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Two-dimensional nonlinear vibration-isolating suspension frame of seats of off-road vehicle

An off-highway vehicle, non-linear technology, applied in vehicle seats, seat suspensions, vehicle components, etc., to achieve the effects of low cost, high reliability and stable performance

Inactive Publication Date: 2015-03-11
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, the current off-highway vehicle seat suspension is mainly one-dimensional vertical vibration isolation, while off-highway vehicles have multi-dimensional vibrations during operation, and multi-dimensional vibrations together cause the driver's waist pain and back pain. Therefore, it is necessary to expand the seat Multidimensional Vibration Isolation Performance of Suspension

Method used

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  • Two-dimensional nonlinear vibration-isolating suspension frame of seats of off-road vehicle
  • Two-dimensional nonlinear vibration-isolating suspension frame of seats of off-road vehicle
  • Two-dimensional nonlinear vibration-isolating suspension frame of seats of off-road vehicle

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Effect test

no. 1 example

[0031] This embodiment is composed of a vertical vibration isolation part and a front and rear vibration isolation part. The vertical vibration isolation part and the front and rear vibration isolation parts play the role of vibration isolation in the vertical direction and the front and rear directions respectively. The two parts are fixed by bolts, such as figure 1 Shown; In this first embodiment, the vibration isolation part in the vertical direction is on the bottom, and the vibration isolation part in the front and rear direction is on the top.

[0032] Such as figure 2 As shown, the vertical vibration isolation part is composed of scissor suspension 11, main spring 9, folded plate 7, damper 10, first damper pin 8, second damper pin 12 and symmetrically arranged It consists of two sets of negative stiffness spring mechanisms; image 3 As shown, the negative stiffness spring mechanism includes a negative spring 1, a negative spring guide column 2, a negative spring guide...

no. 2 example

[0039] Such as Figure 8 As shown, the difference between the second embodiment and the first embodiment is that the position of the horizontal spring 23 of the upper front and rear vibration isolation parts is changed. In the first embodiment, the horizontal spring 23 is located on the outside; in the second embodiment, The horizontal spring 23 is located on the inner side. Such as Figure 9 As shown, the connections of the second embodiment are the same as those of the first embodiment.

no. 3 example

[0041] Such as Figure 10 As shown, the difference between the third embodiment and the first embodiment is that the positions of the vertical vibration isolation part and the front and rear vibration isolation parts are changed. In the first embodiment, the vertical vibration isolation part is at the bottom, and the front and rear vibration isolation parts are at the bottom. above; in the third embodiment, the vertical vibration isolation part is on the top, and the front and rear vibration isolation parts are on the bottom. The connections in the third embodiment are the same as those in the first embodiment.

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Abstract

The invention discloses a two-dimensional nonlinear vibration-isolating suspension frame of seats of an off-road vehicle. The two-dimensional nonlinear vibration-isolating suspension frame consists of a vertical vibration-isolating part and a transverse vibration-isolating part, which are respectively used for achieving vibration isolating effects in the vertical direction and the transverse direction, and are fixed by virtue of a bolt. The two-dimensional nonlinear vibration-isolating suspension frame has vibration isolating effects in the vertical direction and the transverse direction, adopts the non-linear vibration isolating principle, and is suitable for various off-road vehicles, especially the off-road vehicles, such as excavators, with very great transverse vibration.

Description

technical field [0001] The invention relates to the field of off-road vehicle seats, in particular to a two-dimensional nonlinear vibration-isolation suspension for off-road vehicle seats. Background technique [0002] The working environment of off-highway vehicles is harsh, and drivers are subjected to multi-dimensional whole-body vibrations. Drivers who work continuously for long periods of time often suffer from back pains, back pains and other diseases, which seriously affect work efficiency and cause huge economic losses in medical treatment. According to epidemiological studies, the low back pain and back pain of off-road vehicle drivers have a lot to do with the whole body vibration environment. Therefore, the problem of off-highway vehicle vibration control has always been a research hotspot that has been widely concerned. As the last link in the vibration transmission path of off-highway vehicles, the seat is very important for alleviating the driver's whole-body ...

Claims

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Application Information

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IPC IPC(8): B60N2/54F16F15/067
CPCB60N2/38B60N2/50
Inventor 闫振华秦荦晟范志海宋健哲秦绪喜冯素丽赵应祥
Owner JILIN UNIV
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