Double-eddy-current probe push-pull device

Abstract

The invention discloses a double-eddy-current probe push-pull device which comprises a push-pull module, the push-pull module comprises a first motor, the first motor is provided with a first output end and a second output end, and the first output end and the second output end work synchronously; the first output end and the second output end are connected with clamping mechanisms respectively, each clamping mechanism comprises a plurality of rubber wheels used for clamping the push-pull eddy current probe, and at least one rubber wheel is connected to the output end of the first motor through a first transmission mechanism. In order to overcome the defects of existing equipment, the double-eddy-current probe push-pull device is designed, two clamping mechanisms are driven by one motor, space is saved, and the installation time of workers is saved. And meanwhile, the eddy current collection efficiency is greatly improved through double-probe collection, and the maintenance period of the heat transfer tube of the steam generator is shortened.

Description

Technical Field

[0001] This application relates to the field of inspection of heat transfer tubes in steam generators of nuclear power plants, and particularly to a double eddy current probe pushing and pulling device. Background Art

[0002] The steam generator is one of the important main equipment in a pressurized water reactor nuclear power plant, mainly composed of thousands of U-shaped heat transfer tubes. To effectively supervise the quality of the heat transfer tubes, different specifications require regular eddy current inspections, and a pushing and pulling device is needed to push the eddy current probe to the heat transfer tube to collect eddy current signals. Most of the multiple pushing and pulling devices currently used in the market for eddy current inspections of heat transfer tubes in steam generators adopt a single-probe collection mode. The probe is pushed by means of motor drive, and the probe is retrieved by means of motor drive or pneumatic drive. The clamping of the probe adopts the method of controlling rubber wheels or belts to be tightened by a cylinder, and the cooperation of the three realizes the control of the forward or backward pulling of the probe.

[0003] Most of the existing equipment can only control a single probe, and the collection efficiency is relatively low. If the collection efficiency is to be improved, two pushing and pulling devices need to be arranged simultaneously, which puts more requirements on the use space of the site. Due to the particularity of nuclear power, the space for implementing the eddy current inspection of the heat transfer tubes in the steam generator is very limited. If multiple pushing and pulling devices are arranged simultaneously, the access of personnel is very restricted, which is not convenient for operations such as replacing the probe. And due to the increase in equipment, the time for personnel to deploy the equipment is increased, and the exposure dose of personnel is increased. At the same time, since the existing pushing and pulling device adopts an electrical cooperation method, there are many requirements for the on-site power supply and gas source, which increases the difficulty of preparation before the project implementation.

[0004] Therefore, it is necessary to develop a new type of eddy current probe pushing and pulling device. Summary of the Invention

[0005] In order to solve one of the technical problems existing in the prior art, this application provides a double eddy current probe pushing and pulling device, which reduces the occupied space of the site, reduces the equipment deployment time, improves the eddy current collection efficiency, increases the operation safety of personnel, and reduces the burden on the on-site preparation.

[0006] According to some embodiments of this application, a double eddy current probe pushing and pulling device includes a pushing and pulling module. The pushing and pulling module includes a first motor, the first motor has two output ends, namely a first output end and a second output end, and the first output end and the second output end work synchronously; the first output end and the second output end are respectively connected with a clamping mechanism, and each clamping mechanism respectively includes a plurality of rubber wheels for clamping and pushing the eddy current probe, and at least one of the rubber wheels is connected to the output end of the first motor through a first transmission mechanism.

[0007] In some embodiments, the first motor includes a motor stator and a rotor shaft, and the first output end and the second output end are respectively arranged at two ends of the rotor shaft.

[0008] In some embodiments, a first clutch mechanism is respectively arranged between the output end of the first motor and the first transmission mechanism; the first transmission mechanism includes a first transmission shaft and a second transmission shaft; one end of the first transmission shaft is connected to the output end of the first motor, a first gear is arranged at the other end of the first transmission shaft, the first clutch mechanism is arranged between the first transmission shaft and the first gear, the first clutch mechanism includes a first friction plate, a first armature and a first electromagnetic coil, the first friction plate is arranged on the first transmission shaft, the first armature is arranged on the first gear, after the first electromagnetic coil is electrified to generate a magnetic field, the first armature is adsorbed to the first friction plate, so that the first transmission shaft drives the first gear to rotate; one end of the second transmission shaft is connected to the clamping mechanism, a second gear is arranged at the other end of the second transmission shaft, and the first gear and the second gear are engaged with each other.

[0009] In some embodiments, a first elastic member is arranged between the first gear and the first armature, and the elastic force of the first elastic member urges the first armature and the first friction plate to separate along the axial direction of the first transmission shaft.

[0010] In some embodiments, the push-pull module further includes a control mechanism, and the control mechanism is respectively connected to the first electromagnetic coils of the two first clutch mechanisms.

[0011] In some embodiments, a winding module is further included, and the winding module includes two winding disks for winding the eddy current probe; along the direction in which the push-pull module pushes the eddy current probe, the two winding disks are respectively arranged behind the corresponding push-pull modules.

[0012] In some embodiments, the winding module further includes a second motor, and the second motor works in cooperation with the first motor; the second motor has two output ends, namely a third output end and a fourth output end, and the third output end and the fourth output end are respectively connected to the two winding disks through a second transmission mechanism.

[0013] In some embodiments, a second clutch mechanism is respectively provided between the output end of the second motor and the second transmission mechanism; the second clutch mechanism includes a third transmission shaft and a fourth transmission shaft; one end of the third transmission shaft is connected to the output end of the second motor, a transmission spline is provided at the other end of the third transmission shaft, and a fifth bearing is provided between the transmission spline and the third transmission shaft. A second transmission disc is further provided on the third transmission shaft, the second transmission disc rotates with the third transmission shaft, a second friction plate and a second electromagnetic coil are provided on the second transmission disc, a second armature is provided in the direction of the transmission spline towards the second transmission disc, and after the second electromagnetic coil is energized, a magnetic field is generated to adsorb the second armature to the second friction plate, so that the third transmission shaft drives the transmission spline to rotate; one end of the fourth transmission shaft is connected to the second transmission mechanism, and the other end of the fourth transmission shaft is connected to the spline portion of the transmission spline. When the transmission spline rotates, the fourth transmission shaft is driven to rotate through spline fit.

[0014] In some embodiments, a second elastic member is provided between the second armature and the transmission spline, and the elastic force of the second elastic member is to urge the second armature and the second friction plate to separate along the axial direction of the third transmission shaft.

[0015] In some embodiments, a first connector interface is provided on the control mechanism, a second connector interface is provided on the winding module, and the second connector interface of the winding module is docked to the first connector interface on the control mechanism, so that the second electromagnetic coil is connected to the control mechanism.

[0016] The beneficial effects of the present application are as follows: In view of the deficiencies of the existing equipment, the present application designs a double eddy current probe pushing and pulling device, which uses one motor to drive two clamping mechanisms, saving space and installation time for personnel. At the same time, the acquisition of double probes greatly improves the eddy current acquisition efficiency and reduces the maintenance period of the heat transfer tubes of the steam generator.

[0017] Other features and advantages of the present application will be described in the following specification, and part of them will become obvious from the specification, or be understood by implementing the present application. The objectives and other advantages of the present application can be realized and obtained through the structures specifically pointed out in the specification, claims and drawings. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the present application, the present application will be further described below in conjunction with the drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0019] Figure 1 It is a schematic structural diagram of the double-eddy-current probe pushing and pulling device provided by this application;

[0020] Figure 2 It is a schematic structural diagram of the pushing and pulling module;

[0021] Figure 3 It is a cross-sectional view of the pushing and pulling module;

[0022] Figure 4 It is a schematic structural diagram of the first clutch mechanism in the pushing and pulling module;

[0023] Figure 5 It is a schematic structural diagram of the winding module;

[0024] Figure 6 It is a schematic structural diagram of the second clutch mechanism in the winding module.

[0025] Label description:

[0026] Pushing and pulling module 1, first motor 1.1, motor stator 1.1.1, rotor shaft 1.1.2, control mechanism 1.2, first connector interface 1.2.1, first clutch mechanism 1.3, first transmission shaft 1.3.1, first transmission disk 1.3.2, first bearing 1.3.3, first coil fixing bracket 1.3.4, first electromagnetic coil 1.3.5, second bearing 1.3.6, first friction plate 1.3.7, first armature 1.3.8, first elastic member 1.3.9, first gear 1.3.10, third bearing 1.3.11, first transmission mechanism 1.4, second transmission shaft 1.4.1, second gear 1.4.2, clamping mechanism 1.5, rubber wheel 1.5.1, clamping electric cylinder 1.5.2;

