CN219996138U - Mechanical sensing type hydropower station spindle swing degree detection device - Google Patents
Mechanical sensing type hydropower station spindle swing degree detection device Download PDFInfo
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- CN219996138U CN219996138U CN202321608088.6U CN202321608088U CN219996138U CN 219996138 U CN219996138 U CN 219996138U CN 202321608088 U CN202321608088 U CN 202321608088U CN 219996138 U CN219996138 U CN 219996138U
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- 238000001514 detection method Methods 0.000 title claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 238000006073 displacement reaction Methods 0.000 claims abstract description 23
- 238000013016 damping Methods 0.000 claims description 15
- 239000000523 sample Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000005259 measurement Methods 0.000 description 5
- 239000000306 component Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a mechanical sensing type hydropower station spindle swing degree detection device which comprises a shell, a contact assembly, a transmission assembly, a dial indicator, a displacement sensor and a plurality of return springs, wherein the contact assembly is arranged on the shell; the contact assembly comprises a mounting frame, two elastic wheels and a detection head; the mounting frame is slidably arranged at one end of the shell, and the two elastic wheels are symmetrically arranged and are rotatably arranged at two ends of the outer side of the mounting frame through respective wheel shafts; the detection head is positioned in the middle of the mounting frame, and a through hole corresponding to the detection head is formed in the middle of the mounting frame; the transmission assembly comprises a transmission rod and a sliding table, and the sliding table can slide along a preset sliding rail in the shell; one end of the transmission rod is fixedly connected with the detection head, and the other end of the transmission rod is used for driving the sliding table to slide; the dial indicator main body is fixedly arranged at the top of the shell; the top end of the sliding table is simultaneously contacted with the measuring end of the dial indicator and the displacement sensor; the plurality of return springs are used for providing precompression towards the outer end for the mounting frame and the detection head.
Description
Technical Field
The utility model relates to the technical field of measuring devices, in particular to a mechanical sensing type hydropower station spindle swing detection device.
Background
Hydroelectric power generation is widely used in the field of power supply, and the main shaft of a water turbine is one of the core components of a water turbine in a hydropower station. When the water turbine set is running, the center line of the main shaft rotates around the theoretical center line. However, due to errors in manufacturing and installation, unbalance of three-phase voltage in the running process and other factors, the main shaft of the water turbine deviates from a theoretical center line in running to generate a swing degree, so that the vibration of the unit is aggravated, the abrasion is increased, and the safe running of the unit is further threatened.
In manual daily inspection, the main shaft of the water turbine is difficult to know and monitor in real time due to the main shaft swing and vibration data. Because the main shaft of the water turbine can not be stopped for detection in the period of high water yield, the surface roughness grade is low, the surface linear speed is high, the traditional dial indicator is utilized for direct manual measurement, and the reading is influenced by the impact force, the surface roughness and other factors generated by the high-speed rotation of the main shaft of the water turbine, so that the main shaft can not be read normally. In addition, the measuring personnel work beside the main shaft of the water turbine rotating at high speed, which can cause human measurement errors and even potential safety hazards.
Disclosure of Invention
In order to solve the problems in the background art, the utility model adopts the following technical scheme:
a mechanical sensing type hydropower station spindle swing degree detection device comprises a shell, a contact assembly, a transmission assembly, a dial indicator, a displacement sensor and a plurality of reset springs;
the contact assembly comprises a mounting frame, two elastic wheels and a detection head;
the mounting frame is slidably arranged at one end of the shell, and the two elastic wheels are symmetrically arranged and are rotatably arranged at two ends of the outer side of the mounting frame through respective wheel shafts;
the detection head is positioned in the middle of the mounting frame, and a through hole corresponding to the detection head is formed in the middle of the mounting frame;
the transmission assembly is integrally arranged in the shell, and comprises a transmission rod and a sliding table, wherein the sliding table can slide along a preset sliding rail in the shell;
one end of the transmission rod is fixedly connected with the detection head, and the other end of the transmission rod is used for driving the sliding table to slide;
the dial indicator comprises a dial indicator main body and a measuring end, and the dial indicator main body is fixedly arranged at the top of the shell;
the top end of the sliding table is simultaneously contacted with the measuring end of the dial indicator and the displacement sensor;
and the plurality of return springs are used for providing precompression towards the outer ends for the mounting frame and the detection head.
