CN218320496U - Welding type oil pump assembly of horizontal jack - Google Patents
Welding type oil pump assembly of horizontal jack Download PDFInfo
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- CN218320496U CN218320496U CN202222951008.9U CN202222951008U CN218320496U CN 218320496 U CN218320496 U CN 218320496U CN 202222951008 U CN202222951008 U CN 202222951008U CN 218320496 U CN218320496 U CN 218320496U
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- oil
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- steel base
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Abstract
The utility model discloses a welding type oil pump component of a horizontal jack, which is characterized in that the oil pump component comprises an oil supply valve and an overflow valve which are detachably arranged on a low alloy steel base and are convenient to install and maintain, a double high pressure structure arranged in the oil supply valve and a small oil cylinder which is arranged on the low alloy steel base and is used for driving a piston to perform jacking work; and a pre-deformed reaming hole is formed at one end of the oil cylinder connected with the low alloy steel base. The utility model discloses a be equipped with the reaming of predeformation at hydro-cylinder and low alloy steel base fixed connection one end for offset the deformation that the hydro-cylinder produced when welding, thereby avoid leading to blocking the piston because of hydro-cylinder bottom is out of shape, lead to the piston can't remove on the earth.
Description
Technical Field
The utility model relates to an oil pump assembly specifically indicates a welding formula oil pump subassembly of horizontal jack.
Background
In the prior art, the oil cylinder of the jack and the base are basically connected in two ways, namely, through threaded connection and welding connection; the threaded connection has the problems of low connection strength, poor sealing performance and easy oil leakage in use, so that the quality of a product is affected, and certain potential safety hazards exist in use; adopt welded connection mode joint strength high, the leakproofness is good, but can lead to the hydro-cylinder welding department to produce certain deformation because expend with heat and contract with cold and welding deformation's reason when the welding, lead to the hydro-cylinder hole to produce certain deformation, there is the probability of dwindling in the aperture, in case produce deformation then can lead to the piston to block, can't remove problem emergence to the end, cause certain influence to the quality of product. Therefore, the welding type oil pump assembly of the horizontal jack is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a welding formula oil pump subassembly of horizontal jack in order to solve above problem.
In order to achieve the above object, the present invention provides a welding type oil pump assembly for a horizontal jack, which comprises a low alloy steel base, an oil cylinder part installed on the low alloy steel base, and an oil pump part installed on the low alloy steel base; the oil cylinder component comprises a shell arranged on the low alloy steel base, an oil cylinder arranged on the low alloy steel base and positioned in the shell and connected with the shell, a piston arranged in the oil cylinder in a sliding manner and a piston rod arranged on the piston, and an oil cavity is formed between the shell and the oil cylinder; the oil pump component comprises an oil supply valve and an overflow valve which are detachably arranged on a low alloy steel base and are convenient to install and maintain, a double high-pressure structure arranged in the oil supply valve and a small oil cylinder which is arranged on the low alloy steel base and is used for driving a piston to lift up; one end of the oil cylinder connected with the low alloy steel base is provided with a pre-deformed reaming hole.
Preferably, the reaming hole is a taper hole with a large outer part and a small inner part, the enlarging size of the reaming hole is 0.1-0.5 mm, and the reaming length is 10-16 mm.
Further preferably, the oil pump part further comprises a throttle valve and an oil return valve which are arranged on the low alloy steel base; the low alloy steel base is provided with a high-low pressure hole for installing an oil supply valve, and the low alloy steel base is provided with an oil suction oil way for communicating the high-low pressure hole with the oil cavity, a pressurizing oil way for communicating the high-low pressure hole with the small oil cylinder, an oil supply oil way for communicating the high-low pressure hole with the oil cylinder, and an oil return oil way for communicating the oil cylinder with the oil cavity.
Further preferably, the throttle valve and the oil return valve are mounted on the low-alloy steel base and communicated with the oil return path.
Preferably, the high-low pressure hole is internally provided with a low-pressure oil suction valve, the high-low pressure hole and the oil supply oil way are respectively provided with a double high-pressure structure, and the double high-pressure structure comprises a high-pressure one-way valve A arranged in the high-low pressure hole and a high-pressure one-way valve B arranged on the oil supply oil way; and the high-pressure hole and the low-pressure hole are also provided with fixing screws for fixing the positions of the high-pressure one-way valve A and the low-pressure oil suction valve.
The pre-deformed reaming hole is arranged at one end of the oil cylinder fixedly connected with the low alloy steel base and is used for offsetting the deformation of the oil cylinder caused by the shrinkage of a welding machine at the welding position of the oil cylinder and the base, thereby avoiding the problem that the piston cannot move to the bottom due to the piston being clamped because of the deformation of the bottom of the oil cylinder;
by installing the oil supply valve on the low-alloy steel base in an external mode, the oil supply valve can be directly detached from the outside for replacement and maintenance when the oil supply valve needs to be maintained or replaced, the whole base does not need to be replaced or replaced after being detached, the cost is saved, the labor force is reduced, and the efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic sectional structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the base of the present invention;
FIG. 4 is a schematic view of a partial cross-sectional structure of the oil supply valve of the present invention;
FIG. 5 is a schematic view of the partial cross-sectional structure of the present invention;
fig. 6 is a schematic diagram of the cross-sectional structure of the middle oil cylinder of the present invention.
