Elastic mechanism and elastic compensation insert thereof

Abstract

The utility model provides an elastic mechanism and an elastic compensation insert thereof, the elastic mechanism comprises an elastic piece and the elastic compensation insert embedded in a middle via hole of the elastic piece, and two ends of an elastic body extend towards two sides to form support arms matched with associated members; the elastic compensation insert comprises an elastic insert and a spiral protection piece, and the spiral protection piece is arranged on the elastic insert; wherein the elastic insert is made of a material with the elastic modulus smaller than that of the elastic piece, and the spiral protection piece is made of a material with the elastic modulus smaller than that of the elastic piece and larger than that of the elastic insert. According to the scheme, on the basis that good elastic threshold value adjusting capacity is obtained, the service life of the flexible elastic insert can be effectively prolonged, the requirements of different use situations can be met, and good adaptability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to an elastic mechanism and an elastic compensation insert thereof. Background Art

[0002] In the prior art, an elastic mechanism for absorbing and adapting to dynamic loads is provided, and the actual energy consumption of the movement is determined by the self - shape of the structure. In order to realize the adjustment and compensation of the elastic threshold, a flexible elastic insert can be embedded in the middle through - hole of the elastic mechanism. For example, a spiral torsion elastic mechanism or a through - type elastic mechanism. However, during the process of the elastic structure bearing work, the rigid structure generates shear stress on the flexible elastic insert, affecting the service life of the elastic insert.

[0003] In view of this, it is urgent to optimize the structure of the existing elastic mechanism to overcome the above - mentioned defects. Summary of the Utility Model

[0004] Aiming at the above - mentioned defects, the technical problem solved by the utility model is to provide an elastic mechanism and an elastic compensation insert thereof, which can effectively improve the service life of the flexible elastic insert on the basis of obtaining good elastic threshold adjustment ability, and provide good technical guarantee for ensuring the safety and reliability of threshold adjustment.

[0005] The utility model provides an elastic compensation insert, which is used for being embedded and arranged in the middle through - hole of an elastic member. The elastic compensation insert includes an elastic insert and a spiral protection member, and the spiral protection member is arranged on the elastic insert; wherein, the elastic insert is made of a material with an elastic modulus less than that of the elastic member, and the spiral protection member is made of a material with an elastic modulus less than that of the elastic member and greater than that of the elastic insert.

[0006] Preferably, the elastic insert is made of rubber material, and the spiral protection member adopts the structural form of a quasi - spiral spring.

[0007] Preferably, the spiral protection member is sleeved on the elastic insert.

[0008] Preferably, at least part of the spiral protection member is embedded in the elastic insert.

[0009] The utility model also provides an elastic mechanism for buffering an external load transmitted by an associated member; the elastic mechanism includes an elastic member and an elastic compensation insert. The elastic member has an elastic body with a middle through - hole, and both ends of the elastic body extend to both sides to form arms for adapting to the associated member; the elastic compensation insert adopts the elastic compensation insert as described above and is embedded and arranged in the middle through - hole of the elastic body.

[0010] Preferably, the elastic body of the elastic member is in a helically coiled shape, and both ends of the elastic body converge and extend to form the support arms for adapting to the associated components.

[0011] Preferably, the pitch of the two side ends of the spiral protection member is smaller than the pitch of the middle part thereof.

[0012] Preferably, the two side ends with a smaller pitch of the spiral protection member are respectively arranged radially opposite to the support arms at both ends of the elastic body of the elastic member.

[0013] Preferably, the elastic body of the elastic member is in a through-type rotary shape, and a through hole is formed in the structure part of the elastic body that is passed through, so that the structure part that is passed through has a space for elastic displacement; the two support arms for adapting to the associated components are respectively formed by extending from the structure part that is passed through and the structure part that is not passed through.

[0014] Preferably, the spiral protection member is arranged radially opposite to the through hole.

