Gear structure of transmission

Abstract

The utility model discloses a gear structure of a speed changer, which relates to the technical field of speed changers, and comprises an output shaft and a driven shaft which are distributed in parallel, the output shaft and the driven shaft are connected through the same support structure, and the support structure is telescopic and movable. The supporting structure comprises a first connecting frame and a second connecting frame which are arranged on the output shaft and the driven shaft respectively, supporting legs of the first connecting frame and the second connecting frame are opposite, a pair of pressing rods are arranged on the first connecting frame, and a pair of containing rods capable of containing the bottom ends of the pressing rods respectively are arranged on the second connecting frame. The same supporting structure is arranged on the output shaft and the driven shaft, the supporting structure can move in a telescopic mode, buffer and offset impact force, damage of the impact force to the output shaft and the driven shaft is reduced, and deformation damage of a gear structure is reduced. Damage to gear structures arranged on the output shaft and the driven shaft is reduced. Meanwhile, the phenomenon that the pressing rod moves excessively under the action of external force can be effectively avoided, and then pressure damage of the pressure spring is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transmissions, in particular to a gear structure of a transmission. Background Art

[0002] The transmission is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or divided manner. The transmission consists of a speed transmission mechanism and an operating mechanism. Some cars also have a power output mechanism. Most transmission mechanisms use ordinary gears, and some use planetary gears. The umbrella-shaped transmission is a continuously variable transmission. Its working principle is to replace the traditional solid conical pulley with an umbrella-shaped pulley, which greatly reduces the weight of the transmission, makes the transmission structure more compact, and has a significant lightweight effect. The speed regulating device uses a combination of two speed regulating rods and a lead screw nut to form a scissor-type translation speed regulating method. By adjusting the working diameter of the umbrella-shaped pulley, the transmission ratio can be continuously changed.

[0003] In the existing transmission, during operation, the rotatable shaft is provided with gear structures that can mesh and rotate with each other. When the shaft is subjected to external impact, the gear structure connected to it is easily affected by the impact force and causes collision. The collision force easily causes non-matching friction and collision of the gears, which is easy to cause gear damage in the subsequent working process of the gears, affecting the normal meshing and rotation of the transmission. Utility Model Content

[0004] In response to the above problems, the present application provides a gear structure of a transmission.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a gear structure of a transmission, comprising an output shaft and a driven shaft distributed in parallel, wherein the output shaft and the driven shaft are connected via the same supporting structure, and the supporting structure is retractable and movable.

[0006] The support structure includes a first connecting frame and a second connecting frame respectively arranged on the output shaft and the driven shaft, the supporting feet of the first connecting frame and the second connecting frame are opposite, the first connecting frame is provided with a pair of pressure rods, and the second connecting frame is provided with a pair of accommodating rods which can respectively accommodate the bottom ends of the pressure rods.

[0007] Furthermore, the bottom end of the pressure rod is threadedly connected with a connecting ring, and the connecting ring is provided with a pressure spring, and one end of the pressure spring away from the connecting ring is arranged on the inner bottom wall of the accommodating rod.

[0008] Furthermore, the accommodating rod is in a truncated cone structure, and the pressing rod is in a conical structure. When the pressing rod is lowered to a certain extent, the pressing rod abuts against the opening of the accommodating rod.

[0009] Furthermore, the output shaft and the driven shaft are respectively provided with a driving gear and a driven gear, and the driving gear and the driven gear are meshingly connected.

[0010] Furthermore, the driven shaft is provided with a linkage bevel gear coaxially distributed with the driven gear, the linkage bevel gear is meshingly connected with a driving gear coaxially distributed with the driven gear, and the driving gear is provided with an input shaft.

[0011] Furthermore, the first connecting frame and the second connecting frame are both provided with shaft sleeves, and the shaft sleeves distributed from top to bottom are respectively provided on the surfaces of the output shaft and the driven shaft.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] The utility model has a same support structure on the output shaft and the driven shaft, and the support structure is retractable and movable to buffer and offset the impact force, reduce the damage caused by the impact force to the output shaft and the driven shaft, and reduce the deformation damage of the gear structure. Reduce the damage to the gear structure on the output shaft and the driven shaft. At the same time, it can effectively avoid the phenomenon of excessive movement of the pressure rod under the action of external force, thereby effectively avoiding the pressure damage of the pressure spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle.

[0017] Figure 3 It is a schematic diagram of the connection structure of the first connecting frame and the second connecting frame of the utility model.

[0018] Figure 4 It is a schematic diagram of the structure of the accommodating rod after being cut open.

[0019] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1, output shaft; 2, driven shaft; 3, driving gear; 4, driven gear; 5, first connecting frame; 6, second connecting frame; 7, linkage bevel gear; 8, driving gear; 9, input shaft; 10, accommodating rod; 11, pressure rod; 12, connecting ring; 13, pressure spring; 14, shaft sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example: Reference Figure 1-4 The gear structure of a transmission shown includes an output shaft 1 and a driven shaft 2 distributed in parallel. The output shaft 1 and the driven shaft 2 are connected by the same supporting structure. When the output shaft 1 and the driven shaft 2 are impacted by external force, the supporting structure can be retracted and moved to buffer the external impact force, reduce the collision force between the gear structures, and reduce the damage to the gear structures arranged on the output shaft 1 and the driven shaft 2.

[0023] The supporting structure includes a first connecting frame 5 and a second connecting frame 6 respectively arranged on the output shaft 1 and the driven shaft 2, the legs of the first connecting frame 5 and the second connecting frame 6 are opposite, a pair of pressure rods 11 are arranged on the first connecting frame 5, and a pair of accommodating rods 10 are arranged on the second connecting frame 6 to accommodate the bottom ends of the pressure rods 11. In a natural state, the pressure rods 11 and the accommodating rods 10 can respectively support the first connecting frame 5 and the second connecting frame 6 to maintain the stability of the first connecting frame 5 and the second connecting frame 6.

[0024] The bottom end of the pressure rod 11 is threadedly connected with a connecting ring 12, and a pressure spring 13 is provided on the connecting ring 12. The end of the pressure spring 13 away from the connecting ring 12 is arranged on the inner bottom wall of the accommodating rod 10. When the output shaft 1 and the driven shaft 2 are displaced under the impact of external force, the first connecting frame 5 and the second connecting frame 6 can be displaced synchronously, and the pressure spring 13 arranged on the connecting ring 12 can be deformed accordingly, and then reset, so as to make the pressure rod 11 and the accommodating rod 10 reset. In the process, the impact force can be effectively offset, and the damage caused by the impact force to the output shaft 1 and the driven shaft 2 can be reduced, thereby reducing the harm caused by the impact force and reducing the deformation damage of the gear structure.

[0025] like Figure 4 , Figure 5As shown, the accommodating rod 10 is a truncated cone structure, and the pressure rod 11 is a conical structure. When the pressure rod 11 is lowered to a certain extent, the pressure rod 11 abuts against the opening of the accommodating rod 10. Therefore, the accommodating rod 10 has an intercepting effect on the pressure rod 11, which can effectively prevent the pressure rod 11 from moving excessively under the action of external force, thereby effectively avoiding pressure damage to the pressure spring 13, and maintaining the stability of the first connecting frame 5 and the second connecting frame 6.

[0026] like Figure 1 As shown, the output shaft 1 and the driven shaft 2 are respectively provided with a driving gear 3 and a driven gear 4, and the driving gear 3 and the driven gear 4 are meshed and connected. When the driven gear 4 rotates, the driving gear 3 meshed therewith also rotates synchronously, so the output shaft 1 and the driven shaft 2 can rotate synchronously and in opposite directions.

[0027] like Figure 1 As shown, the driven shaft 2 is provided with a linkage bevel gear 7 coaxially distributed with the driven gear 4, and the linkage bevel gear 7 is meshedly connected with a driving gear 8 coaxially distributed with the linkage bevel gear 7, and the driving gear 8 is provided with an input shaft 9. When the input shaft 9 rotates, the driving gear 8 meshes with the linkage bevel gear 7 to rotate. Since the linkage bevel gear 7 and the driven gear 4 are arranged on the same driven shaft 2, and the diameters of the linkage bevel gear 7 and the driven gear 4 are different, under the meshing force of the driven gear 4 and the driving gear 3, the driven shaft 2 arranged on the driving gear 3 rotates synchronously to achieve a speed change effect and realize power output.

[0028] like Figure 1 As shown, in order to prevent the first connecting frame 5 and the second connecting frame 6 from affecting the normal rotation of the output shaft 1 and the driven shaft 2, the first connecting frame 5 and the second connecting frame 6 are provided with shaft sleeves 14, and the shaft sleeves 14 distributed from top to bottom are respectively arranged on the surfaces of the output shaft 1 and the driven shaft 2.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear structure of a transmission, characterized in that: It comprises an output shaft (1) and a driven shaft (2) which are distributed in parallel, wherein the output shaft (1) and the driven shaft (2) are connected via a same supporting structure, and the supporting structure is telescopically movable; The support structure comprises a first connecting frame (5) and a second connecting frame (6) which are respectively arranged on the output shaft (1) and the driven shaft (2); the supporting feet of the first connecting frame (5) and the second connecting frame (6) are opposite to each other; the first connecting frame (5) is provided with a pair of pressure rods (11); and the second connecting frame (6) is provided with a pair of accommodating rods (10) which can respectively accommodate the bottom ends of the pressure rods (11).

2. The gear structure of the transmission according to claim 1, characterized in that: The bottom end of the pressure rod (11) is threadedly connected to a connecting ring (12), and a pressure spring (13) is provided on the connecting ring (12). The end of the pressure spring (13) away from the connecting ring (12) is arranged on the inner bottom wall of the accommodating rod (10).

3. The gear structure of the transmission according to claim 1, characterized in that: The accommodating rod (10) is in a truncated cone structure, and the pressing rod (11) is in a conical structure. When the pressing rod (11) is lowered to a certain extent, the pressing rod (11) abuts against the opening of the accommodating rod (10).

4. The gear structure of the transmission according to claim 1, characterized in that: The output shaft (1) and the driven shaft (2) are respectively provided with a driving gear (3) and a driven gear (4), and the driving gear (3) and the driven gear (4) are meshingly connected.

5. The gear structure of the transmission according to claim 4, characterized in that: The driven shaft (2) is provided with a linkage bevel gear (7) coaxially distributed with the driven gear (4); the linkage bevel gear (7) is meshingly connected with a driving gear (8) coaxially distributed with the linkage bevel gear (7); and the driving gear (8) is provided with an input shaft (9).

6. The gear structure of the transmission according to claim 1, characterized in that: The first connecting frame (5) and the second connecting frame (6) are both provided with shaft sleeves (14), and the shaft sleeves (14) are arranged from top to bottom on the surfaces of the output shaft (1) and the driven shaft (2), respectively.

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