CN205916145U - High automatic adjusting device of fluid pressure type - Google Patents
High automatic adjusting device of fluid pressure type Download PDFInfo
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- CN205916145U CN205916145U CN201620778803.4U CN201620778803U CN205916145U CN 205916145 U CN205916145 U CN 205916145U CN 201620778803 U CN201620778803 U CN 201620778803U CN 205916145 U CN205916145 U CN 205916145U
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Abstract
The utility model discloses a high automatic adjusting device of fluid pressure type, this high automatic adjusting device of fluid pressure type include the tube -shape the base, set up gliding hollow structure's about can following its inner wall at the base top top cap, the inner wall of base forms the sealed chamber that holds with the laminating of the outer wall of top cap, hold the intracavity be equipped with with the one piece piston of the perpendicular shaft -like structure of arranging of base bottom face, one piece piston's periphery is equipped with the plunger body rather than sliding fit, the top of the plunger body and bottom be equipped with respectively with one piece piston matched with top cover labyrinth and lower sealing cover, plunger body top is still upwards extended and is formed annular boss. The utility model discloses utilize each hydraulic oil cavity's of vehicle reciprocal vibration from top to bottom change the volume size to utilize pressure differential drive hydraulic oil directional flow in five hydraulic oil cavity, realize vertical high automation and increase, avoided the coupling fracture hidden danger that the coupling discrepancy in elevation leads to between sky, the reconditioning.
Description
Technical field
This utility model is related to be suitable to the height automatic regulating apparatus of rolling stock use, high in particular to a kind of fluid pressure type
Degree automatic regulating apparatus.
Background technology
In prior art, the device realizing height adjustment is broadly divided into non-automatic and two kinds of self-action:
(1) non-automatic height adjuster
Non-automatic height adjuster refers specifically to need extra power to realize the device of height regulating function, including following shape
Formula: (1) frame for movement: the patent of invention if number of patent application is 201210352451.2 discloses a kind of height adjuster,
This height adjuster adjusts support bar height by voussoir mobile device；(2) pneumatic structure: as number of patent application is
201210265800.7 patent of invention disclose a kind of tractor height automatic regulating apparatus include air accumulator, altitude valve, turn
Change valve, electromagnetism levelling valve and air spring, its principle is to control the inflatable and deflatable of air spring by control valve,
Realize the height adjustment of tractor；(3) hydraulic structure: the patent of invention if number of patent application is 201310426918.8 discloses
A kind of Bridge Erector height adjuster, this invention realizes the adjustment of vertical height using two sets of hydraulic cylinders.
(2) self-action height adjuster
Self-action height adjuster refers specifically to the device not needing extra power source to can be achieved with height regulating function, including
Following form: (1) frame for movement: if number of patent application is disclosed " the railway freight-car self-regulated of 201510551568.7 patents of invention
High device ", number of patent application are 201510551604.x patent of invention disclosed " railway freight-car heightens bogie certainly ", using upper
The kinetic energy of lower vibration, the one-way movement of supporting plate in being realized by the latching characteristics of installation, reach the purpose of adjustment height；
(2) hydraulic structure: if number of patent application is the disclosed " bogie core disc of railway vehicle of 201310186108.x utility model patent
Height automatic regulating apparatus ", number of patent application are disclosed " the railway vehicle axle box suspension type of 201310185296.4 patents of invention
From heightening bogie ", number of patent application be disclosed " the railway car center suspension type self-regulated of 201310186106.0 patents of invention
High bogie ", mainly by interior outer cylinder body, interior outer piston, push-pull bar, rubber bearing spring and carrying top cover composition, and be enclosed with
Four hydraulic fluid chambers, using the kinetic energy of up-down vibration, by the directed movement of the control realization hydraulic oil of check valve, raise carrying
Top cover, reaches the purpose of adjustment height.
However, there is deficiency as follows in above-mentioned height adjuster: (1) existing non-automatic height adjuster needs volume
Exterior power source, such as motor, inflation venting or manpower etc., increased the complexity of structure and manufacture maintenance cost, and
And certain structures or product are due to being limited and cannot widely be used by design size, operation environment, even cost；
(2) existing self-action height adjuster is limited to hitch height, and bogie spring works amount of deflection is less it is impossible to effectively reduce
Active force between wheel track；Further, since the hitch difference in height between sky, loaded vehicle, hitch unbalance stress, easily cause hitch and break
Split accident, jeopardize traffic safety.
Content of the invention
The purpose of this utility model seeks to provide a kind of fluid pressure type height automatic regulating apparatus, and this fluid pressure type is highly automated
Adjusting apparatus are using the upper and lower volume size to change each hydraulic fluid chamber of reciprocating vibration of vehicle, thus being driven using pressure differential
Hydraulic oil directed flow in five hydraulic fluid chambers, realize vertical highly automated regulation, it is to avoid the hitch discrepancy in elevation between empty, loaded vehicle
Lead to hitch fracture hidden danger, also improve height adjustment range, increased work amount of deflection it is ensured that driving safety.
