Protective connecting structure of paste filling hydraulic support

Abstract

The utility model discloses a protection type connecting structure of a paste filling hydraulic support, which belongs to the technical field of coal mine filling mining and comprises a base, a front beam and a top beam are simultaneously and rotatably mounted on the base through a plurality of multi-connecting-rod components, and a plurality of bearing type hydraulic props are further mounted between the front beam and the base and between the top beam and the base. The side, close to the top beam, of the base is connected with the isolation retaining wall through a telescopic transmission assembly, the telescopic transmission assembly comprises a plurality of telescopic transmission mechanisms distributed side by side and two driving mechanisms, the two sides of the isolation retaining wall are fixedly connected with side protection skirts respectively, and the telescopic transmission assembly is integrally hidden between the two side protection skirts. According to the support, falling rocks from the top and the two sides can be blocked through the top beam and the side protection skirts correspondingly, the telescopic transmission assembly can be better protected, and therefore the telescopic transmission assembly is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine filling mining, in particular to a protective connection structure of paste filling hydraulic support. BACKGROUND

[0002] The paste filling hydraulic support is a special equipment playing a key role in the paste filling coal mining working face, which integrates the support of the coal mining area, the support of the filling area and the isolation function. The paste filling coal mining refers to a new type of coal mining method that solid wastes such as coal gangue and fly ash generated by coal mines or power plants are processed into high-concentration slurry without critical flow velocity and dehydration on the ground by adding cement and water, and the slurry is transported to the underground goaf through pipelines by using large filling industrial pumps in the industry, and the coal mining is replaced in time. The paste filling coal mining has become an important part of the "three-under" coal mining, and has a wide application in various mining areas.

[0003] In the prior art, a patent with the publication number CN 118442098 A and the name "split connection structure of split paste filling hydraulic support" is mainly driven by a gear and a rack. Since the gear and the rack are distributed on both sides of the base, and there is no protective device to protect or shield the rack, the falling rocks fall on the rack during the underground operation, which can easily cause the deformation of the rack or the damage of the gear teeth. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a protective connection structure of paste filling hydraulic support. The support can block the falling rocks from the top and the two sides through the top beam and the side skirt. Especially, the side skirt can intercept 80% of the falling rocks, which can better protect the telescopic transmission assembly, thereby avoiding the damage of the telescopic transmission assembly.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0006] A protective connection structure of paste filling hydraulic support, comprising a base, the base is simultaneously rotatably installed with a front beam and a top beam through a plurality of linear array distributed multi-link assemblies, and a plurality of linear array distributed bearing type hydraulic props are installed between the front beam and the base and the top beam and the base; the base is connected with an isolation retaining wall through a telescopic transmission assembly near the top beam; the telescopic transmission assembly comprises a plurality of side-by-side distributed telescopic transmission mechanisms and two driving mechanisms, and the two sides of the isolation retaining wall are fixedly connected with side skirts, and the telescopic transmission assembly is hidden between the two side skirts; each adjacent two telescopic transmission mechanisms are transmissionally connected with each other, the telescopic transmission mechanisms at both ends are transmissionally connected with the driving mechanisms, and the synchronous transmission of all the telescopic transmission mechanisms is realized under the driving of the two driving mechanisms.

[0007] By the above scheme, the support can block falling rocks from the top and the two sides through the top beam and the side skirt, especially the side skirt, which can intercept 80% of the falling rocks, so as to better protect the telescopic transmission assembly and avoid damage to the telescopic transmission assembly.

[0008] As a preferred embodiment of the protective connection structure of the paste filling hydraulic support, the telescopic transmission mechanism comprises an L-shaped positioning seat fixedly installed on the base by screws, an annular sliding rail welded on the L-shaped positioning seat, an annular screw sleeve rotatably installed on the annular sliding rail, and a telescopic screw internally threadedly and concentrically fitted with the annular screw sleeve and fixedly installed on the isolation barrier, the telescopic screw being completely accommodated in an accommodation sleeve fixed on the base.

[0009] By the above scheme, in order to realize linear telescopic movement of the telescopic transmission mechanism, when the annular screw sleeve is driven to rotate, the telescopic screw can realize linear telescopic movement under the transmission of the thread, the telescopic screw is accommodated in the accommodation sleeve, and the telescopic screw can be effectively protected by the accommodation sleeve, so as to avoid damage to the thread on the telescopic screw by falling rocks.

[0010] As a preferred embodiment of the protective connection structure of the paste filling hydraulic support, two groups of mutually parallel driven gears are fixed on the outer wall of the annular screw sleeve, and only two driven gears located on the same straight line are meshingly and drivably connected by a toothed chain one between each adjacent two telescopic transmission mechanisms.

[0011] By the above scheme, in order to realize transmission between the adjacent two telescopic transmission mechanisms, the two are drivably connected by the toothed chain one, so as to realize synchronous transmission.

[0012] As a preferred embodiment of the protective connection structure of the paste filling hydraulic support, the driving mechanism comprises a motor fixedly installed on the base, and a driving gear concentrically connected to the rotating shaft of the motor, the driving gear being meshingly and drivably connected to the nearest driven gear by a toothed chain two.

[0013] By the above scheme, in order to drive the telescopic transmission mechanism to telescope, the motor drives the driving gear to rotate, and the driven gear can rotate under the transmission of the toothed chain two.

[0014] As a preferred embodiment of the protective connection structure of the paste filling hydraulic support, the diameter of the driving gear is smaller than the diameter of the driven gear, and the diameters of the two driven gears on the same annular screw sleeve are equal.

[0015] By the above scheme, in order to reduce the driving load of the motor, the diameter of the driving gear is reduced and the diameter of the driven gear is increased, so as to reduce the torque for driving the driving gear to rotate and reduce the driving load of the motor.

[0016] As a preferred embodiment of the protective connection structure of the paste filling hydraulic support, the inside of the isolation retaining wall is provided with a lifting wall body, and the isolation retaining wall is fixedly connected with the lifting wall body through a plurality of linearly arranged lifting hydraulic props.

[0017] By adopting the above scheme, in order to conveniently adjust the height of the isolation retaining wall, the height of the lifting wall body is controlled by the lifting hydraulic props, so that the requirement of filling paste with different heights is met.

[0018] As a preferred embodiment of the protective connection structure of the paste filling hydraulic support, the multi-link assembly comprises a link seat fixedly installed on the base, the bottom ends of the front link and the rear link are rotatably installed on the link seat, the top ends of the front link and the rear link are rotatably installed on the bottom end of the upper link, and the top ends of the upper link are rotatably installed on the front beam and the top beam.

[0019] By adopting the above scheme, in order to conveniently and synchronously adjust the height of the front beam and the top beam, the height of the front beam and the top beam can be synchronously adjusted through the movable connection of the whole multi-link assembly.

[0020] As a preferred embodiment of the protective connection structure of the paste filling hydraulic support, a plurality of linearly arranged protective sides are rotatably installed on the sides of the front beam and the top beam.

[0021] By adopting the above scheme, in order to avoid that the falling stones in the well hurt the workers, the protective sides are installed in multiple places to support, and the protective sides are equivalent to "umbrella", which can effectively block the falling stones.

[0022] After the above technical scheme is adopted, the beneficial effects of the present application are:

[0023] 1. The support can block the falling stones from the top and the two sides through the top beam and the side protective skirt, especially the side protective skirt, which can intercept 80% of the falling stones, so that the telescopic transmission assembly can be better protected, and the telescopic transmission assembly is not damaged.

[0024] 2. In order to realize the linear extension and contraction of the telescopic transmission mechanism, when the annular nut is driven to rotate, the telescopic screw rod can realize linear extension and contraction under the transmission of the screw thread; wherein the telescopic screw rod is accommodated in the accommodation sleeve, and the telescopic screw rod can be effectively protected through the accommodation sleeve, so that the screw thread on the telescopic screw rod is not damaged by the falling stones.

[0025] 3. In order to realize the transmission between the two adjacent telescopic transmission mechanisms, the two are transmitted through the tooth chain I, so as to realize synchronous transmission.

[0026] 4. In order to drive the telescopic transmission mechanism to extend and contract, the driving gear is driven to rotate by the motor, and the driven gear can be rotated under the transmission of the tooth chain II.

[0027] 5. In order to reduce the driving load of the motor, the diameter of the driving gear is reduced, the diameter of the driven gear is increased, the torque driving the driving gear to rotate can be reduced, thereby reducing the driving load of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 The three-dimensional structure of the present application Figure 1 ;

[0030] Figure 2 The three-dimensional structure of the present application Figure 2 ;

[0031] Figure 3 The three-dimensional structure of the present application Figure 3 ;

[0032] Figure 4 The three-dimensional structure of the present application Figure 1 The three-dimensional structure behind the front beam and the roof beam

[0033] Figure 5 The three-dimensional structure of the present application Figure 4 The overall three-dimensional structure of the telescopic transmission assembly

[0034] Figure 6 The three-dimensional structure of the present application Figure 5 The three-dimensional structure of the telescopic transmission assembly

[0035] Figure 7 The three-dimensional structure of the present application Figure 6 The three-dimensional structure of the telescopic transmission mechanism

[0036] Figure 8 The three-dimensional structure of the present application Figure 7 The exploded view

[0037] Figure 9 The three-dimensional structure of the present application Figure 7 The three-dimensional structure of the internal part

[0038] Markings in the diagram: 1-Base; 2-Front beam; 3-Top beam; 4-Load-bearing hydraulic support; 5-Isolation barrier; 6-Telescopic transmission mechanism; 7-Drive mechanism; 8-Side skirt; 9-L-shaped positioning seat; 10-Annular slide rail; 11-Annular threaded sleeve; 12-Telescopic screw; 13-Storage sleeve; 14-Driven gear; 15-Gear chain one; 16-Motor; 17-Drive gear; 18-Gear chain two; 19-Lifting wall; 20-Lifting hydraulic support; 21-Connecting rod seat; 22-Front connecting rod; 23-Rear connecting rod; 24-Upper connecting rod; 25-Side guard. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] like Figures 1 to 4 As shown, a protective connection structure for a paste-filling hydraulic support is used for support in underground coal mining areas, filling areas, and isolation areas. It includes a base 1, on which a front beam 2 and a top beam 3 are rotatably mounted simultaneously via multiple linearly arrayed multi-link assemblies. Multiple linearly arrayed load-bearing hydraulic supports 4 are also installed between the front beam 2, the top beam 3, and the base 1. The side of the base 1 closest to the top beam 3 is connected to an isolation retaining wall 5 via a telescopic transmission assembly. The telescopic transmission assembly includes multiple parallel telescopic transmission mechanisms 6 and two drive mechanisms 7. Side skirts 8 are fixedly connected to both sides of the isolation retaining wall 5, and the entire telescopic transmission assembly is hidden between the two side skirts 8. Each pair of adjacent telescopic transmission mechanisms 6 is interconnected, and the telescopic transmission mechanisms 6 located at both ends are connected by the drive mechanisms 7, achieving synchronous transmission of all telescopic transmission mechanisms 6 under the drive of the two drive mechanisms 7. The support structure can block falling rocks from the top and sides through the top beam 3 and the side skirts 8, respectively. In particular, the side skirts 8 can intercept 80% of falling rocks, which can better protect the telescopic transmission components and thus prevent the telescopic transmission components from being damaged.

[0041] like Figure 1 As shown, the isolation barrier 5 houses a lifting wall 19, which is fixedly connected to the lifting wall 19 via multiple linearly arrayed lifting hydraulic supports 20. To facilitate adjustment of the height of the isolation barrier 5, the lifting hydraulic supports 20 control the height of the lifting wall 19, thereby meeting the needs of different filling paste heights.

[0042] like Figure 2As shown, the multi-link assembly includes a link seat 21 fixedly installed on the base 1, the link seat 21 is rotatably installed with the bottom ends of the front link 22 and the rear link 23 respectively, the top ends of the front link 22 and the rear link 23 are rotatably installed with the bottom end of the upper link 24 respectively, and the top end of the upper link 24 is rotatably installed with the front beam 2 and the top beam 3. In order to conveniently and synchronously adjust the height of the front beam 2 and the top beam 3, the height of the front beam 2 and the top beam 3 can be synchronously adjusted through the movable connection of the whole multi-link assembly.

[0043] As shown in the figure, Figure 2 As shown, the side of the front beam 2 and the top beam 3 is also rotatably installed with a plurality of linear array distributed protective sides 25. In order to avoid the misinjury of the staff by the falling stones underground, the protective sides 25 are supported by installing a plurality of protective sides 25, which are equivalent to "umbrella" and can effectively block the falling stones.

[0044] As shown in the figure, Figures 5 to 9 As shown, the telescopic transmission mechanism 6 includes an L-shaped positioning seat 9 fixedly installed on the base 1 by screws, an annular sliding rail 10 is welded on the L-shaped positioning seat 9, an annular screw sleeve 11 is rotatably installed on the annular sliding rail 10, and the inside of the annular screw sleeve 11 is threadedly and concentrically fitted with a telescopic screw 12 fixedly installed on the isolation retaining wall 5, the telescopic screw 12 can be completely accommodated in an accommodation sleeve 13 fixed on the base 1; wherein the telescopic screw 12 and the accommodation sleeve 13 are fixedly installed on the isolation retaining wall 5 and the base 1 respectively by flanges. In order to realize the linear telescopic of the telescopic transmission mechanism 6, when the annular screw sleeve 11 is driven to rotate, the telescopic screw 12 can realize linear telescopic under the transmission of the thread; wherein the telescopic screw 12 is accommodated in the accommodation sleeve 13, and the telescopic screw 12 can be effectively protected through the accommodation sleeve 13, so as to avoid the damage of the thread on the telescopic screw 12 by the falling stones.

[0045] As shown in the figure, Figures 5 to 6 As shown, the outer side wall of the annular screw sleeve 11 is fixed with two groups of parallel driven gears 14, and only the two driven gears 14 located on the same straight line are meshed and driven between each adjacent two telescopic transmission mechanisms 6 through a toothed chain 15. In order to realize the transmission between the adjacent two telescopic transmission mechanisms 6, the toothed chain 15 is used for transmission between them, so as to realize synchronous transmission.

[0046] As shown in the figure, Figure 6 As shown, the driving mechanism 7 includes a motor 16 fixedly installed on the base 1, a driving gear 17 is concentrically connected to the rotating shaft of the motor 16, and the driving gear 17 is meshed and driven with the nearest driven gear 14 through a toothed chain 18. In order to drive the telescopic transmission mechanism 6 to telescope, the driving gear 17 is driven to rotate by the motor 16, and the driven gear 14 can be rotated under the transmission of the toothed chain 18.

[0047] As shown in the figure, Figure 6As shown, the diameter of the driving gear 17 is smaller than the diameter of the driven gear 14; the diameters of the two driven gears 14 on the same ring nut 11 are equal. In order to reduce the driving load of the motor 16, the diameter of the driving gear 17 is reduced, and the diameter of the driven gear 14 is increased, so as to reduce the torque for driving the driving gear 17 to rotate, thereby reducing the driving load of the motor 16.

[0048] The working principle of the utility model:

[0049] In application, the support is supported underground through the front beam 22 and the top beam 33, and the coal mining area is mined through the coal mining equipment at the position of the front beam 22; when the coal mining work of the coal mining area is completed, the coal mining area becomes a goaf, at this time, the support advances to the coal mining area in a whole parallel mode, and meanwhile, the goaf is filled with the paste body; when the paste body is filled, the paste body is isolated and blocked through the isolation retaining wall 56 and the lifting wall body 1927 until the paste body is completely solidified, so as to repeat the coal mining.

[0050] The side protection skirt 8 is installed on both sides of the telescopic transmission assembly, can intercept 80% of the falling rocks, and can better protect the telescopic transmission assembly, so that the telescopic transmission assembly is not damaged. The position of the isolation retaining wall 5 can be adjusted through the telescopic transmission assembly, so as to accurately fill the paste body.

[0051] When the isolation retaining wall 5 is adjusted, the driving gear 17 is driven to rotate through the motor 16, and the driven gear 14 can be rotated under the transmission of the toothed chain two 18; at this time, the ring nut 11 is driven to rotate, and the telescopic screw rod 12 can be linearly telescoped under the transmission of the screw thread; the transmission between the adjacent two telescopic transmission mechanisms 6 is realized through the toothed chain one 15, so as to realize synchronous transmission. The telescopic screw rod 12 is accommodated in the accommodation sleeve 13, and the telescopic screw rod 12 can be effectively protected through the accommodation sleeve 13, so that the thread on the telescopic screw rod 12 is not damaged by the falling rocks.

[0052] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A protective connection structure for filling paste into hydraulic support, comprising a base (1), a front beam (2) and a top beam (3) are simultaneously rotatably installed on the base (1) through a plurality of linearly arrayed multi-link assemblies, and a plurality of load-bearing hydraulic props (4) are installed between the base (1) and the front beam (2) and the top beam (3) respectively; characterized in that The base (1) is connected with an isolation retaining wall (5) through a telescopic transmission assembly near one side of the top beam (3); the telescopic transmission assembly comprises a plurality of side-by-side distributed telescopic transmission mechanisms (6) and two driving mechanisms (7), and the two sides of the isolation retaining wall (5) are fixedly connected with side skirts (8), and the telescopic transmission assembly is hidden between the two side skirts (8) as a whole; Each adjacent two telescopic transmission mechanisms (6) are transmissionally connected with each other, the telescopic transmission mechanisms (6) at both ends are transmissionally connected by the driving mechanisms (7), and synchronous transmission of all the telescopic transmission mechanisms (6) is realized under the driving of the two driving mechanisms (7).

2. The protective connection structure for filling the paste into the hydraulic support, according to claim 1, characterized in that: The telescopic transmission mechanism (6) comprises an L-shaped positioning seat (9) fixedly installed on the base (1), an annular slide rail (10) fixedly connected on the L-shaped positioning seat (9), an annular screw sleeve (11) rotatably installed on the annular slide rail (10), and a telescopic screw rod (12) fixedly installed on the isolation retaining wall (5) and threadedly concentrically fitted in the annular screw sleeve (11), and the telescopic screw rod (12) can be completely accommodated in an accommodation sleeve (13) fixed on the base (1).

3. The protective connection structure for filling the paste into the hydraulic support, according to claim 2, characterized in that: The telescopic screw rod (12) and the accommodation sleeve (13) are fixedly installed on the isolation retaining wall (5) and the base (1) respectively through flanges.

4. The protective connection structure for filling the paste into the hydraulic support, according to claim 3, characterized in that: Two groups of driven gears (14) parallel to each other are fixed on the outer side wall of the annular screw sleeve (11), and only two driven gears (14) located on the same straight line are meshingly transmissionally connected through a tooth chain I (15) between each adjacent two telescopic transmission mechanisms (6).

5. The protective connection structure for filling the paste into the hydraulic support, according to claim 4, characterized in that: The driving mechanism (7) comprises a motor (16) fixedly installed on the base (1), and a driving gear (17) concentrically butted on the rotating shaft of the motor (16), and the driving gear (17) is meshingly transmissionally connected with the driven gear (14) closest thereto through a tooth chain II (18).

6. The guarded connection structure for filling the paste into the hydraulic support, according to claim 5, characterized in that: The diameter of the driving gear (17) is smaller than that of the driven gear (14).

7. The guarded connection structure for filling the paste into the hydraulic support according to claim 6, characterized in that: The diameters of the two driven gears (14) on the same annular screw sleeve (11) are equal.

8. The guarded connection of a paste-filled hydraulic support according to any of claims 1 - 7, characterized in that A lifting wall body (19) is accommodated and lifted in the isolation retaining wall (5), and the lifting wall body (19) is fixedly connected with the isolation retaining wall (5) through a plurality of linearly arrayed lifting hydraulic props (20).

9. The guarded connection structure for filling the paste into the hydraulic support according to claim 8, characterized in that: The multi-link assembly comprises a link seat (21) fixedly installed on the base (1), and the link seat (21) is rotatably installed with bottom ends of front links (22) and rear links (23) respectively, top ends of the front links (22) and the rear links (23) are rotatably installed with a bottom end of an upper link (24) respectively, and top ends of the upper link (24) are rotatably installed with the front beam (2) and the top beam (3) respectively.

10. The guarded connection structure for filling the paste into the hydraulic support according to claim 9, characterized in that: The front beam (2) and the top beam (3) are also provided with a plurality of linearly arranged side guards (25) which are rotatably mounted.

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