CN213954229U

CN213954229U - Buffer seat and buffer assembly for gradual change type stroke adjustment damping shock absorber

Info

Publication number: CN213954229U
Application number: CN202022407374.9U
Authority: CN
Inventors: 李国华; 葛文军; 胡兰; 张勇; 李皓龙; 谢毅; 严茂; 凌洁
Original assignee: Chengdu Jiuding Technology Group Co Ltd
Current assignee: Chengdu Jiuding Technology Group Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-08-13
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses a buffer seat and a buffer component for a gradual change type stroke adjustment damping shock absorber, wherein the buffer seat comprises a buffer seat body, two ends of the buffer seat body are movably connected to form an annular structure, and a first oil drainage groove is arranged on the outer circumference of the buffer seat body; one side end face of the buffer seat body is a plane, and at least one second oil drainage groove is formed in the other side end face of the buffer seat body. The utility model discloses well buffering subassembly adopts bearing and cushion seat cooperation setting, sets up the spacing groove structure on the bearing and can carry out stable installation and spacing to the cushion seat to through the mutually supporting between bearing and the cushion seat, realize that shock absorber buffering draining is in order to increase extra damping force when tensile stroke, can drain oil fast when compression stroke in order to avoid producing the damping force, its operation in the shock absorber is reliable and stable, has fine stability and reliability.

Description

Buffer seat and buffer assembly for gradual change type stroke adjustment damping shock absorber

Technical Field

The utility model relates to a shock absorber technical field, in particular to a cushion socket and buffering subassembly that is used for damping shock absorber is adjusted to gradual change formula stroke.

Background

With the increasing requirements on the performances of the automotive suspension, active variable damping shock absorbers, semi-active suspension shock absorbers and passive modified shock absorbers (air spring shock absorbers and special hydraulic structure shock absorbers) have come into force, but the shock absorbers have the problems of complex structure, high production cost and the like, and cannot be widely used.

The shock absorber adopting the gradual change type stroke damping adjusting technology automatically adapts to road condition change to adjust damping through an internal structure, does not need an external controller, and has a function between a passive type and an active type. Because the damping is self-adaptively adjusted through the internal structure, the stability and the reliability of the damping adjusting structure in the shock absorber are higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cushion socket and buffering subassembly for damping shock absorber is adjusted to gradual change formula stroke to improve performances such as stability, the reliability of shock absorber work.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the buffer seat for the gradual change type stroke adjustment damping shock absorber comprises a buffer seat body, wherein the buffer seat body is of an annular structure, and a first oil drainage groove is formed in the outer circumference of the buffer seat body;

one side end face of the buffer seat body is a plane, and at least one second oil drainage groove is formed in the other side end face of the buffer seat body.

In the above technical scheme, further, both ends of the buffer base body are movably connected, both ends of the buffer base body are respectively provided with a matched hook, and both ends of the buffer base body are connected through the hooks.

In the above technical scheme, further, the first oil drainage groove is located at a joint of two ends of the buffer base body, and the first oil drainage groove is formed between the hook at one end of the buffer base body and the hook at the other end of the buffer base body.

In the technical scheme, furthermore, a limiting part is arranged at one side position of the clamping hook at one end of the buffer seat body and used for limiting the movement of the other clamping hook towards the limiting part, and the limiting part is arranged at one side of the buffer seat body, which is far away from the second oil drainage groove.

In the above technical solution, further, at least one third oil drainage groove is provided on the inner circumference of the buffer seat body.

In the technical scheme, furthermore, a plurality of second oil drainage grooves are formed in the end face of the buffer base body along the circumferential direction of the buffer base body, a plurality of third oil drainage grooves are formed in the inner circumference of the buffer base body, and the second oil drainage grooves and the third oil drainage grooves are arranged in a staggered mode at intervals.

The utility model discloses in still relate to a buffering subassembly that is used for damping shock absorber is adjusted to gradual change formula stroke, including bearing and cushion socket, be provided with two annular spacing flanges on the bearing relatively, form annular spacing groove between two spacing flanges, the cushion socket cover is established and is located on the bearing spacing inslot, the cushion socket external diameter is greater than the external diameter of spacing flange.

In the above technical scheme, further, the distance between the two limiting flanges is greater than the distance between the two end faces of the buffer seat body.

In the above technical scheme, further, clearance fit is adopted between the buffer seat and the supporting seat.

