CN112012259A

CN112012259A - Land leveler operation device, control method thereof and land leveler

Info

Publication number: CN112012259A
Application number: CN202011016220.5A
Authority: CN
Inventors: 于友斌; 侯志强; 廖昊; 段俊杰
Original assignee: Jiangsu Xugong Construction Machinery Research Institute Co ltd
Current assignee: Jiangsu Xugong Construction Machinery Research Institute Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2020-12-01

Abstract

The present disclosure relates to a grader working device, a control method thereof, and a grader, wherein the grader working device includes a blade mechanism (2) including a blade (21); the soil loosening mechanism (1) comprises a mounting part, a connecting part and a soil loosening operation part, wherein the mounting part is mounted on the blade mechanism (2), the connecting part is connected to the mounting part in a swinging mode in a vertical plane where the front and back directions of the land leveler are located, and the soil loosening operation part is consistent with the extending direction of the blades (21) and is rotatably arranged on the connecting part around the axis of the soil loosening operation part; the connecting component is configured to selectively swing to a first position or a second position according to the working condition of the blade (21), and the soil loosening working component is positioned in front of the blade (21) in the first position; in the second position, the ripping operation member is positioned behind the blade (21).

Description

Land leveler operation device, control method thereof and land leveler

Technical Field

The disclosure relates to the technical field of land levellers, in particular to a land leveller operating device, a control method of the land leveller operating device and a land leveller.

Background

The land leveler is one of important equipments in national defense, traffic, agriculture and water conservancy basic construction, and is mainly used for soil leveling operation and construction operations such as slope scraping, ditching, bulldozing, soil loosening, road ice and snow clearing and the like.

When the soil is hard, the hard soil needs to be loosened in advance, so that the resistance borne by the cutting blade during operation is reduced, and as shown in fig. 1, the land leveler in the related art loosens the soil by installing a middle loosening mechanism 2A or a rear loosening mechanism 3A. The middle loosening mechanism 2A is located in the middle of the traction frame and in front of the scraper knife 2A, occupies a large space and influences the side-standing posture adjustment of the scraper knife; the back loosening mechanism 3A cannot meet the seamless connection of two operation processes of loosening the soil and flattening, and needs to turn back to flatten the operation after the loosening operation, so that the efficiency is low.

Disclosure of Invention

The embodiment of the disclosure provides a land leveler operation device, a control method thereof and a land leveler, which can realize seamless connection of soil loosening and leveling operation working conditions on the basis of not influencing the posture adjustment of a blade.

A first aspect of the present disclosure provides a grader working apparatus comprising:

a blade mechanism including a blade;

the soil loosening mechanism comprises an installation part, a connecting part and a soil loosening operation part, wherein the installation part is installed on the scraper blade mechanism, the connecting part is connected to the installation part in a swinging mode in a vertical plane where the front and back directions of the grader are located, the soil loosening operation part is consistent with the extending direction of the scraper blade, and the soil loosening operation part is rotatably arranged on the connecting part around the axis of the soil loosening operation part;

the connecting component is configured to selectively swing to a first position or a second position according to the working condition of the blade, and the soil loosening working component is positioned in front of the blade in the first position; in the second position, the ripping operation member is located behind the blade.

In some embodiments, the connecting member is in the first position when the blade is subjected to a resistance greater than a predetermined resistance to performing the leveling operation;

when the resistance borne by the scraper knife during the leveling operation is not more than the preset resistance, the connecting part is in the second position; and/or

When the scraper blade performs slope scraping operation, the connecting component is configured to be at the first position, and after the scraper blade is adjusted to the slope scraping posture, the connecting component is switched to the second position.

In some embodiments, the blade mechanism further comprises:

the upper guide rail component and the lower guide rail component are arranged on the rear side surface of the scraper knife at intervals along the vertical direction;

wherein the mounting member is fixed to the lower rail member.

In some embodiments, the ripping mechanism further includes:

a first driving member provided on the mounting member and configured to provide a driving force to a swing of the connection member; and/or

And a second driving member provided on the connecting member and configured to provide a driving force for rotating the loosening operation member.

In some embodiments, the connecting member comprises:

the rotating shaft is consistent with the extending direction of the scraper knife and is rotatably connected with the mounting part; and

two connecting rod parts are respectively positioned on two sides of the scraper knife along the left-right direction, respective first ends of the two connecting rod parts are respectively fixedly connected with two ends of the rotating shaft, and respective second ends of the two connecting rod parts are respectively rotatably connected with two ends of the soil loosening operation part.

In some embodiments, the mounting member comprises:

a base plate fixed to the blade mechanism; and

the supporting seats are fixed on the base plate and distributed on two sides of the central position of the rotating shaft along the axial direction of the rotating shaft, and through holes are formed in the supporting seats;

wherein, the through-hole of two at least supporting seats is passed in proper order to the pivot, and rotationally sets up for two at least supporting seats.

