Floating leveling electric control system

Abstract

The utility model discloses a floating leveling electric control system, and aims to provide a floating leveling electric control system which can be suitable for different road surface or space working conditions. The system comprises a power controller which is used for providing a stable power supply for the control system; the controller is connected with a control valve block and is electrically connected with the power controller; the left thumb switch is electrically connected with the controller; the right thumb switch is electrically connected with the controller; the left-right inclination switch is electrically connected with the controller; the tilt angle sensor is electrically connected with the controller; the front right floating oil cylinder is electrically connected with the control valve block; the rear left floating oil cylinder is electrically connected with the control valve block; the left supporting leg oil cylinder is electrically connected with the control valve block; and the right supporting leg oil cylinder is electrically connected with the control valve block. The telescopic boom forklift truck has the advantages that the problem that the telescopic boom forklift truck is limited by the ground or space is solved, and the telescopic boom forklift truck is suitable for different road surface or space working conditions.

Description

Technical Field

[0001] This utility model relates to the technical field of engineering machinery technology, and in particular to a floating leveling electric control system. Background Technology

[0002] In the fields of engineering machinery technology and agricultural aerial work, telescopic boom forklifts are used to solve the problem of being able to travel or work at heights without being restricted by road surface. In traditional engineering machinery or agricultural machinery, due to the ground or spatial location, it is impossible to achieve stable high-altitude operations, and the requirements for the stability of the entire vehicle are extremely high. Therefore, the working surface and the center of gravity of the vehicle must meet certain conditions before it can be used. Utility Model Content

[0003] The present invention aims to overcome the aforementioned deficiencies in the prior art and provides a floating leveling electric control system that is suitable for different road surfaces or spatial conditions.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A floating leveling electrical control system, including

[0006] A power controller is used to provide a stable power supply to the control system.

[0007] The controller, which is connected to the control valve block and electrically connected to the power controller, serves as a control unit to receive input signals and output control signals through the control valve block.

[0008] The left thumb switch is electrically connected to the controller and is used to input the lifting control signal of the left outrigger of the vehicle body to the controller;

[0009] The right thumb switch is electrically connected to the controller and is used to input the lifting control signal of the right outrigger of the vehicle body to the controller.

[0010] The left and right tilt switches are electrically connected to the controller and are used to input the left and right tilt control signals of the vehicle body to the controller.

[0011] The tilt sensor, electrically connected to the controller, is used to input the vehicle tilt angle signal to the controller;

[0012] The front right floating cylinder is electrically connected to the control valve block and is used to receive the left and right floating signals output by the controller.

[0013] The rear left floating cylinder is electrically connected to the control valve block and is used to receive the left and right floating signals output by the controller;

[0014] The left outrigger cylinder is electrically connected to the control valve block and is used to receive the left outrigger lifting signal output by the controller.

[0015] The right outrigger cylinder is electrically connected to the control valve block and is used to receive the right outrigger lifting signal output by the controller.

[0016] When the vehicle is fully loaded, control signals are input to the controller via the left and right thumb switches. Upon receiving these signals, the controller outputs them to the left and right outriggers via the control valve block, simultaneously raising them to support the ground and reducing stress on the front axle. Similarly, signals are input to the controller via the tilt switches. Upon receiving these signals, the controller outputs signals to the control valve block, causing the front right or rear left floating cylinder to actuate, tilting the vehicle to the left or right. A tilt sensor mounted on the vehicle body feeds back the tilt angle signal to the controller. The controller compares the tilt angle with preset threshold values ​​and then controls the front right or rear left floating cylinder via the control valve block until the vehicle is level. In summary, the technical solution of this application perfectly solves the problem of ground or space limitations for telescopic boom forklifts, making them suitable for various road and space conditions.

[0017] Preferably, the control valve block is equipped with a left outrigger solenoid valve group, a right outrigger solenoid valve group, a front right floating solenoid valve group, and a rear left floating solenoid valve group. The control valve block is electrically connected to the left outrigger cylinder through the left outrigger solenoid valve group, the right outrigger cylinder through the right outrigger solenoid valve group, the front right floating cylinder through the front right floating solenoid valve group, and the rear left floating cylinder through the rear left floating solenoid valve group.

[0018] Preferably, the control valve block is further provided with a switching solenoid valve, and the control valve block is electrically connected to the front right floating cylinder and the rear left floating cylinder respectively through the switching solenoid valve.

[0019] Preferably, the vehicle body includes a body, a front left wheel, a front right wheel, a rear left wheel, and a rear right wheel. The front left wheel and the front right wheel are respectively installed on the left and right sides of the front end of the body, and the rear left wheel and the rear right wheel are respectively installed on the left and right sides of the rear end of the body. The front right floating cylinder is installed at the front end of the body and near the location of the front right wheel, and the rear left floating cylinder is installed at the rear end of the body and near the location of the rear left wheel. The power controller, controller, control valve block, and tilt sensor are all installed at the middle position of the front end of the body.

[0020] Preferably, a left support leg is provided at the front end of the vehicle body and in front of the front left wheel, the left support leg is rotatably connected to the vehicle body, and the left support leg cylinder is installed between the left support leg and the vehicle body; a right support leg is provided at the front end of the vehicle body and in front of the front right wheel, the right support leg is rotatably connected to the vehicle body, and the right support leg cylinder is installed between the right support leg and the vehicle body.

[0021] Preferably, the vehicle body is provided with a control room, and the left thumb switch, right thumb switch and left and right tilt switches are all installed in the control room and electrically connected to the controller on the vehicle body through wires.

[0022] The beneficial effects of this utility model are: it solves the problem of telescopic boom forklifts being limited by ground or space, making telescopic boom forklifts suitable for different road or space conditions. Attached Figure Description

[0023] Figure 1 This is the electrical schematic diagram of this utility model;

[0024] Figure 2 , Figure 3 This is a schematic diagram of the structure of this utility model.

[0025] In the diagram: 1. Power controller, 2. Left thumb switch, 3. Right thumb switch, 4. Tilt sensor, 5. Controller, 6. Control valve block, 7. Rear left floating cylinder, 8. Left outrigger cylinder, 9. Left outrigger, 10. Right outrigger cylinder, 11. Right outrigger, 12. Front right floating cylinder, 13. Left and right tilt switches. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 In the described embodiments, a floating leveling electrical control system includes:

[0028] Power controller 1 is used to provide a stable power supply to the control system;

[0029] Controller 5 is connected to control valve block 6 and electrically connected to power controller 1. It serves as a control unit to receive input signals and output control signals through control valve block 6.

[0030] The left thumb switch 2 is electrically connected to the controller 5 and is used to input the lifting control signal of the left outrigger 9 of the vehicle body to the controller 5;

[0031] The right thumb switch 3 is electrically connected to the controller 5 and is used to input the lifting control signal of the right outrigger 11 of the vehicle body to the controller 5.

[0032] The left and right tilt switch 13 is electrically connected to the controller 5 and is used to input the left and right tilt control signal of the vehicle body to the controller 5.

[0033] Tilt sensor 4 is electrically connected to controller 5 and is used to input the vehicle tilt angle signal to controller 5.

[0034] The front right floating cylinder 12 is electrically connected to the control valve block 6 and is used to receive the left and right floating signals output by the controller 5.

[0035] The rear left floating cylinder 7 is electrically connected to the control valve block 6 and is used to receive the left and right floating signals output by the controller 5.

[0036] The left outrigger cylinder 8 is electrically connected to the control valve block 6 and is used to receive the lifting signal of the left outrigger 9 output by the controller 5.

[0037] The right outrigger cylinder 10 is electrically connected to the control valve block 6 and is used to receive the lifting signal of the right outrigger 11 output by the controller 5.

[0038] The control valve block 6 contains a left support leg 9 solenoid valve assembly, a right support leg 11 solenoid valve assembly, a front right floating solenoid valve assembly, and a rear left floating solenoid valve assembly. The control valve block 6 is electrically connected to the left support leg cylinder 8 via the left support leg 9 solenoid valve assembly, to the right support leg cylinder 10 via the right support leg 11 solenoid valve assembly, to the front right floating cylinder 12 via the front right floating solenoid valve assembly, and to the rear left floating cylinder 7 via the rear left floating solenoid valve assembly. The control valve block 6 also contains a switching solenoid valve, which is electrically connected to both the front right floating cylinder 12 and the rear left floating cylinder 7.

[0039] like Figure 2 , Figure 3 As shown, the vehicle body includes a body, a front left wheel, a front right wheel, a rear left wheel, and a rear right wheel. The front left and front right wheels are respectively installed on the left and right sides of the front end of the body, and the rear left and rear right wheels are respectively installed on the left and right sides of the rear end of the body. The front right floating cylinder 12 is installed at the front end of the body near the front right wheel, and the rear left floating cylinder 7 is installed at the rear end of the body near the rear left wheel. The power controller 1, controller 5, control valve block 6, and tilt sensor 4 are all installed at the middle of the front end of the body. A left support leg 9 is located at the front end of the body, in front of the front left wheel, and is rotatably connected to the body. A left support leg cylinder 8 is installed between the left support leg 9 and the body. A right support leg 11 is located at the front end of the body, in front of the front right wheel, and is rotatably connected to the body. A right support leg cylinder 10 is installed between the right support leg 11 and the body. A control room is located on the body. The left thumb switch 2, right thumb switch 3, and left / right tilt switch 13 are all installed in the control room and electrically connected to the controller 5 on the body via wires.

[0040] Depend on Figure 1As can be seen from the electrical schematic diagram, the left thumb switch 2, right thumb switch 3, left and right tilt switches 13, and tilt sensor 4 are input signal elements; controller 5 is the control unit; control valve block 6 is the control element; front right floating cylinder 12 and rear left floating cylinder 7 are floating actuators; left outrigger cylinder 8 on left outrigger 9 and right outrigger cylinder 10 on right outrigger 11 are outrigger lifting actuators.

[0041] The specific implementation is as follows:

[0042] This control system consists of the following components: a power controller 1 that supplies power to the control system, providing a stable power supply; left thumb switches 2 and 3 that are operated by actuation, sending the input signal of the left thumb switch 2 to the controller 5, and the controller 5, upon receiving the input signal, executes an output signal to the left outrigger solenoid valve group (including the left outrigger raising solenoid valve and the left outrigger lowering solenoid valve) in the control valve block 6, thereby controlling the left outrigger cylinder 8 on the corresponding left outrigger 9 to perform raising and lowering actions; sending the input signal of the right thumb switch 3 to the controller 5, and the controller 5, upon receiving the input signal, executes an output signal to the right outrigger solenoid valve group (including the right outrigger raising solenoid valve and the right outrigger lowering solenoid valve) in the control valve block 6, thereby controlling the right outrigger cylinder 10 on the corresponding right outrigger 11 to perform raising and lowering actions; when the vehicle is loaded, the left and right outriggers rise simultaneously to support the ground, thereby reducing the stress on the front axle of the vehicle body.

[0043] Similarly, when the tilt switch 13 is pressed to the left or right, the input signal from the tilt switch 13 is sent to the controller 5. After receiving the left signal from the tilt switch 13, the controller 5 outputs a signal to the front right floating solenoid valve group and the rear left floating solenoid valve group in the control valve block 6, thereby causing the front right floating cylinder 12 or the rear left floating cylinder 7 to rise or fall, realizing the left and right tilt of the vehicle body. The logic here is that while the controller 5 outputs a signal to the front right floating solenoid valve group and the rear left floating solenoid valve group in the control valve block 6, the tilt angle sensor 4 mounted on the vehicle body feeds back the longitudinal and lateral tilt angle signals of the vehicle body to the controller 5. The controller 5 compares the received tilt angle with the preset angle threshold inside the controller 5 and makes a logical judgment to limit the left and right tilt angle of the vehicle body within the preset angle. When the angle of one side is too large, the controller 5 outputs a control to lower the corresponding floating cylinder and raise the other floating cylinder until the vehicle body is level.

[0044] In addition, when the whole vehicle is moving, the left support leg 9 and the right support leg 11 must be raised. The controller 5 controls the switching solenoid valve in the control valve block 6 to enable the front right floating cylinder 12 and the rear left floating cylinder 7 to float freely (this free floating control logic is preset inside the controller 5 to meet the vehicle's movement requirements), thus enabling the whole vehicle to float while moving.

Claims

1. A floating leveling electric control system, characterized in that, include A power controller (1) is used to provide a stable power supply to the control system; The controller (5) is connected to the control valve block (6) and is electrically connected to the power controller (1). It serves as a control unit to receive input signals and output control signals through the control valve block (6). The left thumb switch (2) is electrically connected to the controller (5) and is used to input the lifting control signal of the left outrigger (9) of the vehicle body to the controller (5). The right thumb switch (3) is electrically connected to the controller (5) and is used to input the lifting control signal of the right outrigger (11) of the vehicle body to the controller (5). The left and right tilt switch (13) is electrically connected to the controller (5) and is used to input the left and right tilt control signal of the vehicle body to the controller (5). The tilt sensor (4) is electrically connected to the controller (5) and is used to input the vehicle tilt angle signal to the controller (5). The front right floating cylinder (12) is electrically connected to the control valve block (6) and is used to receive the left and right floating signals output by the controller (5); The rear left floating cylinder (7) is electrically connected to the control valve block (6) and is used to receive the left and right floating signals output by the controller (5); The left outrigger cylinder (8) is electrically connected to the control valve block (6) and is used to receive the left outrigger (9) lifting signal output by the controller (5); The right outrigger cylinder (10) is electrically connected to the control valve block (6) and is used to receive the right outrigger (11) lifting signal output by the controller (5).

2. A floating leveling electric control system according to claim 1, characterized in that, The control valve block (6) is equipped with a left support leg (9) solenoid valve group, a right support leg (11) solenoid valve group, a front right floating solenoid valve group and a rear left floating solenoid valve group. The control valve block (6) is electrically connected to the left support leg cylinder (8) through the left support leg (9) solenoid valve group. The control valve block (6) is electrically connected to the right support leg cylinder (10) through the right support leg (11) solenoid valve group. The control valve block (6) is electrically connected to the front right floating cylinder (12) through the front right floating solenoid valve group. The control valve block (6) is electrically connected to the rear left floating cylinder (7) through the rear left floating solenoid valve group.

3. A floating leveling electric control system according to claim 2, characterized in that, The control valve block (6) is also equipped with a switching solenoid valve. The control valve block (6) is electrically connected to the front right floating cylinder (12) and the rear left floating cylinder (7) respectively through the switching solenoid valve.

4. A floating levelling electric control system according to claim 1 or 2 or 3, characterised in that, The vehicle body includes a body, a front left wheel, a front right wheel, a rear left wheel, and a rear right wheel. The front left wheel and the front right wheel are respectively installed on the left and right sides of the front end of the body. The rear left wheel and the rear right wheel are respectively installed on the left and right sides of the rear end of the body. The front right floating cylinder (12) is installed at the front end of the body and close to the position of the front right wheel. The rear left floating cylinder (7) is installed at the rear end of the body and close to the position of the rear left wheel. The power controller (1), controller (5), control valve block (6), and tilt sensor (4) are all installed at the middle position of the front end of the body.

5. A floating leveling electric control system according to claim 4, characterized in that, A left support leg (9) is provided at the front end of the vehicle body and in front of the front left wheel. The left support leg (9) is rotatably connected to the vehicle body. The left support leg cylinder (8) is installed between the left support leg (9) and the vehicle body. A right support leg (11) is provided at the front end of the vehicle body and in front of the front right wheel. The right support leg (11) is rotatably connected to the vehicle body. The right support leg cylinder (10) is installed between the right support leg (11) and the vehicle body.

6. A floating leveling electric control system according to claim 4, wherein, The vehicle body is equipped with a control room, and the left thumb switch (2), right thumb switch (3) and left and right tilt switch (13) are all installed in the control room and electrically connected to the controller (5) on the vehicle body through wires.

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