CN204025489U - For rotatablely moving of input being produced to the rotary damping device of damping function - Google Patents
For rotatablely moving of input being produced to the rotary damping device of damping function Download PDFInfo
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- CN204025489U CN204025489U CN201420369594.9U CN201420369594U CN204025489U CN 204025489 U CN204025489 U CN 204025489U CN 201420369594 U CN201420369594 U CN 201420369594U CN 204025489 U CN204025489 U CN 204025489U
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- cover body
- outer cover
- jack shaft
- input
- deceleration
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Abstract
The utility model discloses and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, described rotary damping device comprises: an outer cover body, has a columniform interior annular wall; One jack shaft, coaxial with the inner friction surface of described outer cover body, and be rotatably supported in described outer cover body, described jack shaft has an input end that rotatablely moves rotatablely moving for receiving described input; Deceleration component, is mounted to radially motion and coexists in described outer cover body and rotate with described jack shaft one with respect to described jack shaft, and described deceleration component has the relative also outer friction surface of friction slip thereon of inner friction surface with described outer cover body.The utility model has been avoided using damping liquid and the hydraulic seal problem that produces, has eliminated and has revealed because of liquid the failure of apparatus causing, and has avoided other a kind of use radial spring biased member to produce the easy fatigue failure of frictionally acting device spring.
Description
Technical field
The utility model relates to conduit wiring coiler restoring device technical field, particularly a kind of for rotatablely moving of input being produced to the rotary damping device of damping function.
Background technique
Existing rotary damping device is a kind of is that the damping function that the damping liquid by hydraulic system produces realizes, another kind produces friction generation damping function by centrifugal action and realizes, the slow restoring device of existing pipeline auto reeling device is used the fluid that in use exists of hydraulic system easily to leak, working life is short, assembles loaded down with trivial details deficiency; The slow restoring device of existing use centrifugal action in use exists pulls out while reaching certain value with retraction speed when pipeline, all can produce drag effect pulling out with the both direction that bounces back, while causing pipeline to pull out, and resistance increment, the deficiency that impact is used.
One Chinese utility model patent (the publication number: disclosed a kind of rotary damping device CN2814004Y) of authorizing in 2006, comprising a Fluid Circulation damping mechanism, in Gai mechanism, there are three to be installed on frame with the essentially identical piston cylinder on three sides of through hole.Each piston cylinder is formed with a piston cavity of aliging with cam portion and through hole, and each piston cavity has a closed end and an opening end.One end away from cam portion of each plunger is inserted this piston cavity and is contained in slidably in this piston cavity by the opening end of a corresponding piston cavity.On each plunger, at the place, one end away from cam portion, be formed with annular groove, for seal ring is installed, to fit tightly with the inwall formation of piston cavity.Three piston cavity have the boss with connecting port at their closed end place, and a fluid connecting passage is connected in these connecting ports, thereby make to form fluid between these piston cavity, are communicated with.Like this, one end that seal ring is housed of each plunger has formed a substantially airtight fluid chamber together with each piston cavity, and the inside is full of the fluid such as hydraulic oil, between Zhe Sange fluid chamber, by fluid connecting passage, communicates with each other.The cross section of connecting port is less than the cross section of piston cavity.
What adopt due to the rotary damping device of above-mentioned model utility is hydraulic principle, and therefore, the rotary damping device of said structure has the advantages such as damping function power is stable, operational reliability is high, long service life.But the hydraulic system while, an inevitable problem was, exists fluid and easily leak in use, and working life is short, assembles loaded down with trivial details deficiency.
Model utility content
The utility model easily leaks for a kind of fluid that in use exists of the slow restoring device of existing pipeline auto reeling device, and working life is short, assembles loaded down with trivial details deficiency, and the another kind of deficiency of drag effect that also can produce when pipeline is pulled out.
