CN214946113U

CN214946113U - Reduction gear box

Info

Publication number: CN214946113U
Application number: CN202120116280.8U
Authority: CN
Inventors: 张亦标; 董吉初
Original assignee: Yancheng Jinzhou Machinery Manufacture Co ltd
Current assignee: Yancheng Jinzhou Machinery Manufacture Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-11-30
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses a reduction gear box, including the gear box body, this internal input shaft, first speed reduction axle, second speed reduction axle, output shaft of being equipped with of gear box, with the cover is equipped with the worm on the input shaft, the epaxial worm wheel that is equipped with of first speed reduction, the meshing of worm and worm wheel mutually, the epaxial first drive gear, the second drive gear of still being equipped with of first speed reduction, the epaxial first driven gear, the second driven gear and the third drive gear of being equipped with of second speed reduction, be equipped with output gear on the output shaft, first drive gear, second drive gear are skewed tooth cylindrical gear to skewed tooth inclination each other becomes the mirror image. Has the advantages that: the worm wheel and the worm are favorable for realizing the self-locking function of the gear box, the output shaft end is prevented from reversely driving the input shaft to rotate, the first speed reducing shaft and the second speed reducing shaft are arranged to realize multi-stage speed reduction, and the oblique angle roller bearing is favorable for preventing the shaft body from axially moving.

Description

Reduction gear box

Technical Field

The utility model relates to a gear box technical field specifically indicates a reduction gear box.

Background

The existing reduction gear box is an independent transmission component consisting of various gears enclosed in a rigid shell and inside the rigid shell, and is commonly used as a reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery.

The gear speed reducer achieves the purpose of reducing speed by utilizing the transmission of various stages of gears, the speed reducer is composed of various stages of gear pairs, for example, a small gear drives a large gear to achieve the purpose of reducing speed to a certain extent, the rotating speed can be greatly reduced by adopting a multi-stage structure, the speed reduction gear box is generally used for transmission equipment with low rotating speed and large torque, and the ratio of the number of teeth of the large gear and the small gear of the speed reduction gear box is the transmission ratio. With the continuous development of society, more and more enterprises use reduction gear boxes. However, the existing reduction gear box has some defects, firstly, the running noise is larger; secondly, the gears are easily worn due to insufficient lubrication between the gears, and thus a reduction gear box is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a simple structure, the practicality is strong, a reduction gear box that excellent in use effect.

In order to solve the technical problem, the utility model provides a technical scheme does: a reduction gear box comprises a gear box body, an input shaft, a first reduction shaft, a second reduction shaft and an output shaft are arranged in the gear box body, a worm is sleeved on the input shaft, a worm wheel is arranged on the first reduction shaft and meshed with the worm wheel, a first driving gear and a second driving gear are further arranged on the first reduction shaft, a first driven gear, a second driven gear and a third driving gear are arranged on the second reduction shaft, an output gear is arranged on the output shaft, the first driving gear and the second driving gear are helical cylindrical gears, the oblique angles of the helical teeth are mirror images of each other, the first driven gear and the second driven gear are helical cylindrical gears, the oblique angles of the helical teeth are mirror images of each other, the first driving gear is meshed with the first driven gear, the second driving gear is meshed with the second driven gear, the third driving gear and the output gear are both straight-tooth cylindrical gears, and the third driving gear is meshed with the output gear.

Furthermore, the first speed reduction shaft, the second speed reduction shaft and the output shaft are all arranged in parallel, the first speed reduction shaft, the second speed reduction shaft and the output shaft are all perpendicular to the input shaft, and one ends of the input shaft and one ends of the output shaft penetrate through and extend out of the gear box body.

Further, the third driving gear is arranged between the first driven gear and the second driven gear.

Furthermore, oblique angle roller bearings are arranged at the positions where the two ends of the input shaft, the first speed reducing shaft, the second speed reducing shaft and the output shaft are rotatably connected with the gear box body.

Furthermore, an oil pool is arranged below the interior of the gear box body, and an oil filling port is formed in the end face of the upper portion of the gear box body.

Furthermore, the diameters of the first driving gear and the second driving gear are the same, the diameters of the first driven gear and the second driven gear are the same, and the diameters of the first driven gear and the second driven gear are both larger than the diameters of the first driving gear and the second driving gear.

Furthermore, the diameters of the first driven gear, the second driven gear and the output gear are all larger than the diameter of the third driving gear,

compared with the prior art, the utility model the advantage lie in: the utility model discloses reduction gear is equipped with worm wheel and worm, is favorable to realizing the self-locking function of gear box, prevents that the reverse drive input shaft of output shaft end from rotating, is equipped with first reduction shaft, second reduction shaft and can realizes multistage speed reduction, is equipped with oblique angle roller bearing and is favorable to preventing that the axis body from taking place axial displacement.

Drawings

Fig. 1 is a schematic structural diagram of a reduction gear box of the present invention.

Fig. 2 is a schematic side view of the reduction gear box of the present invention.

