CN216268547U - Semitrailer oil gas suspension hydraulic pressure connecting line - Google Patents
Semitrailer oil gas suspension hydraulic pressure connecting line Download PDFInfo
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- CN216268547U CN216268547U CN202122617298.9U CN202122617298U CN216268547U CN 216268547 U CN216268547 U CN 216268547U CN 202122617298 U CN202122617298 U CN 202122617298U CN 216268547 U CN216268547 U CN 216268547U
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Abstract
The utility model discloses a hydraulic connection pipeline for a semitrailer hydro-pneumatic suspension, which comprises a connector, an energy accumulator, at least one axle and hydro-pneumatic spring cylinders respectively arranged at the left end and the right end of each axle, wherein the connector is provided with at least two pipeline joints, each hydro-pneumatic spring cylinder is connected with the corresponding pipeline joint on the connector through a corresponding high-pressure oil pipe, and the output end of the connector is connected with the energy accumulator. The hydro-pneumatic spring cylinders are not connected in series any more, but are directly connected with the energy accumulator through the connectors respectively, so that the oil liquid interference caused by inconsistent motion states of axles can be well prevented, the vibration reduction effect is influenced, and the smoothness during driving is effectively guaranteed.
Description
Technical Field
The utility model relates to the technical field of semitrailer hydro-pneumatic suspensions, in particular to a hydraulic connecting pipeline of a semitrailer hydro-pneumatic suspension.
Background
The semi-trailer hydro-pneumatic suspension's subassembly contains hydro-pneumatic spring cylinder and energy storage ware, and the connected mode of both has very big influence to semi-trailer hydro-pneumatic suspension's performance. The existing technical scheme adopts three axles, the left end and the right end of each axle are respectively provided with an oil-gas suspension cylinder, all the oil-gas suspension cylinders, a high-pressure energy accumulator and a low-pressure energy accumulator are sequentially connected in series, and because the motion states of the axles are inconsistent in the driving process, the serially connected oil lines can influence the axles mutually, the axles do not move coordinately, and the smoothness in the driving process is reduced.
SUMMERY OF THE UTILITY MODEL
Objects of the utility model
In order to solve the technical problems in the background art, the utility model provides a hydraulic connecting pipeline for an oil-gas suspension of a semitrailer, wherein each oil-gas spring cylinder in the hydraulic connecting pipeline is directly connected with an energy accumulator through a connector, so that the mutual interference of oil and the influence on the vibration damping effect caused by the inconsistent motion state of each axle can be well prevented, and the smoothness during driving is effectively guaranteed.
(II) technical scheme
The utility model provides a semitrailer hydro-pneumatic suspension hydraulic connecting pipeline which comprises a connector, an energy accumulator, at least one axle and hydro-pneumatic spring cylinders respectively arranged at the left end and the right end of each axle, wherein the connector is provided with at least two pipeline joints, each hydro-pneumatic spring cylinder is connected with the corresponding pipeline joint on the connector through a corresponding high-pressure oil pipe, and the hydro-pneumatic spring cylinders are connected with the energy accumulator through the output end of the connector.
Preferably, the hydro-pneumatic spring cylinder comprises a double-acting hydro-pneumatic spring cylinder, and the double-acting hydro-pneumatic spring cylinder is respectively connected with the frame and the axle so as to form elastic support between the frame and the axle.
Preferably, the hydro-pneumatic spring cylinder further comprises a single-acting hydro-pneumatic spring cylinder, and the single-acting hydro-pneumatic spring cylinder is respectively connected with the frame and the axle so as to form elastic support between the frame and the axle.
Preferably, the connector is further provided with an oil filling nozzle, and the oil filling nozzle is communicated with a main oil way of the semitrailer hydro-pneumatic suspension system.
Preferably, the number of the pipeline joints arranged on the connector is larger than that of the hydro-pneumatic spring cylinders.
Preferably, the connector is further provided with a nitrogen gas charging nozzle so as to charge nitrogen gas into the corresponding high-pressure oil pipe through the nitrogen gas charging nozzle.
Preferably, the accumulator is a high pressure accumulator.
Preferably, the accumulator comprises a high pressure accumulator and a low pressure accumulator which are communicated with each other.
Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:
in the utility model, each hydro-pneumatic spring cylinder is connected with the energy accumulator through the connector respectively, so that the hydro-pneumatic spring cylinders are not connected in series, thereby well preventing oil from interfering with each other and influencing the damping effect due to inconsistent motion states of each axle and effectively ensuring the smoothness during driving.
Drawings
Fig. 1 is an oil circuit pipeline diagram of a hydraulic connection pipeline of a semitrailer oil-gas suspension provided by the utility model.
Reference numerals: 1. a connector; 2. a high pressure accumulator; 3. a hydro-pneumatic spring cylinder; 4. a high pressure oil pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, welded, riveted, bonded, and the like, or detachably connected, screwed, keyed, pinned, and the like, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the semitrailer hydro-pneumatic suspension hydraulic connecting pipeline that this embodiment provided includes connector 1, energy storage ware, 3 axletrees and sets up hydro-pneumatic spring cylinder 3 at both ends about every axletree respectively, 6 hydro-pneumatic spring cylinders 3 promptly. Meanwhile, the connector 1 is also provided with 6 pipeline joints respectively corresponding to the 6 hydro-pneumatic spring cylinders 3, and each pipeline joint is connected with one high-pressure oil pipe 4, so that each hydro-pneumatic spring cylinder 3 is connected with the corresponding pipeline joint on the connector 1 through the corresponding high-pressure oil pipe 4, and then is connected with the energy accumulator through the output end of the connector 1.
In the above embodiment, each hydro-pneumatic spring cylinder 3 is directly connected with the energy accumulator through the connector 1, so that each hydro-pneumatic spring cylinder 3 is not connected in series, thereby well preventing each axle from interfering with each other due to inconsistent motion state, influencing vibration reduction effect, and effectively ensuring smoothness during driving.
The utility model does not limit the number of axles on the vehicle, namely the number of axles can be set according to the requirement, and the number of hydro-pneumatic spring cylinders can be set according to the number of axles, and the hydro-pneumatic spring cylinders only can realize buffer vibration reduction and height adjustment of the vehicle frame.
In an alternative embodiment, the hydro-pneumatic spring cylinder 3 comprises a double-acting hydro-pneumatic spring cylinder, which is connected to the frame and the axle, respectively, to form an elastic support between the frame and the axle, by means of which a single axle lifting function of the axle can be achieved when needed.
In an alternative embodiment, the hydro-pneumatic spring cylinder 3 further comprises a single-acting hydro-pneumatic spring cylinder, the single-acting hydro-pneumatic spring cylinder is respectively connected with the frame and the axle to form an elastic support between the frame and the axle, and the single-axle lifting and the integral lifting of the axle can be realized through the cooperation of the single-acting hydro-pneumatic spring cylinder and the double-acting hydro-pneumatic spring cylinder, and the specific lifting process is described in the prior art document and is not described in detail herein.
In an optional embodiment, the connector 1 further comprises an oil filling nozzle, and the oil filling nozzle is communicated with a main oil path of the semi-trailer hydro-pneumatic suspension system, so that filled hydraulic oil can sequentially flow through the high-pressure oil pipe 4 through the oil filling nozzle and enter an oil cavity corresponding to the hydro-pneumatic spring cylinder 3.
In an alternative embodiment, the number of the pipeline joints arranged on the connector 1 can be larger than that of the oil-gas spring cylinders 3, and redundant pipeline joints can be used when the pipeline joints are in failure during use, so that the failure can be quickly solved.
In the preferred embodiment shown in fig. 1, the connector 1 is further provided with a nitrogen gas charging nozzle, so that low-pressure nitrogen gas is charged into the corresponding high-pressure oil pipe 4 through the nitrogen gas charging nozzle, and the low-pressure nitrogen gas is directly injected into the pipeline through the charging nozzle, so that the no-load response speed can be effectively increased.
In other embodiments, the connector 1 does not need to be provided with a nitrogen gas charging nozzle, but can be provided with a high-pressure energy accumulator and a low-pressure energy accumulator which are communicated with each other, wherein the low-pressure energy accumulator and the high-pressure energy accumulator are respectively filled with nitrogen gas with different pressures, so that the pipelines have two-stage pressure, and the two-stage pressure can be used as a buffer medium of a vehicle suspension system, and can well absorb impact force and vibration transmitted by each oil way.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. The utility model provides a semitrailer oil gas suspension hydraulic pressure connecting line, its characterized in that includes connector (1), energy storage ware, an at least axletree and sets up hydro-pneumatic spring cylinder (3) at every axletree left and right ends respectively, be equipped with two at least pipe joints on connector (1), every hydro-pneumatic spring cylinder (3) are all connected through corresponding high pressure fuel pipe (4) the pipe joint that corresponds on connector (1), and pass through the output of connector (1) is connected the energy storage ware.
2. A semitrailer hydro-pneumatic suspension hydraulic connection line according to claim 1, characterised in that said hydro-pneumatic spring cylinder (3) comprises a double-acting hydro-pneumatic spring cylinder connected to the frame and to the axle respectively, to form an elastic support between the frame and the axle.
3. Hydraulic connection line of hydro-pneumatic suspensions of semitrailers according to claim 1 or 2, characterised in that said hydro-pneumatic spring cylinder (3) also comprises a single-acting hydro-pneumatic spring cylinder, which is connected to the frame and to the axle respectively, so as to form an elastic support between the frame and the axle.
4. The semitrailer hydro-pneumatic suspension hydraulic connecting pipeline according to claim 3 is characterized in that the connector (1) is further provided with an oil filling nozzle, and the oil filling nozzle is communicated with a main oil way of a semitrailer hydro-pneumatic suspension system.
5. The semitrailer hydro-pneumatic suspension hydraulic connecting pipeline according to claim 3, characterized in that the number of pipeline joints arranged on the connector (1) is greater than the number of hydro-pneumatic spring cylinders (3).
6. The semitrailer hydro-pneumatic suspension hydraulic connecting line according to claim 3, characterized in that the connector (1) is further provided with a nitrogen gas charging nozzle so as to charge nitrogen gas into the corresponding high-pressure oil pipe (4) through the nitrogen gas charging nozzle.
7. The semitrailer hydro-pneumatic suspension hydraulic connecting line according to claim 6, characterized in that the accumulator is a high pressure accumulator (2).
8. The semitrailer hydro-pneumatic suspension hydraulic connecting line according to claim 3, characterized in that the accumulators comprise a high-pressure accumulator (2) and a low-pressure accumulator which are communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122617298.9U CN216268547U (en) | 2021-10-29 | 2021-10-29 | Semitrailer oil gas suspension hydraulic pressure connecting line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122617298.9U CN216268547U (en) | 2021-10-29 | 2021-10-29 | Semitrailer oil gas suspension hydraulic pressure connecting line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216268547U true CN216268547U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122617298.9U Active CN216268547U (en) | 2021-10-29 | 2021-10-29 | Semitrailer oil gas suspension hydraulic pressure connecting line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216268547U (en) |
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2021
- 2021-10-29 CN CN202122617298.9U patent/CN216268547U/en active Active
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