CN109436087A - A kind of steering hydraulic oil cooling device for commercial vehicle - Google Patents
A kind of steering hydraulic oil cooling device for commercial vehicle Download PDFInfo
- Publication number
- CN109436087A CN109436087A CN201811419999.8A CN201811419999A CN109436087A CN 109436087 A CN109436087 A CN 109436087A CN 201811419999 A CN201811419999 A CN 201811419999A CN 109436087 A CN109436087 A CN 109436087A
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- China
- Prior art keywords
- oil
- plate
- bracket
- oil inlet
- column
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
Abstract
A kind of steering hydraulic oil cooling device for commercial vehicle, including steering oil temperature radiator and radiator bearer, the steering oil temperature radiator includes oil inlet end, heat radiator body and oil outlet, the heat radiator body includes oil inlet column, upper junction plate, lower connecting plate and oil column out, the bottom end of the oil inlet column is connected with the top of oil inlet end, the medial surface of oil inlet column it is upper, lower both ends are respectively through upper, lower connecting plate is upper with the medial surface of oil column out, lower both ends are correspondingly connected with, the lateral surface of oil column is connected with oil outlet out, on, multiple heat dissipation laminates being parallel to each other two-by-two are provided between lower connecting plate, radiate laminate, oil inlet end, oil outlet, oil inlet column, the oil pocket in oil column integrally penetrates through out, and into, the lateral surface of oil column is connected through radiator bearer with vehicle frame out.Not only pipeline structure is simple by the design, heat dissipation effect is preferable, but also assembly difficulty is lower, firmness is relatively strong, lighter in weight.
Description
Technical field
The present invention relates to a kind of radiator more particularly to a kind of steering hydraulic oil cooling device for commercial vehicle, tools
Body is suitable for enhancing heat dissipation effect, and simplifies structure design.
Background technique
Currently, engineering truck generallys use hydraulic power-assisted steering pipe-line system, power steering function is realized, wherein electronic work
Journey vehicle uses electric hydraulic power-assisted steering pipe-line system, realizes power steering function, still, above-mentioned engineering truck is mostly in steering tube
Oil temperature radiator is not designed in the system of road.When working long hours, especially apply long on the engineering truck on the severe building site of operating condition
When time service, the temperature of steering hydraulic oil can be made to rise rapidly, after reaching certain temperature, steering hydraulic oil can be thinning, property
It can be deteriorated, in addition, output pressure decline can occur under high temperature hydraulic oil working condition for steering pump, flow is reduced, even not
The phenomenon that fuel feeding, causes the system power-assisted efficiency of the steering pipeline to weaken, or even failure, causes traffic safety hidden danger, in addition, liquid
The excessively high electric powered steering pump damage that can not only make electronic engineering truck of pressure oil temperature, but also each rubber seal in steering system can be made
Part quick aging reduces sealing performance, shortens the service life of components, reduce the reliability and durability of system.
Authorization Notice No. is CN203666762U, and authorized announcement date is that the utility model patent on June 25th, 2014 discloses
A kind of heavy truck steering system integrated radiating device, is made of, described radiator one end is equipped with multiple cooling fins
Drain tap, the first oil return opening and the first collecting fitting, the other end are equipped with isocon, the second collecting fitting, fuel sucking pipe and the second oil return opening.
Although the design can reduce the oil temperature of steering hydraulic system, it is still had the disadvantage that
The construction for heat radiating device added in the design is complicated, is provided with multiple inflow pipelines to suck steering liquid, such as oil suction
Pipe, the first oil return sebific duct, the second oil return sebific duct, the design of this multi-pipeline not only increase the total length of heat dissipation pipeline, improve
Installation difficulty, and the quantity of pipeline revolution or crooked route is increased, reduce heat dissipation effect.
The information for disclosing the background technology part is merely intended to increase the understanding to the general background of present patent application, without
It should be considered as recognizing or implying in any form that the information constitutes existing skill already known to those of ordinary skill in the art
Art.
Summary of the invention
The purpose of the present invention is overcome pipeline structure existing in the prior art is complicated, heat dissipation effect is poor defect and ask
Topic, provides the steering hydraulic oil cooling device that a kind of pipeline structure is simple, heat dissipation effect is preferably used for commercial vehicle.
In order to achieve the above object, the technical solution of the invention is as follows: a kind of steering hydraulic oil cooling for commercial vehicle
Device, including steering oil temperature radiator and radiator bearer, the steering oil temperature radiator are connected through radiator bearer with vehicle frame
It connects；
The steering oil temperature radiator includes oil inlet end, heat radiator body and oil outlet, and the heat radiator body includes oil inlet column, upper company
Fishplate bar, lower connecting plate and oil column, the bottom end of the oil inlet column out are connected with the top of oil inlet end, the medial surface of oil inlet column
Upper/lower terminal of the upper/lower terminal respectively through upper junction plate, lower connecting plate and the medial surface of oil column out is correspondingly connected with, fuel-displaced
The lateral surface of column is connected with oil outlet, and multiple heat dissipating layers being parallel to each other two-by-two are provided between upper junction plate, lower connecting plate
Plate, the both ends of the heat dissipation laminate are connected with the medial surface of oil inlet column, the medial surface for going out oil column respectively, all heat dissipation laminates
Leading flank or trailing flank constitute radiating surface；
The inside of the heat dissipation laminate offers heat radiation oil duct, and inlet side oil pocket is offered in oil inlet end, is offered out in oil outlet
Oil pocket is held, offers oil inlet column chamber in oil inlet column, offers out oil column chamber, the inlet side oil pocket and oil inlet column chamber in oil column out
Bottom communicates, and the side of oil inlet column chamber is communicated through heat radiation oil duct with the side of oil column chamber out, out the other side of oil column chamber and outlet
Oil pocket communicates；The oil inlet column, the lateral surface for going out oil column are connected through radiator bearer with vehicle frame.
The heat radiation oil duct includes multiple heat dissipation seed oil roads arranged side by side, and heat dissipation seed oil road moves towards phase with heat radiation oil duct
Together, and the width of heat radiation oil duct be less than heat dissipation laminate width.
