Contact channel crane system

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a contact channel crane system, which comprises a crane main body, a crane frame, a vertical telescopic component and a moving component, the crane frame comprises a frame body and a longitudinal track, and the longitudinal track is fixed on the frame body; the crane main body comprises a transverse frame, a transverse rail, a driving assembly and a hoisting piece, the transverse frame is installed on the longitudinal rail in a sliding mode, the transverse rail is fixed to the transverse frame, the driving assembly is installed on the transverse rail, and the hoisting piece is connected to the driving assembly; the moving assembly is installed at the bottom of the vertical telescopic assembly, and the frame body is connected to the top of the vertical telescopic assembly. The technical problem that in the prior art, a crane system of a connection channel heading machine is difficult to adjust the postures of duct pieces in a narrow space is solved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a connecting passage crane system. Background Technology

[0002] Connecting tunnels are typically located between the up and down tunnels and connect the two main tunnels. They are used for personnel evacuation and drainage of leaking water in case of accidents, and also facilitate rapid rescue operations. Currently, there are few cases of using connecting tunnel boring machines (TBMs) to construct connecting tunnels for ultra-large diameter tunnels. Similar connecting tunnel TBMs typically have crane systems suspended on top of a trailer frame or riding on trailer frame tracks, lacking lateral movement capabilities. When the connecting tunnel has a large angle with the main tunnel, it is difficult to adjust the segment posture for segment assembly. Furthermore, the main tunnel requires multiple connecting tunnels, resulting in narrow tunnel spaces, making it difficult for lifting equipment to operate. The crane system also faces difficulties in repeated disassembly and reassembly within the main tunnel, impacting the overall machine disassembly, relocation, and construction progress. Utility Model Content

[0003] The purpose of this utility model is to provide a connecting tunnel crane system to solve the technical problem that the crane system of the existing connecting tunnel tunneling machine is difficult to adjust the attitude of the tunnel segments in narrow spaces. The specific technical solution is as follows:

[0004] This utility model provides a connecting passage crane system, including a crane body, a crane frame, a vertical telescopic component, and a moving component. The crane frame includes a frame body and a longitudinal rail, with the longitudinal rail fixed to the frame body. The crane body includes a transverse frame, a transverse rail, a drive component, and a lifting component. The transverse frame is slidably mounted on the longitudinal rail, and the transverse rail is fixed to the transverse frame. The drive component is mounted on the transverse rail, and the lifting component is connected to the drive component. The moving component is mounted at the bottom of the vertical telescopic component, and the frame body is connected to the top of the vertical telescopic component.

[0005] A further improvement of the connecting channel crane system of this utility model is that the frame body is provided with two longitudinal beams and multiple connecting beams, the multiple connecting beams are fixed at intervals on the two longitudinal beams, and each longitudinal beam is fixed with a longitudinal track.

[0006] A further improvement of the connecting channel crane system of this utility model is that each longitudinal beam is provided with a rack, the transverse frame is provided with a gear meshing with the rack, and the drive assembly includes a rotary drive element that drives the gear to rotate.

[0007] A further improvement of the connecting passage crane system of this utility model is that a height adjustment element is provided between the rack and the longitudinal beam.

[0008] A further improvement of the connecting channel crane system of this utility model is that the vertical telescopic component includes multiple telescopic columns, each telescopic column including an inner cylinder, an outer cylinder and a vertical drive component. The outer cylinder is sleeved on the outer periphery of the inner cylinder, and the vertical drive component is installed in the inner cylinder and connected to the inner wall of the outer cylinder.

[0009] A further improvement of the connecting channel crane system of this utility model is that the telescopic column also includes a safety pin, and the inner cylinder and the outer cylinder are respectively provided with openings for the safety pin to be inserted.

[0010] A further improvement of the connecting channel crane system of this utility model is that a sliding bearing is installed between the inner cylinder and the outer cylinder.

[0011] A further improvement of the connecting channel crane system of this utility model is that the moving component includes a plurality of traveling wheels installed one-to-one with the bottom of the telescopic column.

[0012] A further improvement of the connecting channel crane system of this utility model is that the drive assembly includes a drive trolley, and a swing mechanism is provided between the drive trolley and the lifting component. The swing mechanism includes a suspension lug fixed on the drive trolley and a connecting shaft fixed on the lifting component. The connecting shaft has an outer spherical section connected to the suspension lug.

[0013] A further improvement of this utility model's connecting channel crane system is that a maintenance platform is connected to the outer periphery of the frame.

[0014] The application of the technical solution of this utility model has the following beneficial effects:

[0015] This utility model relates to a connecting tunnel crane system. Through the arrangement of longitudinal and transverse tracks, the longitudinal and transverse positions of the lifting components can be adjusted, facilitating the adjustment of the tunnel segment posture and adapting to the orientation of the connecting tunnel. This solves the technical problem of existing connecting tunnel tunnel boring machine crane systems struggling to adjust segment posture in confined spaces. Furthermore, the inclusion of vertical telescopic components allows the crane system to adapt to different main tunnel inner diameters, improving the installation conditions of the connecting tunnel boring machine within the tunnel. The movable components facilitate the transfer of the crane system within the tunnel.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

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

[0019] Figure 2 This is a schematic diagram of the crane frame of the connecting passage crane system of this utility model;

[0020] Figure 3 This is a schematic diagram of the main structure of the crane body of the connecting channel crane system of this utility model;

[0021] Figure 4 This is a vertical sectional view of the telescopic column of the connecting channel crane system of this utility model;

[0022] Figure 5 This is a side view of the connecting passage crane system of this utility model for segment hoisting;

[0023] Figure 6 This is a top view of the connecting passage crane system of this utility model for segment hoisting.

[0024] The components include: 1. Crane body; 101. Rotary drive component; 1011. Gear; 102. Horizontal rail; 103. Drive trolley; 104. Swing device; 105. Lifting component; 106. Horizontal frame; 2. Crane frame; 201. Longitudinal rail; 202. Rack; 203. Frame body; 204. Guide and positioning assembly; 205. Connecting beam; 3. Vertical telescopic assembly; 301. Vertical drive component; 302. Inner cylinder; 303. Outer cylinder; 3031. Cylinder seat; 304. Sliding bearing; 305. Safety pin; 4. Traveling wheels; 5. Maintenance platform; 6. Electrical system; 7. Material transport vehicle; 8. Segment; 9. Slag hopper; 10. Main tunnel; 11. Connecting passage. Detailed Implementation

[0025] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] See Figures 1-6 As shown, a connecting passage crane system includes a crane body 1, a crane frame 2, a vertical telescopic assembly 3, and a moving assembly. The crane frame 2 includes a frame body 203 and a longitudinal rail 201, with the longitudinal rail 201 fixed to the frame body 203. The crane body 1 includes a transverse frame 106, a transverse rail 102, a drive assembly, and a lifting component 105. The transverse frame 106 is slidably mounted on the longitudinal rail 201, and the transverse rail 102 is fixed to the transverse frame 106. The drive assembly is mounted on the transverse rail 102, and the lifting component 105 is connected to the drive assembly. The moving assembly is mounted at the bottom of the vertical telescopic assembly 3, and the frame body 203 is connected to the top of the vertical telescopic assembly 3.

[0027] Furthermore, an electrical system 6 and a hydraulic system are installed on the frame body 203 to provide hydraulic and electric power to the entire crane system. A guide positioning assembly 204 is provided on the side end face of the frame body 203. The guide positioning assembly 204 includes guide holes and guide posts. Guide holes and guide posts can be respectively installed on two frame bodies 203. The guide posts are conical. By gradually inserting the conical guide posts into the guide holes, the two frame bodies 203 are guided and positioned within the tunnel, facilitating the bolting of the two frame bodies 203 into a whole. The number of frame bodies 203 is not limited to two and can be set according to the actual length on site.

[0028] In this embodiment, there are two crane bodies 1. The two crane bodies 1 are controlled by the electrical system 6 to operate collaboratively or independently to meet the complex lifting requirements of materials. This utility model has a lateral movement function in the direction of the connecting channel 11, which can adjust the posture of the segment 8 to adapt to the posture of the connecting channel 11. In addition, it increases the utilization rate of the internal storage space of the ultra-large diameter connecting channel crane system. Moreover, it adopts the structure of the frame body 203 and can adopt multiple splicing structures, so that there is a certain material storage space inside the frame body 203, which improves the efficiency of material transport vehicle 7 in transferring materials from outside the tunnel, thereby improving the overall construction efficiency of the equipment. This solves the problem that the traditional connecting channel crane system is short in length, has a small number of stored segments 8 and slag hoppers 9, and can only transport a small number of segments 8 or slag hoppers 9 at one time by rubber-wheeled vehicles. Moreover, the construction site of the connecting channel 11 is mostly far from the starting shaft, and it takes a lot of time to transport materials once, resulting in low transportation efficiency and thus very low overall construction efficiency.

[0029] Preferred, such as Figure 2 As shown, the frame 203 has two longitudinal beams and multiple connecting beams 205. The multiple connecting beams 205 are fixed at intervals to the two longitudinal beams, and each longitudinal beam is fixed with a longitudinal rail 201. The connecting beams 205 are used to provide rigidity to the crane frame 2 and prevent deformation during transportation and use.

[0030] Preferred, such as Figure 2 and Figure 3 As shown, each longitudinal beam is equipped with a rack 202, and the transverse frame 106 is equipped with a gear 1011 meshing with the rack 202. The drive assembly includes a rotary drive 101 that drives the gear 1011 to rotate. Through the transmission of the gear 1011 and rack 202, slippage and skidding in steep gradients are avoided, improving the safety and reliability of the crane body 1's drive and braking, making it suitable for driving the movement of the crane body 1 in the main tunnel 10 with steep gradients.

[0031] Preferably, a height adjustment element is provided between the rack 202 and the longitudinal beam. In this embodiment, the height adjustment element is a shim. By adjusting the number of shims, the height of the rack 202 is adjusted, thereby adjusting the meshing of the gear 1011 of the crane body 1 with the rack 202, thus selecting whether the movement of the transverse beam is through sliding on the longitudinal rail 201 or through the meshing transmission of the gear 1011 and the rack 202.

[0032] Preferred, such as Figure 4 As shown, the vertical telescopic assembly 3 includes multiple telescopic columns, each comprising an inner cylinder 302, an outer cylinder 303, and a vertical drive component 301. The outer cylinder 303 is fitted around the outer periphery of the inner cylinder 302, and the vertical drive component 301 is installed within the inner cylinder 302 and connected to the inner wall of the outer cylinder 303. The vertical drive component 301 can be a linear drive component such as a hydraulic cylinder, pneumatic cylinder, screw, or lead screw. In this embodiment, the vertical drive component 301 is a hydraulic cylinder. Hydraulic cylinder seats 3031 are respectively provided inside the inner cylinder 302 and the outer cylinder 303. The hydraulic cylinder connects the inner and outer cylinders 303 into a whole through the hydraulic cylinder seat 3031 and the hydraulic cylinder pin. When the crane system is transported within the tunnel, the hydraulic cylinder retracts completely, significantly reducing the height of the crane system and avoiding interference with other positions during transport. This allows it to adapt to different inner diameters of the main tunnel 10, eliminating the need for repeated disassembly and reassembly and shortening the overall installation time. The hydraulic system can be provided by the tunnel boring machine in the connecting passage 11. The hydraulic system controls the synchronous lifting and lowering of all cylinders, preventing jamming due to asynchronous lifting and lowering of the cylinders in the vertical telescopic assembly 3. If the vertical telescopic assembly 3 experiences jamming (i.e., a significant difference in the lifting and lowering stroke of the vertical telescopic assembly 3), the valve group of the vertical telescopic assembly 3 is individually controlled to force all telescopic column assemblies to have the same lifting and lowering stroke to avoid jamming. The height of the crane system is adjusted by raising and lowering the vertical telescopic assembly 3, adapting to different tunnel conditions and allowing for the assembly of the crane system in a suitable space to avoid interference with other locations.

[0033] Preferably, the telescopic column also includes a safety pin 305, and corresponding openings are provided on the inner cylinder 302 and the outer cylinder 303 for inserting the safety pin 305. After the inner cylinder 302 rises and falls a certain distance, the safety pin 305 is inserted through the outer cylinder 303 to lock the inner cylinder 302 and the outer cylinder 303, preventing the frame 203 from collapsing due to the failure of the hydraulic cylinder or the hydraulic cylinder pin, and improving the safety and reliability of the telescopic column.

[0034] Preferably, a sliding bearing 304 is installed between the inner cylinder 302 and the outer cylinder 303, so that the inner cylinder 302 and the outer cylinder 303 fit tightly together and prevent the inner cylinder 302 from jamming during extension and retraction. In addition, a key is provided on the inner wall of the outer cylinder 303, which cooperates with the keyway of the inner cylinder 302 to prevent the inner and outer cylinders 303 from rotating relative to each other and causing uncontrollable factors.

[0035] Preferably, the movable component includes a plurality of wheels 4 installed one-to-one with the bottom of the telescopic column. These wheels 4 are preferably omnidirectional wheels to allow for 360° free rotation, improving the mobility of the crane system.

[0036] Preferably, the drive assembly includes a drive trolley 103, and a swing mechanism is provided between the drive trolley 103 and the lifting member 105. The swing mechanism includes a suspension lug fixed to the drive trolley 103 and a connecting shaft fixed to the lifting member 105. The connecting shaft has an outer spherical section connected to the suspension lug. The outer spherical section can improve the stress distribution between the suspension lug and the connecting shaft within a certain angle range. The lifting member 105 can swing at a certain angle through the swing device 104 to avoid damage caused by oblique pulling of the lifting member 105. The drive trolley 103 is provided with a friction wheel, which can be driven by a motor to rotate on the transverse track 102, thereby realizing the lateral movement of the lifting member 105. In another embodiment, the friction wheel drive can also be replaced by a hydraulic cylinder drive, a gear 1011 rack 202 drive, or a sprocket and chain drive. In this embodiment, the lifting member 105 is an electric hoist.

[0037] Preferably, a maintenance platform 5 is connected to the outer periphery of the frame 203 for maintaining the crane body 1 and the frame 203. The maintenance platform 5 can adopt a folding structure to avoid exceeding the size limits of the crane system and reduce transportation costs.

[0038] When there is a large angle between the main tunnel 10 and the connecting passage 11, the crane system of the connecting passage operates as follows:

[0039] Step 1: As Figure 5 As shown, after the material transport vehicle 7 transports the ring segment 8 (divided into upper and lower sections) to the designated area within the crane system, the two crane bodies 1 operate synchronously to unload all the ring segment 8 from the material transport vehicle 7 and store it in the area ahead. This avoids the material transport vehicle 7 having to repeatedly transfer the segment 8 and the slag hopper 9 due to insufficient storage space within the crane system.

[0040] Step Two: As Figure 6 As shown, two crane bodies 1 lift a segment 8 and travel a suitable distance. Then, the two crane bodies 1 operate independently, and the drive mechanisms in the two crane bodies 1 drive the trolleys 103 to run in opposite directions, controlling the rotation of the segment 8. The segment 8 rotates until it is parallel to the connecting channel 11, and then the segment 8 is assembled. If the connecting holes of the segment 8 do not align, the posture of the segment 8 can be adjusted by controlling the different lifting heights of the two lifting components 105.

[0041] This utility model's connecting tunnel crane system, through the arrangement of longitudinal rails 201 and transverse rails 102, allows for adjustment of the longitudinal and transverse positions of the lifting component 105. This facilitates the adjustment of the lifting component 105's posture of the tunnel segment 8 and adapts to the posture of the connecting tunnel 11, solving the technical problem in existing connecting tunnel 11 tunnel boring machine crane systems where it is difficult to adjust the posture of the tunnel segment 8 in confined spaces. Furthermore, the inclusion of vertical telescopic components allows the crane system to adapt to different inner diameters of the main tunnel 10, improving the installation conditions of the connecting tunnel 11 tunnel boring machine inside the tunnel. The movable components facilitate the transfer of the crane system within the tunnel.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connecting passageway crane system, characterized in that, The system includes a crane body (1), a crane frame (2), a vertical telescopic assembly (3), and a moving assembly. The crane frame (2) includes a frame body (203) and a longitudinal rail (201), with the longitudinal rail (201) fixed to the frame body (203). The crane body (1) includes a transverse frame (106), a transverse rail (102), a drive assembly, and a lifting component (105). The transverse frame (106) is slidably mounted on the longitudinal rail (201), and the transverse rail (102) is fixed to the transverse frame (106). The drive assembly is mounted on the transverse rail (102), and the lifting component (105) is connected to the drive assembly. The moving assembly is mounted at the bottom of the vertical telescopic assembly (3), and the frame body (203) is connected to the top of the vertical telescopic assembly (3).

2. The connecting passage crane system according to claim 1, characterized in that, The frame (203) is provided with two longitudinal beams and multiple connecting beams (205). The multiple connecting beams (205) are fixed at intervals on the two longitudinal beams, and each longitudinal beam is fixed with a longitudinal track (201).

3. The connecting passage crane system according to claim 2, characterized in that, Each of the longitudinal beams is provided with a rack (202), the transverse frame (106) is provided with a gear (1011) meshing with the rack (202), and the drive assembly includes a rotary drive (101) that drives the gear (1011) to rotate.

4. The connecting passage crane system according to claim 3, characterized in that, A height adjustment element is provided between the rack (202) and the longitudinal beam.

5. The connecting passage crane system according to claim 1, characterized in that, The vertical telescopic assembly (3) includes multiple telescopic columns. Each telescopic column includes an inner cylinder (302), an outer cylinder (303), and a vertical drive component (301). The outer cylinder (303) is sleeved on the outer periphery of the inner cylinder (302). The vertical drive component (301) is installed in the inner cylinder (302) and connected to the inner wall of the outer cylinder (303).

6. The connecting passage crane system according to claim 5, characterized in that, The telescopic column also includes a safety pin (305), and the inner cylinder (302) and the outer cylinder (303) are respectively provided with openings for the safety pin (305) to be inserted.

7. The connecting passageway crane system according to claim 5, characterized in that, A sliding bearing (304) is installed between the inner cylinder (302) and the outer cylinder (303).

8. The connecting passageway crane system according to claim 5, characterized in that, The moving component includes multiple wheels (4) installed one-to-one with the bottom of the telescopic column.

9. The connecting passage crane system according to claim 1, characterized in that, The drive assembly includes a drive trolley (103), and a swing mechanism is provided between the drive trolley (103) and the lifting member (105). The swing mechanism includes a suspension lug fixed on the drive trolley (103) and a connecting shaft fixed on the lifting member (105). The connecting shaft has an outer spherical section connected to the suspension lug.

10. The connecting passage crane system according to claim 1, characterized in that, The outer periphery of the frame (203) is connected to a maintenance platform (5).

Images