CN103818834B - Loaders, truck-mounted trucks, and walk-behind trucks - Google Patents

Abstract

A loading and unloading machine comprises a connecting cylinder, wherein a supporting rod is connected in the connecting cylinder in a rotating mode, a rotating power source is fixedly connected outside the connecting cylinder and is in transmission connection with the supporting rod, a rack is connected to the upper end of the supporting rod, a guide rail is arranged at the front part of the rack, a lifting power source and a moving power source are arranged at the rear part of the rack, the lifting power source is in transmission connection with a lifting roller, the moving power source is in transmission connection with a moving roller, a lifting steel cable is wound outside the lifting roller, one end of the lifting steel cable is fixedly connected with the lifting roller, a moving steel cable is wound outside the moving roller; the pulley is connected with the guide rail in a front-back sliding mode and comprises a frame, moving wheels are mounted on the frame in a relative rotation mode and are connected with the guide rail in a sliding mode, two free ends of a moving steel cable are connected with the frame in a closed mode, a front moving guide pulley is mounted on the front end of the frame in a relative rotation mode, and the moving steel cable bypasses the front moving guide pulley.

Description

Loaders, truck-mounted trucks, and walk-behind trucks

technical field

The invention relates to a loading and unloading tool, in particular to a loading and unloading machine, a vehicle-mounted loading and unloading vehicle and a walking loading and unloading vehicle.

Background technique

At present, many buildings are built with cement blocks. The cement blocks need to be loaded and unloaded between the production site and the construction site. This operation is currently carried out manually, which is inefficient. Two laborers load 260 pieces of cement It takes 40 minutes to build blocks, and this is a heavy physical work, which cannot be done by ordinary labor, so there are special requirements for loading and unloading personnel.

In order to liberate the labor force, some people use conveyor belts to transport cement blocks, which only saves manpower, but consumes more labor, and the cement blocks are easy to fall and damage.

There are also people who use a forklift to carry the cement block as a whole, but the requirement is that supports such as planks must be added to the bottom of the block in advance, which is not conducive to operation and can not save time, so the use effect is not good.

Contents of the invention

The object of the present invention is to provide a loading and unloading machine, a vehicle-mounted loading and unloading truck and a walking loading and unloading truck, which save time and labor and have good use effects.

To achieve the above object, the technical solution adopted in the present invention is:

A loading and unloading machine, comprising a connecting cylinder, in which a support rod is connected in relative rotation, and is characterized in that: a rotating power source is fixedly connected to the outside of the connecting cylinder, the rotating power source is connected to the supporting rod by transmission, and the upper end of the supporting rod is connected with a frame, There are guide rails at the front of the frame, and a lifting power source and a moving power source are installed at the rear of the rack. The lifting power source is connected to a lifting roller, and the moving power source is connected to a moving roller. One end of the steel cable is fixedly connected with the lifting drum, and the moving steel cable is wound outside the moving drum, and the free end of the moving steel cable is not connected with the moving drum; there is a pulley connected to the front and rear slides on the guide rail, and the pulley includes a frame, which rotates relatively on the frame The moving wheel is installed, and the moving wheel is slidingly connected with the guide rail. The two free ends of the moving cable are closed and connected with the frame. The front end of the frame is relatively rotated and installed with a front moving guide pulley. There are also rear lifting wheels and front lifting wheels which are relatively rotated on the top. The rear lifting wheels are located behind the front lifting wheels. A lifting pulley is arranged under the rear lifting wheels and the front lifting wheels. The free ends of the lifting cables go around the front lifting wheels and the lifting The movable pulley and the rear lifting wheel are fixedly connected to the front end of the frame; a gripping mechanism is attached to the bottom of the lifting movable pulley, and the gripping mechanism includes a fixed plate. There are multiple clamp legs hinged on the edge of the fixed plate. The horizontal projection of the clamp legs is based on the center of the fixed plate The axis is the center and it is radially distributed. The upper end of the clamp leg extends to the central axis of the fixed plate. The center of the fixed plate is fixedly connected with a sleeve. Inside the sleeve, a telescopic rod is connected up and down. The upper end of the telescopic rod is connected with the lifting pulley. The clamping leg braces are fixedly connected, and the clamping leg braces are located below the planes defined by the upper ends of all the clamping legs, and the horizontal projections of the planes determined by the upper ends of all the clamping legs are located within the range of the clamping leg braces.

