CN217207565U

CN217207565U - Zero return difference worm gear reducer device

Info

Publication number: CN217207565U
Application number: CN202123212368.9U
Authority: CN
Inventors: 张学伟; 鲍明; 高红军; 赵占霞; 岳彬
Original assignee: Shandong Wanting Intelligent Technology Co ltd
Current assignee: Shandong Wanting Intelligent Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-08-16
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to a zero return difference's worm gear reduction unit belongs to reduction gear technical field, including the reduction case, be provided with worm subassembly and worm wheel subassembly in the reduction case, rotate between worm subassembly, worm wheel subassembly and the reduction case and be connected, the both ends of worm subassembly are stretched out outside the reduction case, and drive gear is installed to the wherein one end of worm subassembly, and the worm subassembly includes first worm subassembly and second worm subassembly, and the cover is equipped with the spring on the first worm subassembly. The utility model discloses under the pretightning force effect of spring, first worm subassembly receives the effort all the time to meshing tooth on the first worm subassembly and the worm wheel is the close laminating all the time and is in the same place, can avoid appearing the transmission angle error, and turned angle is more accurate, has realized the effect of zero return difference.

Description

Zero return difference worm and gear speed reducer device

Technical Field

The utility model relates to a zero return difference's worm gear reduction gear belongs to reduction gear technical field.

Background

Speed reducers are very common in modern machines, and serve primarily to match rotational speed and transmit torque between a prime mover and a work machine or actuator.

In various speed reducers, it is also common to use worm gears as the drive system. However, in the operating state where the transmission between the worm wheel and the worm stops after the operation, a certain backlash and backlash between the worm wheel teeth and the worm teeth inevitably occur, i.e., backlash occurs. This will result in inaccurate drive and susceptibility to steering errors.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve exist among the prior art not enough, provide and to avoid appearing the transmission angle error, the more accurate worm gear speed reducer device of a zero return difference of turned angle.

The utility model discloses a realize through following technical scheme:

the worm and gear speed reducer device comprises a speed reducer box, wherein a worm assembly and a worm gear assembly are arranged in the speed reducer box, the worm assembly, the worm gear assembly and the speed reducer box are connected in a rotating mode, two ends of the worm assembly extend out of the speed reducer box, a transmission gear is installed at one end of the worm assembly, the worm assembly comprises a first worm assembly and a second worm assembly, and a spring is sleeved on the first worm assembly.

The utility model discloses under the pretightning force effect of spring, first worm subassembly receives the effort all the time to meshing tooth on the first worm subassembly and the worm wheel is the close laminating all the time and is in the same place, can avoid appearing the transmission angle error, and turned angle is more accurate, has realized the effect of zero return difference.

The utility model discloses a further improvement still, first worm subassembly is kept away from and is installed the regulation end cover between the tank wall of drive gear's one end and reduction case. The spring can be extruded frequently in the design and is easy to damage, and the design of adjusting the end cover is convenient for replacing the spring.

The utility model discloses a further improvement still, adjusts the end cover and passes through the bolt to be installed on the tank wall of reduction case. Through rotatory bolt, can change the distance between regulation end cover and the reduction case, the degree of being extruded of spring changes thereupon, when convenient the change, can adjust spring's effort size at will, has improved the utility model discloses an adaptability.

The utility model discloses a further improvement still, first worm subassembly includes first worm, and the both ends of first worm are equipped with first worm connecting rod, and the spring housing is equipped with on keeping away from drive gear's first worm connecting rod, respectively installs a first worm bearing on two first worm connecting rods.

The utility model discloses a further improvement still, the one end fixed connection of spring is on adjusting the end cover, and the other end fixed connection of spring is on first worm bearing. With the design, the mounting structure of the spring is more reliable.

The utility model discloses a further improvement still, second worm subassembly includes the second worm, and the both ends of second worm are equipped with second worm connecting rod, respectively install a second worm bearing on two second worm connecting rods.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic view of a front view structure according to an embodiment of the present invention.

