New energy sightseeing vehicle steering mechanism with steering clearance compensation function

Abstract

The new energy sightseeing vehicle steering mechanism with the steering clearance compensation function comprises a steering knuckle, a first groove and a ball head connecting groove are formed in the steering knuckle, a steering shaft rod is slidably connected to the inner surface of the ball head connecting groove, a first clamping jaw sliding block mechanism is fixedly connected to the inner surface of the first groove, and a second clamping jaw sliding block mechanism is fixedly connected to the inner surface of the second groove. A hydraulic rod and a spring are fixedly connected to the outer surface of the upper end of the first clamping jaw sliding block mechanism, a steering shaft rod and a limiting check block are tightly attached to the outer surface of the other end of the first clamping jaw sliding block mechanism, a spring is attached to the outer surface of the acting end of the hydraulic rod, and a check block is fixedly connected to the outer surface of the hydraulic rod. A first groove is fixedly connected to the lower surface of the check block, a steering knuckle tailstock is tightly attached to the outer surface of the steering knuckle, and a gasket is pressed on the outer surface of the steering knuckle. Through cooperative use of the components, the effect that the device can be stably used for a long time while automatically compensating the gap of the steering mechanism during operation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle engineering, and in particular to a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation. Background Art

[0002] New energy sightseeing vehicles are widely used in closed or semi-enclosed areas such as scenic spots, parks, and communities. The reliability, accuracy, and operational comfort of their steering systems are directly related to driving safety and user experience. Because sightseeing vehicles typically operate at low speeds, frequently make turns, and experience large load fluctuations, their steering mechanisms (particularly the meshing pairs of gears, racks, and worm gears in the steering transmission chain) inevitably develop play (or "gap") over long periods of use due to component wear, assembly errors, or material deformation. This play gradually increases with use.

[0003] Steering play in the steering mechanism can lead to a series of adverse effects: 1. Reduced steering precision: When the driver turns the steering wheel, the play must be overcome before the wheels can turn. This results in significant "loose travel" in the steering wheel and a lag between steering commands and actual wheel response, reducing steering precision. 2. Reduced responsiveness: Play prevents the steering system from quickly responding to even the smallest driver steering inputs, resulting in a vague and sluggish steering feel. 3. Reduced driving stability: When driving in a straight line, play can cause the vehicle to drift slightly, unintentionally, due to bumps on the road or crosswinds. This requires the driver to constantly adjust the steering wheel to correct the situation, increasing driver fatigue. 4. Abnormal tire wear: Minor wheel oscillations or delayed response caused by play can exacerbate irregular tire wear, shorten tire life, and increase operating costs. 5. During emergency evasive maneuvers or precise maneuvers, excessive play can delay steering response or lead to inaccurate steering control, posing a safety hazard.

[0004] In order to overcome the steering clearance problem, some attempts have been made in the prior art. For example, a solution is adopted to set rubber elastic elements (such as rubber blocks, rubber pads) at key contact points. This solution may set a rubber component with a specific shape at the input shaft or output end of the steering gear, and use the elastic deformation of the rubber to fill or compensate for the gap. However, this compensation solution based on rubber elastic elements has significant limitations: 1. Insufficient wear resistance: The steering operation of sightseeing cars is extremely frequent. Under the action of continuous and repeated extrusion, friction and shear stress, the rubber material wears much faster than metal parts. Once the amount of rubber wear exceeds its initial compression, the compensation effect will quickly fail, and may even produce new and larger gaps. 2. Poor durability and stability: Rubber materials are easily affected by environmental factors (such as temperature changes, ozone, and oil erosion), and will age, harden, crack or permanently deform (plastic deformation), resulting in changes in its elastic modulus, attenuation or even loss of compensation force, and inability to maintain the compensation effect in a long-term and stable manner. 3. Limited and non-adjustable compensation capacity: The rubber's elastic deformation and available compensation force are limited, and once installed, its pre-compression and compensation capacity are fixed. It can only compensate for gap increases within the initial setting or a smaller range. This solution is ineffective when wear exceeds the rubber's maximum elastic compensation range or when adapting to different wear stages. 4. High-temperature performance degradation: High temperatures in the engine compartment or operating environment accelerate rubber aging and significantly reduce its elasticity, further weakening the compensation effect.

