Multi-power transmission line deicing device and method based on worm motor

Abstract

The invention relates to a multi-power transmission line deicing device and method based on a worm motor, and the device mainly comprises a housing, and the upper end of the housing is hung on a transmission line through a hanging lug and is tightly attached to the transmission line; a worm mechanism is installed in the shell and comprises a servo motor, the output end of the servo motor is coaxially connected with a turbine, and the turbine is meshed with a worm. The worm is coaxially connected with the half gear; a rack is installed on one side of the half gear, the lower end of the rack is connected with the shell through a force storage spring, and the upper end of the rack is connected with a knocking rod. And when the half gear is engaged with the rack, the rack drives the knocking rod to move up and down and knock the shell. According to the multi-power transmission line deicing device and method based on the worm motor, the deicing effect is stable, and the high-voltage transmission line cannot be damaged in the deicing process.

Description

Technical Field

[0001] The present invention relates to the field of power transmission line deicing, and in particular to a multi-power power transmission line deicing device and method based on a worm motor. Background Art

[0002] At present, thermal deicing and mechanical deicing are effective deicing methods commonly used for deicing overhead transmission lines. The thermal deicing method uses various technologies to increase the current density of the transmission line, generate Joule heat, and increase the surface temperature of the transmission line, so that the ice melts and falls off; but during the deicing process, the ice-covered line must be shut down, resulting in large economic losses; in addition, DC thermal deicing also requires a DC converter station, which is expensive. The mechanical deicing method refers to the use of mechanical external force to force the ice to break and fall off. The mechanical deicing methods that can be used for transmission lines are mainly pulley scraping and robot deicing. The pulley scraping method is that the ground operator pulls the pulley to move on the line to bend the transmission line to generate stress and remove the ice, but this method is time-consuming and its application is limited by geographical conditions. It is not suitable for areas with high altitudes and complex terrain. Robotic deicing robots mainly use the deicing device they carry. The deicing methods are divided into striking, impact and milling types, but their working environment is complex and changeable due to the influence of climate, terrain and other conditions, and they need to be repeatedly online and offline, which is cumbersome to operate. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a multi-power transmission line deicing device and method based on a worm motor, which overcomes the shortcomings of existing transmission line deicing technology, such as damage to the transmission line, the need for the deicing machine to be repeatedly online and offline, the bulkiness of the deicing machine and the need for power outages for operation. The device is small and light, can be mounted on the line for a long time and has a good deicing effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A multi-power transmission line deicing device based on a worm motor comprises a shell, the upper end of which is hung on the transmission line through a hanging ear and kept in close contact; a worm mechanism is installed in the shell, the worm mechanism comprises a servo motor, the output end of the servo motor is coaxially connected to a turbine, the turbine is meshed with the worm; the worm is coaxially connected to a half gear; a frame is installed on one side of the half gear, the lower end of the frame is connected to the outer shell through a force storage spring, and the upper end of the frame is connected to a knocking rod; when the half gear is in meshing state with the frame, the frame drives the knocking rod to move up and down and knock the outer shell.

[0005] The hanging ears include a left hanging ear and a right hanging ear, and the left hanging ear and the right hanging ear are fixed by locking pins when installed on the transmission line.

[0006] The multi-power transmission line deicing device based on worm motor is arranged at both ends of the transmission line, with at least two groups arranged on each transmission line and maintaining the same frequency operation.

[0007] A control circuit board is installed on the mounting plate in the shell, and the control circuit board is used to control the start and stop, speed of the servo motor and receive control signals; the control circuit board controls the synchronous operation of the multi-power transmission line deicing device based on the worm motor at both ends of the transmission line.

[0008] The edge of the half gear is provided with a first tooth portion and a first smooth portion along the circumferential direction; the corresponding frame is provided with a second tooth portion and a second smooth portion; the first tooth portion is engaged with or disengaged from the second tooth portion. A camera is installed on the outer side of the lower end of the shell.

[0009] The servo motor is powered by a battery and a high-voltage power supply device in the hanging ear.

[0010] A deicing method for a multi-power transmission line based on a worm motor comprises the following steps: Step 1: After the de-icing device is put online for the first time, the left and right hanging ears are fixed by locking pins so that the upper end of the housing is close to the transmission line. The de-icing device is installed at each end of the transmission line; Step 2: When the deicing device is in working state, the control circuit board receives the remote working signal; the two servo motors rotate synchronously forward at the same time, thereby driving the worm gear to rotate; the worm gear drives the worm to rotate; the half gear coaxial with the worm rotates; When the half gear enters the rack cycle, the half gear drives the frame and the knock rod to move downward, thereby compressing the storage spring; When the half gear enters the rackless cycle, the force storage spring rebounds, driving the knocking rod to knock the outer shell, using the vibration principle to remove most of the ice on the transmission line; at the same time, the camera feeds back the real-time line status to the remote control terminal to monitor the line deicing status; Step 3), when the control circuit board receives the stop working signal, it controls the servo motor to reverse, so that the half gear is in the rack-free cycle, the servo motor stops working, and the de-icing device exits the working state.

[0011] The present invention provides a multi-power transmission line deicing device and method based on a worm motor, which has the following technical effects: 1) Small and light, long-term mounting: This device is driven by a worm motor, combined with a servo motor and a worm gear structure, making the entire deicing device lighter and more portable, and can be stably mounted on the transmission line for long-term work without frequent on and off-line operation. This effectively overcomes the shortcomings of existing mechanical deicing devices, which are bulky and cumbersome to operate, and improves the convenience and efficiency of deicing operations.

[0012] 2) No need to shut down the power supply: Traditional thermal de-icing methods usually need to be carried out when the conductor is powered off, which not only causes power outages, but also brings huge economic losses. The present invention uses mechanical knocking to remove ice through the principle of vibration, and can operate without power outages, ensuring the continuity of power transmission and avoiding the economic and safety problems caused by power outages.

[0013] 3) Stable deicing effect, safe and reliable: The worm motor structure of the present invention is combined with the knocking device, the knocking force is uniform and stable, and the energy is recovered and released through the action of the force storage spring, ensuring that the impact of the knocking process on the transmission line is within a safe range, thereby avoiding damage to the high-voltage transmission line. Compared with the existing mechanical deicing method that easily damages the wire, the present invention provides a safer and more reliable deicing solution.

[0014] 4) Multiple power supply, strong adaptability: This device can be powered by both high-voltage power supply and battery, ensuring the stability of power supply in different working environments and enhancing the adaptability of the device under complex geographical and climatic conditions. This design overcomes the problem that some existing deicing devices are highly dependent on a single power supply mode and have poor applicability.

[0015] 5) Compared with the method of vibrating and de-icing by the eccentric wheel or the worm gear directly driving the worm up and down, the present application combines the turbine worm mechanism with the toothless drive structure, and utilizes the compression spring to drive the knocking device to make the instantaneous force large, so that the instantaneous impact force is large enough to better destroy the ice-covered structure and make it fall off; and the structure is simple and easy to implement.

[0016] 6) By hanging the device at both ends of the same transmission line, since the springs used are strong springs, the devices on both sides vibrate strongly at the same frequency, which can remove most of the ice on the transmission line.

[0017] 7) The high-voltage induction power-taking device is installed inside the ear and uses a current transformer composed of a high-voltage transmission line, an iron core and a coil to obtain energy; after rectification and filtering, the output is: the power-taking power regulation circuit can monitor the output voltage in real time, and dynamically adjust the magnetic flux of the coil through a bidirectional thyristor to achieve voltage stabilization and power regulation. When the current in the transmission line is sufficient to provide normal operation of the load, the charging circuit will charge the battery module until it is fully charged; if the current in the transmission line is low, resulting in insufficient output power, the battery module will automatically supply power to ensure continuous and uninterrupted power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2It is a schematic structural diagram of the worm gear mechanism in the present invention (first perspective).

[0020] Figure 3 It is a structural schematic diagram of the worm gear mechanism in the present invention (second viewing angle).

[0021] Figure 4 It is a schematic diagram of the first state of the half gear movement in the present invention.

[0022] Figure 5 It is a schematic diagram of the second state of the half gear movement in the present invention.

[0023] Figure 6 It is a schematic diagram of the high-voltage power taking device in the present invention.

[0024] Figure 7 It is a schematic diagram of the installation position of the present invention.

[0025] Figure 8 It is a left side view of the present invention mounted on a power transmission line.

[0026] Fig. 9 This is a front view of the present invention mounted on a transmission line.

[0027] Fig.10 It is a schematic diagram of the ear hanging structure of the present invention.

[0028] In the figure: servo motor 1, force storage spring 101, knock rod 102, half gear 103, worm gear 104, worm 105, frame 106, housing 2, battery 3, camera 4, left hanging ear 501, right hanging ear 502, control circuit board 6, power transmission line 7. DETAILED DESCRIPTION

[0029] like Figure 1 As shown, a multi-power transmission line deicing device based on a worm motor includes a housing 2, which is made of a high-strength alloy material and has good weather resistance and can withstand extreme weather conditions such as strong winds, low temperatures and heavy snow. A left hanging ear 501 and a right hanging ear 502 are fixed to the top of the housing 2. The left hanging ear 501 and the right hanging ear 502 can be placed on the transmission line to ensure that the upper end of the housing 2 is close to the transmission line, thereby ensuring the stability of the deicing operation.

[0030] like Figure 2-3As shown, a worm mechanism is installed in the housing 2, and the worm mechanism is used to generate vibration. The worm mechanism includes a servo motor 1, and the servo motor 1 accurately controls its speed and direction through a control circuit board 6. The output end of the servo motor 1 is coaxially connected to a turbine 104, and the turbine 104 is meshed with a worm 105. The worm 105 is coaxial with the half gear 103. The edge of the half gear 103 is provided with a first tooth portion within a certain arc range along the circumferential direction, and the other edge area is a first smooth portion. A frame 106 is installed on one side of the half gear 103, and the frame 106 is provided with a second tooth portion, and the second tooth portion is meshed or disengaged with the teeth of the first tooth portion. The lower end of the frame 106 is connected to a force storage spring 101, and the other end of the force storage spring 101 is connected to the inner bottom surface of the housing 2. The upper end of the frame 106 is connected to a knock rod 102, and the knock rod 102 knocks the upper top surface of the housing 2 when moving up and down.

[0031] The second tooth portion of the frame 106 is divided into two parts, upper and lower, including upper teeth and lower teeth, and a second smooth portion is between the upper teeth and the lower teeth. The tooth thickness of the lower teeth is greater than that of the upper teeth. Since the elastic force released by the spring is particularly large, the thickness of the lower teeth is increased to enhance the rigidity of the lower teeth; and the second smooth portion is used to create a gap between the lower teeth and the upper teeth, which can prevent the gear from being unable to mesh with the second tooth portion due to errors, thereby ensuring the normal operation of the device. The large teeth of the lower teeth and the high-strength spring make the vibration force more sufficient, thereby causing the ice on the line to fall off.

[0032] In addition, a guide rod 107 is fixed at the lower end of the frame 106, and the force storage spring 101 is sleeved on the guide rod 107. The guide rod 107 slides with the through hole at the lower end of the shell 2 or the linear bearing at the through hole, so that guidance can be achieved when the frame 106 moves up and down.

[0033] like Figure 7 As shown, preferably, a multi-power transmission line deicing device based on a worm motor is arranged at both ends of each transmission line, and the hanging ear design enables the device to be firmly suspended on the line without being restricted by the terrain or line structure. It is convenient for rapid deployment and disassembly. This design greatly simplifies the installation process and reduces maintenance costs.

[0034] like Fig. 9 This is a schematic diagram of the hanging ear of the present invention. The hanging ear is divided into two parts, an upper part and an lower part, which are connected and fixed by a fixing pin.

[0035] like Figure 1 As shown, preferably, a control circuit board 6 is installed in the housing 2 to receive remote working control signals and connect with another device of the line to ensure working frequency synchronization; at the same time, the control circuit board 6 is also used to control the start, stop and rotation speed of the servo motor.

[0036] like Figure 1As shown, preferably, the servo motor 1 and the control circuit board 6 are powered by the battery 3. In addition, a high-voltage power supply device is installed inside the hanging ear, which can also provide power for the battery and the servo motor 1 and the control circuit board 6 of the de-icing device.

[0037] The high-voltage induction power device is installed inside the ear, and uses a current transformer composed of a high-voltage transmission line, an iron core, and a coil to obtain energy; after rectification and filtering, the output is: the power adjustment circuit can monitor the output voltage in real time, and dynamically adjust the magnetic flux of the coil through a bidirectional thyristor to achieve voltage stabilization and power regulation. When the current in the transmission line is sufficient to provide normal operation of the load, the charging circuit will charge the battery module until it is fully charged; if the current in the transmission line is low, resulting in insufficient output power, the battery module will automatically supply power to ensure continuous and uninterrupted power supply.

[0038] like Figure 1 As shown, preferably, a camera 4 is installed at the bottom end of the housing 2, and the camera 4 transmits the line status to the remote control terminal in real time through the control circuit board 6.

[0039] A deicing method for a multi-power transmission line based on a worm motor comprises the following steps: Step 1) Installation: During the initial installation, the technicians Figure 5 The hanging ear design shown installs the device firmly at both ends of the power transmission line. The left hanging ear 501 and the right hanging ear 502 are fixed by locking pins to ensure that the upper shell 2 of the device is close to the power transmission line. This installation method does not require additional support structures, is suitable for various complex geographical environments, and ensures long-term stable operation of the device.

[0040] Step 2), de-icing operation starts: When the de-icing device enters the working state, the control circuit board 6 receives the remote working signal and controls the de-icing device to start working.

[0041] First, the control signals of the two deicing devices of the same power transmission line are synchronously connected to control the servo motor 1 to rotate forward, thereby driving the worm gear 104 to rotate, and the worm gear 104 further drives the worm 105 to rotate, and the half gear 103 coaxial with the worm 105 rotates downward.

[0042] Then, when the half gear 103 enters the rack meshing cycle, the downward movement of the half gear 103 drives the frame 106 and the knock rod 102 to move downward, thereby compressing the storage spring 101.

[0043] Finally, when the half gear 103 enters the rackless cycle, the force storage spring 101 rebounds, driving the knocking rod 102 to knock the upper top plate of the housing 2, and the ice layer on the transmission line is removed by the vibration principle. At the same time, the camera 4 transmits the working status of the line to the remote control terminal in real time to monitor the deicing process.

[0044] Step 3), exit the working state. When the control circuit board 6 receives the stop working signal, it controls the servo motor 1 to reverse, ensuring that the half gear 103 is in a rack-free cycle state. Then the servo motor 1 stops working, and the device exits the working state.

[0045] A multi-power transmission line deicing method based on a worm motor removes ice by tapping a contact surface when an ice layer has not yet been completely formed. The device is light, uses a multi-power source to work, and has a stable deicing effect. No damage is caused to the high-voltage transmission line during the deicing process.

Claims

1. A deicing device for a multi-power transmission line based on a worm motor, characterized in that: The invention comprises a housing (2), the upper end of which is hung on a transmission line through a hanging ear and kept in close contact with the transmission line; a worm mechanism is installed in the housing (2), the worm mechanism comprises a servo motor (1), the output end of the servo motor (1) is coaxially connected to a turbine (104), the turbine (104) is meshed with a worm (105); the worm (105) is coaxially connected to a half gear (103); a frame (106) is installed on one side of the half gear (103), the lower end of the frame (106) is connected to the housing (2) through a force storage spring (101), and the upper end of the frame (106) is connected to a knocking rod (102); when the teeth on the half gear (103) and the frame (106) are meshed, the frame (106) drives the knocking rod (102) to move up and down and knock the housing (2).

2. A multi-power transmission line deicing device based on a worm motor according to claim 1, characterized in that: The hanging ears comprise a left hanging ear (501) and a right hanging ear (502); when the left hanging ear (501) and the right hanging ear (502) are installed on the transmission line (7), they are fixed by a locking pin.

3. A multi-power transmission line deicing device based on a worm motor according to claim 1, characterized in that: The multi-power transmission line deicing device based on the worm motor is arranged at both ends of the transmission line (7), and at least two groups are arranged on each transmission line (7) and operate at the same frequency.

4. A multi-power transmission line deicing device based on a worm motor according to claim 3, characterized in that: A control circuit board (6) is mounted on a mounting plate in the housing (2), and the control circuit board (6) is used to control the start and stop and speed of the servo motor (1) and receive control signals; the control circuit board (6) controls the synchronous operation of the multi-power transmission line deicing devices based on worm motors at both ends of the transmission line (7).

5. The deicing device for multiple power transmission lines based on a worm motor according to claim 1, characterized in that: The edge of the half gear (103) is provided with a first tooth portion and a first smooth portion along the circumferential direction; the corresponding frame (106) is provided with a second tooth portion and a second smooth portion; the first tooth portion is meshed with or disengaged from the second tooth portion.

6. The deicing device for multiple power transmission lines based on a worm motor according to claim 1, characterized in that: A camera (4) is installed on the outer side of the lower end of the shell (2).

7. The deicing device for multiple power transmission lines based on a worm motor according to claim 1, characterized in that: The servo motor (1) is powered by a storage battery (3) and a high-voltage power supply device in the hanging ear.

8. A method for deicing a multi-power transmission line deicing device based on a worm motor according to claims 1-7, comprising the following steps: Step 1: After the deicing device is put online for the first time, the left hanging ear (501) and the right hanging ear (502) are fixed by means of a locking pin, so that the upper end of the housing (2) is closely attached to the transmission line (7), and the deicing device is installed at each end of the transmission line (7); Step 2: When the deicing device is in working state, the control circuit board (6) receives a remote working signal; the two servo motors (1) rotate forward synchronously at the same time, thereby driving the worm wheel (104) to rotate; the worm wheel (104) drives the worm (105) to rotate; the half gear (103) coaxial with the worm (105) rotates; When the half gear (103) enters the rack cycle, the half gear (103) drives the frame (106) and the knock rod (102) to move downward, thereby compressing the force storage spring (101); When the half gear (103) enters a rackless cycle, the force storage spring (101) rebounds, driving the knocking rod (102) to knock the housing (2), thereby removing most of the ice on the transmission line (7) by utilizing the vibration principle; at the same time, the camera (4) feeds back the real-time line status to the remote control terminal to monitor the line deicing status; Step 3), when the control circuit board (6) receives the stop working signal, it controls the servo motor (1) to reverse, so that the half gear (103) is in a rack-free period, and then the servo motor (1) stops working, and the deicing device exits the working state.

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