CN113363866A - Chest expander for replacing insulator of extra-high voltage line - Google Patents
Chest expander for replacing insulator of extra-high voltage line Download PDFInfo
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- CN113363866A CN113363866A CN202110667065.1A CN202110667065A CN113363866A CN 113363866 A CN113363866 A CN 113363866A CN 202110667065 A CN202110667065 A CN 202110667065A CN 113363866 A CN113363866 A CN 113363866A
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- connecting device
- extra
- high voltage
- worm
- voltage line
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention provides a chest expander for replacing an insulator of an extra-high voltage line, which belongs to the technical field of power equipment and comprises a shell, a first connecting device, a second connecting device, a bearing and an adjusting device, wherein the first connecting device, the second connecting device, the bearing and the adjusting device are arranged on the shell; the first connecting device comprises a first wire barrel and a first wire rod; the second connecting device comprises a second wire barrel and a second screw rod; the adjusting device comprises a worm and a worm wheel; completely different from the existing hydraulic chest expander, the output direction is changed from the original up-down output to the front-back output; the T-shaped thread structure is adopted, so that the self-locking property is better; the force transmission mechanism increases the use load of the original national standard by 20% by using the structural principle of a worm gear and a worm, reduces the output to be within 10 kilograms, and finishes the use to meet the load; the self-locking is stopped at any position, so that the wire is prevented from running and falling off, the safety of the line and personnel is better protected, and the use time of the original design is improved from 10 to 40; the product utilization rate is improved more effectively, the cost is saved, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a chest expander for replacing an insulator of an extra-high voltage line.
Background
At present, a chest expander is commonly used in the field of electric power to pull when an insulator of an extra-high voltage line is replaced; the existing common tractor is a hydraulic tractor, has a small range of bearable load, is easy to have the problems of line running and falling caused by overlarge load, and threatens the safety of lines and workers.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a chest expander for replacing an insulator of an extra-high voltage line, which is completely different from the existing hydraulic chest expander in that the output direction is changed from the original upper and lower output into the front and back output; the T-shaped thread structure is adopted, so that the self-locking property is better; the force transmission mechanism increases the use load of the original national standard by 20% by using the structural principle of a worm gear and a worm, reduces the output to be within 10 kilograms, and finishes the use to meet the load; the self-locking is stopped at any position, so that the wire is prevented from running and falling off, the safety of the line and personnel is better protected, and the use time of the original design is improved from 10 to 40; the product utilization rate is improved more effectively, the cost is saved, and the working efficiency is improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
a chest expander for replacing insulators of an extra-high voltage line is characterized by comprising a shell, a first connecting device, a second connecting device, a bearing and an adjusting device, wherein the first connecting device, the second connecting device, the bearing and the adjusting device are arranged on the shell;
the bearing is arranged in the shell;
the first connecting device comprises a first wire barrel and a first wire rod; the first wire barrel is movably arranged in the shell, and one end of the first wire barrel abuts against one side of the bearing; the first screw rod is movably arranged in the first screw cylinder;
the second connecting device comprises a second wire barrel and a second wire rod; one end of the second wire barrel is fixed on the shell; the second screw rod is movably arranged in the second screw cylinder;
the adjusting device comprises a worm and a worm wheel; the worm is movably arranged on the shell; the worm wheel is movably arranged on the first screw rod and is in transmission connection with the first screw cylinder; the worm is in transmission connection with the worm wheel.
Preferably, the first screw rod is integrally provided with T-shaped threads, and the first screw cylinder is internally provided with a thread groove matched with the T-shaped threads.
Preferably, the first lead screw is integrally provided with a first connecting terminal.
Preferably, the T-shaped thread is provided with two ends respectively located at two ends of the first lead screw.
Preferably, a second connecting terminal is integrally arranged on the second wire barrel.
Preferably, a transmission key is arranged between the worm wheel and the first screw cylinder and is in transmission connection with the first screw cylinder through the transmission key.
Preferably, the worm wheel and the first wire barrel are fixedly connected through a screw.
The invention has the beneficial effects that: the design of the invention is completely different from the existing hydraulic chest expander, and the output direction is changed from the original up-down output to the front-back output; the T-shaped thread structure is adopted, so that the self-locking property is better; the force transmission mechanism increases the use load of the original national standard by 20% by using the structural principle of a worm gear and a worm, reduces the output to be within 10 kilograms, and finishes the use to meet the load; the self-locking is stopped at any position, so that the wire is prevented from running and falling off, the safety of the line and personnel is better protected, and the use time of the original design is improved from 10 to 40; the product utilization rate is improved more effectively, the cost is saved, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a fixture for replacing an insulator of an extra-high voltage line;
fig. 2 is a schematic structural diagram of a chest expander for replacing an insulator of an extra-high voltage line according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view taken along the direction D-D in FIG. 2;
fig. 4 is a schematic structural diagram of a first screw rod of a chest expander for replacing an insulator of an extra-high voltage line according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first wire barrel of a tension device for replacing an insulator of an extra-high voltage line according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a casing of a chest expander for replacing insulators of an extra-high voltage line according to an embodiment of the invention;
FIG. 7 is a schematic structural diagram of a worm wheel of a tensioner for replacing insulators of an extra-high voltage line according to an embodiment of the invention;
fig. 8 is a schematic structural diagram of a second wire barrel of a tension device for replacing insulators of an extra-high voltage line according to an embodiment of the invention;
fig. 9 is a schematic structural diagram of a second screw rod of a tensioner for replacing an insulator of an extra-high voltage line according to an embodiment of the present invention;
fig. 10 is a schematic view showing a state of use of a conventional hydraulic chest expander.
Description of reference numerals:
the device comprises a rear clamping device 1, a lower clamping device 2, a chest expander 3, a connecting device 4, an upper clamping device 5, a first screw rod 6, a first screw cylinder 7, a bearing 8, a worm 9, a shell 10, a second screw rod 11, a second screw cylinder 12, a worm wheel 13, a first connecting terminal 14, a T-shaped thread 15, a transmission key 16 and a second connecting terminal 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "in", "upper", "lower", "lateral", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 10, a tension device for replacing insulators of an extra-high voltage line comprises a shell 10, and a first connecting device 4, a second connecting device 4, a bearing 8 and an adjusting device which are arranged on the shell 10;
the bearing 8 is arranged in a shell 10, a groove for accommodating the bearing 8 is arranged in the shell 10, and the bearing 8 is a thrust ball bearing 8;
the first connecting device 4 comprises a first wire barrel 7 and a first wire rod 6; the first wire barrel 7 is movably arranged in the shell 10, and one end of the first wire barrel 7 is abutted against one side of the bearing 8; the first screw rod 6 is movably arranged in the first screw cylinder 7;
the second connecting device 4 comprises a second wire barrel 12 and a second screw rod 11; one end of the second wire barrel 12 is fixed on the housing 10; the second screw rod 11 is in threaded connection with the second screw cylinder 12, and the extension length of the second screw rod 11 from the second screw cylinder 12 can be adjusted by rotating the second screw rod 11;
the adjusting device comprises a worm 9 and a worm wheel 13; the worm 9 is movably arranged on the shell 10; the worm wheel 13 is movably arranged on the first screw rod 6, and the worm wheel 13 is in transmission connection with the first screw cylinder 7; the worm 9 is in transmission connection with a worm wheel 13.
Further, T-shaped threads 15 are integrally arranged on the first screw rod 6, and thread grooves matched with the T-shaped threads 15 are formed in the first screw cylinder 7; t type screw thread 15 has self-locking function, stops the auto-lock at optional position and plays and does not run the line, does not drop, plays better protection to circuit and personnel's safety.
Further, the first lead screw 6 is integrally provided with a first connecting terminal 14.
Further, the T-shaped thread 15 is provided with two ends respectively located at two ends of the first lead screw 6.
Further, a second connection terminal 17 is integrally provided on the second wire barrel 12.
Further, a transmission key 16 is arranged between the worm wheel 13 and the first screw cylinder 7, and is in transmission connection through the transmission key 16.
Further, the worm wheel 13 and the first wire barrel 7 are fixedly connected through screws.
The chest expander 3 is used in a clamp for replacing an insulator of an extra-high voltage line, and the clamp comprises an upper clamp device 5, a lower clamp device 2, a connecting device 4 and a rear clamp device 1; two ends of the chest expander 3 are respectively connected with the lower clamp device 2 and the connecting device 4 through bolts; during the use, connect worm 9 through the instrument, drive worm 9 rotates, and worm 9 drives worm wheel 13 and rotates, and worm wheel 13 drives first silk section of thick bamboo 7 and rotates, because of first lead screw 6 is connected on lower clamp device 2, and first lead screw 6 can' T rotate, and under the cooperation of the T type screw thread 15 of first lead screw 6 and the thread groove of first silk section of thick bamboo 7, the rotation of first silk section of thick bamboo 7 can stimulate first lead screw 6 forward or backward movement, realizes tightening up or relaxs the function.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A chest expander for replacing insulators of an extra-high voltage line is characterized by comprising a shell, a first connecting device, a second connecting device, a bearing and an adjusting device, wherein the first connecting device, the second connecting device, the bearing and the adjusting device are arranged on the shell;
the bearing is arranged in the shell;
the first connecting device comprises a first wire barrel and a first wire rod; the first wire barrel is movably arranged in the shell, and one end of the first wire barrel abuts against one side of the bearing; the first screw rod is movably arranged in the first screw cylinder;
the second connecting device comprises a second wire barrel and a second wire rod; one end of the second wire barrel is fixed on the shell; the second screw rod is movably arranged in the second screw cylinder;
the adjusting device comprises a worm and a worm wheel; the worm is movably arranged on the shell; the worm wheel is movably arranged on the first screw rod and is in transmission connection with the first screw cylinder; the worm is in transmission connection with the worm wheel.
2. The tension device for replacing the insulator of the extra-high voltage line as claimed in claim 1, wherein the first lead screw is integrally provided with T-shaped threads, and the first lead screw cylinder is internally provided with thread grooves matched with the T-shaped threads.
3. A tension device for extra-high voltage line insulator replacement as claimed in claim 1, wherein said first lead screw is integrally provided with a first connecting terminal.
4. The tension device for replacing the insulator of the extra-high voltage line as claimed in claim 2, wherein the T-shaped thread is provided with two ends respectively located at two ends of the first screw rod.
5. A tension device for extra-high voltage line insulator replacement as recited in claim 1, wherein said second wire barrel is integrally provided with a second connecting terminal.
6. The tension device for replacing the insulator of the extra-high voltage line as claimed in claim 1, wherein a transmission key is arranged between the worm wheel and the first wire barrel, and is in transmission connection with the first wire barrel through the transmission key.
7. The tension device for replacing the insulator of the extra-high voltage line as claimed in claim 6, wherein the worm wheel and the first wire barrel are fixedly connected through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667065.1A CN113363866A (en) | 2021-06-16 | 2021-06-16 | Chest expander for replacing insulator of extra-high voltage line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667065.1A CN113363866A (en) | 2021-06-16 | 2021-06-16 | Chest expander for replacing insulator of extra-high voltage line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113363866A true CN113363866A (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110667065.1A Pending CN113363866A (en) | 2021-06-16 | 2021-06-16 | Chest expander for replacing insulator of extra-high voltage line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113363866A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401181A (en) * | 2013-07-23 | 2013-11-20 | 国家电网公司 | Universal fixture |
| CN106159796A (en) * | 2016-08-11 | 2016-11-23 | 国网湖南省电力公司带电作业中心 | A kind of general closed type fixture for changing extra-high voltage insulator and using method thereof |
| CN209233315U (en) * | 2018-12-29 | 2019-08-09 | 宝鸡市韦思特电气有限公司 | A kind of cylindrical worm and worm wheel driving chest expander for insulator clamp apparatus |
-
2021
- 2021-06-16 CN CN202110667065.1A patent/CN113363866A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401181A (en) * | 2013-07-23 | 2013-11-20 | 国家电网公司 | Universal fixture |
| CN106159796A (en) * | 2016-08-11 | 2016-11-23 | 国网湖南省电力公司带电作业中心 | A kind of general closed type fixture for changing extra-high voltage insulator and using method thereof |
| CN209233315U (en) * | 2018-12-29 | 2019-08-09 | 宝鸡市韦思特电气有限公司 | A kind of cylindrical worm and worm wheel driving chest expander for insulator clamp apparatus |
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Application publication date: 20210907 |