Shock absorber structure capable of adjusting rigidity

Abstract

The utility model provides a rigidity-adjustable shock absorber structure which has different rigidities, can be suitable for different working environments and can play a role in effectively limiting and relieving impact. Comprising a sleeve, a vibration reduction part and a supporting part which are sequentially arranged from inside to outside, the supporting part is a sheet metal part, the vibration reduction part is made of vulcanized rubber, the sleeve, the vibration reduction part and the supporting part are connected into an integrated structure in a vulcanized mode, and annular grooves are reserved between the sleeve and the vibration reduction part and between the supporting part and the vibration reduction part. An adjusting ring is installed in the groove between the supporting piece and the vibration reduction piece in a pressing mode, the adjusting ring is made of nylon materials, and the inner diameter of the adjusting ring ranges from 50 mm to 120 mm.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shock absorber technical field, concretely is a stiffness adjusting shock absorber structure. BACKGROUND

[0002] Engineering machinery working environment is bad, vibration and impact often affect the service life of important parts, such as engineering machinery power system (fuel power system or electric drive power system), often need to match appropriate shock absorption and buffering system, but the shock absorber of present use can only be used in the scene of relatively good working environment, once the working environment is relatively bad, engineering parts are more than certain deformation degree, because the stiffness of existing shock absorber is insufficient, so it cannot play the effect of effective limiting and relieving impact. SUMMARY

[0003] In view of the above problem, the utility model provides a stiffness adjusting shock absorber structure, it has different stiffness, can be applicable to different working environment, can play the effect of effective limiting and relieving impact.

[0004] The utility model discloses a stiffness adjusting shock absorber structure, including the sleeve pipe, shock absorber piece, support piece that set gradually from inside to outside, the support piece is sheet metal spare, the material of shock absorber piece is vulcanized rubber, the sleeve pipe, shock absorber piece with the support piece vulcanization connects the integral structure, the sleeve pipe, support piece with the shock absorber piece between all leave annular groove, and the groove between the support piece with the shock absorber piece is pressed and is equipped with the adjusting ring, the material of adjusting ring is nylon material, the inner diameter of adjusting ring is 50mm~120mm.

[0005] Further, the groove is divided into first groove, second groove, the first groove is arranged between the support end of sleeve pipe and shock absorber piece, the second groove is arranged between shock absorber piece and support piece, and the adjusting ring is pressed and mounted in the second groove.

[0006] Further, the outer wall surface of the adjusting ring is attached to the inner wall surface of the second groove, and a spacing is left between the inner wall surface of the adjusting ring and the other inner wall surface of the second groove.

[0007] Further, the outer circumferential surface of the adjusting ring is provided with at least two annular protrusions arranged at intervals, and the annular protrusions are linearly attached to the inner wall surface of the second groove.

[0008] Further, the first groove and the second groove are both V-shaped.

[0009] Further, the upper surface of the shock absorber piece at the sleeve pipe mounting end position is provided with annular third and fourth grooves arranged at intervals, and the upper surface of the shock absorber piece is multi-stepped.

[0010] Further, the upper surface of the damping member is in a three-layer stepped type, and the third groove, the fourth groove and the second groove are sequentially arranged on different layer stepped surfaces of the damping member from top to bottom.

[0011] Further, the width of the third groove is smaller than the width of the fourth groove, and the bottom surfaces of the third groove and the fourth groove are both concave circular arc surfaces.

