Hydraulic support top beam extension protection device

Abstract

The utility model belongs to the technical field of coal mining, and particularly relates to a hydraulic support top beam extension protection device which comprises a top beam supporting mechanism, the top beam supporting mechanism comprises a base placed on the ground, concave supports are symmetrically installed on the two side walls of the base respectively, sliding blocks are arranged in the middles of the concave supports in a sliding mode, and the side walls of the sliding blocks are connected with connecting rods. A trapezoidal support is transversely installed at the end of the connecting rod, concave hinge frames are installed on the two sides of the top of the base respectively, a first driving roll shaft is hinged to the middle of each concave hinge frame, an inclined connecting rod is installed at the end of each first driving roll shaft, and an embedding shaft is hinged to the end of a rod body of each inclined connecting rod. The deflection angle of the concave support is changed, an electric telescopic cylinder and an extension pushing rod are adopted to stretch out and draw back, the plate face of the top beam extension top plate is pushed and changed to move front and back, then the structure of the top end of the mine is extended and expanded, and gravel falling at the top end of the mine is avoided.

Description

Technical Field

[0001] This utility model relates to the field of coal mining, and specifically discloses a hydraulic support top beam extension protection device. Background Technology

[0002] Hydraulic supports are structures used to control mine pressure in coal mining faces. The mine pressure acts on the hydraulic supports as an external load. In the mechanical system of interaction between the hydraulic supports and the surrounding rock of the mining face, if the resultant force of all supporting components of the hydraulic support is exactly linear with the resultant force of the external load acting on the hydraulic support from the roof, then the hydraulic support is highly suitable for the surrounding rock of that mining face.

[0003] Further search revealed that: Application number CN202323484355.6 is a hydraulic support top beam lifting structure, the contents of which include: a hydraulic support top beam lifting structure. Due to the limited space in the underground fully mechanized mining face, the replacement and hoisting of the intermediate trough of the underground scraper conveyor is still carried out by traditional methods such as pneumatic hoists and hand hoists. This method has high labor intensity, low efficiency and high safety risks for workers. The present invention consists of: a hydraulic support (8), a hydraulic support telescopic beam (2) and a telescopic cylinder (3). A lifting component (1) is fixed on the hydraulic support; the lifting component includes a lifting cable (4) and a sliding wheel group (6) fixed on the hydraulic support. One end of the lifting lock is hinged to the hydraulic support telescopic beam, and the other end passes around the sliding wheel group and is fixed to the hook (7). The present invention is used for lifting the top beam of the hydraulic support.

[0004] Traditional hydraulic supports, in the process of coal mining, cannot extend and expand the structure of the top beam according to the actual situation, resulting in a considerable portion of the top support position being a dead angle. This part is particularly important, so it is necessary to develop a structure that can automatically extend and expand to make up for this problem. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a hydraulic support top beam extension protection device, including a top beam support mechanism. The top beam support mechanism includes a base placed on the ground. Concave brackets are symmetrically installed on the two side walls of the base. A sliding block is slidably provided in the middle of the concave bracket. A connecting rod is connected to the side wall of the sliding block. A trapezoidal bracket is installed laterally at the end of the connecting rod. Concave hinge frames are installed on the two sides of the top of the base. A first drive roller is hinged in the middle of the concave hinge frame. An inclined connecting rod is installed at the end of the first drive roller. An interlocking shaft is hinged at the end of the inclined connecting rod.

[0006] As a preferred embodiment of this utility model: connecting seats are installed on both sides of the top of the base, a sleeve is installed on the top of the connecting seat, a pneumatic cylinder is installed on the top of the sleeve, and a mine tunnel support is provided on the top of the pneumatic cylinder.

[0007] As a preferred embodiment of this utility model: a concave groove is provided in the middle of the mine tunnel support, and a tail adjustment roller is hinged to both sides of the back of the mine tunnel support. An arc-shaped baffle is hinged to the bottom end of the tail adjustment roller, and the top of the arc-shaped baffle is supported by the top surface of the mine tunnel.

[0008] As a preferred embodiment of the present invention: an inclined support mechanism is installed at the bottom edge of the mine tunnel support, the inclined support mechanism includes inclined pressure cylinders installed on both sides of the bottom of the mine tunnel support, the telescopic end of the inclined pressure cylinder is provided with a connecting support rod, and an abutment side plate is installed on the side of the base.

[0009] As a preferred embodiment of this utility model: the top end of the connecting support rod is provided with a hinged roller shaft, the end of the hinged roller shaft is connected to the external junction end for transmission, the bottom end of the mine support is provided with a concave sliding groove, the end of the concave sliding groove is provided with a top beam extension plate, the end of the top beam extension plate is provided with a connecting rod, and the middle of the connecting rod is provided with an extension push rod.

[0010] The end of the extension push rod is provided with an electric telescopic cylinder. The bottom of the cylinder body of the electric telescopic cylinder is equipped with a cylinder mounting seat. The front surface of the base is equipped with a connecting mechanism. The connecting mechanism includes a connecting support rod installed in the middle of the end of the base. The end of the connecting support rod is provided with a sliding support rod. The end of the sliding support rod is fitted with a limit sleeve.

[0011] As a preferred embodiment of this utility model: the two ends of the mine tunnel support are respectively provided with side wall uprights, the side wall uprights are arranged sequentially on both sides of the mine tunnel support, the end of the interlocking shaft is hinged to the arc-shaped baffle, and the side wall of the arc-shaped baffle is equipped with a side wall blocking mechanism.

[0012] As a preferred embodiment of the present invention: the side wall blocking mechanism includes a scheduling roller shaft installed on both sides of the base, one end of the scheduling roller shaft is provided with an access base, a second drive roller shaft is installed in the middle of the access base, a connecting block is installed on the axial side wall of the second drive roller shaft, and a plurality of arc-shaped blocking brackets are sequentially provided on the surface of the connecting block.

[0013] Beneficial effects:

[0014] 1) By using a combination of tilting cylinders and pneumatic cylinders, the deflection angle of the concave support is changed. The electric telescopic cylinder and extension push rod are used to extend and push the top beam to change the surface movement of the top plate. After moving back and forth, the top beam is extended and expanded to support the structure at the top of the mine, preventing the falling of gravel from the top of the mine and expanding the protective area of ​​the extended support of the top beam.

[0015] 2) The hinged deflection is achieved by using the interlocking shaft and one end of the interlocking shaft, the hinged extension is achieved by using the tail adjustment roller, and the deflection is achieved by using the axial structure of the drive roller shaft. This facilitates the contact with the corresponding side gravel for blocking, increases the extension support area of ​​the hydraulic support top beam, and ensures more convenient protection for the area below the hydraulic support. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the concave sliding groove structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the abutment side plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the concave hinge frame structure of this utility model.

[0022] In the diagram: 1. Top beam support mechanism; 11. Base; 12. Concave bracket; 13. Sliding block; 14. Connecting rod; 15. Concave hinge frame; 16. First drive roller; 17. Inclined connecting rod; 18. Embedded shaft; 19. Connecting seat; 191. Sleeve; 192. Pneumatic cylinder; 193. Mine tunnel support; 194. Concave slot; 195. End adjustment roller; 196. Arc-shaped baffle.

[0023] 2. Inclined support mechanism; 21. Inclined pressure cylinder; 22. Connecting strut; 23. Abutting side plate; 24. Hinge roller; 25. Concave sliding groove; 26. Top beam extension plate; 27. Connecting rod; 28. Extension push rod; 291. Electric telescopic cylinder; 292. Pressure cylinder mounting base;

[0024] 3. Connecting mechanism; 31. Connecting strut; 32. Sliding strut; 33. Limiting sleeve;

[0025] 4. Side wall blocking mechanism; 41. Scheduling roller; 42. Access base; 43. Second drive roller; 44. Connecting block; 45. Arc-shaped shielding bracket. Detailed Implementation

[0026] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0027] The accompanying drawings in this utility model embodiment: different types of cross-sectional lines in the drawings are not labeled according to national standards, nor do they specify the material requirements of the components. They are used to distinguish the cross-sectional views of the components in the drawings.

[0028] Please see Figure 1 - Figure 5 A hydraulic support beam extension protection device includes a beam support mechanism 1. The beam support mechanism 1 includes a base 11 placed on the ground. Concave brackets 12 are symmetrically installed on the two side walls of the base 11. A sliding block 13 is slidably provided in the middle of the concave bracket 12. A connecting rod 14 is connected to the side wall of the sliding block 13. A trapezoidal bracket is installed laterally at the end of the connecting rod 14. Concave hinge frames 15 are installed on the two sides of the top of the base 11. A first drive roller shaft 16 is hinged in the middle of the concave hinge frame 15. An inclined connecting rod 17 is installed at the end of the first drive roller shaft 16. An interlocking shaft 18 is hinged at the end of the inclined connecting rod 17.

[0029] In this embodiment: connecting seats 19 are installed on both sides of the top of the base 11, a sleeve 191 is installed on the top of the connecting seat 19, a pneumatic cylinder 192 is installed on the top of the sleeve 191, and a mine tunnel support 193 is supported on the top of the pneumatic cylinder 192.

