阅读说明：本技术 挖掘机、推土铲自动升降方法及推土铲升降控制装置 (Excavator, automatic lifting method of blade and blade lifting control device ) 是由 项伟 徐乾秩 陈晨 于 2019-09-23 设计创作，主要内容包括：本发明涉及工程机械领域,具体而言,涉及挖掘机、推土铲自动升降方法及推土铲升降控制装置；该挖掘机包括脚踏、操纵杆、推土铲、检测组件、控制器和驱动件；脚踏用于控制挖掘机行走,操纵杆用于控制驱动件运动,以驱动推土铲运动,检测组件和驱动件均与控制器电连接；检测组件用于检测脚踏和操纵杆两者中的至少一个的运动状态；控制器被配置为根据脚踏和操纵杆的运动状态控制推土铲升降；本发明的挖掘机、推土铲自动升降方法及推土铲升降控制装置,能够避免手动误操作造成结构件的损伤,还能节省机手操作时间,提高工作效率。(The invention relates to the field of engineering machinery, in particular to an excavator, an automatic lifting method of a blade and a blade lifting control device; the excavator comprises pedals, an operating rod, a dozer blade, a detection assembly, a controller and a driving piece; the pedal is used for controlling the excavator to walk, the operating rod is used for controlling the driving piece to move so as to drive the dozer blade to move, and the detection assembly and the driving piece are electrically connected with the controller; the detection assembly is used for detecting the motion state of at least one of the pedal and the joystick; the controller is configured to control the blade to ascend and descend according to the motion states of the pedal and the operating rod; the excavator, the automatic lifting method of the blade and the lifting control device of the blade can avoid damage to structural members caused by manual misoperation, save the operation time of a manipulator and improve the working efficiency.)

1. An excavator, comprising: the device comprises a pedal (100), a control lever (200), a blade (330), a detection assembly (300), a controller (310) and a driving piece (320); the pedal (100) is used for controlling the excavator to walk, the operating rod (200) is used for controlling the driving piece (320) to move so as to drive the dozer blade (330) to move, and the detection assembly (300) and the driving piece (320) are both electrically connected with the controller (310);

the detection assembly (300) is used for detecting the motion state of at least one of the pedal (100) and the joystick (200);

the controller (310) is configured to control the blade (330) to ascend and descend according to the motion states of the pedals (100) and the joystick (200).

2. The excavator of claim 1, wherein the detection assembly (300) comprises a first sensor (301) and a second sensor (302), the first sensor (301) and the second sensor (302) each being electrically connected to the controller (310);

the first sensor (301) is used for detecting the motion state of the pedal (100), and when the first sensor (301) detects that the pedal (100) moves to a first preset position, the controller (310) controls the driving piece (320) to drive the dozer blade (330) to ascend;

the second sensor (302) is used for detecting the motion state of the operating rod (200), and when the second sensor (302) detects that the operating rod (200) moves to a second preset position, the controller (310) controls the driving piece (320) to drive the dozer blade (330) to descend.

3. The excavator of claim 1, wherein the controller (310) is particularly configured to control the drive member (320) to drive the blade (330) up to a set height.

4. The excavator of claim 3, further comprising a displacement sensor (341), the displacement sensor (341) being electrically connected to the controller (310) and adapted to detect a raised height of the blade (330);

the controller (310) is further configured to control the driving member (320) to stop driving the blade (330) to ascend when the displacement sensor (341) detects that the blade (330) ascends by the set height.

5. The excavating machine of claim 3 further comprising an adjustment assembly (343), the adjustment assembly (343) being electrically connected to the controller (310) for controlling the blade (330) to be raised to different set heights.

6. The excavator of claim 1 further comprising a pressure sensor (342), the pressure sensor (342) being electrically connected to the controller (310) for sensing pressure experienced by the drive member (320); when the controller (310) controls the driving piece (320) to drive the blade (330) to descend until receiving a third signal output by the pressure sensor (342), the driving piece (320) is controlled to stop driving the blade (330) to descend.

7. The excavation machine of any of claims 1-6, further comprising a mode adjustment assembly (344) electrically connected to the controller (310); the mode adjustment assembly (344) is used for controlling the controller (310) to be turned on or off so that the excavator is in an automatic mode or a manual mode.

