Long-distance material hoisting system of heading machine

Abstract

The utility model discloses a long-distance material lifting system of a heading machine, which solves the problem that the efficiency of transferring materials of the heading machine from the tail part of equipment to a host area is low under the working conditions of narrow space, long distance, small turning and large gradient in the prior art. The long-distance material hoisting system of the heading machine comprises a crane track arranged on a trolley, the crane track is connected to the top of the trolley through a flexible hoisting piece, and a movable crane is arranged on the crane track; the crane track is formed by hinging a plurality of short-distance track sections end to end. Compared with the prior art, the crane track formed by hinging a plurality of short-distance track sections end to end is matched with the flexible hanging piece to be connected to the top of the trolley, so that the two short-distance track sections can relatively swing and pitch within a certain range to adapt to the working conditions of small turning and longitudinal curve.

Description

Technical Field

[0001] This utility model relates to the field of tunneling machine technology, and in particular to a material hoisting device. Background Technology

[0002] Currently, the full-face tunneling machine method is widely used in highways, railways, water diversion, pumped storage, and mining due to its high efficiency, safety, and environmental friendliness. The construction process mainly includes several key procedures such as tunneling, initial support, spoil transportation, and material transportation. Among these, the efficiency of material transportation directly restricts construction efficiency and cost.

[0003] In traditional material transport designs, such as the hoisting device and tunneling machine disclosed in Chinese Patent No. CN105819334 A, although it can transport tunnel segments from the segment transport vehicle to the grabbing area of ​​the segment assembly machine, improving tunnel excavation efficiency, its specific track configuration is unsuitable for confined tunnel spaces. Existing material transport methods, especially in confined tunnel spaces, long distances, sharp turns, and steep gradients, cannot accommodate conventional train sets or rubber-tired vehicles that are too large to enter the TBM equipment. This necessitates manual handling or multiple transport systems working in relay, resulting in low efficiency, high safety risks, long material transport times, machine downtime, and compromised overall tunneling efficiency. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a long-distance material hoisting system for tunneling machines, which solves the problem of low efficiency in transferring materials from the tail of the tunneling machine to the main unit area under conditions of confined space, long distance, small turns, and steep slopes.

[0005] The technical solution of this utility model is implemented as follows: a long-distance material hoisting system for a tunneling machine includes a crane rail set on a trolley, the crane rail being connected to the top of the trolley via a flexible hoisting component, and a mobile crane being installed on the crane rail; the crane rail is formed by several short-distance rail sections hinged end to end, and the two short-distance rail sections can swing and pitch relative to each other in conjunction with the flexible hoisting component to adapt to working conditions during small turns and longitudinal curves.

[0006] In a further preferred embodiment, one end of the short-distance track section is provided with a vertically arranged hinge shaft, and the other end is provided with a limiting plate. The hinge shaft is hinged to the adjacent limiting plate to realize the left and right swing of two adjacent short-distance track sections, which is suitable for adjustment in small turning conditions.

[0007] Further preferably, the upper part of both ends of the short-distance track section is provided with elongated ear plates, and the elongated ear plates of two adjacent short-distance track sections correspond to each other and are locked by bolts; loosening the bolts allows for relative pitching of two adjacent short-distance track sections, which is suitable for adjusting working conditions such as longitudinal curves and steep slopes.

[0008] In a further preferred embodiment, the flexible lifting component includes a connecting lug and a chain. The connecting lug is fixed to the top of the trolley, and one end of the chain is connected to the connecting lug, while the other end is equipped with a fastener for connecting the crane rail. The flexible lifting component is mainly used to connect short-distance rail sections to the trolley and can swing left, right, up, and down to ensure that the crane rail can adapt to different working conditions.

[0009] In a further preferred embodiment, the connecting ear plate is connected to the top plate of the trolley via a pin, and the chain is a chain or wire rope with a certain strength and flexibility. The chain or wire rope is provided with a locking device for adjusting its length; and for adjusting the vertical distance of the short track section.

[0010] Further preferably, the mobile crane is a pneumatic crane, and the crane rail is equipped with a pipeline extension device connected to the pneumatic crane; the pipeline extension device mainly serves as an extension of the air supply pipeline within the travel range of the pneumatic crane, ensuring smooth air supply and reducing air pressure loss.

[0011] Further preferably, the pipeline extension device includes a towing trolley that matches the crane track. The towing trolley is equipped with an air pipe, the air inlet of which is connected to an external air source, and the air outlet of which is connected to the air inlet of the pneumatic crane. The towing trolley drags the air pipe along with the pneumatic crane to provide sufficient air supply to the pneumatic crane while ensuring smooth airflow.

[0012] Further preferably, the pneumatic crane includes a pneumatic traction trolley that matches the crane track and is equipped with a brake, and the pneumatic traction trolley is equipped with at least one pneumatic hoist. The pneumatic hoist is used for lifting and transporting materials.

[0013] In another implementation, the mobile crane is an electric crane, which is matched with a crane track. The electric crane moves along the crane track to realize the lifting and transportation of materials.

[0014] Further optimization involves providing an entry point in the middle of the trolley at the end to facilitate the entry of transport vehicles.

[0015] The beneficial effects of this invention are as follows: Compared with existing technologies that use manual handling or multiple cranes for long-distance material transfer, this invention employs a crane track formed by hinged ends of several short-distance track sections, connected to the top of the trolley with flexible lifting components. This allows the two short-distance track sections to swing and pitch relative to each other within a certain range, adapting to conditions such as small turns and longitudinal curves. Through the synergistic effect of the crane track and the flexible lifting components, the crane track can adapt to the roadway posture via the flexible lifting device during turns and pitching sections, thereby improving the safety, stability, and speed of material transportation.

[0016] This utility model is routinely mounted on a tunneling machine. A hoisting system covers the front and rear ends of the tunneling machine and is a flexible long-distance hoisting device that can adapt to long-distance, small-turn, and steep-slope working conditions. It enables efficient and safe transportation of materials under long-distance, small-turn, and steep-slope working conditions, improves construction efficiency, reduces manual handling workload, and solves the problem of low efficiency in transferring materials required by the tunneling machine from the rear of the equipment to the main unit area under confined space, long distance, small-turn, and steep-slope working conditions. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the interaction between the flexible lifting component of this utility model and the crane track;

[0020] Figure 3 This is a schematic diagram of a mobile crane, specifically a pneumatic crane.

[0021] Figure 4 This is a schematic diagram of a short-distance track section structure;

[0022] Figure 5 This is a schematic diagram of the pipeline extension device. Detailed Implementation

[0023] 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.

[0024] Example 1, such as Figure 1 As shown, a long-distance material handling system for a tunneling machine includes a crane track 1 mounted on a trolley 5. The crane track 1 primarily serves as the running track for a mobile crane and pipeline extension device. The crane tracks between adjacent trolleys are connected to form a complete track for rapid material transfer from the rear of the equipment to the main equipment area. In this embodiment, the crane track 1 is connected to the top of the trolley 5 via a flexible lifting member 2. The flexible lifting member 2 is mainly used to connect the short-distance crane track to the trolley and can swing left, right, up, and down, ensuring that the crane track can adapt to different working conditions. A mobile crane 3 is mounted on the crane track 1, which can move relative to the crane track and mainly performs material handling. It should be noted that the crane track 1 in this embodiment is formed by several short-distance track sections 104 hinged end-to-end. Two short-distance track sections can swing and pitch relative to each other within a certain range, solving the problem of low efficiency in rapidly transferring materials from the rear of the tunneling machine to the main equipment area under conditions of confined space, long distance, small turns, and steep slopes.

[0025] In this embodiment, the trolley 5 at the end has an entrance in the middle to facilitate the entry of the transport vehicle. One end of the short-distance track section 104 has a vertically arranged hinge shaft 102 at its bottom, and the other end has a limiting plate 103 at its bottom. The hinge shaft 102 is hinged to the adjacent limiting plate 103. The vertical arrangement of the hinge shaft and its hinged engagement with the limiting plate allows for relative left-right swinging between adjacent sections, facilitating lifting operations under tight turns. Furthermore, in this embodiment, both ends of the short-distance track section 104 have elongated perforated lugs 101 at their upper parts. The front elongated perforated lugs 101 of adjacent short-distance track sections 104 correspond to the rear elongated perforated lugs, and are locked in place by bolts when adjusted to the appropriate position. When the pitch angle of the short-distance track section needs adjustment, the bolts are loosened, and the corresponding short-distance track section is pitched to adapt to rapid lifting operations on longitudinal curves and steep slopes.

[0026] Example 2, such as Figure 2As shown, a long-distance material hoisting system for a tunneling machine, based on Embodiment 1, includes a flexible hoisting component 2 comprising a connecting lug 201 and a chain 202. The connecting lug 201 is fixed to the top of the trolley 5 by a pin or bolt. One end of the chain 202 is connected to the connecting lug 201, and the other end is provided with a fastener 203 for connecting the crane track 1. The flexible hoisting component is mainly used to connect short-distance track sections to the trolley and can swing left, right, up, and down to ensure that the crane track can adapt to different working conditions. Specifically, the connecting lug 201 is connected to the top plate of the trolley 5 by a pin, and the chain 202 is a chain or wire rope. The chain or wire rope has a certain strength and flexibility, which can satisfy the relative swing and pitch of the track, and can also bear the weight of the mobile crane and materials. The chain or wire rope is equipped with locking fasteners 204 for adjusting its length as needed. Adjusting the downward extension length of the chain or wire rope adjusts the height of the crane track. Once at the appropriate height, the locking fasteners secure the chain or wire rope, ensuring its stability. The upper part of the crane track is designed with elongated lifting lugs, and the lower part with hinge shafts and limiting plates. The flexible lifting device, a chain or wire rope structure, can accommodate a certain amount of swing. During turns and pitching sections, the crane track can adapt to the roadway posture through the flexible lifting device.

[0027] Example 3, such as Figure 5 As shown, a long-distance material handling system for a tunneling machine, based on embodiment 1 or 2, features a pneumatic crane 3 as the mobile crane in this embodiment. A pipeline extension device 4, connected to the pneumatic crane, is mounted on the crane track 1. The pipeline extension device primarily extends the air supply pipeline within the travel range of the pneumatic crane, ensuring smooth air supply while reducing air pressure loss. The pipeline extension device 4 includes a towing trolley 401 that matches the crane track 1; a sliding rail trolley can also be used as needed. The towing trolley 401 is equipped with an air pipe 402, which is mounted on the crane track via load-bearing wheels. The air inlet of the air pipe 402 is connected to an external air source, and the air outlet is connected to the air inlet of the pneumatic crane. The towing trolley drags the air pipe along with the pneumatic crane to provide sufficient air supply while ensuring smooth gas flow.

[0028] like Figure 3As shown, the pneumatic crane in this embodiment includes a pneumatic traction trolley 302 that matches the crane track 1 and is equipped with a brake 303. The pneumatic traction trolley 302 is mounted on the crane track via load-bearing wheels. At least one pneumatic hoist 301 is mounted on the pneumatic traction trolley 302 for lifting and transporting materials. The pneumatic crane described above has a simple and lightweight structure, a small headroom, and simple power source requirements. Materials required by the tunneling machine are transported to the rear of the equipment via rubber-wheeled vehicles or mining trucks. The last trolley section is specially designed with an opening in the middle, allowing transport vehicles to enter and reach the designated position. The pneumatic crane is driven by high-pressure air input through the air pipe of the pipeline extension device, moving to the last trolley section. The pneumatic hoist lifts the materials from the transport vehicle. The pneumatic crane moves forward on the short-distance crane track until it reaches the front of the equipment, completing the material transport. This lifting system can efficiently and safely transfer materials to the final position in one go and can adapt to various working conditions such as horizontal turns and longitudinal curve adjustments.

[0029] Example 4: A long-distance material handling system for a tunneling machine. Based on Example 1 or 2, this example differs from Example 3 in that the mobile crane 3 is an electric crane, matched with the crane track 1. The electric crane utilizes electricity to move and lift materials, is easy to operate, and can also achieve rapid material handling.

[0030] Compared with existing technologies that use manual handling or multiple cranes to transport materials over long distances, this material hoisting system can efficiently and safely transport materials to their final location in one go. It can also adapt to various working conditions such as horizontal turns and longitudinal curve adjustments, improving material transportation efficiency, reducing labor costs, and further enhancing the working efficiency of the tunneling machine.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 long-distance material hoisting system for a tunneling machine, characterized in that: It includes a crane track (1) set on the trolley (5), the crane track (1) is connected to the top of the trolley (5) through a flexible lifting member (2), and a mobile crane (3) is provided on the crane track (1); the crane track (1) is formed by several short track sections (104) hinged end to end.

2. The long-distance material hoisting system for tunneling machines according to claim 1, characterized in that: The short track section (104) has a vertically arranged hinge shaft (102) at one end and a limiting plate (103) at the other end. The hinge shaft (102) is hinged to the adjacent limiting plate (103).

3. The long-distance material hoisting system for tunneling machines according to claim 2, characterized in that: The upper part of both ends of the short track section (104) is provided with long hole ear plates (101), and the long hole ear plates (101) of two adjacent short track sections (104) correspond to each other and are locked by bolts.

4. The long-distance material hoisting system for tunneling machines according to any one of claims 1 to 3, characterized in that: The flexible lifting component (2) includes a connecting ear plate (201) and a chain rope (202). The connecting ear plate (201) is fixed to the top of the trolley (5). One end of the chain rope (202) is connected to the connecting ear plate (201), and the other end is provided with a buckle (203) for connecting the crane rail (1).

5. The long-distance material hoisting system for tunneling machines according to claim 4, characterized in that: The connecting ear plate (201) is connected to the top plate of the trolley (5) by a pin, and the chain (202) is a chain or a wire rope, and the chain or wire rope is provided with a locking buckle (204) for adjusting its length.

6. The long-distance material hoisting system for tunneling machines according to any one of claims 1 to 3 and 5, characterized in that: The mobile crane (3) is a pneumatic crane, and the crane rail (1) is equipped with a pipeline extension device (4) connected to the pneumatic crane.

7. The long-distance material hoisting system for tunneling machines according to claim 6, characterized in that: The pipeline extension device (4) includes a towing trolley (401) that matches the crane rail (1). The towing trolley (401) is equipped with an air pipe (402). The air inlet of the air pipe (402) is connected to an external air source, and the air outlet of the air pipe (402) is connected to the air inlet of the pneumatic crane.

8. The long-distance material hoisting system for tunneling machines according to claim 7, characterized in that: The pneumatic crane includes a pneumatic traction trolley (302) that matches the crane track (1) and is equipped with a brake (303), and the pneumatic traction trolley (302) is provided with at least one pneumatic hoist (301).

9. The long-distance material hoisting system for tunneling machines according to any one of claims 1 to 3 and 5, characterized in that: The mobile crane (3) is an electric crane, and the electric crane is matched with the crane track (1).

10. The long-distance material hoisting system for tunneling machines according to claim 1, characterized in that: The trolley (5) at the end has an entrance in the middle that facilitates the entry of transport vehicles.

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