[0027] Winding module 2, second motor 2.1, second clutch mechanism 2.2, end cover 2.2.1, third transmission shaft 2.2.2, fourth bearing 2.2.3, second coil fixing bracket 2.2.4, second electromagnetic coil 2.2.5, second transmission disk 2.2.6, second friction plate 2.2.7, second armature 2.2.8, second elastic member 2.2.9, spacer block 2.2.10, fifth bearing 2.2.11, transmission spline 2.2.12, sixth bearing 2.2.13, second transmission mechanism 2.3, second connector interface 2.3.1, fourth transmission shaft 2.3.2, triangular chuck 2.4, winding disk 2.5. Specific implementation mode

[0028] The present application will be further described in detail below in conjunction with the specific embodiments and the accompanying drawings. Similar elements in different embodiments are denoted by related similar element numbers. In the following embodiments, many detailed descriptions are provided to enable a better understanding of the present application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid overwhelming the core part of the present application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and the general technical knowledge in the art.

[0029] In addition, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can also be reordered or adjusted in an obvious manner by those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment, and do not mean that they are the necessary sequences, unless it is stated that a certain sequence must be followed.

[0030] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described, and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connection (coupling).

[0031] The following will further elaborate on a double eddy current probe pushing and pulling device proposed in the present application in conjunction with the Figures 1 to 6 embodiments provided.

[0032] In some embodiments, as Figure 1 shown, the present application provides a double eddy current probe pushing and pulling device, which includes a pushing and pulling module 1 and a winding module 2. The pushing and pulling module 1 is responsible for pushing or pulling back the eddy current probe, and the winding module 2 is responsible for keeping the eddy current probe taut when it advances or recovering the eddy current probe when it is pulled back.

[0033] In some embodiments, as Figure 2 and Figure 3As shown, the taper module 1 includes a first motor 1.1 which has two output ends, namely a first output end and a second output end, and the first output end and the second output end work synchronously. The first output end and the second output end are respectively connected with a clamping mechanism 1.5. Each clamping mechanism 1.5 includes a plurality of rubber wheels 1.5.1 for clamping the taper eddy current probe, and at least one rubber wheel 1.5.1 is connected to the output end of the first motor 1.1 through a first transmission mechanism 1.4. In view of the deficiencies of the existing equipment, the present application designs a double-eddy current probe pushing and pulling device, which uses one motor to drive two clamping mechanisms, saving space and installation time for personnel. At the same time, the acquisition of double probes greatly improves the eddy current acquisition efficiency and reduces the maintenance period of the heat transfer tubes of the steam generator.

[0034] In some embodiments, as Figure 2 shown, each clamping mechanism 1.5 is provided with four rubber wheels 1.5.1 and a clamping electric cylinder 1.5.2 to clamp the eddy current probe and push or pull back the eddy current probe by the rotation of the rubber wheels 1.5.1.

[0035] In some embodiments, as Figure 3 shown, the first motor 1.1 includes a motor stator 1.1.1 and a rotor shaft 1.1.2. The first output end and the second output end are respectively arranged at both ends of the rotor shaft 1.1.2, making more reasonable use of space and ensuring the synchronism of the first output end and the second output end at the same time.

