Two-row mid-set type transportation roadway end hydraulic support

Abstract

The utility model discloses a two-row middle-mounted hydraulic support for the end of a transportation roadway, and relates to the technical field of coal mining. Comprising connecting rods, the two connecting rods are arranged front and back, front bases are hinged to the left side ends of the connecting rods, moving mechanisms are arranged on the left side ends of the front bases, first connecting mechanisms are hinged to the upper surfaces of the front bases, and a front top beam is hinged to the upper side ends of the first connecting mechanisms; a first hydraulic stand column is hinged between the lower surface of the front top beam and the upper surface of the front base. A front beam mechanism is arranged on the left side face of the front top beam. Electro-hydraulic control operation is adopted, the descending, moving and ascending speeds of the support are greatly improved, single column supporting is replaced, mechanization and automation of working face equipment are achieved, labor is reduced, efficiency is improved, the supporting area is large, the space of the position without stand columns is large, the roadway and side protection capacity is achieved, stable supporting of a roadway roof is achieved, and coal leakage of the roof is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a two-row middle-mounted transport lane end hydraulic support. Background Art

[0002] With the development of mining technology for fully mechanized mining faces and the acceleration of intelligent mine construction, the requirements for the unit output of fully mechanized mining faces are getting higher and higher. However, there is another important factor that affects and restricts the mining efficiency of fully mechanized mining faces, that is, the intersection of the tunnel and the working face. Although the end support occupies a small area, the surrounding rock is most affected by mining under the action of various supporting pressures, and the mine pressure is complex.

[0003] In the prior art, conventional transport tunnel end supports are mostly installed manually using single column supports. Supporting by single column supports is time-consuming and labor-intensive, has a low degree of mechanization, requires a large area, is not easy to move, and has the problem of coal leakage. Utility Model Content

[0004] The utility model provides a two-row middle-mounted transport lane end hydraulic support to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-row mid-mounted transport lane end hydraulic support, comprising a connecting rod, two connecting rods are arranged at the front and rear, the left end of each connecting rod is hingedly mounted with a front base, the left end of the front base is provided with a moving mechanism, the upper surface of the front base is hingedly mounted with a first connecting mechanism, the upper end of the first connecting mechanism is hingedly mounted with a front top beam, a first hydraulic column is hingedly mounted between the lower surface of the front top beam and the upper surface of the front base, a front beam mechanism is arranged on the left side of the front top beam, a rear base is hingedly mounted on the right end of the connecting rod, and the rear A second connecting mechanism is provided on the upper surface of the base near the right side, a shielding beam is hingedly installed on the upper end of the second connecting mechanism, a rear top beam is hingedly installed on the left end of the shielding beam, two second hydraulic columns are hingedly installed between the lower surface of the rear top beam and the upper surface of the rear base, the left end of the rear top beam is hingedly connected to the right end of the front top beam, and adjustment jacks are hingedly installed between the front and rear corresponding rear top beams and the front and rear corresponding front top beams, a first protective mechanism is provided on the front side surfaces of the front top beam and the rear top beam and the front side surfaces of the rear front top beam and the rear top beam, and a second protective mechanism is provided on the rear side surfaces of the rear front top beam and the rear top beam.

[0006] Furthermore, the moving mechanism includes a push jack and a connecting seat, and the push jack and the connecting seat are hingedly installed on the left end of the front base in sequence.

[0007] Furthermore, the first connecting mechanism includes a lower swing rod and an upper swing rod, the lower end of the lower swing rod is hingedly connected to the upper surface of the front base, the upper end of the lower swing rod is hingedly installed with an upper swing rod, and the upper end of the upper swing rod is hingedly connected to the lower surface of the front top beam.

[0008] Furthermore, the front beam mechanism includes a front beam plate and a front beam jack, the right end of the front beam plate is hinged to the left end of the front top beam near the upper position, and the middle part of the lower surface of the front beam plate is hinged to the left end of the front top beam near the lower position through the front beam jack.

[0009] Furthermore, the second connecting mechanism includes a front connecting rod and a rear connecting rod, which are arranged on the left and right, and the upper and lower ends of the front connecting rod and the rear connecting rod are respectively hingedly connected to the upper surface of the rear base and the lower surface of the shielding beam.

[0010] Furthermore, the first protective mechanism includes a flap and a lifting jack, the flap is hingedly connected near the upper side of the front top beam and the end and the side of the front top beam, and the lower surface of the flap is hingedly connected to the side of the front top beam through the lifting jack and the lower side.

[0011] Furthermore, the second protection mechanism includes a side push jack and a side guard plate. The side push jack is hingedly installed on the rear side surface of the rear front top beam and the rear top beam. The side guard plate is installed on the rear side surface of the output shaft of the side push jack.

[0012] Furthermore, an electro-hydraulic controlled valve group is provided on the front side of the front base.

[0013] Compared with the prior art, the utility model provides a two-row mid-mounted transport lane end hydraulic support, which has the following beneficial effects:

[0014] The two-row center-mounted hydraulic support at the end of the transport lane is adjusted and controlled by an electro-hydraulic control valve group to achieve electro-hydraulic control, which greatly improves the lowering, moving and raising speed of the support, replaces the single column support, realizes the mechanization and automation of the working face equipment, reduces manpower and increases efficiency. The end support structure is a two-row center-mounted form, and the frame is moved by steps. The left and right frames rely on each other through the frame adjustment jack on the top beam to ensure the stability of the support structure. The middle of the two frames is the transport channel, and side panels are arranged on the inner and outer sides of the top beam of the support. It has a large support area, a large space without columns, and the ability to protect lanes and sides, thereby achieving stability support for the lane roof and reducing coal leakage from the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a right view of the utility model;

[0017] Figure 3 It is a top view of the utility model.

[0018] In the figure: 1. connecting rod; 2. front base; 3. moving mechanism; 301. pushing jack; 302. connecting seat; 4. first connecting mechanism; 401. lower swing rod; 402. upper swing rod; 5. front top beam; 6. first hydraulic column; 7. front beam mechanism; 701. front beam plate; 702. front beam jack; 8. rear base; 9. second connecting mechanism; 901. front connecting rod; 902. rear connecting rod; 10. shielding beam; 11. rear top beam; 12. second hydraulic column; 13. adjusting frame jack; 14. first protection mechanism; 141. flap; 142. lifting jack; 15. second protection mechanism; 151. side push jack; 152. side guard plate; 16. electro-hydraulic control valve group. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 3The utility model discloses a two-row mid-mounted transport lane end hydraulic support, comprising a connecting rod 1, two connecting rods 1 are arranged in front and behind, a front base 2 is hingedly installed on the left end of the connecting rod 1, a moving mechanism 3 is arranged on the left end of the front base 2, a first connecting mechanism 4 is hingedly installed on the upper surface of the front base 2, a front top beam 5 is hingedly installed on the upper side end of the first connecting mechanism 4, a first hydraulic column 6 is hingedly installed between the lower surface of the front top beam 5 and the upper surface of the front base 2, a front beam mechanism 7 is arranged on the left side of the front top beam 5, a rear base 8 is hingedly installed on the right end of the connecting rod 1, a second connecting mechanism 9 is arranged on the upper surface of the rear base 8 near the right side, A shielding beam 10 is hingedly installed at the upper end of the second connecting mechanism 9, a rear top beam 11 is hingedly installed at the left end of the shielding beam 10, two second hydraulic columns 12 are hingedly installed between the lower surface of the rear top beam 11 and the upper surface of the rear base 8, the left end of the rear top beam 11 is hingedly connected to the right end of the front top beam 5, and a frame adjustment jack 13 is hingedly installed between the front and rear corresponding rear top beams 11 and the front and rear corresponding front top beams 5, the front side surfaces of the front top beam 5 and the rear top beam 11 and the rear side front top beam 5 and the rear top beam 11 are both provided with a first protective mechanism 14, and the rear side surfaces of the rear front top beam 5 and the rear top beam 11 are provided with a second protective mechanism 15, and a transfer machine is provided between the front and rear front bases 2 and the rear base 8.

[0021] Specifically, the moving mechanism 3 includes a push jack 301 and a connecting seat 302 , and the push jack 301 and the connecting seat 302 are hingedly installed on the left end of the front base 2 in sequence.

[0022] In this embodiment, the end bracket of the transport lane and the transfer machine serve as fulcrums for each other, and the movement of the end bracket is achieved through the connecting seat 302 and the push jack 301.

[0023] Specifically, the first connecting mechanism 4 includes a lower swing rod 401 and an upper swing rod 402, the lower end of the lower swing rod 401 is hingedly connected to the upper surface of the front base 2, the upper end of the lower swing rod 401 is hingedly installed with the upper swing rod 402, and the upper end of the upper swing rod 402 is hingedly connected to the lower surface of the front top beam 5.