For achieving the above object, the fluid pressure type height automatic regulating apparatus designed by this utility model, including the base of tubular
Seat, it is arranged on the top cover of the hollow structure that pedestal top can slide up and down along its inwall, the inwall of described pedestal is outer with top cover
Wall laminating forms the accommodating chamber of sealing；The described intracavity that accommodates is provided with the entirety work with the vertically arranged rod-like structure in base bottom face
Plug, the periphery of described single-piece piston is provided with the plunger body being slidably matched with it, and the top of described plunger body and bottom are respectively equipped with
The top cover labyrinth matching with single-piece piston and lower sealing cover, described plunger body top also upwardly extends formation annular boss, institute
State and when annular boss moves upward to setting stroke, abut cooperation with the annular concave platform of top cover inner chamber, described plunger body and pedestal it
Between be provided with and can heighten cylinder body along what plunger body outer wall slided up and down；
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.
Operation principle of the present utility model 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 changes the volume size of each hydraulic fluid chamber using vehicle vertical up-down vibration kinetic energy,
Thus driving hydraulic oil directed flow in five hydraulic fluid chambers using pressure differential, hydraulic oil being extruded and flows into the second hydraulic fluid chamber
In so that plunger body and heighten the vertical distance of cylinder body and increase, thus lifting plunger body, promote top cover up, realize vertical height
That spends automatically adjusts.
Second, this utility model controls the one-way flow of hydraulic oil using check valve, thus controlling hydraulic oil at five
Directed flow in hydraulic fluid chamber, and then realize automatically adjusting of vertical height.
Third, this utility model passes through to be provided with, in plunger body, the passage connecting with five hydraulic fluid chambers it is achieved that hydraulic pressure
Circulation between five hydraulic fluid chambers for the oil, it is possible to provide suitable damping, has effectively relaxed vertical impact, improves wheel rail member effect
Power.
Fourth, this utility model height automatic regulating apparatus amplitude modulation is big, stability is high, can effectively solve the problem that because empty and load
Between the hitch difference in height problem that causes unbalance stress and rupture, improve reliability, reduce vehicle transport security risk, increase fortune
Defeated economic benefit.
Brief description
Fig. 1 is a kind of cross section structure diagram of fluid pressure type height automatic regulating apparatus；
Fig. 2 is the mplifying structure schematic diagram of elastic position-limit mechanism in Fig. 1；
Fig. 3 is the cross section structure diagram in Fig. 1 along a-a direction；
Fig. 4 is the deployed configuration schematic diagram in Fig. 3 along b-b direction；
Plunger body internal hydraulic pressure oil flow process schematic diagram when Fig. 5 vibrates upwards for complete vehicle curb condition car body；
Plunger body internal hydraulic pressure oil flow process schematic diagram when Fig. 6 vibrates downwards for complete vehicle curb condition car body；
Plunger body internal hydraulic pressure oil flow process schematic diagram when Fig. 7 vibrates upwards for loaded vehicle state car body；
Plunger body internal hydraulic pressure oil flow process schematic diagram when Fig. 8 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, the first liquid
Pumping cavity a, the second hydraulic fluid chamber b, the 3rd hydraulic fluid chamber c, the 4th hydraulic fluid chamber 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.
Fluid pressure type height automatic regulating apparatus shown in figure, including the pedestal 1 of tubular, being arranged on pedestal 1 top can edge
The top cover 2 of the hollow structure that its inwall slides up and down, the inwall of pedestal 1 is fitted with the outer wall of top cover 2 and is formed the accommodating chamber of sealing
3；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 accommodating chamber 3
The plunger body 5 being slidably matched with it, the top of described plunger body 5 and bottom are respectively equipped with match with single-piece piston 4 upper close
Capping 9.1 and lower sealing cover 9.2, plunger body 5 top also upwardly extends formation annular boss 5.1, and annular boss 5.1 moves upwards
Abut cooperation to when setting stroke 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
What 5 outer walls slided 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 being arranged on annular boss 5.1 bottom with its integrally formed plunger originally
Body 5.2, the upper flange 5.3 being arranged on plunger body 5.2 upper surface and the lower flange being arranged on plunger body 5.2 lower surface
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 be 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, height automatic regulating apparatus are not heightened, and in the presence of elastic spacing mechanism 7, first is spacing
Bar 11.1 and the 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
The first check valve 10.1 in the third channel a3 of passage a2, a chamber, the valve element of the second check valve 10.2 are opened downwards so that flowing through a
The hydraulic oil of chamber second channel a2, a chamber third channel a3 can two-way flow.
As shown in figure 5, 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 fig. 6, 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 height automatic regulating apparatus automatic adjustment height, vehicle is heightened by loaded position to the process of empty parking space, now elasticity
Position-limit mechanism 7 is inoperative, that is, flow through the first check valve 10.1, second in the third channel a3 of a chamber second channel a2, a chamber unidirectional
The hydraulic oil of valve 10.2 can only one-way flow.When the upper and lower vibration of car body, make hydraulic oil sustainable crowded by the control of check valve
Pressure flows in the second hydraulic fluid chamber b, leads 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 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 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 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 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 (6)
1. a kind of fluid pressure type height automatic regulating apparatus it is characterised in that: include tubular pedestal (1), be arranged on pedestal (1) top
The top cover (2) of the hollow structure that portion can slide up and down along its inwall, the inwall of described pedestal (1) is fitted with the outer wall of top cover (2)
Form the accommodating chamber (3) of sealing；It is provided with whole with the vertically arranged rod-like structure of pedestal (1) bottom face in described accommodating chamber (3)
Body piston (4), the periphery of described single-piece piston (4) is provided with the plunger body (5) being slidably matched with it, the top of described plunger body (5)
Portion and bottom are respectively equipped with the top cover labyrinth (9.1) matching with single-piece piston (4) and lower sealing cover (9.2), described plunger body
(5) top also upwardly extends formation annular boss (5.1), and described annular boss (5.1) moves upward to during setting stroke and top
The annular concave platform (2.1) of lid (2) inner chamber abuts cooperation, and being provided between described plunger body (5) and pedestal (1) can be along plunger body (5)
What outer wall slided up and down heightens cylinder body (6)；
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).
2. fluid pressure type height automatic regulating apparatus according to claim 1 it is characterised in that: described plunger body (5) is also wrapped
Include and be arranged on annular boss (5.1) bottom and its integrally formed plunger body (5.2), be arranged on plunger body (5.2) upper end
The upper flange (5.3) in face 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).
3. fluid pressure type height automatic regulating apparatus according to claim 2 it is characterised in that: described a chamber second channel
(a2) it is provided with the first check valve (10.1) controlling hydraulic oil to flow out from the first hydraulic fluid chamber (a), described a chamber third channel in
(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).
4. fluid pressure type height automatic regulating apparatus according to claim 3 it is characterised in that: described a chamber second channel
(a2) it is provided with the first gag lever post (11.1) for changing the first check valve (10.1) opening direction, described a chamber third channel in
(a3) it is provided with the second gag lever post (11.2) for changing the second check valve (10.2) opening direction in；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.
5. fluid pressure type height automatic regulating apparatus according to claim 4 it is characterised in that: described elastic spacing mechanism
(7) include be set on single-piece piston (4) body of rod upper elastic spacing set (7.1), be arranged on below elastic spacing set (7.1)
It is in contact with it the lower elastic spacing set (7.2) of connection and be 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.
6. the fluid pressure type height automatic regulating apparatus according to Claims 2 or 3 or 4 or 5 it is characterised in that: described upper method
Blue (5.3) are fixedly connected by screw assembly with the upper surface of plunger body (5.2)；Described lower flange (5.4) and plunger body
(5.2) lower surface is fixedly connected by screw assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620778803.4U CN205916145U (en) | 2016-07-22 | 2016-07-22 | High automatic adjusting device of fluid pressure type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620778803.4U CN205916145U (en) | 2016-07-22 | 2016-07-22 | High automatic adjusting device of fluid pressure type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205916145U true CN205916145U (en) | 2017-02-01 |
Family
ID=57873690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620778803.4U Withdrawn - After Issue CN205916145U (en) | 2016-07-22 | 2016-07-22 | High automatic adjusting device of fluid pressure type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205916145U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143524A (en) * | 2016-07-22 | 2016-11-23 | 中车长江车辆有限公司 | Fluid pressure type height automatic regulating apparatus |
| CN108545093A (en) * | 2018-04-11 | 2018-09-18 | 中车株洲电力机车有限公司 | A kind of track train and its hydraulic lift system |
| CN108569304A (en) * | 2017-03-08 | 2018-09-25 | 庞巴迪运输有限公司 | The secondary suspension that can adjust height for rolling stock |
-
2016
- 2016-07-22 CN CN201620778803.4U patent/CN205916145U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106143524A (en) * | 2016-07-22 | 2016-11-23 | 中车长江车辆有限公司 | Fluid pressure type height automatic regulating apparatus |
| CN108569304A (en) * | 2017-03-08 | 2018-09-25 | 庞巴迪运输有限公司 | The secondary suspension that can adjust height for rolling stock |
| CN108545093A (en) * | 2018-04-11 | 2018-09-18 | 中车株洲电力机车有限公司 | A kind of track train and its hydraulic lift system |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170201 Effective date of abandoning: 20180313 |
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| AV01 | Patent right actively abandoned |