Middle disc type three-wheel steering device

Abstract

The utility model relates to the technical field of tricycle steering devices, and discloses a middle disc type tricycle steering device. The steering shaft sleeve is fixedly connected with the vehicle body; the direction shaft is rotationally arranged in the steering shaft sleeve; the gear ring is fixedly connected with the direction shaft, and the inner side edge of the gear ring is of an arc-shaped structure with the axis of the direction shaft as the axis. Driven teeth are arranged on the inner side edge of the gear ring; the driving wheel carrier is fixedly arranged on the vehicle body between the direction shaft and the driven gear ring; the driving gear is rotationally arranged on the driving wheel frame, and the driving gear is in meshed connection with the driven teeth on the inner side of the gear ring; the steering wheel has the advantages that efficient steering force transmission is achieved through meshing connection of the driven teeth on the inner side edge of the gear ring and the driving gear, the driving gear drives the gear ring so that force needed for driving steering can be reduced, impact force of a direction shaft on the steering wheel can be reduced when tires are driven by the road surface to swing, and the steering wheel is more stable. The control capability of the direction shaft can be improved through the steering wheel.

Description

Technical Field

[0001] The present application relates to the technical field of three-wheeled vehicle steering devices, for example, to a centrally mounted disc three-wheeled steering device. Background Art

[0002] At present, electric tricycles are three-wheeled transport vehicles that are powered by batteries and driven by electric motors and are used for pulling goods or people. The steering structures currently used in tricycles all use a handle structure.

[0003] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0004] However, although the handle structure is simple, its stability is poor. When driving on a rough road, the direction deflection is large, and a lot of force is needed to stabilize the handle. Utility Model Content

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The disclosed embodiment provides a center-mounted disc three-wheel steering device to solve the problem that the direction of a three-wheeled vehicle is deflected due to road conditions and is not conducive to controlling the direction.

[0007] In some embodiments, the central disc three-wheel steering device includes: a steering sleeve, fixedly connected to the vehicle body; a steering shaft, rotatably arranged in the steering sleeve; a ring gear, fixedly connected to the steering shaft, and the inner side is an arc-shaped structure with the axis of the steering shaft as the axis center; and the inner side of the ring gear is provided with driven teeth; a driving wheel frame, fixedly arranged on the vehicle body between the steering shaft and the driven ring gear; a driving gear, rotatably arranged on the driving wheel frame, and the driving gear is meshed with the driven teeth on the inner side of the ring gear; the driving gear is connected to the steering wheel through a universal joint.

[0008] In some embodiments, a fixed frame is provided on the driving wheel frame, an articulated frame is hingedly provided on the fixed frame, a direction rod is rotatably provided on the articulated frame, and the direction rod is connected to the driving gear via a universal joint.

[0009] In some embodiments, a sliding groove is provided on a side of the fixing frame away from the driving gear, a locking screw is fixed on a side of the articulated frame, and the locking screw is slidably arranged in the sliding groove.

[0010] In some embodiments, the slide groove is arranged in an arc shape with the hinge axis of the hinge frame as the center.

[0011] In some embodiments, the locking screw is threadedly connected to the hinge frame, and the locking screw can be fixedly pressed on the sliding groove.

[0012] In some embodiments, a switch assembly is fixed on the articulated frame, and the switch assembly is sleeved on the direction rod.

[0013] In some embodiments, a steering wheel is fixed on the steering rod.

[0014] In some embodiments, one end of the steering rod connected to the steering wheel is a spline shaft structure, the middle of the steering wheel is a spline sleeve structure, and the steering rod and the steering wheel are spline-connected (the spline connection can fine-tune the steering wheel position).

[0015] In some embodiments, a front wheel fixing fork is provided at the bottom of the steering shaft, and shock absorber rods are fixed on both sides of the front wheel fixing fork.

[0016] In some embodiments, the ring gear is a fan-shaped structure.

[0017] The centrally mounted disc-type three-wheel steering device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] The meshing connection between the driven teeth on the inner side of the ring gear and the drive gear enables efficient steering force transmission. The driving gear drives the ring gear, which can reduce the force required for steering. It can also reduce the impact force of the steering shaft on the steering wheel when the tire swings due to the road surface, thereby increasing the controllability of the steering shaft through the steering wheel.

[0019] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0021] Figure 1 Schematic diagram of the structure of a centrally mounted disc three-wheel steering device provided by an embodiment of the present disclosure;

[0022] Figure 2 Schematic diagram of the internal structure of a centrally mounted disc-type three-wheel steering device provided by an embodiment of the present disclosure;

[0023] Figure 3 This is a schematic structural diagram of a driving wheel frame, a fixed frame, and an articulated frame of a center-mounted disc-type three-wheel steering device provided by an embodiment of the present disclosure;

[0024] Figure 4It is a schematic diagram of the drive gear and ring gear structure of the central disc three-wheel steering device provided in an embodiment of the present disclosure.

[0025] Reference numerals:

[0026] 100, steering bushing; 101, vehicle body; 102, steering shaft; 200, ring gear; 201, driven gear; 300, driving wheel carrier; 301, driving gear; 302, universal joint; 400, steering wheel; 303, fixed frame; 304, articulated frame; 305, steering rod; 306, slide; 307, locking screw; 401, switch assembly; 103, front wheel fixed fork; 104, shock absorber rod DETAILED DESCRIPTION

[0027] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0029] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0030] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0031] Unless otherwise stated, the term "plurality" means two or more.

[0032] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0033] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0034] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0035] Combine Figure 1-4 As shown, the embodiment of the present disclosure provides a central disc three-wheel steering device, including a steering sleeve 100, which is fixedly connected to a vehicle body 101; a steering shaft 102, which is rotatably arranged in the steering sleeve 100; a ring gear 200, which is fixedly connected to the steering shaft 102, and the inner side is an arc structure with the axis of the steering shaft 102 as the axis center; and the inner side of the ring gear 200 is provided with a driven tooth 201; a driving wheel frame 300, which is fixedly arranged on the vehicle body 101 between the steering shaft 102 and the driven tooth ring 201; a driving gear 301, which is rotatably arranged on the driving wheel frame 300, and the driving gear 301 is meshed with the driven tooth 201 on the inner side of the ring gear 200; the driving gear 301 is connected to the steering wheel 400 through a universal joint 302.

[0036] The central disc three-wheel steering device provided by the embodiment of the present disclosure is used. A steering sleeve 100 is fixedly connected to the three-wheel vehicle body 101. A steering shaft 102 is provided for rotation in the sleeve. The vehicle can be steered by rotating the steering shaft 102. The steering shaft 102 is axially rotatably provided in the sleeve. A gear ring 200 is fixedly connected to the upper end of the steering shaft 102. The middle part of the gear ring 200 has an annular structure with a cavity. One side of the gear ring 200 is fixedly connected to the steering shaft 102. The inner side wall of the gear ring 200 away from the steering shaft 102 is an arc-shaped structure. The inner side wall of the arc takes the axis of the steering shaft 102 as the center. The distances between each point of the arc of the inner side wall and the axis center are equal. A driven tooth 201 is provided on the inner side wall of the arc. A driving wheel frame 300 is also fixedly connected to the vehicle body 101. The driving wheel frame 300 is arranged between the steering shaft 102 and the driven gear 201. The ring gear 200 is sleeved on the driving wheel frame 300. A driving gear 301 is provided on the driving wheel frame 300. The driving gear 301 is arranged on the inner side of the ring gear 200. The driving gear 301 is meshed with the driven gear 201 of the ring gear 200. By rotating the driving gear 301, the ring gear 200 can be driven to swing around the steering shaft 102, and the steering shaft 102 can be driven to rotate for steering. A universal joint 302 is connected to the driving gear 301, and a steering wheel 400 is connected to the universal joint 302. The angle of the steering wheel 400 can be adjusted through the universal joint 302.

[0037] Optionally, a fixing frame 303 is provided on the driving wheel frame 300 , an articulated frame 304 is hingedly provided on the fixing frame 303 , a direction rod 305 is rotatably provided on the articulated frame 304 , and the direction rod 305 is connected to the driving gear 301 via a universal joint 302 .

[0038] In this way, the fixed frame 303 on the upper part of the driving wheel frame 300 can serve as a connection to the articulated frame 304. The articulated frame 304 is hingedly connected to the fixed frame 303. A direction rod 305 is provided on the articulated frame 304. The direction rod 305 can rotate on the articulated frame 304. The direction rod 305 can swing on the fixed frame 303 through the articulated frame 304, so that the position of the direction rod 305 can be adjusted. The direction rod 305 is connected to the driving gear 301 through the universal joint 302, so that the driving gear 301 can still be driven to rotate when the direction rod 305 is tilted.

[0039] Optionally, a sliding groove 306 is provided on a side of the fixing frame 303 away from the driving gear 301 , and a locking screw 307 is fixedly provided on a side of the articulated frame 304 , and the locking screw 307 is slidably disposed in the sliding groove 306 .

[0040] In this way, the sliding groove 306 on the side of the fixing frame 303 can accommodate the locking screw 307 to slide in the sliding groove 306. By tightening the locking screw 307, the articulated frame 304 can be fixed to the fixing frame 303 to prevent the articulated frame 304 from continuing to swing. When the locking bolt is loosened, the articulated frame 304 can be swung on the fixing frame 303, thereby realizing the angle adjustment of the articulated frame 304.

[0041] Optionally, the sliding groove 306 is arranged in an arc shape with the hinge axis of the hinge frame 304 as the center.

[0042] In this way, the arc-shaped design of the slide groove 306 allows the locking screw 307 on the articulated frame 304 to slide stably therein, and the locking screw 307 can swing along the arc of the articulated frame 304, which can prevent the locking screw 307 from tilting when sliding, causing the articulated frame 304 to be unable to swing.

[0043] Optionally, the locking screw 307 is threadedly connected to the hinge frame 304 , and the locking screw 307 can be fixedly pressed on the sliding groove 306 .

[0044] In this way, the locking screw 307 is connected to the fixing frame 303 through a threaded connection, and the locking screw 307 can be pressed onto the articulated frame 304 by tightening the locking screw 307 , so that the articulated frame 304 can be fixed on the fixing frame 303 .

[0045] Optionally, a switch assembly 401 is fixed on the articulated frame 304 , and the switch assembly 401 is sleeved on the direction rod 305 .

[0046] In this way, the switch assembly 401 on the articulated frame 304 can control the vehicle. When the control switch is set on the articulated frame 304, it can swing along with the articulated frame 304, so that the switch assembly 401 can move along with the steering wheel 400.

[0047] Optionally, a steering wheel 400 is fixed on the steering rod 305 .

[0048] In this way, the steering wheel 400 on the steering rod 305 can facilitate the rotation of the steering rod 305 , and the force of the steering wheel 400 driving the steering rod 305 can be reduced.

[0049] Optionally, one end of the steering rod 305 connected to the steering wheel 400 is a spline shaft structure, the middle part of the steering wheel 400 is a spline sleeve structure, and the steering rod 305 and the steering wheel 400 are spline-connected.

[0050] In this way, the steering rod 305 and the steering wheel 400 are splined to increase the connection strength between the steering wheel 400 and the steering rod 305. The steering wheel 400 has a spline sleeve structure and the steering rod 305 has a spline structure, so that the steering wheel 400 can slide on the steering rod 305, which makes it easy to adjust the height of the steering wheel 400.

[0051] Optionally, a front wheel fixing fork 103 is provided at the bottom of the steering shaft 102 , and shock absorbing rods 104 are fixedly provided on both sides of the front wheel fixing fork 103 .

[0052] In this way, the front wheel fixing fork 103 of the steering shaft 102 can play the role of connecting the shock absorber rod 104, the wheel can be installed between the two shock absorber rods 104, and the shock absorber rod 104 can perform shock absorption.

[0053] Optionally, the ring gear 200 is a fan-shaped structure.

[0054] In this way, the sector-shaped structure of the ring gear 200 can reduce the space occupied by the ring gear 200 .

[0055] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A central disc three-wheel steering device, characterized in that: include: A steering shaft sleeve (100) is fixedly connected to the vehicle body (101); A steering shaft (102) is rotatably disposed in the steering sleeve (100); The gear ring (200) is fixedly connected to the steering shaft (102), and the inner side thereof is an arc-shaped structure with the axis of the steering shaft (102) as the axis center; and the inner side of the gear ring (200) is provided with a driven tooth (201); A driving wheel frame (300) is fixedly arranged on the vehicle body (101) between the steering shaft (102) and the driven gear ring (200); A driving gear (301) is rotatably mounted on the driving wheel frame (300), and the driving gear (301) is meshedly connected with a driven tooth (201) on the inner side of the gear ring (200); The driving gear (301) is connected to the steering wheel (400) via a universal joint (302).

2. The central disc type three-wheel steering device according to claim 1, characterized in that: The driving wheel frame (300) is provided with a fixed frame (303), the fixed frame (303) is hingedly provided with an articulated frame (304), the articulated frame (304) is rotatably provided with a direction rod (305), and the direction rod (305) is connected to the driving gear (301) via a universal joint (302).

3. The central disc type three-wheel steering device according to claim 2, characterized in that: A sliding groove (306) is provided on a side of the fixed frame (303) away from the driving gear (301), and a locking screw (307) is fixedly provided on the side of the articulated frame (304), and the locking screw (307) is slidably arranged in the sliding groove (306).

4. The central disc type three-wheel steering device according to claim 3, characterized in that: The slide groove (306) is arranged in an arc shape with the hinge axis of the hinge frame (304) as the center.

5. The central disc type three-wheel steering device according to claim 4, characterized in that: The locking screw (307) is threadedly connected to the hinge frame (304), and the locking screw (307) can be fixedly pressed on the sliding groove (306).

6. The central disc type three-wheel steering device according to claim 5, characterized in that: A switch assembly (401) is fixedly provided on the articulated frame (304), and the switch assembly (401) is sleeved on the direction rod (305).

7. The central disc type three-wheel steering device according to claim 2, characterized in that: A steering wheel (400) is fixedly provided on the steering rod (305).

8. The central disc type three-wheel steering device according to claim 7, characterized in that: One end of the steering rod (305) connected to the steering wheel (400) is a spline shaft structure, the middle part of the steering wheel (400) is a spline sleeve structure, and the steering rod (305) and the steering wheel (400) are spline-connected (the spline connection can fine-tune the position of the steering wheel).

9. The center-disc three-wheel steering device according to claim 1, characterized in that: A front wheel fixing fork (103) is provided at the bottom of the steering shaft (102), and shock absorbing rods (104) are fixedly provided on both sides of the front wheel fixing fork (103).

10. The center-disc three-wheel steering device according to claim 1, characterized in that: The gear ring (200) is a fan-shaped structure.

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