CN214744886U

CN214744886U - Variable oil pump

Info

Publication number: CN214744886U
Application number: CN202120999108.1U
Authority: CN
Inventors: 高建成; 金满; 张东东; 孙赟盛
Original assignee: Zhejiang Huatian Machinery Co ltd
Current assignee: Zhejiang Huatian Machinery Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-16
Anticipated expiration: 2031-05-11

Abstract

The utility model provides a variable oil pump, including the pump body, the oil pocket has been seted up to pump body inner wall, and the oil pocket top is connected with the pump oil gear with bottom side rotation, and pump body side block is connected with the closing cap on one side, and the driven shaft is installed to pump oil gear one side screw thread, and the driven shaft other end runs through closing cap one side fixed mounting and has driven gear, and driven gear surface cover is equipped with drive chain, and closing cap one side cover is equipped with the visor, and a visor inner wall avris fixed mounting has step motor, and step motor output fixed mounting has conical gear, and conical gear is connected with the drive chain meshing. The utility model provides a variable oil pump, the step motor who is equipped with adjusts conical gear's rotational speed, makes drive chain change driven gear's rotational speed, adjusts the pump oil speed of pump oil gear, avoids the oil pocket internal pump oil gear rotational speed too fast, promotes machine oil pressure stability, avoids machine oil to leak, and the solenoid valve and the accurate control oil mass output of electromagnetism restriction valve that are equipped with keep the oil pressure stable.

Description

Variable oil pump

Technical Field

The utility model belongs to the technical field of the oil pump, concretely relates to variable oil pump.

Background

The oil pump is used for forcibly pressing and conveying the oil to the moving surfaces of various parts of the engine after the oil is increased to a certain pressure. The oil pump can be divided into two types of gear type and rotor type. The gear-type oil pump is divided into an internal gear-type oil pump and an external gear-type oil pump, and the latter is generally called a gear-type oil pump.

The existing variable oil pump generally controls the pumped oil quantity through a control electromagnetic valve, and controls the oil quantity through feedback oil, and because the rotating speed of an inner rotor of the internal oil pump is inconvenient, the internal oil pump can not accurately control the quantity taking of the internal oil pump, and meanwhile, the oil pressure feedback is unstable, and the pressure is easy to cause overlarge oil leakage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a variable oil pump aims at solving among the prior art because inside oil pump inner rotor rotational speed is inconvenient, can not the inside oil pump of accurate control volume of getting, and when feedback machine oil pressure, the pressure that the unstability caused is too big simultaneously for machine oil takes place the problem of leaking.

In order to achieve the above object, the utility model provides a following technical scheme: a variable oil pump comprises a pump body, an oil cavity is arranged on the inner wall of the pump body, a first oil inlet channel is arranged on one side of the top of the inner wall of the pump body, a second oil inlet channel is arranged on one side of the bottom of the inner wall of the pump body, an oil outlet channel is arranged on the other side of the inner wall of the pump body, the first oil inlet channel, the second oil inlet channel and the oil outlet channel are all communicated with the oil cavity in a sealing way, one side of the top and the bottom of the oil cavity is rotationally connected with an oil pumping gear, one side of the pump body is clamped and connected with a sealing cover, one side of the oil pumping gear is provided with a driven shaft through threads, the other end of the driven shaft penetrates through one side of the sealing cover and is fixedly provided with a driven gear, the surface of the driven gear is sleeved with a transmission chain, a protective cover is covered on one side of the sealing cover, a stepping motor is fixedly arranged on one side of the inner wall of the protective cover, the output end of the stepping motor is fixedly provided with a bevel gear, and the bevel gear is meshed with the transmission chain.

In order to make the closing cap and the pump body install, as the utility model relates to a variable oil pump is preferred, four ends of closing cap outer wall are equipped with first stop nut, four ends of pump body outer wall are equipped with second stop nut, first stop nut passes through screw threaded connection with second stop nut.

In order to make prevent that machine oil from leaking, as the utility model relates to a variable oil pump is preferred, another avris of closing cap is equipped with airtight rubber pad.

In order to make spacing screwed pipe and screw fix, conduct the utility model relates to a variable oil pump is preferred, four ends of closing cap one side are equipped with spacing screwed pipe, four ends of visor opposite side have seted up threaded hole, spacing screwed pipe passes through screw and screw hole threaded connection.

In order to make the volume of producing oil to the pump control, conduct the utility model relates to a variable oil pump is preferred, it has the electromagnetism restriction valve to go out oil channel oil output end fixed mounting, be equipped with velocity of flow sensor and pressure sensor in the electromagnetism restriction valve.

In order to make an oil outlet end be connected with external equipment, conduct the utility model relates to a variable oil pump is preferred, electromagnetism restriction valve goes out oil end and is equipped with the connection solenoid, it is equipped with airtight packing ring to connect the solenoid inner wall.

In order to make the oil mass of going into the pump control, conduct the utility model relates to a variable oil pump is preferred, first oil feed passageway all is equipped with the solenoid valve with second oil feed passageway oil feed department.

