CN212427313U - Long service life's hydraulic breaking hammer - Google Patents
Long service life's hydraulic breaking hammer Download PDFInfo
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- CN212427313U CN212427313U CN202020706995.4U CN202020706995U CN212427313U CN 212427313 U CN212427313 U CN 212427313U CN 202020706995 U CN202020706995 U CN 202020706995U CN 212427313 U CN212427313 U CN 212427313U
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- cylinder body
- piston
- service life
- drill rod
- long service
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Abstract
The utility model relates to a hydraulic breaking hammer with long service life, which comprises a rear shell, a cylinder body and a front shell which are connected in sequence from top to bottom; the piston is arranged in the cylinder body, the drill rod is arranged in the front shell and is positioned below the piston, the piston can drive the drill rod to move downwards when moving downwards, and a cylinder body bushing is arranged between the cylinder body and the piston; the beneficial effects are that: the cylinder body lining is added between the cylinder body and the piston, so that the cylinder body can be continuously used only by replacing the lining and the piston when serious strain occurs, the cylinder body does not need to be replaced, the service life of the breaking hammer can be prolonged, and the after-sale cost is saved.
Description
Technical Field
The utility model relates to a hydraulic breaking hammer, in particular to long service life's hydraulic breaking hammer.
Background
The hydraulic breaking hammer in the prior art comprises a rear shell, a cylinder body and a front shell which are sequentially connected from top to bottom, wherein the rear shell, the cylinder body and the front shell are fixedly connected through bolts; the piston is arranged in the cylinder body, the drill rod is arranged in the front shell and located below the piston, and the piston can drive the drill rod to move downwards when moving downwards.
The piston is directly installed in the cylinder body, when the piston is used in a severe working environment or when manual operation is improper, the situation that the cylinder body and the piston are pulled can occur, and the piston can be continuously used after a new cylinder body and the piston need to be replaced when the piston is serious.
The rear shell, the cylinder body and the front shell are fixedly connected through bolts, the through bolts need to sequentially penetrate through the rear shell, the cylinder body and the front shell from top to bottom, and the through bolts are large in length and easy to break.
In the prior art, the rear shell body below is also provided with an oil seal fixer, the oil seal fixer is sleeved on the ejector rod of the piston, the rear shell body and the oil seal fixer are split, the coaxiality of the rear shell body and the oil seal fixer is poor, the sealing performance is low, and the oil leakage problem is caused.
In the prior art, a circular bushing and a front end bushing are arranged between the drill rod and the front shell, and the circular bushing is arranged above the front end bushing, so that the assembly cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the not enough of above-mentioned prior art existence, provide a long service life's hydraulic crushing hammer.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a long-service-life hydraulic breaking hammer comprises a rear shell, a cylinder body and a front shell which are sequentially connected from top to bottom; the piston is arranged in the cylinder body, the drill rod is arranged in the front shell and located below the piston, the piston can drive the drill rod to move downwards when moving downwards, and a cylinder body bushing is arranged between the cylinder body and the piston.
The utility model has the advantages that: the cylinder body lining is added between the cylinder body and the piston, so that the cylinder body lining and the piston can be continuously used only by being replaced when serious strain occurs, the cylinder body does not need to be replaced, the service life of the breaking hammer can be prolonged, and the after-sale cost is saved.
Further, the cylinder body and the front housing are of an integral structure.
The beneficial effect of adopting the further technical scheme is that: the number of parts is reduced, larger shearing force is avoided at the contact surface of the cylinder body and the front shell, and the risk of fracture of the through bolt is reduced;
in the prior art, in order to facilitate the installation of a lower oil seal, a cylinder body and a front shell are made into a split structure, and the assembly of the cylinder body and the front shell inevitably has assembly errors;
the utility model discloses do the integral type structure with cylinder body and procapsid, pack into the cylinder body bush with the lower part oil blanket earlier in, pack into cylinder body and procapsid with the cylinder body bush again in, reduced assembly error, reduce spare part quantity, the cost is reduced.
Further, the rear housing and the cylinder body are connected through a through bolt, and the bottom of the through bolt is arranged at the upper part of the cylinder body.
The beneficial effect of adopting the further technical scheme is that: the length of the through bolt is greatly reduced, the processing cost of the through bolt can be reduced, and meanwhile, the risk of fracture of the through bolt is reduced.
Further, the rear shell and the oil seal fixer are of an integrated structure, and the oil seal fixer is arranged at the upper end of the cylinder body bushing.
