Novel detachable wear-resistant sealing structure

Abstract

The utility model provides a novel detachable wear-resistant sealing structure, and belongs to the field of hydraulic breaking hammers. The problems that under the condition that a cylinder body in a traditional breaking hammer works for a long time, a piston cavity is abraded due to reciprocating motion of a piston, the sealing performance of a sealing structure of the piston cavity becomes poor, and the sealing structure is complex to replace are solved. The novel detachable wear-resistant sealing structure comprises a middle cylinder body with a piston cavity, a composite supporting ring is installed in the piston cavity, an annular groove is formed in the position, located on the left side of the composite supporting ring, of the middle cylinder body, and a wear-resistant sealing gasket is installed in the annular groove. The utility model has the advantage of convenience in disassembly and maintenance.

Description

Technical Field

[0001] The utility model belongs to the field of hydraulic breaker hammers, and particularly relates to a novel detachable wear-resistant sealing structure. Background Art

[0002] A hydraulic breaker is a crushing machine that uses hydraulic oil as a medium and a hydraulic pump as a power source to convert hydraulic energy into mechanical impact energy. Due to its large impact force, the breaker is widely used in mining, road excavation, concrete crushing and other occasions; the middle cylinder is one of the core components of the breaker, and its sealing performance is directly related to the working efficiency and service life of the breaker.

[0003] However, when the cylinder body of a traditional breaker works for a long time, the piston chamber will be worn due to the reciprocating motion of the piston, and the sealing performance of the piston chamber sealing structure will deteriorate. There will also be problems such as complicated replacement of the sealing structure, which will lead to frequent leakage, increased wear and other faults during the use of the breaker, affecting the work efficiency and stability of the equipment; a composite support ring is installed in the piston chamber to support the composite support ring, which is worn and damaged due to the long-term reciprocating motion of the piston, and the integral piston chamber is not convenient for disassembly of the composite support ring, which affects the replacement of the composite support ring. Utility Model Content

[0004] The purpose of the utility model is to provide a novel detachable wear-resistant sealing structure in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a new type of detachable wear-resistant sealing structure, including a middle cylinder body with a piston cavity, characterized in that a composite support ring is installed in the piston cavity, and an annular groove is opened on the left side of the composite support ring in the middle cylinder body, and a wear-resistant sealing pad is installed in the annular groove.

[0006] In the above-mentioned novel rear cylinder structure breaker hammer, the wear-resistant sealing gasket is provided with a first sealing member and a second sealing member.

[0007] Compared with the prior art, the new detachable wear-resistant sealing structure:

[0008] 1. The detachable design allows the wear-resistant sealing gasket and reset support ring to be easily removed and replaced when worn or damaged, reducing maintenance costs and time.

[0009] 2. The detachable wear-resistant sealing pad can reduce the oil leakage caused by abnormal oil seal groove.

[0010] 3. The composite support ring supports the piston and effectively reduces the strain caused by the piston during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional view of the novel detachable wear-resistant sealing structure.

[0012] Figure 2 It is a schematic diagram of the wear-resistant sealing gasket of the novel detachable wear-resistant sealing structure.

[0013] In the figure, 1 is the middle cylinder block; 2 is the piston chamber; 3 is the composite support ring; 4 is the annular groove; 5 is the wear-resistant sealing gasket; 6 is the first seal; 7 is the second seal. Specific embodiments

[0014] The following are specific embodiments of the present invention and in conjunction with the drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0015] As Figure 1 、 Figure 2 shown, the novel detachable wear-resistant sealing structure includes a middle cylinder block 1 having a piston chamber 2, a composite support ring 3 is installed in the piston chamber 2, an annular groove 4 is provided on the left side of the middle cylinder block 1 where the composite support ring 3 is located, and a wear-resistant sealing gasket 5 is installed in the annular groove 4.

[0016] Further details, the wear-resistant sealing gasket 5 is provided with a first seal 6 and a second seal 7. The first seal 6 is a dust seal, and the second seal 7 is a main oil seal. Multiple first seals and second seals can be provided.

[0017] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0018] Although terms such as the middle cylinder block 1, piston chamber 2, composite support ring 3, annular groove 4, wear-resistant sealing gasket 5, first seal 6, and second seal 7 are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more convenient description and explanation of the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A novel detachable wear-resistant sealing structure, including a middle cylinder block (1) with a piston chamber (2), is characterized in that, A composite support ring (3) is installed in the piston chamber (2), and an annular groove (4) is provided on the left side of the middle cylinder block (1) where the composite support ring (3) is located, and a wear-resistant gasket (5) is installed in the annular groove (4).

2. A novel detachable wear-resistant sealing structure according to claim 1, characterized in that, A first seal (6) and a second seal (7) are provided in the wear-resistant gasket (5).

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