[0015] As can be seen from the above solutions, the elastic mechanism provided by this solution can instantaneously adjust the elastic threshold. Specifically, its elastic compensation insert includes an elastic insert and a spiral protection member, and the spiral protection member is arranged on the elastic insert; wherein, the elastic insert is made of a material with an elastic modulus smaller than that of the elastic member, and the spiral protection member is made of a material with an elastic modulus smaller than that of the elastic member and larger than that of the elastic insert. Compared with the prior art, based on the setting of the spiral protection member, under the action of the shear stress formed by the bending moment, the two support arms of the elastic member can act radially on the spiral protection member to protect the flexible elastic insert from being damaged; at the same time, when the elastic member twists to do work, the twisting direction of the spiral protection member can be synchronized with the spiral protection member and participate in the adjustment of the elastic threshold of the elastic member together with the elastic insert. Overall, the compensation ability can be further enhanced, providing good technical guarantee for ensuring the safety and reliability of the threshold adjustment. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for describing the embodiments of the present invention or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic diagram of the assembly relationship of the elastic mechanism described in Embodiment 1;

[0018] Figure 2 For Figure 1Schematic diagram of the overall structure of the elastic compensation insert shown therein;

[0019] Figure 3 is Figure 1 Schematic diagram of a load-bearing and working state of the elastic member shown therein;

[0020] Figure 4 is Figure 2 A - A cross-sectional view in;

[0021] Figure 5 Schematic cross-sectional view of another elastic compensation insert provided by an embodiment of the present application;

[0022] Figure 6 Schematic cross-sectional view of yet another elastic compensation insert provided by an embodiment of the present application;

[0023] Figure 7 Schematic diagram of the assembly relationship of the elastic mechanism described in the second embodiment.

[0024] In the figure:

[0025] Elastic mechanism 100, elastic mechanism 100a, elastic member 10, elastic member 10a, elastic body 101, elastic body 101a, first arm 102, second arm 103, middle through hole 104, through port 105, elastic compensation insert 20, elastic insert 1, spiral protection member 2, stop gasket 3, adjustment bolt 4. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1:

[0028] Please refer to Figure 1 and Figure 2 , wherein, Figure 1 is a schematic diagram of the assembly relationship of the elastic mechanism described in Embodiment 1, Figure 2 is Figure 1 Schematic diagram of the overall structure of the elastic compensation insert shown therein.

[0029] As shown in the figure, the elastic mechanism 100 mainly includes an elastic member 10 and an elastic compensation insert 20. Among them, the elastic member 10 has an elastic body 101 in a spiral coiled shape. The two ends of the elastic body 101 converge and extend to form arms adapted to associated components: a first arm 102 and a second arm 103, and a middle through hole 104 is formed by coiling in the middle.

[0030] In this solution, the elastic compensation insert 20 is installed in the middle through hole 104 of the elastic member 10, thereby adjusting and compensating the elastic threshold of the elastic member 10. Among them, the elastic compensation insert 20 includes an elastic insert 1 and a spiral protection member 2. The spiral protection member 2 is arranged on the elastic insert 1. The spiral protection member 2 is in the structural form of a quasi-spiral spring and is spirally wound along the axial direction of the elastic insert 1.

[0031] In a specific implementation, the elastic member 10 is the basic structural body and can be made of a metal material. The elastic insert 1 is made of a material with an elastic modulus smaller than that of the elastic member 10. For example, but not limited to, the elastic insert 1 is made of a rubber material or can also be made of a quasi-rubber material. The spiral protection member 2 is made of a material with an elastic modulus greater than that of the elastic insert 1 and smaller than that of the elastic body 101.

[0032] In this way, during the process of the elastic member 10 bearing work, the first arm 102 and the second arm 103 at both ends form a bending moment M on the elastic insert 1. Please refer to Figure 3 together, this figure is Figure 1 a schematic diagram of a bearing work state of the elastic member 10 shown in

[0033] Please refer to Figure 2 and Figure 4 together, among which, Figure 4 is Figure 2 the A-A cross-sectional view in

[0034] As shown in the figure, the spiral protection member 2 is located on the outer peripheral surface of the elastic insert 1. Based on the setting of the spiral protection member 2, under the action of the shear stress formed by the bending moment M, the first arm 102 and the second arm 103 can radially press against the spiral protection member 2 to protect the flexible elastic insert 1 from being damaged. At the same time, when the elastic member 10 twists to do work, the twisting direction of the spiral protection member 2 can be synchronized with that of the spiral protection member 2 and participate in the adjustment of the elastic threshold of the elastic member 10 together with the elastic insert 1. Overall, the compensation ability can be further enhanced, providing good technical guarantee for ensuring the safety and reliability of the threshold adjustment.

