CN110143240B - Rear suspension for cab of medium truck - Google Patents
Rear suspension for cab of medium truck Download PDFInfo
- Publication number
- CN110143240B CN110143240B CN201910396122.XA CN201910396122A CN110143240B CN 110143240 B CN110143240 B CN 110143240B CN 201910396122 A CN201910396122 A CN 201910396122A CN 110143240 B CN110143240 B CN 110143240B
- Authority
- CN
- China
- Prior art keywords
- connecting seat
- fixedly connected
- rod
- portal frame
- hinge rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000725 suspension Substances 0.000 title claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 12
- 230000007246 mechanism Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
- B62D33/0608—Cabs insulated against vibrations or noise, e.g. with elastic suspension pneumatic or hydraulic suspension
Abstract
The invention discloses a cab rear suspension of a medium-sized truck, and relates to the technical field of vehicle rear suspension. The invention comprises a beam and a portal frame, wherein the opposite surfaces of the portal frame are fixedly connected with brackets, and the surfaces of the two brackets are fixedly connected with a supporting plate; a spring damper is fixedly connected to one surface of each of the two support plates; one surface of each of the two spring shock absorbers is fixedly connected with the cross beam; a first connecting seat and a second connecting seat are fixedly connected to one surface of the cross beam respectively; a third connecting seat and a fourth connecting seat are respectively and slidably connected to one surface of the two brackets; a first hinge rod is hinged between the opposite surfaces of the first connecting seat and the third connecting seat. According to the invention, through the design of the first hinge rod and the second hinge rod, the positions of the cross beam and the portal frame can be effectively limited, the transverse stability between the cross beam and the portal frame is effectively ensured through limiting, and the relative displacement or the relative deflection between the cross beam and the portal frame can be effectively avoided.
Description
Technical Field
The invention belongs to the technical field of vehicle rear suspension, and particularly relates to a middle-sized truck cab rear suspension.
Background
The rear suspension of the vehicle body is a part of the suspension of the vehicle body, has great influence on the smoothness of the whole vehicle, and has the main effects of reducing the vibration transmitted to the vehicle body by the vehicle frame, and the device can be used in medium-heavy trucks; with the development of modern automobiles, the requirements of people on the automobiles are not limited to the appearance and safety of the automobiles, and more requirements are also given to the comfort of the automobiles, so that the comfort of the automobiles is greatly influenced.
In the traditional design, the cab of the commercial vehicle is directly connected with the frame, and the road impact suffered by the vehicle during running is directly transmitted to the cab, so that the smoothness of the cab is poor; with the continuous improvement of the requirements of people on the riding comfort of automobiles, part of commercial vehicles use rubber pads as connecting pieces of cabs and frames, and the mode has a certain vibration isolation effect, but the vibration isolation mode can not meet the existing requirements, so that the smoothness of the vehicles is improved by adopting a cab suspension vibration isolation system, and the existing cab rear suspension stability and vibration absorption performance still remain to be improved.
Disclosure of Invention
The invention aims to provide a rear suspension of a middle-sized truck cab, which solves the problem of poor stability and shock absorption of the traditional rear suspension of the middle-sized truck cab through the design of a first hinge rod, a second hinge rod, a limiting spring, a buffer spring and a guide sleeve.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a rear suspension of a middle truck cab, which comprises a cross beam and a portal frame, wherein the opposite surfaces of the portal frame are fixedly connected with brackets, and one surface of each bracket is fixedly connected with a supporting plate; a spring damper is fixedly connected to one surface of each supporting plate; one surface of each spring damper is fixedly connected with the cross beam;
A first connecting seat and a second connecting seat are fixedly connected to one surface of the cross beam respectively; a third connecting seat and a fourth connecting seat are respectively and slidably connected to one surface of the two brackets; a first hinge rod is hinged between the opposite surfaces of the first connecting seat and the third connecting seat; a second hinge rod is hinged between the opposite surfaces of the second connecting seat and the fourth connecting seat; the inner wall of the second hinge rod is hinged with the first hinge rod; two limit springs are fixedly connected between the opposite surfaces of the first hinge rod and the second hinge rod;
Two guide sleeves are arranged in the portal frame; two guide rods are fixedly connected to one surface of the cross beam; the peripheral side surface of the guide rod is in sliding connection with the guide sleeve; a reinforcing rod is fixedly connected between the opposite surfaces of the portal frame; a reset spring is sleeved on the peripheral side face of the reinforcing rod; a connecting rod is hinged to one surface of each guide rod; one end of each connecting rod is hinged with a sliding sleeve; the inner walls of the two sliding sleeves are both in sliding connection with the reinforcing rods; and two ends of the reset spring are fixedly connected with the two sliding sleeves respectively.
