Shield type hydraulic support

Abstract

The utility model belongs to the technical field of mining supports and provides a shield type hydraulic support which comprises a base, a front connecting rod and a rear connecting rod are hinged to one side of the base, a shield beam is hinged to the ends, away from the base, of the front connecting rod and the rear connecting rod, a top beam is hinged to the shield beam, and a stand column is hinged between the bottom of the top beam and the base. A balance jack is arranged between the top beam and the shield beam; a top beam right side protection plate and a top beam left side protection plate are arranged on the two sides of the top beam correspondingly, and a first side pushing assembly is arranged between the top beam left side protection plate and the top beam. A shield beam right side protection plate and a shield beam left side protection plate are arranged on the two sides of the shield beam correspondingly, and a second side pushing assembly is arranged between the shield beam left side protection plate and the shield beam. According to the utility model, the side protection plates between the two adjacent hydraulic supports can be quickly and tightly attached, the construction difficulty is reduced, and the protection capability of the hydraulic supports is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining supports, in particular to a shielding type hydraulic support. Background Art

[0002] Hydraulic supports are essential equipment for the coal mining industry. Their main function is to support the surrounding rock in the coal mine and ensure the safety and efficiency of the mining process. In most parts of China, due to the unique geological structure of the coal seams, the working face layout of traditional hydraulic supports is a two-wing series layout. Several hydraulic supports are arranged in parallel along the length of the tunnel. Through the fit between the hydraulic supports, a certain length of safety area is formed under the supports, making coal mining safe and efficient.

[0003] However, due to the narrow space in the tunnel, it is difficult to deploy the hydraulic supports to the predetermined position and make two adjacent hydraulic supports fit together to form a tight protective space, which makes the preliminary work of the coal mining process more cumbersome and reduces the overall coal mining efficiency. Utility Model Content

[0004] The utility model aims to provide a shielding hydraulic support to solve the above problems, so as to quickly make the side guard plates between two adjacent hydraulic supports closely fit, reduce the construction difficulty and improve the protection ability of the hydraulic support.

[0005] To achieve the above purpose, the utility model provides the following solution: a shielding hydraulic support, comprising:

[0006] A base, one side of the base is hinged with a front link and a rear link, one end of the front link and the rear link away from the base is hinged with a shielding beam, one end of the shielding beam away from the front link and the rear link is hinged with one end of a top beam, a column is hinged between the bottom of the top beam and the base, and a balancing jack is provided between the top beam and the shielding beam;

[0007] A right side guard plate of the top beam and a left side guard plate of the top beam are respectively arranged on both sides of the top beam, and a first side pushing assembly is arranged between the left side guard plate of the top beam and the top beam, and the first side pushing assembly is used to change the distance between the left side guard plate of the top beam and the top beam;

[0008] A right side guard plate and a left side guard plate of the shield beam are respectively arranged on both sides of the shield beam, and a second side pushing assembly is arranged between the left side guard plate of the shield beam and the shield beam, and the second side pushing assembly is used to change the distance between the left side guard plate of the shield beam and the shield beam.

[0009] Preferably, the right side guard plate of the top beam and the right side guard plate of the protective beam are fixedly connected to the top beam and the protective beam respectively, and the left side guard plate of the top beam and the left side guard plate of the protective beam are slidably connected to the top beam and the protective beam respectively.

[0010] Preferably, the first side thrust assembly includes a plurality of first side thrust jacks hinged in the top beam, the extension and retraction directions of the first side thrust jacks are perpendicular to the length direction of the top beam, and the piston ends of the plurality of first side thrust jacks are hinged to the inner wall of the left side guard plate of the top beam.

[0011] Preferably, the second side push assembly includes a second side push jack hinged in the shield beam, the extension and retraction direction of the second side push jack is perpendicular to the length direction of the shield beam, and the piston ends of several second side push jacks are hinged to the inner wall of the left side guard plate of the shield beam.

[0012] Preferably, a guard rail is hingedly connected to one end of the top beam away from the shield beam, and a guard rail jack is hingedly connected between the guard rail and the bottom of the top beam.

[0013] Preferably, a push rod is slidably connected inside the base along the length direction of the base, one end of the push rod extends out of the base, and a push jack is hinged between the other end of the push rod and the base, and the push jack is used to move the push rod relative to the base.