Between the upper junction plate and similar heat dissipation laminate, between lower connecting plate and similar heat dissipation laminate, Yi Jixiang
Multiple cooling fins, the both ends of cooling fin upper junction plate in contact, lower connection are both provided between adjacent heat dissipation laminate
Plate or heat dissipation laminate are vertically connected.
The oil inlet end and oil inlet column are coaxially disposed, and oil outlet is vertical with the middle part of oil column lateral surface out to be connect, and oil inlet
Column, oil column is parallel to each other out.
The forward and backward side at the position of nearly oil inlet end is connected with an oil inlet bracket respectively on the lateral surface of the oil inlet column
It connecing, the forward and backward side at the position of its nearly bottom end is connected with a fuel-displaced bracket respectively on the lateral surface of oil column out, and into
Oily bracket, fuel-displaced bracket are connected through radiator bearer with vehicle frame.
The oil inlet bracket includes oil inlet riser and oil inlet transverse slat, the outside of the medial surface and oil inlet column of the oil inlet riser
Face is connected, and the bottom end of oil inlet riser is vertical with one end of oil inlet transverse slat to be connect, and the other end of oil inlet transverse slat prolongs towards oil outlet
It stretches, offers oil inlet bracket holes on the other end of oil inlet transverse slat, the nearly oil inlet end setting in junction of oil inlet riser, oil inlet transverse slat,
And the length of oil inlet transverse slat is greater than the length of oil inlet riser；
The fuel-displaced bracket includes fuel-displaced riser and fuel-displaced transverse slat, the lateral surface phase of the medial surface and oil column out of the fuel-displaced riser
Connection, the bottom end of fuel-displaced riser is vertical with one end of fuel-displaced transverse slat to be connect, and the other end of fuel-displaced transverse slat is towards separate heat radiator body
Direction extends, and offers fuel-displaced bracket holes on the other end of fuel-displaced transverse slat, fuel-displaced riser, fuel-displaced transverse slat junction closely radiate this
The bottom surface of body is arranged.
The radiator bearer includes radiator fixed plate, bracket fixing plate and tiltedly holds reinforcing rib, the bracket fixing plate
One end be provided with downwardly open bracket notch and one plate of rack leg, two plate of rack leg positioned at bracket notch two sides, bracket
One plate of leg, two plate of rack leg are connected with vehicle frame, and the other end of bracket fixing plate is vertical with one end of radiator fixed plate to be connected
It connects, the top surface of the other end of radiator fixed plate is connected with oil inlet bracket, nearly bracket fixing plate, heat dissipation in radiator fixed plate
The top surface at the position of device fixed plate junction is connected with fuel-displaced bracket；The top rib side for tiltedly holding reinforcing rib is fixed with radiator
The bottom surface of plate is connected, and the muscle side for tiltedly holding reinforcing rib is connected with the medial surface of bracket fixing plate, muscle side, bracket fixing plate
Junction higher than bracket notch be arranged.
The radiator fixed plate is I-shaped structure, including interior scattered solid plate, in dissipate solid plate and outer scattered solid plate, and in dissipate it is solid
Plate is narrower than interior scattered solid plate, outer scattered solid plate setting；One end of the interior scattered solid plate is vertical with the top of bracket fixing plate to be connected, interior to dissipate
Solid plate is dissipated in the other end warp of solid plate to be connected with outer scattered solid plate, is offered in being connected with fuel-displaced bracket and is dissipated in interior scattered solid plate
Bracket holes offer the outer scattered bracket holes being connected with oil inlet bracket in outer scattered solid plate, offer in the outer side edges of outer scattered solid plate
Towards the outer scattered notch of outward opening, the both ends of the outer scattered notch, which are each provided with outside one, dissipates bracket holes；The one end on the top rib side with
The bottom surface of interior scattered solid plate is connected, and the bottom surface that the other end on top rib side dissipates solid plate in is connected, the friendship on top rib side, interior scattered solid plate
Connect the nearly muscle side setting in place.
Respectively radiate with one top of bending plate of two sides that solid plate is dissipated in described is connected, the bottom end of the bending plate that radiates to
Lower extension, top rib side are located between two heat dissipation bending plates.
One plate of rack leg, the diverted machine support of two plate of rack leg are connected with vehicle frame；The steering gear bracket includes
The one side of bracket inner plate surface, bracket outer plate surface and bracket side cambered surface, the bracket inner plate surface is connected with vehicle frame, bracket inner plate surface
Another side be connected through bracket transverse slat with the medial surface of bracket outer plate surface, lateral surface and the turning machine assembly phase of bracket outer plate surface
The junction of connection, one plate of rack leg, two plate of rack leg and bracket inner plate surface is located at the two sides of bracket transverse slat, bracket transverse slat
Top margin on be extended down to the inside of bracket notch；One end of nearly two plate of rack leg is through bracket side cambered surface and branch on the bracket inner plate surface
One end of nearly radiator fixed plate is connected in frame outer plate surface, and two plate of rack leg be located at one plate of rack leg, bracket side cambered surface it
Between.
Compared with prior art, the invention has the benefit that
1, in a kind of steering hydraulic oil cooling device for commercial vehicle of the present invention, the heat radiator body packet in steering oil temperature radiator
Oil inlet column, upper junction plate, lower connecting plate and oil column out are included, is provided between upper junction plate, lower connecting plate multiple mutually flat two-by-two
Capable heat dissipation laminate, in application, hydraulic oil successively from oil inlet column, heat dissipation laminate, go out oil column in flow through and mistake, hydraulic oil directly passes through
Heat dissipation laminate distributes heat to reduce oil temperature, and not only heat dissipation effect is preferable, but also flowing is unobstructed, will not interfere the normal of hydraulic oil
Flowing, meanwhile, between adjacent heat dissipation laminate there are laminate gap distributing in order to heat, be also conducive to when driving wind-force scattered
Flowing on hot face, to improve heat dissipation effect, in addition, between upper junction plate and similar heat dissipation laminate, lower connecting plate and
When being both provided with multiple cooling fins between similar heat dissipation laminate and between adjacent heat dissipation laminate, better heat-radiation effect.Cause
This, heat dissipation effect of the invention is preferable.
2, in a kind of steering hydraulic oil cooling device for commercial vehicle of the present invention, steering oil temperature radiator only includes oil inlet
End, heat radiator body, oil outlet these three components, wherein oil inlet end, oil outlet are responsible for liquid inlet and outlet pressure oil, with prior art phase
Than the quantity for relating to oil pipe being arranged on radiator is seldom, neither will increase installation difficulty, and it is under the overall leadership will not to increase entire steering system
The quantity of revolution or crooked route in road, to avoid the reduction of heat dissipation effect.Therefore, not only structure simplifies the present invention, but also
Heat dissipation effect is preferable.
3, in a kind of steering hydraulic oil cooling device for commercial vehicle of the present invention, the lateral surface and oil inlet bracket of oil inlet column
It is connected, the lateral surface of oil column is connected with fuel-displaced bracket out, and oil inlet bracket, fuel-displaced bracket are through radiator bearer and vehicle frame phase
Connection, the design can preferably adapt to radiate using oil inlet bracket, fuel-displaced bracket as the intermediary being connected with radiator bearer
The structure of device bracket, reduces the design difficulty of radiator bearer, moreover it is possible to avoid to the full extent radiator bearer to radiator into,
The influence of oil pipe line, it is ensured that running of hydraulic power oil it is unimpeded, conducive to the normal performance of heat sinking function, in addition, when oil inlet bracket, fuel-displaced
When bracket is all class L-type structure (i.e. riser and transverse slat form), structure design is simplified, manufacture difficulty is reduced.Therefore, this hair
Bright not only assembly difficulty is lower, but also simple structure, heat dissipation effect are preferable.
4, in a kind of steering hydraulic oil cooling device for commercial vehicle of the present invention, radiator bearer is class L-type structure, main
Including radiator fixed plate, bracket fixing plate and reinforcing rib tiltedly is held, radiator fixed plate is responsible for fixed heat sink, and bracket is fixed
Plate is responsible for connecting with vehicle frame script component, tiltedly holds reinforcing rib and then increases support strength, three components are cooperated, both be can ensure that
The installation site of steering oil temperature radiator smoothly to realize the purpose of enhancing heat dissipation effect, and is avoided that and remaining components
Interference reduces installation difficulty, moreover it is possible to which the firm supporting degree after ensuring to install avoids the larger shaking in, especially props up
The design of frame notch and its two sides rack leg one plate, two plate of rack leg, not only can ensure that installation after firmness, but also can conducive to
The connection of vehicle frame, reduces installation difficulty, also reduces the weight of bracket.Therefore, not only heat dissipation effect is preferable, is easy to by the present invention
Installation, and firmness is relatively strong, lighter in weight.
5, in a kind of steering hydraulic oil cooling device for commercial vehicle of the present invention, radiator fixed plate is I-shaped knot
Structure, including interior scattered solid plate, in dissipate solid plate and outer scattered solid plate, wherein interior scattered solid plate is responsible for the connection with vehicle frame, fuel-displaced bracket, outside
Dissipate solid plate be responsible for the connection of oil inlet bracket, in dissipate solid plate be responsible for supporting role and with the connection of tiltedly holding reinforcing rib so that this
Design can not only firmly support radiator, and the weight and occupied space of bracket can be reduced from the angle for simplifying structure,
Assembly difficulty is reduced, it, more can be into one when in addition, the two sides for dissipating solid plate in the middle are respectively radiated with one, the top of bending plate is connected
Step increases the integral strength of radiator bearer, avoids deforming.Therefore, the firmness that the present invention not only supports is stronger, but also weight
Relatively gently, occupied space is smaller.
6, in a kind of steering hydraulic oil cooling device for commercial vehicle of the present invention, one plate of rack leg, two plate of rack leg warp
Steering gear bracket is connected with vehicle frame, which, should so that the nearly turning machine assembly setting of steering oil temperature radiator in the present invention
Installation site, which comes out oil liquid one from turning machine assembly, to radiate, and extend the heat dissipation time, be conducive to improve radiating efficiency, and
And relative to oil tank, steering pump, turning machine assembly nearby more conducively arranges the steering oil temperature radiator added, will not both interfere to dissipate
The heat dissipation of hot device, will not interfere the normal operation of remaining components, even in addition, from the point of view of turning to pipeline, this hair
Only one oil inlet pipe of the steering oil temperature radiator of bright use and an oil outlet pipe, structure is simple, extension that will not be additional
The entire length for turning to pipeline, will not increase additional revolution or crooked route, both be conducive to installation, also be conducive to heat dissipation, especially
It is to be introduced directly on the steering low pressure line (i.e. No. three pipelines) between oil tank, turning machine assembly, pipeline trend is simple smooth,
Convenient for assembly, heat dissipation effect is preferable, to reduce the probability of hard steering appearance, improves steering system reliability of operation, protects
Demonstrate,prove traffic safety.Therefore, not only pipeline structure is simple, installation difficulty is lower by the present invention, but also installation site is preferable, heat dissipation effect
Preferably.
7, in a kind of steering hydraulic oil cooling device for commercial vehicle of the present invention, steering gear bracket is as radiator bearer
Connection intermediary between vehicle frame, can not only play the basic function of installation turning machine assembly, and be also equipped with stronger external
Ability can directly be docked with the external radiator bearer added, and function is more, and application value is larger, in addition, steering gear bracket master
It to include bracket inner plate surface, bracket outer plate surface and bracket side cambered surface, folder is at there is more gap between three face, and the design is not only
It can reduce the overall weight of bracket, and be conducive to heat dissipation, facilitate the performance of radiator function added.Therefore, of the invention
Not only applicable function is more, and sexual valence is relatively high, and heat dissipation effect is preferable, lighter in weight.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram that oil temperature radiator is turned in Fig. 1.
Fig. 3 is Fig. 2 in longitudinal cross-sectional view.
Fig. 4 is Fig. 2 in lateral cross-sectional view.
Fig. 5 is structural schematic diagram when having additional cooling fin in Fig. 4.
Fig. 6 is the structural schematic diagram of radiator bearer in Fig. 1.
Fig. 7 is the connection schematic diagram of Fig. 6 and steering gear bracket.
Structural schematic diagram when Fig. 8 is Fig. 7 side view.
Fig. 9 is the structural schematic diagram that the present invention is applied in steering system.
In figure: vehicle frame 1, turning machine assembly 2, steering reservoir 3, steering pump 4, steering oil temperature radiator 5, radiating surface 50, into
Oily end 51, inlet side oil pocket 511, heat radiator body 52, oil inlet bracket 521, fuel-displaced bracket 522, oil inlet riser 523, oil inlet transverse slat
524, oil inlet bracket holes 525, fuel-displaced riser 526, fuel-displaced transverse slat 527, fuel-displaced bracket holes 528, oil outlet 53, outlet oil pocket 531,
Oil inlet column 54, upper junction plate 55, lower connecting plate 56, goes out oil column 57, goes out oil column chamber 571, heat dissipation laminate 58, dissipates oil inlet column chamber 541
Hot oil road 581, heat dissipation seed oil road 582, laminate gap 583, plate plate gap 584, cooling fin 59, radiator bearer 6, radiator are solid
Fixed board 61, interior scattered solid plate 611, in dissipate solid plate 612, outer scattered solid plate 613, interior scattered bracket holes 614, outer scattered bracket holes 615, it is outer dissipate lack
Mouth 616, tiltedly holds reinforcing rib 63, top rib side 631, muscle side 632, muscle bevel edge 633, bracket notch 64, bracket at bracket fixing plate 62
One plate 641 of leg, two plate 642 of rack leg, heat dissipation bending plate 65, steering gear bracket 7, bracket inner plate surface 71, bracket outer plate surface 72, branch
It is managed after pipeline 821, two before frame side cambered surface 73,74, No. three pipelines 8 of bracket transverse slat, the pipeline 82, two of No.1 pipeline 81, two
84, No. three latter pipelines of pipeline after pipeline 83, three the first two pipeline 832, three of previous pipeline 831, three before road 822, three
841, two pipelines 842, tubing clamp 9 after No. three.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1 to Fig. 9, a kind of steering hydraulic oil cooling device for commercial vehicle, including steering oil temperature radiator 5 with
Radiator bearer 6, the steering oil temperature radiator 5 are connected through radiator bearer 6 with vehicle frame 1；
The steering oil temperature radiator 5 includes oil inlet end 51, heat radiator body 52 and oil outlet 53, the heat radiator body 52 include into
Oil column 54, upper junction plate 55, lower connecting plate 56 and oil column 57, the bottom end of the oil inlet column 54 are connected with the top of oil inlet end 51 out
It connects, the upper/lower terminal of the medial surface of oil inlet column 54 is respectively through upper junction plate 55, lower connecting plate 56 and the medial surface of oil column 57 out
Upper/lower terminal is correspondingly connected with, and the lateral surface of oil column 57 is connected with oil outlet 53 out, upper junction plate 55, lower connecting plate 56
Between be provided with multiple heat dissipation laminates 58 being parallel to each other two-by-two, the both ends of the heat dissipation laminate 58 inside with oil inlet column 54 respectively
Face, the medial surface for going out oil column 57 are connected, and the leading flank of all heat dissipation laminates 58 or trailing flank constitute radiating surface 50；
The inside of the heat dissipation laminate 58 offers heat radiation oil duct 581, and inlet side oil pocket 511, oil outlet are offered in oil inlet end 51
Outlet oil pocket 531 is offered in 53, oil inlet column chamber 541 is offered in oil inlet column 54, offers out oil column chamber in oil column 57 out
571, the inlet side oil pocket 511 is communicated with the bottom of oil inlet column chamber 541, and the side of oil inlet column chamber 541 through heat radiation oil duct 581 and goes out
The side of oil column chamber 571 communicates, and the other side of oil column chamber 571 is communicated with outlet oil pocket 531 out；The oil inlet column 54 goes out oil column
57 lateral surface is connected through radiator bearer 6 with vehicle frame 1.
The heat radiation oil duct 581 includes multiple heat dissipation seed oil roads 582 arranged side by side, heat dissipation seed oil road 582 and heat dissipation oil
Moving towards for road 581 is identical, and the width of heat radiation oil duct 581 is less than the width of heat dissipation laminate 58.
Between the upper junction plate 55 and similar heat dissipation laminate 58, lower connecting plate 56 and similar heat dissipation laminate 58 it
Between and adjacent heat dissipation laminate 58 between be both provided with multiple cooling fins 59, the both ends of the cooling fin 59 are in contact
Upper junction plate 55, lower connecting plate 56 or heat dissipation laminate 58 are vertically connected.
The oil inlet end 51 is coaxially disposed with oil inlet column 54, oil outlet 53 with the middle part of 57 lateral surface of oil column is vertical out connects
Connect, and oil inlet column 54, go out oil column 57 be parallel to each other.
On the lateral surface of the oil inlet column 54 the forward and backward side at the position of nearly oil inlet end 51 respectively with an oil inlet bracket
521 are connected, it is described go out oil column 57 lateral surface on its nearly bottom end position forward and backward side respectively with a fuel-displaced bracket
522 are connected, and oil inlet bracket 521, fuel-displaced bracket 522 are connected through radiator bearer 6 with vehicle frame 1.
The oil inlet bracket 521 includes oil inlet riser 523 and oil inlet transverse slat 524, the medial surface of the oil inlet riser 523 with
The lateral surface of oil inlet column 54 is connected, and the bottom end of oil inlet riser 523 is vertical with one end of oil inlet transverse slat 524 to be connect, oil inlet transverse slat
524 other end extends towards oil outlet 53, offers oil inlet bracket holes 525, oil inlet riser on the other end of oil inlet transverse slat 524
523, the nearly oil inlet end 51 in the junction of oil inlet transverse slat 524 is arranged, and the length of oil inlet transverse slat 524 is greater than the length of oil inlet riser 523
Degree；
The fuel-displaced bracket 522 includes fuel-displaced riser 526 and fuel-displaced transverse slat 527, the medial surface of the fuel-displaced riser 526 with it is fuel-displaced
The lateral surface of column 57 is connected, and the bottom end of fuel-displaced riser 526 is vertical with one end of fuel-displaced transverse slat 527 to be connect, fuel-displaced transverse slat 527
The other end extends towards the direction far from heat radiator body 52, offers fuel-displaced bracket holes 528 on the other end of fuel-displaced transverse slat 527, out
The bottom surface of the nearly heat radiator body 52 in junction of oily riser 526, fuel-displaced transverse slat 527 is arranged.
The radiator bearer 6 includes radiator fixed plate 61, bracket fixing plate 62 and tiltedly holds reinforcing rib 63, the bracket
One end of fixed plate 62 be provided with downwardly open bracket notch 64 and positioned at 64 two sides of bracket notch one plate 641 of rack leg,
Two plate 642 of rack leg, one plate 641 of rack leg, two plate 642 of rack leg are connected with vehicle frame 1, the other end of bracket fixing plate 62
Vertical with one end of radiator fixed plate 61 to connect, the top surface of the other end of radiator fixed plate 61 is connected with oil inlet bracket 521
Connect, nearly bracket fixing plate 62 in radiator fixed plate 61,61 junction of radiator fixed plate position top surface and fuel-displaced bracket
522 are connected；The top rib side 631 for tiltedly holding reinforcing rib 63 is connected with the bottom surface of radiator fixed plate 61, tiltedly holds reinforcing rib
63 muscle side 632 is connected with the medial surface of bracket fixing plate 62, muscle side 632, bracket fixing plate 62 junction be higher than
Bracket notch 64 is arranged.
The radiator fixed plate 61 is I-shaped structure, including interior scattered solid plate 611, in dissipate solid plate 612 and outer scattered solid plate
613, and in dissipate that solid plate 612 is narrower than interior scattered solid plate 611, outer scattered solid plate 613 is arranged；One end of the interior scattered solid plate 611 and bracket
The top of fixed plate 62 vertically connects, and dissipates solid plate 612 in the other end warp of interior scattered solid plate 611 and is connected with outer scattered solid plate 613, interior
Dissipate offered in solid plate 611 be connected with fuel-displaced bracket 522 in dissipate bracket holes 614, offer in outer scattered solid plate 613 and oil inlet
The outer scattered bracket holes 615 that bracket 521 is connected offer the outer scattered notch towards outward opening in the outer side edges of outer scattered solid plate 613
616, the both ends of the outer scattered notch 616, which are each provided with outside one, dissipates bracket holes 615；The one end on the top rib side 631 dissipates admittedly with interior
The bottom surface of plate 611 is connected, and the bottom surface that the other end on top rib side 631 dissipates solid plate 612 in is connected, and top rib side 631, interior dissipate are consolidated
The junction side Jin Jin 632 of plate 611 is arranged.
The two sides that solid plate 612 is dissipated in described are respectively connected with the top of a heat dissipation bending plate 65, and radiate bending plate 65
Bottom end extend downwardly, top rib side 631 is located between two heat dissipation bending plates 65.
One plate 641 of rack leg, the diverted machine support 7 of two plate of rack leg 642 are connected with vehicle frame 1；The turning machine
Bracket 7 includes bracket inner plate surface 71, bracket outer plate surface 72 and bracket side cambered surface 73, the one side and vehicle frame of the bracket inner plate surface 71
1 is connected, and the another side of bracket inner plate surface 71 is connected through bracket transverse slat 74 with the medial surface of bracket outer plate surface 72, bracket outside plate
The lateral surface in face 72 is connected with turning machine assembly 2, the company of one plate 641 of rack leg, rack leg two plate 642 and bracket inner plate surface 71
The place of connecing is located at the two sides of bracket transverse slat 74, and the inside of bracket notch 64 is extended down on the top margin of bracket transverse slat 74；The bracket
One end of nearly two plate 642 of rack leg is through radiator fixed plate 61 close in bracket side cambered surface 73 and bracket outer plate surface 72 on inner plate surface 71
One end be connected, and two plate 642 of rack leg is located between one plate 641 of rack leg, bracket side cambered surface 73.
The principle of the present invention is described as follows:
Referring to Fig. 1 to Fig. 9, when the present invention is applied to steering system, the oil outlet of steering reservoir 3 is through No.1 pipeline 81 and steering pump
4 oil inlet communicates, and the oil outlet of steering pump 4 is communicated through No. two pipelines 82 with the oil inlet of turning machine assembly 2, turning machine assembly
2 oil outlet is communicated through No. three pipelines 8 with the oil inlet of steering reservoir 3, when No. three pipelines 8 include No. three front tubes interconnected
After road 83 and No. three when pipeline 84, the oil outlet of turning machine assembly 2 is through the oil inlet of pipeline 83 and steering oil temperature radiator 5 before No. three
Mouth communicates, and the oil outlet of steering oil temperature radiator 5 pipeline 84 after No. three is communicated with the oil inlet of steering reservoir 3, turns to oil temperature
The bottom of radiator 5 is connected through radiator bearer 6 with steering gear bracket 7, and the diverted machine support 7 of turning machine assembly 2 and vehicle
Frame 1 is connected.The forward and backward side of the steering oil temperature radiator 5 is radiating surface 50, and the radiating surface 50 is relative to vehicle frame 1
Trend is in laterally setting, and radiating surface 50 is towards vehicle forward direction.
In addition, No. two pipelines 82 include pipeline 822 after pipeline 821 before No. two interconnected and No. two, steering pump 4 goes out
Hydraulic fluid port successively communicates after pipeline 822 with the oil inlet of turning machine assembly 2 after before No. two pipeline 821, two；Pipeline 83 before No. three
Including No. three interconnected previous pipelines 831 and No. three the first two pipelines 832, the oil outlet of turning machine assembly 2 is successively through No. three
It is communicated after 831, No. three the first two pipelines 832 of previous pipeline with the oil inlet of steering oil temperature radiator 5；Pipeline 84 includes phase after No. three
Two pipelines 842 after the latter pipeline 841 of No. three to connect and No. three, the oil outlet of steering oil temperature radiator 5 is successively after No. three
It is communicated after two pipelines 842 with the oil inlet of steering reservoir 3 after one pipeline 841, three.At this point, to have both anti-vibration and heat dissipation effect,
Make following design:
832, No. three latter pipelines 841 of the first two pipeline of pipeline 821, three are all rubber hose before the No.1 pipeline 81, two,
Two pipelines 842 are all metal tube after pipeline 822, three previous pipelines 831, three after described No. two.
