CN214698179U - Bolt fracture real-time supervision structure - Google Patents
Bolt fracture real-time supervision structure Download PDFInfo
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- CN214698179U CN214698179U CN202120014273.7U CN202120014273U CN214698179U CN 214698179 U CN214698179 U CN 214698179U CN 202120014273 U CN202120014273 U CN 202120014273U CN 214698179 U CN214698179 U CN 214698179U
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- bolt
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a real-time monitoring structure for bolt fracture, which comprises a wind generating set variable propeller, wherein a bolt is arranged on the inner side surface of the variable propeller of the wind generating set, a nut is connected outside the bolt, a concave sleeve is arranged on the outer end surface of the bolt, a pull ring is arranged on the outer end surface of the concave sleeve, the bolt and the nut are uniformly distributed on the circle surface of the variable propeller of the wind generating set, the concave sleeve is uniformly distributed and installed at the outer end of each bolt, a sleeve is inserted on the inner side surface of the pull ring, an enameled wire is inserted on the inner side surface of the sleeve, the concave sleeve is connected on the outer end surface of the bolt through threads, a concave sleeve component is arranged outside the bolt and is inserted together through the sleeve and the enameled wire, all bolts can be connected together, the enameled wire is popped out to break by the bolt when the bolt is broken, a circuit can be broken, an alarm can be carried out, and the sleeve can not be broken, the bolt can not fly off and fall down, and the inside of the machine body can not be damaged.
Description
Technical Field
The utility model relates to a bolt monitoring field, more specifically say, relate to a bolt fracture real-time supervision structure.
Background
The blades of the wind generating set are connected with a fan hub variable-pitch bearing by virtue of high-strength connecting bolts, and are influenced by multiple factors such as bolt product quality, installation process, maintenance quality, operation working conditions and the like, the high-strength connecting bolts can lose, fall off, break and the like, when the blade root connecting bolts break down, broken bolt heads do gravity acceleration motion in irregular directions in the hub and impact electrical elements, equipment, connecting cables and the like in the hub, so that electrical and mechanical equipment in the hub are damaged, and the wind generating set blades break, fall off and reverse tower accidents can be caused in serious cases, so that potential safety hazards which cannot be estimated are brought to safe and stable operation of the wind generating set;
at present, the detection of the fracture of the blade root connecting bolt mainly depends on the regular detection of a fan maintainer, so that a large amount of workload is added to the fan maintainer of a wind power plant, the regular inspection tour of a variable pitch system is generally performed once every quarter, the bolt fracture cannot be found in time, the fracture condition of the blade root connecting bolt of the wind generating set can be effectively found in time, and the workload of the wind power plant maintainer is reduced;
in the prior art, a non-contact inductive sensor is adopted to generate pulse signals in real time, acquire bolt fracture information, alarm and stop the wind turbine generator after the bolt fracture condition occurs, but the bolt fracture can only be monitored, the bolt fracture cannot be protected, and damage in the machine body can be caused when the bolt is popped up.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a bolt fracture real-time supervision structure, through set up concave cover subassembly outside the bolt, it alternates together through sleeve pipe and enameled wire, can be in the same place all bolted connection, but the bolt pops out the broken enameled wire when its fracture, but open circuit can report to the police to the sleeve pipe can not be disconnected, and the bolt can not the departure fall, can not damage inside the organism.
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides a bolt fracture real-time supervision structure, includes that wind generating set becomes the oar, the inboard surface that wind generating set becomes the oar is provided with the bolt, the bolt outer joint has the nut, the outer end surface mounting of bolt has concave cover, the outer end surface of concave cover is provided with the pull ring, bolt and nut evenly distributed become the round surface of oar at wind generating set, concave cover evenly distributed installs the outer end at every bolt, the inboard surface interlude of pull ring has the sleeve pipe, through set up concave cover subassembly outside the bolt, it alternates together through sleeve pipe and enameled wire, can be in the same place all bolted connections, and the bolt pops out the broken enameled wire when its fracture, but the open circuit can report to the police to the sleeve pipe can not be disconnected, and the bolt can not fly out and fall, can not damage organism inside.
Furthermore, an enameled wire is inserted into the inner side surface of the sleeve.
Further, the pocket is threadedly coupled to an outer end surface of the bolt.
Furthermore, the sleeve is made of aramid fiber materials, has good elasticity and is not easy to break.
Furthermore, the pull ring is made of steel wires, so that firmness is improved.
Furthermore, the outer end surface of the concave sleeve is provided with a through jack for inserting a steel wire, the inner end is twisted tightly to form a knot for fixation, and the outer end is twisted to form a pull ring, so that the assembly and the processing are convenient.
Furthermore, the outer surface of the concave sleeve is provided with a groove, and the friction force of the hand is increased when the concave sleeve is twisted.
Compared with the prior art, the utility model has the advantages of:
(1) through set up concave cover subassembly outside the bolt, it alternates together through sleeve pipe and enameled wire, can be in the same place all bolted connection, and the bolt pops out the breaking enameled wire during its fracture, but the open circuit can report to the police to the sleeve pipe can not be disconnected, and the bolt can not the departure fall, can not damage the organism inside.
(2) The sleeve is made of aramid fiber materials, has good elasticity and is not easy to break.
(3) The pull ring is made of steel wires, so that firmness is improved.
(4) The outer end surface of the concave sleeve is provided with a through jack for inserting a steel wire, the inner end is twisted tightly to form a knot for fixing, and the outer end is twisted to form a pull ring, so that the assembly and the processing are convenient.
(5) The surface of the concave sleeve is provided with a groove, and the hand friction force is increased when the concave sleeve is twisted.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side sectional view of the connection between the female housing and the bolt of the present invention;
fig. 3 is a side view of the partial structure of the concave cover of the present invention.
The reference numbers in the figures illustrate:
the wind generating set comprises 1 wind generating set variable size, 2 bolts, 3 nuts, 4 concave sleeves, 5 pull rings, 6 sleeves, 7 enameled wires and 40 grooves.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, a real-time monitoring structure for bolt fracture includes a wind generating set pitch 1, a bolt 2 is arranged on the inner side surface of the wind generating set pitch 1, a nut 3 is connected to the outside of the bolt 2, a concave sleeve 4 is installed on the outer end surface of the bolt 2, a pull ring 5 is arranged on the outer end surface of the concave sleeve 4, the bolt 2 and the nut 3 are uniformly distributed on the circle surface of the wind generating set pitch 1, the concave sleeve 4 is uniformly distributed and installed at the outer end of each bolt 2, a sleeve 6 is inserted into the inner side surface of the pull ring 5, an enameled wire 7 is inserted into the inner side surface of the sleeve 6, and the concave sleeve 4 is connected to the outer end surface of the bolt 2 through threads.
Referring to fig. 1-3, the sleeve 6 is made of aramid fiber and has good elasticity and is not easy to break, the pull ring 5 is made of steel wire to improve firmness, the outer end surface of the concave sleeve 4 is provided with through holes for inserting the steel wire, the inner end is twisted to form a knot for fixing, the outer end is twisted to form the pull ring 5, the assembly and the processing are convenient, the outer surface of the concave sleeve 4 is provided with a groove 40, and the hand friction force is increased when the concave sleeve 4 is twisted.
When in use, the outer end surface of the bolt 2 is provided with the concave sleeve 4, the concave sleeve 4 is connected with the outer end surface of the bolt 2 through threads for convenient assembly, the outer end surface of the concave sleeve 4 is provided with the pull ring 5, the bolt 2 and the nut 3 are uniformly distributed on the circle surface of the variable propeller 1 of the wind generating set, the concave sleeve 4 is uniformly distributed and installed at the outer end of each bolt 2, the inner side surface of the pull ring 5 is inserted with the sleeve 6, the inner side surface of the sleeve 6 is inserted with the enameled wire 7, the enameled wire 7 is connected with the monitoring equipment circuit, the bolt 2 can directly fly out when being broken, the bolt 2 can be hung outside the sleeve 6 through integral connection, the enameled wire 7 can be broken when flying out (the sleeve 6 cannot be broken), the circuit can be broken for alarming and is convenient to monitor, the sleeve 6 is made of aramid fiber materials and has good elasticity and is not easy to break, after a certain variable propeller bolt 2 is broken, the sleeve 6 made of aramid fiber materials can ensure that the broken bolt 2 does not fall into the hub, and mechanical and electrical equipment in the hub cannot be damaged;
the enameled wire 4 inside the sleeve 6 made of aramid fiber material is broken under the action of the ejection force of the broken bolt 2 and the self gravity, so that a 'variable pitch bolt breakage' signal is transmitted to a main control room of a wind power plant to send out an alarm, and operation and maintenance personnel of the wind power plant comprehensively judge the next processing scheme according to the alarm signal and the operation parameters of the wind turbine generator.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (7)
1. The utility model provides a bolt fracture real-time supervision structure, includes wind generating set becomes oar (1), its characterized in that: the utility model discloses a wind generating set becomes oar (1), including wind generating set, bolt (2), nut (3) are connected with outward to the inboard surface of wind generating set change oar (1), the outer end surface mounting of bolt (2) has concave cover (4), the outer end surface of concave cover (4) is provided with pull ring (5), bolt (2) and nut (3) evenly distributed become the round surface of oar (1) at wind generating set, concave cover (4) evenly distributed installs the outer end at every bolt (2), sleeve pipe (6) have been alternate to the inboard surface of pull ring (5).
2. The real-time bolt fracture monitoring structure of claim 1, characterized in that: and an enameled wire (7) is inserted into the inner side surface of the sleeve (6).
3. The real-time bolt fracture monitoring structure of claim 1, characterized in that: the concave sleeve (4) is connected to the outer end surface of the bolt (2) through threads.
4. The real-time bolt fracture monitoring structure of claim 1, characterized in that: the sleeve (6) is made of aramid fiber materials.
5. The real-time bolt fracture monitoring structure of claim 1, characterized in that: the pull ring (5) is made of steel wires.
6. The real-time bolt fracture monitoring structure of claim 1, characterized in that: the outer end surface of the concave sleeve (4) is provided with a through jack for inserting a steel wire, the inner end is twisted tightly to form a knot for fixing, and the outer end is twisted to form a pull ring (5).
7. The real-time bolt fracture monitoring structure of claim 1, characterized in that: the outer surface of the concave sleeve (4) is provided with a groove (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120014273.7U CN214698179U (en) | 2021-01-05 | 2021-01-05 | Bolt fracture real-time supervision structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120014273.7U CN214698179U (en) | 2021-01-05 | 2021-01-05 | Bolt fracture real-time supervision structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214698179U true CN214698179U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120014273.7U Active CN214698179U (en) | 2021-01-05 | 2021-01-05 | Bolt fracture real-time supervision structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214698179U (en) |
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2021
- 2021-01-05 CN CN202120014273.7U patent/CN214698179U/en active Active
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