[0014] Preferably, an outer baffle is fixedly connected to the outer side of the rear connecting rod.

[0015] Compared with the prior art, the utility model has the following advantages and technical effects: the first side-pushing assembly is used to push the left side guard plate of the top beam to move along the width direction of the top beam, so that when the supports are set up in rows in the coal mining tunnel, the left side guard plate of the top beam and the right side guard plate of the top beam between two adjacent supports are tightly fitted; the second side-pushing assembly is used to push the left side guard plate of the shielding beam to move along the width direction of the shielding beam, so that when the supports are set up in rows, the right side guard plate of the shielding beam and the left side guard plate of the shielding beam between two adjacent supports are tightly fitted. On the whole, the utility model has high bearing capacity and reliability, and by moving the positions of the relevant side guard plates on the top beam and the shielding beam, the side guard plates between two adjacent hydraulic supports can be quickly made to fit tightly to form a tight protective space below, which reduces the construction difficulty of setting up hydraulic supports in rows in the tunnel and improves the protection ability of the hydraulic supports to the space below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the hydraulic support of the utility model;

[0018] Figure 2 It is a cross-sectional view of the hydraulic support of the utility model;

[0019] Figure 3 It is a schematic diagram of the first side thrust assembly of the utility model;

[0020] Figure 4 is a schematic diagram of a second side thrust assembly of the utility model;

[0021] Among them, 1. base; 2. push rod; 3. push rod connector; 4. front connecting rod; 5. outer baffle; 6. left side guard plate of top beam; 7. top beam; 8. left side guard plate of protective beam; 9. side guard; 10. column; 11. right side guard plate of top beam; 12. right side guard plate of protective beam; 13. balancing jack; 14. protective beam; 15. rear connecting rod; 16. push jack; 17. first side push jack; 18. side guard jack; 19. second side push jack. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Embodiment 1:

[0025] Reference Figure 1-Figure 4 The utility model provides a shielding hydraulic support, comprising:

[0026] A base 1, one side of the base 1 is hinged with a front link 4 and a rear link 15, one end of the front link 4 and the rear link 15 away from the base 1 is hinged with a shielding beam 14, one end of the shielding beam 14 away from the front link 4 and the rear link 15 is hinged with one end of the top beam 7, a column 10 is hinged between the bottom of the top beam 7 and the base 1, and a balancing jack 13 is provided between the top beam 7 and the shielding beam 14;

[0027] A top beam right guard plate 11 and a top beam left guard plate 6 are respectively arranged on both sides of the top beam 7, and a first side push assembly is arranged between the top beam left guard plate 6 and the top beam 7, and the first side push assembly is used to change the distance between the top beam left guard plate 6 and the top beam 7;

[0028] A right side guard plate 12 and a left side guard plate 8 are respectively arranged on both sides of the shielding beam 14 . A second side pushing assembly is arranged between the left side guard plate 8 and the shielding beam 14 . The second side pushing assembly is used to change the distance between the left side guard plate 8 and the shielding beam 14 .

[0029] The base 1, the front connecting rod 4, the rear connecting rod 15, the shielding beam 14, the top beam 7, the balancing jack 13 and the column 10 together constitute a parallel support mechanism. By controlling the length of the column 10, the height of the top beam 7 can be changed. At the same time, by controlling the length of the balancing jack 13, the degree of freedom of the entire hydraulic support can be limited, so that the hydraulic support plays a supporting and stabilizing role; the top beam right side guard plate 11, the top beam left side guard plate 6, the shielding beam right side guard plate 12 and the shielding beam left side guard plate 8 are used to connect the top beam 7 and the lower part of the shielding beam 14. The space is further sealed and protected; the first side-pushing assembly is used to push the left side guard plate 6 of the top beam to move along the width direction of the top beam 7, so that the left side guard plate 6 of the top beam and the right side guard plate 11 of the top beam between two adjacent supports are tightly fitted when the supports are set up in rows in the coal mining tunnel; the second side-pushing assembly is used to push the left side guard plate 8 of the shielding beam to move along the width direction of the shielding beam 14, so that the right side guard plate 12 of the shielding beam and the left side guard plate 8 of the shielding beam between two adjacent supports are tightly fitted when the supports are set up in rows. On the whole, the utility model has high bearing capacity and reliability, and by moving the positions of the relevant side guard plates on the top beam and the shielding beam, the side guard plates between two adjacent hydraulic supports can be quickly made to fit tightly to form a tight protective space below, which reduces the construction difficulty of setting up hydraulic supports in rows in the tunnel and improves the protection ability of the hydraulic supports to the space below.

[0030] To further optimize the solution, the right side guard plate 11 of the top beam and the right side guard plate 12 of the shielding beam are fixedly connected to the top beam 7 and the shielding beam 14 respectively, and the left side guard plate 6 of the top beam and the left side guard plate 8 of the shielding beam are slidably connected to the top beam 7 and the shielding beam 14 respectively.

[0031] According to a further optimization scheme, the first side thrust assembly includes a plurality of first side thrust jacks 17 hinged in the top beam 7, the extension and retraction directions of the first side thrust jacks 17 are perpendicular to the length direction of the top beam 7, and the piston ends of the plurality of first side thrust jacks 17 are hinged to the inner wall of the left side guard plate 6 of the top beam.

[0032] like Figure 1 and Figure 3 As shown, two sets of first side push jacks 17 are arranged in parallel in the top beam 7. By controlling the extension length of the piston end of the first side push jack 17, the purpose of pushing the left side guard plate 6 of the top beam to move relative to the top beam 7 can be achieved.

[0033] By setting up two groups of first side push jacks 17, and hingedly connecting the two ends of the first side push jacks 17 to the top beam 7 and the left side guard plate 6 of the top beam respectively, and controlling the difference in the extended lengths of the two groups of first side push jacks 17, a reasonable range of deviation can be ensured between the left side guard plate 6 of the top beam and the top beam 7. When laying out the hydraulic support, by controlling the extended length of the left side guard plate 6 of the top beam and the angle between it and the top beam 7, when there is an angle between two adjacent supports, there is no need to continue moving the entire support, and the left side guard plate 6 of the top beam can be fitted with the adjacent right side guard plate 11 of the top beam, thereby reducing the difficulty of construction.

[0034] A further optimized solution is that the second side thrust assembly includes a second side thrust jack 19 hinged in the shielding beam 14, the extension and retraction direction of the second side thrust jack 19 is perpendicular to the length direction of the shielding beam 14, and the piston ends of several second side thrust jacks 19 are hinged to the inner wall of the left side guard plate 8 of the shielding beam.

[0035] like Figure 1 and Figure 4 As shown, two groups of second side push jacks 19 are arranged in the shielding beam 14. Similar to the principle of the first side push jacks 17, both ends of the two groups of second side push jacks 19 are also hinged. By controlling the difference in the extension length of the two groups of second side push jacks 19, the angle between the left side guard plate 8 of the shielding beam and the shielding beam 14 can be controlled, so that when the shielding beams between two adjacent brackets have an angle deviation when arranging the brackets, the left side guard plate 8 of the shielding beam can also be fitted with the right side guard plate 12 of the adjacent shielding beam.

[0036] To further optimize the solution, a guard rail 9 is hingedly connected to one end of the top beam 7 away from the shield beam 14 , and a guard rail jack 18 is hingedly connected between the guard rail 9 and the bottom of the top beam 7 .

[0037] like Figure 2 As shown, by controlling the extension length of the guard jack 18, the angle between the guard 9 and the top beam 7 can be changed.

[0038] A further optimized solution is that a push rod 2 is slidably connected to the base 1 along the length direction of the base 1, one end of the push rod 2 extends out of the base 1, and a push jack 16 is hinged between the other end of the push rod 2 and the base 1, and the push jack 16 is used to move the push rod 2 relative to the base 1.

[0039] like Figure 2 As shown, the extended end of the push rod 2 is hinged with a push rod connector 3. The construction personnel control the extension and retraction of the push jack 16 to change the distance of the push rod 2 extending from the base 1. The push rod connector 3 is fixed, and the extension and retraction length of the push jack 16 is changed to realize the movement of the entire hydraulic support.

[0040] According to a further optimized solution, an outer baffle plate 5 is fixedly connected to the outer side of the rear connecting rod 15 .

[0041] like Figure 1 and Figure 2 As shown, two groups of rear connecting rods 15 and two groups of front connecting rods 4 are hinged side by side on the base 1. The outer sides of the two groups of rear connecting rods 15, that is, the sides away from each other, are respectively fixedly connected to the outer baffles 5. The outer baffles 5 are arranged on the inner side of the left side guard plate 8 of the shield beam or the right side guard plate 12 of the shield beam.

[0042] To further optimize the scheme, a control system and a hydraulic pump station are also provided, and the hydraulic pump station is used to provide hydraulic oil required for the column 10, the balancing jack 13, the push jack 16, the side guard jack 18, the first side push jack 17 and the second side push jack 19. The control system can facilitate the construction personnel to control the working status of the above jacks.

[0043] Embodiment 2:

[0044] The only difference between this embodiment and the first embodiment is that pressure sensors (not shown in the figure) are respectively provided between the first side push jack 17 and the top beam 7 and between the second side push jack 19 and the shielding beam 14 .

[0045] The pressure sensor can monitor the pressure between the left guard plate 6 of the top beam and the right guard plate 11 of the top beam, and the left guard plate 8 of the shield beam and the right guard plate 12 of the shield beam between two adjacent hydraulic supports, to ensure that the guard plates are in a tight fit. At the same time, when the ground under a certain support moves, causing the relative position between the supports to begin to change, the fit pressure between the side guard plates will change, which can be immediately monitored by the pressure sensor, so that personnel can quickly remedy the problem at the early stage.

[0046] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A shielding hydraulic support, characterized in that: include: A base (1), one side of the base (1) is hinged with a front link (4) and a rear link (15), one end of the front link (4) and the rear link (15) away from the base (1) is hinged with a shielding beam (14), one end of the shielding beam (14) away from the front link (4) and the rear link (15) is hinged with one end of a top beam (7), a column (10) is hinged between the bottom of the top beam (7) and the base (1), and a balancing jack (13) is provided between the top beam (7) and the shielding beam (14); A top beam right side guard plate (11) and a top beam left side guard plate (6) are respectively arranged on both sides of the top beam (7), and a first side push assembly is arranged between the top beam left side guard plate (6) and the top beam (7), and the first side push assembly is used to change the distance between the top beam left side guard plate (6) and the top beam (7); A right side guard plate (12) of the shield beam and a left side guard plate (8) of the shield beam are respectively arranged on both sides of the shield beam (14); a second side thrust assembly is arranged between the left side guard plate (8) of the shield beam and the shield beam (14); the second side thrust assembly is used to change the distance between the left side guard plate (8) of the shield beam and the shield beam (14).

2. The shielding hydraulic support according to claim 1, characterized in that: The right side guard plate (11) of the top beam and the right side guard plate (12) of the shield beam are fixedly connected to the top beam (7) and the shield beam (14) respectively, and the left side guard plate (6) of the top beam and the left side guard plate (8) of the shield beam are slidably connected to the top beam (7) and the shield beam (14) respectively.

3. The shielding hydraulic support according to claim 2 is characterized in that: The first side thrust assembly comprises a plurality of first side thrust jacks (17) hinged in the top beam (7), the extension and retraction directions of the first side thrust jacks (17) are perpendicular to the length direction of the top beam (7), and the piston ends of the plurality of first side thrust jacks (17) are hinged to the inner wall of the left side guard plate (6) of the top beam.

4. The shielding hydraulic support according to claim 2, characterized in that: The second side thrust assembly comprises a second side thrust jack (19) hinged in the shielding beam (14), the extension and retraction direction of the second side thrust jack (19) is perpendicular to the length direction of the shielding beam (14), and the piston ends of a plurality of the second side thrust jacks (19) are hinged to the inner wall of the left side guard plate (8) of the shielding beam.

5. The shielding hydraulic support according to claim 1, characterized in that: A guard rail (9) is hingedly connected to one end of the top beam (7) away from the shield beam (14), and a guard rail jack (18) is hingedly connected between the guard rail (9) and the bottom of the top beam (7).

6. The shielding hydraulic support according to claim 1, characterized in that: A push rod (2) is slidably connected inside the base (1) along the length direction of the base (1); one end of the push rod (2) extends out of the base (1); a push jack (16) is hinged between the other end of the push rod (2) and the base (1); the push jack (16) is used to move the push rod (2) relative to the base (1).

7. The shielding hydraulic support according to claim 1, characterized in that: The outer side of the rear connecting rod (15) is fixedly connected with an outer baffle plate (5).

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