Further, dampers are fixedly connected between the first connecting seat and the opposite surfaces of the supporting plate and between the second connecting seat and the opposite surfaces of the supporting plate.
Further, the two limit springs are symmetrically distributed by taking the plane of the hinge shaft of the first hinge rod and the hinge shaft of the second hinge rod as the shaft; the reinforcing rod is positioned above the two limiting springs.
Further, the cross sections of the supporting plate and the portal frame are of U-shaped structures; the third connecting seat and the fourth connecting seat are both positioned on the inner side of the supporting plate.
Further, the two guide rods are positioned between the two dampers; the spring damper is located outside the damper.
The invention has the following beneficial effects:
1. According to the invention, through the design of the first hinge rod and the second hinge rod, the positions of the cross beam and the portal frame can be effectively limited, the transverse stability between the cross beam and the portal frame is effectively ensured through limiting, and the relative displacement or the relative deflection between the cross beam and the portal frame can be effectively avoided.
2. According to the invention, through the design of the two limiting springs, the guide rods, the reset springs and the reinforcing rods, two linkage damping devices are additionally arranged on the basis of double damping of the traditional spring damper and the damper, so that the effect of quadruple damping is achieved, and the damping performance of the rear suspension is enhanced on the basis of not interfering the original functions through quadruple damping.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a rear suspension for a cab of a medium truck;
FIG. 2 is a schematic elevational view of the structure of FIG. 1;
FIG. 3 is a schematic view of a positioning spring;
in the drawings, the list of components represented by the various numbers is as follows:
The device comprises a 1-cross beam, a 2-portal frame, a 3-support, a 4-support plate, a 5-spring damper, a 6-first connecting seat, a 7-second connecting seat, a 8-third connecting seat, a 9-four connecting seat, a 10-first hinge rod, a 11-second hinge rod, a 12-limit spring, a 13-guide sleeve, a 14-guide rod, a 15-reinforcing rod, a 16-return spring, a 17-connecting rod, a 18-sliding sleeve and a 19-damper.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, the invention discloses a rear suspension of a cab of a medium-sized truck, which comprises a cross beam 1 and a portal frame 2, wherein the opposite surfaces of the portal frame 2 are fixedly connected with brackets 3, and one surface of each bracket 3 is fixedly connected with a supporting plate 4; a sliding groove is formed in one surface of each of the two brackets 3; a spring damper 5 is fixedly connected to one surface of each of the two support plates 4; one surface of each of the two spring shock absorbers 5 is fixedly connected with the cross beam 1;
A first connecting seat 6 and a second connecting seat 7 are fixedly connected to one surface of the cross beam 1 respectively; one surface of the two brackets 3 is respectively connected with a third connecting seat 8 and a fourth connecting seat 9 in a sliding way through a sliding chute; a first hinge rod 10 is hinged between the opposite surfaces of the first connecting seat 6 and the third connecting seat 8; a second hinge rod 11 is hinged between the opposite surfaces of the second connecting seat 7 and the fourth connecting seat 9; the inner wall of the second hinge rod 11 is hinged with the first hinge rod 10; two limiting springs 12 are fixedly connected between the opposite surfaces of the first hinge rod 10 and the second hinge rod 11.
Two guide sleeves 13 are arranged in the portal frame 2; two guide rods 14 are fixedly connected to one surface of the cross beam 1; the peripheral side surface of the guide rod 14 is in sliding connection with the guide sleeve 13; a reinforcing rod 15 is fixedly connected between the opposite surfaces of the portal frame 2; the side surface of the periphery of the reinforcing rod 15 is sleeved with a return spring 16; a connecting rod 17 is hinged to one surface of each guide rod 14; one end of each connecting rod 17 is hinged with a sliding sleeve 18; the inner walls of the two sliding sleeves 18 are both in sliding connection with the reinforcing rods 15; the two ends of the return spring 16 are fixedly connected with two sliding sleeves 18 respectively.
As shown in fig. 1-3, dampers 19 are fixedly connected between the opposite surfaces of the first connecting seat 6 and the supporting plate 4 and between the opposite surfaces of the second connecting seat 7 and the supporting plate 4.
Wherein, the two limit springs 12 are symmetrically distributed by taking the plane of the hinge shaft of the first hinge rod 10 and the second hinge rod 11 as the shaft; the reinforcing rod 15 is positioned above the two limiting springs 12.
The cross sections of the supporting plate 4 and the portal frame 2 are of U-shaped structures; the third connecting seat 8 and the fourth connecting seat 9 are both positioned inside the support plate 4.
Wherein, the two guide rods 14 are positioned between the two dampers 19; the spring damper 5 is located outside the damper 19.
One specific application of this embodiment is: the rear suspension is added with a third linkage damping mechanism and a fourth linkage damping mechanism on the basis of double damping of a traditional spring damper 5 and a damper 19, the third linkage damping mechanism is composed of a first hinge rod 10, a second hinge rod 11 and two limiting springs 12, the two limiting springs 12 can effectively ensure the transverse stability between a cross beam 1 and a portal frame 2 by limiting the expansion of the angles of the first hinge rod 10 and the second hinge rod 11, the damping purpose is achieved, meanwhile, the fourth linkage damping mechanism is composed of two guide rods 14, a reinforcing rod 15, a guide rod 13 and a reset spring 16, and the guide rod 16 directly acts on the cross beam 1 and the portal frame 2 through the cooperation of the hinge mechanisms of the first hinge rod 10 and the second hinge rod 11 and the first connecting seat 6, the second connecting seat 7, the third connecting seat 8 and the fourth connecting seat 9, the purpose of limiting the positions of the cross beam 1 and the portal frame 2 is achieved, wherein the third connecting seat 8 and the fourth connecting seat 9 can respectively slide on the two supports 3, the limiting mechanisms composed of the first hinge rod 10 and the second hinge rod 11 can effectively ensure the transverse stability between the cross beam 1 and the portal frame 2, and the relative displacement or the relative deflection between the cross beam 1 and the portal frame 2 can be effectively avoided, and the fourth linkage damping mechanism is composed of two guide rods 14, the guide rods 13 and the reset springs 16 and the guide rods 16 and the reset springs are directly used for achieving the purpose when the guide rods and the reset springs are used for forming the purposes.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (3)
1. The rear suspension of the cab of the medium-sized truck comprises a cross beam (1) and a portal frame (2), wherein the opposite surfaces of the portal frame (2) are fixedly connected with brackets (3), and one surface of each bracket (3) is fixedly connected with a supporting plate (4); a spring damper (5) is fixedly connected to one surface of each supporting plate (4); two spring damper (5) a surface all with crossbeam (1) fixed connection, its characterized in that:
A first connecting seat (6) and a second connecting seat (7) are fixedly connected to one surface of the cross beam (1) respectively; a third connecting seat (8) and a fourth connecting seat (9) are respectively and slidably connected to one surface of the two brackets (3); a first hinge rod (10) is hinged between the opposite surfaces of the first connecting seat (6) and the third connecting seat (8); a second hinge rod (11) is hinged between the opposite surfaces of the second connecting seat (7) and the fourth connecting seat (9); the inner wall of the second hinge rod (11) is hinged with the first hinge rod (10); two limit springs (12) are fixedly connected between the opposite surfaces of the first hinge rod (10) and the second hinge rod (11);
Two guide sleeves (13) are arranged in the portal frame (2); two guide rods (14) are fixedly connected to one surface of the cross beam (1); the peripheral side surface of the guide rod (14) is in sliding connection with the guide sleeve (13); a reinforcing rod (15) is fixedly connected between the opposite surfaces of the portal frame (2); a reset spring (16) is sleeved on the peripheral side surface of the reinforcing rod (15); a connecting rod (17) is hinged to one surface of each guide rod (14); one end of each connecting rod (17) is hinged with a sliding sleeve (18); the inner walls of the two sliding sleeves (18) are both in sliding connection with the reinforcing rods (15); two ends of the return spring (16) are fixedly connected with the two sliding sleeves (18) respectively; dampers (19) are fixedly connected between the first connecting seat (6) and the opposite surfaces of the supporting plate (4) and between the second connecting seat (7) and the opposite surfaces of the supporting plate (4); the two limit springs (12) are symmetrically distributed by taking the plane of the hinge shaft of the first hinge rod (10) and the hinge shaft of the second hinge rod (11) as the axis; the reinforcing rod (15) is positioned above the two limit springs (12).
