KR101772978B1

KR101772978B1 - Wheel mounting apparatus of agriculture vehicle

Info

Publication number: KR101772978B1
Application number: KR1020150130247A
Authority: KR
Inventors: 이현석
Original assignee: 이현석
Priority date: 2015-09-15
Filing date: 2015-09-15
Publication date: 2017-08-31
Also published as: KR20170032647A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel mounting apparatus for agricultural vehicles.
The present invention relates to an agricultural transportation vehicle having a driving wheel that receives a driving force and a driven wheel that is not driven by a driving force and can select the driven wheel to be one of a wheel and two wheels, And a coupling shaft inserted into the shaft hole and the through hole to couple the frame to the bracket, wherein the frame includes a through hole corresponding to the soccer yoke, A wheel detachment unit for two wheels provided at both ends of a frame body of the frame, and a wheel detachment unit for a wheel installed at the center of the frame body.

Description

[0001] WHEEL MOUNTING APPARATUS OF AGRICULTURE VEHICLE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a device for mounting a driven wheel in an agricultural transportation vehicle, and more particularly, to a wheel mounting device for an agricultural transportation vehicle that can selectively change a driven wheel to be a wheel or two wheels.

Generally, farmhouses use transportation vehicles for transportation of crops, compost, pesticide containers. Normally, these vehicles are easy to transport heavy goods on unpaved roads and farming activities such as in fields or orchards, so they can produce large torque and are manufactured to be suitable for low-speed operation.

In this agricultural transportation vehicle, the front wheel of the vehicle body is constituted by a driving wheel for generating a driving force, and the rear wheel is constituted by a driven wheel which is not transmitted with a separate driving force but merely rolls in accordance with the progress of the front wheel. There are different types of wheels that can be detached.

This kind of structure has a structure in which the rear wheels are arranged in a pair of left and right sides of the vehicle body so that the rear wheels can be easily installed and removed in a four-wheel type or a three-wheel type in the middle.

In this case, if the load is heavier, a four-wheeled vehicle is used for safety, and when the load is small and light, the three-wheeled vehicle is generally used. In particular, the three-wheel type is less stable than the four-wheel type. However, since the turning radius is smaller than that of the four-wheel type and the bottom unevenness is severe, It is convenient to use in many places.

As described above, the following conventional technology is disclosed for an agricultural transportation vehicle in which a wheel is detached and replaced by a three-wheel or four-wheel type.

The present invention disclosed in Korean Utility Model Registration No. 20-0182051 relates to an agricultural cart which can be selectively changed to a wheel, two-wheel, three-wheel or four-wheel type, in which an auxiliary wheel is detached and mounted on a transverse bar fixedly coupled to a rear undercarriage And has a rectangular tube-like structure that can be used.

However, when two rear wheels are attached to the transverse bar separately from the left and right in the above-mentioned registration utility model, the transverse bar is completely fixed to the rear undercarriage and can not move so that when one rear wheel passes over the irregularity like a ridge, So that there is a disadvantage that the grounding force becomes insufficient.

The above-mentioned prior art is applied to a hand-operated hand cart, but a similar configuration of a rear wheel detachment structure is also put to practical use in an electric vehicle.

For example, the Korean Registered Utility Model No. 20-0165219 discloses an electromechanical structure for a pair of rear wheels that can be detachably coupled to various parts of the undercarriage frame to adjust the distance between the rear wheels. This has the same problems as the Korean Registered Utility Model No. 20-0182051.

Korean Registered Utility Model No. 20-0182051 (Registered on March 23, 2000.) Korean Registered Utility Model No. 20-0165219 (Registered on October 14, 1999)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide an agricultural transportation vehicle in which a rear driven wheel can be transformed into a wheel or two- So that both ends of the wheel can be swung up and down.

The present invention also provides a wheel-mounting apparatus in which a driven wheel is constituted by a wheel, and the running of the driven wheel is not obstructed even when both ends of the frame swing up and down, It is another object to provide a wheel mounting apparatus.

In order to attain the above object, the present invention provides an agricultural transportation vehicle having a driving wheel rotated by a driving force and a driven wheel not receiving a driving force, wherein the driven wheel can be selected to be one of a wheel and two wheels, A bracket coupled to a lower portion of the vehicle frame and having a through hole corresponding to the yoke yoke; a frame inserted into the shaft yoke and the through hole, A wheel detachment unit for two wheels, which is provided at both ends of a frame body of the frame, and a wheel detachment unit for a wheel included in the bracket.

Meanwhile, in the wheel mounting apparatus, a wheel mounting apparatus may be constituted such that a wheel detachment unit for a wheel is included in the central portion of the frame body instead of the wheel detachment unit for a wheel mounted on the bracket.

In addition to this, it is possible to further comprise an raveling region provided so that the height-adjustable end portion is positioned between the frame body and a frame facing the frame body.

According to the present invention, both rear ends of the frame to which the driven wheels are attached can be pivoted up and down, while the rear driven wheels are modified into a wheel or two-wheel type according to the state of the running floor, It is possible to obtain a good grounding force of the rear wheels.

The present invention relates to an agricultural transportation vehicle in which a driven wheel is constituted by a wheel, and when a driven wheel, which is a wheel, is attached to the lower end of the center of the frame, when the both ends of the frame swing up and down, This can be prevented through the eastern district means. In addition, the present invention also has the effect of preventing the running disturbance of the driven wheels due to the up-and-down motion of both ends of the frame from the beginning by using means for attaching the subordinate wheels to the lower end of the bracket.

1 is a perspective view explaining a main configuration of a wheel mounting apparatus for an agricultural vehicle according to a first embodiment of the present invention.
Fig. 2 is a view showing a state in which two wheels are attached to a wheel mounting apparatus for an agricultural truck according to Embodiment 1. Fig.
Fig. 3 is a view showing a state in which a wheel is attached to a wheel mounting device of the agricultural vehicle according to the first embodiment.
4 is a perspective view explaining a main configuration of a wheel mounting apparatus for an agricultural vehicle according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a wheel mounting apparatus for an agricultural vehicle according to the present invention will be described in detail with reference to the drawings. However, the thicknesses of the lines, the sizes of the components, and the like shown in the drawings may be exaggerated or reduced for convenience in order to more clearly understand the structure of the present invention. In addition, the same reference numerals are given to the same components in the drawings even if they are shown in different drawings.

The terms used for describing the present invention are terms defined in consideration of the functions of the present invention. However, since these terms can be expressed in other terms depending on the intention or custom of the designer or the user, the definition of these terms used in the present invention should be made in consideration of the contents described throughout the specification.

Directional terms such as "top", "bottom", "front", "back", "left", "right", "forward", "rear", etc., as used in the description of the present invention, Orientation. Also, since the elements of the embodiments of the present invention can be positioned in various orientations, directional terms are used for illustrative purposes and not limitation. In the following description, well-known functions or constructions are not described in detail since they would unnecessarily obscure the gist of the invention.

[Example 1]

The wheel mounting apparatus for an agricultural truck according to the first embodiment of the present invention has a bracket 10 and a frame 20 as shown in Fig.

The bracket 10 of the first embodiment shown in Fig. 1 is a medium for connecting the frame 20 and the undercarriage 60 to each other.

The bracket 10 is bent or welded to form a " C "shape, and is coupled with the undercarriage 60 in such a manner that the opening is directed downward. The frame 20 is inserted into the opening of the bracket 10 .

A through hole 11 is formed in the front and rear surfaces of the bracket 10 forming the opening through which the coupling shaft 18 is inserted. That is, when the frame 20 is inserted into the opening of the bracket 10, the engaging shaft 18 is inserted so as to penetrate the shaft hole 22 of the frame and the through hole 11 of the bracket simultaneously. Accordingly, the frame 20 and the bracket 10 are coupled to each other.

On the other hand, as shown in FIG. 1, when the coupling shaft 18 is formed of a shaft bolt, tighten the coupling shaft 18 with a nut 19 at the rear end. The upper surface of the bracket 10 is coupled to the lower portion of the chassis 60, and the coupling method can be freely utilized such as welding or bolting.

The frame 20 of the first embodiment includes a frame body 21 and a shaft hole 22 provided at a central portion of the frame body; a wheel detachment portion 24 for two wheels provided at both ends of the frame body 21; And a wheel detachment part (26) for a wheel installed at the center of the frame body (21).

The frame body 21 is manufactured in the form of an elongated square pipe. At this time, the lower surface of the square pipe is preferably formed in an open form as shown in a circular enlarged view of FIG.

The shaft hole 22 is a hole which is inserted into the opening of the bracket 10 and inserted into the through hole 11 and then inserted into the coupling shaft 18 as described above.

The shaft hole 22 is provided with a bearing 23 so that the frame body 21 can swing up and down like a seesaw around the inserted shaft 18. When the bearing 23 is not used, the shaft hole 22 is formed to have a diameter slightly larger than the diameter of the coupling shaft 18 to form a gap, and grease or the like is injected into the gap to smoothly move It can be configured to occur.

The wheel detachable part 24 for the two wheels is made of a rectangular steel piece, and is attached to both lower ends of the frame body 21 by welding or the like.

As shown in FIG. 1, a plurality of bolt holes 25 are formed in the wheel detachment portion 24 for two wheels. This bolt hole 25 is used for bolt fastening after aligning it with a bolt hole 32 formed in a plate 31 of a driven wheel 30 to be described later. Therefore, the plurality of bolt holes 25 are manufactured according to the number, position, size, etc. of the bolt holes 32 of the plate 31.

The wheel detachment part 26 for the outer wheel of the bracket 10 has the same structure as that of the wheel detachment part 24 for the two wheels and only has a difference that it is attached to the lower end of the center part of the frame body 21.

Fig. 1 shows a yaw diverging zone 15 provided on a frame body 21 between a shaft hole 22 and wheel attachment / detachment sections 24 at both ends.

As shown in the circular enlarged view of Fig. 1, the yaw diverging zone 15 of the first embodiment is constituted by a bolt and a nut 16 fastened through the upper surface of the frame body 21.

3, the yaw diverging portion 15 rotates the nut 16 so that the end portion 17 rises to the upper portion and comes into contact with the undercarriage 60. When the frame body 21 rotates about the center of the engaging shaft 18 To prevent it from moving up and down. Therefore, the installation position of the urodynamic zone 15 is determined so as not to deviate from the width of the undercarriage 60.

The yaw diverging portion 15 may be composed of a bolt and a nut 16 which are inserted through a frame 60 facing the frame body from above the frame body 21 to prevent the swinging motion. Therefore, in this case, the nut 16 is rotated to lower the end portion 17 to reach the frame body 21, thereby preventing the frame body from swinging.

The yaw diverging zone 15 of the first embodiment is composed of a bolt and a nut. But the present invention is not limited thereto and any structure may be used so long as the height of the end portion 17 between the frame body 21 and the frame body facing the frame body can be adjusted.

The driven wheel 30 of the embodiment 1 uses a caster which can rotate the wheels 360 degrees to the left and right.

The driven wheel 30 is constituted by a plate 31 and wheels 33b and 33c located therebelow. A thrust bearing (not shown) is installed under the plate 31 so that the wheel can be rotated 360 degrees to the left and right smoothly.

A plurality of bolt holes 25 are formed in the plate 31 and a plurality of bolt holes 25 formed in the wheel detachment portion 24 for two wheels are aligned to come straight on and then the bolts 35 and the nuts 36 ). So that the driven wheel 30 is engaged with the frame 20.

The undercarriage (60) is a frame of the car which places the load on the upper part. A drive wheel 61 and a drive motor 62 are installed under the undercarriage 60. A coupling protrusion 63 is formed in a vertical frame formed at the rear of the undercarriage 60 and is fitted in a coupling hole (not shown) formed in the handle pipe of the manipulation part 70. Thus, the operating portion 70 is coupled to the undercarriage 60.

The operation unit 70 includes the devices necessary for operating the agricultural carrier of the present invention. The operation section 70 is largely constituted by a handle 71 and a control panel 72.

The operator grips the handle 71 to adjust the traveling direction, and the control panel 72 stores various control devices required for the operation.

Embodiment 1 The operation of the invention will be described with reference to FIG. 2 and FIG.

Fig. 2 shows a state in which two wheels are mounted on the wheel mounting apparatus of the first embodiment.

In this state, when the agricultural transportation vehicle is driven to a place such as a field with irregularities, the frame body 21 rocks like a seesaw around the coupling shaft 18. That is, if the right wheel 33c crosses the unevenness like the lattice, the right side of the frame body will rise to the upper side and the left side of the frame body will descend to the lower side so that the left wheel 33b does not float in the air, It is possible to keep touching the ground. Because of this action, the wheel mounting device of Example 1 is able to maintain a uniform grounding force even when two wheels are mounted and run on uneven surfaces.

2, the end portion 17 is brought into contact with the chassis 60 by rotating the nut 16 to adjust the end portion 17 so as to descend downward, So as not to interfere with the seizing action of the seat back 21.

Fig. 3 shows a state in which a wheel is mounted on the wheel 33a in the wheel-mounting apparatus of the first embodiment.

In this state, it is important that the wheel removal portion 26 for the wheel is fixed and does not move.

However, even if only a single wheel is mounted, if the agricultural truck is driven to a place such as a field with unevenness, the frame body 21 swings like a seesaw around the joining shaft 18 due to vibration of the vehicle body. As a result, the wheel detachment portion 26 for the wheel is also shaken. In this case, the attached center wheel 33a is difficult to stably travel.

Therefore, at this time, the nut 16 is rotated in the yaw diverging area 15 as shown in Fig. 3 so that the end portion 17 rises to the upper portion and is brought into contact with the undercarriage 60. In this way, the frame body 21 does not cause a seesaw effect, so that the traveling of the wheels can be stably performed.

[Practical example 2]

The wheel mounting apparatus for the agricultural vehicle according to the second embodiment of the present invention is as shown in Fig.

Since the configuration of the second embodiment generally has the same configuration as that of the first embodiment, only the configuration different from the first embodiment will be described below.

The bracket 10 of the second embodiment shown in Fig. 4 is fabricated by bending or welding a piece of steel. The " C "-shaped iron piece is folded outward at both ends of the opening to form a predetermined length Thereby forming a wheel-side detachable portion 12 for a wheel. Therefore, the bracket of Example 2 is formed in the same shape as the cross section of the half-folded hat as viewed from the side.

A plurality of bolt holes 13 are formed in the wheel detachment portion 12 for the outer wheel of the bracket 10. The bolt hole 13 is a hole for bolt fastening to the bolt hole 32 formed in the plate 31 of the driven wheel 30 to be described later. Accordingly, the plurality of bolt holes 13 are manufactured according to the number, position, size, etc. of the bolt holes 32 of the plate 31.

The frame 20 of the second embodiment shown in Fig. 4 has only a wheel detachable portion 24 for two wheels installed at the left and right ends of the frame body 21 without a detachable portion for the wheels at the center of the frame body .

On the other hand, the yaw diverging region 15 is shown in Fig. 4, but this yaw diverging region 15 is not an essential component in the second embodiment. Therefore, it may be omitted.

The remaining configuration of the second embodiment is the same as that of the first embodiment.

Example 2 The operation in the case of mounting two wheels in the invention is the same as that in Example 1.

In the case of the second embodiment, however, since the wheel detachable portion 12 for the wheel is integrally formed with the bracket 10, the frame body 21 can be influenced by the center wheel 33a Do not give.

However, in the case of the embodiment 2, when the agricultural vehicle is driven to a place such as a field with irregularities in which the wheels are mounted, the frame body 21 is moved around the coupling shaft 18 as a seesaw It may collide with the undercarriage 60 while rocking, thereby generating noise or fatigue due to repetitive impact.

Therefore, also in this case, the nut 16 of the yaw diverging zone 15 is rotated to adjust the end portion 17 so as to touch the chassis 60, thereby preventing the frame body 21 from swinging or removing the frame 20 itself It is desirable to prevent problems such as generation of noise and fatigue caused by impact.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

10: Bracket
11: Kantou hole 12, 26: Wheel detachment part for the outer wheel
13, 25, 32: Bolt hole
15: Yodo District
16, 19, 36: nut 17: end
18: Combined axis
20: frame
21: frame body 22: soccer yoke
23: Bearing 24: Wheel for two wheels
30: Paddle wheel
31: plate 33a: center wheel
33b: left wheel 33c: right wheel
35: Bolt
60: chassis 61: drive wheels
62: drive motor 63: engaging projection
70: Operation part 71: Handle
72: control panel

Claims

delete

And a driven wheel which is rotated by receiving a driving force and a driven wheel which is not subjected to a driving force, wherein the driven wheel can be selected to be one of a wheel and two wheels,
A frame 20 having a shaft hole 22 at the center of the frame body 21,
A bracket 10 coupled to a lower portion of the undercarriage 60 and having a through hole 11 corresponding to the shaft hole 22,
And a coupling shaft (18) inserted into the through hole (11) to mount the frame (20) to the bracket (10)
A wheel detachment portion 24 for two wheels provided at both ends of the frame body 21 of the frame 20,
A wheel detachment portion 26 for a wheel disposed at the center of the frame body 21,
Further comprising a yaw diverging zone (15) installed between the frame body (21) and a frame (60) facing the frame body,
The yaw diverging zone 15 is composed of a bolt and a nut 16 penetrating through the upper surface of the frame body 21,
When the end portion 17 of the bolt is raised to reach the chassis 60, the frame body 21 is prevented from pivoting up and down about the coupling shaft 18,
When the end portion 17 of the bolt is lowered to be separated from the chassis 60, the frame body 21 can be pivoted up and down about the coupling shaft 18. Mounting device.

And a driven wheel which is rotated by receiving a driving force and a driven wheel which is not subjected to a driving force, wherein the driven wheel can be selected to be one of a wheel and two wheels,
A frame 20 having a shaft hole 22 at the center of the frame body 21,
A bracket 10 coupled to a lower portion of the undercarriage 60 and having a through hole 11 corresponding to the shaft hole 22,
And a coupling shaft (18) inserted into the through hole (11) to mount the frame (20) to the bracket (10)
A wheel detachment portion 24 for two wheels provided at both ends of the frame body 21 of the frame 20,
A wheel detachment portion 26 for a wheel disposed at the center of the frame body 21,
Further comprising a yaw diverging zone (15) installed between the frame body (21) and a frame (60) facing the frame body,
The yaw diverging zone 15 is composed of a bolt and a nut 16 which are fastened through a chassis 60 facing the frame body,
When the end portion 17 of the bolt is lowered to come in contact with the frame body 21, the frame body 21 is prevented from swinging up and down about the engaging shaft 18,
When the end portion 17 of the bolt is lifted up to be detached from the frame body 21, the frame body 21 can be pivoted up and down about the engaging shaft 18. Mounting device.