Steering limiting mechanism of all-terrain vehicle

Abstract

The utility model relates to the technical field of all-terrain vehicles, in particular to a steering limiting mechanism of an all-terrain vehicle, which comprises a steering device shell, a linear bearing is fixed on the inner wall of the steering device shell, and a steering assembly used for steering the vehicle is arranged in the linear bearing. A lubricating assembly used for lubricating the steering assembly is arranged on the upper surface of the steering device shell. The steering assembly comprises a linkage rod, the linkage rod is arranged on the inner wall of the linear bearing, two fixing blocks are fixed to the outer surface of the linkage rod, and buffer blocks arranged on the linkage rod in a sleeving mode are arranged on one sides of the two fixing blocks. Through the arranged steering assembly, the steering limiting effect can be achieved, when a vehicle is rapidly steered, a fixing block can be rapidly in contact with a buffer block, a buffer spring is compressed by impact force, then the impact force of the fixing block is buffered, the situation that the fixing block damages a limiting mechanism is avoided, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of all-terrain vehicle technology, and in particular to a steering limit mechanism for an all-terrain vehicle. Background Technology

[0002] The steering limit mechanism of an all-terrain vehicle is a key component ensuring stable driving in complex road conditions. The steering system is a crucial part of the vehicle chassis, and its function is to convert the torque applied by the driver to the steering wheel into wheel motion through components such as the steering column and intermediate shaft, thus achieving vehicle steering. The main function of the steering limit mechanism is to limit the steering angle of the all-terrain vehicle, preventing oversteering that could lead to loss of control or damage. By setting reasonable steering angle limits, the vehicle can maintain stable driving in various road conditions, improving driving safety.

[0003] The existing method of controlling the rotation of a large gear to limit the steering wheel results in a large size of the large gear. In addition, due to the misalignment of the two gears, the center distance of the installation is also large, which ultimately leads to an excessively large overall size of the limiting device, affecting the layout of the steering system.

[0004] Existing patent (publication number: CN214112669U) discloses a steering limiting mechanism and a vehicle, which includes a steering shaft and a planetary gear mechanism. The planetary gear mechanism is used to limit the rotation of the steering shaft. One end of the steering shaft is connected to the steering wheel body, and the sun gear of the planetary gear mechanism is fixedly connected to the other end of the steering shaft. The ring gear of the planetary gear mechanism is an internal gear. By using the planetary gear mechanism as the limiting mechanism, the sun gear as the input end, and the ring gear as the output end, with the input and output ends arranged coaxially, it reduces the radial space, makes the structure more compact, and reduces the arrangement pressure of the steering system.

[0005] To address the aforementioned issues, while existing patents have proposed solutions that effectively reduce radial space by using a planetary gear mechanism as a limiting mechanism, with the sun gear as the input and the ring gear as the output, this solution cannot effectively limit the vehicle's steering angle in actual use, which may seriously affect the vehicle's driving safety. Summary of the Invention

[0006] The purpose of this utility model is to provide a steering limiting mechanism for an all-terrain vehicle, which can play the role of steering limiting. When the vehicle is turning quickly, the fixed block will quickly contact the buffer block, and the buffer spring will be compressed by the impact force, thereby buffering the impact force of the fixed block, avoiding damage to the limiting mechanism by the fixed block, improving practicality, and solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a steering limiting mechanism for an all-terrain vehicle, comprising a steering device housing, a linear bearing fixed to the inner wall of the steering device housing, a steering assembly for steering the vehicle being provided inside the linear bearing, and a lubrication assembly for lubricating the steering assembly being provided on the upper surface of the steering device housing.

[0008] The steering assembly includes a linkage rod, which is installed on the inner wall of the linear bearing. Two fixing blocks are fixed on the outer surface of the linkage rod. Each of the two fixing blocks has a buffer block sleeved on one side of the linkage rod. Two limiting rods penetrating the outer wall of the steering device housing are fixed on one side of the buffer block. A buffer spring that abuts against the buffer block is sleeved on the outer surface of the limiting rod.

