阅读说明：本技术 一种汽车机油泵 (Oil pump of automobile ) 是由 周广达 陈存亮 刘涛 于 2021-08-03 设计创作，主要内容包括：本发明涉及一种汽车机油泵,包括：泵体、泵盖、动轴、主动转子、从动转子、调控组件,从动转子旋转设置于容腔内,并套设于主动转子外侧,从动转子与主动转子之间形成多个油腔,当主动转子旋转时,与第一弧形槽连通的油腔逐渐增大,与第二弧形槽连通的油腔逐渐减小,从而能够将油液从进油口A吸入,从出油口B排出,泵体内还开设有环形槽,从动转子上开设有多个与环形槽连通的连接流道,当动轴的转速提高时,调控组件能够增大连接流道与油腔的连接口。本发明的优点有：通过设置摆锤,当机油泵转速达到一定值时,摆锤控制活塞部移动,让油腔内的一部分机油不做功而是通过环形槽流回油腔,使得机油泵泵出的机油流量不变,从而节省能耗。(The invention relates to an oil pump of an automobile, which comprises: the pump body, the pump cover, the moving axis, the initiative rotor, driven rotor, regulation and control subassembly, driven rotor is rotatory to be set up in holding the intracavity, and the initiative rotor outside is located to the cover, form a plurality of oil pockets between driven rotor and the initiative rotor, when the initiative rotor is rotatory, the oil pocket with first arc wall intercommunication crescent, the oil pocket with second arc wall intercommunication reduces gradually, thereby can inhale fluid from oil inlet A, discharge from oil-out B, the ring channel has still been seted up in the pump body, a plurality of runners of being connected with the ring channel intercommunication have been seted up on driven rotor, when the rotational speed of moving axis improves, the regulation and control subassembly can increase the connector of connecting runner and oil pocket. The invention has the advantages that: through the pendulum bob, when the rotating speed of the oil pump reaches a certain value, the pendulum bob controls the piston part to move, so that part of the engine oil in the oil cavity does not work and flows back to the oil cavity through the annular groove, the flow of the engine oil pumped out by the oil pump is unchanged, and the energy consumption is saved.)

1. An automotive oil pump, characterized in that the automotive oil pump comprises:

the pump body is provided with an oil inlet A and an oil outlet B, an inlet flow passage, an outlet flow passage, a first arc-shaped groove and a second arc-shaped groove are formed in the pump body, the inlet flow passage is communicated with the first arc-shaped groove, and the outlet flow passage is communicated with the second arc-shaped groove;

the pump cover is fixedly connected to the pump body, a cavity is formed between the pump cover and the pump body, and the first arc-shaped groove and the second arc-shaped groove are communicated with the cavity;

the moving shaft is rotatably connected to the pump body;

the driving rotor is arranged in the containing cavity and is connected with the moving shaft;

the driven rotor is rotatably arranged in the cavity and sleeved outside the driving rotor, a plurality of oil cavities are formed between the driven rotor and the driving rotor, when the driving rotor rotates, the oil cavities communicated with the first arc-shaped groove are gradually increased, the oil cavities communicated with the second arc-shaped groove are gradually decreased, so that oil can be sucked from the oil inlet A and discharged from the oil outlet B,

an annular groove is also arranged in the pump body, a plurality of connecting flow channels communicated with the annular groove are arranged on the driven rotor, the connecting flow channels are communicated with the oil cavities in a one-to-one correspondence manner,

the automobile oil pump also comprises a regulating and controlling assembly which can control the size of a connecting port between the connecting flow channel and the oil cavity, and when the rotating speed of the moving shaft is increased, the regulating and controlling assembly can enlarge the connecting port between the connecting flow channel and the oil cavity.

2. The automotive oil pump of claim 1, wherein the adjusting and controlling assembly comprises a partition plate, a control frame, a spring, a rotating seat and a pendulum, the partition plate is rotatably connected in the pump cover, the control frame is slidably disposed on the partition plate, the control frame is provided with a plurality of plunger portions, the plunger portions correspondingly extend into the oil cavity one by one and can block the connecting flow channel, the spring is disposed between the control frame and the pump cover to enable the plunger portions to close the connecting flow channel, the rotating seat is rotatably connected to the pump cover, the control frame is further provided with a rotating shaft portion, the rotating shaft portion penetrates through the rotating seat, one end of the pendulum is hinged to the rotating shaft portion, the middle portion of the pendulum is connected with the rotating seat, so that when the rotating shaft portion rotates, the pendulum can be driven to rotate, and the pendulum is subjected to centrifugal force to drive the control frame to rotate along the axial direction of the rotating shaft portion by taking the rotating seat as a supporting point, and is driven to rotate by the pendulum And moving the connecting channel to increase the connecting port of the oil chamber.

