CN114459744B - Running-in test device applicable to dynamic seal at high speed for long time - Google Patents
Running-in test device applicable to dynamic seal at high speed for long time Download PDFInfo
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- CN114459744B CN114459744B CN202210099794.6A CN202210099794A CN114459744B CN 114459744 B CN114459744 B CN 114459744B CN 202210099794 A CN202210099794 A CN 202210099794A CN 114459744 B CN114459744 B CN 114459744B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses a running-in test device suitable for dynamic seal at high speed and for a long time, which comprises a protective shell (1), a control system (2) arranged on the outer surface of the protective shell (1) and a running-in test tool arranged in the protective shell (1); the running-in test tool comprises a hydraulic system (3), a driving system (4), a piston rod rotating device (5), a low-temperature test box (6), a base (7), a movable working platform A (8), a movable working platform B (9), a length measuring system (10), a damping measuring system (11), a fixed working platform (12) and a lateral loading system (13). The invention adopts a plurality of measures at the same time, so that the equipment has certain expansion characteristics, is suitable for running-in tests of various types, can be used as a general pressure test platform, and is suitable for tests of various test pieces.
Description
Technical Field
The invention relates to the field of running-in tests, in particular to a running-in test device suitable for dynamic seal at high speed for a long time.
Background
In general, after the important kinematic pair assembly of engineering machinery is disassembled, maintained and reassembled, necessary running-in tests are required, and the purpose of the running-in tests is to improve the surface roughness of parts, discover abnormal phenomena such as pressure, vibration, noise, temperature, leakage and the like and eliminate faults. Practice proves that the running-in test bed of the engineering machinery assembly is an important means for reducing the early failure rate of engineering machinery, improving the maintenance quality and prolonging the service life, and is one of the necessary equipment for specialized maintenance.
The existing device for running-in test has a slow running-in speed. When the traditional running-in test bed carries out running-in test, complicated parameter debugging and manual operation are often needed, and the working efficiency is lower. Meanwhile, the traditional running-in test bed can only test products with uniform specifications, has limitation, and cannot meet tested workpieces with various specifications.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a running-in test device applicable to dynamic seal at high speed for a long time.
The aim of the invention is realized by the following technical scheme:
the utility model provides a be applicable to dynamic seal high-speed and long-time running-in test device, includes the protective housing, sets up the control system and the running-in test frock of setting in the protective housing at the protective housing surface;
the running-in test tool comprises a hydraulic system, a driving system, a piston rod rotating device, a low-temperature test box, a base, a movable working platform A, a movable working platform B, a length measuring system, a damping measuring system, a fixed working platform and a lateral loading system;
the movable working platform A, the movable working platform B and the fixed working platform are respectively arranged on the base; the fixed workbench is fixed at the middle end of the upper surface of the base;
the movable working platform A and the movable working platform B are respectively arranged at two sides of the fixed working platform and are fixed on the base through sliding rails;
the driving system is arranged on the base at one side of the movable working platform A and is connected with the movable working platform A;
the length measurement system is arranged on the base and abuts against the sliding rail of the movable working platform A;
the hydraulic system is arranged on one side of the base and is connected with the lateral loading system through a pipeline;
the piston rod rotating device is arranged on the movable working platform A;
the low-temperature test box and the lateral loading system are arranged on a fixed working platform;
the test workpiece passes through the low-temperature test chamber and the lateral loading system, one end of the test workpiece is connected with the piston rod rotating device through the damping measuring system, and the other end of the test workpiece is connected with the movable working platform B.
The protective shell comprises a sliding door, and a transparent bulletproof glass PC plate is arranged on the sliding door.
The control system comprises a touch screen, an industrial personal computer, a PLC controller and a water cooler;
the water cooler is connected with the PLC;
the PLC controller comprises a communication module, an input/output module, a DI/DO module and an analog quantity module;
the touch screen is connected with one end of the industrial personal computer, and the other end of the industrial personal computer is connected with the PLC;
one end of the linear motor is connected with the length measuring system, and the other end of the linear motor is connected with the PLC;
the length measurement system is connected with the communication module;
the analog quantity module is respectively connected with the length measuring system, the temperature sensor and the pressure sensor.
The base is of a cuboid structure, a groove convenient for installing the sliding rail is formed in the upper surface of the base, and the sliding rail is installed at the protruding parts at two ends of the groove; the bottom of the base is provided with an adjusting sizing block and is fixed on the ground through an anchor bolt.
