An integrated brake cylinder with automatic maintenance of constant clearance and work safety
A brake cylinder and gap technology, applied in hoisting devices, etc., can solve problems such as difficult gap adjustment and complex maintenance, and achieve the effects of improving safety and reliability, reducing maintenance difficulty, and reducing parts types
Active Publication Date: 2018-02-02
北京普世科石油机械新技术有限公司 +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0005] The invention proposes an integrated brake oil cylinder that automatically maintains a constant clearance and works safely, which solves the problems that two different brake calipers are commonly used in hydraulic disc brakes in the prior art, the clearance adjustment is difficult, and the maintenance is complicated.
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] like figure 1 As shown, the integrated brake cylinder with automatic maintenance and constant clearance work safety in the present invention includes a cylinder block 1 with openings at both ends of the left and right ends. The first oil chamber 4 and the second oil chamber 7.
[0028] The opening of the first oil chamber 4 is provided with a first cylinder cover 2, the first cylinder cover 2 and the cylinder body 1 are fixed by bolts, the first oil ch...
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The invention provides a work-and-safety integrated brake cylinder capable of automatically keeping a constant clearance. The brake cylinder comprises a cylinder body which is divided into a first oil cavity and a second oil cavity by a partition plate; a first cylinder cover is arranged on the first oil cavity, and a first piston is arranged in the first oil cavity; the first oil cavity is provided with a first oil port; a second piston is arranged in the second oil cavity; the partition plate is provided with a one-way communication device; the second piston is of a hollow structure with one end open, the open end extends out of the second oil cavity, and a second cylinder cover is arranged at the open end of the second piston; a third oil cavity is formed by the second cylinder cover and the second piston, and a third piston is arranged in the third oil cavity; the third oil cavity is provided with a second oil port; and the third piston and the second piston are connected with an elastic set. According to the work-and-safety integrated brake cylinder capable of automatically keeping the constant clearance, all functions of work braking and safety braking for a hydraulic disk type brake are achieved at the same time, the proper brake clearance can be automatically kept, the number of types of parts of the hydraulic disk type brake is reduced, the repairing difficulty is lowered, and safety and reliability of the brake are improved.
Description
technical field [0001] The invention relates to the technical field of drawwork brake systems for oil drilling rigs and workover rigs, in particular to an integrated brake oil cylinder that automatically maintains constant clearance and works safely. Background technique [0002] In the prior art, hydraulic disc brakes have been widely used as drawwork brake systems for oil drilling rigs and workover rigs. In order to ensure the working brake requirements and brake safety, hydraulic disc brakes generally use two kinds of brake calipers, the normally open working caliper and the normally closed safety caliper, which complement each other. When braking in normal work, the brakes are driven by hydraulic pressure, and in case of hydraulic pressure loss or other emergencies, the safety gear brakes can be driven by compressed springs to ensure braking safety. As one of the main parts of the brake caliper, the oil cylinder provides thrust for the brake caliper, and is also the key...
Claims
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IPC IPC(8): B66D5/28
CPCB66D5/28
Inventor 蒋汉周泉丁伟李福海赵健雷
Owner 北京普世科石油机械新技术有限公司