Roof support safety monitoring device based on coal mining

Abstract

The utility model relates to a roof support safety monitoring device based on coal mining, which comprises a rotatable support part clamped oppositely, a support mechanism is supported in the rotatable support part, the support part comprises a bottom plate supported by a plurality of arc-shaped support wings on the two sides, and a pushing shaft is arranged on the edge of the upper end of each support wing in a penetrating manner and can push the support wings to be unfolded towards the two sides. The supporting mechanism comprises a supporting seat connected to the bottom plate, a rotatable supporting arm with a square section is hinged to the supporting seat, a plurality of first oil cylinders connected with the supporting seat are arranged on the front face of the supporting arm in an upward extending mode, and a plurality of second oil cylinders connected with the supporting seat are arranged on the front face of the supporting arm. A plurality of second oil cylinders are arranged on the reverse side of the supporting arm in a downward extending mode, a Z-shaped supporting base is arranged at the tail end of the supporting arm in a suspended mode, and the supporting base is arranged on the unfolding shaft in a sleeving mode and can drive the first oil cylinders and the second oil cylinders to jack the supporting wings to be unfolded along with pressing sinking of the bottom plate; the system can effectively adapt to the change of the mine environment, and the self-adaptive capacity and flexibility of the supporting system are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mining technical field, especially relate to based on coal mining roof support safety monitoring device. BACKGROUND

[0002] In coal mining operation, roof support is one of the important technical means to ensure mine safety. With the continuous increase of coal mining depth, the stability of the roof in the mine is facing more and more challenges. The traditional roof support device mostly adopts fixed support structure or simple hydraulic support system. Although these designs can effectively support the roof, they also have certain limitations. For example, when dealing with complex geological conditions and large-scale mining, the traditional support system often cannot meet the dynamic changing support demand, leading to roof collapse and other safety hazards. At the same time, the traditional support equipment needs frequent manual adjustment, and the operation is not flexible enough, which brings great labor intensity and safety risk to mine operation.

[0003] At present, the support equipment used in coal mining is mostly in the form of single mechanical support. These devices often cannot effectively adapt to the deformation of the mine tunnel, and are prone to uneven support in long-term use, thereby affecting the safety and efficiency of the mine. Although in recent years with the progress of technology, hydraulic support equipment has been gradually introduced into the coal industry, the stability and adaptability of the existing equipment to different working environments still need to be improved, and there is an urgent need for a roof support safety monitoring device that can automatically adjust the support force when the roof of the mine tunnel deforms unevenly, avoiding manual intervention. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a roof support safety monitoring device based on coal mining, and the specific technical solutions are as follows:

[0005] The utility model provides a kind of roof support safety monitoring device based on coal mining, including the rotatable support part of opposite clamping, its inside is supported with support mechanism, the support part includes the bottom plate of the arc support wing of multiple on both sides, and the push shaft is arranged on the upper end edge of support wing, support wing can be pushed to spread to both sides, its waist is provided with the unfolding shaft parallel with the push shaft, for the support of mine tunnel, the support mechanism includes the support seat connected to the bottom plate, rotatable support arm with square section is hinged on it, and a plurality of first oil cylinders connected with support seat are extended upward on the front surface of support arm, and a plurality of second oil cylinders are extended downward on the reverse surface of support arm, and Z-shaped support base is suspended at the end thereof, the support base is sleeved on unfolding shaft, can drive first oil cylinder, second oil cylinder to push in support wing unfolding with the sinking of bottom plate under pressure.

[0006] As an optimal technical scheme of the utility model, the top center of the supporting part is provided with a square cavity top plate, symmetrical hinge push oil cylinders are arranged on both sides of the square cavity top plate, the push part of the push oil cylinder is sleeved with the push shaft, and the upper part of the supporting wing can be supported.

[0007] As an optimal technical scheme of the utility model, the top plate is internally rotatably provided with a shuttle-shaped righting disc, rotatable righting arms are connected to both ends of the shuttle-shaped righting disc, the tail end of the righting arm is sleeved with the push shaft, and the two supporting wings can be uniformly unfolded.

[0008] As an optimal technical scheme of the utility model, the righting arm is designed in a multi-section mode, and a spring is embedded in the righting arm, so that the impact on the two push shafts can be alleviated.

