CN-224229137-U - Workover rig brake cylinder convenient for adjusting brake clearance

CN224229137UCN 224229137 UCN224229137 UCN 224229137UCN-224229137-U

Abstract

The utility model belongs to the technical field of oil cylinders, and particularly relates to a well repairing machine brake oil cylinder convenient for adjusting a brake gap, which comprises a cylinder barrel, a cylinder cover, a piston and a piston rod, wherein the piston is arranged in the cylinder barrel and connected with the piston rod; the piston and the piston rod are of an integrated structure, a disc spring set is arranged between the inner cylinder barrel and the piston, and the first connecting ring lug and the second connecting ring lug are respectively connected with a braking mechanism of the workover rig through connecting pieces. The utility model has the advantages that the cylinder barrel with a combined structure is adopted, so that the length of the cylinder barrel can be adjusted in a small-range telescopic way in the running process, and the problem of inconvenient adjustment of a brake clearance in application is solved.

Inventors

WANG HONGYU
WANG JIE
HUANG JIPING
LI FUJIAN

Assignees

鞍山彩盛机械制造有限公司

Dates

Publication Date: 20260512
Application Date: 20250527

Claims (7)

1. The utility model provides a convenient workover rig brake cylinder who adjusts brake clearance, includes cylinder, cylinder cap, piston and piston rod, and the piston setting is in the cylinder, and the piston is connected with the piston rod, and the cylinder cap is connected with the cylinder, its characterized in that: The cylinder barrel is of a combined structure and comprises an inner cylinder barrel and an outer cylinder sleeve, the outer cylinder sleeve is connected with the outer side of the inner cylinder barrel through threads, the outer cylinder sleeve is of a combined structure and comprises an outer cylinder barrel, an ear plate seat, an end sealing plate and a retaining ring, one end of the outer cylinder barrel is connected with the end sealing plate through a screw, and an annular retaining ring is arranged between the ear plate seat and the outer cylinder barrel; The piston and the piston rod are of an integrated structure, a sealing ring is arranged between the periphery of the piston and the inner wall of the inner cylinder barrel, a first guide sleeve is arranged between the inner end of the piston rod and the inner cylinder barrel, a second guide sleeve is arranged between the outer end of the piston rod and the cylinder cover, and a disc spring set is arranged between the inner cylinder barrel and the piston; The outer end of the piston rod is provided with a first connecting ring lug, the outer side of the lug plate seat is provided with a second connecting ring lug, the first connecting ring lug and the second connecting ring lug are respectively connected with a workover rig braking mechanism through a connecting piece, the first connecting ring lug is provided with a hydraulic connector, and the hydraulic connector is communicated with a pressurizing cavity at one side of the piston through an inner runner of the piston rod.
2. The workover rig brake cylinder capable of conveniently adjusting a brake clearance according to claim 1, wherein a lock nut is further arranged on the outer side of the inner cylinder, and the lock nut abuts against the end side of the outer cylinder.
3. The workover rig brake cylinder capable of conveniently adjusting brake clearance according to claim 1, wherein two disc spring groups are arranged, and each disc spring group is formed by overlapping and buckling two pairs of disc springs.
4. The workover rig brake cylinder capable of conveniently adjusting brake clearance according to claim 3, wherein a first ring pad is arranged between two groups of the disc springs, and a second ring pad is arranged at the clearance where the disc springs are buckled.
5. The workover rig brake cylinder capable of conveniently adjusting a brake clearance according to claim 1, wherein a grease nipple is arranged on the lug plate seat, and an outlet of the grease nipple is respectively communicated with gaps on two sides of the check ring through an oil way.
6. The workover rig brake cylinder capable of conveniently adjusting a brake clearance according to claim 1, wherein the lug plate seat is provided with a breathing hole, and the breathing hole is communicated with a space where the disc spring group is located through an opening in the inner cylinder barrel.
7. The workover rig brake cylinder capable of conveniently adjusting a brake clearance according to claim 2, wherein the outer cylinder barrel and the locking nut are respectively provided with an operation hole on the outer circular surface, and the operation holes are matched with a crescent wrench.