Fig. 3 is a schematic sectional structure view of a-a in fig. 2.

Fig. 4 is a schematic top view of the embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of B-B in fig. 4.

In the figure: 1. a reducer case; 2. a worm gear assembly; 3. a transmission gear; 4. a first worm assembly; 5. a second worm assembly; 6. adjusting the end cover; 7. a worm gear connecting rod; 8. a worm gear bearing; 9. a first worm; 10. a first worm link; 11. a first worm bearing; 12. a spring; 13. a second worm; 14. a second worm link; 15. a second worm bearing; 16. a worm gear.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

The zero-return-difference worm and gear reducer device comprises a reducer box 1, wherein a worm assembly and a worm gear assembly 2 are arranged in the reducer box 1, the worm assembly, the worm gear assembly 2 and the reducer box 1 are connected in a rotating mode, two ends of the worm assembly extend out of the reducer box 1, a transmission gear 3 is installed at one end of the worm assembly, and the worm assembly comprises a first worm assembly 4 and a second worm assembly 5.

The first worm assembly 4 comprises a first worm 9, two ends of the first worm 9 are provided with first worm connecting rods 10, a spring 12 is sleeved on the first worm connecting rod 10 away from the transmission gear 3, and a first worm bearing 11 is respectively arranged on the two first worm connecting rods 10.

The second worm assembly 5 comprises a second worm 13, two ends of the second worm 13 are provided with second worm links 14, and two second worm bearings 15 are respectively mounted on the two second worm links 14.

The worm wheel assembly 2 comprises a worm wheel 16, worm wheel connecting rods 7 are arranged at two ends of the worm wheel 16, and worm wheel bearings 8 are respectively arranged on the two worm wheel connecting rods 7.

An adjusting end cover 6 is arranged between one end, far away from the transmission gear 3, of the first worm component 4 and the wall of the speed reducer box 1, and the adjusting end cover 6 is arranged on the wall of the speed reducer box 1 through bolts.

One end of the spring 12 is fixedly connected to the adjusting end cap 6, and the other end of the spring 12 is fixedly connected to the first worm bearing 11.

The working principle is as follows:

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative relationships in positions, if any, and do not necessarily have to be given qualitative meanings. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a zero return difference's worm gear reduction unit, includes reduction case (1), is provided with worm subassembly and worm wheel subassembly (2) in reduction case (1), rotates between worm subassembly, worm wheel subassembly (2) and reduction case (1) to be connected, and the both ends of worm subassembly stretch out outside reduction case (1), and drive gear (3), its characterized in that are installed to one of them end of worm subassembly: the worm assembly comprises a first worm assembly (4) and a second worm assembly (5), and a spring (12) is sleeved on the first worm assembly (4).

2. A zero backlash worm gear reducer assembly as set forth in claim 1, wherein: an adjusting end cover (6) is arranged between one end, far away from the transmission gear (3), of the first worm component (4) and the wall of the speed reducer box (1).

3. A zero backlash worm gear reducer assembly as set forth in claim 2, wherein: the adjusting end cover (6) is installed on the wall of the speed reducer box (1) through bolts.

4. A zero backlash worm gear reducer assembly as set forth in claim 2, wherein: the first worm assembly (4) comprises a first worm (9), first worm connecting rods (10) are arranged at two ends of the first worm (9), a spring (12) is sleeved on the first worm connecting rods (10) far away from the transmission gear (3), and a first worm bearing (11) is respectively arranged on each of the two first worm connecting rods (10).

5. A zero backlash worm gear reducer assembly as set forth in claim 4, wherein: one end of the spring (12) is fixedly connected to the adjusting end cover (6), and the other end of the spring (12) is fixedly connected to the first worm bearing (11).

6. A zero backlash worm gear reducer assembly as set forth in claim 1, wherein: the second worm assembly (5) comprises a second worm (13), second worm connecting rods (14) are arranged at two ends of the second worm (13), and a second worm bearing (15) is respectively mounted on each of the two second worm connecting rods (14).