Hydraulic support for gob-removal and backfilling mining

Abstract

The application discloses a kind of throw gangue filling mining hydraulic support, it is related to hydraulic support technical field.The present application includes roof, the bottom of the roof is rotatably connected with two first threaded rods with opposite thread directions, the two sides of the first threaded rod are rotatably connected with T-shaped plate, the bottom of the T-shaped plate is rotatably connected with two rotating plates, the two rotating plates are rotatably connected with side plate, the upper side of the T-shaped plate is rotatably connected with two L-shaped rods, and the side of the side plate is rotatably connected with two second threaded rods.The rotating plate is arranged to make the rotating plate drive the side plate to adhere to the sidewall of the coal mine hole under the action of the T-shaped plate, and the upper end of the side plate is positioned on one side of the roof by the annular plate, and then the side plate supports the weak part of the sidewall of the coal mine hole, and the roof supports the weak part of the roof of the coal mine hole, so that the protection process of the coal mine hole is more convenient 。

Description

Technical Field

[0001] This invention belongs to the field of hydraulic supports, and more specifically, relates to a hydraulic support for rock dumping and backfilling mining. Background Technology

[0002] Conventional gangue backfilling mining often uses hydraulic backfilling supports and suspended bottom-discharge scraper conveyors for backfilling, with production determined by backfilling, which affects coal production. When mining coal, hydraulic supports are needed to extract the coal. During the mining process, many coal mine tunnels are generated. In order to prevent the coal mine tunnels from collapsing, it is necessary to support and reinforce the coal mine tunnels after coal mining.

[0003] Existing hydraulic support equipment for coal mining generally uses pneumatic cylinders to lift steel. During the lifting process, the steel comes into contact with the roof of the coal mine. As the pneumatic cylinders pressurize, the steel can support the weak parts of the coal mine roof. This type of hydraulic support equipment for coal mining can only support the roof of the coal mine, but the side walls of the coal mine also have weak parts.

[0004] To address these shortcomings, a hydraulic support for backfilling mining is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a hydraulic support for backfilling mining.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A hydraulic support for backfilling mining includes a top plate. The bottom of the top plate is rotatably fitted with a first threaded rod with opposite thread directions on both sides. Both sides of the first threaded rod are threaded with T-shaped plates. The bottom of the T-shaped plates are engaged with two rotating plates. A side plate is engaged between one end of the two rotating plates. Two L-shaped rods are mounted on the upper side of the T-shaped plates. Two second threaded rods are rotatably fitted on one side of the side plate. An annular plate is threaded between one end of the second threaded rod and one end of the L-shaped rod.

[0008] Optionally, two first fixing blocks are installed on both sides of the top plate, and a first through hole is opened on one side of the first fixing block, and the L-shaped rod is slidably fitted inside the first through hole.

[0009] Optionally, the outer side wall of one end of the L-shaped rod is provided with an external thread, and the inner side walls of both ends of the annular plate are provided with internal threads. The two internal threads are in opposite directions, and the external thread and one end of the second threaded rod are respectively threaded with the two internal threads.

[0010] Optionally, a guide groove is provided at the bottom of the top plate, and a first servo motor is installed inside the guide groove. One end of the first threaded rod is installed on the output end of the first servo motor. A threaded hole is provided on one side of the T-shaped plate, and the threaded hole is threadedly engaged with the first threaded rod. The T-shaped plate is slidably engaged inside the guide groove, and the first threaded rod is rotatably engaged inside the guide groove.

[0011] Optionally, the bottom of the T-shaped plate is equipped with two second fixing blocks, one side of the second fixing block is equipped with a third threaded rod, the bottom of the second fixing block is provided with a first slot, one side of the rotating plate is equipped with a locking block, the locking block is located inside the first slot, the first end of the rotating plate is provided with a second through hole, the third threaded rod is located inside the second through hole, and a nut is threaded onto the third threaded rod, one side of the nut is located on one side of the rotating plate.

[0012] Optionally, the second end of the rotating plate is provided with a third through hole, and a first rotating rod is rotatably engaged between the two third through holes. A positioning block is mounted on the first rotating rod, and a second slot is provided on both sides of the positioning block.

