CN209223882U - A kind of generator unit stator core through screw rod fastening inspection Special assisting tool - Google Patents
A kind of generator unit stator core through screw rod fastening inspection Special assisting tool Download PDFInfo
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- CN209223882U CN209223882U CN201821839678.9U CN201821839678U CN209223882U CN 209223882 U CN209223882 U CN 209223882U CN 201821839678 U CN201821839678 U CN 201821839678U CN 209223882 U CN209223882 U CN 209223882U
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- driving lever
- screw rod
- stator core
- rotary table
- generator unit
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Abstract
It is fastened the utility model discloses a kind of generator unit stator core through screw rod and checks Special assisting tool, including support base, nut set and driving lever；The support base includes upper footstock, lower bottom base；The upper footstock and lower bottom base are integrally formed, the upper footstock includes cylindrical body and rotary table, cylindrical body is located on rotary table top, the central axis of cylindrical body and the central axis of rotary table are conllinear, center and rotary table are provided centrally with the identical central through hole of size, the lower bottom base is cylindrical shape, is provided with switch mouth on the side wall of cylinder；Driving lever, which covers nut by switch mouth, carries out continuous rotation, the switch mouth setting of the utility model can efficiently be handled stator punching elongate screw amount and efficient fastening and loosening to stator punching screw rod, reduce the time of disassembly stretcher adjustment work angle repeatedly, improve working efficiency, human resources have been saved, maintenance cost has been saved.
Description
Technical field
The utility model relates to service kit field, especially a kind of generator unit stator core through screw rod fastening checks dedicated auxiliary
Assistant engineer's tool.
Background technique
The hydro-generating Unit of hydroenergy storage station is needed when necessary in installation, maintenance process to stator core through screw rod
Dress is dismantled and fastened back, after a certain time of operation because of generator, it is found that the elongation of screw rod can reduce, the elongation of screw rod
Value directly influences the stability of unit, disassembly and returns during dress and must carry out stretching measurement and tight in strict accordance with design requirement
Gu but stator punching screw rod either measures, or fastening, and stator punching screw rod spiral shell is fastened or loosened using stretcher driving lever
Bolt, discovery stator core through screw rod stretcher support base operating space is insufficient, greatly influence working efficiency, due to certain accumulation of energy unit
There are 57 stator punching screw rods for generator, and stator punching screw rod lower part working space is narrow, in this way, when will expend a large amount of
Between, manpower, meanwhile, measured using original a whole set of stretcher, increase and injure stator bar risk and data using tool is improper
Measurement error.
In the prior art in measurement or fastening by installing stretcher and support base auxiliary tool in stator punching screw rod
On, specialized nut set is placed on nut, is stirred using dedicated driving lever and is installed on nut top nut set or is directly pulled using hammering
Hand is installed on nut, and stretcher one end takes press pump, when pressure reaches, and stator punching screw rod is made to be pulled to certain elongation, is made
Loosened or fastened with driving lever, but usually because operating space and stretcher support base open space are insufficient, driving lever or spanner without
Method is worked continuously, and need to dismantle stretcher repeatedly to adjust work angle, loosens or retention efficiency is low.
If only only integrally increasing support base, not only increase the waste of material in this way, but also is used and will appear support
Seat intensity is insufficient and the problem of deform, there is also it is inconvenient to carry, the place of narrow space it is harmless carry out using the problem of,
The use of equipment is influenced on the whole, and increases the use cost of equipment.
Following problem exists in the prior art:
One, operating space is insufficient.Because of narrow space at stator punching screw rod, it is not available other auxiliary tools and is made
Industry, and when operation improper using tool, injure stator bar risk.
Two, stretcher support base operating space is insufficient.When being loosened using driving lever or special spanner with fastening nut, Chang Yin
It is open for support base insufficient, driving lever or spanner can not work continuously, and pressure release repeatedly is needed to adjust work angle.
Three, measurement and retention efficiency are low.Since driving lever or spanner are worked continuously without operating space, so operating certain angle
Degree just needs pressure release, readjusts support base position, re-operates, a piece punching screw rod of every processing is time-consuming and laborious.
Utility model content
The purpose of utility model of the utility model is: being directed to the measurement of traditional stator punching screw rod and fastening tool or more no
Foot designs and produces a set of easy to operate, efficient stator punching screw rod measurement and fastening is special according to certain storage power plant use experience
With tool, the efficiency of service work both can be improved by the implementation of this auxiliary tool, when reducing check man, and improved inspection
Repair the reliability and stability of process.
A kind of generator unit stator core through screw rod fastening inspection Special assisting tool, including support base, nut set and driving lever；Institute
Stating support base includes upper footstock, lower bottom base；The upper footstock and lower bottom base are integrally formed, and the upper footstock includes cylindrical body and circle
Platform, cylindrical body are located on rotary table top, and the central axis of cylindrical body and the central axis of rotary table are conllinear, center and rotary table center
It is provided with the identical central through hole of size, the lower bottom base is cylindrical shape, is provided with switch mouth on the side wall of cylinder；Driving lever passes through
Switch mouth, which covers nut, carries out continuous rotation.
When needing to carry out stator core through screw rod fastening inspection, stretcher is placed on cylindrical body top center,
Then nut set is mounted on the nut of stator core through screw rod to be rotated, support base adjusts opening side according to field condition
To installation, stretcher is screwed on the thread of stator core through screw rod to be rotated, and one end of stretcher is connected to pressure pump, fixed when measurement
Two dial gauges of sub- punching screw rod upper and lower ends frame carry out reading Analysis；When fastening, it can be stirred according to fastening pressure to be rotated
The nut of stator core through screw rod is fastened, when measuring or fastener cycle, without dismantling stretcher, to can continuously grasp
Make, so that ensure that error of measured data until completing, and operation is convenient, improves efficiency.
Preferably, the nut set is circular ring shape, and the center of nut set is provided with the card slot of regular hexagon, by just
The card slot of hexagon, nut is covered to be socketed with the nut of stator core through screw rod to be rotated, and the nut puts on each positive six
Switch socket is provided on the center of side shape bevel edge, driving lever rotates nut set by being inserted into switch socket；Such as
The nut of fruit stator core through screw rod fastens very much, when necessary, can be tapped by striking wrench to driving lever, and stator is worn in realization
The fastening and loosening of the nut of heart screw rod.
Preferably, the range of the switch mouth includes at least 3 switch sockets, carries out certain angle when driving lever covers nut
Rotation after, will appear switch socket in switch mouth always and carry out insertion next time for driving lever and rotate, then operating personnel is just
Continuously operations can be carried out by the different nuts to stator core through screw rod, not need to dismantle stretcher adjustment work angle repeatedly,
Reduce the time for dismantling stretcher repeatedly, improves efficiency, saved human resources, saved maintenance cost.
Preferably, the driving lever receptacle interior is provided with antiskid thread, can increase rubbing between driving lever and driving lever socket
Power is wiped, driving lever is reduced and falls off during rotation.
Preferably, the opening angle of the switch mouth is between 120 ° to 137 °, is 120 ° in the opening angle of switch mouth
More firm support effectively can be provided for stretcher while guaranteeing continuous rotation nut set in switch mouth when to 137 °
Power, and in the angular range, it is ensured that support base is unlikely to deform.
Preferably, the driving lever be high strength steel, driving lever be long cylinder shape, one end of driving lever it is identical as driving lever socket or
Person is slightly less than driving lever socket, and the grafting that driving lever can be enable fast to consolidate enters in driving lever socket；The other end setting of driving lever is anti-
Sliding protrusion can provide stress blocking when rotating lever, prevent rotation with when hand fall off.
Preferably, support base uses high strength steel, and has carried out heat treatment with enhancing structure intensity, guarantees in use process
In will not deform.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1. the utility model support base uses high strength steel, and has carried out heat treatment with enhancing structure intensity, guarantee to make
It ensure that operating space with will not deform in the process, and to the reasonable change that support base integrally carries out in structure.
2. the switch mouth setting of the utility model can efficiently be handled stator punching elongate screw amount and right
The efficient fastening and loosening of stator punching screw rod reduce the time of disassembly stretcher adjustment work angle repeatedly, improve work
Make efficiency, saved human resources, saves maintenance cost.
3. stator punching screw rod is adjusted corresponding nut set, can be fitted extensively according to punching screw size in the utility model
Suitable for each high-power station.
4. the efficiency of service work can be improved in the utility model, when reducing check man, the reliable of maintenance process is improved
Property and stability.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is support base present invention looks up structural representation in the utility model；
Fig. 3 is that nut covers the schematic diagram of the section structure in the utility model；
Fig. 4 is that nut covers side structure schematic view in the utility model；
Fig. 5 is the structural schematic diagram of driving lever in the utility model；
Fig. 6 is that switch mouth covers switch socket angular range schematic diagram in the utility model；
Marked in the figure: 1, support base；2, nut set；3, driving lever；11, upper footstock；12, lower bottom base；13, switch mouth；14, in
Heart through-hole；111, cylindrical body；112, rotary table；21, switch socket.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is not only to solve
The utility model is released, is not used to limit the utility model.
As shown in fig. 1~fig. 5, a kind of generator unit stator core through screw rod fastening checks Special assisting tool, including support base
1, nut set 2 and driving lever 3；The support base 1 includes upper footstock 11, lower bottom base 12；12 one of the upper footstock 11 and lower bottom base
Molding, the upper footstock 11 include cylindrical body 111 and rotary table 112, and cylindrical body 111 is located in 112 top of rotary table, cylindrical body 111
Central axis and rotary table 112 central axis it is conllinear, 111 center of cylindrical body and rotary table 112 are provided centrally with the identical center of size
Through-hole 14, the lower bottom base 12 are cylindrical shape, are provided with switch mouth 13 on the side wall of cylinder；Driving lever 3 passes through 13 pairs of spiral shells of switch mouth
Mother set 2 carries out continuous rotation；
When needing to carry out stator core through screw rod fastening inspection, stretcher is placed on 111 top center position of cylindrical body
It sets, then nut set 2 is mounted on the nut of stator core through screw rod to be rotated, support base 1 is adjusted according to field condition
Opening direction installation, stretcher screw on the thread of stator core through screw rod to be rotated, and one end of stretcher is connected to pressure pump, measurement
When, two dial gauges of stator punching screw rod upper and lower ends frame carry out reading Analysis；When fastening, it can be stirred according to fastening pressure wait turn
The nut of dynamic stator core through screw rod is fastened, when measuring or fastener cycle, without dismantling stretcher, to can be continuous
Operation, so that ensure that error of measured data until completing, and operation is convenient, improves efficiency.
The nut set 2 is circular ring shape, and the center of nut set 2 is provided with the card slot of regular hexagon, passes through positive six side
The card slot of shape, nut set 2 and the nut of stator core through screw rod to be rotated are socketed, each positive six side on the nut set 2
Switch socket 21 is provided on the center of shape bevel edge, driving lever 3 covers 2 turns to nut by insertion switch socket 21
It is dynamic；If the nut of stator core through screw rod fastens very much, when necessary, driving lever 3 can be tapped by striking wrench, realization pair
The fastening and loosening of the nut of stator core through screw rod.
The range of the switch mouth 13 includes at least 3 switch sockets 21, when driving lever 3 carries out certain angle to nut set 2
Rotation after, will appear switch socket 21 in switch mouth 13 always and carry out insertion next time for driving lever 3 and rotate, then operation people
Member continuously can carry out operations by the different nuts to stator core through screw rod, not need to dismantle stretcher adjustment operation angle repeatedly
Degree reduces the time for dismantling stretcher repeatedly, improves efficiency, saved human resources, saved maintenance cost.
3 receptacle interior of driving lever is provided with antiskid thread, can increase the frictional force between 3 socket of driving lever 3 and driving lever,
Driving lever 3 is reduced to fall off during rotation.
As shown in fig. 6, the opening angle of the switch mouth 13 is between 120 ° to 137 °, in the opening angle of switch mouth 13
It can effectively be provided when being 120 ° to 137 ° while guaranteeing continuous rotation nut set 2 in switch mouth 13 for stretcher more steady
Solid support force, and in the angular range, it is ensured that support base 1 is unlikely to deform.
The driving lever 3 be high strength steel, driving lever 3 be long cylinder shape, one end of driving lever 3 it is identical as 3 socket of driving lever or
It is slightly less than 3 socket of driving lever, the grafting that driving lever 3 can be enable fast to consolidate enters in 3 socket of driving lever；The other end of driving lever 3 is arranged
Anti-skid bulge, can be provided when rotating lever 3 stress blocking, prevent rotation and when hand fall off.
Support base 1 uses high strength steel, and has carried out heat treatment with enhancing structure intensity, and guarantee in use will not
Deformation.
The present embodiment increases the overall structure of attachment base, and 1 wall thickness of support base increases, and is integrally heat-treated, to increase
Strong structure intensity.
In the present embodiment in the case where the original size of support base 1 is constant, the size of 1 wall of support base, 1 wall of support base are improved
Specific size 17.5mm, can guarantee under the size support base 1 firmly stablize under save material to greatest extent.
By taking certain power plant as an example, power plant has 8 units altogether, and every unit has 57 stator punching screw rods, altogether totally 456 hair
Motor stator core through screw rod, which needs to fasten, to be checked.
Actual benefit is as shown in the table:
It can be seen that carrying out less important work to stator punching screw rod by this auxiliary tool, the manual work time can be greatlyd save
And maintenance cost.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of generator unit stator core through screw rod fastening checks Special assisting tool, which is characterized in that including support base, nut set
And driving lever；The support base includes upper footstock, lower bottom base；The upper footstock and lower bottom base are integrally formed, and the upper footstock includes
Cylindrical body and rotary table, cylindrical body are located on rotary table top, and the central axis of cylindrical body and the central axis of rotary table are conllinear, center
It is provided centrally with the identical central through hole of size with rotary table, the lower bottom base is cylindrical shape, is provided with switch on the side wall of cylinder
Mouthful；Driving lever, which covers nut by switch mouth, carries out continuous rotation.
2. a kind of generator unit stator core through screw rod fastening according to claim 1 checks Special assisting tool, the nut
Set is circular ring shape, and the center of nut set is provided with the card slot of regular hexagon, and the nut puts on each regular hexagon bevel edge
Center on be provided with switch socket.
3. a kind of generator unit stator core through screw rod fastening according to claim 1 or 2 checks Special assisting tool, feature
It is, the range of the switch mouth includes at least 3 switch sockets.
4. a kind of generator unit stator core through screw rod fastening according to claim 3 checks Special assisting tool, feature exists
In the opening angle of the switch mouth is 120 ° to 137 °.
5. a kind of generator unit stator core through screw rod fastening according to claim 1 or 2 or 4 checks Special assisting tool,
It is characterized in that, the driving lever receptacle interior is provided with antiskid thread.
6. a kind of generator unit stator core through screw rod fastening according to claim 5 checks Special assisting tool, feature exists
In the driving lever is long cylinder shape, and one end of driving lever is identical as driving lever socket or is less than driving lever socket；The other end of driving lever
Anti-skid bulge is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821839678.9U CN209223882U (en) | 2018-11-09 | 2018-11-09 | A kind of generator unit stator core through screw rod fastening inspection Special assisting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821839678.9U CN209223882U (en) | 2018-11-09 | 2018-11-09 | A kind of generator unit stator core through screw rod fastening inspection Special assisting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209223882U true CN209223882U (en) | 2019-08-09 |
Family
ID=67502391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821839678.9U Active CN209223882U (en) | 2018-11-09 | 2018-11-09 | A kind of generator unit stator core through screw rod fastening inspection Special assisting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209223882U (en) |
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2018
- 2018-11-09 CN CN201821839678.9U patent/CN209223882U/en active Active
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