CN209781589U

CN209781589U - Synchronous belt tensioning and releasing structure

Info

Publication number: CN209781589U
Application number: CN201920055733.3U
Authority: CN
Inventors: 刘鹏; 张娜; 王东
Original assignee: Jiaxing Ke Ruidi Medical Devices Co Ltd
Current assignee: Jiaxing Ke Ruidi Medical Devices Co Ltd
Priority date: 2019-01-14
Filing date: 2019-01-14
Publication date: 2019-12-13
Anticipated expiration: 2029-01-14

Abstract

The utility model discloses a hold-in range tensioning and pine take off structure, including the hold-in range take-up pulley that is close to the hold-in range stiff end, hold-in range take-up pulley a plurality of teeth with a plurality of tooth meshes of hold-in range, different with prior art, the hold-in range take-up pulley can rotate and fix and make the hold-in range tensioning, simultaneously the hold-in range take-up pulley can the counter rotation make the hold-in range pine take off. Compared with the prior art, the utility model discloses can realize the tensioning and take off two kinds of functions with taking off to the protection to the people in operation process is strengthened. Compact structure and convenient operation.

Description

Synchronous belt tensioning and releasing structure

Technical Field

The utility model belongs to the technical field of medical instrument, specifically a hold-in range tensioning and pine take off structure is applicable to the hold-in range tensioning and the pine of medical instrument trade automation on and take off.

Background

The synchronous belt has the advantages of stable transmission, convenience in installation, no need of oil lubrication and the like, so that the synchronous belt structure is adopted in many places for conveying and transferring materials in the automation of medical instruments. In the use, the hold-in range should keep certain elasticity, otherwise influences work efficiency, therefore the hold-in range needs to carry out the regulation of elasticity. Traditional overspeed device tensioner is more complicated, and receives the installation space and the mounting means influence of hold-in range great, and the operation is more difficult, and protection device when not changing the hold-in range moreover, under the tensioning condition, suddenly pine takes off, and the hold-in range probably collapses out in the twinkling of an eye, causes the injury to operating personnel.

Disclosure of Invention

For the technical problem who solves prior art existence, the utility model provides a hold-in range tensioning and pine take off structure. The utility model discloses compact structure, the regulation hold-in range tensioning dynamics that can be more convenient, and change the hold-in range better protection architecture occasionally, very big increase the security when people operate. Therefore, the utility model adopts the technical scheme that:

The utility model provides a hold-in range tensioning and pine take off structure, includes the hold-in range take-up pulley that is close to the hold-in range stiff end, hold-in range take-up pulley a plurality of teeth with a plurality of tooth meshing of hold-in range, its characterized in that: the hold-in range take-up pulley can rotate and fix and make the hold-in range tensioning, simultaneously the hold-in range take-up pulley can the counter rotation make the hold-in range pine take off.

The device comprises a synchronous belt tensioning seat, a U-shaped groove body is formed in the synchronous belt tensioning seat, tensioning seat cover plates are fixedly connected to two sides of the synchronous belt tensioning seat respectively, a steel sleeve shaft is fixedly arranged between the two tensioning seat cover plates on the upper edge of the U-shaped groove body, a steel sleeve is sleeved on the steel sleeve shaft, a shaft is pivoted on one tensioning seat cover plate, a synchronous belt tensioning wheel is fixedly arranged on a shaft on the inner side of the tensioning seat cover plate, and the synchronous belt tensioning wheel is located in the U-shaped groove body; a ratchet wheel is fixedly arranged on a shaft on the outer side of the tensioning seat cover plate; the tensioning seat cover plate is provided with a sliding chute with an opening at the lower end, the sliding block matched with the sliding chute can move up and down, the lower end of the tensioning seat cover plate is fixedly provided with a fixing plate for plugging the sliding chute, the fixing plate is provided with a threaded hole, and an adjusting screw pivoted with the sliding block is in threaded connection with the threaded hole; the ratchet wheel is characterized in that a pawl is further pivoted on the sliding block, an elastic sheet fixing plate is further fixedly arranged on the tensioning seat cover plate, one end of a pawl elastic sheet is fixedly arranged on the elastic sheet fixing plate, the other end of the pawl elastic sheet is pressed on the pawl, and the claw tip of the pawl is pressed on the ratchet wheel.

Compared with the prior art, the utility model discloses can realize the tensioning and take off two kinds of functions with taking off to the protection to the people in operation process is strengthened. Compact structure and convenient operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the components of fig. 1.

Wherein:

1 synchronous belt tensioning seat, 2 tensioning seat cover plates, 3 synchronous belt tensioning wheels and 4 ratchet wheels

5-pawl 6-pawl elastic sheet 7 elastic sheet fixing plate 8 shaft

9 steel sleeve shaft 10 steel sleeve 11 slide block 12 fixing plate

13 adjusting screw 14U-shaped groove 15 chute.

Detailed Description

Referring to the accompanying drawings, the synchronous belt tensioning and releasing structure comprises a synchronous belt tensioning seat 1, wherein a U-shaped groove body 14 is formed in the synchronous belt tensioning seat 1, two sides of the synchronous belt tensioning seat 1 are fixedly connected with tensioning seat cover plates 2 respectively, a steel sleeve shaft 9 is fixedly arranged between the tensioning seat cover plates 2 on the upper edge and two sides of the U-shaped groove body 14, a steel sleeve 10 is sleeved on the steel sleeve shaft 9, and the steel sleeve is installed on the steel sleeve shaft to play a guiding role. A shaft 8 is pivoted on one of the tensioning seat cover plates 2, a synchronous belt tensioning wheel 3 is fixedly arranged on the shaft 8 at the inner side of the tensioning seat cover plate 2, and the synchronous belt tensioning wheel 3 is positioned in the U-shaped groove body 14; a ratchet wheel 4 is fixedly arranged on a shaft 8 at the outer side of the tensioning seat cover plate 2; the tensioning seat cover plate 2 is provided with a sliding chute 15 with an opening at the lower end, a sliding block 11 matched with the sliding chute can move up and down, the lower end of the tensioning seat cover plate 2 is fixedly provided with a fixing plate 12 for plugging the sliding chute 15, the fixing plate 12 is provided with a threaded hole, and an adjusting screw pivoted with the sliding block 11 is in threaded connection with the threaded hole; still the pivot establishes pawl 5 on the slider 11, tensioning seat apron 2 is gone up and is still set firmly shell fragment fixed plate 7, the one end of setting firmly pawl shell fragment 6 on the shell fragment fixed plate 7, the other end of pawl shell fragment 6 supports and presses on pawl 5, the claw point of pawl 5 supports and presses on ratchet 4. The right end of the shaft 8 exceeds the ratchet wheel 4, the cross section is square, a through hole can be formed in the end of the shaft, and the shaft 8 can be rotated by a wrench or a screwdriver inserted into the through hole. The synchronous belt 100 is wound around the steel bushing and around the inner side of the synchronous belt tension pulley, and a plurality of teeth of the synchronous belt are engaged with the teeth of the synchronous belt tension pulley.

When the synchronous belt needs to be tensioned, the shaft 8 rotates anticlockwise, the synchronous belt wheel rotates to drive the synchronous belt to be tensioned, and the pawl is matched with the ratchet wheel to be locked.

When the synchronous belt needs to be loosened, the adjusting screw rod is matched with the sliding block to drive the pawl to move downwards, and when the pawl leaves the ratchet wheel, the shaft and the synchronous belt tensioning wheel can rotate clockwise to loosen the synchronous belt. Because the synchronous belt tensioning wheel is fixed in the U-shaped groove body 14 which is relatively closed, when the synchronous belt is loosened, the synchronous belt tensioning wheel can only be driven to rotate but not be separated, so that no danger can be caused.

Claims

1. The utility model provides a hold-in range tensioning and pine take off structure, includes hold-in range take-up pulley (3) that is close to hold-in range (100) stiff end, a plurality of teeth of hold-in range take-up pulley (3) with a plurality of tooth meshing of taking of hold-in range (100), its characterized in that: the synchronous belt tensioning wheel (3) can rotate and is fixed to enable the synchronous belt (100) to be tensioned, and meanwhile the synchronous belt tensioning wheel (3) can rotate reversely to enable the synchronous belt (100) to be loosened.

2. The synchronous belt tensioning and release structure of claim 1, wherein: the clamping device is characterized by further comprising a synchronous belt tensioning seat (1), wherein a U-shaped groove body (14) is formed in the synchronous belt tensioning seat (1), tensioning seat cover plates (2) are fixedly connected to two sides of the synchronous belt tensioning seat (1) respectively, a steel sleeve shaft (9) is fixedly arranged between the two tensioning seat cover plates (2) at the upper edge of the U-shaped groove body (14), a steel sleeve (10) is sleeved on the steel sleeve shaft (9), a shaft (8) is pivoted on one of the tensioning seat cover plates (2), a synchronous belt tensioning wheel (3) is fixedly arranged on the shaft (8) on the inner side of each tensioning seat cover plate (2), and the synchronous belt tensioning wheel (3) is located in the U-shaped groove body (14); a ratchet wheel (4) is fixedly arranged on a shaft (8) at the outer side of the tensioning seat cover plate (2); the tensioning seat cover plate (2) is provided with a sliding chute (15) with an opening at the lower end, a sliding block (11) matched with the sliding chute can move up and down, the lower end of the tensioning seat cover plate (2) is fixedly provided with a fixing plate (12) for plugging the sliding chute (15), the fixing plate (12) is provided with a threaded hole, and an adjusting screw pivoted with the sliding block (11) is in threaded connection with the threaded hole; pawl (5) are still established to the pivot on slider (11), still set firmly shell fragment fixed plate (7) on tensioning seat apron (2), the one end of setting firmly pawl shell fragment (6) on shell fragment fixed plate (7), the other end of pawl shell fragment (6) supports and presses on pawl (5), the claw point of pawl (5) supports and presses on ratchet (4).