[0013] Optionally, a first placement groove is provided on one side of the side plate, and two locking posts are installed inside the first placement groove. The locking posts are located inside the second locking groove, and the positioning block is located inside the first placement groove.

[0014] Optionally, two third fixing blocks are installed on one side of the side plate, and a fourth through hole is opened on one side of the third fixing block. A second rotating rod is installed between the two second threaded rods, and the second rotating rod is rotatably engaged inside the fourth through hole.

[0015] Optionally, the bottom of the top plate is equipped with two electric push rods, the bottom of the electric push rods is equipped with a base, and a base plate is engaged between the two bases.

[0016] Optionally, the base plate has two second placement slots, two third placement slots, and four fifth through holes. The fifth through holes are connected to the third placement slots. A third rotating rod is rotatably fitted inside the fifth through hole. A retaining plate is installed between one end of the two third rotating rods. A third retaining groove is opened on the upper side of the retaining plate. The lower end of the side plate is located inside the third retaining groove. The bottom of the base is located inside the second placement slot.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] The rotating plate is designed so that, under the action of the T-shaped plate, it drives the side plate to fit against the side wall of the coal mine tunnel. The upper end of the side plate is positioned on one side of the roof plate by the annular plate. Thus, the side plate supports the weak part of the side wall of the coal mine tunnel. Similarly, the roof plate supports the weak part of the roof of the coal mine tunnel, making the protection process of the coal mine tunnel more convenient.

[0019] The third slot allows the lower end of the side plate to be engaged with the inside of the retaining plate, and the retaining plate guides the rotation direction of the side plate, reducing the problem of tilting during rotation and improving the stability of the side plate during rotation.

[0020] The guide groove is designed to allow the T-shaped plate to slide inside the guide groove under the action of the first threaded rod. The guide groove also guides the sliding direction of the T-shaped plate, reducing the problem of tilting during sliding and improving the stability of the T-shaped plate during sliding. The fifth through hole allows the third rotating rod to rotate inside the fifth through hole under the action of the clamping plate. The fifth through hole also guides the rotation direction of the third rotating rod, reducing the problem of the third rotating rod rotating out of the fifth through hole and improving the stability of the third rotating rod when rotating inside the base plate.

[0021] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0023] In the picture:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0025] Figure 2 This is a bottom view schematic diagram of an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of a side plate structure according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of an L-shaped rod structure according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of an annular plate structure according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of a T-shaped plate structure according to an embodiment of the present invention.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] Top plate 1, first fixing block 101, first through hole 102, guide groove 103, first threaded rod 104, electric push rod 105, base 106, T-shaped plate 107, threaded hole 108, second fixing block 109, first slot 110, third threaded rod 111, nut 112, rotating plate 113, locking block 114, L-shaped rod 115, annular plate 116, internal thread 117, third through hole 118, first rotating rod 119, positioning block 120, second slot 121, side plate 2, third fixing block 201, fourth through hole 202, second rotating rod 203, second threaded rod 204, first placement groove 205, locking post 206, bottom plate 3, second placement groove 301, third placement groove 302, fifth through hole 303, locking plate 304, third rotating rod 305, third slot 306.

[0032] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0033] The invention will now be described in further detail with reference to the accompanying drawings.

[0034] Please see Figure 1-6 As shown, this embodiment provides a hydraulic support for backfilling mining, including a top plate 1. The bottom of the top plate 1 is rotatably fitted with a first threaded rod 104 with opposite thread directions on both sides. Both sides of the first threaded rod 104 are threadedly fitted with T-shaped plates 107. The bottom of the T-shaped plates 107 is engaged with two rotating plates 113. A side plate 2 is engaged between one end of the two rotating plates 113. Two L-shaped rods 115 are installed on the upper side of the T-shaped plate 107. Two second threaded rods 204 are rotatably fitted on one side of the side plate 2. An annular plate 116 is threadedly fitted between one end of the second threaded rod 204 and one end of the L-shaped rod 115.

