CN205916146U - Railway vehicular hydraulic formula is from heightening bogie - Google Patents

Abstract

The utility model discloses a railway vehicular hydraulic formula is from heightening bogie, being provided the axle box of every group wheel pair both sides, the side bearer on homonymy two axle box upper portion, truck bloster, the symmetry between the side bearer of both sides of being provided of being provided including two sets of wheel pairs, symmetry and being provided elasticity side bearing and basic brake unit on the truck bloster, on the lower chord of side bearer was located in by swing mechanism respectively in the both ends of truck bloster, truck bloster center department was provided with down the cartridge, basic brake unit hangs on the cantilever beam of truck bloster through the braking jib, every be provided with the loading spring between the middle part of axle box and the drawing strickle guide of side bearer, the both sides of loading the spring are provided with from the height -regulating device respectively. The utility model discloses a setting up between axle box and side bearer and heightening vehicle reconditioning height from the height -regulating device, messenger empty and load cartridge is high to keep unanimous basically, both can avoid can increasing suspension spring's work amount of deflection again because of the coupling discrepancy in elevation between empty and load results in coupling fracture hidden danger.

Description

Rolling stock fluid pressure type heightens bogie certainly

Technical field

This utility model is related to bogies for railway vehicles, certainly heightens bogie in particular to a kind of rolling stock fluid pressure type.

Background technology

With the continuous improvement of railway freight-car axle weight and overall trip speed, the utilization operating mode of railway goods train bogie is more multiple Miscellaneous.The impulsive force that railway freight-car operationally produces mainly is delivered on rail by bogie, in order to relax impact, reduce wheel Dynamic deformation from motion between rail, can increase rubber spring or cylinder between truck journal box and side frame, between side frame and bolster Steel spring, can effectively be reduced the vertical dynamic deformation from motion of vehicle, improve bogie kinetics by the work amount of deflection increasing spring Performance.

In prior art, the bogie of height automatic regulating apparatus includes following structure:

(1) with regard to the bogie of air spring height automatic regulating apparatus: number of patent application is 201480034889.3 Patent of invention discloses a kind of railcar bogie, the both sides configuration air bullet on the vehicle-width direction of bogie frame Spring, and be provided with for keeping bodywork height to be constant automatic leveling device in each air spring.Automatic height adjusts The height detection position of device is set as being located at from the axis of air spring to the axis of axle spring, outlet can be improved bent Line interval by performance, reduce particularly with low speed in exporting easement curve and be interval during traveling the outer rail side wheel of front axle subtract again Carry.Number of patent application is that 02248496.5 utility model patent discloses a kind of Railway Vehicle Air Spring automatic height and adjusts Whole valve, is related to configuration in railroad truck air spring relevant control technology, it is mentioned that by the charge and discharge for air spring Gas come to adjust rail truck cartridge height.

However, the bogie of air spring height automatic regulating apparatus, there is very strong limitation, be only limitted to be mounted with sky The rail truck of gas spring, for the rail truck not having air spring, especially railway freight-car it is impossible to realize cartridge height Adjust automatically.

(2) with regard to the bogie of frame for movement height automatic regulating apparatus: number of patent application is real for 201480034889.3 It is that 201510551604.x utility model is special with " a kind of railway freight-car is from height-regulating device ", number of patent application disclosed in new patent Profit disclosed " railway freight-car heightens bogie certainly ", using the kinetic energy of bogie up-down vibration, special by the self-locking of installation Property realize in supporting plate one-way movement, reach adjustment cartridge height purpose.

(3) with regard to the bogie of hydraulic structure height automatic regulating apparatus: number of patent application is that 201310186108.x is real With " Railway vehicle bogie center disk automatic height ", number of patent application disclosed in new patent it is 201310185296.4 utility model patent disclosed " railway vehicle shaft box suspension type self-height-adjustinbogie bogie ", number of patent application are 201310186106.0 utility model patent is disclosed " Railway vehicle bogie center disk automatic height ", mainly by interior Outer cylinder body, interior outer piston, push-pull bar, rubber bearing spring and carrying top cover composition, it is internally formed four airtight hydraulic fluid chambers. This device utilizes the kinetic energy of bogie up-down vibration, by the directed movement of the control realization hydraulic oil of check valve, thus lifting Carry top cover, reach the purpose of adjustment cartridge height.

However, the bogie of existing frame for movement and hydraulic structure height automatic regulating apparatus is because being limited to hitch height Restriction, turn to built on stilts, loaded vehicle spring works amount of deflection and can not differ too big, the work amount of deflection leading to spring less it is impossible to effectively Ground reduces the dynamic deformation from motion between wheel track.Further, since there is hitch difference in height between sky, loaded vehicle, hitch unbalance stress, easily make Become hitch fracture accident, seriously jeopardize traffic safety.

Content of the invention

The purpose of this utility model seeks to provide a kind of rolling stock fluid pressure type from heightening bogie, and this bogie passes through Set up between axle box and side frame from height-regulating device, vehicle loaded vehicle height can be heightened, so that sky, loaded vehicle cartridge is highly substantially kept Unanimously, both can avoid because between empty and load the hitch discrepancy in elevation and lead to hitch fracture hidden danger, the work that again can increase pendulum spring scratches Degree, thus relaxing the impact between wheel track, the dynamic performance improving wheel rail relation, bogie being greatly improved, reduces maintenance cost.

For achieving the above object, the rolling stock fluid pressure type designed by this utility model heightens bogie, certainly including two groups Wheel to, be symmetricly set on every group of wheel to the axle box of both sides, be arranged on the side frame on two axle box tops of homonymy, be arranged on the side of both sides Bolster between frame, the elastic side bearing being symmetricly set on bolster and brake rigging, pendulum is passed through at the two ends of bolster respectively Motivation structure is located on the lower boom of side frame, and bolster center is provided with center bearing, and described brake rigging passes through brake hanging Bar is hung on the cantilever beam of bolster, is provided with loading spring between the middle part of each described axle box and the drawing strickle guide of side frame, described The both sides of loading spring are respectively arranged with from height-regulating device, and each described bottom of device of certainly heightening inserts the bottom with axle box in axle box End face is fixedly connected, and the described top from height-regulating device embeds the rubber spring bottom peace on side frame guide with its mating shapes In tankage, and it is connected with the drawing strickle guide of side frame by rubber spring.

Further, described include the pedestal of tubular, be arranged on pedestal top and can glide along along its inwall from height-regulating device The top cover of dynamic hollow structure, the inwall of described pedestal is fitted with the outer wall of top cover and is formed the accommodating chamber of sealing；Described accommodating chamber Inside it is provided with the single-piece piston with the vertically arranged rod-like structure in base bottom face, the periphery of described single-piece piston is provided with is slided with it The plunger body of cooperation, the top of described plunger body and bottom are respectively equipped with the top cover labyrinth matching with single-piece piston and lower sealing Lid, described plunger body top also upwardly extends formation annular boss, and described annular boss moves upward to during setting stroke and top The annular concave platform of cover cavity abuts cooperation, and being provided between described plunger body and pedestal can be along heightening that plunger body outer wall slides up and down Cylinder body；

The bottom center of described pedestal is provided with stepped mounting seat, and the post of described single-piece piston embeds to be installed It is secured in seat connect, the body of rod upper end of described single-piece piston is provided with for carrying out spacing elasticity to plunger body axial stroke Position-limit mechanism, is provided with the annular flange flange of outwardly convex in the middle part of the body of rod of described single-piece piston；Described heighten cylinder base and pedestal It is provided with inner spring and outer spring between bottom；

The described cavity heightened between cylinder upper end face and top cover inwall is connected with the internal cavity of plunger body top annular boss Logical formation the first hydraulic fluid chamber, described annular boss bottom forms the second hydraulic fluid chamber, institute to the space heightening cylinder body inner face State and enclose between the outer wall of single-piece piston, the annular flange flange upper surface of the inwall of plunger body, top cover labyrinth and single-piece piston Annular space form the 3rd hydraulic fluid chamber, the outer wall of described single-piece piston, the inwall of plunger body, lower sealing cover and overall The annular space that encloses between the annular flange flange lower surface of piston forms the 4th hydraulic fluid chamber, described heightens cylinder body bottom face extremely The space of base bottom forms the 5th hydraulic fluid chamber.

Further, described plunger body also includes being arranged on annular boss bottom and its integrally formed plunger body, sets The lower flange put the upper flange in plunger body upper surface and be arranged on plunger body lower surface；

It is provided with a chamber first passage, a chamber second channel and a chamber connecting with the first hydraulic fluid chamber in described plunger body C chamber first passage and c chamber that the b chamber first passage that triple channel is connected with the second hydraulic fluid chamber is connected with the 3rd hydraulic fluid chamber D chamber first passage that two passages are connected with the 4th hydraulic fluid chamber and the e chamber that d chamber second channel is connected with the 5th hydraulic fluid chamber One passage and e chamber second channel；

Described a chamber first passage and the first passage insertion of e chamber, described c chamber second channel, d chamber second channel and e chamber Be mutually communicated between second channel, described d chamber first passage, a chamber third channel, c chamber first passage, b chamber first passage and It is mutually communicated between the second channel of a chamber.As such, it is possible to control hydraulic oil in five hydraulic pressure using liquid Incoercibility principle Directed flow in oil pocket, hydraulic oil is extruded and flows in the second hydraulic fluid chamber so that plunger body and the vertical distance heightening cylinder body Increase, thus lifting plunger body, promote top cover up, realize automatic adjustment height.

Further, be provided with the second channel of described a chamber control hydraulic oil from the first hydraulic fluid chamber flow out first unidirectional Valve, is provided with the second check valve controlling hydraulic oil to flow out from the first hydraulic fluid chamber in the third channel of described a chamber；Described c chamber first It is provided with the 3rd check valve controlling hydraulic oil to flow out from the 3rd hydraulic fluid chamber in passage, in the second channel of described c chamber, be provided with control Hydraulic oil flows into the 4th check valve of the 3rd hydraulic fluid chamber；It is provided with control hydraulic oil from the 4th hydraulic pressure in the first passage of described d chamber The 5th check valve that oil pocket flows out, is provided with control hydraulic oil to flow into the 4th hydraulic fluid chamber the 6th single in the second channel of described d chamber To valve.As such, it is possible to control the one-way flow of hydraulic oil by using check valve, thus controlling hydraulic oil in five hydraulic oil Directed flow in chamber, realizes automatically adjusting of vertical height.

Further, it is provided with the first gag lever post for changing the first check valve opening direction in the second channel of described a chamber, It is provided with the second gag lever post for changing the second check valve opening direction in the third channel of described a chamber；Described first gag lever post and Second gag lever post is all abutted with elastic spacing mechanism when moving upward to setting stroke.So, by the first gag lever post and second Gag lever post acts on the first check valve and the second check valve, thus it is possible to vary the opening direction of the first check valve and the second check valve, Thus realizing the first check valve and the two-way flow of the second check valve.

Yet further, described elastic spacing mechanism includes being set on the single-piece piston body of rod upper elastic spacing set, set Put the lower elastic spacing set being in contact with it connection below upper elastic spacing set and be arranged on elastic spacing set and lower elasticity The limit spring in groove that stop collar encloses, be provided with below described lower elastic spacing set can be used for the first gag lever post, the The annular stop seat that two gag lever posts abut against.

Further, described upper flange is fixedly connected by screw assembly with the upper surface of plunger body；Described purgation Orchid is fixedly connected by screw assembly with the lower surface of plunger body.As such, it is possible to improve the sealing of plunger body.

In this utility model, the operation principle from height-regulating device is as follows:

(1) free state: elastic spacing mechanism works, top cover is in deadweight position height, and outer spring carries, inner spring It is in free state, during the upper and lower vibration of vehicle, do not heighten from height-regulating device, provide only damping.

The transmission of power: top cover → plunger body → heighten cylinder body → outer spring → pedestal.

(2) free state is to heavy condition: when being transitioned into heavy condition by free state, elastic spacing mechanism does not act on, Inner spring compresses, and top cover is in lower height.

The transmission of power: top cover → plunger body → heighten cylinder body → outer spring and inner spring → pedestal.

(3) automatic adjustment height state: heightened by heavy condition to the process of free state position, now elastic spacing mechanism Inoperative, no matter vehicle be vibration upwards or downward vibrate, all can be by controlling the directed flow of hydraulic oil by hydraulic oil Extruding flows in the second hydraulic fluid chamber so that plunger body is increased with the vertical distance heightening cylinder body, thus lifting plunger body, promotes Top cover is up, realizes automatic adjustment height.

1) heavy condition, when vehicle vibrates upwards: plunger body moves upwards relative to single-piece piston, leads to the 4th hydraulic oil Chamber, the first hydraulic fluid chamber volume reduce, and the 3rd hydraulic fluid chamber, the 5th hydraulic fluid chamber volume increase, then the 4th hydraulic fluid chamber, the The hydraulic oil of one hydraulic fluid chamber is extruded in inflow the second hydraulic fluid chamber and (is circulated by plunger body internal channel), thus increasing plunger Body and the vertical distance heightening cylinder body, plunger body lifting promotes top cover up.Most of hydraulic oil of the first hydraulic fluid chamber passes through Damp channel flows to the 5th hydraulic fluid chamber, and a part of hydraulic oil of the 5th hydraulic fluid chamber will add in the 3rd hydraulic fluid chamber.

The transmission of power: outer spring and inner spring → heighten cylinder body → hydraulic oil → plunger body → top cover.

2) heavy condition, when vehicle vibrates downwards: plunger body moves downward relative to single-piece piston, leads to the 3rd hydraulic oil Chamber, the 5th hydraulic fluid chamber volume reduce, and the 4th hydraulic fluid chamber, the first hydraulic fluid chamber volume increase, then the 3rd hydraulic fluid chamber Hydraulic oil is extruded in inflow the second hydraulic fluid chamber and (is circulated by plunger body internal channel), thus increasing plunger body and heightening cylinder body Vertical distance, plunger body lifting promote top cover up.The hydraulic oil of the 5th hydraulic fluid chamber flows to the first liquid by damp channel Pumping cavity, another part hydraulic oil of the 5th hydraulic fluid chamber adds in the 4th hydraulic fluid chamber.

The transmission of power: top cover → plunger body → hydraulic oil → heighten cylinder body → outer spring and inner spring → pedestal.

(4) heavy condition is heightened to free state position: when height is heightened to setting position (i.e. free state position), bullet Property position-limit mechanism work, top cover is in free state position height, no longer heightens from height-regulating device, and the flowing of hydraulic oil is pressed freely Condition mode is carried out.

Compared with prior art, this utility model has the advantage that

First, this utility model passes through to set up between axle box and side frame from height-regulating device, vehicle loaded vehicle can be heightened high Degree, so that sky, loaded vehicle cartridge is highly substantially consistent, both can solve because between empty and load the hitch discrepancy in elevation and lead to hitch fracture hidden Suffer from, the work amount of deflection of pendulum spring can be increased again, thus impact can be relaxed, and improve wheel rail relation, bogie dynamic is greatly improved Mechanical property, reduces maintenance cost.

Second, of the present utility model change each hydraulic fluid chamber from height-regulating device using vehicle vertical up-down vibration kinetic energy Volume size, thus using pressure differential drive hydraulic oil directed flow in five hydraulic fluid chambers, by hydraulic oil extrude flow into So that plunger body is increased with the vertical distance heightening cylinder body in second hydraulic fluid chamber, thus lifting plunger body, promote on top cover OK, realize automatically adjusting of vertical height.

Third, the one-way flow controlling hydraulic oil from height-regulating device using check valve of the present utility model, thus controlling Hydraulic oil directed flow in five hydraulic fluid chambers, and then realize automatically adjusting of vertical height.

Fourth, of the present utility model from height-regulating device pass through be provided with plunger body connect with five hydraulic fluid chambers lead to Road is it is achieved that circulation between five hydraulic fluid chambers for the hydraulic oil, it is possible to provide suitable damp, effectively relaxed vertical impact, Improve wheel rail member active force.