[0005] Therefore, although the steering clearance compensation solution in the existing technology based on elastic elements such as rubber protrusions has a relatively simple structure, it has fatal shortcomings such as poor wear resistance, easy aging, limited compensation capacity and unsustainability of its inherent materials. In practical applications, especially in working conditions such as sightseeing vehicles that require frequent and reliable steering, it is difficult to fundamentally solve the problem of steering clearance increasing with prolonged use, and it is impossible to effectively guarantee the accuracy, sensitivity and reliability of the steering system in the long term. Summary of the Invention

[0006] The purpose of the present invention is to solve the technical problems existing in the prior art and provide a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation, aiming to solve the problem that the steering mechanism of the existing sightseeing vehicle fails to take into account the frequent use of the equipment during operation, and the single rubber will wear out quickly, resulting in reduced vehicle stability, easy damage to components and reduced ride comfort.

[0007] The present invention introduces a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation, comprising: a steering knuckle, a groove 1 and a ball head connecting groove are provided inside the steering knuckle, the inner surface of the ball head connecting groove is slidably connected to the steering shaft, the inner surface of the groove 1 is fixedly connected to a claw slider mechanism 1, the claw slider mechanism 1 drives the claw to realize radial opening and closing action through the linear motion of the slider through the inclined transmission structure, thereby accurately clamping or releasing the workpiece, this mechanical transmission method is the existing technology, the upper end outer surface of the claw slider mechanism 1 is fixedly connected to a hydraulic rod and a spring, the other end outer surface of the claw slider mechanism 1 is tightly fitted with the steering shaft and the limit block, the outer surface of the active end of the hydraulic rod is fitted with a spring, the outer surface of the hydraulic rod is fixedly connected to the block, the lower surface of the block is fixedly connected to the groove 1, the outer surface of the steering knuckle is tightly fitted with the steering knuckle tail stock, the outer surface is pressed with a washer, and the outer surface of the washer is pressed with a spring washer. By using the above components in conjunction with each other, the device can automatically avoid the occurrence of gaps during frequent use and can automatically compensate according to the gaps.

[0008] According to the present invention, a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation is provided. A fixing bolt (1) is attached to the inner surface of the spring washer and washer, and the side surface of the fixing bolt (1) is threadedly connected to the steering knuckle and the steering knuckle tailstock. The coordinated use of these components ensures a secure structure.

[0009] According to the present invention, a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation is provided. The inner surfaces of the spring washer and washer are bonded to a second fixing bolt, and the side surface of the second fixing bolt is threadedly connected to the steering knuckle and the steering knuckle tailstock. The coordinated use of these components achieves a rational device structure.

[0010] According to the present invention, a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation is provided. The inner surfaces of the spring washer and washer are bonded to a third fixing bolt, and the side surface of the third fixing bolt is threadedly connected to the steering knuckle and the steering knuckle tailstock. The coordinated use of these components ensures a secure structure.

[0011] According to the present invention, a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation is provided. A fourth fixing bolt is attached to the inner surfaces of the spring washer and washer. The side surface of the fourth fixing bolt is threadedly connected to the steering knuckle and the steering knuckle tailstock. The outer surface of the steering knuckle tailstock is fixedly connected to a high-torque shaft, which in turn is fixedly connected to the outer surface of the steering column tube. The coordinated use of these components ensures a robust structure.

[0012] According to the present invention, a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation is provided. The steering knuckle is provided with a second groove, the inner surface of which is fixedly connected to a second claw slider mechanism. The outer surface of the upper end of the second claw slider mechanism is fixedly connected to a hydraulic rod and a spring. The coordinated use of these components ensures a robust structure.

[0013] According to the present invention, a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation is provided. The steering knuckle is provided with a third groove, the inner surface of which is fixedly connected to a third claw slider mechanism. The outer surface of the upper end of the third claw slider mechanism is fixedly connected to a hydraulic rod and a spring. The coordinated use of these components enables the device to flexibly compensate for clearance.

[0014] According to the present invention, a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation is provided. A steering wheel mounting slot is provided within the steering column tube, and a steering wheel connecting bolt is threadedly connected to the interior of the steering wheel mounting slot. The coordinated use of these components ensures a secure and easy-to-install device.

