CN101293470A

CN101293470A - Special-shaped button reed axle

Info

Publication number: CN101293470A
Application number: CNA2008101224555A
Authority: CN
Inventors: 韩志业; 王国廷; 吴义
Original assignee: GUOYANG KANGDA AXLE CO Ltd
Current assignee: GUOYANG KANGDA AXLE CO Ltd
Priority date: 2008-05-28
Filing date: 2008-05-28
Publication date: 2008-10-29

Abstract

A deformed torsion spring axle is characterized by being provided with a slab torsion spring with a flat and square section; the end part of the torsion spring is fixedly provided with a side square cover; the middle part of the torsion spring is fixedly provided with a middle square cover; the outside of the torsion spring is protected and sheathed by an outer axle tube; the middle part of the outer axle tube is fixedly connected with the middle square cover; the two ends of the outer axle tube are empty covers; inner tubes which can rotate according to the outer axle tube are sheathed at the two sides of the middle square cover and in the outer axle tube; the outer side of the inner tube is fixedly connected with the side square cover; the inner end of the inner tube is an empty cover; an L-shaped torsion arm is arranged on a shaft head; the other end of the torsion arm is fixedly connected with the inner tube at the location of the side square cover; the axle of the invention has the advantages of simple structure and high bearing capacity, which can greatly reduce the elastic distance between empty load and heavy load by the torsion spring, thereby reducing the gravity center of the car body and improving the moving stability of the car body.

Description

Special-shaped button reed axle

Technical field

The present invention relates to support bridge, the supporting bridge on the more particularly especially mobile trailer.

Background technology

Referring to Fig. 1, for a long time, trailer supporting bridge all is to adopt two frame plate springs are set on vehicle bridge, comprises preceding leaf spring 1a that is positioned at propons and the back leaf spring 1b that is positioned on the back axle.Utilize the elastic deformation of leaf spring to reach the purpose of damping, the leaf spring form under unloaded and the heavily loaded two states has been shown among Fig. 1.Mainly adopt in the practical application in following problem:

1, in use elastic force is too little for the leaf spring structure, makes the elasticity distance of trailer under heavy duty and light condition too big, can reach 95mm, and such form has obviously reduced the stability of car body.

2, because the elasticity distance is big, the noise during the leaf spring elastic deformation is bigger.

3, the exposed version of leaf spring is very easily got rusty it, influences outward appearance, more influences service life, brings the functional reliability problem.

Summary of the invention

The present invention is for avoiding above-mentioned existing in prior technology weak point, provides that a kind of elastic force is big, the elasticity distance is little under zero load and the heavy condition, noise is low, can keep the special-shaped button reed axle of car body good stability.

Technical solution problem of the present invention adopts following technical scheme.

The constructional feature of special-shaped button reed axle of the present invention is, it is flat side's straight plate button spring that section is set, and the end of button spring fixedly installs the side cover, side's cover during the middle part of button spring fixedly installs; Bridge tube sheath beyond the outside of button spring, the middle part of outer bridge tube and middle side cover connect firmly, and the two ends of outer bridge tube are empty cover; The both sides of the side of being arranged in cover, outside be set with in the bridge tube can with outer bridge tube in relative rotation in pipe, connect firmly with the outer end and the side cover of interior pipe, the inner end of interior pipe is empty to be overlapped;

The L-shaped button arm that is provided with on spindle nose, the other end of button arm is captiveed joint with the interior pipe of cover position, side.

Constructional feature of the present invention also is: between bridge tube and the interior pipe bridge tube lining is set outside.

The outside of bridge tube fixedly installs the support of captiveing joint with compartment or equipment outside.

Compared with the prior art, beneficial effect of the present invention is embodied in:

1, the present invention is simple in structure, bearing capacity is strong.

2, the straight plate button of the little feasible utilization of damping angle of the present invention spring can reduce the elasticity distance between zero load and the heavy duty greatly, actual test has only 41mm, 95mm in prior art has reduced 54mm, thereby can effectively reduce body gravity, improve the stability that car body moves, improve operability.

3, the straight plate button of the present invention spring is built-in, basic noiselessness, non-corrosive, long service life.

Description of drawings

Fig. 1 is a leaf spring structural representation in the prior art.

Fig. 2 is a structural representation of the present invention.

Fig. 3 is the outer bridge tube assembly scheme drawing of the present invention.

Fig. 4 is the end view of Fig. 3.

Fig. 5 is a button arm assembly scheme drawing of the present invention.

Fig. 6 is the end view of Fig. 5.

Side's cover in leaf spring, 2 sedan-chair pepe bushings, 3 outer bridge tubes, 4 supports, 5 lubricating cups, 6 behind leaf spring, the 1b before number in the figure: the 1a, 8 spindle noses, 9 button arms, 10 sides cover, 11 interiorly manage, 12 hold out against screw, 13 jam nuts, 14 button springs.

Below by the specific embodiment, and in conjunction with the invention will be further described.

The specific embodiment

Referring to Fig. 2, it is flat side's straight plate button spring 14 that section is set, and the end of button spring 14 fixedly installs side cover 10, side's cover 6 during the middle part of button spring 14 fixedly installs; Bridge tube 3 sheaths beyond the outside of button spring 14, the middle part of outer bridge tube 3 and middle side cover 6 connect firmly, and the two ends of outer bridge tube 3 are empty cover; The both sides of the side of being arranged in cover 6, outside be set with in the bridge tube 3 can with outer bridge tube 3 in relative rotation in pipe 11, connect firmly with the outer end and the side cover 10 of interior pipe 11, the inner end of interior pipe 11 is empty to be overlapped;

The L-shaped button arm 9 that is provided with on spindle nose 8, the other end of button arm 9 is captiveed joint with the interior pipe 11 that 10 positions are overlapped in the side.

In concrete the enforcement, corresponding setting also comprises:

Fig. 3, shown in Figure 4, be pressed into bridge tube lining 2 between bridge tube 3 and the interior pipe 11 outside, outer bridge tube 3 fixedly is welded as integral structure with middle side's cover 6, the outside of bridge tube 3 outside, fixedly install the pair of brackets 4 of captiveing joint with compartment or equipment, for the friction between pipe 11 and the outer bridge tube in further reducing,, on the corresponding site of bridge tube lubricating cup 5 is set outside according to the lubrication system of routine.

Fig. 5, shown in Figure 6, for the ease of assembling, button arm 9 is to form the circumference solid welding with the one end to connect surely on the spindle nose 8, the fixing welding of the pipe end of the other end and interior pipe 11, in being fixedly welded on, side cover 10 manages in 11, the arm end of button arm 9 is to head in the end circular hole of button spring 14 by holding out against screw 12, and implements locking by jam nut 13.

Under the running condition, captive joint with compartment or equipment with pair of brackets 4, do not need directly to use leaf spring to connect, vehicle damping is that the torsion that relies on the button spring to form between bridge tube and the button arm is outside realized.

Claims

1, special-shaped button reed axle is characterized in that being provided with the straight plate button spring (14) that section is flat side, and the end of button spring (14) fixedly installs side cover (10), side's cover (6) during the middle part of button spring (14) fixedly installs; Bridge tube (3) sheath beyond the outside of button spring (14), the middle part of outer bridge tube (3) and middle side cover (6) connect firmly, and the two ends of outer bridge tube (3) are empty cover; The both sides of the side of being arranged in cover (6), outside be set with in the bridge tube (3) can with outer bridge tube (3) in relative rotation in pipe (11), connect firmly with the outer end and the side cover (10) of pipe (11) in described, the inner end of interior pipe (11) is empty to be overlapped;

Go up the L-shaped button arm (9) that is provided with at spindle nose (8), the other end of described button arm (9) is captiveed joint with the interior pipe (11) of cover (10) position, side.

2, special-shaped button reed axle according to claim 1 is characterized in that between bridge tube outside described (3) and the interior pipe (11) bridge tube lining (2) being set.

3, special-shaped button reed axle according to claim 1 is characterized in that the outside of bridge tube outside described (3) fixedly installing the support (4) of captiveing joint with compartment or equipment.