CN207793767U - A kind of unvulcanised cover board integral type sinking steel bushing - Google Patents
A kind of unvulcanised cover board integral type sinking steel bushing Download PDFInfo
- Publication number
- CN207793767U CN207793767U CN201721667670.4U CN201721667670U CN207793767U CN 207793767 U CN207793767 U CN 207793767U CN 201721667670 U CN201721667670 U CN 201721667670U CN 207793767 U CN207793767 U CN 207793767U
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- steel bushing
- backing plate
- bolt
- unvulcanised
- integral type
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Abstract
The utility model discloses a kind of unvulcanised cover board integral type sinking steel bushings, including backing plate, both sides at the top of backing plate are symmetrically arranged with backing plate hole, the inside in backing plate hole is equipped with the steel bushing with its shaft hole matching, the both sides of steel bushing are provided with elastic cover plate, the top of steel bushing is flexibly connected by split pin with rain-proof cover, and steel bushing is internally provided with steel bushing inner cavity, and the intracavitary of steel bushing inner cavity is provided with bolt.The utility model is by being provided with steel bushing inner cavity, so that bolt is sunk to inside steel bushing, the decline of bolt head faying face makes bolt strained point reduce, effectively prevent the loosening of bolt, extend the service life of bolt, the both sides of steel bushing are integral type with elastic cover plate, the spring fastening to backing plate may be implemented by the fastening of bolt, the energy generated in absorption piece vibration processes to a certain extent；By the way that the insulating bushing of unvulcanised is arranged between steel bushing and backing plate, conducive to fully achieving for backing plate elasticity.
Description
Technical field
The utility model is related to railway equipment technical field, specially a kind of unvulcanised cover board integral type sinking steel bushing.
Background technology
Currently, switch area is for damping noise reduction of driving a vehicle, while reducing wheel-rail force, track switch fastener node needs setting one
Fixed elasticity, and the setting of elastic layer especially vulcanised elastomeric layer needs larger vertical space, this makes backing plate whole height
Increase therewith, existing backing plate fastening structure is that bolt fastens backing plate by backing plate hole, and bolt head is bonded stress surface
On the upside of backing plate upper surface, when wheel track horizontal force is transferred to shank of bolt by backing plate, bolt strained point is also because of backing plate height
The increase of degree and raise, to lead to the problem of two, one is that bolt is easy to loosen, and causes lateral stiffness holding bad；Secondly
Bolt strained point is raised so that bolt and the moment of flexure increase of basic junction, reduce the service life of bolt, therefore we are right
This makes improvement, proposes a kind of unvulcanised cover board integral type sinking steel bushing.
Utility model content
Defect of the existing technology：
1, the bolt of backing plate fastening structure is easy to loosen, and lateral stiffness is caused to keep bad；
2, bolt strained point is raised so that bolt increases with basic junction moment of flexure, reduces the service life of bolt.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：
A kind of unvulcanised cover board integral type sinking steel bushing of the utility model, including backing plate, the both sides pair at the top of the backing plate
Title is provided with backing plate hole, and the inside in the backing plate hole is equipped with the steel bushing with its shaft hole matching, and the both sides of the steel bushing are provided with
The top of elastic cover plate, the steel bushing is flexibly connected by split pin with rain-proof cover, and the steel bushing is internally provided in steel bushing
The intracavitary of chamber, the steel bushing inner cavity is provided with bolt, and the bottom end of steel bushing inner cavity cavity wall is provided with and the matched rank of bolt
Terraced hole.
Further, the both sides of the steel bushing and elastic cover plate are integrated, and the both sides of the elastic cover plate are both provided with
Low rigidity elastic washer for generating spring fastening to backing plate.
Further, the backing plate hole and the junction of steel bushing are provided with the insulating bushing of unvulcanised.
Further, the junction of the shank of bolt of the bolt and stepped hole inner wall is provided with the oblong Buddhist nun of different size
Dragon buffering roll adjustment block.
Further, the surface spraying of the backing plate is useful for etch-proof skin of paint.
Compared with prior art, the utility model has the advantages that：This kind of unvulcanised cover board integral type sinking steel
Set, by being provided with steel bushing inner cavity so that bolt is sunk to inside steel bushing, and the decline of bolt head faying face makes bolt strained point drop
It is low, the loosening of bolt is effectively prevented, extends the service life of bolt, both sides and the elastic cover plate of steel bushing are integral type, are led to
Spring fastening to backing plate, the energy generated in absorption piece vibration processes to a certain extent may be implemented in the fastening for crossing bolt
Amount；By the way that the insulating bushing of unvulcanised is arranged between steel bushing and backing plate, conducive to fully achieving for backing plate elasticity.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of unvulcanised cover board integral type sinking steel bushing of the utility model；
Fig. 2 is a kind of overlooking structure diagram of unvulcanised cover board integral type sinking steel bushing of the utility model.
In figure：1, backing plate；2, steel bushing；3, insulating bushing；4, steel bushing inner cavity；5, roll adjustment block is buffered；6, rain-proof cover；7, spiral shell
Bolt；8, Low rigidity elastic washer；9, split pin；10, elastic cover plate.
Specific implementation mode
To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below
In conjunction with specific implementation mode, the utility model is expanded on further.