The reinforcing rib 63 that tiltedly holds in the present invention is class triangular structure, including top rib side 631, muscle side 632 and muscle bevel edge
633, the angle between muscle bevel edge 633 and top rib side 631, muscle side 632 is acute angle.
Embodiment 1:
Referring to Fig. 1 to Fig. 9, a kind of steering hydraulic oil cooling device for commercial vehicle, including steering oil temperature radiator 5 and heat dissipation
Device bracket 6, the steering oil temperature radiator 5 are connected through radiator bearer 6 with vehicle frame 1；The steering oil temperature radiator 5 includes
Oil inlet end 51, heat radiator body 52 and oil outlet 53, the heat radiator body 52 include oil inlet column 54, upper junction plate 55, lower connecting plate
56 are connected with oil column 57, the bottom end of the oil inlet column 54 out with the top of oil inlet end 51, the medial surface of oil inlet column 54 it is upper and lower
Both ends are correspondingly connected with through upper junction plate 55, lower connecting plate 56 and the upper/lower terminal of the medial surface of oil column 57 out respectively, fuel-displaced
The lateral surface of column 57 is connected with oil outlet 53, is provided with and multiple is parallel to each other between upper junction plate 55, lower connecting plate 56 two-by-two
Heat dissipation laminate 58, the both ends of the heat dissipation laminate 58 respectively with the medial surface of oil inlet column 54, go out oil column 57 medial surface be connected,
The leading flank of all heat dissipation laminates 58 or trailing flank constitute radiating surface 50；The inside of the heat dissipation laminate 58 offers heat dissipation oil
Road 581 offers inlet side oil pocket 511 in oil inlet end 51, outlet oil pocket 531 is offered in oil outlet 53, is opened up in oil inlet column 54
There is oil inlet column chamber 541, offers out oil column chamber 571, the bottom of the inlet side oil pocket 511 and oil inlet column chamber 541 in oil column 57 out
It communicates, the side of oil inlet column chamber 541 is communicated through heat radiation oil duct 581 with the side of oil column chamber 571 out, and oil column chamber 571 is another out
Side is communicated with outlet oil pocket 531；The oil inlet column 54, the lateral surface for going out oil column 57 are connected through radiator bearer 6 with vehicle frame 1.
It is preferred that heat radiation oil duct 581 includes multiple heat dissipation seed oil roads 582 arranged side by side, heat dissipation seed oil road 582 is walked with heat radiation oil duct 581
To identical, and the width of heat radiation oil duct 581 is less than the width of heat dissipation laminate 58.
Embodiment 2:
Basic content with embodiment 1, the difference is that:
Between the upper junction plate 55 and similar heat dissipation laminate 58, between lower connecting plate 56 and similar heat dissipation laminate 58, with
And multiple cooling fins 59 are both provided between adjacent heat dissipation laminate 58, the upper connection in contact of the both ends of the cooling fin 59
Plate 55, lower connecting plate 56 or heat dissipation laminate 58 are vertically connected.
Embodiment 3:
Basic content with embodiment 1, the difference is that:
On the lateral surface of the oil inlet column 54 the forward and backward side at the position of nearly oil inlet end 51 respectively with 521 phase of oil inlet bracket
It connects, the forward and backward side at the position of its nearly bottom end is connected with a fuel-displaced bracket 522 respectively on the lateral surface of oil column 57 out
It connects, and oil inlet bracket 521, fuel-displaced bracket 522 are connected through radiator bearer 6 with vehicle frame 1.
It is preferred that oil inlet bracket 521 includes oil inlet riser 523 and oil inlet transverse slat 524, the medial surface of the oil inlet riser 523 with
The lateral surface of oil inlet column 54 is connected, and the bottom end of oil inlet riser 523 is vertical with one end of oil inlet transverse slat 524 to be connect, oil inlet transverse slat
524 other end extends towards oil outlet 53, offers oil inlet bracket holes 525, oil inlet riser on the other end of oil inlet transverse slat 524
523, the nearly oil inlet end 51 in the junction of oil inlet transverse slat 524 is arranged, and the length of oil inlet transverse slat 524 is greater than the length of oil inlet riser 523
Degree；It is preferred that fuel-displaced bracket 522 includes fuel-displaced riser 526 and fuel-displaced transverse slat 527, the medial surface of the fuel-displaced riser 526 with it is fuel-displaced
The lateral surface of column 57 is connected, and the bottom end of fuel-displaced riser 526 is vertical with one end of fuel-displaced transverse slat 527 to be connect, fuel-displaced transverse slat 527
The other end extends towards the direction far from heat radiator body 52, offers fuel-displaced bracket holes 528 on the other end of fuel-displaced transverse slat 527, out
The bottom surface of the nearly heat radiator body 52 in junction of oily riser 526, fuel-displaced transverse slat 527 is arranged.
Embodiment 4:
Basic content with embodiment 3, the difference is that:
The radiator bearer 6 includes radiator fixed plate 61, bracket fixing plate 62 and tiltedly holds reinforcing rib 63, and the bracket is fixed
One end of plate 62 is provided with downwardly open bracket notch 64 and one plate 641 of rack leg, bracket positioned at 64 two sides of bracket notch
Two plate 642 of leg, one plate 641 of rack leg, two plate 642 of rack leg are connected with vehicle frame 1, the other end of bracket fixing plate 62 and dissipate
One end of hot device fixed plate 61 vertically connects, and the top surface of the other end of radiator fixed plate 61 is connected with oil inlet bracket 521, dissipates
Nearly bracket fixing plate 62 in hot device fixed plate 61,61 junction of radiator fixed plate position top surface and fuel-displaced 522 phase of bracket
Connection；The top rib side 631 for tiltedly holding reinforcing rib 63 is connected with the bottom surface of radiator fixed plate 61, tiltedly holds the muscle of reinforcing rib 63
Side 632 is connected with the medial surface of bracket fixing plate 62, and muscle side 632, the junction of bracket fixing plate 62 are scarce higher than bracket
Mouth 64 is arranged.