8. A method for automatically lifting a blade for an excavator, the excavator comprising a foot pedal (100), a joystick (200), a blade (330) and a drive member (320); the pedal (100) is used for controlling the excavator to walk, the control rod (200) is used for controlling the driving part (320) to move so as to drive the dozer blade (330) to move, and the excavator is characterized by comprising:

acquiring a motion state of at least one of the pedals (100) and the joystick (200);

controlling the blade (330) to lift according to the motion states of the pedal (100) and the operating rod (200).

9. The method for automatically lifting a blade according to claim 8, wherein the step of controlling the blade (330) to lift and lower according to the motion states of the pedal (100) and the joystick (200) comprises: when the pedal (100) moves to a first preset position, controlling the dozer blade (330) to ascend; when the operating lever (200) moves to a second preset position, the blade (330) is controlled to descend.

10. A blade elevation control device for an excavator, the excavator comprising pedals (100), an operating lever (200), a blade (330) and a driving member (320); the pedal (100) is used for controlling the excavator to walk, the control rod (200) is used for controlling the driving part (320) to move so as to drive the dozer blade (330) to move, and the excavator is characterized by comprising:

an acquisition module (410) for acquiring a motion state of at least one of the foothold (100) and the joystick (200);

and the execution module (420) is used for controlling the lifting of the blade (330) according to the motion states of the pedal (100) and the operating rod (200).

Technical Field

The invention relates to the field of engineering machinery, in particular to an excavator, an automatic lifting method of a blade and a blade lifting control device.

Background

The excavator needs to put down the blade to support the ground under a plurality of working conditions to improve the stability during excavation, and needs to lift the blade to perform walking action during walking.

Disclosure of Invention

The invention aims to provide an excavator, an automatic lifting method of a blade and a blade lifting control device, which can avoid damage to structural members caused by manual misoperation, save the operation time of a manipulator and improve the working efficiency.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides an excavator, including: the device comprises a pedal, an operating rod, a dozer blade, a detection assembly, a controller and a driving piece; the pedal is used for controlling the excavator to walk, the operating rod is used for controlling the driving piece to move so as to drive the dozer blade to move, and the detection assembly and the driving piece are electrically connected with the controller; the detection assembly is used for detecting the motion state of at least one of the pedal and the joystick; the controller is configured to control the blade to be raised and lowered according to the motion state of the pedals and the joystick.

In an alternative embodiment, the detection assembly includes a first sensor and a second sensor, both of which are electrically connected to the controller; the first sensor is used for detecting the motion state of the pedal, and when the first sensor detects that the pedal moves to a first preset position, the controller controls the driving piece to drive the dozer blade to ascend; the second sensor is used for detecting the motion state of the operating rod, and when the second sensor detects that the operating rod moves to a second preset position, the controller controls the driving piece to drive the dozer blade to descend.

In an optional embodiment, the controller controls the driving member to drive the blade to ascend, and specifically includes: and controlling the driving piece to drive the dozer blade to ascend by a set height.

In an optional embodiment, the excavator further comprises a displacement sensor electrically connected with the controller and used for detecting the rising height of the blade; the controller is further configured to control the drive member to stop driving the blade to ascend when the displacement sensor detects that the blade ascends by the set height.

In an alternative embodiment, the excavator further comprises an adjustment assembly electrically connected to the controller for controlling the blade to be raised to different set heights.

In an alternative embodiment, the excavator further comprises a pressure sensor electrically connected with the controller for detecting the pressure applied to the driving member; and when the controller controls the driving piece to drive the blade to descend until the third signal output by the pressure sensor is received, the driving piece is controlled to stop driving the blade to descend.

In an alternative embodiment, the excavator further comprises a mode adjustment assembly electrically connected to the controller; the mode adjustment assembly is used for controlling the controller to be turned on or off so that the excavator is in an automatic mode or a manual mode.

In a second aspect, an embodiment of the present invention provides an automatic lifting method for a blade, which is used for an excavator, where the excavator includes: pedals, an operating lever, a dozer blade and a driving piece; the pedal is used for controlling the excavator to walk, and the operating rod is used for controlling the driving piece to move so as to drive the dozer blade to move; the automatic lifting method of the dozer blade comprises the following steps: acquiring the motion state of at least one of the pedals and the joystick; according to the motion state of the pedal and the control lever, the lifting of the dozer blade is controlled.

