CN206874744U - A kind of hydraulic pressure magnetic suspension buffer unit - Google Patents

A kind of hydraulic pressure magnetic suspension buffer unit Download PDF

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Publication number
CN206874744U
CN206874744U CN201720678565.4U CN201720678565U CN206874744U CN 206874744 U CN206874744 U CN 206874744U CN 201720678565 U CN201720678565 U CN 201720678565U CN 206874744 U CN206874744 U CN 206874744U
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piston
hydraulic cylinder
oil
magnetic suspension
buffer unit
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CN201720678565.4U
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Chinese (zh)
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应端忠
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Ningbo Yili Industrial Co ltd
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NINGBO YILI SHOCK ABSORBER CO Ltd
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Abstract

The utility model discloses a kind of hydraulic pressure magnetic suspension buffer unit, hydraulic cylinder including closing, piston is provided with hydraulic cylinder, and upper and lower two fluid chambers separated by piston, hydraulic oil is stored in fluid chamber, and the oil-through hole of two fluid chambers is communicated with piston, pillar is additionally provided with piston, pillar is slided at the top of hydraulic cylinder, and post top portion is connected with force bearing plate, magnetic suspension mechanism is provided between piston base and hydraulic cylinder bottom.The utility model is simple in construction, saves space, and a variety of buffering methods are used in combination, and buffering efficiency is good, and cushion effect is non-contact, low impact, mitigate abrasion.

