Cable terminal cabin penetrating equipment in transformer substation

Abstract

The invention relates to a cable terminal cabin penetrating device in a transformer substation, which comprises a support frame, a pair of support legs are symmetrically arranged on two sides of the bottom of the support frame, a laser positioning module is arranged on the top of the support frame, a storage box is arranged on one side of the support frame, a lifting assembly is arranged in the support frame, and the lifting assembly is connected with the support frame. And a cable clamping assembly is arranged on the lifting assembly. According to the cable terminal cabin penetrating equipment in the transformer substation, a first motor in the lifting assembly drives a rotating shaft to rotate, the rotating shaft drives gears on the two sides to rotate synchronously, racks on the two sides ascend and descend along first guide rails through the meshing effect of the gears and the racks, and the racks on the two sides drive a lifting plate to ascend and descend through a connecting frame; in addition, the first motor is in control connection with the controller, automatic operation can be achieved, and an operator can easily control lifting of the lifting plate only through the controller.

Description

Technical Field

[0001] This invention relates to the field of pluggable cable terminal installation technology, specifically to a cable terminal installation device for substations. Background Technology

[0002] Cable termination through a substation refers to the process of passing the cable termination through a pre-reserved hole in a specific compartment within the substation, followed by sealing and securing to ensure a reliable connection between the cable and the equipment inside the compartment and to guarantee the compartment's airtightness.

[0003] However, the traditional method of cable terminal installation in substations generally uses a combination of manual labor and lever hoists. During installation, the cable terminal often fails to be accurately aligned with the installation position, requiring repeated installation operations, which increases workload and time costs. Secondly, relying on manual operation makes it difficult to ensure that the bolts are tightened properly every time the cable is installed. During repeated adjustments and tightening, the cable terminal is prone to shaking and collisions due to improper operation. In severe cases, it may even damage critical components such as epoxy bushings and sealing structures, leading to serious power grid accidents and posing a great threat to the safe and stable operation of the power system. Summary of the Invention

[0004] The purpose of this invention is to provide a cable terminal insertion device for substations, addressing the issues raised in the background art where cable terminal insertion in substations typically involves a combination of manual labor and lever hoists. During insertion, the cable terminal often fails to accurately align with the insertion position, necessitating repeated insertion operations, increasing workload and time costs. Furthermore, manual operation makes it difficult to ensure bolts are properly tightened each time insertion. During repeated adjustments and tightening, improper operation can cause the cable terminal to shake or collide, potentially damaging critical components such as epoxy bushings and sealing structures, leading to serious power grid accidents and posing a significant threat to the safe and stable operation of the power system.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cable terminal insertion device in a substation, comprising a support frame, a pair of support feet symmetrically arranged on both sides of the bottom of the support frame, a laser positioning module arranged on the top of the support frame, a storage box arranged on one side of the support frame, a lifting assembly arranged inside the support frame, and a cable clamping assembly arranged on the lifting assembly.

[0006] Using the above technical solution, the support frame provides the installation foundation for the whole device, the support feet at the bottom of the support frame can stably support the whole device, the laser positioning module can determine the accurate position of the cable terminal passing through the compartment, correct the whole device, and thus improve the passing accuracy, and the storage box can be used to store the removed locking cap.

[0007] Preferably, the lifting assembly includes square slots formed on the inner walls of both sides of the support frame. A rotating shaft is provided on both sides of the support frame through bearing seats. A pair of gears are symmetrically sleeved on both sides of the rotating shaft. A rack is provided in the square slot on one side of each gear. A guide rail is provided in both square slots. Both racks are slidably mounted on the guide rail. A motor is provided on the outer wall of the support frame. The transmission end of the motor is connected to one end of the rotating shaft.

[0008] Using the above technical solution, the square slot in the lifting assembly provides an installation base for other components. Motor 1 provides rotational power to the rotating shaft, which drives the gears on both sides to rotate synchronously. The gears transmit power to the racks through meshing, causing the racks on both sides to rise and fall along the guide rail.

[0009] Preferably, a cover plate is provided on both sides of the support frame corresponding to the square groove, a connecting frame is provided on both racks, a lifting plate is provided between the two connecting frames, a controller is provided on one side of the support frame, and the laser positioning module and motor are connected to the controller.

