阅读说明：本技术 杆轮传动机构 (Rod wheel transmission mechanism ) 是由 汤斌 于 2019-12-20 设计创作，主要内容包括：一种杆轮传动机构,包括设置在机架上做旋转运动的第一杆轮和第二杆轮,在所述的第一杆轮圆周均匀分布设置有支杆,在所述的第二杆轮的圆周均匀分布设置有支杆,在所述的第一杆轮和第二杆轮的支杆上设置有支杆轴承,当第一杆轮和第二杆轮通过支杆相互作用时,其作用力位置位于支杆轴承的外壁面。(The utility model provides a pole wheel drive mechanism, is rotary motion's first pole wheel and second pole wheel including setting up in the frame first pole wheel circumference evenly distributed be provided with branch the circumference evenly distributed of second pole wheel be provided with branch first pole wheel and second pole wheel the branch on be provided with the branch bearing, when first pole wheel and second pole wheel pass through branch interact, its effort position is located the outer wall of branch bearing.)

1. The utility model provides a pole wheel drive mechanism, is rotary motion's first pole wheel and second pole wheel including setting up in the frame first pole wheel circumference evenly distributed be provided with branch the circumference evenly distributed of second pole wheel be provided with branch first pole wheel and second pole wheel the branch on be provided with the branch bearing, when first pole wheel and second pole wheel pass through branch interact, its effort position is located the outer wall of branch bearing.

2. The lever wheel transmission mechanism according to claim 1, wherein: the number of the supporting rods arranged on the first rod wheel is more than 3, and the number of the supporting rods arranged on the second rod wheel is more than 3.

3. The lever wheel transmission mechanism according to claim 1, wherein: the included angle between the axis of the first rod wheel and the axis of the second rod wheel ranges from 30 degrees to 150 degrees.

4. The lever wheel transmission mechanism according to claim 1, wherein: and the outer wall surface of the support rod bearing is provided with a wear-resistant layer.

5. The lever wheel transmission mechanism according to claim 1, wherein: and an elastic material layer is arranged on the outer wall surface of the support rod bearing.

6. The lever wheel transmission mechanism according to claim 1, wherein: the outer wall surface of the support rod bearing is provided with an outer layer with high friction resistance.

7. The lever wheel transmission mechanism according to claim 1, wherein: and a thrust platform is arranged on the outer wall surface of the support rod bearing.

8. The lever wheel transmission of claim 7, wherein: the support rod bearings are provided with a reset mechanism, and the reset mechanism enables the thrust platforms of the two support rod bearings which interact to keep a nearly parallel state at the position when the thrust platforms start to combine.

9. The lever wheel transmission of claim 7, wherein: the acting force surface of the thrust platform of the support rod bearing has elastic transmission characteristics.

10. The lever wheel transmission of claim 7, wherein: the thrust platform acting surface of the strut bearing has a low friction resistance characteristic.

Technical Field

The invention relates to a rod wheel transmission mechanism, which is suitable for the field of transmission, in particular to transmission with a large included angle between an input shaft and an output shaft.

Background

The existing universal joint bearing can realize power transmission under the condition that an input shaft and an output shaft are intersected and have a certain included angle, but the included angle range is small, the transmission of the included angle of 90 degrees can be realized only by the combined action of a plurality of universal joint bearings, the assembling precision is high, the cost is high, and the rotating speed of the output shaft cannot be changed.

Disclosure of Invention

The invention provides the lever wheel transmission mechanism which has simple structure and high efficiency, can transmit within the range of 30-150 degrees of included angle between the output shaft and the input shaft, can change the rotating speed of the output shaft, can ensure that the axial leads of the input shaft and the output shaft can not intersect and is easy to assemble.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the utility model provides a pole wheel drive mechanism, is rotary motion's first pole wheel and second pole wheel including setting up in the frame first pole wheel circumference evenly distributed be provided with branch the circumference evenly distributed of second pole wheel be provided with branch first pole wheel and second pole wheel the branch on be provided with the branch bearing, when first pole wheel and second pole wheel pass through branch interact, its effort position is located the outer wall of branch bearing.

As an improvement of the invention, the number of the struts arranged on the first rod wheel is more than 3, and the number of the struts arranged on the second rod wheel is more than 3.

As a refinement of the present invention, the angle between the axis of the first roller and the axis of the second roller ranges from 30 degrees to 150 degrees.

As an improvement of the invention, the outer wall surface of the support rod bearing is provided with a wear-resistant layer.

As an improvement of the invention, the outer wall surface of the strut bearing is provided with an elastic material layer.

As an improvement to the invention, the outer wall surface of the strut bearing is provided with an outer layer with high friction resistance.

As an improvement of the invention, a thrust platform is arranged on the outer wall surface of the support rod bearing, and the acting surface of the thrust platform is in a plane shape.

As an improvement of the invention, a reset mechanism is arranged on the strut bearing, the reset mechanism enables the thrust platforms of the strut bearing on the two interacting strut wheels to be in a near parallel state at the beginning of combination, and the reset mechanism can be an elastic mechanism or a limiting mechanism arranged on the rack enables the thrust platforms of the strut bearing to be in a preset position at the beginning of combination.

As an improvement to the invention, the thrust platform acting surface of the strut bearing has elastic transmission characteristics.

As an improvement to the present invention, the thrust platform acting surface of the strut bearing has a low frictional resistance characteristic and the thrust platform acting surface of the strut bearing has a wear resistant characteristic.

The beneficial effect of adopting above technical scheme is: the bearing rod bearing is arranged on the bearing rod of the bearing rod wheel, so that the acting force of two interacting bearing rods is changed from the point contact sliding transmission with low reliability and low efficiency into the high-efficiency bearing rod bearing transmission, the bearing rod bearing can be a sliding bearing or a rolling bearing, the stress point of the bearing rod wheel during working is positioned on the outer wall surface of the bearing rod bearing, the bearing rod bearing rotates in the transmission process, so that the line formed by a single contact point of the stress contact point range is changed into the whole contact point surface of the outer wall surface of the bearing, the service life and the reliability of the transmission mechanism are greatly increased, the stress contact surface range is also enlarged by increasing the surface elastic layer of the bearing rod bearing, the possibility of sliding between the bearing rods is further reduced by increasing the high-friction resistance outer layer on the outer wall surface of the bearing rod bearing, and the service life and the reliability of the bearing rod bearing are, the thrust platform is arranged on the supporting rod bearing, so that the stress contact of the supporting rod bearing which interacts with the thrust platform is changed into surface contact, the reliability of the stress position is greatly improved, the service life of the rod wheel is greatly prolonged, when the supporting rod bearing is provided with a plurality of thrust platforms, the thrust platforms can be enabled to act one by one sequentially through the reset mechanism, the service life of the rod wheel is prolonged, the power transmission of the included angle of the output shaft to be large can be easily realized on the premise that the transmission ratio is changed, and the included angle is 90.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of the present invention.

FIG. 2 is a schematic structural diagram of the embodiment of FIG. 1 with the addition of a thrust platform.

The labels in the figure are:

1-a first rod wheel, 2-a second rod wheel, 3-a support rod, 4-a support rod bearing and 41-a thrust platform.

Detailed Description

Preferred embodiments of the lever wheel transmission mechanism of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, fig. 1 shows a transmission process of a bar wheel mechanism, which includes a first bar wheel 1 and a second bar wheel 2 disposed on a frame for rotating, wherein the first bar wheel 1 is uniformly and fixedly distributed with 10 struts 3 (in this embodiment, the number of struts is 10) on the circumference, the second bar wheel is uniformly and fixedly distributed with 6 struts 3 (in this embodiment, the number of struts is 6) on the circumference, strut bearings 4 are disposed on the struts 3 of the first bar wheel 1 and the second bar wheel 2, when the first bar wheel 1 and the second bar wheel 2 interact with each other through the struts 3, the acting force positions are located on the outer wall surfaces of the strut bearings, in this embodiment, the included angle between the rotating shafts of the first bar wheel 1 and the second bar wheel 2 is 90, and the rotating speed of the first bar wheel 1 is 0.6 times that of the second bar wheel 2. There is another pair of strut bearings that come into contact when the two interacting strut bearings in this embodiment begin to disengage.

Preferably, the number of the struts arranged on the first rod wheel is more than 3, and the number of the struts arranged on the second rod wheel is more than 3.

Preferably, the included angle between the axis of the first rod wheel and the axis of the second rod wheel ranges from 30 degrees to 150 degrees.

Preferably, the outer wall surface of the support rod bearing is provided with a wear-resistant layer.

Preferably, the outer wall surface of the strut bearing is provided with an elastic material layer.

Preferably, the outer wall surface of the strut bearing is provided with an outer layer with high friction resistance.

When 2 rod wheel transmission mechanisms are adopted to be matched for use, 2 rod wheels between the front rod wheel mechanism and the rear rod wheel mechanism are connected through a shaft so as to realize long-distance and large-angle power transmission, such as bicycle transmission used for replacing a chain.

The rod wheel transmission mechanism has high transmission efficiency and low assembly requirement, and can maintain high-efficiency and high-quality transmission effect even when the positions of the front and rear rod wheels and the included angle of the axes are changed in a large range.

Referring to fig. 2, fig. 2 is substantially the same as the embodiment of fig. 1, in the embodiment of fig. 2, 6 thrust platforms 41 are fixedly and evenly distributed on the outer wall surface of the strut bearing, when the two strut wheels interact, the acting force contact point is the plane of the thrust platform 41 positioned on the two strut bearings, when the two strut wheels work, the planes of the two thrust platforms 41 also have a relative sliding process in the pushing process, and the low secondary structure effect of surface contact greatly increases the transmission force range of the strut wheels and also greatly improves the reliability and the service life of the strut wheels.

Preferably, the thrust platform force surface is planar.

Preferably, the strut bearing is provided with a reset mechanism, the reset mechanism enables the thrust platforms of the strut bearings on the two interacting rod wheels to be in a near parallel state at the time of starting combination, the reset mechanism can be an elastic mechanism, and the reset mechanism can also be a limiting mechanism arranged on the rack, so that the thrust platforms of the strut bearings are in a preset position at the time of starting combination.

Preferably, the thrust platform acting surface of the strut bearing has elastic transmission characteristics.

Preferably, the thrust platform force surface of the strut bearing has low friction resistance characteristics and the thrust platform force surface of the strut bearing has wear resistance characteristics.

The rod wheel transmission mechanism has the characteristics of simple structure, low requirement on processing precision, large transmission acting force, adjustable output shaft angle of the universal joint and variable transmission ratio of the gear, low requirement on assembly and loose requirement on assembly position.