CN220957874U

CN220957874U - Oil pump

Info

Publication number: CN220957874U
Application number: CN202322696740.0U
Authority: CN
Inventors: 易建军; 蹇永勇; 孙建; 何太平
Original assignee: Mianyang Wanxin Huijia Automotive Parts Co ltd
Current assignee: Mianyang Wanxin Huijia Automotive Parts Co ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-05-14
Anticipated expiration: 2033-10-08

Abstract

The utility model relates to the technical field of oil pumps and discloses an oil pump which comprises a bottom plate, wherein a pump box is arranged on the right side of the bottom plate, an oil inlet is formed in the front end of the pump box, an oil inlet pipe is arranged on the inner wall of the oil inlet, an oil outlet is formed in the back surface of the pump box, oil outlet pipes are arranged on the inner wall of the oil outlet, bearings are arranged on the inner walls of the left side and the right side of the pump box, a rotating rod is arranged on the inner wall of the bearing, a first gear is arranged on the surface of the rotating rod, a motor is arranged on the left side of the pump box, a second gear is arranged on an output shaft of the motor, a protective shell is arranged on the outer side of the motor, a supporting frame is arranged at the bottom of the protective shell, and a cooling fan is arranged on the left side of the protective shell. The utility model generates the action of sucking and discharging the engine oil by the rotation of the first gear and the second gear, when the gears rotate, the gears can create a low pressure area to suck the engine oil into the pump and then convey the engine oil into the engine through the oil pipe, the gear pump has a relatively simple structure and is composed of a small number of parts, and therefore, the manufacturing and maintenance cost is relatively low.

Description

Oil pump

Technical Field

The utility model relates to the technical field of oil pumps, in particular to an oil pump.

Background

In order to ensure the circulating oil quantity of the engine lubricating system, the oil pump sucks the engine oil from the oil pan to the main oil duct, necessary mediums are provided for lubrication of all parts of the engine, the internal gear pump is a pump structure of the oil pump, and the gear pump consists of a pair of meshed gears, and the action of sucking and discharging the engine oil is generated through rotation of the gears.

When the gears rotate, they create a low pressure area, which sucks the oil into the pump and then delivers it to the engine through the oil passage, the oil pump sucks and discharges the oil due to the rotation of the gears, the existing gear pump generates noise and vibration during operation, which causes interference to the surrounding environment, and if the gap is not tightly sealed, leakage can be caused, or high pressure oil is sprayed out through the gap, which not only causes injury to operators, but also causes oil waste and environmental pollution.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an oil pump which has the advantages of convenient installation, sufficient power, good sealing performance and noise reduction, and solves the technical problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an oil pump, includes the bottom plate, the right side installation pump box of bottom plate, the oil inlet is seted up to the front end of pump box, the oil inlet pipe is installed to the inner wall of oil inlet, the oil-out is seted up to the back of pump box, the inner wall installation oil outlet pipe of oil-out, the inner wall installation bearing of pump box left and right sides, the inner wall installation bull stick of bearing, the surface mounting first gear of bull stick, the motor is installed in the left side of pump box, the second gear is installed to the output shaft of motor, the externally mounted protective housing of motor, the bottom erection bracing frame of protective housing, radiator fan is installed in the left side of protective housing, the top installation handle of protective housing.

Preferably, the first gear and the second gear are located inside the pump case, and the first gear and the second gear are engaged.

By means of the above technical solution, the action of sucking and discharging the engine oil is produced by the rotation of the first and second gears, which create a low pressure zone when the gears rotate, sucking the engine oil into the pump and then delivering it to the engine through the oil pipe, the gear pump is relatively simple in structure and composed of a small number of parts, and therefore relatively low in manufacturing and maintenance costs, the gear pumps generally have good self-priming properties, which means that they can suck the engine oil rapidly at start-up and build up the necessary working pressure, without additional auxiliary devices.

Preferably, sealing gaskets are arranged on the inner walls of the pump boxes.

