Umbrella-shaped bionic stack type advanced hydraulic support

Abstract

The utility model relates to the technical field of roadway support, in particular to an umbrella-shaped bionic stack type advanced hydraulic support which comprises a mounting base and positioning pieces, hydraulic props are fixedly mounted at four corners of the surface of the mounting base, and a support top beam is movably mounted at the tops of the hydraulic props through the positioning pieces. A connector is movably mounted at the bottom of the surface of the mounting base through a positioning piece, and a pushing jack is fixedly mounted on the surface of the connector. By arranging the mounting base, the supporting top beam, the pushing jack, the side protecting plate and the side protecting beam jack, the supporting device can be well applied to roadway surrounding rock with the three-soft characteristic by utilizing the mounting base with the integrated bottom sealing design, the overall supporting stability of the structure is guaranteed, the space in the center of the top of the mounting base is released, and the supporting effect is good. And the overall structure distribution is reasonable, the occupied space of equipment is saved, the working space of workers is improved, and the underground mining requirement is well met.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support, in particular to an umbrella-shaped bionic pile type advanced hydraulic support. Background Art

[0002] The definition of tunnel support refers to the measures taken to support, reinforce and protect the tunnel in the process of underground mining to prevent deformation, damage and collapse of the tunnel surrounding rock. The advanced support of the drift of the comprehensive mining working face is a major barrier to the full automation of the working face. The support form of single pillars must be moved manually.

[0003] After searching, the patent number is CN212130520U, and the name is a utility model of an umbrella-shaped advance bracket, including a base plate. Through research and analysis, it is found that although the floor area is reduced as much as possible under the premise of ensuring reliable support, the following disadvantages still exist to a certain extent.

[0004] For example, the equipment adopts the foundation floor for bottom support, but when used in the tunnel surrounding rock with "three soft" characteristics, because the tunnel floor is relatively soft, the base of this design is easy to sink into the soft floor, and it is difficult to move the frame, which seriously restricts the advancement of the mining process. In actual application, the distribution of hydraulic supports often affects the layout position and operation efficiency of the transfer machine. The equipment cannot properly store and place the transfer machine trough box. When used in the tunnel surrounding rock with "three soft" characteristics, the transfer machine trough box is in direct contact with the tunnel floor, which is easily affected by the bulging of the floor and affects the actual material feeding. There are certain limitations. In order to solve the above technical problems, we have designed an umbrella-shaped bionic stack-type advanced hydraulic support. Utility Model Content

[0005] The purpose of the utility model is to provide an umbrella-shaped bionic stack-type advanced hydraulic support, which has the advantages of integrated support and load-bearing placement, and solves the problem that the equipment is easily stuck in the soft bottom plate when applied in the tunnel surrounding rock with "three soft" characteristics, making it difficult to move the frame, seriously restricting the advancement of the mining process, and unable to properly store and place the transfer machine trough box, and is easily affected by the bulging of the bottom plate and affecting the actual material feeding.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an umbrella-shaped bionic stack-type advanced hydraulic support, comprising a mounting base and a positioning piece, wherein hydraulic pillars are fixedly installed at the four corners of the mounting base surface, a supporting top beam is movably installed on the top of the hydraulic pillar through a positioning piece, a connecting head is movably installed on the bottom of the mounting base surface through a positioning piece, a push jack is fixedly installed on the surface of the connecting head, a side guard plate is movably installed on the top of the supporting top beam surface through a positioning piece, and a side guard beam jack is movably installed on the bottom of the side guard plate through a positioning piece.

[0007] Preferably, a lining plate is installed inside the hydraulic prop, and hoop shoes are installed outside the lining plate.

[0008] Preferably, the number of the mounting bases is two, the push jack is placed between the two mounting bases, and the output end thereof is fixedly connected to the connection point of the connector.

[0009] Preferably, the output end of the side guard beam jack is movably connected to the supporting top beam through a positioning piece, and the number of the hydraulic struts is four.

[0010] Preferably, a reinforcement plate is fixedly mounted at the center of the top of the mounting base, and jack lug seats are fixedly mounted on the surfaces of the mounting base, the supporting top beam and the side guard plates.

[0011] Preferably, the mounting base is an integral bottom-sealed arrangement, and a reinforcement clamp used in conjunction with a hydraulic support is fixedly mounted on the surface of the mounting base.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model has the advantages of integrated support and load-bearing placement by arranging an installation base, a supporting top beam, a push jack, a side guard plate and a side guard beam jack. The utility model can utilize the installation base with an integrated design and be well applied to the tunnel surrounding rock with "three soft" characteristics to ensure the overall support stability of the structure. The space at the center of the top of the installation base is released, which well meets the space requirement for placing the external transfer machine trough box. The overall structure is reasonably distributed, which saves space occupied by equipment, improves the working space of workers, and is well suitable for underground mining needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a top view schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a side view schematic diagram of the installation base of the utility model;

[0017] Figure 4 This is the formal schematic diagram of the hydraulic prop of the utility model;

[0018] Figure 5 It is a schematic diagram of the separation of the side guard plate and the side guard beam jack of the utility model.

[0019] In the figure: 1. Installation base; 2. Hydraulic support; 3. Support top beam; 4. Push jack; 5. Connector; 6. Hoop tile; 7. Lining plate; 8. Positioning piece; 9. Side guard plate; 10. Side guard beam jack. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 5 , an umbrella-shaped bionic stack type advanced hydraulic support, including a mounting base 1 and a positioning member 8. By setting the mounting base 1, the fixed installation requirements of the hydraulic support 2 can be met, and the overall bottom cover design has a large contact area with the floor, has good adaptability to soft mudstone floors, can ensure good support stability, and is well suitable for tunnel surrounding rocks with "three soft" characteristics. The four corners of the surface of the mounting base 1 are fixedly installed with hydraulic supports 2. By setting the hydraulic supports 2, the height of the supporting top beam 3 can be flexibly adjusted to meet the support requirements of tunnels at different heights. The top of the hydraulic support 2 is movably installed with a supporting top beam 3 through a positioning member 8. By setting the supporting top beam 3, the installation requirements of multiple side guard plates 9 and side guard beam jacks 10 can be met. The bottom of the surface of the mounting base 1 is movably installed through the positioning member 8 A connector 5 is installed. By setting the connector 5, the push jack 4 can be well connected to the mounting base 1 in cooperation with the positioning piece 8. The push jack 4 is fixedly installed on the surface of the connector 5. By setting the push jack 4, the distance between the two mounting bases 1 can be flexibly adjusted during telescopic work. The top of the surface of the supporting top beam 3 is movably installed with a side guard plate 9 through the positioning piece 8. The bottom of the side guard plate 9 is movably installed with a side guard beam jack 10 through the positioning piece 8. By setting the side guard plate 9 and the side guard beam jack 10, the side guard beam jack 10 can be driven to flexibly telescope, and then the angle of the side guard plate 9 can be adjusted to adapt to different extended support requirements in the tunnel. At the same time, there are more than one side guard plate 9 and side guard beam jack 10, which is a split design and has better applicability to complex support in the tunnel;

[0021] A lining plate 7 is installed inside the hydraulic prop 2. By setting the lining plate 7, the cylinder of the hydraulic prop 2 can be protected from direct impact and friction of the displacement member. A hoop tile 6 is installed on the outside of the lining plate 7. By setting the hoop tile 6, relative sliding of the internal components of the hydraulic prop 2 can be prevented when the hydraulic prop 2 is in a static state, thereby ensuring the stability and reliability of the hydraulic prop 2.

[0022] There are two mounting bases 1, and the push jack 4 is placed between the two mounting bases 1, and its output end is fixedly connected to the connection point of the connector 5;

[0023] The output end of the side guard beam jack 10 is movably connected to the supporting top beam 3 through the positioning member 8, and the number of the hydraulic support 2 is four;

[0024] A reinforcement plate is fixedly installed at the center of the top of the mounting base 1, and jack lug seats are fixedly installed on the surfaces of the mounting base 1, the supporting top beam 3 and the side guard plate 9;

[0025] The mounting base 1 is an integral bottom-sealed arrangement, and a reinforcement clamp used in conjunction with the hydraulic support 2 is fixedly mounted on the surface of the mounting base 1;

[0026] The positioning member 8 includes a pin shaft and a D-shaped pin seat, which is used to meet the requirements of movable installation between the connecting parts;

[0027] The push jack 4 is actually a double-headed jack.

[0028] When in use, the extension height of the hydraulic support 2 is adjusted to make the supporting top beam 3 move up until the top is pressed and contacted with the tunnel. When the extension heights of two adjacent hydraulic supports 2 are different, the supporting top beam 3 will be transformed into an inclined state, which is well suited for the complex support environment inside the tunnel; when extended support is needed, the side guard beam jack 10 is controlled to extend to make the side guard plate 9 rotate upward to contact with the tunnel, so as to achieve the purpose of extended support. At the same time, since multiple side guard plates 9 and side guard beam jacks 10 are designed as split parts, they can also be well suited for the complex support environment inside the tunnel; and when the driving push jack 4 is extended and retracted, the distance between the two mounting bases 1 can be flexibly adjusted, and the frame moving operation can be conveniently realized; it is applied to the tunnel surrounding rock with "three soft" characteristics, and the tunnel supported by anchor rods and anchor cables is difficult to operate due to a large number of anchors. The solid head cannot be suspended by the stable layer, and is severely deformed, especially under the action of the advance pressure of mining. The cross-sectional morphology after deformation is characterized by bulging on the top surface, overall shrinkage on the side, and bulging in the middle of the bottom surface. The mounting base 1 with an overall bottom cover design has a large contact area with the floor, has a good adaptability to soft mudstone floors, and can ensure good stability of the bracket. At the same time, the space at the center of the top of the mounting base 1 can be used as the bottom support plate of the transfer machine trough box. The landing section trough box is all located on the mounting base 1 and does not directly contact the bottom plate of the tunnel. When the transfer machine or the bracket is moved, the transfer machine chute and the mounting base 1 slide relative to each other, which can prevent the transfer machine from being affected by the bulging of the floor, and the movement resistance is small. At the same time, the mounting base 1 and the transfer machine can guide and constrain each other, and the width dimension can be reduced to a minimum, so as to adapt to the shrinkage deformation of the tunnel to the maximum extent.

[0029] To sum up: the umbrella-shaped bionic stack-type advanced hydraulic support, by arranging an installation base 1, a supporting top beam 3, a push jack 4, a side guard plate 9 and a side guard beam jack 10, solves the problem that the equipment is used in the tunnel surrounding rock with "three soft" characteristics, it is easy to get stuck in the soft bottom plate, the frame is difficult to move, and the advancement of the mining process is seriously restricted. In addition, the transfer machine trough box cannot be properly stored and placed, and the actual material feeding is easily affected by the bulging of the bottom plate.

Claims

1. An umbrella-shaped bionic stack type advanced hydraulic support, comprising a mounting base (1) and a positioning member (8), characterized in that: Hydraulic struts (2) are fixedly mounted at the four corners of the surface of the mounting base (1); a supporting top beam (3) is movably mounted on the top of the hydraulic struts (2) via a positioning piece (8); a connecting head (5) is movably mounted on the bottom of the surface of the mounting base (1) via a positioning piece (8); a push jack (4) is fixedly mounted on the surface of the connecting head (5); a side guard plate (9) is movably mounted on the top of the surface of the supporting top beam (3) via a positioning piece (8); and a side guard beam jack (10) is movably mounted on the bottom of the side guard plate (9) via a positioning piece (8).

2. The umbrella-shaped bionic stack type advanced hydraulic support according to claim 1, characterized in that: A lining plate (7) is installed inside the hydraulic prop (2), and a hoop shoe (6) is installed outside the lining plate (7).

3. The umbrella-shaped bionic stack type advanced hydraulic support according to claim 1, characterized in that: The number of the mounting bases (1) is two, the push jack (4) is placed between the two mounting bases (1), and its output end is fixedly connected to the connection point of the connector (5).

4. The umbrella-shaped bionic stack type advanced hydraulic support according to claim 1, characterized in that: The output end of the side guard beam jack (10) is movably connected to the supporting top beam (3) via a positioning piece (8), and the number of the hydraulic struts (2) is four.

5. The umbrella-shaped bionic stack type advanced hydraulic support according to claim 1, characterized in that: A reinforcing plate is fixedly mounted at the center of the top of the mounting base (1), and jack lug seats are fixedly mounted on the surfaces of the mounting base (1), the supporting top beam (3) and the side guard plate (9).

6. The umbrella-shaped bionic stack type advanced hydraulic support according to claim 1, characterized in that: The mounting base (1) is of an integral bottom-sealed configuration, and a reinforcement clamp for use with the hydraulic support (2) is fixedly mounted on the surface of the mounting base (1).

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