[0009] Preferably, the outer surface of the linkage rod is provided with helical teeth, and a drive gear meshes with one side of the helical teeth.

[0010] Preferably, a stepper motor is connected to the input end of the drive gear, and the stepper motor is bolted to the housing of the steering device.

[0011] Preferably, two connecting blocks are fixed to the outer surface of the steering device housing.

[0012] Preferably, both ends of the steering device housing are fixed with protective shells that are fixedly connected to the outer surface of the linkage rod.

[0013] Preferably, the lubrication assembly includes an oiling component, which is connected to the upper surface of the steering device housing, and the upper surface of the oiling component has an oil inlet.

[0014] Preferably, a sealing bolt is threaded above the oil inlet, and a displacement sensor is threadedly installed on the side wall of the steering device housing.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The steering component can act as a steering limiter. When the vehicle is turning quickly, the fixed block will quickly contact the buffer block, and the buffer spring will be compressed by the impact force, thereby buffering the impact force of the fixed block, avoiding damage to the limiting mechanism by the fixed block, and improving practicality.

[0017] 2. By unscrewing the sealing bolts on the lubrication component, lubricating oil can be added into the steering gear housing through the oil inlet, thereby lubricating the internal parts and improving their service life. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a half-sectional structural diagram of the steering device housing of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged view of A in the middle;

[0022] Figure 4 This is a three-dimensional structural diagram of the refueling component of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Steering device housing; 2. Linear bearing; 3. Linkage rod; 31. Fixing block; 32. Buffer block; 33. Limiting rod; 34. Buffer spring; 4. Helical gear; 5. Drive gear; 6. Stepper motor; 7. Connecting block; 8. Protective shell; 9. Oil filling parts; 91. Oil inlet; 92. Sealing bolt; 10. Displacement sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A steering limiting mechanism for an all-terrain vehicle includes a steering device housing 1, a linear bearing 2 fixed to the inner wall of the steering device housing 1, a steering assembly for steering the vehicle inside the linear bearing 2, and a lubrication assembly for lubricating the steering assembly on the upper surface of the steering device housing 1.

[0028] The steering assembly includes a linkage rod 3, which is mounted on the inner wall of the linear bearing 2. Two fixing blocks 31 are fixed on the outer surface of the linkage rod 3. Each of the two fixing blocks 31 has a buffer block 32 sleeved on one side of the linkage rod 3. Two limiting rods 33 that penetrate the outer wall of the steering device housing 1 are fixed on one side of the buffer block 32. A buffer spring 34 that abuts against the buffer block 32 is sleeved on the outer surface of the limiting rod 33. Helical teeth 4 are formed on the outer surface of the linkage rod 3. A drive gear 5 is meshed on one side of the helical teeth 4. A stepper motor 6 is connected to the input end of the drive gear 5. The stepper motor 6 is bolted to the steering device housing 1. Two connecting blocks 7 are fixed on the outer surface of the steering device housing 1.

[0029] By adopting the above technical solution, before using the steering limiting mechanism of the all-terrain vehicle, the steering device is first assembled onto the vehicle. Through the connecting block 7 on the steering device housing 1, bolts can be used to fix the steering device housing 1 to the vehicle's chassis frame. The linkage rod 3 is fixed to the connecting rod of the vehicle's wheel hub. The stepper motor 6 receives the steering signal sent by the controller, which drives the drive gear 5 to mesh with the helical gear 4 to rotate, thereby driving the linkage rod 3 to move horizontally. The linear bearing 2 ensures the stability of the linkage rod 3 during movement. When the moving rod 3 moves to its limit, the fixed block 31 and the buffer block 32 on the linkage rod 3 come into contact. The buffer block 32 pushes the limit rod 33 to move, and at the same time drives the buffer spring 34 to compress, limiting the fixed block 31 and preventing the linkage rod 3 from moving further, thus playing a steering limiting role. When the vehicle turns quickly, the fixed block 31 will quickly come into contact with the buffer block 32, and the buffer spring 34 will be compressed by the impact force, thus buffering the impact force of the fixed block 31, avoiding damage to the limiting mechanism by the fixed block 31, and improving practicality.

