CN217062558U

CN217062558U - Grounding wire clamp

Info

Publication number: CN217062558U
Application number: CN202220297071.2U
Authority: CN
Inventors: 许航
Original assignee: North China Electric Power University Baoding
Current assignee: North China Electric Power University Baoding
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-07-26
Anticipated expiration: 2032-02-15

Abstract

The utility model discloses an earth clamp relates to high tension transmission line and overhauls technical field, including first clamp arm, the second presss from both sides the clamp arm, holder and drive arrangement, first clamp arm rotates around first axis of rotation and locates on the holder, the second presss from both sides the clamp arm and rotates around the second axis of rotation and locates on the holder, drive arrangement is connected and can drive the one end of first clamp arm and the one end that the second pressed from both sides the clamp arm with first clamp arm and second respectively and is close to or keeps away from each other mutually, can reduce the manual operation that maintainer pressed from both sides tight high tension transmission line or loosen high tension transmission line in-process at the earth clamp.

Description

Grounding wire clamp

Technical Field

The utility model relates to a high tension transmission line overhauls technical field, especially relates to a ground clamp.

Background

The electric power is a basic resource related to the nation and the people, has very important significance for normal production of the society and daily life of the people, and the high-voltage transmission line plays a role in power transmission and transmission in the power industry, so that the high-voltage transmission line can be timely maintained when a fault occurs, and great significance is brought to guarantee of power supply.

The earth clamp is the protection device who is used for overhauing interim ground connection when being under construction, and current earth clamp mostly needs the maintainer to carry out a large amount of manual operation, and is not only inefficient, delays the time of resuming power supply, very easily causes the threat to maintainer's safety under the influence of external factors such as strong wind simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an earth clamp to solve the problem that above-mentioned prior art exists, can reduce the maintainer and press from both sides tight high tension power line or loosen the manually operation of high tension power line in-process at earth clamp.

In order to achieve the above purpose, the utility model provides a following scheme:

the utility model provides a ground clamp, including first clamp arm, second clamp arm, holder and drive arrangement, first clamp arm rotates around first axis of rotation to be located on the holder, second clamp arm rotates around the second axis of rotation to be located on the holder, drive arrangement be used for respectively with first clamp arm and the transmission of second clamp arm is connected and can be driven first clamp arm's one end with the one end of second clamp arm is close to each other or keeps away from each other.

Preferably, the clamping device further comprises a sliding part, a first connecting rod and a second connecting rod, the driving device adopts a driving motor, an output shaft of the driving motor is fixedly connected with a screw rod, the sliding part is used for being sleeved on the screw rod and is in threaded connection with the screw rod, one end of the first connecting rod is used for being rotatably connected with the first end of the sliding part around a third rotating axis, the other end of the first connecting rod is used for being rotatably connected with one end of the first clamping arm around a fourth rotating axis, one end of the second connecting rod is used for being rotatably connected with the second end of the sliding part around a fifth rotating axis, and the other end of the second connecting rod is used for being rotatably connected with one end of the second clamping arm around a sixth rotating axis; one end of the first clamping arm far away from the first connecting rod and one end of the second clamping arm far away from the second connecting rod can be close to each other to clamp the high-voltage transmission line or be far away from each other to release the high-voltage transmission line.

Preferably, the first clamping arm is provided with a first clamping portion, the second clamping arm is provided with a second clamping portion, and the first clamping portion and the second clamping portion are provided with arc-shaped clamping surfaces.

Preferably, the first rotation axis, the second rotation axis, the third rotation axis, the fourth rotation axis, the fifth rotation axis and the sixth rotation axis are parallel to each other, a plane where the first rotation axis and the second rotation axis are located is perpendicular to the rotation axis of the lead screw, and a plane where the third rotation axis and the fifth rotation axis are located and a plane where the fourth rotation axis and the sixth rotation axis are located are both parallel to a plane where the first rotation axis and the second rotation axis are located.

Preferably, the first link and the second link have the same shape and the same size, and the first clamp arm and the second clamp arm have the same shape and the same size.

Preferably, the holder includes a protective housing, one end of the protective housing is detachably and fixedly provided with the driving motor, one end of the lead screw is used for extending into the protective housing, the slider is used for locating inside the protective housing, two opposite side walls of the protective housing are respectively provided with a first sliding groove and a second sliding groove, one end of the first connecting rod is used for passing through the first sliding groove from outside the protective housing to enter into the protective housing and is rotationally connected with the first end of the slider around the third rotation axis, and one end of the second connecting rod is used for passing through the second sliding groove from outside the protective housing to enter into the protective housing and is rotationally connected with the second end of the slider around the fifth rotation axis.

Preferably, the holder further includes a support member, the support member is detachably and fixedly disposed at one end of the protective casing far away from the driving motor, and the middle portion of the first clamping arm is configured to form a rotational connection around the first rotation axis with one end of the support member, and the middle portion of the second clamping arm is configured to form a rotational connection around the second rotation axis with the other end of the support member.

The utility model discloses for prior art gain following technological effect:

the utility model provides a ground clamp, the one end through the first tight arm of drive arrangement drive is close to mutually with the one end of the tight arm of second clamp and can realize that first tight arm of clamp and the tight high voltage transmission line of second clamp promptly, keep away from mutually with the one end of the tight arm of second clamp through the one end of the first tight arm of drive arrangement drive and can realize that first tight arm of clamp and second clamp loosen high voltage transmission line, can reduce the manual operation that maintainer pressed from both sides tight high voltage transmission line at ground clamp or loosened high voltage transmission line in-process ground clamp, thereby reduce the requirement to maintainer's technical proficiency, save time and labor, reduce maintainer working strength, guarantee maintainer's personal safety simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a ground clip provided by the present invention;

fig. 2 is a structural schematic diagram of one direction of the ground clip in fig. 1.

In the figure: 100-ground wire clamp, 1-first clamping arm, 11-first clamping part, 2-second clamping arm, 21-second clamping part, 3-holding piece, 31-protective shell, 32-supporting piece, 4-driving device, 41-driving motor, 42-screw rod, 5-sliding piece, 6-first connecting rod and 7-second connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides a ground clamp 100, as shown in fig. 1 and fig. 2, including first clamp arm 1, second clamp arm 2, holder 3 and drive arrangement 4, first clamp arm 1 rotates around first axis of rotation and locates on holder 3, second clamp arm 2 rotates around the second axis of rotation and locates on holder 3, drive arrangement 4 is used for being close to or keeping away from each other with first clamp arm 1 and the transmission of second clamp arm 2 respectively and can drive the one end of first clamp arm 1 and the one end of second clamp arm 2.

Therefore, the utility model provides an earth clamp 100, the one end through the first tight arm 1 of drive arrangement 4 drive is close to mutually with the one end of second tight arm 2 of clamp and can realize that first tight arm 1 presss from both sides tight high voltage transmission line with second tight arm 2, keep away from mutually through the one end of the first tight arm 1 of drive arrangement 4 drive and the one end of second tight arm 2 of clamp and can realize that first tight arm 1 and second tight arm 2 of clamp loosen high voltage transmission line promptly, can reduce the maintainer and press from both sides tight high voltage transmission line or loosen the manual operation of high voltage transmission line in-process butt earth clamp 100 at earth clamp 100, thereby reduce the requirement to the technical skill of maintainer, time saving and labor saving, reduce maintainer working strength, guarantee maintainer's personal safety simultaneously.

Further, as shown in fig. 1 and fig. 2, the utility model provides a ground clamp 100 further includes a slider 5, a first connecting rod 6 and a second connecting rod 7, the driving device 4 adopts a driving motor 41, an output shaft of the driving motor 41 is fixedly connected with a lead screw 42, the slider 5 is used for being sleeved on the lead screw 42 and being in threaded connection with the lead screw 42, one end of the first connecting rod 6 is used for being rotationally connected with the first end of the slider 5 around a third rotation axis, the other end of the first connecting rod 6 is used for being rotationally connected with one end of the first clamping arm 1 around a fourth rotation axis, one end of the second connecting rod 7 is used for being rotationally connected with the second end of the slider 5 around a fifth rotation axis, and the other end of the second connecting rod 7 is used for being rotationally connected with one end of the second clamping arm 2 around a sixth rotation axis; one end of the first clamping arm 1, which is far away from the first connecting rod 6, and one end of the second clamping arm 2, which is far away from the second connecting rod 7, can be close to each other and clamp the high-voltage transmission line or be far away from each other and loosen the high-voltage transmission line, the screw rod 42 can drive the sliding piece 5 to move towards the direction far away from the driving motor 41 by rotating along the first direction, and the first clamping part 11 and the second clamping part 21 can be drawn to be close to each other by moving the sliding piece 5 towards the direction far away from the driving motor 41 so as to clamp the high-voltage transmission line; lead screw 42 can drive slider 5 along the second direction rotation and remove to the direction that is close to driving motor 41, slider 5 can pull first clamping part 11 and second clamping part 21 to the direction removal that is close to driving motor 41 and keep away from each other and be used for unclamping high tension power line, first direction and second opposite direction, moreover, the steam generator is simple in structure, it is clear and definite to pass the power route, good auto-lock performance has, can not be because of the easy clamp of relaxing to high tension power line of external factors such as weather, thereby ground clamp 100's reliability has been improved greatly, moreover, the whole structure is compact, and small occupied space, it is more convenient to make and carry. In this embodiment, the switching on/off of the driving motor 41 is controlled by a remote control manner, so as to further ensure the personal safety of the maintainers, and the driving motor 41 is implemented by a common dc micro motor, which has the advantages of small volume, light weight, high efficiency, strong stability, simple structure, etc., in order to prevent the driving motor 41 from continuously rotating after the first clamping arm 1 and the second clamping arm 2 clamp the high voltage transmission line, which causes the heating damage of the driving motor 41, the starting and stopping of the driving motor 41 may be controlled by a method for measuring a current value, for example, the current is set to be 1 ampere when the driving motor 41 normally works, the locked-rotor current of the driving motor 41 in a locked-rotor (stuck) state is set to be 2.8 amperes after the first clamping arm 1 and the second clamping arm 2 clamp the high voltage transmission line, so that once the current of the driving motor 41 is measured to be 2.8 amperes, the driving motor 41 may be turned off, the rotation of the drive motor 41 is stopped.

Further, as shown in fig. 1 and fig. 2, the first clamping arm 1 is provided with a first clamping portion 11, the second clamping arm 2 is provided with a second clamping portion 21, the first clamping portion 11 and the second clamping portion 21 are provided with arc-shaped clamping surfaces, and can better adhere to the high-voltage transmission line, wherein the dimensions of the arc-shaped clamping surfaces of the first clamping portion 11 and the second clamping portion 21 need to be selected according to specific use requirements.

Further, the first rotation axis, the second rotation axis, the third rotation axis, the fourth rotation axis, the fifth rotation axis and the sixth rotation axis are parallel to each other, the plane where the first rotation axis and the second rotation axis are located is perpendicular to the rotation axis of the lead screw 42, the plane where the third rotation axis and the fifth rotation axis are located and the plane where the fourth rotation axis and the sixth rotation axis are located are both parallel to the plane where the first rotation axis and the second rotation axis are located, so that the acting forces on the first clamping portion 11 and the second clamping portion 21 can be guaranteed to be equal in magnitude, the movement paths are symmetrical, and the service life of the whole grounding clamp 100 is prolonged.

Further, as shown in fig. 1 and 2, the first link 6 and the second link 7 have the same shape and size, and the first clamp arm 1 and the second clamp arm 2 have the same shape and size, so as to facilitate manufacturing and reduce production and maintenance costs.

Further, as shown in fig. 1 and 2, the holder 3 includes a protective shell 31, one end of the protective shell 31 is detachably and fixedly provided with a driving motor 41, one end of a lead screw 42 is used for extending into the protective shell 31, the slider 5 is used for being disposed inside the protective shell 31, two opposite side walls of the protective shell 31 are respectively provided with a first sliding slot and a second sliding slot, one end of a first connecting rod 6 is used for penetrating the first sliding slot from outside the protective shell 31 into the protective shell 31 and is rotatably connected with the first end of the slider 5 around a third rotation axis, one end of a second connecting rod 7 is used for penetrating the second sliding slot from outside the protective shell 31 into the protective shell 31 and is rotatably connected with the second end of the slider 5 around a fifth rotation axis, so as to separate the inside of the protective shell 31 from the outside of the protective shell 31, and ensure that the motion transmission in the protective shell 31 is performed stably and safely.

Further, as shown in fig. 1 and fig. 2, the holder 3 further includes a supporting member 32, the supporting member 32 is detachably fixed on one end of the protecting shell 31 far away from the driving motor 41, and the middle portion of the first clamping arm 1 is used for forming a rotational connection around the first rotation axis with one end of the supporting member 32, and the middle portion of the second clamping arm 2 is used for forming a rotational connection around the second rotation axis with the other end of the supporting member 32, so as to facilitate manufacturing and reduce production and maintenance costs.

The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a ground clamp which characterized in that: the clamping device comprises a first clamping arm, a second clamping arm, a holder and a driving device, wherein the first clamping arm is arranged on the holder in a rotating mode around a first rotating axis, the second clamping arm is arranged on the holder in a rotating mode around a second rotating axis, and the driving device is used for being in transmission connection with the first clamping arm and the second clamping arm respectively and driving one end of the first clamping arm and one end of the second clamping arm to be close to or far away from each other.

2. A ground clamp according to claim 1, characterized in that: the clamping device comprises a first clamping arm, a second clamping arm, a first connecting rod and a second connecting rod, and is characterized by further comprising a sliding part, the first connecting rod and the second connecting rod, wherein the driving device adopts a driving motor, an output shaft of the driving motor is fixedly connected with a screw rod, the sliding part is used for being sleeved on the screw rod and in threaded connection with the screw rod, one end of the first connecting rod is used for being rotatably connected with the first end of the sliding part around a third rotating axis, the other end of the first connecting rod is used for being rotatably connected with one end of the first clamping arm around a fourth rotating axis, one end of the second connecting rod is used for being rotatably connected with the second end of the sliding part around a fifth rotating axis, and the other end of the second connecting rod is used for being rotatably connected with one end of the second clamping arm around a sixth rotating axis; one end of the first clamping arm far away from the first connecting rod and one end of the second clamping arm far away from the second connecting rod can be close to each other and clamp the high-voltage power transmission line or be far away from each other and loosen the high-voltage power transmission line.

3. A ground clamp according to claim 2, characterized in that: the first clamping arm is provided with a first clamping portion, the second clamping arm is provided with a second clamping portion, and the first clamping portion and the second clamping portion are provided with arc-shaped clamping surfaces.

4. A ground clamp according to claim 2, characterized in that: the first rotation axis, the second rotation axis, the third rotation axis, the fourth rotation axis, the fifth rotation axis and the sixth rotation axis are parallel to each other, the plane where the first rotation axis and the second rotation axis are located is perpendicular to the rotation axis of the screw rod, and the plane where the third rotation axis and the fifth rotation axis are located and the plane where the fourth rotation axis and the sixth rotation axis are located are both parallel to the plane where the first rotation axis and the second rotation axis are located.

5. A ground clamp according to claim 4, characterized in that: the first connecting rod and the second connecting rod are identical in shape and size, and the first clamping arm and the second clamping arm are identical in shape and size.

6. A ground clamp according to claim 2, characterized in that: the retaining piece comprises a protective shell, one end of the protective shell is detachably and fixedly provided with the driving motor, one end of the lead screw is used for extending into the protective shell, the sliding piece is used for being arranged inside the protective shell, two opposite side walls of the protective shell are respectively provided with a first sliding groove and a second sliding groove, one end of the first connecting rod is used for passing through the first sliding groove outside the protective shell to enter the protective shell and be connected with the first end of the sliding piece in a rotating mode around the third rotating axis, and one end of the second connecting rod is used for passing through the second sliding groove outside the protective shell to enter the protective shell and be connected with the second end of the sliding piece in a rotating mode around the fifth rotating axis.

7. A ground clamp according to claim 6, characterized in that: the holder further comprises a supporting piece, the supporting piece is detachably and fixedly arranged at one end, far away from the driving motor, of the protective shell, the middle portion of the first clamping arm is used for being in rotating connection with one end of the supporting piece around the first rotating axis, and the middle portion of the second clamping arm is used for being in rotating connection with the other end of the supporting piece around the second rotating axis.