Extra-high voltage direct current line pin repairing tool

Abstract

The invention relates to an extra-high-voltage direct-current line pin repairing tool. The extra-high-voltage direct-current line pin repairing tool comprises an insulating rod, a driving mechanism, a pin positioning mechanism, a screw positioning mechanism, a camera shooting mechanism, a manipulator and a displayer. Wherein the driving mechanism is arranged at the far end of the insulating rod. And the pin positioning mechanism is arranged on the driving mechanism and is used for fixedly holding a pin. And the screw positioning mechanism is connected with the pin positioning mechanism and is used for fixedly holding the screw. The camera shooting mechanism is arranged on the driving mechanism and used for obtaining an image of the screw fixedly held on the screw positioning mechanism. And the manipulator is arranged at the near end of the insulating rod and is used for controlling the driving mechanism to drive the pin to be separated from the pin positioning mechanism and inserted into the pin hole of the screw rod. The displayer is arranged at the near end of the insulating rod and used for displaying images obtained by the camera shooting mechanism. The extra-high voltage direct current line pin repairing tool can improve the safety of pin repairing operation.

Description

Technical Field

[0001] The present application relates to the technical field of power transmission line maintenance tools, and in particular to a tool for installing pins on an ultra-high voltage DC line. Background Art

[0002] V-shaped insulator strings refer to two V-shaped insulator strings in the transmission line, with the lower end hanging the conductor and the upper end hanging on the tower. The main function of the V-shaped insulator string is to limit the swing of the insulator string under the action of wind, thereby reducing the size of the tower head and the width of the line corridor. The adjustment plate of the V-shaped insulator string needs to be installed and fixed by bolts. In order to enhance the stability of the bolt, a pin is also inserted on the bolt.

[0003] However, V-shaped insulator strings are exposed to the natural environment for a long time. They not only have to bear the full tension of the conductors, but also have to withstand external damage such as dirt, lightning strikes, and strong winds. This can easily cause the pins on the bolts to loosen or fall off. If they are not reinstalled in time, various faults may develop, posing a threat to the safety and stable operation of the power system. In the relevant technical guidelines, it is usually the staff who go down to the adjustment plate and insert new pins into the bolts to be installed. However, due to the long adjustment plate, narrow width, and steep slope, it is difficult for operators to reach the work point to reinstall the pins. At the same time, the tension of the V-shaped insulator string is small, and the adjustment plate is easy to shake. It is difficult for operators to control balance after going down to the adjustment plate, which can easily lead to the risk of falling for operators and cannot guarantee the personal safety of operators.‌ Summary of the invention

[0004] Based on this, it is necessary to provide a UHV DC line pin replacement tool to improve the safety of pin replacement operations.

[0005] The present application provides a tool for installing pins of an ultra-high voltage DC line, comprising:

[0006] an insulating rod, the insulating rod having a distal end and a proximal end disposed opposite to each other,

[0007] A driving mechanism, wherein the driving mechanism is arranged at the distal end of the insulating rod;

[0008] A pin positioning mechanism, the pin positioning mechanism is arranged on the driving mechanism, and the pin positioning mechanism is used to hold the pin;

[0009] A screw positioning mechanism, the screw positioning mechanism is connected to the pin positioning mechanism, and the screw positioning mechanism is used to hold the screw;

[0010] A camera mechanism, the camera mechanism being disposed on the driving mechanism and being used to acquire an image of a screw held on the screw positioning mechanism;

[0011] A manipulator, the manipulator is disposed at the proximal end of the insulating rod, the manipulator is in communication connection with the driving mechanism, and the manipulator is used to control the driving mechanism so that the driving mechanism drives the pin to disengage from the pin positioning mechanism and insert into the pin hole of the screw rod;

[0012] A display is arranged at the proximal end of the insulating rod, the display is communicatively connected with the camera mechanism, and the display is used to display the image acquired by the camera mechanism.

[0013] The technical solution is further described below:

[0014] In one embodiment, the driving mechanism is rotatably connected to the distal end of the insulating rod, and the driving mechanism can rotate around an axial direction perpendicular to the insulating rod.

[0015] In one embodiment, the driving mechanism comprises:

[0016] A box body, the box body is connected to the distal end of the insulating rod, and the pin positioning mechanism and the camera mechanism are both arranged on the box body;

[0017] A driving member, the driving member is disposed in the box body, and the driving member is electrically connected to the manipulator;

[0018] A push rod, one end of which is connected to the output shaft of the driving member, and the other end of which is used to abut against the pin. The push rod is used to drive the pin to disengage from the pin positioning mechanism and insert into the pin hole of the screw rod under the drive of the driving member.

[0019] In one embodiment, the pin positioning mechanism comprises:

[0020] A bracket, wherein the bracket is fixed on the box body;

[0021] A clamping member is provided with a fixing hole for accommodating the pin, the fixing hole is arranged opposite to the push rod, and the push rod can penetrate into the fixing hole under the drive of the driving member to push the pin in the fixing hole out.

[0022] In one embodiment, the fixing hole is an elongated hole, the clamp is rotatably connected to the bracket, and the clamp has a fixing position for fixing the pin and an escape position for the pin to pass through;

[0023] The pin positioning mechanism also includes a connecting rod assembly, which is connected to the clamping member and cooperates with the push rod. The connecting rod assembly can drive the clamping member to rotate from a fixed position to an avoidance position under the drive of the push rod.

[0024] In one embodiment, the connecting rod assembly includes:

[0025] A pressing block, the pressing block is connected to the push rod and can move synchronously with the push rod, and the pressing block has an inclined surface;

[0026] A slide rod, which is axially movable and penetrates the bracket, and one end of the slide rod is in contact with the inclined surface;

[0027] A connecting rod, one end of which is fixedly connected to the sliding rod;

[0028] A swing rod, one end of which is rotatably connected to the connecting rod, and the other end of which is rotatably connected to the clamping member.

[0029] In one of the embodiments, the bracket is further provided with an in-place sensor, and the in-place sensor is in communication connection with the driving member. When the pressure block abuts against the in-place sensor, the in-place sensor controls the driving member to stop driving the push rod.

[0030] In one of the embodiments, the screw positioning mechanism includes the fixing clamp, one end of which is connected to the bracket, and the fixing clamp is formed with a fixing groove for the screw to penetrate and fix the screw; a groove wall on one side of the fixing groove away from the bracket is provided with an avoidance groove for avoiding the pin, and the avoidance groove is arranged opposite to the fixing hole.

[0031] In one of the embodiments, a hook is provided on the side wall of the insulating rod, and the hook is used to be hung on a conductor of a power transmission line.

[0032] In one embodiment, the insulating rod comprises a plurality of sub-rods, each of which is detachably connected to the other; and / or the insulating rod is a telescopic rod.

[0033] In the above-mentioned UHV DC line pin reinstallation tool, a driving mechanism, a pin positioning mechanism, a screw positioning mechanism and a camera mechanism are arranged at the far end of the insulating rod, and a controller and a display are arranged at the near end of the insulating rod. In this way, the pin is fixed by the pin positioning mechanism and the screw positioning mechanism is fixed by the screw. The worker can stand on the pole tower or the ground and control the driving mechanism through the controller so that the driving mechanism drives the pin to disengage from the pin positioning mechanism and insert it into the pin hole of the screw to complete the pin reinstallation work, reducing the risk of falling of the worker during high-altitude operation and ensuring the personal safety of the worker. In addition, during the reinstallation work, the worker can observe the relative position image of the pin and the screw obtained by the camera mechanism in real time through the display so as to make timely adjustments, thereby improving the accuracy of pin reinstallation and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0037] Figure 1 The present invention is a schematic structural diagram of a UHV DC line pin repair tool according to one embodiment.

[0038] Figure 2 The present invention is a front view of a distal mechanism of a UHV DC line pin repairing tool according to an embodiment.

[0039] Figure 3 for Figure 2 An axonometric view of the distal mechanism shown in .

[0040] Figure 4 for Figure 2 Schematic diagram of the structure of the remote mechanism shown in FIG. 1 after the camera mechanism is hidden from another viewing angle.

[0041] Figure 5 for Figure 4 A partial enlarged view of the part A shown in .

[0042] Description of reference numerals:

[0043] 10. Insulating rod; 11. Hook; 20. Driving mechanism; 21. Box; 22. Driving member; 23. Push rod; 30. Pin positioning mechanism; 31. Bracket; 32. Clamp; 321. Fixing hole; 33. Connecting rod assembly; 331. Press block; 332. Sliding rod; 333. Connecting rod; 334. Rocker; 34. In-position sensor; 40. Screw positioning mechanism; 41. Fixing clamp; 411. Fixing slot; 412. Avoiding slot; 50. Camera mechanism; 60. Controller; 70. Display; 80. Pin; 90. Screw. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0050] An embodiment of the present application provides a UHV DC line pin reinstallation tool, which is used to reinstall pins on screw rods on transmission lines. It is understandable that the UHV DC line pin reinstallation tool can also be used to reinstall pins on screw rods in other occasions. Furthermore, the type of pin to be reinstalled can be a cylindrical pin or a cotter pin, etc., which is not limited here.

[0051] Specifically, see Figure 1 , Figure 1The schematic diagram of the structure of a UHV DC line pin repair tool according to an embodiment of the present application is shown. Specifically, the UHV DC line pin repair tool according to an embodiment includes an insulating rod 10, a driving mechanism 20, a pin positioning mechanism 30, a screw positioning mechanism 40, a camera mechanism 50, a manipulator 60 and a display 70. The insulating rod 10 has a distal end and a proximal end disposed opposite to each other. The driving mechanism 20 is disposed at the distal end of the insulating rod 10. The pin positioning mechanism 30 is disposed on the driving mechanism 20, and the pin positioning mechanism 30 is used to hold the pin 80. The screw positioning mechanism 40 is connected to the pin positioning mechanism 30, and the screw positioning mechanism 40 is used to hold the screw 90. The camera mechanism 50 is disposed on the driving mechanism 20, and the camera mechanism 50 is used to obtain an image of the screw 90 held on the screw positioning mechanism 40. The manipulator 60 is disposed at the proximal end of the insulating rod 10, and the manipulator 60 is connected in communication with the driving mechanism 20. The manipulator 60 is used to control the driving mechanism 20 so that the driving mechanism 20 drives the pin 80 to disengage from the pin positioning mechanism 30 and insert it into the pin hole of the screw rod 90. The display 70 is disposed at the proximal end of the insulating rod 10, and the display 70 is connected in communication with the camera mechanism 50. The display 70 is used to display the image acquired by the camera mechanism 50.

[0052] Specifically, when the pin 80 needs to be reinstalled, the staff can stand on the pole tower or the ground, first fix the pin 80 to be reinstalled to the pin positioning mechanism 30, then hold the proximal end of the insulating rod 10, extend the distal end of the insulating rod 10 to the screw 90 to which the pin 80 needs to be reinstalled, and observe the image obtained by the camera mechanism 50 through the display 70, and use the image to assist in placing the screw 90 to which the pin 80 needs to be reinstalled into the screw positioning mechanism 40 and aligning the pin hole of the screw 90 with the pin 80. Then, the driving mechanism 20 is controlled by the manipulator 60 to work, so that the driving mechanism 20 drives the pin 80 to disengage from the pin positioning mechanism 30 and insert it into the pin hole of the screw 90. In this process, by observing the process of the pin 80 being inserted into the pin hole of the screw 90 in real time, when the pin 80 is inserted into place, the screw 90 can be withdrawn from the screw positioning mechanism 40, thereby completing the reinstallation of the pin 80.

[0053] In the above-mentioned UHV DC line pin replacement tool, a driving mechanism 20, a pin positioning mechanism 30, a screw positioning mechanism 40 and a camera mechanism 50 are arranged at the far end of the insulating rod 10, and a controller 60 and a display 70 are arranged at the proximal end of the insulating rod 10. In this way, the pin positioning mechanism 30 is used to hold the pin 80, and the screw positioning mechanism 40 is used to hold the screw 90. The staff can stand on the tower or the ground and control the driving mechanism 20 through the controller 60, so that the driving mechanism 20 drives the pin 80 to disengage from the pin positioning mechanism 30 and insert it into the pin hole of the screw 90, thereby completing the replacement of the pin 80, reducing the risk of falling of the staff during high-altitude operations, and ensuring the personal safety of the staff. In addition, during the replacement work, the staff can observe the relative position image of the pin 80 and the screw 90 obtained in real time by the camera mechanism 50 through the display 70, so as to make timely adjustments, thereby improving the accuracy of the replacement of the pin 80 and improving work efficiency.

[0054] Optionally, in one embodiment, the driving mechanism 20 is rotatably connected to the distal end of the insulating rod 10, and the driving mechanism 20 can rotate around an axial direction perpendicular to the insulating rod 10. Exemplarily, the driving mechanism 20 can be rotatably connected to the distal end of the insulating rod 10 via a rotating shaft or a hinge, and by rotating the driving mechanism 20, the angles of the pin positioning mechanism 30 and the screw positioning mechanism 40 can be adjusted, thereby ensuring that the screw positioning mechanism 40 can be accurately fixed to the screw 90 that needs to be supplemented with the pin 80, and also ensuring that the pin 80 on the pin positioning mechanism 30 can be aligned with the pin hole on the screw 90.

[0055] See also Figure 2 as well as Figure 3 Optionally, in one embodiment, the driving mechanism 20 includes a housing 21, a driving member 22, and a push rod 23, wherein the housing 21 is connected to the distal end of the insulating rod 10, and the pin positioning mechanism 30 and the camera mechanism 50 are both arranged on the housing 21; the driving member 22 is arranged in the housing 21, and the driving member 22 is electrically connected to the manipulator 60; one end of the push rod 23 is connected to the output shaft of the driving member 22, and the other end of the push rod 23 is used to abut against the pin 80, and the push rod 23 is used to drive the pin 80 to disengage from the pin positioning mechanism 30 and insert into the pin hole of the screw 90 under the drive of the driving member 22. In this way, the manipulator 60 controls the driving member 22 to drive the push rod 23 to extend, so that the push rod 23 can push the pin 80 to disengage from the pin positioning mechanism 30 and insert into the pin hole of the screw 90. Exemplarily, the driving member 22 can be a telescopic cylinder or an electric push rod.

[0056] See also Figure 4 as well as Figure 5In one embodiment, the pin positioning mechanism 30 includes a bracket 31 and a clamping member 32, wherein the bracket 31 is fixed to the box body 21. The clamping member 32 is provided with a fixing hole 321 for accommodating the pin 80, and the fixing hole 321 is arranged opposite to the push rod 23. The push rod 23 can penetrate into the fixing hole 321 under the drive of the driving member 22 to push out the pin 80 in the fixing hole 321.

[0057] Exemplarily, the bracket 31 includes a column and a crossbar, the column and the crossbar are connected in an L-shaped structure, the crossbar is provided with a through installation groove, and the clamp 32 is arranged in the installation groove. Further, the clamp 32 is a disc structure, and the fixing hole 321 is throughly opened in the center of the disc-shaped clamp 32. Before reinstallation, the pin 80 is inserted into the fixing hole 321 to preliminarily fix the pin 80. During the reinstallation process, the driving member 22 drives the push rod 23 to penetrate the fixing hole 321, so that the pin 80 can be pushed out of the fixing hole 321 and penetrate into the pin hole of the screw 90.

[0058] See also Figure 5 In one embodiment, the fixing hole 321 is a long hole, the clamping member 32 is rotatably connected to the bracket 31, and the clamping member 32 has a fixed position for fixing the pin 80 and an escape position for the pin 80 to pass through; the pin positioning mechanism 30 also includes a connecting rod assembly 33, the connecting rod assembly 33 is connected to the clamping member 32 and cooperates with the push rod 23, and the connecting rod assembly 33 can drive the clamping member 32 to rotate from the fixed position to the escape position under the drive of the push rod 23.

[0059] Specifically, in the present embodiment, the pin 80 is a cotter pin, and the pin 80 includes a main body and a tail end, and the width of the tail end is greater than the width of the main body. When the clamp 32 fixes the pin 80, the main body is inserted into the fixing hole 321, and the width of the tail end is greater than the width of the fixing hole 321 and less than the length of the fixing hole 321. When the clamp 32 is in a fixed position, the length direction of the fixing hole 321 intersects with the width direction of the tail end of the pin 80, for example, they are perpendicular to each other. At this time, the tail end of the pin 80 cannot pass through the fixing hole 321, and the pin 80 is limited in the fixing hole 321, thereby preventing the pin 80 from falling off when the distal end of the insulating rod 10 extends toward the screw 90. After the screw positioning mechanism 40 fixes the screw 90, the push rod 23, driven by the driving member 22, pushes the pin 80 to be inserted into the pin hole of the screw 90. During this process, the push rod 23 drives the connecting rod assembly 33, and the connecting rod assembly 33 drives the clamping member 32 to rotate to the avoidance position, so that the length direction of the long hole is consistent with the width direction of the tail end of the pin 80. At this time, the tail end of the pin 80 can smoothly pass through the fixing hole 321, ensuring that the pin 80 can be detached from the clamping member 32 and penetrate into the pin hole of the screw 90.

[0060] Continue to see Figures 2 to 5In one embodiment, the connecting rod assembly 33 includes a pressure block 331, a sliding rod 332, a connecting rod 333 and a rocker rod 334, wherein the pressure block 331 is connected to the push rod 23 and can move synchronously with the push rod 23, the pressure block 331 has an inclined surface, the sliding rod 332 is axially movably arranged on the bracket 31, and one end of the sliding rod 332 is in contact with the inclined surface, one end of the connecting rod 333 is fixedly connected to the sliding rod 332, one end of the rocker rod 334 is rotatably connected to the connecting rod 333, and the other end of the rocker rod 334 is rotatably connected to the clamping member 32.

[0061] Specifically, when the push rod 23 is driven by the driving member 22 to push the pin 80 to move in the direction of the pin hole for inserting the screw rod 90, the pressure block 331 moves synchronously, so that the inclined surface of the pressure block 331 squeezes the sliding rod 332, and the sliding rod 332 moves laterally away from the push rod 23, and drives the connecting rod 333 to move synchronously. When the connecting rod 333 moves laterally away from the push rod 23, it drives the swing rod 334 to swing, and then the swing drives the clamping member 32 to rotate, and finally the clamping member 32 is rotated to the avoidance position as the push rod 23 moves, so as to ensure that the tail end of the pin 80 can smoothly pass through the fixing hole 321.

[0062] See also Figure 2 In one embodiment, the bracket 31 is further provided with an in-position sensor 34, which is in communication connection with the driving member 22, and the pressing block 331 abuts against the in-position sensor 34, and the in-position sensor 34 controls the driving member 22 to stop driving the push rod 23. Specifically, according to the depth of the push rod 23 required to be inserted into the pin hole, the position of the in-position sensor 34 is reasonably arranged, so that when the push rod 23 is driven by the driving member 22 to push the pin 80 to the preset position, the pressing block 331 can touch the in-position sensor 34, thereby controlling the driving member 22 to stop driving the push rod 23, thereby preventing the push rod 23 from extending beyond the stroke, and ensuring that the pin 80 is accurately inserted into the position.

[0063] See also Figure 3 The screw positioning mechanism 40 includes a fixing clamp 41, one end of which is connected to the bracket 31, and the fixing clamp 41 is formed with a fixing groove 411 for the screw 90 to penetrate and fix the screw 90; the groove wall on one side of the fixing groove 411 away from the bracket 31 is provided with an avoidance groove 412 for avoiding the pin 80, and the avoidance groove 412 is arranged opposite to the fixing hole 321.

[0064] Exemplarily, the fixing clip 41 is in a U-shaped structure as a whole, and includes an open end and a closed end arranged opposite to each other. The open end of the fixing clip 41 is fixed to the bracket 31. When the pin 80 is installed, the screw 90 is inserted into the fixing groove 411 and abuts against the groove wall of the fixing groove 411 near the fixing end, thereby fixing the screw 90 and preventing the screw 90 from shaking during the process of the pin 80 inserting into the pin hole of the screw 90. Furthermore, by providing an avoidance groove 412 on the groove wall of the fixing groove 411 away from the bracket 31, one end of the pin 80 can enter the avoidance groove 412 after passing through the pin hole, avoiding being blocked by the groove wall of the fixing groove 411, thereby ensuring that the pin 80 can be inserted into place.

[0065] See also Figure 1 In one embodiment, a hook 11 is provided on the side wall of the insulating rod 10, and the hook 11 is used to be hooked on the conductor of the transmission line. Specifically, during the process of reinstalling the pin 80, the hook 11 can be used to hang the UHV DC line pin reinstallation tool on the conductor as a whole, so that the operation can be more labor-saving.

[0066] Optionally, in one embodiment, the insulating rod 10 includes multiple sub-rods, each of which is detachably connected, so that the length of the insulating rod 10 can be adjusted by reasonably selecting the number of sub-rods to be installed according to the distance of the screw rod 90 to be supplemented with the pin 80, so as to facilitate operation. In another embodiment, the insulating rod 10 can also be a telescopic rod, so that the length of the insulating rod 10 can be flexibly adjusted through telescopic operation to adapt to the screw rod 90 to be supplemented with the pin 80 at different distances.

[0067] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A tool for installing pins of ultra-high voltage DC lines, characterized in that: include: an insulating rod, the insulating rod having a distal end and a proximal end disposed opposite to each other, A driving mechanism, wherein the driving mechanism is arranged at the distal end of the insulating rod; A pin positioning mechanism, the pin positioning mechanism is arranged on the driving mechanism, and the pin positioning mechanism is used to hold the pin; A screw positioning mechanism, the screw positioning mechanism is connected to the pin positioning mechanism, and the screw positioning mechanism is used to hold the screw; A camera mechanism, the camera mechanism being disposed on the driving mechanism and being used to acquire an image of a screw held on the screw positioning mechanism; A manipulator, the manipulator is disposed at the proximal end of the insulating rod, the manipulator is in communication connection with the driving mechanism, and the manipulator is used to control the driving mechanism so that the driving mechanism drives the pin to disengage from the pin positioning mechanism and insert into the pin hole of the screw rod; A display is arranged at the proximal end of the insulating rod, the display is communicatively connected with the camera mechanism, and the display is used to display the image acquired by the camera mechanism.

2. The UHV DC line pin repair tool according to claim 1, characterized in that: The driving mechanism is rotatably connected to the distal end of the insulating rod, and the driving mechanism can rotate around an axial direction perpendicular to the insulating rod.

3. The UHV DC line pin repair tool according to claim 1, characterized in that: The driving mechanism comprises: A box body, the box body is connected to the distal end of the insulating rod, and the pin positioning mechanism and the camera mechanism are both arranged on the box body; A driving member, the driving member is disposed in the box body, and the driving member is electrically connected to the manipulator; A push rod, one end of which is connected to the output shaft of the driving member, and the other end of which is used to abut against the pin. The push rod is used to drive the pin to disengage from the pin positioning mechanism and insert into the pin hole of the screw rod under the drive of the driving member.

4. The UHV DC line pin repair tool according to claim 3, characterized in that: The pin positioning mechanism comprises: A bracket, wherein the bracket is fixed on the box body; A clamping member is provided with a fixing hole for accommodating the pin, the fixing hole is arranged opposite to the push rod, and the push rod can penetrate into the fixing hole under the drive of the driving member to push the pin in the fixing hole out.

5. The UHV DC line pin repair tool according to claim 4, characterized in that: The fixing hole is a long hole, the clamp is rotatably connected to the bracket, and the clamp has a fixing position for fixing the pin and an escape position for the pin to pass through; The pin positioning mechanism also includes a connecting rod assembly, which is connected to the clamping member and cooperates with the push rod. The connecting rod assembly can drive the clamping member to rotate from a fixed position to an avoidance position under the drive of the push rod.

6. The UHV DC line pin repair tool according to claim 5, characterized in that: The connecting rod assembly comprises: A pressing block, the pressing block is connected to the push rod and can move synchronously with the push rod, and the pressing block has an inclined surface; A slide rod, which is axially movable and penetrates the bracket, and one end of the slide rod is in contact with the inclined surface; A connecting rod, one end of which is fixedly connected to the sliding rod; A swing rod, one end of which is rotatably connected to the connecting rod, and the other end of which is rotatably connected to the clamping member.

7. The UHV DC line pin repair tool according to claim 6, characterized in that: The bracket is also provided with an in-place sensor, which is in communication connection with the driving member. When the pressing block abuts against the in-place sensor, the in-place sensor controls the driving member to stop driving the push rod.

8. The UHV DC line pin repair tool according to claim 4, characterized in that: The screw positioning mechanism includes a fixing clamp, one end of which is connected to the bracket, and the fixing clamp is formed with a fixing groove for the screw to penetrate and fix the screw; a groove wall on one side of the fixing groove away from the bracket is provided with an avoidance groove for avoiding the pin, and the avoidance groove is arranged opposite to the fixing hole.

9. The UHV DC line pin repair tool according to claim 1, characterized in that: The side wall of the insulating rod is provided with a hook, and the hook is used to be hung on the conductor of the power transmission line.

10. The UHV DC line pin repair tool according to claim 1, characterized in that: The insulating rod comprises a plurality of sub-rods, each of which is detachably connected to the other; and / or the insulating rod is a telescopic rod.

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