CN201494273U - Oil gas suspension system of hydraulic trailer - Google Patents
Oil gas suspension system of hydraulic trailer Download PDFInfo
- Publication number
- CN201494273U CN201494273U CN2009203097592U CN200920309759U CN201494273U CN 201494273 U CN201494273 U CN 201494273U CN 2009203097592 U CN2009203097592 U CN 2009203097592U CN 200920309759 U CN200920309759 U CN 200920309759U CN 201494273 U CN201494273 U CN 201494273U
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- hydraulic
- swing arm
- suspension
- cantilever
- oil cylinder
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Abstract
The utility model discloses the oil gas suspension system of a hydraulic trailer, comprising a mechanical system and a hydraulic control system, wherein the mechanical system comprises at least four suspension devices with two axial lines symmetrically arranged; the suspension devices respectively comprise a rotary support, a cantilever, a swing arm, a suspension cylinder and a wheel shaft; an outer ring of the rotary support is connected with a trailer frame by screws and an inner ring of the rotary support is connected with the cantilever by screws, the lower side of the cantilever is hinged with the swing arm; the suspension cylinder is arranged between the cantilever and the swing arm; and the wheel shaft is sheathed at the shaft head of the swing arm. The oil gas suspension system of the hydraulic trailer leads the suspension cylinder to be connected with the cantilever and the swing arm so as to play a role of a guide device, and the utiltiy model provides the oil gas suspension system of the hydraulic trailer, which has a simple structure and does not need to arrange guide devices such as a vertical thrust rod and a transverse thrust rod, and the like.
Description
Technical field
The utility model relates to a kind of automobile suspension system, particularly relates to a kind of hydraulic trailer hydro-pneumatic suspension system.
Background technology
Traditional vehicle suspension system is to be connected vehicle frame and axletree with telescopic shock absorber with steel spring, and is linear between its suspension distortion and the spring carried mass.Hydro pneumatic suspension is a kind of later-model chassis suspension technology, is a kind of special case of air suspension, at present domestic being mainly used on the civilian product such as the particularly full ground of mine dumping car, wheel shovel, scrapers, iant flat truck hoisting crane.
Hydro-pneumatic suspension system adopts the suspension oil cylinder to be connected vehicle frame and axletree with the guiding propelling rod, the suspension oil cylinder is converted to vertical axle load the pressure of oil cylinder inner fluid, pressure is passed to hydraulic control unit and energy storage by pipeline, the unreactable gas (being generally nitrogen) of existing certain initial pressure is an elastic medium in the energy storage, have several cutoff ports and check valve on the suspension oil cylinder internal oil passages, can play the effect of vibration damping.Because hydro-pneumatic spring can only bear axial load, so guide piece such as vertical and horizontal propelling rod must be set in the hydro-pneumatic spring suspension; And the processed complex of suspension oil cylinder, assembly precision requires high, and maintenance is trouble.
The utility model content
Technical problem to be solved in the utility model provides a kind of simple in structure, hydraulic trailer hydro-pneumatic suspension system that guide piecees such as vertical and horizontal propelling rod need be set.
For solving the problems of the technologies described above, the utility model comprises mechanical system and hydraulic control system, 2n the draft hitch of described mechanical system for being symmetrically arranged by axis, described n is axis quantity and is not less than 2, described draft hitch comprises revolution support, cantilever, swing arm, suspension oil cylinder and wheel shaft, the outer ring is supported in described revolution and vehicle frame is spirally connected, inner ring is supported in described revolution and cantilever is spirally connected, described cantilever below is hinged with swing arm, described suspension oil cylinder is arranged between described cantilever and the swing arm, and described axle sleeve is contained in the spindle nose place of swing arm.
