CN215720581U - Belt pulley tensioning device for platform pedal of railway vehicle and platform pedal - Google Patents
Belt pulley tensioning device for platform pedal of railway vehicle and platform pedal Download PDFInfo
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- CN215720581U CN215720581U CN202121133189.3U CN202121133189U CN215720581U CN 215720581 U CN215720581 U CN 215720581U CN 202121133189 U CN202121133189 U CN 202121133189U CN 215720581 U CN215720581 U CN 215720581U
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- tensioning
- tensioner
- pulley
- railway vehicle
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Abstract
The utility model discloses a belt pulley tensioning device for a railway vehicle platform pedal and the platform pedal. The utility model solves the problem of difficult belt installation and the problem of insufficient tension on the belt wheel.
Description
Technical Field
The utility model belongs to the technical field of railway vehicles, and particularly relates to a belt pulley tensioning device for a platform pedal of a railway vehicle and the platform pedal.
Background
In the mechanical industry, a belt drive is a common mechanical drive, but in the case of a very narrow belt drive installation space, a situation that a belt is difficult to install or cannot be tensioned when the belt is installed on a belt wheel often occurs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a belt pulley tensioning device for a platform pedal of a railway vehicle and the platform pedal, which not only solve the problem of difficulty in mounting a belt, but also solve the problem of insufficient tensioning force on a belt pulley.
The utility model provides the following technical scheme:
the utility model provides a belt pulley overspeed device tensioner for rail vehicle platform footboard, includes tensioning frame, installation piece, tensioning pull rod and take-up pulley, the take-up pulley is installed in tensioning frame outside, the tensioning pull rod runs through tensioning frame and afterbody top in the installation piece surface, when the tensioning pull rod rotates, tensioning frame drive take-up pulley removes along the axis direction of installation piece.
Furthermore, the tensioning frame comprises a main body frame and a tensioning plate which are connected, the main body frame is arranged outside the mounting block, a threaded hole is formed in the tensioning plate, and external threads matched with the threaded hole are formed in the outer surface of the tensioning pull rod.
Furthermore, a cotter pin is installed on the tensioning pull rod and is located between the installation block and the tensioning plate.
Furthermore, the tensioning frame is provided with a waist-shaped adjusting hole, the mounting block is provided with a screw hole corresponding to the adjusting hole, and the tensioning frame and the mounting block are fixedly connected through an adjusting screw penetrating through the adjusting hole and the screw hole.
Furthermore, a gasket is arranged between the nut of the adjusting screw and the tensioning frame.
Furthermore, the tensioning wheel is rotatably installed on the central shaft through a bearing, a shaft hole is formed in the tensioning frame, and the central shaft penetrates through the shaft hole and is installed on the tensioning frame.
A railway vehicle platform pedal comprises the belt pulley tensioning device for the railway vehicle platform pedal.
Further, the platform pedal of the railway vehicle further comprises a belt wheel and a belt wound outside the belt wheel and the tension wheel.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model solves the problem of difficult belt installation and the problem of insufficient tension on the belt wheel, and particularly, the tension pull rod is rotated to enable the tension frame to drive the tension pulley to move, so that the distance between the tension pulley and the belt wheel is reduced, and the belt is convenient to install; after the belt is installed, the tensioning pull rod is rotated reversely, the tensioning frame drives the tensioning wheel to move reversely, the distance between the tensioning wheel and the belt wheel is increased, and the belt meets the tensioning requirement.
Drawings
FIG. 1 is a schematic diagram of a pulley tensioner;
FIG. 2 is a schematic structural view of the tension frame;
FIG. 3 is a schematic structural view of a mounting block;
FIG. 4 is a cross-sectional view of a pulley tensioner at a tensioner pulley;
FIG. 5 is an assembly view of the pulley tensioner;
labeled as: 1. tensioning the tension rod; 2. mounting blocks; 3. a tension wheel; 4. a tension frame; 4-1, a main body frame; 4-2, tensioning plates; 5. a central shaft; 6. a bearing; 7. a cotter pin; 8. an adjusting screw; 9. a gasket; 10. an adjustment hole; 11. a threaded hole; 12. a shaft hole; 13. screw holes; 14. a pulley; 15. a belt.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a pulley tensioning device for a platform pedal of a railway vehicle, including a tensioning frame 4, a mounting block 2, a tensioning rod 1 and a tensioning wheel 3, wherein the tensioning wheel 3 is mounted outside the tensioning frame 4, the tensioning rod 1 penetrates through the tensioning frame 4, and the tail portion of the tensioning rod is pushed against the surface of the mounting block 2, and when the tensioning rod 1 rotates, the tensioning frame 4 drives the tensioning wheel 3 to move along the axial direction of the mounting block 2.