Fifth, of the present utility model from height-regulating device amplitude modulation is big, stability is high, can effectively solve the problem that because between empty and load The problem that hitch difference in height causes unbalance stress and ruptures, improves reliability, reduces safety of railway traffic risk, increases transport warp Ji benefit.

Brief description

Fig. 1 is a kind of rolling stock fluid pressure type from the side structure schematic view heightening bogie；

Fig. 2 is the overlooking the structure diagram of Fig. 1；

Fig. 3 is the cross section structure diagram in Fig. 1 from height-regulating device；

Fig. 4 is the mplifying structure schematic diagram of elastic position-limit mechanism in Fig. 3；

Fig. 5 is the cross section structure diagram in Fig. 3 along a-a direction；

Fig. 6 is the deployed configuration schematic diagram in Fig. 5 along b-b direction；

Plunger body internal hydraulic pressure oil flow process schematic diagram when Fig. 7 vibrates upwards for complete vehicle curb condition car body；

Plunger body internal hydraulic pressure oil flow process schematic diagram when Fig. 8 vibrates downwards for complete vehicle curb condition car body；

Plunger body internal hydraulic pressure oil flow process schematic diagram when Fig. 9 vibrates upwards for loaded vehicle state car body；

Plunger body internal hydraulic pressure oil flow process schematic diagram when Figure 10 vibrates downwards for loaded vehicle state car body；

Wherein: pedestal 1, mounting seat 1.1, top cover 2, annular concave platform 2.1, accommodating chamber 3, single-piece piston 4, annular flange flange 4.1, Plunger body 5, annular boss 5.1, plunger body 5.2, upper flange 5.3, lower flange 5.4, heighten cylinder body 6, elastic spacing mechanism 7, Upper elastic spacing set 7.1, lower elastic spacing set 7.2, limit spring 7.3, annular stop seat 7.4, inner spring 8.1, outer spring 8.2nd, top cover labyrinth 9.1, lower sealing cover 9.2, the first check valve 10.1, the second check valve 10.2, the 3rd check valve the 10.3, the 4th Check valve 10.4, the 5th check valve 10.5, the 6th check valve 10.6, the first gag lever post 11.1, the second gag lever post 11.2, wheel are right 12nd, axle box 13, side frame 14, bolster 15, elastic side bearing 16, brake rigging 17, swing mechanism 18, loading spring 19, self-regulated High device 20, rubber spring 21, center bearing 22, the first hydraulic fluid chamber a, the second hydraulic fluid chamber b, the 3rd hydraulic fluid chamber c, the 4th liquid Pumping cavity d, the 5th hydraulic fluid chamber e, a chamber first passage a1, a chamber second channel a2, a chamber third channel a3, b chamber first passage B1, c chamber first passage c1, c chamber second channel c2, d chamber first passage d1, d chamber second channel d2, e chamber first passage e1, e chamber Second channel e2.

Specific embodiment

The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.

Rolling stock fluid pressure type shown in figure from heightening bogie, including two groups of wheels to 12, be symmetricly set on every group of wheel Shaking between the side frame 14 to the axle box 13 of 12 both sides, being arranged on two axle box 13 tops of homonymy, the side frame 14 being arranged on both sides Pillow 15, the elastic side bearing 16 being symmetricly set on bolster 15 and brake rigging 17, pendulum is passed through at the two ends of bolster 15 respectively Motivation structure 18 is located on the lower boom of side frame 14, and bolster 15 center is provided with center bearing 22, and brake rigging 17 passes through Braking suspension rod is hung on the cantilever beam of bolster 15, is provided with loading bullet between the drawing strickle guide of the middle part of each axle box 13 and side frame 14 Spring 19, the both sides of loading spring 19 are respectively arranged with from height-regulating device 20, and each is inserted in axle box 13 from height-regulating device 20 bottom It is fixedly connected with the bottom face of axle box 13, embed the rubber with its mating shapes on side frame 14 drawing strickle guide from the top of height-regulating device 20 In glue spring 21 bottom mounting groove, and it is connected with the drawing strickle guide of side frame 14 by rubber spring 21.Employing can from height-regulating device 20 To meet the requirement that vehicle empty and load hitch difference in height is not more than 50mm, in Axie box support device, one group of loading set up by every axle box Spring 19.When the vehicle is unladen, loading spring 19 is not involved in work, when vehicle switchs to loaded vehicle by empty wagons, loading spring 19 with Bearing spring carries jointly, and described bearing spring is from inner spring 8.1 and the outer spring 8.2 of height-regulating device 20 so that vehicle Empty and load difference in height is not more than 50mm；After vehicle runs, with the vibration of suspension, from the top cover 4 of height-regulating device 20 with hold The vertical distance carrying spring upper end increases, and increases the compression to bearing spring, now acts on the load of loading spring 19 progressively It is transferred to bearing spring, loading spring 19 finally exits carrying, vehicle returns to that (unladen height deducts rubber close to unladen height The empty and load compression of spring 21 is poor)；After vehicle automatic adjustment height reaches specified altitude, no longer heighten from height-regulating device 20 and continue There is provided damping for system.