In some embodiments, the detection head comprises a measuring wheel and a measuring wheel carrier, the measuring wheel being rotatably mounted by its axle on the outside of the measuring wheel carrier;
the measuring wheel is used for directly contacting with the main shaft of the hydropower station, and the inner side of the measuring wheel frame is fixedly connected with the transmission rod.
In some embodiments, the device further comprises an adjusting assembly, wherein the adjusting assembly comprises a knob and an adjusting rod which are fixedly connected;
the knob is positioned at one end, far away from the contact assembly, outside the shell;
the adjusting rod extends into the shell through a preset through hole in the shell, and the inner end of the adjusting rod is in contact with the transmission rod;
the part of the adjusting rod in the shell is provided with a threaded section, the middle part of the sliding table is provided with a threaded hole, and the threaded section of the adjusting rod penetrates through the threaded hole of the sliding table and is in threaded fit.
In some embodiments, the number of return springs includes a first return spring and a second return spring;
one end of the first reset spring is limited by the inner side of the mounting frame, and the other end of the first reset spring is limited by the outer wall of the shell;
one end of the second reset spring is limited by one side of the sliding table, which faces the adjusting component, and the other end of the second reset spring is limited by the inner wall of the shell.
In some embodiments, a damping spring, a bearing sleeve, a first bearing, a second bearing and a third bearing are further arranged in the shell;
the thickness of different areas of the transmission rod is different, one end of the transmission rod is a thin rod, the other end of the transmission rod is a thick rod, the end part of the thin rod is fixedly connected with the measuring wheel carrier, and the end part of the thick rod is in contact with the adjusting rod;
the bearing sleeve is fixed in the shell, the first bearing and the second bearing are both fixed in the bearing sleeve, the first bearing is sleeved outside the thin rod, and the second bearing is sleeved outside the thick rod;
the damping spring is integrally arranged in the bearing sleeve and sleeved outside the thin rod, one end of the damping spring is fixed in the bearing sleeve, and the other end of the damping spring is limited by the thick rod;
the third bearing is sleeved outside the adjusting rod, and the third bearing is fixedly arranged at the position where the adjusting rod passes through the shell.
In some embodiments, the first return spring is sleeved outside the slender rod, and the second return spring is sleeved outside the adjusting rod;
the first reset spring, the second reset spring and the damping spring are all in a compression state.
In some embodiments, the displacement sensor comprises a sensor body and a probe;
the sensor main body is fixedly arranged in the shell, and two sides of the top end of the sliding table are respectively contacted with the measuring end of the dial indicator and the probe of the displacement sensor;
the sensor body is also used for connecting with an external oscilloscope or computer.
In some embodiments, the sliding table is fixedly connected with a plurality of sliding blocks and is used for being matched with a plurality of sliding rails preset at corresponding positions in the shell;
the inside of mounting bracket is fixedly connected with a plurality of slider equally, and the corresponding position of casing is preset a plurality of slide rail with the slider complex of mounting bracket equally.
In some embodiments, the bottom end of the housing is also fixedly mounted with a magnetic base.
In some embodiments, the shell is fixedly connected with the magnetic base through a bolt structure;
the shell consists of an upper part and a lower part, and the upper part and the lower part of the shell are fixedly connected through a bolt structure.
Compared with the prior art, the utility model has the beneficial effects that:
according to the mechanical sensing type hydropower station spindle swing degree detection device, the swing degree of the hydropower station spindle is mechanically transmitted and matched with the structures such as the dial indicator and the displacement sensor, so that real-time safety detection of the hydropower station spindle swing degree can be realized, the detection precision and efficiency are improved, the volume is small, the use is convenient, the cost is low, the safety is high, the problems that a traditional detection mode is unsafe and the error is large are solved, and the safety and the stability of the operation of a hydropower station water turbine are improved.
Drawings
FIG. 1 is an external schematic view of a main shaft swing degree detection device of a mechanical sensing hydropower station;
FIG. 2 is a schematic view of a portion of the structure of the interior of the housing;
FIG. 3 is a side view corresponding to FIG. 2;
fig. 4 is a schematic view of a contact assembly.
Reference numerals illustrate: 1. a housing; 2. a contact assembly; 3. a transmission assembly; 4. an adjustment assembly; 5. a dial indicator; 6. a displacement sensor; 7. a slide rail; 8. a slide block; 9. a magnetic base; 10. a bolt structure; 11. a first return spring; 12. a second return spring; 13. a damping spring; 14. a bearing sleeve; 15. a first bearing; 16. a second bearing; 17. a third bearing; 20. a mounting frame; 21. an elastic wheel; 22. a measuring wheel; 23. a measuring wheel frame; 30. a transmission rod; 31. a sliding table; 32. a thin rod; 33. thick rods; 40. a knob; 41. an adjusting rod; 42. a threaded section; 50. a dial indicator body; 51. a measuring end; 60. a sensor body; 61. a probe.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the following further describes how the present utility model is implemented with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-4, the utility model provides a mechanical sensing type hydropower station spindle swing detection device, which comprises a shell 1, a contact assembly 2, a transmission assembly 3, a dial indicator 5, a displacement sensor 6 and a plurality of return springs, wherein the contact assembly is arranged on the shell; the contact assembly 2 comprises a mounting frame 20, two elastic wheels 21 and a detection head; the mounting frame 20 is slidably mounted at one end of the housing 1, and two elastic wheels 21 are symmetrically arranged and rotatably mounted at both ends of the outer side of the mounting frame 20 through respective wheel shafts; the detection head is positioned in the middle of the mounting frame 20, and a through hole corresponding to the detection head is formed in the middle of the mounting frame 20; the transmission assembly 3 is integrally arranged in the shell 1, and the transmission assembly 3 comprises a transmission rod 30 and a sliding table 31, wherein the sliding table 31 can slide along a sliding rail 7 preset in the shell 1; one end of the transmission rod 30 is fixedly connected with the detection head, and the other end is used for driving the sliding table 31 to slide; the dial indicator 5 comprises a dial indicator main body 50 and a measuring end 51, wherein the dial indicator main body 50 is fixedly arranged at the top of the shell 1; the top end of the sliding table 31 is simultaneously contacted with the measuring end 51 of the dial indicator 5 and the displacement sensor 6; a number of return springs are used to provide pre-compression of the mounting frame 20 and the measuring wheel frame 23 towards the outer end.
It can be understood that, because the two elastic wheels 21 are symmetrically arranged, when both are in contact with the main shaft of the hydropower station, the directions of the measuring wheel 22 in the middle and the internal transmission rod 30 are the directions facing the axis of the main shaft, so that the transmission direction of the transmission rod 30 is ensured to be vertical to the radial direction of the main shaft, and the measurement accuracy is improved; further, by providing two elastic wheels 21, the influence of local surface roughness and high-speed rotation of the spindle on measurement accuracy can be reduced.
Preferably, the detection head comprises a measuring wheel 22 and a measuring wheel frame 23, the measuring wheel 22 being rotatably mounted on the outside of the measuring wheel frame 23 by its axle; the measuring wheel 22 is used for directly contacting with a main shaft of the hydropower station, and the inner side of the measuring wheel frame 23 is fixedly connected with a transmission rod 30.
