An excavator escalator device and control method

Abstract

The application discloses a kind of excavator escalator device and control method, one side of excavator platform is provided with slide rail, the inside of slide rail is provided with escalator, escalator includes slide bar, slide bar is slidably connected with slide rail, the lower end of slide bar is connected with pedal by pressure sensor, the lower of pedal is provided with handle, the side of slide bar is provided with handrail, the lifting escalator of the present application is provided with pedal, which greatly reduces the pulling strength of operator, when boarding the excavator, when boarding and getting off, with the lifting escalator, the time of climbing ladder is saved, and the efficiency is improved, the present application is also provided with alarm device, when the operator forgets the state of escalator and accidentally starts the excavator and makes action, alarm sound can be quickly sent and corresponding action is made, to avoid collision between escalator and excavator and avoid safety hazard.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of excavators, in particular to an automatic escalator device for excavators and a control method. BACKGROUND

[0002] With the development and progress of mining technology, more and more users of mine projects choose to use mine excavators. The tonnage and overall size of the mine excavator are relatively large, and it is relatively inconvenient for the operator to get on and off the vehicle. The existing method is to use a lifting type ladder to get on and off the vehicle. The ladder needs to be used with hands and feet, which increases the labor intensity of the operator. Moreover, the existing lifting type ladder needs to be controlled by using a remote controller or an operation button. The operator can use the ladder only after the ladder is fully opened, which is relatively inefficient. In addition, the operator is likely to forget to fold the ladder when operating the excavator. If the ladder is not folded, the ladder will collide with the track part of the excavator during the turning action of the excavator, causing damage to the ladder or the excavator, and there is a certain safety hazard. SUMMARY

[0003] The present application solves at least one of the above technical problems by providing an automatic escalator device for excavators and a control method.

[0004] The technical solution for solving the above technical problems is as follows: an automatic escalator device for excavators and a control method, comprising an excavator platform, a main controller, and an oil pump. One side of the excavator platform is provided with a sliding rail, and the inner side of the sliding rail is provided with an escalator. The escalator comprises a sliding rod, which is in sliding connection with the sliding rail. The lower end of the sliding rod is connected with a pedal through a pressure sensor. The lower side of the pedal is provided with a handle. The side surface of the sliding rod is provided with a handrail. The top of the sliding rail is provided with a hydraulic winch. The hydraulic winch is connected with the sliding rod through a rope and a transmission rod. The oil pump is in communication with an oil tank. The oil pump is in communication with the hydraulic winch through a hydraulic winch solenoid valve. The upper end of the sliding rail is provided with an upper proximity switch, and the lower end of the sliding rail is provided with a lower proximity switch. The upper proximity switch and the lower proximity switch are both arranged corresponding to the upper end of the sliding rod. The main controller is electrically connected with 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. The main controller is electrically connected with an alarm device, which is arranged in the cab of the excavator. The main controller is electrically connected with an excavator controller, and the excavator controller is electrically connected with a main valve solenoid valve.

[0005] Further, the main controller is electrically connected with a control button, which is arranged on one side of the sliding rail.

[0006] Further, the main controller is electrically connected with a signal receiving device, which is connected with a remote controller through a wireless signal.

[0007] Further, the lower part of the slide rail is provided with a power cylinder, the output shaft of the hydraulic cylinder is correspondingly arranged with a slide rod, and the power cylinder is electrically connected with the main controller.

[0008] Further, the escalator descending method comprises:

[0009] 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 electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch reverses, the escalator descends, and when the lower proximity switch resets, the electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0010] The escalator ascending method comprises:

[0011] 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 lower proximity switch is in the reset state, the excavator controller senses the state of the main valve electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch reverses, the escalator descends, and when the lower proximity switch resets, the electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0012] Further, the method for controlling the escalator to descend by the user pressing the control button and the remote controller to issue a descending instruction comprises:

[0013] The user issues a descending instruction, the main controller accepts the instruction, 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 electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch reverses, the escalator descends, and when the lower proximity switch resets, the electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0014] The method for controlling the escalator to ascend by the user pressing the control button and the remote controller to issue an ascending instruction comprises:

[0015] The user issues an ascending instruction, the main controller accepts the instruction, 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 electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch reverses, the escalator descends, and when the lower proximity switch resets, the electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0016] Further, the method for stopping the escalator from lifting when the excavator is triggered to act includes:

[0017] When the escalator is in the process of lifting, the excavator triggers the action, the main valve electromagnetic 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 emit an alarm sound.