Description

A kind of hydraulic pressure magnetic suspension buffer unit
Technical field
A kind of mechanical cushioning device is the utility model is related to, more specifically, it relates to a kind of hydraulic pressure magnetic suspension buffering dress Put.
Background technology
Operationally, the motion of mechanism typically can all produce either large or small impact and vibrations to plant equipment, to machinery Attachment structure stability and the precision of operating mechanism can all bring adverse effect, if plant equipment combined with human body it is tighter Close, impact and vibrations can more directly contribute discomfort or the infringement of human body, therefore typically can all set buffering to fill in plant equipment Put, to eliminate or weaken above-mentioned various adverse effects.Such as treadmill is reacted on human body again simultaneously to be a kind of by manpower driving Health and fitness facilities, due to run when human body make undulatory motion with having the rhythm and pace of moving things, in the process, joint of lower extremity can bear larger Impact, therefore human body can be then hit by setting buffer unit preferably to relax on a treadmill, mitigate human body strain, Increase the comfortableness run.Buffer unit common structure on treadmill is:Certain bullet is added between frame and force bearing plate Property cushion pad, the elasticity and elastic force of cushion pad press treadmill peak load weight configuration, with meet treadmill it is maximum safely Load.Publication No. CN203564706U utility model discloses a kind of running board of running machine level Four on April 30th, 2014 and delayed Rush structure, including frame and the race plate that is arranged in the frame, the rear end for running plate is provided with locating pad, the plate that runs Middle part has also been independently arranged three-level Buffer Unit and fourth stage buffer structure, and the fourth stage buffer structure is movably arranged on described Between frame and race plate.The utility model is provided with locating pad in the one end for running plate, makes the race plate shape into cantilever design, fully It make use of the elastic force for running plate itself;Three-level Buffer Unit and fourth stage buffer structure are provided with, when running plate stress, by described After the multi-buffer effect of three-level Buffer Unit, big weighing load can be born, and can reach makes cushioning effect stress equal Even and slow effect, while change race plate impetus by adjusting the position of fourth stage buffer structure so as to change the slow of race plate Deflection is rushed, different crowd and the needs of different motions can be met, reaches that bumper and absorbing shock is good, and recoil strength is small, motion is comfortable Effect.But buffer structure provides cushion effect using hard contact power transfer mode in the utility model, and contact point is more, part It is easy to wear.
Utility model content
In buffer structure in existing machinery equipment between bolster and equipment body and inside bolster hard contact site compared with More, the assembling that involves, fixed structure are relative complex, are more easy to generation part wear problem, and cushioning effect direction is easily scattered and shadow Buffering efficiency is rung, to overcome these defects, the utility model provides that a kind of hard contact site is less, and simple in construction, buffering is made It is accurate with direction, the higher hydraulic pressure magnetic suspension buffer unit of buffering efficiency.
The technical solution of the utility model is:A kind of hydraulic pressure magnetic suspension buffer unit, include the hydraulic cylinder of closing, hydraulic pressure Piston, and upper and lower two fluid chambers separated by piston are provided with cylinder body, hydraulic oil, piston are stored in fluid chamber On be communicated with the oil-through holes of two fluid chambers, pillar is additionally provided with piston, pillar is slided at the top of hydraulic cylinder, pillar Top is connected with force bearing plate, and magnetic suspension mechanism is provided between piston base and hydraulic cylinder bottom.Magnetic suspension mechanism can produce counter and live The magnetic force declined is filled in, hydraulic oil also can be in the presence of external pressure by piston press, and then produces hydraulic pressure confrontation external impact Power, therefore the utility model is to provide buffer power by the way of magnetic repulsive force is combined with fluid drag.Due to work Medium is invisible magnetic field and unsetting fluid, therefore compared with the bolsters such as traditional spring, can greatly reduce assembling, peace The structures such as dress, so as to compress overall structure space hold.Meanwhile magnetic repulsive force and the transfer mode of fluid drag are flexibility Conduction, therefore compared to common spring buffer structure, have during utility model works it is obvious non-contact, low abrasion it is excellent Point.All more concentrate in addition, thrust when magnetic repulsive force, piston float in the utility model is pointed to, be accurate, not like spring meeting Cushioning effect power is caused to be disperseed because deflecting, distorting, also will not be rapid like that to spring, therefore the utility model can by force-responsive Higher buffering efficiency is provided.
Preferably, being provided with one-way fluid damping unit at oil-through hole, one-way fluid damping unit includes being located at piston bottom The one-way turnover in portion, one-way turnover are hinged on upper piston, and one-way turnover is provided with turnover panel oil-through hole, and turnover panel oil-through hole was less than Oilhole and overlapping with oil-through hole.And one-way fluid damping unit can slow down automatic adjusument flowing of the hydraulic oil to pressure difference, can enter One step strengthens cushioning effect.When external pressure is delivered on piston by force bearing plate, pillar, lower fluid chamber pressurization, feedback oil Pressure also rapidly increases, and the situation that lower fluid chamber oil pressure is more than upper fluid cavity volume oil pressure is formed in a period of time, is unidirectionally turned over around here Plate is close to piston, therefore the higher pressure hydraulic oil in lower fluid chamber can only be by smaller by lower fluid chamber oil pressure actuated Turnover panel oil-through hole enters upper fluid cavity volume to seek pressure release approach, and less turnover panel oil-through hole slow down upper and lower fluid chamber oil The rebalancing of pressure, meanwhile, as lower fluid chamber hydraulic oil constantly enters upper fluid cavity volume, upper fluid cavity volume progressively expands, It will be pushed away under piston, and moving down with piston, the magnetic repulsive force gradually enhancing again between piston and hydraulic cylinder bottom, prevent The upper and lower quick releveling of fluid chamber oil pressure, strengthen cushioning effect.Conversely, after outside distress resolves, in magnetic repulsive force and In the presence of upper and lower fluid chamber oil pressure difference, one-way turnover is pushed away piston by upper fluid cavity volume oil pressure, and oil-through hole opens wide, upper The hydraulic oil of body cavity volume accelerates to flow into lower fluid chamber from bigger oil-through hole, recovers initial equilibrium conditionses rapidly, piston returns to Initial height.
Preferably, described magnetic suspension mechanism includes upper magnetic part and magnetic part, upper magnetic part is fixedly arranged on piston bottom Portion, magnetic part are fixedly arranged on hydraulic cylinder bottom, and the like pole of upper magnetic part and magnetic part is relative.Like pole is relative Upper magnetic part and magnetic part can prevent piston and hydraulic cylinder bottom close, in piston and hydraulic cylinder bottom installation magnetic part Than directly having more production operation with magnetic material making piston and hydraulic cylinder bottom.
Preferably, force bearing plate bottom is additionally provided with top spring, top spring is in parallel with hydraulic cylinder.Top spring is combined with hydraulic cylinder to be made With, using magnetic repulsive force, fluid drag and spring force combination by the way of buffer power is provided, buffer is more rich Richness, buffering effect are more preferable.
Preferably, hydraulic cylinder is symmetrical arranged, top spring is centrally placed between hydraulic cylinder.Hydraulic cylinder is symmetrical arranged, Mechanical balance can be better achieved in spring mechanics placed in the middle, such a layout structure.
As an alternative, top spring is symmetrical arranged, and hydraulic cylinder is centrally placed between the spring of top.This is also that one kind can preferably realize power Learn the layout structure of balance.
Preferably, leave air gap at the top of the fluid chamber of top.Hydraulic cylinder using air-fuel mixture medium as working media, Both stronger cushion effect can be produced, there is higher compression ratio again, buffering effect is more preferable.
The beneficial effects of the utility model are:
A variety of buffering methods are used in combination, and buffering efficiency is good.The utility model is using magnetic repulsive force and fluid drag With reference to mode buffer power is provided, buffer is enriched, while the response for the attack that liquidates is more gentle, cushioning effect power side To concentrate, it is accurate, therefore it is preferable to buffer efficiency.
Cushion effect is non-contact, low impact, mitigates abrasion.The magnetic repulsive force and fluid of cushion effect are formed in the utility model The transfer mode of drag is flexible conductor, has the advantages of obvious non-contact, low impact, low abrasion during work.
It is simple in construction, save space.Working media of the present utility model is invisible magnetic field and unsetting fluid, therefore Compared with the bolsters such as traditional spring, the structures such as assembling, installation can be greatly reduced, so as to compress overall structure space hold.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of structural representation of hydraulic cylinder in the utility model;
Fig. 3 is another structural representation of the present utility model.
In figure, 1- hydraulic cylinders, 2- bottom plates, 3- pistons, the upper magnetic parts of 4-, 5- magnetic parts, 6- fluid chambers, 7- loads Plate, 8- oil-through holes, 9- one-way turnovers, 10- turnover panel oil-through holes, 11- tops spring, 12- pillars.
Embodiment
The utility model is described in further detail for specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of hydraulic pressure magnetic suspension buffer unit, for the hydraulic cylinder 1 of treadmill, including closing, Hydraulic cylinder 1 includes casing wall, bottom plate 2, it is characterized in that being provided with the piston 3 parallel with bottom plate 2 in hydraulic cylinder 1, piston 3, which slides, to be connected It is connected on casing wall, bottom plate 2 is fixed on casing wall bottom, and piston 3, casing wall, bottom plate 2 enclose upper and lower two fluid chambers 6, fluid Hydraulic oil is stored in cavity volume 6, the oil-through hole 8 of two fluid chambers 6 is communicated with piston 3, pillar is additionally provided with piston 3 12, pillar 12 slides to abut through the top of hydraulic cylinder 1, the top of pillar 12 with a force bearing plate 7, and the force bearing plate 7 is treadmill Race plate, the bottom of piston 3 is provided with upper magnetic part 4, and the top of bottom plate 2 is provided with magnetic part 5, the N of upper magnetic part 4 and magnetic part 5 Extremely relative, upper magnetic part 4 and magnetic part 5 form a magnetic suspension mechanism, and upper magnetic part 4 and magnetic part 5 are by 60 magnetic Bloom is arranged to make up.One-way fluid damping unit is provided with oil-through hole 8.The one-way fluid damping unit includes being located at piston 3 The one-way turnover 9 of bottom, one-way turnover 9 are hinged on upper piston 3, and one-way turnover 9 is provided with turnover panel oil-through hole 10, and turnover panel is excessively oily Hole 10 is less than oil-through hole 8 and overlapping with oil-through hole 8.The bottom of force bearing plate 7 is additionally provided with top spring 11, and top spring 11 is in parallel with hydraulic cylinder 1. Hydraulic cylinder 1 is two and is symmetrical arranged that top spring 11 is one, and top spring 11 is centrally placed between hydraulic cylinder 1.The fluid of top Leave air gap in the top of cavity volume 6.
When the pressure applied during running on a treadmill is delivered on piston 3 by force bearing plate 7, pillar 4, the fluid of lower section Cavity volume 6 is pressurizeed, and feedback oil pressure also rapidly increases, and fluid of the pressure of fluid chamber oil 6 more than top of lower section is formed in a period of time The situation of the oil pressure of cavity volume 6, around here one-way turnover 9 piston 3, therefore the fluid of lower section are close to by the oil pressure actuated of fluid beneath cavity volume 6 Higher pressure hydraulic oil in cavity volume 6 can only enter upper flow cavity volume 6 to seek pressure release way by smaller turnover panel oil-through hole 10 Footpath, less turnover panel oil-through hole slow down the rebalancing of the upper and lower oil pressure of fluid chamber 6, meanwhile, with lower fluid chamber hydraulic pressure Oil constantly enters upper flow cavity volume 6, and upper fluid cavity volume 6 progressively expands, and will be pushed away under piston 6, and moving down with piston 3, on Magnetic repulsive force gradually enhancing again between magnetic part 4 and magnetic part 5, prevents the oil pressure of fluid chamber 6 of upper and lower from quickly putting down again Weighing apparatus, strengthen cushioning effect.Conversely, after distress resolves are trampled in running, it is poor in magnetic repulsive force and the oil pressure of upper and lower fluid chamber 6 In the presence of, one-way turnover 9 is pushed away piston by the oil pressure of fluid chamber 6 of top, and oil-through hole 8 opens wide, the hydraulic pressure of upper fluid cavity volume 9 Oil accelerates to flow into the fluid chamber 6 of lower section from bigger oil-through hole 8, recovers initial equilibrium conditionses rapidly, piston returns to initial height Degree.
Embodiment 2:
As shown in figure 3, the S of upper magnetic part 4 and magnetic part 5 is extremely relative.Top spring 11 is two and is symmetrical arranged, hydraulic cylinder Body 1 is centrally placed between the spring 11 of top.Remaining is the same as embodiment 1.
Embodiment 3:
Piston 3 and bottom plate 2 are made of magnetic material, and piston 3 and the N of the bottom of hydraulic cylinder 1 are extremely relative.Remaining is the same as real Apply example 1.

