CN103550872B - A kind of two-way change rail descending lifeline damping unit - Google Patents
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Abstract
A kind of two-way change rail descending lifeline damping unit, comprise box body, axis, driving-disc, centrifugal body, push rod, the change rail slideway of pull bar and interpolation lubricating oil, centrifugal body runs in change rail slideway, it is characterized in that: driving-disc promotes centrifugal body when moving in a circle, each centrifugal body is by inner side slideway, mutually pushing away between the inhibition of the projection on outboard runner or centrifugal body, draw effect, constantly outside, alternately change running orbit inwards, the actual motion track of the centrifugal body weight heart is no longer level and smooth circumference, but rounded closed wave or sigmoid curve, the normal pressure of slideway suffered by centrifugal body can produce a component and play damping action to driving-disc.Centrifugal body can be steel ball, cylinder or slide block, and motion mode is for rolling or sliding.Damping unit of the present invention each parts stress equalization, impact little, wear and tear little, the very prominent mountain of damping and reliability, not by the impact of water, wet goods lubricant medium, can use ordinary metallic material, manufacturing cost is lower.
Description
Technical field
The present invention relates to a kind of high-altitude slow-descending equipment, be specifically related to a kind of two-way change rail descending lifeline damping unit.
Background technology
The slow descending device that high-altitude lifesaving slow descender of the prior art or other occasion use, majority makes to produce frictional force between friction pair by the centrifugal force of rotary part, and the rotary speed of restriction rope winding mechanism, reaches slow and fall object.Because centrifugal force is directly proportional to linear velocity square, if so want to obtain enough centrifugal force and frictional force, just must have enough rotating speeds, and high rotating speed just needs the speed increasing mechanism compared with big speed ratio.Secondly, after the radius of gyration is determined, square being directly proportional of centrifugal force and angular speed or rotating speed, when rotating speed is lower centrifugal force very little, act on not obvious, can accelerate when rotating speed increases to increase, so do not add speed increasing mechanism, effect and the damping of centrifugal force are not reflected.If select to limit rotating speed with the centrifugal force mechanism that it doesn't matter, the resistance of descending lifeline initial start stage certainly will be caused excessive, even due to the factors such as on the shelf, corrosion for a long time, dust cause less weight or body weight comparatively the lighter cannot fall.In addition, majority utilize the descending lifeline of frictional damping all water funk, be afraid of oil, once have water, wet goods medium enters, damping function significantly reduces, and the even slow effect of falling was lost efficacy.
Non-friction type descending lifeline also has multiple, differs from one another.As utilized the descending lifeline of hydraulic damper, air damping device, its structure is more complicated, and requirement on machining accuracy is higher, and cost is also higher.Some descending lifelines are because of stressed unreasonable between critical piece, and interaction force, impulsive force are comparatively large, and thus select high duty alloy material, cost is high.Some descending lifeline force analysis are not comprehensive, though have damping action in the circular motion at 360 degree of angles, also have the accelerating function and side effect of not paying attention to, integral damping effect may be had a greatly reduced quality.The descending lifeline also had together falls with whereabouts person, speeds control is realized by manual control, but as high-altitude escape slow descent device, can not everyone can apart from often operating slow descending device under flurried, nervous, panic states, now can guarantee that slow the falling of safety is topmost and the most basic design object, operation is simple may be more practical.
Do the object of uniform circular motion, centripetal force (making a concerted effort of external force) makes it to produce centripetal acceleration, the time changing direction of motion, but does not do work.When object change running orbit, to the inside or lateral offset and when doing curvilinear motion situation then different, wherein object to bias internal, reduce the radius of gyration, formed helical trajectory time need external force to do work; Object outwards offsets, and also needs external force to do work when another circle or spiral path run along outside.So, force to impel object to move in a circle, on one side inside, outwards repeatedly offset, alternately change running orbit, will damping action be produced, Here it is Technology design main thought of the present invention.
Summary of the invention
The object of the invention is to: a kind of two-way change rail descending lifeline damping unit is provided, and realizes following target:
1. arrange on the circumference orbit that centrifugal body is original and become rail slideway or other limiting mechanism, pressure impels centrifugal body outwards, inwardly repeatedly offset, alternately change running orbit, actual motion track is made to be no longer level and smooth circumference, but rounded closed wave or sigmoid curve, and therefore producing dirt damping action, damping is obvious, and stable, reliable, wear and tear little, impact little, long service life;
2. damping unit can inject lubricating oil, is not namely afraid of oil, not water funk, can also prevent corrosion simultaneously, reduce wear;
3. general structure is simple, low cost of manufacture.