[0035] In order to improve the protection effect of the spiral protection member 2, as shown in Figure 2 , the pitch of the two end parts of the spiral protection member 2 is smaller than that of the middle part; that is to say, the end pitch of the spiral protection member 2 is relatively compact. In the local position area B where the elastic compensation insert 20 is radially opposite to the spiral protection member 2 with a small pitch, the strength and rigidity to meet good shear resistance can be obtained. Axially, the local position areas B on both sides are respectively arranged opposite to the first arm 102 and the second arm 103.

[0036] It should be understood that the local position area B is not limited to the dashed box shown in the figure. In other possible implementation manners, it can be determined according to the actual needs of different scenarios, such as but not limited to the size of the actual load and the dimensional sizes of related structures such as the first arm 102 and the second arm 103, etc.

[0037] It should be noted that, by way of example, Figure 4 the cross-section of the spiral structure of the spiral protection member 2 shown in is circular. In other specific implementations, the cross-section of the spiral structure of the spiral protection member 2 can also be other geometric shapes, such as an ellipse or a rectangle, etc. The embodiments of the present application do not make any limitations.

[0038] In addition, stop gaskets 3 can be respectively arranged at both axial ends of the elastic compensation insert 20. Again, Figure 4 as shown by the dashed line, the adjusting bolt 4 passes through the elastic insert 1 and the stop gasket 3. The axial distance between the two stop gaskets 3 can be changed by adjusting the adjusting bolt 4, and then the elastic insert 1 is axially extruded to realize the change of the radial dimension. Thus, based on the change of the expansion stress of the elastic insert 1, the corresponding elastic auxiliary compensation ability is provided.

[0039] Furthermore, both ends of the elastic insert 1 and the spiral protection member 2 can be axially abutted against the stop gasket 3 to form an elastic compensation insert 20 with armor. In other specific implementations, the spiral protection member 2 may not be axially abutted against the stop gaskets 3 at both ends. The embodiments of the present application do not make any limitations.

[0040] In addition, in specific implementations, the elastic insert 1 and the spiral protection member 2 can adopt different assembly methods. Please refer to Figure 5 and Figure 6 , Figure 5 which is a schematic cross-sectional view of another elastic compensation insert 20 provided by the embodiments of the present application, Figure 6 and which is a schematic cross-sectional view of yet another elastic compensation insert 20 provided by the embodiments of the present application. For clearly showing the differences and connections between the embodiments, the components and structures with the same functions are denoted by the same reference numerals in the figures.

[0041] As Figure 5 shown, the spiral protection member 2 is embedded in the elastic insert 1, and the outer circumferential surfaces of the spiral protection member 2 can be partially exposed outside the elastic insert 1, that is, not completely embedded. As Figure 6 shown, the spiral protection member 2 is completely embedded in the structure of the elastic insert 1. Similarly, it can achieve the effect of protecting the flexible elastic insert 1 and further enhancing the compensation ability.

[0042] Embodiment 2:

[0043] Please refer to Figure 7, which is a schematic diagram of the assembly relationship of the elastic mechanism described in Embodiment 2. To clearly show the differences and connections between the embodiments, the components and structures with the same functions are denoted by the same reference numerals in the figures.

[0044] As shown in the figure, the elastic mechanism 100a mainly includes an elastic member 10a and an elastic compensation insert 20. Among them, the elastic member 10a has an elastic body 101a in a through-type rotary shape. The elastic member 10a uses a through-type structure as the basic structural body. A through hole 105 is formed in the penetrated structural part of the elastic body 101a so that the penetrated structural part has a space for elastic displacement.

[0045] In this embodiment, the two ends of the elastic body 101a converge and extend to form arms adapted to associated components: a first arm 102 and a second arm 103, and a middle through hole 104 is formed by rotation in the middle. Among them, the first arm 102 extends from the penetrated structural part, and the second arm 103 extends from the non-penetrated structural part. Specifically, it can be implemented by using the prior art, and the embodiments of the present application do not make limitations.

[0046] Similarly, the elastic compensation insert 20 is installed in the middle through hole 104 of the elastic member 10a, thereby adjusting and compensating the elastic threshold of the elastic member 10a.

