CN218510097U

CN218510097U - Reduction gear box adopting straight gear and worm for matching

Info

Publication number: CN218510097U
Application number: CN202222038267.2U
Authority: CN
Inventors: 白云雷
Original assignee: Shenzhen Yateng Motor Co ltd
Current assignee: Shenzhen Yateng Motor Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-02-21
Anticipated expiration: 2032-08-03

Abstract

The utility model provides an adopt straight-teeth gear and worm complex reduction gear box belongs to gear reduction technical field. The utility model discloses a power take off subassembly, reduction gear subassembly, driving motor and box, power take off subassembly and reduction gear subassembly are fixed to be set up in the box, and the power take off subassembly is connected with the meshing of reduction gear subassembly, and driving motor is equipped with the motor shaft, and the motor shaft is equipped with fixed connection's worm, and in the worm stretched into the box, the reduction gear subassembly included one-level reducing gear, and one-level reducing gear is the straight-teeth gear, and the worm meshes with one-level reducing gear is perpendicular to be connected. The utility model has the advantages that: the transmission efficiency is improved, the self-locking function during large lead angles is realized, the heating degree of the worm is greatly reduced, the stability of the reduction gear box is improved, and the service life of the motor is prolonged.

Description

Reduction gear box adopting straight gear and worm for matching

Technical Field

The utility model relates to a speed reduction gear technical field, concretely relates to adopt straight-teeth gear and worm complex reduction gear box.

Background

The speed reduction gear box achieves the purpose of speed reduction by utilizing the transmission of gears at all stages. The reduction gear box is generally used for transmission equipment with low rotating speed and high torque, and the ratio of the number of teeth of a large gear and a small gear of the reduction gear box is the transmission ratio. With the continuous development of society, more and more enterprises use reduction gear boxes.

At present, a conventional worm reduction gearbox with self-locking generally adopts a worm and a helical gear to be matched, and the worm has a small lead angle, so that the transmission efficiency is low and the heating is serious; however, after the lead angle is increased, the efficiency of the worm and the helical gear is improved, but the worm and the helical gear cannot be self-locked, and once the lead angle exceeds 7 degrees, the self-locking function is basically lost.

SUMMERY OF THE UTILITY MODEL

For solving the problem among the prior art, the utility model provides an adopt straight-teeth gear and worm complex reduction gear box, through set up one-level reduction gear and worm cooperation in reduction gear assembly, one-level reduction gear is the straight-teeth gear, can increase the helical pitch angle of worm, and the transmission efficiency is improved, self-locking function when big helical pitch angle has been realized, the worm degree of generating heat has been reduced by a wide margin, reduction gear box's stability has been improved, the life of motor has been improved, it is little with helical gear complex reduction gear box worm helical pitch angle among the prior art to have solved, transmission efficiency is lower, it is serious to generate heat, the big problem that can not the auto-lock of worm helical pitch angle.

The utility model provides a pair of adopt straight-teeth gear and worm complex reduction gear box, including power take off subassembly, reduction gear subassembly, driving motor and box, the power take off subassembly with the reduction gear subassembly is fixed set up in the box, the power take off subassembly with the reduction gear subassembly meshing is connected, driving motor is equipped with the motor shaft, the motor shaft is equipped with fixed connection's worm, the worm stretches into in the box, the reduction gear subassembly includes one-level reduction gear, one-level reduction gear is the straight-teeth gear, the worm with one-level reduction gear meshes the connection perpendicularly, driving motor can drive the worm drives the reduction gear subassembly and then drives the motion of power take off subassembly.

The utility model discloses make further improvement, the helical pitch angle of worm is more than or equal to 10, the worm with one-level reduction gear department of meeting is the point contact.

The utility model discloses do further improvement, power take-off subassembly includes power output shaft and output gear, power output shaft with output gear fixed connection, output gear with the reduction gear subassembly meshing is connected, stretch out on power output shaft's top the box.

The utility model discloses do further improvement, reduction gear assembly still includes second grade pair reduction gear, second grade pair reduction gear respectively with one-level reduction gear output gear meshing is connected.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides an adopt straight-teeth gear and worm complex reduction gear box, through set up one-level reduction gear and worm cooperation in reduction gear assembly, one-level reduction gear is the straight-teeth gear, can increase the helical pitch angle of worm, can reach 10 at the utmost, and transmission efficiency has been improved, self-locking function when having realized big helical pitch angle, the worm degree of generating heat has been reduced by a wide margin, the life problem that the worm leads to that generates heat has effectively been reduced, reduction gear box's stability has been improved, the life of motor has been improved, it is little with helical gear complex reduction gear box worm helical pitch angle to have solved among the prior art, transmission efficiency is lower, it is serious to generate heat, the big problem that can not the auto-lock in worm helical pitch angle. And the utility model discloses replace traditional helical gear with one-level speed reduction spur gear, reduced mould cost and manufacturing cost.

