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Disc type brake automatic compensation gap braking clamp

An automatic compensation and disc brake technology, applied in the direction of brake type, brake actuator, axial brake, etc., can solve the problems of complex structure, inconvenient maintenance, etc., and achieve convenient clearance adjustment, timely and reliable braking, and convenient adjustment The effect of maintenance

Active Publication Date: 2009-07-15
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcome the problems of complex structure and inconvenient maintenance of the dual-hydraulic cylinder compensation brake clearance device
Drilling rig drawworks drum rotates to drive the brake disc to rotate

Method used

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  • Disc type brake automatic compensation gap braking clamp
  • Disc type brake automatic compensation gap braking clamp
  • Disc type brake automatic compensation gap braking clamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: see figure 1 . Brake calipers for disc brakes that automatically compensate for gaps are mainly composed of a disc-shaped brake disc 1, 2 working pliers 2, 2 safety pliers 3 and an arc-shaped caliper frame 4. The brake disc 1 is fixed on the drum of the rig winch, and the caliper The frame 4 is fixed on the base of the winch by screws, and the two working tongs 2 and the two safety tongs 3 are respectively fixed on the tong frame 4 by the support shaft 11 .

[0019] refer to figure 2 . The working tongs 2 are mainly composed of a working oil cylinder 18, a piston rod 16, a working lever 8, a pliers body 6, a coil spring 12, a support shaft 11 and a brake block 5, and countersunk screws are used to fix the brake blocks 5 to the two caliper bodies 6 respectively. inside. The two caliper bodies 6 are respectively connected to the ends of the two working levers 8 through pin shafts 7 . The middle of the support shaft 11 is cylindrical, and the middle cyl...

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Abstract

The disc brake automatically compensates the clearance of the brake caliper, which is applied to the brake device of the oil drilling rig. The feature is that the working pliers are mainly composed of a working oil cylinder, a piston rod, a working lever, a pliers body, a coil spring, a support shaft and brake blocks, and the brake blocks are respectively fixed inside the two caliper bodies. The two caliper bodies are respectively connected to the ends of the two working levers through pin shafts. The other ends of the 2 working levers are respectively fixed with clamp cylinder pin shafts. A working oil cylinder is connected between the pin shafts of the two clamp cylinders. Spring tensioning screw rods are respectively fixed at the two ends of the pin shafts of the two clamp cylinders. Coil springs are connected to the two opposite spring tensioning screw rods. The working cylinder mainly includes a cylinder body, a piston rod and a cylinder head. There is a pawl mechanism between the piston rod and the cylinder head. The effect is: the gap between the brake block and the brake disc can be compensated. After the brake pads are worn out, the gap compensation can be realized safely and quickly, ensuring the safety and reliability of the braking system. Make gap adjustment automatic, convenient and fast.

Description

Technical field: [0001] The invention relates to a braking device for an oil drilling rig, in particular to a drilling rig winch disc brake caliper capable of automatically compensating the gap between a brake block and a brake disc. Background technique: [0002] Disc brake is a key device to ensure the safety of oil drilling rigs, and its braking reliability directly affects the safety of the entire drilling operation. As one of the key parts of the disc brake, the working pliers are more and more prominent in its importance in terms of safety and reliability. When the working tongs perform the braking task, friction occurs between the brake pads on the working tongs and the brake disc, and the brake pads wear out quickly. After the brake pads are worn, the gap between the brake pads and the brake disc increases. The brake pads of the working caliper have a larger stroke to perform the braking task, and the braking sensitivity and braking force are reduced. How to compe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D55/2265F16D65/095F16D65/20F16D65/72B66D5/14F16D65/18
Inventor 马青芳杨辉邵强郭慧娟
Owner BC P INC CHINA NAT PETROLEUM CORP
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