Back vibration isolator with vertical bearing capacity

Abstract

The utility model provides a back vibration isolator with vertical bearing capacity, which comprises a support, two ends of the support are respectively provided with a support ring portion, and a load space is formed between the two support ring portions. The supporting column penetrates through the two support ring parts; one end of the rod end bearing joint extends into the load space, springs are arranged on the two sides of the rod end bearing joint correspondingly, a first gasket is arranged on the outer side of any spring, rubber is arranged on the outer side of any first gasket, and a second gasket is arranged on the outer side of any second gasket. The two pieces of rubber are arranged in the two support ring parts respectively and limited to the two ends of the supporting column respectively. Springs are arranged on the two sides of the rod end bearing joint correspondingly, so that the back vibration isolator has the vertical bearing capacity.

Description

Technical Field

[0001] The utility model relates to a back shock isolator, in particular to a back shock isolator with vertical load-bearing capacity. Background Art

[0002] Generally, the back shock isolator plays a guiding role vertically, has no stiffness, and does not have vertical load-bearing capacity. Horizontally, as the displacement amount caused by vibration and impact increases, the stiffness and damping of the shock isolator also increase. Summary of the Invention

[0003] The utility model provides a back shock isolator with vertical load-bearing capacity. Springs are arranged on both sides of the rod-end bearing joint, increasing the vertical load-bearing capacity of the back shock isolator. By selecting springs with different stiffnesses, the load-bearing capacity of the shock isolator can be changed, and the equipment weight has a wide applicable range. The technical solution adopted by the utility model is as follows:

[0004] A back shock isolator with vertical load-bearing capacity, comprising:

[0005] A bracket, with bracket ring parts respectively arranged at both ends of the bracket, and a load space is formed between the two bracket ring parts;

[0006] A pillar, passing through the two bracket ring parts;

[0007] A rod-end bearing joint, one end of which extends into the load space, springs are respectively arranged on both sides of the rod-end bearing joint, a first gasket is arranged on the outer side of any one of the springs, rubber is arranged on the outer side of any one of the first gaskets, the two rubbers are respectively arranged in the two bracket ring parts, and the two rubbers are respectively restricted at both ends of the pillar;

[0008] The rod-end bearing joint, the spring, the first gasket and the rubber are respectively sleeved on the pillar.

[0009] Further, a gasket groove is arranged on one side of the first gasket, and one end of the spring extends into the gasket groove.

[0010] Further, the pillar comprises a bolt and a nut, the bolt extends from one side of one of the bracket ring parts to the other side of the other bracket ring part, and the nut is located on the other side of the other bracket ring part and is threadedly connected to the bolt.

[0011] Further, a partition plate is arranged between one of the bracket ring parts and the end of the bolt and / or between the other bracket ring part and the nut.

[0012] Further, a second gasket is arranged on the side of any one of the rubbers away from the first gasket, and the second gasket is sleeved on the bolt.

[0013] Furthermore, third gaskets are respectively arranged on both sides of the rod end bearing joint. The third gaskets are sleeved on the bolts, and one end of the spring abuts against the third gaskets.

[0014] Furthermore, mutually matching steps are respectively arranged on the inner surface of the support ring part and the outer surface of the rubber.

[0015] Furthermore, the shape of the rubber is honeycomb-shaped.

[0016] Furthermore, the support includes a support back, support sides, and a support ring part. The two ends of the support back respectively extend towards the same side to be provided with support sides, and one side of the support sides is connected with the support ring part.

[0017] Furthermore, a back hollow groove is arranged in the middle of the support back; and / or, a plurality of support wing parts are arranged on the outer edge of the support back, and wing part positioning holes are arranged on the support wing parts.

