CN113188791A - High-low temperature pressure-torsion durability testing machine and testing method for simulating actual working conditions by sealing ring - Google Patents
High-low temperature pressure-torsion durability testing machine and testing method for simulating actual working conditions by sealing ring Download PDFInfo
- Publication number
- CN113188791A CN113188791A CN202110584681.0A CN202110584681A CN113188791A CN 113188791 A CN113188791 A CN 113188791A CN 202110584681 A CN202110584681 A CN 202110584681A CN 113188791 A CN113188791 A CN 113188791A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- torsion
- actuating cylinder
- low temperature
- actual working
- 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.)
- Pending
Links
Images
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
- G01M13/005—Sealing rings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a high-low temperature pressure-torsion durability testing machine and a testing method for simulating an actual working condition of a sealing ring, which can measure the changes of pressure and torque after fatigue testing when the sealing ring simulates the actual working condition under a high-low temperature environment. The device comprises a torsion reciprocating loading system, an axial reciprocating loading system and a sealing ring mounting device; the sealing ring mounting device comprises a mounting die, wherein the mounting die comprises an actuating cylinder and an inner die, the actuating cylinder is of a hollow structure, the inner die is arranged in the actuating cylinder, a silt-water mixture is injected between the actuating cylinder and the upper surface of the inner die, the side surface of the actuating cylinder is connected with a silt-water-oil discharge valve, and a tested sealing ring is placed between the inner die and the actuating cylinder; the axial reciprocating loading system can be contacted with the upper end surface of the tested sealing ring to carry out axial reciprocating loading on the sealing ring; and the torsional reciprocating loading system is connected with the actuating cylinder and drives the actuating cylinder to rotate so as to apply reciprocating torsional moment to the sealing ring.
Description
Technical Field
The invention relates to mechanical seal detection, in particular to a high-low temperature pressure-torsion durability testing machine and a testing method for a sealing ring under simulated actual working conditions, and belongs to the technical field of testing machines.
Background
The sealing rings for the engineering machinery, particularly the crawler sealing rings are arranged on two sides of a guide pin of the crawler of the engineering machinery, and the performance of the sealing rings directly influences the service life of the crawler of the engineering machinery. In actual work, the sealing ring of the crawler of the engineering machinery is arranged in the shaft sleeve, the working environment is extremely severe, the temperature is from minus 40 ℃ to 80 ℃ from severe cold areas, south north poles and near equator, rainwater, slurry and sand dust are all media which are frequently contacted with the sealing ring of the crawler of the engineering machinery, and the requirement on the sealing ring is extremely high. Therefore, the service life of the engineering machinery is directly influenced by the performance of the sealing ring.
According to the requirements of the characteristics of the use environment of the sealing ring, a high-low temperature pressure-torsion durability testing machine under the simulated actual working condition of the sealing ring is developed.
Disclosure of Invention
The invention aims to provide a high-low temperature pressure-torsion endurance testing machine and a testing method for simulating an actual working condition of a sealing ring, which are used for simulating the compression and torsion endurance fatigue tests of the sealing ring under the high-low temperature environment under the actual working condition (media containing silt, oil stain and water), the application of a compression force does not influence the testing of a torque sensor, the application of a torsion moment does not influence the measurement of an axial reciprocating compression sensor, and the changes of the pressure and the torque after the fatigue tests when the sealing ring simulates the actual working condition under the high-low temperature environment are really measured.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a seal ring simulation actual working condition high-low temperature pressure torsion endurance testing machine comprises a working torsion reciprocating loading system, an axial reciprocating loading system and a seal ring mounting device;
the sealing ring mounting device comprises a mounting die, wherein the mounting die comprises an actuating cylinder and an inner die, the actuating cylinder is of a hollow structure, the inner die is arranged in the actuating cylinder, a silt-water mixture is injected between the actuating cylinder and the upper surface of the inner die, the side surface of the actuating cylinder is connected with a silt-water-oil discharge valve, and a tested sealing ring is placed between the inner die and the actuating cylinder;
the axial reciprocating loading system can be contacted with the upper end surface of the tested sealing ring to carry out axial reciprocating loading on the sealing ring;
and the torsional reciprocating loading system is connected with the actuating cylinder and drives the actuating cylinder to rotate so as to apply reciprocating torsional moment to the sealing ring.
