Electric land grader with quick-change land scraper

Abstract

The present invention relates to the technical field of engineering machinery, and in particular to an electric motor grader with a quick-change leveling scraper, comprising a scraper control assembly applied to the electric motor grader, wherein a scraper switching assembly is mounted on the scraper control assembly, wherein the scraper control assembly comprises a traction frame mounted on the electric motor grader, wherein a connecting head is fixedly mounted at one end of the traction frame, a slewing mechanism is mounted at one end of the traction frame away from the connecting head, and an angle adjustment mechanism is fixedly mounted on the slewing mechanism, wherein the scraper switching assembly comprises a connecting plate detachably connected to the angle adjustment mechanism, and a mounting plate, wherein one end of the mounting plate is fixedly connected to the connecting plate, wherein two scrapers are both arranged at the bottom of the mounting plate, and at least two linkage assemblies are both transmission-connected to the two scrapers, wherein each linkage assembly is used for driving the two scrapers to complete the switching work, thereby solving the problem that the existing motor grader has a slow replacement speed after the scraper is damaged, thereby seriously affecting the construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to a quick-change electric grader with a leveling scraper. Background Art

[0002] A motor grader is an earth-moving machine that uses a scraper to level the ground. The scraper device of the motor grader is the main working device of the motor grader, which can achieve tasks such as leveling, trenching, and grooving. The working device of the motor grader consists of a scraper support frame, a traction frame, a slewing device, and a scraper body. The angle of the scraper body can be adjusted by connecting the hydraulic cylinder to the scraper support frame.

[0003] However, the existing land grader has only one scraper. During construction, if the scraper is damaged, the machine needs to be stopped for repair and the scraper needs to be disassembled and replaced. However, the speed of replacing the scraper is slow, which seriously affects the construction efficiency. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide an electric grader with a quick-change grader blade to solve the problem that the existing grader has a slow replacement speed after the blade is damaged, thereby seriously affecting the construction efficiency.

[0005] Based on the above purpose, the present invention provides a leveling scraper quick-change electric grader, including a scraper control assembly applied to the electric grader, the scraper control assembly is equipped with a scraper switching assembly, and the scraper control assembly includes:

[0006] A traction frame is mounted on the electric motor grader, one end of the traction frame is fixedly provided with a connector, and the connector is fixedly mounted on the electric motor grader;

[0007] A slewing mechanism is mounted on an end of the traction frame away from the connecting head;

[0008] An angle adjustment mechanism, fixedly mounted on the rotary mechanism;

[0009] The scraper switching assembly comprises:

[0010] A connecting plate, detachably connected to the angle adjustment mechanism;

[0011] A mounting plate, one end of which is fixedly connected to the connecting plate, and the mounting plate is located below the slewing mechanism;

[0012] Two scrapers, both arranged at the bottom of the mounting plate;

[0013] At least two linkage components are both connected to the two scrapers in a transmission manner, and each linkage component is used to drive the two scrapers to complete the switching work.

[0014] Preferably, the rotary mechanism comprises:

[0015] A revolving circle, rotatably connected and arranged at the bottom of the traction frame, and the revolving circle is transmission-connected to the angle adjustment mechanism;

[0016] A driving member is arranged on the traction frame, and the driving member is drivingly connected to the rotating circle.

[0017] Preferably, the driving member comprises:

[0018] An inner gear ring is fixed on the top of the rotating circle;

[0019] Two gears, both rotatably connected to the traction frame, each of which is meshed with the inner gear ring;

[0020] One end of the two first oil cylinders is hinged on the traction frame, and the other end is rotatably connected to a connecting arm. The free end of each connecting arm is fixedly connected to the shaft rod of the gear, and each first oil cylinder drives the gear to rotate in the same direction by telescopically controlling the connecting arm.

[0021] Preferably, a plurality of limit frames are fixedly provided inside the traction frame, wherein a part of the limit frames are sleeved on the rotating circle, and another part of the limit frames are sleeved on the inner gear ring, so as to improve the rotation stability of the rotating circle and the inner gear ring on the traction frame.

[0022] Preferably, the angle adjustment mechanism comprises:

[0023] Two hook-shaped support arms, one end of each of which is fixedly connected to the outer wall of the rotating circle, and the other end of each of which is hinged with an angle adjustment support frame, and each angle adjustment support frame is drivingly connected to the connecting plate;

[0024] Two second oil cylinders have one end hinged to a point of the hook-shaped support arm close to the rotating circle, and the other end hinged to the angle adjustment support frame. The angle adjustment support frame is driven by the second oil cylinder to adjust the angle so as to adjust the use angle of the scraper.

[0025] Preferably, two sliding blocks which are symmetrical up and down are fixedly provided on one side of the angle adjustment support frame close to the connecting plate, each of the sliding blocks is slidably connected to a slide rail, each of the slide rails is fixedly connected to the connecting plate, a third oil cylinder is provided between the angle adjustment support frame and the connecting plate, the third oil cylinder is fixedly provided on the angle adjustment support frame, and the telescopic rod of the third oil cylinder is fixedly connected to the connecting plate, and the connecting plate is driven by the third oil cylinder to move laterally with the cooperation of the sliding block and the slide rail.

[0026] Preferably, a shockproof gasket is provided between the slider and the slide rail, and the shockproof gasket is fixed on the slider.

[0027] Preferably, the linkage component comprises:

[0028] A fourth oil cylinder is fixedly mounted on the bottom of the mounting plate, and a telescopic rod of the fourth oil cylinder is fixedly connected to one of the scrapers;

[0029] A first telescopic member, one end of which is fixedly mounted on the bottom of the mounting plate, and the other end of which is fixedly connected to the other scraper;

[0030] A second telescopic member, both ends of which are hinged to the tops of the two scrapers respectively;

[0031] The bracket has one end fixed on the bottom of the mounting plate and the other end hinged to the middle of the second telescopic member.

[0032] The beneficial effects of the present invention are as follows: through the cooperation between the traction frame, the slewing mechanism and the angle adjustment mechanism, the angle adjustment and steering of the scraper are realized; the switching between the two scrapers is controlled by the linkage component, so that when one scraper is damaged during construction, there is no need to stop for maintenance; the working states of the two scrapers are switched through the operation of the linkage component to ensure smooth completion of the construction; after the construction is completed, overall maintenance and protection are carried out to ensure that the construction efficiency is not affected, thus solving the problem that the existing grader has a slow replacement speed after the scraper is damaged, thereby seriously affecting the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 2 For the embodiment of the present invention Figure 1 Enlarge the structural diagram at A;

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure of the bottom of the rotary mechanism according to an embodiment of the present invention;

[0037] Figure 4 It is a schematic diagram of the structure of the linkage component according to an embodiment of the present invention.

[0038] The markings in the figure are:

[0039] 1. Traction frame; 2. Connecting head; 3. Connecting plate; 4. Mounting plate; 5. Scraper; 6. Rotating circle; 7. Inner gear ring; 8. Gear; 9. First oil cylinder; 10. Connecting arm; 11. Limiting frame; 12. Hook-shaped support arm; 13. Angle adjustment support frame; 14. Second oil cylinder; 15. Sliding block; 16. Slide rail; 17. Third oil cylinder; 18. Shockproof gasket; 19. Fourth oil cylinder; 20. First telescopic member; 21. Second telescopic member; 22. Bracket. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0041] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] like Figures 1 to 4 As shown, a leveling scraper quick-change electric grader includes a scraper control assembly applied to the electric grader, the scraper control assembly is equipped with a scraper switching assembly, and the scraper control assembly includes:

[0043] A traction frame 1 is mounted on the electric motor grader, one end of the traction frame 1 is fixedly provided with a connector 2, and the connector 2 is fixedly mounted on the electric motor grader;

[0044] A slewing mechanism is installed at one end of the traction frame 1 away from the connecting head 2;

[0045] An angle adjustment mechanism, fixedly mounted on the rotary mechanism;

[0046] The scraper switching assembly comprises:

[0047] A connecting plate 3, detachably connected to the angle adjustment mechanism;

[0048] A mounting plate 4, one end of which is fixedly connected to the connecting plate 3, and the mounting plate 4 is located below the slewing mechanism;

[0049] Two scrapers 5 are both arranged at the bottom of the mounting plate 4;

[0050] At least two linkage components are both connected to the two scrapers 5 in a transmission manner, and each linkage component is used to drive the two scrapers 5 to complete the switching work.

[0051] For example, through the cooperation between the traction frame 1, the slewing mechanism and the angle adjustment mechanism, the angle adjustment and steering of the scraper 5 are realized, wherein the slewing mechanism drives the angle adjustment mechanism to rotate, the angle adjustment mechanism drives the connecting plate 3 to rotate, the connecting plate 3 drives the mounting plate 4 to rotate, the mounting plate 4 drives the linkage assembly to rotate, and the linkage assembly drives the scraper 5 to rotate to complete the left and right steering work of the scraper 5, the connecting plate 3 is driven up and down by the angle adjustment mechanism to adjust the working angle of the scraper 5, and the switching between the two scrapers 5 is controlled by the linkage assembly, so that when one scraper 5 is damaged during construction, there is no need to stop for maintenance. The working states of the two scrapers 5 can be switched through the linkage assembly to ensure that the construction is completed smoothly. After the construction is completed, overall maintenance and protection are carried out to ensure that the construction efficiency is not affected, thereby solving the problem that the existing grader has a slow replacement speed after the scraper 5 is damaged, thereby seriously affecting the construction efficiency.

[0052] As an optional embodiment, the slewing mechanism includes:

[0053] A rotating circle 6 is rotatably connected to the bottom of the traction frame 1, and the rotating circle 6 is transmission-connected to the angle adjustment mechanism;

[0054] The driving member is arranged on the traction frame 1 , and the driving member is transmission-connected with the rotating circle 6 .

[0055] As an optional embodiment, the driving member includes:

[0056] An inner gear ring 7 is fixed on the top of the rotating circle 6;

[0057] Two gears 8 are rotatably connected to the traction frame 1, and each of the gears 8 is meshed with the inner gear ring 7;

[0058] One end of the two first oil cylinders 9 is hinged on the traction frame 1, and the other end is rotatably connected to a connecting arm 10. The free end of each connecting arm 10 is fixedly connected to the shaft rod of the gear 8, and each first oil cylinder 9 drives the gear 8 to rotate in the same direction by telescopically controlling the connecting arm 10.

[0059] For example, the first oil cylinder 9 drives the connecting arm 10 to move, the connecting arm 10 drives the gear 8 to rotate, the gear 8 drives the inner gear ring 7 to rotate, the inner gear ring 7 drives the rotating circle 6 to rotate, the rotating circle 6 drives the angle adjustment mechanism to rotate, the angle adjustment mechanism drives the connecting plate 3 to rotate, the connecting plate 3 drives the mounting plate 4 to rotate, the mounting plate 4 drives the linkage assembly to rotate, and the linkage assembly drives the scraper 5 to rotate, so as to complete the steering movement of the scraper 5.

[0060] As an optional embodiment, a plurality of limit frames 11 are fixedly provided inside the traction frame 1, wherein a portion of the limit frames 11 is sleeved on the rotating circle 6, and another portion of the limit frames 11 is sleeved on the inner gear ring 7, so as to improve the stability of the rotation of the rotating circle 6 and the inner gear ring 7 on the traction frame 1.

[0061] As an optional embodiment, the angle adjustment mechanism includes:

[0062] Two hook-shaped support arms 12, one end of each of which is fixedly connected to the outer wall of the rotating circle 6, and the other end of each of which is hinged with an angle adjustment support frame 13, each angle adjustment support frame 13 is drivingly connected to the connecting plate 3;

[0063] The two second oil cylinders 14 are respectively hinged at one end to a portion of the hook-shaped support arm 12 close to the rotating circle 6 , and are respectively hinged at the other end to the angle adjustment support frame 13 . The angle adjustment support frame 13 is driven by the second oil cylinders 14 to adjust the angle so as to adjust the use angle of the scraper 5 .

[0064] For example, the second oil cylinder 14 drives the angle adjustment support frame 13 to rotate on the hook-shaped support arm 12 to adjust the angle of the connecting plate 3, thereby adjusting the working angle of the scraper 5.

[0065] As an optional embodiment, two sliding blocks 15 which are symmetrical up and down are fixedly provided on one side of the angle adjustment support frame 13 close to the connecting plate 3, each of the sliding blocks 15 is slidably connected to a sliding rail 16, each of the sliding rails 16 is fixedly connected to the connecting plate 3, a third oil cylinder 17 is provided between the angle adjustment support frame 13 and the connecting plate 3, the third oil cylinder 17 is fixedly provided on the angle adjustment support frame 13, and the telescopic rod of the third oil cylinder 17 is fixedly connected to the connecting plate 3, and the connecting plate 3 is driven by the third oil cylinder 17 to move laterally with the cooperation of the sliding block 15 and the sliding rail 16.

[0066] For example, by cooperating with the slide block 15 and the slide rail 16, the third oil cylinder 17 drives the connecting plate 3 to move sideways, so as to improve the application function of the grader.

[0067] As an optional embodiment, a shockproof gasket 18 is provided between the slider 15 and the slide rail 16 , and the shockproof gasket 18 is fixed on the slider 15 .

[0068] For example, the shockproof gasket 18 can be made of wear-resistant material to reduce friction with the slide rail 16 . At the same time, the shockproof gasket 18 is also used to reduce the impact of vibration generated by the scraper 5 during operation on the slide rail 16 and the slider 15 .

[0069] As an optional embodiment, the linkage component includes:

[0070] The fourth oil cylinder 19 is fixedly mounted on the bottom of the mounting plate 4, and the telescopic rod of the fourth oil cylinder 19 is fixedly connected to one of the scrapers 5;

[0071] A first telescopic member 20, one end of which is fixedly mounted on the bottom of the mounting plate 4, and the other end of which is fixedly connected to the other scraper 5;

[0072] The second telescopic member 21 has two ends hinged to the tops of the two scrapers 5 respectively;

[0073] The bracket 22 has one end fixed to the bottom of the mounting plate 4 and the other end hinged to the middle of the second telescopic member 21 .

[0074] For example, one scraper 5 is moved by the fourth oil cylinder 19 , and the scraper 5 drives another scraper 5 to move through the second telescopic member 21 . The other scraper 5 is limited by the first telescopic member 20 , thereby completing the switching between the two scrapers 5 .

[0075] The working principle of the present invention is: the traction frame 1 is driven to move by the grader, the traction frame 1 drives the rotating circle 6 to move, the rotating circle 6 drives the hook-shaped support arm 12 to move, the hook-shaped support arm 12 drives the angle adjustment support frame 13 to move, the angle adjustment support frame 13 drives the slider 15 to move, the slider 15 drives the slide rail 16 to move, the slide rail 16 drives the connecting plate 3 to move, the connecting plate 3 drives the mounting plate 4 to move, and the mounting plate 4 drives the scraper 5 to move through the fourth oil cylinder 19, the first telescopic member 20, the second telescopic member 21 and the bracket 22, so as to perform normal working operation. When the scraper 5 needs to turn, the connecting arm 10 is driven to move by the first oil cylinder 9, the connecting arm 10 drives the gear 8 to rotate, the gear 8 drives the inner gear ring 7 to rotate, the inner gear ring 7 drives the rotating circle 6 to rotate, the rotating circle 6 drives the hook-shaped support arm 12 to move left or right, the hook-shaped support arm 12 drives the angle adjustment support frame 13 to move left or right, the angle adjustment support frame 13 drives the slider 15 to move left or right, and the slider 15 drives the slider The rail 16 moves to the left or right, the slide rail 16 drives the connecting plate 3 to move to the left or right, and the connecting plate 3 drives the mounting plate 4 to move to the left or right, so that the scraper 5 moves to the left or right to complete the steering work. When the scraper 5 needs to adjust the angle, the second oil cylinder 14 drives the angle adjustment support frame 13 to move upward or downward, the angle adjustment support frame 13 drives the slider 15 to move upward or downward, the slider 15 drives the slide rail 16 to move upward or downward, the slide rail 16 drives the connecting plate 3 to move upward or downward, and the connecting plate 3 drives the mounting plate 4 to move upward or downward, so that the scraper 5 completes the angle adjustment work. After one scraper 5 is damaged, the fourth oil cylinder 19 drives one scraper 5 to move, and the scraper 5 drives another scraper 5 to move through the second telescopic member 21. The other scraper 5 is affected by the limiting position of the first telescopic member 20, thereby completing the switching work between the two scrapers 5, solving the problem that the existing grader has a slow replacement speed after the scraper 5 is damaged, thereby seriously affecting the construction efficiency.

[0076] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A quick-change electric motor grader with a flat scraper, comprising a scraper control assembly applied to the electric motor grader, wherein a scraper switching assembly is mounted on the scraper control assembly, characterized in that: The scraper control assembly comprises: A traction frame (1) is mounted on the electric motor grader, one end of the traction frame (1) is fixedly provided with a connector (2), and the connector (2) is fixedly mounted on the electric motor grader; A slewing mechanism, mounted on an end of the traction frame (1) away from the connecting head (2); An angle adjustment mechanism, fixedly mounted on the rotary mechanism; The scraper switching assembly comprises: A connecting plate (3) detachably connected to the angle adjustment mechanism; A mounting plate (4), one end of which is fixedly connected to the connecting plate (3), and the mounting plate (4) is located below the slewing mechanism; Two scrapers (5), both arranged at the bottom of the mounting plate (4); At least two linkage components are both drivingly connected to the two scrapers (5), and each linkage component is used to drive the two scrapers (5) to complete the switching operation; The linkage components include: A fourth oil cylinder (19) is fixedly mounted on the bottom of the mounting plate (4), and a telescopic rod of the fourth oil cylinder (19) is fixedly connected to one of the scrapers (5); A first telescopic member (20), one end of which is fixedly mounted on the bottom of the mounting plate (4) and the other end of which is fixedly connected to the other scraper (5); A second telescopic member (21), two ends of which are respectively hinged to the tops of the two scrapers (5); A bracket (22) has one end fixed to the bottom of the mounting plate (4) and the other end hinged to the middle of the second telescopic member (21).

2. The electric motor grader with quick-change leveling blade according to claim 1, characterized in that: The rotary mechanism comprises: A rotating circle (6) is rotatably connected and arranged at the bottom of the traction frame (1), and the rotating circle (6) is drivingly connected to the angle adjustment mechanism; A driving member is arranged on the traction frame (1), and the driving member is drivingly connected to the rotating circle (6).

3. The electric motor grader with quick-change leveling blade according to claim 2, characterized in that: The driving member comprises: An inner gear ring (7) is fixedly mounted on the top of the rotating circle (6); Two gears (8) are rotatably connected to the traction frame (1), and each of the gears (8) is meshed with the inner gear ring (7); Two first oil cylinders (9) have one end hinged on the traction frame (1) and the other end rotatably connected to a connecting arm (10), the free end of each connecting arm (10) being fixedly connected to the shaft of the gear (8), and each first oil cylinder (9) drives the gear (8) to rotate in the same direction by telescoping the connecting arm (10).

4. The electric motor grader with a quick-change leveling blade according to claim 3, characterized in that: A plurality of limit frames (11) are fixedly arranged inside the traction frame (1), wherein a portion of the limit frames (11) are sleeved on the rotating circle (6), and another portion of the limit frames (11) are sleeved on the inner gear ring (7), so as to improve the stability of the rotation of the rotating circle (6) and the inner gear ring (7) on the traction frame (1).

5. The electric motor grader with quick-change leveling blade according to claim 2, characterized in that: The angle adjustment mechanism comprises: Two hook-shaped support arms (12), one end of each of which is fixedly connected to the outer wall of the rotating circle (6), and the other end of each of which is hingedly provided with an angle adjustment support frame (13), and each angle adjustment support frame (13) is drivingly connected to the connecting plate (3); Two second oil cylinders (14) have one end each hinged to a point of the hook-shaped support arm (12) close to the rotating circle (6), and the other end each hinged to the angle adjustment support frame (13). The angle adjustment support frame (13) is driven by the second oil cylinders (14) to adjust the angle so as to adjust the use angle of the scraper (5).

6. The electric motor grader with quick-change leveling blade according to claim 5, characterized in that: Two vertically symmetrical sliding blocks (15) are fixedly provided on one side of the angle adjustment support frame (13) close to the connecting plate (3); each of the sliding blocks (15) is slidably connected to a sliding rail (16); each of the sliding rails (16) is fixedly connected to the connecting plate (3); a third oil cylinder (17) is provided between the angle adjustment support frame (13) and the connecting plate (3); the third oil cylinder (17) is fixedly provided on the angle adjustment support frame (13); and a telescopic rod of the third oil cylinder (17) is fixedly connected to the connecting plate (3); the connecting plate (3) is driven by the third oil cylinder (17) to move sideways in cooperation with the sliding blocks (15) and the sliding rails (16).

7. The electric motor grader with a quick-change leveling blade according to claim 6, characterized in that: An anti-vibration gasket (18) is provided between the slide block (15) and the slide rail (16), and the anti-vibration gasket (18) is fixedly mounted on the slide block (15).

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