The utility model discloses the beneficial effect who has:

1) the buffer seat has the advantages of simple overall structure, convenience in machining and forming, convenience in installation and matching of the buffer seat on the supporting seat, and capability of well meeting the requirement of working performance of the shock absorber.

2) The buffer assembly is matched with the supporting seat by adopting the supporting seat, the limiting groove structure is arranged on the supporting seat, the buffer seat can be stably installed and limited, and the buffer oil drainage is buffered to generate extra damping force during the stretching stroke of the shock absorber through the mutual matching action between the supporting seat and the buffer seat; the oil can be quickly drained in the compression stroke to avoid generating damping force; the buffer assembly can stably and reliably run in the shock absorber and has good stability and reliability.

Drawings

Fig. 1 is a schematic view of the structure of the buffer seat of the present invention.

Fig. 2 is a front view of the buffer seat structure of the present invention.

Fig. 3 is a schematic view of the structure of the buffer assembly of the present invention.

Fig. 4 is a schematic cross-sectional view of the buffering assembly of the present invention.

Fig. 5 is a structural schematic diagram of the working state of the buffering assembly on the shock absorber.

In the figure: 100. the oil drain device comprises a buffer seat 101, a buffer seat body 102, a first oil drain groove 103, a second oil drain groove 104, a third oil drain groove 105, a clamping hook 106 and a limiting part;

200. a supporting seat 201, a limiting flange 202 and a limiting groove;

300. working cylinder, 400, piston connecting rod assembly.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

The utility model provides a buffer seat and buffer unit are used for gradual change formula stroke adjustment damping shock absorber, and the size of damping force is adjusted like buffer unit to gradual change formula stroke adjustment damping shock absorber accessible internal mechanism to the change of automatic adaptation road conditions need not external control ware, and the function is between passive form and active.

Example one

As shown in fig. 1 and 2, a cushion seat 100 for a gradual-change type stroke-adjusting damping shock absorber in the present embodiment includes a cushion seat body 101, wherein two ends of the cushion seat body 101 are movably connected to form an annular structure; a first oil drainage groove 102 for oil to drain through is arranged on the outer circumference of the buffer seat body 101; one side end face of the buffer seat body 101 is a plane, and the other side end face is provided with one second oil drainage groove 103 or a plurality of second oil drainage grooves 103, the plurality of second oil drainage grooves are uniformly distributed on the end face of the buffer seat body along the axis of the buffer seat, and the plurality of second oil drainage grooves 103 form a plurality of square notch groove structures on the buffer seat body.

In this embodiment, the two ends of the buffer seat body 101 are respectively provided with a hook 105 structure, and the two ends of the buffer seat body are movably connected through the hook 105 structure. A limiting part 106 is arranged at one side position of the hook 105 at one end of the buffer seat body 101, the limiting part 106 is of a raised step structure, the limiting part 106 is used for limiting the movement of the other hook 105 towards the limiting part, and the limiting part 106 is arranged at one side of the buffer seat body far away from the second oil drainage groove, namely, towards one side of the buffer seat moving towards the compression stroke direction.

As shown in fig. 2, the first oil drainage groove 102 is located at the joint of the two ends of the buffer base body, and the first oil drainage groove 102 is formed between the hook at one end of the buffer base body and the hook at the other end of the buffer base body, so that the structure of the buffer base is simpler, and the buffer base is convenient to form.

A plurality of third oil drainage grooves 104 are formed in the inner circumference of the buffer seat body 101, and the third oil drainage grooves 104 are uniformly distributed on the inner circumference of the buffer seat body along the axis of the buffer seat. The second oil drainage groove 103 and the third oil drainage groove 104 on the buffer base body are respectively arranged at staggered intervals. Set up the fluid flow area of multiplicable buffering subassembly when compression stroke of third draining groove on the circumference of the buffering seat body, increase the oil mass, make the buffering subassembly can play better effect.

Example two

As shown in fig. 3 and 4, the present embodiment is a buffer assembly for a gradual-change stroke-adjusting damping shock absorber, and the buffer assembly includes a buffer base 100 and a supporting base 200, two annular limiting flanges 201 are relatively disposed on the supporting base 200, an annular limiting groove 202 is formed between the two limiting flanges 201, the buffer base 100 is sleeved on the supporting base 200 and is located in the limiting groove 202, the outer diameter of the buffer base 100 is greater than the outer diameter of the limiting flange 201, so that when the buffer assembly enters the diameter-reducing portion of the working cylinder, the buffer base is in sealing fit with the diameter-reducing portion of the working cylinder.