As shown in Figs. 1-2, a kind of unvulcanised cover board integral type sinking steel bushing, including backing plate 1, the both sides pair at 1 top of backing plate
Title is provided with backing plate hole, and the inside in backing plate hole is equipped with is provided with elastomeric cap with the steel bushing of its shaft hole matching 2, the both sides of steel bushing 2
The top of plate 10, steel bushing 2 is flexibly connected by split pin 9 with rain-proof cover 6, and steel bushing 2 is internally provided with steel bushing inner cavity 4, steel bushing
The intracavitary of inner cavity 4 is provided with bolt 7, and the bottom end of 4 cavity wall of steel bushing inner cavity is provided with and 7 matched stepped hole of bolt.
Wherein, the both sides of steel bushing 2 and elastic cover plate 10 are integrated, and the both sides of elastic cover plate 10 are both provided with for pad
Plate 1 generates the Low rigidity elastic washer 8 of spring fastening, the Low rigidity elastic washer 8 being arranged by 10 both sides of elastic cover plate, can be with
Spring fastening, and the energy generated in absorption piece vibration processes to a certain extent are applied to backing plate 1.
Wherein, backing plate hole and the junction of steel bushing 2 are provided with the insulating bushing 3 of unvulcanised, pass through steel bushing 2 and backing plate 1
Fission design makes without vertical mobile retardance between insulating bushing 3 and backing plate 1, conducive to fully achieving for 1 elasticity of backing plate.
Wherein, the junction of the shank of bolt of bolt 7 and stepped hole inner wall is provided with the oblong nylon buffering of different size
Roll adjustment block 5 realizes the lateral roll adjustment of rail by buffering roll adjustment block 5.
Wherein, the surface spraying of backing plate 1 is useful for etch-proof skin of paint, improves the resistance to corrosion of backing plate 1 and makes
Use the service life.
It should be noted that the utility model is a kind of unvulcanised cover board integral type sinking steel bushing, and when specific works, work
Personnel pass through the stepped hole of steel bushing inner cavity 4 by bolt 7, then rain-proof cover 6 is mounted on to the top of steel bushing 2 by split pin 9,
Elastic washer 8 between elastic cover plate 10 and backing plate 1 can apply backing plate 1 in spring fastening, and absorption portion to a certain extent
The energy generated in part vibration processes passes through the steel bushing inner cavity 4 being provided with so that bolt 7 sinks to steel bushing inner cavity 4, bolt head knot
The position in conjunction face declines so that the reduction of 7 stress point of bolt, effectively prevents the loosening of bolt 7, and extend bolt 7 uses the longevity
Life, both sides and the elastic cover plate 10 of steel bushing 2 are integral type, and the spring fastening to backing plate 1 may be implemented by the fastening of bolt 7,
The energy generated in absorption piece vibration processes to a certain extent, the insulation by the way that unvulcanised is arranged between steel bushing 2 and backing plate 1 serve as a contrast
Set 3, conducive to fully achieving for 2 elasticity of backing plate, the rust preventive oil enamelled coating having by the surface spraying of backing plate 1 improves backing plate 1
Anti-corrosion capability and service life.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (5)
1. a kind of unvulcanised cover board integral type sinking steel bushing, including backing plate（1）, which is characterized in that the backing plate（1）The two of top
Side is symmetrically arranged with backing plate hole, and the inside in the backing plate hole is equipped with the steel bushing with its shaft hole matching（2）, the steel bushing（2）'s
Both sides are provided with elastic cover plate（10）, the steel bushing（2）Top pass through split pin（9）With rain-proof cover（6）Flexible connection, it is described
Steel bushing（2）Be internally provided with steel bushing inner cavity（4）, the steel bushing inner cavity（4）Intracavitary be provided with bolt（7）, in the steel bushing
Chamber（4）The bottom end of cavity wall is provided with and bolt（7）Matched stepped hole.
2. a kind of unvulcanised cover board integral type sinking steel bushing according to claim 1, which is characterized in that the steel bushing（2）
Both sides and elastic cover plate（10）It is integrated, the elastic cover plate（10）Both sides be both provided with for backing plate（1）It generates
The Low rigidity elastic washer of spring fastening（8）.
3. a kind of unvulcanised cover board integral type sinking steel bushing according to claim 1, which is characterized in that the backing plate hole with
Steel bushing（2）Junction be provided with the insulating bushing of unvulcanised（3）.
4. a kind of unvulcanised cover board integral type sinking steel bushing according to claim 1, which is characterized in that the bolt（7）
The junction of shank of bolt and stepped hole inner wall be provided with the oblong nylon buffering roll adjustment block of different size（5）.
5. a kind of unvulcanised cover board integral type sinking steel bushing according to claim 1, which is characterized in that the backing plate（1）
Surface spraying be useful for etch-proof skin of paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721667670.4U CN207793767U (en) | 2017-12-05 | 2017-12-05 | A kind of unvulcanised cover board integral type sinking steel bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721667670.4U CN207793767U (en) | 2017-12-05 | 2017-12-05 | A kind of unvulcanised cover board integral type sinking steel bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207793767U true CN207793767U (en) | 2018-08-31 |
Family
ID=63286487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721667670.4U Active CN207793767U (en) | 2017-12-05 | 2017-12-05 | A kind of unvulcanised cover board integral type sinking steel bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207793767U (en) |
-
2017
- 2017-12-05 CN CN201721667670.4U patent/CN207793767U/en active Active
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