CN211624113U

CN211624113U - Rack reduction gear with gear ratio convenient to adjust

Info

Publication number: CN211624113U
Application number: CN201922339914.1U
Authority: CN
Inventors: 王勇
Original assignee: Hangzhou Jiawei Automation Technology Co ltd
Current assignee: Hangzhou Jiawei Automation Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-10-02
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a make things convenient for rack reduction gear of adjusting gear ratio relates to transmission technical field, including transmission platform and plummer, the top of transmission platform is provided with the shifting chute, the inside of shifting chute is provided with movable block and spacing axle respectively, the top fixedly connected with rack of movable block, top one side fixedly connected with reducing gear box of plummer, and the top opposite side of plummer is provided with the baffle. The utility model discloses in, its design is more reasonable, the mechanism is optimized more, uses through the cooperation between hand wheel, regulating spindle, baffle, input shaft, output shaft, first driving gear, second driving gear, first driven gear and the second driven gear, and the adjusting gear ratio of being convenient for has increased different speed reduction effects, and uses through the cooperation between drive gear, rack, shifting chute, movable block and the spacing axle, prevents that the rack from taking place the skew at the removal process, has increased driven stability.

Description

Rack reduction gear with gear ratio convenient to adjust

Technical Field

The utility model relates to a transmission technical field specifically is a rack gear reduction transmission machine of convenient adjusting gear ratio.

Background

The transmission refers to power transmission between machines, and can also be said to transmit mechanical power to the terminal device through an intermediate medium, and such transmission modes include chain transmission, friction transmission, hydraulic transmission, gear transmission, belt transmission and the like. Rack and pinion gearboxes are one type of drive machinery and play an important part in the production of workshops.

However, in the prior art, most of rack reduction gears sold on the market are not reasonable enough in design and not optimized enough in mechanism.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rack reduction gear who conveniently adjusts gear ratio to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a rack reduction gear convenient for adjusting gear ratio comprises a transmission platform and a bearing platform, wherein a moving groove is formed in the top of the transmission platform, a moving block and a limiting shaft are respectively arranged inside the moving groove, a rack is fixedly connected to the top of the moving block, a reduction box is fixedly connected to one side of the top of the bearing platform, a partition plate is arranged on the other side of the top of the bearing platform, a cavity is formed in the reduction box, a first driving gear and a second driving gear are respectively arranged inside the rear side of the cavity, a first driven gear and a second driven gear are respectively arranged inside the front side of the cavity, an output shaft and an input shaft respectively penetrate through one side of the reduction box, which is far away from the partition plate, a transmission gear is arranged at one end of the output shaft, which is outside the reduction box, a stop block is fixedly connected to one end of the input shaft, which is outside the, the top that the plummer is in the baffle below is provided with the adjustment tank, and the plummer is kept away from the outer wall of reducing gear box and is provided with the hand wheel, the inside of adjustment tank is provided with the regulating spindle.

As a further aspect of the present invention: the input shaft is far away from the dog and runs through in proper order in reducing gear box and baffle and is connected through rotating with the output of motor, the output shaft is kept away from drive gear's one end and is connected through the bearing with the inner wall of cavity, first driving gear and second driving gear all are connected through interference fit with the input shaft, first driven gear and second driven gear all are connected through interference fit with the output shaft, first driving gear and first driven gear looks adaptation, second driving gear and second driven gear looks adaptation.

As a further aspect of the present invention: the one end of regulating spindle run through in the plummer and with hand wheel fixed connection, and the other end of regulating spindle passes through the bearing with the inner wall of adjustment tank and is connected, the surface that the regulating spindle is in the adjustment tank inside is provided with the screw thread, the downside of baffle is in the inside of adjustment tank, the regulating spindle passes through threaded connection with the baffle.

As a further aspect of the present invention: one side of the bearing table close to the reduction gearbox is fixedly connected with the outer wall of the transmission table, the transmission gear is connected with the output shaft in an interference fit mode, and the transmission gear is connected with the rack in a meshed mode.

As a further aspect of the present invention: the front end and the rear end of the limiting shaft are fixedly connected with the inner walls of the front side and the rear side of the moving groove, the moving block is matched with the moving groove, and the moving block is connected with the limiting shaft in a clearance fit mode.

As a further aspect of the present invention: the front side and the back side of the transmission table are symmetrically and fixedly connected with mounting plates, and mounting holes are formed in the mounting plates.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a more reasonable, the mechanism is optimized more, uses through the cooperation between hand wheel, regulating spindle, baffle, input shaft, output shaft, first driving gear, second driving gear, first driven gear and the second driven gear, and the adjusting gear ratio of being convenient for has increased different speed reduction effects, and uses through the cooperation between drive gear, rack, shifting chute, movable block and the spacing axle, prevents that the rack from taking place the skew at the removal process, has increased driven stability.

Drawings

Fig. 1 is a schematic view of a rack reduction gear which facilitates adjustment of a gear ratio.

FIG. 2 is a cross-sectional view of a top view of a reduction gearbox in a rack reduction gear that facilitates adjustment of gear ratios.

Fig. 3 is an enlarged schematic structural view of a in a rack reduction gear which facilitates adjustment of a gear ratio.

The labels in the figure are: 1. a transmission table; 2. a bearing table; 3. mounting a plate; 4. mounting holes; 5. a moving groove; 6. a moving block; 7. a limiting shaft; 8. a rack; 9. a reduction gearbox; 10. a transmission gear; 11. an output shaft; 12. an input shaft; 13. a cavity; 14. a stopper; 15. a first drive gear; 16. a second driving gear; 17. a first driven gear; 18. a second driven gear; 19. a partition plate; 20. a motor; 21. an adjustment groove; 22. a hand wheel; 23. an adjustment shaft.

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 to 3, in an embodiment of the present invention, a rack reduction gear transmission machine convenient for adjusting a gear ratio includes a transmission table 1 and a carrier table 2, a mounting plate 3 is symmetrically and fixedly connected to front and rear sides of the transmission table 1, a mounting hole 4 is formed on the mounting plate 3, a moving groove 5 is formed on a top of the transmission table 1, a moving block 6 and a limiting shaft 7 are respectively disposed inside the moving groove 5, front and rear ends of the limiting shaft 7 are fixedly connected to inner walls of front and rear sides of the moving groove 5, the moving block 6 is adapted to the moving groove 5, the moving block 6 is connected to the limiting shaft 7 in a clearance fit manner, a rack 8 is fixedly connected to a top of the moving block 6, a reduction box 9 is fixedly connected to one side of the top of the carrier table 2, a partition plate 19 is disposed on the other side of the top of the carrier table 2, a cavity 13 is disposed inside the reduction box 9, a, a first driven gear 17 and a second driven gear 18 are respectively arranged inside the front side of the cavity 13, an output shaft 11 and an input shaft 12 respectively penetrate through one side of the reduction gearbox 9 far away from the partition plate 19, a transmission gear 10 is arranged at one end of the output shaft 11 far away from the reduction gearbox 9, a stop 14 is fixedly connected at one end of the input shaft 12 far away from the reduction gearbox 9, a motor 20 is fixedly installed at one side of the partition plate 19 far away from the reduction gearbox 9, the input shaft 12 far away from the stop 14 sequentially penetrates through the reduction gearbox 9 and the partition plate 19 and is rotatably connected with the output end of the motor 20, one end of the output shaft 11 far away from the transmission gear 10 is connected with the inner wall of the cavity 13 through a bearing, a first driving gear 15 and a second driving gear 16 are connected with the input shaft 12 through interference fit, the first driven gear 17 and the second driven gear 18 are connected with the output shaft 11 through, the second driving gear 16 is matched with the second driven gear 18, an adjusting groove 21 is formed in the top, below the partition plate 19, of the bearing platform 2, a hand wheel 22 is arranged on the outer wall, away from the reduction gearbox 9, of the bearing platform 2, an adjusting shaft 23 is arranged inside the adjusting groove 21, one end of the adjusting shaft 23 penetrates through the bearing platform 2 and is fixedly connected with the hand wheel 22, the other end of the adjusting shaft 23 is connected with the inner wall of the adjusting groove 21 through a bearing, threads are arranged on the outer surface, located inside the adjusting groove 21, of the adjusting shaft 23, the lower side of the partition plate 19 is located inside the adjusting groove 21, the adjusting shaft 23 is connected with the partition plate 19 through threads, one side, close to the reduction gearbox 9, of the bearing platform 2 is fixedly connected with the outer wall of the transmission platform 1, the transmission gear 10 is connected with.

