CN112985317A - Detection device and method - Google Patents
Detection device and method Download PDFInfo
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- CN112985317A CN112985317A CN201911299259.XA CN201911299259A CN112985317A CN 112985317 A CN112985317 A CN 112985317A CN 201911299259 A CN201911299259 A CN 201911299259A CN 112985317 A CN112985317 A CN 112985317A
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- measuring head
- gauge
- supporting cylinder
- measuring
- connecting pin
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/003—Measuring of motor parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention provides a detection device, which is suitable for measuring the position of a part in a deep cavity, and comprises: a support cylinder; the measuring head is arranged at the first end of the supporting cylinder and is suitable for being attached to the end face to be measured of the part; and the gauge stand is arranged at the second end of the supporting cylinder and is suitable for placing a measuring gauge, the measuring gauge is provided with a gauge head, and when the supporting cylinder extends into the deep cavity to enable the measuring gauge to be attached to the end face to be measured of the part, the measuring gauge is suitable for measuring the distance between the gauge head and the aligned end face of the deep cavity.
Description
Technical Field
The invention mainly relates to the field of aircraft engines, in particular to a detection device and a detection method.
Background
In the field of aircraft engines, ventilation ducts are often used to remove exhaust gases from the low pressure shaft cavities of the engine. FIG. 1 is a schematic view of a turboshaft inner carrier assembly. Referring to FIG. 1, a vent tube 30 is secured within a turbine shaft 10 by a mount assembly 20. FIG. 2 is an enlarged view of a portion of a turboshaft inner carrier assembly. Referring to fig. 1 and 2, the bracket assembly 20 includes a fixing base 21, a bracket 22, and a compression nut 23. The bracket 22 is fixed on the tapered surface of the fixing base 21 by a compression nut 23. The bracket 22 is of an open design and has a certain elasticity. With the increase of the moment of the compression nut 23, the bracket 22 is pressed by the tapered surface of the fixed seat 21 to be elastically deformed, and the diameter of the bracket is increased and is adsorbed on the inner wall of the turbine shaft 10. The mounting position of the mount assembly 20 in the turbine shaft 10 is clearly defined, and the axial distance between the right end surface S1 of the mount 22 and the left end surface S2 of the turbine shaft 10 is L. The shaft cavity of the turbine shaft 10 is deep, typically greater than 1000 mm. Thus, after the carriage assembly 20 is installed, its quality of assembly (e.g., the position of the carriage 22) cannot be checked by conventional means.
Disclosure of Invention
The invention aims to provide a detection device which can realize the measurement of the position of a part in a deep cavity, is convenient to operate and has lower cost.
In order to solve the above technical problem, the present invention provides a detection device, which is suitable for measuring the position of a part in a deep cavity, and the detection device comprises: a support cylinder; the measuring head is arranged at the first end of the supporting cylinder and is suitable for being attached to the end face to be measured of the part; and the gauge stand is arranged at the second end of the supporting cylinder and is suitable for placing a measuring gauge, the measuring gauge is provided with a gauge head, and when the supporting cylinder extends into the deep cavity to enable the measuring head to be attached to the end face to be measured of the part, the measuring gauge is suitable for measuring the distance between the gauge head and the alignment end face of the deep cavity.
In an embodiment of the present invention, the measuring head further includes a rod body disposed in the supporting cylinder and adapted to move along an axial direction of the supporting cylinder, wherein the measuring head is connected to the supporting cylinder by a first connecting pin and connected to a first end of the rod body by a second connecting pin, and the measuring head is adapted to rotate around the first connecting pin.
In an embodiment of the present invention, the measuring head has a limiting groove, the first end of the supporting cylinder is provided with a third connecting pin, and the limiting groove is adapted to limit an angle of rotation of the measuring head around the first connecting pin through the third connecting pin.
In an embodiment of the invention, a first engaging groove and a second engaging groove are formed on the rod, wherein when the rod is controlled to move to the first engaging groove to align with the left end surface of the frame, one end of the limiting groove contacts with the third connecting pin, and the measuring head is in a retracted state; when the rod body is controlled to move to the second clamping groove and the left end face of the meter frame is aligned, the other end of the limiting groove is in contact with the third connecting pin, and the measuring head is in an extending state.
In an embodiment of the present invention, a handle is disposed at the second end of the rod, and the handle is adapted to control the rod to move along the axial direction of the support cylinder.
In an embodiment of the invention, a hook ring is further disposed at the second end of the support cylinder, and the hook ring is adapted to control a moving state of the rod body.
In an embodiment of the present invention, the present invention further includes a positioning seat disposed on the supporting cylinder, and the positioning seat is adapted to be connected to the aligning end face.
In an embodiment of the present invention, the method further includes: the baffle ring is fixed on the support cylinder; and the spring is arranged between the supporting cylinder and the positioning seat, and two ends of the spring are respectively contacted with the baffle ring and the positioning seat.
In an embodiment of the present invention, the measuring head has a notch, and the measuring head is attached to the end surface to be measured of the part through the notch.
Another aspect of the present invention provides a detection method using the detection apparatus according to claim 1, the detection method comprising the steps of: a. adjusting a gauge outfit of a measuring gauge to enable the distance between the gauge outfit and a measuring head to be a standard length L, and resetting the measuring gauge; b. placing at least a portion of the support canister within the deep cavity; c. moving the supporting cylinder along the axial direction of the supporting cylinder to enable the measuring head to be attached to the end face to be measured of the part; d. adjusting the gauge outfit to align the gauge outfit with the aligned end face of the deep cavity, and recording the reading R of the measuring gauge; e. calculating the distance L 'between the end surface to be measured and the alignment end surface, wherein L' ═ L + R; f. and d, rotating the supporting cylinder by an angle X along the central shaft of the supporting cylinder, and repeating the steps d to e, wherein X is more than or equal to 0 degrees and less than or equal to 360 degrees.
In an embodiment of the present invention, the detecting device further includes a rod disposed in the supporting cylinder and adapted to move along an axial direction of the supporting cylinder, wherein the measuring head is connected to the supporting cylinder by a first connecting pin and connected to a first end of the rod by a second connecting pin, and the measuring head is adapted to rotate around the first connecting pin; the measuring head is provided with a limiting groove, the first end of the supporting cylinder is provided with a third connecting pin, and the limiting groove is suitable for limiting the rotation angle of the measuring head around the first connecting pin through the third connecting pin; a first clamping groove and a second clamping groove are formed in the rod body, when the rod body is controlled to move to the first clamping groove to be aligned with the left end face of the meter frame, one end of the limiting groove is in contact with the third connecting pin, and the measuring head is in a contraction state; when the rod body is controlled to move to the second clamping groove to be aligned with the left end face of the meter frame, the other end of the limiting groove is in contact with the third connecting pin, and the measuring head is in an extending state; wherein, step a also includes before: and controlling the rod body to move to the second clamping groove to be aligned with the left end face of the meter frame, so that the measuring head is in an extending state.
In an embodiment of the present invention, after step a, before step b, further includes: and controlling the rod body to move to the first clamping groove to be aligned with the left end face of the meter frame, so that the measuring head is in a contraction state.
In an embodiment of the present invention, the detecting device further includes a positioning seat disposed on the supporting cylinder, and the positioning seat is adapted to be connected to the aligning end face; wherein, after step b, before step c, further comprising: and connecting the positioning seat with the aligning end face, and controlling the rod body to move to the second clamping groove to align with the left end face of the meter frame, so that the measuring head is in an extending state.
Compared with the prior art, the invention has the following advantages: the detection device disclosed by the invention is attached to the end face to be detected of the part through the measuring head arranged at the first end of the supporting cylinder, and the distance between the measuring head and the aligned end face of the deep cavity is measured by using the measuring meter on the meter frame, so that the position of the part in the deep cavity can be measured, the operation is convenient, and the cost is low.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the principle of the invention. In the drawings:
FIG. 1 is a schematic illustration of an inner support assembly for a turbine shaft;
FIG. 2 is an enlarged fragmentary view of an inner carrier assembly for a turbine shaft;
FIG. 3 is a schematic structural diagram of a detecting device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a sensing device for measuring the position of a part within a turbine shaft according to an embodiment of the present invention;
FIG. 5 is a flow chart of a detection method according to an embodiment of the invention;
fig. 6 to 8 are schematic diagrams of a stepwise implementation of a detection method according to an embodiment of the invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. 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, further discussion thereof is not required in subsequent figures.
In describing the embodiments of the present invention in detail, the cross-sectional views illustrating the structure of the device are not enlarged partially in a general scale for convenience of illustration, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the context of this application, a structure described as having a first feature "on" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed in between the first and second features, such that the first and second features may not be in direct contact.
It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Similarly, when a first component is said to be "in electrical contact with" or "electrically coupled to" a second component, there is an electrical path between the first component and the second component that allows current to flow. The electrical path may include capacitors, coupled inductors, and/or other components that allow current to flow even without direct contact between the conductive components.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.
The following embodiments of the present invention provide a detection apparatus, which can realize the measurement of the position of a part in a deep cavity, and is convenient to operate and low in cost.
It is to be understood that the following description is merely exemplary, and that variations may be made by those skilled in the art without departing from the spirit of the invention.
Fig. 3 is a schematic structural diagram of a detection apparatus according to an embodiment of the invention. FIG. 4 is a schematic view of a detecting device for measuring the position of a part within a turbine shaft according to an embodiment of the present invention. The structure of the detection apparatus 100 will be described below with reference to fig. 3 and 4. The sensing device 100 is adapted to measure the position of a part within a deep cavity.
Preferably, in the following embodiments of the present invention, the deep cavity may be the turbine shaft 10 and the part may be the carrier 22 of the carrier assembly 20. The end surface to be measured may be a right end surface S1 of the mount 22, and the aligned end surface may be a left end surface S2 of the turbine shaft 10. The sensing device 100 is adapted to measure the position of the support 22 of the support assembly 20 within the turbine shaft 10, and the application is not limited thereto.
Referring to fig. 3 and 4, the detecting device 100 includes a support cylinder 110, a measuring head 120, and a meter frame 130.
The measuring head 120 is disposed at the first end of the supporting cylinder 110, and the measuring head 120 is suitable for being attached to the end surface S1 to be measured of the component (the bracket 22). In some examples of the present invention, the first end of the support cylinder 110 is further provided with a rectangular slot (not shown), through which at least a portion of the measuring head 120 may protrude out of the support cylinder 110.
The measuring head 120 may have a fan shape, a triangular shape, and other possible shapes, and those skilled in the art can make corresponding adjustments according to actual needs, and the invention is not limited to the specific form. Preferably, in the following embodiments of the present invention, the measuring head 120 has a fan shape.
A meter stand 130 is provided at the second end of the support cylinder 110, the meter stand 130 being adapted to receive a meter 140. The measuring gauge 140 has a gauge head 141, and the measuring gauge 140 is adapted to measure the distance between the gauge head 140 and the aligned end surface S2 of the deep cavity (turbine shaft 10) when the supporting cylinder 110 is inserted into the deep cavity so that the measuring head 120 is engaged with the end surface S1 to be measured of the part (mount 22). Illustratively, the gauge 140 may be a dial gauge or a dial gauge.
In some examples, the bezel 130 may be secured to the support cylinder 110 by pins (not shown). The measuring gauge 140 may be fixed on the gauge stand 130 by a knurled screw (not shown), but the embodiment is not limited thereto.
Referring to fig. 4, in an embodiment of the invention, the detecting device 100 further includes a rod 150. The rod 150 is disposed in the support cylinder 110 and is adapted to move along the axial direction of the support cylinder 110. Wherein the measuring head 120 is connected to the supporting cylinder 110 by a first connecting pin 101 and to the first end of the rod body 150 by a second connecting pin 102, and the measuring head 120 is adapted to rotate around the first connecting pin 101.
Referring to fig. 3 and 4, when the measuring head 120 is rotated at a certain angle about the first connecting pin 101, at least a portion of the measuring head 120 may protrude out of the support cylinder 110 through a rectangular slot provided at the first end of the support cylinder 110.
In an embodiment of the present invention, the measuring head 120 has a limiting groove 121, and the first end of the supporting cylinder 110 is provided with a third connecting pin 103. The spacing groove 121 is adapted to limit the angle of rotation of the measuring head 120 about the first connecting pin 101 by the third connecting pin 103.
The shape of the limiting groove 121 may be an arc shape or other possible shapes, and those skilled in the art can make corresponding adjustments according to actual needs, and the invention is not limited to the specific form thereof. Preferably, in the following embodiments of the present invention, the shape of the spacing groove 121 is an arc shape.
Referring to fig. 4, in an embodiment of the present invention, a first engaging groove 151 and a second engaging groove 152 are disposed on the rod 150. When the control rod 150 moves to the first engaging groove 151 and aligns with the left end surface of the meter frame 130, one end of the limiting groove 121 contacts the third connecting pin 103, and the measuring head 120 is in a retracted state. When the control rod 150 moves to the second engaging groove 152 and aligns with the left end surface of the meter frame 130, the other end of the limiting groove 121 contacts the third connecting pin 103, and the measuring head 120 is in an extended state (e.g., the state shown in fig. 4).
Thus, the first locking groove 151 and the second locking groove 152 on the rod body 150 can switch the measuring head 120 between the retracted state and the extended state, thereby solving the problem that the position (rotation angle) of the measuring head 120 in the deep cavity (turbine shaft 10) cannot be observed, and avoiding the damage of the measuring head 120 caused by misoperation.
In some examples, a second end of wand body 150 is provided with a handle 153. The handle 153 is adapted to control the axial movement of the stick body 150 along the support cylinder 110. Illustratively, handle 153 may be secured to the second end of shaft 150 by a nut (not shown).
In an embodiment of the present invention, the second end of the supporting cylinder 110 is further provided with a hook ring 111. The hook ring 111 is adapted to control the movement state of the stick body 150 (within the support cylinder 110). Illustratively, the hook ring 111 can be switched between the open state and the closed state by rotating the hook ring 111. When the hook ring 111 is rotated to the open state, the rod 150 can move in the axial direction of the support cylinder 110 in the support cylinder 110. When the hook ring 111 is rotated to the closed state, the rod body 150 cannot move in the axial direction of the support cylinder 110 within the support cylinder 110.
Thus, the axial position of the rod body 150 in the support cylinder 110 can be locked by rotating the hook ring 111, and the axial distance between the rod body 150 and the support cylinder 110 can be kept stable.
Preferably, in the following embodiments of the present invention, the hook ring 111 may be fixed to the left end surface of the watch frame 130 by a bolt (not shown).
Referring to fig. 3 and 4, in an embodiment of the invention, the detecting device 100 further includes a positioning seat 160. The positioning seat 160 is disposed on the supporting cylinder 110, and the positioning seat 160 is adapted to be connected to the aligned end surface S2. Preferably, the positioning seat 160 is disposed on the supporting cylinder 110 and the supporting cylinder 110 can move along the axial direction of the positioning seat 160.
In some examples, the positioning seat 160 is further provided with a positioning hole 161. The positioning socket 160 can be fixed to the aligned end surface S2 of the deep cavity (turbine shaft 10) by the positioning hole 161 using a screw (not shown).
The supporting cylinder 110 is in small clearance fit with the inner hole of the fixed seat 21 of the bracket assembly 20 through a first end, and the supporting cylinder 110 is in small clearance fit with the central hole of the positioning seat 160 through a second end. With such a double support structure, the support cylinder 110 can be kept well coaxial with the deep cavity (turbine shaft 10) so that the central axis of the support cylinder 110 coincides with the central axis of the deep cavity (turbine shaft 10), thereby reducing measurement errors.
Referring to FIG. 4, in some embodiments of the present invention, the detection device 100 further comprises a stop ring 170 and a spring 180. The retainer ring 170 is fixed to the support cylinder 110. The spring 180 is disposed between the supporting cylinder 110 and the positioning seat 160, and both ends of the spring 180 respectively contact the stop ring 170 and the positioning seat 160.
When the positioning socket 160 is fixed on the aligned end surface S2 of the deep cavity (turbine shaft 10), the spring 180 is compressed or stretched because the support cylinder 110 can move in the axial direction of the positioning socket 160.
Referring to FIG. 4, in one embodiment of the present invention, the measuring head 120 has a notch 122. The measuring head 120 is attached to the end surface S1 to be measured of the part (the holder 22) through the notch 122. Preferably, the measuring head 120 can be attached to the end surface S1 to be measured of the component (holder 22) by the end of the notch 122.
Referring to fig. 4, when the measuring head 120 is attached to the end surface S1 to be measured of the component (the bracket 22), the spring 180 in the compressed state provides a pushing force to the left along the axial direction of the supporting cylinder 110 to the supporting cylinder 110, so that the measuring head 120 is always attached to the end surface S1 to be measured of the component (the bracket 22) during the process of measuring the position of the component (the bracket 22).
Referring to fig. 2 and 4, the circumferential diameter of the end surface S1 to be measured of the part (bracket 22) distributed in the deep cavity (turbine shaft 10) is larger than the bore diameter of the inner bore of the fixed seat 21. The measuring head 120 is rotated about the first connecting pin 101 by moving the control lever 150 to align the second locking groove 152 with the left end surface of the bezel 130, and protrudes from the rectangular slot provided at the first end of the support cylinder 110.
Thus, the measuring head 120 can bypass the fixing seat 21 and attach to the end surface S1 to be measured of the part (the bracket 22) through the end of the notch 122 in the rotation process, so that the problem that the end surface S1 to be measured is not aligned with the right end surface (shown in fig. 2) of the fixing seat 21 is solved, and the interference between the measuring head 120 and the fixing seat 21 is avoided, so that the detection device 100 can be installed from the inner hole of the fixing seat 21 of the bracket assembly 20 to measure the end surface S1 to be measured of the bracket 22 with a larger diameter.
The above embodiment of the present invention provides a detection device, which can realize the measurement of the position of a part in a deep cavity, and has the advantages of convenient operation and low cost. For example, by measuring the position of the support within the turbine shaft, the quality of the assembly of the aircraft engine can be improved.
The invention provides a detection method on the other hand, which can realize the measurement of the position of the part in the deep cavity, and has convenient operation and lower cost.
Fig. 5 is a flow chart of a detection method according to an embodiment of the invention. Fig. 6 to 8 are schematic diagrams of a stepwise implementation of a detection method according to an embodiment of the invention. The detection method will be described below with reference to fig. 1 to 8.
It should be noted that the detection method of the present invention can be implemented by using the detection device 100, but the present application is not limited thereto.
Referring to fig. 5, the detection method includes the steps of:
Referring to fig. 4, in an embodiment of the invention, the detecting device 100 further includes a rod 150. The rod 150 is disposed in the support cylinder 110 and is adapted to move along the axial direction of the support cylinder 110. Wherein the measuring head 120 is connected to the supporting cylinder 110 by a first connecting pin 101 and to the first end of the rod body 150 by a second connecting pin 102, and the measuring head 120 is adapted to rotate around the first connecting pin 101.
In some examples, the measuring head 120 has a limiting groove 121, the first end of the support cylinder 110 has a third connection pin 103, and the limiting groove 121 is adapted to limit an angle of rotation of the measuring head 120 about the first connection pin 101 by the third connection pin 103.
In some examples, a first engaging groove 151 and a second engaging groove 152 are formed on the rod 150. When the control rod 150 moves to the first engaging groove 151 and aligns with the left end surface of the meter frame 130, one end of the limiting groove 121 contacts the third connecting pin 103, and the measuring head 120 is in a retracted state. When the control rod 150 moves to the second engaging groove 152 and aligns with the left end surface of the meter frame 130, the other end of the limiting groove 121 contacts the third connecting pin 103, and the measuring head 120 is in an extended state (e.g., the state shown in fig. 4).
In some examples, a second end of wand body 150 is provided with a handle 153. The handle 153 is adapted to control the axial movement of the stick body 150 along the support cylinder 110. The second end of the support cylinder 110 is further provided with a hook ring 111. The hook 111 is adapted to control the moving state of the stick 150. Illustratively, the hook ring 111 can be switched between the open state and the closed state by rotating the hook ring 111. When the hook ring 111 is rotated to the open state, the rod 150 can move in the axial direction of the support cylinder 110 in the support cylinder 110. When the hook ring 111 is rotated to the closed state, the rod body 150 cannot move in the axial direction of the support cylinder 110 within the support cylinder 110.
Preferably, in the following embodiments of the present invention, the hook ring 111 may be fixed to the left end surface of the watch frame 130 by a bolt (not shown).
Referring to fig. 6, in an embodiment of the present invention, step 510 may further include: the hook ring 111 is rotated to an open state, the lever body 150 is controlled by the handle 153 to move to the second slot 152 to align with the left end surface of the meter frame 130, so that the measuring head 120 is in an extended state, and the hook ring 111 is rotated to a closed state.
The head 141 of the measuring gauge 140 (e.g. a dial gauge) is adjusted so that the distance between the head 141 and the measuring head 120 is the standard length L, and the measuring gauge 140 is cleared.
For example, the standard length L may be calibrated by a standard ruler (not shown), but the application is not limited thereto.
Referring to fig. 7, in an embodiment of the present invention, step 510 further includes: the hook ring 111 is rotated to an open state, and the lever body 150 is controlled by the handle 153 to move to the first slot 151 to align with the left end surface of the meter frame 130, so that the measuring head 120 is in a retracted state. Optionally, after the measuring head 120 is in the retracted state, the hook ring 111 may be further rotated to the closed state.
At step 520, at least a portion of the support cylinder 110 is placed in the deep cavity.
In an embodiment of the invention, the detecting device 100 further includes a positioning seat 160. The positioning seat 160 is disposed on the supporting cylinder 110, and the positioning seat 160 is adapted to be connected to the aligned end surface S2. Preferably, the positioning seat 160 is disposed on the supporting cylinder 110 and the supporting cylinder 110 can move along the axial direction of the positioning seat 160.
In some examples, the positioning seat 160 is further provided with a positioning hole 161. The positioning socket 160 can be fixed to the aligned end surface S2 of the deep cavity (turbine shaft 10) by the positioning hole 161 using a screw (not shown).
Referring to fig. 7, in an embodiment of the present invention, step 520 further includes: the positioning seat 160 is fixed on the alignment end surface S2 by a screw through the positioning hole 161, the hook ring 111 is rotated to an open state, the lever body 150 is controlled by the handle 153 to move to the second engaging groove 152 to align with the left end surface of the meter frame 130, so that the measuring head 120 is in an extended state, and the hook ring 111 is rotated to a closed state.
In step 530, the supporting cylinder 110 is moved along the axial direction of the supporting cylinder 110, so that the measuring head 120 is attached to the end surface S1 to be measured of the component (the bracket 22).
Referring to FIG. 4, in some embodiments of the present invention, the detection device 100 further comprises a stop ring 170 and a spring 180. The retainer ring 170 is fixed to the support cylinder 110. The spring 180 is disposed between the supporting cylinder 110 and the positioning seat 160, and both ends of the spring 180 respectively contact the stop ring 170 and the positioning seat 160.
After the positioning socket 160 is fixed on the aligned end surface S2 of the deep cavity (turbine shaft 10), the supporting cylinder 110 can move along the axial direction of the positioning socket 160, so as to compress or stretch the spring 180.
Preferably, in step 510, the gauge head 141 of the gauge 140 may be adjusted to make the distance between the gauge head 141 and the measuring head 120 be the standard length L when the spring 180 is in the compressed state, and the gauge 140 may be cleared.
Referring to fig. 8, after the measuring head 120 is attached to the end surface S1 to be measured of the component (the bracket 22), the spring 180 in the compressed state provides a pushing force to the left along the axial direction of the supporting cylinder 110 for the supporting cylinder 110, so that the measuring head 120 is always attached to the end surface S1 to be measured of the component (the bracket 22) during the process of measuring the position of the component (the bracket 22).
Referring to fig. 1, 2 and 8, the circumferential diameter of the end surface S1 to be measured of the part (bracket 22) distributed in the deep cavity (turbine shaft 10) is larger than the bore diameter of the inner bore of the fixed seat 21. The measuring head 120 can be rotated about the first connecting pin 101 and protruded from the rectangular slot of the first end of the support cylinder 110 by moving the control lever 150 to the second catching groove 152 aligned with the left end surface of the bezel 130.
Thus, the measuring head 120 can bypass the fixing seat 21 in the rotation process and be attached to the end surface S1 to be measured of the part (the bracket 22) through the end portion of the notch 122, so that the problem that the end surface S1 to be measured is not aligned with the right end surface (shown in fig. 2) of the fixing seat 21 is solved, and the interference between the measuring head 120 and the fixing seat 21 is avoided, so that the detection device 100 can be installed from the inner hole of the fixing seat 21 of the bracket assembly 20 to measure the end surface S1 to be measured of the bracket 22 with a larger diameter.
The gauge head 141 is adjusted 540 to align the gauge head 141 with the deep cavity alignment end face S2 and record the reading R of the gauge 140.
The head 141 of the measuring gauge 140 (e.g., a dial gauge) is adjusted so that the head 141 is aligned with the aligned end surface S2 of the deep cavity (turbine shaft 10), and the reading R of the measuring gauge 140 is recorded.
The distance L' between the end surface S1 to be measured of the part (support 22) and the aligned end surface S2 of the deep cavity (turbine shaft 10) is equal to the sum of the standard length L and the reading R of the measuring gauge 140.
Referring to fig. 3, in some embodiments of the present invention, a trigger lever interface 131 may be further disposed on the watch frame 130. The trigger interface 131 is adapted to couple to a trigger (not shown).
Illustratively, the supporting cylinder 110 may be driven by the plate lever to rotate by an angle X along the central axis of the supporting cylinder 110, the gauge head 141 may be readjusted to align the gauge head 141 with the alignment end surface S2 of the deep cavity, the reading R of the measuring gauge 140 may be recorded, and the distance L 'between the rotated measured end surface S1 and the alignment end surface S2 may be calculated, where L' is L + R.
In some embodiments of the present invention, the distance L' between the end surface S1 to be measured of the part (the bracket 22) and the aligned end surface S2 of the deep cavity (the turbine shaft 10) can also be compared with the drawing specification to determine whether the axial position of the bracket 22 is correctly installed.
Preferably, the distance L' between the end surface S1 to be measured and the aligning end surface S2 is measured after each rotation of an angle X, and the process is repeated until the supporting cylinder 110 rotates through a complete circle.
By calculating a plurality of sets of distance values L' corresponding to different angles in the rotation process of the support cylinder 110, the circumferential runout (Circle run-out) of the end surface S1 to be measured of the part (support 22) relative to the aligned end surface S2 of the deep cavity (turbine shaft 10) can be obtained, thereby judging whether the part (support 22) is installed correctly.
It should be noted that the above embodiments use the flowchart shown in fig. 5 to illustrate the steps/operations performed by the method according to the embodiments of the present application. It will be appreciated that the above steps/operations are not necessarily performed exactly in order, but may be changed in order or processed simultaneously. Meanwhile, other steps/operations may be added to or removed from these steps/operations. The priority of the steps selected for determining the method can be adjusted accordingly by those skilled in the art according to actual needs, and the present invention is not limited thereto.
Other implementation details of the detection method of the present embodiment may refer to the embodiments described in fig. 1 to 4, and are not further expanded herein.
The above embodiment of the present invention provides a detection method, which can realize the measurement of the position of a part in a deep cavity, and has the advantages of convenient operation and low cost.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.
Claims (13)
1. A sensing device adapted to measure the position of a part within a deep cavity, the sensing device comprising:
a support cylinder;
the measuring head is arranged at the first end of the supporting cylinder and is suitable for being attached to the end face to be measured of the part; and
the gauge stand is arranged at the second end of the supporting cylinder, the gauge stand is suitable for placing a measuring gauge, the measuring gauge is provided with a gauge head, and when the supporting cylinder extends into the deep cavity to enable the measuring head to be attached to the end face to be measured of the part, the measuring gauge is suitable for measuring the distance between the gauge head and the alignment end face of the deep cavity.
2. The detecting device according to claim 1, further comprising a rod disposed in the supporting cylinder and adapted to move along an axial direction of the supporting cylinder, wherein the measuring head is connected to the supporting cylinder by a first connecting pin and connected to a first end of the rod by a second connecting pin, and the measuring head is adapted to rotate around the first connecting pin.
3. The detecting device for detecting the rotation of a motor rotor as claimed in claim 2, wherein the measuring head is provided with a limiting groove, the first end of the supporting cylinder is provided with a third connecting pin, and the limiting groove is suitable for limiting the rotation angle of the measuring head around the first connecting pin through the third connecting pin.
4. The detecting device according to claim 3, wherein a first engaging groove and a second engaging groove are formed on the rod, wherein when the rod is controlled to move to the position where the first engaging groove is aligned with the left end surface of the frame, one end of the limiting groove contacts the third connecting pin, and the measuring head is in a retracted state; when the rod body is controlled to move to the second clamping groove and the left end face of the meter frame is aligned, the other end of the limiting groove is in contact with the third connecting pin, and the measuring head is in an extending state.
5. The detecting device for detecting the rotation of a motor rotor as claimed in any one of claims 2 to 4, wherein a handle is arranged at the second end of the rod body, and the handle is suitable for controlling the rod body to move along the axial direction of the supporting cylinder.
6. The detecting device for detecting the rotation of a motor rotor as claimed in any one of claims 2 to 4, wherein a hook ring is further arranged at the second end of the supporting cylinder and is suitable for controlling the moving state of the rod body.
7. The inspection device of claim 1 further comprising a positioning socket disposed on said support sleeve, said positioning socket adapted to engage said alignment end surface.
8. The detection device of claim 7, further comprising:
the baffle ring is fixed on the support cylinder; and
the spring is arranged between the supporting cylinder and the positioning seat, and two ends of the spring are respectively contacted with the baffle ring and the positioning seat.
9. The inspection device of claim 1, wherein the measuring head has a notch therein, and the measuring head is attached to the end surface of the part to be inspected through the notch.
10. A detection method using the detection apparatus according to claim 1, the detection method comprising the steps of:
a. adjusting a gauge outfit of a measuring gauge to enable the distance between the gauge outfit and a measuring head to be a standard length L, and resetting the measuring gauge;
b. placing at least a portion of the support canister within the deep cavity;
c. moving the supporting cylinder along the axial direction of the supporting cylinder to enable the measuring head to be attached to the end face to be measured of the part;
d. adjusting the gauge outfit to align the gauge outfit with the aligned end face of the deep cavity, and recording the reading R of the measuring gauge;
e. calculating the distance L 'between the end surface to be measured and the alignment end surface, wherein L' ═ L + R;
f. and d, rotating the supporting cylinder by an angle X along the central shaft of the supporting cylinder, and repeating the steps d to e, wherein X is more than or equal to 0 degrees and less than or equal to 360 degrees.
11. The inspection method of claim 10, wherein the inspection apparatus further comprises a rod body disposed in the support cylinder and adapted to move in an axial direction of the support cylinder, wherein the measurement head is connected to the support cylinder by a first connection pin and connected to a first end of the rod body by a second connection pin, the measurement head being adapted to rotate about the first connection pin; the measuring head is provided with a limiting groove, the first end of the supporting cylinder is provided with a third connecting pin, and the limiting groove is suitable for limiting the rotation angle of the measuring head around the first connecting pin through the third connecting pin; a first clamping groove and a second clamping groove are formed in the rod body, when the rod body is controlled to move to the first clamping groove to be aligned with the left end face of the meter frame, one end of the limiting groove is in contact with the third connecting pin, and the measuring head is in a contraction state; when the rod body is controlled to move to the second clamping groove to be aligned with the left end face of the meter frame, the other end of the limiting groove is in contact with the third connecting pin, and the measuring head is in an extending state; wherein, step a also includes before: and controlling the rod body to move to the second clamping groove to be aligned with the left end face of the meter frame, so that the measuring head is in an extending state.
12. The detection method of claim 11, wherein after step a, before step b, further comprising: and controlling the rod body to move to the first clamping groove to be aligned with the left end face of the meter frame, so that the measuring head is in a contraction state.
13. The inspection method of claim 12 wherein said inspection apparatus further comprises a positioning socket disposed on said support sleeve, said positioning socket adapted to engage said alignment end surface; wherein, after step b, before step c, further comprising: and connecting the positioning seat with the aligning end face, and controlling the rod body to move to the second clamping groove to align with the left end face of the meter frame, so that the measuring head is in an extending state.
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| CN201911299259.XA CN112985317B (en) | 2019-12-17 | 2019-12-17 | Detection device and method |
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| CN201911299259.XA CN112985317B (en) | 2019-12-17 | 2019-12-17 | Detection device and method |
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| CN112985317B (en) | 2022-08-23 |
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