According to the loading and unloading machine described above, it is characterized in that: the edge of the clamping leg support plate is fixedly connected with a positioning rod, the positioning rod is arranged vertically, and a plurality of positioning holes are arranged up and down on the positioning rod, and the fixing plate or the sleeve A pin buckle is hinged through the support frame, the front end of the pin buckle is located in the positioning hole, a spring is connected between the front part of the pin buckle and the support frame, and an electromagnet is connected to the fixing plate under the pin buckle rear part.

According to the loading and unloading machine described above, it is characterized in that: the lower end of the connecting cylinder is fixedly connected with a base through a flange, the outside of the base is fixedly connected with a steering bearing, and the outer side of the steering bearing is connected with a support wheel for relative rotation, and the support wheel is under the flange; A self-drawing steel cable is connected between the rear end of the frame and the steering bearing, and a tie bar is connected between the front end of the guide rail and the middle part of the frame.

According to the loading and unloading machine, it is characterized in that: the middle part of the frame is equipped with an upper moving guide pulley, a lower moving guide pulley and a rear lifting guide pulley, the upper moving guide pulley is located above the lower moving guide pulley, and the lower moving guide pulley is located above the lower moving guide pulley. and the rear lifting guide pulley are arranged close to the guide rail, and one side of the moving cable is bypassed from the upper moving guide pulley, and the other side is bypassed from the lower moving guide pulley; Bypass below.

According to the loading and unloading machine, it is characterized in that: the vehicle frame is fixedly connected with a moving pull rod, and the two ends of the moving steel cable are connected with the moving pull rod; the lifting pulley is connected with a hook, and the upper end of the telescopic rod is connected with a A hanging ring, the hook is connected with the hanging ring; the inner side of the lower end of the clamp leg is fixedly connected with a non-slip pad.

According to the loading and unloading machine, it is characterized in that: the rotating power source is connected with a driving bevel gear, the outer surface of the support rod is connected with a driven bevel gear, and the driving bevel gear is connected with the driven bevel gear.

According to the loading and unloading machine described above, it is characterized in that: the outer side of the steering bearing is fixedly connected with a connecting frame, the support wheel is relatively rotatably connected to the connecting frame, the connecting frame is fixedly connected with a connecting ring, and the self-drawing steel cable is connected to the Between the rear end of the frame and the connecting ring; a connecting sleeve is fixedly connected to the bottom of the frame, and the connecting sleeve is set on the upper end of the support rod. The connecting sleeve and the supporting rod are respectively provided with through holes, and the through holes are inserted with rotating Connecting pin; the outside of the connecting sleeve is fixedly connected with the lower positioning sleeve, the frame is fixedly connected with the upper positioning sleeve, the upper positioning sleeve and the lower positioning sleeve correspond up and down, and the upper positioning sleeve and the lower positioning sleeve Anti-rotation positioning pin.

According to the loading and unloading machine, it is characterized in that: a distribution box is installed on the frame, a contactor and a receiver are connected to the distribution box, the loading and unloading machine also includes a remote controller, and the remote controller corresponds to the receiver , the remote controller is connected to the receiver through signal communication.

A vehicle-mounted loading and unloading vehicle, including a vehicle, which includes a vehicle body, with walking wheels under the vehicle body, and a tray on the rear side of the vehicle body. A connecting seat is fixedly connected to the middle part of the seat, a diagonal strut is fixedly connected between the connecting seat and the supporting seat, the aforementioned loader is connected to the upper end of the connecting seat, and the base is connected to the connecting seat.

A walking loading and unloading truck includes a traveling mechanism, the traveling mechanism includes a fuselage, a power system is provided inside the fuselage, there are walking wheels under the fuselage, and a steering handle is provided at one end of the fuselage. It is characterized in that: the fuselage is fixedly connected There is a connecting seat, the upper end of the connecting seat is connected with the aforementioned loading and unloading machine, and the base is connected with the connecting seat; a counterweight box is also fixedly connected on the fuselage.

The invention comprises a guide rail, on which a pulley is installed, the bottom end of the pulley is connected with a lifting pulley, and the lifting pulley is connected with a grasping mechanism. When the lifting movable pulley rises, the electromagnet sucks the overhead buckle, and the lifting movable pulley drives the clamping leg support plate to rise, the clamping legs are tightened, and the block is clamped firmly. When the block reaches the predetermined position, the lifting movable pulley moves down, the clamping leg support plate slides down, the clamping leg returns to its position, the pin buckle automatically enters the positioning hole of the positioning rod, and the clamping leg cannot be retracted. When the lifting movable pulley rises, the clamping leg is separated from the block , to complete a working procedure.

The invention can replace manual loading and unloading of cement blocks. Compared with the background technology, it only takes 20 minutes for one person to operate the machine to install 260 blocks, which saves time and effort, and saves cost to a large extent.

Description of drawings

Fig. 1 is the front view structure schematic diagram of loading and unloading machine described in the present invention;

Fig. 2 is a top view structural schematic diagram of the mobile system in Fig. 1;

Fig. 3 is a top view structural schematic diagram of the lifting system in Fig. 1;

Fig. 4 is a top view structural schematic diagram of the grasping mechanism in the present invention;

Fig. 5 is a schematic structural view of the vehicle in the vehicle-mounted loading and unloading vehicle of the present invention;

Fig. 6 is a schematic structural view of the bracket in Fig. 5;

Fig. 7 is a schematic structural view of the traveling mechanism of the walking loading and unloading vehicle of the present invention.

In the attached picture:

1. Base; 2. Flange; 3. Steering bearing; 4. Support rod; 5. Connection frame; 6. Support wheel; 7. Connection ring; 8. Connection cylinder; 9. Driven bevel gear; 10. Drive cone Gear; 11. Rotating power source; 12. Self-pulling steel cable; 13. Lower positioning sleeve; 14. Upper positioning sleeve; 15. Rack; 16. Lifting power source; 17. Mobile power source; 18. Lifting roller ;19, lifting cable; 20, moving roller; 21, contactor; 22, distribution box; 23, receiver; 24, upper moving guide pulley; 25, lower moving guide pulley; 26, rear lifting guide pulley; , guide rail; 28, moving cable; 29, moving wheel; 30, vehicle frame; 31, moving pull rod; 32, rear lifting wheel; 33, front lifting wheel; 34, front moving guide pulley; 35, lifting moving pulley; 36, Hook; 37, hanging ring; 38, telescopic rod; 39, clamp leg support plate; 40, clamp leg; 41, fixed plate; 42, sleeve; 43, positioning rod; 44, support frame; 45, electromagnet; 46 , anti-slip mat; 47, pin buckle; 48, spring; 49, connecting sleeve; 50, rotating connecting pin; 51, anti-rotating positioning pin; 52, car body; 53, walking wheel; 54, tray; , support seat; 57, diagonal brace; 58, connection seat; 59, fuselage; 60, counterweight box; 61, power system; 62, steering handle.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

A loading and unloading machine, as shown in Figures 1 to 4, includes a connecting cylinder 8, a support rod 4 is connected to the connecting cylinder 8 for relative rotation, and a rotating power source 11 is fixedly connected to the outside of the connecting cylinder 8, and the rotating power source 11 and the supporting rod 4 are connected by transmission, the upper end of the support rod 4 is connected with a frame 15, the front of the frame 15 has a guide rail 27, the rear of the frame 15 is equipped with a lifting power source 16 and a mobile power source 17, and the lifting power source 16 is connected to a lifting drum 18. The mobile power source 17 is connected with a moving drum 20. The lifting drum 18 is wound with a lifting wire 19. One end of the lifting wire 19 is fixedly connected with the lifting drum 18. The moving drum 20 is wound with a moving wire 28. The free end of cable rope 28 is not linked to each other with mobile drum 20; On guide rail 27, front and back sliding is connected with tackle, and tackle comprises vehicle frame 30, and mobile wheel 29 is installed with relative rotation on vehicle frame 30, and mobile wheel 29 links to each other with guide rail 27 sliding, moves Two free ends of steel cable 28 are closed and connected with vehicle frame 30, and frame 15 front ends are equipped with front moving guide pulley 34 relative to rotation, and moving steel cable 28 walks around from front moving guide pulley 34, and vehicle frame 30 is also relatively rotated and installed with Rear lift wheel 32 and front lift wheel 33, rear lift wheel 32 is positioned at front lift wheel 33 rears, rear lift wheel 32 and front lift wheel 33 below are provided with lift pulley 35, and the free end of lift cable 19 walks around front lift wheel successively 33. The lifting pulley 35 and the rear lifting pulley 32 are fixedly connected to the front end of the frame 15; a gripping mechanism is attached below the lifting pulley 35, and the gripping mechanism includes a fixed plate 41, and a plurality of clamping legs 40 are hinged on the edge of the fixed plate 41. The horizontal projection of the clamp legs 40 is radially distributed around the central axis of the fixed plate 41. The upper end of the clamp legs 40 stretches toward the central axis of the fixed plate 41. The center of the fixed plate 41 is fixedly connected with a sleeve 42, which is up and down inside the sleeve 42. Flexible connection is provided with telescopic rod 38, and telescopic rod 38 upper ends link to each other with lifting movable pulley 35, and telescopic rod 38 is fixedly connected with clamping leg support plate 39, and clamping leg support plate 39 is positioned at the below of the plane determined by the upper ends of all clamping legs 40, and all clamping legs The horizontal projection of the plane defined by the upper end of 40 is located within the range where the leg support plate 39 is located.