The present invention adopts following technical scheme:
A kind of two-way change rail descending lifeline damping unit, comprise box body, axis, driving-disc, centrifugal body, push rod, pull bar, inject the change rail slideway of lubricating oil, wherein, driving-disc and axis are fixed and are assembled and can rotate in box body, the gear of axis and cable drum or rope winding mechanism or its speed increasing mechanism assembles and rotates thereupon, become rail slideway and be fixed on tray interior, become rail slideway and comprise inner side slideway, outboard runner, inner side slideway, the surface of outboard runner is provided with equally distributed projection, in wavy or be provided with the peripheral curved of fin knuckle, centrifugal body distributes in a circumferential direction symmetrically and evenly, and assemble with driving-disc movable contact or activity, driving-disc promotes centrifugal body and runs in change rail slideway when rotating, technical measures is: constantly outside when centrifugal body is moved in a circle, alternately change the direction of motion and running orbit inwards, the actual motion track of the centrifugal body weight heart is rounded closed round and smooth wave or sigmoid curve, any one centrifugal body inwardly comprises in the wave doing one-period circulation or sigmoid curve motion process, become rail outside twice, and the change rail motion at least to a direction (inside or outside) is what to have been come by the upward slope section curved surface of the projection on a slideway, change rail motion to another direction has then been come by the convex curvature of another slideway or has been come by the thrust between two centrifugal bodies of symmetry or pulling force.
Further, become rail slideway and can be more than 2 groups, all be positioned on same circumference cross section, and concentric, the centrifugal body of correspondence is more than 2 groups, and often group change rail slideway comprises inner side slideway and outboard runner, jointly realizes inside, the outside two way alternate of centrifugal body become rail motion by medial and lateral slideway, driving-disc is provided with drive pin, to reach respectively in slideway and to promote centrifugal running body.
Further, when the convex cross section shape becoming rail slideway is into arc line shaped, become the closed circle that rail slideway entirety is round and smooth wave or sigmoid curve formation, to be subject to the normal pressure of rail walls more balanced for centrifugal body in such cases, and instant impact is less.The convex cross section shape becoming rail slideway into isosceles triangle or isosceles trapezoid and two protruding adjacent time, become the closed circle that rail slideway is formed into broken line, suffered by centrifugal body, instant impact is relatively large, but change rail slideway is easy to processing and manufacturing.
Further, the inner side slideway of change rail slideway is desirable to disappear, only outboard runner is set, the protruding number of outboard runner is odd number (namely 3, 5, 7, 9 etc.), the central point of any one projection and two of opposite protruding intermediate points are all on same diameter line, also must make every two symmetrical direct movable contacts of centrifugal body simultaneously, or by a push rod movable contact, the total length of after contact two centrifugal bodies is less than or equal to the difference of the most imperial palace of outboard runner through value and a protruding maximum height value, any all equal with the spacing of two intersection points of slideway by the diameter line of axis, synchronously promote another centrifugal body when the projection of outboard runner makes one of them centrifugal body change running orbit to the inside and change running orbit laterally, and make two centrifugal bodies alternately do same motion.
Further, when outboard runner is only set, pure friction-type damping mode can be adopted, the outboard end of two block centrifugal bodies is circular arc, rail slideway inwall movable contact is become with outside, two centrifugal body medial ends contact with each other, and the total length of after contact two centrifugal bodies is less than or equal to the difference of the most imperial palace of outboard runner through value and a protruding maximum height value.Only have thrust because of between two centrifugal bodies, also can be made of one structure, the elongated hole of position, intermediate portion and axis activity are assembled.
Further, when only arranging outboard runner, also can adopt columniform centrifugal body roller damping mode, be provided with groove in the middle of the face of cylinder of each centrifugal body, assemble with the opening activity of driving-disc, two centrifugal bodies all roll along outboard runner.A push rod is provided with between two cylindrical centrifugal bodies, elongated hole in the middle of push rod and axis activity are assembled, push rod both sides are circular arc, and body centrifugal with two contacts respectively, and the total length of after contact two centrifugal bodies is less than or equal to the difference of the most imperial palace of outboard runner through value and a protruding maximum height value.Centrifugal body can be 4, and every two is one group, and still by push rod movable contact, two push rods are right-angled intersection overlap or are assemblied in driving-disc both sides.
