CN211820597U

CN211820597U - Synchronous belt tensioning wheel device

Info

Publication number: CN211820597U
Application number: CN202020487548.4U
Authority: CN
Inventors: 杨海松; 毛建荣
Original assignee: Bullmer Electromechanical Technology Co Ltd
Current assignee: Bullmer Electromechanical Technology Co Ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-10-30
Anticipated expiration: 2030-04-03

Abstract

The utility model belongs to the technical field of bent wrist machine, a hold-in range take-up pulley device is related to, including perpendicular casing upper segment and the casing lower segment that sets up, the upper end of casing upper segment and the front end of casing lower segment are provided with the synchronizing wheel, and the cover is equipped with the hold-in range on the synchronizing wheel, the below of hold-in range is provided with the gyro wheel of being connected with the hold-in range contact, be provided with the bearing in the gyro wheel, be provided with the stub in the bearing, bearing inner race and gyro wheel tight fit, bearing inner circle and stub tight fit, hold-in range take-up pulley device still includes stock and quarter butt, the front end of stock articulates on the stub, and the rear end articulates on casing upper segment or casing lower segment, is provided with the spout along length direction on the stock, and the front end of quarter butt is smooth to be established in the spout, and the. The utility model provides a hold-in range take-up pulley device has solved the inconsistent problem of hold-in range installation elasticity to and the jump tooth phenomenon that uses wearing and tearing to lead to.

Description

Synchronous belt tensioning wheel device

Technical Field

The utility model belongs to the technical field of bent wrist machine, a hold-in range take-up pulley device is related to.

Background

The wrist bending machine is an elbow-shaped cylinder and is used for lap-joint sewing of men's clothing, women's clothing, casual clothing, jeans clothing, shirts, work clothes, raincoats and the like. The synchronous belt of the wrist bending machine is an essential component of the wrist bending machine. At present, the following technical problems exist in the installation and use process of the synchronous belt of the wrist bending machine:

firstly, in the installation process of the synchronous belt of the wrist bending machine, due to factors such as the manufacturing precision of parts of a shell and the like, the situation that the tightness is inconsistent after installation occurs, and the phenomenon of tooth jumping during meshing can be caused due to too-tight tightness; and the over-tightening will aggravate the abrasion of the synchronous belt and influence the service life.

Secondly, the synchronous belt of the wrist bending machine becomes loose due to abrasion in the long-term use process, so that the tooth jumping condition during meshing can be caused, and the normal use of the machine is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art not enough, provide a hold-in range take-up pulley device, solved the inconsistent problem of hold-in range installation elasticity to and use the jump tooth phenomenon that wearing and tearing lead to.

In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a hold-in range take-up pulley device, includes perpendicular casing upper segment and the casing lower segment that sets up, the upper end of casing upper segment and the front end of casing lower segment are provided with the synchronizing wheel, and the cover is equipped with the hold-in range on the synchronizing wheel, the below of hold-in range is provided with the gyro wheel of being connected with the hold-in range contact, be provided with the bearing in the gyro wheel, be provided with the short pin in the bearing, bearing inner race and gyro wheel tight fit, bearing inner circle and short pin tight fit, hold-in range take-up pulley device still includes stock and quarter butt, the front end of stock articulates on the short pin, and the rear end articulates on casing upper segment or casing lower segment, is provided with along length direction's spout on the stock, and the front end of quarter butt is slided and is established in.

The front end of the long rod is provided with a through hole, a first shaft sleeve is fixed in the through hole, and the short pin is hinged with the first shaft sleeve. The first shaft sleeve is fixed on the long rod in a riveting mode.

The front end of the short rod is locked with the long rod through a shaft position screw, and the locking position of the short rod can slide in the sliding groove. And the shaft position screw is matched and locked with the nut.

The rear end of the long rod is hinged through a first long pin fixed on the upper section of the machine shell, the rear end of the short rod is hinged through a second long pin fixed on the upper section of the machine shell, and the second long pin is positioned below the first long pin. The first long pin and the second long pin are fixed on the upper section of the shell through screws arranged at two ends.

The rear end of the long rod is provided with a through hole, a second shaft sleeve is fixed in the through hole and hinged to the first long pin, the rear end of the short rod is provided with a through hole, a third shaft sleeve is fixed in the through hole and hinged to the second long pin. The second shaft sleeve is fixed on the long rod in a riveting mode, and the third shaft sleeve is fixed in a through hole in the rear end of the short rod in an interference fit mode.

