CN203318431U - Axial box suspension-type height-self-adjusting bogie of railway vehicle - Google Patents
Axial box suspension-type height-self-adjusting bogie of railway vehicle Download PDFInfo
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- CN203318431U CN203318431U CN2013202730029U CN201320273002U CN203318431U CN 203318431 U CN203318431 U CN 203318431U CN 2013202730029 U CN2013202730029 U CN 2013202730029U CN 201320273002 U CN201320273002 U CN 201320273002U CN 203318431 U CN203318431 U CN 203318431U
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Abstract
The utility model provides an axial box suspension-type height-self-adjusting bogie of a railway vehicle. An automatic spring deflection adjusting device serving as a primary suspension system is arranged between a side frame assembly and an axial box supporting base on the upper portion of a wheel shaft assembly. The device mainly comprises an inner cylinder body, an outer cylinder body, an inner piston, an outer piston, a push-pull rod, a rubber bearing spring and a top bearing cover. The device is provided with four hydraulic oil cavities in an enclosed mode. An axial through hole of the inner piston is provided with a first one-way valve for controlling the on-off state of the first hydraulic oil cavity and the second hydraulic oil cavity, a second one-way valve used for controlling the on-off state of the second hydraulic oil cavity and the third hydraulic oil cavity is arranged in a through hole in the side wall of the bottom of the inner cylinder body, the top of the inner cylinder body is provided with a loop switch device used for controlling the on-off state of the first hydraulic oil cavity and the fourth hydraulic oil cavity, and the fourth hydraulic oil cavity is directly communicated with the third hydraulic oil cavity. By means of the dynamic balance function of the device in the operating vibration process of a vehicle body, the coupler height difference of the vehicle in an empty state and in a load state can be eliminated, work deflection of the bearing spring can be increased, low dynamic performance between tracks can be improved in the greatest degree, and the device is especially suitable for a bogie with large axial load.
Description
Technical field
The utility model relates to bogies for railway vehicles, refers to that particularly a kind of railway vehicle axle box suspension type is from heightening bogie truck.
Background technology
Rolling stock is that the traction and the braking adhesion friction force that by interacting between the wheel on bogie truck and railroad track, produce are realized operation.Along with the raising of rolling stock load-carrying, vehicle axle weight is corresponding increase also, will inevitably cause the increase of application force between wheel track, and then accelerates the wearing and tearing of wheel and rail.Practical experience shows, when vehicle axle weight increases, wheel Rail Contact Stresses increases, wheel tread vertically, side-friction and wheel track lateral pressure increase thereupon, cause vertical wearing and tearing, flank wear and the Plastic Flow of rail also to increase, the wearing and tearing of wheel rim and tread are corresponding increase also thereupon.
In order to alleviate the wheel-rail wear of heavy-duty vehicle, most important to the optimal design of bogie truck.Bogie truck is the power carrier between vehicle and track, and traditional bogie truck mainly contains following two kinds of versions: a kind of is three-piece bogie, and another kind is the framework type bogie truck.Three-piece bogie mainly adopts the central bearing spring as the secondary suspension system, it is when vehicle operating, because the part quality below the secondary suspension system directly acts on wheel track without spring damping, therefore the vertical effect power between wheel track is very large, causes this type of bogie truck to have the defects such as unsprung weight is large, wheel-rail wear is serious, the easy fracture of hitch.The framework type bogie truck mainly adopts the axle box bearing spring as primary spring, this type of bogie truck is compared three-piece bogie and is had the advantages such as critical speed is high, unsprung weight is little, but it only is applicable to the less axle weight of configuration, can't meet the modern railways transportation to the increasing demand of large axle load bogie.
And above-mentioned two kinds of bogie trucks all are subject to the restriction of sky, loaded vehicle hitch height, the spring work amount of deflection on designed bogie truck is little.Spring on bogie truck is one of key components and parts of vehicle smooth running, and the vertical dynamics performance of the size of camber of spring and vehicle is proportional, and camber of spring is less, and the vertical dynamics performance of vehicle is poorer.Take traditional roller bearing adapter stabilizer bar as example, and the empty wagons amount of deflection of its bearing spring is only 20mm left and right (only having the 5mm left and right in the AAR standard), and the loaded vehicle equivalent deflection of bearing spring is about 40mm left and right, the poor 45mm that generally is no more than of amount of deflection of sky, loaded vehicle bearing spring.Like this, when the vehicle heavy service, can not effectively reduce the dynamic deformation from motion between wheel track, cause the abrasion between wheel track to increase, the operating cycles of the key components and parts such as bolster, bogie side frame shortens, and maintenance workload and the maintenance cost of wheel track increase substantially.Simultaneously, the hitch diff-H owing to existing between empty and load, cause the hitch unbalance stress, easily causes the hitch fracture accident, affects vehicle operating safety.
