KR20240086434A - Agricultural electric carrier - Google Patents

Abstract

The present invention relates to an electric transport vehicle for agricultural use, and more specifically, to load and transport work materials such as compost or harvested products while traveling along various agricultural fields such as vineyards or pepper fields, especially in the topographical conditions of the road surface that require movement. This relates to an electric agricultural transport vehicle that secures stable driving stability while suppressing interference with surrounding objects by actively adjusting the height of the body part where the loading space is formed.

Description

Agricultural electric carrier

The present invention relates to an electric transport vehicle for agricultural use, and more specifically, to load and transport work materials such as compost or harvested products while traveling along various agricultural fields such as vineyards or pepper fields, especially in the topographical conditions of the road surface that require movement. This relates to an electric agricultural transport vehicle that secures stable driving stability while suppressing interference with surrounding objects by actively adjusting the height of the body part where the loading space is formed.

In addition to research to develop new agricultural products and increase productivity, it is necessary to develop and utilize agricultural machinery suitable for the production environment of each agricultural product in order to increase the efficiency of cultivation and harvesting of agricultural products in agricultural fields and secure agricultural competitiveness.

Due to the recent aging of the agricultural population, existing farmers are retiring and a generational change in agricultural personnel is taking place in the future, and the number of young farmers is continuously increasing along with the increase in the population returning to farming nationwide.

In the process of generational change among farmers, farmers scheduled to retire should pass on their experience and know-how to younger farmers, while the ideas of new farmers should be combined with existing agricultural technology to continue the development of agricultural technology.

Meanwhile, crops require a lot of labor not only during the sowing and cultivation process, but also during the harvesting period, and only when harvesting is done efficiently while reducing labor can the agricultural products be sold at the appropriate time.

In particular, field crops such as grapes, peppers, broccoli, kohlrabi, cabbage, etc. must be distributed in a fresh state, so safe and rapid transportation of agricultural products from the harvest site is essential.

In general, when transporting harvested field crops, most of the harvested agricultural products are transported in container boxes or moved directly on non-powered transport vehicles such as rear trucks.

Meanwhile, in some agricultural fields, harvested agricultural products are transported using powered transport vehicles, but there are various disadvantages such as the low height of the transport vehicles, making it difficult to use them directly at the harvest site, and damage to the transport vehicles due to crops getting caught in the wheels.

Conventionally, agricultural transport vehicles have been developed for transporting crops, compost, pesticide containers, etc., and are equipped with two- or four-wheeled mobile units or caterpillar-type mobile units, and the mobile units are driven manually by manpower or electric motors using electric motors. Methods, engine methods using fuel such as gasoline, etc. are being used.

Representatively, in Republic of Korea Patent Publication No. 10-2017-0032647, an agricultural transport vehicle capable of exerting large torque and suitable for low-speed operation was proposed to facilitate the transportation of heavy objects on unpaved roads and farming activities in places such as fields and orchards, and the body of the vehicle was proposed. The front wheel of the vehicle is composed of a driving wheel that generates driving force, and the rear wheel is composed of a driven wheel that simply rolls according to the progress of the front wheel without transmitting a separate driving force. This driven wheel is made to be detachable. A detachable structure for the rear wheels is proposed so that a pair of rear wheels can be placed on the left and right of the car body to drive in a four-wheeled form, or by placing only one in the center to drive in a three-wheeled form.

In addition, in Korea Registered Patent No. 10-1334304, a four-wheel drive transport vehicle was proposed that generates power using a rechargeable battery to move forward and can be used for tasks such as growing crops, transporting fertilizer and feed, and harvesting. , a tilting device is provided to prevent damage to the cargo while easily passing obstacles such as snags or grooves when the transport vehicle moves, and a cylinder rod is provided to enable lifting and dumping operations of the cargo box.

Such conventional agricultural transport vehicles have the disadvantage of being prone to damage to crops when put directly into a field during harvest time due to the drive shaft connecting a pair of vehicle wheels. In particular, because there is a limit to the size of the rotating wheel, it is difficult to move when the ground surface of the field where the harvest is located is uneven, and as a result, rapid transportation of crops is impossible.

Therefore, there is a need for an improved agricultural transport vehicle that can directly load and immediately transport crops harvested by putting them directly into greenhouses as well as open fields. In addition, there is a need for a transport vehicle that is simple in structure and easy to manufacture, suitable for distribution to farms, and is environmentally harmless even when used in crop harvesting areas.

KR 10-2017-0072267 KR 10-1836302 KR 10-2019-0120449

The purpose of the present invention, which was devised to solve the above problems, is to load and transport works such as compost or harvested products while driving along various farmlands such as vineyards or pepper fields, especially the topographical conditions of the road surface that require movement. Accordingly, the aim is to provide an electric agricultural transport vehicle that secures stable driving stability while suppressing interference with surrounding objects by actively adjusting the height of the loading stand.

The above object is achieved by the following configuration provided by the present invention.

The electric agricultural transport vehicle according to the present invention,

a car body with a loading space; a pair of drive supports formed symmetrically on both sides of the vehicle body to roll and support the vehicle body at a distance from the road surface and provide driving force; And a control unit that controls the driving of each of the driving supports,

Each of the drive supports includes a front wheel support having an assembly end mounted on the upper part at a point of the vehicle body and a support end formed on the lower part; a front wheel drive shaft formed at the assembly end of the front wheel support; a front wheel axle formed on a support end of the front wheel support; A drive connection member connecting the front wheel drive shaft and the front wheel shaft; and a front wheel support body configured to include a front wheel mounted on the front wheel axle and supported by rolling on the road surface.

a rear wheel support having an assembly end mounted on the upper part to be mounted at this point of the vehicle body and a support end formed at the lower part; a rear wheel drive shaft formed at the assembly end of the rear wheel support; a rear wheel axle formed on a support end of the rear wheel support; A drive connection member connecting the rear wheel drive shaft and the rear wheel shaft; and a rear wheel support body including a rear wheel mounted on the rear wheel axle and rolled and supported on the road surface. and

It is characterized by comprising a drive motor that provides rotational force through a rotation shaft to at least one of the front wheel drive shaft of the front wheel support and the rear wheel drive shaft of the rear wheel support to promote rolling transfer of the front and rear wheels formed on the front and rear wheel supports. Do it as

Preferably, the assembly end of the front wheel support and the assembly end of the rear wheel support are arranged in a vertically rotating structure on the vehicle body, and there is a gap between the assembly end of the front wheel support and the assembly end of the rear wheel support installed in an upward and downward rotational structure on the vehicle body. A standing angle adjusting part is formed that rotates the front wheel support and the rear wheel support up and down around the assembly end to adjust the standing angle of the front wheel support and the rear wheel support by interlocking with each other,

The standing angle adjusting unit includes a driven member disposed in a concentric structure at the assembly end of the front wheel support; a driven member disposed in a concentric structure at the assembly end of the rear wheel support; It is composed of a driving member that provides forward and reverse rotational force in conjunction with these driven gears,

Due to the normal and reverse rotation of the drive member, the driven members rotate inward or outward at the same time, so that the standing angles of the front wheel support and the rear wheel support are simultaneously switched.

More preferably, a movable clutch unit that sets a selective connection state of the drive member and the drive motor is disposed between the drive member of the standing angle adjustment unit and the rotation axis of the drive motor that provides rotational force to the front wheel drive shaft and the rear wheel drive shaft. Became,

The standing angle adjuster is temporarily connected to the drive motor through a movable clutch unit and is configured to receive forward and reverse rotation force according to the change in standing angle of the front wheel support and the rear wheel support.

In addition, the standing angle adjusting unit further includes a stopping block that engages with at least one of the driving member and the driven member constituting the standing angle adjusting unit and physically restrains the rotation of the driving member and the driven member.

As described above, in the present invention, an agricultural electric transport vehicle that secures stable driving stability while suppressing interference with surrounding objects by actively adjusting the height of the body part according to the topographical conditions of the road surface while moving along a vineyard or pepper field, etc. is providing.

In particular, the present invention provides driving power according to the rolling of the front and rear wheels through the operation of a single drive motor, and also proposes a standing angle adjustment unit that swings the front and rear wheel supports up and down, thereby achieving simplification and weight reduction of the structure while maintaining mobility. It has the specificity of being able to actively control the height and inclination of the vehicle body depending on conditions.

Figure 1 shows the overall configuration of an agricultural electric transport vehicle proposed as a preferred embodiment of the present invention,
Figure 2 shows the detailed configuration of the driving support portion in the agricultural electric transport vehicle proposed as a preferred embodiment of the present invention;
Figure 3 shows the movement state of the car body through the drive support in the agricultural electric transport vehicle proposed as a preferred embodiment of the present invention,
Figure 4 shows the height and inclination angle adjustment structure and operating state of the vehicle body through the drive support in the electric agricultural transport vehicle proposed as a preferred embodiment of the present invention.

Hereinafter, an agricultural electric transport vehicle proposed as a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 1 shows the overall configuration of an agricultural electric transport vehicle proposed as a preferred embodiment of the present invention, and Figure 2 shows the detailed configuration of the driving support portion in the agricultural electric transport vehicle proposed as a preferred embodiment of the present invention. Figure 3 shows the movement state of the car body through the drive support in the agricultural electric transport vehicle proposed as a preferred embodiment of the present invention, and Figure 4 shows the agricultural electric transport proposed as a preferred embodiment of the present invention. In a transport vehicle, it shows the height and inclination angle adjustment structure and operating state of the vehicle body through the drive support.

The agricultural electric transport vehicle 1 proposed as a preferred embodiment of the present invention is a transport device that loads and transports various works or harvests such as compost and fertilizer while traveling along various agricultural fields such as vineyards and pepper fields.

The agricultural electric transport vehicle 1 includes a body part 10 in which a loading space 11 is formed, as shown in FIG. 1; A pair of drive supports 20 disposed on both left and right sides of the vehicle body 10 to roll and support the vehicle body 10 at a distance from the road surface and provide driving force; and a control unit that controls the driving of each drive support unit 20.

Accordingly, the control unit independently controls the drive supports 20 disposed on both left and right sides of the vehicle body 10, so that the vehicle body 10 in which the loading space 11 is formed travels in the required direction and path. .

Preferably, the control unit is equipped with an autonomous driving module that recognizes the shape, height, slope, etc. of the surrounding terrain through sensors or cameras and independently controls the driving support unit 20, and the control unit operates the autonomous driving module. The driving path is set autonomously by taking into account the terrain detected through the vehicle.

Meanwhile, the drive supports 20 disposed on both left and right sides of the vehicle body 10 provide driving force to the front wheel support 110 and the rear wheel support 120 and the front wheel support 110 and the rear wheel support 120. It includes a driving motor 130 that does.

The front wheel support 110 includes a front wheel support 111 having an assembly end 111a mounted at a point of the vehicle body 10 at the top and a support end 111b at the bottom; a front wheel drive shaft 112 formed at the assembly end 111a of the front wheel support 111; a front wheel axle 112 formed on the support end 111b of the front wheel support 111; A drive connection member 114 connecting the front wheel drive shaft 112 and the front wheel shaft 113; and a front wheel 115 mounted on the front wheel axle 113 and supported on the road surface.

In addition, the rear wheel support 120 includes a rear wheel support 121 having an assembly end 121a installed at the top and a support end 121b mounted at the bottom of the vehicle body 10; a rear wheel drive shaft 122 formed at the assembly end 121a of the rear wheel support 121; a rear wheel axle 122 formed on the support end 121b of the rear wheel support 121; A drive connection member 124 connecting the rear wheel drive shaft 122 and the rear wheel shaft 123; and a rear wheel 125 mounted on the rear wheel axle 123 and supported on the road surface.

In addition, it is mounted on the vehicle body 10 and provides rotational force to the front wheel drive shaft 112 of the front wheel support 110 and the rear wheel drive shaft 122 of the rear wheel support 120 through the rotation shaft 131, so that the front wheel support 110 ) and a drive motor 130 that promotes rolling transport of the front wheel 115 and the rear wheel 125 formed on the rear wheel support 120.

Preferably, a chain sprocket is provided between the front wheel drive shaft 112 and the front wheel axle 113 provided on the front wheel support 111, and between the rear wheel drive shaft 122 and the rear wheel axle 123 provided on the rear wheel support 121. The driving connection members 114 and 124 of the structure are formed.

And, between the rotation axis 131 of the drive motor 130 and the front wheel drive shaft 112 of the front wheel support 110, and between the rotation axis 131 of the drive motor 130 and the rear wheel drive shaft 122 of the rear wheel support 120. ) Between them, a power distribution member 132 consisting of a gear 132a and a chain sprocket 132b is formed to interconnect them, and the rotational force output through the rotation shaft 131 of the drive motor 130 is formed. is distributed and provided to the front wheel drive shaft 111 of the front wheel support body 110 and the rear wheel drive shaft 121 of the rear wheel support body 120 by the power distribution member 132.

Therefore, as shown in Figures 1 to 3, the drive support parts 20 disposed on both sides of the car body 10 include the front wheel 115 and the front wheel 115, which are supported on the road by the rotational force output from the drive motor 30. The rear wheels 125 rotate simultaneously to drive the vehicle body 10, and the control unit independently operates each drive motor 130 constituting the drive support units 20 disposed on both sides of the vehicle body 10. Control and drive along the required driving path.

In the present invention, a standing angle setting structure is provided to set the standing angles of the front wheel support 111 and the rear wheel support 121 constituting the drive support 20 disposed on both sides of the vehicle body 10, respectively, and the control unit is provided. Actively adjusts the height and inclination of the vehicle body 10 in consideration of the height of the road surface, curved terrain, and the height of obstacles such as crops located on the road surface in the process of driving along the required path through independent control through This ensures stable driving without damage to crops.

In particular, in the present invention, as shown in FIGS. 2 to 4, the standing angles of the front wheel support 111 and the rear wheel support 121 are set through the driving force of the drive motor 130 constituting the drive support 20. By configuring it as possible, the structure is simplified and lightweight.

For this purpose, in this embodiment, the assembly end 111a of the front wheel support 111 and the assembly end 121a of the rear wheel support 121 are arranged in a vertically rotating structure on the vehicle body 10, A standing angle adjusting part 140 is formed between the assembly end 111a of the front wheel support 111 installed in a vertically rotating structure and the assembly end 121a of the rear wheel support 121 to allow them to be mutually interlocked.

The standing angle adjusting unit 140 includes a driven member 141 arranged concentrically at the assembly end 111a of the front wheel support 111; A driven member 142 arranged concentrically at the assembly end 121a of the rear wheel support 121; It includes a driving member 143 that communicates with these driven gears 141 and 142.

Accordingly, due to the normal and reverse rotation of the drive member 143, the driven members 141 and 142 simultaneously rotate inward or outward so that the standing angles of the front wheel support 111 and the rear wheel support 121 are simultaneously switched.

In particular, in the present invention, the standing angle adjusting unit 140 and the drive motor 130 that provides rotational force to the front wheel 115 and the rear wheel 125 are configured to be selectively connected, and the drive motor is normally used to drive the front wheel ( 115) and the rear wheel 125, and when adjusting the height or inclination of the body part 10, the rotational force is temporarily provided to the standing angle adjustment unit 140 to support the front wheel support 111 and the rear wheel support 121. Set the standing angle.

To describe this in detail, the standing angle adjusting unit 140 includes a movable clutch unit 150 selectively connected to the rotation shaft 131 of the driving motor 130; A stopping block 160 that engages with at least one of the driving member 143 and the driven members 141 and 142 constituting the standing angle adjusting unit 140 to physically restrict their rotation is formed. .

Preferably, the movable clutch unit 150 includes a drive motor side coupling 151 installed on the rotation shaft 131 of the drive motor 130; A standing angle adjusting unit side coupling 151 disposed on the driving member 143 of the standing angle adjusting unit 140; and a movable clutch member 153 that sets the connection state between the drive motor side coupling 151 and the standing angle adjustment unit side coupling 152.

More preferably, the movable clutch member 153 and the stopping block 160 of the movable clutch unit 150 are mounted on the advance and retreat rod 171 of the advance and retreat unit 170, so that the advance and retreat rod 171 moves forward and backward. As a result, the movable clutch member 153 and the stopping block 160 simultaneously advance and retreat inward and outward to establish a connection state between the drive motor 130 and the standing angle adjustment unit 140 and a standing position through the stopping block 160. The restraint states of the driven members 141 and 142 of each control unit 140 are set uniformly.

That is, as shown in FIG. 4, when the advance/retract rod 171 of the advance/retract unit 170 advances outward, the drive motor side coupling 151 and the standing angle adjuster side coupling 152 are connected by the movable clutch member 153. ) are connected to each other, and the restraint state of the driving member 143 and the driven members 141 and 142 by the stopping block 160 is temporarily released.

Then, when the advance/retract rod 171 of the advance/retract unit 170 advances inward, the drive motor side coupling 151 and the standing angle adjuster side coupling 152 are separated from each other by the movable clutch member 153, The driving member 143 and the driven members 141 and 142 are restrained by the stopping block 160, so that their vertical rotation is physically restricted.

Accordingly, the driving motor side coupling 151 and the standing angle adjustment unit side coupling 152 are connected to each other by the movable clutch member 153, and the driving member 143 and the driven member are connected by the stopping block 160. In a state in which the restraint state of (141, 142) is temporarily released, the control unit drives the drive motor 130 to move the front wheel support 111 and the rear wheel support 112 by the rotational force output from the drive motor 130. The standing angle is set by rotating up and down around the assembly end 111a where the driven members 141 and 142 are provided, and through this, the height and inclination of the car body 10 supported by each support 111 and 112 are determined. It is set.

Thereafter, as shown in FIG. 3, when the advance and retreat rod 171 of the advance and retreat unit 170 enters the inside, the drive motor side coupling 151 and the standing angle adjuster side coupling 152 are connected by the movable clutch member 153. ) are separated from each other, and the rotation of the driving member 143 and the driven members 141 and 142 by the stopping block 160 is restricted, so that the vehicle body portion 10 supported on the supports 111 and 121 Height and slope are fixed.

Therefore, each drive support unit 20 disposed on both left and right sides of the vehicle body 10 and independently driven under the control of the control unit operates separately according to the standing angle setting of the front wheel support 111 and the rear wheel support 112. Since it is configured to adjust the inclination angle of the front wheel support 111 and the rear wheel support 112 through the drive motor 130 that provides rotational force according to the rolling of the front wheel 115 and the rear wheel 125 without mounting a means, the structure Simplification and lightweighting are achieved.

In addition, the control unit independently controls the drive supports 20 disposed on both left and right sides of the car body 100 according to the height or slope of the road surface requiring driving and the presence of obstacles, and configures each drive support part 20. Stable driving is possible by adjusting the standing angles of the front wheel support 111 and the rear wheel support 121.

1. Agricultural electric transporter
10. Body 11. Loading space
12. Battery storage space
20. Drive support
110. Front wheel support 111. Front wheel support
111a. Assembly Unit 111b. support group
112. Front wheel drive shaft 113. Front wheel shaft
114. Drive connection member 115. Front wheel
120. Rear wheel support 121. Rear wheel support
122. Rear wheel drive shaft 123. Rear wheel shaft
124. Drive connection member 125. Rear wheel
130. Drive motor 131. Rotation shaft
132. Power distribution member 132a. gear
132b. chain sprocket
140. Standing angle adjuster 141. Driven member
142. Driven member 143. Driving member
150. Movable clutch unit 151. Drive motor side coupling
152. Standing angle adjuster side coupling 153. Movable clutch member
160. Stopping block
170. Advance and retreat unit 171. Advance and retreat road

Claims (4)

a car body with a loading space; a pair of drive supports that are symmetrically formed on both sides of the vehicle body, support the vehicle body to be spaced apart from the road surface, and provide driving force; And a control unit that controls the driving of each of the driving supports,
Each of the drive supports includes a front wheel support having an assembly end mounted on the upper part at a point of the vehicle body and a support end formed on the lower part; a front wheel drive shaft formed at the assembly end of the front wheel support; a front wheel axle formed on a support end of the front wheel support; A drive connection member connecting the front wheel drive shaft and the front wheel shaft; and a front wheel support body configured to include a front wheel mounted on the front wheel axle and supported by rolling on the road surface.
a rear wheel support having an assembly end mounted on the upper part to be mounted at this point of the vehicle body and a support end formed at the lower part; a rear wheel drive shaft formed at the assembly end of the rear wheel support; a rear wheel axle formed on a support end of the rear wheel support; A drive connection member connecting the rear wheel drive shaft and the rear wheel shaft; and a rear wheel support body including a rear wheel mounted on the rear wheel axle and supported on the road surface. and
It is characterized by comprising a drive motor that provides rotational force through a rotation shaft to at least one of the front wheel drive shaft of the front wheel support and the rear wheel drive shaft of the rear wheel support to promote rolling transfer of the front and rear wheels formed on the front and rear wheel supports. Agricultural electric transport vehicle. The method of claim 1, wherein the assembly end of the front wheel support and the assembly end of the rear wheel support are disposed in a vertically rotating structure on the vehicle body, and between the assembly end of the front wheel support and the assembly end of the rear wheel support installed in an upward and downward rotational structure on the vehicle body are A standing angle adjustment part is formed that rotates the front wheel support and the rear wheel support up and down around the assembly end to adjust the standing angle of the front wheel support and the rear wheel support by interlocking between them,
The standing angle adjusting unit includes a driven member disposed in a concentric structure at the assembly end of the front wheel support; a driven member disposed in a concentric structure at the assembly end of the rear wheel support; It is composed of a driving member that provides forward and reverse rotational force in conjunction with these driven gears,
An agricultural electric transport vehicle, characterized in that the driven members rotate inward or outward at the same time due to forward and reverse rotation of the driving member, so that the standing angles of the front wheel support and the rear wheel support are simultaneously switched. The method of claim 3, wherein there is a movable clutch unit between the driving member of the standing angle adjustment unit and the rotation axis of the drive motor that provides rotational force to the front wheel drive shaft and the rear wheel drive shaft, and which sets a selective connection state of the drive member and the drive motor. placed,
The standing angle adjusting unit is temporarily connected to the drive motor through a movable clutch unit to receive forward and reverse rotational force according to the change in standing angle of the front wheel support and the rear wheel support. The method of claim 3, wherein the standing angle adjusting unit further includes a stopping block that engages with at least one of the driving member and the driven member constituting the standing angle adjusting unit to physically restrain the rotation of the driving member and the driven member. Agricultural electric transport vehicle.