Mining tunneling working face protection support
By designing a mining boring working face protection bracket including a U-shaped frame, a hoisting mechanism and a transverse movement mechanism, the problems of synchronousness and flexibility of the boring working face guard plate support are solved, and effective protection of the boring working face is achieved.
Patent Information
- Application Number
- CN202422232531.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-12
AI Technical Summary
During mining, the boring working surface needs synchronous support to prevent top collapse, but the prior art is difficult to achieve synchronousness and flexibility of guard panel support.
A mining boring working face protective bracket is designed, including a U-shaped frame with an opening facing downward, a hoisting mechanism and a transverse movement mechanism. By symmetrically configuring the guard plate on the top of the frame, the upward and downward movement of the guard plate is achieved by using the hoisting mechanism and the transverse movement mechanism, and the frame moves forward with the excavation work surface.
The synchronization and flexibility of the guard plate support in the excavation working face is achieved, which can effectively prevent collapse and improve the safety and reliability of the excavation working face.
Smart Images
Figure CN222991554U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mining equipment, in particular to a protective support for a mining tunneling working face. Background Art
[0002] The protective support is a device for controlling the mine pressure of the coal mining face. The mine pressure of the mining face acts on the protective support in the form of external load. It is one of the main equipment for mining work, especially important when the mining difficulty of coal mines increases. To ensure the personal safety of tunneling workers and avoid unsupported roof operation, the problem of temporary support in the tunneling work must be solved. According to the extension of the tunneling working face, the protective support can also make corresponding extension actions, so as to ensure that there is always a protective plate support in the tunneling working face to prevent the roof from collapsing.
[0003] Therefore, there is an urgent need for a technical solution to solve the above problems. Summary of the Utility Model
[0004] In view of the above problems, the present utility model is proposed to provide a protective support for a mining tunneling working face that can overcome or at least partially solve the above problems, and can solve the synchronism of the protective plate support in the tunneling working face to achieve synchronous auxiliary support for the tunneling working face.
[0005] Specifically, the present utility model provides a protective support for a mining tunneling working face, including
[0006] a U-shaped frame with an opening facing downwards, a driving base for supporting the walking of the frame, and protective plates symmetrically arranged on the top of the frame;
[0007] a lifting mechanism, arranged between the top of the frame and the protective plate, and configured to support the up and down movement of the protective plate;
[0008] a transverse movement mechanism, arranged on the top of the frame, driving the lifting mechanism to reciprocate transversely along the length direction of the frame.
[0009] By designing the frame into a U-shaped frame with an opening facing downwards, the lower side of the frame can be open, which will not affect the operation of other equipment. In the front and back directions of the frame, the protective plates symmetrically arranged on the top of the frame can realize two groups of supporting working faces. The front one can support the just-tunneled mining face, and the back one can cooperate with workers to implement permanent shaft surface support. The lifting mechanism drives the protective plate to support the roof of the tunneling working face, and the transverse movement mechanism can drive the two groups of protective plates to support different working faces respectively, and cooperate with the frame to continuously move forward with the tunneling working face.
[0010] Optionally, an adjustment bracket is provided at the top of the frame. The jacking mechanism includes a jacking cross beam symmetrically mounted on the adjustment bracket. An intermediate position of the jacking cross beam is provided with a jacking base. An upper side of the jacking base is provided with a swingable guard plate base, and the guard plate is arranged on the guard plate base.
[0011] The jacking cross beam mounted on the adjustment bracket can stably support the guard plate, improving the support stability of the guard plate. An upper side of the jacking base is provided with a swingable guard plate base, which can utilize the swing gap of the guard plate base to improve the matching degree between the guard plate and the roof of the mining face, and improve the support reliability of the guard plate for the roof of the mining face.
[0012] Optionally, a jacking table is slidably connected to the jacking base. The guard plate base is arranged on the top of the jacking table, and an intermediate position of the guard plate base is hinged to the jacking table. A jacking driving member is arranged inside the jacking base, and a U-shaped jacking support is arranged on the lower side of the jacking cross beam to support the jacking driving member.
