CN212153496U - A grader scraping working device based on rotary translation mechanism - Google Patents

Abstract

A grader scraping working device based on a rotary translation mechanism, comprising a frame, a first rotary table, a translation mechanism, a second rotary table, and a blade mechanism, wherein the first rotary table is installed on the frame through a rotating pair It can be rotated relative to the frame. The translation mechanism is a plane double-link four-bar mechanism, and forms a parallelogram structure, including a longitudinal beam, a first link, a second link, and a moving platform. The longitudinal beam is fixedly installed on the On the first rotary table, both ends of the first connecting rod and the second connecting rod are connected with the longitudinal beam and the moving platform, and under the driving action of the first linear drive, the moving platform can translate relative to the first rotating platform; The second rotary table is installed on the moving platform through the rotating pair, and can rotate relative to the moving platform; the blade mechanism can realize the lateral movement and rotation of the blade; the scraping working device of the grader can realize six degrees of freedom of the blade during operation Compared with the existing motor grader, it not only has good flexibility and low degree of motion coupling, but also does not contain spherical joints, so it has better rigidity and stability.

Description

A grader scraping working device based on rotary translation mechanism

technical field

The utility model relates to a grader in the field of shovel transportation machinery, in particular to a grader scraping working device based on a rotary translation mechanism.

Background technique

Motor grader is a kind of shovel and transport machinery used for large-area land leveling or shaping, slope filling or cutting and leveling, and ice-breaking and snow-removing operations in winter. Special machinery for earthwork shaping construction. Among them, the scraping working device is the most important working device of the grader. It is mainly composed of the front frame, the swing frame, the traction frame and the blade device. In order to meet the requirements of land leveling or shaping, the scraping working device needs to accurately realize the six degrees of freedom of the blade. Spatial movement, that is, blade lift, blade tilt, blade rotation, blade side movement (the blade extends left and right relative to the frame), blade straight movement (in the direction of machine travel), blade cutting angle change, The blade moves sideways with the turning circle (that is, the draw frame is drawn out), and the straight movement of the blade is realized by mechanical straight-line driving, and the change of the cutting angle of the blade is realized manually or by a hydraulic cylinder.

Although the existing motor grader has been in existence for decades, its basic structure has not changed greatly, so there are some inherent problems. Precise control of the inclination angle; the traction frame is divided into A-type structure and T-shaped structure, but no matter which structure, in order to realize the extraction of the traction frame, the traction frame and the front frame are connected by a hinged ball joint, and the ball joint not only costs high and poor reliability. In order to realize blade rotation, a large turntable is installed on the traction frame, which is heavy and costly; the existing scraping working device adopts a parallel space mechanism, which has a high degree of mechanism coupling and a complex blade control system, which is difficult to achieve. High-precision motion control; although the existing scraping working device adopts a parallel space mechanism to ensure the flexibility of the scraper, the movement space is small, especially the draw-out distance of the traction frame is small, and the lifting height of the blade after the lead-out is small, which limits the working space of the blade. The blade lifting process cannot achieve translation and so on. This is a thorny problem that has not been solved in the development of grader technology for decades, which restricts the further improvement of leveling or shaping construction technology to a certain extent.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a grader scraping working device based on the rotary translation mechanism, which overcomes the high coupling degree of the existing grader scraping working device, the difficulty of high-precision motion control, the poor flexibility of the blade, and the small movement space. It can meet the requirements of high precision, high flexibility and large working space for land leveling or shaping operations.

A grader scraping working device based on a rotary translation mechanism, comprising a frame, a first rotary table, a translation mechanism, a second rotary table, and a blade mechanism, wherein one end of the frame is connected with the front frame, and the other end Connected with the rear frame, the first turntable is mounted on the frame through the first rotating pair, and is driven by a first driving element, the first driving element is a hydraulic motor or an electric motor, under its driving action, the first The rotary table can be rotated relative to the frame, and with the translation mechanism, the blade mechanism can be drawn out. When the existing motor grader relies on the swing frame to realize the side movement of the blade with the rotary ring (that is, the draw frame is drawn out), the blade movement is a complex space movement. The first rotary table and the translation mechanism can not only lead out the blade mechanism at a large distance, but also have simple operation and control, and cooperate with the second rotary table to realize the translation and precise extraction of the blade mechanism. In addition, compared with the existing method in which the traction frame of the grader is connected to the frame through a ball joint, the scraper working device of the grader based on the rotary translation mechanism uses the first rotary table to connect with the frame, which greatly improves the structural rigidity and The anti-load capacity improves the stability of the blade mechanism when leveling or shaping.

The translation mechanism is a plane mechanism, including a longitudinal beam, a first connecting rod, a second connecting rod, and a moving platform. The longitudinal beam, the first connecting rod, the second connecting rod, and the moving platform form a plane two-link four-bar. The longitudinal beam is fixedly installed on the first turntable, one end of the first connecting rod is connected to the longitudinal beam through a second rotating pair, the other end is connected to the moving platform through a third rotating pair, and one end of the second connecting rod is connected to the moving platform through a third rotating pair. The fourth rotating pair is connected to the longitudinal beam, and the other end is connected to the moving platform through the fifth rotating pair; the hole center distance between the second rotating pair and the third rotating pair is the same as the fourth rotating pair and the fifth rotating pair The center-to-center distance between the holes is the same, and the center-to-hole distance between the fourth rotating pair and the second rotating pair is the same as the center-to-hole distance between the fifth rotating pair and the third rotating pair, so the longitudinal beam , The first connecting rod, the second connecting rod, and the moving platform form a parallelogram structure; the hole center connection line between the second rotating pair and the fourth rotating pair is parallel to the rotation axis of the first rotating pair, so when the translation mechanism moves When , the hole center line between the fifth rotating pair and the third rotating pair is always parallel to the rotation axis of the first rotating pair, that is, the moving platform always translates relative to the first rotating platform; the second connecting rod is connected by the first rotating pair. Driven by a linear drive, one end of the first linear drive is connected with the first turntable through the sixth rotating pair, and the other end is connected with the second connecting rod through the seventh rotating pair, and the first linear drive is a hydraulic cylinder or Servo electric cylinder.

In practical engineering applications, when this new type of motor grader is placed on a level ground, the axis of rotation of the first turntable is perpendicular to the ground, and when the first linear drive extends and retracts, it drives the second link to go up and down around the fourth rotating pair Swing, the moving platform will translate up and down relative to the ground and the first rotary table under the cooperation of the first link. The scraper working device can realize the translation of the blade mechanism in lifting, tilting, side shifting and other actions. Compared with the complex coupling motion control of the existing grader blade, it effectively reduces the difficulty of blade control and better satisfies the Construction requirements: Compared with the existing grader scraping working device which relies on complex coupling space motion to realize blade movement, the dynamic performance of this kind of grader scraping working device with translation mechanism, such as movement accuracy, controllability and stability Better, it can better meet the high-quality leveling or shaping construction technical requirements of the blade mechanism.

The second rotary table is connected with the moving platform through the eighth rotation pair, and the second rotary table is driven by the second driving element. The leveling operation requires that the rotation axis of the eighth rotation pair is parallel to the rotation axis of the first rotation pair, and the second driving element is a hydraulic motor or an electric motor.

The blade mechanism includes a support plate, a first sliding plate, a second sliding plate, and a blade. The supporting plate is connected to the second rotary table through a ninth rotation pair, and the rotation axis of the ninth rotation pair is connected to the axis of the eighth rotation pair. The axis of rotation is vertical, the support plate is driven by a third drive element, and the third drive element is a hydraulic motor or an electric motor. Under its driving action, the support plate can rotate relative to the second turntable, thereby realizing the inclination of the blade mechanism. To meet the needs of slope leveling and shaping operations, compared with the existing graders relying on complex coupling motion or manually adjusting the blade inclination angle to achieve the blade slope operation, this kind of grader scraping working device based on the rotary translation mechanism not only shovels The inclination angle of the blade is easy to control, and with the cooperation of the first rotary table, the translation mechanism and the second rotary table, the blade mechanism can realize translation during the slope operation, so that the blade can better meet the slope leveling and shaping need.

The first sliding plate is connected with the support plate through the first moving pair, and the first sliding plate is driven by the second linear driver. One end of the second linear driver is fixed on the supporting plate, and the other end is fixed on the first sliding plate. Under the driving action of the linear drive, the first sliding plate can slide relative to the support plate, thereby realizing the side extension of the blade relative to the support plate to one side; the second linear drive is a hydraulic cylinder or a servo electric cylinder.

