CN214057317U

CN214057317U - Ultralow mechanical suspension mechanism

Info

Publication number: CN214057317U
Application number: CN202023349220.5U
Authority: CN
Inventors: 刘国青
Original assignee: Wuxi Chisheng Vehicle Parts Co ltd
Current assignee: Wuxi Chisheng Vehicle Parts Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-27
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to the technical field of vehicle seats, in particular to an ultra-low mechanical suspension mechanism, which comprises an upper plate and a lower plate, wherein the upper plate is fixedly connected with a seat, the lower plate is fixedly connected with a vehicle body, a four-bar mechanism is connected between the upper plate and the lower plate, the four-bar mechanism comprises a first fixed end, a first driving end, a second fixed end and a second driven end which are respectively positioned at two sides of the upper plate, the first driving end corresponds to the second driven end, a connecting rod is fixedly connected with the upper plate, and the first mounting plate and the second mounting plate are respectively fixedly connected with the lower plate. The peak clipping effect is strengthened, and the vibration reduction effect is improved.

Description

Ultralow mechanical suspension mechanism

Technical Field

The utility model relates to a vehicle seat technical field, concretely relates to ultralow machinery suspension mechanism.

Background

In the field of the existing engineering vehicle seat, as an engineering vehicle usually works in the environment under some complex working conditions, the vibration damping performance of the seat is an important ring influencing the quality. Traditional seat damping technique, its in-process damping mechanism's motion amplitude at the damping is all great, and apart from the overlength, has caused not good experience to passenger's comfort level.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides an ultralow machinery suspension mechanism, the technical problem that solve how to design a short damping mechanism of movement distance, improve passenger's travelling comfort to guarantee sufficient damping effect.

In order to solve the technical problem, the utility model provides a technical scheme is: an ultra-low mechanical suspension mechanism comprises an upper plate and a lower plate, wherein the upper plate is fixedly connected with a seat, the lower plate is fixedly connected with a vehicle body, and a four-bar linkage mechanism is connected between the upper plate and the lower plate;

the four-bar mechanism comprises a first fixed end, a first driving end, a second fixed end and a second driven end, the first fixed end is corresponding to the second fixed end, the first driving end is corresponding to the second driven end, the first fixed end and the first driving end are jointly arranged on a first mounting plate, a connecting rod is connected between the first driving end and the second driven end, the connecting rod is fixedly connected with the upper plate, the second driven end and the second fixed end are jointly arranged on a second mounting plate, the first mounting plate and the second mounting plate are respectively fixedly connected with a lower plate, a first connecting rod is connected between the two first fixed ends, and a second connecting rod is connected between the two second fixed ends.

Furthermore, a third connecting rod is connected between the two first mounting plates, a fourth connecting rod is connected between the two second mounting plates, and plate springs are connected between two second fixed ends and two ends of the fourth connecting rod respectively.

Furthermore, the bottom of the upper plate is provided with a linear rack, the direction of the rack is tangent to the rotating direction of the first driving end, a connecting block is arranged on the first connecting rod, a damping rod is fixedly connected with the connecting block, the damping rod is rotatably connected with a gear through a rotating shaft, and the gear is meshed with the rack.

Furthermore, a rubber pad is arranged on the connecting rod, and a rubber pad is also arranged on the side surface of the upper plate.

The beneficial effect that this technical scheme brought is: the utility model relates to an ultralow machinery suspension mechanism through the four-bar linkage of rational design, has realized reaching the purpose of enough damping effect with ultralow displacement, carries out the damping through the mode of angular motion, improves personnel's travelling comfort, and four-bar linkage, damping rod and the three damping mechanism of rubber pad are with frequency work, have reinforceed the peak clipping effect, have improved the damping effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an ultra-low mechanical suspension mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of an ultra-low mechanical suspension mechanism according to an embodiment of the present invention;

fig. 3 is a schematic side view of an ultra-low mechanical suspension mechanism according to an embodiment of the present invention;

in the figure: 1-upper plate, 2-lower plate, 3-four-bar linkage, 311-first fixed end, 312-first driving end, 321-second fixed end, 322-second driven end, 41-first mounting plate, 5-connecting bar, 42-second mounting plate, 61-first connecting bar, 62-second connecting bar, 63-third connecting bar, 64-fourth connecting bar, 65-plate spring, 11-rack, 12-connecting bar, 13-damping bar, 14-gear and 51-rubber pad.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the preferred embodiments are described herein for purposes of illustration and explanation, and not limitation.

As shown in fig. 1, 2 and 3, the ultra-low mechanical suspension mechanism comprises an upper plate 1 and a lower plate 2, wherein the upper plate 1 is fixedly connected with a seat, the lower plate 2 is fixedly connected with a vehicle body, and a four-bar linkage mechanism 3 is connected between the upper plate 1 and the lower plate 2;

the four-bar linkage 3 includes a first fixed end 311, a first driving end 312, a second fixed end 321 and a second driven end 322 respectively located at two sides of the upper plate 1, wherein the first fixed end 311 corresponds to the second fixed end 321, and the first driving end 312 corresponds to the second driven end 322, thereby forming a parallelogram-shaped four-bar linkage 3. The first fixed end 311 and the first driving end 312 are jointly arranged on the first mounting plate 41, the connecting rod 5 is connected between the first driving end 312 and the second driven end 322, the connecting rod 5 is fixedly connected with the upper plate 1, the second driven end 322 and the second fixed end 321 are jointly arranged on the second mounting plate 42, the first mounting plate 41 and the second mounting plate 42 are respectively fixedly connected with the lower plate 2, the first connecting rod 61 is connected between the two first fixed ends 311, and the second connecting rod 62 is connected between the two second fixed ends 321, so that when the vehicle body vibrates, the acceleration or deceleration caused by the vibration is transmitted to the upper plate 1 through the lower plate 2 and the four-bar mechanism 3, and further the upper plate 1 is driven to move forwards or backwards, and meanwhile, because the first fixed end 311 and the second fixed end 321 are fixed, the first driving end 312 rotates downwards or upwards with the first fixed end 311 as an axis, meanwhile, the second driven end 322 is driven by the connecting rod 5 to rotate by taking the second fixed end 321 as an axis, so that the effect of vibration reduction is achieved through the four-bar mechanism 3, the movement distance of vibration reduction is greatly shortened, and the comfort of passengers is improved. Therefore, the vibration reduction effect is realized through an angular motion mode, and the maximum ratio of the upper part to the lower part to the front part to the rear part is selected through phase calculation so as to improve the comfort of passengers.

In this embodiment, a third connecting rod 63 is connected between the two first mounting plates 41, a fourth connecting rod 64 is connected between the two second mounting plates 42, and a plate spring 65 is connected between two ends of the fourth connecting rod 64 and the two second fixing ends 321, so that the stability of the overall structure is improved by the third connecting rod 63 and the fourth connecting rod 64, and the design of the plate spring 65 can improve the damping effect by using the characteristic of rigid fixation of the plate spring 65.

In this embodiment, the bottom of the upper plate 1 is provided with a linear rack 11, the direction of the rack 11 is tangential to the rotation direction of the first driving end 312, the first connecting rod 61 is provided with a connecting block 12, the connecting block 12 is fixedly connected with a damping rod 13, the damping rod 13 is rotatably connected with a gear 14 through a rotating shaft, the gear 14 is meshed with the rack 11, and therefore, the damping effect is improved by adding a rigidity-adjustable damping rod 13 between the upper plate 1 and the lower plate 2.

In this embodiment, the connecting rod 5 is provided with the rubber pad 51, and the side surface of the upper plate 1 is also provided with the rubber pad 51, so that the rubber pad 51 can play a role of limit buffering, thereby ensuring the vibration damping performance in a limit state, and meanwhile, the rubber pad 51 has a noise reduction effect while playing a role of limit buffering.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultralow mechanical suspension mechanism which characterized in that: the chair comprises an upper plate (1) and a lower plate (2), wherein the upper plate (1) is fixedly connected with a seat, the lower plate (2) is fixedly connected with a vehicle body, and a four-bar linkage (3) is connected between the upper plate (1) and the lower plate (2);

the four-bar linkage (3) comprises a first fixed end (311), a first driving end (312), a second fixed end (321) and a second driven end (322) which are respectively positioned at two sides of the upper plate (1), the first fixed end (311) is corresponding to the second fixed end (321), the first driving end (312) is corresponding to the second driven end (322), the first fixed end (311) and the first driving end (312) are jointly arranged on a first mounting plate (41), a connecting rod (5) is connected between the first driving end (312) and the second driven end (322), the connecting rod (5) is fixedly connected with the upper plate (1), the second driven end (322) is jointly arranged on a second mounting plate (42) with the second fixed end (321), the first mounting plate (41) and the second mounting plate (42) are respectively fixedly connected with the lower plate (2), two be connected with between first stiff end (311) first connecting rod (61), two be connected with second connecting rod (62) between second stiff end (321).

2. An ultra-low mechanical suspension mechanism as claimed in claim 1, wherein: two be connected with third connecting rod (63), two between first mounting panel (41) be connected with fourth connecting rod (64) between second mounting panel (42), the both ends of fourth connecting rod (64) respectively with two be connected with leaf spring (65) between second stiff end (321).

3. An ultra-low mechanical suspension mechanism as claimed in claim 1, wherein: the bottom of upper plate (1) is provided with and is linear rack (11), the direction of rack (11) with the direction of rotation of first initiative end (312) is tangent, be provided with connecting block (12) on head rod (61), connecting block (12) fixedly connected with damping rod (13), damping rod (13) rotate through the pivot and are connected with gear (14), gear (14) with rack (11) mesh mutually.

4. An ultra-low mechanical suspension mechanism as claimed in claim 1, wherein: the connecting rod (5) is provided with a rubber pad (51), and the side surface of the upper plate (1) is also provided with the rubber pad (51).