The whole detection head can be made of metal materials. In addition, referring to fig. 3, the inner side of the measuring wheel frame 23 may be a connection shaft structure with a threaded hole, and the transmission rod 30 may be provided with threads on the outer side of the end, so that the measuring wheel frame 23 and the transmission rod 30 are fixedly connected through threaded fit, and the measuring wheel frame 23 and the transmission rod 30 are convenient to assemble and disassemble, and the direction of the measuring wheel 22 is the same as that of the two elastic wheels 21 through the threaded structure, and the measuring wheel 22 and the two elastic wheels 21 can both rotate along with the main shaft of the hydropower station.
Preferably, the mechanical sensing type hydropower station main shaft swing degree detection device also comprises an adjusting component 4, wherein the adjusting component 4 comprises a knob 40 and an adjusting rod 41 which are fixedly connected; the knob 40 is located at an end of the housing 1 remote from the contact assembly 2; the adjusting rod 41 extends into the shell 1 through a preset through hole on the shell 1, and the inner end of the adjusting rod 41 is contacted with the transmission rod 30; the adjusting rod 41 has a threaded section 42 formed at a portion inside the housing 1, a threaded hole is formed at a middle portion of the slide table 31, and the threaded section 42 of the adjusting rod 41 passes through the threaded hole of the slide table 31 and is screwed.
It can be understood that when the knob 40 of the adjusting component 4 is turned, the sliding table 31 can be driven to move back and forth relative to the adjusting rod 41 along the sliding rail 7 through threaded fit, so that the position of the sliding table 31 is finely adjusted, the close contact between the sliding table 31 and the measuring end 51 of the dial indicator 5 is ensured, the pointer position of the dial indicator 5 can be finely adjusted during reading, reading is facilitated, and errors are reduced.
Preferably, the plurality of return springs comprises a first return spring 11 and a second return spring 12; one end of the first return spring 11 is limited by the inner side of the mounting frame 20, and the other end is limited by the outer wall of the shell 1; one end of the second return spring 12 is limited by the sliding table 31 toward one side of the adjusting assembly 4, and the other end is limited by the inner wall of the housing 1.
Preferably, the housing 1 is further provided with a damper spring 13, a bearing housing 14, a first bearing 15, a second bearing 16 and a third bearing 17; the thickness of different areas of the transmission rod 30 is different, one end of the transmission rod 30 is a thin rod 32, the other end is a thick rod 33, the end of the thin rod 32 is fixedly connected with the measuring wheel frame 23, and the end of the thick rod 33 is in contact with the adjusting rod 41; the bearing sleeve 14 is fixed in the shell 1, the first bearing 15 and the second bearing 16 are both fixed in the bearing sleeve 14, the first bearing 15 is sleeved outside the thin rod 32, and the second bearing 16 is sleeved outside the thick rod 33; the damping spring 13 is integrally arranged in the bearing sleeve 14 and sleeved outside the thin rod 32, one end of the damping spring 13 is fixed in the bearing sleeve 14, and the other end is limited by the thick rod 33; the third bearing 17 is sleeved outside the adjusting rod 41, and the third bearing 17 is fixedly arranged at a position where the adjusting rod 41 passes through the shell 1.
Further, the first return spring 11 is sleeved outside the slender rod 32, and the second return spring 12 is sleeved outside the adjusting rod 41; the first return spring 11, the second return spring 12 and the damper spring 13 are all in a compressed state.
It can be understood that, during operation, two elastic wheels 21 contact with the main shaft of the hydropower station, when the main shaft of the hydropower station has a swing degree, the installation frame 20 moves integrally with the two elastic wheels 21, and the first return spring 11 directly provides precompression for the installation frame 20, so that the integral return of the installation frame 20 and the two elastic wheels 21 is realized. Simultaneously, the measuring wheel 22 is also contacted with the main shaft of the hydropower station and moves along with the main shaft, and the second return spring 12 indirectly provides precompression for the measuring wheel frame 23 and the measuring wheel 22 through the sliding table 31, the adjusting rod 41 and the transmission rod 30. The contact assembly 2 can be ensured to be in close contact with the main shaft of the hydropower station under the pre-pressure provided by the first return spring 11 and the second return spring 12, so that the measurement accuracy is ensured. The damping spring 13 provides a reverse acting force for the transmission rod 30, so that the sliding table 31 can be balanced at a certain position corresponding to the middle section of the sliding rail 7, thereby providing a certain adjusting range for the adjusting mechanism 4 and having a damping effect.
In addition, by providing a plurality of bearings, the linear movement of the inner adjusting lever 41 and the transmission rod 30 is advantageously ensured, thereby reducing errors and improving the service life of the device.
Preferably, the displacement sensor 6 comprises a sensor body 60 and a probe 61; the sensor main body 60 is fixedly arranged in the shell 1, and two sides of the top end of the sliding table 31 are respectively contacted with the measuring end 51 of the dial indicator 5 and the probe 61 of the displacement sensor 6; the sensor body 60 is also used to connect to an external oscilloscope or computer.
It can be understood that the dial indicator 5 can reflect the spindle waviness and vibration data in real time; the displacement sensor 6 can transmit the swing degree data of each node of the main shaft to the oscilloscope and feed back the swing degree data in the form of a waveform chart. The combined action of the mechanisms realizes the detection of the swing degree of the main shaft. In addition, referring to fig. 2, the probe 61 of the displacement sensor 6 may be provided with a spring, so that the probe 61 can move and reset within a certain range; the dial indicator 5 is also internally provided with elastic equipment for controlling the automatic resetting of the measuring end 51.
Preferably, the sliding table 31 is fixedly connected with a plurality of sliding blocks 8 and is used for being matched with a plurality of sliding rails 7 preset at corresponding positions in the shell 1; the inner side of the mounting frame 20 is fixedly connected with a plurality of sliding blocks 8, and a plurality of sliding rails 7 matched with the sliding blocks 8 of the mounting frame 20 are also preset at corresponding positions of the shell 1.
Preferably, the bottom end of the housing 1 is also fixedly provided with a magnetic base 9. The magnetic base 9 can adopt the existing switch type magnetic base, when the switch with the switch is turned on, larger magnetic force is generated, and when the device works, the device can be integrally fixed on the metal base beside the main shaft of the hydropower station.
Preferably, the shell 1 is fixedly connected with the magnetic base 9 through a bolt structure 10; the shell 1 is composed of an upper part and a lower part, and the upper part and the lower part of the shell 1 are fixedly connected through a bolt structure 10.
In a specific embodiment, the working flow and principle of the mechanical sensing type hydropower station spindle swing detection device provided by the utility model are as follows:
firstly, the device is integrally placed at a proper position beside a main shaft to be detected, the fixation of the device is completed through the magnetic base 9, and the two elastic wheels 21 and the measuring wheel 22 of the contact assembly 2 are ensured to be contacted with the main shaft and pressed.
The contact assembly 2, the transmission shaft 30, the adjusting assembly 4 and the sliding table 31 move back and forth along with the axis swing degree of the main shaft under the action of a plurality of springs and bearings.
Next, the user operates the knob 40 of the adjusting device 4 to perform fine adjustment, so as to ensure that the top end of the sliding table 31 is well contacted with the dial indicator 5 and the displacement sensor 6, and thus the related data of the main shaft is detected through the dial indicator 5 and the displacement sensor 6; and during fine adjustment, the pointer of the dial indicator 5 can be modulated to swing symmetrically along the center of the scale, so that the reading is convenient, and meanwhile, the intermediate value can be read more accurately through the oscilloscope connected with the displacement sensor 6.
Finally, whether the main shaft swing degree value is in the national standard range is compared by observing data fed back by an external oscilloscope and a dial indicator 5, the swing degree is recorded, and the detection is completed.
According to the mechanical sensing type hydropower station spindle swing degree detection device, the swing degree of the hydropower station spindle is mechanically transmitted and matched with the dial indicator, the displacement sensor and other structures, so that the hydropower station spindle swing degree can be detected without stopping, the detection precision and efficiency are improved, the safety is high, and the problems that a traditional detection mode is unsafe and has large errors are solved.
In summary, the mechanical sensing type hydropower station spindle swing degree detection device provided by the utility model can realize real-time safety detection of the hydropower station spindle swing degree by mechanically transmitting the swing degree of the hydropower station spindle and matching with structures such as a dial indicator, a displacement sensor and the like, improves the detection precision and efficiency, has small volume, is convenient to use, low in cost and high in safety, solves the problems of unsafe and large error of the traditional detection mode, and is beneficial to improving the safety and stability of the operation of a hydropower station water turbine.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (10)
1. The mechanical sensing type hydropower station spindle swing detection device is characterized by comprising a shell (1), a contact assembly (2), a transmission assembly (3), a dial indicator (5), a displacement sensor (6) and a plurality of return springs;
the contact assembly (2) comprises a mounting frame (20), two elastic wheels (21) and a detection head;
the mounting frame (20) is slidably arranged at one end of the shell (1), and the two elastic wheels (21) are symmetrically arranged and are rotatably arranged at two ends of the outer side of the mounting frame (20) through respective wheel shafts respectively;
the detection head is positioned in the middle of the mounting frame (20), and a through hole corresponding to the detection head is formed in the middle of the mounting frame (20);
the transmission assembly (3) is integrally arranged inside the shell (1), the transmission assembly (3) comprises a transmission rod (30) and a sliding table (31), and the sliding table (31) can slide along a sliding rail (7) preset in the shell (1);
one end of the transmission rod (30) is fixedly connected with the detection head, and the other end of the transmission rod is used for driving the sliding table (31) to slide;
the dial indicator (5) comprises a dial indicator main body (50) and a measuring end (51), wherein the dial indicator main body (50) is fixedly arranged at the top of the shell (1);
the top end of the sliding table (31) is simultaneously contacted with the measuring end (51) of the dial indicator (5) and the displacement sensor (6);
a plurality of return springs are used to provide pre-compression of the mounting bracket (20) and the test head towards the outer end.
2. The device for detecting the runout of a main shaft of a mechanically sensed hydropower station according to claim 1, wherein the detecting head comprises a measuring wheel (22) and a measuring wheel frame (23), and the measuring wheel (22) is rotatably mounted on the outer side of the measuring wheel frame (23) through a wheel shaft thereof;
the measuring wheel (22) is used for being in direct contact with a main shaft of the hydropower station, and the inner side of the measuring wheel frame (23) is fixedly connected with the transmission rod (30).
3. The mechanical sensing type hydropower station spindle waving detection device according to claim 2, further comprising an adjusting assembly (4), wherein the adjusting assembly (4) comprises a knob (40) and an adjusting rod (41) which are fixedly connected;
the knob (40) is positioned at one end, far away from the contact assembly (2), of the shell (1);
the adjusting rod (41) extends into the shell (1) through a preset through hole in the shell (1), and the inner end of the adjusting rod (41) is in contact with the transmission rod (30);
the part of the adjusting rod (41) in the shell (1) is provided with a threaded section (42), the middle part of the sliding table (31) is provided with a threaded hole, and the threaded section (42) of the adjusting rod (41) penetrates through the threaded hole of the sliding table (31) and is in threaded fit.
4. A mechanically sensed hydropower station spindle waviness detection device according to claim 3, wherein the number of return springs comprises a first return spring (11) and a second return spring (12);
one end of the first reset spring (11) is limited by the inner side of the mounting frame (20), and the other end of the first reset spring is limited by the outer wall of the shell (1);
one end of the second return spring (12) is limited by the sliding table (31) towards one side of the adjusting component (4), and the other end of the second return spring is limited by the inner wall of the shell (1).
5. The mechanical sensing type hydropower station spindle waviness detection device according to claim 4, wherein a damping spring (13), a bearing sleeve (14), a first bearing (15), a second bearing (16) and a third bearing (17) are further arranged in the shell (1);
the thickness of different areas of the transmission rod (30) is different, one end of the transmission rod (30) is a thin rod (32), the other end of the transmission rod is a thick rod (33), the end part of the thin rod (32) is fixedly connected with the measuring wheel frame (23), and the end part of the thick rod (33) is in contact with the adjusting rod (41);
the bearing sleeve (14) is fixed in the shell (1), the first bearing (15) and the second bearing (16) are both fixed in the bearing sleeve (14), the first bearing (15) is sleeved outside the thin rod (32), and the second bearing (16) is sleeved outside the thick rod (33);
the damping spring (13) is integrally arranged in the bearing sleeve (14) and sleeved outside the thin rod (32), one end of the damping spring (13) is fixed in the bearing sleeve (14), and the other end of the damping spring is limited by the thick rod (33);
the third bearing (17) is sleeved outside the adjusting rod (41), and the third bearing (17) is fixedly arranged at the position where the adjusting rod (41) passes through the shell (1).
6. The mechanical sensing type hydropower station spindle waviness detection device according to claim 5, wherein the first reset spring (11) is sleeved outside the slender rod (32), and the second reset spring (12) is sleeved outside the adjusting rod (41);
the first return spring (11), the second return spring (12) and the damping spring (13) are all in a compressed state.
7. The mechanical sensing hydropower station spindle waviness detection device according to claim 1, wherein the displacement sensor (6) comprises a sensor body (60) and a probe (61);
the sensor main body (60) is fixedly arranged in the shell (1), and two sides of the top end of the sliding table (31) are respectively contacted with the measuring end (51) of the dial indicator (5) and the probe (61) of the displacement sensor (6);
the sensor body (60) is also for connection to an external oscilloscope or computer.
8. The mechanical sensing type hydropower station spindle waviness detection device according to claim 1, wherein the sliding table (31) is fixedly connected with a plurality of sliding blocks (8) and is used for being matched with a plurality of sliding rails (7) preset at corresponding positions in the shell (1);
the inner side of the mounting frame (20) is fixedly connected with a plurality of sliding blocks (8) as well, and a plurality of sliding rails (7) matched with the sliding blocks (8) of the mounting frame (20) are arranged at corresponding positions of the shell (1) as well.
9. The mechanical sensing type hydropower station spindle waviness detection device according to claim 1, wherein a magnetic base (9) is fixedly arranged at the bottom end of the shell (1).
10. The mechanical sensing type hydropower station spindle waviness detection device according to claim 1, wherein the shell (1) is fixedly connected with the magnetic base (9) through a bolt structure (10);
the shell (1) consists of an upper part and a lower part, and the upper part and the lower part of the shell (1) are fixedly connected through a bolt structure (10) as well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321608088.6U CN219996138U (en) | 2023-06-25 | 2023-06-25 | Mechanical sensing type hydropower station spindle swing degree detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321608088.6U CN219996138U (en) | 2023-06-25 | 2023-06-25 | Mechanical sensing type hydropower station spindle swing degree detection device |
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| CN219996138U true CN219996138U (en) | 2023-11-10 |
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| CN202321608088.6U Active CN219996138U (en) | 2023-06-25 | 2023-06-25 | Mechanical sensing type hydropower station spindle swing degree detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553734A (en) * | 2024-01-10 | 2024-02-13 | 国网湖北省电力有限公司技术培训中心 | Central axis deviation sensing mechanism with self-adaption of different axes and diameters |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117553734A (en) * | 2024-01-10 | 2024-02-13 | 国网湖北省电力有限公司技术培训中心 | Central axis deviation sensing mechanism with self-adaption of different axes and diameters |
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