HXTS-4-70/210 Multipole Tube Sliding Contact Line

1HXTS-4-70/210Multi pole tube sliding contact lineProduct Introduction
（1） The power supply safety sliding contact line series products are innovatively developed and produced by our factory with reference to relevant foreign materials and products, and in response to the situation where sliding lines in domestic lifting facilities are prone to accidents. There are three types of products in this series: composite, square tube, and spliced safety sliding contact wires, which are products of our factory.
（2） The series of power supply safety sliding contact line products developed by our institute are complete and widely used. They can be used for lifting machinery such as electric hoists, beam and bridge cranes in factories, mines, warehouses, stations, ports and docks; Elevators, automated production lines, and other conductive equipment for mobile operations.
（3） Users can choose the appropriate specification of power supply safety sliding contact wire according to the model of the lifting machinery, in order to achieve technical and economic indicators such as meeting the electricity needs of the lifting machinery, saving electricity, energy, and reducing energy consumption.
（4） The correct selection of power supply safety sliding contact line is the key to achieving technical and economic benefits. According to reliability research, using this sliding contact line can improve the reliability of the system by two orders of magnitude. Users should carefully refer to this manual when selecting the power supply sliding contact line, fully understand the product performance, characteristics, etc., in order to achieve * usage effect.

IIHXTS-4-70/210Multi pole tube sliding contact lineWorking principle, characteristics and uses of the product

（1） Main components and their working principles
The power supply safety sliding contact line device consists of two main components: conduit and conductor, as well as some auxiliary components, as shown in the figure:
1. Catheter: It is a semi enclosed shaped tubular component that is the main part of the safety sliding contact wire. It can be embedded with 2-9 guide rails as power supply wires as needed, and each guide rail is insulated from each other and from the outer shell to ensure the safety of power supply. And effectively prevent electric shock accidents for maintenance personnel during live maintenance. Our factory produces conduits with a length of 4m each, which can be connected to any desired length. Generally, conduits are made in straight lines, but can also be made in circular arcs according to special requirements.
2. A conductor is a set of brush housing frames that run inside a conduit. It is driven by a fork (or traction chain, etc.) placed on the electrical mechanism (such as a crane, trolley, electric hoist, etc.) to synchronize with the motor, transmitting the electrical energy through the guide rail and brush to the motor or other control components. The number of poles of the conductive electric brush is 3-16, corresponding to the number of guide rails in the conduit.
（2） Product Features
1. Safety: The power supply safety sliding contact wire housing is made of high insulation performance engineering plastic. The protection level of the shell can reach IP13.IP55 as needed, which can protect against rain, snow, frost, freezing attacks, and foreign object contact. The product has experienced various environmental conditions. Good insulation performance, no harm to maintenance personnel touching the outside of the transmission conduit.
2. Reliability: Conductive performance of transmission rails Fast heat dissipation, high allowable current density, low impedance value, and small circuit loss. Electric brushes are made of metal copper and carbon alloy materials with high conductivity and wear resistance. The conductor is flexible in movement and has good directional performance, effectively controlling contact arc and series arc phenomena.
3. Economy: The power supply safety sliding contact line device has a simple structure, high allowable current density, low resistivity, low voltage loss, and can save about 10% of electricity. It can replace steel with plastic and copper with plastic. The design is novel and does not require other insulation structures or compensation lines. It is installed on the same side of the crane control room. Save installation materials and expenses.
4. Convenience: The power supply safety sliding contact line device integrates multiple pole busbars into one conduit, making assembly simple. The fixed bracket, connecting clip, and suspension device are all supplied as universal parts. Assembly, disassembly, adjustment, and maintenance are also very convenient.
（3） Purpose: The power supply safety sliding contact line device can be used for electric hoists, electric beam and bridge cranes, stacker cranes, automatic detection lines for electromechanical products, and automated production lines; Mobile electric tools and other mobile conductive equipment, as well as fixed busbar trunking in factories, mines, workshops, and office spaces.

IIIDHG Multipole Tube Sliding Contact LineApplicable occasions and models of product structure type

（1） Structural type: The power supply safety sliding contact wire conduit consists of an aluminum alloy shell (metal type), a plastic tube wrapped with an aluminum alloy shell (composite type), a plastic conduit, a conductor, an intermediate connector (power supply), an end cap (end power supply), and other accessories. The shape of the conduit is square or assembled.

