CN215409024U - Oil supply device of single-shaft multi-axial micro plunger pump - Google Patents
Oil supply device of single-shaft multi-axial micro plunger pump Download PDFInfo
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- CN215409024U CN215409024U CN202120584649.8U CN202120584649U CN215409024U CN 215409024 U CN215409024 U CN 215409024U CN 202120584649 U CN202120584649 U CN 202120584649U CN 215409024 U CN215409024 U CN 215409024U
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- plunger
- cylinder body
- plunger pump
- rotating disc
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- 239000000446 fuel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 97
- 238000005096 rolling process Methods 0.000 description 10
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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Abstract
The utility model relates to an oil supply device of a single-shaft multi-axial micro plunger pump.A cylinder body is internally provided with an oil inlet channel consisting of a main oil channel and a plurality of auxiliary oil channels, each auxiliary oil channel is internally provided with a one-way valve, the cylinder body is internally provided with an oil channel corresponding to each plunger hole, the oil channel is not required to be arranged in a plunger like the traditional plunger pump, one end of the cylinder body close to a high-pressure cavity is additionally provided with a check cylinder body, and the one-way valve arranged in the check cylinder body can further avoid the counter flow of oil, so that the efficiency of the plunger pump is higher, and the accuracy of the working process is higher. The rotating disc and the rotating shaft are integrally formed, so that energy loss in the transmission process is greatly reduced, and the working efficiency is improved. The plunger pump has the advantages that the structure in the plunger pump is optimized, parts in the plunger pump are reduced, the structure of the plunger pump is simpler, the size of the plunger pump can be further reduced, the application range of the plunger pump is wider, and the manufacturing cost and the later maintenance cost of the plunger pump are reduced.
Description
Technical Field
The utility model belongs to the field of plunger pump structures, and particularly relates to an oil supply device of a single-shaft multi-axial micro plunger pump.
Background
The plunger pump is widely applied to pressure devices such as hydraulic cylinders, oil cylinders and the like due to the characteristics of the plunger pump, and the working principle of the plunger pump is that oil is pushed into a high-pressure cavity from a low-pressure cavity, so that the oil pressure in the high-pressure cavity is increased, and a push rod arranged in the high-pressure cavity is pushed to move. Another use of the plunger pump is for oil transportation during oil production in an oil well, i.e. oil is sucked into an oil pipeline to realize crude oil production. The traditional plunger pump comprises a low-pressure cavity, a cylinder body and a high-pressure cavity, wherein the low-pressure cavity and the high-pressure cavity are respectively arranged on two sides of the cylinder body, a plurality of plungers are arranged in the cylinder body, the plungers extend into a plunger head of the low-pressure cavity to abut against the surface of a rotating disc, the rotating disc rotates to drive the plungers to reciprocate, the plungers suck oil from the low-pressure cavity and push the oil out to the high-pressure cavity through an oil inlet channel, and a check valve arranged in the oil inlet channel has a check function so as to control the oil to flow in a single direction. The conventional plunger pump has the following problems: when the pressure of the high-pressure cavity is too high, the working accuracy of the one-way valve is reduced, and the working efficiency and the working accuracy of the plunger pump are influenced; the structures such as an internal oil path of the plunger pump are complex; the driving shaft is not directly connected with the rotating disc, so that certain energy loss exists; the rotating disc is connected with the plunger through connecting pieces such as sliding shoes and a ball head, the reset force of the plunger is provided for the plunger by the rotating disc through the connecting pieces, and the plunger pump has many parts and complex connecting mode, so that the whole plunger pump has many parts, the size of the plunger pump is overlarge, the plunger pump is not flexible to use, the power of a driving motor is high, energy is consumed, and the production and maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an oil supply device of a single-shaft multi-axial micro plunger pump, which comprises a low-pressure cavity, a cylinder body and a high-pressure cavity, wherein an oil inlet channel is arranged on the end surface of the cylinder body positioned on the inner side of all plungers, a one-way valve is arranged in the oil inlet channel, a check cylinder body is arranged on the end surface of the cylinder body positioned on the high-pressure cavity in a clinging manner, and a plurality of check oil channels are arranged in the check cylinder body.
