Search

CN-122014794-A - Power assembly suspension and vehicle

CN122014794ACN 122014794 ACN122014794 ACN 122014794ACN-122014794-A

Abstract

The invention provides a power assembly suspension and a vehicle, the power assembly suspension comprises a shell, a main rubber spring and a hydraulic valve group, wherein the main rubber spring is arranged in the shell, a mounting cavity is enclosed between the main rubber spring and the shell, the hydraulic valve group is arranged in the mounting cavity, at least a first pipeline and a second pipeline are arranged in the hydraulic valve group, the opening end of the first pipeline is connected with the main rubber spring and enclosed into a first hydraulic cavity, the opening end of the second pipeline is connected with the main rubber spring and enclosed into a second hydraulic cavity, hydraulic oil is filled in the first hydraulic cavity and the second hydraulic cavity, the first hydraulic cavity is not communicated with the second hydraulic cavity, the first pipeline can be axially contractibly arranged under the extrusion action of the main rubber spring so as to change the volume of the first hydraulic cavity, and hydraulic oil in the first hydraulic cavity extrudes the cavity wall of the second hydraulic cavity so as to change the volume of the second hydraulic cavity. The invention solves the technical problem that the suspension of the power assembly in the prior art cannot simultaneously meet the requirements of idling vibration isolation and running support.

Inventors

  • LI CHUANLONG
  • WANG LEI
  • MA XINHUI
  • ZHAO LUYANG
  • XUE RUIFENG

Assignees

  • 一汽解放汽车有限公司

Dates

Publication Date
20260512
Application Date
20260130

Claims (10)

  1. 1.A power assembly suspension, which is characterized in that, characterized by comprising the following steps: A housing (1); the main rubber spring (2) is arranged in the shell (1), and an installation cavity (6) is formed between the main rubber spring (2) and the shell (1) in a surrounding mode; The hydraulic valve group (3), hydraulic valve group (3) are located in installing cavity (6), hydraulic valve group (3) are equipped with first pipeline (311) and second pipeline (312) at least, the open end of first pipeline (311) with main rubber spring (2) are connected, and enclose into first hydraulic pressure chamber (4), the open end of second pipeline (312) with main rubber spring (2) are connected, and enclose into second hydraulic pressure chamber (5), first hydraulic pressure chamber (4) with all be filled with hydraulic oil in second hydraulic pressure chamber (5), first hydraulic pressure chamber (4) with second hydraulic pressure chamber (5) are not linked together, first pipeline (311) are in under the extrusion effect of main rubber spring (2) can axial shrink ground set up, in order to change the volume of first hydraulic pressure chamber (4), and hydraulic oil in first hydraulic pressure chamber (4) extrudees the chamber wall of second hydraulic pressure chamber (5) in order to change the hydraulic pressure chamber wall of second hydraulic pressure chamber (5).
  2. 2. The powertrain suspension of claim 1, wherein a diaphragm (3111) is provided between the first hydraulic chamber (4) and the second hydraulic chamber (5), the diaphragm (3111) being flexibly arranged when squeezed by hydraulic oil.
  3. 3. The powertrain suspension according to claim 2, characterized in that the hydraulic valve group (3) further comprises: A baffle (32), the baffle (32) being movably disposed within the second conduit (312), the baffle (32) separating the second conduit (312) into a first flow section (3121) and a second flow section (3122), the baffle (32) having a first position for communicating the first flow section (3121) with the second flow section (3122) and a second position for disconnecting the first flow section (3121) from the second flow section (3122); The valve needle (33) is arranged in the second pipeline (312), one end of the valve needle (33) is connected with the baffle plate (3111), and the other end of the valve needle (33) is connected with the baffle plate (32).
  4. 4. A powertrain suspension according to claim 3, characterized in that the hydraulic valve group (3) further comprises: the elastic piece (34), in elastic piece (34) are located in second pipeline (312), the one end of elastic piece (34) with second pipeline (312) are connected, the other end of elastic piece (34) with baffle (32) are connected, elastic piece (34) provide messenger baffle (32) are located the pretightning force of second position.
  5. 5. The powertrain suspension of any one of claims 1-4, wherein the main rubber spring (2) comprises: -a first component section (21), the first component section (21) and the housing (1) forming the mounting cavity (6) therebetween; a second component section (22), the second component section (22) being connected to a first end of the first component section (21), the second component section (22) being arranged at a first angle to the first component section (21); And the third composition section (23), the third composition section (23) is connected with the second end of the first composition section (21), and the third composition section (23) and the first composition section (21) are arranged at a second included angle.
  6. 6. The powertrain suspension of claim 5, wherein the number of second conduits (312) is two, the first conduit (311) is disposed between the two second conduits (312), an open end of the first conduit (311) is connected to the first component section (21), an open end of one of the second conduits (312) is connected to the second component section (22), and an open end of the other of the second conduits (312) is connected to the third component section (23).
  7. 7. The powertrain suspension according to claim 1, characterized in that one end of the first conduit (311) near the main rubber spring (2) is provided with a first flexible structure (3112) and/or one end of the second conduit (312) near the main rubber spring (2) is provided with a second flexible structure (3123).
  8. 8. The locomotion assembly suspension of claim 7, wherein the first flexible structure (3112) is a bellows and/or the second flexible structure (3123) is a bellows.
  9. 9. The powertrain suspension according to claim 1, characterized in that the housing (1) is provided with a first mounting structure (11), the first mounting structure (11) being arranged opposite to the main rubber spring (2) along the telescoping direction of the first conduit (311).
  10. 10. A vehicle comprising the powertrain suspension of any one of claims 1-9.

