CN115235765B - Ship rolling bearing conventional life test device - Google Patents
Ship rolling bearing conventional life test device Download PDFInfo
- Publication number
- CN115235765B CN115235765B CN202210806431.1A CN202210806431A CN115235765B CN 115235765 B CN115235765 B CN 115235765B CN 202210806431 A CN202210806431 A CN 202210806431A CN 115235765 B CN115235765 B CN 115235765B
- Authority
- CN
- China
- Prior art keywords
- oil
- test
- bearing
- way
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 138
- 238000005096 rolling process Methods 0.000 title claims abstract description 36
- 238000005461 lubrication Methods 0.000 claims abstract description 26
- 210000004907 gland Anatomy 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000001050 lubricating effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 6
- 238000010998 test method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 238000001228 spectrum Methods 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 137
- 239000010687 lubricating oil Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/14—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means
- F16N7/26—Splash lubrication
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a conventional life test device for a ship rolling bearing, which comprises a driving part, a test unit, a loading unit and a lubrication unit, wherein the driving part is connected with the test unit; and simulating according to the actual load working condition of the bearing. Through design test axle and test main shaft, can be applicable to the installation of different size antifriction bearings through the modification to test axle size. Oil ducts are arranged in the bearing seat and the inner end cover, so that the actual running condition of the rolling bearing is completely consistent. The test main shaft is connected with the driving part and provides power for the test device. Two ends of a test main shaft of the test unit are piled to be provided with two test stations. The invention provides a novel conventional life test method and device for a ship rolling bearing, which simulate test parameters such as a load spectrum, a rotating speed spectrum, lubrication, temperature and the like of the ship rolling bearing, and combines the application working conditions of the ship rolling bearing to develop the technical research of the life test of the ship rolling bearing.
Description
Technical Field
The invention relates to a novel conventional life test device for a ship rolling bearing, and belongs to the technical field of ship rolling bearings.
Background
The ship rolling bearing has the characteristics of large size, complex stress, high lubricating oil temperature and the like. At present, aiming at small quantity of bearing test equipment in the country of automobile bearings and rail transit bearings, a mature working condition simulation life test method and device are not established for large-size section ship rolling bearings for axial radial loading test.
The invention provides a novel conventional life test method and device for a ship rolling bearing, which simulate test parameters such as a load spectrum, a rotating speed spectrum, lubrication, temperature and the like of the ship rolling bearing, and combines the application working conditions of the ship rolling bearing to develop the technical research of the life test of the ship rolling bearing.
Disclosure of Invention
The invention relates to a novel conventional life test device for a ship rolling bearing.
The purpose of the invention is realized in the following way: the conventional life test device for the novel rolling bearing is used for the life test of the large-scale rolling bearing. The driving part is used for controlling the variable frequency motor to realize stepless speed change by using the frequency converter and is connected with the transmission system through the V-ribbed belt; the loading unit adopts a novel servo pump hydraulic loading system to realize radial and axial accurate loading of the test bearing, the radial and axial loads born by the test bearing are monitored through an oil pressure sensor, and the sensor and the servo pump form closed-loop control; the lubrication unit adopts a novel rolling bearing lubrication system, and adopts a programmable control system to realize closed-loop control and real-time data monitoring on lubrication flow, pressure and high-temperature heating; the experimental unit comprises a bearing seat 1-1, an inner end cover 1-2, a test shaft 1-3, a screw 1-4, an oil injection cover 1-5, an inner ring gland 1-6, a pull rod 1-7, a limiting block 1-8, a limiting plate 1-9, a test bearing 1-10, a test main shaft 1-11, a shaft head gland 1-12 and an outer ring gland 1-13; the test bearing is sleeved on the test main shaft 1-11 through transition fit, the test main shaft 1-11 is axially compressed by the bearing gland 1-12 through a screw, a flat key is arranged between the test main shaft 1-11 and the test shaft 1-3, an inner ring of the test bearing 1-12 is sleeved on the test shaft (1-3) through interference fit, an inner ring of the test bearing 1-10 is sleeved on the test shaft 1-3 through interference fit, an outer ring of the test bearing 1-10 is sleeved in the bearing seat 1-1 through clearance fit, and the inner end cover 1-2 and the outer ring gland 1-13 are compressed and fixed in the bearing seat 1-1 from two sides through screws; an oil injection cover 1-5 is arranged between the outer ring gland 1-13 and the test bearing 1-10; a limiting plate 1-9 is arranged above the bearing seat 1-1, the bearing seat 1-1 is limited to rotate, swing or axially float through a limiting screw 1-4, and the limiting plate 1-9 is fixedly connected with a lathe bed part through a limiting block 1-8; the bearing seat 1-1 is connected with the loading mechanism through a pull rod 1-7 below the bearing seat. During the test, the driving part and the loading unit apply radial force through the test main shaft 1-11 and drive the outer ring of the test bearing 1-10 through the test shaft 1-3, and the lubricating unit performs oil spraying lubrication on the test bearing 1-10 through the outer ring gland 1-13 and the oil spraying cover 1-5.