[0010] Using the above technical solution, when the racks on both sides move, they drive the lifting plate to rise and fall through the connecting frame. The lifting plate provides an installation base for the cable clamping assembly, and the cover plate can protect the components in the square grooves on both sides of the support frame from external environmental interference.

[0011] Preferably, the cable clamping assembly includes a pair of fixed V-shaped clamps symmetrically arranged on the upper and lower sides of the lifting plate. Each fixed V-shaped clamp has a large U-shaped frame on both sides of the lifting plate, and each large U-shaped frame has a small U-shaped frame inside. A pair of guide rails are symmetrically arranged on the inner walls of both sides of the large U-shaped frame, and the small U-shaped frame is slidably arranged on the guide rails.

[0012] Using the above technical solution, the fixed V-shaped clamps located on the upper and lower sides of the lifting plate in the cable clamping assembly can cooperate with the movable V-shaped clamps to clamp the upper and lower sides of the cable. The large U-shaped frame on the lifting plate on both sides of each fixed V-shaped clamp provides the installation base for the small U-shaped frame, and the guide rails on the inner walls on both sides of the large U-shaped frame provide guidance for the small U-shaped frame, ensuring the stability of the small U-shaped frame when it moves.

[0013] Preferably, a pair of oil storage cylinders are symmetrically arranged on both sides of the large U-shaped frame, and piston rods are arranged on both sides of the small U-shaped frame corresponding to the positions of the oil storage cylinders. A piston is arranged at the end of the piston rod away from the small U-shaped frame, and the piston is slidably arranged inside the oil storage cylinder. A spring is arranged between the piston rod and the oil storage cylinder.

[0014] Using the above technical solution, the extensibility of the spring allows the movable V-shaped clamp to adaptively adjust according to the specifications and dimensions of the cable. The oil reservoirs on both sides of the large U-shaped frame are used to store hydraulic oil. The piston rods on both sides of the small U-shaped frame can drive the piston to slide inside the oil reservoir. The piston separates the oil reservoir space, and the hydraulic oil in the oil reservoir flows between the two chambers through the small hole on the piston, thereby generating a damping force, reducing the spring's rebound speed, ensuring the stability of the small U-shaped frame and the movable V-shaped clamp, and achieving stable clamping of the cable.

[0015] Preferably, each of the small U-shaped frames is provided with a connecting post on one side, the connecting post on the right side is connected to a movable V-shaped clamp via a hinge, and a fixed post is provided on one side of the connecting post on the left side. The fixed post passes through the movable V-shaped clamp on the side away from the hinge and is connected to a locking cap via a thread. Both the fixed V-shaped clamp and the movable V-shaped clamp are provided with rubber pads.

[0016] Using the above technical solution, the right connecting column is connected to the movable V-shaped clamp via a hinge, allowing the movable V-shaped clamp to rotate around the hinge to open or close. The fixed column on the left connecting column passes through the movable V-shaped clamp and can be threadedly connected to the locking cap to close and lock the movable V-shaped clamp. The rubber pads on the fixed V-shaped clamp and the movable V-shaped clamp can prevent the cable from being pinched and reduce bumps.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the cable terminal installation equipment in the substation: 1. The motor in the lifting assembly drives the rotating shaft to rotate, which in turn drives the gears on both sides to rotate synchronously. The meshing of the gears and racks causes the racks on both sides to rise and fall along the guide rail. The racks on both sides drive the lifting plate to rise and fall through the connecting frame, providing reliable lifting power for the cable clamping assembly. This ensures that the cable can accurately reach the required height for cable insertion. In addition, the motor is connected to the controller, which enables automated operation. Operators can easily control the lifting of the lifting plate through the controller, reducing the difficulty of operation and labor intensity, and improving work efficiency. 2. The fixed V-shaped clamp and the movable V-shaped clamp in the cable clamping assembly work together to effectively clamp the upper and lower sides of the cable. The extensibility of the spring allows the movable V-shaped clamp to adaptively adjust according to the specifications and dimensions of the cable. During the adjustment process, the movable V-shaped clamp drives the piston rod and piston one to slide in the oil reservoir through the connecting column and the small U-shaped frame. The hydraulic oil flows between the two chambers through the small hole on piston one, generating a damping force, reducing the spring's rebound speed, and ensuring the stability of the small U-shaped frame and the movable V-shaped clamp, thereby achieving stable clamping of the cable. In addition, the movable V-shaped clamp is connected to the connecting column through a hinge, which can be easily opened or closed, and can be locked by the cooperation of the fixed column and the locking cap. The operation is simple and convenient. The rubber pads on the fixed V-shaped clamp and the movable V-shaped clamp can effectively prevent damage to the cable, reduce impact, and improve the service life of the cable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the lifting component structure of the present invention; Figure 3 This is a schematic diagram of the lifting plate structure in the lifting assembly of the present invention; Figure 4 This is a schematic diagram of the cable clamping assembly structure of the present invention; Figure 5 This is a schematic diagram of the large U-shaped frame and the small U-shaped frame in the cable clamping assembly of the present invention.

[0019] In the diagram: 1. Support frame; 2. Support leg; 3. Laser positioning module; 4. Storage box; 5. Lifting assembly; 5. Square slot; 51. Rotary shaft; 52. Gear; 53. Rack; 54. Guide rail 1; 55. Motor 1; 56. Connecting frame; 57. Lifting plate; 58. Cover plate; 59. Controller; 510. Cable clamping assembly; 61. Fixed V-shaped clamp; 62. Large U-shaped frame; 63. Small U-shaped frame; 64. Guide rail 2; 65. Oil reservoir; 66. Piston rod; 67. Piston 1; 68. Spring; 69. Connecting column; 610. Movable V-shaped clamp; 611. Fixed column; 612. Locking cap; 613. Rubber pad. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on 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.

[0021] Please see Figures 1-5The present invention provides a technical solution: a cable terminal insertion device in a substation, including a support frame 1, a pair of support feet 2 symmetrically arranged on both sides of the bottom of the support frame 1, a laser positioning module 3 arranged on the top of the support frame 1, a storage box 4 arranged on one side of the support frame 1, a lifting assembly 5 arranged inside the support frame 1, and a cable clamping assembly 6 arranged on the lifting assembly 5. Referring to the attached diagrams in the instruction manual Figures 1-5 As shown, the support frame 1 provides the installation base for the whole device. The support feet 2 at the bottom of the support frame 1 can stably support the whole device. The laser positioning module 3 can determine the accurate position of the cable terminal passing through the cabin, correct the whole device, and thus improve the cabin passing accuracy. The storage box 4 can be used to store the removed locking cap 612. The lifting assembly 5 includes square slots 51 on the inner walls of both sides of the support frame 1. A rotating shaft 52 is provided on both sides of the support frame 1 through bearing seats. A pair of gears 53 are symmetrically sleeved on both sides of the rotating shaft 52. A rack 54 is provided in the square slot 51 on one side of each gear 53. A guide rail 55 is provided in both square slots 51. Both racks 54 are slidably mounted on the guide rail 55. A motor 56 is provided on the outer wall of the support frame 1. The transmission end of the motor 56 is connected to one end of the rotating shaft 52. Cover plates 59 are provided on both sides of the support frame 1 corresponding to the square slots 51. Connecting frames 57 are provided on both racks 54. Lifting plates 58 are provided between the two connecting frames 57. Controller 510 is provided on one side of the support frame 1. Laser positioning module 3 and motor 56 are connected to controller 510. Referring to the attached diagrams in the instruction manual Figures 1-5 As shown, firstly, the square slot 51 in the lifting assembly 5 provides the mounting base for other components. The motor 56 provides the rotation power for the rotating shaft 52. The rotating shaft 52 drives the gears 53 on both sides to rotate synchronously. The gears 53 transmit power to the rack 54 through meshing, causing the racks 54 on both sides to rise and fall along the guide rail 55. Secondly, when the racks 54 on both sides move, they drive the lifting plate 58 to rise and fall through the connecting frame 57. The lifting plate 58 provides the mounting base for the cable clamping assembly 6. The cover plate 59 can protect the components in the square slot 51 on both sides of the support frame 1 from external environmental interference. The cable clamping assembly 6 includes a pair of fixed V-shaped clamps 61 symmetrically arranged on the upper and lower sides of the lifting plate 58. Each fixed V-shaped clamp 61 has a large U-shaped frame 62 on both sides of the lifting plate 58. Each large U-shaped frame 62 has a small U-shaped frame 63 inside. A pair of guide rails 64 are symmetrically arranged on the inner walls of both sides of the large U-shaped frame 62. The small U-shaped frame 63 is slidably arranged on the guide rails 64. A pair of oil reservoirs 65 are symmetrically arranged on both sides of the large U-shaped frame 62. Piston rods 66 are arranged on both sides of the small U-shaped frame 63 corresponding to the positions of the oil reservoirs 65. A piston 67 is arranged at the end of the piston rod 66 away from the small U-shaped frame 63. The piston 67 is slidably arranged in the oil reservoir 65. A spring 68 is arranged between the piston rod 66 and the oil reservoir 65. Each small U-shaped frame 63 has a connecting post 69 on one side. The right connecting post 69 is connected to a movable V-shaped clamp 610 via a hinge. The left connecting post 69 has a fixed post 611 on one side. The fixed post 611 passes through the movable V-shaped clamp 610 on the side away from the hinge and is connected to a locking cap 612 via a thread. Both the fixed V-shaped clamp 61 and the movable V-shaped clamp 610 are equipped with rubber pads 613. Referring to the attached diagrams in the instruction manual Figures 1-5 As shown, firstly, the fixed V-shaped clamps 61 located on the upper and lower sides of the lifting plate 58 in the cable clamping assembly 6 can cooperate with the movable V-shaped clamps 610 to clamp the upper and lower sides of the cable. The large U-shaped frame 62 on both sides of the lifting plate 58 of each fixed V-shaped clamp 61 provides an installation base for the small U-shaped frame 63. The guide rails 64 on the inner walls of both sides of the large U-shaped frame 62 provide guidance for the small U-shaped frame 63, ensuring the stability of the small U-shaped frame 63 during movement. Secondly, the extensibility of the spring 68 allows the movable V-shaped clamp 610 to adaptively adjust according to the specifications and dimensions of the cable. The oil reservoirs 65 on both sides of the large U-shaped frame 62 are used to store hydraulic oil. The piston rods 66 on both sides of the small U-shaped frame 63 can drive the piston 67 to slide within the oil reservoir 65. The piston 67 divides the space of the oil reservoir 65. The hydraulic oil in the oil reservoir 65 flows between the two chambers through the small hole on the piston 67, thereby generating a damping force, reducing the rebound speed of the spring 68, ensuring the stability of the small U-shaped frame 63 and the movable V-shaped clamp 610, and realizing stable clamping of the cable. In addition, the right connecting post 69 is connected to the movable V-shaped clamp 610 through a hinge, so that the movable V-shaped clamp 610 can rotate around the hinge to open or close. The fixed post 611 on the left connecting post 69 passes through the movable V-shaped clamp 610 and can be threaded to the locking cap 612 to realize the closing and locking of the movable V-shaped clamp 610. The rubber pads 613 on the fixed V-shaped clamp 61 and the movable V-shaped clamp 610 can prevent the cable from being pinched and reduce bumps.

[0022] Working Principle: When using the cable terminal insertion device in this substation, firstly, the laser positioning module 3 is used to determine the accurate position of the cable terminal insertion and to calibrate the entire device, improving insertion accuracy. Then, the cable is placed between the fixed V-shaped clamps 61 and the movable V-shaped clamps 610 on both sides of the lifting plate 58. After the movable V-shaped clamp 610 is subjected to cable pressure, it will drive the small U-shaped frame 63 to move along the guide rail 64 on the inner wall of the large U-shaped frame 62 through the connecting column 69. During the movement of the small U-shaped frame 63, the spring 68 is extended and retracted. The extensibility of the spring 68 allows the movable V-shaped clamp 610 to adaptively adjust according to the specifications and dimensions of the cable. It also drives the piston rod 66 and piston 67 to slide inside the oil reservoir 65. Piston 67 divides the space inside the oil reservoir 65 into two chambers. The hydraulic oil in the oil reservoir 65 will flow repeatedly from one chamber to another through different small holes on piston 67. During this process, the friction between the hole wall and the hydraulic oil and the internal friction between the hydraulic oil molecules will hinder the flow of hydraulic oil, thereby generating damping force, reducing the rebound speed of spring 68, and ensuring that the movable V-shaped clamp 610 and the fixed V-shaped clamp 61 cooperate stably to clamp the cable. The rubber pads 613 equipped on the fixed V-shaped clamp 61 and the movable V-shaped clamp 610 can effectively prevent the cable from being pinched and reduce the occurrence of collisions.

[0023] Once the cable is securely clamped on both sides, the controller 510 starts the motor 56, which drives the rotating shaft 52 to rotate. The rotating shaft 52 drives the gears 53 on both sides to rotate synchronously. The gears 53 transmit power to the rack 54 through meshing. The racks 54 on both sides drive the lifting plate 58 to rise along the guide rail 55 through the connecting frame 57, thereby raising the cable. When the lifting plate 58 reaches the appropriate height, the upper locking cap 612 is loosened and removed, and placed in the storage box 4. Then, the upper movable V-shaped clamp 610 is opened. At this time, the upper side of the cable is released, and the cable terminal insertion operation can begin, while the lower side remains clamped by the movable V-shaped clamp 610. The fixed V-shaped clamp 61 holds the cable in place to prevent accidental movement, which would increase processing time and the accident rate. After the operation on the upper side is completed, the locking cap 612 on the lower side is loosened and removed to release the lower side of the cable. The cable terminal insertion operation can then continue. After the insertion operation of the first cable is completed, the movable V-shaped clamp 610 is rotated around the hinge to realign with the fixed post 611. After the fixed post 611 passes through the mounting hole on the movable V-shaped clamp 610, the locking cap 612 is tightened to reset the movable V-shaped clamp 610. Then, the motor 56 is reversed by the controller 510 to lower the lifting plate 58. The same steps are then followed for the second cable.

[0024] 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 cable terminal installation device for substations, comprising: A support frame (1) is provided with a pair of support feet (2) symmetrically arranged on both sides of the bottom of the support frame (1), a laser positioning module (3) is provided on the top of the support frame (1), and a storage box (4) is provided on one side of the support frame (1). The feature is that: a lifting assembly (5) is provided inside the support frame (1), and a cable clamping assembly (6) is provided on the lifting assembly (5).

2. The cable terminal installation device in a substation according to claim 1, characterized in that: The lifting assembly (5) includes square grooves (51) on the inner walls of both sides of the support frame (1). A rotating shaft (52) is provided on both sides of the support frame (1) through bearing seats. A pair of gears (53) are symmetrically sleeved on both sides of the rotating shaft (52). A rack (54) is provided in the square groove (51) on one side of each gear (53). A guide rail (55) is provided in both square grooves (51). Both racks (54) are slidably mounted on the guide rail (55). A motor (56) is provided on the outer wall of the support frame (1). The transmission end of the motor (56) is connected to one end of the rotating shaft (52).

3. The cable terminal installation device in a substation according to claim 2, characterized in that: Cover plates (59) are provided on both sides of the support frame (1) corresponding to the square groove (51). Connecting frames (57) are provided on both racks (54). A lifting plate (58) is provided between the two connecting frames (57). A controller (510) is provided on one side of the support frame (1). The laser positioning module (3), motor (56) and controller (510) are connected.

4. A cable terminal installation device in a substation according to claim 3, characterized in that: The cable clamping assembly (6) includes a pair of fixed V-shaped clamps (61) symmetrically arranged on the upper and lower sides of the lifting plate (58). Each fixed V-shaped clamp (61) has a large U-shaped frame (62) on both sides of the lifting plate (58). Each large U-shaped frame (62) has a small U-shaped frame (63) inside. A pair of guide rails (64) are symmetrically arranged on the inner walls of both sides of the large U-shaped frame (62). The small U-shaped frame (63) is slidably arranged on the guide rails (64).

5. A cable terminal installation device in a substation according to claim 4, characterized in that: A pair of oil reservoirs (65) are symmetrically arranged on both sides of the large U-shaped frame (62). Piston rods (66) are arranged on both sides of the small U-shaped frame (63) corresponding to the positions of the oil reservoirs (65). A piston (67) is arranged at the end of the piston rod (66) away from the small U-shaped frame (63). The piston (67) is slidably arranged in the oil reservoir (65). A spring (68) is arranged between the piston rod (66) and the oil reservoir (65).

6. A cable terminal installation device in a substation according to claim 5, characterized in that: Each of the small U-shaped frames (63) is provided with a connecting post (69) on one side. The connecting post (69) on the right side is connected to a movable V-shaped clamp (610) via a hinge. The connecting post (69) on the left side is provided with a fixed post (611). The fixed post (611) passes through the movable V-shaped clamp (610) on the side away from the hinge and is connected to a locking cap (612) via a thread. Both the fixed V-shaped clamp (61) and the movable V-shaped clamp (610) are provided with rubber pads (613).

Images