CN113720511B - Shafting cooperation monitoring device - Google Patents
Shafting cooperation monitoring device Download PDFInfo
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- CN113720511B CN113720511B CN202111014328.5A CN202111014328A CN113720511B CN 113720511 B CN113720511 B CN 113720511B CN 202111014328 A CN202111014328 A CN 202111014328A CN 113720511 B CN113720511 B CN 113720511B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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Abstract
The invention relates to a shafting cooperation monitoring device, which comprises an axial member and a shaft hole, wherein the axial member is provided with a shaft hole; the rotating shaft penetrates through the shaft hole and is in transmission fit with the axial piece; the mounting groove is formed on the axial piece and penetrates through the hole wall of the shaft hole to form a notch; the transmission piece is embedded in the mounting groove and can contact the rotating shaft at the notch; and a first film sensor arranged between the transmission piece and the bottom wall of the mounting groove. According to the shafting cooperation monitoring device, if the axial sliding occurs between the rotating shaft and the axial piece in the moving process of the shafting, the cooperation relation between the rotating shaft and the transmitting piece is changed, stress fluctuation is generated at the contact cooperation position of the rotating shaft and the axial piece, the stress fluctuation is correspondingly generated between the transmitting piece and the groove bottom wall of the mounting groove, and the stress between the transmitting piece and the groove bottom wall of the mounting groove can be monitored through the first film sensor arranged between the transmitting piece and the groove bottom wall of the mounting groove.
Description
Technical Field
The invention relates to the technical field of intelligent monitoring, in particular to a shafting cooperation monitoring device.
Background
Shafting fit is one of the important fit modes of power output in rotary machinery, and as the running time of equipment is prolonged, the axial part can be matched with the shaft section to be invalid. Currently, in the shafting cooperation monitoring process, the running state and the damage condition are usually judged by manpower by means of some simple instruments and meters or intelligent monitoring is adopted.
However, the accuracy and reliability of the diagnosis result judged by man are poor, and real-time monitoring cannot be performed; the intelligent monitoring adopts a sensor technology, and although the on-line monitoring is realized, the existing intelligent monitoring is usually to install a sensor at a position far away from the joint of the rotating shaft and the axial member, so that the in-situ monitoring of faults cannot be realized, the attenuation of signals in the transmission process is caused, and the fault diagnosis has a certain error.
Disclosure of Invention
Based on this, it is necessary to provide a shafting cooperation monitoring device for realizing in-situ monitoring through a thin film sensor in order to solve the above problems.
A shafting cooperation monitoring device comprises an axial member, a shaft sleeve and a shaft sleeve, wherein the axial member is provided with a shaft hole; the rotating shaft penetrates through the shaft hole and is in transmission fit with the axial piece; the mounting groove is formed in the axial piece and penetrates through the hole wall of the shaft hole to form a notch; the transmission piece is embedded in the mounting groove and can contact the rotating shaft at the notch; and the first film sensor is arranged between the transmission piece and the bottom wall of the mounting groove, so as to monitor the matching state of the axial piece and the rotating shaft by monitoring the stress change between the transmission piece and the mounting groove.
According to the shafting fit monitoring device provided by the invention, the rotating shaft penetrates through the shaft hole and is in transmission fit with the axial member, the axial member is provided with the mounting groove penetrating through the wall of the shaft hole, the mounting groove is internally embedded with the transmission member which can be in contact with the rotating shaft at the notch, in the moving process of the shafting, if the rotating shaft and the axial member axially slide, the fit relation between the rotating shaft and the transmission member is changed, stress fluctuation is generated at the contact fit position of the rotating shaft and the axial member, and the transmission member is arranged at the contact fit position of the rotating shaft and the axial member, so that stress fluctuation is correspondingly generated between the transmission member and the groove bottom wall of the mounting groove, and the stress change between the transmission member and the groove bottom wall of the mounting groove can be monitored through the first film sensor arranged between the transmission member and the groove bottom wall of the mounting groove, so that the fit state of the axial member and the rotating shaft is monitored.
In one embodiment, the axial member is provided with a key slot penetrating through the hole wall of the shaft hole, the key slot is used for accommodating a key on the rotating shaft so as to realize circumferential matching of the rotating shaft and the axial member, and the key slot and the mounting groove are oppositely arranged in the shaft hole.
