Pumped storage inclined shaft heavy traction system and using method thereof

Abstract

The invention provides a pumped storage inclined shaft heavy traction system which comprises a bottom plate, and fixing seats are arranged at the two ends of the bottom plate; a winding drum is arranged between the two fixed seats, and a steel rope is wound outside the winding drum; the steel rope is wound around the fixed pulley; a brake disc is arranged on the winding drum, a brake is arranged on the bottom plate, and the brake is connected with the brake disc; the number of the winding drums and the number of the steel ropes are both two, and the ends of the two steel ropes are connected with the same towed object. According to the invention, the double traction devices cooperate for traction, so that the stress peak value of a single rope is reduced, the system redundancy is improved, and the stability and safety during use are improved; the extending direction of the steel rope is guided and fixed, the steel rope is in a straight state as much as possible in the traction process, inclined pulling is avoided, and therefore the probability of breakage is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of traction equipment, and particularly relates to a heavy-duty traction system for a pumped-storage inclined shaft and a method for using the same. Background Art

[0002] The drilling, protection, tunneling and penstock construction of a pumped-storage inclined shaft are key engineering links in the construction of a pumped-storage power station, mainly involving the excavation, support of the inclined shaft and the installation operation of the penstock. During the whole construction process, in order to transport and stabilize equipment, materials, etc., a winch is needed to cooperate with the traction.

[0003] At present, in the drilling, protection, tunneling and penstock construction of a pumped-storage inclined shaft, the winch has problems such as high safety risks, insufficient equipment performance, low construction efficiency, poor environmental adaptability and difficult management and maintenance: For example, the existing winch uses single-rope traction, and the heavy-load traction capacity is limited. The steel rope is prone to breakage, causing a falling accident; at the same time, affected by the humid and narrow environment of the inclined shaft, the probability of breakage is increased. The existing winch uses manual detection and collaborative operation methods, which not only have low efficiency, restrict the construction progress, but also the detection results are not accurate enough, and problems cannot be found in time, posing a safety hazard. Summary of the Invention

[0004] The main purpose of the present invention is to provide a heavy-duty traction system for a pumped-storage inclined shaft and a method for using the same, so as to solve the problems that the traction rope is prone to breakage and inconvenient to detect.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: A heavy-duty traction system for a pumped-storage inclined shaft includes a bottom plate, and fixed seats are provided at both ends of the bottom plate; A drum is provided between the two fixed seats, and a steel rope is wound around the drum; A fixed pulley is also provided, and the steel rope passes around the fixed pulley; A brake disc is provided on the drum, and a second brake is provided on the bottom plate, and the second brake is connected to the brake disc; The number of the drums and the steel ropes is two, and the ends of the two steel ropes are connected to the same object to be towed.

[0006] In a preferred solution, a first motor is further included, and a first brake is provided on the output shaft of the first motor; The output shaft of the first motor is connected to the input shaft of the reducer, a rotating shaft is provided on the output shaft of the reducer, and the rotating shaft passes through the fixed seat and the drum; An encoder is provided at one end of the rotating shaft away from the reducer; The rotating shaft is fixedly connected to the drum; A camera is provided on the bottom plate, and the camera is aligned with the steel rope; A lubricator is provided on the steel rope.

[0007] In a preferred embodiment, the bottom plate is provided with a first wire guiding mechanism for controlling the position where the steel rope is wound into or released from the reel. The first wire guiding mechanism includes two fixing blocks fixedly connected to the bottom plate. A reciprocating threaded rod and a plurality of guide rods are arranged between the two fixing blocks. Both ends of the reciprocating threaded rod are smooth cylinders and are rotatably connected to the fixing blocks. One end of the reciprocating threaded rod is in transmission connection with the reel through a transmission mechanism. An movable seat is arranged between the two fixing blocks. The movable seat is slidably connected to the guide rods and is in transmission connection with the reciprocating threaded rod. The movable seat is provided with a guide wheel mechanism, and the steel rope bypasses the guide wheel mechanism.

[0008] In a preferred embodiment, the guide wheel mechanism includes a rotating sleeve rotatably arranged on the outer periphery of the movable seat through a bearing. The rotating sleeve is circular, and the axis of the rotating sleeve is parallel to the axis of the reel. Two fixing rods are arranged on the side surface of the movable seat, and connection blocks are arranged on the fixing rods. A first guide wheel is rotatably arranged between the two connection blocks; the axis of the first guide wheel is parallel to the axis of the reel. A second guide wheel is rotatably arranged on both fixing rods. The steel rope passes through between the two second guide wheels after bypassing the rotating sleeve and the first guide wheel.

[0009] In a preferred embodiment, the bottom plate is provided with a second wire guiding mechanism for guiding the position where the steel rope is sent out. The second wire guiding mechanism includes two fixing plates arranged on the bottom plate. A plurality of slide rails are arranged between the two fixing plates. One of the fixing plates is provided with a second motor, and a lead screw is arranged on the output shaft of the second motor. The connection part of the lead screw and the fixing plate is connected through a bearing. A sliding seat is slidably connected to the slide rail. The lead screw passes through the sliding seat and is in threaded connection with the sliding seat. The sliding seat is provided with two third guide wheels. The sliding seat is provided with a fourth guide wheel. A first sensor is arranged on the third guide wheel. The steel rope bypasses the third guide wheel and the fourth guide wheel.

[0010] In a preferred embodiment, the sliding seat is provided with a third brake. The third brake includes a support plate connected to the sliding seat, and the support plate is located above the two third guide wheels. An electromagnet is arranged on the top of the support plate. A brake block is arranged on the bottom of the support plate. A permanent magnet is provided inside the brake block; The magnet attracts the permanent magnet, causing the brake block to adhere to the bottom of the support plate; A friction pad is provided at the bottom of the brake block.

[0011] In a preferred embodiment, a stabilizing mechanism is provided on the bottom plate; The stabilizing mechanism includes a stabilizing seat fixedly connected to the bottom plate; A movable rod is slidably connected inside the stabilizing seat; One end of the movable rod extends out of the stabilizing seat and is provided with a connecting frame; The connecting frame is provided with a fifth guide wheel; the steel rope bypasses the fifth guide wheel; An activity plate is slidably sleeved on the outer periphery of the movable rod; A spring is provided between the activity plate and the connecting frame; A second sensor is provided inside the stabilizing seat, and the second sensor is located on the side of the activity plate away from the spring.

[0012] A method for using a pumped-storage inclined-shaft heavy traction system includes the following steps: S1. Install the bottom plate at the work station and set up 2 traction devices; S2. Connect the steel ropes of the 2 traction devices to the same item to be towed; S3. The traction devices complete the traction work according to the construction requirements; Monitor the tension F, the retracting and releasing speed V, and the image information P of the steel rope; S4. Determine whether there is a risk of breakage of the steel rope; S5. If there is a risk, stop the equipment for maintenance and replace the steel rope; Or If there is no risk, continue to work.

[0013] In a preferred embodiment, in S4, it includes the following steps: S41. Establish a neural network model, and the input layer is: , And , where n represents the monitoring time; S42. Obtain the fracture coefficient: ; Where Is the rated tension for stable use, Is the maximum tension with a risk of breakage, α and β are weight coefficients, Is the maximum moving speed of the steel rope, Is the defect coefficient obtained by the neural network model according to , ; Y is the output layer; S43. When , it represents that the device is in stable use; When , it represents that there is a risk of wire rope breakage, and attention should be paid and the machine should be shut down for maintenance; When , it represents that the wire rope needs to be replaced.

[0014] In the preferred solution, when , the braking structure locks the wire rope, which is the minimum tensile force value, representing that the wire rope is no longer in a tensioned state.

[0015] In the preferred solution, during the stable traction process, at this time, the and of the two wire ropes are the same; During the rope release process, when the of the two wire ropes are different, the smaller wire rope drops , or the larger wire rope increases , until the of the two wire ropes are the same; During the rope winding process, when the of the two wire ropes are different, the smaller wire rope increases , or the larger wire rope drops , until the of the two wire ropes are the same.

[0016] The present invention provides a pumped-storage inclined shaft heavy traction system and its usage method. By adopting the above solutions, the following beneficial effects are achieved: 1. The dual traction devices cooperate in traction, reducing the peak force on a single rope, enhancing the system redundancy, and increasing the stability and safety during use.

[0017] 2. Guide and fix the direction of the wire rope extension, making the wire rope as straight as possible during traction, avoiding inclined pulling, thereby reducing the probability of breakage.

[0018] 3. Buffer the wire rope, so that it can obtain a certain buffer when the wire rope receives an instantaneous force, reducing the probability of breakage.

[0019] 4. When the wire rope near the drum end breaks, it can be braked in time, with simple operation and convenient braking, ensuring the safety during use.

[0020] 5. Monitor the state of the wire rope in real time, and give timely reminders when there is a risk of breakage, thus avoiding sudden breakage of the wire rope and increasing the safety during use. Brief Description of the Drawings

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of an embodiment of the present invention; Figure 3 is an enlarged schematic structural diagram of an embodiment of the present invention; Figure 4 is a side view of the second lead mechanism of the present invention; Figure 5 is an enlarged schematic structural diagram of the movable seat of the present invention; Figure 6 is an enlarged schematic structural diagram of the stable structure of the present invention; Figure 7 is an enlarged schematic structural diagram of the third brake of the present invention.

[0022] In the figure: Base plate 1, fixed seat 101, camera 102, reel 2, rotating shaft 201, speed reducer 202, first brake 203, first motor 204, encoder 205, brake disc 3, second brake 301, steel rope 4, lubricator 401, fixed pulley 5, first lead mechanism 6, fixed block 601, transmission mechanism 602, guide rod 603, reciprocating threaded rod 604, movable seat 605, guide wheel mechanism 606, rotating sleeve 661, fixed rod 662, connecting block 663, first guide wheel 664, second guide wheel 665, second lead mechanism 7, fixing plate 701, slide rail 702, second motor 703, lead screw 704, sliding seat 705, third guide wheel 706, fourth guide wheel 707, first sensor 708, stabilizing mechanism 8, stabilizing seat 801, movable rod 802, connecting frame 803, fifth guide wheel 804, spring 805, movable plate 806, second sensor 807, third brake 9, support plate 901, electromagnet 902, brake block 903, permanent magnet 904, friction pad 905. Specific embodiments

[0023] Embodiment 1: As Figure 1 shown, a pumped storage inclined shaft heavy-duty traction system includes a base plate 1, and fixed seats 101 are provided at both ends of the base plate 1; a reel 2 is provided between the two fixed seats 101. The reel 2 is a winding drum of a winch, preferably a double-folded Ribas rope groove drum. A steel rope 4 is wound around the reel 2. The steel rope 4 is preferably a fiber core steel wire rope; A plurality of fixed pulleys 5 are further provided. The steel rope 4 bypasses the fixed pulleys 5. The fixed pulleys 5 are arranged at the corner positions of the pumped storage inclined shaft to guide the direction of the steel rope 4 and avoid contacting the ground; A brake disc 3 is provided on the drum 2, and a second brake 301 is provided on the base plate 1. The second brake 301 is connected to the brake disc 3. During use, the brake disc 3 is controlled by the second brake 301 to complete the braking of the drum 2. The second brake 301 is preferably a hydraulic clamp brake or an electromagnetic clamp brake. Preferably, the hydraulic clamp brake and the electromagnetic clamp brake are provided simultaneously, and the hydraulic clamp brake and the electromagnetic clamp brake are both connected and controlled by existing structures.

[0024] Both the drum 2 and the steel ropes 4 are two in number. The ends of the two steel ropes 4 are connected to the same object to be towed. Two sets of drums 2 and steel ropes 4 are used for coordinated towing, and the load is converged through the lifting device to reduce the peak force on a single rope and improve the system redundancy.

[0025] The object to be towed in this application includes but is not limited to the pressure steel pipe transport trolley, the manned and cargo-carrying trolley, and the construction trolley in the construction of the inclined shaft drilling and support tunneling and the pressure steel pipe of the pumped storage power station. Taking the pressure steel pipe transport trolley as an example: during the construction process, a trolley track is provided along the inclined shaft, and the transport trolley equipped with the pressure steel pipe moves along the trolley track. The ends of the two steel ropes 4 are connected to the same pressure steel pipe transport trolley, and the connection positions are on both sides of the same side of the pressure steel pipe transport trolley. Two sets of traction systems control the two steel ropes 4 to move synchronously to complete the stable transportation of the pressure steel pipe transport trolley. During the transportation process, it is necessary to control the winding and unwinding speed of the steel ropes 4 to ensure that the pressure steel pipe transport trolley does not tilt. The fixed pulley 5 is arranged at a position close to the trolley track.

[0026] In a preferred solution, a first motor 204 is further included. The first motor 204 is preferably a frequency converter motor, which is controlled and driven in an existing manner. A first brake 203 is provided on the output shaft of the first motor 204. The first brake 203 is preferably a mechanical brake, and the mechanical brake is connected and controlled by an existing structure. During use, the output shaft of the first motor 204 is braked by the first brake 203.

[0027] If the first motor 204 fails, such as being overloaded or overheated, the first brake 203 can still work independently, improving the system reliability. The hydraulic clamp brake in the second brake 301 adjusts the pressure through the proportional valve connected to it to achieve smooth braking. The electromagnetic clamp brake in the second brake 301 has a fast response and is used in occasions with frequent start and stop. With the triple fully independent braking device as the core guarantee, the stability and safety during the towing of the steel ropes 4 are ensured. The mechanical brake and the hydraulic clamp brake are jointly responsible for the normal start and stop operations of the winch, while the electromagnetic safety clamp brake serves as the "last line of defense" for safety braking and is in a standby state under normal working conditions and does not participate in the daily braking process.

[0028] When it is determined through Example 2 that there is a risk of wire rope breakage, the three sets of brakes will act instantaneously and cooperatively to achieve a millisecond-level response, ensuring rapid and safe braking of the mechanism and eliminating potential safety hazards.

[0029] The output shaft of the first motor 204 is connected to the input shaft of the reducer 202. The output shaft of the reducer 202 is provided with a rotating shaft 201. The reducer 202 is preferably a planetary reducer or an RV reducer. The rotating shaft 201 passes through the fixed seat 101 and the drum 2. One end of the rotating shaft 201 away from the reducer 202 is provided with an encoder 205. The encoder 205 adopts an existing encoder structure and is connected and controlled in an existing manner, and is used to monitor the rotation speed of the drum in real time and convert it into the wire rope winding and unwinding speed. The rotating shaft 201 is fixedly connected to the drum 2. When in use, starting the first motor 204 drives the rotating shaft 201 to rotate through the reducer 202, thereby driving the drum 2 to rotate, and the drum 2 can be wound and unwound.

[0030] The bottom plate 1 is provided with a camera 102, and the camera 102 is aligned with the wire rope 4. The image information of the wire rope 4 is monitored through the camera 102. Preferably, a high-definition camera is selected, and the number of cameras 102 is multiple.

[0031] A lubricator 401 is provided on the wire rope 4. The lubricator 401 selects an existing wire rope lubricator and is connected to a lubricating oil storage device and oils the wire rope 4 in an existing manner to lubricate the wire rope 4, reduce the friction on the wire rope 4, and reduce the probability of the wire rope 4 breaking.

[0032] In a further embodiment, such as Figure 2 、 3As shown in FIGS. 0 and 5, the bottom plate 1 is provided with a first wire guiding mechanism 6 for controlling the position where the steel wire rope 4 is wound into or released from the drum 2. Specifically, the first wire guiding mechanism 6 includes two fixing blocks 601 fixedly connected to the bottom plate 1. A reciprocating threaded rod 604 and a plurality of guide rods 603 are arranged between the two fixing blocks 601. The two ends of the reciprocating threaded rod 604 are smooth cylinders and are rotatably connected to the fixing blocks 601 to ensure that the reciprocating threaded rod 604 can rotate reciprocally normally. One end of the reciprocating threaded rod 604 is in transmission connection with the drum 2 through a transmission mechanism 602. The transmission mechanism 602 is preferably a belt transmission mechanism, that is, a driven wheel is arranged at the end of the reciprocating threaded rod 604, a driving wheel is arranged on the rotating shaft 201, and the driving wheel and the driven wheel are connected by a belt. The transmission ratio of the driving wheel and the driven wheel is determined according to actual needs. An activity seat 605 is arranged between the two fixing blocks 601. The activity seat 605 is slidably connected to the guide rods 603 and is in transmission connection with the reciprocating threaded rod 604. During the process of the rotating shaft 201 rotating to drive the drum 2 to rotate, the reciprocating threaded rod 604 will be driven to rotate synchronously through the transmission mechanism 602, thereby driving the activity seat 605 to reciprocate. A transmission tooth adapted to the reciprocating threaded rod 604 is arranged in the activity seat 605. The reciprocating threaded rod 604 and its working principle can adopt the existing technology. The transmission ratio of the driving wheel and the driven wheel needs to ensure that when the drum 2 rotates to wind or release the steel wire rope 4 from one side to the other side, the activity seat 605 is driven to move synchronously from one side of the reciprocating threaded rod 604 to the other side.

[0033] In a further embodiment, the activity seat 605 is provided with a guide wheel mechanism 606, and the steel wire rope 4 bypasses the guide wheel mechanism 606. Specifically, the guide wheel mechanism 606 includes a rotating sleeve 661 rotatably arranged on the outer periphery of the activity seat 605 through a bearing. The rotating sleeve 661 is circular, and the axis of the rotating sleeve 661 is parallel to the axis of the drum 2. The rotating sleeve 661 can rotate adaptively with the tension of the steel wire rope. Two fixing rods 662 are arranged on the side surface of the activity seat 605. Connecting blocks 663 are arranged on the fixing rods 662. A first guide wheel 664 is rotatably arranged between the two connecting blocks 663. The axis of the first guide wheel 664 is parallel to the axis of the drum 2. The steel wire rope 4 bypasses the first guide wheel 664 to guide the position where the steel wire rope 4 extends, so that the steel wire rope 4 can smoothly pass through the two second guide wheels 665. Both of the two fixing rods 662 are rotatably provided with second guide wheels 665. When in use, the steel wire rope 4 passes through between the two second guide wheels 665 after bypassing the rotating sleeve 661 and the first guide wheel 664. The two second guide wheels 665 can guide when the steel wire rope 4 is pulled left or right to ensure the stable transmission of the steel wire rope 4.

[0034] In a further embodiment, as Figure 2 、 3As shown in FIGS. 3 and 4, the bottom plate 1 is provided with a second wire guiding mechanism 7 for guiding the position where the steel rope 4 is sent out; specifically, the second wire guiding mechanism 7 includes two fixing plates 701 provided on the bottom plate 1; a plurality of sliding rails 702 are provided between the two fixing plates 701; a sliding seat 705 is slidably connected to the sliding rails 702. The sliding rails 702 are preferably T-shaped sliding rails, which can not only guide the sliding of the sliding seat 705 but also prevent the sliding seat 705 from disengaging.

[0035] One of the fixing plates 701 is provided with a second motor 703, and a lead screw 704 is provided on the output shaft of the second motor 703; the second motor 703 is preferably an existing stepper motor, which is controlled and connected in an existing manner; the connection between the lead screw 704 and the fixing plate 701 is connected through a bearing; the lead screw 704 passes through the sliding seat 705 and is threadedly connected to the sliding seat 705; during use, starting the second motor 703 can drive the lead screw 704 to rotate, thereby driving the sliding seat 705 to slide to adjust the position of the sliding seat 705; The sliding seat 705 is provided with two third guide wheels 706; the sliding seat 705 is provided with a fourth guide wheel 707; the steel rope 4 passes through the two third guide wheels 706 and then bypasses the fourth guide wheel 707; preferably, the steel rope 4 bypasses the fourth guide wheel 707 2-5 times on one of the fourth guide wheels 707 and then bypasses the fourth guide wheel 707; after the position of the sliding seat 705 changes, the position of the fourth guide wheel 707 can be changed, thereby changing the position where the steel rope 4 extends. By adjusting the position where the steel rope 4 extends, after the steel rope 4 is connected to the item to be towed, the two steel ropes 4 can be in a parallel state. Compared with the state of non-parallel pulling at both ends, the stability of towing the item to be towed is better in the parallel state, the radial force on the steel rope 4 can be reduced, and further the probability of the steel rope 4 being broken can be reduced.

[0036] The third guide wheel 706 is provided with a first sensor 708. The first sensor 708 is preferably a rotational speed sensor, which is used to detect the rotational speed of the third guide wheel 706, and then according to the diameter of the third guide wheel 706, using the relationship between linear velocity and rotational speed, the winding and unwinding speed of the steel rope 4 can be obtained.

[0037] In a further embodiment, as Figure 2 、 3As shown in FIGS. 7 and 7, the sliding seat 705 is provided with a third brake 9; the third brake 9 includes a support plate 901 connected to the sliding seat 705, and the support plate 901 is located above the two third guide wheels 706; an electromagnet 902 is provided on the top of the support plate 901; the electromagnet 902 is an existing electromagnet, which is connected and controlled in an existing manner. A brake block 903 is provided at the bottom of the support plate 901. The ground of the brake block 903 is composed of two concave arcs, and the concave arcs are adapted to the third guide wheels 706; a permanent magnet 904 is provided inside the brake block 903; the electromagnet 902 adsorbs the permanent magnet 904, so that the brake block 903 is attached to the bottom of the support plate 901; a friction pad 905 is provided at the bottom of the brake block 903, and the friction pad 905 is made of a highly wear-resistant material. Among them, the support plate 901 is made of a material that cannot be adsorbed by a magnet. When braking is required, the electromagnet of the third brake 9 loses power, and the brake block 903 moves downward under the action of gravity. At the same time, the steel rope 4 is adsorbed and pressed through the permanent magnet 904. The total braking time ≤ 0.5 seconds. At this time, the brake block 903 is stuck between the two third guide wheels 706, so as to clamp the steel rope 4, and the third guide wheels 706 cannot rotate normally. The force applied to the steel rope 4 to move will make the brake block 903 clamp more tightly between the two third guide wheels 706, thereby preventing the steel rope 4 from continuing to move and completing the braking of the steel rope 4; thus, when the steel rope 4 breaks away from or breaks at the reel 2, the steel rope 4 can be braked in time, ensuring safety during use.

[0038] In a further embodiment, as Figure 2 , 3 and 6 show, the bottom plate 1 is provided with a stabilizing mechanism 8; specifically, the stabilizing mechanism 8 includes a stabilizing seat 801 fixedly connected to the bottom plate 1; a movable rod 802 is slidably connected inside the stabilizing seat 801; the movable rod 802 slides inside the stabilizing seat 801; one end of the movable rod 802 extends out of the stabilizing seat 801 and is provided with a connecting frame 803. The connecting frame 803 is an existing wheel frame, and a fifth guide wheel 804 is provided on the connecting frame 803; the steel rope 4 bypasses the fifth guide wheel 804; a movable plate 806 is slidably sleeved on the outer periphery of the movable rod 802, and a spring 805 is provided between the movable plate 806 and the connecting frame 803; a second sensor 807 is provided inside the stabilizing seat 801. The second sensor 807 is preferably an existing pressure sensor, which is connected, detected and transmits signals in an existing manner. The second sensor 807 is located on the side of the movable plate 806 away from the spring 805. During use, affected by the tension of the steel rope 4, it will push the fifth guide wheel 804, the connecting frame 803 and the movable rod 802 to move, thereby compressing the spring 805. At the same time, the tension will be transmitted to the second sensor 807 through the spring 805 and the movable plate 806, and the second sensor 807 can detect the force. When the steel rope 4 is suddenly stressed and the tension suddenly changes, the changing force will act on the spring 805 to make the spring 805 expand and contract, thereby performing a certain buffer, so as to relieve the influence on the steel rope 4 when it is subjected to instantaneous tension changes and reduce the probability of the steel rope 4 breaking.

[0039] The camera 102, encoder 205, first motor 204, first brake 203, second brake 301, second motor 703, first sensor 708, second sensor 807, and electromagnet 902 are all connected to existing control devices, such as a controller with a human-machine interface, a control chip, etc.

[0040] Embodiment 2: A method for using a pumped-storage inclined-shaft heavy traction system includes the following steps: S1. Fix the base plate 1 to the inclined-shaft construction work station through anchor bolts, adjust the level error ≤ 0.5 mm / m, and arrange the two sets of traction devices symmetrically with a spacing of 3 - 5 m; S2. Connect the ends of the two sets of steel ropes 4 to the hoist of the object to be towed through wedge-shaped joints to ensure uniform distribution of the hoist load; S3. The traction device completes the traction work according to the construction requirements; Monitor the tension F, the winding and unwinding speed V, and the image information P of the steel rope 4; The tension F is detected and obtained by the second sensor 807, the winding and unwinding speed V is detected and obtained by the first sensor 708, and the image information P is obtained by shooting with the camera 102.

[0041] S4. Determine whether there is a risk of breakage of the steel rope 4; S41. Establish a convolutional neural network model, where the input layer is: , and , where n represents the monitoring moment; the hidden layer uses the ReLU activation function; S42. Obtain the fracture coefficient: ; where is the rated tension for stable use, is the maximum tension with a risk of breakage, α and β are weight coefficients, is the maximum speed of the movement of the steel rope 4, is the defect coefficient obtained by the neural network model according to , , ; for example, α = 0.3, β = 0.2.

[0042] Y is the output layer; S43. When , it represents stable use of the equipment; When , it represents that there is a risk of breakage of the steel rope 4, and attention is needed and the machine should be stopped for maintenance, such as adding lubricating oil, etc.; When , indicating that the steel rope 4 needs to be replaced.

[0043] Among them ,

[0044] S5. There is a risk that the equipment stops for maintenance and the steel rope 4 is replaced; Or There is no risk, and work continues.

[0045] During the training of the convolutional neural network, multiple groups of steel rope pictures and corresponding fracture coefficients are obtained as experimental examples for training.

[0046] In the preferred solution, when , the braking structure locks the steel rope 4, is the minimum tensile value, indicating that the steel rope 4 is no longer in a tensioned state. At this time, it is judged that the steel rope 4 may have a fracture problem, and automatic locking ensures safety during use.

[0047] In a further embodiment; during the process of stable traction, at this time, the and of the two steel ropes 4 are the same; During the rope-laying process, when the of the two steel ropes are different, the smaller steel rope 4 decreases , or the larger steel rope 4 increases , until the of the two steel ropes are the same; During the rope-winding process, when the of the two steel ropes are different, the smaller steel rope 4 increases , or the larger steel rope 4 decreases , until the of the two steel ropes are the same.

[0048] Thus, through the above control process, the forces on the two traction steel ropes 4 are always kept in the same state to achieve force balance and ensure the stability of traction; and it can avoid the skewing and uneven loading of the item being towed, and further avoid situations such as derailment and tipping, ensuring the stability of traction.

[0049] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A heavy-duty traction system for a pumped-storage inclined shaft, characterized in that: It includes a bottom plate (1), and fixed seats (101) are provided at both ends of the bottom plate (1); A reel (2) is provided between the two fixed seats (101), and a steel rope (4) is wound around the reel (2); A number of fixed pulleys (5) are also provided, and the steel rope (4) bypasses the fixed pulleys (5); A brake disc (3) is provided on the reel (2), and a second brake (301) is provided on the bottom plate (1), and the second brake (301) is connected to the brake disc (3); The number of the reel (2) and the steel rope (4) is two each, and the ends of the two steel ropes (4) are connected to the same object to be towed.

2. The heavy-duty traction system for a pumped-storage inclined shaft according to claim 1, wherein: It also includes a first motor (204), and a first brake (203) is provided on the output shaft of the first motor (204); The output shaft of the first motor (204) is connected to the input shaft of a speed reducer (202), a rotating shaft (201) is provided on the output shaft of the speed reducer (202), and the rotating shaft (201) passes through the fixed seat (101) and the reel (2); An encoder (205) is provided at one end of the rotating shaft (201) far from the speed reducer (202); The rotating shaft (201) is fixedly connected to the reel (2); A camera (102) is provided on the bottom plate (1), and the camera (102) is aligned with the steel rope (4); A lubricator (401) is provided on the steel rope (4).

3. A heavy-duty traction system for a pumped-storage inclined shaft according to any one of claims 1 or 2, characterized in that: The bottom plate (1) is provided with a first wire guiding mechanism (6) for controlling the position where the steel rope (4) is wound into or released from the reel (2); The first wire guiding mechanism (6) includes two fixed blocks (601) fixedly connected to the bottom plate (1); A reciprocating threaded rod (604) and a number of guide rods (603) are provided between the two fixed blocks (601); Both ends of the reciprocating threaded rod (604) are smooth cylinders and are rotatably connected to the fixed blocks (601); One end of the reciprocating threaded rod (604) is in transmission connection with the reel (2) through a transmission mechanism (602); An activity seat (605) is provided between the two fixed blocks (601), the activity seat (605) is slidably connected to the guide rods (603), and the activity seat (605) is in transmission connection with the reciprocating threaded rod (604); The activity seat (605) is provided with a guide wheel mechanism (606), and the steel rope (4) bypasses the guide wheel mechanism (606).

4. The heavy traction system for a pumped-storage inclined shaft according to claim 3, wherein: The guide wheel mechanism (606) includes a rotating sleeve (661) rotatably provided on the outer circumference of the activity seat (605) through a bearing; The rotating sleeve (661) is annular, and the axis of the rotating sleeve (661) is parallel to the axis of the reel (2); Two fixed rods (662) are provided on the side surface of the activity seat (605), and connection blocks (663) are provided on the fixed rods (662); A first guide wheel (664) is rotatably provided between the two connection blocks (663); the axis of the first guide wheel (664) is parallel to the axis of the reel (2); Second guide wheels (665) are rotatably provided on both of the two fixed rods (662); The steel rope (4) passes out between the two second guide wheels (665) after bypassing the rotating sleeve (661) and the first guide wheel (664).

5. A heavy-duty pumping storage inclined shaft traction system according to any one of claims 1 or 2, characterized in that: The bottom plate (1) is provided with a second wire guiding mechanism (7) for guiding the position where the steel rope (4) is sent out; The second wire guiding mechanism (7) includes two fixing plates (701) provided on the bottom plate (1); A plurality of slide rails (702) are provided between two fixing plates (701); One of the fixing plates (701) is provided with a second motor (703), and a lead screw (704) is provided on the output shaft of the second motor (703); The connection between the lead screw (704) and the fixing plate (701) is connected by a bearing; The slide rail (702) is slidably connected with a sliding seat (705); The lead screw (704) passes through the sliding seat (705) and is threadedly connected to the sliding seat (705); The sliding seat (705) is provided with two third guide wheels (706); The sliding seat (705) is provided with a fourth guide wheel (707); The third guide wheel (706) is provided with a first sensor (708); The steel rope (4) bypasses the third guide wheel (706) and the fourth guide wheel (707).

6. The heavy-duty traction system for a pumped-storage inclined shaft according to claim 5, characterized in that: The sliding seat (705) is provided with a third brake (9); The third brake (9) includes a support plate (901) connected to the sliding seat (705), and the support plate (901) is located above the two third guide wheels (706); An electromagnet (902) is provided at the top of the support plate (901); A brake block (903) is provided at the bottom of the support plate (901); A permanent magnet (904) is provided inside the brake block (903); The magnet (902) adsorbs the permanent magnet (904) to make the brake block (903) stick to the bottom of the support plate (901); A friction pad (905) is provided at the bottom of the brake block (903).

7. A heavy-duty traction system for a pumped-storage inclined shaft according to any one of claims 1 or 2, characterized in that: The bottom plate (1) is provided with a stabilizing mechanism (8); The stabilizing mechanism (8) includes a stabilizing seat (801) fixedly connected to the bottom plate (1); A movable rod (802) is slidably connected inside the stabilizing seat (801); One end of the movable rod (802) extends out of the stabilizing seat (801) and is provided with a connecting frame (803); The connecting frame (803) is provided with a fifth guide wheel (804); the steel rope (4) bypasses the fifth guide wheel (804); An activity plate (806) is slidably sleeved on the outer periphery of the movable rod (802); A spring (805) is provided between the activity plate (806) and the connecting frame (803); A second sensor (807) is provided inside the stabilizing seat (801), and the second sensor (807) is located on the side of the activity plate (806) away from the spring (805).

8. A method for using the heavy-duty pumping storage inclined shaft traction system according to any one of claims 1-7, characterized in that: It includes the following steps: S1. Install the bottom plate (1) at the work station and set 2 traction devices; S2. Connect the steel ropes (4) of the 2 traction devices to the same item to be towed; S3. The traction device completes the traction work according to the construction requirements; Monitor the tension F, the retracting and releasing speed V and the image information P of the steel rope (4); S4. Judge whether there is a risk of breakage of the steel rope (4); S5. If there is a risk, the equipment stops for maintenance and replaces the steel rope (4); Or If there is no risk, continue to work.

9. The usage method of a heavy-duty traction system for a pumped-storage inclined shaft according to claim 8, characterized in that: at In S4, it includes the following steps: S41. Establish a neural network model. The input layer is: , and , where n represents the monitoring time. S42. Obtain the fracture coefficient: ； Among them, is the rated tensile force for stable use, is the maximum tensile force at which there is a risk of fracture, and α and β are weight coefficients, is the maximum moving speed of the steel rope (4), is the defect coefficient obtained by the neural network model according to ; ; Y is the output layer; S43. When , it represents that the device is stably used; When , it means that there is a risk of breakage of the steel rope (4), and attention should be paid and the machine should be stopped for maintenance; When , it means that the steel rope (4) needs to be replaced.

10. The method for using a heavy-duty traction system for a pumped-storage inclined shaft according to claim 8, characterized in that: When the braking structure locks the steel rope (4), is the minimum tensile force value, representing that the steel rope (4) is no longer in a tensioned state; During the stable traction process, at this time, the and of the two steel ropes (4) are the same; During the rope-laying process, when the of the two steel ropes is different, the smaller steel rope (4) lowers , or the larger steel rope (4) increases , until the of the two steel ropes is the same; During the rope retraction process, when the of the two steel ropes is different, the smaller steel rope (4) increases , or the larger steel rope (4) decreases , until the of the two steel ropes is the same.

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