All-terrain vehicle electronic gear shifting system with manual maintenance structure

Abstract

The invention discloses an all-terrain vehicle electronic gear shifting system with a manual maintenance structure, which comprises a gearbox assembly, a guide rod assembly, a speed change drum assembly and a gear shifting assembly, the gearbox assembly comprises a gearbox body and a gearbox cover, the gearbox cover is detachably connected with the gearbox body, a main shaft and an auxiliary shaft are arranged in the gearbox body, and the main shaft and the auxiliary shaft are connected with the gear shifting assembly. A high-speed driving gear and a low-speed driving gear are arranged on the main shaft, a low-speed driven gear, a switching disc and a high-speed driven gear are arranged on the auxiliary shaft, the gear shifting assembly comprises an electric push rod, the electric push rod comprises a motor, an outer cylinder and an inner rod, a rotatable switching rod is arranged at the tail end of the inner rod, and a switching driving gear is arranged at the tail end of the switching rod. And the switching driving gear is matched with the switching driven gear. The all-terrain vehicle electronic gear shifting system with the manual maintenance structure is compact in structure, stable and reliable. In addition, even if the electronic gear shifting system fails, the gear can be manually switched after the seat is opened, the maintenance is convenient and fast, and the reliability of the whole electronic gear shifting system is improved.

Description

Technical Field

[0001] The invention relates to an electronic gear shifting system, more specifically, to an all-terrain vehicle electronic gear shifting system with a manual maintenance structure. Background Art

[0002] Electric motors are replacing engines in ATV / UTV and other all-terrain vehicles, and are increasingly being used. Traditional electric ATV / UTVs perform well on flat roads, but are somewhat powerless in harsh conditions such as climbing and off-road escape. The control system of the drive motor alone cannot fully handle the switching between high speed and high torque. In this case, a gearbox with optional multi-speed ratios can allow the vehicle to better cope with multiple complex road conditions. Many gearbox shifting systems with multiple speed ratios on the market are purely mechanical structures, and some are electrically controlled shifting structures. However, if the shifting system of the electrically controlled structure fails, the vehicle will no longer be able to perform any shifting operations, causing the vehicle to be paralyzed and unable to be repaired in time. Summary of the invention

[0003] Based on this, it is necessary to provide an all-terrain vehicle electronic shifting system with a manual maintenance structure to address the above technical problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: An all-terrain vehicle electronic shifting system with a manual maintenance structure, characterized in that the all-terrain vehicle electronic shifting system with a manual maintenance structure comprises a gearbox assembly, a guide rod assembly, a speed change drum assembly and a shift assembly. The gearbox assembly comprises a gearbox case and a gearbox case cover, wherein the gearbox case cover is detachably connected to the gearbox case, wherein a main shaft and a secondary shaft are arranged in the gearbox case, wherein a high-speed driving gear and a low-speed driving gear are arranged on the main shaft, and a low-speed driven gear, a switching plate and a high-speed driven gear are arranged on the secondary shaft, wherein the switching plate is located between the low-speed driven gear and the high-speed driven gear. The guide rod assembly comprises a guide rod, a shift fork is arranged on the guide rod, a push rod is arranged on the shift fork, and the shift fork cooperates with the switching disk. The speed change drum assembly comprises a speed change drum, a side wall of which is provided with a curved groove, the curved groove matches with the push rod, and one end of the speed change drum is provided with a switching driven gear. The shift assembly comprises an electric push rod, which comprises a motor, an outer tube and an inner rod. A rotatable switching rod is provided at the end of the inner rod, and a switching driving gear is provided at the end of the switching rod. The switching driving gear cooperates with the switching driven gear.

[0005] As a preferred embodiment of the present invention, the shift assembly further comprises a bracket, and the electric push rod is rotatably mounted on the bracket.

[0006] As a preferred embodiment of the present invention, the switching lever is connected to the inner rod through a pin rod and a cotter pin.

[0007] As a preferred embodiment of the present invention, the central rotating shaft of the switching driving gear is arranged on the gearbox housing.

[0008] As a preferred embodiment of the present invention, a manual operating component is provided on the gearbox housing, and the manual operating component includes a rotating head, a positioning bearing and an oil seal. The rotating head includes a rotating rod body, a rotating tooth head is provided at the tail of the rotating rod body, and a rotating disk head is provided at the head of the rotating rod body. The rotating tooth head cooperates with the end bevel gear of the speed change drum, the positioning bearing and the oil seal are located on the gearbox housing, and the rotating rod body passes through the positioning bearing and the oil seal.

[0009] As a preferred embodiment of the present invention, the manual operation component is located below the vehicle seat.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an all-terrain vehicle electronic shift system with a manual maintenance structure. The all-terrain vehicle electronic shift system with a manual maintenance structure has a compact structure, is stable and reliable, and has a more reasonable vehicle space layout and a stronger sense of operation for the driver compared to the traditional mechanical shift mode. In addition, even if the electronic shift system fails, the seat can be opened to manually switch the gear position, which is convenient and quick to maintain, thereby improving the reliability of the entire electronic shift system. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a schematic diagram of the structure decomposition of the electronic shifting system for an all-terrain vehicle of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of a shift assembly of an electronic shift system; Figure 3 It is a three-dimensional structural schematic diagram of the electronic shifting system for an all-terrain vehicle of the present invention; Figure 4 for Figure 3An enlarged schematic diagram of the A region in FIG. Figure 5 for Figure 3 A schematic diagram of the structure of the manual operation component in FIG. Figure 6 It is a working schematic diagram of the shift assembly of the electronic shift system of the present invention; The markings in the figure are as follows: 1. Gearbox housing; 10. Guide rod; 11. Speed ​​change drum; 111. Curved groove; 112. End bevel gear; 12. Switching driven gear; 13. Switching driving gear; 131. Central rotating shaft; 14. Switching rod; 15. Electric push rod; 151. Motor; 152. Outer cylinder; 153. Inner rod; 16. Bracket; 17. Countershaft; 18. Rotating head; 181. Rotating rod body; 182. Rotating gear head; 183 , rotating disk head; 18S, locating bearing; 19, oil seal; 2, gearbox cover; 20, cotter pin; 20S, pin rod; 3, main shaft; 4, high-speed driving gear; 5, low-speed driving gear; 6, low-speed driven gear; 7, high-speed driven gear; 8, switching plate; 9, shift fork; 91, push rod; S1, gearbox assembly; S2, guide rod assembly; S3, speed change drum assembly; S4, shift assembly; S5, manual operation assembly. DETAILED DESCRIPTION

[0013] In order to enable those skilled in the art to better understand the solutions of the present invention, 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.

[0014] like Figure 1 As shown, the electronic shifting system for an all-terrain vehicle includes a transmission assembly S1, a guide rod assembly S2, a shift drum assembly S3 and a shift assembly S4.

[0015] The gearbox assembly S1 includes a gearbox case 1 and a gearbox case cover 2, the gearbox case cover 2 is detachably connected to the gearbox case 1, a main shaft 3 and a secondary shaft 17 are arranged in the gearbox case 1, a high-speed driving gear 4 and a low-speed driving gear 5 are arranged on the main shaft 3, a low-speed driven gear 6, a switching disk 8 and a high-speed driven gear 7 are arranged on the secondary shaft 17, and the switching disk 8 is located between the low-speed driven gear 6 and the high-speed driven gear 7.

[0016] The guide rod assembly S2 includes a guide rod 10 , a shift fork 9 is disposed on the guide rod 10 , a push rod 91 is disposed on the shift fork 9 , and the shift fork 9 cooperates with the switching disk 8 .

[0017] The speed-shift drum assembly S3 includes a speed-shift drum 11 . A curved groove 111 is provided on the side wall of the speed-shift drum 11 . The curved groove 111 matches with the push rod 91 . A switching driven gear 12 is provided at one end of the speed-shift drum 11 .

[0018] like Figure 2 As shown, the shift assembly S4 includes an electric push rod 15, which includes a motor 151, an outer cylinder 152 and an inner rod 153. A rotatable switching rod 14 is provided at the end of the inner rod 153, and a switching driving gear 13 is provided at the end of the switching rod 14. The switching driving gear 13 cooperates with the switching driven gear 12. It should be noted that the switching rod 14 is connected to the inner rod 153 through a pin rod 20S and a cotter pin 20.

[0019] It should be noted that the central rotating shaft 131 of the switching driving gear 13 is arranged on the transmission case 1 .

[0020] In addition, the shift assembly S4 further includes a bracket 16 , and the electric push rod 15 is rotatably mounted on the bracket 16 .

[0021] like Figure 3 , Figure 4 and Figure 5 As shown, the gearbox housing 1 is provided with a manual operating component S5 , which includes a rotating head 18 , a positioning bearing 18S and an oil seal 19 .

[0022] The rotating head 18 comprises a rotating rod body 181, a rotating tooth head 182 is provided at the tail of the rotating rod body 181, and a rotating disc head 183 is provided at the head of the rotating rod body 181. The rotating tooth head 182 cooperates with the end bevel gear 112 of the speed change drum 11, the locating bearing 18S and the oil seal 19 are located on the gearbox housing 1, and the rotating rod body 181 penetrates the locating bearing 18S and the oil seal 19.

[0023] The shifting process of the electronic shifting system for the all-terrain vehicle is described below.

[0024] The gear positions of the gearbox include high gear H, low gear L, neutral gear N and reverse gear R, among which neutral gear N and reverse gear R are achieved by controlling the drive motor, while high gear H and low gear L are achieved by the electronic shifting system.

[0025] When the vehicle is stopped, the driver switches gears by pressing the corresponding buttons on the operation panel. When the vehicle is switched to neutral gear N, the motor controller disconnects the power input of the drive motor and the vehicle enters the neutral gear N state. Similarly, when the vehicle is switched to reverse gear R, the motor controller gives a signal to reverse the drive motor and the vehicle enters the reverse gear R state.

[0026] When it is necessary to switch to high speed gear H or low speed gear L, it needs to be done through the electronic gear shifting system. When the corresponding gear button is pressed, the inner rod 153 of the electric push rod 15 will extend or shorten, such as Figure 6As shown, the switching lever 14 rotates, and the switching driving gear 13 rotates synchronously. At the same time, the switching driving gear 13 drives the switching driven gear 12, so that the switching driven gear 12 rotates. Then, the switching driven gear 12 drives the speed change drum 11 to rotate.

[0027] By using the coordination between the curved groove 111 and the push rod 91, the rotation of the speed change drum 11 drives the shift fork 9, so that the shift fork 9 moves left and right on the guide rod 10, and the switching plate 8 is nested in the shift fork 9, so that the switching plate 8 moves synchronously with the shift fork 9. Finally, the claw of the switching plate 8 meshes with the claw of the low-speed driven gear 6 or the high-speed driven gear 7, and transmits power to the corresponding high-speed driving gear 4 or low-speed driving gear 5, thereby completing the switching of the low-speed gear L or the high-speed gear H.

[0028] It should be noted that there is a spring inside the switch plate 8. If, when shifting gears, the claws of the switch plate 8 and the claws of the low-speed driven gear 6 or the high-speed driven gear 7 press against each other instead of engaging with each other, the switch plate 8 is forced to contract inward. When power is input, its claws will be offset as the secondary shaft 17 rotates, and the switch plate 8 is pushed out by the spring to engage with the claws of the corresponding gear.

[0029] The following describes how to use the manual operation component S5.

[0030] If the electronic shifting fails, for example, the electric push rod 15 fails or the control system fails, the user can open the seat to operate the manual operation component S5.

[0031] First, the user gently pulls open the R-shaped cotter pin 20 to disconnect the electric push rod 15, and then turns the knob head 18. The rotating tooth head 182 on the knob head 18 drives the speed change drum 11 to rotate, and then drives the shift fork 9 and the switching plate group 8 to move, so as to achieve the purpose of shifting gears and restore the vehicle to a drivable state. In addition, the number of teeth of the rotating tooth head 182 is about 1 / 3 of the end bevel gear 112, so that the user only needs a small operating force to operate the rotating head 18 to shift gears, avoiding the situation where the vehicle is paralyzed due to the failure of the electronic shift system.

[0032] Of course, a tool may be used to operate the rotating head 18 , or a separate motor may be used to drive the rotating head 18 .

[0033] The electronic shift system of the all-terrain vehicle has a compact structure, stable and reliable. Compared with the traditional mechanical shift mode, the vehicle space layout is more reasonable and the driver's operating sense is stronger. In addition, even if the electronic shift system fails, the seat can be opened and the gear can be switched manually, which is convenient and quick to maintain, and improves the reliability of the entire electronic shift system.

[0034] Obviously, the embodiments described above are only part of the embodiments of the present application, rather than all the embodiments. The drawings provide preferred embodiments of the present application, but do not limit the patent scope of the present application.

Claims

1. An all-terrain vehicle electronic shift system with a manual maintenance structure, characterized in that: The all-terrain vehicle electronic shifting system with a manual maintenance structure comprises a transmission assembly (S1), a guide rod assembly (S2), a shift drum assembly (S3) and a shift assembly (S4). The gearbox assembly (S1) comprises a gearbox housing (1) and a gearbox housing cover (2), wherein the gearbox housing cover (2) is detachably connected to the gearbox housing (1), wherein a main shaft (3) and a secondary shaft (17) are provided in the gearbox housing (1), wherein a high-speed driving gear (4) and a low-speed driving gear (5) are provided on the main shaft (3), and wherein a low-speed driven gear (6), a switching plate (8) and a high-speed driven gear (7) are provided on the secondary shaft (17), wherein the switching plate (8) is located between the low-speed driven gear (6) and the high-speed driven gear (7). The guide rod assembly (S2) comprises a guide rod (10), a shift fork (9) is provided on the guide rod (10), a push rod (91) is provided on the shift fork (9), and the shift fork (9) cooperates with the switching disk (8). The speed change drum assembly (S3) comprises a speed change drum (11), a side wall of the speed change drum (11) is provided with a curved groove (111), the curved groove (111) cooperates with the push rod (91), and one end of the speed change drum (11) is provided with a switching driven gear (12). The shift assembly (S4) comprises an electric push rod (15), the electric push rod (15) comprises a motor (151), an outer cylinder (152) and an inner rod (153), a rotatable switching rod (14) is provided at the end of the inner rod (153), a switching driving gear (13) is provided at the end of the switching rod (14), and the switching driving gear (13) cooperates with the switching driven gear (12).

2. The electronic shifting system for an all-terrain vehicle with a manual maintenance structure according to claim 1, characterized in that: The shift assembly (S4) further comprises a bracket (16), and the electric push rod (15) is rotatably mounted on the bracket (16).

3. The electronic shifting system for an all-terrain vehicle with a manual maintenance structure according to claim 1, characterized in that: The switching rod (14) is connected to the inner rod (153) via a pin rod (20S) and a cotter pin (20).

4. The electronic shifting system for an all-terrain vehicle with a manual maintenance structure according to claim 1, characterized in that: The central rotating shaft (131) of the switching driving gear (13) is arranged on the gearbox housing (1).

5. The electronic shifting system for an all-terrain vehicle with a manual maintenance structure according to claim 1, characterized in that: The gearbox housing (1) is provided with a manual operating assembly (S5), the manual operating assembly (S5) comprising a rotating head (18), a positioning bearing (18S) and an oil seal (19), the rotating head (18) comprising a rotating rod body (181), the tail of the rotating rod body (181) being provided with a rotating tooth head (182), the head of the rotating rod body (181) being provided with a rotating disk head (183), the rotating tooth head (182) being matched with the end bevel gear (112) of the speed change drum (11), the positioning bearing (18S) and the oil seal (19) being located on the gearbox housing (1), and the rotating rod body (181) passing through the positioning bearing (18S) and the oil seal (19).

6. The electronic shifting system for an all-terrain vehicle with a manual maintenance structure according to claim 5, characterized in that: The manual operation component (S5) is located below the vehicle seat.

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