A high-efficiency jet grouting device for mine

Abstract

The present application relates to the technical field of mine wall reinforcement, and discloses a mine high-efficiency jet grouting device, which comprises a vehicle body and a supporting plate fixedly connected to the upper end face of the vehicle body, the rear end face of the supporting plate is hingedly connected with a mounting plate, the rear end face of the mounting plate is sequentially provided from left to right with a wet scraping and spraying integrated mechanism for scraping and spraying wet on the inner wall of the mine, a self-adjusting grouting mechanism for grouting on the inner wall of the mine, and a smoothing mechanism for smoothing the concrete sprayed on the inner wall of the mine, a T-shaped spraying head communicated with the rear part of the supporting pipe, and a flow control unit communicated between the supporting pipe and the conveying pipe, the present application can automatically adjust the grouting amount according to different widths of cracks by controlling the intermittent change between the plug and the conical blocking ring when the rollers in the self-adjusting grouting mechanism meet cracks with different widths, so that different cracks can be fully filled, and the spraying quality of the mine wall is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine tunnel inner wall reinforcement, in particular to a mine high-efficiency jet grouting device. BACKGROUND

[0002] A mine refers to a shaft or tunnel excavated for accessing underground ore deposits, from which underground mineral resources such as ores, gems, or coal can be extracted by digging or other mining methods. Sometimes, the inclined shafts, vertical shafts, adits, etc. developed underground in mines are also referred to as mines. During the excavation process, cracks may appear on the inner wall of the mine, and grouting equipment is needed to spray concrete grout onto the inner wall of the mine to fill and block the cracks, and also to reinforce the strength of the inner wall of the mine.

[0003] However, the existing mine grouting equipment has a fixed amount of grout sprayed when spraying concrete grout on the inner wall of the mine, but the crack opening volume on the inner wall of the mine is not consistent, which can easily cause the cement grout to be sprayed too much and fall off the inner wall of the mine during the spraying process, resulting in waste. For larger cracks, the spraying amount is not enough, which affects the reinforcement strength of the inner wall of the mine.

[0004] In addition, before spraying cement grout on the inner wall of the mine, some loose loose stones on the inner wall need to be scraped off to ensure that the cement grout can adhere firmly to the wall, and water needs to be sprayed on the dry wall to keep it in a wet state. The existing processing method first removes loose stones by scraping equipment, and then manually sprays water on the wall using a water pipe, which has low processing efficiency and the amount of water sprayed is not easy to control, which can easily cause some areas to be sprayed too much or too little, thereby affecting the firmness of the cement grout adhering to the wall. SUMMARY

[0005] The present application provides a mine high-efficiency jet grouting device, which solves the technical problem that the amount of grout is always fixed when spraying cement grout, which can easily cause some areas to be sprayed too much, resulting in waste, and another part of the area to be sprayed too little, resulting in incomplete filling, and the wall needs to be treated with loose stones and sprayed with water to keep it wet, which has low processing efficiency.

[0006] The application provides a high-efficiency injection grouting device for mines, which comprises a vehicle body and a support plate fixedly connected to the upper end face of the vehicle body, a mounting plate is hingedly connected to the rear end face of the support plate, a wet scraping integrated mechanism for scraping and spraying the inner wall of the mine, a self-adjusting injection mechanism for coating the inner wall of the mine and a smoothing mechanism for smoothing the concrete coating on the inner wall of the mine are sequentially mounted on the rear end face of the mounting plate from left to right, the self-adjusting injection mechanism comprises a vertical plate fixedly connected to the rear end face of the mounting plate, a plurality of injection assemblies equidistantly mounted on the rear part of the vertical plate and a delivery pipe fixedly connected to the rear part of the vertical plate and communicated with the injection assemblies, the injection assembly comprises a Y-shaped frame fixedly connected to the rear end face of the vertical plate in a symmetrical manner, a sliding frame fixedly connected to the rear end of the Y-shaped frame, a rotating shaft slidingly arranged between the two sliding frames, a roller fixedly connected to the outside of the rotating shaft in a symmetrical manner, a branch pipe rotatably mounted on the outside of the rotating shaft, a T-shaped spraying head communicated with the rear part of the branch pipe and a flow control unit communicated between the branch pipe and the delivery pipe.

[0007] In a possible implementation manner, the wet scraping integrated mechanism comprises sliding rods fixedly connected to the rear end face of the mounting plate in a left-right symmetrical manner through fixing blocks, sliding strips are slidingly connected to the outside of the sliding rods, the sliding strips and the rear part of the mounting plate are fixedly connected with a reciprocating electric telescopic rod through a connecting block, rotating shafts are rotatably connected to the rear parts of the opposite sides of the two sliding strips, fan-shaped rolling discs are fixedly connected to the outside of the rotating shafts, scraping plates are fixedly connected to the upper parts of the rotating shafts, elastic telescopic pipes are fixedly connected to the rear end face of the mounting plate and located between the two sliding rods, strip-shaped frames are fixedly connected to the lower segments of the sliding strips, a flexible pipe communicated with the upper end of the elastic telescopic pipe is fixedly connected between the two strip-shaped frames through a connecting plate, a water spraying head is communicated with the rear end of the flexible pipe, inverted U-shaped plates are fixedly connected to the lower parts of the rotating shafts, rotating rods are rotatably connected to the opposite sides of the inverted U-shaped plates, rotating wheels and winding drums are fixedly connected to the outside of the rotating rods in sequence, and the winding drums and the strip-shaped frames are jointly provided with an extrusion assembly used for cooperating with the flexible pipe.

[0008] In a possible implementation manner, the extrusion assembly comprises sliding blocks slidingly connected to the inside of the strip-shaped frames, limit springs are fixedly connected to the inner walls of the strip-shaped frames and the sliding blocks, a rectangular ring sleeved on the outside of the flexible pipe is fixedly connected to the rear end face of the rectangular ring through a fixed rod, lugs are fixedly connected to the rear end face of the rectangular ring in a symmetrical manner, the lugs are hingedly connected to extrusion plates abutting on the outside of the flexible pipe through rotating columns and torsional springs, the extrusion plates are inclined to one side of the flexible pipe from front to back, elastic rubber columns are fixedly connected to the rear part of the extrusion plates, a pull rope is wound on the outside of the winding drum, and one end of the pull rope away from the winding drum is fixedly connected to the side of the sliding block through a protruding block.

[0009] In a possible implementation, the flow control unit comprises a circular pipe connected to the front of the branch pipe, a pipe barrel is connected to the rear of the pipe, the circular pipe is slidingly connected inside the pipe barrel, a conical stop ring is fixedly connected to the inner wall of the pipe barrel, and a plug head for cooperating with the conical stop ring is fixedly connected to the front end of the circular pipe through a connecting column.

[0010] In a possible implementation, a sliding block is slidingly connected inside the sliding frame, a top spring is fixedly connected to the sliding block and the inner wall of the sliding frame, and a limiting block for limiting the sliding block is fixedly connected to the rear cavity wall of the sliding frame.

[0011] In a possible implementation, the smoothing mechanism comprises a plate body fixedly connected to the rear end face of the mounting plate through a supporting block, an arc-shaped elastic plate is fixedly connected to the rear end face of the plate body, a plurality of top springs are equidistantly fixedly connected between the arc-shaped elastic plate and the plate body, a plurality of split pieces are equidistantly fixedly connected to the rear left side of the arc-shaped elastic plate, and a receiving plate is fixedly connected to the lower end face of the plate body.

[0012] In a possible implementation, guide plates are fixedly connected to the left and right sides of the side of the scraper close to the inverted U-shaped plate, and the two guide plates are arranged in a V shape.

[0013] In a possible implementation, a plurality of grouting assemblies are longitudinally and equidistantly arranged, and two rows of grouting assemblies are arranged in a staggered manner.

[0014] From the above technical solutions, the present application has the following advantages:

[0015] In the present application, the displacement of the roller when encountering cracks of different widths is different, which drives the stop block to move backward, changes the gap between the plug head and the conical stop ring, and automatically and real-time adjusts the spraying amount of the cement slurry according to cracks of different widths, so that the well wall can be uniformly coated and covered by the cement slurry, and the cracks can be filled in place, thereby effectively reinforcing the well wall.

[0016] In the present application, the scraper and the extrusion assembly are sequentially driven to move by the fan-shaped rolling disc during the up-and-down movement on the well wall, which organically combines the removal of loose gravel and the wetting of the well wall surface together, thereby effectively improving the processing efficiency of the well wall, the water in the flexible pipe is uniformly and slowly extruded by the movement of the rectangular ring outside the flexible pipe and the mutual combination of the two inclined extrusion plates, and then sprayed onto the well wall, thereby ensuring that the well wall is uniformly and sufficiently wetted, and the cement slurry sprayed on the well wall is more firmly attached.

[0017] The cement slurry sprayed on the well wall is cut by the several cutting pieces arranged on the arc-shaped elastic plate, so that the air mixed in the cement slurry is discharged, and the cement slurry can be firmly attached to the well wall. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0019] Figure 1 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0020] Figure 2 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0021] Figure 3 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0022] Figure 4 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0023] Figure 5 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0024] Figure 6 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0025] Figure 7 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0026] Figure 8 The schematic structural diagram of the high-efficiency mine jet grouting device is provided.

[0027] Among the above drawings, the following reference signs are included:

[0028] 1, car body; 2, support plate; 3, mounting plate; 4, wet scraping integrated mechanism; 41, sliding rod; 42, sliding bar; 43, reciprocating electric telescopic rod; 44, rotating shaft; 45, fan-shaped rolling disc; 46, scraper; 47, elastic telescopic tube; 48, strip frame; 49, flexible tube; 410, water spraying head; 411, inverted U-shaped plate; 412, rotating wheel; 413, winding drum; 4a, extrusion assembly; 4a1, sliding block; 4a2, limiting spring; 4a3, rectangular ring; 4a4, extrusion plate; 4a5, pull rope; 5, self-adjusting grouting mechanism; 51, vertical plate; 52, grouting assembly; 521, Y-shaped frame; 522, sliding frame; 523, roller; 524, branch pipe; 525, T-shaped spraying head; 526, flow control unit; 5261, circular pipe; 5262, pipe barrel; 5263, conical blocking ring; 5264, plug; 53, conveying pipe; 6, troweling mechanism; 61, plate body; 62, arc-shaped elastic plate; 63, slitting piece; 64, material receiving plate; 7, top spring; 8, limiting stopper. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0030] Referring to Figure 1 and Figure 2 , the present application provides a technical solution: a mine high-efficiency jet grouting device, comprising a car body 1 and a support plate 2 fixedly connected to the end face of the car body 1, the rear end face of the support plate 2 is hingedly connected with a mounting plate 3, and the rear end face of the mounting plate 3 is sequentially provided from left to right with a wet scraping integrated mechanism 4 for scraping and spraying wetting on the inner wall of the mine, a self-adjusting grouting mechanism 5 for coating mortar on the inner wall of the mine, and a troweling mechanism 6 for troweling the concrete mortar sprayed on the inner wall of the mine.

[0031] Referring to Figure 2 , Figure 5 and Figure 6In the embodiment, the wet scraping integrated mechanism 4 comprises slide rods 41 fixedly connected to the rear end surface of the mounting plate 3 in left-right symmetry, slide strips 42 slidably connected to the outside of the slide rods 41, a reciprocating electric telescopic rod 43 fixedly connected to the rear part of the mounting plate 3 through a connecting block together with the slide strips 42, rotating shafts 44 rotatably connected to the rear parts of the two slide strips 42, fan-shaped rolling discs 45 fixedly connected to the outside of the rotating shafts 44, scraper plates 46 fixedly connected to the upper parts of the rotating shafts 44, guide plates fixedly connected to the sides of the scraper plates 46 close to the inverted U-shaped plates 411 in left-right symmetry, wherein the two guide plates are arranged in a V shape, an elastic telescopic tube 47 fixedly connected to the rear end surface of the mounting plate 3 between the two slide rods 41, strip frames 48 fixedly connected to the lower segments of the slide strips 42, a flexible tube 49 fixedly connected to the elastic telescopic tube 47 through a connecting plate between the two strip frames 48, a water spraying head 410 communicated with the rear end of the flexible tube 49, inverted U-shaped plates 411 fixedly connected to the lower parts of the rotating shafts 44, rotating rods rotatably connected to the sides of the inverted U-shaped plates 411 away from each other, rotating wheels 412 and winding drums 413 fixedly connected to the outside of the rotating rods in sequence, and an extrusion assembly 4a for cooperating with the flexible tube 49, which is jointly installed on the winding drum 413 and the strip frame 48.

[0032] Please refer to Figure 7 The extrusion assembly 4a comprises slide blocks 4a1 slidably connected to the inside of the strip frame 48, limit springs 4a2 fixedly connected to the inner wall of the strip frame 48 together with the slide blocks 4a1, a rectangular ring 4a3 fixedly connected to the rear end surface of the rectangular ring 4a3 in upper-lower symmetry, wherein the rectangular ring 4a3 is fixedly connected to the rotating rods together with the slide blocks 4a1 through a fixed rod, lugs fixedly connected to the rear end surface of the rectangular ring 4a3 in upper-lower symmetry, extrusion plates 4a4 hinged to the outside of the flexible tube 49 through the rotating columns and torsional springs together with the lugs, wherein the extrusion plates 4a4 are inclined to the side close to the flexible tube 49 from front to back, elastic rubber columns fixedly connected to the rear part of the extrusion plates 4a4, and a pull rope 4a5 wound around the outside of the winding drum 413, wherein one end of the pull rope 4a5 away from the winding drum 413 is fixedly connected to the side of the slide block 4a1 through a lug.

[0033] According to the inclination angle of the inner wall of the mine, the mounting plate 3 is rotated to make the inclination angle of the mounting plate 3 consistent with the inclination angle of the wall, water is introduced into the elastic telescopic tube 47, the water enters the flexible tube 49 from the spring telescopic tube, then the vehicle body 1 is intermittently moved along the wall by an operator manually or a driving device outside, and the wet scraping integrated mechanism 4 is controlled to operate when the vehicle body 1 stops on the wall.

[0034] ①The control reciprocating electric telescopic rod 43 drives the slide bar 42 to ascend along the slide rod 41, the slide bar 42 drives the fan-shaped rolling disc 45 to rotate on the well wall, and then drives the rotating shaft 44 to rotate, and the rotating shaft 44 drives the scraper 46 to move until the scraper 46 abuts against the well wall, then the slide bar 42 drives the scraper 46 to ascend and move on the well wall from bottom to top, and the loose stones on the well wall are scraped off, and the fallen stones are pushed to the left and right sides of the scraper 46 under the action of the V-shaped guide plate and then fall out, until the scraper 46 ascends to the upper end of the slide rod 41, and the loose stones on the well wall at the position of the scraper 46 are removed.

[0035] ②Subsequently, the reciprocating electric telescopic rod 43 drives the slide bar 42 to descend, the slide bar 42 drives the fan-shaped rolling disc 45 to roll on the well wall, so that the scraper 46 is separated from the well wall, and the rotating wheel 412 abuts against the well wall, then the slide bar 42 drives the rotating wheel 412 to descend and roll on the well wall, and then drives the winding drum 413 to rotate, the winding drum 413 winds and stores the pull rope 4a5, the pull rope 4a5 then drives the sliding block 4a1 to move backward, the sliding block 4a1 then drives the rectangular ring 4a3 to move backward through the fixed rod, the rectangular ring 4a3 drives the two inclined extrusion plates 4a4 to move backward synchronously, since the extrusion plates 4a4 are inclined to the side close to the flexible pipe 49 from front to back, the rear end of the extrusion plates 4a4 moves close to the axis of the flexible pipe 49 during the backward movement, that is, the rear part of the two extrusion plates 4a4 gradually moves backward to extrude the flexible pipe 49, and the water in the flexible pipe 49 is gradually extruded out from front to back along the flexible pipe 49, and then the water is atomized and sprayed to the well wall through the water spraying head 410, so that the well wall is wetted, thereby ensuring the consistency of the moisture of the well wall, until the sliding block 4a1 moves to the rear end of the strip frame 48.

[0036] Then the reciprocating electric telescopic rod 43 drives the slide bar 42 to ascend again to repeat the steps in ①, and the extrusion plates 4a4 that move to the rear part of the flexible pipe 49 in ② are reset. The sliding block 4a1 is pulled backward under the reset of the limiting spring 4a2, and then the sliding block 4a1 drives the extrusion plates 4a4 to move forward through the fixed rod and the rectangular ring 4a3, at this time, the two moving extrusion plates 4a4 stop extruding the flexible pipe 49, so that the flexible pipe 49 is filled with water again; through the reciprocating cycle of the steps in ① and ②, the loose stones on the well wall can be removed and the well wall can be wetted, thereby improving the processing efficiency of the well wall, ensuring that the well wall can be uniformly wetted, and ensuring the firmness of the cement mortar after spraying.

[0037] Please refer to Figure 2 , Figure 3 and Figure 4In the embodiment, the self-adjusting grouting mechanism 5 comprises: a vertical plate 51 fixedly connected to the rear end surface of the mounting plate 3, a plurality of grouting assemblies 52 equidistantly mounted on the rear of the vertical plate 51, and a conveying pipe 53 fixedly connected to the rear of the vertical plate 51 and communicating with the grouting assemblies 52. The grouting assemblies 52 are longitudinally equidistantly arranged and are arranged in two rows in a staggered manner, so that the well wall through which the grouting assemblies 52 pass can be fully coated during movement, and the situation of missing spraying can be avoided. The grouting assembly 52 comprises: a Y-shaped frame 521 fixedly connected to the rear end surface of the vertical plate 51 in a symmetrical manner, a sliding frame 522 fixedly connected to the rear end of the Y-shaped frame 521, a rotating shaft slidingly arranged between the two sliding frames 522, a roller 523 fixedly connected to the outside of the rotating shaft in a symmetrical manner, a branch pipe 524 rotatably mounted on the outside of the rotating shaft, a T-shaped spraying head 525 communicating with the rear of the branch pipe 524, and a flow control unit 526 communicating between the branch pipe 524 and the conveying pipe 53. The outside of the rotating shaft is rotatably connected to a cross rod through a rotating ring, the branch pipe 524 is fixedly connected to the end of the cross rod, the flow control unit 526 comprises a circular pipe 5261 communicating with the front of the branch pipe 524, a pipe barrel 5262 communicating with the rear of the conveying pipe 53, the circular pipe 5261 is slidingly connected to the inside of the pipe barrel 5262, a conical stop ring 5263 is fixedly connected to the inner wall of the pipe barrel 5262, a plug 5264 for cooperating with the conical stop ring 5263 is fixedly connected to the front end of the circular pipe 5261 through a connecting column, a sliding block is slidingly connected to the inside of the sliding frame 522, a top spring 7 is fixedly connected to the sliding block and the inner wall of the sliding frame 522, a limiting block 8 for limiting the sliding block is fixedly connected to the rear cavity wall of the sliding frame 522, and the rotating shaft is rotatably connected between the two sliding blocks.

[0038] The vehicle body 1 moves in the mine to drive the self-adjusting grouting mechanism 5 to operate, a container storing cement slurry outside is connected with the delivery pipe 53, the cement slurry enters the delivery pipe 53, then enters the pipe barrel 5262, enters the branch pipe 524 through the circular pipe 5261, and is finally sprayed from the T-shaped spraying head 525. The roller 523 rolls on the wall of the well with the movement of the vehicle body 1, the roller 523 is in contact with the wall of the well, the sliding block is located in the front half of the sliding frame 522 in the working state, the top spring 7 is in the compressed state, and there is still a gap between the plug 5264 and the conical blocking ring 5263 at this time. When moving on the relatively flat place of the wall of the well, the T-shaped spraying head 525 uniformly and slowly sprays the cement slurry on the wall of the well, when encountering a crack, the roller 523 moves backward under the pressure of the top spring 7 and enters the crack, until the roller 523 abuts against the crack edge, the roller 523 moves backward to drive the shaft to move backward, the shaft then drives the circular pipe 5261 to move backward through the branch pipe 524, the circular pipe 5261 then drives the plug 5264 to move backward, so that the gap between the plug 5264 and the conical blocking ring 5263 is increased, so that the flow of the cement slurry entering the circular pipe 5261 is increased, and the cement slurry sprayed from the T-shaped spraying head 525 is increased, so that the crack is quickly filled with the cement slurry. The larger the crack, the greater the displacement of the roller 523, the greater the gap between the plug 5264 and the conical blocking ring 5263, and the more the amount of cement slurry sprayed from the T-shaped spraying head 525, in the opposite direction, the less the amount of spraying from the T-shaped spraying head 525, so that the spraying amount of the cement slurry can be automatically adjusted according to the size of the crack, so that the wall of the well can be uniformly covered, and in the process of the roller 523 moving backward into the crack, when the width of the crack is greater than the diameter of the roller, the roller 523 moves backward to drive the sliding block to move backward and abut against the limiting block 8, at this time, the spraying amount of the T-shaped spraying head 525 reaches the maximum amount, the roller 523 stops moving backward, so that the roller 523 can be prevented from sinking into the crack and cannot be moved out.

[0039] Please refer to Figure 2 and Figure 8 In the embodiment, the smoothing mechanism 6 comprises a plate body 61 fixedly connected to the rear end face of the mounting plate 3 through a support block, the rear end face of the plate body 61 is fixedly connected with an arc-shaped elastic plate 62, a plurality of top springs are fixedly connected between the arc-shaped elastic plate 62 and the plate body 61 at equal intervals, a plurality of cutting pieces 63 are fixedly connected to the left side of the rear part of the arc-shaped elastic plate 62 at equal intervals, and a receiving plate 64 is fixedly connected to the lower end face of the plate body 61.

[0040] The vehicle body 1 moves while driving the smoothing mechanism 6 to move on the surface of the wall of the well, the cement slurry sprayed on the wall of the well is cut by the plurality of cutting pieces 63 arranged at equal intervals, so that the gas mixed in the cement slurry during the spraying process can be discharged, then the arc-shaped elastic plate 62 flattens the cement slurry to tightly adhere to the wall of the well, and the receiving plate 64 collects part of the cement slurry falling during the smoothing process.

[0041] In operation, first, the vehicle body 1 is moved into the mine, then the inclination angle of the mounting plate 3 is synchronously adjusted according to the inclination of the wall, so that the mounting plate 3 is kept parallel to the wall, then the vehicle body 1 is moved along the wall by an external driving device or manually, the scraping and wetting integrated mechanism 4 is first operated, when the reciprocating electric telescopic rod 43 drives the slide bar 42 to rise, the scraper 46 contacts the wall to remove loose stones, when the slide bar 42 descends, the extrusion assembly 4a operates to slowly extrude water in the flexible pipe 49 to uniformly spray on the wall, and loose stones on the wall are removed and wetted, then the self-adjusting grouting mechanism 5 operates, the rear moving amount of the roller 523 is automatically changed according to the size of the crack on the wall, and then the spraying amount of the cement slurry is adjusted, so that the self-adaptive adjustment can be performed according to cracks of different sizes, and it is ensured that the wall can be uniformly covered with the cement slurry, finally, the several equidistantly arranged split pieces 63 in the smoothing mechanism 6 divide the sprayed cement slurry, so that the gas mixed in the cement slurry in the spraying process can be exhausted, then the arc-shaped elastic plate 62 smoothes the cement slurry, so that the cement slurry can be firmly attached to the wall.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] In addition, the terms "first", "second", "one", "two" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0044] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] The embodiments of the specific implementation are the preferred embodiments of the application, not limited by the protection scope of the application, therefore, any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A high-efficiency jet grouting device for mine, comprising a vehicle body (1) and a support plate (2) fixedly connected to the end surface of the vehicle body (1), characterized in that: The rear end surface of the branch plate (2) is hinged with a mounting plate (3) through a hinge, and the rear end surface of the mounting plate (3) is sequentially provided from left to right with a wet scraping integrated mechanism (4) for scraping and spraying wetting on the inner wall of the mine, a self-adjusting grouting mechanism (5) for grouting on the inner wall of the mine, and a troweling mechanism (6) for troweling the concrete grout sprayed on the inner wall of the mine; The self-adjusting grouting mechanism (5) comprises: A vertical plate (51) fixedly connected to the rear end surface of the mounting plate (3), a plurality of grouting assemblies (52) equidistantly mounted on the rear of the vertical plate (51), and a delivery pipe (53) fixedly connected to the rear of the vertical plate (51) and communicating with the grouting assemblies (52); The grouting assembly (52) comprises: A Y-shaped frame (521) fixedly connected to the rear end surface of the vertical plate (51) symmetrically up and down, a sliding frame (522) fixedly connected to the rear end of the Y-shaped frame (521), a rotating shaft slidingly arranged between the two sliding frames (522), a roller (523) fixedly connected to the outside of the rotating shaft symmetrically up and down, a branch pipe (524) rotatably installed on the outside of the rotating shaft, a T-shaped spraying head (525) communicating with the rear of the branch pipe (524), and a flow control unit (526) communicating between the branch pipe (524) and the delivery pipe (53).

2. The high-efficiency jet grouting device for mine of claim 1, characterized in that: The wet scraping integrated mechanism (4) comprises a sliding rod (41) fixedly connected to the rear end surface of the mounting plate (3) symmetrically left and right through a fixed block, a sliding bar (42) slidingly connected to the outside of the sliding rod (41), a reciprocating electric telescopic rod (43) fixedly connected to the rear of the mounting plate (3) and the sliding bars (42) through a connecting block, a rotating shaft (44) rotatably connected to the rear of the opposite sides of the two sliding bars (42), a fan-shaped rolling disc (45) fixedly connected to the outside of the rotating shaft (44), a scraper (46) fixedly connected to the upper part of the rotating shaft (44), an elastic telescopic pipe (47) fixedly connected to the rear end surface of the mounting plate (3) and located between the two sliding rods (41), a strip-shaped frame (48) fixedly connected to the lower end surface of each sliding bar (42), a flexible pipe (49) fixedly connected to the upper end of the elastic telescopic pipe (47) through a connecting plate between the two strip-shaped frames (48), a water spraying head (410) communicating with the rear end of the flexible pipe (49), an inverted U-shaped plate (411) fixedly connected to the lower part of the rotating shaft (44), a rotating rod rotatably connected to the opposite sides of the inverted U-shaped plate (411), a rotating wheel (412) and a winding drum (413) fixedly connected to the outside of the rotating rod in sequence, and an extrusion assembly (4a) for cooperating with the flexible pipe (49) mounted on the winding drum (413) and the strip-shaped frame (48).

3. The high-efficiency jet grouting device for mine of claim 2, characterized in that: The extrusion assembly (4a) comprises sliding blocks (4a1) slidingly connected inside the strip-shaped frame (48), the sliding blocks (4a1) are fixedly connected with the inner wall of the strip-shaped frame (48) to jointly fix a limiting spring (4a2), two opposite sides of the sliding blocks (4a1) are fixedly connected with a rectangular ring (4a3) sleeved outside the flexible pipe (49) through a fixing rod, the rectangular ring (4a3) is fixedly connected with lugs on the front and back end faces and symmetrically, the lugs are hingedly connected with extrusion plates (4a4) attached outside the flexible pipe (49) through a rotating column and a torsional spring, the extrusion plates (4a4) are inclined to one side of the flexible pipe (49) from front to back, the rear part of the extrusion plates (4a4) is fixedly connected with an elastic rubber column, a pull rope (4a5) is wound outside the winding drum (413), and one end of the pull rope (4a5) away from the winding drum (413) is fixedly connected to the side of the sliding block (4a1) through a protruding block.

4. The high-efficiency jet grouting device for mine of claim 1, characterized in that: The flow control unit (526) comprises a circular pipe (5261) communicated at the front part of the branch pipe (524), and a pipe cylinder (5262) communicated at the rear part of the conveying pipe (53), the circular pipe (5261) is slidingly connected inside the pipe cylinder (5262), the pipe cylinder (5262) is fixedly connected with a conical blocking ring (5263) on the inner wall, and the front end of the circular pipe (5261) is fixedly connected with a plug (5264) for cooperating with the conical blocking ring (5263) through a connecting column.

5. The high-efficiency jet grouting device for mine of claim 1, characterized in that: The sliding block is slidingly connected inside the sliding frame (522), and the sliding block and the inner wall of the sliding frame (522) are fixedly connected with a top spring (7) in common.

6. The high-efficiency jet grouting device for mine of claim 1, characterized in that: The smoothing mechanism (6) comprises a plate body (61) fixedly connected to the rear end face of the mounting plate (3) through a supporting block, an arc-shaped elastic plate (62) fixedly connected to the rear end face of the plate body (61), a plurality of jacking springs fixedly connected between the arc-shaped elastic plate (62) and the plate body (61) at equal intervals in common, a plurality of split pieces (63) fixedly connected to the left side of the rear part of the arc-shaped elastic plate (62) at equal intervals, and a receiving plate (64) fixedly connected to the lower end face of the plate body (61).

7. The high-efficiency jet grouting device for mine of claim 2, characterized in that: The scraping plate (46) is fixedly connected with guide plates on the left and right sides close to the inverted U-shaped plate (411), and the two guide plates are arranged in a V shape.

8. The high-efficiency jet grouting device for mine of claim 1, characterized in that: The grouting assembly (52) is provided in two groups on the left and right sides, each group of grouting assemblies (52) is longitudinally provided with a plurality of grouting assemblies (52) at equal intervals, and the grouting assemblies (52) in the left and right groups are arranged in an up-and-down staggered manner.

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