CN204008102U - Reciprocating liquid spring unit simulation test device - Google Patents
Reciprocating liquid spring unit simulation test device Download PDFInfo
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- CN204008102U CN204008102U CN201420416699.5U CN201420416699U CN204008102U CN 204008102 U CN204008102 U CN 204008102U CN 201420416699 U CN201420416699 U CN 201420416699U CN 204008102 U CN204008102 U CN 204008102U
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Abstract
The utility model discloses reciprocating liquid spring unit simulation test device, this test unit has made up the problem that prior art is loaded down with trivial details to reciprocating hydraulic vibration damper instruction process, the analysis of causes is not enough, and described reciprocating liquid spring unit simulation test device includes drive unit, test unit main body, fueller and device mounting platform.Drive unit is arranged on the left side of device mounting platform upper surface for being fixedly connected with, test unit main body is arranged on the right side of device mounting platform upper surface for being fixedly connected with, the right-hand member of the two-direction pull press power sensor in drive unit is fixedly connected with the left end screw thread of the piston rod in test unit main body, fueller is arranged on the lower right of the top plane framework in device mounting platform, the left end of the recovery chamber switch valve in fueller adopts hydraulic oil pipe to be connected with first pipe adapter in test unit main body, the right-hand member of the compression chamber switch valve in fueller is connected with second pipe adapter in test unit main body by hydraulic oil pipe.
Description
Technical field
The utility model relates to a kind of liquid spring unit test unit, and or rather, the utility model relates to a kind of reciprocating liquid spring unit simulation test device that can help vibration damper adjustment and design.
Background technology
In Hyundai Motor and industrial system, the vibration damper element that is absolutely necessary, it can be other form energies by the vibration kinetic transformation of control object, damped vibration.The common type of vibration damper has rotary and reciprocating, and the damping force damped vibration contrary with direction of vibration that reciprocating vibration damper produces when to-and-fro movement in cylinder barrel by piston, in a large number for straight-line vibration damping.
The common filling liquid of reciprocating vibration damper, so that enough pressure and dampings to be provided, conventionally to produce principle by damping and can be divided into common liq vibration damper and liquid adjustable shock absorber.Common hydraulic buffer is filled the certain vibration damper fluid of viscosity, and the cracking pressure control piston two ends of the orifice restriction effect that in vibration damper motion process by valve is and valve block produce pressure difference, thereby produces damping force.Liquid adjustable shock absorber is filled the special liquid of variable viscosity, by applying magnetic field or electric field, controls liquid viscosity, thereby obtains the damping force of wanting.For any one vibration damper, the valve system in design and adjusting vibration damper and fluid passage are the core procedures of design instruction vibration damper.
Traditional absorber designing adjustment work, needs repeated disassembled and assembled vibration damper, reconnects testing table and test after the damping elements such as replacing valve block; alignment step is loaded down with trivial details; the waste of vibration damper filling liquid is serious, huge for liquid adjustable shock absorber instruction cost, and test adjustment environment is severe.
On the other hand, vibration damper usually carries out adjustment and experiment as the sightless entirety in inside and assembly, in the time that vibration damper output force characteristics does not meet the demands, often can only judge by rule of thumb its reason, be difficult to accurately find influence factor, particularly, in the time running into the situation of the moment appearance such as the instantaneous vacuum of chamber, cannot confirm problem place.
At present also there is no to help at home the experimental provision of the adjustment of reciprocating hydraulic vibration damper and design.
Summary of the invention
Technical problem to be solved in the utility model is to have made up the problem that prior art is loaded down with trivial details to reciprocating hydraulic vibration damper instruction process, the analysis of causes is not enough, and a kind of reciprocating liquid spring unit simulation test device is provided.
For solving the problems of the technologies described above, the utility model is to adopt following technical scheme to realize: described reciprocating liquid spring unit simulation test device includes drive unit, test unit main body, fueller and device mounting platform.
Drive unit is arranged on the left side of device mounting platform upper surface for being fixedly connected with, test unit main body is arranged on the right side of device mounting platform upper surface for being fixedly connected with, the right-hand member of the two-direction pull press power sensor in drive unit is fixedly connected with the left end screw thread of the piston rod in test unit main body, fueller is arranged on the lower right of the top plane framework in device mounting platform, the left end of the recovery chamber switch valve in fueller adopts hydraulic oil pipe to be connected with first pipe adapter plug-in mounting in test unit main body, the right-hand member of the compression chamber switch valve in fueller is connected with second pipe adapter plug-in mounting in test unit main body by hydraulic oil pipe.
Drive unit described in technical scheme (1) includes linear electric motors, linear electric motors mandrel, linear electric motors support, two-direction pull press power sensor, linear movement pick-up fixed arm, linear displacement transducer and set nut.Linear electric motors adopt bolt to be fixedly connected on linear electric motors support, and the horizontal base of electric machine support adopts bolt to be fixedly connected with the top plane framework of device mounting platform, linear electric motors mandrel is arranged in the center pit of linear electric motors as being threaded, the right-hand member of linear electric motors mandrel inserts after the through hole of linear movement pick-up fixed arm upper end with the left end screw thread of the two-direction pull press power sensor on linear movement pick-up fixed arm right side and is fixedly connected with, set nut is sleeved on the linear electric motors mandrel in linear movement pick-up fixed arm left side, set nut, linear movement pick-up fixed arm contacts and is connected successively with linear electric motors mandrel, the lower end of linear movement pick-up fixed arm is fixedly connected with the sounding rod left end of linear displacement transducer, linear displacement transducer adopts bolt to be fixed on the top plane framework of device mounting platform, the right-hand member of two-direction pull press power sensor is fixedly connected with the left end screw thread of the piston rod in test unit main body.
Test unit main body described in technical scheme includes left end cap assembly, main cylinder assembly, right end cap assembly and secondary cylinder assembly.Left end cap assembly is positioned at the left end of main cylinder assembly, right end cap assembly is positioned at the right-hand member of main cylinder assembly, adopt 4 identical main cylinder set nut and 4 identical main cylinder hold-down bolts of structure of 4 structures left end cap assembly, main cylinder assembly and right end cap assembly to be fixedly connected with the device right support abutment in right end cap assembly by the device left support abutment in left end cap assembly, secondary cylinder assembly is arranged on the top of right end cap assembly, adopts secondary cylinder hold-down bolt that 4 root architectures are identical secondary cylinder assembly to be fixed on to the top of the secondary cylinder bearing in right end cap assembly.
Left end cap assembly described in technical scheme also includes piston rod end cap, piston rod packing assembly, restores cavity pressure sensor and main cylinder left end cap.In the left end of the left manhole on the vertical wallboard of tailpiece of the piston rod lid charging apparatus left support abutment, piston rod packing assembly packs in the ring cavity in piston rod end cap, in the right-hand member of the left manhole on the vertical wallboard of main cylinder left end cap charging apparatus left support abutment, piston rod end cap, device left support abutment and main cylinder left end cap adopt the left end cap set bolt that 4 root architectures are identical to connect as one, recovery cavity pressure installation of sensors is in the centre position of installing left support abutment top for being threaded, and first pipe adapter is threaded with the centre position of device left support abutment bottom.