Claims (8)

1. a kind of hydraulic pressure magnetic suspension buffer unit, include the hydraulic cylinder of closing(1), hydraulic cylinder(1)It is interior to be provided with piston(3), And by piston(3)Upper and lower two fluid chambers separated(6), fluid chamber(6)In store hydraulic oil, it is characterized in that living Plug(3)On be communicated with two fluid chambers(6)Oil-through hole(8), piston(3)On be additionally provided with pillar(12), pillar(12)It is sliding It is dynamic to run through hydraulic cylinder(1)Top, pillar(12)Top is connected with force bearing plate(7), piston(3)Bottom and hydraulic cylinder(1)Bottom Between be provided with magnetic suspension mechanism.
2. hydraulic pressure magnetic suspension buffer unit according to claim 1, it is characterized in that oil-through hole(8)Place is provided with one-way fluid and hindered Buddhist nun's device, the one-way fluid damping unit include being located at piston(3)The one-way turnover of bottom(9), one-way turnover(9)It is hinged on Piston(3)On, one-way turnover(9)It is provided with turnover panel oil-through hole(10), turnover panel oil-through hole(10)Less than oil-through hole(8)And with it is excessively oily Hole(8)It is overlapping.
3. hydraulic pressure magnetic suspension buffer unit according to claim 1, it is characterized in that described magnetic suspension mechanism includes upper magnetic Property part(4)With magnetic part(5), upper magnetic part(4)It is fixedly arranged on piston(3)Bottom, magnetic part(5)It is fixedly arranged on hydraulic cylinder (1)Bottom, upper magnetic part(4)With magnetic part(5)Like pole it is relative.
4. hydraulic pressure magnetic suspension buffer unit according to claim 1, it is characterized in that piston(3)And hydraulic cylinder(1)Bottom Portion is made of magnetic material, and piston(3)And hydraulic cylinder(1)The like pole of bottom is relative.
5. hydraulic pressure magnetic suspension buffer unit according to claim 1, it is characterized in that force bearing plate(7)Bottom is additionally provided with top spring (11), push up spring(11)With hydraulic cylinder(1)It is in parallel.
6. hydraulic pressure magnetic suspension buffer unit according to claim 5, it is characterized in that hydraulic cylinder(1)It is arranged in pairs, pushes up spring (11)It is centrally placed in hydraulic cylinder(1)Between.
7. hydraulic pressure magnetic suspension buffer unit according to claim 1, it is characterized in that top spring(11)It is arranged in pairs, hydraulic cylinder (1)It is centrally placed in top spring(11)Between.
8. hydraulic pressure magnetic suspension buffer unit according to any one of claim 1 to 7, it is characterized in that the fluid chamber of top (6)Leave air gap in top.
CN201720678565.4U 2017-06-12 2017-06-12 A kind of hydraulic pressure magnetic suspension buffer unit Active CN206874744U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401579A (en) * 2017-06-12 2017-11-28 宁波力减震器有限公司 A kind of hydraulic pressure magnetic suspension way to play for time and its application apparatus
CN109432695A (en) * 2018-11-27 2019-03-08 南安紫鲸铃工业设计有限公司 A kind of treadmill running style foothold auxiliary correcting device of body shaping fat reducing
CN112112121A (en) * 2020-09-21 2020-12-22 安徽禹溪水利工程有限公司 Protection baffle guardrail of dyke protection self-adaptation absorption stress electricity generation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107401579A (en) * 2017-06-12 2017-11-28 宁波力减震器有限公司 A kind of hydraulic pressure magnetic suspension way to play for time and its application apparatus
CN109432695A (en) * 2018-11-27 2019-03-08 南安紫鲸铃工业设计有限公司 A kind of treadmill running style foothold auxiliary correcting device of body shaping fat reducing
CN112112121A (en) * 2020-09-21 2020-12-22 安徽禹溪水利工程有限公司 Protection baffle guardrail of dyke protection self-adaptation absorption stress electricity generation

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CP01 Change in the name or title of a patent holder

Address after: No.66 Chunxiao xunhai Road, Beilun District, Ningbo City, Zhejiang Province

Patentee after: Ningbo Yili Industrial Co.,Ltd.

Address before: No.66 Chunxiao xunhai Road, Beilun District, Ningbo City, Zhejiang Province

Patentee before: NINGBO YILI SHOCK ABSORBER Co.,Ltd.