The utility model utilizes centrifugal action and rubbing action to implement the damping to rotatablely moving, a kind of unidirectional damping that can produce moving direction particularly, thereby the hydraulic seal problem of having avoided using damping liquid and having produced, eliminated the failure of apparatus causing because of liquid leakage, avoided other a kind of use radial spring biased member to produce the easy fatigue failure of frictionally acting device spring, and when speed reaches certain value, at pipe pull-out direction, also the deficiency of damping function can be produced, the working life of product can be effectively extended.The utility model is particularly suitable as for collecting the tube rolling device of flexible pipe or for collecting the rotary damping device on the winder of cable.
In order to realize above-mentioned model utility object, the utility model has disclosed and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, described rotary damping device comprises:
One outer cover body, has a columniform interior annular wall;
One jack shaft, coaxial with the inner friction surface of described outer cover body, and be rotatably supported in described outer cover body, described jack shaft has an input end that rotatablely moves rotatablely moving for receiving described input;
Deceleration component, is mounted to radially motion and coexists in described outer cover body and rotate with described jack shaft one with respect to described jack shaft, and described deceleration component has the relative also outer friction surface of friction slip thereon of inner friction surface with described outer cover body.
Reasonable, the utility model has disclosed and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, described deceleration component further comprises:
Four deceleration pieces, around described central shaft, be arranged symmetrically with, described each deceleration piece comprises guiding a bearing pin and the annular lug that be connected parallel with described jack shaft, and it is relative with the described inner friction surface of described outer cover body that described annular lug has described outer friction surface.
Reasonable, the utility model has disclosed and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that,
When described deceleration piece and described outer cover body rotating in same direction, and described deceleration piece speed is during higher than described outer cover body, described deceleration piece is under the effect of centrifugal force, around described medium axle diameter, to inside motion, make outer friction surface friction slip on the described inner friction surface of described outer cover body of described deceleration piece not produce damping function;
When described deceleration piece and described outer cover body rotate backward, described deceleration piece is around described jack shaft radially outward motion under the effect of gravity and centrifugal force, and the described inner friction surface friction of the outer friction surface of described deceleration piece and described outer cover body produces damping function.
Reasonable, the utility model has disclosed and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, described device further comprises:
At least one fixed plate, is coaxially arranged on described jack shaft upper and lower, and described fixed plate comprises several spacing salient points and deceleration piece positioning hole, and the guiding bearing pin of described deceleration piece is pivotally secured in the described deceleration piece positioning hole of described fixed plate; Described spacing salient point carries out spacing to the rotation of the piece that slows down described in each.
Reasonable, the utility model has disclosed and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that,
Described outer cover body comprises a bottom and an opening end, described jack shaft rotatably support in being respectively formed at the axis hole of described bottom, and described jack shaft described in rotatablely move input end by the described outer cover body of stretching out of described axis hole.
Reasonable, the utility model has disclosed and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that,
Described device further comprises:
One cover plate, is arranged on the opening end of described outer cover body, and described cover plate center is formed with the axis hole that the input end that rotatablely moves for jack shaft described in rotatably support and described in making stretches out described outer cover body.
Reasonable, the utility model has disclosed and a kind ofly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, the top of described jack shaft is provided with the cylinder boss matching with described cover plate upper shaft hole.
Said structure a kind of for rotatablely moving of input being produced to the rotary damping device of damping function, provide a kind of and can reach more effectively, more reliably slow Involution, and at pipeline, pull out Shi Buhui and produce damping function, longer service life, slow restoring device easier for installation.
Accompanying drawing explanation
Below, with reference to accompanying drawing, for those skilled in the art, to detailed description of the present utility model, above and other object of the present utility model, feature and advantage will be apparent.
Fig. 1 is that rotary damping device of the present utility model is assembled in the combination schematic diagram on reel;
Fig. 2 is the explosive view of rotary damping device of the present utility model;
Fig. 3 is the sectional view of Fig. 2 housing body 1 and the combination schematic diagram of jack shaft 2;
Fig. 4 is the structural representation of fixed plate 41,42 in the utility model;
Fig. 5 is the structural representation of piece 3 of slowing down in the utility model;
Fig. 6 has provided the schematic diagram of piece 3 when rotating counterclockwise that slow down in rotary damping device of the present utility model;
Fig. 7 has provided the schematic diagram of piece 3 when clockwise rotating that slow down in rotary damping device of the present utility model;
Fig. 8 has illustrated Fig. 6, the stressed schematic diagram of deceleration piece 3 under two kinds of motions in 7.