[0013] By providing the jacking table and the jacking base with a sliding fit, and using the jacking driving member arranged inside the jacking base to drive the jacking table to move up and down. Since the intermediate position of the guard plate base is hinged to the jacking table, the guard plate base and the jacking table can rotate around the hinge point, and the jacking table can limit the rotation of the guard plate base around the hinge point to ensure the support reliability of the guard plate base for the guard plate.
[0014] Optionally, two sides of the open end of the jacking support are connected to the jacking cross beam, and the bottom of the jacking driving member is connected to the bottom of the open end of the jacking support.
[0015] Connecting two sides of the open end of the jacking support to the jacking cross beam ensures the firmness of the support of the jacking support, and the bottom of the open end of the jacking support can stably support the jacking driving member.
[0016] Optionally, the transverse movement mechanism includes a transverse movement driving member symmetrically mounted on the adjustment bracket. A transverse movement support plate is arranged between the movable end of the transverse movement driving member and the jacking cross beam, and the transverse movement driving member drives the jacking cross beam to slide horizontally.
[0017] By arranging a transverse movement support plate between the movable end of the transverse movement driving member and the jacking cross beam, the contact area between the transverse movement driving member and the jacking cross beam can be increased, thereby improving the stability of the transverse movement driving member to drive the jacking cross beam to slide horizontally.
[0018] Optionally, a transverse movement guide rail is provided on the upper side of the adjustment bracket, and the jacking cross beam is slidably engaged with the transverse movement guide rail.
[0019] The transverse movement guide rail can guide the horizontal movement of the jacking cross beam when the transverse movement driving member drives the jacking cross beam to slide horizontally.
[0020] In the technical solution of the present utility model, due to the guard plates symmetrically arranged on the top of the frame in the front-back direction of the frame, two sets of supporting working surfaces can be realized. The front one can support the just-excavated mining face, and the rear one can cooperate with workers to implement the permanent shaft surface support.
[0021] Furthermore, in the technical solution of the present utility model, a swingable guard plate base is provided on the upper side of the jacking base, which can utilize the swing gap of the guard plate base to improve the matching degree between the guard plate and the roof of the excavation working face, and improve the support reliability of the guard plate for the roof of the excavation working face.
[0022] From the following detailed description of specific embodiments of the present utility model in conjunction with the accompanying drawings, those skilled in the art will become more clear about the above and other objects, advantages and features of the present utility model. Description of the Drawings
[0023] Hereinafter, some specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings in an exemplary but non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0024] Figure 1 is a schematic structural diagram of a guard plate according to an embodiment of the present utility model;
[0025] Figure 2 is a schematic structural diagram of a frame according to an embodiment of the present utility model;
[0026] Figure 3 is a schematic structural diagram of an adjustment bracket according to an embodiment of the present utility model;
[0027] Figure 4 is a schematic structural diagram of a transverse movement driving member according to an embodiment of the present utility model;
[0028] Figure 5 is a schematic structural diagram of a jacking base according to an embodiment of the present utility model.
[0029] Description of Reference Numerals of Components
[0030] 1. Frame; 2. Guard plate; 3. Adjustment bracket; 4. Jacking cross beam; 5. Jacking base; 6. Guard plate base; 7. Jacking platform; 8. Jacking driving member; 9. Jacking bracket; 10. Transverse movement driving member; 11. Transverse movement support plate; 12. Transverse movement guide rail. Detailed Embodiments
[0031] The following refers to Figures 1 to 5The specific implementation manners of the embodiments of the present utility model will be described. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.
[0032] Unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present utility model according to specific circumstances.