3. The vehicle oil pump of claim 2, wherein the control assembly comprises two pendulums symmetrically hinged to the shaft portion.

4. The oil pump of claim 3, wherein the pendulum is provided with a strip-shaped groove, the rotating base is provided with a support block, the support block is slidably disposed in the strip-shaped groove, when the rotating shaft rotates, the pendulum can be driven to turn around a hinge joint with the rotating shaft, and the support block supports the pendulum, so that the pendulum can drive the rotating shaft to move along an axial direction, and further drive the plunger to move, so as to control the size of the connection port connecting the flow passage and the oil chamber.

5. The vehicle oil pump of claim 2, wherein the rotary base has a first abutting ring and a second abutting ring, and the first abutting ring and the second abutting ring abut against both sides of the pump cover, respectively, so that the rotary base can be restricted from sliding in the axial direction.

6. The vehicle oil pump of claim 2, wherein the driving rotor is provided with six protrusions which abut against the inner wall of the driven rotor, so that six oil cavities are formed in the driven rotor.

7. The vehicle oil pump of claim 6, wherein seven grooves are provided in the driven rotor, and the connecting passage is opened at the bottom of the grooves.

8. The automotive oil pump of claim 1, wherein a check valve is disposed in the outlet flow passage to allow oil to flow from the oil outlet B through the outlet flow passage in a single direction from the oil chamber.

Technical Field

The invention relates to the technical field of oil pumps, in particular to an automobile oil pump.

Background

The oil pump is regarded as the conventional corollary equipment of the engine, and the oil pump can increase the oil pressure to a certain pressure and forcibly press and send the oil to the moving surface of each part of the engine. The oil pressure must be ensured within a certain range to ensure that each friction piece is sufficiently lubricated so as not to damage a related pressure-bearing piece, and the oil pump continuously pumps out the oil for each part in the running process of the engine to ensure the normal running of the engine under each working condition. In the prior art, because the oil pumps are directly driven by the engine and are generally quantitative pumps, when the rotating speed of the engine is increased, the flow of the oil pump is increased, so that the oil pressure in an oil channel of the engine is increased, the oil temperature is increased, and the lubricating effect is further influenced; the redundant engine oil pumped by the engine oil pump is useless, so that the effective power of the engine is consumed more, and the engine is more oil-consuming.

Disclosure of Invention

In view of the above, it is desirable to provide an automobile oil pump that addresses the above-mentioned problems.

The invention discloses an automobile oil pump, which comprises: the pump body is provided with an oil inlet A and an oil outlet B, an inlet flow passage, an outlet flow passage, a first arc-shaped groove and a second arc-shaped groove are formed in the pump body, the inlet flow passage is communicated with the first arc-shaped groove, and the outlet flow passage is communicated with the second arc-shaped groove; the pump cover is fixedly connected to the pump body, a cavity is formed between the pump cover and the pump body, and the first arc-shaped groove and the second arc-shaped groove are communicated with the cavity; the moving shaft is rotatably connected to the pump body; the driving rotor is arranged in the containing cavity and is connected with the moving shaft; the automobile oil pump further comprises a regulating and controlling assembly, the size of a connecting port between the connecting flow channel and the oil cavity can be controlled, and when the rotating speed of the moving shaft is increased, the regulating and controlling assembly can increase a connecting port between the connecting flow channel and the oil cavity.

In one embodiment, the adjusting and controlling assembly includes a partition plate, a control frame, a spring, a rotating seat and a pendulum, the partition plate is rotatably connected in the pump cover, the control frame is slidably disposed on the partition plate, the control frame has a plurality of plunger portions, the plunger portions correspondingly extend into the oil cavity one by one and can block the connecting flow channel, the spring is disposed between the control frame and the pump cover to enable the plunger portions to close the connecting flow channel, the rotating seat is rotatably connected to the pump cover, the control frame further has a rotating shaft portion, the rotating shaft portion penetrates through the rotating seat, one end of the pendulum is hinged to the rotating shaft portion, and the middle portion of the pendulum is connected to the rotating seat, so that when the rotating shaft portion rotates, the pendulum can be driven to rotate, the pendulum receives centrifugal force to drive the control frame to move along the axis direction of the rotating shaft portion by using the rotating seat as a supporting point, thereby enlarging the connecting port connecting the flow passage and the oil chamber.

In one embodiment, the regulating assembly comprises two pendulums which are symmetrically hinged on the rotating shaft part.

In one embodiment, a strip-shaped groove is formed in the pendulum, a supporting block is arranged on the rotating seat, the supporting block is slidably arranged in the strip-shaped groove, when the rotating shaft portion rotates, the pendulum can be driven to turn around a hinge joint with the rotating shaft portion, and the supporting block supports the pendulum, so that the pendulum can drive the rotating shaft portion to move along the axis direction, and further drive the plunger portion to move, and the size of a connecting port for connecting the flow passage and the oil chamber is controlled.

In one embodiment, the rotary seat has a first abutting ring and a second abutting ring, and the first abutting ring and the second abutting ring abut against two sides of the pump cover respectively, so that the rotary seat can be limited from sliding along the axial direction.

In one embodiment, six protrusions are arranged on the driving rotor and abut against the inner wall of the driven rotor, so that six oil cavities are formed in the driven rotor.

In one embodiment, seven grooves are arranged in the driven rotor, and the connecting channel is arranged at the bottom of the grooves.

In one embodiment, a one-way valve is arranged in the outlet flow passage, so that the engine oil can flow out of the oil outlet B from the oil cavity through the outlet flow passage in a one-way mode.

The invention has the advantages that:

1. by using the pendulum bob for control, when the rotating speed of the oil pump reaches a certain value, the pendulum bob controls the piston part to move, so that part of the engine oil in the oil cavity does not work and flows back to the oil cavity through the annular groove, the flow of the engine oil pumped by the oil pump is unchanged, the load of the movable shaft is reduced, and the energy consumption is saved;

2. through the control of the pendulum, when the rotating speed of the engine oil pump reaches a certain value, the pendulum drives the control frame to move, when the speed is higher, a connecting port for connecting the flow channel and the oil cavity is larger, the engine oil can flow back more quickly, so that the flow of the engine oil pump can be stabilized at a certain value, and the control is simple and effective;

3. the oil pump is controlled by matching the pendulum bob and the spring, so that electric control is not needed, simplicity and effectiveness are realized, and the cost is saved.

Drawings

FIG. 1 is a cross-sectional view of an automotive oil pump according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;

fig. 4 is a cross-sectional view of the oil pump of the vehicle provided by the invention when the moving shaft rotates rapidly.

In the figure, a pump body 1, a check valve 11, an inlet flow passage 12, an outlet flow passage 13, a first arc-shaped groove 14, a second arc-shaped groove 15, an annular groove 16, a pump cover 2, a moving shaft 3, a driving rotor 4, an oil chamber 41, a driven rotor 5, a connecting flow passage 51, a control frame 6, a plunger part 61, a rotating shaft part 62, a pendulum 7, a strip-shaped groove 71, a spring 8, a rotating seat 9, a supporting block 91, a first abutting ring 92, a second abutting ring 93 and a partition plate 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, the present invention discloses an oil pump for an automobile, the oil pump for an automobile comprising:

the oil pump comprises a pump body 1, wherein the pump body 1 is provided with an oil inlet A and an oil outlet B, an inlet flow passage 12, an outlet flow passage 13, a first arc-shaped groove 14 and a second arc-shaped groove 15 are formed in the pump body 1, the inlet flow passage 12 is communicated with the first arc-shaped groove 14, and the outlet flow passage 13 is communicated with the second arc-shaped groove 15; the pump cover 2 is fixedly connected to the pump body 1, a cavity is formed between the pump cover and the pump body 1, and the first arc-shaped groove 14 and the second arc-shaped groove 15 are communicated with the cavity; a movable shaft 3 rotatably connected to the pump body 1; the driving rotor 4 is arranged in the containing cavity and is connected with the moving shaft 3; a driven rotor 5 which is rotatably arranged in the containing cavity and sleeved outside the driving rotor 4, a plurality of oil cavities 41 are formed between the driven rotor 5 and the driving rotor 4, when the driving rotor 4 rotates, the oil chamber 41 communicating with the first arc-shaped groove 14 is gradually increased, the oil chamber 41 communicating with the second arc-shaped groove 15 is gradually decreased, so that the oil can be sucked from the oil inlet A and discharged from the oil outlet B, the pump body 1 is also internally provided with an annular groove 16, a plurality of connecting flow passages 51 communicated with the annular groove 16 are formed on the driven rotor 5, the connecting flow passages 51 are communicated with the oil chambers 41 in a one-to-one correspondence manner, the automobile oil pump further comprises a regulating and controlling component which can control the sizes of connecting ports of the connecting flow passages 51 and the oil chambers 41, when the rotating speed of the moving shaft 3 is increased, the regulating and controlling component can increase the connecting port of the connecting flow passage 51 and the oil chamber 41.

