CN217440749U

CN217440749U - Worm gear speed reducer for conveying equipment

Info

Publication number: CN217440749U
Application number: CN202221473676.9U
Authority: CN
Inventors: 顾金彪
Original assignee: Zhejiang Asijie Transmission Technology Co ltd
Current assignee: Zhejiang Asijie Transmission Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-16
Anticipated expiration: 2032-06-10

Abstract

The utility model provides a worm gear speed reducer for conveying equipment belongs to speed reducer technical field. This worm gear speed reducer for transfer apparatus, including box, worm input shaft and worm wheel output shaft all set up in the box, and worm input shaft and worm wheel output shaft meshing transmission connect, and the center of worm wheel output shaft has the type output shaft hole that runs through that sets up along the length direction of worm wheel output shaft, and the cross-section in output shaft hole is the hexagon. It sets up the output shaft hole of worm wheel output shaft into the hexagon, need not to cooperate the round pin key structure when it drives other pivot linkages, on the basis of guaranteeing the moment of torsion transmission, can also shorten the length of worm wheel output shaft, and then reduces the thickness and the volume of box, practices thrift the cost, more can satisfy the user demand of installation and the less transfer apparatus of usage space simultaneously.

Description

Worm gear speed reducer for conveying equipment

Technical Field

The utility model belongs to the technical field of the speed reducer, a worm gear speed reducer is related to, especially a worm gear speed reducer is used to transfer apparatus.

Background

The worm and gear speed reducer mainly comprises a box body, a worm gear and a worm, most of the worms of the worm and gear speed reducer in the prior art are of an integrated structure, one end of the worm and gear speed reducer is a cylindrical joint used for being connected with power input equipment, and the joint is provided with a key groove used for mounting a key; the other end is arranged in the box body through a bearing; the middle part of the worm is provided with a transmission gear connected with a worm wheel, the worm is used as the only part for power input and must be connected with the output end of other power equipment, the worm of the structure only provides a cylindrical joint, so that only one input mode is provided, when the worm is matched with a motor, a connecting piece, such as a belt pulley, a belt and the like, must be arranged, and the worm and gear reducer is troublesome to use due to the single input mode, so that the application range of the worm and gear reducer is limited, and Chinese patent (authorization notice number): CN201851592U discloses a worm gear speed reducer includes box, worm wheel, worm wheel and worm are installed inside the box, worm wheel and worm meshing, the worm includes input shaft, main shaft, the input shaft includes link and installation end, link and installation end all are cylindrically, be equipped with the driving gear that corresponds the worm wheel on the main shaft, the main shaft passes through driving gear and worm wheel meshing, main shaft one end is equipped with the shrinkage pool of the installation end that corresponds to be connected with the box through the bearing, the other end of main shaft passes through the bearing and is connected with the box, the input shaft passes through the installation end embedding and is connected with the main shaft in the shrinkage pool. The worm in this patent has two kinds of input interface collection in structure as an organic whole, consequently can provide two kinds of input methods of axle input interface and hole input interface through dismantling or installation input shaft as required, but it still does not solve the single problem of worm gear speed reducer output mode, simultaneously because worm gear speed reducer's worm wheel output shaft exports through shaft hole cooperation pin key structure mostly, worm wheel output shaft often need have longer length just can have higher moment of torsion, thereby make whole worm gear speed reducer's thickness great, the suitability is weak, be not applicable to the relatively compacter conveying equipment of mounted position very much.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a worm gear speed reducer for transfer apparatus.

The purpose of the utility model can be realized by the following technical proposal: the worm and gear speed reducer for the conveying equipment comprises a box body, a worm input shaft and a worm gear output shaft, wherein the worm input shaft and the worm gear output shaft are both arranged in the box body and are in meshed transmission connection with each other.

In foretell worm gear speed reducer for conveying equipment, the box has first through-hole corresponding to the antetheca of worm wheel output shaft front end, the box has the second through-hole corresponding to the back wall of worm wheel output shaft rear end, the aperture of first through-hole is less than the worm wheel external diameter of worm wheel output shaft, the aperture of second through-hole is greater than the worm wheel external diameter of worm wheel output shaft, the back wall of box has still linked firmly flange dish.

In the worm gear reducer for conveying equipment, the box body is provided with a mounting ring part protruding forwards, the inner diameter of the mounting ring part is larger than the aperture of the first through hole, a front oil seal is arranged in the mounting ring part, and the front oil seal is sleeved on the worm gear output shaft.

