Oil path optimization structure of breaking hammer

Abstract

The utility model provides an oil way optimization structure of a breaking hammer, and belongs to the field of breaking hammers. The problems that the stability of a hydraulic system is reduced, the failure rate of a breaking hammer is high and the working efficiency is affected due to the fact that a traditional oil return system easily causes fluctuation of increased oil return pressure are solved. The oil way optimization structure of the breaking hammer comprises a rear cylinder body, an oil inlet way is arranged on the rear cylinder body, an oil return way is arranged on one side of the oil inlet way, an energy accumulator is installed on the rear cylinder body, a connecting pipeline is arranged at the bottom of the energy accumulator, an oil return pipeline used for oil return is arranged on the rear cylinder body in an inward extending mode, and the oil return pipeline is communicated with the connecting pipeline. The hydraulic breaking hammer has the advantages of reducing the failure rate of the breaking hammer and improving the working efficiency of the hydraulic breaking hammer.

Description

Technical Field

[0001] The utility model belongs to the field of breaker hammers, and relates to an oil circuit of a breaker hammer, in particular to an optimized structure of the oil circuit of a breaker hammer. Background Art

[0002] A breaker hammer, abbreviated as "breaker hammer" or "breaker", is installed at the position of the bucket or loading bucket of an excavator or a loader, and is used to break stones, rocks, etc. The working principle of the breaker hammer is: using the pressure oil output by the hydraulic pump of the excavator or loader as power, and controlling the reciprocating movement of the piston through a flow distribution valve.

[0003] In the existing breaker hammers, the oil return system is another important part of the oil circuit of the breaker hammer. When the hydraulic oil completes its work in the high-pressure oil circuit, it will flow back to the fuel tank through the oil return pipeline for reuse. This easily causes fluctuations in the oil return pressure, reduces the stability of the hydraulic system, increases the failure rate of the breaker hammer, and affects the working efficiency. Summary of the Invention

[0004] The purpose of the utility model is to provide a stable optimized structure of the oil circuit of a breaker hammer for the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: An optimized structure of the oil circuit of a breaker hammer includes a rear cylinder block. An oil inlet circuit is arranged on the rear cylinder block, and an oil return circuit is arranged on one side of the oil inlet circuit. It is characterized in that an accumulator is installed on the rear cylinder block, a connecting pipeline is arranged at the bottom of the accumulator, and an oil return pipeline for oil return extends inward from the rear cylinder block, and the oil return pipeline is communicated with the connecting pipeline.

[0006] In the above optimized structure of the oil circuit of a breaker hammer, a connecting hole for connection is opened on the surface of the rear cylinder block where the oil return pipe is located, and a sealing gasket for sealing is arranged at the orifice of the connecting hole.

[0007] Compared with the prior art, in the optimized structure of the oil circuit of this breaker hammer, by connecting the accumulator with the oil return pipe of the rear cylinder block, the stability of the breaker hammer and the hydraulic system of the excavator is increased, the fluctuation of the oil return pressure is reduced, the failure rate of the breaker hammer is decreased, and the working efficiency of the hydraulic breaker hammer is improved. Brief Description of the Drawings

[0008] Figure 1 is a three-dimensional structure schematic diagram of the optimized structure of the oil circuit of this breaker hammer.

[0009] Figure 2 is a partial cross-sectional view of the optimized structure of the oil circuit of this breaker hammer.

[0010] In the figure, 1 is the rear cylinder block; 2 is the oil inlet passage; 3 is the oil return passage; 4 is the oil return pipe; 5 is the accumulator; 6 is the connecting pipe; 7 is the connection hole; 8 is the gasket. Detailed implementation mode

[0011] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0012] As Figure 1 , Figure 2 shown, the optimized structure of the oil circuit of this breaker includes a rear cylinder block 1, an oil inlet passage 2 is arranged on the rear cylinder block 1, an oil return passage 3 is arranged on one side of the oil inlet passage 2, an accumulator 5 is installed on the rear cylinder block 1, and the accumulator 5 is used to stabilize the oil return pressure. A connecting pipe 6 is arranged at the bottom of the accumulator 5. An oil return pipe 4 for oil return is arranged extending inward from the rear cylinder block 1, and the oil return pipe 4 is communicated with the connecting pipe 6. Through the connection between the accumulator 5 and the oil return pipe 4, the fluctuation of the oil return pressure of the oil return pipe 4 is reduced.

[0013] Further elaborating, a connection hole 7 for connection is opened on the surface of the rear cylinder block 1 where the oil return pipe is located, and a gasket 8 for sealing is arranged at the orifice of the connection hole 7 to prevent leakage during the oil return process through the gasket 8.

[0014] The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0015] Although terms such as rear cylinder block 1, oil inlet passage 2, oil return passage 3, oil return pipe 4, accumulator 5, connecting pipe 6, connection hole 7, gasket 8, etc. are used more in this article, the possibility of using other terms is not excluded. Using these terms is only for more conveniently describing and explaining the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An optimized structure of the oil circuit of a breaker, including a rear cylinder block (1), an oil inlet circuit (2) is arranged on the rear cylinder block (1), and an oil return circuit (3) is arranged on one side of the oil inlet circuit (2), characterized in that, An accumulator (5) is installed on the rear cylinder block (1) described above. A connecting pipe (6) is provided at the bottom of the accumulator (5). An oil return pipe (4) for returning oil extends inwardly from the rear cylinder block (1), and the oil return pipe (4) is communicated with the connecting pipe (6).

2. The optimized structure of the hydraulic circuit of a breaker according to claim 1, characterized in that, A connection hole (7) for connection is provided on the surface of the rear cylinder block (1) where the oil return pipe is located, and a gasket (8) for sealing is provided at the orifice of the connection hole (7).

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