[0035] Working principle:

[0036] First, the rotating plate 113 is snapped onto the bottom of the T-shaped plate 107. Then, the side plate 2 is snapped onto the rotating plate 113. Next, the top plate 1 is attached to the top wall of the coal mine tunnel. Then, the first threaded rod 104 is rotated, which causes the two T-shaped plates 107 to slide. Since the threads on both sides of the first threaded rod 104 are opposite, the two T-shaped plates 107 slide away from each other. The T-shaped plates 107, through the rotating plate 113, cause the side plate 2 to attach to the side wall of the coal mine tunnel. The T-shaped plates 107 cause the L-shaped rod 115 to slide. Then, the annular plate 116 is threaded between the second threaded rod 204 and the L-shaped rod 115, thus completing the assembly of the top plate 1 and the side plate 2.

[0037] The rotating plate 113 is designed so that the rotating plate 113, under the action of the T-shaped plate 107, drives the side plate 2 to fit against the side wall of the coal mine tunnel. The upper end of the side plate 2 is positioned on one side of the top plate 1 by the annular plate 116. Thus, the side plate 2 supports the weak part of the side wall of the coal mine tunnel. Similarly, the top plate 1 supports the weak part of the roof of the coal mine tunnel, making the protection process of the coal mine tunnel more convenient.

[0038] To make the sliding process of the T-shaped plate 107 on one side of the top plate 1 more stable in this embodiment, improvements are made through the following structure, such as... Figure 1-6 As shown, in this embodiment, two first fixing blocks 101 are installed on both sides of the top plate 1. A first through hole 102 is opened on one side of the first fixing block 101. An L-shaped rod 115 is slidably fitted inside the first through hole 102. The outer side wall of one end of the L-shaped rod 115 is provided with an external thread. The inner side walls of both ends of the annular plate 116 are provided with internal threads. The two internal threads are in opposite directions. One end of the external thread and the second threaded rod 204 are respectively threaded with the two internal threads. A guide groove 103 is opened at the bottom of the top plate 1. A first servo is installed inside the guide groove 103. The motor has one end of the first threaded rod 104 mounted on the output end of the first servo motor. A threaded hole 108 is provided on one side of the T-shaped plate 107, which is threadedly engaged with the first threaded rod 104. Two second fixing blocks 109 are mounted on the bottom of the T-shaped plate 107. A third threaded rod 111 is mounted on one side of each second fixing block 109. A first slot 110 is provided at the bottom of each second fixing block 109. A locking block 114 is mounted on one side of the rotating plate 113, located inside the first slot 110. The first end of the rotating plate 113... A second through hole is provided, and a third threaded rod 111 is located inside the second through hole. A nut 112 is threaded onto the third threaded rod 111, with one side of the nut 112 located on one side of the rotating plate 113. A third through hole 118 is provided at the second end of the rotating plate 113, and a first rotating rod 119 is rotatably engaged between the two third through holes 118. A positioning block 120 is mounted on the first rotating rod 119, and a second slot 121 is provided on both sides of the positioning block 120. A first placement groove 205 is provided on one side of the side plate 2, and the first placement groove 205 is filled with... Two locking posts 206 are provided, which are located inside the second locking groove 121. The positioning block 120 is located inside the first placement groove 205. Two third fixing blocks 201 are installed on one side of the side plate 2. A fourth through hole 202 is opened on one side of the third fixing block 201. A second rotating rod 203 is installed between the two second threaded rods 204. The second rotating rod 203 is rotatably engaged inside the fourth through hole 202. The T-shaped plate 107 is slidably engaged inside the guide groove 103. The first threaded rod 104 is rotatably engaged inside the guide groove 103.

