Auxiliary removal hydraulic support for removing roadway

Abstract

The auxiliary removal hydraulic support for the retracement roadway comprises a supporting assembly and a support moving assembly, the supporting assembly comprises a base, a stand column and a top plate, and the stand column is connected between the base and the top plate and can stretch out and draw back in the vertical direction; the base is divided into an upper supporting part and a lower containing part in the vertical direction, the upper supporting part is used for installing the stand column, the lower containing part is provided with an installation cavity with one end open, the frame moving assembly comprises a frame moving jack and a pushing support, the frame moving jack is arranged in the installation cavity, one end of the frame moving jack is connected with the pushing support, and the other end of the frame moving jack is hinged to the base. According to the auxiliary removal hydraulic support for retracement of the roadway, the base is layered, the mounting cavity is reserved, the support moving jack is mounted in the base through the mounting cavity, and therefore a gap does not need to be reserved in the middle of the base for the support moving jack, the width of the base can be reduced, the whole device is narrower, and operation is more convenient. The device can be applied to a narrow space on one side of a goaf.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine equipment, and in particular to an auxiliary removal hydraulic support for a retreat tunnel. Background Art

[0002] With the continuous improvement of coal mining capacity and mining speed, the installation and withdrawal of fully-mechanized mining equipment on the working face has become more frequent. The rapid and safe withdrawal of fully-mechanized mining equipment on the working face is one of the key technologies for safe and efficient production in mines. Among them, the removal of hydraulic supports occupies a dominant position in the removal of the entire fully-mechanized mining equipment.

[0003] In recent years, various types of retraction hydraulic supports have been developed for the removal of hydraulic supports in comprehensive mining working faces, which have achieved effective support for the roof of the retreat tunnel. However, due to the generally poor stability of the roof of the retreat tunnel, even with the existence of retraction supports, the gangue on the goaf side is still easy to sneak into the retreat operation space. Therefore, setting up auxiliary supports on the side of the retreat tunnel close to the goaf is a common means to solve this problem. However, due to the narrow space on the side of the retreat tunnel close to the goaf, traditional auxiliary hydraulic supports are difficult to use, and auxiliary supports are mostly provided by manually driving single hydraulic pillars or manually erecting I-beams, which are costly and have low operating efficiency. Summary of the invention

[0004] The present invention aims to solve the technical problems in the related technologies. To this end, an embodiment of the present invention proposes an auxiliary hydraulic support for removing the withdrawal tunnel. The base of the auxiliary hydraulic support for removing the withdrawal tunnel is layered and has a reserved installation cavity. The frame shifting jack is installed inside the base using the installation cavity, so there is no need to reserve a gap in the middle of the base for the frame shifting jack, thereby reducing the width of the base and making the equipment narrower as a whole so that it can be used in the narrow space on one side of the goaf.

[0005] The auxiliary removal hydraulic support for the retreat tunnel of the embodiment of the present invention includes: a support assembly, the support assembly includes a base, a column and a top plate, the column is vertically arranged and connected between the base and the top plate, the top plate is used to support the top plate of the tunnel, the column is retractable in the up and down directions, the base is divided into an upper supporting part and a lower receiving part in the up and down directions, the upper supporting part is used to install the column, and the lower receiving part has an installation cavity with an opening at one end; a moving frame assembly, the moving frame assembly includes a moving frame jack and a push support, the moving frame jack is arranged in the installation cavity, and one end of the moving frame jack extends out of the opening of the installation cavity and is connected to the push support, and the other end is hinged to the base.

[0006] The auxiliary removal hydraulic support for the retreat tunnel of the embodiment of the present invention comprises a support assembly including a base, a column and a top plate, the column is vertically arranged and connected between the base and the top plate, the top plate is used to support the top plate of the tunnel, the column is retractable in the up and down directions, the base is divided into an upper support part and a lower receiving part in the up and down directions, the upper support part is used to install the column, the lower receiving part has an installation cavity with an opening at one end, the moving frame assembly comprises a moving frame jack and a push support, the moving frame jack is arranged in the installation cavity The base is layered and the mounting cavity is reserved, and the mounting cavity is used to install the frame jack inside the base, thereby eliminating the need to reserve a space in the middle of the base for the frame jack. This reduces the width of the base and makes the overall equipment narrower so that it can be used in the narrow space on one side of the goaf, replacing traditional manual single hydraulic struts or manual I-beam erection, thereby reducing costs and improving construction efficiency.

[0007] In some embodiments, the support assembly further includes a telescopic rod, a sleeve is provided on the support portion, one end of the telescopic rod is connected to the top plate, and the other end is slidably fitted in the sleeve.

[0008] In some embodiments, the pillars include a plurality of pillars arranged at intervals.

[0009] In some embodiments, the plurality of columns include at least one front column and one rear column, and the front column and the rear column are spaced apart in the front-to-rear direction of the top plate.

[0010] In some embodiments, the sleeve is disposed between the front pillar and the rear pillar.

[0011] In some embodiments, the telescopic rod and the column are both hinged to the top plate.

[0012] In some embodiments, a column socket is provided on the support portion, and the lower end of the column is hinged in the column socket.

[0013] In some embodiments, the moving frame assembly also includes a pulling frame rod, the pulling frame rod includes a guide rod and a connecting rod, the installation cavity includes a guide cavity and a accommodating cavity arranged in parallel in the width direction of the base, the guide rod is inserted into the guide cavity, the moving frame jack is installed in the accommodating cavity, the connecting rod is located on the side of the base facing the push support and is connected to the guide rod, and the outer end of the moving frame jack is hinged to one side of the connecting rod, and the other side of the connecting rod is hinged to the push support.

[0014] In some embodiments, the guide cavity includes a left guide cavity and a right guide cavity respectively located on both sides of the accommodating cavity, and the guide rod includes a first guide rod and a second guide rod connected at both ends of the connecting rod, and the first guide rod and the second guide rod are respectively engaged in the left guide cavity and the right guide cavity.

[0015] In some embodiments, the left guide cavity and the right guide cavity are symmetrical with respect to the accommodating cavity, and the accommodating cavity is located in the middle of the base in the width direction of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an auxiliary hydraulic support for withdrawing a tunnel according to an embodiment of the present invention.

[0017] Figure 2 It is a top view of the auxiliary removal hydraulic support for the retreat tunnel according to an embodiment of the present invention.

[0018] Figure 3 It is a structural schematic diagram of a base of an auxiliary hydraulic support for withdrawing a tunnel according to an embodiment of the present invention.

[0019] Figure 4 yes Figure 3 Cross-sectional view along AA direction.

[0020] Figure 5 It is a structural schematic diagram of a pull rod for assisting in removing a hydraulic support in a withdrawn lane according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] Top plate 1, column 2, telescopic rod 3, sleeve 4, base 5, column socket 51, accommodating cavity 52, guide cavity 53, frame shifting jack 6, frame pulling rod 7, guide rod 71, connecting rod 72, connecting ear plate 73, pushing bracket 8, connecting seat 81, and round link chain 82. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] like Figure 1-Figure 5 As shown, the auxiliary hydraulic support for withdrawing the tunnel according to the embodiment of the present invention includes a support assembly and a frame moving assembly.

[0025] Specifically, the support assembly includes a base 5, a column 2 and a top plate 1. The column 2 is vertically arranged and connected between the base 5 and the top plate 1. The top plate 1 is used to support the top plate 1 of the tunnel. The column 2 is retractable in the up and down directions. The base 5 is divided into an upper support portion and a lower receiving portion in the up and down directions. The upper support portion is used to install the column 2, and the lower receiving portion has an installation cavity with an opening at one end. The moving frame assembly includes a moving frame jack 6 and a push support. The moving frame jack 6 is arranged in the installation cavity, and one end of the moving frame jack 6 extends out of the opening of the installation cavity and is connected to the push support, and the other end is hinged to the base 5. During the specific operation, the push support moves with other retrieval equipment and drags the support assembly into place. The moving frame jack 6 uses the push support 8 as a fulcrum to push the base 5 to the side of the goaf, and then the column extends to control the top plate 1 to rise until it contacts the tunnel top plate 1 to achieve auxiliary support.

[0026] It should be noted that the traditional support base can be divided into a wide-body base and a narrow-body base according to the installation position of the push mechanism. The wide-body base is arranged with two rows of columns in the left and right directions. The frame moving mechanism composed of the frame moving jack and the frame moving beam hinged to each other is arranged in the middle gap of the base. The frame moving rod is generally set as an overall long box-shaped structure. The movement of the support is achieved by the push jack and the frame moving beam. The narrow-body base is arranged with a single row of columns in the left and right directions. There is no installation space for the frame moving mechanism inside the base. Therefore, the frame moving jack is generally set at the front and rear ends of the base to achieve the movement of the support. In other words, the frame moving jack needs to occupy a separate assembly position, which leads to a large overall space occupation of the equipment and is difficult to use in a small space.

[0027] Compared with the traditional bracket, the present application reserves an installation cavity on the base 5 of the bracket, and uses the installation cavity to accommodate the frame shifting jack 6. In this way, there is no need to reserve a space in the middle of the base 5 for the frame shifting jack 6, thereby reducing the width of the base 5 and making the overall equipment narrower so that it can be used in the narrow space on one side of the goaf.

[0028] The auxiliary hydraulic support for withdrawing the tunnel of the embodiment of the present invention comprises a support assembly including a base 5, a column 2 and a top plate 1. The column 2 is vertically arranged and connected between the base 5 and the top plate 1. The top plate 1 is used to support the top plate 1 of the tunnel. The column 2 is retractable in the up and down directions. The base 5 is divided into an upper support part and a lower receiving part in the up and down directions. The upper support part is used to install the column 2. The lower receiving part has an installation cavity with an opening at one end. The moving frame assembly comprises a moving frame jack 6 and a push support. The moving frame jack 6 is arranged in the installation cavity, and the moving frame jack One end of the jack 6 extends out of the opening of the installation cavity and is connected to the push support, and the other end is hinged to the base 5. Therefore, by layering the base 5 and reserving the installation cavity, the frame shifting jack 6 is installed inside the base 5 using the installation cavity, so that there is no need to reserve a space in the middle of the base 5 for the frame shifting jack 6, and the width of the base 5 can be reduced, making the equipment narrower as a whole, so that it can be used in the narrow space on one side of the goaf, replacing the traditional manual single hydraulic support or manual erection of I-beams, reducing costs and improving construction efficiency.

[0029] Furthermore, the support assembly further includes a telescopic rod 3, a sleeve 4 is provided on the support portion, one end of the telescopic rod 3 is connected to the top plate 1, and the other end is slidably fitted in the sleeve 4. Thus, when the column 2 is extended or retracted, the telescopic rod 3 can slide up and down in the sleeve 4, thereby ensuring the lateral and longitudinal stability of the overall structure of the bracket.

[0030] Preferably, if Figure 1 As shown, the columns 2 include a plurality of columns arranged at intervals. It is understandable that the plurality of columns 2 can improve the supporting capacity of the top plate 1 on the one hand, and facilitate maintaining the balance and stability of the support on the other hand.

[0031] Furthermore, if Figure 1 As shown, the plurality of columns 2 include at least one front column and one rear column, and the front column and the rear column are arranged at intervals in the front-to-back direction of the top plate 1. In other words, the front column and the rear column support the front end and the rear end of the top plate 1 respectively, avoiding the imbalance problem caused by insufficient support on one side and improving the support stability.

[0032] Preferably, the sleeve 4 is arranged between the front column and the rear column. That is, the telescopic rod 3 is located in the middle position of the front column and the rear column, and its stabilizing effect is best and the balance is better.

[0033] Furthermore, the telescopic rod 3 and the column 2 are both hinged to the top plate 1, and a column socket 51 is provided on the support portion, and the lower end of the column 2 is hinged in the column socket 51. In other words, both ends of the column 2 are hingedly connected to the top plate 1 and the base 5, and the telescopic rod 3 is hingedly connected to the top plate 1, and the connection is stable and has a certain degree of flexibility.

[0034] Furthermore, if Figure 2 and Figure 5As shown, the frame moving assembly also includes a frame pulling rod 7, which includes a guide rod 71 and a connecting rod 72. The installation cavity includes a guide cavity 53 and a receiving cavity 52 arranged in parallel in the width direction of the base 5. The guide rod 71 is inserted into the guide cavity 53. The frame moving jack 6 is installed in the receiving cavity 52. ​​The connecting rod 72 is located on the side of the base 5 facing the push support and is connected to the guide rod 71. The outer end of the frame moving jack 6 is hinged to one side of the connecting rod 72, and the other side of the connecting rod 72 is hinged to the push support 8. Figure 5 As shown, connecting ear plates 73 are provided on both sides of the connecting rod 72, wherein the connecting ear plate 73 on one side is hinged to the frame shifting jack 6, and the connecting ear plate 73 on the other side is connected to the push bracket 8 through a round link chain 82 and a connecting seat 81.

[0035] Specifically, the guide cavity 53 includes a left guide cavity and a right guide cavity respectively located on both sides of the accommodating cavity 52, and the guide rod 71 includes a first guide rod and a second guide rod connected to both ends of the connecting rod 72, and the first guide rod and the second guide rod are respectively matched in the left guide cavity and the right guide cavity. Therefore, the setting of the guide rod 71 can play a guiding role in the movement of the base 5. Specifically, when the moving frame jack 6 pushes the base 5 to move, since the connecting rod 72 is connected to the push bracket 8, the position of the pull frame rod 7 is fixed, and accordingly, the position and direction of the guide rod 71 are also fixed. Since the guide rod 71 cooperates with the guide cavity 53, the entire base 5 will move along the extension direction of the guide rod 71, and there will be no problem of position offset.

[0036] In addition, since the connecting rod 72 is located between the first guide rod and the second guide rod, after the frame moving jack 6 is connected to the connecting rod 72, the force on the frame pulling rod 7 is balanced, and the problem of torsion damaging the rod body will not occur.

[0037] Preferably, the left guide cavity and the right guide cavity are symmetrical about the accommodating cavity 52 , and the accommodating cavity 52 is located in the middle of the base 5 in the width direction of the base 5 .

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axis", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0043] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A hydraulic support for auxiliary removal of a retreat tunnel, characterized in that: include: A support assembly, the support assembly includes a base, a column and a top plate, the column is vertically arranged and connected between the base and the top plate, the top plate is used to support the top plate of the tunnel, the column is retractable in the up and down direction, the base is divided into an upper support part and a lower receiving part in the up and down direction, the upper support part is used to install the column, and the lower receiving part has an installation cavity with one end open; The frame moving assembly includes a frame moving jack and a push support. The frame moving jack is arranged in the installation cavity, and one end of the frame moving jack extends out of the opening of the installation cavity and is connected to the push support, and the other end is hinged to the base.

2. The auxiliary hydraulic support for withdrawing a tunnel according to claim 1, characterized in that: The support assembly also includes a telescopic rod, a sleeve is provided on the support portion, one end of the telescopic rod is connected to the top plate, and the other end is slidably fitted in the sleeve.

3. The auxiliary hydraulic support for withdrawing a tunnel according to claim 2, characterized in that: The columns include a plurality of columns that are arranged at intervals.

4. The auxiliary hydraulic support for withdrawing a tunnel according to claim 3, characterized in that: The plurality of columns at least include a front column and a rear column, and the front column and the rear column are spaced apart in the front-rear direction of the top plate.

5. The auxiliary hydraulic support for withdrawing a tunnel according to claim 4, characterized in that: The sleeve is arranged between the front column and the rear column.

6. The auxiliary hydraulic support for withdrawing a tunnel according to claim 2, characterized in that: The telescopic rod and the upright column are both hinged to the top plate.

7. The auxiliary hydraulic support for withdrawing a tunnel according to claim 6, characterized in that: The support portion is provided with a column socket, and the lower end of the column is hinged in the column socket.

8. The auxiliary hydraulic support for withdrawing a tunnel according to claim 1, characterized in that: The moving frame assembly also includes a pulling frame rod, which includes a guide rod and a connecting rod. The installation cavity includes a guide cavity and a accommodating cavity arranged in parallel in the width direction of the base. The guide rod is inserted into the guide cavity, and the moving frame jack is installed in the accommodating cavity. The connecting rod is located on the side of the base facing the push support and is connected to the guide rod, and the outer end of the moving frame jack is hinged to one side of the connecting rod, and the other side of the connecting rod is hinged to the push support.

9. The auxiliary hydraulic support for withdrawing a tunnel according to claim 8, characterized in that: The guide cavity includes a left guide cavity and a right guide cavity respectively located on both sides of the accommodating cavity, and the guide rod includes a first guide rod and a second guide rod connected at both ends of the connecting rod, and the first guide rod and the second guide rod are respectively engaged in the left guide cavity and the right guide cavity.

10. The auxiliary hydraulic support for withdrawing a tunnel according to claim 9, characterized in that: The left guide cavity and the right guide cavity are symmetrical with respect to the accommodating cavity, and the accommodating cavity is located in the middle of the base in the width direction of the base.

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