As shown in fig. 1 and 2, the tensioning frame 4 comprises a main body frame 4-1 and a tensioning plate 4-2 which are connected, the main body frame 4-1 is arranged outside the mounting block 2, a threaded hole 11 is arranged on the tensioning plate 4-2, and an external thread matched with the threaded hole 11 is arranged on the outer surface of the tensioning pull rod 1. The tensioning pull rod 1 is provided with a cotter pin 7, the cotter pin 7 is positioned between the mounting block 2 and the tensioning plate 4-2, and the cotter pin 7 can prevent the tensioning pull rod 1 from falling off.
As shown in fig. 1-3, a waist-shaped adjusting hole 10 is provided on the main body frame 4-1 of the tension frame 4, a screw hole 13 corresponding to the adjusting hole 10 is provided on the mounting block 2, and the tension frame 4 and the mounting block 2 are fixedly connected by an adjusting screw 8 passing through the adjusting hole 10 and the screw hole 13. A gasket 9 is arranged between the nut of the adjusting screw 8 and the main body frame 4-1.
As shown in fig. 4, the tension pulley 3 is rotatably mounted on the center shaft 5 via a bearing 6, the tension frame 4 is provided with a shaft hole 12, and the center shaft 5 is mounted on the tension frame 4 through the shaft hole 12.
Example 2
As shown in fig. 5, the present embodiment provides a railway vehicle platform pedal, which includes the pulley tensioning device for a railway vehicle platform pedal, a pulley 14, and a belt 15 wound around the pulley 14 and the tensioning pulley 3.
The working principle of the utility model is as follows: the adjusting screw 8 is unscrewed, the tensioning pull rod 1 is rotated, the tensioning frame 4 drives the tensioning wheel 3 to move, the distance between the tensioning wheel 3 and the belt wheel 14 is shortened, and the belt 15 is convenient to mount; after the belt 15 is installed, the tensioning pull rod 1 is rotated reversely, so that the tensioning frame 4 drives the tensioning wheel 3 to move reversely, the distance between the tensioning wheel 3 and the belt wheel 14 is increased, the belt 15 meets the tensioning requirement, and at the moment, the adjusting screw 8 is screwed down to fix the tensioning frame 4 and the fixing block 2; therefore, the utility model solves the problem of difficult belt installation and the problem of insufficient tension on the belt wheel.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The belt pulley tensioning device for the platform pedal of the railway vehicle is characterized by comprising a tensioning frame, a mounting block, a tensioning pull rod and a tensioning wheel, wherein the tensioning wheel is mounted outside the tensioning frame, the tensioning pull rod penetrates through the tensioning frame, the tail of the tensioning pull rod pushes against the surface of the mounting block, and when the tensioning pull rod rotates, the tensioning frame drives the tensioning wheel to move along the axis direction of the mounting block.
2. The pulley tensioner as in claim 1 wherein the tensioner bracket comprises a main body bracket and a tensioner plate coupled to each other, the main body bracket is mounted to the exterior of the mounting block, the tensioner plate has a threaded hole, and the outer surface of the tensioner rod has an external thread matching the threaded hole.
3. The pulley tensioner as in claim 2 wherein the tension link has a cotter pin mounted thereon, the cotter pin being located between the mounting block and the tension plate.
4. The pulley tensioning device for a railway vehicle platform pedal of claim 1 wherein the tensioning bracket is provided with a kidney-shaped adjustment hole, the mounting block is provided with a screw hole corresponding to the adjustment hole, and the tensioning bracket and the mounting block are fixedly connected by an adjustment screw passing through the adjustment hole and the screw hole.
5. The pulley tensioner for railway vehicle platform treads according to claim 4, wherein a washer is disposed between the nut of the adjustment screw and the tensioner bracket.
6. The pulley tensioner as in claim 1 wherein said tensioner is rotatably mounted on a central shaft by a bearing, said tensioner housing having an axial bore, said central shaft being mounted on said tensioner housing through said axial bore.
7. A railway vehicle platform tread comprising a pulley tensioner for a railway vehicle platform tread according to any one of claims 1 to 6.
8. The railway vehicle platform tread of claim 7, further comprising a pulley and a belt wrapped around the pulley and the tensioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133189.3U CN215720581U (en) | 2021-05-25 | 2021-05-25 | Belt pulley tensioning device for platform pedal of railway vehicle and platform pedal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133189.3U CN215720581U (en) | 2021-05-25 | 2021-05-25 | Belt pulley tensioning device for platform pedal of railway vehicle and platform pedal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215720581U true CN215720581U (en) | 2022-02-01 |
Family
ID=80032600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121133189.3U Active CN215720581U (en) | 2021-05-25 | 2021-05-25 | Belt pulley tensioning device for platform pedal of railway vehicle and platform pedal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215720581U (en) |
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2021
- 2021-05-25 CN CN202121133189.3U patent/CN215720581U/en active Active
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