CN-115313240-B - Insulator unlocking and locking driving part and power transmission line insulator replacing device

CN115313240BCN 115313240 BCN115313240 BCN 115313240BCN-115313240-B

Abstract

The invention discloses an insulator unlocking and locking driving part and a power transmission line insulator replacing device, wherein the driving part comprises two groups of clamping blocks capable of generating opening and closing actions to clamp one end of an insulator string, mounting seats are symmetrically arranged on the two groups of clamping blocks, sliding grooves are formed in the mounting seats along the moving direction of w pins at two ends of the insulator string, the driving sliding blocks are arranged in the sliding grooves and can be driven by a power source to slide along the length direction of the sliding grooves, and the sliding track of the driving sliding blocks is intersected with the moving track of the w pins at two ends of the insulator string, so that the w pins at two ends of the insulator string can be pushed to be switched under the locking and unlocking states. The invention can automatically unlock and lock the insulator string on the transmission line, can complete the operations of automatically unlocking, replacing and locking the insulator string, and has high replacement efficiency and low operation risk.

Inventors

ZHANG MING
LIANG HUAYIN
Qiu Shoudong
LI QINGXING
WANG YANGANG
WU WEI
LI QIANG
WU XIANG
YE HUI
HAO WENBO
YAN BO
ZHAO XUEHUI
ZHANG YONG
XIA HUADONG
LIAO ZHIBIN
QIN XIAOLIN
HUANG XIA
LI XIN

Assignees

国网安徽省电力有限公司宿州供电公司

Dates

Publication Date: 20260512
Application Date: 20220629

Claims (6)

1. Transmission line insulator changing device, its characterized in that includes: the fixed platform (1) is connected and fixed with the power transmission tower; the two ends of the insulator string (5) are respectively connected with the power transmission tower and the cable (7) through connecting accessories; The lifting assembly (6) is arranged on the fixed platform (1) and is used for applying lifting action to the cable (7) so as to enable the insulator string (5) to be replaced to enter a loose state; The replacing assemblies (3) are arranged on the fixed platform (1) and are at least provided with two groups, one group of the replacing assemblies (3) is empty so as to clamp and detach the insulator string (5) to be replaced, the other group of the replacing assemblies (3) is pre-clamped with a new insulator string (5), the replacing assemblies (3) comprise connecting arms (31), and two ends of each connecting arm (31) are fixed with driving parts (32) through bases (321); The driving part (32) comprises two groups of clamping blocks (322) which execute opening and closing actions to clamp one end of the insulator string (5), mounting seats (323) are symmetrically arranged on the two clamping blocks (322), sliding grooves (3232) are formed in the mounting seats (323) along the moving direction of w pins at two ends of the insulator string (5), the driving sliding blocks (324) are arranged in the sliding grooves (3232) and driven by a power source to slide along the length direction of the sliding grooves (3232), and the driving sliding blocks (324) and w pins at the end parts of the insulator string (5) are positioned on the same straight line, so that the w pins at two ends of the insulator string (5) are pushed to be switched under locking and unlocking states; The clamping surfaces of the two clamping blocks (322) are concavely provided with cambered surface-shaped positioning grooves (3222), an annular cavity is formed after the two positioning grooves (3222) are folded to position the insulator string (5), the axis of the annular cavity is parallel to the axis of the insulator string (5), the contact surface of the positioning grooves (3222) and the insulator string (5) is provided with driving wheels (3221) with the axis parallel to the axis of the insulator string (5), and the two driving wheels (3221) are oppositely arranged and drive the insulator string (5) to rotate around the axis of the driving wheels through rotary friction; a driving gear (3231) is arranged in the mounting seat (323), a sliding block rack meshed with the driving gear (3231) is arranged on the driving sliding block (324) along the length direction of the driving gear, the driving gear (3231) drives the driving sliding block (324) to slide along the sliding groove (3232) through the matching of the gear and the rack, and the driving gear (3231) is a power source; The two clamping blocks (322) are arranged on the base (321), a guide groove is formed in the base (321) along the length direction of the base, and an air cylinder is arranged in the base (321) to drive the two clamping blocks (322) to move in opposite directions or back directions along the guide groove so as to enable the two clamping blocks (322) to generate opening and closing clamping actions; the disassembly and replacement manipulator (2) is arranged on the fixed platform (1) and drives the two replacement assemblies (3) to leave or enter the working point of the insulator string (5).
2. The power transmission line insulator replacement device according to claim 1, wherein the power transmission tower is connected with the upper end of the insulator string (5) through an upper connecting accessory (9), a first bowl groove (512) is formed in an insulator upper ball bowl (51) at the top of the insulator string (5), a first bowl groove inlet is formed in the first bowl groove (512) along the horizontal direction so that an accessory ball head (91) connected with the accessory (9) is clamped into the first bowl groove (512), a first w pin (511) is in sliding fit with the first bowl groove (512) in the first bowl groove (512), the first w pin (511) is abutted with the accessory ball head (91) in the first bowl groove (512) so as to prevent the accessory ball head (91) from exiting the first bowl groove (512), and the first w pin (511) exits the first bowl groove (512) so as to avoid the accessory ball head (91) in a position so that the accessory ball head (91) exits the first bowl groove (512); The insulator chain (5) lower end is connected with the cable (7) through a lower connection accessory (8), a second bowl groove (811) is formed in an accessory ball bowl (81) of the lower connection accessory (8), a second bowl groove inlet is formed in the second bowl groove (811) along the horizontal direction so that an insulator lower ball (52) at the lower end of the insulator chain (5) is clamped into the second bowl groove (811), a second w pin (812) is in sliding fit with the second bowl groove (811) in the second bowl groove (811), the second w pin (812) is in abutting connection with the insulator lower ball (52) in the second bowl groove (811) so as to prevent the insulator lower ball (52) from exiting the second bowl groove (811), and the second w pin (812) exits the second bowl groove (811) so as to be away from the insulator lower ball (52) in position so that the insulator lower ball (52) exits the second bowl groove (811).
3. The power transmission line insulator replacement device according to claim 2, wherein the fixed platform (1) is provided with a first clamping arm (11), the first clamping arm (11) is hydraulically driven to perform opening and closing actions to clamp and fix the upper connecting accessory (9), the fixed platform (1) is provided with a positioning manipulator (4), a driving end of the positioning manipulator (4) is connected with a second clamping arm (411) through a fixed cantilever (41), and the second clamping arm (411) is hydraulically driven to perform opening and closing actions to clamp and fix the lower connecting accessory (8).
4. A transmission line insulator changing apparatus according to claim 3, wherein a connection disc (311) connected with the changing robot (2) is provided on the connection arm (31), and the changing robot (2) and the positioning robot (4) are six-axis robots.
5. The power transmission line insulator replacement device according to claim 1, wherein the lifting assembly (6) comprises an insulating fixing rod (61) which is arranged on the fixing platform (1) and is parallel to the insulator string (5), a sliding rail (62) is arranged on the insulating fixing rod (61) along the length direction of the rod, the lifting seat (63) is arranged on the sliding rail (62) and is driven by a driving source to slide along the length direction of the sliding rail (62), the lifting seat (63) is provided with a containing groove (632), the shifting block (631) is hinged and matched with the containing groove (632) so as to be contained in the containing groove (632) or pop out from the containing groove (632), and when the shifting block (631) is located in the containing groove (632), the movement track is dodged from the position of the cable (7), and when the shifting block (631) is located outside the containing groove (632), the movement track is intersected with the position of the cable (7).
6. The power transmission line insulator replacement device according to claim 5, wherein a telescopic rod (64) which is arranged in parallel with the insulating fixing rod (61) is further fixed on the fixing platform (1), the driving end of the telescopic rod (64) is connected with the lifting seat (63) to drive the lifting seat (63) to move along the sliding rail (62), the telescopic rod (64) is a driving source, the lifting assemblies (6) are divided into two groups and symmetrically arranged on two sides of the lower connecting accessory (8), and the shifting block (631) is in a claw shape with an upward tip.

Description

Insulator unlocking and locking driving part and power transmission line insulator replacing device Technical Field The invention relates to the field of electric power, in particular to an insulator unlocking and locking driving part and a power transmission line insulator replacing device. Background Insulators are devices that are mounted between conductors of different electrical potential or between a conductor and a grounded member, and are capable of withstanding voltage and mechanical stress. Since insulator strings are at risk of aging and damage, periodic maintenance and replacement is required. At present, when changing the insulator, need the manual work to carry a large amount of instruments to just can carry out unblock, change, locking operation to the insulator chain in the high altitude after climbing for a long time along the transmission tower, because the instrument that this process was used is too much, influences electric power workman's removal and change operation, and because some insulator chain is installed under the incline condition, further improved electric power workman unblock, change, the degree of difficulty of locking operation, change inefficiency, the operation risk is high, consequently need to solve. Disclosure of Invention In order to avoid and overcome the technical problems in the prior art, the invention provides an insulator unlocking and locking driving part. The invention can automatically unlock and lock the insulator string on the transmission line. The invention also provides a power transmission line insulator replacement device applying the insulator unlocking and locking driving part, which can complete the operations of automatic unlocking, replacement and locking of the insulator string, and has high replacement efficiency and low operation risk. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides an insulator unblock, locking drive division, this drive division includes two sets of clamp splice that can produce the action of opening and shutting in order to centre gripping insulator chain one end, two symmetrical arrangement has set up the mount pad on the clamp splice, has seted up the spout along the direction of motion of insulator chain both ends w round pin on the mount pad, and the drive slider is installed in the spout and can be driven it along spout groove length direction slip by the power supply, and the drive slider is located same straight line with the w round pin of insulator chain tip to can promote the w round pin at insulator chain both ends and switch under locking and unlocking state. The invention further provides a scheme that cambered surface-shaped positioning grooves are concavely formed on the clamping surfaces of the two clamping blocks, an annular cavity is formed after the two positioning grooves are folded to position the insulator string, the axis of the annular cavity is parallel to the axis of the insulator string, driving wheels with the axis parallel to the axis of the insulator string are arranged at the contact surface of the positioning grooves and the insulator string, and the two driving wheels are oppositely arranged and drive the insulator string to rotate around the axis of the insulator string through rotary friction. As a still further scheme of the invention, a driving gear is arranged in the mounting seat, a slide block rack meshed with the driving gear is arranged on the driving slide block along the length direction of the driving slide block, the driving gear drives the driving slide block to slide along the sliding groove through the cooperation of the gear and the rack, and the driving gear is a power source. The invention further provides a scheme that the two clamping blocks are arranged on the base, the base is provided with a guide groove along the length direction of the guide groove, an air cylinder is arranged in the base to drive the two clamping blocks to move in opposite directions or back directions along the guide groove so as to enable the two clamping blocks to generate opening and closing clamping actions, the clamping blocks are provided with a pneumatic sliding table along the length direction of the clamping blocks, and the pneumatic sliding table drives the mounting seat to move along the length direction of the sliding table and then be fixed, so that the driving sliding block and the w pin are positioned on the same straight line. An electric transmission line insulator replacing device applying an insulator unlocking and locking driving part is characterized by comprising: The fixed platform is fixedly connected with the power transmission tower; The two ends of the insulator string are respectively connected with the power transmission tower and the cable through connecting accessories; The lifting assembly is arranged on the fixed platform and can apply lifting action to the cable so as to enable t