Through above-mentioned technical scheme, the main function of sealed pad is to form effectual sealed between pump box and other adjacent parts, prevent that the engine oil from leaking, the engine oil leakage probably leads to the oil pressure to drop, lubrication is insufficient and the overheated and wearing and tearing of mechanical parts, through installing sealed pad, can reduce the leakage risk effectively, ensure that the engine oil keeps normal cycle in the pump box, the work efficiency of engine oil pump is closely correlated with the fluid flow state in the pump box, if there is the leakage, the engine oil can run off from leaking the department, lead to the fluid volume in the pump box to reduce, this will increase the inside air content of pump box, reduce the suction efficiency of pump, and probably lead to the cavitation phenomenon.

Preferably, a backflow prevention valve is installed in the oil inlet pipe.

Through the technical scheme, the main function of the backflow prevention valve is to prevent engine oil from flowing backwards when the engine stops running or the oil pressure is reduced, when the engine stops or the oil pressure is reduced, the backflow prevention valve is closed to prevent the engine oil from flowing backwards in the oil inlet pipe and returning to the oil tank or other systems, so that the lubricating system of the engine can be kept in a normal working state, the problems of oil loss and insufficient lubrication are avoided, the existence of the backflow prevention valve can help to maintain the stable oil pressure of the lubricating system of the engine, the engine oil can be prevented from flowing back to the oil tank after the engine stops running, and the loss of the oil and the air suction of the lubricating system are avoided.

Preferably, the support frame is located at the left side of the bottom plate, and the support frame and the pump box are both installed on the upper surface of the bottom plate.

Through above-mentioned technical scheme, with support frame and the pump box direct mount of supporting motor at the upper surface of bottom plate, can simplify installation and equipment process, because they share the same basic platform, can align and fix them on the bottom plate more easily, adjustment and calibration work in the reduction equipment process can increase the stability and the rigidity of entire system, the bottom plate is as a firm back face, can disperse and bear weight and the vibratory force of motor and pump box effectively, reduce the deformation and the rocking of structure, install support frame and the pump box of supporting motor at the upper surface of bottom plate, can effectively utilize vertical space.

Preferably, a rubber pad is arranged at the bottom of the bottom plate, and the rubber pad is glued on the lower surface of the bottom plate.

Through above-mentioned technical scheme, the rubber pad has good elasticity and buffering performance, can absorb and reduce vibration and impact effectively, the rubber pad has good anti-skidding performance, can increase the frictional force between bottom plate and the ground, through the lower surface of cementing rubber pad at the bottom plate, can provide more firm contact surface, reduce the subaerial slip and the removal of bottom plate, this helps improving stability and the security of equipment, prevent equipment at the unexpected accident that leads to because of the slip in the operation process, the rubber pad can absorb and keep apart the energy of vibration effectively to reduce the noise propagation that vibration produced.

Compared with the prior art, the utility model provides the oil pump, which has the following beneficial effects:

1. The present utility model generates the action of sucking and discharging the oil by the rotation of the first gear and the second gear, which create a low pressure area when the gears rotate, sucking the oil into the pump and then delivering it to the engine through the oil pipe, the gear pump is relatively simple in structure and is composed of a small number of parts, and therefore the manufacturing and maintenance costs are relatively low, the gear pumps generally have good self-priming performance, which means that they can suck the oil rapidly and build up the necessary working pressure at the start-up without additional auxiliary devices.

2. According to the utility model, an effective seal is formed between the pump box and other adjacent parts through the sealing gasket, so that the engine oil leakage is prevented, the oil pressure drop, insufficient lubrication and overheating and abrasion of mechanical parts can be possibly caused by the engine oil leakage, the leakage risk can be effectively reduced through the installation of the sealing gasket, the engine oil can be ensured to keep normal circulation in the pump box, the working efficiency of the engine oil pump is closely related to the oil flowing state in the pump box, if leakage exists, the engine oil can be lost from the leakage part, the oil liquid amount in the pump box is reduced, the air content in the pump box is increased, the suction efficiency of the pump is reduced, and the cavitation phenomenon can be possibly caused.

Drawings

FIG. 1 is a schematic diagram of a left front view of the structure of the present utility model;

FIG. 2 is a schematic diagram of the left side of the structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of A-A in FIG. 2, which is a structural view of the present utility model;

FIG. 4 is a schematic rear view of the structure of the present utility model;

FIG. 5 is a schematic cross-sectional view of B-B in FIG. 4, which is a structural diagram of the present utility model.

Wherein: 1. a bottom plate; 2. a pump case; 3. an oil inlet; 4. an oil inlet pipe; 5. an oil outlet; 6. an oil outlet pipe; 7. a bearing; 8. a rotating rod; 9. a first gear; 10. a motor; 11. a second gear; 12. a protective shell; 13. a support frame; 14. a heat radiation fan; 15. a handle; 16. a sealing gasket; 17. a backflow prevention valve; 18. and a rubber pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

Referring to fig. 1-3, an oil pump comprises a bottom plate 1, a pump box 2 is installed on the right side of the bottom plate 1, an oil inlet 3 is formed in the front end of the pump box 2, an oil inlet pipe 4 is installed on the inner wall of the oil inlet 3, an oil outlet 5 is formed in the back surface of the pump box 2, an oil outlet pipe 6 is installed on the inner wall of the oil outlet 5, bearings 7 are installed on the inner walls of the left side and the right side of the pump box 2, a rotating rod 8 is installed on the inner wall of the bearings 7, a first gear 9 is installed on the surface of the rotating rod 8, a motor 10 is installed on the left side of the pump box 2, a second gear 11 is installed on the output shaft of the motor 10, a protective shell 12 is installed on the outer side of the motor 10, a support frame 13 is installed on the bottom of the protective shell 12, a radiator fan 14 is installed on the left side of the protective shell 12, and a handle 15 is installed on the top of the protective shell 12.

Specifically, the first gear 9 and the second gear 11 are located inside the pump housing 2, and the first gear 9 and the second gear 11 are meshed. The advantage is that the action of sucking and discharging the oil is produced by the rotation of the first and second gears 9, 11, which create a low pressure zone when they rotate, sucking the oil into the pump and then delivering it to the engine through the oil line, the gear pump is relatively simple in construction and consists of a small number of parts, and therefore relatively low in manufacturing and maintenance costs, the gear pumps generally have good self-priming properties, which means that they can suck the oil rapidly at start-up and build up the necessary working pressure, without additional auxiliary devices.

Specifically, the inner walls of the pump housing 2 are each provided with a gasket 16. The advantages are that the main function of the gasket 16 is to form an effective seal between the pump housing 2 and other adjacent components, preventing oil leakage which may lead to reduced oil pressure, insufficient lubrication and overheating and wear of mechanical components, and by installing the gasket 16, the risk of leakage can be effectively reduced, ensuring that the oil remains normally circulated in the pump housing 2, the working efficiency of the oil pump is closely related to the oil flow condition in the pump housing 2, and if there is leakage, the oil can be lost from the leakage, resulting in a reduced amount of oil in the pump housing 2, which will increase the air content in the pump housing 2, reduce the suction efficiency of the pump, and possibly lead to cavitation.

Specifically, the backflow preventing valve 17 is installed in the oil inlet pipe 4. The backflow prevention valve 17 has the advantages that the backflow prevention valve 17 has the main function of preventing engine oil from flowing backwards when the engine stops running or the oil pressure is reduced, the backflow prevention valve 17 is closed to prevent engine oil from flowing backwards in the oil inlet pipe 4 and returning to the oil tank or other systems, so that the lubrication system of the engine can be kept in a normal working state, the problems of oil loss and insufficient lubrication are avoided, the existence of the backflow prevention valve 17 can help to maintain the oil pressure stability of the lubrication system of the engine, the engine oil can be prevented from flowing back to the oil tank after the engine stops running, and the loss of oil and the air suction of the lubrication system are avoided.

As shown in fig. 4-5, as an improvement over the previous embodiment.

Specifically, the support frame 13 is located on the left side of the bottom plate 1, and the support frame 13 and the pump box 2 are both installed on the upper surface of the bottom plate 1. The advantage is that the support frame 13 supporting the motor 10 and the pump case 2 are directly installed on the upper surface of the base plate 1, the installation and assembly process can be simplified, since they share the same basic platform, they can be more easily aligned and fixed on the base plate 1, the adjustment and calibration work in the assembly process can be reduced, the stability and rigidity of the whole system can be increased, the base plate 1 serves as a stable supporting surface, the weight and vibration force of the motor 10 and the pump case 2 can be effectively dispersed and carried, the deformation and shaking of the structure can be reduced, and the support frame 13 supporting the motor 10 and the pump case 2 are installed on the upper surface of the base plate 1, and the vertical space can be effectively utilized.