[0047] As Figure 7 shown, stop washers 3 are respectively arranged at the two axial ends of the elastic compensation insert 20. The adjusting bolt 4 passes through the elastic insert 1 and the stop washers 3. By adjusting the adjusting bolt 4, the axial distance between the two stop washers 3 can be changed, and then the elastic insert 1 is axially extruded to realize the change of the radial dimension. Based on the change of the expansion stress of the elastic insert 1, in the actual application scenario, the different working condition capabilities of the elastic mechanism 100a can be adjusted and compensated.

[0048] Optionally, axially, the spiral protection member 2 may not be completely arranged on the elastic insert 1. For example, radially, the spiral protection member 2 can be arranged at a position corresponding to the through hole 105 as shown in the figure. In this way, during the rotary displacement of the elastic member 10a of the through structure and the process of the reduction of the aperture of the middle through hole 104, the flexible elastic insert 1 embedded in the middle through hole 104 has a tendency to be squeezed into the through hole 105. The spiral protection member 2 is made of a material with an elastic modulus greater than that of the elastic insert 1, which can prevent the elastic insert 1 from being squeezed into the through hole 105 and ensure that the flexible elastic insert 1 is not damaged by shear forces. At the same time, the spiral protection member 2 synchronously twists and contracts and participates in adjusting the elastic threshold of the through structure together with the flexible elastic insert 1.

[0049] The specific implementation of other functional components can be the same as that in Embodiment 1. Therefore, it will not be elaborated here.

[0050] It should be noted that the elastic mechanism described in this embodiment can be widely applied to different vibration damping and energy absorption scenarios. Based on the performance requirements of the external loads transmitted by the buffer connection components in different application scenarios, the shape and size parameters of the elastic mechanism can be adaptively selected. It should be understood that the specific shape and size parameters do not constitute a substantial limitation to the elastic mechanism claimed in this application.

[0051] Finally, it should also be noted that the term "including" or "comprising" or any other variant thereof used in this text is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements that are inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An elastic compensation insert, which is used for being inserted and arranged in a middle through hole of an elastic member, and is characterized in that The elastic compensation insert includes an elastic insert and a spiral protection member, and the spiral protection member is arranged on the elastic insert; Wherein, the elastic insert is made of a material with an elastic modulus less than that of the elastic member, and the spiral protection member is made of a material with an elastic modulus less than that of the elastic member and greater than that of the elastic insert.

2. The elastic compensation insert according to claim 1, wherein The elastic insert is made of a rubber material, and the spiral protection member adopts the structural form of a spiral spring.

3. The elastic compensation insert according to claim 2, characterized in that, The spiral protection member is sleeved on the elastic insert.

4. The elastic compensation insert according to claim 2, wherein, At least a part of the spiral protection member is embedded in the elastic insert.

5. An elastic mechanism for buffering an external load transmitted by an associated component, characterized in that, The elastic mechanism includes an elastic member and an elastic compensation insert. The elastic member has an elastic body with a central through-hole, and two ends of the elastic body extend towards both sides to form arms for adapting to the associated member; the elastic compensation insert adopts the elastic compensation insert according to any one of claims 1 to 4, and is installed in the central through-hole of the elastic body.

6. The elastic mechanism according to claim 5, characterized in that, The elastic body of the elastic member is in a spiral coiled shape, and two ends of the elastic body converge and extend to form the arms for adapting to the associated member.

7. The elastic mechanism according to claim 6, characterized in that, The pitch of both ends of the spiral protection member is smaller than the pitch of its middle part.

8. The elastic mechanism according to claim 7, characterized in that, Both ends of the spiral protection member with a small pitch are respectively arranged radially opposite to the arms at both ends of the elastic body of the elastic member.

9. The elastic mechanism according to claim 5, characterized in that, The elastic body of the elastic member is in a through-type rotary shape, and a through-hole is formed in the structure part of the elastic body that is passed through, so that the structure part that is passed through has a space for elastic displacement; The two arms for adapting to the associated member are respectively formed by extending from the structure part that is passed through and the structure part that is not passed through.

10. The elastic mechanism according to claim 9, characterized in that, The spiral protection member is arranged radially opposite to the through-hole.

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