CN107658783A - Debris rotatably removes specific purpose tool around a kind of power circuit - Google Patents

Abstract

The invention relates to a special rotary tool for removing sundries around power lines, which belongs to the technical field of electric equipment. The special tool includes an inner cleaning cylinder and an outer driving cylinder arranged concentrically. The power transmission line passes through the inner cleaning cylinder, and the lower end of the outer driving cylinder is installed There is a counterweight motor, the output end of which extends into the outer drive cylinder to drive the drive gear and the ring gear on the outer wall of the inner cleaning cylinder to rotate, and the inner cleaning cylinder drives the cutters on the outer circumference of both ends to rotate, forming an external obstacle for the transmission line The rotation of the inner cleaning cylinder drives the self-rotating gear at the outer end of the rotating shaft passing through its wall thickness to run along the guide gear on the inner wall of the outer driving cylinder, and the self-rotating gear drives the crushing mechanism through the rotating shaft to crush the attachments along the surface of the transmission line Work, the crushing mechanism includes a rotating shaft with a crushing knife at the end and a floating net cover fixed at the end by a spring. The invention can realize the cleaning work of the transmission line surface attachments, external hanging objects, and close objects.

Description

A special tool for rotary removal of sundries around power lines

technical field

The invention relates to the technical field of electric power equipment, in particular to a special rotary tool for removing sundries around power lines.

Background technique

The transmission line is an important part used to transmit power from the power station to the user unit. Whether it is in the city or in the field, many transmission lines will be erected for power transmission. Then, in daily work, there will inevitably be some obstacles around the transmission line. For example, surface adhesions, hanging objects such as kite strings and plastic bags, and growing objects such as branches, etc. If these obstacles are not cleaned up in time, it is very easy to cause the danger of short circuit or even line breakage, which will seriously affect people's lives. And production caused unnecessary losses.

At present, there are three traditional methods for removing foreign objects in the line: 1) The staff can use an insulating rod with a knife to stand on the ground and work on the high-altitude line; 2) In the case of electrification, the operator should wear shielding Enter the strong electric field from the soft ladder for manual removal; 3) When the power is off, the operator climbs to the foreign object through the soft ladder frame for manual removal. The first method, due to the limited length of the operating rod, may encounter places that cannot be cleaned during the operation, and this method is limited by the terrain; the second method requires a lot of manpower and material resources, and the operation procedures are complicated and dangerous. There are many points, and the targeted safety measures are cumbersome, which can easily lead to electric shock accidents due to mental paralysis, and the labor intensity is high and the reliability is low; the third method needs to be contacted and coordinated with the control center in advance to formulate a power outage plan and perform approval This kind of operation process makes it impossible to deal with defects in time, and the power outage operation greatly reduces the power consumption load, affects the power supply reliability of the transmission line, and reduces the transmission efficiency.

Contents of the invention

The present invention overcomes the disadvantages of the prior art and provides a special tool for removing sundries around the power line with a rotary type. With limited manpower and material resources, the work of clearing obstacles can be carried out stably and continuously, avoiding the untimely and incomplete clearing of obstacles.

Concrete technical scheme of the present invention is:

A special rotary tool for removing debris around power lines. The key point is that the special tool includes a concentric sleeve composed of an inner cleaning cylinder and an outer driving cylinder. The transmission line passes through the concentric sleeve in the axial direction, and the inner cleaning cylinder The length of the inner cleaning cylinder is greater than the length of the outer driving cylinder. A group of cutting units are arranged on both ends of the inner cleaning cylinder along the outer circumference. The cutting unit includes a connecting rod and a cutting knife fixed at its end, and a penetrating inner cleaning cylinder is arranged in the concentric sleeve. A set of rotating shafts with a thick wall, the end of the rotating shaft in contact with the transmission line is provided with a group of crushing knives uniformly distributed along the circumference, and the periphery of the crushing knives is provided with a mesh cover connected to the end of the rotating shaft by means of a spring; the internal cleaning Both the cylinder and the rotating shaft have the degree of freedom to rotate when driven by the driving mechanism, and the concentric sleeve has the degree of freedom to move horizontally along the power transmission line by means of the traveling mechanism; distance sensors are fixed at both ends of the driving cylinder, and the special tool is equipped with a control The signal output end of the distance sensor is connected with the signal input end of the controller, and the signal output end of the controller is connected with the control end of the driving motor.

The drive mechanism includes a counterweight motor fixed on the outer drive cylinder, a drive gear located inside the outer drive cylinder and connected to the output end of the counterweight motor, and a ring gear arranged along the outer wall of the inner cleaning cylinder and meshed with the drive gear, The rotating shaft is located on both sides of the ring gear and distributed along the circumference of the inner cleaning cylinder. The rotating shaft is provided with a self-rotating gear near the end of the outer driving cylinder, and the inner wall of the outer driving cylinder is provided with a guide gear meshing with the rotating gear. .

The walking mechanism includes two walking wheels located inside the inner cleaning cylinder and clamping the power transmission line in the middle. Grooves matching the outer contour of the power transmission line are arranged on the outer circumference of the walking wheels, and a driving wheel is fixed on the outer wall of the inner cleaning cylinder. motor, the output end of the driving motor is connected with the rotating shaft of a road wheel.

Rollers are installed on the end of the rotating shaft close to the outer drive cylinder, and the inner wall of the outer drive cylinder is provided with an annular guide groove used in conjunction with the rollers.

The crushing knife includes a rake face, a flank face, a cutting face connecting the bottom edge of the rake face and the bottom edge of the flank face and a terminal face at the end, the rake face is an inwardly concave arc surface, and the rear face Both the cutter surface and the cutting surface are outwardly convex arc surfaces, the end surface is the cross section of the crushing knife, and the angle between the rake surface and the cutting surface is the cutting edge and the angle is 10-30 degrees.

The net cover includes an arc-shaped bottom surface and an annular side surface fixed on its circumference. The arc-shaped bottom surface includes a circular mesh bar and a group of arc-shaped mesh bars located inside and arrayed along its center circle. All arc-shaped mesh bars A circular support plate is arranged at the intersection of the mesh bars, and the upper surface of the circular support plate is fixedly connected with the spring.

The cutting knife is circular and the outer circumference is a blade, the connecting rod is vertically fixed on the outer wall of the inner cleaning cylinder, and the cutting knife is vertically fixed on the outer end of the connecting rod.

The beneficial effects of the present invention are: the present invention respectively realizes the rotation work of the external cutting knife and the rotating work of the internal pulverizing knife through the rotation of the inner cleaning cylinder itself and the rotation of the rotating shaft, and the pulverizing knife cuts and pulverizes the attachments on the surface of the transmission line , so that the attachments are separated from the transmission line, and the net cover outside the pulverizer forms a protection unit for the pulverizer and the transmission line, and the working range of the pulverizer is controlled outside the transmission line, and the arc-shaped mesh bars in the net cover follow the grid. The rotation of the transmission line forms a rubbing loosening unit for the attachment on the surface of the transmission line, which reduces the greater density formed by the accumulation of the attachment. Better; the cutting knives at both ends of the inner cleaning cylinder rotate with the rotation of the inner cleaning cylinder, and the cutting knives arranged along the circumference form a cutting and cleaning unit for the external obstacles of the transmission line, which can cut and remove kite lines, branches and other items to avoid In order to avoid the influence of suspended objects or close objects on the transmission line, avoid potential dangers such as short circuit and breakage of the transmission line;

The present invention also provides a stable counterweight weight for the outer drive cylinder by setting the counterweight motor, thereby providing stable support for the power output of the counterweight motor, that is, providing stable support for the power source of the inner cleaning cylinder. Therefore, the external drive During the rotation of the inner cleaning cylinder, the counterweight motor is always kept at the bottom, and the outer driving cylinder forms the working principle of the tumbler;

The rotation of the inner cleaning cylinder is driven by the counterweight motor to rotate the driving gear. During the rotation of the inner cleaning cylinder, the rollers and the annular guide groove can not only play a supporting role, but also avoid friction between the inner cleaning cylinder and the outer driving cylinder. The state of gradually increasing and being stuck can also play a role of rotation guide for the inner cleaning cylinder, ensuring smooth rotation during operation and avoiding poor work; at the same time, it can also drive the self-rotating gear along the outer surface during the rotation of the inner cleaning cylinder. Drive the guide gear in the cylinder to move, thus forming the power source of the rotating shaft;

Description of drawings

Fig. 1 is a schematic diagram of the external structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

FIG. 3 is an enlarged schematic view of C in FIG. 2 .

Fig. 4 is a schematic cross-sectional structure diagram of A-A in Fig. 1 .

Fig. 5 is a schematic cross-sectional structure diagram of B-B in Fig. 1 .

Fig. 6 is a schematic diagram of the assembly structure of the rotating shaft, the crushing knife and the net cover in the present invention.

Fig. 7 is a schematic diagram of the assembly structure of the rotating shaft and the pulverizing knife in the present invention.

Fig. 8 is a schematic structural view of the pulverizing knife in Fig. 7 .

Fig. 9 is a structural schematic diagram of the arc-shaped bottom surface in the grille.

In the accompanying drawings, 1, inner cleaning cylinder, 2, outer driving cylinder, 3, power transmission line, 4, connecting rod, 401, cutting knife, 5, counterweight motor, 501, driving gear, 502, ring gear, 6, rotating Shaft, 601, guide gear, 602, self-rotating gear, 603, roller, 604, annular guide groove, 7, crushing knife, 701, rake face, 702, cutting face, 703, end face, 704, cutting edge, 8, Spring, 9, mesh cover, 901, arc-shaped bottom surface, 902, annular side, 903, circular mesh reinforcement, 904, arc-shaped mesh reinforcement, 905, circular support plate, 10, walking wheel, 11, driving motor, 12. Solar panel, 13. Lithium battery, 14. Distance sensor, 15. Controller.

Detailed ways

The invention relates to a special tool for removing sundries around power lines with a rotary type. The special tool includes a concentric sleeve composed of an inner cleaning cylinder 1 and an outer driving cylinder 2. The power transmission line 3 passes through the concentric sleeve in the axial direction. The length of the cleaning cylinder 1 is greater than the length of the outer driving cylinder 2, and a group of cutting units are arranged on the two ends of the inner cleaning cylinder 1 along the outer circumference. The cutting unit includes a connecting rod 4 and a cutting knife 401 fixed on its end. There is a set of rotating shafts 6 that run through the wall thickness of the inner cleaning cylinder 1. The end of the rotating shaft 6 in contact with the power transmission line 3 is provided with a group of crushing knives 7 that are evenly distributed along the circumference. The net cover 9 connected to the end of the rotating shaft 6; the inner cleaning cylinder 1 and the rotating shaft 6 have a degree of freedom of rotation driven by the driving mechanism, and the concentric sleeve has a degree of freedom of horizontal movement along the power transmission line 3 by means of a walking mechanism The distance sensor 14 is fixed at both ends of the drive cylinder 2, the special tool is provided with a controller 15, the signal output end of the distance sensor 14 is connected with the signal input end of the controller 15, and the signal output end of the controller 15 is connected with the signal input end of the controller 15. The control terminals of the driving motor 11 are connected.

Specific embodiments, as shown in Figures 1 to 9, the drive mechanism includes a counterweight motor 5 fixed on the outer drive cylinder 2, a drive gear 501 located inside the outer drive cylinder 2 and connected to the output end of the counterweight motor 5, and The outer wall of the inner cleaning cylinder 1 is provided with a ring gear 502 meshed with the driving gear 501, and the counterweight motor 5 provides power for the rotation of the driving gear 501 and the ring gear 502, thereby driving the inner cleaning cylinder 1 to rotate; the rotating shaft 6 is located at Both sides of the ring gear 502 are distributed along the circumference of the inner cleaning cylinder 1. The rotating shaft 6 is provided with an autorotation gear 602 near the end of the outer driving cylinder 2, and the inner wall of the outer driving cylinder 2 is provided with a guide that meshes with the autorotation gear 602. The gear 601 and the inner cleaning cylinder 1 drive the rotating shaft 6 to rotate along its circumferential direction, so that the rotation gear 602 meshes and rotates along the circumferential direction of the guide gear 601, and finally drives the rotating shaft 6 to rotate by itself; in summary, the driving mechanism realizes the inner cleaning cylinder The rotation of 1 provides rotation for the work of cutting knife 401, and also realizes the rotation of rotating shaft 6, that is, provides rotation for the work of crushing knife 7;

The traveling mechanism includes two walking wheels 10 which are located inside the inner cleaning cylinder 1 and clamp the power transmission line 3 in the middle. The outer circumference of the walking wheels 10 is provided with a groove matching the outer contour of the power transmission line 3. The outer wall of the inner cleaning cylinder 1 A drive motor 11 is fixed, and the output end of the drive motor 11 is connected to a rotating shaft of a walking wheel 10;

In order to facilitate installation and disassembly at any time, the inner cleaning cylinder 1 and the outer driving cylinder 2 are both arranged in a two-petal structure. Located inside the outer drive cylinder 2, it is defined inside the outer drive cylinder 2 by the driving mechanism to form an integrated structure, without the need for bolts to be locked and fixed. The counterweight motor 5 exerts a downward force on the outer drive cylinder 2. It is precisely because the counterweight motor 5 Only by the gravity effect can the output power drive the inner cleaning cylinder 1 to rotate, so as to realize the relative movement between the inner cleaning cylinder 1 and the transmission line 3;

The drive motor 11 in the traveling mechanism is installed on the side of the inner cleaning cylinder 1, as long as the drive motor 11 can meet the rotation requirements of the travel wheel 10, the selected model is much smaller in weight than the counterweight motor 5 .

The traveling mechanism drives the entire special tool to walk, and the driving mechanism operates during the walking process to drive the inner cleaning cylinder 1 to rotate, that is, to drive the cutting knife 401 to work, and the crushing knife 7 at the end of the rotating shaft 6 is driven by the inner cleaning cylinder 1. Rotate to drive the rotation gear 602 and the guide gear 601 so as to realize;

When the driving mechanism is working, the counterweight motor 5 outputs power, and the driving gear 501 drives the ring gear 502 on the outer wall of the inner cleaning cylinder 1 to rotate. shape and the outer circumference is a knife edge, the connecting rod 4 is vertically fixed on the outer wall of the inner cleaning cylinder 1, the cutting knife 401 is vertically fixed on the outer end of the connecting rod 4, and all the cutting knives 401 rotate to form a cylindrical cutting surface, which can clean the power transmission line 3 outside Cut and clean the objects to avoid damages such as short circuit, crushing and pulling of the transmission line 3 caused by hanging objects and close objects;

Due to the rotation of the inner cleaning cylinder 1, the rotation gear 602 at the outer end of the rotating shaft 6 meshes with the guide gear 601 on the inner wall of the outer drive cylinder 2, and the guide gear 601 is provided with a toothed ring on the side, and the rotation gear 602 is driven to rotate after rotation The crushing knife 7 at the inner end of the shaft 6 rotates, and the crushing knife 7 includes a rake face 701, a flank, a cutting face 702 connecting the bottom edge of the rake face 701 and the bottom edge of the flank face 702 and a terminal face 703 at the end, The rake face 701 is an inwardly concave arc surface, the flank face and the cutting surface 702 are outwardly convex arc surfaces, the end face 703 is the cross section of the crushing knife 7, the rake face 701 and the cutting face 702 The included angle is the cutting edge 704 and the included angle is 20 degrees. The net cover 9 includes a circular arc-shaped bottom surface 901 and an annular side surface 902 fixed on its circumference. And along a group of arc-shaped mesh bars 904 of its circular array, a circular support plate 905 is arranged at the intersection of all arc-shaped mesh bars 904, and the upper end surface of the circular support plate 905 is fixedly connected with the spring 8, and the spring 8 A floatable net cover 9 is formed. When there are attachments on the surface of the transmission line 3 that need to be cleaned, the arc-shaped mesh ribs 904 in the net cover 9 rub and loosen the attachments in the circumferential direction, and the loose attachments gradually enter the arc shape. In the gaps between the mesh bars 904, the pulverizing knife 7 will then pulverize and clean the attachments entering the arc-shaped mesh bars 904. The floating mesh cover 9 avoids the shortcomings of the fixed type. For example, when the attachments are relatively hard, the mesh cover 9 Squeeze deformation, strong impact on the rotating crushing knife 7 and the rotating shaft 6, etc., all of which will greatly reduce the service life of the crushing mechanism, the cutting surface 702 of the crushing knife 7 is arc-shaped, and forms an arc after rotation Shaped working surface, the distance between the working surface and the transmission line 3 gradually decreases, and in the running direction, a working state of gradually cutting the thickness of the attachment is formed, and the cutting resistance is dispersed to each thickness, avoiding the planar work The problem that the cutting resistance that surface forms is concentrated occurs; the rotating shaft 6 on both sides of ring gear 502 is opposite on the rotational direction, and in the same running direction, the crushing knife 7 on the end of rotating shaft 6 on different circumferences can The attachments are cleaned in the opposite direction, avoiding the failure of the cleaning caused by the attachments being gradually and evenly spread on the surface of the transmission line 3 along the cleaning direction caused by cleaning in the same direction. The cutting and cleaning in two directions can completely clean the attachments ;

In addition, a roller 603 is installed on the outer end of the rotating shaft 6, and the inner wall of the outer driving cylinder 2 is provided with an annular guide groove 604 used in conjunction with the roller 603. The arrangement of the roller 603 and the annular guide groove 604 can keep the inner cleaning cylinder 1 and the outer driving cylinder 2 The distance between them avoids the problem of poor operation caused by the gradual clamping between the outer drive cylinder 2 and the inner cleaning cylinder 1 during operation, and ensures the normal and continuous operation of the special tool.

Distance sensors 14 are fixed at both ends of the outer drive cylinder 2, and a controller 15 is arranged on the special tool. The signal output end of the distance sensor 14 is connected with the signal input end of the controller 15, and the signal output end of the controller 15 is connected with the drive motor. 11 is connected to the control end, and when the special tool runs to the connection between the transmission line 3 and the iron tower, the distance sensor 14 sends a signal of an obstacle to the controller 15, and the controller 15 sends a signal of reverse rotation to the drive motor 11, and the drive motor 11 drives the road wheel 10 to run in reverse, thereby driving the whole special tool to carry out the clearing work of the direction.

The special tool in the present invention is also provided with a power supply unit, including a solar cell panel 12 and a lithium battery 13 arranged on the upper end of the outer drive cylinder 2. The solar cell panel 12 is inclined toward the sun, and the angle between the inclined surface and the horizontal plane is 40°. -70 degrees, the power output end of the solar cell panel 12 is connected with the power input end of the lithium battery 13, and at the same time, is also connected with the power input end of the counterweight motor 5 and the driving motor 11. When the solar power generation condition is available, the solar cell panel 12 Charge the lithium battery 13 and supply power to the counterweight motor 5 and the drive motor 11 at the same time. In the case of power wiring, the power requirements of special tools are met to the greatest extent.

Claims (7)

1. A special tool for rotary removal of debris around the power line, characterized in that: the special tool includes a concentric sleeve composed of an inner cleaning cylinder (1) and an outer driving cylinder (2), and the power transmission line (3) along the Axial through the concentric sleeve, the length of the inner cleaning cylinder (1) is greater than the length of the outer drive cylinder (2), and a group of cutting units are arranged on both ends of the inner cleaning cylinder (1) along the outer circumference, and the cutting unit includes a connecting rod ( 4) and the cutting knife (401) fixed on its end, a group of rotating shafts (6) penetrating through the wall thickness of the inner cleaning cylinder (1) are arranged in the concentric sleeve, and the rotating shaft (6) and the power transmission line (3 ) contact ends are provided with a group of crushing knives (7) evenly distributed along the circumference, and the periphery of the crushing knives (7) is provided with a net cover (9) connected to the end of the rotating shaft (6) by means of a spring (8); The inner cleaning cylinder (1) and the rotating shaft (6) all have a degree of freedom of rotation driven by the driving mechanism, and the concentric sleeve has a degree of freedom of horizontal movement along the power transmission line (3) by means of the traveling mechanism; the driving cylinder (2 ) both ends are fixed with a distance sensor (14), the special tool is provided with a controller (15), the signal output end of the distance sensor (14) is connected with the signal input end of the controller (15), and the controller (15) The signal output end of the drive motor (11) is connected with the control end. 2. A special rotary tool for removing debris around power lines according to claim 1, characterized in that: the drive mechanism includes a counterweight motor (5) fixed on the outer drive cylinder (2), located The drive gear (501) inside the outer drive cylinder (2) and connected to the output end of the counterweight motor (5) and the ring gear (502) arranged along the outer wall of the inner cleaning cylinder (1) and meshed with the drive gear (501), The rotating shaft (6) is located on both sides of the ring gear (502) and distributed along the circumference of the inner cleaning cylinder (1), and the rotating shaft (6) is provided with an autorotation gear ( 602), the inner wall of the outer drive cylinder (2) is provided with a guide gear (601) meshed with the rotation gear (602). 3. A special rotary tool for removing sundries around power lines according to claim 1, characterized in that: said traveling mechanism includes a tool located inside the inner cleaning cylinder (1) and clamps the power transmission line (3) on Two walking wheels (10) in the middle, the outer circumference of the walking wheels (10) is provided with a groove matching the outer contour of the power transmission line (3), and the outer wall of the inner cleaning cylinder (1) is fixed with a drive motor (11). The output end of motor (11) links to each other with the rotating shaft of a walking wheel (10). 4. A special rotary tool for removing sundries around power lines according to claim 1, characterized in that: said rotating shaft (6) is equipped with a roller ( 603), the inner wall of the outer drive cylinder (2) is provided with an annular guide groove (604) used in conjunction with the roller (603). 5. A special rotary tool for removing sundries around power lines according to claim 1, characterized in that: the crushing knife (7) includes a rake face (701), a flank, and a connecting rake face (701) The cutting surface (702) of the bottom edge and the flank bottom edge and the end surface (703) at the end, the rake surface (701) is an inwardly concave arc surface, the flank surface and the cutting surface ( 702) are all outwardly convex arc surfaces, the end face (703) is the cross section of the pulverizer (7), and the angle between the rake face (701) and the cutting face (702) is the cutting edge (704) And the included angle is 10-30 degrees. 6. A special rotary tool for removing sundries around power lines according to claim 1, characterized in that: the net cover (9) includes an arc-shaped bottom surface (901) and an annular ring fixed on its circumference The side (902), the arc-shaped bottom surface (901) includes a circular mesh bar (903) and a group of arc-shaped mesh bars (904) located inside and along its circular array around the center of the circle, and all arc-shaped mesh bars (904) A circular support plate (905) is arranged at the meeting point, and the upper end surface of the circular support plate (905) is fixedly connected with the spring (8). 7. A special rotary tool for removing sundries around power lines according to claim 1, characterized in that: the cutting knife (401) is circular and the outer circumference is a blade, and the connecting rod (4) is fixed vertically On the outer wall of the inner cleaning cylinder (1), the cutting knife (401) is vertically fixed to the outer end of the connecting rod (4).