CN220791932U

CN220791932U - Speed reducer worm gear structure with adjustable tooth side clearance

Info

Publication number: CN220791932U
Application number: CN202321940107.5U
Authority: CN
Inventors: 张磊
Original assignee: Suzhou Laibo Vacuum Technology Co ltd
Current assignee: Suzhou Laibo Vacuum Technology Co ltd
Priority date: 2023-07-24
Filing date: 2023-07-24
Publication date: 2024-04-16
Anticipated expiration: 2033-07-24

Abstract

The utility model discloses a speed reducer worm gear structure with adjustable tooth side gap, which comprises a base and a frame body, wherein the frame body is fixedly connected to the top of the base, a speed reducing mechanism is arranged in the frame body, an adjusting mechanism and a lubricating mechanism for adjusting the tooth side gap are arranged at the top of the frame body, and a limiting mechanism and a cleaning mechanism are arranged at one side of the frame body, so that the speed reducer worm gear structure has the beneficial effects that: the screw is rotated through the rotary table, the sliding sleeve is driven to move up and down, the gap between the worm and the gear side of the worm wheel is adjusted, the excessive friction force during transmission caused by the excessively small gap between the worm wheel and the worm is avoided, meanwhile, the excessively large gap between the worm wheel and the worm is prevented, the adjustment operation is stable and efficient, and the transmission efficiency of the worm wheel structure is improved; the device can timely clean the scraps on the worm wheel in the working process, the scraps are prevented from being driven into a transmission gap between the worm and the worm wheel again, abrasion between the worm and the worm wheel is aggravated, and the working life of the device is prolonged.

Description

Speed reducer worm gear structure with adjustable tooth side clearance

Technical Field

The utility model relates to the technical field of worm gear speed reducers, in particular to a speed reducer worm gear structure with adjustable tooth side gaps.

Background

Worm gear reducers are a common type of transmission that can be used to reduce rotational speed and increase torque. It consists of worm wheel and worm. The worm wheel is a gear with transverse threads, and the worm is a rotating element resembling a screw. When the worm rotates, its thread teeth mesh with the gear teeth of the worm wheel, causing the worm wheel to rotate therewith. The main advantages of worm gear reducers include compact construction, high torque transfer capability, smooth operation, and higher transmission efficiency.

The existing worm gear reducer equipment can not carry out the regulation work of gear side clearance when using, and the clearance that appears worm wheel and worm easily is too little, and frictional force is too big when causing the transmission, reduces transmission efficiency, or the clearance is great, produces great vibrations during the transmission, can't ensure work safety, on the other hand, hardly in time maintain the device, and the meshing department needs in time to oil lubrication, and the piece that the operation produced needs frequent clearance, avoids the wearing and tearing of worm wheel and worm, reduces the device life-span, increases maintenance cost.

Disclosure of Invention

The utility model aims to solve the problems and provide a worm gear structure of a speed reducer with adjustable backlash.

The utility model realizes the above purpose through the following technical scheme:

the worm gear structure of the speed reducer with the adjustable tooth side gap comprises a base and a frame body, wherein the frame body is fixedly connected to the top of the base, a speed reducing mechanism is arranged in the frame body, a limiting mechanism and a cleaning mechanism are arranged on one side of the frame body, and an adjusting mechanism and a lubricating mechanism for adjusting the tooth side gap are arranged at the top of the frame body; the adjusting mechanism comprises a screw, the top of the inner side of the frame body is rotationally connected with the screw, and the screw is in threaded connection with a sliding sleeve; the lubricating mechanism comprises an oil pump, the oil pump is fixedly arranged at the top of the frame body, an oil inlet pipe is communicated with an oil inlet of the oil pump, an oil outlet pipe is communicated with an oil outlet of the oil pump, and the oil outlet pipe penetrates through the frame body and extends to the inside of the frame body.

Preferably, the speed reducing mechanism comprises a worm wheel and a worm, one side of the worm wheel is arranged on the frame body through a rotating shaft, and the other end of the rotating shaft penetrates through the frame body and extends to the outside.

Preferably, the top end of the screw rod penetrates through the frame body and is fixedly connected with a turntable, and the bottom end of the screw rod is rotationally connected with the fixed block through a bearing.

Preferably, the frame is kept away from screw rod one side fixedly connected with slide bar, sliding connection has on the slide bar the sliding sleeve, the slide bar bottom with fixed block fixed connection, two fixed block fixed connection is in on the frame.

Preferably, one end of the worm is sleeved on the inner side of the sliding sleeve through a bearing, the other end of the worm penetrates through the sliding sleeve and extends to the outer side of the frame body, a belt pulley is fixedly connected with one end of the worm extending to the outer side of the frame body, and the bottom of the worm is meshed with the top of the worm wheel.

Preferably, the limit mechanism comprises a limit groove, a through hole is formed in one side of the frame body, the limit groove is formed in the through hole, a limit ring is fixedly connected to the worm, and the limit ring is in sliding connection with the inner wall of the limit groove.

