Measurement assistance device applied to measurement in inner cavity of open-entry device

Abstract

A measurement assistance device applied to measurement in an inner cavity of an open-entry device. The measurement assistance device comprises a support component, a rotating component, fixed deformation components, a telescopic component, a moving component and a buffer component. The assistance device has two operating states, i.e., a retracted state and a deployed state. In the retracted state, multiple stages of rods of the telescopic component of the assistance device are folded, connecting rods of the fixed deformation components are retracted, the overall radial dimension of the assistance device is reduced, and the assistance device can enter a mounting and clamping position through an entry of a device waiting for measurement. In the deployed state, the multiple stages of rods of the telescopic component of the assistance device are unfolded, and the connecting rods of the fixed deformation components extend outward, thereby fixing the assistance device to the mounting position of a device waiting for measurement, and delivering probes to a position waiting for measurement.

Description

A detection auxiliary device applied to open inlet equipment inner cavity detection TECHNICAL FIELD

[0001] The present application relates to the technical field of detection auxiliary devices of mechanical structures, and particularly relates to a detection auxiliary device applied to open inlet equipment inner cavity detection. BACKGROUND

[0002] When the rotor is assembled, the rotor is composed of multiple parts connected as a whole, and interference fit joint forms are used between the parts. The interference fit joint form connects the connecting parts between different connecting members. The containment member needs to be heated and processed, or the connecting member installed in the base hole needs to be cooled and processed to change the outer shape size. Then the containment member or the connecting member is installed in the assembly position, so that the assembly work of the interference fit connection position is completed. When the interference fit connection structure is assembled, the bolt assembly work starts in the process of the connecting member and the connected member being cooled to room temperature. After the connecting member and the connected member are connected, the non-uniform deformation and springback of the connecting member and the connected member during the cooling to room temperature may cause uneven fit of the installation edge in the final assembly state, and finally cause the decline of the overall assembly quality, and even the inclination of the axis in the final assembly state. This leads to the problems of the final part assembly not being in place and the assembly quality being unqualified.

[0003] The current traditional assembly process will tighten multiple bolts during the interference fit assembly process of the parts in the assembly process. However, the tightening process of the multiple bolts cannot be synchronized, and the equipment test piece deforms continuously during the tightening process due to the long tightening time of the nuts. This affects the uniformity of the fit of the connecting installation edge. For the rotor assembly process, the nut connection position is located in the small and narrow inner cavity of the rotor, which further increases the difficulty of the bolt assembly. Finally, the equipment quality of the equipment test piece is unknown, which may cause poor final assembly interface connection stiffness and affect the final equipment quality.

[0004] In order to overcome the above problems, the present application provides a detection auxiliary device applied to open inlet equipment inner cavity detection, which can detect physical quantities in a complex small inlet long depth inner cavity structure, such as the connection stiffness of the key physical parameters of the rotor inner cavity bolt-stop joint assembly quality, and preliminarily judge whether the assembly quality is qualified. TECHNICAL PROBLEM

[0005] The purpose of the present application is to provide a detection auxiliary device applied to open inlet equipment inner cavity detection, which can enter the inner cavity of the open inlet equipment to realize the auxiliary function of detection work, help realize the placement, fixation and switching position of the probe through the probe, and complete the test work of the internal physical quantity. TECHNICAL SOLUTION

[0006] A detection auxiliary device applied to open inlet equipment inner cavity detection, comprising: support component, rotating component, fixed deformation component, telescopic component, moving component and buffer component;

[0007] The support component comprises a guide rail support and a rotating base; the guide rail support is connected to the moving component and the rotating component; the rotating base is connected to the rotating component and the fixed deformation component;

[0008] The moving component comprises a sliding block and a guide rail; the guide rail is fixed to the guide rail support; the sliding block moves on the guide rail and is connected to one end of the telescopic component; the other end of the telescopic component is connected to the buffer component;

[0009] The rotating component comprises a main rotating shaft 33, a connecting rod and a rotating disc; the rotating disc is divided into an upper rotating disc and a lower rotating disc; the upper rotating disc is fixedly connected to the main rotating shaft 33, and the lower rotating disc rotates and moves relative to the main rotating shaft 33; the rotating base is fixed on the rotating disc and connected to the fixed deformation component through the connecting rod.