The technical scheme adopted by the utility model is as follows:
the utility model provides a fuel feeding unit of miniature plunger pump of unipolar multiaxis, includes low-pressure chamber, cylinder body and high-pressure chamber, and one side of cylinder body is located the low-pressure chamber, and the opposite side of cylinder body is located the high-pressure chamber, is provided with oil feed way and a plurality of plunger hole in the cylinder body, wherein, the cylinder body is located and hugs closely on the terminal surface in high-pressure chamber and sets up a contrary cylinder body, is provided with a plurality of contrary oil ducts of ending in contrary cylinder body, every contrary oil duct of ending with a plunger hole counterpoint setting on the cylinder body is provided with one-way part in every contrary oil duct of ending, and every plunger hole is provided with one-way part in being close to the opening of ending contrary cylinder body.
The oil inlet channels are arranged on the end faces of the cylinder bodies on the inner sides of all the plungers, the end portions, located in the cylinder bodies, of the oil inlet channels are communicated with the plunger holes respectively, and one-way components are arranged in the oil inlet channels and used for controlling one-way flowing of oil.
And a one-way component is arranged in an opening of each check oil passage, which is close to the high-pressure cavity, and is used for controlling the oil in the check oil passages to flow into the high-pressure cavity in a one-way mode.
The one-way component is arranged in the opening of the plunger hole close to the check cylinder body and used for controlling the oil in the plunger hole to flow into the check oil passage in a one-way mode.
The rotating disc is arranged in the low-pressure cavity and aligned to the end portion of the plunger, all the plungers can be pushed to reciprocate in the cylinder body when the rotating disc rotates, and oil in the low-pressure cavity is sucked into the plunger hole and pushed out to the high-pressure cavity by the reciprocating motion of the plungers in the cylinder body.
The end face, facing the plungers, of the rotating disc is an inclined face, the inclined face is a smooth surface, and all the plungers are pushed to reciprocate in the cylinder body through the inclined face when the rotating disc rotates.
And the end part of the rotating shaft extending into the low-pressure cavity is fixedly connected with the rotating disc, detachably connected with the rotating disc or integrally manufactured to drive the rotating disc to rotate.
The shape of the end part of the plunger contacting with the rotating disc is a cone, a pyramid, a round table or a frustum of a pyramid.
The shape of the end part of the plunger contacting the rotating disc is a cone, and the included angle between the normal line of the cone and the plane is the same as the included angle between the inclined plane and the plane.
Wherein, the plunger outer fringe between the end of plunger contact rolling disc and the cylinder body is equipped with reset spring in a sleeved manner.
The utility model has the advantages and positive effects that:
according to the plunger pump, the oil inlet channel consisting of the main oil channel and the plurality of auxiliary oil channels is arranged in the cylinder body, the one-way valve is arranged in each auxiliary oil channel, the oil channel corresponding to each plunger hole is arranged in the cylinder body, the oil channel is not required to be arranged in the plunger like the traditional plunger pump, the processing and manufacturing process of the plunger pump is simple, the size of the plunger pump can be greatly reduced, and the production and later maintenance costs are reduced. The non-return cylinder body is additionally arranged at one end, close to the high-pressure cavity, of the cylinder body, the non-return valve arranged in the non-return cylinder body can further prevent oil from flowing reversely, so that the efficiency of the plunger pump is higher, and the accuracy of the working process is higher. The rolling disc and the rotating shaft are made in an integrated mode, so that the energy loss in the transmission process is greatly reduced, the working efficiency is improved, meanwhile, the parts inside the plunger pump are also reduced, the structure of the plunger pump is simpler, the size of the plunger hole can be further reduced due to the simple structure, the application range of the plunger pump is wider, and the manufacturing cost and the later maintenance cost of the plunger pump are reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the utility model.
