A kind of along empty roadway filling auxiliary device
The mechanical mixing system of the goaf-staying roadway filling auxiliary device solved the problem of concrete solidification during long-term filling, maintained the activity of the filling material, and ensured the stability of the roadway.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TECH DEV OF SHANXI COAL IMPORT & EXPORT GROUP
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
AI Technical Summary
Existing filling materials, such as concrete, tend to solidify during long-term filling processes, reducing the durability of the filling material and affecting the stability of the roadway.
An auxiliary device for filling along the goaf is adopted, including a base, a mixing tank, a support, a control cabinet and a servo motor. The mixing components are used to mix the concrete raw materials through mechanical movement, so as to maintain their activity and prevent solidification.
It effectively prevents concrete from solidifying during long-term filling, maintains the activity of the filling material, and ensures the stability and continuous use of the tunnel.
Smart Images

Figure CN224396533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mine goaf retention technology, and in particular to an auxiliary device for filling goaf retention. Background Technology
[0002] Goaf retention is a key technology in coal mining that preserves adjacent roadways after the working face has been mined as roadways for the next mining section to achieve efficient resource recovery. Its core is to support the roof by filling the roadway with supporting structures such as paste filling bodies and concrete walls to control roadway deformation.
[0003] After the coal face is mined, the rock strata above the goaf will move, deform and collapse, causing the surrounding stress to redistribute. The roadway will be subjected to strong compression from the goaf side, and backfill material is needed as a support structure to offset the pressure of the goaf rock strata, prevent the roadway roof from sinking, and maintain the cross-sectional dimensions and stability of the roadway. However, existing backfill materials such as concrete are prone to solidification during long-term backfilling, which reduces the sustainability of the backfill material.
[0004] To address this issue, an auxiliary device for filling roadways along the goaf is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an auxiliary device for filling along the goaf, which aims to improve the existing technology where filling materials such as concrete are prone to solidification during long-term filling, thus reducing the sustainability of the filling material.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An auxiliary device for filling goaf-side retaining tunnels includes a base, a mixing tank placed on top of the base, a bracket fixedly connected to the back end of the base, a control cabinet mounted on the top right side of the bracket, and a connecting mechanism fixedly connected to the top front end of the bracket. The connecting mechanism includes a connecting box, a T-shaped sleeve, a support plate, and a servo motor. The connecting box is fixedly connected to the top front end of the bracket, the T-shaped sleeve is slidably connected to the front end of the connecting box, the support plate is fixedly connected to the front end of the T-shaped sleeve, the servo motor is fixedly connected to the top of the support plate, and a mixing assembly is fixedly connected to the output end of the servo motor through the bottom of the support plate.
[0008] The above technical solution involves pouring concrete raw materials into the mixing drum, which then moves as a whole with the base, support, and control cabinet into the mine. The mechanical movement inside the connecting box is then activated, causing the T-shaped sleeve plate to move up and down under force. This movement of the T-shaped sleeve plate drives the pallet and servo motor to move synchronously. During this movement, the servo motor starts working, stirring the raw materials inside the mixing drum to maintain their activity, thus preventing the unused raw materials from solidifying during long-term filling processes.
[0009] As a further description of the above technical solution: the stirring assembly includes a stirring rod and a stirring impeller. The output end of the servo motor is fixedly connected to the stirring rod through the bottom of the tray. The bottom of the stirring rod is fixedly connected to the stirring impeller through the interior of the stirring tank. Movable mechanisms are fixedly connected to the left and right sides of the top of the inner wall of the connecting box.
[0010] Through the above technical solution, the setting of the stirring component enables the servo motor to drive the stirring rod to rotate clockwise during operation. The rotation of the stirring rod drives the stirring impeller to rotate, and the rotation of the stirring impeller stirs and mixes the raw materials inside the mixing tank, keeping them active.
[0011] As a further description of the above technical solution: the movable mechanism includes an electric telescopic rod, a vertical rod, and a sliding plate. The electric telescopic rod is fixedly connected to the left and right sides of the top of the inner wall of the connecting box. The vertical rod is fixedly connected to the top of the inner wall of the connecting box and between the electric telescopic rods. The back end of the T-shaped sleeve plate extends into the interior of the connecting box and is fitted onto the surface of the vertical rod. The sliding plate is fixedly connected to the bottom of the T-shaped sleeve plate and to the surface of the vertical rod. The bottom of the electric telescopic rod is fixedly connected to the top of the sliding plate.
[0012] Through the above technical solution, the setting of the active mechanism enables the electric telescopic rod to push the skateboard up and down, and the movement of the skateboard causes the T-shaped sleeve to move vertically on the surface of the vertical rod in sync, so as to determine the direction of movement of the T-shaped sleeve and avoid the phenomenon of swaying during the movement.
[0013] As a further description of the above technical solution: a sliding groove is provided at the front end of the connecting box and at the position corresponding to the T-shaped sleeve plate, and the sliding groove is used in conjunction with the T-shaped sleeve plate.
[0014] The above technical solution, through the setting of the slide groove, can assist the T-shaped sleeve plate in working, and at the same time play a limiting role, preventing the T-shaped sleeve plate from tilting during movement.
[0015] As a further description of the above technical solution: a balance bar is fixedly connected to the left and right sides of the bottom front end of the connecting box, and the top of the balance bar passes through the top of the T-shaped sleeve plate and is fixedly connected to the top of the connecting box.
[0016] Through the above technical solution, the setting of the balance bar can assist the T-shaped sleeve plate in its work and play a role in force balance, thus avoiding the phenomenon of tilting and displacement of the T-shaped sleeve plate due to excessive load.
[0017] As a further description of the above technical solution: a fixing seat is fixedly sleeved at the bottom of the vertical rod, and the left and right sides of the fixing seat are fixedly connected to the inside of the connecting box.
[0018] Through the above technical solution, the setting of the fixing seat can assist the vertical rod in its work and at the same time play a fixing role, avoiding the phenomenon that the frequent mechanical movement of the vertical rod surface is prone to shaking.
[0019] As a further description of the above technical solution: support feet are fixedly connected to the four corners of the bottom of the base, and the support feet are used in conjunction with the base.
[0020] Through the above technical solution, the support feet can assist the base in its work and provide support and balance, thus preventing tilting caused by uneven contact surfaces of the base.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the combination of a connecting box, a T-shaped sleeve plate, a pallet, and a servo motor allows raw materials to be poured into the mixing tank. Then, the base, support, control cabinet, and mixing tank are moved as a whole into the mine for filling operations. To ensure the activity of the raw materials, the mechanical movement inside the connecting box is activated, causing the T-shaped sleeve plate to move up and down under force. The movement of the T-shaped sleeve plate drives the pallet and servo motor to move synchronously. During the movement of the servo motor, it starts working to stir and mix the raw materials inside the mixing tank, thereby maintaining the activity of the filling raw materials and preventing the solidification of the raw materials inside the mixing tank during long-term filling.
[0023] 2. In this utility model, the setting of the stirring rod and the stirring impeller enables the servo motor to drive the stirring rod to rotate clockwise. The rotation of the stirring rod drives the stirring impeller to rotate. The rotation of the stirring impeller stirs and mixes the raw materials inside the mixing tank to maintain their activity. In addition, the up and down movement of the servo motor drives the stirring rod and the stirring impeller to stir the inside of the mixing tank evenly, so as to achieve thorough stirring of the raw materials inside the mixing tank and avoid the phenomenon of solidification of the upper and lower layers of raw materials due to excessive material inside the mixing tank. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the structural connecting box, T-shaped sleeve plate, and tray of this utility model;
[0026] Figure 3 This is a schematic diagram of the electric telescopic pole, vertical pole, and sliding plate of this utility model.
[0027] Figure 4 This is a schematic diagram of the stirring rod and stirring impeller of this utility model.
[0028] Legend:
[0029] 1. Base; 2. Mixing tank; 3. Bracket; 4. Control cabinet; 5. Connecting mechanism; 51. Connecting box; 52. T-shaped sleeve; 53. Support plate; 54. Servo motor; 6. Mixing assembly; 61. Mixing rod; 62. Mixing impeller; 7. Movable mechanism; 71. Electric telescopic rod; 72. Vertical rod; 73. Slide plate; 8. Slide groove; 9. Balance bar; 10. Fixed seat; 11. Support foot. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1-4 This utility model provides an embodiment of an auxiliary device for filling goaf-side tunnels, comprising a base 1, a mixing tank 2 placed on top of the base 1, a bracket 3 fixedly connected to the back end of the base 1, a control cabinet 4 disposed on the top right side of the bracket 3, and a connecting mechanism 5 fixedly connected to the top front end of the bracket 3. The connecting mechanism 5 includes a connecting box 51, a T-shaped sleeve 52, a support plate 53, and a servo motor 54. The connecting box 51 is fixedly connected to the top front end of the bracket 3, the T-shaped sleeve 52 is slidably connected to the front end of the connecting box 51, the support plate 53 is fixedly connected to the front end of the T-shaped sleeve 52, and the servo motor is fixedly connected to the top of the support plate 53. 54. The output end of the servo motor 54 is fixedly connected to the mixing component 6 through the bottom of the pallet 53. During use, concrete raw materials are poured into the mixing drum 2, and the mixing drum 2 moves as a whole with the base 1, bracket 3 and control cabinet 4 into the mine. Then, the mechanical movement inside the connecting box 51 is started, so that the T-shaped sleeve 52 is subjected to force and moves up and down. The movement of the T-shaped sleeve 52 drives the pallet 53 and the servo motor 54 to move synchronously. During the movement, the servo motor 54 starts working to stir the raw materials inside the mixing drum 2 to maintain their activity, so as to prevent the raw materials from solidifying if not used up during long-term filling.
[0032] Reference Figure 1-4The stirring assembly 6 includes a stirring rod 61 and a stirring impeller 62. The output end of the servo motor 54 is fixedly connected to the stirring rod 61 through the bottom of the support plate 53. The bottom of the stirring rod 61 extends into the interior of the mixing tank 2 and is fixedly connected to the stirring impeller 62. Movable mechanisms 7 are fixedly connected to the left and right sides of the top of the inner wall of the connecting box 51. Through the arrangement of the stirring assembly 6, the servo motor 54 can drive the stirring rod 61 to rotate clockwise during operation. The rotation of the stirring rod 61 drives the stirring impeller 62 to rotate. The rotation of the stirring impeller 62 stirs and mixes the raw materials inside the mixing tank 2, keeping them active. The movable mechanism 7 includes an electric telescopic rod 71, a vertical rod 72, and a sliding plate 73. The electric telescopic rod 71 is fixedly connected to the left and right sides of the top of the inner wall of the connecting box 51. The vertical rod 72 is fixedly connected to the top of the inner wall of the connecting box 51 and between the electric telescopic rods 71. The back end of the T-shaped sleeve 52 extends into the interior of the connecting box 51 and fits onto the surface of the vertical rod 72. A sliding plate 73 is fixedly connected to the bottom of the T-shaped sleeve 52 and to the surface of the vertical rod 72. The bottom of the electric telescopic rod 71 is fixedly connected to the top of the sliding plate 73. Through the setting of the movable mechanism 7, the electric telescopic rod 71 can work to push the sliding plate 73 to move up and down. The movement of the sliding plate 73 drives the T-shaped sleeve 52 to move vertically on the surface of the vertical rod 72 in sync, so as to determine the direction of movement of the T-shaped sleeve 52 and avoid the phenomenon of shaking during movement. A sliding groove 8 is provided at the front end of the connecting box 51 and at the position corresponding to the T-shaped sleeve 52. The sliding groove 8 is used in conjunction with the T-shaped sleeve 52. Through the setting of the sliding groove 8, the T-shaped sleeve 52 can be assisted in working and at the same time play a limiting role, preventing the T-shaped sleeve 52 from tilting during movement.
[0033] Reference Figure 1-4 Balance bars 9 are fixedly connected to the left and right sides of the bottom front end of the connecting box 51. The top of the balance bar 9 passes through the top of the T-shaped sleeve 52 and is fixedly connected to the top of the connecting box 51. The balance bar 9 assists the T-shaped sleeve 52 in its work and plays a role in force balance, preventing the T-shaped sleeve 52 from tilting or shifting due to excessive load. A fixing seat 10 is fixedly sleeved at the bottom of the vertical rod 72. The left and right sides of the fixing seat 10 are fixedly connected to the inside of the connecting box 51. The fixing seat 10 assists the vertical rod 72 in its work and plays a role in fixation, preventing the vertical rod 72 from shaking due to frequent mechanical movement. Support feet 11 are fixedly connected to the four corners of the bottom of the base 1. The support feet 11 are used in conjunction with the base 1. The support feet 11 assist the base 1 in its work and play a role in support and balance, preventing the base 1 from tilting due to uneven contact surfaces.
[0034] Working principle: During use, the raw materials are poured into the mixing tank 2. Then, the base 1, support 3, and control cabinet 4 are moved to the mine filling position. The control cabinet 4 is then activated to start the servo motor 54. The servo motor 54 drives the mixing rod 61 and the mixing impeller 62 to rotate clockwise. The rotating impeller 62 mixes and stirs the raw materials inside the mixing tank 2 to maintain their activity. Then, the mechanical movement inside the connecting box 51 is activated. At this time, the electric telescopic rod 71 reciprocates, pushing the sliding plate 73 to move. The sliding plate 73 moves up and down, causing the T-shaped sleeve 52 to move accordingly. The T-shaped sleeve plate 52 and the slide plate 73 move vertically and stably along the surface of the vertical rod 72. Subsequently, the T-shaped sleeve plate 52 drives the support plate 53 and the servo motor 54 to move up and down. The T-shaped sleeve plate 52, together with the slide groove 8, moves on the surface of the connecting box 51, and together with the balance bar 9, the T-shaped sleeve plate 52 is subjected to balanced force. Finally, the servo motor 54 drives the stirring rod 61 and the stirring impeller 62 to move up and down, so as to achieve stirring and mixing at different heights inside the mixing tank 2, reducing the phenomenon of solidification of raw materials inside the mixing tank 2 if not used for a long time, thereby assisting the external filling for long-term operation.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An auxiliary device for filling a goaf-side roadway, comprising a base (1), a mixing tank (2) placed on top of the base (1), a bracket (3) fixedly connected to the back end of the base (1), a control cabinet (4) disposed on the top right side of the bracket (3), and a connecting mechanism (5) fixedly connected to the top front end of the bracket (3), characterized in that: The connecting mechanism (5) includes a connecting box (51), a T-shaped sleeve (52), a tray (53), and a servo motor (54). The connecting box (51) is fixedly connected to the top of the front end of the bracket (3). The T-shaped sleeve (52) is slidably connected to the front end of the connecting box (51). The tray (53) is fixedly connected to the front end of the T-shaped sleeve (52). The servo motor (54) is fixedly connected to the top of the tray (53). The output end of the servo motor (54) is fixedly connected to the stirring assembly (6) through the bottom of the tray (53).
2. The auxiliary device for filling roadways along the goaf according to claim 1, characterized in that: The stirring assembly (6) includes a stirring rod (61) and a stirring impeller (62). The output end of the servo motor (54) is fixedly connected to the stirring rod (61) through the bottom of the tray (53). The bottom of the stirring rod (61) is fixedly connected to the stirring impeller (62) through the inside of the stirring tank (2). Movable mechanisms (7) are fixedly connected to the left and right sides of the top of the inner wall of the connecting box (51).
3. The auxiliary device for filling roadways along the goaf according to claim 2, characterized in that: The active mechanism (7) includes an electric telescopic rod (71), a vertical rod (72), and a sliding plate (73). The electric telescopic rod (71) is fixedly connected to the left and right sides of the top of the inner wall of the connecting box (51). The vertical rod (72) is fixedly connected to the top of the inner wall of the connecting box (51) and between the electric telescopic rods (71). The back end of the T-shaped sleeve (52) extends into the interior of the connecting box (51) and is fitted onto the surface of the vertical rod (72). The sliding plate (73) is fixedly connected to the bottom of the T-shaped sleeve (52) and onto the surface of the vertical rod (72). The bottom of the electric telescopic rod (71) is fixedly connected to the top of the sliding plate (73).
4. The auxiliary device for filling roadways along the goaf according to claim 1, characterized in that: A sliding groove (8) is provided at the front end of the connecting box (51) and at the position corresponding to the T-shaped sleeve plate (52), and the sliding groove (8) is used in conjunction with the T-shaped sleeve plate (52).
5. The auxiliary device for filling roadways along the goaf according to claim 1, characterized in that: Balance bars (9) are fixedly connected to the left and right sides of the bottom front end of the connecting box (51). The top of the balance bar (9) passes through the top of the T-shaped sleeve plate (52) and is fixedly connected to the top of the connecting box (51).
6. The auxiliary device for filling roadways along the goaf according to claim 3, characterized in that: The bottom of the vertical rod (72) is fixedly fitted with a fixing seat (10), and the left and right sides of the fixing seat (10) are fixedly connected to the inside of the connecting box (51).
7. The auxiliary device for filling roadways along the goaf according to claim 1, characterized in that: The four corners of the bottom of the base (1) are fixedly connected with support feet (11), and the support feet (11) are used in conjunction with the base (1).