CN111157107B - High-stability generator swing measuring device - Google Patents
High-stability generator swing measuring device Download PDFInfo
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- CN111157107B CN111157107B CN202010081069.7A CN202010081069A CN111157107B CN 111157107 B CN111157107 B CN 111157107B CN 202010081069 A CN202010081069 A CN 202010081069A CN 111157107 B CN111157107 B CN 111157107B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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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
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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Abstract
The invention relates to a high-stability generator swing measuring device which comprises a signal transmitting device, a first receiving probe, a second receiving probe, a first mounting plate, a second mounting plate, a support and a driving mechanism, wherein the signal transmitting device is connected with the first receiving probe; the signal transmitting device is detachably connected with the water baffle, the signal transmitting device is positioned on the upper side of the water baffle, and the central axis of the signal transmitting device is collinear with the central axis of the rotating shaft; the bracket is fixedly arranged on the generator body; the first mounting plate is slidably mounted on the support, the second mounting plate is slidably mounted on the support, the first mounting plate and the second mounting plate are both connected with the driving mechanism, and the driving mechanism is suitable for driving the first mounting plate and the second mounting plate to synchronously move towards or away from each other; the first receiving probe is fixedly connected to the first mounting plate, the second receiving probe is fixedly connected to the second mounting plate, and the first receiving probe and the second receiving probe are oppositely arranged and are located on two sides of the central axis of the signal transmitting device.
Description
Technical Field
The invention relates to the technical field of swing measurement, in particular to a high-stability generator swing measurement device.
Background
When a plurality of turbine generator sets work, because the water wheel rotating shafts are not perpendicular to the axes of the generator sets or the axes of the plurality of sets are bent, the generator sets and the water wheel rotating shafts can generate a swing degree, the swing degree is not only one of main technical indexes for measuring the manufacturing and mounting quality of the water wheel generator sets, but also the key point for ensuring the stable and reliable operation of the generator sets, and therefore the measurement of the swing degree of the generator is one of important works for ensuring the normal work of the generator sets.
When the hydraulic generator unit works, as the rotating parts of the unit have large mass and large inertia and have large randomness during operation, the unit is difficult to accurately stop on a certain specific shaft number, the error of throw calculation is increased, the unit mass is reduced, and the judgment on the throw size and the direction of the jigger is made to have certain blindness.
A patent with application number CN201721218029.2 and publication number 20180403 discloses a high stability generator swing measuring device, which has the technical scheme that: the top end of the water wheel rotating shaft extends to the outside of the blade wheel and is fixedly connected with a baffle plate, the left side and the right side of the upper surface of the water wheel generator body are fixedly connected with supporting rods, the top ends of the two supporting rods are fixedly connected with connecting rods, the upper surface of the connecting rod, which is close to one end of the water wheel rotating shaft, is fixedly connected with a water baffle plate, the upper surface of the connecting rod is fixedly connected with a first connecting block between the water baffle plate and the water wheel rotating shaft, the center of one surface, which is close to the water wheel rotating shaft, of the first connecting block is provided with a first fixing groove, a first measuring probe is fixedly arranged in the groove of the first fixing groove, a first water baffle plate is fixedly arranged at the notch of the first fixing groove, the center of the upper surface of the first connecting block is fixedly connected with a fixing rod, the upper side and the lower side of the outer surface of the fixing rod are both provided with cutting sleeves, and one end, which is far away from the fixing rod, of the cutting sleeves is fixedly connected with the water baffle plate, the top of dead lever and the bottom surface fixed connection of second connecting block, the second fixed slot has been seted up to the center department that the second connecting block is close to water wheels pivot one side, the inslot fixed mounting of second fixed slot has second measuring probe, the notch department fixed mounting of second fixed slot has the second water gauge. The technical scheme has a complex structure, and the position of the probe cannot be adjusted, so that the improvement exists.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention aims to provide a high-stability generator swing measuring device which is simple in structure and adjustable in probe position.
The technical scheme of the invention is as follows: a high-stability generator swing measuring device comprises a generator body and a rotating shaft, wherein a generator shaft is arranged on the upper surface of the generator body, the central axis of the generator shaft is collinear with the central axis of the generator body, the rotating shaft is positioned above the generator shaft and is coaxially arranged with the generator shaft, the rotating shaft is fixedly connected with the generator shaft through a connecting seat, a plurality of blades which are circumferentially distributed at intervals are fixedly connected to the peripheral wall of the rotating shaft, and a water baffle is fixedly connected to the upper end of the rotating shaft; the signal transmitting device is detachably connected with the water baffle, the signal transmitting device is positioned on the upper side of the water baffle, and the central axis of the signal transmitting device is collinear with the central axis of the rotating shaft; the bracket is fixedly arranged on the generator body; the first mounting plate is slidably mounted on the support, the second mounting plate is slidably mounted on the support, the first mounting plate and the second mounting plate are both connected with the driving mechanism, and the driving mechanism is suitable for driving the first mounting plate and the second mounting plate to synchronously move towards or away from each other; fixedly connected with on the first mounting panel first receiving probe, fixedly connected with on the second mounting panel second receiving probe, first receiving probe with second receiving probe sets up relatively and is located the both sides of signal emission device's the central axis.
Further, the support includes first frame plate, second frame plate and connecting plate, first frame plate vertical extension and with generator body fixed connection, second frame plate vertical extension and with generator body fixed connection, first frame plate with the second frame plate is located the both sides of the central axis of pivot, the one end of connecting plate with the top fixed connection of first frame plate, the other end of connecting plate with the top fixed connection of second frame plate.
Furthermore, the connecting plate is provided with a sliding groove, the sliding groove extends along the length direction of the connecting plate and penetrates through the connecting plate, and the first mounting plate and the second mounting plate are arranged in the sliding groove in a penetrating mode and can slide along the sliding groove.
Further, the driving mechanism comprises a rotating rod and a motor; the rotating rod is rotatably arranged on the support and is connected with the motor and driven to rotate by the motor, and the rotating rod comprises a first rod section and a second rod section along the length direction of the rotating rod, a first thread is arranged on the outer peripheral wall of the first rod section, a second thread is arranged on the second rod section, and the rotating direction of the first thread is opposite to that of the second thread; the first mounting plate is provided with a first threaded hole, the first mounting plate is connected with the first rod section in a threaded mode through the first threaded hole, the second mounting plate is provided with a second threaded hole, and the second mounting plate is connected with the second rod section in a threaded mode through the second threaded hole.
Furthermore, the upper surface of the water baffle is fixedly connected with a stud which extends vertically and upwards, the central axis of the stud is collinear with the central axis of the rotating shaft, and the signal transmitting device is sleeved on the stud and is in threaded connection with the stud.
Further, the upper surface of breakwater is equipped with the annular seal groove of undercut, the seal groove with the double-screw bolt coaxial arrangement, install first sealing washer in the seal groove, first sealing washer with signal emission device's diapire butt.
Furthermore, an annular sealing seat is fixedly connected to the water baffle, the sealing seat and the stud are coaxially arranged, a second sealing ring is mounted on the sealing seat, and the second sealing ring is abutted to the outer peripheral wall of the signal transmitting device.
Compared with the prior art, the invention has the following beneficial effects:
1. the positions of the first receiving probe and the second receiving probe are adjustable: when the device is used, the signal transmitting device is installed on the water baffle firstly, then the first installation plate and the second installation plate are driven to slide through the driving mechanism so as to adjust the positions of the first receiving probe and the second receiving probe, and the signals transmitted by the signal transmitting device can be accurately received by the first receiving probe and the second receiving probe.
2. The driving mechanism comprises a rotating rod and a motor, two sections of threads with different rotating directions are arranged on the rotating rod, so that the first mounting plate and the second mounting plate can slide in the opposite direction, the threaded connection has self-locking performance, and the connection is reliable, so that the positions of the first mounting plate and the second mounting plate cannot fluctuate, and the first receiving probe and the second joint probe are not influenced to receive signals.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view from a left side perspective of the present invention;
FIG. 2 is a perspective view from the right side of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view from a first perspective of the present invention;
FIG. 5 is a cross-sectional view from a second perspective of the present invention;
fig. 6 is an exploded view of a portion of the signal emitting device of the present invention.
Reference numerals:
a generator body 1; a connecting seat 2; a rotating shaft 3; a blade 4; a signal transmitting device 5; a first mounting plate 6; a second mounting plate 7; a first receiving probe 8; a second receiving probe 9; a first frame plate 10; a second frame plate 11; a connecting plate 12; a chute 13; a turning bar 14; a motor 15; a stud 16; a first seal ring 17; a seal seat 18; a second seal 19.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The technical scheme of the invention is further explained by combining the attached drawings.
A high-stability generator 15 swing measuring device as shown in fig. 1, fig. 2 and fig. 3 comprises a generator 15 body 1 and a rotating shaft 3.
The upper surface of generator 15 body 1 is equipped with generator 15 axle, the central axis of generator 15 axle and the central axis collineation of generator 15 body 1, pivot 3 is located generator 15 epaxial side and sets up with generator 15 axle is coaxial, pivot 3 passes through connecting seat 2 fixed connection with generator 15 axle, a plurality of circumference interval distribution's of fixedly connected with blade 4 on the periphery wall of pivot 3, the upper end fixedly connected with breakwater of pivot 3, therefore, when generator 15 body 1 rotates, pivot 3 and generator 15 axle meeting synchronous rotation, and because pivot 3 and generator 15 axle are coaxial to be set up, consequently, can calculate the throw of generator 15 through the throw of measuring pivot 3. Other structures for the generator 15 are well known to those skilled in the art and will not be described in detail herein.
As shown in fig. 1 and 2, the device further comprises a signal transmitting device 5, a first receiving probe 8, a second receiving probe 9, a first mounting plate 6, a second mounting plate 7, a bracket and a driving mechanism.
The signal emitting device 5 is detachably connected with the water baffle, so that the signal emitting device 5 is convenient to disassemble and assemble, the signal emitting device 5 is positioned on the upper side of the water baffle, and the central axis of the signal emitting device 5 is collinear with the central axis of the rotating shaft 3; the support is fixedly arranged on the generator 15 body 1, the first mounting plate 6 is arranged on the support in a sliding mode, the second mounting plate 7 is arranged on the support in a sliding mode, the first mounting plate 6 and the second mounting plate 7 are both connected with the driving mechanism, and the driving mechanism is suitable for driving the first mounting plate 6 and the second mounting plate 7 to synchronously move towards or away from each other; fixedly connected with first receiving probe 8 on the first mounting panel 6, fixedly connected with second receiving probe 9 on the second mounting panel 7, first receiving probe 8 sets up and is located the both sides of the central axis of signal transmission device 5 with second receiving probe 9 relatively.
When the device is used, the signal transmitting device 5 is firstly installed on the water baffle, then the driving mechanism drives the first installation plate 6 and the second installation plate 7 to slide so as to adjust the positions of the first receiving probe 8 and the second receiving probe 9, so as to ensure that the first receiving probe 8 and the second receiving probe 9 can accurately receive signals transmitted by the signal transmitting device 5, signal data detected by the first receiving probe 8 and the second receiving probe 9 are transmitted to an external computer for calculation, and then the swing degree of the rotating shaft 3 can be calculated, and the central axis of the signal transmitting device 5 is collinear with the central axis of the rotating shaft 3, so that the measurement error can be reduced, and the measurement precision is improved.
As shown in fig. 1, the support includes first frame plate 10, second frame plate 11 and connecting plate 12, first frame plate 10 vertical extension and with generator 15 body 1 fixed connection, second frame plate 11 vertical extension and with generator 15 body 1 fixed connection, first frame plate 10 and second frame plate 11 are located the both sides of the central axis of pivot 3, the one end of connecting plate 12 and the top fixed connection of first frame plate 10, the other end of connecting plate 12 and the top fixed connection of second frame plate 11, therefore simple structure.
In this embodiment, the connecting plate 12 is provided with a sliding groove 13, the sliding groove 13 extends along the length direction of the connecting plate 12 and penetrates through the connecting plate 12, and the first mounting plate 6 and the second mounting plate 7 penetrate through the sliding groove 13 and can slide along the sliding groove 13.
In this embodiment, the driving mechanism includes a rotary rod 14 and a motor 15; the rotating rod 14 is rotatably arranged on the bracket, the rotating rod 14 is connected with the motor 15 and driven by the motor 15 to rotate, the rotating rod 14 comprises a first rod section and a second rod section along the length direction of the rotating rod 14, a first thread is arranged on the outer peripheral wall of the first rod section, a second thread is arranged on the second rod section, and the rotating direction of the first thread is opposite to that of the second thread; be equipped with first screw hole on the first mounting panel 6, first mounting panel 6 is equipped with the second screw hole on the second mounting panel 7 through first screw hole and first pole section threaded connection, second mounting panel 7 is through second screw hole and second pole section threaded connection, simple structure from this, is convenient for realize. In addition, the threaded connection has self-locking performance and is reliable in connection, so that the position of the first mounting plate 6 and the position of the second mounting plate 7 cannot fluctuate, and the signals received by the first receiving probe 8 and the second joint probe cannot be influenced.
Example 2
Example 2 is a further improvement over example 1.
There are many ways to detachably connect the signal emitting device 5 to the water guard, for example, as shown in fig. 5 and 6, a stud 16 extending vertically and upwardly is fixedly connected to the upper surface of the water guard, the central axis of the stud 16 is collinear with the central axis of the rotating shaft 3, and the signal emitting device 5 is sleeved on the stud 16 and is in threaded connection with the stud 16, which is simple and reliable.
In order to avoid the corrosion of the water to the screw thread, in the embodiment, as shown in fig. 4 and 6, the upper surface of the water baffle is provided with a downward-concave annular sealing groove, the sealing groove is coaxially arranged with the stud 16, a first sealing ring 17 is installed in the sealing groove, and the first sealing ring 17 abuts against the bottom wall of the signal transmitting device 5, so that the sealing performance of the device can be improved
In addition, an annular sealing seat 18 is fixedly connected to the water baffle, the sealing seat 18 and the stud 16 are coaxially arranged, a second sealing ring 19 is mounted on the sealing seat 18, and the second sealing ring 19 is abutted to the outer peripheral wall of the signal transmitting device 5, so that moisture can be further prevented from penetrating into the threaded connection position of the signal transmitting device 5 and the stud 16.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A high-stability generator swing measuring device comprises a generator body and a rotating shaft, wherein a generator shaft is arranged on the upper surface of the generator body, the central axis of the generator shaft is collinear with the central axis of the generator body, the rotating shaft is positioned above the generator shaft and is coaxially arranged with the generator shaft, the rotating shaft is fixedly connected with the generator shaft through a connecting seat, a plurality of blades which are circumferentially distributed at intervals are fixedly connected to the peripheral wall of the rotating shaft, and a water baffle is fixedly connected to the upper end of the rotating shaft;
the signal transmitting device is detachably connected with the water baffle, the signal transmitting device is positioned on the upper side of the water baffle, and the central axis of the signal transmitting device is collinear with the central axis of the rotating shaft;
the bracket is fixedly arranged on the generator body; the first mounting plate is slidably mounted on the support, the second mounting plate is slidably mounted on the support, the first mounting plate and the second mounting plate are both connected with the driving mechanism, and the driving mechanism is suitable for driving the first mounting plate and the second mounting plate to synchronously move towards or away from each other;
the first mounting plate is fixedly connected with the first receiving probe, the second mounting plate is fixedly connected with the second receiving probe, and the first receiving probe and the second receiving probe are oppositely arranged and are positioned on two sides of the central axis of the signal transmitting device;
the support comprises a first frame plate, a second frame plate and a connecting plate, the first frame plate vertically extends and is fixedly connected with the generator body, the second frame plate vertically extends and is fixedly connected with the generator body, the first frame plate and the second frame plate are positioned on two sides of the central axis of the rotating shaft, one end of the connecting plate is fixedly connected with the top end of the first frame plate, and the other end of the connecting plate is fixedly connected with the top end of the second frame plate;
the connecting plate is provided with a sliding groove, the sliding groove extends along the length direction of the connecting plate and penetrates through the connecting plate, and the first mounting plate and the second mounting plate penetrate through the sliding groove and can slide along the sliding groove;
the driving mechanism comprises a rotating rod and a motor;
the rotating rod is rotatably arranged on the support and is connected with the motor and driven to rotate by the motor, and the rotating rod comprises a first rod section and a second rod section along the length direction of the rotating rod, a first thread is arranged on the outer peripheral wall of the first rod section, a second thread is arranged on the second rod section, and the rotating direction of the first thread is opposite to that of the second thread;
the first mounting plate is provided with a first threaded hole, the first mounting plate is connected with the first rod section in a threaded mode through the first threaded hole, the second mounting plate is provided with a second threaded hole, and the second mounting plate is connected with the second rod section in a threaded mode through the second threaded hole.
2. The high stability generator throw measuring device of claim 1, wherein a vertically upwardly extending stud is fixedly connected to the upper surface of the water deflector, the central axis of the stud is collinear with the central axis of the rotating shaft, and the signal emitting device is sleeved on the stud and is in threaded connection with the stud.
3. The high stability generator throw measuring device of claim 2, wherein the upper surface of the water baffle is provided with a downward-recessed annular sealing groove, the sealing groove is coaxial with the stud, a first sealing ring is mounted in the sealing groove, and the first sealing ring is abutted against the bottom wall of the signal transmitting device.
4. The high stability generator throw measuring device of claim 2, wherein an annular sealing seat is fixedly connected to the water baffle, the sealing seat is coaxial with the stud, and a second sealing ring is mounted on the sealing seat and abuts against the outer peripheral wall of the signal transmitting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010081069.7A CN111157107B (en) | 2020-02-05 | 2020-02-05 | High-stability generator swing measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010081069.7A CN111157107B (en) | 2020-02-05 | 2020-02-05 | High-stability generator swing measuring device |
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| CN111157107A CN111157107A (en) | 2020-05-15 |
| CN111157107B true CN111157107B (en) | 2021-11-30 |
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| CN202010081069.7A Active CN111157107B (en) | 2020-02-05 | 2020-02-05 | High-stability generator swing measuring device |
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| CN111157107A (en) | 2020-05-15 |
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Effective date of registration: 20211111 Address after: 250000 room 1601, block a, building 1, Jinan pharmaceutical Valley R & D platform zone, No. 1, north section of Gangxing Third Road, comprehensive free trade zone, high tech Zone, Jinan City, Shandong Province Applicant after: Shandong United Power Industry Development Co., Ltd Address before: 314000 No. 18, Changsheng Road, economic development zone, Jiaxing City, Zhejiang Province Applicant before: Hu Lingjiang |
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