CN112582959B - High-voltage power transmission tower with cable sag adjustment function - Google Patents
High-voltage power transmission tower with cable sag adjustment function Download PDFInfo
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- CN112582959B CN112582959B CN202110065975.2A CN202110065975A CN112582959B CN 112582959 B CN112582959 B CN 112582959B CN 202110065975 A CN202110065975 A CN 202110065975A CN 112582959 B CN112582959 B CN 112582959B
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- cross arm
- movable cross
- rack
- cable
- impeller
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/14—Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound
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Abstract
The invention discloses a high-voltage power transmission tower with a cable sag adjustment function, which comprises an electric tower body, wherein the left side and the right side of the electric tower body are respectively provided with a left movable cross arm and a right movable cross arm; when wind power is greater than a preset value and the impeller is driven to rotate by the wind power, the clamping block is separated from the groove, the left movable cross arm and the right movable cross arm move in opposite directions, and the cable is tightened. When wind power exceeds a preset wind power value, then under the action of the speed increaser, the connecting rod drives the fixture block to be separated, the left movable cross arm and the right movable cross arm on two sides of the electric tower body can slide relatively, so that the cable can be tightened again, the suspension degree of the cable is reduced, and the connecting rod drives the fixture block to enter the next groove for fixing, so that the left movable cross arm and the right movable cross arm are prevented from sliding relatively again.
Description
Technical Field
The invention relates to the technical field of high-voltage power transmission towers, in particular to a high-voltage power transmission tower with a cable sag adjusting function.
Background
The 110 KV-220 KV high-voltage power transmission tower is an important mode for power supply transmission in China, and has a direct relation with the economic development of China along with the development of economy and the stable development of national electric power utilities.
The high-voltage transmission tower mainly plays a role in fixing and supporting the cable, and the cable sag in the cable fixing process is one of more important control indexes. The cable is because the phenomenon that droops appears easily in effect such as self gravity in the use, along with the increase of cable degree of hanging down, the range of rocking of cable also can be along with the grow. When the suspension degree of the cable is large, the cable is greatly shaken under the influence of wind force, and under the inertia effect of cable waving, the stress on the power transmission tower is increased sharply, and the high-voltage power transmission tower is seriously broken and collapsed.
Based on this, the inventor proposes a high-voltage transmission tower with adjustable cable sag to solve the above technical problem.
Disclosure of Invention
The invention provides a high-voltage power transmission tower with cable sag adjustment, aiming at the defects in the prior art, when the wind power exceeds a preset wind power value, a connecting rod drives a clamping block to be separated under the action of a speed increaser, a left movable cross arm and a right movable cross arm on two sides of an electric tower body can slide relatively, so that the cable can be tightened again, the sag of the cable is reduced, and the connecting rod drives the clamping block to enter a next groove for fixing, so that the left movable cross arm and the right movable cross arm are prevented from sliding relatively again.
In order to solve the technical problem, the invention is solved by the following technical scheme: a high-voltage power transmission tower with a cable sag adjustment function comprises an electric tower body, wherein a left movable transverse arm and a right movable transverse arm are respectively arranged on the left side and the right side of the electric tower body, an insulating ceramic part for fixing a cable is arranged on each movable transverse arm, a plurality of connecting rods for temporarily fixing the left movable transverse arm and the right movable transverse arm are arranged between the left movable transverse arm and the right movable transverse arm, clamping blocks are arranged at two ends of each connecting rod, and a plurality of grooves for clamping the clamping blocks are formed in each of the left movable transverse arm and the right movable transverse arm; the electric tower is characterized in that a rack is additionally arranged on the electric tower body, a ventilating duct is arranged on the rack, a wind direction changing assembly and an impeller are arranged in the ventilating duct, the impeller is coaxially connected with a reversing structure and a speed increaser, the reversing structure is connected with a sliding ejector rod in a matched manner, a first spring is sleeved outside the sliding ejector rod, and the sliding ejector rod is fixedly connected with the connecting rod; the impeller is coaxially connected with a driving structure which drives the left movable cross arm and the right movable cross arm to slide oppositely; when the wind power is greater than the preset value and the impeller is driven to rotate by the wind power, the clamping block is separated from the groove, the left movable cross arm and the right movable cross arm move in opposite directions, and the cable is tightened.