2. A rear suspension for a cab of a medium truck according to claim 1, characterized in that the cross sections of the support plate (4) and the portal frame (2) are both of U-shaped configuration; the third connecting seat (8) and the fourth connecting seat (9) are both positioned on the inner side of the supporting plate (4).
3. A rear cab suspension for a medium truck according to claim 1, characterized in that both said guide bars (14) are located between both said dampers (19); the spring damper (5) is located outside the damper (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396122.XA CN110143240B (en) | 2019-05-14 | 2019-05-14 | Rear suspension for cab of medium truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396122.XA CN110143240B (en) | 2019-05-14 | 2019-05-14 | Rear suspension for cab of medium truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110143240A CN110143240A (en) | 2019-08-20 |
| CN110143240B true CN110143240B (en) | 2024-04-19 |
Family
ID=67595193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910396122.XA Active CN110143240B (en) | 2019-05-14 | 2019-05-14 | Rear suspension for cab of medium truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110143240B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1205427A1 (en) * | 2000-11-08 | 2002-05-15 | Still & Saxby S.à.r.l. | Industrial truck with an elastically supported operator's platform |
| CN201604704U (en) * | 2010-03-16 | 2010-10-13 | 包头北奔重型汽车有限公司 | Full-floating rear suspension device of automobile |
| CN102131691A (en) * | 2008-06-27 | 2011-07-20 | Zf腓特烈港股份公司 | Suspension device having active watt linkage |
| CN203111334U (en) * | 2012-12-27 | 2013-08-07 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Cab rear suspension device |
| CN204432806U (en) * | 2014-12-24 | 2015-07-01 | 陕西同力重工股份有限公司 | A kind of wide dumper side-mounted steering room back suspension combined type shock absorption device |
| CN107499396A (en) * | 2017-08-30 | 2017-12-22 | 东风商用车有限公司 | A kind of rear-suspending suspension beam assembly |
| CN210364097U (en) * | 2019-05-14 | 2020-04-21 | 江阴圣世杰机械制造有限公司 | Middle-sized truck cab rear suspension |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012200670A1 (en) * | 2012-01-18 | 2013-07-18 | Zf Friedrichshafen Ag | Cab suspension system with roll stabilization |
-
2019
- 2019-05-14 CN CN201910396122.XA patent/CN110143240B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1205427A1 (en) * | 2000-11-08 | 2002-05-15 | Still & Saxby S.à.r.l. | Industrial truck with an elastically supported operator's platform |
| CN102131691A (en) * | 2008-06-27 | 2011-07-20 | Zf腓特烈港股份公司 | Suspension device having active watt linkage |
| CN201604704U (en) * | 2010-03-16 | 2010-10-13 | 包头北奔重型汽车有限公司 | Full-floating rear suspension device of automobile |
| CN203111334U (en) * | 2012-12-27 | 2013-08-07 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Cab rear suspension device |
| CN204432806U (en) * | 2014-12-24 | 2015-07-01 | 陕西同力重工股份有限公司 | A kind of wide dumper side-mounted steering room back suspension combined type shock absorption device |
| CN107499396A (en) * | 2017-08-30 | 2017-12-22 | 东风商用车有限公司 | A kind of rear-suspending suspension beam assembly |
| CN210364097U (en) * | 2019-05-14 | 2020-04-21 | 江阴圣世杰机械制造有限公司 | Middle-sized truck cab rear suspension |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110143240A (en) | 2019-08-20 |
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