CN210423616U

CN210423616U - Belt transmission tensioning device

Info

Publication number: CN210423616U
Application number: CN201921310877.5U
Authority: CN
Inventors: 范伟滨
Original assignee: Shijiazhuang Keyuan Machinery Equipment Co ltd
Current assignee: Shijiazhuang Keyuan Machinery Equipment Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-04-28
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a belt tensioning device, in particular to a belt transmission tensioning device, the belt transmission comprises a driving wheel and a driven wheel, the driving wheel is connected with the rotating shaft of a motor through a key, the driven wheel is connected with the input shaft of a speed reducer through a key, and a belt is sleeved on the driving wheel and the driven wheel; overspeed device tensioner sets up in the below of motor, overspeed device tensioner includes fixed plate and rotor plate, the motor is fixed on the fixed plate, fixed plate and rotor plate cross fixation and fixed plate set up in the top of rotor plate, the below of rotor plate one end is rotated and is connected with the bottom plate, the bottom plate passes through rag bolt to be fixed on the floor, be provided with the elevating system who is used for the rotor plate to go up and down between the other end of rotor plate and the bottom plate, thereby this overspeed device tensioner passes through the rate of tension of the position adjustment belt of accommodate motor, thereby satisfy different production needs, for devices such as take-up pulley, the regulative mode of this kind of rate of tension can not.

Description

Belt transmission tensioning device

Technical Field

The utility model relates to a belt tightener, in particular to belt drive's overspeed device tensioner.

Background

The tensioning device is a commonly used holding device on a belt transmission system and a chain transmission system, such as a tensioner, a tensioning wheel and the like, which are commonly used for common tensioning devices, and is characterized in that the belt and a chain can be kept to have proper tensioning force in the transmission process, so that the belt is prevented from slipping, or the synchronous belt is prevented from jumping and disengaging from the teeth.

Belt drives are used in various fields, and the forms of tensioning used in the various belt drives are also various, but most of the tensioning devices are provided on the belt, and a tensioning device for belt tensioning is designed for use at the motor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a belt drive's overspeed device tensioner, thereby this overspeed device tensioner pass through the position adjustment belt's of accommodate motor rate of tension to satisfy different production needs, for devices such as take-up pulley, the regulative mode of this kind of rate of tension can not cause the damage to the belt.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a belt transmission tensioning device comprises a driving wheel and a driven wheel, wherein the driving wheel is connected to a rotating shaft of a motor in a key mode, the driven wheel is connected to an input shaft of a speed reducer in a key mode, and a belt is sleeved on the driving wheel and the driven wheel; the tensioning device is arranged below the motor and comprises a fixed plate and a rotating plate, the motor is fixed on the fixed plate, the fixed plate and the rotating plate are fixed in a crossed mode, the fixed plate is arranged above the rotating plate, a bottom plate is connected to the lower portion of one end of the rotating plate in a rotating mode, the bottom plate is fixed on the floor through foundation bolts, and a lifting mechanism used for lifting the rotating plate is arranged between the other end of the rotating plate and the bottom plate.

Through adopting above-mentioned technical scheme, set up fixed plate, rotor plate and elevating system through the below at the motor for the staff adjusts the height of fixed plate one side through elevating system, makes fixed plate and rotor plate take place to rotate jointly, thereby the action wheel changes with the distance from between the driving wheel, and the belt is taut or relaxed, thereby reaches the purpose of adjusting belt rate of tension, and this kind of mode of adjusting belt rate of tension can not lead to the fact any damage to the belt.

The utility model discloses further set up to: the lifting mechanism comprises a second rotating block fixed at the lower end of the rotating plate and two supporting blocks fixed on the bottom plate, a first lower top plate and a second lower top plate are connected to the supporting blocks in a rotating mode, the lower end of the rotating block is connected with a first upper top plate and a second upper top plate in a rotating mode, the first upper top plate is connected with the first lower top plate in a rotating mode, the second upper top plate is connected with the second lower top plate in a rotating mode, a first pressing block is arranged between the joint of the first lower top plate and the first upper top plate, a second pressing block is arranged between the second lower top plate and the second upper top plate, a screw rod is connected between the first pressing block and the second pressing block, the screw rod is connected with the first pressing block in a threaded mode, and the screw rod is connected.