In technique scheme, include the pedestal 1 of tubular from height-regulating device 20, being arranged on pedestal 1 top can be along its inwall The top cover 2 of the hollow structure sliding up and down, the inwall of pedestal 1 is fitted with the outer wall of top cover 2 and is formed the accommodating chamber 3 of sealing；Accommodate It is provided with the single-piece piston 4 with the vertically arranged rod-like structure of pedestal 1 bottom face, the periphery of single-piece piston 4 is provided with to be slided with it in chamber 3 The plunger body 5 of dynamic cooperation, the top of described plunger body 5 and bottom are respectively equipped with the top cover labyrinth 9.1 matching with single-piece piston 4 With lower sealing cover 9.2, plunger body 5 top also upwardly extends formation annular boss 5.1, and annular boss 5.1 moves upward to setting Cooperation is abutted with the annular concave platform 2.1 of top cover 2 inner chamber, being provided between plunger body 5 and pedestal 1 can be along plunger body 5 outer wall during stroke Slide up and down heightens cylinder body 6；

The bottom center of pedestal 1 is provided with stepped mounting seat 1.1, and the post of single-piece piston 4 embeds mounting seat It is secured in 1.1 connect, the body of rod upper end of single-piece piston 4 is provided with for carrying out spacing elasticity to plunger body 5 axial stroke Position-limit mechanism 7, is provided with the annular flange flange 4.1 of outwardly convex in the middle part of the body of rod of single-piece piston 4；Heighten cylinder body 6 bottom and pedestal 1 bottom It is provided with inner spring 8.1 and outer spring 8.2 between portion；

Heighten the internal cavity of the cavity between cylinder body 6 upper surface and top cover 2 inwall and plunger body 5 top annular boss 5.1 Connection forms the first hydraulic fluid chamber a, and annular boss 5.1 bottom forms the second hydraulic fluid chamber to the space heightening cylinder body 6 inner face B, the outer wall of single-piece piston 4, annular flange flange 4.1 upper surface of the inwall of plunger body 5, top cover labyrinth 9.1 and single-piece piston 4 Between the annular space that encloses form the 3rd hydraulic fluid chamber c, the outer wall of single-piece piston 4, the inwall of plunger body 5, lower sealing cover 9.2 and single-piece piston 4 annular flange flange 4.1 lower surface between the annular space that encloses form the 4th hydraulic fluid chamber d, adjust High cylinder body 6 bottom face forms the 5th hydraulic fluid chamber e to the space of pedestal 1 bottom.

In technique scheme, plunger body 5 also includes-is arranged on annular boss 5.1 bottom and its integrally formed plunger Body 5.2, the upper flange 5.3 being arranged on plunger body 5.2 upper surface and the purgation being arranged on plunger body 5.2 lower surface Blue 5.4；Upper flange 5.3 is fixedly connected by screw assembly with the upper surface of plunger body 5.2；Lower flange 5.4 and plunger body 5.2 lower surface is fixedly connected by screw assembly.

It is provided with a chamber first passage a1, a chamber second channel a2 and a connecting with the first hydraulic fluid chamber a in plunger body 5.2 The c chamber first that the b chamber first passage b1 that chamber third channel a3 is connected with the second hydraulic fluid chamber b is connected with the 3rd hydraulic fluid chamber c D chamber first passage d1 and d chamber second channel d2 and that passage c1 is connected with the 4th hydraulic fluid chamber d with c chamber second channel c2 The e chamber first passage e1 and e chamber second channel e2 of five hydraulic fluid chamber e connections；

A chamber first passage a1 and the first passage e1 insertion of e chamber, c chamber second channel c2, d chamber second channel d2 and e chamber It is mutually communicated between second channel e2, d chamber first passage d1, a chamber third channel a3, c chamber first passage c1, b chamber first passage It is mutually communicated between the second channel a2 of b1 and a chamber.

In technique scheme, be provided with the second channel a2 of a chamber control hydraulic oil flow out from the first hydraulic fluid chamber a first Check valve 10.1, is provided with the second check valve 10.2 controlling hydraulic oil to flow out from the first hydraulic fluid chamber a in the third channel a3 of a chamber；c It is provided with the 3rd check valve 10.3 controlling hydraulic oil to flow out, c chamber second channel c2 from the 3rd hydraulic fluid chamber c in the first passage c1 of chamber Inside it is provided with the 4th check valve 10.4 controlling hydraulic oil to flow into the 3rd hydraulic fluid chamber c；It is provided with control hydraulic pressure in the first passage d1 of d chamber The 5th check valve 10.5 that oil flows out from the 4th hydraulic fluid chamber d, is provided with control hydraulic oil and flows into the 4th liquid in the second channel d2 of d chamber 6th check valve 10.6 of pumping cavity d.

In technique scheme, be provided with the second channel a2 of a chamber for change the first check valve 10.1 opening direction One gag lever post 11.1, is provided with the second gag lever post for changing the second check valve 10.2 opening direction in the third channel a3 of a chamber 11.2；First gag lever post 11.1 and the second gag lever post 11.2 are all abutted with elastic spacing mechanism 7 when moving upward to setting stroke.

In technique scheme, elastic spacing mechanism 7 includes the upper elastic spacing set being set on single-piece piston 4 body of rod 7.1st, it is arranged on the lower elastic spacing set 7.2 being in contact with it connection below elastic spacing set 7.1 and be arranged on elasticity limit Limit spring 7.3 in position set 7.1 and the grooves that enclose of lower elastic spacing set 7.2, being provided with below lower elastic spacing set 7.2 can For the annular stop seat 7.4 abutting against with the first gag lever post 11.1, the second gag lever post 11.2.

The specific workflow of this utility model is as follows:

When complete vehicle curb condition, do not heighten from height-regulating device 20, in the presence of elastic spacing mechanism 7, the first gag lever post 11.1 and second gag lever post 11.2 pressurized after be respectively acting on the first check valve 10.1 and the second check valve 10.2, a chamber second leads to The first check valve 10.1 in the third channel a3 of road a2, a chamber, the valve element of the second check valve 10.2 are opened downwards so that flowing through a chamber The hydraulic oil of second channel a2, a chamber third channel a3 can two-way flow.

As shown in fig. 7, when car body vibrates upwards, plunger body 5 single-piece piston 4 relatively moves upwards, leads to the 4th hydraulic pressure Oil pocket d, the first hydraulic fluid chamber a volume reduce, oil pressure increases, and the 3rd hydraulic fluid chamber c, the 5th hydraulic fluid chamber e volume increase, oil pressure Reduce.The hydraulic oil of the first hydraulic fluid chamber a will flow into relatively low the of oil pressure by a chamber first passage a1 → e chamber first passage e1 In five hydraulic fluid chamber e, the hydraulic oil of the 4th hydraulic fluid chamber d will be flowed out by d chamber first passage d1 simultaneously, and from a chamber second channel A2, a chamber third channel a3 flows in the first hydraulic fluid chamber a.Hydraulic oil with the first hydraulic fluid chamber a is flowed into the 5th hydraulic oil Chamber e is so that the oil pressure in the 5th hydraulic fluid chamber e increases, due to the 3rd hydraulic pressure in the 3rd hydraulic fluid chamber c, the 4th hydraulic fluid chamber d The oil pressure of oil pocket c is relatively small, then in the second channel d2 of c chamber second channel c2, d chamber, the 4th check valve the 10.4, the 6th is single To under the control of valve 10.6, when the oil pressure of the 5th hydraulic fluid chamber e increases, passage e chamber second channel e2 → c chamber second channel c2 Passage e chamber second channel e2 → d chamber second channel d2 insertion will be had precedence over, in the 5th hydraulic fluid chamber e, hydraulic oil will be by e chamber Two passage e2 flow into, and are flowed in the 3rd hydraulic fluid chamber c through c chamber second channel c2, so that the liquid in the 3rd hydraulic fluid chamber c Force feed is supplemented.

As shown in figure 8, when car body vibrates downwards, plunger body 5 single-piece piston 4 relatively moves downward, and leads to the 3rd hydraulic pressure Oil pocket c, the 5th hydraulic fluid chamber e volume reduce, oil pressure increases, and the 4th hydraulic fluid chamber d, the first hydraulic fluid chamber a volume increase, oil pressure Reduce.The hydraulic oil of the 5th hydraulic fluid chamber e will flow into oil pressure by damp channel e chamber first passage e1 → a chamber first passage a1 In the first relatively low hydraulic fluid chamber a, the hydraulic oil of the 3rd hydraulic fluid chamber c will be flowed out by c chamber first passage c1 simultaneously, and from a chamber Second channel a2, a chamber third channel a3 flows in the first hydraulic fluid chamber a.Now due in the 3rd hydraulic fluid chamber c, the 4th hydraulic pressure In oil pocket d, the oil pressure of the 4th hydraulic fluid chamber d is relatively small, then in the second channel d2 of c chamber second channel c2, d chamber, the 4th is single To under valve 10.4, the control of the 6th check valve 10.6, passage e chamber second channel e2 → d chamber second channel d2 will have precedence over passage e Chamber second channel e2 → c chamber second channel c2 insertion, then in another part the 5th hydraulic fluid chamber e, hydraulic oil will be by e chamber Second channel e2 flows into, and is flowed in the 4th hydraulic fluid chamber d through d chamber second channel d2, so that in the 4th hydraulic fluid chamber d Hydraulic oil is supplemented.

When from height-regulating device 20 automatic adjustment height, vehicle is heightened by loaded position to the process of empty parking space, now elastic spacing Mechanism 7 is inoperative, that is, flow through the first check valve 10.1, the second check valve in the third channel a3 of a chamber second channel a2, a chamber 10.2 hydraulic oil can only one-way flow.When the upper and lower vibration of car body, the sustainable extruding of hydraulic oil is made by the control of check valve Flow in the second hydraulic fluid chamber b, lead to the oil pressure of the second hydraulic fluid chamber b to increase, thus heightening plunger body 5 and heightening cylinder body 6 Vertical distance, lifting plunger body 5, promote top cover 2 up, realize automatic adjustment height.

As shown in figure 9, when car body vibrates upwards, plunger body 5 single-piece piston 4 relatively moves upwards, leads to the 4th hydraulic pressure Oil pocket d, the first hydraulic fluid chamber a volume reduce, oil pressure increases, and the 3rd hydraulic fluid chamber c, the 5th hydraulic fluid chamber e volume increase, oil pressure Reduce.The hydraulic oil of the first hydraulic fluid chamber a will flow into oil pressure by damp channel a chamber first passage a1 → e chamber first passage e1 In the 5th relatively low hydraulic fluid chamber e, the hydraulic oil of the 4th hydraulic fluid chamber d will be flowed out by d chamber first passage d1, lead to from b chamber first Road b1 flows in the second hydraulic fluid chamber b；Meanwhile, the hydraulic oil of the first hydraulic fluid chamber a also can pass through a chamber second channel a2, a Chamber third channel a3 flows out, and flows into the second hydraulic fluid chamber b from b chamber first passage b1.Hydraulic oil with the first hydraulic fluid chamber a It is flowed into the 5th hydraulic fluid chamber e so that the oil pressure in the 5th hydraulic fluid chamber e increases, due in the 3rd hydraulic fluid chamber c, the 4th liquid In pumping cavity d, the oil pressure of the 3rd hydraulic fluid chamber c is relatively small, then the 4th in the second channel d2 of c chamber second channel c2, d chamber Under check valve 10.4, the control of the 6th check valve 10.6, when the oil pressure of the 5th hydraulic fluid chamber e increases, passage e chamber second channel E2 → c chamber second channel c2 will have precedence over passage e chamber second channel e2 → d chamber second channel d2 insertion, in the 5th hydraulic fluid chamber e Hydraulic oil will be flowed into by e chamber second channel e2, and be flowed in the 3rd hydraulic fluid chamber c through c chamber second channel c2, so that the Hydraulic oil in three hydraulic fluid chamber c is supplemented.

As shown in Figure 10, when car body vibrates downwards, plunger body 5 single-piece piston 4 relatively moves downward, and leads to the 3rd hydraulic pressure Oil pocket c, the 5th hydraulic fluid chamber e volume reduce, oil pressure increases, and the 4th hydraulic fluid chamber d, the first hydraulic fluid chamber a volume increase, oil pressure Reduce.The hydraulic oil of the 5th hydraulic fluid chamber e will flow into oil pressure by damp channel e chamber first passage e1 → a chamber first passage a1 In the first relatively low hydraulic fluid chamber a, the hydraulic oil of the 3rd hydraulic fluid chamber c will be flowed out by c chamber first passage c1 simultaneously, and from b chamber First passage b1 flows in the second hydraulic fluid chamber b.Now due to the 4th hydraulic pressure in the 3rd hydraulic fluid chamber c, the 4th hydraulic fluid chamber d The oil pressure of oil pocket d is relatively small, then in the second channel d2 of c chamber second channel c2, d chamber, the 4th check valve the 10.4, the 6th is single To under the control of valve 10.6, passage e chamber second channel e2 → d chamber second channel d2 will have precedence over passage e chamber second channel e2 → c Chamber second channel c2 insertion, then in another part the 5th hydraulic fluid chamber e, hydraulic oil will be flowed into by e chamber second channel e2, And be flowed in the 4th hydraulic fluid chamber d through d chamber second channel d2, so that the hydraulic oil in the 4th hydraulic fluid chamber d is supplemented.

When height is heightened to empty parking space, elastic spacing mechanism 7 works, and makes hydraulic oil no longer through b chamber first passage b1 Flow into the second hydraulic fluid chamber b, heighten end from height-regulating device, now the flow process of plunger body 5 internal hydraulic pressure oil and effect will Carry out by complete vehicle curb condition.If the hydraulic oil in the second hydraulic fluid chamber b flows out so that the second hydraulic fluid chamber b from b chamber first passage b1 Middle oil pressure reduces, and leads to plunger body 5 height reduction, if now the first gag lever post 11.1 and the second gag lever post 11.2 all no longer act on The first check valve 10.1 in its place passage and the second check valve 10.2, then oily the flowing over of plunger body 5 internal hydraulic pressure Journey and effect will be carried out by automatic adjustment height operating mode.

The above, specific embodiment only of the present utility model is it is noted that any be familiar with those skilled in the art In technical scope disclosed by this utility model for the member, the change or replacement that can readily occur in, all should cover in this utility model Protection domain within.

Claims (7)

1. a kind of rolling stock fluid pressure type is from heightening bogie, including two groups of wheels to (12), be symmetricly set on every group of wheel to (12) The axle box (13) of both sides, it is arranged on the side frame (14) on two axle box (13) tops of homonymy, is arranged between the side frame (14) of both sides Bolster (15), the elastic side bearing (16) being symmetricly set on bolster (15) and brake rigging (17), described bolster (15) two ends are located on the lower boom of side frame (14) by swing mechanism (18) respectively, the setting of described bolster (15) center There is center bearing (22), described brake rigging (17) passes through to brake suspension rod hanging on the cantilever beam of bolster (15), its feature It is: between the middle part of each described axle box (13) and the drawing strickle guide of side frame (14), be provided with loading spring (19), described loading bullet The both sides of spring (19) are respectively arranged with from height-regulating device (20), insert in axle box (13) from height-regulating device (20) bottom described in each It is fixedly connected with the bottom face of axle box (13), with its shape on embedded side frame (14) drawing strickle guide in the described top from height-regulating device (20) In rubber spring (21) the bottom mounting groove matching, and it is connected with the drawing strickle guide of side frame (14) by rubber spring (21).

2. rolling stock fluid pressure type according to claim 1 from heightening bogie it is characterised in that: described from height-regulating device (20) include the pedestal (1) of tubular, be arranged on the top cover (2) of the hollow structure that pedestal (1) top can slide up and down along its inwall, The inwall of described pedestal (1) is fitted with the outer wall of top cover (2) and is formed the accommodating chamber (3) of sealing；Be provided with described accommodating chamber (3) with The single-piece piston (4) of the vertically arranged rod-like structure of pedestal (1) bottom face, the periphery of described single-piece piston (4) is provided with to be slided with it The plunger body (5) of dynamic cooperation, the top of described plunger body (5) and bottom are respectively equipped with upper close with what single-piece piston (4) matched Capping (9.1) and lower sealing cover (9.2), described plunger body (5) top also upwardly extends formation annular boss (5.1), described ring Shape boss (5.1) abuts cooperation, described plunger with the annular concave platform (2.1) of top cover (2) inner chamber when moving upward to setting stroke It is provided between body (5) and pedestal (1) and cylinder body (6) can be heightened along what plunger body (5) outer wall slided up and down；

