Power distribution network cable fixing device and fixing method

Abstract

The invention provides a power distribution network cable fixing device and method, and relates to the technical field of cable fixing.The power distribution network cable fixing device comprises a winding base disc and two semicircular disc bases, a fixed roller and a movable roller are arranged between the two ends of each semicircular disc base, a supporting pin shaft is machined in the center of the bottom of the winding base disc, and a shaft column is machined at one end of the supporting pin shaft; a gear is in pin joint with the exterior of the supporting pin shaft, sliding plates are arranged on the two sides of the gear, racks are machined on the top surfaces of one sides of the sliding plates, and hydraulic push rods are hinged to the top surfaces of the other sides of the sliding plates; according to the technical scheme, a cable penetrates through the space between two semicircular disc seats, a sliding plate is controlled by a hydraulic push rod to slide in a positioning sliding groove, a rack machined to the surface of the sliding plate drives a gear to rotate, and therefore an assembly seat disc at the top of a supporting pin shaft is driven to rotate, and the tightening and releasing amount of the cable is high; and based on the large adjustable degree of the hydraulic push rod, the limitation degree in practical application is small.

Description

Technical Field

[0001] The present invention relates to the technical field of cable fixing, and in particular to a device and method for fixing cables in a distribution network. Background Art

[0002] The distribution network refers to the power grid that receives electric energy from the transmission network or regional power plants and distributes it locally or step by step according to voltage to various users through distribution facilities. The distribution network is composed of overhead lines, cables, towers, distribution transformers, disconnectors, reactive power compensators and some ancillary facilities, and plays an important role in distributing electric energy in the power grid.

[0003] The distribution network generally adopts closed-loop design and open-loop operation, and its structure is radial. The closed-loop structure is adopted to improve the flexibility of operation and power supply reliability; the open-loop operation is to limit the short-circuit fault current on the one hand to prevent the circuit breaker from exceeding the interruption capacity and exploding, and on the other hand to control the scope of the fault and avoid the expansion of the scope of the fault power outage.

[0004] The patent document with announcement number CN117096804B discloses a distribution network cable fixing device, in which the outer cylindrical surface of the first roller is tangent to the outer cylindrical surface of the second roller, and a circular channel is formed at the connection between the first annular inner groove and the second annular inner groove. The high-voltage wire passes through the circular channel in one first limiting structure and then passes out from the circular channel in another first limiting structure, and then the screw is rotated. The rotation of the screw causes the screw sleeve to move away from the screw, and the first roller applies thrust to the second roller. The movable shaft moves along the U-shaped plate, and the first roller and the second roller clamp the high-voltage wire. When the staff pulls the high-voltage wire, the high-voltage wire applies tangential force to the first roller, the first roller rotates, and the second roller also rotates. A circular channel is always maintained between the first roller and the second roller, and the circular channel can limit the movement range of the high-voltage wire, thereby preventing the high-voltage wire from falling between the first roller and the second roller during the movement.

[0005] However, in the process of implementing the above technical solution, it is found that the above technical solution has the following technical problems:

[0006] The clamping and fixing device used in the distribution network cable fixing device is provided with a roller with an annular inner groove in the clamping area. When the rollers are close to each other and cooperate with each other, the cable can be clamped. However, in actual use, the cable is clamped by the roller. Due to the easy rolling characteristics when the roller and the cable are connected, combined with the rotating mechanism, it is difficult to tighten and release the cable significantly according to needs, and the degree of restriction is relatively large. Summary of the invention

[0007] In order to overcome the disadvantages of the existing distribution network cable fixing device that, in actual use, the cable is clamped by the roller, and due to the easy rolling property when the roller is connected to the cable, combined with the rotating mechanism, it is difficult to tighten and release the cable significantly according to needs, and the cable is subject to a large degree of restriction, an embodiment of the present application provides a distribution network cable fixing device, which passes the cable between the fixed roller and the movable roller in a facing state, and uses a hydraulic push rod to control the sliding plate to slide inside the positioning slide groove, so that the rack drive gear processed on the surface of the slide plate rotates, thereby driving the assembly seat plate on the top of the support pin shaft to rotate, and the cable can be wound with the help of two semicircular disc seats, so the cable can be tightened and released. The amount of tightening and releasing is relatively high, and the hydraulic push rod has a large degree of adjustability, which is convenient for practical application.