Illustration of the drawings: 1. a low alloy steel base; 11. an oil suction path; 12. pressing an oil way; 13. an oil supply path; 14. an oil return path; 2. an oil cylinder component; 21. a housing; 22. an oil cylinder; 23. a piston; 24. a piston rod; 25. an oil chamber; 26. reaming; 3. an oil pump component; 31. a throttle valve; 32. an oil return valve; 4. an oil supply valve; 41. a high and low pressure port; 42. a low pressure suction valve; 43. a fixing screw; 5. an overflow valve; 6. a dual high voltage configuration; 61. a high pressure check valve A; 62. a high-pressure check valve B; 7. and a small oil cylinder.
Detailed Description
The welding type oil pump assembly of the horizontal jack of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-6, a welding type oil pump assembly of a horizontal jack includes a low alloy steel base 1, an oil cylinder part 2 installed on the low alloy steel base 1, and an oil pump part 3 installed on the low alloy steel base 1; the oil cylinder component 2 comprises a shell 21 which is arranged on the low-alloy steel base 1 through welding, an oil cylinder 22 which is arranged on the low-alloy steel base 1 through welding and is positioned in the shell 21 and connected with the shell 21, a piston 23 which is arranged in the oil cylinder 22 in a sliding way and a piston rod 24 which is arranged on the piston 23, and an oil cavity 25 is formed between the shell 21 and the oil cylinder 22; the oil pump component 3 comprises an oil supply valve 4 and an overflow valve 5 which are detachably arranged on the low alloy steel base 1 and are convenient to install and maintain, a double high-pressure structure 6 arranged in the oil supply valve 4 and a small oil cylinder 7 which is arranged on the low alloy steel base 1 and is used for driving a piston 23 to lift up; one end of the oil cylinder 22 connected with the low alloy steel base 1 is provided with a pre-deformed reaming hole 26; the reaming hole 26 is a taper hole with a large outer part and a small inner part, the size of the reaming hole 26 is increased to 0.1-0.5 mm, and the length of the reaming hole 26 is 10-16 mm;
the pre-deformed reaming hole 26 is arranged at one end of the fixed connection between the oil cylinder 22 and the low alloy steel base 1 and is used for offsetting the deformation generated by the oil cylinder 22 during welding, so that the situation that the piston 23 is clamped due to the deformation of the bottom of the oil cylinder 22 and the piston 23 cannot move to the bottom is avoided.
Further, the oil pump part 3 further comprises a throttle valve 31 and an oil return valve 32 which are arranged on the low alloy steel base 1; the low alloy steel base 1 is provided with a high-low pressure hole 41 for installing the oil supply valve 4, and the low alloy steel base 1 is provided with an oil suction oil path 11 for communicating the high-low pressure hole 41 with the oil chamber 25, a pressurizing oil path 12 for communicating the high-low pressure hole 41 with the small oil cylinder 7, an oil supply oil path 13 for communicating the high-low pressure hole 41 with the oil cylinder 22, and an oil return oil path 14 for communicating the oil cylinder 22 with the oil chamber 25; the throttle valve 31 and the oil return valve 32 are arranged on the low alloy steel base 1 and are communicated with the oil return way 14;
during oil return, the oil return valve 32 is opened, the oil in the oil cylinder 22 flows back into the oil chamber 25 through the oil return passage 14, and the oil return valve 32 is closed after the oil return is completed.
Further, a low-pressure oil suction valve 42 is installed in the high-low pressure hole 41, a double high-pressure structure 6 is installed on the high-low pressure hole 41 and the oil supply oil path 13, and the double high-pressure structure 6 is a high-pressure one-way valve a61 installed in the high-low pressure hole 41 and a high-pressure one-way valve B62 installed on the oil supply oil path 13; the high-low pressure hole 41 is also provided with a fixing screw 43 for fixing the positions of the high-pressure one-way valve A61 and the low-pressure oil suction valve 42; the high-pressure one-way valve A61 and the low-pressure oil suction valve 42 are arranged in the high-pressure hole 41 through the fixing screws 43, when the high-pressure one-way valve A61 and the low-pressure oil suction valve 42 need to be maintained or replaced, the high-pressure one-way valve A61 and the low-pressure oil suction valve 42 can be detached for maintenance and replacement only by screwing the fixing screws 43 from the high-pressure hole 41, and the whole base does not need to be detached or replaced; through the setting of high-pressure check valve A61 and high-pressure check valve B62, adopt two high-pressure structures 6, make the oil pump performance more stable, avoid causing the injury to operating personnel because of the handle that leads to driving little hydro-cylinder 7 to pressurize the supply oil suddenly lifts up because of the backward flow bounce of high-pressure oil.
The utility model discloses a use:
when jacking is carried out, an operator drives the small oil cylinder 7 to act through a tool, when the piston 23 in the small oil cylinder 7 moves upwards, the low-pressure oil suction valve 42 is opened, oil in the oil cavity 25 is sucked into the small oil cylinder 7 through the oil suction oil way 11, then when the piston in the small oil cylinder 7 is driven to move downwards, the oil in the small oil cylinder 7 and the high-low pressure hole 41 is squeezed, the oil simultaneously squeezes the high-pressure one-way valve A61 and the low-pressure oil suction valve 42, the low-pressure oil suction valve 42 is pushed to move downwards to close the oil suction oil way 11, oil backflow into the oil cavity 25 is avoided, the high-pressure one-way valve A61 is pushed to move upwards to open the high-pressure one-way valve A61, then the high-pressure one-way valve B62 is squeezed, and the high-pressure one-way valve B62 is opened, and then the oil is pumped into the oil cylinder 22 through the oil supply way 13 to push the piston 23 to carry out jacking; when the piston in the small oil cylinder 7 does the reset action, the oil is not extruded any more, the high-pressure one-way valve B62 is extruded by the oil in the oil cylinder 22 to close the high-pressure one-way valve B62, and the high-pressure one-way valve A61 is reset to close the high-pressure one-way valve A61 by the reset force of the self spring; the small cylinder 7 is continuously and cyclically pressurized to lift up the piston 23.
The scope of the present invention is not limited to the above embodiments and their variations. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.
Claims (5)
1. A welding type oil pump assembly of a horizontal jack comprises a low alloy steel base (1), an oil cylinder component (2) installed on the low alloy steel base (1) and an oil pump component (3) installed on the low alloy steel base (1); the oil cylinder component (2) comprises a shell (21) arranged on the low-alloy steel base (1), an oil cylinder (22) which is arranged on the low-alloy steel base (1) and is positioned in the shell (21) and connected with the shell (21), a piston (23) which is slidably arranged in the oil cylinder (22) and a piston rod (24) which is arranged on the piston (23), and an oil cavity (25) is formed between the shell (21) and the oil cylinder (22); the oil pump component (3) is characterized by comprising an oil supply valve (4) and an overflow valve (5) which are detachably arranged on a low alloy steel base (1) and are convenient to install and maintain, a double high-pressure structure (6) arranged in the oil supply valve (4) and a small oil cylinder (7) which is arranged on the low alloy steel base (1) and is used for driving a piston (23) to lift up; one end of the oil cylinder (22) connected with the low alloy steel base (1) is provided with a pre-deformed reaming hole (26).
2. The horizontal jack welding type oil pump assembly of claim 1, wherein: the reaming hole (26) is a taper hole with a large outer part and a small inner part, the enlarging size of the reaming hole (26) is 0.1-0.5 mm, and the length of the reaming hole (26) is 10-16 mm.
3. The horizontal jack welding type oil pump assembly of claim 1, wherein: the oil pump component (3) also comprises a throttle valve (31) and an oil return valve (32) which are arranged on the low alloy steel base (1); the oil supply device is characterized in that a high-low pressure hole (41) used for installing the oil supply valve (4) is formed in the low-alloy steel base (1), an oil absorption oil way (11) communicated with the high-low pressure hole (41) and the oil cavity (25), a pressing oil way (12) communicated with the high-low pressure hole (41) and the small oil cylinder (7), an oil supply oil way (13) communicated with the high-low pressure hole (41) and the oil cylinder (22), and an oil return oil way (14) communicated with the oil cylinder (22) and the oil cavity (25) are formed in the low-alloy steel base (1).
4. The horizontal jack welding type oil pump assembly of claim 3, wherein: and the throttle valve (31) and the oil return valve (32) are arranged on the low alloy steel base (1) and are communicated with the oil return way (14).
5. The horizontal jack welding type oil pump assembly of claim 3, wherein: a low-pressure oil suction valve (42) is arranged in the high-low pressure hole (41), a double high-pressure structure (6) is arranged on the high-low pressure hole (41) and the oil supply oil way (13), and the double high-pressure structure (6) comprises a high-pressure one-way valve A (61) arranged in the high-low pressure hole (41) and a high-pressure one-way valve B (62) arranged on the oil supply oil way (13); and the high-pressure hole (41) and the low-pressure hole are also provided with fixing screws (43) for fixing the positions of the high-pressure one-way valve A (61) and the low-pressure oil suction valve (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222951008.9U CN218320496U (en) | 2022-11-07 | 2022-11-07 | Welding type oil pump assembly of horizontal jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222951008.9U CN218320496U (en) | 2022-11-07 | 2022-11-07 | Welding type oil pump assembly of horizontal jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218320496U true CN218320496U (en) | 2023-01-17 |
Family
ID=84828465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222951008.9U Active CN218320496U (en) | 2022-11-07 | 2022-11-07 | Welding type oil pump assembly of horizontal jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218320496U (en) |
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2022
- 2022-11-07 CN CN202222951008.9U patent/CN218320496U/en active Active
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