Umbrella-shaped supporting type filling hydraulic support

Abstract

The invention provides an umbrella-shaped supporting type filling hydraulic support, which relates to the technical field of coal mine support, and comprises a support base, a hydraulic stand column, a lower platform, a top beam, a lifting jack, a sliding table, a connecting rod group, a sliding block group, a telescopic beam, a shield beam, a waste rock leakage scraper conveyor, a suspension chain, a pulling oil cylinder and a waste rock filling mechanism, the support base and the top beam are connected through the hydraulic stand column, the telescopic beam and the shield beam are connected with the sliding table and the top beam through the connecting rod set and the sliding block set, the front end of the support base is connected with the pulling oil cylinder, a goaf is filled through the gangue filling mechanism at the rear end of the support, and the gangue leakage scraper conveyor is hung on the shield beam through the hanging chain. The working resistance is large, the whole frame can be folded, the telescopic beam, the shield beam and the connecting rods on the two sides can be folded towards the center line, and more roadway space is saved; and the angle of the gangue filling mechanism can be freely adjusted to more effectively compact the gangue.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine support, and in particular to an umbrella-shaped supporting filling hydraulic support. Background Art

[0002] As one of the world's main energy sources, coal mining operations have long faced many severe challenges. Against the backdrop of continued growth in global energy demand and increasing depth and difficulty in mining mineral resources, the mining industry has an increasingly urgent need for efficient, safe and stable mining support equipment. In addition, coal mines emit a large amount of gangue during production. The traditional method is to directly pile it on the surface to form gangue mountains. According to statistics, the cumulative amount of gangue piled up so far exceeds 5 billion tons, and there are more than a thousand large-scale gangue mountains. However, the gangue generated during coal production and processing not only occupies a large amount of land, but also causes spontaneous combustion, polluting the atmosphere and groundwater. As a key equipment for filling gangue in coal mines, filling hydraulic supports are undergoing continuous development and change. In the structure of traditional hydraulic supports, the four-bar linkage plays a core role in mechanical movement, bearing horizontal force, and transmitting force system. However, the four-bar linkage occupies too much invalid space of the hydraulic support itself, which is also an important constraint on the development of the hydraulic support structure. Therefore, it is necessary to design a hydraulic support that can replace the traditional four-bar hydraulic support and provide stability and sufficient support strength. Summary of the invention

[0003] Aiming at the insufficiencies and defects of the existing hydraulic supports, the present invention invents an umbrella-type supporting filling hydraulic support, which comprises: a support base, a hydraulic column, a lower platform, a top beam, a lifting jack, a slide, a connecting rod group, a slider group, a telescopic beam, a shielding beam, a gangue scraper conveyor, a suspension chain, a pulling cylinder, and a gangue filling mechanism. The support base is provided with a hydraulic column, the top beam is connected to the support base through the hydraulic column, the lower platform is installed at the lower part of the lifting jack, and the The lifting jack pushes the slide table through telescopic movement, thereby driving the hinged connecting rod group to move. The connecting rod group pushes the slider group to slide on the slide rail on the top beam, thereby realizing the extension and retraction of the telescopic beam and the shielding beam. The gangue scraper conveyor is suspended on the shielding beam through a suspension chain, the pulling cylinder is connected to the front end of the bracket, and the gangue filling mechanism is assembled at the rear end of the bracket to compact the filling gangue leaked into the filling space through the gangue leakage port of the gangue scraper conveyor, so as to fill the goaf.

[0004] Preferably, the lower platform is installed and fixed at the lower part of the hydraulic column; the lower platform is provided with a left lifting jack and a right lifting jack which are symmetrical on the left and right; the slide includes a slide plane and four articulated seats 1, 2, 3 and 4 which are symmetrically arranged in the same size, and slides up and down with the lifting jack.

[0005] Preferably, the connecting rod group includes fourteen connecting rods, six of which are used for the extension and retraction of the telescopic beam, and eight of which are used for the extension and retraction of the shielding beam. The connecting rod groups on both sides are arranged symmetrically in two rows.

[0006] Furthermore, one end of the connecting rod one is hinged to the articulated seat one, and the other end is hinged to the connecting rod two; the connecting rod two is hinged to the articulated seat five on the top beam, and the end close to the connecting rod one is also hinged to the connecting rod three; the connecting rod three is connected to the left through shaft; one end of the connecting rod four is hinged to the articulated seat two, and the other end is hinged to the connecting rod five; the connecting rod five is hinged to the articulated seat six on the top beam, and the end close to the connecting rod four is also hinged to the connecting rod six; the connecting rod six is ​​connected to the left through shaft.

[0007] Furthermore, the left through shaft is connected to slider 1, slider 2, and slider 3; the slider 1, slider 2, and slider 3 slide in the slide rail 1, slide rail 2, and slide rail 3 on the top beam respectively to realize the extension and retraction of the telescopic beam.

[0008] Preferably, one end of the connecting rod seven is hinged to the articulated seat two, and the other end is hinged to the connecting rod eight; the connecting rod eight is hinged to the articulated seat seven on the top beam, and the end close to the connecting rod seven is also hinged to the connecting rod nine; the connecting rod nine is connected to the connecting shaft; the connecting rod eleven end is hinged to the connecting rod eight, and the other end is connected to the right through shaft; one end of the connecting rod eleven is hinged to the articulated seat three, and the other end is hinged to the connecting rod twelve; the connecting rod twelve is hinged to the articulated seat eight on the top beam, and the end close to the connecting rod eleven is also hinged to the connecting rod thirteen.

[0009] Furthermore, the connecting rod thirteen is connected to the connecting shaft, one end of the connecting rod fourteen is hinged to the connecting rod twelve, and the other end is connected to the right through shaft, and the right through shaft is connected to the slider four, slider five, and slider six; the slider four, slider five, and slider six slide in the slide rail four, slide rail five, and slide rail six on the top beam respectively to achieve the extension and retraction of the protective beam.

[0010] Preferably, the scraper conveyor is suspended on the shielding beam through the annular suspension chains on both sides, so that during the extension and retraction of the shielding beam, even if the distance and angle of the upper end of the chain change, the scraper conveyor can always remain horizontal.

[0011] Preferably, the gangue filling mechanism includes a boom, a boom cylinder, a rotating plate cylinder, a rocker arm, a telescopic cylinder 1, a telescopic cylinder 2, and an arc-shaped push plate, and the boom is hinged on a base; the telescopic boom cylinder drives the boom to swing up and down to lift the arc-shaped push plate; the telescopic rotating plate cylinder drives the rocker arm to extend the telescopic cylinder 1 as a whole; the arc-shaped push plate is connected to the telescopic cylinder 1 and the telescopic cylinder 2 by a hinge; when working, the telescopic cylinder 1 and the telescopic cylinder 2 are extended at the same time to push the arc-shaped push plate forward; when the telescopic cylinder 1 is extended alone, the arc-shaped push plate flips downward; when the telescopic cylinder 2 is extended alone, the arc-shaped push plate flips upward.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: 1. It replaces the four-bar linkage of the traditional hydraulic support and adopts an umbrella-shaped structure. The telescopic beam and the shielding beam can be folded to the center, occupying a small tunnel space, saving a large amount of invalid space of the hydraulic support itself, and also making the hydraulic support have a larger deformation adjustment range underground; 2. The slide rail top beam design, the connecting rod group cooperates with the slider to realize the extension and retraction of the telescopic beam and the shielding beam. With this arrangement, the slide rail top beam can transfer the supporting force of the hydraulic column to the telescopic beam and the shielding beam through the slider, making them have stronger and more stable supporting force. When subjected to vertical impact, the force will also be transmitted to the slide table through the connecting rod groups on both sides at the same time, making it have stronger anti-eccentric load capacity; 3. The scraper conveyor is suspended on the shielding beam through two pulleys that bypass the shielding beam and the annular suspension chain at the bottom of the scraper conveyor, so that when the shielding beam is extended and retracted, the scraper conveyor can always remain horizontal even if the distance and angle of the upper end of the chain change; 4. The gangue filling mechanism uses an arc-shaped push plate to compact the coal gangue, which increases the contact area between the push plate and the coal gangue. At the same time, a structure connected by multiple swing cylinders and connecting rods is adopted, so that during the filling process, the arc-shaped push plate can adjust its position in a wide range and at multiple angles, which can more effectively carry out gangue filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an umbrella-shaped supporting filling hydraulic support of the present invention.

[0014] Figure 2 It is a schematic structural diagram of an umbrella-type supporting filling hydraulic support in a folded state according to the present invention.

[0015] Figure 3 It is a structural schematic diagram of a power device of an umbrella-type supporting filling hydraulic support of the present invention.

[0016] Figure 4It is a schematic diagram of the connection structure of the telescopic beam of an umbrella-shaped support filling hydraulic support of the present invention.

[0017] Figure 5 The present invention is a schematic diagram of the connection structure of the shield beam of an umbrella-shaped support filling hydraulic support.

[0018] Figure 6 The present invention is a schematic diagram of the structure of a gangue filling mechanism of an umbrella-shaped support type filling hydraulic support.

[0019] Figure 7 The present invention is a schematic diagram of the working of the gangue filling mechanism of an umbrella-shaped support type filling hydraulic support.

[0020] In the figure: 1- bracket base; 2- hydraulic column; 3- lower platform; 4- top beam; 41- articulated seat five; 42- articulated seat six; 43- slide rail one; 44- slide rail two; 45- slide rail three; 46- articulated seat seven; 47- articulated seat eight; 48- slide rail four; 49- slide rail five; 410- slide rail six; 5- lifting jack; 51- left lifting jack; 52- right lifting jack; 6- slide; 61- slide plane; 62- articulated seat one; 63- articulated seat two; 64- articulated seat three; 65- articulated seat four; 7- connecting rod group; 71- connecting rod one; 72- connecting rod two; 73- connecting rod three; 74- connecting rod four; 75- connecting rod five; 76- connecting rod six; 77- connecting rod seven; 78- connecting rod Rod eight; 79-connecting rod nine; 710-connecting rod ten; 711-connecting rod eleven; 712-connecting rod twelve; 713-connecting rod thirteen; 714-connecting rod fourteen; 8-slider group; 81-slider one; 82-slider two; 83-slider three; 84-slider four; 85-slider five; 86-slider six; 9-telescopic beam; 91-left through shaft; 10-shielding beam; 101-connecting shaft; 102-right through shaft; 11-scraper conveyor for leaking waste rock; 12-suspension chain; 13-pulling cylinder; 14-waste rock filling mechanism; 141-boom; 142-boom cylinder; 143-turning plate cylinder; 144-rocker arm; 145-telescopic cylinder one; 146-telescopic cylinder two; 147-arc push plate. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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 embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] See also Figure 1 , Figure 2In one embodiment of the present invention, an umbrella-type supporting filling hydraulic support is provided, which has a simple structure and is easy to use. It replaces the traditional four-bar linkage and saves more tunnel space.

[0023] Specifically, the umbrella-type slide rail hydraulic support includes a support base 1, a hydraulic column 2, a lower platform 3, a top beam 4, a lifting jack 5, a slide 6, a connecting rod group 7, a slider group 8, a telescopic beam 9, a shield beam 10, a gangue scraper conveyor 11, a suspension chain 12, a pulling cylinder 13, and a gangue filling mechanism 14. The support base 1 is provided with a hydraulic column 2; the top beam 4 is connected to the support base 1 through the hydraulic column 2; the lower platform 3 is installed at the lower part of the lifting jack 5; the lifting jack 5 is connected to the lower part of the lifting jack 5 through the hydraulic column 2. The telescopic push slide 6 then drives the hinged connecting rod group 7 to move; the connecting rod group 7 pushes the slider group 8 to slide on the slide rail on the top beam 4, so as to realize the extension and retraction of the telescopic beam 9 and the shielding beam 10; the gangue scraper conveyor 11 is suspended on the shielding beam 10 through the suspension chain 12; the pulling cylinder 13 is connected to the front end of the bracket; the gangue filling mechanism 14 is assembled at the rear end of the bracket, and is used to compact the filling gangue leaked into the filling space through the gangue leakage port of the gangue scraper conveyor 11, so as to fill the goaf.

[0024] See also Figure 3 Specifically, the lower platform 3 is installed and fixed at the lower part of the hydraulic column 2; the lower platform 3 is provided with a left lifting jack 51 and a right lifting jack 52 which are symmetrical with each other; the slide 6 includes a slide plane 61 and four articulated seats 1 62, 2 63, 3 64 and 4 65 which are symmetrically arranged with the same size, and slides up and down with the lifting jacks.

[0025] See also Figure 4 , Figure 5 Specifically, the connecting rod group 7 includes fourteen connecting rods, six of which are used for the extension and retraction of the telescopic beam 9, and eight of which are used for the extension and retraction of the shielding beam 10. The connecting rod groups 7 on both sides are arranged symmetrically in two rows.

[0026] Specifically, one end of connecting rod 1 71 is hinged to hinge seat 1 62, and the other end is hinged to connecting rod 2 72; connecting rod 2 72 is hinged to hinge seat 5 41 on the top beam 4, and the end close to connecting rod 1 71 is also hinged to connecting rod 3 73; connecting rod 3 73 is connected to the left through shaft 91; one end of connecting rod 4 74 is hinged to hinge seat 2 63, and the other end is hinged to connecting rod 5 75; connecting rod 5 75 is hinged to hinge seat 6 42 on the top beam 4, and the end close to connecting rod 4 74 is also hinged to connecting rod 6 76; connecting rod 6 76 is connected to the left through shaft 91.

[0027] Specifically, the left through shaft 91 is connected to the slider 1 81 , the slider 2 82 , and the slider 3 83 ; the slider 1 81 , the slider 2 82 , and the slider 3 83 slide in the slide rail 1 43 , the slide rail 2 44 , and the slide rail 3 45 on the top beam 4 , respectively, to realize the extension and retraction of the telescopic beam 9 .

[0028] Specifically, one end of connecting rod seven 77 is hinged to articulated seat two 63, and the other end is hinged to connecting rod eight 78; connecting rod eight 78 is hinged to articulated seat seven 46 on top beam 4, and the end close to connecting rod seven 77 is also hinged to connecting rod nine 79; connecting rod nine 79 is connected to connecting shaft 101; one end of connecting rod ten 710 is hinged to connecting rod eight 78, and the other end is connected to right through shaft 102; one end of connecting rod eleven 711 is hinged to articulated seat three 64, and the other end is hinged to connecting rod twelve 712; connecting rod twelve 712 is hinged to articulated seat eight 47 on top beam 4, and the end close to connecting rod eleven 711 is also hinged to connecting rod thirteen 713.

[0029] Specifically, connecting rod thirteen 713 is connected to connecting shaft 101, one end of connecting rod fourteen 714 is hinged to connecting rod twelve 712, and the other end is connected to right through shaft 102, and right through shaft 102 is connected to slider four 84, slider five 85, and slider six 86; slider four 84, slider five 85, and slider six 86 slide in slide rail four 48, slide rail five 49, and slide rail six 410 on top beam 4 respectively, to realize extension and retraction of shielding beam 10.

[0030] Specifically, the scraper conveyor 11 is suspended on the shielding beam 10 through the annular suspension chains 12 on both sides, so that during the extension and retraction of the shielding beam 10, even if the distance and angle of the upper end of the chain change, the scraper conveyor 11 can always remain horizontal.

[0031] See also Figure 6 , Figure 7 Specifically, the gangue filling mechanism 14 includes a boom 141, a boom cylinder 142, a rotating plate cylinder 143, a rocker arm 144, a telescopic cylinder 145, a telescopic cylinder 2 146, and an arc-shaped push plate 147. The boom 141 is hinged on the base 1; the boom cylinder 142 is telescopic to drive the boom 141 to swing up and down, thereby lifting the arc-shaped push plate 146; the rotating plate cylinder 143 is telescopic to drive the rocker arm 144 to extend the telescopic cylinder 145 as a whole; the arc-shaped push plate 147 is connected to the telescopic cylinder 145 and the telescopic cylinder 2 146 by a hinge; when working, the telescopic cylinder 145 and the telescopic cylinder 2 146 are extended at the same time, thereby pushing the arc-shaped push plate 147 forward; when the telescopic cylinder 145 is extended alone, the arc-shaped push plate 147 is flipped downward; when the telescopic cylinder 2 146 is extended alone, the arc-shaped push plate 147 is flipped upward.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An umbrella-type supporting filling hydraulic support, characterized in that: The invention comprises a support base (1), a hydraulic column (2), a lower platform (3), a top beam (4), a lifting jack (5), a slide (6), a connecting rod group (7), a slide block group (8), a telescopic beam (9), a shielding beam (10), a gangue scraper conveyor (11), a suspension chain (12), a pulling cylinder (13), and a gangue filling mechanism (14). The support base (1) is provided with a hydraulic column (2), the top beam (4) is connected to the support base (1) through the hydraulic column (2), the lower platform (3) is installed at the lower part of the lifting jack (5), and the lifting jack (5) The sliding table (6) is pushed telescopically to drive the hinged connecting rod group (7) to move. The connecting rod group (7) pushes the sliding block group (8) to slide on the slide rail on the top beam (4), thereby realizing the extension and retraction of the telescopic beam (9) and the shielding beam (10). The gangue scraper conveyor (11) is suspended on the shielding beam (10) through a suspension chain (12). The pulling cylinder (13) is connected to the front end of the bracket. The gangue filling mechanism (14) is assembled at the rear end of the bracket to compact the filling gangue leaked from the gangue scraper conveyor (11) into the filling space through the gangue leaking port, thereby filling the goaf.

2. The umbrella-type support filling hydraulic support according to claim 1, characterized in that: The lower platform (3) is fixedly mounted on the lower part of the hydraulic column (2); a left lifting jack (51) and a right lifting jack (52) are arranged on the lower platform (3) in a left-right symmetrical manner; the slide (6) includes a slide plane (61) and four articulated seats 1 (62), 2 (63), 3 (64) and 4 (65) of the same size and symmetrically arranged, and slides up and down with the lifting jacks.

3. The umbrella-type support filling hydraulic support according to claim 1, characterized in that: The connecting rod group (7) comprises fourteen connecting rods, six of which are used for the extension and retraction of the telescopic beam (9), and eight of which are used for the extension and retraction of the shielding beam (10). The connecting rod groups (7) on both sides are arranged symmetrically in two rows.

4. The umbrella-type supporting filling hydraulic support according to claim 3, characterized in that: One end of the connecting rod one (71) is hinged to the hinge seat one (62), and the other end is hinged to the connecting rod two (72); the connecting rod two (72) is hinged to the hinge seat five (41) on the top beam (4), and the end close to the connecting rod one (71) is hinged to the connecting rod three (73); the connecting rod three (73) is connected to the left through shaft (91); one end of the connecting rod four (74) is hinged to the hinge seat two (63), and the other end is hinged to the connecting rod five (75); the connecting rod five (75) is hinged to the hinge seat six (42) on the top beam (4), and the end close to the connecting rod four (74) is hinged to the connecting rod six (76); the connecting rod six (76) is connected to the left through shaft (91).

5. The umbrella-type supporting filling hydraulic support according to claim 3, characterized in that: The left through shaft (91) is connected to a slider 1 (81), a slider 2 (82), and a slider 3 (83); the slider 1 (81), the slider 2 (82), and the slider 3 (83) slide in a slide rail 1 (43), a slide rail 2 (44), and a slide rail 3 (45) on the top beam (4) respectively, so as to realize the telescopic beam (9) to be telescopic.

6. The umbrella-type supporting filling hydraulic support according to claim 3, characterized in that: One end of the connecting rod seven (77) is hinged to the hinge seat two (63), and the other end is hinged to the connecting rod eight (78); the connecting rod eight (78) is hinged to the hinge seat seven (46) on the top beam (4), and the end close to the connecting rod seven (77) is hinged to the connecting rod nine (79); the connecting rod nine (79) is connected to the connecting shaft (101); one end of the connecting rod ten (710) is hinged to the connecting rod eight (78), and the other end is connected to the right through shaft (102); one end of the connecting rod eleven (711) is hinged to the hinge seat three (64), and the other end is hinged to the connecting rod twelve (712); the connecting rod twelve (712) is hinged to the hinge seat eight (47) on the top beam (4), and the end close to the connecting rod eleven (711) is hinged to the connecting rod thirteen (713).

7. The umbrella-type supporting filling hydraulic support according to claim 3, characterized in that: The connecting rod thirteen (713) is connected to the connecting shaft (101), one end of the connecting rod fourteen (714) is hinged to the connecting rod twelve (712), and the other end is connected to the right through shaft (102), and the right through shaft (102) is connected to the slider four (84), the slider five (85), and the slider six (86); the slider four (84), the slider five (85), and the slider six (86) slide in the slide rail four (48), the slide rail five (49), and the slide rail six (410) on the top beam (4) respectively, so as to realize the extension and retraction of the shielding beam (10).

8. The umbrella-type supporting filling hydraulic support according to claim 1, characterized in that: The scraper conveyor (11) is suspended on the shielding beam (10) through the annular suspension chains (12) on both sides, so that when the shielding beam (10) is extended and retracted, even if the distance and angle of the upper end of the chain change, the scraper conveyor (11) can always remain horizontal.

9. The umbrella-type supporting filling hydraulic support according to claim 1, characterized in that: The gangue filling mechanism (14) comprises a movable arm (141), a movable arm oil cylinder (142), a rotating plate oil cylinder (143), a rocker arm (144), a telescopic oil cylinder 1 (145), a telescopic oil cylinder 2 (146), and an arc-shaped push plate (147). The movable arm (141) is hinged on the base (1); the movable arm oil cylinder (142) is telescopic to drive the movable arm (141) to swing up and down, thereby lifting the arc-shaped push plate (146); the rotating plate oil cylinder (143) is telescopic to drive the rocker arm (144) so ​​that The telescopic cylinder 1 (145) is extended as a whole; the arc-shaped push plate (147) is connected to the telescopic cylinder 1 (145) and the telescopic cylinder 2 (146) by hinges; when working, the telescopic cylinder 1 (145) and the telescopic cylinder 2 (146) are extended at the same time to realize the forward movement of the arc-shaped push plate (147); when the telescopic cylinder 1 (145) is extended alone, the arc-shaped push plate (147) is turned downward; when the telescopic cylinder 2 (146) is extended alone, the arc-shaped push plate (147) is turned upward.

Images