CN208123376U - One kind reading system based on gear-driven spiral multilayer curve - Google Patents

Abstract

The utility model discloses a gear-driven spiral multi-layer curve reading system, which comprises a first gear meshed with a spiral multi-layer curve gear, the first gear is rotatably arranged on the first gear shaft, and the first gear The shaft is hinged to one end of the first connecting rod, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to a third gear shaft, the first gear shaft can slide relative to the third gear shaft, An elastic element is arranged between the first gear shaft and the third gear shaft, the third gear shaft is rotatably provided with a third gear, the hinge of the first connecting rod and the second connecting rod is provided with a second gear shaft, and A second gear is rotatably arranged on the second gear shaft, the first gear, the second gear and the third gear are sequentially connected through a synchronous mechanism, and the third gear is meshed with a circular standard gear. The structure is simple, the production cost is low, and the angular velocity change of the spiral multi-layer curve gear can be read and output through the circular standard gear.

Description

A Helical Multilayer Curve Reading System Based on Gear Transmission

technical field

The utility model relates to the technical field of mechanical engineering, in particular to a gear-driven spiral multi-layer curve reading system.

Background technique

Due to the use of standard gears in traditional mechanical power transmission, the angular velocity of the final output can only be changed by setting different gear ratios without changing the power system. If aperiodic irregular changes are to be produced on the final output components A higher angular velocity requires a more complex switching device and more gear sets to meet the constantly changing gear ratio settings.

Aiming at the problems in the related technologies, no effective solution has been proposed yet.

Utility model content

Aiming at the above-mentioned technical problems in the related art, the utility model proposes a spiral multi-layer curve reading system based on gear transmission, which has a simple structure and can read the angular velocity change of the spiral multi-layer curve gear and output it through a circular standard gear.

For realizing above-mentioned technical purpose, technical scheme of the present utility model is realized like this:

A gear-based spiral multi-layer curve reading system, including a first gear meshed with a spiral multi-layer curve gear, the first gear is rotatably arranged on a first gear shaft, and the first gear shaft One end of the first connecting rod is hinged, the other end of the first connecting rod is hinged at one end of the second connecting rod, and the other end of the second connecting rod is hinged with a third gear shaft, and the first gear shaft can be relatively The third gear shaft slides, an elastic element is arranged between the first gear shaft and the third gear shaft, a third gear is rotatably arranged on the third gear shaft, and the first connecting rod and The hinge of the second connecting rod is provided with a second gear shaft, and the second gear shaft is rotatably provided with a second gear, and the first gear, the second gear and the third gear pass through The synchronous mechanism is connected in sequence, and the third gear is meshed with a circular standard gear, and the circular standard gear is rotatably arranged on the fourth gear shaft.

Further, the pitch circle diameter of the first gear is much smaller than the pitch circle diameter of any curve segment on the helical multi-layer curved gear.

Further, the elastic element is a spring.

Optionally, the synchronous mechanism is a synchronous belt.

Optionally, the synchronization mechanism includes a first synchronization link and a second synchronization link.

Further, the first gear is hinged to one end of the first synchronous link, the other end of the first synchronous link is hinged to the second gear, and the second gear is hinged to the second synchronous link. One end, and the other end of the second synchronous connecting rod is hinged to the third gear.

Further, the number of the first synchronizing link and the second synchronizing link is two, and one end surface of the second gear is respectively hinged with one of the first synchronizing link and one of the As for the second synchronous connecting rod, another first synchronous connecting rod and another second synchronous connecting rod are respectively hinged on the other end surface of the second gear.

The beneficial effect of the utility model: the structure is simple, the production cost is low, and the angular velocity change of the spiral multi-layer curved gear can be read and output through the circular standard gear.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the present invention, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is the front view of the spiral multi-layer curve reading system based on gear transmission according to the embodiment of the present invention;

Fig. 2 is the bottom view of the spiral multi-layer curve reading system based on gear transmission according to the embodiment of the present invention;

Fig. 3 is a front view of the connection mode of the first gear, the second gear and the third gear according to the embodiment of the present invention;

Fig. 4 is a bottom view of the connection manner of the first gear, the second gear and the third gear according to the embodiment of the present invention.

In the picture:

1. Spiral multi-layer curved gear; 2. First gear; 3. First gear shaft; 4. First connecting rod; 5. Second connecting rod; 6. Third gear shaft; 7. Elastic element; 8. Second Three gears; 9, the second gear shaft; 10, the second gear; 11, the circular standard gear; 12, the fourth gear shaft; 13, the first synchronous connecting rod; 14, the second synchronous connecting rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in Figures 1-4, a gear-based spiral multi-layer curve reading system according to an embodiment of the present invention includes a first gear 2 meshing with a spiral multi-layer curve gear 1, and the first A gear 2 is rotatably arranged on the first gear shaft 3, the first gear shaft 3 is hinged to one end of the first connecting rod 4, and the other end of the first connecting rod 4 is hinged to one end of the second connecting rod 5, The other end of the second connecting rod 5 is hinged with a third gear shaft 6, the first gear shaft 3 can slide relative to the third gear shaft 6, and the first gear shaft 3 and the third gear shaft 6 is provided with an elastic element 7, the third gear shaft 6 is rotatably provided with a third gear 8, and the hinge of the first connecting rod 4 and the second connecting rod 5 is provided with a second gear shaft 9, the second gear shaft 9 is rotatably provided with a second gear 10, the first gear 2, the second gear 10 and the third gear 8 are sequentially connected by a synchronous mechanism, the The third gear 8 is engaged with a circular standard gear 11 , and the circular standard gear 11 is rotatably arranged on the fourth gear shaft 12 .

In a specific embodiment of the present invention, the pitch circle diameter of the first gear 2 is much smaller than the pitch circle diameter of any curve section on the spiral multi-layer curve gear 1 .

In a specific embodiment of the present utility model, the elastic element 7 is a spring.

In a specific embodiment of the present utility model, the synchronization mechanism includes a first synchronization link 13 and a second synchronization link 14 . Alternatively, the synchronous mechanism is a synchronous belt.

In a specific embodiment of the present utility model, the first gear 2 is hinged to one end of the first synchronous link 13, and the other end of the first synchronous link 13 is hinged to the second gear 10, the The second gear 10 is hinged to one end of the second synchronous link 14 , and the other end of the second synchronous link 14 is hinged to the third gear 8 .

In a specific embodiment of the present utility model, the number of the first synchronous connecting rod 13 and the second synchronous connecting rod 14 are both two, and one end surface of the second gear 10 is respectively hinged to a The first synchronous connecting rod 13 and the second synchronous connecting rod 14, the other end surface of the second gear 10 is hinged to the other first synchronous connecting rod 13 and the second synchronous connecting rod 14 respectively. Two synchronous connecting rods 14.

In order to facilitate the understanding of the above-mentioned technical solution of the present utility model, the above-mentioned technical solution of the present utility model will be described in detail below through specific usage modes.

The fixed connection mode described in the utility model can adopt conventional technical means such as welding and bolt connection.

The first gear shaft 3 and the third gear shaft 6 are located on the same horizontal line. Since the pitch circle diameters of each curve segment on the spiral multi-layer curve gear 1 are different, when the spiral multi-layer curve gear 1 meshes with the first gear 2 , the first gear 2 will drive the first gear shaft 3 to move horizontally. In order to ensure that the first gear 2 and the helical multi-layer curve gear 1 are always in meshing state, a spring is set between the first gear shaft 3 and the third gear shaft 6. The element 7, the elastic element 7 always gives the first gear shaft 3 a force to move towards the direction of the helical multi-layer curve gear 1 . The elastic element 7 can be a spring, or other elastic materials.

The spiral multi-layer curved gear 1 is equipped with a lifting mechanism. When it rotates around the output shaft, the spiral multi-layer curved gear 1 moves along the axis of the output shaft. The spiral multi-layer curved gear 1 is connected to the output shaft through splines and keyways , the output shaft is connected with the power unit, the lifting mechanism can be a slide rail and a slider, the spiral multi-layer curve gear 1, the output shaft, and the power unit are all located on the slider, the slider can slide freely on the slide rail, and the lifting mechanism can also It can be a screw thread arranged on the output shaft, and the output shaft is connected with the frame by screw threads. When the output shaft rotates under the action of the power device, the output shaft moves axially, and then drives the spiral multi-layer curved gear 1 to rotate and move axially. On the output shaft The pitch of the thread should be the same as the pitch of the helical multilayer structure on the helical multilayer curve gear 1, so as to ensure the consistency of the rising speed of the two.

The first gear 2 and the first synchronizing link 13 can be directly hinged together through a pin shaft, or a synchronizing wheel can be coaxially fixed on the first gear 2, and the synchronizing wheel is hinged with the first synchronizing link 13 through a pin shaft together. The connection modes between the second gear 10 and the first synchronizing link 13, between the second gear 10 and the second synchronizing link 14, between the third gear 8 and the second synchronizing link 14 are all the same as above, I won't repeat them here.

The working principle is: the spiral multi-layer curve gear 1 rotates at a constant angular velocity under the action of the output shaft and the power device, and moves axially; the first gear 2 meshes with the spiral multi-layer curve gear 1, and the first gear 2 is subjected to Influenced by the irregular change of the diameter of the indexing circle at the point of contact with the spiral multi-layer curved gear 1, the first gear shaft 3 moves back and forth horizontally, and at the same time, the first gear 2 is indexed at the point of contact with the spiral multi-layer curved gear 1 Influenced by the irregular change of circle diameter, the rotational motion with irregular angular velocity changes; the first gear 2 drives the second gear 10 to perform the same rotational motion with irregular angular velocity through the synchronous mechanism; the second gear 10 drives the third gear through the synchronous mechanism 8 makes the same rotational movement with irregular angular velocity, and the third gear 8 meshes with the circular standard gear 11, so the circular standard gear 11 also performs rotational movement with irregular angular velocity and outputs the angular velocity.

To sum up, with the help of the technical solution of the present invention, the structure is simple, the production cost is low, and the angular velocity change of the spiral multi-layer curved gear can be read and output through the circular standard gear.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in the utility model. within the scope of the new protection.

Claims (7)

1. one kind based on gear-driven spiral multilayer curve read system, which is characterized in that including with spiral multilayer curve tooth Wheel（1）The first gear being meshed（2）, the first gear（2）It is spindle rotationally arranged in first gear axis（3）On, described One gear shaft（3）Hinged first connecting rod（4）One end, the first connecting rod（4）The hinged second connecting rod of the other end（5）One End, the second connecting rod（5）The other end be hinged with third gear shaft（6）, the first gear axis（3）It can the relatively described third Gear shaft（6）Sliding, the first gear axis（3）With the third gear shaft（6）Between be arranged and have elastic component（7）, described Third gear shaft（6）On be rotatably provided with third gear（8）, the first connecting rod（4）With the second connecting rod（5）Hinge The place of connecing is provided with second gear axis（9）, the second gear axis（9）On be rotatably provided with second gear（10）, described One gear（2）, the second gear（10）With the third gear（8）It is sequentially connected with by synchronization mechanism, the third gear （8）Engagement is connected with round master gear（11）, the circle master gear（11）It is spindle rotationally arranged in the 4th gear shaft （12）On.

2. according to claim 1 read system based on gear-driven spiral multilayer curve, which is characterized in that described the One gear（2）Reference diameter be much smaller than the spiral multilayer curved tooth cylindrical gear（1）The reference diameter of upper any one curved section.

3. according to claim 1 read system based on gear-driven spiral multilayer curve, which is characterized in that the bullet Property element（7）For spring.

4. according to claim 1 read system based on gear-driven spiral multilayer curve, which is characterized in that described same Step mechanism is synchronous belt.

5. according to claim 1 read system based on gear-driven spiral multilayer curve, which is characterized in that described same Walking mechanism includes the first synchronising (connecting) rod（13）With the second synchronising (connecting) rod（14）.

6. according to claim 5 read system based on gear-driven spiral multilayer curve, which is characterized in that described the One gear（2）Hinged first synchronising (connecting) rod（13）One end, first synchronising (connecting) rod（13）The other end it is hingedly described Second gear（10）, the second gear（10）Hinged second synchronising (connecting) rod（14）One end, second synchronising (connecting) rod （14）The hinged third gear of the other end（8）.

7. according to claim 6 read system based on gear-driven spiral multilayer curve, which is characterized in that described the One synchronising (connecting) rod（13）With second synchronising (connecting) rod（14）Quantity be two, the second gear（10）An end face On be respectively articulated with first synchronising (connecting) rod（13）With second synchronising (connecting) rod（14）, the second gear（10） Another end face on be respectively articulated with another first synchronising (connecting) rod（13）With another second synchronising (connecting) rod（14）.