Staggered push-pull connecting device for top-cutting hydraulic support

Abstract

The utility model discloses a staggered push-pull connecting device for a top cutting hydraulic support, and belongs to the technical field of coal mine equipment. According to the push-pull connecting device, staggered push-pull of the top cutting hydraulic support and the scraper conveyor can be achieved, and self-moving of the top cutting hydraulic support is achieved. According to the technical scheme, the device comprises a push-pull seat and a pushing jack; in the push-pull seat, a main plate is a rectangular flat plate, two opposite surfaces on the main plate are a first side surface and a second side surface respectively, a plurality of vertically arranged connecting plates are arranged in a row and are fixed on the first side surface of the main plate, connecting holes are formed in all the connecting plates, a first horizontal plate and a second horizontal plate are fixed on the second side surface of the main plate, and the first horizontal plate and the second horizontal plate are fixed on the first side surface of the main plate. The first horizontal plate is located over the second horizontal plate, a plurality of first pin holes which correspond to each other up and down are formed in the first horizontal plate and the second horizontal plate, and the three first pin shafts are inserted into the adjacent first pin holes; and one end of the pushing jack is connected to the two adjacent connecting plates. The self-moving device is used for self-moving of the top-cutting hydraulic support.

Description

Technical Field

[0001] The utility model discloses a dislocation push-pull connection device for a top-cut hydraulic support, belonging to the technical field of coal mine equipment. Background Art

[0002] At present, the tail-end cutting support of the large-scale fully mechanized mining working face adopts the method of driving single columns. Specifically, when the roof is intact and the end and tail frames are less than 2m away from the coal wall, single columns with a column spacing of 1m are used for support. If the end and tail frames are greater than or equal to 2m away from the coal wall, the line segment from the cutting top line to the coal wall of the working face must be supported more densely. According to the width, no less than two rows of columns are driven, with a row spacing of 1m. One row is single columns with a column spacing of 1m, and the rest are evenly supported, and a pedestrian passage with a width of not less than 0.8m is guaranteed. When cracks or broken roof appear, under the premise of the above support, π-shaped steel beams (or 5m wooden beams) must be erected to maintain the roof. Since the weight of the single cut-top columns is relatively heavy, each support and withdrawal operation requires the first ten columns to be supported, and then the original ten columns to be withdrawn for replacement. The support and withdrawal require manual lifting, which puts a lot of labor intensity on the employees. It cannot meet the needs of intelligent working surfaces and cannot meet the needs of reducing manpower and improving efficiency. Therefore, it is necessary to change the tail support to a self-moving integral support, adopt a cut-top hydraulic support, cancel the single column support method, and change the end-tail support process. However, after changing to a cut-top hydraulic support, the self-movement method is also a problem. If the front advance support is used for self-movement, a large chain or a jack of more than 10 meters needs to be installed between them, which is very difficult to operate in practice. If you want to connect with the scraper conveyor to cooperate with each other for self-movement, their moving directions are not in a straight line, and there is a misalignment. The general connection method is difficult to achieve misaligned push and pull. The utility model solves this problem. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a push-pull connection device that can realize the dislocation push-pull of the top-cutting hydraulic support and the scraper conveyor, and realize the self-movement of the top-cutting hydraulic support.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a dislocation push-pull connection device for a cut-top hydraulic support, comprising a push-pull seat and a push jack;

[0005] The push-pull seat includes a main board, a connecting plate, a first horizontal plate and a second horizontal plate. The main board is a rectangular flat plate, and the two opposite surfaces thereof are respectively a first side surface and a second side surface. A plurality of vertically arranged connecting plates are arranged in a row and fixed on the first side surface of the main board. All connecting plates are provided with connecting holes. The first horizontal plate and the second horizontal plate are fixed on the second side surface of the main board. The first horizontal plate is located directly above the second horizontal plate. The first horizontal plate and the second horizontal plate are provided with a plurality of first pin holes corresponding to each other in the upper and lower directions. Three first pin shafts are inserted into adjacent first pin holes and pass through the first horizontal plate and the second horizontal plate.

[0006] One end of the push jack is connected to two adjacent connecting plates through a second pin shaft.

[0007] Furthermore, a horizontal stiffening plate is fixed to the upper part and the lower part of the first side surface of the main board respectively, and all the connecting plates are arranged between the two horizontal stiffening plates and fixedly connected to the horizontal stiffening plates.