Further, an inner side slideway is only set in whole damping unit, and the protruding number of inner side slideway is odd number, and be uniformly distributed, the central point of any one projection and two of opposite protruding intermediate points are all on same diameter line, centrifugal body runs along inner side ramp surface, connected by a pull bar between every two symmetrical centrifugal bodies simultaneously, namely the two ends of pull bar are assembled with two centrifugal bodies respectively, the spacing of two centrifugal bodies after connection remains unchanged, and it is minimum outer through value and a protruding maximum height value sum to be more than or equal to inner side slideway, any all equal with the spacing of two intersection points of slideway by the diameter line of axis, another centrifugal body is synchronously pulled to become rail to the inside when the projection of inner side slideway makes one of them centrifugal body become rail laterally, and two centrifugal bodies alternately do same motion.Only have pulling force because of between two centrifugal bodies, also can be made of one structure, the elongated hole of position, intermediate portion and axis activity are assembled.
Further, centrifugal body can be several spheroids (steel ball), cylinder or slide block, and motion mode is for rolling or sliding.
Further, become in rail slideway and inject lubricating oil, mainly peventing member corrosion, to reduce wear.
Accompanying drawing explanation
The front view of Fig. 1: 1 group of medial and lateral slideway assembling schematic diagram;
The front view of Fig. 2: 2 groups of medial and lateral slideway assembling schematic diagrames;
Fig. 3: 1 group of medial and lateral slideway driving-disc A structural representation;
Fig. 4: outboard runner cylindrical centrifugal body roller assembling schematic diagram;
Fig. 5: the front view of outboard runner cylindrical centrifugal body roller driving-disc B;
Fig. 6: cylindrical centrifugal body structure schematic diagram;
Fig. 7: pusher structure schematic diagram;
Fig. 8: the block centrifugal body slidingtype assembling schematic diagram of outboard runner;
Fig. 9: the block centrifugal body slidingtype driving-disc C-structure schematic diagram of outboard runner;
Figure 10: block centrifugal body structure schematic diagram;
Figure 11: weight shape centrifugal body A structural representation;
Figure 12: inner side slideway weight shape centrifugal body B slidingtype assembling schematic diagram;
The front view of Figure 13: inner side slideway weight shape centrifugal body B slidingtype driving-disc D;
Figure 14: weight shape centrifugal body B and general pin assembling schematic diagram;
Figure 15: projection is isosceles trapezoid outboard runner schematic diagram.
In each figure: 1: box body, 2: axis, 3: driving-disc A, 4: drive pin, 5: become rail slideway, 6: inner side slideway, 7: outboard runner, 8: the centrifugal body of round bead shape, 9: cylindrical centrifugal body, 10: block centrifugal body, 11: push rod, 12: push rod elongated hole, 13: groove, 14:U shape opening, 15: triangle or trapezoidal fin, 16: the centrifugal body A of weight shape, 17: centrifugal body elongated hole, 18: radius, 19: pull bar, 20: general pin, 21: the centrifugal body B of weight shape, 22: driving-disc B, 23: driving-disc C, 24: driving-disc D.
Detailed description of the invention
Concrete structure and the operation principle of a kind of two-way change rail descending lifeline damping unit that the present invention proposes are described below in conjunction with Fig. 1 to Figure 15.
Embodiment 1: inner side slideway, outboard runner become rail mode jointly
As Fig. 1, shown in Fig. 3, an inner side surface of box body is processed a wavy annular and becomes rail slideway 5, processing method can adopt the modes such as milling machine processing or die-casting process, become rail chute width 15.1mm, shape of cross section is rectangle, two peripheral curved becoming rail slideway are made up of inner side slideway 6 and outboard runner 7, in whole change rail passage, two planes vertical with axial line are made up of box body side and driving-disc A3, the centrifugal body 8 (steel ball) of round bead shape or the cylindrical centrifugal body 9 (roller) of diameter 15mm is loaded in slideway, driving-disc A3 and axis 2 are fixed and are assembled, the side of driving-disc A3 is provided with 4 drive pins 4.Drive pin 4 inserts and becomes in rail slideway 5, because of its diameter less (6mm), when moving in a circle and the projection of inside and outside slideway contactless.When driving-disc A3 rotates, promote steel ball or roller by drive pin 4 and roll, when steel ball or roller run into inner side slideway or outboard runner protruding, outwards or inwardly can become rail, and produce the drag effect to drive pin.Rotating speed is higher, and damping action is stronger; The protruding gradient is larger, and damping action is larger; The quality of steel ball or roller is larger, and damping action is larger, finally arrives balance, and weight or human body at the uniform velocity fall.
In FIG, centrifugal body inwardly becomes the actual motion track of rail into N curve, and the actual motion track outwards becoming rail is W curve.Q is the tangential direction of the centrifugal body weight heart relative to axle center.
Embodiment 2:2 group inner side slideway, outboard runner concentric arrange and become rail mode
As shown in Figure 2, adopt two change rail slideway, damping action then increases and is twice above, can reduce the rotating speed of driving-disc and corresponding gearratio, but overall dimension increases.Now, the drive pin then corresponding increase by a group of driving-disc, inserts in respective change rail slideway respectively.
Embodiment 3: outboard runner, centrifugal body promote to become rail mode mutually
When the diameter of steel ball or roller is larger, limit by overall dimension and weight, the size of inner side slideway can be less, the pressure of protruding suffered centrifugal body more greatly and more concentrated, wear and tear relatively large, therefore also can cancel sideslip road, but other mechanism must be increased synchronously could realize two-way change rail.
In fig. 1 and 2, the projection of inner side slideway 6 only can make centrifugal body become rail laterally, the projection of outboard runner 7 can only make centrifugal body become rail to the inside, so after cancelling inner side slideway 6, centrifugal body can only become rail to the inside, when flying along the transient motion direction of this position after centrifugal running body to protruding peak, when the curve track again along contact point after the outboard runner 7 arriving at front runs, so process just achieves one direction become rail.The measure realizing two-way change rail into: the protruding number of outboard runner is necessary for odd number, namely protruding number is 3, 5, 7, 9, 11 etc., and be uniformly distributed, as Fig. 4, shown in Fig. 8, then two of the central point of any one projection and opposite protruding intermediate points are all on same diameter line, make every two symmetrical direct movable contacts of centrifugal body (Fig. 8) again, or be made of one structure (10-a in Figure 10), or by push rod 11 movable contact (Fig. 4), synchronously promote another centrifugal body when the projection of outboard runner 7 makes one of them centrifugal body become rail to the inside and become rail laterally, and two centrifugal bodies alternately do same motion.Now, the strength impelling one of them centrifugal body outwards to become rail is appended to opposite and inwardly becomes on another centrifugal body of rail, its damping action to driving-disc is increased and is twice.
As Fig. 4, Fig. 5, shown in Fig. 6 and Fig. 7, centrifugal body selects two to namely 4 (also can select a pair that is 2) cylindrical centrifugal bodies 9, the groove 13 of intermediate position is utilized to be assemblied in the U-shaped opening 14 of driving-disc B22, by the assembling of push rod 11 (sheet) movable contact formula between often pair of cylindrical centrifugal body 9, cylindrical centrifugal body 9 under the promotion of driving-disc B22 along outboard runner wall rolling-operation, outwards rail is become by the synchronous centrifugal body promoting opposite of push rod 11 when a cylindrical centrifugal body 9 runs into protruding inwardly change rail, realize double damping action, and two centrifugal bodies alternately repeat this motion.Push rod elongated hole 12 in the middle of push rod 11 assembles with axis 2 activity, and push rod does linear reciprocating motion while following driving-disc B22 rotation.
In the diagram, Q1 is centrifugal body circular motion instantaneous tangents direction, and N curve is that it is rolled to the actual motion track before protruding peak, and Q2 is that centrifugal body is rolled to protruding peak transient motion tangential direction, G is centrifugal body inertia motion direction, and W curve is actual outwards change rail track.
As shown in Fig. 8, Fig. 9 and Figure 10, block centrifugal body 10 assembles with driving-disc C23 activity, the planform of driving-disc C23 is channel steel shape, block centrifugal body 10 can only radial direction be moved back and forth, be pure friction-type between block centrifugal body 10 and outboard runner 7, the principle realizing two-way change rail is identical with the roller shown in Fig. 4, and difference is: be directly contact between two centrifugal bodies 10 of bulk.In fig. 8, Q1 is the lowest part circular motion tangential direction of outboard runner 7, N curve is the actual motion track that block centrifugal body 10 runs to before protruding peak, Q2 is the tangential direction of protruding peak, G is the inertia motion direction of block centrifugal body, and W curve is actual outwards change rail running orbit.