Device left support abutment described in technical scheme is L shaped structural member, intersect vertically and form by vertical wallboard and horizontal installing plate, vertically the center of wallboard is provided with the left manhole for main cylinder left end cap and piston rod end cap are installed, be processed with the tapped through hole that restores cavity pressure sensor for installing on the top of left manhole, bottom at left manhole is processed with shoulder hole, the lower end of shoulder hole is the threaded hole of mounting pipe joint, the top of threaded hole connects promising minor diameter through hole, minor diameter through hole is communicated with the left manhole of center, device left support abutment vertical wallboard on centered by the axis of rotation of left manhole, around left manhole, be uniformly distributed 4 bolt of cover holes, be processed with respectively at vertical four angles place of wallboard four structures identical for the hold-down bolt fixed orifice of main cylinder hold-down bolt is installed, the horizontal installing plate two ends of device left support abutment are processed with the symmetrical U-shaped groove for erection bolt.
Described secondary cylinder bearing is made up of main body and the mounting base of cuboid, the main body of cuboid is positioned at the centre position of mounting base, the main body of cuboid is connected mutual vertically with mounting base, be provided with 2 sections of dome ring bodies with the centre of gyration in the center of rectangular main body left side, the dome ring body of the minor diameter of high order end is as installing and the seam of locating, be provided with 2 sections of horizontal shoulder holes at 2 sections of dome ring body center along continuous straight runs with the centre of gyration, left end is large diameter threaded hole, and right-hand member is set to the right side blind hole of minor diameter, the center, top of the rectangular main body of secondary cylinder bearing is provided with 3 sections of vertical shoulder holes from top to bottom, 3 sections of ladder blind hole diameter from large to small, on the face of cylinder, lower end of each section of circular hole of 3 sections of vertical shoulder holes, be provided with the annular seal groove that secondary cylinder O-ring seal is installed, the right-hand member of 2 sections of horizontal shoulder holes is communicated with by right angle channel with the bottom of 3 sections of vertical shoulder holes, on the top end face of the rectangular body of secondary cylinder bearing, centered by 3 sections of vertical shoulder hole axiss of rotation, be processed with 4 threaded holes in surrounding, surrounding at the seam of the left side of the cuboid main body of secondary cylinder bearing is processed with 4 threaded holes centered by the centre of gyration of seam, the two ends of the mounting base of secondary cylinder bearing are processed with 2 pairs of symmetrical U-shaped grooves.
Right end cap assembly described in technical scheme also includes main cylinder right end cap, compression chamber pressure transducer, bottom valve and secondary cylinder bearing.Device right support abutment is identical with device left support abutment structure, and main cylinder right end cap is identical with main cylinder left end cap structure, is all discoid solid of revolution part.In the left end of the central through hole on the vertical wallboard of main cylinder right end cap charging apparatus right support abutment, in the right-hand member of the central through hole on the vertical wallboard of secondary cylinder bearing charging apparatus right support abutment, main cylinder right end cap, device right support abutment adopt the right end cap set bolt that 4 root architectures are identical to connect as one with secondary cylinder bearing, compression chamber pressure transducer is arranged on the centre position on device right support abutment top for being threaded, second pipe adapter is threaded with the centre position of device right support abutment bottom, and bottom valve is arranged in the threaded hole in 2 sections of horizontal shoulder holes on secondary cylinder bearing as being threaded.
Main cylinder assembly described in technical scheme also includes 4 main cylinder set nut, piston rod, main cylinder and 4 main cylinder hold-down bolts that structure is identical that structure is identical.Piston rod is cylindric rod member, piston rod left end is processed with the external thread being connected with two-direction pull press power sensor, the right-hand member of piston rod is processed with right cylinder and the helicitic texture for being fixedly connected with tested main piston, the transparent cylinder that bears vibration damper service pressure that main cylinder is tempered glass material.Tested main piston is arranged on piston rod right-hand member for being fixedly connected with, the tested main piston being arranged on piston rod packs main cylinder into for being slidably connected, insert in the main cylinder hole of main cylinder left end cap and the center pit of main cylinder right end cap successively at the two ends of main cylinder, adopts main cylinder hold-down bolt that main cylinder set nut that 4 structures are identical is identical with 4 structures that main cylinder left end cap, main and main right end cap are fixed.
Secondary cylinder assembly described in technical scheme also includes secondary cylinder upper end cover, air chamber pressure sensor, air chamber valve, air pump, secondary cylinder, bleed screw and air chamber piston.The upper end periphery of secondary cylinder is equipped with as contacting and is connected with the bottom endoporus of secondary cylinder upper end cover, the bottom surface of the bottom endoporus of secondary cylinder upper end cover is connected with the top end face contact of secondary cylinder, between the bottom endoporus of secondary cylinder upper end cover and secondary cylinder upper end, secondary cylinder O-ring seal is installed, air chamber pressure installation of sensors in the endoporus in the left side on secondary cylinder upper end cover top for being threaded, air chamber valve is arranged in the endoporus on right side on secondary cylinder upper end cover top as being threaded, and air chamber valve employing pipeline is connected with air pump; Insert in the circular stepped cavity on secondary cylinder bearing top the lower end of secondary cylinder, the bottom face of secondary cylinder and the periphery of lower end contact with the bottom face of lower end cavity and the inner hole wall of lower end cavity of stepped cavity respectively, between secondary cylinder and the inner hole wall of lower end cavity, there is secondary cylinder O-ring seal, in secondary cylinder, discoid air chamber piston is installed for being slidably connected, the periphery of air chamber piston is provided with the O-ring seal of quality of rubber materials, in the screwed hole of centre of air chamber piston, bleed screw is installed.
Fueller liquid described in technical scheme also includes three-way connection, hydraulic pump and fuel reserve tank.Restoring chamber switch valve is the normally closed electromagnetic switch valve that structure model is identical with compression chamber switch valve, the right-hand member that restores chamber switch valve adopts hydraulic oil pipe to be connected with the left end interface thread of three-way connection, the left end of compression chamber switch valve adopts hydraulic oil pipe to be connected with the right interface thread of three-way connection, the lower end interface of three-way connection adopts hydraulic oil pipe to be connected with the oil-out of hydraulic pump, and the oil-in of hydraulic pump adopts hydraulic oil pipe to be connected with fuel reserve tank.
Compared with prior art the beneficial effects of the utility model are:
1. reciprocating liquid spring unit simulation test device described in the utility model can be realized the simulation of structure and the course of work of monotubular, dual-tube shock absorber, and can carry out the Motion loading of sine or other arbitrary forms, realize the comprehensive attribute testing to reciprocating hydraulic vibration damper.
2. the oil supply system in reciprocating liquid spring unit simulation test device described in the utility model, can before and after test, control and fill and discharge the filling liquid in test unit, simplify the dismounting operation in test, raise the efficiency, avoid filling liquid waste, improve experimental situation.
3. reciprocating liquid spring unit simulation test device described in the utility model is all provided with pressure transducer at recovery chamber, compression chamber and air chamber top, pressure data in can the each chamber of Real-time Collection is that the course of work, influence of damping characteristics, problem produce reason etc. and have vital role for research valve.
4. reciprocating liquid spring unit simulation test device described in the utility model has the structures such as removable left and right end cap, main cylinder and bearing, can adapt to the simulation (test) of various sizes and stroke vibration damper by renewal part, and main cylinder and secondary cylinder adopt transparent tempered glass to make, the convenient course of work of observing in process of the test, finds the problems such as the instantaneous vacuum of chamber.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is the front view of reciprocating liquid spring unit simulation test device structure composition described in the utility model;
Fig. 2 is the axonometric projection view that installs mounting platform in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 3 is the front view of drive unit in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 4 is the front view of sinusoidal load drive unit in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 5 is the front view of test unit main body in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 6 is the front view of left end cap assembly in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 7-a is the front view that installs left support abutment in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 7-b is the left view that installs left support abutment in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 7-c is the vertical view that installs left support abutment in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 8 is the full sectional view on main cylinder assembly front view in reciprocating liquid spring unit simulation test device described in the utility model;
Fig. 9 is the full sectional view on right end cap assembly and secondary cylinder assembly front view in reciprocating liquid spring unit simulation test device described in the utility model;
Figure 10-a is the right view of secondary cylinder bearing in reciprocating liquid spring unit simulation test device described in the utility model;
Figure 10-b is the front view of secondary cylinder bearing in reciprocating liquid spring unit simulation test device described in the utility model;
Figure 10-c is the vertical view of secondary cylinder bearing in reciprocating liquid spring unit simulation test device described in the utility model;
Figure 11 is the front view of fueller in reciprocating liquid spring unit simulation test device described in the utility model;
In figure: 1. drive unit, 2. test unit main body, 3. fueller, 4. device mounting platform, 5. linear electric motors, 6. linear electric motors mandrel, 7. linear electric motors support, 8. two-direction pull press power sensor, 9. linear movement pick-up fixed arm, 10. linear displacement transducer, 11. reducing motor bearings, 12. reducing motors, 13. drive rotating disk, 14. eccentric blocks, 15. slider bar, 16. output shafts, 17. piston rod end caps, 18. piston rod packing assemblies, 19. restore cavity pressure sensor, 20. device left support abutments, 21. main left end caps, 22. main set nuts, 23. piston rods, 24. main pistons, 25. main cylinders, 26. main hold-down bolts, 27. main right end caps, 28. device right support abutments, 29. compression chamber pressure transducers, 30. bottom valves, 31. pipe adapters, a 32. secondary bearing, a 33. secondary hold-down bolt, a 34. secondary upper end cover, 35. air chamber pressure sensors, 36. air chamber valves, 37. pneumatic tubes, 38. air pumps, 39. secondary cylinders, 40. bleed screws, 41. air chamber pistons, 42. hydraulic oil pipes, 43. front beams, 44. centre cross members, 45. rear cross beams, 46. left side beams, 47. the right beams, 48. set nuts, 49. left end cap assemblies, 50. main assemblies, 51. right end cap assemblies, a 52. secondary assembly, 53. main O-ring seals, 54. left end cap set bolts, 55. hold-down bolt fixed orifices, 56. right angle channel, a 57. secondary O-ring seal, 58. bolt of cover holes, 59. right end cap set bolts, 60. restore chamber switch valve, 61. compression chamber switch valves, 62. three-way connections, 63. hydraulic pumps, 64. fuel reserve tanks.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail:
Consult Fig. 1, reciprocating liquid spring unit simulation test device described in the utility model is made up of drive unit 1, test unit main body 2, fueller 3 and device mounting platform 4.
Drive unit 1 is arranged on the left side of device mounting platform 4 upper surfaces, and test unit main body 2 is arranged on the right side of device mounting platform 4 upper surfaces, and fueller 3 is arranged on the lower right of front beam 43, centre cross member 44 and rear cross beam 45 in device mounting platform 4.
Consult Fig. 2, device mounting platform 4 is the tower structure part that the square aluminium section bar with guide-track groove builds by cross section.The top of device mounting platform 4 is that the flat character form structure part of saying is top plane framework, by 3 long beams and 2 short beams by front beam 43, centre cross member 44, rear cross beam 45, left side beam 46 and the right beam 47 form, front beam 43, centre cross member 44 is identical with rear cross beam 45 structures, left side beam 46 is identical with the right beam 47 structures, front beam 43, centre cross member 44 is parallel to each other with rear cross beam 45, left side beam 46 is parallel to each other with the right beam 47, the two ends, left and right that left side beam 46 is arranged on 3 long beams successively with the right beam 47 are for being fixedly connected with, left side beam 46 and the right beam 47 with and and front beam 43, centre cross member 44, rear cross beam 45 is vertical.More close rear cross beam 45 on centre cross member 44 positions.The top plane framework of device mounting platform 4 is installed on the ground by four supporting legs perpendicular to plane framework bottom surface, top, four support leg structures are identical, and the top of four supporting legs all adopts the bottom surface bolt of special right-angle connector and top plane framework to be fixedly connected with.In the guide-track groove on front beam 43, centre cross member 44, rear cross beam 45, left side beam 46 and the right beam 47 tops, be placed with some square nuts that are free to slide, for fixed drive device 1 and test unit main body 2.
Consult Fig. 3, drive unit 1 comprises linear electric motors 5, linear electric motors mandrel 6, linear electric motors support 7, two-direction pull press power sensor 8, linear movement pick-up fixed arm 9, linear displacement transducer 10 and set nut 48.Linear electric motors 5 are fixedly connected on the left side of vertical support wall of linear electric motors support 7 by four bolts of circumference uniform distribution, four jiaos on the horizontal base of electric machine support 7 are distributed with four bolts hole, four bolt passing through bolt hole, be connected with the square nut in the guide-track groove on front beam 43 and rear cross beam 45 tops respectively, linear electric motors 5 are fixed on device mounting platform 4, if release bolt, can promote linear electric motors 5 and electric machine support 7 and slide along guide rail direction, for regulating the left and right position of linear electric motors 5 on device mounting platform 4.
Linear electric motors mandrel 6 is a prismatic long straight thread rod member, and its screw thread is that transmission coordinates with linear electric motors 5 central bore screw threads, and linear electric motors mandrel 6 right-hand members are fixedly connected with two-direction pull press power sensor 8 left side threaded holes.There is set nut 48 that the upper end of linear movement pick-up fixed arm 9 is pressed in the left side plane of two-direction pull press power sensor 8 in two-direction pull press power sensor 8 left sides.The lower end of elongated tabular linear movement pick-up fixed arm 9 is fixedly connected with by screw thread with the sounding rod left end of linear displacement transducer 10.The shell of linear displacement transducer 10 is bolted the square nut in the guide-track groove on centre cross member 44 tops, is fixed on the top end face of centre cross member 44.Because the right-hand member of linear electric motors mandrel 6 is fixed on the upper end of linear movement pick-up fixed arm 9, linear electric motors mandrel 6 cannot rotate, in the time of linear electric motors 5 rotor, linear electric motors mandrel 6 can only move linearly left and right under the effect of screw thread transmission, thereby drives two-direction pull press power sensor 8 and piston rod 23 left and right rectilinear movements.The left end of two-direction pull press power sensor 8 right-hand members and piston rod 23 is threaded connection fixing, in the time that linear electric motors mandrel 6 left and right move linearly, two-direction pull press power sensor 8 can be by pulling force and pressure between piston rod 23 and linear electric motors mandrel 6, the damping force that is test unit output reads out, and by sensor signal lines real-time Transmission out.