[0018] Advantages of the present utility model:

[0019] 1), By arranging springs on both sides of the rod end bearing joint, the vibration isolator can bear vertical loads;

[0020] 2), Springs with different free heights can be selected to adjust the pre-compression amount of the springs, thereby increasing the frictional damping and reducing the magnification of the equipment at the natural frequency, being applicable to equipment of various weights and expanding the applicable range;

[0021] 3), The honeycomb-shaped rubber has a large pre-compression amount and a large damping ratio, optimizing the impact resistance performance of the vibration isolator;

[0022] 4), Steps are arranged on the support ring part and the rubber to limit the pre-compression amount of the springs;

[0023] 5), The hollowing of the support back realizes weight reduction, and the support wing parts facilitate the installation of the support and will not interfere with other components. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the structural composition of the present utility model.

[0025] Figure 2 It is a plan view of the present utility model.

[0026] Figure 3 It is Figure 2 The A-A cross-sectional view in

[0027] In the figure: 1 - support, 110 - back of the support, 111 - hollow groove on the back, 120 - side of the support, 130 - ring part of the support, 140 - fin part of the support, 141 - positioning hole of the fin part, 2 - bolt, 3 - nut, 4 - rod end bearing joint, 5 - spring, 6 - first gasket, 610 - gasket groove, 7 - rubber, 8 - partition board, 9 - second gasket, 10 - third gasket. Detailed implementation manner

[0028] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further elaborates on the present utility model in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] Please refer to the attached Figures 1 - 3 The present utility model provides a back vibration isolator with vertical load-bearing capacity, including: a support 1, with ring parts 130 of the support arranged at both ends of the support 1 respectively, and a load space formed between the two ring parts 130 of the support; a pillar passing through the two ring parts 130 of the support; a rod end bearing joint 4, one end of which extends into the load space, springs 5 are arranged on both sides of the rod end bearing joint 4 respectively, a first gasket 6 is arranged outside any one of the springs 5, a rubber 7 is arranged outside any one of the first gaskets 6, the two rubbers 7 are respectively arranged in the two ring parts 130 of the support, and the two rubbers 7 are respectively restricted at both ends of the pillar; the rod end bearing joint 4, the spring 5, the first gasket 6 and the rubber 7 are respectively sleeved on the pillar.

[0030] Specifically, the two ring parts 130 of the support are arranged at intervals in the vertical direction; the pillar passes through the two ring parts 130 of the support in the vertical direction, while ensuring the coaxiality of the rod end bearing joint 4, the spring 5, the first gasket 6 and the rubber 7, and also restricting the rubbers 7 at both ends of the pillar; the pre-tightening forces of the springs 5 on the upper and lower sides of the rod end bearing joint 4 enable the rod end bearing joint 4 to have vertical load-bearing capacity. Especially when a threaded connection component is arranged at the other end of the rod end bearing joint 4, when the component makes a relative displacement in the vertical direction relative to the support 1, the component will drive the rod end bearing joint 4 to move up or down along the pillar, so that the compression amounts of the springs 5 on the upper and lower sides of the rod end bearing joint 4 will both change, thereby reducing the vertical vibration of the component connected to the rod end bearing joint 4.

[0031] In some embodiments, the spring 5 is a cylindrical spring or a conical spring. When the spring is a conical spring, the end with a smaller diameter of the conical spring is close to the rod end bearing joint 4, and the end with a larger diameter of the conical spring is close to the first gasket 6. By making the end with a larger diameter of the conical spring close to and contact the first gasket 6, the horizontal damping of the first gasket 6 can be increased. By setting the first gasket 6 to fit the bottom surface of the rubber 7, the first gasket 6 has horizontal damping by using the pre-tightening force of the spring 5. Thus, when the component is subjected to a horizontal impact and the rod end bearing joint 4 has a movement tendency in the horizontal direction along with the component, the damping force between the first gasket 6 and the rubber 7 takes effect; when the component is subjected to a strong horizontal impact, the acting force is transmitted from the rod end bearing joint 4 and the support column to the rubber 7, and the rubber 7 deforms within the support ring portion 130 to produce an anti-impact effect.

