CN110794275A - Telescopic device for detecting partial discharge of track type inspection robot and working method thereof - Google Patents

Abstract

The invention relates to a telescopic device for detecting partial discharge of a rail-mounted inspection robot and a working method thereof, wherein the device comprises a base, a power assembly, a primary telescopic assembly, a secondary telescopic assembly and a probe assembly; the flexible subassembly of one-level is connected with the flexible subassembly of second grade, the flexible subassembly of one-level is arranged in the flexible subassembly of second grade, the outer end of the flexible subassembly of one-level is connected with the probing head subassembly, the flexible subassembly of second grade is connected with power component, power component connects on the base, when discharging and detecting, the flexible subassembly work of one-level drives the probing head subassembly and stretches out, if the flexible subassembly of one-level stretches out the back that targets in place, the probing head subassembly does not contact with the detection face, the flexible subassembly of second grade stretches out to drive the flexible subassembly of one-level and probing head subassembly and remove to probing head. The invention realizes that the detection range of partial discharge is enlarged under the specific structural volume limit, and the invention can adapt to complex detection scenes, has stable operation and improves the detection precision.

Description

Telescopic device for detecting partial discharge of track type inspection robot and working method thereof

Technical Field

The invention relates to a track type robot, in particular to a telescopic device for detecting partial discharge of a track type inspection robot and a working method thereof.

Background

The switch board in the power distribution room needs to be regularly patrolled and examined and detected so that abnormity can be timely found and other occurrence can be prevented. At present, most of power distribution rooms adopt manual inspection, the cost is high, the time is long, and the safety of detection instability and personnel can generate corresponding risks. The track type inspection robot is used, so that the defect of manual inspection can be well overcome, and the detection can be more intelligentized.

Present track type patrols and examines robot partial discharge detection device and is mostly single-stage flexible, or use electric putter, or use rack and pinion isotructure, this kind of structure is in specific volume, flexible scope is too little, be unfavorable for the detection under the specific scene, detection range is limited, the distribution room of a bit complicated a bit, it is limited based on its mounting means, many positions detect, in addition, many track types are patrolled and examined robot partial discharge detection device and can't be laminated well on the distribution cabinet, perhaps paste and still can make equipment receive the yawing force on the distribution cabinet, make the sensor damage, the operation is very unstable with the detection.

Therefore, it is necessary to design a new detection device, which can increase the detection range of the partial discharge, adapt to a complicated detection scenario, operate stably, and improve the detection accuracy.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a telescopic device for detecting partial discharge of a rail type inspection robot and a working method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme: the telescopic device for detecting the partial discharge of the rail type inspection robot comprises a base, a power assembly, a primary telescopic assembly, a secondary telescopic assembly and a probe assembly; the primary telescopic assembly is connected with the secondary telescopic assembly, the primary telescopic assembly is arranged in the secondary telescopic assembly, the outer end of the primary telescopic assembly is connected with the probe head assembly, the secondary telescopic assembly is connected with the power assembly, the power assembly is connected to the base, when discharge detection is carried out, the primary telescopic assembly works to drive the probe head assembly to extend out, and if the probe head assembly is contacted with a detection surface, the power assembly stops working; if the first-stage telescopic assembly stretches out and puts in place, the probe head assembly is not in contact with the detection surface, the second-stage telescopic assembly stretches out to drive the first-stage telescopic assembly and the probe head assembly to move to the probe head assembly to be in contact with the detection surface, and the power assembly stops working.

The further technical scheme is as follows: the flexible subassembly of one-level includes one-level lead screw and one-level sleeve, the flexible subassembly of second grade includes second grade lead screw and second grade sleeve, the second grade lead screw with power component connects, the one-level lead screw cover is in the periphery of second grade lead screw, the periphery of second grade lead screw is connected with swivel nut, the one-level lead screw with swivel nut fixed connection, the one-level sleeve with the one-level lead screw is connected, the one-level sleeve is arranged in the second grade sleeve, the second grade sleeve pass through first bearing with swivel nut connects.