The key connection structure can be arranged between the rotating shaft and the axial piece for circumferential matching, and a key groove on the axial piece is used for keys; and the embedding of the transmission piece used for being matched with the first film sensor can influence the dynamic balance of the rotating shaft in the rotating process, so that the key groove and the mounting groove are oppositely arranged in the shaft hole at 180-degree intervals along the circumferential direction, the weights of the key and the transmission piece on the rotating shaft are balanced mutually, the dynamic balance of the shafting during rotation is ensured, and the monitoring error caused by dynamic unbalance is avoided.
In one embodiment, a cambered surface which can be attached to the peripheral wall of the rotating shaft is arranged on one side surface, close to the rotating shaft, of the transmitting member.
The cambered surface on the transmission piece can be better attached to the peripheral wall of the rotating shaft, so that when the axial sliding between the rotating shaft and the axial piece generates stress fluctuation, the transmission piece can accurately transmit the stress fluctuation to the first film sensor, in-situ monitoring can be realized, and monitoring errors are reduced.
In one embodiment, a groove for attaching the first film sensor is formed in one side, away from the rotating shaft, of the transmission piece.
The first film sensor is attached to the groove, and the thickness space of the first film sensor and the pins of the first film sensor can be reserved on the transmission piece.
In one embodiment, a slot communicating with the groove is further formed in one side of the transmission piece, where the groove is formed.
The first film sensor needs external power supply and also needs to output monitoring results, so that the need of leads is necessarily existed, the arrangement of the wire slots is beneficial to the arrangement of the leads, and the influence of stress on the transmission of electric energy or signals caused by stirring and extruding the leads is avoided; meanwhile, the wire slot can also prevent the stress wave generated between the transmission piece and the bottom wall of the mounting groove from pressing and breaking the lead wire in the moving process of the shafting.
In one embodiment, the mating relationship between the transfer member and the mounting groove is a transition fit.
By means of the arrangement, the transition fit can enable the transmission piece and the mounting groove to be relatively neutral, and the transmission piece is easy to disassemble, assemble and relatively static. Meanwhile, the thickness of the first film sensor is considered, and when the matching relation between the transmission piece and the mounting groove is interference fit, the matching is too tight, so that the first film sensor is easy to damage; when the cooperation relation between the transfer member and the mounting groove is clearance fit, the transfer member and the mounting groove can move relatively, and accuracy of the monitoring result of the first film sensor is affected. Because the matching relationship between the transmission piece and the mounting groove is transition fit, a groove is formed in the transmission piece, and the thickness of the first film sensor and the pin thereof is compensated through the manufacturing tolerance of the transmission piece design.
In one embodiment, the axial member is provided as a turbine disc.
So set up, in the motion process, probably take place the axial slip between pivot and the turbine dish to first film sensor can monitor the cooperation state of turbine dish and pivot.
In one embodiment, the axial member is configured as a driven member of a flexible coupling, and the shafting cooperation monitoring device further includes a driving member that cooperates with the driven member, and a second film sensor that is attached to a connection portion between the driven member and the driving member, and is configured to monitor a cooperation state between the driving member and the driven member.
The first film sensor monitors the matching state of the driven piece and the rotating shaft; meanwhile, collision or extrusion deformation of different degrees can occur between the ports of the driven piece and the driving piece, and different stress changes are generated, so that the second film sensor attached to the connection part of the driven piece and the driving piece can monitor the matching state of the driving piece and the driven piece.
In one embodiment, the second film sensor is disposed at the root of the jaw of the follower.
In one embodiment, the second film sensor is disposed on top of the jaws of the follower.
When the second film sensor is arranged at the root or the top of the claw of the driven member, the monitored stress changes generated by collision or extrusion deformation between the driven member and the respective ports of the driving member are the same, and the monitoring result is not influenced.
In one embodiment, the shafting cooperation monitoring device further comprises a wireless acquisition module, a groove for attaching the first film sensor and a wire groove communicated with the groove are formed in one side, far away from the rotating shaft, of the transmission piece, and two wire grooves are respectively arranged on two sides of the groove along the axial direction of the rotating shaft; the lead wire of the first film sensor and the lead wire of the second film sensor can pass through the wire slot to be connected with the wireless acquisition module.
So set up, first film sensor and second film sensor can pass through the lead wire transmission to wireless acquisition module with the data that monitor on, simultaneously, wireless acquisition module can carry out the energy supply to first film sensor and second film sensor through the lead wire. The two wire grooves are respectively arranged on two sides of the groove, the lead wire of the first film sensor penetrates through the groove on one side and is connected with the wireless acquisition module, the lead wire of the second film sensor penetrates through the grooves on two sides in sequence and is connected with the wireless acquisition module, and the lead wire of the second film sensor cannot be intertwined due to the fact that the lead wire is exposed outside, so that the normal operation of the flexible coupling is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of an axial member in a shafting fit monitoring device provided by the invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1 provided in the present invention;
FIG. 3 is a schematic diagram of a transmission member in the shafting fit monitoring device provided by the invention;
FIG. 4 is a schematic diagram of the structure of FIG. 3 from a side view perspective provided by the present invention;
FIG. 5 is a schematic view of the transmission member of FIG. 3 engaged with a rotating shaft according to the present invention;
FIG. 6 is a schematic structural diagram of a driving member in the shafting cooperation monitoring device provided by the invention;
fig. 7 is a schematic cross-sectional view of fig. 6 provided in the present invention.
Description of the main reference signs
1. An axial member; 11. a mounting groove; 111. a notch; 12. a shaft hole; 13. a key slot; 2. a rotating shaft; 3. a transmission member; 33. a cambered surface; 31. a groove; 32. a wire slot; 4. a first thin film sensor; 5. a driving member; 6. and a second thin film sensor.
The foregoing general description of the invention will be described in further detail with reference to the drawings and detailed description.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that when an element is referred to as being "mounted to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
Because the traditional intelligent shafting cooperation monitoring device is generally to install the sensor in the position of the junction of keeping away from pivot and axial member shaft hole, can't realize the normal position monitoring of trouble, causes the decay of signal in the transmission process, leads to fault diagnosis to have certain error.
In order to solve the above problems, as shown in fig. 1 to 7, the present invention provides a shafting cooperation monitoring device, which is configured to monitor the cooperation state between an axial member and a rotating shaft by providing an installation groove penetrating through the wall of the shaft hole in the axial member, and providing a transmission member and a film sensor in the installation groove, wherein the transmission member and the film sensor can contact the rotating shaft, so as to realize in-situ monitoring of the stress variation between the transmission member and the installation groove.
As shown in fig. 1 to 5, specifically, the sensor comprises an axial member 1, a rotating shaft 2, a transmission member 3 and a first film sensor 4; the axial member 1 is provided with a shaft hole 12, the rotating shaft 2 is arranged in the shaft hole 12 in a penetrating manner and is in transmission fit with the axial member 1, the axial member 1 is provided with a mounting groove 11 and penetrates through the hole wall of the shaft hole 12 to form a notch 111, the transmission member 3 is embedded in the mounting groove 11 and can be in contact with the rotating shaft 2 at the notch 111, and the first film sensor 4 is arranged between the transmission member 3 and the bottom wall of the mounting groove 11 so as to monitor the fit state of the axial member 1 and the rotating shaft 2 by monitoring the stress change between the transmission member 3 and the mounting groove 11.
According to the shafting fit monitoring device provided by the invention, the rotating shaft 2 is arranged in the shaft hole 12 in a penetrating manner and is in transmission fit with the axial piece 1, the axial piece 1 is provided with the mounting groove 11 penetrating through the wall of the shaft hole 12, the transmission piece 3 which can be in contact with the rotating shaft 2 at the notch 111 is embedded in the mounting groove 11, in the shafting movement process, if the rotating shaft 2 and the axial piece 1 possibly slide axially, the fit relation between the rotating shaft 2 and the transmission piece 3 is changed, stress fluctuation is generated at the contact fit position of the rotating shaft 2 and the axial piece 1, and the transmission piece 3 is arranged at the contact fit position of the rotating shaft 2 and the axial piece 1, so that the stress fluctuation is correspondingly generated between the transmission piece 3 and the groove bottom wall of the mounting groove 11, and the stress change between the transmission piece 3 and the groove bottom wall of the mounting groove 11 can be monitored through the first film sensor 4 arranged between the transmission piece 3 and the groove bottom wall of the mounting groove 11, and the fit state of the axial piece 1 and the rotating shaft 2 is monitored.
It will be appreciated that the mounting groove 11 may be of the illustrated shape or may be modified to other shapes depending on the style of the axial member 1, and the invention is not limited in detail herein.
It should be understood that the transmission member 3 may have a shape as shown in the drawings, or may be adjusted to have other shapes according to the shape of the mounting groove 11 and the style of the rotating shaft 2, and the present invention is not limited thereto.
As shown in fig. 1 to 2, the axial member 1 is provided with a key slot 13 penetrating through the hole wall of the shaft hole 12, the key slot 13 is used for accommodating a key on the rotating shaft 2 to realize circumferential matching between the rotating shaft 2 and the axial member 1, and the key slot 13 and the mounting groove 11 are relatively arranged in the shaft hole 12. In order to realize circumferential matching between the rotating shaft 2 and the axial member 1, a key connection structure can be arranged between the rotating shaft 2 and the axial member 1, and a key groove 13 on the axial member 1 is used for accommodating a key; the introduction of the transmitting member 3 for matching with the first film sensor 4 affects the dynamic balance of the rotating shaft 2 in the rotating process, so that the key slot 13 and the mounting groove 11 are relatively arranged in the shaft hole 12 at 180 degrees along the circumferential direction, the weights of the key on the rotating shaft 2 and the transmitting member 3 are balanced mutually, the dynamic balance of the rotating shaft system is ensured, and the monitoring error caused by dynamic unbalance is avoided.
Further, the size of the inner space of the key groove 13 and the size of the notch of the installation groove 11 are the same, and the size and the weight of the key on the rotating shaft 2 and the size and the weight of the transmission piece 3 are the same, so that the shaft system matching can be further ensured to keep dynamic balance, and the normal operation of the shaft system matching can be ensured.
It will be appreciated that the key slot 13 may be a flat key slot and the key on the spindle 2 may be a flat key that mates with the flat key slot; of course, other key ways and keys that can be mated with each other are also possible.
As shown in fig. 4 to 5, a side surface of the transmission member 3 near the rotating shaft 2 is provided with an arc surface 33 capable of adhering to the outer peripheral wall of the rotating shaft 2. The cambered surface 33 on the transfer member can be better attached to the peripheral wall of the rotating shaft 2, so that when the axial sliding between the rotating shaft 2 and the axial member 1 generates stress fluctuation, the transfer member 3 can accurately transfer the stress fluctuation to the first film sensor 4, thereby ensuring that in-situ monitoring can be realized and reducing monitoring errors.
As shown in fig. 3, a groove 31 for attaching the first film sensor 4 is formed on one side of the transmission member 3 away from the rotating shaft 2. The first film sensor 4 is attached in the groove 31, and a thickness space of the first film sensor 4 and pins thereof can be reserved on the transmission member 3. Since the thickness of the thin film sensor itself is not large, the groove 31 may be formed as a shallow groove having a depth of approximately 0.1 mm.
As shown in fig. 3, a slot 32 communicating with the slot 31 is further formed on the side of the transmission member 3 where the slot 31 is formed. The first film sensor 4 needs external power supply and also needs to output monitoring results, so that leads are necessarily present, the arrangement of the wire slots 32 is beneficial to the wiring, and the influence of stress fluctuation on the electric energy or signal transmission caused by the extrusion of the leads is avoided; and simultaneously, stress waves generated between the transmission piece 3 and the bottom wall of the mounting groove 11 during the movement of the shafting are prevented from pressing the broken lead.
The mating relationship between the transfer element 3 and the mounting groove 11 may be selected as a transition fit. Specifically, the tolerance zone of the mounting groove 11 and the tolerance zone of the transmission member 3 overlap each other, the maximum limit size of the transmission member 3 is larger than the minimum limit size of the mounting groove 11, the minimum limit size of the transmission member 3 is smaller than the maximum limit size of the mounting groove 11, and the actual size of the transmission member 3 may be larger or smaller than the actual size of the mounting groove 11.
The transition fit enables a better centering between the transfer element 3 and the mounting groove 11, easy disassembly, assembly and relative rest. Meanwhile, considering the thickness of the first film sensor 4, when the matching relation between the transmission piece 3 and the mounting groove 11 is interference fit, the fit is too tight, and the first film sensor 4 is easy to damage; when the matching relation between the transmission piece 3 and the mounting groove 11 is clearance matching, the transmission piece 3 and the mounting groove 11 can move relatively, and accuracy of the monitoring result of the first film sensor 4 is affected. Since the matching relationship between the transmission member 3 and the mounting groove 11 is transition fit, and the groove 31 is formed on the transmission member 3, the matching tolerance and the groove 31 can cooperatively compensate the thickness of the first thin film sensor 4 and the pins thereof.
In one embodiment, the axial element 1 is provided as a turbine disk. During the movement, axial sliding may occur between the rotating shaft 2 and the turbine disc, so that the first thin film sensor 4 can monitor the matching state of the turbine disc and the rotating shaft 2.
As shown in fig. 1 to 7, in another embodiment, the axial member 1 is configured as a driven member of a flexible coupling, and the shafting fit monitoring device further includes a driving member 5 that is matched with the driven member, and a second film sensor 6, where the second film sensor 6 is attached to a connection portion between the driven member and the driving member 5, and is used for monitoring a fit state between the driving member 5 and the driven member. The flexible coupling consists of a driving part 5 and a driven part, and the driving part and the driven part are respectively used for connecting two shafts in different mechanisms to rotate together so as to transmit torque, and the phenomenon that the driven part and the driven shaft section are in failure in the matching process of the flexible coupling or the driving part and the driven part of the coupling are separated can occur. When the axial sliding occurs between the rotating shaft 2 and the driven member, the first film sensor 4 monitors the matching state of the driven member and the rotating shaft 2; meanwhile, collision or extrusion deformation of different degrees can occur between the ports of the driven piece and the driving piece, and different stress changes are generated, so that the second film sensor 6 attached to the connection part of the driven piece and the driving piece 5 can monitor the matching state of the driving piece 5 and the driven piece.
In one embodiment, the second film sensor 6 is provided at the jaw root of the follower. In another embodiment, the second film sensor 6 is provided on top of the jaws of the follower. When the second film sensor 6 is arranged at the root or the top of the claw of the driven member, the monitored stress changes generated due to collision or extrusion deformation between the respective ports of the driven member and the driving member are the same, and the monitoring result is not affected.
Further, the second film sensor 6 may be one, and one second film sensor 6 is disposed at the root or the top of any one follower claw; of course, there may be a plurality of second film sensors 6, and one second film sensor 6 is disposed at each root or top of each follower jaw. The second film sensors 6 can monitor stress changes caused by collision or extrusion deformation between the driven piece and each jaw of the respective ports of the driving piece, and accuracy of monitoring results is improved.
As shown in fig. 1 and 3, the shafting cooperation monitoring device further comprises a wireless acquisition module (not shown), a groove 31 for attaching the first film sensor 4 is formed on one side, away from the rotating shaft 2, of the transmission piece 3, and two wire grooves 32 communicated with the groove 31 are formed along the axial direction of the rotating shaft 2, and the two wire grooves 32 are respectively arranged on two sides of the groove 31; leads of the first and second thin film sensors 4 and 6 can pass through the wire slots 32 to be connected with the wireless acquisition module. The first thin film sensor 4 and the second thin film sensor 6 can transmit the monitored data to the wireless acquisition module through the lead wires, and meanwhile, the wireless acquisition module can supply energy to the first thin film sensor 4 and the second thin film sensor 6 through the lead wires. The two wire grooves 32 are respectively arranged on two sides of the groove 31, the lead wire of the first film sensor 4 penetrates through the groove on one side and is connected with the wireless acquisition module, the lead wire of the second film sensor 6 sequentially penetrates through the grooves on two sides and is connected with the wireless acquisition module, and the lead wire of the second film sensor 6 cannot be intertwined due to the fact that the lead wire is exposed outside, so that the normal operation of the flexible coupling is ensured. The grooves can also prevent the transmission piece 3 from protruding out of the notch 111 of the mounting groove 11 due to the thickness of the lead wire, and the flexible coupling is influenced to rotate in cooperation with the rotating shaft; and simultaneously, stress waves generated between the transmission piece 3 and the bottom wall of the mounting groove 11 during the movement of the coupler are prevented from pressing and breaking the lead wires.
It should be understood that the wire groove 32 may be formed at the illustrated position, or may be formed in other manners according to the shapes of the mounting groove 11 and the transmission member 3 and the connection positions of the leads of the first film sensor 4 and the second film sensor 6, and the present invention is not limited thereto.
Further, the wireless acquisition module can be arranged on the rotating shaft 2 and synchronously rotates with the rotating shaft 2, so that the first film sensor 4 and the second film sensor 6 can conveniently transmit the monitored data to the wireless acquisition module through leads; the wireless acquisition module can transmit data to an upper computer (not shown) in a wireless transmission mode so that a user can know the matching state of the axial part 1 and the rotating shaft 2 and the matching state of the driving part 5 and the driven part in real time.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (9)
1. Shafting cooperation monitoring devices, characterized by includes:
an axial member (1) having a shaft hole (12);
the rotating shaft (2) is arranged in the shaft hole (12) in a penetrating way and is in transmission fit with the axial piece (1);
the mounting groove (11) is formed on the axial piece (1) and penetrates through the hole wall of the shaft hole (12) to form a notch (111);
a transmission member (3) which is fitted into the mounting groove (11) and can contact the rotating shaft (2) at the notch (111); and
the first film sensor (4) is arranged between the transmission piece (3) and the bottom wall of the mounting groove (11) so as to monitor the matching state of the axial piece (1) and the rotating shaft (2) by monitoring the stress change between the transmission piece (3) and the mounting groove (11);
the matching relationship between the transmission piece (3) and the mounting groove (11) is transition matching;
the axial sliding of the rotating shaft (2) and the axial piece (1) occurs, the matching relation between the rotating shaft (2) and the transmitting piece (3) changes, stress fluctuation is generated at the contact matching position of the rotating shaft (2) and the axial piece (1), the transmitting piece (3) is arranged at the contact matching position of the rotating shaft (2) and the axial piece (1), stress fluctuation is correspondingly generated between the transmitting piece (3) and the groove bottom wall of the mounting groove (11), and the stress change between the transmitting piece (3) and the groove bottom wall of the mounting groove (11) is monitored through the first film sensor (4), so that the matching state of the axial piece (1) and the rotating shaft (2) is monitored.
2. Shafting cooperation monitoring device according to claim 1, characterized in that a key slot (13) penetrating through to the hole wall of the shaft hole (12) is formed in the axial member (1), the key slot (13) is used for accommodating a key on the rotating shaft (2) so as to realize circumferential cooperation of the rotating shaft (2) and the axial member (1), and the key slot (13) and the mounting groove (11) are relatively arranged in the shaft hole (12).
3. Shafting cooperation monitoring device according to claim 1, characterized in that a side of the transfer element (3) close to the rotating shaft (2) is provided with a cambered surface (33) which can be attached to the peripheral wall of the rotating shaft (2).
4. Shafting cooperation monitoring device according to claim 1, characterized in that a groove (31) for attaching the first film sensor (4) is provided on a side of the transfer element (3) away from the rotating shaft (2).
5. The shafting cooperation monitoring device according to claim 4, wherein a wire groove (32) communicated with the groove (31) is further formed in one side of the transmission piece (3) where the groove (31) is formed.
6. Shafting engagement monitoring device according to any one of claims 1-5, characterized in that the axial member (1) is provided as a turbine disc.
7. Shafting cooperation monitoring device according to any one of claims 1-5, characterized in that the axial member (1) is provided as a driven member of a flexible coupling, the shafting cooperation monitoring device further comprises a driving member (5) cooperating with the driven member, and a second film sensor (6), the second film sensor (6) being attached to the driven member at the connection with the driving member (5) and being used for monitoring the cooperation state of the driving member (5) with the driven member.
8. Shafting cooperation monitoring device according to claim 7, characterized in that the second film sensor (6) is arranged at the claw root of the follower; and/or the number of the groups of groups,
the second film sensor (6) is arranged at the top of the claw of the driven piece.
9. The shafting cooperation monitoring device according to claim 8, further comprising a wireless acquisition module, wherein a groove (31) for attaching the first film sensor (4) is formed on one side of the transmission piece (3) away from the rotating shaft (2), and two wire grooves (32) communicated with the groove (31), and the two wire grooves (32) are respectively arranged on two sides of the groove (31) along the axial direction of the rotating shaft (2); the leads of the first film sensor (4) and the second film sensor (6) can pass through the wire slot (32) to be connected with the wireless acquisition module.
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| CN202111014328.5A CN113720511B (en) | 2021-08-31 | 2021-08-31 | Shafting cooperation monitoring device |
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| CN202111014328.5A CN113720511B (en) | 2021-08-31 | 2021-08-31 | Shafting cooperation monitoring device |
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