[0032] In a specific embodiment, a gasket groove 610 is provided on one side of the first gasket 6, and one end of the spring 5 extends into the gasket groove 610; through the gasket groove 610, the end of the spring 5 will not deviate or protrude from the first gasket 6, which can not only ensure the straightness of the spring 5, but also avoid the problem that the spring 5 detaches from the first gasket 6 when the component is subjected to a strong horizontal impact, resulting in a sudden decrease in its pre-tightening force.

[0033] In one embodiment, the support column includes a bolt 2 and a nut 3. The bolt 2 extends from one side of one of the support ring portions 130 to the other side of the other support ring portion 130, and the nut 3 is located on the other side of the other support ring portion 130 and is threadedly connected to the bolt 2.

[0034] By providing the bolt 2 and the nut 3, the rod end bearing joint 4, the spring 5, the first gasket 6, and the rubber 7 on the support column are all detachable; by selecting springs 5 with different free heights to change the pre-compression amount of the spring, the frictional damping between the first gasket 6 and the rubber 7 is also increased, which is beneficial to reducing the equipment frequency magnification factor at the natural frequency.

[0035] In one embodiment, a partition 8 is provided between one of the support ring portions 130 and the end of the bolt 2 and / or between the other support ring portion 130 and the nut 3.

[0036] Specifically, partitions 8 are provided at both support ring portions 130; the partition 8 can first cover the annular space in the middle of the support ring portion 130 to hide the rubber 7 located within the support ring portion 130 and save space; secondly, the partition 8 spaces the head of the bolt 2, the nut 3 from the support ring portion 130, and the partition 8 can completely cover the bottom surface of the rubber 7 to prevent the head of the bolt 2 or the nut 3 from directly contacting the rubber 7 and causing local wear of the rubber 7.

[0037] In one embodiment, in order to further improve the protection of the rubber 7, a second gasket 9 is provided on the side of any of the rubbers 7 away from the first gasket 6, and the second gasket 9 is sleeved on the bolt 2; specifically, the second gasket 9 and the rubber 7 are hidden in the support ring portion 130 together, and the partition plate 8 is in contact with the end surface of the support ring portion 130.

[0038] In one embodiment, in order to prevent the spring 5 from directly contacting the rod end bearing joint 4 and affecting its rotation on the bolt 2, third gaskets 10 are respectively provided on both sides of the rod end bearing joint 4, the third gaskets 10 are sleeved on the bolt 2, and one end of the spring 5 abuts against the third gasket 10; the shape of the third gasket 10 in this embodiment is not limited, the third gasket 10 can be disc-shaped, or a protrusion can be provided in the middle thereof to facilitate the positioning of the spring 5, or a groove can be provided to facilitate its matching with the protrusion on the rod end bearing joint.

[0039] In one embodiment, in order to limit the maximum pre-compression amount of the spring 5 and prompt that the nut 3 is screwed in place, matching steps are respectively provided on the inner surface of the support ring portion 130 and the outer surface of the rubber 7.

[0040] When the nut 3 is gradually screwed into the bolt 2, the pre-compression amount of the spring 5 gradually increases, the length of the spring 5 gradually decreases, and the two rubbers 7 gradually approach. When the steps on the rubber 7 abut against the steps in the support ring portion 130, it indicates that the rubber 7 has reached the limit position, and even if the nut 3 is continuously rotated, the spring 5 will not be further compressed, avoiding damage to the rubber 7 caused by excessive pre-tightening force of the spring 5.

[0041] In one embodiment, the shape of the rubber 7 is honeycomb-shaped; the honeycomb-shaped rubber is used in combination with the pre-tightening force of the spring to increase the damping ratio of the first gasket 6, thereby enhancing the vibration isolation and shock resistance performance of the vibration isolator.

[0042] The specific structure of the support 1 is as follows: the support 1 includes a support back portion 110, a support side portion 120, and a support ring portion 130. The two ends of the support back portion 110 respectively extend towards the same side to be provided with the support side portion 120, and one side of the support side portion 120 is connected to the support ring portion 130.

