WO2023279934A1

WO2023279934A1 - Vibration isolation apparatus

Info

Publication number: WO2023279934A1
Application number: PCT/CN2022/099217
Authority: WO
Inventors: 张孝平; 文青松; 丁德甲; 尚允坤
Original assignee: 常州市大成真空技术有限公司; 深圳市大成精密设备股份有限公司; 东莞市大成智能装备有限公司
Priority date: 2021-07-05
Filing date: 2022-06-16
Publication date: 2023-01-12
Also published as: CN113483046B; CN113483046A

Abstract

The present disclosure relates to a vibration isolation apparatus, comprising a first mounting plate (2), a laminated body (1), and a second mounting plate (3) that are laminated in sequence, a first bolt (4), and a second bolt (5). The first mounting plate (2) comprises a first screw head hole (21) and a first threaded hole (22); the second mounting plate (3) comprises a second screw head hole (32) and a second threaded hole (31); the laminated body (1) comprises elastic layers (11) and rigid layers (12) which are laminated and alternately arranged, and the laminated body (1) is provided with assembly through holes penetrating through the whole laminated body; a screw rod of the first bolt (4) and a screw rod of the second bolt (5) respectively penetrate through the assembly through holes and are respectively in threaded fit with the second threaded hole (31) and the first threaded hole (22); the head of the first bolt (4) is located in the first screw head hole (21) and overlaps with the laminated body (1) in a first direction (Z), and the head of the first bolt (4) is not in contact with the first screw head hole (21); and the head of the second bolt (5) is located in the second screw head hole (32) and overlaps with the laminated body (1) in the first direction (Z), and the head of the second bolt (5) is not in contact with the second screw head hole (32). According to the solution, the vibration isolation apparatus has a good vibration isolation capacity.

Description

Vibration isolation device

cross reference

This disclosure claims the priority of the Chinese patent application with the application number 2021107579570 entitled "Seismic Isolation Device" filed on July 05, 2021, the entire content of which is incorporated herein by reference.

technical field

The present disclosure belongs to the technical field of shock-isolating devices, specifically, the device is composed of laminations of similar components used for isolation of non-elastic middle sheets.

Background technique

At present, in the seismic isolation devices containing laminated bodies, threaded holes are provided on the laminated body, and the first mounting plate and the second mounting plate are respectively connected to the upper and lower ends of the laminated body through the cooperation of bolts and threaded holes. ; and in order to prevent the bolt from transmitting vibration between the first mounting plate and the second mounting plate, the bolt does not completely pass through the laminated body, and the elastic layer and the rigid layer of the laminated body need to be connected with an adhesive.

public content

An object of the present disclosure is to provide a shock isolation device that overcomes one or more problems due to limitations and disadvantages of the related art, at least to some extent.

The present disclosure provides a vibration isolation device, which includes a first mounting plate, a laminated body, a second mounting plate, first bolts and second bolts, the first mounting plate, the laminated body and the second mounting plate The boards are stacked sequentially in the first direction;

The first mounting plate includes a first screw hole and a first threaded hole;

The second mounting plate includes a second screw hole and a second threaded hole;

The laminate includes an elastic layer and a rigid layer, the elastic layer and the rigid layer are stacked and arranged alternately in the first direction, and the laminate has at least two assembly through holes;

The screw rod of the first bolt passes through the assembly through hole, and the screw rod of the first bolt is screwed into the second threaded hole, and the head of the first bolt is located in the first screw hole , the head of the first bolt overlaps with the stacked body in the first direction, and the head of the first bolt does not contact the first screw head hole;

The screw rod of the second bolt passes through the assembly through hole, and the screw rod of the second bolt is screwed into the first threaded hole, and the head of the second bolt is located in the second screw hole , the head of the second bolt overlaps the stacked body in the first direction, and the head of the second bolt does not contact the second screw head hole.

In an exemplary embodiment of the present disclosure,

The screw rod of the first bolt is not in contact with the assembly through hole, and the screw rod of the second bolt is not in contact with the assembly through hole.

In an exemplary embodiment of the present disclosure,

There is a first gap between the screw rod of the first bolt and the inner wall of the assembly through hole, and there is a second gap between the head of the first bolt and the inner wall of the first screw hole;

There is a third gap between the screw rod of the second bolt and the inner wall of the assembly through hole, and there is a fourth gap between the head of the second bolt and the inner wall of the second screw head hole;

Wherein, the second gap is larger than the first gap, and the fourth gap is larger than the third gap.

In an exemplary embodiment of the present disclosure,

A ratio between the second gap and the first gap ranges from 2 to 10; and a ratio between the fourth gap and the third gap ranges from 2 to 10.

In an exemplary embodiment of the present disclosure,

The thickness of the head of the first bolt in the first direction is a first thickness, the depth of the first screw head hole in the first direction is a first depth, and the first thickness is less than the the first depth;

The thickness of the head of the second bolt in the first direction is a second thickness, the depth of the second screw head hole in the first direction is a second depth, and the second thickness is less than the Describe the second depth.

In an exemplary embodiment of the present disclosure, the vibration isolation device further includes a first spacer and a second spacer;

The first gasket is fixed on the laminated body, and the first gasket is clamped between the laminated body and the first mounting plate, and clamped on the head of the first bolt Between the laminated body, the first gasket surrounds the screw rod of the first bolt;

The second gasket is fixed on the laminate, and the second gasket is clamped between the laminate and the second mounting plate, and clamped on the head of the second bolt Between the laminated body, the second gasket surrounds the screw rod of the second bolt;

Wherein, the difference between the first depth and the first thickness is a first difference, and the ratio between the first depth and the first difference ranges from 2 to 5; the second depth and The difference of the second thickness is a second difference, and the ratio between the second depth and the second difference ranges from 2 to 5.