Therefore, the structure of conventional bogie is deepened to research, further to improve its low tractive performance, to alleviate the abrasion between wheel track, the service life of prolongation bogie truck, the riding quality that improves railway vehicle is had important practical significance.
Summary of the invention
The purpose of this utility model is intended to for the existing deficiency of conventional bogie, provides a kind of and can effectively eliminate bogie truck empty and load diff-H, significantly increases the work amount of deflection of bearing spring, improves to greatest extent the railway vehicle axle box suspension type of low tractive performance between wheel track from heightening bogie truck.
For achieving the above object, the designed railway vehicle axle box suspension type of the utility model is heightened bogie truck certainly, comprise wheel shaft composition, bogie side frame composition, bolster, central bearing spring and corresponding foundation brake rigging, the two ends drawing strickle guide that described bogie side frame forms is carried on described wheel shaft by the axle box bearing and forms, the two ends of described bolster are carried on the central square frame of described bogie side frame composition by described central bearing spring, above described bolster, center and both sides are respectively arranged with truck center plate and bottom side bearing, and its special character is:
Be provided with the camber of spring automatic regulating apparatus between the two ends drawing strickle guide that described bogie side frame forms and described axle box bearing, described camber of spring automatic regulating apparatus has the outer cylinder body of the mounting seat of doubling as, be provided with outer piston in described outer cylinder body, described outer piston is cavity structure, and outer cylinder body is stretched out at described outer piston top and rotational-like rubber bearing spring is connected as a single entity with the carrying top cover by hollow;
Also coaxially be fixed with inner cylinder body in described outer cylinder body, described inner cylinder body is embedded in the cavity of outer piston and its free-running fit, be provided with inner carrier in described inner cylinder body, described inner carrier top is connected with an end of pull bar, and the other end of described pull bar stretches out outer piston and is connected with the carrying top cover is inboard;
Described inner carrier top to the space of carrying the top cover inboard forms the first fluid chamber, the space of described inner carrier bottom to inner cylinder body bottom forms the second fluid chamber, the annulus of described outer piston bottom to outer cylinder body bottom forms the 3rd fluid chamber, and described outer piston cavity inner wall to the annular gap of inner cylinder body outer wall forms the 4th fluid chamber;
Be provided with control hydraulic oil in described inner carrier axially extending bore and flow to the first check valve of the second fluid chamber from the first fluid chamber, be provided with control hydraulic oil in the sidewall through hole of described inner cylinder body bottom and flow to the second check valve of the 3rd fluid chamber from the second fluid chamber, described inner cylinder body top is provided with the circuit switching device of controlling the first fluid chamber and the 4th fluid chamber upper end break-make, and described the 4th fluid chamber lower end directly is communicated with the 3rd fluid chamber.
As one of preferred version, described circuit switching device comprises can be along the axially movable collar of outer piston cavity inner wall, be provided with fuel return hole on the ring wall of described collar bottom, described fuel return hole is closed condition at collar bottom ring wall with inner cylinder body top seam during nested the cooperation, be provided with the seal ring that cuts off the first fluid chamber and the 4th fluid chamber between described collar outer wall and outer piston cavity inner wall, be provided with the touching switch on described collar inwall, described touching switch coordinates with its top flange butt when inner carrier moves upward to the setting stroke, thereby move on the drive collar and make the fuel return hole on its bottom ring wall be transformed into open mode, and then the first fluid chamber is communicated with the 4th fluid chamber by fuel return hole.
Further, described touching switch is big up and small down, the toroidal ring structure of intermediate step transition, comprise top ring, adapter ring platform and bottom ring, described top ring be arranged on collar inwall seam below and with its bearing fit, the bottom flange of described bottom ring can coordinate with inner carrier top flange butt, on described adapter ring platform, is provided with return opening.
As two of preferred version, described circuit switching device comprises the collar with outer piston cavity inner wall free-running fit, the described collar bottom ring wall and nested being tightly connected of inner cylinder body top seam, be provided with fuel return hole on the ring wall of described collar middle part, be provided with the seal ring that cuts off the first fluid chamber and the 4th fluid chamber between described collar outer wall top and outer piston cavity inner wall, be provided with the touching switch with its bearing fit on described collar inwall, when the touched switch of described fuel return hole blocks in closed condition, described touching switch coordinates with its top flange butt when inner carrier moves upward to the setting stroke, thereby move on respect to the collar under the promotion of inner carrier, make the fuel return hole on the ring wall of collar middle part be transformed into open mode, and then the first fluid chamber is communicated with the 4th fluid chamber by fuel return hole.
Further, described touching switch is big up and small down, the toroidal ring structure of intermediate step transition, comprise top ring, adapter ring platform and bottom ring, described top ring be arranged on collar inwall seam below and with its bearing fit, thereby controlling fuel return hole closes or opens, the bottom flange of described bottom ring can coordinate with inner carrier top flange butt, on described adapter ring platform, is provided with return opening.
As three of preferred version, described carrying top cover is down cup-shaped, the top profile that described outer piston stretches out outside outer cylinder body is frustum, it is rotational-like that described rubber bearing spring is the hollow that cross-sectional plane is rhombus, its upper outside surface of revolution is combined as a whole with the cup inwall sulfuration of falling of carrying top cover, and the top male cone (strobilus masculinus) sulfuration of the inboard surface of revolution in its underpart and outer piston is combined as a whole.
Workflow and the principle of the utility model bogie truck medi-spring amount of deflection automatic regulating apparatus when body oscillating is as follows:
1, when car body vibrates downwards, under it, the power of shaking is delivered to bogie truck truck center plate place, by bolster, bogie side frame, forms, and under this, the power of shaking is transmitted to the carrying top cover;
2, be subject under this to shake the power effect, rubber bearing spring compressive deformation, the carrying top cover descends, and drives pull bar and moves downward, and because pull bar is incompressible, pull bar promotes inner carrier and moves downward;
3, the second fluid chamber due to the inner carrier bottom is full of hydraulic oil, and hydraulic oil is incompressible, and now hydraulic oil flows in the 3rd fluid chamber of outer piston bottom by the second check valve;
4, the hydraulic oil that flows to the 3rd fluid chamber also has incompressibility, therefore promotes the outer piston upward movement;
5,, during the outer piston upward movement, the rubber bearing spring be connected as a single entity with it and carrying top cover be upward movement also;
6, when car body upwards vibrates, the carrying top cover under the antagonistic force of rubber bearing spring also along with upward movement;
While 7, carrying the top cover upward movement, drive also upward movement of pull bar, and then drive also upward movement of inner carrier;
8, because the second fluid chamber is sealing relatively, the inner carrier upward movement causes the second fluid chamber to form parital vacuum, cause the first one-way valve opens, hydraulic oil flows to the second fluid chamber from first fluid chamber at inner carrier top, the second fluid chamber is full of hydraulic oil again, and, due to the restriction of the second check valve, the hydraulic oil in the 3rd fluid chamber can't flow back to the second fluid chamber;
9, when car body vibrates downwards again, the hydraulic oil in the second fluid chamber flows to the 3rd fluid chamber again, and outer piston again rises under the effect of hydraulic oil, and the carrying top cover also rises again;
10, in the continual up-down vibration circulation of car body, the carrying top cover continues to rise, until reach the height that design needs, now inner carrier has also arrived the position of setting;
11, after inner carrier arrives desired location, when inner carrier continues upward movement, inner carrier triggers the circuit switching device, make it in open mode, now the first fluid chamber is communicated with the 4th fluid chamber, and the hydraulic oil in the 3rd fluid chamber flows back to the first fluid chamber by the 4th fluid chamber, so just can guarantee that outer piston no longer rises, the carrying top cover also no longer rises, and inner carrier and carrying top cover are in the dynamical equilibrium position;
Under setting complete vehicle curb condition and during dynamical equilibrium position in sustained height, the inner carrier bottom surface of loaded vehicle state lower spring amount of deflection automatic regulating apparatus, just can be in the situation that do not consider that wheel wear realizes that the empty and load truck center plate is contour.
The utility model has the advantage of: designed camber of spring automatic regulating apparatus mainly plays two effects in bogie truck: the one, as the primary spring of bogie truck---the axle box bearing spring; The 2nd, as the truck center plate automatic height regulating device on bogie truck.Pay-as-you-go operation by the camber of spring automatic regulating apparatus in car body operational shock process, the truck center plate face that can substantially maintain empty wagons and loaded vehicle is in sustained height (except wheel wear difference) always, connect a difficult problem of hanging diff-H thereby effectively solve hitch, provide necessary condition for increasing bogie truck spring work amount of deflection simultaneously.Like this, can reduce two peak values that between wheel track, dynamic force exists, be vertical high frequency power P1 value and vertical low frequency power P2 value, thereby significantly reduce the vertical acceleration of vehicle, effectively improve the stationarity of vehicle, reduce vibration, impact, fatigue and the damage of vehicle and track circuit system, extend the service life of vehicle and track.
The accompanying drawing explanation
Fig. 1 is that a kind of railway vehicle axle box suspension type is from the main TV structure schematic diagram of heightening bogie truck.
The plan structure schematic diagram that Fig. 2 is Fig. 1.
The structural representation that Fig. 3 is the first camber of spring automatic regulating apparatus.
Fig. 4 is circuit switching device local structure for amplifying schematic diagram in off position in the first camber of spring automatic regulating apparatus.
Fig. 5 be in the first camber of spring automatic regulating apparatus the circuit switching device at the local structure for amplifying schematic diagram of open mode.
Fig. 6 touches the detailed mark structure for amplifying schematic diagram of switch in the circuit switching device shown in Fig. 4 or Fig. 5.
The structural representation that Fig. 7 is the second camber of spring automatic regulating apparatus.
Fig. 8 is circuit switching device local structure for amplifying schematic diagram in off position in the second camber of spring automatic regulating apparatus.
Fig. 9 be in the second camber of spring automatic regulating apparatus the circuit switching device at the local structure for amplifying schematic diagram of open mode.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Railway vehicle axle box suspension type as shown in Figure 1 and 2 is from heightening bogie truck, comprise that wheel shaft forms 15, bogie side frame forms 12, bolster 13, central authorities' bearing spring 19, and corresponding foundation brake rigging 16, the two ends drawing strickle guide of bogie side frame composition 12 is carried on wheel shaft by axle box bearing 14 and forms on 15, the two ends of bolster 13 are carried on the central square frame of bogie side frame composition 12 by central bearing spring 19, above bolster 13, center and both sides are respectively arranged with truck center plate 17 and bottom side bearing 18, between the two ends drawing strickle guide of bogie side frame composition 12 and axle box bearing 14, camber of spring automatic regulating apparatus 11 is installed, camber of spring automatic regulating apparatus 11 capable of choosing multiple versions, below specifically introduce two kinds.
The first camber of spring automatic regulating apparatus 11 as shown in Fig. 3 ~ 6, outer cylinder body 9 with the mounting seat of doubling as, be provided with outer piston 5 in outer cylinder body 9, outer piston 5 is cavity structure, and outer cylinder body 9 is stretched out at outer piston 5 tops and rotational-like rubber bearing spring 3 is connected as a single entity with carrying top cover 1 by hollow.In the present embodiment, carrying top cover 1 is down cup-shaped, the top profile that outer piston 5 stretches out outside outer cylinder body 9 is frustum, it is rotational-like that rubber bearing spring 3 is the hollow that cross-sectional plane is rhombus, its upper outside surface of revolution is combined as a whole with the cup inwall sulfuration of falling of carrying top cover 1, and the top male cone (strobilus masculinus) sulfuration of the inboard surface of revolution in its underpart and outer piston 5 is combined as a whole.Like this, it is simple and practical, connects safe and reliablely, and the stability under loading equilibrium, can bring into play the advantage of rubber bearing spring to greatest extent.
Also coaxially be fixed with inner cylinder body 10 in outer cylinder body 9, inner cylinder body 10 is embedded in the cavity of outer piston 5 and its free-running fit, be provided with inner carrier 6 in inner cylinder body 10, inner carrier 6 tops are connected with an end of pull bar 2, and the other end of pull bar 2 stretches out outer piston 5 and is connected with carrying top cover 1 is inboard.
