Bolt limiting type rubber vibration isolator

Abstract

The invention provides a bolt limiting type rubber vibration isolator, the number of the vibration isolators is multiple, the vibration isolators are arranged on lugs on the two sides of a controller shell respectively, each vibration isolator comprises a limiting bolt, an unthreaded hole gasket, an internal thread gasket and two rubber pads; the two rubber pads are correspondingly arranged at the upper end and the lower end of the convex lug respectively, an unthreaded hole gasket is arranged between the upper rubber pad and a bolt head of the limiting bolt, the limiting bolt penetrates through the convex lug and the two rubber pads and is in threaded connection with an internal thread gasket, and a thread head of the limiting bolt is an external connection interface. The connector is used for being connected with a controller installation base threaded connector. According to the invention, the vibration reliability, the installation convenience and the use regularity of the controller are greatly improved; the vibration isolator is applied to products such as a controller, has the advantages of being convenient to disassemble and replace, good in maintenance performance and low in manufacturing cost, and can be suitable for batch production.

Description

Technical Field

[0001] The present application belongs to the technical field of diesel engine electronic control, and in particular relates to a bolt-limited rubber vibration isolator. Background Art

[0002] With the development of diesel engine digital technology, there are more and more shell components such as diesel engine controllers and heating drivers, and the compactness requirements are getting higher and higher. The severe vibration of high-strength diesel engines will damage the components in core components such as controllers and heating drivers, causing poor connection at the least and broken pins at the worst, seriously affecting the reliable operation of the equipment. Summary of the invention

[0003] In view of this, the present application aims to propose a bolt-limited rubber vibration isolator to solve the problem that the existing vibration isolators cannot meet the working conditions and seriously affect the reliable operation of the equipment.

[0004] To achieve the above purpose, the technical solution of this application is implemented as follows: The present application provides a bolt-limited rubber vibration isolator, wherein the number of the vibration isolators is multiple and they are respectively arranged on the lugs on both sides of the device housing, each of the vibration isolators comprises a limiting bolt, a light hole washer, an internal thread washer and a rubber pad, wherein the number of the rubber pads is two; The two rubber pads are respectively arranged at the upper and lower ends of the lug, and a light hole washer is arranged between the rubber pad located at the top and the bolt head of the limiting bolt. The limiting bolt passes through the lug and the two rubber pads, and is threadedly connected with the internal threaded washer, wherein the threaded head of the limiting bolt is an external connection interface, which is used to connect with the threaded interface of the equipment mounting base.

[0005] Furthermore, the lugs on both sides are symmetrically arranged, and each lug is provided with an inner hole, and the two rubber pads are symmetrically arranged in the inner hole.

[0006] Furthermore, the rubber pad is a T-shaped structural part with a through hole in the center. The rubber pad includes a radial cylindrical pad and an axial circular pad that are integrally arranged. The diameter of the radial cylindrical pad corresponds to the aperture of the inner hole, the inner end face of the axial circular pad contacts the end face of the lug, and the outer end face of the axial circular pad contacts the smooth hole washer or the internal threaded washer.

[0007] Furthermore, the light hole washer is an annular circular metal sheet with a light hole at the center. The aperture of the light hole is larger than the diameter of the bolt rod. The diameter of the light hole washer is equal to the diameter of the axial circular washer.

[0008] Furthermore, the internal threaded washer is an annular circular metal sheet, a center of which is provided with an anti-slip internal threaded hole, the anti-slip internal threaded hole matches the thread of the thread head, and the diameter of the internal threaded washer is equal to the diameter of the axial circular washer.

[0009] Furthermore, the middle part of the limiting bolt is a bolt rod, the diameter of the threaded head is smaller than the diameter of the bolt rod, a rod shoulder is formed at the connection between the two, the rod shoulder is a step-like structure, and an anti-slip groove is opened at the rod shoulder.

[0010] Furthermore, the anti-slip groove is an annular groove, the bottom diameter of which in the depth direction is smaller than the minor diameter of the thread head, and the width of which is larger than the thickness of the internal thread washer.

[0011] Compared with the prior art, the bolt-limited rubber vibration isolator described in this application has the following beneficial effects: The bolt-limited rubber vibration isolator described in the present application greatly improves the vibration reliability, installation convenience and regularity of use of the controller; the vibration isolator is used in products such as controllers, has the advantages of easy disassembly and replacement, good maintenance performance and low manufacturing cost, and can be adapted to mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 This is a schematic diagram of the installation structure of a bolt-limited rubber vibration isolator and a controller according to an embodiment of the present application; Figure 2 This is a schematic diagram of the detailed structure of a bolt-limited rubber vibration isolator and a controller installation part described in an embodiment of the present application; Figure 3 An exploded view of a bolt-limited rubber vibration isolator according to an embodiment of the present application; Figure 4 This is a schematic diagram of the rubber pad structure described in an embodiment of the present application; Figure 5 This is a schematic diagram of the limiting bolt structure described in an embodiment of the present application.

