CN110792338A

CN110792338A - Cab door opening and closing control system and excavator

Info

Publication number: CN110792338A
Application number: CN201911151773.9A
Authority: CN
Inventors: 张晴朗; 闫静; 刘鹏飞
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-02-14

Abstract

The invention provides a cab door switch control system and an excavator, and relates to the technical field of excavators, wherein a handrail box arranged on the excavator comprises a control switch, a controller and a door lock driving device; the control switch is arranged on the control panel of the armrest box and used for sending a control instruction to the controller under the condition that the control switch is triggered; the controller is connected with the control switch and used for receiving the control instruction and sending a control signal to the door lock driving device; the door lock driving device is connected with the controller and used for driving the cab door of the excavator to be opened or closed according to the control signal, the original mechanical door opening and closing mode is replaced, the cab interior space is saved, and the cab door can be closed and opened under the condition that an excavator driver does not need to leave a cab seat.

Description

Cab door opening and closing control system and excavator

Technical Field

The invention relates to the technical field of excavators, in particular to a cab door switch control system and an excavator.

Background

The excavator is a vehicle device which is commonly used in industrial production. The cab of current excavators is generally equipped with a driver seat on which a driver sits and a handle bar armrest. Wherein the driver closes the cab door by pulling the pull rod armrest. However, due to the structural limitation of the excavator, the distance between the driver seat and the pull rod armrest is relatively long, and if the driver needs to close the driver door, the driver needs to stand on the driver seat to reach out to pull the pull rod armrest, which is inconvenient for closing the driver door. In addition, the cab door takes up space in the cab after the handle is closed. When the driver moves in the cab, the driver is easy to touch the door closing handle by mistake.

Disclosure of Invention

The invention aims to provide a cab door opening and closing control system and an excavator, which replace the original mechanical door opening and closing mode, save the space in a cab and realize the opening and closing of the cab door under the condition that an excavator driver does not need to leave a cab seat.

In a first aspect, an embodiment provides a cab door switch control system, which is installed in a console box of an excavator and comprises a control switch, a controller and a door lock driving device;

the control switch is arranged on the control panel of the armrest box and used for sending a control instruction to the controller under the condition that the control switch is triggered;

the controller is connected with the control switch and used for receiving the control instruction and sending a control signal to the door lock driving device;

and the door lock driving device is connected with the controller and used for driving the cab door of the excavator to be opened or closed according to the control signal.

In an alternative embodiment, the control switch is further configured to send a first control command to the controller in response to a door closing operation of the driver.

In an optional embodiment, the controller is further configured to send a first control signal to the door lock driving device according to the first control instruction, and control the door lock driving device to close the cab door.

In an alternative embodiment, the control switch is further configured to send a second control command to the controller in response to a door opening operation by the driver.

In an optional embodiment, the controller is further configured to send a second control signal to the door lock driving device according to the second control instruction, and control the door lock driving device to open the cab door.

In an alternative embodiment, the door lock actuation device comprises a hydraulic actuation device.

In an alternative embodiment, the door lock actuation device further comprises a contact relay power actuation device.

In an alternative embodiment, the control panel comprises a touch screen for inputting biological information, a multi-gear control knob, a control button group and a sound collection device.

In an alternative embodiment, the control switch includes one or more of a control knob, a group of control buttons, a voice control switch, and a biometric information control switch.

In a second aspect, embodiments provide an excavator comprising an excavator body and a cab door opening and closing control system as claimed in any one of the preceding embodiments.

The embodiment of the invention provides a cab door opening and closing control system and an excavator, which save the operation space of a driver in a cab by canceling a door closing handrail in the cab, replace the original mechanical door opening and closing mode by adopting a control switch and a controller on a handrail box to control a door lock driving device, and realize the opening and closing of the cab door under the condition that the driver of the excavator does not need to leave a cab seat.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of a conventional excavator according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cab door opening and closing control system according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an armrest box in a cab door opening and closing control system according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an excavator according to an embodiment of the present invention.

Icon: 100-a pull rod armrest; 200-a driving seat; 300-a control switch; 400-a controller; 500-door lock drive means; 600-a control panel; 601-a sound collection device; 602-group of control buttons; 603-a touch screen; 604-a display screen; 605-control knob.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

At present, when an excavator is designed with a door-closing armrest, a mechanical structure, such as a pull rod armrest and the like, is generally adopted and is arranged in an excavator cab, as shown in fig. 1. In the above situation, the requirement of the driver for opening and closing the door cannot be met, the pull rod armrest 100 is far away from the driving seat 200, and the driver needs to stand or move his body to pull the pull rod armrest 100 to close or open the door.

Based on the above, the cab door opening and closing control system and the excavator provided by the embodiment of the invention replace the original mechanical door opening and closing mode, so that the space in the cab is saved, and the cab door can be closed and opened under the condition that an excavator driver does not need to leave a cab seat.

The following is a detailed description by way of example.

Fig. 2 is a schematic structural diagram of a cab door opening and closing control system according to an embodiment of the present invention.

Referring to fig. 2, an embodiment of the present invention provides a cab door switch control system, which is installed in a console box of an excavator, and includes a control switch 300, a controller 400, and a door lock driving device 500;

the control switch 300 is arranged on a control panel of the armrest box and used for sending a control instruction to the controller 400 under the condition that the control switch 300 is triggered;

the controller 400 is connected to the control switch 300, and is configured to receive the control instruction and send a control signal to the door lock driving device 500;

the door lock driving device 500 is connected to the controller 400, and is configured to drive the cab door of the excavator to open or close according to the control signal.

In a preferred embodiment of practical application, the operation space of a driver in the cab is saved by eliminating the door-closing armrest in the cab, and the original mechanical door opening and closing mode is replaced by adopting the control switch 300 and the controller 400 on the armrest box to control the door lock driving device 500, so that the driver can close and open the cab door without leaving the cab seat.

It should be noted that the armrest box of the excavator is disposed in the cab, and a general installation position may be determined according to actual conditions, but the armrest box is disposed around a preset distance range of the driver, which can be known by those skilled in the art.

In an alternative embodiment, the control switch 300 is further configured to send a first control command to the controller 400 in response to a door closing operation of the driver.

In an alternative embodiment, the controller 400 is further configured to send a first control signal to the door lock driving device 500 according to the first control instruction, and control the door lock driving device 500 to close the cab door.

Here, when the driver has a door request, the control switch 300 is pressed by hand, and the control switch 300 is activated. The control switch 300 transmits a first control command (door closing signal) to the controller 400, the controller 400 controls the power on of the door lock driving device 500 according to a preset door closing program, and the door lock driving device 500 drives the cab door to be automatically closed after the power on.

In an alternative embodiment, the control switch 300 is further configured to send a second control command to the controller 400 in response to a door opening operation by the driver.

In an alternative embodiment, the controller 400 is further configured to send a second control signal to the door lock driving device 500 according to the second control instruction, and control the door lock driving device 500 to open the cab door.

Here, when the driver has a door opening request, the control switch 300 is pressed by hand to trigger the control switch 300. The control switch 300 transmits a first control command (door closing signal) to the controller 400, the controller 400 controls the power on of the door lock driving device 500 according to a preset door opening program, and the door lock driving device 500 drives the cab door to be opened autonomously after the power on.

As a possible preferred embodiment, the door lock actuation device 500 comprises a hydraulic actuation device.

As a possible preferred embodiment, the door lock actuating device 500 further comprises a contact relay power actuating device.

In a practical application scenario of the excavator, the door lock driving device 500 may include a hydraulic drive and an electric drive, considering that the excavator may have different work requirements and different work environments.

If the door lock driving device 500 is driven by hydraulic pressure, a device for hydraulic assistance is added at the armrest box, so that the door lock driving device 500 can drive the cab door to open or close by hydraulic power.

If the door lock driving device 500 is electrically driven, the door lock driving device 500 may include a relay, and the opening and closing of the cab door of the excavator may be achieved through the cooperation between the relay and the contact.

In an alternative embodiment, as shown in fig. 3, the control panel 600 includes a touch screen 603 for inputting biological information, a multi-position control knob 605, a control button group 602, and a sound collection device 601.

In an alternative embodiment, the control switch 300 includes one or more of a control knob 605, a set of control buttons 602, a voice control switch 300, and a biometric information control switch 300.

Here, the sound collection device 601 may be configured to collect the sound of the driver, and further obtain the voice instruction of the driver, that is, the control instruction may be presented in a form of voice; the control button group 602 includes three buttons a, b, and c, which can be respectively expressed as a button a for opening the door, b for closing the door, and c for powering down, and the driver can press the corresponding button to trigger the corresponding control instruction to implement the corresponding control function; the control knob 605 may include a plurality of gears, so that the driver can control the corresponding functions by rotating the control knob 605 to the corresponding gear, for example, when the control knob 605 is rotated to the 1 gear, the controller 400 controls the door of the cab to be opened, the control knob 605 is rotated to the 2 gear, the controller 400 controls the door of the cab to be closed, the control knob 605 is rotated to the 3 gear, and the controller 400 powers down the control knob 605; the driver can recognize and verify the biological information through the touch screen 603, the fingerprint recognition verification mode in fig. 3 is only an example, and other biological recognition modes can be adjusted according to the actual situation, such as the biological information of palm veins, iris, and the like.

In addition, the console panel 600 of the console box further includes a display screen 604 for displaying the current selected functional status, for example, the door is closed according to the control command of the driver, and the door closed of the cab is displayed on the display screen 604.

Further, as shown in fig. 4, an embodiment of the present invention provides an excavator, which includes an excavator main body and the cab door opening and closing control system according to any one of the foregoing embodiments.

In practical application, in the preferred embodiment, the excavator adopting the cab door opening and closing control system does not need to be provided with a pull rod armrest in the cab, so that the operation space of a driver in the cab is saved, meanwhile, the driver sits on the cab seat 200, the opening or closing of the cab door of the excavator can be controlled, the operator does not need to stand up, and the operator of the excavator can conveniently open and close the cab door.

It should be noted that the embodiment of the present invention is not limited to an excavator, but may also be applied to other large vehicles, specifically, a large vehicle with a relatively far pull rod armrest and a relatively far driving seat, and may be applied according to actual situations.

The excavator provided by the embodiment of the invention has the same technical characteristics as the cab door opening and closing control system provided by the embodiment, so that the same technical problems can be solved, and the same technical effects are achieved.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.

Claims

1. A cab door opening and closing control system is characterized by being installed on a handrail box of an excavator; the cab door switch control system comprises a control switch, a controller and a door lock driving device;

2. The cab door switch control system of claim 1, wherein the control switch is further configured to send a first control command to the controller in response to a door closing operation by a driver.

3. The cab door opening and closing control system according to claim 2, wherein the controller is further configured to send a first control signal to the door lock driving device according to the first control instruction, and control the door lock driving device to close the cab door.

4. The cab door switch control system of claim 1, wherein the control switch is further configured to send a second control command to the controller in response to a door opening operation by the driver.

5. The cab door opening and closing control system according to claim 4, wherein the controller is further configured to send a second control signal to the door lock driving device according to the second control instruction, and control the door lock driving device to open the cab door.

6. The cab door switch control system of claim 1, wherein the door lock driving device comprises a hydraulic driving apparatus.

7. The cab door switch control system of claim 1, wherein the door lock driving apparatus further comprises a contact relay power driving device.

8. The cab door switch control system of claim 1, wherein the manipulation panel comprises a touch screen for inputting biological information, a multi-position control knob, a control button group, and a sound collection device.

9. The cab door switch control system of claim 8, wherein the control switches include one or more of a control knob, a set of control buttons, a voice control switch, and a biometric control switch.

10. An excavator comprising an excavator main body and a cab door opening and closing control system as claimed in any one of claims 1 to 9.