CN212377213U

CN212377213U - Novel speed reducing mechanism

Info

Publication number: CN212377213U
Application number: CN202020658508.1U
Authority: CN
Inventors: 杨长期
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-01-19
Anticipated expiration: 2030-04-26

Abstract

The utility model belongs to the technical field of speed reducers, in particular to a novel speed reducing mechanism, which comprises an input shaft, an output shaft and a bracket for fixing the input shaft and the output shaft, wherein the input shaft is a worm and is connected with a power source; the output shaft is provided with a mounting wheel, a plurality of upright posts are circumferentially distributed on the normal surface of the mounting wheel, the upright posts are protruded on the normal surface, and rotating wheels are arranged on the upright posts; the output shaft is coupled with the worm through a rotating wheel in the mounting wheel; the utility model adopts the rotating wheel and the worm to replace the prior gear meshing structure, changes the original contact friction into the rolling friction, greatly reduces the energy loss caused by the original contact friction, reduces the friction coefficient, greatly increases the transmission performance and has better speed reduction effect; the rotating wheel is preferably provided with a bearing, and the bearing has better rotating performance and can effectively reduce the friction coefficient.

Description

Novel speed reducing mechanism

Technical Field

The utility model belongs to the technical field of the speed reducer, refer in particular to a novel reduction gears.

Background

At present, the speed reducer is an independent component consisting of gear transmission, worm transmission and gear-worm transmission which are enclosed in a rigid shell, plays a role in matching rotating speed and transmitting torque between a prime motor and a working machine or an actuating mechanism, and is widely applied to modern machinery; the speed reducer is generally used for low-speed and large-torque transmission equipment, and the purpose of reducing speed is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer.

The Chinese utility model 2017205058489 discloses a suspension type gear speed reducer, which comprises a box body, an input gear shaft, a middle shaft gear, a middle gear shaft, an output gear and an output hollow shaft, wherein two ends of the middle gear shaft are respectively connected with a backstop, and the backstop comprises a shell, a retaining ring for a shaft, a cover plate, a star wheel, a spring, a top pin and a roller; the utility model provides a reduction gears adopts gear engagement's form, and the gear is at the meshing in-process, and mutual friction between the teeth of a cogwheel, thereby the friction can obstruct gear drive and reduce reduction gears's speed reduction efficiency, and the gear tooth is cracked easily when using moreover, repairs the difficulty.

Disclosure of Invention

The utility model aims at providing a simple structure can provide the novel reduction gears of better speed reduction effect.

The purpose of the utility model is realized like this:

a novel speed reducing mechanism comprises an input shaft, an output shaft and a bracket for fixing the input shaft and the output shaft, wherein the input shaft is a worm and is connected with a power source; the output shaft is provided with a mounting wheel, a plurality of upright posts are circumferentially distributed on the normal surface of the mounting wheel, the upright posts are protruded on the normal surface, and rotating wheels are arranged on the upright posts; the output shaft is coupled with the worm through a rotating wheel in the mounting wheel.

Furthermore, the rotating wheel is a bearing, the upright post is fixedly connected with an inner ring of the bearing, and the spiral groove of the worm is a cam groove.

Furthermore, a plurality of mounting grooves are formed in the mounting wheel, the stand column penetrates through the mounting grooves, and a fixing piece is arranged at the other end of the stand column.

Further, the bearing is a roller bearing.

Furthermore, a through hole is formed in the center of the mounting wheel, the output shaft penetrates through the through hole to be connected with the mounting wheel, and limiting pieces are fixed on the output shafts on the two sides of the mounting wheel and used for limiting the mounting wheel on the output shaft.

Furthermore, the output shafts on two sides of the mounting wheel are provided with threads, the limiting part is in a circular ring shape, the inner ring of the limiting part is internally provided with matched threads, and the limiting part is detachably fixed on the output shafts through the threads.

Further, the center of the mounting wheel is also provided with a boss, and the boss is abutted to the limiting part. Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model adopts the rotating wheel and the worm to replace the prior gear meshing structure, changes the original contact friction into the rolling friction, greatly reduces the energy loss caused by the original contact friction, reduces the friction coefficient, greatly increases the transmission performance and has better speed reduction effect; the rotating wheel is preferably provided with a bearing, and the bearing has better rotating performance and can effectively reduce the friction coefficient.

2. The mounting wheel in the utility model is provided with a mounting groove for connection, which is convenient for the assembly of the bearing; and if the motor breaks down and leads to the bearing fracture when the transportation, the mounting groove can make things convenient for the maintenance of bearing, change to compare gear reducer, change the bearing than repair the convenient and fast more of the teeth of a cogwheel.

3. In the utility model, the bearing is arranged on the normal surface of the mounting wheel, which is beneficial to facilitating the establishment of the mounting groove and the mounting of the bearing; moreover, the arrangement mode enables the input shaft and the output shaft to be more compact, thereby reducing the volume of the speed reducing mechanism.

4. The utility model discloses in, roller bearing is adopted to the bearing, roller bearing compare with ball bearing, and it is more firm, and rotation accuracy is high, select for use the convenience, has better performance.

5. The utility model discloses the installation wheel sets up with the output shaft components of a whole that can function independently, makes things convenient for this reduction gears's transportation, equipment to convenient the maintenance.

6. The utility model discloses a locating part passes through the threaded fixation on the output shaft, and it is fixed firm, and it is convenient to dismantle.

7. The utility model discloses an installation wheel center still is equipped with the boss, and it has increased the mechanical strength of installation wheel, increases this reduction gears life.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

The reference numerals in the figures denote the meanings:

1-a worm; 2-an output shaft; 3, mounting wheels; 4-a bearing; 5-mounting grooves; 6-upright post; 7-normal noodle; 8-a through hole; 9-a limiting member; 10-boss; 11-bracket.

Detailed Description

The invention will be further described with reference to specific embodiments below:

a novel speed reducing mechanism is shown in figures 1 and 2 and comprises an input shaft, an output shaft 2 and a bracket 11 for fixing the input shaft and the output shaft 2; the support 11 is used for supporting the input shaft and the output shaft, and can be a shell of the speed reducer or other supporting elements in the speed reducer as long as the supporting function can be achieved; wherein the input shaft is a worm 1, and one end of the input shaft is provided with a motor for inputting power to the speed reducing mechanism; the output shaft 2 is provided with a mounting wheel 3, and a plurality of rotating wheels protruding on the mounting wheel 3 are distributed on the circumference of the mounting wheel 3 by taking the output shaft 2 as the center; when the speed reducing mechanism operates, the rotating wheel is coupled with the worm 1, and when the input shaft moves, the output shaft 2 is driven to move through the structure that the rotating wheel is coupled with the worm 1, so that the speed reducing mechanism plays a role of a speed reducer; particularly, the outer ring surface of the rotating wheel is abutted against the tooth surface of the spiral teeth in the worm 1, when the worm 1 moves at a high speed, the friction between the rotating wheel and the tooth surface in the worm 1 is converted into rolling by the rotating wheel, so that the contact friction between the original gears is converted into the rolling friction of the rotating wheel, the friction coefficient is reduced, the power loss caused by the friction is correspondingly reduced, and the speed reducing mechanism has a better speed reducing effect compared with the conventional gear speed reducing mechanism.

The mounting wheel 3 is made of metal materials, the rotating wheel is a bearing 4, the spiral groove of the worm 1 is a cam groove, in order to be matched with the bearing 4, mounting grooves 5 matched with the bearing 4 in number are formed in the mounting wheel 3, an upright post 6 is arranged in the inner ring of the bearing 4, the upright post 6 is connected and fixed with the inner ring of the bearing 4, and the bearing 4 is fixed in the mounting grooves 5 through the upright post 6; the bearing 4 can be disassembled through the mounting groove 5, so that the speed reducing mechanism can be disassembled into smaller parts, and the transportation is convenient; moreover, when the existing gear reduction mechanism moves, the gear is easy to break, the broken gear is difficult to maintain, and the whole gear needs to be replaced when the broken gear is serious, and in the utility model, if the bearing 4 is damaged and broken, a user can detach the bearing 4 through the mounting groove 5 and replace the bearing; it is convenient to change, maintenance is swift.

In this embodiment, the mounting groove 5 is provided on the normal surface 7 of the mounting wheel 3, the upright 6 of the bearing 4 passes through the mounting groove 5, and a nut is added on the other end of the bearing 4, so that the bearing 4 is fixed on the normal surface 7 of the mounting wheel 3; at the moment, the mounting wheel 3 is vertical to the worm 1, and the bearing 4 is coupled with the worm 1 on a normal surface 7 of the mounting wheel 3; the bearing 4 is arranged on the normal surface 7, so that the installation groove 5 and the bearing 4 are convenient to open, in other embodiments, the installation groove 5 can be arranged on the outer ring of the installation wheel 3, at the moment, the installation wheel 3 is arranged in parallel with the worm 1 for coupling, but in general, the surface of the outer ring of the installation wheel 3, which is provided for a manufacturer to open the installation groove 5, is smaller than the normal surface 7 of the installation wheel 3, which is difficult for the manufacturer to process and can cause part scrap due to misoperation, therefore, in the embodiment, the bearing 4 is arranged on the normal surface 7 of the installation groove 5; the form of the detachable upright post 6 can further facilitate the user to overhaul the damaged bearing 4 or upright post 6; meanwhile, the connection form has a compact overall structure, so that the overall size of the speed reducing mechanism is reduced, the installation space of the speed reducing mechanism is reduced, and the speed reducing mechanism can be applied to various different use scenes.

Further, the bearing 4 adopts a roller bearing, and the roller bearing has smaller starting torque compared with a ball bearing, and is high in rotation precision and convenient to select.

Furthermore, a through hole 8 is formed in the mounting wheel 3, the output shaft 2 penetrates through the through hole 8 to be connected with the mounting wheel 3, limiting parts 9 are arranged on the output shaft 2 on two sides of the mounting wheel 3, and the mounting wheel 3 is limited on the output shaft 2 through the limiting parts 9; specifically, the output shaft 2 is provided with a thread, the limiting part 9 is annular, the inner ring of the output shaft is provided with a thread, and the bearing 4 is fixed through the thread, so that the mounting wheel 3 can be detachably fixed in the output shaft 2; the user can adjust the position of the mounting wheel 3 or change the form of the mounting wheel 3 by this structure.

Further, the center of the mounting wheel 3 is provided with a boss 10, in this embodiment, the boss 10 is in a shape of a cylinder, and abuts against the limiting member 9, so as to increase the mechanical strength of the mounting wheel 3 and prolong the service life.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A novel speed reducing mechanism is characterized in that: the worm-gear transmission mechanism comprises an input shaft, an output shaft (2) and a bracket (11) for fixing the input shaft and the output shaft (2), wherein the input shaft is a worm (1) and is connected with a power source; the output shaft (2) is provided with a mounting wheel (3), a plurality of upright columns (6) are circumferentially distributed on a normal surface (7) of the mounting wheel (3), the upright columns (6) are protruded on the normal surface (7), and rotating wheels are arranged on the upright columns (6); the output shaft (2) is coupled with the worm (1) through a rotating wheel in the mounting wheel (3).

2. The novel speed reducing mechanism according to claim 1, wherein: the rotating wheel is a bearing (4), the upright post (6) is fixedly connected with an inner ring of the bearing (4), and the spiral groove of the worm (1) is a cam groove.

3. A novel speed reducing mechanism according to claim 1 or 2, wherein: a plurality of mounting grooves (5) are formed in the mounting wheel (3), the upright post (6) penetrates through the mounting grooves (5), and a fixing piece is arranged at the other end of the upright post.

4. The novel speed reducing mechanism according to claim 2, wherein: the bearing (4) is a roller bearing.

5. A novel speed reducing mechanism according to claim 1 or 2, wherein: the mounting wheel (3) is provided with a through hole (8) in the center, the output shaft (2) penetrates through the through hole (8) to be connected with the mounting wheel (3), and limiting pieces (9) are fixed on the output shafts (2) on two sides of the mounting wheel (3) and used for limiting the mounting wheel (3) on the output shafts (2).

6. The novel speed reducing mechanism according to claim 5, wherein: the mounting wheel is characterized in that threads are arranged on the output shafts (2) on two sides of the mounting wheel (3), the limiting part (9) is in a circular ring shape, threads matched with each other are arranged in the inner ring of the limiting part, and the limiting part is detachably fixed on the output shafts through the threads.

7. The novel speed reducing mechanism according to claim 5, wherein: the center of the mounting wheel (3) is also provided with a boss (10), and the boss (10) is abutted to the limiting part (9).