The utility model discloses a theory of operation is: in the using process, the adjusting shaft 23 is driven to rotate by rotating the hand wheel 22, the adjusting shaft 23 drives the input shaft 12 to transversely move on the horizontal plane through the partition plate 19, so that the first driving gear 15 is meshed with the first driven gear 17, or the second driving gear 16 is meshed with the second driven gear 18, namely, the gear ratio is adjusted, different speed reduction effects are realized, the motor 20 does work and drives the transmission gear 10 to rotate through the input shaft 12 and the output shaft 11, the transmission gear 10 drives the rack 8 to move along the direction of the moving groove 5, the transmission function is realized, and in the moving process of the rack 8, the rack 8 is prevented from deviating in the moving process through the moving groove 5, the moving block 6 and the limiting shaft 7.

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 a rack reduction gear who conveniently adjusts gear ratio, includes transmission platform (1) and plummer (2), its characterized in that: a moving groove (5) is formed in the top of the transmission platform (1), a moving block (6) and a limiting shaft (7) are arranged in the moving groove (5) respectively, a rack (8) is fixedly connected to the top of the moving block (6), a reduction box (9) is fixedly connected to one side of the top of the bearing platform (2), a partition plate (19) is arranged on the other side of the top of the bearing platform (2), a cavity (13) is formed in the reduction box (9), a first driving gear (15) and a second driving gear (16) are arranged in the cavity (13) at the rear side respectively, a first driven gear (17) and a second driven gear (18) are arranged in the cavity (13) at the front side respectively, an output shaft (11) and an input shaft (12) penetrate through one side, far away from the partition plate (19), of the reduction box (9), and a transmission gear (10) is arranged at one end, located outside the reduction box (9), of the, the input shaft (12) is located one end fixedly connected with dog (14) of reducing gear box (9) outside, one side fixed mounting that reducing gear box (9) were kept away from in baffle (19) has motor (20), the top that plummer (2) are in baffle (19) below is provided with adjustment tank (21), and plummer (2) keep away from the outer wall of reducing gear box (9) and be provided with hand wheel (22), the inside of adjustment tank (21) is provided with regulating spindle (23).

2. The rack reduction gear machine facilitating adjustment of a gear ratio according to claim 1, wherein: the input shaft (12) is far away from the stop block (14) and sequentially penetrates through the reduction gearbox (9) and the partition plate (19) and is connected with the output end of the motor (20) in a rotating mode, one end, far away from the transmission gear (10), of the output shaft (11) is connected with the inner wall of the cavity (13) through a bearing, the first driving gear (15), the second driving gear (16) and the input shaft (12) are connected in an interference fit mode, the first driven gear (17), the second driven gear (18) and the output shaft (11) are connected in an interference fit mode, the first driving gear (15) is matched with the first driven gear (17), and the second driving gear (16) is matched with the second driven gear (18).

3. The rack reduction gear machine facilitating adjustment of a gear ratio according to claim 1, wherein: the one end of regulating spindle (23) run through in plummer (2) and with hand wheel (22) fixed connection, and the other end of regulating spindle (23) passes through the bearing with the inner wall of adjustment tank (21) and is connected, the surface that regulating spindle (23) are in adjustment tank (21) inside is provided with the screw thread, the downside of baffle (19) is in the inside of adjustment tank (21), regulating spindle (23) passes through threaded connection with baffle (19).

4. The rack reduction gear machine facilitating adjustment of a gear ratio according to claim 1, wherein: one side of the bearing table (2) close to the reduction gearbox (9) is fixedly connected with the outer wall of the transmission table (1), the transmission gear (10) is connected with the output shaft (11) in an interference fit mode, and the transmission gear (10) is connected with the rack (8) in a meshed mode.

5. The rack reduction gear machine facilitating adjustment of a gear ratio according to claim 1, wherein: the front end and the rear end of the limiting shaft (7) are fixedly connected with the inner walls of the front side and the rear side of the moving groove (5), the moving block (6) is matched with the moving groove (5), and the moving block (6) is connected with the limiting shaft (7) in a clearance fit mode.

6. The rack reduction gear machine facilitating adjustment of a gear ratio according to claim 1, wherein: the front side and the rear side of the transmission table (1) are symmetrically and fixedly connected with mounting plates (3), and mounting holes (4) are formed in the mounting plates (3).