阅读说明：本技术 摆动式同速同力四轴传动机构 (Swing type same-speed same-force four-shaft transmission mechanism ) 是由 王刚 唐钦云 贾鹏 运飞宏 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种摆动式同速同力四轴传动机构,包括固定箱体与摆动箱体,固定箱体与摆动箱体转动连接,呈X型；固定箱体与摆动箱体的转动中心贯穿有中心通轴,中心通轴与回转驱动装置的输出轴传动连接,带动分别安装于固定箱体和摆动箱体内的齿轮同时转动；固定箱体内的齿轮两侧分别通过对应的从动轮组带动两个输出轴同速同力转动,所述摆动箱体内的齿轮两侧分别通过对应的从动轮组带动另外两个输出轴同速同力转动,两组从动轮组与对应齿轮的传动比相同。本发明通过多个传动轴实现同速度同扭矩输出,并在需要时摆动转轴改变转轴的位置,结构简单、集成度高、环境适应性强,能够满足移动轴的同速同力多轴传动需求。(The invention discloses a swing type same-speed same-force four-axis transmission mechanism, which comprises a fixed box body and a swing box body, wherein the fixed box body is rotationally connected with the swing box body and is in an X shape; a central through shaft penetrates through the rotating centers of the fixed box body and the swinging box body, and the central through shaft is in transmission connection with an output shaft of the rotation driving device and drives gears respectively arranged in the fixed box body and the swinging box body to rotate simultaneously; two output shafts are driven to rotate at the same speed and force through corresponding driven wheel groups on two sides of the gear in the fixed box body respectively, the other two output shafts are driven to rotate at the same speed and force through corresponding driven wheel groups on two sides of the gear in the swinging box body respectively, and the transmission ratios of the two groups of driven wheel groups and the corresponding gears are the same. The invention realizes the output of the same speed and the same torque through the plurality of transmission shafts, swings the rotating shaft to change the position of the rotating shaft when needed, has simple structure, high integration level and strong environmental adaptability, and can meet the requirements of the same speed and same force multi-shaft transmission of the moving shaft.)

1. A swing type same-speed same-force four-shaft transmission mechanism is characterized by comprising a fixed box body (16) and a swing box body (17), wherein the fixed box body (16) is rotationally connected with the swing box body (17) and is in an X shape;

a central through shaft (11) penetrates through the rotating centers of the fixed box body (16) and the swinging box body (17), and the central through shaft (11) is in transmission connection with an output shaft of the rotary driving device to drive gears in the fixed box body (16) and the swinging box body (17) to rotate simultaneously;

two sides of a gear in the fixed box body (16) respectively drive two output shafts to rotate at the same speed and force through corresponding driven wheel sets, and the rotating directions are opposite; two sides of a gear in the swing box body (17) respectively drive the other two output shafts to rotate at the same speed and force through corresponding driven wheel sets, and the rotating directions are opposite; the transmission ratio of the two driven wheel sets is the same as that of the corresponding gear.

2. The oscillating same-speed same-force four-shaft transmission mechanism as claimed in claim 1, wherein the end of the oscillating box (17) is hinged with a linear driving device for controlling the included angle between the fixed box (16) and the oscillating box (17).

3. The oscillating type same-speed same-force four-shaft transmission mechanism is characterized in that the central through shaft (11) is fixedly connected with a primary driven gear (4), a secondary driven gear (5) and a tertiary driven gear (12) respectively; the primary driven gear (4) and the secondary driven gear (5) are both arranged in the fixed box body (16);

the primary driven gear (4) is meshed with the driving gear (3) to form a pair, and the driving gear (3) is connected with an output shaft of the rotary driving device;

two sides of the secondary driven gear (5) are respectively meshed with the fixed box intermediate wheel (2) and the first driven gear (7), and the fixed box intermediate wheel (2) is meshed with the third driven gear (1); the first output shaft (6) penetrates through and is fixed at the center of the first driven gear (7), the third output shaft (15) penetrates through and is fixed at the center of the third driven gear (1), and the third driven gear (1) and the first driven gear (7) have the same number of teeth.