The second sliding plate is connected with the first sliding plate through the second moving pair, and the second sliding plate is driven by a third linear driver. One end of the third linear driver is fixed on the first sliding plate, and the other end is fixed on the second sliding plate. Under the driving action of the third linear driver, the second sliding plate can slide relative to the first sliding plate, thereby realizing the side extension of the blade relative to the first sliding plate to the other side; the third linear driver is a hydraulic cylinder or a servo electric cylinder; The second sliding plate is connected with the blade through the tenth rotation pair, the blade is driven by a fourth linear driver, one end of the fourth linear driver is connected with the second sliding plate through the eleventh rotation pair, and the other end is connected through the twelfth rotation pair. The rotating pair is connected with the blade, and the blade can rotate relative to the second sliding plate under the driving action of the fourth linear driver, thereby realizing the change of the cutting angle of the blade; the fourth linear driver is a hydraulic cylinder or a servo electric cylinder.

Compared with the existing grader scraping working device which uses a single linear drive to complete the left and right movement of the blade, this kind of grader scraping working device based on the rotary translation mechanism adopts double sliding plates and double linear drives to complete the lateral movement of the blade. The lateral movement of the blade to each side is driven by an independent linear drive. The blade can be driven by the first sliding plate and the second sliding plate, as well as the second linear driver and the third linear driver. Long-distance sideshift (blade extends to the left and right of the frame).

Under the cooperative action of the frame, the first rotary table, the translation mechanism, the second rotary table and the blade mechanism, the blade can not only realize the lifting movement and tilting of the blade, The translation of motion, rotary motion, lead-out motion, etc., large-distance side movement of the blade (the blade extends left and right relative to the frame), straight movement of the blade (along the direction of mechanical travel), and change of the cutting angle of the blade, etc. The degree of freedom is controllable and adjustable, and compared with the complex spatial coupling motion of the existing grader scraping working device, it has the characteristics of good flexibility, low motion coupling, low control difficulty, large action space, and good support rigidity and stability. It can better meet the leveling and shaping operations with high construction technical requirements.

Compared with the prior art, the utility model has the following beneficial effects:

1) When the existing grader relies on the swing frame to realize the lateral movement of the blade with the turning circle (that is, the draw frame is drawn out), the movement of the blade is a complex space movement, and the first step of this kind of grader scraping working device based on the rotary translation mechanism A rotary table with a translation mechanism can not only lead out the blade mechanism at a large distance, but also has simple operation and control, and cooperate with the second rotary table to realize the translation of the blade mechanism and precise extraction control.

2) Compared with the way in which the traction frame of the existing grader is connected to the frame through a ball joint, this kind of grader scraping working device based on the rotary translation mechanism uses the first rotary table to connect with the frame, which greatly improves the structural rigidity and The anti-load capacity improves the stability of the blade mechanism when leveling or shaping.

3) This kind of grader scraping working device based on the rotary translation mechanism can realize the translation of the blade mechanism in lifting, tilting, side shifting and other actions. Compared with the complex coupling motion control of the existing grader blade, it is effective. The control difficulty of the blade is reduced, and the construction requirements are better met; compared with the existing grader scraping working device which relies on complex coupling space motion to realize the blade movement, the movement of the scraping working device of the grader using the translation mechanism is accurate. It has better dynamic performance such as flexibility, controllability and stability, and can better meet the high-quality leveling or shaping construction technical requirements of the blade mechanism.

4) Compared with the existing graders relying on complex coupling motion or manually adjusting the blade inclination angle to realize the blade slope operation, this kind of grader scraping working device based on the rotary translation mechanism is not only easy to control the blade inclination angle, but also With the cooperation of the first rotary table, the translation mechanism and the second rotary table, the blade mechanism can achieve translation during the slope operation, so that the blade can better meet the needs of slope leveling and shaping.

5) The blade of this kind of grader scraping working device based on the rotary translation mechanism can not only realize the translation of blade lifting, tilting, rotary motion, extraction motion, etc. Six-degree-of-freedom controllable adjustments such as left and right extension relative to the frame), straight movement of the scraper (along the direction of mechanical travel), and change of the cutting angle of the blade, and compared with the complex spatial coupling motion of the existing grader scraping working device It has the characteristics of good flexibility, low motion coupling, low control difficulty, large action space, good support rigidity and stability, etc., which can better meet the leveling and shaping operations with high construction technical requirements.

Description of drawings

FIG. 1 is a front view of a grader scraping working device based on a rotary translation mechanism according to the utility model.

FIG. 2 is a perspective view of a grader scraping working device based on a rotary translation mechanism according to the utility model.

3 is a schematic diagram of a grader scraping working device based on a rotary translation mechanism according to the utility model.

FIG. 4 is a schematic diagram of a blade mechanism of a grader scraping working device based on a rotary translation mechanism according to the utility model.

FIG. 5 is a schematic drawing of the blade mechanism of a grader scraping working device based on a rotary translation mechanism according to the utility model.

6 is a schematic diagram of the rotation of a blade mechanism of a grader scraping working device based on a rotary translation mechanism according to the utility model.

7 is a schematic diagram of the translational rise of a blade mechanism of a grader scraping working device based on a rotary translation mechanism according to the utility model.

8 is a top view of a grader scraping working device based on a rotary translation mechanism according to the utility model.

9 is a schematic diagram of the second rotary table and blade mechanism of a grader scraping working device based on a rotary translation mechanism according to the present invention.

10 is a partial schematic diagram of a blade mechanism of a grader scraping working device based on a rotary translation mechanism according to the present invention.

11 is a schematic diagram of a blade of a grader scraping working device based on a rotary translation mechanism according to the present invention.

Fig. 12 is a schematic diagram of a blade inclination of a grader scraping working device based on a rotary translation mechanism according to the utility model.

FIG. 13 is one of the schematic diagrams of the blade side movement of a grader scraping working device based on a rotary translation mechanism according to the present invention.

Fig. 14 is the second schematic diagram of the blade side movement of a grader scraping working device based on a rotary translation mechanism according to the utility model.

FIG. 15 is the third schematic diagram of the blade side movement of a grader scraping working device based on a rotary translation mechanism according to the present utility model.

FIG. 16 is the fourth schematic diagram of the blade side movement of a grader scraping working device based on a rotary translation mechanism according to the present utility model.

17 is a schematic diagram of a support plate of a grader scraping working device based on a rotary translation mechanism according to the present invention.

18 is a schematic diagram of a support plate and a first sliding plate of a grader scraping working device based on a rotary translation mechanism according to the present invention.

Fig. 19 is a schematic diagram of the first sliding plate of a grader scraping working device based on a rotary translation mechanism according to the present invention.

FIG. 20 is a schematic diagram of the second sliding plate of a grader scraping working device based on a rotary translation mechanism according to the present invention.

Detailed ways

The technical solutions of the present utility model will be further described below through the accompanying drawings and embodiments.

1, 2, 3, and 4, a grader scraping work device based on a rotary translation mechanism includes a frame 1, a first rotary table 3, a translation mechanism, a second rotary table 16, a shovel Knife mechanism, one end of the frame 1 is connected with the front frame 22, and the other end is connected with the rear frame 21, the first turntable 3 is installed on the frame 1 through the first rotating pair 2, and is driven by the first driving element. 40 drive, the first drive element 40 is a hydraulic motor or an electric motor. Under its driving action, the first turntable 3 can rotate relative to the frame 1, and the blade mechanism can be drawn out with the translation mechanism.

Comparing with Figure 2, Figure 5, and Figure 6, when the existing motor grader relies on the swing frame to realize the lateral movement of the blade with the slewing ring (that is, the traction frame is drawn out), the movement of the blade is a complex spatial movement, and the first rotary table 3 cooperates with the translation The mechanism can not only lead out the blade mechanism at a large distance, but also has simple operation and control, and cooperates with the second rotary table 16 to realize the translation of the blade mechanism and the precise extraction control. In addition, compared with the existing method in which the traction frame of the grader is connected to the frame through a ball joint, the scraper working device of the grader based on the rotary translation mechanism uses the first rotary table to connect with the frame, which greatly improves the structural rigidity and The anti-load capacity improves the stability of the blade mechanism when leveling or shaping.

1, 2, and 3, the translation mechanism is a plane mechanism, including a longitudinal beam 4, a first connecting rod 7, a second connecting rod 8, and a moving platform 14. The longitudinal beam 4, the first connecting rod 7. The second connecting rod 8 and the moving platform 14 form a plane double-link four-bar mechanism, the longitudinal beam 4 is fixedly installed on the first turntable 3, and one end of the first connecting rod 7 is connected to the longitudinal beam through the second rotating pair 6 4 is connected, the other end is connected with the moving platform 14 through the third rotating pair 13, one end of the second connecting rod is connected with the longitudinal beam 4 through the fourth rotating pair 5, and the other end is connected with the moving platform 14 through the fifth rotating pair 12; The hole center distance between the second rotating pair 6 and the third rotating pair 13 is the same as the hole center distance between the fourth rotating pair 5 and the fifth rotating pair 12. The center-to-hole distance between the two rotating pairs 6 is equal to the center-to-hole distance between the fifth rotating pair 12 and the third rotating pair 13, so the longitudinal beam 4, the first connecting rod 7 and the second connecting rod 8 , The moving platform 14 forms a parallelogram structure; the hole center line between the second rotating pair 6 and the fourth rotating pair 5 is parallel to the rotation axis of the first rotating pair 2, so when the translation mechanism moves, the fifth rotating pair The line connecting the holes between 12 and the third rotating pair 13 is always parallel to the rotation axis of the first rotating pair 2, that is, the moving platform 14 always translates relative to the first rotating platform 3; The linear drive 9 is driven. One end of the first linear drive 9 is connected to the first turntable 3 through the sixth rotating pair 10 , and the other end is connected to the second connecting rod 8 through the seventh rotating pair 11 . The line driver 9 is a hydraulic cylinder or a servo electric cylinder.

1, 3, 7, and 8, in practical engineering applications, when this new type of motor grader is placed on a level ground, the rotation axis of the first turntable 3 is perpendicular to the ground, and when the first linear drive 9 When telescopic, the second connecting rod 8 is driven to swing up and down around the fourth rotating pair 5, and the moving platform 14 will move up and down relative to the ground and the first turntable 3 under the cooperation of the first connecting rod 7. On the first turntable 3 With the cooperation of the second rotary table 16, the translation mechanism and the second rotary table 16, this kind of grader scraping working device based on the rotary translation mechanism can realize the translation of the blade mechanism in lifting, tilting, side shifting and other actions. Compared with the existing The complex coupling motion control of the grader blade effectively reduces the difficulty of blade control and better meets the construction requirements; compared with the existing grader scraping working device, it relies on complex coupling space movement to realize blade movement, and adopts a translation mechanism The dynamic performance such as movement accuracy, controllability and stability of this kind of grader scraping working device is better, and it can better meet the high-quality leveling or shaping construction technical requirements of the blade mechanism.

1 , 5 , 6 , and 9 , the second turntable 16 is connected to the moving platform 14 through the eighth rotation pair 15 , and the second turntable 16 is driven by the second driving element 17 . Down, the second turntable 16 rotates relative to the moving platform 14 to meet the leveling or leveling operation needs of the blade mechanism. The rotation axis of the eighth rotation pair 15 is parallel to the rotation axis of the first rotation pair 2 , and the second driving element 17 is a hydraulic motor or an electric motor.

1 , 4 , 9 , 10 and 11 , the blade mechanism includes a support plate 24 , a first sliding plate 25 , a second sliding plate 26 , and a blade 19 , and the supporting plate 24 passes through the ninth rotating pair 23 is connected to the second rotary table 16, the rotary axis of the ninth rotary pair 23 is perpendicular to the rotary axis of the eighth rotary pair 15, the support plate 24 is driven by the third driving element 18, and the third driving element 18 is Under the driving action of the hydraulic motor or motor, the support plate 24 can be rotated relative to the second turntable 16 under its driving action, thereby realizing the inclination of the blade mechanism to meet the needs of slope leveling and shaping operations. Compared with the existing graders relying on complex coupling motion or manually adjusting the inclination angle of the blade to achieve the blade slope operation, this kind of grader scraping working device based on the rotary translation mechanism is not only easy to control the inclination angle of the blade 19, but also in With the cooperation of the first rotary table 3, the translation mechanism and the second rotary table 16, the blade mechanism can achieve translational movement during the slope operation, so that the blade 19 can better meet the needs of slope leveling and shaping.

4 , 9 , 10 , 13 and 14 , the first sliding plate 25 is connected to the support plate 24 through the first moving pair 30 , the first sliding plate 25 is driven by the second linear driver 32 , and the second sliding plate 25 is driven by the second linear driver 32 . One end of the linear driver 32 is fixed on the support plate 24, and the other end is fixed on the first sliding plate 25. Under the driving action of the second linear driver 32, the first sliding plate 25 can slide relative to the supporting plate 24, thereby realizing the relative and supporting of the blade 19. The plate 24 extends to one side; the second linear actuator 32 is a hydraulic cylinder or a servo electric cylinder.

