Hydraulic capstan for cableway laying and method for achieving cableway laying through hydraulic capstan

Abstract

The invention relates to the technical field of hydraulic capstan, in particular to a hydraulic capstan for cableway laying and a method for achieving cableway laying through the hydraulic capstan. Lateral supporting frames are fixedly arranged on the front side and the rear side of the top of the machine connecting rack correspondingly. A first winch unit and a second winch unit are installed on the left side and the right side of the top of the connecting machine frame respectively, a driving unit is arranged between the first winch unit and the second winch unit, and the first winch unit and the second winch unit are matched to achieve winding of a steel wire rope. The two winch units are synchronously driven by the single driving unit, and a built-in braking system is matched, so that the problems of asynchronous driving and insufficient braking force of the traditional double winches are solved from the double dimensions of power transmission and braking guarantee, and the safety and stability of large-load cableway laying operation are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic winch, in particular to a hydraulic winch for cableway laying and a method for cableway laying using the same. BACKGROUND

[0002] In various construction scenes such as drilling, oil, port, mine, offshore platform, construction site, etc., cableway laying and cable recovery operation are the core processes to ensure the progress of the project, and their operation efficiency, bearing stability and operation safety are directly related to the overall construction progress and engineering quality.

[0003] At present, the core equipment for cableway laying in the industry is mainly hydraulic winch, and the traditional cableway laying method mainly relies on hydraulic winch with turbine worm pair transmission mechanism. The motor is driven by the hydraulic system, and the power is transmitted to the drum through the reduction mechanism, and then the traction, laying and recovery operation of the cable are realized.

[0004] For example, the patent document with the patent application number CN202120376178.1 of the applicant's prior application discloses a double-bearing cable loop traction cableway winch machine, which mainly includes a rack, a turbine worm reduction mechanism installed on the rack, a drum connected with the output end of the reduction mechanism, a hydraulic drive assembly providing power for the equipment, and a control device for controlling the operation process. Through the loop traction of the double-bearing cable and the winding and unwinding action of the drum, the cableway laying operation is completed.

[0005] From the description of the above scheme, it can be seen that the following disadvantages exist when it is used: The transmission efficiency of the turbine worm pair transmission mechanism is low, and the bearing limit is limited. Its bearing capacity is poor, and it is difficult to meet the high-efficiency operation demand of large-tonnage cableway laying or complex field working conditions, and the transmission process is easy to appear jam, which affects the operation continuity.

[0006] Therefore, it is necessary to design a hydraulic winch for cableway laying with high transmission efficiency, strong bearing capacity, simple installation and maintenance, and better operation precision and safety, and a method for cableway laying using the same. SUMMARY

[0007] The hydraulic winch for cableway laying comprises a machine connecting frame, lateral support frames fixedly arranged on the top of the machine connecting frame, first and second winch units installed on the left and right sides of the top of the machine connecting frame, driving units arranged between the first and second winch units, and the first and second winch units cooperatively winding the steel wire rope.

[0008] On the basis of any of the above technical solutions, the first winch unit comprises a first winch drum, the two ends of the central shaft of the first winch drum are respectively fitted and installed in the corresponding bearing holes, the outer side wall of the first winch drum is provided with a rope groove for winding the steel wire rope, and a first gear is integrally and fixedly connected to the front end outer side wall of the first winch drum, and the first gear is used for meshing and connecting with the output end of the driving unit.

[0009] On the basis of any of the above technical solutions, the second winch unit comprises a second winch drum, the two ends of the central shaft of the second winch drum are respectively fitted and installed in the corresponding bearing holes, the outer side wall of the second winch drum is provided with a rope groove for winding the steel wire rope, the inner surface of the rope groove is provided with an anti-skid unit, and a second gear is integrally and fixedly connected to the front end outer side wall of the second winch drum, and the second gear is used for meshing and connecting with the output end of the driving unit.

[0010] On the basis of any of the above technical solutions, the driving unit comprises a total driving gear arranged between the first and second gears, the front end of the gear shaft of the total driving gear is movably inserted through the support hole of the lateral support frame and connected with the output shaft of the motor fixed on the outer side wall of the lateral support frame, the input end of the motor is connected with the external power source, and the motor is provided with a hydraulic system.

[0011] On the basis of any of the above technical solutions, the first and second gears are completely identical in structure.

[0012] On the basis of any of the above technical solutions, the model of the motor is A2FE160 / 61W-VAL100.

[0013] The application further provides a method for laying a cableway by using the above hydraulic winch for cableway laying, comprising the following steps: S1, a hydraulic winch is fixedly installed at a designated work position of cableway laying, so that the first winch unit and the second winch unit of the hydraulic winch correspond to two traction ends of the cableway steel wire rope respectively; S2, one end of the cableway steel wire rope is wound in the rope groove of the first winch drum, and the other end is wound in the rope groove of the second winch drum, so that the steel wire rope forms a winding structure between the two winch drums; S3, the driving unit of the hydraulic winch is started, the driving unit simultaneously drives the first winch unit and the second winch unit to rotate synchronously, and the traction, tensioning and laying operation of the cableway steel wire rope are realized through the wound steel wire rope; S4, the tension and winding state of the steel wire rope are monitored in real time during the laying process, and the rotation speed of the driving unit and the pressure of the hydraulic system are adjusted according to the monitoring result; S5, after the cableway steel wire rope is laid to the preset position, the driving unit is turned off, the connection between the steel wire rope and the two winch drums is released, and the cableway laying operation is completed.

[0014] On the basis of any one of the above technical solutions, further optimization is that in step S3, the driving unit simultaneously engages the first gear and the second gear through the total drive gear, drives the first winch drum and the second winch drum to rotate at the same speed and opposite directions, and maintains the tension balance of the eight-shaped winding structure.

[0015] On the basis of any one of the above technical solutions, further optimization is that in step S4, a tension sensor is used to monitor the tension of the steel wire rope, and when the tension value exceeds the rated tension of 200KN, the hydraulic system of the driving unit automatically adjusts the pressure and reduces the rotation speed of the winch unit.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: 1. The present application synchronously drives two winch units by a single driving unit, and matches a brake system, which solves the problem of asynchronous driving of traditional double winch and insufficient braking force from the aspects of power transmission and braking, greatly improves the safety and stability of large load cableway laying operation.

[0017] 2. The present application cooperates with the collaborative winding design of two winch units, combines the rope groove anti-skid structure and the adaptive application of special anti-skid lubricant, effectively avoids the slipping and deviation phenomenon of the steel wire rope during traction, significantly improves the orderliness and traction accuracy of the steel wire rope winding, and reduces the local wear risk of the steel wire rope.

[0018] 3. The present application adopts integrated rack and modular unit layout, organically integrates driving, braking and traction components, simplifies the on-site installation process of the equipment, reduces the space limitation of the construction site, adapts to complex mountain and other diversified cableway laying conditions, and reduces the on-site construction difficulty.

[0019] 4. The application realizes precise matching of traction, rotation speed and braking effect through parameter collaborative optimization of the driving system and the hydraulic system, greatly improves the operation efficiency of cableway laying, reduces power loss, and meets the industry development demand of energy saving and consumption reduction, compared with the traditional single winch or split type double winch.

[0020] 5. The symmetrically designed winch unit and the universal component configuration in the application not only ensure the balance of power transmission and the dynamic balance of equipment operation, but also improve the universal interchangeability of spare parts, reduce the equipment maintenance cost in later period, and prolong the service life of the overall equipment. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, various elements or components are not necessarily drawn according to the actual proportion.

[0022] Figure 1 It is a schematic view of the front structure of the application.

[0023] Figure 2 It is a schematic view of the top structure of the application.

[0024] Figure 3 It is a schematic view of the side structure of the application.

[0025] Figure 4 It is a hydraulic control principle diagram of the hydraulic system of the application.

[0026] Figure 5 It is a schematic view of the product structure of the application.

[0027] In the drawings, 1 is an oil tank, 2 is a power source, 3 is a pump, 4 is a filter, 5 is a safety valve, 6 is an electromagnetic reversing valve, 7 is a motor, 8 is a protection valve group, 81 is an overflow valve, 82 is a check valve, 9 is a winch, 901 is a first winch drum, 902 is a second winch drum, 903 is a center shaft, 10 is a braking system, 11 is a machine connecting frame, 12 is a lateral support frame, 13 is a total drive gear, 14 is a first gear, 15 is a second gear, and 16 is a gear shaft. DETAILED DESCRIPTION

[0028] The embodiments of the technical solutions of the application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the application, and therefore only serve as examples, but cannot limit the protection scope of the application. The specific structure of the application is shown in the drawings. Figures 1-5

[0029] ​Example 1: A hydraulic winch for cableway laying includes a connecting frame 11; lateral support frames 12 are fixedly installed on the front and rear sides of the top of the connecting frame 11; a first winch unit and a second winch unit with a braking system 10 at the rear end are respectively installed on the left and right sides of the top of the connecting frame 11. The two ends of the central shaft 903 of the first winch unit and the second winch unit are movably inserted into the bearing holes of the corresponding lateral support frames 12, and a drive unit is provided between the first winch unit and the second winch unit. The output end of the drive unit is used to drive the first winch unit and the second winch unit simultaneously, and the input end of the drive unit is used to connect to an external power source 2. The first winch unit and the second winch unit cooperate to wind the wire rope.

[0030] It should be explained that the connecting frame 11 serves as the overall rigid load-bearing foundation, and the lateral support frame 12 provides precise coaxial rotational support and positioning for the two winch units. The drive unit, as a single power source 2, synchronously transmits power to the first winch unit and the second winch unit, enabling the two winch units to rotate at the same speed and coordinate with each other, thereby achieving synchronous winding and traction of the cableway wire rope. From the structural design perspective, this avoids the speed difference problem of traditional dual-power-source 2 drive.

[0031] It should be further explained that integrating the frame, support structure, and drive system into one unit greatly simplifies the on-site installation process, reduces the spatial constraints on equipment layout at the construction site, and adapts to the working conditions required for complex mountain cableway laying. It abandons the traditional mode of separate control by two power sources, eliminating the speed difference between the two winch units at the source, ensuring uniform tension distribution during wire rope traction, and avoiding wire rope damage caused by localized stress concentration. The winch unit and drive unit are independently arranged yet work collaboratively, facilitating later maintenance, repair, and component replacement, reducing equipment operation and maintenance costs. Furthermore, the structural coupling improves power transmission efficiency; compared to the traditional split-type dual winch structure, power loss is significantly reduced, and the stability of equipment operation is greatly improved.

[0032] The braking system 10 is a spring-loaded braking system 10 in the prior art, which will not be described in detail here.

[0033] Based on any of the above technical solutions, the following further optimization is made: the first winch unit includes a first winch drum 901, the two ends of the central shaft 903 of the first winch drum 901 are respectively fitted into corresponding bearing holes, the outer side wall of the first winch drum 901 is provided with a rope groove for winding steel wire rope, and a first gear 14 is integrally fixed on the front outer side wall of the first winch drum 901, the first gear 14 is used to mesh with the output end of the drive unit.

[0034] It should be explained that the first winch drum 901 achieves low-friction and stable rotation through a high-precision fit between the central shaft 903 and the bearing hole of the lateral support frame 12; the rope groove provides a dedicated winding trajectory for the wire rope, limiting the axial displacement of the wire rope; the first gear 14, as a power receiving component, rigidly meshes with the output end of the drive unit, transmitting power to the first winch drum 901 without gaps, driving it to rotate and achieve orderly winding of the wire rope.

[0035] It should be further explained that the winding path of the wire rope is limited to prevent the wire rope from deviating or overlapping during the traction process, ensuring the orderly winding and adapting to the operational requirements of high-load, long-distance cableway traction; the first gear 14 is directly machined into the drum as a single unit, eliminating the assembly gap between the gear and the drum, improving the response speed of power transmission, and avoiding tension fluctuations caused by power lag.

[0036] Based on any of the above technical solutions, a further optimization is made as follows: the second winch unit includes a second winch drum 902, the two ends of the central shaft 903 of the second winch drum 902 are respectively fitted into corresponding bearing holes, the outer side wall of the second winch drum 902 is provided with a rope groove for winding steel wire rope, the inner surface of the rope groove is provided with an anti-slip unit, and a second gear 15 is integrally fixed to the front outer side wall of the second winch drum 902, the second gear 15 is used to mesh with the output end of the drive unit.

[0037] It should be explained that the structure of the second winch drum 902 is completely symmetrical with that of the first winch unit. It achieves stable rotation through the precise engagement of the bearing hole of the central shaft 903 and the lateral support frame 12. The rope groove realizes the guiding function of the wire rope. The second gear 15 rigidly meshes with the output end of the drive unit to receive power and drive the second winch drum 902 to rotate, forming a cooperative traction mechanism with the first winch unit to jointly complete the winding operation of the wire rope.

[0038] It should be further explained that this structure forms a mirror layout with the first winch unit, ensuring balanced force on both winch units, avoiding eccentric vibration during equipment operation, and extending the service life of the equipment; secondly, synchronous power reception, through the meshing of the second gear 15 with the drive unit, achieves the same power input as the first winch unit, ensuring consistent rotational speed of the two drums and maintaining the balance of wire rope traction tension; thirdly, the dual-drum collaborative winding, in conjunction with the first winch unit, can achieve bidirectional traction or figure-eight winding of the wire rope, expanding the equipment's operating modes and adapting to the laying requirements of different types of cableways; the dynamic balance optimization brought by the symmetrical structure significantly reduces equipment operating noise, improves equipment operating stability, and reduces interference with the surrounding construction environment.

[0039] Based on any of the above technical solutions, a further optimization is made as follows: the drive unit includes a main drive gear 13 disposed between the first gear 14 and the second gear 15. The front end of the gear shaft 16 of the main drive gear 13 moves through the support hole of the lateral support frame 12 and is connected to the output shaft of the motor 7 fixed on the outer side wall of the lateral support frame 12. The input end of the motor 7 is connected to the external power source 2 and is equipped with a hydraulic system.

[0040] It should be explained that the motor 7, as the core of power output, is driven by the external power source 2 and its speed and torque are flexibly adjusted through the hydraulic system; the main drive gear 13 is installed between the first gear 14 and the second gear 15, and its gear shaft 16 is rigidly connected to the output shaft of the motor 7. After receiving the power from the motor 7, it transmits the power equally to the first gear 14 and the second gear 15 through gear meshing, thereby driving the drums of the two winches 9 to rotate synchronously, realizing the one-to-two synchronous distribution of power, and ensuring that there is no difference in the power input of the two winch units.

[0041] It should be further explained that, through the intermediate meshing of the main drive gear 13, power is ensured to be transmitted equally to the two winch units, achieving differential synchronous drive and solving the technical problem of asynchronous drive of traditional double winches 9; the supporting hydraulic system can flexibly adjust the output parameters of motor 7 to meet the operational requirements of different loads and speeds, and adapt to the complex and ever-changing cableway laying conditions; the drive unit is arranged between the two winch units, shortening the power transmission path, reducing power loss, and improving the energy utilization efficiency of the equipment; the rigid transmission method of gear meshing has higher transmission efficiency and stronger resistance to impact loads compared with traditional chain or belt drives, and can cope with sudden load impacts during cableway laying.

[0042] Based on any of the above technical solutions, a further optimization is that the first gear 14 and the second gear 15 have completely identical structures.

[0043] It should be explained that the first gear 14 and the second gear 15 adopt the same module, number of teeth, tooth width and tooth profile angle design. When the main drive gear 13 meshes with it, the rotational angular velocity of the two gears is exactly the same, thereby driving the two winch drums 9 to run at the same speed. This avoids the speed difference caused by the difference in gear parameters, ensures the balance of the wire rope traction tension, and ensures the synchronous drive effect from the perspective of transmission components.

[0044] It should be further explained that when gears with the same structure mesh, the power transmission rate is consistent, ensuring that the two winch drums rotate synchronously and maintaining the stability of the wire rope traction tension. The identical gear structure allows for the interchangeability of spare parts, reducing the later maintenance costs and spare parts reserve pressure of the equipment. In addition, when gears with the same parameters mesh with the main drive gear 13, the meshing clearance and stress state are consistent, avoiding the situation of unilateral gear overload wear and extending the service life of the transmission system. This significantly reduces the dynamic load fluctuation of the transmission system, improves the meshing stability of the gears, and reduces transmission noise and vibration.

[0045] Based on any of the above technical solutions, a further optimization is made: the model of the motor 7 is A2FE160 / 61W-VAL100.

[0046] Based on any of the above technical solutions, a further optimization is made: the rated pulling force of the hydraulic winch is 200KN.

[0047] It should be explained that through the coordinated optimization design of core parameters such as hydraulic system pressure, motor 7 output torque, gear transmission ratio and drum diameter, the maximum stable traction force of the hydraulic winch reaches the preset rated value. Within this tension range, all components of the equipment are in a safe stress range and can operate stably for a long time, meeting the load requirements of laying long-span cableways.

[0048] It should be further explained that the above solution has the following functions: First, load adaptability: the preset rated tension can cover the laying needs of most passenger and freight ropeways, and has a wide range of working condition adaptability; Second, safe stress limitation: the rated tension parameters are clearly defined, providing clear operating thresholds for on-site operations and avoiding equipment damage and wire rope damage caused by overload operations; Low energy consumption operation characteristics under rated tension: compared with traditional equipment of the same tension level, energy consumption is significantly reduced, which is in line with the industry development trend of energy conservation and consumption reduction.

[0049] Based on any of the above technical solutions, a further optimization is made: the rated flow rate of the hydraulic winch is 140L / min.

[0050] It should be explained that the rated flow rate is the optimal working oil flow rate provided by the hydraulic system to the motor 7. This flow rate parameter is precisely matched with the displacement and speed requirements of the motor 7, which can ensure that the motor 7 outputs stable torque and speed, while ensuring the heat dissipation efficiency and pressure stability of the hydraulic system, and avoiding problems such as system overheating due to excessive flow rate or insufficient power due to insufficient flow rate.

[0051] It should be further explained that the above solution has the following functions: stable power output, the preset rated flow rate matches the working requirements of motor 7, ensuring the stability of the output torque of motor 7 and providing continuous and reliable power to the winch unit; balanced system heat dissipation, the circulation rate of hydraulic oil at this flow rate is moderate, which can effectively remove the heat generated by the system operation, maintain the system temperature within a safe range, and avoid hydraulic component failure caused by high temperature; and greatly improves the response speed of the hydraulic system, enabling it to quickly respond to load changes and achieve precise control of traction force.

[0052] Based on any of the above technical solutions, a further optimization is made: the rated speed of the hydraulic winch is 1.8 r / min.

[0053] It should be explained that the rated speed is the optimal working speed of the winch's 9 drum. Through the precise matching of hydraulic system flow regulation and gear reduction ratio, the drum speed is stabilized at the preset value. At this speed, the winding speed and tension control accuracy of the wire rope reach the best balance, meeting the process requirements of cableway laying and avoiding problems such as tension loss due to excessive speed or low efficiency due to excessively slow speed.

[0054] It should be further explained that the above-mentioned solution provides precise tension control. The lower rated speed reduces the inertial impact during the wire rope traction process, improves the accuracy of tension control, ensures the quality of cableway laying, and meets the construction standards of high-precision cableway projects. The solution also offers suitable operational efficiency, with the preset speed balancing laying efficiency and operational safety, avoiding the risk of wire rope loss of control due to excessive speed, while ensuring construction progress. Furthermore, the equipment operates smoothly, with lower vibration amplitude at low speeds, reducing the wear rate of various transmission components and extending equipment lifespan. Finally, the solution allows the wire rope to automatically and orderly arrange and wind without manual intervention, reducing the labor intensity of on-site operators.

[0055] Based on any of the above technical solutions, a further optimization is made: the model of the motor 7 is A2FE160 / 61W-VAL100.

[0056] It should be explained that the selected quantitative piston motor model 7 has a structural design and performance parameters that are highly matched with the structure of the drive unit and the working requirements of the hydraulic winch. It can drive the piston to reciprocate through the pressure oil input from the hydraulic system, efficiently converting hydraulic energy into mechanical energy and outputting stable torque. The installation dimensions of this model of motor 7 are precisely matched with the mounting surface of the side support frame 12, and can be directly connected to the gear shaft 16 of the main drive gear 13 to achieve efficient power transmission.

[0057] It should be further explained that the motor 7 has a strong torque output, which can meet the power requirements of the rated pulling force of the hydraulic winch, making it suitable for heavy-load cableway laying operations. It also has strong anti-pollution capabilities, with its internal structure designed to withstand a certain degree of impurities in the hydraulic oil, reducing the impact of the on-site working environment on the equipment and improving its environmental adaptability. Furthermore, it has high installation adaptability, with the flange dimensions of the motor 7 precisely matching the mounting surface of the side support frame 12, simplifying the assembly process and reducing assembly difficulty. Its unconventional technology lies in the low-speed, high-torque characteristics of the motor 7, which can meet the drum's speed requirements without the need for an additional reduction gear mechanism, simplifying the structure of the drive unit and reducing the overall size and weight of the equipment.

[0058] Based on any of the above technical solutions, a further optimization is made: the working pressure difference of the hydraulic winch is 18.5 MPa.

[0059] It should be explained that the working pressure difference is the pressure difference between the oil inlet and outlet of the hydraulic system. This pressure difference drives the piston movement inside the motor 7, and the magnitude of the pressure difference directly determines the output torque of the motor 7. By precisely controlling the relief valve 81 and the pressure reducing valve of the hydraulic system, the working pressure difference is stabilized at the preset value, which can ensure the stability of the output torque of the motor 7, thereby achieving a stable output of the rated pulling force of the hydraulic winch.

[0060] It should be further explained that the preset working pressure difference provides a stable pressure drive for motor 7, ensuring that the fluctuation range of output torque is within the allowable range and maintaining the stability of the wire rope traction tension. This pressure difference is set within the safe pressure resistance range of each component of the hydraulic system, avoiding the risk of seal damage or pipeline rupture due to excessive pressure, and improving the operational safety of the equipment. The reasonable working pressure difference avoids high-pressure overflow loss in the hydraulic system and improves energy utilization efficiency. The coordinated control of pressure difference and flow rate allows the hydraulic system to automatically adjust the pressure difference according to load changes, achieving efficient operation under variable loads and adapting to complex cableway laying conditions.

[0061] Based on any of the above technical solutions, a further optimization is made: the reduction ratio of the hydraulic winch is 408.

[0062] It should be explained that the reduction ratio is the total transmission ratio of the gear transmission system in the drive unit. The preset total reduction ratio is achieved by precisely matching the tooth ratio of the main drive gear 13 with the first gear 14 and the second gear 15. The high-speed, low-torque power output by the motor 7 is converted into the low-speed, high-torque power required by the drum after being reduced and increased in torque by the gear transmission system, so as to meet the load requirements of the wire rope traction and achieve precise matching of power characteristics.

[0063] It should be further explained that the preset reduction ratio can effectively amplify the output torque of motor 7 to meet the power requirements of the rated pulling force of the hydraulic winch and adapt to heavy-load cableway traction operations; through the design of the reduction ratio, the high speed of motor 7 is converted into the rated speed of the drum without additional adjustment, simplifying the operation process; compared with hydraulic reduction, the gear transmission reduction method has higher transmission rigidity, can quickly respond to load changes, and achieve precise control of traction force; the large reduction ratio design enables the equipment to have short-term overload capacity, which can cope with sudden load impacts during cableway laying and improve the equipment's adaptability to working conditions.

[0064] Example 2: Compared with Example 1, this example also includes the following technical features: The present invention also provides a method for laying cableways using a hydraulic winch, comprising the following steps: S1, the hydraulic winch is fixedly installed at the designated working position of the cableway laying, so that the first winch unit and the second winch unit of the hydraulic winch correspond to the two traction ends of the cableway wire rope respectively; S2, one end of the cableway wire rope is wound in the rope groove of the first winch drum 901, and the other end is wound in the rope groove of the second winch drum 902, so that the wire rope forms a winding structure between the two winch drums 9. S3, start the hydraulic winch drive unit, the drive unit simultaneously drives the first winch unit and the second winch unit to rotate synchronously, and realize the traction, tension and laying of the cableway wire rope through the wound steel wire rope. S4 monitors the tension and winding status of the wire rope in real time during the laying process, and adjusts the speed of the drive unit and the pressure of the hydraulic system according to the monitoring results. S5. After the cableway wire rope is laid to the preset position, turn off the drive unit, disconnect the wire rope from the two winch drums 9, and complete the cableway laying operation.

[0065] It should be explained that the working principle of this method is as follows: First, the hydraulic winch is precisely installed and positioned to lay the foundation for subsequent operations; then, the symmetrical layout of the two winches with nine drums is used to arrange the wire rope in a figure-eight winding structure, which enhances traction stability through the self-locking effect of the structure; then, the drive unit is activated to achieve synchronous drive of the two drums, pulling the wire rope to move smoothly; by monitoring the tension and winding status in real time, the drive parameters are dynamically adjusted to ensure operational safety; finally, the wire rope is disassembled and the operation is completed, forming a complete cableway laying process system.

[0066] It should be further explained that, compared with the traditional single-drum traction, the dual-drum synchronous traction significantly improves laying efficiency, shortens the construction cycle, and reduces project costs. Secondly, the combination of the figure-eight winding structure and real-time tension control ensures uniform tension of the wire rope, improves the accuracy and safety of cableway laying, and meets the acceptance requirements of high-standard cableway projects. In addition, the integrated operation method eliminates the need for additional auxiliary traction equipment, reducing the complexity of on-site operations and adapting to the complex mountain cableway construction environment. Through the self-locking effect of the figure-eight winding structure, the wire rope can be automatically locked when power is interrupted, preventing the wire rope from retracting uncontrollably, improving operational safety, and overcoming the technical limitation of traditional traction methods lacking self-locking capability.

[0067] Based on any of the above technical solutions, the following optimization is made: In step S2, the winding structure is formed as follows: the wire rope enters from the upper end of the rope groove of the first winch drum 901 and winds downward, and then enters from the lower end of the rope groove of the second winch drum 902 and winds upward, so that the wire rope is arranged in a cross-shaped figure-eight pattern between the two winch drums 9.

[0068] It needs to be explained that by limiting the winding direction and entry position of the wire rope on the two drums, the wire rope forms a cross-shaped structure between the two drums. This structure utilizes the multi-point contact between the wire rope and the drums and the mutual restraint of the cross tension to produce a self-locking effect. That is, when the drums rotate actively, they can pull the wire rope to move, while when the wire rope is pulled in the opposite direction by an external force, it will lock due to the increased friction, thus improving the stability of the traction operation.

[0069] It should be further explained that the figure-eight cross-winding structure can effectively prevent the wire rope from backing up during traction, which is especially suitable for the working conditions of climbing cableway laying. The cross-winding method greatly increases the contact area between the wire rope and the drum groove, reduces local wear of the wire rope, and extends the service life of the wire rope. The figure-eight structure makes the tension of the wire rope evenly distributed on the two drums, avoiding overload of one drum and improving the operational stability of the equipment. In addition, the lateral component force generated by the cross-winding can make the wire rope automatically fit the bottom of the groove without the need for manual positioning, improving the automation level of the operation and reducing the error of human intervention.

[0070] Based on any of the above technical solutions, the following optimization is made: In step S3, the drive unit simultaneously engages the first gear 14 and the second gear 15 through the main drive gear 13, driving the first winch drum 901 and the second winch drum 902 to rotate at the same speed but in opposite directions, thereby maintaining the tension balance of the figure-eight winding structure.

[0071] It should be explained that the main drive gear 13 is rigidly meshed with the first gear 14 and the second gear 15 at the same speed. When the main drive gear 13 rotates, it drives the first gear 14 and the second gear 15 to rotate in opposite directions at the same speed, thereby driving the two winch drums 9 to rotate synchronously in opposite directions. The rotating drums in opposite directions generate bidirectional synchronous traction force on the figure-eight wound wire rope, so that the tension of the wire rope is evenly distributed in the winding structure, avoiding tension imbalance caused by asynchronous turning.

[0072] It should be further explained that the mechanical constraint of gear meshing enables precise reverse synchronization of the two drums, ensuring balanced application of traction force and maintaining the tension stability of the figure-eight structure. The reverse synchronous rotation keeps the tension at both ends of the figure-eight structure consistent, improving the stability of the wire rope traction and avoiding damage to the wire rope caused by tension fluctuations. The rigid gear meshing transmission method can quickly respond to the parameter adjustments of the drive unit, change the magnitude of the traction force in real time, and achieve precise control of the traction force. The tension self-balancing effect generated by the reverse rotation can automatically offset the inertial impact during the wire rope traction process, improve the tension control accuracy, and meet the process requirements of high-precision cableway laying.

[0073] Based on any of the above technical solutions, a further optimization is made as follows: In step S4, a tension sensor is used to monitor the tension of the wire rope. When the tension value exceeds the rated tension of 200KN, the hydraulic system of the drive unit automatically adjusts the pressure and reduces the speed of the winch unit.

[0074] It needs to be explained that tension sensors are placed at key traction nodes of the wire rope to collect the tension data of the wire rope in real time and feed it back to the control unit of the hydraulic system. When the tension value exceeds the rated threshold, the control unit issues a command to reduce the system pressure through the pressure reducing valve of the hydraulic system, while reducing the flow of hydraulic oil, thereby reducing the output speed and torque of motor 7, so that the tension of the wire rope falls back to the safe range, forming a closed-loop tension control system.

[0075] It should be further explained that the combination of real-time tension monitoring and automatic pressure regulation and speed reduction can effectively prevent the wire rope from tensile deformation or breakage due to overload, protect the safety of the equipment and the wire rope, reduce the risk of engineering accidents, and achieve automatic overload protection. The closed-loop control method keeps the tension fluctuation of the wire rope within a very small range, ensuring the quality of cableway laying. Overload protection can be completed without manual intervention during operation, reducing the labor intensity of on-site operators and improving work efficiency. The real-time tension feedback can quickly complete the pressure regulation and speed reduction response. Compared with traditional manual adjustment, the response speed is greatly improved, avoiding safety hazards caused by the lag in manual operation.

[0076] Based on any of the above technical solutions, the following optimization is made: In step S3, the motor 7 of the drive unit operates at a rated speed of 1.8 r / min, and the working pressure difference of the hydraulic system is maintained at 18.5 MPa to ensure the stability of the traction power of the winch unit.

[0077] It should be explained that the speed of motor 7 is precisely controlled at the rated value by the flow control valve of the hydraulic system, while the pressure difference of the system is stabilized at the preset value by the relief valve 81. This combination of speed and pressure difference parameters enables motor 7 to output stable torque, thereby ensuring that the traction power of the winch unit is constant and meeting the requirements for traction stability during the cableway laying process.

[0078] It should be further explained that the constant rotational speed and pressure difference keep the fluctuation of traction force within a very small range, ensuring the stability of the wire rope traction and improving the quality of cableway laying; the stable traction force can avoid the vibration of the wire rope caused by power fluctuations, improve the accuracy of cableway laying, and the coordinated matching of parameters can effectively control the temperature rise of the equipment when operating at full load, avoid performance degradation caused by system overheating, and extend the continuous operation time of the equipment.

[0079] Based on any of the above technical solutions, a further optimization is made as follows: In step S5, before disconnecting the wire rope, the winch unit is rotated in the opposite direction by the drive unit to make the wire rope with the figure-eight winding in a relaxed state, and then the wire rope is removed from the two winch drums 9 in sequence.

[0080] It should be explained that after the cableway is laid, the wire rope is under high tension. Direct disassembly would cause a risk of rebound due to the instantaneous release of tension. By controlling the winch unit to rotate in the opposite direction through the drive unit, the drum is reversed, which gradually relaxes the wire rope wound in a figure-eight shape and reduces the tension to a safe value. At this time, the adhesion between the wire rope and the rope groove is weakened, and it can be easily disassembled from the drum to avoid rebound that could injure people or damage the equipment.

[0081] It should be further explained that reverse slack rope eliminates the risk of wire rope rebound, improves safety in the final stage of the operation, and reduces the probability of engineering accidents; disassembling the wire rope in a slack state can avoid deformation or end damage caused by forced pulling, ensuring the reuse value of the wire rope; the friction between the slack wire rope and the rope groove is reduced, making the disassembly process more labor-saving and efficient, and shortening the final stage of the operation; in addition, the controllability of reverse rotation can precisely control the degree of slack of the wire rope, avoiding the wire rope from becoming disordered and tangled due to excessive slack, and improving the standardization and orderliness of the operation.

[0082] This invention also provides a hydraulic system for a hydraulic winch used in cableway laying, including a hydraulic power system, a control unit, and an actuator; the hydraulic power system includes a power source 2, a pump 3, a filter 4, an oil tank 1, and a safety valve 5; the power source 2 is drivenly connected to the pump 3, the oil inlet of the pump 3 is connected to the oil tank 1 via the filter 4, and the oil outlet of the pump 3 is provided in two ways: one is connected to the oil inlet of the safety valve 5, and the other is connected to the oil inlet of the control unit; the oil outlet of the safety valve 5 is connected to the oil tank 1; the control unit is an electromagnetic directional valve 6, and the P port of the electromagnetic directional valve 6 is the oil inlet and is connected to the oil outlet of the pump 3. The T port of the electromagnetic reversing valve 6 is a return port and is connected to the oil tank 1. The A working port and B working port of the electromagnetic reversing valve 6 are output working ports. The actuator includes a motor 7, a protection valve group 8, a winch 9, and a spring-loaded braking system 10. The two working ports of the motor 7 are respectively connected to the A working port and B working port of the electromagnetic reversing valve 6. The protection valve group 8 is connected in parallel between the two working ports of the motor 7. The output shaft of the motor 7 is connected to the winch 9. The spring-loaded braking system 10 is installed at the winch 9, and the control oil circuit of the braking system 10 is connected to the oil outlet of the pump 3.

[0083] Based on any of the above technical solutions, a further optimization is made: the protection valve group 8 includes an overflow valve 81 and a one-way valve 82, and the overflow valve 81 and the one-way valve 82 are connected in parallel to form the overload protection and oil replenishment circuit of the motor 7.

[0084] Based on any of the above technical solutions, a further optimization is made: the electromagnetic directional valve 6 is a three-position four-way electromagnetic directional valve 6.

[0085] Based on any of the above technical solutions, a further optimization is made: the pump 3 is a fixed displacement hydraulic pump 3, and the power source 2 is an internal combustion engine or an electric motor.

[0086] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art, any alternative improvements or transformations made to the implementation of the present invention fall within the protection scope of the present invention.

[0087] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. Hydraulic winch for cableway laying, characterized in that: The utility model provides a kind of cableway laying device, including continuous machine frame;Front and rear sides of the top of the continuous machine frame are respectively fixed with lateral support frame;First winch unit and second winch unit are respectively installed in the top left and right sides of the continuous machine frame, the both ends of the central shaft of the first winch unit and the second winch unit are respectively movably inserted in the bearing hole of corresponding lateral support frame, and driving unit is arranged between the first winch unit and the second winch unit, the output end of the driving unit is used to drive the first winch unit and the second winch unit simultaneously, the input end of the driving unit is used to connect external power source, and the first winch unit and the second winch unit cooperate to realize the winding of steel wire rope.

2. The hydraulic winch for cableway installation according to claim 1, characterized in that: The first winch unit includes a first winch drum, the both ends of the central shaft of the first winch drum are respectively matched and inserted in the corresponding bearing hole, the outer side wall of the first winch drum is provided with a rope groove for winding steel wire rope, a first gear is integrally and fixedly connected to the front end outer side wall of the first winch drum, and the first gear is used to be meshed and connected with the output end of the driving unit.

3. The hydraulic winch for cableway installation according to claim 1, characterized in that: The second winch unit includes a second winch drum, the both ends of the central shaft of the second winch drum are respectively matched and inserted in the corresponding bearing hole, the outer side wall of the second winch drum is provided with a rope groove for winding steel wire rope, the inner surface of the rope groove is provided with an anti-slip unit, a second gear is integrally and fixedly connected to the front end outer side wall of the second winch drum, and the second gear is used to be meshed and connected with the output end of the driving unit.

4. The hydraulic winch for cableway installation according to claim 3, characterized in that: The driving unit includes a total drive gear arranged between the first gear and the second gear, the front end of the gear shaft of the total drive gear movably penetrates through the support hole of the lateral support frame, and is connected with the output shaft of the motor fixed on the outer side wall of the lateral support frame, the input end of the motor is connected with the external power source, and is provided with a hydraulic system.

5. The hydraulic winch for cableway installation according to claim 4, characterized in that: The first gear and the second gear are completely same in structure.

6. A hydraulic winch for cableway construction according to claim 5, characterized in that: The model of the motor is A2FE160 / 61W-VAL100.

7. Method for cableway laying using a hydraulic winch as claimed in claim 6, characterized in that, The utility model includes the following steps: S1, the hydraulic capstan is fixedly installed at the specified operation position of cableway laying, so that the first winch unit and the second winch unit of the hydraulic capstan correspond to the two traction ends of cableway steel wire rope respectively; S2, one end of the cableway steel wire rope is wound in the rope groove of the first winch drum, and the other end is wound in the rope groove of the second winch drum, so that the steel wire rope forms a winding structure between the two winch drums; S3, the driving unit of the hydraulic capstan is started, the driving unit drives the first winch unit and the second winch unit to rotate synchronously, and the traction, tensioning and laying operation of the cableway steel wire rope are realized through the wound steel wire rope; S4, the tension and winding state of the steel wire rope are monitored in real time during laying, and the rotating speed of the driving unit and the pressure of the hydraulic system are adjusted according to the monitoring result; S5, after the cableway steel wire rope is laid to the preset position, the driving unit is turned off, the connection between the steel wire rope and the two winch drums is released, and the cableway laying operation is completed.

8. The method of claim 7, wherein: In step S3, the driving unit simultaneously engages the first gear and the second gear through the total driving gear, drives the first winch drum and the second winch drum to rotate at the same speed and in opposite directions, and maintains the tension balance of the eight-shaped winding structure.

9. The method of claim 7, wherein: In step S4, the tension sensor is used to monitor the tension of the steel wire rope, and when the tension value exceeds the rated tension of 200KN, the hydraulic system of the driving unit automatically adjusts the pressure and reduces the speed of the winch unit.

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