In an exemplary embodiment of the present disclosure, the vibration isolation device further includes a first spacer and a second spacer,

The first washer is assembled on the screw rod of the first bolt and clamped between the head of the first bolt and the laminated body, the first washer is located in the hole of the first screw head and the first washer is not in contact with the first screw head hole, the thickness of the first washer in the first direction is a third thickness, and the first thickness and the third The sum of the thicknesses is the first sum;

The second washer is assembled on the screw rod of the second bolt and clamped between the head of the second bolt and the laminated body, the second washer is located in the hole of the second screw head and the second gasket is not in contact with the second screw head hole, the thickness of the second gasket in the first direction is the fourth thickness, and the second thickness is the same as the fourth The sum of the thicknesses is the second sum;

Wherein, the difference between the first depth and the first sum is a third difference, and the ratio between the first depth and the third difference ranges from 2 to 5; the second depth and The difference of the second sum is a fourth difference, and the ratio between the second depth and the fourth difference ranges from 2 to 5.

In an exemplary embodiment of the present disclosure,

The second mounting plate also has a second mounting hole, the second mounting hole has a counterbore section and a via section, the counterbore section and the via section are connected and coaxially arranged, the counterbore The segment is located on the side of the via segment close to the laminate, and the aperture of the counterbore segment is larger than the aperture of the via segment;

The vibration isolation device further includes a fourth bolt, the head of the fourth bolt is located in the counterbore section of the second installation hole and has a space between the stacked body, and the fourth bolt The screw rod passes through the through-hole section of the second mounting hole for connecting with a carrier.

In an exemplary embodiment of the present disclosure,

The first bolts are provided with at least four, and are located in the central area of the second mounting plate, the first bolts, the first screw hole, the assembly through hole and the second threaded hole one-to-one correspondence;

The second bolts are provided with at least four and are located at the edge area of the second mounting plate. The second bolts, the second screw hole, the assembly through hole and the first threaded hole are one One to one correspondence.

In an exemplary embodiment of the present disclosure, in the laminated body, the number of the elastic layers is greater than the number of the rigid layers, and the difference between the numbers of the elastic layers and the rigid layers is 1.

The vibration isolation device of the disclosed scheme has the following beneficial effects:

In the present disclosure, the head of the first bolt is located in the first screw head hole of the first mounting plate, the screw rod of the first bolt penetrates the stacked body and is threadedly engaged with the second threaded hole of the second mounting plate, and the first bolt The head of the bolt overlaps the stacked body in the first direction, that is, the head of the first bolt cannot penetrate into the interior of the stacked body with its screw rod, so that the stacked body can be clamped on the second installation between the plate and the head of the first bolt to realize the connection between the laminate and the second mounting plate; while the head of the second bolt is located in the second screw head hole of the second mounting plate, and the screw of the second bolt penetrates the stack body and threaded with the first threaded hole of the first mounting plate, and the head of the second bolt overlaps with the stacked body in the first direction, that is to say, the head of the second bolt cannot follow its screw Penetrating into the inside of the laminated body, so that the laminated body can be clamped between the first mounting plate and the head of the second bolt, so as to realize the connection between the laminated body and the first mounting plate.

Based on the above, it can be seen that the present disclosure requires at least two bolts, ie, a first bolt and a second bolt, to realize the connection of the first installation board, the laminated body and the second installation board. Wherein, since the screw rod of the first bolt and the screw rod of the second bolt penetrate the laminated body, and the head of the first bolt cooperates with the second mounting plate and the head of the second bolt cooperates with the first mounting plate to clamp the laminated body, Therefore, this design can not only avoid dislocation and separation between the elastic layer and the rigid layer in the laminate, but also save the use of an adhesive between the elastic layer and the rigid layer, thereby reducing costs.

In addition, the head of the first bolt of the present disclosure is not in contact with the first screw hole of the first mounting plate, and the head of the second bolt is not in contact with the second screw hole of the second mounting plate, that is, the first A bolt can pass through the laminated body and be threaded with the second mounting plate, but not in direct contact with the first mounting plate, and a second bolt can penetrate the stacked body and be threaded with the first mounting plate, but not in direct contact with the second mounting plate ; This design can block or alleviate the first bolt and the second bolt to transmit vibration between the first mounting plate and the second mounting plate; and the first bolt is directly connected with the second mounting plate, and the second bolt is directly connected with the first mounting plate The plate connection, compared with the scheme of directly connecting the bolts to the laminated body with threads, avoids the situation that the bolts are directly connected to the laminated body, which is prone to unstable connection relations, and improves the connection stability of the isolation device; in addition, the first bolt and the second The two bolts penetrating through the laminated body can also limit the horizontal deformation of the laminated body to avoid excessive horizontal deformation.

Other features and advantages of the present disclosure will become apparent from the following detailed description, or in part, be learned by practice of the present disclosure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure. Apparently, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings according to these drawings without creative efforts.

FIG. 1 shows a schematic diagram of a three-dimensional structure of a shock isolation device according to an embodiment of the present disclosure;

Fig. 2 shows a schematic plan view of the seismic isolation device described in Fig. 1;

Fig. 3 shows a schematic cross-sectional view of the seismic isolation device described in Fig. 2 in the A-A direction;

Fig. 4 shows a schematic diagram of the positional relationship between the first mounting plate, the laminate and the second mounting plate in the shock-isolating device described in Fig. 3;

Fig. 5 shows a schematic cross-sectional view of the shock-isolating device described in Fig. 2 in the J-J direction;

FIG. 6 shows a schematic diagram of the positional relationship among the first mounting plate, the laminated body and the second mounting plate in the shock isolation device described in FIG. 5 .

detailed description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, means, steps, etc. may be employed. In other instances, well-known methods, apparatus, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

The present disclosure will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that the technical features involved in the various embodiments of the present disclosure described below may be combined with each other as long as they do not constitute conflicts with each other. The embodiments described below by referring to the figures are exemplary and are intended to explain the present disclosure and should not be construed as limiting the present disclosure.

