Mine Hoist Disc Brake System

1、 Introduction to disc brake device

The disc brake is a new high-performance brake with a rear mounted oil cylinder structure, which is the trend direction of brake development today. It has the following advantages: small size, light weight, small inertia, fast action, good adjustability, high reliability, high universality, simple foundation, and convenient adjustment and maintenance. This brake can be used for various machinery such as mine hoists, belt conveyors, aerial ropeways, ship lifts, etc. Its drive and control are completed by a separate hydraulic station.

2、 Schematic diagram of disc brake device structure

As shown in Figure 1, the disc brake device consists of a disc brake (1), a bracket (2), bolts (4, 5), etc. The disc brake (2) is paired with bolts (4, 5) to the bracket, and each bracket can be simultaneously installed with 1, 2, 3, 4, 5, 6, pairs, or even more.

The disc brake consists of brake shoes (8), lining plates (9), butterfly springs (10), hydraulic components (11), connecting bolts (13), sealing rings (12), brake bodies (14), etc.

3、 Working principle of disc brake device

The disc brake is released by the pressure oil provided by the hydraulic station, and is braked by the customized disc spring force.

When the oil chamber Y is pressurized, the disc spring is compressed. As the oil pressure P increases, the disc spring group is compressed and stores spring force. The greater the spring force, the greater the gap between the brake shoe and the brake disc. At this point, the disc brake is in a released state. Adjust the brake shoe clearance to б 1 is 1mm. When the oil pressure P decreases, the spring force is released, pushing the lining brake shoe and moving towards the brake disc. When the brake shoe clearance is б When 1 is 0mm, the spring force F acts on the brake shoe and generates positive pressure. As the oil pressure P decreases, the positive pressure increases. When the oil pressure P is 0, the maximum positive pressure N is Nmax. Under the force of N, the maximum friction force between the brake shoe and the brake disc is the maximum braking force. (Full braking state)

4、 Process characteristics of high-end disc brake device

The disc brake produced by our factory is an improved high-performance brake, with all internal core components using CAM/CAD computer-aided design and CNC fully CNC machining process. The surface is treated with anodized nickel plating, and the appearance is smooth and exquisite. On the basis of CNC machining technology, key sealing components such as pistons and oil cylinders adopt CNC grinding machining technology, which leads the industry in terms of machining accuracy and surface finish of parts. It also extends the service life of sealing rings and reduces the frequency of replacement. In addition, the oil cylinder adopts a rear mounted structure, which can prevent any dirt from coming into contact with the brake shoes. At the same time, the brake sealing system adopts imported materials, and the pipeline device adopts high-precision cold drawn pipes with advanced technology and exquisite appearance, ferrule type hinge joints, and aviation grade surface nickel plated high-pressure ball valves, ensuring the high quality and stability of the entire oil circuit system to the maximum extent.

1. The parts are treated with anodizing, with a beautiful and bright surface, and a high-end atmosphere;

2. All structural parts adopt CAM/CAD computer-aided design, CNC fully CNC machining process and CNC grinding process, leading the industry in product accuracy;

3. The oil cylinder adopts a rear mounted structure, which can prevent any oil stains from coming into contact with the brake shoes;

4. Adopting unique structural design, completely avoiding problems such as piston jamming;

5. The core components are all made of alloy forged parts and standardized heat treatment processes, completely avoiding the fracture of the connecting shaft of the cylinder body (material reports and heat treatment reports can be provided);

6. The brake sealing system is made of imported materials, ensuring stable, reliable and durable sealing;

7. The disc spring adopts domestic first-class brand products, with a normal service life of at least 5 years;

8. The pipeline device adopts high-precision cold drawn pipes with advanced technology and exquisite appearance, ferrule type hinge joints, and aviation grade surface nickel plated high-pressure ball valves, which have superior sealing performance.

9. The bracket adopts a welded structure, with overall annealing to remove stress. The installation joint surface is machined to ensure size and accuracy.

10. The disc brake has a fast response, and its safe braking idle travel time does not exceed 0.3 seconds. The fatigue strength of the disc spring is not less than 500000 times, and the driving and control are completed by a hydraulic station.

11. The brake device is equipped with a diverter valve block, which has a more exquisite and upscale appearance, facilitating on-site installation and pipeline connection. Each pair of brakes is equipped with a stop valve, and maintenance is carried out one by one without affecting production.

12. The oil leakage circuit of the brake device adopts high-precision cold drawn pipes, and each oil circuit is equipped with a separate transparent oil collection device, which is convenient for on-site observation of the leakage situation of each brake body.