The driving system comprises a linear motor primary part and a linear motor secondary part, wherein the linear motor primary part is arranged at the upper end of the linear motor secondary part and is connected with the bottom end of the movable working platform A.
The movable working platform A comprises a connecting plate, a fixed seat A and a connecting seat A; the fixing seat A is provided with a T-shaped groove, the fixing seat A is arranged on the connecting plate, and the bottom end of the connecting seat A is fixed on the fixing seat A through the T-shaped groove.
The mobile working platform B comprises a connecting seat B, a connecting rotating seat and a fixing seat B; the fixed seat B is provided with a T-shaped groove; the connecting seat B is fixedly connected with the connecting rotating seat; the bottom end of the connecting rotating seat is fixed on the fixed seat through a T-shaped groove.
The piston rod rotating device comprises a servo motor and a speed reducer; the servo motor is connected with the speed reducer; the speed reducer is fixed on the movable working platform A through the connecting seat A.
The side loading system comprises a hydraulic cylinder and a tension pressure sensor which are connected with each other; the hydraulic cylinder and the tension and pressure sensor are fixed on the fixed working platform through the bracket.
The invention has the beneficial effects that:
1. the invention adopts a plurality of measures at the same time, so that the equipment has certain expansion characteristics to adapt to running-in tests of various types, test pieces can be quickly replaced, and the invention can be used as a general pressure test platform to adapt to the tests of various test pieces;
2. the invention is more intelligent, and can manually and quickly set various indexes such as stroke, pressure, speed, temperature, running-in times and the like. The system can automatically operate, when the set operation times are reached, the system can automatically stop, and when the conditions of over-high oil temperature, over-low liquid level, abnormal temperature and the like occur, the system can automatically alarm and pause the operation of equipment, so that unattended operation can be realized;
3. the invention can detect loading pressure, running damping, hydraulic oil temperature, test piece temperature and the like through various sensors, collect the data in real time, and automatically generate reports for test personnel to master various characteristics of the test piece.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top plan view of the structure of the present invention;
FIG. 2 is a block diagram of the protective housing of the present invention;
FIG. 3 is a diagram of the structure of a mobile work platform A of the present invention;
FIG. 4 is a block diagram of a mobile work platform B of the present invention;
FIG. 5 is a side loading system block diagram of the present invention;
FIG. 6 is a block diagram of a piston rod rotation device of the present invention;
FIG. 7 is a block diagram of a control system of the present invention;
FIG. 8 is a block diagram of a primary power supply system of the present invention;
FIG. 9 is a block diagram of a power supply control loop of the present invention;
FIG. 10 is a block diagram of a servo motion system of the present invention;
FIG. 11 is a schematic diagram of a PLC control system of the present invention;
in the accompanying drawings: the device comprises a protection shell, a 2-control system, a 3-hydraulic system, a 4-driving system, a 5-piston rod rotating device, a 6-low temperature test box, a 7-base, an 8-movable working platform A, a 9-movable working platform B, a 10-length measuring system, an 11-damping measuring system, a 12-fixed working platform, a 13-side loading system, a 14-linear motor primary part, a 15-linear motor secondary part, a 16-connecting plate, a 17-fixed seat A, a 18-connecting seat A, a 19-connecting seat B, a 20-connecting rotating seat, a 21-fixed seat B, a 22-servo motor, a 23-speed reducer, a 24-hydraulic cylinder, a 25-tension pressure sensor and a 26-test workpiece.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-7, a running-in test device suitable for dynamic seal high speed and long time comprises a protective shell 1, a control system 2 arranged on the outer surface of the protective shell 1 and a running-in test tool arranged in the protective shell 1;
the running-in test fixture comprises a hydraulic system 3, a driving system 4, a piston rod rotating device 5, a low-temperature test box 6, a base 7, a movable working platform A8, a movable working platform B9, a length measuring system 10, a damping measuring system 11, a fixed working platform 12 and a side loading system 13;
the movable working platform A8, the movable working platform B9 and the fixed working platform 12 are respectively arranged on the base 7; the fixed workbench 12 is fixed at the middle end of the upper surface of the base 7;
the movable working platform A8 and the movable working platform B9 are respectively arranged at two sides of the fixed working platform 12 and are fixed on the base 7 through sliding rails;
the driving system 4 is arranged on the base 7 at one side of the movable working platform A8 and is connected with the movable working platform A8;
the length measuring system 10 is arranged on the base 7 and abuts against a sliding rail of the movable working platform A8;
the hydraulic system 3 is arranged on one side of the base 7 and is connected with the side loading system 13 through a pipeline;
the piston rod rotating device 5 is arranged on the movable working platform A8;
the low-temperature test chamber 6 and the side loading system 13 are arranged on the fixed working platform 12;
the test workpiece passes through the low-temperature test chamber 6 and the side loading system 13, one end of the test workpiece is connected with the piston rod rotating device 5 through the damping measuring system 11, and the other end of the test workpiece is connected with the movable working platform B9.
The protective shell 1 comprises a sliding door, and a transparent bulletproof glass PC plate is arranged on the sliding door. The protective housing 1 prevents splashing, and protective housing 1 has two push-and-pull doors, and there is transparent visual window in the door the place ahead, just can conveniently observe the equipment behavior without opening the door, designs simultaneously has the protection linkage, when opening the door, and the system only can carry out the low-speed test.
The control system 2 comprises a touch screen, an industrial personal computer, a PLC controller and a water cooler; the water cooler is connected with the PLC; the PLC controller comprises a communication module, an input/output module, a DI/DO module and an analog quantity module; the touch screen is connected with one end of the industrial personal computer, and the other end of the industrial personal computer is connected with the PLC; one end of the linear motor is connected with the length measuring system 10, and the other end of the linear motor is connected with the PLC; the length measurement system 10 is connected with the communication module; the analog quantity module is respectively connected with the length measuring system 10, the temperature sensor and the pressure sensor.
The control system 2 transmits commands such as a movement direction, a movement speed and the like to the industrial personal computer through the man-machine interaction interface, the industrial personal computer receives tasks and then carries out logic and mathematical operation, and an operation result is sent to the PLC through TCP/IP. The PLC analyzes the control instruction and sends the control instruction to the servo control system through a Profinet network protocol, and the servo motor moves under the control of the driver. The lifting stroke of the upper working platform can be detected in real time through the displacement sensor in the lifting process, the reading of the displacement sensor can be fed back to the servo DRIVE controller in the form of a DRIVE cliQ communication protocol, and the feedback signal is subjected to fuzzy PID operation in the main controller and given data, so that the displacement quantity and the displacement speed of the upper working platform can be accurately controlled. In the whole control process, the upper computer carries out high-frequency sampling on the data of the magnetic grid ruler, the encoder, the temperature sensor and the pressure sensor in real time and stores the data to generate a report.
Control system 2 principle:
main power supply system of system
As shown in fig. 8, the system is connected with 380V ac power by an aerial plug, a main air switch (Q1) is arranged in the power supply system for on-off, leakage protection, overload protection and the like of the 380V ac power, and a key knob switch (SA 1) is arranged in the loop for manually cutting off the power supply of the whole system, and is arranged in the control area of the operation desk.
System control loop power supply
As shown in FIG. 9, the system control loop uses 24V DC power and 380V/220V AC power. The linear motor is powered by alternating current 380V, the industrial personal computer, the touch screen and the water cooler are powered by alternating current 220V, and the PLC, the servo driver, the force sensor, the magnetic grating ruler, the encoder and the like are powered by direct current 24V. A150W alternating current-to-direct current switching power supply is adopted in the system to supply power for 24V direct current electric appliances. The system uses 6 air-break to protect the short circuit and overload of the power supply loop.
Principle of servo motion system
As shown in fig. 10, the servo motion system is composed of a motion controller (CU 320), a power module, a servo driver (S120), a servo motor, and a grating scale. After receiving a motion instruction of the PLC through Profinet communication, the motion controller firstly discharges a power-on instruction to the power module through a DRIVE cliQ, and immediately converts 380V alternating current into 600V direct current after the power module is powered on to provide a driving power supply for the servo driver. When all the motion controllers are ready, the motion controllers control the servo controllers to perform quick positioning motion through DRIVE CLiQ communication, and the current position can be fed back to the motion controllers in real time through an external high-precision grating ruler in the motion process of the executing mechanism to perform real-time full-closed loop position control. And the motion control system can also feed back the real-time position high frequency of the actuating mechanism to the PLC for data error reporting and analysis in the whole positioning motion process.
PLC control principle
As shown in fig. 11, the PLC may receive and issue instructions in real time through an I/O module, an analog module, a communication module, etc. In the system, the PLC receives instructions of the upper computer and the operation box, and issues operation execution instructions to the servo control system after performing logic judgment on the instructions. Meanwhile, the PLC reads the current position data of the magnetic grating ruler through SSI communication, the length range of the magnetic grating ruler is 0-1300mm, and the PLC can read the absolute value position values of the magnetic grating ruler at any time at any position for leakage analysis because the grating ruler is an absolute value sensor. The weighing sensor outputs analog quantity, the sensor generates weak electric signals after detecting gravity change, the electric signals can convert 0-2.5KN gravity into 4-20MA current signals after being amplified by the amplifier, and the PLC can convert analog quantity into digital quantity after receiving the current signals, so that the actual gravity born by the sensor is finally obtained. Meanwhile, the PLC collects the output of two temperature sensors through analog quantity, the temperature sensors convert data of-50 to 975 ℃ into current signals of 4 to 20MA, and after receiving the current signals, the PLC can convert the analog quantity into digital quantity, and finally the temperature actually detected by the sensors is obtained.
The PLC is provided with a time interrupt program, the program is provided with an interrupt program executed every 2ms, and the position of the motion mechanism, the temperature sensor, the weighing sensor and the displacement sensor are sampled each time the interrupt program is executed. The sampling period of the system to the sensor can reach 500HZ. And after the acquired data reach a certain quantity, packaging and sending the data to an upper computer for storage and analysis.
The hydraulic system provides oil pressure for the side loading oil cylinder, provides hydraulic load for the test piece, and two oil pipes are one in one out when providing hydraulic load, provides hydraulic load, lubrication and cooling for the whole sliding system, and hydraulic oil circulates always during that, and pressure is not less than 60Mpa, and pressure size is adjustable, and hydraulic system has temperature sensor, can monitor hydraulic oil temperature, and hydraulic oil temperature scope can freely set up.
The base 7 is of a cuboid structure, a groove convenient for installing a sliding rail is formed in the upper surface of the base 7, and the sliding rail is installed at the protruding parts at two ends of the groove; the bottom of the base 7 is provided with an adjusting sizing block and is fixed on the ground with a strand of foundation bolts. Before installation, the base 7 is leveled by using the adjusting sizing block, so that the working platform installed on the upper part can run more stably. The base 7 is fixed on the ground through the foundation bolts, so that the vibration and impact of the system in high-speed running and acceleration and deceleration can be overcome. And the chemical bolts are adopted for fixation, so that foundation construction is avoided. The sliding of the working platform on the base 7 adopts a linear guide rail, and has the characteristics of low friction coefficient, long service life and the like. The highest speed of the linear guide rail can reach 10m/s.
The driving system 4 comprises a linear motor primary part 14 and a linear motor secondary part 15, and the direct current motor primary part 14 is arranged at the upper end of the linear motor secondary part 15 and is connected with the bottom end of the movable working platform A8. The driving system is driven by two linear motors to drive the working platform to move left and right.
Heat dissipation occurs almost exclusively on the linear motor primary part 14 and heat is removed by an integrated water cooling system. Thermal decoupling between the motor and the machine can be achieved with a "sandwich" design of the dual-circuit cooling system. The double-loop cooling system sequentially comprises a precision cooler layer, a linear motor primary part 14 layer with a main cooler, a linear motor secondary part 15 cover plate, a linear motor secondary part 15, a cooling section and a linear motor secondary part 15 end cover from top to bottom.
The cooling modules are layered one above the other, the modules being separated by a heat insulating layer, this multi-layer design avoiding heat transfer from the primary part to the machine part, each cooling module being able to remove heat, so that very little heat is transferred to the machine.
With preservative-containing water as the cooling fluid, the cooling fluid must be pre-purified and filtered to avoid clogging the cooling circuit. The maximum allowable size of the particles in the cooling liquid is 100 microns.
The cooling liquid is provided by a refrigerator. Suitable chemical additives and opaque tubing are used to avoid algae growth. The cooling circuit employs a closed system, allowing a maximum pressure of 10 bar.