[0033] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", or "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0034] In the description of this embodiment, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
[0035] As Figure 1 shown, and with reference to Figures 2 to 5, an embodiment of the present utility model provides a protective support for a mining tunneling working face, which includes a U-shaped vehicle frame 1 with an opening facing downward, a driving base for supporting the movement of the vehicle frame 1, and guard plates 2 symmetrically arranged on the top of the vehicle frame 1. It is arranged between the top of the vehicle frame 1 and the guard plates 2 and is configured to support the up and down movement of the guard plates 2. It is arranged on the top of the vehicle frame 1 and drives the lifting mechanism to reciprocate horizontally along the length direction of the vehicle frame 1.
[0036] By designing the vehicle frame 1 into a U-shaped vehicle frame 1 with an opening facing downward, the lower side of the vehicle frame 1 can be made open, which will not affect the operation of other equipment. In the front and rear directions of the vehicle frame 1, the guard plates 2 symmetrically arranged on the top of the vehicle frame 1 can realize the support of two groups of working faces. The front one can support the newly tunneled mining face, and the rear one can cooperate with workers to implement the permanent shaft surface support. The lifting mechanism drives the guard plates 2 to support the roof of the tunneling working face, and the transverse movement mechanism can drive the two groups of guard plates 2 to support different working faces respectively, and cooperate with the vehicle frame 1 to continuously move forward along with the tunneling working face.
[0037] In some embodiments of the present utility model, an adjusting bracket 3 is arranged on the top of the vehicle frame 1. The lifting mechanism includes a lifting cross beam 4 symmetrically erected on the adjusting bracket 3. A lifting base 5 is arranged at the middle position of the lifting cross beam 4. A swingable guard plate base 6 is arranged on the upper side of the lifting base 5, and the guard plate 2 is arranged on the guard plate base 6.
[0038] The lifting cross beam 4 erected on the adjusting bracket 3 can stably support the guard plate 2 and improve the support stability of the guard plate 2. A swingable guard plate base 6 is arranged on the upper side of the lifting base 5, which can utilize the swing gap of the guard plate base 6 to improve the matching degree between the guard plate 2 and the roof of the excavation working face and improve the support reliability of the guard plate 2 for the roof of the excavation working face.
[0039] In some embodiments of the present utility model, a lifting platform 7 is slidably connected to the lifting base 5. The guard plate base 6 is arranged on the top of the lifting platform 7, and the middle position of the guard plate base 6 is hinged to the lifting platform 7. A lifting driving member 8 is arranged inside the lifting base 5, and a U-shaped lifting support 9 is arranged on the lower side of the lifting cross beam 4 to support the lifting driving member 8.
[0040] By setting the lifting platform 7 to be slidably matched with the lifting base 5 and using the lifting driving member 8 arranged inside the lifting base 5 to drive the lifting platform 7 to move up and down, and the middle position of the guard plate base 6 is hinged to the lifting platform 7, so that the guard plate base 6 and the lifting platform 7 can rotate around the hinge point, and the lifting platform 7 can also limit the rotation of the guard plate base 6 around the hinge point to ensure the support reliability of the guard plate base 6 for the guard plate 2.
[0041] In some embodiments of the present utility model, both sides of the open end of the jacking support 9 are connected to the jacking cross beam 4, and the bottom of the jacking driving member 8 is connected to the bottom of the open end of the jacking support 9. Connecting both sides of the open end of the jacking support 9 to the jacking cross beam 4 ensures the firmness of the support of the jacking support 9, while the bottom of the open end of the jacking support 9 can stably support the jacking driving member 8.
[0042] In some embodiments of the present utility model, the transverse movement mechanism includes a transverse movement driving member 10 symmetrically arranged on the adjusting support 3. A transverse movement support plate 11 is arranged between the movable end of the transverse movement driving member 10 and the jacking cross beam 4. The transverse movement driving member 10 drives the jacking cross beam 4 to slide horizontally. By arranging the transverse movement support plate 11 between the movable end of the transverse movement driving member 10 and the jacking cross beam 4, the contact area between the transverse movement driving member 10 and the jacking cross beam 4 can be increased by using the transverse movement support plate 11, thereby improving the stability of the transverse movement driving member 10 driving the jacking cross beam 4 to slide horizontally.
