CN102275481B - Oil-gas suspension mechanism and engineering vehicle with suspension mechanism - Google Patents
Oil-gas suspension mechanism and engineering vehicle with suspension mechanism Download PDFInfo
- Publication number
- CN102275481B CN102275481B CN 201110159432 CN201110159432A CN102275481B CN 102275481 B CN102275481 B CN 102275481B CN 201110159432 CN201110159432 CN 201110159432 CN 201110159432 A CN201110159432 A CN 201110159432A CN 102275481 B CN102275481 B CN 102275481B
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- oil
- ball pivot
- suspension mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
- B60G13/003—Arrangements for attachment of dampers characterised by the mounting on the vehicle body or chassis of the damper unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/001—Arrangements for attachment of dampers
- B60G13/005—Arrangements for attachment of dampers characterised by the mounting on the axle or suspension arm of the damper unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/24—Fluid damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/128—Damper mount on vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/129—Damper mount on wheel suspension or knuckle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/41—Dampers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides an oil-gas suspension mechanism and an engineering vehicle with the suspension mechanism. The oil-gas suspension mechanism comprises a spherical hinge seat, a connecting part and a suspension cylinder, wherein the connecting part is provided with an internal spherical surface and used for connecting with a frame, and the suspension cylinder is arranged on the spherical hinge seat; the middle part of a cylinder body of the suspension cylinder is provided with a spherical hinge part in a spherical bulged shape, and the spherical hinge part is matched with the internal spherical surface of the spherical hinge seat so as to form a hinged mechanism; and an extending end of a piston rod of the suspension cylinder is provided with a hinged part hinged with an axle. The suspension cylinder of the oil-gas suspension mechanism provided by the invention is connected with the frame by the spherical hinge seat arranged at the middle part of the cylinder body, so that an upper connecting point of the suspension cylinder can be lowered, and then the height of a whole vehicle can be effectively reduced, the centre of gravity of the vehicle can be lowered, and the stability of the whole vehicle can be increased.
Description
Technical field
The present invention relates to the vehicle suspension system field, especially, relate to a kind of oil-gas suspension mechanism and have the engineering truck of this hitch.
Background technology
For general oil cylinder, in order to allow oil cylinder swing within the specific limits, in oil cylinder two ends employing ball pivot or universal-joint, ball pivot or the effect of universal-joint bearing radial force.As the oleo-pneumatic suspension oil cylinder, it is for connecting the shock absorber of vehicle bridge and vehicle frame, and effect is that the impact of facing vehicle bridge when alleviating running car is delivered to vehicle frame, increases the traveling comfort of car load.Simultaneously, for preventing too much vibration, be added with damping hole in oleo-pneumatic suspension, with damped vibration rapidly.
As shown in Figure 1, the mounting means of oleo-pneumatic suspension oil cylinder commonly used is that bearing pin is installed, be that the hanging oil cylinder upper/lower terminal is respectively arranged with bulb 1 and lower bulb 2, leave simultaneously a bearing on vehicle frame and vehicle bridge, the bearing pin that oleo-pneumatic suspension oil cylinder upper/lower terminal passes through separately respectively is connected with vehicle bridge with vehicle frame.Adopt the oleo-pneumatic suspension oil cylinder of this structure, it is connected hinge or universal-joint, stressed is diametral load, the load of hinge or universal-joint is had relatively high expectations, and, connect the two ends that the joint is arranged in oil cylinder, limited to a certain extent the layout of oil cylinder.In order to reduce the car load center of gravity, on oil cylinder, attachment point need to be arranged in the vehicle frame upper end as far as possible, increases design difficulty.Simultaneously, oil cylinder requires to be arranged in vehicle frame both sides,, need to carry out larger change to vehicle frame and could arrange the suspension oil cylinder during greater than vehicle bridge oil cylinder attachment point width when frame width.
Therefore, be necessary to provide a kind of and can effectively reduce the car load height, increase whole vehicle stability, and mounting means flexibly and be easy to install the oleo-pneumatic suspension oil cylinder mechanism.
Summary of the invention
The engineering truck that the object of the invention is to provide a kind of oil-gas suspension mechanism and has this hitch, with the hydro-pneumatic suspension system that solves existing engineering truck during with the use of twins vehicle bridge coupling, because spacing between vehicle bridge tire and vehicle frame is little, the technical matters that the oleo-pneumatic suspension oil cylinder is difficult to arrange.
For achieving the above object, according to an aspect of the present invention, provide a kind of oil-gas suspension mechanism, having comprised: ball pivot seat, the connecting portion that has Internal Spherical Surface and be used for being connected with vehicle frame; Hanging oil cylinder is arranged on the ball pivot seat, and the middle part of the cylinder body of hanging oil cylinder has the ball pivot section of protrusion spherical in shape, and ball pivot section matches to consist of linkwork with the Internal Spherical Surface of ball pivot seat; The external part of the piston rod of hanging oil cylinder has the articulated section hinged with vehicle bridge.
Further, the ball pivot seat comprises the first half free bearings and the second half free bearings of mutual fastening, and connecting portion is arranged on the first half free bearings or the second half free bearings.
Further, be respectively arranged with the first docking section and the second docking section on the first half free bearings and the second half free bearings, be provided with the connecting screw hole that cooperatively interacts on the first docking section and the second docking section.
Further, the maximum cross-section of the along continuous straight runs of the interface of the first half free bearings and the second half free bearings and ball pivot section is coplanar, the first docking section is the first gimbal panel that is arranged at the first half free bearing peripheries, and the second docking section is the second gimbal panel that is arranged at the second half free bearing peripheries.
Further, comprise a plurality of the first screws that arrange equally spacedly along the first circumference on the first gimbal panel, comprise a plurality of the second screws that arrange equally spacedly along the second circumference on the second gimbal panel, wherein, the first circumference and the coaxial same radius of the second circumference, and the quantity of the first screw and the second screw is all identical with radius.
Further, the periphery of the first gimbal panel or the second gimbal panel arranges the outward extending ring portion of along continuous straight runs, the external diameter of ring portion to form connecting portion, is provided with the 3rd along the circumferential direction uniform screw greater than the external diameter of the gimbal panel relative with it on connecting portion.
Further, the inboard of ball pivot seat is provided with the oil storage annular groove, and the arranged outside of ball pivot seat has the filler port that is communicated with and points to the center of ball pivot seat with the oil storage annular groove, is provided with the oiling plug screw in described filler port.
Further, ball pivot section along Boring mill to the cornerite radian greater than the ball pivot seat along Boring mill to the cornerite radian.
Further, be provided with telescopic dust protecting cap between the lower end of the articulated section of piston rod and cylinder body.
According to a further aspect in the invention, also provide a kind of engineering truck, be connected by above-mentioned oil-gas suspension mechanism between the vehicle frame of this project vehicle and vehicle bridge.
The present invention has following beneficial effect:
Hanging oil cylinder is connected with vehicle frame by the ball pivot seat that is arranged on cylinder body middle part, the upper point of connection of hanging oil cylinder is reduced, and then can effectively reduce the car load height, lower the center of gravity, and the increase whole vehicle stability; In addition, because hanging oil cylinder is arranged on bottom of frame, but not the vehicle frame side, thereby can actv. avoid causing to install due to vehicle frame side and tire pitch deficiency the problem of hanging oil cylinder.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is existing oleo-pneumatic suspension cylinder structure schematic diagram;
Fig. 2 is the mounting structure schematic diagram of oil-gas suspension mechanism on vehicle of the preferred embodiment of the present invention;
Fig. 3 is the cylinder body cross-sectional view of the preferred embodiment of the present invention;
Fig. 4 is the hanging oil cylinder of the preferred embodiment of the present invention and the unitized construction schematic diagram of ball pivot seat;
Fig. 5 is the first half free bearings of the preferred embodiment of the present invention and the plan structure signal of the first docking section;
Fig. 6 be the preferred embodiment of the present invention the second half free bearings, the second docking section and connecting portion look up structural representation;
Fig. 7 is the cross-sectional view of the first half free bearings and the second half free bearings of the preferred embodiment of the present invention; And
Fig. 8 is the hanging oil cylinder pendulum angle schematic diagram of the preferred embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As shown in Figures 2 and 3, according to an aspect of the present invention, provide a kind of oil-gas suspension mechanism, this oil-gas suspension mechanism comprises hanging oil cylinder, and the middle part of the cylinder body 11 of hanging oil cylinder has the ball pivot 11a of section of protrusion spherical in shape.Correspondingly, be provided with ball pivot seat 30 on the lower shoe 20 of vehicle frame, the periphery of the inside face of this ball pivot seat 30 and the ball pivot 11a of section is complementary, like this, ball pivot section can be arranged in the ball pivot seat 30 that the shape with the ball pivot 11a of section adapts, so that the ball pivot 11a of section and ball pivot seat 30 consist of linkwork, and then make cylinder body 11 swingable take ball pivot seat 30 as supporting base.Be provided with the connecting portion that is connected for the lower shoe 20 of vehicle frame on ball pivot seat 30; The external part of the piston rod 13 of hanging oil cylinder has the articulated section 13a hinged with vehicle bridge 40.
Dismounting for the ease of ball pivot seat 30, ball pivot seat 30 can comprise the first half free bearings 31 and the second half free bearings 32 of mutual fastening, the connecting portion that is used for being connected with the lower shoe 20 of vehicle frame can be arranged on the first half free bearings 31, also can be arranged on the second half free bearings 32.
As shown in Figure 4, for the first half free bearings 31 and the second half free bearings 32 can be snapped together, and can adapt to impact in the Vehicle Driving Cycle process, be respectively arranged with on the first docking section 311 and 321, the first docking sections 311, the second docking section and the second docking section 321 on first half free bearings 31 and the second half free bearings 32 and be provided with the connecting screw hole that cooperatively interacts.When ball pivot seat 30 is installed, the first half free bearings 31 and the second half free bearings 32 are set on the ball pivot 11a of section of cylinder body 11, then with the connecting screw hole that cooperatively interacts on the first docking section 311 and the second docking section 321 alignment, utilize at last bolt that the first half free bearings 31 and the second half free bearings 32 are snapped together.
The first half free bearings 31 and the second half free bearings 32 can snap together by along continuous straight runs, also can vertically snap together.Preferably, the first half free bearings 31 and the second half free bearing 32 along continuous straight runs snap together, that is to say, the maximum cross-section of the interface of the first half free bearings 31 and the second half free bearings 32 and the along continuous straight runs of the ball pivot 11a of section is coplanar, the first docking section 311 is for being arranged at the first gimbal panel of the first half free bearing 31 peripheries, and the second docking section 321 is for being arranged at the second gimbal panel of the second half free bearing 32 peripheries.That is to say, the first half free bearings 31 are passed down through from the upper end of cylinder body 11, and the second half free bearings 32 are upward through from the lower end of cylinder body 11 with the first half free bearings 31 and fasten.
As shown in Figure 5 and Figure 6, for the first half free bearings 31 and the second half free bearings 32 can closely be fastened, and can bear various impacts in the Vehicle Driving Cycle process, can on the first gimbal panel (the first docking section 311) and the second gimbal panel (the second docking section 321), many tapped bore to cooperatively interacting be set, then carry out fastening with a plurality of bolts.Preferably, can be provided with equally spacedly a plurality of the first screws 313 along the first circumference on the first gimbal panel, be provided with equally spacedly a plurality of the second screws 323 along the second circumference on the second gimbal panel, wherein, the coaxial same radius of the first circumference and the second circumference, quantity and the radius of the first screw 313 and the second screw 323 are all identical.
In order to save installing space, simplify the structure of oil-gas suspension mechanism, the periphery of the first gimbal panel or the second gimbal panel arranges the outward extending ring portion of along continuous straight runs, the external diameter of ring portion greater than the external diameter of the gimbal panel relative with it to form described connecting portion.Preferably, the connecting portion that is used for being connected with the lower shoe 20 of vehicle frame can be the 3rd gimbal panel 324 that radially outward stretches out along the second gimbal panel, and the external diameter of the 3rd gimbal panel 324 is greater than the external diameter of the first gimbal panel, so that the 3rd gimbal panel 324 can directly be connected with the lower shoe 20 of vehicle frame, and the first gimbal panel can be clipped in the middle.A plurality of the 3rd screw 325, the three screws 325 of along the circumferential direction equidistantly arranging can be set on the 3rd gimbal panel 324 can be used for realization is connected ball pivot seat 30 with the lower shoe 20 of vehicle frame purpose.
In fact, the panel that the 3rd gimbal panel 324 and the second gimbal panel are integrated does not have obvious demarcation line, but in order to distinguish, adopt dotted line that the 3rd gimbal panel 324 and the second gimbal panel area are separated in Fig. 6, only for the ease of understanding.
As shown in Figure 7, can produce relative motion between the ball pivot 11a of section due to ball pivot seat 30 and cylinder body 11, in order to improve the lubricity between ball pivot seat 30 and the ball pivot 11a of section, the inboard of ball pivot seat 30 is provided with oil storage annular groove 34, the arranged outside of ball pivot seat 30 has the filler port 35 that is communicated with and points to the center of ball pivot seat 30 with oil storage annular groove 34, and is provided with oiling plug screw 36 in filler port 35.
When car load travels, there is relative motion between vehicle bridge 40 and vehicle frame, therefore, the design of oil cylinder should be able to be satisfied the needs of this relative motion, that is to say, the amplitude of fluctuation of cylinder body 11 take ball pivot seat 30 as a spot wobble need to decide according to the size of car load design and the carrying capacity of requirement, namely will satisfy the car load requirement.
As shown in Figure 8, interfere between cylinder body 11 in service and the first half free bearings 31 and the second half free bearings 32, the ball pivot 11a of section along the axial cornerite radian of cylinder body 11 greater than ball pivot seat 30 along the axial cornerite radian of cylinder body 11.Also can say, the two ends of the 11a of ball pivot section are reserved with the reservation arc section that is not covered by ball pivot seat 30, the arc length of reservation arc section becomes large greatly with the change of the full swing angle of cylinder body 11, that is to say, can change according to the variation of the full swing angle of the cylinder body 11 of hanging oil cylinder the arc length of the reservation arc section of the ball pivot 11a of section.Changing an angle sees, (Φ 1 also can to utilize formula α≤min, Φ 2) represent, wherein, α is the maximum pendulum angle of hanging oil cylinder, angle Φ 1 and angle Φ 2 are respectively the corresponding angle of reservation arc section of the top and bottom of the ball pivot 11a of section, if Φ 1, Φ 2 are less than the required maximum pendulum angle α of hanging oil cylinder, should increase ball pivot seat 30 top and bottom reservation arc section length (in other words, should reduce the cornerite arc length of the first half free bearings 31 and the second half free bearings 32, and also want to satisfy the force request of ball pivot seat 30 when reducing the cornerite arc length).
In order to prevent that dust from entering in cylinder body 11 by the fore and aft motion with piston rod 13, can arrange between the lower end of the articulated section of piston rod 13 13a and cylinder body 11 telescopic, have an elastomeric dust protecting cap 50.
According to another aspect of the present invention, also provide a kind of engineering truck, can connect by above-mentioned oil-gas suspension mechanism between the vehicle frame of this project vehicle and vehicle bridge.The lower end of hanging oil cylinder and the connection mode of vehicle bridge are constant, and the point of connection of upper end moves to the midway location of oil cylinder.Oil cylinder is with bolts with being connected of other parts, and after oil cylinder installed, the upper end can be hidden in frame box inside, saved the height on car load chassis.
Hanging oil cylinder can be arranged in the inside of frame box, has effectively utilized the car load space, is beneficial to the layout of other parts, simultaneously due in casing, can prevent to a certain extent that dust is to the pollution of oil cylinder.Cylinder pipe can be arranged from box house, makes car load more attractive in appearance.
When master layout, frame width adopts oil cylinder hitch provided by the invention the most suitable during greater than the width of vehicle bridge upper cylinder mounting bracket.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. an oil-gas suspension mechanism, is characterized in that, comprising:
Ball pivot seat (30), the connecting portion that has Internal Spherical Surface and be used for being connected with vehicle frame;
Hanging oil cylinder is arranged on described ball pivot seat (30), and the middle part of the cylinder body of described hanging oil cylinder (11) has the ball pivot section (11a) of protrusion spherical in shape, described ball pivot section (11a) the formation linkwork that matches with the Internal Spherical Surface of described ball pivot seat (30);
Described ball pivot seat (30) comprises the first half free bearings (31) and the second half free bearings (32) of mutual fastening, described the first half free bearings (31) are passed down through from the upper end of described cylinder body (11), described the second half free bearings (32) are upward through from the lower end of described cylinder body (11), be respectively arranged with the first docking section (311) and the second docking section (321) on described the first half free bearings (31) and described the second half free bearings (32), be provided with the connecting screw hole that cooperatively interacts on described the first docking section (311) and described the second docking section (321).
2. oil-gas suspension mechanism according to claim 1, is characterized in that, the external part of the piston rod of described hanging oil cylinder (13) has the articulated section (13a) hinged with vehicle bridge (40).
3. oil-gas suspension mechanism according to claim 2, is characterized in that, described connecting portion is arranged on described the first half free bearings (31) or described the second half free bearings (32).
4. oil-gas suspension mechanism according to claim 3, it is characterized in that, the maximum cross-section of the interface of described the first half free bearings (31) and described the second half free bearings (32) and the along continuous straight runs of described ball pivot section (11a) is coplanar, described the first docking section (311) is for being arranged at the first gimbal panel of described the first half free bearing (31) peripheries, and described the second docking section (321) is for being arranged at the second gimbal panel of described the second half free bearing (32) peripheries.
5. oil-gas suspension mechanism according to claim 4, it is characterized in that, comprise a plurality of the first screws (313) that arrange equally spacedly along the first circumference on described the first gimbal panel, comprise a plurality of the second screws (323) that arrange equally spacedly along the second circumference on described the second gimbal panel, wherein, described the first circumference and the coaxial same radius of described the second circumference, and quantity and the radius of described the first screw (313) and described the second screw (323) are all identical.
6. oil-gas suspension mechanism according to claim 5, it is characterized in that, the periphery of described the first gimbal panel or described the second gimbal panel arranges the outward extending ring portion of along continuous straight runs, the external diameter of described ring portion to form described connecting portion, is provided with along the circumferential direction uniform the 3rd screw (325) greater than the external diameter of the gimbal panel relative with it on described connecting portion.
7. the described oil-gas suspension mechanism of any one according to claim 2 to 6, it is characterized in that, the inboard of described ball pivot seat (30) is provided with oil storage annular groove (34), the arranged outside of described ball pivot seat (30) has the filler port (35) that is communicated with and points to the center of described ball pivot seat (30) with described oil storage annular groove (34), is provided with oiling plug screw (36) in described filler port (35).
8. oil-gas suspension mechanism according to claim 7, is characterized in that, described ball pivot section (11a) along the axial cornerite radian of described cylinder body (11) greater than described ball pivot seat (30) along the axial cornerite radian of described cylinder body (11).
9. oil-gas suspension mechanism according to claim 7, is characterized in that, is provided with telescopic dust protecting cap (50) between the articulated section (13a) of the piston rod of described hanging oil cylinder (13) and the lower end of described cylinder body (11).
10. an engineering truck, have vehicle frame and vehicle bridge, it is characterized in that, connects by the described oil-gas suspension mechanism of any one in claim 1 to 9 between described vehicle frame and described vehicle bridge.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110159432 CN102275481B (en) | 2011-06-14 | 2011-06-14 | Oil-gas suspension mechanism and engineering vehicle with suspension mechanism |
| PCT/CN2012/074207 WO2012171411A1 (en) | 2011-06-14 | 2012-04-17 | Oil-gas suspension mechanism and engineering vehicle with the suspension mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110159432 CN102275481B (en) | 2011-06-14 | 2011-06-14 | Oil-gas suspension mechanism and engineering vehicle with suspension mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102275481A CN102275481A (en) | 2011-12-14 |
| CN102275481B true CN102275481B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110159432 Active CN102275481B (en) | 2011-06-14 | 2011-06-14 | Oil-gas suspension mechanism and engineering vehicle with suspension mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102275481B (en) |
| WO (1) | WO2012171411A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275481B (en) * | 2011-06-14 | 2013-06-19 | 三一汽车起重机械有限公司 | Oil-gas suspension mechanism and engineering vehicle with suspension mechanism |
| CN102555807B (en) * | 2012-03-26 | 2014-09-03 | 中联重科股份有限公司 | Engineering vehicle, vehicle speed control system of engineering vehicle and vehicle speed control method |
| SE538989C2 (en) * | 2012-11-06 | 2017-03-14 | Scania Cv Ab | Mounting device for a vehicle |
| CN103612548A (en) * | 2013-12-08 | 2014-03-05 | 武汉天捷重型装备股份有限公司 | Hydro-pneumatic suspension mechanism for engineering vehicle |
| CN104832495B (en) * | 2015-03-31 | 2016-11-30 | 徐州重型机械有限公司 | Hanging oil cylinder and crane |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB599410A (en) * | 1945-10-11 | 1948-03-11 | Percy Burgess | Improvements relating to vehicle suspension means |
| CN2501759Y (en) * | 2001-07-31 | 2002-07-24 | 同济大学 | Oil hydraulic absorber for spherical hinge siding passing type locomotive vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3716819A1 (en) * | 1986-05-27 | 1987-12-03 | Volkswagen Ag | Telescopic Shock Absorber for Vehicles, especially telescopic shock absorber of a shock-absorber or spring strut |
| US4718780A (en) * | 1986-09-02 | 1988-01-12 | O & S Manufacturing Company | Sealed compound bearing and method for making the same |
| DE4328319A1 (en) * | 1993-08-23 | 1995-03-02 | Hemscheidt Maschf Hermann | Cylinder-piston unit for a hydropneumatic suspension |
| CN2489997Y (en) * | 2001-07-11 | 2002-05-08 | 株洲庆云电力机车配件工厂 | Coupler for oleo-gear of electric locomotive |
| JP3917955B2 (en) * | 2003-06-26 | 2007-05-23 | 石川島芝浦機械株式会社 | Cylinder mounting structure |
| CN202186256U (en) * | 2011-06-14 | 2012-04-11 | 三一汽车起重机械有限公司 | Oil gas suspension mechanism and engineering truck comprising same |
| CN102275481B (en) * | 2011-06-14 | 2013-06-19 | 三一汽车起重机械有限公司 | Oil-gas suspension mechanism and engineering vehicle with suspension mechanism |
-
2011
- 2011-06-14 CN CN 201110159432 patent/CN102275481B/en active Active
-
2012
- 2012-04-17 WO PCT/CN2012/074207 patent/WO2012171411A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB599410A (en) * | 1945-10-11 | 1948-03-11 | Percy Burgess | Improvements relating to vehicle suspension means |
| CN2501759Y (en) * | 2001-07-31 | 2002-07-24 | 同济大学 | Oil hydraulic absorber for spherical hinge siding passing type locomotive vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012171411A1 (en) | 2012-12-20 |
| CN102275481A (en) | 2011-12-14 |
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