CN214786698U - Based on transmission line steel pipe tower vortex induced vibration fatigue damage detection device - Google Patents
Based on transmission line steel pipe tower vortex induced vibration fatigue damage detection device Download PDFInfo
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- CN214786698U CN214786698U CN202023186858.1U CN202023186858U CN214786698U CN 214786698 U CN214786698 U CN 214786698U CN 202023186858 U CN202023186858 U CN 202023186858U CN 214786698 U CN214786698 U CN 214786698U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 68
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000007689 inspection Methods 0.000 claims abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Abstract
本实用新型涉及疲劳损伤检测技术领域，公开了一种基于输电线路钢管塔涡激振动疲劳损伤检测装置，包括安装架，安装架的顶部安装有疲劳损伤检测机构主体，安装架的正面安装有正面开口的主控箱，主控箱的箱口通过对称设置的铰链共同铰接有检修门，检修门远离铰链的一端通过锁死机构与主控箱相连接；锁死机构包括传动槽，传动槽开设在检修门远离铰链的一端，主控箱对应传动槽位置的内箱壁上开设有锁死槽，锁死槽内设有剖面为等腰梯形的锁死块，锁死块远离锁死槽槽底的一端穿过锁死槽的槽口并固定连接有传动块，传动块远离锁死块的一端延伸至传动槽中。本实用新型只需对检修门施加足够大的力，即可便捷完成检修门的打开以及闭合。
The utility model relates to the technical field of fatigue damage detection, and discloses a fatigue damage detection device based on vortex-induced vibration of a steel pipe tower of a transmission line. The open main control box, the box mouth of the main control box is jointly hinged with an inspection door through symmetrically arranged hinges, and the end of the inspection door away from the hinge is connected with the main control box through a locking mechanism; the locking mechanism includes a transmission slot, and the transmission slot opens At the end of the inspection door away from the hinge, a locking slot is provided on the inner box wall of the main control box corresponding to the position of the transmission slot. The locking slot is provided with a locking block with an isosceles trapezoid section, and the locking block is far away from the locking slot. One end of the bottom passes through the notch of the locking groove and is fixedly connected with a transmission block, and one end of the transmission block away from the locking block extends into the transmission groove. The utility model can conveniently complete the opening and closing of the access door only by exerting a sufficiently large force on the access door.
Description
Technical Field
The utility model relates to a fatigue damage detects technical field, especially relates to a based on transmission line steel-pipe tower vortex induced vibration fatigue damage detection device.
Background
The traditional power transmission iron tower mainly adopts hot-rolled angle steel profiles which are connected by bolts, and has the advantages of simple structure, convenient transportation and mature technology. However, with the application of new power transmission technologies such as the same-tower double-circuit line, the compact line, the multi-split large-section wire and the like and the construction of the extra-high voltage power grid, the angle steel structure is more and more difficult to meet the requirements for large load and large size. The steel tube tower has small wind pressure bearing capacity, large section bending rigidity and clear force transmission, can fully exert the bearing performance of materials, and is increasingly applied to circuits with different voltage grades. However, steel tube towers also have disadvantages in that steel tube members are susceptible to vortex-induced vibration at low wind speeds. This is because when wind flows through the steel pipe member, vortices are generated on both sides of the steel pipe member, which alternately drop off, and vortex-induced forces having periodic characteristics perpendicular to the wind direction are formed on the steel pipe member, which causes the steel pipe member to generate vortex-induced vibrations in the cross-wind direction. When the frequency of vortex shedding is close to the natural frequency of the steel pipe member, the vibration becomes more remarkable, and the steel pipe member is easily damaged. In order to avoid the situation, the steel tube tower generally needs to be regularly detected through a fatigue damage detection device, an access door is generally fixed through a lock body in the using process of the conventional fatigue damage detection device, and the access door is difficult to open and close when maintenance is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art detection device's access door and generally all fixing through the lock body, when needs dimension guarantor, the access door exists and is difficult to open and closed problem, and the one that proposes is based on transmission line steel pipe tower vortex induced vibration fatigue damage detection device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fatigue damage detection device based on vortex-induced vibration of a steel tube tower of a power transmission line comprises a mounting frame, wherein a fatigue damage detection mechanism main body is installed at the top of the mounting frame, a main control box with an opening in the front surface is installed on the front surface of the mounting frame, box openings of the main control box are hinged to an access door through hinges which are symmetrically arranged, and one end, far away from the hinges, of the access door is connected with the main control box through a locking mechanism;
the dead mechanism of lock includes the driving groove, the one end that the hinge was kept away from at the access door is seted up to the driving groove, the dead groove has been seted up on the inner tank wall that the master control box corresponds the driving groove position, it is isosceles trapezoid's dead piece to be equipped with the section in the dead groove, the dead groove tank bottom was kept away from to the dead piece one end passes the notch and the fixedly connected with driving block of dead groove, the dead piece was kept away from to the driving block one end extends to in the driving groove, symmetrical fixedly connected with slider on the lateral wall of dead piece one end position is kept away from to the driving block, the assorted spout has been seted up to the position that corresponds the slider on the cell wall of driving groove, slider sliding connection is in the spout that corresponds, the dead groove's one end fixedly connected with spring is kept away from to the slider, the other end fixed connection of spring is on the corresponding cell wall of spout.
Preferably, one end of the access door, which is far away from the bottom of the main control box, is fixedly connected with a pull handle, and the pull handle is far away from the hinge.
Preferably, a sliding rod is fixedly connected in the sliding groove, the sliding rod penetrates through the sliding block, and the sliding block is connected to the rod wall of the sliding rod in a sliding mode.
Preferably, the center of the bottom of the transmission groove is fixedly connected with a limiting pipe, a limiting rod is inserted into the limiting pipe, and one end, far away from the bottom of the transmission groove, of the limiting rod penetrates through a corresponding pipe orifice of the limiting pipe and is fixedly connected to one end, far away from the locking block, of the transmission block.
Preferably, the spring is sleeved on the rod wall of the sliding rod.
Preferably, one side of the access door close to the bottom of the main control box is provided with a limiting block, and the limiting block is fixedly connected to the corresponding inner box wall of the main control box.
Compared with the prior art, the utility model provides a based on transmission line steel-pipe tower vortex induced vibration fatigue damage detection device possesses following beneficial effect:
according to the detection device for the vortex-induced vibration fatigue damage of the steel tube tower based on the power transmission line, due to the fact that the locking mechanism is arranged, when an access door needs to be opened, outward pulling force is directly applied to the access door, the access door drives the locking block to rotate outwards, the inclined surface of the locking block is in contact with the wall of the locking groove, along with the increase of the stress of the locking block, the locking block is stressed to drive the transmission block to move towards the transmission groove, the sliding block is further driven to synchronously move in the sliding groove, the transmission block drives the locking block to be separated from the locking groove while the spring in the sliding groove is compressed, the access door can be opened from the main control box, and the inside of the access door is maintained; on the contrary, exert and close the power to the access door, when the access door closed to the case mouth of master control case, the inclined plane of the dead piece of lock pushed up the case mouth at the master control case earlier, along with the increase of pressure that the access door received, the dead piece of lock drives the transmission piece to the motion of transmission groove, close the case mouth at the master control case until the access door, the spring of compressed promotes the transmission piece and resets, and then in will locking the dead piece bullet and going into the dead groove of lock, accomplish fixedly to the access door, only need exert enough big power to the access door, can conveniently accomplish opening and the closure of access door.
The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses only need exert enough big power to the access door, can conveniently accomplish opening and closing of access door.
Drawings
Fig. 1 is a schematic structural view of a transmission line steel pipe tower vortex-induced vibration fatigue damage detection device according to the present invention;
fig. 2 is a schematic structural view of a connection part of a main control box and an access door in the transmission line steel pipe tower vortex-induced vibration fatigue damage detection device provided by the utility model;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: the fatigue damage detection mechanism comprises a mounting frame 1, a fatigue damage detection mechanism body 2, a main control box 3, an access door 4, a transmission groove 5, a locking groove 6, a locking block 7, a transmission block 8, a sliding block 9, a sliding groove 10, a spring 11, a pull handle 12, a sliding rod 13, a limiting pipe 14, a limiting rod 15 and a limiting block 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, the device for detecting the fatigue damage based on the vortex-induced vibration of the steel tube tower of the power transmission line comprises a mounting frame 1, a fatigue damage detection mechanism main body 2 is mounted at the top of the mounting frame 1, a main control box 3 with an opening in the front side is mounted on the front side of the mounting frame 1, box openings of the main control box 3 are hinged to an access door 4 through hinges which are symmetrically arranged, and one end, far away from the hinges, of the access door 4 is connected with the main control box 3 through a locking mechanism;
the locking mechanism comprises a transmission groove 5, the transmission groove 5 is arranged at one end of the access door 4 far away from the hinge, a locking groove 6 is arranged on the inner box wall of the main control box 3 corresponding to the position of the transmission groove 5, a locking block 7 with an isosceles trapezoid section is arranged in the locking groove 6, one end of the locking block 7 far away from the bottom of the locking groove 6 passes through the notch of the locking groove 6 and is fixedly connected with a transmission block 8, one end of the transmission block 8 far away from the locking block 7 extends into the transmission groove 5, sliding blocks 9 are symmetrically and fixedly connected on the side wall of the transmission block 8 far away from one end of the locking block 7, matched sliding grooves 10 are arranged on the groove wall of the transmission groove 5 corresponding to the sliding blocks 9, the sliding blocks 9 are slidably connected in the corresponding sliding grooves 10, one end of the sliding blocks 9 far away from the locking groove 6 is fixedly connected with a spring 11, the other end of the spring 11 is fixedly connected on the corresponding groove wall of the sliding grooves 10, when the access door 4 needs to be opened, the access door 4 is directly exerted with outward pulling force, the access door 4 drives the locking block 7 to rotate outwards, the inclined surface of the locking block 7 is in contact with the groove wall of the locking groove 6, along with the increase of the stress of the locking block 7, the locking block 7 drives the transmission block 8 to move towards the transmission groove 5 under the stress of the locking block 7, the sliding block 9 is further driven to synchronously move in the sliding groove 10, the transmission block 8 drives the locking block 7 to be separated from the locking groove 6 while the spring 11 in the sliding groove 10 is compressed, the access door 4 can be opened from the main control box 3, and the inside of the access door is maintained; on the contrary, exert the closing force to access door 4, when access door 4 closed to the case mouth of master control case 3, the inclined plane of the dead piece of lock 7 pushed up the case mouth at master control case 3 earlier, along with access door 4 receives the increase of pressure, the dead piece of lock 7 drives transmission piece 8 to 5 to the motion of transmission groove, close the case mouth at master control case 3 until access door 4, compressed spring 11 promotes transmission piece 8 and resets, and then in will locking the dead piece of lock 7 spring-in dead groove 6, accomplish fixedly to access door 4, only need exert enough big power to access door 4, can conveniently accomplish opening and closing of access door 4.
One end of the access door 4 far away from the bottom of the main control box 3 is fixedly connected with a pull handle 12, the pull handle 12 is far away from the hinge, and the pull handle 12 is held to apply force to the access door 4 conveniently.
A sliding rod 13 is fixedly connected in the sliding groove 10, the sliding rod 13 penetrates through the sliding block 9, and the sliding block 9 is connected to the rod wall of the sliding rod 13 in a sliding mode, so that the sliding block 9 moves in the sliding groove 10 more stably.
The tank bottom center department fixedly connected with of driving groove 5 is spacing pipe 14, spacing pipe 14 interpolation is equipped with gag lever post 15, and the one end that 5 tank bottoms of driving groove were kept away from to gag lever post 15 passes the corresponding mouth of pipe and the one end that fixed connection kept away from locking piece 7 at driving block 8 of spacing pipe 14, drives gag lever post 15 and slides in spacing pipe 14 when driving block 8 moves for driving block 8 moves more stably in driving groove 5.
The spring 11 is sleeved on the rod wall of the sliding rod 13.
One side that access door 4 is close to the 3 bottom of the case of master control case is equipped with stopper 16, and stopper 16 fixed connection carries on spacingly through stopper 16 to access door 4's rotation orbit on master control case 3's the corresponding inner tank wall.
In the utility model, when the access door 4 needs to be opened, an outward pulling force is directly applied to the access door 4, the access door 4 drives the locking block 7 to rotate outwards, the inclined plane of the locking block 7 is in contact with the wall of the locking groove 6, along with the increase of the force applied to the locking block 7, the locking block 7 is forced to drive the transmission block 8 to move into the transmission groove 5, and further the sliding block 9 is driven to move synchronously in the sliding groove 10, the transmission block 8 drives the locking block 7 to be separated from the locking groove 6 while compressing the spring 11 in the sliding groove 10, so that the access door 4 can be opened from the main control box 3, and the inside is maintained; on the contrary, exert the closing force to access door 4, when access door 4 closed to the case mouth of master control case 3, the inclined plane of the dead piece of lock 7 pushed up the case mouth at master control case 3 earlier, along with the increase of the pressure that access door 4 receives, the dead piece of lock 7 drives transmission piece 8 to 5 to the motion of transmission groove, close the case mouth at master control case 3 until access door 4, compressed spring 11 promotes transmission piece 8 and resets, and then in going into the dead groove of lock 6 with the dead piece of lock 7 bullet, accomplish fixedly to access door 4, only need exert enough big power to access door 4, can conveniently accomplish opening and closing of access door 4.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023186858.1U CN214786698U (en) | 2020-12-26 | 2020-12-26 | Based on transmission line steel pipe tower vortex induced vibration fatigue damage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023186858.1U CN214786698U (en) | 2020-12-26 | 2020-12-26 | Based on transmission line steel pipe tower vortex induced vibration fatigue damage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214786698U true CN214786698U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023186858.1U Expired - Fee Related CN214786698U (en) | 2020-12-26 | 2020-12-26 | Based on transmission line steel pipe tower vortex induced vibration fatigue damage detection device |
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| Country | Link |
|---|---|
| CN (1) | CN214786698U (en) |
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2020
- 2020-12-26 CN CN202023186858.1U patent/CN214786698U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |