CN206130100U - Steering spindle dust cover - Google Patents

Abstract

The utility model discloses a steering spindle dust cover, including rubber body, slip -ring and felt ring, rubber body establishes the bell housing outside the steering spindle for the cover, the slip -ring with the felt ring sets up in the rubber body and with the steering spindle is closely laminated, steering spindle dust cover still includes the sealing layer, the outer lane of sealing layer with rubber body connects, the inner circle of sealing layer with the steering spindle is closely laminated. Owing to increased the one deck sealing layer on steering spindle dust cover, the sealing layer can play the effect that blocks the foreign matter, and the reduction foreign matter can block a part of noise that comes from the engine direction simultaneously to the influence of slip -ring and felt ring, consequently can completely cut off the noise effectively, promotes a steering system's NVH performance.

Description

Turn to shaft dust protector

Technical field

The utility model is related to automobile steering system, more particularly to a kind of steering shaft dust protector.

Background technology

As shown in Figure 1-2, turning to shaft dust protector 1 ' is used to be set in steering spindle 2 ', and existing steering shaft dust protector 1 ' is wrapped Rubber body 11 ', slip ring 12 ' and felt ring 13 ' are included, shaft dust protector 1 ' is turned to by slip ring 12 ' and felt ring 13 ' and is turned Seal to axle 2 ', for stopping dust, noise etc. from engine side.

But, wash away when automobile wading or by water, due to body vibrations or install coordinate deviation cause steering spindle 2 ' with The magnitude of interference of slip ring 12 ' or felt ring 13 ' reduces, and causes sealing function to weaken, and the noise of engine side can be through steering Gap between shaft dust protector 1 ' and steering spindle 2 ', it is impossible to play a part of effectively to completely cut off noise.

Therefore, it is necessary to design a kind of steering shaft dust protector that can effectively completely cut off noise.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of steering that can effectively completely cut off noise Shaft dust protector.

The technical solution of the utility model provides a kind of steering shaft dust protector, including rubber body, slip ring and felt ring, The rubber body is the bell-jar being set in outside steering spindle, and the slip ring and the felt ring are arranged on the rubber body Interior and be brought into close contact with the steering spindle, the steering shaft dust protector also includes sealant, the outer ring of the sealant with it is described Rubber body connects, and the inner ring of the sealant is brought into close contact with the steering spindle.

Further, the rubber body is provided with the plastic sheath of annular, and the sealant is with the plastic sheath by note Modeling is connected as connection.

Further, the sealant is located at the side of close engine on the steering shaft dust protector, the slip ring It is located on the steering shaft dust protector away from the side of the engine with the felt ring.

Further, otch is offered on the inner ring of the sealant.

Further, the otch has multiple, exhales from the center of the inner ring, and uniformly, be spaced apart.

Further, the otch is straight line, or wave, or curve.

Further, the inner ring of the sealant coordinates with the steering shaft clearance.

Further, the sealant is made up of rubber.

After using above-mentioned technical proposal, have the advantages that：

Due to increased one layer of sealant on shaft dust protector is turned to, sealant can play stop foreign matter effect, reduce Impact of the foreign matter to slip ring and felt ring, while noise of the part from engine direction can be stopped, therefore, it is possible to have Effect ground isolation noise, lifts the NVH performances of steering.

Description of the drawings

Referring to accompanying drawing, disclosure of the present utility model will be easier to understand.It should be understood that：These accompanying drawings are used only for Descriptive purpose, and be not intended to be construed as limiting protection domain of the present utility model.In figure：

Fig. 1 is the stereogram of existing steering shaft dust protector；

Fig. 2 is sectional view when existing steering shaft dust protector coordinates with steering spindle；

Fig. 3 is the stereogram that shaft dust protector is turned in the embodiment of the utility model one；

Fig. 4 is that sectional view when shaft dust protector coordinates with steering spindle is turned in the embodiment of the utility model one；

Fig. 5 is the partial sectional view that shaft dust protector is turned in the embodiment of the utility model one；

Fig. 6 is the one side stereogram of plastic sheath and sealant in the embodiment of the utility model one；

Fig. 7 is the another side stereogram of plastic sheath and sealant in the embodiment of the utility model one；

Fig. 8 is the partial enlarged drawing of sealant in the embodiment of the utility model one.

