Roadway supporting device for mining engineering

Abstract

The roadway supporting device comprises a base, a sliding feeding mechanism, a lifting supporting mechanism and a buffering mechanism, sliding rails are symmetrically and fixedly arranged on the base, sliding grooves are symmetrically formed in the bottom of the base, a positioning block is fixedly arranged in the middle of the front side of the base, and a positioning groove is formed in the middle of the rear side of the base. A threaded through hole is formed in the middle of the positioning block, a positioning threaded hole is formed in the middle of the positioning groove, lifting supporting mechanisms are symmetrically arranged on the two sides of the base, and a buffering mechanism is arranged above the lifting supporting mechanisms. The sliding rails on the base are matched with the sliding grooves, so that the follow-up base is conveniently pushed along the erected and installed base sliding rails to slide towards the interior of a roadway for laying, laying and installation in the narrow-space roadway are facilitated, the supporting strength is improved through the arc-shaped supporting plate, and the arc-shaped supporting plate is fully attached to the top of the roadway; and a buffer spring generates deformation during vibration for buffering, so that the problem that the lifting shaft and the driving nut are damaged due to vibration is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mining engineering, in particular to a tunnel supporting device used in mining engineering. Background Art

[0002] my country's coal mines are mainly mined underground, and a large number of tunnels need to be excavated underground. The use of tunnel support to keep the tunnels unobstructed and the surrounding rock stable is of great significance to coal mine construction and production. The basic purpose of tunnel support is to ease and reduce the movement of the surrounding rock, so that the tunnel section does not shrink excessively, and at the same time prevent the scattered and damaged surrounding rock from falling. The effect of tunnel support depends not only on the supporting force of the support itself, but also on a series of factors such as the surrounding rock properties, the mechanical properties of the support (supporting force and shrinkability), the density of the support installation, the early or late installation time of the support, the quality of the support installation, and the contact mode with the surrounding rock (point contact or surface contact);

[0003] The utility model with application number 202321237519.7 discloses a tunnel support device for mining engineering. Through the jacking assembly arranged at the top and the bendable curved beam, the upper surface of the entire load-bearing frame can be closely attached to the tunnel top wall, improving the fit and stability with the tunnel top wall, thereby ensuring the support effect. The jacking assembly drives the lifting shaft to adjust the height through the driving nut, which can have stronger structural strength and higher support strength.

[0004] However, the support frame and the curved beam in the above-mentioned tunnel support device for mining engineering need to be manually laid on the track in advance for feeding and installation, and the space in the tunnel is relatively narrow, which is not convenient for transportation and installation operations. The above-mentioned tunnel support device for mining engineering lacks buffering and shock absorption function, and when encountering vibration impact, it will directly act on the external thread and the internal thread, causing damage to the lifting shaft and the driving nut. Therefore, the utility model proposes a tunnel support device for mining engineering to solve the problems existing in the prior art. Utility Model Content

[0005] In view of the above problems, the purpose of the utility model is to propose a tunnel support device for mining projects. The tunnel support device for mining projects cooperates with the slide rail and the slide groove on the base, which facilitates the subsequent base to be pushed along the already installed base slide rail to slide and lay in the tunnel, and is convenient for laying and installation in tunnels with narrow space. The arc-shaped support plate is used to increase the support strength and fully fit the top of the tunnel. The buffer spring is deformed to provide buffering when encountering vibration, which effectively prevents the problem of damage to the lifting shaft and the drive nut caused by vibration.

[0006] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a tunnel support device for mining engineering, including a base, a sliding feeding mechanism, a lifting support mechanism and a buffer mechanism, the sliding feeding mechanism including a slide rail, a slide groove, a positioning block, a positioning groove, a threaded through hole and a positioning threaded hole, the base is symmetrically fixed with slide rails, the bottom of the base is symmetrically provided with slide grooves, a positioning block is fixedly provided in the middle of the front side of the base, a positioning groove is provided in the middle of the rear side of the base, a threaded through hole is provided in the middle of the positioning block, a positioning threaded hole is provided in the middle of the positioning groove, lifting support mechanisms are symmetrically provided on both sides of the base, and a buffer mechanism is provided above the lifting support mechanism.

[0007] A further improvement is that the slide groove corresponds to the upper and lower positions of the slide rail, and the threaded through hole corresponds to the position of the positioning threaded hole.

[0008] Further improvements are: the lifting support mechanism includes a lower frame, a base plate, a lifting hole, a screw, a threaded sleeve and an upper frame, the lower frame is fixed with matching bolts at the four corners of the base, the bottom of the lower frame is fixedly connected with a base plate, a lifting hole is opened in the middle of the upper part of the lower frame, a screw is rotatably arranged in the threaded hole, a threaded sleeve is arranged in the middle of the screw, the upper end of the screw is fixedly connected with an upper frame, and a buffer mechanism is arranged above the upper frame.

[0009] A further improvement is that the threaded sleeve rotates in the middle of the lifting hole, and the threaded sleeve and the screw rod are threadedly matched.

[0010] Further improvements are: the buffer mechanism includes a connecting plate, a top support frame, an arc support plate, a vertical bracket and a buffer spring, a connecting plate is fixedly provided on the top of the upper frame, the connecting plates are symmetrically provided in two groups, a top support frame is fixedly provided above the connecting plates, an arc support plate is fixedly provided above the top support frame, a vertical bracket is fixedly provided in the middle of the top support frame, and buffer springs are symmetrically fixedly provided on both sides of the top support frame.

[0011] A further improvement is that: the vertical brackets are provided in multiple groups, and the upper ends of the vertical brackets are fixedly connected to the middle of the arc-shaped support plate.

[0012] A further improvement is that the buffer springs are arranged in multiple groups, and the upper ends of the buffer springs are fixedly connected to the bottom of the arc-shaped support plate.

[0013] The beneficial effects of the utility model are as follows: the utility model cooperates with the slide rail and the slide groove on the base, so that the subsequent base can be pushed along the already installed base slide rail to slide and lay in the tunnel, and it is convenient to lay and install in tunnels with narrow space. The arc-shaped support plate improves the support strength and fully fits the top of the tunnel. The buffer spring deforms to provide buffering when encountering vibration, effectively preventing the problem of damage to the lifting shaft and the driving nut caused by vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall front sectional view of the utility model;

[0015] Figure 2 This is a top view of the base of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of point A of the present utility model.

[0017] Among them: 1. Base; 2. Slide rail; 3. Slide groove; 4. Positioning block; 5. Positioning groove; 6. Threaded through hole; 7. Positioning threaded hole; 8. Lower frame; 9. Bottom plate; 10. Lifting hole; 12. Threaded sleeve; 13. Upper frame; 14. Connecting plate; 15. Top support frame; 16. Arc support plate; 17. Vertical bracket; 18. Buffer spring. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0019] according to Figure 1 , Figure 2 , Figure 3As shown, this embodiment provides a tunnel support device for mining engineering, including a base 1, a sliding feeding mechanism, a lifting support mechanism and a buffer mechanism. The sliding feeding mechanism includes a slide rail 2, a slide groove 3, a positioning block 4, a positioning groove 5, a threaded through hole 6 and a positioning threaded hole 7. The slide rail 2 is symmetrically fixed on the base 1, and the slide groove 3 is symmetrically opened at the bottom of the base 1. A positioning block 4 is fixedly provided in the middle of the front side of the base 1, and a positioning groove 5 is opened in the middle of the rear side of the base 1. A threaded through hole 6 is opened in the middle of the positioning block 4, and a positioning threaded hole 7 is opened in the middle of the positioning groove 5. The slide groove 3 corresponds to the upper and lower positions of the slide rail 2, and the threaded through hole 6 corresponds to the positioning threaded hole 7. The positions of the grooves 7 correspond to each other, and lifting support mechanisms are symmetrically provided on both sides of the base 1, and a buffer mechanism is provided above the lifting support mechanism. When the tunnel support device is installed, the base 1 is prevented from being on the installed slide rail 2 through the slide groove 3 and the slide rail 2 to facilitate the pushing of the base 1 for feeding. When it is pushed to the front end in the tunnel, the positioning block 4 is inserted into the positioning groove 5 and then fixed by bolts screwed into the threaded through hole 6 and the positioning threaded hole 7, so that the slide rail 2 can be laid while the tunnel support is being erected and installed, which facilitates the subsequent support device to slide into the tunnel along the slide rail 2 for erection of support, solving the problem that the space in the tunnel is relatively narrow, making it inconvenient to manually lay the track and install the feeding.

[0020] The lifting support mechanism includes a lower frame 8, a base plate 9, a lifting hole 10, a screw 11, a threaded sleeve 12 and an upper frame 13. The lower frame 8 is fixed with matching bolts at the four corners of the base 1. The bottom of the lower frame 8 is fixedly connected with a base plate 9. A lifting hole 10 is opened in the middle of the upper part of the lower frame 8. A screw 11 is rotated in the threaded hole. A threaded sleeve 12 is sleeved in the middle of the screw 11. The upper end of the screw 11 is fixedly connected with an upper frame 13. The threaded sleeve 12 rotates in the middle of the lifting hole 10. The threaded sleeve 12 and the screw 11 are threadedly matched. A buffer mechanism is provided above the upper frame 13. When the base 1 moves to the front end position in the tunnel, the threaded sleeve 12 is rotated. The threaded sleeve 12 drives the screw 11 to rotate by the threaded matching of the threaded sleeve 12. When the screw 11 rotates, it cooperates with the lifting hole 10 to drive the upper frame 13 to rise and support the tunnel.

[0021] The buffer mechanism includes a connecting plate 14, a top support frame 15, an arc-shaped support plate 16, a vertical support 17 and a buffer spring 18. A connecting plate 14 is fixedly provided on the top of the upper frame 13. The connecting plate 14 is symmetrically provided in two groups. A top support frame 15 is fixedly provided above the connecting plates 14. An arc-shaped support plate 16 is fixedly provided above the top support frame 15. A vertical support 17 is fixedly provided in the middle of the top support frame 15. Buffer springs 18 are symmetrically fixedly provided on both sides of the top support frame 15. There are multiple groups of vertical supports 17. The upper end of the vertical support 17 is fixedly connected to the middle of the arc-shaped support plate 16. Multiple groups of buffer springs 18 are arranged. The upper end of the buffer spring 18 is fixedly connected to the bottom of the arc-shaped support plate 16. The top support frame 15 rises synchronously with the upper frame 13 to support the arc-shaped support plate 16 against the top of the tunnel. The vertical support 17 plays a major supporting role. The shape of the arc-shaped support plate 16 is used to improve the supporting strength. When encountering vibration, the buffer spring 18 uses the spring shape change to resolve the vibration intensity transmitted to the upper frame 13.

[0022] When the tunnel support device for mining engineering is installed, the base is prevented from sliding on the slide rail of the previous group of devices to push the base into the tunnel, and supports are set up in sequence inside the tunnel. The slide groove and the slide rail cooperate to drive the base to slide and feed. When the base slides to the front end of the tunnel, the base is pushed to move so that the positioning block is stuck in the positioning groove, and then the bolts are screwed into the threaded through holes and the positioning threaded holes for fixing. When installing, the lower frame is first bolted to the four corners of the base, and then the threaded sleeve is rotated to cooperate with the screw thread to push the screw and the upper frame to rise, so that the top support frame and the arc support plate support the top of the tunnel, and the arc shape is used to increase the support strength and the fit with the top of the tunnel. When encountering vibration, the buffer spring generates elastic deformation to dissipate the vibration transmitted to the upper frame.

[0023] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tunnel support device for mining engineering, characterized in that: The invention comprises a base (1), a sliding feeding mechanism, a lifting support mechanism and a buffer mechanism, wherein the sliding feeding mechanism comprises a slide rail (2), a slide groove (3), a positioning block (4), a positioning groove (5), a threaded through hole (6) and a positioning threaded hole (7), wherein the slide rail (2) is symmetrically fixedly arranged on the base (1), the slide groove (3) is symmetrically arranged at the bottom of the base (1), a positioning block (4) is fixedly arranged in the middle of the front side of the base (1), a positioning groove (5) is arranged in the middle of the rear side of the base (1), a threaded through hole (6) is arranged in the middle of the positioning block (4), a positioning threaded hole (7) is arranged in the middle of the positioning groove (5), lifting support mechanisms are symmetrically arranged on both sides of the base (1), and a buffer mechanism is arranged above the lifting support mechanism.

2. A tunnel support device for mining engineering according to claim 1, characterized in that: The slide groove (3) corresponds to the upper and lower positions of the slide rail (2), and the threaded through hole (6) corresponds to the position of the positioning threaded hole (7).

3. A tunnel support device for mining engineering according to claim 1, characterized in that: The lifting support mechanism comprises a lower frame (8), a bottom plate (9), a lifting hole (10), a screw rod (11), a threaded sleeve (12) and an upper frame (13); the lower frame (8) is fixedly provided with matching bolts at four corners of the base (1); the bottom of the lower frame (8) is fixedly connected with the bottom plate (9); a lifting hole (10) is provided in the middle of the upper part of the lower frame (8); a screw rod (11) is rotatably provided in the threaded hole; a threaded sleeve (12) is sleeved in the middle of the screw rod (11); the upper end of the screw rod (11) is fixedly connected with the upper frame (13); and a buffer mechanism is provided above the upper frame (13).

4. A tunnel support device for mining engineering according to claim 3, characterized in that: The threaded sleeve (12) rotates in the middle of the lifting hole (10), and the threaded sleeve (12) and the screw rod (11) are threadedly matched.

5. A tunnel support device for mining engineering according to claim 3, characterized in that: The buffer mechanism comprises a connecting plate (14), a top support frame (15), an arc-shaped support plate (16), a vertical support (17) and a buffer spring (18); a connecting plate (14) is fixedly provided on the top of the upper frame (13); two groups of the connecting plates (14) are symmetrically provided; a top support frame (15) is fixedly provided above the connecting plates (14); an arc-shaped support plate (16) is fixedly provided above the top support frame (15); a vertical support (17) is fixedly provided in the middle of the top support frame (15); and buffer springs (18) are symmetrically fixedly provided on both sides of the top support frame (15).

6. A tunnel support device for mining engineering according to claim 5, characterized in that: The vertical brackets (17) are provided in multiple groups, and the upper ends of the vertical brackets (17) are fixedly connected to the middle of the arc-shaped support plate (16).

7. A tunnel support device for mining engineering according to claim 5, characterized in that: The buffer springs (18) are arranged in multiple groups, and the upper ends of the buffer springs (18) are fixedly connected to the bottom of the arc-shaped support plate (16).

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