CN216045340U

CN216045340U - Gear transmission mechanism with clearance eliminating structure

Info

Publication number: CN216045340U
Application number: CN202121764437.4U
Authority: CN
Inventors: 左文丹
Original assignee: Shenzhen Hongchuangxing Electromechanical Technology Co ltd
Current assignee: Shenzhen Hongchuangxing Electromechanical Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-03-15
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a gear transmission mechanism with a clearance eliminating structure, which comprises a power box, wherein the power box is of a hollow structure, a second supporting shaft is rotatably arranged on the inner wall of the bottom of the power box, a driving gear is fixedly sleeved on the second supporting shaft, one end of the second supporting shaft extends to the outer side of the top of the power box, a fixing plate is slidably connected to the inner wall of the bottom of the power box, a first supporting shaft is rotatably connected to the top of the fixing plate, and a lead screw is fixedly connected to one end of the first supporting shaft.

Description

Gear transmission mechanism with clearance eliminating structure

Technical Field

The utility model relates to the technical field of gear transmission, in particular to a gear transmission mechanism with a clearance eliminating structure.

Background

The gear transmission is a device for transmitting motion and power by a gear pair, and is a mechanical transmission mode which is most widely applied in various modern equipment. The transmission of the gear is accurate, the efficiency is high, the structure is compact, the work is reliable, the service life is long, and the gear transmission is most widely applied to modern machinery in various transmission forms.

When the gear and the gear are meshed for a long time, abrasion can occur, a gap exists, the gap is too large, the abrasion of the gear is aggravated easily, the transmission precision becomes low, the service life of the gear is shortened, the transmission structure is enabled to be in a problem, the whole mechanism is paralyzed, and the gear cannot be normally used, so that the gear transmission mechanism with the gap eliminating structure is provided for solving the provided problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a gear transmission mechanism with a clearance eliminating structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a gear transmission mechanism with a clearance eliminating structure comprises a power box, wherein the power box is of a hollow structure, a second supporting shaft is arranged on the inner wall of the bottom of the power box in a rotating mode, a driving gear is arranged on the second supporting shaft in a fixing mode, one end of the second supporting shaft extends to the outer side of the top of the power box, a fixing plate is connected to the inner wall of the bottom of the power box in a sliding mode, a first supporting shaft is connected to the top of the fixing plate in a rotating mode, a lead screw is fixedly connected to one end of the first supporting shaft, one end of the lead screw extends to the outer side of the top of the power box, a second bar-shaped hole in penetrating connection with the lead screw is formed in the top of the power box, a gear wheel is fixedly arranged on the first supporting shaft in a fixing mode, a pinion is sleeved on one side of the gear wheel, the gear wheel is meshed with the driving gear, a bottom plate which is attached to the bottom of the gear wheel is sleeved on the first supporting shaft, and an adjusting component for eliminating the clearance of the large gear is arranged in the power box.

Preferably, one side fixedly connected with connecting pipe of gear wheel, spacing cover is equipped with and accepts the axle on the connecting pipe, it is equipped with the bearing to accept epaxial fixed cover, the pinion fixed cover is established on the bearing.

Preferably, the adjusting part is including seting up the first bar hole in the headstock bottom, the downthehole through connection of first bar has the slide bar, the bottom fixedly connected with mounting panel of headstock, one side of mounting panel is rotated and is connected with the screw rod, the other end and the headstock bottom of screw rod rotate and are connected, the one end fixedly connected with handle of screw rod, the one end and the screw rod thread bush that the slide bar is located the headstock bottom are established and are connected, the one end that the slide bar is located the headstock inside is rotated and is connected with the connecting axle, the connecting axle top is rotated and is connected with the sliding plate, the top inner wall sliding connection of sliding plate and headstock, fixed cover is equipped with fixed gear on the outer wall of connecting axle, fixed gear and gear meshes mutually.

Preferably, the outer wall of the first support shaft is provided with a thread line, the thread line is connected with a top ring in a threaded manner, and the bottom of the top ring is abutted to the pinion.

Preferably, a plurality of rolling beads are provided inside the bearing.

Preferably, the outer wall of the connecting pipe is annularly provided with four convex blocks, and the bearing shaft is provided with a groove clamped with the four convex blocks.

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

1. according to the utility model, firstly, the bull gear is sleeved on the first support shaft and attached to the bottom plate, the bearing shaft is inserted into the connecting pipe through the groove, then the bearing is inserted into the bearing shaft, the pinion is inserted into the bearing, finally, the top ring is arranged on the thread line and is abutted against the pinion, so that the first support shaft is arranged, the second support shaft rotates to drive the drive gear to rotate, and the drive gear drives the bull gear to rotate.

2. According to the utility model, the screw rod is rotated to drive the sliding rod to move, the sliding rod moves to drive the connecting shaft to move, the connecting shaft drives the fixed gear to move, the fixed gear approaches to the large gear, the fixed gear pushes the large gear to drive the large gear to move, so that the large gear and the driving gear approach to each other more closely, gaps between teeth are reduced, and gaps are eliminated.

