KR20030008896A - Electric pipe rail trolley - Google Patents

Abstract

PURPOSE: A rail device in which an elevating plate is elevated by the utilization of a turning force of a screw, a separate guide rail is mounted on the front of the elevating plate and the height of the elevating plate is freely controlled in correspondence with the length of a screw shaft is provided to reduce noise while preventing an accident and to improve working efficiency. CONSTITUTION: An elevation operating part(4) which is lifted by the rotation of a vertical screw shaft by a vertical motor(41) and contains an elevating rod(42) with a roller(421) on both sides is mounted on the front of a frame(1), an elevating plate(5) connected to the frame through a link assembly(51) is mounted at the upper part of the frame and a double wire is mounted between both sides of the elevating plate and both sides of the frame to lift the elevating plate by being wound on the roller.

Description

Agricultural rail work machine {Electric pipe rail trolley}

The present invention relates to an agricultural rail working machine used when growing crops in a greenhouse or orchard, and more particularly, to an agricultural rail working machine which can prevent shaking during lifting of the lifting plate by lifting the lifting plate through the screw shaft and the guide rail. It is about.

In general, a rail work machine refers to a device for elevating an operator while moving on rails mounted in a plurality of rows on a greenhouse and an orchard floor. Therefore, the present invention is an improvement of the conventional rail work machine, first described in the conventional rail work machine as follows.

10 shows a conventional rail working machine, and a rail moving wheel 101 is mounted on the lower portion of the frame 100 so as to be moved forward and backward by riding the rail. Both moving wheels 102 are mounted to be movable to both sides, and the lifting plate 300 which is elevated by the hydraulic cylinder 200 is mounted on the upper side of the frame 100.

In particular, the link assembly 400 consisting of a plurality of links is mounted on the lower portion of the elevating plate 300 to maintain the elevating plate 300 in a horizontal state during the elevating process of the elevating plate 300.

Therefore, when operating the conventional rail work machine configured as described above, first, the rail moving wheel 101 mounted on the lower portion of the frame 100 is rotated through the drive unit to move the work machine to the desired position.

Next, by operating the hydraulic cylinder 200 mounted on the upper portion of the frame 100 to adjust the lifting plate 300 to a height corresponding to the height of the crop.

However, in using the above-described rail work machine, as the elevating plate is lifted through a single hydraulic cylinder, there is a problem that severe swing and noise are generated when the elevating plate is lifted.

In addition, due to the limitation of the rod length of the hydraulic cylinder, there was also a problem that can not sufficiently secure the lifting height.

In addition, by supplying and discharging the fluid to the hydraulic cylinder through the switching valve, there was a problem that the impact occurs at the moment of rising or falling due to the initial speed.

In addition, the capacity of the fluid cylinder should be made large enough to elevate the elevating plate, and as the consumption of the rechargeable battery mounted inside the frame was excessive, it was inconvenient to charge the rail work machine at any time.

In addition, when the hydraulic cylinder is ruptured because there is no separate stabilizer, there was also a problem that the operator falls due to the descending of the lifting plate.

In addition, when moving along the rail, when the center of gravity of the lifting plate is changed, there was also a problem such that the whole work machine is turned over.

Accordingly, the present invention has been invented to solve the above problems, by elevating the elevating plate by using the rotational force of the screw and by mounting a separate guide rail in front of the elevating plate, to prevent the shaking and noise during the elevating plate An object of the present invention is to provide a rail working agricultural machine.

In addition, by adjusting the height of the lifting plate freely to correspond to the length of the screw shaft, there is also an object to ensure a sufficient lifting height of the lifting plate.

In addition, there is also an object to prevent an impact from occurring at an initial instant of rising or falling of the lifting plate by gradually increasing the rotational speed of the motor for rotating the screw and then gradually increasing it.

In addition, by rotating the screw using a motor, there is also an object that can prevent the waste of power caused by the use of a conventional hydraulic cylinder.

In addition, by mounting a sensor for controlling the lifting height of the lifting platform to the lifting operation unit, there is also an object to prevent the lifting platform to rise above the limit, and to prevent falling below the limit.

In addition, the lower part of the frame is equipped with fall prevention means to hold the rail when the frame is inclined to prevent the work machine from falling.