The beneficial effect of adopting the further technical scheme is that: guarantee the coaxial setting of oil blanket fixer and back casing, can reduce the probability that the piston damaged and strain, reduce the fault rate of quartering hammer, and sealed more stable.
Further, the drill rod sleeve is arranged between the drill rod and the front shell and is in clearance fit with the front shell.
The beneficial effect of adopting the further technical scheme is that: the front end bushing and the round bushing are of an integrated structure in the prior art, and are in clearance fit with the front shell, so that the assembly cost is reduced, and the maintenance is convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the cylinder body of the present invention;
FIG. 3 is a schematic structural view of the cylinder liner of the present invention;
FIG. 4 is a schematic structural view of a drill rod bushing according to the present invention;
fig. 5 is a schematic structural view of a through bolt of the present invention;
fig. 6 is a schematic structural view of the middle and rear housings and the oil seal holder of the present invention;
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 6, a hydraulic breaking hammer with a long service life includes a rear housing 1, a cylinder body 2-1 and a front housing 2-2 connected in sequence from top to bottom; the drill rod mechanism further comprises a piston 3 and a drill rod 5, the piston 3 is installed in the cylinder body 2-1, the drill rod 5 is installed in the front shell 2-2 and located below the piston 3, the drill rod 5 can be driven to move downwards when the piston 3 moves downwards, and a cylinder body lining 4 is arranged between the cylinder body 2-1 and the piston 3. The cylinder liner 4 is additionally arranged between the cylinder 2-1 and the piston 3, so that the cylinder liner 4 and the piston 3 can be continuously used only by replacing when serious strain occurs, the cylinder 2-1 is not required to be replaced, the service life of the breaking hammer can be prolonged, and the after-sale cost is saved.
The cylinder block 2-1 and the front housing 2-2 are of an integral structure. The number of parts is reduced, large shearing force is prevented from being generated on the contact surface of the cylinder body 2-1 and the front shell body 2-2, and the risk of fracture of the through bolt 7 is reduced.
The rear shell 1 and the cylinder body 2-1 are connected through a through bolt 7, and the bottom of the through bolt 7 is arranged at the upper part of the cylinder body 2-1. The length of the through-bolt 7 is greatly reduced, enabling the machining costs of the through-bolt 7 to be reduced, while reducing the risk of breakage of the through-bolt 7.
The rear shell 1 and the oil seal fixer 8 are of an integrated structure, and the oil seal fixer 8 is arranged at the upper end of the cylinder body bush 4. The oil seal fixer and the rear shell 1 are coaxially arranged, and the sealing performance is good.
A drill rod bush 6 is also included, the drill rod bush 6 being provided between the drill rod 5 and the front housing 2-2 in a clearance fit with the front housing 2-2. The drill rod bush 6 is equivalent to the prior art that a round bush and a front end bush are made into an integral structure, so that the number of parts is saved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (4)
1. A hydraulic breaking hammer with long service life is characterized by comprising a rear shell, a cylinder body and a front shell which are sequentially connected from top to bottom; the piston is arranged in the cylinder body, the drill rod is arranged in the front shell and is positioned below the piston, the piston can drive the drill rod to move downwards when moving downwards, and a cylinder body bushing is arranged between the cylinder body and the piston; the cylinder body and the front housing are of an integral structure.
2. The hydraulic demolition hammer with a long service life according to claim 1 wherein the rear housing and the cylinder are connected by a through bolt, the bottom of which is located at the upper part of the cylinder.
3. The hydraulic demolition hammer with a long service life according to claim 1 or 2, characterized in that the rear housing and the oil seal holder are of an integral structure, the oil seal holder being provided at the upper end of the cylinder liner.
4. A long-life hydraulic demolition hammer according to claim 3 further comprising a shank bushing disposed between the shank and the front housing in clearance fit with the front housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020706995.4U CN212427313U (en) | 2020-04-30 | 2020-04-30 | Long service life's hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020706995.4U CN212427313U (en) | 2020-04-30 | 2020-04-30 | Long service life's hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212427313U true CN212427313U (en) | 2021-01-29 |
Family
ID=74288560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020706995.4U Active CN212427313U (en) | 2020-04-30 | 2020-04-30 | Long service life's hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212427313U (en) |
-
2020
- 2020-04-30 CN CN202020706995.4U patent/CN212427313U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |