Short-tooth rake for loading machine

Abstract

The utility model discloses a short tooth rake for a loading machine, which comprises a cross beam, two ends of the cross beam are connected with end part frames, a mounting frame is connected between the end part frames and below the cross beam, the front end of the mounting frame is connected with a front baffle plate, and the edge of the front baffle plate is connected with a pressing plate through a bolt. A silica gel curtain is arranged between the pressing plate and the front baffle and is pressed through the pressing plate, a second connecting piece is connected to the end face of the same side of the mounting frame and the cross beam, the second connecting piece is hinged to a first connecting piece through a rotating shaft, and a hydraulic cylinder is hinged to the edge of one side of the first connecting piece through a rotating shaft; the length of the rake teeth can be adjusted without replacing the driving shaft, various operation requirements are met, the applicability is wide, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loader accessories, in particular to a short-toothed harrow used for a loader. Background Art

[0002] A loader is a widely used engineering machinery that mainly relies on its attached bucket to shovel, load and unload, and short-distance transport of bulk materials such as soil, stone, and grain. It has good maneuverability, high operating efficiency, and easy operation, and is suitable for a variety of working environments and needs.

[0003] When loosening the soil and breaking the surface of the hard ground or turning over the soil and weeding the grassland, most people load a bucket with rake teeth on the loader to operate the ground, or use a special loosening machine. The use of special machinery requires preparing other equipment at the same time as the loader, which will increase the equipment cost and increase the occupied working space, which is not conducive to the operation. When a bucket is used to loosen the soil, the rake teeth on the bucket have a fixed structure and can only move with the bucket, which is inconvenient to control and cannot flexibly loosen the ground. In the prior art, some technicians have designed loosening and weeding accessories specifically for loaders to address the above problems, but the rake teeth are still set in a fixed manner. According to different operation requirements, it is often necessary to replace the active roller with rake teeth of different lengths, and even for the convenience of operation, it is necessary to carry multiple active rollers with rake teeth of different specifications, which is very inconvenient and affects work efficiency.

[0004] Therefore, the inventors want to solve the problem of designing a short-toothed rake that can adjust the length of the rake teeth without replacing the driving shaft, is suitable for a variety of operating requirements, has a wide range of applicability, and improves work efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a short-tooth rake for a loader, which can adjust the rake tooth length without replacing the driving shaft, is suitable for a variety of operating requirements, has a wide range of applicability, and improves work efficiency.

[0006] The technical solution adopted by the device of the utility model is: a short-toothed rake for a loader, which includes a crossbeam, both ends of the crossbeam are connected to end frames, a mounting frame is connected between the end frames and below the crossbeam, the front end of the mounting frame is connected to a front baffle, the edge of the front baffle is connected to a pressure plate by bolts, a silicone curtain is arranged between the pressure plate and the front baffle and is pressed by the pressure plate, a second connecting member is connected to the end surface on the same side of the mounting frame and the crossbeam, the second connecting member is connected to the first connecting member by a rotating shaft hinge, a hydraulic cylinder is connected to one side edge of the first connecting member by a rotating shaft hinge, the output end of the hydraulic cylinder is connected to an articulated frame by a rotating shaft hinge, and the articulated frame is fixed It is arranged on the end frame located on the left side, and the end frame located on the right side is connected with a mounting bracket, a hydraulic motor is arranged on the inner side of the mounting bracket, and the output end of the hydraulic motor passes through the side wall of the end frame, and the upper end surface of the cross beam is provided with two symmetrically arranged rotating frames, and a front end bracket is arranged on the inner side of the rotating frame, and the front end bracket is fixed to the rotating frame by two connecting bolts, and a connecting rod is slidably arranged on the inner side of the end of the front end bracket and locked by a top screw, and a guide wheel structure is connected to the bottom of the connecting rod, and an active roller is rotatably arranged between the two end frames through bearings and bearing seats, and the right end of the active roller is connected to the output end of the hydraulic motor by a coupling.

[0007] Furthermore, the first connecting member is docked and installed with an attachment mounting mechanism of the loader.

[0008] Furthermore, when the connecting bolt far away from the second connecting member is removed, the front end bracket can rotate around the connecting bolt close to the second connecting member.

[0009] Furthermore, the connecting bolt is threadedly connected to the front end bracket.

[0010] Further, the active roller includes an end flange, the left end of the end flange is connected to the first connecting shaft, the right end of the end flange is connected to the adjusting shaft, the right end of the adjusting shaft is connected to the second connecting shaft, a roller sleeve is arranged at the right end of the end flange and outside the adjusting shaft, and two rows of first through holes and second through holes that are staggered and evenly distributed at equal intervals are opened on the circumferential surface of the roller sleeve, the axes of the first through holes and the second through holes are perpendicular to each other and to the axis of the roller sleeve, both ends of the first through holes and the second through holes are connected to guide sleeves, a rake nail is slidably arranged on the inner side of the guide sleeve, a limiting flange is arranged at the bottom of the rake nail, a spring is arranged between the limiting flange and the inner side wall of the roller sleeve, the right end of the second connecting shaft passes through the right side wall of the roller sleeve, and the second connecting shaft is connected to the output end of the hydraulic motor through a coupling.

[0011] Furthermore, eight evenly arranged connection holes are provided at the edge of the end flange, and threaded holes corresponding to and used in conjunction with the connection holes are provided on the end surface of the roller sleeve that contacts and matches the end flange.

[0012] Furthermore, two symmetrically arranged planar structures are provided on the circumferential surface of the root of the first connecting shaft where it is connected to the end flange.

[0013] Furthermore, an arrow mark is arranged on the circumferential surface of the end flange, and an angle scale matching with the arrow mark is arranged on the circumferential surface of the left end of the roller sleeve.

[0014] Furthermore, the cross-section of the adjustment shaft is an octagon, and the adjustment shaft includes four first planes, a second plane is arranged between adjacent first planes, an arc transition structure is arranged at the corners connecting the first plane and the second plane, the angle between the four first planes is 90°, and the length of the second plane is smaller than the first plane.

[0015] Furthermore, when the adjusting shaft contacts the limiting flange, one of the first plane and the second plane is kept in contact with and in contact with the ground of the limiting flange.

[0016] Furthermore, the spring is normally in a compressed state.

[0017] Furthermore, a guide plate is provided on the side wall of the end frame.

[0018] The beneficial effects of the utility model device are:

[0019] 1. The utility model adopts a unique structural design. Through the rotation of the adjustment shaft with different distances between the relative position planes, the plane is used to extrude and lift the rake teeth connected to the limit flange. The inward reset of the rake teeth is achieved by the compression and reset of the spring, so as to adjust the position and protruding length of the rake teeth relative to the roller sleeve. One roller is suitable for various operation requirements, and the rake tooth length can be adjusted without replacing the driving shaft. It is suitable for various operation requirements, has a wide applicability, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural view of the utility model.

[0021] Figure 2 This is a structural view of the mounting frame of the utility model.

[0022] Figure 3 This is a structural view of the active roller of the utility model.

[0023] Figure 4 It is a cross-sectional view of the active roller of the utility model.

[0024] Figure 5This is a structural view of the adjusting shaft of the utility model.

[0025] Explanation of the reference numerals: 1-crossbeam; 2-end frame; 3-articulated frame; 4-hydraulic cylinder; 5-first connecting piece; 6-second connecting piece; 7-rotating frame; 8-front end bracket; 9-connecting rod; 10-guide wheel structure; 11-guide plate; 12-mounting bracket; 13-hydraulic motor; 14-mounting hole; 15-front baffle; 16-pressure plate; 17-silicone curtain; 18-active roller; 19-rake nail; 20-guide sleeve; 21-spring; 22-limiting flange; 23-adjusting shaft; 24-second plane; 25-first plane; 26-end flange; 27-first connecting shaft; 28-second connecting shaft. DETAILED DESCRIPTION

[0026] The following is a further description of the present invention in conjunction with specific embodiments. These embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to the application.

[0027] See also Figures 1 to 5 The utility model structural view, mounting frame structural view, active roller 18 structural view, active roller 18 cross-sectional view, adjusting shaft 23 structural view, a short-toothed rake for a loader, comprising a crossbeam 1, both ends of the crossbeam 1 are connected to end frames 2, a mounting frame is connected between the end frames 2 and below the crossbeam 1, a front baffle 15 is connected to the front end of the mounting frame, a pressure plate 16 is connected to the edge of the front baffle 15 by bolts, a silicone curtain 17 is provided between the pressure plate 16 and the front baffle 15 and is pressed by the pressure plate 16, the silicone curtain 17 is used to block and limit flying dirt and grass clippings during operation, so that they can be moved at a specified angle , the range falls, the second connecting piece 6 is connected to the end face on the same side of the mounting frame and the crossbeam 1, the second connecting piece 6 is connected to the first connecting piece 5 through a rotating shaft hinge, the edge of one side of the first connecting piece 5 is connected to the hydraulic cylinder 4 through a rotating shaft hinge, the output end of the hydraulic cylinder 4 is connected to the articulated frame 3 through a rotating shaft hinge, the articulated frame 3 is fixedly arranged on the end frame 2 on the left side, the hydraulic pipe connected to the hydraulic cylinder 4 is connected to the hydraulic system of the loader, and the pressure is provided by the hydraulic system. By controlling the action of the hydraulic cylinder 4, the angle of the entire device in the horizontal direction can be adjusted, and the first connecting piece 5 is docked and installed with the attachment mounting mechanism of the loader.

[0028] The end frame 2 on the right side is connected with a mounting bracket 12, and a hydraulic motor 13 is arranged inside the mounting bracket 12. The output end of the hydraulic motor 13 passes through the side wall of the end frame 2. The upper end surface of the end frame 2 in contact with the hydraulic motor 13 is provided with two symmetrically arranged mounting holes 14 for passing the hydraulic pipelines to be connected to the hydraulic motor 13. A driving roller 18 is rotatably arranged between the two end frames 2 through bearings and bearing seats. The right end of the driving roller 18 is connected to the output end of the hydraulic motor 13 through a coupling, and the hydraulic motor 13 supplies the driving roller 18 with power. The roller 18 provides power to rotate. The active roller 18 includes an end flange 26. The left end of the end flange 26 is connected to a first connecting shaft 27. The first connecting shaft 27 is used to rotate with the end frame 2 located on the left side. The right end of the end flange 26 is connected to an adjusting shaft 23. The right end of the adjusting shaft 23 is connected to a second connecting shaft 28. A roller sleeve is provided at the right end of the end flange 26 and outside the adjusting shaft 23. The adjusting shaft 23 is used to adjust the length of the rake nail 19 extending out of the roller sleeve. Two rows of first through holes are staggered and evenly distributed at equal intervals. , the second through hole, the axes of the first through hole and the second through hole are perpendicular to each other and to the axis of the roller sleeve, both ends of the first through hole and the second through hole are connected with a guide sleeve 20, and a rake nail 19 is slidably arranged inside the guide sleeve 20. Such a structure can make the rotating roller sleeve drive the rake nail 19 to loosen the soil and break the hard ground without leaving obvious grooves on the ground, and can loosen all the passed positions more evenly, a limiting flange 22 is arranged at the bottom of the rake nail 19, and a spring 21 is arranged between the limiting flange 22 and the inner wall of the roller sleeve, The spring 21 is in a compressed state under normal circumstances. By squeezing the limit flange 22, the limit flange 22 and the rake nail 19 can be pushed to move along the axis of the rake nail 19. The spring 21 is used as a reset means after the rake nail 19 loses thrust. The right end of the second connecting shaft 28 passes through the right side wall of the roller sleeve. The second connecting shaft 28 is connected to the output end of the hydraulic motor 13 through a coupling. Eight evenly arranged connecting holes are opened on the edge of the end flange 26. A threaded hole that is opposite to the position of the connecting hole and is used in conjunction with the contacting end surface of the roller sleeve and the end flange 26 is opened.

[0029] The main function of the adjustment shaft 23 is to support the rake nail 19 in normal state so that it can stably operate on the ground in the working state. The adjustment shaft 23 adopts a unique structural design. The cross section of the adjustment shaft 23 is designed to be an octagon. The adjustment shaft 23 includes four first planes 25. A second plane 24 is arranged between adjacent first planes 25. An arc transition structure is arranged at the corner connecting a plane and the second plane 24. The angle between the four first planes 25 is 90°. The length of the second plane 24 is smaller than the first plane 25. The first plane 25 and the second plane 24 are connected. The lengths of the two planes 24 are designed to have different values, so that the spacing between the first planes 25 in relative position and the spacing between the second planes 24 in relative position have different values. The plane that fits and contacts with the limiting flange 22 can be switched when the adjusting shaft 23 is rotated. When the limiting flange 22 contacts and fits with the first plane 25, the length of the rake nail 19 extending out of the guide sleeve 20 is less than the length of the rake nail 19 extending out of the guide sleeve 20 when the limiting flange 22 contacts and fits with the second plane 24, thereby achieving the purpose of adjusting the protruding length of the rake nail 19 by rotating the adjusting shaft 23.

[0030] In order to better maintain the stable state of the rake spike 19 during operation, when the joint shaft contacts the limiting flange 22 , one of the first plane 25 and the second plane 24 is kept in contact with and fits the ground of the limiting flange 22 .

[0031] In order to more finely adjust the extended length of the rake nail 19 and to provide more sizes for selection, the number of planes of the adjusting shaft 23 can be further redesigned to increase it to a multiple of four, such as twelve planes or sixteen planes. Correspondingly, the number of matching connecting holes and threaded holes on the end flange 26 and the roller sleeve should also be adjusted accordingly to be consistent with the number of planes of the adjusting shaft 23 and evenly distributed.

[0032] The upper end surface of the crossbeam 1 is provided with two symmetrically arranged rotating frames 7, and a front end bracket 8 is provided on the inner side of the rotating frame 7. The front end bracket 8 is fixed to the rotating frame 7 by two connecting bolts. A connecting rod 9 is slidably provided on the inner side of the end of the front end bracket 8 and is locked by a top screw. The bottom of the connecting rod 9 is connected to a guide wheel structure 10. When the connecting bolt away from the second connecting member 6 is removed, the front end bracket 8 can rotate around the connecting bolt close to the second connecting member 6. The connecting bolt and the front end bracket 8 are threadedly connected. The guide wheel structure 10 can provide support for the entire device and can also assist the loader in guiding the active roller 18 to operate. When the guide wheel structure 10 is not needed, it can be lifted or removed.

[0033] In order to more conveniently rotate the adjustment shaft 23 arranged in the roller sleeve and adjust the extension length of the rake teeth when removing the bolts fixing the end flange 26 and the roller sleeve, two symmetrically arranged plane structures are further provided on the circumferential surface of the root of the first connecting shaft 27 connected to the end flange 26, so as to facilitate the use of tools for clamping and rotation, such as a wrench or a pipe clamp.

[0034] In order to more accurately and quickly adjust the angle of the end flange 26 and the adjustment shaft 23 connected to the end flange 26 so that it can just reach the switching plane in contact with the fiber flange, further, an arrow mark is provided on the circumferential surface of the end flange 26, and an angle scale matching the arrow mark is provided on the left end circumferential surface of the roller sleeve. By comparing with the scale set on the angle scale, the angle of the adjustment shaft 23 can be rotated quickly and accurately.

[0035] In order to better gather the dirt and grass clippings that may spread from the front end to the surroundings, a guide plate 11 is provided on the side wall of the end frame 2 to limit the dirt and grass clippings splashing from the front end.

[0036] The utility model adopts a unique structural design. Through the rotation of the adjustment shaft 23 with different distances between relative position planes, the rake teeth connected to the limit flange 22 are pressed and lifted up using the plane. The inward resetting of the rake teeth is achieved through the compression and resetting of the spring 21, so as to adjust the position and protruding length of the rake teeth relative to the roller sleeve. One roller is suitable for various operation requirements, and the rake tooth length can be adjusted without replacing the driving shaft. It is suitable for various operation requirements, has a wide range of applicability, and improves work efficiency.

Claims

1. A short-toothed harrow for a loader, characterized in that: The invention comprises a cross beam (1), both ends of the cross beam (1) are connected to end frames (2), a mounting frame is connected between the end frames (2) and below the cross beam (1), a front end of the mounting frame is connected to a front baffle (15), an edge of the front baffle (15) is connected to a pressure plate (16) by bolts, a silicone curtain (17) is arranged between the pressure plate (16) and the front baffle (15) and is pressed by the pressure plate (16), a second connecting member (6) is connected to the end surface on the same side of the mounting frame and the cross beam (1), the second connecting member (6) is connected to the first connecting member (5) by a rotating shaft hinge, a hydraulic cylinder (4) is connected to one side edge of the first connecting member (5) by a rotating shaft hinge, the output end of the hydraulic cylinder (4) is connected to an articulated frame (3) by a rotating shaft hinge, and the articulated frame (3) is fixedly arranged on the end frame (2) located on the left side. The end frame (2) located on the right side is connected to a mounting bracket (12), a hydraulic motor (13) is arranged inside the mounting bracket (12), the output end of the hydraulic motor (13) passes through the side wall of the end frame (2), the upper end surface of the crossbeam (1) is provided with two symmetrically arranged rotating frames (7), the inner side of the rotating frame (7) is provided with a front end bracket (8), the front end bracket (8) is fixed to the rotating frame (7) by two connecting bolts, a connecting rod (9) is slidably arranged on the inner side of the end of the front end bracket (8) and is locked by a top screw, the bottom of the connecting rod (9) is connected to a guide wheel structure (10), and an active roller (18) is rotatably arranged between the two end frames (2) through a bearing and a bearing seat, and the right end of the active roller (18) is connected to the output end of the hydraulic motor (13) by a coupling.

2. The short-toothed rake for a loader according to claim 1, characterized in that: The first connecting member (5) is butt-jointed and mounted with an attachment mounting mechanism of the loader.

3. The short-toothed rake for a loader according to claim 1, characterized in that: The front end bracket (8) can rotate around the connecting bolt close to the second connecting member (6) when the connecting bolt far away from the second connecting member (6) is removed.

4. The short-toothed harrow for a loader according to claim 1, characterized in that: The active roller (18) comprises an end flange (26), the left end of the end flange (26) is connected to a first connecting shaft (27), the right end of the end flange (26) is connected to an adjusting shaft (23), the right end of the adjusting shaft (23) is connected to a second connecting shaft (28), a roller sleeve is arranged at the right end of the end flange (26) and outside the adjusting shaft (23), and two rows of first through holes and second through holes which are staggered and evenly distributed at equal intervals are opened on the circumferential surface of the roller sleeve, and the first through holes and the second through holes are connected to each other. The axes of the holes are perpendicular to each other and to the axis of the roller sleeve. Both ends of the first through hole and the second through hole are connected to a guide sleeve (20). A rake nail (19) is slidably arranged inside the guide sleeve (20). A limit flange (22) is arranged at the bottom of the rake nail (19). A spring (21) is arranged between the limit flange (22) and the inner wall of the roller sleeve. The right end of the second connecting shaft (28) passes through the right side wall of the roller sleeve. The second connecting shaft (28) is connected to the output end of the hydraulic motor (13) through a coupling.

5. The short-toothed harrow for a loader according to claim 4, characterized in that: The cross section of the adjustment shaft (23) is an octagon. The adjustment shaft (23) comprises four first planes (25). A second plane (24) is arranged between adjacent first planes (25). An arc transition structure is arranged at the corner connecting the first plane and the second plane (24). The angle between the four first planes (25) is 90°. The length of the second plane (24) is smaller than that of the first plane (25).

6. The short-toothed harrow for a loader according to claim 5, characterized in that: When the adjustment shaft (23) contacts the limiting flange (22), one of the first plane (25) and the second plane (24) is kept in contact with and in close contact with the ground of the limiting flange (22).

7. The short-toothed harrow for a loader according to claim 4, characterized in that: The spring (21) is normally in a compressed state.

8. The short-toothed harrow for a loader according to claim 1, characterized in that: A guide plate (11) is provided on the side wall of the end frame (2).

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