Preferably, the cleaning mechanism comprises a mounting plate fixedly mounted on the inner wall of the frame body, a brush fixedly connected with the mounting plate, and the tail end of the brush is in contact with the tooth root of the worm wheel

Preferably, the bottom nozzle of the oil outlet pipe is aligned with the meshing position of the worm and the worm wheel.

The beneficial effects are that:

1. according to the utility model, the screw is rotated by the rotary table to drive the sliding sleeve to move up and down, the gap between the worm and the gear side of the worm is adjusted, the excessive friction force during transmission caused by too small gap between the worm and the worm is avoided, meanwhile, the excessive gap between the worm and the gear is prevented, the adjustment operation is stable and efficient, and the transmission efficiency of the worm gear structure is improved;

2. according to the utility model, the device can timely clean the scraps on the worm wheel in the working process, so that the scraps are prevented from being driven into a transmission gap between the worm and the worm wheel again, the abrasion between the worm and the worm wheel is increased, and the working life of the device is prolonged.

Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a front cross-sectional view of a speed reducer worm gear configuration with adjustable backlash in accordance with the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a worm gear structure of a speed reducer with adjustable backlash according to the present utility model;

FIG. 3 is a perspective view of a speed reducer worm gear configuration with adjustable backlash according to the present utility model;

fig. 4 is a schematic view of another view angle internal structure of a speed reducer worm gear structure slurry brushing mechanism with adjustable tooth side gap according to the utility model.

The reference numerals are explained as follows: 1. a base; 2. a frame; 3. a speed reducing mechanism; 301. a worm wheel; 302. a worm; 303. a rotating shaft; 4. an adjusting mechanism; 401. a screw; 402. a sliding sleeve; 403. a slide bar; 404. a turntable; 405. a fixed block; 5. a limiting mechanism; 501. a limit groove; 502. a through hole; 503. a limiting ring; 6. a cleaning mechanism; 601. a mounting plate; 602. a brush; 7. a lubrication mechanism; 701. an oil pump; 702. an oil inlet pipe; 703. an oil outlet pipe; 8. a belt pulley.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The utility model is further described below with reference to the accompanying drawings:

examples

As shown in fig. 1-4, a worm gear structure of a speed reducer with adjustable tooth side gap comprises a base 1 and a frame body 2, wherein the frame body 2 is fixedly connected to the top of the base 1, a speed reducing mechanism 3 is arranged in the frame body 2, an adjusting mechanism 4 and a lubricating mechanism 7 for adjusting the tooth side gap are arranged at the top of the frame body 2, and a limiting mechanism 5 and a cleaning mechanism 6 are arranged on one side of the frame body 2.

In the present embodiment, the reduction mechanism 3 includes a worm wheel 301 and a worm 302, one side of the worm wheel 301 is mounted on the frame 2 through a rotation shaft 303, and the other end of the rotation shaft 303 passes through the frame 2 and extends to the outside.

In this embodiment, the adjusting mechanism 4 includes a screw 401, the top inside the frame 2 is rotationally connected with the screw 401, the screw 401 is threaded with a sliding sleeve 402, the top end of the screw 401 passes through the frame 2 and is fixedly connected with a turntable 404, the bottom end of the screw is rotationally connected with a fixed block 405 through a bearing, the frame 2 is fixedly connected with a sliding rod 403 on one side far away from the screw 401, the sliding rod 403 is slidingly connected with the sliding sleeve 402, the bottom end of the sliding rod 403 is fixedly connected with the fixed block 405, and the two fixed blocks 405 are fixedly connected on the frame 2.

In this embodiment, one end of the worm 302 is sleeved on the inner side of the sliding sleeve 402 through a bearing, the other end of the worm 302 passes through the sliding sleeve 402 and extends to the outer side of the frame 2, one end of the worm 302 extending to the outer side of the frame 2 is fixedly connected with the belt pulley 8, the bottom of the worm 302 is meshed with the top of the worm wheel 301, the screw 401 is rotated through the rotating disc 404 to drive the sliding sleeve 402 to move up and down, the gap between the worm 302 and the gear side of the worm wheel 301 is adjusted, the excessive friction force between the worm wheel 301 and the worm 302 is avoided when the gap between the worm wheel 301 and the worm 302 is too small, meanwhile, the gap between the worm wheel 301 and the worm 302 is prevented from being too large, the adjustment operation is stable and efficient, and the transmission efficiency of equipment is improved.

In this embodiment, the limiting mechanism 5 includes a limiting groove 501, a through hole 502 is formed on one side of the frame 2, the limiting groove 501 is formed in the through hole 502, a limiting ring 503 is fixedly connected to the worm 302, and the limiting ring 503 is slidably connected to the inner wall of the limiting groove 501.

In this embodiment, the cleaning mechanism 6 includes mounting panel 601, mounting panel 601 fixed mounting is on the framework 2 inner wall, fixedly connected with brush 602 on the mounting panel 601, and brush 602 end and worm wheel 301 tooth root contact, and the piece on the worm wheel 301 can be cleared up in time to the equipment in the course of the work, avoids the piece to be driven into the transmission clearance with worm 302 again, aggravates wearing and tearing between worm 302 and the worm wheel 301, extension equipment's life.

In this embodiment, the lubrication mechanism 7 includes an oil pump 701, the oil pump 701 is fixedly installed at the top of the frame 2, an inlet of the oil pump 701 is communicated with an oil inlet pipe 702, an outlet of the oil pump 701 is communicated with an oil outlet pipe 703, the oil outlet pipe 703 penetrates through the frame 2 and extends into the frame 2, and a nozzle at the bottom of the oil outlet pipe 703 is aligned with a meshing position of the worm 302 and the worm wheel 301.

Working principle: when the device is used, the screw 401 is rotated through the rotary table 404, the sliding sleeve 402 which is in threaded connection with the screw 401 is driven to move up and down under the constraint of the sliding rod 403, so that the size of a backlash of the worm 301 and the worm 302 is adjusted according to the meshing condition of the worm 301 and the worm 302, the excessive friction force caused by the excessive small backlash of the worm 301 and the worm 302 in transmission is avoided, meanwhile, the transmission efficiency of the device is reduced, and when scraps generated by friction of the worm 301 and the worm 302 are attached to the worm 301, the scraps are sieved by the brush 602, so that the worm 301 does not carry scraps when rotating upwards, the scraps are prevented from being driven into the transmission clearance with the worm 302 again, the oil pump 701 is started, oil injection at the meshing position can be lubricated, the service life of the device is prolonged, and the maintenance cost is reduced.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. The utility model provides an adjustable gear backlash's speed reducer worm gear structure, includes base (1) and framework (2), framework (2) fixed connection is in base (1) top, framework (2) inside is provided with reduction gears (3), framework (2) one side is provided with stop gear (5) and clean mechanism (6), its characterized in that: an adjusting mechanism (4) and a lubricating mechanism (7) for adjusting the backlash are arranged at the top of the frame body (2);

the adjusting mechanism (4) comprises a screw (401), the top of the inner side of the frame body (2) is rotationally connected with the screw (401), and a sliding sleeve (402) is connected to the screw (401) in a threaded manner;

the lubricating mechanism (7) comprises an oil pump (701), the oil pump (701) is fixedly arranged at the top of the frame body (2), an oil inlet pipe (702) is communicated with an inlet of the oil pump (701), an oil outlet pipe (703) is communicated with an outlet of the oil pump (701), and the oil outlet pipe (703) penetrates through the frame body (2) and extends into the frame body (2).

2. The adjustable backlash speed reducer worm gear structure as set forth in claim 1, characterized in that: the speed reducing mechanism (3) comprises a worm wheel (301) and a worm (302), one side of the worm wheel (301) is installed on the frame body (2) through a rotating shaft (303), and the other end of the rotating shaft (303) penetrates through the frame body (2) and extends to the outside.

3. The adjustable backlash speed reducer worm gear structure as set forth in claim 1, characterized in that: the top end of the screw rod (401) penetrates through the frame body (2) and is fixedly connected with a rotary table (404), and the bottom end of the screw rod is rotationally connected with a fixed block (405) through a bearing.

4. A speed reducer worm gear structure with adjustable backlash as set forth in claim 3, characterized in that: the frame body (2) is fixedly connected with a sliding rod (403) on one side far away from the screw rod (401), the sliding sleeve (402) is connected to the sliding rod (403) in a sliding mode, the bottom end of the sliding rod (403) is fixedly connected with the fixing blocks (405), and the two fixing blocks (405) are fixedly connected to the frame body (2).

5. The adjustable backlash speed reducer worm gear structure as set forth in claim 2, characterized in that: one end of the worm (302) is sleeved on the inner side of the sliding sleeve (402) through a bearing, the other end of the worm passes through the sliding sleeve (402) and extends to the outer side of the frame body (2), one end of the worm (302) extending to the outer side of the frame body (2) is fixedly connected with a belt pulley (8), and the bottom of the worm (302) is meshed with the top of the worm wheel (301).

6. The adjustable backlash speed reducer worm gear structure as set forth in claim 2, characterized in that: the limiting mechanism (5) comprises a limiting groove (501), a through hole (502) is formed in one side of the frame body (2), the limiting groove (501) is formed in the through hole (502), a limiting ring (503) is fixedly connected to the worm (302), and the limiting ring (503) is slidably connected with the inner wall of the limiting groove (501).

7. The adjustable backlash speed reducer worm gear structure as set forth in claim 2, characterized in that: the cleaning mechanism (6) comprises a mounting plate (601), the mounting plate (601) is fixedly mounted on the inner wall of the frame body (2), a hairbrush (602) is fixedly connected to the mounting plate (601), and the tail end of the hairbrush (602) is in contact with the tooth root of the worm wheel (301).

8. The adjustable backlash speed reducer worm gear structure as set forth in claim 2, characterized in that: the bottom nozzle of the oil outlet pipe (703) is aligned with the meshing position of the worm (302) and the worm wheel (301).