[0043] By providing the support side portion 120 to provide an extension structure for the support ring portion 130, the components such as the struts are kept as far away from the support back portion 110 as possible, providing a larger operating space for the support back portion 110 to connect the equipment and avoiding the problem of component interference.

[0044] In a specific embodiment, in order to reduce the overall weight of the vibration isolator and increase the operating space at the rod end bearing joint 4, a back hollow groove 111 is provided in the middle of the support back portion 110.

[0045] In a specific embodiment, in order to facilitate the installation and connection between the back 110 of the bracket and the device, a plurality of bracket wing parts 140 are arranged on the outer edge of the back 110 of the bracket, and wing part positioning holes 141 are arranged on the bracket wing parts 140.

[0046] In this embodiment, four bracket wing parts 140 are arranged at the four corners of the back 110 of the bracket. Each bracket wing part 140 extends horizontally. The stable connection between the back shock absorber and the device is realized by inserting and installing fixing parts such as screws and bolts in the wing part positioning holes 141.

[0047] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A back isolator with vertical load-bearing capacity, characterized in that Comprising: A bracket (1), with bracket ring parts (130) respectively arranged at both ends of the bracket (1), and a load space formed between the two bracket ring parts (130); A strut, penetrating through the two bracket ring parts (130); A rod end bearing joint (4), one end of which extends into the load space, springs (5) are respectively arranged on both sides of the rod end bearing joint (4), a first gasket (6) is arranged outside any one of the springs (5), rubber (7) is arranged outside any one of the first gaskets (6), the two rubbers (7) are respectively arranged in the two bracket ring parts (130), and the two rubbers (7) are respectively restricted at both ends of the strut; The rod end bearing joint (4), the springs (5), the first gaskets (6) and the rubbers (7) are respectively sleeved on the strut.

2. The back isolator with vertical load-bearing capacity according to claim 1, wherein: A gasket groove (610) is arranged on one side of the first gasket (6), and one end of the spring (5) extends into the gasket groove (610).

3. The back isolator with vertical load-bearing capacity according to claim 1, characterized in that: The strut comprises a bolt (2) and a nut (3), the bolt (2) extends from one side of one of the bracket ring parts (130) to the other side of the other bracket ring part (130), and the nut (3) is located on the other side of the other bracket ring part (130) and is threadedly connected to the bolt (2).

4. The back isolator with vertical load-bearing capacity according to claim 2, characterized in that: A partition plate (8) is arranged between one of the bracket ring parts (130) and the end of the bolt (2) and / or between the other bracket ring part (130) and the nut (3).

5. The back isolator with vertical load-bearing capacity according to claim 4, characterized in that: A second gasket (9) is arranged on the side of any one of the rubbers (7) away from the first gasket (6), and the second gasket (9) is sleeved on the bolt (2).

6. The back isolator with vertical load-bearing capacity according to claim 2, characterized in that: Third gaskets (10) are respectively arranged on both sides of the rod end bearing joint (4), the third gaskets (10) are sleeved on the bolt (2), and one end of the spring (5) abuts against the third gasket (10).

7. The back isolator with vertical load-bearing capacity according to any one of claims 2-6, characterized in that: Mutually matching steps are respectively arranged on the inner surface of the bracket ring part (130) and the outer surface of the rubber (7).

8. The back isolator with vertical load-bearing capacity according to any one of claims 1-6, characterized in that: The shape of the rubber (7) is honeycomb-shaped.

9. The back isolator with vertical load-bearing capacity according to any one of claims 1-6, characterized in that: The bracket (1) comprises a bracket back (110), bracket sides (120), and bracket ring parts (130), the two ends of the bracket back (110) respectively extend towards the same side to be provided with bracket sides (120), and one side of the bracket sides (120) is connected with a bracket ring part (130).

10. The back isolator with vertical load-bearing capacity according to claim 9, characterized in that: A back hollow groove (111) is arranged in the middle of the bracket back (110); and / or, a plurality of bracket wing parts (140) are arranged on the outer edge of the bracket back (110), and wing part positioning holes (141) are arranged on the bracket wing parts (140).

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