Specifically, a rubber pad 18 is installed at the bottom of the base plate 1, and the rubber pad 18 is glued to the lower surface of the base plate 1. The advantage is that rubber pad 18 has good elasticity and cushioning ability, can absorb and reduce vibration and impact effectively, and rubber pad 18 has good anti-skidding ability, can increase the frictional force between bottom plate 1 and the ground, through gluing rubber pad 18 at the lower surface of bottom plate 1, can provide more firm contact surface, reduces the slip and the removal of bottom plate 1 subaerial, and this helps improving stability and the security of equipment, prevents the unexpected accident that equipment leads to because of the slip in the operation, and rubber pad 18 can absorb and keep apart the energy of vibration effectively to reduce the noise propagation that the vibration produced.

In use, the oil inlet pipe 4 is connected with other oil tank equipment, the motor 10 drives the second gear 11 arranged on the output shaft to rotate through starting the motor 10, and simultaneously drives the first gear 9 meshed with the motor 10 to rotate, the first gear 9 and the second gear 11 rotate to generate actions of sucking and discharging engine oil, when the gears rotate, a low pressure area is created by the gears, the engine oil is sucked into the pump box 2 and then is conveyed into the engine through an oil pipe, as the inner wall of the pump box 2 is provided with the sealing gasket 16, the sealing gasket 16 forms an effective seal between the pump box 2 and other adjacent parts to prevent the engine oil from leaking, the engine oil leakage can lead to oil pressure drop, insufficient lubrication and overheating and abrasion of mechanical parts, the sealing gasket 16 can ensure that the engine oil keeps normal circulation in the pump box 2, if the leakage exists, the engine oil can run off from the leakage position, the oil quantity in the pump box 2 is reduced, the air content in the pump box 2 is increased, the suction efficiency of the pump is reduced, cavitation is possibly caused, when the engine stops running or the oil pressure is reduced, the backflow prevention valve 17 is closed, the engine oil is prevented from flowing back into the oil return box or other systems in the oil inlet pipe 4, so that the lubricating system of the engine can be kept in a normal working state, the existence of the backflow prevention valve 17 can help to maintain the stable oil pressure of the lubricating system of the engine, the engine oil can be prevented from flowing back into the oil tank after the engine stops running, the loss of the oil and the air suction of the lubricating system are avoided, the supporting frame 13 supporting the motor 10 and the pump box 2 are directly arranged on the upper surface of the bottom plate 1, the installation and assembly process can be simplified, the same basic platform is shared, the engine oil can be more easily aligned and fixed on the bottom plate 1, the adjustment and calibration work in the assembly process is reduced, the stability and rigidity of the whole system can be increased, the rubber pad 18 is arranged at the bottom of the bottom plate 1, the rubber pad 18 has good anti-slip performance, the friction force between the bottom plate 1 and the ground can be increased, and the vibration energy can be effectively absorbed and isolated, so that the noise transmission caused by the vibration is reduced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an oil pump, includes bottom plate, its characterized in that: the right side installation pump box of bottom plate, the oil inlet is seted up to the front end of pump box, the oil inlet pipe is installed to the inner wall of oil inlet, the oil-out is seted up to the back of pump box, the oil outlet pipe is installed to the inner wall of oil-out, the inner wall installation bearing of pump box left and right sides, the inner wall installation bull stick of bearing, the surface mounting first gear of bull stick, the left side installation motor of pump box, the second gear is installed to the output shaft of motor, the externally mounted protective housing of motor, the bottom erection bracing frame of protective housing, radiator fan is installed in the left side of protective housing, the top installation handle of protective housing.

2. The oil pump of claim 1, wherein: the first gear and the second gear are positioned inside the pump box, and the first gear and the second gear are meshed.

3. The oil pump of claim 1, wherein: sealing gaskets are arranged on the inner wall of the pump box.

4. The oil pump of claim 1, wherein: and the backflow prevention valve is arranged in the oil inlet pipe.

5. The oil pump of claim 1, wherein: the support frame is located the left side of bottom plate, the support frame with the upper surface at the bottom plate is all installed to the pump box.

6. The oil pump of claim 1, wherein: the bottom of the bottom plate is provided with a rubber pad, and the rubber pad is glued on the lower surface of the bottom plate.