Temporary supporting device for roadway tunneling

Abstract

The utility model relates to the technical field of roadway tunneling protection equipment, and discloses a temporary support device for roadway tunneling, which comprises a track I, a track II is arranged on the left side of the track I, racks are arranged on the outer edges of the track I and the track II, the outer edge of the track I is connected with a moving component I and a moving component II in a sliding manner, and the moving component I and the moving component II are arranged on the track II. A connecting plate is fixedly assembled on the outer edge of the first moving assembly. A driving motor rotates to drive a gear to rotate, the gear rolls on a rack, and a first moving assembly, a second moving assembly, a fixed rod, a movable rod and a baffle can move on a first rail and a second rail, so that the problem that an existing supporting device needs to be repeatedly disassembled and assembled during use, and the working efficiency is high is solved. And after the heading machine forwards digs for a certain distance, a baffle and a stand column at the tail part of a supporting device need to be disassembled and then mounted at the front end of the supporting device, so that the problems of large physical output of personnel and low digging efficiency are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel excavation protection equipment, in particular to a temporary supporting device used for tunnel excavation. Background Art

[0002] The tunnel is a kind of passageway drilled between the surface and the ore body, which is used for ore transportation, ventilation, drainage, pedestrians, and various necessary preparation works for the new excavation of ore for metallurgical equipment. These passageways are collectively called tunnels. When the tunneling machine is mining, we need to set up protective devices above to ensure the safety of equipment and personnel.

[0003] The existing support device needs to be repeatedly disassembled and installed during use. After the tunnel boring machine has excavated forward for a certain distance, the baffle and column at the rear of the support device need to be disassembled and then installed at the front end of the support device, which results in great physical exertion of the personnel and low mining efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a temporary support device for tunnel excavation, which has the advantages of strong practicability, good stability and improved production efficiency, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a temporary support device for tunnel excavation, comprising a track one, a track two is installed on the left side of the track one, racks are installed on the outer edges of the track one and the track two, a moving component one and a moving component two are slidably connected on the outer edge of the track one, a connecting plate is fixedly installed on the outer edge of the moving component one, a driving motor is fixedly installed on the top of the connecting plate, a gear is fixedly sleeved on the power output shaft of the driving motor, and the outer edge of the gear is meshed with the rack.

[0006] As a preferred technical solution of the utility model, the moving component 1 includes a mounting bracket, and the inner cavity of the mounting bracket is equipped with transverse rollers. The transverse rollers are provided in two groups, and the two groups of transverse rollers are respectively located on both sides of track 1.

[0007] As a preferred technical solution of the utility model, a vertical plate is fixedly installed at the bottom of the mounting bracket, and vertical rollers are installed on the outer edge of the vertical plate. Two groups of vertical rollers are provided, and the two groups of vertical rollers are respectively located on both sides of track one.

[0008] As a preferred technical solution of the utility model, the tops of the movable components 1 and 2 are both equipped with fixed rods, the inner walls of the fixed rods are slidably sleeved with movable rods, and the fixed rods and movable rods are connected by a hydraulic rod.

[0009] As a preferred technical solution of the utility model, a connecting plate is fixedly installed on the top of the movable rod, a connecting column is movably connected to the inner wall of the connecting plate, a baffle is fixedly installed on the top of the connecting column, and a buffer spring is movably sleeved on the outer edge of the connecting column.

[0010] As a preferred technical solution of the utility model, the outer edges of the heads of the track one and the track two are both installed with limiting sleeves and connecting blocks, and the inner walls of the connecting blocks are installed with bolts.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The temporary support device for tunnel excavation drives the gear to rotate by driving the motor, and the gear rolls on the rack. The moving component 1, the moving component 2, the fixed rod, the movable rod and the baffle can move on the track 1 and the track 2, thereby solving the problem that the existing support device needs to be repeatedly disassembled and installed during use. When the tunnel boring machine excavates forward for a distance, the baffle and the column at the rear of the support device need to be disassembled and then installed at the front end of the support device, which leads to the problem of large physical consumption of personnel and low excavation efficiency.

[0013] 2. The temporary support device for tunnel excavation has a buffer spring between the movable rod and the baffle. When an object falls from above the tunnel, the buffer spring can be used for buffering, thereby preventing the huge impact force from causing damage to the hydraulic rod and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure on the right side of the utility model;

[0015] Figure 2 For this utility model Figure 1 A is an enlarged structural diagram;

[0016] Figure 3 It is a schematic diagram of the left three-dimensional structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in FIG.

[0018] Figure 5 This is a schematic diagram of the structure of track one and track two of the utility model.

[0019] In the figure: 1. Track 1; 2. Track 2; 21. Limit sleeve; 22. Connecting block; 23. Bolt; 3. Rack; 4. Moving component 1; 401. Mounting bracket; 402. Horizontal roller; 403. Vertical plate; 404. Vertical roller; 5. Moving component 2; 6. Connecting plate; 7. Drive motor; 8. Gear; 9. Fixed rod; 10. Movable rod; 11. Hydraulic rod; 12. Connecting plate; 13. Connecting column; 14. Buffer spring; 15. Baffle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 A temporary support device for tunnel excavation comprises a track 1, a track 2 is installed on the left side of the track 1, racks 3 are installed on the outer edges of the track 1 and the track 2, a moving component 4 and a moving component 2 5 are slidably connected on the outer edge of the track 1, a connecting plate 6 is fixedly installed on the outer edge of the moving component 4, a driving motor 7 is fixedly installed on the top of the connecting plate 6, a gear 8 is fixedly sleeved on the power output shaft of the driving motor 7, the outer edge of the gear 8 is meshed with the rack 3, the gear 8 is driven to rotate by the driving motor 7, so that the gear 8 rolls on the rack 3, so that the moving component 1 4, the moving component 2 5, the fixed rod 9, the movable rod 10 and the baffle 15 can be moved on the track 1 and the track 2, so that the device does not need to be assembled and protected after it is built, which greatly saves manpower and improves work efficiency.

[0022] In a preferred embodiment, the moving component 4 includes a mounting bracket 401, and the inner cavity of the mounting bracket 401 is installed with a transverse roller 402. Two groups of transverse rollers 402 are provided, and the two groups of transverse rollers 402 are respectively located on both sides of the track 1. By utilizing the setting of the transverse rollers 402, the two groups of transverse rollers 402 clamp the track 1, so that the two groups of transverse rollers 402 play a limiting role, so that the moving component 14 and the moving component 25 always maintain a horizontal state with the track 1 to move, thereby improving the stability of the device.

[0023] In a preferred embodiment, a vertical plate 403 is fixedly installed at the bottom of the mounting bracket 401, and vertical rollers 404 are installed on the outer edge of the vertical plate 403. Two groups of vertical rollers 404 are provided, and the two groups of vertical rollers 404 are respectively located on both sides of the track 1. By utilizing the setting of the vertical rollers 404, the two groups of vertical rollers 404 move on the track 1, so that the two groups of vertical rollers 404 play a supporting role, so that the moving component 14 and the moving component 25 can move on the track 1 more stably.

[0024] In a preferred embodiment, a fixed rod 9 is installed on the top of the movable component 1 4 and the movable component 2 5, and a movable rod 10 is slidably sleeved on the inner wall of the fixed rod 9. The fixed rod 9 and the movable rod 10 are connected by a hydraulic rod 11. The height of the movable rod 10 can be lowered by contracting the hydraulic rod 11. When moving, the movable rod 10 is lowered so that the baffle 15 above the movable rod 10 will not contact the top of the tunnel, which facilitates the movement of the equipment. At the same time, the equipment can be lowered during transportation for easy transportation.

[0025] In a preferred embodiment, a connecting piece 12 is fixedly installed on the top of the movable rod 10, and a connecting column 13 is movably connected to the inner wall of the connecting piece 12, and a baffle 15 is fixedly installed on the top of the connecting column 13. A buffer spring 14 is movably sleeved on the outer edge of the connecting column 13. By utilizing the elastic characteristics of the buffer spring 14, when an object falls from the top of the tunnel, the object falls onto the baffle 15, and the baffle 15 will drop at this time. The impact force is buffered by the buffer spring 14, so that the hydraulic rod 11 can be protected, and the hydraulic rod 11 can be prevented from exploding, thereby improving the safety of the device.

[0026] In a preferred embodiment, the outer edges of the heads of track 1 and track 2 are both installed with limiting sleeves 21 and connecting blocks 22, and the inner walls of the connecting blocks 22 are installed with bolts 23. By using the setting of the connecting block 22, the connecting block 22 at the head of track 22 is sleeved on the tail of track 1, so that track 1 and track 22 can form a straight line, and then track 1 and track 22 are fixed by bolts 23. When moving component 1 4 and moving component 2 5 are moved to track 2 2, the head of track 1 is installed at the tail of track 2 2, and then moving component 1 4 and moving component 2 5 can proceed to the next step of movement.

[0027] Working principle: when in use, lay the track 1 on the ground of the lane, then install the moving assembly 1 4, the moving assembly 2 5, the fixed rod 9, the movable rod 10 and the baffle 15 on the track 1. When the equipment needs to move forward, the head of the track 2 2 is installed on the tail of the track 1, and then the drive motor 7 is rotated to drive the gear 8 to rotate, and the gear 8 rolls on the rack 3, and the moving assembly 1 4, the moving assembly 2 5, the fixed rod 9, the movable rod 10 and the baffle 15 can move from the track 1 to the track On track 1 2, when it is necessary to move again, the head of track 1 is connected with the tail of track 2, and then the movable rod 10 is driven down by the contraction of the hydraulic rod 11. At this time, there is a gap between the baffle 15 above the movable rod 10 and the top of the tunnel, and then the moving component 1 4, the moving component 2 5, the fixed rod 9, the movable rod 10 and the baffle 15 can move forward again. When an object falls from the top of the tunnel, the object falls onto the baffle 15, and then the baffle 15 descends, and the impact force is buffered by the buffer spring 14.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary support device for tunnel excavation, comprising a track (1), characterized in that: The left side of the track one (1) is provided with a track two (2), the outer edges of the track one (1) and the track two (2) are both provided with racks (3), the outer edge of the track one (1) is slidably connected with a moving assembly one (4) and a moving assembly two (5), the outer edge of the moving assembly one (4) is fixedly provided with a connecting plate (6), the top of the connecting plate (6) is fixedly provided with a driving motor (7), a gear (8) is fixedly sleeved on the power output shaft of the driving motor (7), and the outer edge of the gear (8) is meshed with the rack (3).

2. A temporary support device for tunnel excavation according to claim 1, characterized in that: The moving component one (4) comprises a mounting bracket (401), the inner cavity of the mounting bracket (401) is equipped with a transverse roller (402), two groups of the transverse rollers (402) are provided, and the two groups of transverse rollers (402) are respectively located on both sides of the track one (1).

3. A temporary support device for tunnel excavation according to claim 2, characterized in that: A vertical plate (403) is fixedly mounted at the bottom of the mounting bracket (401), and vertical rollers (404) are mounted on the outer edges of the vertical plate (403). Two groups of vertical rollers (404) are provided, and the two groups of vertical rollers (404) are respectively located on both sides of track one (1).

4. A temporary support device for tunnel excavation according to claim 1, characterized in that: A fixed rod (9) is installed on the top of the movable assembly 1 (4) and the movable assembly 2 (5), and a movable rod (10) is slidably sleeved on the inner wall of the fixed rod (9). The fixed rod (9) and the movable rod (10) are connected via a hydraulic rod (11).

5. A temporary support device for tunnel excavation according to claim 4, characterized in that: A connecting piece (12) is fixedly mounted on the top of the movable rod (10), a connecting column (13) is movably connected to the inner wall of the connecting piece (12), a baffle (15) is fixedly mounted on the top of the connecting column (13), and a buffer spring (14) is movably sleeved on the outer edge of the connecting column (13).

6. A temporary support device for tunnel excavation according to claim 1, characterized in that: The outer edges of the heads of the track one (1) and the track two (2) are both installed with a limiting sleeve (21) and a connecting block (22), and the inner wall of the connecting block (22) is installed with a bolt (23).

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