Embodiment 5:
Basic content with embodiment 4, the difference is that:
The radiator fixed plate 61 is I-shaped structure, including interior scattered solid plate 611, in dissipate solid plate 612 and outer scattered solid plate 613,
Solid plate 612 is dissipated in and is narrower than interior scattered solid plate 611, the outer scattered setting of solid plate 613；One end of the interior scattered solid plate 611 is fixed with bracket
The top of plate 62 vertically connects, and dissipates solid plate 612 in the other end warp of interior scattered solid plate 611 and is connected with outer scattered solid plate 613, interior to dissipate admittedly
It is offered on plate 611 and dissipates bracket holes 614 in being connected with fuel-displaced bracket 522, offered and oil inlet bracket in outer scattered solid plate 613
The 521 outer scattered bracket holes 615 being connected offer the outer scattered notch 616 towards outward opening in the outer side edges of outer scattered solid plate 613, should
The both ends of outer scattered notch 616, which are each provided with outside one, dissipates bracket holes 615；The one end on the top rib side 631 and interior scattered solid plate 611
Bottom surface is connected, and the bottom surface that the other end on top rib side 631 dissipates solid plate 612 in is connected, top rib side 631, interior scattered solid plate 611
The junction side Jin Jin 632 is arranged.The two sides that solid plate 612 is dissipated in it is preferred that are respectively connected with the top of a heat dissipation bending plate 65
It connects, the bottom end of heat dissipation bending plate 65 extends downwardly, and top rib side 631 is located between two heat dissipation bending plates 65.
Embodiment 6:
Basic content with embodiment 4, the difference is that:
One plate 641 of rack leg, the diverted machine support 7 of two plate of rack leg 642 are connected with vehicle frame 1；The steering gear bracket 7
Including bracket inner plate surface 71, bracket outer plate surface 72 and bracket side cambered surface 73, the one side of the bracket inner plate surface 71 is connected with vehicle frame 1
It connects, the another side of bracket inner plate surface 71 is connected through bracket transverse slat 74 with the medial surface of bracket outer plate surface 72, bracket outer plate surface 72
Lateral surface be connected with turning machine assembly 2, the junction of one plate 641 of rack leg, rack leg two plates 642 and bracket inner plate surface 71
The two sides of bracket transverse slat 74 are located at, the inside of bracket notch 64 is extended down on the top margin of bracket transverse slat 74；The bracket inner panel
One end of nearly two plate 642 of rack leg is through bracket side cambered surface 73 and the one of radiator fixed plate 61 close in bracket outer plate surface 72 on face 71
End is connected, and two plate 642 of rack leg is located between one plate 641 of rack leg, bracket side cambered surface 73.
The foregoing is merely better embodiment of the invention, protection scope of the present invention is not with above embodiment
Limit, as long as those of ordinary skill in the art's equivalent modification or variation made by disclosure according to the present invention, should all be included in power
In the protection scope recorded in sharp claim.
Claims (10)
1. a kind of steering hydraulic oil cooling device for commercial vehicle, including steering oil temperature radiator (5) and radiator bearer
(6), the steering oil temperature radiator (5) is connected through radiator bearer (6) with vehicle frame (1), it is characterised in that:
The steering oil temperature radiator (5) includes oil inlet end (51), heat radiator body (52) and oil outlet (53), the heat radiator body
It (52) include oil inlet column (54), upper junction plate (55), lower connecting plate (56) and oil column (57) out, the bottom end of the oil inlet column (54)
It is connected with the top of oil inlet end (51), the upper/lower terminal of the medial surface of oil inlet column (54) is respectively through upper junction plate (55), lower company
Fishplate bar (56) and the upper/lower terminal of the medial surface of oil column out (57) are correspondingly connected with, out the lateral surface of oil column (57) with it is fuel-displaced
End (53) is connected, and multiple heat dissipation laminates being parallel to each other two-by-two are provided between upper junction plate (55), lower connecting plate (56)
(58), the both ends of the heat dissipation laminate (58) respectively with the medial surface of oil inlet column (54), go out oil column (57) medial surface be connected, institute
The leading flank of some heat dissipation laminates (58) or trailing flank constitute radiating surface (50)；
The inside of heat dissipation laminate (58) offers heat radiation oil duct (581), offers inlet side oil pocket in oil inlet end (51)
(511), it is offered outlet oil pocket (531) in oil outlet (53), offers oil inlet column chamber (541) in oil inlet column (54), out oil column
(57) it is offered out oil column chamber (571) in, the inlet side oil pocket (511) communicates with the bottom of oil inlet column chamber (541), oil inlet column chamber
(541) side is communicated through heat radiation oil duct (581) with the side of oil column chamber (571) out, out the other side of oil column chamber (571) with go out
End oil pocket (531) communicates；The oil inlet column (54), the lateral surface for going out oil column (57) are connected through radiator bearer (6) with vehicle frame (1)
It connects.
2. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 1, it is characterised in that: described to dissipate
Hot oil road (581) includes multiple heat dissipation seed oil roads (582) arranged side by side, heat dissipation seed oil road (582) and heat radiation oil duct (581)
Move towards identical, and the width of heat radiation oil duct (581) is less than the width of heat dissipation laminate (58).
3. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 1 or 2, it is characterised in that: institute
It states between upper junction plate (55) and similar heat dissipation laminate (58), between lower connecting plate (56) and similar heat dissipation laminate (58),
And multiple cooling fins (59) are both provided between adjacent heat dissipation laminate (58), the both ends of the cooling fin (59) contact
Upper junction plate (55), lower connecting plate (56) or heat dissipation laminate (58) vertically connected.
4. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 1 or 2, it is characterised in that: institute
Oil inlet end (51) and oil inlet column (54) to be stated to be coaxially disposed, oil outlet (53) is vertical with the middle part of oil column out (57) lateral surface to be connect,
And oil inlet column (54), go out oil column (57) be parallel to each other.
5. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 1 or 2, it is characterised in that: institute
State the forward and backward side at the position of nearly oil inlet end (51) on the lateral surface of oil inlet column (54) respectively with oil inlet bracket (521) phase
Connection, it is described go out oil column (57) lateral surface on its nearly bottom end position forward and backward side respectively with a fuel-displaced bracket (522)
It is connected, and oil inlet bracket (521), fuel-displaced bracket (522) are connected through radiator bearer (6) with vehicle frame (1).
6. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 5, it is characterised in that:
The oil inlet bracket (521) includes oil inlet riser (523) and oil inlet transverse slat (524), the inside of the oil inlet riser (523)
Face is connected with the lateral surface of oil inlet column (54), and the bottom end of oil inlet riser (523) is vertical with one end of oil inlet transverse slat (524) to be connected
It connects, the other end of oil inlet transverse slat (524) extends towards oil outlet (53), offers oil inlet on the other end of oil inlet transverse slat (524)
Bracket holes (525), the nearly oil inlet end in junction (51) setting of oil inlet riser (523), oil inlet transverse slat (524), and oil inlet transverse slat
(524) length is greater than the length of oil inlet riser (523)；
The fuel-displaced bracket (522) includes fuel-displaced riser (526) and fuel-displaced transverse slat (527), the inside of the fuel-displaced riser (526)
Face is connected with the lateral surface of oil column out (57), and the bottom end of fuel-displaced riser (526) is vertical with one end of fuel-displaced transverse slat (527) to be connected
It connects, the other end of fuel-displaced transverse slat (527) extends towards the direction far from heat radiator body (52), on the other end of fuel-displaced transverse slat (527)
Offer fuel-displaced bracket holes (528), fuel-displaced riser (526), fuel-displaced transverse slat (527) the nearly heat radiator body in junction (52) bottom surface
Setting.
7. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 5, it is characterised in that: described to dissipate
Hot device bracket (6) includes radiator fixed plate (61), bracket fixing plate (62) and tiltedly holds reinforcing rib (63), the bracket fixing plate
(62) one end is provided with downwardly open bracket notch (64) and is located at one plate of rack leg of bracket notch (64) two sides
(641), two plate of rack leg (642), one plate of rack leg (641), two plate of rack leg (642) are connected with vehicle frame (1), and bracket is solid
The other end of fixed board (62) is vertical with one end of radiator fixed plate (61) to be connect, the top of the other end of radiator fixed plate (61)
Face is connected with oil inlet bracket (521), and nearly bracket fixing plate (62), radiator fixed plate (61) are handed in radiator fixed plate (61)
The top surface at the position at the place of connecing is connected with fuel-displaced bracket (522)；Top rib side (631) and the radiator for tiltedly holding reinforcing rib (63)
The bottom surface of fixed plate (61) is connected, and tiltedly holds muscle side (632) and the medial surface phase of bracket fixing plate (62) of reinforcing rib (63)
The junction of connection, muscle side (632), bracket fixing plate (62) is arranged higher than bracket notch (64).
8. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 7, it is characterised in that: described to dissipate
Hot device fixed plate (61) is I-shaped structure, including interior scattered solid plate (611), in dissipate solid plate (612) and outer scattered solid plate (613), and
In dissipate solid plate (612) and be narrower than interior scattered solid plate (611), the setting of outer scattered solid plate (613)；One end of the interior scattered solid plate (611) and branch
The top of frame fixed plate (62) vertically connects, and dissipates solid plate (612) and outer scattered solid plate in the other end warp of interior scattered solid plate (611)
(613) it is connected, the interior scattered bracket holes (614) being connected with fuel-displaced bracket (522) is offered on interior scattered solid plate (611), it is outer to dissipate
The outer scattered bracket holes (615) being connected with oil inlet bracket (521), the outer side edges of outer scattered solid plate (613) are offered in solid plate (613)
On offer outer scattered notch (616) towards outward opening, the both ends of the outer scattered notch (616), which are each provided with outside one, dissipates bracket holes
(615)；One end of the top rib side (631) is connected with the bottom surface of interior scattered solid plate (611), the other end of top rib side (631) with
In dissipate the bottom surface of solid plate (612) and be connected, the setting of the junction side Jin Jin (632) of top rib side (631), interior scattered solid plate (611).
9. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 7, it is characterised in that: in described
Dissipate solid plate (612) two sides respectively with one radiate bending plate (65) top be connected, radiate bending plate (65) bottom end to
Lower extension, top rib side (631) are located between two heat dissipation bending plates (65).
10. a kind of steering hydraulic oil cooling device for commercial vehicle according to claim 7, it is characterised in that: described
One plate of rack leg (641), two plate of rack leg (642) diverted machine support (7) are connected with vehicle frame (1)；The steering gear bracket
It (7) include bracket inner plate surface (71), bracket outer plate surface (72) and bracket side cambered surface (73), the one side of the bracket inner plate surface (71)
It is connected with vehicle frame (1), medial surface of the another side of bracket inner plate surface (71) through bracket transverse slat (74) Yu bracket outer plate surface (72)
It is connected, the lateral surface of bracket outer plate surface (72) is connected with turning machine assembly (2), one plate of rack leg (641), two plate of rack leg
(642) two sides of bracket transverse slat (74) are located at the junction of bracket inner plate surface (71), on the top margin of bracket transverse slat (74)
It is extended down to the inside of bracket notch (64)；One end of nearly two plate of rack leg (642) is through bracket side arc on the bracket inner plate surface (71)
Face (73) is connected with one end of radiator fixed plate (61) close on bracket outer plate surface (72), and two plate of rack leg (642) is located at
Between one plate of rack leg (641), bracket side cambered surface (73).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419999.8A CN109436087B (en) | 2018-11-26 | 2018-11-26 | Steering hydraulic oil cooling device for commercial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419999.8A CN109436087B (en) | 2018-11-26 | 2018-11-26 | Steering hydraulic oil cooling device for commercial vehicle |
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| CN109436087A true CN109436087A (en) | 2019-03-08 |
| CN109436087B CN109436087B (en) | 2023-10-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110667697A (en) * | 2019-09-12 | 2020-01-10 | 东风商用车有限公司 | Arrangement structure of heat dissipation steering system |
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| CN109436087B (en) | 2023-10-10 |
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