[0024] In this embodiment, the lower swing rod 401 and the upper swing rod 402 are hinged to realize a structure in which the front top beam 5 and the front base 2 are hinged, forming a swing rod mechanism that has a relatively stable effect on the hydraulic support.

[0025] Specifically, the front beam mechanism 7 includes a front beam plate 701 and a front beam jack 702, the right end of the front beam plate 701 is hinged to the left end of the front top beam 5 near the upper side, and the middle part of the lower surface of the front beam plate 701 is hinged to the left end of the front top beam 5 near the lower side through the front beam jack 702.

[0026] In this embodiment, the front beam jack 702 pushes the front beam plate 701 to rotate along the front top beam 5, and the front beam plate 701 swings up and down to jointly support the top plate.

[0027] Specifically, the second connecting mechanism 9 includes a front connecting rod 901 and a rear connecting rod 902, which are arranged on the left and right, and the upper and lower ends of the front connecting rod 901 and the rear connecting rod 902 are hingedly connected to the upper surface of the rear base 8 and the lower surface of the shielding beam 10 respectively.

[0028] In this embodiment, the front connecting rod 901 and the rear connecting rod 902 realize the hinge connection between the rear base 8 and the shielding beam 10, forming a four-bar linkage that stabilizes the hydraulic support.

[0029] Specifically, the first protective mechanism 14 includes a flap 141 and a lifting jack 142. The flap 141 is hingedly connected between the end near the front top beam 5 and the side of the front top beam 5 near the upper side. The lower surface of the flap 141 is hingedly connected to the side of the front top beam 5 near the lower side through the lifting jack 142.

[0030] In this embodiment, the lifting jack 142 drives the flap 141 to rotate, so that the front side flaps 141 of the front top beam 5 and the rear top beam 11 and the front side flaps 141 of the rear front top beam 5 and the rear top beam 11 work together to support the top plate.

[0031] Specifically, the second protection mechanism 15 includes a side push jack 151 and a side guard plate 152. The side push jack 151 is hingedly installed on the rear side of the rear front top beam 5 and the rear top beam 11. The side guard plate 152 is installed on the rear side of the output shaft of the side push jack 151.

[0032] In this embodiment, the side push jack 151 drives the side guard plate 152 to extend, so that the side guard plate 152 contacts the tunnel, thereby achieving the function of supporting the roof.

[0033] Specifically, an electro-hydraulic control valve group 16 is disposed on the front side of the front base 2 .

[0034] In this embodiment, the electro-hydraulic control valve group 16 is used to adjust and control each driving component in the bracket.

[0035] When in use, the front and rear top beams 5 and rear top beams 11 are driven to move forward and backward by the adjustment jack 13, so as to adjust the distance between the front base 2, the rear base 8, the front top beam 5 and the rear top beam 11. A transfer machine is arranged between the front and rear bases 2 and the rear base 8, and then the front top beam 5 is driven to move upward by the first hydraulic column 6, and the rear top beam 11 is driven to move upward by the two second hydraulic columns 12 on the rear side. During the movement, the lower swing rod 401 and the upper swing rod 402 in the first connecting mechanism 4 are hinged to realize the structure of the front top beam 5 and the front base 2 being hinged, forming a swing rod mechanism that has a relatively stable effect on the hydraulic support, and then the front connecting rod 901 and the rear connecting rod 902 in the second connecting mechanism 9 are hinged between the rear base 8 and the shielding beam 10, forming a four-bar mechanism that has a stable effect on the hydraulic support, and then the first anti-lock brake is used to lock the hydraulic support. The lifting jack 142 in the protection mechanism 14 drives the flap 141 to rotate, so that the front top beam 5 and the rear top beam 11 on the front side and the front side flap 141 of the rear front top beam 5 and the rear top beam 11 on the rear side work together to support the top plate, and then the side push jack 151 in the second protection mechanism 15 drives the side guard plate 152 to extend, so that the side guard plate 152 conflicts with the tunnel, and the function of supporting the top plate is realized. The various driving structures are adjusted and controlled by the electro-hydraulic control valve group 16 to achieve electro-hydraulic control. The speed of lowering, moving and raising of the bracket is greatly improved, replacing the single column support, realizing the mechanization and automation of the working face equipment, reducing manpower and increasing efficiency. The end bracket structure is a two-row mid-mounted form, which can be moved by stepping, and the middle of the two frames is a transportation channel. It has a large support area, a large space without columns, and the ability to protect tunnels and gangways, thereby achieving stability support for the tunnel roof and reducing coal leakage from the roof.

[0036] To sum up, the two rows of center-mounted transport lane end hydraulic supports adopt electro-hydraulic control to greatly improve the lowering, moving and raising speed of the supports, replacing single column supports, realizing the mechanization and automation of working face equipment, reducing manpower and increasing efficiency, and having a large support area, large space without columns, and the ability to protect lanes and sides, thereby achieving stable support for the lane roof and reducing coal leakage from the roof.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-row mid-mounted transport lane end hydraulic support, comprising a connecting rod (1), characterized in that: Two connecting rods (1) are provided at the front and rear ends. A front base (2) is hingedly mounted on the left end of each connecting rod (1). A moving mechanism (3) is provided on the left end of the front base (2). A first connecting mechanism (4) is hingedly mounted on the upper surface of the front base (2). A front top beam (5) is hingedly mounted on the upper end of the first connecting mechanism (4). A first hydraulic column (6) is hingedly mounted between the lower surface of the front top beam (5) and the upper surface of the front base (2). A front beam mechanism (7) is provided on the left side of the front top beam (5). A rear base (8) is hingedly mounted on the right end of the connecting rod (1). A second connecting mechanism (9) is provided on the upper surface of the rear base (8) near the right side. The second connecting mechanism (9) ) is hingedly mounted on the upper end of the rear base (8), a rear top beam (11) is hingedly mounted on the left end of the shielding beam (10), two second hydraulic columns (12) are hingedly mounted between the lower surface of the rear top beam (11) and the upper surface of the rear base (8), the left end of the rear top beam (11) is hingedly connected to the right end of the front top beam (5), and a frame adjustment jack (13) is hingedly mounted between the front and rear corresponding rear top beams (11) and the front and rear corresponding front top beams (5), the front side surfaces of the front top beam (5) and the rear top beam (11) and the rear side front top beam (5) and the rear top beam (11) are both provided with a first protective mechanism (14), and the rear side surfaces of the rear front top beam (5) and the rear top beam (11) are provided with a second protective mechanism (15).

2. A two-row mid-mounted transport lane end hydraulic support according to claim 1, characterized in that: The moving mechanism (3) comprises a push jack (301) and a connecting seat (302), and the push jack (301) and the connecting seat (302) are hingedly mounted in sequence on the left end of the front base (2).

3. The two-row mid-mounted transport lane end hydraulic support according to claim 1 is characterized in that: The first connecting mechanism (4) comprises a lower swing rod (401) and an upper swing rod (402), the lower end of the lower swing rod (401) being hingedly connected to the upper surface of the front base (2), the upper end of the lower swing rod (401) being hingedly mounted with the upper swing rod (402), and the upper end of the upper swing rod (402) being hingedly connected to the lower surface of the front top beam (5).

4. The two-row mid-mounted transport lane end hydraulic support according to claim 1 is characterized in that: The front beam mechanism (7) comprises a front beam plate (701) and a front beam jack (702); the right end of the front beam plate (701) is hinged to the left end of the front top beam (5) near the upper side; and the middle part of the lower surface of the front beam plate (701) is hinged to the left end of the front top beam (5) near the lower side through the front beam jack (702).

5. The two-row mid-mounted transport lane end hydraulic support according to claim 1 is characterized in that: The second connecting mechanism (9) comprises a front connecting rod (901) and a rear connecting rod (902), wherein the front connecting rod (901) and the rear connecting rod (902) are arranged on the left and right, and the upper and lower ends of the front connecting rod (901) and the rear connecting rod (902) are respectively hingedly connected to the upper surface of the rear base (8) and the lower surface of the shielding beam (10).

6. The two-row mid-mounted transport lane end hydraulic support according to claim 1 is characterized in that: The first protection mechanism (14) comprises a flap (141) and a lifting jack (142); the flap (141) is hingedly connected between the end and the side of the front top beam (5) near the upper side; and the lower surface of the flap (141) is hingedly connected to the side of the front top beam (5) near the lower side through the lifting jack (142).

7. The two-row mid-mounted transport lane end hydraulic support according to claim 1 is characterized in that: The second protection mechanism (15) comprises a side push jack (151) and a side guard plate (152); the side push jack (151) is hingedly mounted on the rear side surfaces of the rear front top beam (5) and the rear top beam (11); and the side guard plate (152) is mounted on the rear side surface of the output shaft of the side push jack (151).

8. The two-row mid-mounted transport lane end hydraulic support according to claim 1 is characterized in that: An electro-hydraulic control valve group (16) is provided on the front side of the front base (2).

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