JWM series screw lift

NegotiableUpdate on 10/30

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Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Product Details

The JWM series worm gear screw elevator is widely used in industries such as machinery, metallurgy, construction, and water conservancy equipment. It has many functions such as lifting, lowering, pushing with auxiliary components, flipping, and adjusting various height positions. JWM worm gear screw liftIt is a basic lifting component with many advantages such as compact structure, small volume, light weight, wide power source, no noise, easy installation, flexible use, multiple functions, multiple supporting forms, high reliability, and long service life. It can be used individually or in combination, and can accurately control and adjust the height of lifting or propulsion according to a certain program. It can be directly driven by an electric motor or other power, or manually operated. It has different structural and assembly forms, and the lifting height can be customized according to user requirements.

JWM series spiral elevator features:
1. The JWM type (trapezoidal screw type) is suitable for low-speed and low-frequency applications, and its main components are precision trapezoidal screw pairs and high-precision worm gear pairs.
2. Economical price, compact structure, easy operation, and convenient maintenance.
3. Low speed and low frequency: mainly used in places with high loads, low speeds, and no need for frequent work.
4. Maintain load: The trapezoidal screw has an automatic locking function, which can maintain load even without a braking device.

Note: When subjected to large vibrations and impact loads, the self-locking function may fail. In this case, please apply an external braking device.

JWM series - worm gear screw elevator

Introduction

JWM spiral lift [trapezoidal screw lift] is suitable for low-speed and low-frequency applications, with the main structural components being precision trapezoidal screw pairs and high-precision worm gear pairs. Compact structure, easy operation, and convenient maintenance. The trapezoidal screw has an automatic locking function, which can maintain the load even without a braking device. Square tail cover design, controlling the screw to not rotate. Advanced processing equipment and assembly technology are the guarantee of high product quality. Advanced design concepts create high-quality products with strong impact resistance, high strength, low noise, long life, and small size.
We can design non-standard products according to customer requirements, such as stainless steel shells and screw spiral elevators, multi head screws, high temperature resistance, low temperature resistance, etc. Complete accessories: dust cover, anti backlash design, safety nut, ball screw, limit switch, overload clutch, potentiometer, encoder, brake, hand crank, installation accessories, etc. Modular combination enriches the product's combination changes. The spiral elevator can be directly combined with any combination of motor/reducer motor/special function accessories, with an integrated design, providing customers with thousands of easy choices. For specific parameters, please consult the local office.

Example of Model Representation Method

List of Basic Parameters

* The allowable torque of the input shaft of the reducer (please confirm during linked operation).

** Including the numerical value of no-load idle torque.

Application Cases

Precautions

1. When choosing a lift, regardless of static load, dynamic load, or impact load, it must not exceed the maximum load it is allowed to bear. Choose a lift with sufficient capacity based on safety factors, usage travel, and the stability of the calibration screw.

2. It is important to pay attention to the matching between the speed of the screw shaft and the load it can withstand, and to verify the allowable large load, allowable external load, and allowable speed of the screw shaft for the elevator. Exceeding the product's data will cause significant damage to the elevator equipment.

3. The surface temperature of the deceleration part of the elevator during operation should be controlled within-15Within the range of ℃~80 ℃, ensure that the surface temperature of the movable nut is also within the above range.

4. The allowable speed of the input shaft is1500r/minThe input shaft must not exceed this speed.

5. JWMandJWBNone of them can operate continuously:

Load time rate of a single elevator（%ED）To30Calculated in units,JWMThe load time rate of the trapezoidal screw type shall not exceed20%ED，JWBThe load time rate of ordinary ball screw shall not exceed30%ED

Load time rate%ED=

×100%

1Working time of action cycle

1Working time of action cycle+1Rest time of action cycle

6. When connecting multiple elevators on the same axis, it is necessary to verify the strength of the input shaft so that the torque borne by each elevator is within its allowable input shaft torque.

7. The starting torque of the driving source should ensure that the torque used is200%The above.

8. When working below zero degrees Celsius, the efficiency of the entire machine decreases due to changes in the viscosity of the lubricating oil, so it is necessary to select sufficient driving sources.

9. JWMIn theory, it has self-locking function, but working in situations with large vibration and impact can cause the self-locking function to fail. Therefore, an additional braking device or a driving source with braking must be added.

JWBThe type elevator itself does not have self-locking function. In order to prevent reverse rotation due to axial load and the self weight of the screw, a braking device must be added or a driving source with braking must be selected. Please ensure that the braking torque is greater than the holding torque.

10. The operating environment of the elevator is as follows:

Usage location	Indoor areas without rainwater intrusion
Surrounding air	Dust is in a general factory state
ambient temperature	-15℃～40℃
relative humidity	85%below

11. When the elevator works in a dusty area, please be sure to choose the dust cover expansion sleeve attachment to protect the screw rod. When using outdoors, please consider using itUse a cover or other device to prevent the machine from being directly exposed to wind and rain.

12. When the elevator is working, it is not allowed to manually stop it, otherwise it will cause serious damage to the elevator.

13. Please do not use it under loadJWBThe input shaft drive mode of the model has been changed to manual operation, and the load may cause the input shaft to rotate very dangerouslyRisk.

JWM worm gear screw lift-Please contact our company to provide you with specific installation dimensions and external parameters for the screw lift.