CN207178589U

CN207178589U - A kind of second-stage worm gear worm structure of adjustable in center distance

Info

Publication number: CN207178589U
Application number: CN201721242894.0U
Authority: CN
Inventors: 吴维奇
Original assignee: Wuxi Pioneer Science And Technology Co Ltd
Current assignee: Wuxi Pioneer Science And Technology Co Ltd
Priority date: 2017-09-26
Filing date: 2017-09-26
Publication date: 2018-04-03
Anticipated expiration: 2027-09-26

Abstract

A kind of second-stage worm gear worm structure of adjustable in center distance is the utility model is related to, is made up of the first order gear drive and second level gear drive engaged each other, the first order gear drive is connected by the output end of adapter sleeve and motor；The utility model is simple in construction, easy to use, each worm screw is adjustable relative to the centre-to-centre spacing of worm gear in the utility model, change the reference circle of worm and gears at different levels, realize the change of the worm gear number of teeth and number of threads, thus the gearratio of worm and gears at different levels is changed, structure without changing worm gear case, effectively realize the effect for flexibly changing worm-and-wheel gear transmission speed and driving torque.

Description

A kind of second-stage worm gear worm structure of adjustable in center distance

Technical field

It the utility model is related to mechanical transmission fields, more particularly to a kind of second-stage worm gear worm screw knot of adjustable in center distance Structure.

Background technology

At present, the centre-to-centre spacing in existing worm-and-wheel gear is fixed uncontrollable, its worm gear transmission ratio It is fixed, it can not flexibly change the transmission speed and driving torque of worm-and-wheel gear, can not meet customer need.

Utility model content

The applicant is directed to above-mentioned existing issue, has carried out Improvement, there is provided a kind of two level snail of adjustable in center distance Worm and gear structure, the regulation to worm and gear centre-to-centre spacing can be realized using the utility model, and go for not simultaneous interpretation The worm and gear of dynamic ratio, there is the advantages of flexibly changing worm-and-wheel gear transmission speed and driving torque.

Technical scheme is as follows used by the utility model：

The second-stage worm gear worm structure of a kind of adjustable in center distance, by the first order gear drive engaged each other and Secondary gear transmission mechanism is formed, and the first order gear drive is connected by the output end of adapter sleeve and motor；

The concrete structure of the first order gear drive is as follows：

Including one-level worm screw, the one-level worm screw engages each other with first-stage worm gear, is set in the periphery of the one-level worm screw One-level worm screw case；

The concrete structure of the second level gear drive is as follows：

Including second-stage worm, the second-stage worm engages each other with second-stage worm gear, the second-stage worm gear and second-stage worm gear axle Socket；In the periphery of the second-stage worm, second-stage worm case is set.

Its further technical scheme is：

The first-stage worm gear is arranged on one end that the second-stage worm stretches out second-stage worm case；

One end of second-stage worm case is stretched out in the second-stage worm, in the also affixed two level snail in the side of the second-stage worm case Bar case riser；The bottom of the second-stage worm case and second-stage worm bottom plate are affixed, in the second-stage worm case riser and two level Multiple long waist shaped holes are symmetrically opened up on worm screw bottom plate.

The beneficial effects of the utility model are as follows：

The utility model is simple in construction, easy to use, and each worm screw is adjustable relative to the centre-to-centre spacing of worm gear in the utility model, Change the reference circle of worm and gears at different levels, realize the change of the worm gear number of teeth and number of threads, thus change worm gears at different levels The gearratio of worm screw, the structure without changing worm gear case, effectively realizes and flexibly changes worm-and-wheel gear transmission speed With the effect of driving torque.

Brief description of the drawings

Fig. 1 is dimensional structure diagram I of the present utility model.

Fig. 2 is dimensional structure diagram II of the present utility model.

Wherein：1st, second-stage worm bottom plate；2nd, long waist shaped hole；3rd, one-level worm screw case；4th, one-level worm screw；5th, first-stage worm gear； 6th, second-stage worm case riser；7th, second-stage worm gear；8th, second-stage worm gear axle；9th, second-stage worm case；10th, second-stage worm；11st, driving electricity Machine.

Embodiment

Illustrate specific embodiment of the present utility model below.