Through adopting above-mentioned technical scheme, this elevating system is similar to jack's mechanism, because screw rod and first briquetting threaded connection, through revolving wrong screw rod, make first briquetting drive first roof and the action of first roof down, thereby roof, the second roof drives the second briquetting and produces the slip on the screw rod down, thereby the motor, the action wheel, the turning block all rotates along fixed plate and rotor plate and connects out and be circular motion, and then the distance between turning block and the supporting shoe takes place to rotate, because it is fixed unchangeable to follow the driving wheel, thereby the action wheel changes with the distance from driving between the driving wheel, and then reach the purpose that changes the belt progress.

The utility model discloses further set up to: the supporting shaft penetrates through the two supporting blocks, the two first lower top plates and the two second lower top plates are connected in a penetrating mode and rotating mode through the supporting shaft, and pins are arranged at the other ends of the supporting blocks.

Through adopting above-mentioned technical scheme, through wearing to establish the back shaft between two back shafts to stability when elevating system adjusts the fixed plate and goes up and down has been increased.

The utility model discloses further set up to: wear to be equipped with the second axis of rotation on the turning block, the second axis of rotation is worn turning block, two first roofs and two second roofs and is in the same place and rotate the connection.

Through adopting above-mentioned technical scheme, through wearing to establish the second axis of rotation on the turning block for the bearing capacity between the roof increases on turning block and first top board, the second, thereby stability when elevating system adjusts the fixed plate and goes up and down has been strengthened.

The utility model discloses further set up to: and a rotating handle is arranged at one end of the screw rod, which is positioned at the second pressing block, an embedded block is arranged on the screw rod, and a groove matched with the embedded block is formed in the rotating handle.

Through adopting above-mentioned technical scheme, rotate the handle through the setting for the staff rotates the screw rod more easily, has reduced staff's intensity of labour.

The utility model discloses further set up to: the rotation junction of rotor plate and bottom plate is provided with first rotation axis, rotate on the first rotation axis and be connected with two fixed blocks and two first rotation pieces, first rotation axis is worn two fixed blocks and two first rotation pieces together and the one end of first rotation axis is equipped with the pin.

Through adopting above-mentioned technical scheme, through setting up first axis of rotation, increased the bearing capacity that fixed plate and rotor plate rotated the link to stability when fixed plate and rotor plate rotated has been strengthened.

The utility model discloses further set up to: the belt uses a V-ribbed belt.

By adopting the technical scheme, the contact area and the friction force between the V-ribbed belt and the belt wheel are larger, and the load is distributed more uniformly along the belt width, so that the transmission capacity is larger; the belt body is thin and light, has good flexibility and reasonable structure, so the working stress is small, and the belt can work on a smaller belt wheel; the V-ribbed belt has the characteristics of small transmission vibration, quick heat dissipation, stable operation, small use elongation, large transmission ratio, high limit linear speed and the like, so the service life is longer; the energy-saving effect is obvious, and the transmission efficiency is high; the transmission is compact and the occupied space is small.

To sum up, the utility model discloses following beneficial effect has:

① uses and rotates handle drive screw to rotate, because screw rod and first briquetting threaded connection to action between screw rod and the first briquetting drives first roof, the action of first roof down, thereby fixed plate, rotor plate and motor rotate along first axis of rotation, and the position of action wheel changes, and then the action wheel changes with the distance from taking turns to between the driving wheel, thereby reaches the purpose that changes the progress of belt.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic structural view of the elevating mechanism;

fig. 4 is a schematic view of the structure of the turning handle.