Further, the loading unit comprises an oil tank 2-1, a filter 2-2, an oil pump 2-3, a pressure gauge 2-4, a safety valve 2-5, a one-way valve 2-6, an electromagnetic pressure regulating valve 2-7, a two-position two-way valve 2-8, a three-position four-way valve 2-9, a radial oil cylinder 2-10 and an axial oil cylinder 2-11, wherein the oil tank 2-1 stores oil sources, the oil pump 2-3 provides a servo system power source, the filter 2-2 ensures that an oil supply oil way is clean to prevent the oil pump 2-3 from being blocked, the pressure gauge 2-4 monitors oil inlet pressure, the safety valve 2-5 ensures the oil inlet pressure and simultaneously returns redundant oil to the oil tank, the pressure gauge 2-4 and the safety valve 2-5 realize stable oil pressure output, the one-way valve 2-6 prevents backflow of an oil inlet pipeline, and the oil way is divided into a radial loading oil way and an axial loading oil way; the electromagnetic pressure regulating valve 2-7 receives signals to control the oil way to be closed, so as to accurately control the oil supply pressure; the two-position two-way valve 2-8 controls whether pressure monitoring is realized or not; the three-position four-way valve 2-9 realizes forward loading and reverse loading; the radial oil cylinder 2-10 and the axial oil cylinder 2-11 load the radial and axial directions of the rolling bearing.
Further, the lubrication unit comprises an oil tank 3-1, an overflow valve 3-2, a throttle valve 3-3, a flowmeter 3-4, a two-position three-way valve 3-5, a pipeline 3-6, a stop valve 3-7, a test tool 3-8, a thermometer 3-9, a heater 3-10, an air cooler 3-11, a pressure gauge 3-12, a variable frequency pump 3-13, a filter 3-14, a one-way valve 3-15, an oil cooler 3-16 and an oil dipstick 3-17, wherein the oil tank 3-1 stores an oil source, and the oil dipstick 3-17 monitors the oil quantity of the oil tank; the variable frequency pump 3-13 provides an oil inlet power source and an oil return power source for the servo system; the filter 3-14 ensures that the oil supply way is clean and prevents the variable frequency pump from being blocked; the throttle valve 3-3 realizes oil way flow regulation; the flowmeter 3-4 monitors the flow of the oil way; the overflow valve 3-2 fails to regulate the oil way pressure and returns the excessive oil to the oil tank; the pressure gauge 3-12 monitors the pressure of the oil way; the two-position three-way valve 3-5 realizes that the oil way is directly supplied to the test fixture 3-8 or is supplied to the test fixture after heating the oil way. The heater 3-10 regulates the temperature of the oil way, the thermometer 3-9 monitors the temperature, and the stop valve 3-7 is opened to realize the oil way supply after the temperature of the test tool is met; the air cooler 3-11 and the oil cooler 3-16 respectively realize cooling effects on an oil return pipeline and an oil tank, and the check valve 3-15 prevents the oil inlet pipeline from flowing reversely, so that the variable frequency pump is protected.
