阅读说明：本技术 一种减振器组合结构 (Shock absorber integrated configuration ) 是由 王春龙 熊雪辉 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种减振器组合结构,包括减振块一、减振块二和连接组件,减振块一、减振块二相互叠加设置,减振块一、减振块二中间均开设有通孔,两个通孔内共用一长度可调的限位金属套,限位金属套嵌套在通孔内且与减振块一、减振块二保持相互独立,连接组件穿过限位金属套并串联起减振块一和减振块二,减振块一和减振块二之间设置用于连接减振部件的支撑构件。该减振器组合结构简单,易于实现后续减振结构的安装,并可有效且方便的调整减振器的轴向、径向刚度比,达到理想的减振效果。(The invention discloses a shock absorber combined structure which comprises a first damping block, a second damping block and a connecting assembly, wherein the first damping block and the second damping block are arranged in a mutual overlapping mode, through holes are formed in the middles of the first damping block and the second damping block, a limiting metal sleeve with adjustable length is shared in the two through holes, the limiting metal sleeve is embedded in the through holes and keeps mutually independent with the first damping block and the second damping block, the connecting assembly penetrates through the limiting metal sleeve and is connected with the first damping block and the second damping block in series, and a supporting member used for connecting a shock absorption part is arranged between the first damping block and the second damping block. The shock absorber has a simple combined structure, is easy to realize the installation of a subsequent shock absorbing structure, and can effectively and conveniently adjust the axial rigidity ratio and the radial rigidity ratio of the shock absorber to achieve an ideal shock absorbing effect.)

1. The utility model provides a shock absorber integrated configuration, includes damping piece (1a), damping piece two (1b) and coupling assembling (2), its characterized in that, damping piece (1a), damping piece two (1b) superpose the setting each other, through-hole (15) have all been seted up in the middle of damping piece (1a), damping piece two (1b), share a length adjustable spacing metal covering (3) in two through-holes (15), spacing metal covering (3) nestification is in through-hole (15) and with damping piece (1a), damping piece two (1b) keep mutually independent, coupling assembling (2) pass spacing metal covering (3) and establish ties damping piece one (1a) and damping piece two (1b), set up the supporting member who is used for connecting the damping part between damping piece one (1a) and damping piece two (1 b).

2. The combined structure of the shock absorber as claimed in claim 1, wherein the first damping block (1a) and the second damping block (1b) comprise a first support plate (11) and a second support plate (12), and a rubber block (13) is fixed between the first support plate (11) and the second support plate (12); a through hole (15) extending along the axis direction is formed in the rubber block (13), the through hole (15) penetrates through the first supporting plate (11), and a mounting hole (14) is formed in the middle of the second supporting plate (12).

3. A shock absorber combination according to claim 2, wherein the rubber block (13) is a cylindrical rubber block.

4. The shock absorber combination structure as set forth in claim 2, wherein said first support plate (11) comprises a cylindrical mouth neck portion (111) and an annular plate (112), one end of said mouth neck portion (111) being integrally formed with an inner circular side wall of the annular plate (112); the axes of the mounting hole (14), the through hole (15) and the mouth neck part (111) are consistent; the diameter of the through hole (15) is larger than that of the mounting hole (14) and smaller than the inner diameter of the mouth neck part (111).

5. A combined vibration damper according to any one of claims 2-4, wherein the thickness and/or outer diameter of the first and second damping masses (1a, 1b) are different.

6. The combined vibration damper according to any one of claims 2 to 4, wherein the first support plate (11) of the first vibration damping mass (1a) and the first support plate (11) of the second vibration damping mass (1b) are arranged in an opposing stacked relationship.

7. A shock absorber combination according to any one of claims 1-4, wherein the connection assembly (2) comprises a bolt (21), a nut (22), a washer (23); a screw rod of the bolt (21) sequentially penetrates through the through hole (15) of the first vibration damping block (1a) and the through hole (15) of the second vibration damping block (1b), and a matched nut (22) is connected to the screw rod of the bolt (21) on the outer side of the second vibration damping block (1b) in a threaded mode; the screw of the bolt (21) penetrates through the limiting metal sleeve (3); and a gasket (23) is arranged between the screw tail of the bolt (21) and the first vibration damping block (1 a).

