阅读说明：本技术 一种蜗轮蜗杆传动结构 (Worm gear transmission structure ) 是由 刘样 张宇 周涛 杨伟强 于 2021-02-08 设计创作，主要内容包括：本发明公开了一种蜗轮蜗杆传动结构,包括安装座、电机以及相配合的蜗轮和蜗杆,所述电机的输出端连接所述蜗杆的一端,所述蜗轮转动设于所述安装座上,所述电机活动设于所述安装座上,还包括弹性件、第一轴承和轴承座,第一轴承套设在所述蜗杆的另一端并固定在所述轴承座上,所述弹性件的一端连接所述安装座,所述弹性件的另一端连接所述轴承座以驱使所述蜗杆靠近所述蜗轮。在弹性件的作用下,蜗杆及电机可偏转一定角度,从而自动调节蜗轮蜗杆中心距,实现蜗轮蜗杆零啮合齿隙传动,有效地保证蜗轮蜗杆传动精度,而且由于蜗轮蜗杆中心距能自动调节,因此蜗轮蜗杆的加工精度要求能够得到降低,从而使得蜗轮蜗杆传动结构的制造成本减少。(The invention discloses a worm and gear transmission structure which comprises a mounting seat, a motor, a worm gear and a worm, wherein the worm gear and the worm are matched with each other, the output end of the motor is connected with one end of the worm, the worm gear is rotatably arranged on the mounting seat, the motor is movably arranged on the mounting seat, the worm and gear transmission structure further comprises an elastic piece, a first bearing and a bearing seat, the first bearing is sleeved at the other end of the worm and is fixed on the bearing seat, one end of the elastic piece is connected with the mounting seat, and the other end of the elastic piece is connected with the bearing seat so as to drive the worm to be close to the worm. Under the effect of elastic component, worm and motor can deflect certain angle to automatically regulated worm gear centre-to-centre spacing realizes the zero meshing tooth clearance transmission of worm gear, guarantees worm gear transmission precision effectively, because worm gear centre-to-centre spacing ability automatically regulated, therefore the machining precision requirement of worm gear can be reduced, thereby makes the manufacturing cost reduction of worm gear transmission structure.)

1. The utility model provides a worm gear transmission structure, includes mount pad, motor and matched with worm wheel and worm, the output of motor is connected the one end of worm, the worm wheel rotates to be located on the mount pad, its characterized in that: the motor activity is located on the mount pad, still include elastic component, first bearing and bearing frame, first bearing housing is established the other end of worm is fixed on the bearing frame, the one end of elastic component is connected the mount pad, the other end of elastic component is connected the bearing frame is in order to order about the worm is close to the worm wheel.

2. The worm-gear drive structure according to claim 1, characterized in that: still include the mounting bracket, motor fixed mounting be in on the mounting bracket, the mounting bracket with mount pad swing joint.

3. The worm-gear drive structure according to claim 2, characterized in that: the mounting bracket with the mount pad passes through screwed connection, be equipped with on the mount pad with screw matched with screw, be equipped with the confession on the mounting bracket the through-hole that the screw passed, the diameter of through-hole is greater than the diameter of the screw section of screw.

4. The worm-gear drive structure according to claim 1, characterized in that: the mounting seat is provided with a support column, and one end of the elastic piece, which is far away from the bearing seat, is connected with the support column.

5. The worm-gear drive structure according to claim 1, characterized in that: the elastic piece is a tension spring.

6. The worm-gear drive structure according to claim 1, characterized in that: still include axis of rotation, second bearing and split ring, the axis of rotation with worm wheel fixed connection, the inner circle cover of second bearing is established in the axis of rotation, the outer lane of second bearing is fixed on the mount pad, split ring card is held on the mount pad and is contradicted the terminal surface of the outer lane of second bearing.

7. The worm-gear drive structure according to claim 1, characterized in that: and the surface of the bearing seat is provided with an abutting plane abutting against the mounting seat.