Be provided with control hydraulic oil in inner carrier 6 axially extending bores and flow to the first check valve 8 of the second fluid chamber B from the first fluid chamber A, be provided with control hydraulic oil in inner cylinder body 10 bottom sidewall through holes and flow to the second check valve 7 of the 3rd fluid chamber C from the second fluid chamber B, inner cylinder body 10 tops are provided with circuit switching device 4, the four fluid chamber D lower ends of controlling the first fluid chamber A and the 4th fluid chamber D upper end break-make and directly are communicated with the 3rd fluid chamber C.
In the present embodiment, above-mentioned circuit switching device 4 comprises can be along the axially movable collar 4a of outer piston 5 cavity inner wall, be provided with fuel return hole 4b on the ring wall of collar 4a bottom, the top seam is nested is closed condition while coordinating at collar 4a bottom ring wall and inner cylinder body 10 for fuel return hole 4b.Be provided with the seal ring 4c that cuts off the first fluid chamber A and the 4th fluid chamber D between collar 4a outer wall and outer piston 5 cavity inner walls.Be provided with touching switch 4d on collar 4a inwall.Particularly, touching switch 4d is big up and small down, the toroidal ring structure of intermediate step transition, and it is mainly by top ring 4d
1, adapter ring platform 4d
2With bottom ring 4d
3Form top ring 4d
1Be arranged on collar 4a inwall seam below and with its bearing fit, bottom ring 4d
3The bottom flange can coordinate with inner carrier 6 top flange butts, adapter ring platform 4d
2On be provided with return opening 4d
4.When touching switch 4d when inner carrier 6 moves upward to the setting stroke, its underpart ring 4d
3Contact with inner carrier 6 top flange, move thereby drive on collar 4a, and make the fuel return hole 4b on the ring wall of collar 4a bottom be transformed into open mode, and then the first fluid chamber A is communicated with the 4th fluid chamber D by fuel return hole 4b.
Above-mentioned the first camber of spring automatic regulating apparatus is to regulate like this bogie truck height when the car body operational shock:
1, when car body vibrates downwards, the power of shaking under it F is delivered to bogie truck truck center plate 17 places, by bolster 13, bogie side frame, forms 12, and the power of shaking under this F is transmitted to carrying top cover 1;
2, be subject under this power F effect of shaking, rubber bearing spring 3 compressive deformations, carrying top cover 1 descends, and drives pull bar 2 and moves downward, and because pull bar 2 is incompressible, pull bar 2 promotes inner carrier 6 and moves downward;
3, the second fluid chamber B due to inner carrier 6 bottoms is full of hydraulic oil, and hydraulic oil is incompressible, and now hydraulic oil flows in the 3rd fluid chamber C of outer piston 5 bottoms by the second check valve 7;
4, the hydraulic oil that flows to the 3rd fluid chamber C also has incompressibility, therefore promotes outer piston 5 upward movements;
5,, during outer piston 5 upward movement, the rubber bearing spring 3 be connected as a single entity with it and carrying top cover 1 be upward movement also;
6, when car body upwards vibrates, the carrying top cover 1 under the antagonistic force of rubber bearing spring 3 also along with upward movement;
While 7, carrying top cover 1 upward movement, drive also upward movement of pull bar 2, and then drive also upward movement of inner carrier 6;
8, because the second fluid chamber B is sealing relatively, inner carrier 6 upward movements cause the second fluid chamber B to form parital vacuum, cause the first check valve 8 to be opened, hydraulic oil flows to the second fluid chamber B from the first fluid chamber A at inner carrier 6 tops, the second fluid chamber B is full of hydraulic oil again, and, due to the restriction of the second check valve 7, the hydraulic oil in the 3rd fluid chamber C can't flow back into the second fluid chamber B;
9, when car body vibrates downwards again, the hydraulic oil in the second fluid chamber B flows to the 3rd fluid chamber C again, and outer piston 5 again rises under the effect of hydraulic oil, and carrying top cover 1 also rises again;
10, in the continual up-down vibration circulation of car body, carrying top cover 1 continues to rise, until reach the height that design needs, now inner carrier 6 has also arrived the position of setting;
11,, after inner carrier 6 arrives desired location, when inner carrier 6 continues upward movement, the top flange of inner carrier 6 is connected to the bottom ring 4d of touching switch 4d
3Upper, drive the top ring 4d that touches switch 4d
1Along collar 4a inwall upward sliding; As top ring 4d
