CN107725526A - Hydraulic steering cylinder and there is its vehicle - Google Patents
Hydraulic steering cylinder and there is its vehicle Download PDFInfo
- Publication number
- CN107725526A CN107725526A CN201610665826.9A CN201610665826A CN107725526A CN 107725526 A CN107725526 A CN 107725526A CN 201610665826 A CN201610665826 A CN 201610665826A CN 107725526 A CN107725526 A CN 107725526A
- Authority
- CN
- China
- Prior art keywords
- piston
- hydraulic steering
- steering cylinder
- piston rod
- cylinder barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2215/00—Fluid-actuated devices for displacing a member from one position to another
- F15B2215/30—Constructional details thereof
Abstract
The invention discloses a kind of hydraulic steering cylinder and there is its vehicle, the hydraulic steering cylinder includes cylinder barrel, piston rod and piston, the piston is removable to be located in the cylinder barrel, the piston is rotationally connected with the piston rod around pivot center, and the pivot center overlaps with the central axis of the cylinder barrel.Hydraulic steering cylinder according to embodiments of the present invention, during Vehicular turn, the piston can surround pivot axis alone, thus the twisting resistance that abatement hydraulic steering cylinder is subject to, improve the working environment of hydraulic steering cylinder, the noise of vehicle when reducing steering operation, and the knuckle of vehicle and the torsional deflection degree of latch are reduced, extend the service life of knuckle, latch and hydraulic steering cylinder.
Description
Technical field
The present invention relates to vehicle manufacture field, in particular to a kind of hydraulic steering cylinder and has the hydraulic steering cylinder
Vehicle.
Background technology
In correlation technique, hydraulic steering cylinder is provided with the steering in vehicle, the piston rod of hydraulic steering cylinder is by inserting
Pin is connected with the knuckle of vehicle.In Vehicular turn, the piston rod of hydraulic steering cylinder will be by larger twisting resistance, so as to piston
Bar, latch and knuckle meeting torsional deflection, cause the fit clearance between knuckle and piston rod, between latch and knuckle
Increase, thus occur to hit during Vehicular turn and produce noise.If hydraulic steering cylinder is chronically under the working environment, turn
Easily it is broken with stress weakness such as latches to section, potential safety hazard is present, room for improvement be present.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
On the one hand it is to propose a kind of hydraulic steering cylinder that can cut down twisting resistance.
Another aspect of the present invention is to propose a kind of vehicle with above-mentioned hydraulic steering cylinder.
Hydraulic steering cylinder according to a first aspect of the present invention, including cylinder barrel, piston rod and piston, the piston is removable to be set
In the cylinder barrel, the piston is rotationally connected with the piston rod around pivot center, and the pivot center with it is described
The central axis of cylinder barrel overlaps.
Hydraulic steering cylinder according to a first aspect of the present invention, by making the piston and the piston rod can around pivot center
Rotationally be connected, during Vehicular turn, the piston can surround pivot axis alone, thus cut down hydraulic steering cylinder by
Twisting resistance, improve the working environment of hydraulic steering cylinder, the noise of vehicle when reducing steering operation, and reduce vehicle
The torsional deflection degree of knuckle and latch, extend the service life of knuckle, latch and hydraulic steering cylinder.
In addition, technical characteristic additional as follows can also be had according to the above-mentioned hydraulic steering cylinder of the present invention：
Preferably, the piston rod includes coaxial and spaced apart the first bar segment and the second bar segment, first bar segment and
At least one in second bar segment is rotationally connected with the piston.
Further, the hydraulic steering cylinder also includes connector, and the connector includes the first fixed part, the second fixation
Portion and rolling element, the piston are fixed with first fixed part, in first bar segment and second bar segment it is described extremely
Few one is fixed with second fixed part, and the rolling element is rollably clamped in first fixed part and consolidated with described second
Determine between portion.