The reference table of comparisons：

1 '-turn to shaft dust protector 2 '-steering spindle

11 '-rubber body 12 '-slip ring 13 '-felt ring

1- turns to shaft dust protector 2- steering spindles

11- rubber body 12- slip ring 13- felt rings

14- sealant 15- plastic sheath 141- otch

151- buckles

Specific embodiment

Below in conjunction with the accompanying drawings further illustrating specific embodiment of the present utility model.

It is easy to understand, according to the technical solution of the utility model, in the case where the utility model connotation is not changed, this area The various structures mode that can mutually replace of those skilled in the art and implementation.Therefore, detailed description below and Accompanying drawing is only the exemplary illustration to the technical solution of the utility model, and is not to be construed as whole of the present utility model or is considered as Utility model technical scheme is defined or limited.

Up, down, left, right, before and after, front, the back side, top, bottom mentioned in this manual or may mention etc. Orientation term is defined relative to the construction shown in each accompanying drawing, and they are relative concepts, it is therefore possible to can root Correspondingly changed according to its residing diverse location, different use states.So, also should not be by these or others side Position term is construed to restricted term.

In the present embodiment, as shown in Figure 3-4, shaft dust protector 1, including rubber body 11, slip ring 12 and felt ring are turned to 13, rubber body 11 is the bell-jar being set in outside steering spindle 2, and slip ring 12 and felt ring 13 are arranged in rubber body 11 simultaneously It is brought into close contact with steering spindle 2, turning to shaft dust protector 1 also includes sealant 14, and the outer ring of sealant 14 is connected with rubber body 11, The inner ring of sealant 14 is brought into close contact with steering spindle 2.

Wherein, rubber body 11 is made up of rubber, and rubber body 11 includes two-layer, wherein one layer is used to install slip ring 12, another layer is used to install felt ring 13.

Slip ring 12 is made of plastics, and felt ring 13 includes felt circle and plastic channel, and plastic channel is arranged on rubber body 11 Interior, felt circle is installed in plastic channel.The inner ring of slip ring 12 and felt ring 13 is contacted with the outer circumference surface of steering spindle 2, is used In sealing steering spindle 2.

Due to increased one layer of sealant 14 on shaft dust protector 1 is turned to, sealant 14 can play stop to the present embodiment Foreign matter is acted on, for example：Water, dust, silt etc..Impact of the foreign matter to slip ring 12 and felt ring 13 is reduced, while can stop A part, therefore, it is possible to effectively completely cut off noise, lifts NVH (noise, the vibration of steering from the noise in engine direction With sound vibration roughness) performance.

In the present embodiment, as shown in figure 4, the side that sealant 14 is located at close engine on steering shaft dust protector 1 (is schemed 4 left side), slip ring 12 and felt ring 13 are located at and turn on shaft dust protector 1 away from the side (i.e. the right side of Fig. 4) of engine.

Sealant 14 is located near the side of engine, i.e., positioned at slip ring 12 and the front of felt ring 13.Can be effective Play protection slip ring 12 and felt ring 13, from the impact of water jets under high pressure.

In the present embodiment, sealant 14 is located at the leftmost side of rubber body 11.

Alternatively, sealant 14 can also be located at the position between the leftmost side of rubber body 11 and slip ring 12.

In the present embodiment, as illustrated in figs. 5-7, rubber body 11 is provided with the plastic sheath 15 of annular, sealant 14 and plastics Set 15 is connected as one by injection.

Specifically, plastic sheath 15 is made up of the plastics with certain degree of hardness.The substantially oblong-shaped endless belt of plastic sheath 15. Plastic sheath 15 is arranged on the inside of rubber body 11, can support the bell-jar of rubber body 11.Plastic sheath 15 is provided with card Button 151, buckle 151 is connected with vehicle body, and for will turn to shaft dust protector 1 vehicle body is installed to.Plastic sheath 15 itself and steering spindle 2 Between do not contact, and maintain a certain distance.

The outer ring of sealant 14 is just on the inner ring of plastic sheath 15.The inner ring of sealant 14 is then outer with steering spindle 2 Periphery is brought into close contact.Sealant 14 serves the effect for stopping foreign matter, and the isolation of sealant 14 can reduce foreign matter to sliding The impact of ring 12 and felt ring 13, makes the gap between slip ring 12 and felt ring 13 and steering spindle 2 diminish, even disappear, from And ensure that slip ring 12 and felt ring 13 can stop the effect from engine noise.Meanwhile, sealant 14 itself also can Noise of enough stop portions from engine.

Alternatively, sealant 14 can not also be connected by injection with plastic sheath 15, can be by bonding and plastic sheath 15 Connection, directly can be connected with sealant 14 with rubber body 11.

In the present embodiment, as shown in figs 6-8, otch 141 is offered on the inner ring of sealant 14.

When the position of steering spindle 2 is deviateed, a certain region between steering spindle 2 and sealant 14 can cross close contact, When impacting with high pressure sealant 14, the contact of this tension can produce excessive noise.Therefore, in order to avoid this excessive is made an uproar Sound, opens up otch 141 on the inner ring of sealant 14, and when the positional deviation of steering spindle 2, otch 141 can be squeezed, and be expanded close The inner ring of sealing 14, it is to avoid close contact occurred between the inner ring of sealant 14 and the outer circumference surface of steering spindle 2, finally avoids producing The excessive noise of life.

In the present embodiment, as shown in figure 8, otch 141 has four, exhale from the center of inner ring, and uniformly, interval point Cloth.

Alternatively, otch 141 can also be for more than one, or two, or two.

In the present embodiment, as shown in figure 8, otch 141 is straight line.

Alternatively, otch 141 can also be wave, or curve.

In the utility model, the diameter of the inner ring of sealant 14 is slightly larger than steering spindle 2, i.e. gap and coordinates.Do not affecting to turn In the case of moving to axle 2, gluing, sealing can be played a part of.If the tension that the inner ring of sealant 14 is pasted with steering spindle 2, The motion of steering spindle 2 can be not only affected, excessive noise can be also produced.

It is preferred that the diameter of the inner ring of sealant 14 1mm bigger than the diameter of steering spindle 2.

In the present embodiment, sealant 14 is made up of rubber.

Alternatively, sealant 14 can be being made up of other materials with certain flexibility and elasticity.

Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that general for this area For logical technical staff, on the basis of the utility model principle, some other modifications can also be made, also should be regarded as this practicality New protection domain.

Claims (8)

1. a kind of to turn to shaft dust protector, including rubber body, slip ring and felt ring, the rubber body is to be set in steering spindle Outer bell-jar, the slip ring and the felt ring are arranged in the rubber body and are brought into close contact with the steering spindle, Characterized in that, the steering shaft dust protector also includes sealant, the outer ring of the sealant is connected with the rubber body, institute The inner ring and the steering spindle for stating sealant is brought into close contact.

2. steering shaft dust protector according to claim 1, it is characterised in that the rubber body is provided with the plastics of annular Set, the sealant is connected as one with the plastic sheath by injection.

3. steering shaft dust protector according to claim 1, it is characterised in that it is dust-proof that the sealant is located at the steering spindle The side of close engine on cover, the slip ring and the felt ring are located on the steering shaft dust protector and start away from described The side of machine.

4. steering shaft dust protector according to claim 1, it is characterised in that offer on the inner ring of the sealant and cut Mouthful.

5. steering shaft dust protector according to claim 4, it is characterised in that the otch has multiple, from the inner ring Center exhales, and uniformly, be spaced apart.

6. steering shaft dust protector according to claim 4, it is characterised in that the otch is straight line, or wave, or bent Line.

7. the steering shaft dust protector according to any one of claim 1-6, it is characterised in that the inner ring of the sealant and institute State steering shaft clearance to coordinate.

8. the steering shaft dust protector according to any one of claim 1-6, it is characterised in that the sealant is by rubber system Into.