[0009] As an optimal technical scheme of the utility model, the supporting wings are clamped with hollow rib plates, the hollow rib plates are used for connecting the parallel supporting wings, and the pressure on both sides of the mine tunnel is reduced.

[0010] As an optimal technical scheme of the utility model, the push part of the push oil cylinder is sleeved with a joint bearing and connected with the push shaft, so that greater freedom of movement can be provided, and the centering error can be compensated.

[0011] As an optimal technical scheme of the utility model, the supporting mechanism is connected with a server, the server immediately alarms when the supporting mechanism is pressed beyond the limit, and the safety monitoring for coal mining is achieved.

[0012] The utility model has the advantages of:

[0013] The flexibility and adaptability of the supporting system are improved: the traditional roof supporting equipment mainly adopts a fixed supporting mode, and it is difficult to adapt to the complex deformation of the mine tunnel top. According to the utility model, the rotatable supporting part is designed, and the linkage of the push shaft and the unfolding shaft is achieved, so that the supporting wing can be flexibly unfolded according to the specific conditions of the mine tunnel, thereby effectively adapting to the changes of the mine environment, and the self-adaptive ability and flexibility of the supporting system are improved.

[0014] The uniformity of the supporting effect is improved: the traditional supporting equipment may have uneven supporting during the deformation of the mine tunnel, resulting in excessive support in some areas and insufficient support in other areas. The supporting mechanism of the utility model realizes accurate unfolding and adjustment of the supporting wing through linkage control of multiple oil cylinders, ensures that the supporting force can be uniformly distributed, avoids the problem of local excessive or insufficient support in the traditional supporting system, and improves the uniformity and stability of the supporting effect.

[0015] Improve response speed and automation level: The utility model discloses through the hydraulic cylinder system accurate control support arm's movement, can according to the deformation condition of mine tunnel top quick adjustment support component's position and angle. This automatic, intelligent adjustment mechanism can significantly reduce manual intervention, improve operation efficiency, reduce the security risk that can be caused due to manual adjustment simultaneously, the safety and high efficiency of coal mine operation are strengthened.

[0016] Optimize the stability of support structure: The support arm is hinged with the support seat, so that the support arm can deform flexibly under pressure, effectively dispersing and bearing the pressure on the top of the mine tunnel. With the design of Z-shaped support base, the stability of the support part can be improved, and the support device can always maintain firm and stable support effect in complex geological environment.

[0017] Reduce equipment failure rate and maintenance cost: Compared with traditional support system, the utility model can significantly reduce equipment wear and failure rate through accurate hydraulic system and efficient linkage design. The automation and intelligent control of the equipment can detect potential problems in advance, avoiding the blindness of manual inspection and reducing the probability of failure, thereby reducing maintenance cost and equipment downtime.

[0018] Improve the safety of coal mine operation: Through the improved support system, the dynamic changes of the roof can be better handled, and the collapse accident caused by improper support can be avoided. In addition, the automatic adjustment and monitoring device reduces the working intensity of workers in high-risk environment and reduces the safety hazards during operation, significantly improving the overall safety of the mine. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The overall structure of the utility model is shown in the figure;

[0020] Figure 2 The structure of the support part combined with the push cylinder in the utility model is shown in the figure;

[0021] Figure 3 The structure of the support part combined with the righting arm in the utility model is shown in the figure;

[0022] Figure 4 The three-dimensional structure of the support mechanism in the utility model is shown in the figure;

[0023] In the figure: 1, support part; 11, expansion shaft; 12, bottom plate; 13, push shaft; 14, support wing; 141, rib plate; 15, righting arm; 16, righting disc; 2, top plate; 3, push cylinder; 31, joint bearing; 4, support mechanism; 41, support seat; 42, support arm; 43, first cylinder; 44, second cylinder; 45, support base. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0025] Embodiment one

[0026] In order to solve the technical problems in the background art, the following coal mine roof 2 support safety monitoring device based on mining is given:

