CN211474801U

CN211474801U - Worm gear reducer capable of effectively preventing belt from falling off

Info

Publication number: CN211474801U
Application number: CN201921927218.6U
Authority: CN
Inventors: 王兆华; 刘文兵
Original assignee: Minster Automation System Jiangsu Co ltd
Current assignee: Minster Automation System Jiangsu Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-09-11
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses an effectively prevent worm gear reduction gear that belt drops, including mount and lead screw, one side of mount is provided with the guide rail, the bottom of mount and guide rail is provided with the support, the spread groove has been seted up to the bottom of support, wherein, the lead screw runs through one side of mount and the bearing is connected, the one end that the bearing was kept away from to the lead screw is connected with the hand wheel, the outside of lead screw is connected with the screwed pipe, the screwed pipe sets up the bottom central position at the connecting seat, the connecting seat is connected through spout and guide rail. This effectively prevent worm gear reduction gear that belt drops connects the both ends of belt respectively in the draw-in groove of first belt pulley and second belt pulley, when motor circular telegram operation drove first belt pulley and rotates, and the transmission is carried out to the second belt pulley through taut belt to first belt pulley of pivoted, because the degree of depth of draw-in groove is greater than the thickness of belt, under the taut condition of belt, can avoid the belt to drop.

Description

Worm gear reducer capable of effectively preventing belt from falling off

Technical Field

The utility model relates to a reduction gear technical field specifically is a worm gear reduction gear that effectively prevents the belt and drop.

Background

The worm and gear reducer is a power transmission mechanism, which utilizes the speed converter of the gear to reduce the revolution number of the motor to the required revolution number and obtain a mechanism with larger torque, and the application range of the reducer is quite wide, the reducer can be seen in the transmission systems of various machines, and the track of the reducer can be seen from ships, automobiles, locomotives of transportation tools, heavy machines and tools for construction, processing machines and automatic production equipment used in the mechanical industry, common household appliances and clocks and watches in daily life, and the like, because part of the worm and gear reducer is transmitted by the belt, and the belt is easy to fall off in the using process, therefore, people hope to improve the working efficiency of the worm and gear reducer by innovating the worm and gear reducer, avoid the fall off of the transmission belt, be convenient to install and fix, and make the worm and gear exert the maximum value, along with the development of science and technology, the worm gear reducer capable of effectively preventing the belt from falling off has developed to a great extent, brings great convenience to people in the process of belt installation and use of the worm gear reducer, and the type and the number of the worm gear reducer are increasing day by day.

Although the types and the number of the worm gear speed reducers on the market are very large, the worm gear speed reducers which effectively prevent the belt from falling have the following defects: the equipment of the worm gear reducer is not convenient to fix, the belt on the belt wheel of the worm gear reducer is easy to fall off, and the tightness of the belt is not convenient to adjust by the worm gear reducer. Therefore, the prior worm gear reducer which effectively prevents the belt from falling off needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an effectively prevent worm gear reduction gear that belt drops to solve the worm gear reduction gear's on the existing market that the above-mentioned background art provided equipment be not convenient for fix, the belt on the worm gear reduction gear belt pulley drops easily and worm gear reduction gear is not convenient for adjust the problem of belt's elasticity.

In order to achieve the above object, the utility model provides a following technical scheme: a worm and gear speed reducer capable of effectively preventing a belt from falling off comprises a fixing frame and a screw rod, wherein one side of the fixing frame is provided with a guide rail, the bottoms of the fixing frame and the guide rail are provided with a bracket, the bottom of the bracket is provided with a connecting groove, wherein,

the screw rod penetrates through one side of the fixing frame to be connected with the bearing, one end, away from the bearing, of the screw rod is connected with the hand wheel, the outer side of the screw rod is connected with the threaded pipe, the threaded pipe is arranged in the center of the bottom of the connecting seat, the connecting seat is connected with the guide rail through the sliding groove, and the motor is installed above the connecting seat;

the one end of motor is connected with first belt pulley, be connected with the belt on the first belt pulley, the one end and the second belt pulley that first belt pulley was kept away from to the belt are connected, first belt pulley and second belt pulley are installed through draw-in groove and belt, the one end at the worm is connected to the second belt pulley, the worm sets up the inside at quick-witted case, the worm is connected with the worm wheel in quick-witted case, the internally mounted of worm wheel has the connecting rod.

Preferably, the number of the guide rails is two, the two guide rails are symmetrically distributed on the edges of the two sides of the fixing frame, and the cross section of each guide rail is in an I-shaped structure.

Preferably, the shape of the cross section of the bracket is L-shaped, the shape of the connecting groove at the bottom of the bracket is U-shaped, and the height of the bracket is larger than the radius of the hand wheel.

Preferably, the internal cross-sectional dimension of the threaded pipe is matched with the cross-sectional dimension of the screw rod, the length of the threaded pipe is smaller than that of the screw rod, and a threaded structure is formed between the threaded pipe and the screw rod.

Preferably, the cross-sectional dimension of the sliding groove in the connecting base is matched with the cross-sectional dimension of the connecting part of the guide rail, and the connecting base forms a sliding structure between the sliding groove and the guide rail.

Preferably, the clamping groove is circular and has a depth larger than the thickness of the belt.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the worm gear reducer capable of effectively preventing the belt from falling off is characterized in that a fixing frame is placed at a designated position, a U-shaped connecting groove at the bottom of a support is accurately butted with a designated mounting position, and a matched bolt penetrates through the connecting groove to fixedly connect the support and the designated position, so that equipment of the reducer can be conveniently and fixedly mounted;

(2) the worm gear reducer effectively preventing the belt from falling connects two ends of the belt to the clamping grooves of the first belt pulley and the second belt pulley respectively, when the motor is electrified to operate and drive the first belt pulley to rotate, the rotating first belt pulley drives the second belt pulley through the tensioned belt, and as the depth of the clamping groove is greater than the thickness of the belt, the belt can be prevented from falling off under the condition that the belt is tensioned;

(3) this effectively prevent turbine worm reduction gear that the belt drops rotates the hand wheel and drives the lead screw and rotate in the bearing, because the connecting seat carries out the stable connection through spout and guide rail for the lead screw moves about the screwed pipe of connecting seat bottom when rotating, moves the assigned position when the connecting seat, and the taut belt of first belt pulley and second belt pulley, thereby can conveniently adjust the elasticity of belt through rotatory lead screw.

Drawings

FIG. 1 is a schematic view of the main view structure of the worm gear reducer for effectively preventing the belt from falling off;

FIG. 2 is a schematic view of the cross-sectional structure of the worm gear reducer for effectively preventing the belt from falling off;

FIG. 3 is a schematic diagram of the right-view structure of the worm gear reducer for effectively preventing the belt from falling off;

fig. 4 is the utility model discloses effectively prevent the turbine worm reducer right side that the belt drops from looking at cross-sectional structure sketch map.

In the figure; 1. a fixed mount; 2. a guide rail; 3. a support; 4. connecting grooves; 5. a screw rod; 6. A bearing; 7. a hand wheel; 8. a threaded pipe; 9. a connecting seat; 10. a chute; 11. a motor; 12. A first pulley; 13. a belt; 14. a second pulley; 15. a card slot; 16. a worm; 17. a chassis; 18. a worm gear; 19. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a worm gear reducer capable of effectively preventing a belt from falling off comprises a fixing frame 1, guide rails 2, a support 3, a connecting groove 4, a screw rod 5, a bearing 6, a hand wheel 7, a threaded pipe 8, a connecting seat 9, a sliding groove 10, a motor 11, a first belt pulley 12, a belt 13, a second belt pulley 14, a clamping groove 15, a worm 16, a case 17, a worm wheel 18 and a connecting rod 19, wherein the guide rails 2 are arranged on one side of the fixing frame 1, the guide rails 2 are arranged in two numbers, the guide rails 2 are symmetrically distributed on edges of two sides of the fixing frame 1, the cross section of each guide rail 2 is in an I-shaped structure, the two guide rails 2 are symmetrically distributed on edges of two sides of the fixing frame 1, the motor 11 on the connecting seat 9 can be conveniently supported through the symmetrically distributed guide rails 2, the supports 3 are arranged at the bottoms of the fixing frame 1 and the guide rails 2, and, the connecting groove 4 at the bottom of the bracket 3 is U-shaped, the height of the bracket 3 is larger than the radius of the hand wheel 7, the section of the bracket 3 is L-shaped, the bracket 3 is conveniently fixed by a matched bolt, the connecting groove 4 is arranged at the bottom of the bracket 3, wherein,

the lead screw 5 penetrates through one side of the fixing frame 1 to be connected with the bearing 6, one end, far away from the bearing 6, of the lead screw 5 is connected with the hand wheel 7, the outer side of the lead screw 5 is connected with the threaded pipe 8, the inner section size of the threaded pipe 8 is matched with the section size of the lead screw 5, the length of the threaded pipe 8 is smaller than that of the lead screw 5, a threaded structure is formed between the threaded pipe 8 and the lead screw 5, the inner section size of the threaded pipe 8 is matched with that of the lead screw 5, the threaded pipe 8 can be driven to move left and right by rotating the lead screw 5, the threaded pipe 8 is arranged at the central position of the bottom of the connecting seat 9, the section size of the inner chute 10 of the connecting seat 9 is matched with that of the connecting part of the guide rail 2, the connecting seat 9 forms a sliding structure through the chute 10 and the guide rail 2, the distance between the first belt pulley 12 and the second belt pulley 14 can be conveniently adjusted by sliding the connecting seat 9 on the guide rail 2, the connecting seat 9 is connected with the guide rail 2 through the sliding groove 10, and the motor 11 is arranged above the connecting seat 9;

