BYWZ4 Explosion proof Electric Hydraulic Drum Brake
The BYWZ4 explosion-proof electric hydraulic drum brake core adopts a "normally closed+electric hydraulic drive" working logic, with spring energy storage braking and hydraulic push release as the core mechanism, combining safety, reliability, and explosion-proof adaptability. When powered on, the BED series explosion-proof electric hydraulic thruster operates with electricity, and the internal hydraulic oil is compressed to generate thrust, overcoming the pre tension force of the brake spring and pushing the brake arm to drive the brake pad away from the brake wheel. At this time, the brake is in the released state and the equipment can operate normally; When there is a power outage or malfunction, the thruster loses power, the hydraulic thrust disappears, the brake spring quickly resets, and the brake pads on both sides synchronously clamp the brake wheel through lever transmission. With the help of the friction between the asbestos free pad and the quenched brake wheel, precise deceleration or parking braking is achieved. Throughout the entire work process, the explosion-proof shell, sealing structure, and low spark components are fully guaranteed to prevent electrical sparks and mechanical friction sparks from leaking out, ensuring intrinsic safety in flammable and explosive environments.
- Authoritative explosion-proof, safety compliant: The explosion-proof mark covers Ex dI (coal mine)/Ex dIICT4 (gas environment), complying with multiple national standards and international certifications; High strength explosion-proof shell+precision sealing design, with a protection level of IP65 (optional IP69K), suitable for high-risk and harsh environments.
- normally closed structure, automatic brake when powered off, braking response <= 0.5s, power-off braking torque maintained >= 12h, eliminating the risk of runaway.
- The core hinge point self-lubricating bearing has high transmission efficiency and does not require additional lubrication; The interlocking distance equalization device avoids braking deviation and the asbestos free card pad is easy to replace.
- suitable for environments ranging from -20 ℃ to+40 ℃, adaptable to multiple working modes, supporting standard and customized voltages, covering various high-risk equipment requirements.
Widely used in high-risk scenarios such as coal mine underground belt conveyors, chemical reaction kettle supporting transmission equipment, oil and gas field lifting machinery, port explosion-proof loading and unloading equipment, metallurgical steel rolling machinery, etc., it is the core safety component of lifting transportation and transmission systems under various explosion-proof conditions.
- Clearly define the environmental type, choose Ex dI model for coal mine gas environment, and Ex dIICT4 model for factory explosive gas/dust environment;
- Explain the work schedule, power supply voltage, and special environmental requirements (such as high temperature and high dust) in order to customize the adaptation plan.
Q: What parts should be focused on for daily maintenance of BYWZ4 series brakes? How often is it necessary to undergo professional testing?
A: Daily maintenance focuses on: 1.Tightening of explosion-proof shell bolts and integrity of seals; 2.Brake clearance and asbestos free pad wear (reaching the threshold and requiring timely replacement); 3.Compression amount of brake spring (checked by ruler); 4.Hydraulic oil level and oil circuit smoothness of the thruster. Professional testing should be entrusted to institutions with explosion-proof qualifications, with a recommended time interval of no more than 3 years, and the inspection report and rectification situation should be recorded.
A: Prioritize the following steps for troubleshooting: 1.Check the hydraulic oil level of the thruster. If it is insufficient, supplement the hydraulic oil that meets the specifications. At the same time, check whether there is any blockage or leakage in the oil circuit; 2.Check the electrical wiring contact condition and confirm whether the power supply voltage fluctuation is within the allowable range of ± 10%; 3.Check if the brake clearance is too large and calibrate it to the specified range through the adjusting device; 4.Check if the friction pad is severely worn or contaminated with oil, replace the pad if necessary, and clean the surface of the brake wheel.
A: It is not recommended to replace non original parts. The original brake pads are made of asbestos free material and comply with the GB6332.2-86 standard. The friction coefficient and wear rate are precisely matched in the product design; The supporting BED series thrusters have explosion-proof certification and safety marks. Non original accessories may damage explosion-proof performance, affect braking stability, and even cause equipment failure, and may result in loss of product warranty rights.
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