In the worm gear reducer for conveying equipment, the rear wall surface of the front wall of the box body is provided with a first accommodating concave cavity, the inner diameter of the first accommodating concave cavity is larger than the aperture of the first through hole, a front bearing is arranged in the first accommodating concave cavity, and the front bearing is sleeved on the worm gear output shaft.

In foretell worm gear speed reducer for conveying equipment, flange connection dish's antetheca face has the second holding cavity, be provided with the rear bearing in the second holding cavity, flange connection dish's back wall has the third holding cavity, be provided with the back oil blanket in the third holding cavity, the rear end of worm wheel output shaft pierces through flange connection dish, rear bearing and back oil blanket cover are established on the worm wheel output shaft.

In the worm gear reducer for a conveyor, the worm input shaft has an input shaft hole, and the inner wall of the input shaft hole has a key groove.

In the worm and gear speed reducer for conveying equipment, the box body is provided with a flange connecting seat positioned on the periphery of the input end of the worm input shaft, and the width of the box body positioned on the axial direction of the worm gear output shaft is smaller than the outer diameter of the flange connecting seat.

Compared with the prior art, the utility model has the advantages of it is following:

1. according to the worm gear speed reducer, the output shaft hole of the worm gear output shaft is hexagonal, and when the worm gear speed reducer drives other rotating shafts to link, a pin key structure is not needed to be matched, so that on the basis of ensuring torque transmission, the length of the worm gear output shaft can be shortened, the thickness and the volume of a box body are further reduced, the cost is saved, and meanwhile, the use requirement of conveying equipment with smaller installation and use space can be met;

2. this worm gear speed reducer machine's worm wheel output shaft is two-way output structure, and it sets up flange connection dish simultaneously at the rear wall of box, and it lies in when other equipment link to each other, both can adopt the associated mode of antetheca, also can adopt the flange joint formula of rear wall, and the connection mode selectivity is wider.

Drawings

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

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a cross-sectional view of another angle of the present invention.

Fig. 4 is a sectional view of the middle box and the flange connection plate of the present invention.

In the figure, 1, a box body; 101. a first through hole; 102. a second through hole; 103. a mounting ring portion; 104. a first accommodating cavity; 2. a worm input shaft; 201. an input shaft hole; 202. a key slot; 3. a worm gear output shaft; 301. an output shaft hole; 4. a flange connecting plate; 401. a second accommodating cavity; 402. a third accommodating concave cavity; 5. a front oil seal; 6. a front bearing; 7. a rear bearing; 8. a rear oil seal; 9. and (4) a flange connecting seat.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Referring to fig. 1 to 4, the worm and gear speed reducer for a conveying device in this embodiment includes a box 1, a worm input shaft 2 and a worm gear output shaft 3, the worm input shaft 2 and the worm gear output shaft 3 are both disposed in the box 1, the worm input shaft 2 and the worm gear output shaft 3 are in meshing transmission connection, a through output shaft hole 301 disposed along a length direction of the worm gear output shaft 3 is disposed in a center of the worm gear output shaft 3, and a cross section of the output shaft hole 301 is hexagonal. This embodiment need not to cooperate the round pin key structure when driving other pivot linkages through worm wheel output shaft 3's output shaft hole 301, on the basis of guaranteeing the moment of torsion transmission, can shorten worm wheel output shaft's length, and then reduce the thickness and the volume of box, practices thrift the cost, more can satisfy the installation simultaneously and the less transfer apparatus's of practical space user demand.

Concretely, the antetheca that box 1 corresponds to worm wheel output shaft 3 front end has first through-hole 101, box 1 has second through-hole 102 corresponding to the back wall of worm wheel output shaft 3 rear end, the aperture of first through-hole 101 is less than worm wheel output shaft 3's worm wheel external diameter, the aperture of second through-hole 102 is greater than worm wheel output shaft 3's worm wheel external diameter, the back wall of box 1 has still linked firmly flange dish 4, worm wheel output shaft 3 of this embodiment is two-way output structure, it sets up flange dish 4 at box 1's back wall simultaneously, when it lies in that other equipment link to each other, both can adopt the associated mode of antetheca formula, also can adopt the flange joint formula of back wall, the connection mode selectivity is wider.

