Steering gear assembly with worm and gear reducing mechanism for tricycle

By using a steering assembly with a worm gear and worm speed reduction mechanism in tricycles, the simultaneous steering of the front and rear wheels is achieved, which solves the problem of large turning radius of existing tricycles and improves the turning ability and stability.

CN119872749APending Publication Date: 2025-04-25CHONGQING XINBOZHI ELECTROMECHANICAL CO LTD
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Patent Information

Application Number
CN202411979349.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

The turning radius of existing tricycle steering devices is large, making it difficult to turn when facing narrow spaces.

Method used

The steering assembly with a worm gear and worm reducer mechanism is adopted to provide steering assistance through the rotating assembly, and power is output to the connecting assembly, so as to achieve simultaneous steering of the front wheel and the two rear wheels, reduce the turning radius, and adjust the center of gravity through the adjustment mechanism to improve stability.

Benefits of technology

It effectively shortens the turning radius, improves the turning ability of the tricycle in a narrow space, and enhances the stability during turning, reducing the probability of roll.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a steering gear assembly with a worm and gear speed reducing mechanism for a tricycle, and belongs to the technical field of tricycles. The steering gear assembly comprises a chassis, a front windshield shell is fixed to the top of the chassis, a rotating assembly is arranged at the top of the front windshield shell, and an output assembly is arranged on the rear side wall of an inner cavity of the front windshield shell; the bottom of the output assembly is provided with a linkage assembly, two shock absorbers are fixed to the bottom of the linkage assembly, a front wheel is rotationally connected between the two shock absorbers, two stabilizing assemblies are arranged on the rear side of the linkage assembly, the bottom of the chassis is provided with a power assembly, and the top of the power assembly is fixed to the chassis. An adjusting mechanism is arranged on the inner bottom wall of the chassis, and a rear wheel is fixed to the outer surface of each stabilizing assembly. According to the steering gear assembly with the worm and gear speed reducing mechanism for the tricycle, steering assistance is conducted through the rotating assembly, power is output to the linkage assembly, the turning radius is reduced, and the stability during turning can be considered.
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Description

Technical Field

[0001] The invention relates to the technical field of tricycles, in particular to a steering gear assembly with a worm gear reduction mechanism for a tricycle. Background Art

[0002] The most basic function of a tricycle steering device is to allow the driver to accurately control the direction of the vehicle. When the driver turns the steering wheel (or handlebars), the steering device converts this action into steering action of the wheels. If the steering device is equipped with a power-assist system, it can greatly reduce the driver's operating burden.

[0003] For example, a Chinese patent (publication number: CN118270165A) discloses a steering structure based on a disc-type electric tricycle, including a connecting plate, a connecting column fixed to the center of the upper surface of the connecting plate, and a control component fixed to the top of the connecting column. Shock-absorbing cylinders are arranged at both ends of the lower surface of the connecting plate, and a wheel is hinged at the bottom end of the shock-absorbing cylinder. A shock-absorbing spring with one end fixed to the connecting plate is arranged on the top of the shock-absorbing cylinder. A shock-absorbing shaft is slidably connected in the shock-absorbing cylinder, and the top end of the shock-absorbing shaft is fixed to the connecting plate. An outer rubber protective cylinder and an inner rubber protective cylinder are fixed to the upper surface of the shock-absorbing cylinder from the inside to the outside in sequence. By driving the hollow ring and the rubber connecting ring plate, the space between the outer rubber protective cylinder and the inner rubber protective cylinder can be divided, so that if cracks appear locally in the outer rubber protective cylinder, dust particles will not directly enter the connection between the shock-absorbing shaft and the shock-absorbing cylinder, so that the shock-absorbing cylinder and the shock-absorbing shaft can be better protected.

[0004] However, the turning radius of this structure is relatively large. Since the turning structure only acts on the front wheel structure, the rear wheel structure does not have a rotation function. In actual use, there may be insufficient turning space in narrow spaces, resulting in the need for repeated reverse turns. Therefore, a steering gear assembly with a worm gear reduction mechanism for a tricycle is proposed to solve the above problem. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a steering gear assembly with a worm gear reduction mechanism for a tricycle, which has the advantages of a small turning radius, etc., and solves the problem that a tricycle has difficulty turning in a narrow space due to a large turning radius.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a steering gear assembly with a worm gear reduction mechanism for a three-wheeled vehicle, comprising a chassis, a front windshield shell is fixed on the top of the chassis, a rotating assembly is provided on the top of the front windshield shell, which penetrates the top wall of the front windshield shell and extends to its inner cavity, an output assembly is provided on the rear side wall of the inner cavity of the front windshield shell and located below the rotating assembly, a linkage assembly for transmitting power is provided at the bottom of the output assembly and located below the chassis, two shock absorbers are fixed at the bottom of the linkage assembly, a front wheel is rotatably connected between the two shock absorbers, two stabilizing assemblies for assisting steering are provided on the rear side of the linkage assembly, a power assembly is provided at the bottom of the chassis and located between the two stabilizing assemblies, the top of the power assembly is fixed to the chassis, the inner bottom wall of the chassis is provided with an adjusting mechanism extending to the outside of the chassis and capable of improving the overall stability, and a rear wheel is fixed to the outer surface of each of the stabilizing assemblies;

[0007] The linkage assembly includes a cross bar fixed to the bottom of the output assembly, two mounting blocks are fixed to the bottom of the chassis, the inner side of each mounting block is movably connected with a connecting rod, both ends of each connecting rod are hinged with a yield rod, both ends of each connecting rod are respectively hinged with the cross bar and the stabilizing assembly through the yield rod, an abutment block is fixed on the outer surface of each connecting rod and located at the front side of the mounting block, a primary auxiliary spring is fixed between each abutment block and the mounting block, and a stabilizing portion is provided on the outer surface of each connecting rod;

[0008] Each of the stabilizing components includes a universal joint fixed to the output end of the powertrain, a transmission shaft is fixed to the side of each universal joint away from the powertrain, the outer surface of each transmission shaft is rotatably connected to a rotating frame through a bearing, the inner side of each rotating frame is hinged with a positioning shaft that passes through the rotating frame, each positioning shaft is fixed to the bottom of the chassis, the top of each rotating frame is fixed to a support block, and the top of each support block is fixed with a plane bearing fixed to the bottom of the chassis.

[0009] Furthermore, a damping cavity is provided on the front windshield shell, and the damping cavity is located above the inner cavity of the front windshield shell.

[0010] Furthermore, the rotating assembly includes an angle sensor fixed to the inner top wall of the front windshield shell, an active rod penetrating the inner top wall of the front windshield shell is fixed to the receiving end of the angle sensor, a damping part is provided on the outer surface of the active rod and located in the damping cavity, and a faucet is fixed on the top of the active rod and located above the front windshield shell.

[0011] Furthermore, the damping part includes an engagement ring engaged with the outer surface of the active rod, a torsion spring is fixed to the outer surface of the engagement ring, and the bottom of the torsion spring is fixed to the inner bottom wall of the damping chamber.

[0012] Furthermore, the output component includes a driving motor fixed to the inner front wall of the front windshield shell, the output shaft of the driving motor is fixed with an output worm, the right side of the output worm is meshed with an output worm wheel, and the inner side of the output worm wheel is fixed with a driving shaft that passes through the bottom wall of the front windshield shell and the chassis in sequence.

[0013] Furthermore, the bottom of the driving shaft is fixed to the top of the cross bar, the outer surface of the driving shaft is rotatably connected to a support frame via a bearing, the outer side of the support frame is fixed to the side wall of the inner cavity of the front windshield shell, and the output worm is rotatably connected to the inner rear wall of the front windshield shell via a bearing.

[0014] Furthermore, each of the stabilizing parts includes a mounting seat fixed to the bottom of the chassis, each of the connecting rods passes through the mounting seat, and a secondary auxiliary spring is fixed to the front side wall and the rear side wall of the inner cavity of each mounting seat. An actuator plate is abutted on the opposite side of each two secondary auxiliary springs, and the inner side of each actuator plate is fixed to the connecting rod.

[0015] Furthermore, two annular grooves are provided at the bottom of the chassis, and the two plane bearings are fixed to the inner top walls of the annular grooves.