The present invention for achieving the above object, the front and rear moving wheels are connected to the drive unit to be mounted to the lower portion of the frame to be moved forward and backward on the rail, and both sides of the work machine is mounted on the front and rear of the moving wheels In a general agricultural rail working machine includes both moving wheels connected to the driving unit to move to; In front of the frame, a vertical motor mounted vertically inside the frame, a vertical screw shaft which is connected to the rotation axis of the vertical motor and protrudes out of the frame; The elevating platform is equipped with a lifting platform consisting of a lifting platform and a vertical fixture for wrapping and holding the lifting platform; An elevating plate is mounted on the upper side of the frame and connected to the frame through a link assembly; A double wire is mounted between both front ends of the elevating plate and both front sides of the frame so that the elevating plate can be elevated by being wound on the roller.

1 is a perspective view showing a rail working machine of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is an enlarged view of a portion B of FIG. 2;

Figure 4 is a cross-sectional view showing a safety device of the lifting operation unit according to the present invention.

Figure 5 is a partially exploded perspective view showing the connection state and the handle portion of the guide rail according to the present invention.

Figure 6 is a perspective view of the front, rear wheels of the present invention.

7 is a cross-sectional view taken along the line B-B in FIG.

Figure 8 is a block diagram showing a fall prevention means of the present invention.

9 is a schematic diagram showing an operating state of the present invention.

10 is an overall schematic view showing a conventional rail work machine.

Explanation of symbols for main parts of the drawings

1: frame

11 drive unit

12: hanger

121: hinge

13: electromagnet

14: tension spring

15: horizontal mercury switch

2: forward and backward wheels

21: bracket

22: disc

23: protrusion

231: arc

3: Movement wheels on both sides

4 lift operation unit

41: vertical motor

411: axis of rotation, 412: power control unit

42: platform

421: roller, 422: cap nut, 423: magnet sensor

43: vertical screw shaft

44: vertical stand, 441: double detection sensor

5: lifting plate

51: link assembly

511: link, 512 hinge, 513 roller

6: wire

7: handle

71: Vertical expectation

72: horizontal bar

721: control panel

8: guide rail

81: fixed guide rail

82: elevating guide rail

9: bearing

10: rail

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a rail working machine of the present invention, Figure 2 is a cross-sectional view taken along the line A-A of Figure 1, first described the configuration as follows.

It is mounted on the lower part of the frame 1 so that the rail 10 can be moved forward and backward and is connected to the driving part 11, and the front and rear moving wheels 2 and the front and rear parts of the moving wheel 11 are mounted. In the conventional agricultural rail work machine includes two moving wheels (3) connected to the drive unit 11 so as to move the work machine to both sides, the front of the frame (1) to rotate the vertical motor 41 An elevating operation part 4 including an elevating platform 42 having a roller 421 on both upper and lower sides thereof is mounted, and an upper side of the frame 1 is connected to the frame 1 through a link assembly 51. A lifting plate 5 is connected and configured to bend an aluminum plate, and the lifting plate 5 is wound between the front end sides of the lifting plate 5 and the front both sides of the frame 1. The dual wire 6 is mounted so that it can be elevated.

This will be described in more detail as follows.

FIG. 3 is an enlarged view of a part B of FIG. 2, and FIG. 4 shows a safety device of the lifting operation unit according to the present invention, and the lifting operation unit 4 is mounted to the front of the frame 1, and the frame ( 1) a vertical motor 41 mounted vertically inside the vertical motor, a vertical screw shaft 43 connected to the rotary shaft 411 of the vertical motor 41 and protruding upward of the frame 1, and the vertical screw. The lifting table 42 is mounted while wrapping the outer diameter of the shaft 43 and is elevated according to the rotation of the vertical screw shaft 43, and the vertical stand is wrapped around the outside of the lifting table 42 and the bottom is fixed to the upper surface of the frame 1. It consists of a vertical stand 44.

In particular, the cap nut 422 is mounted on the lower end of the lifting table 42 of the lifting operation unit 4, and the vertical screw shaft 43 is fastened to the cap nut 422, thereby The platform 42 can be lifted through the rotation.

In addition, the vertical motor 41 is connected to a power control unit 412 for initially reducing power to reduce the rotational speed, and then, after a predetermined period of time, the normal power flows to change the rotational speed to the normal speed.

In addition, a magnetic sensor 423 is mounted on one lower side of the platform 42, and one side upper and lower sides of the vertical fixture surrounding the platform 42 are interlocked with the magnetic sensor 423 to control the vertical motor 41. The dual detection sensor 441 for cutting off the power of) is mounted.

5 is a partially exploded perspective view showing the connection state and the handle portion of the guide rail according to the present invention, the guide rail 8, the fixing guide rail which is open on the inside and fixed to the upper surface of the frame 1 (see Fig. 1) 81 and an elevating guide rail 82 mounted on the fixed guide rail 81 to elevate and open inward.

In addition, a bearing 9 inserted into the elevating guide rail 82 may be mounted at one front side of the elevating plate 5 to guide the elevating of the elevating plate 5.

On the other hand, the front of the elevating plate (5) on both sides of the vertical base 71 and the horizontal stage 72 connecting the upper end of the vertical base 71 and the upper surface of the vertical base 71 protruding from the roller ( 421 is equipped with a handle portion 7 including a guard 73 surrounding the.

6 is a perspective view showing the front and rear wheels of the present invention, Figure 7 is a cross-sectional view taken along line BB of Figure 6, the front and rear wheels 2 are cylindrical bracket 21 and the cylindrical bracket is inserted into the rotating shaft. The disc disk 22 attached to the outer side of 21 is comprised integrally.

And the corner portion where the cylindrical bracket 21 and the disc disk 22 is projected to the inner side so that the outer surface of the rail 10 is in line contact, as well as the rail 10 is in close contact with the inner surface of the disc disk 22. The protrusion 23 having an inner arc portion 231 is formed to prevent the friction.

Figure 8 shows the fall prevention means of the present invention, the front and rear movement wheels 2 of the frame (1), each of the two side bars 12 to be opened to both sides so as to be caught on the rail 10 in the middle of the rotating shaft is mounted; Is connected via a hinge 121, and the electromagnet 13 and the tension spring 14, which are different in polarity from each other, are mounted on the insides of the two hangers 12, and the electromagnet 14 includes a frame 1 ) Is tilted on both sides is connected to the horizontal mercury switch 15 is mounted on the frame (1) so as to hold the rail (10) and connected to the power source when the tilt is inclined.

On the other hand, as shown in Figure 2, the link assembly 51 is composed of an assembly of a plurality of links 511, the middle and both ends are connected to each other, one of the two links 511 of the uppermost The upper end of the link 511 is fixed to the elevating plate 5 through the hinge 512, and the upper end of the other link 511 is equipped with a roller 513 that is moved on the lower surface of the elevating plate 5. The lower end of one link 511 of two links 511 at the lowermost end of the link 511 is fixed to the frame 1 through a hinge 512, and the lower end of the other link 511 has a frame The roller 513 moving on the upper surface of (1) is mounted.

Reference numeral “721” denotes an “operation part” mounted to the handle part 7 so that an operator can operate the work machine.

Hereinafter, the operation of the present invention will be described.

1 and 2, first, when a worker moves the work machine to a desired position, first, the manipulator 721 mounted to the handle part 7 is operated to drive the inside of the frame 1 ( By operating 11) by rotating the front and rear wheels (2) or both wheels (3), to move the work machine to the desired position.

That is, the front and rear moving wheels 2 are moved on the rails 10 mounted in a plurality of rows at the lower part of the greenhouse or orchard, and the two moving wheels 3 are used to change the rail position of the work machine. Will be.

Next, as shown in FIGS. 2 to 4, when adjusting the height of the elevating plate 5 constituting the work machine, first, the vertical motor mounted to the front of the frame 1 through the operation of the operation unit 721. Operation 41 is to operate the lift operation unit 4 that is erected perpendicularly to the outside of the frame 1.

That is, when the vertical screw shaft 43 is rotated forward through the vertical motor 41, the lifting platform 42 mounted on the vertical screw shaft 43 is raised, and conversely, the screw shaft is mounted through the vertical motor 41. The reverse rotation of 43 causes the platform 5 mounted on the vertical screw shaft 43 to descend.

In particular, the cap nut 422 is mounted on the lower end of the platform 42 so that the vertical screw shaft 43 can be fastened. As described above, the platform 42 according to the forward and reverse rotation of the vertical screw shaft 43. Can be raised or lowered.