1While sliding into the inwall seam that withstands collar 4a, continue upwards can drive collar 4a bottom ring wall and inner cylinder body 10 top seams to break away from, make fuel return hole 4b be transformed into open mode, now the first fluid chamber A is successively by the adapter ring platform 4d of touching switch 4d
2On return opening 4d
4, the fuel return hole 4b on the ring wall of collar 4a bottom is communicated with the 4th fluid chamber D, hydraulic oil in the 3rd fluid chamber C can flow back in the first fluid chamber A by the 4th fluid chamber D, so just can guarantee that outer piston 5 no longer rises, carrying top cover 1 also no longer rises, and inner carrier 6 and carrying top cover 1 are in the dynamical equilibrium position;
Under setting complete vehicle curb condition and inner carrier 6 bottom surfaces of loaded vehicle state lower spring amount of deflection automatic regulating apparatus 11 when the H of the dynamical equilibrium position of sustained height, just can be in the situation that do not consider that wheel wear realizes that empty and load truck center plate 17 is contour.
The second camber of spring automatic regulating apparatus 11 as shown in Fig. 7 ~ 9, equal identical with in above-mentioned the first of each main element structure wherein, just formation and the principle of work of circuit switching device 4 are slightly had any different.In this embodiment, circuit switching device 4 comprises the collar 4a with outer piston 5 cavity inner wall free-running fits, the top seam is nested is tightly connected for collar 4a bottom ring wall and inner cylinder body 10, be provided with fuel return hole 4b on the ring wall of collar 4a middle part, be provided with the seal ring 4c that cuts off the first fluid chamber A and the 4th fluid chamber D between collar 4a outer wall top and outer piston 5 cavity inner walls, be provided with the touching switch 4d with its bearing fit on collar 4a inwall.Particularly, this touching switch 4d is the toroidal ring structure of big up and small down, intermediate step transition also, comprises top ring 4d
1, adapter ring platform 4d
2With bottom ring 4d
3, top ring 4d
1Be arranged on collar 4a inwall seam below and with its bearing fit, close or open for controlling fuel return hole 4b, bottom ring 4d
3The bottom flange can coordinate with inner carrier 6 top flange butts, adapter ring platform 4d
2On be provided with return opening 4d
4.The top ring 4d of the touched switch 4d of fuel return hole 4b
1While blocking in closed condition, when touching switch 4d moves upward to while setting stroke at inner carrier 6, its underpart ring 4d
3Contact with inner carrier 6 top flange, thereby drive top ring 4d
1On move, and make the fuel return hole 4b on the ring wall of collar 4a middle part be transformed into open mode, and then the first fluid chamber A be communicated with the 4th fluid chamber D by fuel return hole 4b.
The principle of work of above-mentioned the second camber of spring automatic regulating apparatus is also basic identical with the first, in this, repeats no more.
From above-mentioned two kinds of embodiment, can find out, the utility model has solved insurmountable two hang-ups of the traditional railway bogie of car:
One, due to the height that adopts camber of spring automatic regulating apparatus regulation and control truck center plate, efficiently solve the problem of conventional bogie bearing spring because being subject to sky, the restriction of loaded vehicle hitch diff-H can't accomplish high camber, can make the work amount of deflection of bogie of car bearing spring bring up to 80 ~ 100mm.Bearing spring on bogie truck is one of key components and parts of vehicle smooth running, camber of spring is larger, the vertical dynamics performance of vehicle is better, wheel is less to the impact to track, the abrasion of wheel track are less, the life-span of the key components and parts such as bolster, bogie side frame is longer, and the goods infringement that vehicle is filled is less.Like this, maintenance workload and the expense of vehicle and track can be reduced significantly, also the loss that Damageable Cargo causes in transportation can be significantly reduced.
They are two years old, can realize that owing to adopting the camber of spring automatic regulating apparatus truck center plate of sky, loaded vehicle is contour, empty wagons and loaded vehicle connect while hanging like this, hitch between two cars can be on same level in theory, make between coupler knuckle for car coupler stressed even, thereby reduced greatly the generation of hitch fracture, guaranteed traffic safety, reduced the operation maintenance expense, especially heavy-duty freight car has been of great importance.
Finally should be noted that, the above specific embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although with reference to preferred embodiment, the utility model is had been described in detail, but those of ordinary skills are to be understood that, the technical solution of the utility model is carried out simple modification or is equal to replacement, for example adopt the hydraulic efficiency pressure switch device, electronic control switch, the numerical control switch device substitutes the circuit switching device in the utility model, perhaps adopt the pepe installation that is connected to its break-make of control between the first fluid chamber and the 3rd fluid chamber to substitute the circuit switching device in the utility model, these all can not break away from the spirit and scope of technical solutions of the utility model, and all should be encompassed among the protection domain of the utility model claim.
Claims (6)
1. a railway vehicle axle box suspension type is from heightening bogie truck, comprise that wheel shaft forms (15), bogie side frame forms (12), bolster (13), central authorities' bearing spring (19), and corresponding foundation brake rigging (16), the two ends drawing strickle guide that described bogie side frame forms (12) is carried on described wheel shaft composition (15) by axle box bearing (14), the two ends of described bolster (13) are carried on the central square frame of described bogie side frame composition (12) by described central bearing spring (19), above described bolster (13), center and both sides are respectively arranged with truck center plate (17) and bottom side bearing (18), it is characterized in that:
Be provided with camber of spring automatic regulating apparatus (11) between the two ends drawing strickle guide of described bogie side frame composition (12) and described axle box bearing (14), described camber of spring automatic regulating apparatus (11) has the outer cylinder body (9) of the mounting seat of doubling as, be provided with outer piston (5) in described outer cylinder body (9), described outer piston (5) is cavity structure, and outer cylinder body (9) is stretched out at described outer piston (5) top and rotational-like rubber bearing spring (3) is connected as a single entity with carrying top cover (1) by hollow;
Also coaxially be fixed with inner cylinder body (10) in described outer cylinder body (9), described inner cylinder body (10) is embedded in the cavity of outer piston (5) and its free-running fit, be provided with inner carrier (6) in described inner cylinder body (10), described inner carrier (6) top is connected with an end of pull bar (2), and the other end of described pull bar (2) stretches out outer piston (5) and is connected with carrying top cover (1) is inboard;
Described inner carrier (6) top forms the first fluid chamber (A) to carrying the inboard space of top cover (1), described inner carrier (6) bottom to the space of inner cylinder body (10) bottom forms the second fluid chamber (B), described outer piston (5) bottom forms the 3rd fluid chamber (C) to the annulus of outer cylinder body (9) bottom, and described outer piston (5) cavity inner wall to the annular gap of inner cylinder body (10) outer wall forms the 4th fluid chamber (D);
Be provided with control hydraulic oil in described inner carrier (6) axially extending bore and flow to first check valve (8) of the second fluid chamber (B) from the first fluid chamber (A), be provided with control hydraulic oil in the sidewall through hole of described inner cylinder body (10) bottom and flow to second check valve (7) of the 3rd fluid chamber (C) from the second fluid chamber (B), described inner cylinder body (10) top is provided with the circuit switching device (4) of controlling the first fluid chamber (A) and the 4th fluid chamber (D) upper end break-make, described the 4th fluid chamber (D) lower end directly is communicated with the 3rd fluid chamber (C).
2. railway vehicle axle box suspension type according to claim 1 is from heightening bogie truck, it is characterized in that: described circuit switching device (4) comprises can be along the axially movable collar of outer piston (5) cavity inner wall (4a), be provided with fuel return hole (4b) on the ring wall of the described collar (4a) bottom, described fuel return hole (4b) is closed condition at the collar (4a) bottom ring wall with inner cylinder body (10) top seam during nested the cooperation, be provided with the seal ring (4c) that cuts off the first fluid chamber (A) and the 4th fluid chamber (D) between the described collar (4a) outer wall and outer piston (5) cavity inner wall, be provided with touching switch (4d) on the described collar (4a) inwall, described touching switch (4d) coordinates with its top flange butt when inner carrier (6) moves upward to the setting stroke, move and make the fuel return hole (4b) on its bottom ring wall be transformed into open mode thereby drive on the collar (4a), and then the first fluid chamber (A) is communicated with the 4th fluid chamber (D) by fuel return hole (4b).