Further, first fixed part be located on the piston and along the piston circumferentially extending it is first recessed
Groove, second fixed part are to be located at described at least one upper in first bar segment and second bar segment and along the work
Second groove of the circumferentially extending of stopper rod, first groove limit for accommodating the rolling jointly with second groove
The accommodating chamber of body.
Further, the connector is roller bearing.
Preferably, the piston includes coaxial and spaced apart the first mounting groove and the second mounting groove, first bar segment
It is installed in rotation in first mounting groove, second bar segment is installed in rotation in second mounting groove.
Preferably, be provided between the piston and the cylinder barrel wearing ring and along the cylinder barrel circumferentially extending and along described
Multiple piston packings of the axially spaced-apart of cylinder barrel.
Further, the multiple piston packing is symmetricly set on the both sides of the wearing ring.
Preferably, guide sleeve is provided between the cylinder barrel and the piston rod, the remote piston of the guide sleeve
Threaded one end is connected on the cylinder barrel, and the guide sleeve is set in outside piston rod, and the relatively described guide sleeve of the piston rod
It is removable.
Further, it is provided between one end of the neighbouring piston of the guide sleeve and the cylinder barrel along the cylinder barrel
Circumferentially extend and multiple guide sleeve sealing rings of axially spaced-apart along the cylinder barrel.
Further, it is provided between one end of the remote piston of the piston rod and the guide sleeve along the cylinder barrel
Axially spaced dust ring and piston rod seals, the dust ring be located at the remote work of the piston rod seals
The side of plug.
Further, one end of the close piston of the piston rod is supported on the guide sleeve by self-lubricating bearing
On.
Vehicle according to a second aspect of the present invention, including knuckle and hydraulic steering cylinder.The knuckle has two, described
Hydraulic steering cylinder is the hydraulic steering cylinder according to first aspect present invention is any, the piston rod of the hydraulic steering cylinder
Both ends are connected with two knuckles by latch respectively.The vehicle is with above-mentioned hydraulic steering cylinder relative to prior art
Have the advantage that identical, will not be repeated here.
Brief description of the drawings
Fig. 1 is the structural representation of the hydraulic steering cylinder described in the embodiment of the present invention；
Fig. 2 is the hydraulic steering cylinder and the sectional view of knuckle assembling described in the embodiment of the present invention；
Fig. 3 is the assembling schematic diagram of piston rod described in the embodiment of the present invention and the piston.
Reference：
Hydraulic steering cylinder 100,
Piston 101, the first mounting groove 1011, the second mounting groove 1012, piston rod 102, the first bar segment 1021, the second bar segment
1022, the first pin-and-hole 1023, the second pin-and-hole 1024, cylinder barrel 103, connector 104, the first fixed part 1041, the second fixed part
1042, rolling element 1043, wearing ring 105, piston packing 106, guide sleeve 107, guide sleeve sealing ring 108, piston rod packing
Circle 109, dust ring 110, self-lubricating bearing 111,
Knuckle 200,
Latch 300.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Below with reference to the accompanying drawings the present invention and is described in conjunction with specific embodiments.
With reference first to Fig. 1-Fig. 3 and it is described in conjunction with the embodiments the vehicle of the embodiment of the present invention.As shown in Fig. 2 according to this
The vehicle of inventive embodiments includes hydraulic steering cylinder 100 and two knuckles 200.
Below with reference to Fig. 1-Fig. 3 and it is described in conjunction with the embodiments the hydraulic steering cylinder 100 of the embodiment of the present invention.
As Figure 1-Figure 2, hydraulic steering cylinder 100 includes cylinder barrel 103, piston rod 102 and piston 101.Piston 101 is removable
Dynamic to be located in cylinder barrel 103, piston 101 is rotationally connected with piston rod 102 around pivot center, and pivot center and cylinder barrel 103
Central axis overlap.
The piston 101 of hydraulic steering cylinder 100 and cylinder barrel 103 are gap cooperation, piston 101 in the presence of hydraulic pressure
Moved reciprocatingly in cylinder barrel 103, so as to drive piston rod 102 to move.
One end of piston rod 102 is connected by a latch 300 with a knuckle 200, and the other end of piston rod 102 leads to
Cross another latch 300 with another knuckle 200 to be connected, the moving belt of piston rod 102 moves knuckle and rotated, and realizes vehicle
Turn to.
Specifically, one end of piston rod 102 is provided with the first pin-and-hole 1023, and the other end of piston rod 102 is provided with the second pin-and-hole
1024, a latch 300 coordinates with the first pin-and-hole 1023 and another latch 300 coordinates with the second pin-and-hole 1024, final to realize
The connection of hydraulic steering cylinder 100 and two knuckles 200.
In Vehicular turn, piston rod 102 bears larger twisting resistance, and the phase in the presence of twisting resistance of piston rod 102
Rotated for central axis of the piston 101 around cylinder barrel 103, so as to cut down above-mentioned twisting resistance, reduce and be delivered to vehicle
Knuckle 200 and latch 300 twisting resistance, reduce the torsional deflection degree of knuckle 200 and latch 300.
Hydraulic steering cylinder 100 according to embodiments of the present invention, by making piston 101 and piston rod 102 can around pivot center
Rotationally it is connected, during Vehicular turn, piston rod 102 can surround pivot axis alone, thus cut down hydraulic steering cylinder 100
The twisting resistance being subject to, the working environment of hydraulic steering cylinder 100 is improved, the noise of vehicle when reducing steering operation, and reduce
The knuckle 200 of vehicle and the torsional deflection degree of latch 300, extend knuckle 200, latch 300 and steering hydraulic
The service life of cylinder 100.
Vehicle according to embodiments of the present invention, by turn for setting the piston rod 102 with opposed rotatable and piston 101
To hydraulic cylinder 100, the twisting resistance born on piston rod 102 is cut down, has made knuckle 200, the latch being connected with piston rod 102
Deformation reduces caused by 300, and noise is small during steering, and avoids the occurrence of knuckle 200, the situation that latch 300 is broken, and reliability is high
And it is safe to use, while extend the service life of knuckle 200, latch 300 and hydraulic steering cylinder 100.
The hydraulic steering cylinder 100 of the embodiment of the present invention is described in detail with reference to Fig. 1-Fig. 3 and with reference to specific embodiment.
As shown in Figure 1-Figure 3, hydraulic steering cylinder 100 includes piston 101, piston rod 102, cylinder barrel 103, connector 104, work
Plug sealing ring 106, wearing ring 105, guide sleeve 107, guide sleeve sealing ring 108, piston rod seals 109, dust ring 110 and from
Lubricate bearing 111.
As shown in Figure 1-Figure 3, piston 101 is removable is located in cylinder barrel 103, and piston 101 is with piston rod 102 around pivot center
Rotationally it is connected, and pivot center overlaps with the central axis of cylinder barrel 103.
Preferably, as shown in Figure 1-Figure 3, piston rod 102 can include coaxial and spaced apart the first bar segment 1021 and the
Two bar segments 1022.In the central axial direction of cylinder barrel 103, the first bar segment 1021 and the second bar segment 1022 respectively with piston 101
Both sides are connected.
Preferably, as shown in Figure 1-Figure 3, piston rod 102 can include coaxial and spaced apart the first bar segment 1021 and the
Two bar segments 1022, at least one in the first bar segment 1021 and the second bar segment 1022 are rotationally connected with piston 101.
Preferably, as shown in Figures 2 and 3, hydraulic steering cylinder 100 can also include connector 104, and connector 104 includes
First fixed part 1041, the second fixed part 1042 and rolling element 1043, piston 101 are fixed with the first fixed part 1041.First bar
At least one in bar segment 1022 of section 1021 and second fixes with the second fixed part 1042.Rolling element 1043 is rollably clamped in
Between first fixed part 1041 and the second fixed part 1042.That is, connector 104 is installed on piston 101 and piston rod 102
Between, piston 101 passes through the rotationally phase of connector 104 with least one in the first bar segment 1021 and the second bar segment 1022
Even.Specifically, when piston rod 102 rotates around the axis of cylinder barrel 103, rolling element 1043 rolls, so that the first bar segment
1021 and second at least one in bar segment 1022 can be rotated relative to piston 101.
So that the first bar segment 1021 can rotationally be connected with piston 101 as an example, the fixed part 1041 of piston 101 and first is solid
Fixed, the first bar segment 1021 is fixed with the second fixed part 1042, rolling element 1043 be rollably clamped in the first fixed part 1041 and
Between second fixed part 1042, the second bar segment 1022 is fixedly linked with piston 101；It can be turned with piston 101 with the second bar segment 1022
Be connected dynamicly exemplified by, piston 101 is fixed with the first fixed part 1041, and the second bar segment 1022 is fixed with the second fixed part 1042, rolling
Kinetoplast 1043 is rollably clamped between the first fixed part 1041 and the second fixed part 1042, the first bar segment 1021 and piston
101 are fixedly linked.
In some preferred embodiments, as shown in Figures 2 and 3, along the central axial direction of cylinder barrel 103, connector 104
It can be two, two connectors 104 are located at the both sides of piston 101 respectively, and a connector 104 may be mounted at piston 101
Between the first bar segment 1021, another connector 104 be arranged on the bar segment 1022 of piston 101 and second between, piston 101 and two
First fixed part 1041 of individual connector 104 is fixed, and the second fixed part 1042 of the first bar segment 1021 and a connector 104 is solid
Fixed, the second bar segment 1022 and the second fixed part 1042 of another connector 104 are fixed, and rolling element 1043 is rollably clamped in
Between the corresponding fixed part 1042 of first fixed part 1041 and second.
Thus in Vehicular turn, the first bar segment 1021 is rotatable around the axis of cylinder barrel 103 relative to piston 101, and second
Bar segment 1022 is rotatable around the axis of cylinder barrel 103 relative to piston 101, when hydraulic steering cylinder 100 is by larger twisting resistance, the
One bar segment 1021 and the second bar segment 1022 can transfer abatement twisting resistance certainly by relatively independent, so as to further improve
The twisting resistance distribution of hydraulic steering cylinder 100, reduce the torsional deflection degree of the knuckle of vehicle.
In some preferred embodiments, as shown in figure 3, the first fixed part 1041 is is located on piston 101 and along piston
First groove of 101 circumferentially extending, the second fixed part 1042 are to be located in the first bar segment 1021 and the second bar segment 1022 extremely
Second groove of few one circumferentially extending upper and along piston rod 102, the first groove limit for holding jointly with the second groove
Receive the accommodating chamber of rolling element 1043.Rolling element 1043 can be ball or column roller, and rolling element 1043 is defined in the first groove
Between the second groove, in Vehicular turn, at least one drive rolling element in the first bar segment 1021 and the second bar segment 1022
1043 roll between the first groove and the second groove, so that at least one in the first bar segment 1021 and the second bar segment 1022
Rotated relative to piston 101.Piston rod 102 is connected to instead of to weld with the connected mode of piston 101 using ball or roller to be added
Work, processing technology is simplified, improve machining accuracy.
It should be noted that the concrete structure of connector 104 is more than that, and in other preferred embodiments, connection
Part 104 can also be roller bearing.The internal perisporium of the inner ring of roller bearing can be fixed with piston rod 102, outside roller bearing
The periphery wall of circle can be fixed with piston 101.In Vehicular turn, at least one in the first bar segment 1021 and the second bar segment 1022
Roller in individual drive roller bearing rolls in roller bearing, so that in the first bar segment 1021 and the second bar segment 1022 extremely
Few one rotates relative to piston 101.
Preferably, as shown in Figures 2 and 3, piston 101 can include coaxial and spaced apart the first mounting groove 1011 and the
Two mounting grooves 1012, the first bar segment 1021 are installed in rotation in the first mounting groove 1011, and the second bar segment 1022 is rotationally
In the second mounting groove 1012.Specifically, the first mounting groove 1011 and the second mounting groove 1012 are respectively provided at piston 101
Both sides, the first mounting groove 1011 are connected with the end of the first bar segment 1021, the end of the second mounting groove 1012 and the second bar segment 1022
Portion connects, so as to define the displacement of piston rod 102 along cylinder barrel 103 radially, power of the guarantee effect on the axial direction of piston rod 102
Can be along the central axis transmission of cylinder barrel 103.
In some preferred embodiments, as depicted in figs. 1 and 2, wearing ring 105 is provided between piston 101 and cylinder barrel 103
Multiple piston packings 106 of axially spaced-apart with the circumferentially extending along cylinder barrel 103 and along cylinder barrel 103.It can divide on piston 101
It is not correspondingly arranged along the circumferentially extending of cylinder barrel 103 for installing the wearing ring mounting groove of wearing ring 105 and for installing piston
The piston packing mounting groove of sealing ring 106.The centre of piston 101 can be enclosed on wearing ring 105, for preventing piston 101
It is impaired with the friction of cylinder barrel 103 in motion.Piston packing 106 can prevent hydraulic oil from piston 101 along the side of the axis of cylinder barrel 103
Opposite side is leaked to, ensure that the driveability of hydraulic steering cylinder 100.
Specifically, as depicted in figs. 1 and 2, multiple piston packings 106 can be symmetricly set on the both sides of wearing ring 105,
Structural symmetry is good, and the both sides of wearing ring 105 are sealed by piston packing 106, good seal performance, and make hydraulic steering cylinder
100 it is simple and compact for structure, piston 101 is not easy to loosen, ensure that piston 101 work when stability.
Preferably, as depicted in figs. 1 and 2, guide sleeve 107, guide sleeve can be provided between cylinder barrel 103 and piston rod 102
The threaded one end of 107 remote piston 101 is connected on cylinder barrel 103, and 107 sets of guide sleeve can be set in outside piston rod 102, and
Piston rod 102 can be oppositely oriented the movement of set 107.That is, when hydraulic steering cylinder 100 works, guide sleeve 107 and cylinder barrel
103 fix, and piston rod 102 moves in guide sleeve 107.Preferably, guide sleeve 107 is respectively provided at the both ends of cylinder barrel 103, can be with
Understand, guide sleeve 107 is respectively fitted in the first bar segment 1021 and the second bar segment 2022.Guide sleeve 107 can ensure piston
Central axis of the first bar segment 1021 and the second bar segment 1022 of bar 102 along cylinder barrel 103 moves, and prevents piston rod 102 from transporting
Occur directly to contact and rub with cylinder barrel 103 during dynamic, so as to extend the service life of piston rod 102.
Preferably, as depicted in figs. 1 and 2, can be set between one end of the adjacent piston 101 of guide sleeve 107 and cylinder barrel 103
Have multiple guide sleeve sealing rings 108 of the circumferentially extending along cylinder barrel 103 and the axially spaced-apart along cylinder barrel 103, guide sleeve 107 it is outer
The guide sleeve sealing ring mounting groove of multiple circumferentially extendings along cylinder barrel 103 can be correspondingly arranged on perisporium, for installing guide sleeve
Sealing ring 108.Guide sleeve sealing ring 108 is used to prevent hydraulic oil from revealing from space of the guide sleeve 107 with cylinder barrel 103.
Further, as depicted in figs. 1 and 2, can between one end of the remote piston 101 of piston rod 102 and guide sleeve 107
With the dust ring 110 and piston rod seals 109 of the axially spaced-apart provided with the circumferentially extending along cylinder barrel 103 and along cylinder barrel 103, prevent
Konisphere 110 is located at the side of the remote piston 101 of piston rod seals 109.Specifically, can be corresponded to respectively on guide sleeve 107
Provided with along cylinder barrel 103 circumferentially extend be used for the dust ring mounting groove of dust ring 110 is installed and for installing piston rod seals
109 piston rod seals mounting groove.Preferably, dust ring can be set in the first bar segment 1021 and the second bar segment 1022
110 and piston rod seals 109, to ensure the sealing integrity of hydraulic steering cylinder 100.
Preferably, as depicted in figs. 1 and 2, dust ring 110 can be located at the outside of piston rod seals 109, prevent dust from entering
Enter the internal contamination hydraulic oil of piston 101, ensure that the greasy property of hydraulic oil to extend the service life of hydraulic steering cylinder 100.
Piston rod seals 109 are used to prevent that hydraulic oil is between piston rod 102 and guide sleeve 107 in the motion process of piston rod 102
Gap is revealed.
Preferably, as depicted in figs. 1 and 2, one end of the close piston 101 of piston rod 102 can pass through self-lubricating bearing
111 are supported on guide sleeve 107.There is kollag in self-lubricating bearing 111, piston rod 102 is done back and forth in cylinder barrel 103
During motion, kollag is constantly provided in the friction part of piston rod 102, ensures the good lubrication of piston rod 102.
To sum up, hydraulic steering cylinder 100 according to embodiments of the present invention, piston 101 is removable to be located in cylinder barrel 103, piston
Bar 102 is provided with coaxial and spaced apart the first bar segment 1021 and the second bar segment 1022, the first bar segment 1021 and the second bar segment 1022
In it is at least one be rotationally connected with piston 101, the twisting resistance that is subject to of abatement hydraulic steering cylinder 100, improve steering
The working environment of hydraulic cylinder 100, the noise of vehicle when reducing steering operation, and reduce the knuckle 200 and latch 300 of vehicle
Torsional deflection degree, extend the service life of knuckle 200, latch 300 and hydraulic steering cylinder 100.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " week
To " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of and describe this hair
It is bright and simplify description, rather than instruction or imply that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (13)
- A kind of 1. hydraulic steering cylinder, it is characterised in that including：Cylinder barrel；Piston rod；Piston, the piston is removable to be located in the cylinder barrel, the piston and the piston rod around pivot center rotationally It is connected, and the pivot center overlaps with the central axis of the cylinder barrel.
- 2. hydraulic steering cylinder according to claim 1, it is characterised in that the piston rod includes coaxial and spaced apart the One bar segment and the second bar segment, at least one and piston in first bar segment and second bar segment rotationally phase Even.
- 3. hydraulic steering cylinder according to claim 2, it is characterised in that also include：Connector, the connector include the One fixed part, the second fixed part and rolling element, the piston are fixed with first fixed part, first bar segment and described In two bar segments it is described it is at least one fixed with second fixed part, it is solid that the rolling element is rollably clamped in described first Determine between portion and second fixed part.
- 4. hydraulic steering cylinder according to claim 3, it is characterised in that first fixed part is to be located on the piston And the first groove of the circumferentially extending along the piston, second fixed part are to be located at first bar segment and second bar Second groove of the circumferentially extending at least one upper and along the piston rod in section, first groove and described second Groove limits the accommodating chamber for accommodating the rolling element jointly.
- 5. hydraulic steering cylinder according to claim 2, it is characterised in that also including connector, the connector is roller Bearing.
- 6. hydraulic steering cylinder according to claim 2, it is characterised in that the piston includes coaxial and spaced apart first Mounting groove and the second mounting groove, first bar segment are installed in rotation in first mounting groove, and second bar segment can It is rotatably mounted in second mounting groove.
- 7. hydraulic steering cylinder according to claim 1, it is characterised in that be provided between the piston and the cylinder barrel wear-resistant Ring and the circumferentially extending along the cylinder barrel and multiple piston packings of the axially spaced-apart along the cylinder barrel.
- 8. hydraulic steering cylinder according to claim 7, it is characterised in that the multiple piston packing is symmetricly set on institute State the both sides of wearing ring.
- 9. hydraulic steering cylinder according to claim 1, it is characterised in that be provided with and lead between the cylinder barrel and the piston rod To set, the threaded one end of the remote piston of the guide sleeve is connected on the cylinder barrel, and the guide sleeve is set in piston Outside bar, and the relatively described guide sleeve of the piston rod may move.
- 10. hydraulic steering cylinder according to claim 9, it is characterised in that the one of the neighbouring piston of the guide sleeve The circumferentially extending along the cylinder barrel is provided between end and the cylinder barrel and multiple guide sleeves of the axially spaced-apart along the cylinder barrel are close Seal.
- 11. hydraulic steering cylinder according to claim 9, it is characterised in that the one of the remote piston of the piston rod The axially spaced dust ring and piston rod seals along the cylinder barrel, the dust ring are provided between end and the guide sleeve Positioned at the side of the remote piston of the piston rod seals.
- 12. hydraulic steering cylinder according to claim 9, it is characterised in that the one of the close piston of the piston rod End is supported on the guide sleeve by self-lubricating bearing.
- A kind of 13. vehicle, it is characterised in that including：Two knuckles；Hydraulic steering cylinder, the hydraulic steering cylinder is the hydraulic steering cylinder according to any one of claim 1-12, described The both ends of the piston rod of hydraulic steering cylinder are connected with two knuckles by latch respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665826.9A CN107725526B (en) | 2016-08-12 | 2016-08-12 | Steering hydraulic cylinder and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610665826.9A CN107725526B (en) | 2016-08-12 | 2016-08-12 | Steering hydraulic cylinder and vehicle with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107725526A true CN107725526A (en) | 2018-02-23 |
| CN107725526B CN107725526B (en) | 2022-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610665826.9A Active CN107725526B (en) | 2016-08-12 | 2016-08-12 | Steering hydraulic cylinder and vehicle with same |
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| Country | Link |
|---|---|
| CN (1) | CN107725526B (en) |
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| JP2012116414A (en) * | 2010-12-03 | 2012-06-21 | Tcm Corp | Steering cylinder |
| CN202326505U (en) * | 2011-11-28 | 2012-07-11 | 安庆市天润工程机械有限责任公司 | Forklift steering hydraulic cylinder |
| CN104797792A (en) * | 2012-10-12 | 2015-07-22 | Spx公司 | Self aligning piston and manufacture method thereof |
-
2016
- 2016-08-12 CN CN201610665826.9A patent/CN107725526B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598271A (en) * | 1947-01-08 | 1952-05-27 | Francis E Klosterman | Servomotor with lubricated rotatable piston rod |
| AT368406B (en) * | 1980-09-18 | 1982-10-11 | Raedler Xaver S | PIPE CLEANING DEVICE |
| US5904440A (en) * | 1997-07-18 | 1999-05-18 | Sims; James O. | Piston/piston rod assembly having positive locking means between said piston and said piston rod |
| DE102009016465A1 (en) * | 2009-04-04 | 2010-10-14 | Zf Friedrichshafen Ag | Operating arrangement for e.g. brake of motor vehicle used in automotive engineering, has piston rod whose end areas are connected with pedal and piston, respectively, where piston takes predetermined rotary position at pedal |
| JP2012116414A (en) * | 2010-12-03 | 2012-06-21 | Tcm Corp | Steering cylinder |
| CN201982408U (en) * | 2011-01-17 | 2011-09-21 | 江阴市洪腾机械有限公司 | Double piston rod hydraulic cylinder |
| CN202326505U (en) * | 2011-11-28 | 2012-07-11 | 安庆市天润工程机械有限责任公司 | Forklift steering hydraulic cylinder |
| CN104797792A (en) * | 2012-10-12 | 2015-07-22 | Spx公司 | Self aligning piston and manufacture method thereof |
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|---|---|
| CN107725526B (en) | 2022-02-08 |
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