Advanced hydraulic support

Abstract

The utility model discloses an advanced hydraulic support which comprises a top beam and a base, the top beam comprises a front top beam, and the base comprises a front base. A connecting rod mechanism is arranged on the base and comprises two sets of four-connecting-rod mechanisms arranged in parallel, the top end of each set of four-connecting-rod mechanism is hinged to the front top beam, and the bottom end of each set of four-connecting-rod mechanism is hinged to the front base; a front stand column and a rear stand column are arranged on the base and arranged between the two sets of four-connecting-rod mechanisms, the top ends of the front stand column and the rear stand column are connected with the front top beam, and the bottom ends of the front stand column and the rear stand column are connected with the front base. Two groups of four-connecting-rod mechanisms are arranged, so that the stability of the structure is enhanced; the front stand column and the rear stand column are arranged between the two sets of double-connecting-rod mechanisms, the distance between the front stand column and the rear stand column is shortened, and the swing range of the front stand column and the rear stand column is reserved. Meanwhile, the size of the four-connecting-rod mechanism is reduced, and the four-connecting-rod mechanism is more suitable for roadways with narrow size and higher stability requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of advanced hydraulic supports, in particular to an advanced hydraulic support. Background Art

[0002] Hydraulic support is a structure used to control the mine pressure of coal mining working face. The mine pressure of the mining face acts on the hydraulic support in the form of external load. In the mechanical system of interaction between the hydraulic support and the surrounding rock of the mining face, if the combined force of each support of the hydraulic support and the combined force of the external load acting on the hydraulic support by the roof are exactly in the same straight line, then the hydraulic support is very suitable for the surrounding rock of the mining face.

[0003] In recent years, the comprehensive mining support of coal mines has developed rapidly, and the requirements for coal mine working face tunnel support have become increasingly higher. The traditional hydraulic support advance support cannot adapt to the more complex tunnel conditions. Utility Model Content

[0004] In view of the above-mentioned deficiencies, the technical problem to be solved by the utility model is to provide an advanced hydraulic support which can realize advanced support of the tunnel under complex tunnel geological conditions.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] An advanced hydraulic support comprises a top beam and a base, wherein the top beam comprises a front top beam, and the base comprises a front base, and the front base and the front top beam are arranged opposite to each other up and down; connecting rod mechanisms are respectively arranged on both sides of the base, and the connecting rod mechanisms on each side comprise two groups of four-bar mechanisms arranged in parallel, and the top end of each group of the four-bar mechanisms is hingedly connected to the front top beam, and the bottom end of each group of the four-bar mechanisms is hingedly connected to the front base; front columns and rear columns are respectively arranged on both sides of the base, and the front columns and the rear columns on each side are arranged between the two groups of the four-bar mechanisms, and the top ends of the front columns and the rear columns are respectively connected to the front top beam, and the bottom ends of the front columns and the rear columns are respectively connected to the front base.

[0007] Preferably, each group of the four-bar linkage mechanisms includes an inclined beam, one end of which is hingedly connected to the front top beam, and two main reinforcements are provided on the side of the inclined beam; the two groups of the four-bar linkage mechanisms are connected together by a connecting device, and the connecting device is respectively connected to the two main reinforcements on the side of the inclined beam.

[0008] Preferably, each group of the four-bar linkage includes a front link and a rear link, one end of the front link is hinged on the oblique beam, the other end of the front link is hingedly connected to the front base, one end of the rear link is hingedly connected to the other end of the oblique beam, and the other end of the rear link is hingedly connected to the front base.

[0009] Preferably, the top beam further includes a connecting beam and a rear top beam, the front end of the connecting beam is hingedly connected to the rear end of the front top beam, and the rear end of the connecting beam is hingedly connected to the front end of the rear top beam.

[0010] A preferred embodiment is that a front top beam side guard plate is provided on the outer side of the front top beam; a connecting beam side guard plate is provided on the outer side of the connecting beam; and / or; a fixed front baffle plate and a fixed rear baffle plate are provided on the outer side of the rear top beam, and the protective size of the fixed front baffle plate is smaller than the protective size of the fixed rear baffle plate.

[0011] A preferred embodiment is that the base also includes a rear base, a lifting beam sliding structure is provided on the rear base, the lifting beam sliding structure includes a lifting beam and a swing rod, the top end of the lifting beam is hingedly connected to the bottom end of the swing rod, and the top end of the swing rod is hingedly connected to the rear top beam.

[0012] Preferably, a fixed rock baffle plate is provided at the rear end of the rear top beam.

[0013] Preferably, a lower rock baffle is provided at the rear end of the rear base.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] The advanced hydraulic support of the utility model includes a top beam and a base, the top beam includes a front top beam, the base includes a front base, and the front base and the front top beam are arranged opposite to each other up and down; connecting rod mechanisms are respectively arranged on both sides of the base, and the connecting rod mechanisms on each side include two groups of four-link mechanisms arranged in parallel, the top end of each group of four-link mechanisms is hingedly connected to the front top beam, and the bottom end of each group of four-link mechanisms is hingedly connected to the front base; front columns and rear columns are respectively arranged on both sides of the base, and the front columns and rear columns on each side are arranged between the two groups of four-link mechanisms, and the top ends of the front columns and the rear columns are respectively connected to the front top beam, and the bottom ends of the front columns and the rear columns are respectively connected to the front base. The utility model has two sets of four-bar linkages arranged in parallel on each side of the base, thereby enhancing the stability of the structure; the front column and the rear column are both located between the two sets of four-bar linkages, thereby shortening the distance between the front column and the rear column and allowing for a swing range for the front column and the rear column; the stability of the hydraulic support structure is enhanced, and at the same time the size of the four-bar linkage is compressed, making it more suitable for lanes that are narrow in size and have higher requirements on stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 to Figure 4 It is a structural schematic diagram of the front hydraulic support in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the front top beam in the utility model;

[0018] Figure 6 It is a structural schematic diagram of the front top beam side guard plate of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the connecting beam in the utility model;

[0020] Figure 8 It is a structural schematic diagram of the side guard plate of the connecting beam in the utility model;

[0021] Fig. 9 It is a structural schematic diagram of the rear top beam in the utility model;

[0022] Fig.10 It is a structural schematic diagram of a fixed front baffle in the utility model;

[0023] Fig.11 It is a structural schematic diagram of a fixed rear baffle in the utility model;

[0024] Fig.12 It is a structural schematic diagram of the oblique beam in the utility model;

[0025] Fig.13 yes Figure 1 A local enlarged schematic diagram of the middle A;

[0026] In the figure: 1-top beam, 10-front top beam, 11-connecting beam, 12-rear top beam, 2-base, 20-front base, 21-rear connecting rod, 22-rear base, 3-four-bar linkage, 30-front connecting rod, 31-rear connecting rod, 32-inclined beam, 40-front top beam side guard plate, 41-connecting beam side guard plate, 42-fixed front baffle plate, 43-fixed rear baffle plate, 44-fixed baffle plate, 45-lower baffle plate, 5-front column, 6-rear column, 7-lifting beam sliding structure, 70-lifting beam, 71-swing rod. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0029] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Fig.13 As shown, an advanced hydraulic support includes a top beam 1 and a base 2, the top beam 1 includes a front top beam 10, the base 2 includes a front base 20, and the front base 20 and the front top beam 10 are arranged opposite to each other up and down; connecting rod mechanisms are respectively arranged on both sides of the base 2, and the connecting rod mechanisms on each side include two groups of four-bar connecting rod mechanisms 3 arranged in parallel and at intervals, the top end of each group of four-bar connecting rod mechanisms 3 is hingedly connected to the front top beam 10, and the bottom end of each group of four-bar connecting rod mechanisms 3 is hingedly connected to the front base 20; front columns 5 and rear columns 6 are respectively arranged on both sides of the base 2, the front columns 5 and rear columns 6 on each side are arranged between the two groups of four-bar connecting rod mechanisms 3, and the top ends of the front columns 5 and the rear columns 6 are respectively connected to the front top beam 10, and the bottom ends of the front columns 5 and the rear columns 6 are respectively connected to the front base 20.

[0031] Each set of four-bar linkages 3 includes an inclined beam 32, see Fig.12 One end of the inclined beam 32 is hingedly connected to the front top beam 10, and two main bars are arranged on the side of the inclined beam 32; the two groups of four-bar linkages 3 are connected together by a connecting device, and the connecting devices are respectively connected to the two main bars on the side of the inclined beam 32; this connection method allows the swing range of the front column 5 and the rear column 6; enhances the stability of the bracket structure, and at the same time compresses the size of the four-bar linkage 3, which is more suitable for lanes with narrow size and higher requirements on stability.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig.13As shown, the arrangement of two groups of four-bar linkages 3 in the utility model enhances the stability of the hydraulic support structure; and the front column 5 and the rear column 6 are both located between the two groups of double-bar linkages, shortening the distance between the front column 5 and the rear column 6. The utility model also changes the structure of the traditional inclined beam 32, adds two main bars on the side of the inclined beam 32, and uses the two main bars to achieve the connection of the two groups of four-bar linkages 3, specifically, the connecting device is connected to the two main bars. This structural method opens up the swing range of the front column 5 and the rear column 6, and enhances the stability of the hydraulic support structure. It can be seen that the advanced hydraulic support of the utility model can be used in lanes with higher requirements for stability.

[0033] In this embodiment, each set of four-bar linkage 3 includes a front link 30 and a rear link 31. One end of the front link 30 is hinged to the inclined beam 32, and the other end of the front link 30 is hinged to the front base 20. One end of the rear link 31 is hinged to the bottom end of the inclined beam 32, and the other end of the rear link 31 is hinged to the front base 20. For details, see Fig.12 .