In an optional embodiment, the control of the lifting of the blade according to the motion states of the pedal and the operating lever specifically comprises: when the pedals move to a first preset position, the dozer blade is controlled to ascend; and when the operating lever moves to the second preset position, the control lever controls the dozer blade to descend.

In a third aspect, an embodiment of the present invention provides a device for controlling a lifting of a blade, which is used for an excavator, where the excavator includes a pedal, an operating lever, a blade, and a driving member; the pedal is used for controlling the excavator to walk, and the operating rod is used for controlling the driving piece to move so as to drive the dozer blade to move; this dozer blade lift control device includes: the acquisition module is used for acquiring the motion state of at least one of the pedal and the joystick; and the execution module is used for controlling the lifting of the dozer blade according to the motion states of the pedal and the operating lever.

The excavator provided by the embodiment of the invention has the beneficial effects that: the excavator provided by the embodiment of the invention can detect the motion state of at least one of the pedal and the operating lever by using the detection assembly, and judge the working state of the excavator according to the motion states of the pedal and the operating lever by using the controller so as to control the lifting of the dozer blade; for example: after the detection assembly detects the motion state of the pedals, the controller judges that the excavator is in a walking state, controls the dozer blade to ascend, avoids the dozer blade from supporting the ground, and avoids the dozer blade from interfering the walking of the excavator, or after the detection assembly detects the motion state of the operating lever, judges that the excavator is in an operating state, controls the dozer blade to descend, so that the dozer blade can support the ground, and the stability of the excavator during operation is ensured; therefore, the detection assembly is matched with the controller to control the dozer blade to automatically lift, so that the situation that the dozer blade is not lifted when the excavator walks due to misoperation of a manipulator or the dozer blade is not lowered when the excavator is in an operation state can be avoided; the damage of the structural part caused by misoperation of a manipulator can be avoided; the operation time of a machine hand is saved, and the working efficiency is improved.

The automatic lifting method of the dozer blade provided by the embodiment of the invention has the beneficial effects that: the automatic lifting method of the dozer blade, provided by the embodiment of the invention, is used for the excavator, the method can avoid damage to structural members caused by manual misoperation, can save the operation time of a manipulator and improve the working efficiency.

The device for controlling the lifting of the dozer blade provided by the embodiment of the invention has the beneficial effects that: the control device for the lifting of the dozer blade is used for the excavator, can avoid damage to structural parts caused by manual misoperation, can save the operation time of a manipulator, and improves the working efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a first block diagram of an excavator according to an embodiment of the present invention;

FIG. 2 is a block diagram of an excavator according to an embodiment of the present invention;

FIG. 3 is a block diagram of the construction of a blade elevation control apparatus according to an embodiment of the present invention;

FIG. 4 is a first flowchart of a method for automatically raising and lowering a blade according to an embodiment of the present invention;

FIG. 5 is a second flowchart of the method for automatically raising and lowering the blade according to the embodiment of the present invention.

Icon: 100-treading; 200-a joystick; 300-a detection component; 310-a controller; 320-a drive member; 330-a dozer blade; 301-a first sensor; 302-a second sensor; 341-displacement sensor; 342-a pressure sensor; 343-an adjustment component; 344-a mode adjustment assembly; 410-an obtaining module; 420-execution module.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1, the present embodiment provides an excavator, which includes pedals 100, a joystick 200, a blade 330, a detection assembly 300, a controller 310 and a driving member 320; the foot pedal 100 is used for controlling the excavator to walk, the joystick 200 is used for controlling the driving piece 320 to move so as to drive the blade 330 to move, and the detection assembly 300 and the driving piece 320 are both electrically connected with the controller 310; the detecting assembly 300 is used for detecting a motion state of at least one of the pedals 100 and the joystick 200; the controller 310 is configured to control the elevation of the blade 330 according to the motion states of the pedals 100 and the joystick 200.

The excavator of the present embodiment may detect a motion state of at least one of the pedals 100 and the joystick 200 using the detection assembly 300 to determine an operation state of the excavator, and control the blade 330 to ascend and descend using the controller 310 according to the motion state of the pedals 100 and the joystick 200, that is, the controller 310 controls the blade 330 to ascend and descend according to the operation state of the excavator, for example: after the detection assembly 300 detects the motion state of the pedals 100, the controller 310 determines that the excavator is in a walking state, the controller 310 controls the dozer blade 330 to ascend to avoid the dozer blade 330 from supporting the ground and avoid the dozer blade 330 from interfering with the walking of the excavator, or after the detection assembly 300 detects the motion state of the operating lever 200, the controller 310 determines that the excavator is in an operating state and controls the dozer blade 330 to descend to support the ground by the dozer blade 330 to ensure the stability of the excavator during operation; thus, when the operator controls the pedals 100 or the operation lever, the detection module 300 detects at least one of the pedals 100 and the operation lever 200 to determine the operation state of the excavator and controls the blade 330 to ascend or descend, so that it is possible to prevent the blade 330 of the excavator in the traveling state from not ascending or the blade 330 of the excavator in the working state from not descending during the operator's misoperation, thereby preventing the structural member from being damaged due to the operator's misoperation, and it is possible to save the operator's operation time and improve the work efficiency when the operator needs to frequently adjust the operation state of the blade 330.

After the detection module 300 detects the movement state of at least one of the pedals 100 and the operating lever, it is possible to transmit a detection signal to the controller 310 and determine whether the excavator is in the traveling state or the working state by the controller 310.

The detecting assembly 300 of the present embodiment can detect the motion state of the pedal 100 as well as the motion state of the operating lever; referring to fig. 2, the detecting assembly 300 includes a first sensor 301 and a second sensor 302, wherein the first sensor 301 and the second sensor 302 are electrically connected to a controller 310; the first sensor 301 is used for detecting the motion state of the pedal 100, and when the first sensor 301 detects that the pedal 100 moves to a first preset position, the controller 310 controls the driving member 320 to drive the dozer blade 330 to ascend; the second sensor 302 is used for detecting the movement device of the joystick 200, and when the second sensor 302 detects that the joystick moves to the second preset position, the controller 310 controls the driving member 320 to drive the blade 330 to descend.

Further, when the first sensor 301 detects that the pedal 100 moves to the first preset position, the first sensor 301 transmits a first signal to the controller 310, the controller 310 receiving the first signal determines that the pedal 100 is controlling the excavator to walk, and the controller 310 controls the driving member 320 to drive the dozer blade 330 to ascend, i.e., the dozer blade 330 of the excavator in the walking state can be ensured to ascend and descend, so as to prevent the dozer blade 330 from interfering with the walking of the excavator. When the second sensor 302 detects that the joystick 200 moves to the second preset position, the second sensor 302 transmits a second signal to the controller 310, the controller 310 receiving the second signal determines that the joystick 200 controls the driving member 320 to drive the blade 330 to work, and the controller 310 controls the driving member 320 to drive the blade 330 to descend, so that the ground supporting of the blade 330 for the excavator in the working state can be ensured, and the stability of the excavator in the working state can be improved.

The type of first sensor 301 may be selected as desired. The first sensor 301 of this embodiment is a pilot pressure sensor, and when the rider steps on the pedal 100, the pilot pressure sensor can detect the pressure applied to the pedal 100, and when the pilot pressure sensor detects that the pressure value applied to the pedal 100 reaches a first preset value, it indicates that the pedal 100 moves to a first preset position, and the pilot pressure sensor transmits a first signal to the controller 310.

In other embodiments, the first sensor 301 may also be an angle sensor, and when the angle sensor detects that the pedal 100 rotates to a preset angle, it indicates that the pedal 100 moves to the first preset position; alternatively, the first sensor 301 can also be a contact switch, and when the pedal 100 moves to the contact switch is turned on, it indicates that the pedal 100 moves to the first predetermined position.

