Air duct reel mechanism for pulling frame of roadheader

Abstract

The utility model discloses an air duct reel mechanism for a pulling frame of a roadheader, which belongs to the technical field of the pulling frame of the roadheader and comprises the roadheader and a roof anchor net positioned on the front side of the roadheader, and a dust removal fan component is arranged on the back of the roadheader; a sliding groove rod is further included. The multiple negative pressure air ducts are spliced and communicated together, and each negative pressure air duct is in sliding connection with the corresponding sliding groove rod through the corresponding hoisting sliding piece; the air duct reel is arranged on the dust removal fan component, and the dust removal fan component is in through connection with the negative pressure air duct at the tail; the pulley assembly is arranged on the bottom face of the top plate anchor net and connected with the air duct reel through a pulley rope. The end, away from the air duct reel, of the pulley rope is connected with the negative pressure air duct close to the dust removal fan assembly. The rope anti-collision auxiliary part is arranged at the end, close to the dust removal fan part, of the sliding groove rod, and the end, close to the air duct reel, of the pulley rope abuts against the rope anti-collision auxiliary part. According to the utility model, the safety standing problem of personnel is effectively solved, and the completeness of the air duct during the frame pulling period is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of a pulling frame of a fully mechanized excavator, in particular to a wind tube winch mechanism for the pulling frame of a fully mechanized excavator. Background Art

[0002] TBMs are essential equipment for excavation operations in underground projects such as mines and tunnels. In high-gas mines, TBMs require frequent gantry pulls due to their rapid advance. Traditionally, this involves a person standing on the side of the secondary conveyor and pulling the air duct with wire. This is not only inefficient but also unsafe and can easily damage the negative pressure duct. Utility Model Content

[0003] The purpose of the utility model is to provide a wind tube winch mechanism for a pulling frame of a fully mechanized excavator, so as to solve the problems raised in the background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a windlass winch mechanism for a pulling frame of a fully mechanized excavator;

[0005] It includes a tunnel boring machine and a roof anchor net located in front of the tunnel boring machine, and a dust removal fan component is provided at the back of the tunnel boring machine;

[0006] It also includes a slide rod, which is horizontally fixed just below the top plate anchor net;

[0007] A plurality of negative pressure air ducts are provided and connected together, and each of the negative pressure air ducts is slidably connected to the slide rod through a lifting sliding member;

[0008] The wind tube reel is provided on the dust removal fan component and the dust removal fan component is connected to the negative pressure wind tube at the end;

[0009] A pulley assembly is provided on the bottom surface of the top plate anchor net and is connected to the wind tube winch by a pulley rope, wherein one end of the pulley rope away from the wind tube winch is connected to a negative pressure wind tube near the dust removal fan component;

[0010] The rope anti-collision auxiliary part is arranged at one end of the slide rod close to the dust removal fan part, and the end of the pulley rope close to the wind cylinder winch abuts against the rope anti-collision auxiliary part;

[0011] The puller rope has one end connected to the tunneling end of the tunnel boring machine, and the other end pulls the dust removal fan forward. As the tunnel boring machine advances, the puller rope pulls the dust removal fan forward. The forward movement of the dust removal fan drives the wind tube winch, pulling the pulley rope. The pulley rope moves on the pulley assembly, pulling the negative pressure fan tube to move, completing the splicing and connection of multiple negative pressure fan tubes.

[0012] Preferably, the lower part of the tunnel boring machine has a dust removal fan base, and the dust removal fan component is slidably connected to the top surface of the dust removal fan base at one end away from the tunnel boring machine, so that the dust removal fan component can be pulled and moved when the tunnel boring machine moves forward.

[0013] Preferably, the top surface of the dust removal fan component is mounted with a U-shaped support via bolts, and the wind cylinder winch is rotatably mounted in the U-shaped support via a pin shaft, so that one end of the pulley rope is wound around the wind cylinder winch.

[0014] In this embodiment, the slideway rod is preferably I-shaped, and the lifting slide comprises a lifting slider slidably connected to the outer wall of the slideway rod, a lifting rod welded to the bottom surface of the lifting slider, and a lifting limit hoop welded to the bottom end of the lifting rod. The lifting limit hoop is clamped to the outer wall of the negative pressure air duct. The fixed connection between the lifting rod and the lifting limit hoop can limit the negative pressure air duct and prevent the negative pressure air duct from rotating and misaligning.

[0015] Preferably, the lifting slider is a U-shaped structure clamped from bottom to top, and the inner walls on both sides of the lifting slider are integrally connected with slider parts, and the slider parts are slidably connected with the sliding grooves on both sides of the sliding groove rod.

[0016] In this solution, the two sliding blocks are preferably provided with positioning balls embedded in the opposite sides thereof, and the positioning balls are in rolling frictional contact with the slide grooves on both sides of the slide groove rod. The design of the positioning balls makes the sliding more smooth and free of jamming.

[0017] In this embodiment, the hoisting limit hoop is preferably arc-shaped and conforms to the upper outer wall of the negative pressure air duct. A hoisting rope is fixedly connected to both ends of the hoisting limit hoop, and the rope is tightly wrapped around the negative pressure air duct. Thus, the hoisting limit hoop and the rope are spliced ​​together to form a ring-shaped structure that fixes the negative pressure air duct.

[0018] Preferably, the pulley assembly includes a first pulley located above the dust removal fan component and a second pulley located above the tunnel boring machine, and the exteriors of the first pulley and the second pulley are connected to an inverted second U-shaped plate via a pin shaft.

[0019] In the preferred embodiment of the present invention, the second U-shaped plate is fixed to the bottom surface of the top plate anchor net, and the end of the pulley rope away from the wind tube winch passes through the first pulley and the second pulley in sequence and is finally connected to the negative pressure wind tube.

[0020] In this preferred embodiment, the rope anti-collision auxiliary component includes an extension rod welded to the outer wall of one end of the slide rod close to the dust removal fan component, a first U-shaped plate welded to the free end of the extension rod, and an auxiliary roller hinged in the first U-shaped plate through a pin shaft. After the pulley rope is led out from the wind cylinder winch, it extends through the auxiliary roller and wraps around the first pulley.

[0021] Compared with the prior art, the technical effects and advantages of this utility model are:

[0022] The wind tube winch mechanism for the TBM puller connects the dust removal blower to the TBM via a puller rope, ensuring that the blower always moves in the direction of the TBM's excavation. This design enables the blower to promptly and effectively remove dust from the TBM's operating area, improving dust removal efficiency. This highly efficient dust removal system significantly reduces dust concentration within the operating area, improving the working environment and safeguarding worker health and safety.

[0023] During the gantry pull, the wind tube winch and pulley assembly are used to redirect the force. The tunnel boring machine drives the dust removal fan, which in turn automatically and synchronously drives the wind tube. Compared to the traditional gantry pull, where personnel stand on the side of the secondary transport and pull the wind tube with wire, this method effectively solves the problem of personnel standing safely. Secondly, the dust removal fan drives the negative pressure wind tube to move synchronously, effectively ensuring the integrity of the wind tube during the gantry pull.

[0024] The negative pressure duct is suspended from the chute rod via a lifting slider, automatically adjusting its position as the dust removal blower moves. The pulley rope, working through the duct winch and pulley assembly, ensures smooth movement of the negative pressure duct. This automatic follow-up adjustment function reduces the need for manual intervention, reduces operational complexity and labor intensity, and improves work efficiency. This solution, through technical modifications to the duct winch, effectively improves pull-out efficiency, ensures personnel safety, and effectively protects the integrity of the negative pressure duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a structural diagram of the utility model;

[0027] Figure 2 This is a schematic diagram of the connection structure of the slide rod of the utility model;

[0028] Figure 3 This is a structural diagram of the negative pressure air duct of the present invention in a hoisting state;

[0029] Figure 4 This is a schematic diagram of the connection structure of the auxiliary roller of the utility model.

[0030] Description of reference numerals:

[0031] In the figure: 1. Tunnel boring machine; 2. Dust removal fan base; 3. Dust removal fan parts; 4. Pull frame connecting rope; 5. Second transport belt; 6. Slide rod; 7. Top plate anchor net; 8. Wind tube winch; 9. Negative pressure wind tube; 10. First pulley; 11. Second pulley; 12. Pulley rope; 13. Disconnection gap; 14. Pulley assembly; 15. Lifting slider; 16. Extension rod; 17. First U-shaped plate; 18. Slider part; 19. Positioning ball; 20. Lifting rod; 21. Lifting limit hoop; 22. Lifting rope; 23. U-shaped support; 24. Auxiliary roller; 25. Second U-shaped plate. DETAILED DESCRIPTION

[0032] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0033] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0034] This embodiment provides Figures 1 to 4 The illustrated wind tube winch mechanism for a tunnel boring machine puller includes a tunnel boring machine 1 and a roof anchor net 7 located in front of the tunnel boring machine 1. A dust removal fan 3 is located behind the tunnel boring machine 1. The mechanism also includes a slideway rod 6, a negative pressure wind tube 9, a wind tube winch 8, a pulley assembly 14, a rope anti-collision auxiliary component, and a puller connecting rope 4. The dust removal fan 3 is responsible for removing dust from the working area of ​​the tunnel boring machine 1, improving the working environment and protecting the health of workers. The puller connecting rope 4 connects the tunnel boring machine 1 and the dust removal fan 3. As the tunnel boring machine 1 advances, it pulls the dust removal fan 3 to move, ensuring that the dust removal fan 3 is always within the effective working range. A secondary transport belt 5 is provided on one side of the tunnel boring machine 1. The secondary transport belt 5 is used to transport materials excavated by the tunnel boring machine 1, thereby improving work efficiency. The roof anchor net 7 reinforces the roof, prevents collapse, and protects the safety of workers.

[0035] The dust collecting fan 3 of this embodiment is housed in the airtight container 1 and is convenient to use and can be used for the dust collecting fan 3 of this embodiment.

[0036] In this embodiment, one end of the puller connecting rope 4 is connected to the excavation end of the tunnel boring machine 1, and the other end pulls the dust removal fan component 3 forward. As the tunnel boring machine 1 advances, the puller connecting rope 4 pulls the dust removal fan component 3 forward. The dust removal fan component 3 advances, driving the wind tube winch 8 to pull the pulley rope 12. The pulley rope 12 moves on the pulley assembly 14, thereby pulling the negative pressure fan 9 to move and complete the splicing and connection of multiple negative pressure fan ducts 9. The second section of the negative pressure fan duct 9 at the front of the dust removal fan component 3 is disconnected, and the disconnected negative pressure fan duct 9 is moved forward to leave a disconnection gap 13 of 12-15 meters. Disconnection gap 13 is designed so that when the dust removal fan component 3 needs to be moved, a portion of the negative pressure fan duct 9 can be disconnected to accommodate the movement requirements of the equipment. After the puller is completed, the negative pressure fan duct 9 is reconnected. In addition, when the dust removal fan component 3 is pulled forward, the pulley rope 12 is pulled through the wind tube winch 8. After the pulley rope 12 is in an inclined pulling state, it is easy to collide with the slide rod 6. The rope anti-collision auxiliary component is used to abut and assist the sliding of the pulley rope 12, thereby changing the pulling inclination angle of the pulley rope 12 to prevent it from colliding with the slide rod 6 and damaging the pulley rope 12.

[0037] In this embodiment, the lower part of the tunnel boring machine 1 has a dust removal fan base 2, and the dust removal fan component 3 is slidably connected to the top surface of the dust removal fan base 2 at one end away from the tunnel boring machine 1, so that the dust removal fan component 3 can be pulled and moved when the tunnel boring machine 1 moves forward.

[0038] In this embodiment, a U-shaped support 23 is installed on the top surface of the dust removal fan component 3 through bolts, and the wind cylinder reel 8 is rotatably installed in the U-shaped support 23 through a pin shaft, so that one end of the pulley rope 12 is wrapped around the wind cylinder reel 8.

[0039] In this embodiment, the chute rod 6 is in an I-shaped structure, and the lifting sliding member includes a lifting slider 15 slidably connected to the outer wall of the chute rod 6, a lifting rod 20 welded to the bottom surface of the lifting slider 15, and a lifting limit hoop 21 welded to the bottom end of the lifting rod 20. The lifting limit hoop 21 is clamped to the outer wall of the negative pressure air duct 9. The fixed connection between the lifting rod 20 and the lifting limit hoop 21 can limit the negative pressure air duct 9 and prevent the negative pressure air duct 9 from rotating and misaligning.

[0040] In this embodiment, the lifting slider 15 is a U-shaped structure that is clamped from bottom to top, and the inner walls on both sides of the lifting slider 15 are integrally connected with slider parts 18, which are slidably connected to the sliding grooves on both sides of the sliding groove rod 6.

[0041] In this embodiment, two positioning balls 19 are embedded in the opposing sides of the two slider portions 18. These balls 19 engage in rolling friction with the two side grooves of the chute rod 6. The design of the positioning balls 19 ensures smooth and unobstructed sliding. The slider portions 18 and the positioning balls 19 reduce friction between the suspension slider 15 and the chute rod 6, ensuring smooth sliding.

[0042] In this embodiment, the hoisting limit hoop 21 is an arc-shaped structure and matches the upper outer wall of the negative pressure air duct 9. The two ends of the hoisting limit hoop 21 are fixedly connected to the hoisting rope 22, and the hoisting rope 22 is tightly wrapped around the negative pressure air duct 9. The hoisting limit hoop 21 and the hoisting rope 22 are spliced ​​together to form a ring structure that fixes the negative pressure air duct 9.

[0043] In this embodiment, the pulley assembly 14 includes a first pulley 10 located above the dust removal fan component 3 and a second pulley 11 located above the tunnel boring machine 1. The outside of the first pulley 10 and the second pulley 11 are both connected to an inverted second U-shaped plate 25 through a pin shaft.

[0044] In this embodiment, the second U-shaped plate 25 is fixed to the bottom surface of the top plate anchor net 7, and the end of the pulley rope 12 away from the wind tube winch 8 passes through the first pulley 10 and the second pulley 11 in sequence and is finally connected to the negative pressure wind tube 9.

[0045] In this embodiment, the rope anti-collision auxiliary component includes an extension rod 16 welded to the outer wall of one end of the slide rod 6 close to the dust removal fan component 3, a first U-shaped plate 17 welded to the free end of the extension rod 16, and an auxiliary roller 24 hinged to the first U-shaped plate 17 through a pin shaft. After the pulley rope 12 is led out from the wind tube winch 8, it extends through the auxiliary roller 24 and wraps around the first pulley 10. The auxiliary roller 24 and the first U-shaped plate 17 constitute a rope anti-collision auxiliary component, which prevents the pulley rope 12 from colliding with the slide rod 6 or other structures during movement, reduces wear and extends service life.

[0046] Working principle:

[0047] The tunnel boring machine puller uses a wind tube winch mechanism to position the tunnel boring machine 1 at the predetermined excavation position. A roof anchor net 7 is installed on the front side of the tunnel boring machine 1 to ensure the safety of the roof. The dust removal fan base 2 is fixed to the rear side of the tunnel boring machine 1, and the dust removal fan component 3 is mounted on the dust removal fan base 2. A slide rod 6 is fixed horizontally directly below the roof anchor net 7 to guide the movement of the negative pressure fan 9. Multiple negative pressure fan ducts 9 are suspended from the slide rod 6 via a lifting slide, ensuring that the negative pressure fan ducts 9 can slide along the slide rod 6. The wind tube winch 8 is installed on the dust removal fan component 3 and secured by a U-shaped support 23. One end of the pulley rope 12 is fixed to the wind tube winch 8, and the other end passes through the first pulley 10 and the second pulley 11 in sequence, ultimately connecting to the first negative pressure fan duct 9 near the dust removal fan component 3. The rope anti-collision auxiliary component is installed at one end of the slide rod 6 close to the dust removal fan component 3, and is used to prevent the pulley rope 12 from colliding with the slide rod 6 during movement.

[0048] The tunnel boring machine 1 is started and the excavation operation begins. One end of the pulling frame connecting rope 4 is fixed to the excavation end of the tunnel boring machine 1, and the other end is connected to the dust removal fan component 3. As the tunnel boring machine 1 moves forward, the pulling frame connecting rope 4 is gradually tightened, pulling the dust removal fan component 3 forward. The dust removal fan component 3 is pulled forward by the pulling frame connecting rope 4. The movement of the dust removal fan component 3 drives the wind cylinder winch 8 to rotate. The wind cylinder winch 8 pulls the first negative pressure wind cylinder 9 through the pulley rope 12. The pulley rope 12 is guided by the first pulley 10 and the second pulley 11 to ensure that the pulling force is evenly distributed and reduce friction. The negative pressure wind cylinder 9 slides along the slide rod 6 and gradually expands as the dust removal fan component 3 moves forward, maintaining communication with the dust removal fan component 3.

[0049] When the pulley rope 12 is in an inclined state during the pulling process, it is easy to collide with the slide rod 6. The auxiliary roller 24 is fixed to the slide rod 6 through the first U-shaped plate 17. When the pulley rope 12 passes through the auxiliary roller 24, the auxiliary roller 24 changes the pulling angle of the pulley rope 12 to prevent it from colliding with the slide rod 6 and reducing wear.

[0050] When a larger excavation distance adjustment is required, the second front section of the negative pressure air duct 9 can be disconnected to form a disconnection gap 13. The disconnected negative pressure air duct 9 is moved forward to leave a distance of 12-15 meters so that the tunneling machine 1 can continue to excavate. After the excavation is completed, the disconnected negative pressure air duct 9 is reconnected to restore the integrity of the system.

[0051] After the excavation operation is completed, the tunnel boring machine 1 stops moving, the pulling frame connecting rope 4 is loosened, the dust removal fan component 3 stops moving, and the negative pressure air duct 9 remains in the current position, waiting for the next excavation operation.

[0052] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0053] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A windlass winch mechanism for a fully-mechanized tunnel boring machine; The invention comprises a comprehensive excavator (1) and a roof anchor net (7) located at the front side of the comprehensive excavator (1); a dust removal fan component (3) is provided at the back of the comprehensive excavator (1); Its characteristics are: It also includes a slide rod (6), which is horizontally fixed just below the top plate anchor net (7); A plurality of negative pressure air ducts (9) are provided, and each of the negative pressure air ducts (9) is slidably connected to the slide rod (6) via a hanging sliding member; The wind tube reel (8) is arranged on the dust removal fan component (3) and the dust removal fan component (3) is connected to the negative pressure wind tube (9) at the end; A pulley assembly (14) is arranged on the bottom surface of the top plate anchor net (7) and is connected to the wind tube winch (8) via a pulley rope (12), wherein one end of the pulley rope (12) away from the wind tube winch (8) is connected to a negative pressure wind tube (9) near the dust removal fan component (3); A rope anti-collision auxiliary component is provided at one end of the slide rod (6) close to the dust removal fan component (3), and one end of the pulley rope (12) close to the wind tube winch (8) abuts against the rope anti-collision auxiliary component; One end of the pulling frame connecting rope (4) is connected to the excavation end of the comprehensive excavator (1), and the other end pulls the dust removal fan component (3) forward.

2. The wind turbine winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 1, characterized in that: The lower part of the excavator (1) is provided with a dust removal fan base (2), and the dust removal fan component (3) is slidably connected to the top surface of one end of the dust removal fan base (2) away from the excavator (1), so that the dust removal fan component (3) can be pulled and moved when the excavator (1) moves forward.

3. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 2, characterized in that: The top surface of the dust removal fan component (3) is mounted with a U-shaped support (23) via bolts, and the wind tube reel (8) is rotatably mounted in the U-shaped support (23) via a pin shaft, so that one end of the pulley rope (12) is wound around the wind tube reel (8).

4. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 3, characterized in that: The chute rod (6) is in an I-shaped structure, and the hoisting sliding member comprises a hoisting slider (15) slidably connected to the outer wall of the chute rod (6), a hoisting rod (20) welded to the bottom surface of the hoisting slider (15), and a hoisting limit hoop (21) welded to the bottom end of the hoisting rod (20); The hoisting limiting hoop (21) is clamped on the outer wall of the negative pressure wind tube (9).

5. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 4, characterized in that: The hoisting slider (15) is a U-shaped structure that is clamped from bottom to top, and the inner walls on both sides of the hoisting slider (15) are integrally connected with slider parts (18); The slider portion (18) is slidably connected to the sliding grooves on both sides of the sliding groove rod (6).

6. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 5, characterized in that: Positioning balls (19) are rolled and embedded in the opposite sides of the two sliding block parts (18), and the positioning balls (19) are in rolling friction contact with the sliding grooves on both sides of the sliding groove rod (6).

7. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 6, characterized in that: The hoisting limit hoop (21) is of arc-shaped structure and matches the upper outer wall of the negative pressure wind tube (9). Both ends of the hoisting limit hoop (21) are fixedly connected with a hoisting rope (22), and the hoisting rope (22) is tightly wrapped around the negative pressure wind tube (9).

8. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 7, characterized in that: The pulley assembly (14) includes a first pulley (10) located above the dust removal fan component (3) and a second pulley (11) located above the tunnel boring machine (1); The outsides of the first pulley (10) and the second pulley (11) are both connected to an inverted second U-shaped plate (25) via a pin shaft.

9. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 8, characterized in that: The second U-shaped plate (25) is fixed to the bottom surface of the top plate anchor net (7), and the end of the pulley rope (12) away from the wind tube winch (8) passes through the first pulley (10) and the second pulley (11) in sequence and is finally connected to the negative pressure wind tube (9).

10. The wind tube winch mechanism for pulling a frame of a fully mechanized tunnel boring machine according to claim 9, characterized in that: The rope anti-collision auxiliary component comprises an extension rod (16) welded to the outer wall of one end of the slide rod (6) close to the dust removal fan component (3), a first U-shaped plate (17) welded to the free end of the extension rod (16), and an auxiliary roller (24) hinged to the first U-shaped plate (17) through a pin shaft. The pulley rope (12) is led out from the wind tube winch (8) and extends through the auxiliary roller (24) to wrap around the first pulley (10).

Images