The edge of clamping leg support plate 39 is fixedly connected with positioning rod 43, and positioning rod 43 is arranged vertically, and positioning rod 43 is arranged up and down to be provided with a plurality of positioning holes, and described fixed plate 41 or described sleeve 42 are hinged with pin by bracing frame 44. Buckle 47, the front end of pin buckle 47 is positioned at positioning hole, is connected with spring 48 between pin buckle 47 front parts and bracing frame 44, and pin buckle 47 rear portion fixed plate 41 is connected with electromagnet 45.

In this embodiment, the lower end of the connecting cylinder 8 is fixedly connected to the base 1 through the flange 2, the outer surface of the base 1 is fixedly connected to the steering bearing 3, and the outer side of the steering bearing 3 is connected to the support wheel 6 for relative rotation, and the support wheel 6 is supported on the flange. Below the blue 2; between the rear end of the frame 15 and the steering bearing 3, a self-drawing steel cable 12 is connected, and a tie bar is connected between the front end of the guide rail 27 and the middle part of the frame 15. root

The relative rotation of the middle part of the frame 15 is equipped with an upper mobile guide pulley 24, a lower mobile guide pulley 25 and a rear lifting guide pulley 26. The upper mobile guide pulley 24 is located above the lower mobile guide pulley 25. Pulley 26 is arranged near described guide rail 27, and wherein one side of described moving cable 28 walks around from upper moving guide pulley 24, and the other side walks around from lower moving guide pulley 25; Guide pulley 26 lower limit walks around.

The vehicle frame 30 is fixedly connected with a moving pull rod 31, and the two ends of the moving steel cable 28 are connected with the moving pull rod 31; the lifting pulley 35 is connected with a hook 36, and the upper end of the telescopic rod 38 is connected with a hanging ring 37, The hook 36 is connected with the hanging ring 37 ; the inner side of the lower end of the clamp leg 40 is fixedly connected with a non-slip pad 46 .

The rotating power source 11 is connected with a driving bevel gear 10 in transmission, and the outside of the support rod 4 is connected with a driven bevel gear 9 , and the driving bevel gear 10 is connected with the driven bevel gear 9 through transmission. The outer side of the steering bearing 3 is fixedly connected with a connecting frame 5, the support wheel 6 is connected to the connecting frame 5 in relative rotation, the connecting frame 5 is fixedly connected with a connecting ring 7, and the self-drawing steel cable 12 is connected to the frame Between the rear end of 15 and the connecting ring 7; a connecting sleeve 49 is fixedly connected below the frame 15, and the connecting sleeve 49 is set on the upper end of the support rod 4, and the connecting sleeve 49 and the supporting rod 4 are respectively provided with through holes. The connecting pin 50 is plugged with rotation; the outside of the connecting sleeve 49 is fixedly connected with the lower positioning sleeve 13, and the frame 15 is fixedly connected with the upper positioning sleeve 14, and the upper positioning sleeve 14 corresponds up and down with the lower positioning sleeve 13, and the upper positioning An anti-rotation positioning pin 51 is inserted into the sleeve 14 and the lower positioning sleeve 13 .

Described frame 15 is equipped with distribution box 22, is connected with contactor 21 and receiver 23 on the distribution box 22, and this loading and unloading machine also comprises remote controller, and remote controller is corresponding to receiver 23, and remote controller is connected with receiver. Machine 23 is connected through signal communication.