In some embodiments, the ripping operation component includes:

the two ends of the roll shaft are respectively and rotatably connected with the second ends of the two connecting rod parts; and

a plurality of sword tooth group sets gradually along the axial of roller, and every sword tooth group includes a plurality of sword teeth of a plurality of circumference arrangements along the roller.

In some embodiments, the cutter teeth comprise:

the tooth holder is arranged on the side wall of the roll shaft, and is provided with an installation groove; and

tooth point portion, detachably establishes in the mounting groove.

In some embodiments, the link assembly is telescopically arranged.

In some embodiments, the link member includes:

the connecting rod body is provided with a slideway cavity along the length direction of the connecting rod body, the slideway cavity is provided with an opening at the second end of the connecting rod body, and the first end of the connecting rod body is fixed at the end part of the rotating shaft;

the first end of the sliding rod is movably arranged in the slideway cavity and seals the opening, and the second end of the sliding rod is rotatably connected with the end part of the soil loosening operation part; and

the third driving part is configured to provide driving force for the movement of the sliding rod, the third driving part is arranged in the slideway cavity, the first end of the third driving part is rotatably connected with the rotating shaft, and the second end of the third driving part is connected with the first end of the sliding rod through a spherical hinge.

In some embodiments, the ripping mechanism further includes:

a second driving member configured to provide a driving force for rotation of the soil loosening operation member;

wherein, the second end of slide bar is equipped with the mounting hole, and the second driver part inlays to be established in the mounting hole.

In some embodiments, the ripping mechanism further includes:

a first driving member configured to provide a driving force to the swing of the connection member;

a third driving member configured to provide a driving force to the extension and contraction of the link member;

an angle sensor configured to detect a rotation angle of the rotation shaft;

a displacement sensor configured to detect a telescopic displacement of the link member; and

and the control component is electrically connected with the angle sensor and the displacement sensor and is configured to control the action amounts of the first driving component and the third driving component according to the preset soil penetration depth, the rotation angle of the rotating shaft and the telescopic displacement of the connecting rod component so as to adjust the soil penetration depth of the soil loosening operation component.

A second aspect of the present disclosure provides a grader including the grader working apparatus of the above embodiment.

A third aspect of the present disclosure provides a control method for a grader working apparatus according to the above embodiment, including:

determining the operation condition of the scraper knife;

the connecting component can be selectively swung to the first position or the second position according to the working condition of the scraper knife.

In some embodiments, selectively swinging the link member to the first position or the second position based on the operating condition of the blade includes:

when the resistance borne by the scraper knife for carrying out leveling operation is larger than the preset resistance, the connecting part is positioned at a first position;

when the resistance borne by the scraper knife during the leveling operation is not more than the preset resistance, the connecting part is positioned at the second position; and/or

When the scraper blade performs slope scraping operation, the connecting component is firstly positioned at the first position, and is switched to the second position after the scraper blade is adjusted to the slope scraping posture.

In some embodiments, the control method further comprises:

and adjusting the soil penetration depth of the soil loosening operation part to a preset soil penetration depth.

In some embodiments, the connecting member comprises: the rotating shaft is consistent with the extending direction of the scraper knife and is rotatably connected with the mounting part; the two telescopic connecting rod parts are respectively positioned at two sides of the scraper knife along the left-right direction, the respective first ends of the two connecting rod parts are respectively fixedly connected with two ends of the rotating shaft, and the respective second ends of the two connecting rod parts are respectively rotatably connected with two ends of the soil loosening operation part; adjusting the depth of penetration of the scarification operation part comprises:

acquiring a preset soil penetration depth;

detecting the rotation angle of the rotating shaft through an angle sensor;

detecting the telescopic displacement of the connecting rod part through a displacement sensor;

and adjusting the action amounts of the first driving part and the third driving part according to the preset soil penetration depth, the rotation angle of the rotating shaft and the telescopic displacement of the connecting rod part so as to adjust the soil penetration depth of the soil loosening operation part.

