CN210371588U - Taper bolt for electric locomotive - Google Patents
Taper bolt for electric locomotive Download PDFInfo
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- CN210371588U CN210371588U CN201921220549.6U CN201921220549U CN210371588U CN 210371588 U CN210371588 U CN 210371588U CN 201921220549 U CN201921220549 U CN 201921220549U CN 210371588 U CN210371588 U CN 210371588U
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- bolt
- groove
- side wall
- electric locomotive
- taper
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Abstract
The utility model discloses a taper bolt for an electric locomotive, relating to the technical field of mechanical parts; the technical scheme is that main threads and auxiliary threads are arranged to jointly engage thread grooves and improve the connection tightness of a bolt body and the thread grooves; set up the activity groove and have the butt piece of elastic component to after the screw thread groove is twisted to the key body, make the butt piece receive elastic component reaction force, constantly offset with the screw thread inslot lateral wall, in order to further strengthen the tight degree of connection of key body and screw thread groove, reached the effect that effectively improves taper bolt fatigue strength.
Description
Technical Field
The utility model relates to a machine part technical field, more specifically say, it relates to a taper bolt for electric locomotive.
Background
At present, a taper bolt is a connecting part widely applied to connecting mechanical manufacturing, mechanical equipment installation and engineering structures; in some important connection sites, the damage of the taper bolt causes economic losses to various degrees, and the consequences are not obvious, so that the improvement of the precision and the fatigue strength is still in continuous progress.
The existing chinese patent with application number CN201610365946.7 provides an easily detachable taper bolt, which includes a bolt body, a first fixing structure and a second fixing structure; the first fixing structure and the second fixing structure are respectively positioned at two ends of the bolt body in the height direction, and the second fixing structure is positioned above the first fixing structure; the first fixing structure comprises a first fixing block, threads and a nut, the first fixing block is sleeved on the outer side wall of the bolt body, the threads are wound on the outer side wall of the bolt body and are positioned at the bottom of the bolt body, and the nut is rotatably arranged on the outer side wall of the threads; the second fixing structure comprises a second fixing block sleeved on the outer side wall of the bolt body and a bending piece arranged on the upper surface of the second fixing block; when an operator fixes and installs the bolt body, the bolt body penetrates through the adjacent templates, one end of the first fixing block close to the direction of the templates is attached to the outer side wall of the templates, and the nut is screwed to fix one end of the bolt body in the length direction; the bending piece is rotated to be attached to one end of the second fixing block away from the first fixing block, so that the phenomenon that the bolt body is separated from the two adjacent templates is reduced.
However, after the two adjacent templates are fixedly connected by the taper bolt, the taper bolt is continuously subjected to reverse tension of the two templates, so that the fatigue strength of the taper bolt is continuously reduced, and the connection structure of the adjacent templates is easy to loosen, so that the improvement is needed.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a taper bolt for motor vehicle, it has the advantage that effectively improves taper bolt fatigue strength.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a taper bolt for an electric locomotive comprises a bolt body, a bolt head and a bolt tail, wherein the bolt head and the bolt tail are respectively positioned at two ends of the bolt body in the length direction; the outer side wall of the bolt body is provided with a plurality of main threads, and the main threads are positioned between the movable groove and the bolt head; and a plurality of auxiliary threads are arranged on the outer side wall of the bolt tail.
By adopting the technical scheme, after the bolt body is screwed into the thread groove, the main thread is meshed with the inner side wall of the thread groove, and the abutting block continuously abuts against the inner side wall of the thread groove under the reaction force of the elastic part so as to enhance the connection tightness of the bolt body and the thread groove and further improve the fatigue strength of the bolt body; after the bolt body is introduced into the thread groove, the locking lines increase the engaging force of the bolt head and the outer side wall of the module; the auxiliary threads are meshed with the inner side wall of the thread groove in the same way to assist the main threads to lock the taper bolt and the module at the same time.
Furthermore, the inner side wall of the movable groove and the end wall located in the length direction of the inner side wall are provided with installation grooves, rotating pins are arranged in the installation grooves, and one end of the abutting block is fixedly connected with the rotating pins.