[0030] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, both ends of the steering device housing 1 are fixed with protective shells 8 that are fixedly connected to the outer surface of the linkage rod 3. The lubrication component includes a lubrication element 9, which is connected to the upper surface of the steering device housing 1. The upper surface of the lubrication element 9 has an oil inlet 91, and a sealing bolt 92 is threadedly connected above the oil inlet 91. A displacement sensor 10 is threadedly installed on the side wall of the steering device housing 1.

[0031] By adopting the above technical solution, the protective shell 8 can play a protective role, the displacement sensor 10 can detect the movement position of the linkage rod 3, and the detected data can be sent to the controller for processing through the wire. By unscrewing the sealing bolt 92 on the oil filling part 9, lubricating oil can be added into the steering device housing 1 through the oil inlet 91, thereby lubricating the internal parts and improving their service life.

[0032] Working principle: The steering device housing 1 and the vehicle chassis frame are fixed together by bolts via connecting block 7. Stepper motor 6 drives drive gear 5 to mesh with helical gear 4, causing rotation and thus driving linkage rod 3 to move horizontally. Linear bearing 2 ensures the stability of linkage rod 3 during movement. When linkage rod 3 reaches its limit, fixed block 31 and buffer block 32 contact, causing buffer block 32 to push limit rod 33, compressing buffer spring 34 and limiting fixed block 31, preventing linkage rod 3 from moving further. Furthermore, when the vehicle is in… During rapid steering, the fixed block 31 will quickly contact the buffer block 32, and the buffer spring 34 will be compressed by the impact force, thereby buffering the impact force of the fixed block 31, preventing the fixed block 31 from damaging the limiting mechanism and improving practicality. The protective shell 8 can play a protective role. The displacement sensor 10 can detect the movement position of the linkage rod 3. The detected data can be sent to the controller for processing through the wire. By unscrewing the sealing bolt 92 on the oil filling part 9, lubricating oil can be added into the steering device housing 1 through the oil inlet 91.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steering stop mechanism for an all-terrain vehicle, comprising a steering device housing (1), characterized in that: The inner wall of the steering device shell (1) is fixed with a linear bearing (2), the inside of the linear bearing (2) is provided with a steering assembly for steering the vehicle, and the upper surface of the steering device shell (1) is provided with a lubricating assembly for lubricating the steering assembly. The steering assembly comprises a linkage rod (3), the linkage rod (3) is arranged in the inner wall of the linear bearing (2), the outer surface of the linkage rod (3) is fixed with two fixed blocks (31), one side of the two fixed blocks (31) is provided with a buffer block (32) sleeved on the linkage rod (3), one side of the buffer block (32) is fixed with two limiting rods (33) penetrating through the outer wall of the steering device shell (1), and the outer surface of the limiting rod (33) is sleeved with a buffer spring (34) in abutment connection with the buffer block (32).

2. The steering stop mechanism of an all-terrain vehicle according to claim 1, characterized by: The outer surface of the linkage rod (3) is provided with a helical tooth (4), and one side of the helical tooth (4) is engaged with a driving gear (5).

3. The steering stop mechanism of claim 2, wherein: The input end of the driving gear (5) is connected with a stepping motor (6), and the stepping motor (6) is bolted between the steering device shell (1).

4. The steering stop mechanism of claim 1 wherein: The outer surface of the steering device shell (1) is fixed with two connecting blocks (7).

5. The steering stop mechanism of claim 1 wherein: Both ends of the steering device shell (1) are fixed with a protective shell (8) fixedly connected with the outer surface of the linkage rod (3).

6. The steering stop mechanism of claim 1 wherein: The lubricating assembly comprises an oiling member (9), the oiling member (9) is communicated on the upper surface of the steering device shell (1), and the upper surface of the oiling member (9) is provided with an oil inlet (91).

7. A steering stop mechanism for an all-terrain vehicle as defined in claim 6, characterized in that: The upper side of the oil inlet (91) is threadedly connected with a sealing bolt (92), and the side wall of the steering device shell (1) is threadedly installed with a displacement sensor (10).

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