阅读说明：本技术 发电机定子铁芯绝缘检测装置及检测方法 (Electricity generator stator core insulation detection device and detection method ) 是由 李天辉 刘宏亮 张建忠 侯双林 张志猛 田霖 于 2019-07-29 设计创作，主要内容包括：本发明提供了一种发电机定子铁芯绝缘检测装置及检测方法,属于发电机定子铁芯检测技术领域,所述发电机定子铁芯绝缘检测装置包括导轨和转动机构,所述导轨穿设在定子和转子之间的间隙中,所述导轨上设有用于安装检测仪器的载具,所述载具在牵引组件的驱动下沿所述导轨移动,所述牵引组件的动力部件设置在所述间隙之外,所述转动机构设有位于所述间隙两端的两个环形件,所述导轨的两端连接在所述环形件上,所述导轨借助所述转动机构在所述间隙中周向转动；利用本发明提供的发电机定子铁芯绝缘检测装置结合检测方法能够在不抽转子且不拆卸下端盖的情况下便捷高效的对定子铁芯进行绝缘检测。(The present invention provides a kind of electricity generator stator core insulation detection device and detection methods, belong to electricity generator stator core detection technique field, the electricity generator stator core insulation detection device includes guide rail and rotating mechanism, the guide rail is worn in gap between the stator and the rotor, the guide rail is equipped with the carrier for installing detecting instrument, carrier guide rail described in the driving lower edge of traction component is mobile, the power part of the traction component is arranged except the gap, the rotating mechanism is equipped with two annular elements positioned at the gap both ends, the both ends of the guide rail are connected on the annular element, the guide rail circumferentially rotates in the gap by the rotating mechanism；Using electricity generator stator core insulation detection device combination detection method provided by the invention can in the case where not taking out rotor and not dismantling lower cover convenient and efficient to stator core carry out Insulation monitoring.)

1. electricity generator stator core insulation detection device characterized by comprising

Guide rail is worn in gap between the stator and the rotor, and the guide rail is equipped with the carrier for installing detecting instrument, institute It is mobile to state carrier guide rail described in the driving lower edge of traction component, the power part setting of the traction component the gap it Outside；

Rotating mechanism, equipped with two annular elements for being located at the gap both ends, the both ends of the guide rail are connected to the annular element On, the guide rail circumferentially rotates in the gap by the rotating mechanism.

2. electricity generator stator core insulation detection device as described in claim 1, which is characterized in that the annular element fixation is set It sets.

3. electricity generator stator core insulation detection device as claimed in claim 2, which is characterized in that borrow at the both ends of the guide rail Sliding component is helped to be flexibly connected with the annular element, the annular element is equipped with the annular groove for being clamped the sliding component for activity.

4. electricity generator stator core insulation detection device as claimed in claim 3, which is characterized in that the sliding component includes arc Shape block and link block, the arc block are located in the annular groove and both ends and are equipped with the idler wheel for rolling clamping with the annular groove, The link block is fixedly connected with the arc block and stretches out outside the annular groove, and the link block is for being fixedly connected with described lead Rail.

5. electricity generator stator core insulation detection device as claimed in claim 2, which is characterized in that the annular element is equipped with Fixing groove, the guide rail is relatively fixed by the fixed block being adapted to fixing groove and the annular element, the fixed block with it is described Guide rail is fixedly connected.

6. electricity generator stator core insulation detection device as claimed in claim 5, which is characterized in that the fixing groove is equipped with more A and circumferential direction is evenly arranged on the end face of the annular element, the central angle of the central angle between the fixing groove and stator between cog Match.

7. electricity generator stator core insulation detection device as claimed in claim 2, which is characterized in that the annular element is by The U-shaped seat set is fixed on rotor main shaft.

8. electricity generator stator core insulation detection device as claimed in claim 7, which is characterized in that the annular element is by two The sub- annular element of arc forms, and the sub- annular element is removably connected.

