Novel high-strength nano aluminum alloy fitting
By adopting the clamping mechanism and synchronization mechanism of a new high-strength nano-aluminum alloy tool in the stranded wire tensioning equipment, the problem that the stranded wire is prone to form a local bending angle during the tension adjustment process is solved, uniform clamping and synchronous adjustment of the stranded wire is achieved, and the mechanical strength of the stranded wire and the flexibility of the device are improved.
Patent Information
- Application Number
- CN202510461953.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2025-06-20
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When existing stranded tensioning equipment performs tension adjustment, it is easy to form a large bending angle in the local area, resulting in uneven stress between the metal wires inside the stranded wire, causing stress concentration, reducing the mechanical strength of the stranded wire and increasing resistance loss.
New high-strength nano-aluminum alloy tools are used, including clamping mechanisms and synchronization mechanisms. The clamping mechanism achieves uniform clamping of the stranded wire through the coordination of multiple sets of interlaced bidirectional blocks and shrinking blocks to avoid local stress concentration; the synchronous mechanism achieves synchronous movement of the upper and lower ends of the contracting blocks through the coordinated work of the bidirectional rod, the synchronization groove and the synchronization block, ensuring the uniform distribution of the clamping force.
The stability and reliability of stranded wire clamping are significantly improved, local stress concentration and excessive bending are avoided, which has a positive impact on the mechanical strength and service life of the stranded wire, and at the same time improves the flexibility and adaptability of the device.
Smart Images
Figure CN120184828A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of fittings, and more specifically, it relates to a new type of high-strength nano-aluminum alloy fitting. Background Art
[0002] In modern power transmission systems, DC and AC converter stations, as core facilities in the power grid, their operating efficiency and reliability largely depend on the installation quality of stranded wires. As an important carrier for power transmission, the stranded wire needs to maintain an appropriate tension state to ensure efficient power transmission. In practical applications, due to the influence of temperature changes, climatic conditions, and geographical environment, the stranded wire will experience varying degrees of relaxation or deformation. Therefore, it is necessary to adjust the tension through a tensioning device to ensure that the stranded wire remains in the best working state. This adjustment process not only relates to the efficiency of power transmission but also directly affects the safety and stability of the entire power transmission system.
[0003] However, there are obvious technical defects in the current stranded wire tensioning devices on the market when performing tension adjustment. When the device stretches and tightens the stranded wire, large bending angles often form in some local areas. This kind of bending will affect the physical structure of the stranded wire. Excessive bending angles will cause uneven stress among the metal wires inside the stranded wire, resulting in stress concentration, which will not only reduce the mechanical strength of the stranded wire but also significantly increase the resistance loss. This loss is not only manifested in the reduction of power transmission efficiency but also accelerates the aging and deterioration process of the stranded wire, shortens its service life, and increases the maintenance and replacement costs. Summary of the Invention
[0004] (I) Technical Problems to be Solved Aiming at the problems existing in the prior art, the present invention provides a new type of high-strength nano-aluminum alloy fitting to solve the technical problems mentioned in the background art.
[0005] (II) Technical Solutions To achieve the above object, the present invention provides the following technical solution: A new type of high-strength nano-aluminum alloy fitting, including a stranded wire connected to a converter station; It further includes a clamping mechanism. The clamping mechanism includes a clamping sleeve. A plurality of bidirectional grooves are equidistantly arranged on the side wall of the clamping sleeve, and a plurality of bidirectional blocks are respectively slidably connected in the plurality of bidirectional grooves. The plurality of bidirectional blocks are respectively arranged at intervals and staggered, and a contraction block is respectively installed on each bidirectional block. An alternately spaced inclined surface is formed on each contraction block, and one side of the plurality of inclined surfaces is attached to the side wall of the stranded wire. A threaded block is installed on one side of each bidirectional block away from the inclined surface, and two bidirectional rods are symmetrically rotatably arranged in the clamping sleeve. The threaded blocks at the upper and lower ends are respectively reversely threadedly connected to the two bidirectional rods; and The synchronization mechanism includes a synchronization groove and a telescopic hole opened on the two bidirectional rods. Push rods are slidably connected in the two telescopic holes. A synchronization block is installed in the middle position of the push rod. When the two bidirectional rods are fitted together, the synchronization block is stuck in the two synchronization grooves.
[0006] Preferably, the clamping mechanism also includes a guide bar installed on the threaded block, and corresponding limit grooves are respectively provided on both sides of the clamping sleeve, and the guide bar is slidably connected in the limit groove. This design ensures that the threaded block always remains on a predetermined track during movement through the precise matching of the guide bar and the limit groove, effectively preventing the threaded block from deflecting and shaking, improving the stability and accuracy of the clamping process, and also reducing wear between components.
[0007] Preferably, two fixing frames are symmetrically installed on both sides of the clamping sleeve, and rollers are rotatably installed on the upper and lower ends of the two fixing frames, and the rollers on both sides are pressed on the side walls of the stranded wire. This design provides an ideal support angle and contact method for the stranded wire through the combination of the fixing frame and the roller. The rotating design of the roller reduces the friction between the stranded wire and the supporting component, and at the same time ensures that the stranded wire maintains an appropriate bending angle during the force application process, effectively preventing local stress concentration and excessive bending.
[0008] Preferably, the two sides of the clamping sleeve are respectively threadedly connected to the limiting sleeves, and the two limiting sleeves are respectively fitted on the two bidirectional rods, and the two sides of the clamping sleeve are respectively coaxially installed with external sleeves, and the limiting sleeves are pressed on the external sleeves. This design achieves the limitation and protection of the position of the bidirectional rod through the coordinated cooperation of the limiting sleeves, the external sleeves and the bidirectional rod, ensuring the stability of the bidirectional rod during rotation. At the same time, the setting of the external sleeves provides good support and protection, reducing wear between components.
[0009] Preferably, the synchronization mechanism also includes an internal sleeve and a sleeve installed on the two bidirectional rods, two sleeves are installed, and a fixed rod is installed between the two sleeves, and a push rod is installed in one of the sleeves. When it is necessary to release the connection between the two synchronization grooves and the synchronization block, the push rod is inserted into the telescopic hole, and the synchronization block is pushed by the push rod to release the connection with the synchronization groove. This design realizes flexible control of the synchronization mechanism through the cooperation of the internal sleeve, the sleeve and the push rod. The operator can easily switch between the synchronization and independent adjustment modes as needed, thereby improving the adaptability and operational convenience of the device.
[0010] Preferably, return springs are installed on both sides of the synchronization block, and the return springs at both ends respectively abut against the synchronization grooves on both sides. This design ensures that the synchronization block can automatically return to the predetermined position when needed through the elastic action of the return springs, providing a reliable reset function.
[0011] Preferably, thrust grooves are respectively formed on one side of the two bidirectional rods close to each other, and thrust bearings are connected in the thrust grooves in a limited manner. This design effectively reduces the friction between the bidirectional rods through the cooperation of the thrust grooves and the thrust bearings, improves the smoothness of rotation, and also enhances the durability of the device.
[0012] (III) Beneficial effects Compared with the prior art, the present invention provides a new type of high-strength nano-aluminum alloy fitting, which has the following beneficial effects: First of all, through the cooperation of the clamping sleeve and multiple groups of mutually staggered bidirectional blocks, the device realizes the uniform clamping of the stranded wire. In particular, the spaced and staggered inclined surfaces designed on the shrinkage blocks can act on the surface of the stranded wire simultaneously at multiple points, significantly improving the stability and reliability of clamping. This design of multi-point force application not only avoids the problem of local stress concentration easily caused by traditional clamps but also effectively prevents the stranded wire from deforming or being damaged during use. Secondly, the device has a unique design of the opening angle control mechanism. By symmetrically arranging the fixed frames and rollers on both sides of the clamping sleeve, a support angle is provided for the stranded wire. This design ensures that the stranded wire maintains an appropriate bending angle during the force application process, effectively avoiding damage to the stranded wire caused by excessive bending; The device also adopts a synchronous adjustment system. Through the coordinated operation of the bidirectional rods, synchronous grooves, and synchronous blocks, the synchronous movement of the shrinkage blocks at the upper and lower ends is realized. This synchronous mechanism ensures the uniform distribution of the clamping force. In particular, through the cooperation of the push rod and the return spring, the system can achieve single-sided adjustment when needed, improving the flexibility and adaptability of the device; Finally, the overall structure design of the device fully considers the actual application requirements. Through reasonable mechanical design and mechanical cooperation, it not only improves the reliability of clamping but also ensures the convenience of adjustment. This design enables the device to adapt to different specifications of stranded wires and various working environments, providing a reliable guarantee for the safe operation of the power transmission system. Generally speaking, this new type of high-strength nano-aluminum alloy fitting effectively improves the reliability of stranded wire clamping and the convenience of operation, providing strong support for the safe and stable operation of the power transmission system. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of a new type of high-strength nano-aluminum alloy fitting in the present invention; Figure 2 In the present invention Figure 1 Schematic diagram of the structure without a stranded wire; Figure 3 It is a schematic cross-sectional structure of the shrinkage block and the clamping sleeve in the present invention; Figure 4 It is a schematic diagram of the structure of the clamping sleeve in the present invention; Figure 5 Schematic cross-sectional structure diagram of the bidirectional rod and the limit sleeve in the present invention; Figure 6 Exploded structure diagram of the bidirectional rod and the sleeve in the present invention; Figure 7 Exploded cross-sectional structure diagram of the bidirectional rod in the present invention; Figure 8 Schematic structure diagram of the bidirectional rod in the present invention; Figure 9 Schematic structure diagram of the synchronization block in the present invention.
[0014] In the figure: 11, stranded wire; 21, clamping sleeve; 22, bidirectional groove; 23, bidirectional block; 24, shrinkage block; 25, inclined surface; 26, threaded block; 27, bidirectional rod; 28, guiding strip; 29, limit groove; 31, synchronization groove; 32, telescopic hole; 33, push rod; 34, synchronization block; 35, inner sleeve; 36, sleeve; 37, fixed rod; 38, ejector rod; 39, return spring; 210, fixing frame; 211, roller; 212, limit sleeve; 213, outer sleeve; 310, thrust groove; 311, thrust bearing. Detailed implementation manners
[0015] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.
[0016] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.
[0017] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inner, outer" refer to the inner and outer relative to the contours of the respective components, but the above orientation terms are not used to limit the present invention.
[0018] Please refer to Figures 1 to 9, A new type of high-strength nano-aluminum alloy fitting, which includes a stranded wire 11 connected to a converter station, and also includes a clamping mechanism. The clamping mechanism includes a clamping sleeve 21. A plurality of bidirectional grooves 22 are equidistantly arranged on the side wall of the clamping sleeve 21, and a plurality of bidirectional blocks 23 are respectively slidably connected in the plurality of bidirectional grooves 22. The plurality of bidirectional blocks 23 are respectively arranged at intervals and staggered. And a shrinkage block 24 is respectively installed on each bidirectional block 23. An alternately spaced inclined surface 25 is formed on each shrinkage block 24, and one side of the plurality of inclined surfaces 25 is attached to the side wall of the stranded wire 11. A threaded block 26 is installed on one side of each bidirectional block 23 away from the inclined surface 25. And two bidirectional rods 27 are symmetrically rotatably arranged in the clamping sleeve 21. The threaded blocks 26 at the upper and lower ends are respectively reversely threadedly connected to the two bidirectional rods 27. The clamping mechanism further includes a guiding strip 28 installed on the threaded block 26, and limiting grooves 29 corresponding thereto are respectively opened on both sides of the clamping sleeve 21. The guiding strip 28 is slidably connected in the limiting groove 29. Two fixing frames 210 are symmetrically installed on both sides of the clamping sleeve 21. Roller wheels 211 are respectively rotatably installed at the upper and lower ends of the two fixing frames 210. The roller wheels 211 on both sides press on the side wall of the stranded wire 11. Limiting sleeves 212 are respectively threadedly connected to both sides of the clamping sleeve 21, and the two limiting sleeves 212 are respectively attached to the two bidirectional rods 27. And outer sleeves 213 are coaxially installed on both sides of the clamping sleeve 21, and the limiting sleeves 212 press on the outer sleeves 213.
[0019] Please refer to Figure 1 , When clamping and fixing the stranded wire 11, first pass the stranded wire 11 through the roller wheels 211 on both sides respectively, and then make the stranded wire 11 fit on the inclined surfaces 25 of the plurality of shrinkage blocks 24. Since the plurality of inclined surfaces 25 are arranged alternately up and down, the stranded wire 11 will be stuck on the plurality of inclined surfaces 25, and a relatively large opening angle is provided for the stranded wire 11 by the roller wheels 211 at both ends. When the stranded wire 11 is tightened and fixed, the bending of the stranded wire 11 will be reduced, improving the safety of use. When a greater degree of tightening is required, only a few more groups need to be installed and then tightened and fixed respectively, thus ensuring the continuity of tightening.
[0020] Please refer to Figure 3 When tightening, first clamp a wrench on the outer sleeve 213 to keep it fixed, and then insert the sleeve 36 without the ejector rod 38 into the inner sleeve 35. At this time, keep the outer sleeve 213 stationary and rotate the sleeve 36, so that the corresponding bidirectional rod 27 will be driven to rotate. Please refer to Figure 7Since the push rod 33 is not under force, the synchronization block 34 is stuck in the two synchronization grooves 31 respectively. As the inner sleeve 35 rotates, the two bidirectional rods 27 rotate synchronously. Limit sleeves 212 are installed on both sides of the clamping sleeve 21, so the two ends of the two bidirectional rods 27 are limited. The two bidirectional rods 27 are respectively connected to a plurality of threaded blocks 26 on the upper and lower sides by reverse threads, and the threaded blocks 26 are slidably connected in the limit grooves 29. Therefore, the bidirectional blocks 23 at the upper and lower ends slide synchronously along the bidirectional grooves 22 respectively, and the plurality of shrinkage blocks 24 at both ends approach each other. Since the plurality of shrinkage blocks 24 are arranged in an interlaced manner, the plurality of shrinkage blocks 24 at the upper and lower ends can be inserted into the positions of the other end. Since the inclined surface 25 is in contact with the stranded wire 11, the stranded wire 11 is driven to be pushed outwards, and a relatively large included angle is maintained by the rollers 211 at both ends, avoiding damage to the stranded wire 11 caused by excessive local angle. Therefore, the tightening and fixing of the stranded wire 11 are completed.
[0021] Please refer to Figures 6 to 9 , the synchronization mechanism includes synchronization grooves 31 and telescopic holes 32 formed in the two bidirectional rods 27. A push rod 33 is slidably connected in the two telescopic holes 32. A synchronization block 34 is installed at the middle position of the push rod 33. When the two bidirectional rods 27 are in contact with each other, the synchronization block 34 is stuck in the two synchronization grooves 31. The synchronization mechanism further includes an inner sleeve 35 and a sleeve 36 installed on the two bidirectional rods 27. Two sleeves 36 are installed, and a fixing rod 37 is installed between the two sleeves 36. A push rod 38 is installed in one of the sleeves 36. When it is necessary to disconnect the connection between the two synchronization grooves 31 and the synchronization block 34, the push rod 38 is inserted into the telescopic hole 32, and the synchronization block 34 is pushed by the push rod 38 to disconnect the connection with the synchronization groove 31. Return springs 39 are installed on both sides of the synchronization block 34, and the two ends of the return springs 39 are respectively abutted in the synchronization grooves 31 on both sides. Thrust grooves 310 are respectively formed on the sides of the two bidirectional rods 27 close to each other, and thrust bearings 311 are connected in the thrust grooves 310 in a limited manner.
[0022] Please refer to Figure 7, when it is necessary to adjust the positions of multiple contraction blocks 24 on each side, since it may be necessary to separately adjust the positions of multiple contraction blocks 24 on both sides during each clamping and fixing to adapt to different situations of the stranded wire 11. First, the sleeve 36 on the side containing the ejector rod 38 is sleeved on the inner sleeve 35. Since the length of the ejector rod 38 is greater than the length of the sleeve 36, at this time, the ejector rod 38 will first insert into the telescopic hole 32, and then the ejector rod 38 will push the push rod 33 to slide in the telescopic hole 32. At the same time, the return spring 39 on the other side is in a compressed state. Since the diameter of the return spring 39 is very small and it can only play a role in the return stroke, then the push rod 33 will push the synchronization block 34 to move towards the synchronization groove 31 on the other side until the synchronization block 34 is completely inserted into the synchronization groove 31 on the other side. At this time, the sleeve 36 is also inserted into the inner sleeve 35, and then the inner sleeve 35 is rotated again. Therefore, the bidirectional rod 27 on one side will be driven to rotate, and at this time, only the contraction blocks 24 on the corresponding side will be driven to move accordingly. Then, the contraction blocks 24 on one side can be adjusted separately. At this time, the contraction blocks 24 at both ends can be adjusted separately according to different situations of the stranded wire 11, thereby meeting different situations and improving the use effect.
[0023] In all the above-mentioned solutions, for the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, and will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A novel high-strength nano-aluminum alloy fitting, comprising a stranded wire (11) connected to a converter station; The invention also comprises a clamping mechanism, the clamping mechanism comprising a clamping sleeve (21), a plurality of bidirectional grooves (22) being formed on the side wall of the clamping sleeve (21) at equal intervals, and a bidirectional block (23) being slidably connected in each of the bidirectional grooves (22), the plurality of bidirectional blocks (23) being arranged at intervals and staggered, and a shrinking block (24) being installed on each of the bidirectional blocks (23), and a staggered inclined surface (25) being formed on each of the shrinking blocks (24), and a plurality of the inclined surfaces (25) on one side being attached to the side wall of the stranded wire (11), a threaded block (26) being installed on a side of each of the bidirectional blocks (23) away from the inclined surface (25), and two bidirectional rods (27) being rotationally symmetrically arranged in the clamping sleeve (21), and the threaded blocks (26) at the upper and lower ends being respectively threadedly connected in opposite directions to the two bidirectional rods (27); and The synchronization mechanism comprises a synchronization groove (31) and a telescopic hole (32) formed on the two bidirectional rods (27), a push rod (33) being slidably connected in the two telescopic holes (32), a synchronization block (34) being installed in the middle of the push rod (33), and the synchronization block (34) being stuck in the two synchronization grooves (31) when the two bidirectional rods (27) are in contact with each other.
2. The novel high-strength nano-aluminum alloy hardware according to claim 1 is characterized in that: The clamping mechanism further comprises a guide bar (28) mounted on the threaded block (26), and corresponding limit grooves (29) are respectively provided on both sides of the clamping sleeve (21), and the guide bar (28) is slidably connected in the limit grooves (29).
3. The novel high-strength nano-aluminum alloy hardware according to claim 2 is characterized in that: Two fixing frames (210) are symmetrically mounted on both sides of the clamping sleeve (21), and rollers (211) are rotatably mounted on the upper and lower ends of the two fixing frames (210), and the rollers (211) on both sides are pressed against the side walls of the stranded wire (11).
4. The novel high-strength nano-aluminum alloy hardware according to claim 3 is characterized in that: The two sides of the clamping sleeve (21) are respectively threadedly connected to the limiting sleeves (212), and the two limiting sleeves (212) are respectively fitted on the two bidirectional rods (27), and the two sides of the clamping sleeve (21) are respectively coaxially mounted with external sleeves (213), and the limiting sleeves (212) are pressed on the external sleeves (213).
5. The novel high-strength nano-aluminum alloy hardware according to claim 1 is characterized in that: The synchronization mechanism further comprises an inner sleeve (35) and a sleeve (36) mounted on the two bidirectional rods (27); two sleeves (36) are mounted, and a fixing rod (37) is mounted between the two sleeves (36); and a push rod (38) is mounted in one of the sleeves (36); when it is necessary to release the connection between the two synchronization grooves (31) and the synchronization block (34), the push rod (38) is inserted into the telescopic hole (32), and the synchronization block (34) is pushed by the push rod (38) to release the connection between the synchronization groove (31).
6. The novel high-strength nano-aluminum alloy hardware according to claim 5 is characterized in that: Restoring springs (39) are respectively installed on both sides of the synchronization block (34), and the restoring springs (39) at both ends are respectively abutted against the synchronization grooves (31) at both sides.
7. The novel high-strength nano-aluminum alloy hardware according to claim 6 is characterized in that: A thrust groove (310) is respectively provided on one side of the two bidirectional rods (27) that are close to each other, and a thrust bearing (311) is limit-connected inside the thrust groove (310).