CN211690508U - Split type hydraulic hammer core - Google Patents
Split type hydraulic hammer core Download PDFInfo
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- CN211690508U CN211690508U CN201921688358.2U CN201921688358U CN211690508U CN 211690508 U CN211690508 U CN 211690508U CN 201921688358 U CN201921688358 U CN 201921688358U CN 211690508 U CN211690508 U CN 211690508U
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- cylinder body
- oil port
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- reversing valve
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000004807 localization Effects 0.000 abstract description 3
- 239000008358 core component Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 99
- 238000010276 construction Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model discloses a split type hydraulic hammer movement, which comprises a cylinder body and a reversing valve arranged on one side of the cylinder body, wherein the cylinder body is provided with an upper cylinder body, a middle cylinder body and a lower cylinder body which are connected from top to bottom, the inner cavity of the upper cylinder body is filled with nitrogen, the inner cavity of the middle cylinder body is provided with an impact piston, the inner cavity of the lower cylinder body is provided with a drill rod which is contacted with the front end of the impact piston, and the drill rod is pushed to realize striking action by the up-and-down movement of the impact piston; a valve core is arranged in the reversing valve, and the up-and-down movement of the impact piston is controlled through the up-and-down movement of the valve core and the stroke adjusting valve. Compared with the prior art, the utility model discloses the machining precision is high, and simple structure has reduced the dismantlement degree of difficulty of integral core simultaneously, alleviates complete machine weight, improves work efficiency, can satisfy the various strict requirements of hydraulic hammer completely, has contributed strength for the localization of hydraulic hammer core component.
Description
Technical Field
The utility model relates to an engineering machine tool technical field, concretely relates to split type hydraulic hammer core.
Background
The hydraulic breaking hammer is a novel hydraulic impact machine developed in the last 60 years, mainly uses a hydraulic excavator or a loader as a power source and a carrier, uses oil pressure as power, and uses piston reciprocating motion to output impact energy to do work outwards. The hydraulic breaking hammer is widely applied to mining, secondary breaking and cleaning of steel ladles and furnace slag in the metallurgical industry; dismantling an equipment foundation; breaking a cement pavement, excavating a foundation and repairing an expressway in highway construction; digging a mountain, tunneling a tunnel and demolishing a road and bridge in railway construction; the method belongs to the fields of house removal, concrete crushing, water-power-gas engineering construction and the like in municipal construction.
The working environment and working property of the hydraulic hammer require high machine core processing precision and high processing difficulty, most of the current domestic hydraulic hammer machine cores depend on import, and the development of the domestic hydraulic hammer industry is severely restricted. At present, a large-tonnage hydraulic hammer mostly adopts an integral machine core structure, the integral hydraulic hammer machine core is complex in structure and high in installation and disassembly difficulty, the weight of the whole machine is greatly increased, and the working efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a split type hydraulic hammer core, it adopts advanced production technology, accurate frock location, strict technological requirement, can satisfy the various performance requirements of hydraulic hammer completely.
In order to achieve the above design purpose, the utility model adopts the following technical scheme: a split type hydraulic hammer core comprises a cylinder body and a reversing valve arranged on one side of the cylinder body, wherein the cylinder body is provided with an upper cylinder body, a middle cylinder body and a lower cylinder body which are connected from top to bottom; a valve core is arranged in the reversing valve, and the up-and-down movement of the impact piston is controlled by the up-and-down movement of the valve core and the stroke adjusting valve;
the hydraulic control system is characterized by further comprising an oil pump and an oil return cavity, wherein one path of the oil pump is connected with a first oil port of a reversing valve and a second oil port of the reversing valve respectively, the other path of the oil pump is connected with a first oil port of a middle cylinder body, the third path of the oil pump is connected with an energy accumulator and a third oil port of the reversing valve in sequence, a fourth oil port of the reversing valve is connected with a second oil port of the middle cylinder body, one path of the oil pump is led out between the fourth oil port of the reversing valve and the second oil port of the middle cylinder body to be connected with a stroke regulating valve, the stroke regulating valve is connected with the third oil port of the middle cylinder body, a fifth oil port of;
the third oil port of the reversing valve and the fourth oil port of the reversing valve are connected with the lower valve core cavity, the second oil port of the reversing valve and the sixth oil port of the reversing valve are connected with the upper valve core cavity, the fifth oil port of the middle cylinder body is connected with the upper piston cavity, and the first oil port, the second oil port, the third oil port and the fourth oil port of the middle cylinder body are connected with the lower piston cavity.