Description

Workover rig brake cylinder convenient for adjusting brake clearance Technical Field The utility model belongs to the technical field of oil cylinders, and particularly relates to a workover rig brake oil cylinder with a brake clearance convenient to adjust. Background The workover rig and the tractor hoist are the most basic and main power sources in workover and underground operation construction, and are divided into crawler-type and tire-type two types according to the running structure. Along with the development of mechanical industry, the traditional diesel power workover rig is replaced by the hydraulic environment-friendly energy storage workover rig, and compared with the conventional workover rig, the hydraulic environment-friendly energy storage workover rig has the advantages of energy conservation, high efficiency, simplicity in operation, safety, environment friendliness and convenience in disassembly and assembly. The hydraulic environment-friendly energy storage workover rig adopts a hydraulic system to replace a mechanical system and uses an energy accumulator to recover energy, so that the hydraulic system has very strict requirements on the selection of a sealing system for a main power element oil cylinder, and leakage is easy to occur if the sealing selection is improper or the sealing structure is unreasonable. The utility model patent in China with the application number 201720431487.8 discloses a workover rig oil cylinder, which comprises a cylinder bottom and a cylinder barrel arranged on the cylinder bottom, wherein a sleeve is arranged in the cylinder barrel, a piston is sleeved on the sleeve, a piston rod is connected to the piston, the front end of the cylinder barrel is in threaded connection with a guide sleeve, the front end of the piston rod is matched and sleeved on the inner side of the guide sleeve, the piston divides the cylinder barrel into a first rodless cavity, a second rodless cavity and a rod cavity, and two sealing points are arranged between the first rodless cavity, the second rodless cavity and the rod cavity for sealing. The existing well repairing machine braking mechanism has no adjusting function in the gap, when the distance between two connecting ring lugs of the braking oil cylinder needs to be adjusted, the adjustment can only be performed after one end of the oil cylinder is loosened and completely detached, and therefore the situation that the use is inconvenient exists in the operation and application of the well repairing machine and further improvement is needed. Disclosure of utility model The utility model aims to provide a workover rig brake cylinder with a convenient brake clearance adjustment, which overcomes the defects of the prior art, adopts a cylinder barrel with a combined structure, enables the length of the cylinder barrel to be telescopically adjusted in a small range in the running process, enables the cylinder barrel to adapt to the brake clearance change of a workover rig brake mechanism, and solves the problem of inconvenient adjustment and use of the brake clearance in application. In order to achieve the above purpose, the present utility model is realized by the following technical scheme: The well workover rig brake oil cylinder comprises a cylinder barrel, a cylinder cover, a piston and a piston rod, wherein the piston is arranged in the cylinder barrel, the piston is connected with the piston rod, the cylinder cover is connected with the cylinder barrel, the cylinder barrel is of a combined structure and comprises an inner cylinder barrel and an outer cylinder sleeve, the outer cylinder sleeve is connected with the outer side of the inner cylinder barrel through threads, the outer cylinder sleeve is of a combined structure and comprises an outer cylinder barrel, an ear plate seat, an end sealing plate and a retaining ring, one end of the outer cylinder barrel is connected with the end sealing plate through a screw, an annular retaining ring is arranged between the ear plate seat and the outer cylinder barrel, the piston and the piston rod are of an integrated structure, a sealing ring is arranged between the periphery of the piston and the inner wall of the inner cylinder barrel, a guide sleeve I is arranged between the inner end of the piston rod and the inner cylinder barrel, a disc spring group is arranged between the outer end of the piston rod and the cylinder cover, a connecting ring lug I is arranged on the outer side of the ear plate seat, the connecting ring lug I and the connecting ring lug I are respectively connected with a well workover rig brake mechanism through connecting pieces, a hydraulic joint is arranged on the connecting ring I, and the piston is communicated with a pressurizing cavity on one side of the piston rod through a pressurizing channel. Further, a lock nut is further arranged on the outer side of the inner cylinder barrel, and the lock nut abuts against the end side of the outer cylinder barr