A vehicle-mounted loading and unloading vehicle, as shown in Figures 5 and 6, includes a vehicle, which includes a vehicle body 52, with running wheels 53 below the vehicle body 52, a tray 54 on the rear side of the vehicle body 52, and a tray 54 above A bracket 55 is fixedly connected, the bracket 55 includes a support seat 56, the middle part of the support seat 56 is fixedly connected with a connection seat 58, and a diagonal strut 57 is fixedly connected between the connection seat 58 and the support seat 56, and the upper end of the connection seat 58 is connected with the above-mentioned loading and unloading Machine, the base 1 is connected with the connecting seat 58.

A kind of walking loading and unloading vehicle, as shown in Figure 7, comprises traveling mechanism, and traveling mechanism comprises fuselage 59, is provided with power system 61 in fuselage 59, has traveling wheel 53 below fuselage 59, and fuselage 59 one end has Steer handle 62, fuselage 59 is fixedly connected with connecting seat 58, and connecting seat 58 upper end is connected with above-mentioned loader, and described base 1 is connected with connecting seat 58; Fuselage 59 is also fixedly connected with counterweight box 60.

The above-described embodiments are only described to the preferred implementation of the present invention, and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made should fall within the protection scope of the present invention, and the technical content claimed in the present invention has been fully recorded in the claims.

In the present invention, two sets of reducers and motors are installed on the frame behind the guide rails, which are used as the lifting power source and the moving power source. There are moving steel cables wrapped around the outside of the moving drum (two-way winding), which drives the pulley forward and backward, and lifts Lifting cables are wound around the outside of the drum to control the rise and fall of the gripping mechanism. The lifting power source and the moving power source are connected with the contactor, and the contactor receives the signal of the remote controller by the receiver. The large turning of the loading and unloading machine in the horizontal plane is realized by the driving bevel gear driven by the rotating power source to drive the driven bevel gear. The front end of the guide rail is equipped with tension bars, and the rear end of the rack is equipped with self-pulling steel cables.

Claims (8)

1. A loading and unloading machine, comprising a connecting cylinder (8), the connecting cylinder (8) is connected with a support rod (4) for relative rotation, and its characteristic is: the connecting cylinder (8) is fixedly connected with a rotating power source (11), The rotating power source (11) is connected to the transmission of the support rod (4), the upper end of the support rod (4) is connected with a frame (15), the front part of the frame (15) has a guide rail (27), and the rear part of the frame (15) Lifting power source (16) and moving power source (17) are installed, and lifting power source (16) transmission is connected with lifting drum (18), and mobile power source (17) transmission is connected with moving drum (20), and lifting drum (18) ) is wound with a lifting cable (19), one end of the lifting cable (19) is fixedly connected with the lifting drum (18), and the moving drum (20) is wound with a moving cable (28), and the moving cable (28) The free end of the free end is not linked to each other with the moving drum (20); the guide rail (27) slides back and forth to be connected with a tackle, and the tackle includes a vehicle frame (30), and the relative rotation on the vehicle frame (30) is equipped with a mobile wheel (29), and the mobile wheel ( 29) Slidingly connected with the guide rail (27), the two free ends of the moving steel cable (28) are closed and connected with the vehicle frame (30), the front end of the frame (15) is relatively rotated and installed with a front moving guide pulley (34), and the moving steel cable Cable (28) walks around from the front mobile guide pulley (34), and the rear elevator wheel (32) and front elevator wheel (33) are also relatively rotatably installed on the vehicle frame (30), and the rear elevator wheel (32) is positioned at the front elevator wheel ( 33) At the rear, a lifting pulley (35) is provided below the rear lifting wheel (32) and the front lifting wheel (33), and the free end of the lifting cable (19) bypasses the front lifting wheel (33) and the lifting pulley (35) in turn 1. The rear lifting wheel (32) is fixedly connected to the front end of the frame (15); the lower part of the lifting pulley (35) is connected with a gripping mechanism, and the gripping mechanism includes a fixed plate (41), and the edge of the fixed plate (41) is hinged. A clamp leg (40), the horizontal projection of the clamp leg (40) is radially distributed around the central axis of the fixed plate (41), the upper end of the clamp leg (40) stretches towards the central axis of the fixed plate (41), and the fixed plate The center of (41) is fixedly connected with sleeve (42), and telescopic rod (38) is movably connected up and down in the sleeve (42), and the upper end of telescopic rod (38) links to each other with lifting pulley (35), and the upper end of telescopic rod (38) The clamping leg support plate (39) is fixedly connected, and the clamping leg support plate (39) is located below the plane defined by the upper ends of all the clamping legs (40), and the horizontal projection of the plane determined by the upper ends of all the clamping legs (40) is located on the clamping leg support plate (39) Inside the range. 2. The loading and unloading machine according to claim 1, characterized in that: the edge of the clamping leg brace (39) is fixedly connected with a positioning rod (43), the positioning rod (43) is vertically arranged, and the positioning rod (43) is up and down A plurality of positioning holes are arranged, and the fixing plate (41) or the sleeve (42) is hinged with a pin buckle (47) through the support frame (44). The front end of the pin buckle (47) is located in the positioning hole, and the pin buckle (47) Spring (48) is connected between buckle (47) front portion and support frame (44), and the fixed plate (41) below pin buckle (47) rear portion is connected with electromagnet (45). 3. The loading and unloading machine according to claim 2, characterized in that: the lower end of the connecting cylinder (8) is fixedly connected to the base (1) through the flange (2), and the outside of the base (1) is fixedly connected to the steering bearing (3 ), the outer side of the steering bearing (3) is connected with a support wheel (6) for relative rotation, and the support wheel (6) is placed under the flange (2); the rear end of the frame (15) is connected to the steering bearing (3) There is a self-drawing steel cable (12), and a tie bar is connected between the front end of the guide rail (27) and the middle part of the frame (15). 4. The loading and unloading machine according to claim 3, characterized in that: the upper moving guide pulley (24), the lower moving guide pulley (25) and the rear lifting guide pulley (26) are installed in the middle of the frame (15) for relative rotation. ), the upper mobile guide pulley (24) is located above the lower mobile guide pulley (25), the lower mobile guide pulley (25) and the rear lifting guide pulley (26) are set close to the guide rail (27), and the mobile cable (28 ) where one side is bypassed from the upper moving guide pulley (24), and the other side is bypassed from the lower moving guide pulley (25); the lifting cable (19) is bypassed from the rear lifting guide pulley (26) . 5. The loading and unloading machine according to claim 4, characterized in that: the frame (30) is fixedly connected with a moving rod (31), and the two ends of the moving cable (28) are connected to the moving rod (31). connection; the lifting pulley (35) is connected with a hook (36), the upper end of the telescopic rod (38) is connected with a hanging ring (37), and the hook (36) is connected with the hanging ring (37); the clamp leg ( 40) The inner side of the lower end is fixedly connected with a non-slip pad (46). 6. The loading and unloading machine according to claim 5, characterized in that: the rotating power source (11) is connected with a driving bevel gear (10), and the outside of the support rod (4) is connected with a driven bevel gear ( 9), the driving bevel gear (10) is connected with the driven bevel gear (9). 7. The loading and unloading machine according to claim 6, characterized in that: the outer side of the steering bearing (3) is fixedly connected with a connecting frame (5), and the supporting wheel (6) is relatively rotatably connected to the connecting frame (5) , the connecting frame (5) is fixedly connected with a connecting ring (7), and the self-drawing steel cable (12) is connected between the rear end of the frame (15) and the connecting ring (7); under the frame (15) A connecting sleeve (49) is fixedly connected, and the connecting sleeve (49) is set on the upper end of the support rod (4). Connecting pin (50); the outside of the connecting sleeve (49) is fixedly connected with the lower positioning sleeve (13), the frame (15) is fixedly connected with the upper positioning sleeve (14), and the upper positioning sleeve (14) and the lower positioning sleeve The cylinder (13) corresponds up and down, and an anti-rotation positioning pin (51) is plugged in the upper positioning sleeve (14) and the lower positioning sleeve (13). 8. The loading and unloading machine according to claim 7, characterized in that: a distribution box (22) is installed on the frame (15), and a contactor (21) and a receiving box are connected to the distribution box (22). machine (23), the loading and unloading machine also includes a remote controller, the remote controller corresponds to the receiver (23), and the remote controller and the receiver (23) are connected through signal communication.