1. Reinforced engineering plastic conduit, with a square cross-sectional shape, is suitable for outdoor environments with temperatures ranging from -30 ° C to+55 ° C. Its guide rail cross-sectional area includes: 10, 16, 25, 35, 50, 70, 95, 140mm2, etc. The number of poles on its guide rail includes: 3, 4, 5, 7, 8, 16 poles, etc. Its cross-sectional shape is shown in the figure:

2. Metal composite conduit: it is a reinforced type pipe with a layer of aluminum alloy composite shell to improve the temperature resistance and anti-aging performance of the conduit. It is suitable for outdoor and high-temperature workshops where the ambient temperature is between -30 ℃ and+65 ℃. Its sectional shape is shown in the figure below:

3. Metallic: The metal conduit is made of aluminum alloy shell and insulated protective material, suitable for environments with temperatures ranging from -40 ° C to+80 ° C. Its cross-sectional shape is shown in Figure 3-4.

4. Product specifications and varieties are shown in the table:
Specification and model of safety sliding contact wire
1. Reinforced engineering plastic pipe and composite plastic pipe outer packaging aluminum alloy shell

2. Metal type (aluminum alloy shell)

（2） Model number

1. Identification method for sliding contact wire conduit model (1) (2)

2. Electrical conductor model representation

Example:
1. HTS-4-16/80A safety sliding contact wire reinforced engineering plastic conduit with a 4-pole cross-sectional area of 16mm2 and a current capacity of 80A.
2. The aluminum alloy shell of HXTL-4-16-80/A safety sliding contact wire has a 4-pole cross-sectional area of 16mm2 and a current capacity of 80A.
3. Special specifications and models can be specially processed and manufactured.

（3） Specifications and basic parameters

Specification and Basic Parameters Table of Safety Sliding Contact Line

Physical parameters of HXTS (L) safety sliding contact line guide rail

Physical parameters of conductive brush

,

4、 Main technical performance and usage environment of the product
（1） Main technical performance and safety indicators

（2） Environmental conditions for use
1. Environmental temperature: reinforced -30~+55 ° C
Metal shell composite type -30~+65 ° C metal splicing type -40~+80 ° C
2. Atmospheric conditions:+20 ° C, relative humidity not exceeding 95%
3. Pollution level: IP13 Level 3, IP55 Level 3
4. Vibration and shock: 10-2000Hz acceleration rate 49m/S2

5、 Product Component Description
（1） Power supply conduit: It carries the current introduced by the power supply and delivers it to the conductor. Each conduit is 4M long and can also be customized according to the requirements of the demand. Please refer to Table 3-1 for specifications
（2） Conductor: A device that slides in contact with a guide rail inside a conduit to introduce current and provide current to other mobile electrical appliances (see Figure 5-1).

（3） Middle inlet box: a device that introduces power current from the middle of the conduit (Figure 5-2)
（4） End inlet box: a device for introducing power current from the top of a conduit (Figure 5-3)

（5） Connection clip: located at the junction of adjacent conduits, used for connection fixation and insulation (Figure 5-4)
（6） Shape clamp: keep the catheter from deforming (Figure 5-5, 5-6)

（7） Fork: Transmits moving thrust or tension to the guiding device, and moderately absorbs transmission errors and impacts. Fork can be matched according to the number and model of guiding devices (Figure 5-7)
（8） Outdoor safety sliding contact line trench structure

6、 Precautions for selecting products
（1） Catheter selection
1. Table lookup method: Determine the specifications of the conduit by referring to Table 3-1 or Table 6-1 based on the total power of the load configuration, load duration, operating environment, tonnage of the lifting machinery, and its rated working current.
2. Power estimation method
(1) Estimate the total power ∑ p of the load based on its characteristics
a. Simultaneous operation of n loads: ∑ p=Pa+Pb+...+Pn
b. N loads working simultaneously: ∑ p=pa+pb+pc
Among them: Pazui has one larger load power; The power of the other two loads, PB and PC, that may act simultaneously.
(2) According to the table below, check the three-phase AC power PN of the power supply sliding contact line conduit carrying line to ensure PN>∑ p
The load duration and allowable ambient temperature are corrected by coefficients Kt and K ε.
Crane Power - Quick Reference Table for Conduit Track Cross Section

Correction coefficient for conduit interception flow rate

Correction factor table for power continuity rate

3. Current estimation method
(1) Estimation of working current If: Select a conduit based on the rated working current of the load. When the working temperature is 40 ° C, a general crane is used;
If-Ifa+Ifb+Ifc
Ifa zui high-power motor conversion or load duration rate.
Working current at Jc=100%
Ifb, Ifc - other motors may operate simultaneously, and when Ic=100%, convert the operating current. For large capacity, multi motor cranes, calculate using the following empirical formula.
If=Kalc+KbΣ |+A
Among them: Ic - total current of other motors of the crane (when Jc=25%)
∑ i-Total current of other motors of the crane (when Jc=25%)
A - The working current of other loads is generally taken as 10 (A)
Ka, Kb power current conversion coefficient table

(2) Refer to the "Crane Power - Quick Reference Table for Conduit Track Cross Section" to determine the selected specifications and ensure that IN>1f
IN - Continuous current carrying capacity of conduit at 35 ° C
4. Voltage drop verification: After selecting conduits with a length of less than 100m using power or current estimation methods, voltage drop verification may not be required.
(1) Voltage drop△U≈Indicator: General crane△U<7%, Gold Crane△U<5%, other electrical facilities are required according to product standards.
(2) Verification method: Three phase AC load:

_△U≈173lmaxLcosψ _% DC load:_△U≈200lmxL _%
δSUn δSUn
The calculated length of the L-power supply sliding contact line device is m (see power supply method).
δ - conductivity, copper takes 50m/Ω mm²
S-rail cross-sectional area mm²
Un rated working voltage
COS PSI - power factor, 0.65 for wire wound motors and 0.5 for asynchronous motors.
Lmax zui high load current
lmax=K_rise(LFA+LFB+LFC) LFA, LFB, LFC see previous comments
K_riseThe coefficient of motion is taken as 2 for wire wound motors and 2-2.5 for DC motors

（2） Power supply mode
When the voltage drop exceeds the standard, in addition to using a larger first level cross-sectional conduit, different power supply methods can be used to change the calculated length L.

（3） Determination of thermal expansion compensation
1. Indoor installation: The total length of the line is within 100m, and there is generally no heating expansion compensation point. During assembly, a gap of 5mm should be left at the conduit joint.
2. Outdoor installation: When the line exceeds 100m, thermal expansion compensation points should be considered.
(1) Gap compensation method:
Principle: There is a gap between adjacent conduits at the junction of the conduits, which is used for thermal expansion compensation extension. The two ends of the compensation point should be fixed and suspended, and the rest should be floating and suspended. The compensation gap for each section of the conduit is as follows:

		Thermal expansion compensation table Environmental temperature during installation (° C) -20 -10 0 10 20 30 or above Compensation gap a (mm) 12 10 8 6 4 2
		Thermal expansion compensation table Annual temperature difference △ t Lmax 20°C 30m 30°C 22m 40°C 15m 60°C 13m

Compensation section determination: For power supply safety sliding contact lines with a total length exceeding 100m, considering the thermal expansion changes of the entire pipeline, two methods are used: fixed suspension and floating suspension. The compensation section is located between the two fixed suspensions. Based on the annual temperature difference, the maximum distance Lmax between the fixed suspensions on both sides of the compensation is determined, which is generally not less than 12cm. The fixed suspension configuration is shown in the following figure:

(2) Separation compensation method
Principle: In situations where there is a large temperature difference in the environment and the operating speed is not high, the separation compensation method can be used. The conduit is separated by a certain distance at the joint for thermal expansion compensation, and a trumpet inlet tube is installed at the conduit separation point. The separated conduits are powered separately.

The conductor is driven by a spring bracket to maintain its correct position when detached from the conduit. To ensure continuous power supply, a bipolar conductor must be used. Compensation section setting: The compensation section is located at the midpoint of two fixed suspensions, with a general interval of 500mm.

Installation requirements
a: The two ends of the separation must be powered separately, and the phase must be *.
b: There must be a mouthpiece inlet at both ends of the separation catheter.
c: The separation catheter should be aligned with the centerline and maintain a coaxiality of 1mm.
d: The spacing distance between spring bracket conductors shall not be less than 550mm.
Example: The ambient temperature for use throughout the year is -20 ° C to+55 ° C. During installation, the ambient temperature is T=18 ° C. Try to calculate the thermal compensation gap X. The temperature difference △ t=75 ° C. Compensation gap:

（4） Maintenance section
1. Principle and Function: When the lifting equipment enters the maintenance section, the working section of the power transmission conduit can still be powered on. The maintenance section and the working section require separate power supply phases *, and the connection between the two sections is insulated. When the crane needs maintenance, the power supply to the maintenance section can be cut off.

2. Type
(1) Connected type: In a conduit, two sections of guide rails are separated by insulating material.

(2) Separate type

7、 Installation points

（1） Installation location selection
1. Install as close as possible to the same side of the mobile power receiving facility
2. The installation location should avoid high temperature heat sources, strong light exposure, and red and ultraviolet radiation as much as possible.
3. It should be ensured that it is not affected by objects and easy to repair in the future.
（2） Determination of bracket installation method
Installation methods can be provided by the factory for appointment and customization.
（3） Preparation work before installation
1. Draw an installation diagram according to the terrain and factory requirements. Unless there are special circumstances, the preparation work can be carried out according to the following diagram.

