Coal mine tunnel supporting device

Abstract

The utility model is suitable for the technical field of coal mine construction, and provides a coal mine tunnel supporting device which comprises two supporting plates, and cavities are formed in the two supporting plates. The two supporting rods are rotationally installed on the two supporting plates correspondingly, and the ends, away from each other, of the two supporting rods extend into the two cavities correspondingly; the supporting shell is fixedly arranged on the two supporting rods and is used for supporting a coal mine tunnel; the box body is arranged below the two supporting plates, and a plurality of universal wheels are fixedly mounted at the bottom of the box body; the lifting mechanisms are mounted on the box body and are used for lifting the supporting shell; and the two rotating mechanisms are assembled on the two supporting plates correspondingly and used for rotating the supporting shell. The coal mine tunnel supporting device solves the problem that an existing coal mine tunnel supporting device is poor in universality due to the fact that the existing coal mine tunnel supporting device can only support the top of a coal mine tunnel of one shape.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine construction, in particular to a coal mine tunnel supporting device. Background Art

[0002] Coal mines in my country are mainly mined underground, which requires the excavation of a large number of tunnels underground. Keeping the tunnels unobstructed and the surrounding rocks stable is of great significance to coal mine construction and production. With the increase in mining depth and breadth, mining intensity, geological conditions are becoming increasingly complex. Complex conditions such as high-altitude stress tunnels, tunnels affected by strong mining, tunnels with soft and broken surrounding rocks, and tunnels with extra-large sections account for an increasing proportion, which increases the difficulty of tunnel support and poses a safety hazard to workers in the tunnels. Therefore, coal mine tunnel support devices are needed to support coal mine tunnels.

[0003] However, existing coal mine tunnel support devices can usually only support the top of a coal mine tunnel of one shape. Since the top of a coal mine tunnel is divided into two types: arched and flat, the same coal mine tunnel support device cannot support the tops of two different types of coal mine tunnels, and its versatility is poor. Utility Model Content

[0004] The utility model provides a coal mine tunnel support device, aiming to solve the problem of poor versatility of the existing coal mine tunnel support device proposed in the above background technology because the device can only support the top of a coal mine tunnel of one shape.

[0005] To solve the above problems, the present invention is implemented as follows: a coal mine tunnel support device, comprising: two support plates, each of which is provided with a cavity; two support rods rotatably mounted on the two support plates, with the ends of the two support rods away from each other extending to the inside of the two cavities respectively; a support shell fixedly mounted on the two support rods for supporting the coal mine tunnel; a box body arranged below the two support plates, with a plurality of universal wheels fixedly mounted on the bottom of the box body; a plurality of lifting mechanisms mounted on the box body for lifting the support shell; and two rotating mechanisms respectively assembled on the two support plates for rotating the support shell.

[0006] Preferably, the lifting mechanism includes: a dual-axis motor fixedly mounted on the inner wall of the bottom of the box body, and a rotating shaft is fixedly mounted on both output shafts of the dual-axis motor; two screws rotatably mounted on the box body, and screw sleeves are threadedly mounted on both screws, and the two screw sleeves are respectively fixedly connected to the two support plates; two first bevel gears respectively fixedly mounted on the two rotating shafts; two second bevel gears respectively fixedly mounted on the two screws, and the two second bevel gears are respectively meshed with the two first bevel gears.

[0007] Preferably, the rotating mechanism includes: a shell fixedly mounted on the support plate; a connecting rod rotatably mounted on the inner wall of one side of the cavity, one end of the connecting rod extending into the interior of the shell; a servo motor fixedly mounted on the inner wall of one side of the shell, the output shaft of the servo motor fixedly connected to one end of the connecting rod; a first sprocket fixedly mounted on the connecting rod; a second sprocket fixedly mounted on the support rod; and a chain sleeved on the first sprocket and the second sprocket.

[0008] Preferably, two brackets are fixedly mounted on the inner wall of the support shell, and the support shell is made of metal.

[0009] Preferably, a plurality of limiting rods are fixedly installed on the top of the box body, and the plurality of limiting rods are slidably connected to the two support plates respectively.

[0010] Preferably, a plurality of fixing plates are fixedly mounted on the box body, the plurality of fixing plates are all arranged in an L-shape, and the plurality of fixing plates are all provided with through holes.

[0011] Preferably, a plurality of support blocks are fixedly mounted on the inner wall of the box body, and the plurality of support blocks are rotatably connected to the plurality of rotating shafts respectively.

[0012] Compared with related technologies, the coal mine tunnel support device provided by the utility model has the following beneficial effects:

[0013] Compared with the existing technology, the coal mine tunnel support device provided by this solution can facilitate the staff to move the device to the required position through the use of multiple universal wheels. Through the use of the rotating mechanism, the support shell with an arched top and a flat bottom can be rotated and adjusted, so that the support shell on the device can support coal mine tunnels with arched tops as well as coal mine tunnels with flat tops, which greatly improves the versatility of the device and has a better use effect. Through the use of the lifting mechanism, the height of the support shell can be adjusted so that the support shell can support the tops of coal mine tunnels at different heights. When the top of the support shell contacts the top of the coal mine tunnel, the top of the coal mine tunnel can be effectively supported, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic cross-sectional view of a coal mine tunnel support device provided by the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A shown in FIG;

[0016] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG;

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the support shell and the support rod in the utility model.

