Intelligent miniaturized device for cable laying and use method of intelligent miniaturized device

Abstract

The invention discloses a cable laying intelligent miniaturization device and a use method thereof, and belongs to the technical field of cable laying, and the cable laying intelligent miniaturization device comprises a cable traction machine and a cable conveyor; the cable tractor is used for pulling a cable and comprises a first motor, a reduction gearbox, a pulley block and a first rack, an output shaft of the first motor is connected with the input end of the reduction gearbox, the pulley block comprises a first pulley, a support and a plurality of second pulleys, and the first pulley is connected with the output end of the reduction gearbox; the problems that clamping force cannot be controlled through manual clamping of traditional cable laying equipment, traction force is not fed back, and conveying equipment is heavy and bloated are solved, the intelligent and miniaturized cable laying device is provided, and an effective tool and important technical support are provided for cable laying in a complex environment.

Description

Technical Field

[0001] The present invention relates to the technical field of cable laying, and in particular to an intelligent miniaturized cable laying device and a use method thereof. Background Art

[0002] Traditional cable laying, conveying and traction equipment has poor portability and low intelligence. Its installation, layout and use are limited by the environment of the on-site power channel. Taking the commonly used conveyor as an example, it is only suitable for the cable trench of the cover well and the working conditions of large and medium-sized tunnels. For the construction conditions of narrow spaces such as pipe laying, bridge frame, and 2.4-meter small diameter tunnel, it is limited by its size and weight and cannot be placed in the cable double-hole well. In addition, the traditional cable traction machine can only set the motor speed based on experience, and cannot obtain the traction force for the cable, resulting in damage to the cable during the pulling process. The cable conveyor needs to wait for the cable to enter the conveyor before manually clamping the track wheel group with a socket wrench, which will directly affect the traction force and side pressure of the cable in a certain section, thereby causing external damage to the cable, the inability to transport the cable, and even the inability to implement the cable project. The above problems have put forward urgent requirements for the improvement of the intelligence, miniaturization and high integration of cable laying, conveying and traction equipment. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides an intelligent miniaturized cable laying device and a method of using the device to solve the technical problems that the prior art has poor portability and low intelligence, its installation, layout and use are limited by the environment of the on-site power channel, and it is impossible to obtain traction force for the cable, and it is necessary to manually use a socket wrench to clamp the track wheel assembly after the cable enters the conveyor.

[0004] The present invention adopts the following technical solution.

[0005] A first aspect of the present invention discloses an intelligent miniaturized device for laying cables, comprising a cable tractor and a cable conveyor;

[0006] The cable traction machine is used for traction of cables. The cable traction machine comprises a first motor, a reduction box, a pulley block and a first frame. The output shaft of the first motor is connected to the input end of the reduction box. The pulley block comprises a first pulley, a bracket and a plurality of second pulleys. The first pulley is connected to the output end of the reduction box. The bracket is connected to the first frame. The plurality of second pulleys are rotatably connected to the bracket. A pressure sensing component is arranged on the second pulley in the middle position for sensing and monitoring the traction force of the cable.

[0007] The cable conveyor is used for automatic cable feeding sensing and servo clamping. The cable conveyor includes a second frame, a second motor, a reducer, a guide roller group, a track wheel group, a servo motor, a screw and an infrared sensor. The second motor and the reducer are connected to the track wheel group, the track wheel group is slidingly connected to the second frame, the track wheel group is located at both ends of the second frame, the guide roller group and the servo motor are connected to the second frame, the infrared sensor is located on the guide roller group, the output shaft of the servo motor is connected to the screw, the two track wheel groups are threadedly connected to the screw, the output shaft of the second motor is connected to the input end of the reducer, and the output end of the reducer is connected to the input end of the track wheel group.

[0008] As an improvement, the first motor is used to provide traction, the reduction box is used to convert the high speed and low torque output by the first motor into a low speed and high torque, and the second pulley is rotationally connected to the first bracket by setting a pulley shaft.

[0009] As an improvement, the pressure sensing component is a flexible piezoelectric sensor, and the flexible piezoelectric sensor is arranged between the pulley shaft on the second pulley in the middle position and the second pulley.