Consulting Fig. 4, is the technical scheme of another kind of drive unit 1 shown in figure.Linear electric motors drive scheme in Fig. 3 can, by controlling rotating speed and the torque of linear electric motors 5, obtain the kinetic characteristic of wanting arbitrarily, and operating condition of test is comprehensively abundant.Control complexity but drive, require very high to control accuracy.The drive unit providing in Fig. 4 can significantly be simplified Electric Machine Control process, and can complete the loading of the sinusoidal motion that meets vibration damper national standard.
Drive unit 1 in Fig. 4 is made up of reducing motor bearing 11, reducing motor 12, driving rotating disk 13, eccentric block 14, slider bar 15 and output shaft 16.
Reducing motor 12 is fixed on reducing motor bearing 11 lateral planes by four bolts of circumference uniform distribution, 46 one-tenth parallel relation of the output shaft of reducing motor 12 and left side beam.Four jiaos of the horizontal base of reducing motor bearing 11 are processed with four bolts hole, four bolt passing through bolt hole, respectively with front beam 43 and rear cross beam 45 on square nut in square guide rail link, if release bolt, can promote reducing motor 12 and reducing motor bearing 11 horizontally slips along guide rail, for regulating reducing motor 12 and reducing motor bearing 11 position, left and right on device mounting platform 4.
Discoid driving rotating disk 13 is installed on reducing motor 12 output shafts, is driving rotating disk 13, apart from the position of center of turntable distance H, columned eccentric block 14 is installed.Eccentric block 14 is positioned in the rectangular channel in the slider bar 15 of rectangle, between the rectangular channel in eccentric block 14 external diameters and slider bar 15 for being tightly slidably matched.Slider bar 15 right flanks contact and are fixedly connected with the left side of columned output shaft 16, and slider bar 15 right flanks and columned output shaft 16 are perpendicular, and output shaft 16 right-hand members are threaded with the threaded hole of two-direction pull press power sensor 8 left ends by screw thread.Drive rotating disk 13, eccentric block 14, slider bar 15 and output shaft 16 to form a set of slider-crank mechanism, in the time that reducing motor 12 drives driving rotating disk 13 to rotate, eccentric block 14 slides in slider bar 15, drives slider bar 15 and output shaft 16 to do the sinusoidal to-and-fro movement of level.By adjusting eccentric block 14 apart from the distance that drives rotating disk 13 centers, can regulate the amplitude of sinusoidal motion, control the rotating speed of reducing motor 12, can control frequency and the speed of sinusoidal motion.
Consult Fig. 5, test unit main body 2 is made up of left end cap assembly 49, main cylinder assembly 50, right end cap assembly 51 and secondary cylinder assembly 52.
Left end cap assembly 49 is positioned at the left end of main cylinder assembly 50, and right end cap assembly 51 is positioned at the right-hand member of main cylinder assembly 50, and secondary cylinder assembly 52 is positioned at the top of right end cap assembly 51.
Consult Fig. 6, left end cap assembly 49 includes piston rod end cap 17, piston rod packing assembly 18, recovery cavity pressure sensor 19, device left support abutment 20, main cylinder left end cap 21 and pipe adapter 31.
Device left support abutment 20 adopts the fixed form of linear electric motors support 7 to adopt two to be bolted on front beam 43 and rear cross beam 45.
Piston rod end cap 17 is discoid solid of revolution part, piston rod end cap 17 center is vertically provided with the ring cavity that piston rod packing assembly 18 is installed, the axial both sides of ring cavity are provided with the left and right piston rod through hole that piston rod 23 is installed, and it is seam that the center of piston rod end cap 17 right sides is provided with torus; Left piston rod through-hole, ring cavity, right piston rod through hole and toric axis of rotation conllinear.The torus on piston rod end cap 17 right sides is that seam is equipped with the LC hole of device left support abutment 20 perpendicular wallboard upper ends, and the right side of piston rod end cap 17 is connected and realizes axial location with the left side plane contact of device left support abutment 20 perpendicular wallboard upper ends.The pressure that piston rod packing assembly 18 can reach during according to the viscosity, corrosivity of filling liquid in test timer and test is matched, the seal request while guaranteeing piston rod 23 to-and-fro movement.
Main cylinder left end cap 21 is discoid solid of revolution part, the center of main cylinder left end cap 21 is provided with main cylinder hole and center pit that main cylinder 25 is installed vertically from right to left, the diameter in main cylinder hole is greater than the diameter of center pit, the centre position in main cylinder hole is provided with the ring seal ring recess that main cylinder O-ring seal 53 is installed vertically, main cylinder O-ring seal 53 is arranged on wherein, for the sealing between main cylinder left end cap 21 and main cylinder 25, it is seam that the center of main cylinder left end cap 21 left sides is provided with dome ring body, the axis of rotation conllinear of dome ring body, main cylinder hole and center pit.The left side seam of main cylinder left end cap 21 is equipped with the center pit of device left support abutment 20 perpendicular wallboard upper ends, and the left side of main cylinder left end cap 21 is connected and realizes axial location with the right side plane contact of device left support abutment 20 perpendicular wallboards.The main cylinder Kong Yuzhu cylinder 25 of main cylinder left end cap 21 right-hand members excessively coordinates, and the end face in left side, main cylinder hole is connected with the left side contact of main cylinder 25, realizes the axial location of main cylinder 25.Be processed with the through hole of four circumference uniform distributions at piston rod end cap 17 and device left support abutment 20 correspondence positions, be processed with the tapped blind hole of four circumference uniform distributions at main cylinder left end cap 21 correspondence positions, the left end cap set bolt 54 that four root architectures are identical inserts these through holes and screws in threaded hole, piston rod end cap 17, device left support abutment 20 and main cylinder left end cap 21 is connected and compressed be integrated.
Be threaded and restored cavity pressure sensor 19 in the centre position on device left support abutment 20 tops, can the main cylinder 25 of Real-time Collection in the pressure of piston left chamber, and by the signal wire that restores cavity pressure sensor 19 tops, signal is spread out of.Centre position in device left support abutment 20 bottoms is connected with pipe adapter 31 by pipe thread, and pipe adapter 31 mesopores are connected with main cylinder 25.Pipe adapter 31 belows are connected with can bear the indeformable hydraulic oil pipe 42 of high pressure.
Consult Fig. 7-a to Fig. 7-c, device left support abutment 20 is L shaped structural member, is made up of vertical wallboard and horizontal installing plate, and the center of its vertical wallboard is processed with left manhole, for fixing main cylinder left end cap 21 and piston rod end cap 17.Process vertical tapped through hole on the top of left manhole, restore cavity pressure sensor 19 for installing.Bottom at left manhole is processed with shoulder hole, and the lower end of shoulder hole is processed with pipe thread, and for mounting pipe joint 31, what be connected with the top of threaded hole is minor diameter through hole, and minor diameter through hole is communicated with the left manhole of center.On the vertical wallboard of device left support abutment 20, centered by the axis of rotation of left manhole, around left manhole, be uniformly distributed 4 bolt of cover holes 58.Four angles place at vertical wallboard is processed with respectively four hold-down bolt fixed orifices 55 that structure is identical, for the installation of main cylinder hold-down bolt 26.The horizontal installing plate two ends of device left support abutment 20 are processed with symmetrical U-shaped groove, for being fixedly connected with device mounting platform 4 through bolt.