The type of second sensor 302 may be selected as desired. The second sensor 302 of this embodiment is a pilot pressure sensor, and when the joystick 200 is manually moved, the pilot pressure sensor can detect the pressure applied to the joystick 200, and when the pilot pressure sensor detects that the pressure applied to the joystick 200 reaches a second preset value, it indicates that the joystick 200 moves to the second preset position, and the pilot pressure sensor transmits a second signal to the controller 310.

In other embodiments, the second sensor 302 may also be an angle sensor, and when the angle sensor detects that the joystick 200 rotates by a preset angle, it indicates that the joystick 200 moves to the second preset position; alternatively, the second sensor 302 may be a contact switch, and when the joystick 200 moves to the contact switch on, the joystick 200 is moved to the second preset position.

In other embodiments, the second sensor 302 may also be used to detect the motion state of the driving member 320, so that the controller 310 controls the driving member 320 to drive the blade 330 to descend according to the motion state of the driving member 320; for example: when the second sensor 302 detects that the driving member 320 moves a predetermined distance, a detection signal is transmitted to the controller 310, and the controller 310 receiving the detection signal controls the driving member 320 to drive the blade 330 to descend.

Further, when the controller 310 receives the first signal to control the driving member 320 to drive the blade 330 to ascend, the method specifically includes: controlling the driving member 320 to drive the dozer blade 330 to ascend by a set height; thus, the blade 330 is prevented from rising too high, and power waste is avoided.

Referring to fig. 2, the excavator of the present embodiment further includes a displacement sensor 341, and the displacement sensor 341 is electrically connected to the controller 310 and is configured to detect a rising height of the blade 330; the controller 310 is further configured to control the driving member 320 to stop driving the blade 330 to ascend when the displacement sensor 341 detects that the blade 330 ascends by the above-mentioned set height. The displacement sensor 341 is provided to help the controller 310 control the driving member 320 to stably raise the blade 330 to a set height.

The driving member 320 can be selected according to the requirement, and the driving member 320 of the embodiment is an oil cylinder; in other embodiments, the driver 320 may also be a pneumatic cylinder, an electric push rod, or the like.

The displacement sensor 341 is disposed on the cylinder, and is configured to detect a moving distance of the telescopic rod of the cylinder, so as to detect a height of the blade 330 driven by the cylinder to ascend or descend.

Referring to fig. 2, the excavator of the present embodiment further includes an adjusting assembly 343, wherein the adjusting assembly 343 is electrically connected to the controller 310 for controlling the dozer blade 330 to be raised to different set heights; further, the adjusting component 343 can transmit at least two signals to the controller 310, and the following description will take two signals as an example, for example: the adjustment assembly 343 is capable of transmitting a first adjustment signal and a second adjustment signal, and when the controller 310 receives the first signal and the first adjustment signal, the controller 310 can control the driving member 320 to drive the dozer blade 330 to ascend to a first preset height; when the controller 310 receives the first signal and the second adjustment signal, the controller 310 may control the driving member 320 to drive the dozer blade 330 to ascend to a second preset height; thus, the excavator can be more suitable for different working conditions through the adjusting assembly 343 to when different working conditions, the drive dozer blade 330 rises different heights, reach and fully save power, fully protect the structure again.

Further, the adjusting assembly 343 of this embodiment includes at least two contact switches, and at least two contact switches correspond to at least two preset heights one by one, that is, one contact switch in the adjusting assembly 343 is turned on, and the contact switch transmits a corresponding signal to the controller 310, so that the controller 310 controls the driving member 320 to drive the blade 330 to ascend to the corresponding set height. For example: the adjustment assembly 343 has two contact switches, one of which is open to provide a first adjustment signal to the controller 310 and the other of which is open to provide a second adjustment signal to the controller 310.

In other embodiments, the adjusting component 343 may also be a preset adjusting knob, where different rotation angles of the knob correspond to different preset heights, and the working principle of the preset adjusting knob is similar to that of the related art, and is not described herein again.

Referring to fig. 2, the excavator of the present embodiment further includes a pressure sensor 342, wherein the pressure sensor 342 is electrically connected to the controller 310 and is used for detecting the pressure applied to the driving member 320; when the controller 310 controls the driving member 320 to drive the blade 330 to descend until the third signal output by the pressure sensor 342 is received, it is determined that the blade 330 is supported, and the driving member 320 is controlled to stop driving the blade 330 to descend. Therefore, when the blade 330 is lowered to the supporting ground, the driving member 320 can be quickly controlled to stop driving the blade 330 from lowering, and the structural members such as the blade 330 can be prevented from being damaged due to excessive pressure.