The distance between the two limiting flanges 201 is larger than the distance between the two end faces of the buffer seat body 101, so that when the buffer seat assembly moves in the shock absorber, the buffer seat can move along the axis of the supporting seat. Meanwhile, the two ends of the buffer seat are movably connected by the hooks in a hanging type structure, so that the buffer seat can further conveniently move in the limiting groove on the supporting seat, and the buffer assembly respectively plays different roles in the stretching stroke and the compression stroke of the shock absorber so as to realize the function of the shock absorber.

In this embodiment, the buffer base 100 and the supporting base 200 are in clearance fit, so that a certain gap for oil to pass through is formed between the buffer base and the supporting base.

The following describes the structural and functional features of the damping assembly in conjunction with the specific motion of the damping assembly in the shock absorber:

as shown in FIG. 5, the damping assembly is disposed on the piston and connecting rod assembly 400 of the shock absorber for movement therewith.

When the shock absorber is under the stretching action, the piston connecting rod assembly 400 moves leftwards, when the buffer assembly enters the reducing part of the working cylinder 300, the buffer seat moves rightwards on the supporting seat under the action of the working cylinder, the end face of the buffer seat is matched with the limiting flange on one side, the buffer seat is tightly matched with the working cylinder at the moment, oil in the reducing part of the upper cavity of the working cylinder can only drain oil through the first oil drainage groove, additional damping force is generated on the piston connecting rod assembly, and the damping force of the shock absorber in the stretching stroke is increased.

When the shock absorber receives the compression effect, piston link assembly moves to the right, the buffer seat moves to the left on the supporting seat under the effect of the working cylinder at the moment, the one end of the second oil drainage groove arranged on the buffer seat is matched with the limiting flange on the other side, and at the moment, oil can be drained through the third oil drainage groove, the gap between the buffer seat and the supporting seat, the second oil drainage groove and the first oil drainage groove, so that oil can be drained quickly in the compression stroke, and extra damping force is prevented from being generated in the compression stroke.

The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.

Claims

1. The buffer seat for the gradual change type stroke adjustment damping shock absorber is characterized by comprising a buffer seat body, wherein the buffer seat body is of an annular structure, and a first oil drainage groove is formed in the outer circumference of the buffer seat body;

2. The cushion socket for the gradual-change stroke-adjusting damping shock absorber as claimed in claim 1, wherein two ends of the cushion socket body are movably connected, two ends of the cushion socket body are respectively provided with a matching hook, and two ends of the cushion socket body are connected through the hooks.

3. The cushion socket for the gradual-change stroke-adjusting damping shock absorber as claimed in claim 2, wherein a limiting portion is disposed at a side of the hook at one end of the cushion socket body, the limiting portion is used for limiting the movement of the other hook toward the limiting portion, and the limiting portion is disposed at a side of the cushion socket body away from the second oil drainage groove.

4. The cushion seat for the gradual change type stroke adjustment damping shock absorber as claimed in claim 2, wherein the first oil drainage groove is located at the connection part of the two ends of the cushion seat body, and a first oil drainage groove is formed between the hook at one end of the cushion seat body and the hook at the other end of the cushion seat body.

5. The cushion seat for a gradual stroke tuned damping shock absorber as set forth in claim 1, wherein at least one third oil relief groove is provided on an inner circumference of said cushion seat body.

6. The cushion seat for the gradual change type stroke adjustment damping shock absorber as recited in claim 5, wherein a plurality of second oil drainage grooves are arranged on the end surface of the cushion seat body along the circumferential direction, a plurality of third oil drainage grooves are arranged on the inner circumference of the cushion seat body, and the second oil drainage grooves and the third oil drainage grooves are respectively arranged in a staggered and spaced manner.

7. The buffer assembly for the gradual change type stroke adjustment damping shock absorber is characterized by comprising a supporting seat and the buffer seat as claimed in any one of claims 1 to 6, wherein two annular limiting flanges are oppositely arranged on the supporting seat, an annular limiting groove is formed between the two limiting flanges, the buffer seat is sleeved on the supporting seat and is positioned in the limiting groove, and the outer diameter of the buffer seat is larger than that of the limiting flanges.

8. The cushion assembly for a gradual stroke tuned damping absorber as claimed in claim 7, wherein a spacing between said two stop flanges is greater than a spacing between two end faces of the cushion pan body.

9. The cushion assembly for a tapered jounce adjusting damping shock absorber according to claim 7 or 8, wherein said cushion seat is clearance fitted to said support seat.