Consult Fig. 8, main cylinder assembly 50 is made up of 4 identical identical main cylinder hold-down bolts 26 of main cylinder set nut 22, piston rod 23,25 and 4 structures of main cylinder of structure.
Piston rod 23 is the cylindric rod member through intensive treatment, and piston rod 23 left ends are processed with external thread and are fixedly connected with two-direction pull press power sensor right side threaded hole.Piston rod 23 intermediate cylindrical parts adopt carburizing and carry out chromium plating processing to strengthen wearing quality, and its external cylindrical surface coordinates with the 18 endoporus slipper seals of piston rod packing assembly.The right-hand member of piston rod 23 is processed with the structure for being fixedly connected with main piston 24, (tested) main piston 24 is cylindric part, its structure and from the connected mode of piston rod 23 according to the damper type of test and valve architecture is different a different structure.For example, for passive hydraulic buffer, piston rod 23 is solid hopkinson bar, main piston 24 inside are processed with fluid passage, the two ends of main piston 24 are placed with stretching valve block and flowing valve system, piston rod 23 right-hand members are processed with diameter and are less than the column structure of center section and position through main piston 24 central through holes, and piston rod 23 low order ends are processed with screw thread, use nut by fixing main piston 24; For magneto-rheological vibration damper, piston rod 23 is hollow stem, and main piston 24 is for being provided with the magnetic conduction construction of coil, and piston rod 23 right-hand members are processed with external thread, are connected and fixed with main piston 24 left end threaded holes, and wire is drawn by piston rod 23 center pits.The piston ring of quality of rubber materials is installed in the annular groove outside of main piston 24, coordinates for the slipper seal between main piston 24 and main cylinder 25.
Main cylinder 25 is the transparent cylinder of tempered glass material, and internal diameter is smooth, the pressure should be able to bear vibration damper and normally work time and indeformable.Insert respectively in the center pit of main cylinder left end cap 21 and main cylinder right end cap 27 at main cylinder 25 two ends.
In four hold-down bolt fixed orifices 55 of main cylinder hold-down bolt 26 insertion apparatus left support abutments 20 and device right support abutment 28, be threaded with main cylinder set nut 22 at left end, screw main cylinder set nut 22, can between main cylinder left end cap 21 and main cylinder right end cap 27, produce a pretightning force, main cylinder 25 is compressed, ensure main cylinder sealing.
Consult Fig. 9, right end cap assembly 51 is made up of main cylinder right end cap 27, device right support abutment 28, compression chamber pressure transducer 29, bottom valve 30 and secondary cylinder bearing 32.
Secondary cylinder assembly 52 is made up of secondary cylinder hold-down bolt 33, secondary cylinder upper end cover 34, air chamber pressure sensor 35, air chamber valve 36, pneumatic tube 37, air pump 38, secondary cylinder 39, bleed screw 40 and air chamber piston 41.
Device right support abutment 28 is identical with device left support abutment 21 physical dimensions, and device right support abutment 28 adopts the mounting means that linear electric motors support 7 is identical to adopt two to be bolted on front beam 43 and rear cross beam 45.
Main cylinder right end cap 27 is identical with main cylinder left end cap 21 physical dimensions, is discoid solid of revolution part.The dome ring body on main cylinder right end cap 27 right sides is that seam is equipped with the central through hole of device right support abutment 28 vertical wallboard upper ends, and the right side of main cylinder right end cap 27 is connected and realizes axial location with the left side plane contact of device right support abutment 28 vertical wallboards.The left side endoporus of main cylinder right end cap 27 and the right-hand member of main cylinder 25 are equipped with as transition fit, the right side annular end face of the left side endoporus of main cylinder right end cap 27 is connected with the right side contact of main cylinder 25, realize the axial location of main cylinder 25, the interposition of main cylinder right end cap 27 left side endoporus is equipped with an annular seal groove, main cylinder O-ring seal 53 is installed wherein, for the sealing between main cylinder right end cap 27 and main cylinder 25.At the centre position compression chamber pressure transducer 29 that has been threaded on device right support abutment 28 tops, can the main cylinder 25 of Real-time Collection in the pressure of main piston 24 right chamber, and by the signal wire of compression chamber pressure transducer 29 tops, signal is spread out of.Centre position in device right support abutment 28 bottoms is connected with another pipe adapter 31 by pipe thread, the intracavity inter-connection of the central through hole of another pipe adapter 31 and main cylinder 25.Pipe adapter 31 lower ends are connected with can bear the indeformable hydraulic oil pipe 42 of high pressure.
The dome ring body that secondary cylinder bearing 32 passes through left side is that the right-hand member of the right center pit of left side seam and device right support abutment 28 vertical wallboard upper ends is equipped with, the dome ring body of secondary cylinder bearing 32 left side is around connected with the right side contact of the vertical wallboard of device right support abutment 28, realize secondary cylinder bearing 32 along the axial location of main cylinder 25, the inner hole surface that is seam at secondary cylinder bearing 32 dome ring bodies is processed with internal thread hole, for being connected with the external thread of bottom valve 30, the right-hand member of threaded hole is provided with the right side blind hole of minor diameter, the right side blind hole of threaded hole and minor diameter forms annular end face, bottom valve 30 is arranged in threaded hole as being threaded, bottom valve 30 right sides form annular end face contact with threaded hole and the right side blind hole of minor diameter and are connected, realize the axial restraint of bottom valve 30.Bottom valve 30 can have multiple different structure according to the tested damper structure of reciprocating liquid spring unit simulation test device described in the utility model: for example, for traditional passive damper, in bottom valve 30 main body left and right, mounting dampers compressing valve system and surge valve are respectively; And for monotubular shock absorber, can cancel the installation of bottom valve 30.
In the circular stepped cavity on secondary cylinder bearing 32 tops, be vertically installed with the secondary cylinder 39 of transparent toughened glass material, the bottom face of secondary cylinder 39 and the periphery of lower end contact with the bottom face of lower end cavity and the inner hole wall of lower end cavity of stepped cavity respectively, have secondary cylinder O-ring seal 57 to seal between secondary cylinder 39 and the inner hole wall of lower end cavity.The discoid air chamber piston 41 can easy on and off sliding is installed in secondary cylinder 39, and the periphery of air chamber piston 41 is provided with the O-ring seal of quality of rubber materials, ensures that air chamber piston 41 coordinates with the slipper seal between secondary 39.In the screwed hole of centre of air chamber piston 41, bleed screw 40 is installed.
Secondary cylinder 39 upper ends are provided with secondary cylinder upper end cover 34, the bottom endoporus of secondary cylinder upper end cover 34 is equipped with secondary cylinder 39 upper ends, the bottom endoporus of secondary cylinder upper end cover 34 contacts location with secondary cylinder 39 upper end peripheries, the bottom surface of the bottom endoporus of secondary cylinder upper end cover 34 is connected and has realized axial location with the top end face contact of secondary cylinder 39, and between the bottom endoporus of secondary cylinder upper end cover 34 and secondary cylinder 39 upper ends, 57 guarantees of secondary O-ring seal has been installed and seals.Be provided with to left and right two threaded holes at the bottom of the hole of the bottom endoporus of secondary cylinder upper end cover 34, wherein left side threaded hole is pipe thread, be used for installing air chamber pressure sensor 35, the air chamber pressure sensor 35 of installing is the pressure in air chamber in experiments of measuring device in real time, and spread out of by top signal wire.The threaded hole on the right side of secondary cylinder upper end cover 34 is used for connecting air chamber valve 36
Consult Figure 10-a to Figure 10-c, secondary cylinder bearing 32 includes main body and the mounting base of cuboid, the main body of cuboid is positioned at the centre position of mounting base, the main body of cuboid is connected mutual vertically with mounting base, be provided with 2 sections of dome ring bodies with the centre of gyration in the center of (front in other words) left side of rectangular main body, the dome ring body of the minor diameter of foremost (high order end in other words) is as installing and the seam of locating, be provided with 2 sections of horizontal shoulder holes at 2 sections of dome ring body center along continuous straight runs with the centre of gyration, left end is large diameter threaded hole, right-hand member is set to the right side blind hole of minor diameter, the center, upper end of secondary cylinder bearing 32 rectangular main bodys is provided with 3 sections of vertical shoulder holes from top to bottom, 3 sections of ladder blind hole diameter from large to small, on the face of cylinder, lower end of each section of circular hole of 3 sections of vertical shoulder holes, be provided with the annular seal groove that secondary cylinder O-ring seal 57 is installed, guarantee the sealing between secondary cylinder bearing 32 each section of circular holes and secondary cylinder 39,2 sections of horizontal shoulder holes are mutually vertical with the axis of rotation of 3 sections of vertical shoulder holes, and the right-hand member of 2 sections of horizontal shoulder holes is communicated with by right angle channel 56 with the bottom of 3 sections of vertical shoulder holes.Every section of shoulder hole of three sections of shoulder holes of secondary cylinder bearing 32 upper ends is for installing the secondary cylinder 39 of different size according to experiment.On the top end face of the rectangular body of secondary cylinder bearing 32, centered by 3 sections of vertical shoulder holes, be processed with 4 threaded holes in surrounding, for fixed joint cylinder hold-down bolt 33 is installed.The surrounding of the seam of (front in other words) left side of the cuboid main body of secondary cylinder bearing 32 by seam in other words centered by the centre of gyration of threaded hole, be processed with 4 threaded holes.In the assembling of right end cap assembly 51, the right end cap set bolt 59 that four root architectures are identical inserts equally distributed through hole on main cylinder right end cap 27 and with it in the bolt of cover hole 58 on device right support abutment 28 corresponding to position, screw in the threaded hole on secondary cylinder bearing 32 left sides, main cylinder right end cap 27, device right support abutment 28 and a secondary cylinder bearing 32 are connected and compressed be integrated.
The two ends of the mounting base of secondary cylinder bearing 32 are processed with 2 pairs of symmetrical U-shaped grooves, for being fixedly connected with rear cross beam 45 with the front beam 43 of device mounting platform 4 through bolt.After right end cap assembly 51 is installed, the bottom surface of secondary cylinder bearing 32 contacts with front beam 43, centre cross member 44 and the rear cross beam 45 of device mounting platform 4, for supporting secondary cylinder assembly 52.
Consult Figure 11, fueller 3 is made up of hydraulic oil pipe 42, recovery chamber switch valve 60, compression chamber switch valve 61, three-way connection 62, hydraulic pump 63 and fuel reserve tank 64.
Restoring chamber switch valve 60 is the normally closed electromagnetic switch valve that structure model is identical with compression chamber switch valve 61.Restore chamber switch valve 60 left ends and be connected with first pipe adapter 31 plug-in mountings of device left support abutment 20 lower ends by quality of rubber materials and withstand voltage hydraulic oil pipe 42, compression chamber switch valve 61 right-hand members are connected with second pipe adapter 31 plug-in mounting of device right support abutment 28 lower ends by hydraulic oil pipe 42.Restoring chamber switch valve 60 right-hand members is connected with the left and right interface thread of three-way connection 62 by hydraulic oil pipe 42 respectively with compression chamber switch valve 61 left ends.The lower end interface of three-way connection 62 is connected with the oil-out of hydraulic pump 63 by hydraulic oil pipe 42, the lower outlet of hydraulic pump 63 is connected with fuel reserve tank 64 by hydraulic oil pipe 42, and in fuel reserve tank 64, Height of oil can ensure that hydraulic pump 63 classes extract enough fluid at any time from oil storage cylinder 64.
The course of work of reciprocating liquid spring unit simulation test device:
Before experiment, device is prepared and installs:
Carry out before damping characteristic test at reciprocating liquid spring unit simulation test device, first according to content of the test, select the main cylinder 25 measure-alike with subjects, secondary cylinder 39, and select the secondary cylinder piston 41 being mated, main cylinder left end cap 21 and main cylinder right end cap 27.Then select piston rod 23 and main piston 24 to assemble according to experiment content, as required assembling or choice bottom valve 30.
First assemble left end cap assembly 49 and right end cap assembly 51 by assembly relation, and the drive unit choosing 1 (the crank connecting link form in linear electric motors form or Fig. 4 in Fig. 3) and right end cap assembly 51 are fixed on device mounting platform 4.Then the piston rod connecting 23 and main piston 24 are inserted to piston rod packing assembly 18 and be connected with two-direction pull press power sensor 8, after main cylinder 25 and main cylinder left end cap 21 are located, right end cap assembly 51 is promoted to clamp main cylinder 25 left.Then main cylinder hold-down bolt 26 is installed afterwards and is screwed main cylinder set nut 22 and compress main cylinder 25.By pair cylinder 39 and secondary cylinder bearing 32 positioning compressions, in secondary cylinder 39, place secondary cylinder piston 41 after this, now uneasy dress bleed screw 40.
Open and restore chamber switch valve 60 and compression chamber switch valve 61, control hydraulic pump 63 and switch on, to main cylinder 25 interior filling damper fluids, when filling, keep main piston 24 near main cylinder left end cap, guarantee to restore chamber and be first full of, fill without gas.Continue filling fluid, until liquid level reaches secondary cylinder piston 41 central planes, determine main cylinder 25 interior without bubble after, bleed screw 40 is installed.Install after bleed screw 40, continue filling damper fluid, the interior liquid of warranty test apparatus main body 2 meets test demand, in main cylinder 25, can not produce vacuum, also can not make secondary cylinder piston 41 top hypertonia produce and leak.
After having annotated, pair cylinder upper end cover 34 being had good positioning and screw secondary cylinder hold-down bolt 33 compresses secondary cylinder 39.Open afterwards air chamber valve 36, control air pump 38 and regulate the pressure in secondary cylinder piston 41 upper end air chambers to reach the required pressure of simulated experiment, close air chamber valve 36.
Computer accessory drive 1 moves, and main piston 24 is moved to stroke centre position.After static, by two-direction pull press power sensor 8, recovery cavity pressure sensor 19, compression chamber pressure transducer 29 and 35 zero clearings of air chamber pressure sensor.
Vibration damper work simulation experimentation:
Carry out the sinusoidal loading that waits other arbitrary form motions by computer accessory drive, read in real time the suffered pressure of piston rod 23 by two-direction pull press power sensor 8, can obtain the vibration damper output characteristics being formed by main piston 24 and bottom valve 30.Can check whether occur the defects such as parital vacuum by the liquid situation of observing in transparent main cylinder 25 and secondary cylinder 39.Real-time Collection restores the pressure signal that cavity pressure sensor 19, compression chamber pressure transducer 29 and air chamber pressure sensor 35 are measured, can Real-Time Monitoring and record the pressure condition in each chamber, and for adjustment and the design of vibration damper provide foundation.Can extrapolate the fluid flow in each chamber by piston movement speed, be the characteristic relation of flow and pressure thereby also can obtain in real time each valve on main piston 24 and bottom valve 30, for absorber designing is offered help.