[0027] Combining Figures 1-4 As shown in the figure, the coal mine roof 2 support safety monitoring device based on mining includes a rotatable support part 1 that is clamped opposite, which is internally supported by a support mechanism 4. The support part 1 includes a bottom plate 12 supported by a plurality of arc-shaped support wings 14 on both sides, and a push shaft 13 is provided on the upper end edge of the support wing 14, which can push the support wing 14 to expand to both sides. The waist part is provided with an expansion shaft 11 parallel to the push shaft 13, which is used for supporting the mine tunnel. The support mechanism 4 includes a support seat 41 connected to the bottom plate 12, a rotatable support arm 42 with a square cross section is hinged to the support seat 41, a plurality of first oil cylinders 43 connected to the support seat 41 are provided on the front surface of the support arm 42 and extend upward, and a plurality of second oil cylinders 44 are provided on the back surface of the support arm 42 and extend downward. The end of the second oil cylinder 44 is suspended with a Z-shaped support base 45, and the support base 45 is sleeved on the expansion shaft 11 and can be driven by the first oil cylinder 43 and the second oil cylinder 44 to push the support wing 14 to expand when the bottom plate 12 is pressed to sink.

[0028] Please refer to the drawings in the description Figures 1-4 The utility model provides a kind of coal mine roof 2 support safety monitoring device embodiment, in this embodiment, support device is made of rotatable support part 1, and support mechanism 4 is supported in support part 1. A plurality of arc-shaped support wings 14 are installed on both sides of support part 1, these support wings 14 are supported by bottom plate 12, and push shaft 13 is provided on the upper end edge of support wing 14. The function of push shaft 13 is to push support wing 14 to expand to both sides, for supporting mine tunnel top. The waist part of support part 1 is provided with expansion shaft 11 parallel to push shaft 13, and the expansion shaft 11 is used to support and stabilize mine tunnel top, to improve support effect.

[0029] The supporting mechanism 4 comprises a supporting seat 41 connected to the base plate 12, and a rotatable supporting arm 42 with a square cross section is hinged to the supporting seat 41. The front surface of the supporting arm 42 is provided with a plurality of first oil cylinders 43 connected to the supporting seat 41, which are used to control the expansion and contraction of the supporting arm 42 to adapt to the deformation of the roof of the mine tunnel. The reverse surface of the supporting arm 42 is downwardly provided with a plurality of second oil cylinders 44, which work cooperatively to push the supporting wings 14 to expand outward, thereby further enhancing the supporting effect. The end of the supporting arm 42 is suspended with a Z-shaped supporting base 45, which is sleeved on the supporting arm 42 through the expansion shaft 11. When the base plate 12 is pressed, the base plate 12 will sink to drive the first oil cylinders 43 and the second oil cylinders 44 to push the supporting wings 14 to expand, thereby realizing the automatic expansion of the supporting wings 14 and further completing the support of the mine tunnel.

[0030] The supporting device in the embodiment utilizes a plurality of hydraulic oil cylinders and a rotatable supporting structure, so that the supporting wings 14 can automatically adjust the position under the pressure condition and maintain the stable supporting effect. The supporting mechanism 4 precisely controls the movement of the supporting arm 42 and the supporting wings 14 through the hydraulic system, so that the device can automatically adjust the supporting degree when the mine tunnel deforms, thereby ensuring the safety of the roof 2. Meanwhile, the linkage design of the expansion shaft 11 and the pushing shaft 13 enables the supporting wings 14 to quickly expand, reduces the manual intervention, and improves the operation efficiency.

[0031] Embodiment Two

[0032] In combination Figures 2-3 Based on the above embodiment, the embodiment further provides the following content:

[0033] In the embodiment, the top center of the supporting part 1 is provided with a square cavity roof 2, and the two sides are symmetrically hinged with a pushing oil cylinder 3. The pushing part of the pushing oil cylinder 3 is sleeved on the pushing shaft 13, which can provide upper support for the supporting wings 14.

[0034] A shuttle-shaped centralizing disc 16 is rotatably arranged in the roof 2, and the two ends are connected with rotatable centralizing arms 15. The ends of the centralizing arms 15 are sleeved on the pushing shaft 13, which can control the consistent expansion of the supporting wings 14 on both sides.

[0035] The centralizing arms 15 are designed in multiple sections, and springs are embedded therein to alleviate the impact on the pushing shaft 13 on both sides.

[0036] The pushing part of the pushing oil cylinder 3 is sleeved with a joint bearing 31 and connected with the pushing shaft 13, which can provide greater freedom of movement and compensate for the centering error.

[0037] Please refer to the drawings in the description Figures 2-3The utility model provides a kind of coal mine roof 2 support safety monitoring device's embodiment, in this embodiment, the top center of supporting device is equipped with square cavity roof 2. Pushing cylinder 3 is symmetrically hinged to the both sides of roof 2, and the pushing part of pushing cylinder 3 is sleeved on pushing shaft 13 to provide the upper support of support wing 14, so as to ensure the stable deployment of support wing 14. The function of pushing cylinder 3 is to control the movement of pushing shaft 13, push the deployment of support wing 14, and then support the top of mine.

[0038] In this embodiment, shuttle-shaped centralizing disc 16 is arranged in roof 2, and the both ends of centralizing disc 16 are connected with rotatable centralizing arm 15. The end of centralizing arm 15 is sleeved on pushing shaft 13, and the consistent deployment of support wing 14 can be controlled by adjusting the rotation of centralizing arm 15, to ensure that the support system can uniformly and stably support the top of mine. Centralizing arm 15 is designed in multiple sections, and spring element is embedded inside, which can effectively alleviate the impact on both sides of pushing shaft 13 during deployment, reduce the influence of vibration on the support system, and enhance the durability and stability of the system.

[0039] In addition, the pushing part of pushing cylinder 3 is sleeved with joint bearing 31 and connected with pushing shaft 13, so that pushing shaft 13 can obtain greater freedom of movement. This design helps to compensate for centering error, ensures that support wing 14 can be smoothly deployed under variable mine conditions, and avoids the problem of unstable support caused by misplacement and uneven stress of supporting part 1.

[0040] Embodiment three

[0041] Combined Figure 3 As shown in the above embodiment, the embodiment further gives the following contents on the basis of the above embodiment:

[0042] In this embodiment, hollow rib plate 141 is arranged between support wings 14, which is used for connecting side-by-side support wings 14 and reducing the pressure on both sides of mine.

[0043] The support mechanism 4 is connected with the server, and the server alarms in time when the support mechanism 4 is pressed beyond the limit, for safety monitoring of coal mining.

[0044] Please refer to the attached drawings Figure 3The utility model provides a kind of coal mine roof 2 supporting safety monitoring device's embodiment, in this embodiment, supporting wing 14 between supporting device is connected by hollow web 141, hollow web 141 is used to connect and support wing 14 in parallel, to reduce the pressure of both sides of mine tunnel.The web 141 design has the function of pressure reduction, by the pressure of both sides of mine tunnel is reasonably distributed, ensure the uniform stress and stability of supporting structure.The layout of supporting wing 14 and the combination of web 141 make the support of mine tunnel more firm and elastic, can adapt to the slight deformation of mine roof 2, prevent the occurrence of roof 2 collapse and other accidents.

[0045] Meanwhile, supporting mechanism 4 is connected with server, and forms real-time safety monitoring system.When supporting mechanism 4 is pressed and exceeds the set limit value, server will send alarm signal immediately.The alarm system can quickly respond to the change of mine tunnel pressure, and timely remind operator to take necessary safety measures, so as to avoid the dangerous situation that may occur in the process of coal mining.The integrated design of the system provides higher safety guarantee for coal mining operation.

[0046] In specific implementation, parts of supporting mechanism 4 work coordinately through precise hydraulic system and electronic control device, when mine tunnel pressure is too large or supporting part 1 appears abnormal deformation, real-time monitoring system can feedback data in time and respond.Server alarm function can effectively remind on-site personnel and improve the safety of coal mining.

[0047] The working principle and use process of the utility model are as follows:

[0048] Firstly, supporting device is installed in coal mine tunnel.Through hydraulic system and control device, multiple arc-shaped supporting wings 14 of supporting part 1 will be preliminarily adjusted to appropriate position of mine tunnel.The bottom plate 12 of supporting part 1 and pushing shaft 13 on the upper end edge of supporting wing 14 begin to play a role, pushing shaft 13 can gradually push supporting wing 14 to expand to both sides through hydraulic cylinder system, to ensure that supporting wing 14 effectively supports the roof 2 of mine tunnel.The expansion of supporting part 1 is accurately controlled by supporting arm 42 and cylinder system, to ensure that supporting wing 14 expands uniformly and adapts to the actual situation of mine roof 2.