Based on the technical scheme, the soil loosening mechanism is arranged on the blade mechanism, when the blade executes leveling operation, if soil is required to be loosened, the soil loosening operation part can swing to the front of the blade, so that the soil loosening operation and the leveling operation working condition are in seamless connection, and the operation efficiency is improved; when the soil is not loosened, the soil loosening operation part can swing to the rear of the scraper knife, the operation of the scraper knife is not influenced completely, and the switching of different operation working conditions can be more flexible. Moreover, when the posture of the scraper knife mechanism needs to be adjusted, the soil loosening mechanism moves along with the scraper knife mechanism and cannot interfere with the scraper knife mechanism, so that the influence on the posture adjustment of the scraper knife can be avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

FIG. 1 is a schematic diagram of a prior art ripping mechanism mounted on a grader;

FIG. 2 is an installation schematic of some embodiments of a grader work implement according to the present disclosure;

FIG. 3 is a schematic block diagram of some embodiments of a grader work implement according to the present disclosure;

FIG. 4 is a main schematic view of some embodiments of the grader work implement of the present disclosure;

FIG. 5 is a schematic illustration of the ripping mechanism in a grader work implement according to the present disclosure in a first position;

FIG. 6 is a schematic illustration of the ripping mechanism in a second position of the disclosed grader work implement;

FIG. 7 is a schematic view of some embodiments of a blade tooth of the ripping mechanism;

FIG. 8 is a schematic view showing the positional relationship of the parts of the ripping mechanism;

fig. 9 is a cross-sectional view of some embodiments of a ripping structure.

Detailed Description

The present disclosure is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features considered to be preferred or advantageous.

The terms "first", "second", and the like in the present disclosure are merely for convenience of description to distinguish different constituent elements having the same name, and do not denote a sequential or primary-secondary relationship.

In the description of the present disclosure, the directions or positional relationships indicated by "up", "down", "left", "right", "front", "rear", "inner", and "outer" and the like are all defined based on the direction in which the operator sits in the cab, and are merely for convenience of description of the present disclosure, and do not indicate or imply that the device referred to must have a specific direction, be configured and operated in a specific direction, and therefore, should not be construed as limiting the scope of the present disclosure.

As shown in fig. 2, the motor grader includes a front frame 3, a traction frame 4, a swing member 5, a left lift cylinder 6, and a right lift cylinder 7. Traction frame 4 passes through the ball pivot and connects in front frame 3 below, and traction frame 4 can be the triangle-shaped structure, and the front end of triangle-shaped structure passes through the ball pivot with front frame 3's front end and is connected, and traction frame 4 can outwards be swung for front frame 3 from left side or right side is whole to the execution scrapes the slope operation. The left lifting oil cylinder 6 and the right lifting oil cylinder 7 are respectively connected to the left end and the right end of the rear part of the traction frame 3, so that the left and the right or the front and back inclination angles of the traction frame 3 can be changed through the matching motion.

The swing member 5 is located below the traction frame 3 and the grader working apparatus 100 is located below the swing member 5. for example, the swing member 5 may be a swing ring gear that is rotated by a drive member to rotate the grader working apparatus 100 in a horizontal plane.

As shown in fig. 1-9, the present disclosure provides a grader working apparatus that, in some embodiments, includes a blade mechanism 2 and a ripping mechanism 1, the blade mechanism 2 including a blade 21 for performing grading or grading work.

The soil loosening mechanism 1 comprises an installation part, a connection part and a soil loosening operation part, the installation part is installed on the blade mechanism 2, the connection part is connected to the installation part in a swinging mode in a vertical plane where the front and back directions of the grader are located, the soil loosening operation part is consistent with the extending direction of the blade 21, and the soil loosening operation part is rotatably arranged on the connection part around the axis of the soil loosening operation part.

Wherein the connecting member is configured to selectively swing to a first position or a second position according to the working condition of the blade 21, as shown in fig. 5, when the first position is, the soil loosening working member is located in front of the blade 21; as shown in fig. 6, in the second position, the ripping operation member is located behind blade 21.

In the embodiment, the soil loosening mechanism 1 is arranged on the blade mechanism 2, and when the blade 21 performs leveling operation, if soil is required to be loosened, the soil loosening operation part can swing to the front of the blade 21, so that the soil loosening operation and the leveling operation work condition are in seamless connection, and the operation efficiency is improved; when the soil is not needed to be loosened, the soil loosening operation component can swing to the rear of the scraper knife 21, the operation of the scraper knife 21 is not affected completely, and the switching of different operation working conditions can be more flexible. Moreover, when the posture of the blade mechanism 2 needs to be adjusted, the scarification mechanism 1 moves along with the blade mechanism 2 and does not interfere with the front frame 3, so that the influence on the adjustment of the blade posture can be avoided.

In some embodiments, when the blade 21 is subjected to a resistance greater than a predetermined resistance during leveling work, i.e., the work medium is hard soil, the connecting member is in the first position to loosen soil and then level the ground, so that the soil loosening and leveling work can be performed continuously without requiring the return of the grader, thereby improving work efficiency.

When scraper knife 21 carries out the resistance that levels the operation and receives and is not more than predetermineeing the resistance, the operation medium is loose soil or other easily level the operation medium promptly, and adapting unit is in the second position, need not loosen the soil this moment, and the operation part that loosens the soil swings to scraper knife 21 rear, does not influence scraper knife 21 operation completely, can make the switching of different operation operating modes more nimble.

