CN220378790U - Vacuum pump damping washer, vacuum pump damping mechanism and vehicle - Google Patents

Abstract

The utility model relates to the technical field of vehicle parts and provides a vacuum pump vibration damping gasket, a vacuum pump vibration damping mechanism and a vehicle, wherein the vacuum pump vibration damping gasket comprises a vibration damping gasket body, a groove and a through hole are formed in the vibration damping gasket body, the groove and the through hole are arranged along the axial direction of the vibration damping gasket body and are coaxially arranged, a first clamping groove and an opening are formed in the groove wall of one side, facing the through hole, of the groove, the first clamping groove is arranged around the opening and is used for being clamped with one end of a spring, and the groove and the through hole are communicated at the opening. Therefore, the spring can be fixed at the first clamping groove in the vibration damping gasket, and high coaxiality between the spring seat and the vibration damping gasket is ensured, so that impact between the spring seat and the vibration damping gasket in the axial direction perpendicular to the vibration damping gasket is reduced.

Description

Vacuum pump damping washer, vacuum pump damping mechanism and vehicle

Technical Field

The utility model relates to the technical field of vehicle parts, in particular to a vacuum pump vibration damping washer, a vacuum pump vibration damping mechanism and a vehicle.

Background

Vacuum pumps are devices for generating vacuum, and are widely used in brake systems and steering systems of vehicles. The vacuum pump is usually installed on a vehicle body component by adopting a bracket, when vibration occurs, for example, vibration generated by the vacuum pump during operation is generated, for example, vibration generated by the bracket during running of a vehicle is generated, and large impact sound is easily generated at the connecting pin of the vacuum pump to form large noise, so that a vibration reduction mechanism is usually installed between the connecting pin of the vacuum pump and the bracket to realize vibration reduction and noise reduction.

At present, the vibration reduction mechanism of the vacuum pump mainly comprises a tightening screw, a spring seat, a supporting spring, a vibration reduction rubber pad and a fixing screw, wherein a connecting foot of the vacuum pump is in threaded connection with the lower part of the fixing screw, the upper part of the fixing screw is in threaded connection with the lower part of the tightening screw, the spring seat is sleeved on the upper part of the tightening screw, the spring is sleeved on the upper part of the spring seat, the vibration reduction rubber pad is sleeved on the lower part of the spring seat, and the vibration reduction rubber pad is fixed on a bracket connected with a vehicle body part in a clamping manner.

However, since the spring is not effectively fixed in the vibration-damping rubber pad, uneven stress is likely to occur due to the inclination of the spring when the screw is screwed down to compress the spring seat, and the spring seat is not coaxial with the vibration-damping rubber pad. When vibration occurs, large impact sound is easily generated between the spring and the spring seat and between the spring and the vibration-damping rubber pad, and noise is formed.

Disclosure of Invention

The utility model solves the problems that: how to reduce the impact sound generated at the connection part of the vacuum pump connecting pin and the bracket.

In order to solve the problems, the utility model provides a vibration damping washer for a vacuum pump, which comprises a vibration damping washer body, wherein a groove and a through hole are formed in the vibration damping washer body, the groove and the through hole are arranged along the axial direction of the vibration damping washer body and are coaxially arranged, a first clamping groove and an opening are formed in the groove wall of one side, facing the through hole, of the groove, the first clamping groove is arranged around the opening and is used for being clamped with one end of a spring, and the groove and the through hole are communicated at the opening.

Optionally, the through hole includes along the axial of damping packing ring body communicates in proper order first through-hole, second through-hole and third through-hole, first through-hole with the opening intercommunication, the third through-hole with damping packing ring body's external space intercommunication, the open area of first through-hole is followed first through-hole connect in the one end of second through-hole to first through-hole keep away from in the one end of second through-hole is decreased progressively, the open area of third through-hole is followed third through-hole connect in the one end of second through-hole to the third through-hole keep away from in the one end of second through-hole is decreased progressively, just the open area of second through-hole with first through-hole intercommunication department equals with the open area of second through-hole with third through-hole intercommunication department.