The transmission mechanism is of a detachable structure, replacement and maintenance of each part are facilitated, the fixed gear is driven to move by rotating the screw rod to push the large gear to move, the driving gear and the large gear are closer, gaps between teeth are reduced, and the gaps are eliminated.

Drawings

FIG. 1 is a front cross-sectional view of a gear transmission mechanism with a clearance elimination structure according to the present invention;

FIG. 2 is a top view of a bull gear of a gear transmission mechanism with a gap eliminating structure according to the present invention;

fig. 3 is an exploded schematic view of a gear transmission mechanism with a gap eliminating structure according to the present invention.

In the figure: 1. a bull gear; 2. a pinion gear; 3. a bearing; 4. rolling the beads; 5. a power box; 6. a bump; 7. a connecting pipe; 8. a first support shaft; 9. a top ring; 10. a connecting shaft; 11. a base plate; 12. a first bar-shaped hole; 13. a thread; 14. a second support shaft; 15. a groove; 16. a bearing shaft; 17. a screw rod; 18. a fixing plate; 19. a screw; 20. a slide bar; 21. a second bar-shaped hole; 22. fixing a gear; 23. the gears are driven.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-3, a gear transmission mechanism with a gap eliminating structure comprises a power box 5, wherein the power box 5 is a hollow structure, a second support shaft 14 is rotatably arranged on the inner wall of the bottom of the power box 5, a driving gear 23 is fixedly sleeved on the second support shaft 14, one end of the second support shaft 14 extends to the outer side of the top of the power box 5, a fixed plate 18 is slidably connected to the inner wall of the bottom of the power box 5, a first support shaft 8 is rotatably connected to the top of the fixed plate 18, one end of the first support shaft 8 is fixedly connected with a lead screw 17, one end of the lead screw 17 extends to the outer side of the top of the power box 5, a second strip-shaped hole 21 which is in penetrating connection with the lead screw 17 is arranged on the top of the power box 5, a large gear 1 is fixedly sleeved on the first support shaft 8, a small gear 2 is sleeved on one side of the large gear 1, the large gear 1 is meshed with the driving gear 23, a bottom plate 11 which is fixedly sleeved on the bottom of the large gear 1, the inside of the power box 5 is provided with an adjusting component for eliminating the clearance of the gearwheel 1.

Example two

The embodiment is improved on the basis of the first embodiment: referring to fig. 1-3, a gear transmission mechanism with a gap eliminating structure comprises a power box 5, wherein the power box 5 is a hollow structure, a second support shaft 14 is rotatably arranged on the inner wall of the bottom of the power box 5, a driving gear 23 is fixedly sleeved on the second support shaft 14, one end of the second support shaft 14 extends to the outer side of the top of the power box 5, a fixed plate 18 is slidably connected to the inner wall of the bottom of the power box 5, a first support shaft 8 is rotatably connected to the top of the fixed plate 18, one end of the first support shaft 8 is fixedly connected with a lead screw 17, one end of the lead screw 17 extends to the outer side of the top of the power box 5, a second strip-shaped hole 21 which is in penetrating connection with the lead screw 17 is formed in the top of the power box 5, a large gear 1 is fixedly sleeved on the first support shaft 8, a small gear 2 is sleeved on one side of the large gear 1, the large gear 1 is meshed with the driving gear 23, a connecting pipe 7 is fixedly connected to one side of the large gear 1, the outer wall of the connecting pipe 7 is annularly provided with four convex blocks 6, a bearing shaft 16 is provided with a groove 15 which is clamped with the four convex blocks 6, the upper limit sleeve of the connecting pipe 7 is provided with the bearing shaft 16, the bearing shaft 16 is fixedly sleeved with a bearing 3, the inside of the bearing 3 is provided with a plurality of rolling beads 4, a pinion 2 is fixedly sleeved on the bearing 3, a first supporting shaft 8 is fixedly sleeved with a bottom plate 11 which is jointed with the bottom of a gearwheel 1, the outer wall of the first supporting shaft 8 is provided with a thread line 13, the thread line 13 is connected with a top ring 9 in a threaded manner, the bottom of the top ring 9 is contacted with the pinion 2, firstly, the gearwheel 1 is sleeved on the first supporting shaft 8 and is jointed with the bottom plate 11, the bearing shaft 16 is spliced on the connecting pipe 7 through the groove 15, then the bearing 3 is spliced on the bearing shaft 16, the pinion 2 is spliced on the bearing 3, and finally the top ring 9 is installed on the thread line 13 and is contacted with the pinion 2, the installation of the first supporting shaft 8 is completed, the rotation of the second supporting shaft 14 can drive the driving gear 23 to rotate, the driving gear 23 can drive the gearwheel 1 to rotate, the inside of the power box 5 is provided with an adjusting component for eliminating the clearance of the gearwheel 1, the adjusting component comprises a first strip-shaped hole 12 arranged at the bottom of the power box 5, a sliding rod 20 is connected in the first strip-shaped hole 12 in a penetrating manner, the bottom of the power box 5 is fixedly connected with an installation plate, one side of the installation plate is rotatably connected with a screw rod 19, the other end of the screw rod 19 is rotatably connected with the bottom of the power box 5, one end of the screw rod 19 is fixedly connected with a handle, one end of the sliding rod 20 at the bottom of the power box 5 is connected with the screw rod 19 in a threaded sleeve manner, one end of the sliding rod 20 inside the power box 5 is rotatably connected with a connecting shaft 10, the top of the connecting shaft 10 is rotatably connected with a sliding plate, and the sliding plate is connected with the inner wall at the top of the power box 5 in a sliding manner, the outer wall of the connecting shaft 10 is fixedly sleeved with a fixed gear 22, the fixed gear 22 is meshed with the large gear 1, the screw rod 19 is rotated to drive the sliding rod 20 to move, the sliding rod 20 moves to drive the connecting shaft 10 to move, the connecting shaft 10 drives the fixed gear 22 to move, the fixed gear 22 approaches the large gear 1, the fixed gear 22 pushes the large gear 1 to drive the large gear 1 to move, the large gear 1 and the driving gear 23 are close to each other more tightly, gaps between teeth are reduced, and gaps are eliminated.