When the blade 21 performs the slope scraping work, the connecting member is configured to be at the first position, and to be switched to the second position after the blade 21 is adjusted to the slope scraping posture. When slope scraping operation needs to be executed, the scraper knife 21 is moved out towards the outside of the vehicle body along the left-right direction, then the scraper knife 21 is in an inclined posture through the matching of the left lifting oil cylinder 6, the right lifting oil cylinder 7 or other driving components, and before the posture of the scraper knife 21 is adjusted, the connecting component is in the first position, so that the size of the grader operating device 100 in the front-back direction can be reduced, the posture of the scraper knife 21 can be adjusted conveniently, the adjusting process is more stable, and the scraper knife is not prone to shaking. After the posture of the blade 21 is adjusted, the scarification mechanism 1 does not need to be operated during the slope scraping work, so that the connection member is switched to the second position so as not to affect the slope scraping work.

In some embodiments, as shown in fig. 2 and 3, the blade mechanism 2 further includes: upper track member 22 and lower track member 23. The upper rail member 22 and the lower rail member 23 are provided at a vertical interval on the rear side of the blade 21. The attachment member is fixed to the lower rail member 23, so that the ripping mechanism 1 moves left and right in synchronization with the blade 21 when the blade 21 moves in the left and right directions. Moreover, when the loosening mechanism 1 is mounted on the lower rail member 23, it is not likely to interfere with the member above the blade 21, and thus it is easy to mount.

In some embodiments, as shown in fig. 3, ripping mechanism 1 further includes: a first driving member 12 provided on the mounting member and configured to provide a driving force to the swing of the connection member to switch the connection member between the first position and the second position; and/or a second driving component 16 arranged on the connecting component and configured to provide driving force for the rotation of the soil loosening operation component so as to perform soil loosening operation, wherein the power of the second driving component 16 is determined by the torque applied to the soil loosening and the rotating speed of the roller 17. For example, the first and

second drive components

12, 16 may be motors or the like.

This embodiment can switch the position of mechanism 1 that loosens the soil automatically and open and stop the operation that loosens the soil, can improve the degree of automation and the flexibility of the switching of the various operation operating modes of leveler, improves the operating efficiency. By providing the second driving member 16, the soil loosening operation member simultaneously relies on the forward movement of the grader and the power provided by the second driving member 16 to loosen the soil, so that greater driving force can be obtained when the soil loosening operation is performed, the soil loosening efficiency is improved, and the soil loosening operation member is suitable for soil qualities in different ranges.

In some embodiments, the connecting member comprises: a rotating shaft 14 and two link members 15. The rotating shaft 14 is aligned with the extending direction of the blade 21 and is rotatably connected to the mounting member. The two connecting rod parts 15 are respectively positioned at two sides of the shovel blade 21 along the left-right direction, the respective first ends of the two connecting rod parts 15 are respectively fixedly connected with two ends of the rotating shaft 14, and the respective second ends of the two connecting rod parts 15 are respectively rotatably connected with two ends of the soil loosening operation part. The grader working apparatus 100 is formed in a bilaterally symmetrical configuration regardless of the arrangement of the cutter teeth 18.

This embodiment enables the loosening mechanism 1 to be more stably connected to the blade mechanism 2, and enables the movement of the loosening operation member to be more stable when the connection mechanism is switched between the first position and the second position, thereby improving the system stability.

In some embodiments, as shown in fig. 3, the mounting member comprises: a base plate 11 and at least two support bases 13. The base plate 11 is fixed to the blade mechanism 2, and the base plate 11 is fixed to the lower rail member 23, for example. At least two supporting seats 13 are fixed on the substrate 11 and distributed on two sides of the rotating shaft 14 along the axial center of the rotating shaft, and through holes are formed in the supporting seats 13. The rotating shaft 14 sequentially passes through the through holes of the at least two supporting seats 13 and is rotatably disposed relative to the at least two supporting seats 13. The base plate 11 can adopt an integral plate-shaped structure, or can be arranged into a plurality of independent base plates 11, a supporting seat 13 is fixed on each base plate 11, three base plates 11 are arranged in fig. 3, one base plate 11 is positioned in the middle position of the left and right directions and used for installing a first driving part 12, the first driving part 12 can be a double-shaft motor to provide balanced driving power for rotating shafts 14 on two sides, the double-shaft motor is detachably arranged, a proper motor model can be selected according to theoretical calculation, and the selected motor power is enough to meet the requirements of rotation and positioning of the front and rear positions of the soil loosening mechanism 1; the other two substrates 11 are positioned at the left and right sides of the middle substrate 11, and a support base 13 is respectively installed.

This embodiment can realize that the connecting rod part can rotationally set up for the installation component to make the connecting rod part swing between primary importance and second place, and the spacing effect of support through supporting seat 13 can make the swing of connecting rod part more stable, with the stability of reinforcing loosening mechanism 1.

In some embodiments, as shown in fig. 3 and 4, the ripping operation component includes: a roller shaft 17 having both ends rotatably connected to respective second ends of the two link members 15; and a plurality of cutter tooth groups provided in order in the axial direction of the roller shaft 17, each cutter tooth group including a plurality of cutter teeth 18 arranged in the circumferential direction of the roller shaft 17.

In some embodiments, as shown in FIG. 7, cutter teeth 18 include: the tooth holder 181 is mounted on the side wall of the roll shaft 17, and the tooth holder 181 is provided with a mounting groove 183; and a tooth tip 182 detachably provided in the mounting groove 183. For example, the tooth tip 182 is secured within the mounting slot 183 by a fastener 184, such as a screw.

Because cutter teeth 18 need loosen the soil to harder ground, cutter teeth 18's degree of wear is great, through setting up detachable tooth point portion 182, can make cutter teeth 18's change more convenient.

In some embodiments, the link assembly 15 is telescopically arranged. This embodiment can conveniently adjust the depth of penetrating into the soil of the operation part that loosens the soil to satisfy the different demands of the operation of loosening the soil.

In some embodiments, as shown in fig. 9, the link member 15 includes: a link body 151, a slide lever 153, and a third driving part 152.

Wherein, connecting rod body 151 can be long rod-shaped structure, and is equipped with slide cavity 1511 along self length direction, and slide cavity 1511 has the opening at the second end of connecting rod body 151, and the first end of connecting rod body 151 is fixed at the tip of pivot 14, for example can adopt the welding mode. A first end of the sliding rod 153 is movably disposed in the chute cavity 1511 and closes the opening, and a second end of the sliding rod 153 is rotatably connected to an end of the soil loosening operation component, specifically, the roller shaft 17. The third driving member 152 is configured to provide a driving force for the movement of the sliding rod 153, the third driving member 152 is disposed in the chute cavity 1511, a first end of the third driving member 152 is rotatably connected to the rotating shaft 14, and a second end of the third driving member 152 is connected to the first end of the sliding rod 153 by a ball hinge, so as to achieve the extension and retraction of the link member 15. Specifically, the sliding rod 152 may include a rod body and a hinged seat connected to the rod body, the soil loosening operation component is installed on the rod body, the hinged seat is provided with a spherical groove, and the ball head of the second end of the third driving component 152 is matched with the spherical groove.

For example, the third driving member 152 may be an electric push rod or a hydraulic cylinder, and the third driving member in fig. 9 is a hydraulic cylinder, and includes a cylinder tube 1521, a cylinder cover 1522 and a piston rod 1523, the piston rod 1523 is movably disposed in the cylinder tube 1521, and one end of the piston rod 1523 located outside the cylinder tube 1521 is connected to the slide rod 152.

This embodiment establishes third drive component 152 in connecting rod body 151, can reduce occupation space, and because the soil loosening and shoveling operation operating mode of leveler is comparatively abominable, this structure can prevent that third drive component 152 from exposing and receiving the damage outward.

In some embodiments, ripping mechanism 1 further includes: a second driving member 16 configured to provide a driving force for rotating the loosening work member; the second end of the sliding rod 153 is provided with a mounting hole 1531, and the second driving part 16 is embedded in the mounting hole 1531. This embodiment enables the second driving part 16 to be integrated into the sliding rod 153 without additional space and also protects the second driving part 16.

In some embodiments, ripping mechanism 1 further includes: a first driving member 12 configured to provide a driving force to the swing of the connection member; a third driving member 152 configured to provide a driving force to the extension and contraction of the link member 15; an angle sensor configured to detect a rotation angle of the rotating shaft 14; a displacement sensor configured to detect a telescopic displacement of the link member 15; and a control part electrically connected with the angle sensor and the displacement sensor and configured to control the action amount of the first driving part 12 and the third driving part 152 according to the preset penetration depth, the rotation angle of the rotating shaft 14 and the telescopic displacement of the connecting rod part 15 so as to adjust the penetration depth of the soil loosening working part.

In this embodiment, the angle sensor and the displacement sensor are connected to a current detection port of the control part; the electro proportional valve is connected with the PWM port of the control part, and when the third driving part 152 is a hydraulic cylinder, the electro proportional valve can be used to control the extension and retraction of the hydraulic cylinder; the human-computer interaction display is connected with the control component through the CAN bus.