4 , 9 , 10 , 15 and 16 , the second sliding plate 26 is connected to the first sliding plate 25 through the second moving pair 31 , the second sliding plate 26 is driven by the third linear driver 41 , and the first sliding plate 26 is driven by the third linear driver 41 . One end of the three linear drives 41 is fixed on the first sliding plate 25, and the other end is fixed on the second sliding plate 26. Under the driving action of the third linear driver 41, the second sliding plate 26 can slide relative to the first sliding plate 25, thereby realizing the blade 19 Relative to the first sliding plate 25 extending to the other side; the third linear driver 41 is a hydraulic cylinder or a servo electric cylinder; the second sliding plate 26 is connected to the blade 19 through the tenth rotation pair 27 .

The blade mechanism will now be further described and explained through a specific embodiment:

4 , 9 and 10 , the blade mechanism includes a support plate 24 , a first slide plate 25 , a second slide plate 26 , and a blade 19 . One side of the support plate 24 passes through the ninth rotation pair 23 and the second turntable. 16 connection, a first guide rail 33 is installed on the other side of the support plate 24, the rotation axis of the ninth rotation pair 23 is perpendicular to the rotation axis of the eighth rotation pair 15, and the support plate 24 is driven by the third driving element 18. Under its driving action, referring to Fig. 5, Fig. 6 and Fig. 12, the support plate 24 can rotate relative to the second turntable 16, thereby realizing the inclination of the blade mechanism to meet the needs of slope leveling and shaping operations, which is more dependent on the existing motor graders. The complex coupling motion or manual adjustment of the inclination angle of the blade can realize the operation of the blade slope. This kind of grader scraping working device based on the rotary translation mechanism is not only easy to control the inclination angle of the blade 19, but also in the first rotary table 3, the leveling device. With the cooperation of the moving mechanism and the second rotary table 16, the blade mechanism can realize translation during the slope operation, so that the blade 19 can better meet the needs of slope leveling and shaping;

4 , 9 , 17 , 18 and 19 , one side of the first sliding plate 25 is connected to the first guide rail 33 of the support plate 24 through the first moving pair 30 , and the other side of the first sliding plate 25 is A second guide rail 38 is installed, the first sliding plate 25 is driven by a second linear actuator 32, the second linear actuator 32 is a hydraulic cylinder or a servo electric cylinder, and the cylinder end 34 of the second linear actuator 32 is fixed on the support plate 24, the push rod end 35 of the second linear actuator 32 is fixed on the first sliding plate 25, and under the driving action of the second linear actuator 32, the first sliding plate 25 can slide relative to the supporting plate 24, and then The lateral extension of the blade 19 to one side relative to the support plate 24 is realized.

4 , 9 , 18 and 20 , one side of the second sliding plate 26 is connected to the first sliding plate 25 through the second moving pair 31 , and the other side is connected to the blade 19 through the tenth rotating pair 27 , so The second sliding plate 26 is driven by a third linear actuator 41, the third linear actuator 41 is a hydraulic cylinder or a servo electric cylinder, and the cylinder end 37 of the third linear actuator 41 is fixed on the first sliding plate 25, and the third linear actuator 41 is fixed on the first sliding plate 25. The push rod end 36 of the linear actuator 41 is fixed on the second sliding plate 26. Under the driving action of the third linear actuator 41, the second sliding plate 26 can slide relative to the first sliding plate 25 with reference to FIGS. 15 and 16, thereby realizing the blade 19 Opposite to the first sliding plate 25, it extends to the other side.

Compared with the existing grader scraping working device which uses a single linear drive to complete the left and right movement of the blade, this kind of grader scraping working device based on the rotary translation mechanism adopts double sliding plates and double linear drives to complete the lateral movement of the blade. The sideward movement of the blade to each side is driven by an independent linear drive. , the blade 19 can achieve long-distance lateral movement (the blade 19 extends left and right relative to the frame 1).