8. A combined vibration damper according to any one of claims 1-4, characterized in that a receiving cavity for receiving the supporting member is reserved between the first vibration damper block (1a) and the second vibration damper block (1b), and an isolation cavity (6) for separating the supporting member from the limiting metal sleeve (3) is arranged in the receiving cavity.

9. The combined vibration damper structure according to claim 8, wherein the support member comprises a second support bracket (5) arranged at the end part and a first support bracket (4) sleeved between the first vibration damping block (1a) and the second vibration damping block (1b), and at least one of the first support bracket (4) and the second support bracket (5) is configured to be connected with an external member generating vibration.

10. The combined structure of the shock absorber as claimed in any one of claims 1-4, wherein a gap is left between the outer side wall of the limiting metal sleeve (3) and the inner side walls of the through holes (15) in the first damping block (1a) and the second damping block (1b), and a thin-walled rubber sleeve (7) with the same length as the limiting metal sleeve is sleeved outside the limiting metal sleeve (3); the thin-wall rubber sleeve (7) and the limiting metal sleeve (3), the first vibration reduction block (1a) and the second vibration reduction block (1b) are mutually independent, the outer side wall of the thin-wall rubber sleeve (7) is in contact with the inner side walls of the two through holes (15), and the inner side walls are in contact with the outer side wall of the limiting metal sleeve (3).

Technical Field

The invention relates to the technical field of shock absorbers for engineering machinery, in particular to a shock absorber combined structure.

Background

In the working process of the engineering machinery, vibration is generally generated, if parts in the engineering machinery are connected through the rigid connecting piece, the rigid connecting piece is easy to break in the continuous vibration process, so that the problem that the connecting piece is easy to break can be solved by adopting the vibration absorber to connect when the parts in the engineering machinery are connected at present.

The domestic patent of application number 201510893110.X discloses a damping piece and shock absorber structure thereof, and the damping piece comprises an inner bushing, the outer bushing is sleeved with an outer bushing, the outer bushing comprises a neck, a supporting part and an axially extending part, damping rubber is poured between the inner bushing and the outer bushing, a supporting end and a part mounting end are formed, and a first groove is arranged on the damping rubber of the axially extending part. The damping block can well realize the installation of a follow-up damper, effectively avoids the abrasion of damping rubber in the using process, causes the extrusion damage of the damping rubber when in overload, and ensures the damping effect. However, the damping block has a complex structure and high production cost, and the inner bushing is fixedly connected with the damping rubber, so that the distance between the upper damping block and the lower damping block cannot be flexibly adjusted when the shock absorber is combined, and the axial stiffness, the radial stiffness and the like of the damping block cannot be adjusted easily.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the combined structure of the shock absorber, which is simple in combined structure, easy to realize the installation of the subsequent shock absorbing structure, and capable of effectively and conveniently adjusting the axial rigidity ratio and the radial rigidity ratio of the shock absorber to achieve the ideal shock absorbing effect.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the utility model provides a shock absorber integrated configuration, includes damping piece one, damping piece two and coupling assembling, damping piece one, damping piece two superpose the setting each other, the through-hole has all been seted up in the middle of damping piece one, the damping piece two, the spacing metal covering of a sharing adjustable length in two through-holes, spacing metal covering nestification is in the through-hole and with damping piece one, damping piece two keep mutual independence, coupling assembling passes spacing metal covering and establishes ties damping piece one and damping piece two, set up the supporting member who is used for connecting the damping part between damping piece one and the damping piece two.

Based on the combined arrangement of the vibration reduction block and the limiting metal sleeve, the combined structure, the axial rigidity, the radial rigidity and the ratio of the axial rigidity to the radial rigidity of the vibration reducer can be adjusted more flexibly, and the ideal ratio of the axial rigidity to the radial rigidity under various working conditions is achieved.