8. The worm-gear drive structure according to claim 7, characterized in that: an oil film is arranged between the abutting plane and the mounting seat.

Technical Field

The invention relates to the technical field of transmission structures, in particular to a worm and gear transmission structure.

Background

When the transmission is designed, the worm and gear transmission is needed due to special requirements such as mechanism self-locking, large transmission ratio realization and the like, the worm and gear transmission structure is generally designed in a fixed center distance mode, the requirement on the processing precision of each structural part is high for realizing high transmission precision, the processing cost is high, and if the requirement on the processing precision is reduced, a tooth gap exists in the meshing state of the worm and gear, so that the transmission precision is reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the worm and gear transmission structure has high transmission precision and low processing cost.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a worm gear transmission structure, includes mount pad, motor and matched with worm wheel and worm, the output of motor is connected the one end of worm, the worm wheel rotates to be located on the mount pad, the motor activity is located on the mount pad, still include elastic component, first bearing and bearing frame, first bearing cover is established the other end of worm is fixed on the bearing frame, the one end of elastic component is connected the mount pad, the other end of elastic component is connected the bearing frame is in order to order about the worm is close to the worm wheel.

The invention has the beneficial effects that: under the effect of elastic component, worm and motor can deflect certain angle to automatically regulated worm gear centre-to-centre spacing realizes the zero meshing tooth clearance transmission of worm gear, guarantees worm gear transmission precision effectively, because worm gear centre-to-centre spacing ability automatically regulated, therefore the machining precision requirement of worm gear can be reduced, thereby makes the manufacturing cost reduction of worm gear transmission structure.

Drawings

Fig. 1 is a schematic structural diagram of an overall structure of a worm and gear transmission structure according to a first embodiment of the present invention;

fig. 2 is a plan view of the overall structure of the worm gear transmission structure according to the first embodiment of the present invention.

Description of reference numerals:

1. a mounting seat;

2. a motor;

3. a worm gear;

4. a worm;

5. an elastic member;

6. a bearing seat;

7. a mounting frame;

8. a screw;

9. a support pillar;

10. a second bearing;

11. and (4) opening a retainer ring.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 and 2, a worm and gear transmission structure includes a mounting base 1, a motor 2, a worm wheel 3 and a worm 4, the worm wheel 3 is rotatably disposed on the mounting base 1, the motor 2 is movably disposed on the mounting base 1, and the worm and gear transmission structure further includes an elastic member 5, a first bearing and a bearing base 6, the first bearing is sleeved on the other end of the worm 4 and fixed on the bearing base 6, one end of the elastic member 5 is connected to the mounting base 1, and the other end of the elastic member 5 is connected to the bearing base 6 to drive the worm 4 to approach the worm wheel 3.

From the above description, the beneficial effects of the present invention are: under the effect of elastic component 5, worm 4 and motor 2 can deflect certain angle to automatically regulated worm gear centre-to-centre spacing realizes the zero meshing tooth clearance transmission of worm gear, guarantees worm gear transmission precision effectively, and because worm gear centre-to-centre spacing ability automatically regulated, therefore the machining precision requirement of worm gear can obtain reducing, thereby makes the manufacturing cost reduction of worm gear transmission structure.

Further, still include mounting bracket 7, motor 2 fixed mounting be in on mounting bracket 7, mounting bracket 7 with mount pad 1 swing joint.

Further, the mounting bracket 7 with the mounting bracket 1 is connected through screw 8, be equipped with on the mounting bracket 1 with screw 8 matched with screw, be equipped with the confession on the mounting bracket 7 the through-hole that screw 8 passed, the diameter of through-hole is greater than the diameter of the screw section of screw 8.

As can be seen from the above description, the mounting bracket 7 can be slightly offset with respect to the mounting base 1.

Furthermore, a supporting column 9 is arranged on the mounting base 1, and one end, far away from the bearing seat 6, of the elastic part 5 is connected with the supporting column 9.

As can be seen from the above description, the supporting posts 9 are used to provide the attachment locations for the elastic members 5.

Further, the elastic member 5 is a tension spring.

As can be seen from the above description, the extension spring has wide source and can be directly purchased and obtained.

Further, still include axis of rotation, second bearing 10 and split ring 11, the axis of rotation with 3 fixed connection of worm wheel, the inner circle cover of second bearing 10 is established in the axis of rotation, the outer lane of second bearing 10 is fixed on mount pad 1, split ring 11 card is held on mount pad 1 and is contradicted the terminal surface of the outer lane of second bearing 10.

As is apparent from the above description, the worm 4 can smoothly rotate with respect to the mount 1.

Further, the surface of the bearing seat 6 is provided with an abutting plane abutting against the mounting seat 1.

From the above description, the existence of the interference plane can effectively avoid the unexpected rotation of the bearing seat 6 when the worm 4 rotates, which is beneficial to ensuring the structural stability of the worm and gear transmission structure.

Further, an oil film is arranged between the abutting plane and the mounting seat 1.

As can be seen from the above description, the oil film is provided to reduce the friction between the bearing seat 6 and the mounting seat 1, so that the elastic member 5 can more smoothly drive the worm 4 to shift toward the worm wheel 3. Meanwhile, the existence of the oil film can improve the abrasion condition of the bearing seat 6, and the service life of the worm and gear transmission structure is prolonged.

Example one

Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: the utility model provides a worm gear transmission structure, includes mount pad 1, motor 2 and matched with worm wheel 3 and worm 4, the output of motor 2 is connected the one end of worm 4, worm wheel 3 rotates to be located on the mount pad 1, motor 2 activity is located on the mount pad 1, still include elastic component 5, first bearing and bearing frame 6, and first bearing cover is established the other end of worm 4 is fixed on the bearing frame 6, the one end of elastic component 5 is connected mount pad 1, the other end of elastic component 5 is connected bearing frame 6 is in order to order about worm 4 is close to worm wheel 3. Optionally, the elastic member 5 is a tension spring.

In this embodiment, the worm gear transmission structure further includes an installation frame 7, the motor 2 is fixedly installed on the installation frame 7, and the installation frame 7 is movably connected with the installation base 1. Specifically, mounting bracket 7 with mounting bracket 1 passes through the screw 8 and connects, be equipped with on mounting bracket 1 with 8 matched with screws's screw, be equipped with the confession on mounting bracket 7 the through-hole that screw 8 passed, the diameter of through-hole is greater than the diameter of the screw section of screw 8. More specifically, the number of screws 8 is four.

For the convenience of connecting the elastic piece 5 with the mounting seat 1, a supporting column 9 is arranged on the mounting seat 1, and one end of the elastic piece 5, which is far away from the bearing seat 6, is connected with the supporting column 9. Optionally, the supporting column 9 is in threaded connection with the mounting base 1.

Still include axis of rotation, second bearing 10 and split ring 11, the axis of rotation with 3 fixed connection of worm wheel, the inner circle cover of second bearing 10 is established in the axis of rotation, the outer lane of second bearing 10 is fixed on the mount pad 1, split ring 11 card is held mount pad 1 is last and is contradicted the terminal surface of the outer lane of second bearing 10 is in order to prevent second bearing 10 breaks away from mount pad 1. Optionally, the rotating shaft and the worm gear are of an integrated structure formed by processing a raw material.

In order to ensure the working stability of the worm gear transmission structure, the surface of the bearing seat 6 is provided with a conflict plane conflicting with the mounting seat 1. Preferably, an oil film is arranged between the abutting plane and the mounting seat 1, and optionally, the oil film is formed by lubricating oil.

In conclusion, the worm and gear transmission structure provided by the invention has the advantages of low manufacturing cost, high transmission precision and long service life.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.