Reference character
1--outer cover body
2--jack shaft
3--deceleration piece
41,42--fixed plate
5--cover plate
6--jack shaft bottom
The axis hole of 7--outer cover body
8--annular lug
The interior annular wall of 9--outer cover body
10--cover plate upper shaft hole
11--cylinder boss
The 12--bearing pin that leads
13--deceleration piece positioning hole
14--small gear
15--gearwheel
The spacing salient point of 16--
17--reel
171--standing part
The axis of 18--jack shaft
The 19--input end that rotatablely moves
Frictional force that F1--is counterclockwise
F2--centrifugal force
The clockwise frictional force of F3--
N--pressure
L1, the L2--arm of force
Embodiment
Referring to Fig. 1, be depicted as rotary damping device of the present utility model and be assembled in the combination schematic diagram on reel.
Refer to Fig. 2, be depicted as related domain one preferred embodiment for rotatablely moving of input being produced to the decomposing schematic representation of the rotary damping device of damping function.
Should comprise outer cover body 1, cover plate 5, jack shaft 2 for rotatablely moving of input being produced to the rotary damping device of damping function, minute be located at the upper and lower fixed plate of jack shaft 2 41 and 42, be evenly distributed in the deceleration piece 3 of four of 2 times end peripheries of jack shaft, further detailed structure is as follows.
Outer cover body 1 is roughly cylindrical, and it has bottom and opening end, and the center of bottom is formed with the axis hole 7 for rotatably support jack shaft 2 one end.Outer cover body 1 has columniform interior annular wall 9, and it has predetermined roughness (can come as required to select), for the outer peripheral surface 8 with deceleration piece 3 (also having certain roughness) phase frictional fit.
Cover plate 5 is fixed on the open end of outer cover body 1 and seals this opening end, and the center of cover plate 5 is formed with the axis hole 10 for rotatably support jack shaft 2 the other ends.Like this, jack shaft 2 just rotatably support in the shell being formed by outer cover body 1 and cover plate 5, the center line of jack shaft 2 is overlapped with the center line of outer cover body 1.
Fig. 3 has further provided the detailed structure of outer cover body 1 and jack shaft 2.
The clear interior annular wall 9 of outer cover body 1 and the axis hole 7 of bottom centre illustrated from figure.The axis 18 of jack shaft 2 and the shaft axis of outer cover body 1 overlap, and the top of jack shaft 2 is provided with the cylinder boss 11 matching with axis hole 10 on cover plate 5, jack shaft 2 bottoms 6 with match with bottom axis hole 7.
Fig. 4 provided jack shaft 2 up and down each arrange one on fixed plate 41, lower fixed plate 42, on the fixed plate 41,42 of each ring, be provided with equally distributed some deceleration piece positioning holes 13 and spacing salient point 16; The axis of deceleration piece positioning hole 13 is parallel with the axis of jack shaft 2, and the effect of deceleration piece positioning hole 13 is to carry out spacing to the activity of deceleration piece 3; The effect of spacing salient point 16 is stop the inside activity of each deceleration piece 3 and carry out spacing.Upper fixed plate 41 is arranged between cover plate 5 and central shaft 2, and lower fixed plate 42 is arranged between central shaft 2 and axis hole 7.
Fig. 5 has further illustrated the structure of deceleration piece 3.
Deceleration piece 3 comprises in the deceleration positioning hole 13 that is articulated in fixed plate 41,42, the guiding bearing pin 12 and the annular lug 8 being connected that are parallel to jack shaft 2 axis 18, the outer peripheral surface of annular lug 8 has certain roughness, the match interior annular wall 9 of the outer cover body 1 with certain roughness, the outer peripheral surface of annular lug 8 is coaxial with interior annular wall 9.
