Large-dip-angle coal face chain belt auxiliary traction device

Abstract

The invention relates to a chain belt auxiliary traction device for a large-dip-angle coal face, and discloses a chain belt auxiliary traction device for a large-dip-angle coal face. According to the chain belt auxiliary traction device, a coal mining machine is driven to move in the mode that a winding storage shaft on one side in a winding assembly tightens a traction rope and the other side of the winding assembly loosens; and a winding storage shaft is fixed through a hydraulic cylinder and a limiting clamping column, so that stable coal mining operation is realized. The device is characterized by comprising a winding assembly, an adjusting assembly and a coal mining machine, the adjusting assembly is arranged on the winding assembly, the coal mining machine is fixedly connected with the winding assembly, the winding assembly can drive the coal mining machine to move, and a traction rope can be evenly distributed and wound on the surface of a winding storage shaft through the adjusting assembly; the winding assembly is composed of a positioning base plate, a fixing plate, a power motor, a winding storage shaft, a baffle, a positioning groove, a limiting clamping column, a connecting plate, a hydraulic cylinder, a traction rope and a Hall sensor.

Description

Technical Field

[0001] A chain belt auxiliary traction device for a large dip angle coal mining face of the present invention relates to a chain belt auxiliary traction device for a large dip angle coal mining face that can stably carry out coal mining operations, belonging to the technical field of mining machinery. In particular, it relates to a chain belt auxiliary traction device for a large dip angle coal mining face that drives a shearer to move by tightening a traction rope on one side of a winding and receiving shaft in a winding assembly and loosening it on the other side, makes the traction rope evenly wound around the side of the winding and receiving shaft through an adjusting assembly, and fixes the winding and receiving shaft through a hydraulic cylinder and a limit clamping post to achieve stable coal mining operations. Background Art

[0002] In traditional large dip angle coal mining face operations, there are many drawbacks in the existing shearer traction facilities. Conventional traction devices mostly use a single power source or non-synergistic bilateral power, making it difficult to accurately and synchronously control the traction force on both sides. As a result, the stability of the shearer during movement is poor, often shaking and deviating, and it is difficult to ensure accurate displacement in a complex large dip angle environment, seriously affecting coal mining efficiency. At the same time, there is a lack of effective speed monitoring and control means. The shearer is prone to rapid sliding due to gravity when moving downhill, and it is impossible to monitor in real time and automatically limit the speed, greatly increasing the risk of safety accidents and threatening the lives of personnel and the integrity of equipment. Moreover, the traditional traction rope winding method is simple and crude, without a special adjusting assembly, and it is extremely easy to wind and knot or slip. This not only shortens the service life of the traction rope, consumes manpower, material resources and time, but also causes abnormal vibration of the shearer due to uneven winding, indirectly damaging internal mechanical components, increasing the failure rate and maintenance cost.

[0003] Publication No. CN114704254B discloses a limiting device for a chain haulage shearer, including a limiting block, a cover plate, a switch assembly, a pin and a clamping plate. The cover plate is bolted to the limiting block, the switch assembly is installed in the space formed by the limiting block and the cover plate, and the pin and the clamping plate fix the limiting block on the shearer running track of the scraper conveyor slide through bolts. When the shearer runs to the extreme positions at both ends of the conveyor, the shearer touches the limiting device to cause the travel switch to close, and the signal is transmitted to the traction power supply, the traction motor is powered off, and the shearer loses the traction power and stops running, preventing accidents caused by the inability to cut off the traction motor power in time when the shearer runs to the extreme positions at both ends of the scraper conveyor. The above-mentioned limiting device for a chain haulage shearer uses a single power source, making it difficult to accurately and synchronously control the traction on both sides. The shearer is prone to deviation during movement, and it is difficult to achieve accurate displacement under complex working conditions, seriously restricting coal mining efficiency. Moreover, the traction rope winding method is simple and crude, prone to winding failures, shortening the service life, and easily causing abnormal vibration of the shearer to damage internal components, increasing the failure rate and maintenance cost. Summary of the Invention

[0004] To improve the above situation, an auxiliary chain belt traction device for a large dip angle coal mining face in the present invention provides a way to drive the shearer to move by tightening the traction rope on one side of the winding and receiving shaft in the winding assembly and relaxing on the other side, and to evenly wind the traction rope on the side of the winding and receiving shaft through the adjusting assembly, and to fix the winding and receiving shaft through the hydraulic cylinder and the limit clamping column to achieve stable coal mining operation for the auxiliary chain belt traction device of the large dip angle coal mining face.

[0005] The auxiliary chain belt traction device for a large dip angle coal mining face in the present invention is realized as follows: The auxiliary chain belt traction device for a large dip angle coal mining face in the present invention includes a winding assembly, an adjusting assembly and a shearer. It is characterized in that the adjusting assembly is arranged on the winding assembly, the shearer is fixedly connected with the winding assembly, the winding assembly can drive the shearer to move, and the adjusting assembly can make the traction rope evenly distributed and wound on the surface of the winding and receiving shaft. The winding assembly is composed of a positioning base plate, a fixing plate, a power motor, a winding and receiving shaft, a baffle plate, a positioning groove, a limit clamping column, a connecting plate, a hydraulic cylinder, a traction rope and a Hall sensor. The positioning base plate is in a square plate-like structure. The fixing plate is fixedly connected to the top surface of the positioning base plate. Each positioning base plate corresponds to two fixing plates, and the two fixing plates are symmetrically arranged with respect to the positioning base plate, and there is a certain distance between the two fixing plates. Two power motors are fixedly arranged on the side surface of one of the fixing plates, and the power motors are not placed between the two fixing plates. One end of the winding and receiving shaft passes through a fixing plate and is fixedly connected to the motor shaft of a power motor, and a support bearing is arranged between the winding and receiving shaft and the fixing plate. The other end of the winding and receiving shaft is rotatably connected to another fixing plate on the positioning base plate. The baffle plate is in an annular structure, and the inner side surface of the baffle plate is fixedly connected to the side surface of the winding and receiving shaft. Each winding and receiving shaft corresponds to two baffle plates, and the two baffle plates are respectively placed near both ends of the winding and receiving shaft. A group of positioning grooves are opened on the other fixing plate, and a group of positioning grooves are opened on the baffle plate close to this fixing plate. The positioning grooves are in a cylindrical structure, and there are multiple positioning grooves in a group. The multiple positioning grooves are arranged equidistantly along the circumferential direction of the winding and receiving shaft. The positioning grooves opened on the fixing plate extend from one side surface of the positioning base plate to the other side surface opposite to it. The positioning grooves opened on the baffle plate extend from the side surface close to this fixing plate to half of its height. Each positioning base plate corresponds to a group of limit clamping columns. The multiple limit clamping columns in a group are arranged equidistantly along the circumferential direction of the winding and receiving shaft. The limit clamping columns correspond to the positioning grooves on the fixing plate one by one. The limit clamping columns pass through the positioning grooves on the fixing plate and are slidably connected to the fixing plate. One end of the connecting plate is fixedly connected to one end of a plurality of limiting clamping columns in a group. The connecting plate is placed outside the two fixing plates corresponding to the positioning substrate. One end of the hydraulic cylinder is fixedly connected to one end of the connecting plate, and the other end of the hydraulic cylinder is fixedly connected to the side surface of another fixing plate. One end of the towing rope is fixedly connected to the side surface of the winding and storage shaft. One end of the towing rope is placed between the two baffles. A plurality of small permanent magnets are equidistantly installed in the towing rope. The Hall sensor is fixedly placed on the top surface of the positioning substrate and is placed near the middle of the limiting and constraining rod. The limiting and constraining rod is placed between the Hall sensor and the winding and storage shaft. The adjusting assembly is composed of a transmission shaft, a limiting and constraining rod, a transmission groove, a towing rope adjusting block, a sliding block, and a guide roller. One end of the transmission shaft passes through one of the fixing plates and is fixedly connected to the motor shaft of another power motor, and a support bearing is arranged between the transmission shaft and the fixing plate. The other end of the positioning groove is rotatably connected to another fixing plate. The limiting and constraining rod is placed between the two fixing plates on the same positioning substrate. Both ends of the limiting and constraining rod are fixedly connected to the side surfaces of the two fixing plates respectively. The limiting and constraining rod is placed below the transmission shaft and is arranged parallel to the transmission shaft. A transmission groove is formed on the side surface of the transmission shaft. The transmission groove is composed of two threaded grooves. The two ends of the two threaded grooves correspond to each other and are communicated. The two threaded grooves are symmetrically arranged with respect to the plane passing through the central axis of the transmission shaft. Two sliding holes are formed on the towing rope adjusting block. The towing rope adjusting block is slidably connected to the transmission shaft and the limiting and constraining rod by means of the sliding holes. A sliding block is arranged in the sliding hole corresponding to the transmission shaft. The sliding block is rotatably connected to the towing rope adjusting block and is slidably connected to the transmission groove. A placement groove is formed on the transmission groove. The guide roller is placed in the placement groove. Both ends of the guide roller are rotatably connected to the towing rope adjusting block. The cross-sectional diameter of the guide roller decreases first and then increases in an arc shape from one end to the other end. The central axis of the guide roller is arranged parallel to the central axis of the limiting and constraining rod. Each towing rope adjusting block corresponds to multiple groups of guide rollers. Two guide rollers are provided in each group. The central axes of the two guide rollers in a group are in a vertical plane. Multiple groups of guide rollers are arranged equidistantly along the horizontal direction perpendicular to the central axis of the guide roller. The towing rope passes through multiple groups of guide rollers from one end and extends to the other end while being placed between the two guide rollers in a group. The other end of the towing rope is fixedly connected to one side surface of the coal mining machine. Each coal mining machine corresponds to two winding and collecting assemblies and an adjusting assembly, and the two winding and collecting assemblies and the adjusting assembly are symmetrically arranged with respect to the coal mining machine. Further, the side of the towing rope is spirally wound with a reinforcing rib. The cross-section of the reinforcing rib is in a semi-circular structure. The width of the reinforcing rib gradually decreases in an arc from the end connected to the towing rope to the other end, and the other end of the reinforcing rib is in an arc structure. Further, a protective sleeve is sleeved on the side of the guide roller. The protective sleeve is in a cylindrical structure. The diameter gradually increases first and then decreases in an arc from one end to the other end. The protective sleeve is made of rubber. Beneficial effects

[0006] First, the output speeds and rotation directions of the power motors on both sides of the winding assembly are the same. By precisely regulating the rotation of the winding and storage shaft, the smooth and precise displacement of the coal shearer is realized, greatly improving the coal mining efficiency.

[0007] Second, the Hall sensor cooperates with the permanent magnet of the towing rope for real-time monitoring, and assists the mine monitoring background to automatically limit the speed during the downward movement, preventing the coal shearer from sliding rapidly under gravity and reducing the accident rate.

[0008] Third, the adjustment assembly ensures that the towing rope is evenly wound on the winding and storage shaft, avoiding winding, knotting and slipping, not only prolonging the service life of the towing rope, but also reducing the abnormal vibration of the coal shearer and indirectly protecting the internal mechanical components.

[0009] Fourth, when the coal shearer pauses working, the winding and storage shaft can be locked, effectively avoiding the motor from being under long-term force during the pause of the coal shearer and reducing the wear of the motor. Description of the drawings

[0010] Figure 1 It is a three-dimensional structure diagram of an auxiliary chain belt traction device for a large dip angle coal mining face of the present invention; Figure 2 It is a three-dimensional structure diagram of an auxiliary chain belt traction device for a large dip angle coal mining face of the present invention; Figure 3 It is a three-dimensional structure diagram of an auxiliary chain belt traction device for a large dip angle coal mining face of the present invention; Figure 4 It is a structure diagram of an auxiliary chain belt traction device for a large dip angle coal mining face of the present invention; Figure 5 It is a three-dimensional structure diagram of Embodiment 2 of an auxiliary chain belt traction device for a large dip angle coal mining face of the present invention; Figure 6 It is a three-dimensional structure diagram of Embodiment 3 of an auxiliary chain belt traction device for a large dip angle coal mining face of the present invention. Drawings

[0011] Among them are: positioning substrate (1), connecting plate (2), limit clamping post (3), winding and storage shaft (4), fixing plate (5), transmission shaft (6), Hall sensor (7), traction rope (8), coal shearer (9), transmission groove (10), traction rope adjusting block (11), power motor (12), guiding roller (13), limit restraint rod (14), hydraulic cylinder (15), positioning groove (16), baffle plate (17), sliding block (18), reinforcing rib (19), protective sleeve (20). Specific implementation mode Embodiment 1

[0012] A chain belt auxiliary traction device for a large dip angle coal mining face of the present invention is realized as follows: A chain belt auxiliary traction device for a large dip angle coal mining face of the present invention includes a winding component, an adjusting component and a coal shearer (9), Characterized in that the adjusting component is arranged on the winding component, the coal shearer (9) is fixedly connected with the winding component, the winding component can drive the coal shearer (9) to move, and the adjusting component can make the traction rope (8) evenly distributed and wound on the surface of the winding and storage shaft (4), The winding component is composed of a positioning substrate (1), a fixing plate (5), a power motor (12), a winding and storage shaft (4), a baffle plate (17), a positioning groove (16), a limit clamping post (3), a connecting plate (2), a hydraulic cylinder (15), a traction rope (8) and a Hall sensor (7), The positioning substrate (1) is in a square plate-like structure, The fixing plate (5) is fixedly connected to the top surface of the positioning substrate (1). Each positioning substrate (1) corresponds to two fixing plates (5). The two fixing plates (5) are symmetrically arranged with respect to the positioning substrate (1), and there is a certain distance between the two fixing plates (5), Two power motors (12) are fixedly arranged on the side surface of one of the fixing plates (5), and the power motors (12) are not arranged between the two fixing plates (5), One end of the winding and storage shaft (4) passes through a fixing plate (5) and is fixedly connected to the motor shaft of a power motor (12), and a support bearing is arranged between the winding and storage shaft (4) and the fixing plate (5). The other end of the winding and storage shaft (4) is rotatably connected to another fixing plate (5) on the positioning substrate (1), The baffle plate (17) is in a circular ring structure. The inner side surface of the baffle plate (17) is fixedly connected to the side surface of the winding and storage shaft (4). Each winding and storage shaft (4) corresponds to two baffle plates (17), and the two baffle plates (17) are respectively placed near both ends of the winding and storage shaft (4), Another one of the fixing plates (5) is provided with a set of positioning grooves (16), and the baffle plate (17) close to the fixing plate (5) is provided with a set of positioning grooves (16). The positioning grooves (16) are of a cylindrical structure. There are multiple positioning grooves (16) in a set. The multiple positioning grooves (16) are arranged at equal intervals along the circumferential direction of the winding and storage shaft (4). The positioning grooves (16) formed on the fixing plate (5) extend from one side surface of the positioning substrate (1) to the other side surface opposite thereto. The positioning grooves (16) formed on the baffle plate (17) extend from the side surface close to the fixing plate (5) to half of its height. Each positioning substrate (1) corresponds to a set of limiting clamping columns (3). The multiple limiting clamping columns (3) in a set are arranged at equal intervals along the circumferential direction of the winding and storage shaft (4). The limiting clamping columns (3) correspond to the positioning grooves (16) on the fixing plate (5) one by one. The limiting clamping columns (3) pass through the positioning grooves (16) on the fixing plate (5) and are slidably connected to the fixing plate (5). One end of the connecting plate (2) is fixedly connected to one end of the multiple limiting clamping columns (3) in a set. The connecting plate (2) is placed outside the two fixing plates (5) corresponding to the positioning substrate (1). One end of the hydraulic cylinder (15) is fixedly connected to one end of the connecting plate (2). The other end of the hydraulic cylinder (15) is fixedly connected to the side surface of another fixing plate (5). One end of the traction rope (8) is fixedly connected to the side surface of the winding and storage shaft (4). One end of the traction rope (8) is placed between the two baffle plates (17). A plurality of small permanent magnets are equidistantly installed in the traction rope (8). The Hall sensor (7) is fixedly placed on the top surface of the positioning substrate (1) and is placed close to the middle of the limiting constraint rod (14). The limiting constraint rod (14) is placed between the Hall sensor (7) and the winding and storage shaft (4). The adjusting assembly is composed of a transmission shaft (6), a limiting constraint rod (14), a transmission groove (10), a traction rope adjusting block (11), a sliding block (18) and a guide roller (13). One end of the transmission shaft (6) passes through one of the fixing plates (5) and is fixedly connected to the motor shaft of another power motor (12), and a support bearing is arranged between the transmission shaft (6) and the fixing plate (5). The other end of the positioning groove (16) is rotatably connected to another fixing plate (5). The limiting constraint rod (14) is placed between the two fixing plates (5) on the same positioning substrate (1). Both ends of the limiting constraint rod (14) are fixedly connected to the side surfaces of the two fixing plates (5). The limiting constraint rod (14) is placed below the transmission shaft (6) and is arranged in parallel with the transmission shaft (6). A transmission groove (10) is formed on the side surface of the transmission shaft (6). The transmission groove (10) is composed of two threaded grooves. The two ends of the two threaded grooves correspond to each other and are communicated. The two threaded grooves are symmetrically arranged with respect to a plane passing through the central axis of the transmission shaft (6). Two sliding holes are formed in the traction rope adjusting block (11). The traction rope adjusting block (11) is slidably connected to the transmission shaft (6) and the limit constraint rod (14) by means of the sliding holes. A sliding block (18) is arranged in the sliding hole corresponding to the transmission shaft (6). The sliding block (18) is rotatably connected to the traction rope adjusting block (11), and the sliding block (18) is slidably connected to the transmission groove (10). A placement groove is formed on the transmission groove (10). The guide roller (13) is placed in the placement groove. The two ends of the guide roller (13) are rotatably connected to the traction rope adjusting block (11). The cross-sectional diameter of the guide roller (13) decreases first and then increases in an arc shape from one end to the other end. The central axis of the guide roller (13) is parallel to the central axis of the limit constraint rod (14). Each traction rope adjusting block (11) corresponds to multiple groups of guide rollers (13). Two guide rollers (13) are provided in each group. The central axes of the two guide rollers (13) in one group are in a vertical plane. The multiple groups of guide rollers (13) are arranged at equal intervals along the horizontal direction perpendicular to the central axis of the guide roller (13). The traction rope (8) passes through multiple groups of guide rollers (13) from one end, and is placed between the two guide rollers (13) in one group and extends to the other end. The other end of the traction rope (8) is fixedly connected to one side surface of the coal shearer (9). Each coal shearer (9) corresponds to two winding assemblies and adjusting assemblies, and the two winding assemblies and adjusting assemblies are symmetrically arranged with respect to the coal shearer (9). During use, multiple power motors (12) are synchronously driven. The output speeds and rotation directions of the two power motors (12) connected to the winding and storage shafts (4) on both sides of the coal shearer (9) are the same. During the rotation of the winding and storage shafts (4), one of the winding and storage shafts (4) tightens the traction rope (8), and the other winding and storage shaft (4) relaxes the traction rope (8), thereby driving the coal shearer (9) to move towards the tightening side. At the same time, with the cooperation of the Hall sensor (7) and the small permanent magnet inside the traction rope (8), the moving speeds of the traction ropes (8) on both sides of the coal shearer (9) can be monitored in real time, and the speed signals are transmitted to the control background. Based on the received speed signals, the control background manually adjusts the rotation speeds of the power motors (12) connected to the winding and storage shafts (4) to ensure that the winding and unwinding speeds of the two traction ropes (8) match, so that the two traction ropes (8) are always in a taut state. When the coal shearer (9) moves downward, it can play a role in limiting the speed of the coal shearer (9) to prevent the coal shearer (9) from sliding rapidly under the action of gravity. At the same time, during the movement of the coal shearer (9), the transmission shaft (6) on the side where the driving power motor (12) winds the traction rope (8) rotates. By sliding the sliding block (18) on the transmission groove (10), the traction rope adjusting block (11) is driven to move. The traction rope (8) slides on the gaps between each group of guide rollers (13) in the adjusting block. During the movement of the traction rope adjusting block (11), the traction rope (8) can be evenly distributed on the side surface of the winding and storage shaft (4) when being wound by the winding and storage shaft (4), avoiding winding in one place and also avoiding the sudden relaxation of the rope after winding, which may cause the coal shearer (9) to vibrate. When the coal shearer (9) wants to pause moving, the driving hydraulic cylinder (15) drives the connecting plate (2) to move in the corresponding direction, so that the limit clamping column (3) is inserted into the positioning groove (16) on the baffle (17), thereby being able to fix the winding and storage shaft (4) to prevent it from rotating again, thus reducing the long-term force on the motor; Embodiment 2

[0013] The difference between this embodiment and Embodiment 1 is that: a reinforcing rib (19) is spirally wound on the side surface of the traction rope (8). The cross-section of the reinforcing rib (19) is in a semi-circular structure. The width of the reinforcing rib (19) gradually decreases in an arc from one end connected to the traction rope (8) to the other end. The other end of the reinforcing rib (19) is in an arc structure. During use, when the traction rope (8) comes into contact with and slides against components, or rubs against external objects such as surrounding ores and rock walls in the complex coal mining face environment, the reinforcing rib (19) always bears the frictional external force first, effectively reducing the contact frequency and contact area between the traction rope (8) and the outside world, greatly reducing the wear of the traction rope (8), and thus extending the service life of the traction rope (8); Embodiment 3

[0014] The difference between this embodiment and Embodiment 1 is that a protective sleeve (20) is sleeved on the side of the guide roller (13). The protective sleeve (20) has a cylindrical structure. The diameter of the protective sleeve (20) first increases and then decreases in an arc shape from one end to the other end. The protective sleeve (20) is made of rubber. During use, it greatly reduces the wear degree of the traction rope (8) during the sliding process in the middle of the guide roller (13). While extending the service life of the traction rope (8), it ensures the normal operation of the guide roller (13).

[0015] The fixed plate (5) is fixedly connected to the top surface of the positioning substrate (1). Each positioning substrate (1) corresponds to two fixed plates (5). The two fixed plates (5) are symmetrically arranged with respect to the positioning substrate (1). The design with a certain distance between the two fixed plates (5) provides a stable support point for the winding and storage shaft (4), ensuring that it will not shift during rotation and guaranteeing the accuracy and stability of the retraction and release of the traction rope (8). The design of arranging a support bearing between the winding and storage shaft (4) and the fixed plate (5) reduces the friction force during the rotation of the winding and storage shaft (4), reduces energy loss, and at the same time extends the service life of the winding and storage shaft (4), improving the operation efficiency and reliability of the device. The baffle (17) has an annular structure and its inner side is fixedly connected to the side of the winding and storage shaft (4). Each winding and storage shaft (4) corresponds to two baffles (17) and they are respectively placed near both ends. The baffle (17) can limit the position of the traction rope (8) on the winding and storage shaft (4), preventing the traction rope (8) from slipping out of the shaft during the retraction and release process, ensuring the neatness and safety of the winding of the traction rope (8), and avoiding equipment failures and safety accidents caused by the slipping of the traction rope (8). The design of the cooperation between the positioning groove (16) and the limit clamping post (3). When it is necessary to pause the movement of the shearer (9), the hydraulic cylinder (15) drives the connecting plate (2) to move, so that the limit clamping post (3) is inserted into the positioning groove (16) on the baffle (17), which can fix the winding and storage shaft (4), prevent it from rotating due to gravity or other external forces when the shearer (9) stops, reduce the long-term force on the motor, extend the service life of the motor and the entire device, and at the same time improve the safety of coal mining operations. The design that the positioning groove (16) has a cylindrical structure and is arranged at equal intervals makes the insertion of the limit clamping post (3) more stable and accurate, can reliably lock the winding and storage shaft (4), and the equal interval arrangement can adapt to different locking positions to meet the requirements under various working conditions. The design that one end of the hydraulic cylinder (15) is fixedly connected to one end of the connecting plate (2), and the other end is fixedly connected to the side surface of the fixing plate (5). The hydraulic cylinder (15) serves as a power source and can provide sufficient thrust to accurately insert the limit clamping post (3) into the positioning groove (16), realizing the quick locking and unlocking of the winding and storage shaft (4). Its structure is compact and occupies little space, making it suitable for use in an environment with limited space such as a coal mining face; The design that a plurality of small permanent magnets are equidistantly installed in the traction rope (8). The small permanent magnets cooperate with the Hall sensors (7) to detect the moving speeds of the traction ropes (8) on both sides of the shearer (9), ensuring that no matter how the shearer (9) moves, the two traction ropes (8) can be in a taut state. When the shearer (9) moves downward, it can play a role in limiting the speed of the shearer (9), preventing the shearer (9) from sliding rapidly under the action of gravity, and improving the safety and stability of coal mining operations; The design that a transmission groove (10) is formed on the side surface of the transmission shaft (6). The transmission groove (10) consists of two threaded grooves. The two threaded grooves correspond to each other and are communicated at both ends, and the two threaded grooves are symmetrically arranged with respect to the plane passing through the central axis of the transmission shaft (6). When the sliding block (18) slides therein, it can drive the traction rope adjusting block (11) to move along the transmission shaft (6), thereby realizing the uniform distribution adjustment of the traction rope (8); The design that the limit constraint rod (14) is placed between the two fixing plates (5) and is arranged parallel to the transmission shaft (6) provides a sliding guide for the traction rope adjusting block (11), restricting the rotation of the traction rope adjusting block (11) so that it can only perform linear sliding along the transmission shaft (6) and the limit constraint rod (14), ensuring the stability and accuracy of the traction rope (8) during the adjustment process and avoiding the entanglement chaos of the traction rope (8) caused by the rotation of the adjusting block; The design that two sliding connection holes are formed on the traction rope adjusting block (11) and the traction rope adjusting block (11) is slidably connected to the transmission shaft (6) and the limit constraint rod (14) through the sliding connection holes. Through the cooperation of the sliding connection holes with the transmission shaft (6) and the limit constraint rod (14), the traction rope adjusting block (11) can move along the transmission shaft (6) under the drive of the power motor (12), thereby driving the traction rope (8) to be evenly distributed and wound around the winding and storage shaft (4), avoiding the traction rope (8) being wound in one place, and improving the utilization rate of the winding and storage shaft (4) and the service life of the traction rope (8); The design that the cross-sectional diameter of the guide roller (13) decreases first and then increases in an arc shape from one end to the other end and the central axis is parallel to the central axis of the limit constraint rod (14) can better guide the movement of the traction rope (8) within the adjusting block, enabling the traction rope (8) to smoothly slide on the gap between each group of guide rollers (13), further ensuring that the traction rope (8) is evenly distributed and wound around the winding and storage shaft (4), and improving the reliability and stability of the device; It can drive the shearer (9) to move by tightening the traction rope (8) with one side winding and storage shaft (4) in the winding component and loosening the other side, make the traction rope (8) evenly wound around the side of the winding and storage shaft (4) through the adjusting component, and fix the winding and storage shaft (4) through the hydraulic cylinder (15) and the limit clamping column (3) to achieve the purpose of stable coal mining operation.

[0016] It should be noted that, unless otherwise clearly specified and limited, the terms "placed", "connected", and "joined" should be understood in a broad sense. For example, they can be fixed connection methods such as hemmed connection, rivet connection, pin connection, adhesive connection, and welded connection, or detachable connection methods such as threaded connection, snap connection, and hinge connection, or integral connection, or electrical connection, or directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0017] It should be further pointed out that when describing the above specific embodiments, for the sake of simplicity and clarity, only the differences from other embodiments are described. However, those skilled in the art should know that the above specific embodiments are also independent technical solutions in themselves.

Claims

1. A chain belt auxiliary traction device for a large dip angle coal mining face, comprising a winding assembly, an adjusting assembly and a coal shearer, characterized in that: The adjusting assembly is arranged on the winding assembly, and the shearer is fixedly connected to the winding assembly. The winding assembly can drive the shearer to move, and the adjusting assembly can evenly distribute and wind the traction rope on the surface of the winding and storage shaft. The winding assembly is composed of a positioning substrate, a fixing plate, a power motor, a winding and storage shaft, a baffle, a positioning groove, a limit clamping column, a connecting plate, a hydraulic cylinder, a traction rope and a Hall sensor. The fixing plate is fixedly connected to the top surface of the positioning substrate. Two power motors are fixedly arranged on the side surface of one of the fixing plates. One end of the winding and storage shaft passes through one fixing plate and is fixedly connected to the motor shaft of one power motor, and a support bearing is arranged between the winding and storage shaft and the fixing plate. The other end of the winding and storage shaft is rotatably connected to another fixing plate on the positioning substrate. The inner side surface of the baffle is fixedly connected to the side surface of the winding and storage shaft. A group of positioning grooves are formed in the other fixing plate, and a group of positioning grooves are formed in the baffle close to the fixing plate. Each positioning substrate corresponds to a group of limit clamping columns. One end of the connecting plate is fixedly connected to one end of multiple limit clamping columns in a group. One end of the hydraulic cylinder is fixedly connected to one end of the connecting plate. The other end of the hydraulic cylinder is fixedly connected to the side surface of the other fixing plate. One end of the traction rope is fixedly connected to the side surface of the winding and storage shaft. A plurality of small permanent magnets are equidistantly installed in the traction rope. The Hall sensor is fixedly arranged on the top surface of the positioning substrate and is placed near the middle of the limit constraint rod. The adjusting assembly is composed of a transmission shaft, a limit constraint rod, a transmission groove, a traction rope adjusting block, a sliding block and a guide roller. One end of the transmission shaft passes through one of the fixing plates and is fixedly connected to the motor shaft of the other power motor, and a support bearing is arranged between the transmission shaft and the fixing plate. The other end of the positioning groove is rotatably connected to the other fixing plate. A transmission groove is formed in the side surface of the transmission shaft. Two sliding holes are formed in the traction rope adjusting block. A sliding block is arranged in the sliding hole corresponding to the transmission shaft. The sliding block is rotatably connected to the traction rope adjusting block. The sliding block is slidably connected to the transmission groove. A placing groove is formed in the transmission groove. The guide roller is placed in the placing groove. Both ends of the guide roller are rotatably connected to the traction rope adjusting block. The traction rope passes through multiple groups of guide rollers from one end and extends to the other end between two guide rollers in a group. The other end of the traction rope is fixedly connected to one side surface of the shearer.

2. The chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, characterized in that Reinforcing ribs are spirally wound on the side surface of the traction rope. The cross section of the reinforcing rib is in a semi-circular structure. The width of the reinforcing rib gradually decreases in an arc shape from the end connected to the traction rope to the other end. The other end of the reinforcing rib is in an arc shape.

3. The chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, characterized in that A protective sleeve is sleeved on the side surface of the guide roller. The protective sleeve is in a cylindrical structure. The diameter of the protective sleeve gradually increases first and then decreases in an arc shape from one end to the other end. The protective sleeve is made of rubber.

4. The chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, characterized in that The positioning substrate is in a square plate structure. Each positioning substrate corresponds to two fixing plates. The two fixing plates are symmetrically arranged with respect to the positioning substrate, and there is a certain distance between the two fixing plates.

5. The chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, characterized in that The power motor is not placed between the two fixing plates. The baffle is in a circular ring structure. Each winding and storage shaft corresponds to two baffles, and the two baffles are respectively placed near both ends of the winding and storage shaft.

6. The chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, wherein The positioning groove is in a cylindrical structure. A plurality of positioning grooves are provided in a group, and the plurality of positioning grooves are arranged at equal intervals in the circumferential direction of the winding and storage shaft. The positioning groove formed in the fixing plate extends from one side surface of the positioning substrate to the other side surface opposite thereto. The positioning groove formed in the baffle extends from the side surface close to the fixing plate to half of its height. The plurality of limiting columns in a group are arranged at equal intervals in the circumferential direction of the winding and storage shaft. The limiting columns correspond to the positioning grooves on the fixing plate one by one, and the limiting columns pass through the positioning grooves on the fixing plate and are slidably connected to the fixing plate.

7. An auxiliary traction device for a chain belt in a large dip angle coal mining face according to claim 1, characterized in that The connecting plate is placed outside the two fixing plates corresponding to the positioning substrate. One end of the traction rope is placed between the two baffles. The limiting and constraining rod is placed between the Hall sensor and the winding and storage shaft.

8. A chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, characterized in that The limiting and constraining rod is placed between the two fixing plates on the same positioning substrate. The two ends of the limiting and constraining rod are fixedly connected to the side surfaces of the two fixing plates respectively. The limiting and constraining rod is placed below the transmission shaft and is arranged parallel to the transmission shaft. The transmission groove is composed of two threaded grooves. The two ends of the two threaded grooves correspond to each other and are communicated. The two threaded grooves are symmetrically arranged with respect to the plane passing through the central axis of the transmission shaft.

9. The chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, characterized in that The traction rope adjusting block is slidably connected to the transmission shaft and the limiting and constraining rod in cooperation with the sliding hole. Each shearer corresponds to two winding assemblies and adjusting assemblies, and the two winding assemblies and adjusting assemblies are symmetrically arranged with respect to the shearer.

10. The chain belt auxiliary traction device for a large dip angle coal mining face according to claim 1, characterized in that The cross-sectional diameter of the guide roller decreases first and then increases in an arc shape from one end to the other end. The central axis of the guide roller is arranged parallel to the central axis of the limiting and constraining rod. Each traction rope adjusting block corresponds to multiple groups of guide rollers. Two guide rollers are provided in each group. The central axes of the two guide rollers in a group are in a vertical plane. The multiple groups of guide rollers are arranged at equal intervals along the horizontal direction perpendicular to the central axis of the guide roller.

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