CN203666669U - Higher pair connection mechanism of feed-screw-nut-driven sliding door of urban rail vehicle - Google Patents
Higher pair connection mechanism of feed-screw-nut-driven sliding door of urban rail vehicle Download PDFInfo
- Publication number
- CN203666669U CN203666669U CN201320885887.8U CN201320885887U CN203666669U CN 203666669 U CN203666669 U CN 203666669U CN 201320885887 U CN201320885887 U CN 201320885887U CN 203666669 U CN203666669 U CN 203666669U
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- China
- Prior art keywords
- higher pair
- nut
- sliding door
- shift fork
- connection mechanism
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- Expired - Lifetime
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Abstract
The utility model discloses a higher pair connection mechanism of a feed-screw-nut-driven sliding door of an urban rail vehicle. The higher pair connection mechanism is arranged on the two sides of a drive screw rod central bearing piece, and comprises round nuts, shifting forks and higher pair connecting pieces. A drive screw rod is sleeved with the round nuts, notches for clamping and fixing two fork arms of each shifting fork are symmetrically formed in the outer wall of each round nut, the rear end of each shifting fork is connected with the corresponding higher pair connecting piece, and the higher pair connecting pieces are used for being hinged to a left door installation seat or a right door installation seat. Abrasion of the higher pair connection mechanism is reduced, the service life of the drive screw rod is guaranteed, and meanwhile the shifting forks slightly swing relative to the round nuts to adapt to fluctuation of movement of the round nuts on the drive screw rod. Service life is prolonged, the structure is simple, and the higher pair connection mechanism is easy to achieve, and has good application prospects.
Description
Technical field
The utility model relates to city railway vehicle component technology field, is specifically related to a kind of city railway vehicle feed screw nut and drives the higher pair bindiny mechanism of sliding door.
Background technology
Along with the fast development of city size, the trip that urban track traffic can be convenient for people to, be widely applied, at present, city railway vehicle feed screw nut used drives sliding door, transfer route is long, and, feed screw nut pair in existing driving screw mandrel is connected with door leaf, drive screw mandrel need to carry door leaf and move the pressure rocking, tradition adopts the version of H type frame, take up room large, screw mandrel is elongate rod, screw mandrel flexural deformation after feed screw nut pair carrying, the theoretical position of the H frame off-design of connection wire rod pair of nut, transmit the power that pushes away and feed screw nut pair theoretical axis and form the angle of non-90o, force the theoretical axis of nut to form angle with the theoretical axis that drives screw mandrel, the wearing and tearing of feed screw nut pair are aggravated, shorten its service life.
Utility model content
The technical matters that the utility model solves is to overcome existing driving screw mandrel, takes up room large, and the transfer route of motion and power is long, and to feed screw nut pair quick abrasion, the life-span of feed screw nut pair is short, needs the problem of often changing.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of city railway vehicle feed screw nut drives the higher pair bindiny mechanism of sliding door, it is characterized in that: higher pair bindiny mechanism is arranged on the both sides that drive screw mandrel central support pieces, described higher pair bindiny mechanism comprises circular nut, shift fork and higher pair attaching parts, described circular nut is socketed in and drives on screw mandrel, on the outer wall of described circular nut, be arranged with the breach for connecting and fixing two yokes of shift fork, the rear end of described shift fork is connected with higher pair attaching parts, and described higher pair attaching parts is for hinged with left-hand door mount pad or right mount pad.
Aforesaid a kind of city railway vehicle feed screw nut drives the higher pair bindiny mechanism of sliding door, it is characterized in that: the rear end of described shift fork is provided with mounting hole, and described higher pair attaching parts is movably connected in mounting hole by movable rotation-shaft.
Aforesaid a kind of city railway vehicle feed screw nut drives the higher pair bindiny mechanism of sliding door, it is characterized in that: the breach on described circular nut outer wall is arc notch, and the sidewall of described arc notch is provided with the yoke cambered surface locating dowel pin for clamping shift fork.
The beneficial effects of the utility model are: city railway vehicle feed screw nut of the present utility model drives the higher pair bindiny mechanism of sliding door, reduce the wearing and tearing to circular nut, ensure to drive the service life of screw mandrel, changing traditional H frame into higher pair connects, the suffered antagonistic force of circular nut all the time with drive the axis of screw mandrel parallel, reduce the wearing and tearing of circular nut, the relative circular nut of shift fork has trace to swing the fluctuation of circular nut motion on adaptation driving screw mandrel simultaneously, extend service life on it, simple in structure, easily realize, have a good application prospect.
Brief description of the drawings
Fig. 1 is the structural representation that city railway vehicle feed screw nut of the present utility model drives the higher pair bindiny mechanism of sliding door.
Fig. 2 is the schematic diagram driving on leading screw that is installed to of the city railway vehicle feed screw nut of the present utility model higher pair bindiny mechanism that drives sliding door.
Reference numeral implication is as follows:
1: circular nut; 2: shift fork; 201: mounting hole; 3: higher pair attaching parts; 301: movable rotation-shaft; 4: breach; 401: cambered surface locating dowel pin; 5: drive screw mandrel; 6: central support pieces; 7: left-hand door mount pad; 8: right mount pad.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figures 1 and 2, city railway vehicle feed screw nut of the present utility model drives the higher pair bindiny mechanism of sliding door, higher pair bindiny mechanism is arranged on the both sides that drive screw mandrel 5 central support pieces 6, higher pair bindiny mechanism, comprise circular nut 1, shift fork 2 and higher pair attaching parts 3, circular nut 1 is socketed in and drives on screw mandrel 5, on the outer wall of circular nut 1, be arranged with the breach 4 for connecting and fixing 2 two yokes of shift fork, the rear end of shift fork 2 is connected with higher pair attaching parts 3, higher pair attaching parts 3 is for hinged with left-hand door mount pad 7 or right mount pad 8, the below of left-hand door mount pad 7 or right mount pad 8 connects the left-hand door fan of sliding door, right door leaf, drive screw mandrel 5 to rotate, drive circular nut 1 to move, control left-hand door fan, right door leaf moves, realize closing or opening of sliding door, the rear end of shift fork 2 is provided with mounting hole 201, higher pair attaching parts 3 is movably connected in mounting hole 201 by movable rotation-shaft 301, higher pair attaching parts 3 rotates taking movable rotation-shaft 301 as axle, breach 4 on circular nut 1 outer wall is arc notch, the sidewall of arc notch is provided with the cambered surface locating dowel pin 401 for clamping shift fork 2 yokes, improve the fastness that shift fork 2 is connected with circular nut 1, shift fork 2 curved surfaces are connected in arc notch, can suitably swing at the arc notch of circular nut 1, and be symmetrical arranged, can reduce the offset loading force of circular nut 1 circular nut inwall in transferring power process, in the higher pair attaching parts 3 of guarantee shift fork 2 rear ends, load force is parallel with the axis of driving screw mandrel 5 all the time, slow down the wearing and tearing of circular nut 1, the relative circular nut 1 of shift fork 2 has trace to swing, can adapt to drive the fluctuation that on screw mandrel 5, circular nut 1 moves, extend the service life of circular nut 1.
More than show and described groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a city railway vehicle feed screw nut drives the higher pair bindiny mechanism of sliding door, it is characterized in that: higher pair bindiny mechanism is arranged on the both sides that drive screw mandrel central support pieces, described higher pair bindiny mechanism comprises circular nut (1), shift fork (2), higher pair attaching parts (3), described circular nut (1) is socketed in and drives on screw mandrel, on the outer wall of described circular nut (1), be arranged with the breach (4) for connecting and fixing (2) two yokes of shift fork, the rear end of described shift fork (2) is connected with higher pair attaching parts (3), described higher pair attaching parts (3) is for hinged with left-hand door mount pad or right mount pad.
2. a kind of city railway vehicle feed screw nut according to claim 1 drives the higher pair bindiny mechanism of sliding door, it is characterized in that: the rear end of described shift fork (2) is provided with mounting hole (201), described higher pair attaching parts (3) is movably connected in mounting hole (201) by movable rotation-shaft (301).
3. a kind of city railway vehicle feed screw nut according to claim 1 drives the higher pair bindiny mechanism of sliding door, it is characterized in that: the breach (4) on described circular nut (1) outer wall is arc notch, and the sidewall of described arc notch is provided with the cambered surface locating dowel pin (401) for clamping shift fork (2) yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885887.8U CN203666669U (en) | 2013-12-31 | 2013-12-31 | Higher pair connection mechanism of feed-screw-nut-driven sliding door of urban rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885887.8U CN203666669U (en) | 2013-12-31 | 2013-12-31 | Higher pair connection mechanism of feed-screw-nut-driven sliding door of urban rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203666669U true CN203666669U (en) | 2014-06-25 |
Family
ID=50962989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885887.8U Expired - Lifetime CN203666669U (en) | 2013-12-31 | 2013-12-31 | Higher pair connection mechanism of feed-screw-nut-driven sliding door of urban rail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203666669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723155A (en) * | 2013-12-31 | 2014-04-16 | 南京康尼机电股份有限公司 | Higher pair connecting mechanism for driving sliding door through lead screw nut of urban rail vehicle |
-
2013
- 2013-12-31 CN CN201320885887.8U patent/CN203666669U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723155A (en) * | 2013-12-31 | 2014-04-16 | 南京康尼机电股份有限公司 | Higher pair connecting mechanism for driving sliding door through lead screw nut of urban rail vehicle |
| CN103723155B (en) * | 2013-12-31 | 2016-11-16 | 南京康尼机电股份有限公司 | A kind of city railway vehicle feed screw nut drives the higher pair bindiny mechanism of sliding door |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |
|
| CX01 | Expiry of patent term |