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Disc type brake automatic compensation gap braking clamp

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

Active Publication Date: 2008-04-30
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: Refer to Fig. 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] See 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 cylinder o...

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Abstract

A caliper with automatic gap compensation for a disk brake applies to a brake device of an oil drilling rig. The invention is characterized in that the caliper comprises essentially a working cylinder, a piston rod, working levers, caliper bodies, spiral springs, a support axle and brake blocks, wherein, the brake blocks are respectively fixed at the inner sides of the two caliper bodies; the two caliper bodies connect respectively with ends of the two working levers via pin rolls; the other ends of the two working levers are respectively provided with a fixed clip-cylinder pin roll; the working cylinder is connected between the two clip-cylinder pin rolls; two ends of the two clip-cylinder pin rolls respectively have a spring tensioning screw; the spiral springs are connected between two opposite spring tensioning screws; the working cylinder comprises essentially a cylinder body, the piston rod and a cylinder cover; a pawl mechanism is arranged between the piston rod and the cylinder cover. The invention has the advantages that the caliper can compensate the gap between a brake block and a brake disc; the gas compensation can be safely and quickly carried out after the brake block is worn, thereby guaranteeing the safety and the reliability of the brake system; the gap compensation can be done automatically, conveniently and quickly.

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 Applications(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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