CN110953314A

CN110953314A - Multi-tooth meshing speed change mechanism

Info

Publication number: CN110953314A
Application number: CN201911337480.XA
Authority: CN
Inventors: 宋利民; 王伟东; 李良燕; 李吉伟; 姜宏奎; 丁昊; 王延忠; 任少英; 王建军; 巩浩; 曹黎萍
Original assignee: SHANDONG LIUHANG SPEED REDUCER CO LTD
Current assignee: SHANDONG LIUHANG SPEED REDUCER CO LTD
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-04-03

Abstract

The invention relates to a multi-tooth meshing speed change mechanism, which belongs to the technical field of transmission equipment. The present invention solves the problem of the existing reducer. The invention comprises: an input shaft; an output shaft serving as an output end; a ring plate, which is rotatably connected with the input shaft, and an inner gear ring is arranged on the ring plate; an output gear meshes with the ring gear with multiple teeth; the output The shaft is fixedly connected to the output gear, the input shaft is eccentrically connected to the ring plate, and the multi-tooth meshing of the output gear and the ring gear is adapted; the rotation of the input shaft is converted into the plane motion of the ring plate , the inner gear on the ring plate then transmits the motion deceleration to the output gear, and realizes the motion transmission through the output shaft. The ring plate is also provided with a shaft II, the shaft II is eccentrically connected to the ring plate in an eccentric rotation, and the shaft II and the input shaft are symmetrically arranged on both sides of the ring gear.

Description

Multi-tooth meshing speed change mechanism

Technical Field

The invention relates to a multi-tooth meshing speed change mechanism, and belongs to the technical field of speed reducers.

Background

The large-scale speed reducer is indispensable in the field of transmission equipment such as building materials, metallurgy, mining plants and the like as a power transmission device for connecting a power source and an actuating mechanism, has the characteristics of large input power, high output torque and severe working environment, and the transmission mechanism commonly applied to the existing speed reducer is a parallel shaft, but has the problems of overlarge volume, large transmission noise and the like. The transmission gear mechanism which has high bearing capacity, low running noise, small volume, high reliability, difficult tooth breakage and flexible arrangement structure is required to be designed and developed to meet the requirements of the field on the speed reducer.

Disclosure of Invention

The invention aims to overcome the defects of the transmission of the existing speed reducer, provides a multi-tooth meshing speed change mechanism which is simple in structure and reasonable in design, and drives a ring plate to move through an input shaft so as to drive an output gear to transmit, and the output gear transmits the rotation through an output shaft.

The invention is realized by adopting the following technical scheme:

a multi-tooth intermeshing speed change mechanism comprising:

an input shaft;

an output shaft as an output end;

the annular plate is rotationally connected with the input shaft, and an inner gear ring is arranged on the annular plate;

an output gear provided on the output shaft and engaged with the ring gear;

the input shaft is connected with the annular plate in an eccentric rotating mode, a shaft II is further arranged on the annular plate and connected with the annular plate in an eccentric rotating mode, and the shaft II, the input shaft and the output shaft are arranged in parallel.

The rotation of the input shaft is converted into the planar motion of the ring plate, the inner gear ring on the ring plate transmits the motion to the output gear in a speed reducing manner, and the motion transmission is realized through the output shaft.

Preferably, the inner gear ring of the ring plate is meshed with the output gear in a multi-tooth manner.

The ring gear and the output gear on the ring plate are designed to be meshed in a multi-tooth mode, and the number of meshed teeth can reach more than 10, so that the bearing capacity of the gear box is greatly improved, and the operation is more stable; the tooth root of the tooth profile is thick, so that the tooth profile has better bending resistance and can adapt to various complex and severe working conditions. The method adopts the principle that arcs of addendum circle intersection points and pitch circle intersection points of an output gear and a gear ring are used as designed meshing lines of an internal gear, and a conjugate equation about the corresponding relation between the meshing lines and conjugate tooth profile curves of the output gear and the gear ring is established through the plane meshing principle; constructing a conjugate tooth profile curve meeting an arc meshing line according to a conjugate equation, wherein the conjugate tooth profile curve is an output gear tooth top tooth profile curve and a gear ring tooth top tooth profile curve; constructing a tooth root tooth profile conjugated with the tooth top tooth profile curve by using a conjugation principle, and modifying the tooth root tooth profile of the inner gear; designing a transition curve between tooth roots and a tooth root circle of the gear teeth of the output gear and the gear ring, determining the tangential direction of a tooth root tooth profile curve of the gear teeth at an endpoint, constructing an arc transition curve tangent to the tooth root circle and the tooth root tooth profile curve at the endpoint, and finally designing a multi-tooth meshed tooth profile structure through the curve.