[0018] Figure numerals: 1. support plate; 2. support rod; 3. support shell; 4. box body; 5. dual-axis motor; 6. rotating shaft; 7. screw; 8. screw sleeve; 9. first bevel gear; 10. second bevel gear; 11. housing; 12. connecting rod; 13. servo motor; 14. first sprocket; 15. second sprocket; 16. chain; 17. bracket; 18. limit rod; 19. fixing plate. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein in the specification of the application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the description of the above-mentioned drawings, as well as any variations thereof, are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The present invention provides a coal mine tunnel support device. Figure 1-4As shown, the coal mine tunnel support device includes: two support plates 1, each of which is provided with a cavity; two support rods 2 rotatably mounted on the two support plates 1, and the ends of the two support rods 2 away from each other extend to the inside of the two cavities respectively; a support shell 3 fixedly mounted on the two support rods 2 for supporting the coal mine tunnel; a box body 4 arranged below the two support plates 1, and a plurality of universal wheels fixedly mounted on the bottom of the box body 4; a plurality of lifting mechanisms mounted on the box body 4 for lifting the support shell 3; and two rotating mechanisms respectively assembled on the two support plates 1 for rotating the support shell 3.

[0022] In this embodiment, when the device is used to support coal mine tunnels, the device can be pushed into a suitable position in the coal mine tunnel under the action of multiple universal wheels. After reaching the suitable position, the use state of the support shell 3 can be adjusted according to the top shape of the coal mine tunnel. The top of the support shell 3 is arched and the bottom is flat. Therefore, when supporting the top of the coal mine tunnel, it is only necessary to rotate the corresponding shaped surface on the support shell 3 to the top. When adjustment is required, it is necessary to start the rotating mechanism to drive the two support rods 2 to rotate. The support rods 2 will drive the support shell 3 to rotate, and the adjustment is relatively convenient. After the adjustment is completed, the lifting mechanism is started to drive the support shell 3 to move vertically so that the top of the support shell 3 contacts the top of the coal mine tunnel. After contact, the top of the coal mine tunnel can be effectively supported, with good use effect and good versatility.

[0023] In a further preferred embodiment of the present utility model, the lifting mechanism includes: a dual-axis motor 5 fixedly mounted on the inner wall of the bottom of the box body 4, and a rotating shaft 6 is fixedly mounted on the two output shafts of the dual-axis motor 5; two screws 7 rotatably mounted on the box body 4, and the two screw sleeves 8 are threadedly mounted on the two screws 7, and the two screw sleeves 8 are respectively fixedly connected to the two support plates 1; two first bevel gears 9 respectively fixedly mounted on the two rotating shafts 6; two second bevel gears 10 respectively fixedly mounted on the two screws 7, and the two second bevel gears 10 are respectively engaged with the two first bevel gears 9.

[0024] In this embodiment, the lifting mechanism is used to lift the support shell 3. When in use, the dual-axis motor 5 is started, the dual-axis motor 5 will drive the rotating shaft 6 to rotate, the rotating shaft 6 will drive the first bevel gear 9 to rotate, the first bevel gear 9 will drive the second bevel gear 10 to rotate, the second bevel gear 10 will drive the screw 7 to rotate, the screw 7 will drive the screw sleeve 8 to move vertically, the screw sleeve 8 will drive the support plate 1 to move vertically, the support plate 1 will drive the support rod 2 to move vertically, and the support rod 2 will drive the support shell 3 to move vertically, so that the support shell 3 can be adjusted according to the top height of the coal mine tunnel, so that the support shell 3 can support the tops of coal mine tunnels at different heights.

[0025] In a further preferred embodiment of the present invention, the rotating mechanism includes: a shell 11 fixedly mounted on the support plate 1; a connecting rod 12 rotatably mounted on the inner wall of one side of the cavity, one end of the connecting rod 12 extends to the interior of the shell 11; a servo motor 13 fixedly mounted on the inner wall of one side of the shell 11, and the output shaft of the servo motor 13 is fixedly connected to one end of the connecting rod 12; a first sprocket 14 fixedly mounted on the connecting rod 12; a second sprocket 15 fixedly mounted on the support rod 2; and a chain 16 sleeved on the first sprocket 14 and the second sprocket 15.

[0026] In this embodiment, the rotating mechanism is used to rotate the support shell 3. When in use, the servo motor 13 is started, the servo motor 13 will drive the connecting rod 12 to rotate, the connecting rod 12 will drive the first sprocket 14 to rotate, the first sprocket 14 will drive the second sprocket 15 to rotate through the chain 16, the second sprocket 15 will drive the support rod 2 to rotate, and the support rod 2 will drive the support shell 3 to rotate, and then the corresponding shape of the surface of the support shell 3 can be adjusted to the top according to the top shape of the coal mine tunnel, and the adjustment is more convenient.

[0027] In a further preferred embodiment of the present invention, two brackets 17 are fixedly mounted on the inner wall of the support shell 3 , and the support shell 3 is made of metal.

[0028] In this embodiment, the two brackets 17 can improve the supporting capacity of the support shell 3, making it less likely to deform when subjected to greater pressure. The support shell 3 is made of metal material and has high strength, wear resistance and corrosion resistance, so that the support shell 3 can withstand greater external pressure or impact force, and can effectively support the top of the coal mine tunnel.

[0029] In a further preferred embodiment of the present invention, a plurality of limiting rods 18 are fixedly installed on the top of the box body 4 , and the plurality of limiting rods 18 are slidably connected to the two support plates 1 respectively.

[0030] In this embodiment, the use of multiple limiting rods 18 can improve the stability of the two support plates 1 during the vertical lifting process, so that the support shell 3 can be more stable during the lifting operation.

[0031] In a further preferred embodiment of the present invention, a plurality of fixing plates 19 are fixedly mounted on the box body 4 , the plurality of fixing plates 19 are all arranged in an L-shape, and through holes are formed on the plurality of fixing plates 19 .

[0032] In this embodiment, the use of multiple through holes can facilitate workers to use bolts to stably fix the device on the ground where it is placed.

[0033] In a further preferred embodiment of the present invention, a plurality of support blocks are fixedly mounted on the inner wall of the box body 4 , and the plurality of support blocks are rotatably connected to the plurality of rotating shafts 6 respectively.

[0034] In this embodiment, the multiple support blocks can support the multiple rotating shafts 6, thereby preventing the multiple rotating shafts 6 from bending due to excessive length, so that the multiple rotating shafts 6 can maintain good stability during rotation.

[0035] To sum up, compared with the relevant technology, this solution can facilitate the staff to move the device to the required position through the use of multiple universal wheels. Through the use of the rotating mechanism, the support shell 3 with an arched top and a flat bottom can be rotated and adjusted, so that the support shell 3 on the device can support coal mine tunnels with arched tops as well as coal mine tunnels with flat tops, which greatly improves the versatility of the device and has a better use effect. Through the use of the lifting mechanism, the height of the support shell 3 can be adjusted, so that the support shell 3 can support the tops of coal mine tunnels at different heights. When the top of the support shell 3 contacts the top of the coal mine tunnel, the top of the coal mine tunnel can be effectively supported, and the use effect is better.

[0036] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A coal mine tunnel support device, characterized in that: include: Two support plates, each of which has a cavity; Two support rods are rotatably mounted on the two support plates, and ends of the two support rods that are away from each other extend into the interiors of the two cavities respectively; A support shell fixedly mounted on the two support rods for supporting a coal mine tunnel; A box body is provided below the two support plates, and a plurality of universal wheels are fixedly mounted on the bottom of the box body; A plurality of lifting mechanisms installed on the box body for lifting and lowering the support shell; Two rotating mechanisms are respectively mounted on the two support plates for rotating the support shell.

2. The coal mine tunnel support device according to claim 1, characterized in that: The lifting mechanism comprises: A dual-shaft motor is fixedly mounted on the inner wall of the bottom of the box, and a rotating shaft is fixedly mounted on both output shafts of the dual-shaft motor; Two screws mounted on the box body are rotatably connected, wherein screw sleeves are threadedly mounted on the two screws, and the two screw sleeves are fixedly connected to the two support plates respectively; Two first bevel gears fixedly mounted on the two rotating shafts respectively; Two second bevel gears are fixedly mounted on the two screw rods respectively, and the two second bevel gears are respectively engaged with the two first bevel gears.

3. The coal mine tunnel support device according to claim 1, characterized in that: The rotating mechanism comprises: A housing fixedly mounted on the support plate; A connecting rod rotatably mounted on an inner wall of one side of the cavity, wherein one end of the connecting rod extends into the interior of the housing; A servo motor is fixedly mounted on an inner wall of one side of the housing, wherein an output shaft of the servo motor is fixedly connected to one end of the connecting rod; a first sprocket fixedly mounted on the connecting rod; a second sprocket fixedly mounted on the support rod; A chain is sleeved on the first sprocket and the second sprocket.

4. The coal mine tunnel support device according to claim 1, characterized in that: Two brackets are fixedly installed on the inner wall of the support shell, and the support shell is made of metal.

5. The coal mine tunnel support device according to claim 1, characterized in that: A plurality of limiting rods are fixedly installed on the top of the box body, and the plurality of limiting rods are respectively slidably connected to the two support plates.

6. The coal mine tunnel support device according to claim 1, characterized in that: A plurality of fixing plates are fixedly mounted on the box body, the plurality of fixing plates are all arranged in an L-shape, and through holes are formed on the plurality of fixing plates.

7. The coal mine tunnel support device according to claim 2, characterized in that: A plurality of support blocks are fixedly mounted on the inner wall of the box body, and the plurality of support blocks are rotatably connected to the plurality of rotating shafts respectively.

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