Electric auxiliary steering device of all-terrain vehicle

Abstract

The utility model relates to an electric auxiliary steering device of an all-terrain vehicle. The all-terrain vehicle is provided with a frame unit and a power unit. The frame unit is provided with a pair of upper side pipe and lower side pipe, the upper side pipe is provided with a downcomer part, and the lower end of the downcomer part is connected with the lower side pipe; the frame unit is provided with a steering mechanism; the steering mechanism is provided with an electric auxiliary steering device, and the electric auxiliary steering device is provided with a controller body and an electric motor capable of controlling the controller body to operate. The controller body is provided with an upper shaft connected with a steering shaft rod and a lower shaft connected with a steering arm. The electric motor is arranged towards the front of the vehicle body, is slightly horizontal to the center line of the vehicle body and is positioned between the pair of left and right upper side pipes from the overlook view of the vehicle body; from the side view of the vehicle body, the electric motor is located towards the front of the vehicle body in an area surrounded by the steering shaft, the upper side pipe and the lower side pipe, and is adjacent to the upper side pipe; therefore, the electric motor is prevented from being influenced by high temperature of the exhaust device; the lower pipe, the upper pipe, and the downcomer section protect the electric motor of the electric power assisted steering device.

Description

Technical Field

[0001] The utility model relates to an electric assisted steering device for an all-terrain vehicle, and in particular to an electric assisted steering device for an all-terrain vehicle which can prevent an electric motor from being affected by high temperature of an exhaust device. Background Art

[0002] like Figure 1 As shown, in order to improve the convenience and accuracy of steering, the all-terrain vehicle 1 is equipped with an electric power-assisted steering device 12 on the steering mechanism 11. The electric power-assisted steering device 12 has a controller body 121 and an electric motor 122 that can drive the controller body 121 to operate. The electric motor 122 is arranged at a position of the controller body 121 toward the rear of the vehicle body, that is, the electric motor 122 is close to the power unit 13 of the all-terrain vehicle 1, especially close to the exhaust device 131 of the power unit 13. As is well known, the exhaust device 131 of the internal combustion power unit 13 131 is used to discharge high-temperature exhaust gas after the power unit 13 is burned and exploded. Therefore, when the all-terrain vehicle 1 is running, the exhaust device 131 will be in an extremely high temperature state. Therefore, when the electric motor 122 is close to the exhaust device 131, the high temperature of the exhaust device 131 will affect the normal operation of the electric motor 122. In serious cases, the electric motor 122 will stop working or be damaged due to heat damage, thereby causing the electric power steering device 12 to be unable to operate, and further causing the steering mechanism 11 of the all-terrain vehicle 1 to operate malfunctioning or be unable to operate, which will seriously doubt the driving safety of the all-terrain vehicle 1.

[0003] Therefore, how to provide an electric power steering device for an all-terrain vehicle to solve the problems of the existing electric power steering device of the all-terrain vehicle and avoid driving safety concerns has become an urgent issue to be solved by all-terrain vehicle manufacturers. Utility Model Content

[0004] [Problems to be Solved by the Utility Model]

[0005] The main purpose of the present invention is to provide an electric power steering device for an all-terrain vehicle, mainly to overcome the shortcomings of the conventional electric power steering device of an all-terrain vehicle, which may easily cause driving safety concerns.

[0006]

Technical means to solve the problem

[0007] To this end, the present invention provides an electric assisted steering device for an all-terrain vehicle, the all-terrain vehicle comprising at least a frame unit and a power unit arranged on the frame unit; the frame unit having at least a pair of upper and lower tubes on the left and right, the upper tube having a descending tube portion, the lower end of the descending tube portion being connected to the lower tube; the frame unit being provided with a steering mechanism having a steering shaft, a steering handle arranged at the upper end of the steering shaft, and a steering arm arranged at the lower end of the steering shaft; the steering mechanism being provided with an electric assisted steering device having a controller body and an electric motor capable of controlling the operation of the controller body; the controller body having an upper shaft connected to the steering shaft and a lower shaft connected to the steering arm; when viewed from above the vehicle body, the electric motor is arranged to face forward of the vehicle body and be slightly horizontal to the center line of the vehicle body, and is located between the pair of upper tubes on the left and right; when viewed from the side of the vehicle body, the electric motor is located in an area surrounded by the steering shaft, the upper tube and the lower tube towards the front of the vehicle body, and is adjacent to the upper tube.

[0008] To this end, some embodiments of the present invention provide an electric assisted steering device for an all-terrain vehicle, wherein the power unit has at least a cylinder block, which has a cylinder body and a cylinder head; the electric motor of the electric assisted steering device is arranged to be approximately the same height as the cylinder head.

[0009] To this end, some embodiments of the present invention provide an electric power steering device for an all-terrain vehicle, wherein the all-terrain vehicle is equipped with an anti-lock braking system below the electric power steering device, and the anti-lock braking system is located above the front wheel transmission case.

[0010] To this end, some embodiments of the present invention provide an electric power steering device for an all-terrain vehicle, wherein the anti-lock braking system partially overlaps the front wheels of the all-terrain vehicle when viewed from the side of the vehicle.

[0011] To this end, some embodiments of the present invention provide an electric assisted steering device for an all-terrain vehicle, the electric assisted steering device having an electric motor; the anti-lock braking system having a motor; when viewed from above the vehicle body, the motor of the anti-lock braking system extends toward the rear of the vehicle body and is slightly parallel to the centerline of the all-terrain vehicle body; the electric motor is arranged to face the front of the vehicle body and is slightly horizontal to the centerline of the vehicle body; the electric motor is arranged toward the front of the vehicle body, and the motor is arranged toward the rear of the vehicle body and partially overlaps with the electric motor.

[0012] To this end, some embodiments of the present invention provide an electric assisted steering device for an all-terrain vehicle, wherein the power unit further has a transmission box, which is provided with a cooling air device; the cooling air device has an air inlet pipe and an air inlet located at one end of the air inlet pipe; the air inlet pipe is arranged around the outside of the upper side pipe and is connected to the transmission box with the other end opposite to the air inlet; viewed from the side of the vehicle body, the electric assisted steering device and the air inlet pipe partially overlap.

[0013] [Effects of the utility model]

[0014] The effects that can be achieved by some embodiments of the present invention are: the electric motor can be kept away from the exhaust device of the power unit, thereby preventing the electric motor from being affected by the high temperature of the exhaust device. At the same time, when the all-terrain vehicle is driving, fresh cold air from the outside enters the vehicle body cover unit, and most of the cold air can blow towards the electric motor to dissipate heat, thereby improving the operating effect of the electric assisted steering device; the lower side tube, the upper side tube and the downtube can protect the electric motor of the electric assisted steering device to prevent ground sand and gravel from hitting the electric motor of the electric assisted steering device.

[0015] The effect that can be achieved by some embodiments of the present invention is that the electric motor of the electric power steering device can be kept at a certain height from the ground to avoid splashing of mud and impact of sand and gravel on the ground.

[0016] The effect that can be achieved by some embodiments of the present invention is that the space after the electric motor of the electric power steering device is moved upward can be fully utilized to balance the space for arranging the anti-lock braking system.

[0017] The effect that can be achieved by some embodiments of the present invention is that the anti-lock braking system can be brought closer to the brake device of the front wheel.

[0018] The effects that can be achieved by some embodiments of the present invention are: the electric motor of the electric power steering device and the anti-lock braking system can be compactly arranged and the weight of the arrangements can be centralized.

[0019] The effect that can be achieved by some embodiments of the present invention is that the configuration of the electric motor of the electric power steering device can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a known all-terrain vehicle.

[0021] Figure 2 It is a schematic diagram of the all-terrain vehicle of the present utility model.

[0022] Figure 3It is a schematic side view of the all-terrain vehicle of the present invention with the vehicle body cover unit removed.

[0023] Figure 4 It is a schematic top view of the all-terrain vehicle of the present invention.

[0024] Figure 5 yes Figure 4 A partial enlargement of the front section.

[0025] Reference Signs List

[0026] 1: All-terrain vehicle

[0027] 11: Steering mechanism

[0028] 12: Electric power steering

[0029] 121: Controller body

[0030] 122: Electric motor

[0031] 13: Power unit 131: Exhaust device

[0032] 2: All-terrain vehicles

[0033] 2a: Car body centerline

[0034] 3: Frame unit

[0035] 31: Steering mechanism

[0036] 311: Steering shaft 312: Steering handle

[0037] 313: Steering arm 314: Steering rod

[0038] 32: Upper side tube

[0039] 321: Downcomer

[0040] 33: Lower side tube

[0041] 34: Front auxiliary tube group

[0042] 35: Rear auxiliary tube group

[0043] 36: Rear shelf

[0044] 37: Connecting frame

[0045] 4: Seat cushion

[0046] 5: Power unit

[0047] 51: Cylinder block

[0048] 511: Cylinder body 512: Cylinder head

[0049] 52: Transmission box

[0050] 53: Exhaust system 531: Front pipe

[0051] 54: Cooling air device

[0052] 541: Air inlet pipe 542: Air inlet

[0053] 6: Anti-lock braking system

[0054] 61: Controller 62: Motor

[0055] 7: Body cover unit

[0056] 71: Front body cover assembly

[0057] 72: Upper decorative cover group

[0058] 73: Side body cover assembly

[0059] 74: Rear body cover assembly

[0060] 8: Electric power steering

[0061] 81: Controller body

[0062] 811: Upper axis 812: Lower axis

[0063] 82: Electric motor

[0064] B: Brake device

[0065] C: shock absorber

[0066] D: Front wheel transmission case

[0067] T: fuel tank

[0068] FW: front wheel

[0069] RW: rear wheel. DETAILED DESCRIPTION

[0070] To make it easier to understand the structure and effects of the present invention, the following description is provided with reference to the accompanying drawings.

[0071] First, please refer to Figure 2 、 3 As shown, the electric power steering device for an all-terrain vehicle of the present invention comprises an all-terrain vehicle 2 comprising at least a frame unit 3, a seat cushion 4 disposed above the rear end of the frame unit 3, a fuel tank T disposed on the frame unit 3 and located behind the seat cushion 4, a power unit 5 disposed on the frame unit 3, an anti-lock braking system 6 for braking the all-terrain vehicle 2, and a vehicle body cover unit 7 disposed on the outer periphery of the frame unit 3.

[0072] like Figure 2 、 3 As shown in FIG4 , the front section of the frame unit 3 is provided with a steering mechanism 31, a pair of left and right front wheels FW pivotally arranged below the front section of the frame unit 3 and controlled by the steering mechanism 31; the frame unit 3 has at least a pair of left and right upper tubes 32, and a pair of lower tubes 33 arranged below the upper tubes 32 and corresponding to each other; wherein the upper tubes 32 have a descending tube portion 321 facing the front of the vehicle (the arrow direction in the figure is the front direction of the vehicle), the lower end of the descending tube portion 321 is connected to the lower tube 33, and the front of the upper tube 32 and the lower tube 33 (towards the front of the vehicle) There is a front auxiliary pipe group 34 connected to the two sides between the upper and lower tubes 32 and 33, respectively. The front auxiliary pipe group 34 has a pair of left and right sides, and the front auxiliary pipe group 34 is respectively connected to the down tube portion 321, the lower tube 33 and the upper tube 32; the rear end (the rear end) of the frame unit 3 is provided with a rear auxiliary pipe group 35 on both sides between the upper and lower tubes 32 and 33, respectively. The rear auxiliary pipe group 35 has a pair, and the rear auxiliary pipe group 35 is respectively connected to the upper and lower tubes 32 and 33; the rear end (the rear end) of the frame unit 3 is provided with a rear storage rack 36 on the upper tube 32; a pair of left and right ways are pivotally arranged on the frame unit 3 The rear wheel RW is located below the rear section of the frame unit 3; the steering mechanism 31 has a steering shaft 311 that can control the rotation of the front wheel FW, and an electric power steering device 8 is provided below the steering shaft 311 of the steering mechanism 31; the upper tube 32 is equipped with a shock absorber C facing the front wheel FW; the frame unit 3 is provided with a connecting frame 37 on the downtube 321 and the front auxiliary tube group 34, and the anti-lock braking system 6 is locked to the connecting frame 37; the anti-lock braking system 6 has a controller 61 and a motor 62 of a power source. The motor 62 is implemented in an integrated manner. When viewed from above the vehicle body, the motor 62 of the anti-lock braking system 6 extends toward the rear of the vehicle body and is slightly parallel to the center line 2a of the vehicle body 2; when viewed from the side of the vehicle body, the anti-lock braking system 6 is located above the front wheel transmission box D. The anti-lock braking system 6 is arranged below the electric power steering device 8 in the up and down direction of the vehicle body, and the anti-lock braking system 6 partially overlaps with the front wheel FW of the all-terrain vehicle 2, thereby allowing the anti-lock braking system 6 to be closer to the brake device B arranged on the front wheel FW.

[0073] like Figure 2 、 3As shown in Figure 5, the frame unit 3 is provided with a seat 4 for the rider to sit on above the upper side tube 32 and toward the rear of the vehicle body, and the seat 4 can be freely lifted up from the frame unit 3; the frame unit 3 is provided with the power unit 5 between the upper side tube 32 and the lower side tube 33. More specifically, the power unit 5 is located in the front and lower part of the seat 4. The power unit 5 of the utility model is illustrated by an internal combustion engine system; the power unit 5 includes a cylinder block 51 and a transmission case 52 connected to the cylinder block 51, and the cylinder block 51 is connected to an exhaust device 53 extending toward the rear of the vehicle body; the cylinder block 51 has a cylinder body 511 and a cylinder head 512; the exhaust device 53 is mainly used to discharge the exhaust gas after the fuel of the cylinder block 51 of the power unit 5 is burned and exploded; the fuel tank T for storing fuel for the cylinder block 51 of the power unit 5 is installed on the frame unit 3. The front end of the transmission case 52 of the power unit 5 is connected to a cooling air device 54; the cooling air device 54 has an air inlet pipe 541 and an air inlet 542 provided at the end of the air inlet pipe 541; one end of the air inlet pipe 541 is connected to the front end of the transmission case 52, and the other end of the air inlet pipe 541 is connected to the air inlet 542. The air inlet pipe 541 is extended toward the front of the vehicle body along the outer side of the upper tube 32 around the frame unit 3, so that The air inlet 542 is located at the front end of the frame unit 3; when the power unit 5 is in operation and the all-terrain vehicle 2 is moving, fresh cold air from the outside can be forced into the air inlet duct 541 through the air inlet 542, and is guided into the transmission box 52 through the air inlet duct 541 for cooling. The cooled hot air is then discharged from the rear end of the transmission box 52 to the outside of the transmission box 52, thereby achieving the effect of cooling and dissipating heat from the transmission box 52.

[0074] like Figure 2 As shown, the body cover unit 7 includes a front body cover group 71 arranged in front of the steering mechanism 31, an upper decorative cover group 72 arranged behind the steering mechanism 31 and located in front of the seat cushion 4, a side body cover group 73 arranged below the seat cushion 4 and located on both sides of the vehicle body, and a rear body cover group 74 located at the rear end of the frame unit 3.

[0075] like Figure 2 、 3As shown in Figures 4 and 5, the steering mechanism 31 has a steering shaft 311, a steering handle 312 provided at the upper end of the steering shaft 311, and a steering arm 313 provided at the lower end of the steering shaft 311. The steering arm 313 can drive a steering rod 314 to rotate the front wheel FW. The electric assisted steering device 8 is installed on the lower section of the steering shaft 311. The electric assisted steering device 8 has a controller body 81 and an electric motor 82 that can drive the controller body 81 to operate. The preferred embodiment of the present invention is to implement the controller body 81 and the electric motor 82 in an integrated manner. The controller body 81 has an upper shaft 811 extending out of the top of the controller body 81, and a lower shaft 812 extending out of the bottom of the controller body 81. The upper shaft 811 and the steering The electric motor 82 is connected to the shaft 311, and the lower shaft 812 is connected to the steering arm 313; the electric motor 82 is electrically connected to the battery (not shown) of the all-terrain vehicle 2 to obtain the power required for operation; when the driver wants to turn the all-terrain vehicle 2, the driver turns the steering handle 312 of the steering mechanism 31, and the steering handle 312 drives the steering shaft 311 to rotate. The rotation of the steering shaft 311 can operate the electric power-assisted steering device 8, and the electric motor 82 can operate the controller body 81 to drive the steering arm 313 with the lower shaft 812. The steering arm 313 can drive the front wheel FW to rotate via the steering rod 314, thereby making the steering action of the all-terrain vehicle 2 labor-saving and precise due to the power assistance of the electric power-assisted steering device 8.

[0076] like Figure 2 、 3As shown in Figures 4 and 5, a preferred embodiment of the electric assisted steering device 8 of the present invention is to arrange the electric motor 82 in front of the controller body 81. More specifically, the electric motor 82 is arranged further forward of the vehicle body than the controller body 81. When the electric motor 82 is arranged further forward of the vehicle body than the controller body 81, when viewed from above the vehicle body, the electric motor 82 is arranged to face the front of the vehicle body and be slightly horizontal to the center line 2a of the vehicle body, and the electric motor 82 is located between the left and right upper side tubes 32 of the frame unit 3. When viewed from the side of the vehicle body, the electric motor 82 is located in the area surrounded by the left and right lower side tubes 33 and the upper side tubes 32 and is adjacent to the upper side tubes 32. The electric motor 82 is also located behind the down tube portion 321, thereby allowing the electric motor 82 to be away from the ground. When viewed from the side of the vehicle body, the electric motor 82 is arranged with respect to the power unit 5. The cylinder head 512 of the cylinder block 51 is slightly the same height; viewed from above the vehicle body, the electric motor 82 partially overlaps with the anti-lock braking system 6, and the electric motor 82 of the electric power steering device 8 partially overlaps with the motor 62 of the anti-lock braking system 6; by arranging the electric motor 82 in the above-mentioned manner, the electric motor 82 can be kept away from the exhaust device 53 of the power unit 5, thereby preventing the electric motor 82 from being affected by the high temperature of the front pipe portion 531 of the exhaust device 53; it is worth mentioning that the lower side pipe 33, the upper side pipe 32 and the descending pipe portion 321 can form a protection for the electric motor 82 of the electric power steering device 8 to prevent ground sand and gravel from hitting the electric motor 82 of the electric power steering device 8; viewed from above the vehicle body, the electric motor 82 is arranged toward the front of the vehicle body, and the motor 62 is arranged toward the rear of the vehicle body and partially overlaps with the electric motor 82.

[0077] The main technology of the present invention is that the all-terrain vehicle 2 includes at least a frame unit 3 and a power unit 5 arranged on the frame unit 3; the frame unit 3 has at least a pair of upper tubes 32 and lower tubes 33 on the left and right, the upper tube 32 has a descending tube portion 321, and the lower end of the descending tube portion 321 is connected to the lower tube 33; the frame unit 3 is provided with a steering mechanism 31, the steering mechanism 31 has a steering shaft 311, a steering handle 312 arranged at the upper end of the steering shaft 311, and a steering arm 313 arranged at the lower end of the steering shaft 311; the steering mechanism 31 is provided with an electric auxiliary steering device 8, the electric auxiliary steering device 8 has a controller body 81 and an electric motor 82 that can control the operation of the controller body 81; the controller The device body 81 has an upper shaft 811 connected to the steering shaft 311 and a lower shaft 812 connected to the steering arm 313; when viewed from above the vehicle body, the electric motor 82 is arranged to face the front of the vehicle body and be slightly horizontal to the center line 2a of the vehicle body, and is located between the left and right pairs of upper side tubes 32; when viewed from the side of the vehicle body, the electric motor 82 is located in the area surrounded by the steering shaft 311, the upper side tube 32 and the lower side tube 33 toward the front of the vehicle body, and is away from the ground and adjacent to the upper side tube 32; thereby, the electric motor 82 can be kept away from the exhaust device 53 of the power unit 5, thereby preventing the electric motor 82 from being affected by the high temperature of the front pipe portion 531 of the exhaust device 53, thereby improving the operation effect of the electric auxiliary steering device 8.

[0078] In summary, the present invention can achieve the desired purpose and function through the aforementioned electric power-assisted steering device for an all-terrain vehicle, and thus meets the requirements of novelty, practicality, and creativity.

Claims

1. An electric power-assisted steering device for an all-terrain vehicle, characterized in that: The all-terrain vehicle includes at least a frame unit and a power unit arranged on the frame unit; the frame unit has at least a pair of upper and lower side tubes on the left and right, the upper side tube has a descending tube portion, and the lower end of the descending tube portion is connected to the lower side tube; the frame unit is provided with a steering mechanism, the steering mechanism has a steering shaft, a steering handle arranged at the upper end of the steering shaft, and a steering arm arranged at the lower end of the steering shaft; the steering mechanism is provided with an electric auxiliary steering device, the electric auxiliary steering device has a controller body and an electric motor that can control the operation of the controller body; the controller body has an upper shaft connected to the steering shaft and a lower shaft connected to the steering arm; when viewed from above the vehicle body, the electric motor is arranged to face the front of the vehicle body and slightly horizontal to the center line of the vehicle body, and is located between the pair of upper side tubes on the left and right; when viewed from the side of the vehicle body, the electric motor is located in the area surrounded by the steering shaft, the upper side tube and the lower side tube towards the front of the vehicle body, and is adjacent to the upper side tube.

2. The electric power steering device for an all-terrain vehicle according to claim 1, characterized in that: The power unit at least has a cylinder block, and the cylinder block has a cylinder body and a cylinder head; the electric motor of the electric power steering device is arranged to be approximately at the same height as the cylinder head.

3. The electric power-assisted steering device for an all-terrain vehicle according to claim 1, characterized in that: The all-terrain vehicle is equipped with an anti-lock braking system below the electric power steering device, and the anti-lock braking system is located above the front wheel transmission box.

4. The electric power-assisted steering device for an all-terrain vehicle according to claim 3, characterized in that: When viewed from the side of the vehicle body, the anti-lock braking system partially overlaps with the front wheel of the all-terrain vehicle.

5. The electric power-assisted steering device for an all-terrain vehicle according to claim 3, characterized in that: The electric power steering device has an electric motor; the anti-lock braking system has a motor; when viewed from above the vehicle body, the motor of the anti-lock braking system extends toward the rear of the vehicle body and is slightly parallel to the centerline of the all-terrain vehicle body; the electric motor is arranged to face the front of the vehicle body and is slightly horizontal to the centerline of the vehicle body; the electric motor is arranged toward the front of the vehicle body, and the motor is arranged toward the rear of the vehicle body and partially overlaps with the electric motor.

6. The electric power-assisted steering device for an all-terrain vehicle according to claim 1, wherein: The power unit also has a transmission box, which is provided with a cooling air device; the cooling air device has an air inlet pipe and an air inlet provided at one end of the air inlet pipe; the air inlet pipe is arranged around the outside of the upper side pipe and is connected to the transmission box at the other end relative to the air inlet; viewed from the side of the vehicle body, the electric assisted steering device and the air inlet pipe partially overlap.

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