CN204312458U - For the experimental facilities of hydraulic cylinder durability test - Google Patents
For the experimental facilities of hydraulic cylinder durability test Download PDFInfo
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- CN204312458U CN204312458U CN201420709965.3U CN201420709965U CN204312458U CN 204312458 U CN204312458 U CN 204312458U CN 201420709965 U CN201420709965 U CN 201420709965U CN 204312458 U CN204312458 U CN 204312458U
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- hydraulic cylinder
- oil hydraulic
- lateral force
- guide rail
- pulley
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Abstract
The utility model relates to a kind of experimental facilities for hydraulic cylinder durability test, belongs to mechanical manufacturing field.Linear reciprocation driver element, lateral force applying unit, muddy water spray unit, oil hydraulic cylinder install longitudinal regulation unit, oil hydraulic cylinder setting angle regulating mechanism is separately fixed on main body frame, and described main body frame is formed by 40 × 40 square tubes solderings; Described linear reciprocation driver element and oil hydraulic cylinder are installed longitudinal regulation unit and are connected by test specimen.Advantage is: structure is simple, novel, feature richness, and automaticity is high.Can Reality simulation applying working condition, endurance test is carried out to oil hydraulic cylinder.Can test with four kinds of frequency (2Hz, 3Hz, 6Hz, 10Hz) schemes, the motor namely in linear reciprocation driver element pumps with above-mentioned four kinds of wide guide rails of frequency drives.True applying working condition comprises lateral force, muddy water spray, setting angle etc.Reliability is high, practical.
Description
Technical field
The utility model relates to mechanical manufacturing field, particularly a kind of experimental facilities for hydraulic cylinder durability test.
Background technique
Oil hydraulic cylinder plays very important effect in the lifting process of dumping car trunk and operator cabin, and the durability of oil hydraulic cylinder concerns usability and the use safety of vehicle.In order to verify the reliability of oil hydraulic cylinder, enterprise starts to need hydraulic cylinder durability testing apparatus.Require feature richness, can more real simulating reality Environmental Conditions, the features such as complete machine is reliable, easy to operate, with low cost.
Existing hydraulic cylinder durability testing installation is in the initial stage of exploitation, there is a lot of deficiency: 1. test method is single, a kind of service condition can only be simulated, be difficult to the real Environmental Conditions described in simulation, such as the operating mode that drenches with rain can not be simulated, operating mode during lateral force can not be simulated, can not the true setting angle etc. of simulated solution cylinder pressure.2., for the oil hydraulic cylinder frock adjustment inconvenience at the trial of different model, waste time and energy.3. automaticity is low, and important test parameters still needs hand-kept, and recorded data is long for interval time, reduces the accuracy of data analysis.4. the own poor reliability of equipment, some critical piece fatigue ruption under long jerk operating mode, and bolt joint occurs to loosen, and causes to complete test continuously.
Summary of the invention
The purpose of this utility model is to provide a kind of experimental facilities for hydraulic cylinder durability test, and overcome the problems referred to above of the existence of existing hydraulic cylinder durability testing installation, and automaticity is high, reliability is high.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
For the experimental facilities of hydraulic cylinder durability test, comprise main body frame, linear reciprocation driver element 1, lateral force applying unit 2, muddy water spray unit 3, oil hydraulic cylinder install longitudinal regulation unit 4, oil hydraulic cylinder setting angle regulating mechanism 5, touch screen; Described main body frame is formed by 40 × 40 square tubes solderings, do not use bolt, prevents from loosening because vibrations produce, and ensures whole aircraft reliability; Described linear reciprocation driver element 1, lateral force applying unit 2, muddy water spray unit 3, oil hydraulic cylinder install longitudinal regulation unit 4, oil hydraulic cylinder setting angle regulating mechanism 5 is separately fixed on main body frame, and linear reciprocation driver element 1 and oil hydraulic cylinder are installed longitudinal regulation unit 4 and be connected by test specimen 100.
Described linear reciprocation driver element 1 is: horizontal reducing motor 101 is fixedly mounted on motor gasket by screw, in synchronous pulley I, II 102,106, axis hole has keyway, and is coordinated with the axle of described horizontal reducing motor 101 by key connection; Axle 108 is supported by rolling bearing units 107, and described rolling bearing units 107 are axially fixed by the shaft shoulder, be rotated through jackscrew fix along axis; The two ends of described axle 107 install synchronous pulley II 106 and rotating disk 115 respectively, be connected by key between axle 107 with synchronous pulley II 106, be bolted between axle 107 and rotating disk 115, transmitting torque, connected by toothed belt 105 between two synchronous pulleys I, II 102,106; Two synchronous pulley axis horizontal are ensured by the cushion block 204 under adjustment rolling bearing units 107; Described rotating disk 115 has some tapped holes, and for adjusting the mounting point of connecting rod, the other end of connecting rod is connected with wide guide rail 111, and described connecting rod is made up of adjustment barrel 113 and two joint shaft bearings I, II 112,114; Described wide guide rail 111 moves up and down in wide guide rail slide block 109, and described wide guide rail 111 one end is equipped with and is hung bearing pin 110, for hanging workpiece; There is tapped hole at described adjustment barrel 113 two ends, and two joint shaft bearings I, II 112,114 are connected with it by outside thread; Described connecting rod and rotating disk 115, wide guide rail 111, wide guide rail slide block 109 form slidercrank mechanism, and slidercrank mechanism drives synchronous pulley I 102 and toothed belt 105 by described horizontal reducing motor 101, by axle 108 by transmission of power to slidercrank mechanism; Band tensioning mechanism is equipped with bearing by tensioning shaft 103 one end, the other end is double-shaft shoulder, in the middle of two shaft shoulders, thinner axle moves up and down on tensioning fixed plate 104, described tensioning fixed plate 104 has rectangular mouth, and described tensioning shaft 103 upper-lower position is regulated by the length of terminal bolt screw-in length on tensioning fixed plate 104.
Described lateral force applying unit 2 is: handle 205 is transmitted the rotation of coming in by handle rotating shaft 212 and slows down according to certain reduction speed ratio by speed reducer 201, and exported by lateral force rotating shaft 203 slow-speed of revolution, and driving runner 202 to rotate, described runner 202 is connected by key with between handle rotating shaft 212; Tension-compression sensor 210 one end connecting steel wire ropes, the other end is connected on anchor ear 211 by wire rope; Wire rope is wrapped on runner 202 by pulley 207 break-in, and described pulley 207 is arranged on and can slide up and down on pulley mounting plate 208, and described pulley mounting plate 208 to be arranged on the slide block 209 with guide rail 206 and by dead spacing fixing; The adjustment of described pulley 207 is applicable to the applying of the oil hydraulic cylinder lateral force of different size; Described speed reducer 201 is worm and gear deceleration form, has reverse self-locking, well ensure that the endurance that lateral force applies.
Described muddy water spray unit 3 comprise membrane pump with pneumatic drive 302, solenoid valve I, II 303,304, shower nozzle 301, water tank 309, heater 308, temperature transducer 307, liquid level sensor 305, blender gas pipe support 306 and pipeline, described membrane pump with pneumatic drive 302 is, using gas as power, the muddy water in water tank 309 is supplied to each shower nozzle 301, simulates the operating mode that drenches with rain; The start and stop controlling spray are reached by the source of the gas of solenoid valve I, II 303,304 break-make membrane pump with pneumatic drive 302; Described heater 308, temperature transducer 307 are arranged on the middle and lower part of water tank respectively, and carry out waterproof by water joint; Current muddy water temperature measured by described temperature transducer 307, and is sent to PLC analog module and carries out temperature control, and this temperature range can set through touch screen.Described liquid level sensor 305 is arranged on the top of water tank 309, for measuring the current muddy water degree of depth, sends depth value to PLC, and when the muddy water degree of depth will be reported to the police lower than setting lower limit, muddy water is added in prompting.The mode of air-blowing is applied in the stirring of muddy water cleverly, and structure is simply handy.
Described oil hydraulic cylinder is installed longitudinal regulation unit 4 and is comprised oil hydraulic cylinder 401, motor-drive pump 404, solenoid directional control valve 405, fuel tank and pipeline, and described oil hydraulic cylinder 401 cylinder barrel end is arranged in U-shaped frock 402, and described U-shaped frock 402 is fixed on main body frame; Described oil hydraulic cylinder 401 cylinder bar is arranged in U-shaped frock II 403, and U-shaped frock II 403 is arranged on shifting board 504; There is provided hydraulic power to drive oil hydraulic cylinder 401 by motor-drive pump 404 and by the moving direction of solenoid directional control valve 405 hydraulic control cylinder cylinder bar, thus drive shifting board 504 to move up and down, adjustment test specimen mounting point.
Described oil hydraulic cylinder setting angle regulating mechanism 5 is: shifting board 504 is arranged on sliding-rail sliding, can move up and down, and mobile dull and stereotyped 503 are arranged on shifting board 504, and in order to proof strength, add three stiffening ribs.Two press strips 502 are installed, the horizontal slip between two press strips 502 of U-shaped frock III 501 on described mobile dull and stereotyped 503, and press strip 502 is provided with some tapped holes, adjusts to suitable angle clamped by bolt when U-shaped frock III 501.
The utility model realizes testing with four kinds of different frequencies (2Hz, 3Hz, 6Hz, 10Hz) by frequency variator frequency conversion, especially tests with the form of horizontal reducing motor 101 driving crank slide-block mechanism.Application speed reducer 201 drive runner 202 and and between pulley 207 with the use of, utilize the flexible nature of wire rope to ensure lateral force vertical hydraulic cylinder cylinder barrel.Utilize the temperature transducer 307 well control of realization to temperature in muddy water spray process, and utilize air-flow to stir muddy water.The data of whole test are recorded in touch screen, convenient reading.Utilize Timing Belt to carry out transmission, in crank block, the structure of connecting rod is arranged in adjustment barrel 113 by two joint shaft bearings I, II 112,114.Lower end joint shaft bearing connects wide guide rail 111, is fixed by wide guide rail slide block 109.The angled installation of tracheae in four blender gas pipe supports 306, produces the current rotated, is conducive to the mixing of muddy water.
The beneficial effects of the utility model are: structure is simple, novel, easy to use.Four kinds of testing programs can be provided, can test with 2Hz, 3Hz, 6Hz, 10Hz tetra-kinds of different rotating speeds, and easy to operate.Utilizing speed reducer to coordinate with pulley drives wire rope to apply lateral force, adjusts the applying position of lateral force more easily, simulates lateral force operating mode more accurately.Increase muddy water spray unit, simulate the operating mode that drenches with rain more really.Apply airflow stirring muddy water cleverly, simplified structure greatly, and the problem solving stirring mechanism waterproof difficulty.Practical.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, and illustrative example of the present utility model and explanation thereof, for explaining the utility model, are not formed improper restriction of the present utility model.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is main TV structure schematic diagram of the present utility model;
Fig. 3 is backsight structural representation of the present utility model;
Fig. 4 is linear reciprocation driver element three-dimensional structure diagram of the present utility model;
Fig. 5 is lateral force applying unit three-dimensional structure diagram of the present utility model;
Fig. 6 is water tank of the present utility model and accessory structure figure.
In figure: 1, linear reciprocation driver element; 100, test specimen; 101, horizontal reducing motor; 102, synchronous pulley I; 103, tensioning shaft; 104, tensioning fixed plate; 105, toothed belt; 106, synchronous pulley II; 107, rolling bearing units; 108, axle; 109, wide guide rail slide block; 110, bearing pin is hung; 111, wide guide rail; 112,114, joint shaft bearing I, II; 113, adjustment barrel; 115, rotating disk; 2, lateral force applying unit; 201, speed reducer; 202, runner; 203, lateral force rotating shaft; 204, cushion block; 205, handle; 206, guide rail; 207, pulley; 208, pulley mounting plate; 209, slide block; 210, tension-compression sensor; 211, anchor ear; 212, handle rotating shaft; 3, muddy water spray unit; 301, shower nozzle; 302, membrane pump with pneumatic drive; 303,304, solenoid valve; 305, liquid level sensor; 306, blender gas pipe support; 307, temperature transducer; 308, heater; 309, water tank; 4, oil hydraulic cylinder installs longitudinal regulation unit; 401, oil hydraulic cylinder; 402, U-shaped frock; 403, U-shaped frock II; 404, motor-drive pump; 405, solenoid directional control valve; 5, oil hydraulic cylinder setting angle regulating mechanism; 501, U-shaped frock III; 502, press strip; 503, mobile dull and stereotyped; 504, shifting board.
Embodiment
Detailed content of the present utility model and embodiment thereof is further illustrated below in conjunction with accompanying drawing.
See shown in Fig. 1 to Fig. 6, experimental facilities for hydraulic cylinder durability test of the present utility model, comprises main body frame, linear reciprocation driver element 1, lateral force applying unit 2, muddy water spray unit 3, oil hydraulic cylinder installs longitudinal regulation unit 4, oil hydraulic cylinder setting angle regulating mechanism 5, touch screen; Described main body frame is formed by 40 × 40 square tubes solderings, do not use bolt, prevents from loosening because vibrations produce, and ensures whole aircraft reliability; Described linear reciprocation driver element 1, lateral force applying unit 2, muddy water spray unit 3, oil hydraulic cylinder install longitudinal regulation unit 4, oil hydraulic cylinder setting angle regulating mechanism 5 is separately fixed on main body frame, and linear reciprocation driver element 1 and oil hydraulic cylinder are installed longitudinal regulation unit 4 and be connected by test specimen 100.
Described linear reciprocation driver element 1 is: horizontal reducing motor 101 is fixedly mounted on motor gasket by screw, in synchronous pulley I, II 102,106, axis hole has keyway, and is coordinated with the axle of described horizontal reducing motor 101 by key connection; Axle 108 is supported by rolling bearing units 107, and described rolling bearing units 107 are axially fixed by the shaft shoulder, be rotated through jackscrew fix along axis; The two ends of described axle 107 install synchronous pulley II 106 and rotating disk 115 respectively, be connected by key between axle 107 with synchronous pulley II 106, be bolted between axle 107 and rotating disk 115, transmitting torque, connected by toothed belt 105 between two synchronous pulleys I, II 102,106; Two synchronous pulley axis horizontal are ensured by the cushion block 204 under adjustment rolling bearing units 107; Described rotating disk 115 has some tapped holes, and for adjusting the mounting point of connecting rod, the other end of connecting rod is connected with wide guide rail 111, and described connecting rod is made up of adjustment barrel 113 and two joint shaft bearings I, II 112,114; Described wide guide rail 111 moves up and down in wide guide rail slide block 109, and described wide guide rail 111 one end is equipped with and is hung bearing pin 110, for hanging workpiece; There is tapped hole at described adjustment barrel 113 two ends, and two joint shaft bearings I, II 112,114 are connected with it by outside thread; Described connecting rod and rotating disk 115, wide guide rail 111, wide guide rail slide block 109 form slidercrank mechanism, and slidercrank mechanism drives synchronous pulley I 102 and toothed belt 105 by described horizontal reducing motor 101, by axle 108 by transmission of power to slidercrank mechanism; Band tensioning mechanism is equipped with bearing by tensioning shaft 103 one end, the other end is double-shaft shoulder, in the middle of two shaft shoulders, thinner axle moves up and down on tensioning fixed plate 104, described tensioning fixed plate 104 has rectangular mouth, and described tensioning shaft 103 upper-lower position is regulated by the length of terminal bolt screw-in length on tensioning fixed plate 104.
Described lateral force applying unit 2 is: handle 205 is transmitted the rotation of coming in by handle rotating shaft 212 and slows down according to certain reduction speed ratio by speed reducer 201, and exported by lateral force rotating shaft 203 slow-speed of revolution, and driving runner 202 to rotate, described runner 202 is connected by key with between handle rotating shaft 212; Tension-compression sensor 210 one end connecting steel wire ropes, the other end is connected on anchor ear 211 by wire rope; Wire rope is wrapped on runner 202 by pulley 207 break-in, and described pulley 207 is arranged on and can slide up and down on pulley mounting plate 208, and described pulley mounting plate 208 to be arranged on the slide block 209 with guide rail 206 and by dead spacing fixing; The adjustment of described pulley 207 is applicable to the applying of the oil hydraulic cylinder lateral force of different size; Described speed reducer 201 is worm and gear deceleration form, has reverse self-locking, well ensure that the endurance that lateral force applies.
Described muddy water spray unit 3 comprise membrane pump with pneumatic drive 302, solenoid valve I, II 303,304, shower nozzle 301, water tank 309, heater 308, temperature transducer 307, liquid level sensor 305, blender gas pipe support 306 and pipeline, described membrane pump with pneumatic drive 302 is, using gas as power, the muddy water in water tank 309 is supplied to each shower nozzle 301, simulates the operating mode that drenches with rain; The start and stop controlling spray are reached by the source of the gas of solenoid valve I, II 303,304 break-make membrane pump with pneumatic drive 302; Described heater 308, temperature transducer 307 are arranged on the middle and lower part of water tank respectively, and carry out waterproof by water joint; Current muddy water temperature measured by described temperature transducer 307, and is sent to PLC analog module and carries out temperature control, and this temperature range can set through touch screen.Described liquid level sensor 305 is arranged on the top of water tank 309, for measuring the current muddy water degree of depth, sends depth value to PLC, and when the muddy water degree of depth will be reported to the police lower than setting lower limit, muddy water is added in prompting.The mode of air-blowing is applied in the stirring of muddy water cleverly, and structure is simply handy.
Described oil hydraulic cylinder is installed longitudinal regulation unit 4 and is comprised oil hydraulic cylinder 401, motor-drive pump 404, solenoid directional control valve 405, fuel tank and pipeline, and described oil hydraulic cylinder 401 cylinder barrel end is arranged in U-shaped frock 402, and described U-shaped frock 402 is fixed on main body frame; Described oil hydraulic cylinder 401 cylinder bar is arranged in U-shaped frock II 403, and U-shaped frock II 403 is arranged on shifting board 504; There is provided hydraulic power to drive oil hydraulic cylinder 401 by motor-drive pump 404 and by the moving direction of solenoid directional control valve 405 hydraulic control cylinder cylinder bar, thus drive shifting board 504 to move up and down, adjustment test specimen mounting point.
Described oil hydraulic cylinder setting angle regulating mechanism 5 is: shifting board 504 is arranged on sliding-rail sliding, can move up and down, and mobile dull and stereotyped 503 are arranged on shifting board 504, and in order to proof strength, add three stiffening ribs.Two press strips 502 are installed, the horizontal slip between two press strips 502 of U-shaped frock III 501 on described mobile dull and stereotyped 503, and press strip 502 is provided with some tapped holes, adjusts to suitable angle clamped by bolt when U-shaped frock III 501.
The utility model realizes testing with four kinds of different frequencies (2Hz, 3Hz, 6Hz, 10Hz) by frequency variator frequency conversion, especially tests with the form of horizontal reducing motor 101 driving crank slide-block mechanism.Application speed reducer 201 drive runner 202 and and between pulley 207 with the use of, utilize the flexible nature of wire rope to ensure lateral force vertical hydraulic cylinder cylinder barrel.Utilize the temperature transducer 307 well control of realization to temperature in muddy water spray process, and utilize air-flow to stir muddy water.The data of whole test are recorded in touch screen, convenient reading.Utilize Timing Belt to carry out transmission, in crank block, the structure of connecting rod is arranged in adjustment barrel 113 by two joint shaft bearings I, II 112,114.Lower end joint shaft bearing connects wide guide rail 111, is fixed by wide guide rail slide block 109.The angled installation of tracheae in four blender gas pipe supports 306, produces the current rotated, is conducive to the mixing of muddy water.
See shown in Fig. 1 to Fig. 6, working procedure of the present utility model is as follows:
Connect device power supply (DPS), be connected by communication interface between touch screen with PLC, the terminal of PLC connects corresponding relay, by Control solenoid valve I, II 303,304 and solenoid directional control valve 405 reach the action controlling corresponding executive component.
Be introduced for specific experiment below.Test specimen 100 cylinder bar end is suspended on and hangs on bearing pin 110; Test specimen cylinder barrel end is suspended in U-shaped frock III 501, and described U-shaped frock III 501 is arranged between two press strips 502 on mobile dull and stereotyped 503, passes through bolt presses.Rise by " test stand rising " and " test stand decline " hydraulic control cylinder 401 of point touching screen display and decline, reach correct position.The mobile U-shaped frock III 501 be arranged between two pressure 502, reaches suitable setting angle, by the U-shaped frock III 501 of screw in compression.
Setting experiment parameter: point touching screen " setting parameter " button, enters setting parameter pattern, set the left and right spray intermittent time respectively, left and right spray experiment number, left and right spray time, left and right experiment number, four kinds of parameters.
Heating function: point touching screen " starts heating " button, the upper and lower of setting temperature sensor 307.Heater 308 heats.When muddy water temperature reaches capping, heater 308 stops heating automatically; When muddy water temperature reaches setting lower limit, heater 308 starts heating automatically.
According to the parameter of above-mentioned setting, PLC controls the opening and closing of membrane pump with pneumatic drive 302 by Controlling solenoid valve I 303, thus controls the spray of muddy water.
When water level is lower than 10cm, warning light is reported to the police, prompting lack of water.
Rotating handles 205, slowed down by speed reducer 201 and drive lateral force rotating shaft 203, thus by wirerope-winding on runner 202, by pulley 207 break-in, wire rope is made to apply the power of almost vertical direction to Barrel of Hydraulic Cylinders, this power is measured by tension-compression sensor 210 and analog amount is transferred to PLC analog module and changes, and on the touchscreen, stop the rotation when reaching desirable lateral force handle in final display.
After completing above-mentioned task, carry out the selection of testing program: select " starting with 2HZ " (or " starting with 3HZ ", " starting with 6HZ ", " starting with 10HZ ") to carry out the test of corresponding scheme by touch screen.PLC controls frequency variator by corresponding contacts and carries out VFC to described horizontal reducing motor 101.Change the rotating speed of motor by changing frequency, thus control above-mentioned linear reciprocation driver element 400 and move with different frequency.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All the utility model is done any amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the experimental facilities for hydraulic cylinder durability test, it is characterized in that: comprise main body frame, linear reciprocation driver element (1), lateral force applying unit (2), muddy water spray unit (3), oil hydraulic cylinder installs longitudinal regulation unit (4), oil hydraulic cylinder setting angle regulating mechanism (5), touch screen, described main body frame is formed by square tubes soldering, described linear reciprocation driver element (1), lateral force applying unit (2), muddy water spray unit (3), oil hydraulic cylinder installs longitudinal regulation unit (4), oil hydraulic cylinder setting angle regulating mechanism (5) is separately fixed on main body frame, described linear reciprocation driver element (1) and oil hydraulic cylinder are installed longitudinal regulation unit (4) and are connected by test specimen (100).
2. the experimental facilities for hydraulic cylinder durability test according to claim 1, it is characterized in that: described linear reciprocation driver element (1) is: horizontal reducing motor (101) is fixedly mounted on motor gasket by screw, synchronous pulley I, II (102,106) interior axis hole has keyway, and is coordinated with the axle of described horizontal reducing motor (101) by key connection; Axle (108) is supported by rolling bearing units (107), and described rolling bearing units (107) are axially fixed by the shaft shoulder, be rotated through jackscrew fix along axis; The two ends of described axle (107) install synchronous pulley II (106) and rotating disk (115) respectively, be connected by key between axle (107) with synchronous pulley II (106), be bolted between axle (107) and rotating disk (115), transmitting torque, is connected by toothed belt (105) between two synchronous pulleys I, II (102,106); Two synchronous pulley axis horizontal are ensured by the cushion block (204) under adjustment rolling bearing units (107); (115) have some tapped holes with described rotating disk, and for adjusting the mounting point of connecting rod, the other end of connecting rod is connected with wide guide rail (111), and described connecting rod is made up of adjustment barrel (113) and two joint shaft bearings I, II (112,114); Described wide guide rail (111) moves up and down in wide guide rail slide block (109), and described wide guide rail (111) one end is equipped with and is hung bearing pin (110), for hanging workpiece; Described adjustment barrel (113) two ends are provided with tapped hole, and two joint shaft bearings I, II (112,114) are connected with it by outside thread; Described connecting rod and rotating disk (115), wide guide rail (111), wide guide rail slide block (109) form slidercrank mechanism, slidercrank mechanism drives synchronous pulley I (102) and toothed belt (105) by described horizontal reducing motor (101), by axle (108) by transmission of power to slidercrank mechanism; Band tensioning mechanism is equipped with bearing by tensioning shaft (103) one end, the other end is double-shaft shoulder, in the middle of two shaft shoulders, thinner axle moves up and down on tensioning fixed plate (104), described tensioning fixed plate (104) has rectangular mouth, and described tensioning shaft (103) upper-lower position is regulated by the length of the upper terminal bolt screw-in length of tensioning fixed plate (104).
3. the experimental facilities for hydraulic cylinder durability test according to claim 1, it is characterized in that: described lateral force applying unit (2) is: handle (205) is transmitted the rotation of coming in by handle rotating shaft (212) and slows down according to reduction speed ratio by speed reducer (201), and exported by lateral force rotating shaft (203) slow-speed of revolution, and drive runner (202) to rotate, be connected by key between described runner (202) with handle rotating shaft (212); Tension-compression sensor (210) one end connecting steel wire ropes, the other end is connected on anchor ear (211) by wire rope; Wire rope is wrapped on runner (202) by pulley (207) break-in, described pulley (207) is arranged on and can slide up and down on pulley mounting plate (208), and the slide block (209) that described pulley mounting plate (208) is arranged on guide rail (206) is gone up and passes through dead spacing fixing; The adjustment of described pulley (207) is applicable to the applying of the oil hydraulic cylinder lateral force of different size; Described speed reducer (201) is worm and gear deceleration form, has reverse self-locking, ensure that the endurance that lateral force applies.
4. the experimental facilities for hydraulic cylinder durability test according to claim 1, it is characterized in that: described muddy water spray unit (3) comprises membrane pump with pneumatic drive (302), solenoid valve I, II (303,304), shower nozzle (301), water tank (309), heater (308), temperature transducer (307), liquid level sensor (305), blender gas pipe support (306) and pipeline, described membrane pump with pneumatic drive (302) is, using gas as power, the muddy water in water tank (309) is supplied to each shower nozzle (301), simulates the operating mode that drenches with rain; The start and stop controlling spray are reached by the source of the gas of solenoid valve I, II (303,304) break-make membrane pump with pneumatic drive (302); Described heater (308), temperature transducer (307) are arranged on the middle and lower part of water tank respectively, and carry out waterproof by water joint, and described liquid level sensor (305) is arranged on the top of water tank (309).
5. the experimental facilities for hydraulic cylinder durability test according to claim 1, it is characterized in that: described oil hydraulic cylinder is installed longitudinal regulation unit (4) and comprised oil hydraulic cylinder (401), motor-drive pump (404), solenoid directional control valve (405), fuel tank and pipeline, described oil hydraulic cylinder (401) cylinder barrel end is arranged in U-shaped frock (402), and described U-shaped frock (402) is fixed on main body frame; Described oil hydraulic cylinder (401) cylinder bar is arranged in U-shaped frock II (403), and U-shaped frock II (403) is arranged on shifting board (504); There is provided hydraulic power to drive oil hydraulic cylinder (401) by motor-drive pump (404) and pass through the moving direction of solenoid directional control valve (405) hydraulic control cylinder cylinder bar, thus driving shifting board (504) to move up and down, adjustment test specimen mounting point.
6. the experimental facilities for hydraulic cylinder durability test according to claim 1, it is characterized in that: described oil hydraulic cylinder setting angle regulating mechanism (5) is: shifting board (504) is arranged on sliding-rail sliding, mobile dull and stereotyped (503) are arranged on shifting board (504), described mobile dull and stereotyped (503) upper installation two press strips (502), the horizontal slip between two press strips (502) of U-shaped frock III (501), and press strip (502) is provided with some tapped holes, adjusts U-shaped frock III (501) and clamped by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709965.3U CN204312458U (en) | 2014-11-24 | 2014-11-24 | For the experimental facilities of hydraulic cylinder durability test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709965.3U CN204312458U (en) | 2014-11-24 | 2014-11-24 | For the experimental facilities of hydraulic cylinder durability test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312458U true CN204312458U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709965.3U Withdrawn - After Issue CN204312458U (en) | 2014-11-24 | 2014-11-24 | For the experimental facilities of hydraulic cylinder durability test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500502A (en) * | 2014-11-24 | 2015-04-08 | 吉林大学 | Experimental equipment for testing durability of hydraulic cylinders |
| CN110937136A (en) * | 2019-10-25 | 2020-03-31 | 南京航空航天大学 | Aircraft landing gear buffer friction force testing device and testing method thereof |
-
2014
- 2014-11-24 CN CN201420709965.3U patent/CN204312458U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500502A (en) * | 2014-11-24 | 2015-04-08 | 吉林大学 | Experimental equipment for testing durability of hydraulic cylinders |
| CN110937136A (en) * | 2019-10-25 | 2020-03-31 | 南京航空航天大学 | Aircraft landing gear buffer friction force testing device and testing method thereof |
| CN110937136B (en) * | 2019-10-25 | 2022-10-11 | 南京航空航天大学 | Aircraft landing gear buffer friction force testing device and testing method thereof |
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