Wire lifting device

Abstract

The invention discloses a wire lifting device, which relates to the technical field of power system maintenance and comprises an aviation cast aluminum clamp, a cast aluminum gear box and a hand-cranking disc. Wherein the aviation cast aluminum clamp is fixed on an iron tower cross arm, a threaded screw rod is arranged in the cast aluminum gear box, the hand-cranking disc controls the threaded screw rod to ascend or descend through manual rotation so as to achieve ascending and descending of a wire, and according to the wire lifting device, through the hand-cranking design of the hand-cranking disc and the mechanical reinforcement principle, the labor cost is remarkably reduced, and the labor intensity is lowered. The working efficiency is improved; the hand-cranking disc and the operating handle are made of high-voltage-resistant insulating plastic, so that safety is ensured; the device is made of an aviation cast aluminum material, is lightweight in design and is convenient to carry and mount; a quick locking mechanism ensures stable connection; the device can adapt to wires of different specifications, especially double-split wires, and the operation flexibility is improved; the surface of the threaded screw is hardened, so that the wear resistance is improved; an intelligent interface is reserved, remote control and data acquisition are supported, the operation efficiency is improved, and the power grid operation risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of power system maintenance, and in particular to a conductor lifting device. Background Art

[0002] With the development of the power system, the construction and maintenance of high-voltage transmission lines have become increasingly important. Especially on transmission lines with voltage levels of 220kV and above, live working has become a common maintenance method. However, the traditional live working method has many problems when replacing insulators, especially when dealing with double-split conductors. In order to improve work efficiency and safety, Hainan Power Grid Co., Ltd. launched the "Conductor Lifting Device" research and development project, aiming to develop a new type of live working tool to replace the traditional pulley block tool.

[0003] When replacing insulators on traditional live line towers, pulley block tools are usually used. This method has the following main problems: it is laborious and time-consuming. The pulley block requires the coordinated operation of multiple people, which is labor-intensive and time-consuming, especially when the conductor is heavy, requiring more operators; it has safety hazards, is complicated to operate, and is prone to misoperation, resulting in loss of control of the conductor or injury to the operator; it is inefficient, the lifting speed of the pulley block is slow, affecting the overall work efficiency, and it is difficult to complete the task quickly in an emergency; it has poor adaptability. Modern transmission lines use double-split conductors with larger cross-sections and heavier weights, and traditional pulley blocks can hardly work effectively. Summary of the invention

[0004] In view of the fact that the above-mentioned existing traditional pulley block tools are laborious and time-consuming, complicated to operate, have great safety hazards, slow lifting speed, poor adaptability, and cannot effectively handle the problem of modern heavy double-split conductors, a conductor lifting device is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising an aviation cast aluminum fixture, a cast aluminum gear box and a hand-cranked disc;

[0006] The aviation cast aluminum fixture is fixed on the cross arm of the iron tower, a threaded screw is arranged in the cast aluminum gear box, and the hand-cranked disc controls the rise or fall of the threaded screw through human rotation to realize the lifting and lowering of the conductor.

[0007] As a preferred solution of the conductor lifting device described in the present invention, wherein: the aviation cast aluminum fixture is made of high-strength aluminum alloy material to ensure structural stability under high load;

[0008] Among them, the tensile strength of aluminum alloy material is not less than 345MPa.

[0009] As a preferred solution of the wire lifting device described in the present invention, the threaded screw of the cast aluminum gearbox has a diameter of φ20 mm and a length of 600 mm to meet the wire lifting requirements of different heights;

[0010] Wherein, the surface of the threaded screw is hardened to improve wear resistance.

[0011] As a preferred solution of the conductor lifting device described in the present invention, the gears of the cast aluminum gear box are made of high-strength steel, and the surface is heat-treated to enhance durability.

[0012] As a preferred solution of the conductor lifting device described in the present invention, the diameter of the hand-cranked disc is φ200 mm, which is convenient for the operator to rotate it manually.

[0013] As a preferred solution of the conductor lifting device described in the present invention, a bearing is provided at the center of the hand-cranked disc to reduce friction during rotation.

[0014] As a preferred solution of the wire lifting device of the present invention, wherein: an operating handle is installed on the hand-cranked disc, and both the hand-cranked disc and the operating handle are made of insulating materials to prevent the current from passing through the human body;

[0015] The insulating material is insulating plastic that is resistant to high voltage.

