CN2827999Y - Self-loading forklift - Google Patents

Abstract

The utility model discloses a self-loading and unloading forklift, which comprises a vehicle frame, a fork wheel and a fork wheel respectively installed on the fork, the fork is connected with a lifting oil cylinder, the lifting oil cylinder is arranged on the mast, and the mast is connected to the On the frame, the frame beam of the frame is connected to the support mechanism, which also includes a remote controller for controlling the movement of the forklift. A control circuit is also arranged on the frame, and the solenoid valve group in the control circuit is connected to the support mechanism through the oil pipe. Each cylinder is connected. The reason why the utility model can complete the self-loading and unloading function of the forklift is that the support mechanism is installed on the original forklift, and the four oil cylinders are made to cooperate with each other through the use of wireless remote control operation, logic programming control of the programmable controller and electromagnetic valve group. Drive the movement of the fork and the supporting mechanism, plus the forklift's own wheel drive capability, to realize the self-loading and unloading of the forklift.

Description

self loading forklift

technical field

The utility model belongs to the technical field of material handling equipment, in particular to a self-loading and unloading forklift.

Background technique

A forklift is generally composed of a fork, a mast and a frame, and is used to fork goods. Usually, when the forklift needs to be transported by a car, the forklift can be loaded and unloaded by hoisting or using a platform to drive in. In recent years, a variety of self-loading forklifts have appeared abroad, which can easily load or unload the car with its own power without using a crane or using a platform. As described in US Pat 5217342, the vertically telescopic rear axle and the lifting mast work together to make the forklift lift to the height of the floor of the car compartment, and use the telescopic frame and auxiliary wheels to make the forklift enter the car compartment. Because the car is a single-girder telescopic frame, the rigidity of the whole car is insufficient; the rear axle is raised and lowered as a whole, and its structure is relatively complicated; There is also a self-loading forklift that needs to fix a sliding frame on the car box to realize self-loading and unloading, but this method will make the transport vehicle a special vehicle and can only transport the forklift. rack of cars. These forklift trucks also have a general shortcoming exactly when self-loading and unloading need the driver to sit on the forklift truck to operate, and there are hidden dangers in the driver's personal safety.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned shortcomings of the prior art, and provide a self-loading and unloading forklift that is reasonable in design, safe and reliable, easy to use, beautiful in appearance, remote control operation, and suitable for any car.

The technical scheme of the utility model is realized in the following way: the self-loading forklift includes a vehicle frame, the fork wheel and the fork wheel are respectively installed on the fork, the fork is connected with the lifting cylinder, and the lifting cylinder is arranged on the mast. The door frame is connected to the vehicle frame, and the frame beam of the vehicle frame is connected to the supporting mechanism, which also includes a remote control for controlling the movement of the forklift. The supporting mechanism is connected to one end of the telescopic oil cylinder by the telescopic outer arm, and the other end of the telescopic oil cylinder is connected The telescopic inner arm is connected, a slider is set between the telescopic outer arm and the telescopic inner arm, the telescopic inner arm is connected to one end of the folding oil cylinder, the other end of the folding oil cylinder is connected to the supporting outer arm, and the supporting outer arm is connected to one end of the supporting oil cylinder , the other end of the support cylinder is connected with the support inner arm, a slider is provided between the support inner arm and the support outer arm, the tail end of the support outer arm and the telescopic inner arm is equipped with a connecting plate, and the tail end of the support inner arm is equipped with a support wheel .

A control circuit is also arranged on the vehicle frame, and the electromagnetic valve group in the control circuit communicates with each oil cylinder of the supporting mechanism through oil pipes.

Lifting oil cylinder, telescopic oil cylinder, folding oil cylinder and supporting oil cylinder are all bidirectional piston cylinders.

The telescopic outer arm, the telescopic inner arm, the supporting outer arm and the supporting inner arm are all rectangular steel pipes.

An electromagnetic brake is arranged on the hub of the supporting wheel.

The control circuit is composed of a remote control receiver, a programmable controller, a relay group, a solenoid valve, and an electromagnetic brake. The output end of the remote control receiver is connected to an input end of the programmable controller, and the output ends of the programmable controller are respectively connected to Each coil input end of the relay group and the contact end of the relay group are respectively connected to the input ends of the electromagnetic valve and the electromagnetic brake.

The reason why the utility model can complete the self-loading and unloading function of the forklift is that the support mechanism is installed on the original forklift, and the four oil cylinders are made to cooperate with each other through the use of wireless remote control operation, logic programming control of the programmable controller and electromagnetic valve group. Drive the movement of the fork and the supporting mechanism, plus the forklift's own wheel drive capability, to realize the self-loading and unloading of the forklift. In this way, when the forklift needs to be transported by a car, it can conveniently use its own power to load or unload the car by itself without using a crane or a platform, so as to quickly enter the work area for work. The driver of the forklift can be served concurrently by the driver of the car, which saves hoisting costs and manpower. The utility model is particularly suitable for some non-site working environments or in the field. Generally, there are no cranes and bus platforms in these areas, and ordinary forklifts cannot go down to the ground to work even if they are pulled by cars. At this time, it is more suitable to use self-loading forklifts.

Description of drawings

Fig. 1 is the front view structural representation of the utility model;

Fig. 2 is a schematic view of the structure of the utility model;

Fig. 3 is a structural schematic diagram of the utility model support mechanism;

Fig. 4 is a circuit diagram of the control part of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described in detail.

Referring to Figures 1 and 2, the utility model includes a vehicle frame 5, a cargo fork wheel 1, and two groups of cargo fork wheels 1 are installed on the cargo fork 2 respectively, and the cargo fork 2 is connected with the lifting cylinder 3, and the lifting cylinder 3 is configured On the door frame 4 , the door frame 4 is connected to the vehicle frame 5 , and the vehicle frame beam 7 of the vehicle frame 5 is connected to the supporting mechanism 6 .

With reference to shown in Figure 3, the composition of support mechanism 6 is connected one end of telescopic oil cylinder 14 by pin 18 by telescopic outer arm 10, the other end of telescopic oil cylinder 14 is connected with telescopic inner arm 13 by pin 15, telescopic outer arm 10 and telescopic A slider 11 is arranged between the inner arms 13, and the telescopic inner arm 13 is connected to one end of the folding cylinder 12 through a pin 9, and the other end of the folding cylinder 12 is connected to the supporting outer arm 21 through a pin 24, and the connecting plate 16 is connected through a pin 17 is connected with the tail end of the telescopic inner arm 13, the connecting plate 16 is welded on the supporting outer arm 21, one end of the supporting oil cylinder 23 is connected with the supporting outer arm 21 through a pin 19, and the other end of the supporting oil cylinder 23 is connected with the supporting inner arm 22. Bearing pin 25 connects, is provided with slide block 20 between support outer arm 21 and support inner arm 22, and electromagnetic brake 8 is installed on the hub of support wheel 27 and is installed in the tail end of support inner arm 22 by axle 26.

The telescopic outer arm 10, the telescopic inner arm 13, the supporting outer arm 21, and the supporting inner arm 22 are all rectangular steel pipes, and the oil cylinders in the respective arms are driven by pin shafts to perform telescopic movements. Slide block 11 is arranged, is used for reducing the resistance of telescopic movement; Lifting oil cylinder 3, telescopic oil cylinder 14, folding oil cylinder 12, supporting oil cylinder 23 are all bidirectional piston cylinders. The oil cylinder is supplied with pressure oil by the hydraulic pump of the forklift. Through wireless remote control, the remote control receiver receives the instruction and inputs it to the programmable controller. The programmable controller controls the corresponding solenoid valve according to the sequence, so that the pressure oil enters the corresponding oil cylinder and makes it produce stretching motion. The movement of lifting cylinder 3 can make cargo fork 2 move up and down; Lying down horizontally, the support cylinder 23 can support the inner arm to move up and down when the inner and outer arms 22, 21 are vertical. The supporting wheel 27 is provided with an electromagnetic brake 8, and the supporting wheel 27 can be braked or released from the brake by a remote controller.

4, the control circuit 28 is composed of a remote control receiver 29, a programmable controller 30, a relay group 31, a solenoid valve group, that is, a vehicle lifting/lowering solenoid valve 32, and an extending/retracting solenoid valve 33. , a vertical/folding electromagnetic valve 34, a rear support lifting/lowering electromagnetic valve 35, a lifting cylinder electromagnetic valve 36, and an electromagnetic brake 8, the output end of the remote control receiver 29 is connected to an input end of the programmable controller 30, programmable The output terminals of the controller 30 are respectively connected to the input terminals of each coil group of the relay, and the contact terminals of the relay group 31 are respectively connected to the vehicle lifting/lowering solenoid valve 32, the extending/retracting solenoid valve 33, and the vertical/folding solenoid valve 34 , the rear support lifting/lowering solenoid valve 35, the lifting cylinder solenoid valve 36, the input end of the electromagnetic brake 8, and the other end is grounded.

The working process is as follows:

During the self-loading of forklift, enter ready state, forklift fully stretches out earlier by folding oil cylinder 12, makes support inner and outer arm 22,21 vertical. The fork wheel 1 is raised and pressed down on the vehicle compartment plate by traveling and lifting cylinder 3 .

Under the remote control operation, the forklift is retracted through the lifting cylinder 3, and then the fork wheel 1 is further pressed down on the car compartment plate. Since the car compartment plate cannot continue to sink, the front half of the forklift starts to leave the ground and go upward. At the same time, the support cylinder 23 stretches out, so that the support inner arm 22 drives the support wheel 27 to move downward, and when the support wheel 27 touches the ground, the second half of the forklift also leaves the ground and moves upward; Lifting oil cylinder 3 and supporting oil cylinder 23 move simultaneously and synchronously, so the vehicle frame 5 of the forklift keeps a horizontal state all the time and can not tilt in the process of rising.

When the forklift was raised to the highest point, the telescopic oil cylinder 14 of the forklift moved when the remote control button was pressed again, and the support wheel was braked simultaneously. Because support inner and outer arm 22,21 can not move backward when support wheel 27 brakes, so just make forklift truck frame 5 move forward, and make forklift front wheel enter in the automobile compartment.

The forklift moves downward simultaneously and synchronously through the lifting cylinder 3 and the supporting cylinder 23, so that the vehicle frame 5 is moved downward until the front wheel of the forklift is pressed on the vehicle compartment plate.

The forklift support wheel 27 brakes are released, and the forklift rear wheel is also entered in the automobile compartment by the front wheel travel.

Since the forklift frame 5 has completely entered the vehicle compartment, the support inner arm 22 can be retracted. The forklift makes the support inner arm 22 retract completely through the retraction movement of the support cylinder 23 .

The retraction movement of the telescopic oil cylinder 14 by the forklift makes the telescopic inner and outer arms 13, 10 fully retracted.

The forklift makes the support inner and outer arms 13, 10 lie down horizontally through the retraction movement of the folding oil cylinder 12.

So far, the forklift has completed the self-installation process.

The self-unloading process of the forklift is completely opposite to the self-loading process, and the movement process of each cylinder is also opposite.

Claims (8)

1. Self-loading forklift, including the frame (5), the fork wheel (1), and the fork wheel (1) are respectively installed on the fork (2), and the fork (2) is connected with the lifting cylinder (3), The lifting cylinder (3) is arranged on the mast (4), the mast (4) is connected on the vehicle frame (5), and the vehicle frame beam (7) of the vehicle frame (5) is connected with the support mechanism (6), wherein Also includes a remote controller for controlling the movement of the forklift, characterized in that the support mechanism (6) is connected to one end of the telescopic oil cylinder (14) by the telescopic outer arm (10), and the other end of the telescopic oil cylinder (14) is connected to the telescopic inner arm ( 13) connection, a slide block (11) is arranged between the telescopic outer arm (10) and the telescopic inner arm (13), the telescopic inner arm (13) is connected to one end of the folding oil cylinder (12), and the other end of the folding oil cylinder (12) Connect with the support outer arm (21), the support outer arm (21) is connected with one end of the support oil cylinder (23), the other end of the support oil cylinder (23) is connected with the support inner arm (22), and the support inner arm (22) A slide block (20) is arranged between the support outer arm (21). 2. The self-loading forklift according to claim 1, characterized in that a connecting plate (16) is arranged at the tail end of the supporting outer arm (21) and the telescopic inner arm (13). 3. The self-loading forklift according to claim 1, characterized in that a support wheel (27) is arranged at the rear end of the support inner arm (22). 4. The self-loading forklift according to claim 1, characterized in that a control circuit (28) is also arranged on the vehicle frame (5), and the solenoid valve group in the control circuit (28) is the lifting/lowering of the whole vehicle. Solenoid valve (32), extend/retract solenoid valve (33), vertical/fold solenoid valve (34), rear support lifting/lowering solenoid valve (35), lifting cylinder solenoid valve (36), through oil pipe and The lifting oil cylinder (3), the telescopic oil cylinder (14), the folding oil cylinder (12), and the supporting oil cylinder (23) of the support mechanism (6) are connected. 5. The self-loading forklift according to claim 1, characterized in that the lifting cylinder (3), the telescopic cylinder (14), the folding cylinder (12), and the supporting cylinder (23) are all bidirectional piston cylinders. 6. The self-loading forklift according to claim 1, characterized in that the telescopic outer arm (10), the telescopic inner arm (13), the supporting outer arm (21), and the supporting inner arm (22) are all rectangular steel pipes. 7. The self-loading forklift according to claim 1, characterized in that an electromagnetic brake (8) is provided on the hub of the support wheel (27). 8. The self-loading forklift according to claim 1, characterized in that, the control circuit (28) is composed of a remote control receiver (29), a programmable controller (30), a relay group (31), and a solenoid valve group That is, the whole vehicle lifting/lowering solenoid valve (32), extending/retracting solenoid valve (33), vertical/folding solenoid valve (34), rear support lifting/lowering solenoid valve (35), lifting cylinder solenoid valve (36), electromagnetic brake (8) is formed, and the output end of remote control receiver (29) connects an input end of programmable controller (30), and the output end of programmable controller (30) connects relay group (31) respectively Each coil input end of the relay group (31) is connected to the whole vehicle lifting/lowering solenoid valve (32), extending/retracting solenoid valve (33), vertical/folding solenoid valve of the solenoid valve group respectively. (34), the input end of the rear support lifting/lowering solenoid valve (35), the lifting cylinder solenoid valve (36), and the electromagnetic brake (8).

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