The sealing washer simulation operating condition high low temperature pressure is turned round endurance test machine preferred scheme, the reciprocal loading system of axial includes direction straight line servo actuator, load sensor, direction subassembly and depression bar, direction straight line servo actuator is connected to depression bar one end, the pressure head is connected to the depression bar other end, the pressure head can with by the last end face contact of test sealing washer, the direction subassembly includes the guide post, linear bearing and deflector, connect load sensor and load sensor on the deflector and connect direction straight line servo actuator, the deflector is linear motion through guide bar and bearing.
The sealing ring simulates the optimal scheme of the high-low temperature pressure torsion endurance testing machine under the actual working condition, the compression rod is of a hollow design structure, and circulating water is placed inside the compression rod.
The sealing ring simulates the optimal scheme of the high-low temperature pressure torsion endurance testing machine under the actual working condition, the torsion reciprocating loading device comprises a servo motor, a speed reducer, a torque sensor and a torsion reciprocating loading assembly, the servo motor is connected with the speed reducer, an output shaft of the speed reducer is connected with the torque sensor through a coupler, and the torque sensor is connected with the sealing ring mounting device through the torsion reciprocating loading assembly.
The sealing ring simulates the optimal scheme of the high-low temperature pressure torsion endurance testing machine under the actual working condition, the torsion reciprocating loading assembly comprises a torsion bar, a flat key and a torsion coupler, the coupler is connected with the torsion bar through the flat key, the torsion bar is connected with the actuating cylinder, and the lower end of the torsion bar is connected with the plane thrust ball bearing.
The sealing washer simulation operating mode high low temperature pressure is turned round endurance test machine preferred scheme, it still includes host computer frame, workstation, walking beam and roof, the workstation is connected to host computer frame upper end, the workstation top is walking beam, the walking beam top is the roof, go up and connect through the stand between roof and the workstation, the piston rod and the walking beam of lifting the jar are connected, the walking beam can reciprocate through lifting the jar drive, it is connected with the workstation to twist reciprocal loading system and be located sealing washer installation device below, the reciprocal loading system of axial is located sealing washer installation device top.
The sealing ring simulates the optimal scheme of the high-low temperature pressure torsion endurance testing machine under the actual working condition, and further comprises a cross beam locking system, wherein the cross beam locking system comprises a locking oil cylinder, the locking oil cylinder is arranged on the rear side of the movable cross beam, and the locking oil cylinder is perpendicular to the lifting cylinder.
The sealing washer simulation operating condition high low temperature is pressed and is turned round endurance test machine preferred scheme, and it still includes high low temperature environment test box system, and high low temperature environment test box system includes the box, and the pulley is connected to the bottom half, and the pulley mounting is on the support guide rail, and on the workstation was connected to the support guide rail.
The sealing ring simulates the optimal scheme of the high-low temperature pressure torsion endurance testing machine under the actual working condition, and the air spring shock absorber is arranged at the bottom of the rack.
A test method for simulating a high-low temperature pressure-torsion endurance testing machine under actual working conditions by using the sealing ring comprises the following steps:
s1: placing the tested sealing ring between the actuating cylinder and the inner die, and injecting silt through the silt hole according to the actual working condition;
s2: the actuating cylinder is not connected with the torsion bar, the pressure head is contacted with the upper end face of the tested sealing ring, the guide linear servo actuator applies axial reciprocating load, the silt water-oil discharge valve is closed in the test process, the test is finished, and the silt water-oil discharge valve is opened;
s3: the torsion bar penetrates through the workbench to enter the environmental test box and is connected with the actuating cylinder, the servo motor drives the torsion bar to rotate forward and reversely, and reciprocating torsional moment is applied to the sealing ring;
s4: the load sensor and the torque sensor respectively collect axial linear reciprocating load and reciprocating torque, collect force-torque-time curves in real time, and monitor and record various test data, including axial force peak value, valley value, torque peak value, valley value, force values and torques at different environmental temperatures, and the attenuation of the force values and torques at different time stages.