Further, box 1 has forward bellied collar portion 103, and the internal diameter of collar portion 103 is greater than the aperture of first through-hole 101, and is provided with preceding oil blanket 5 in the collar portion 103, and preceding oil blanket 5 cover is established on worm wheel output shaft 3, and the back wall of box 1 antetheca has first holding cavity 104, and the internal diameter of first holding cavity 104 is greater than the aperture of first through-hole 101, and is provided with front bearing 6 in the first holding cavity 104, and front bearing 6 cover is established on worm wheel output shaft 3.

Further, the front wall surface of flange connection dish 4 has second holding cavity 401, is provided with rear bearing 7 in the second holding cavity 401, and the back wall surface of flange connection dish 4 has third holding cavity 402, is provided with back oil blanket 8 in the third holding cavity 402, and the rear end of worm wheel output shaft 3 pierces through flange connection dish 4, and rear bearing 7 and the 8 covers of back oil blanket are established on worm wheel output shaft 3.

Further, the worm input shaft 2 has an input shaft hole 201, and the inner wall of the input shaft hole 201 has a key groove 202.

Further, the box body 1 is provided with a flange connecting seat 9 positioned on the periphery of the input end of the worm input shaft 2, and the width of the box body 1 in the axial direction of the worm wheel output shaft 3 is smaller than the outer diameter of the flange connecting seat 9.

When the worm input shaft 2 is installed, the worm gear output shaft 3 which is provided with the front bearing 6 and the rear bearing 7 in a sleeved mode is placed into the rear end of the box body 1 with the second through hole 102, the flange plate 4 is covered at the rear end of the box body 1 and locked through bolts, then the front oil seal 5 and the rear oil seal 8 are embedded respectively, the installation is convenient, the sealing performance is good, meanwhile, the thin size is achieved, and the worm gear output shaft is suitable for being used for installation and transmission equipment with small using space.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a worm gear speed reducer for transfer apparatus, includes box (1), worm input shaft (2) and worm wheel output shaft (3) all set up in box (1), and worm input shaft (2) and worm wheel output shaft (3) meshing transmission are connected, its characterized in that, the center of worm wheel output shaft (3) has the type output shaft hole (301) that runs through that sets up along the length direction of worm wheel output shaft (3), the cross-section in output shaft hole (301) is the hexagon.

2. The worm and gear speed reducer for transmission equipment according to claim 1, wherein the front wall of the box body (1) corresponding to the front end of the worm gear output shaft (3) is provided with a first through hole (101), the rear wall of the box body (1) corresponding to the rear end of the worm gear output shaft (3) is provided with a second through hole (102), the aperture of the first through hole (101) is smaller than the outer diameter of the worm gear output shaft (3), the aperture of the second through hole (102) is larger than the outer diameter of the worm gear output shaft (3), and the rear wall surface of the box body (1) is fixedly connected with the flange connection disc (4).

3. The worm and gear speed reducer for conveying equipment as claimed in claim 2, wherein the box body (1) is provided with a mounting ring portion (103) protruding forwards, the inner diameter of the mounting ring portion (103) is larger than the aperture of the first through hole (101), a front oil seal (5) is arranged in the mounting ring portion (103), and the front oil seal (5) is sleeved on the worm gear output shaft (3).

4. The worm and gear speed reducer for conveying equipment as claimed in claim 3, wherein the rear wall surface of the front wall of the box body (1) is provided with a first accommodating cavity (104), the inner diameter of the first accommodating cavity (104) is larger than the aperture of the first through hole (101), a front bearing (6) is arranged in the first accommodating cavity (104), and the front bearing (6) is sleeved on the worm gear output shaft (3).

5. The worm and gear speed reducer for conveying equipment as claimed in claim 2, 3 or 4, wherein the front wall of the flange connection disc (4) is provided with a second accommodating cavity (401), a rear bearing (7) is arranged in the second accommodating cavity (401), the rear wall of the flange connection disc (4) is provided with a third accommodating cavity (402), a rear oil seal (8) is arranged in the third accommodating cavity (402), the rear end of the worm gear output shaft (3) penetrates through the flange connection disc (4), and the rear bearing (7) and the rear oil seal (8) are sleeved on the worm gear output shaft (3).

6. The worm gear reducer for conveying equipment according to claim 5, wherein the worm input shaft (2) has an input shaft hole (201), and an inner wall of the input shaft hole (201) has a key groove (202).

7. The worm and gear speed reducer for transmission equipment according to claim 6, wherein the box body (1) has a flange connection seat (9) located at the periphery of the input end of the worm input shaft (2), and the width of the box body (1) in the axial direction of the worm gear output shaft (3) is smaller than the outer diameter of the flange connection seat (9).