CN207073515U - A kind of screw rod for electrical equipment fastens anti-loose structure - Google Patents
A kind of screw rod for electrical equipment fastens anti-loose structure Download PDFInfo
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- CN207073515U CN207073515U CN201720716575.2U CN201720716575U CN207073515U CN 207073515 U CN207073515 U CN 207073515U CN 201720716575 U CN201720716575 U CN 201720716575U CN 207073515 U CN207073515 U CN 207073515U
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- locking
- screw rod
- washer
- stop
- stop nut
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- 238000010276 construction Methods 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 17
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a kind of screw rod for electrical equipment to fasten anti-loose structure, including drawing screw rod, plain washer, main stop nut, lock washer, stop washer and auxiliary stop nut, draw and be provided with thread segment on screw rod, plain washer, main stop nut, lock washer, stop washer and auxiliary stop nut are sequentially arranged at from top to bottom to be drawn in screw flight section, vertically disposed locking groove is provided with the screw thread of thread segment, the lower surface that main stop nut contacts with plain washer is planar structure, the upper surface that main stop nut contacts with lock washer is the first locking chocking construction with locking tooth form, first locking chocking construction is provided with the first locking teeth of arranged at equal intervals；The lower surface that lock washer contacts with main stop nut is the second locking chocking construction with locking tooth form, and the utility model is provided with three-level and fastens locking mode, and anti-loosing effect is good, low manufacture cost, facilitates user maintenance, has a good application prospect.
Description
Technical field
It the utility model is related to technical field of installation of electric equipment, and in particular to a kind of screw rod for electrical equipment fastens
Anti-loose structure.
Background technology
The electrical equipments such as transformer, reactor, arc suppression coil cause to fasten locking due to vibration in the process of running be present
There is the phenomenon gradually loosened in the process of running in structure, and so as to cause, noise increase occurs in electric equipment operation, vibration is strengthened
Phenomena such as, or even there is situations such as electric equipment failure.Wherein, hazard of vibration is extremely obvious in reactor operation, thus causes
Security incident it is of common occurrence, the safe operation to power network brings huge potential safety hazard.
At present, it is all not ideal enough in actual motion although a variety of fastening anti-loose structures on the market be present, it is such as double
Eccentric nut fastens anti-loose structure, although with certain anti-loosing effect, in electrical equipment（Reactor）Running in
Anti-loosing effect is not ideal enough；With double-faced toothed fastening anti-loosening gasket structure, effect is fine in common anti-loose structure, in electricity
Gas equipment（Reactor）Upper using effect is also not ideal enough, and the fastening anti-loose structure also having is excessively complicated, and security can not ensure.
Therefore, currently for the fastening anti-loose structure of the large-scale electrical equipment similar to reactor, also call the roll in the morning in use or
The form of welding.Although anti-loosing effect is fine, user maintenance and replacing are not easy to, does not possess promotional value.Therefore, it is how real
A kind of existing anti-loosing effect is good, and the relatively simple screw rod fastening anti-loose structure of structure and method, are current urgent problems.
Utility model content
The purpose of this utility model is to overcome the fastening anti-loose structure for the large-scale electrical equipment similar to reactor, also
Using the pattern called the roll in the morning or welded, the problem of user maintenance is with changing is not easy to.It is of the present utility model for electrical equipment
Screw rod fastens anti-loose structure, is provided with three-level and fastens locking mode, with the use of with extraordinary anti-loosing effect and practicality,
Suitable for the fixed installation of large electric equipment, the reactor that is particularly suitable for use in, transformer, existing various loosening configurations can be overcome
Deficiency, anti-loosing effect is good, low manufacture cost, facilitates user maintenance, has a good application prospect.
In order to achieve the above object, technical scheme is used by the utility model：
A kind of screw rod for electrical equipment fastens anti-loose structure, it is characterised in that：Including drawing screw rod, plain washer, master anti-
Loose nut, lock washer, stop washer and auxiliary stop nut；
It is provided with thread segment on the drawing screw rod, the plain washer, main stop nut, lock washer, stop washer and auxiliary
Stop nut is sequentially arranged at from top to bottom to be drawn in screw flight section, and vertically disposed stop is provided with the screw thread of the thread segment
Dynamic groove；
The lower surface that the main stop nut contacts with plain washer is planar structure, the main stop nut and lock washer
The upper surface of contact is the first locking chocking construction with locking tooth form, and the first locking chocking construction is provided with equal intervals
First locking teeth of arrangement；
The lower surface that the lock washer contacts with main stop nut is the second locking chocking construction with locking tooth form,
The upper surface that the lock washer contacts with stop washer is planar structure, and the second locking chocking construction is provided with equal intervals
Second locking teeth of arrangement, the second locking chocking construction match with the shape of the first locking chocking construction and engage peace
Dress.
A kind of foregoing screw rod for electrical equipment fastens anti-loose structure, it is characterised in that：The drawing screw rod uses spiral shell
Line section sets the mode of fluting, and the fluting, which is arranged on, to be drawn in screw flight section.
A kind of foregoing screw rod for electrical equipment fastens anti-loose structure, it is characterised in that：The width of the locking groove
It is wider 0.3-0.4mm than the stop tongue on stop washer, the depth of the locking groove between 2.6-5.5mm, the locking groove with
Stop washer matches, and stop washer is fastened on and drawn on screw rod.
A kind of foregoing screw rod for electrical equipment fastens anti-loose structure, it is characterised in that：The first locking stop
Locking teeth quantity in structure, the second locking chocking construction is between 6-36.
A kind of foregoing screw rod for electrical equipment fastens anti-loose structure, it is characterised in that：The tooth ends of each locking teeth
Angle is θ 1, and the included angle of thread degree of thread segment is θ 2, and the tooth ends angle, θ 1 is more than included angle of thread degree θ 2.
A kind of foregoing screw rod for electrical equipment fastens anti-loose structure, it is characterised in that：The auxiliary stop nut is
Thick hex nut or thin hex nut.
The beneficial effects of the utility model are：Screw rod of the present utility model for electrical equipment fastens anti-loose structure, if
It is equipped with three-level and fastens locking mode, with the use of with extraordinary anti-loosing effect and practicality, suitable for large electric equipment
Fixed installation, be particularly suitable for use in reactor, can overcome the shortcomings of existing various loosening configurations, anti-loosing effect is good, is fabricated to
This is low, facilitates user maintenance, has a good application prospect.
Brief description of the drawings
Fig. 1 is the structural representation that the screw rod of the present utility model for electrical equipment fastens anti-loose structure；
Fig. 2 is the structural representation of drawing screw flight section of the present utility model；
Fig. 3 is the top view of drawing screw flight section of the present utility model；
Fig. 4 is the bottom view of main stop nut of the present utility model；
Fig. 5 is the side view of main stop nut of the present utility model；
Fig. 6 is the top view of main stop nut of the present utility model；
Fig. 7 is the bottom view of lock washer of the present utility model；
Fig. 8 is the side view of lock washer of the present utility model；
Fig. 9 is the top view of lock washer of the present utility model.
The implication marked in accompanying drawing is as follows：
1：Draw screw rod；2：Plain washer；3：Main stop nut；4：Lock washer；5：Stop washer；6：Auxiliary stop nut.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
As shown in figure 1, the screw rod of the present utility model for electrical equipment fastens anti-loose structure, including draw screw rod 1, plain cushion
Circle 2, main stop nut 3, lock washer 4, stop washer 5 and auxiliary stop nut 6,
Thread segment, the plain washer 2, main stop nut 3, lock washer 4, stop washer 5 are provided with the drawing screw rod 1
It is sequentially arranged at from top to bottom on the thread segment for drawing screw rod 1 with auxiliary stop nut 6, is provided with the screw thread of the thread segment and vertically sets
The locking groove put,
The selection of plain washer 2 is common standard fasteners, such as GB 97.1, GB97.2；
The lower surface that the main stop nut 3 contacts with plain washer 2 is planar structure, the main stop nut 3 with it is locking
The upper surface that packing ring 4 contacts is the first locking chocking construction with locking tooth form, and the first locking chocking construction is provided with
First locking teeth of arranged at equal intervals；
The lower surface that the lock washer 4 contacts with main stop nut 3 is the second locking stop knot with locking tooth form
Structure, the upper surface that the lock washer 4 contacts with stop washer 5 are planar structure, and the second locking chocking construction is provided with
The shape of second locking teeth of arranged at equal intervals, the second locking chocking construction and the first locking chocking construction matches and nibbled
Close installation.
By the way of fluting is set in thread segment, the fluting is arranged on to be drawn in screw flight section the drawing screw rod 1.
The width of the locking groove is wider 0.3-0.4mm than the stop tongue on stop washer 5, and the depth of the locking groove exists
Between 2.6-5.5mm, the specific depth of locking groove is relevant with drawing the diameter of screw rod 1, the locking groove and stop washer 5
Stop tongue it is wide match, by stop washer 5 be fastened on draw screw rod 1 on.
The stop washer 5 is common standard lock packing ring.
Locking teeth quantity on the first locking chocking construction, the second locking chocking construction is between 6-36.
The tooth ends angle of each locking teeth is θ 1, and the included angle of thread degree of thread segment is θ 2, and the tooth ends angle, θ 1 is big
In the effect that included angle of thread degree θ 2, increase fastening loosen.
The auxiliary stop nut 6 is thick hex nut or thin hex nut.
Screw rod of the present utility model for electrical equipment fastens anti-loose method, comprises the following steps,
Step（A）, screw rod 1 will be drawn to run through the bearing of electrical equipment, plain washer 2 is socketed in the thread segment of drawing screw rod 1,
And it is close to the bearing of electrical equipment；
Step（B）, main stop nut 3, lock washer 4 are tightened in the thread segment for drawing screw rod 1, main stop nut 3 successively
On the first locking chocking construction engage fixation with the second locking chocking construction of lock washer 4, realize the first order fastening it is locking,
Locking teeth quantity on the first locking chocking construction, the second locking chocking construction is between 6-36, the tooth of each locking teeth
End angle is θ 1, and the included angle of thread degree of thread segment is θ 2, and the tooth ends angle, θ 1 is more than included angle of thread degree θ 2；
Step（C）, stop washer 5 is socketed in the thread segment for drawing screw rod 1, and the stop tongue on stop washer 5 is connected to
In the locking groove of thread segment, realize that second level fastening is locking, the width of locking groove is wider 0.3- than the stop tongue on stop washer 5
0.4mm, between 2.6-5.5mm, the locking groove matches the depth of the locking groove with stop washer 5, by stop washer 5
It is fastened on and draws on screw rod 1；
Step（D）, auxiliary stop nut 6 is tightened in the thread segment for drawing screw rod 1, realizes that third level fastening is locking.
Screw rod of the present utility model for electrical equipment fastens anti-loose structure, when in use, the first of main stop nut
The toothed surface of locking chocking construction is meshed with the toothed surface of the second of lock washer the locking chocking construction, the stop of stop washer
Tongue is engaged with the locking groove of thread segment, and the fastening hexagonal fastening faceted pebble of stop washer and the auxiliary stop nut after fastening matches
Close, it is relative between the toothed surface of main stop nut and lock washer when vibrating after tightening auxiliary stop nut and stop washer
Rotate, due to θ, 1 jiao is more than 2 jiaos of θ, expansive force caused by the anti-loose structure is pinned main stop nut, is allowed to loosen.Meanwhile
Auxiliary stop nut provides the pressure for preventing loosening to lock washer, and stop washer passes through with drawing matching somebody with somebody for screw rod and auxiliary stop nut
Conjunction, which realizes, prevents the possible loosening of auxiliary stop nut, it is achieved thereby that multi-level three-level anti-loose structure and effect, reach
Extraordinary anti-loosing effect.Certainly, the method is also applied for bolt（Need clamp nut）It is locking.
In summary, the screw rod of the present utility model for electrical equipment fastens anti-loose structure, and it is anti-to be provided with three-level fastening
Loose measure formula, with the use of with extraordinary anti-loosing effect and practicality, suitable for the fixed installation of large electric equipment, especially
Suitable for reactor, existing various loosening configurations can be overcome the shortcomings of, anti-loosing effect is good, low manufacture cost, facilitates user to examine
Repair.The utility model is designed reasonably, simple in construction, anti-loosing effect is good, it is practical the characteristics of, can be widely used for transformer, electricity
Exist in the operation such as anti-device, arc suppression coil and vibrate, in the equipment equipment higher to locking requirement, it is ensured that equipment safety fastens, tool
Have that sound construction is simple, easily realize, have a good application prospect.
General principle of the present utility model, main features and advantages have been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change
And improvement, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model requires protection scope
By appended claims and its equivalent thereof.
Claims (6)
1. a kind of screw rod for electrical equipment fastens anti-loose structure, it is characterised in that：Including drawing screw rod（1）, plain washer（2）、
Main stop nut（3）, lock washer（4）, stop washer（5）With auxiliary stop nut（6）,
The drawing screw rod（1）On be provided with thread segment, the plain washer（2）, main stop nut（3）, lock washer（4）, stop
Packing ring（5）With auxiliary stop nut（6）Drawing screw rod is sequentially arranged at from top to bottom（1）Thread segment on, the screw thread of the thread segment
Vertically disposed locking groove is inside provided with,
The main stop nut（3）With plain washer（2）The lower surface of contact is planar structure, the main stop nut（3）With preventing
Loose packing ring（4）The upper surface of contact is the first locking chocking construction with locking tooth form, and the first locking chocking construction is set
It is equipped with the first locking teeth of arranged at equal intervals；
The lock washer（4）With main stop nut（3）The lower surface of contact is the second locking stop knot with locking tooth form
Structure, the lock washer（4）With stop washer（5）The upper surface of contact is planar structure, and the second locking chocking construction is set
The second locking teeth of arranged at equal intervals is equipped with, the shape of the second locking chocking construction and the first locking chocking construction matches
And engagement installation.
2. a kind of screw rod for electrical equipment according to claim 1 fastens anti-loose structure, it is characterised in that：The drawing
Screw rod（1）The thread segment of use is provided with notching construction, and the fluting, which is arranged on, to be drawn in screw flight section.
3. a kind of screw rod for electrical equipment according to claim 1 fastens anti-loose structure, it is characterised in that：It is described to stop
The width of dynamic groove compares stop washer（5）On the wide 0.3-0.4mm of stop tongue, the depth of the locking groove between 2.6-5.5mm,
The locking groove and stop washer（5）On stop tongue it is wide match, by stop washer（5）It is fastened on drawing screw rod（1）On.
4. a kind of screw rod for electrical equipment according to claim 1 fastens anti-loose structure, it is characterised in that：Described
Locking teeth quantity on one locking chocking construction, the second locking chocking construction is between 6-36.
5. a kind of screw rod for electrical equipment according to claim 4 fastens anti-loose structure, it is characterised in that：It is each locking
The tooth ends angle of tooth is θ 1, and the included angle of thread degree of thread segment is θ 2, and the tooth ends angle, θ 1 is more than included angle of thread degree θ
2。
6. a kind of screw rod for electrical equipment according to claim 1 fastens anti-loose structure, it is characterised in that：It is described auxiliary
Stop nut（6）For thick hex nut or thin hex nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720716575.2U CN207073515U (en) | 2017-06-20 | 2017-06-20 | A kind of screw rod for electrical equipment fastens anti-loose structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720716575.2U CN207073515U (en) | 2017-06-20 | 2017-06-20 | A kind of screw rod for electrical equipment fastens anti-loose structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207073515U true CN207073515U (en) | 2018-03-06 |
Family
ID=61513256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720716575.2U Active CN207073515U (en) | 2017-06-20 | 2017-06-20 | A kind of screw rod for electrical equipment fastens anti-loose structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207073515U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084184A (en) * | 2017-06-20 | 2017-08-22 | 国家电网公司 | A kind of screw rod for electrical equipment fastens anti-loose structure and method |
| CN109404401A (en) * | 2018-12-26 | 2019-03-01 | 沈阳电力勘测设计院有限责任公司 | A kind of self-tightening type bolt |
| CN109578422A (en) * | 2019-01-19 | 2019-04-05 | 山东理工大学 | A kind of locking fastening assembly |
-
2017
- 2017-06-20 CN CN201720716575.2U patent/CN207073515U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084184A (en) * | 2017-06-20 | 2017-08-22 | 国家电网公司 | A kind of screw rod for electrical equipment fastens anti-loose structure and method |
| CN109404401A (en) * | 2018-12-26 | 2019-03-01 | 沈阳电力勘测设计院有限责任公司 | A kind of self-tightening type bolt |
| CN109578422A (en) * | 2019-01-19 | 2019-04-05 | 山东理工大学 | A kind of locking fastening assembly |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: NARI Group Corp. Patentee after: State Grid Corporation of China Co-patentee after: STATE GRID ZHEJIANG ELECTRIC POWER Co. Co-patentee after: SHANGHAI RIGANG ZHIXIN NON-CRYSTAL METAL Co.,Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: NARI Group CORPORATION STATE GRID ELECTRIC POWER INSTITUTE Patentee before: State Grid Corporation of China Co-patentee before: STATE GRID ZHEJIANG ELECTRIC POWER Co. Co-patentee before: SHANGHAI RIGANG ZHIXIN NON-CRYSTAL METAL Co.,Ltd. |