CN210487269U - Tilting pad sliding bearing test box and test bench - Google Patents
Tilting pad sliding bearing test box and test bench Download PDFInfo
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- CN210487269U CN210487269U CN201921678026.6U CN201921678026U CN210487269U CN 210487269 U CN210487269 U CN 210487269U CN 201921678026 U CN201921678026 U CN 201921678026U CN 210487269 U CN210487269 U CN 210487269U
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- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 239000003921 oil Substances 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 239000011888 foil Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000010687 lubricating oil Substances 0.000 claims abstract description 7
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 230000001052 transient effect Effects 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses a tilting pad slide bearing test box and test bench, including the bearing test box, the bearing test box includes box, the hollow input shaft of support on the box, fixes the sliding bearing seat in the box through fixed steel cable, installs on the sliding bearing seat and the cover establish the tilting pad slide bearing outside the hollow input shaft, apply the hydraulic pressure loader of load for the sliding bearing seat, inlay the foil gage film of the outer disc wall of hollow input shaft, fix in hollow input shaft and pass through the wireless strain node that the wire links to each other with the foil gage film and pour into the oiling device of lubricating oil into for the sliding bearing seat. The test bench comprises a hydraulic controller, a high-frequency collector, a rotating speed measuring device, a frequency converter, a test computer, a driving motor, a torque meter, a speed increasing box and a bearing test box which are sequentially connected in a transmission manner, and transient pressure and distribution of oil films of the tilting pad sliding bearings under different rotating speeds and load working conditions can be realized through the test platform.
Description
Technical Field
The utility model belongs to the technical field of the test bench, especially, relate to a tilting pad slide bearing test box and test bench.
Background
The sliding bearing test bed can be divided into a positive type and a negative type from the installation mode.
The upright experimental bench is characterized in that an experimental bearing is taken as two end supporting bearings of a main shaft, an auxiliary rolling bearing is taken as a middle loading bearing, the purpose of the upright experimental bearing experiment is to simulate the vibration response characteristic of the experimental bearing tested by an actual engineering environment, and the vibration damping performance of the experimental bearing is further tested by comparing with a common round bearing. Firstly, a working environment of a stably running rotating main shaft is built, secondly, the experimental bearing is controlled to move relative to the main shaft through a loading device so as to realize the generation of oil film bearing capacity, then, the load and the rotating speed are controlled to meet different experimental working condition requirements, and further, the performances of the experimental bearing, such as oil film temperature rise, oil film pressure, rigidity coefficient, damping coefficient and the like, are researched.
The inverted experiment table takes an experiment bearing as a loading bearing and an auxiliary rolling bearing as supporting bearings at two ends of a main shaft, and the inverted experiment aims at testing the basic performance of the experiment bearing: bearing coefficient, temperature rise, eccentricity, rigidity coefficient, damping coefficient and the like. The experimental platform simulates an industrial large-scale rotating mechanical structure to build a floating supporting rotor system, then controls a rolling loading bearing to load a main shaft so as to realize the generation of bearing capacity, then controls the load and the rotating speed to meet different experimental working condition requirements, and further researches and detects the dynamic characteristics of the rotor system and the vibration damping performance of two experimental bearings.
Above-mentioned two kinds of laboratory benches are present common slide bearing laboratory benches, and its difference mainly is that experimental bearing installs at both ends or installs the loading position in the middle, and these two kinds of laboratory benches are similar on the installation pressure sensor mode at present, all install on slide bearing's tile, and to the slide bearing of fixed tile, this mode can satisfy the test demand. However, the tilting pad sliding bearing has problems that the tile of the tilting pad sliding bearing is floating, and the signal line of the pressure sensor can affect the motion state of the tile, so that the thickness of an oil film is changed, and the tested oil film pressure is interfered.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a tilting pad slide bearing test box and test bench for measuring tilting pad slide bearing oil film transient pressure and distribution under different rotational speeds, the load operating mode.