[0018] Further, the method for stopping the escalator from lifting when the excavator is triggered to act includes:

[0019] When the escalator lifting instruction is over, the main controller controls the power cylinder to lock the slide rod, and when the escalator lifting instruction is started, the main controller controls the power cylinder to unlock the slide rod.

[0020] Further, the method for stopping the escalator from lifting when the excavator is triggered to act includes:

[0021] The main controller senses the state of the lower proximity switch, and when the reset time of the lower proximity switch exceeds the set time, the excavator controller senses the state of the main valve electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to run, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch rotates forward, and the escalator rises, and 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.

[0022] Further, the method for stopping the escalator from lifting when the excavator is triggered to act includes:

[0023] The excavator triggers the action, the main valve electromagnetic 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 emit an alarm sound to remind the operator, and after the operator stops the action, the excavator controller senses the state of the main valve electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to run, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch rotates forward, and the escalator rises, and 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.

[0024] The beneficial effects of the present application are:

[0025] The present application greatly reduces the pulling strength of the operator by setting the lifting escalator with the pedal, and the present application rises and falls with the lifting escalator when getting on and off the excavator, so that the time for opening the ladder is saved, and the efficiency is improved. The present application is also provided with an alarm device, which can quickly emit an alarm sound and make corresponding actions when the operator forgets the state of the escalator and accidentally starts the excavator and makes actions, so as to avoid the collision between the escalator and the excavator and the safety hazards. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 The present application is illustrated in the drawings.

[0027] Fig. 2 The schematic diagram of the escalator structure of the present application.

[0028] Fig. 3 The schematic diagram of the control of the descending flow of the escalator of the present application.

[0029] Fig. 4 The schematic diagram of the control of the ascending flow of the escalator of the present application.

[0030] Fig. 5 The schematic diagram of the control of the descending flow of the escalator of the present application using the control button or remote controller.

[0031] Fig. 6 The schematic diagram of the control of the ascending flow of the escalator of the present application using the control button or remote controller.

[0032] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0033] Slide rail 1; escalator 2; slide bar 3; pressure sensor 4; pedal 5; handle 6; handrail 7; excavator platform 8. DETAILED DESCRIPTION

[0034] The present application will be further described below in connection with specific embodiments, which should not be interpreted as limiting the scope of the present application. In addition, it should be understood that those skilled in the art can make various modifications or improvements to the present application after reading the content taught by the present application, and these equivalent forms also fall within the scope defined by the appended claims.

[0035] Example 1: Refer to Figs. 1 to 6It is each structure schematic diagram of the application, including excavator platform 8, main controller, oil pump, one side of excavator platform 8 is provided with slide rail 1, the inner side of slide rail 1 is provided with staircase 2, staircase 2 is guided to move up and down by slide rail 1, staircase 2 includes slide rod 3, slide rod 3 is slidably connected with slide rail 1, the lower end of slide rod 3 is connected with pedal 5 by pressure sensor 4, pressure sensor 4 senses the pressure on pedal 5, pedal 5 is used for standing, the lower of pedal 5 is provided with handle 6, it is convenient for operator to directly pull down the device, save the trouble of finding remote controller, the side of slide rod 3 is provided with handrail 7, the position of hand of operator, avoid operator to stand not steady, the top of slide rail 1 is provided with hydraulic winch, hydraulic winch is connected with slide rod 3 transmission rod by rope, hydraulic winch is pulled by rope slide rod 3, oil pump is communicated with oil tank, oil pump is communicated with hydraulic winch by hydraulic winch solenoid valve, hydraulic winch solenoid valve is used for the direction of oil passage to change, so that hydraulic winch can be switched between forward and reverse, the upper end of slide rail 1 is provided with upper proximity switch, the lower end of slide rail 1 is provided with lower proximity switch, upper proximity switch and lower proximity switch are correspondingly arranged at the upper end of slide rod 3, to sense whether slide rod 3 is at the highest point or the lowest point, main controller is electrically connected with pressure sensor 4, oil pump motor of oil pump, hydraulic winch solenoid valve, upper proximity switch, lower proximity switch, main controller is electrically connected with alarm device, alarm device is arranged in the cab of excavator, reminds the driver to make the driver quickly respond, main controller is electrically connected with excavator controller, excavator controller is electrically connected with main valve solenoid valve.

[0036] Specifically, the main controller is electrically connected with a control button, and the control button is arranged on one side of the slide rail 1.

[0037] Specifically, the main controller is electrically connected with a signal receiving device, and the signal receiving device is connected with a remote controller through radio signals.

[0038] Specifically, a power cylinder is arranged below the slide rail 1, an output shaft of the hydraulic cylinder is correspondingly arranged with the slide rod 3, and the power cylinder is electrically connected with the main controller.

[0039] Specifically, when the operator gets off, the operator stands on the pedal 5, and the pressure sensor 4 transmits the force signal 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, 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 passage, so that the hydraulic winch reverses, and the staircase 2 descends, when the lower proximity switch resets, the electric signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0040] When the operator stands on the ground to make the escalator 2 fall down, the operator pulls the handrail 6, and the pressure sensor 4 transmits the force-receiving electrical signal to the main controller. When the force is greater than 20 kg, 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 electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch reverses, and the escalator 2 falls down. When the lower proximity switch resets, an electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0041] The method for the escalator 2 to rise includes: the operator stands on the pedal 5, the pressure sensor 4 transmits the force-receiving electrical signal to the main controller, when the force is greater than 20 kg, 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 electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch rotates forward, the escalator 2 rises, and when the upper proximity switch resets, an electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating. The operator walks from the pedal 5 to the excavator platform 8.

[0042] Specifically, when the user controls the escalator 2 to fall down by pressing the control button and the remote controller to issue a falling instruction, the operator issues the falling button of the control button or the falling key on the remote controller, the main controller accepts the instruction, the main controller senses that the state of the lower proximity switch is in the non-reset state, the excavator controller senses the state of the main valve electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch reverses, and the escalator 2 falls down. When the lower proximity switch resets, an electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0043] When the user controls the escalator 2 to rise by pressing the control button and the remote controller to issue a rising instruction, the operator issues the rising button of the control button or the rising key on the remote controller, the main controller accepts the instruction, the main controller senses that the state of the upper proximity switch is in the non-reset state, the excavator controller senses the state of the main valve electromagnetic valve and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch electromagnetic valve controls the oil path direction, so that the hydraulic winch rotates forward, and the escalator 2 rises. When the upper proximity switch resets, an electrical signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0044] Specifically, when the excavator action triggers, the main controller stops the escalator 2 from rising and falling. When the escalator 2 is in the process of rising and falling, the operator drives the excavator to trigger the action, the main valve electromagnetic valve sends an electrical signal to the excavator controller, the excavator controller transmits an electrical signal to the main controller, the main controller controls the oil pump motor to stop operating, and controls the alarm device to issue an alarm sound, so that the driver immediately stops the action.

[0045] Specifically, when the power cylinder locks the escalator 2, the main controller controls the power cylinder to lock the slide rod 3 when the escalator 2 lifting instruction ends, and the main controller controls the power cylinder to release the slide rod 3 when the escalator 2 lifting instruction starts.

[0046] Specifically, the escalator 2 is automatically recovered for a long time, the main controller senses the state of the lower proximity switch, the reset time of the lower proximity switch is more than 5 minutes, the excavator controller senses the state of the main valve solenoid and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch solenoid controls the oil way direction, the hydraulic winch rotates forward, the escalator 2 rises, and when the upper proximity switch resets, an electric signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0047] Specifically, the escalator 2 is automatically recovered when the excavator operates, the driver drives the excavator to trigger the operation, the main valve solenoid sends an electric signal to the excavator controller, the excavator controller transmits an electric 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 issue an alarm sound to remind the operator, and after the operator stops the operation, the excavator controller senses the state of the main valve solenoid and transmits it to the main controller, the main controller controls the oil pump motor to operate, the hydraulic winch solenoid controls the oil way direction, the hydraulic winch rotates forward, the escalator 2 rises, and when the upper proximity switch resets, an electric signal is transmitted to the main controller, and the main control controls the oil pump motor to stop operating.

[0048] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A control method for an excavator escalator device, characterized in that: An automatic escalator device for an excavator comprises an excavator platform (8), a main controller, and an oil pump. A slide rail (1) is provided on one side of the excavator platform (8), an escalator (2) is provided on the inner side of the slide rail (1), and 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) through a pressure sensor (4), a handle (6) is provided below the pedal (5), a handrail (7) is provided on the side of the slide bar (3), a hydraulic winch is provided on the top of the slide rail (1), and the hydraulic winch is connected to the transmission rod of the slide bar (3) through a rope. The pump is connected to the oil tank, and the oil pump is connected to the hydraulic winch through the hydraulic winch solenoid valve. The upper end of the slide rail (1) is provided with an upper proximity switch, and the lower end of the slide rail (1) is provided with a lower proximity switch. The upper proximity switch and the lower proximity switch are both provided corresponding to the upper end of the slide bar (3). 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, 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; The escalator (2) descending method includes: The user applies external force to 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 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 oil pump motor to stop running. Escalator (2) ascending methods include: The user applies external force to 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 the set value, the main controller senses that the state of the lower 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, so that the hydraulic winch rotates 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.

2. The control method of an excavator escalator device according to claim 1, 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 control method of an excavator escalator device according to claim 2, 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 control method of an excavator escalator device according to claim 3, characterized in that: A power cylinder is provided below the slide rail (1), an output shaft of the power cylinder is provided corresponding to the slide rod (3), and the power cylinder is electrically connected to a main controller.

5. The control method of an excavator escalator device according to claim 4, characterized in that: The method for the user to control 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, 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, the hydraulic winch solenoid valve controls the oil circuit direction, the hydraulic winch reverses, and the escalator (2) descends. When the lower proximity switch is reset, the electrical signal is transmitted to the main controller, and the main controller controls the oil pump motor to stop operating. The method for the user to control the escalator (2) 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 oil pump motor to operate, the hydraulic winch solenoid valve controls the oil circuit direction, so that the hydraulic winch rotates 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 operating.

6. The control method of an excavator escalator device according to claim 5, characterized in that: The method for stopping the escalator (2) from ascending and descending when the excavator action is triggered includes: When the escalator (2) is in the process of ascending or descending, 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 controls the oil pump motor to stop running, and controls the alarm device to sound an alarm.

7. The control method of an excavator escalator device according to claim 6, characterized in that: Methods for locking the escalator (2) include: When the escalator (2) lifting instruction ends, the main controller controls the power cylinder to lock the slide bar (3), and when the escalator (2) lifting instruction starts, the main controller controls the power cylinder to release the slide bar (3).

8. The control method of an excavator escalator device according to claim 7, characterized in that: The method for automatically recovering the escalator (2) 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, 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 controller controls the oil pump motor to stop running.

9. The control method of an excavator escalator device according to claim 8, characterized in that: The method for automatically recovering the ladder (2) when the excavator is in motion includes: When the excavator triggers the action, 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 oil circuit direction, so that the hydraulic winch rotates 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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