[0010] The upper rotating disc comprises an upper bearing outer ring outer disc 34, an upper bearing outer ring inner disc 35, an upper bearing inner ring outer disc 36, an upper bearing inner ring inner disc 37 and an upper bearing 38; the upper bearing inner ring outer disc 36 and the upper bearing inner ring inner disc 37 are connected to the bearing inner ring of the upper bearing 38, and the upper bearing outer ring outer disc 34 and the upper bearing outer ring inner disc 35 are connected to the bearing outer ring of the upper bearing 38, thereby forming inner and outer rotating installation surfaces connected to the inner and outer rings of the upper bearing 38 respectively; the upper bearing outer ring inner disc 35 is fixedly connected to the rotating base; and the upper bearing inner ring outer disc 36 is connected to the upper guide rail support 29.

[0011] The lower rotating disc comprises a lower bearing outer ring inner disc 39, a lower bearing outer ring outer disc 40, a lower bearing 41, a lower bearing inner ring inner disc 42, a lower bearing inner ring outer disc 43 and a linear bearing c44; the lower bearing inner ring inner disc 42 and the lower bearing inner ring outer disc 43 are connected to the bearing inner ring of the lower bearing 41, and the lower bearing outer ring inner disc 39 and the lower bearing outer ring outer disc 40 are connected to the bearing outer ring of the lower bearing 41, thereby forming inner and outer rotating installation surfaces connected to the inner and outer rings of the lower bearing 41 respectively; the linear bearing c44 is connected to the lower bearing outer ring inner disc 39 and installed on the inner installation surface of the bearing inner ring, thereby realizing relative rotation and movement with the main rotating shaft 33; the lower bearing outer ring inner disc 39 is fixedly connected to the rotating base; and the lower bearing inner ring outer disc 43 is connected to the guide rail support; the relative rotation between the upper rotating disc and the lower rotating disc and the movement in the axial direction of the main rotating shaft 33 are realized through the main rotating shaft 33.

[0012] The fixed deformation component includes a pressing block, a clamping claw 46, a rotating shaft 48 and a torsion spring; a connecting rod is connected to the clamping claw 46 through a clamping claw rotating shaft; the two ends of the clamping claw 46 are connected to the pressing block through the rotating shaft 48; the torsion spring 49 is installed on the rotating shaft 48, and is used for providing a torque to the pressing block.

[0013] The telescopic component is divided into upper and lower probe arms and is placed in mirror symmetry; the probe arm is a three-stage rotating rod group structure, and the rod groups at each stage are connected through rotating shafts and deep groove ball bearings; in the unfolded state, the three rod groups are rotated to the same straight line direction; in the folded state, the three rod groups are rotated to the folded state; a buffer component is connected to the end of the probe arm, and the placement action of the probe in the buffer component to the to-be-measured part of the measured equipment is realized through the folding of the probe arm.

[0014] The buffer component includes a probe, a limiting rod, a linear bearing and a spring; the probe is divided into an upper probe 1 and a lower probe 7, and respectively contacts the to-be-measured surface of the measured part; the upper probe 1 and the lower probe 7 are respectively installed on a probe protection shell; the end of the probe arm is connected to one end of the limiting rod, and the other end of the limiting rod is limited to move in the probe protection shell on the linear bearing; a spring is sleeved on the limiting rod between the end of the probe arm and the probe protection shell; when working, the movement of the probe arm causes the two parts of the buffer component to move towards each other, the upper probe 1 and the lower probe 7 continue to be pressed by the pressure applied by the movement of the buffer component, so that the probe is tightly attached to the to-be-measured surface; at the same time, due to the continuous movement of the buffer component, the spring is compressed, and by keeping the compression amount of the spring constant, the pressure between the probe and the to-be-measured surface is kept stable.

[0015] The detection auxiliary device applied to the detection of the inner cavity of the open inlet equipment has two working states of a contracted state and an unfolded state. In the contracted state, the test probe and the multi-stage probe arm carrying the test probe are retracted, the fixed deformation component is retracted, and the overall radial size of the detection auxiliary device is reduced. At this time, the maximum outer cylindrical diameter of the mechanism is the minimum inner diameter size of the working equipment, that is, the maximum outer cylindrical diameter of the fixed deformation component needs to be smaller than the minimum diameter of the equipment inner cavity to be tested, so as to ensure that the detection auxiliary device can enter the equipment to be detected.

[0016] In the expanded state, the connecting rod in the fixed deformation component drives its rotation around the rotation axis when other components move linearly, realizing the extension displacement of the clamping part, and realizing the installation and fixation between the detection auxiliary device and the connected part under the cooperation of the clamping and pressing block. In the telescopic component, the multi-stage rod group moves and deforms, expands around the multi-stage rod rotation axis, realizes the extension of the probe expansion arm of the multi-stage rod, and realizes the placement of the probe from the storage position to the detection position. After the expansion installation and the extension and placement of the probe arm are completed, the detection auxiliary device can enter the detection working state. In the detection working state, the detection auxiliary device realizes the circumferential rotation of the probe arm through the rotating component, drives the probe to realize the circumferential position switching, and realizes the detection work of different detection points distributed on the index circle. The probe is lifted and lowered through the moving component, and the probe at the end of the probe arm can be subjected to a certain pressing force through the moving component, realizing the close contact between the probe and the measured part. The constant and stability of the pressing force is maintained through the buffer component, realizing the protection of the probe and the stability of the detection. Through the above functions, the inner cavity detection work of the open inlet equipment can be realized. Advantages

[0017] The detection auxiliary device for the inner cavity detection of the open inlet equipment described above is divided into an expanded state and a contracted state, and can be applied to the assembly part detection of the inner cavity of the open inlet equipment, so as to ensure the acquisition of key physical quantities such as assembly parameters of the assembly joint part, and to control and improve the assembly quality and performance of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 is an axonometric view of the detection auxiliary device in the expanded state of the application;

[0019] Fig. 2 is a perspective view of the detection auxiliary device in the expanded state of the application;

[0020] Fig. 3 is a front view of the detection auxiliary device in the expanded state of the application;

[0021] Fig. 4 is an axonometric view of the detection auxiliary device in the contracted state of the application;

[0022] Fig. 5 is a front view of the detection auxiliary device in the contracted state of the application;

[0023] Fig. 6 is an application schematic diagram of the detection auxiliary device of the application;

[0024] Fig. 7 is an application schematic diagram of the detection auxiliary device of the application.

[0025] In the figure: 1-upper probe, 2-upper probe protection shell, 3-upper probe limiting rod, 4-linear bearing a, 5-spring a, 6-nut a, 7-lower probe, 8-lower probe protection shell, 9-lower probe limiting rod, 10-linear bearing b, 11-spring b, 12-nut b, 13-upper probe third-stage arm, 14-deep groove ball bearing a, 15-upper probe second-stage rotary shaft, 16-upper probe second-stage arm, 17-deep groove ball bearing b, 18-upper probe first-stage rotary shaft, 19-upper probe first-stage arm, 20-lower probe third-stage arm, 21-deep groove ball bearing c, 22-lower probe second-stage rotary shaft, 23-lower probe second-stage arm, 24-deep groove ball bearing d, 25-lower probe first-stage rotary shaft, 26-lower probe first-stage arm, 27-sliding block a, 28-guide rail a, 29-upper guide rail support, 30-sliding block b, 31-guide rail b, 32-lower guide rail support, 33-main rotary shaft, 34-upper bearing outer ring outer disc, 35-upper bearing outer ring inner disc, 36-upper bearing inner ring outer disc, 37-upper bearing inner ring inner disc, 38-upper bearing, 39-lower bearing outer ring inner disc, 40-lower bearing outer ring outer disc, 41-lower bearing, 42-lower bearing inner ring inner disc, 43-lower bearing inner ring outer disc, 44-linear bearing c, 45-upper pressing block, 46-claw, 47-lower pressing block, 48-rotary shaft, 49-torsion spring, 50-nut c, 51-deep groove ball bearing d, 52-upper claw rotary shaft, 53-shaft sleeve a, 54-shaft sleeve b, 55-deep groove ball bearing e, 56-lower claw rotary shaft, 57-upper connecting rod, 58-lower connecting rod, 59-deep groove ball bearing f, 60-upper rotary base, 61-upper connecting rod rotary shaft, 62-shaft sleeve c, 63-lower rotary base, 64-deep groove ball bearing g, 65-lower connecting rod rotary shaft, 66-shaft sleeve d. Embodiments of the present application

[0026] The present application will be further described with reference to the specific embodiments and drawings, and more details are set forth in the following description in order to fully understand the present application, but the present application can be implemented in many different ways other than the description, and those skilled in the art can make similar generalizations and deductions according to the actual application without departing from the spirit of the present application, so the protection scope of the present application should not be limited by the specific embodiments.

[0027] The application provides a detection auxiliary device applied to open inlet equipment inner cavity detection, which is functionally divided into: support components, including rotating base, guide rail support, bearing inner and outer disc, etc., which functionally support and connect other components. The rotating base is the fixed position of the rotating shaft of the rotating mechanism, and through the rotating base, the rotating rod can be connected with other connected components to realize corresponding functions. The guide rail support is a connecting component of the fixed guide rail and other components, and through the guide rail support, the guide rail can be connected with other components and form a certain relative angle to complete the function required by the installation direction displacement of the guide rail. The bearing inner and outer disc is used to connect the inner ring and the outer ring of the bearing respectively, expand the inner ring and the outer ring of the bearing into a working surface on which other components can be installed, and ensure that the installation surfaces of the connected inner ring and outer ring can rotate relative to the circumferential direction while remaining stable through the function of the bearing.

[0028] Rotating components, including rotating shafts, connecting rods, etc., functionally connect other components that produce relative motion while ensuring and restricting the motion of the connected components, so that the motion is restricted to a fixed track. The rotating rod is used to connect the upper and lower rotating discs, i.e., the rotating discs fixed to the upper and lower bearings respectively, to ensure that the rotating axes of the upper and lower rotating discs coincide. At the same time, the rotating shaft is also used to ensure the movement direction when the upper and lower rotating discs produce relative circumferential displacement, i.e., as a cylindrical guide rail, to ensure the stability of the relative motion of the two rotating discs when they move closer to and away from each other. The connecting rod is used to connect two components that produce relative displacement deformation, i.e., the connecting rod connects the clamping and rotating discs, and under the displacement drive, the connecting rod rotates to restrict the motion and deformation of the two components along the designed track. The rotating disc is used as a connecting component of the inner and outer rings of the bearing, and through the bearing, the installation working surface connected to the inner and outer rings is ensured to rotate relatively stably.

[0029] Fixed deformation components, including connecting rods, clamps, pressing blocks, etc., are functionally used to deform the structure of the device, change the radial size of part of the structure, and realize the installation and separation of the connected components. The connecting rod connects different components, and the connecting rod rotates around the rotating shaft when other components move, realizes the motion between different connected components, and deforms the overall device. The clamp and the pressing block cooperate to realize the separation and contact between the device and the connected components after the radial size of the device changes, and realize the installation and disassembly function between the detection auxiliary device and the connected components.

[0030] Telescopic components, including multi-stage rods, etc. Functionally realize the folding and unfolding of the probe placement arm. The multi-stage rod rotates around the rod group rotating shaft to realize the extension and folding of the multi-stage rod.

[0031] Moving components, including sliders, guide rails, etc. Functionally realize the movement of the connected components along the guide rail direction. The slider is combined with the guide rail, and the slider is connected with other components to realize the stable movement of the connected components along the guide rail direction.

[0032] The buffer component includes a protective shell, a spring, etc. Functionally, the buffer component protects and limits the movement direction of the probe, and the probe is placed inside the buffer component. When the detection auxiliary device is working, the buffer component protects the probe from being subjected to excessive compression force, thereby avoiding damage to the probe.

[0033] The overall structure of an example of the detection auxiliary device is shown in FIG. 1. The detection auxiliary device can be applied to open inlet equipment inner cavity assembly site detection. The detection auxiliary device can complete different detection functions by carrying different test probes. The functions of the detection auxiliary device include self-size transformation and connection with the equipment to be detected, probe placement and lifting, rotation indexing, probe compression, and the like.

[0034] The ultrasonic test detection operation of the threaded connection structure in the inner cavity of the equipment to be detected will be taken as an example to describe the specific implementation method. The test process needs to carry two test probes that need to be placed on the upper surface and the lower surface of the tested part to work cooperatively. The test work needs to ensure that the test probe is in contact with the surface of the tested part of the measured object, and a certain compression force is applied to ensure close contact. The test work also needs to ensure that the test probe is vertically in contact with the surface of the tested part of the measured object, and the two test probes placed on the upper surface and the lower surface of the tested part need to be in the same axial position, that is, the two probes are in the same straight line in the vertical direction.

[0035] The detection auxiliary device applied to open inlet equipment inner cavity detection described in the present application includes the following components:

[0036] The detection auxiliary device described in the present application is assembled from the above-described components. The functions and movements of different components in the overall device will be described in detail below.

[0037] FIG. 1 is an expanded state axonometric view of the detection auxiliary device of the present application, and FIG. 2 is an expanded state perspective view of the detection auxiliary device of the present application.

[0038] Referring to Fig. 1 and Fig. 2, the buffer component of the detection auxiliary device comprises: an upper probe 1, an upper probe protection shell 2, an upper probe limiting rod 3, a linear bearing a 4, a spring a 5, a nut a 6, a lower probe 7, a lower probe protection shell 8, a lower probe limiting rod 9, a linear bearing b 10, a spring b 11, and a nut b 12. The probe is installed on the buffer component and is protected by the buffer component. The upper and lower buffer components are placed symmetrically in mirror image. When the detection auxiliary device is working, the movement of the probe arm causes the upper and lower buffer components to move towards each other. The upper probe 1 and the lower probe 7 respectively contact the surface to be measured of the measured object and continue to be pressed by the movement of the buffer component, so that the probe closely adheres to the surface to be measured. At the same time, due to the continuous movement of the buffer component, the spring a 5 and the spring b 11 are compressed. By keeping the compression amount of the spring constant, the pressure between the probe and the surface to be measured is kept stable. At the same time, the probe is protected by the upper probe protection shell 2 and the lower probe protection shell 8 wrapped around the probe to avoid collision and damage. When the buffer component is working, the upper probe limiting rod 3 and the lower probe limiting rod 9 respectively limit the movement in the linear bearing a 4 and the linear bearing b 10, ensuring that the probe moves in the set direction during movement, and ensuring that the probe vertically contacts the interface to be measured.

[0039] Referring to Fig. 1 and Fig. 2, the support component of the detection auxiliary device comprises: an upper guide rail support 29, a lower guide rail support 32, an upper rotating base 60, and a lower rotating base 63. It is mainly used as a connecting piece between other moving components. The upper guide rail support 29 and the lower guide rail support 32 connect the moving components and the rotating components. The upper rotating base 60 and the lower rotating base 63 connect the rotating components and the fixed deformation components.

[0040] Referring to FIG. 1 and FIG. 2, the rotating part of the detection auxiliary device comprises: a main rotating shaft 33, an upper bearing outer ring outer disc 34, an upper bearing outer ring inner disc 35, an upper bearing inner ring outer disc 36, an upper bearing inner ring inner disc 37, an upper bearing 38, a lower bearing outer ring inner disc 39, a lower bearing outer ring outer disc 40, a lower bearing 41, a lower bearing inner ring inner disc 42, a lower bearing inner ring outer disc 43, a linear bearing c 44, an upper connecting rod 57, and a lower connecting rod 58. The upper bearing outer ring outer disc 34, the upper bearing outer ring inner disc 35, the upper bearing inner ring outer disc 36, the upper bearing inner ring inner disc 37, and the upper bearing 38 form an upper rotating disc. The lower bearing outer ring inner disc 39, the lower bearing outer ring outer disc 40, the lower bearing 41, the lower bearing inner ring inner disc 42, the lower bearing inner ring outer disc 43, and the linear bearing c 44 form a lower rotating disc. Taking the lower rotating disc as an example, the lower bearing inner ring inner disc 42 and the lower bearing inner ring outer disc 43 are connected with the bearing inner ring of the lower bearing 41, and the lower bearing outer ring inner disc 39 and the lower bearing outer ring outer disc 40 are connected with the bearing outer ring, thereby forming inner and outer rotating installation surfaces connected with the bearing inner and outer rings, respectively, so that other components can be indirectly connected with the bearing inner and outer rings, thereby enabling the other connected components to rotate relative to the bearing. The linear bearing c 44 is connected with the lower bearing outer ring inner disc 39 and is installed on the inner installation surface of the bearing inner ring, and can rotate and move relative to the main rotating shaft 33. The upper bearing outer ring inner disc 35 is fixedly connected with the main rotating shaft 33. The relative rotation between the upper and lower rotating discs and the movement in the direction of the relative rotation axis of the main rotating shaft 33 can be realized, thereby realizing the rotation and movement functions between other components connected with the outer rings of the rotating discs. The upper connecting rod 57 and the lower connecting rod 58 are connected with the outer rotating installation surfaces of the rotating part and the fixed deformation component through the upper rotating base 60 and the lower rotating base 63.

[0041] Referring to FIG. 1 and FIG. 2, the fixed deformation component of the detection auxiliary device comprises: an upper pressing block 45, a clamping 46, a lower pressing block 47, a rotating shaft 48, a torsion spring 49, a nut c 50, a deep groove ball bearing d 51, an upper clamping rotating shaft 52, a shaft sleeve a 53, a shaft sleeve b 54, a deep groove ball bearing e 55, a lower clamping rotating shaft 56, an upper connecting rod 57, and a lower connecting rod 58. The outer rotating installation surface of the rotating component is connected with the fixed deformation component through the upper rotating base 60 and the lower rotating base 63. When the upper and lower rotating discs of the rotating component move close to each other, that is, when the detection auxiliary device changes from the contracted state to the expanded state, the upper and lower connecting rods 57 and 58 are driven to rotate around the upper and lower connecting rod rotating shafts 61 and 65, respectively, and the rotating action is supported by the deep groove ball bearings f 59 and g 64. The upper rotating connecting rod component composed of the upper connecting rod 57, the upper connecting rod rotating shaft 61, the shaft sleeve 62, and the shaft sleeve 53 is distributed in mirror image symmetry with the lower connecting rod component, and is evenly distributed in three groups in the circumferential direction. The clamping 46 at the other end of the rotating connecting rod moves in the radial direction and contacts the connectable part of the equipment to be measured and is subjected to the installation clamping force in the radial direction. The upper and lower pressing blocks 45 and 47 connected by the clamping 46 are in contact with the upper and lower surfaces of the connectable part of the equipment to be measured under the action of the torque applied by the torsion spring 49, thereby completing the installation and deformation functions of the detection auxiliary device.

[0042] Referring to FIG. 1 and FIG. 2, the telescopic component of the detection auxiliary device comprises: an upper probe three-stage arm 13, a deep groove ball bearing a 14, an upper two-stage three-stage rotating shaft 15, an upper probe two-stage arm 16, a deep groove ball bearing b 17, an upper one-stage two-stage rotating shaft 18, an upper probe one-stage arm 19, a lower probe three-stage arm 20, a deep groove ball bearing c 21, a lower two-stage three-stage rotating shaft 22, a lower probe two-stage arm 23, a deep groove ball bearing d 24, a lower one-stage two-stage rotating shaft 25, and a lower probe one-stage arm 26. The telescopic component is divided into upper and lower probe arms and is placed in mirror image symmetry. One end of the probe arm is connected with the sliding block of the moving component, and the axial movement of the main rotating shaft of the probe arm is realized through the moving component. Taking the upper probe arm as an example, the probe arm is a three-stage rotating rod group structure composed of the upper probe three-stage arm 13, the deep groove ball bearing a 14, the upper two-stage three-stage rotating shaft 15, the upper probe two-stage arm 16, the deep groove ball bearing b 17, the upper one-stage two-stage rotating shaft 18, and the upper probe one-stage arm 19. In the expanded state, the three rod groups are rotated to the same straight line direction. Referring to FIG. 4 and FIG. 5, in the contracted state, the three rod groups are rotated to the folded state. The end of the probe arm, the upper probe three-stage arm 13, is connected with the buffer component, and the placement of the probe in the buffer component to the measurement part of the equipment to be measured is realized through the folded probe arm of the telescopic component.

[0043] Referring to FIG. 1 and FIG. 2, the moving part of the detection auxiliary device comprises a sliding block a 27, a guide rail a 28, an upper guide rail support 29, a sliding block b 30, a guide rail b 31, and a lower guide rail support 32. The moving part and the rotating part are connected through the upper guide rail support 29 and the lower guide rail support 32. Through the relative movement of the sliding block and the guide rail, the mutual movement between the probe arm and the rotating disc connected to the sliding block and the guide rail is realized, so that the movement of the buffer part installed at the end of the probe arm is realized, and finally the contact and separation action between the probe and the measured part is realized.

[0044] The above describes the movement and deformation function of the detection auxiliary device from the retracted state to the expanded state. Through the mutual approach action of the upper and lower rotating discs in the rotating part along the main rotating shaft, the rotating link connected to the outer ring mounting surface of the rotating disc is driven to rotate. Thus, the contact and clamping action of the clamping part in the fixed deformation part with the installable connection part between the upper and lower pressing blocks connected by the clamping part and the measured part is realized. The multi-stage probe arm in the telescopic part is rotated and expanded from the folded state, and the multi-stage link is rotated to the same straight line direction, realizing the placement and movement function of the buffer part connected to the end of the multi-stage probe arm in the telescopic part to the measured position of the measured part. After the deformation and expansion action and the installation action are completed, the detection auxiliary device realizes the movement action of the main rotating shaft of the telescopic part and the buffer part in the axial direction through the moving part. Through the rotating function of the rotating disc of the rotating part, the rotating action of the moving part, the telescopic part and the buffer part and other parts connected to the rotating disc is realized. Through the above actions, the connection between the detection auxiliary device and the measured equipment and the loading probe can realize the sequential detection function of the multiple measurement points in the detection position of the internal cavity of the measured equipment.

[0045] The detection auxiliary device provides a test device for key physical parameters in the assembly process of an open inlet equipment and an internal space equipped with a joint surface. The device can reach detection positions that are difficult to reach by traditional methods, greatly reducing the working intensity of the operator, and the operator no longer needs to repeatedly install the probe at different measurement points arranged in a circle. Only the measured equipment and the detection auxiliary device need to be connected, and the detection auxiliary device can help complete the measurement of key physical parameters at different measurement positions on the internal space assembly joint surface of the measured equipment.

Claims

1. A detection auxiliary device for detecting the internal cavity of open-entry equipment, characterized in that, The detection auxiliary device comprises a supporting component, a rotating component, a fixed deformation component, an extension component, a moving component and a buffer component; The supporting component comprises a guide rail support and a rotating base; the guide rail support is connected with the moving component and the rotating component; the rotating base is connected with the rotating component and the fixed deformation component; The moving component comprises a sliding block and a guide rail; the guide rail is fixed on the guide rail support; the sliding block moves on the guide rail and is connected with one end of the extension component; the other end of the extension component is connected with the buffer component; The rotating component comprises a main rotating shaft (33), a connecting rod and a rotating disc; the rotating disc is divided into an upper rotating disc and a lower rotating disc; the upper rotating disc is fixedly connected with the main rotating shaft (33); the lower rotating disc rotates and moves relative to the main rotating shaft (33); the rotating base is fixed on the rotating disc and is connected with the fixed deformation component through the connecting rod.

2. The detection aid for use in open access equipment lumen detection of claim 1, wherein, The upper rotating disc comprises an upper bearing outer ring outer disc (34), an upper bearing outer ring inner disc (35), an upper bearing inner ring outer disc (36), an upper bearing inner ring inner disc (37) and an upper bearing (38); the upper bearing inner ring outer disc (36) and the upper bearing inner ring inner disc (37) are connected with the bearing inner ring of the upper bearing (38); the upper bearing outer ring outer disc (34) and the upper bearing outer ring inner disc (35) are connected with the bearing outer ring of the upper bearing (38) and form inner and outer rotating installation surfaces connected with the inner and outer rings of the upper bearing (38) respectively; the upper bearing outer ring inner disc (35) is fixedly connected with the rotating base; the upper bearing inner ring outer disc (36) is connected with the upper guide rail support (29).

3. The detection aid for use in open access equipment lumen detection of claim 1, wherein, The lower rotating disc comprises a lower bearing outer ring inner disc (39), a lower bearing outer ring outer disc (40), a lower bearing (41), a lower bearing inner ring inner disc (42), a lower bearing inner ring outer disc (43) and a linear bearing (44); the lower bearing inner ring inner disc (42) and the lower bearing inner ring outer disc (43) are connected with the bearing inner ring of the lower bearing (41); the lower bearing outer ring inner disc (39) and the lower bearing outer ring outer disc (40) are connected with the bearing outer ring of the lower bearing (41) and form inner and outer rotating installation surfaces connected with the inner and outer rings of the lower bearing (41) respectively; the linear bearing (44) is connected with the lower bearing outer ring inner disc (39) and is installed on the inner installation surface of the bearing inner ring and realizes relative rotation and movement with the main rotating shaft (33); the lower bearing outer ring inner disc (39) is fixedly connected with the rotating base; the lower bearing inner ring outer disc (43) is connected with the guide rail support; the relative rotation between the upper rotating disc and the lower rotating disc and the movement in the axial direction of the main rotating shaft (33) are realized through the main rotating shaft (33).

4. The detection aid for open access equipment lumen detection of claim 1, 2 or 3, wherein, The fixed deformation component comprises a pressing block, a clamping claw (46), a rotating shaft (48) and a torsion spring; the connecting rod is connected with the clamping claw (46) through a clamping claw shaft; the two ends of the clamping claw (46) are connected with the pressing block through the rotating shaft (48); the torsion spring (49) is installed on the rotating shaft (48) and is used for providing a torque to the pressing block.

5. The detection aid for use in open access equipment lumen detection of claim 4, wherein, The telescopic part is divided into upper and lower probe arms and is placed in mirror symmetry; the probe arm is a three-stage rotary rod group structure, and each stage of the rod group is connected through a rotary shaft and a deep groove ball bearing; in the unfolded state, the three rod groups are rotated to the same linear direction; in the folded state, the three rod groups are rotated to the folded state; a buffer part is connected to the end of the probe arm, and the placement action of the probe in the buffer part to the to-be-measured part of the measured equipment is realized through the folding of the probe arm.

6. The detection aid for use in open access equipment lumen detection of claim 5, wherein, The buffer part comprises a probe, a limiting rod, a linear bearing and a spring; the probe is divided into an upper probe (1) and a lower probe (7) and is respectively in contact with the to-be-measured surface of the measured part; the upper probe (1) and the lower probe (7) are respectively installed on a probe protection shell; the end of the probe arm is connected to one end of the limiting rod, and the other end of the limiting rod is in the probe protection shell and is limited to move on the linear bearing; a spring is sleeved on the limiting rod between the end of the probe arm and the probe protection shell; when working, the movement of the probe arm makes the upper and lower buffer parts move towards each other, the upper probe (1) and the lower probe (7) are in contact with the to-be-measured surface, and the pressure applied by the movement of the buffer part is continuously applied to the upper probe (1) and the lower probe (7), so that the probe is tightly attached to the to-be-measured surface; at the same time, due to the continuous movement of the buffer part, the spring is compressed, the compression amount of the spring is kept constant, and the pressure between the probe and the to-be-measured surface is kept stable.

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