Optionally, the first through hole and the third through hole are symmetrically arranged at two axial sides of the second through hole.

Optionally, the hole depth of the first and third through holes is greater than the hole depth of the second through hole.

Optionally, the through hole further comprises a fourth through hole and/or a fifth through hole, the fourth through hole and the first through hole are coaxially arranged, the first through hole is communicated with the opening through the fourth through hole, the fifth through hole and the third through hole are coaxially arranged, and the third through hole is communicated with the external space of the vibration reduction gasket body through the fifth through hole.

Optionally, the fourth via has a hole depth smaller than the hole depth of the second via, and/or the fifth via has a hole depth smaller than the hole depth of the second via.

Optionally, a second clamping groove is formed in the outer side wall of the vibration damping gasket body, and the second clamping groove is formed in the circumferential direction of the vibration damping gasket body and is used for being clamped with a mounting bracket of the vacuum pump.

Optionally, the vacuum pump damping washer further includes a first protruding structure and/or a second protruding structure, the first protruding structure is connected to one side of the damping washer body along the axial direction thereof and is used for being abutted to the spring seat, and the second protruding structure is connected to the other side of the damping washer body along the axial direction thereof and is used for being abutted to the base.

In order to solve the problems, the utility model also provides a vacuum pump vibration reduction mechanism which comprises the vacuum pump vibration reduction gasket.

In order to solve the above problems, the present utility model also provides a vehicle including the vacuum pump vibration damping washer as described above, or including the vacuum pump vibration damping mechanism as described above.

Compared with the prior art, the utility model has the following beneficial effects:

according to the vibration damping washer of the vacuum pump, the groove and the through hole are formed in the vibration damping washer body, and the opening is formed in the groove wall of one side, facing the through hole, of the groove, so that the groove and the through hole are communicated at the opening, and a through hole structure penetrating through the vibration damping washer body along the axial direction of the vibration damping washer body is formed, so that a spring seat and a compression screw can be penetrated; simultaneously, through set up first draw-in groove on the cell wall of one side of recess towards the through-hole, in the recess is located to the one end with the spring in the time of the assembly, and joint in first draw-in groove department, thereby fix the spring in the recess of damping packing ring, like this, can guarantee when holding down screw compresses tightly the spring holder that the spring does not take place or less take place the slope, make the spring holder atress even, thereby guaranteed to have higher axiality between spring holder and the damping packing ring, can effectively reduce the impact in the axial of perpendicular to damping packing ring between spring holder and the damping packing ring, and then reduce the impact sound that vacuum pump connecting foot and leg joint department produced.

Drawings

FIG. 1 is a schematic cross-sectional view of a vibration damping washer for a vacuum pump according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional view of a vibration damping mechanism of a vacuum pump according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a vibration damping washer body; 11. a groove; 12. a through hole; 121. a first through hole; 122. a second through hole; 123. a third through hole; 124. a fourth through hole; 125. a fifth through hole; 13. a first clamping groove; 14. an opening; 15. a second clamping groove; 2. a first bump structure; 3. a second bump structure;

10. a vibration damping washer; 20. a base; 30. a compression screw; 40. a spring seat; 50. and (3) a spring.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

The Z-axis in the drawing represents the vertical direction, i.e., the up-down position, and the forward direction of the Z-axis (i.e., the arrow of the Z-axis points) represents the up direction, and the reverse direction of the Z-axis represents the down direction; it should also be noted that the foregoing Z-axis is provided merely for convenience of description and to simplify the description and is not to be construed as indicating or implying that the apparatus or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

As shown in fig. 1 and 2, an embodiment of the present utility model provides a vibration damping washer for a vacuum pump (hereinafter referred to as vibration damping washer 10), which includes a vibration damping washer body 1, wherein a groove 11 and a through hole 12 are provided on the vibration damping washer body 1, the groove 11 and the through hole 12 are arranged along an axial direction of the vibration damping washer body 1 and coaxially arranged, a first clamping groove 13 and an opening 14 are provided on a groove wall of a side of the groove 11 facing the through hole 12, the first clamping groove 13 is provided around the opening 14 and is used for clamping with one end of a spring 50, and the groove 11 and the through hole 12 are communicated at the opening 14.

Specifically, the groove 11 is generally in an annular groove structure and is located above the through hole 12, the vibration-damping washer body 1, the groove 11 and the through hole 12 are coaxially arranged, the notch of the groove 11 is upward and communicated with the external space of the vibration-damping washer body 1, the groove bottom of the groove 11 (i.e. the groove wall of the groove 11 facing one side of the through hole 12) is provided with a first clamping groove 13 and an opening 14, the upper end of the through hole 12 is communicated with the groove 11 at the opening 14, the lower end of the through hole 12 is communicated with the external space of the vibration-damping washer body 1, the groove 11 and the through hole 12 form a through hole structure penetrating through the vibration-damping washer body 1 along the axial direction of the vibration-damping washer body 1 at the opening 14, so that the spring seat 40 and the compression screw 30 penetrate through, and the lower end of the spring 50 is inserted into the groove 11 and clamped at the first clamping groove 13.

In this embodiment, by providing the groove 11 and the through hole 12 on the vibration damping washer body 1 and providing the opening 14 on the groove wall of the side of the groove 11 facing the through hole 12 so that the groove 11 and the through hole 12 communicate at the opening 14, a through hole structure penetrating through the vibration damping washer body 1 in the axial direction of the vibration damping washer body 1 is formed for penetrating, for example, the spring seat 40 and the compression screw 30; meanwhile, the first clamping groove 13 is formed in the groove wall of one side, facing the through hole 12, of the groove 11, so that one end of the spring 50 is inserted into the groove 11 during assembly and clamped at the first clamping groove 13, and therefore the spring 50 is fixed in the groove 11 of the vibration damping washer 10, in this way, the spring 50 is prevented or less inclined when the compression screw 30 compresses the spring seat 40, the spring seat 40 is uniformly stressed, high coaxiality between the spring seat 40 and the vibration damping washer 10 is guaranteed, impact between the spring seat 40 and the vibration damping washer 10 in the axial direction perpendicular to the vibration damping washer 10 can be effectively reduced, and impact sound generated at the joint of a connecting pin and a bracket of a vacuum pump is further reduced.

Alternatively, as shown in conjunction with fig. 1, the through hole 12 includes a first through hole 121, a second through hole 122 and a third through hole 123 which are sequentially communicated in the axial direction of the vibration damping washer body 1, the first through hole 121 is communicated with the opening 14, the third through hole 123 is communicated with the external space of the vibration damping washer body 1, the open area of the first through hole 121 decreases from one end of the first through hole 121 connected to the second through hole 122 to one end of the first through hole 121 far away from the second through hole 122, the open area of the third through hole 123 decreases from one end of the third through hole 123 connected to the second through hole 122 to one end of the third through hole 123 far away from the second through hole 122, and the open area at the place where the second through hole 122 is communicated with the first through hole 121 and the open area at the place where the second through hole 122 is communicated with the third through hole 123 are equal.

Specifically, the first through hole 121, the second through hole 122, and the third through hole 123 are disposed in order from top to bottom and communicate in order, and the cross sections of the first through hole 121, the second through hole 122, and the third through hole 123 are generally circular, although in other examples, the cross sections of the first through hole 121, the second through hole 122, and the third through hole 123 may be elliptical, rectangular, or the like. For convenience of description, the cross-sections of the first through hole 121, the second through hole 122, and the third through hole 123 are exemplified herein as circles. The first through hole 121 has a truncated cone structure with a small upper end opening and a large lower end opening, the third through hole 123 has a truncated cone structure with a small upper end opening and a large lower end opening, and the opening area of the large end of the first through hole 121 is equal to the opening area of the large end of the third through hole 123, for example, the apertures of the large end of the first through hole 121 and the large end of the third through hole 123 may be set to 14mm, and the apertures of the small end of the first through hole 121 and the small end of the third through hole 123 may be set to 11mm; in the longitudinal section of the second through hole 122, the hole wall of the second through hole 122 may be a vertical line segment, as shown in fig. 1, where the second through hole 122 is a cylindrical hole, and the hole wall of the second through hole 122 may also be an arc protruding from the inner side of the second through hole 122 toward the outer side (i.e. the center of the arc is located in the second through hole 122), where the second through hole 122 has a hole structure similar to a drum shape, which is not limited herein specifically.

In this embodiment, the open area of the first through hole 121 is reduced from the end of the first through hole 121 connected to the second through hole 122 to the end of the first through hole 121 far from the second through hole 122, so that the first through hole 121 is in a hole structure with a small upper end opening and a large lower end opening, and the open area of the third through hole 123 is reduced from the end of the third through hole 123 connected to the second through hole 122 to the end of the third through hole 123 far from the second through hole 122, so that the third through hole 123 is in a hole structure with a large upper end opening and a small lower end opening, and meanwhile, the open area of the second through hole 122 at the position where the second through hole 122 is communicated with the first through hole 121 is equal to the open area of the second through hole 122 at the position where the third through hole 123 is communicated with the second through hole 122, so that the whole through hole 12 is in a generally concave structure.

Alternatively, as shown in conjunction with fig. 1, the first through hole 121 and the third through hole 123 are symmetrically disposed at both sides of the second through hole 122 in the axial direction. So as to facilitate processing and manufacturing.

Alternatively, as shown in connection with fig. 1, the first through hole 121 and the third through hole 123 have a greater hole depth than the second through hole 122.

In this embodiment, if the hole depth of the first through hole 121 and the third through hole 123 is smaller than that of the second through hole 122, the curvature of the hole wall of the through hole 12 may be larger, or the dimension of the through hole 12 in the axial direction may be smaller, so that the vibration damping washer 10 is not easy to deform at the through hole 12 to absorb the vibration transferred from the spring 50. The hole depths of the first through hole 121 and the third through hole 123 are set to be greater than the hole depths of the second through hole 122, for example, the hole depths of the first through hole 121 and the third through hole 123 may be set to 3.5mm, and the hole depths of the second through hole 122 may be set to 3mm, so that the vibration damping washer 10 is deformed at the through hole 12, thereby ensuring that the vibration damping washer 10 can absorb the vibration damping impact force better.

Optionally, as shown in connection with fig. 1, the through hole 12 further includes a fourth through hole 124 and/or a fifth through hole 125, the fourth through hole 124 is coaxially disposed with the first through hole 121, and the first through hole 121 communicates with the opening 14 through the fourth through hole 124, the fifth through hole 125 is coaxially disposed with the third through hole 123, and the third through hole 123 communicates with the external space of the vibration damping washer body 1 through the fifth through hole 125.

In this embodiment, the fourth through hole 124 and/or the fifth through hole 125 are/is usually round holes, the aperture of the fourth through hole 124 is the same as the aperture of the small end of the first through hole 121, and the aperture of the fifth through hole 125 is the same as the aperture of the small end of the third through hole 123. In this way, by providing the fourth through hole 124 and/or the fifth through hole 125, the tool withdrawal is facilitated when the first through hole 121, the second through hole 122, and the third through hole 123 are processed with the tool, thereby improving the convenience of processing the through holes 12.

Optionally, as shown in connection with fig. 1, the fourth via 124 has a smaller hole depth than the second via 122, and/or the fifth via 125 has a smaller hole depth than the second via 122. For example, the hole depth of the second through hole 122 may be set to 3mm, and the hole depth of the fourth through hole 124/fifth through hole 125 may be set to 1.25mm. In this way, the axial size of the damping washer body 1 and even the damping washer 10 can be reduced, the occupied space of the damping washer 10 can be further reduced, the arrangement is convenient, and meanwhile, the cost can be reduced.

Optionally, as shown in fig. 1, a second clamping groove 15 is formed on the outer side wall of the damping washer body 1, and the second clamping groove 15 is disposed along the circumferential direction of the damping washer body 1 and is used for being clamped with a mounting bracket of the vacuum pump.

In this embodiment, the second clamping groove 15 is usually an annular groove, and the mounting bracket of the vacuum pump is usually provided with a mounting hole, so that the mounting of the vibration damping washer 10 on the mounting bracket is fixed by clamping the second clamping groove 15 on the vibration damping washer body 1 with the mounting hole on the mounting bracket, and the structure is simple and the operation is convenient.

Optionally, as shown in connection with fig. 1, the damping washer 10 further includes a first protrusion structure 2 and/or a second protrusion structure 3, where the first protrusion structure 2 is connected to one side of the damping washer body 1 along its axial direction and is used to abut against the spring seat 40, and the second protrusion structure 3 is connected to the other side of the damping washer body 1 along its axial direction and is used to abut against the base 20.

In this embodiment, the first bump structure 2 and the second bump structure 3 are generally integrally formed with the vibration damping washer body 1, and the materials of the first bump structure 2 and the second bump structure 3 are generally the same as the vibration damping washer body 1, and are all made of rubber. The first bump structures 2 are generally disposed at the top of the vibration damping washer body 1 and are generally disposed in plurality, and the plurality of first bump structures 2 are uniformly disposed around the groove 11, and the second bump structures 3 are generally disposed at the bottom of the vibration damping washer body 1 and are also generally disposed in plurality, and the plurality of second bump structures 3 are uniformly disposed around the fifth through hole 125. When assembled, the second protrusion 3 abuts against the base 20, and a space is provided between the upper end of the spring seat 40 and the first protrusion 2. In this way, by providing the first protrusion structure 2 at the top of the damping washer body 1 and/or providing the second protrusion structure 3 at the bottom of the damping washer body 1, when vibration occurs, the damping washer 10 vibrates up and down with respect to the spring seat 40, and during the vibration, the damping washer 10 collides with the spring seat 40 through the first protrusion structure 2 and collides with the base 20 through the second protrusion structure 3, so that the collision area between the damping washer 10 and the spring seat 40 and between the damping washer 10 and the base 20 is reduced, thereby further reducing the impact sound.

Another embodiment of the present utility model, as shown in conjunction with fig. 2, provides a vacuum pump vibration reduction mechanism including a vacuum pump vibration reduction gasket as described above.

In this embodiment, the vacuum pump damping mechanism includes a base 20, a damping washer 10 (i.e. the above-mentioned vacuum pump damping washer), a compression screw 30, a spring seat 40 and a spring 50, one end of the base 20 is connected with the compression screw 30, the other end of the base 20 is used for being connected with the connecting pin of the vacuum pump in a threaded manner, the spring seat 40 is sleeved on the compression screw 30, one end of the spring seat 40 is abutted with the base 20, the other end is abutted with the nut of the compression screw 30, the damping washer 10 and the spring 50 are respectively sleeved on the spring seat 40, the spring seat 40 is located on one side of the base 20 facing the damping washer 10, a first clamping groove 13 is arranged in the damping washer 10, one end of the spring 50 is clamped in the first clamping groove 13, the other end is connected with the spring seat 40, a second clamping groove 15 is arranged on the outer side wall of the damping washer 10, and the mounting bracket of the vacuum pump is clamped with the damping washer 10 at the second clamping groove 15. In addition, the beneficial effects of the vacuum pump vibration damping mechanism in this embodiment compared with the prior art are the same as those of the vacuum pump vibration damping washer described above, and the description thereof will not be repeated here.