Through adopting above-mentioned technical scheme, the rotating pin lateral wall is located to butt piece length direction's pot head to improve the adaptation degree of butt piece and activity groove, and reduce the difficult phenomenon that gets into the thread groove of the body of bolt.
Furthermore, the movable groove inner side wall is vertically provided with a plurality of fixed pipes on the bottom wall of the movable groove inner side wall, and the elastic piece is located on the fixed pipe inner side wall.
Through adopting above-mentioned technical scheme, the elastic component is kept away from the one end of butt piece direction and is located fixed intraductal side wall to it makes the butt piece break away from the activity groove to reduce the excessive deformation of elastic component, and then influences the phenomenon that the key body got into the thread groove.
Further, the one end that the rotating pin direction was kept away from to the butt joint piece is provided with the stopper perpendicularly, the activity inslot lateral wall just is located its one end of keeping away from the mounting groove direction and is provided with the groove of stepping down, the stopper upper surface with step down the inslot lateral wall and be located its roof and laminate mutually.
By adopting the technical scheme, the upper surface of the limiting block is attached to the inner side wall of the abdicating groove and the top wall of the abdicating groove, so that the phenomenon that the limiting block is separated from the abdicating groove is reduced; the movable groove is arranged at a height far higher than that of the limiting block so that the elastic piece can stretch and deform and drive the abutting block to move; the length of the top plate above the abdicating groove is shorter than that of the bottom plate below the abdicating groove so that the abutting block can enter and exit the movable groove around the rotating shaft.
Further, the stopper upper surface is provided with the wear pad, the upper surface of wear pad and the inslot side wall of stepping down laminate mutually.
Through adopting above-mentioned technical scheme, the rubber pad is preferred to the wearing pad to increase the coefficient of friction when stopper and the inslot roof butt of stepping down, reduce the wearing and tearing that the two produced when touching simultaneously, thereby ensured the life of equipment.
Furthermore, a plurality of tension grains are arranged on the surface of the abutting block away from the direction of the elastic piece.
Through adopting above-mentioned technical scheme, the tension line is located the butt piece and keeps away from the surface of elastic component direction, and it is used for the screw thread space in the block thread groove to further improve the fatigue strength of awl bolt.
Furthermore, a plurality of meshing grooves are formed in the upper surface of the bolt tail and are located at the auxiliary threads.
Through adopting above-mentioned technical scheme, the interlock groove interval sets up in assisting the screw thread upper surface, its inside wall looks block with the thread groove to improve the connection compactness of awl bolt and module, and ensured the fatigue strength of awl bolt.
Further, the surface of the bolt head facing the bolt tail is provided with a plurality of locking grains.
Through adopting above-mentioned technical scheme, the locking line is located the surface of tieing the head towards the key body to make the key body let in behind the thread groove, increase the interlock dynamics of tieing head and module lateral wall.
To sum up, the utility model discloses following beneficial effect has:
1. the main thread and the auxiliary thread are arranged to be meshed with the thread groove together and improve the connection tightness of the bolt body and the thread groove; the movable groove and the abutting block with the elastic piece are arranged, so that after the bolt body is screwed into the thread groove, the abutting block is continuously abutted against the inner side wall of the thread groove under the reaction force of the elastic piece, and the connection tightness of the bolt body and the thread groove is further enhanced.
2. The installation groove and the rotating pin are arranged to reduce the phenomenon that the abutting block affects the bolt body to enter the thread groove; a limiting block and a abdicating groove are arranged to ensure that the abutting block is convenient to abut against the inner side wall of the thread groove; and tension lines and an occlusion groove are arranged to further improve the connection tightness of the taper bolt and the thread groove.
Drawings
FIG. 1 is a schematic structural diagram of a taper bolt for an electric locomotive in an embodiment;
fig. 2 is a schematic sectional view showing the positional relationship among the abutting block, the elastic member and the movable groove in the embodiment.
In the figure: 1. a bolt head; 101. locking lines; 2. a plug body; 201. a movable groove; 202. an elastic member; 203. a fixed tube; 204. mounting grooves; 205. a rotation pin; 206. a yielding groove; 207. a main thread; 3. bolting the tail; 301. auxiliary threads; 302. an occlusion groove; 4. a butting block; 401. a limiting block; 402. a wear pad; 403. tension lines.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
a taper bolt for an electric locomotive, referring to fig. 1, comprises a bolt body 2, a bolt head 1 and a bolt tail 3 which are respectively positioned at two ends of the bolt body 2 in the length direction; the three are integrally formed, and a plurality of locking grains 101 are integrally formed on the surface of the bolt head 1 facing the bolt body 2, so that after the bolt body 2 is introduced into the thread groove, the meshing force of the bolt head 1 and the outer side wall of the module is increased.
Referring to fig. 1 and 2, the key body 2 is provided with a plurality of movable grooves 201 along the radial direction thereof, and a plurality of elastic members 202 are vertically welded on the inner side walls and the bottom walls of the movable grooves 201; the elastic members 202 are preferably rigid springs, and an abutting block 4 is welded on the end wall of all the elastic members 202 away from the movable groove 201; after the bolt body 2 is screwed into the thread groove, the abutting block 4 is continuously abutted against the inner side wall of the thread groove by the counterforce of the elastic piece 202 so as to enhance the connection tightness of the bolt body 2 and the thread groove and further improve the fatigue strength of the bolt body.
Referring to fig. 2, a plurality of fixed tubes 203 are vertically welded on the inner side wall of the movable groove 201 and the bottom wall of the movable groove, and one end of the elastic member 202 away from the abutting block 4 is positioned on the inner side wall of the fixed tubes 203, so as to reduce the phenomenon that the abutting block 4 is separated from the movable groove 201 due to excessive deformation of the elastic member 202, and further the bolt 2 enters the thread groove; the bolt body 2 is internally provided with a mounting groove 204, and the mounting groove 204 is positioned on the inner side wall of the movable groove 201 and is positioned on the end wall of the movable groove in the length direction; the rotation pin 205 is rotationally arranged in the mounting groove 204, and the outer side wall of the rotation pin 205 is sleeved with one end of the abutting block 4 in the length direction, so that the adaptation degree of the abutting block 4 and the movable groove 201 is improved, and the phenomenon that the bolt body 2 is not easy to enter a thread groove is reduced.
Referring to fig. 2, a limit block 401 is vertically welded at one end of the abutting block 4 away from the rotating pin 205, and an abdicating groove 206 is arranged in the bolt body 2; the receding groove 206 is positioned on the inner side wall of the movable groove 201 and is one end of the movable groove far away from the direction of the mounting groove 204, and the upper surface of the limiting block 401 is attached to the inner side wall of the receding groove 206 and is positioned on the top wall of the receding groove, so that the phenomenon that the limiting block 401 is separated from the receding groove 206 is reduced; the setting height of the movable groove 201 is far higher than that of the limiting block 401, so that the elastic part 202 can stretch and deform and drive the abutting block 4 to move; the length of the ceiling above the relief groove 206 is shorter than the floor below it so that the abutment block 4 moves in and out of the movable groove 201 about the rotation axis.
Referring to fig. 2, a wear pad 402 is adhered to the upper surface of the limiting block 401, and the wear pad 402 is preferably a rubber pad, so as to increase the friction coefficient when the limiting block 401 abuts against the inner top wall of the abdicating groove 206, and reduce the wear generated when the limiting block 401 and the abdicating groove are contacted, thereby ensuring the service life of the equipment; the surface of the abutting block 4 away from the elastic element 202 is integrally formed with a plurality of tension threads 403, and the tension threads 403 are used for clamping thread gaps in the thread grooves, so that the fatigue strength of the taper bolt is further improved.