[0030] The pneumatic cylinder 192 and the mine support 193 are used to change the elevation angle of the mine support 193 after the cylinder body of the pneumatic cylinder 192 is supported.

[0031] In this embodiment: a concave groove 194 is provided in the middle of the mine tunnel support 193, and a tail adjustment roller 195 is hinged to both sides of the back of the mine tunnel support 193. An arc-shaped baffle 196 is hinged to the bottom end of the tail adjustment roller 195, and the top end of the arc-shaped baffle 196 is supported by the top surface of the mine tunnel.

[0032] The position of the arc-shaped baffle 196 is changed after the axial hinge deflection of the arc-shaped baffle 196 and the end adjustment roller 195.

[0033] In this embodiment: an inclined support mechanism 2 is installed at the bottom edge of the mine support 193. The inclined support mechanism 2 includes inclined pressure cylinders 21 installed on both sides of the bottom of the mine support 193. The telescopic end of the inclined pressure cylinder 21 is provided with a connecting support rod 22. An abutting side plate 23 is installed on the side of the base 11.

[0034] The inclined pressure cylinder 21 and connecting strut 22 are used to share the supporting weight of the top of the mine support 193 in the inclined support state.

[0035] In this embodiment: the top end of the connecting strut 22 is provided with a hinged roller shaft 24, the end of the hinged roller shaft 24 is connected to the external junction end for transmission, the bottom end of the mine support 193 is provided with a concave sliding groove 25, the end of the concave sliding groove 25 is provided with a top beam extension plate 26, the end of the top beam extension plate 26 is provided with a connecting rod 27, and the middle of the connecting rod 27 is provided with an extension push rod 28.

[0036] During the extension movement of the rod body, the extension push rod 28 and connecting rod 27 change the position of the top beam extension plate 26, and smoothly form sliding extension and contraction in the groove of the concave sliding groove 25.

[0037] In this embodiment: the end of the extension push rod 28 is provided with an electric telescopic cylinder 291, the bottom of the cylinder body of the electric telescopic cylinder 291 is provided with a cylinder mounting seat 292, the front surface of the base 11 is provided with a connecting mechanism 3, the connecting mechanism 3 includes a connecting support rod 31 installed in the middle of the end of the base 11, the end of the connecting support rod 31 is provided with a sliding support rod 32, and the end of the sliding support rod 32 is sleeved with a limit sleeve 33.

[0038] The connecting strut 31 and the sliding strut 32 are used to fix the connecting strut 31 in place.

[0039] In this embodiment: the two ends of the mine tunnel support 193 are respectively provided with side wall uprights, and the side wall uprights are arranged sequentially on both sides of the mine tunnel support 193. The end of the connecting shaft 18 is hinged to the arc-shaped baffle 196, and the side wall of the arc-shaped baffle 196 is equipped with a side wall blocking mechanism 4.

[0040] The arc-shaped baffle 196 is adapted to be installed with the side wall blocking mechanism 4.

[0041] In this embodiment: the side wall blocking mechanism 4 includes a scheduling roller 41 installed on both sides of the base 11. One end of the scheduling roller 41 is provided with an access base 42. A second drive roller 43 is installed in the middle of the access base 42. A connecting block 44 is installed on the axial side wall of the second drive roller 43. A plurality of arc-shaped blocking brackets 45 are sequentially provided on the surface of the connecting block 44.

[0042] The connecting block 44 and the arc-shaped shielding bracket 45 used prevent large falling rocks from accidentally impacting and damaging the cylinder when the equipment is placed in the mine.

[0043] In practical use, step one: adapt and install the hydraulic support;

[0044] At this time, personnel need to use the concave bracket 12 to stack and place it at the bottom of the mine shaft. The first drive roller 16 is axially deflected to align with the rod structure of the inclined connecting rod 17 to achieve assembly. The base 11 is placed on the connecting blocks 44 on both sides of the mine shaft bracket 193 to achieve hinge. The tail adjustment roller 195 is used to achieve flipping and change the position of the arc baffle 196. The cylinder extension state of the pneumatic cylinder 192 is used to achieve hinge. The tail adjustment roller 195 is used to hinge and push against the end of the coal mine shaft.

[0045] At this time, the operator starts the pneumatic cylinder 192, and the telescopic end controls the flipping of the mine support 193, changing the support height between the mine support 193 and the mine roof until they fit together. Then, when it is necessary to extend the extension length of the mine support 193, the operator starts the electric telescopic cylinder 291. After being powered on, the extension push rod 28 will gradually move the top beam extension plate 26 forward in a straight line. At this time, the operator needs to control the extension of the cylinder of the electric telescopic cylinder 291 to control the top beam extension plate 26 to expand the forward area. Then, the operator uses the back-and-forth displacement of the top beam extension plate 26 to gradually change the back-and-forth movement direction of the cylinder of the extension push rod 28 according to the needs of the application, until it is adjusted to a suitable distance and then stops.

[0046] In order to change the elevation angle of the front end of the mine support 193;

[0047] Step Two: Side Support and Damping;

[0048] To adapt to the support height of the mine tunnel support 193, the second drive roller 43 will also change its height. After changing to a suitable distance, it will stop. At this time, the operator will then use the connecting block 44 to support the end of the arc-shaped shielding support 45 to provide protective support for the side area of ​​the hydraulic support. After the support is in place, the gravel in the space on the other side can be prevented from rolling down and causing a landslide. The expanded space also provides better protection for the mine tunnel below by holding back the gravel.

[0049] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0051] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A hydraulic support top beam extension protection device, comprising a top beam support mechanism (1), characterized in that: The top beam support mechanism (1) includes a base (11) placed on the ground. Concave brackets (12) are symmetrically installed on the two side walls of the base (11). A sliding block (13) is slidably provided in the middle of the concave bracket (12). A connecting rod (14) is connected to the side wall of the sliding block (13). A trapezoidal bracket is installed laterally at the end of the connecting rod (14). Concave hinge frames (15) are installed on the two sides of the top of the base (11). A first drive roller shaft (16) is hinged in the middle of the concave hinge frame (15). An inclined connecting rod (17) is installed at the end of the first drive roller shaft (16). An interlocking shaft (18) is hinged at the end of the inclined connecting rod (17).

2. The hydraulic support top beam extension protection device according to claim 1, characterized in that: The base (11) has connecting seats (19) installed on both sides of the top. The connecting seats (19) have sleeves (191) installed at the top. The sleeves (191) have pneumatic cylinders (192) installed at the top. The pneumatic cylinders (192) have mine tunnel supports (193) at the top.

3. The hydraulic support top beam extension protection device according to claim 2, characterized in that: The mine support (193) has a concave groove (194) in the middle. The back of the mine support (193) is hinged to the two sides of the back side with end adjustment rollers (195). The bottom end of the end adjustment rollers (195) is hinged to an arc-shaped baffle (196). The top end of the arc-shaped baffle (196) is supported by the top surface of the mine.

4. The hydraulic support top beam extension protection device according to claim 3, characterized in that: The bottom edge of the mine support (193) is inclined to install an inclined support mechanism (2). The inclined support mechanism (2) includes inclined pressure cylinders (21) installed on both sides of the bottom of the mine support (193). The telescopic end of the inclined pressure cylinder (21) is provided with a connecting support rod (22). The side of the base (11) is installed with an abutting side plate (23).

5. The hydraulic support top beam extension protection device according to claim 4, characterized in that: The top of the connecting strut (22) is provided with a hinged roller shaft (24), and the end of the hinged roller shaft (24) is connected to the external junction. The bottom of the mine support (193) is provided with a concave sliding groove (25). The end of the concave sliding groove (25) is provided with a top beam extension plate (26) laterally. The end of the top beam extension plate (26) is provided with a connecting rod (27) laterally. The middle of the connecting rod (27) is provided with an extension push rod (28). The end of the extension push rod (28) is provided with an electric telescopic cylinder (291). The bottom of the cylinder body of the electric telescopic cylinder (291) is equipped with a cylinder mounting seat (292). The front surface of the base (11) is equipped with a connecting mechanism (3). The connecting mechanism (3) includes a connecting support rod (31) installed in the middle of the end of the base (11). The end of the connecting support rod (31) is provided with a sliding support rod (32). The end of the sliding support rod (32) is fitted with a limit sleeve (33).

6. The hydraulic support top beam extension protection device according to claim 5, characterized in that: The mine tunnel support (193) is provided with side wall uprights at both ends, and the side wall uprights are arranged sequentially on both sides of the mine tunnel support (193).

7. The hydraulic support top beam extension protection device according to claim 3, characterized in that: The end of the interlocking shaft (18) is hinged to the arc-shaped baffle (196). The side wall of the arc-shaped baffle (196) is equipped with a side wall blocking mechanism (4). The side wall blocking mechanism (4) includes a scheduling roller shaft (41) installed on both sides of the base (11). One end of the scheduling roller shaft (41) is provided with an access base (42). A second drive roller shaft (43) is installed in the middle of the access base (42). A connecting block (44) is installed on the axial side wall of the second drive roller shaft (43). A plurality of arc-shaped shielding brackets (45) are sequentially provided on the surface of the connecting block (44).

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