An automatic hydraulic lifting device for a slag rake

Abstract

The utility model discloses an automatic hydraulic hoisting device for a slag scraper, including the chassis and the scraper, be provided with hydraulic hoisting assembly on the chassis, including support seat, track groove body, sliding block, support frame and hydraulic cylinder in the hydraulic hoisting assembly, and support seat sets up at the top of chassis, and the scraper rotation is connected at the top of support seat, and track groove body sets up on the chassis. The utility model discloses through setting up hydraulic hoisting assembly, and hydraulic cylinder is placed in the placing groove in the hydraulic hoisting assembly, and the output shaft of hydraulic cylinder is active and is attached with sliding block, and through the telescopic push of sliding block of hydraulic cylinder output axle extension to the scraper and is lifted and is reduced, so need not to carry out disassembly through hydraulic cylinder output axle, and after contraction, automatic separation with sliding block, greatly convenient to the disassembly of hydraulic cylinder, and the design of support frame has increased the support area of the scraper.

Description

Technical Field

[0001] This utility model relates to the field of muck loader technology, and in particular to an automatic hydraulic lifting device for a muck loader. Background Technology

[0002] A muck loader is a piece of equipment used for cleaning and loading muck in mines and tunnels. It generally consists of a bucket, a conveyor belt, and hydraulic claws. Operators operate the hydraulic claws to scoop the muck into the bucket, and then the conveyor belt transports the muck to a muck truck behind it, thus achieving efficient muck removal operations.

[0003] The bucket of a muck loader is usually lifted by a hydraulic cylinder. The hydraulic cylinder is mounted on the base, and its output shaft is directly connected to the bucket for rotation. This connection not only results in a small support area for the bucket, affecting its use, but also increases the complexity of disassembling the hydraulic cylinder, making it difficult to repair and maintain the hydraulic cylinder itself.

[0004] Therefore, how to provide an automatic hydraulic lifting device for a muck loader is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide an automatic hydraulic lifting device for a muck loader. This invention solves the problem that in existing automatic hydraulic lifting devices, the hydraulic cylinder is directly connected to the rotating bucket, which not only results in a small support area for the bucket but also makes it difficult to disassemble the hydraulic cylinder for repair and maintenance.

[0006] An automatic hydraulic lifting device for a muck loader according to an embodiment of the present invention includes a chassis and a bucket. A hydraulic lifting assembly is provided on the chassis. The hydraulic lifting assembly includes a support base, a track groove, a slider, a support frame, and a hydraulic cylinder. The support base is located on the top of the chassis, and the bucket is rotatably connected to the top of the support base. The track groove is located on the chassis, and the slider is slidably connected inside the track groove. The support frame is rotatably connected to the top of the slider, and the other end of the support frame is rotatably connected to the lower surface of the bucket. A placement groove is provided on the chassis near the track groove, and the hydraulic cylinder is placed inside the placement groove. The output of the hydraulic cylinder extends into the interior of the track groove and is movably connected to the surface of the slider.

[0007] The support frame is a "triangular" frame, with the corner of the support frame rotatably connected to the slider, and one side of the support frame rotatably connected to the bottom of the bucket.

[0008] The top and bottom of the track groove are connected, and the bottom of the inner wall of the track groove is inclined.

[0009] A cleaning ring is provided at the position where the track groove is sleeved on the output shaft of the hydraulic cylinder, and the cleaning ring is movably sleeved on the surface of the output shaft of the hydraulic cylinder.

[0010] A lifting assembly is provided at the bottom of the chassis corresponding to the placement slot, and a hydraulic cylinder is located at the top of the lifting assembly.

[0011] The lifting assembly includes a positioning plate, a lifting plate, a fixed seat, and a transverse lead screw. The positioning plate is slidably connected to the top of the lifting plate and is clamped onto the surface of the hydraulic cylinder. One end of the lifting plate is rotatably connected to the bottom of the chassis, and the other end of the lifting plate is fixedly connected to the bottom of the chassis by bolts. The fixed seat is fixedly connected to the top of the lifting plate, and the transverse lead screw is rotatably connected to the fixed seat. The positioning plate is threaded onto the surface of the transverse lead screw.

[0012] The lifting assembly also includes a bottom seat, a movable plate, a bottom lead screw, a diagonal brace, and a bottom support rod. The bottom seat is fixedly connected to the bottom of the lifting plate, the bottom lead screw is rotatably connected to the bottom seat, the bottom support rod is rotatably connected to the lower surface of the lifting plate, one end of the diagonal brace is rotatably connected to the surface of the bottom support rod near its axis of symmetry, and the other end of the diagonal brace is rotatably connected to both ends of the movable plate. The movable plate is threaded onto the surface of the bottom lead screw.

[0013] The beneficial effects of this utility model are:

[0014] By setting up a hydraulic lifting assembly, the hydraulic cylinder is placed in a slot, and the output shaft of the hydraulic cylinder is in contact with the slider. The bucket is raised and lowered by extending and retracting the hydraulic cylinder output shaft to push the slider. This eliminates the need for disassembly of the hydraulic cylinder output shaft, which automatically separates from the slider after retraction, greatly facilitating the disassembly of the hydraulic cylinder. The design of the support frame increases the support area for the bucket, solving the problem in existing automatic hydraulic lifting devices where the hydraulic cylinder is directly connected to the bucket, resulting in a small support area for the bucket and making it difficult to disassemble and maintain the hydraulic cylinder.

[0015] By setting up a lifting assembly, the hydraulic cylinder is positioned on the lifting assembly, and then the hydraulic cylinder is lowered and raised by the lifting assembly. This eliminates the need for manual handling when removing the hydraulic cylinder, greatly improving the efficiency of hydraulic cylinder replacement. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an automatic hydraulic lifting device for a muck loader proposed in this utility model.

[0018] Figure 2This is a three-dimensional structural diagram of the lifting component position in an automatic hydraulic lifting device for a muck loader proposed in this utility model.

[0019] Figure 3 This is a three-dimensional cross-sectional view of the hydraulic lifting component in an automatic hydraulic lifting device for a muck loader, as proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the hydraulic lifting component in an automatic hydraulic lifting device for a muck loader proposed in this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the lifting component in an automatic hydraulic lifting device for a muck loader proposed in this utility model.

[0022] The attached diagram shows: 1. Chassis; 2. Bucket; 3. Hydraulic lifting assembly; 4. Support base; 5. Track groove; 6. Slider; 7. Support frame; 8. Hydraulic cylinder; 9. Placement slot; 10. Cleaning ring; 11. Lifting assembly; 12. Positioning plate; 13. Lifting plate; 14. Fixed base; 15. Lateral sliding screw; 16. Bottom base; 17. Moving plate; 18. Bottom screw; 19. Diagonal brace; 20. Bottom support rod. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] refer to Figure 1-5In this embodiment, the system includes a chassis 1 and a bucket 2. A hydraulic lifting assembly 3 is mounted on the chassis 1. The hydraulic lifting assembly 3 includes a support base 4, a track groove 5, a slider 6, a support frame 7, and a hydraulic cylinder 8. The support base 4 is located on the top of the chassis 1, and the bucket 2 is rotatably connected to the top of the support base 4. The track groove 5 is located on the chassis 1, and the slider 6 is slidably connected inside the track groove 5. The support frame 7 is rotatably connected to the top of the slider 6, and the other end of the support frame 7 is rotatably connected to the lower surface of the bucket 2. A placement groove 9 is located on the chassis 1 near the track groove 5, and the hydraulic cylinder 8 is placed inside the placement groove 9. The output of the hydraulic cylinder 8 extends into the interior of the track groove 5 and is movably connected to the surface of the slider 6. The support frame 7 is triangular, and the corner of the support frame 7 is connected to the slider 6. The support frame 7 is rotatably connected to the bottom of the bucket 2. The fit between the support frame 7 and the bucket 2 increases the support area, greatly improving the load-bearing capacity of the bucket 2. Furthermore, the output shaft of the hydraulic cylinder 8 is movably connected to the slider 6. This allows the hydraulic cylinder 8 to retract its output shaft into the placement groove 9, separating it from the slider 6 without disassembly, significantly improving the efficiency of replacing the hydraulic cylinder 8. During support, the output shaft of the hydraulic cylinder 8 extends and passes through the track groove 5. After passing through the track groove 5, the output shaft of the hydraulic cylinder 8 fits against the slider 6, pushing the slider 6 to move. The movement of the slider 6 causes the support frame 7 to move and rotate, which in turn pushes the bucket 2 upwards, thus lifting the bucket 2. The lowering operation is the reverse of the above operation.