9. electricity generator stator core insulation detection device as claimed in claim 8, which is characterized in that in the sub- annular element One with the U-shaped seat is detachable is fixedly connected.

10. using the described in any item electricity generator stator core insulation detection devices of claim 1 to 9 to electricity generator stator core The detection method detected, which comprises the following steps:

The guide rail is penetrated the gap by S1；

The rotating mechanism is arranged and is connected on the annular element at the gap both ends, and by the both ends of the guide rail by S2；

S3 drives the carrier to move along the guide rail, in moving process, is mounted on the carrier using the traction component Detecting instrument stator core is detected, detection range can be a stator tooth or multiple stator tooths；

S4, if being circumferentially rotated by rotating mechanism to the guide rail there are also the stator tooth not detected, making the guide rail With the stator tooth that did not detected to just；

S5 repeats S3 and S4 until the detection of all stator tooths is completed.

Technical field

The invention belongs to electricity generator stator core detection technique fields, are to be related to a kind of generator unit stator more specifically Core insulation detection device and detection method.

Background technique

In all multi-methods of Generator Stator core insulation detection, low excitation method is easy to operate with its, safety is The advantages that number is high is widely applied.The principle of low excitation method is to detect core stamping short dot magnetic field by magnetic potentiometer to become Change, judges whether iron core occurs short trouble according to faradic size；It needs to make the detection coil of semi-closed along fixed in detection The length direction of sub- tooth is mobile, the other end mobile from one end of stator core；It has detected a tooth and has been moved to next tooth, then The length of a mobile stator core；Detection coil needs the length direction along stator tooth at the uniform velocity to move in the process, with Obtain accurate detection electric current.

In well known technology, in order to move detection coil along the length direction of stator tooth automatically, engineering staff is by climbing Guide rail is arranged in row robot on stator core, and carrier is arranged on guide rail, is mounted on carrier by will test coil and is carried out Detection.For first method, climbing robot stability is poor, and the gap between rotor is narrow, once in crawling process Middle failure is difficult to handle, while the cost of climbing robot is also costly；In second method, a stator tooth has been detected After need to remove guide rail from stator core, be moved on the stator tooth not detected and fixed again, it is fixed under normal circumstances Sub- number of teeth amount is more, and the process of moving guide rail is time-consuming and laborious, and has the risk of damage stator core insulation layer.

Summary of the invention

The purpose of the present invention is to provide a kind of electricity generator stator core insulation detection device and detection methods, it is intended to solve Above-mentioned the problems of the prior art, in the case where not taking out rotor, realization stator core insulation quickly and efficiently is detected.

To achieve the above object, the technical solution adopted by the present invention is that, a kind of electricity generator stator core Insulation monitoring is provided Device, comprising:

Guide rail is worn in gap between the stator and the rotor, and the guide rail is equipped with the load for installing detecting instrument Tool, carrier guide rail described in the driving lower edge of traction component is mobile, and the power part of the traction component is arranged described Except gap；

Rotating mechanism, equipped with two annular elements for being located at the gap both ends, the both ends of the guide rail are connected to the ring On shape part, the guide rail circumferentially rotates in the gap by the rotating mechanism.

Further, the annular element fixed setting.

Further, the both ends of the guide rail are flexibly connected by sliding component with the annular element, are set on the annular element There is the annular groove that the sliding component is connect for active card.

Further, the sliding component includes arc block and link block, and the arc block is located in the annular groove and two End is equipped with the idler wheel that clamping is rolled with the annular groove, and the link block is fixedly connected with the arc block and stretches out the annular Outside slot, the link block is for being fixedly connected with the guide rail.

Further, the annular element is equipped with fixing groove, and the guide rail is by the fixed block and institute being adapted to fixing groove It is relatively fixed to state annular element, the fixed block is fixedly connected with the guide rail.

Further, the fixing groove is equipped with multiple and is circumferentially evenly arranged on the end face of the annular element, the fixing groove Between central angle matched with the central angle of stator between cog.