In addition, as described above, when the lifting platform 42 repeatedly moves up and down, the magnet sensor 423 mounted at the lower part of the lifting platform 42 and the double sensing sensor 441 mounted at the upper and lower parts of the vertical fixing part 441 are provided. By operating, it is possible to prevent the elevating plate 5 from rising above the limit height to prevent the falling of the elevating plate 5, as well as to prevent the elevating plate 5 from falling below the limit to prevent the device from falling. You can prevent giving.

Next, as shown in FIG. 9, when the platform 42 is raised or lowered, the rollers 421 mounted on both sides of the platform 42 are also elevated.

Therefore, when the length of the wire 6 wound on the roller 421 is limited, when the roller 421 is raised, the lifting plate 5 having one end of the wire 6 fixed thereon rises, on the contrary, When 421 is lowered, the lifting plate 5 to which one end of the wire 6 is fixed is lowered.

That is, one end of the wire 6 is fixed to the lifting plate 5, the other end is fixed to the frame 1, and the middle of the wire 6 is wound on the roller 421. In addition, the lifting plate (5) that can be lifted and lifted.

In addition, the elevating plate 5 may maximize the elevating height (about 2.5 meters) of the elevating plate 5 by moving the distance L2 twice the moving distance L of the roller 421.

1 and 5, the guide rail 8 which guides the lifting by holding the front of the lifting plate 5 at the front of the frame 1 at the moment when the lifting plate 5 is lifted. As it is mounted, it is possible to prevent the noise caused by the swing and the swing generated at the time of lifting the lifting plate (5).

That is, the guide rail 8 is composed of a fixed guide rail 81 which is fixed to the frame 1 and a lifting guide rail 82 mounted inside the fixed guide rail 81, the lifting plate (5) The front of the) is to ensure the stability of the elevating plate 5 by elevating the bearing (9) for moving the elevating guide rail 82 in the interior.

Meanwhile, as shown in FIG. 3, the vertical motor 41 is equipped with a control unit 412 for controlling the supply of power, so that the vertical screw shaft 43 rotates when the lifting plate 5 is operated. By slowing down, the impact on the elevating plate 5 at the beginning of operation can be prevented.

In addition, as shown in FIG. 8, when the whole work machine is inclined at the moment when the work machine is moved on the rail 10, the horizontal mercury switch 15 mounted in the frame 1 detects the inclination. The ON state is maintained, and at the same time, power is applied to the electromagnet 14 mounted on both sides of the hanger 12 mounted symmetrically on both lower sides of the frame 1 so that the hanger 12 is moved to both sides. It will happen.

Therefore, as the locking portions of both ends of the hanger 12 surrounds the rail, it is possible to prevent the fall of the work machine including the frame 1.

On the contrary, when the work machine maintains the horizontal state again, as the horizontal mercury switch 15 maintains the OFF state, the restraint bar may be restrained through the restoring force of the tension spring 14 mounted between the inner sides of the hanger 12. 12) is returned to the original position.

In particular, the technical configuration operated as described above is not limited to agricultural use, it is also applicable to the lifting device of all industrial and transportation.

As described above, the present invention can prevent the safety accidents such as falls by preventing the swing during the lifting and lowering according to the lifting and lowering of the lifting plate through the screw shaft, it is possible to provide a high quality rail work machine by reducing the noise. .

In addition, by freely adjusting the height of the elevating plate corresponding to the length of the screw to ensure a sufficient height of the elevating plate, there is also an effect that can improve the work efficiency of the operator.

In addition, by increasing the speed gradually after decreasing the lifting speed in the early stage of lifting, there is also an effect that can prevent a safety accident by preventing the impact occurs at the initial moment of the rising or falling of the lifting plate.

In addition, by rotating the screw using a motor to prevent the waste of power caused by the use of the conventional hydraulic cylinder, there is also an effect that can increase the charging cycle of the rechargeable battery mounted in the rail work machine.

In addition, by preventing the platform for elevating the lifting plate to rise above the limit or fall below the limit, there is an effect that can prevent safety accidents and failure of the device.

In addition, the frame is prevented from falling on the rail has the effect of ensuring the stability when moving the rail.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Claims (11)

It is mounted on the lower part of the frame 1 and connected to the driving part 11 so as to be able to move forward and backward by riding the rails. In the conventional agricultural rail working machine includes both the moving wheels (3) connected to the drive unit 11 to move to; In front of the frame 1, the lifting operation unit 4 which is lifted by the rotation of the vertical screw shaft 43 through the vertical motor 41 and the lifting table 42 provided with the rollers 421 on both upper sides thereof. Is equipped with, On the upper side of the frame 1 is mounted a lifting plate 5 which is connected to the frame 1 through a link assembly 51, Agricultural rail, characterized in that between the front both sides of the elevating plate (5) and the front both sides of the frame (1) is equipped with a double wire (6) is wound on the roller 421 so that the elevating plate (5) can be elevated Working machine. The vertical screw shaft of claim 1, wherein the lifting and lowering operation unit 4 is connected to a rotation shaft 411 of the vertical motor 41 mounted vertically inside the frame 1 and protrudes out of the frame 1. (43), a lift table 42 which is fastened and lifted by the vertical screw shaft 43, and has a roller 421 on both upper sides, and a vertical holder that surrounds and holds the lift table 42 and is fixed to the frame 1. Agricultural rail work machine, characterized in that consisting of (44). According to claim 1 or 2, wherein the cap nut 422 is mounted on the lower end of the elevating table 42 of the lifting operation unit 4 so that the elevating platform 42 can be elevated to the cap nut 422 Agricultural rail work machine, characterized in that the vertical screw shaft 43 is connected to the rotating shaft 411 of the vertical motor (41). According to claim 1 or 2, wherein the lower side of the platform 42 is mounted with a magnetic sensor 423, the upper and lower sides of the vertical fixture surrounding the platform 42, the magnetic sensor 423 and Rail work device, characterized in that the dual detection sensor 441 is interlocked with each other to block the power of the vertical motor 41 through the control unit. The power control unit 411 of claim 1, wherein the vertical motor 41 is initially connected with a power control unit 411 to reduce the rotational speed by supplying power and to reduce the rotational speed and to flow the normal power supply after a predetermined time. Agricultural rail work machine, characterized in that. According to claim 1, wherein one side of the frame (1) is fixed inside the fixed guide rail 81 and the inside of the fixed guide rail 81, the elevating guide rail (82) A guide rail (8) consisting of a) is mounted, and a bearing (9) inserted into the elevating guide rail (82) to guide the elevating of the elevating plate (5) on one side of the elevating plate (5). Agricultural rail work machine, characterized in that it is additionally mounted. According to claim 1, The front of the elevating plate (5) on both sides of the vertical base 71 and the horizontal base 72 for connecting the upper end of the vertical base 71 and the upper end of the vertical base 71 Agricultural rail work machine, characterized in that the handle portion (7) is further mounted to include a guard (73) protruding to surround the roller (421). 2. The link assembly (51) of claim 1, wherein the link assembly (51) is composed of an assembly of a plurality of links (511) in which the middle and both ends thereof are connected to each other. The upper end is fixed to the elevating plate 5 through the hinge 512, and the upper end of the other link 511 is equipped with a roller 513 that is moved on the lower surface of the elevating plate 5, and the link ( The lower end of one of the two links 511 at the bottom of the 511 is fixed to the frame 1 through a hinge 512, and the lower end of the other link 511 is connected to the lower end of the frame 1. Agricultural rail work machine, characterized in that the roller 513 is mounted to move on the upper surface. The agricultural rail work machine according to claim 1, wherein the elevating plate (5) is constructed by bending an aluminum plate. According to claim 1, wherein the front and rear wheels (2) is integrally composed of a cylindrical bracket 21 inserted into the rotating shaft and a disc disk 22 mounted to the outside of the cylindrical bracket 21, the cylindrical Protruding portion having an inner arc portion 231 to protrude inward to the corner portion where the bracket 21 and the disc disk 22 meet so that the outer surface of the rail is in line contact and prevents friction with the inner surface of the disc disk 22 ( 23) agricultural rail work machine, characterized in that formed. According to claim 1, In the middle of the rotating shaft on which the front and rear wheels (2) of the frame (1) are respectively mounted, both hinges (12) extending from both sides so as to be caught by the rail (10) is hinged (121) It is connected through, the inside of the two hanger 12 is equipped with an electromagnet 13 and the tension spring 14 to be different in polarity from each other, the electromagnet 14 is the case when the frame 1 is tilted Agricultural rail work machine, characterized in that the hanger 12 is connected to the horizontal mercury switch 15 is mounted to the frame (1) to be connected to the power source to hold the rail (10) on both sides.