In order to make each part normal operating, as the utility model relates to a variable oil pump is preferred, step motor, electromagnetism restriction valve, solenoid valve, velocity of flow sensor, pressure sensor all with PLC controller electric connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the stepping motor adjusts the rotating speed of the conical gear, so that the rotating speed of the driven gear is changed by the transmission chain, the oil pumping speed of the oil pumping gear is adjusted, the condition that the rotating speed of the oil pumping gear in an oil cavity is too high is avoided, the oil pressure stability of engine oil is improved, the engine oil leakage is avoided, the electromagnetic valve and the electromagnetic flow limiting valve are arranged to accurately control the oil output, the oil pressure is kept stable, and the leakage is avoided;

2) the oil inlet amount is controlled through the electromagnetic valve, the flow velocity sensor measures the oil outlet flow velocity of the oil outlet channel, the pressure sensor measures the oil outlet pressure of the oil outlet channel, and the PLC controls the accurate control electromagnetic valve and the electromagnetic flow limiting valve to pump the oil according to data, so that the oil pressure in the oil cavity is in a balanced state.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic view of a pump body structure in embodiment 1 of the present invention;

fig. 3 is a schematic view of a structure of a sealing cover in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a protective cover in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of an electromagnetic current limiting valve in embodiment 2 of the present invention.

In the figure: 1. a pump body; 2. an oil chamber; 3. a first oil inlet passage; 4. a second oil inlet passage; 5. an oil outlet channel; 6. an oil pumping gear; 7. sealing the cover; 8. a driven shaft; 9. a driven gear; 10. a drive chain; 11. a protective cover; 12. a stepping motor; 13. a bevel gear; 14. a first limit nut; 15. a second limit nut; 16. sealing the rubber pad; 17. a limiting solenoid; 18. a threaded hole; 19. an electromagnetic current limiting valve; 20. connecting a solenoid; 21. a sealing gasket; 22. an electromagnetic valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a variable oil pump comprises a pump body 1, an oil cavity 2 is formed in the inner wall of the pump body 1, a first oil inlet channel 3 is arranged on one side of the top of the inner wall of the pump body 1, a second oil inlet channel 4 is arranged on one side of the bottom of the inner wall of the pump body 1, an oil outlet channel 5 is arranged on the other side of the inner wall of the pump body 1, the first oil inlet channel 3, the second oil inlet channel 4 and the oil outlet channel 5 are all communicated with the oil cavity 2 in a sealing mode, an oil pumping gear 6 is rotatably connected with the top and one side of the bottom of the oil cavity 2, a sealing cover 7 is connected with one side of the pump body 1 in a clamping mode, a driven shaft 8 is installed on one side of the oil pumping gear 6 in a threaded mode, a driven gear 9 is fixedly installed on the other end of the driven shaft 8, a transmission chain 10 is sleeved on the surface of the driven gear 9, a protective cover 11 is arranged on one side of the sealing cover 7, a stepping motor 12 is fixedly installed on one side of the inner wall of the protective cover 11, and a conical gear 13 is fixedly installed on the output end of the stepping motor 12, the bevel gear 13 is in meshed connection with the transmission chain 10.

In this embodiment: four ends of the outer wall of the sealing cover 7 are provided with first limiting nuts 14, four ends of the outer wall of the pump body 1 are provided with second limiting nuts 15, and the first limiting nuts 14 are in threaded connection with the second limiting nuts 15 through screws.

During the specific use, block 7 and the pump body 1 with the closing cap, pass closing cap 7 one side with the driven shaft 8 and install with pump oil gear 6, fix first stop nut 14 and second stop nut 15 through the screw.

In this embodiment: the other side of the sealing cover 7 is provided with a sealing rubber pad 16.

When the oil pump is used specifically, the sealing rubber pad 16 is arranged to prevent the engine oil from leaking after the sealing cover 7 is connected with the pump body 1.

In this embodiment: the four ends of one side of the sealing cover 7 are provided with limiting screw tubes 17, the four ends of the other side of the protective cover 11 are provided with threaded holes 18, and the limiting screw tubes 17 are in threaded connection with the threaded holes 18 through screws.

When the pump body is used specifically, after the sealing cover 7 and the pump body 1 are installed, the surface of the driven gear 9 is sleeved with the transmission chain 10, the bevel gear 13 is clamped with the transmission chain 10, one side of the sealing cover 7 is aligned with one side of the protective cover 11, the limiting screwed pipe 17 is aligned with the screwed hole 18, and a screw penetrates through the screwed hole 18 and is fixed with the limiting screwed pipe 17.

The working principle is as follows: the sealing cover 7 is clamped with the pump body 1, the driven shaft 8 penetrates through one side of the sealing cover 7 to be installed with the oil pumping gear 6, the first limiting nut 14 and the second limiting nut 15 are fixed through bolts, after the sealing cover 7 is installed with the pump body 1, the surface of the driven gear 9 is sleeved with the transmission chain 10, the conical gear 13 is clamped with the transmission chain 10, one side of the sealing cover 7 is aligned with one side of the protective cover 11, the limiting screwed pipe 17 is aligned with the screwed hole 18, and a screw penetrates through the screwed hole 18 and is fixed with the limiting screwed pipe 17.

After the device is installed, the stepping motor 12 rotates the conical gear 13 to drive the transmission chain 10 to enable the driven gear 9 to rotate, the driven gear 9 drives the oil pumping gear 6 to rotate mutually to adsorb the engine oil in the oil cavity 2, and the rotating speed rate of the oil pumping gear 6 of the stepping motor 12 is controlled and adjusted to change the adsorption capacity of the engine oil.

Example 2

Referring to FIG. 5: the distinguishing features of this example that distinguish example 1 are: an electromagnetic flow limiting valve 19 is fixedly installed at the oil outlet end of the oil outlet channel 5, a flow velocity sensor and a pressure sensor are arranged in the electromagnetic flow limiting valve 19, a connecting solenoid 20 is arranged at the oil outlet end of the electromagnetic flow limiting valve 19, a sealing gasket 21 is arranged on the inner wall of the connecting solenoid 20, electromagnetic valves 22 are arranged at the oil inlet positions of the first oil inlet channel 3 and the second oil inlet channel 4, and the stepping motor 12, the electromagnetic flow limiting valve 19, the electromagnetic valves 22, the flow velocity sensor and the pressure sensor are electrically connected with the PLC.

Specifically, the connecting solenoid 20 is connected with an external oil receiving device, an airtight gasket 21 is arranged to prevent engine oil from leaking, the electromagnetic valve 22 controls the amount of engine oil entering the first oil inlet channel 3 and the second oil inlet channel 4, the flow rate sensor with the model of HY-RSL measures the oil outlet flow rate of the oil outlet channel 5, the pressure sensor with the model of MPX5010DP measures the oil outlet pressure of the oil outlet channel 5, the measured data is transmitted to the PLC, the PLC controls the adsorption amount of the electromagnetic valve 22 and the electromagnetic flow limiting valve 19 to the pumped-in engine oil according to the data to enable the oil pressure in the oil cavity 2 to be in a balanced state, the engine oil leakage is avoided, and an internal user can accurately control the stepping motor 12, the electromagnetic flow limiting valve 19, the electromagnetic valve 22, the flow rate sensor and the pressure sensor through the PLC.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A variable oil pump comprises a pump body (1), and is characterized in that: an oil cavity (2) is formed in the inner wall of the pump body (1), a first oil inlet channel (3) is arranged on one side of the top of the inner wall of the pump body (1), a second oil inlet channel (4) is arranged on one side of the bottom of the inner wall of the pump body (1), an oil outlet channel (5) is arranged on the other side of the inner wall of the pump body (1), the first oil inlet channel (3), the second oil inlet channel (4) and the oil outlet channel (5) are communicated with the oil cavity (2) in a sealing mode, an oil pumping gear (6) is rotatably connected with the top of the oil cavity (2) and one side of the bottom in a rotating mode, a sealing cover (7) is connected with one side of the pump body (1) in a clamping mode, a driven shaft (8) is installed on one side of the oil pumping gear (6) in a threaded mode, a driven gear (9) is fixedly installed on one side of the sealing cover (7) at the other end of the driven shaft (8), and a transmission chain (10) is sleeved on the surface of the driven gear (9), the protective cover (11) is covered on one side of the sealing cover (7), a stepping motor (12) is fixedly mounted on one side of the inner wall of the protective cover (11), a bevel gear (13) is fixedly mounted at the output end of the stepping motor (12), and the bevel gear (13) is meshed with the transmission chain (10).

2. The variable oil pump according to claim 1, characterized in that: the four ends of the outer wall of the sealing cover (7) are provided with first limiting nuts (14), the four ends of the outer wall of the pump body (1) are provided with second limiting nuts (15), and the first limiting nuts (14) are connected with the second limiting nuts (15) through screw threads.

3. The variable oil pump according to claim 1, characterized in that: and a sealed rubber pad (16) is arranged on the other side of the sealing cover (7).

4. The variable oil pump according to claim 1, characterized in that: four ends of one side of the sealing cover (7) are provided with limiting screw pipes (17), four ends of the other side of the protective cover (11) are provided with threaded holes (18), and the limiting screw pipes (17) are in threaded connection with the threaded holes (18) through screws.

5. The variable oil pump according to claim 1, characterized in that: an electromagnetic flow-limiting valve (19) is fixedly installed at the oil outlet end of the oil outlet channel (5), and a flow velocity sensor and a pressure sensor are arranged in the electromagnetic flow-limiting valve (19).

6. The variable oil pump according to claim 5, characterized in that: the oil outlet end of the electromagnetic current limiting valve (19) is provided with a connecting solenoid (20), and the inner wall of the connecting solenoid (20) is provided with a closed gasket (21).

7. The variable oil pump according to claim 6, characterized in that: and electromagnetic valves (22) are arranged at the oil inlet positions of the first oil inlet channel (3) and the second oil inlet channel (4).

8. The variable oil pump according to claim 7, characterized in that: the stepping motor (12), the electromagnetic current limiting valve (19), the electromagnetic valve (22), the flow velocity sensor and the pressure sensor are all electrically connected with the PLC.