Further preferably, the wind direction changing assembly comprises a baffle piece and an arc-shaped guide plate, the baffle piece is used for semi-wrapping the impeller, the arc-shaped guide plate is arranged on the inner side wall of the ventilating duct, and the baffle piece and the arc-shaped guide plate guide wind opposite to the arc-shaped guide plate to change the wind direction.
Further preferably, the reversing structure comprises a first bevel gear coaxially connected with the impeller, a second bevel gear vertically meshed with the first bevel gear is coaxially connected with a rotating block, sliding ejector rods are matched with two sides of the rotating block, and a limiting block for limiting the sliding ejector rods to only slide up and down is arranged on the rack.
Preferably, the driving structure includes a first gear coaxially connected to the impeller, the first gear is engaged with a first rack and a second rack, the first rack and the second rack are located on two sides of the first gear, the first rack is fixedly connected to the left movable cross arm, and the second rack is fixedly connected to the right movable cross arm.
Further optimizing, the number of the grooves is at least 3, and the depth of the grooves is gradually increased from the center of the electric tower body to the outer side of the electric tower body; the fixture block is internally provided with a telescopic block used for matching different depths of the groove.
Further preferably, the connecting rod, the first gear, the first rack and the second rack are all made of rigid parts.
Further optimize, the both ends opening of air funnel, and perpendicular to front view electricity tower body direction sets up.
Preferably, the rack is further provided with a sliding bottom plate for the first rack, the second rack, the left movable cross arm and the right movable cross arm to slide.
The invention has the beneficial effects that:
1. the rotation of the rotating block can be realized through the rotation of the impeller and the reversing of the first bevel gear and the second bevel gear, and the rotation of the rotating block can realize the sliding of the sliding ejector rod, so that the connecting rod and the clamping block are driven to be separated from the groove together, and the left movable cross arm and the right movable cross arm can slide relatively; the design of the first spring on the sliding ejector rod ensures that the connecting rod and the clamping block can be separated from the groove only when the wind power exceeds the acting force of the first spring; and the design of the speed increaser increases the rotating speed of the rotating block and ensures the separation of the connecting rod.
2. Impeller coaxial coupling has first gear, through first gear and first rack, the meshing of second rack, can drive first rack, the second rack removes, and under the prerequisite that the connecting rod breaks away from, can drive left side activity xarm and right side activity xarm relative motion, thereby can strain the cable conductor between electric tower body and the electric tower body, even guaranteed to have great wind-force, the cable conductor can not produce too much phenomenon of dangling yet, rocking of its cable conductor reduces greatly. And the design of the speed increaser increases the rotating speed of the first gear to ensure that the movement of the first gear can drive the first rack and the second rack to operate.
3. Along with the opposite movement of the left movable cross arm and the right movable cross arm, the fixture block on the connecting rod can enter the groove with deeper depth, if the grade of wind power is increased again, the fixture block and the telescopic block can extend out of the groove together, and then the steps are repeated to further move the left movable cross arm and the right movable cross arm in opposite directions; if wind power is not increased, the clamping block and the telescopic block cannot be separated from the groove, so that the left movable cross arm and the right movable cross arm are fixed. The distance between the left movable cross arm and the right movable cross arm can be adjusted along with the wind power, so that the tensioning degrees of different cables are realized.
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 discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of the structure of a high voltage transmission tower with cable sag adjustment according to the present invention in an initial state.
Fig. 2 is a schematic diagram of the structure of a high voltage transmission tower connecting rod with cable sag adjustment according to the present invention in motion.
Fig. 3 is a schematic diagram of a high voltage transmission tower with cable sag adjustment viewed from above in an initial state according to the present invention.
Fig. 4 is a schematic top plan view of a high voltage transmission tower connecting rod with cable sag adjustment according to the present invention.
Fig. 5 is an enlarged view of the first gear, the first rack, and the second rack in the present invention.
Fig. 6 is a partially enlarged view of fig. 1.
In the figure: the electric tower comprises an electric tower body 1, a left movable cross arm 2, a right movable cross arm 3, an insulating ceramic part 4, a connecting rod 5, a fixture block 6, a groove 7, an impeller 9, a speed increaser 10, a sliding ejector rod 11, a first spring 12, a first bevel gear 15, a second bevel gear 16, a rotating block 17, a limiting block 18, a first gear 19, a first rack 20, a second rack 21 and a sliding bottom plate 22.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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 described herein without the need for inventive work, are within the scope of the present invention.
The embodiment of the invention provides a high-voltage power transmission tower with a cable sag adjustment function, which comprises an electric tower body 1, wherein the left side and the right side of the electric tower body 1 are respectively provided with a left movable cross arm 2 and a right movable cross arm 3, the movable cross arms are provided with insulating ceramic parts 4 for fixing cables, a plurality of connecting rods 5 for temporarily fixing the left movable cross arm 2 and the right movable cross arm 3 are arranged between the left movable cross arm 2 and the right movable cross arm 3, two ends of each connecting rod 5 are provided with clamping blocks 6, and the left movable cross arm 2 and the right movable cross arm 3 are respectively provided with a plurality of grooves 7 for clamping the clamping blocks 6; the electric tower is characterized in that a rack is additionally arranged on the electric tower body 1, a ventilating duct is arranged on the rack, a wind direction changing assembly and an impeller 9 are arranged in the ventilating duct, the impeller 9 is coaxially connected with a reversing structure and a speed increaser 10, the reversing structure is connected with a sliding ejector rod 11 in a matching manner, a first spring 12 is sleeved outside the sliding ejector rod 11, and the sliding ejector rod 11 is fixedly connected with the connecting rod 5; the impeller 9 is coaxially connected with a driving structure for driving the left movable cross arm 2 and the right movable cross arm 3 to slide oppositely; when the wind power is greater than the preset value and the impeller 9 is driven to rotate by the wind power, the fixture block 6 is separated from the groove 7, the left movable cross arm 2 and the right movable cross arm 3 move oppositely, and the cable is tightened.
The first spring 12 is a preset initial wind level, and when the wind power exceeds the preset initial wind level, the left movable cross arm 2 and the right movable cross arm 3 can operate. Otherwise, when the wind power is not exceeded, the connecting rod 5 and the clamping block 6 cannot be separated from the groove 7 under the action of the first spring 12, and the left movable cross arm 2 and the right movable cross arm 3 cannot operate.
The wind direction changing assembly comprises a baffle piece and an arc-shaped guide plate, the baffle piece is used for semi-coating the impeller 9, the arc-shaped guide plate is arranged on the inner side wall of the ventilating duct, and the baffle piece and the arc-shaped guide plate guide wind opposite to the arc-shaped guide plate to change the wind direction.
The reversing structure comprises a first bevel gear 15 coaxially connected with the impeller 9, a second bevel gear 16 is vertically meshed with the first bevel gear 15, the second bevel gear 16 is coaxially connected with a rotating block 17, sliding ejector rods 11 are matched with two sides of the rotating block 17, and a limiting block 18 for limiting the sliding ejector rods 11 to only slide up and down is arranged on the rack.
The driving structure comprises a first gear 19 coaxially connected with the impeller 9, a first rack 20 and a second rack 21 are meshed with the first gear 19, the first rack 20 and the second rack 21 are positioned on two sides of the first gear 19, the first rack 20 is fixedly connected with the left movable cross arm 2, and the second rack 21 is fixedly connected with the right movable cross arm 3.
The number of the grooves 7 is at least 3, and the depth of the grooves 7 is gradually increased from the center of the electric tower body 1 to the outer side of the electric tower body 1; the fixture block 6 is internally provided with a telescopic block used for matching with different depths of the groove 7.
Wherein the design of the speed increaser 10 ensures that the rotating speed of the rotating block 17 is increased to ensure the separation of the connecting rod 5.
And the design of the speed increaser 10 increases the rotation speed of the first gear 19 to ensure that the movement of the first gear 19 can drive the first rack 20 and the second rack 21 to operate.
The connecting rod 5, the first gear 19, the first rack 20 and the second rack 21 are all made of rigid parts.
The both ends opening of air funnel, and perpendicular to 1 direction setting of positive TV electric tower body.
And the rack is also provided with a sliding bottom plate 22 for the first rack 20, the second rack 21, the left movable cross arm 2 and the right movable cross arm 3 to slide.
Through the design of the wind direction changing assembly, the wind direction of the ventilating funnel can be ensured to be kept in one direction, so that the first gear 19 rotates to enable the first rack 20 and the second rack 21 to drive the left movable cross arm 2 and the right movable cross arm 3 to move towards each other all the time.
Of course, to protect the first gear 19, the first rack 20, the second rack 21, and other components, a housing protection component may be added.
The specific application of the invention is as follows: when wind power exceeds the preset initial wind level, the wind power enters the ventilating funnel, and the wind direction changing assembly in the ventilating funnel enables the impeller 9 to rotate towards one direction, the impeller 9 rotates and drives the first bevel gear 15 and the second bevel gear 16 to rotate under the action of the speed increaser 10, and further the rotating block 17 rotates, so that the connecting rod 5 drives the clamping block 6 to be separated from the groove 7 together, and the left movable cross arm 2 and the right movable cross arm 3 can slide in opposite directions.
Meanwhile, when the impeller 9 rotates, the first gear 19 rotates under the action of the speed increaser 10, so that the first rack 20 and the second rack 21 are driven to move in the opposite direction, the left movable cross arm 2 and the right movable cross arm 3 move in the opposite direction, and a cable between the electric tower body 1 and the electric tower body 1 can be tensioned, so that the suspension height of the cable is reduced, and the influence of wind power on the cable is reduced.
When the left movable cross arm 2 and the right movable cross arm 3 move in opposite directions for a certain distance, the fixture block 6 on the connecting rod 5 enters the next groove 7, the depth of the groove 7 is larger than that of the previous groove 7, the telescopic block in the fixture block 6 automatically stretches and fills the groove 7, so that the fixture block 6 and the telescopic block can extend out of the groove 7 together when the grade of wind power is increased again, and then the steps are repeated to further move the left movable cross arm 2 and the right movable cross arm 3 in opposite directions; if the wind force is not increased, the clamping block 6 and the telescopic block cannot be separated from the groove 7, so that the left movable cross arm 2 and the right movable cross arm 3 are fixed. The distance between the left movable cross arm 2 and the right movable cross arm 3 can be adjusted along with the wind power, so that the tensioning degrees of different cables are realized.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a high-voltage power transmission tower with cable sag is adjusted, includes electric tower body (1), the electric tower body (1) left and right sides is provided with left side activity xarm (2) and right side activity xarm (3) respectively, be equipped with insulating ceramic spare (4) that are used for fixed cable on the activity xarm, its characterized in that: a plurality of connecting rods (5) for temporarily fixing the left movable cross arm (2) and the right movable cross arm (3) are arranged between the left movable cross arm (2) and the right movable cross arm (3), clamping blocks (6) are arranged at two ends of each connecting rod (5), and a plurality of grooves (7) for clamping the clamping blocks (6) are formed in the left movable cross arm (2) and the right movable cross arm (3); the electric tower is characterized in that a rack is additionally arranged on the electric tower body (1), a ventilating duct is arranged on the rack, a wind direction changing assembly and an impeller (9) are arranged in the ventilating duct, the impeller (9) is coaxially connected with a reversing structure and a speed increaser (10), the reversing structure is connected with a sliding ejector rod (11) in a matching manner, a first spring (12) is sleeved outside the sliding ejector rod (11), and the sliding ejector rod (11) is fixedly connected with the connecting rod (5); the impeller (9) is coaxially connected with a driving structure which drives the left movable cross arm (2) and the right movable cross arm (3) to slide oppositely; when the wind power is greater than the preset value and the impeller (9) is driven to rotate by the wind power, the clamping block (6) is separated from the groove (7), the left movable cross arm (2) and the right movable cross arm (3) move oppositely, and the cable is tightened.
2. The high voltage transmission tower with cable sag adjustment according to claim 1, wherein: the wind direction changing assembly comprises a baffle piece and an arc-shaped guide plate, the baffle piece is used for semi-coating the impeller (9), the arc-shaped guide plate is arranged on the inner side wall of the ventilating duct, and the baffle piece and the arc-shaped guide plate guide wind opposite to the arc-shaped guide plate to change the wind direction.
3. The high voltage transmission tower with cable sag adjustment according to claim 1, wherein: the reversing structure comprises a first bevel gear (15) coaxially connected with the impeller (9), a second bevel gear (16) is vertically meshed with the first bevel gear (15), a rotating block (17) is coaxially connected with the second bevel gear (16), sliding ejector rods (11) are matched with two sides of the rotating block (17), and a limiting block (18) for limiting the sliding ejector rods (11) to only slide up and down is arranged on the rack.
4. The high voltage transmission tower with cable sag adjustment according to claim 1, wherein: the driving structure comprises a first gear (19) coaxially connected with the impeller (9), a first rack (20) and a second rack (21) are meshed with the first gear (19), the first rack (20) and the second rack (21) are positioned on two sides of the first gear (19), the first rack (20) is fixedly connected with the left movable cross arm (2), and the second rack (21) is fixedly connected with the right movable cross arm (3).
5. The high voltage transmission tower with cable sag adjustment according to claim 1, wherein: the number of the grooves (7) is at least 3, and the depth of the grooves (7) is gradually increased from the center of the electric tower body (1) to the outer side of the electric tower body (1); the fixture block (6) is internally provided with telescopic blocks for matching with different depths of the groove (7).
6. The high voltage transmission tower with cable sag adjustment according to claim 4, wherein: the connecting rod (5), the first gear (19), the first rack (20) and the second rack (21) are all made of rigid parts.
7. The high voltage transmission tower with cable sag adjustment according to claim 1, wherein: the two ends of the ventilating duct are opened and are perpendicular to the direction of the front television tower body (1).
8. The high voltage transmission tower with cable sag adjustment according to claim 4, wherein: the rack is also provided with a sliding bottom plate (22) for the first rack (20), the second rack (21), the left movable cross arm (2) and the right movable cross arm (3) to slide.
9. The high voltage transmission tower with cable sag adjustment according to claim 2, wherein: the baffle member is "L" shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110065975.2A CN112582959B (en) | 2021-01-19 | 2021-01-19 | High-voltage power transmission tower with cable sag adjustment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110065975.2A CN112582959B (en) | 2021-01-19 | 2021-01-19 | High-voltage power transmission tower with cable sag adjustment function |
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| Publication Number | Publication Date |
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| CN112582959A CN112582959A (en) | 2021-03-30 |
| CN112582959B true CN112582959B (en) | 2022-02-11 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210002997U (en) * | 2019-04-08 | 2020-01-31 | 闽江学院 | Movable windproof electric tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101366896B1 (en) * | 2014-01-10 | 2014-02-24 | 홍기곤 | Seating device for the transmission and distribution cable, telephone poles |
| KR101394076B1 (en) * | 2014-02-21 | 2014-05-13 | (주)이림엔지니어링 | Holder for fixing the high-tension wire |
| CN206801182U (en) * | 2017-04-21 | 2017-12-26 | 沈阳工业大学 | A kind of anti-break-off type transmission tower |
| CN207069877U (en) * | 2017-07-27 | 2018-03-02 | 浙江东禾工程设计有限公司 | A kind of portable multi-function electric device |
| CN109058047B (en) * | 2018-07-10 | 2019-12-31 | 四川绿源科技有限公司 | Bidirectional power permanent magnet reversing, opening and closing, self-pressure-releasing and staggered structure wind power generation device |
| CN209199687U (en) * | 2019-01-29 | 2019-08-02 | 浙江东禾工程设计有限公司 | A kind of transmission line of electricity suspension insulator |
| CN209855353U (en) * | 2019-02-15 | 2019-12-27 | 河北中原铁塔制造有限公司 | Power transmission line iron tower mounted on top of building |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210002997U (en) * | 2019-04-08 | 2020-01-31 | 闽江学院 | Movable windproof electric tower |
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