CN101741041B - Transmission line deicer - Google Patents

Abstract

The invention provides a deicer. A current line patrol robot can be transformed into a deicing robot for a high-tension transmission line by directly arranging or equipping the deicer on the line patrol robot. In the invention, a milling cutter which is fixed on a planetary gear shaft is used for deicing. In the planetary gear transmission, the planetary gear shaft rotates around a shaft axis and a sun gear simultaneously, thereby realizing rotating deicing for transmission line. The invention has the advantages of good deicing effect, high efficiency and high safety.

Description

A power line deicing device

technical field

The invention relates to a power transmission line maintenance device, in particular to a power transmission line deicing device.

Background technique

Over the years, especially in 2008, the overhead transmission lines in many places were covered with ice due to freezing rain in winter and spring, and lead (ground) wires were broken, hardware and towers were damaged due to conductor galloping. Even accidents such as collapses cause large-scale power outages, causing heavy losses and seriously threatening the safe and stable operation of the power grid.

At present, most of the deicing work on transmission lines in China still adopts manual deicing methods, such as tapping with sticks or shooting with rifles, etc., which requires more personnel and resource input and cannot achieve the required efficiency. , It is also difficult to guarantee the life safety of deicing personnel. Or adopt the method of melting ice with high-voltage lines, but melting ice with high-voltage lines consumes too much energy, and the energy consumption of applying mechanical methods to deicing is far less than that of high-current melting ice. The high-current ice-melting method has higher efficiency, but it is costly and complicated to operate, which has a great impact on system safety.

Contents of the invention

The object of the present invention is to provide a power line deicing device, which not only has good deicing effect, but also has high efficiency and high safety.

The technical solution to achieve the purpose of the present invention is: a power line deicing device, including a sun gear fastened on the power line, an outer shell arranged outside the sun gear with an "O"-shaped inner wall, and a sun gear set along the outer wall of the sun gear. The cage, the shell cover connected to the top and bottom of the shell, the driving motor and the reducer are characterized in that: it includes 2 to 4 planetary gear shafts, one end of the planetary gear shaft is connected with a milling cutter, and the other end is connected to the motor gear through the transmission gear. The shafts are connected and placed in the cavity between the sun gear and the housing. The planetary gear shafts are arranged along the circumference of the sun gear. One end of the motor gear shaft cooperates with the external gear through the transmission gear. The external gear, planetary gear shaft, The sun gear and the cage form a planetary gear transmission mechanism.

Moreover, a pair of outer gear rollers are symmetrically arranged on the left and right sides of the outer gear, and the outer gear rollers are connected to the inner wall of the housing through bearings. The contact surface between the outer gear and the outer gear rollers is conical, and the cone top of the outer gear rollers Coincident on the axis of the external gear.

And a back cover is arranged on one end of the power line deicing device, one end of the back cover is connected to the outer wall of the sun gear, and the other end is connected to the shell.

One end of the cage is connected to the shell through the baffle, and the other end is matched with the inner wall of the back cover through the rollers of the cage. There is a groove on the contact surface between the baffle and the cage, and balls are arranged in the groove. The rollers of the cage and the back cover The contact surface of the inner wall is conical, and the top of the cone of the cage roller coincides with the axis of the sun gear.

And three pairs of bearings are symmetrically arranged on the planetary gear shaft, the inner pair of bearings cooperates with the outer gear, the middle pair of bearings cooperates with the sun gear, and the outer pair of bearings cooperates with the cage.

Moreover, the sun gear, the cage, the shell and the rear cover are all formed by fastening the upper and lower parts, and are respectively connected by positioning pins.

Moreover, the drive motor is connected to the shell through the cover plate.

The advantages of the present invention are: 1. Deicing power lines with a milling cutter has good effect. 2. Walking on the transmission line with the maintenance robot, the efficiency is high. 3. No manual operation is required in the whole process, the safety performance is good, and the deicing cost is low.

Description of drawings

Fig. 1 is a front view of the deicing device.

Fig. 2 is a left side view of the deicing device.

Fig. 3 is a sectional view of A-A in Fig. 2 .

Fig. 4 is a schematic diagram of the transmission of the deicing device.

Fig. 5 is a schematic diagram of an external gear roller.

Fig. 6 is a right side view of the deicing device.

Fig. 7 is a schematic diagram of the connection between the milling cutter and the planetary gear shaft.

Fig. 8 is a schematic diagram of a partial structure of the cage.

Fig. 9 is a reference diagram of the use state of the deicing device.

Detailed ways

Figure 1. Milling cutter. 2. Planetary gear shaft. 3. Shell. 4. Shell cover. 5. Sun wheel. 6. External gear. 7. Cage. 8. Back cover. 9. Baffle. 10. Motor gear shaft. 11. Cover plate. 12. Drive motor. 13. External gear roller. 15. Cage rollers. 16. Locating pins. 17 balls. 18 connection plates. 19 Robots walking along transmission lines. 20. Power lines.

The present invention will be further described in conjunction with the following embodiments in conjunction with FIGS. 1 to 10 .

The present invention relates to a power transmission line maintenance device, especially a power transmission line deicing device, which includes a sun gear 5 fastened on the power transmission line 20, a casing 3 arranged outside the sun gear 5 and having an "O"-shaped inner wall, The cage 7 arranged along the circumference of the outer wall of the sun gear 5, the casing cover 4 connected to the top and bottom of the casing 3, the drive motor 12 and the reducer are characterized in that they include 2 to 4 planetary gear shafts 2, and the planetary gear shafts 2 One end is connected with a milling cutter 1, and the other end is connected with the motor gear shaft 10 through the transmission gear and placed in the cavity between the sun gear 5 and the casing 3. The planetary gear shafts 2 are arranged along the circumference of the sun gear 5, and the motor gear shaft One end of 10 cooperates with the external gear 6 through the transmission gear, and the external gear 6, the planetary gear shaft 2, the sun gear 5 and the cage 7 form a planetary gear transmission mechanism.

During work, the power line deicing device is connected with the robot 19 walking along the power line through the connecting plate 18, and the power line deicing device can walk along the power line under the drive of the robot 19 walking along the power line. The sun gear 5, the planetary gear shaft 2, the external gear 6, and the motor gear shaft 10 form a planetary gear transmission. During operation, the sun gear 5 is axially stationary relative to the power line 20, and the drive motor 12 drives the motor gear shaft 10 to rotate, and the motor gear shaft 10 rotates through the motor. The gear shaft 10, transmission gear, external gear 6, and planetary gear shaft 2 transmit power to the milling cutter 1, so that the milling cutter 1 revolves around the sun gear 5 while rotating. In this way, the milling cutter 1 can remove the icing on the transmission line. A certain safety gap should be left between the milling cutter 1 and the transmission line 20 to ensure that the milling cutter 1 will not damage the transmission line 20 during the deicing process. The robot 19 that walks along the transmission line can be selected from the patent No.: 200410061316.8, the name is: a robot that travels along the overhead high-voltage transmission line, and the application date is: the robot recorded in the invention on December 10, 2004.

Moreover, a pair of outer gear rollers 13 are symmetrically arranged on the left and right sides of the outer gear 6, and the outer gear rollers 13 are connected to the inner wall of the housing 3 through bearings. The contact surface between the outer gear 6 and the outer gear rollers 13 is tapered, and The cone top of external gear roller 13 coincides on the external gear axis.

A pair of outer gear rollers 13 are arranged symmetrically on the left and right sides of the outer gear 6, and the outer gear 6 is positioned so that it will not move up and down when rotating.

A further technical solution may be that a rear cover 8 is arranged at one end of the power line deicing device, one end of the rear cover 8 is connected to the outer wall of the sun gear 5 , and the other end is connected to the casing 3 .

The back cover 8 seals the power line deicing device, so that the inside keeps a relatively airtight environment, and its use effect cannot be affected by rain or snow.

And one end of the retainer 7 is connected to the shell through the baffle 9, and the other end is matched with the inner wall of the back cover 8 through the retainer roller 15. There is a groove on the contact surface between the baffle 9 and the retainer 7, and a ball 17 is arranged in the groove. Inside, the contact surface between the cage roller 15 and the inner wall of the back cover 8 is conical, and the cone top of the cage roller 15 coincides with the axis of the sun gear 5 .

The cage 7 is used for positioning the planetary gear shaft 2 provided thereon.

The contact surface between the cage roller 15 and the upper part of the back cover 8 is a conical structure, and the tops of the two conical structures are kept coincident and the coincident point is on the central axis of the sun gear 5. The cage roller 15 follows the cage 7 around the sun. When the wheel 5 revolves, the friction between the cage roller 15 and the back cover 8 is rolling friction, which effectively reduces the coefficient of friction and prolongs its service life.

And three pairs of bearings are symmetrically arranged on the planetary gear shaft 2 , the inner pair of bearings cooperates with the external gear 6 , the middle pair of bearings cooperates with the sun gear 5 , and the outer pair of bearings cooperates with the cage 7 .

The inner ring gears of each bearing are matched with the planetary gear shaft 2, and the outer ring gears are matched with respective corresponding workpieces.

A further technical solution may also be that the sun gear 5, the cage 7, the casing 3, and the rear cover 8 are all snapped together by upper and lower parts, and are respectively connected by positioning pins.

Each main component is made of upper and lower parts snapped together, easy to install and disassemble, and easy to repair in case of failure.

Moreover, the driving motor 12 is connected to the casing 3 through the cover plate 11 .

The power of the drive motor 12 is output from the motor gear shaft 10 after deceleration.

Claims (7)

1. A transmission line de-icing device, comprising a sun gear fastened on the transmission line, an outer casing with an "O" shape on the inner wall, a cage arranged along the circumference of the outer wall of the sun gear, and the top of the casing and The shell cover connected to the bottom, the driving motor and the reducer are characterized in that it includes 2 to 4 planetary gear shafts, one end of the planetary gear shaft is connected with a milling cutter, and the other end is connected with the motor gear shaft through the transmission gear and placed on the sun gear In the cavity between the planetary gear and the shell, the planetary gear shafts are arranged along the circumference of the sun gear, and one end of the motor gear shaft cooperates with the external gear through the transmission gear. The external gear, the planetary gear shaft, the sun gear and the cage form a planet Gear transmission mechanism. 2. A power line deicing device according to claim 1, characterized in that: a pair of outer gear rollers are symmetrically arranged on the left and right sides of the outer gear, and the outer gear rollers are connected to the inner wall of the housing through bearings, The contact surface of the external gear and the external gear roller is conical, and the cone top of the external gear roller is coincident on the axis of the external gear. 3. A power line deicing device according to claim 1, characterized in that: a back cover is arranged on one end of the power line deicing device, one end of the back cover is connected to the outer wall of the sun gear, and the other end is Connect with the shell. 4. A transmission line deicing device according to claim 1, characterized in that: one end of the cage is connected to the shell through a baffle, the other end is matched with the inner wall of the rear cover through the cage roller, and the baffle and the cage There is a groove on the contact surface, and balls are arranged in the groove. The contact surface between the cage roller and the inner wall of the back cover is tapered, and the cone top of the cage roller coincides with the axis of the sun gear. 5. A transmission line deicing device according to claim 1, characterized in that three pairs of bearings are symmetrically arranged on the planetary gear shaft, the inner pair of bearings cooperates with the outer gear, and the middle pair of bearings cooperates with the sun gear Fitting, the outer pair of bearings fits into the cage. 6. A transmission line deicing device according to claim 1, 3 or 4, characterized in that: the sun gear, the cage, the casing, and the rear cover are all buckled together by upper and lower parts, and passed through The positioning pins are connected separately. 7. The power line deicing device according to claim 1, characterized in that the driving motor is connected to the casing through a cover plate.

Images