The working principle is as follows: firstly, the bull gear 1 is sleeved on the first supporting shaft 8 and is jointed with the bottom plate 11, the bearing shaft 16 is inserted on the connecting pipe 7 through the groove 15, then the bearing 3 is taken up and inserted on the bearing shaft 16, the pinion 2 is inserted on the bearing 3, finally the top ring 9 arranged on the thread line 13 is abutted against the pinion 2, the installation of the first supporting shaft 8 is completed, the second supporting shaft 14 rotates to drive the driving gear 23 to rotate, the driving gear 23 drives the bull gear 1 to rotate, the screw rod 19 is rotated to drive the sliding rod 20 to move, the sliding rod 20 moves to drive the connecting shaft 10 to move, the connecting shaft 10 drives the fixed gear 22 to move, the fixed gear 22 approaches to the bull gear 1, the fixed gear 22 pushes the bull gear 1 to drive the bull gear 1 to move, so that the bull gear 1 and the driving gear 23 approach to each other more tightly, the gap between teeth is reduced, and the gap is eliminated.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a gear drive of clearance structure disappears in area, includes headstock (5), its characterized in that, headstock (5) are hollow structure, the bottom inner wall of headstock (5) rotates and has second back shaft (14), fixed cover is equipped with drive gear (23) on second back shaft (14), the one end of second back shaft (14) extends to the top outside of headstock (5), the bottom inner wall sliding connection of headstock (5) has fixed plate (18), the top of fixed plate (18) is rotated and is connected with first back shaft (8), the one end fixedly connected with lead screw (17) of first back shaft (8), the one end of lead screw (17) extends to the top outside of headstock (5), second bar hole (21) with lead screw (17) through connection are seted up at the top of headstock (5), fixed cover is equipped with gear wheel (1) on first supporting shaft (8), one side cover of gear wheel (1) is equipped with pinion (2), gear wheel (1) and drive gear (23) mesh mutually, fixed cover is equipped with bottom plate (11) of laminating with gear wheel (1) bottom on first supporting shaft (8), the inside of headstock (5) is provided with the adjusting part that is used for eliminating gear wheel (1) clearance.

2. The gear transmission mechanism with the clearance eliminating structure is characterized in that a connecting pipe (7) is fixedly connected to one side of the large gear (1), a bearing shaft (16) is sleeved on the connecting pipe (7), a bearing (3) is fixedly sleeved on the bearing shaft (16), and the small gear (2) is fixedly sleeved on the bearing (3).

3. The gear transmission mechanism with the clearance eliminating structure is characterized in that the adjusting assembly comprises a first strip-shaped hole (12) formed in the bottom of the power box (5), a sliding rod (20) penetrates through the first strip-shaped hole (12), the bottom of the power box (5) is fixedly connected with a mounting plate, one side of the mounting plate is rotatably connected with a screw rod (19), the other end of the screw rod (19) is rotatably connected with the bottom of the power box (5), one end of the screw rod (19) is fixedly connected with a handle, one end of the sliding rod (20) located at the bottom of the power box (5) is connected with the screw rod (19) in a threaded sleeve manner, one end of the sliding rod (20) located inside the power box (5) is rotatably connected with a connecting shaft (10), the top of the connecting shaft (10) is rotatably connected with a sliding plate, and the sliding plate is slidably connected with the inner wall of the top of the power box (5), the fixed gear (22) is fixedly sleeved on the outer wall of the connecting shaft (10), and the fixed gear (22) is meshed with the large gear (1).

4. The gear transmission mechanism with the clearance eliminating structure is characterized in that a thread line (13) is arranged on the outer wall of the first supporting shaft (8), a top ring (9) is connected to the thread line (13) in a threaded mode, and the bottom of the top ring (9) is in contact with the pinion (2).

5. A gear transmission with a backlash elimination mechanism according to claim 2, wherein a plurality of rolling balls (4) are provided inside the bearing (3).

6. The gear transmission mechanism with the clearance eliminating structure is characterized in that four lugs (6) are annularly arranged on the outer wall of the connecting pipe (7), and a groove (15) clamped with the four lugs (6) is formed in the bearing shaft (16).