According to technique scheme, described hydraulic control system comprises Hydraulic Pump, multiple directional control valve, shutoff valve, dual circuit explosion prevention valve, energy storage, compression indicator, quick coupling, hydraulic reservoir, described compression indicator is arranged on the hydraulic tubing of every road, described dual circuit explosion prevention valve is arranged on suspension oil cylinder oil inlet position, described energy storage is used for absorbing impact and hanging oil cylinder is carried out cubage compensation, pipeline when described quick coupling is used for trailer combination and car connects, described shutoff valve is arranged on oil cylinder oil inlet place and energy storage junction, and described multiple directional control valve is used to control the suspension oil cylinder and advances, oil return.
In the technique scheme, described multiple directional control valve comprises a check valve, a by pass valve, four three six-way transfer valves, be connected in series with check valve after the P mouth parallel connection of described three six-way transfer valves, the T mouth is also in parallel, the meta oil inlet and outlet is connected in series mutually, and described by pass valve is arranged on into, between oil return line.
In the technique scheme, described suspension oil cylinder is the axial columns plug cylinder.
In the technique scheme, described cantilever and swing arm are hinged by hinging pin shaft.
In the technique scheme, described swing arm is provided with limiting stopper, is used to control the maximum lift height of vehicle frame goods platform.
The utility model since with the suspension oil cylinder by being connected with cantilever, swing arm, play the guide piece effect, a kind of simple in structure, hydraulic trailer hydro-pneumatic suspension system that guide piece such as vertical and horizontal propelling rod need be set is provided.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is the mechanical system structure scheme drawing of a specific embodiment of the utility model.
Fig. 2 is the hydraulic system principle figure of a specific embodiment of the utility model.
The constitution diagram of shutoff valve when Fig. 3 adopts supported at three point for the utility model.
The constitution diagram of shutoff valve when Fig. 4 adopts support at 4 for the utility model.
The specific embodiment
As shown in Figure 1, mechanical system of the present utility model comprises four draft hitchs that at least two axis are symmetrically arranged, and each draft hitch comprises revolution support 1, cantilever 2, hinging pin shaft 3, swing arm 5, suspension oil cylinder 6 and a wheel shaft 7.1 outer ring is supported in revolution and vehicle frame is spirally connected, and inner ring and cantilever 2 are spirally connected, and realizes that draft hitch turns to; Cantilever 2 is hinged by hinging pin shaft 3 with swing arm 5, and suspension oil cylinder 6 two ends are installed in respectively in cantilever 2 and the swing arm 5; Wheel shaft 7 is sleeved on the spindle nose place of swing arm 5.Suspension oil cylinder 6 drives swing arm 5 and rotates around hinging pin shaft by flexible compensation, realizes the lifting of vehicle frame goods platform.The spindle nose teeter certain angle of wheel shaft 7 in swing arm 5 adapts to Uneven road.In swing arm 5, be welded with a limiting stopper 4,, play the effect of protection suspension oil cylinder 6 simultaneously in order to the maximum lift height of control vehicle frame goods platform.
As shown in Figure 2, be that embodiment is illustrated with the four axistyle trailer.The utility model hydraulic efficiency pressure system comprises multiple directional control valve 8, shutoff valve 9, dual circuit explosion prevention valve 10, energy storage 11, quick coupling 12, compression indicator 13, hydraulic reservoir 14, Hydraulic Pump 15.Described multiple directional control valve 8 is made up of a check valve, a by pass valve, four three six-way transfer valves.Be connected in series with check valve after the P mouth parallel connection of described four three six-way transfer valves, the T mouth is also in parallel, and the meta oil inlet and outlet is connected in series mutually, and by pass valve is connected on into, between oil return line, and when system pressure was too high, part fluid was directly by the by pass valve oil sump tank.When put on the handle right side of multiple directional control valve 8, Hydraulic Pump 15 was from hydraulic reservoir 14 oil suctions, fluid in multiple directional control valve 8 behind the check valve to the P mouth of four three six-way transfer valves, to the A mouth, pass through a plurality of shutoff valves 9 again, to suspension oil cylinder 6, the oil cylinder elongation, vehicle is by lifting.When put on the handle left side of multiple directional control valve 8,6 oil returns of suspension oil cylinder, the oil cylinder compression, vehicle is lowered.
