A belt conveyor for quickly dredging a rescue channel for underground rescue
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAOZUO YUXIN MASCH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-19
Smart Images
Figure CN224376811U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mine rescue equipment technology, and in particular to a belt conveyor for quickly clearing rescue channels in underground rescue operations. Background Technology
[0002] With rapid economic development, the annual excavation volume of mine roadways and tunnels is nearly 20,000 kilometers, and mine collapses occur frequently. When personnel are trapped, constructing a safe and efficient rescue passage is the most effective rescue method. Currently, mine collapse rescue mainly relies on excavating small pilot tunnels and bypassing roadways, which are inefficient and unsafe. When underground or in tunnel conditions permit, using an underground rescue drilling rig to construct a large-diameter rescue passage through the collapsed section is the most direct, safest, and most efficient approach. Afterwards, a device can be installed in the confined space below the rescue drilling rig to transport the excavated material outwards.
[0003] However, due to the narrow space of the channel, conventional belt conveyors are large, bulky, and heavy, making it difficult to install them in the channel to transport materials out of the narrow space; moreover, such belt conveyors are not easy to disassemble and are relatively troublesome to install. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a belt conveyor for quickly clearing rescue channels in underground rescue operations.
[0005] To achieve the above objectives, this utility model is implemented according to the following technical solution:
[0006] A belt conveyor for rapidly clearing rescue channels in underground rescue operations includes a frame comprising a head section frame, a middle section frame, and a tail section frame. The tail of the head section frame is hinged to the front of the middle section frame. The tail of the middle section frame is detachably connected to the front of the tail section frame to form a horizontal section frame. A vertically arranged support leg is detachably connected to the lower end face of the front of the head section frame. A belt drive wheel is rotatably mounted at the head of the head section frame, and a screw tensioning device is installed at the tail of the tail section frame. The machine has a belt driven pulley, and a conveyor belt connects the belt drive pulley and the belt driven pulley. The head section frame, the middle section frame and the tail section frame are respectively provided with height-adjustable upper conveyor belt idlers between their side walls. The middle section frame and the tail section frame are respectively provided with height-adjustable lower conveyor belt idlers between their side walls. The front end of the middle section frame and the tail end of the head section frame are respectively provided with height-adjustable lower conveyor belt pressure rollers between their side walls. The front end of the middle section frame and the tail end of the head section frame are provided with upper conveyor belt pressure rollers on both sides.
[0007] Furthermore, several strip-shaped holes are respectively opened on the two side walls of the head section frame, the middle section frame and the tail section frame. The roller shafts of the upper conveyor belt idler / lower conveyor belt idler / lower conveyor belt pressure roller pass through the two side strip-shaped holes. A limiting block is fixed to the outer side wall of the frame outside the strip-shaped hole. A bearing is fixedly installed in the limiting block, and the end of the roller shaft is fixed in the inner ring of the bearing.
[0008] Furthermore, the upper conveyor belt pressure roller is installed on both sides of the frame via a bracket and a bearing seat. The bracket is fixed on the two side walls of the frame, and the bearing seat is fixed on the upper end face of the bracket. A bearing is fixed inside the bearing seat, and one end of the roller shaft of the upper conveyor belt pressure roller is fixed in the inner ring of the bearing. The lower end face of the upper conveyor belt pressure roller is in contact with the upper end face of the upper conveyor belt.
[0009] Furthermore, the angle between the head section frame and the horizontal plane can be adjusted within a range of 0°-16°.
[0010] Furthermore, the tail end of the middle section frame is connected to the front end of the tail section frame by bolts and nuts.
[0011] Compared with existing technologies, this utility model adopts a modular frame, which is easy to assemble; the front end and head section of the middle frame are hinged to adjust the angle of the head section frame (0°-16°); the upper conveyor belt pressure roller can be used to correct the conveyor belt deviation; the frame is equipped with roller mounting slots; the tail section frame adopts a spiral tensioning device, which can be used to adjust belt deviation and tighten the belt, ensuring the reliability of the belt conveyor operation; the entire equipment is placed directly under the rescue drilling rig, without the need for foundation fixation, and moves with the equipment, is lightweight, and easy to move. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 for Figure 1 AA sectional view. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model.
[0015] like Figure 1As shown in the illustration, this embodiment exemplarily demonstrates a belt conveyor for rapidly clearing rescue channels in underground rescue operations. The conveyor includes a frame comprising a head section frame 1, a middle section frame 2, and a tail section frame 3. The tail of the head section frame 1 is hinged to the front of the middle section frame 2. The tail of the middle section frame 2 is connected to the front of the tail section frame 3 via bolts and nuts to form a horizontal section frame. A vertically arranged support leg 5 is detachably connected to the lower end face of the front of the head section frame 1. Exemplarily, when the support leg 5 is installed, the angle between the head section frame 1 and the horizontal plane in this embodiment is 13°. A belt drive wheel 4 is rotatably mounted at the head of the head section frame 1, driven by a hydraulic motor mounted on the head section frame 1. The tail of the tail section frame 3 is connected to a screw tensioning device 10 (which can directly...). Using our company's patent application number CN202121456186.3, entitled "A Spiral Tensioning Device for the Tail End of a Belt Conveyor," the main function of which is to adjust belt misalignment and tighten the belt, a belt driven pulley 6 is installed, and a conveyor belt 7 is connected between the belt drive pulley 4 and the belt driven pulley 6; height-adjustable upper conveyor belt idlers 9 are respectively provided between the two side walls of the head section frame 1, the middle section frame 2, and the tail section frame 3; height-adjustable lower conveyor belt idlers 11 are respectively provided between the two side walls of the middle section frame 2 and the tail section frame 3; height-adjustable lower conveyor belt pressure rollers 12 are respectively provided between the front end of the middle section frame 2 and the two side walls of the tail end of the head section frame 1; and upper conveyor belt pressure rollers 13 are provided between the front end of the middle section frame 2 and the two side walls of the tail end of the head section frame 1.
[0016] The head section frame 1, the middle section frame 2, and the tail section frame 3 each have several strip-shaped holes 8 on their side walls. The roller shafts of the upper conveyor belt idler 9, the lower conveyor belt idler 11, and the lower conveyor belt pressure roller 12 pass through the strip-shaped holes 8 on both sides. A limiting block is provided outside the strip-shaped hole 8 and is fixed to the outer side wall of the frame by bolts. A bearing is fixed and installed inside the limiting block. The end of the roller shaft is fixed in the inner ring of the bearing. The height of the idler can be adjusted by the cooperation of the strip-shaped hole 8 and the limiting block.
[0017] like Figure 2 As shown, the upper conveyor belt pressure roller 13 is mounted on both sides of the frame via a bracket 14 and a bearing seat. The bracket 14 is fixed to the side walls of the frame, and the bearing seat is fixed to the upper end face of the bracket 14. A bearing is fixed inside the bearing seat, and one end of the roller shaft of the upper conveyor belt pressure roller 13 is fixed in the inner ring of the bearing. The lower end face of the upper conveyor belt pressure roller 13 is in contact with the upper end face of the upper conveyor belt 7. In this embodiment, the upper conveyor belt pressure roller 13 is mainly used for correcting the deviation of the conveyor belt 7.
[0018] In use, the tail of the head section frame 1 and the front of the middle section frame 2 are hinged together directly below the rescue drilling rig using a hinge plate. The tail of the middle section frame 2 and the front of the tail section frame 3 are connected with bolts and nuts to form a horizontal section frame. Support legs 5 of appropriate height are installed according to the angle of the head section frame 1. Then, the belt drive wheel 4, belt driven wheel 6, and conveyor belt 7 are installed. Next, the corresponding upper conveyor belt idler roller 9, lower conveyor belt idler roller 11, lower conveyor belt pressure roller 12, and upper conveyor belt pressure roller 13 are installed. The tension of the entire conveyor belt 7 is adjusted by adjusting the height of the upper conveyor belt idler roller 9, lower conveyor belt idler roller 11, and lower conveyor belt pressure roller 12, as well as by adjusting the spiral tensioning device. Finally, the belt drive wheel 4 is driven by a hydraulic motor to complete the assembly of the entire conveyor belt. The hydraulic motor shares the same hydraulic system as the rescue drilling rig. The entire equipment is placed directly below the rescue drilling rig without the need for foundation fixation. It moves with the equipment, is lightweight, and easy to move, transporting the excavated material from the rescue drilling rig to the outside.
[0019] The technical solution of this utility model is not limited to the specific embodiments described above. All technical modifications made based on the technical solution of this utility model shall fall within the protection scope of this utility model.
Claims
1. A belt conveyor for use in a rapid unblocking rescue passage for underground rescue, comprising a frame, characterized in that: The frame includes a head section frame, a middle section frame, and a tail section frame. The tail of the head section frame is hinged to the front of the middle section frame. The tail of the middle section frame is detachably connected to the front of the tail section frame to form a horizontal section frame. A vertically arranged support leg is detachably connected to the lower end face of the front of the head section frame. A belt drive wheel is rotatably mounted at the head of the head section frame, and a belt driven wheel is mounted at the tail of the tail section frame via a spiral tensioning device. A conveyor belt connects the belt drive wheel and the belt driven wheel. Height-adjustable upper conveyor belt idlers are respectively provided between the side walls of the head section frame, the middle section frame, and the tail section frame. Height-adjustable lower conveyor belt idlers are respectively provided between the side walls of the middle section frame and the tail section frame. Height-adjustable lower conveyor belt pressure rollers are respectively provided between the front of the middle section frame and the side walls of the tail of the head section frame. Upper conveyor belt pressure rollers are provided on both sides of the front of the middle section frame and the tail of the head section frame.
2. The belt conveyor for a rapid unblocking rescue passage for a downhole rescue according to claim 1, characterized in that: The head section frame, middle section frame and tail section frame are provided with several strip-shaped holes on both sides. The roller shafts of the upper conveyor belt idler / lower conveyor belt idler / lower conveyor belt pressure roller pass through the strip-shaped holes on both sides. A limiting block is fixed to the outer side wall of the frame outside the strip-shaped hole. A bearing is fixedly installed in the limiting block, and the end of the roller shaft is fixed in the inner ring of the bearing.
3. The belt conveyor for a rapid rescue passage for a downhole rescue according to claim 1, characterized in that: The upper conveyor belt pressure roller is installed on both sides of the frame via a bracket and a bearing seat. The bracket is fixed on the two side walls of the frame, and the bearing seat is fixed on the upper end face of the bracket. A bearing is fixed inside the bearing seat, and one end of the roller shaft of the upper conveyor belt pressure roller is fixed in the inner ring of the bearing. The lower end face of the upper conveyor belt pressure roller is in contact with the upper end face of the upper conveyor belt.
4. The belt conveyor for a rapid rescue passage for a downhole rescue according to claim 1, characterized in that: The angle between the head section frame and the horizontal plane can be adjusted from 0° to 16°.
5. The belt conveyor for a rapid rescue passage for a downhole rescue according to claim 1, characterized in that: The tail end of the middle section frame is connected to the front end of the tail section frame by bolts and nuts.