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Floating two-way multipoint bearing wheel applied to urban rail vehicle sliding door
Description
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Technical field
The present invention relates to city railway vehicle component technology field, be specifically related to a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door.
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 bearing wheels structure of the unidirectional carrying of general employing of the built-in sliding door that city railway vehicle is used and outside hanging door and permanent position realizes suspension, as the MY130DP1-2 of Shanghai Metro Line 1, and No. 9 line MY130DW1-2 of Beijing Metro, the built-in sliding door of the projects such as No. 11 line MY140DP5-2 of Shanghai Underground all adopts this kind of structure, and this bearing wheels structure exists following two large defects:
(1) unidirectional carrying can not be born perpendicular to door leaf direction impact load, online fault shows as door leaf under the effect being subject to perpendicular to the impact force of door leaf, the upper bearing wheels that is arranged on door leaf can be pushed away to slideway, cause safety failure, in the crowded open and close door process of passenger, especially have outstanding performance;
(2) existing bearing wheels is (in order to reduce noise, roller is generally selected nonmetals) long-term standing after, cause with the roller of slideway contact position and produce creep, there is depression, when bearing wheels is rolled again, bearing wheels and slideway produce to clash into and send larger noise.
Summary of the invention
Technical problem solved by the invention is the bearing wheels structure that overcomes existing unidirectional carrying and permanent position, can not bear perpendicular to door leaf direction impact load, easily the upper bearing wheels that is arranged on door leaf is pushed away to slideway, and have the problem that sliding noise is large.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, it is characterized in that: comprise bearing support, vertical direction bearing wheels, loaded axle and horizontal direction bearing wheels, described loaded axle is arranged on a side of bearing support, and be embedded in the center of bearing support, described vertical direction bearing wheels is two, and the symmetrical end that is arranged on bearing support, described horizontal direction bearing wheels is arranged on the upper surface of bearing support.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, it is characterized in that: described bearing support is isosceles triangular structure, and corner is round-corner transition, the drift angle place of described bearing support is provided with loaded axle installing hole, described loaded axle is arranged in loaded axle installing hole, and rotate at loaded axle installing hole, two edges of described bearing support are provided with vertical direction bearing wheels installing hole, described vertical direction bearing wheels is arranged in vertical direction bearing wheels installing hole by the first connecting axle, arc convex is extended at middle part, described bearing support base laterally, described arc convex is provided with horizontal direction bearing wheels installing hole, described horizontal direction bearing wheels is arranged in horizontal direction bearing wheels installing hole by the second connecting axle.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, is characterized in that: the vertical direction bearing wheels installing hole place of described bearing support is provided with and strengthens projection.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, is characterized in that: described loaded axle part in loaded axle installing hole on embedding bearing support is socketed with bearing holder (housing, cover) and packing ring successively.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, is characterized in that: the outer wall at described bearing support drift angle place is provided with layer protecting film.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, is characterized in that: the diameter of described horizontal direction bearing wheels is half of diameter of vertical direction bearing wheels.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, it is characterized in that: described vertical direction bearing wheels, horizontal direction bearing wheels include hub, carrying axle sleeve, interior dust cap, outer dust cap, described carrying axle sleeve is socketed in hub, described interior dust cap is arranged on the both sides of carrying axle sleeve, and described outer dust cap is arranged between hub and carrying axle sleeve.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, is characterized in that: described hub is that plastic alloy material is made.
Aforesaid a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, is characterized in that: described carrying axle sleeve adopts sliding bearing.
The invention has the beneficial effects as follows: the unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door of the present invention, solve former unidirectional bearing wheels supporting capacity poor, without the problem of lateral bearing, also reduced noise, stablized product quality, specific as follows:
(1) increase the contact area of vertical direction bearing wheels, adopt Multi-contact, increase the supporting capacity of vertical direction;
(2) increase the horizontal direction bearing wheels perpendicular to sliding door, bear side knock load, can also limit the lateral displacement of sliding door;
(3) bearing wheels of level and vertical direction is combined into independently parts, and each wheel after having assembled can be around the rotation of the axis of bearing support;
(4) the plastic alloy hub of bearing wheels and carrying axle sleeve integrated injection molding, guarantee the lubricant grease stable performance of bearing wheels, and adopt inside and outside double-deck dust cap sealing, prevents the invasion of dust impurity, improves bearing wheels application life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door of the present invention.
Fig. 2 is the structural representation of bearing support of the present invention.
Fig. 3 is of the present invention for the schematic diagram after the unsteady two-way multiple spot bearing wheels assembling of city railway vehicle sliding door.
Fig. 4 is the structural representation of vertical, horizontal direction bearing wheels of the present invention.
Fig. 5 is the structural representation in use city railway vehicle sliding door of the present invention.
Reference numeral implication is as follows:
1: bearing support; 2: vertical direction bearing wheels; 3: loaded axle; 4: packing ring; 5: horizontal direction bearing wheels; 6: the second connecting axles; 7: the first connecting axles; 8: bearing holder (housing, cover); 9: diaphragm; 10: loaded axle installing hole; 11: vertical direction bearing wheels installing hole; 12: arc convex; 13: horizontal direction bearing wheels installing hole; 14: strengthen projection; 15: hub; 16: carrying axle sleeve; 17: interior dust cap; 18: outer dust cap; 19: sliding door guide rail; 20: the two-way multiple spot bearing wheels of floating; 21: connector; 22: auxiliary installation piece.
The specific embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figures 1 and 2, unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door of the present invention, comprise bearing support 1, vertical direction bearing wheels 2, loaded axle 3 and horizontal direction bearing wheels 5, loaded axle 3 is arranged on a side of bearing support 1, and be embedded in the center of bearing support 1, vertical direction bearing wheels 2 is two, and the symmetrical end that is arranged on bearing support 1, horizontal direction bearing wheels 5 is arranged on the upper surface of bearing support 1, vertical direction is provided with two symmetrically arranged vertical direction bearing wheels 2, Multi-contact sliding door guide rail, increase the supporting capacity of vertical direction, increase is perpendicular to the horizontal direction bearing wheels 5 of sliding door, bear side knock load, the diameter of the horizontal direction bearing wheels 5 arranging is here half of diameter of vertical direction bearing wheels 2, the diameter of vertical direction bearing wheels 2 and sliding door guide rail width match, the diameter of horizontal direction bearing wheels 5 is less, can limit the lateral displacement of sliding door.
Described bearing support 1 is isosceles triangular structure, and corner is round-corner transition, triangular structure fastness is high, can increase the supporting capacity of bearing support 1, round-corner transition, place sharp corner scratch sliding door or installation personnel, the drift angle place of bearing support 1 is provided with loaded axle installing hole 10, loaded axle 3 is arranged in loaded axle installing hole 10, and rotate at loaded axle installing hole 10, two edges of bearing support 1 are provided with vertical direction bearing wheels installing hole 11, vertical direction bearing wheels 2 is arranged in vertical direction bearing wheels installing hole 11 by the first connecting axle 7, arc convex 12 is extended at bearing support 1 middle part, base laterally, arc convex 12 is provided with horizontal direction bearing wheels installing hole 13, horizontal direction bearing wheels 5 is arranged in horizontal direction bearing wheels installing hole 13 by the second connecting axle 6, vertical direction bearing wheels installing hole 11 places of bearing support 1 are provided with and strengthen projection 14, further increase the supporting capacity of bearing support 1, vertical direction bearing wheels 2 and horizontal direction bearing wheels 5 can be respectively with the first connecting axles 7, the second connecting axle 6 is axle Arbitrary Rotation.
Described loaded axle 3 part in loaded axle installing hole 10 on embedding bearing support 1 is socketed with bearing holder (housing, cover) 8 and packing ring 4 successively, as shown in Figure 3, loaded axle 3 can rotate around the direction of arrow, packing ring 4 can prevent that dust from entering bearing holder (housing, cover) 8, affect the rotation of loaded axle 3, bearing holder (housing, cover) 8 can guarantee that loaded axle 3 is in the normal rotation of loaded axle installing hole 10, and bearing support 1 does not does not wear and tear.
The outer wall at described bearing support 1 drift angle place is provided with layer protecting film 9; the two-way multiple spot bearing wheels of floating of the present invention is being installed, during to sliding door guide rail, the EDGE CONTACT friction of bearing support 1 drift angle place and sliding door guide rail; diaphragm 9 can prevent the wearing and tearing of bearing support 1, increases the service life.
As shown in Figure 4, described vertical direction bearing wheels 2, horizontal direction bearing wheels 5 includes hub 15, carrying axle sleeve 16, interior dust cap 17, outer dust cap 18, described carrying axle sleeve 16 is socketed in hub 15, hub 15 is made for plastic alloy material, carrying axle sleeve 16 adopts sliding bearing, and hub 15 forms with carrying axle sleeve 16 integrated injection moldings, , guarantee the lubricant grease stable performance of bearing wheels, interior dust cap 17 is arranged on the both sides of carrying axle sleeve 16, outer dust cap 18 is arranged between hub 15 and carrying axle sleeve 16, in employing, outer double-deck dust cap sealing, prevent the invasion of dust impurity, improve bearing wheels application life.
As shown in Figure 5, the practicality of the unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door of the present invention is at the structure chart of sliding door, 19 hold the sliding door guide rail of making for aluminium extruded sections, 20 is the two-way multiple spot bearing wheels of floating of the present invention, 21 is for connecting the connector of sliding door, 22 auxiliary installation pieces for the two-way multiple spot bearing wheels of floating, the two-way multiple spot bearing wheels 20 of floating can be slided arbitrarily in sliding door guide rail 19, the motion of drive sliding door, not only can bear from horizontal exerting oneself, and, holding capacity in the vertical direction also improves greatly, extend application life, novel structure, have a good application prospect.
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 (9)
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Claims (9)
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1. the unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door, it is characterized in that: comprise bearing support (1), vertical direction bearing wheels (2), loaded axle (3) and horizontal direction bearing wheels (5), described loaded axle (3) is arranged on a side of bearing support (1), and be embedded in the center of bearing support (1), described vertical direction bearing wheels (2) is two, and symmetry is arranged on the end of bearing support (1), described horizontal direction bearing wheels (5) is arranged on the upper surface of bearing support (1).
2. a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door according to claim 1, it is characterized in that: described bearing support (1) is isosceles triangular structure, and corner is round-corner transition, the drift angle place of described bearing support (1) is provided with loaded axle installing hole (10), described loaded axle (3) is arranged in loaded axle installing hole (10), and rotate at loaded axle installing hole (10), two edges of described bearing support (1) are provided with vertical direction bearing wheels installing hole (11), described vertical direction bearing wheels (2) is arranged in vertical direction bearing wheels installing hole (11) by the first connecting axle (7), arc convex (12) is extended at middle part, described bearing support (1) base laterally, described arc convex (12) is provided with horizontal direction bearing wheels installing hole (13), described horizontal direction bearing wheels (5) is arranged in horizontal direction bearing wheels installing hole (13) by the second connecting axle (6).
3. a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door according to claim 1 and 2, is characterized in that: the vertical direction bearing wheels installing hole (11) of described bearing support (1) locates to be provided with reinforcement projection (14).
4. a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door according to claim 1 and 2, is characterized in that: the part of described loaded axle (3) in embedding the upper loaded axle installing hole (10) of bearing support (1) is socketed with bearing holder (housing, cover) (8) and packing ring (4) successively.
5. a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door according to claim 1 and 2, is characterized in that: the outer wall at described bearing support (1) drift angle place is provided with layer protecting film (9).
6. a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door according to claim 1, is characterized in that: the diameter of described horizontal direction bearing wheels (5) is half of diameter of vertical direction bearing wheels (2).
7. according to a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door described in claim 1 or 6, it is characterized in that: described vertical direction bearing wheels (2), horizontal direction bearing wheels (5) include hub (15), carrying axle sleeve (16), interior dust cap (17), outer dust cap (18), described carrying axle sleeve (16) is socketed in hub (15), and integrated injection molding forms, described interior dust cap (17) is arranged on the both sides of carrying axle sleeve (16), and described outer dust cap (18) is arranged between hub (15) and carrying axle sleeve (16).
8. a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door according to claim 7, is characterized in that: described hub (15) is made for plastic alloy material.
9. a kind of unsteady two-way multiple spot bearing wheels for city railway vehicle sliding door according to claim 7, is characterized in that: described carrying axle sleeve (16) adopts sliding bearing.