The invention has the advantages that:
the testing method is characterized in that the compression and torsion endurance fatigue tests of the sealing ring under the actual working conditions (media containing silt, oil stain and water) are simulated under the high and low temperature environments, the application of the compression force does not influence the testing of the torque sensor, the application of the torsion moment does not influence the measurement of the axial reciprocating compression sensor, and the changes of the pressure and the torque after the fatigue tests are truly measured when the sealing ring under the high and low temperature environments simulates the actual working conditions.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is an overall schematic diagram of an embodiment of the present invention.
FIG. 2 is a schematic view of an axial reciprocating loading system according to an embodiment of the present invention.
FIG. 3 is a schematic view of a torsional reciprocating loading system according to an embodiment of the present invention.
Fig. 4 is a schematic view of a seal ring installation device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 4, a seal ring simulation actual working condition high-low temperature pressure torsion endurance testing machine comprises a frame structure, a working torsion reciprocating loading system, an axial reciprocating loading system and a seal ring installation device;
the frame structure comprises a main machine frame 1, a workbench 7, a movable cross beam 13 and a top plate 15, wherein the bottom of the main machine frame 1 is connected with an air spring shock absorber 24 to play a role in shock absorption and leveling adjustment, the upper end of the main machine frame 1 is connected with the workbench 7, the movable cross beam 13 is arranged above the workbench 7, the top plate 15 is arranged above the movable cross beam 13, the upper top plate 15 is connected with the workbench 7 through an upright post 17, a piston rod of a lifting cylinder 8 is connected with the movable cross beam 13, and the movable cross beam 13 can move up and down through the driving of the lifting cylinder 8;
the sealing ring mounting device comprises a mounting die, wherein the mounting die comprises an actuating cylinder 201, an inner die 206 and a sealing cover 207, the actuating cylinder 201 is of a hollow structure and is provided with a first accommodating groove and a second accommodating groove, the first accommodating groove is used for accommodating the inner die 206, the second accommodating groove is of a conical structure and is used for injecting a silt-water mixture 203 between the actuating cylinder 201 and the upper surface of the inner die 206, the side surface of the actuating cylinder 201 is connected with a silt-water-oil discharge valve 208, and a tested sealing ring 202 is arranged between the inner die 206 and the actuating cylinder 201;
the axial reciprocating loading system is positioned above the sealing ring mounting device, can be contacted with the upper end surface of the tested sealing ring 202, and can carry out axial reciprocating loading on the sealing ring;
and the torsional reciprocating loading system is positioned below the sealing ring mounting device, is connected with the workbench, is connected with the actuating cylinder 201, and drives the actuating cylinder 201 to rotate so as to apply reciprocating torsional moment to the sealing ring.
Referring to fig. 2, the axial reciprocating loading system comprises a guiding linear servo actuator 14, a load sensor 19, a guiding assembly and a pressure rod 20, wherein one end of the pressure rod 20 is connected with the guiding linear servo actuator 14, the other end of the pressure rod 20 is connected with a pressure head 204, the pressure head 204 is designed to be of a hollow structure and is provided with an oil filling port, the pressure head 204 can be in contact with the upper end face of a tested sealing ring 202, the guiding assembly comprises a guiding column 10, a linear bearing 11 and a guiding plate 12, the guiding plate 12 is connected with the load sensor 19, the load sensor 19 is connected with the guiding linear servo actuator 14, and the guiding plate 12 makes linear motion through the guiding rod 10 and the bearing 12. The piston rod of the guide linear servo actuator 14 penetrates through the movable beam 13 to be connected with the load sensor 19, the guide assembly is connected with the pressure rod 20, and the pressure rod 20 is directly connected with the pressure head 204 to apply axial reciprocating load to the sealing ring.
In this embodiment, the pressure rod 20 is a hollow structure, and the inside of the pressure rod 20 is used for placing the circulating water 25, so as to prevent the temperature change of the environmental test chamber from changing the output of the load sensor 19, which may affect the accuracy of the test data. The compression bar 20 is made of metal and has heat conduction performance.