[0034] like Figure 7 and Fig. 9 As shown, the top beam 1 also includes a connecting beam 11 and a rear top beam 12. The front end of the connecting beam 11 is hingedly connected to the rear end of the front top beam 10, and the rear end of the connecting beam 11 is hingedly connected to the front end of the rear top beam 12. The top beam 1 of this structure increases the top protection distance and area of ​​the hydraulic support, providing protection for the lower transport aircraft nose.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a front top beam side guard plate 40 is provided on the outer side of the front top beam 10, see Figure 6 The outer side of the connecting beam 11 is provided with a connecting beam side guard plate 41, see Figure 8 ; and / or; The outer side of the rear top beam 12 is provided with a fixed front baffle 42 and a fixed rear baffle 43, and the protective size of the fixed front baffle 42 is smaller than the protective size of the fixed rear baffle 43, see Fig.10 and Fig.11 It can be seen that the side guard plate is arranged on the outside of the top beam 1 of the utility model to protect the outer side of the lane and prevent the side from breaking.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the base 2 also includes a rear base 22, which is connected to the front base 20 through a rear connecting rod 21. A lifting beam 70 sliding structure 7 is provided on the rear base 22. The lifting beam 70 sliding structure 7 includes a lifting beam 70 and a swing rod 71. The top end of the lifting beam 70 is hingedly connected to the bottom end of the swing rod 71, and the top end of the swing rod 71 is hingedly connected to the rear top beam 12. This lifting beam 70 sliding structure 7 meets the front and rear motion trajectory requirements of the first two groups of four-bar linkage mechanisms 3, ensuring that no jamming occurs during the movement.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a fixed gangue baffle 44 is provided at the rear end of the rear top beam 12, and a lower gangue baffle 45 is provided at the rear end of the rear base 22. The fixed gangue baffle 44 and the lower gangue baffle 45 work together to prevent gangue in the rear goaf from collapsing and pouring into the tunnel.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications made within the spirit and principles of the present invention, improvements of an equivalent advanced hydraulic support, etc., should be included in the protection scope of the present invention.

Claims

1. An advanced hydraulic support, comprising a top beam and a base, characterized in that: The top beam includes a front top beam, the base includes a front base, and the front base and the front top beam are arranged opposite to each other in vertical direction; Linkage mechanisms are respectively arranged on both sides of the base, and the linkage mechanisms on each side include two groups of four-linkage mechanisms arranged in parallel, the top end of each group of four-linkage mechanisms is hingedly connected to the front top beam, and the bottom end of each group of four-linkage mechanisms is hingedly connected to the front base; A front column and a rear column are respectively arranged on both sides of the base, and the front column and the rear column on each side are arranged between two groups of the four-bar linkage mechanisms, and the top ends of the front columns and the top ends of the rear columns are respectively connected to the front top beams, and the bottom ends of the front columns and the bottom ends of the rear columns are respectively connected to the front base.

2. The advanced hydraulic support according to claim 1, characterized in that: Each group of the four-bar linkage mechanism comprises an inclined beam, one end of which is hingedly connected to the front top beam, and two main ribs are arranged on the side of the inclined beam; The two groups of four-bar linkages are connected together via a connecting device, and the connecting device is respectively connected to the two main reinforcements on the side surfaces of the inclined beam.

3. The advanced hydraulic support according to claim 2, characterized in that: Each set of the four-bar linkage includes a front link and a rear link, wherein one end of the front link is hinged on the oblique beam, and the other end of the front link is hingedly connected to the front base, one end of the rear link is hingedly connected to the other end of the oblique beam, and the other end of the rear link is hingedly connected to the front base.

4. The advanced hydraulic support according to claim 1, characterized in that: The top beam also includes a connecting beam and a rear top beam. The front end of the connecting beam is hingedly connected to the rear end of the front top beam, and the rear end of the connecting beam is hingedly connected to the front end of the rear top beam.

5. The advanced hydraulic support according to claim 4, characterized in that: The outer side of the front top beam is provided with a front top beam side guard plate; the outer side of the connecting beam is provided with a connecting beam side guard plate; and / or; the outer side of the rear top beam is provided with a fixed front baffle and a fixed rear baffle, and the protective size of the fixed front baffle is smaller than the protective size of the fixed rear baffle.

6. The advanced hydraulic support according to claim 4, characterized in that: The base also includes a rear base, on which a lifting beam sliding structure is arranged, and the lifting beam sliding structure includes a lifting beam and a swing rod, the top end of the lifting beam is hingedly connected to the bottom end of the swing rod, and the top end of the swing rod is hingedly connected to the rear top beam.

7. The advanced hydraulic support according to claim 4, characterized in that: A fixed rock baffle plate is arranged at the rear end of the rear top beam.

8. The advanced hydraulic support according to claim 6, characterized in that: A lower rock baffle is arranged at the rear end of the rear base.

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