An embodiment of the present disclosure provides a vibration isolation device, which can be used for vibration isolation in precision equipment such as photovoltaic production, thin film module production, and etching, but is not limited thereto, and can also be used in other equipment fields.

As shown in Figure 1, the shock isolation device of the embodiment of the present disclosure may include a first mounting plate 2, a laminated body 1 and a second mounting plate 3 stacked in sequence in the first direction Z, and the shock isolation device also includes a first bolt 4 and the second bolt 5, the first bolt 4 and the second bolt 5 can connect the first mounting plate 2, the laminated body 1 and the second mounting plate 3 together.

Wherein, as can be seen from FIGS. 1 to 4 , the first mounting plate 2 may include a first screw hole 21 and a first threaded hole 22; the second mounting plate 3 may include a second screw hole 32 and a second threaded hole 31; The laminated body 1 may include elastic layers 11 and rigid layers 12 , and the elastic layers 11 and rigid layers 12 are stacked and arranged alternately in the first direction Z.

In addition, the laminated body 1 may have an assembly through hole penetrating the laminated body 1 in the first direction Z, that is, the assembled through hole may penetrate all the elastic layers 11 and all the rigid layers 12 of the laminated body 1; in other words, as shown in FIG. 4 As shown, the mounting through holes may include a first through hole 111 located in the elastic layer 11 and a second through hole 121 located in the rigid layer 12 .

For example, the first through hole 111 of the elastic layer 11 and the second through hole 121 of the rigid layer 12 can be coaxially arranged. It should be understood that the axes of the first through hole 111 and the second through hole 121 are in the first Extending in the direction Z; wherein, the first through hole 111 and the second through hole 112 can be circular holes, and the radius of the first through hole 111 of the elastic layer 11 can be equal to the radius of the second through hole 121 of the rigid layer 12, But it is not limited to this, and it can also be different; in addition, the first through hole 111 and the second through hole 112 are not limited to round holes, they can also be square holes or waist-shaped holes, etc., depending on the specific situation.

In the embodiment of the present disclosure, at least two assembly through holes can be provided in the laminated body 1; specifically, as shown in FIG. Thread fit; the head of the first bolt 4 can be located in the first screw hole 21 and overlap with the laminated body 1 in the first direction Z, and the head of the first bolt 4 can be located in the first screw hole 21 When inside, it is not in contact with the first screw head hole 21, that is: the head of the first bolt 4 is not in direct contact with the first mounting plate 2; while the screw rod of the second bolt 5 passes through another assembly through hole and connects with the first screw thread The holes 22 are threaded, the head of the second bolt 5 is located in the second screw hole 32 and overlaps with the laminated body 1 in the first direction Z, and the head of the second bolt 5 is located in the second screw hole 32 is not in contact with the second screw head hole 32, that is: the head of the second bolt 5 is not in direct contact with the second mounting plate 3.

In the present disclosure, the head of the first bolt 4 is located in the first screw hole 21 of the first mounting plate 2, and the screw rod of the first bolt 4 penetrates the stacked body 1 and connects with the second threaded hole 31 of the second mounting plate 3. Threaded fit, and the head of the first bolt 4 overlaps with the stacked body 1 in the first direction Z, that is to say, the orthographic projection of the head of the first bolt 4 in the first direction Z can be located in the stacked body 1 above, that is: the head of the first bolt 4 can rest on the laminated body 1, and the head of the first bolt 4 cannot penetrate into the interior of the laminated body 1 along with its screw rod, so that the laminated body 1 can be clamped on Between the second mounting plate 3 and the head of the first bolt 4 to realize the connection between the laminated body 1 and the second mounting plate 3; and the head of the second bolt 5 is located in the second screw hole of the second mounting plate 3 32, the screw rod of the second bolt 5 penetrates the stacked body 1 and is screwed into the first threaded hole 22 of the first mounting plate 2, and the head of the second bolt 5 overlaps with the stacked body 1 in the first direction Z. , that is to say, the orthographic projection of the head of the second bolt 5 in the first direction Z can be located on the laminated body 1, that is, the head of the second bolt 5 can rest on the laminated body 1, and the head of the second bolt 5 The head cannot penetrate into the inside of the laminated body 1 along with its screw rod, so that the laminated body 1 can be clamped between the first mounting plate 2 and the head of the second bolt 5, so that the laminated body 1 and the first Mounting plate 2 connections.

Based on the above, it can be seen that the present disclosure requires at least two bolts, namely: the first bolt 4 and the second bolt 5 , to realize the connection of the first mounting plate 2 , the laminated body 1 and the second mounting plate 3 . Wherein, since the screw rod of the first bolt 4 and the screw rod of the second bolt 5 penetrate the laminated body 1, and the head of the first bolt 4 cooperates with the second mounting plate 3 and the head of the second bolt 5 fits with the first mounting plate 2 Cooperate with the laminated body 1, so this design can not only avoid the misalignment and separation between the elastic layer 11 and the rigid layer 12 in the laminated body 1, but also save the adhesive between the elastic layer 11 and the rigid layer 12 use, reduce costs.