Referring to fig. 3, the torsional reciprocating loading device 6 includes a servo motor 2, a speed reducer 3, a torque sensor 5 and a torsional reciprocating loading assembly, the servo motor 2 is connected to the speed reducer 3, an output shaft of the speed reducer 3 is connected to the torque sensor 5 through a coupling 4, and the torque sensor 5 is connected to the sealing ring mounting device through the torsional reciprocating loading assembly.
In this embodiment, the torsional reciprocating loading assembly includes a torsion bar 602, a flat key 603 and a torsional coupling 604, the coupling 604 is connected to the torsion bar 602 through the flat key 603, the torsion bar 602 is connected to the ram 201, and the lower end of the torsion bar 602 is connected to the flat ball thrust bearing 601.
In the embodiment, the device further comprises a beam locking system, wherein the beam locking system comprises a locking oil cylinder 18, the locking oil cylinder 18 is installed on the rear side of the movable beam 13, the locking oil cylinder 18 is perpendicular to the lifting cylinder 8, the lifting cylinder 8 completes up-and-down movement of the movable beam 13 to complete space adjustment, the movable beam is locked after adjustment is completed, and the movable beam does not generate axial movement in the test process.
In this embodiment, still include high low temperature environmental test case system, high low temperature environmental test case system includes the box, and the pulley is connected to the bottom half, and the pulley is installed on support guide rail 22, and support guide rail 22 is connected on workstation 7. If the high-low temperature test is not needed, the box body can be moved to the rear part of the tester host, and the test under the normal temperature environment is not influenced.
10. A test method for simulating a high-low temperature pressure-torsion endurance testing machine under actual working conditions by using the sealing ring is characterized by comprising the following steps of:
s1: placing a tested sealing ring (202) between the actuating cylinder (201) and the inner die (206), and injecting silt through a silt hole according to actual working conditions;
s2: the actuating cylinder (201) is not connected with the torsion bar (602) at first, the pressure head (204) is contacted with the upper end face of the tested sealing ring (202), the linear guide servo actuator (14) applies axial reciprocating load, the silt water-oil discharge valve (208) is closed in the test process, the test is finished, and the silt water-oil discharge valve (208) is opened;
s3: the torsion bar penetrates through the workbench to enter the environmental test box and is connected with the actuating cylinder (201), and the servo motor (2) is driven to rotate in the forward direction and the reverse direction to apply reciprocating torsional moment to the sealing ring;
s4: the load sensor 19 and the torque sensor 5 respectively collect axial linear reciprocating load and reciprocating torque, collect force-torque-time curves in real time, and monitor and record various test data, including axial force peak value, valley value, torque peak value, valley value, force value and torque under different environmental temperatures, and attenuation of force value and torque at different time stages.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a durability test machine is turned round to high low temperature pressure of sealing washer simulation operating condition which characterized in that: the device comprises a torsion reciprocating loading system, an axial reciprocating loading system and a sealing ring mounting device;
the sealing ring mounting device comprises a mounting die, wherein the mounting die comprises an actuating cylinder (201) and an inner die (206), the actuating cylinder (201) is of a hollow structure, the inner die (206) is arranged inside the actuating cylinder (201), a silt water mixture (203) is injected between the actuating cylinder (201) and the upper surface of the inner die (206), the side surface of the actuating cylinder (201) is connected with a silt water-oil discharge valve (208), and a tested sealing ring (202) is placed between the inner die (206) and the actuating cylinder (201);
the axial reciprocating loading system can be in contact with the upper end face of the tested sealing ring (202) and can carry out axial reciprocating loading on the sealing ring;
and the torsional reciprocating loading system is connected with the actuating cylinder (201) and drives the actuating cylinder (201) to rotate so as to apply reciprocating torsional moment to the sealing ring.
2. The seal ring high-low temperature pressure-torsion endurance testing machine for simulating actual working conditions according to claim 1, characterized in that: the axial reciprocating loading system comprises a guide linear servo actuator (14), a load sensor (19), a guide assembly and a pressure rod (20), the guide linear servo actuator (14) is connected to one end of the pressure rod (20), the pressure head (204) is connected to the other end of the pressure rod (20), the pressure head (204) can be in contact with the upper end face of a tested sealing ring (202), the guide assembly comprises a guide column (10), a linear bearing (11) and a guide plate (12), the guide plate (12) is connected with the load sensor (19) and connected with the guide linear servo actuator (14), and the guide plate (12) is in linear motion through the guide rod (10) and the bearing (12).
3. The seal ring high-low temperature pressure-torsion endurance testing machine for simulating actual working conditions according to claim 2, characterized in that: the compression bar (20) is of a hollow design structure, and the inside of the compression bar (20) is used for placing circulating water (25).
4. The seal ring high-low temperature pressure-torsion endurance testing machine for simulating actual working conditions according to claim 1, characterized in that: the torsion reciprocating loading device (6) comprises a servo motor (2), a speed reducer (3), a torque sensor (5) and a torsion reciprocating loading assembly, the servo motor (2) is connected with the speed reducer (3), an output shaft of the speed reducer (3) is connected with the torque sensor (5) through a coupler (4), and the torque sensor (5) is connected with a sealing ring mounting device through the torsion reciprocating loading assembly.
5. The seal ring high-low temperature pressure-torsion endurance testing machine for simulating actual working conditions according to claim 4, characterized in that: the torsion reciprocating loading assembly comprises a torsion bar (602), a flat key (603) and a torsion coupler (604), wherein the coupler (604) is connected with the torsion bar (602) through the flat key (603), the torsion bar (602) is connected with the actuating cylinder (201), and the lower end of the torsion bar (602) is connected with the plane thrust ball bearing (601).
6. The seal ring high-low temperature pressure-torsion endurance testing machine for simulating actual working conditions according to claim 1, characterized in that: the sealing ring installation device is characterized by further comprising a main machine frame (1), a workbench (7), a movable cross beam (13) and a top plate (15), the upper end of the main machine frame (1) is connected with the workbench (7), the movable cross beam (13) is arranged above the workbench (7), the top plate (15) is arranged above the movable cross beam (13), the upper top plate (15) and the workbench (7) are connected through an upright post (17), a piston rod of a lifting cylinder (8) is connected with the movable cross beam (13), the movable cross beam (13) can move up and down through the driving of the lifting cylinder (8), a torsion reciprocating loading system is located below the sealing ring installation device and connected with the workbench, and an axial reciprocating loading system is located above the sealing ring installation device.
7. The seal ring high-low temperature pressure-torsion durability testing machine capable of simulating actual working conditions according to claim 6, and is characterized in that: the device also comprises a beam locking system, wherein the beam locking system comprises a locking oil cylinder (18), the locking oil cylinder (18) is arranged on the rear side of the movable beam (13), and the locking oil cylinder (18) is vertical to the lifting cylinder (8).
8. The seal ring high-low temperature pressure-torsion durability testing machine capable of simulating actual working conditions according to claim 6, and is characterized in that: the high and low temperature environment test box system comprises a box body, the bottom of the box body is connected with a pulley, the pulley is installed on a support guide rail (22), and the support guide rail (22) is connected with a workbench (7).
9. The seal ring high-low temperature pressure-torsion durability testing machine capable of simulating actual working conditions according to claim 6, and is characterized in that: the bottom of the frame (1) is provided with a gas spring damper (24).
10. A test method for simulating a high-low temperature pressure-torsion endurance testing machine under actual working conditions by using the sealing ring is characterized by comprising the following steps of:
s1: placing a tested sealing ring (202) between the actuating cylinder (201) and the inner die (206), and injecting silt through a silt hole according to actual working conditions;
s2: the actuating cylinder (201) is not connected with the torsion bar (602) at first, the pressure head (204) is contacted with the upper end face of the tested sealing ring (202), the linear guide servo actuator (14) applies axial reciprocating load, the silt water-oil discharge valve (208) is closed in the test process, the test is finished, and the silt water-oil discharge valve (208) is opened;
s3: the torsion bar penetrates through the workbench to enter the environmental test box and is connected with the actuating cylinder (201), and the servo motor (2) is driven to rotate in the forward direction and the reverse direction to apply reciprocating torsional moment to the sealing ring;
s4: the load sensor 19 and the torque sensor 5 respectively collect axial linear reciprocating load and reciprocating torque, collect force-torque-time curves in real time, and monitor and record various test data, including axial force peak value, valley value, torque peak value, valley value, force value and torque under different environmental temperatures, and attenuation of force value and torque at different time stages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110584681.0A CN113188791A (en) | 2021-05-27 | 2021-05-27 | High-low temperature pressure-torsion durability testing machine and testing method for simulating actual working conditions by sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110584681.0A CN113188791A (en) | 2021-05-27 | 2021-05-27 | High-low temperature pressure-torsion durability testing machine and testing method for simulating actual working conditions by sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113188791A true CN113188791A (en) | 2021-07-30 |
Family
ID=76985376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110584681.0A Pending CN113188791A (en) | 2021-05-27 | 2021-05-27 | High-low temperature pressure-torsion durability testing machine and testing method for simulating actual working conditions by sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113188791A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086706A (en) * | 2023-01-29 | 2023-05-09 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Actuator cylinder test device and test method thereof |
| CN117091831A (en) * | 2023-10-20 | 2023-11-21 | 南京专注智能科技股份有限公司 | Sealing rubber ring performance detection device for tobacco fermentation tank and working method |
-
2021
- 2021-05-27 CN CN202110584681.0A patent/CN113188791A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086706A (en) * | 2023-01-29 | 2023-05-09 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Actuator cylinder test device and test method thereof |
| CN116086706B (en) * | 2023-01-29 | 2024-01-30 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Actuator cylinder test device and test method thereof |
| CN117091831A (en) * | 2023-10-20 | 2023-11-21 | 南京专注智能科技股份有限公司 | Sealing rubber ring performance detection device for tobacco fermentation tank and working method |
| CN117091831B (en) * | 2023-10-20 | 2023-12-19 | 南京专注智能科技股份有限公司 | Sealing rubber ring performance detection device for tobacco fermentation tank and working method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113188791A (en) | High-low temperature pressure-torsion durability testing machine and testing method for simulating actual working conditions by sealing ring | |
| CN103115772B (en) | Axial nut loading mechanism for ball screen assemblies | |
| CN214748854U (en) | High-low temperature pressure torsion endurance testing machine for simulating actual working conditions of sealing ring | |
| CN111577184A (en) | Rotary type fidelity corer experiment platform | |
| CN111638126A (en) | Experimental device for testing friction self-excited vibration of rubber material | |
| CN110749461A (en) | Multi-axial fatigue vibration rack for rail vehicle | |
| CN111366357A (en) | Electric direct-drive shaft torsional fatigue test device and method | |
| CN106644329B (en) | 120MN bridge support testing machine for high-precision dynamic measurement | |
| CN203037460U (en) | Axial loading mechanism for nut of ball screw pair | |
| CN1195212C (en) | Stand for testing reliablity of electric appliances of four cylinder vehicle | |
| CN107305154B (en) | Torsion and shear combined loading test device for air spring | |
| CN115824615B (en) | Engine piston pin friction performance testing system and testing method thereof | |
| CN113418721B (en) | Farm machinery test rack convenient to debug | |
| CN115014930A (en) | Sealant fatigue performance detection tool and operation method | |
| CN212255027U (en) | Reciprocating sliding friction and wear testing machine for end faces of column tiles | |
| KR200291236Y1 (en) | A testing machine for compress performance | |
| CN209878323U (en) | Engine bearing friction measuring device | |
| CN110108585B (en) | Gas well annular sealing rubber core friction wear testing machine | |
| CN112834201A (en) | Automobile steering wheel torsional fatigue performance endurance test detection device | |
| CN209166771U (en) | A kind of spring test device | |
| CN103217294B (en) | Zero point judgment and control mechanism for valve stroke of internal combustion engine air flue current stabilization test bed | |
| CN106644731B (en) | Rock true triaxial test device capable of externally mounting sample | |
| CN218787975U (en) | Non-metallic material wearability test device | |
| CN220339924U (en) | Road surface structure internal mechanics response characteristic test device under vehicle load | |
| CN219551878U (en) | Thrust wheel detection device |
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 |