This embodiment detects through the turned angle of countershaft 14 and third driver part 152, can obtain actual depth of penetrating into the soil to compare with the depth of penetrating into the soil of predetermineeing through actual depth of penetrating into the soil, thereby accurately control the action volume of first driver part 12 and third driver part 152, with the automatic accurate adjustment of the depth of penetrating into the soil, guarantee the effect of loosening the soil.

Wherein the preset penetration depth can be stored in the control unit; or the operation can be carried out through a human-computer interaction interface, the mode can lead an operator to preset the soil penetration depth to realize one-key control of the soil penetration depth of the cutter teeth, the operation intensity can be reduced, and the operation efficiency and the service life of the scraper knife are greatly improved.

In the control method for realizing the soil penetration depth, it is necessary to establish a function relationship between the soil penetration depth and the telescopic displacement L of the link member 15 (i.e., the displacement of the third driving member 152) and the rotation angle θ of the rotating shaft 14 (i.e., the rotation angle of the first driving member 12. as shown in fig. 8, the distance from the tooth tip to the center of the roller shaft 17 is a constant value R, the distance H from the center of the rotating shaft 14 to the bottom surface of the blade 21, and the distances L and θ change with the rotation of the first driving member 12 and the linear motion of the third driving member 152. the angle sensor and the displacement sensor collect numerical information, and the relation between the soil penetration depth Δ H of the ripping mechanism 1 and the telescopic displacement L of the link member 15 and the rotation angle θ of the rotating shaft 14 is as:

ΔH＝R+L*sinθ-H

the functional relation formula is written into the control part, a manipulator only needs to input a preset soil penetration depth on a man-machine interaction display screen, the CAN bus sends a target value to the control part, and the control part controls the electric proportional valve through the PWM port to realize the action of the hydraulic cylinder and the double-shaft motor in the connecting rod part in the soil loosening mechanism 1 after receiving a control signal, so that the soil penetration depth of the soil loosening mechanism 1 is controlled by one key.

Secondly, the present disclosure provides a grader including the grader working apparatus of the above embodiment. The land leveler has at least one of the following effects:

1. can realize loosening the soil-leveling operation operating mode seamless connection, the mechanism that loosens the soil can adjust to scraper blade front and back position according to the operating mode, and the operation of leveling is carried out immediately after loosening the soil, and the leveler need not to turn back, improves operating efficiency and scraper blade life-span greatly.

2. The soil loosening mechanism is installed on the scraper knife structure, the occupied space is small, and the influence of the original soil loosening mechanism on the posture adjustment of the scraper knife is eliminated.

3. An earth penetration depth control system is provided based on a soil loosening mechanism, so that one-key type control of the earth penetration depth of a cutter tooth is realized, the operation intensity of a manipulator is reduced, the posture adjustment time is shortened, and the operation efficiency is improved.

The present disclosure provides a control method of a grader working apparatus based on the above embodiments, which in some embodiments includes:

step 101, determining the operation condition of the scraper knife 21;

and 102, selectively swinging the connecting part to a first position or a second position according to the working condition of the scraper knife 21.

In the embodiment, the soil loosening mechanism 1 is arranged on the blade mechanism 2, and when the blade 21 performs leveling operation, if soil is required to be loosened, the soil loosening operation part can swing to the front of the blade 21, so that the soil loosening operation and the leveling operation work condition are in seamless connection, and the operation efficiency is improved; when the soil is not needed to be loosened, the soil loosening operation component can swing to the rear of the scraper knife 21, the operation of the scraper knife 21 is not affected completely, and the switching of different operation working conditions can be more flexible. Moreover, when the posture of the blade mechanism 2 needs to be adjusted, the scarification mechanism 1 moves along with the blade mechanism 2 and does not interfere with the blade mechanism 2, so that the influence on the adjustment of the blade posture can be avoided.

In some embodiments, the step 102 of selectively swinging the connecting member to the first position or the second position according to the operation condition of the blade 21 includes:

when the resistance borne by the scraper knife 21 during leveling operation is greater than the preset resistance, the connecting part is located at the first position, so that the ground is leveled after the soil is loosened, the soil loosening and leveling operation is continuously performed, the return of the grader is not needed, and the operation efficiency can be improved.

When scraper knife 21 carries out the resistance that levels the operation and receives and is not more than predetermineeing the resistance, make adapting unit be in the second position, need not loosen the soil this moment, the operation part that loosens the soil swings to scraper knife 21 rear, does not influence scraper knife 21 operation completely, can make the switching of different operation operating modes more nimble.

When the scraper 21 performs the slope scraping operation, the connecting member is first located at the first position, and is switched to the second position after the scraper 21 is adjusted to the slope scraping posture. Before the posture of the blade 21 is adjusted, the connecting member is in the first position, so that the size of the grader working device 100 in the front-rear direction can be reduced, the posture of the blade 21 can be adjusted, the adjustment process is more stable, and the blade is not easy to shake. After the posture of the blade 21 is adjusted, the scarification mechanism 1 does not need to be operated during the slope scraping work, so that the connection member is switched to the second position so as not to affect the slope scraping work.

In some embodiments, the control method of the present disclosure further includes:

and 103, adjusting the soil penetration depth of the soil loosening operation part to a preset soil penetration depth.

This embodiment can satisfy the different demands of the operation of loosening the soil through the degree of depth of penetrating into the soil of adjusting the operation part of loosening the soil, and the degree of depth of penetrating into the soil can be confirmed according to the soil layer thickness that follow-up spiller carried out the leveling operation.

In some embodiments, the connecting member comprises: a rotating shaft 14 which is aligned with the extending direction of the blade 21 and is rotatably connected to the mounting member; the two telescopic connecting rod parts 15 are respectively positioned at two sides of the scraper knife 21 along the left-right direction, the respective first ends of the two connecting rod parts 15 are respectively fixedly connected with two ends of the rotating shaft 14, and the respective second ends of the two connecting rod parts 15 are respectively rotatably connected with two ends of the soil loosening operation part; step 103 of adjusting the soil penetration depth of the soil loosening operation part comprises:

103A, acquiring a preset soil penetration depth, wherein the preset soil penetration depth can be stored in a control part or can be set through a human-computer interaction interface;

step 103B, detecting the rotation angle of the rotating shaft 14 through an angle sensor;

step 103C, detecting the telescopic displacement of the connecting rod part 15 through a displacement sensor;

and 103D, adjusting the action amount of the first driving part 12 and the third driving part 152 according to the preset soil penetration depth, the rotation angle of the rotating shaft 14 and the telescopic displacement of the connecting rod part 15 so as to adjust the soil penetration depth of the soil loosening working part.

The embodiments provided by the present disclosure are described in detail above. The principles and embodiments of the present disclosure are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present disclosure. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present disclosure without departing from the principle of the present disclosure, and such improvements and modifications also fall within the scope of the claims of the present disclosure.

Claims

1. A land leveler operation device is characterized in that,

a blade mechanism (2) including a blade (21);

the soil loosening mechanism (1) comprises an installation part, a connecting part and a soil loosening operation part, wherein the installation part is installed on the blade mechanism (2), the connecting part is connected to the installation part in a swinging mode in a vertical plane where the front and back directions of the land leveler are located, the soil loosening operation part is consistent with the extending direction of the blade (21), and the soil loosening operation part is rotatably arranged on the connecting part around the axis of the soil loosening operation part;

wherein the connecting component is configured to be selectively swung to a first position or a second position according to the working condition of the blade (21), and the soil loosening working component is positioned in front of the blade (21) in the first position; in the second position, the ripping operation member is located behind the blade (21).

2. The motor grader working apparatus according to claim 1, wherein,

when the resistance borne by the scraper knife (21) in the leveling operation is larger than the preset resistance, the connecting component is positioned at the first position;

when the resistance borne by the scraper knife (21) in the leveling operation is not more than the preset resistance, the connecting part is in the second position; and/or

When the scraper knife (21) performs slope scraping operation, the connecting component is configured to be located at the first position, and after the scraper knife (21) is adjusted to the slope scraping posture, the connecting component is switched to the second position.

3. The grader working apparatus according to claim 1, wherein the blade mechanism (2) further comprises:

an upper guide rail component (22) and a lower guide rail component (23) which are arranged on the rear side surface of the scraper knife (21) at intervals along the vertical direction;

wherein the mounting member is fixed to the lower rail member (23).

4. The grader working apparatus according to claim 1, wherein the ripping mechanism (1) further includes:

a first driving member (12) provided on the mounting member and configured to provide a driving force to a swing of the connection member; and/or

And a second driving member (16) provided on the connecting member and configured to provide a driving force for rotating the ripping work member.

5. The grader working apparatus of claim 1, wherein the connecting member comprises:

a rotating shaft (14) which is consistent with the extending direction of the shovel blade (21) and is rotatably connected with the mounting component; and

two connecting rod parts (15) are respectively positioned on two sides of the scraper knife (21) along the left-right direction, respective first ends of the two connecting rod parts (15) are respectively fixedly connected with two ends of the rotating shaft (14), and respective second ends of the two connecting rod parts (15) are respectively rotatably connected with two ends of the soil loosening operation part.

6. The grader working apparatus of claim 5, wherein the mounting member comprises:

a base plate (11) fixed to the blade mechanism (2); and

the supporting seats (13) are fixed on the base plate (11) and distributed on two sides of the central position of the rotating shaft (14) along the axial direction of the rotating shaft, and through holes are formed in the supporting seats (13);

the rotating shaft (14) sequentially penetrates through the through holes of the at least two supporting seats (13) and is rotatably arranged relative to the at least two supporting seats (13).

7. The grader working apparatus of claim 5, wherein the ripping work component comprises:

a roller shaft (17) having both ends rotatably connected to the second ends of the two link members (15), respectively; and

the cutter tooth groups are sequentially arranged along the axial direction of the roller shaft (17), and each cutter tooth group comprises a plurality of cutter teeth (18) arranged along the circumferential direction of the roller shaft (17).

8. The grader working apparatus according to claim 7, wherein the cutter teeth (18) comprise:

the tooth holder (181) is mounted on the side wall of the roll shaft (17), and a mounting groove (183) is formed in the tooth holder (181); and

a tooth tip portion (182) detachably provided in the mounting groove (183).

9. A grader working implement according to claim 5, characterized in that the link member (15) is telescopically arranged.

10. A grader working implement according to claim 9, wherein the link member (15) comprises:

the connecting rod comprises a connecting rod body (151), wherein a slideway cavity (1511) is arranged along the length direction of the connecting rod body, the slideway cavity (1511) is provided with an opening at the second end of the connecting rod body (151), and the first end of the connecting rod body (151) is fixed at the end part of the rotating shaft (14);

the first end of the sliding rod (153) is movably arranged in the slideway cavity (1511) and closes the opening, and the second end of the sliding rod (153) is rotatably connected with the end part of the soil loosening operation part; and

a third driving part (152) configured to provide a driving force for the movement of the sliding rod (153), wherein the third driving part (152) is disposed in the chute cavity (1511), a first end of the third driving part (152) is rotatably connected to the rotating shaft (14), and a second end of the third driving part (152) is connected to the first end of the sliding rod (153) through a ball hinge.

11. The grader working apparatus according to claim 10, wherein the ripping mechanism (1) further includes:

a second driving member (16) configured to provide a driving force to the rotation of the soil loosening operation member;

the second end of the sliding rod (153) is provided with a mounting hole (1531), and the second driving part (16) is embedded in the mounting hole (1531).

12. The grader working apparatus according to claim 9, wherein the ripping mechanism (1) further includes:

a first driving member (12) configured to provide a driving force to the swing of the connection member;

a third driving member (152) configured to provide a driving force to the extension and contraction of the link member (15);

an angle sensor configured to detect a rotation angle of the rotary shaft (14);

a displacement sensor configured to detect a telescopic displacement of the link member (15); and

and the control component is electrically connected with the angle sensor and the displacement sensor and is configured to control the action amount of the first driving component (12) and the third driving component (152) according to the preset soil penetration depth, the rotation angle of the rotating shaft (14) and the telescopic displacement of the connecting rod component (15) so as to adjust the soil penetration depth of the soil loosening working component.

13. A grader comprising the grader working apparatus according to any one of claims 1 to 12.

14. A control method of a grader working apparatus according to any one of claims 1 to 12, comprising:

determining the working condition of the scraper knife (21);

the connecting component can be selectively swung to the first position or the second position according to the working condition of the scraper knife (21).

15. The control method according to claim 14, wherein selectively swinging the connecting member to the first position or the second position according to the operation condition of the blade (21) includes:

when the resistance borne by the scraper knife (21) in the leveling operation is larger than the preset resistance, the connecting part is positioned at the first position;

when the resistance borne by the scraper knife (21) in the leveling operation is not more than the preset resistance, the connecting part is positioned at the second position; and/or

When the scraper knife (21) executes slope scraping operation, the connecting component is firstly positioned at the first position, and the scraper knife (21) is switched to the second position after being adjusted to the slope scraping posture.

16. The control method according to claim 14, characterized by further comprising:

17. The control method according to claim 16, wherein the connecting means includes: a rotating shaft (14) which is consistent with the extending direction of the shovel blade (21) and is rotatably connected with the mounting component; the two telescopic connecting rod parts (15) are respectively positioned on two sides of the scraper knife (21) along the left-right direction, the first ends of the two connecting rod parts (15) are respectively fixedly connected with two ends of the rotating shaft (14), and the second ends of the two connecting rod parts (15) are respectively rotatably connected with two ends of the soil loosening operation part; adjusting the depth of penetration of the soil loosening operation component comprises:

acquiring the preset soil penetration depth;

detecting a rotation angle of the rotating shaft (14) through an angle sensor;

detecting the telescopic displacement of the connecting rod component (15) through a displacement sensor;

and adjusting the action amount of the first driving component (12) and the third driving component (152) according to the preset soil penetration depth, the rotation angle of the rotating shaft (14) and the telescopic displacement of the connecting rod component (15) so as to adjust the soil penetration depth of the soil loosening working component.