Wheel carrier assembly with adjustable wheel positions and tractor applying same

Abstract

The utility model relates to the technical field of tractors, in particular to a wheel carrier assembly with an adjustable wheel position and a tractor applying the same, the wheel carrier assembly with the adjustable wheel position comprises a wheel carrier and a front wheel rotationally arranged on the wheel carrier, and a first rotating position and a second rotating position are arranged on the side face of the wheel carrier. The axis of the first rotating position and the rotating center of the wheel carrier are located in the same plane. The axis of the second rotating position and the rotating center of the wheel frame are arranged in a staggered mode, and the front wheel is rotationally installed in the first rotating position or the second rotating position. By arranging the first rotating position and the second rotating position on the wheel carrier, the position switching between the rotating shaft of the front wheel and the rotating center of the wheel carrier is realized, so that the adjustment of the position of the front wheel under different working conditions is met, the operation of the tractor in the working process is smoother, and the technical problem that the position of the front wheel cannot be adjusted in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of towing vehicle, especially a wheel frame assembly with adjustable wheel position and a towing vehicle using the same. BACKGROUND

[0002] A towing vehicle is a towing device specially used for towing or pushing goods, containers or other types of vehicles. It is widely used in industries such as warehousing, sorting, airport baggage handling, production line logistics, rescue, goods transfer, and agriculture. Different towing devices are needed for different working conditions to ensure the normal operation of the towing vehicle under special conditions.

[0003] Chinese patent CN211442351U discloses an electric towing vehicle. The electric towing vehicle includes a rear axle motor, rear wheels and front wheels, a connecting frame, a handlebar, a handle, a power box, and a ball seat. The ball of the ball seat is extracted and connected to an external logistics cart. Then, the rear axle motor drives the rear wheels, and the external logistics cart connected to the electric towing vehicle is moved by manually holding the handlebar handle. The utility model has a simple structure and is convenient to use. The rear axle motor drives the rear wheels to rotate, greatly saving manpower.

[0004] However, in this technical solution, the front wheels are installed on the connecting frame, only realizing the function of universal wheels. When the rotational position of the front wheels needs to be adjusted for different working conditions, the adjustment cannot be made. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies of the prior art and provides a wheel frame assembly with adjustable wheel position and a towing vehicle using the same. The first rotation position and the second rotation position are arranged on the wheel frame to switch the position between the rotational shaft of the front wheels and the rotation center of the wheel frame, thereby meeting the adjustment of the position of the front wheels under different working conditions and ensuring smoother operation of the towing vehicle during work. The technical problem of the prior art that the position of the front wheels cannot be adjusted is solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A wheel frame assembly with adjustable wheel position includes a wheel frame and a front wheel rotatably arranged on the wheel frame. The side surface of the wheel frame is provided with a first rotation position and a second rotation position. The axis of the first rotation position is in the same plane as the rotation center of the wheel frame. The axis of the second rotation position is arranged in a staggered manner with the rotation center of the wheel frame. The front wheel is rotatably installed in the first rotation position or the second rotation position.

[0008] As an improvement, the first rotation position and the second rotation position are located at the same horizontal height.

[0009] As an improvement, the wheel frame is provided with a track connecting the first rotation position and the second rotation position.

[0010] As an improvement, the track is a concave structure.

[0011] As an improvement, the wheel frame is provided with a track connecting the first rotation position and the second rotation position.

[0012] As an improvement, the locking assembly is a locking buckle.

[0013] As an improvement, the connecting flange is provided above the wheel frame.

[0014] As an improvement, the inner and outer of the connecting flange are respectively provided with an inner bearing and an outer bearing.

[0015] Another object of the present application is to provide a tractor, which overcomes the shortcomings of the prior art, and is characterized in that it comprises a vehicle body and a wheel position adjustable wheel frame assembly as described above installed at the front end of the vehicle body.

[0016] The present application has the following advantages:

[0017] (1) The present application sets the first rotation position and the second rotation position on the wheel frame, switches the position between the rotation shaft of the front wheel and the rotation center of the wheel frame, adjusts the position of the front wheel under different working conditions, and ensures smooth operation of the tractor during operation.

[0018] (2) The present application sets a transition track between the first rotation position and the second rotation position, and cooperates with the setting of the locking assembly to realize quick adjustment of the front wheel position, without the need to disassemble and conveniently and efficiently adjust the front wheel position.

[0019] In summary, the present application has the advantage of quick adjustment of the front wheel position. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The present application is a schematic diagram of the overall structure of the wheel frame assembly;

[0021] Figure 2 The present application is a schematic diagram of the wheel frame structure;

[0022] Figure 3 The present application is a schematic diagram of the overall structure of the second embodiment. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Example 1

[0026] like Figures 1-2 As shown, this embodiment provides a wheel frame assembly with adjustable wheel position, including a wheel frame 1 and a front wheel 3 rotatably mounted on the wheel frame 1. The wheel frame 1 has a first rotation position 11 and a second rotation position 12 on its side. The axis of the first rotation position 11 is located in the same plane as the rotation center 223 of the wheel frame 22; the axis of the second rotation position 12 is offset from the rotation center 223 of the wheel frame 22. The front wheel 3 is rotatably mounted in either the first rotation position 11 or the second rotation position 12.

[0027] It should be noted that the wheel frame 1 is preferably an inverted U-shaped structure, formed by welding or bending of sheet metal, and the front wheel 3 is installed inside the U-shaped structure; the first rotation position 11 and the second rotation position 12 can be two independently set through holes for fixing the rotation shaft of the front wheel 3. When it is necessary to switch the position of the front wheel 3 in the above two rotation positions, the rotation shaft is pulled out and the front wheel 3 is installed in the other rotation position to complete the switching of the rotation position of the front wheel 3.

[0028] Preferably, the first rotating position 11 and the second rotating position 12 are located at the same horizontal height, so as to keep the rotating center of the front wheel unchanged after adjustment.

[0029] Preferably, the wheel frame 1 is provided with a track 13 connecting the first rotating position 11 and the second rotating position 12, so that the rotating shaft of the front wheel 3 moves along the track 13 between the first rotating position 11 and the second rotating position 12, thereby realizing efficient adjustment of the position of the front wheel 3, and further realizing efficient and rapid adjustment of the position of the front wheel 3 in cooperation with the locking buckle structure.

[0030] Preferably, the track 13 is a concave structure; it should be noted that through the concave structure, the front wheel can quickly run to the other rotating position after lifting the wheel frame 1 by gravity, and at the same time, the position of the front wheel is kept unchanged during the force process of the wheel frame, thereby improving the running stability.

[0031] Further, the locking assembly 4 for fixing the position of the front wheel 3 in the first rotating position 11 or the second rotating position 12 is further included, and the locking assembly 4 is installed on the rotating shaft of the front wheel 3.

[0032] Further, the locking assembly 4 is a locking buckle; it should be noted that the locking buckle is a commonly used structure, and the detailed structure is not described in detail, and the locking assembly of the present embodiment can also be locked by a bolt structure.

[0033] Preferably, the connecting flange 2 provided above the wheel frame 1 is further included.

[0034] As an improvement, the inner and outer of the connecting flange 2 are respectively provided with an inner bearing and an outer bearing; the wheel frame assembly is installed, specifically, the outer bearing is connected with the vehicle body, so that the wheel frame assembly is rotatably installed on the vehicle body, and the inner bearing can indirectly rotatably install the wheel frame of the towing vehicle on the vehicle body, thereby realizing the rotation of the wheel frame assembly.

[0035] Embodiment two

[0036] As shown in Figure 3 the present embodiment provides a towing vehicle, which comprises a vehicle body and a wheel frame assembly with adjustable wheel position as described in embodiment one installed at the front end of the vehicle body.

[0037] It should be noted that when the front wheel 3 changes direction in an active manner, i.e., the swinging direction of the front wheel 3 is changed by external force, thereby controlling the walking direction of the towing vehicle, preferably, the front wheel 3 is located in the first rotating position 11, thereby improving the smoothness, stability and convenience of the steering process.

[0038] The current wheel 3 changes direction in a passive manner, that is, the front wheel 3 is a universal wheel, and no external force directly changes the walking direction of the front wheel 3, and the passive change of direction is formed by the friction between the front wheel 3 and the ground through the swing of the towing vehicle body 10.

[0039] It should be noted that when the current wheel 3 is located in the first rotating position 11, if the wheel frame 22 is connected with the vehicle body 10, at this time, it is particularly difficult to control the steering of the front wheel 3 through the vehicle body 1, which affects the smoothness of operation. If the front wheel 3 is adjusted to the second rotating position 12, a force arm structure is formed between the rotation center of the rotation center 223 and the second rotating position 12, which improves the smoothness of the steering of the front wheel 3, thereby improving the operator's body feeling of the towing vehicle.

[0040] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wheel position adjustable caster assembly comprising a caster and a front wheel rotatably mounted to said caster, characterized by, The side of the wheel carrier is provided with a first rotation position and a second rotation position, the axis of the first rotation position is in the same plane with the rotation center of the wheel carrier; the axis of the second rotation position is dislocated with the rotation center of the wheel carrier, and the front wheel is rotationally installed in the first rotation position or the second rotation position.

2. A wheel position adjustable wheel carriage assembly according to claim 1, wherein, The first rotation position and the second rotation position are in the same horizontal height.

3. A wheel position adjustable wheel carriage assembly according to claim 1, wherein, The wheel carrier is provided with a track connecting the first rotation position and the second rotation position.

4. A wheel position adjustable wheel carriage assembly according to claim 3, wherein, The track is a concave structure.

5. A wheel position adjustable wheel carriage assembly according to claim 1 wherein, Further comprising a locking assembly for fixing the front wheel in the first rotation position or the second rotation position, the locking assembly is installed on the rotation shaft of the front wheel.

6. A wheel position adjustable wheel carriage assembly according to claim 5, wherein, The locking assembly is a locking buckle.

7. A wheel position adjustable wheel carriage assembly according to claim 1 wherein, Further comprising a connecting flange arranged above the wheel carrier.

8. A wheel position adjustable wheel carriage assembly according to claim 7, wherein, The inner and outer of the connecting flange are respectively provided with an inner bearing and an outer bearing.

9. A towing vehicle characterized in that Comprising a vehicle body and a wheel carrier assembly with adjustable wheel position as claimed in any one of claims 1-8 installed on the front end of the vehicle body.

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