Further, the annular element is fixed on rotor main shaft by inverted U-shaped seat.

Further, the annular element is made of the sub- annular element of two arcs, and the sub- annular element is removably connected.

Further, one in the sub- annular element with the U-shaped seat is detachable is fixedly connected.

Electricity generator stator core insulation detection device provided by the invention is not being extracted rotor out compared with prior art In the case where, gap both ends between the stator and the rotor are equipped with rotating mechanism, when carrier is in the driving of traction component when detection Under from one end of stator be moved to the other end complete a stator tooth detection after, guide rail can be by rotating mechanism quickly and efficiently Circumferentially rotate, turn to next measurement position, the stator tooth for measuring guide rail and next band is to just；Avoid the prior art It is middle that guide rail is removed to the complicated processes installed again from stator core, detection efficiency is improved, labor intensity is reduced；In addition, institute The climbing robot of traction component compared to the prior art is stated, power part is arranged except the gap, even if power part It goes wrong, might as well repair, improve carrier and drive detecting instrument reliability of operation.

The present invention also provides using above-mentioned electricity generator stator core insulation detection device to electricity generator stator core into The detection method of row detection, comprising the following steps:

The guide rail is penetrated the gap by S1；

The rotating mechanism is arranged and is connected to the annular at the gap both ends, and by the both ends of the guide rail by S2 On part；

S3 drives the slide assemblies to move along the guide rail, in moving process, is mounted on institute using the traction component The detecting instrument stated on slide assemblies detects stator core, and detection range can be a stator tooth or multiple stators Tooth；

S4 makes described if circumferentially rotating by rotating mechanism to the guide rail there are also the stator tooth not detected Guide rail and the stator tooth not detected are to just；

S5 repeats S3 and S4 until the detection of all stator tooths is completed.

Electricity generator stator core is carried out in the case where not taking out rotor and not dismantling lower cover by the above method fast Prompt efficient Insulation monitoring.

Detailed description of the invention

It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is the structural schematic diagram of electricity generator stator core insulation detection device provided in an embodiment of the present invention；

Fig. 2 is the structural schematic diagram of rail end provided in an embodiment of the present invention；

Fig. 3 is the structure composition schematic diagram of sub- guide rail provided in an embodiment of the present invention；

Fig. 4 is the structural schematic diagram that rotating mechanism provided in an embodiment of the present invention is connect with guide rail；

Fig. 5 is the structural schematic diagram of sliding component provided in an embodiment of the present invention；

Fig. 6 is that the structural scheme of mechanism on rotor main shaft is arranged in rotating mechanism provided in an embodiment of the present invention；

Fig. 7 is the structure composition schematic diagram of annular element provided in an embodiment of the present invention；

Fig. 8 is the structural schematic diagram that sub- annular element provided in an embodiment of the present invention is connect with U-shaped seat；

Fig. 9 is that the structural schematic diagram on guide rail is arranged in rolling frame provided in an embodiment of the present invention；

Figure 10 is the structural schematic diagram of rolling frame provided in an embodiment of the present invention；

Figure 11 is the flow chart of electricity generator stator core insulation detecting method provided by the invention.

In figure: 1, guide rail；11, detecting instrument；12, carrier；13, connecting plate；14, taper hole；15, inserted link；16, rolling frame；2, Rotating mechanism；21, annular element；22, sliding component；23, annular groove；24, fixing groove；25, fixed block；26, U-shaped seat；27, it installs Plate；28, the first centering block；29, the second centering block；221, arc block；222, link block；223, idler wheel；224, fixed arm；3, fixed Son；4, rotor；41, rotor main shaft.

Specific embodiment

In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only To explain the present invention, it is not intended to limit the present invention.

Also referring to Fig. 1 and Fig. 2, now electricity generator stator core insulation detection device provided by the invention is said It is bright.The electricity generator stator core insulation detection device, including guide rail 1 and rotating mechanism 2；Guide rail 1 is threaded through stator 3 and rotor In gap between 4, guide rail 1 is equipped with the carrier 12 for installing detecting instrument 11, and carrier 12 is under the driving of traction component It is moved along guide rail 1；Rotating mechanism 2 is equipped with two annular elements 21 positioned at the gap both ends, and the both ends of guide rail 1 are connected to annular On part 21, guide rail 1 circumferentially rotates in the gap by rotating mechanism 2, and the power part of the traction component is arranged in institute It states except gap.

Electricity generator stator core insulation detection device provided by the invention is not being extracted rotor 4 out compared with prior art In the case where, gap both ends between stator 3 and rotor 4 are equipped with rotating mechanism 2, when carrier 12 is in traction component when detection Under driving after the detection that one end of stator 3 is moved to that the other end completes a stator tooth, guide rail 1 can be by rotating mechanism 2 Circumferentially rotating quickly and efficiently, turns to next measurement position, and the stator tooth for measuring guide rail 1 and next band is to just；It avoids In the prior art guide rail 1 is removed into the complicated processes installed again from stator core, improve detection efficiency, it is strong to reduce labour Degree；In addition, the climbing robot of the traction component compared to the prior art, power part is arranged except the gap, i.e., So that power part is gone wrong, might as well repair, improves carrier 12 and drive detecting instrument reliability of operation.

Guide rail 1 is generally spliced by the sub- guide rail of multistage, as shown in figure 3, the sub- guide rail parallel divides guide rail by two It is bolted；Side divides guide rail to be equipped with taper hole 14, divides the frustum of a cone grafting being arranged on guide rail with the other side It is used cooperatively, by two points of guide rails to positive clamping, guarantees that two points of guide rails are parallel to each other to just；One end of sub- guide rail is equipped with inserted link Jack grafting on 15, with another sub- guide rail is simultaneously bolted to connection, the guide rail 1 of length needed for being formed, the length of guide rail 1 Degree is not less than the length of stator 3；As shown in Fig. 2, guide rail 1 is equipped with the wheel rolling clamping on wheel slot, with carrier 12；It is described It is formed with card slot between two wheel rims of wheel, rolls oneself of clamping other directions of limiting wheel with the strip in the wheel slot By spending, it roll wheel can only along the length direction of guide rail 1, even if the inclination of guide rail 1 or inversion, the clamping that wheel also can be stable In wheel slot.

In stator core insulation detection, the detecting instrument can be chattock magnetic potentiometer, the chattock magnetic Position is calculated as a semi-closed coil, for constituting closed circuit with stator core and air；Carrier 12 can also carry other inspections Instrument is surveyed, such as camera can be carried, acquires the image of stator core；The direction for changing detecting instrument 11 is allowed to direction and turns The side of son can also carry out the coherent detection of rotor by the present apparatus.

The traction component is generally two, is separately positioned on the gap both ends, drawing of the carrier 12 in traction component It is lower to be moved along guide rail 1；The traction component generally comprises servo motor and reel, is moved by cable traction carrier 12 along guide rail 1 It is dynamic.The extension end of sliding component 22 can be arranged in the servo motor and reel by attachment base, with sliding component 22 with guide rail 1 one It rises circumferential mobile；When necessary can the end of guide rail 1 be arranged guide wheel, change the trend of the rope, the reel can not With carrier 12 in the case where just, parallel rope will be moved towards with guide rail 1 and change trend to be connected on reel, guarantee traction component It can be walked by the stable driving carrier 12 of rope.Servo motor can be such that carrier 12 at the uniform velocity moves along guide rail 1, guarantee detection Electric current is accurate and easily identifies fault point；The traction component can also be that reel, the reel are arranged by bracket The extension end of sliding component 22 is wound with the rope of connection carrier 12 on reel；Crank is set on one side end face of reel, is led to Artificial shake crank is crossed, reel can uniformly rotate, and driving carrier 12 at the uniform velocity moves；It is simple to wind wheel construction, occupies little space, It therefore under normal circumstances can be with carrier 12 to just, it is not necessary to the guide wheel be set and change rope path；It should be noted people Work must at the uniform velocity shake when shaking reel, to guarantee that 12 speed of carrier is uniform.

As a kind of specific embodiment of electricity generator stator core insulation detection device provided by the invention, annular element 21 Fixed setting.As shown in Figure 1, annular element 21 can be fixed on rotor main shaft 41, annular element 21 can also be fixedly installed On the shell of generator.There are two types of the modes for circumferentially rotating guide rail 1 by annular element 21, and it is fixed that one is annular elements 21, The both ends of guide rail 1 are flexibly connected with annular element 21, and another kind is that annular element 21 is spindle rotationally arranged in the gap both ends, at this time The both ends of guide rail 1 can be fixedly connected on annular element 21.

As a kind of specific embodiment of the embodiment of the present invention, referring to Fig. 3, the both ends of guide rail 1 are by sliding component 22 It is flexibly connected with annular element 21, annular element 21 is equipped with the annular groove 23 for activity clamping sliding component 22.Sliding component 22 is in ring It is circumferentially moved in shape slot 23, so that the guide rail 1 being attached thereto be driven circumferentially to turn in the gap between stator 3 and rotor 4 It is dynamic.

As a kind of specific embodiment of the embodiment of the present invention, referring to Fig. 5, sliding component 22 includes 221 He of arc block Link block 222, arc block 221 are located in annular groove 23 and both ends and are equipped with the idler wheel 223 for rolling clamping with annular groove 23, link block 222 are fixedly connected with arc block 221 and stretch out outside annular groove 23, and link block 222 is for being fixedly connected with guide rail 1.Arc block 221 The inner wall sliding contact of front and back sides and annular groove 23, the lower arcuate side of arc block 221 do not connect with the inner wall of annular groove 23 Touching, does not generate friction.Idler wheel 223 is hinged on the both ends of arc block 221, and the diameter of idler wheel 223 is equal to the height of annular groove 23, rolling The thickness of wheel 223 is not more than the width of annular groove 23；Idler wheel 223 is used to reduce resistance when sliding component 22 moves in annular groove 23 Power keeps circumferentially rotating for guide rail 1 more convenient laborsaving.Link block 222 is equipped with long slot hole, with the company that 1 both ends of guide rail are arranged in Fishplate bar 13 is bolted to connection.

As a kind of specific embodiment of the embodiment of the present invention, referring to Fig. 4, annular element 21 is equipped with fixing groove 24, Guide rail 1 is relatively fixed by the fixed block 25 and annular element 21 being adapted to fixing groove 24, and fixed block 25 is fixedly connected with guide rail 1. The effect of fixing groove 24 and fixed block 25 is to be kept fixed guide rail 1 temporarily, allows carrier 12 to move along guide rail 1, is detected；Inspection Fixed block 25 is disassembled from fixing groove 24 after having surveyed a stator tooth, and sliding component 22 can move in annular groove 23 again； After sliding component 22 is moved to next check bit, fixed block 25 is put into fixing groove 24, keeps sliding component 22 and annular element 21 It is relatively fixed, and guide rail 1 is fixedly connected with sliding component 22, therefore guide rail 1 is also kept fixed.Specifically, fixing groove 24 is screw thread Hole, fixed block 25 are bolt.Fixed block 25 is connect by the fixed arm 224 being installed on sliding component 22 with guide rail 1, and when fixation When block 25 is screwed into fixing groove 24, fixed block 25 and guide rail 1 are relatively fixed, and the two is fixedly connected.

As a kind of specific embodiment of the embodiment of the present invention, referring to Fig. 4, fixing groove 24 be equipped with it is multiple and circumferentially Be evenly arranged on the end face of annular element 21, the central angle between fixing groove 24 is matched with the central angle of stator between cog, fixing groove 24 with The stator tooth quantity being distributed on 3 inner wall of stator is equal, the central angle turned between adjacent fixing groove 24 and adjacent two stator The central angle turned over is equal between tooth, so as to the angle of convenient and efficient turned over by the determining sliding component 22 of fixing groove 24 Degree, enables guide rail 1 easily with next stator tooth to be detected to just.When one stator tooth of detection coil one-time detection When, fixed arm 224 is connected to adjacent next fixing groove 24 when moving sliding component 22；If detection coil one-time detection two Fixed arm 224 need to be connected to second, rear fixing groove 24 by a stator tooth when then moving sliding component 22.

As a kind of specific embodiment of the embodiment of the present invention, Fig. 4 and Fig. 6 are please referred to, annular element 21 is by inverted U Type seat 26 is fixed on rotor main shaft 41.U-shaped seat 26 is equipped with the interior cylinder being adapted to the external cylindrical surface of rotor main shaft 41 Face, therefore can make that annular element 21 is convenient, accurately protects with rotor main shaft 41 by being inverted U-shaped seat 26 to be set on rotor main shaft 41 It holds coaxially, to enable the gap between annular element 21 and stator 3 and rotor 4 to just.U-shaped seat 26 has downward opening, Therefore the lower cover for not needing to remove generator both ends can prevent on rotor main shaft 41；But it before placing, needs rotor Related accessories on main shaft 41 are removed, and vacate installation site for U-shaped seat 26；After installation, the components such as settable retaining ring are to U-shaped seat 26 carry out axial restraint.U-shaped seat 26 can be fixed on rotor main shaft 41 by self weight, but in order to keep U-shaped seat 26 more stable, Horizontal telescopic rod can be set in U-shaped 26 lower end of seat, U-shaped 26 stretching of seat is extruded on generator casing.It should be noted that It is that the telescopic rod need to be the direction under horizontally or obliquely to the extruding force of U-shaped seat 26, prevents extruding force from jacking up U-shaped seat 26, Make to generate gap between the inner cylinder face of U-shaped seat 26 and the external cylindrical surface of rotor main shaft 41, causes annular element 21 can not be with rotor Main shaft 41 keeps coaxial.

As a kind of specific embodiment of the embodiment of the present invention, referring to Fig. 7, subring of the annular element 21 by two arcs Shape part composition, the sub- annular element are removably connected, and the both ends of the sub- annular element are equipped with mounting plate 27, set on mounting plate 27 Having to positive through-hole, being installed together with will pass through bolt for two sub- annular elements；One on two mounting plates 27 being used cooperatively A equipped with card hole, another is equipped with fixture block, to make two sub- annular elements align installation, forms circular annular element 21. Split type structure is set by annular element 21, U can be attached it in the case where not removing the lower cover at generator both ends On type seat 26.Specifically, the sub- annular element is in semicircle shape.

As a kind of specific embodiment of the embodiment of the present invention, referring to Fig. 8, one in the sub- annular element and U Type seat 26 is detachable to be fixedly connected.When rotating mechanism 2 is installed, after U-shaped seat 26 is fixed on rotor main shaft 41, will first it be located at The sub- annular element of top is fixed on U-shaped seat 26, is then fixed to the sub- annular element of lower section on the sub- annular element of top, installation Process does not need extraction rotor 4, does not need the lower cover for removing generator yet.Specifically, U-shaped seat 26 is equipped with the first centering block 28, U-shaped seat 26 is equipped with the second centering block 29, and by the first centering block 28 and the second centering block 29, sub- annular element can be convenient Be installed on U-shaped seat 26, and can guarantee that the inner cylinder face of sub- annular element and U-shaped seat 26 is coaxial, to guarantee mounted Annular element 21 can be coaxial with rotor main shaft 41；First centering block 28 and the second centering block 29 are equipped with multiple, are further ensured that son Annular element and U-shaped seat 26 except coaxial can also the shape of syndrome annular element 21 to a certain extent whether meet the requirements.First Centering block 28 is equipped with threaded hole, through-hole is arranged on the second centering block 29, sub- annular element is bolted to connection U-shaped seat 26 On.

The present invention also provides the detection methods for carrying out Insulation monitoring to electricity generator stator core using above-mentioned apparatus, such as scheme Shown in 11, include the following steps:

The guide rail 1 is penetrated the gap by S1；

The rotating mechanism 2 is arranged and is connected to the ring at the gap both ends, and by the both ends of the guide rail 1 by S2 On shape part 21；

S3 drives the carrier 12 to move along the guide rail 1, in moving process, is mounted on institute using the traction component The detecting instrument 11 stated on carrier 12 detects stator core, and detection range can be a stator tooth or multiple stators Tooth；

S4, if being circumferentially rotated by rotating mechanism 2 to the guide rail 1 there are also the stator tooth not detected, making institute Guide rail 1 is stated with the stator tooth that did not detected to just；

S5 repeats S3 and S4 until the detection of all stator tooths is completed.

Insulation monitoring is carried out to electricity generator stator core by the above method, by 1 side of circumferential moving guide rail of rotating mechanism 2 Just quick；The power part of traction component is located at outside the gap, the operation of carrier 12 stability with higher；Above-mentioned apparatus It is at low cost, be easily installed, in the case where not taking out rotor 4 and not dismantling lower cover to stator core carry out Insulation monitoring, have Good application prospect.

Specifically, in step sl, during perforating rail 1, guide rail 1 can rub with rotor 4 or stator 3, to prevent The iron core of rotor 4 or stator 3 is damaged, as shown in figure 9, rolling frame 16 can be arranged in the penetrating end of guide rail 1, makes guide rail 1 It is in rolling contact with rotor 4 or stator 3；Specifically, as shown in Figure 10, rolling frame 16 is made of frame body and frame wheel, and frame body passes through butterfly Bolt with guide rail 1 is removable is fixedly connected, frame wheel with rotor 4 or stator 3 for being in rolling contact.Guide rail 1 wear after the completion of from The gap other end unscrews wing bolt and removes rolling frame 16.

In step s 2, be arranged rotating mechanism 2 the specific steps are unloading attachment on rotor main shaft 41 is U-shaped seat 26 Vacating space；U-shaped seat 26 is placed on rotor main shaft 41, the inner cylinder face of U-shaped seat 26 and the outside cylinder of rotor main shaft 41 are made Face is in close contact；Retaining ring type component is set, axial limiting is carried out to U-shaped seat 26, and by being installed in stretching for U-shaped 26 lower end of seat U-shaped seat 26 is pressed on the shell of generator by contracting bar；It fixes and the sub- annular element being located above is installed to U after U-shaped seat 26 On type seat 26, sliding component 22 is placed in annular groove 23, is then installed to the sub- annular element of lower section on the sub- annular element of top, Annular groove 23 is closed, idler wheel 223 is stuck in annular groove 23；The rotating mechanism 2 of the other end is also installed above-mentioned steps and is set； The both ends of guide rail 1 are connect with sliding component 22 respectively.

In the S3 step, sliding component 22 is kept fixed by fixed block 25 with annular element 21, therefore guide rail 1 is in the gap In be kept fixed, carrier 12 can be moved along guide rail 1 is stable.

In S4 step, by rotating mechanism 2 to guide rail 1 circumferentially rotated the specific steps are, by fixed block 25 from It is removed in fixing groove 24, the recovery of sliding component 22 is flexibly connected with annular element 21, and sliding component 22 is mobile by the number of fixing groove 24 Then fixed block 25 is reentered into fixing groove 24 by the angle, be kept fixed guide rail 1.

In S5, next stator tooth detection is compared with the detection of a upper stator tooth, and the moving direction of carrier 12 is on the contrary, i.e. In entire detection process, carrier 12 moves back and forth in gap of the stator 3 with rotor 4.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.