And two sides of the second shaft sleeve are provided with check rings which are fixed on the first long pin, and the check rings on the two sides limit the second shaft sleeve.

The utility model also provides another kind of structure: a first base is fixed on the front side of the upper section of the casing, a first pin shaft is fixed in the first base, the rear end of the long rod is hinged to the first pin shaft, a second base is fixed on the upper side of the lower section of the casing, a second pin shaft is fixed in the second base, and the rear end of the short rod is hinged to the second pin shaft. The first base, the second base, the first pin shaft and the second pin shaft are fixed through bolts.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses according to the elasticity condition of hold-in range, rotate quarter butt to suitable position, along with the rotation of quarter butt, the position screw of axle slides in the spout of stock, and then makes the stock produce around the rotation of long round pin one, through fixing the contact of gyro wheel on the stock and hold-in range tensioning. The utility model discloses mechanical structure is simple, and the installation is adjusted conveniently, can effectively solve the inconsistent problem of hold-in range installation elasticity to and use the jump tooth phenomenon that wearing and tearing lead to.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of FIG. 1 with the timing belt removed;

FIG. 3 is a partial perspective view of FIG. 1;

FIG. 4 is an exploded view of FIG. 3;

fig. 5 is a perspective view of another embodiment of the present invention;

FIG. 6 is a partial perspective view of FIG. 5;

reference numerals: 1. an upper section of the shell; 2. a lower section of the casing; 3. a synchronizing wheel; 4. a synchronous belt; 5. a roller; 6. a bearing; 7. a short pin; 8. a long rod; 9. a short bar; 10. a chute; 11. a first shaft sleeve; 12. an axial screw; 13. a long pin I; 14. a second long pin; 15. a second shaft sleeve; 16. a third shaft sleeve; 17. a retainer ring; 18. a first base; 19. a first pin shaft; 20. a second base; 21. and a second pin shaft.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1-6:

the utility model provides a hold-in range take-up pulley device, includes casing upper segment 1 and casing lower segment 2 that perpendicular set up, the upper end of casing upper segment 1 and the front end of casing lower segment 2 are provided with synchronizing wheel 3, and the cover is equipped with hold-in range 4 on synchronizing wheel 3, the below of hold-in range 4 is provided with gyro wheel 5 of being connected with hold-in range 4 contact, be provided with bearing 6 in the gyro wheel 5, be provided with short round pin 7 in the bearing 6, bearing 6 outer lane and gyro wheel 5 tight fit, bearing 6 inner circle and short round pin 7 tight fit, hold-in range take-up pulley device still includes stock 8 and quarter butt 9, the front end of stock 8 articulates on short round pin 7, and the rear end articulates on casing upper segment 1 or casing lower segment 2, is provided with along length direction's spout 10 on stock 8, and the front end of quarter butt 9 is slided and is established in spout 10, and the rear end articulates on casing upper.

The front end of the long rod 8 is provided with a through hole, a first shaft sleeve 11 is fixed in the through hole, and the short pin 7 is hinged with the first shaft sleeve 11. The first shaft sleeve 11 is fixed on the long rod 8 in a riveting mode.

The front end of the short rod 9 is locked with the long rod 8 through a shaft position screw 12, and the locking position can slide in the sliding groove. The shaft position screw 12 is matched and locked with the nut.

The utility model discloses a theory of operation is: when the tightness of the synchronous belt 4 needs to be adjusted, the nut on the shaft position screw 12 is unscrewed, and the nut is locked after the short rod 9 is rotated to a proper position. In the process of rotation, axle position screw 12 moves in spout 10 of stock 8 along with the rotation of quarter butt 9, makes stock 8 produce the rotation around the pin joint, through the contact of gyro wheel 5 and hold-in range 4 of fixing on stock 8 with hold-in range 4 tensioning hold-in range 4.

Example 1

Referring to fig. 1-4, the rear end of the long rod 8 is hinged by a first long pin 13 fixed on the upper section 1 of the casing, the rear end of the short rod 9 is hinged by a second long pin 14 fixed on the upper section 1 of the casing, and the second long pin 14 is positioned below the first long pin 13. The first long pin 13 and the second long pin 14 are fixed on the upper section 1 of the machine shell through screws arranged at two ends. During adjustment, the short rod 9 rotates around the second long pin 14, and the long rod 8 rotates around the first long pin 13.