The pressure sensor 342 detects the pressure applied to the driver 320, which is: after the driving member 320 drives the blade 330 to descend to contact with the ground, the pressure transmitted to the driving member 320 is reversed when the blade 330 is stopped by the ground and cannot descend in the process of continuing to drive the blade 330 to descend.

Referring to fig. 2, the excavator of the present embodiment further includes a mode adjustment assembly 344 electrically connected to the controller 310; the mode adjustment assembly 344 is used to control the controller 310 to turn on or off to place the excavator in either the automatic mode or the manual mode; therefore, the excavator can be widely used.

The mode adjustment assembly 344 may include a contact switch that when turned on, the controller 310 is turned on and the excavator is in an automatic mode, and when turned off, the controller 310 is turned off and the excavator is in a manual mode.

The automatic mode is: when the first sensor 301 sends a first signal to the controller 310, the controller 310 automatically controls the driving member 320 to drive the blade 330 to ascend, and when the second sensor 302 sends a second signal to the controller 310, the controller 310 automatically controls the driving member 320 to drive the blade 330 to descend, which are two working processes. The manual mode is: before the excavator walks manually, the manipulator 200 controls the driving piece 320 to drive the blade 330 to ascend to a place away from the ground, or before the excavator works, the manipulator 200 controls the driving piece 320 to drive the blade 330 to descend to a supporting place.

It should be further noted that the controller 310 of the present embodiment is configured to be manually prioritized, that is, when the mode adjustment assembly 344 turns on the controller 310 to make the excavator in the automatic mode, if the manipulator manually controls the blade 330 to move up and down, the manipulator controls the blade 330 to move up and down according to the operation of the manipulator.

The use of the excavator of the present invention includes: when the hand presses the pedal 100, when the first sensor 301 transmits a first signal to the controller 310, the controller 310 determines that the excavator is in a walking state, and the controller 310 controls the driving member 320 to drive the dozer blade 330 to ascend, so that the dozer blade 330 is prevented from supporting the ground when the excavator walks; alternatively, when the second sensor 302 transmits the second signal to the controller 310 by the movement of the manipulator 200, the controller 310 determines that the excavator is in the working state, the controller 310 controls the driving unit 320 to drive the blade 330 to move down so that the blade 330 supports the ground, and when the controller 310 receives the third signal output from the pressure sensor 342, the controller 320 stops driving the blade 330 to move down.

It should be noted that the electrical connections mentioned in this embodiment may be communicatively connected through various types of wires.

In summary, the excavator of the present embodiment controls the dozer blade 330 to automatically lift through the cooperation of the detection assembly 300 and the controller 310, so that it can be avoided that the dozer blade 330 is not lifted when the excavator walks due to the misoperation of the manipulator, or the dozer blade 330 is not lowered in the operation state of the excavator; the damage of the structural part caused by misoperation of a manipulator can be avoided; the operation time of a machine hand is saved, and the working efficiency is improved.

Referring to fig. 3, the present invention further provides a device for controlling the elevation of a blade, which is used in the excavator of the present embodiment, and includes an obtaining module 410 and an executing module 420.

The obtaining module 410 is used for obtaining the motion state of at least one of the pedals 100 and the joystick 200; the execution module 420 is used for controlling the blade 330 to ascend and descend according to the motion states of the pedals 100 and the operating lever 200.

The acquiring module 410 can acquire the motion state of the pedals 100 detected by the first sensor 301 and the motion state of the joystick 200 detected by the second sensor 302; when the acquisition module 410 receives a first signal transmitted by the first sensor 301, it is determined that the pedals 100 move to a first preset position, and at the moment, the excavator is in a walking state; when the acquisition module 410 receives the second signal transmitted by the second sensor 302, it is determined that the joystick 200 is moved to the second preset position, and the excavator is in the working state at this time.