The bottom center of described pedestal (1) is provided with stepped mounting seat (1.1), the post of described single-piece piston (4) It is secured in embedded mounting seat (1.1) connect, the body of rod upper end of described single-piece piston (4) is provided with for plunger body (5) axle Carry out spacing elastic spacing mechanism (7) to stroke, in the middle part of the body of rod of described single-piece piston (4), be provided with the convex annular of outwardly convex Edge (4.1)；Described heightening is provided with inner spring (8.1) and outer spring (8.2) between cylinder body (6) bottom and pedestal (1) bottom；

The described cavity heightened between cylinder body (6) upper surface and top cover (2) inwall and plunger body (5) top annular boss (5.1) Internal cavity connection formed the first hydraulic fluid chamber (a), described annular boss (5.1) bottom is to the sky heightening cylinder body (6) inner face Between form the second hydraulic fluid chamber (b), the outer wall of described single-piece piston (4), the inwall of plunger body (5), top cover labyrinth (9.1), with And the annular space enclosing between annular flange flange (4.1) upper surface of single-piece piston (4) forms the 3rd hydraulic fluid chamber (c), institute State outer wall, the annular flange flange of the inwall of plunger body (5), lower sealing cover (9.2) and single-piece piston (4) of single-piece piston (4) (4.1) annular space enclosing between lower surface forms the 4th hydraulic fluid chamber (d), and described cylinder body (6) bottom face of heightening is to base The space of seat (1) bottom forms the 5th hydraulic fluid chamber (e).

3. rolling stock fluid pressure type according to claim 2 from heightening bogie it is characterised in that: described plunger body (5) Also include being arranged on annular boss (5.1) bottom and its integrally formed plunger body (5.2), be arranged on plunger body (5.2) The upper flange (5.3) of upper surface and the lower flange (5.4) being arranged on plunger body (5.2) lower surface；

It is provided with a chamber first passage (a1) connecting with the first hydraulic fluid chamber (a), a chamber second channel in described plunger body (5.2) (a2) b chamber first passage (b1) connecting with the second hydraulic fluid chamber (b) with a chamber third channel (a3) and the 3rd hydraulic fluid chamber The d chamber first passage that c c chamber first passage (c1) that () connects is connected with the 4th hydraulic fluid chamber (d) with c chamber second channel (c2) (d1) e chamber first passage (e1) connecting with the 5th hydraulic fluid chamber (e) with d chamber second channel (d2) and e chamber second channel (e2)；

Described a chamber first passage (a1) and first passage (e1) insertion of e chamber, described c chamber second channel (c2), d chamber second channel (d2) and it is mutually communicated between e chamber second channel (e2), described d chamber first passage (d1), a chamber third channel (a3), c chamber It is mutually communicated between first passage (c1), b chamber first passage (b1) and a chamber second channel (a2).

4. rolling stock fluid pressure type according to claim 3 from heightening bogie it is characterised in that: described a chamber second leads to It is provided with the first check valve (10.1) controlling hydraulic oil to flow out, described a chamber third channel from the first hydraulic fluid chamber (a) in road (a2) (a3) it is provided with the second check valve (10.2) controlling hydraulic oil to flow out from the first hydraulic fluid chamber (a) in；Described c chamber first passage (c1) it is provided with the 3rd check valve (10.3) controlling hydraulic oil to flow out from the 3rd hydraulic fluid chamber (c), described c chamber second channel in (c2) it is provided with the 4th check valve (10.4) controlling hydraulic oil to flow into the 3rd hydraulic fluid chamber (c) in；Described d chamber first passage (d1) Inside it is provided with the 5th check valve (10.5) controlling hydraulic oil to flow out from the 4th hydraulic fluid chamber (d), described d chamber second channel (d2) It is provided with the 6th check valve (10.6) controlling hydraulic oil to flow into the 4th hydraulic fluid chamber (d).

5. rolling stock fluid pressure type according to claim 4 from heightening bogie it is characterised in that: described a chamber second leads to It is provided with the first gag lever post (11.1) for changing the first check valve (10.1) opening direction, described a chamber threeway in road (a2) It is provided with the second gag lever post (11.2) for changing the second check valve (10.2) opening direction in road (a3)；Described first gag lever post (11.1) and the second gag lever post (11.2) is all abutted with elastic spacing mechanism (7) when moving upward to setting stroke.

6. rolling stock fluid pressure type according to claim 5 from heightening bogie it is characterised in that: described elastic spacing machine Structure (7) inclusion be set on single-piece piston (4) body of rod upper elastic spacing set (7.1), be arranged under elastic spacing set (7.1) Side is in contact with it the lower elastic spacing set (7.2) of connection and is arranged on elastic spacing set (7.1) and lower elastic spacing set (7.2) limit spring (7.3) in the groove enclosing, is provided with below described lower elastic spacing set (7.2) and can be used for and first The annular stop seat (7.4) that gag lever post (11.1), the second gag lever post (11.2) abut against.

7. the rolling stock fluid pressure type according to claim 3 or 4 or 5 or 6 from heightening bogie it is characterised in that: described Upper flange (5.3) is fixedly connected by screw assembly with the upper surface of plunger body (5.2)；Described lower flange (5.4) and plunger The lower surface of body (5.2) is fixedly connected by screw assembly.