[0049] In the supporting process, square hollow cavity roof 2 at the top of supporting part 1 plays a supporting role, pushing cylinder 3 provides upper support through pushing shaft 13, to further stabilize the supporting structure.Righting disc 16 in roof 2 adjusts both sides of supporting wing 14 through rotary motion, to keep consistent expansion.The multi-section design of righting arm 15 and embedded spring system effectively relieve the impact when pushing shaft 13 is stressed, to ensure the stability of supporting wing 14 expansion process.

[0050] In the supporting part 1 work, the push cylinder 3 is connected with the push shaft 13 through the joint bearing 31, which provides greater freedom of movement, ensures that the supporting wing 14 can be accurately and smoothly unfolded. At the same time, the supporting mechanism 4 is connected with the coal mine server, and the working state of the supporting part 1 is monitored in real time. When the supporting structure is pressed beyond the set limit, the system will immediately send an alarm signal to remind the operator to adjust or stop working in time to ensure the safety of the mine.

[0051] Throughout the process, the hydraulic cylinder and the electronic control system work together to ensure that the supporting device can automatically adjust according to the deformation of the mine tunnel, maintain stable supporting effect, and reduce the risk of human operation errors.

[0052] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A safety monitoring device for roof (2) support based on coal mining, comprising a rotatable support part (1) clamped oppositely, a support mechanism (4) is arranged in the rotatable support part (1), characterized in that: The supporting part (1) includes a bottom plate (12) supported by multiple arc-shaped supporting wings (14) on both sides, and a pushing shaft (13) is arranged on the upper edge of the supporting wing (14) to push the supporting wing (14) to expand to both sides, and the waist part is provided with an expansion shaft (11) parallel to the pushing shaft (13) for supporting the mine tunnel, the supporting mechanism (4) includes a supporting seat (41) connected to the bottom plate (12), a rotatable supporting arm (42) with a square cross section is hinged to the supporting seat (41), a plurality of first oil cylinders (43) connected to the supporting seat (41) are arranged on the front surface of the supporting arm (42) and extend upward, and a plurality of second oil cylinders (44) are arranged on the back surface of the supporting arm (42) and extend downward, and a Z-shaped supporting base (45) is suspended at the end of the second oil cylinder (44), the supporting base (45) is sleeved on the expansion shaft (11) and can drive the first oil cylinder (43) and the second oil cylinder (44) to push the supporting wing (14) to expand when the bottom plate (12) is pressed to sink.

2. The roof (2) support safety monitoring device based on coal mining, according to claim 1, characterized in that: The top center of the supporting part (1) is provided with a square cavity top plate (2), and the two sides are symmetrically hinged with a pushing oil cylinder (3), and the pushing part of the pushing oil cylinder (3) is sleeved on the pushing shaft (13) to provide upper support for the supporting wing (14).

3. The roof (2) support safety monitoring device for coal mining based on the claim 2, characterized in that: A shuttle-shaped centralizing disc (16) is arranged in the top plate (2), and the two ends are connected with a rotatable centralizing arm (15), and the end of the centralizing arm (15) is sleeved on the pushing shaft (13) to control the consistent expansion of the supporting wings (14) on both sides.

4. The roof (2) support safety monitoring device for coal mining based on the claim 3, characterized in that: The centralizing arm (15) is designed in multiple sections, and a spring is embedded therein to alleviate the impact on the pushing shaft (13) on both sides.

5. The roof (2) support safety monitoring device for coal mining based on the claim 4, characterized in that: The supporting wings (14) are clamped with a hollow rib plate (141) to connect the adjacent supporting wings (14) and reduce the pressure on both sides of the mine.

6. The roof (2) support safety monitoring device for coal mining based on the claim 5, characterized in that: The pushing part of the pushing oil cylinder (3) is sleeved with a joint bearing (31) and connected with the pushing shaft (13) to provide greater freedom of movement and compensate for the centering error.

7. The roof (2) support safety monitoring device for coal mining based on any one of claims 1-6, characterized in that: The supporting mechanism (4) is connected with a server, and when the supporting mechanism (4) is pressed beyond the limit, the server alarms in time for safety monitoring of coal mining.

Images