CN103343797B - A kind of damping unit - Google Patents
A kind of damping unit Download PDFInfo
- Publication number
- CN103343797B CN103343797B CN201310245060.5A CN201310245060A CN103343797B CN 103343797 B CN103343797 B CN 103343797B CN 201310245060 A CN201310245060 A CN 201310245060A CN 103343797 B CN103343797 B CN 103343797B
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- Prior art keywords
- cylinder body
- piston
- present
- piston rod
- column
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- 238000013016 damping Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000003467 diminishing effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
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- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of damping unit, comprise cylinder body (4), sealing device (3) and back-moving spring (8), in cylinder body (4), be filled with resisting medium (5), its improved main points are: the piston (7) that is provided with an annular at cylinder body (4), this piston (7) is provided with piston rod (2), described piston rod (2) from and only pass from one end of cylinder body (4), cylinder body (4) Nei center is axially arranged with the column (6) of a reducing, and the minimum place of diameter of this column (6) is less than the interior diameter of a circle of piston (7). Compared with prior art, it is limited that the present invention can be applicable to application space, particularly can be applied to the situation of the stroke directions limited location of damped object.
Description
Technical field
The present invention relates to a kind of damping unit.
Background technology
Current damping unit, the resistance producing is generally balanced, but needed be under many circumstances not balanced resistance, but need to provide the resistance of variation,
Chinese patent CN200420073009.7 discloses a kind of change clearance-type viscous damper, it comprises cylinder body, piston, piston rod, resisting medium and sealing device, described in it, inboard wall of cylinder block adopts and becomes cylinder diameter curved design, and the longitudinal section of the inwall of described cylinder body is about the symmetrical paraboloid of revolution or the taper seat in cylinder body middle part; The vertical face of piston is about the symmetrical paraboloid of revolution or the taper seat in piston middle part; Described cylinder diameter middle part is maximum, reduces gradually near inner end diameter; Piston is also middle part diameter maximum, reduces gradually near pistons end diameter. The consistent piston of viscous damper and the cylinder body of making of curvature of longitudinal diameter of cylinder diameter and piston keeps uniform gap width.
This damping unit must be passed cylinder body two ends and realized by piston rod the restriction of movement locus, in the situation of enriching for application space, generally do not have problems, but when being applied to the lower time of situation that application space as this in automobile shock-avoiding is comparatively narrow, piston rod can not be suitable for through cylinder body two ends, and can not be suitable for or settle equally the position of piston rod operation for the relatively little situation of some spaces.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of damping unit, and it is limited that this damping unit can be applicable to application space, particularly can be applied to the situation of the stroke directions limited location of damped object.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: comprise cylinder body (4), sealing device (3) and back-moving spring (8), in cylinder body (4), be filled with resisting medium (5), its improved main points are: the piston (7) that is provided with an annular at cylinder body (4), this piston (7) is provided with piston rod (2), described piston rod (2) from and only pass from one end of cylinder body (4), cylinder body (4) Nei center is axially arranged with the column (6) of a reducing, and the minimum place of diameter of this column (6) is less than the interior diameter of a circle of piston (7).
Above-mentioned piston rod (2) can be the cylindrical body of a cylindricality, also can be two above rhabodoids.
The cross section of above-mentioned column (6) can be circle or polygon, as triangle, rectangle, five limits or hexagon, is preferably circle.
The reducing of above-mentioned column (6) can be the linear reducing of taper or platform shape, also can be the non-linear reducing of curved surface, described reducing can be unidirectional, change from small to big or from large to small, from large to small or also can be two-way or multidirectional, after changing from small to big, change from small to big again after from large to small again, or after changing from small to big again from large to small, then change from small to big, the edge in the vertical section of described column (6) is symmetrical waveform again.
Above-mentioned back-moving spring (8) can be arranged in cylinder body (4), also can be arranged on the outer piston rod (7) of cylinder body (4).
Compared with prior art, it is limited that the present invention can be applicable to application space, particularly can be applied to the situation of the stroke directions limited location of damped object.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the perspective view of the embodiment of the present invention 1.
Fig. 2 be Figure 1A-A section structural representation.
Fig. 3 is the perspective view of the embodiment of the present invention 2.
Fig. 4 be Fig. 3 B-B section structural representation.
Fig. 5 is the structural representation of the embodiment of the present invention 3.
Fig. 6 is the structural representation of the embodiment of the present invention 4.
Fig. 7 is the structural representation of the embodiment of the present invention 5.
Fig. 8 is the structural representation of the embodiment of the present invention 6.
Fig. 9 is the structural representation of the embodiment of the present invention 7.
Figure 10 is the structural representation of the embodiment of the present invention 8.
Figure 11 is the structural representation of the embodiment of the present invention 9.
Figure 12 is the structural representation of the embodiment of the present invention 10.
Figure 13 is the structural representation of the embodiment of the present invention 11.
Figure 14 is the structural representation of the embodiment of the present invention 12.
Figure 15 is the structural representation of the embodiment of the present invention 13.
Shown in figure: 1 is piston rod end plate, 2 is piston rod, and 3 is sealing device, and 4 is cylinder body, and 5 is resisting medium, and 6 is column, and 7 is piston, and 8 is back-moving spring.
Detailed description of the invention
Embodiment 1:With reference to Fig. 1～Fig. 2, for the structural representation of the embodiment of the present invention 1, the present embodiment comprises cylinder body (4), sealing device (3) and back-moving spring (8), cylinder body (4) is circular, in cylinder body (4), be filled with resisting medium (5), be provided with the piston (7) of an annular at cylinder body (4), this piston (7) is provided with piston rod (2), piston rod (2) is the cylindrical body of a cylindricality, described piston rod (2) from and the end that only passes piston rod (2) from one end of cylinder body (4) be provided with piston rod end plate 1, piston rod end plate 1 is provided with bleeder port, cylinder body (4) Nei center is axially arranged with a column (6) that is round table-like reducing, the minimum place of diameter of this column (6) is less than the interior diameter of a circle of piston (7), maximum is identical with the interior diameter of a circle of piston (7), back-moving spring (8) is arranged at the opposite side of cylinder body (4) inner piston rod (2).
Embodiment 2:With reference to Fig. 3～4, the structural representation of the embodiment of the present invention 2, compared with embodiment 1, the main distinction of the present embodiment is: described piston rod (2) is 4 rhabodoids.
Embodiment 3:With reference to Fig. 5, the structural representation of the embodiment of the present invention 3, compared with embodiment 2, the main distinction of the present embodiment is: the column (6) at described cylinder body (4) Nei center is the reducing that centre is little and increase gradually to two ends.
Embodiment 4:With reference to Fig. 6, the structural representation of the embodiment of the present invention 4, compared with embodiment 2, the main distinction of the present embodiment is: the centre of the column (6) at described cylinder body (4) Nei center be one section isometrical cylindrical, two ends are the reducing shape increasing gradually.
Embodiment 5:With reference to Fig. 7, the structural representation of the embodiment of the present invention 5, compared with embodiment 2, the main distinction of the present embodiment is: the centre of the column (6) at described cylinder body (4) Nei center be one section isometrical cylindrical, two ends are the reducing shape diminishing gradually.
Embodiment 6:With reference to Fig. 8, the structural representation of the embodiment of the present invention 6, compared with embodiment 2, the main distinction of the present embodiment is: described piston rod (2) is 2 rhabodoids.
Embodiment 7:With reference to Fig. 9, the structural representation of the embodiment of the present invention 7, compared with embodiment 2, the main distinction of the present embodiment is: described piston rod (2) is 3 rhabodoids.
Embodiment 8:With reference to Figure 10, the structural representation of the embodiment of the present invention 8, compared with embodiment 1, the main distinction of the present embodiment is: described back-moving spring (8) is arranged at outside cylinder body (4) and between piston rod end plate 1.
Embodiment 9:With reference to Figure 11, the structural representation of the embodiment of the present invention 9, compared with embodiment 2, the main distinction of the present embodiment is: described back-moving spring (8) is arranged on the outer piston rod (2) of cylinder body (4).
Embodiment 10:With reference to Figure 12, the structural representation of the embodiment of the present invention 10, compared with embodiment 1, the main distinction of the present embodiment is: the cross section of the column (6) in described cylinder body (4) is hexagon.
Embodiment 11:With reference to Figure 13, the structural representation of the embodiment of the present invention 11, compared with embodiment 1, the main distinction of the present embodiment is: the cross section of the column (6) in described cylinder body (4) and cylinder body (4) is square.
Embodiment 12:With reference to Figure 14, the structural representation of the embodiment of the present invention 12, compared with embodiment 1, the main distinction of the present embodiment is: the cross section of described cylinder body (4) is for circular, and the cross section of the column (6) in described cylinder body (4) is square.
Embodiment 13:With reference to Figure 15, the structural representation of the embodiment of the present invention 13, compared with embodiment 2, the main distinction of the present embodiment is: the cross section of the column (6) in described cylinder body (4) and cylinder body (4) is square.
Claims (3)
1. a damping unit, comprise cylinder body (4), sealing device (3) and back-moving spring (8), in cylinder body (4), be filled with resisting medium (5), it is characterized in that: the piston (7) that is provided with an annular at cylinder body (4), this piston (7) is provided with piston rod (2)
Described piston rod (2) from and only pass from one end of cylinder body (4), cylinder body (4) Nei center is axially arranged with the column (6) of a reducing, the minimum place of the diameter of this column (6) is less than the interior diameter of a circle of piston (7);
Described column (6) forms by three sections, centre be one section isometrical cylindrical, two ends are the reducing shape increasing gradually, or two ends are the reducing shape diminishing gradually.
2. damping unit according to claim 1, is characterized in that: described piston rod (2) is two above rhabodoids.
3. damping unit according to claim 1 and 2, is characterized in that: the cross section of described column (6) is circle or polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310245060.5A CN103343797B (en) | 2013-06-20 | 2013-06-20 | A kind of damping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310245060.5A CN103343797B (en) | 2013-06-20 | 2013-06-20 | A kind of damping unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103343797A CN103343797A (en) | 2013-10-09 |
| CN103343797B true CN103343797B (en) | 2016-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310245060.5A Expired - Fee Related CN103343797B (en) | 2013-06-20 | 2013-06-20 | A kind of damping unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN103343797B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002998B (en) * | 2015-07-22 | 2017-08-11 | 南京丹枫机械科技有限公司 | A kind of variable force viscous damper |
| CN108869619B (en) * | 2017-05-09 | 2023-10-13 | 昆山誉球模塑有限公司 | Damping structure for reducing resilience force of cover of automobile object shielding curtain |
| CN110952266A (en) * | 2018-09-27 | 2020-04-03 | 无锡小天鹅电器有限公司 | Washing machine and damping device thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2145891A (en) * | 1936-01-28 | 1939-02-07 | Jr John V Rice | Antishock spring |
| GB808931A (en) * | 1956-08-22 | 1959-02-11 | Oleo Pneumatics Ltd | Improvements in or relating to buffers for railway, tramway and like vehicles |
| US3554387A (en) * | 1967-08-08 | 1971-01-12 | Oleo Int Holdings Ltd | Buffers and draw gear for railways, tramways and like vehicles |
| CN103375526A (en) * | 2012-04-28 | 2013-10-30 | 齐齐哈尔轨道交通装备有限责任公司 | Elastic device, buffer and rail vehicle |
| CN203297507U (en) * | 2013-06-20 | 2013-11-20 | 王旭安 | Damping device |
-
2013
- 2013-06-20 CN CN201310245060.5A patent/CN103343797B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2145891A (en) * | 1936-01-28 | 1939-02-07 | Jr John V Rice | Antishock spring |
| GB808931A (en) * | 1956-08-22 | 1959-02-11 | Oleo Pneumatics Ltd | Improvements in or relating to buffers for railway, tramway and like vehicles |
| US3554387A (en) * | 1967-08-08 | 1971-01-12 | Oleo Int Holdings Ltd | Buffers and draw gear for railways, tramways and like vehicles |
| CN103375526A (en) * | 2012-04-28 | 2013-10-30 | 齐齐哈尔轨道交通装备有限责任公司 | Elastic device, buffer and rail vehicle |
| CN203297507U (en) * | 2013-06-20 | 2013-11-20 | 王旭安 | Damping device |
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| Publication number | Publication date |
|---|---|
| CN103343797A (en) | 2013-10-09 |
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