CN214221923U

CN214221923U - Multi-wedge belt wheel automatic regulating device

Info

Publication number: CN214221923U
Application number: CN202023151474.6U
Authority: CN
Inventors: 潘清跃; 王维川
Original assignee: Nanjing Advanced Semiconductor Technology Nast Co ltd
Current assignee: Nanjing Advanced Semiconductor Technology Nast Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-17
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses an automatic adjusting device of a multi-wedge belt wheel, which comprises a multi-wedge belt, a fixed seat, a guide shaft, a lever connected with the guide shaft, a pressing wheel pressed on the multi-wedge belt and a guide shaft seat; the spring which is propped against the guide shaft is arranged in the guide shaft seat, the spring extrudes the guide shaft to enable the guide shaft to give a moment to the lever, and the pressure given to the V-ribbed belt by the pressing wheel is provided through the lever action. Therefore, when the V-ribbed belt is loosened, the pressing wheel can automatically provide the tensioning effect through the elastic force of the spring.

Description

Multi-wedge belt wheel automatic regulating device

Technical Field

The utility model belongs to the mechanical design field relates to a overspeed device tensioner of polywedge bet.

Background

As shown in fig. 1, the multi-v-ribbed pulley device in the prior art includes a multi-v-ribbed pulley 1 as a driven pulley, a multi-v-ribbed belt 2 ' wound around the multi-v-ribbed pulley 1 ', and a driving case 3 '. The driving box 3 'has a driving wheel to drive the poly-v-belt 2' to rotate, which is the prior art and is not shown in the figures and is not described again. In the conventional multiple wedge pulley device, the driving wheel structure is fixed in the driving box 3 ' by bolts 4 ', and the surface of the driving box 3 ' is provided with mounting grooves 5 ' matched with the bolts 4 '. If the V-ribbed belt 2 'slips, the bolt 4' needs to be manually adjusted to slide in the installation groove 5 'so that the driving wheel is far away from the V-ribbed belt wheel 1' to form a tensioning effect. This type of tensioning is inefficient and requires frequent checking for slippage of the v-ribbed belt.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: to above shortcoming, the utility model provides a can carry out many wedges band pulley automatic regulating apparatus of automatic tensioning to many wedges area.

The technical scheme is as follows: in order to solve the above problem, the utility model discloses can adopt following technical scheme:

an automatic adjusting device of a multi-wedge belt wheel comprises the multi-wedge belt wheel and a multi-wedge belt wound on the multi-wedge belt wheel; the device is characterized by also comprising a fixed seat, a guide shaft, a lever connected with the guide shaft, a pressing wheel pressed on the poly-wedge belt and a hollow guide shaft seat; the rear end of the guide shaft is inserted into the guide shaft seat, the front end of the guide shaft is hinged with the lever, the middle part of the lever is hinged on the fixed seat through a pin shaft, and the pressing wheel and the guide shaft are respectively positioned at two sides of the pin shaft; the inside spring that leans on the guiding axle that is equipped with of direction axle bed to reach the adjusting nut of adjusting the spring compression volume.

Furthermore, the adjusting nut is provided with a screw rod extending into the guide shaft seat, and the adjusting nut moves through threaded connection to enable the screw rod to press the spring.

Further, the spring is in a compressed and deformed state.

Furthermore, a support is arranged on the guide shaft, and one end of the support extends out of the guide shaft and is hinged to the fixed seat.

Further, the lever is L-shaped.

Has the advantages that: compared with the prior art, spring extrusion guiding axle makes the guiding axle give moment of lever, provides the pressure that the pinch roller gave the polywedge bet through leverage. Therefore, when the V-ribbed belt is loosened, the pressing wheel can automatically provide the tensioning effect through the elastic force of the spring. When the elastic force of the spring is insufficient, the spring is further extruded only by adjusting the nut so as to be always in a compression deformation state, and the tensioning effect on the V-ribbed belt can be continuously and automatically provided.

Drawings

Fig. 1 is a schematic diagram of a prior art multiple wedge pulley device.

Fig. 2 is a schematic structural diagram of the multi-wedge belt wheel automatic adjusting device of the present invention.

Fig. 3 is a schematic structural diagram of the tensioning device of the present invention.

Detailed Description

With reference to fig. 2 and 3, the utility model provides a multi-wedge belt wheel automatic regulating device, including multi-wedge belt wheel 1, multi-wedge belt 2 that twines on multi-wedge belt wheel 1. The device further comprises a tensioning device 3, wherein the tensioning device comprises a fixed seat 31, a guide shaft 32, an L-shaped lever 33 connected with the guide shaft 32, a pressing wheel 34 pressed on the V-ribbed belt 2 and a hollow guide shaft seat 35. The rear end of the guide shaft 32 is inserted into the guide shaft seat 35, and the front end of the guide shaft 32 is hinged with the lever 33. The middle part of the lever 33 is hinged on the fixed seat 31 through a pin shaft 36, and the pressing wheel 34 and the guide shaft 32 are respectively positioned at two sides of the pin shaft 36. The guiding axle seat 35 is internally provided with a spring 37 which is abutted against the guiding axle and an adjusting nut 38 which is used for adjusting the compression amount of the spring 37. The adjusting nut 38 is provided with a screw (not shown) extending into the guide shaft seat 35, and the adjusting nut 38 moves by screwing to press the spring 37 with the screw so that the spring 37 can be always in a compressed state. The guide shaft 32 is further provided with a bracket 39, and one end of the bracket 39 extends from the guide shaft 35 and is hinged to the fixed seat 31.

Since the spring 37 is always in compression, the guide shaft 32 is pressed, so that the guide shaft 32 gives a moment to the lever 33, which provides a pressure to the V-ribbed belt 2 by the pressure wheel 34 through leverage. The pressing wheel 34 can automatically provide tension by the elastic force of the spring 37 when the V-ribbed belt 2 is loosened.

The present invention embodies a number of methods and approaches to this solution, and the above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be construed as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.

Claims

1. An automatic adjusting device of a multi-wedge belt wheel comprises the multi-wedge belt wheel and a multi-wedge belt wound on the multi-wedge belt wheel; the device is characterized by also comprising a fixed seat, a guide shaft, a lever connected with the guide shaft, a pressing wheel pressed on the poly-wedge belt and a hollow guide shaft seat; the rear end of the guide shaft is inserted into the guide shaft seat, the front end of the guide shaft is hinged with the lever, the middle part of the lever is hinged on the fixed seat through a pin shaft, and the pressing wheel and the guide shaft are respectively positioned at two sides of the pin shaft; the inside spring that leans on the guiding axle that is equipped with of direction axle bed to reach the adjusting nut of adjusting the spring compression volume.

2. The multiple v-ribbed pulley automatic adjustment device according to claim 1, wherein the adjustment nut is provided with a threaded rod extending into the guide shaft seat, the adjustment nut being moved by the threaded connection such that the threaded rod presses the spring.

3. The multiple v-ribbed pulley automatic adjustment device according to claim 1 or 2, characterized in that the spring is in a compressed deformation state.

4. The automatic multi-wedge pulley adjusting device according to claim 3, wherein a bracket is disposed on the guide shaft, and one end of the bracket extends from the guide shaft and is hinged to the fixing seat.

5. The multiple v-ribbed pulley automatic adjustment device according to claim 1 or 2, characterized in that said lever is L-shaped.