9 , 10 and 11 , the blade 19 is driven by the fourth linear driver 28 , one end of the fourth linear driver 28 is connected to the second sliding plate 26 through the eleventh rotation pair 42 , and the other end is connected to the second sliding plate 26 through the eleventh rotation pair 42 . The second rotating pair 29 is connected to the blade 19, and the blade 19 can rotate relative to the second sliding plate 26 under the driving action of the fourth linear driver 28, with reference to FIG. 12, thereby realizing the change of the cutting angle of the blade 19; the fourth The linear drive 28 is a hydraulic cylinder or a servo electric cylinder.

1, 2, 5, 6, 7, 12, 14, 16, this kind of grader scraping working device based on the rotary translation mechanism is in the frame 1, the first rotary table 3, Under the cooperation of the translation mechanism, the second rotary table 16 and the blade mechanism, the blade 19 can not only realize the translation of the blade lifting, tilting, rotating, and extracting movements, but also can move the blade sideways over a large distance (shovel). The six-degree-of-freedom controllable adjustment of the blade relative to the left and right sides of the frame), the straight movement of the scraper (along the direction of mechanical travel), and the change of the cutting angle of the blade, and the complex spatial coupling of the existing grader scraping working device Movement has the characteristics of good flexibility, low movement coupling, low control difficulty, large action space, good support rigidity and stability, etc., which can better meet the leveling and shaping operations with high construction technical requirements.

Except for the technical features described in the specification, they are all known technologies by those skilled in the art.

Claims (3)

1. A grader scraping working device based on a rotary translation mechanism is characterized in that: comprising a frame, a first rotary table, a translation mechanism, a second rotary table, and a blade mechanism, and the first rotary table passes through the The first rotating pair is mounted on the frame and driven by the first driving element, The translation mechanism is a plane mechanism, including a longitudinal beam, a first connecting rod, a second connecting rod, and a moving platform. The longitudinal beam, the first connecting rod, the second connecting rod, and the moving platform form a plane two-link four-bar. The longitudinal beam is fixedly installed on the first turntable, one end of the first connecting rod is connected to the longitudinal beam through a second rotating pair, the other end is connected to the moving platform through a third rotating pair, and one end of the second connecting rod is connected to the moving platform through a third rotating pair. The fourth rotating pair is connected to the longitudinal beam, and the other end is connected to the moving platform through the fifth rotating pair; the hole center distance between the second rotating pair and the third rotating pair is the same as the fourth rotating pair and the fifth rotating pair The center-to-center distance between the holes is the same, and the center-to-hole distance between the fourth rotating pair and the second rotating pair is equal to the center-to-hole distance between the fifth rotating pair and the third rotating pair; the second rotating pair The hole center line between the pair and the fourth rotating pair is parallel to the rotation axis of the first rotating pair; the second connecting rod is driven by the first linear driver, and one end of the first linear driver is connected to the first rotating pair through the sixth rotating pair. A rotary table is connected, and the other end is connected with the second connecting rod through the seventh rotating pair; The second turntable is connected with the moving platform through an eighth rotation pair, the second turntable is driven by a second driving element, and the rotation axis of the eighth rotation pair is parallel to the rotation axis of the first rotation pair. 2. a kind of grader scraping working device based on rotary translation mechanism according to claim 1, is characterized in that: The blade mechanism includes a support plate, a first sliding plate, a second sliding plate, and a blade. The supporting plate is connected to the second rotary table through a ninth rotation pair, and the rotation axis of the ninth rotation pair is connected to the axis of the eighth rotation pair. The axis of rotation is vertical, the support plate is driven by a third drive element, The first sliding plate is connected with the supporting plate through the first moving pair, the first sliding plate is driven by a second linear driver, one end of the second linear driver is fixed on the supporting plate, and the other end is fixed on the first sliding plate; The second sliding plate is connected with the first sliding plate through the second moving pair, the second sliding plate is driven by a third linear driver, one end of the third linear driver is fixed on the first sliding plate, and the other end is fixed on the second sliding plate; The second sliding plate is connected with the blade through the tenth rotation pair, the blade is driven by a fourth linear driver, one end of the fourth linear driver is connected with the second sliding plate through the eleventh rotation pair, and the other end is connected through the tenth rotation pair. The second rotating pair is connected with the blade. 3. A grader scraping working device based on a rotary translation mechanism according to claim 1, wherein one end of the frame is connected to the front frame, the other end is connected to the rear frame, and the first A driving element, a second driving element, and a third driving element are all hydraulic motors or motors, and the first linear actuator, the second linear actuator, the third linear actuator, and the fourth linear actuator are hydraulic cylinders or servo electric cylinders.

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