The movable working platform A8 comprises a connecting plate 16, a fixed seat A17 and a connecting seat A18; the fixing seat A17 is provided with a T-shaped groove, the fixing seat A17 is arranged on the connecting plate 16, and the bottom end of the connecting seat A18 is fixed on the fixing seat A17 through the T-shaped groove.
The movable working platform B9 comprises a connecting seat B19, a connecting rotating seat 20 and a fixing seat B21; the fixed seat B21 is provided with a T-shaped groove; the connecting seat B19 is fixedly connected with the connecting rotating seat 20; the bottom end of the connecting rotating seat 20 is fixed on the fixed seat 21 through a T-shaped groove.
The piston rod rotating device 5 comprises a servo motor 22 and a speed reducer 23; the servo motor 22 is connected with a speed reducer 23; the speed reducer 23 is fixed on the movable working platform A8 through the connecting seat a 18.
The lateral loading system 13 comprises a hydraulic cylinder 24 and a pull pressure sensor 25 connected to each other; the hydraulic cylinder 24 and the tension and pressure sensor 25 are fixed to the fixed work platform 12 by brackets. The running-in test is to load downward thrust force through a hydraulic cylinder 24, measure the magnitude of the loading force through a pull pressure sensor 25, the lateral loading force is about 2000N, the push-pull magnitude can be detected through the pull pressure sensor 25 connected with the lower end by adjusting the thrust magnitude, and the pull pressure sensor 25 with the 500Kgf measuring range is selected.
In order to test the low temperature performance of the hydraulic cylinder and the piston rod when the rod is in running-in, the parts near the hydraulic cylinder are cooled by a low temperature test box 6.
The length measurement system 10 employs a grating scale that enables accurate displacement measurements.
The damping measurement system 11 adopts a pull pressure sensor, and 1 pull pressure sensor is arranged between the movable working platform A8 and the test workpiece, and can collect the change of the force applied to the top in real time (the weight of a product, the weight of an accessory and the like can be removed through a program, and the like) so as to realize damping detection of the movement of the piston.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The running-in test device suitable for dynamic seal high speed and long time is characterized by comprising a protective shell (1), a control system (2) arranged on the outer surface of the protective shell (1) and a running-in test tool arranged in the protective shell (1);
the running-in test tool comprises a hydraulic system (3), a driving system (4), a piston rod rotating device (5), a low-temperature test box (6), a base (7), a movable working platform A (8), a movable working platform B (9), a length measuring system (10), a damping measuring system (11), a fixed working platform (12) and a lateral loading system (13);
the movable working platform A (8), the movable working platform B (9) and the fixed working platform (12) are respectively arranged on the base (7); the fixed workbench (12) is fixed at the middle end of the upper surface of the base (7);
the movable working platform A (8) and the movable working platform B (9) are respectively arranged at two sides of the fixed working platform (12) and are fixed on the base (7) through sliding rails;
the driving system (4) is arranged on a base (7) at one side of the movable working platform A (8) and is connected with the movable working platform A (8);
the length measurement system (10) is arranged on the base (7) and abuts against a sliding rail of the movable working platform A (8);
the hydraulic system (3) is arranged on one side of the base (7) and is connected with the lateral loading system (13) through a pipeline;
the piston rod rotating device (5) is arranged on the movable working platform A (8);
the low-temperature test box (6) and the side loading system (13) are arranged on the fixed working platform (12);
the test workpiece (26) passes through the low-temperature test box (6) and the lateral loading system (13), one end of the test workpiece (26) is connected with the piston rod rotating device (5) through the damping measuring system (11), and the other end of the test workpiece (26) is connected with the movable working platform B (9).
2. A high-speed and long-running-in test device suitable for dynamic sealing according to claim 1, characterized in that the protective housing (1) comprises a sliding door on which a transparent bullet-proof glass PC board is mounted.
3. The running-in test device suitable for dynamic seal at high speed and for long time according to claim 1, wherein the control system (2) comprises a touch screen, an industrial personal computer, a PLC controller and a water cooler;
the water cooler is connected with the PLC;
the PLC controller comprises a communication module, an input/output module, a DI/DO module and an analog quantity module;
the touch screen is connected with one end of the industrial personal computer, and the other end of the industrial personal computer is connected with the PLC;
one end of the linear motor is connected with the length measuring system (10), and the other end of the linear motor is connected with the PLC;
the length measurement system (10) is connected with the communication module;
the analog quantity module is respectively connected with the length measuring system (10), the temperature sensor and the pressure sensor.
4. The high-speed and long-time running-in test device suitable for dynamic seal according to claim 1, wherein the base (7) is of a cuboid structure, a groove convenient for installing a sliding rail is formed in the upper surface of the base (7), and the sliding rail is installed at the protruding parts at two ends of the groove; the bottom of the base (7) is provided with an adjusting sizing block which is fixed on the ground through an anchor bolt.
5. The running-in test device for the dynamic seal at high speed and for a long time according to claim 1, wherein the driving system (4) comprises a linear motor primary part (14) and a linear motor secondary part (15), and the linear motor primary part (14) is installed at the upper end of the linear motor secondary part (15) and is connected with the bottom end of the movable working platform A (8).
6. The high-speed and long-term running-in test device suitable for dynamic sealing according to claim 1, wherein the movable working platform a (8) comprises a connecting plate (16), a fixed seat a (17) and a connecting seat a (18); the fixing seat A (17) is provided with a T-shaped groove, the fixing seat A (17) is arranged on the connecting plate (16), and the bottom end of the connecting seat A (18) is fixed on the fixing seat A (17) through the T-shaped groove.
7. The device for a dynamic seal high-speed and long-time running-in test according to claim 1, wherein the movable working platform B (9) comprises a connecting seat B (19), a connecting rotating seat (20) and a fixed seat B (21); a T-shaped groove is formed in the fixing seat B (21); the connecting seat B (19) is fixedly connected with the connecting rotating seat (20); the bottom end of the connecting rotating seat (20) is fixed on the fixed seat (21) through a T-shaped groove.
8. A high-speed and long-term running-in test device suitable for dynamic sealing according to claim 1, characterized in that the piston rod rotation device (5) comprises a servo motor (22) and a speed reducer (23); the servo motor (22) is connected with the speed reducer (23); the speed reducer (23) is fixed on the movable working platform A (8) through the connecting seat A (18).
9. A high-speed and long-term running-in test device suitable for dynamic sealing according to claim 1, characterized in that the lateral loading system (13) comprises a hydraulic cylinder (24) and a pull pressure sensor (25) connected to each other; the hydraulic cylinder (24) and the tension and pressure sensor (25) are fixed on the fixed working platform (12) through a bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099794.6A CN114459744B (en) | 2022-01-27 | 2022-01-27 | Running-in test device applicable to dynamic seal at high speed for long time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210099794.6A CN114459744B (en) | 2022-01-27 | 2022-01-27 | Running-in test device applicable to dynamic seal at high speed for long time |
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| Publication Number | Publication Date |
|---|---|
| CN114459744A CN114459744A (en) | 2022-05-10 |
| CN114459744B true CN114459744B (en) | 2023-09-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101750212A (en) * | 2008-12-16 | 2010-06-23 | 上海宇航***工程研究所 | Running-in test device of multi-disc friction pair in energy-dissipating clutch device |
| CN202947874U (en) * | 2012-12-22 | 2013-05-22 | 彭湘 | Transmission system load running-in testing stand |
| CN109186879A (en) * | 2018-08-21 | 2019-01-11 | 南京越博动力***股份有限公司 | A kind of gearbox seal test table and its test method |
| WO2021092970A1 (en) * | 2019-11-11 | 2021-05-20 | 清华大学 | Low-temperature large temperature variation joint bearing test platform and measurement and observation method |
-
2022
- 2022-01-27 CN CN202210099794.6A patent/CN114459744B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101750212A (en) * | 2008-12-16 | 2010-06-23 | 上海宇航***工程研究所 | Running-in test device of multi-disc friction pair in energy-dissipating clutch device |
| CN202947874U (en) * | 2012-12-22 | 2013-05-22 | 彭湘 | Transmission system load running-in testing stand |
| CN109186879A (en) * | 2018-08-21 | 2019-01-11 | 南京越博动力***股份有限公司 | A kind of gearbox seal test table and its test method |
| WO2021092970A1 (en) * | 2019-11-11 | 2021-05-20 | 清华大学 | Low-temperature large temperature variation joint bearing test platform and measurement and observation method |
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| Publication number | Publication date |
|---|---|
| CN114459744A (en) | 2022-05-10 |
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