[0010] As an improvement, the lead screw is a bidirectional lead screw, and the two track wheel assemblies are respectively located on both sides of the middle of the lead screw.

[0011] As an improvement, an infrared sensor is used to sense the cable entering the cable conveyor through the guide roller group, and the servo motor controls the spacing of the track wheel group through the screw rod.

[0012] As an improvement, the infrared sensor is electrically connected to the servo motor.

[0013] As an improvement, a reducer is used to convert the high-speed and low-torque output of the second motor into a low-speed and high-torque. The reducer includes a housing and a gear set. The gear set includes a plum blossom coupling, a first bevel gear, a second bevel gear, and a gear shaft. The plum blossom coupling, the first bevel gear, the second bevel gear, and the gear shaft are all rotatably connected to the housing. The housing is connected to the track wheel group. The plum blossom coupling is coaxially connected to the first bevel gear. The first bevel gear is meshed with the second bevel gear. A transmission gear meshing with the gear shaft is provided on one side of the second bevel gear.

[0014] A second aspect of the present invention discloses an intelligent miniaturized device for laying cables, comprising the following steps:

[0015] Lay the cable and use a wire mesh to fix the cable end. One end of the wire mesh is fixed by a hemp rope, and one end of the hemp rope is fixed to the cable traction machine.

[0016] The cable traction machine outputs tension, the pressure sensor in the pulley block shows the force, and the cable end gradually moves to the cable conveyor;

[0017] When the end of the cable enters the cable conveyor, the infrared sensor receives infrared rays because the cable blocks them, and the output signal indicates that the cable has entered the cable conveyor. The servo motor receives the signal and starts to rotate to clamp the cable. When the track wheel group of the cable conveyor is in close contact with the cable, the output torque reaches the maximum, and the distance between the track wheels no longer changes.

[0018] When the cable end enters the next cable conveyor, the infrared sensor of the guide roller group continues to sense the cable entry situation, and the servo motor is driven by the chain and the lead screw to clamp the cable and then transmit it. The cable traction machine and the cable conveyor work together to transport and lay the cable according to the arranged position.

[0019] As an improvement, the cable is an AC power cable with a voltage level of 110kV. The cable traction machine outputs a pulling force of 200kg. When the pressure sensor shows that the force is less than 200kg, it is within the normal range. The traction speed output by the cable traction machine through the reduction box is 1.5m / s.

[0020] As an improvement, the servo motor clamps at a speed of 1m / s with a torque of 3000N*m.

[0021] The beneficial effect of the present invention is that, compared with the prior art,

[0022] The present invention provides an intelligent and miniaturized cable laying device, which specifically includes a cable traction machine and a cable conveyor. The cable traction machine is provided with a pressure sensing component, which can sense and monitor the traction force of the cable to prevent the cable from being pulled; the cable conveyor has automatic cable feeding sensing and servo clamping functions, and the second motor and the reducer are integrated through a gear set to reduce the overall size, which can be applied to narrow laying environments. The present invention avoids the problems of the manual clamping of traditional cable laying equipment that cannot control the clamping force, the traction force has no feedback, and the conveying equipment is bulky and bloated, and provides an intelligent and miniaturized cable laying device, providing effective tools and important technical support for cable laying in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the cable traction machine of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the cable pulling conveyor of the present invention;

[0025] Figure 3 is an internal schematic diagram of the reducer of the present invention;

[0026] Figure 4 It is a bottom view schematic diagram of the cable conveyor of the present invention.

[0027] 1. The first motor; 2. The reduction gearbox; 3. The pulley block; 4. The first frame; 5. The second frame; 6. The second motor; 7. The reduction gear; 8. The guide roller block; 9. The track wheel block; 10. The servo motor; 11. The lead screw; 12. The plum blossom coupling; 13. The first bevel gear; 14. The second bevel gear; 15. The gear shaft. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0029] Example 1

[0030] like Figure 1-4 As shown, the intelligent miniaturized device for laying cables includes a cable traction machine and a cable conveyor;

[0031] The cable traction machine is used for traction of cables. The cable traction machine comprises a first motor 1, a reduction box 2, a pulley block 3 and a first frame 4. The output shaft of the first motor 1 is connected to the input end of the reduction box 2. The pulley block 3 comprises a first pulley, a bracket and a plurality of second pulleys. The first pulley is connected to the output end of the reduction box 2. The bracket is connected to the first frame 4. The plurality of second pulleys are rotatably connected to the bracket. A pressure sensing component is arranged on the second pulley in the middle position to sense and monitor the traction force of the cable to prevent the cable from being pulled.

[0032] The cable conveyor is used for automatic cable feeding sensing and servo clamping, and the second motor 6 and the reducer 7 are integrated through a gear set to reduce the size of the cable conveyor, which can be used in narrow laying environments. The cable conveyor includes a second frame 5, a second motor 6, a reducer 7, a guide roller group 8, a track wheel group 9, a servo motor 10, a screw 11 and an infrared sensor. The second motor 6 and the reducer 7 are both connected to the track wheel group 9, and the track wheel group 9 is slidingly connected to the second frame 5. The track wheel group 9 is located at both ends of the second frame 5, the guide roller group 8 and the servo motor 10 are both connected to the second frame 5, the infrared sensor is located on the guide roller group 8, the output shaft of the servo motor 10 is connected to the screw 11, and the two track wheel groups 9 are threadedly connected to the screw 11, the output shaft of the second motor 6 is connected to the input end of the reducer 7, and the output end of the reducer 7 is connected to the input end of the track wheel group 9.

[0033] In a preferred but non-limiting embodiment of the present invention, the first motor 1 is used to provide traction, the reduction gearbox 2 is used to convert the high-speed and low-torque output of the first motor 1 into a low-speed and high-torque for pulling the cable, and the second pulley is rotatably connected to the first bracket by setting a pulley shaft.

[0034] In a preferred but non-limiting embodiment of the present invention, the pressure sensing component is a flexible piezoelectric sensor, and the flexible piezoelectric sensor is arranged between the pulley shaft on the second pulley in the middle position and the second pulley. The principle of the flexible piezoelectric sensor is based on the deformation response of the flexible elastomer. When an external force acts on the flexible piezoelectric sensor, the flexible elastomer in the flexible piezoelectric sensor will deform, and the deformation causes the resistance value to change. By measuring the resistance value of the flexible elastomer, the magnitude of the force acting on the flexible piezoelectric sensor can be obtained.

[0035] In a preferred but non-limiting embodiment of the present invention, the screw rod 11 is a bidirectional screw rod, and the two track wheel sets 9 are respectively located on both sides of the middle of the screw rod 11 .

[0036] In a preferred but non-limiting embodiment of the present invention, an infrared sensor is used to sense the cable entering the cable conveyor through the guide roller group 8, the servo motor 10 controls the spacing of the track wheel group 9 through the screw rod 11, automatically clamps the cable, and the second motor 6 and the reducer 7 are integrated to drive the track wheel group 9 through the gear group to convey the cable.

[0037] In a preferred but non-limiting embodiment of the present invention, the infrared sensor is electrically connected to the servo motor 10 .

[0038] In a preferred but non-restrictive embodiment of the present invention, the reducer 7 includes a housing and a gear set, and the gear set includes a plum blossom coupling 12, a first bevel gear 13, a second bevel gear 14, and a gear shaft 15. The plum blossom coupling 12, the first bevel gear 13, the second bevel gear 14, and the gear shaft 15 are all rotatably connected to the housing, and the housing is connected to the track wheel group 9. The plum blossom coupling 12 is coaxially connected to the first bevel gear 13, and the first bevel gear 13 is meshed with the second bevel gear 14 to achieve the function of rotating the rotation direction by 90°, and converting the vertical rotation of the conveyor into a horizontal rotation, which is consistent with the horizontal movement direction of the track. A transmission gear meshing with the gear shaft 15 is set on one side of the second bevel gear 14 to reduce the high speed output by the second motor 6 and increase the torque at the same time. The gear shaft 15 is connected to the input end of the track wheel group 9. The overall design has high power transmission efficiency, a small number of parts, and a compact structure.