The execution module 420 specifically controls the lifting of the blade 330 according to the signal acquired by the acquisition module 410, for example: when the obtaining module 410 obtains the first signal, the executing module 420 controls the driving member 320 to drive the blade 330 to ascend; when the obtaining module 410 obtains the second signal, the executing module 420 controls the driving member 320 to drive the blade 330 to descend. Thus, when the excavator is in a traveling state, the blade elevation control device controls the elevation of the blade 330, and the excavator can be prevented from supporting the ground when the excavator travels, thereby protecting the structural members of the excavator; when the excavator is in an operating state, the blade elevation control device controls the blade 330 to descend so that the blade 330 supports the ground, thereby improving the stability of the excavator during operation.

To sum up, the blade lifting control device of this embodiment can avoid manual maloperation to cause the damage of structure, can also save the quick-witted hand operating time, improves work efficiency.

Referring to fig. 4, the present invention further provides an automatic lifting method for a blade of the excavator, including:

s100: the motion state of at least one of the foothold 100 and the joystick 200 is acquired.

The excavator of the present embodiment is provided with the sensing assembly 300 capable of sensing the motion state of at least one of the foothold 100 and the joystick 200 and transmitting the sensed motion state of at least one of the foothold 100 and the joystick 200 to the controller 310 so that the sensing module 410 senses the motion state of at least one of the foothold 100 and the joystick 200.

Further, the detecting assembly 300 of the present embodiment includes a first sensor 301 and a second sensor 302; the first sensor 301 is electrically connected with the controller 310 and is used for detecting whether the excavator pedal 100 moves to a first preset position or not, when the pedal 100 moves to the first preset position, the first sensor 301 transmits a first signal to the controller 310, namely when the controller 310 receives the first signal, the controller 310 judges that the pedal 100 moves to the first preset position; the second sensor 302 is electrically connected to the controller 310 for detecting whether the joystick 200 of the excavator moves to the second preset position, and when the joystick 200 moves to the second preset position, the second sensor 302 transmits a second signal to the controller 310, that is, when the controller 310 receives the second signal, it is determined that the joystick 200 moves to the second preset position.

S200: according to the motion states of the pedals 100 and the joystick 200, the blade 330 is controlled to ascend and descend.

The automatic lifting method of the blade provided by the invention can control the blade 330 to ascend according to the motion state of the pedal 100, so that when the excavator is in a walking state, the blade 330 is ensured to be lifted and lifted off the ground, thereby avoiding the damage to structural members when the excavator walks; or the blade 330 is controlled to descend according to the movement state of the joystick 200, so that the blade 330 is ensured to descend and be supported on the ground when the excavator is in the working state, thereby improving the stability of the excavator in the working state.

Further, referring to fig. 5, step S200 specifically includes step S201 and step S202, and the specific contents are as follows:

s201: when the pedals 100 move to the first predetermined position, the blade 330 is controlled to ascend.

When the first sensor 301 sends the first signal to the controller 310, the controller 310 determines that the pedals 100 move to the first predetermined position, and the actuating member 320 is controlled by the executing module 420 of the controller 310 to drive the blade 330 to ascend.

Further, when the controller 310 receives the first signal, the driving member 320 is controlled to drive the blade 330 to ascend to a set height.

Still further, before the controller 310 receives the first signal, the adjusting assembly 343 may be used to transmit different adjusting signals to the controller 310, so that when the controller 310 receives the first signal to control the driving member 320 to drive the blade 330 to ascend, the blade 330 is driven to ascend by a preset height of the corresponding adjusting signal.

S202: when the joystick 200 is moved to the second preset position, the blade 330 is controlled to descend.

When the second sensor 302 transmits a second signal to the controller 310, the controller 310 determines that the joystick 200 moves to the second preset position, and the actuator module 420 of the controller 310 controls the driving member 320 to drive the blade 330 to descend.

Further, when the controller 310 receives a third signal from the pressure sensor 342 while the second signal controls the driving member 320 to drive the blade 330 to descend, the controller 320 controls the driving member 320 not to drive the blade 330 to descend, so as to prevent the driving member 320 from being damaged by pressure.

In summary, the embodiment of the invention provides an automatic lifting method of a dozer blade, which can avoid damage to structural members caused by manual misoperation, save the operation time of a machine operator and improve the working efficiency.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.