CN103711397A - Middle supporting mechanism of door-moving driving screw rod of urban rail vehicle - Google Patents
Middle supporting mechanism of door-moving driving screw rod of urban rail vehicle Download PDFInfo
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- CN103711397A CN103711397A CN201310754317.XA CN201310754317A CN103711397A CN 103711397 A CN103711397 A CN 103711397A CN 201310754317 A CN201310754317 A CN 201310754317A CN 103711397 A CN103711397 A CN 103711397A
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- bearing
- screw mandrel
- middle supporting
- cover plate
- support mechanisms
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Abstract
The invention discloses a middle supporting mechanism of a door-moving driving screw rod of an urban rail vehicle. The middle supporting mechanism comprises a middle supporting base, a Hover bearing and a covering board, wherein the middle supporting base is provided with an installation hole used for installing the Hover bearing which is composed of two bearing blocks of semicircle structures, the edges of the two bearing blocks are provided with semicircle notches, the Hover bearing is located in the installation hole through a locating pin, the locating pin is inserted in a round notch which is formed by the two semicircle notches in the edges of the two bearing blocks in a spliced mode, the covering board is fixed on one side of the installation hole of the middle supporting base, an elastic seal rubber ring is further arranged between the Hover bearing and the covering board, and the Hover bearing is sleeved with the elastic seal rubber ring located in the installation hole. The middle supporting mechanism facilitates replacing and maintaining of the bearing, one person can complete replacing and maintaining in few minutes, maintaining cost is greatly lowered, axial movement of the Hover bearing in the middle supporting base is prevented, and shaking of the driving screw rod is buffered in a transmission process. The middle supporting mechanism is novel in structure and ingenious in design, and has good application prospect.
Description
Technical field
The present invention relates to city railway vehicle component technical field, be specifically related to the medial support mechanisms that a kind of city railway vehicle sliding door drives screw mandrel.
Background technology
Fast development along with city size, the trip that urban track traffic can be convenient for people to, be widely applied, at present, the driving screw mandrel of city railway vehicle sliding door used is elongate rod, also longer than the width of sliding door, tradition distance, as shown in Figure 1, in order to improve the application life that drives screw mandrel, medial support mechanisms need to be set, bear and drive screw mandrel when transmission, the fluctuation occurring, but, existing medial support mechanisms use with the solid box that drives screw mandrel one, because axle sleeve is consumable accessory, need periodic replacement, but axle sleeve is changed quite trouble, remove and drive screw mandrel and coupled driver part (as motor, bearing support, left and right nut assembly etc.) could change, after replacing, also to do corresponding adjustment to door system, execute-in-place workload is large, length expends time in, waste time and energy.
Summary of the invention
Technical problem solved by the invention is to overcome existing medial support mechanisms for the solid box with driving screw mandrel one, and axle sleeve is consumable accessory, needs periodic replacement, and axle sleeve is changed quite trouble, and execute-in-place workload is large, the length that expends time in, the problem wasting time and energy.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel, it is characterized in that: described medial support mechanisms is socketed in the center that drives screw mandrel, medial support mechanisms comprises intermediate supports seat, breathe out not bearing and cover plate, described intermediate supports seat is provided with for installing and breathes out the not installing hole of bearing, described Kazakhstan not bearing is the drive tab formation of two semi-circular structure, the edge of two drive tab is provided with half round cut, described Kazakhstan not bearing is positioned in installing hole by alignment pin, described alignment pin is plugged in the circumferential notch that Liang Kuai drive tab edge half round cut is spliced into, described cover plate is fixed on installing hole one side of intermediate supports seat, described Kazakhstan is not also provided with elastic packing rubber ring between bearing and cover plate, described elastic packing rubber ring sleeve is connected on to be breathed out not on bearing, and be positioned at installing hole.
Aforesaid a kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel, it is characterized in that: described cover plate is fixed on installing hole one side of intermediate supports seat by hold-down screw, the quantity of hold-down screw is four, is distributed in four jiaos of cover plate.
Aforesaid a kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel, it is characterized in that: described cover plate is provided with perforation, drives the screw mandrel not perforation of bearing and cover plate of nested Kazakhstan successively.
Aforesaid a kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel, it is characterized in that: described intermediate supports seat is cuboid shape, and corner is round-corner transition.
Aforesaid a kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel, it is characterized in that: the edge in described installing hole is provided with for placing the breach of elastic packing rubber ring.
The invention has the beneficial effects as follows: a kind of city railway vehicle sliding door of the present invention drives the medial support mechanisms of screw mandrel, not bearing is breathed out in employing, be arranged in intermediate supports seat, being convenient to bearing replacing safeguards, need unclamp dog screw and pull down cover plate replaceable, after replacing also without doing any other adjustment work, a number minute can complete, greatly reduce maintenance cost, and, increase elastic packing rubber ring sleeve is connected on breathes out not bearing, and be positioned at intermediate supports seat, prevent from breathing out the not axial motion of bearing in intermediate supports seat, and to driving the fluctuation of screw mandrel in transmission process to play cushioning effect, novel structure, design ingenious, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation that city railway vehicle sliding door drives screw mandrel.
Fig. 2 is the structural representation that city railway vehicle sliding door of the present invention drives the medial support mechanisms of screw mandrel.
Fig. 3 is the structural representation after the installation of medial support mechanisms of the present invention.
Fig. 4 is the structural representation that medial support mechanisms buffering of the present invention drives screw rod transmission fluctuation.
Reference numeral implication is as follows:
1: intermediate supports seat; 2: breathe out not bearing; 3: cover plate; 4: installing hole; 5: half round cut; 6: elastic packing rubber ring; 7: alignment pin; 8: hold-down screw; 9: perforation; 10: breach; 11: drive screw mandrel.
The specific embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As 2 and Fig. 3 as shown in, city railway vehicle sliding door of the present invention drives the medial support mechanisms of screw mandrel, medial support mechanisms is socketed in the center that drives screw mandrel 11, medial support mechanisms comprises intermediate supports seat 1, breathe out not bearing 2 and cover plate 3, intermediate supports seat 1 is cuboid shape, and corner is round-corner transition, the corner that prevents intermediate supports seat 1 is sharp, scratch installation personnel, intermediate supports seat 1 is provided with for installing and breathes out the not installing hole 4 of bearing 2, breathing out not bearing 2 is the drive tab formation of two semi-circular structure, installation rear drive screw mandrel 11 is positioned at the drive tab center of two semi-circular structure, and the edge of two drive tab is provided with half round cut 5, breathing out not bearing 2 is positioned in installing hole 4 by alignment pin 7, alignment pin 7 is plugged in the circumferential notch that Liang Kuai drive tab edge half round cut 5 is spliced into from the side of middle supporting seat 1, cover plate 3 is fixed on installing hole 4 one sides of intermediate supports seat 1, cover plate 3 prevents from breathing out not and enters dust in bearing 2, the not greasy property of bearing 2 is breathed out in impact, cover plate 3 is fixed on installing hole 4 one sides of intermediate supports seat 1 by hold-down screw 8, the quantity of hold-down screw 8 is four, be distributed in four jiaos of cover plate 3.
Described Kazakhstan is not also provided with elastic packing rubber ring 6 between bearing 2 and cover plate 3, elastic packing rubber ring 6 is socketed in to be breathed out not on bearing 2, and be positioned at installing hole 4, as shown in Figure 4, edge in installing hole 4 is provided with for placing the breach 10 of elastic packing rubber ring 6, elastic packing rubber ring 6 prevents from breathing out the not axial motion of bearing 2 in intermediate supports seat 1, and to driving the fluctuation of screw mandrel 11 in transmission process to play cushioning effect.
Described cover plate 3 is provided with perforation 9, drive the screw mandrel 11 not perforation 9 of bearing 2 and cover plate 3 of nested Kazakhstan successively, elastic packing rubber ring 6 can effectively be protected the fluctuation that drives screw mandrel 11 to occur, with breathe out not bearing 2 and contact with soft, extend and breathe out the not application life of bearing 2, and, breathe out not bearing 2 for breathing out not structure, it is convenient to change, do not need to dismantle whole carrying driving mechanism, only need to change the drive tab of two semi-circular structure, time saving and energy saving, during replacing, unclamp hold-down screw 8, pull down cover plate 3, the drive tab of two semi-circular structure can wearing and tearing along the axial extraction that drives screw mandrel, the axle sleeve more renewing, alignment pin 7 plays positioning action, again easy for installation, a number minute can complete, greatly reduce maintenance cost.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. a city railway vehicle sliding door drives the medial support mechanisms of screw mandrel, it is characterized in that: described medial support mechanisms is socketed in the center that drives screw mandrel, medial support mechanisms comprises intermediate supports seat (1), breathe out not bearing (2) and cover plate (3), described intermediate supports seat (1) is provided with for installing and breathes out the not installing hole (4) of bearing (2), described Kazakhstan not bearing (2) is the drive tab formation of two semi-circular structure, the edge of two drive tab is provided with half round cut (5), described Kazakhstan not bearing (2) is positioned in installing hole (4) by alignment pin (7), described alignment pin (7) is plugged in the circumferential notch that Liang Kuai drive tab edge half round cut (5) is spliced into, described cover plate (3) is fixed on installing hole (4) one sides of intermediate supports seat (1), described Kazakhstan is not also provided with elastic packing rubber ring (6) between bearing (2) and cover plate (3), described elastic packing rubber ring (6) is socketed in to be breathed out not on bearing (2), and be positioned at installing hole (4).
2. a kind of city railway vehicle sliding door according to claim 1 drives the medial support mechanisms of screw mandrel, it is characterized in that: described cover plate (3) is fixed on installing hole (4) one sides of intermediate supports seat (1) by hold-down screw (8), the quantity of hold-down screw (8) is four, is distributed in four jiaos of cover plate (3).
3. a kind of city railway vehicle sliding door according to claim 1 and 2 drives the medial support mechanisms of screw mandrel, it is characterized in that: described cover plate (3) is provided with perforation (9) the not perforation (9) of bearing (2) and cover plate (3) of nested Kazakhstan successively of driving screw mandrel.
4. a kind of city railway vehicle sliding door according to claim 1 drives the medial support mechanisms of screw mandrel, it is characterized in that: described intermediate supports seat (1) is cuboid shape, and corner is round-corner transition.
5. a kind of city railway vehicle sliding door according to claim 1 drives the medial support mechanisms of screw mandrel, it is characterized in that: the edge in described installing hole (4) is provided with the breach (10) for placing elastic packing rubber ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754317.XA CN103711397B (en) | 2013-12-31 | 2013-12-31 | A kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754317.XA CN103711397B (en) | 2013-12-31 | 2013-12-31 | A kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711397A true CN103711397A (en) | 2014-04-09 |
| CN103711397B CN103711397B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310754317.XA Active CN103711397B (en) | 2013-12-31 | 2013-12-31 | A kind of city railway vehicle sliding door drives the medial support mechanisms of screw mandrel |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2813829Y (en) * | 2005-09-14 | 2006-09-06 | 汤超 | Telescopic device |
| CN201412008Y (en) * | 2009-06-15 | 2010-02-24 | 吴道平 | Long-axis screw mandrel device capable of stable operation at high altitude |
| CN202065639U (en) * | 2011-05-05 | 2011-12-07 | 常州紫旭光电有限公司 | Adjustable column |
| CN203669597U (en) * | 2013-12-31 | 2014-06-25 | 南京康尼机电股份有限公司 | Intermediate support mechanism of sliding door drive screw rod of urban rail vehicle |
-
2013
- 2013-12-31 CN CN201310754317.XA patent/CN103711397B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2813829Y (en) * | 2005-09-14 | 2006-09-06 | 汤超 | Telescopic device |
| CN201412008Y (en) * | 2009-06-15 | 2010-02-24 | 吴道平 | Long-axis screw mandrel device capable of stable operation at high altitude |
| CN202065639U (en) * | 2011-05-05 | 2011-12-07 | 常州紫旭光电有限公司 | Adjustable column |
| CN203669597U (en) * | 2013-12-31 | 2014-06-25 | 南京康尼机电股份有限公司 | Intermediate support mechanism of sliding door drive screw rod of urban rail vehicle |
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| Publication number | Publication date |
|---|---|
| CN103711397B (en) | 2015-12-23 |
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