Further, the first vibration reduction block and the second vibration reduction block respectively comprise a first support plate and a second support plate, and a rubber block is fixed between the first support plate and the second support plate; a through hole extending along the axis direction is formed in the rubber block, the through hole penetrates through the first supporting plate, and a mounting hole is formed in the middle of the second supporting plate.

Further, the rubber block is a cylindrical rubber block.

Furthermore, the supporting plate comprises a cylindrical mouth neck part and an annular plate, and one end of the mouth neck part is integrally formed with the side wall of the inner circle of the annular plate; the axes of the mounting hole, the through hole and the mouth neck part are consistent; the diameter of the through hole is larger than that of the mounting hole and smaller than the inner diameter of the mouth neck part.

Furthermore, the thickness and/or the outer diameter of the first vibration reduction block and the second vibration reduction block are different in size.

Furthermore, the first support plate of the first vibration reduction block and the first support plate of the second vibration reduction block are oppositely arranged in a stacked mode.

Further, the connecting assembly comprises a bolt, a nut and a gasket; a screw rod of the bolt sequentially penetrates through the through hole of the first vibration damping block and the through hole of the second vibration damping block, and a matched nut is connected to the screw rod of the bolt on the outer side of the second vibration damping block in a threaded manner; the bolt screw penetrates through the limiting metal sleeve; and a gasket is arranged between the screw tail of the bolt and the first vibration damping block.

Furthermore, an accommodating cavity for accommodating the supporting member is reserved between the first vibration damping block and the second vibration damping block, and an isolation cavity for separating the supporting member from the limiting metal sleeve is arranged in the accommodating cavity.

Furthermore, the supporting member comprises a second supporting bracket arranged at the end part and a first supporting bracket arranged between the first damping block and the second damping block in a sleeved mode, and at least one of the first supporting bracket and the second supporting bracket is configured to be connected with an external member generating vibration.

Furthermore, a gap is reserved between the outer side wall of the limiting metal sleeve and the inner side walls of the through holes in the first vibration reduction block and the second vibration reduction block, and a thin-wall rubber sleeve with the length consistent with that of the limiting metal sleeve is sleeved outside the limiting metal sleeve; the thin-wall rubber sleeve is mutually independent from the limiting metal sleeve, the first vibration reduction block and the second vibration reduction block, the outer side wall of the thin-wall rubber sleeve is in contact with the inner side walls of the two through holes, and the inner side walls are in contact with the outer side wall of the limiting metal sleeve.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the combination mode of the combined structure of the shock absorber is flexible and changeable, the axial rigidity, the radial rigidity and the ratio of the axial rigidity to the radial rigidity of the shock absorber can be more conveniently adjusted by adjusting the hardness of the rubber block, the thickness and the outer diameter of the shock absorber and the combined precompression amount (adjusting the length of the middle limiting metal sleeve), and the ideal axial rigidity and radial rigidity ratio under various working conditions is achieved, so that an ideal shock absorption effect is obtained, and the comfort level of engineering machinery, automobiles and other working states is improved.

2. The shock absorber combination structure is simple, the follow-up installation with engineering machinery is easy to realize, the abrasion of the shock absorbing rubber in the using process and the extrusion damage of the shock absorbing rubber block in overload can be effectively avoided, the shock absorbing effect is ensured, and the service life is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a shock absorber assembly;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of another shock absorber assembly;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic structural view of a damper block;

FIG. 6 is a cross-sectional view of the damper block;

FIG. 7 is a cross-sectional view of a retaining metal sleeve;

FIG. 8 is a schematic structural view of the rubber sleeve of FIG. 2 with thin walls;

FIG. 9 is a schematic view of the structure of FIG. 4 including a thin-walled rubber sleeve;

illustration of the drawings:

1a, a first vibration damping block; 1b, a second vibration damping block; 11. a first support plate; 111. a neck portion; 112. an annular plate; 12. a second support plate; 13. a rubber block; 14. mounting holes; 15. a through hole; 2. a connecting assembly; 21. a bolt; 22. a nut; 23. a gasket; 3. a limiting metal sleeve; 4. a first support bracket; 5. a second support bracket; 6. an isolation chamber; 7. thin-wall rubber sleeve.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully and in detail with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.

Example 1:

as shown in fig. 1 to 7, the vibration damper composite structure in this embodiment includes a first vibration damping block 1a, a second vibration damping block 1b, and a connecting assembly 2, where the first vibration damping block 1a and the second vibration damping block 1b are stacked with each other, through holes 15 are formed in the middle of the first vibration damping block 1a and the second vibration damping block 1b, a limiting metal sleeve 3 with adjustable length is shared in the two through holes 15, the limiting metal sleeve 3 is nested in the through holes 15 and is kept independent of the first vibration damping block 1a and the second vibration damping block 1b, the connecting assembly 2 penetrates through the limiting metal sleeve 3 and is connected in series with the first vibration damping block 1a and the second vibration damping block 1b, and a supporting member for connecting a vibration damping component is disposed between the first vibration damping block 1a and the second vibration damping block 1 b.

In this embodiment, the length of the limiting metal sleeves 3 commonly arranged in the through holes 15 of the first vibration damping block 1a and the second vibration damping block 1b is adjustable, so that the limiting metal sleeves 3 with proper length can be selected according to the combined precompression needed by the combined structure, and then the connecting components 2 with proper specifications are adopted for combination, so that the axial rigidity of the combined structure of the vibration damper can be conveniently adjusted. And adopt two unanimous and relative damping piece one 1a, damping piece two 1b that set up of structure, because the damping action mechanism of damping piece is the same, can be convenient for carry out radial rigidity's regulation, with above-mentioned spacing metal covering 3 cooperation, make the regulation shock absorber integrated configuration axial rigidity very convenient with radial rigidity ratio.

In this embodiment, the first vibration damping block 1a and the second vibration damping block 1b both include a first support plate 11 and a second support plate 12, and a rubber block 13 is fixed between the first support plate 11 and the second support plate 12; a through hole 15 extending along the axis direction is formed in the rubber block 13, the through hole 15 penetrates through the first supporting plate 11, and a mounting hole 14 is formed in the middle of the second supporting plate 12. The vibration reduction block has a simple structure, so that the vibration reduction blocks with different rubber block hardness can be conveniently prepared, the vibration reduction blocks with different thicknesses and outer diameters can also be conveniently prepared, then the proper first vibration reduction block 1a and the proper second vibration reduction block 1b are selected to be matched for use, and meanwhile, the vibration reduction block with the simple structure can enable the vibration absorber combined structure to be conveniently installed.

In this embodiment, the rubber block 13 is a cylindrical rubber block. The cylindrical rubber block 13 has the advantages of uniform upper and lower diameters and uniform stress, and is convenient for radial rigidity adjustment on one hand and small in extrusion damage in the use process on the other hand.

In this embodiment, the first support plate 11 includes a cylindrical mouth-neck portion 111 and an annular plate 112, one end of the mouth-neck portion 111 is integrally formed with an inner circular side wall of the annular plate 112; the axes of the mounting hole 14, the through hole 15 and the mouth neck part 111 are consistent; the diameter of the through hole 15 is larger than the diameter of the mounting hole 14 and smaller than the inner diameter of the mouth-and-neck portion 111. The first support plate 11 of the first vibration reduction block 1a and the first support plate 11 of the second vibration reduction block 1b are oppositely arranged in a stacked mode. Through the arrangement, the installation of each part is facilitated, the stress of the combined structure of the shock absorber is uniform, the extrusion damage to the rubber block 13 is reduced, and the shock absorption is facilitated.

In this embodiment, the connecting assembly 2 includes a bolt 21, a nut 22, and a washer 23; the screw rod of the bolt 21 sequentially penetrates through the mounting hole 14 (matched with the screw rod of the bolt 21) of the first vibration damping block 1a, the through hole 15 of the second vibration damping block 1b and the mounting hole 14, and the screw rod of the bolt 21 on the outer side of the second vibration damping block 1b is in threaded connection with a matched nut 22; the bolt 21 and the screw rod pass through the limiting metal sleeve 3; a gasket 23 is arranged between the screw tail of the bolt 21 and the first vibration damping block 1 a. The connecting assembly 2 has a simple structure, so that the shock absorber combined structure is convenient to install, all the parts can be conveniently and tightly connected, and the connecting assembly is suitable for installing the limiting metal sleeves 3 with different lengths and the damping blocks with different outer diameters and thicknesses so as to adjust the axial rigidity, the radial rigidity and the ratio of the axial rigidity to the radial rigidity of the shock absorber combined structure. The tightness of the connection between the parts can be enhanced by providing the gasket 23, and the vibration damping effect can be enhanced.

In this embodiment, an accommodating cavity for accommodating the supporting member is reserved between the first vibration damping block 1a and the second vibration damping block 1b, and an isolation cavity 6 for separating the supporting member from the limiting metal sleeve 3 is disposed in the accommodating cavity. Through setting up isolation chamber 6, can prevent effectively that supporting member and spacing metal covering 3 from rubbing or striking, also can play certain buffering effect of keeping away shaking in the footpath simultaneously.

In this embodiment, a gap is left between the outer side wall of the limiting metal sleeve 3 and the inner side walls of the through holes 15 in the first vibration damping block 1a and the second vibration damping block 1b, so that the friction damage between the limiting metal sleeve 3 and the first vibration damping block 1a and the second vibration damping block 1b can be reduced.

In this embodiment, the support member includes a second support bracket 5 provided at the end portion and a first support bracket 4 sleeved between the first vibration damping block 1a and the second vibration damping block 1b, and at least one of the first support bracket 4 and the second support bracket 5 is configured to be connected to an external member generating vibration. For example, the first support bracket 4 and the second support bracket 5 may be brackets of two work machines to be connected, wherein the first support bracket 4 corresponds to a vibration-generating work machine. The first support bracket 4, the second support bracket 5 and the shock absorber combined structure are combined into a whole, so that the vibration generated when the engineering machinery connected with the first support bracket 4 works is effectively attenuated, and the shock absorption effect is good.

In this embodiment, the thicknesses and/or outer diameters of the first damper block 1a and the second damper block 1b may be the same (as shown in fig. 1 to 2) or different (as shown in fig. 3 to 4), depending on the axial stiffness, the radial stiffness, and the like required for specific operations.

In the embodiment, the combination mode of the combined structure of the shock absorber is flexible and changeable, the axial rigidity, the radial rigidity and the ratio of the axial rigidity to the radial rigidity of the shock absorber can be conveniently adjusted, and the ideal ratio of the axial rigidity to the radial rigidity under various working conditions is achieved, so that an ideal shock absorption effect is obtained, and the comfort degree of engineering machinery, automobiles and other working states is improved.

Example 2:

as shown in fig. 8-9, the damper combination structure in this embodiment is different from that in embodiment 1 in that a thin-walled rubber sleeve 7 having the same length as that of the limiting metal sleeve 3 is further sleeved outside the limiting metal sleeve 3; the thin-wall rubber sleeve 7, the limiting metal sleeve 3, the first vibration reduction block 1a and the second vibration reduction block 1b are mutually independent, the outer side wall of the thin-wall rubber sleeve 7 is in contact with the inner side walls of the two through holes 15, and the inner side walls are in contact with the outer side wall of the limiting metal sleeve 3. Through the arrangement of the thin-wall rubber sleeve 7, on one hand, the limiting metal sleeve 3 can be further limited, so that the limiting metal sleeve 3 is prevented from rotating or generating other displacements in the working process of the shock absorber combined structure, the shock absorber combined structure is more stable, and the friction or extrusion between the limiting metal sleeve 3 and the support plate II 12 and between the limiting metal sleeve and the bolt 21 screw can be reduced; on the other hand, the thin-wall rubber sleeve 7 has certain elasticity and can play a certain role in buffering and damping in the radial direction and the axial direction. The thin-wall rubber sleeve 7 is simple in structure, easy to produce and low in production cost, and can be produced in a matching way with the limiting metal sleeves 3 with different lengths. When the wear-resistant rubber is worn, the rubber can be replaced, and the use cost is low.