Simulated experiment finishes or changes valve:
After experiment finishes, maybe need to change valve while being, first open air chamber valve 36, make the pressure in secondary cylinder piston 41 upper end air chambers return to atmospheric pressure.Then pull down secondary cylinder upper end cover 34 and secondary cylinder hold-down bolt 33, unload bleed screw 40.Now open former chamber switch valve 60 and compression chamber switch valve 61, control hydraulic pump 63 and send the fluid in main cylinder 25 and secondary cylinder 39 back to oil storage cylinder 64, in this process, can drive main piston 24 to-and-fro movements, help the fluid in main cylinder 25 to clean out.After completing, pull down secondary cylinder assembly 52, and pull down main cylinder set nut 22, unclamp the set bolt of right end cap assembly 51, pull down main cylinder 25.Can carry out afterwards dismounting and the replacing of main piston 24 and bottom valve 30.As carry out experiment again, can repeat above installation and experimentation.
Claims (10)
1. a reciprocating liquid spring unit simulation test device, it is characterized in that, described reciprocating liquid spring unit simulation test device includes drive unit (1), test unit main body (2), fueller (3) and device mounting platform (4);
Drive unit (1) is arranged on the left side of device mounting platform (4) upper surface for being fixedly connected with, test unit main body (2) is arranged on the right side of device mounting platform (4) upper surface for being fixedly connected with, the right-hand member of the two-direction pull press power sensor (8) in drive unit (1) is fixedly connected with the left end screw thread of the piston rod (23) in test unit main body (2), fueller (3) is arranged on the lower right of the top plane framework in device mounting platform (4), the left end of the recovery chamber switch valve (60) in fueller (3) adopts hydraulic oil pipe to be connected with first pipe adapter (31) plug-in mounting in test unit main body (2), the right-hand member of the compression chamber switch valve (61) in fueller (3) is connected with second pipe adapter (31) plug-in mounting in test unit main body (2) by hydraulic oil pipe.
2. according to reciprocating liquid spring unit simulation test device claimed in claim 1, it is characterized in that, described drive unit (1) includes linear electric motors (5), linear electric motors mandrel (6), linear electric motors support (7), two-direction pull press power sensor (8), linear movement pick-up fixed arm (9), linear displacement transducer (10) and set nut (48);
It is upper that linear electric motors (5) adopt bolt to be fixedly connected on linear electric motors support (7), and the horizontal base of electric machine support (7) adopts bolt to be fixedly connected with the top plane framework of device mounting platform (4);
Linear electric motors mandrel (6) is arranged in the center pit of linear electric motors (5) as being threaded, the right-hand member of linear electric motors mandrel (6) inserts after the through hole of linear movement pick-up fixed arm (9) upper end with the left end screw thread of the two-direction pull press power sensor (8) on linear movement pick-up fixed arm (9) right side and is fixedly connected with, set nut (48) is sleeved on the linear electric motors mandrel (6) in linear movement pick-up fixed arm (9) left side, set nut (48), linear movement pick-up fixed arm (9) contacts and is connected successively with linear electric motors mandrel (6), the lower end of linear movement pick-up fixed arm (9) is fixedly connected with the sounding rod left end of linear displacement transducer (10), linear displacement transducer (10) adopts bolt to be fixed on the top plane framework of device mounting platform (4), the right-hand member of two-direction pull press power sensor (8) is fixedly connected with the left end screw thread of the piston rod (23) in test unit main body (2).
3. according to reciprocating liquid spring unit simulation test device claimed in claim 1, it is characterized in that, described test unit main body (2) includes left end cap assembly (49), main cylinder assembly (50), right end cap assembly (51) and secondary cylinder assembly (52);
Left end cap assembly (49) is positioned at the left end of main cylinder assembly (50), right end cap assembly (51) is positioned at the right-hand member of main cylinder assembly (50), adopt main cylinder hold-down bolt (26) that main cylinder set nut (22) that 44 structures are identical and 4 structures are identical by the device right support abutment (28) in the device left support abutment (20) in left end cap assembly (49) and right end cap assembly (51) by left end cap assembly (49), main cylinder assembly (50) and right end cap assembly (51) are fixedly connected with, secondary cylinder assembly (52) is arranged on the top of right end cap assembly (51), adopt secondary cylinder hold-down bolt (33) that 4 root architectures are identical secondary cylinder assembly (52) to be fixed on to the top of the secondary cylinder bearing (32) in right end cap assembly (51).
4. according to reciprocating liquid spring unit simulation test device claimed in claim 3, it is characterized in that, described left end cap assembly (49) also includes piston rod end cap (17), piston rod packing assembly (18), restores cavity pressure sensor (19) and main cylinder left end cap (21);
In the left end of the left manhole on the vertical wallboard of piston rod end cap (17) charging apparatus left support abutment (20), piston rod packing assembly (18) packs in the ring cavity in piston rod end cap (17), in the right-hand member of the left manhole on the vertical wallboard of main cylinder left end cap (21) charging apparatus left support abutment (20), piston rod end cap (17), device left support abutment (20) and main cylinder left end cap (21) adopt the identical left end cap set bolt (54) of 4 root architectures to connect as one, the centre position that recovery cavity pressure sensor (19) is arranged on device left support abutment (20) top is for being threaded, first pipe adapter (31) is threaded with the centre position of device left support abutment (20) bottom.
5. according to reciprocating liquid spring unit simulation test device claimed in claim 4, it is characterized in that, described device left support abutment (20) is L shaped structural member, intersect vertically and form by vertical wallboard and horizontal installing plate, vertically the center of wallboard is provided with the left manhole for main cylinder left end cap (21) and piston rod end cap (17) are installed, be processed with the tapped through hole that restores cavity pressure sensor (19) for installing on the top of left manhole, bottom at left manhole is processed with shoulder hole, the lower end of shoulder hole is the threaded hole of mounting pipe joint (31), the top of threaded hole connects promising minor diameter through hole, minor diameter through hole is communicated with the left manhole of center, device left support abutment (20) vertical wallboard on centered by the axis of rotation of left manhole, around left manhole, be uniformly distributed 4 bolt of cover holes (58), be processed with respectively at vertical four angles place of wallboard four structures identical for the hold-down bolt fixed orifice (55) of main cylinder hold-down bolt (26) is installed, the horizontal installing plate two ends of device left support abutment (20) are processed with the symmetrical U-shaped groove for erection bolt.
6. according to reciprocating liquid spring unit simulation test device claimed in claim 3, it is characterized in that, described secondary cylinder bearing (32) is made up of main body and the mounting base of cuboid, the main body of cuboid is positioned at the centre position of mounting base, the main body of cuboid is connected mutual vertically with mounting base, be provided with 2 sections of dome ring bodies with the centre of gyration in the center of rectangular main body left side, the dome ring body of the minor diameter of high order end is as installing and the seam of locating, be provided with 2 sections of horizontal shoulder holes at 2 sections of dome ring body center along continuous straight runs with the centre of gyration, left end is large diameter threaded hole, right-hand member is set to the right side blind hole of minor diameter, the center, top of the rectangular main body of secondary cylinder bearing (32) is provided with 3 sections of vertical shoulder holes from top to bottom, 3 sections of ladder blind hole diameter from large to small, on the face of cylinder, lower end of each section of circular hole of 3 sections of vertical shoulder holes, be provided with the annular seal groove that secondary cylinder O-ring seal (57) is installed, the right-hand member of 2 sections of horizontal shoulder holes is communicated with by right angle channel (56) with the bottom of 3 sections of vertical shoulder holes, on the top end face of the rectangular body of secondary cylinder bearing (32), centered by 3 sections of vertical shoulder hole axiss of rotation, be processed with 4 threaded holes in surrounding, surrounding at the seam of the left side of the cuboid main body of secondary cylinder bearing (32) is processed with 4 threaded holes centered by the centre of gyration of seam, the two ends of the mounting base of secondary cylinder bearing (32) are processed with 2 pairs of symmetrical U-shaped grooves.
7. according to reciprocating liquid spring unit simulation test device claimed in claim 3, it is characterized in that, described right end cap assembly (51) also includes main cylinder right end cap (27), compression chamber pressure transducer (29), bottom valve (30) and secondary cylinder bearing (32);
Device right support abutment (28) is identical with device left support abutment (21) structure, and main cylinder right end cap (27) is identical with main cylinder left end cap (21) structure, is all discoid solid of revolution part;
In the left end of the central through hole on the vertical wallboard of main cylinder right end cap (27) charging apparatus right support abutment (28), in the right-hand member of the central through hole on the vertical wallboard of secondary cylinder bearing (32) charging apparatus right support abutment (28), main cylinder right end cap (27), device right support abutment (28) adopts the right end cap set bolt (59) that 4 root architectures are identical to connect as one with secondary cylinder bearing (32), compression chamber pressure transducer (29) is arranged on the centre position on device right support abutment (28) top for being threaded, second pipe adapter (31) is threaded with the centre position of device right support abutment (28) bottom, bottom valve (30) is arranged in the threaded hole in 2 sections of horizontal shoulder holes on secondary cylinder bearing (32) as being threaded.
8. according to reciprocating liquid spring unit simulation test device claimed in claim 3, it is characterized in that, described main cylinder assembly (50) also includes 4 main cylinder set nut (22), piston rod (23), main cylinder (25) and 4 main cylinder hold-down bolts (26) that structure is identical that structure is identical;
Piston rod (23) is cylindric rod member, piston rod (23) left end is processed with the external thread being connected with two-direction pull press power sensor (8), the right-hand member of piston rod (23) is processed with right cylinder and the helicitic texture for being fixedly connected with tested main piston (24), and main cylinder (25) is the transparent cylinder that bears vibration damper service pressure of tempered glass material;
Tested main piston (24) is arranged on piston rod (23) right-hand member for being fixedly connected with, the tested main piston (24) being arranged on piston rod (23) packs main cylinder (25) into for being slidably connected, insert in the main cylinder hole of main cylinder left end cap (21) and the center pit of main cylinder right end cap (27) successively at the two ends of main cylinder (25), adopts the main cylinder hold-down bolt (26) that main cylinder set nut (22) that 4 structures are identical is identical with 4 structures that main cylinder left end cap (21), main (25) and main right end cap (27) are fixed.
9. according to reciprocating liquid spring unit simulation test device claimed in claim 3, it is characterized in that, described secondary cylinder assembly (52) also includes secondary cylinder upper end cover (34), air chamber pressure sensor (35), air chamber valve (36), air pump (38), secondary cylinder (39), bleed screw (40) and air chamber piston (41);
The upper end periphery of secondary cylinder (39) is equipped with as contacting and is connected with the bottom endoporus of secondary cylinder upper end cover (34), the bottom surface of the bottom endoporus of secondary cylinder upper end cover (34) is connected with the top end face contact of secondary cylinder (39), between the bottom endoporus of secondary cylinder upper end cover (34) and secondary cylinder (39) upper end, secondary cylinder O-ring seal (57) is installed, air chamber pressure sensor (35) is arranged in the endoporus in left side on secondary cylinder upper end cover (34) top as being threaded, air chamber valve (36) is arranged in the endoporus on right side on secondary cylinder upper end cover (34) top as being threaded, air chamber valve (36) adopts pipeline to be connected with air pump (38), insert in the circular stepped cavity on secondary cylinder bearing (32) top the lower end of secondary cylinder (39), the secondary cylinder bottom face of (39) and the periphery of lower end contact with the bottom face of lower end cavity and the inner hole wall of lower end cavity of stepped cavity respectively, between secondary cylinder (39) and the inner hole wall of lower end cavity, there is secondary cylinder O-ring seal (57), in secondary cylinder (39), discoid air chamber piston (41) is installed for being slidably connected, the periphery of air chamber piston (41) is provided with the O-ring seal of quality of rubber materials, in the screwed hole of centre of air chamber piston (41), bleed screw (40) is installed.
10. according to reciprocating liquid spring unit simulation test device claimed in claim 1, it is characterized in that, described fueller (3) liquid also includes three-way connection (62), hydraulic pump (63) and fuel reserve tank (64);
Restoring chamber switch valve (60) is the normally closed electromagnetic switch valve that structure model is identical with compression chamber switch valve (61), the right-hand member that restores chamber switch valve (60) adopts hydraulic oil pipe to be connected with the left end interface thread of three-way connection (62), the left end of compression chamber switch valve (61) adopts hydraulic oil pipe to be connected with the right interface thread of three-way connection (62), the lower end interface of three-way connection (62) adopts hydraulic oil pipe to be connected with the oil-out of hydraulic pump (63), and the oil-in of hydraulic pump (63) adopts hydraulic oil pipe to be connected with fuel reserve tank (64).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420416699.5U CN204008102U (en) | 2014-07-26 | 2014-07-26 | Reciprocating liquid spring unit simulation test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089769A (en) * | 2014-07-26 | 2014-10-08 | 吉林大学 | Reciprocating type liquid shock absorber simulation test device |
| CN104695986B (en) * | 2015-04-02 | 2016-07-13 | 山东科技大学 | A kind of Simple hydraulic support for Equivalent Materials Testing |
| CN114216705A (en) * | 2021-12-09 | 2022-03-22 | 浙江永贵电器股份有限公司 | Simulation debugging method for damping performance of oil pressure shock absorber |
-
2014
- 2014-07-26 CN CN201420416699.5U patent/CN204008102U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089769A (en) * | 2014-07-26 | 2014-10-08 | 吉林大学 | Reciprocating type liquid shock absorber simulation test device |
| CN104089769B (en) * | 2014-07-26 | 2017-02-15 | 吉林大学 | Reciprocating type liquid shock absorber simulation test device |
| CN104695986B (en) * | 2015-04-02 | 2016-07-13 | 山东科技大学 | A kind of Simple hydraulic support for Equivalent Materials Testing |
| CN114216705A (en) * | 2021-12-09 | 2022-03-22 | 浙江永贵电器股份有限公司 | Simulation debugging method for damping performance of oil pressure shock absorber |
| CN114216705B (en) * | 2021-12-09 | 2023-06-13 | 浙江永贵电器股份有限公司 | Damping performance simulation debugging method of oil pressure damper |
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