2. Bracket assembly, each straight conduit is 4m long, and the suspension spacing of the brackets is installed according to the following diagram. The spacing of the brackets can also be increased or decreased according to the on-site environmental conditions. The bracket must be firm and arranged neatly and aesthetically.
3. Installation inspection
(1) Check for any cracks, distortions or deformations outside the catheter, and ensure that the guide rail joints inside the catheter are straight and smooth.
(2) The conductor should pass through the conduit flexibly and freely.
(3) The electric brush inside the conductor should be flexible, intact, and have a certain degree of elasticity.

（4） Install conduit
1. According to the installation diagram, arrange the positions of the conduit, thermal expansion compensation tube, maintenance conduit, and intermediate power supply section conduit in order to facilitate the smooth progress of the work.
2. The shaping clamp and suspension clamp can be pre installed on each conduit, and the pulling position of the suspension clamp can be adjusted during lifting, and the conduit can be adjusted to be parallel to the motion track of the powered machinery. The allowable deviation for horizontal height and horizontal distance measured at the suspension bracket is 2mm and 4mm, respectively.
3. There are two types of rail connections: angled connection and docking. The joint screws must be tightened to prevent loosening and prevent overheating when passing current; The inner surface of the guide rail must be aligned in the same plane to ensure a smooth transition. When repeatedly pushing the conductor at the joint, there should be no collision or obstruction feeling. If necessary, a fine file can be used to smooth the transition. The connection weight of the guide rail is the key to the installation quality of the sliding contact line and must be operated carefully.
4. The conduit connection adopts a connection clamp, and the lower edge of the connection clamp is embedded in the conduit groove to ensure the coaxiality of the two conduits.
5. Install the end or middle inlet box cover, and both the end inlet box and the cover should be fixed with screws.
6. Install the fork, which can be welded or bolted to the transmission arm. The transmission arm is installed on the conductive facility, and its surface should be kept at a distance of about 100mm from the center of the conduit. The fork should be inserted into the conductor to ensure free up and down movement throughout the entire line. Its range is 40mm and it can absorb transmission errors and impacts from other directions.
7. When trying to connect the power supply, the following precautions should be taken:
(1) Before power on, recheck the installation of the whole line. After confirmation, the commissioning personnel can enter the operation post, and other personnel should leave the site or enter the safe area.
(2) After connecting the power supply, do not rush to start the crane, observe whether the static power is normal, then start the small car motor, test run two types, and then start the large overhead crane motor. Drive at low speed and observe along the entire line. Pay special attention to whether there is a possibility of collision between the moving parts and the brackets, cement columns, etc. If the following situations are found, they should be corrected immediately:
a、 The catheter has significant abnormalities and should be adjusted or the fork corrected.
b、 There is abnormal noise during the operation of the conductor, and the connection point of the guide rail should be checked for flatness.

8、 Maintenance and troubleshooting

（1） Maintenance and upkeep
During the normal use phase of the power supply sliding contact line, the following relevant components should be regularly inspected:
1. Check the wear of the electric brush in the conduit and replace it if it exceeds the normal wear length.
2. Check the conduit (rail) joint for rust and looseness. Are the fixed value-added and shifting forks loose.
3. Check if the catheter is bent or deformed.
4. Clean the accumulated dust on the conduit, and do not apply excessive force during cleaning to prevent damage to the plastic conduit.
5. When the wear of the electric brush in the conductor reaches a distance of less than 2mm from its maximum extension position, a new electric brush should be replaced immediately.
6. Check the wear condition of the roller. The roller can ensure that the electric brush is in the correct position above, below, left, and right of the conduit. Excessive wear of the roller can also cause the electric brush to wear or continue to lose power.
（2） Fault handling

9、 Ordering and Storage

（1） Ordering: When filling out the purchase order, the user should specify in detail the name and address of the unit, as well as the required power supply sliding contact wire model, specifications, quantity, and other related matters.
（2） Storage and transportation: The main and auxiliary components of the power supply sliding contact line should be packed separately. For parts that are prone to damage, shock-absorbing materials should be used to isolate and rotate them, but attention should still be paid to preventing severe collisions or inversion to avoid damage. If the power supply sliding contact wire arrives at the unit and is temporarily not installed, its storage warehouse should have good ventilation, dryness, and avoid places with high temperature, heat source, and high humidity as much as possible.

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