[0008] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0009] A distribution network cable fixing device and fixing method, comprising a winding seat plate and a semicircular seat, wherein two semicircular seats are provided and symmetrically arranged on the top of the winding seat plate;

[0010] A fixed roller and a movable roller are arranged between the two ends of the two semicircular disc seats, and the outer sides of the fixed roller and the movable roller wheels are processed with sunken rings. The two fixed rollers are respectively opposite to the two movable rollers, and the two fixed rollers and the two movable rollers are symmetrical about the origin; the center of the circle where the two semicircular disc seats are located and the center of the circle where the winding seat plate is located overlap in the horizontal projection plane, and the distribution network cable passes between the fixed roller and the movable roller in the opposite state, and is rotated by the two semicircular disc seats in the horizontal plane to wind the cable around the outside of the two semicircular disc seats.

[0011] In a possible implementation, a storage slot is processed inside one side of the two semicircular disc seats, an L-shaped slot is processed inside one end of the semicircular disc seat, an electric push rod is assembled and connected to the inner wall of one end of the storage slot, a trapezoidal block A is assembled and connected to one end of the electric push rod, and a trapezoidal block B is processed at one end of the movable roller; one end of the L-shaped slot is connected to the inside of the other end of the storage slot, and one end of the electric push rod extends into the inside of the L-shaped slot through the storage slot, pushing the trapezoidal block A to slide inside one end of the L-shaped slot.

[0012] In a possible implementation, one end of the trapezoidal block A and one end of the trapezoidal block B are both processed with inclined surfaces, and the inclined surfaces on the trapezoidal block A and the trapezoidal block B fit together. The trapezoidal block A is pushed by the electric push rod to slide inside one end of the L-shaped groove, thereby pushing the trapezoidal block B to slide out inside the other end of the L-shaped groove.

[0013] In a possible implementation, one end of the fixed roller is fixedly assembled to the surface of one end of the semicircular disc seat, and the distribution network cable passes between the fixed roller and the movable roller in a facing state. The movable roller is pushed by the trapezoidal block B to press the cable against the other end of the fixed roller.

[0014] In one possible implementation, a support pin is machined at the center of the bottom of the winding seat plate, a shaft column is machined at one end of the support pin, a bearing is interference fit on the outside of the shaft column, a gear is pin-connected to the outside of the support pin, slides are provided on both sides of the gear, a rack is machined on the top surface of one side of the slide, and a hydraulic push rod is hingedly connected to the top surface of the other side of the slide.

[0015] In one possible implementation, a guide arc plate is processed on the top of the winding seat disk, and the two guide arc plates are symmetrical about the origin. The cable passes between the fixed roller and the movable roller in a facing state, and is rotated in the horizontal plane by the two semicircular disc seats, and is wound around the outside of the two semicircular disc seats by the two guide arc plates.

[0016] In a possible implementation, a receiving arc groove is processed on the bottom of one side of the two semicircular disc seats, and the cables coiled around the outside of the two semicircular disc seats are received inside the receiving arc groove.

[0017] In one possible implementation, an assembly seat disc is provided at the bottom of the winding seat disc, a receiving ring groove is processed on the outer side of the top of the assembly seat disc, and a plurality of support rollers are provided on the bottom inner wall of the receiving ring groove; the plurality of support rollers are evenly spaced around the center of the assembly seat disc, and the plurality of support rollers are all supported on the bottom surface of the winding seat disc.

[0018] In one possible implementation, two positioning grooves are processed on the top of the assembly seat disc, the bottoms of the two sliding plates are respectively slidably connected inside the two positioning grooves, one end of the two hydraulic push rods are hingedly connected to the top surface of the assembly seat disc, and the bearing is interference fit to the center of the top of the assembly seat disc.

[0019] A fixing method for a distribution network cable fixing device, comprising: realizing a fixing function by using a fixed roller and a movable roller in a facing state, controlling a trapezoidal block A to slide inside one end of an L-shaped groove by an electric push rod, pushing the trapezoidal block B to slide inside the other end of the L-shaped groove by means of an inclined surface matched with the trapezoidal block B, and pushing the movable roller to approach the fixed roller, so as to clamp the cable passing between the movable roller and the fixed roller;

[0020] The fixing function is realized by two semicircular disc seats that can rotate in a plane. Two hydraulic push rods respectively control the two slides to slide inside the two positioning slide grooves, and drive the gear outside the support pin shaft with the help of a rack to drive the assembly seat plate to rotate, so that the two semicircular disc seats will reel the cables passing between the fixed roller and the movable roller to the outside.

[0021] The beneficial effects of this application are:

[0022] First, in this solution, the cable is passed between the fixed roller and the movable roller in the facing state, and the slide plate is controlled to slide inside the positioning slide groove by means of a hydraulic push rod, so that the rack drive gear processed on the surface of the slide plate rotates, thereby driving the assembly seat plate on the top of the support pin shaft to rotate, and the cable can be wound with the help of two semicircular disc seats, which has a high tightening and releasing amount for the cable, and is convenient for practical application due to the large adjustable degree of the hydraulic push rod;

[0023] Second, in this solution, the electric push rod is used to control the trapezoidal block A to slide inside one end of the L-shaped groove. With the help of the cooperation between the inclined surface on the trapezoidal block A and the inclined surface on the trapezoidal block B, the trapezoidal block B slides inside the other end of the L-shaped groove, pushing the movable roller close to the fixed roller, and clamping the cable passing between the movable roller and the fixed roller. Compared with the existing control method, it is fast in action and easy to use in laying cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the present invention in which the winding seat disc and the assembly seat disc are disconnected;

[0026] Figure 3 It is a structural schematic diagram of the seat plate of the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of the middle A part;

[0028] Figure 5 It is a cross-sectional view of the semicircular disc seat of the present invention.

[0029] Figure numerals: 1. semicircular disc seat; 2. electric push rod; 3. fixed roller; 4. guide arc plate; 5. assembly seat disc; 6. storage arc groove; 7. support roller; 8. storage ring groove; 9. movable roller; 10. winding seat disc; 11. storage notch; 12. trapezoidal block A; 13. hydraulic push rod; 14. positioning slide groove; 15. rack; 16. slide plate; 17. support pin shaft; 18. gear; 19. bearing; 20. shaft column; 21. trapezoidal block B; 22. L-shaped groove. DETAILED DESCRIPTION

[0030] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0031] Embodiment 1:

[0032] This embodiment introduces a power distribution network cable fixing device and fixing method. Figure 1 Figure 2 and Figure 5 As shown, it includes a winding seat disc 10, two semicircular disc seats 1 symmetrically arranged on the top of the winding seat disc 10, a fixed roller 3 and a movable roller 9 are arranged between the two ends of the two semicircular disc seats 1, a receiving notch 11 is processed inside one side of the two semicircular disc seats 1, an L-shaped groove 22 is processed inside one end of the semicircular disc seat 1, an electric push rod 2 is assembled and connected at the inner wall of one end of the receiving notch 11, a trapezoidal block A12 is assembled and connected at one end of the electric push rod 2, and a trapezoidal block B21 is processed at one end of the movable roller 9;

[0033] like Figure 5 As shown, one end of the fixed roller 3 is assembled and fixed to the surface of one end of the semicircular disc seat 1, one end of the L-shaped groove 22 is connected to the inside of the other end of the receiving groove 11, and one end of the electric push rod 2 extends into the inside of the L-shaped groove 22 through the receiving groove 11, pushing the trapezoidal block A12 to slide inside one end of the L-shaped groove 22;

[0034] Among them, by processing inclined surfaces at one end of the trapezoidal block A12 and one end of the trapezoidal block B21, and the inclined surfaces on the trapezoidal block A12 and the trapezoidal block B21 fit each other, when the electric push rod 2 controls the trapezoidal block A12 to slide inside one end of the L-shaped groove 22, the inclined surface that cooperates with the trapezoidal block B21 pushes the trapezoidal block B21 to slide inside the other end of the L-shaped groove 22, and pushes the movable roller 9 to approach the fixed roller 3, so as to clamp the cable passing between the movable roller 9 and the fixed roller 3;

[0035] At the same time, the outer sides of the fixed roller 3 and the movable roller 9 are processed with sunken rings, and the two fixed rollers 3 are respectively opposite to the two movable rollers 9, and the two fixed rollers 3 and the two movable rollers 9 are symmetrical about the origin, and the two trapezoidal blocks A12 are respectively controlled by two electric push rods 2 to drive the two trapezoidal blocks B21 to move. When the two movable rollers 9 are pressed by the two trapezoidal blocks B21 to the fixed roller 3, excessive pressure on the cable and withdrawal from the top and bottom of the fixed roller 3 and the movable roller 9 can be avoided.

[0036] Specifically, when using the distribution network cable fixing device to fix the distribution network cable located at a high place, the cable passing through between the fixed roller 3 and the movable roller 9 can be clamped by means of the fixed roller 3 and the movable roller 9 in a facing state, as follows:

[0037] In actual application, the electric push rod 2 is started to control the trapezoidal block A12 to slide inside one end of the L-shaped groove 22 inside the storage slot 11. With the cooperation of the inclined surface on the trapezoidal block A12 and the inclined surface on the trapezoidal block B21, the trapezoidal block A12 pushes the trapezoidal block B21 to move in a direction perpendicular to the trapezoidal block A12 (i.e., slides inside the other end of the L-shaped groove 22) during the movement, thereby pushing the movable roller 9 to approach the fixed roller 3, and clamping the cable passing between the movable roller 9 and the fixed roller 3.

[0038] Embodiment 2:

[0039] Based on Example 1, this example introduces the specific structure of the winding seat disc 10, such as Figures 1 to 5 As shown, a support pin 17 is processed at the center of the bottom of the winding seat disc 10, a shaft column 20 is processed at one end of the support pin 17, a bearing 19 is interference-fitted on the outside of the shaft column 20, a gear 18 is pin-connected to the outside of the support pin 17, a slide plate 16 is provided on both sides of the gear 18, a rack 15 is processed on the top surface of one side of the slide plate 16, and a hydraulic push rod 13 is hingedly connected to the top surface of the other side of the slide plate 16;

[0040] Among them, two positioning grooves 14 are processed on the top of the assembly seat plate 5. By making the bottoms of the two slide plates 16 slidably connected to the inside of the two positioning grooves 14, when one end of the two hydraulic push rods 13 is hingedly connected to the top surface of the assembly seat plate 5, and the bearing 19 is interference-fitted to the center of the top of the assembly seat plate 5, the hydraulic push rod 13 can control the slide plate 16 to slide inside the positioning groove 14, and the rack 15 processed on the surface of the slide plate 16 drives the gear 18 to drive the support pin 17 to rotate, thereby driving the assembly seat plate 5 on the top of the support pin 17 to rotate;

[0041] Secondly, if Figure 5 As shown, the center of the circle where the two semi-circular disc seats 1 are located and the center of the circle where the winding seat disc 10 is located overlap in the horizontal projection plane. When the distribution network cable passes between the fixed roller 3 and the movable roller 9 in the facing state, the two semi-circular disc seats 1 rotate in the horizontal plane, and the cable is wound around the outside of the two semi-circular disc seats 1, so that the cable can be wound around the outside of the disc-like disk to ensure the stability of the retractable wire.

[0042] Furthermore, in order to avoid the cable from interfering with the corners of the receiving arc groove 6 when the winding seat plate 10 drives the two semicircular seat plates 1 to wind the cable, thereby causing the cable to be damaged. Figure 2 and Figure 5As shown, the top of the winding seat disc 10 is processed with a guide arc plate 4, and the two guide arc plates 4 are symmetrical about the origin. By passing the cable between the fixed roller 3 and the movable roller 9 in the facing state, the cable can be guided by the two guide arc plates 4 to be wound around the outside of the two semi-circular disc seats 1 under the influence of the rotation of the two semi-circular disc seats 1 in the horizontal plane, so as to tighten and release the cable in the erection state;

[0043] Furthermore, in order to prevent the cables wound around the two semicircular disc seats 1 from escaping from the outer sides of the two semicircular disc seats 1 toward the top, as shown in FIG. Figure 2 As shown, the bottom of one side of the two semicircular disc seats 1 is processed with a receiving arc groove 6, and the cables wound outside the two semicircular disc seats 1 are received inside the receiving arc groove 6, so that the cables in the wound state can be well positioned;

[0044] In some examples, an assembly seat plate 5 is disposed at the bottom of the winding seat plate 10, a receiving ring groove 8 is processed on the outer side of the top of the assembly seat plate 5, and a plurality of supporting rollers 7 are disposed on the bottom inner wall of the receiving ring groove 8;

[0045] Among them, multiple support rollers 7 are equally spaced around the center of the assembly seat plate 5. By supporting the multiple support rollers 7 on the bottom surface of the winding seat plate 10, the movement resistance can be reduced when the winding seat plate 10 drives the two semicircular disc seats 1 to rotate in the horizontal plane.

[0046] In some examples, two hydraulic push rods 13 respectively control the two slides 16 to slide inside the two positioning grooves 14, and drive the gear 18 outside the support pin shaft 17 with the help of the rack 15 to drive the assembly seat plate 5 to rotate, so that the two semicircular disc seats 1 will wind the cables passing through the fixed roller 3 and the movable roller 9 to the outside.

[0047] Specifically, when the distribution network cable fixing device fixes the distribution network cable located at a high place, the cable passing through the two semicircular disc seats 1 can be coiled by means of two semicircular disc seats 1 rotating in the horizontal plane, as follows:

[0048] The cables erected in the air pass between the fixed roller 3 and the movable roller 9 in the facing state. When the hydraulic push rod 13 controls the slide plate 16 to slide inside the positioning slide groove 14, the gear 18 is driven to rotate with the help of the rack 15 processed on the surface of the slide plate 16, thereby driving the assembly seat plate 5 on the top of the support pin shaft 17 to rotate, so that the cables can be coiled with the help of the two semicircular disc seats 1, so that the cables are guided from the outer side of the guide arc plate 4 into the inner side of the storage arc groove 6, and during the coiling process, they are restricted from escaping from the outside of the semicircular disc seat 1.

[0049] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A distribution network cable fixing device, characterized in that: include: Winding seat plate (10); Two semicircular disc seats (1) are provided and are symmetrically arranged on the top of the winding seat disc (10); A fixed roller (3) and a movable roller (9) are arranged between the two ends of the two semicircular disc seats (1); the outer sides of the fixed roller (3) and the movable roller (9) are processed with an inwardly sunken ring track; the two fixed rollers (3) are respectively opposite to the two movable rollers (9); and the two fixed rollers (3) and the two movable rollers (9) are symmetrical about the origin; The centers of the two semicircular disc seats (1) and the center of the winding disc (10) overlap in a horizontal projection plane, and the distribution network cable passes between the fixed roller (3) and the movable roller (9) in a facing state, and the two semicircular disc seats (1) rotate in a horizontal plane to wind the cable around the outside of the two semicircular disc seats (1).

2. A distribution network cable fixing device according to claim 1, characterized in that: A receiving notch (11) is machined inside one side of the two semicircular disc seats (1), an L-shaped groove (22) is machined inside one end of the semicircular disc seat (1), an electric push rod (2) is assembled and connected to the inner wall of one end of the receiving notch (11), a trapezoidal block A (12) is assembled and connected to one end of the electric push rod (2), and a trapezoidal block B (21) is machined at one end of the movable roller (9); One end of the L-shaped groove (22) is connected to the inside of the other end of the receiving groove (11), and one end of the electric push rod (2) extends into the inside of the L-shaped groove (22) through the receiving groove (11) to push the trapezoidal block A (12) to slide inside one end of the L-shaped groove (22).

3. A distribution network cable fixing device as claimed in claim 2, characterized in that: One end of the trapezoidal block A (12) and one end of the trapezoidal block B (21) are both processed with inclined surfaces, and the inclined surfaces on the trapezoidal block A (12) and the trapezoidal block B (21) fit each other. The trapezoidal block A (12) is pushed by the electric push rod (2) to slide inside one end of the L-shaped groove (22), thereby pushing the trapezoidal block B (21) to slide out from the inside of the other end of the L-shaped groove (22).

4. A distribution network cable fixing device according to claim 1, characterized in that: One end of the fixed roller (3) is fixedly assembled with the surface of one end of the semicircular disc seat (1); the power distribution network cable passes between the fixed roller (3) and the movable roller (9) in a facing state; the movable roller (9) is pushed by the trapezoidal block B (21) to press the cable onto the other end of the fixed roller (3).

5. A distribution network cable fixing device according to claim 1, characterized in that: A support pin (17) is machined at the center of the bottom of the winding seat plate (10), a shaft column (20) is machined at one end of the support pin (17), a bearing (19) is interference fit on the outside of the shaft column (20), the support pin (17) is pin-connected to the outside with a gear (18), slides (16) are provided on both sides of the gear (18), a rack (15) is machined on the top surface of one side of the slide (16), and a hydraulic push rod (13) is hingedly connected to the top surface of the other side of the slide (16).

6. A distribution network cable fixing device as claimed in claim 5, characterized in that: The top of the winding seat disc (10) is processed with a guide arc plate (4), and the two guide arc plates (4) are symmetrical about the origin. The cable passes between the fixed roller (3) and the movable roller (9) in a facing state, and is rotated in a horizontal plane by the two semicircular disc seats (1), and is wound around the outside of the two semicircular disc seats (1) by the two guide arc plates (4).

7. A distribution network cable fixing device according to claim 1, characterized in that: The bottom of one side of the two semicircular disc seats (1) is processed with an arc receiving groove (6), and the cables wound around the outside of the two semicircular disc seats (1) are received inside the arc receiving groove (6).

8. A distribution network cable fixing device as claimed in claim 5, characterized in that: The bottom of the winding seat disc (10) is provided with an assembly seat disc (5), the outer side of the top of the assembly seat disc (5) is processed with a receiving ring groove (8), and the bottom inner wall of the receiving ring groove (8) is provided with a plurality of supporting rollers (7); The plurality of support rollers (7) are arranged at equal intervals around the center of the assembly base plate (5), and the plurality of support rollers (7) are all supported on the bottom surface of the winding base plate (10).

9. A distribution network cable fixing device as claimed in claim 8, characterized in that: The top of the assembly seat disc (5) is processed with two positioning grooves (14), the bottoms of the two slide plates (16) are respectively slidably connected inside the two positioning grooves (14), one end of the two hydraulic push rods (13) are hingedly connected to the top surface of the assembly seat disc (5), and the bearing (19) is interference-fitted to the center of the top of the assembly seat disc (5).

10. A method for fixing a distribution network cable fixing device, which is implemented based on any one of claims 1 to 9, and is characterized in that: include: The fixed roller (3) and the movable roller (9) in a facing state realize the fixing function, and the electric push rod (2) controls the trapezoidal block A (12) to slide inside one end of the L-shaped groove (22). With the help of the inclined surface matched with the trapezoidal block B (21), the trapezoidal block B (21) is pushed to slide inside the other end of the L-shaped groove (22), and the movable roller (9) is pushed to approach the fixed roller (3), so as to clamp the cable passing between the movable roller (9) and the fixed roller (3); The fixing function is realized by two semicircular disc seats (1) that can rotate in a plane, two hydraulic push rods (13) respectively control two slide plates (16) to slide inside two positioning slide grooves (14), and drive the gear (18) outside the support pin shaft (17) with the help of a rack (15) to drive the assembly seat plate (5) to rotate, so that the two semicircular disc seats (1) can wind the cables passing between the fixed roller (3) and the movable roller (9) to the outside.

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