Automatic clearance adjusting oil cylinder and hydraulic disc brake

A technology of automatic adjustment and clearance, applied in slack adjusters, brake types, brake actuators, etc., and can solve problems such as timely braking

Pending Publication Date: 2022-02-22
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an automatic clearance adjustment oil cylinder and hydraulic disc brake. When the brake pads are worn out, the brake clearance is guaranteed to be unchanged, the response time and braking accuracy of the brake pads are improved, and the brake disc of the drilling rig winch is solved. Timely brake problems during rotating work to ensure the precise production of the drilling rig

Method used

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  • Automatic clearance adjusting oil cylinder and hydraulic disc brake
  • Automatic clearance adjusting oil cylinder and hydraulic disc brake

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Embodiment 1

[0031] Such as figure 1 As shown, an embodiment of the present invention includes a cylinder body 1, one end of the cylinder body 1 is a closed end 2, and the other end is open, the inner cavity of the cylinder body 1 is cylindrical, and the inner cavity of the cylinder body 1 is A main piston 3 and a compensating piston 4 are provided, the main piston 3 is in sealing sliding connection with the inner wall of the cylinder body 1, and the outer peripheral wall of the compensating piston 4 is in sliding sealing connection with the inner wall of the cylinder body 1, in order to ensure the main The smoothness and tightness of the movement of the piston 3 and the compensation piston 4, the inner wall of the cylinder body 1 is a smooth surface, the compensation piston 4 is arranged between the main piston 3 and the inner wall of the closed end 2, the A compensation oil chamber 5 is provided between the compensation piston 4 and the inner wall of the closed end 2, a brake oil chamber...

Embodiment 2

[0038] Such as figure 2 As shown, the second embodiment of the present invention discloses a hydraulic disc brake, including the above-mentioned automatic gap adjustment oil cylinder, caliper arm 22, support shaft 23, caliper frame 24, back plate 25, brake pad 26, brake Disc 27 and spring. The two cylinder ears 12 are respectively rotatably connected with one end of the two pincer arms 22 through a pin shaft, and the pin shafts on the two cylinder ears 12 are connected by a spring, and the two pincer arms 22 are connected by a spring. The middle part is connected to the two ends of the support shaft 23 through pin shaft rotation respectively. The support shaft 23 is fixed on the hydraulic disc brake device through the clamp frame 24, and the other ends of the two clamp arms 22 are connected with a pin shaft. The back plate 25 , the brake pads 26 are fixed on the back plate 25 , and the two brake pads 26 are respectively located on both sides of the brake disc 27 .

[0039] ...

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Abstract

The invention relates to the technical field of petroleum drilling and production equipment, in particular to an automatic clearance adjusting oil cylinder and a hydraulic disc brake, which comprise a cylinder body, one end of the cylinder body is closed, the other end of the cylinder body is open, a main piston and a compensation piston are arranged in the cylinder body, and a compensation oil cavity is arranged between the compensation piston and the inner wall of the closed end. A brake oil cavity is formed between the main piston and the compensation piston, and a one-way valve is arranged on the compensation piston. A containing groove is formed in the middle of the end, facing the inner wall of the closed end, of the compensation piston, the peripheral wall of the T-shaped end of the pull rod is in sealed sliding connection with the inner wall of the containing groove, the other end of the pull rod is fixedly connected with the main piston, and a brake gap is formed between the T-shaped end of the pull rod and the groove bottom of the containing groove. The automatic clearance adjusting oil cylinder has the following advantages: the brake response time is ensured; the automatic control is realized; the automatic clearance adjusting oil cylinder is compact in structure, economical, practical and stable in brake clearance control, the stability of equipment during operation is guaranteed, and production requirements and quality requirements are finally met.

Description

technical field [0001] The invention relates to the technical field of petroleum drilling and production equipment, in particular to an automatic gap adjustment oil cylinder and a hydraulic disc brake. Background technique [0002] Hydraulic disc brakes have been widely used as drawwork brake systems of oil drilling rigs and workover rigs. Brake clearance is an important performance parameter of hydraulic disc brakes, which directly affects the braking performance. At present, during the use of hydraulic disc brakes, with the wear of the brake disc and brake pads, the brake clearance will gradually increase. When the brake work is started, the brake response time will be longer, which increases the risk of danger. At present, most of the existing clearance adjustment methods are manual adjustment. The methods of manually adjusting the brake clearance mainly include manual screw adjustment, manual threaded plunger adjustment and manual oil injection adjustment. However, these...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/72F16D65/16F16D55/224F16D121/04F16D125/04F16D125/08
CPCF16D65/72F16D65/16F16D55/224F16D2121/04F16D2125/04F16D2125/08
Inventor 王爱国韩飞胡志坚张建立陈铁杨斯媛李星月梁国红卢静肖建秋
Owner BC P INC CHINA NAT PETROLEUM CORP
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