the one end of motor 11 is connected with first belt pulley 12, be connected with belt 13 on the first belt pulley 12, the one end and the second belt pulley 14 that first belt pulley 12 was kept away from to belt 13 are connected, first belt pulley 12 and second belt pulley 14 are installed through draw-in groove 15 and belt 13, the shape of draw-in groove 15 is ring shape, and the degree of depth of draw-in groove 15 is greater than the thickness of belt 13, and the degree of depth that sets up draw-in groove 15 is greater than the thickness of belt 13, can avoid belt 13 to drop from draw-in groove 15, the one end at worm 16 is connected to second belt pulley 14, worm 16 sets up the inside at quick-witted case 17, worm 16 is connected with worm wheel 18 in quick-witted case 17, the internally mounted of worm wheel 18 has connecting rod 19.

The working principle is as follows: when the worm gear reducer capable of effectively preventing the belt from falling off is used, firstly, the fixing frame 1 is placed at a specified position, the U-shaped connecting groove 4 at the bottom of the bracket 3 is accurately butted with a specified installation position, a matched bolt penetrates through the connecting groove 4 to connect and fix the bracket 3 with the specified position, then, two ends of the belt 13 are respectively connected in the clamping grooves 15 of the first belt pulley 12 and the second belt pulley 14, the lead screw 5 is driven to rotate in the bearing 6 by rotating the hand wheel 7, because the connecting seat 9 is stably connected with the guide rail 2 through the sliding groove 10, the lead screw 5 drives the threaded pipe 8 at the bottom of the connecting seat 9 to move left and right when the connecting seat 9 moves to the specified position, the first belt pulley 12 and the second belt pulley 14 strain the belt 13, when the motor 11 is electrified to operate and drive the first belt pulley 12 to rotate, the rotating first belt pulley 12 drives the second belt pulley 14 through the tensioned belt 13, the second belt pulley 14 drives the worm 16 and the worm wheel 18 in the case 17 to perform meshing transmission, and the connecting rod 19 extending out of the case 17 through the worm wheel 18 can be connected with external operation equipment so as to output the rotating speed and the torque of the motor 11 after speed reduction to a connecting mechanism of corresponding equipment, and the content which is not described in detail in the description belongs to the prior art which is well known to a person skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an effectively prevent worm gear reduction gear that belt drops, includes mount (1) and lead screw (5), its characterized in that: a guide rail (2) is arranged on one side of the fixed frame (1), a bracket (3) is arranged at the bottom of the fixed frame (1) and the guide rail (2), a connecting groove (4) is arranged at the bottom of the bracket (3),

the lead screw (5) penetrates through one side of the fixing frame (1) and is connected with the bearing (6), one end, far away from the bearing (6), of the lead screw (5) is connected with a hand wheel (7), the outer side of the lead screw (5) is connected with a threaded pipe (8), the threaded pipe (8) is arranged in the center of the bottom of the connecting seat (9), the connecting seat (9) is connected with the guide rail (2) through a sliding groove (10), and a motor (11) is installed above the connecting seat (9);

the one end of motor (11) is connected with first belt pulley (12), be connected with belt (13) on first belt pulley (12), the one end and second belt pulley (14) of first belt pulley (12) are kept away from in belt (13) are connected, install through draw-in groove (15) and belt (13) first belt pulley (12) and second belt pulley (14), the one end at worm (16) is connected in second belt pulley (14), worm (16) set up the inside at quick-witted case (17), worm (16) are connected with worm wheel (18) in quick-witted case (17), the internally mounted of worm wheel (18) has connecting rod (19).

2. The worm gear reducer for effectively preventing a belt from falling off as claimed in claim 1, wherein: the two guide rails (2) are symmetrically distributed on the edges of the two sides of the fixing frame (1), and the cross section of each guide rail (2) is in an I-shaped structure.

3. The worm gear reducer for effectively preventing a belt from falling off as claimed in claim 1, wherein: the cross-sectional shape of support (3) is "L" style of calligraphy, and the shape of support (3) bottom connecting groove (4) is "U" style of calligraphy to the height of support (3) is greater than the radius of hand wheel (7).

4. The worm gear reducer for effectively preventing a belt from falling off as claimed in claim 1, wherein: the inner section size of the threaded pipe (8) is matched with the section size of the screw rod (5), the length of the threaded pipe (8) is smaller than that of the screw rod (5), and a threaded structure is formed between the threaded pipe (8) and the screw rod (5).

5. The worm gear reducer for effectively preventing a belt from falling off as claimed in claim 1, wherein: the section size of the sliding groove (10) in the connecting seat (9) is matched with the section size of the connecting part of the guide rail (2), and the connecting seat (9) forms a sliding structure with the guide rail (2) through the sliding groove (10).

6. The worm gear reducer for effectively preventing a belt from falling off as claimed in claim 1, wherein: the clamping groove (15) is annular, and the depth of the clamping groove (15) is larger than the thickness of the belt (13).