It should be noted that, deceleration piece 3 has 1 or a plurality of at least, deceleration piece 3 is pivotable to be fixed in the deceleration piece positioning hole 13 of fixed plate 4, like this, deceleration piece 3 can be along with jack shaft 2 be together in the interior rotation of outer cover body 1, but due to the unique texture of deceleration piece 3 employing deceleration piece positioning holes 13 and spacing salient point 16, the motion of deceleration piece 3 is subject to the certain limitation of spacing salient point 16.
During installation, by above-mentioned pipeline auto reeling device rotary damping device according to the signal of Fig. 2, fixed plate 42, four deceleration pieces 3, jack shaft 2, fixed plate 41 and cover plates 5 are packed in outer cover body 1 successively, then small gear 14 is fixed on the top cover plate 5 of jack shaft 2, and a reel 17 in gearwheel 15 and an auto reeling device (not shown go out) is fixedly connected on the standing part 171 of this auto reeling device coaxially, meanwhile, the ready rotary damping device of above-mentioned installation is also fixedly connected with above-mentioned reel.By the engagement of small gear 14 and gearwheel 15, can realize gearwheel 15 and be fixedly connected on coaxially on the fixed component in pipeline auto reeling device with reel 17.
The axis 18 of the small gear 14 of rotary damping device of the present utility model parallel with the axis of gearwheel 15 (being disalignment), and rotary damping device passes through reduction gearing mechanism, here be small gear 14 and the gearwheel 15 of a pair of that be engaged with each other, different radii, engage and carry-over moment with reel 17.
Here " gearing down " refers to that the rotating speed transmitting reduces when for example, transmitting rotation from parts (rotary damping device) to another parts (reel), that is to say that transmitted moment increases.The radius of the small gear 14 of rotary damping device is less than the radius of gearwheel 15.
When pulling out flexible pipe or cable, reel 17 on pipeline auto reeling device is along rotating around the direction rotation direction to identical with wind spring, now, small gear 14 is equivalent to planetary pinion axis revolution around gearwheel 15 along with the rotation of reel 17, simultaneously, small gear 14 is again around himself axis rotation, when pulling out flexible pipe or cable, reeling pipe wheel 17 turns clockwise, drive small gear 14 to turn clockwise around gearwheel 15, small gear 14 drives jack shaft 2 to turn clockwise, now, deceleration piece 3 is under the effect of gravity and centrifugal force, inwardly motion, contact with the spacing salient point 16 on fixed plate 4, therefore, deceleration piece 3 does not contact with the standing part 171 of reel 17, small gear 14 is around its axis idle running, rotary damping device is inoperative.
When reel 17 turns round under the effect of the turning power of wind spring, small gear 14 is equivalent to planetary pinion axis revolution around gearwheel 15 along with the rotation of reel 17, simultaneously, small gear 14 is again around himself axis rotation, when reaching certain velocity amplitude, centrifugal force is greater than the gravity of deceleration piece 3, the outer peripheral surface of deceleration piece 3 contacts with the interior annular wall 9 of the outer cover body 1 of reel 17, produce surface friction drag, thereby the movement velocity of jack shaft 2 is slowed down, and jack shaft 2 is fixedly connected with small gear 14, small gear 14 and gearwheel 15 are intermeshing, so just the movement velocity of reel 17 is slowed down, reach the object of slow retraction.
Fig. 6 has provided the schematic diagram of piece 3 when rotating counterclockwise that slow down in rotary damping device of the present utility model;
Fig. 7 has provided the schematic diagram of piece 3 when clockwise rotating that slow down in rotary damping device of the present utility model;
Fig. 8 has illustrated Fig. 6, the stressed schematic diagram of deceleration piece 3 under 7 two kinds of motions.
In conjunction with above-mentioned three schematic diagram, rotation and loading process are described as follows:
Refer to Fig. 6, when small gear 14 is rotated counterclockwise, drives jack shaft 2, and drive fixed plates 41,42 to rotate by jack shaft 2, be also together rotated counterclockwise with four deceleration pieces 3 of deceleration piece positioning hole 13 pivot joints of fixed plate 41,42.Shown in Fig. 8, under the effect of centrifugal force F2, the outer peripheral surface of annular lug 8 is rotated counterclockwise around the axis of guiding bearing pin 12, the interior annular wall 9 of laminating outer cover body 1 also produces pressure N, in the process that the outer peripheral surface of annular lug 8 moves counterclockwise at the interior annular wall 9 with respect to outer cover body 1, the outer peripheral surface of 9 pairs of annular lugs 8 of interior annular wall of outer cover body 1 produces clockwise frictional force F3.
As seen from Figure 8, frictional force F3 is consistent with respect to the moment direction of axis and the moment direction of centrifugal force F2 of guiding bearing pin 12 clockwise, it is all clockwise direction, so the outer peripheral surface that clockwise moment of frictional force F3 can further increase annular lug 8 fits in the pressure on the interior annular wall 9 of outer cover body 1, from and further make clockwise frictional force F3 increase.
When reaching balance, moment meets following formula:
F2×L1+F3×L2＝N×L1 (1)
According to frictional force definition F3=μ * N, the frictional force F3 in the time of can obtaining being rotated counterclockwise is again:
F3＝F2×L1/(L1/μ－L2) (2)
On the contrary, as shown in Figure 7, when small gear 14 turns clockwise, under the effect of centrifugal force F2, the outer peripheral surface of annular lug 8 is rotated counterclockwise and the interior annular wall 9 of the outer cover body 1 of fitting produce inside pressure N around the axis of guiding bearing pin 12, in the process that the outer peripheral surface of annular lug 8 moves clockwise at the interior annular wall 9 with respect to outer cover body 1, the outer peripheral surface of 9 pairs of annular lugs 8 of interior annular wall of outer cover body 1 produces anticlockwise frictional force F1.
As seen from Figure 8, centrifugal force F2 is clockwise with respect to the moment direction of the axis of guiding bearing pin 12, and the moment direction of frictional force F1 is that both moments can be cancelled out each other on the contrary counterclockwise.
When reaching balance, moment meets following formula:
F2×L1－F1×L2＝N×L1 (3)
According to frictional force definition F1=μ * N, the frictional force F1 in the time of can obtaining turning clockwise is again:
F1＝F2×L1/(L1/μ+L2) (4)
According to above-mentioned derivation, can draw: the frictional force F3 while being rotated counterclockwise must be greater than the frictional force F1 while turning clockwise, so can produce the effect of slow retraction.
Comprehensive said process, when described deceleration piece 3 and outer cover body 1 rotating in same direction, and when deceleration piece 3 speed are during higher than outer cover body 1, deceleration piece 3 is under the effect of centrifugal force, around the radially inwardly motion of jack shaft 2, the outer friction surface of the piece 3 that makes to slow down friction slip and do not produce damping function on the inner friction surface of outer cover body 1.
And rotate backward when deceleration piece 3 and outer cover body 1, deceleration piece 3 under the effect of gravity and centrifugal force around jack shaft 2 radially outwards motions, the inner friction surface of the outer friction surface of deceleration piece 3 and outer cover body 1 friction generation damping function.
Rotary damping device of the present utility model utilizes centrifugal action and rubbing action to implement the damping to rotatablely moving just, a kind of unidirectional damping that can produce moving direction particularly, thereby the hydraulic seal problem of having avoided using damping liquid and having produced, eliminated the failure of apparatus causing because of liquid leakage, avoided other a kind of use radial spring biased member to produce the easy fatigue failure of frictionally acting device spring, and when speed reaches certain value, at pipe pull-out direction, also can produce the deficiency of damping function, can effectively extend the working life of product.The utility model is particularly suitable as for collecting the tube rolling device of flexible pipe or for collecting the rotary damping device on the winder of cable.
All embodiments are only for illustration of the utility model above, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from spirit and scope of the present utility model, therefore can also make various conversion or variation, all technological schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (7)
1. for rotatablely moving of input being produced to a rotary damping device for damping function, it is characterized in that, described rotary damping device comprises:
One outer cover body, has a columniform interior annular wall;
One jack shaft, coaxial with the inner friction surface of described outer cover body, and be rotatably supported in described outer cover body, described jack shaft has an input end that rotatablely moves rotatablely moving for receiving described input;
Deceleration component, is mounted to radially motion and coexists in described outer cover body and rotate with described jack shaft one with respect to described jack shaft, and described deceleration component has the relative also outer friction surface of friction slip thereon of inner friction surface with described outer cover body.
2. according to claim 1ly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, described deceleration component further comprises:
Four deceleration pieces, around described jack shaft, be arranged symmetrically with, described each deceleration piece comprises guiding a bearing pin and the annular lug that be connected parallel with described jack shaft, and it is relative with the described inner friction surface of described outer cover body that described annular lug has described outer friction surface.
3. according to claim 2ly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that,
When described deceleration piece and described outer cover body rotating in same direction, and described deceleration piece speed is during higher than described outer cover body, described deceleration piece is under the effect of centrifugal force, around described jack shaft radially outward motion, make outer friction surface friction slip on the described inner friction surface of described outer cover body of described deceleration piece not produce damping function;
When described deceleration piece and described outer cover body rotate backward, described deceleration piece is around described jack shaft radially outward motion under the effect of gravity and centrifugal force, and the described inner friction surface friction of the outer friction surface of described deceleration piece and described outer cover body produces damping function.
4. according to claim 3ly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, described device further comprises:
At least one fixed plate, is coaxially arranged on described jack shaft upper and lower, and described fixed plate comprises several spacing salient points and deceleration piece positioning hole, and the guiding bearing pin of described deceleration piece is pivotally secured in the described deceleration piece positioning hole of described fixed plate; Described spacing salient point carries out spacing to the rotation of the piece that slows down described in each.
5. according to claim 4ly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that,
Described outer cover body comprises a bottom and an opening end, described jack shaft rotatably support in being respectively formed at the axis hole of described bottom, and described jack shaft described in rotatablely move input end by the described outer cover body of stretching out of described axis hole.
6. according to claim 5ly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that, described device further comprises:
One cover plate, is arranged on the opening end of described outer cover body, and described cover plate center is formed with the axis hole that the input end that rotatablely moves for jack shaft described in rotatably support and described in making stretches out described outer cover body.
7. according to claim 6ly for rotatablely moving of input being produced to the rotary damping device of damping function, it is characterized in that,
The top of described jack shaft is provided with the cylinder boss matching with described cover plate upper shaft hole.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369594.9U CN204025489U (en) | 2014-07-04 | 2014-07-04 | For rotatablely moving of input being produced to the rotary damping device of damping function |
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| CN201420369594.9U CN204025489U (en) | 2014-07-04 | 2014-07-04 | For rotatablely moving of input being produced to the rotary damping device of damping function |
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| CN204025489U true CN204025489U (en) | 2014-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317903A (en) * | 2014-07-04 | 2016-02-10 | 卢仁鹏 | Rotary damping device for damping input rotational motion |
-
2014
- 2014-07-04 CN CN201420369594.9U patent/CN204025489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317903A (en) * | 2014-07-04 | 2016-02-10 | 卢仁鹏 | Rotary damping device for damping input rotational motion |
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Effective date of registration: 20170223 Address after: Shizhu town Yongkang city Zhejiang province Zhaishi pool 321300 Jin Village Patentee after: Zhejiang Zhongyou Industry & Trade Co., Ltd. Address before: 321300 Zhejiang city of Jinhua province Yongkang xialixi 100 Fulin Road Industrial Park, No. 7 Patentee before: Lu Renpeng |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20170704 |