WO2021196205A1

WO2021196205A1 - Multi-stage transmission shaft device and system

Info

Publication number: WO2021196205A1
Application number: PCT/CN2020/083304
Authority: WO
Inventors: 汤辉; 汤志为; 杨凯; 郑付成; 黄东海; 丰凯; 金攀; 熊佳远; 高云峰
Original assignee: 大族激光科技产业集团股份有限公司
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-10-07
Also published as: CN112601897A; CN112601897B

Abstract

A multi-stage transmission shaft device and system. The multi-stage transmission shaft device comprises: multiple transmission shafts (110), the multiple transmission shafts (110) being coaxially sleeved; bearings (120), which are respectively provided on side surfaces of the two ends of each of the transmission shafts (110), the inner sides of the bearings (120) being fixedly connected to the outer sides of corresponding transmission shafts (110); and timing pulleys (130), the inner side of each timing pulley (130) being separately fixedly connected to the outer side of the transmission bearing at one end of an adjacent inner transmission shaft (110) and the outer side of an adjacent outer transmission shaft (110).

Description

Multi-stage transmission shaft device and system

Technical field

The invention relates to the technical field of shaft transmission, in particular to a multi-stage transmission shaft device and system.

Background technique

With the rapid development of the lithium battery industry, lithium battery cell winding equipment is constantly being updated, especially the use of multi-station winding to achieve cell winding.

In the multi-station winding, each station is assigned to complete one or more procedures, and all work independently. For example, it is realized by the turret module (including the inner ring and the outer ring that can rotate with each other). Each winding station is installed on the inner ring of the turret module, and the angle is changed as the inner ring of the turret module rotates. Realize station switching. However, if the drive module of each station is directly installed on the inner ring of the turret module, there are several problems:

(1) It is necessary to increase the drive module circuit conversion mechanism to realize the rotation of the driven shaft on the inner ring of the drive module driving the turret module, which is complicated in structure; (2) Since the inner ring of the turret module can be rotated, the circuit connection of the drive module is easy Winding is difficult to achieve.

Of course, it can be realized with a hollow motor, but the cost is high, which is not conducive to large-scale production and application.

technical problem

The technical problem to be solved by the present invention is to provide a multi-stage drive shaft device and system in view of the above-mentioned defects of the prior art, and solve the problems of complicated structure, difficult realization and high cost of the multi-station winding structure based on the turret module .

Technical solutions

The technical solution adopted by the present invention to solve its technical problems is to provide a multi-stage transmission shaft device, including:

A plurality of transmission shafts, the transmission shafts are all coaxially laminated and sleeved;

Bearings are respectively arranged on the side surfaces of both ends of each transmission shaft, and the inner side of the bearing is fixedly connected with the outer side of the corresponding transmission shaft; wherein the bearing of the outermost transmission shaft is a positioning bearing, and the remaining bearings are transmission bearings;

Synchronous wheel, the inner side of the synchronous wheel is respectively fixedly connected with the outer side of one end transmission bearing on the adjacent inner transmission shaft and the outer side of the adjacent outer transmission shaft.

Among them, a preferred solution is that both ends of the transmission shaft are provided with a structure in which a bearing and a synchronizing wheel cooperate.

Among them, a preferred solution is that the transmission bearings on the adjacent inner transmission shafts are attached to or arranged close to the end surfaces of the adjacent outer transmission shafts.

Among them, a preferred solution is that a boss is provided in the middle of the surface of the outermost transmission shaft, and the positioning bearing is attached to or close to the end surface of the boss.

Among them, a preferred solution is that the innermost transmission shaft has a hollow structure.

Among them, a preferred solution is that the outer side of the synchronous wheel includes a ring groove that can be set to match the transmission belt, and the surface of the ring groove is provided with a pattern structure that can increase the contact friction.

Among them, a preferred solution is that the synchronization wheel and the transmission shaft are limited and fixed by a flat key.

The technical solution adopted by the present invention to solve its technical problems is to provide a multi-stage drive shaft system, including a drive device and a multi-stage drive shaft device, the drive device includes a drive bracket and a plurality of drive motors, the drive bracket and The innermost transmission shaft is fixedly connected or rotationally connected, and fixedly connected with the outer side of the positioning bearing. The driving motor drives the corresponding synchronous wheel to rotate through the transmission belt to drive the corresponding transmission shaft to rotate.

Among them, a preferred solution is that: both ends of the transmission shaft are provided with a structure in which bearings and synchronizing wheels cooperate; the multi-stage transmission shaft system further includes a driven module, and the driven module includes a driven bracket and a A driven wheel, the driven bracket and the driving bracket are respectively fixedly connected to the outer side of the corresponding positioning bearing, the synchronous wheel is driven by the drive shaft to rotate, and the corresponding driven wheel is driven to rotate through the transmission belt.

Among them, a preferred solution is: the driven module further includes a driven shaft fixed coaxially with the driven wheel.

Beneficial effect

The beneficial effect of the present invention is that, compared with the prior art, the present invention realizes multi-stage transmission through a multi-stage transmission shaft device, each stage of the transmission can be independently rotated, and the rotation center axis overlaps to achieve two, three or more stages. Shaft transmission; and, the innermost transmission shaft is a hollow structure to prevent chaotic wiring.

Description of the drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the accompanying drawings:

FIG. 1 is a schematic diagram of a partial cross-sectional structure of a multi-stage transmission shaft device of the present invention;

2 is a schematic cross-sectional structure diagram of the multi-stage transmission shaft device of the present invention;

Fig. 3 is a schematic view of the front structure of the multi-stage transmission shaft device of the present invention;

Figure 4 is a three-dimensional schematic diagram of the multi-stage transmission shaft device of the present invention;

Figure 5 is a schematic diagram of the structure of the multi-stage drive shaft system of the present invention;

Fig. 6 is a partially enlarged schematic diagram of the multi-stage transmission shaft system of the present invention.

The best mode of the present invention

The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 4, the present invention provides a preferred embodiment of a multi-stage transmission shaft device.

A multi-stage transmission shaft device includes a transmission shaft 110, a bearing 120 and a synchronizing wheel 130 to form a multi-stage transmission structure. There are multiple transmission shafts 110, all of which are coaxially laminated and sleeved. Both ends of each transmission shaft 110 Bearings 120 are provided on the sides, and the inner side of the bearing 120 is fixedly connected to the outer side of the corresponding transmission shaft 110. The outer side of the outer transmission shaft 110 is fixedly connected, and the bearings 120 on the side surfaces of both ends of each transmission shaft 110 are respectively connected to a corresponding synchronization wheel 130.

Specifically, the innermost transmission shaft 110 is used as the first-stage transmission shaft, and the number of stages increases in order according to the outer coaxially stacked sleeves of the transmission shaft 110. For example, the second-stage transmission shaft is coaxially sleeved outside the first-stage transmission shaft, The third-stage transmission shaft is coaxially sleeved on the outside of the second-stage transmission shaft, up to the outermost Nth-stage transmission shaft. In order to facilitate the description of the multi-stage transmission shaft device, the following uses the third-stage transmission shaft device as the main body of description, of course it can be used In other multi-stage transmission shaft devices, such as four-stage transmission shaft devices, five-stage transmission shaft devices, etc., the three-stage transmission shaft device has three transmission shafts 110, namely the first-stage transmission shaft 111 and the second-stage transmission shaft. 112 and the third-stage transmission shaft 113, and refer to FIG. 2. Wherein, both ends of the transmission shaft 110 are provided with a structure in which a bearing 120 and a synchronizing wheel 130 cooperate.

Bearings 120 are provided at both ends of each transmission shaft 110. The bearings 120 on the first-stage transmission shaft 111 and the second-stage transmission shaft 112 are transmission bearings, and the bearings of the third-stage transmission shaft 113 (the outermost transmission shaft 110) 120 is a positioning bearing. The bearings 120 are arranged symmetrically at both ends of each transmission shaft 110, and the outer side of the bearing 120 can rotate relative to the corresponding transmission shaft 110, and the outer side of the bearing 120 is connected to the next-stage transmission shaft 110 through a synchronization wheel 130. It is fixedly connected, and the transmission shaft 110 is driven to rotate through the synchronization wheel 130, and is transmitted to the symmetrical synchronization wheel 130. For example, the first-stage transmission shaft 111 is provided with a first bearing 121, the inner side of the first bearing 121 is fixedly connected with the surface of the first-stage transmission shaft 111, and the outer side of the first bearing 121 is fixedly connected with the inner side of the first synchronization wheel 131 , The inner side of the first synchronizing wheel 131 is also fixedly connected to the surface of the second-stage transmission shaft 112 to realize the synchronous rotation of the first synchronizing wheel 131, the outer side of the first bearing 121, and the second-stage transmission shaft 112; in the same way, the second synchronization The matching structure of the wheel 132, the second bearing 122 and the third-stage transmission shaft 113 may refer to the matching structure of the first synchronizing wheel 131, the first bearing 121 and the second-stage transmission shaft 112. And, the third bearing 123 on the third-stage transmission shaft 113 is used as a positioning bearing, and the outer side of the third bearing 123 is supported and matched with an external structure (support) to realize the installation of the multi-stage transmission shaft device.

In this embodiment, the transmission bearing on the adjacent inner transmission shaft 110 is attached to or arranged close to the end surface of the adjacent outer transmission shaft 110. By making the transmission bearing and the transmission shaft 110 fit or close together, on the one hand, the position of the transmission bearing is limited by the transmission shaft 110 to improve the axial stability of the transmission bearing. On the other hand, the synchronous wheel 130 and the transmission bearing are designed to be compact. The structure is optimized to reduce the structure volume, and the synchronous wheels 130 of the same width can cover more area or completely cover the outer side of the transmission bearing.

At the same time, the synchronizing wheel 130 and the transmission shaft 110 are limited and fixed by a flat key. The flat key is a key that relies on two side surfaces as a working surface and transfers torque by squeezing the side of the key and the keyway.

In this embodiment, a boss is provided in the middle of the surface of the outermost transmission shaft 110, and the positioning bearing is attached to or close to the end surface of the boss. In order to limit the position of the transmission bearing, a boss is provided in the middle of the surface of the transmission shaft 110, and the axial stability of the transmission bearing is improved by the abutment or closeness of the transmission bearing and the end surface of the boss.

Further, there are a plurality of the positioning bearings arranged side by side to realize the positioning of the outermost transmission shaft 110, thereby realizing the positioning of the entire multi-stage transmission shaft device. When it is working, it is stably fixed, and its disturbance is placed to reduce the work. The resulting vibration. By arranging a plurality of positioning bearings side by side, the contact area between the positioning bearing and the external positioning bracket is further increased, the stability during positioning is further improved, and the vibration generated by the work is reduced.

In this embodiment, the innermost transmission shaft 110 has a hollow structure. It is convenient for the routing of the multi-stage transmission shaft device. On the one hand, the placement of various connecting wires leads to confusion in the routing due to the structure of the multi-stage transmission shaft 110. On the other hand, during the rotation of each transmission shaft 110 of the multi-stage transmission shaft device, It does not affect the routing in the hollow structure, and solves the problem that because the inner ring of the turret module can be rotated, the line connection of the drive module is easily wound and difficult to achieve. The hollow structure does not affect the vent pipe and the line in the hollow shaft.

In this embodiment, the outer side of the synchronous wheel 130 includes a ring groove that can be set to cooperate with the transmission belt, and the surface of the ring groove is provided with a texture structure that can improve contact friction. The synchronous wheel 130 is driven by the belt of the external motor to rotate, and the rotating force is transmitted to the synchronous wheel 130 on the same transmission shaft 110 to realize the transmission of the rotating force. Of course, the synchronizing wheel 130 may also have other structures, such as gears, which mesh with the gears of an external motor to achieve transmission.

As shown in Figures 5 and 6, the present invention provides a preferred embodiment of a multi-stage drive shaft system.

A multi-stage transmission shaft system includes a driving device and a multi-stage transmission shaft device. The driving device includes a driving bracket 210 and a plurality of driving motors 220. The driving bracket 210 is fixedly connected or rotationally connected with the innermost transmission shaft 110, And fixedly connected to the outer side of the positioning bearing, the driving motor 220 drives the corresponding synchronization wheel 130 to rotate through a transmission belt to drive the corresponding transmission shaft 110 to rotate.

And, both ends of the transmission shaft 110 are provided with a structure in which a bearing 120 and a synchronization wheel 130 cooperate; the multi-stage transmission shaft system further includes a driven module, the driven module includes a driven bracket 320 and a plurality of The driven wheel 321, the driven bracket 320 and the driving bracket 210 are respectively fixedly connected to the outer side of the corresponding positioning bearing, the synchronous wheel 130 is driven by the transmission shaft 110 to rotate, and the corresponding driven wheel 321 is driven to rotate through the transmission belt.

Specifically, the driving bracket 210 and the driven bracket 320 are used to position the multi-stage transmission shaft device (for example, the driving bracket 210 is positioned with the bearing 120 through the positioning buckle 211), and a driving motor 220 drives a synchronization wheel 130 through a belt 230. Rotates, the other driving motor 220 drives the other synchronous wheel 130 on the same side to rotate through the belt 230; the corresponding synchronous wheel 130 drives the corresponding transmission shaft 110 to rotate, thereby driving the corresponding synchronous wheel 130 on the other side to rotate; a synchronous wheel 130 The belt 322 drives one driven wheel 321 to rotate, and the other synchronous wheel 130 drives the other driven wheel 321 to rotate through the belt 322.

In this embodiment, the driven module further includes a driven shaft 323 fixed coaxially with the driven wheel 321. The driven shaft 323 is also provided with a fixing hole 3211, and the driven shaft 323 is fixed through the fixing hole 3211 to realize the fixing of the driven shaft 323 and the driven wheel 321.

Of course, the driving bracket 210 also includes a fixing portion 212 to fix the innermost transmission shaft 110.

In this embodiment, the driven module further includes an outer wheel 310, the driven bracket 320 is preferably an inner wheel, and the inner wheel and the outer wheel 310 form a bearing structure.

The multi-stage transmission shaft system of the present invention is applied to the multi-station winding equipment of lithium battery cells. The multi-stage transmission shaft system is suitable for double-station, three-station or more-station winding equipment, which is economical and stable. Reliable, can help increase the output of lithium batteries, and provide effective support to promote the development of lithium battery manufacturing.

The above are only the best embodiments of the present invention and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the scope of the patent application of the present invention are covered by the present invention.

Claims

A multi-stage transmission shaft device is characterized in that it comprises:

A plurality of transmission shafts, the transmission shafts are all coaxially laminated and sleeved;

Bearings are respectively arranged on the side surfaces of both ends of each transmission shaft, and the inner side of the bearing is fixedly connected with the outer side of the corresponding transmission shaft; wherein the bearing of the outermost transmission shaft is a positioning bearing, and the remaining bearings are transmission bearings;

Synchronous wheel, the inner side of the synchronous wheel is respectively fixedly connected with the outer side of one end transmission bearing on the adjacent inner transmission shaft and the outer side of the adjacent outer transmission shaft.
The multi-stage transmission shaft device according to claim 1, wherein the transmission bearings on the adjacent inner transmission shafts are attached to or arranged close to the end surfaces of the adjacent outer transmission shafts.
The multi-stage transmission shaft device according to claim 1, wherein a boss is provided in the middle of the surface of the outermost transmission shaft, and the positioning bearing is attached to or close to the end surface of the boss.
The multi-stage transmission shaft device according to claim 1, wherein the innermost transmission shaft is a hollow structure.
The multi-stage transmission shaft device according to claim 1, wherein the outer side of the synchronization wheel includes a ring groove that can be set to match the transmission belt, and the surface of the ring groove is provided with a pattern structure that can improve contact friction.
The multi-stage transmission shaft device according to claim 1, wherein the synchronization wheel and the transmission shaft are limited and fixed by a flat key.
A multi-stage transmission shaft system, characterized in that it comprises a driving device and the multi-stage transmission shaft device according to any one of claims 1-6, the driving device includes a driving bracket and a plurality of driving motors, the driving bracket It is fixedly connected or rotationally connected with the innermost transmission shaft and fixedly connected with the outer side of the positioning bearing. The driving motor drives the corresponding synchronous wheel to rotate through the transmission belt to drive the corresponding transmission shaft to rotate.
The multi-stage transmission shaft system according to claim 7, characterized in that: both ends of the transmission shaft are provided with a structure in which a bearing and a synchronizing wheel cooperate; the multi-stage transmission shaft system further comprises a driven module, so The driven module includes a driven bracket and a plurality of driven wheels. The driven bracket and the driving bracket are respectively fixedly connected to the outer side of the corresponding positioning bearing. The synchronous wheel rotates under the drive of the drive shaft and drives the corresponding follower through the drive belt. The moving wheel rotates.
The multi-stage transmission shaft system according to claim 8, wherein the driven module further comprises a driven shaft fixed coaxially with the driven wheel.