[0014] Description of reference numerals: 1-controller; 11-lug; 12-inner hole; 2-rubber pad; 21-radial cylindrical pad; 22-axial circular pad; 23-through hole; 3-limiting bolt; 31-bolt head; 32-bolt polished rod; 33-threaded head; 34-rod shoulder; 35-anti-slip groove; 4-bright hole washer; 41-bright hole; 5-internal thread washer; 51-anti-slip internal thread hole. DETAILED DESCRIPTION

[0015] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0016] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] See also Figures 1 to 3 As shown, this embodiment provides a bolt-limited rubber vibration isolator, the number of which is multiple, and they are respectively arranged on the lugs 11 on both sides of the housing of the device (including the controller 1, the driver and other components, and the controller 1 is taken as an example for explanation below), each vibration isolator includes a limiting bolt 3, a light hole 41 washer 4, an internal threaded washer 5 and a rubber pad 2, wherein the number of the rubber pads 2 is two; The two rubber pads 2 are respectively arranged at the upper and lower ends of the lug 11, and a light hole 41 washer 4 is arranged between the upper rubber pad 2 and the bolt head 31 of the limiting bolt 3. The limiting bolt 3 passes through the lug 11 and the two rubber pads 2, and is threadedly connected with the internal threaded washer 5, wherein the threaded head 33 of the limiting bolt 3 is an external connection interface, which is used to connect with the threaded interface of the equipment installation base.

[0018] Specifically, in this embodiment, a bolt-limited rubber vibration isolator assembly consisting of a limiting bolt 3, a light hole 41 washer 4, an internal threaded washer 5 and a rubber pad 2 is provided on the lugs 11 on both sides of the housing of the controller 1. The parts cooperate with each other to meet the requirements in specific environments, such as good vibration isolation effect and high compactness, especially in situations where the specifications of the fixing bolts are as large as possible and the mounting holes are as small as possible.

[0019] When the vibration isolator described in the present application is installed into the lug 11, the parts of the bolt-limited rubber vibration isolator assembly will not fall off, and the threaded head 33 of the assembled limiting bolt 3 is an external connection interface, which is connected to the threaded interface of the controller 1 mounting base.

[0020] The bolt-limited rubber vibration isolator described in this embodiment greatly improves the vibration reliability, installation convenience, and regularity of use of the controller 1; the vibration isolator is used in products such as the controller 1, has the advantages of easy disassembly and replacement, good maintenance performance, and low manufacturing cost, and can be adapted to mass production.

[0021] In some embodiments, Figure 2 As shown, the lugs 11 on both sides are symmetrically arranged, and each lug 11 is provided with an inner hole 12 , and two rubber pads 2 are symmetrically arranged in the inner hole 12 .

[0022] like Figure 4 As shown, the rubber pad 2 is a T-shaped structural member with a through hole 23 in the center. The rubber pad 2 includes a radial cylindrical pad 21 and an axial circular pad 22 that are integrally arranged. The diameter of the radial cylindrical pad 21 corresponds to the aperture of the inner hole 12, the inner end surface of the axial circular pad 22 contacts the end surface of the lug 11, and the outer end surface of the axial circular pad 22 contacts the light hole 41 gasket 4 or the internal threaded gasket 5.

[0023] Specifically, in this embodiment, a plurality of lugs 11 are provided on the outer shell of the controller 1. The thickness of the lugs 11 is a fixed value, which is related to the axial dimensions and dimension chain of each part on the bolt-limited rubber vibration isolator assembly, and controls the axial preload of the T-shaped rubber pad 2. The outer shell of the controller 1 is generally provided with four lugs 11, and the lugs 11 are generally arranged symmetrically relative to the controller 1. Therefore, one controller 1 is generally provided with four bolt-limited rubber vibration isolator assemblies.

[0024] The T-shaped rubber pad 2 is a rubber part, and the T-shaped rubber pad 2 is composed of a radial cylindrical pad 21 and an axial circular pad 22. A through circular hole is provided in the center of the T-shaped rubber pad 2, and the circular hole matches the bolt polished rod 32 on the limit bolt 3; the diameter of the radial cylindrical pad 21 matches the inner hole 12 on the lug 11, the upper and lower end surfaces of the lug 11 contact the inner plane of the axial circular pad 22, and the outer plane of the axial circular pad 22 contacts the polished hole 41 washer 4 or the internal threaded washer 5.

[0025] In some embodiments, Figure 3 As shown, the light hole 41 gasket 4 is an annular round metal sheet, the center of which is provided with a light hole 41, the aperture of the light hole 41 is slightly larger than the diameter of the bolt polished rod 32, and the diameter of the light hole 41 gasket 4 is equivalent to the diameter of the axial circular gasket 22; The internal threaded washer 5 is also an annular round metal sheet, and an anti-slip internal threaded hole 51 is provided in the center thereof. The anti-slip internal threaded hole 51 has the same thread specification as the thread head 33, and is screwed into by the thread head 33 of the limit bolt 3, while preventing the T-shaped rubber pad 2 from slipping out. The diameter of the internal threaded washer 5 is equal to the diameter of the axial circular pad 22.

[0026] In some embodiments, Figure 5As shown, the middle part of the limit bolt 3 is a bolt rod 32, the diameter of the threaded head 33 is smaller than the diameter of the bolt rod 32, and a rod shoulder 34 is formed at the connection between the two. The rod shoulder 34 is a step-like structure, and an anti-slip groove 35 is opened at the rod shoulder 34. The anti-slip groove 35 is an annular groove, and its bottom diameter in the depth direction is smaller than the minor diameter of the threaded head 33, and its width is greater than the thickness of the internal threaded washer 5.

[0027] Specifically, in this embodiment, one end of the limiting bolt 3 is a bolt head 31, the middle part is a bolt rod 32, and the other end is a threaded head 33. The diameter of the threaded head 33 is smaller than that of the bolt rod 32. A rod shoulder 34 is formed at the connection between the two. The rod shoulder 34 is a step, and an anti-slip groove 35 is provided at the rod shoulder 34. The anti-slip groove 35 is an annular groove, the bottom diameter in the depth direction is smaller than the minor diameter of the thread, and the width is greater than the thickness of the internal thread washer 5.

[0028] When assembled, the rod shoulder 34 will abut against the mounting base of the controller 1, thereby limiting the pre-compression amount, ie, the pre-tightening force, of the two T-shaped rubber pads 2.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

[0030] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A bolt-limited rubber vibration isolator, wherein the number of the vibration isolators is multiple and they are respectively arranged on the lugs on both sides of the equipment housing, characterized in that: Each of the vibration isolators comprises a limit bolt, a plain washer, an internally threaded washer and a rubber pad, wherein the number of the rubber pads is two; The two rubber pads are respectively arranged at the upper and lower ends of the lug, and a light hole washer is arranged between the rubber pad located at the top and the bolt head of the limiting bolt. The limiting bolt passes through the lug and the two rubber pads, and is threadedly connected with the internal threaded washer, wherein the threaded head of the limiting bolt is an external connection interface, which is used to connect with the threaded interface of the equipment mounting base.

2. The bolt-limited rubber vibration isolator according to claim 1, characterized in that: The lugs on both sides are symmetrically arranged, and each lug is provided with an inner hole, and the two rubber pads are symmetrically arranged in the inner hole.

3. The bolt-limited rubber vibration isolator according to claim 2 is characterized in that: The rubber pad is a T-shaped structural part with a through hole in the center. The rubber pad includes a radial cylindrical pad and an axial circular pad that are integrally arranged. The diameter of the radial cylindrical pad corresponds to the aperture of the inner hole, the inner end face of the axial circular pad contacts the end face of the lug, and the outer end face of the axial circular pad contacts the smooth hole washer or the internal threaded washer.

4. The bolt-limited rubber vibration isolator according to claim 3 is characterized in that: The light hole washer is an annular round metal sheet with a light hole at its center. The aperture of the light hole is larger than the diameter of the bolt polished rod, and the diameter of the light hole washer is equal to the diameter of the axial circular washer.

5. The bolt-limited rubber vibration isolator according to claim 3 is characterized in that: The internal thread washer is an annular round metal sheet, the center of which is provided with an anti-slip internal thread hole, the anti-slip internal thread hole matches the thread of the thread head, and the diameter of the internal thread washer is equal to the diameter of the axial circular washer.

6. The bolt-limited rubber vibration isolator according to claim 1, characterized in that: The middle part of the limiting bolt is a bolt rod, the diameter of the threaded head is smaller than the diameter of the bolt rod, a rod shoulder is formed at the connection between the two, the rod shoulder is a step-like structure, and an anti-slip groove is opened at the rod shoulder.

7. The bolt-limited rubber vibration isolator according to claim 6, characterized in that: The anti-slip groove is an annular groove, the bottom diameter of which in the depth direction is smaller than the minor diameter of the thread head, and the width of which is larger than the thickness of the internal thread washer.

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