3. railway vehicle axle box suspension type according to claim 2 is from heightening bogie truck, and it is characterized in that: described touching switch (4d) is big up and small down, the toroidal ring structure of intermediate step transition, comprises top ring (4d
1), adapter ring platform (4d
2) and bottom ring (4d
3), described top ring (4d
1) be arranged on the collar (4a) inwall seam below and with its bearing fit, described bottom ring (4d
3) the bottom flange can coordinate with inner carrier (6) top flange butt, described adapter ring platform (4d
2) on be provided with return opening (4d
4).
4. railway vehicle axle box suspension type according to claim 1 is from heightening bogie truck, it is characterized in that: described circuit switching device (4) comprises the collar (4a) with outer piston (5) cavity inner wall free-running fit, the described collar (4a) bottom ring wall and nested being tightly connected of inner cylinder body (10) top seam, be provided with fuel return hole (4b) on the ring wall of the described collar (4a) middle part, be provided with the seal ring (4c) that cuts off the first fluid chamber (A) and the 4th fluid chamber (D) between the described collar (4a) outer wall top and outer piston (5) cavity inner wall, be provided with the touching switch (4d) with its bearing fit on the described collar (4a) inwall, the touched switch of described fuel return hole (4b) (4d) while blocking in closed condition, described touching switch (4d) coordinates with its top flange butt when inner carrier (6) moves upward to the setting stroke, thereby under the promotion of inner carrier (6) with respect to moving on the collar (4a), make the fuel return hole (4b) on the ring wall of the collar (4a) middle part be transformed into open mode, and then the first fluid chamber (A) is communicated with the 4th fluid chamber (D) by fuel return hole (4b).
5. railway vehicle axle box suspension type according to claim 4 is from heightening bogie truck, and it is characterized in that: described touching switch (4d) is big up and small down, the toroidal ring structure of intermediate step transition, comprises top ring (4d
1), adapter ring platform (4d
2) and bottom ring (4d
3), described top ring (4d
1) be arranged on the collar (4a) inwall seam below and with its bearing fit, close or open, described bottom ring (4d thereby control fuel return hole (4b)
3) the bottom flange can coordinate with inner carrier (6) top flange butt, described adapter ring platform (4d
2) on be provided with return opening (4d
4).
6. certainly heighten bogie truck according to the described railway vehicle axle box suspension type of any one in claim 1 to 5, it is characterized in that: described carrying top cover (1) is down cup-shaped, the top profile that described outer piston (5) stretches out outside outer cylinder body (9) is frustum, it is rotational-like that described rubber bearing spring (3) is the hollow that cross-sectional plane is rhombus, its upper outside surface of revolution is combined as a whole with the cup inwall sulfuration of falling of carrying top cover (1), and the top male cone (strobilus masculinus) sulfuration of the inboard surface of revolution in its underpart and outer piston (5) is combined as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202730029U CN203318431U (en) | 2013-05-20 | 2013-05-20 | Axial box suspension-type height-self-adjusting bogie of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202730029U CN203318431U (en) | 2013-05-20 | 2013-05-20 | Axial box suspension-type height-self-adjusting bogie of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203318431U true CN203318431U (en) | 2013-12-04 |
Family
ID=49657804
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202730029U Withdrawn - After Issue CN203318431U (en) | 2013-05-20 | 2013-05-20 | Axial box suspension-type height-self-adjusting bogie of railway vehicle |
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| Country | Link |
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| CN (1) | CN203318431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253284A (en) * | 2013-05-20 | 2013-08-21 | 南车长江车辆有限公司 | Railway vehicle shaft box suspension type self-height-adjusting bogie |
-
2013
- 2013-05-20 CN CN2013202730029U patent/CN203318431U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253284A (en) * | 2013-05-20 | 2013-08-21 | 南车长江车辆有限公司 | Railway vehicle shaft box suspension type self-height-adjusting bogie |
| CN103253284B (en) * | 2013-05-20 | 2015-08-12 | 南车长江车辆有限公司 | Railway vehicle shaft box suspension type self-height-adjustinbogie bogie |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20150812 |
|
| RGAV | Abandon patent right to avoid regrant |