Still another embodiment of the present utility model provides a vehicle comprising a vacuum pump vibration dampening washer as described above, or comprising a vacuum pump vibration dampening mechanism as described above.

The beneficial effects of the vehicle in this embodiment with respect to the prior art are the same as those of the vacuum pump vibration damping washer described above, and will not be described here again.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The utility model provides a vacuum pump damping washer, its characterized in that, includes damping washer body (1), be equipped with recess (11) and through-hole (12) on damping washer body (1), recess (11) with through-hole (12) are followed the axial arrangement of damping washer body (1) is coaxial to be set up, just recess (11) orientation be equipped with first draw-in groove (13) and opening (14) on the cell wall of one side of through-hole (12), first draw-in groove (13) are around opening (14) setting to be used for with the one end joint of spring (50), recess (11) with through-hole (12) are in opening (14) department intercommunication.

2. Vacuum pump damping washer according to claim 1, characterized in that the through hole (12) comprises a first through hole (121), a second through hole (122) and a third through hole (123) which are communicated in sequence along the axial direction of the damping washer body (1), the first through hole (121) is communicated with the opening (14), the third through hole (123) is communicated with the external space of the damping washer body (1), the open area of the first through hole (121) is decreased from the end of the first through hole (121) connected with the second through hole (122) to the end of the first through hole (121) far away from the second through hole (122), the open area of the third through hole (123) is decreased from the end of the third through hole (123) connected with the second through hole (122) to the end of the third through hole (123) far away from the second through hole (122), and the open area of the second through hole (122) where the open area of the second through hole (122) is equal to the open area of the second through hole (122).

3. Vacuum pump damping washer according to claim 2, characterized in that the first through hole (121) and the third through hole (123) are symmetrically arranged on both axial sides of the second through hole (122).

4. Vacuum pump damping washer according to claim 2, characterized in that the hole depth of the first through hole (121) and the third through hole (123) is greater than the hole depth of the second through hole (122).

5. Vacuum pump damping washer according to claim 2, characterized in that the through hole (12) further comprises a fourth through hole (124) and/or a fifth through hole (125), the fourth through hole (124) being arranged coaxially with the first through hole (121) and the first through hole (121) being in communication with the opening (14) through the fourth through hole (124), the fifth through hole (125) being arranged coaxially with the third through hole (123) and the third through hole (123) being in communication with the outer space of the damping washer body (1) through the fifth through hole (125).

6. Vacuum pump damping washer according to claim 5, characterized in that the hole depth of the fourth through hole (124) is smaller than the hole depth of the second through hole (122) and/or the hole depth of the fifth through hole (125) is smaller than the hole depth of the second through hole (122).

7. The vibration-damping washer for the vacuum pump according to claim 1, wherein a second clamping groove (15) is formed in the outer side wall of the vibration-damping washer body (1), and the second clamping groove (15) is arranged along the circumferential direction of the vibration-damping washer body (1) and is used for being clamped with a mounting bracket of the vacuum pump.

8. Vacuum pump damping washer according to claim 1, characterized in that it further comprises a first protruding structure (2) and/or a second protruding structure (3), the first protruding structure (2) being connected to one side of the damping washer body (1) in its axial direction and being adapted to abut against a spring seat (40), the second protruding structure (3) being connected to the other side of the damping washer body (1) in its axial direction and being adapted to abut against a seat (20).

9. A vacuum pump vibration damping mechanism comprising a vacuum pump vibration damping washer as claimed in any one of claims 1 to 8.

10. A vehicle comprising a vacuum pump vibration damping washer according to any one of claims 1-8, or comprising a vacuum pump vibration damping mechanism according to claim 9.