The utility model discloses the technical scheme who adopts as follows: the utility model provides a tilting pad slide bearing test box, includes the bearing test box, the bearing test box includes the box, supports hollow input shaft on the box, fixes the sliding bearing seat in the box through fixed steel cable, install on the sliding bearing seat and the cover establish the tilting pad slide bearing outside hollow input shaft, apply the hydraulic pressure loader of load for the sliding bearing seat, inlay the foil gage film of the excircle wall of hollow input shaft, fix in hollow input shaft and pass through the wireless strain node that the wire links to each other with the foil gage film, and pour into the oiling device of lubricating oil into for the sliding bearing seat.
Furthermore, a base of the hydraulic loader is fixed on the box body, and a loading end of the hydraulic loader is fixedly connected with the top of the sliding bearing seat.
Furthermore, the oil injection device is a hydraulic pump, and the hydraulic pump injects lubricating oil into the sliding bearing seat through an oil pipe.
Furthermore, the device also comprises a rotating speed measuring device for detecting the rotating speed of the hollow input shaft.
Furthermore, the rotating speed measuring device comprises a gear and a Hall sensor for sensing the rotating speed of the gear, and the gear is installed at the rear end of the hollow input shaft.
The second objective of the utility model is to provide a tilting pad sliding bearing test bench, including hydraulic controller, high frequency collector, rotational speed measuring device, converter, test computer and driving motor, torsionmeter, acceleration rate case and the bearing test box that the transmission connects in proper order, the bearing test box is foretell tilting pad sliding bearing test box, hydraulic controller links to each other with the hydraulic pressure loader, and the high frequency collector links to each other with torsionmeter and rotational speed measuring device respectively, and the converter links to each other with driving motor, hydraulic controller, high frequency collector and converter all link to each other with the test computer, and wireless strain node and test computer pass through radio signal and connect.
Furthermore, the speed increasing box comprises a speed increasing box body, an input shaft, a first gearwheel, a first pinion, a first rotating shaft, a second gearwheel, a second pinion, a second rotating shaft, a third pinion and an output shaft; the input shaft, the first rotating shaft, the second rotating shaft and the output shaft are all supported on the speed increasing box body, the input shaft and the output shaft are coaxially arranged, the first big gear is fixedly installed on the input shaft, the first small gear and the second big gear are both fixedly installed on the first rotating shaft, the second small gear is sleeved on the second rotating shaft, the third small gear is fixedly installed on the output shaft, the first big gear and the first small gear are in meshing transmission, and the second big gear, the second small gear and the third small gear are in meshing transmission in sequence.
Furthermore, the driving motor is connected with the torque meter through a first coupler, the torque meter is connected with the speed increasing box through a second coupler, and the hollow input shaft is connected with the speed increasing box through a third coupler.
Furthermore, the rotating speed measuring device comprises a gear and a Hall sensor for sensing the rotating speed of the gear, and the gear is installed at the rear end of the hollow input shaft.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. because tilting pad slide bearing's tile is in the floating condition, is unfavorable for installing pressure sensor, the utility model discloses a foil gage film inlays on the outer disc wall of hollow input shaft, and the foil gage film passes through the wire with wireless strain node to be connected, implants the hollow input shaft with wireless strain node inside again, passes to the test computer through the strain data that radio signal produced oil film pressure, through demarcation and conversion test oil film transient pressure value and pressure distribution state.
2. The utility model discloses utilize the design of acceleration rate case, promote the required high rotational speed of test with the driving motor rotational speed, utilize the real-time rotational speed value of torquemeter, gear and hall sensor monitoring driving motor output torque and hollow input shaft, utilize hydraulic controller and hydraulic pressure loader to realize the accurate loading of load, different rotational speeds, load operating mode are realized to above-mentioned design.
3. The utility model discloses utilize fixed steel cable to install sliding bearing seat in the bearing test box, because the steel cable has fine pliability, can eliminate the high-frequency vibration that transmission system produced, avoid arousing the change of slide bearing oil film thickness because the vibration to guarantee oil film pressure test's accuracy.
4. The utility model discloses all collect a test computer with converter, high frequency acquisition instrument and hydraulic controller's signal, be convenient for carry out the information of driving motor, hydraulic pressure loader, torque meter, hall sensor and wireless strain node with the platform processing, guarantee the uniformity of information.
Drawings
FIG. 1 is a schematic view of a bearing test housing;
FIG. 2 is a schematic diagram of a wireless strain node installation;
FIG. 3 is a schematic structural diagram of the test bed of the present invention;
FIG. 4 is a block diagram of the speed increasing box;
in the figure: the device comprises a driving motor 1, a first coupler 2, a torque meter 3, a second coupler 4, a speed increasing box 5, a third coupler 6, a hollow input shaft 7, a hydraulic loader 8, a fixed steel cable 9, a wireless strain node 10, a gear 11, a Hall sensor 12, a tilting pad sliding bearing 13, a sliding bearing seat 14, a bearing test box 15, a hydraulic pump 16, a hydraulic controller 17, a high-frequency collector 18, a test computer 19 and a frequency converter 20; the device comprises an input shaft 21, a first large gear 22, a first small gear 23, a first rotating shaft 24, a second large gear 25, a second small gear 26, a second rotating shaft 27, a third small gear 28, an output shaft 29, a strain gauge film 30, lubricating oil 31 and a lead 32.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. In the following description and in the drawings, the same numbers in different drawings identify the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims. Various embodiments of the present description are described in an incremental manner.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions referred to as "first", "second", etc. in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Example 1:
as shown in fig. 1 and 2, the utility model provides a tilting pad sliding bearing test box, including bearing test box 15, bearing test box 15 includes the box, supports hollow input shaft 7 on the box, fixes the sliding bearing seat 14 in the box through fixed steel cable 9, installs on sliding bearing seat 14 and the cover establishes tilting pad sliding bearing 13 outside hollow input shaft 7, the hydraulic pressure loader 8 of applying load for sliding bearing seat 14, inlay foil gage film 30 at the outer disc wall of hollow input shaft 7, fix in hollow input shaft 7 and pass through the wireless strain node 10 that wire 32 links to each other with foil gage film 30, and pour into the oiling device of lubricating oil 31 for sliding bearing seat 14.
Because the fixed steel cable 9 has good flexibility, high-frequency vibration generated by a transmission system can be eliminated, and the change of the thickness of an oil film of the tilting pad sliding bearing 13 caused by vibration is avoided, so that the accuracy of oil film pressure testing is ensured.
The strain gauge film 30 is embedded in the outer circumferential wall of the hollow input shaft 7 (namely, a groove is firstly lathed on the outer circumferential wall of the hollow input shaft 7, a hole is formed in the groove, the hole penetrates through the side wall of the hollow input shaft 7 and is used for a lead 32 to pass through, and then the strain gauge film 30 is pasted in the groove), so that the whole-circumference oil film pressure distribution of the tilting pad sliding bearing 13 can be measured through the strain gauge film 30.
The wireless strain node 10 fixed in the hollow input shaft 7 and connected with the strain gauge film 30 through the lead 32 is beneficial to transmitting the signal of the strain gauge film 30 to the test computer 19 in a wireless mode when the hollow input shaft 7 rotates at a high speed. The wireless strain node 10 may be, but is not limited to, an SG403/SG404 wireless strain node of beijing bibiko technologies, ltd.
In the embodiment of the application, the base of the hydraulic loader 8 is fixed on the box body, the hydraulic loader 8 is integrated by a hydraulic pump and a hydraulic cylinder, the loading end of the hydraulic loader 8 is fixedly connected with the top of the sliding bearing seat 14, and the sliding bearing seat 14 is loaded by the hydraulic loader 8.
In the embodiment of the present application, the oil injection device is a hydraulic pump 16, and the hydraulic pump 16 injects lubricating oil 31 into the sliding bearing seat 14 through an oil pipe.
In the embodiment of the present application, a rotational speed measuring device for detecting the rotational speed of the hollow input shaft 7 is further included. Further, the rotating speed measuring device comprises a gear 11 and a hall sensor 12 for sensing the rotating speed of the gear, wherein the gear 11 is arranged at the rear end of the hollow input shaft 7.
Example 2:
as shown in fig. 3, the utility model provides a tilting pad sliding bearing 13 test bench still, including hydraulic controller 17, high frequency collector 18, rotational speed measuring device, converter 20, test computer 19 and driving motor 1, torquemeter 3, acceleration box 5 and the bearing test box 15 that the transmission connects gradually, bearing test box 15 is embodiment 1's tilting pad sliding bearing 13 test box, hydraulic controller 17 links to each other with hydraulic pressure loader 8, and high frequency collector 18 links to each other with torquemeter 3 and rotational speed measuring device respectively, and converter 20 links to each other with driving motor 1, hydraulic controller 17, high frequency collector 18 and converter 20 all link to each other with test computer 19, and wireless strain node 10 and test computer 19 pass through radio signal and connect.
In the embodiment of the present application, the speed increasing box 5 is designed to increase the rotation speed of the driving motor 1 to a high rotation speed required by the test, as shown in fig. 4, the speed increasing box 5 includes a speed increasing box 5 body, an input shaft 21, a first gearwheel 22, a first pinion 23, a first rotating shaft 24, a second gearwheel 25, a second pinion 26, a second rotating shaft 27, a third pinion 28, and an output shaft 29; the input shaft 21, the first rotating shaft 24, the second rotating shaft 27 and the output shaft 29 are all supported on the speed increasing box 5, the input shaft 21 and the output shaft 29 are coaxially arranged, the first large gear 22 is fixedly installed on the input shaft 21, the first small gear 23 and the second large gear 25 are both fixedly installed on the first rotating shaft 24, the second small gear 26 is sleeved on the second rotating shaft 27, the third small gear 28 is fixedly installed on the output shaft 29, the first large gear 22 and the first small gear 23 are in meshing transmission, and the second large gear 25, the second small gear 26 and the third small gear 28 are in meshing transmission in sequence.
In the embodiment of the application, the driving motor 1 is connected with the torquemeter 3 through the first coupler 2, the torquemeter 3 is connected with the speed increasing box 5 through the second coupler 4, and the hollow input shaft 7 is connected with the speed increasing box 5 through the third coupler 6, so that the mode is convenient for equipment installation, debugging and maintenance.
In the embodiment of the present application, the rotation speed measuring device includes a gear installed at the rear end of the hollow input shaft 7 and a hall sensor 12 sensing the rotation speed of the gear.
The utility model also provides a tilting pad slide bearing 13 test bench's test method, this method realizes in foretell test bench, and this method includes following step:
(1) the testing computer 19 controls the rotating speed of the driving motor 1 through the frequency converter 20, and the power of the driving motor 1 is finally input to the hollow input shaft 7 of the bearing testing box 15 through the torquemeter 3 and the speed increasing box 5 in sequence;
(2) the torquemeter 3 collects the output torque data of the driving motor 1 in real time, the rotating speed measuring device collects the real-time rotating speed data of the hollow input shaft 7 in real time, the torquemeter 3 and the rotating speed measuring device transmit the collected data to the high-frequency collector 18, and the high-frequency collector 18 transmits the data to the testing computer 19; the wireless strain node 10 acquires oil film pressure data through the strain gauge film 30 and transmits the data to the test computer 19 in a wireless manner;
(3) the test computer 19 controls the hydraulic loader 8 through the hydraulic controller 17, and the hydraulic loader 8 applies accurate load to the sliding bearing seat 14, so that transient pressure and distribution of an oil film of the tilting pad sliding bearing 13 under different rotating speeds and load working conditions are realized.
The above detailed description is intended to illustrate and not limit the present invention, and any modifications and changes made within the spirit of the present invention and the scope of the appended claims fall within the scope of the present invention.
Claims (9)
1. The utility model provides a tilting pad slide bearing test box, its characterized in that, includes the bearing test box, the bearing test box includes the box, supports hollow input shaft on the box, fixes the sliding bearing seat in the box through fixed steel cable, install on the sliding bearing seat and the cover establish the tilting pad slide bearing outside the hollow input shaft, apply the hydraulic pressure loader of load for the sliding bearing seat, inlay the foil gage film of hollow input shaft excircle wall, fix in hollow input shaft and pass through the wireless strain node that the wire links to each other with the foil gage film, and pour into the oiling device of lubricating oil into for the sliding bearing seat.
2. The tilting pad sliding bearing test box according to claim 1, wherein the base of the hydraulic loader is fixed on the box body, and the loading end of the hydraulic loader is fixedly connected with the top of the sliding bearing seat.
3. A tilting pad sliding bearing test box according to claim 1 wherein said oil injection means is a hydraulic pump.
4. A tilting pad sliding bearing test box according to claim 1 further comprising a rotation speed measuring means for detecting the rotation speed of the hollow input shaft.
5. A tilting pad sliding bearing test box according to claim 4, wherein said rotation speed measuring means comprises a gear and a Hall sensor sensing the rotation speed of the gear, the gear being mounted at the rear end of the hollow input shaft.
6. The utility model provides a tilting pad sliding bearing test bench, its characterized in that includes hydraulic controller, high frequency collector, rotational speed measuring device, converter, test computer and driving motor, torquemeter, acceleration rate case and the bearing test box that transmission connects gradually, the bearing test box be any claim 1-3 tilting pad sliding bearing test box, hydraulic controller links to each other with hydraulic pressure loader, and high frequency collector links to each other with torquemeter and rotational speed measuring device respectively, and the converter links to each other with driving motor, hydraulic controller, high frequency collector and converter all link to each other with the test computer, and wireless strain node and test computer pass through wireless signal and connect.
7. The tilting pad sliding bearing test box according to claim 6, wherein said speed increasing box comprises a speed increasing box body, an input shaft, a first gearwheel, a first pinion, a first rotating shaft, a second gearwheel, a second pinion, a second rotating shaft, a third pinion and an output shaft; the input shaft, the first rotating shaft, the second rotating shaft and the output shaft are all supported on the speed increasing box body, the input shaft and the output shaft are coaxially arranged, the first big gear is fixedly installed on the input shaft, the first small gear and the second big gear are both fixedly installed on the first rotating shaft, the second small gear is sleeved on the second rotating shaft, the third small gear is fixedly installed on the output shaft, the first big gear and the first small gear are in meshing transmission, and the second big gear, the second small gear and the third small gear are in meshing transmission in sequence.
8. The tilting pad sliding bearing test bench of claim 6, wherein the driving motor and the torque meter are coupled through a first coupling, the torque meter and the speed increasing box are coupled through a second coupling, and the hollow input shaft and the speed increasing box are coupled through a third coupling.
9. The tilting pad sliding bearing test bench according to claim 6, wherein the rotation speed measuring device comprises a gear and a Hall sensor for sensing the rotation speed of the gear, and the gear is mounted at the rear end of the hollow input shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921678026.6U CN210487269U (en) | 2019-10-09 | 2019-10-09 | Tilting pad sliding bearing test box and test bench |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921678026.6U CN210487269U (en) | 2019-10-09 | 2019-10-09 | Tilting pad sliding bearing test box and test bench |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542556A (en) * | 2019-10-09 | 2019-12-06 | 浙江申发轴瓦股份有限公司 | A tilting pad sliding bearing test box, test bench and test method |
| CN114001960A (en) * | 2021-10-29 | 2022-02-01 | 浙江申发轴瓦股份有限公司 | Inverted tilting pad sliding bearing test bed |
| CN114323645A (en) * | 2020-09-25 | 2022-04-12 | 株洲中车时代电气股份有限公司 | Traction motor bearing testing machine |
-
2019
- 2019-10-09 CN CN201921678026.6U patent/CN210487269U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542556A (en) * | 2019-10-09 | 2019-12-06 | 浙江申发轴瓦股份有限公司 | A tilting pad sliding bearing test box, test bench and test method |
| CN110542556B (en) * | 2019-10-09 | 2025-04-25 | 浙江申发轴瓦股份有限公司 | A tilting pad sliding bearing test box, test bench and test method |
| CN114323645A (en) * | 2020-09-25 | 2022-04-12 | 株洲中车时代电气股份有限公司 | Traction motor bearing testing machine |
| CN114323645B (en) * | 2020-09-25 | 2023-03-10 | 株洲中车时代电气股份有限公司 | Traction motor bearing testing machine |
| CN114001960A (en) * | 2021-10-29 | 2022-02-01 | 浙江申发轴瓦股份有限公司 | Inverted tilting pad sliding bearing test bed |
| CN114001960B (en) * | 2021-10-29 | 2023-12-12 | 浙江申发轴瓦股份有限公司 | Inverted tilting pad sliding bearing test bed |
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