Escalator device of excavator and control method

Abstract

A sliding rail is arranged on one side of an excavator platform, an escalator is arranged on the inner side of the sliding rail, the escalator comprises a sliding rod, the sliding rod is slidably connected with the sliding rail, the lower end of the sliding rod is connected with a pedal through a pressure sensor, a handle is arranged below the pedal, and a handrail is arranged on the side face of the sliding rod. By means of the lifting ladder provided with the pedals, the pulling strength of operators is greatly reduced, when the operators climb on the excavator, climb on the excavator and get off the excavator, the operators ascend and descend along with the lifting ladder, the time for opening the ladder stand is saved, and the efficiency is improved; when an operator forgets the state of the escalator to start the excavator carelessly and make actions, an alarm can be quickly given out and corresponding actions can be made, so that collision between the escalator and the excavator is avoided, and potential safety hazards can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of excavators, in particular to an excavator automatic escalator device and a control method. Background Art

[0002] With the development and progress of mining technology, more and more users of mining projects choose to use mining excavators. The tonnage and overall dimensions of mining excavators are large, which makes it inconvenient for operators to get on and off. The existing ones usually use a lifting ladder to get on and off. The ladder requires the use of hands and feet, which increases the labor intensity of the operators. In addition, the existing lifting ladder needs to be controlled by a remote control or an operating button. The operator can only use the ladder when the ladder is fully opened, which is inefficient. In addition, the operator is prone to forget whether the ladder is folded when operating the excavator. If the ladder is not folded, the ladder will collide with the crawler part of the excavator during the rotation action, causing damage to the ladder or the excavator, and there are certain safety hazards. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an excavator escalator device and a control method to solve at least one of the above technical problems in view of the deficiencies in the prior art.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: an excavator escalator device and control method, including an excavator platform, a main controller, and an oil pump. A slide rail is arranged on one side of the excavator platform, and an escalator is arranged on the inner side of the slide rail. The escalator includes a slide bar, and the slide bar is slidably connected to the slide rail. The lower end of the slide bar is connected to a pedal through a pressure sensor, and a handle is arranged below the pedal. A handrail is arranged on the side of the slide bar, and a hydraulic winch is arranged on the top of the slide rail. The hydraulic winch is connected to the slide bar transmission rod through a rope, and the oil pump is connected to the oil tank. The oil pump is connected to the hydraulic winch through the hydraulic winch solenoid valve, an upper proximity switch is provided at the upper end of the slide rail, and a lower proximity switch is provided at the lower end of the slide rail, and the upper proximity switch and the lower proximity switch are both provided corresponding to the upper end of the slide bar, and the main controller is electrically connected to the pressure sensor, the oil pump motor of the oil pump, the hydraulic winch solenoid valve, the upper proximity switch, and the lower proximity switch, and the main controller is electrically connected to an alarm device, and the alarm device is provided in the cab of the excavator, the main controller is electrically connected to the excavator controller, and the excavator controller is electrically connected to the main valve solenoid valve.

[0005] Furthermore, the main controller is electrically connected to a control button, and the control button is arranged on one side of the slide rail.

[0006] Furthermore, the main controller is electrically connected to a signal receiving device, and the signal receiving device is connected to a remote controller via a radio signal.

[0007] Furthermore, a power cylinder is arranged below the slide rail, the output shaft of the hydraulic cylinder is arranged corresponding to the slide rod, and the power cylinder is electrically connected to the main controller.

[0008] Further, the escalator descending method includes: When the user applies external force to the pedal, the pressure sensor transmits the electrical signal of the force to the main controller. When the force is greater than the set value, the main controller senses that the state of the upper proximity switch is in the reset state. The excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor, and the hydraulic winch solenoid valve controls the direction of the oil circuit to reverse the hydraulic winch and lower the escalator. When the lower proximity switch is reset, it transmits an electrical signal to the main controller, and the main controller controls the oil pump motor to stop running.

[0009] Escalator ascent methods include: The user applies external force to the pedal, and the pressure sensor transmits the electrical signal of the force to the main controller. When the force is greater than the set value, the main controller senses that the state of the lower proximity switch is in the reset state. The excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor, and the hydraulic winch solenoid valve controls the direction of the oil circuit to make the hydraulic winch rotate forward and the escalator rise. When the upper proximity switch is reset, it transmits an electrical signal to the main controller, and the main controller controls the oil pump motor to stop running.

[0010] Furthermore, the method in which the user controls the escalator to descend by pressing a control button or issuing a descending command via a remote controller includes: The user issues a descending command, the main controller receives the command, the main controller senses that the state of the lower proximity switch is not reset, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller, the main controller controls the operation of the oil pump motor, the hydraulic winch solenoid valve controls the direction of the oil circuit, reverses the hydraulic winch, and the escalator descends. When the lower proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop running.

[0011] The method in which the user controls the escalator to ascend by pressing a control button or issuing an ascending command via a remote controller includes: The user issues an ascending command, the main controller receives the command, the main controller senses that the state of the upper proximity switch is not reset, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller, the main controller controls the operation of the oil pump motor, the hydraulic winch solenoid valve controls the direction of the oil circuit, so that the hydraulic winch rotates forward and the escalator rises. When the upper proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop running.

[0012] Furthermore, the method for stopping the escalator from ascending and descending when the excavator action is triggered includes: When the escalator is in the process of rising or falling, the excavator is triggered, the main valve solenoid valve sends an electrical signal to the excavator controller, the excavator controller transmits the electrical signal to the main controller, the main controller controls the oil pump motor to stop running, and controls the alarm device to sound an alarm.

[0013] Further, the escalator locking method includes: When the escalator lifting command ends, the main controller controls the power cylinder to lock the slide bar, and when the escalator lifting command starts, the main controller controls the power cylinder to release the slide bar.

[0014] Furthermore, the method for automatic recovery of the escalator includes: The main controller senses the state of the lower proximity switch. When the reset time of the lower proximity switch exceeds the set time, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor. The hydraulic winch solenoid valve controls the direction of the oil circuit to make the hydraulic winch rotate forward and the escalator rise. When the upper proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop running.

[0015] Furthermore, the method for automatically recovering the escalator when the excavator is in motion includes: The excavator triggers the action, the main valve solenoid valve sends an electrical signal to the excavator controller, the excavator controller transmits the electrical signal to the main controller, the main controller senses that the lower proximity switch is in the reset state, the main control controls the alarm device to sound an alarm to remind the operator, after the operator stops the action, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller, the main controller controls the oil pump motor to run, the hydraulic winch solenoid valve controls the direction of the oil circuit, so that the hydraulic winch rotates forward and the escalator rises, when the upper proximity switch is reset, it transmits an electrical signal to the main controller, the main control controls the oil pump motor to stop running.

[0016] The beneficial effects of the present invention are: The present invention greatly reduces the pulling strength of the operator by providing a lifting escalator with pedals. When boarding an excavator or getting on or off a vehicle, the present invention rises and falls with the lifting escalator, which saves the time of opening the ladder and improves efficiency. The present invention is also provided with an alarm device, which can quickly sound an alarm and take corresponding actions when the operator forgets the escalator status and accidentally starts the excavator and takes action, so as to avoid the escalator from colliding with the excavator and avoid safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the escalator structure of the present invention.

[0019] Figure 3The figure is a schematic diagram of the escalator descent control process of the present invention.

[0020] Figure 4 The figure is a schematic diagram of the process of controlling the escalator to ascend according to the present invention.

[0021] Figure 5 This is a schematic diagram of the process of controlling the escalator to descend using a control button or a remote controller in the present invention.

[0022] Figure 6 This is a schematic diagram of the process of controlling the escalator to ascend using a control button or a remote controller according to the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Slide rail 1; escalator 2; slide bar 3; pressure sensor 4; pedal 5; handle 6; handrail 7; excavator platform 8. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with specific embodiments, and it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

[0025] Example 1: See Figures 1 to 6It is a schematic diagram of each structure of the present invention, including an excavator platform 8, a main controller, and an oil pump. A slide rail 1 is arranged on one side of the excavator platform 8, and an escalator 2 is arranged on the inner side of the slide rail 1. The escalator 2 moves up and down guided by the slide rail 1. The escalator 2 includes a slide bar 3, and the slide bar 3 is slidably connected to the slide rail 1. The lower end of the slide bar 3 is connected to a pedal 5 through a pressure sensor 4. The pressure sensor 4 senses the pressure on the pedal 5. The pedal 5 is used for standing. A handle 6 is arranged under the pedal 5 to facilitate the operator to directly pull down the device and save the trouble of finding a remote control. A handrail 7 is arranged on the side of the slide bar 3, where the operator holds his hand to avoid the operator standing unsteadily. A hydraulic winch is arranged on the top of the slide rail 1. The hydraulic winch is connected to the transmission rod of the slide bar 3 through a rope, and the hydraulic winch pulls the slide bar 3 through the rope The oil pump is connected to the oil tank, and the oil pump is connected to the hydraulic winch through the hydraulic winch solenoid valve. The hydraulic winch solenoid valve is used to change the direction of the oil circuit so that the hydraulic winch can switch between forward and reverse rotation. An upper proximity switch is provided at the upper end of the slide rail 1, and a lower proximity switch is provided at the lower end of the slide rail 1. The upper proximity switch and the lower proximity switch are both provided corresponding to the upper end of the slide bar 3 to sense whether the slide bar 3 is at the highest point or the lowest point. The main controller is electrically connected to the pressure sensor 4, the oil pump motor of the oil pump, the hydraulic winch solenoid valve, the upper proximity switch, and the lower proximity switch. The main controller is electrically connected to an alarm device, which is provided in the cab of the excavator to remind the driver to respond quickly. The main controller is electrically connected to the excavator controller, and the excavator controller is electrically connected to the main valve solenoid valve.

[0026] Specifically, the main controller is electrically connected to a control button, which is arranged on one side of the slide rail 1 , and the lifting and lowering of the escalator 2 is controlled by the control button.

[0027] Specifically, the main controller is electrically connected to a signal receiving device, and the signal receiving device is connected to a remote controller via a radio signal, and the lifting and lowering of the escalator 2 is controlled by the remote controller.

[0028] Specifically, a power cylinder is arranged below the slide rail 1, the output shaft of the hydraulic cylinder is arranged corresponding to the slide rod 3, the power cylinder is electrically connected to the main controller, and the slide rod 3 is locked by the power cylinder to prevent the slide rod 3 from sliding.

[0029] Specifically, when the operator gets off the vehicle, the operator stands on the pedal 5, and the pressure sensor 4 transmits the electrical signal of the force to the main controller. When the force is greater than 20KG, the main controller senses that the state of the upper proximity switch is in the reset state, and the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor, and the hydraulic winch solenoid valve controls the direction of the oil circuit to reverse the hydraulic winch, and the escalator 2 descends. When the lower proximity switch is reset, it transmits an electrical signal to the main controller, and the main controller controls the oil pump motor to stop running.

[0030] When the operator stands on the ground to lower the escalator 2, the operator pulls the handle 6, and the pressure sensor 4 transmits the electrical signal of the force to the main controller. When the force is greater than 20KG, the main controller senses that the state of the upper proximity switch is in the reset state, and the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor, and the hydraulic winch solenoid valve controls the direction of the oil circuit to reverse the hydraulic winch, and the escalator 2 descends. When the lower proximity switch is reset, it transmits an electrical signal to the main controller, and the main controller controls the oil pump motor to stop running.

[0031] The method for ascending the escalator 2 includes: the operator stands on the pedal 5, the pressure sensor 4 transmits the electrical signal of the force to the main controller, when the force is greater than 20KG, the main controller senses that the state of the lower proximity switch is in the reset state, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller, the main controller controls the operation of the oil pump motor, the hydraulic winch solenoid valve controls the direction of the oil circuit, so that the hydraulic winch rotates forward, the escalator 2 rises, and when the upper proximity switch is reset, it transmits an electrical signal to the main controller, the main controller controls the oil pump motor to stop running, and the operator walks from the pedal 5 to the excavator platform 8.

[0032] Specifically, when the user controls the escalator 2 to descend by pressing the control button or issuing a descent command on the remote control, the operator presses the descent button on the control button or the descent key on the remote control, the main controller receives the command, the main controller senses that the state of the lower proximity switch is in an unreset state, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller, the main controller controls the operation of the oil pump motor, the hydraulic winch solenoid valve controls the direction of the oil circuit, reverses the hydraulic winch, and the escalator 2 descends. When the lower proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop running.

[0033] When the user controls the escalator 2 to rise by pressing the control button or issuing an ascending command on the remote control, the operator presses the ascending button on the control button or the ascending key on the remote control, the main controller receives the command, the main controller senses that the state of the upper proximity switch is in an unreset state, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller, the main controller controls the operation of the oil pump motor, the hydraulic winch solenoid valve controls the direction of the oil circuit, so that the hydraulic winch rotates forward, and the escalator 2 rises. When the upper proximity switch is reset, an electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop running.

[0034] Specifically, when the excavator action is triggered, the main controller stops the escalator 2 from rising or falling. When the escalator 2 is in the process of rising or falling, the operator drives the excavator to trigger the action, the main valve solenoid valve sends an electrical signal to the excavator controller, the excavator controller transmits the electrical signal to the main controller, the main controller controls the oil pump motor to stop running, and controls the alarm device to sound an alarm, and the driver immediately responds and stops the action.

[0035] Specifically, when the power cylinder locks the escalator 2, when the escalator 2 lifting command ends, the main controller controls the power cylinder to lock the slide bar 3, and when the escalator 2 lifting command starts, the main controller controls the power cylinder to release the slide bar 3.

[0036] Specifically, the escalator 2 is automatically retracted when not used for a long time. The main controller senses the state of the lower proximity switch. If the reset time of the lower proximity switch exceeds 5 minutes, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor, and the hydraulic winch solenoid valve controls the direction of the oil circuit to make the hydraulic winch rotate forward and the escalator 2 rises. When the upper proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop running.

[0037] Specifically, when the excavator is in motion, the escalator 2 is automatically retracted, the driver drives the excavator to trigger the action, the main valve solenoid valve sends an electrical signal to the excavator controller, the excavator controller transmits the electrical signal to the main controller, the main controller senses that the lower proximity switch is in a reset state, and the main control controls the alarm device to sound an alarm to remind the operator. After the operator stops the action, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller, the main controller controls the oil pump motor to run, the hydraulic winch solenoid valve controls the direction of the oil circuit, so that the hydraulic winch rotates forward, and the escalator 2 rises. When the upper proximity switch is reset, it transmits an electrical signal to the main controller, and the main control controls the oil pump motor to stop running.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An escalator device for an excavator, characterized in that: The invention comprises an excavator platform (8), a main controller, and an oil pump. A slide rail (1) is arranged on one side of the excavator platform (8). An escalator (2) is arranged on the inner side of the slide rail (1). The escalator (2) comprises a slide bar (3). The slide bar (3) is slidably connected to the slide rail (1). The lower end of the slide bar (3) is connected to a pedal (5) via a pressure sensor (4). A handle (6) is arranged below the pedal (5). A handrail (7) is arranged on the side of the slide bar (3). A hydraulic winch is arranged on the top of the slide rail (1). The hydraulic winch is connected to a transmission rod of the slide bar (3) via a rope. The oil pump is connected to an oil tank. The oil pump is connected to the hydraulic winch through a hydraulic winch solenoid valve, an upper proximity switch is provided at the upper end of the slide rail (1), and a lower proximity switch is provided at the lower end of the slide rail (1), and the upper proximity switch and the lower proximity switch are both provided corresponding to the upper end of the slide bar (3), and the main controller is electrically connected to the pressure sensor (4), the oil pump motor of the oil pump, the hydraulic winch solenoid valve, the upper proximity switch, and the lower proximity switch, and the main controller is electrically connected to an alarm device, and the alarm device is provided in the cab of the excavator, the main controller is electrically connected to the excavator controller, and the excavator controller is electrically connected to the main valve solenoid valve.

2. According to claim 1, an automatic escalator device for an excavator is characterized in that: The main controller is electrically connected to a control button, and the control button is arranged on one side of the slide rail (1).

3. The excavator escalator device according to claim 1, characterized in that: The main controller is electrically connected to a signal receiving device, and the signal receiving device is connected to a remote controller via a radio signal.

4. The excavator escalator device according to claim 1, characterized in that: A power cylinder is arranged below the slide rail (1), the output shaft of the hydraulic cylinder is arranged corresponding to the slide rod (3), and the power cylinder is electrically connected to a main controller.

5. A control method for an excavator escalator device, characterized in that: The escalator (2) descending method includes: The user applies external force to the pedal (5), and the pressure sensor (4) transmits an electrical signal of the force to the main controller. When the force is greater than the set value, the main controller senses that the state of the upper proximity switch is in the reset state. The excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor, and the hydraulic winch solenoid valve controls the direction of the oil circuit to reverse the hydraulic winch and lower the escalator (2). When the lower proximity switch is reset, the electrical signal is transmitted to the main controller, and the main controller controls the operation of the oil pump motor. The escalator (2) ascending method includes: The user applies external force to the pedal (5), and the pressure sensor (4) transmits an electrical signal of the force to the main controller. When the force is greater than the set value, the main controller senses that the state of the lower proximity switch is in a reset state, and the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the operation of the oil pump motor, and the hydraulic winch solenoid valve controls the direction of the oil circuit to make the hydraulic winch rotate forward, and the escalator (2) rises. When the upper proximity switch is reset, the electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop running.

6. The control method of an excavator escalator device according to claim 5, characterized in that: The method in which the user controls the escalator (2) to descend by pressing a control button or issuing a descending command via a remote controller includes: The user issues a descending command, and the main controller receives the command. The main controller senses that the state of the lower proximity switch is not reset. The excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the oil pump motor to operate, and the hydraulic winch solenoid valve controls the direction of the oil circuit to reverse the hydraulic winch, so that the escalator (2) descends. When the lower proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop operating. The method in which a user controls the escalator (2) to ascend by pressing a control button or issuing an ascending command via a remote controller comprises: The user issues an ascending command, and the main controller receives the command. The main controller senses that the state of the upper proximity switch is not reset. The excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the oil pump motor to operate, and the hydraulic winch solenoid valve controls the direction of the oil circuit to make the hydraulic winch rotate forward, and the escalator (2) rises. When the upper proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop operating.

7. The control method of an excavator escalator device according to claim 5 or 6, characterized in that: The method for stopping the escalator (2) from ascending or descending when the excavator action is triggered comprises: When the escalator (2) is in the process of being raised or lowered, the excavator is triggered to move, the main valve solenoid valve sends an electrical signal to the excavator controller, the excavator controller transmits the electrical signal to the main controller, the main controller controls the oil pump motor to stop running, and controls the alarm device to sound an alarm.

8. The control method of an excavator escalator device according to claim 5 or 6, characterized in that: The method of locking the escalator (2) includes: When the escalator (2) lifting command ends, the main controller controls the power cylinder to lock the slide bar (3), and when the escalator (2) lifting command starts, the main controller controls the power cylinder to release the slide bar (3).

9. The control method of an excavator escalator device according to claim 5 or 6, characterized in that: The method for automatically recovering the escalator (2) comprises: The main controller senses the state of the lower proximity switch. When the reset time of the lower proximity switch exceeds the set time, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the oil pump motor to operate. The hydraulic winch solenoid valve controls the direction of the oil circuit to make the hydraulic winch rotate forward and the escalator (2) rise. When the upper proximity switch is reset, an electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop operating.

10. The control method of an excavator escalator device according to claim 5 or 6, characterized in that: The method for automatically retracting the ladder (2) when the excavator is in motion includes: When the excavator is triggered, the main valve solenoid valve sends an electrical signal to the excavator controller, and the excavator controller transmits the electrical signal to the main controller. The main controller senses that the lower proximity switch is in the reset state, and the main control controls the alarm device to sound an alarm to remind the operator. After the operator stops the action, the excavator controller senses the state of the main valve solenoid valve and transmits it to the main controller. The main controller controls the oil pump motor to operate, and the hydraulic winch solenoid valve controls the direction of the oil circuit to make the hydraulic winch rotate forward, and the escalator (2) rises. When the upper proximity switch is reset, the electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

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