When the utility model is in the initial state, the valve core is in the lower position of the reversing valve, the impact piston is in the lower position of the middle cylinder body, and the lower piston cavity and the upper valve core cavity are in the high-pressure state; in the second state, the valve core is positioned at the lower position of the reversing valve, the lower piston cavity is under high pressure, the upper piston cavity is in an oil return state, and the impact piston rises after the oil pump is started; in a third state, after the impact piston rises, the first oil port of the middle cylinder body is communicated with the third oil port of the reversing valve, so that the lower cavity of the valve core is communicated with pressure oil, and the valve core rises because the oil pressure area of the lower cavity is larger than that of the upper cavity; in a fourth state, after the valve core rises, the second oil port of the reversing valve is communicated with the sixth oil port of the reversing valve, the upper piston cavity is communicated with pressure oil through the fifth oil port of the middle cylinder body, and the oil pressure area of the upper piston cavity is larger than that of the lower cavity to strike the drill rod downwards;
the fourth oil port is provided with a stroke adjusting valve between the fourth oil port and the middle cylinder body, and the stroke of the impact piston moving up and down is adjusted; the fifth oil port of the reversing valve and the fourth oil port of the middle cylinder body are both connected with the oil return cavity and are used for playing a role in circulating oil return in the work of the whole hydraulic system of the middle cylinder body and the reversing valve; the energy accumulator can provide buffering for the hydraulic system, and plays a role in protecting the hydraulic system; the upper cylinder body inner cavity is filled with nitrogen to be matched with the energy accumulator for use, so that the buffer is provided, and energy and pressure can be provided for normal operation of an oil way.
The utility model discloses beneficial effect: on the basis of not changing the overall design layout and the use performance of a hydraulic hammer core, the reversing valve assembly and the energy accumulator assembly are separated from the upper surface of a hydraulic hammer middle cylinder body, and the assembled reversing valve assembly and the assembled energy accumulator assembly are installed on the machined middle cylinder body through bolt connection by improving advanced production technology, accurate tool positioning and strict process requirements. The split type hydraulic hammer core can meet various requirements of a hydraulic hammer, reduces the disassembly difficulty of the core, reduces the weight of the whole machine, improves the working efficiency, and makes a contribution to the localization of core parts of the hydraulic hammer.
Compared with the prior art, the utility model discloses the machining precision is high, and simple structure has reduced the dismantlement degree of difficulty of integral core simultaneously, alleviates complete machine weight, improves work efficiency, and also greatly reduced the fault rate of product simultaneously can satisfy the various strict requirements of hydraulic hammer completely, has contributed strength for the localization of hydraulic hammer core component.
Drawings
The structure and features of the present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the valve spool of fig. 1 in a down position, with the impulse piston raised.
Fig. 3 is a schematic view showing a state in which the valve element of fig. 1 is raised and the impact piston is raised.
Fig. 4 is a schematic view of the valve element of fig. 1 in a state in which the impact piston is moved downward.
In the accompanying drawings 1-4, 1 is an oil pump, 2 is a reversing valve, 3 is a valve core, 4 is a fourth oil port of the reversing valve, 5 is a third oil port of the reversing valve, 6 is an energy accumulator, 7 is an oil return cavity, 8 is a first oil port of the reversing valve, 9 is a second oil port of the reversing valve, 10 is a fifth oil port of the reversing valve, 11 is nitrogen, 12 is an upper cylinder body, 13 is an impact piston, 14 is an upper piston cavity, 15 is a middle cylinder body, 16 is a lower piston cavity, 18 is a drill rod, 19 is a lower cylinder body, 20 is a stroke adjusting valve, 21 is a sixth oil port of the reversing valve, 22 is a fourth oil port of the middle cylinder body, 23 is a third oil port of the middle cylinder body, 24 is a second oil port of the middle cylinder body, 25 is a first oil port of the middle cylinder body, and 26 is a fifth oil port.
Detailed Description
Fig. 1-4 show an embodiment of the present invention, which discloses a split hydraulic hammer movement, comprising a cylinder and a reversing valve 2 disposed on one side of the cylinder, wherein the cylinder has an upper cylinder 12, a middle cylinder 15 and a lower cylinder 19 connected from top to bottom, the inner cavity of the upper cylinder 12 is filled with nitrogen 11, the inner cavity of the middle cylinder 15 is provided with an impact piston 13, the inner cavity of the lower cylinder 19 is provided with a drill rod 18 contacting with the front end of the impact piston 13, and the drill rod 18 is pushed to realize striking action by the up-and-down movement of the impact piston 13; a valve core 3 is arranged in the reversing valve 2, and the valve core 3 moves up and down and a stroke regulating valve 20 controls the impact piston 13 to move up and down;
the oil pump 1 is respectively connected with a first oil port 8 of a reversing valve and a second oil port 9 of the reversing valve through one path of an oil pipe, the other path of the oil pump is connected with a first oil port 25 of a middle cylinder body, a third path of the oil pump is sequentially connected with an energy accumulator 6 and a third oil port 5 of the reversing valve, a fourth oil port 4 of the reversing valve is connected with a second oil port 23 of the middle cylinder body, one path of the oil port is led out between the fourth oil port 4 of the reversing valve and the second oil port 23 of the middle cylinder body to be connected with a stroke regulating valve 20, the stroke regulating valve 20 is connected with a third oil port 24 of the middle cylinder body, a fifth oil port 10 of the reversing valve and a fourth oil port 22 of the middle cylinder body are both connected with the oil return;
the third oil port 5 and the fourth oil port 4 of the reversing valve are connected with the lower valve core cavity, the second oil port 9 and the sixth oil port 21 of the reversing valve are connected with the upper valve core cavity, the fifth oil port 26 of the middle cylinder body is connected with the upper piston cavity 14, and the first oil port 25, the second oil port 23, the third oil port 25 and the fourth oil port 22 of the middle cylinder body are connected with the lower piston cavity.
The working state of the embodiment of the present invention is explained with reference to the accompanying drawings:
referring to the attached figure 1, when the utility model is in the initial state, the valve core is at the lower position of the reversing valve, the impact piston is at the lower position of the middle cylinder body, and the lower piston cavity and the upper valve core cavity are in the high pressure state;
in fig. 2, in the second state, the valve core is at the lower position of the reversing valve, the lower piston cavity is at high pressure, the upper piston cavity is at the oil return state, and the impact piston rises after the oil pump is started;
in fig. 3, in the third state, after the impact piston rises, the first oil port of the middle cylinder body is communicated with the third oil port of the reversing valve, so that the lower cavity of the valve core is communicated with pressure oil, and the valve core rises because the oil pressure area of the lower cavity is larger than that of the upper cavity;
in the fourth state shown in fig. 4, after the valve core is lifted, the second oil port of the reversing valve is communicated with the sixth oil port of the reversing valve, the upper piston cavity is communicated with pressure oil through the fifth oil port of the middle cylinder body, and the oil pressure area of the upper piston cavity is larger than that of the lower cavity to strike the drill rod downwards.
The fourth oil port is provided with a stroke adjusting valve between the fourth oil port and the middle cylinder body, and the stroke of the impact piston moving up and down is adjusted; the fifth oil port of the reversing valve and the fourth oil port of the middle cylinder body are both connected with the oil return cavity and are used for playing a role in circulating oil return in the work of the whole hydraulic system of the middle cylinder body and the reversing valve; the energy accumulator can provide buffering for the hydraulic system, and plays a role in protecting the hydraulic system; the upper cylinder body inner cavity is filled with nitrogen to be matched with the energy accumulator for use, so that the buffer is provided, and energy and pressure can be provided for normal operation of an oil way.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a split type hydraulic hammer core, includes a cylinder body and the switching-over valve of locating cylinder body one side, its characterized in that: the cylinder body is provided with an upper cylinder body, a middle cylinder body and a lower cylinder body which are connected from top to bottom, the inner cavity of the upper cylinder body is filled with nitrogen, the inner cavity of the middle cylinder body is provided with an impact piston, the inner cavity of the lower cylinder body is provided with a drill rod which is in contact with the front end of the impact piston, and the drill rod is pushed to realize striking action by the up-and-down movement of the impact piston; a valve core is arranged in the reversing valve, and the up-and-down movement of the impact piston is controlled by the up-and-down movement of the valve core and the stroke adjusting valve;
the hydraulic control system is characterized by further comprising an oil pump and an oil return cavity, wherein one path of the oil pump is connected with a first oil port of a reversing valve and a second oil port of the reversing valve respectively, the other path of the oil pump is connected with a first oil port of a middle cylinder body, the third path of the oil pump is connected with an energy accumulator and a third oil port of the reversing valve in sequence, a fourth oil port of the reversing valve is connected with a second oil port of the middle cylinder body, one path of the oil pump is led out between the fourth oil port of the reversing valve and the second oil port of the middle cylinder body to be connected with a stroke regulating valve, the stroke regulating valve is connected with the third oil port of the middle cylinder body, a fifth oil port of;
the third oil port of the reversing valve and the fourth oil port of the reversing valve are connected with the lower valve core cavity, the second oil port of the reversing valve and the sixth oil port of the reversing valve are connected with the upper valve core cavity, the fifth oil port of the middle cylinder body is connected with the upper piston cavity, and the first oil port, the second oil port, the third oil port and the fourth oil port of the middle cylinder body are connected with the lower piston cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921688358.2U CN211690508U (en) | 2019-10-10 | 2019-10-10 | Split type hydraulic hammer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921688358.2U CN211690508U (en) | 2019-10-10 | 2019-10-10 | Split type hydraulic hammer core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211690508U true CN211690508U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921688358.2U Expired - Fee Related CN211690508U (en) | 2019-10-10 | 2019-10-10 | Split type hydraulic hammer core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211690508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267505A (en) * | 2020-11-11 | 2021-01-26 | 北京三一智造科技有限公司 | Continuous wall grab bucket device and control method thereof |
-
2019
- 2019-10-10 CN CN201921688358.2U patent/CN211690508U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267505A (en) * | 2020-11-11 | 2021-01-26 | 北京三一智造科技有限公司 | Continuous wall grab bucket device and control method thereof |
| CN112267505B (en) * | 2020-11-11 | 2024-05-14 | 北京三一智造科技有限公司 | Continuous wall grab bucket device and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |