CN202991970U

CN202991970U - Parabolic spring for motorbuses

Info

Publication number: CN202991970U
Application number: CN2012206026872U
Authority: CN
Inventors: 沈四喜; 陆家群
Original assignee: HUNAN YITONG AUTOMOBILE PARTS SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: HUNAN YITONG AUTOMOBILE PARTS SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2012-11-15
Filing date: 2012-11-15
Publication date: 2013-06-12
Anticipated expiration: 2022-11-15

Abstract

A parabolic spring for motorbuses comprises four reeds stacked, two sides and the middles of the four reeds are fixed through hoops and central screw and nut pairs, ends of the uppermost first reed and ends of the second and third reeds below the first reed are thicker than sides, a lower shock absorber support is arranged on the lower portion of the fourth reed, and the lower support is formed by bending a reed lug from the middle. The parabolic spring is simple in process, convenient to process and easy to assemble, and is applicable to motorbuses and engineering trucks since fatigue life thereof is effectively prolonged.

Description

The few sheet spring of a kind of motorbus

Technical field

The utility model relates to the elastic element of automobile suspension system, is specially a kind of few sheet spring of motorbus that can be used for passenger vehicle and especially be fit to 12 meter rulers cun motorbus, simultaneously, also is applicable to other heavy engineering vehicles.

Background technique

Globalization along with automotive industry, automotive global production brings new opportunities and challenges with service to the auto parts and components MANUFACTURER, few sheet spring is as important composition parts of car comfort and Security, more and more in the practical application of automotive field, plate spring assembly with respect to multi-disc, few sheet spring has reduced the weight of plate spring assembly, the energy and the consumption that reduces vehicle fuel have been saved, reduced the friction between plate spring sheet, no matter be passenger vehicle or load-carrying vehicle, can effectively improve its riding comfort, therefore few sheet spring is used more and more extensive.

Yet in the prior art, Few Leaf Spring generally is used for light-duty vehicle and Large and medium buses, because the surface requirements of Few Leaf Spring is higher, and the breach or the hole that generally do not allow easy generation stress to concentrate; And in order to reduce the friction between sheet and sheet, Few Leaf Spring generally adopts the way at middle and end shimming, yet in use must upgrade the pad that weares and teares.Motorbus is because vehicle body is longer, and the load that carries is larger, accelerates the wearing and tearing of pad, upgrades as need, causes the inconvenience of operation.

The model utility content

The technical problem that the utility model solves is to provide a kind of motorbus few sheet spring, to solve the shortcoming in the above-mentioned background technology.

The technical problem that the utility model solves realizes by the following technical solutions:

the few sheet spring of a kind of motorbus, comprise four stacked reeds, four reeds in both sides and intermediate portion be fixed by the bolt and nut pair at clip and center respectively, in described four layers of reed, be positioned at the first leaf end of the superiors and be positioned at second of the first reed bottom, the end of the 3rd reed all is thicker than by side, respectively to strengthen grasswort intensity, reduce the grasswort working stress, and in alternative tratitional technology first, two, second, three and the 3rd, need to install additional the pad that reed is separated between four ends, simultaneously, also be provided with a lower support of shock absorber in the bottom of the 4th reed, this lower support frame is by the reed grasswort, moulding is purchased lower support of shock absorber and spare part specially to substitute main engine factory.

In the utility model, thereby all adopting rolling processing mode to reach with the weight that reduces leaf spring, each reed of described few sheet spring reduces costs.

In the utility model, described lower support of shock absorber is connected and fixed by described bolt and nut pair in the neutral position of four layers of reed.

In the utility model, described the 4th reed takes the mode of two ends riveted joint clamp to fix, and can make reed not produce wrong sheet.

Advantage of the present utility model and beneficial effect are:

1, with the first leaf end thickening, to strengthen grasswort intensity, reduce the grasswort working stress, improve product working life;

2, end-thickened with second, third reed installed pad additional and reed separated to substitute the end, can save die head film perforation manufacturing procedure simultaneously and reach the effect that reduces costs and prevent friction damage shot-peening hardening Plastic layer between sheet with optimization technological process;

3, cancel end pad between sheet and sheet, the replacing between pad of avoiding wearing and tearing.To reach the effect that improves the life-span and reduce costs;

4, thereby the rolling processing mode of each sheet employing reaches with the weight that reduces leaf spring and reduces costs;

5, directly again purchase lower support of shock absorber and spare part with reed grasswort, moulding lower support of shock absorber to reduce main engine factory, reduce costs to reach;

6, require 80,000 times greater than NBS fatigue life, can reach 110,000 times to improve service time.

Description of drawings

Fig. 1 is the schematic diagram of the utility model preferred embodiment.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

A kind of motorbus preferred embodiment of sheet spring less referring to Fig. 1, in the present embodiment, comprise four layers of stacked reed, be respectively from top to bottom the first reed 1, the first reed 2, the first reed 3, the first reed 4, its first reed 1 is provided with grasswort 9 in arranged on left and right sides, and thicken to strengthen grasswort 9 intensity in the both side ends of reed, reduce the working stress of grasswort 9.The second reed 2 is at the left side grasswort, and the left side grasswort of this grasswort outsourcing the first reed 1, the second reed 2 and the 3rd reed 3 are end-thickened to be separated reed to substitute end dress pad, between the minimizing sheet, the buying of friction and end pad improves working life, and the 4th reed 4 is common reed, its underpart is provided with a lower support of shock absorber 6, and this lower support of shock absorber 6 can be used for cancelling processing end die head film perforation process optimization technological process; Directly pack assembly into to substitute external lower support of shock absorber with the reed grasswort, reduce main engine factory and again purchase lower support of shock absorber and relevant spare part.

Four layers of reed in above-described embodiment structure are fixed by clip 8 in both sides, and jointly are fixed by the bolt and nut pair 7 at center at four layers of reed of intermediate portion and lower support of shock absorber 6, simultaneously, are provided with intermediate washer 5 between each layer reed.

Above demonstration and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. a motorbus lacks the sheet spring, comprise four layers of stacked reed, four layers of reed in both sides and intermediate portion be fixed by the bolt and nut pair at clip and center respectively, it is characterized in that, in described four layers of reed, the end that is positioned at the first leaf end of the superiors and is positioned at second, third reed of the first reed bottom is thicker than by side, simultaneously, also be provided with a lower support of shock absorber in the bottom of the 4th reed, this lower support frame is by the reed grasswort and be bent in the neutral position.

2. the few sheet spring of a kind of motorbus according to claim 1, is characterized in that, each reed of described few sheet spring adopts rolling processing mode to make.

3. the few sheet spring of a kind of motorbus according to claim 1, is characterized in that, lower support of shock absorber is connected and fixed by the bolt and nut pair in the neutral position of four layers of reed.

4. the few sheet spring of a kind of motorbus according to claim 1, is characterized in that, described the 4th reed takes the mode of two ends riveted joint clamp to fix.