The centrifugal body 10 of two bulks in Fig. 8 also can integrator structure, as the 10-a in Figure 10, and middle square hole or elongated hole and axis movable contact, or do not contact.
The difference of the centrifugal body 10 of bulk in weight shape centrifugal body A16 and the Figure 10 in Figure 11 is the spaces taken full advantage of in box body, increases area and the quality of centrifugal-block, and damping action increases.Now the assembling mode of weight shape centrifugal body A16 and driving-disc C23 is: the shape of driving-disc C is made into plate shaped (not shown in FIG.) by channel steel shape, fix two drive pins 4 above, one of them centrifugal body elongated hole 17 assembles with drive pin 4 activity of driving-disc C23, another centrifugal body elongated hole 17 assembles with axis 2 activity, and two weight shape centrifugal body A16 are positioned at middle shaft part and divide overlapped movable contact.
Also can by two weight shapes centrifugal body A16 integrator structure, as the 11-a in Figure 11.
Embodiment 4: inner side slideway, centrifugal body mutually pull and become rail mode
As Figure 12,13 and Figure 14 shown in, driving-disc D24 only has two U-shaped openings 14, crosses at most because limited space cannot assemble more than 4 centrifugal bodies, i.e. enable assembling, and the quality of centrifugal body also can too gently, and damping reduces on the contrary.
Damping unit only has inner side slideway 6, the protruding number of inner side slideway 6 is odd number, and be uniformly distributed, any all equal with the spacing of two intersection points of inner side slideway 6 by the diameter line of axis, weight shape centrifugal body B21 and two general pin 20 is fixedly assembled together, the spacing of two general pins 20 makes its surface that can be assemblied in inner side slideway 6 also can rotate about it, namely the spacing of two general pins 20 be more than or equal to inner side slideway 6 minimum outer through value and a protruding maximum height value sum, the external part of two general pins 20 and U-shaped opening 14 activity of driving-disc D24 are assembled, the other end and inner side slideway 6 movable contact, and run along inner side slideway 6, when the centrifugal body B21 of driving-disc D24 promotion weight shape rotates, the projection that one end of the centrifugal body B21 of weight shape and A end run into inner side slideway 6 outwards can become rail and be subject to the inhibition of slideway, now the other end of the centrifugal body B21 of the weight shape on opposite and B end are in protruding peak, its inertia motion direction is tangential direction, for the bosom making it revert to inner side slideway 6, inwardly must become rail, this centripetal force needed for motion and pulling force are held by A and are born, the change rail resistance of A end is twice so can increase.Then, B end runs into projection and outwards becomes rail, then pulls A end inwardly to become rail, goes round and begins again, constantly circulates.Because of A end and B hold between active force pulling force each other all the time, so pull bar 19 can become one structure with two centrifugal bodies, the elongated hole in the middle of it and axis is movable assembles.Certain pull bar 19 and two centrifugal bodies also can movable assembles, be complex structure some.In actual manufacture process, should take into full account the factor of mismachining tolerance and fit-up gap, the minimum spacing between two general pins 20 should be able to ensure weight shape centrifugal body B21 normal rotation, and excesssive gap can make damping action reduce.
Embodiment 5: outboard runner has knuckle mode
In Figure 15, outboard runner is provided with the projection of triangle or trapezoidal fin 15, and because there being knuckle, the impulsive force being subject to centrifugal body is relatively large, requires higher to material.
In above-mentioned all embodiments, the essence of damping action is exactly that centrifugal body in rotating does linear reciprocating motion and needs power consumption.Citing: weight or personal fall's speed 1 meter per second, the rotating speed of rope winding mechanism or cable drum is 5 revolutions per seconds, speed increasing mechanism gearratio is 1:5, then driving-disc rotating speed is 25 revolutions per seconds, the protruding number becoming rail slideway selects 5, centrifugal body often rotates one week linear reciprocating motion 5 times, then centrifugal body reciprocating frequency is 125 times/second.Centrifugal body is heavier, move back and forth required power consumption larger, but now the quality of centrifugal body has not been the quality concept in original meaning, but has been in the centrifugal force in High Rotation Speed situation, be far longer than quality own.Reciprocating amplitude is larger, consumes energy larger, and reciprocating amplitude depends on protruding height, but can only choose protruding height within the specific limits by the restriction of overall dimension.When rotating speed is lower, damping action is very little, so the start-up course of damping unit can not difficulty.
In addition, when only having outboard runner 7, if add spring between every two centrifugal bodies, the two ends of spring contact with centrifugal body respectively, and produce dirt thrust to centrifugal body to contrary both direction, in this scheme, the effect of spring does not come into force simultaneously.When the protruding quantity of outboard runner 7 is odd number, outboard runner always cancels each other to the component of the normal pressure of two centrifugal bodies (only refer to spring thrust produce the normal pressure part of dirt) perpendicular to radius 18, the event resolves of spring.When the protruding quantity of outboard runner 7 is even number, two symmetrical centrifugal bodies always drive towards projection simultaneously or leave projection, and the slideway producing dirt when driving towards projection due to spring thrust also can be cancelled out each other to the booster action of centrifugal body to the damping action of centrifugal body and slideway when leaving projection.If centrifugal body is not symmetrical, the component of two N-Side surfs to the normal pressure (only referring to the normal pressure part that spring thrust produces) of centrifugal body of each projection also can be offset.When spring thrust is very large, centrifugal body or whole descending lifeline difficulty in starting can be caused.Especially, when each centrifugal body all assembles a spring, one end of spring contacts with centrifugal body, the other end and axis or its peripheral mechanism contacts, the slideway resistance that the thrust of spring causes and slideway boosting power still can be cancelled out each other, also can cause descending lifeline difficulty in starting simultaneously, even can not fall when weight is comparatively light or body weight is less.
In various embodiments, the protruding number of slideway is more, and damping action is stronger, but protruding number too much (such as more than 10), and the centrifugal body overall dimension of inevitable requirement diminishes, quality reduces, and centrifugal force or required centripetal force all can reduce, and damping is not good.Also to considering detailed description of the invention simultaneously, only having as selected the protruding number during slideway of inner side just few than protruding number when only having outboard runner.
Obviously, above-described embodiment is only a citing, and is not the restriction to embodiments of the present invention.All genus technique scheme the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (5)
1. a two-way change rail descending lifeline damping unit, comprise box body, axis, driving-disc, centrifugal body, push rod, pull bar, inject the change rail slideway of lubricating oil, wherein, driving-disc and axis are fixed and are assembled and can rotate in box body, the gear of axis and cable drum or rope winding mechanism or its speed increasing mechanism assembles and rotates thereupon, become rail slideway and be fixed on tray interior, becoming rail slideway is a circumferential channel, comprise inner side slideway, outboard runner, or only comprise slideway or outboard runner inside one of them, centrifugal body distributes in a circumferential direction symmetrically and evenly, and assemble with driving-disc movable contact or activity, driving-disc promotes centrifugal body and runs in change rail slideway when rotating, it is characterized in that: whole damping unit at least comprises an inner side slideway or outboard runner, described inner side slideway, the surface of outboard runner is provided with equally distributed projection, these two slideways are all in wavy or sigmoid curve or be provided with the peripheral curved of fin knuckle, when the linear passage of the rounded closed wave adopting above-mentioned two slideways to surround, this channel cross-section is rectangle, centrifugal body runs between two slideways, and with two ramp surface movable contacts, the actual motion track of the centrifugal body weight heart is also rounded closed wave or sigmoid curve, namely any one centrifugal body inwardly comprises in the S shape motion process doing one-period circulation, become rail outside twice, when only adopting an inner side slideway or outboard runner, the protruding number of slideway is odd number, directly contact between every two symmetrical centrifugal bodies or become one structure or contacted by push rod or connected by pull bar, centrifugal body runs along ramp surface, namely projection on each centrifugal body contact slideway becomes rail to a direction, promote simultaneously or pull another symmetrical with it centrifugal body to become rail to another direction, and running orbit still rounded closed wave or sigmoid curve.
2. one according to claim 1 two-way change rail descending lifeline damping unit, it is characterized in that: arrange more than 2 groups in whole damping unit simultaneously and the change rail slideway of concentric time, corresponding centrifugal body is more than 2 groups, often group change rail slideway comprises inner side slideway and outboard runner, driving-disc and change rail slideway movable contact, and forming the side becoming rail passage, driving-disc is provided with drive pin, to reach respectively in slideway and to promote centrifugal running body.
3. one according to claim 1 two-way change rail descending lifeline damping unit, it is characterized in that: whole damping unit only arranges an outboard runner, the protruding number of outboard runner is odd number, and be uniformly distributed, centrifugal body runs along outboard runner surface, every two inboard direct movable contacts in end of symmetrical centrifugal body or become one structure, or by a push rod movable contact, the total length of after assembling two centrifugal bodies is less than or equal to the difference of outboard runner maximum inner diameter value and a protruding maximum height value, any all equal with the spacing of two intersection points of slideway by the diameter line of axis, another the centrifugal body synchronously promoting opposite when the projection of outboard runner makes one of them centrifugal body become rail to the inside becomes rail laterally, and two centrifugal bodies alternately do same motion, the elongated hole of the two centrifugal body middle parts that push rod or one-tenth are integrated and axis activity are assembled.
4. one according to claim 1 two-way change rail descending lifeline damping unit, it is characterized in that: an inner side slideway is only set in whole damping unit, the protruding number of inner side slideway is odd number, and be uniformly distributed, centrifugal body runs along inner side ramp surface, connected by a pull bar between every two symmetrical centrifugal bodies simultaneously, namely the two ends of pull bar are assembled with two centrifugal bodies respectively, the spacing of two centrifugal bodies after connection remains unchanged, and be more than or equal to inner side slideway minimum outer diameter value and a protruding maximum height value sum, any all equal with the spacing of two intersection points of slideway by the diameter line of axis, another centrifugal body is synchronously pulled to become rail to the inside when the projection of inner side slideway makes one of them centrifugal body become rail laterally, and two centrifugal bodies alternately do same motion, or two symmetrical centrifugal bodies are made of one structure, the elongated hole of position, intermediate portion and axis activity are assembled.
5. the one two-way change rail descending lifeline damping unit according to claim 1,2,3 or 4, is characterized in that: centrifugal body is several spheroids or cylinder or slide block, and motion mode is for rolling or sliding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505232.8A CN103550872B (en) | 2013-10-18 | 2013-10-18 | A kind of two-way change rail descending lifeline damping unit |
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| CN105597238B (en) * | 2014-11-06 | 2018-08-10 | 李国栋 | Push rod damp slow falling device |
| CN105749436A (en) * | 2016-03-22 | 2016-07-13 | 广东交通职业技术学院 | Slow descent method for high-altitude escape and high-altitude escape device |
| CN114100014B (en) * | 2021-12-07 | 2023-03-10 | 北华大学 | Four-jaw centrifugal body rolling impact type descent control device damping device |
| CN114100013B (en) * | 2021-12-07 | 2023-03-21 | 北华大学 | Friction and impact type descent control device damping device |
| CN115531765B (en) * | 2021-12-21 | 2023-06-16 | 北华大学 | Steel ball collision type descent control device damping device |
| CN116764128A (en) * | 2021-12-21 | 2023-09-19 | 北华大学 | Damping device of comb tooth pushing steel ball type descent control device |
| CN114470542B (en) * | 2022-03-09 | 2024-09-03 | 赵二辉 | Novel centrifugal escapement type speed stabilizing mechanism |
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| CN101125235A (en) * | 2007-09-21 | 2008-02-20 | 沈阳工业大学 | Free-fall slowly lowering mechanism |
| CN202682587U (en) * | 2012-07-17 | 2013-01-23 | 张德芳 | Hydraulic damping type descending rescue device |
| CN102949786A (en) * | 2012-10-25 | 2013-03-06 | 北京中安科创科技发展有限公司 | Recyclable hydraulic damping descent control device with stall protection |
| CN203469252U (en) * | 2013-10-18 | 2014-03-12 | 吕雪寒 | Damping device of bi-directional orbital transfer type descent control device |
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| DD152476A1 (en) * | 1980-08-18 | 1981-12-02 | Siegfried Schmidt | DAEMPFUNGSSEIL |
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|---|---|---|---|---|
| CN101125235A (en) * | 2007-09-21 | 2008-02-20 | 沈阳工业大学 | Free-fall slowly lowering mechanism |
| CN202682587U (en) * | 2012-07-17 | 2013-01-23 | 张德芳 | Hydraulic damping type descending rescue device |
| CN102949786A (en) * | 2012-10-25 | 2013-03-06 | 北京中安科创科技发展有限公司 | Recyclable hydraulic damping descent control device with stall protection |
| CN203469252U (en) * | 2013-10-18 | 2014-03-12 | 吕雪寒 | Damping device of bi-directional orbital transfer type descent control device |
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