In the figure, 11, a driving wheel; 12. a driven wheel; 13. a motor; 14. a speed reducer; 15. a frame; 16. a belt; 21. a fixing plate; 22. a rotating plate; 23. a base plate; 24. anchor bolts; 25. a first rotating shaft; 251. a fixed block; 252. a first rotating block; 26. a pin; 31. a second turning block; 32. a support block; 331. a first lower top plate; 332. a second lower ceiling plate; 34. a support shaft; 351. a first upper top plate; 352. a second upper top plate; 36. a second rotating shaft; 371. a first pressing block; 372. a second pressing block; 38. a screw; 381. an insert block; 39. rotating the handle; 391. and (4) a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

A belt transmission tensioning device is shown in figure 1, and comprises a driving wheel 11 and a driven wheel, wherein the driven wheel 12 is arranged above the driving wheel 11, the driving wheel 11 is fixedly connected with a rotating shaft of a motor 13 in a key mode, the driven wheel 12 is fixedly connected with an input shaft of a speed reducer 14 in a key mode, the speed reducer 14 is arranged above the motor 13, the speed reducer 14 and the motor 13 are both arranged on a rack 15, and a belt 16 is sleeved between the driving wheel 11 and the driven wheel 12. The belt 16 used for the belt transmission is a V-ribbed belt, and the driving wheel 11 and the driven wheel 12 are special wheels used for the V-ribbed belt.

As shown in fig. 1 and 2, the tensioner is disposed below the motor 13, and includes a fixed plate 21 and a rotating plate 22, the rotating plate 22 is vertically fixed on the fixed plate 21, the rotating plate 22 is disposed above the fixed plate 21, and the motor 13 is fixed on the fixed plate 21. The bottom plate 23 is arranged below the fixing plate 21, the bottom plate 23 is fixed on the ground through the anchor bolt 24, the fixing plate 21 is rotatably connected with the bottom plate 23 through the first rotating shaft 25, the first rotating shaft 25 is rotatably connected with two fixing blocks 251 and two first rotating blocks 252, two ends of the first rotating shaft 25 are respectively provided with one fixing block 251 and one first rotating block 252, the first rotating shaft 25 penetrates through the two fixing blocks 251 and the two first rotating blocks 252, and one end of the first rotating shaft 25 penetrates through a pin 26 to prevent the first rotating shaft 25 from being separated from the fixing blocks 251 and the first fixing blocks 251.

As shown in fig. 2 and 3, a lifting mechanism for lifting the rotating plate 22 is disposed between one end of the rotating plate 22 away from the first rotating shaft 25 and the bottom plate 23, the lifting mechanism is of a screw 38 type jack structure, and the lifting mechanism includes a second rotating block 31 fixed at the lower end of the rotating plate 22 and two supporting blocks 32 fixed on the bottom plate 23. A first lower top plate 331 and a second lower top plate 332 are provided above each supporting block 32, and the first lower top plate 331 and the second lower top plate 332 are provided in the middle of the two supporting blocks 32. The first lower top plate 331 is disposed on a side close to the first rotation axis 25, and the second lower top plate 332 is disposed on a side far from the first rotation axis 25. A support shaft 34 is inserted between the two support blocks 32, the two first lower top plates 331 and the two second lower top plates 332, and a pin 26 is inserted into one end of the support shaft 34 to prevent the support shaft 34 from being removed from the support blocks 32, the first lower top plates 331 and the second lower top plates 332. Two first upper top plates 351 and two second upper top plates 352 are arranged below the rotating block, and the two sides of the rotating block are respectively provided with the first upper top plate 351 and the second upper top plate 352. The first upper top plate 351 is disposed on a side close to the first rotation axis 25, and the second upper top plate 352 is disposed on a side far from the first rotation axis 25. A second rotating shaft 36 is inserted between the rotating block, the two first upper top plates 351 and the two second upper top plates 352, and a pin 26 is inserted at one end of the second rotating shaft 36 so as to prevent the second rotating shaft 36 from being removed from the rotating block, the first upper top plates 351 and the second upper top plates 352. First pressing blocks 371 penetrate through the first lower top plate 331 and the first upper top plate 351, and the two ends of each first pressing block 371 are respectively provided with the first lower top plate 331 and the first upper top plate 351 which are connected in a rotating mode. The second lower top plate 332 and the second upper top plate 352 are provided with a second pressing block 372, and two ends of the second pressing block 372 are respectively provided with the second lower top plate 332 and the second upper top plate 352 which are rotatably connected. The screw 38 is connected between the first pressing block 371 and the second pressing block 372, the screw 38 is in threaded connection with the first pressing block 371, and the screw 38 is in sliding connection with the second pressing block 372. One end of the screw rod 38, which is located at the second pressing block 372, is provided with a rotating handle 39, a square insert block 381 is arranged on the screw rod 38, and a groove 391 matched with the insert block 381 is formed in the rotating handle 39.