As shown in Figure 1 and Figure 2, a kind of second-stage worm gear worm structure of adjustable in center distance is by the first order tooth that engages each other Wheel drive mechanism and second level gear drive are formed, and first order gear drive passes through adapter sleeve and motor 11 Output end connects；

The concrete structure of first order gear drive is as follows：

Including one-level worm screw 4, one-level worm screw 4 is engaged each other with first-stage worm gear 5, and one-level is set in the periphery of one-level worm screw 4 Worm screw case 3, first-stage worm gear 5 are arranged on one end that second-stage worm 10 stretches out second-stage worm case 9.

The concrete structure of second level gear drive is as follows：

Including second-stage worm 10, second-stage worm 10 engages each other with second-stage worm gear 7,8 sets of second-stage worm gear 7 and second-stage worm gear axle Connect；In the periphery of second-stage worm 10, second-stage worm case 9 is set.In the also affixed second-stage worm case in the side of above-mentioned second-stage worm case 9 Riser 6；The bottom of second-stage worm case 9 and second-stage worm bottom plate 1 are affixed, in second-stage worm case riser 6 and second-stage worm bottom Multiple long waist shaped holes 2 are symmetrically opened up on plate 1, above-mentioned second-stage worm case riser 6 passes through long waist shaped hole 2 and fixing bolt and one-level snail Bar case 3 is affixed, and above-mentioned second-stage worm case 9 is affixed by long waist shaped hole 2 and fixing bolt and second-stage worm bottom plate 1.

Specific work process of the present utility model is as follows：

Drive one-level worm screw 4 to rotate by adapter sleeve by motor 11, drive first-stage worm gear 5 to rotate by one-level worm screw 4, Because first-stage worm gear 5 is assemblied in second-stage worm 10, therefore second-stage worm 10 is servo-actuated, drives second-stage worm gear 7 and second-stage worm gear axle 8 Rotation.

When needing to change gearratio, corresponding worm gear or worm screw are installed respectively, can individually change first-stage worm gear 4th, the gearratio between first-stage worm gear 5 or second-stage worm gear 7, second-stage worm 10, after change, the centre-to-centre spacing of each worm and gear will adjust To new parameter, at this moment unclamp the bolt between second-stage worm bottom plate 1 and second-stage worm case 9, by second-stage worm case 9 adjust to Second-stage worm 10 and the correct engagement of second-stage worm gear 7, or the bolt between second-stage worm case riser 6 and one-level worm screw case 3 is unclamped, One-level worm screw case 3 is adjusted to one-level worm screw 4 and the correct engagement of first-stage worm gear 5, then in fastening bolt.

Above description is to explanation of the present utility model, is not the restriction to utility model, what the utility model was limited Scope is referring to claim, and in the case of without prejudice to basic structure of the present utility model, the utility model can make any shape The modification of formula.

Claims

A kind of 1. second-stage worm gear worm structure of adjustable in center distance, it is characterised in that：Passed by the first order gear engaged each other Motivation structure and second level gear drive are formed, and the first order gear drive passes through adapter sleeve and motor (11) Output end connection；

The concrete structure of the first order gear drive is as follows：

Including one-level worm screw (4), the one-level worm screw (4) is engaged each other with first-stage worm gear (5), in the one-level worm screw (4) Periphery sets one-level worm screw case (3)；

The concrete structure of the second level gear drive is as follows：

Including second-stage worm (10), the second-stage worm (10) is engaged each other with second-stage worm gear (7), the second-stage worm gear (7) with Second-stage worm gear axle (8) is socketed；In the periphery of the second-stage worm (10), second-stage worm case (9) is set.
A kind of 2. second-stage worm gear worm structure of adjustable in center distance as claimed in claim 1, it is characterised in that：The one-level Worm gear (5) is arranged on one end that the second-stage worm (10) stretches out second-stage worm case (9).
A kind of 3. second-stage worm gear worm structure of adjustable in center distance as claimed in claim 1, it is characterised in that：Described two Level worm screw (10) stretches out one end of second-stage worm case (9), in the side of the second-stage worm case (9), also affixed second-stage worm case is stood Plate (6)；The bottom of the second-stage worm case (9) and second-stage worm bottom plate (1) are affixed, in the second-stage worm case riser (6) And multiple long waist shaped holes (2) are symmetrically opened up on second-stage worm bottom plate (1).