[0015] According to a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation provided by the present invention, the hydraulic rod, claw slider mechanism 1, claw slider mechanism 2 and claw slider mechanism 3 together constitute a closed-loop compensation unit. When the steering shaft rod is subjected to the steering force and produces a positive displacement, the claw slider mechanism 1 follows the compression spring and triggers the hydraulic rod to contract, so that the end of the slider continues to abut the surface of the steering shaft rod; when the steering force is withdrawn or acts in the reverse direction, the hydraulic rod automatically releases the stroke based on the oil circuit pressure difference, and pushes the claw slider mechanism 1 to move in the reverse direction along the groove, thereby compensating for the mechanical clearance caused by the return; the spring provides an initial preload force, and the hydraulic rod provides a dynamic damping force, and the two work together to eliminate the bidirectional steering clearance.

[0016] According to a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation provided by the present invention, the contact surfaces of the first, second, and third claw slider mechanisms with the steering shaft are each provided with a self-lubricating wear-resistant layer, and the self-lubricating wear-resistant layer is composed of the following structure:

[0017] Base layer: laser cladding nickel-based alloy layer, thickness 0.3-0.5mm, hardness ≥HRC 55;

[0018] Functional layer: micropores inlaid with solid lubricant, pore size 50-100μm, filled with molybdenum disulfide-graphene composite paste;

[0019] Surface layer: polytetrafluoroethylene permeable coating, friction coefficient ≤ 0.08.

[0020] Beneficial effects of the present invention:

[0021] 1. Significantly improve steering response sensitivity and control immediacy: The present invention introduces an innovative steering clearance compensation mechanism, which can dynamically eliminate or significantly reduce the assembly clearance and wear clearance of each connecting pair in the steering transmission chain (from the steering wheel to the steering wheel) in real time, thereby effectively eliminating the problems of "steering wheel idle travel" or "steering virtual position" in traditional steering mechanisms, greatly improving the control sensitivity and driving directness of sightseeing vehicles in low-speed curves, narrow areas or when delicate operations are required.

[0022] 2. Significantly improve steering control accuracy and vehicle tracking: The elimination of steering clearance directly solves the problems of steering command distortion and positioning ambiguity caused by clearance accumulation. When continuously turning, returning to the center position, or maintaining straight driving, the vehicle can more stably follow the predetermined trajectory, significantly reducing the "drifting", "deviation" or "over-correction" caused by clearance, improving driving stability and safety, especially on long straight roads or when driving at high speeds.

[0023] 3. Effectively reduce abnormal tire wear and extend tire life: The gap compensation mechanism of the present invention significantly suppresses the uncontrolled wheel micro-shaking, so that the tire can maintain a more stable ground posture and rolling direction during driving, especially when driving in a straight line. The tire wear pattern tends to be more uniform and normal rolling wear, which greatly reduces the abnormal wear rate and wear form caused by steering clearance, directly extends the service life of the tire, and reduces the operating and maintenance costs of the sightseeing vehicle.

[0024] 4. Enhanced the rigidity and integrity of the steering system and improved driving quality: The gap compensation mechanism of the present invention provides continuous preload for the steering transmission chain, significantly improving the rigidity of the entire steering system. The feedback information from the road surface to the driver is also clearer and more direct, avoiding the loose, vague or even "hitting" feeling caused by the gap, and improving the overall driving quality and confidence.

[0025] 5. Extend the life of steering system components: Although the compensation mechanism itself may add a small number of components, it reduces the impact load, vibration and abnormal relative movement caused by the existence of gaps in the transmission chain by eliminating gaps. This improves the working environment of key load-bearing components such as gears, racks, ball heads, bearings, etc., makes the force more stable, and reduces the wear rate, which helps to extend the service life of the core components of the entire steering system and reduce the long-term failure rate.

[0026] 6. Improved ride comfort: It reduces the uncontrolled slight swing of the wheels caused by steering clearance, helps reduce the subtle vibration and noise transmitted to the vehicle body, and improves the ride stability and comfort of sightseeing bus passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0028] Figure 1 This is a three-dimensional diagram of the steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to the present invention;

[0029] Figure 2 This is a front view of the steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to the present invention;

[0030] Figure 3 This is a left view of the steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to the present invention;

[0031] Figure 4 A top view of the steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to the present invention;

[0032] Figure 5 This is a bottom view of the steering mechanism of the new energy sightseeing vehicle with steering clearance compensation according to the present invention.

[0033] Legend:

[0034] 1. Steering knuckle; 2. Slot 1; 3. Slot 2; 4. Slot 3; 5. Claw slider mechanism 1; 6. Claw slider mechanism 2; 7. Claw slider mechanism 3; 8. Steering knuckle tailstock; 9. Spring washer; 10. Washer; 11. Fixing bolt 1; 12. Fixing bolt 2; 13. Fixing bolt 3; 14. Fixing bolt 4; 15. Stopper; 16. Hydraulic rod; 17. Ball joint connecting groove; 18. High torque shaft; 19. Steering column tube; 20. Steering wheel connecting bolt; 21. Spring; 22. Steering wheel mounting groove; 23. Steering shaft; 24. Limit stopper; 25. Self-lubricating wear-resistant layer. DETAILED DESCRIPTION

[0035] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0036] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 5, an embodiment of the present invention is a steering mechanism for a new energy sightseeing vehicle with steering clearance compensation, which includes: a steering knuckle 1, a groove 2 and a ball head connecting groove 17 are provided inside the steering knuckle 1, the inner surface of the ball head connecting groove 17 is slidably connected to the steering shaft 23, and the inner surface of the groove 2 is fixedly connected to a claw slider mechanism 5, the claw slider mechanism 5 drives the claw to realize radial opening and closing action through the linear motion of the slider through the inclined transmission structure, thereby accurately clamping or releasing the workpiece, this mechanical transmission method is a prior art, the upper end outer surface of the claw slider mechanism 15 is fixedly connected to the hydraulic rod 16 and the spring 21, the other end outer surface of the claw slider mechanism 15 is tightly fitted with the steering shaft 23 and the limit block 24, the outer surface of the active end of the hydraulic rod 16 is fitted with the spring 21, the outer surface of the hydraulic rod 16 is fixedly connected to the block 15, and the lower surface of the block 15 is fixedly connected to the groove 2, the outer surface of the steering knuckle 1 The surface is tightly fitted with the steering knuckle tailstock 8, the outer surface of which is pressed with a washer 10, the outer surface of which is pressed with a spring washer 9, the inner surfaces of the spring washer 9 and the washer 10 are fitted with a fixing bolt 11, and the side surface of the fixing bolt 11 is threadedly connected with the steering knuckle 1 and the steering knuckle tailstock 8; the inner surfaces of the spring washer 9 and the washer 10 are fitted with a fixing bolt 2 12, and the side surface of the fixing bolt 2 12 is threadedly connected with the steering knuckle 1 and the steering knuckle tailstock 8; the inner surfaces of the spring washer 9 and the washer 10 are fitted with a fixing bolt 3 13, and the side surface of the fixing bolt 3 13 is threadedly connected with the steering knuckle 1 and the steering knuckle tailstock 8; the inner surfaces of the spring washer 9 and the washer 10 are fitted with a fixing bolt 4 14, and the side surface of the fixing bolt 4 14 is threadedly connected with the steering knuckle 1 and the steering knuckle tailstock 8, the outer surface of the steering knuckle tailstock 8 is fixedly connected with a high torque shaft 18, and the outer surface of the high torque shaft 18 is fixedly connected with a steering column tube 19.

[0037] During use of the present invention, the hydraulic rod 16 and the spring 21 will continue to ensure that the claw slider mechanism 1 5, the claw slider mechanism 2 6 and the claw slider mechanism 3 7 are tightly fitted to the steering shaft 23. At the same time, the limit block 24 outside the steering shaft is also fitted to the side surfaces of the claw slider mechanism 1 5, the claw slider mechanism 2 6 and the claw slider mechanism 3 7 to prevent the occurrence of a virtual position caused by the increase in the gap.

[0038] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4A groove 23 is provided inside the steering knuckle 1, and a claw slider mechanism 26 is fixedly connected to the inner surface of the groove 23, and a hydraulic rod 16 and a spring 21 are fixedly connected to the outer surface of the upper end of the claw slider mechanism 26; a groove 3 is provided inside the steering knuckle 1, and a claw slider mechanism 3 7 is fixedly connected to the inner surface of the groove 34, and a hydraulic rod 16 and a spring 21 are fixedly connected to the outer surface of the upper end of the claw slider mechanism 3 7; a steering wheel mounting groove 22 is provided inside the steering column tube 19, and a steering wheel connecting bolt 20 is threadedly connected to the inner surface of the steering wheel mounting groove 22.

[0039] In the present invention, the steering wheel mounting groove 22 and the steering wheel connecting bolts 20 connected therein make the device connection more secure, and ultimately achieve the effect of automatically compensating the steering mechanism clearance during operation while being able to be used stably for a long time.

[0040] The working principle of the present invention is as follows: during use, the hydraulic rod 16 and the spring 21 will continue to ensure that the claw slider mechanism 1 5, the claw slider mechanism 2 6 and the claw slider mechanism 3 7 are tightly fitted into the steering shaft 23, while the limit block 24 outside the steering shaft is also fitted into the side surfaces of the claw slider mechanism 1 5, the claw slider mechanism 2 6 and the claw slider mechanism 3 7 to prevent the occurrence of a virtual position caused by the increase in the gap; the steering wheel mounting groove 22 and the steering wheel connecting bolt 20 connected thereto make the device connection more firmly, and finally achieve the effect of automatically compensating for the steering mechanism gap during operation while being able to be used stably for a long time.

[0041] It should also be noted that the hydraulic rod 16, together with the claw slider mechanism 1 5, the claw slider mechanism 2 6, and the claw slider mechanism 3 7, constitute a closed-loop compensation unit. When the steering shaft 23 is subjected to the steering force and produces a positive displacement, the claw slider mechanism 1 5 follows the compression spring 21 and triggers the hydraulic rod 16 to contract, so that the end of the slider continues to abut the surface of the steering shaft 23. When the steering force is removed or reversed, the hydraulic rod 16 automatically releases the stroke based on the oil pressure difference, pushing the claw slider mechanism 1 5 to reverse displacement along the groove 1 2 to compensate for the mechanical clearance caused by the return. The spring 21 provides the initial preload force, and the hydraulic rod 16 provides the dynamic damping force. The two work together to eliminate the bidirectional steering clearance. In the present invention, the claw slider mechanism 1 5, the claw slider mechanism 2 6, and the claw slider mechanism 3 7 are each provided with a self-lubricating wear-resistant layer 25 on the contact surface with the steering shaft 23. The self-lubricating wear-resistant layer 25 is composed of the following structure:

[0042] Base layer: laser cladding nickel-based alloy layer, thickness 0.3-0.5mm, hardness ≥HRC 55;

[0043] Functional layer: micropores inlaid with solid lubricant, pore size 50-100μm, filled with molybdenum disulfide-graphene composite paste;

[0044] Surface layer: polytetrafluoroethylene permeable coating, friction coefficient ≤ 0.08. The self-lubricating wear-resistant layer 25 can solve the problem of high-frequency abutment movement of the compensation mechanism causing easy wear. The three-layer composite wear-resistant structure can greatly extend the service life of the component.

[0045] The present invention, through its innovative steering clearance compensation design, effectively solves the core defect of the steering mechanism of existing new energy sightseeing vehicles caused by excessive clearance from the root. Its most prominent beneficial effect is that it completely or substantially eliminates steering offset, achieving "zero delay" and "high-fidelity" transmission of steering response, thereby simultaneously achieving improved handling sensitivity, steering accuracy, driving stability, and safety, and significantly reducing abnormal wear of the tires and steering system itself, extending the life of key components, and ultimately improving the overall driving performance, ride comfort, and economy of the sightseeing vehicle. The compensation mechanism has a reasonable structure, significant and sustainable compensation effect, and has important practical value and market prospects.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Although the applicant has described the present invention in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that those modifications or equivalent substitutions of the technical solution of the present invention cannot depart from the purpose and scope of the technical solution of the present invention and should be covered by the scope of the claims of the present invention.

Claims

1. A steering mechanism for a new energy sightseeing vehicle with steering clearance compensation, characterized in that: include: A steering knuckle (1) is provided with a groove (2) and a ball head connecting groove (17) inside the steering knuckle (1), the inner surface of the ball head connecting groove (17) is slidably connected to a steering shaft (23), the inner surface of the groove (2) is fixedly connected to a claw slider mechanism (5), the outer surface of the upper end of the claw slider mechanism (5) is fixedly connected to a hydraulic rod (16) and a spring (21), the outer surface of the other end of the claw slider mechanism (5) is tightly fitted with a steering shaft (23), and the inner surface of the groove (2) is fixedly connected to a claw slider mechanism (5). Toward the shaft rod (23) and the limit block (24), the outer surface of the action end of the hydraulic rod (16) is fitted with a spring (21), the outer surface of the hydraulic rod (16) is fixedly connected with a block (15), the lower surface of the block (15) is fixedly connected with a groove (2), the outer surface of the steering knuckle (1) is tightly fitted with a steering knuckle tail seat (8), the outer surface is pressed with a washer (10), and the outer surface of the washer (10) is pressed with a spring washer (9).

2. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 1, characterized in that: The inner surfaces of the spring washer (9) and the washer (10) are fitted with a fixing bolt (11), and the side surface of the fixing bolt (11) is threadedly connected to the steering knuckle (1) and the steering knuckle tail seat (8).

3. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 2, characterized in that: The inner surfaces of the spring washer (9) and the washer (10) are fitted with a second fixing bolt (12), and the side surface of the second fixing bolt (12) is threadedly connected to the steering knuckle (1) and the steering knuckle tail seat (8).

4. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 3 is characterized in that: The inner surfaces of the spring washer (9) and the washer (10) are fitted with a fixing bolt three (13), and the side surface of the fixing bolt three (13) is threadedly connected to the steering knuckle (1) and the steering knuckle tail seat (8).

5. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 4, characterized in that: The inner surfaces of the spring washer (9) and the washer (10) are fitted with a fixing bolt four (14); the side surface of the fixing bolt four (14) is threadedly connected to the steering knuckle (1) and the steering knuckle tail seat (8); the outer surface of the steering knuckle tail seat (8) is fixedly connected to a high torque shaft (18); and the outer surface of the high torque shaft (18) is fixedly connected to a steering column tube (19).

6. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 5, characterized in that: A second groove (3) is provided inside the steering knuckle (1), the inner surface of the second groove (3) is fixedly connected to a second claw slider mechanism (6), and the outer surface of the upper end of the second claw slider mechanism (6) is fixedly connected to a hydraulic rod (16) and a spring (21).

7. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 6, characterized in that: A groove three (4) is provided inside the steering knuckle (1), the inner surface of the groove three (4) is fixedly connected to a claw slider mechanism three (7), and the outer surface of the upper end of the claw slider mechanism three (7) is fixedly connected to a hydraulic rod (16) and a spring (21).

8. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 7, characterized in that: A steering wheel mounting groove (22) is provided inside the steering column tube (19), and a steering wheel connecting bolt (20) is connected to the inner thread of the steering wheel mounting groove (22).

9. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 8, characterized in that: The hydraulic rod (16) together with the claw slider mechanism 1 (5), the claw slider mechanism 2 (6) and the claw slider mechanism 3 (7) constitute a closed-loop compensation unit. When the steering shaft (23) is subjected to the steering force and produces a positive displacement, the claw slider mechanism 1 (5) follows the compression spring (21) and triggers the hydraulic rod (16) to contract, so that the end of the slider continues to abut the surface of the steering shaft (23); when the steering force is withdrawn or reversed, the hydraulic rod (16) automatically releases the stroke based on the oil circuit pressure difference, pushing the claw slider mechanism 1 (5) to move in the opposite direction along the groove 1 (2) to compensate for the mechanical clearance caused by the return; the spring (21) provides an initial preload force, and the hydraulic rod (16) provides a dynamic damping force, and the two work together to eliminate the bidirectional steering clearance.

10. The steering mechanism of a new energy sightseeing vehicle with steering clearance compensation according to claim 9, characterized in that: The contact surfaces of the claw slider mechanism 1 (5), the claw slider mechanism 2 (6) and the claw slider mechanism 3 (7) with the steering shaft (23) are respectively provided with a self-lubricating wear-resistant layer (25), and the self-lubricating wear-resistant layer (25) is composed of the following structure: Base layer: laser cladding nickel-based alloy layer, thickness 0.3-0.5mm, hardness ≥HRC 55; Functional layer: micropores inlaid with solid lubricant, pore size 50-100μm, filled with molybdenum disulfide-graphene composite paste; Surface layer: polytetrafluoroethylene permeable coating, friction coefficient ≤ 0.08.

Images