CN115308238A - Movable high-energy ray device for detecting defects of GIS (gas insulated switchgear) of extra-high voltage station - Google Patents

Abstract

The application discloses portable high energy ray device for extra-high voltage station GIS equipment defect detection, including the base that is used for installing control mechanism, base bottom four corners position all installs the gyro wheel mechanism that is used for turning to and removes, still including rotating the cantilever mechanism that sets up on the base, the free end of cantilever mechanism rotates installs the detector that is used for receiving the X ray of X ray machine transmission, the X ray machine is installed cantilever mechanism is close to the position of base. According to the invention, the spatial ray collimation structure is formed by installing the detector through the cantilever mechanism and the X-ray machine which can be in pitching fit at the same angle, and the problem that the detector is difficult to collimate by the existing split type X-ray machine on the premise of being blocked by GIS equipment is solved. Meanwhile, compared with the existing portable X-ray equipment, the problem that the detected GIS equipment cannot be effectively penetrated due to insufficient energy can be effectively solved.

Description

Movable high-energy ray device for detecting defects of GIS (gas insulated switchgear) of extra-high voltage station

Technical Field

The invention relates to the technical field of defect detection of high-voltage transmission equipment, in particular to defect detection of extra-high voltage station GIS equipment, and specifically relates to a movable high-energy ray device for defect detection of extra-high voltage station GIS equipment.

Background

GIS devices have been widely operated around the world since the practical use in the 60's of the 20 th century. GIS is widely used not only in the high and ultra-high voltage fields, but also in the ultra-high voltage field. Compared with a conventional open-type transformer substation, the GIS has the advantages of compact structure, small occupied area, high reliability, flexible configuration, convenience in installation, high safety, high environmental adaptability, small maintenance workload and maintenance interval of main parts not less than 20 years.

There are three types of high voltage power distribution devices: the first is a conventional electrical distribution device for air, abbreviated as AIS. The bus bar is exposed to directly contact with air, and the breaker can be of a porcelain column type or a tank type. This is the type used in Ge Zhou dam power plants. The second type is a hybrid power distribution device, referred to as H-GIS for short. The bus adopts an open type, and other buses are sulfur hexafluoride gas switch devices. The third is sulfur hexafluoride gas full-closed distribution device. The English is called GAS-INSTULATED SWITCH, GIS for short.

GIS is high-voltage electrical equipment with high operation reliability, less maintenance workload and long overhaul period, the failure rate of the GIS is only 20% -40% of that of conventional equipment, but the GIS also has inherent defects, and due to the influences of factors such as SF6 gas leakage, external moisture permeation, conductive impurities, sub-aging and the like, the GIS can be subjected to internal flashover failure. The GIS is of a full-sealed structure, so that the fault is difficult to locate and maintain, the maintenance work is complicated, the average power failure maintenance time after the accident is longer than that of conventional equipment, the power failure range is large, and a plurality of non-fault elements are involved.

The traditional GIS diagnosis method uses physical and chemical principles and means, and directly detects the fault through various physical and chemical phenomena accompanying the fault, for example, various means such as vibration, sound, light, heat, electricity, magnetism, ray, chemistry and the like are utilized to observe the change rule and the characteristic of the fault, so as to directly detect and diagnose the fault. The method is visual, quick and effective, but only can detect partial faults. The partial discharge is detected by using a mechanical vibration method, and the method is a monitoring technology without power failure. The basic principle is that once partial discharge occurs, vibration is generated, and a sound vibration collecting device is arranged on the outer wall of equipment to detect sound and vibration. However, the method needs to collect different positions and needs to continuously disassemble the fixed collecting device, and the number obtained by the detection method sometimes needs to be assisted by X-rays to further judge the fault type. GIS pipe network is complicated, and is higher apart from the ground, and is strong to personnel's dependence, and is inefficient, and the operation is complicated, has certain limitation.

In recent years, a new technology for detecting faults such as partial discharge and mechanical vibration through ultrasonic visualization is developed, and a detection device can observe abnormal noise points on a display screen to quickly determine fault positions only by aligning to a detected object and without direct contact. Is a convenient and efficient detection means. However, the technology can only display the fault position at present, and cannot judge the fault type.

X ray detection is as a high-efficient, harmless, visual detection means in power grid operation and maintenance operation in recent years by wide application, but GIS is because the pipeline diameter is great, and inside electrical components constitute and structure is complicated, and conventional ray detection device operation is put and is wasted time and energy, and once the adjustment is fixed only satisfies single angle and shoots, has certain limitation to judging whether inside has the defect to the accuracy, and detection efficiency is low.

In order to solve the detection of the GIS large-size equipment, a high-energy X-ray detection device which can be flexibly moved and quickly aligned is required to detect the GIS large-size equipment, so that the electric power accident caused by GIS faults is avoided.

Disclosure of Invention

In order to solve the inconvenient problem of extra-high voltage GIS equipment defect detection, the application provides a portable high energy ray device that is used for extra-high voltage station GIS equipment defect detection, a GIS equipment for to current extra-high voltage power station carries out electrified defect detection, the detector through cantilever mechanism end installation forms the position of mutual alignment with the X-ray machine that is located cantilever mechanism root position, the current X-ray testing in-process has been avoided, because GIS is bulky, shelter from the detector easily, make X-ray machine and detector alignment need cost more time, and the X-ray piece quality that obtains, the not high problem of going wrong appearance examination and reduplication.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

a portable high energy ray device for extra-high voltage station GIS equipment defect detection, including the base that is used for installing control mechanism, base bottom four corners position all installs the gyro wheel mechanism that is used for turning to and removes, still including rotating the cantilever mechanism that sets up on the base, the free end of cantilever mechanism rotates installs the detector that is used for receiving the X ray of X ray machine transmission, the X ray machine is installed cantilever mechanism is close to the position of base.

In order to meet GIS detection at different positions and enable the ray device to be adjusted according to the actual detection environment, preferably, the control mechanism comprises a first control unit for controlling the first telescopic rod, the second telescopic rod and the third telescopic rod to stretch, the cantilever mechanism comprises a first support arm and a second support arm which are hinged to each other and a support rotatably connected with the base, the support is hinged to the lower end of the first support arm, and the first telescopic rod is hinged to the support and the upper end of the first support arm respectively; the X-ray machine is characterized in that the upper end of the first support arm is hinged with the middle part of the second support arm close to the first support arm, the two ends of the second telescopic rod are hinged with the end of the second support arm close to the first support arm and the middle part of the first support arm respectively, one end of the bottom of the X-ray machine is hinged with the support, and the other end of the bottom of the X-ray machine is provided with a third telescopic rod used for controlling the vertical pitching of the X-ray machine along with the detector.

The working principle is as follows:

the first control unit of the control mechanism is used for controlling the extension and retraction of the first telescopic rod, the second telescopic rod and the third telescopic rod, so that the lifting state of the cantilever mechanism is changed, the horizontal position of the detector is adjusted, and the detector is suitable for being installed on GIS equipment at different heights to detect. After the horizontal position of the detector changes, the central ray of the X-ray machine is not perpendicular to the detector at the moment, even does not intersect with the effective detection area of the detector, so that an effective X-ray film cannot be obtained, and at the moment, the expansion and contraction of the third telescopic rod are required to be adjusted through the first control unit, so that the angle of the X-ray machine in the pitching direction is adjusted until the central ray is located at the central position of the detector. It is worth to be noted that the telescopic rod is only a stressed member which changes the structural state through stretching, and when the telescopic rod adopts a hydraulic rod, the first control unit is a corresponding hydraulic control unit; when the telescopic rod adopts the electric pushing cylinder, the first control unit is a corresponding electric control unit; when the telescopic rod adopts a pneumatic rod, the first control unit is a corresponding air pressure control unit; moreover, the telescopic rod structure can also be formed by combining the screw rod and the screw sleeve, in the prior art, as long as the existing telescopic mechanism in accordance with the application scenario of the present application can be obtained by a person skilled in the art without creative labor, the telescopic rod described in the present application, that is, the telescopic rod includes a first telescopic rod, a second telescopic rod and a third telescopic rod. Because the initial state and the final state of cantilever mechanism are controllable, and the every single move angle of X-ray machine is controlled by first the control unit, consequently, need not to consider the problem that whether the central ray of detector and X-ray machine can aim at, can confirm through the parameter of controlling first telescopic link, second telescopic link and third telescopic link in the control unit, consequently, then can save prior art among the high energy ray device that this application provided, the time that the installation and aim at X-ray equipment and detector required cost, thereby promote detection efficiency. As a preferred scheme of the application, an angle sensor and an angle sensor for detecting the pitching angle of the X-ray machine can be arranged at the hinged position of the first support arm and the second support arm, so that the pitching postures of the cantilever mechanism and the X-ray machine can be further corrected by acquiring the angle signals of the sensors in real time, and the spatial alignment error of the detector and the X-ray machine is further eliminated; furthermore, a laser head parallel to the central ray can be fixedly installed on the X-ray machine, when the GIS equipment needs to be subjected to X-ray detection, the cantilever mechanism is adjusted to a proper position, the preset position shot at the moment is used as an initial position, the first telescopic rod is extended, the whole cantilever mechanism is lifted upwards, and then the length of the third telescopic rod is adjusted, so that the laser of the laser head is accurately shot at the corresponding position of the detector, namely, the central ray of the X-ray machine is aligned with the detector in the current state. It should be noted that the corresponding position mentioned at this time refers to the intersection position of the laser and the detector surface when the central ray is aligned with the center point of the detector, and the intersection position is not the center of the detector, because the laser head has physical structure and size, the position where the ray of the X-ray machine is emitted cannot be coincident with the central ray, and the central ray always has a distance from the laser used for indication, and then the distance is the distance between the center point of the detector and the corresponding position. Certainly, because the detector has a larger physical size, in the practical detection application, the defect detection purpose cannot be realized even if the detector is slightly inclined in time, and only the completeness and the definition of the X-ray film are reduced.

In order to further optimize the structure of the present application, preferably, a horizontal shaft for hinging the detector is transversely arranged at the free end of the second support arm, two first bevel gears are oppositely arranged on the horizontal shaft, and any one of the first bevel gears is in driving connection with a first servo motor fixedly arranged on the side wall of the second support arm; and a second bevel gear which is simultaneously meshed with the two first bevel gears is also rotatably arranged on the horizontal shaft, and the bottom of the second bevel gear is fixedly connected with the detector.

In order to facilitate the free rotation of the cantilever mechanism, preferably, a turntable is fixedly arranged at the bottom of the support, the turntable is in driving connection with a steering mechanism arranged in the base, the steering mechanism is provided with a driving motor and a speed reducer, and a driving disc connected with an output shaft of the speed reducer is in driving connection with the turntable.

In order to promote this application at on-the-spot mobility, reach the defect detection's of single operation can accomplish regional GIS equipment purpose, further preferably again, roller mechanism include with fixed connection's hub support can be dismantled to the base, hub support bottom is rotated and is installed the U type yoke that is used for installing profile of tooth wheel hub to and install the unit that turns to that is used for driving profile of tooth wheel hub pivoted drive unit and drive profile of tooth wheel hub to turn to on the hub support.

Preferably, the driving unit comprises a second servo motor installed on the hub bracket, a first driving wheel is arranged on an output shaft of the second servo motor, the first driving wheel is in driving connection with a first driven wheel, a second gear is meshed with a first gear coaxially arranged with the first driven wheel, and a bevel ring arranged on the side wall of the toothed hub is meshed with a third bevel gear coaxially arranged with the second gear.

Still further preferably, the steering unit includes a third servo motor disposed on the wheel hub bracket, a second driven wheel drivingly connected to the third servo motor, and a third driven wheel disposed coaxially with the second driven wheel, the third driven wheel is drivingly connected to a fourth driven wheel, and the bottom of the fourth driven wheel is fixedly connected to the U-shaped yoke and rotatably connected to the wheel hub bracket.

Has the advantages that:

according to the invention, the spatial ray collimation structure is formed by installing the detector through the cantilever mechanism and the X-ray machine which can be in pitching fit at the same angle, and the problem that the detector is difficult to collimate on the premise that GIS equipment is blocked by the existing split type X-ray machine is solved. Meanwhile, compared with the existing portable X-ray equipment, the problem that the detected GIS equipment cannot be effectively penetrated due to insufficient energy can be effectively solved.

The invention adopts four roller mechanisms which can drive and steer simultaneously, the roller mechanism adopts a tooth-shaped hub to walk on hard and loose ground surface in a rolling way, so as to avoid skidding, and simultaneously, anti-skidding rollers can be selectively arranged outside the tooth-shaped hub, so that the invention is suitable for the area detection of paved road surfaces.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present application, and it is also possible for those skilled in the art to obtain other drawings based on the drawings without inventive labor.

Fig. 1 is an isometric view of the structure of the present invention.

Fig. 2 is an isometric view of the inverted visual structure of fig. 1.

Fig. 3 is a schematic diagram of detecting a GIS device at a lower position according to the present invention.

Fig. 4 is a schematic diagram of detecting a GIS device at a higher position according to the present invention.

Fig. 5 is an isometric view of the roller mechanism construction.

Fig. 6 is another visual isometric view of the structure of fig. 5.

Fig. 7 is an isometric view of another alternative visual structure of fig. 5.

In the figure: 1-a roller mechanism; 2-a base; 3, rotating a disc; 4-support; 5-an X-ray machine; 6-a first support arm; 7-a second support arm; 8-a first telescopic rod; 9-a second telescopic rod; 10-a first servo motor; 11-a first bevel gear; 12-a second bevel gear; 13-a detector; 14-a third telescopic rod; 101-a hub carrier; 102-a second servomotor; 103-a first drive wheel; 104 — a first driven wheel; 105-a first gear; 106-a second gear; 107-third bevel gear; 108-a bevel gear ring; 109-toothed wheel hub; 110-U-shaped yoke; 111-a third servo motor; 112-a second driven wheel; 113-a third driven wheel; 114-fourth driven wheel; 115-anti-skid roller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the movable high-energy ray device for detecting the defects of the extra-high voltage station GIS equipment, which is shown in the attached drawings 1-4 of the specification, comprises a base 2 for installing a control mechanism, roller mechanisms 1 for steering and moving are installed at four corners of the bottom of the base 2, the movable high-energy ray device also comprises a cantilever mechanism rotatably arranged on the base 2, a detector 13 for receiving X rays emitted by an X-ray machine 5 is rotatably installed at the free end of the cantilever mechanism, and the X-ray machine 5 is installed at a position, close to the base 2, of the cantilever mechanism.

In order to meet the requirements of GIS detection at different positions and enable the ray device to be adjusted according to the actual detected environment, preferably, the control mechanism comprises a first control unit for controlling the expansion and contraction of a first telescopic rod 8, a second telescopic rod 9 and a third telescopic rod 14, the cantilever mechanism comprises a first support arm 6 and a second support arm 7 which are hinged with each other and a support 4 which is rotatably connected with the base 2, the support 4 is hinged with the lower end of the first support arm 6, and the first telescopic rod 8 is hinged with the upper ends of the support 4 and the first support arm 6 respectively; the upper end of the first support arm 6 is hinged to the middle of the second support arm 7 close to the first support arm 6, two ends of the second telescopic rod 9 are hinged to the end of the second support arm 7 close to the first support arm 6 and the middle of the first support arm 6 respectively, one end of the bottom of the X-ray machine 5 is hinged to the support 4, and the other end of the bottom of the X-ray machine 5 is provided with a third telescopic rod 14 used for controlling the X-ray machine 5 to pitch up and down along with the detector 13.

The working principle is as follows:

the first control unit of the control mechanism is used for controlling the extension and retraction of the first telescopic rod 8, the second telescopic rod 9 and the third telescopic rod 14, so that the lifting state of the cantilever mechanism is changed, the horizontal position of the detector 13 is adjusted, and the detection of GIS equipment at different heights is adapted to. When the horizontal position of the detector 13 changes, the central ray of the X-ray machine 5 is not perpendicular to the detector 13 at this time, or even does not intersect with the effective detection area of the detector 13, so that an effective X-ray film cannot be obtained, and at this time, the expansion and contraction of the third telescopic rod 14 needs to be adjusted by the first control unit, so that the X-ray machine 5 is subjected to angle adjustment in the pitching direction until the central ray is located at the central position of the detector 13. It is worth to be noted that the telescopic rod is only a stressed member which changes the structural state through stretching, and when the telescopic rod adopts a hydraulic rod, the first control unit is a corresponding hydraulic control unit; when the telescopic rod adopts the electric pushing cylinder, the first control unit is a corresponding electric control unit; when the telescopic rod adopts a pneumatic rod, the first control unit is a corresponding air pressure control unit; moreover, a telescopic rod structure can also be formed by combining a screw rod and a screw sleeve, in the prior art, as long as the existing telescopic mechanism according to the application scenario of the present application can be obtained by a person skilled in the art without creative work, the telescopic rods described in the present application, that is, the telescopic rods include a first telescopic rod 8, a second telescopic rod 9 and a third telescopic rod 14, should be understood as the telescopic rods described in the present application. Because the initial state and the final state of the cantilever mechanism are controllable, and the pitching angle of the X-ray machine 5 is controlled by the first control unit, the problem that whether the central rays of the detector 13 and the X-ray machine 5 can be aligned is not required to be considered, and the parameters of the first telescopic rod 8, the second telescopic rod 9 and the third telescopic rod 14 can be determined by controlling the first control unit, so that the time spent on installing and aligning the X-ray equipment and the detector in the prior art can be saved in the high-energy ray device provided by the application, and the detection efficiency is improved. As a preferred scheme of the present application, an angle sensor and an angle sensor for detecting the pitch angle of the X-ray machine 5 may also be installed at the hinged position of the first support arm 6 and the second support arm 7, so that the pitch attitude of the cantilever mechanism and the X-ray machine 5 can be further corrected by acquiring the angle signal of the sensor in real time, and the spatial alignment error of the detector 13 and the X-ray machine 5 is further eliminated; further, a laser head parallel to the central ray can be fixedly installed on the X-ray machine 5, when X-ray detection needs to be performed on the GIS device, the cantilever mechanism is adjusted to a proper position, the preset position shot at the moment is used as an initial position, the first telescopic rod 8 is extended, the whole cantilever mechanism is lifted upwards, and then the length of the third telescopic rod 14 is adjusted, so that laser of the laser head is accurately shot at the corresponding position of the detector 13, namely, the central ray of the X-ray machine 5 is aligned with the detector 13 in the current state. It should be noted that the corresponding position mentioned at this time refers to the intersection position of the laser and the detector surface when the central ray is aligned with the center point of the detector 13, and the intersection position is not the center of the detector 13, because the laser head has a physical structure and size, it is impossible to reach the position where the ray of the X-ray machine 5 is emitted to coincide with the central ray, and the central ray always has a distance from the laser used for indication, which is the distance from the center point of the detector 13 to the corresponding position. Of course, since the detector 13 has a large physical size, in practical inspection applications, a slight deviation in time will not result in the failure of defect inspection, but only the completeness and definition of the X-ray film will be reduced. Fig. 3 and fig. 4 respectively show the state diagrams of the GIS device detection at different height positions of the present embodiment.

Example 2:

in order to further optimize the structure of the present application, on the basis of embodiment 1, and as further shown in fig. 1-4 of the specification, a horizontal shaft for hinging a detector 13 is transversely arranged at the free end of the second arm 7, two first bevel gears 11 are oppositely arranged on the horizontal shaft, and each first bevel gear 11 is in driving connection with a first servo motor 10 fixedly arranged on the side wall of the second arm 7; a second bevel gear 12 which is meshed with the two first bevel gears 11 at the same time is also rotatably arranged on the horizontal shaft, and the bottom of the second bevel gear 12 is fixedly connected with the detector 13.

When the detector 13 needs to be adjusted in a pitching manner, only the first bevel gears 11 arranged at the two ends need to be adjusted synchronously, and when the detector 13 needs to be deflected longitudinally, the adjustment can be realized by reversely driving the first bevel gears 11 arranged at the two ends, so that the double-shaft adjustment of the detector 13 is provided in the embodiment, and the detection of GIS equipment in more scenes can be adapted.

In order to facilitate the free rotation of the cantilever mechanism, a rotary table 3 is fixedly arranged at the bottom of the support 4, the rotary table 3 is in driving connection with a steering mechanism arranged in the base 2, the steering mechanism is provided with a driving motor and a speed reducer, and a driving disc connected with an output shaft of the speed reducer is in driving connection with the rotary table 3, which is not shown in the figure.

Example 3:

as shown in fig. 5-7 in conjunction with the description, in order to improve the field mobility of the present application and achieve the purpose of detecting the defects of the regional GIS equipment by a single operator, in this embodiment, the roller mechanism 1 includes a hub bracket 101 detachably and fixedly connected to the base 2, a U-shaped yoke 110 for mounting the tooth-shaped hub 109 is rotatably mounted at the bottom of the hub bracket 101, and a driving unit for driving the tooth-shaped hub 109 to rotate and a steering unit for driving the tooth-shaped hub 109 to turn are mounted on the hub bracket 101.

The driving unit comprises a second servo motor 102 installed on a hub support 101, a first driving wheel 103 is arranged on an output shaft of the second servo motor 102, the first driving wheel 103 is connected with a first driven wheel 104 in a driving mode, a first gear 105 coaxially arranged with the first driven wheel 104 is meshed with a second gear 106, and a third bevel gear 107 coaxially arranged with the second gear 106 is meshed with a bevel gear ring 108 arranged on the side wall of a toothed hub 109.

The structural arrangement is further refined, the steering unit comprises a third servo motor 111 arranged on the hub support 101, a second driven wheel 112 connected with the third servo motor 111 in a driving mode, a third driven wheel 113 coaxially arranged with the second driven wheel 112, a fourth driven wheel 114 connected with the third driven wheel 113 in a driving mode, and the bottom of the fourth driven wheel 114 is fixedly connected with the U-shaped fork arm 110 and is connected with the hub support 101 in a rotating mode. Alternatively, the anti-slip roller 115 is detachably and fixedly mounted on the outer peripheral side of the toothed hub 109.

With reference to fig. 5-7, the toothed wheel hub 109 and/or the anti-skid rollers 115 are driven by the second servo motor 102, and when steering is required, the third servo motor 111 is driven, since the present embodiment adopts synchronous rotation/steering of the four roller mechanisms 1, instead of the conventional front wheel steering, the rear wheel is driven, and in addition, since the overall weight of the device is 300-500kg and simultaneous and synchronous steering is adopted, the problem of differential speed between the toothed wheel hubs 109 and/or the anti-skid rollers 115 during steering can be ignored.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (8)

1. A portable high energy ray device for extra-high voltage station GIS equipment defect detection, its characterized in that: including base (2) that is used for installing control mechanism, base (2) bottom four corners position all installs and is used for turning to and gyro wheel mechanism (1) that remove, its characterized in that: the X-ray detector is characterized by further comprising a cantilever mechanism which is rotatably arranged on the base (2), a detector (13) which is used for receiving X-rays emitted by the X-ray machine (5) is rotatably arranged at the free end of the cantilever mechanism, and the X-ray machine (5) is arranged at a position, close to the base (2), of the cantilever mechanism.

2. The mobile high-energy ray device for detecting defects of extra-high voltage station GIS equipment according to claim 1, characterized in that: the control mechanism comprises a first control unit for controlling the extension and retraction of a first telescopic rod (8), a second telescopic rod (9) and a third telescopic rod (14), the cantilever mechanism comprises a first support arm (6) and a second support arm (7) which are hinged with each other, and a support (4) rotatably connected with the base (2), the support (4) is hinged with the lower end of the first support arm (6), and the first telescopic rod (8) is hinged with the support (4) and the upper end of the first support arm (6) respectively; the utility model discloses a X-ray production apparatus, including first support arm (6), second support arm (7), support seat (4), first support arm (6) upper end is articulated with the position that second support arm (7) middle part is close to first support arm (6), the both ends of second telescopic link (9) are articulated with the middle part that second support arm (7) are close to the end of first support arm (6) and first support arm (6) respectively, X-ray production apparatus (5) bottom one end with support seat (4) are articulated, and the other end is provided with and is used for control X-ray production apparatus (5) third telescopic link (14) of every single move about along with detector (13).

3. The mobile high-energy ray device for detecting defects of extra-high voltage station GIS equipment according to claim 2, characterized in that: a horizontal shaft for hinging a detector (13) is transversely arranged at the free end of the second support arm (7), two first bevel gears (11) which are oppositely arranged are arranged on the horizontal shaft, and any one first bevel gear (11) is in driving connection with a first servo motor (10) fixedly arranged on the side wall of the second support arm (7); and a second bevel gear (12) which is meshed with the two first bevel gears (11) at the same time is also rotatably arranged on the horizontal shaft, and the bottom of the second bevel gear (12) is fixedly connected with the detector (13).

4. The mobile high-energy ray device for detecting defects of extra-high voltage station GIS equipment according to claim 3, characterized in that: the fixed carousel (3) that is provided with in support (4) bottom, carousel (3) and the steering mechanism drive connection of setting in base (2), steering mechanism has driving motor and reduction gear, the driving-disc of the output shaft connection of reduction gear with carousel (3) drive connection.

5. The mobile high-energy ray device for detecting defects of extra-high voltage station GIS equipment according to any one of claims 1 to 4, characterized in that: the roller mechanism (1) comprises a hub support (101) which is detachably and fixedly connected with the base (2), a U-shaped fork arm (110) used for installing a toothed hub (109) is rotatably installed at the bottom of the hub support (101), and a steering unit which is installed on the hub support (101) and used for driving a driving unit for driving the toothed hub (109) to rotate and driving the toothed hub (109) to steer is arranged.

6. The mobile high-energy ray device for detecting defects of extra-high voltage station GIS equipment according to claim 5, characterized in that: the driving unit comprises a second servo motor (102) installed on a hub support (101), a first driving wheel (103) is arranged on an output shaft of the second servo motor (102), the first driving wheel (103) is connected with a first driven wheel (104) in a driving mode, a first gear (105) coaxially arranged with the first driven wheel (104) is meshed with a second gear (106), and a third bevel gear (107) coaxially arranged with the second gear (106) is meshed with a bevel gear ring (108) arranged on the side wall of a toothed hub (109).

7. The mobile high-energy ray device for detecting defects of extra-high voltage station GIS equipment according to claim 6, characterized in that: the steering unit comprises a third servo motor (111) arranged on a hub support (101), a second driven wheel (112) in driving connection with the third servo motor (111), and a third driven wheel (113) coaxially arranged with the second driven wheel (112), wherein the third driven wheel (113) is in driving connection with a fourth driven wheel (114), and the bottom of the fourth driven wheel (114) is fixedly connected with a U-shaped fork arm (110) and rotationally connected with the hub support (101).

8. The mobile high-energy ray device for detecting defects of extra-high voltage station GIS equipment according to claim 6, characterized in that: and an anti-skid roller (115) is detachably and fixedly arranged on the outer peripheral side of the toothed hub (109).

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