Preferably, the shaft II extends out of the ring plate and can be used as a power input end. The input shaft and the shaft II can be independently used as power input ends, and can also be used as power input of the input ends at the same time.

Preferably, two or more ring plates are arranged, the ring plates are connected in series through an input shaft, a shaft II and an output shaft, each group of ring plates is provided with a gear ring, the gear rings are meshed with output gears on the inner sides of the gear rings in a multi-tooth manner, and the output gears are connected in series on the output shafts; and the ring plate and the output gear which are connected in series in each group are arranged in parallel.

Compared with the traditional involute transmission mechanism, the transmission mechanism has smaller volume under the condition of the same bearing capacity. But this novel meshing modularization tandem mechanism can carry out multiunit crown plate series connection according to the demand and use, bigger promotion application and using value.

Preferably, the input shaft is sleeved with a first eccentric sleeve, and the first eccentric sleeve is rotatably connected with the annular plate through a first eccentric sleeve bearing;

and the shaft II is sleeved with a second eccentric sleeve, and the second eccentric sleeve is rotatably connected with the annular plate through a second eccentric sleeve bearing.

Preferably, the input shaft is sleeved with a first eccentric sleeve bearing, and the first eccentric sleeve bearing is rotatably connected with the annular plate; and a second eccentric sleeve bearing is sleeved on the shaft II and is rotationally connected with the annular plate.

Preferably, the part of the input shaft connected with the annular plate is eccentrically arranged; and the part of the shaft II connected with the annular plate is eccentrically arranged.

Preferably, the ring gear of the ring plates in series meshes with the output gear in series at any angle. When in series connection, the gear ring and the output gear can be kneaded at different angles, and the gear ring and the output gear of each group of ring plates form an angle difference theta between the phases, wherein the typical angle difference is 0 degree, 60 degrees, 90 degrees, 120 degrees, 180 degrees and the like.

The invention has the beneficial effects that:

(1) according to the multi-tooth-meshing speed change mechanism, the input shaft is matched with the rotation of the shaft II to be converted into planar motion of the ring plate, the inner gear ring on the ring plate transmits the motion speed reduction to the output gear, the motion transmission is realized through the output shaft, the gear transmission is carried out by adopting a novel structure, the large reduction ratio transmission of a single-stage gear can be realized, and the reduction ratio can reach 11-100.

(2) According to the multi-tooth meshing speed change mechanism, the output gear and the gear ring are meshed by adopting the multi-tooth gear, and the number of the meshed teeth can reach more than 10.

(3) The multi-tooth meshing speed change mechanism adopts a large-superposition tooth shape design, and the number of meshing teeth reaches more than 10. Compared with the traditional involute transmission structure, the transmission mechanism has higher bearing capacity under the condition of the same volume; compared with the traditional involute transmission mechanism, the transmission mechanism has smaller volume under the condition of the same bearing capacity.

(4) According to the multi-tooth meshing speed change mechanism, the ring plates and the output gear are connected in series through the input shaft, the shaft II and the output shaft, multiple groups of ring plates can be connected in series according to requirements, the application field and the application value are improved greatly, in series connection, the gear rings and the output gear can be meshed at different angles, an angle difference theta is formed between the phase positions of the gear rings and the output gear of each group of ring plates, typical angle differences are 0 degree, 60 degrees, 90 degrees, 120 degrees, 180 degrees and the like, the transmission stability can be further improved, the output gear and the gear rings can be meshed at more points in transmission after series connection, and therefore power transmission and transmission stability are improved.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of a series two-bank arrangement of an embodiment of the present invention;

FIG. 3 is a perspective view of a series three-bank arrangement of an embodiment of the present invention;

FIG. 4 is a schematic diagram of an embodiment of the present invention;

FIG. 5 is a phase arrangement of two sets in series according to an embodiment of the present invention;

in the figure: 1. an input shaft; 2. a first eccentric sleeve; 3. a first eccentric sleeve bearing; 4. a ring plate; 5. an output gear; 6. an output shaft; 7. a second eccentric sleeve bearing; 8. a second eccentric sleeve; 9. and a shaft II.

Detailed Description

The invention will be further explained with reference to the drawings.

Example 1

As shown in fig. 1 to 5, a multi-tooth meshing transmission mechanism according to the present invention includes:

an input shaft 1;

an output shaft 6 as an output end;

the annular plate 4 is rotationally connected with the input shaft 1, and an inner gear ring is arranged on the annular plate 4;

an output gear 5 fixed to the output shaft 6 and engaged with the ring gear;

the input shaft 1 and the annular plate 4 are in eccentric rotary connection, the annular plate 4 is further provided with a shaft II 9, the shaft II 9 and the annular plate 4 are in eccentric rotary connection, and the shaft II 9, the input shaft 1 and the output shaft 6 are arranged in parallel.

The inner gear ring of the ring plate 4 is meshed with the output gear 5 in a multi-tooth manner.

The shaft II 9 extends out of the ring plate 4 and can be used as a power input end.

As shown in fig. 4, the input shaft 1, the first eccentric sleeve 2, the ring plate 4, the shaft ii 9 and the second eccentric sleeve 8 form a parallelogram crank link mechanism, and the input shaft 1 or the shaft ii 9 is driven to provide input power for the mechanism, or the input shaft 1 and the shaft ii 9 are driven simultaneously to provide input power, so as to drive the ring plate 4 and the output gear 5 to perform meshing motion, so as to provide power for the output gear 5 and drive the output shaft 6 to rotate and output.

Two or more ring plates 4 are arranged, the ring plates 4 are connected in series through an input shaft 1, a shaft II 9 and an output shaft 6, each group of ring plates 4 is provided with a gear ring, the gear rings are meshed with an output gear 5 on the inner side of the gear ring in a multi-tooth manner, and the output gear 5 is connected in series on the output shaft 6; and the ring plate 4 and the output gear 5 which are connected in series in each group are arranged in parallel.

The input shaft 1 is sleeved with a first eccentric sleeve 2, and the first eccentric sleeve 2 is rotatably connected with the annular plate 4 through a first eccentric sleeve bearing 3;

the second shaft II 9 is sleeved with a second eccentric sleeve 8, and the second eccentric sleeve 8 is rotatably connected with the annular plate 4 through a second eccentric sleeve bearing 7.

As shown in fig. 5, the ring gear of the ring plate 4 in series and the output gear 5 in series may mesh at any angle. An angle difference theta is formed between the phases of each group of ring plates 4 and the output gear 5, and typical angle differences are 0 degree, 60 degrees, 90 degrees, 120 degrees, 180 degrees and the like, so that the transmission stability can be further improved, more points can be meshed with the output gear 5 and the gear ring after being connected in series during transmission, and the power transmission and the transmission stability are improved.

The use process of the invention is as follows:

the input shaft 1, the first eccentric sleeve 2, the ring plate 4, the shaft II 9 and the second eccentric sleeve 8 form a parallelogram crank-link mechanism. The input shaft 1 and the first eccentric sleeve 2 form a previous crank, the shaft II 9 and the second eccentric sleeve 8 form another crank, and the ring plate 4 is a connecting rod in a crank-connecting rod mechanism. When the motor drives the input shaft 1 to move, the input shaft 1, the first eccentric sleeve 2, the shaft II 9 and the second eccentric sleeve 8 realize the planar movement of the annular plate 4 under the action of the two cranks. The inner gear ring on the ring plate 4 is meshed with the output gear 5, and the motion output is realized through the output shaft 6;

meanwhile, the motor can independently drive the input shaft 1 or the shaft II 9 to move, and also can independently drive one of the input shaft and the shaft II to move, so that the output shaft 6 is driven to output.

Example 2

The input shaft 1 is sleeved with a first eccentric sleeve bearing 3, and the first eccentric sleeve bearing 3 is rotatably connected with the annular plate 4; the second shaft II 9 is sleeved with a second eccentric sleeve bearing 7, and the second eccentric sleeve bearing 7 is rotatably connected with the annular plate 4. Otherwise, the same procedure as in example 1 was repeated

Example 3

The part where the input shaft 1 is connected with the annular plate 4 is eccentrically arranged; the part where the shaft II 9 is connected with the annular plate 4 is eccentrically arranged. Otherwise, the same procedure as in example 1 was repeated

The invention is mainly applied to the internal gear transmission structure of the gear box.

Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.

Claims

1. a multi-tooth meshing speed change mechanism, is characterized in that, comprises:

input shaft (1) as input;

An output shaft (6) as an output end;

a ring plate (4), rotatably connected with the input shaft (1), and an inner gear ring is arranged on the ring plate (4);

an output gear (5), fixed on the output shaft (6) and meshed with the ring gear;

The input shaft (1) is eccentrically connected to the ring plate (4) in an eccentric rotation, the ring plate (4) is also provided with a shaft II (9), and the shaft II (9) is connected to the ring plate (4). 4) Eccentric rotation connection, the shaft II (9), the input shaft (1) and the output shaft (6) are arranged in parallel.

2 . The multi-tooth meshing speed change mechanism according to claim 1 , wherein the inner gear of the ring plate ( 4 ) meshes with the output gear ( 5 ) with multiple teeth. 3 .

3 . The multi-tooth meshing speed change mechanism according to claim 2 , wherein the shaft II ( 9 ) extends out of the ring plate ( 4 ) and can be used as a power input end. 4 .

4 . The multi-tooth meshing speed change mechanism according to claim 3 , wherein the ring plate ( 4 ) is provided with two or more, and the ring plate ( 4 ) passes through the input shaft ( 1 ), the shaft II (9) and the output shaft (6) are connected in series, each group of the ring plates (4) is provided with a ring gear, and the ring gear is meshed with multiple teeth on the output gear (5) inside, and the output gear (5) is multi-toothed. A gear (5) is connected in series on the output shaft (6);

Each group of the ring plates (4) and the output gears (5) connected in series are arranged in parallel.

5 . The multi-tooth meshing speed change mechanism according to claim 4 , wherein the ring gear of the series-connected ring plate ( 4 ) and the series-connected output gear ( 5 ) can be engaged at any angle. 6 .

6. The multi-tooth meshing speed change mechanism according to any one of claims 1-5, characterized in that: the input shaft (1) is sleeved with a first eccentric sleeve (2), and the first eccentric sleeve (2) ) is rotatably connected with the ring plate (4) through the first eccentric sleeve bearing (3);

A second eccentric sleeve (8) is sleeved on the shaft II (9), and the second eccentric sleeve (8) is rotatably connected with the ring plate (4) through a second eccentric sleeve bearing (7).

7. The multi-tooth meshing speed change mechanism according to any one of claims 1-5, characterized in that: the input shaft (1) is sleeved with a first eccentric sleeve bearing (3), and the first eccentric sleeve bearing (3) rotatably connected with the ring plate (4);

A second eccentric sleeve bearing (7) is sleeved on the shaft II (9), and the second eccentric sleeve bearing (7) is rotatably connected with the ring plate (4).

8. The multi-tooth meshing speed change mechanism according to any one of claims 1-5, characterized in that: the part where the input shaft (1) is connected with the ring plate (4) is eccentrically arranged;

The part where the shaft II (9) is connected with the ring plate (4) is eccentrically arranged.