In the embodiment of the present disclosure, the head of the first bolt 4 is not in contact with the first screw head hole 21 of the first mounting plate 2, and the head of the second bolt 5 is not in contact with the second screw head of the second mounting plate 3. The hole 32 contacts, that is to say, the first bolt 4 can pass through the laminated body 1 and be screwed with the second mounting plate 3, but not directly contact with the first mounting plate 2, and the second bolt 5 can penetrate the laminated body 1 and be connected with the second mounting plate 3. A mounting plate 2 is threaded, but not in direct contact with the second mounting plate 3; this design can block or relieve the first bolt 4 and the second bolt 5 from transmitting vibration between the first mounting plate 2 and the second mounting plate 3 and the first bolt 4 is directly connected with the second mounting plate 3, and the second bolt 5 is directly connected with the first mounting plate 2, which avoids the situation that the bolt is directly connected with the laminated body 1 and thus is prone to unstable connection relationship, and improves the isolation In addition, the first bolt 4 and the second bolt 5 penetrate the laminated body 1, which can also limit the horizontal deformation of the laminated body 1, and avoid excessive horizontal deformation.

For example, the holes mentioned in the embodiments of the present disclosure can all be circular holes, but not limited thereto, and can also be other shapes, depending on the specific circumstances; the present disclosure can be described in detail by taking the circular holes as an example.

With reference to shown in Figure 4, the radius of an assembly through hole can be less than the radius of the first screw hole 21, and greater than the radius of the second threaded hole 31; the radius of another assembly through hole can be less than the radius of the second screw hole 32 , and greater than the radius of the first threaded hole 22 .

It should be noted that the axes of the first threaded hole 21 , the first threaded hole 22 , the second threaded hole 32 and the second threaded hole 31 may all extend in the first direction Z.

In addition, the first through hole 111, the second through hole 121, the first screw hole 21 and the second screw hole 32 mentioned in the embodiment of the present disclosure can all be straight holes, namely: the first through hole 111, the second through hole The diameters of the two through holes 121, the first screw hole 21 and the second screw hole 32 in the axial direction are constant to reduce the difficulty of processing and assembly, but not limited thereto. The first through hole 111, the second through hole The diameters of the hole 121 , the first screw hole 21 and the second screw hole 32 in the axial direction may also change gradually, depending on the specific circumstances.

Illustratively, the first through hole 111, the second through hole 121, the first screw hole 21 and the second screw hole 32 in the embodiment of the present disclosure may be light holes, that is, holes whose walls are not provided with threads; and The first threaded hole 22 and the second threaded hole 31 are holes with threaded walls.

Since the radius of the assembly through hole of the aforementioned laminated body 1 is greater than the radius of the threaded hole, and the radius of the screw rod in the bolt is basically the same; 111 and the second through hole 121) can be greater than the radius of the screw rod in the bolt (that is: the first bolt 4 and the second bolt 5), in other words, there is a gap between the screw rod of the first bolt 4 and the inner wall of the assembly through hole, and the second There is also a gap between the screw of the bolt 5 and the inner wall of the assembly through hole, so that when the bolt is threaded with the threaded hole of the mounting plate, the screw of the first bolt 4 and the screw of the second bolt 5 are not in contact with the assembly through hole , that is: the screw of the first bolt 4 and the screw of the second bolt 5 are not in contact with the laminated body 1, so as to avoid deformation or damage of the laminated body 1 due to local force.

It should be understood that when the radius of the first through hole 111 of the elastic layer 11 is not equal to the radius of the second through hole 121 of the rigid layer 12, the radius of the assembly through hole of the aforementioned laminated body 1 is larger than that of the screw in the bolt. The radius of means that the smallest radius among the radius of the first through hole 111 of the elastic layer 11 and the radius of the second through hole 121 of the rigid layer 12 is greater than the radius of the screw in the bolt.

For example, as shown in Fig. 1, Fig. 3 to Fig. 6, in the laminated body 1, the number of elastic layers 11 can be greater than the number of rigid layers 12, and the difference between the number of elastic layers 11 and rigid layers 12 is 1, As mentioned above, the elastic layers 11 and the rigid layers 12 are alternately stacked in the laminated body 1, so it can be seen that when the number of the elastic layers 11 is greater than the number of the rigid layers 12, and the difference between the numbers of the elastic layers 11 and the rigid layers 12 is 1 , the film layers on the outermost sides of the laminate 1 in the first direction Z are both elastic layers 11, that is, the film layers in the laminate 1 that are in contact with the first mounting plate 2 are elastic layers 11, and the film layers that are in contact with the second mounting plate 2 are elastic layers 11. The film layer in contact with the plate 3 is also an elastic layer 11, which can improve the shock absorption capacity of the shock isolation device.

It should be noted that the number of elastic layers 11 in the laminated body 1 is not limited to the two shown in Figs. To the one shown in Figure 6, more can also be set; in addition, the number of elastic layers 11 in the laminated body 1 is not limited to be greater than the number of rigid layers 12, also can be less than or equal to the number of rigid layers 12, depending on the specific circumstances Certainly.

For example, the elastic layer 11 in the embodiment of the present disclosure may at least include rubber, which not only improves its elasticity, but also reduces the cost. Specifically, the rubber may include ethylene-propylene rubber (EPR, EPDM), nitrile rubber (NBR), butyl rubber, halogenated butyl rubber, neoprene rubber (CR), natural rubber, pentadiene rubber (IR ), styrene-butadiene rubber (SBR) or butadiene rubber (BR), but not limited to this, as long as the elastic layer 11 can be guaranteed to have sufficient elasticity; the rigid layer 12 can include fiberglass board, bakelite, nylon board At least one of them can not only improve its rigidity, but also reduce the cost, but it is not limited to this, and metal, ceramics, stone slabs, etc. can also be used.

In some embodiments of the present disclosure, the above-mentioned first screw hole 21, the assembly through hole and the second threaded hole 31 are arranged opposite and coaxial in the first direction Z, and the second screw hole 32, the assembly The through hole and the first threaded hole 22 can also be arranged on the first direction Z opposite and coaxial. On the one hand, this design reduces the difficulty of processing the holes in each structure in the shock-isolating device, and on the other hand, it is convenient for the bolt to connect the first mounting plate 2. The laminated body 1 and the second mounting plate 3 are installed in alignment.

As shown in FIG. 3 and FIG. 4, there is a first gap d between the screw rod of the first bolt 4 and the inner wall of the assembly through hole in the laminated body 1, and there is a gap d between the head of the first bolt 4 and the inner wall of the first screw hole. There is a second gap c, and there is a third gap b between the screw rod of the second bolt 5 and the inner wall of the assembly through hole in the laminate, and there is a fourth gap between the head of the second bolt 5 and the second screw head hole 32 a.

Wherein, the second gap c mentioned above can be larger than the first gap d, and the fourth gap a is larger than the third gap b, so that when the laminated body 1 is deformed to a certain extent in the transverse direction (that is, the direction perpendicular to the axis of the assembly through hole) , the laminated body 1 can be in contact with the screw of the first bolt 4 or the second bolt 5 first, and the lateral deformation of the laminated body 1 will not continue to increase under the restriction of the first bolt 4 and the second bolt 5, and the laminated body 1 It can gradually return to its original state due to its own elasticity; and at this time, the head of the first bolt 4 can still remain out of contact with the inner wall of the first screw head hole 21 (that is: not in contact with the first mounting plate 2), and the second The head of the bolt 5 can still be kept out of contact with the inner wall of the second screw head hole 32 (that is, not in contact with the second mounting plate 3), so as to realize the isolation of vibration, that is, to block or relieve the pressure of the first mounting plate 2. Vibration conduction with the second mounting plate 3 .

Wherein, the aforementioned ratio between the second gap c and the first gap d can range from 2 to 10, for example: the ratio between the second gap c and the first gap d can be 2, 4, 6, 8 , 10, etc.; and the ratio range between the fourth gap a and the third gap b can be 2 to 10, for example: the ratio between the fourth gap a and the third gap b can be 2, 4, 6, 8 . The hole walls of the second screw head hole 32 are in contact, thereby realizing vibration isolation.

It should be noted that the structures of the first bolt 4 and the second bolt 5 can be identical, that is, the first bolt 4 and the second bolt 5 can be of the same type, and the diameter of the first screw hole 21 is the same as that of the second screw hole. The apertures of the holes 32 can be equal, therefore, the aforementioned first gap d and the third gap b can be equal, the second gap c can be equal to the fourth gap a, but not limited thereto, the first gap d and the third gap can be equal b may also be unequal, and the second gap c and the fourth gap a may also be unequal, depending on specific circumstances.

For example, the value range of the aforementioned first gap d and the third gap b can be 0.2 mm to 1 mm, for example: the value of the first gap d and the third gap b can be 0.2 mm, 0.4 mm, 0.6mm, 0.8mm, 1mm, etc., in order to avoid the contact between the screw rod of the bolt and the laminated body 1, and at the same time avoid the situation that the laminated body 1 cannot recover from elastic deformation due to excessive lateral deformation of the laminated body 1; The value range of the second gap c and the fourth gap a can be 2mm to 10mm, for example: the value of the second gap c and the fourth gap a can be 2mm, 4mm, 6mm, 8mm, 10mm, etc., for bolts Provide lateral movement space to avoid transmission of vibration when it moves horizontally.

It should be noted that the first gap d and the third gap b, the second gap c and the fourth gap a are not limited to the value ranges mentioned above, and can also be within other value ranges, as long as it can be guaranteed to avoid the laminated body 1. While the lateral deformation is too large, it is also possible to avoid the contact between the head of the first bolt 4 and the wall of the first screw hole 21 and the contact between the head of the second bolt 5 and the wall of the second screw hole 32. Can.

In some embodiments of the present disclosure, the thickness of the head of the first bolt 4 in the first direction Z is the first thickness, and the depth of the first screw head hole 21 in the first direction Z is the first depth e, where The first thickness may be smaller than the first depth e; and the thickness of the head of the second bolt 5 in the first direction Z is the second thickness, and the depth of the second screw head hole 32 in the first direction Z is the second depth n , this second thickness is smaller than the second depth n, so that the design can provide the first bolt 4 and the second bolt 5 with a longitudinal (that is: the first direction Z mentioned above) activity space, so as to avoid transmitting vibration when they move longitudinally, Therefore, the shock-isolation effect of the shock-isolation device can be improved.

In some embodiments of the present disclosure, in addition to the aforementioned first mounting plate 2, second mounting plate 3, laminated body 1, first bolt 4 and second bolt 5, the vibration isolation device is as shown in FIG. 3 As shown, a first spacer 9a and a second spacer 9b may also be included.

For example, as shown in FIG. 3 , the first washer 9a can be assembled on the screw rod of the first bolt 4 and clamped between the head of the first bolt 4 and the laminated body 1; wherein, the first washer 9a can be Located in the first screw hole 21, and the first gasket 9a is not in contact with the first screw hole 21, so as to achieve vibration isolation; similarly, the second gasket 9b can be assembled on the screw rod of the second bolt 5 and Clamped between the head of the second bolt 5 and the laminated body 1; wherein, the second gasket 9b can be located in the second screw hole 32, and the second gasket 9b is not in contact with the second screw hole 32, In order to achieve vibration isolation.

In this embodiment, the thickness of the first spacer 9a in the first direction Z may be a third thickness, and the sum of the third thickness and the aforementioned first thickness may be the first sum, and the second spacer 9b The thickness in the first direction Z can be the fourth thickness, and the sum of the fourth thickness and the aforementioned second thickness can be the second sum; wherein, the difference between the first depth e and the first sum is the third Difference k, the ratio between the first depth e and the third difference k ranges from 2 to 5, for example: the ratio between the first depth e and the third difference k can be 2, 3, 4, 5, etc. etc.; the difference between the second depth n and the second sum is the fourth difference m, and the ratio between the second depth n and the fourth difference m ranges from 2 to 5, such as: the second depth n and the fourth difference The ratio between the values m can be 2, 3, 4, 5, etc., so that the design can better provide the longitudinal movement space for the bolt, and avoid the transmission of vibration during the longitudinal movement. It should be understood that the first depth e The ratio between the third difference k, the ratio between the second depth n and the fourth difference m is not limited to the aforementioned value range, and can also be within other value ranges, as long as the bolt can be prevented from being transmitted during longitudinal movement. Just shake.

It should be understood that the number of the first washers 9a in the embodiment of the present disclosure may be equal to the number of the first bolts 4, and the first washers 9a may correspond to the first bolts 4 one-to-one; similarly, the second washers The number of 9b can be equal to the number of the second bolts 5 , and the second washers 9b can correspond to the second bolts 5 one by one.

It should be noted that the installation method of the first gasket 9a and the second gasket 9b is not limited to the above-mentioned forms, and may also be the following assembly forms:

The first gasket 9a is fixed on the laminated body 1, and the first gasket 9a is clamped between the laminated body 1 and the first mounting plate 2, and clamped between the head of the first bolt 4 and the laminated body 1 , the first gasket 9a surrounds the screw rod of the first bolt 4; the second gasket 9b is fixed on the stack 1, and the second gasket 9b is clamped between the stack 1 and the second mounting plate 3, and clamped Between the head of the second bolt 5 and the laminated body 1, the second gasket 9b surrounds the screw rod of the second bolt 5; in this assembly mode, the gasket will not move together with the bolt; wherein, the first depth e The difference with the first thickness can be the first difference k, the ratio range between the first depth e and the first difference k can be 2 to 5, for example: between the first depth e and the first difference k The ratio can be 2, 3, 4, 5, etc.; the difference between the second depth n and the second thickness is the second difference m, and the ratio between the second depth n and the second difference m ranges from 2 to 5. For example: the ratio between the second depth n and the second difference m can be 2, 3, 4, 5, etc., so that the design can better provide the longitudinal movement space for the bolt, and avoid its It should be understood that the ratio between the first depth e and the first difference k, the ratio between the second depth n and the second difference m are not limited to the aforementioned range of values, and can also be in other values Within the range, as long as the bolt can avoid the transmission of vibration during longitudinal movement.

Based on the above scheme, by adding a first washer 9a between the head of the first bolt 4 and the laminated body 1, and adding a second washer 9b between the head of the second bolt 5 and the laminated body, the second washer can be enlarged. The contact area between one bolt 4 and the laminated body 1 and between the second bolt 5 and the laminated body 1 is reduced, thereby reducing the pressure between them.

For example, the first gasket 9 a and the second gasket 9 b can be spring gaskets, rubber gaskets, etc., but are not limited thereto, and can also be other types of gaskets.

In the embodiment of the present disclosure, the thickness of the first mounting plate 2 (ie: the aforementioned first depth e) ranges from the value range and the thickness of the second mounting plate 3 (ie: the aforementioned second depth n) The value range can be 15mm to 30mm, for example: the thickness of the first mounting plate 2 and the thickness of the second mounting plate 3 can be 15mm, 20mm, 25mm, 30mm, etc., but not limited to this, and can also be in other value ranges within, depending on the specific circumstances.

It should be noted that the thickness of the first installation board 2 may be equal to the thickness of the second installation board 3 , but it is not limited thereto, and may also be unequal, depending on specific circumstances.

As an example, multiple first bolts 4 and second bolts 5 mentioned above can be provided, so that the design can ensure that the laminated body 1 is more firmly clamped between the first mounting plate 2 and the second mounting plate 3, thereby Ensure the connection stability of the vibration isolation device.

It should be understood that the number of the first screw holes 21 and the second screw holes 31 mentioned above can be equal to the number of the first bolts 4; the number of the second screw holes 32 and the first screw holes 22 can be equal to the number The quantity of the two bolts 5 is equal, and the quantity of the assembly through hole in the laminated body 1 can be the sum of the quantity of the first bolt 4 and the second bolt 5; the first bolt 4, the first screw head hole 21, the assembly through hole and the second bolt The two threaded holes 31 are in one-to-one correspondence, and the second bolt 5 , the second screw head hole 32 , the assembly through hole and the first threaded hole 22 are in one-to-one correspondence.

For example, there may be at least four first bolts 4 located at the center of the second mounting plate 3 ; at least four second bolts 5 may be provided at the edge of the second mounting plate 3 . Specifically as shown in Figures 1 and 2, there are four first bolts 4 and four second bolts 5, and correspondingly, the second mounting plate 3 can have four second screw holes 32 and four second threads Holes 31, wherein four second screw holes 32 are respectively located at the four corners of the second mounting plate 3, and the four second screw holes 31 are evenly distributed in the area between the four second screw holes 32, so that The design not only ensures the connection stability of the shock-isolation device, but also ensures that the shock-isolation device is evenly stressed, thereby prolonging its service life.

It should be noted that the number of the first bolts 4 and the second bolts 5 is not limited to four, and two, six, eight, etc. may also be provided, depending on specific circumstances.