The utility model provides a fuel feeding unit of miniature plunger pump of unipolar multiaxis, includes low-pressure chamber, cylinder body and high-pressure chamber, and one side of cylinder body is located the low-pressure chamber, and the opposite side of cylinder body is located the high-pressure chamber, is provided with oil feed way and a plurality of plunger hole in the cylinder body, wherein, the cylinder body is located and hugs closely on the terminal surface in high-pressure chamber and sets up a contrary cylinder body, is provided with a plurality of contrary oil ducts of ending in contrary cylinder body, every contrary oil duct of ending with a plunger hole counterpoint setting on the cylinder body is provided with one-way part in every contrary oil duct of ending, and every plunger hole is provided with one-way part in being close to the opening of ending contrary cylinder body.
And oil inlet channels are arranged on the end surfaces of the cylinder bodies on the inner sides of the plungers, the end parts of the oil inlet channels, which are positioned in the cylinder bodies, are respectively communicated with each plunger hole, and a one-way component is arranged in each oil inlet channel and is used for controlling the one-way flow of oil.
And a one-way component is arranged in an opening of each non-return oil duct, which is close to the high-pressure cavity, and is used for controlling the oil in the non-return oil duct to flow into the high-pressure cavity in a one-way mode.
The one-way component is arranged in the oil inlet channel and used for controlling oil in the low-pressure cavity to flow into the plunger hole in a one-way mode through the oil inlet channel, and the one-way component is arranged in the opening, close to the non-return cylinder body, of the plunger hole and used for controlling the oil in the plunger hole to flow into the non-return oil duct in a one-way mode.
In this embodiment, a cylinder 6 is disposed in a cavity in the wall 9 of the plunger pump, the cylinder separates and isolates the cavity inside the plunger pump into a low pressure cavity 12 and a high pressure cavity 16, and the low pressure cavity and the high pressure cavity are respectively located at two ends of the cylinder. Be provided with a plurality of plunger holes 5 in the cylinder body, specifically for set up a plurality of through-holes that can communicate low-pressure chamber and high-pressure chamber on the cylinder body, a plurality of plunger holes evenly encircle the range in the cylinder body, and the opening part that lies in the low-pressure chamber in every plunger hole is provided with plunger 13.
The one end that is located the cylinder body and is close to the high-pressure chamber is hugged closely and is provided with one and ends against cylinder body 1, and end against cylinder body is the same with the cross sectional area of cylinder body, is provided with a plurality of end against oil ducts 3 in end against cylinder body, and every end against oil duct all sets up with a plunger hole on the cylinder body all counterpoints, all is provided with one-way component in the end against oil duct, and the one-way component that adopts in this embodiment is check valve 2, and check valve 2 sets up in the opening that is close to the high-pressure chamber in end against oil duct.
An oil inlet channel is further arranged on the end face of the cylinder body on the inner side of the plunger hole, and an opening at one end of the oil inlet channel is located on the end face, facing the low-pressure cavity, of the cylinder body. The oil inlet passage comprises a main oil passage 7 and a plurality of auxiliary oil passages 15, an opening at one end of the main oil passage is located on the end face, facing the low-pressure cavity, of the cylinder body, the other end of the main oil passage is connected with the plurality of auxiliary oil passages, the auxiliary oil passages are arranged in the cylinder body, and the other ends of the auxiliary oil passages are communicated with the plunger holes respectively, so that the low-pressure cavity is communicated with the plunger holes.
Each auxiliary oil passage is provided with a one-way component, the one-way component in the embodiment is a one-way valve 14, and the one-way valve 14 is used for controlling oil to flow into the plunger hole from the low-pressure cavity in a one-way mode. The plunger hole is provided with a one-way valve 4 in the opening of the high-pressure cavity 1, the one-way valve 4 is used for controlling oil to flow into the non-return oil duct from the plunger hole in one way, and the oil in the non-return oil duct cannot flow back to the plunger hole due to pressure difference. Oil in the plunger hole flows into the check oil duct after passing through the check valve 4 and then flows into the high-pressure cavity through the check valve 2.
And a rotating disc is arranged in the low-pressure cavity and aligned with the end part of the plunger, the rotating disc can push all the plungers to reciprocate in the cylinder body when rotating, and the reciprocating motion of the plungers in the cylinder body can suck oil in the low-pressure cavity into the plunger hole and push the oil out of the high-pressure cavity.
The end face of the rotating disc, facing the plungers, is an inclined plane, the inclined plane is a smooth surface, and all the plungers are pushed to reciprocate in the cylinder body through the inclined plane when the rotating disc rotates.
And a rotating shaft is arranged on the cavity wall opposite to the plunger piston on the side of the low-pressure cavity, and the end part of the rotating shaft extending into the low-pressure cavity is fixedly connected, detachably connected or integrally manufactured with the rotating disc and drives the rotating disc to rotate.
The shape of the end part of the plunger contacting with the rotating disc is a cone, a pyramid, a round table or a frustum of a pyramid.
The shape of the end part of the plunger contacting the rotating disc is a cone, and the included angle between the normal line of the cone and the plane is the same as the included angle between the inclined plane and the plane.
And a return spring is sleeved on the outer edge of the plunger between the end part of the plunger contacting the rotating disc and the cylinder body.
In this embodiment, a rotating disk 11 is disposed in the low-pressure chamber, and the rotating disk and the plurality of plungers are aligned to enable the end portions of the plurality of plungers close to the rotating disk to be abutted to the rotating disk. The rotating disc is a disc with uniform thickness and is obliquely arranged in the low-pressure cavity, so that when the plungers abut against the rotating disc, the length of each plunger extending out of the cylinder body is different.
The rotating shaft 10 penetrates through the wall of the cavity on one side of the low-pressure cavity, which is opposite to the plunger, one end of the rotating shaft is positioned outside the low-pressure cavity, and the other end of the rotating shaft extends into the low-pressure cavity and is fixedly connected with the center of the rotating disc. In the embodiment, the plunger pump is manufactured by integrally molding the rotating shaft and the rotating disc, so that the number of parts of the plunger pump is reduced, the structure of the plunger pump is simplified, and the energy loss in the transmission process between the rotating shaft and the rotating disc is reduced.
The rotating shaft rotates under the driving of the external driving motor to drive the rotating disc to rotate in the low-pressure cavity, and the rotating disc can push all the plungers into the cylinder body in turn. One end of the plunger always abuts against the rotating disc when the rotating disc rotates, so that the surface of the rotating disc, which is in contact with the plunger, is a smooth surface in order to reduce friction between the plunger and the rotating disc.
Because the end part of the plunger piston contacting with the rotating disc belongs to an easy-to-wear part, the end part of the plunger piston contacting with the rotating disc is provided with the plunger piston head 8, in order to reduce the friction resistance and the friction loss with the smooth inclined surface of the rotating disc as much as possible, the plunger piston head and the rotating disc adopt a line contact mode, the shape of the plunger piston head is conical, the bottom surface of the conical is fixedly connected with one end of the plunger piston close to the rotating disc, the diameter of the bottom surface of the conical is slightly larger than that of the plunger piston, the included angle between the conical shape and the plane is the same as that between the smooth inclined surface of the rotating disc and the plane, so that the tangent line of the plunger piston head contacting with the surface of the rotating disc can be completely attached and abut against the surface of the rotating disc, the friction force is uniformly distributed in the rotating process of the rotating disc, the friction loss between the plunger piston head and the surface of the rotating disc is reduced, and the friction resistance between the plunger piston head and the rotating disc is reduced.
Because the plunger reciprocates along the plunger hole in the cylinder body, the smooth inclined plane of rolling disc can push the plunger to the cylinder body direction, consequently overlaps at the outer fringe that the plunger is located outside the cylinder body and is equipped with reset spring 17, and this reset spring one end withstands the circular cone type bottom surface of plunger head, and the cylinder body is withstood to the other end, in order to provide the restoring force who keeps away from the cylinder body direction and make the plunger head support on the smooth inclined plane of rolling disc all the time for the plunger.
The working process of the utility model is as follows: the outside driving motor of plunger pump and the end connection that the axis of rotation extends to the cavity outside, and driving motor drive axis of rotation rotate and drive the rolling disc and rotate, because the rolling disc is the setting of slope in the low pressure intracavity, the rolling disc is in turn pushed the plunger to the cylinder body in, and when the rolling disc was close to the tip of cylinder body and was changeed away from the plunger, the plunger supported the rolling disc and reset to the direction of keeping away from the cylinder body under reset spring's effect.
As shown in fig. 1, at this time, one end of the rotating disc close to the cylinder body is at a limit position, the plunger on the right side is reset at this time, due to the pressure, the check valve F is opened, the check valve D is closed, the check valve C is closed due to the pressure in the check cylinder body being lower than the pressure in the high-pressure cavity, and the oil flows into the auxiliary oil passage from the main oil passage and flows into the plunger hole on the right side through the check valve F; at the moment, the left plunger is pushed to the limit position in the cylinder body by the rotating disc, due to the pressure, the one-way valve E is closed, the one-way valve B is opened, oil flows into the non-return cylinder body from the plunger hole under the pressure of the plunger, the pressure in the non-return cylinder body is increased, the one-way valve A is opened, and the oil flows into the high-pressure cavity from the non-return cylinder body.
When the rotating disc rotates to the other limit position which is symmetrical to the position in the figure 1, the plunger piston on the left side and the plunger piston on the right side are opposite in state at the moment, the one-way valve F is closed, the one-way valve D is opened, the one-way valve C is opened under the action of pressure, and oil sucked into the plunger piston hole from the low-pressure cavity flows into the high-pressure cavity through the one-way valve D and the one-way valve C; and the check valve E is opened, the check valve B is closed, the check valve A is closed, and oil in the low-pressure cavity is sucked into the plunger hole through the check valve E through the main oil duct and the auxiliary oil duct.
3-5 plungers can be uniformly arranged in the cylinder body in a surrounding mode according to actual needs, and the more the number of the plungers is, the larger the flow rate of the oil liquid is.
According to the plunger pump, the oil inlet channel consisting of the main oil channel and the plurality of auxiliary oil channels is arranged in the cylinder body, the one-way valve is arranged in each auxiliary oil channel, the oil channel corresponding to each plunger hole is arranged in the cylinder body, the oil channel is not required to be arranged in the plunger like the traditional plunger pump, the processing and manufacturing process of the plunger pump is simple, the size of the plunger pump can be greatly reduced, and the production and later maintenance costs are reduced. The non-return cylinder body is additionally arranged at one end, close to the high-pressure cavity, of the cylinder body, the non-return valve arranged in the non-return cylinder body can further prevent oil from flowing reversely, so that the efficiency of the plunger pump is higher, and the accuracy of the working process is higher. The rolling disc and the rotating shaft are made in an integrated mode, so that the energy loss in the transmission process is greatly reduced, the working efficiency is improved, meanwhile, the parts inside the plunger pump are also reduced, the structure of the plunger pump is simpler, the size of the plunger hole can be further reduced due to the simple structure, the application range of the plunger pump is wider, and the manufacturing cost and the later maintenance cost of the plunger pump are reduced.
Claims (10)
1. The utility model provides a fuel feeding unit of miniature plunger pump of unipolar multiaxis, includes low-pressure chamber, cylinder body and high-pressure chamber, and one side of cylinder body is located the low-pressure chamber, and the opposite side of cylinder body is located the high-pressure chamber, is provided with oil feed way and a plurality of plunger hole in the cylinder body, its characterized in that: the check cylinder body is arranged on the end face, located on the high-pressure cavity, of the cylinder body in a close fit mode, a plurality of check oil passages are arranged in the check cylinder body, each check oil passage is arranged in a position corresponding to one plunger hole in the cylinder body, a one-way component is arranged in each check oil passage, and a one-way component is arranged in an opening, close to the check cylinder body, of each plunger hole.
2. The oil supply device of the uniaxial multiaxial micro plunger pump as set forth in claim 1, wherein: and oil inlet channels are arranged on the end surfaces of the cylinder bodies on the inner sides of the plungers, the end parts of the oil inlet channels, which are positioned in the cylinder bodies, are respectively communicated with each plunger hole, and a one-way component is arranged in each oil inlet channel and is used for controlling the one-way flow of oil.
3. The oil supply device of the uniaxial multiaxial micro plunger pump according to claim 1 or 2, wherein: and a one-way component is arranged in an opening of each non-return oil duct, which is close to the high-pressure cavity, and is used for controlling the oil in the non-return oil duct to flow into the high-pressure cavity in a one-way mode.
4. The oil supply device of the uniaxial multiaxial micro plunger pump according to claim 3, wherein: the one-way component is arranged in the oil inlet channel and used for controlling oil in the low-pressure cavity to flow into the plunger hole in a one-way mode through the oil inlet channel, and the one-way component is arranged in the opening, close to the non-return cylinder body, of the plunger hole and used for controlling the oil in the plunger hole to flow into the non-return oil duct in a one-way mode.
5. The oil supply device of the uniaxial multiaxial micro plunger pump according to claim 4, wherein: and a rotating disc is arranged in the low-pressure cavity and is aligned with the end part of the plunger, the rotating disc can push all the plungers to reciprocate in the cylinder body when rotating, and the reciprocating motion of the plungers in the cylinder body can suck oil in the low-pressure cavity into the plunger cylinder and push the oil out of the high-pressure cavity.
6. The oil supply device of the uniaxial multiaxial micro plunger pump according to claim 5, wherein: the end face, facing the plungers, of the rotating disc is an inclined face, the inclined face is a smooth surface, and all the plungers are pushed to reciprocate in the cylinder body through the inclined face when the rotating disc rotates.
7. The oil supply device of the uniaxial multiaxial micro plunger pump according to claim 6, wherein: and a rotating shaft is arranged on the cavity wall opposite to the plunger piston on the side of the low-pressure cavity, and the end part of the rotating shaft extending into the low-pressure cavity is fixedly connected, detachably connected or integrally manufactured with the rotating disc and drives the rotating disc to rotate.
8. The oil supply device of the uniaxial multiaxial micro plunger pump according to claim 6 or 7, wherein: the shape of the end part of the plunger contacting with the rotating disc is a cone, a pyramid, a round table or a frustum of a pyramid.
9. The oil supply device of the uniaxial multiaxial micro plunger pump as set forth in claim 8, wherein: the shape of the end part of the plunger contacting the rotating disc is a cone, and the included angle between the normal line of the cone and the plane is the same as the included angle between the inclined plane and the plane.
10. The oil supply device of the uniaxial multiaxial micro plunger pump as set forth in claim 9, wherein: and a return spring is sleeved on the outer edge of the plunger between the end part of the plunger contacting the rotating disc and the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120584649.8U CN215409024U (en) | 2021-03-23 | 2021-03-23 | Oil supply device of single-shaft multi-axial micro plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120584649.8U CN215409024U (en) | 2021-03-23 | 2021-03-23 | Oil supply device of single-shaft multi-axial micro plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215409024U true CN215409024U (en) | 2022-01-04 |
Family
ID=79669008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120584649.8U Expired - Fee Related CN215409024U (en) | 2021-03-23 | 2021-03-23 | Oil supply device of single-shaft multi-axial micro plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215409024U (en) |
-
2021
- 2021-03-23 CN CN202120584649.8U patent/CN215409024U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |