CN212797060U - Steering device for all-terrain vehicle - Google Patents
Steering device for all-terrain vehicle Download PDFInfo
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- CN212797060U CN212797060U CN202021853537.XU CN202021853537U CN212797060U CN 212797060 U CN212797060 U CN 212797060U CN 202021853537 U CN202021853537 U CN 202021853537U CN 212797060 U CN212797060 U CN 212797060U
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Abstract
The utility model discloses a turn to device for all terrain vehicle can solve assembly difficulty, difficult dismantlement scheduling problem. The steering device comprises a steering wheel component, a steering mounting seat assembly, a steering upper shaft assembly, a power-assisted steering motor assembly, a steering lower shaft assembly, a steering device pull rod assembly and an air spring component, wherein the steering mounting seat assembly comprises a frame connecting part and a steering connecting part, the steering connecting part comprises a shell and a steering column matched with the shell, the shell is hinged with the frame connecting part, two ends of the air spring component are respectively hinged with the shell and the frame connecting part, the upper end of the steering column is connected with the lower end of the steering wheel component, and two ends of the steering upper shaft assembly are respectively connected with the lower end of the steering column and an input shaft of the power-assisted steering motor assembly; two ends of the steering lower shaft assembly are respectively connected with an output shaft of the power-assisted steering motor assembly and a steering gear pull rod assembly through universal joints; the steering gear pull rod assembly adopts a gear rack steering mechanism.
Description
Technical Field
The utility model relates to an all terrain vehicle technical field especially relates to a turn to device for all terrain vehicle.
Background
The all-terrain vehicle is commonly called a dune buggy and also called an all-terrain four-wheel off-road vehicle, and has the advantages of simplicity, practicability and good off-road performance. The vehicle is a non-road vehicle, can be suitable for running on various complex roads, and can be used for carrying out personnel maneuvering, carrying equipment, material transportation and the like under special regional conditions of mountainous regions, jungles, beaches, deserts, snowfields and the like.
In the existing all-terrain vehicle, a steering system is a rigid shaft type steering device, a driver performs a steering function by rotating a steering wheel, the steering wheel transmits torque force to an electronic booster through a steering shaft, the electronic booster transmits the torque force to a steering gear after applying force, the left and right movement of a steering pull rod is realized through the steering gear, and the steering pull rod drives a steering knuckle, namely a front wheel is driven to swing left and right to realize the steering function.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a turn to device for all terrain vehicle, can effectively solve demands such as assembly difficulty, difficult dismantlement to can effectively practice thrift the cost.
The purpose of the utility model is realized like this:
a steering device for an all-terrain vehicle,
comprises a steering wheel component, a steering mounting seat assembly, an upper steering shaft assembly, a power-assisted steering motor assembly, a lower steering shaft assembly and a steering gear pull rod assembly which are connected in sequence from top to bottom,
the steering mounting seat assembly comprises a frame connecting part and a steering connecting part, the steering connecting part comprises a shell and a direction column which is vertically matched with the shell in a rotating way, the shell is hinged with the frame connecting part, the steering mounting seat assembly also comprises an air spring component, the air spring component is positioned at the rear part of the steering connecting part, two ends of the air spring component are respectively hinged with the shell and the frame connecting part, the shell, the frame connecting part and the air spring component form a triangle, the upper end of the direction column is rigidly connected with the lower end of the steering wheel component,
two ends of the upper steering shaft assembly are connected with the lower end of the steering column and the input shaft of the power-assisted steering motor assembly through universal joints respectively;
two ends of the steering lower shaft assembly are respectively connected with an output shaft of the power-assisted steering motor assembly and a steering gear pull rod assembly through universal joints;
the steering gear pull rod assembly comprises an outer shell assembly, an input gear shaft and a rack meshed with the input gear shaft are arranged in the outer shell assembly, the upper end of the input gear shaft is connected with a steering lower shaft assembly, and two ends of the rack are respectively connected with a left steering pull rod and a right steering pull rod.
Preferably, the steering lower shaft assembly adopts a telescopic spline structure for adjusting the length of the steering lower shaft assembly, and comprises a spline tube welding combination and a spline shaft welding combination in sliding fit with the spline tube welding combination.
Preferably, one end of each of the left steering pull rod and the right steering pull rod is hinged to the rack, and the other end of each of the left steering pull rod and the right steering pull rod is connected with the wheel through a steering knuckle.
Preferably, the frame connection portion is part of a frame of an all-terrain vehicle.
Preferably, the frame connecting part is separately arranged and fixedly connected with the frame of the all-terrain vehicle.
Since the technical scheme is used, the utility model discloses following beneficial effect has:
the utility model discloses a one set of independent steering mechanism does not produce rigid connection with other mechanisms on the car, and the vehicle traveles impact resistance reinforce, operating stability is good, easily control, when improving maintainability, practices thrift manufacturing cost, and is light reliable, excellent in appearance.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic structural view of a steering linkage assembly;
FIG. 3 is a schematic structural view of a steerable lower axle assembly;
fig. 4 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1-4, a steering device for an all-terrain vehicle comprises a steering wheel component 3, a steering mounting seat assembly 17, an upper steering shaft assembly 19, a power-assisted steering motor assembly 21, a lower steering shaft assembly 24 and a steering tie rod assembly 25 which are connected in sequence from top to bottom.
Inside the steering wheel part 3, there is no integrated switch part, the steering wheel upper cover 4 can be directly disassembled, the steering wheel framework 5 and the steering mounting seat combination 17 are rigidly connected through bolts, the quick disassembly and assembly of the steering wheel can be realized, and meanwhile, the open type vehicle body waterproof treatment is easy.
The steering mounting seat assembly 17 comprises a frame connecting part and a steering connecting part 9, wherein the frame connecting part is one part of the frame of the all-terrain vehicle. Or the frame connecting part is independently arranged and is fixedly connected with the frame of the all-terrain vehicle. The steering connecting portion 9 comprises a shell and a direction column which is vertically matched with the shell in a rotating mode, the shell is hinged to the frame connecting portion (through a step bolt 12, a washer 13, a bushing 14 and a nut 15), the steering connecting portion further comprises an air spring component 10, the air spring component 10 is located behind the steering connecting portion, two ends of the air spring component 10 are hinged to the shell and the frame connecting portion respectively, the shell, the frame connecting portion and the air spring component 10 form a triangle, and the upper end of the direction column is rigidly connected with the lower end of the steering wheel component 3. The angle change of the steering wheel can be achieved by the piston movement of the gas spring member 7 causing the steering column to rotate about the axis of rotation.
The power steering motor assembly 21(EPS) is a device for generating a supplementary steering power using an external power in order to reduce an operation force of a driver acting on a steering wheel, and includes: a torque sensor, a power-assisted motor, a speed reducing structure, an MCU controller 22 (connected to the power-assisted steering motor assembly 21 through a bolt 23) and the like. The working principle is as follows: the torque sensor is connected with the steering shaft, when the steering shaft rotates, the torque sensor starts to work, deformation of a torsion bar in the steering shaft is converted into an electric signal and transmitted to the MCU, and the MCU determines the rotation direction of the power-assisted motor and the magnitude of power-assisted current according to signals of the vehicle speed sensor and the torque sensor, so that the power-assisted function is realized. The method is characterized in that: the EPS can realize different power-assisted effects under the same torque and different vehicle speeds, keep the vehicle light and convenient to steer at low speed (less than or equal to 10km/h) and stable and sunk to steer at high speed (more than or equal to 60km/h), and prevent the steering wheel from floating. The maximum torque output by the steering power-assisted is (30 +/-3) N.m, and the power-assisted hand feeling is (6-8) N.m in the maximum torque range.
And two ends of the upper steering shaft assembly 19 are connected with the lower end of the steering column and the input shaft of the power-assisted steering motor assembly 21 through universal joints respectively.