[0012] The damping absorber has the advantages that the adjusting ring is press-fitted in the groove between the supporting member and the damping member, the adjusting ring with a corresponding inner diameter size can be selected according to the rigidity requirement of an application scene, the damping absorber with different rigidity characteristics can be realized, effective limiting and impact relief can be achieved, and the damping absorber has good use value. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a sectional view of the damping absorber;

[0014] Figure 2 is a top view of the damping absorber;

[0015] Figure 3 is a structure diagram of the adjusting ring in the damping absorber;

[0016] Figure 4 is an assembly structure diagram of the damping absorber;

[0017] Figure 5 is an assembly sectional view of the damping absorber;

[0018] Figure 6 is a force-displacement curve comparison diagram of the damping absorber with the limiting ring and the damping absorber without the limiting ring. DETAILED DESCRIPTION

[0019] As shown in the drawings, Figures 1-6 The damping absorber structure with rigidity adjustment comprises a sleeve 1-1, a damping member 1-3 and a supporting member 1-2 which are sequentially arranged from inside to outside, the supporting member 1-2 is a sheet metal part, the damping member 1-3 is made of thermosetting vulcanized rubber, the sleeve 1-1, the damping member 1-3 and the supporting member 1-2 are vulcanized and connected into an integrated structure, annular grooves are reserved between the sleeve 1-1 and the supporting member 1-2 and between the supporting member 1-2 and the damping member 1-3, an adjusting ring 1-4 is press-fitted in the groove between the supporting member 1-2 and the damping member 1-3, the adjusting ring 1-4 is made of nylon material and is corrosion-resistant and has a higher hardness than rubber, so that the adjusting ring 1-4 is not easily deformed and damaged by the extrusion of the rubber, the inner diameter Φd of the adjusting ring 1-4 is 50mm-120mm, the outer diameter ΦD of the adjusting ring 1-4 is constant, and the inner diameter Φd can be adjusted according to the application scene to realize different rigidity characteristics.

[0020] The groove is divided into a first groove 1-7 and a second groove 1-6, the first groove 1-7 is arranged between the supporting end of the sleeve 1-1 and the damping member 1-3, the second groove 1-6 is arranged between the damping member 1-3 and the supporting member 1-2, and the adjusting ring 1-4 is pressed and assembled in the second groove 1-6; the outer wall surface of the adjusting ring 1-4 is attached to one side of the inner wall surface of the second groove 1-6, and the inner wall surface of the adjusting ring 1-4 is spaced from the other side of the inner wall surface of the second groove 1-6; the outer circular surface of the adjusting ring 1-4 is provided with two annular protrusions 1-9 arranged at intervals, and the annular protrusion 1-9 is linearly attached to one side of the inner wall surface of the second groove 1-6; the first groove 1-7 and the second groove 1-6 are both V-shaped.

[0021] The upper surface of the damping member 1-3 at the mounting end position of the sleeve 1-1 is provided with annular third grooves 1-8 and fourth grooves 1-5 at intervals; the upper surface of the damping member 1-3 is in a three-layer stepped type, and the third grooves 1-8, the fourth grooves 1-5 and the second grooves 1-6 are sequentially arranged on different layer stepped surfaces of the damping member 1-3 from top to bottom; the width of the third groove 1-8 is smaller than the width of the fourth groove 1-5, and the bottom surfaces of the third groove 1-8 and the fourth groove 1-5 are both concave arc surfaces.

[0022] In the utility model, for the scene with relatively poor working environment in the engineering machinery, the damper matched with the stiffness adjusting ring 1-4 can be used, the stiffness of the damper starts to rise after exceeding a certain deformation degree, which can hinder the further development of deformation, and is beneficial to limiting and relieving impact; the utility model can provide a rubber deformation space by arranging the first groove 1-7, the second groove 1-6, the third groove 1-8 and the fourth groove 1-5.