4. The oscillating same-speed same-force four-axis transmission mechanism as claimed in claim 3, wherein the three-stage driven gear (12) is mounted in an oscillating box (17);

the two sides of the three-stage driven gear (12) are respectively meshed with the intermediate gear (10) of the swing box body and the fourth driven gear (14), the intermediate gear (10) of the swing box body is meshed with the second driven gear (8), the second output shaft (9) penetrates through the center of the second driven gear (8), the fourth output shaft (13) penetrates through the center of the fourth driven gear (14), and the numbers of teeth of the second driven gear (8) and the fourth driven gear (14) are the same.

5. The oscillating same-speed same-force four-shaft transmission mechanism according to claim 4, characterized in that the transmission ratio between the secondary driven gear (5) and the first driven gear (7), the transmission ratio between the secondary driven gear (5) and the third driven gear (1), the transmission ratio between the tertiary driven gear (12) and the fourth driven gear (14), and the transmission ratio between the tertiary driven gear (12) and the second driven gear (8) are the same.

6. The oscillating same-speed same-force four-shaft transmission mechanism as in claim 5, wherein the fixed box intermediate wheel (2), the first driven gear (7) and the third driven gear (1) are all arranged in a fixed box body (16); the intermediate gear (10), the fourth driven gear (14) and the second driven gear (8) of the swing box body are all installed in the swing box body (17).

7. The oscillating same-speed same-force four-shaft transmission mechanism as claimed in claim 1, characterized in that the oscillating box (17) is rotatably connected with the fixed box (16) by a sliding bearing (20), and the central through shaft (11) is coaxial with the sliding bearing (20).

8. The oscillating type same-speed same-force four-shaft transmission mechanism as claimed in claim 1, wherein the shaft of the intermediate wheel (10) of the oscillating box body, the central through shaft (11) and the second output shaft (9) are not on the same straight line.

9. The oscillating same-speed same-force four-axis transmission according to claim 5, characterized in that the wire/pipe (21) to be processed passes between the third output shaft (15) and the fourth output shaft (13), and between the first output shaft (6) and the second output shaft (9).

10. The oscillating same-speed same-force four-shaft transmission mechanism according to claim 9, wherein the output shafts are all provided with rubber wheels (19).

Technical Field

The invention belongs to the technical field of mechanical engineering, and relates to a swing type same-speed same-force four-shaft transmission mechanism.

Background

The transmission is the mechanism category which is necessary for various machines to meet the integral framework. Therefore, different machines need to be equipped with one or more different transmission mechanisms to meet their application needs. The multi-shaft type same-speed and same-force transmission mechanism is widely applied to various occasions, however, most of the existing multi-shaft transmission mechanisms belong to fixed multi-shaft transmission, and the multi-shaft transmission mechanism which partially uses a movable shaft to meet the requirements of the same speed and the same force has the defect of complex structure.

The existing multi-shaft push-pull and feeding mechanism is generally in a two-character layout, namely two driving output shafts are horizontally arranged, the other two driven rotating shafts are horizontally arranged on the upper side or the lower side of the driving output shafts, and the distance between the driven rotating shafts and the driving wheel can be changed in a manual mode.

Disclosure of Invention

In order to solve the problems, the invention provides a swing type same-speed same-force four-shaft transmission mechanism, which realizes same-speed same-torque output through a plurality of transmission shafts, swings a rotating shaft to change the position of the rotating shaft when needed, has the characteristics of simple structure, high integration level and strong environmental adaptability, and is used for meeting the same-speed same-force multi-shaft transmission requirements of a moving shaft.

The technical scheme adopted by the invention is that the swing type same-speed same-force four-axis transmission mechanism comprises a fixed box body and a swing box body, wherein the fixed box body is rotationally connected with the swing box body and is in an X shape;

a central through shaft penetrates through the rotating centers of the fixed box body and the swinging box body, and the central through shaft is in transmission connection with an output shaft of the rotation driving device and drives gears respectively arranged in the fixed box body and the swinging box body to rotate simultaneously;

two sides of the gear in the fixed box body respectively drive two output shafts to rotate at the same speed and force through corresponding driven wheel groups, and the rotating directions are opposite; two sides of the gear in the swing box body respectively drive the other two output shafts to rotate at the same speed and force through corresponding driven wheel groups, and the rotating directions are opposite; the transmission ratio of the two driven wheel sets is the same as that of the corresponding gear.

Furthermore, the end part of the swinging box body is hinged with a linear driving device for controlling the included angle between the fixed box body and the swinging box body.

Furthermore, the central through shaft is fixedly connected with the first-stage driven gear, the second-stage driven gear and the third-stage driven gear respectively; the first-stage driven gear and the second-stage driven gear are both arranged in the fixed box body;

the primary driven gear is meshed with the driving gear to form a pair, and the driving gear is connected with an output shaft of the rotary driving device;

two sides of the secondary driven gear are respectively meshed with the fixed box intermediate wheel and the first driven gear, and the fixed box intermediate wheel is meshed with the third driven gear; the first output shaft penetrates through and is fixed at the center of the first driven gear, the third output shaft penetrates through and is fixed at the center of the third driven gear, and the third driven gear and the first driven gear have the same tooth number.

Further, the three-stage driven gear is arranged in the swinging box body;

two sides of the third-stage driven gear are respectively meshed with the intermediate gear of the swing box body and the fourth driven gear, the intermediate gear of the swing box body is meshed with the second driven gear, the second output shaft penetrates through and is fixed at the center of the second driven gear, the fourth output shaft penetrates through and is fixed at the center of the fourth driven gear, and the teeth of the second driven gear and the teeth of the fourth driven gear are the same.

Further, the transmission ratio between the secondary driven gear and the first driven gear, the transmission ratio between the secondary driven gear and the third driven gear, the transmission ratio between the tertiary driven gear and the fourth driven gear, and the transmission ratio between the tertiary driven gear and the second driven gear are the same.

Furthermore, the fixed box intermediate wheel, the first driven gear and the third driven gear are all arranged in the fixed box body; the intermediate gear, the fourth driven gear and the second driven gear of the swing box body are all arranged in the swing box body.

Furthermore, the swing box body is rotatably connected with the fixed box body through a sliding bearing, and the central through shaft is coaxial with the sliding bearing.

Furthermore, the shaft of the intermediate wheel of the swing box body, the central through shaft and the second output shaft are not on the same straight line.

Further, the wire/pipe to be processed passes through the space between the third output shaft and the fourth output shaft, and the space between the first output shaft and the second output shaft.

Furthermore, rubber wheels are mounted on the output shafts.

The invention has the beneficial effects that:

the swing type same-speed and same-force four-shaft transmission mechanism provided by the embodiment of the invention takes the rear end of a fixed box body as an input and four transmission shafts as an output, realizes the same-speed and same-torque output of multiple shafts through gear transmission, and can adjust the position of a swing box body by controlling the expansion and contraction of an air cylinder, so that the relative position of an output shaft is adjusted, and the swing type same-speed and same-force four-shaft transmission mechanism can be applied to machinery which needs the same speed and the same force and possibly needs to adjust the position of the output shaft; the device has the advantages of simple structure, high integration level, strong environmental adaptability and the like.

Compared with the prior art (patent of publication No. CN 107677725B), the embodiment of the invention uses X-type four-axis drive to ensure that four output shafts are symmetrically distributed at four X-type end points, so that the stress of the wire/pipe is more uniform, a larger push-pull force can be provided under the same positive pressure, and the problem that the wire/pipe is extruded and deformed due to the uneven diameter of the wire/pipe is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a transmission mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic top view of fig. 1.

Fig. 3 is a schematic diagram of the working principle of the embodiment of the invention.

In the figure: 1. the device comprises a third driven gear, 2, a fixed box intermediate gear, 3, a driving gear, 4, a first-stage driven gear, 5, a second-stage driven gear, 6, a first output shaft, 7, a first driven gear, 8, a second driven gear, 9, a second output shaft, 10, a swinging box intermediate gear, 11, a central through shaft, 12, a third-stage driven gear, 13, a fourth output shaft, 14, a fourth driven gear, 15, a third output shaft, 16, a fixed box, 17, a swinging box, 18, a cylinder, 19, a rubber wheel, 20, a sliding bearing and 21, and wires/pipes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the case of the example 1, the following examples are given,

a swing type same-speed same-force four-shaft transmission mechanism is shown in figure 1-2 and comprises a fixed box body 16 and a swing box body 17, wherein the fixed box body 16 is rotationally connected with the swing box body 17 and is in an X shape;

a central through shaft 11 penetrates through the rotating centers of the fixed box body 16 and the swinging box body 17, and the central through shaft 11 is in transmission connection with an output shaft of a rotary driving device to drive gears in the fixed box body 16 and the swinging box body 17 to rotate simultaneously;

two output shafts are driven by two sides of the gear in the fixed box body 16 through corresponding driven wheel groups to rotate at the same speed and force respectively, the other two output shafts are driven by two sides of the gear in the swinging box body 17 through corresponding driven wheel groups to rotate at the same speed and force respectively, and the transmission ratio of the two groups of driven wheel groups to the corresponding gears is the same.

Sliding bearing 20 has been arranged with fixed box 16 contact department to swing box 17, and relative motion range is little between swing box 17 and the fixed box 16, and is fast little, adopts sliding bearing 20 to rotate to be connected and can obtain littleer space size advantage under the prerequisite that satisfies the design index, and sliding bearing 20 outer lane and the cooperation of swing box 17, sliding bearing 20 inner circle and the cooperation of fixed box 16, and then make swing box 17 can and realize relative rotation between the fixed box 16. The output rod of the air cylinder 18 is hinged with the swinging box body 17, the cylinder body of the air cylinder 18 is hinged with the fixed box body 16, and the relative position of the swinging box body 17 and the fixed box body 16 can be accurately adjusted through the extension and contraction of the output rod of the air cylinder 18.

The fixed box body 16 is provided with a front gear box body and a rear gear box body, a first-stage driven gear 4 and a driving gear 3 are arranged in the rear gear box body of the fixed box body 16, the first-stage driven gear 4 is meshed with the driving gear 3 to form a pair, and a second-stage driven gear 5, a third driven gear 1, a first driven gear 7, a fixed box intermediate wheel 2, a first output shaft 6, a third output shaft 15 and four groups of bearings for supporting gears are arranged in the front gear box body of the fixed box body 16; the swing box body 17 is composed of a front swing box body shell and a rear swing box body shell, and a three-stage driven gear 12, a second driven gear 8, a fourth driven gear 14, a swing box body intermediate gear 10, a second output shaft 9, a fourth output shaft 13 and four groups of bearings for supporting gears are arranged in the swing box body 17.

The central through shaft 11 is fixedly connected with the primary driven gear 4, the secondary driven gear 5 and the tertiary driven gear 12 respectively; the central through-shaft 11 is coaxial with the slide bearing 20.

In the fixed box 16, the secondary driven gear 5 is respectively meshed with the fixed box intermediate wheel 2 and the first driven gear 7, and the fixed box intermediate wheel 2 is meshed with the third driven gear 1. The third driven gear 1 and the first driven gear 7 have the same number of teeth, the first output shaft 6 is fixed to the center of the first driven gear 7 in a penetrating manner, and the third output shaft 15 is fixed to the center of the third driven gear 1 in a penetrating manner.

In the swing box body 17, a third-stage driven gear 12 is respectively meshed with a swing box body intermediate gear 10 and a fourth driven gear 14, and the swing box body intermediate gear 10 is meshed with a second driven gear 8. The second driven gear 8 and the fourth driven gear 14 have the same number of teeth, the second output shaft 9 is fixed to the center of the second driven gear 8, and the fourth output shaft 13 is fixed to the center of the fourth driven gear 14.

Four output shafts are symmetrically arranged at four X-shaped ends, and the swinging box body 17 is controlled by the air cylinder 18 to rotate so as to automatically clamp the wire/pipe 21. The transmission ratio between the secondary driven gear 5 and the first driven gear 7, the transmission ratio between the secondary driven gear 5 and the third driven gear 1, the transmission ratio between the tertiary driven gear 12 and the fourth driven gear 14 and the transmission ratio between the secondary driven gear 5 and the second driven gear 8 are kept consistent; the introduction of the fixed box intermediate wheel 2 and the swing box intermediate wheel 10 changes the directions of the second output shaft 9 and the third output shaft 15, so that the four output shafts can synchronously rotate and output at the same speed and torque, and the actual requirements are met.

The shaft of the intermediate gear 10 of the swing box body, the central through shaft 11 and the second output shaft 9 are not on the same straight line, and in order to reduce the whole size, the arrangement position of the intermediate gear 10 of the swing box body requires that the linear distance between the second output shaft 9 and the fourth output shaft 13 is shortened as much as possible, so that the whole size of the swing box body 17 can be reduced as much as possible, and the weight of the mechanism is reduced; the arrangement of the intermediate wheel 2 of the fixed box is the same.

The working process of the embodiment of the invention comprises the following steps:

the embodiment of the invention is suitable for occasions needing to push and pull the wire/pipe 21, such as a welding wire feeding mechanism, a cable push-pull mechanism and the like. As shown in fig. 3, in the embodiment of the present invention, rubber wheels 19 are mounted on four output shafts, and a wire/pipe 21 is horizontally placed between the third output shaft 15 and the fourth output shaft 13, and between the first output shaft 6 and the second output shaft 9, and the air cylinder 18 is used to push the swing box 17 to rotate, so as to automatically compress the wire/pipe 21; the cylinder 18 drives the swing box 17 to rotate around the axis of the central through shaft 11 (i.e. the sliding bearing 20) relative to the fixed box 16 through the telescopic output shaft, so as to adjust the distance between the third output shaft 15 and the fourth output shaft 13 and the distance between the first output shaft 6 and the second output shaft 9, thereby achieving the purpose of swinging to adapt to wires/pipes 21 with different sizes.

In the aspect of same speed and force, the power element inputs rotation action through a driving gear 3 at the rear side of a fixed box 16, and the driving gear 3 is matched with a first-stage driven gear 4 to drive a central through shaft 11 to rotate. Inside the fixed box 16, the central through shaft 11 drives the secondary driven gear 5 to rotate, and along with the rotation of the secondary driven gear 5, the third driven gear 1 and the first driven gear 7 which are matched with the secondary driven gear respectively drive the first output shaft 6 and the third output shaft 15 to realize the same-speed and same-force output, and the rotating directions are opposite; in the interior of the swinging box body 17, the central through shaft 11 drives the three-stage driven gear 12 to rotate, the second driven gear 8 and the fourth driven gear 14 which are matched with the three-stage driven gear respectively drive the second output shaft 9 and the fourth output shaft 13 to realize the same-speed and same-force output, the rotating directions are opposite, the transmission ratio of the gear set in the swinging box body 17 is consistent with that of the gear set in the fixed box 16, so that the second output shaft 9 and the third output shaft 15 above the wire/pipe 21 output at the same speed and the same force, and the rotating directions are the same; the first output shaft 6 and the fourth output shaft 13 below the wire/pipe 21 output with the same speed and force, the rotating directions are the same, the rotating directions of the upper and lower output shafts of the wire/pipe 21 are opposite, and the 4 rubber wheels 19 rotate along with the corresponding output shafts, so that the wire/pipe 21 can be pushed forwards or pulled backwards. Compared with the existing fixed multi-shaft transmission structure and moving shaft multi-shaft transmission mechanism, the embodiment of the invention has the practical application advantages that one set of mechanism can automatically adapt to wires/pipes 21 with different diameters under the condition of not dismounting any parts, and the positive pressure of each output shaft and the wires/pipes 21 can be quickly and accurately automatically adjusted by adjusting the air pressure of the air cylinder 18, so that the maximum push-pull force of the wires/pipes 21 is adjusted.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.