CN210850116U - Valveless reversing hydraulic pickaxe - Google Patents
Valveless reversing hydraulic pickaxe Download PDFInfo
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- CN210850116U CN210850116U CN201921678610.1U CN201921678610U CN210850116U CN 210850116 U CN210850116 U CN 210850116U CN 201921678610 U CN201921678610 U CN 201921678610U CN 210850116 U CN210850116 U CN 210850116U
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- oil cavity
- oil
- flow cylinder
- top column
- switching
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Abstract
The utility model discloses a valveless switching-over type hydraulic pressure pick, the outer pick body including the hydraulic pressure pick, the inside flow cylinder that is equipped with of outer pick body, the strike piston is equipped with to the flow cylinder hole, big fore-set is equipped with to flow cylinder outside aperture liam, the switching-over cover is equipped with on flow cylinder right side, the switching-over cover hole is furnished with the switching-over case, be equipped with the little fore-set that is used for promoting the switching-over case and removes in the switching-over cover outside aperture. Compared with the prior art, the utility model discloses a hydraulic pressure pickaxe structure of this kind of integrated form realizes the function of valveless switching-over with the help of the thrust of big or small piston, has alleviateed complete machine weight, the effectual work efficiency who improves the hydraulic pressure pickaxe.
Description
Technical Field
The utility model relates to a hydraulic tool technical field, concretely relates to valveless switching-over type hydraulic pressure pickaxe.
Background
The hand-held hydraulic breaker is a small hydraulic breaker and comprises a heat shield assembly, a screw rod assembly, a shock absorption seat assembly, a machine core assembly, a small pick body assembly, a pick drill rod and other parts. Hydraulic oil is provided by a hydraulic pump station, enters the cylinder body through a high-pressure hose via a switch valve and a flow distribution disc, and alternately distributes flow with a hydraulic control reversing valve under the action of differential motion, so that the piston generates intermittent impact motion, and acts on a pickaxe drill rod through the piston to realize preset operation.
The reversing valve assembly of the traditional hand-held hydraulic pickaxe is arranged on the outer side of the pickaxe body, and the hand-held hydraulic pickaxe is a hydraulic crushing tool directly operated by people, so that the weight of the machine body of the hand-held hydraulic pickaxe can be reduced as much as possible under the condition of high working efficiency. The traditional external reversing valve increases the weight of the machine body, has high failure rate and influences the working efficiency.
Disclosure of Invention
In order to solve the above-mentioned defect, the utility model aims at providing a valveless switching-over type hydraulic pressure pickaxe, the effectual complete machine weight that has alleviateed has the fault rate that reduces, advantage that work efficiency is high.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a valveless reversing hydraulic pickaxe comprises an outer pickaxe body of the hydraulic pickaxe, wherein a flow cylinder is arranged in the outer pickaxe body, a striking piston is arranged in an inner hole of the flow cylinder, a large jacking column is arranged in a small hole in the outer side of the flow cylinder, a reversing sleeve is arranged on the right side of the flow cylinder, a reversing valve core is arranged in the inner hole of the reversing sleeve, and a small jacking column used for pushing the reversing valve core to move is arranged in a small hole in the outer side of the reversing sleeve; the reversing sleeve is internally provided with a first oil cavity connected with a high-pressure oil way near the right side of the small top column, the first oil cavity is acted by high-pressure oil to push the small top column to move leftwards, a second oil cavity near the left side of the small top column is communicated with the oil way, the reversing valve core is moved leftwards by means of the thrust of the small top column, the high-pressure oil way pushes the striking piston to perform striking motion, a third oil cavity connected with the high-pressure oil way and a fourth oil cavity connected with the third oil cavity are respectively arranged inside a flow cylinder near the striking piston, the fourth oil cavity transmits the high-pressure oil to a fifth oil cavity arranged at the left side of the large top column, the high-pressure oil in the fifth oil cavity pushes the large top column to move rightwards, and the reversing valve core moves rightwards under the thrust of the large top column to enable the striking piston to move.
The utility model has the advantages that: the large jacking column and the small jacking column are applied with force through the high-pressure oil way, and then the valveless reversing function is realized by means of the thrust of the large jacking column and the thrust of the small jacking column, so that the working efficiency of the hydraulic pickaxe is effectively improved; traditional external switching-over valve has increased fuselage weight, and the fault rate is high, influences work efficiency, the utility model discloses a with the switching-over valve integration in the outer pick body of hydraulic pressure pick, alleviateed complete machine weight, precision design, rational arrangement have simple structure, characteristics such as work efficiency height.
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.
In the attached figure 1, 1 is a flow cylinder, 2 is a reversing valve core, 3 is a reversing sleeve, 4 is a small top column, 5 is a large top column, 6 is a striking piston, 7 is an outer pickaxe body, 8 is a first oil cavity, 9 is a second oil cavity, 10 is a third oil cavity, 11 is a fourth oil cavity, and 12 is a fifth oil cavity.