Assembled state by control shutoff valve 9.2 and 9.3 can realize the conversion of supporting way.
As shown in Figure 3,9.2-1 closes, and 9.2-2 opens, and 9.2-3 opens, and 9.2-4 closes; 9.3-1 close, 9.3-2 opens, 9.3-3 closes, and 9.3-4 closes.Like this, left front 2 groups of wheels, right front 2 groups of wheels, the 4 groups of wheels in back are formed a hydraulic pressure respectively and are supported loop, constitute supported at three point.Supported at three point is main supporting form, and under the unequal situation of brake or ground, vehicle can not turned on one's side.
As shown in Figure 4,9.2-1 closes, and 9.2-2 opens, and 9.2-3 opens, and 9.2-4 closes; 9.3-1 close, 9.3-2 closes, 9.3-3 closes, and 9.3-4 closes.Like this, left front 2 groups of wheels, right front 2 groups of wheels, left back 2 groups of wheels, right back 2 groups of wheels are formed a hydraulic pressure respectively and are supported loop, constitute 4 supports.4 supports have higher stability than supported at three point, are for general under the lade center of gravity condition with higher.
All suspension oil cylinders 6 in a hydraulic pressure supports loop obtain same pressure by pipeline.Any support loop can promote separately or reduction by hydraulic pressure, and this characteristic is regulated by vehicle because lopsidedness causes the injustice of height.
During lade, the shutoff valve 9.4 before each hanging oil cylinder 6 is closed, hanging oil cylinder 6 just can be in the state of not arranging, and this moment, suspension was exactly a rigid suspension; Before the vehicle ', need the shutoff valve 9.4 before each hanging oil cylinder 6 is opened, this moment, suspension was exactly a resilient suspension.During vehicle ', the hanging oil cylinder 6 of each suspension gear is stretched according to the ground-surface situation and is carried out altimetric compensation, and the energy storage 11 that supports in the loop is used for absorbing impact and hanging oil cylinder 6 is carried out cubage compensation, guarantees the steady of goods platform.
Suspension dual circuit explosion prevention valve 10 is installed in suspension oil cylinder 6 oil inlet positions, when unexpected pressure reduction occurring between pipeline and the suspension oil cylinder 6, the valve piece can move to the lower side of pressure, disconnects hydraulic efficiency pressure system, and can not influence other hanging oil cylinder 6 that supports in the loop, the assurance vehicle does not produce and topples.
In the hydraulic efficiency pressure system of suspension, be provided with corresponding quick coupling 12, the pipeline when making things convenient for trailer combination and car connects.Every road hydraulic tubing all is provided with a compression indicator 13, is convenient to monitor the load of oil circuit pressure and each point hanging oil cylinder 6.
It should be noted last that, the above specific embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. hydraulic trailer hydro-pneumatic suspension system, comprise mechanical system and hydraulic control system, it is characterized in that, 2n the draft hitch of described mechanical system for being symmetrically arranged by axis, described n is axis quantity and is not less than 2, described draft hitch comprises revolution support, cantilever, swing arm, suspension oil cylinder and wheel shaft, the outer ring is supported in described revolution and vehicle frame is spirally connected, inner ring is supported in described revolution and cantilever is spirally connected, described cantilever below is hinged with swing arm, described suspension oil cylinder is arranged between described cantilever and the swing arm, and described axle sleeve is contained in the spindle nose place of swing arm.
2. a kind of hydraulic trailer hydro-pneumatic suspension system according to claim 1, it is characterized in that, described hydraulic control system comprises Hydraulic Pump, multiple directional control valve, shutoff valve, dual circuit explosion prevention valve, energy storage, compression indicator, quick coupling, hydraulic reservoir, described compression indicator is arranged on the hydraulic tubing of every road, described dual circuit explosion prevention valve is arranged on suspension oil cylinder oil inlet position, described energy storage is used for absorbing impact and hanging oil cylinder is carried out cubage compensation, pipeline when described quick coupling is used for trailer combination and car connects, described shutoff valve is arranged on oil cylinder oil inlet place and energy storage junction, and described multiple directional control valve is used to control the suspension oil cylinder and advances, oil return.
3. a kind of hydraulic trailer hydro-pneumatic suspension system according to claim 1 and 2, it is characterized in that, described multiple directional control valve comprises a check valve, a by pass valve, four three six-way transfer valves, be connected in series with check valve after the P mouth parallel connection of described three six-way transfer valves, the T mouth is also in parallel, the meta oil inlet and outlet is connected in series mutually, and described by pass valve is arranged on into, between oil return line.
4. a kind of hydraulic trailer hydro-pneumatic suspension system according to claim 1 is characterized in that described suspension oil cylinder is the axial columns plug cylinder.
5. a kind of hydraulic trailer hydro-pneumatic suspension system according to claim 1 is characterized in that, described cantilever and swing arm are hinged by hinging pin shaft.
6. a kind of hydraulic trailer hydro-pneumatic suspension system according to claim 1 is characterized in that described swing arm is provided with limiting stopper, is used to control the maximum lift height of vehicle frame goods platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203097592U CN201494273U (en) | 2009-09-07 | 2009-09-07 | Oil gas suspension system of hydraulic trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203097592U CN201494273U (en) | 2009-09-07 | 2009-09-07 | Oil gas suspension system of hydraulic trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201494273U true CN201494273U (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203097592U Expired - Fee Related CN201494273U (en) | 2009-09-07 | 2009-09-07 | Oil gas suspension system of hydraulic trailer |
Country Status (1)
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|---|---|
| CN (1) | CN201494273U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464034A (en) * | 2010-11-16 | 2012-05-23 | 中冶宝钢技术服务有限公司 | Lifting transport vehicle with hinged frame |
| CN106567904A (en) * | 2016-11-10 | 2017-04-19 | 湖北航天技术研究院特种车辆技术中心 | Lifting hydro-pneumatic suspension hydraulic system |
| CN107264618A (en) * | 2017-06-09 | 2017-10-20 | 湖北三江航天万山特种车辆有限公司 | A kind of hydraulic system of special trailer |
| CN107687455A (en) * | 2017-09-21 | 2018-02-13 | 南通润邦重机有限公司 | A kind of multigroup hydraulic suspension oil cylinder supporting system of rubber tired crane |
| CN113771727A (en) * | 2021-10-28 | 2021-12-10 | 北京中科宇航技术有限公司 | Rocket transfer trolley with butt joint adjusting launcher |
-
2009
- 2009-09-07 CN CN2009203097592U patent/CN201494273U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464034A (en) * | 2010-11-16 | 2012-05-23 | 中冶宝钢技术服务有限公司 | Lifting transport vehicle with hinged frame |
| CN106567904A (en) * | 2016-11-10 | 2017-04-19 | 湖北航天技术研究院特种车辆技术中心 | Lifting hydro-pneumatic suspension hydraulic system |
| CN107264618A (en) * | 2017-06-09 | 2017-10-20 | 湖北三江航天万山特种车辆有限公司 | A kind of hydraulic system of special trailer |
| CN107264618B (en) * | 2017-06-09 | 2019-04-05 | 湖北三江航天万山特种车辆有限公司 | A kind of hydraulic system of special trailer |
| CN107687455A (en) * | 2017-09-21 | 2018-02-13 | 南通润邦重机有限公司 | A kind of multigroup hydraulic suspension oil cylinder supporting system of rubber tired crane |
| CN113771727A (en) * | 2021-10-28 | 2021-12-10 | 北京中科宇航技术有限公司 | Rocket transfer trolley with butt joint adjusting launcher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20140907 |
|
| EXPY | Termination of patent right or utility model |