Drawings

In order to more clearly illustrate the present application or prior art solutions, a brief description of the drawings needed for the embodiments or prior art descriptions is provided below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a top view structural diagram of a reduction gear box adopting a straight gear and a worm in cooperation with the present invention;

FIG. 2 is a structural diagram of a reduction gear box adopting a straight gear and a worm to be matched with each other;

fig. 3 is a sectional view of the reduction gear box with spur gear and worm in cooperation.

In the figure, 1-power output component, 11-power output shaft, 12-output gear, 2-reduction gear component, 21-first-level reduction gear, 22-second-level duplex reduction gear, 3-driving motor, 31-motor shaft, 32-worm and 4-box body.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-2, the utility model provides an adopt straight-teeth gear and worm complex reduction gear, including power take off subassembly 1, reduction gear assembly 2, driving motor 3 and box 4, power take off subassembly 1 and reduction gear assembly 2 are fixed to be set up in box 4, power take off subassembly 1 is connected with 2 meshing of reduction gear assembly, driving motor 3 is equipped with motor shaft 31, motor shaft 31 is equipped with fixed connection's worm 32, worm 32 stretches into in the box 4, reduction gear assembly 2 includes one-level reduction gear 21, one-level reduction gear 21 is the straight-teeth gear, worm 32 is connected with the perpendicular meshing of one-level reduction gear 21, worm 31's helical pitch angle is more than or equal to 10, worm 31 and one-level reduction gear 21 department of meeting are the point contact, power take off subassembly 1 includes power take off shaft 11 and output gear 12, power take off shaft 11 and output gear 12 fixed connection, output gear 12 is connected with 2 meshing of reduction gear assembly, box 4 is stretched out on the top of power take off shaft 11, reduction gear assembly 2 still includes second grade duplicate reduction gear 22, second grade duplicate reduction gear 22 respectively with one-level reduction gear 21, output gear 12 meshes the connection.

In the embodiment, the driving motor works, the motor shaft rotates to drive the worm to rotate, the worm is matched with the first-stage reduction gear, the helical gear of the worm is in contact with the groove between the first-stage reduction gear, the helical gear of the worm is not in surface contact or line contact, the contact place is only a single point, and the first-stage reduction gear rotates under stress to drive the second-stage duplex reduction gear to rotate so as to drive the output gear and the power output shaft to rotate. The worm is matched with the straight gear, the lead angle of the worm 31 is larger than or equal to 10 degrees, the transmission efficiency is greatly improved, and the heating degree of the worm in the working process can be greatly reduced by contacting with the straight gear. The self-locking means that the worm can drive the first-level reduction gear to rotate, and the first-level reduction gear cannot reversely drive the worm to rotate to damage the motor.

By last, the utility model provides an adopt straight-teeth gear and worm complex reduction gear box, through set up one-level reduction gear and worm cooperation in reduction gear assembly, one-level reduction gear is the straight-teeth gear, can increase the helical pitch angle of worm, can reach 10 at the utmost, and improved transmission efficiency, self-locking function when big helical pitch angle has been realized, the worm degree of generating heat has been reduced by a wide margin, effectively reduced the life problem that the worm generates heat and leads to, reduction gear box's stability has been improved, the life of motor has been improved, it is little with helical gear complex reduction gear box worm helical pitch angle among the prior art to have solved, transmission efficiency is lower, it is serious to generate heat, the big problem that can not the auto-lock of worm helical pitch angle. And the utility model discloses replace traditional helical gear with one-level speed reduction straight-teeth gear, reduced mould cost and manufacturing cost.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides an adopt straight-teeth gear and worm complex reduction gear, its characterized in that: including power take off subassembly, reduction gear subassembly, driving motor and box, power take off subassembly with reduction gear subassembly is fixed set up in the box, power take off subassembly with reduction gear subassembly meshing is connected, driving motor is equipped with the motor shaft, the motor shaft is equipped with fixed connection's worm, the worm stretches into in the box, reduction gear subassembly includes one-level reduction gear, one-level reduction gear is the straight-teeth gear, the worm with the perpendicular meshing of one-level reduction gear is connected, driving motor can drive the worm drives reduction gear subassembly and then drive the motion of power take off subassembly.

2. The reduction gear box using a spur gear and a worm in cooperation according to claim 1, wherein: the lead angle of the worm is more than or equal to 10 degrees, and the joint of the worm and the primary reduction gear is point contact.

3. The reduction gear box using a spur gear and a worm in cooperation according to claim 2, wherein: the power output assembly comprises a power output shaft and an output gear, the power output shaft is fixedly connected with the output gear, the output gear is meshed with the reduction gear assembly, and the top end of the power output shaft extends out of the box body.

4. The reduction gearbox using spur gears in cooperation with a worm as set forth in claim 3, wherein: the reduction gear assembly further comprises a secondary duplex reduction gear, and the secondary duplex reduction gear is respectively meshed and connected with the primary reduction gear and the output gear.