CN101700730A - Suspension device of semitrailer - Google Patents
Suspension device of semitrailer Download PDFInfo
- Publication number
- CN101700730A CN101700730A CN200910221211A CN200910221211A CN101700730A CN 101700730 A CN101700730 A CN 101700730A CN 200910221211 A CN200910221211 A CN 200910221211A CN 200910221211 A CN200910221211 A CN 200910221211A CN 101700730 A CN101700730 A CN 101700730A
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- Prior art keywords
- spring
- bracket
- suspension
- carrier
- superimposed trailer
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Abstract
The invention relates to a suspension device of a semitrailer, belonging to the technical field of transportation. Suspension supports (2,4) of the suspension device are arranged in the middle parts of road springs (15,16) by support seats (9,12); dumb irons (8,11,6) are fixed above axles (7, 10 and 13); the front end of the front road spring (15) is arranged on the front dumb iron (8), and the rear end is inserted into the middle dumb iron (11); and the front end of the rear road spring (16) is arranged on the middle dumb iron (11) by a hinge pin (3), and the rear end is arranged on the rear dumb iron (6) by a hinge pin (5). The suspension device can not only effectively prevent spring breaking, shaft breaking and tyre burst of the semitrailer but also can avoid the tyre-rubbing phenomenon.
Description
Technical field
The invention belongs to technical field of traffic transportation, specifically, relate to a kind of suspension gear of superimposed trailer.
Background technology
The superimposed trailer suspension gear is one of major part of superimposed trailer, and it mainly acts on is superimposed trailer axletree movable parts and superimposed trailer crossbeam effectively and reasonably, be tied securely.The suspension gear of public superimposed trailer, suspension holdfast is welded on superimposed trailer main longitudinal grider lower end, the end of steel spring assigns in the suspension holdfast, the middle part is connected by the axletree of " U " shape bolt with its below, and the load of bearing on the vehicle body passes to steel spring by suspension holdfast and passes on the axletree again; One side of axletree is connected with an adjacent spring carrier by tension bar, is used for bearing horizontal force.Adopt the superimposed trailer of this suspension gear, as the wheel that has of wheel kiss the earth when unsettled, the phenomenon that whole load of superimposed trailer are only born by the wheel of kiss the earth will appear, this superimposed trailer if when lade at the uneven road traveling that jolts, because wheel is unsettled inevitable, thereby very easily causes wheel, axletree and steel spring to damage because of exceeding its strength limit.
China's utility model patent specification sheets discloses " suspension gear of superimposed trailer " (notification number CN 201065056Y of the applicant on May 28th, 2008, application number 200720126993.2), this patent is welded on spring carrier the top of vehicle bridge, be respectively equipped with slotted eye at propons spring carrier and back axle spring carrier bottom, the bottom of steel spring is provided with the folding hook, and this folding hook is hooked on respectively in the slotted eye of described propons and back axle spring bracket; On carrier base, carrier base is installed in middle part, suspension holdfast upper end and the welding of semi-trailer frame crossbeam of steel spring with " U " shape bolt by pivot knuckles in the suspension holdfast bottom.Use the superimposed trailer of this suspension gear, as the wheel that has of wheel kiss the earth when unsettled, under the spring force effect of steel spring, steel spring can be around the pivot rotation of hinged suspension holdfast and carrier base, driving unsettled wheel active kiss the earth is that superimposed trailer provides support power, use the superimposed trailer of this suspension gear,, also can not cause disconnected spring, off-axis because of wheel is unsettled, blow out even when fully loaded with cargo, travel on the uneven road surface of jolting.Find in the use, this patent invar laminated spring is to be connected with spring carrier by the folding hook, and have the following disadvantages: if a folding hook is connected not tight with spring carrier or the fracture of folding hook, the steel spring obscission will appear, cause that vehicle bridge, tire break away from, displacement, might produce disconnected spring, off-axis, blow out, consequence such as overturning.Two, because folding is hooked in the bigger gap of existence when being connected with slotted eye, installation error in addition, might cause vehicle bridge and vehicle crossbeam to present the out of plumb state, cause tire in rolling process, on same direction not cause that with working direction the tire phenomenon appears gnawing in Abnormity abrasion about tyre.
Summary of the invention
The objective of the invention is to solve the deficiency that above-mentioned patent exists, a kind of suspension gear of superimposed trailer be provided, this suspension gear can more effectively prevent superimposed trailer break spring, off-axis, blow out, can avoid gnawing the generation of tire phenomenon again.
For achieving the above object, the suspension gear of superimposed trailer of the present invention comprises suspension holdfast, vehicle bridge, spring carrier, steel spring, the suspension holdfast lower end by pivot knuckles on carrier base, carrier base is installed in the middle part of steel spring with " U " shape bolt, spring carrier welds or is bolted to " U " shape the top of vehicle bridge, rear portion at front spring spring bracket and light plate spring bracket, and the front portion of rear leaf spring support is provided with pin shaft hole, the front end of the below spring plate of front spring spring and rear leaf spring, and the rear end of the below spring plate of rear leaf spring is provided with pin shaft hole; Front spring spring front end is installed on the front spring spring bracket by bearing pin, and the rear end assigns in the light plate spring bracket; The rear leaf spring front end is installed on the light plate spring bracket with bearing pin, and the rear end is installed on the rear leaf spring support with bearing pin.
The present invention in aforementioned patent number is on 200720126993.2 the patent basis, the folding hook of original steel spring is connected to change into bearing pin connect.Compare because the bearing pin connection is connected with the folding hook, contact surface is big, bearing surface is big, and structure is more reasonable, and the possibility of connecting portion fracture is very little; In addition because steel spring is to be installed on the spring carrier by bearing pin, the axial intermittence of bearing pin and pin shaft hole is very little, the connection location of steel spring is determined easily, be easy to avoid installation error, therefore the present invention can more effectively prevent the break generation of spring, off-axis, the phenomenon of blowing out of superimposed trailer, can avoid again gnawing the tire phenomenon because of what vehicle bridge and vehicle crossbeam presented that the out of plumb state causes.
Description of drawings
The present invention will be described below in conjunction with drawings and Examples.
Fig. 1 is a front view of the present invention.
Fig. 2 is a birds-eye view of the present invention.
The specific embodiment
As shown in Figure 1 and Figure 2, spring carrier 8,11,6 welds or is bolted to " U " shape the top of vehicle bridge 7,10,13, be provided with pin shaft hole (left is preceding among the setting figure) at front spring spring bracket 8 rear portions, the front end of the below spring plate of front spring spring 15 is provided with pin shaft hole; Front spring spring 15 front ends are installed on the front spring spring bracket 8 by bearing pin 1, and the rear end assigns in the light plate spring bracket 11.Front portion at light plate spring bracket 11 rear portions and rear leaf spring support 6 is provided with pin shaft hole equally, and the front and back end of the below spring plate of rear leaf spring 16 all is provided with pin shaft hole; Rear leaf spring 16 front ends are installed on the light plate spring bracket 11 with bearing pin 3, and the rear end is installed on the rear leaf spring support 6 with bearing pin 5.Suspension holdfast 2,4 lower ends by pivot knuckles on carrier base 9,12; Carrier base 9,12 usefulness " U " shape bolts are installed in the middle part of steel spring 15,16, and steel spring can be rotated around described center shaft.
The present invention is identical with the connection mode and the prior art of superimposed trailer, also is suspension holdfast 2,4 is welded or be fixed by bolts to superimposed trailer main longitudinal grider 14 lower ends.Compare with communal technique, structure of the present invention is more simple, is example with graphic three superimposed trailers, communal technique four groups of suspension holdfasts of needs and three pairs of tension bars, and the present invention is without tension bar, two groups of suspension holdfasts of needs.
This Figure of description only shows the suspension gear of three common superimposed trailers, and obviously, technical scheme of the present invention also can be used for superimposed trailer and the another kind of at present two common superimposed trailers more than three.
Claims (1)
1. the suspension gear of a superimposed trailer, comprise suspension holdfast (2,4), vehicle bridge (7,10,13), spring carrier (8,11,6), steel spring (15,16), suspension holdfast (2,4) lower end by pivot knuckles at carrier base (9,12) on, carrier base (9,12) be installed in steel spring (15 with " U " shape bolt, 16) middle part, spring carrier (8,11,6) welding or be bolted to vehicle bridge (7 with " U " shape, 10,13) top, it is characterized in that: at the rear portion of front spring spring bracket (8) and light plate spring bracket (11), and the front portion of rear leaf spring support (6) is provided with pin shaft hole, the front end of the below spring plate of front spring spring (15) and rear leaf spring (16), and the rear end of the below spring plate of rear leaf spring (16) is provided with pin shaft hole; Front spring spring (15) front end is installed on the front spring spring bracket (8) by bearing pin (1), and the rear end assigns in the light plate spring bracket (11); Rear leaf spring (16) front end is installed on the light plate spring bracket (11) with bearing pin (3), and the rear end is installed on the rear leaf spring support (6) with bearing pin (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910221211A CN101700730A (en) | 2009-10-29 | 2009-10-29 | Suspension device of semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910221211A CN101700730A (en) | 2009-10-29 | 2009-10-29 | Suspension device of semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101700730A true CN101700730A (en) | 2010-05-05 |
Family
ID=42155666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910221211A Pending CN101700730A (en) | 2009-10-29 | 2009-10-29 | Suspension device of semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101700730A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196818A (en) * | 2015-08-31 | 2015-12-30 | 李晓秋 | Steel spring plate combined suspension device for vehicle |
| CN104827842B (en) * | 2014-06-19 | 2017-07-11 | 北汽福田汽车股份有限公司 | Suspension system and vehicle |
-
2009
- 2009-10-29 CN CN200910221211A patent/CN101700730A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827842B (en) * | 2014-06-19 | 2017-07-11 | 北汽福田汽车股份有限公司 | Suspension system and vehicle |
| CN105196818A (en) * | 2015-08-31 | 2015-12-30 | 李晓秋 | Steel spring plate combined suspension device for vehicle |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100505 |