[0016] As a preferred solution of the conductor lifting device of the present invention, the hand-cranked disc is designed with an anti-slip texture to enhance stability and safety during operation;

[0017] Among them, the anti-slip texture is horizontally staggered grooves, and the depth of the grooves is not less than 2mm.

[0018] As a preferred solution of the conductor lifting device described in the present invention, the connection between the aviation cast aluminum fixture and the tower cross arm adopts a quick locking mechanism to achieve quick installation and disassembly;

[0019] The quick locking mechanism includes at least two locking points to ensure the stability of the connection.

[0020] The beneficial effects of the present invention are as follows: the conductor lifting device of the present invention significantly reduces labor costs and improves work efficiency through the hand-cranked design and mechanical force amplification principle; the hand-cranked disc and the operating handle are made of high-voltage resistant insulating plastic to ensure safety; the device is made of aviation cast aluminum material, with a lightweight design, which is easy to carry and install; the quick locking mechanism ensures a stable connection; it can adapt to conductors of different specifications, especially double-split conductors, to improve work flexibility; the surface of the threaded screw is hardened to improve wear resistance; an intelligent interface is reserved to support remote control and data acquisition, improve work efficiency, and reduce power grid operation risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the conductor lifting device in the present invention.

[0023] Figure 2 It is a schematic diagram of the planar structure of the conductor lifting device in the present invention.

[0024] Reference numerals: 100, aviation cast aluminum fixture; 200, cast aluminum gear box; 300, hand-cranked disc; 201, threaded screw; 301, operating handle. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0029] Example 1, reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a wire lifting device, including an aviation cast aluminum fixture 100, a cast aluminum gear box 200 and a hand-cranked disc 300; wherein the aviation cast aluminum fixture 100 is fixed on the cross arm of the iron tower, a threaded screw 201 is arranged in the cast aluminum gear box 200, and the hand-cranked disc 300 controls the rise or rise of the threaded screw 201 by human rotation to achieve the lifting of the wire. The aviation cast aluminum fixture 100 is made of high-strength aluminum alloy material to ensure structural stability under high load; wherein the tensile strength of the aluminum alloy material is not less than 345MPa.

[0030] Among them, the aviation cast aluminum fixture 100 is made of high-strength aluminum alloy material with a tensile strength of not less than 345MPa, ensuring structural stability under high load; the aviation cast aluminum fixture 100 is usually fixed on the cross arm of the iron tower to provide a stable support point to ensure the overall stability of the device; the connection between the aviation cast aluminum fixture 100 and the cross arm of the iron tower adopts a quick locking mechanism, including at least two locking points, to ensure the stability of the connection and quick installation; the cast aluminum gearbox 200 is made of cast aluminum material, which has good mechanical strength and corrosion resistance, and is internally provided with a threaded screw 201 with a diameter of φ20mm and a length of 600mm to meet the requirements of wire lifting at different heights; the surface of the threaded screw 201 is hardened to improve wear resistance and service life; Efficient lifting or lowering action is achieved through gear transmission, ensuring the durability of the device and normal operation in harsh environments; the gears are made of high-strength steel and the surface is heat-treated to enhance durability; the diameter of the hand-cranked disc 300 is φ200mm, which is convenient for the operator to rotate manually; a bearing is provided in the center of the hand-cranked disc 300 to reduce friction during rotation and make the operation smoother; an operating handle 301 is installed on the hand-cranked disc 300, and the operating handle 301 and the hand-cranked disc 300 are both made of high-voltage resistant insulating plastic to prevent electric current from passing through the human body and ensure the safety of the operator; the hand-cranked disc 300 is designed with an anti-slip texture, which is a horizontally staggered groove with a depth of not less than 2mm, which enhances stability and safety during operation.

[0031] It should be noted that the aviation cast aluminum fixture 100 is one of the key components in the conductor lifting device, and its main functions are as follows: First, the aviation cast aluminum fixture 100 is fixed on the cross arm of the iron tower to provide a stable support point for the entire conductor lifting device, ensuring that the device will not move or fall off during operation. The connection point design between the aviation cast aluminum fixture 100 and the cross arm of the iron tower ensures the stability of the device and prevents shaking or deviation when lifting the conductor; second, the aviation cast aluminum fixture 100 is made of high-strength aluminum alloy material with a tensile strength of not less than 345MPa, which ensures structural stability under high load. The aluminum alloy material has good corrosion resistance and can be used for a long time in harsh outdoor environments, thereby extending the service life of the device; third, the connection between the aviation cast aluminum fixture 100 and the cross arm of the iron tower adopts a quick-connect connection. The quick locking mechanism includes at least two locking points to ensure the stability of the connection and quick installation. The quick locking mechanism allows operators to quickly complete the installation and disassembly of the device, improve work efficiency, and meet the needs of rapid on-site deployment; fourthly, the contact surface of the aviation cast aluminum clamp 100 is designed with anti-slip texture to ensure good grip and prevent sliding even in slippery or severe weather conditions. The design of multiple locking points ensures a firm connection between the clamp and the tower crossarm, prevents accidental loosening or falling off when lifting the conductor, and ensures the safety of the operators; fifthly, the clamp design can adapt to tower crossarms of different specifications to ensure effective use in different types of transmission lines. The position of the clamp can be flexibly adjusted to meet the needs of operations at different heights and angles, thereby enhancing the versatility and adaptability of the device.

[0032] In summary, through the above functions, the aviation cast aluminum fixture 100 plays a key supporting and fixing role in the conductor lifting device, ensuring the efficient, safe and reliable operation of the device during live operations.

[0033] Example 2, reference Figure 1 and Figure 2 , which is the second embodiment of the present invention, is based on the previous embodiment, except that: the threaded screw 201 of the cast aluminum gearbox 200 has a diameter of φ20mm and a length of 600mm to meet the requirements of wire lifting at different heights; wherein, the surface of the threaded screw 201 is hardened to improve wear resistance. The cast aluminum gearbox 200 achieves efficient lifting or lowering action through gear transmission, ensuring the durability of the device and normal operation in harsh environments; the gears of the cast aluminum gearbox 200 are made of high-strength steel, and the surface is heat-treated to enhance durability.

[0034] Among them, the cast aluminum gearbox 200 is made of cast aluminum material, which has good mechanical strength and corrosion resistance and is suitable for long-term use in harsh outdoor environments; efficient lifting or lowering action is achieved through gear transmission to ensure the durability of the device and normal operation in harsh environments. The gears are made of high-strength steel and the surface is heat-treated to enhance durability and ensure stability and reliability under high loads; the diameter of the threaded screw 201 is φ20mm to ensure sufficient strength and stability when lifting the conductor. The length of the threaded screw 201 is 600mm, which can adapt to the lifting requirements of conductors at different heights and ensure effective operation under various operating conditions. The surface of the threaded screw 201 is hardened to improve wear resistance and service life and reduce wear during frequent use.

[0035] It should be noted that the cast aluminum gearbox 200 achieves efficient lifting or lowering action through gear transmission; the gear transmission has the characteristics of high efficiency and low friction, ensuring that the operation can be completed smoothly and quickly when lifting the wire; the gear transmission ratio in the gearbox is optimized to ensure that sufficient lifting force can be generated when the hand-cranked disc 300 is rotated manually, reducing the labor intensity of the operator; the gearbox is made of cast aluminum material, which has good mechanical strength and corrosion resistance, ensuring long-term use in harsh outdoor environments; the gears are made of high-strength steel, and the surface is heat-treated to enhance its wear resistance and fatigue resistance, ensuring stability and reliability under high loads, and the surface of the threaded screw 201 is hardened to improve its wear resistance and corrosion resistance and extend its service life; the length of the threaded screw 201 is 600mm, which can adapt to the lifting needs of wires at different heights, ensuring effective operation under various operating conditions; the length and diameter design of the threaded screw 201 enables the device to be flexibly adjusted to adapt to the operating needs of different heights and angles, enhancing the versatility and adaptability of the device.

[0036] In this embodiment, the cast aluminum gearbox 200 is designed with a low-friction transmission system to reduce energy loss and improve transmission efficiency. A lubrication system is provided inside the gearbox to ensure that the gears and threaded screw 201 remain in a good lubrication state during long-term use to reduce wear. The cast aluminum gearbox 200 adopts a compact design with a small size and light weight, which is easy to install and carry. The use of cast aluminum material ensures the sturdy structure of the cast aluminum gearbox 200, which can remain stable under high loads and prevent deformation and damage.

[0037] In summary, through the above detailed description, the structure, material, function and role of the cast aluminum gearbox 200 and its threaded screw 201 are clarified, and the cast aluminum gearbox 200 plays a key transmission and protection role in the conductor lifting device, ensuring the efficient, safe and reliable operation of the device during live operations.

[0038] The rest of the structure is the same as that of Example 1.

[0039] Example 3, reference Figure 1 and Figure 2 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the diameter of the hand-cranked disc 300 is φ200mm, which is convenient for the operator to rotate manually; a bearing is provided at the center of the hand-cranked disc 300 to reduce the friction during rotation; an operating handle 301 is installed on the hand-cranked disc 300, and the hand-cranked disc 300 and the operating handle 301 are both made of insulating materials to prevent electric current from passing through the human body; wherein the insulating material is insulating plastic resistant to high voltage; the hand-cranked disc 300 is designed with an anti-slip texture to enhance stability and safety during operation; wherein the anti-slip texture is a transversely staggered groove, and the depth of the groove is not less than 2mm.

[0040] It should be noted that the diameter of the hand-cranked disc 300 is φ200mm, which is of moderate size and is convenient for the operator to rotate manually, reducing the difficulty of operation. An operating handle 301 is installed on the hand-cranked disc 300. The design of the operating handle 301 conforms to ergonomics, making the operation more comfortable and convenient. A bearing is provided in the center of the hand-cranked disc 300 to reduce the friction during rotation, making the operation smoother and improving work efficiency. The hand-cranked disc 300 and the operating handle 301 are both made of high-voltage resistant insulating plastic to prevent current from passing through the human body and ensure the safety of the operator. The insulating material has good high-voltage resistance and can effectively isolate the current in a high-voltage environment to prevent electric shock accidents. The hand-cranked disc 300 is designed with an anti-slip texture. The anti-slip texture is a horizontally staggered groove with a depth of not less than 2mm, which increases friction, prevents hand slippage, and ensures stability and safety during operation. The depth of the groove is not less than 2mm, ensuring that it can still provide a good anti-slip effect under wet or bad weather conditions.

[0041] In this embodiment, the hand-cranked disc 300 is a key operating component in the wire lifting device, which is used to control the rise or fall of the threaded screw 201, thereby achieving the lifting or lowering of the wire; the following is a detailed method of using the hand-cranked disc 300: fix the aviation cast aluminum fixture 100 on the cross arm of the iron tower to ensure that the fixture is firm and reliable, then fix the wire to the fixture of the device through the connecting wire to ensure that the connection is firm, check whether the hand-cranked disc 300, the operating handle 301, the center bearing and the anti-slip texture are intact, confirm whether the connection between the cast aluminum gear box 200 and the threaded screw 201 is tight and there is no looseness, and use a Hold the operating handle 301 on the hand-cranked disc 300, ensure that you hold it firmly, rotate the hand-cranked disc 300 clockwise to make the threaded screw 201 rise, thereby lifting the conductor, apply force evenly during rotation, avoid sudden increase or decrease of force, ensure smooth operation, rotate the hand-cranked disc 300 counterclockwise to make the threaded screw 201 fall, thereby lowering the conductor, similarly, apply force evenly during rotation to ensure smooth operation, in the process of lifting or lowering the conductor, pay attention to observe the movement of the conductor, ensure that the conductor is lifted or lowered smoothly without jamming, if you encounter resistance or abnormal conditions, stop the operation immediately and check the status of the device and the conductor.

[0042] In summary, through the above method of use, the operator can safely and efficiently use the hand-cranked disc 300 to control the lifting or lowering of the wire, ensuring that the use of the hand-cranked disc 300 can improve the working efficiency, reduce the labor intensity, and ensure the safety of the operator during live working.

[0043] The rest of the structure is the same as that of Example 2.

[0044] Example 4, reference Figure 1 and Figure 2 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that the connection between the aviation cast aluminum fixture 100 and the tower crossarm adopts a quick locking mechanism to achieve quick installation and disassembly; wherein the quick locking mechanism includes at least two locking points to ensure the stability of the connection.

[0045] It should be noted that the quick locking mechanism is a key component to ensure the stability of the connection between the aviation cast aluminum fixture 100 and the tower crossarm. The quick locking mechanism includes at least two locking points, which are usually designed to be symmetrically distributed to ensure uniform force on the connection. The distribution of multiple locking points makes the connection force between the fixture and the tower crossarm evenly distributed, avoiding local stress concentration and improving overall stability. Multiple locking points provide double insurance. Even if one of the locking points fails, the other locking points can still maintain the stability of the connection. Each locking point is equipped with a special locking mechanism to ensure quick and convenient installation and removal. The locking mechanism is designed with a self-locking function. Once locked in place, it will not loosen due to external vibration or impact, and the operator can It can be quickly locked and unlocked through manual operation to ensure the reliability of the connection and the convenience of operation. The locking mechanism is designed with an anti-loosening device inside to prevent loosening under high load or harsh environment. The contact surface of the locking point is designed with anti-slip grooves to ensure good grip and prevent sliding in wet or bad weather conditions. The anti-slip grooves are made of wear-resistant materials to ensure their effectiveness after long-term use. The depth of the anti-slip grooves is reasonably designed to ensure sufficient friction under various conditions. The locking point is designed with a visual indicator to ensure that the operator can intuitively judge whether the lock is in place. The locking mechanism is designed with tactile feedback. When the lock is in place, the operator can feel an obvious tactile change to ensure the reliability of the lock.

[0046] In summary, through these designs, the quick locking mechanism not only realizes fast installation and disassembly, but also ensures the stability and reliability of the connection, providing important guarantees for the safe and efficient operation of the conductor lifting device.

[0047] The rest of the structure is the same as that of Example 3.

[0048] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0049] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0050] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A conductor lifting device, characterized in that: It comprises an aviation cast aluminum fixture (100), a cast aluminum gear box (200) and a hand-cranked disc (300); The aviation cast aluminum fixture (100) is fixed on the cross arm of the iron tower, a threaded screw (201) is arranged in the cast aluminum gear box (200), and the hand-cranked disc (300) controls the rise or fall of the threaded screw (201) through human rotation to achieve the rise and fall of the conductor.

2. A conductor lifting device according to claim 1, characterized in that: The aviation cast aluminum fixture (100) is made of high-strength aluminum alloy material to ensure structural stability under high load; Among them, the tensile strength of aluminum alloy material is not less than 345MPa.

3. A wire lifting device according to claim 1, characterized in that: The diameter of the threaded screw (201) of the cast aluminum gearbox (200) is The length is 600mm to meet the needs of wire lifting at different heights; Wherein, the surface of the threaded screw (201) is hardened to improve wear resistance.

4. A conductor lifting device according to claim 1 or 2, characterized in that: The cast aluminum gear box (200) realizes efficient lifting or lowering action through gear transmission, ensuring the durability of the device and normal operation in harsh environments.

5. A wire lifting device as claimed in claim 4, characterized in that: The gears of the cast aluminum gear box (200) are made of high-strength steel, and the surface is heat-treated to enhance durability.

6. A conductor lifting device according to claim 1 or 2, characterized in that: The diameter of the hand-cranked disc (300) is It is convenient for operators to perform manual rotation.

7. A conductor lifting device according to claim 1 or 2, characterized in that: A bearing is provided at the center of the hand-cranked disc (300) to reduce friction during rotation.

8. A conductor lifting device according to claim 1 or 2, characterized in that: An operating handle (301) is installed on the hand-cranked disc (300), and both the hand-cranked disc (300) and the operating handle (301) are made of insulating materials to prevent electric current from passing through the human body; The insulating material is insulating plastic that is resistant to high voltage.

9. A conductor lifting device according to claim 1 or 2, characterized in that: The hand-cranked disc (300) is designed with an anti-slip texture to enhance stability and safety during operation; Among them, the anti-slip texture is horizontally staggered grooves, and the depth of the grooves is not less than 2mm.

10. A conductor lifting device according to claim 1 or 2, characterized in that: The connection between the aviation cast aluminum fixture (100) and the tower cross arm adopts a quick locking mechanism to achieve quick installation and disassembly; The quick locking mechanism includes at least two locking points to ensure the stability of the connection.

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