A folding material lifting platform for a tunneling machine

Abstract

This utility model relates to the field of material lifting platform technology, and discloses a folding tunneling machine material lifting platform, including a base frame. Multiple support frames are fixedly connected to the top of the base frame, and a fixed frame is also fixedly connected to the top of the base frame. A motor is fixedly connected to one side of the fixed frame, and a rotating rod is fixedly connected to the output end of the motor. A transmission rod is fixedly connected to the top of the rotating rod, and a support rod is rotatably connected to the outer wall of the transmission rod. The support rod is rotatably connected inside two of the support frames, and another support rod is rotatably connected inside the other two support frames. In this utility model, the lifting assembly is driven by a motor, and with the assistance of an angle limiting structure composed of a limiting rod and a limiting column, a stable and precise lifting effect is achieved for the material lifting platform. This solves the problem that the rotation angle of the connecting rod cannot be effectively limited during lifting, resulting in severe platform shaking and difficulty in accurately locking at the required height.

Description

Technical Field

[0001] This utility model relates to the field of material lifting platform technology, and in particular to a folding material lifting platform for a tunneling machine. Background Technology

[0002] In underground tunneling and mining operations, material hoists are crucial equipment for ensuring construction efficiency and safety. These hoists frequently need to move tunneling equipment, support materials, and mined materials in narrow and complex tunnel environments. Their lifting stability, spatial adaptability, and ease of operation directly affect project progress and personnel safety. Foldable material hoists, with their foldable structural design, reduce the space occupied by the equipment when not in operation, facilitating movement and storage within the tunnel. When in use, they can be quickly unfolded and their height precisely adjusted to meet the material loading and unloading needs under different working conditions. Furthermore, reliable limit locking functions prevent the risk of material falling due to shaking or loss of control during lifting, which is of great significance for improving the automation level and safety of tunneling operations.

[0003] Traditional lifting platforms mostly use fixed scissor lift structures or hydraulic jacking methods to achieve lifting. Scissor lift platforms transmit power through multiple sets of cross-hinged linkage mechanisms, relying on bottom hydraulic cylinders or electric push rods to drive the linkages to extend and retract. Hydraulic jacking platforms use plunger pumps to deliver hydraulic oil to the lifting column, directly lifting the platform through liquid pressure.

[0004] However, existing ordinary lifting platforms generally suffer from the problem that they cannot effectively limit the rotation angle of the linkage during lifting, resulting in severe platform shaking, difficulty in accurately locking at the required height, and excessive area occupied when unfolded in narrow spaces. Traditional scissor lift platforms are prone to material slippage during lifting due to the lack of dynamic limiting structure in the linkage mechanism. Although hydraulic lifting platforms can achieve height adjustment, pressure fluctuations in the hydraulic system can cause vertical displacement deviations of the platform. Therefore, a folding material lifting platform for tunneling machines is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a folding material lifting platform for a tunneling machine, which aims to improve the problem in the prior art that the linkage rotation angle cannot be effectively limited during the lifting process, resulting in severe platform shaking and difficulty in accurately locking at the required height.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A folding material lifting platform for a tunneling machine includes a base frame. Multiple support frames are fixedly connected to the top of the base frame. A fixed frame is also fixedly connected to the top of the base frame. A motor is fixedly connected to one side of the fixed frame. A rotating rod is fixedly connected to the output end of the motor. A transmission rod is fixedly connected to the top of the rotating rod. A support rod 1 is rotatably connected to the outer wall of the transmission rod. The support rod 1 is rotatably connected inside two of the support frames. Support rod 2 is rotatably connected inside the other two support frames. A connecting frame is rotatably connected to the top of both support rod 1 and support rod 2. A lifting assembly is provided at the top of the connecting frame. A sliding assembly is provided at the top of the base frame.

[0008] The lifting assembly includes a support frame, the bottom of which is fixedly connected to the top of the connecting frame. A rotating frame is rotatably connected to the outer wall of the support rod. A limit rod is rotatably connected inside the rotating frame. Multiple limit posts are fixedly connected to the top of the base frame, and the limit rods are in contact with the limit posts.

[0009] As a further description of the above technical solution:

[0010] The sliding assembly includes a fixed plate and two sliding rods. The bottom of the fixed plate is fixedly connected to the top of the base frame, and both sliding rods are slidably connected to the outer wall of the fixed plate.

[0011] As a further description of the above technical solution:

[0012] One of the slide rods has a symmetrical clamping block 1 slidably connected to its outer wall, and the other slide rod has a symmetrical clamping block 2 slidably connected to its outer wall.

[0013] As a further description of the above technical solution:

[0014] Both of the clamping blocks 1 and 2 have a sliding column 1 inside, and one end of each of the two sliding columns 1 is fixedly connected to a threaded column 1.

[0015] As a further description of the above technical solution:

[0016] One end of the sliding column is fixedly connected to a threaded ring, and the two threaded columns are respectively threadedly connected to the interior of another clamping block and clamping block.

[0017] As a further description of the above technical solution:

[0018] The other clamping block one and clamping block two are both equipped with sliding pillar two inside, and one end of each of the two sliding pillar two is fixedly connected to a threaded pillar two.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the threaded column 2 is threaded with a knob, which is rotatably connected to one side of one of the clamping blocks 1 and 2. The two sliding columns 2 are respectively threaded inside the other clamping block 1 and 2.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the lifting assembly is driven by a motor-driven power transmission. At the same time, the angle limiting structure composed of a limiting rod and a limiting column is used to achieve a stable and precise lifting effect of the material lifting platform. This solves the problem that the linkage rotation angle cannot be effectively limited during the lifting process, resulting in severe platform shaking and difficulty in accurately locking at the required height, thereby improving the stability of the material lifting platform.

[0023] 2. In this utility model, the screw transmission structure controlled by the knob drives the adjustable material clamping structure to work. At the same time, the position adjustment and fixing structure composed of the slide rod and the screw assembly realizes the effect of flexible clamping and stable fixing of materials of different sizes. This solves the problem that the traditional lifting platform material clamping device has a single specification, is difficult to adapt to diverse materials, and is prone to causing materials to be not firmly fixed or unable to be loaded, thereby improving the applicability of the material lifting platform. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a folding material lifting platform for a tunneling machine proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the top structure of the base frame of a folding tunneling machine material lifting platform proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the limiting column structure of a folding tunneling machine material lifting platform proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the top structure of the support frame of a folding tunneling machine material lifting platform proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the slide bar structure of a folding tunneling machine material lifting platform proposed in this utility model.

[0029] Legend:

[0030] 1. Base frame; 2. Support frame; 3. Fixing frame; 4. Motor; 5. Rotating rod; 6. Transmission rod; 7. Support rod one; 8. Support rod two; 9. Connecting frame; 10. Support frame; 11. Rotating frame; 12. Limiting rod; 13. Limiting post; 14. Fixing plate; 15. Sliding rod; 16. Clamping block one; 17. Sliding post one; 18. Threaded post one; 19. Clamping block two; 20. Sliding post two; 21. Threaded post two; 22. Knob; 23. Threaded ring. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3 The present invention provides an embodiment of a folding tunneling machine material lifting platform, comprising a base frame 1, a plurality of support frames 2 fixedly connected to the top of the base frame 1, a fixed frame 3 fixedly connected to the top of the base frame 1, a motor 4 fixedly connected to one side of the fixed frame 3, a rotating rod 5 fixedly connected to the output end of the motor 4, a transmission rod 6 fixedly connected to the top of the rotating rod 5, a support rod 7 rotatably connected to the outer wall of the transmission rod 6, the support rod 7 rotatably connected inside two of the support frames 2, and a support rod 8 rotatably connected inside the other two support frames 2, a connecting frame 9 rotatably connected to the top of both the support rod 7 and the support rod 8, a lifting component provided at the top of the connecting frame 9, and a sliding component provided at the top of the base frame 1;

[0033] The lifting assembly includes a support frame 10, the bottom of which is fixedly connected to the top of the connecting frame 9. A rotating frame 11 is rotatably connected to the outer wall of the support rod 7. A limit rod 12 is rotatably connected inside the rotating frame 11. Multiple limit posts 13 are fixedly connected to the top of the base frame 1. The limit rod 12 is in contact with the limit post 13. During the lifting process, the limit rod 12 and the limit post 13 cooperate closely to precisely control the rotation angle of the support rod 7 and the support rod 8 through mechanical limiting, preventing structural instability due to excessive rotation and effectively improving the safety and reliability of the lifting platform operation.

[0034] Reference Figure 1 , Figure 4 and Figure 5The sliding assembly includes a fixed plate 14 and two sliding rods 15. The bottom of the fixed plate 14 is fixedly connected to the top of the base frame 1. Both sliding rods 15 are slidably connected to the outer wall of the fixed plate 14. One sliding rod 15 has a symmetrical clamping block 16 slidably connected to its outer wall, and the other sliding rod 15 has a symmetrical clamping block 29 slidably connected to its outer wall. Both clamping blocks 16 and 29 have a sliding column 17 passing through them. One end of each sliding column 17 is fixedly connected to a threaded column 18, and one end of each sliding column 17 is fixedly connected to a threaded ring 23. The two threaded columns 18 are... A sliding post 20 is threadedly connected inside another clamping block 16 and clamping block 29. Both clamping blocks 16 and 29 have sliding posts 20 inside them. One end of each sliding post 20 is fixedly connected to a threaded post 21. A knob 22 is threadedly connected to the outer wall of the threaded post 21. The knob 22 is rotatably connected to one side of one of the clamping blocks 16 and 29. The two sliding posts 20 are respectively threaded inside the other clamping block 16 and clamping block 29. When the knob 22 is rotated, the threaded post 21 drives the sliding post 20 to move precisely, thereby adjusting the distance between the clamping blocks. To further enhance clamping stability, a sliding post 17, a threaded post 18, and a threaded ring 23 form an auxiliary fixing structure. The threaded ring 23 is threadedly connected to the sliding post 17 and can be tightened onto the clamping block to prevent displacement of the clamping block under force.