[0043] In some embodiments of the present utility model, a transverse movement guide rail 12 is arranged on the upper side of the adjusting support 3. The jacking cross beam 4 is in sliding fit with the transverse movement guide rail 12. When the transverse movement driving member 10 drives the jacking cross beam 4 to slide horizontally, the transverse movement guide rail 12 can guide the horizontal movement of the jacking cross beam 4.
[0044] During use, the jacking base 5 on the front jacking cross beam 4 drives the guard plate 2 to support the just-excavated coal mining face, and the jacking base 5 on the rear jacking cross beam 4 drives the guard plate 2 to assist workers in performing permanent support treatment for the excavation face. After the treatment is completed, the rear jacking base 5 drives the guard plate 2 to descend, and then the transverse movement driving member 10 drives the rear jacking cross beam 4 to move towards the front jacking cross beam 4. After the transverse movement driving member 10 moves to the maximum stroke, the jacking base 5 drives the guard plate 2 to rise to the excavation face, and the jacking base 5 on the front jacking cross beam 4 drives the guard plate 2 to descend. The vehicle frame 1 advances towards the coal mining face, and at the same time, the transverse movement driving member 10 drives the rear jacking cross beam 4 to move in the opposite direction to the movement of the vehicle frame 1. The vehicle frame 1 is used to drive the front jacking cross beam 4 to move to a new excavation face, so that the guard plate 2 on the front jacking cross beam 4 can support the new excavation face, and the repeated movement is used to cooperate with the support of the excavation face to achieve the protection of the excavation face.
[0045] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present utility model have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present utility model can still be directly determined or derived from the disclosed content of the present utility model without departing from the spirit and scope of the present utility model. Therefore, the scope of the present utility model should be understood and determined to cover all these other variations or modifications.
Claims
1. A mining excavation working face protection support, characterized in that: include, A U-shaped frame with an opening facing downward, a driving base supporting the frame for movement, and a guard plate symmetrically arranged on the top of the frame; A lifting mechanism is disposed between the top of the frame and the guard plate, and is configured to support the guard plate to move up and down; The transverse movement mechanism is arranged on the top of the frame and drives the lifting mechanism to move transversely back and forth along the length direction of the frame.
2. The mining excavation working face protection support according to claim 1 is characterized in that: An adjusting bracket is arranged on the top of the frame, and the lifting mechanism comprises a lifting beam symmetrically arranged on the adjusting bracket, a lifting base is arranged in the middle of the lifting beam, a swingable guard plate base is arranged on the upper side of the lifting base, and the guard plate is arranged on the guard plate base.
3. The mining excavation working face protection support according to claim 2 is characterized in that: A lifting platform is slidably connected to the lifting base, the guard plate base is arranged on the top of the lifting platform, and the middle position of the guard plate base is hinged to the lifting platform, a lifting drive component is arranged in the lifting base, and a U-shaped lifting bracket is arranged on the lower side of the lifting beam to support the lifting drive component.
4. The mining excavation working face protection support according to claim 3 is characterized in that: Both sides of the opening end of the jacking bracket are connected to the jacking beam, and the bottom of the jacking drive member is connected to the bottom of the opening end of the jacking bracket.
5. The mining excavation working face protection support according to claim 1, characterized in that: The transverse movement mechanism includes a transverse movement driving member symmetrically mounted on the adjustment bracket, a transverse movement support plate is arranged between the movable end of the transverse movement driving member and the lifting beam, and the transverse movement driving member drives the lifting beam to slide in the transverse direction.
6. The mining excavation working face protection support according to claim 5, characterized in that: A transverse guide rail is arranged on the upper side of the adjusting bracket, and the lifting beam is slidably matched with the transverse guide rail.