In some embodiments of the present disclosure, as shown in FIGS. 3 to 6 , the aforementioned first mounting plate 2 may have a first mounting area 2a and two second mounting areas 2b, and the two second mounting areas 2b It can be located on opposite sides of the first installation area 2a in the second direction X, and the second direction X is perpendicular to the aforementioned first direction Z; specifically, it can be seen from FIGS. 3 and 4 that the first installation area 2a has the aforementioned first screw head hole 21 and first threaded hole 22, and the second installation area 2b may have a first installation hole 23. It should be noted that this first installation hole 23 may have an axis in the first A straight hole extending in the direction Z; and the shock isolation device can also include a third bolt 6 that matches the first mounting hole 23, and the head of the third bolt 6 is closer to the second mounting plate 3 than its screw rod, and The screw rod of the third bolt 6 passes through the first mounting hole 23 for connecting with a carrier (not shown in the figure).

In the embodiment of the present disclosure, the second installation area 2b is used to cooperate with the carrier body, and by setting a second installation area 2b on opposite sides of the first installation area 2a respectively, it can ensure that the first installation board 2 Stability of the connection to the carrier.

For example, each second installation area 2b can be provided with a plurality of first installation holes 23, three as shown in FIG. 2, but not limited thereto, two or more can also be provided; A mounting hole 23 is arranged at intervals in the second mounting area 2b in the third direction Y. It should be noted that the third direction Y is perpendicular to the first direction Z and the second direction X at the same time. Wherein, there may be multiple third bolts 6 , specifically, the third bolts 6 may correspond to the first mounting holes 23 one by one, such design can improve the connection stability between the first mounting plate 2 and the carrier.

For example, as shown in Fig. 1, Fig. 3 and Fig. 5, a third washer 9c may be provided between the head of the third bolt 6 and the first mounting plate 2, and the third washer 9c may be a spring washer or Rubber gaskets, etc., but not limited thereto. Wherein, as shown in Fig. 1, Fig. 3 and Fig. 5, an adjusting nut 9e may also be provided between the heads of some third bolts 6 and the first mounting plate 2, so as to adjust the threaded connection between the third bolt 6 and the carrier The length can be matched with different bearing bodies and the versatility of the vibration isolation device can be improved.

For example, as shown in Fig. 3 to Fig. 6, the second installation board 3, the laminated body 1 and the first installation 2a overlap in the first direction Z, and the second installation board 3, the laminated body 1 and the second installation There is no overlap in the area 2b. Specifically, referring to FIG. 5 and FIG. 6, it can be seen that the part of the first mounting board 2 that overlaps with the stacked body 1 and the second mounting board 3 in the first direction Z is defined as the first mounting area 2a, the part that does not overlap with the laminated body 1 and the second mounting plate 3 in the first direction Z is defined as the second mounting area 2b; and the second mounting plate 3 can also have a second mounting hole 33, this second mounting The hole 33 has a counterbore section 331 and a through hole section 332. The counterbore section 331 and the through hole section 332 are connected and coaxially arranged. It should be noted that the counterbore section 331 and the through hole section 332 are both axes in the first direction Straight hole extending on Z.

Wherein, the counterbore section 331 is located on the side of the via section 332 close to the stacked body 1, and the radius of the counterbore section 331 is larger than the diameter of the via section 332, that is to say, the second mounting hole 33 can be a stepped through hole, which The axis extends in the first direction Z; and the shock-isolating device may also include a fourth bolt 7 cooperating with the second mounting hole 33; the head of the fourth bolt 7 is located in the counterbore section 331 of the second mounting hole 33 and There is a space between the laminated body 1 (that is: not in contact with the laminated body 1) to reduce vibration conduction, and the screw rod of the fourth bolt 7 passes through the hole section 332 of the second mounting hole 33 for use with another bearing Body (not shown in the figure) connection.

For example, the second mounting plate 3 can be provided with a plurality of second mounting holes 33, four as shown in Figures 1 and 2, but not limited thereto, two or more can also be provided; for example, multiple The second mounting holes 33 can be evenly distributed in the central area of the second mounting plate 3 . Wherein, the fourth bolt 7 can also be multiple, specifically, the fourth bolt 7 can correspond to the second mounting hole 33 one-to-one, and this design can improve the connection stability between the second mounting plate 3 and the carrier.

For example, as shown in FIG. 5, a fourth washer 9d may be provided between the head of the fourth bolt 7 and the passage section 332 of the second mounting hole 33, and the fourth washer 9d may be a spring washer or Rubber gaskets, etc., but not limited thereto.

In some embodiments of the present disclosure, as shown in FIG. 1, FIG. 2, FIG. 5 and FIG. More than one can be set, but not limited to this. It should be noted that the isolating device may also include a positioning column (not shown) that cooperates with the bearing positioning hole 34, but is not limited thereto. The isolation device is used in conjunction with it.

In some embodiments of the present disclosure, as shown in FIG. 1, FIG. 2, FIG. 5 and FIG. At least one assembly positioning hole 10 positioned between them may be provided.

It should be understood that, as shown in FIG. 1, FIG. 2 and FIG. , the stacked body 1 and the second mounting plate 3 can play a positioning role in the process of assembling the three, specifically, they can be located in the assembly positioning hole 10 before the vibration isolation device and the carrier are assembled, but the vibration isolation device and the load bearing After the body is assembled, it is necessary to extract the positioning pin 8 from the assembly positioning hole 10 of the shock-isolating device, so as to avoid vibration from being transmitted through the positioning pin 8, that is, to ensure the shock-isolation effect during the use of the shock-isolating device.

In addition, it should be understood that the above-mentioned positioning pin 8 may be used as a part of the isolating device, but may not be part of the isolating device, that is, it may be matched with the isolating device.

In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "thickness", "upper", "lower", etc. is based on the orientation or position shown in the drawings. The relationship is only for the convenience of describing the present disclosure and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present disclosure.

In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second" and "third" may explicitly or implicitly include one or more of these features. In the description of the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

In this disclosure, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it may be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present disclosure according to specific situations.

In the description of this specification, descriptions with reference to the terms "some embodiments", "exemplarily" and the like mean that specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or embodiment of the present disclosure. example. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present disclosure, and those skilled in the art can understand the above-mentioned embodiments within the scope of the present disclosure. The embodiments are changed, modified, replaced and modified, so any changes or modifications made according to the content of the present disclosure shall fall within the scope covered by the disclosed patent.

Claims

A vibration isolation device, which includes a first mounting plate, a laminated body, a second mounting plate, first bolts and second bolts, the first mounting plate, the laminated body and the second mounting plate One direction is stacked in sequence;

The first mounting plate includes a first screw hole and a first threaded hole;

The second mounting plate includes a second screw hole and a second threaded hole;

The laminate includes an elastic layer and a rigid layer, the elastic layer and the rigid layer are stacked and arranged alternately in the first direction, and the laminate has at least two assembly through holes;

The screw rod of the first bolt passes through the assembly through hole, and the screw rod of the first bolt is screwed into the second threaded hole, and the head of the first bolt is located in the first screw hole , the head of the first bolt overlaps with the stacked body in the first direction, and the head of the first bolt does not contact the first screw head hole;

The screw rod of the second bolt passes through the assembly through hole, and the screw rod of the second bolt is screwed into the first threaded hole, and the head of the second bolt is located in the second screw hole , the head of the second bolt overlaps the stacked body in the first direction, and the head of the second bolt does not contact the second screw head hole.
The vibration isolation device according to claim 1, wherein,

The screw rod of the first bolt is not in contact with the assembly through hole, and the screw rod of the second bolt is not in contact with the assembly through hole.
The vibration isolation device according to claim 2, wherein,

There is a first gap between the screw rod of the first bolt and the inner wall of the assembly through hole, and there is a second gap between the head of the first bolt and the inner wall of the first screw hole;

There is a third gap between the screw rod of the second bolt and the inner wall of the assembly through hole, and there is a fourth gap between the head of the second bolt and the inner wall of the second screw head hole;

Wherein, the second gap is larger than the first gap, and the fourth gap is larger than the third gap.
The vibration isolation device according to claim 3, wherein the ratio between the second gap and the first gap ranges from 2 to 10; and the ratio between the fourth gap and the third gap The range is 2 to 10.
The vibration isolation device according to claim 1, wherein,

The thickness of the head of the first bolt in the first direction is a first thickness, the depth of the first screw head hole in the first direction is a first depth, and the first thickness is less than the the first depth;

The thickness of the head of the second bolt in the first direction is a second thickness, the depth of the second screw head hole in the first direction is a second depth, and the second thickness is less than the Describe the second depth.
The vibration isolation device according to claim 5, further comprising a first spacer and a second spacer;

The first gasket is fixed on the laminated body, and the first gasket is clamped between the laminated body and the first mounting plate, and clamped on the head of the first bolt Between the laminated body, the first gasket surrounds the screw rod of the first bolt;

The second gasket is fixed on the laminate, and the second gasket is clamped between the laminate and the second mounting plate, and clamped on the head of the second bolt Between the laminated body, the second gasket surrounds the screw rod of the second bolt;

Wherein, the difference between the first depth and the first thickness is a first difference, and the ratio between the first depth and the first difference ranges from 2 to 5; the second depth and The difference of the second thickness is a second difference, and the ratio between the second depth and the second difference ranges from 2 to 5.
The vibration isolation device according to claim 5, further comprising a first spacer and a second spacer,

The first washer is assembled on the screw rod of the first bolt and clamped between the head of the first bolt and the stacked body, the first washer is located in the hole of the first screw head and the first washer is not in contact with the first screw head hole, the thickness of the first washer in the first direction is a third thickness, and the first thickness and the third The sum of the thicknesses is the first sum;

The second washer is assembled on the screw rod of the second bolt and clamped between the head of the second bolt and the laminated body, the second washer is located in the hole of the second screw head and the second gasket is not in contact with the second screw head hole, the thickness of the second gasket in the first direction is the fourth thickness, and the second thickness is the same as the fourth The sum of the thicknesses is the second sum;

Wherein, the difference between the first depth and the first sum is a third difference, and the ratio between the first depth and the third difference ranges from 2 to 5; the second depth and The difference of the second sum is a fourth difference, and the ratio between the second depth and the fourth difference ranges from 2 to 5.
The vibration isolation device according to claim 1, wherein,

The second mounting plate also has a second mounting hole, the second mounting hole has a counterbore section and a via section, the counterbore section and the via section are connected and coaxially arranged, the counterbore The segment is located on the side of the via segment close to the laminate, and the aperture of the counterbore segment is larger than the aperture of the via segment;

The vibration isolation device further includes a fourth bolt, the head of the fourth bolt is located in the counterbore section of the second installation hole and has a space between the stacked body, and the fourth bolt The screw rod passes through the through-hole section of the second mounting hole for connecting with a carrier.
The vibration isolation device according to claim 8, wherein,

The first bolts are provided with at least four, and are located in the central area of the second mounting plate. The first bolts, the first screw hole, the assembly through hole and the second threaded hole are one one-to-one correspondence;

The second bolts are provided with at least four and are located at the edge area of the second mounting plate. The second bolts, the second screw hole, the assembly through hole and the first threaded hole are one One to one correspondence.
The vibration isolation device according to any one of claims 1 to 9, wherein, in the laminated body, the number of the elastic layers is greater than the number of the rigid layers, and the elastic layers and the rigid layers The quantity difference is 1.