[0035] Working principle: When using the material lifting platform of this folding tunneling machine, when it is necessary to lift materials, start the motor 4 on one side of the fixed frame 3. The motor 4 drives the rotating rod 5 at the output end to rotate, and the transmission rod 6 at the top of the rotating rod 5 rotates accordingly. Because the outer wall of the transmission rod 6 is rotatably connected to the support rod 7, and the support rod 7 is rotatably connected to part of the support frame 2, while the second support rod 8 is rotatably connected to another support frame 2, under the action of the rotation of the transmission rod 6, the support rod 7 will rotate around its connection point with the support frame 2, thereby driving the support rod 7 connected to the support frame 2 through the connecting frame 9. The second support rod 8 rotates synchronously to achieve a scissor-like lifting motion. The support frame 10 rises and falls with the connecting frame 9. The rotating frame 11, which is rotatably connected to the outer wall of the first support rod 7, is internally connected to a limit rod 12. The limit post 13, which is fixedly connected to the top of the base frame 1, contacts the limit rod 12. During the lifting process, the limit rod 12 and the limit post 13 cooperate to limit the rotation angle and position of the first support rod 7 and the second support rod 8, ensuring the stability of the lifting motion and preventing excessive rotation that could cause structural damage. This achieves the effect of effectively locking the height at the required height during lifting.

[0036] When clamping and fixing materials, the fixed plate 14 at the top of the base frame 1 provides sliding support for the two slide rods 15. The two slide rods 15 can slide and adjust their positions along the outer wall of the fixed plate 14. The clamping block 16 on the outer wall of one slide rod 15 and the clamping block 19 on the outer wall of the other slide rod 15 are used to clamp materials. By rotating the knob 22, the outer wall of the threaded column 21 is threadedly connected to the knob 22, and the threaded column 21 will drive the slide column 20 to move, thereby adjusting the distance between the clamping block 16 and the clamping block 19. At the same time, the threaded ring 23 at one end of the slide column 17 cooperates with the threaded column 18 to help fix the position of the clamping blocks, so that the clamping block 16 and the clamping block 19 can be adapted to clamp according to the size of the material, and the material is firmly fixed on the lifting platform to prevent the material from slipping during lifting and transfer.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A folding material lifting platform for a tunneling machine, comprising a base frame (1), characterized in that: The base frame (1) is fixedly connected to a plurality of support frames (2) at the top. The base frame (1) is fixedly connected to a fixed frame (3). A motor (4) is fixedly connected to one side of the fixed frame (3). A rotating rod (5) is fixedly connected to the output end of the motor (4). A transmission rod (6) is fixedly connected to the top of the rotating rod (5). A support rod (7) is rotatably connected to the outer wall of the transmission rod (6). The support rod (7) is rotatably connected inside two of the support frames (2). A support rod (8) is rotatably connected inside the other two support frames (2). A connecting frame (9) is rotatably connected to the top of both the support rod (7) and the support rod (8). A lifting component is provided on the top of the connecting frame (9). A sliding component is provided on the top of the base frame (1). The lifting assembly includes a support frame (10), the bottom of which is fixedly connected to the top of the connecting frame (9). A rotating frame (11) is rotatably connected to the outer wall of the support rod (7). A limiting rod (12) is rotatably connected inside the rotating frame (11). A plurality of limiting posts (13) are fixedly connected to the top of the base frame (1). The limiting rod (12) is in contact with the limiting post (13).

2. The folding material lifting platform for a tunneling machine according to claim 1, characterized in that: The sliding assembly includes a fixed plate (14) and two sliding rods (15). The bottom of the fixed plate (14) is fixedly connected to the top of the base frame (1), and the two sliding rods (15) are slidably connected to the outer wall of the fixed plate (14).

3. The folding material lifting platform for a tunneling machine according to claim 2, characterized in that: One of the slide rods (15) has a symmetrical clamping block 1 (16) slidably connected to its outer wall, and the other slide rod (15) has a symmetrical clamping block 2 (19) slidably connected to its outer wall.

4. A folding material lifting platform for a tunneling machine according to claim 3, characterized in that: One of the clamping blocks (16) and the other clamping block (19) are each provided with a sliding post (17), and one end of each sliding post (17) is fixedly connected to a threaded post (18).

5. A folding material lifting platform for a tunneling machine according to claim 4, characterized in that: One end of the sliding column (17) is fixedly connected to a threaded ring (23), and the two threaded columns (18) are respectively threadedly connected to the interior of the other clamping block (16) and clamping block (19).

6. A folding material lifting platform for a tunneling machine according to claim 5, characterized in that: The other clamping block 1 (16) and clamping block 2 (19) are both provided with sliding pillar 2 (20), and one end of each of the two sliding pillar 2 (20) is fixedly connected with threaded pillar 2 (21).

7. A folding material lifting platform for a tunneling machine according to claim 6, characterized in that: The outer wall of the threaded column 2 (21) is threaded with a knob (22), which is rotatably connected to one side of one of the clamping blocks 1 (16) and 2 (19). The two sliding columns 2 (20) are respectively threaded inside the other clamping blocks 1 (16) and 2 (19).

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