Mountain wind power plant current collection line anti-abrasion suspension clamp structure

Abstract

The present application relates to the technical field of wire clamp, in particular to a kind of mountain wind power plant power collection line anti-abrasion suspension wire clamp structure, including wire clamp, suspension hoop one, buckling plate, teflon sleeve and suspension hoop two;The wire clamp as a whole is open type circular arc plate structure, and the outer ring surface of wire clamp is provided with annular reserved groove, and the annular reserved groove is arranged along the circumference of wire clamp outer ring surface and is completely surrounded;The inner ring surface of wire clamp is fixedly attached with rubber pad one, and the two non-closed end faces of wire clamp opening are fixedly installed with rubber pad two;Beneficial effect is that: by rubber pad one and rubber pad two respectively arranged on the inner and outer sides of wire clamp, the flexible clamping of cable in full circumference is realized, which not only disperses the clamping pressure to avoid the rigid extrusion and abrasion of cable insulation layer, but also can fill the gap of wire clamp opening end face to eliminate the rigid collision abnormal sound in operation, cooperate with the screw column unit block of wire clamp end part body type split, without pre-tapping, even locking can be realized.

Description

Technical Field

[0001] This invention relates to the field of wire clamp technology, specifically to a wear-resistant suspension wire clamp structure for power collection lines in mountainous wind farms. Background Technology

[0002] Currently, the power collection lines of mountain wind farms are in complex outdoor conditions with frequent strong winds and large terrain undulations. The lines are prone to high-frequency reciprocating oscillations due to airflow disturbances. Traditional suspension clamps mostly use an integrated rigid clamp structure to directly clamp the cable. On the one hand, the hard metal inner wall is in direct contact with the outer insulation sheath of the cable. Under long-term reciprocating relative sliding action, the insulation layer is prone to wear and tear, and the wire core is exposed, which greatly increases the safety risk of line tripping. On the other hand, the suspension connection of traditional clamps mostly uses metal parts directly hinged. Not only is the hinged part prone to wear and failure under high-frequency vibration, but it is also prone to forming rigid inflection points due to the inability to adapt to the line oscillation angle, causing local stress concentration and breakage of the cable.

[0003] Meanwhile, most of the existing split-type splicing structures of suspension clamps have problems such as difficulty in installation and alignment, low efficiency of high-altitude operations, and the connection bolts are prone to loosening due to continuous vibration after long-term operation, making it difficult to meet the high reliability requirements of long-term operation and maintenance of mountain wind farms. Summary of the Invention

[0004] The purpose of this invention is to provide a wear-resistant suspension clamp structure for power collection lines in mountainous wind farms, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wear-resistant suspension clamp structure for a mountain wind farm collector line, comprising a clamp, a suspension hoop one, a buckle plate, a Teflon sleeve, and a suspension hoop two; the clamp is an open-type arc-shaped plate structure, with an annular reserved groove on the outer ring surface of the clamp, the annular reserved groove being completely arranged around the outer ring surface of the clamp; a rubber pad one is fixedly attached to the entire inner ring surface of the clamp, and rubber pad two is fixedly installed on the two unclosed end faces at the opening of the clamp; the groove of the reserved groove is transversely cut off from the rubber pad two on both sides; two sets of stud unit blocks are symmetrically installed at the left and right ends of the clamp, each set containing two stud unit blocks, the two stud unit blocks at the same end are symmetrically arranged and can be assembled to form a complete external thread stud structure, and the outer thread of the assembled external thread stud is fitted with a suitable nut.

[0006] Preferably, the stud unit block is entirely in a semi-cylindrical block structure, and an external thread structure is uniformly machined on the outer arc wall surface of the stud unit block; two stud unit blocks at the same end are respectively attached and fixed to two unclosed side surfaces of the arc surface at the end of the wire clamp correspondingly, the butt end surfaces of the two stud unit blocks are attached and adapted to each other, the central axes of the two semi-cylindrical stud unit blocks coincide, and a complete cylindrical threaded column structure is formed after being spliced.

[0007] Preferably, the first suspension hoop is an integrally formed structure, which is composed of a bottom annular ring and rectangular connecting plates symmetrically fixed at both ends of the ring, and the connecting plates at both ends are arranged perpendicular to the end face of the bottom annular ring; the inner diameter of the bottom annular ring of the first suspension hoop is adapted to the diameter of the groove bottom of the reserved groove on the outer ring surface of the wire clamp, the bottom annular ring of the first suspension hoop is nested and clamped and installed inside the groove body of the reserved groove; an integrally formed positioning block is fixed on the outer plate surface of the connecting plate of the first suspension hoop.

[0008] Preferably, the buckle plate is entirely of an integrated "匚"-shaped plate structure, two buckle plates are provided and correspond one-to-one to the connecting plates at both ends of the first suspension hoop; the two buckle plates are respectively staggered from the outside and sleeved outside the corresponding connecting plate, and the parallel double side plates of the buckle plate are attached to the front and rear side walls of the connecting plate; the center positions of the two side plates of the buckle plate and the center position of the plate body of the connecting plate of the first suspension hoop are correspondingly provided with first bolt holes with matching aperture and position, and the first bolt holes arranged correspondingly up and down remain coaxially through.

[0009] Preferably, the surface of the intermediate connecting main plate of the buckle plate is provided with two symmetrically distributed rectangular sockets through; positioning blocks corresponding one-to-one to the number, shape and position of the rectangular sockets are fixed on the outer plate surface of the connecting plate of the first suspension hoop, the positioning blocks and the connecting plate are an integrated structure, the external dimension of the positioning block is precisely adapted to the inner hole size of the socket, and the positioning block is inserted and limited inside the corresponding socket.

[0010] Preferably, an adapted first bolt is threaded inside the coaxially penetrating first bolt hole, and a cylindrical Teflon sleeve is sleeved outside the screw segment of the first bolt; the axial length of the Teflon sleeve is adapted to the relative spacing between the connecting plates on both sides of the first suspension hoop, the two end faces of the Teflon sleeve are respectively attached and butted to the opposite inner wall surfaces of the connecting plates on both sides, and the Teflon sleeve is limited and clamped between the gap of the two connecting plates.

[0011] Preferably, the second suspension hoop is an integrally formed structure, which is composed of a bottom arc sleeve plate and vertical clamping plates symmetrically fixed at both ends of the sleeve plate; the inner diameter of the bottom arc sleeve plate of the second suspension hoop is adapted to the outer diameter of the Teflon sleeve, the arc sleeve plate completely covers and nests on the outer circular side wall of the Teflon sleeve, and the second suspension hoop can perform small rotation adjustment around the central axis of the Teflon sleeve.

[0012] Preferably, bolt holes two with perfectly matched positions and diameters are opened on the vertical clamping plates at both ends of the suspension hoop two, and the bolt holes two on both sides are coaxially connected; a suitable bolt two is installed inside the bolt hole two, and the end of the bolt two rod extends out of the bolt hole two, and a matching locking nut is threaded on the extended end.

[0013] Preferably, both the screw ends of bolt one and bolt two are laterally provided with radially penetrating pin holes, which are circular through-hole structures; each pin hole is fitted with a matching spring pin, the pin feet at both ends of the spring pin are opened and limited to the outside of the pin hole, and the outer diameter of the spring pin matches the inner diameter of the pin hole.

[0014] Preferably, the first rubber pad is made of a highly wear-resistant, UV-resistant, and weather-resistant rubber material. The shape of the first rubber pad completely matches the arc contour of the inner ring surface of the clamp. The first rubber pad is fully covered and fixed to the entire inner ring wall of the clamp, and the thickness of the first rubber pad is uniform. The second rubber pad is fixedly attached to the entire surface area of ​​the opening end face of the clamp.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The anti-wear suspension clamp structure for power collection lines in mountainous wind farms proposed in this invention achieves full-circumferential flexible clamping of the cable through rubber pads 1 and 2 respectively placed on the inner and outer sides of the clamp. This not only disperses the clamping pressure to prevent rigid compression and wear on the cable insulation layer, but also fills the gap at the opening and closing end faces of the clamp to eliminate abnormal noise from rigid collisions during operation. Combined with the integrally assembled stud unit block at the end of the clamp, uniform locking can be achieved without pre-tapping, adapting to the installation requirements of power collection lines with different wire diameters. At the same time, the pre-reserved groove provides axial limiting for the suspension clamp 1. The pre-positioning structure of the positioning block and socket significantly reduces the difficulty of high-altitude installation alignment. Furthermore, the low-friction weather-resistant Teflon sleeve fitted on the hinged part enables the adaptive angle rotation of the suspension clamp, avoiding rigid stress concentration at the suspension point when the line swings under strong wind conditions. Combined with the axial limiting structure of the spring pin at the end of the bolt, the overall structure's vibration resistance and anti-loosening performance are comprehensively improved. This effectively solves the pain points of traditional suspension clamps being prone to wear, loosening, and poor adaptability in the complex working conditions of mountain wind farms, and significantly extends the operation and maintenance cycle and operational reliability of the collection line. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Sectional view of the structure at point AA; Figure 3 for Figure 1 Structural cross-section view at point BB; Figure 4 for Figure 1Structural section view at point CC; Figure 5 This is a schematic diagram of the wire clamp structure of the present invention; Figure 6 This is a schematic diagram of the suspension hoop structure of the present invention.

[0017] In the diagram: 1. Wire clamp 101. 102. 103. 104. 105. 106. 107. 108. 109. 100. 2. 201. 201. 3. 301. 302. 303. 303. 4. 5. 501. 502. 501. 502. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 6 This invention provides a technical solution: a wear-resistant suspension clamp structure for a mountain wind farm collector line, comprising a clamp 1. The clamp 1 adopts an arc-shaped plate structure design, and its outer ring surface has an annular reserved groove 101. The reserved groove 101 is distributed around the outer ring surface of the clamp 1 completely, and the groove of the reserved groove 101 directly cuts off the rubber pads 103 fixed on the two unclosed end faces of the clamp 1. This structural design does not affect the normal deformation clamping effect of the rubber pads 103, and can provide a precise positioning and limiting space for the subsequent installation of the suspension hoop 2, avoiding the problem of axial movement and displacement of the suspension hoop during use. The inner ring surface of the clamp 1 is fixed with a rubber pad 102. The rubber pad 102 is made of highly wear-resistant and weather-resistant rubber material, which can directly and flexibly contact the outer wall of the cable of the power collection line, greatly dispersing the clamping pressure of the clamp 1 on the cable, avoiding wear and damage to the outer insulation layer caused by the direct squeezing of the cable by the hard metal clamp, and is suitable for the complex outdoor operating environment of mountain wind farms with many winds, sand and strong ultraviolet rays.

[0020] Two stud unit blocks 104 are fixed at both ends of the wire clamp 1. The two stud unit blocks 104 are respectively close to one side of the two unclosed surfaces of the arc surface at the end of the wire clamp 1. The stud unit block 104 is a semi-cylindrical structure with external threads. When the two unclosed end faces of the wire clamp 1 approach each other under the action of external force, the two stud unit blocks 104 at the same end can be precisely assembled into a complete external thread stud. The matching nut 105 can be directly screwed onto the assembled stud. This split stud design does not require pre-tapping on the metal wire clamp, which reduces the overall processing difficulty of the wire clamp. At the same time, during the process of compressing the cable, the two semi-cylindrical stud unit blocks 104 can be subjected to force simultaneously, ensuring that the locking force on both sides is evenly distributed, avoiding the problem of local cable damage caused by excessive locking force on one side. After the wire clamp 1 is fitted onto the outside of the power collection line cable to be installed, a special pressing tool is used to apply opposing pressing forces to the two unclosed ends of the wire clamp 1, causing the two unclosed surfaces of the wire clamp 1 to continuously approach each other, simultaneously pressing the rubber pad 103 that is attached to the end face. The rubber pad 103 undergoes elastic deformation after being compressed, which can fill the tiny gap between the two unclosed end faces of the wire clamp 1, avoiding abnormal noise and wear caused by rigid collision between the end faces during operation. At the same time, the two adjacent stud unit blocks 104 are completely assembled into a complete external thread stud. The nut 105 is screwed into the assembled stud and gradually tightened. At this time, the rubber pad 102 fixed on the inner ring surface of the wire clamp 1 will be tightly clamped between the inner wall of the wire clamp 1 and the outer wall of the cable, which not only ensures the connection between the wire clamp and the cable, but also adapts to cables of different diameters through the elastic deformation of the rubber pad, while greatly reducing the risk of relative sliding wear between the cable and the wire clamp during long-term operation.

[0021] After completing the pre-installation and locking of the wire clamp 1 and the cable, the first suspension hoop 2 is entirely sleeved into the reserved groove 101 on the outer annular surface of the wire clamp 1. The annular reserved groove 101 forms axial limiting for the first suspension hoop 2, preventing the first suspension hoop 2 from shifting along the axial direction of the cable. The first suspension hoop 2 adopts a structural design of a bottom ring matched with integrally formed connecting plates at both ends. Two retaining plates 3 are respectively sleeved on the outer sides of the two connecting plates at the top of the first suspension hoop 2 in a staggered manner from both sides. The retaining plate 3 is entirely in a "匚"-shaped plate structure. First bolt holes 301 with corresponding positions are pre-opened on both parallel side plates of the retaining plate 3 and the connecting plate of the first suspension hoop 2. Meanwhile, two symmetrically distributed insertion ports 303 are opened on the connecting main plate between the two parallel plate bodies of the retaining plate 3. During installation, the positioning block 201 pre-fixed on the connecting plate of the first suspension hoop 2 needs to be accurately inserted into the corresponding insertion port 303. Through the insertion fit between the positioning block 201 and the insertion port 303, pre-positioning between the retaining plate 3 and the first suspension hoop 2 can be achieved in the stage before the first bolt 302 is locked, avoiding the错位偏移 of the retaining plate 3 during the subsequent process of installing the first bolt 302, ensuring that the first bolt holes 301 on both sides always remain coaxially aligned, and reducing the installation difficulty of high-altitude operations. After completing pre-positioning, the same set of first bolts 302 sequentially pass through the aligned first bolt holes 301 on the surfaces of the retaining plate 3 and the connecting plate, and then a matching lock nut is screwed onto the end of the first bolt 302 to complete locking. This connection structure of staggered retaining plates matched with positioning blocks can greatly improve the shear resistance of the connection between the first suspension hoop 2 and the retaining plate 3, adapt to the high-frequency vibration working condition under the strong wind environment of mountain wind farms, and avoid the problem of loosening and falling off of the connecting bolts after long-term operation.

[0022] Before installing bolt 302, the Teflon sleeve 4 needs to be placed in the gap between the two connecting plates of suspension clamp 2. This ensures that after bolt 302 is inserted into bolt hole 301, the Teflon sleeve 4 is completely fitted onto the outside of bolt 302, with both ends of the Teflon sleeve 4 adhering to the inner walls of the connecting plates on both sides. Teflon material has an extremely low coefficient of friction and excellent weather and wear resistance. When fitted onto the outside of bolt 302, it provides a hinge pivot for the subsequent installation of suspension clamp 2 5, prevents direct contact between the metal suspension clamp 2 5 and bolt 302, avoiding rigid wear, and reduces the risk of electrochemical corrosion between the two metal components, thus extending the service life of the overall structure. The outer side of the Teflon sleeve 4 is directly fitted with a suspension hoop 2 5. The suspension hoop 2 5 adopts a structural design with a bottom sleeve plate and two end integrated clamping plates. Both clamping plates have corresponding bolt holes 2 501. After the bolt 2 502 passes through the two aligned bolt holes 2 501, the nut is screwed in and locked, so that the bottom sleeve plate of the suspension hoop 2 5 can be completely fitted and fitted on the outer side of the Teflon sleeve 4. At this time, the suspension hoop 2 5 can rotate adaptively at a small angle around the axis of the Teflon sleeve 4. When the cable in the mountain wind farm is subjected to strong wind and swings slightly, the suspension hoop 2 5 can synchronously and adaptively adjust with the swing angle of the cable, avoiding local stress concentration and wear of the cable caused by rigid angle at the suspension point. Both bolts 302 and 502 have radially penetrating pin holes at their ends. After tightening all components, insert the matching spring pin into the corresponding pin hole and open the pinhole to axially limit the two bolts, completely preventing them from loosening and falling off under long-term vibration conditions, thus further improving the overall structural reliability. Finally, insert the wind farm installation rod between the two clamping plates at the top of suspension clamp 25 and tighten bolt 502 to complete the clamping and fixing. The entire installation process is convenient and suitable for complex high-altitude operations in mountain wind farms, effectively solving the problems of easy cable wear and loosening of connections after long-term operation of traditional suspension clamps.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant suspension clamp structure for power collection lines in mountainous wind farms, characterized in that: Comprises a wire clamp (1), a first suspension hoop (2), a buckle plate (3), a Teflon sleeve (4), and a second suspension hoop (5); the wire clamp (1) is an open circular arc plate structure as a whole, an annular reserved groove (101) is formed on the outer circumferential surface of the wire clamp (1), and the annular reserved groove (101) is arranged to completely surround the outer circumferential surface of the wire clamp (1) in the circumferential direction; a first rubber pad (102) is fixedly attached to the entire inner circumferential surface of the wire clamp (1), a second rubber pad (103) is fixedly mounted on both end faces of the two non-closed ends at the opening of the wire clamp (1), and the groove body of the reserved groove (101) transversely cuts through the two second rubber pads (103); two groups of stud unit blocks (104) are symmetrically mounted at both the left and right ends of the wire clamp (1), each group comprises two stud unit blocks (104), the two stud unit blocks (104) at the same end are arranged oppositely and symmetrically, and can be combined to form a complete external thread stud structure, and an adaptive nut (105) is threadedly assembled on the outer side of the combined external thread stud.

2. The anti-wear suspension clamp structure for the collector line of a mountain wind farm according to claim 1, characterized in that: The stud unit block (104) is a semi-cylindrical block structure as a whole, and an external thread structure is uniformly processed on the outer arc wall of the stud unit block (104); the two stud unit blocks (104) at the same end are respectively attached and fixed to the two non-closed side surfaces of the arc surface at the end of the wire clamp (1), the abutting end faces of the two stud unit blocks (104) are attached and adapted to each other, the central axes of the two semi-cylindrical stud unit blocks (104) coincide, and a complete cylindrical threaded stud structure is formed after combination.

3. The anti-wear suspension clamp structure for the collector line of a mountain wind farm according to claim 1, characterized in that: The first suspension hoop (2) is an integrally formed structure, which consists of a bottom annular ring and rectangular connecting plates symmetrically fixed at both ends of the ring, and the connecting plates at both ends are arranged perpendicular to the end face of the bottom ring; the inner diameter of the bottom ring of the first suspension hoop (2) is adapted to the groove bottom diameter of the reserved groove (101) on the outer circumferential surface of the wire clamp (1), and the bottom ring of the first suspension hoop (2) is nested and clamped inside the groove body of the reserved groove (101); an integrally formed positioning block (201) is fixed on the outer plate surface of the connecting plate of the first suspension hoop (2).

4. The anti-wear suspension clamp structure for the collector line of a mountain wind farm according to claim 3, characterized in that: The buckle plate (3) is an integral C-shaped plate structure as a whole, two buckle plates (3) are provided and correspond one-to-one to the connecting plates at both ends of the first suspension hoop (2); the two buckle plates (3) are respectively sleeved outside the corresponding connecting plates in a staggered manner from the outer side, and the parallel double side plates of the buckle plate (3) are attached to the front and rear side walls of the connecting plate; first bolt holes (301) with matching pore diameters and positions are correspondingly formed at the center positions of the two side plates of the buckle plate (3) and the center position of the plate body of the connecting plate of the first suspension hoop (2), and the vertically correspondingly arranged first bolt holes (301) maintain a coaxial through state.

5. The anti-wear suspension clamp structure for a mountain wind farm collector line according to claim 4, characterized in that: The middle connecting main plate of the buckle (3) has two symmetrically distributed rectangular sockets (303) through it; the outer side of the connecting plate of the suspension hoop (2) is fixed with positioning blocks (201) that correspond one-to-one with the number, shape and position of the rectangular sockets (303). The positioning blocks (201) and the connecting plate are an integral structure. The outer dimensions of the positioning blocks (201) are precisely matched with the inner hole dimensions of the sockets (303). The positioning blocks (201) are inserted and limited inside the corresponding sockets (303).

6. The anti-wear suspension clamp structure for a mountain wind farm collector line according to claim 4, characterized in that: A suitable bolt (302) is installed inside the coaxial through bolt hole (301). A cylindrical Teflon sleeve (4) is fitted on the outside of the bolt section of the bolt (302). The axial length of the Teflon sleeve (4) is adapted to the relative spacing between the connecting plates on both sides of the suspension hoop (2). The two end faces of the Teflon sleeve (4) are respectively attached to the relative inner wall surfaces of the connecting plates on both sides. The Teflon sleeve (4) is limited and clamped between the gaps of the two connecting plates.

7. The anti-wear suspension clamp structure for a mountain wind farm collector line according to claim 6, characterized in that: The second suspension hoop (5) is an integrally formed structure, consisting of a bottom arc-shaped sleeve plate and vertical clamping plates symmetrically fixed at both ends of the sleeve plate; the inner diameter of the bottom arc-shaped sleeve plate of the second suspension hoop (5) is adapted to the outer diameter of the Teflon sleeve (4), the arc-shaped sleeve plate completely covers and is nested in the outer circular side wall of the Teflon sleeve (4), and the second suspension hoop (5) can be rotated slightly around the central axis of the Teflon sleeve (4).

8. The anti-wear suspension clamp structure for mountain wind farm collector lines according to claim 7, characterized in that: On the vertical clamping plates at both ends of the suspension hoop (5), bolt holes (501) with matching positions and diameters are provided. The bolt holes (501) on both sides are coaxially connected. A suitable bolt (502) is installed inside the bolt hole (501). The end of the bolt (502) extends out of the bolt hole (501) and is threaded with a matching locking nut.

9. The anti-wear suspension clamp structure for mountain wind farm collector lines according to claim 8, characterized in that: The screw ends of bolt one (302) and bolt two (502) are both transversely provided with radially penetrating pin holes, which are circular through-hole structures. Each pin hole is fitted with a matching spring pin, and the pin feet at both ends of the spring pin are opened and limited to the outside of the pin hole. The outer diameter of the spring pin matches the inner diameter of the pin hole.

10. The anti-wear suspension clamp structure for mountain wind farm collector lines according to claim 1, characterized in that: The first rubber pad (102) is made of high wear-resistant, UV-resistant and weather-resistant rubber material. The shape of the first rubber pad (102) is completely matched with the arc contour of the inner ring surface of the wire clamp (1). The first rubber pad (102) is fully covered and fixed to the entire inner ring wall of the wire clamp (1), and the thickness of the first rubber pad (102) is uniform. The second rubber pad (103) is fixedly attached to the entire surface area of ​​the opening end face of the wire clamp (1).

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