[0025] refer to Figure 1-5 In this embodiment, the top and bottom of the track groove 5 are connected, and the bottom of the inner wall of the track groove 5 is inclined. This allows gravel to fall automatically through the inclined surface, preventing gravel from accumulating inside the track groove 5. A cleaning ring 10 is provided at the position where the track groove 5 is fitted onto the output shaft of the hydraulic cylinder 8. The cleaning ring 10 is fixedly connected inside the track groove 5. When the output shaft of the hydraulic cylinder 8 extends and retracts, the cleaning ring 10 will wipe and clean its surface, improving the cleanliness of the surface of the output shaft of the hydraulic cylinder 8. One side of the hydraulic cylinder 8 is attached to the side of the track groove 5 by a rubber ring, thus preventing gaps between the hydraulic cylinder 8 and the track groove 5 from causing gravel or other debris to get stuck at that position and affect the normal operation of the hydraulic cylinder 8. The cleaning ring 10 is movably fitted onto the surface of the output shaft of the hydraulic cylinder 8.

[0026] refer to Figure 1-5In this embodiment, a lifting assembly 11 is provided at the bottom of the chassis 1 corresponding to the placement slot 9. The placement slot 9 is connected to the lower surface of the chassis 1, allowing the hydraulic cylinder 8 to be placed from the bottom of the chassis 1. For easier placement and replacement of the hydraulic cylinder 8, the hydraulic cylinder 8 is positioned at the top of the lifting assembly 11. The lifting assembly 11 includes a positioning plate 12, a lifting plate 13, a fixing seat 14, and a transverse lead screw 15. The positioning plate 12 is slidably connected to the top of the lifting plate 13 and is engaged with the surface of the hydraulic cylinder 8. One end of the lifting plate 13 is rotatably connected to the bottom of the chassis 1, and the other end of the lifting plate 13 is fixedly connected to the bottom of the chassis 1 by bolts. The fixing seat 14 is fixedly connected to the top of the lifting plate 13, and the transverse lead screw 15 is rotatably connected to the top of the lifting plate 13. On the fixed seat 14, the positioning plate 12 is threaded onto the surface of the transverse lead screw 15. The lifting assembly 11 also includes a bottom seat 16, a moving plate 17, a bottom lead screw 18, a diagonal brace 19, and a bottom support rod 20. The bottom seat 16 is fixedly connected to the bottom of the lifting plate 13. The bottom lead screw 18 is rotatably connected to the bottom seat 16. The bottom support rod 20 is rotatably connected to the lower surface of the lifting plate 13. One end of the diagonal brace 19 is rotatably connected to the surface of the bottom support rod 20 near its axis of symmetry, and the other end of the diagonal brace 19 is rotatably connected to both ends of the moving plate 17. The moving plate 17 is threaded onto the surface of the bottom lead screw 18. The lifting assembly 11 is provided here to facilitate the replacement of the hydraulic cylinder 8. During operation, the bottom lead screw needs to be rotated first. 18. Rotating the bottom screw 18 will cause the moving plate 17 to move. The movement of the moving plate 17 will cause the diagonal brace 19 to move. When the diagonal brace 19 moves and opens the bottom support rod 20, the bottom support rod 20 rotates downward and supports itself on the ground. Then, remove the bolt. After the bolt is removed, the lifting plate 13 is not easily rotated downward due to the support of the bottom support rod 20. After the bolt is removed, rotate the bottom screw 18 in the opposite direction, causing the bottom screw 18 to rotate in reverse and drive the moving plate 17 to move slowly back to its original position. The movement of the moving plate 17 will cause the diagonal brace 19 to rotate. The rotation of the diagonal brace 19 will pull the bottom support rod 20 to retract, causing the bottom support rod 20 to rotate slowly and approach the lifting plate 13. In this way, the lifting plate 13 will slowly rotate downward until the lifting plate... When the end face of 13 rests on the ground, the positioning plate 12 causes the hydraulic cylinder 8 to separate from the placement groove 9. Then, the transverse lead screw 15 is rotated, which moves the positioning plate 12 toward the ground. This moves the hydraulic cylinder 8 to a position on the lifting plate 13 close to the ground, allowing the hydraulic cylinder 8 to be lowered without manual handling. The hydraulic cylinder 8 is quite heavy and difficult for one person to move. Therefore, this structure greatly improves the efficiency of replacing and maintaining the hydraulic cylinder 8. It should be noted that the output shaft of the hydraulic cylinder 8 must be retracted into the placement groove 9 before it can be removed. A sleeve is provided at one end of the positioning plate 12, which is fitted onto the end of the hydraulic cylinder 8 away from the output shaft to stably position the hydraulic cylinder 8.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic hydraulic lifting device for a muck loader, characterized in that, Includes a chassis (1) and a bucket (2), wherein a hydraulic lifting assembly (3) is provided on the chassis (1); The hydraulic lifting assembly (3) includes a support base (4), a track groove (5), a slider (6), a support frame (7), and a hydraulic cylinder (8). The support base (4) is located on the top of the chassis (1), and the bucket (2) is rotatably connected to the top of the support base (4). The track groove (5) is located on the chassis (1), and the slider (6) is slidably connected to the inside of the track groove (5). The support frame (7) is rotatably connected to the top of the slider (6), and the other end of the support frame (7) is rotatably connected to the lower surface of the bucket (2). A placement groove (9) is provided on the chassis (1) near the track groove (5), and the hydraulic cylinder (8) is placed inside the placement groove (9). The output of the hydraulic cylinder (8) extends into the inside of the track groove (5) and is movably connected to the surface of the slider (6).

2. The automatic hydraulic lifting device for a muck loader according to claim 1, characterized in that, The support frame (7) is a "triangular" frame, with the corner of the support frame (7) rotatably connected to the slider (6), and one side of the support frame (7) rotatably connected to the bottom of the bucket (2).

3. An automatic hydraulic lifting device for a slag picker according to claim 2, characterized in that, The top and bottom of the track groove (5) are connected, and the bottom of the inner wall of the track groove (5) is inclined.

4. An automatic hydraulic lifting device for a slag picker according to claim 3, characterized in that, The track groove (5) is fitted with a cleaning ring (10) at the position of the output shaft of the hydraulic cylinder (8), and the cleaning ring (10) is movably fitted on the surface of the output shaft of the hydraulic cylinder (8).

5. An automatic hydraulic lifting device for a slag picker according to claim 4, characterized in that, A lifting assembly (11) is provided at the bottom of the chassis (1) corresponding to the placement groove (9), and a hydraulic cylinder (8) is provided at the top of the lifting assembly (11).

6. An automatic hydraulic lifting device for a slag picker according to claim 5, characterized in that, The lifting assembly (11) includes a positioning plate (12), a lifting plate (13), a fixed seat (14), and a transverse screw (15). The positioning plate (12) is slidably connected to the top of the lifting plate (13) and is clamped on the surface of the hydraulic cylinder (8). One end of the lifting plate (13) is rotatably connected to the bottom of the chassis (1), and the other end of the lifting plate (13) is fixedly connected to the bottom of the chassis (1) by bolts. The fixed seat (14) is fixedly connected to the top of the lifting plate (13), and the transverse screw (15) is rotatably connected to the fixed seat (14). The positioning plate (12) is threaded onto the surface of the transverse screw (15).

7. An automatic hydraulic lifting device for a slag picker according to claim 6, characterized in that, The lifting assembly (11) also includes a bottom seat (16), a movable plate (17), a bottom screw (18), a diagonal brace (19), and a bottom support rod (20). The bottom seat (16) is fixedly connected to the bottom of the lifting plate (13). The bottom screw (18) is rotatably connected to the bottom seat (16). The bottom support rod (20) is rotatably connected to the lower surface of the lifting plate (13). One end of the diagonal brace (19) is rotatably connected to the surface of the bottom support rod (20) near its axis of symmetry. The other end of the diagonal brace (19) is rotatably connected to both ends of the movable plate (17). The movable plate (17) is threaded onto the surface of the bottom screw (18).

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