Preferably, the adjusting and controlling assembly includes a partition plate 10, a control frame 6, a spring 8, a rotating base 9, and a pendulum 7, the partition plate 10 is rotatably connected in the pump cover 2, the control frame 6 is slidably disposed on the partition plate 10, the control frame 6 has a plurality of plunger portions 61, the plunger portions 61 correspondingly extend into the oil chamber 41 one by one and can block the connection flow passage 51, the spring 8 is disposed between the control frame 6 and the pump cover 2, so that the plunger portions 61 close the connection flow passage 51, the rotating base 9 is rotatably connected to the pump cover 2, the control frame 6 further has a rotating shaft portion 62, the rotating shaft portion 62 penetrates through the rotating base 9, one end of the pendulum 7 is hinged to the rotating shaft portion 62, and the middle portion of the pendulum 7 is connected to the rotating base 9, so that when the rotating shaft portion 62 rotates, the pendulum 7 can be driven to rotate, the pendulum bob 7 receives centrifugal force to act on the rotary seat 9 as a supporting point to drive the control frame 6 to move along the axial direction of the rotating shaft part 62, so that the connecting port for connecting the flow passage 51 and the oil chamber 41 is enlarged.

Preferably, the control assembly comprises two pendulums 7, and the two pendulums 7 are symmetrically hinged on the rotating shaft part 62.

Preferably, a strip-shaped groove 71 is formed in the pendulum 7, a supporting block 91 is arranged on the rotary seat 9, the supporting block 91 is slidably arranged in the strip-shaped groove 71, when the rotating shaft portion 62 rotates, the pendulum 7 can be driven to turn around a hinge joint with the rotating shaft portion 62, and the supporting block 91 supports the pendulum 7, so that the pendulum 7 can drive the rotating shaft portion 62 to move along the axis direction, and further drive the plunger portion 61 to move, so as to control the size of a connecting port for connecting the flow passage 51 with the oil chamber 41.

Preferably, the rotary base 9 has a first abutting ring 92 and a second abutting ring 93, and the first abutting ring 92 and the second abutting ring 93 abut against both sides of the pump cover 2, respectively, so that the sliding of the rotary base 9 in the axial direction can be restricted.

Preferably, six protrusions are arranged on the driving rotor 4, and the protrusions abut against the inner wall of the driven rotor 5, so that six oil cavities 41 are formed in the driven rotor 5.

Preferably, seven grooves are formed in the driven rotor 5, and the connecting channel is formed in the bottom of each groove.

Preferably, a check valve 11 is disposed in the outlet flow passage 13, so that the engine oil can flow out of the oil outlet B from the oil chamber 41 through the outlet flow passage 13 in a one-way manner.

The working mode of the invention is as follows: as shown in fig. 1, at this time, the rotating speed of the moving shaft 3 is slow, the pendulum bob 7 rotates slowly, the centrifugal force applied to the pendulum bob is small, the control frame 6 abuts against the driven rotor 5 under the action of the spring 8, and the plunger 61 closes the connection flow channel 51, so that when the driving rotor 4 rotates, the engine oil can only enter the first arc-shaped groove 14 from the inlet flow channel 12 and then enter the oil chamber 41, and then flow out of the oil outlet B from the second arc-shaped groove 15 through the outlet flow channel 13.

As shown in fig. 4, when the engine speed rises above the preset value, the centrifugal force applied to the pendulum bob 7 increases, so as to drive the control frame 6 to move to the left side against the elastic force of the spring 8, so that the connecting flow passage 51 is communicated with the oil chamber 41, and the engine oil in the oil chamber 41 can be communicated through the connecting flow passage 51 and the annular groove 16, so that the rotation speed of the active rotor 4 is increased, the engine oil can circulate in the engine oil pump, the external output quantity of the engine oil pump is not affected, and the energy consumption of the engine oil pump is reduced.

As the rotation speed is further increased, the centrifugal force applied to the pendulum 7 is further increased, and the communication opening connecting the flow passage 51 and the oil chamber 41 is increased, so that the engine oil can be internally circulated at a higher speed, thereby achieving an effect of limiting the output of the engine oil pump.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.