CN219198013U

CN219198013U - Novel worm gear transmission mechanism

Info

Publication number: CN219198013U
Application number: CN202123000436.5U
Authority: CN
Inventors: 周建光; 何金刚; 赵守彪; 王新平
Original assignee: Zhengzhou Hi Tech Heavy Equipment Co ltd
Current assignee: Zhengzhou Hi Tech Heavy Equipment Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2023-06-16
Anticipated expiration: 2031-12-01

Abstract

The utility model belongs to the technical field of machining, and particularly discloses a novel worm and gear transmission mechanism which comprises a worm, wherein the worm comprises a main shaft and a pair of conical gears which are provided with spiral teeth and are connected with the main shaft through keys, small diameter ends of the conical gears are oppositely arranged, and the conical gears are meshed with a worm gear. The device can reduce the stress of each single tooth by increasing the number of teeth of the effective engagement between the worm gear and the worm, namely, the number of teeth of the worm in contact with the worm gear is increased, the service life of the worm gear and the worm is prolonged, and the transmission is more stable.

Description

Novel worm gear transmission mechanism

Technical Field

The utility model relates to the technical field of transmission, in particular to a novel worm and gear transmission mechanism.

Background

When the existing worm wheel and worm are meshed for transmission, the stress among meshed gear teeth is relatively concentrated, so that abrasion is serious, and the service life is low.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a novel worm and gear transmission mechanism so as to reduce abrasion of gear teeth, prolong the service life of the gear teeth and enable transmission to be more stable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the novel worm gear and worm transmission mechanism comprises a worm, wherein the worm comprises a main shaft and a pair of bevel gears which are provided with spiral teeth and are connected with the main shaft, the small diameter ends of the bevel gears are oppositely arranged, and the bevel gears are meshed with a worm gear.

Further, a position adjustment mechanism connected to the spindle is included for adjusting the distance between the pair of bevel gears.

Further, the position adjusting mechanism comprises a first lock nut and a second lock nut which are respectively positioned at two ends of the bevel gear, and external threads for being matched with the first lock nut and the second lock nut are arranged on the main shaft.

Further, spring pads are arranged between the bevel gear and the first locking nut and between the bevel gear and the second locking nut.

Further, the device also comprises a telescopic spring sleeved on the main shaft, and two ends of the telescopic spring are respectively abutted against a pair of second locking nuts.

Further, the bevel gear is connected with the main shaft through a spline.

The beneficial technical effects of the utility model are as follows:

compared with the prior art, the novel worm and gear transmission mechanism provided by the utility model has the advantages that the structure is distinctive, the number of teeth of effective engagement between the worm and gear is increased, the stress is shared, the stress of each single tooth can be reduced, namely, the number of teeth of the worm, which is contacted with the worm, is increased, the service life of the worm and gear is prolonged, and the transmission is more stable.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a front view structure of a novel worm gear transmission mechanism.

In the figure: 1. the main shaft, 2, first lock nut, 3, bevel gear, 4, second lock nut, 5, spline, 6, worm wheel.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1, a novel worm gear transmission mechanism as a preferred embodiment of the present utility model comprises a worm including a main shaft 1 and a pair of bevel gears 3 having helical teeth and keyed to the main shaft 1, the small diameter ends of the pair of bevel gears 3 being disposed opposite each other, and the pair of bevel gears 3 being engaged with a worm wheel 6.

When the novel worm and gear transmission mechanism provided by the utility model is applied, the number of teeth of effective meshing between the worm and the worm wheel 6 is increased, the stress is shared, the stress of each single tooth can be reduced, namely, the number of teeth of the worm, which is contacted with the worm wheel 6, is increased, the service life of the worm and the worm wheel 6 is prolonged, and the transmission is more stable.

On the basis of the above embodiment, for better technical effects, the device further comprises a position adjusting mechanism connected with the main shaft 1, wherein the position adjusting mechanism is used for adjusting the distance between the pair of conical gears 3, finely adjusting the positions of the conical gears 3 so as to enable the conical gears 3 to be meshed with the worm gear 6, and adjusting or eliminating the backlash between the meshed teeth of the worm gear 6 and the worm.

More specifically, after the bevel gear 3 is used for a long time, the position of the bevel gear 3 can be adjusted by the position adjusting mechanism, so that teeth at different positions on the bevel gear 3 are meshed with the worm wheel 6, and the service life of the worm is effectively prolonged.

In the above embodiment, the position adjusting mechanism includes the first lock nut 2 and the second lock nut 4 respectively located at two ends of the bevel gear 3, and the spindle 1 is provided with external threads for matching with the first lock nut 2 and the second lock nut 4, and the position of the bevel gear 3 is adjusted along the axial direction of the spindle 1 by screwing the first lock nut 2 and the second lock nut 4.

In actual production, spring pads are arranged between the bevel gear 3 and the first lock nut 2 and between the bevel gear 3 and the second lock nut 4 so as to achieve the fastening function and avoid the first lock nut 2 and the second lock nut 4 from slipping.

Preferably, the device further comprises a telescopic spring sleeved on the main shaft 1, two ends of the telescopic spring respectively collide with the pair of second locking nuts 4, and the second locking nuts 4 are prevented from loosening by the telescopic spring.

In the embodiment, the bevel gear 3 is connected with the main shaft 1 through the spline 5 to transmit larger torque, and the bevel gear has even stress, small stress concentration and long service life.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. 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 utility model. Thus, the present utility model 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 novel worm and gear transmission mechanism comprises a worm, and is characterized by comprising a main shaft and a pair of conical gears which are provided with spiral teeth and are connected with the main shaft, wherein the small diameter ends of the conical gears are oppositely arranged, and the conical gears are meshed with a worm wheel;

the device also comprises a position adjusting mechanism connected with the main shaft, wherein the position adjusting mechanism is used for adjusting the distance between the pair of bevel gears;

the position adjusting mechanism comprises a first locking nut and a second locking nut which are respectively positioned at two ends of the bevel gear, and external threads for being matched with the first locking nut and the second locking nut are arranged on the main shaft.

2. The novel worm and gear transmission mechanism according to claim 1, wherein spring pads are arranged between the bevel gear and the first lock nut and between the bevel gear and the second lock nut.

3. The novel worm and gear transmission mechanism according to claim 2, further comprising a telescopic spring sleeved on the main shaft, wherein two ends of the telescopic spring respectively abut against the pair of second locking nuts.

4. The novel worm gear mechanism as claimed in claim 1, wherein the bevel gear is splined to the spindle.