As shown in the figure: 1. the gearbox comprises a gearbox body, 2, an input shaft, 3, a first speed reducing shaft, 4, a second speed reducing shaft, 5, an output shaft, 6, a worm, 7, a worm wheel, 8, a first driving gear, 9, a second driving gear, 10, a first driven gear, 11, a second driven gear, 12, a third driving gear, 13, an output gear, 14, a bevel roller bearing, 15, an oil pool, 16 and an oil filling port.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

A reduction gear box comprises a gear box body 1, an input shaft 2, a first reduction shaft 3, a second reduction shaft 4 and an output shaft 5 are arranged in the gear box body 1, a worm 6 is sleeved on the input shaft 2, a worm wheel 7 is arranged on the first reduction shaft 3, the worm 6 is meshed with the worm wheel 7, a first driving gear 8 and a second driving gear 9 are further arranged on the first reduction shaft 3, a first driven gear 10, a second driven gear 11 and a third driving gear 12 are arranged on the second reduction shaft 4, an output gear 13 is arranged on the output shaft 5, the first driving gear 8 and the second driving gear 9 are helical gears, oblique angles of the helical gears are mirror images of each other, the first driven gear 10 and the second driven gear 11 are helical gears, oblique angles of the helical gears are mirror images of each other, the first driving gear 8 is meshed with the first driven gear 10, the second driving gear 9 is meshed with a second driven gear, the third driving gear 12 and the output gear 13 are both straight toothed spur gears, and the third driving gear 12 is meshed with the output gear 13.

The first speed reduction shaft 3, the second speed reduction shaft 4 and the output shaft 5 are all arranged in parallel, the first speed reduction shaft 3, the second speed reduction shaft 4 and the output shaft 5 are all perpendicular to the input shaft 2, and one ends of the input shaft 2 and one end of the output shaft 5 penetrate through and extend out of the gear box body 1.

The third driving gear 12 is disposed between the first driven gear 10 and the second driven gear 11.

Oblique angle roller bearings 14 are arranged at the rotary connection parts of the two ends of the input shaft 2, the first speed reducing shaft 3, the second speed reducing shaft 4 and the output shaft 5 and the gear box body 1.

An oil pool 15 is arranged below the interior of the gear box body 1, and an oil filling port 16 is formed in the end face of the upper portion of the gear box body.

The diameters of the first driving gear and the second driving gear 9 are the same, the diameters of the first driven gear 10 and the second driven gear 11 are the same, and the diameters of the first driven gear 10 and the second driven gear 11 are both larger than the diameters of the first driving gear 8 and the second driving gear 9.

The diameters of the first driven gear 10, the second driven gear 11 and the output gear 13 are all larger than the diameter of the third driving gear 12,

the working principle is as follows: during the actual use, add lubricating oil from oil filler 16, lubricating oil is full of oil bath 15, help providing lubrication for the gear revolve time, reduce the running noise, furtherly, worm 6 on the input shaft 2 meshes with worm wheel 7 on the first reduction shaft 3 mutually, its worm gear can provide reverse auto-lock's function, prevent that output shaft 5 is reverse to the transmission of input shaft 2, furtherly, first drive gear 8, second drive gear 9 adopt skewed tooth cylindrical gear and each other become the mirror image setting, simultaneously, the diameter of two gears is also the same, be used for offsetting the axial displacement's of axis body power, be equipped with the same gear at third drive gear 12 both sides, can make third drive gear 12 operation more steady, the probability that the noise reduction produced, improve transmission efficiency simultaneously.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A reduction gearbox, comprising a gearbox body (1), characterized in that: an input shaft (2), a first speed reducing shaft (3), a second speed reducing shaft (4) and an output shaft (5) are arranged in the gear box body (1), a worm (6) is sleeved on the input shaft (2), a worm wheel (7) is arranged on the first speed reducing shaft (3), the worm (6) is meshed with the worm wheel (7), a first driving gear (8) and a second driving gear (9) are further arranged on the first speed reducing shaft (3), a first driven gear (10), a second driven gear (11) and a third driving gear (12) are arranged on the second speed reducing shaft (4), an output gear (13) is arranged on the output shaft (5), the first driving gear (8) and the second driving gear (9) are helical cylindrical gears, the oblique angles of the helical gears are mirror images, and the first driven gear (10) and the second driven gear (11) are helical cylindrical gears, and the inclined angles of the helical teeth are mirror images, the first driving gear (8) is meshed with the first driven gear (10), the second driving gear (9) is meshed with the second driven gear, the third driving gear (12) and the output gear (13) are both straight toothed spur gears, and the third driving gear (12) is meshed with the output gear (13).

2. A reduction gearbox according to claim 1, wherein: the gear box is characterized in that the first speed reducing shaft (3), the second speed reducing shaft (4) and the output shaft (5) are arranged in parallel, the first speed reducing shaft (3), the second speed reducing shaft (4) and the output shaft (5) are perpendicular to the input shaft (2), and one ends of the input shaft (2) and the output shaft (5) penetrate through and extend out of the gear box body (1).

3. A reduction gearbox according to claim 1, wherein: the third driving gear (12) is arranged between the first driven gear (10) and the second driven gear (11).

4. A reduction gearbox according to claim 1, wherein: the bevel roller bearings (14) are arranged at the rotary connection parts of the two ends of the input shaft (2), the first speed reducing shaft (3), the second speed reducing shaft (4) and the output shaft (5) and the gear box body (1).

5. A reduction gearbox according to claim 1, wherein: an oil pool (15) is arranged below the interior of the gear box body (1), and an oil filling port (16) is formed in the end face of the upper portion of the gear box body.

6. A reduction gearbox according to claim 1, wherein: the diameters of the first driving gear and the second driving gear (9) are the same, the diameters of the first driven gear (10) and the second driven gear (11) are the same, and the diameters of the first driven gear (10) and the second driven gear (11) are larger than the diameters of the first driving gear (8) and the second driving gear (9).

7. The reduction gearbox of claim 6, wherein: the diameters of the first driven gear (10), the second driven gear (11) and the output gear (13) are all larger than the diameter of the third driving gear (12).