[0039] During use, the second frame 5 is fixed on the ground, and the second frame 5 provides support for the components on its surface. The output shaft of the second motor 6 is directly connected to the reducer 7, and the high speed and low torque of the second motor 6 is converted into a low speed and high torque output. The traditional cable conveyor adopts a split motor and a reducer. The motor output shaft transmits power to the transmission shaft through a coupling, and the transmission shaft transmits power to the reducer through a coupling connected to the reducer. After the reducer is decelerated, the reducer output shaft transmits power to the drive sprocket, and the drive sprocket drives the chain to achieve the purpose of conveying the cable. The traditional cable conveyor transmission mode has a large volume, low efficiency, and redundant components. The second motor-reducer integrated structure of the device solves the above shortcomings. In addition, the cable conveyor adopts an automated intelligent clamping device. When the cable enters between the track wheel group 9 of the cable conveyor, the infrared sensor on the guide roller group 8 is blocked, and the servo motor 3 receives the signal and starts to rotate, and transmits power to the screw rod 4 through the chain. The screw rod 11 drives the track wheel group 9 to move toward each other and clamp the cable. The clamping force of the cable is equal to the output torque of the servo motor 10 , and the clamping force on the cable can be controlled by controlling the output torque of the servo motor 10 .

[0040] Example 2

[0041] The method for using the intelligent miniaturized cable laying device comprises the following steps:

[0042] Step 1, laying the cable, using a wire mesh to fix the cable end, one end of the wire mesh is fixed by a hemp rope, and one end of the hemp rope is fixed to the cable traction machine;

[0043] Step 2: The cable traction machine outputs a pulling force, the pressure sensor in the pulley block 3 shows that it is stressed, and the cable end gradually moves to the cable conveyor;

[0044] Step 3, when the end of the cable enters the cable conveyor, the infrared sensor blocks the infrared reception due to the cable, and the output signal indicates that the cable enters the cable conveyor. The servo motor 10 receives the signal and starts to rotate to clamp. When the track wheel group 9 of the cable conveyor is in close contact with the cable, the output torque reaches the maximum, and the distance of the track wheel group 9 no longer changes;

[0045] Step 4, when the cable end enters the next cable conveyor, the infrared sensor of the guide roller group 8 continues to sense the cable entry situation, the servo motor 10 is driven by the chain and the lead screw 11, the cable is clamped and then transmitted, and the cable traction machine and the cable conveyor work together to transport and lay the cable according to the arranged position.

[0046] In a preferred but non-limiting embodiment of the present invention, in step 1 and step 2, the cable is an AC power cable with a voltage level of 110kV, the cable traction machine outputs a pulling force of 200kg, and when the pressure sensor shows that the force is less than 200kg, it is in a normal range, and the traction speed output by the cable traction machine through the reduction box 2 is 1.5m / s.

[0047] In a preferred but non-limiting embodiment of the present invention, in step 3 and step 4, the servo motor 10 performs clamping at a speed of 1 m / s and a torque of 3000 N*m.

[0048] The beneficial effect of the present invention is that, compared with the prior art,

[0049] This device provides an intelligent and miniaturized cable laying device, which specifically includes a cable traction machine and a cable conveyor. The cable traction machine is provided with a pressure sensing component, which can sense and monitor the traction force of the cable to prevent the cable from being pulled; the cable conveyor has automatic cable feeding sensing and servo clamping functions, and the main motor and the reducer are integrated through a gear set to reduce the size of the conveyor, which can be used in narrow laying environments. This device avoids the problems of the traditional cable laying equipment's manual clamping that cannot control the clamping force, the traction force has no feedback, and the conveying equipment is bulky and bloated, and provides an intelligent and miniaturized cable laying device, providing effective tools and important technical support for cable laying in complex environments.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. Intelligent miniaturized cable laying device, characterized by: Including cable traction machine and cable conveyor; The cable traction machine is used for traction of cables. The cable traction machine comprises a first motor, a reduction box, a pulley block and a first frame. The output shaft of the first motor is connected to the input end of the reduction box. The pulley block comprises a first pulley, a bracket and a plurality of second pulleys. The first pulley is connected to the output end of the reduction box. The bracket is connected to the first frame. The plurality of second pulleys are rotatably connected to the bracket. A pressure sensing component is arranged on the second pulley in the middle position for sensing and monitoring the traction force of the cable. The cable conveyor is used for automatic cable feeding sensing and servo clamping. The cable conveyor includes a second frame, a second motor, a reducer, a guide roller group, a track wheel group, a servo motor, a screw and an infrared sensor. The second motor and the reducer are connected to the track wheel group, the track wheel group is slidingly connected to the second frame, the track wheel group is located at both ends of the second frame, the guide roller group and the servo motor are connected to the second frame, the infrared sensor is located on the guide roller group, the output shaft of the servo motor is connected to the screw, the two track wheel groups are threadedly connected to the screw, the output shaft of the second motor is connected to the input end of the reducer, and the output end of the reducer is connected to the input end of the track wheel group.

2. The intelligent miniaturized cable laying device according to claim 1, characterized in that: The first motor is used to provide traction, the reduction box is used to convert the high speed and low torque output by the first motor into a low speed and high torque, and the second pulley is rotatably connected to the first bracket by setting a pulley shaft.

3. The intelligent miniaturized cable laying device according to claim 2, characterized in that: The pressure sensing component is a flexible piezoelectric sensor, and the flexible piezoelectric sensor is arranged between the pulley shaft on the second pulley at the middle position and the second pulley.

4. The intelligent miniaturized cable laying device according to claim 1, characterized in that: The lead screw is a bidirectional lead screw, and the two track wheel assemblies are respectively located on both sides of the middle of the lead screw.

5. The intelligent miniaturized cable laying device according to claim 1, characterized in that: The infrared sensor is used to sense the cable entering the cable conveyor through the guide roller group, and the servo motor controls the spacing of the track wheel group through the screw rod.

6. The intelligent miniaturized cable laying device according to claim 5, characterized in that: The infrared sensor is electrically connected to the servo motor.

7. The intelligent miniaturized cable laying device according to claim 1, characterized in that: The reducer is used to convert the high-speed and low-torque output of the second motor into a low-speed and high-torque. The reducer includes a housing and a gear set. The gear set includes a plum blossom coupling, a first helical gear, a second helical gear, and a gear shaft. The plum blossom coupling, the first helical gear, the second helical gear, and the gear shaft are all rotatably connected to the housing. The housing is connected to the track wheel set. The plum blossom coupling is coaxially connected to the first helical gear. The first helical gear is meshed with the second helical gear. A transmission gear meshing with the gear shaft is set on one side of the second helical gear.

8. A method for using an intelligent miniaturized cable laying device, based on the intelligent miniaturized cable laying device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Lay the cable and use a wire mesh to fix the cable end. One end of the wire mesh is fixed by a hemp rope, and one end of the hemp rope is fixed to the cable traction machine. The cable traction machine outputs tension, the pressure sensor in the pulley block shows the force, and the cable end gradually moves to the cable conveyor; When the end of the cable enters the cable conveyor, the infrared sensor receives infrared rays because the cable blocks them, and the output signal indicates that the cable has entered the cable conveyor. The servo motor receives the signal and starts to rotate to clamp the cable. When the track wheel group of the cable conveyor is in close contact with the cable, the output torque reaches the maximum, and the distance between the track wheels no longer changes. When the cable end enters the next cable conveyor, the infrared sensor of the guide roller group continues to sense the cable entry situation, and the servo motor is driven by the chain and the lead screw to clamp the cable and then transmit it. The cable traction machine and the cable conveyor work together to transport and lay the cable according to the arranged position.

9. The method for using the intelligent miniaturized cable laying device according to claim 8, characterized in that: The cable is an AC power cable with a voltage level of 110kV. The cable traction machine outputs a pulling force of 200kg. When the pressure sensor shows that the force is less than 200kg, it is within the normal range. The traction speed output by the cable traction machine through the reduction box is 1.5m / s.

10. The method for using the intelligent miniaturized cable laying device according to claim 8, characterized in that: The servo motor clamps at a speed of 1m / s and a torque of 3000N*m.

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