The utility model discloses a theory of operation: when the belt 16 becomes loose, the rotating handle 39 is used to drive the rotating screw 38 to rotate so as to slowly lower the rotating plate 22, and if the belt 16 is too tight, the rotating plate 22 is slowly lifted.

The present invention is not limited to the above embodiment, and those skilled in the art can make modifications to the embodiment as required without inventive contribution after reading the present specification, but all the modifications are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A belt transmission tensioning device comprises a driving wheel (11) and a driven wheel (12), wherein the driving wheel (11) is connected to a rotating shaft of a motor (13) in a key mode, the driven wheel (12) is connected to an input shaft of a speed reducer (14) in a key mode, and a belt (16) is sleeved on the driving wheel (11) and the driven wheel (12); the method is characterized in that: the tensioning device is arranged below the motor (13), the tensioning device comprises a fixing plate (21) and a rotating plate (22), the motor (13) is fixed on the fixing plate (21), the fixing plate (21) and the rotating plate (22) are fixed in a crossed mode, the fixing plate (21) is arranged above the rotating plate (22), a bottom plate (23) is connected to the lower portion of one end of the rotating plate (22) in a rotating mode, the bottom plate (23) is fixed on the floor through foundation bolts (24), and a lifting mechanism used for lifting of the rotating plate (22) is arranged between the other end of the rotating plate (22) and the bottom plate (23).

2. A belt driven tensioner as set forth in claim 1, wherein: the lifting mechanism comprises a second rotating block (31) fixed at the lower end of the rotating plate (22) and two supporting blocks (32) fixed on a bottom plate (23), a first lower top plate (331) and a second lower top plate (332) are connected to the supporting blocks (32) in a rotating manner, a first upper top plate (351) and a second upper top plate (352) are connected to the lower end of the second rotating block (31) in a rotating manner, the first upper top plate (351) and the first lower top plate (331) are connected in a rotating manner, the second upper top plate (352) and the second lower top plate (332) are connected in a rotating manner, a first pressing block (371) is arranged between the first lower top plate (331) and the first upper top plate (351), a second pressing block (372) is arranged between the second lower top plate (332) and the second upper top plate (352), a screw rod (38) is connected between the first pressing block (371), and the screw rod (38) is in threaded connection with the first pressing block (371), the screw rod (38) is connected with the second pressing block (372) in a sliding way.

3. A belt driven tensioner as set forth in claim 2, wherein: a supporting shaft (34) penetrates between the two supporting blocks (32), the two first lower top plates (331) and the two second lower top plates (332) are connected together in a penetrating mode through the supporting shaft (34) in a rotating mode, and a pin (26) is arranged at the other end of each supporting block (32).

4. A belt driven tensioner as set forth in claim 3, wherein: the rotating block is provided with a second rotating shaft (36) in a penetrating mode, and the rotating block, the two first upper top plates (351) and the two second upper top plates (352) are connected in a penetrating mode through the second rotating shaft (36) in a rotating mode.

5. A belt driven tensioner as claimed in claim 4, in which: one end of the screw rod (38) located at the second pressing block (372) is provided with a rotating handle (39), the screw rod is provided with an embedded block (381), and the rotating handle (39) is provided with a groove (391) matched with the embedded block (381).

6. A belt driven tensioner as set forth in claim 1, wherein: the rotating connection part of the rotating plate (22) and the bottom plate (23) is provided with a first rotating shaft (25), the first rotating shaft (25) is connected with two fixing blocks (251) and two first rotating blocks (252) in a rotating mode, the two fixing blocks (251) and the two first rotating blocks (252) are connected together through the first rotating shaft (25) in a penetrating mode, and one end of the first rotating shaft (25) is provided with a pin (26).

7. A belt driven tensioner as set forth in claim 1, wherein: the belt (16) uses a V-ribbed belt.