[0039] In this embodiment, during use, one end of the rotating plate 113 is first placed around the third threaded rod 111 through the second through hole. The rotating plate 113 drives the locking block 114 to be placed inside the first locking groove 110. Then, the nut 112 is threaded onto the third threaded rod 111. Next, the first servo motor is started, and the output end of the first servo motor drives the first threaded rod 104 to rotate. The first threaded rod 104 drives the T-shaped plate 107 to slide through the threaded hole 108. The T-shaped plate 107 slides inside the top plate 1 through the guide groove 103. The T-shaped plate 107 drives the L-shaped rod 115 to slide through the first through hole 102 in the first fixed position. The fixed block 101 slides inside, and then the positioning block 120 is rotated. The positioning block 120 drives the first rotating rod 119 to rotate inside the third through hole 118. Then the side plate 2 is moved. The side plate 2 is placed on the periphery of the positioning block 120 through the first placement groove 205. The side plate 2 drives the locking post 206 to be placed inside the second locking groove 121 through the first placement groove 205. Then the second threaded rod 204 is rotated. The second threaded rod 204 drives the second rotating rod 203 to rotate inside the fourth through hole 202. Then the annular plate 116 is threaded between the second threaded rod 204 and the L-shaped rod 115, thereby completing the assembly of the top plate 1 and the side plate 2.

[0040] The guide groove 103 is provided so that the T-shaped plate 107 slides inside the guide groove 103 under the action of the first threaded rod 104, and the guide groove 103 guides the sliding direction of the T-shaped plate 107, reducing the problem of the T-shaped plate 107 tilting during sliding and improving the stability of the T-shaped plate 107 during sliding.

[0041] To make the side plate 2 more stable during rotation on one side of the base plate 3 in this embodiment, improvements are made through the following structure, such as... Figure 1-2 As shown, the bottom of the top plate 1 in this embodiment is equipped with two electric push rods 105, and the bottom of the electric push rods 105 is equipped with a base 106. The two bases 106 are engaged with a base plate 3. The base plate 3 has two second placement slots 301, two third placement slots 302, and four fifth through holes 303. The fifth through holes 303 are connected to the third placement slots 302. The interior of the fifth through holes 303 is rotatably fitted with a third rotating rod 305. A retaining plate 304 is installed between one end of the two third rotating rods 305. The upper side of the retaining plate 304 has a third retaining groove 306. The lower end of the side plate 2 is located inside the third retaining groove 306. The bottom of the base 106 is located inside the second placement slot 301.

[0042] In this embodiment, the base 106 is first placed inside the base plate 3 through the second placement groove 301. The base 106 drives the electric push rod 105 to be placed on the upper side of the base plate 3. Then, the lower end of the side plate 2 is placed inside the third slot 306. When the side plate 2 rotates, the lower end of the side plate 2 drives the locking plate 304 to rotate inside the third placement groove 302 through the third slot 306. The locking plate 304 drives the third rotating rod 305 to rotate inside the fifth through hole 303. Then, the electric push rod 105 is started. The output end of the electric push rod 105 drives the top plate 1 to move and moves the top plate 1 to one side of the top wall of the coal mine tunnel.

[0043] The third slot 306 facilitates the engagement of the lower end of the side plate 2 with the inside of the retaining plate 304, and guides the rotation direction of the side plate 2 through the retaining plate 304, reducing the problem of tilting of the side plate 2 during rotation and improving the stability of the side plate 2 during rotation. The fifth through hole 303 allows the third rotating rod 305 to rotate inside the fifth through hole 303 under the action of the retaining plate 304, and guides the rotation direction of the third rotating rod 305 through the fifth through hole 303, reducing the problem of the third rotating rod 305 rotating out of the fifth through hole 303 and improving the stability of the third rotating rod 305 when rotating inside the base plate 3.

[0044] To drive multiple side plates 2 to rotate synchronously, the following two implementation methods are proposed:

[0045] Example 1: In this example, two third fixing blocks 201 are installed on one side of the side plate 2. A fourth through hole 202 is opened on one side of the third fixing block 201. A second rotating rod 203 is rotatably engaged between the two fourth through holes 202. Two second threaded rods 204 are installed on the second rotating rod 203. One end of the second threaded rod 204 is threadedly engaged with one end of the L-shaped rod 115 with an annular plate 116. The multiple second threaded rods 204 rotate synchronously under the drive of the second rotating rod 203.

[0046] Example 2: The difference between this example and Example 1 is that, in order to allow multiple side plates 2 to rotate synchronously, a second servo motor can be installed between two adjacent rotating plates 113. The output end of the second servo motor is equipped with a rotating shaft, and the side plate 2 is installed on the rotating shaft. The multiple second servo motors operate in the same state.

[0047] This invention is not limited to the embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Technical aspects, shapes, and structures not described in detail in this invention are all publicly known technologies.

Claims

1. A hydraulic support for backfilling and mining operations, characterized in that, include: The top plate (1) has a first threaded rod (104) with opposite thread directions on both sides rotatably fitted at its bottom. Both sides of the first threaded rod (104) are threaded with T-shaped plates (107). The bottom of the T-shaped plate (107) is engaged with two rotating plates (113). A side plate (2) is engaged between one end of the two rotating plates (113). Two L-shaped rods (115) are installed on the upper side of the T-shaped plate (107). Two second threaded rods (204) are rotatably fitted on one side of the side plate (2). An annular plate (116) is threaded between one end of the second threaded rod (204) and one end of the L-shaped rod (115).

2. The hydraulic support for backfilling mining according to claim 1, characterized in that, Two first fixing blocks (101) are installed on both sides of the top plate (1). A first through hole (102) is opened on one side of the first fixing block (101), and the L-shaped rod (115) is slidably fitted inside the first through hole (102).

3. The hydraulic support for backfilling mining according to claim 1, characterized in that, The outer side wall of one end of the L-shaped rod (115) is provided with an external thread, and the inner side walls of both ends of the annular plate (116) are provided with internal threads. The two internal threads are in opposite directions, and one end of the external thread and the second threaded rod (204) respectively engages with the two internal threads.

4. The hydraulic support for backfilling mining according to claim 1, characterized in that, The bottom of the top plate (1) is provided with a guide groove (103), and a first servo motor is installed inside the guide groove (103). One end of the first threaded rod (104) is installed on the output end of the first servo motor. A threaded hole (108) is provided on one side of the T-shaped plate (107), and the threaded hole (108) is threadedly engaged with the first threaded rod (104).

5. A hydraulic support for backfilling mining according to claim 1, characterized in that, The bottom of the T-shaped plate (107) is equipped with two second fixing blocks (109). A third threaded rod (111) is installed on one side of the second fixing block (109). A first slot (110) is opened at the bottom of the second fixing block (109). A locking block (114) is installed on one side of the rotating plate (113). The locking block (114) is located inside the first slot (110). A second through hole is opened at the first end of the rotating plate (113). The third threaded rod (111) is located inside the second through hole. A nut (112) is threaded onto the third threaded rod (111). One side of the nut (112) is located on one side of the rotating plate (113).

6. A hydraulic support for backfilling mining according to claim 1, characterized in that, The second end of the rotating plate (113) is provided with a third through hole (118), and a first rotating rod (119) is rotatably engaged between the two third through holes (118). A positioning block (120) is mounted on the first rotating rod (119), and a second slot (121) is provided on both sides of the positioning block (120).

7. A hydraulic support for backfilling mining according to claim 6, characterized in that, The side plate (2) has a first placement groove (205) on one side. The first placement groove (205) is equipped with two locking posts (206). The locking posts (206) are located inside the second locking groove (121). The positioning block (120) is located inside the first placement groove (205).

8. A hydraulic support for backfilling mining according to claim 1, characterized in that, Two third fixing blocks (201) are installed on one side of the side plate (2), and a fourth through hole (202) is opened on one side of the third fixing block (201). A second rotating rod (203) is installed between the two second threaded rods (204), and the second rotating rod (203) is rotatably engaged inside the fourth through hole (202).

9. A hydraulic support for backfilling mining according to claim 1, characterized in that, The bottom of the top plate (1) is equipped with two electric push rods (105), and the bottom of the electric push rods (105) is equipped with a base (106). The two bases (106) are engaged with a base plate (3).

10. A hydraulic support for backfilling mining according to claim 9, characterized in that, The base plate (3) has two second placement slots (301), two third placement slots (302), and four fifth through holes (303). The fifth through holes (303) are connected to the third placement slots (302). A third rotating rod (305) is rotatably fitted inside the fifth through hole (303). A retaining plate (304) is installed between one end of the two third rotating rods (305). A third retaining groove (306) is opened on the upper side of the retaining plate (304). The lower end of the side plate (2) is located inside the third retaining groove (306). The bottom of the base (106) is located inside the second placement slot (301).

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