Referring to fig. 1, a plurality of main threads 207 are integrally formed on the outer side wall of the bolt body 2, and the main threads 207 are located between the movable groove 201 and the bolt head 1 and are higher than the abutting block 4; the main thread 207 is used for engaging and connecting with the inner side wall of the thread groove and fixedly connecting the bolt body 2 with the module; the outer side wall of the bolt tail 3 is provided with a plurality of auxiliary threads 301, the auxiliary threads 301 are meshed with the inner side wall of the thread groove in the same way, so that the auxiliary main threads 207 lock the taper bolt and the module at the same time; the upper surface of the auxiliary thread 301 is provided with a plurality of engagement grooves 302 at intervals, and the engagement grooves 302 are engaged with the inner side wall of the thread groove, so that the connection tightness of the taper bolt and the module is improved, and the fatigue strength of the taper bolt is guaranteed.
The working principle is as follows:
inserting the bolt body 2 and the bolt tail 3 into a threaded groove, engaging the auxiliary threads 301 with the inner side wall of the threaded groove, and simultaneously clamping the inner side wall of the threaded groove by the engagement groove 302 so as to preliminarily lock the taper bolt and the module; when the abutting block 4 enters the thread groove, the elastic piece 202 is extruded and enters the inner cavity of the movable groove 201; after the main thread 207 is engaged with the inner side wall of the thread groove, the abutting block 4 is engaged with the inner side wall of the thread groove by the reaction force of the elastic member 202 to improve the fatigue strength of the taper bolt.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a taper bolt for motor vehicle, includes bolt body (2) and is located bolt head (1) and the bolt tail (3) at bolt body (2) length direction both ends respectively, its characterized in that: the bolt body (2) is provided with a plurality of movable grooves (201) along the radial direction, a plurality of elastic pieces (202) are vertically arranged in the movable grooves (201), and one end of each elastic piece (202) far away from the movable groove (201) is horizontally provided with a butting block (4); the outer side wall of the bolt body (2) is provided with a plurality of main threads (207), and the main threads (207) are positioned between the movable groove (201) and the bolt head (1); the outer side wall of the bolt tail (3) is provided with a plurality of auxiliary threads (301).
2. The taper bolt for the electric locomotive according to claim 1, wherein: the inner side wall of the movable groove (201) and the end wall located in the length direction of the movable groove are provided with installation grooves (204), rotating pins (205) are arranged in the installation grooves (204), and one end of each abutting block (4) is fixedly connected with the rotating pins (205).
3. The taper bolt for the electric locomotive according to claim 2, wherein: the inner side wall of the movable groove (201) is vertically provided with a plurality of fixed pipes (203) on the bottom wall of the movable groove, and the elastic piece (202) is located on the inner side wall of each fixed pipe (203).
4. The taper bolt for the electric locomotive according to claim 3, wherein: the one end that the rotating pin (205) direction was kept away from in butt joint piece (4) is provided with stopper (401) perpendicularly, activity groove (201) inside wall and be located its one end of keeping away from mounting groove (204) direction are provided with groove of stepping down (206), stopper (401) upper surface and groove of stepping down (206) inside wall just are located its roof and laminate mutually.
5. The taper bolt for the electric locomotive according to claim 4, wherein: stopper (401) upper surface is provided with abrasion pad (402), abrasion pad (402) upper surface and the laminating of groove (206) inside wall of stepping down.
6. The taper bolt for the electric locomotive according to claim 4, wherein: the surface of the abutting block (4) far away from the elastic piece (202) is provided with a plurality of tension grains (403).
7. The taper bolt for the electric locomotive according to claim 6, wherein: the upper surface of the bolt tail (3) is provided with a plurality of meshing grooves (302), and the meshing grooves (302) are positioned at the auxiliary threads (301).
8. The taper bolt for the electric locomotive according to claim 7, wherein: the surface of the bolt head (1) facing the bolt tail (3) is provided with a plurality of locking grains (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220549.6U CN210371588U (en) | 2019-07-30 | 2019-07-30 | Taper bolt for electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220549.6U CN210371588U (en) | 2019-07-30 | 2019-07-30 | Taper bolt for electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210371588U true CN210371588U (en) | 2020-04-21 |
Family
ID=70247554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921220549.6U Active CN210371588U (en) | 2019-07-30 | 2019-07-30 | Taper bolt for electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210371588U (en) |
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2019
- 2019-07-30 CN CN201921220549.6U patent/CN210371588U/en active Active
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