CN208179349U - A kind of vibration test product fastening structure - Google Patents
A kind of vibration test product fastening structure Download PDFInfo
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- CN208179349U CN208179349U CN201820414217.0U CN201820414217U CN208179349U CN 208179349 U CN208179349 U CN 208179349U CN 201820414217 U CN201820414217 U CN 201820414217U CN 208179349 U CN208179349 U CN 208179349U
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Abstract
A kind of vibration test product fastening structure, it is characterised in that: including screw (1), screw lining (2) and the connecting hole (3) being opened on tested products (4)；The connecting hole (3) is a stepped hole comprising a big hole section (31) and an aperture section (32), the big hole section (31) are located at the upper end of connecting hole (3)；The screw lining (2) is an annular casing, its shape includes the big section (21) axially arranged along it and segment (22), the screw (1) penetrates in the centre bore (23) of screw lining (2), the head of screw (1) is pressed on the step surface (231) of the centre bore of screw lining (2), and the tail end of screw (1) is stretched out from connecting hole (3) bottom end for being threadedly coupled with the threaded hole (51) on vibration mechine table top (5).The utility model significantly reduces the possibility of tested products damaged surfaces.
Description
Technical field
The utility model relates to a kind of combined environment testing equipment, and in particular to a kind of vibration test product fastening structure.
Background technique
Vibration test refers to evaluation product vibration resistance and test for carrying out in expected use environment, tested in test
Product must be rigidly connected on the table top of vibration mechine, and the rigidity of connection directly affects test effect.
Some tested products are directly with screw attachment on the table top of vibration mechine, and screw attachment is mechanical structure
Very common connecting mode, it is to pass through a parts through-hole using screw, is tightened in another parts screw hole, to make two machines
Part connection, to connect rigidity well must just be screwed to very tightly, and stress concentrates on the surface of screw thread and connected piece, after being used for multiple times,
Surface has abrasion even pit.By taking motor as an example, the screw and vibration mechine table top of 4 M24 of the motor, Normal practice
It is the hole that motor opens diameter 26, penetrates the screw of M24, but after assembling and disassembling repeatedly, the surface of the work contacted with screw is the more few
Will appear less abrasion, conquassation, especially when parts material hardness is little, abrasion can it is more serious, to a certain extent when, entirely
Parts can only be scrapped.
Summary of the invention
The utility model aim is to provide a kind of vibration test product fastening structure, and rigidity is connected when guaranteeing vibration test
Under the premise of reduce abrasion to test products.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of vibration test product fastening structure, packet
Include screw, screw lining and the connecting hole being opened on tested products；The connecting hole is a stepped hole comprising a macropore
Section and an aperture section, the macropore section are located at the upper end of connecting hole；The screw lining is an annular casing, and shape includes edge
Its big section axially arranged and segment, described big section matches with the big hole section nesting of connecting hole, the segment and connecting hole it is small
The matching of hole section nesting；The centre bore of the screw lining is also a stepped hole, and the centre bore of screw lining also includes a big hole section
With an aperture section, step surface upwardly is formed between the big hole section and aperture section of centre bore；The screw penetrates screw lining
In the centre bore of set, the head of screw is pressed on the step surface of the centre bore of screw lining, and the tail end of screw is from connecting hole bottom
End is stretched out for being threadedly coupled with the threaded hole on vibration mechine table top.
Since the utility model is specially provided with special screw lining between screw and tested products, make tightening for screw
Pressure is broken down on a big contact surface from the face of a very little, and pressure becomes smaller, to significantly reduce to tested products
Damage.
Detailed description of the invention
Fig. 1 is screw and spiral shell in figure using the connection stereoscopic schematic diagram of the motor tested products of the utility model embodiment
Following closely bushing is the state not being placed in；
Fig. 2 is screw and spiral shell in figure using the connection stereoscopic schematic diagram of the motor tested products of the utility model embodiment
Nail bushing is to be screwed into state；
Fig. 3 is the schematic cross-sectional view of the utility model embodiment.
In the figures above: 1, screw；2, screw lining；21, big section；22, segment；23, centre bore；231, step surface；3,
Connecting hole；31, big hole section；32, aperture section；4, tested products；5, vibration mechine table top；51, threaded hole.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
Embodiment: join as shown in figure 1 to 3:
A kind of vibration test product fastening structure, including screw 1, screw lining 2 and the company being opened on tested products 4
Connect hole 3.
As shown in figure 1 to 3, the connecting hole 3 is a stepped hole to ginseng comprising a big hole section 31 and an aperture section 32, institute
State the upper end that big hole section 31 is located at connecting hole 3.
As shown in figure 1 to 3, the screw lining 2 is an annular casing to ginseng, and shape includes the big section 21 axially arranged along it
With segment 22, described big section 21 matches with 31 nesting of big hole section of connecting hole 3, the aperture section 32 of the segment 22 and connecting hole 3
Nesting matching.The centre bore 23 of the screw lining 2 is also a stepped hole, and the centre bore 23 of screw lining 2 also includes a macropore
Section and an aperture section, are formed with step surface 231 upwardly between the big hole section and aperture section of centre bore 23.
As shown in figure 1 to 3, the screw 1 penetrates in the centre bore 23 of screw lining 2 ginseng, and the head of screw 1 is pressed on spiral shell
On the step surface 231 for following closely the centre bore of bushing 2, the tail end of screw 1 from 3 bottom end of connecting hole stretch out for vibration mechine table top
Threaded hole 51 on 5 is threadedly coupled.
Screw lining 2 uses stainless steel 304 material, and the hardness of stainless steel is better than 4 surface hardness of tested products, screw lining
2 are not easy to be subject to crushing, and after screw lining 2 is added, 1 pressure applied of screw is broken down into one big connect from the face of a very little
In contacting surface, pressure becomes smaller, to significantly reduce the possibility of 4 damaged surfaces of tested products.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (1)
1. a kind of vibration test product fastening structure, it is characterised in that: including screw (1), screw lining (2) and be opened in by
Connecting hole (3) in trial product (4)；The connecting hole (3) is a stepped hole comprising a big hole section (31) and an aperture section
(32), the big hole section (31) is located at the upper end of connecting hole (3)；The screw lining (2) is an annular casing, and shape includes edge
Its big section (21) axially arranged and segment (22), big section (21) are matched with the big hole section (31) of connecting hole (3) nesting, institute
Segment (22) is stated to match with the aperture section (32) of connecting hole (3) nesting；The centre bore (23) of the screw lining (2) is also one
Rank hole, the centre bore (23) of screw lining (2) also include a big hole section and an aperture section, the big hole section and aperture of centre bore (23)
Step surface (231) upwardly is formed between section；The screw (1) penetrates in the centre bore (23) of screw lining (2), screw
(1) head is pressed on the step surface (231) of the centre bore of screw lining (2), and the tail end of screw (1) is from connecting hole (3) bottom
End is stretched out for being threadedly coupled with the threaded hole (51) on vibration mechine table top (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820414217.0U CN208179349U (en) | 2018-03-26 | 2018-03-26 | A kind of vibration test product fastening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820414217.0U CN208179349U (en) | 2018-03-26 | 2018-03-26 | A kind of vibration test product fastening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208179349U true CN208179349U (en) | 2018-12-04 |
Family
ID=64438429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820414217.0U Active CN208179349U (en) | 2018-03-26 | 2018-03-26 | A kind of vibration test product fastening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208179349U (en) |
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2018
- 2018-03-26 CN CN201820414217.0U patent/CN208179349U/en active Active
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