Detailed Description
The utility model discloses an embodiment, refer to the attached figure 1 and disclose a valveless reversing type hydraulic pick, including the outer pick body 7 of hydraulic pick, flow cylinder 1 is equipped with to the inside of outer pick body 7, strike piston 6 is equipped with to the hole of flow cylinder 1, big fore-set 5 is installed to the aperture in the outside of flow cylinder 6 in an installation way, flow cylinder 1 right side is equipped with reversing sleeve 3, reversing sleeve 3 hole is furnished with reversing valve core 2, be equipped with in the aperture in the outside of reversing sleeve 2 and be used for promoting reversing valve core 2 to remove little fore-set 4; a first oil cavity 8 connected with a high-pressure oil way is arranged in the reversing sleeve 3 close to the right side of the small top column 4, the first oil cavity 8 is acted by high-pressure oil to push the small top column 4 to move leftwards, a second oil cavity 9 close to the left side of the small top column 4 is communicated with the oil way, the reversing valve core 2 is moved leftwards by means of the thrust of the small top column 4, the high-pressure oil way pushes the striking piston 6 to perform striking motion, a third oil cavity 10 connected with the high-pressure oil way and a fourth oil cavity 11 connected with the third oil cavity 10 are respectively arranged in the flow cylinder 3 close to the striking piston 6, the fourth oil cavity 11 transmits the high-pressure oil to a fifth oil cavity 12 arranged on the left side of the large top column 5, the high-pressure oil in the fifth oil cavity 12 pushes the large top column 5 to move rightwards, and the reversing valve core 2 moves rightwards under the thrust of the large top column 5, so that the striking piston.
The utility model discloses an above-mentioned structure concrete implementation do: high-pressure oil enters from the first oil cavity to push the small top column to move from the left, the second oil cavity is communicated with return oil, the left movement of the reversing valve core is realized by means of the thrust of the small top column, and the high-pressure oil pushes the striking piston to perform impact work; the third oil cavity is always connected with high-pressure oil, the striking piston performs striking work as a result, the third oil cavity is communicated with the fourth oil cavity, the high-pressure oil enters the fourth oil cavity, the fourth oil cavity is connected with the fifth oil cavity, the high-pressure oil enters the fifth oil cavity to apply work to the large jacking column, the large jacking column moves rightwards under the action of the oil pressure, the reversing valve core moves rightwards under the thrust of the large jacking column, and the striking piston moves backwards under the action of the high-pressure oil to realize reciprocating motion. The integrated hydraulic pickaxe structure realizes the function of valveless reversing by means of the thrust of the large piston and the small piston, reduces the weight of the whole machine and effectively improves the working efficiency of the hydraulic pickaxe.
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 valveless switching-over type hydraulic pressure pick, includes the outer pick body of hydraulic pressure pick, its characterized in that: a flow cylinder is arranged in the outer pickaxe body, a striking piston is arranged in an inner hole of the flow cylinder, a large support pillar is arranged in a small hole on the outer side of the flow cylinder, a reversing sleeve is arranged on the right side of the flow cylinder, a reversing valve core is arranged in the inner hole of the reversing sleeve, and a small support pillar for pushing the reversing valve core to move is arranged in a small hole on the outer side of the reversing sleeve; the reversing sleeve is internally provided with a first oil cavity connected with a high-pressure oil way near the right side of the small top column, the first oil cavity is acted by high-pressure oil to push the small top column to move leftwards, a second oil cavity near the left side of the small top column is communicated with the oil way, the reversing valve core is moved leftwards by means of the thrust of the small top column, the high-pressure oil way pushes the striking piston to perform striking motion, a third oil cavity connected with the high-pressure oil way and a fourth oil cavity connected with the third oil cavity are respectively arranged inside a flow cylinder near the striking piston, the fourth oil cavity transmits the high-pressure oil to a fifth oil cavity arranged at the left side of the large top column, the high-pressure oil in the fifth oil cavity pushes the large top column to move rightwards, and the reversing valve core moves rightwards under the thrust of the large top column to enable the striking piston to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921678610.1U CN210850116U (en) | 2019-10-09 | 2019-10-09 | Valveless reversing hydraulic pickaxe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921678610.1U CN210850116U (en) | 2019-10-09 | 2019-10-09 | Valveless reversing hydraulic pickaxe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210850116U true CN210850116U (en) | 2020-06-26 |
Family
ID=71305198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921678610.1U Active CN210850116U (en) | 2019-10-09 | 2019-10-09 | Valveless reversing hydraulic pickaxe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210850116U (en) |
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2019
- 2019-10-09 CN CN201921678610.1U patent/CN210850116U/en active Active
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