Traction machine controlled by maximum traction force

Abstract

The invention discloses a traction machine controlled by maximum traction force, which belongs to the technical field of power grid erection, and comprises a base and a traction assembly, and the traction assembly is provided with a traction rope; the traction control end is used for adjusting the traction force of the traction assembly; the traction control end specifically comprises a data acquisition module used for acquiring cable state data; the cable analysis unit is used for generating a traction adjustment demand index according to the cable state data; the traction force adjusting unit is used for acquiring environmental data in cable erection and mechanical efficiency of a pulley and generating a traction force correction coefficient of the traction assembly; the adjustment control module is used for adjusting the current traction force of the traction assembly according to the traction force correction coefficient of the traction machine; whether the current traction force is in the optimal state or not can be accurately judged, the traction force is dynamically adjusted, cable damage or low erecting efficiency caused by improper traction force is avoided, and therefore the safety of the traction machine during cable erecting is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of power grid erection, and in particular relates to a traction machine with maximum traction force control. Background Art

[0002] In cable laying projects, the traction machine is one of the core equipment for cable laying. The traction machine applies tension to the cable through a winch or crawler method to achieve the laying of long-distance, large-section cables.

[0003] Traditional tractors are mostly equipped with fixed gears, and the traction parameters are limited by the preset mechanical structure. Some tractors have introduced digital interfaces that can adjust the traction force of the tractor.

[0004] However, although existing traction machines have introduced digital interfaces, most still rely on workers' experience to dynamically adapt to actual traction needs, and are unable to accurately and dynamically control the traction force of the tractor when laying cables. This can easily lead to excessive or insufficient traction force, causing unnecessary damage to the cables, thereby reducing the safety of the traction machine during cable laying. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a traction machine with maximum traction force control, which solves the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a traction machine with maximum traction force control, used in cable laying projects, comprising a base and a traction assembly, wherein the traction assembly is provided with a traction rope; the traction machine also includes:

[0007] A traction control end, used for adjusting the traction force exerted by the traction component on the traction rope;

[0008] The traction control terminal specifically includes:

[0009] A data acquisition module is used to acquire cable status data; wherein the cable status data includes the current cable bending curvature, cable position information and cable unit weight;

[0010] A cable analysis unit, used for generating a pulling adjustment demand index according to the cable bending curvature and the cable unit weight;

[0011] a traction adjustment demand analysis module, configured to determine whether the traction force of the traction component is an optimal traction force based on a traction adjustment demand index;

[0012] A traction force adjustment unit is used to obtain environmental data during cable installation and the mechanical efficiency of the pulley to generate a traction force correction coefficient for the traction assembly; wherein the environmental data includes environmental wind speed and wind direction angle; the wind direction angle refers to the angle formed between the wind direction and the cable;

[0013] The adjustment control module is used to adjust the current traction force of the traction assembly according to the traction force correction coefficient of the traction machine.

[0014] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0015] Further technical solution: The traction assembly specifically includes:

[0016] A winding shaft, the winding shaft being arranged on one side of the base, and the traction rope being in contact with the winding shaft;

[0017] a baffle, the baffle being fixedly arranged on one side of the winding shaft;

[0018] A drive motor, wherein the drive motor is disposed on one side of the baffle, and an output end of the drive motor is rotatably connected to the baffle;

[0019] A support platform, one end of which is fixedly arranged on the base, and the other end of which is fixedly connected to the driving motor.

[0020] Further technical solution: The traction machine also includes:

[0021] An auxiliary component is provided on one side of the base and is used to increase the friction of the traction rope so as to improve the stability of the traction rope wrapped around the traction component;

[0022] The auxiliary components specifically include:

[0023] A rotating wheel is rotatably arranged on the base, and the traction rope is in contact with the rotating wheel;

[0024] A limiting member is fixedly arranged on one side of the rotating wheel.

[0025] Further technical solution: The traction machine also includes:

[0026] an adjusting assembly, the adjusting assembly being arranged on one side of the traction assembly and being used for adjusting the position of the traction rope wound around the traction assembly;

[0027] The adjustment component specifically includes:

[0028] A sliding block, the sliding block being slidably arranged on the base;

[0029] A clamping member, the clamping member is rotatably disposed on the sliding block, and the clamping member is in contact with the traction rope;

[0030] A screw rod is threadedly connected to the sliding block, and both ends of the screw rod are rotatably connected to the base.

[0031] Further technical solution: The cable analysis unit specifically includes:

[0032] The bend curvature analysis module is used to generate a bend curvature health index based on the current cable bend curvature. The bend curvature health index refers to the ratio of the current cable bend curvature to the near end point of the standard bend curvature range. The standard bend curvature range refers to the cable bend curvature under standard working conditions.

[0033] The cable position analysis module is used to establish a cable tensile analysis model based on the cable position information and the cable unit weight, and generate a cable tensile evaluation index;

[0034] The traction adjustment demand analysis module is used to generate a traction adjustment demand index based on the bending curvature health index and the cable tensile evaluation index.

[0035] Further technical solution: The traction force adjustment unit specifically includes:

[0036] Environmental data acquisition module, used to obtain the environmental wind speed and wind direction angle during cable installation;

[0037] The wind speed analysis module is used to generate a wind speed impact index based on the ambient wind speed. The wind speed impact index refers to the ratio between the ambient wind speed and the wind speed warning value. The wind speed warning value refers to the minimum wind speed that can cause the cable to shake.

[0038] The wind direction analysis module is used to generate a wind direction influence coefficient based on the wind direction angle; the wind direction influence coefficient refers to the ratio between the wind direction angle and the middle value of the wind direction angle range; the middle value of the wind direction angle range refers to the average between the maximum wind direction angle and the minimum wind direction angle;

[0039] The traction correction coefficient generation module is used to establish a correction model and generate a traction correction coefficient based on the wind speed influence index, the wind direction influence coefficient, the mechanical efficiency of the pulley and the traction adjustment demand index.

[0040] Further technical solution: The method of adjusting the current traction force of the traction assembly is specifically as follows:

[0041] The traction force adjustment value of the traction component is generated according to the current traction force of the traction component on the cable and the traction force correction coefficient; the traction force adjustment value of the traction component refers to the product of the current traction force of the traction component on the cable and the traction force correction coefficient.

[0042] Further technical solution: The traction machine also includes:

[0043] A support assembly is provided on one side of the base and is used to maintain the stability of the traction assembly during operation.

[0044] Further technical solution: The support assembly specifically includes:

[0045] a telescopic member, one end of which is fixedly arranged on one side of the base;

[0046] An anti-slip part is fixedly arranged on the protruding end of the telescopic part.

[0047] Further technical solution: The traction assembly further includes:

[0048] A fixing member is fixedly arranged on the baffle, and a hole is opened on the fixing member.

[0049] The present invention provides a traction machine with maximum traction force control, which has the following advantages compared with the prior art:

[0050] 1. The present invention uses a data acquisition module to collect cable curvature, location information, and unit weight in real time. Combined with a cable analysis unit, it generates a traction adjustment demand index. This accurately determines whether the current traction force is optimal and dynamically adjusts the traction force accordingly, avoiding cable damage or low installation efficiency caused by improper traction force, thereby improving the safety of the traction machine during cable installation.

[0051] 2. The traction force adjustment unit integrates ambient wind speed, wind direction angle, and pulley mechanical efficiency data to generate a traction force correction coefficient through a correction model, significantly improving the operating stability of the traction machine and reducing the impact of external interference on cable traction;

[0052] 3. The present invention realizes closed-loop control of traction force through the cable tensile analysis model, traction adjustment demand index threshold judgment and traction force correction algorithm, reduces the need for manual intervention, and improves operation efficiency and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A schematic diagram of the three-dimensional structure of a traction machine with maximum traction force control provided by an embodiment of the present invention.

[0054] Figure 2A schematic side structural diagram of a traction machine with maximum traction force control provided by an embodiment of the present invention.

[0055] Figure 3 A schematic diagram of the three-dimensional structure of the traction assembly provided in an embodiment of the present invention.

[0056] Figure 4 A schematic diagram of the three-dimensional structure of the adjustment component provided in an embodiment of the present invention.

[0057] Figure 5 A schematic structural diagram of a traction control terminal provided in an embodiment of the present invention.

[0058] Figure 6 A schematic structural diagram of a cable analysis unit provided in an embodiment of the present invention.

[0059] Figure 7 A schematic structural diagram of a traction force adjustment unit provided in an embodiment of the present invention.

[0060] Notes on the accompanying drawings: 1. Base; 2. Traction assembly; 3. Auxiliary assembly; 4. Support assembly; 5. Traction control end; 6. Adjustment assembly; 7. Manual operation end; 8. Traction rope; 201. Winding shaft; 202. Baffle; 203. Drive motor; 204. Support platform; Fixing part (205), fixing part; 301. Rotating wheel; 302. Limiting part; 401. Telescopic part; 402. Anti-slip part; 601. Sliding block; 602. Clamping part; 603. Screw rod. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0062] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0063] like Figure 1 and Figure 2 As shown, a traction machine with maximum traction force control provided by an embodiment of the present invention is applied to cable laying projects, comprising a base 1 and a traction assembly 2, wherein the traction assembly 2 is provided with a traction rope 8; the traction machine also includes:

[0064] A support assembly 4 is provided on one side of the base 1 and is used to maintain the stability of the traction assembly 2 during operation;

[0065] An auxiliary component 3 is provided on one side of the base 1 and is used to increase the friction of the traction rope so as to improve the stability of the traction rope 8 wound around the traction component 2;

[0066] an adjusting component 6 , which is disposed on one side of the traction component 2 and is used to adjust the position of the traction rope 8 wound around the traction component 2 ;

[0067] The traction control terminal 5 is used to adjust the traction force of the traction component 2 on the traction rope 8;

[0068] Specifically, by starting the traction component 2 to drive the movement of the traction rope 8, the traction rope 8 drives one end of the cable to move, thereby traction of the cable is achieved, thereby completing the installation of the cable; at the same time, the traction force of the traction component 2 on the traction rope 8 is adjusted by the traction control end 5 to ensure that the traction force of the traction component 2 on the traction rope 8 does not exceed the tensile safety threshold of the cable, thereby preventing the cable from being damaged during the traction process (when the traction force is too large to a certain extent, the cable may break), thereby improving the safety of the cable installation;

[0069] In this embodiment, the support assembly 4 is in contact with the ground, which can reduce the vibration amplitude of the traction assembly 2 during operation, thereby improving the stability of the traction assembly 2 during operation;

[0070] In addition, the adjustment component 6 can make the traction rope 8 evenly wound on the traction component 2, preventing the traction rope 8 from slipping when it is unevenly wound on the traction component 2, thereby causing the traction force of the traction rope 8 on the cable to temporarily disappear. The cable falls due to gravity, which increases the instantaneous tension between the cable and the traction rope 8. The instantaneous tension can easily exceed the force limit of the cable and cause damage to the cable; if the connection between the traction rope 8 and one end of the cable is not firm, the cable and the traction rope may be disconnected, resulting in traction failure.

[0071] like Figure 5 As shown, as a preferred embodiment of the present invention, the traction control terminal 5 specifically includes:

[0072] The data acquisition module 10 is used to acquire cable status data; wherein the cable status data includes the current cable bending curvature, cable position information and cable unit weight;

[0073] The cable analysis unit 20 is used to generate a traction adjustment demand index according to the cable bending curvature and the unit weight of the cable;

[0074] a traction adjustment demand analysis module 30 for determining whether the traction force of the traction component 2 is the optimal traction force according to the traction adjustment demand index;

[0075] The traction force adjustment unit 40 is used to obtain environmental data during cable installation and the mechanical efficiency of the pulley to generate a traction force correction coefficient for the traction assembly 2; wherein the environmental data includes environmental wind speed and wind direction; the wind direction angle refers to the angle formed between the wind direction and the cable;

[0076] The adjustment control module 50 is used to adjust the current traction force of the traction assembly 2 according to the traction force correction coefficient of the traction machine.

[0077] like Figure 1 As shown, as a preferred embodiment of the present invention, the traction assembly 2 specifically includes:

[0078] A winding shaft 201, the winding shaft 201 is arranged on one side of the base 1, and the traction rope 8 is in contact with the winding shaft 201;

[0079] a baffle 202 , the baffle 202 being fixedly disposed on one side of the winding shaft 201 ;

[0080] A drive motor 203 , wherein the drive motor 203 is disposed on one side of the baffle 202 , and an output end of the drive motor 203 is rotatably connected to the baffle 202 ;

[0081] A support platform 204, one end of which is fixedly disposed on the base 1, and the other end of which is fixedly connected to the drive motor 203;

[0082] Specifically, by starting the drive motor 203, the drive motor 203 drives the baffle 202 to rotate, and the baffle 202 drives the winding shaft 201 to rotate, so that the traction rope 8 is wound around the winding shaft 201, thereby completing the traction work of the cable;

[0083] In addition, the baffle 202 can also prevent the traction rope 8 from sliding off the winding shaft 201 during the winding process, resulting in the disappearance of the traction force on the cable, causing the cable to suffer additional damage.

[0084] like Figure 3 As shown, as a preferred embodiment of the present invention, the traction assembly 2 further includes:

[0085] A fixing member 205, the fixing member 205 is fixedly disposed on the baffle 202, and a hole is opened on the fixing member 205;

[0086] Specifically, by fixing one end of the traction rope in the hole formed on the fixing member 205, the traction rope 8 is prevented from slipping due to excessive tension when the traction rope 8 is wound around the winding shaft 201.

[0087] The method of fixing one end of the traction rope in the hole formed on the fixing member 205 includes but is not limited to knotting, fixing with a pin, etc.

[0088] like Figure 1 As shown, as a preferred embodiment of the present invention, the auxiliary component 3 specifically includes:

[0089] A rotating wheel 301 is rotatably disposed on the base 1 , and the traction rope 8 is in contact with and connected to the rotating wheel 301 ;

[0090] A limiting member 302 , the limiting member 302 being fixedly disposed on one side of the rotating wheel 301 ;

[0091] Specifically, the traction rope 8 is first wound around the rotating wheel 301 to increase the contact area between the traction rope 8 and the object, and to distribute the friction between the traction rope 8 and the winding shaft 201, thereby improving the traction stability of the traction assembly 2 on the traction rope 8;

[0092] In addition, the limiting member 302 is used to prevent the traction rope 8 from sliding off the surface of the rotating wheel 301, thereby reducing the risk of additional damage to the cable when the cable is pulled.

[0093] like Figure 1 As shown, as a preferred embodiment of the present invention, the support assembly 4 specifically includes:

[0094] A telescopic member 401, one end of which is fixedly disposed on one side of the base 1;

[0095] an anti-slip member 402 fixedly disposed on the protruding end of the telescopic member 401;

[0096] Specifically, by adjusting the extension length of the extended end of the telescopic member 401, the anti-slip member 402 is brought into contact with the ground, thereby allowing the telescopic member 401 to support the base 1; the friction between the anti-slip member 402 and the ground can be increased by the gravity of the base 1, thereby maintaining the stability of the base 1, that is, the stability of the tractor;

[0097] In addition, the types of the telescopic member 401 include but are not limited to hydraulic, electric, etc.;

[0098] In this embodiment, when the base 1's own gravity is insufficient (the reaction force of the cable on the traction rope 8 is much higher than the overall weight of the traction machine), weight-increasing parts (such as sandbags, iron blocks, stones, etc.) can be placed on the base 1 or the anti-slip part 402 to increase the friction between the anti-slip part 402 and the ground, thereby maintaining the stability of the traction machine.

[0099] like Figure 1 and Figure 4As shown, as a preferred embodiment of the present invention, the adjustment component 6 specifically includes:

[0100] A sliding block 601 is slidably disposed on the base 1;

[0101] A clamping member 602 is rotatably disposed on the sliding block 601 and is in contact with the traction rope 8;

[0102] A screw rod 603, wherein the screw rod 603 is threadedly connected to the sliding block 601, and both ends of the screw rod 603 are rotatably connected to the base 1;

[0103] Specifically, by rotating the screw rod 603, the screw rod 603 drives the sliding block 601 to perform linear motion, and the sliding block 601 drives the clamping member 602 to perform linear motion, so that the clamping member 602 can adjust the position of the traction rope 8 wound on the traction assembly 2, so that the winding of the traction rope 8 on the traction assembly 2 is more stable;

[0104] In addition, when the traction rope 8 is being wound, since the traction rope 8 is in contact with the clamping member 602, and the clamping member 602 is rotatably set on the sliding block 601, when the traction rope 8 moves, the traction rope 8 will drive the clamping member 602 to rotate, thereby reducing the friction between the traction rope 8 and the clamping member 602.

[0105] like Figure 1 and Figure 2 As shown, as a preferred embodiment of the present invention, the tractor further includes:

[0106] A manual operating terminal 7, which is fixed on the base 1 and is used to manually adjust the traction machine;

[0107] Specifically, when the tractor has other abnormalities, the tractor can be manually operated through the manual operation terminal 7; for example, if the operating temperature of the tractor is too high, the maintenance personnel can adjust the tractor through the manual operation terminal 7; the adjustment includes but is not limited to emergency stop, increasing the heat dissipation power, etc.

[0108] As a preferred embodiment of the present invention, the data acquisition method of the data acquisition module specifically includes:

[0109] The current cable bending curvature in the cable status data can be obtained by an image sensor to obtain an image of the cable, and the current cable bending curvature can be output through the image of the cable; wherein, the method of outputting the current cable bending curvature from the image of the cable is a prior art and will not be described in detail here;

[0110] In this embodiment, since a drone is required during the cable installation process to pass the traction rope 8 through the power tower and connect it to one end of the cable (when the power tower is too high), the image of the cable can be obtained by simply using the image sensor on the drone. If a drone is not used during the cable installation process, an image sensor can also be installed on the base 1 to obtain an image of the cable.

[0111] In addition, the current cable bending curvature refers to the bending curvature of the cable between the traction assembly 2 and the power tower;

[0112] The unit weight of the cable refers to the total weight of the cable in a fixed unit. This data can be obtained directly. If it cannot be obtained directly, the unit weight of the cable can be obtained by numerical conversion based on the length of the cable and the total weight of the length. The numerical conversion method is existing and will not be repeated here.

[0113] like Figure 6 As shown, as a preferred embodiment of the present invention, the cable analysis unit specifically includes:

[0114] The bending curvature analysis module 21 is used to generate a bending curvature health index based on the current cable bending curvature; the bending curvature health index refers to the ratio of the current cable bending curvature to the near end point of the standard bending curvature range; the standard bending curvature range refers to the cable bending curvature under standard working conditions;

[0115] For cables hanging in the air, especially in ideal conditions where air resistance and other external factors are ignored, the cables usually present a parabola-like or parabola shape, and the curvature of the parabola is the cable bending curvature;

[0116] It should be explained that the standard cable bending curvature range is a set value, which is set by relevant personnel in this field;

[0117] In addition, the near end point of the standard cable bending curvature range refers to the end point with the smallest difference between the two end points of the standard cable bending curvature range and the current cable bending curvature; for example, if the standard cable bending curvature range is x-5 to x+5, and the current cable bending curvature is x-1, then the near end point of the standard cable bending curvature range is x-5;

[0118] The cable position analysis module 22 is used to establish a cable tensile analysis model based on the cable position information and the cable unit weight, and generate a cable tensile evaluation index;

[0119] Among them, the expression of the cable tensile analysis model is:

[0120]

[0121] In the expression, K represents the cable tensile evaluation index, L represents the length of the cables on both sides of the power tower, ρ represents the unit weight of the cable, F1 represents the pulling force of the traction component 2 on the cable, and F0 represents the cable tensile safety threshold. The cable tensile safety threshold refers to the maximum tensile force that the cable can withstand within a safe range.

[0122] The cable tensile safety threshold is a set value, specifically a portion of the cable's maximum tensile strength. For example, if the cable's maximum tensile strength is n, the cable tensile safety threshold is m%*n, where m is set by the user.

[0123] In this embodiment, the lengths of the cables on both sides of the power tower can be outputted respectively through the cable position information, and the weights of the cables on both sides of the power tower can be obtained respectively according to the cable lengths and the unit weights of the cables.

[0124] In addition, the length of the cables on both sides of the power tower refers to the length of the cables suspended in the air. For example, the length between the power tower and the traction assembly 2 is one side of the power tower, and the length of the cables on the other side does not include the length of the cables on the ground (usually the cable drum, where the ground refers to the part of the cable that is not suspended in the air).

[0125] A traction adjustment demand analysis module 23 is used to generate a traction adjustment demand index based on the bending curvature health index and the cable tensile evaluation index;

[0126] For example, by formula:

[0127] R=(1-K)*α+(1-θ)*β;

[0128] Generate traction adjustment demand index R;

[0129] In the formula, K represents the cable tensile evaluation index, θ represents the bending curvature health index, α and β are weight coefficients, and α+β=1;

[0130] It should be explained that the values ​​of α and β are set by relevant personnel in this field, and the methods for determining the values ​​include but are not limited to expert consultation method, etc.

[0131] As a preferred embodiment of the present invention, the method for determining whether the traction force of the traction component 2 is the optimal traction force is:

[0132] comparing the traction-adjusted demand index to a traction-adjusted demand index threshold;

[0133] The threshold value of the traction adjustment demand index is a set value, and its value is set by relevant personnel in this field;

[0134] When the traction adjustment demand index is less than or equal to the traction adjustment demand index threshold, the traction force of the traction component 2 is determined to be the optimal traction force; at this time, the smaller the traction adjustment demand index, the closer the traction force of the traction component 2 is to the optimal traction force; when the traction force of the traction component 2 is the optimal traction force, the maintenance personnel only need to perform routine maintenance on the traction component 2 and observe the status of the cable;

[0135] When the traction adjustment demand index is greater than the traction adjustment demand index threshold, it is determined that the traction force of the traction component 2 is not the optimal traction force; at this time, the larger the traction adjustment demand index, the less close the traction force of the traction component 2 is to the optimal traction force; when the traction force of the traction component 2 is not the optimal traction force, the traction force of the traction component 2 on the cable needs to be adjusted.

[0136] like Figure 7 As shown in FIG. 1 , as a preferred embodiment of the present invention, the traction force adjustment unit specifically includes:

[0137] Environmental data acquisition module 41, used to obtain the environmental wind speed and wind direction angle during cable installation;

[0138] The wind speed analysis module 42 is used to generate a wind speed impact index based on the ambient wind speed; wherein the wind speed impact index refers to the ratio between the ambient wind speed and the wind speed warning value; the wind speed warning value refers to the minimum wind speed that can cause the cable to shake;

[0139] It should be noted that, in this embodiment, when the wind speed impact index is generated, the ambient wind speed is greater than the wind speed warning value; for example, if the ambient wind speed is less than or equal to the wind speed warning value, the value of the wind speed impact index is set to 0; if the ambient wind speed is greater than the wind speed warning value, the wind speed impact index is the ratio of the ambient wind speed to the wind speed warning value;

[0140] In addition, the wind speed warning value refers to the lowest wind speed that can cause the cable to shake. This is the wind speed angle when the wind direction and the cable are perpendicular to each other.

[0141] The wind direction analysis module 43 is used to generate a wind direction influence coefficient based on the wind direction angle; wherein the wind direction influence coefficient refers to the ratio between the wind direction angle and the middle value of the wind direction angle range; the middle value of the wind direction angle range refers to the average between the maximum wind direction angle and the minimum wind direction angle;

[0142] It should be explained that the average of the maximum wind direction angle and the minimum wind direction angle can be understood as the angle when the wind direction and the cable are perpendicular to each other. In this embodiment, the wind direction angle refers to the angle formed by the wind direction and the cable, that is, the angle when the wind direction and the cable are perpendicular to each other is 90°.

[0143] The traction correction coefficient generating module 44 is used to establish a correction model and generate a traction correction coefficient according to the wind speed influence index, the wind direction influence coefficient, the mechanical efficiency of the pulley and the traction adjustment demand index.

[0144] As a preferred embodiment of the present invention, the expression of the correction model is:

[0145]

[0146] In the expression, It represents the traction correction coefficient, R represents the traction adjustment demand index, S ratio It represents the wind speed influence index, ε represents the wind direction influence coefficient, and η represents the mechanical efficiency of the pulley;

[0147] It should be explained that when the pulley is in use, the contact between the cable and the pulley (the pulley used in the cable traction installation process) will generate corresponding friction, which will cause the mechanical efficiency of the pulley (i.e., the ratio of effective output work to input work) to decrease;

[0148] In addition, the generation of friction will additionally increase the reverse pulling force on the cable, and factors that affect the magnitude of friction include but are not limited to air humidity (or water content on the pulley surface);

[0149] For example, the mechanical efficiency of the pulley can be used to generate the actual mechanical efficiency of the pulley, that is, the mechanical efficiency of the pulley, according to the theoretical mechanical efficiency of the pulley, the moisture content of the air, and the moisture content on the surface of the pulley.

[0150] As a preferred embodiment of the present invention, the method of adjusting the current traction force of the traction assembly 2 is specifically as follows:

[0151] generating a traction force adjustment value of the traction component 2 according to the current traction force of the traction component 2 on the cable and the traction force correction coefficient; the traction force adjustment value of the traction component 2 refers to the product of the current traction force of the traction component 2 on the cable and the traction force correction coefficient;

[0152] For example, by formula:

[0153]

[0154] generating a traction force adjustment value ΔF of the traction component 2;

[0155] In the formula, Indicates the traction correction factor, F i It represents the current pulling force of the pulling component 2 on the cable;

[0156] When the traction control end 5 receives the traction force adjustment value ΔF of the traction component 2, it can adjust the traction force of the traction component 2 on the traction rope 8 by adjusting the power of the engine (that is, the power of the drive motor 203), so that the traction force of the traction component 2 on the traction rope 8 always maintains the maximum traction force while ensuring the safety of the cable, thereby improving the cable installation efficiency.

[0157] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A traction machine with maximum traction force control, used in cable laying engineering, comprising a base (1) and a traction assembly (2), characterized in that: The traction assembly (2) is provided with a traction rope (8); the traction machine further comprises: A traction control end (5) is used to adjust the traction force of the traction component (2) on the traction rope (8); Wherein, the traction control terminal (5) specifically includes: A data acquisition module is used to acquire cable status data; wherein the cable status data includes the current cable bending curvature, cable position information and cable unit weight; A cable analysis unit, used for generating a pulling adjustment demand index according to the cable bending curvature and the cable unit weight; a traction adjustment demand analysis module, for determining whether the traction force of the traction component (2) is the optimal traction force based on the traction adjustment demand index; The traction force adjustment unit is used to obtain environmental data during cable installation and the mechanical efficiency of the pulley to generate a traction force correction coefficient for the traction component (2); wherein the environmental data includes environmental wind speed and wind direction angle; the wind direction angle refers to the angle formed between the wind direction and the cable; An adjustment control module is used to adjust the current traction force of the traction component (2) according to the traction force correction coefficient of the traction machine.

2. The traction machine with maximum traction control according to claim 1, characterized in that: The traction assembly (2) specifically comprises: A winding shaft (201), the winding shaft (201) is arranged on one side of the base (1), and the traction rope (8) is in contact connection with the winding shaft (201); a baffle (202), the baffle (202) being fixedly arranged on one side of the winding shaft (201); a driving motor (203), the driving motor (203) being arranged on one side of the baffle (202), and the output end of the driving motor (203) being rotationally connected to the baffle (202); A support platform (204), one end of the support platform (204) is fixedly arranged on the base (1), and the other end of the support platform (204) is fixedly connected to the drive motor (203).

3. The traction machine with maximum traction control according to claim 1, characterized in that: The tractor also includes: An auxiliary component (3), the auxiliary component (3) being arranged on one side of the base (1) and being used to increase the friction of the traction rope so as to improve the stability of the traction rope (8) when it is wound around the traction component (2); Wherein, the auxiliary component (3) specifically includes: A rotating wheel (301), the rotating wheel (301) is rotatably arranged on the base (1), and the traction rope (8) is in contact with the rotating wheel (301); A limiting member (302), wherein the limiting member (302) is fixedly arranged on one side of the rotating wheel (301).

4. The traction machine with maximum traction control according to claim 1, characterized in that: The tractor also includes: an adjusting component (6), the adjusting component (6) being arranged on one side of the traction component (2) and being used for adjusting the position of the traction rope (8) wound around the traction component (2); Wherein, the regulating component (6) specifically comprises: A sliding block (601), the sliding block (601) being slidably arranged on the base (1); A clamping member (602), the clamping member (602) is rotatably disposed on the sliding block (601), and the clamping member (602) is in contact with the traction rope (8); A screw rod (603) is threadedly connected to the sliding block (601), and both ends of the screw rod (603) are rotatably connected to the base (1).

5. The traction machine with maximum traction control according to claim 1, characterized in that: The cable analysis unit specifically includes: The bend curvature analysis module is used to generate a bend curvature health index based on the current cable bend curvature. The bend curvature health index refers to the ratio of the current cable bend curvature to the near end point of the standard bend curvature range. The standard bend curvature range refers to the cable bend curvature under standard working conditions. The cable position analysis module is used to establish a cable tensile analysis model based on the cable position information and the cable unit weight, and generate a cable tensile evaluation index; The traction adjustment demand analysis module is used to generate a traction adjustment demand index based on the bending curvature health index and the cable tensile evaluation index.

6. The traction machine with maximum traction control according to claim 5, characterized in that: The traction force adjustment unit specifically includes: Environmental data acquisition module, used to obtain the environmental wind speed and wind direction angle during cable installation; The wind speed analysis module is used to generate a wind speed impact index based on the ambient wind speed. The wind speed impact index refers to the ratio between the ambient wind speed and the wind speed warning value. The wind speed warning value refers to the minimum wind speed that can cause the cable to shake. The wind direction analysis module is used to generate a wind direction influence coefficient based on the wind direction angle; the wind direction influence coefficient refers to the ratio between the wind direction angle and the middle value of the wind direction angle range; the middle value of the wind direction angle range refers to the average between the maximum wind direction angle and the minimum wind direction angle; The traction correction coefficient generation module is used to establish a correction model and generate a traction correction coefficient based on the wind speed influence index, the wind direction influence coefficient, the mechanical efficiency of the pulley and the traction adjustment demand index.

7. The traction machine with maximum traction control according to claim 6, characterized in that: The method of adjusting the current traction force of the traction component (2) is specifically as follows: A traction force adjustment value of the traction component (2) is generated based on the current traction force of the traction component (2) on the cable and a traction force correction coefficient; the traction force adjustment value of the traction component (2) refers to the product of the current traction force of the traction component (2) on the cable and the traction force correction coefficient.

8. The traction machine with maximum traction control according to claim 1, characterized in that: The tractor also includes: A support assembly (4) is provided on one side of the base (1) and is used to maintain the stability of the traction assembly (2) during operation.

9. The traction machine with maximum traction control according to claim 1, characterized in that: The support assembly (4) specifically comprises: a telescopic member (401), one end of the telescopic member (401) being fixedly arranged on one side of the base (1); An anti-slip member (402) is fixedly arranged on the protruding end of the telescopic member (401).

10. The traction machine with maximum traction control according to claim 2, characterized in that: The traction assembly (2) further comprises: A fixing member (205) is fixedly arranged on the baffle (202), and a hole is opened on the fixing member (205).

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