CN215764532U - Shock absorber oil pump - Google Patents

Abstract

The utility model provides a shock absorber oil pump, which belongs to the technical field of oil pumps and comprises an oil pump body, wherein the oil pump body is positioned in a shock absorption cylinder; a plurality of first connecting ends are arranged on the inner wall of the damping cylinder along the circumferential direction of the damping cylinder, second connecting ends corresponding to the first connecting ends are uniformly arranged on the side wall of the oil pump body along the circumferential direction of the damping cylinder, and the first connecting ends are connected with the second connecting ends through first damping springs; a plurality of fixed ends are arranged on the outer side of the damping cylinder along the circumferential direction of the damping cylinder, and the fixed ends are fixedly connected with a fixed disc; the inner diameter of the damping cylinder is equal to the diameter of the damping hole, and the axis of the damping hole is collinear with the axis of the damping cylinder; the end part of a driving shaft of the oil pump body is positioned at the center of the damping hole. The utility model solves the problems that when a driving gear on an engine camshaft rotates, stress concentration can be generated on a driving gear shaft, and when the torque borne by the driving gear shaft is larger, the internal parts of an oil pump are worn and even broken, so that the whole oil pump is damaged.

Description

Shock absorber oil pump

The technical field is as follows:

the utility model belongs to the technical field of oil pumps, and particularly relates to a shock absorber oil pump.

Background art:

oil pump in a lubrication system, oil may be forced from the sump to devices of the engine moving parts. Oil pumps used in automobile engines are generally of a gear type and a rotor type. The two oil pumps have the same working principle, change low-pressure oil into high-pressure oil by using volume change, and are characterized by simple structure, reliable operation and convenient manufacture and repair. The driving gear on the engine camshaft drives the transmission gear of the engine oil pump to rotate the driving gear fixed on the driving gear shaft, so as to drive the driven gear to rotate in the opposite direction, and the engine oil is delivered to the oil outlet cavity from the oil inlet cavity along the tooth gap and the pump wall. The oil inlet cavity forms low pressure to generate suction force, so that the engine oil in the oil bottom shell is sucked into the oil cavity. Since the driving and driven gears are continuously rotated, the oil is continuously pressed to the friction surfaces of the moving parts of the engine.

A key groove is formed in a driving gear shaft of the oil pump, a key is arranged in the key groove, and a driving gear on an engine camshaft is connected with the driving gear shaft through the key. When an engine works, the generated vibration often drives the oil pump to vibrate together, and because the key slot is formed in the driving gear shaft, when the driving gear on the engine camshaft rotates, stress concentration can be generated on the driving gear shaft, and when the torque borne by the driving gear shaft is large, the internal parts of the oil pump are worn or even broken, so that the whole oil pump is damaged.

The utility model has the following contents:

the utility model provides an oil pump, which aims to solve the problems that when an engine works, the generated vibration often drives the oil pump to vibrate together, and because a key groove is formed in a driving gear shaft, when a driving gear on an engine camshaft rotates, stress concentration can be generated on the driving gear shaft, and when the torque borne by the driving gear shaft is large, internal parts of the oil pump are worn or even broken, so that the whole oil pump is damaged.

The embodiment of the utility model provides an oil pump, which comprises an oil pump body, wherein the oil pump body is positioned in a damping cylinder; a plurality of first connecting ends are uniformly arranged on the inner wall of the damping cylinder along the circumferential direction of the damping cylinder, second connecting ends corresponding to the first connecting ends are uniformly arranged on the side wall of the oil pump body along the circumferential direction of the damping cylinder, and the first connecting ends are connected with the second connecting ends through first damping springs; a plurality of fixed ends are uniformly arranged on the outer side of the damping cylinder along the circumferential direction of the damping cylinder, the fixed ends are fixedly connected with a fixed disc, and damping holes are formed in the middle of the fixed disc; the inner diameter of the shock absorption cylinder is equal to the diameter of the shock absorption hole, and the axis of the shock absorption hole is collinear with the axis of the shock absorption cylinder; the end part of a driving shaft of the oil pump body is positioned at the center of the damping hole.

In some embodiments, a closing cover is arranged at one end of the shock absorption barrel, which is far away from the fixed disk.

In some embodiments, the first connecting ends are uniformly provided with a plurality of groups along the axial direction of the shock-absorbing cylinder; the second connecting end is arranged corresponding to the first connecting end along the axial direction of the shock-absorbing cylinder.

In some embodiments, a plurality of second damping springs are fixedly connected to one side of the oil pump body away from the fixed disk, one end, away from the oil pump body, of each second damping spring is sleeved with a steel ball, and the steel ball abuts against the sealing cover.

In some embodiments, the fixed disc is located on the side surface outside the shock-absorbing cylinder, and a plurality of mounting holes are uniformly arranged along the circumferential direction of the shock-absorbing cylinder.

In some embodiments, the fixing end is fixedly connected to the fixing plate by a bolt.

In some embodiments, the outside of the shock absorbing cylinder is wrapped with soundproof cotton.

The utility model provides a shock absorber oil pump which comprises an oil pump body, wherein the oil pump body is positioned in a shock absorption cylinder; a plurality of first connecting ends are uniformly arranged on the inner wall of the damping cylinder along the circumferential direction of the damping cylinder, second connecting ends corresponding to the first connecting ends are uniformly arranged on the side wall of the oil pump body along the circumferential direction of the damping cylinder, and the first connecting ends are connected with the second connecting ends through first damping springs; a plurality of fixed ends are uniformly arranged on the outer side of the damping cylinder along the circumferential direction of the damping cylinder, the fixed ends are fixedly connected with a fixed disc, and damping holes are formed in the middle of the fixed disc; the inner diameter of the shock absorption cylinder is equal to the diameter of the shock absorption hole, and the axis of the shock absorption hole is collinear with the axis of the shock absorption cylinder; the end part of a driving shaft of the oil pump body is positioned at the center of the damping hole. When the engine generates vibration, the first damping spring in the damping cylinder counteracts partial vibration of the oil pump body. The utility model solves the problems that when an engine works, the generated vibration often drives the oil pump to vibrate together, and because the key slot is arranged on the driving gear shaft, when the driving gear on the engine camshaft rotates, stress concentration can be generated on the driving gear shaft, and when the torque borne by the driving gear shaft is larger, the internal parts of the oil pump are worn and even broken, so that the whole oil pump is damaged.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Description of the drawings:

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

FIG. 1 is a schematic view of a shock absorber oil pump according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an internal structure of a shock absorber oil pump according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 1;

FIG. 4 is an enlarged view at B in FIG. 2;

reference numerals: 1. an oil pump body; 2. a damper cylinder; 3. a first connection end; 4. a second connection end; 5. a first damping spring; 6. a fixed end; 7. fixing the disc; 8. a shock absorbing hole; 9. a closure cap; 10. a second damping spring; 11. steel balls; 12. and (7) installing holes.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the specific embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.

As shown in fig. 1 and fig. 3, an embodiment of the utility model provides a shock absorber oil pump, which includes an oil pump body 1, where the oil pump body 1 is located in a shock-absorbing cylinder 2; a plurality of first connecting ends 3 are uniformly arranged on the inner wall of the damping cylinder 2 along the circumferential direction of the damping cylinder 2, second connecting ends 4 corresponding to the first connecting ends 3 are uniformly arranged on the side wall of the oil pump body 1 along the circumferential direction of the damping cylinder 2, and the first connecting ends 3 are connected with the second connecting ends 4 through first damping springs 5; a plurality of fixed ends 6 are uniformly arranged on the outer side of the damping cylinder 2 along the circumferential direction of the damping cylinder 2, the fixed ends 6 are fixedly connected with a fixed disc 7, and the middle part of the fixed disc 7 is provided with a damping hole 8; the inner diameter of the shock absorption cylinder 2 is equal to the diameter of the shock absorption hole 8, and the axis of the shock absorption hole 8 is collinear with the axis of the shock absorption cylinder 2; the end of the driving shaft of the oil pump body 1 is positioned at the center of the damping hole 8.

The oil pump of the shock absorber provided by the utility model is fixedly arranged on an engine or other parts around the engine through a fixed disc 7. When the engine works, the engine continuously generates vibration, the vibration can be transmitted to the fixed disc 7 through contact, the vibration is transmitted to the damping cylinder 2, the damping cylinder 2 is internally connected with the oil pump body 1 through the first connecting end 3, the first damping spring 5 and the second connecting end 4, the first damping spring 5 plays a role at the moment, the plurality of first damping springs 5 are influenced by the vibration and can be extruded, the first damping spring 5 of the rest part can be stretched, and the vibration of the oil pump body 1 is reduced. If vibration in the direction perpendicular to the plane of the fixed disc 7 occurs, the first damping spring 5 stretches laterally, so that the vibration of the oil pump body 1 is relieved. It should be noted that the oil pump body 1 in the present invention may have a cylindrical structure, or may have other irregular structures, and the shape of the oil pump body 1 is not specifically limited in the present invention.

As shown in fig. 2, the end of the shock-absorbing cylinder 2 remote from the fixed disk 7 is provided with a closing cap 9. The closed cover 9 can isolate the noise generated by the vibration of the oil pump body 1 at a part of the machine, and simultaneously prevent the oil pump body 1 from moving out of the damping cylinder 2 due to the large vibration, so that the oil pump body 1 is prevented from colliding with other parts.

A plurality of groups of the first connecting ends 3 are uniformly arranged along the axial direction of the damping cylinder 2; the second connecting end 4 is arranged along the axial direction of the shock-absorbing cylinder 2 and corresponds to the first connecting end 3. The multiple groups of the first connecting end 3, the first damping spring 5 and the second connecting end 4 are beneficial to uniformly buffering and damping vibration in all directions.

As shown in fig. 4, one side of the oil pump body 1, which is away from the fixing plate 7, is fixedly connected with a plurality of second damping springs 10, one end, which is away from the oil pump body 1, of each second damping spring 10 is sleeved with a steel ball 11, and the steel ball 11 abuts against the sealing cover 9. When vibration parallel to the axial direction of the shock tube 2 is generated, the second damping spring 10 can prevent the oil pump body 1 from colliding with the closing cover 9, and simultaneously play a role in buffering and damping in the axial direction of the shock tube 2. The steel ball 11 can roll in the end part of the second damping spring 10, and the part of the steel ball 11, which is positioned outside the second damping spring 10, can roll on the side surface of the closing cover 9 in any direction, so that the vibration transmitted in any direction can be buffered when the oil pump of the utility model is used.

As shown in fig. 1, the fixing plate 7 is located on the outer side surface of the damper cylinder 2, and a plurality of mounting holes 12 are uniformly formed along the circumferential direction of the damper cylinder 2. The oil pump of the shock absorber provided by the utility model can be fixed on the engine or other parts on the periphery of the engine through bolts penetrating through the mounting holes 12.

The fixed end 6 is fixedly connected with a fixed disc 7 through a bolt. The oil pump body 1 is taken out by unscrewing the bolts, so that the oil pump body 1 is convenient to overhaul and maintain at the later stage.

The outside of the damper cylinder 2 is wrapped with soundproof cotton. The oil pump body 1 still can produce vibrations, and vibrations can produce the noise, and the soundproof cotton can effectively isolated the noise, provides a good service environment.

The technical means disclosed by the scheme of the utility model are not limited to the technical means disclosed by the technical means, and also comprise the technical scheme formed by equivalent replacement of the technical features. The present invention is not limited to the details given herein, but is within the ordinary knowledge of those skilled in the art.

Claims (7)

1. A shock absorber oil pump which is characterized in that: the oil pump comprises an oil pump body (1), wherein the oil pump body (1) is positioned in a damping cylinder (2); a plurality of first connecting ends (3) are uniformly arranged on the inner wall of the damping cylinder (2) along the circumferential direction of the damping cylinder (2), second connecting ends (4) corresponding to the first connecting ends (3) are uniformly arranged on the side wall of the oil pump body (1) along the circumferential direction of the damping cylinder (2), and the first connecting ends (3) are connected with the second connecting ends (4) through first damping springs (5); a plurality of fixed ends (6) are uniformly arranged on the outer side of the damping cylinder (2) along the circumferential direction of the damping cylinder (2), the fixed ends (6) are fixedly connected with a fixed disc (7), and a damping hole (8) is formed in the middle of the fixed disc (7); the inner diameter of the shock-absorbing cylinder (2) is equal to the diameter of the shock-absorbing hole (8), and the axis of the shock-absorbing hole (8) is collinear with the axis of the shock-absorbing cylinder (2); the end part of the driving shaft of the oil pump body (1) is positioned at the center of the damping hole (8).

2. The shock absorber oil pump of claim 1, wherein: and a sealing cover (9) is arranged at one end of the damping cylinder (2) far away from the fixed disc (7).

3. The shock absorber oil pump of claim 1, wherein: a plurality of groups of the first connecting ends (3) are uniformly arranged along the axial direction of the damping cylinder (2); the second connecting end (4) is arranged along the axial direction of the shock-absorbing cylinder (2) and corresponds to the first connecting end (3).

4. The shock absorber oil pump of claim 2, wherein: one side, far away from the fixed disk (7), of the oil pump body (1) is fixedly connected with a plurality of second damping springs (10), one end, far away from the oil pump body (1), of each second damping spring (10) is sleeved with a steel ball (11), and the steel balls (11) are abutted to the sealing cover (9).

5. The shock absorber oil pump of claim 1, wherein: the fixed disc (7) is located on the outer side face of the damping cylinder (2), and a plurality of mounting holes (12) are uniformly formed in the circumferential direction of the damping cylinder (2).

6. The shock absorber oil pump of claim 1, wherein: the fixed end (6) is fixedly connected with the fixed disc (7) through a bolt.

7. The shock absorber oil pump of claim 1, wherein: the outside of the shock absorption cylinder (2) is coated with soundproof cotton.

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