The rear end of the long rod 8 is provided with a through hole, a second shaft sleeve 15 is fixed in the through hole, the second shaft sleeve 15 is hinged to the first long pin 13, the rear end of the short rod 9 is provided with a through hole, a third shaft sleeve 16 is fixed in the through hole, and the third shaft sleeve 16 is hinged to the second long pin 14. The second shaft sleeve 15 is fixed on the long rod 8 in a riveting mode, and the third shaft sleeve 16 is fixed in a through hole in the rear end of the short rod 9 in an interference fit mode.

And the two sides of the second shaft sleeve 15 are provided with check rings 17, the check rings 17 are fixed on the first long pin 13, the check rings 17 on the two sides limit the second shaft sleeve 15, so that the position of the long rod 8 is limited, and the tensioning wheel device is prevented from shaking left and right in the running process of the machine.

Example two

Referring to fig. 5-6, a first base 18 is fixed on the front side of the upper section 1 of the casing, a first pin 19 is fixed in the first base 18, the rear end of the long rod 8 is hinged to the first pin 19, a second base 20 is fixed on the upper side of the lower section 2 of the casing, a second pin 21 is fixed in the second base 20, and the rear end of the short rod 9 is hinged to the second pin 21. The first base 18, the second base 19, the first pin shaft 20 and the second pin shaft 21 are fixed through bolts. During adjustment, the short rod 9 rotates around the second pin 21, and the long rod 8 rotates around the first pin 19.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A synchronous belt tensioning wheel device comprises a casing upper section (1) and a casing lower section (2) which are vertically arranged, wherein a synchronous wheel (3) is arranged at the upper end of the casing upper section (1) and the front end of the casing lower section (2), and a synchronous belt (4) is sleeved on the synchronous wheel (3), the synchronous belt tensioning wheel device is characterized in that a roller (5) in contact connection with the synchronous belt (4) is arranged below the synchronous belt (4), a bearing (6) is arranged in the roller (5), a short pin (7) is arranged in the bearing (6), the outer ring of the bearing (6) is tightly matched with the roller (5), the inner ring of the bearing (6) is tightly matched with the short pin (7), the synchronous belt tensioning wheel device further comprises a long rod (8) and a short rod (9), the front end of the long rod (8) is hinged on the short pin (7), and the rear end of the long rod is hinged on the casing upper section (1) or the casing, the long rod (8) is provided with a sliding groove (10) along the length direction, the front end of the short rod (9) is arranged in the sliding groove (10) in a sliding way, and the rear end of the short rod is hinged on the upper shell section (1) or the lower shell section (2).

2. A synchronous belt tensioner device as claimed in claim 1, wherein the front end of said long rod (8) is provided with a through hole, a first shaft sleeve (11) is fixed in the through hole, and said short pin (7) is hinged with the first shaft sleeve (11).

3. A timing belt tensioner assembly as claimed in claim 1, wherein the short bar (9) is locked at its front end to the long bar (8) by means of a shaft screw (12) and is slidably locked in the slide slot (10).

4. A synchronous belt tensioner device as claimed in claim 1, characterized in that the rear end of said long rod (8) is hinged by a long pin (13) fixed on the upper section (1) of the machine casing, the rear end of said short rod (9) is hinged by a long pin two (14) fixed on the upper section (1) of the machine casing, said long pin two (14) is located below the long pin one (13).

5. A synchronous belt tensioner device as claimed in claim 4, characterized in that the rear end of the long rod (8) is provided with a through hole, a second shaft sleeve (15) is fixed in the through hole, the second shaft sleeve (15) is hinged with the first long pin (13), the rear end of the short rod (9) is provided with a through hole, a third shaft sleeve (16) is fixed in the through hole, and the third shaft sleeve (16) is hinged with the second long pin (14).

6. A synchronous belt tensioner device as claimed in claim 5, characterized in that the two sides of the second sleeve (15) are provided with retaining rings (17), and the retaining rings (17) are fixed on the first long pin (13).

7. A synchronous belt tensioner device as claimed in claim 1, wherein the front side of the upper section (1) of the casing is fixed with a first base (18), a first pin (19) is fixed in the first base (18), the rear end of the long rod (8) is hinged on the first pin (19), a second base (20) is fixed on the upper side of the lower section (2) of the casing, a second pin (21) is fixed in the second base (20), and the rear end of the short rod (9) is hinged on the second pin (21).