Description

Power assembly suspension and vehicle Technical Field The invention relates to the technical field of power assembly suspension, in particular to a power assembly suspension and a vehicle. Background The powertrain mount not only supports the engine and transmission, but also isolates vibrations transmitted to the vehicle body by the powertrain to ensure vehicle comfort and stability. In order to effectively isolate low-frequency large-amplitude vibration under idle working conditions, the power assembly suspension needs to show lower rigidity and higher damping, and in order to provide enough support to prevent the power assembly from being greatly displaced under high-load working conditions such as acceleration, braking and the like, the power assembly suspension needs to have higher rigidity and lower damping. However, the rigidity and damping characteristics of the suspension of the powertrain in the prior art are fixed, and the requirements of idle vibration isolation and running support cannot be simultaneously met. Aiming at the technical problem that the suspension of the power assembly in the prior art cannot simultaneously meet the requirements of idling vibration isolation and running support, no effective solution is proposed at present. Disclosure of Invention The invention mainly aims to provide a power assembly suspension and a vehicle, which are used for solving the technical problem that the power assembly suspension in the prior art cannot meet the requirements of idling vibration isolation and running support at the same time. In order to achieve the above object, according to one aspect of the present invention, there is provided a power assembly suspension including a housing, a main rubber spring and a hydraulic valve set, the main rubber spring being disposed in the housing, a mounting chamber being defined between the main rubber spring and the housing, the hydraulic valve set being disposed in the mounting chamber, the hydraulic valve set being provided with at least a first pipe and a second pipe, an open end of the first pipe being connected to the main rubber spring and being defined as a first hydraulic chamber, an open end of the second pipe being connected to the main rubber spring and being defined as a second hydraulic chamber, the first hydraulic chamber and the second hydraulic chamber being filled with hydraulic oil, the first hydraulic chamber and the second hydraulic chamber being not communicated with each other, the first pipe being axially contractible under an extrusion action of the main rubber spring to change a volume of the first hydraulic chamber, and hydraulic oil in the first hydraulic chamber being pressed against a chamber wall of the second hydraulic chamber to change a volume of the second hydraulic chamber. Further, a partition plate is provided between the first hydraulic chamber and the second hydraulic chamber, and the partition plate is flexibly provided when being pressed by hydraulic oil. Further, the hydraulic valve group further comprises a baffle plate which is movably arranged in the second pipeline and divides the second pipeline into a first flow section and a second flow section, the baffle plate is provided with a first position for enabling the first flow section to be communicated with the second flow section and a second position for cutting off the communication between the first flow section and the second flow section, a valve needle is arranged in the second pipeline, one end of the valve needle is connected with the baffle plate, and the other end of the valve needle is connected with the baffle plate. Further, the hydraulic valve group further comprises an elastic piece, wherein the elastic piece is arranged in the second pipeline, one end of the elastic piece is connected with the second pipeline, the other end of the elastic piece is connected with the baffle, and the elastic piece provides pretightening force for enabling the baffle to be located at the second position. Further, the main rubber spring comprises a first composition section, a second composition section and a third composition section, wherein a mounting cavity is formed between the first composition section and the shell, the second composition section is connected with the first end of the first composition section, the second composition section and the first composition section are arranged at a first included angle, the third composition section is connected with the second end of the first composition section, and the third composition section and the first composition section are arranged at a second included angle. Further, two second pipelines are provided, a first pipeline is arranged between the two second pipelines, the opening end of the first pipeline is connected with the first composition section, the opening end of one second pipeline is connected with the second composition section, and the opening end of the other second pipeline is connected w