CN107492837B - Power-assisted follow-up pulley - Google Patents
Power-assisted follow-up pulley Download PDFInfo
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- CN107492837B CN107492837B CN201710948923.3A CN201710948923A CN107492837B CN 107492837 B CN107492837 B CN 107492837B CN 201710948923 A CN201710948923 A CN 201710948923A CN 107492837 B CN107492837 B CN 107492837B
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- main body
- pulley
- line pressing
- body frame
- frame
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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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- Electric Cable Installation (AREA)
- Pulleys (AREA)
Abstract
The invention relates to the technical field of overhead transmission line equipment maintenance in the power industry, in particular to a power-assisted heel tackle. Most of the existing following head pulleys are fixed-point use products and cannot be used for construction of lines with large gradients. The technical scheme of the invention comprises a main body frame with an opening at the side part, a main pulley, a floating line pressing mechanism, a transmission gear set and a driving mechanism; the main pulley is installed above the main body frame, a line pressing roller of the floating line pressing mechanism is connected with the main body frame through a hinge support and a sliding block, the distance between the line pressing roller and the main pulley is automatically adjusted, and the main pulley is connected with a driving mechanism on the side portion of the main body frame through a transmission mechanism. The device has a simple and reasonable structure, is convenient for hanging a line, enables the pulley to climb along the line by self by the aid of the driving mechanism, and is suitable for maintenance and construction under complex working conditions such as long-distance lines with large gradient and the like; the maintenance work efficiency is improved, the maintenance operation is simplified, and the labor intensity of workers is reduced.
Description
Technical Field
The invention relates to the technical field of overhead transmission line equipment maintenance in the power industry, in particular to a power-assisted heel tackle.
Background
Overhead transmission line is important component in the electric wire netting, and it has characteristics such as circuit length, wide range of being involved to expose for a long time in field operation, receive the harm of factors such as external force easily, in order to guarantee the safety and the stability of electric power transportation, need often to maintain transmission line's operation.
The circuit is maintained the operation and is utilized instruments such as coaster to hang the dress and form a hoist and mount point in the air on the circuit usually, because the dress of following the head coaster (wheel) and demolish and all can pass through stock direct operation by ground staff, consequently by the wide application in the transmission line routine maintenance work of patrolling and examining, be the essential maintenance instrument of circuit fortune dimension. The existing head-following tackle is used for fixed-point hoisting under most conditions, the movement is not considered in the design, when the tackle is required to be shifted, the tackle needs to be pulled vigorously to pull a lifting rope to pull the tackle forcibly to slide along a cable, the operation is difficult, particularly, the tackle works in mountainous areas, the situation that the gradient of a line is large is often met, the forced pulling mode is adopted, the pulley slides under the action of gravity and cannot move, the tackle needs to be hung again after being removed, the time and labor are wasted, the working efficiency is low, the labor intensity is increased, and great troubles are brought to the overhaul work.
Disclosure of Invention
The pulley device can smoothly climb when encountering a line with a larger gradient in the maintenance work of a power transmission line, avoids the repeated operation of repeatedly taking and hanging pulley equipment, reduces the labor intensity of operating personnel and improves the working efficiency.
The purpose of the invention is realized by the following technical scheme:
a power-assisted head pulley: comprises a main pulley, a hoisting pulley for suspending a heavy object, and a locking plate for preventing falling off; the wire pressing device also comprises a main body frame, a floating wire pressing mechanism, a clamping hook, a transmission gear set and a driving mechanism;
the main body frame is of a rectangular frame structure, a cable hanging interface is arranged at the middle section of a first side frame of the frame structure, and a vertical guide groove is formed in a second side frame; the main pulley wheel shaft is assembled at the upper sections of the frames at the two sides of the main body frame and is positioned above the cable hanging port of the main body frame;
the floating line pressing mechanism comprises a line pressing roller and a hinge support, the line pressing roller is positioned below the main pulley, the hinge support is positioned on one side of the first side frame, two ends of the hinge support are respectively hinged with one end of a roll shaft of the line pressing roller and the lower frame of the main body frame, and the other end of the roll shaft of the line pressing roller is clamped in a guide groove of the second side frame through a sliding block and is in sliding fit with the guide groove; the hinge support and the sliding block are both provided with return springs, and a roll shaft of the line pressing roll is parallel to a wheel shaft of the main pulley and the line pressing roll approaches to the main pulley under a normal state;
a hook for temporarily positioning the hinge bracket is arranged on the inner side of the main body frame;
a group of transmission gear sets is arranged on the outer side of a second side frame of the main body frame, a final-stage output end gear of each transmission gear set is coaxial with the main pulley, and a primary input end gear of each transmission gear set is coaxially connected with a power output end of the driving mechanism;
the locking plate can be vertically and slidably arranged on the upper section of the first side frame to control the opening and closing of the cable hanging port; the hoisting pulley is connected to the bottom of the lower frame of the main body frame.
Furthermore, the transmission gear set is a speed reduction gear set.
Furthermore, the lower section of the first side frame is provided with a limiting jackscrew for controlling the initial state of the hinge bracket.
Furthermore, the driving mechanism is a pull bead type chain rope and a manual chain wheel assembly matched with the pull bead type chain rope.
Furthermore, a limiting block used for setting a sliding block stroke lower dead point is arranged in the guide groove of the second side frame.
Furthermore, the middle section of a line pressing roller body of the floating line pressing mechanism is concave.
Furthermore, the surface of the line pressing roller body of the floating line pressing mechanism is provided with an anti-skid layer.
Furthermore, an anti-skid layer is arranged on the rolling surface of the main pulley.
Furthermore, a shield is arranged outside the transmission gear set and the driving mechanism.
Furthermore, a pull ring is arranged at the top of the lock plate.
The beneficial effects of the invention are:
the invention provides a pulley device for overhauling and maintaining overhead transmission lines, which has a simple and reasonable structure, is convenient for hanging and installing lines, can enable the pulleys to automatically climb and advance along the lines by the aid of the power of a driving mechanism under the condition of relatively complex working conditions, such as large line gradient, long-distance movement, unsmooth cable surface and the like, and the main pulleys and a floating wire pressing roller clamp the cables, so that the pulleys are effectively prevented from slipping, and can easily pass through when the surfaces of the cables are unsmooth or stained with sundries, repeated operation of repeated picking and hanging of existing products under complex working conditions is avoided, the defects of the existing heel pulleys are overcome, overhauling operation is simplified, the labor intensity of workers is relieved, and the working efficiency is improved. In addition, the operation of clamping the cable is realized by the cooperation of the wire pressing roller and the hinge support, so that the device is convenient and quick to take off and hang, and a worker can stand on the ground and operate through the long rod.
The technical scheme of the invention is explained in detail by combining the attached drawings and the detailed description.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of a hitch operation of the present invention;
fig. 4 is a schematic view of the demolition operation of the present invention.
Detailed Description
In the figure: 1. the main part frame, 1a, first side frame upper segment, 1b, first side frame hypomere, 1c, second side frame, 1d, guide way, 2, sprocket assembly, 3a, input gear, 3b, output gear, 4, cable, 5, guard shield, 6, the main pulley, 7, jam plate, 7a, the pull ring, 8, the line ball roller, 9, the hinge support, 10, spacing jackscrew, 11, pothook, 12, hoist and mount pulley.
Example 1
As can be seen from fig. 1 to 2, the present invention comprises a main pulley 6, a hoisting pulley 12 for suspending a heavy object, and a locking plate 7 for preventing falling; the method is characterized in that: the wire pressing machine also comprises a main body frame 1, a floating wire pressing mechanism, a clamping hook 11, a transmission gear set and a driving mechanism;
the main body frame 1 is a rectangular frame structure, a cable hanging port is formed in the middle section of a first side frame of the frame structure, and a vertical guide groove 1d is formed in a second side frame; the wheel axle of the main pulley 6 is horizontally assembled on the first side frame upper section 1a and the second side frame 1b of the main body frame, so that the main pulley 6 is positioned above the cable hanging port of the main frame body.
The floating wire pressing mechanism comprises a wire pressing roller 8 and a hinge support 9, the wire pressing roller 8 is horizontally arranged below the main pulley 6, the outer end of a roller shaft of the wire pressing roller 8 is connected with the upper end of the hinge support 9, the lower end of the hinge support 9 is hinged with the lower frame of the main body frame 1, so that the hinge support 9 is positioned on the inner side of the lower section 1b of the first side frame, and the lower section of the first side frame can effectively protect the hinge support and prevent the hinge support from excessive outward swinging; the inner end of a roll shaft of the line pressing roll 8 is slidably assembled in the guide groove 1d of the second side frame 1c through a sliding block; and return springs are arranged among the hinge support 9, the sliding block and the guide groove, so that a roll shaft of the line pressing roll 8 is parallel to a wheel shaft of the main pulley 6 and the line pressing roll 8 approaches to the main pulley 8 in a normal state.
The lower section 1b of the first side frame is provided with a limit jackscrew 10, and the limit jackscrew 10 is matched with the hinge support and used for adjusting and controlling the initial state of the hinge support.
A limiting block is arranged in the guide groove 1d of the second side frame 1c and used for setting a stroke bottom dead center of a sliding block (namely the inner end part of a roll shaft of the line pressing roll) so as to ensure that the descending stroke of the inner end part of the roll shaft of the line pressing roll is smaller than the compression amplitude of the outer end.
As an optimized technical scheme, the middle section of a roller body of a wire pressing roller 8 of the floating wire pressing mechanism is concave inwards to form a waisted shape so as to provide a large clamping and pressing surface by matching with the circumferential surface of the cable and keep a clamping state.
And the surface of a roller body of a wire pressing roller 8 of the floating wire pressing mechanism and the rolling surface of the main pulley 6 are both provided with anti-skid layers.
A hook 11 for temporarily positioning the hinge support is hinged and assembled on the inner side of the lower frame of the main body frame 1 and is provided with a return spring; a group of transmission gear set is arranged on the outer side of the second side frame 1c of the main body frame, and the transmission gear set is a speed reduction gear set, so that large output torque can be obtained by small power input. The technical scheme of the device is illustrated by a simple structure of two large and small gears which are meshed with each other, an output end gear 3b (a final-stage large gear) of the transmission gear set is coaxially linked with a main pulley 6, and an input end gear 3a (a primary small gear) of the transmission gear set is coaxially connected with a power output end of a driving mechanism.
The driving mechanism in the embodiment adopts a manual pull bead type chain rope and a chain wheel component 2 matched with the manual pull bead type chain rope to ensure the reliable work in the field environment, and a small electric device can be adopted to drive the main pulley by the remote control operation of ground workers.
A shield 5 is arranged outside the transmission gear set and the driving mechanism; the locking plate 7 can be vertically and slidably arranged in a sliding groove of the upper section 1a of the first side frame of the main body frame 1 to control the opening and closing of the cable hanging port, and the top of the locking plate 7 is provided with a pull ring 7a; the hoisting pulley 12 is arranged at the bottom of the lower frame of the main body frame 1.
When the device is connected with a cable, the outer end of a wire pressing roller 8 (one side of a cable hanging port of a main body frame 1) of a floating wire pressing mechanism is pressed downwards to inwards fold two hinged parts (connecting rods) of a hinge support 9 and is connected with a clamping hook 11, the wire pressing roller 8 inclines at the moment, the inner end of the wire pressing roller is higher than the outer end under the action of a return spring, namely, a wheel shaft of a main pulley 6 and a roller shaft of the wire pressing roller 8 are in an opening shape, as shown in figure 3, a pull ring 7a of a locking plate is lifted by a long rod to ascend into the air, the main body frame 1 slides downwards under the action of gravity, a cable hanging port of the main body frame is opened, a cable 4 enters the main body frame from the hanging port and is positioned between the main pulley 6 and the wire pressing roller 8, the main body frame is continuously lifted or shaken, the wire pressing roller 8 is pressed under the cable 4 to further fold the hinge support 9, the clamping hook part and the clamping hook 11 lose the hanging friction force, the return spring enables the clamping hook 11 to swing to return, and the hinge support 9 rebounds to enable the wire pressing roller 8 to ascend to be matched with the main pulley 6 to clamp the cable to finish the connection. When the pulley is moved, the pull bead type chain rope is pulled, the main pulley 6 is driven to roll through the transmission gear, and the pulley travels along the cable.
After the construction, still use the pull ring 7a pull-down messenger main part frame 1 of stock hook jam plate to overturn around the cable, as shown in fig. 4, continue pull-down pole, the jam plate is opened this moment, and cable 4 oppresses line ball roller 8 and makes the folding shrink of hinge support 9, and line ball roller 8 slopes, and 6 axles of main pulley and 8 rollers axles of line ball roller are the opening form, and the cable is deviate from and makes the coaster break away from the cable.
The pulley device is simple and reasonable in structure, can be operated by a worker standing on the ground, and is convenient for hanging and dismantling a line. The device overcomes the defects of the existing products, avoids repeated picking and hanging operations, simplifies maintenance operation, reduces the labor intensity of workers and improves the maintenance work efficiency.
Finally, it should be noted that: the above embodiments are provided to illustrate the technical solutions of the present invention and not to limit the same, and those skilled in the art should make modifications to the embodiments or substitute equivalent for part of the technical features without departing from the spirit of the technical solutions of the present invention, and all the embodiments are included in the scope of the present invention claimed.
Claims (8)
1. A power-assisted heel block comprises a main pulley (6), a hoisting pulley (12) for suspending heavy objects and a locking plate (7) for preventing falling off; the method is characterized in that: the wire pressing machine also comprises a main body frame (1), a floating wire pressing mechanism, a clamping hook (11), a transmission gear set and a driving mechanism;
the main body frame (1) is of a rectangular frame structure, a cable hanging port is formed in the middle section of a first side frame of the frame structure, and a vertical guide groove (1 d) is formed in a second side frame (1 c); the wheel shafts of the main pulleys (6) are assembled at the upper sections of frames at two sides of the main body frame and are positioned above the cable hanging port of the main body frame;
the floating line pressing mechanism comprises a line pressing roller (8) and a hinge support (9), the line pressing roller (8) is positioned below the main pulley (6), the hinge support is positioned on one side of the first side frame, two ends of the hinge support (9) are respectively hinged with one end of a roller shaft of the line pressing roller (8) and the lower frame of the main body frame (1), and the other end of the roller shaft of the line pressing roller (8) is clamped in a guide groove (1 d) of the second side frame through a sliding block and is in sliding fit with the guide groove; the hinge support (9) and the sliding block are both provided with return springs, the roll shaft of the line pressing roll (8) is parallel to the wheel shaft of the main pulley (6) under a normal state, and the line pressing roll (8) approaches the main pulley (6);
the inner side of the main body frame (1) is provided with a hook (11) for temporarily positioning the hinge bracket;
a group of transmission gear sets are arranged on the outer side of a second side frame (1 c) of the main body frame, output end gears of the transmission gear sets are coaxial with the main pulley (6), and input end gears of the transmission gear sets are coaxially connected with the power output end of the driving mechanism;
the locking plate (7) can be vertically and slidably arranged on the upper section (1 a) of the first side frame to control the opening and closing of the cable hanging port; the hoisting pulley (12) is connected to the bottom of the lower frame of the main body frame (1);
the transmission gear set is a speed reduction gear set;
and the lower section (1 b) of the first side frame is provided with a limiting jackscrew (10) for controlling the initial state of the hinge bracket.
2. A power assisted heel tackle as claimed in claim 1, wherein: the driving mechanism is a pull bead type chain rope and a chain wheel component (2) matched with the pull bead type chain rope.
3. A power assisted heel tackle as claimed in claim 1, wherein: and a limiting block used for setting a sliding block stroke bottom dead center is arranged in the guide groove (1 d) of the second side frame (1 c).
4. A power assisted heel tackle as claimed in claim 1, wherein: the middle section of a roller body of a line pressing roller (8) of the floating line pressing mechanism is concave.
5. A power assisted heel tackle as claimed in claim 1, wherein: and an anti-skid layer is arranged on the surface of the roller body of the line pressing roller (8) of the floating line pressing mechanism.
6. A power assisted heel tackle as claimed in claim 1, wherein: the rolling surface of the main pulley (6) is provided with an anti-skid layer.
7. A power assisted heel tackle as claimed in any one of claims 1 to 6, wherein: and a shield (5) is arranged outside the transmission gear set and the driving mechanism.
8. A power assisted heel lift according to any of claims 1 to 6, wherein: the top of the lock plate (7) is provided with a pull ring (7 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948923.3A CN107492837B (en) | 2017-10-12 | 2017-10-12 | Power-assisted follow-up pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948923.3A CN107492837B (en) | 2017-10-12 | 2017-10-12 | Power-assisted follow-up pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107492837A CN107492837A (en) | 2017-12-19 |
| CN107492837B true CN107492837B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710948923.3A Active CN107492837B (en) | 2017-10-12 | 2017-10-12 | Power-assisted follow-up pulley |
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| CN (1) | CN107492837B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832531A (en) * | 2018-05-23 | 2018-11-16 | 国网山东省电力公司菏泽市定陶区供电公司 | A kind of transmission line overhauling device |
| CN110829269A (en) * | 2019-12-09 | 2020-02-21 | 云南电网有限责任公司昆明供电局 | Special gallows of multi-loop vertical arrangement wire equipotential operation special guidance ground wire |
| CN111906791B (en) * | 2020-07-14 | 2022-09-23 | 国网浙江省电力有限公司台州供电公司 | Guide assembly of intelligent machine for maintenance operation of high-voltage power line in mountainous area |
| CN112072547B (en) * | 2020-09-07 | 2022-02-22 | 广东电网有限责任公司 | Auxiliary wiring vehicle |
| CN113937692A (en) * | 2021-10-20 | 2022-01-14 | 陈昭宇 | Cable tripod for electronic communication engineering |
| CN114123023B (en) * | 2021-11-08 | 2023-11-17 | 广西电网有限责任公司贺州供电局 | Movable multi-position steering pulley |
| CN114221292B (en) * | 2021-12-30 | 2024-03-12 | 河南华民电力设计有限公司 | Cable snow removing device |
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|---|---|---|---|---|
| JP2009119236A (en) * | 2007-10-23 | 2009-06-04 | Juki Corp | Tray-floating mechanism for sewing machine |
| CN201261402Y (en) * | 2008-09-10 | 2009-06-24 | 石家庄供电公司 | Automatic dropping trip pulley |
| CN104917098A (en) * | 2015-05-28 | 2015-09-16 | 国家电网公司 | Trip pulley capable of automatic locking |
| CN105244809A (en) * | 2015-10-29 | 2016-01-13 | 国网山东省电力公司菏泽供电公司 | Anti-disengagement type somersault tackle apparatus |
| CN206148845U (en) * | 2016-10-31 | 2017-05-03 | 国网湖南省电力公司带电作业中心 | Somersault coaster for power transmission line live working |
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2017
- 2017-10-12 CN CN201710948923.3A patent/CN107492837B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009119236A (en) * | 2007-10-23 | 2009-06-04 | Juki Corp | Tray-floating mechanism for sewing machine |
| CN201261402Y (en) * | 2008-09-10 | 2009-06-24 | 石家庄供电公司 | Automatic dropping trip pulley |
| CN104917098A (en) * | 2015-05-28 | 2015-09-16 | 国家电网公司 | Trip pulley capable of automatic locking |
| CN105244809A (en) * | 2015-10-29 | 2016-01-13 | 国网山东省电力公司菏泽供电公司 | Anti-disengagement type somersault tackle apparatus |
| CN206148845U (en) * | 2016-10-31 | 2017-05-03 | 国网湖南省电力公司带电作业中心 | Somersault coaster for power transmission line live working |
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| CN107492837A (en) | 2017-12-19 |
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Address after: 075000, No. 131, Wuyi Road, Qiaodong District, Hebei, Zhangjiakou Applicant after: ZHANGJIAKOU POWER SUPPLY COMPANY OF STATE GRID JINBEI ELECTRIC POWER Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Address before: 075000, No. 131, Wuyi Road, Qiaodong District, Hebei, Zhangjiakou Applicant before: ZHANGJIAKOU POWER SUPPLY COMPANY OF STATE GRID JINBEI ELECTRIC POWER Co.,Ltd. Applicant before: State Grid Corporation of China |
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