[0008] Furthermore, the connection plate is in the shape of a curved trapezoid, with three straight sides respectively connected and fixed to the main board and two horizontal stiffening plates, one curved side being an outwardly convex arc, and the connection hole being opened on the convex arc portion.

[0009] Furthermore, the first horizontal plate and the second horizontal plate are respectively located in the middle and bottom of the second side of the main board, and a plurality of ribs are fixed between the top surface and the second side of the first horizontal plate, and the ribs are all located between the corresponding two first pin holes.

[0010] Furthermore, each of the plurality of ribs is provided with a second pin hole.

[0011] Furthermore, it also includes a third pin shaft, which is inserted into the ribs above the three first pin shafts.

[0012] Furthermore, both ends of the third pin shaft are fixed with cotter pins.

[0013] Furthermore, both ends of the second pin shaft are fixed with cotter pins.

[0014] Compared with the prior art, the present invention has the following beneficial effects.

[0015] The push-pull seat in the utility model is provided with a plurality of connecting plates, and the left and right positions of the pushing jacks can be determined as required, and the left and right positions of the first pin shaft can also be adjusted according to the position of the pushing frame of the scraper conveyor, thereby realizing the staggered connection between the top cutting hydraulic support and the scraper conveyor, so that the top cutting hydraulic support staggered with the scraper conveyor can realize self-movement, saving a lot of manpower and improving the intelligence level of the working surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 for Figure 1 Top view of .

[0019] Figure 3 for Figure 1 Left view of .

[0020] Figure 4 This is a schematic diagram of the structure of the mainboard in the present utility model.

[0021] Figure 5 This is a schematic diagram of the use state of the utility model.

[0022] In the figure: 1 is a push-pull seat, 2 is a push jack, 3 is a main board, 4 is a connecting plate, 5 is a first horizontal plate, 6 is a second horizontal plate, 7 is a first side surface, 8 is a second side surface, 9 is a connecting hole, 10 is a first pin hole, 11 is a first pin shaft, 12 is a second pin shaft, 13 is a horizontal stiffening plate, 14 is a rib plate, 15 is a second pin hole, and 16 is a third pin shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0025] The utility model provides the following embodiments.

[0026] like Figures 1-4 As shown, the utility model is a dislocation push-pull connection device of a cut-top hydraulic support, comprising a push-pull seat 1 and a push jack 2;

[0027] The push-pull seat 1 includes a main board 3, a connecting plate 4, a first horizontal plate 5 and a second horizontal plate 6. The main board 3 is a rectangular flat plate, and the two opposite surfaces thereof are respectively a first side surface 7 and a second side surface 8. A plurality of vertically arranged connecting plates 4 are arranged in a row and fixed on the first side surface 7 of the main board 3. All connecting plates 4 are provided with connecting holes 9. The first horizontal plate 5 and the second horizontal plate 6 are fixed on the second side surface 8 of the main board 6. The first horizontal plate 5 is located directly above the second horizontal plate 6. The first horizontal plate 5 and the second horizontal plate 6 are provided with a plurality of upper and lower corresponding first pin holes 10. Three first pin shafts 11 are inserted into adjacent first pin holes 10 and pass through the first horizontal plate 5 and the second horizontal plate 6.

[0028] One end of the push jack 2 is connected to two adjacent connecting plates 4 through a second pin 12 .

[0029] A horizontal stiffening plate 13 is fixed to the upper and lower portions of the first side surface 7 of the main board 3, and all connecting plates 4 are arranged between the two horizontal stiffening plates 13 and fixedly connected to the horizontal stiffening plates 13. The two horizontal stiffening plates 13 make the connection between the connecting plates 4 and the main board 3 more stable.

[0030] The connecting plate 4 is in the shape of a curved trapezoid, with three straight sides respectively connected to the main plate 3 and the two horizontal stiffening plates 13, one curved side being a convex arc, and the connecting hole 9 being opened on the convex arc portion. In this way, the disassembly and assembly of the push jack 2 can be more convenient.

[0031] The first horizontal plate 5 and the second horizontal plate 6 are respectively located in the middle and bottom of the second side surface 8 of the main board 3. A plurality of ribs 14 are fixed between the top surface of the first horizontal plate 5 and the second side surface 8. The ribs 14 are all located between the corresponding two first pin holes 10.

[0032] The plurality of ribs 14 are each provided with a second pin hole 15 .

[0033] The third pin shaft 16 is further included. The third pin shaft 16 is inserted into the rib 14 above the three first pin shafts 11 .

[0034] The arrangement of the rib 14 and the third pin 16 makes the structure more solid and durable. At the same time, the third pin 16 serves to position the first pin 11 to prevent the first pin 11 from falling out.

[0035] Both ends of the third pin shaft 16 are fixed with cotter pins.

[0036] Both ends of the second pin shaft 12 are fixed with cotter pins.

[0037] like Figure 5As shown, when the utility model is used, the pushing jack 2 is connected to the base of the cutting top hydraulic support, and the push-pull seat 1 is connected to the pushing frame of the scraper conveyor through the first pin shaft 11. The specific position can be adjusted left and right by connecting the pushing jack 2 with different connecting plates 4, or connecting the first pin shaft 11 with different first pin holes 10. After the connection is made, the cutting top hydraulic support is lowered, and the scraper conveyor is used as the base point, and the pushing jack 2 is retracted to complete the forward movement of the cutting top hydraulic support. After moving forward into place, the cutting top hydraulic support is tightened to reach the initial supporting force, and then the auxiliary pushing work of the scraper conveyor can be completed by cooperating with the pushing jack of the working surface.

[0038] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A dislocation push-pull connection device for a truncated hydraulic support, characterized in that: It comprises a push-pull seat (1) and a push jack (2); The push-pull seat (1) comprises a main board (3), a connecting board (4), a first horizontal board (5) and a second horizontal board (6); the main board (3) is a rectangular flat board, and two opposite surfaces thereof are respectively a first side surface (7) and a second side surface (8); a plurality of vertically arranged connecting boards (4) are arranged in a row and fixed on the first side surface (7) of the main board (3); all connecting boards (4) are provided with connecting holes (9); the first horizontal board (5) and the second horizontal board (6) are fixed on the second side surface (8) of the main board (3); the first horizontal board (5) is located directly above the second horizontal board (6); the first horizontal board (5) and the second horizontal board (6) are provided with a plurality of first pin holes (10) corresponding to each other in upper and lower directions; three first pin shafts (11) are inserted into adjacent first pin holes (10) and pass through the first horizontal board (5) and the second horizontal board (6); One end of the push jack (2) is connected to two adjacent connecting plates (4) via a second pin shaft (12).

2. The staggered push-pull connection device for a truncated hydraulic support according to claim 1, characterized in that: A horizontal stiffening plate (13) is fixed to the upper and lower parts of the first side surface (7) of the main board (3), and all the connecting plates (4) are arranged between the two horizontal stiffening plates (13) and are fixedly connected to the horizontal stiffening plates (13).

3. The staggered push-pull connection device of a truncated hydraulic support according to claim 2, characterized in that: The connecting plate (4) is in the shape of a curved trapezoid, with three straight sides respectively connected and fixed to the main plate (3) and two horizontal stiffening plates (13), one curved side being an outwardly convex arc, and the connecting hole (9) being opened on the convex arc portion.

4. A staggered push-pull connection device for a truncated hydraulic support according to claim 1 or 2, characterized in that: The first horizontal plate (5) and the second horizontal plate (6) are respectively located at the middle and bottom of the second side surface (8) of the main plate (3); a plurality of ribs (14) are fixed between the top surface of the first horizontal plate (5) and the second side surface (8); and the ribs (14) are each located between the corresponding two first pin holes (10).

5. The staggered push-pull connection device of a truncated hydraulic support according to claim 4, characterized in that: The plurality of ribs (14) are each provided with a second pin hole (15).

6. The staggered push-pull connection device of a truncated hydraulic support according to claim 5, characterized in that: It also includes a third pin shaft (16), which is inserted into the rib plate (14) above the three first pin shafts (11).

7. The staggered push-pull connection device of a truncated hydraulic support according to claim 6, characterized in that: Both ends of the third pin shaft (16) are fixed with cotter pins.

8. The staggered push-pull connection device for a truncated hydraulic support according to claim 1, characterized in that: Both ends of the second pin shaft (12) are fixed with cotter pins.

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