The further technical scheme is as follows: the primary sleeve is connected to the periphery of the primary screw rod in a sliding mode through a fixing nut.

The further technical scheme is as follows: one end of the primary screw rod, which is far away from the rotating nut, is connected with a limiting block.

The further technical scheme is as follows: and the base is connected with a secondary support frame for supporting the secondary sleeve.

The further technical scheme is as follows: the first-stage sleeve is internally provided with a first-stage support frame used for supporting the first-stage sleeve.

The further technical scheme is as follows: the power assembly comprises a power source, a bearing seat, a connecting shaft and a motor supporting frame, wherein the power source is connected to the base through the motor supporting frame, a second bearing is arranged in the bearing seat, one end of the connecting shaft is connected with the power source, and the other end of the connecting shaft is connected with the first-level lead screw.

The further technical scheme is as follows: and the upper end of the bearing seat is provided with a proximity switch assembly for detecting the retraction position of the primary sleeve.

The further technical scheme is as follows: the detecting head subassembly includes ultrasonic sensor, proximity switch and adjustment structure, the adjustment structure include adjustment seat, spring fixing base, spring holder and connect in spring on the spring holder, ultrasonic sensor through fixed cover connect in the outer end of adjustment seat, the one end of spring holder is inserted and is established in the adjustment seat, the other end of spring holder is inserted and is established in the spring fixing base, the spring fixing base with one-level muffjoint, proximity switch connect in on the spring fixing base.

The invention also provides a working method of the telescopic device for the track type inspection robot to detect the partial discharge, which comprises the following steps:

when the detection of discharging needs, power component work drives the second grade lead screw and rotates, and swivel nut and one-level lead screw follow the second grade lead screw and rotate together, and the one-level sleeve stretches out outwards under the rotation of one-level lead screw, and the rotation of one-level lead screw acts on first bearing, and the second grade sleeve keeps quiescent condition, stretch out extremely as the one-level sleeve during the stopper is touched, and swivel nut, one-level lead screw and first bearing are driven in the rotation of second grade lead screw and are rotated, and then drive the second grade sleeve and stretch out, at the telescopic in-process that stretches out of one-level sleeve and second grade, whether laminating detection face is detected to the probe subassembly real-time detection, when detecting the detection face that has laminated, then stops.

Compared with the prior art, the invention has the beneficial effects that: the power assembly is arranged to drive the primary telescopic assembly and the secondary telescopic assembly to extend out according to actual scene requirements, so that the probe assembly can be attached to a detection surface, the telescopic stroke of the whole device is increased, the test range of partial discharge detection is greatly improved, the attachment degree of the probe assembly and the detection surface can be adjusted by an adjusting structure in the probe assembly, the detection surface with a complex structure or with an uneven surface can be reasonably attached to the detection surface, the probe assembly is not easy to damage, the detection range of partial discharge is increased under the specific structural volume limit, the detection device can adapt to the complex detection scene, the operation is stable, and the detection precision is improved.

The invention is further described below with reference to the accompanying drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic perspective view (in an initial state) of a first telescopic device for detecting partial discharge of a rail-type inspection robot according to a specific embodiment of the present invention;

fig. 2 is a schematic perspective view (in an initial state) of a telescopic device for detecting partial discharge of a rail-type inspection robot according to a specific embodiment of the present invention;

fig. 3 is a schematic view (in an initial state) of a cross-sectional structure of a telescopic device for detecting partial discharge of a rail-type inspection robot according to an embodiment of the present invention;

fig. 4 is a schematic perspective view (in an extended state) of a first telescopic device for detecting partial discharge of a rail-type inspection robot according to an embodiment of the present invention;

fig. 5 is a schematic perspective view (in an extended state) of a telescopic device for detecting partial discharge of a rail-type inspection robot according to a specific embodiment of the present invention;

fig. 6 is a schematic view of a cross-sectional structure (in an extended state) of the telescopic device for detecting partial discharge of the rail type inspection robot according to the embodiment of the present invention;

fig. 7 is an exploded schematic view of a telescopic device for detecting partial discharge of a track type inspection robot according to an embodiment of the present invention;

fig. 8 is a schematic diagram of an exploded view of a probe head assembly according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

According to the specific embodiment shown in fig. 1 to 8, the telescopic device for detecting the partial discharge of the track type inspection robot provided by the embodiment can be applied to the partial discharge detection process of the track type inspection robot, has a long telescopic stroke, increases the detection range of the partial discharge under the limitation of a specific structural volume, can adapt to a complex detection scene, and is stable in operation and improved in detection precision.

Referring to fig. 1 to 3, the telescopic device for detecting partial discharge of the track type inspection robot includes a base 10, a power assembly, a primary telescopic assembly, a secondary telescopic assembly, and a probe assembly 50. Base 10 is used for supporting whole telescoping device, the flexible subassembly of one-level can be used in the short detection scene of detection stroke, the flexible subassembly of second grade can be so that original flexible stroke is one section extension length of stack on the basis of the extension length of the flexible subassembly of one-level, be applicable to in the long detection scene of detection stroke, whole telescoping device adopts the flexible subassembly of two-stage, increase whole partial discharge's detection range, do benefit to the detection under the specific scene, detection range is wide, some complicated little the joining in marriage electrical room and also can detect its position that corresponds.

Specifically, the primary telescopic assembly is connected with the secondary telescopic assembly, the primary telescopic assembly is arranged in the secondary telescopic assembly, the outer end of the primary telescopic assembly is connected with the probe assembly 50, the secondary telescopic assembly is connected with the power assembly, the power assembly is connected to the base 10, when discharge detection is carried out, the primary telescopic assembly works to drive the probe assembly 50 to extend out, and if the probe assembly 50 is contacted with a detection surface, the power assembly stops working; if the first-stage telescopic assembly extends in place, the probe head assembly 50 is not in contact with the detection surface, the second-stage telescopic assembly extends out to drive the first-stage telescopic assembly and the probe head assembly 50 to move until the probe head assembly 50 is in contact with the detection surface, and the power assembly stops working.

The flexible subassembly of one-level slides and arranges the flexible subassembly of second grade in, when the flexible subassembly of second grade under power component's work drive, the flexible subassembly of second grade does not stretch out, drive the flexible subassembly of one-level earlier and stretch out the back, stretch out at the flexible subassembly of one-level when back detecting head subassembly 50 still can not contact the testing surface, the flexible subassembly of one-level stops to stretch out this moment, change and stretch out by the flexible subassembly of second grade to be convenient for detecting head subassembly 50 can contact the testing surface, when detecting head subassembly 50 can contact the testing surface, power component stop work.

In an embodiment, please refer to fig. 7, the primary telescopic assembly includes a primary screw 31 and a primary sleeve 30, the secondary telescopic assembly includes a secondary screw 42 and a secondary sleeve 40, the secondary screw 42 is connected to the power assembly, the primary screw 31 is sleeved on the periphery of the secondary screw 42, the periphery of the secondary screw 42 is connected to a rotating nut 44, the primary screw 31 is fixedly connected to the rotating nut 44, the primary sleeve 30 is connected to the primary screw 31, the primary sleeve 30 is disposed in the secondary sleeve 40, the secondary sleeve 40 is connected to the rotating nut 44 through a first bearing 43, the primary screw 31 is disposed in the primary sleeve 30, when the primary sleeve 30 does not extend in place, the first bearing 43 supports the rotation of the secondary screw 42, and the secondary sleeve 40 is prevented from extending along with the extension of the primary sleeve 30.

In an embodiment, the first-stage sleeve 30 is slidably connected to the periphery of the first-stage screw rod 31 through the fixing nut 32 to realize the sliding relationship between the first-stage sleeve 30 and the first-stage screw rod 31, when the second-stage screw rod 42 rotates under the action of the power assembly, the first-stage screw rod 31 rotates, the first-stage screw rod 31 drives the fixing nut 32 to rotate, so that the fixing nut 32 moves outwards under the action of the first-stage screw rod 31, the fixing nut 32 is fixedly connected with the first-stage sleeve 30, and then the first-stage screw rod 31 rotates to drive the first-stage sleeve 30 to move outwards.

In one embodiment, a stop block 311 is connected to an end of the primary screw rod 31 away from the rotating nut 44. When the first-stage sleeve 30 extends in place, that is, the limiting block 311 is inserted into the fixing nut 32, at this time, the first-stage sleeve 30 and the first-stage screw rod 31 form a whole through the fixing nut 32 and the limiting block 311, the first-stage screw rod 31 and the fixing nut 32 are relatively fixedly connected, and at this time, the first-stage screw rod 31 and the rotating nut 44 do not drive the first-stage sleeve 30 to extend.

Further, referring to fig. 7, the fixing nut 32 is provided with a connecting groove, when the primary sleeve 30 extends to a proper position, the limiting block 311 is embedded in the connecting groove, so as to form a relatively fixed connection between the primary screw rod 31 and the fixing nut 32.

Referring to fig. 1 to 3, in an initial state, the primary sleeve 30 and the secondary sleeve 40 are sleeved together, and the primary screw rod 31 and the secondary screw rod 42 are also sleeved together and do not extend out; referring to fig. 4 to 6, when the power assembly works, the second-stage lead screw 42 is driven to rotate, the second-stage lead screw 42 drives the rotary nut 44 to rotate, the rotary nut 44 is fixedly connected with the first-stage lead screw 31, the rotary nut 44 drives the first-stage lead screw 31 to rotate, the first-stage sleeve 30 is fixedly connected with the fixing nut 32, the first-stage lead screw 31 rotates to drive the first-stage sleeve 30 to move outwards through the fixing nut 32, so that the first-stage sleeve 30 extends outwards, the first bearing 43 works at the moment, the rotation of the rotary nut 44 does not affect the second-stage sleeve 40 after passing through the first bearing 43, so as to prevent the second-stage sleeve 40 from extending out, at the moment, if the detection head assembly 50 does not contact the detection surface, the first-stage lead screw 31 is inserted in the fixing nut 32 under the action of the limiting block 311 to form a relatively fixed connection with the fixing nut 32, and at the moment, The fixing nut 32 and the rotating nut 44 are formed as one body; at this time, the power assembly still works, the second-stage lead screw 42 acts on the rotary nut 44 under the action of the power assembly, the rotary nut 44 rotates under the action of the second-stage lead screw 42, at this time, the supporting stroke of the first bearing 43 is in place, namely, the first bearing 43, the rotary nut 44 and the first-stage lead screw 31 form a whole, the rotary nut 44 is rotatably connected with the second-stage lead screw 42, the first bearing 43 is sleeved outside the rotary nut 44, the extension of the second-stage sleeve 40 can drive the first bearing 43 and the rotary nut 44 to extend together, so that the first-stage telescopic assembly is extended together by virtue of the fixed connection of the rotary nut 44 and the first-stage lead screw 31, and in the extension process of the first-stage telescopic assembly or the second-stage telescopic assembly, if the probe head assembly 50 contacts a detection surface, the power assembly stops working, and the probe head assembly 50.

In an embodiment, referring to fig. 7, one end of the secondary sleeve 40 close to the power assembly is connected to a connecting plate 41, a through hole is formed in the connecting plate 41, the first bearing 43 is disposed in the through hole, and a diameter of the first bearing 43 is slightly larger than a diameter of the through hole, so as to fixedly connect the first bearing 43 and the secondary sleeve 40 together, the rotating nut 44 is inserted into the first bearing 43, a boss 441 extends outwards from one end of the rotating nut 44 away from the power assembly, the boss 441 has a diameter larger than the diameter of the through hole, the boss 441 abuts against one end of the connecting plate 41, and in addition, the other end of the rotating nut 44 is connected to a sealing piece 45.

The primary screw rod 31 and the secondary screw rod 42 are driven to be overlapped and rotationally extend through the rotation of the power assembly, the primary sleeve 30 and the secondary sleeve 40 are overlapped and extend along with the rotation of the primary screw rod 31 and the rotation of the secondary screw rod 42, the testing range of partial discharge detection is greatly improved, and the device is compact.

In an embodiment, referring to fig. 1, 3, 4, 6 and 7, the base 10 is connected to a secondary support frame 11 for supporting the secondary sleeve 40. So that the secondary sleeve 40 can be extended in the horizontal direction of the secondary support bracket 11.

In an embodiment, referring to fig. 3, 6 and 7, a primary supporting frame 33 for supporting the primary sleeve 30 is disposed in the primary sleeve 30.

In an embodiment, referring to fig. 1, fig. 3, fig. 4, fig. 6 and fig. 7, the power assembly includes a power source 20, a bearing seat 24, a connecting shaft 25 and a motor support frame 21, the power source 20 is connected to the base 10 through the motor support frame 21, a second bearing is disposed in the bearing seat 24, one end of the connecting shaft 25 is connected to the power source 20, and the other end of the connecting shaft 25 is connected to the first-stage screw rod 31.

In this embodiment, the power source 20 includes, but is not limited to, a brushless motor, the power source 20 is provided with an output shaft, the output shaft is connected to the connecting shaft 25, the power source 20 operates to drive the connecting shaft 25 to rotate, the connecting shaft 25 is connected to the primary screw 31, and the bearing seat 24 is provided with a second bearing therein to support the connecting shaft 25.

In one embodiment, referring to fig. 1, 3, 4, 6 and 7, the upper end of the bearing seat 24 is provided with a proximity switch assembly for detecting the retracted position of the secondary sleeve 40. The proximity switch assembly comprises a sleeve proximity switch 23 and a connecting frame 22, wherein the connecting frame 22 is connected to the upper end surface of a bearing seat 24, and the sleeve proximity switch 23 is connected into the connecting frame 22. After the detection is finished, the power source 20 reversely rotates, the secondary sleeve 40 and the primary sleeve 30 retract and reset, the sleeve proximity switch 23 is limited after the secondary sleeve 40 reaches the initial position, and the power source 20 stops rotating. The connecting plate 41 is provided with a detection groove, and when the sleeve proximity switch 23 is inserted into the detection groove and abuts against the bottom of the detection groove, the secondary sleeve 40 is indicated to return to the initial position.

In an embodiment, referring to fig. 3, 6, 7 and 8, the probe head assembly 50 includes an ultrasonic sensor 51, a proximity switch 57 and an adjustment structure, the adjustment structure includes an adjustment seat 53, a spring fixing seat 56, a spring seat 54 and a spring 55 connected to the spring seat 54, the ultrasonic sensor 51 is connected to an outer end of the adjustment seat 53 through a fixing sleeve 52, one end of the spring seat 54 is inserted into the adjustment seat 53, the other end of the spring seat 54 is inserted into the spring fixing seat 56, the spring fixing seat 56 is connected to the primary sleeve 30, and the proximity switch 57 is connected to the spring fixing seat 56. One end of the spring seat 54, which is far away from the spring fixing seat 56, is provided with a convex ring in an outward protruding manner, the diameter of the convex ring is larger than the diameter of a hole in the adjusting seat 53, which is used for installing the spring seat 54, so that when the attaching degree of the probe head assembly 50 and the detection surface needs to be adjusted, the force acting on the fixing sleeve is transmitted to the adjusting seat 53, the spring 55 is compressed by the convex ring, the adjusting seat 53 moves towards the direction close to the spring fixing seat 56, the length of the spring seat 54 inserted in the spring fixing seat 56 can be increased at the moment, when the detection surface is not attached to the probe head assembly 50, the spring 55 resets, so that the spring seat 54 and the adjusting seat 53 are restored to the initial position.

The periphery of the fixed sleeve 52 is connected with a discharge detection mechanism to realize partial discharge detection on a detection surface.

The probe head assembly 50 is mounted on the primary sleeve 30. The ultrasonic sensor 51 is fixed on the adjusting seat 53 by a fixing sleeve 52, four spring seats 54 are fixed on the adjusting seat 53, the adjusting seat 53 is separated from a spring fixing seat 56 by a spring 55, and a proximity switch 57 is installed on the spring fixing seat 56 and is adjusted to have a certain distance with the adjusting seat 53. Along with the extension of the primary sleeve 30, the ultrasonic sensor 51 reaches the detection surface, the ultrasonic sensor 51 is automatically adjusted by 360 degrees under the action of the adjusting structure to be attached to the detection surface, the ultrasonic sensor is compressed to a set displacement, the proximity switch 57 is limited, and the brushless motor stops rotating.

The limit operation of the proximity switch 57 and the design of the ultrasonic sensor 51 greatly improve the detection precision, so that the device runs more stably and reliably.

In this embodiment, the telescopic device further comprises a controller, and the controller is connected with the ultrasonic sensor 51, the proximity switch 57, the sleeve proximity switch 23 and the power source 20.

Foretell track type patrols and examines telescoping device that robot partial discharge detected, it is required to stretch out according to actual scene to drive one-level flexible subassembly and second grade flexible subassembly through setting up power component, so that probe subassembly 50 can laminate the detection face, make the flexible stroke increase of whole device, the test range that the partial discharge detected has greatly been improved, and the adjustable probe subassembly 50 of adjustment structure in the probe subassembly 50 and the laminating degree of detection face, to the detection face of structure complicacy or surface unevenness, also can rationally be laminated on the detection face, and not fragile probe subassembly 50, realize under specific structure volume limit, increase partial discharge's detection range, and can adapt to complicated detection scene, the operation is stable, improve and detect the precision.

In an embodiment, an operating method of a telescopic device for detecting partial discharge of a track type inspection robot is further provided, and the operating method includes:

when the discharge detection is needed, the power assembly works, the second-stage lead screw 42 is driven to rotate, the rotary nut 44 and the first-stage lead screw 31 rotate along with the second-stage lead screw 42, the first-stage sleeve 30 extends outwards under the rotation of the first-stage lead screw 31, the rotation of the first-stage lead screw 31 acts on the first bearing 43, the second-stage sleeve 40 keeps in a static state, when the first-stage sleeve 30 extends to the limiting block 311 to be touched, the rotary nut 44 is driven by the rotation of the second-stage lead screw 42, the first-stage lead screw 31 and the first bearing 43 rotate, the second-stage sleeve 40 is driven to extend, in the extending process of the first-stage sleeve 30 and the second-stage sleeve 40, whether the detection surface is attached or not is detected by the detection head assembly 50 in real time.

It should be noted that, as can be clearly understood by those skilled in the art, the specific implementation process of the working method of the telescopic device for detecting the partial discharge of the rail type inspection robot may refer to the corresponding description in the embodiment of the telescopic device for detecting the partial discharge of the rail type inspection robot, and is not repeated herein for the convenience and brevity of the description.

The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.

Claims (10)

1. The telescoping device for the track type inspection robot partial discharge detection is characterized by comprising a base, a power assembly, a primary telescoping assembly, a secondary telescoping assembly and a probe assembly; the primary telescopic assembly is connected with the secondary telescopic assembly, the primary telescopic assembly is arranged in the secondary telescopic assembly, the outer end of the primary telescopic assembly is connected with the probe head assembly, the secondary telescopic assembly is connected with the power assembly, the power assembly is connected to the base, when discharge detection is carried out, the primary telescopic assembly works to drive the probe head assembly to extend out, and if the probe head assembly is contacted with a detection surface, the power assembly stops working; if the first-stage telescopic assembly stretches out and puts in place, the probe head assembly is not in contact with the detection surface, the second-stage telescopic assembly stretches out to drive the first-stage telescopic assembly and the probe head assembly to move to the probe head assembly to be in contact with the detection surface, and the power assembly stops working.

2. The telescopic device that robot partial discharge detected is patrolled and examined to rail-mounted of claim 1, characterized in that, the flexible subassembly of one-level includes one-level lead screw and one-level sleeve, the flexible subassembly of second grade includes second grade lead screw and second grade sleeve, the second grade lead screw with power component connects, the one-level lead screw cover is in the periphery of second grade lead screw, rotary nut is connected to the periphery of second grade lead screw, the one-level lead screw with rotary nut fixed connection, the one-level sleeve with one-level screwed connection, the one-level sleeve is arranged in the second grade sleeve, the second grade sleeve pass through first bearing with rotary nut connects.

3. The telescoping device that partial discharge of track type inspection robot detected according to claim 2, characterized in that, the one-level sleeve passes through fixation nut sliding connection in the periphery of one-level lead screw.

4. The telescopic device for the track type inspection robot partial discharge detection according to claim 2, wherein one end of the primary screw rod, which is far away from the rotating nut, is connected with a limiting block.

5. The telescopic device for the partial discharge detection of the rail-mounted inspection robot according to claim 2, wherein a secondary support frame for supporting the secondary sleeve is connected to the base.

6. The telescopic device for the partial discharge detection of the rail-mounted inspection robot according to claim 2, wherein a primary support frame for supporting the primary sleeve is arranged in the primary sleeve.

7. The telescopic device for the track type inspection robot partial discharge detection according to any one of claims 2 to 6, wherein the power assembly comprises a power source, a bearing seat, a connecting shaft and a motor supporting frame, the power source is connected to the base through the motor supporting frame, a second bearing is arranged in the bearing seat, one end of the connecting shaft is connected with the power source, and the other end of the connecting shaft is connected with the first-level screw rod.

8. The telescoping device of partial discharge detection of track type inspection robot of claim 7, wherein the upper end of the bearing housing is provided with a proximity switch assembly for detecting the position of the retraction of the primary sleeve.

9. The telescopic device for the track type inspection robot partial discharge detection according to claim 7, wherein the probe head assembly comprises an ultrasonic sensor, a proximity switch and an adjusting structure, the adjusting structure comprises an adjusting seat, a spring fixing seat, a spring seat and a spring connected to the spring seat, the ultrasonic sensor is connected to the outer end of the adjusting seat through a fixing sleeve, one end of the spring seat is inserted into the adjusting seat, the other end of the spring seat is inserted into the spring fixing seat, the spring fixing seat is connected with the primary sleeve, and the proximity switch is connected to the spring fixing seat.

10. The working method of the telescopic device for detecting the partial discharge of the rail-type inspection robot is characterized by comprising the following steps of:

when the detection of discharging needs, power component work drives the second grade lead screw and rotates, and swivel nut and one-level lead screw follow the second grade lead screw and rotate together, and the one-level sleeve stretches out outwards under the rotation of one-level lead screw, and the rotation of one-level lead screw acts on first bearing, and the second grade sleeve keeps quiescent condition, stretch out extremely as the one-level sleeve during the stopper is touched, and swivel nut, one-level lead screw and first bearing are driven in the rotation of second grade lead screw and are rotated, and then drive the second grade sleeve and stretch out, at the telescopic in-process that stretches out of one-level sleeve and second grade, whether laminating detection face is detected to the probe subassembly real-time detection, when detecting the detection face that has laminated, then stops.

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