CN209228605U - A kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field - Google Patents
A kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field Download PDFInfo
- Publication number
- CN209228605U CN209228605U CN201822106814.XU CN201822106814U CN209228605U CN 209228605 U CN209228605 U CN 209228605U CN 201822106814 U CN201822106814 U CN 201822106814U CN 209228605 U CN209228605 U CN 209228605U
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- cylinder body
- oil
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- automobile
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Abstract
The utility model discloses a kind of extraordinary automobile-used plunger pump overflow pressure relief devices in oil field, including first shell, second shell and rear cover, the inside of the first shell is equipped with return plate, the inside of the second shell offers cylinder body, the internal activity of the cylinder body is plugged with plunger, the end of the plunger is connected by flexural pivot with return plate, one end of the cylinder body is connected by jet with flowline, the flowline is pre-installed on the inside of rear cover, the threaded hole being connected with cylinder body is offered in the second shell, the internal whorl of the threaded hole is connected with overflow valve, the first oil inlet is offered in the first shell.By opening up the threaded hole being connected with cylinder body on the second housing, overflow valve is installed in threaded hole, be conducive to when oil mass is discharged in plunger, the air that can will be inhaled into oil liquid, or when oil liquid pressure is subatmospheric, caused pressure carries out pressure release, keeps the pressure in cylinder body balanced.
Description
Technical field
The utility model relates to plunger pump technique field, specially a kind of extraordinary automobile-used plunger pump overflow pressure relief dress in oil field
It sets.
Background technique
Plunger pump is an important device of hydraulic system.It is moved back and forth in cylinder body by plunger, makes seal operation
The volume of cavity changes to realize oil suction, pressure oil.Plunger pump high, compact-sized, high-efficient and flow with rated pressure
The advantages that easy to adjust.The occasion that plunger pump is widely used in high pressure, big flow and flow need to adjust, such as hydraulic press,
In engineering machinery and ship.
In plunger pump liquid work, the sucking of air, or make the variation of ambient pressure, it is easy to produce plunger pump pressure
Unevenness so that in plunger pump part shock and friction, be easy to cause the damage of plunger pump.For this purpose, it is proposed that a kind of oil field
Extraordinary automobile-used plunger pump overflow pressure relief device.
Utility model content
The purpose of this utility model is to provide a kind of extraordinary automobile-used plunger pump overflow pressure relief devices in oil field, by second
The threaded hole being connected with cylinder body is opened up on shell, overflow valve is installed in threaded hole, is conducive to when oil mass is discharged in plunger
It waits, the air that can will be inhaled into oil liquid, or when oil liquid pressure is subatmospheric, caused pressure carries out pressure release,
To solve the problems, such as to propose that plunger pump is easy to produce plunger pump pressure unevenness in above-mentioned background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of extraordinary automobile-used plunger pump overflow in oil field
Pressure relief device, including first shell, second shell and rear cover, the inside of the first shell are equipped with return plate, and described second
The inside of shell offers cylinder body, and the internal activity of the cylinder body is plugged with plunger, and the end of the plunger by flexural pivot and is returned
Journey disk connects, and one end of the cylinder body is connected by jet with flowline, and the flowline is pre-installed on the inside of rear cover, institute
The threaded hole for offering in second shell and being connected with cylinder body is stated, the internal whorl of the threaded hole is connected with overflow valve, described
The first oil inlet is offered in first shell.
Preferably, the side of the first shell is equipped with outside framework oil seal, and transmission shaft, institute are equipped in the outside framework oil seal
The end for stating transmission shaft is installed on the side of return plate.
Preferably, the inside of the plunger offers cavity, and the inside of the cavity is equipped with the first compressed spring, described
The end of first compressed spring is equipped with the first ball sealer.
Preferably, the both ends of the cavity offer the second oil inlet and the second oil outlet respectively.
Preferably, the inside of the flowline is equipped with the second compressed spring, the end installation of second compressed spring
There is the second ball sealer, second ball sealer connects and is not attached to the jet of cylinder body.
Preferably, fixed block is fixedly connected on the outside of the plunger, the side of the fixed block is equipped with third and compresses bullet
Spring, the third compressed spring are socketed on the outside of plunger.
Preferably, the first shell, second shell and rear cover pass sequentially through screw and are installed, and first shell,
Gasket is mounted between two shells and rear cover.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model is installed in threaded hole and is overflow by opening up the threaded hole being connected with cylinder body on the second housing
Valve is flowed, is conducive to when oil mass is discharged in plunger, the air that can will be inhaled into oil liquid, or in oil liquid pressure lower than big
When air pressure, caused pressure carries out pressure release, keeps the pressure in cylinder body balanced；
2, the utility model drives plunger to move repeatedly in cylinder body by return plate, and the oil in first shell is passed through
Flowline discharge.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the area Tu1Zhong A enlarged structure schematic diagram；
Fig. 3 is B-B the schematic diagram of the section structure in Fig. 1.
In figure: 1 first shell, 2 second shells, 3 rear covers, 4 first oil inlets, 5 cylinder bodies, 6 flowlines, 7 threaded holes, 8 are overflow
Flow valve, 9 transmission shafts, 10 return plates, 11 plungers, 12 outside framework oil seals, 13 cavitys, 14 first compressed springs, 15 first ball sealers, 16
Second oil outlet, 17 second oil inlets, 18 third compressed springs, 19 fixed blocks, 20 second compressed springs, 21 second ball sealers.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, the utility model provides a kind of technical solution: a kind of automobile-used plunger pump overflow of oil field special type is let out
Pressure device, including first shell 1, second shell 2 and rear cover 3, the first shell 1, second shell 2 and rear cover 3 form plunger pump
Entirety, convenient for assembling, the inside of the first shell 1 is equipped with return plate 10, and the side of the return plate 10 is inclined surface, just
In driving plunger 11 to move back and forth, the inside of the second shell 2 offers cylinder body 5, and the internal activity of the cylinder body 5 is plugged with
Plunger 11, the end of the plunger 11 are connected by flexural pivot with return plate 10, one end of the cylinder body 5 pass through jet with it is fuel-displaced
Pipe 6 is connected, and the flowline 6 is pre-installed on the inside of rear cover 3, offers the spiral shell being connected with cylinder body 5 in the second shell 2
Pit 7, the internal whorl of the threaded hole 7 are connected with overflow valve 8, and overflow valve is a kind of hydraulic pressure control valve, set hydraulic
Level pressure overflow, pressure stabilizing, system unloaded and safeguard protection effect, in constant displacement pump flow restriction control system, constant displacement pump are mainly played in standby
Provide constant flow rate.When system pressure increases, flow demand can be made to reduce.Overflow valve is opened at this time, makes excess traffic
Excessive oil return box, guarantees overflow valve inlet pressure, i.e. pump discharge pressure is constant (valve port is often opened with pressure oscillation), the first shell
The first oil inlet 4 is offered on body 1, which enters in first shell 1 convenient for crude oil.
Specifically, the side of the first shell 1 is equipped with outside framework oil seal 12, transmission is installed in the outside framework oil seal 12
The end of axis 9, the transmission shaft 9 is installed on the side of return plate 10.The transmission shaft 9 is connect with driving motor case, and motor drives
Return plate 10 rotates, and allows return plate 10 that plunger 11 is driven to move repeatedly in cylinder body 5.
Specifically, the inside of the plunger 11 offers cavity 13, the inside of the cavity 13 is equipped with the first compression bullet
Spring 14, the end of first compressed spring 14 are equipped with the first ball sealer 15.Inside one end of the cavity 13 is taper setting,
The first ball sealer 15 is allowed to block cavity 13, when plunger 11 moves downward, the first compressed spring 14 is compressed, so that former
Oil enters in cavity 13, and when plunger 11 is to by moving, the first compressed spring 14 resets, and drives the first ball sealer 15 that can block up
Crude oil can be pressed into flowline 6 by firmly cavity 13.
Specifically, the both ends of the cavity 13 offer the second oil inlet 17 and the second oil outlet 16 respectively.This second into
Hydraulic fluid port 17 and the second oil outlet 16 are conducive to crude oil inlet and outlet cavity 13.
Specifically, the inside of the flowline 6 is equipped with the second compressed spring 20, the end of second compressed spring 20
Second ball sealer 21 is installed, second ball sealer 21 connects and is not attached to the jet of cylinder body 5.It is transported to the left in plunger 11
When dynamic, the second compressed spring 20 resets, and the second ball sealer 21 is driven to block the jet of cylinder body 5, when plunger 11 is to by moving,
The compression of second compressed spring 20, enters crude oil in flowline 6, and be discharged.
Specifically, the outside of the plunger 11 is fixedly connected with fixed block 19, the side of the fixed block 19 is equipped with third
Compressed spring 18, the third compressed spring 18 are socketed on the outside of plunger 11.The third compressed spring 18 is conducive to squeeze plunger
11 are resetted, and plunger 11 is tightly attached on return plate 10.
Specifically, the first shell 1, second shell 2 and rear cover 3 pass sequentially through screw and are installed, and first shell
1, gasket is mounted between second shell 2 and rear cover 3.The first shell 1, second shell 2 and rear cover 3 form plunger pump
It is whole, convenient for assembling.