Compared with the prior art, the invention has the beneficial effects that: the invention simulates according to the actual load condition of the bearing. Through design test axle and test main shaft, can be applicable to the installation of different size antifriction bearings through the modification to test axle size. Oil ducts are arranged in the bearing seat and the inner end cover, so that the actual running condition of the rolling bearing is completely consistent. The test main shaft is connected with the driving part and provides power for the test device.
And simulating according to the actual load working condition of the bearing. Through design test axle and test main shaft, can be applicable to the installation of different size antifriction bearings through the modification to test axle size. Oil ducts are arranged in the bearing seat and the inner end cover, so that the actual running condition of the rolling bearing is completely consistent. The test main shaft is connected with the driving part and provides power for the test device. The oil pump 2-3 provides a power source of a servo system, and the pressure gauge 2-4 and the safety valve 2-5 are adopted to realize stable oil pressure output. Radial oil cylinders and axial oil cylinders 2-10 are adopted to load the radial and axial directions of the rolling bearing, so that the control precision is high and the operation is flexible. The electromagnetic pressure regulating valve 2-7 is adopted to precisely control the oil supply pressure, so that the precise loading of the rolling bearing is realized. And the three-position four-way valve 2-9 is adopted to realize forward loading and reverse loading. Lubrication is provided according to the actual load condition of the bearing. The variable frequency pump 3-13 is adopted in the lubrication system, and the oil supply pressure and the flow in the lubrication system can be respectively adjusted. The lubrication pipeline adopts the heater 3-10 to realize temperature adjustment during oil supply to the bearing. The lubricating system adopts an air cooler 3-11 and an oil cooler 3-16 respectively, and realizes cooling effect on an oil return pipeline and an oil tank respectively.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a diagram of a servo pump loading system of the present invention.
Fig. 3 is a diagram of a lubrication system according to the present invention.
In fig. 1: the test unit comprises: the device comprises a bearing seat 1-1, an inner end cover 1-2, a test shaft 1-3, a screw 1-4, an oil injection cover 1-5, an inner ring gland 1-6, a pull rod 1-7, a limiting block 1-8, a limiting plate 1-9, a test bearing 1-10, a test main shaft 1-11, a shaft head gland 1-12 and an outer ring gland 1-13.
In fig. 2: the loading unit includes: the hydraulic oil pump comprises an oil tank 2-1, a filter 2-2, an oil pump 2-3, a pressure gauge 2-4, a safety valve 2-5, a one-way valve 2-6, an electromagnetic pressure regulating valve 2-7, a two-position two-way valve 2-8, a three-position four-way valve 2-9, a radial oil cylinder 2-10 and an axial oil cylinder 2-11.
In fig. 3: the lubrication unit includes: the oil tank 3-1, the overflow valve 3-2, the throttle valve 3-3, the flowmeter 3-4, the two-position three-way valve 3-5, the pipeline 3-6, the stop valve 3-7, the test tool 3-8, the thermometer 3-9, the heater 3-10, the air cooler 3-11, the pressure gauge 3-12, the variable frequency pump 3-13, the filter 3-14, the one-way valve 3-15, the oil cooler 3-16 and the oil dipstick 3-17.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
The invention comprises four parts of a driving part, a test unit, a loading unit and a lubricating unit, and the simulation is carried out according to the actual load working condition of the bearing. Through design test axle and test main shaft, can be applicable to the installation of different size antifriction bearings through the modification to test axle size. Oil ducts are arranged in the bearing seat and the inner end cover, so that the actual running condition of the rolling bearing is completely consistent. The test main shaft is connected with the driving part and provides power for the test device. Two ends of a test main shaft of the test unit are piled to be provided with two test stations.
① A driving member. The driving part is used for controlling the variable frequency motor by the frequency converter to realize stepless speed change and is connected with the transmission system through the V-ribbed belt.
② And (5) a test unit. Aiming at the size of the large-sized rolling bearing, a special novel large-sized rolling bearing life test tool is designed to be matched with the size section of the test bearing of the project.
③ And a loading unit. The novel servo pump hydraulic loading system is adopted to realize radial and axial accurate loading of the test bearing, the radial and axial loads born by the test bearing are monitored through the oil pressure sensor, and the sensor and the servo pump form closed-loop control to realize accurate control.
④ And a lubrication unit. The novel rolling bearing lubrication system is adopted, and the programmable control system is adopted to realize closed-loop control and real-time data monitoring on lubrication flow, pressure and high-temperature heating. Each pipeline is provided with an independent motor pump set, a flowmeter and other elements so as to realize accurate flow control and meet the requirement of later expansion. The bearing testing machine is heated at high temperature by lubricating oil, and the whole design is integrated and movable. The flow of each set of test bearing can be automatically adjusted, and the computer can display the flow value and automatically control the flow. The pressure of the lubricating oil can be automatically adjusted and displayed by a computer. The heating of the oil lubrication can be automatically controlled by a computer, and the control precision is less than or equal to +/-1.5 ℃. The temperature of the lubricating oil keeps constant temperature, and the oil tank is made of stainless steel. The lubricating oil of the test unit is pumped back to the oil tank by an oil return pump and is matched with an air cooler and a water cooler. The lubricating oil tank and the pipeline are made of stainless steel materials, the compressive strength is more than 4.0MPa, and the lubricating oil tank and the pipeline are externally provided with a heat insulation device and an oil leakage prevention device. The system can simulate lubrication conditions and display oil supply temperature, flow, pressure, oil return temperature, oil tank temperature and the like. The lubricating oil tank is provided with a liquid level sensor and an oil indicator, has alarm indication and signal output functions when the oil quantity of the lubricating oil tank is insufficient, and is provided with a filter, wherein the oil supply pipeline and the oil return pipeline are provided with a flowmeter, a thermometer, a pressure gauge, a valve switch and the like, and the filter is provided with an oil filter blockage alarm device.
The invention relates to a conventional life test method and device for a novel ship rolling bearing. Through design test axle and test main shaft, can be applicable to the installation of different size antifriction bearings through the modification to test axle size. Oil ducts are arranged in the bearing seat and the inner end cover, so that the actual running condition of the rolling bearing is completely consistent. The test main shaft is connected with the driving part and provides power for the test device. Two ends of a test main shaft of the test unit are piled to be provided with two test stations. The test bearing is sleeved on the test main shaft 1-11 through transition fit, and is axially pressed on the test main shaft 1-11 through a bearing gland 1-12 through a screw, and a flat key is arranged between the test main shaft 1-11 and the test shaft 1-3 so as to transmit the rotary motion of the test main shaft 1-11 to the test shaft 1-3. The inner ring of the test bearing 1-12 is sleeved on the test shaft (1-3) through interference fit, the inner ring of the test bearing 1-10 is sleeved on the test shaft 1-3 through interference fit, the outer ring of the test bearing 1-10 is sleeved in the bearing seat 1-1 through clearance fit, and the inner end cover 1-2 and the outer ring gland 1-13 are tightly pressed and fixed in the bearing seat 1-1 from two sides through screws. An oil injection cover 1-5 is arranged between the outer ring gland 1-13 and the test bearing 1-10. A limiting plate 1-9 is arranged above the bearing seat 1-1, the bearing seat 1-1 is limited to rotate, swing or axially float through a limiting screw 1-4, and the limiting plate 1-9 is fixedly connected with a lathe bed part through a limiting block 1-8; the bearing seat 1-1 is connected with the loading mechanism through a pull rod 1-7 below the bearing seat. During test, the driving mechanism drives the outer ring of the test bearing 1-10 through the test spindle 1-11 and the test shaft 1-3 to apply radial force, and the lubricating device performs oil spraying lubrication on the test bearing 1-10 through the outer ring gland 1-13 and the oil spraying cover 1-5.
A loading unit of a novel ship rolling bearing conventional life test method and device: the loading unit comprises an oil tank 2-1, a filter 2-2, an oil pump 2-3, a pressure gauge 2-4, a safety valve 2-5, a one-way valve 2-6, an electromagnetic pressure regulating valve 2-7, a two-position two-way valve 2-8, a three-position four-way valve 2-9, a radial oil cylinder 2-10 and an axial oil cylinder 2-11, wherein the oil tank 2-1 stores oil sources. The oil pump 2-3 provides a power source for the servo system. The filter 2-2 ensures that the oil supply passage is clean and prevents the oil pump 2-3 from being blocked. The pressure gauge 2-4 monitors the oil feed pressure. The relief valve 2-5 ensures the inlet pressure while returning excess oil to the tank. The pressure gauge 2-4 and the safety valve 2-5 are adopted to realize stable oil pressure output. The check valve 2-6 prevents the backflow of the oil inlet pipeline. At this time, the oil paths are divided into radial loading oil paths and axial loading oil paths. The electromagnetic pressure regulating valve 2-7 receives signals to control the oil way to be closed, and the oil supply pressure is accurately controlled. The two-position two-way valve 2-8 controls whether pressure monitoring is achieved. And the three-position four-way valve 2-9 is adopted to realize forward loading and reverse loading. Radial oil cylinders 2-10 and axial oil cylinders 2-11 are adopted to load the rolling bearings radially and axially, so that the control precision is high and the operation is flexible.
A novel ship rolling bearing conventional life test method and a lubricating unit of the device are provided: the lubrication unit comprises an oil tank 3-1, an overflow valve 3-2, a throttle valve 3-3, a flowmeter 3-4, a two-position three-way valve 3-5, a pipeline 3-6, a stop valve 3-7, a test tool 3-8, a thermometer 3-9, a heater 3-10, an air cooler 3-11, a pressure gauge 3-12, a variable frequency pump 3-13, a filter 3-14, a one-way valve 3-15, an oil cooler 3-16 and an oil dipstick 3-17, wherein the oil tank 3-1 stores an oil source, and the oil dipstick 3-17 monitors the oil quantity of the oil tank. The variable frequency pump 3-13 provides an oil inlet power source and an oil return power source for the servo system. The filters 3-14 ensure that the oil supply way is clean and the variable frequency pump is prevented from being blocked. The throttle valve 3-3 realizes oil way flow regulation; the flowmeter 3-4 monitors the flow rate of the oil path. The overflow valve 3-2 fails to regulate the oil way pressure and returns the excessive oil to the oil tank; the pressure gauge 3-12 monitors the pressure of the oil way. The two-position three-way valve 3-5 realizes that the oil way is directly supplied to the test fixture 3-8 or is supplied to the test fixture after heating the oil way. The heater 3-10 is used for adjusting the temperature of the oil way, the thermometer 3-9 is used for monitoring the temperature, and the stop valve 3-7 is opened to realize oil way supply after the temperature of the test tool is met. The lubricating system adopts an air cooler 3-11 and an oil cooler 3-16 respectively, and realizes cooling effect on an oil return pipeline and an oil tank respectively. The one-way valve 3-15 prevents the backflow of the oil inlet pipeline and protects the variable frequency pump.
Claims (1)
1. The utility model provides a conventional life test device of boats and ships antifriction bearing which characterized in that: the device comprises a driving part, a test unit, a loading unit and a lubrication unit, wherein the driving part is used for realizing stepless speed change by controlling a variable frequency motor through a frequency converter, and is connected with a transmission system through a V-ribbed belt; the loading unit adopts a novel servo pump hydraulic loading system to realize radial and axial accurate loading of the test bearing, the radial and axial loads born by the test bearing are monitored through an oil pressure sensor, and the sensor and the servo pump form closed-loop control; the lubrication unit adopts a novel rolling bearing lubrication system, and adopts a programmable control system to realize closed-loop control and real-time data monitoring on lubrication flow, pressure and high-temperature heating; the experimental unit comprises a bearing seat (1-1), an inner end cover (1-2), a test shaft (1-3), a screw (1-4), an oil injection cover (1-5), an inner ring gland (1-6), a pull rod (1-7), a limiting block (1-8), a limiting plate (1-9), a test bearing (1-10), a test main shaft (1-11), a shaft head gland (1-12) and an outer ring gland (1-13); the test bearing is sleeved on the test main shaft (1-11) through transition fit, the test main shaft (1-11) is axially compressed by the bearing gland (1-12) through a screw, a flat key is arranged between the test main shaft (1-11) and the test shaft (1-3), an inner ring of the test bearing (1-12) is sleeved on the test shaft (1-3) through interference fit, an inner ring of the test bearing (1-10) is sleeved on the test shaft (1-3) through interference fit, an outer ring of the test bearing (1-10) is sleeved in the bearing seat (1-1) through clearance fit, and the test main shaft (1-11) and the outer ring gland (1-13) are compressed and fixed in the bearing seat (1-1) from two sides through screws; an oil injection cover (1-5) is arranged between the outer ring gland (1-13) and the test bearing (1-10); a limiting plate (1-9) is arranged above the bearing seat (1-1), the bearing seat (1-1) is limited to rotate, swing or axially float through a limiting screw (1-4), and the limiting plate (1-9) is fixedly connected with the lathe bed part through a limiting block (1-8); the bearing seat (1-1) is connected with the loading mechanism through a pull rod (1-7) below the bearing seat. During the test, the driving part and the loading unit drive the outer ring of the test bearing (1-10) through the test spindle (1-11) and the test shaft (1-3) to apply radial force, and the lubricating unit lubricates the test bearing (1-10) through the outer ring gland (1-13) and the oil spraying cover (1-5) in an oil spraying way;
The loading unit comprises an oil tank (2-1), a filter (2-2), an oil pump (2-3), a pressure gauge (2-4), a safety valve (2-5), a one-way valve (2-6), an electromagnetic pressure regulating valve (2-7), a two-position two-way valve (2-8), a three-position four-way valve (2-9), a radial oil cylinder (2-10) and an axial oil cylinder (2-11), wherein the oil tank (2-1) stores an oil source, the oil pump (2-3) provides a servo system power source, the filter (2-2) ensures that an oil supply oil way is clean and prevents the oil pump (2-3) from being blocked, the pressure gauge (2-4) monitors the oil inlet pressure, the safety valve (2-5) ensures that the oil inlet pressure returns excessive oil to the oil tank at the same time, and the pressure gauge (2-4) and the safety valve (2-5) realize stable oil pressure output, and the one-way valve (2-6) prevents the oil inlet pipeline from flowing reversely, and the oil way is divided into a radial loading oil way and an axial loading oil way; the electromagnetic pressure regulating valve (2-7) receives signals to control the oil way to pass through and close, so as to accurately control the oil supply pressure; the two-position two-way valve (2-8) controls whether the pressure monitoring is realized; the three-position four-way valve (2-9) realizes forward loading and reverse loading; the radial oil cylinder (2-10) and the axial oil cylinder (2-11) load the radial and axial directions of the rolling bearing;
The lubrication unit comprises an oil tank (3-1), an overflow valve (3-2), a throttle valve (3-3), a flowmeter (3-4), a two-position three-way valve (3-5), a pipeline (3-6), a stop valve (3-7), a test tool (3-8), a thermometer (3-9), a heater (3-10), an air cooler (3-11), a pressure gauge (3-12), a variable frequency pump (3-13), a filter (3-14), a one-way valve (3-15), an oil cooler (3-16) and an oil dipstick (3-17), wherein the oil tank (3-1) stores an oil source, and the oil dipstick (3-17) monitors the oil quantity of the oil tank; the variable frequency pump (3-13) provides an oil inlet power source and an oil return power source for the servo system; the filters (3-14) ensure the cleaning of the oil supply way to prevent the blockage of the variable frequency pump; the throttle valve (3-3) realizes oil way flow regulation; the flowmeter (3-4) monitors the flow of the oil way; the overflow valve (3-2) fails to regulate the oil way pressure and returns the excessive oil to the oil tank; the pressure gauge (3-12) monitors the pressure of the oil way; the two-position three-way valve (3-5) realizes that the oil way is directly supplied to the test tool (3-8) or is supplied to the test tool after heating the oil way. The heater (3-10) regulates the temperature of the oil way, the thermometer (3-9) monitors the temperature, and the stop valve (3-7) is opened to realize the oil way supply after the temperature of the test tool is met; the air cooler (3-11) and the oil cooler (3-16) respectively realize cooling effects on an oil return pipeline and an oil tank, and the check valve (3-15) prevents the oil inlet pipeline from flowing reversely, so that the variable frequency pump is protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210806431.1A CN115235765B (en) | 2022-07-10 | 2022-07-10 | Ship rolling bearing conventional life test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210806431.1A CN115235765B (en) | 2022-07-10 | 2022-07-10 | Ship rolling bearing conventional life test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115235765A CN115235765A (en) | 2022-10-25 |
| CN115235765B true CN115235765B (en) | 2024-07-16 |
Family
ID=83672058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210806431.1A Active CN115235765B (en) | 2022-07-10 | 2022-07-10 | Ship rolling bearing conventional life test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115235765B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699242A (en) * | 2009-10-27 | 2010-04-28 | 苏州轴承厂有限公司 | Accelerated rolling bearing fatigue life tester |
| CN107328577A (en) * | 2017-07-01 | 2017-11-07 | 山东湖西王集团有限公司 | Rolling bearing life testing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443876C (en) * | 2006-07-13 | 2008-12-17 | 杭州轴承试验研究中心有限公司 | Reinforced test machine for rolling bearing life and reliability and its test method |
| CN112557037B (en) * | 2020-11-30 | 2022-03-11 | 南京工业大学 | Accelerated life test method for wind power main shaft bearing model |
-
2022
- 2022-07-10 CN CN202210806431.1A patent/CN115235765B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699242A (en) * | 2009-10-27 | 2010-04-28 | 苏州轴承厂有限公司 | Accelerated rolling bearing fatigue life tester |
| CN107328577A (en) * | 2017-07-01 | 2017-11-07 | 山东湖西王集团有限公司 | Rolling bearing life testing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115235765A (en) | 2022-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108709743B (en) | Water lubrication bearing comprehensive performance experiment table | |
| CN107328572B (en) | Multifunctional high-power automatic hydraulic transmission complete machine test device | |
| CN111426475A (en) | Main shaft bearing impact test platform | |
| CN109540518B (en) | Petrochemical unit bearing fault diagnosis and residual life prediction device and control circuit thereof | |
| CN101699244B (en) | Transonic contra-rotating turbine test rig | |
| CN103089749A (en) | Portable intelligent hydraulic loading device | |
| CN202612229U (en) | Hydraulic ultra-high boosting system | |
| CN115235765B (en) | Ship rolling bearing conventional life test device | |
| CN107366602A (en) | Cooling circulating water energy-saving power generation system | |
| CN210400850U (en) | Gear fatigue test bench | |
| CN205748889U (en) | Swivel joint life test rack is used in a kind of fluid conveying | |
| CN110631942B (en) | Friction wear testing machine with trace lubrication system for simulating high-temperature and high-pressure environment | |
| CN202219328U (en) | Central water outlet and automatic tool releasing device for numerical control gantry involute spline type spindle | |
| CN204882072U (en) | High -speed load dynamic pressure test system | |
| CN102607843B (en) | Improved hydraulic oil circuit structure for marine gearbox test bench and operating method for improved hydraulic oil circuit structure | |
| CN107559051B (en) | Steam turbine shaft seal first-gear steam leakage amount adjusting system and adjusting method thereof | |
| CN114593906A (en) | Reliability test equipment for shafting end face sealing device for ship | |
| CN109848348B (en) | Numerical control direct-drive type electric screw press | |
| CN108533726B (en) | Gear box rapid following lubricating and cooling system and lubricating and cooling control method | |
| CN215409365U (en) | Compressor unit barring frock | |
| CN210889109U (en) | Flow-adjustable throttling orifice | |
| CN209432420U (en) | Automobile transmission oil pump pump oil simulator and simulation system | |
| CN207439666U (en) | Field rotary blade test system | |
| CN214392610U (en) | Full-automatic cold cutting device for pipeline cutting | |
| CN112705785B (en) | Full-automatic cold cutting device for pipeline cutting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |