Spring auger conveyor
By designing a shaftless spring auger conveyor, and adopting a flexible shell and arc turning device, the problem of material conveying in curved roadways in underground coal mines has been solved, achieving efficient and safe material conveying.
Patent Information
- Application Number
- CN202423077394.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing screw conveyors are not suitable for curved roadways in underground coal mines, and loader-driven material transport is inefficient, costly, and poses safety hazards.
Design a shaftless spring auger conveyor, which uses a flexible shell and shaftless spring helical blades, combined with an arc turning device and a drive device, to realize the conveying of the flexible shell in curved tunnels.
It enables material transport that follows the tunnel boring machine underground, with a simple structure, reduced cost, strong adaptability, and high safety.
Smart Images

Figure CN223480026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underground material conveying in coal mines, specifically to a spring auger conveyor. Background Technology
[0002] In underground coal mines, as the tunnel boring machine (or tunneling machine) advances, materials are usually transported to designated locations by loaders. This method is inefficient and costly. Due to the special environment of underground tunnels, there are also certain safety hazards for personnel operating loaders.
[0003] In addition, most auger conveyors are shafted designs, making them unsuitable for curved tunnels. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a spring auger conveyor that can solve the aforementioned problems.
[0005] This utility model is achieved through the following technical solution: a spring auger conveyor, comprising: a flexible shell, shaftless spring helical blades disposed inside the flexible shell, one end of the flexible shell being a feed inlet placed in a movable hopper, the other end of the flexible shell being a discharge outlet, and a movable drive device connected to the shaftless spring helical blades being disposed at the discharge outlet end.
[0006] Furthermore, at the turning point, the flexible shell is placed inside the arc turning device, and the flexible shell can achieve arc turning and sliding within the arc turning device.
[0007] Furthermore, the arc turning device includes an arc-shaped frame, a horizontal support roller mounted on the arc-shaped frame, and vertical rollers disposed at both ends of the horizontal support roller; the flexible housing can slide between the horizontal support roller and the vertical rollers.
[0008] Furthermore, the drive unit is mounted above the belt conveyor via a track, and the drive unit can move within the track.
[0009] Furthermore, the material box is located at the end of the belt conveyor at the tail of the tunnel boring machine, and the material box can move with the tunnel boring machine.
[0010] Due to the adoption of the above technical solution, the beneficial effects of this utility model are: it can follow the tunnel boring machine underground to realize the material transportation, the structure is simple, the cost is reduced, the shaftless design can realize the material transportation in the turning tunnel, and it has strong adaptability to the tunnel terrain. Attached Figure Description
[0011] Figure 1 This is a simplified structural diagram of the present invention.
[0012] Figure 2 This is a magnified view of a section of the curved turning device.
[0013] In the diagram: 1. Flexible shell, 2. Shaftless spring helical blade, 3. Feed inlet, 4. Material box, 5. Discharge outlet, 6. Drive unit, 7. Arc turning device, 701. Arc frame, 702. Horizontal support roller, 703. Vertical roller, 8. Belt conveyor, 9. Track, 10. Drive unit wheel, 11. Tunnel boring machine, 12. Belt conveyor at the tail of the tunnel boring machine, 13. Material box wheel. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] like Figure 1 As shown, a spring auger conveyor includes: a flexible shell 1 and shaftless spring helical blades 2 disposed inside the flexible shell 1. One end of the flexible shell 1 is a feed inlet 3, which is placed in a movable material box 4. The other end of the flexible shell 1 is a discharge outlet 5, and a movable drive device 6 connected to the shaftless spring helical blades 2 is provided at the discharge outlet 5. The shaftless spring helical blades 2 are shaftless and can be bent and placed arbitrarily according to the terrain of the tunnel. In order to better fix the bending curvature and make the equipment work stably, an arc turning device 7 is provided at the tunnel bend.
[0016] At the turning point, the flexible housing 1 is placed inside the arc turning device 7, and the flexible housing 1 can achieve arc turning and sliding within the arc turning device 7.
[0017] like Figure 2 As shown, the arc turning device 7 includes an arc-shaped frame 701, on which several horizontal rollers 702 are mounted, and vertical rods 703 are mounted at both ends of each horizontal roller 702. The flexible housing 1 can slide between the horizontal rollers 702 and the vertical rods 703.
[0018] The drive unit 6 is mounted above the belt conveyor 8 via the track 9, and wheels 10 are installed below the drive unit 6 so that it can move within the track 9.
[0019] The material box 4 is located at the end of the belt conveyor 12 at the tail of the tunnel boring machine. Wheels 13 are installed below the material box 4 so that it can move forward with the tunnel boring machine 11.
[0020] During operation, the material generated by the tunnel boring machine 11 falls into the material box 4 via the belt conveyor 12. The drive unit 6 drives the shaftless spring helical blades 2 to rotate. The material enters from the feed inlet 3, is transported along the conveying direction to the discharge outlet 5, and is discharged from the discharge outlet 5 onto the belt conveyor 8 for transport to the designated location. As the tunnel boring machine 11 moves forward, it pushes the material box 13 and the drive unit 6, causing the equipment to move forward and thus follow the tunnel boring machine 11.
Claims
1. A spring auger conveyor, characterized in that, include: A flexible housing (1) and a shaftless spring helical blade (2) disposed inside the flexible housing (1). One end of the flexible housing (1) is a feed inlet (3), which is placed in a movable material box (4). The other end of the flexible housing (1) is a discharge outlet (5), which is provided with a movable drive device (6) connected to the shaftless spring helical blade (2).
2. The spring auger conveyor according to claim 1, characterized in that, At the turning point, the flexible shell (1) is placed inside the arc turning device (7), and the flexible shell (1) can achieve arc turning and sliding inside the arc turning device (7).
3. The spring auger conveyor according to claim 2, characterized in that, The arc turning device (7) includes an arc frame (701), a horizontal support roller (702) mounted on the arc frame (701), and vertical rollers (703) disposed at both ends of the horizontal support roller (702); the flexible shell (1) can slide between the horizontal support roller (702) and the vertical rollers (703).
4. The spring auger conveyor according to claim 3, characterized in that, The drive unit (6) is mounted above the belt conveyor (8) via a track (9), and the drive unit (6) can move within the track (9).
5. The spring auger conveyor according to claim 4, characterized in that, The material box (4) is located at the end of the belt conveyor (12) at the tail of the tunnel boring machine, and the material box (4) can move with the tunnel boring machine.