Special motor electric tower climbing device and power transmission tower

Abstract

The invention discloses a special motor electric tower climbing device which comprises an anti-falling track installed on a power transmission tower main material and a special motor installed on the anti-falling track, the special motor moves up and down along the anti-falling track, a power source, a control system, a handrail and an anti-falling sliding block are installed on the special motor, and the anti-falling sliding block is connected with a safety hook. The special motor comprises an iron core and a winding, the extending direction of the iron core is parallel to the extending direction of the anti-falling track, a groove penetrating front and back in the extending direction is formed in the inner side face of the iron core, the winding is installed on the inner wall of the groove, and the groove wraps the anti-falling track. And an intermediate transmission mechanism is omitted, so that equipment is simplified, gear teeth and abrasion are reduced, the safety is improved, the dead weight of the equipment is reduced, the maintenance workload is reduced, the reliability of the system is improved, the control is easy, and the efficiency of the whole system can be improved in a proper use occasion. The invention further discloses a power transmission tower comprising the electric tower climbing device with the special motor.

Description

Technical Field

[0001] The present invention relates to the field of electric power equipment, and in particular to a special motor electric tower climbing device. In addition, the present invention also relates to a transmission tower comprising the special motor electric tower climbing device. Background Art

[0002] With the construction of UHV, EHV and smart grid, the workload of line operation and maintenance is increasing, and the tower climbing and maintenance work will become more and more frequent. As the height of transmission towers continues to increase, the intensity of tower climbing and maintenance work is also increasing, and the operation efficiency is also decreasing. Therefore, gradually using mechanical equipment to replace human climbing will become the development direction of power maintenance work in the future.

[0003] At present, there are four types of traditional tower climbing devices: shaft elevators, construction elevators, tower climbing machines and portable manned tower climbing devices. The above four manned lifting devices have brought great convenience to the inspection and maintenance of power transmission lines, solving the problem of workers climbing towers on foot and carrying tools, but there are still many problems. Various transmission tower climbing machines are expensive, heavy and not conducive to subsequent maintenance, difficult to control and reduce the work efficiency of the entire system.

[0004] Therefore, how to provide a special motor electric tower climbing device with simple structure and low dead weight is a technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a special motor electric tower climbing device, which uses a special motor to replace a rotating motor, saves the intermediate transmission mechanism, simplifies the equipment, reduces the weight of the equipment, and thus reduces the workload of later maintenance and improves system reliability. Another purpose of the present invention is that 500kV and above transmission towers are required to be equipped with anti-falling rails, but as of now, most towers still do not have anti-falling rails, and the anti-falling rails described in the present invention are basically similar to the existing anti-falling rails in terms of manufacturing complexity, maintenance difficulty, and installation difficulty. It is only necessary to replace the existing anti-falling rails with the anti-falling rails described in the present invention without changing the original structure of the tower and increasing the weight of the tower, so that the tower climbing operation relying on electricity can be achieved.

[0006] In order to solve the above technical problems, the present invention provides a special motor electric tower climbing device, comprising an anti-fall track installed on the main material of the transmission tower and a special motor installed on the anti-fall track, the special motor moves up and down along the anti-fall track, the special motor is installed with a power control system, a handrail and an anti-fall slider, the anti-fall slider is connected with a safety hook, the special motor comprises an iron core and a winding, the extension direction of the iron core is parallel to the extension direction of the anti-fall track, the inner side surface of the iron core is provided with a groove penetrating front and back along the extension direction, the winding is installed on the inner wall of the groove, and the groove wraps the anti-fall track.

[0007] Preferably, the iron core comprises a plurality of silicon steel sheets, which are stacked in sequence along the extension direction of the iron core to form the groove, and the plurality of silicon steel sheets form a plurality of U-shaped installation grooves arranged in sequence along the extension direction, and the winding is embedded in the U-shaped installation groove.

[0008] Preferably, guide grooves are provided on both side walls of the anti-fall track near the transmission tower, and relatively arranged guide bars are provided at the openings of the grooves. The extension directions of the guide grooves and the guide bars are parallel to the extension direction of the anti-fall track, and the guide bars are embedded in the guide grooves.

[0009] Preferably, an annular groove is provided in the guide strip, and a ball is embedded in the annular groove. The ball protrudes from the inner and outer sides of the guide strip and contacts the corresponding inner wall of the guide groove on one side only. The ball can roll back and forth in the annular groove.

[0010] Preferably, a pancake-shaped groove is provided on the opposite side of the guide strip, a guide wheel is installed in the pancake-shaped groove, and the guide wheel is based on the bottom surface of the guide groove.

[0011] Preferably, the guide rail includes an aluminum plate beam arranged on the outside of the guide groove, the cross-section of the aluminum plate beam is a closed rectangular frame matching the shape of the groove, an iron plate beam is embedded in the aluminum plate beam, the cross-section of the iron plate beam is an open rectangular frame, and the opening of the open rectangular hole faces the transmission tower.

[0012] Preferably, a hanging ring is provided on the outer side of the anti-falling sliding block, the hanging ring is connected to one end of a protection rope, and the other end of the protection rope is connected to the safety hook.

[0013] Preferably, a locking groove is provided on the end face of the iron core close to the anti-falling slider, a locking hole connected to the locking groove is provided on the outer wall of the iron core, a latch is provided in the locking hole, an insert plate is provided in the anti-falling slider, a positioning hole is provided on the insert plate, the insert plate can be inserted into the locking groove, and the latch can be inserted into the positioning hole.

[0014] Preferably, the power control system includes a charger, a power battery, an inverter and a controller.

[0015] The present invention provides a transmission tower, comprising a special motor electric tower climbing device as described in any one of the above.

[0016] The present invention provides a special motor electric tower climbing device, comprising an anti-fall track installed on a main material of a transmission tower and a special motor installed on the anti-fall track, the special motor moves up and down along the anti-fall track, a power control system, a handrail and an anti-fall slider are installed on the special motor, the anti-fall slider is connected with a safety hook, the special motor comprises an iron core and a winding, the extension direction of the iron core is parallel to the extension direction of the anti-fall track, the inner side surface of the iron core is provided with a groove penetrating front and back along the extension direction, the winding is installed on the inner wall of the groove, and the groove wraps the anti-fall track.

[0017] Special motors are used to replace rotary motor drives. Special motors convert electrical energy directly into linear motion mechanical energy. They are used in many occasions where rotary motion needs to be converted into special motion. Intermediate transmission mechanisms can be omitted, thereby simplifying the equipment, reducing gear teeth and wear, increasing safety, reducing equipment weight, reducing maintenance workload, improving system reliability, and being easy to control. In appropriate use occasions, the efficiency of the entire system can be improved. The U-shaped design of special motors can greatly optimize the motor magnetic circuit, improve the motor power density, that is, improve the ratio of motor output power to its mass, improve motor efficiency, reduce the mass of special motors and anti-fall tracks, improve the strength of anti-fall tracks, and improve the operating stability of special motors.

[0018] The present invention also provides a transmission tower including the above-mentioned special motor electric tower climbing device. Since the above-mentioned special motor electric tower climbing device has the above-mentioned technical effects, the above-mentioned transmission tower should also have the same technical effects, which will not be introduced in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic structural diagram of a specific embodiment of a special motor electric tower climbing device provided by the present invention;

[0020] FIG2 is a schematic structural diagram of a special motor in a specific embodiment of the special motor electric tower climbing device provided by the present invention;

[0021] FIG3 is a schematic diagram of the installation of a special motor in a specific embodiment of the special motor electric tower climbing device provided by the present invention;

[0022] FIG4 is a schematic structural diagram of an anti-falling slider in a specific embodiment of the electric tower climbing device with a special motor provided by the present invention;

[0023] FIG5 is a schematic diagram of the iron core composition structure in a specific implementation manner of the special motor electric tower climbing device provided by the present invention.

[0024] Among them, 1-special motor; 11-iron core; 12-winding; 13-guide wheel; 14-ball; 15-locking groove; 16-U-shaped mounting groove; 17-latch pin; 18-first spring; 2-anti-fall track; 21-aluminum plate beam; 22-iron plate beam; 3-power supply and control system; 4-handrail; 5-anti-fall slider; 51-safety hook; 52-protection rope; 53-second spring; 54-guide pin; 55-plug plate; 56-hanging ring; 57-rope lock; 6-installation components. DETAILED DESCRIPTION

[0025] The core of the present invention is to provide a special motor electric tower climbing device, which uses a special motor to replace a rotating motor, saves the intermediate transmission mechanism, simplifies the equipment, reduces the weight of the equipment, and thus reduces the workload of later maintenance and improves system reliability. Another core of the present invention is to provide a transmission tower including the above-mentioned special motor electric tower climbing device.

[0026] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Please refer to Figures 1 to 5, Figure 1 is a structural schematic diagram of a specific implementation manner of the special motor electric tower climbing device provided by the present invention; Figure 2 is a structural schematic diagram of the special motor in a specific implementation manner of the special motor electric tower climbing device provided by the present invention; Figure 3 is an installation schematic diagram of the special motor in a specific implementation manner of the special motor electric tower climbing device provided by the present invention; Figure 4 is a structural schematic diagram of the anti-fall slider in a specific implementation manner of the special motor electric tower climbing device provided by the present invention; Figure 5 is a structural schematic diagram of the iron core composition in a specific implementation manner of the special motor electric tower climbing device provided by the present invention.

[0028] The specific embodiment of the present invention provides a special motor electric tower climbing device, including an anti-fall track 2 and a special motor 1. The anti-fall track 2 is installed on the side of the transmission tower, and extends along the side of the transmission tower to form a vertical guide structure. The special motor 1 is installed on the anti-fall track 2. The side of each component close to the transmission tower is defined as the inner side, and the side away from the transmission tower is defined as the outer side. The inner side of the anti-fall track 2 is connected to the main material angle iron of the transmission tower through the installation component 6. Specifically, the installation component 6 includes three installation irons, one of which is located at the top of the main material angle iron of the iron tower, and the other two installation irons are located at the bottom of the angle iron. The three installation irons are connected by bolts and nuts. A hole is opened on the installation iron located at the top of the angle iron and connected to the inner side of the anti-fall track 2 by bolts and nuts, so that the inner side of the anti-fall track 2 is firmly fixed on the tower material, and will not interfere with the tower foot nails, and will not affect the normal tower climbing operation of the operator through the climbing foot nails.

[0029] Among them, the special motor 1 is equipped with a power supply and control system 3, a handrail 4 and an anti-falling slider 5, and the anti-falling slider 5 is connected to a safety hook 51. Specifically, the power supply control system 3 is installed at the lower end of the special motor 1, the handrail 4 and the anti-falling slider 5 are installed at the upper end of the special motor 1, and the anti-falling slider 5 is connected to the safety hook 51, and the safety hook 51 is connected to the staff. During the work process, the staff holds the handrail 4, and the power supply and control system 3 provides power for the special motor 1, driving the special motor 1 to move up and down along the anti-falling track 2, and the anti-falling slider 5 and the safety hook 51 also move up and down with the special motor 1, thereby driving the staff to move up and down.

[0030] Specifically, the special motor 1 includes an iron core 11 and a winding 12. The iron core 11 is a long strip structure. The extension direction of the iron core 11 is parallel to the extension direction of the anti-fall track 2. The inner side of the iron core 11 is provided with a groove that runs through the front and back along the extension direction. The winding 12 is installed on the inner wall of the groove, and the groove wraps the anti-fall track 2.

[0031] A special motor 1 is used to replace the rotary motor drive. The special motor 1 directly converts electrical energy into special motion mechanical energy. It is used in many occasions where rotary motion needs to be converted into special motion. The intermediate transmission mechanism can be omitted, thereby simplifying the equipment, reducing gear teeth and wear, increasing safety, reducing the weight of the equipment, reducing the workload of maintenance, improving the reliability of the system, and being easy to control. In appropriate use occasions, the efficiency of the entire system can be improved. Through the U-shaped design of the special motor, the motor magnetic circuit can be greatly optimized, the motor power density can be improved, that is, the ratio of the motor output power to its mass can be improved, the motor efficiency can be improved, the quality of the special motor and the anti-fall track can be reduced, the anti-fall track strength can be improved, and the operation stability of the special motor can be improved. Specifically, the iron core 11 includes a plurality of silicon steel sheets, and the plurality of silicon steel sheets are stacked in sequence along the extension direction of the iron core 11 to form a groove, and the plurality of silicon steel sheets form a plurality of U-shaped mounting grooves 16 arranged in sequence along the extension direction, and the winding 12 is embedded in the U-shaped mounting groove 16. The guide rail includes an aluminum plate beam 21, the cross section of which is a closed rectangular frame matching the shape of the groove, and an iron plate beam 22 is embedded in the aluminum plate beam 21, the cross section of which is an open rectangular frame, and the opening of the open rectangular hole faces the transmission tower. The aluminum plate beam 21 and the iron plate beam 22 fit tightly inside. The iron plate beam 22 plays the role of conducting the magnetic circuit and strengthening the strength of the anti-fall track 2.

[0032] The windings 12 are arranged in sequence without interfering with each other. The two sides of the windings 12 span six or several slots, and one side shrinks inward after being twisted. When the two windings 12 are arranged, the short side of one winding 12 is placed on the long side of the other winding 12 without interfering with each other, and when connected to three-phase alternating current, the arrangement is A, -C, B, -A, C, -B, -A..., and then a traveling wave magnetic field is generated on the three faces of the special motor 1. After packaging, the end of the winding 12 will not be exposed to the air. After the special motor 1 is connected to the current, an induced current is generated on the upper surface and two side surfaces of the aluminum plate beam 21, and the induced current on the upper surface is basically all transverse current. According to the basic principles of motor science, only transverse current can generate thrust, and longitudinal current does not generate thrust, so compared with ordinary linear induction motors, when working, the aluminum plate surface has not only transverse current, but also longitudinal current. And the anti-fall track 2 is relatively closed, compared with ordinary special induction motors, the leakage magnetic field generated is very small, which greatly improves the thrust and efficiency, and can withstand greater pressure.

[0033] Guide grooves are provided at the positions near the transmission towers on both side walls of the anti-fall track 2, and guide strips arranged oppositely are provided at the opening of the grooves. The extension direction of the guide grooves and the guide strips is parallel to the extension direction of the anti-fall track 2, and the guide strips are embedded in the guide grooves. Among them, an annular groove is provided in the guide strip, and a ball 14 is embedded in the annular groove. The ball 14 protrudes from the inner side and outer side of the guide strip and contacts the inner walls on both sides of the guide groove. The ball 14 can roll forward and backward in the annular groove. A pancake-shaped groove is provided on the opposite side of the guide strip, and a guide wheel 13 is installed in the pancake-shaped groove. The guide wheel 13 is based on the bottom surface of the guide groove. The special motor 1 and the aluminum plate beam 21 are coupled to each other through the ball 14 and the guide wheel 13, so that the special motor 1 can slide freely on the aluminum plate beam 21, and the ball 14 plays a load-bearing role, and the guide wheel 13 plays a role in avoiding the friction between the sides of the special motor 1 and the aluminum plate beam 21, and plays a guiding role.

[0034] In the special motor electric tower climbing device provided in the specific embodiment of the present invention, a hanging ring 56 is provided on the outside of the anti-falling slider 5, and the hanging ring 56 is connected to one end of the protection rope 52, and the other end of the protection rope 52 is connected to the safety hook 51. A locking groove 15 is provided on the end surface of the iron core 11 close to the anti-falling slider 5, and a locking hole connected to the locking groove 15 is provided on the outer wall of the iron core 11, and a latch 17 is provided in the locking hole. A plug plate 55 is provided in the anti-falling slider 5, and a positioning hole is provided on the plug plate 55, and the plug plate 55 can be inserted into the locking groove 15, and the latch 17 can be inserted into the positioning hole.

[0035] The anti-falling slider 5 and the hanging ring 56 are connected to each other by bolts, and the protection rope 52 passes through the hanging ring 56 and is firmly connected to the anti-falling slider 5 by a rope lock 57. The other end of the protection rope 52 is also firmly connected to the safety hook 51 by a rope lock 57. The safety hook 51 can be locked to the anti-falling track 2 when the speed suddenly drops, and the anti-falling hook and its electric tower climbing device can be manually fixed to the anti-falling track 2.

[0036] Specifically, the head of the special motor 1 is provided with three locking grooves 15 perpendicular to the cross section of the special motor 1. A locking hole is provided perpendicular to the upper part of the locking groove 15, and the locking hole passes through the outer wall of the locking groove 15. A latch 17 is inserted into the locking hole, and the latch 17 can move freely up and down in the locking hole. The lower part of the latch is connected to the lower end of the first spring 18, and the upper end of the first spring 18 is connected to the inward protruding part of the top of the locking hole of the special motor 1. When the latch 17 moves upward, it drives the lower end of the first spring 18 to move upward to compress the first spring 18.

[0037] Similarly, the anti-falling slider 5 has a groove in the vertical direction of the cross section, a guide pin 54 is fixed in the groove, the second spring 53 is sleeved on the guide pin 54, one end of the second spring 53 is fixed on the anti-falling slider 5, and the other end is connected to the end of the plug plate 55. The plug plate 55 can slide back and forth in the groove of the anti-falling slider 5, and when sliding outward, the second spring 53 is compressed. When the special motor 1 is energized, the winding 12 around the iron core 11 is equivalent to an electromagnet. Under the action of the magnetic field, the plug plate 55 in the slot of the anti-falling slider 5 is attracted, forcing the plug plate 55 to slide in the direction of the special motor 1. The front end of the plug plate 55 has an oblique angle, and the tail of the latch 17 also has an oblique angle. As the plug plate 55 slides, the latch 17 is lifted up, and the upper and middle part of the plug plate 55 opens. As the plug plate 55 slides, the latch 17 will be pushed into the positioning hole of the plug plate 55 under the action of the first spring 18, thereby connecting the anti-falling slider 5 with the special motor 1. There are three groups of such same connecting devices. Under the action of these three devices, the anti-falling slider 5 is locked on the special motor 1.

[0038] On the basis of the special motor electric tower climbing device provided in the above-mentioned specific embodiments, the power supply and control system 3 includes a charger, a power battery, an inverter and a controller. The power supply and control system 3 is also connected to the special motor 1 through four or more of the above-mentioned similar electromagnetic locking devices, which can be easily disassembled. The power battery is charged by the charger, and the direct current of the power battery is converted into three-phase alternating current through the inverter. Then the three-phase electricity enters the control system, and then controls the speed of the special motor going up the tower. When descending the tower, the gravitational potential energy is converted into kinetic energy, driving the special induction motor to move. After the control system senses the movement of the special induction motor, it generates current to enter the special motor. The special motor generates a magnetic field, and the magnetic field induces current in the aluminum plate beam 21, causing the aluminum plate beam 21 to also generate a magnetic field, and the winding in the special motor cuts the magnetic field, generates an electromotive force, and reversely charges the power battery, thereby reducing the descent speed, reversely charging the power battery, and increasing the number of uses of the electric tower climbing device.

[0039] In addition to the above-mentioned special motor electric tower climbing device, a specific embodiment of the present invention also provides a transmission tower including the above-mentioned special motor electric tower climbing device. For the structure of other parts of the transmission tower, please refer to the prior art and will not be repeated herein.

[0040] The above is a detailed introduction to the special motor electric tower climbing device and transmission tower provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A special motor electric tower climbing device, characterized in that: The invention comprises an anti-fall track (2) installed on a main material of a transmission tower and a special motor (1) installed on the anti-fall track (2); the special motor (1) moves up and down along the anti-fall track (2); a power supply and control system (3), a handrail (4) and an anti-fall slider (5) are installed on the special motor (1); the anti-fall slider (5) is connected to a safety hook (51); the special motor (1) comprises an iron core (11) and a winding (12); the extension direction of the iron core (11) is parallel to the extension direction of the anti-fall track (2); the inner side surface of the iron core (11) is provided with a groove penetrating forward and backward along the extension direction; the winding (12) is installed on the inner wall of the groove; the groove wraps the anti-fall track (2).

2. The special motor electric tower climbing device according to claim 1 is characterized in that: The iron core (11) comprises a plurality of silicon steel sheets, the plurality of silicon steel sheets being stacked in sequence along an extension direction of the iron core (11) to form the groove, the plurality of silicon steel sheets forming a plurality of U-shaped mounting grooves (16) arranged in sequence along the extension direction, and the winding (12) being embedded in the U-shaped mounting grooves (16).

3. The special motor electric tower climbing device according to claim 2 is characterized in that: Guide grooves are provided on both side walls of the anti-fall track (2) near the transmission tower, and guide strips arranged opposite to each other are provided at the opening of the grooves. The extension direction of the guide grooves and the guide strips is parallel to the extension direction of the anti-fall track (2), and the guide strips are embedded in the guide grooves.

4. The special motor electric tower climbing device according to claim 3 is characterized in that: An annular groove is provided in the guide strip, a ball (14) is embedded in the annular groove, the ball (14) protrudes from the inner side and the outer side of the guide strip, and only one side contacts the corresponding side inner wall of the guide groove, and the ball (14) can roll forward and backward in the annular groove.

5. The special motor electric tower climbing device according to claim 4 is characterized in that: A pancake-shaped groove is provided on the opposite side of the guide strip, a guide wheel (13) is installed in the pancake-shaped groove, and the guide wheel (13) is based on the bottom surface of the guide groove.

6. The special motor electric tower climbing device according to claim 3 is characterized in that: The guide rail comprises an aluminum plate beam (21) arranged outside the guide groove, the cross section of the aluminum plate beam (21) being a closed rectangular frame matching the shape of the groove, an iron plate beam (22) being embedded in the aluminum plate beam (21), the cross section of the iron plate beam (22) being an open rectangular frame, and the opening of the open rectangular hole facing the transmission tower.

7. The special motor electric tower climbing device according to claim 1, characterized in that: A hanging ring (56) is provided on the outside of the anti-falling sliding block (5), the hanging ring (56) is connected to one end of a protection rope (52), and the other end of the protection rope (52) is connected to the safety hook (51).

8. The special motor electric tower climbing device according to claim 7, characterized in that: The iron core (11) is provided with a locking groove (15) on its end surface close to the anti-falling slider (5); a locking hole communicating with the locking groove (15) is provided on the outer wall of the iron core (11); a latch (17) is provided in the locking hole; an insert plate (55) is provided in the anti-falling slider (5); a positioning hole is provided on the insert plate (55); the insert plate (55) can be inserted into the locking groove (15); and the latch (17) can be inserted into the positioning hole.

9. The special motor electric tower climbing device according to any one of claims 1 to 8, characterized in that: The power supply and control system (3) comprises a charger, a power battery, an inverter and a controller.

10. A transmission tower, characterized in that: It comprises a special motor electric tower climbing device as described in any one of claims 1 to 9.

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