Jiaozuo brake

Overhaul and adjustment of crown block brake

According to the requirements of crane safety regulations, the brakes should be regularly inspected. During the installation, debugging, and use of the brake, special attention should be paid to the following adjustments:

(1) Adjustment of braking torque: The braking torque must be adjusted according to the specified requirements, which is the basic work during the installation, debugging, and operation of the brake (checking for any changes). According to the standard requirements of the brake, the braking torque value should have a clear scale, and the torque value can be adjusted according to the scale or line of the torque value.

(2) Adjustment of the working stroke of the driving device: The working stroke of the brake driving device should be adjusted at the working environment temperature, and its rated working stroke value should be indicated in the product manual or on the driving device. During use, it is necessary to regularly observe the changes in the working stroke based on the frequency of use. Especially for brakes without an automatic compensation mechanism for brake pad wear, the working stroke of the driving device must not be equal to its maximum stroke (rated stroke), otherwise serious consequences of loss of braking force will occur. When stopping after use, the compensation stroke of the driving device should be checked (the rated stroke of the driving device minus its working stroke). If the compensation stroke is too small, it should be adjusted immediately to avoid reducing the compensation stroke and losing braking force due to cooling deformation caused by thermal expansion of the brake pad during use.

(3) Adjustment of compensation mechanism: The installation of automatic compensation mechanism for brake pad wear (referred to as compensation mechanism) on the brake can avoid frequent adjustment of the working stroke of the driving device during the use of the brake. However, the compensation mechanism should be adjusted and reliably fixed, otherwise if the working stroke of the driving device is not adjusted in a timely manner after the brake pad is worn, the braking force will be lost. The adjustment of the compensation institution should be made according to the product manual, and regular observation should be made to see if there are any changes during use.

(4) Adjustment of backlash: After the working stroke of the brake drive device is adjusted, the total backlash of the brake pad is also determined accordingly. The backlash on each side of the brake pad should be basically equal to avoid friction caused by large backlash on one side and "unable to open" on the other side, which can cause a sharp increase in unilateral friction temperature, reduce braking performance, and exacerbate wear of the brake pad. Therefore, the backlash should be adjusted according to the product manual.

Electric hydraulic brake

YWZB YWZ3B YWZ4B YWZ5 YWZ8 YWZ9 YWZ12 YWZ13 YW YWL TYWZ2 YWP

Electromagnetic block brake

JZ (TJ2A) MW (Z) ZWZA

ZWZ2 ZWZ3ADCW3

Electromagnetic failure protection disc brake

5SE 561SE 560SE 56SE

DCPZ12.7 4SE 3SE ST1SE ST2SE 450SE

Hydraulic failure protection disc brake

5SH 4SH 3SH 450SH ST1SH ST2SH ST3SH ST4SH

SB (YQP) SBDST5SH ST10SH

ST16SHST25SHST25SH-AST40SH904SHSBB

Electro hydraulic arm disc brake

YPZ2 I, II, III

YPZ2 IV, V, VI

Pneumatic caliper disc brake QP12.7 5SP4SP3SP450SPPDADP60M-ADP61M-ADP62M

Hydraulic direct acting disc brake DADH75ADH60ADH90ADH120DADH80DADH90DADH120DADH103DADH195

Electric hydraulic thruster

YT1 Ed

MYT1 hydraulic thruster motor model

BO62Z YDT80-2 ASF82A ASF102A B112Z A028012

A028022 three-phase asynchronous motor

Explosion proof electric hydraulic thruster

BYT1 BED