And two ends of the steering lower shaft assembly 24 are respectively connected with an output shaft of the power-assisted steering motor assembly 21 and a steering gear pull rod assembly 25 through universal joints. The steering lower shaft assembly adopts a telescopic spline structure and is used for adjusting the length of the steering lower shaft assembly, and the steering lower shaft assembly comprises a spline pipe welding combination and a spline shaft welding combination in sliding fit with the spline pipe welding combination. Still have the dust cover, connect in the mouth of pipe of spline pipe welded combination, with spline shaft welded combination clearance fit. The length of the assembly is not affected by the assembly size precision of the frame, the assembly can be freely adjusted in a telescopic mode, the assembly problem of the (rigid shaft type) steering shaft is greatly solved, the cost is saved, the assembly and disassembly are convenient, and the assembly and disassembly are safe and reliable.
The steering gear pull rod assembly 25 comprises a shell assembly, an input gear shaft and a rack meshed with the input gear shaft are arranged in the shell assembly, the upper end of the input gear shaft is connected with a steering lower shaft assembly 24, and two ends of the rack are respectively connected with a left steering pull rod and a right steering pull rod. One end of the left steering pull rod and one end of the right steering pull rod are respectively hinged with the rack (universal joints are adopted in the embodiment), and the other ends of the left steering pull rod and the right steering pull rod are respectively connected with wheels through steering joints. Two U-shaped grooves are arranged on the shell assembly, and are circumferentially and axially positioned through U-shaped clamps 29 and bolts 30 and are installed on the frame.
The steering gear pull rod assembly adopts a rack and pinion type front wheel to steer, and the working mode is as follows: the steering input shaft is directly connected with the (sliding type) steering lower shaft assembly, and the rotating moment and the steering angle from the steering wheel are converted into larger horizontal component force through a gear rack mechanism in the steering pull rod assembly, so that the steering pull rod assembly moves left and right. The steering pull rod assembly is connected with the wheels through a steering knuckle so as to turn the vehicle. The stroke of the steering gear assembly is 105 +/-1 mm, the effective number of turns of the pinion of the steering gear assembly is 3.07, and the transmission ratio i of the steering gear assembly is 34.15 mm/turn. Preferably, the gear rack is subjected to blank carburizing and finished product high-frequency quenching processes, and the gear rack is characterized by small size, high strength, capability of ensuring large torque transmission in a small space, capability of bearing 15000N impact force by the gear and the rack in the structure, high structural strength, simplicity and reliability.
The utility model discloses a dismantlement method does:
step 1: the steering wheel member 3 is attached and detached. The method comprises the following steps of detaching 3 self-tapping screws 6 at the bottom of a steering wheel framework, taking down a steering wheel upper protective cover 4, wherein a vehicle logo 1 mounting position is arranged in the steering wheel upper protective cover, and the vehicle logo 1 can be directly pasted. The steering wheel member 3 can be pulled out from the steering mount 9 by removing 1 of the steering wheel fastening nuts 2 (corresponding bolts 7 are provided on the steering wheel).
Step 2: gas spring component 10 is disassembled. The upper end of the gas spring component is provided with a step bolt 11, the lower end of the gas spring component is provided with a step bolt 16 (fixed through a nut 8), and the gas spring component can respectively rotate around the axis of the step bolts at the two ends. During disassembly and assembly, the gas spring component 10 can be taken out only by taking out the bolts with the two end steps.
And step 3: the steering mount 17 is disassembled. Turn to mount pad both sides and be equipped with 2 totally of bush 14, 2 totally of step bolt 12, 2 totally of gasket 13, through the bolt-up back, turn to the mount pad and wind both ends step bolt axis respectively, realize the free rotation, during the dismouting, only need take out the both ends step bolt and can take out and turn to mount pad 17.
And 4, step 4: the upper steering shaft assembly 19 and the power-assisted steering motor assembly 21 are disassembled and assembled. The steering upper shaft assembly can be taken out by disassembling 2 bolts 18(M8 × 25) at two ends of the steering upper shaft assembly; 3 power-assisted steering motor assembly and the frame mounting bolts 20(M8 × 16) and 2 power-assisted steering motor assembly lower end bolts 18(M8 × 25) are disassembled, and then the power-assisted steering motor assembly 21 can be taken out.
And 5: and a steering lower shaft assembly 24 is disassembled and assembled. And 2 bolts M8 and 25(18) at two ends of the steering lower shaft assembly are disassembled, and the steering lower shaft assembly 24 can be taken out.
Step 6: and disassembling and assembling the steering gear pull rod assembly 25. The steering lower shaft assembly 24 and the tie rod assembly connecting bolts 18(M8 × 25) are disassembled, 4 tie rod assemblies and the frame mounting bolts 30(M10 × 1.25 × 20) are disassembled, the slotted nuts 27 and the lock pins 28 at the tie rod and knuckle members 26 are disassembled, the steering lower shaft assembly is compressed upwards, and the tie rod assemblies 25 can be taken out from the side face of the vehicle body after being separated from the steering input shaft.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. A steering device for an all terrain vehicle characterized by:
comprises a steering wheel component (3), a steering mounting seat assembly (17), an upper steering shaft assembly (19), an assisted steering motor assembly (21), a lower steering shaft assembly (24) and a steering gear pull rod assembly (25) which are connected in sequence from top to bottom,
the steering mounting seat assembly (17) comprises a frame connecting part and a steering connecting part, the steering connecting part comprises a shell and a direction column which is vertically matched with the shell in a rotating mode, the shell is hinged with the frame connecting part, the steering mounting seat assembly further comprises an air spring component (10), the air spring component (10) is located behind the steering connecting part, two ends of the air spring component (10) are respectively hinged with the shell and the frame connecting part, the shell, the frame connecting part and the air spring component (10) form a triangle, the upper end of the direction column is rigidly connected with the lower end of the steering wheel component (3),
two ends of the upper steering shaft assembly (19) are respectively connected with the lower end of the steering column and an input shaft of the power-assisted steering motor assembly (21) through universal joints;
two ends of the steering lower shaft assembly (24) are respectively connected with an output shaft of the power-assisted steering motor assembly (21) and a steering gear pull rod assembly (25) through universal joints;
the steering gear pull rod assembly (25) comprises a shell assembly, an input gear shaft and a rack meshed with the input gear shaft are arranged in the shell assembly, the upper end of the input gear shaft is connected with a steering lower shaft assembly (24), and two ends of the rack are respectively connected with a left steering pull rod and a right steering pull rod.
2. Steering device for an all-terrain vehicle according to claim 1, characterized in that: the steering lower shaft assembly adopts a telescopic spline structure and is used for adjusting the length of the steering lower shaft assembly, and the steering lower shaft assembly comprises a spline pipe welding combination and a spline shaft welding combination in sliding fit with the spline pipe welding combination.
3. Steering device for an all-terrain vehicle according to claim 1, characterized in that: one ends of the left steering pull rod and the right steering pull rod are respectively hinged with the rack, and the other ends of the left steering pull rod and the right steering pull rod are respectively connected with the wheels through steering knuckles.
4. Steering device for an all-terrain vehicle according to claim 1, characterized in that: the frame connecting portion is a portion of a frame of the all-terrain vehicle.
5. Steering device for an all-terrain vehicle according to claim 1, characterized in that: the frame connecting part is independently arranged and is fixedly connected with the frame of the all-terrain vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021853537.XU CN212797060U (en) | 2020-08-31 | 2020-08-31 | Steering device for all-terrain vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021853537.XU CN212797060U (en) | 2020-08-31 | 2020-08-31 | Steering device for all-terrain vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212797060U true CN212797060U (en) | 2021-03-26 |
Family
ID=75089190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021853537.XU Active CN212797060U (en) | 2020-08-31 | 2020-08-31 | Steering device for all-terrain vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212797060U (en) |
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2020
- 2020-08-31 CN CN202021853537.XU patent/CN212797060U/en active Active
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