[0016] Furthermore, the adjustment mechanism includes a double-axis motor fixed to the inner bottom wall of the chassis, and the two output shafts of the double-axis motor are fixed with adjusting worms, and the opposite sides of the two adjusting worms are rotatably connected to the inner wall of the chassis through bearings, and the rear sides of the two adjusting worms are meshed with adjusting worm wheels, and a threaded rod is fixed to the inner side of each adjusting worm wheel, and the outer surface of each threaded rod is meshed with a lifting rod extending to the outside of the chassis, and the top of each lifting rod is hinged with an articulation block, and the tops of the two articulation blocks are movably connected with a cargo board, and two T-slots are provided at the bottom of the cargo board, and each of the articulation blocks extends into the T-slot and is movably connected to the T-slot, and a battery is fixed to the bottom of the cargo board, and a spirit level is fixed to the bottom of the battery.

[0017] Furthermore, two micro hydraulic rods are hinged between the chassis and the cargo board, the rear side of each micro hydraulic rod is fixedly connected to a micro hydraulic pump, and the input end of each micro hydraulic pump is fixedly connected to a micro oil tank.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] 1. The three-wheeled vehicle uses a steering gear assembly with a worm gear reduction mechanism, which assists in steering by rotating the assembly and outputs power to the linkage assembly, thereby achieving the effect of simultaneous steering of the front wheel and the two rear wheels. In addition, since the steering amplitude of the rear wheels is relatively low, stability during turning can be taken into account.

[0020] 2. The three-wheeled vehicle uses a steering gear assembly with a worm gear reduction mechanism. The adjustment mechanism can adjust the center of gravity, effectively improve the stability of the three-wheeled vehicle when turning, and effectively reduce the probability of the three-wheeled vehicle tipping when turning.

[0021] 3. The three-wheeled vehicle uses a steering gear assembly with a worm gear reduction mechanism. The damping part can provide a certain damping for the rotation of the active rod, thereby improving the feel of use. At the same time, the rotational force of the torsion spring cannot overcome the friction between the active rod and the front windshield shell during use, which is insufficient to return the handlebar to its original position. This can improve stability during turning and prevent the damping part from snatching the handlebar from the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 A three-dimensional diagram of the connection relationship between the active rod and the damping part of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the linkage assembly of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the regulating mechanism of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0027] In the figure: 1 chassis, 2 front windshield, 3 rotating assembly, 301 rotation angle sensor, 302 active rod, 303 damping part, 3031 meshing ring, 3032 torsion spring, 304 faucet, 4 output assembly, 401 output worm, 402 output worm wheel, 403 active shaft, 5 linkage assembly, 501 cross bar, 502 yielding rod, 503 connecting rod, 504 mounting block, 505 abutment block, 506 primary auxiliary spring, 507 stabilizer Solid part, 5071 mounting seat, 5072 toggle plate, 5073 secondary auxiliary spring, 6 shock absorber, 7 power assembly, 8 stabilizing component, 801 transmission shaft, 802 rotating frame, 803 support block, 804 positioning shaft, 9 adjustment mechanism, 901 dual-axis motor, 902 adjusting worm, 903 adjusting worm wheel, 904 threaded rod, 905 lifting rod, 906 hinge block, 907 cargo plate, 908 battery, 909 level. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 2 In this embodiment, a steering gear assembly with a worm gear reduction mechanism for a tricycle is provided. A front windshield shell 2 is fixed on the top of the chassis 1. The front windshield shell 2 can provide a stable support force for the rotating component 3 and play a certain windshield role. The top of the front windshield shell 2 is provided with a rotating component 3 that penetrates the top wall of the front windshield shell 2 and extends to its inner cavity. The rear side wall of the inner cavity of the front windshield shell 2 and located below the rotating component 3 is provided with an output component 4 that penetrates the bottom wall of the front windshield shell 2 and the chassis 1. The rotating component 3 outputs the rotation data to the output component 4, further prompting the output component 4 to rotate. The bottom of the output component 4 and located at the chassis 1 A linkage component 5 for transmitting power is provided at the bottom, two shock absorbers 6 are fixed at the bottom of the linkage component 5, and the front wheels are rotatably connected between the two shock absorbers 6. Two stabilizing components 8 for assisting steering are provided on the rear side of the linkage component 5. A power assembly 7 is provided at the bottom of the chassis 1 and between the two stabilizing components 8. The top of the power assembly 7 is fixed to the chassis 1. An adjusting mechanism 9 extending to the outside of the chassis 1 and capable of improving the overall stability is provided on the inner bottom wall of the chassis 1. A rear wheel is fixed to the outer surface of each stabilizing component 8. By rotating the front wheel and the two rear wheels at the same time, the turning radius can be effectively shortened, so that the vehicle can face narrow roads more calmly.

[0030] It can be understood that a damping chamber is provided on the front windshield shell 2, and the damping chamber is located above the inner cavity of the front windshield shell 2. The rotating component 3 includes an angle sensor 301 fixed to the inner top wall of the front windshield shell 2. The angle sensor 301 is used to collect the user's rotation data, and then send the data to the drive motor synchronously to achieve a good transmission effect. The receiving end of the angle sensor 301 is fixed with an active rod 302 that passes through the inner top wall of the front windshield shell 2. A damping part 303 is provided on the outer surface of the active rod 302 and located in the damping chamber. The damping part 303 has a damping rod that can improve the rotation of the active rod 302, thereby indirectly improving the rotation feel. A faucet 304 is fixed to the top of the active rod 302 and located above the front windshield shell 2.

[0031] In addition, the damping part 303 includes an engaging ring 3031 engaged with the outer surface of the active rod 302, and a torsion spring 3032 is fixed to the outer surface of the engaging ring 3031. The bottom of the torsion spring 3032 is fixed to the inner bottom wall of the damping chamber. The torsion spring 3032 has a relatively low relative stiffness coefficient. When the torsion spring 3032 is twisted, its own elastic potential energy cannot overcome the overall friction of the rotating component 3, which can effectively ensure the stable rotation of the faucet 304 and improve the feel of rotating the faucet 304.

[0032] It needs to be further explained that the output component 4 includes a driving motor fixed to the inner front wall of the front windshield shell 2, the driving motor is used to output power, and the output shaft of the driving motor is fixed with an output worm 401, and the right side of the output worm 401 is meshed with an output worm wheel 402, and the output worm wheel 402 cooperates with the output worm 401 to reduce the rotation speed and increase the torque, so as to better drive the linkage component 5 to move, and the inner side of the output worm wheel 402 is fixed with a driving shaft 403 which passes through the bottom wall of the front windshield shell 2 and the chassis 1 in sequence, and the outer surface of the driving shaft 403 is rotatably connected to a support frame through a bearing, and the support frame can improve the stability of the driving shaft 403, thereby indirectly ensuring the stability of the front wheel, and the outer side of the support frame is fixed to the side wall of the inner cavity of the front windshield shell 2, and the output worm 401 is rotatably connected to the inner rear wall of the front windshield shell 2 through a bearing.

[0033] In this embodiment, a tricycle generally needs to carry a certain amount of cargo when in use. At this time, if manpower is used to control the rotation of the front wheel, it also needs to drive the linkage assembly 5 and the two rear wheels to rotate, which requires a large force. The use of a drive motor and an output worm 401 and an output worm wheel 402 in combination can effectively save manpower.

[0034] Please refer again Figure 1 and Figures 3 to 5In order to reduce the turning radius and improve stability, the linkage assembly 5 in this embodiment includes a cross bar 501 fixed to the bottom of the output assembly 4, the bottom of the driving shaft 403 is fixed to the top of the cross bar 501, and the cross bar 501 rotates with the driving shaft 403 as the rotation center. Two mounting blocks 504 are fixed to the bottom of the chassis 1, and the inner side of each mounting block 504 is movably connected to a connecting rod 503. The mounting blocks 504 and the stabilizing portion 507 are used to improve the stability of the connecting rod 503 and effectively limit the connecting rod 503. The two ends of each connecting rod 503 are fixed to the bottom of the chassis 1. The ends are hinged with a yield rod 502, and the two ends of each connecting rod 503 are respectively hinged to the cross bar 501 and the stabilizing component 8 through the yield rod 502. Multiple yield rods 502 can avoid interference between the two connecting rods 503 during movement, and further ensure that the two connecting rods 503 move according to a predetermined path. An abutment block 505 is fixed on the outer surface of each connecting rod 503 and on the front side of the mounting block 504. A primary auxiliary spring 506 is fixed between each abutment block 505 and the mounting block 504. A stabilizing portion 507 is provided on the outer surface of each connecting rod 503.

[0035] In addition, each stabilizing portion 507 includes a mounting seat 5071 fixed to the bottom of the chassis 1, each connecting rod 503 passes through the mounting seat 5071, and the front side wall and the rear side wall of the inner cavity of each mounting seat 5071 are fixed with secondary auxiliary springs 5073. The two secondary auxiliary springs 5073 can play a role in assisting the return to position. The opposite sides of each two secondary auxiliary springs 5073 are abutted against a dial plate 5072, and the inner side of each dial plate 5072 is fixed to the connecting rod 503. When the connecting rod 503 moves, it will drive the dial plate 5072 to move. At this time, one of the two secondary auxiliary springs 5073 is compressed, and the other is separated from the dial plate 5072. This structure can reduce welding. Compared with using only one secondary auxiliary spring 5073, the number of external force cycles on a single secondary auxiliary spring 5073 can be reduced, thereby improving the service life.

[0036] It can be known that each stabilizing component 8 includes a universal joint fixed to the output end of the power assembly 7, and a transmission shaft 801 is fixed to the side of each universal joint away from the power assembly 7. The outer surface of each transmission shaft 801 is rotatably connected to a rotating frame 802 through a bearing, and the inner side of each rotating frame 802 is hinged with a positioning shaft 804 that passes through the rotating frame 802, and each positioning shaft 804 is fixed to the bottom of the chassis 1. The distance between the positioning shaft 804 and the yield rod 502 is greater than the distance between the driving shaft 403 and the yield rod 502. This method can cause the rotation amplitude of the rear wheel to be smaller than the rotation amplitude of the front wheel, thereby improving the stability of the tricycle when turning, and the top of each rotating frame 802 is fixed to the support block 803, and the top of each support block 803 is fixed with a plane bearing fixed to the bottom of the chassis 1. Two annular grooves are provided at the bottom of the chassis 1, and the two plane bearings are fixed to the inner top wall of the annular groove, and the support block 803 plays a supporting role.

[0037] In addition, the adjustment mechanism 9 includes a dual-axis motor 901 fixed to the inner bottom wall of the chassis 1, and the two output shafts of the dual-axis motor 901 are fixed with an adjusting worm 902. The two output shafts of the dual-axis motor 901 are controlled separately to achieve the purpose of adjusting the angle of the cargo board 907. When the cargo board 907 carries goods, the center will shift upward, and it may be unstable when turning. By adjusting the angle of the cargo board 907 and changing the center of gravity, the steering stability can be improved. The opposite sides of the two adjusting worms 902 are rotatably connected to the inner wall of the chassis 1 through bearings, and the rear sides of the two adjusting worms 902 are meshed with adjusting worm wheels 903. Each adjusting worm wheel 903 has a Threaded rods 904 are fixed on the inner side, and the outer surface of each threaded rod 904 is meshed with a lifting rod 905 extending to the outside of the chassis 1. The top of each lifting rod 905 is hinged with an articulated block 906. The tops of the two articulated blocks 906 are movably connected to a cargo board 907. Two T-slots are provided at the bottom of the cargo board 907. The T-slots can ensure the stability of the connection of the articulated blocks 906 and avoid interference. Each articulated block 906 extends into the T-slot and is movably connected to the T-slot. A battery 908 is fixed to the bottom of the cargo board 907, and a spirit level 909 is fixed to the bottom of the battery 908. The spirit level 909 is used to monitor the angular deviation of the cargo board 907.

[0038] Furthermore, two micro hydraulic rods are hinged between the chassis 1 and the cargo board 907, and the rear side of each micro hydraulic rod is fixedly connected to a micro hydraulic pump. The input end of each micro hydraulic pump is fixedly connected to a micro oil tank, and the two ends of the micro hydraulic rod are respectively hinged to the chassis 1 and the cargo board 907. The use of the micro hydraulic rod can improve the stability of the cargo board 907. Since the angle of the cargo board 907 is adjusted in a small range, the micro hydraulic rod can meet the distance when the angle of the cargo board 907 is adjusted.

[0039] In this embodiment, the micro hydraulic rod can prevent the cargo pallet 907 from rocking back and forth, thereby improving the stability of the cargo pallet 907. When the level 909 detects a slight deviation in the angle, it will prompt the dual-axis motor 901 to start, adjust the angle of the cargo pallet 907, and adjust the center of gravity.

[0040] It can be understood that the power output by the output component 4 is synchronously transmitted to the two stabilizing components 8 through the linkage component 5. Due to the presence of the universal joint, uninterrupted power output can be ensured, thereby achieving small radius turning, and the adjustment mechanism 9 can improve stability during turning.

[0041] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The power supply provided by the battery is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0042] The working principle of the above embodiment is:

[0043] (1) When turning is required, the user turns the handlebar 304, and the power is transmitted to the angle sensor 301 through the active rod 302. The angle sensor 301 simultaneously sends data to the drive motor, prompting the drive motor to drive the output worm 401 to rotate, and further drives the active shaft 403 in the output worm gear 402 to rotate. When the cross bar 501 rotates, due to the action of the two shock absorbers 6, the front wheels will be driven to rotate. At the same time, the rotation of the cross bar 501 drives the two connecting rods 503 to move in opposite directions. With the action of the positioning shaft 804 and the rotating frame 802, the two rear wheels rotate in the same direction, achieving the effect of simultaneous steering of the front and rear wheels, effectively reducing the turning radius.

[0044] (2) When the level meter 909 detects that the cargo board 907 is in a non-horizontal state, it will prompt the dual-axis motor 901 to start up, and by individually controlling the speed and direction of the two output shafts of the dual-axis motor 901, the two lifting rods 905 can be independently controlled for height adjustment. In conjunction with the two micro hydraulic rods, good stability can be provided for the angle adjustment of the cargo board 907, thereby ensuring that the tricycle has good stability when turning or passing through rugged roads, reducing the probability of the tricycle overturning.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A steering gear assembly with a worm gear reduction mechanism for a tricycle, comprising a chassis (1), characterized in that: A front windshield shell (2) is fixed on the top of the chassis (1); a rotating assembly (3) is provided on the top of the front windshield shell (2) and penetrates the top wall of the front windshield shell (2) and extends to the inner cavity thereof; an output assembly (4) is provided on the rear side wall of the inner cavity of the front windshield shell (2) and below the rotating assembly (3) and penetrates the bottom wall of the front windshield shell (2) and the chassis (1); a linkage assembly (5) for transmitting power is provided on the bottom of the output assembly (4) and below the chassis (1); two linkage assemblies (5) are fixed on the bottom of the linkage assembly (5) shock absorber (6), a front wheel is rotatably connected between two of the shock absorbers (6), two stabilizing components (8) for assisting steering are arranged on the rear side of the linkage component (5), a power assembly (7) is arranged at the bottom of the chassis (1) and between the two stabilizing components (8), the top of the power assembly (7) is fixed to the chassis (1), an inner bottom wall of the chassis (1) is provided with an adjustment mechanism (9) extending outside the chassis (1) and capable of improving overall stability, and a rear wheel is fixed to the outer surface of each of the stabilizing components (8); The linkage assembly (5) comprises a cross bar (501) fixed to the bottom of the output assembly (4); two mounting blocks (504) are fixed to the bottom of the chassis (1); the inner side of each mounting block (504) is movably connected with a connecting rod (503); both ends of each connecting rod (503) are hinged with a yielding rod (502); both ends of each connecting rod (503) are respectively hinged with the cross bar (501) and the stabilizing assembly (8) through the yielding rod (502); an abutting block (505) is fixed on the outer surface of each connecting rod (503) and located in front of the mounting block (504); a primary auxiliary spring (506) is fixed between each abutting block (505) and the mounting block (504); and a stabilizing portion (507) is provided on the outer surface of each connecting rod (503); Each of the stabilizing components (8) comprises a universal joint fixed to the output end of the power assembly (7); a transmission shaft (801) is fixed to the side of each of the universal joints away from the power assembly (7); the outer surface of each of the transmission shafts (801) is rotatably connected to a rotating frame (802) via a bearing; the inner side of each of the rotating frames (802) is hinged with a positioning shaft (804) that passes through the rotating frame (802); each of the positioning shafts (804) is fixed to the bottom of the chassis (1); the top of each of the rotating frames (802) is fixed to a support block (803); and the top of each of the support blocks (803) is fixed with a plane bearing that is fixed to the bottom of the chassis (1).

2. A steering gear assembly with a worm gear reduction mechanism for a tricycle according to claim 1, characterized in that: The front windshield shell (2) is provided with a damping chamber, and the damping chamber is located above the inner chamber of the front windshield shell (2).

3. A steering gear assembly with a worm gear reduction mechanism for a tricycle according to claim 2, characterized in that: The rotating assembly (3) comprises a rotation angle sensor (301) fixed to the inner top wall of the front windshield shell (2); an active rod (302) penetrating the inner top wall of the front windshield shell (2) is fixed to the receiving end of the rotation angle sensor (301); a damping portion (303) is provided on the outer surface of the active rod (302) and located in the damping cavity; and a faucet (304) is fixed to the top of the active rod (302) and located above the front windshield shell (2).

4. A steering gear assembly with a worm gear reduction mechanism for a tricycle according to claim 3, characterized in that: The damping part (303) comprises a meshing ring (3031) meshed with the outer surface of the active rod (302), a torsion spring (3032) is fixed to the outer surface of the meshing ring (3031), and the bottom of the torsion spring (3032) is fixed to the inner bottom wall of the damping chamber.

5. The steering gear assembly with worm gear reduction mechanism for a tricycle according to claim 1, characterized in that: The output assembly (4) comprises a driving motor fixed to the inner front wall of the front windshield housing (2); an output worm (401) is fixed to the output shaft of the driving motor; an output worm gear (402) is meshed on the right side of the output worm gear (401); a driving shaft (403) is fixed on the inner side of the output worm gear (402) and passes through the bottom wall of the front windshield housing (2) and the chassis (1) in sequence.

6. A steering gear assembly with a worm gear reduction mechanism for a tricycle according to claim 5, characterized in that: The bottom of the driving shaft (403) is fixed to the top of the cross bar (501), the outer surface of the driving shaft (403) is rotatably connected to a support frame via a bearing, the outer side of the support frame is fixed to the side wall of the inner cavity of the front windshield shell (2), and the output worm gear (401) is rotatably connected to the inner rear wall of the front windshield shell (2) via a bearing.

7. A steering gear assembly with a worm gear reduction mechanism for a tricycle according to claim 1, characterized in that: Each of the stabilizing parts (507) comprises a mounting seat (5071) fixed to the bottom of the chassis (1); each of the connecting rods (503) passes through the mounting seat (5071); a secondary auxiliary spring (5073) is fixed to the front side wall and the rear side wall of the inner cavity of each of the mounting seats (5071); a dial (5072) is abutted on the opposite side of each of the two secondary auxiliary springs (5073); and the inner side of each of the dials (5072) is fixed to the connecting rod (503).

8. The steering gear assembly with worm gear reduction mechanism for a tricycle according to claim 1, characterized in that: The bottom of the chassis (1) is provided with two annular grooves, and the two plane bearings are fixed to the inner top walls of the annular grooves.

9. The steering gear assembly with worm gear reduction mechanism for a tricycle according to claim 1, characterized in that: The adjustment mechanism (9) comprises a double-axis motor (901) fixed to the inner bottom wall of the chassis (1), the two output shafts of the double-axis motor (901) are both fixed with an adjustment worm (902), the opposite sides of the two adjustment worms (902) are rotatably connected to the inner side wall of the chassis (1) through a bearing, the rear sides of the two adjustment worms (902) are meshed with an adjustment worm wheel (903), the inner side of each adjustment worm wheel (903) is fixed with a threaded rod (904), and the outer surface of each threaded rod (904) is They are all engaged with a lifting rod (905) extending outside the chassis (1), the top of each lifting rod (905) is hinged with a hinge block (906), the tops of the two hinge blocks (906) are movably connected to a cargo board (907), the bottom of the cargo board (907) is provided with two T-slots, each of the hinge blocks (906) extends into the T-slot and is movably connected to the T-slot, the bottom of the cargo board (907) is fixed with a battery (908), and the bottom of the battery (908) is fixed with a spirit level (909).

10. A steering gear assembly with a worm gear reduction mechanism for a tricycle according to claim 9, characterized in that: Two micro hydraulic rods are hinged between the chassis (1) and the cargo plate (907), the rear side of each micro hydraulic rod is fixedly connected to a micro hydraulic pump, and the input end of each micro hydraulic pump is fixedly connected to a micro oil tank.

Citation Information

Patent Citations

  • Steering structure based on disc type electric tricycle

    CN118270165A