[0023] The utility model is illustrated by principle and verification examples after being assembled with engineering machinery (such as an engine or a motor):

[0024] When installed, two shock absorber structures of the utility model are assembled, the support ends of the two groups of shock absorber structures abut against each other, and a frame mounting plate 2-5 is assembled between the two support ends, the bolt 2-2 is locked by the nut 2-8 after being arranged in the sleeve 1-1 of the two groups of shock absorber structures, the first circular washer 2-3 and the second circular washer 2-7 are assembled on the bolt 2-2 at the position of the mounting end of the two groups of shock absorber structures (i.e. the shock absorber structure 2-4 and the shock absorber structure 2-6 in the figure), and the L-shaped bracket 2-1 is assembled between the first circular washer 2-3 and the bolt 2-2, so that the assembly forms a whole, and then the weight of the engine or the motor is applied to the two groups of shock absorber structures through the bracket 2-1, under the action of gravity, the shock absorbing piece 1-3 is deformed, and due to the incompressibility of rubber, the rubber is extruded to the space of the first groove 1-7, the second groove 1-6, the third groove 1-8 and the fourth groove 1-5 in the deformation process, and when the extrusion space is sufficient, the relationship between force and displacement is almost linear, as shown in the curve of the non-rigidity adjusting ring 1-4 in the figure Figure 6 When the adjusting ring 1-4 is added, due to the fact that part of the space in the second groove 1-6 is occupied by the adjusting ring 1-4, the extrusion space is reduced, and when the rubber has no place to deform, with the increase of displacement, the force will rapidly increase, forming a variable-rigidity curve, as shown in the curve of the rigidity adjusting ring 1-4 in the figure Figure 6 ;

[0025] Figure 6 It is a comparison diagram of the force-displacement curves of the shock absorber with the limiting ring and the shock absorber without the limiting ring, and Figure 6 In the curve diagram, the displacement interval of 0-3mm is the vibration isolation working interval, and in this interval, the curves of the two are basically coincided, the rigidity is consistent, and the vibration isolation performance is the same.

[0026] The interval greater than 3mm is the limiting and buffering interval, when there is an impact, the shock absorber works to this interval, the rigidity of the ordinate rises, the impact force can be absorbed, and the shaking is reduced.

[0027] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A stiffness-adjustable damper structure comprising, in order from the inside out, a sleeve, a damper member, and a support member, characterized by: The support is a sheet metal part, the material of the damping part is vulcanized rubber, the sleeve, the damping part and the support are vulcanized to be an integral structure, annular grooves are left between the sleeve, the support and the damping part, and an adjusting ring is press-fitted in the groove between the support and the damping part, the material of the adjusting ring is nylon, and the inner diameter of the adjusting ring is 50-120 mm.

2. A stiffness-adjustable shock absorber structure according to claim 1, characterized by: The groove is divided into a first groove and a second groove, the first groove is arranged between the support end of the sleeve and the damping part, and the second groove is arranged between the damping part and the support, and the adjusting ring is press-fitted in the second groove.

3. A stiffness-adjustable shock absorber structure according to claim 2, characterized by: The outer wall surface of the adjusting ring is attached to one side of the inner wall surface of the second groove, and a space is left between the inner wall surface of the adjusting ring and the other side of the inner wall surface of the second groove.

4. A stiffness-adjustable shock absorber structure according to claim 2, characterized by: The outer circular surface of the adjusting ring is provided with at least two annular protrusions arranged at intervals, and the annular protrusions are linearly attached to one side of the inner wall surface of the second groove.

5. A stiffness-adjustable shock absorber structure according to claim 2, characterized by: The first groove and the second groove are both V-shaped.

6. A structure of a stiffness-adjustable shock absorber according to claim 2, characterized by: Annular third and fourth grooves are arranged at intervals on the upper surface of the damping part at the sleeve mounting end position. The upper surface of the damping part is multi-stepped.

7. A stiffness-adjustable shock absorber structure according to claim 6, characterized by: The upper surface of the damping part is three-stepped, and the third groove, the fourth groove and the second groove are arranged on different stepped surfaces of the damping part from top to bottom, respectively.

8. A stiffness-adjustable shock absorber structure according to claim 6, characterized by: The width of the third groove is smaller than that of the fourth groove, and the bottom surfaces of the third groove and the fourth groove are both concave circular arc surfaces.

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