Working principle: in use, transmission shaft 9 is connect with driving motor case, the first oil inlet 4 is connected with crude oil pipe
Logical, motor drives return plate 10 to rotate, so that return plate 10 is to drive plunger 11 to move repeatedly in cylinder body 5, so that crude oil
It is entered in the cavity 13 inside plunger 11 from the second oil inlet 17, when plunger 11 moves downward, 14 quilt of the first compressed spring
Compression, the second compressed spring 20 reset, and drive the second ball sealer 21 to block the jet of cylinder body 5, so that crude oil enters cavity
In 13, when plunger 11 is to by moving, the first compressed spring 14 resets, and drives the first ball sealer 15 that can block cavity 13, the
Two compressed springs 20 compression, drive the second ball sealer 21 open cylinder body 5 jet, allow so that crude oil enter it is fuel-displaced
In pipe 6, and it is discharged；The overflow valve 8 installed in threaded hole 7 is conducive to that oil liquid will be inhaled into when oil mass is discharged in plunger 11
In air, or when oil liquid pressure is subatmospheric, caused pressure carries out pressure release, keeps the pressure in cylinder body 5 equal
Weighing apparatus.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field, including first shell (1), second shell (2) and rear cover
(3), it is characterised in that: the inside of the first shell (1) is equipped with return plate (10), and the inside of the second shell (2) is opened
Equipped with cylinder body (5), the internal activity of the cylinder body (5) is plugged with plunger (11), the end of the plunger (11) by flexural pivot with
Return plate (10) connects, and one end of the cylinder body (5) is connected by jet with flowline (6), flowline (6) prepackage
The threaded hole (7) being connected with cylinder body (5), the threaded hole are offered in the inside of rear cover (3), the second shell (2)
(7) internal whorl is connected with overflow valve (8), offers the first oil inlet (4) on the first shell (1).
2. a kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field according to claim 1, it is characterised in that: described the
The side of one shell (1) is equipped with outside framework oil seal (12), is equipped with transmission shaft (9), the transmission in the outside framework oil seal (12)
The end of axis (9) is installed on the side of return plate (10).
3. the extraordinary automobile-used plunger pump overflow pressure relief device in a kind of oil field according to claim 1, it is characterised in that: the column
The inside of plug (11) offers cavity (13), and the inside of the cavity (13) is equipped with the first compressed spring (14), and described first
The end of compressed spring (14) is equipped with the first ball sealer (15).
4. the extraordinary automobile-used plunger pump overflow pressure relief device in a kind of oil field according to claim 3, it is characterised in that: the sky
The both ends of chamber (13) offer the second oil inlet (17) and the second oil outlet (16) respectively.
5. a kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field according to claim 1, it is characterised in that: it is described go out
The inside of oil pipe (6) is equipped with the second compressed spring (20), and the end of second compressed spring (20) is equipped with the second sealing
Ball (21), second ball sealer (21) connect and are not attached to the jet of cylinder body (5).
6. the extraordinary automobile-used plunger pump overflow pressure relief device in a kind of oil field according to claim 1, it is characterised in that: the column
It is fixedly connected with fixed block (19) on the outside of plug (11), the side of the fixed block (19) is equipped with third compressed spring (18), institute
State the outside that third compressed spring (18) is socketed on plunger (11).
7. a kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field according to claim 1, it is characterised in that: described the
One shell (1), second shell (2) and rear cover (3) pass sequentially through screw and are installed, and first shell (1), second shell (2)
Gasket is mounted between rear cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822106814.XU CN209228605U (en) | 2018-12-15 | 2018-12-15 | A kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822106814.XU CN209228605U (en) | 2018-12-15 | 2018-12-15 | A kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209228605U true CN209228605U (en) | 2019-08-09 |
Family
ID=67507724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822106814.XU Expired - Fee Related CN209228605U (en) | 2018-12-15 | 2018-12-15 | A kind of extraordinary automobile-used plunger pump overflow pressure relief device in oil field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209228605U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500270A (en) * | 2019-08-23 | 2019-11-26 | 重庆微液科技有限公司 | A kind of bidirectional high speed Small Plunger Pump inserting hydraulic fluid port |
| CN112594147A (en) * | 2020-11-27 | 2021-04-02 | 江苏欧盛液压科技有限公司 | Device and method for preventing back pressure of inner cavity of plunger pump shell from being high |
| CN113565732A (en) * | 2021-05-19 | 2021-10-29 | 马可继 | Dry vacuum pump |
| CN114810546A (en) * | 2022-03-03 | 2022-07-29 | 姚金彪 | New energy automobile air conditioner compressor and working method thereof |
| CN116771624A (en) * | 2022-03-17 | 2023-09-19 | 刘沐玮 | Axial plunger type hydraulic pump for hydraulic return stroke |
-
2018
- 2018-12-15 CN CN201822106814.XU patent/CN209228605U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500270A (en) * | 2019-08-23 | 2019-11-26 | 重庆微液科技有限公司 | A kind of bidirectional high speed Small Plunger Pump inserting hydraulic fluid port |
| CN112594147A (en) * | 2020-11-27 | 2021-04-02 | 江苏欧盛液压科技有限公司 | Device and method for preventing back pressure of inner cavity of plunger pump shell from being high |
| CN113565732A (en) * | 2021-05-19 | 2021-10-29 | 马可继 | Dry vacuum pump |
| CN114810546A (en) * | 2022-03-03 | 2022-07-29 | 姚金彪 | New energy automobile air conditioner compressor and working method thereof |
| CN116771624A (en) * | 2022-03-17 | 2023-09-19 | 刘沐玮 | Axial plunger type hydraulic pump for hydraulic return stroke |
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Legal Events
| 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: 20190809 Termination date: 20191215 |