[0036] In some embodiments, as Figure 3 and Figure 4As shown, a first clutch mechanism 1.3 is respectively arranged between the output end of the first motor 1.1 and the first transmission mechanism 1.4. Specifically, the first transmission mechanism 1.4 includes a first transmission shaft 1.3.1 and a second transmission shaft 1.4.1. One end of the first transmission shaft 1.3.1 is connected to the output end of the first motor 1.1, and the first motor 1.1 drives the first transmission shaft 1.3.1 to rotate forward or backward. A first gear 1.3.10 is arranged at the other end of the first transmission shaft 1.3.1. Along the radial direction of the first transmission shaft 1.3.1, a third bearing 1.3.11 is arranged between the first gear 1.3.10 and the first transmission shaft 1.3.1, and the third bearing 1.3.11 is a deep groove ball bearing. When the first transmission shaft 1.3.1 rotates at a high speed, due to the blocking of the third bearing 1.3.11, the first gear 1.3.10 can remain stationary; one end of the second transmission shaft 1.4.1 is connected to the clamping mechanism 1.5, and a second gear 1.4.2 is arranged at the other end of the second transmission shaft 1.4.1. The first gear 1.3.10 and the second gear 1.4.2 are engaged with each other. When the first gear 1.3.10 rotates, the second transmission shaft 1.4.1 is driven to rotate through the second gear 1.4.2. In this embodiment, the first clutch mechanism 1.3 is arranged between the first transmission shaft 1.3.1 and the first gear 1.3.10. The first clutch mechanism 1.3 includes a first electromagnetic coil 1.3.5, a first friction plate 1.3.7 and a first armature 1.3.8. A first transmission disc 1.3.2 is sleeved on the first transmission shaft 1.3.1, and the first transmission disc 1.3.2 rotates with the first transmission shaft 1.3.1. Along the axial direction of the first transmission shaft 1.3.1, the first friction plate 1.3.7 is arranged on the side of the first transmission disc 1.3.2 facing the first gear 1.3.10, and at the same time, the first armature 1.3.8 is arranged on the side of the first gear 1.3.10 facing the first transmission disc 1.3.2; a first coil fixing frame 1.3.4 is arranged inside the first transmission disc 1.3.2, the first electromagnetic coil 1.3.5 is installed inside the first coil fixing frame 1.3.4, and a first bearing 1.3.3 is arranged between the first coil fixing frame 1.3.4 and the first transmission disc 1.3.2. Due to the blocking of the first bearing 1.3.3, when the first transmission disc 1.3.2 rotates at a high speed, the first coil fixing frame 1.3.4 and the first electromagnetic coil 1.3.5 can remain stationary. Further, a second bearing 1.3.6 is arranged between the first transmission disc 1.3.2 and the clutch housing. In this embodiment, when the first electromagnetic coil 1.3.5 is energized to generate a magnetic field, the originally separated first armature 1.3.8 is adsorbed to the first friction plate 1.3.7, the first gear 1.3.10 enters the engaged state, and the first transmission disc 1.3.2 can drive the first gear 1.3.10 to rotate through the first friction plate 1.3.7.By providing two first clutch mechanisms 1.3, either output end of the first motor 1.1 can be independently controlled to drive the corresponding first transmission mechanism 1.4, thereby controlling any one of the clamping mechanisms 1.5 to operate. Alternatively, both output ends of the first motor 1.1 can be simultaneously controlled to drive the corresponding first transmission mechanisms 1.4, thereby controlling the two clamping mechanisms 1.5 to operate simultaneously. That is, through the two first clutch mechanisms 1.3, power can be selectively transmitted to the two first transmission mechanisms 1.4 according to actual needs, thereby independently controlling the operating states of the two clamping mechanisms 1.5.

[0037] Further, in some embodiments, as Figure 4 shown, a first elastic member 1.3.9 may also be provided between the first gear 1.3.10 and the first armature 1.3.8. For example, the first elastic member 1.3.9 can be a high-torque spring plate. Along the axial direction of the first transmission shaft 1.3.1, both ends of the first elastic member 1.3.9 are fixedly connected to the first gear 1.3.10 and the first armature 1.3.8 respectively, so that the elastic force of the first elastic member 1.3.9 acts to separate the first armature 1.3.8 and the first friction plate 1.3.7 along the axial direction of the first transmission shaft 1.3.1. When the first electromagnetic coil 1.3.5 loses power and the magnetic field disappears, under the action of the first elastic member 1.3.9, the first armature 1.3.8 is pushed away from the first transmission disk 1.3.2 of the first transmission shaft 1.3.1, causing the first armature 1.3.8 and the first friction plate 1.3.7 to separate. The first armature 1.3.8 returns to the off-line state, and the rotation of the first transmission shaft 1.3.1 cannot drive the first gear 1.3.10 to rotate.

[0038] In some embodiments, as Figure 2 shown, the push-pull module 1 further includes a control mechanism 1.2. The control mechanism 1.2 is respectively connected to the first electromagnetic coils 1.3.5 of the two first clutch mechanisms 1.3, and the control mechanism 1.2 is also connected to the first motor 1.1. Through the control software in the control mechanism 1.2, the operation of the first motor 1.1 can be monitored and controlled, and the states of the two first clutch mechanisms 1.3 can be independently set, thereby controlling any one or both of the two clamping mechanisms 1.5 to operate simultaneously.

[0039] In some embodiments, as Figure 2 shown, a clamping electric cylinder 1.5.2 for controlling the gap size between the control rubber wheels 1.5.1 is further provided on the clamping mechanism 1.5. The clamping electric cylinder 1.5.2 is connected to the control mechanism 1.2. Through the clamping electric cylinder 1.5.2, the gap width between the rubber wheels 1.5.1 can be controlled, so as to adapt to and clamp eddy current probes of different sizes and ensure the normal implementation of the push-pull operation.

[0040] In some embodiments, as Figure 1 and Figure 5As shown in the figure, the rewinding module 2 includes two winding disks 2.5 for winding eddy current probes; along the direction in which the push-pull module 1 pushes the eddy current probe, the two winding disks 2.5 are respectively arranged behind the corresponding push-pull module 1. By providing the winding disks 2.5, the extra eddy current probes can be effectively stored, and at the same time, the push-pull module 1 can be assisted in setting the tension of the eddy current probe.

[0041] In some embodiments, as Figure 5 shown in the figure, the rewinding module 2 further includes a second motor 2.1, wherein the second motor 2.1 is connected to the control mechanism 1.2, and the second motor 2.1 and the first motor 1.1 work together; the second motor 2.1 has two output ends, namely a third output end and a fourth output end, and the third output end and the fourth output end are respectively connected to the two winding disks 2.5 through two second transmission mechanisms 2.3. Among them, the third output end and the fourth output end are respectively arranged at both ends of the second motor 2.1, which makes more reasonable use of space and ensures the synchronization of the third output end and the fourth output end. In this application, the second transmission mechanism 2.3 can adopt any one or a combination of two of gear transmission or belt transmission to output power.

[0042] In some embodiments, as Figure 5 shown in the figure, the rewinding module 2 further includes two triangular chucks 2.4, and the triangular chucks 2.4 are directly connected to the output shafts of the second transmission mechanisms 2.3 and maintain synchronization by means of tangent surface fitting; the winding disks 2.5 are fixed by three elbow clamps on the triangular chucks 2.4 to ensure that the winding disks 2.5 still maintain synchronization with the triangular chucks 2.4 when the triangular chucks 2.4 are driven by the output shafts of the second transmission mechanisms 2.3 to rotate at high speed.

[0043] In some embodiments, as Figure 6As shown, a second clutch mechanism 2.2 is respectively provided between the output end of the second motor 2.1 and the second transmission mechanism 2.3. Specifically, an end cover 2.2.1 is provided between the second clutch mechanism 2.2 and the second motor 2.1. The second clutch mechanism 2.2 includes a third transmission shaft 2.2.2 and a fourth transmission shaft 2.3.2. The end cover 2.2.1 contains bearings to provide support for the third transmission shaft 2.2.2. One end of the third transmission shaft 2.2.2 is connected to the output end of the second motor 2.1, and the second motor 2.1 drives the third transmission shaft 2.2.2 to rotate forward or backward. A transmission spline 2.2.12 is provided at the other end of the third transmission shaft 2.2.2; a fifth bearing 2.2.11 is provided between the smooth part of the inner circle of the transmission spline 2.2.12 and the third transmission shaft 2.2.2. The fifth bearing 2.2.11 is a deep groove ball bearing. When the third transmission shaft 2.2.2 rotates at a high speed, due to the block of the fifth bearing 2.2.11, the transmission spline 2.2.12 can remain stationary. Further, a sixth bearing 2.2.13 can also be provided between the transmission spline 2.2.12 and the clutch housing. A second transmission disk 2.2.6 is also provided on the third transmission shaft 2.2.2. The second transmission disk 2.2.6 rotates with the third transmission shaft 2.2.2. A second friction plate 2.2.7 and a second electromagnetic coil 2.2.5 are provided on the second transmission disk 2.2.6. A second coil fixing frame 2.2.4 is provided inside the second transmission disk 2.2.6. The second electromagnetic coil 2.2.5 is installed in the second coil fixing frame 2.2.4. A fourth bearing 2.2.3 is provided between the second coil fixing frame 2.2.4 and the second transmission disk 2.2.6. Due to the block of the fourth bearing 2.2.3, when the second transmission disk 2.2.6 rotates at a high speed, the second coil fixing frame 2.2.4 and the second electromagnetic coil 2.2.5 can remain stationary. A second armature 2.2.8 is provided in the direction of the second transmission disk 2.2.6 on the transmission spline 2.2.12. In this embodiment, when the second electromagnetic coil 2.2.5 is energized to generate a magnetic field, the originally separated second armature 2.2.8 is adsorbed to the second friction plate 2.2.7, and the transmission spline 2.2.12 enters the engaged state. The second transmission disk 2.2.6 can drive the transmission spline 2.2.12 to rotate through the second friction plate 2.2.7. One end of the fourth transmission shaft 2.3.2 is connected to the second transmission mechanism 2.3. The output shaft of the second transmission mechanism 2.3 is connected to a winding disk 2.5 fixed on a triangular chuck 2.4. The other end of the fourth transmission shaft 2.3.2 is connected to the spline part of the transmission spline 2.2.12. When the transmission spline 2.2.12 rotates, it drives the fourth transmission shaft 2.3.2 to rotate through spline fit, and the fourth transmission shaft 2.3.2 then drives the winding disk 2.5 to act through the corresponding second transmission mechanism 2.3.In this application, through two second clutch mechanisms 2.2, the power can be selectively transmitted to two second transmission mechanisms 2.3 according to actual needs, so as to independently control the working states of two groups of winding disks 2.5 to cooperate with the clamping mechanism 1.5.

[0044] In some embodiments, as Figure 6 shown, a second elastic member 2.2.9 may be further provided between the transmission spline 2.2.12 and the second armature 2.2.8. Along the axial direction of the transmission spline 2.2.12, one end of the second elastic member 2.2.9 is fixedly connected to the transmission spline 2.2.12, and the other end is fixedly connected to the second armature 2.2.8. The elastic force of the second elastic member 2.2.9 is to urge the second armature 2.2.8 and the second friction plate 2.2.7 to separate along the axial direction of the third transmission shaft 2.2.2. When the second electromagnetic coil 2.2.5 loses power and the magnetic field disappears, under the action of the second elastic member 2.2.9, the second armature 2.2.8 is pulled towards the transmission spline 2.2.12, so that the second armature 2.2.8 is separated from the second friction plate 2.2.7, and the second armature 2.2.8 returns to the off-line state. The rotation of the third transmission shaft 2.2.2 cannot drive the transmission spline 2.2.12 to rotate. Further, in order to protect the transmission spline 2.2.12 from being collided by the second armature 2.2.8 pulled back during the action of the second elastic member 2.2.9, a cushion block 2.2.10 is provided between the transmission spline 2.2.12 and the second armature 2.2.8, and the cushion block 2.2.10 plays a role in buffering and protecting the transmission spline 2.2.12.

[0045] In some embodiments, as Figure 2 and Figure 5 shown, a first connector interface 1.2.1 is provided on the control mechanism 1.2, and a second connector interface 2.3.1 is provided on the winding module 2. The second connector interface 2.3.1 of the winding module 2 is docked to the first connector interface 1.2.1 on the control mechanism 1.2, so that the second electromagnetic coil 2.2.5 is connected to the control mechanism 1.2, and the reliability of the connection between the push-pull module 1 and the winding module 2 is ensured.

[0046] The double-eddy-current probe pushing and pulling device of the present application adopts a modular design, including a pushing and pulling module 1 and a winding module 2. During on-site layout, the pushing and pulling module 1 and the winding module 2 can be directly connected in a quick-connect manner, which is convenient for assembly and small in size. After connecting the pushing and pulling module 1 and the winding module 2, install the eddy-current probe on the winding disc 2.5 and ensure that it passes through the rubber wheel 1.5.1 of the pushing and pulling module 1. Connect the power supply and the control software. Operate the control software to control the clamping cylinder 1.5.2 of the pushing and pulling module 1 to shorten the distance between the rubber wheels 1.5.1, thereby clamping the eddy-current probe. According to actual needs, energize the electromagnetic coils in the first clutch mechanism 1.3 and the second clutch mechanism 2.2 on the corresponding sides of the pushing and pulling module 1 and the winding module 2, that is, select the side of power transmission to control the forward or backward movement of the corresponding eddy-current probe; or the electromagnetic coils of the first clutch mechanism 1.3 and the second clutch mechanism 2.2 on both sides can be energized simultaneously to control the forward or backward movement of the two eddy-current probes at the same time to improve efficiency.

[0047] It can be understood that the above embodiments only represent the preferred embodiments of the present application, and the description is relatively specific and detailed, but it cannot be construed as a limitation on the patent scope of the present application; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present application; therefore, all equivalent transformations and modifications made to the scope of the claims of the present application shall fall within the scope covered by the claims of the present application.

Claims

1. A dual eddy current probe pushing and pulling device, characterized in that: It includes a push-pull module, the push-pull module includes a first motor, the first motor has two output ends, a first output end and a second output end, and the first output end and the second output end work synchronously; The first output end and the second output end are respectively connected to a clamping mechanism, each of the clamping mechanisms comprises a plurality of rubber wheels for clamping and pushing the eddy current probe, wherein at least one of the rubber wheels is connected to the output end of the first motor through a first transmission mechanism.

2. A dual eddy current probe pushing and pulling device as claimed in claim 1, characterized in that: The first motor includes a motor stator and a rotor shaft, and the first output end and the second output end are respectively arranged at two ends of the rotor shaft.

3. A dual eddy current probe pushing and pulling device as claimed in claim 1, characterized in that: A first clutch mechanism is respectively provided between the output end of the first motor and the first transmission mechanism; The first transmission mechanism includes a first transmission shaft and a second transmission shaft; One end of the first transmission shaft is connected to the output end of the first motor, and the other end of the first transmission shaft is provided with a first gear. The first clutch mechanism is provided between the first transmission shaft and the first gear. The first clutch mechanism comprises a first friction plate, a first armature and a first electromagnetic coil. The first friction plate is provided on the first transmission shaft, and the first armature is provided on the first gear. When the first electromagnetic coil is energized, a magnetic field is generated to attract the first armature to the first friction plate, so that the first transmission shaft drives the first gear to rotate. One end of the second transmission shaft is connected to the clamping mechanism, and the other end of the second transmission shaft is provided with a second gear, and the first gear and the second gear are meshed with each other.

4. A dual eddy current probe pushing and pulling device as claimed in claim 3, characterized in that: A first elastic member is arranged between the first gear and the first armature, and the elastic force of the first elastic member causes the first armature and the first friction plate to separate along the axial direction of the first transmission shaft.

5. A dual eddy current probe pushing and pulling device as claimed in claim 3 or 4, characterized in that: The push-pull module further comprises a control mechanism, and the control mechanism is respectively connected to the first electromagnetic coils of the two first clutch mechanisms.

6. A dual eddy current probe pushing and pulling device as claimed in claim 5, characterized in that: It also includes a winding module, wherein the winding module includes two winding reels for winding the eddy current probe; Along the direction in which the pushing and pulling module pushes the eddy current probe, the two winding reels are respectively arranged behind the corresponding clamping mechanisms.

7. A dual eddy current probe pushing and pulling device as claimed in claim 6, characterized in that: The winding module further includes a second motor, and the second motor works in coordination with the first motor; The second motor has two output ends, a third output end and a fourth output end. The third output end and the fourth output end are respectively connected to the two winding reels through a second transmission mechanism.

8. A dual eddy current probe pushing and pulling device as claimed in claim 7, characterized in that: A second clutch mechanism is respectively provided between the output end of the second motor and the second transmission mechanism; The second clutch mechanism includes a third transmission shaft and a fourth transmission shaft; One end of the third transmission shaft is connected to the output end of the second motor, the other end of the third transmission shaft is provided with a transmission spline, and a fifth bearing is provided between the transmission spline and the third transmission shaft, a second transmission disc is further provided on the third transmission shaft, the second transmission disc rotates following the third transmission shaft, a second friction plate and a second electromagnetic coil are provided on the second transmission disc, a second armature is provided in the direction of the transmission spline toward the second transmission disc, and a magnetic field is generated when the second electromagnetic coil is energized, so that the second armature is attracted to the second friction plate, so that the third transmission shaft drives the transmission spline to rotate; One end of the fourth transmission shaft is connected to the second transmission mechanism, and the other end of the fourth transmission shaft is connected to the spline portion of the transmission spline. When the transmission spline rotates, the fourth transmission shaft is driven to rotate through the spline cooperation.

9. A dual eddy current probe pushing and pulling device as claimed in claim 8, characterized in that: A second elastic member is provided between the second armature and the transmission spline, and the elastic force of the second elastic member is used to promote the second armature and the second friction plate to separate along the axial direction of the third transmission shaft.

10. A dual eddy current probe pushing and pulling device as claimed in claim 9, characterized in that: The control mechanism is provided with a first connector interface, and the winding module is provided with a second connector interface. The second connector interface of the winding module is connected to the first connector interface on the control mechanism, so that the second electromagnetic coil is connected to the control mechanism.

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