CN214748854U - High-low temperature pressure torsion endurance testing machine for simulating actual working conditions of sealing ring - Google Patents
High-low temperature pressure torsion endurance testing machine for simulating actual working conditions of sealing ring Download PDFInfo
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- CN214748854U CN214748854U CN202121159127.XU CN202121159127U CN214748854U CN 214748854 U CN214748854 U CN 214748854U CN 202121159127 U CN202121159127 U CN 202121159127U CN 214748854 U CN214748854 U CN 214748854U
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Abstract
The utility model provides a sealing washer simulation operating condition high low temperature pressure turns round endurance test machine can measure the change of sealing washer pressure and moment of torsion after fatigue test when simulating operating condition under 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 utility model relates to a mechanical seal detects, concretely relates to durability testing machine is turned round to high low temperature pressure of sealing washer simulation operating condition belongs to testing machine technical field.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sealing washer simulation operating condition high low temperature pressure turns round endurance test machine, simulation operating condition (the medium has silt, the greasy dirt, water) is to the sealing washer compression and twist reverse endurance fatigue test under high low temperature environment, and the application of compressive force is not influential to torque sensor's test, the application of torsional moment is not influential to the measurement of the reciprocal compression sensor of axial, really measure the change of sealing washer pressure and moment of torsion after fatigue test when simulating operating condition under high low temperature environment.
The utility model discloses a realize above-mentioned purpose, realize through 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.
The utility model 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 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 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 sealing 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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.
Utilize the utility model discloses a working process:
the actuating cylinder 201 is not connected with the torsion bar 602, reciprocating torsional load is applied to the tested sealing ring 202, the tested sealing ring 202 is placed in a circular groove formed by the actuating cylinder 201 and the inner die 206, and the pressure head 204 is in contact with the upper end face of the tested sealing ring 202 and applies axial reciprocating load. Lubricant 205 is injected into the interior through the oil filling port of the ram 204; ram 201 injects a silt water mixture 203. In the test process, the silt water oil discharge valve 208 is closed, and the sealing cover 207 is covered on the actuating cylinder 201, so that the silt water mixture 203 is prevented from splashing. After the test is finished, the silt water-oil discharge valve 208 is opened, so that the silt water mixture 203 can be conveniently discharged.
A sealing ring simulation actual working condition high-low temperature pressure torsion endurance testing machine is characterized in that a computer terminal controls a servo valve 16 and a servo motor 2 to realize application of linear reciprocating load and application of torsion reciprocating load, a load sensor 19 and a torque sensor 5 respectively collect axial linear reciprocating load and reciprocating torsion moment, collect force-torque-time curves and the like in real time, and monitor and record various test data including axial force peak value, valley value, torque peak value and valley value, force value and torque under different environmental temperatures, and attenuation of the force value and the 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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (9)
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 column (10) and the linear bearing (11).
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 torsion 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).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121159127.XU CN214748854U (en) | 2021-05-27 | 2021-05-27 | High-low temperature pressure torsion endurance testing machine for simulating actual working conditions of sealing ring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121159127.XU CN214748854U (en) | 2021-05-27 | 2021-05-27 | High-low temperature pressure torsion endurance testing machine for simulating actual working conditions of sealing ring |
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| CN214748854U true CN214748854U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 CN202121159127.XU patent/CN214748854U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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