Hydraulic direct acting brake

NegotiableUpdate on 05/06

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Overview

Hydraulic direct acting brake, abbreviated as long stroke brake (three-phase brake); There are three types of hydraulic push rod dual brake shoe brakes, abbreviated as push rod brakes. The holding brake is the brake of the bridge crane, as well as the anti-collision zero position device. The installation operation varies, and the brake is divided into three types: normally closed, normally open, and comprehensive. Most cranes use normally closed brakes, which are closed when the mechanism is not in operation. If you want the mechanism to work, simply release the brake and separate the friction pair of the brake.

Product Details

Hydraulic direct acting brakeHydraulic direct acting brake

It can be divided into two types: normally closed and normally open. The normally closed brake is often in the closed state. When the mechanism is working, external forces such as electromagnets or electric hydraulic push rods can be used to release the brake. On the contrary, normally open brakes are often in a loose state and can only be closed when external force is applied. From the perspective of work safety, all working mechanisms of the crane should adopt normally closed brakes. From the perspective of work status,0Choose normally closed mode, only release the work when powered on, to avoid sudden power failure and heavy objects falling freely and injuring people.

The types and structures of brakes commonly used in bridge cranes include short stroke electronic block brakes, long stroke tile brakes, hydraulic push rod tile brakes, hydraulic electromagnetic tile brakes, etc. Block brake ① Short stroke electronic block brake: Short stroke brake has a simple structure, light weight, and fast braking. The disadvantages are short impact and noise life, small braking torque, and sometimes residual magnetism, which is only suitable for lifting mechanisms. If there is no explosion-proof type and a DC power supply is needed, the electromagnet needs to be replaced.

Long stroke block brake: The advantage of this type of brake is that it can achieve a longer stroke0The braking torque is high, the braking is fast, there is little residual magnetism, and it is relatively safe. The disadvantage is that the impact and noise are not long-lasting enough, the components are numerous and complex, the volume and mass efficiency are low, and it is only suitable for lifting mechanisms. Electric hydraulic block brake: using hydraulic electromagnetic blocks instead of long stroke block brake electromagnets, withYWZ(Hydraulic push rod) andYDWZThere are two types of hydraulic electromagnets.YWZSmooth braking.

No noise, small size, suitable for operating and rotating mechanisms. Due to its slow stopping action, it is not suitable for use in lifting mechanisms to prevent slipping hooks.YDWZThe model has good performance in various aspects and does not require frequent adjustments, only a DC power supply is needed. Belt brake: subject to external dimensions0The braking torque requirements are very high0In such situations, belt brakes can be considered, which are commonly used on mobile cranes. The disadvantage of belt brakes is low safety, and breaking the brake band can cause serious consequences.