CN201190760Y

CN201190760Y - Guider for shock absorber for automobile

Info

Publication number: CN201190760Y
Application number: CNU2008200862535U
Authority: CN
Inventors: 徐信国
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-09
Filing date: 2008-05-09
Publication date: 2009-02-04
Anticipated expiration: 2018-05-09

Abstract

The utility model discloses a guide device for automobile dampers, comprising an oil hole communicating a working cylinder and an oil storage cylinder, wherein the width (a') of the inner port (1) of the oil hole is narrower than the width (a) of an outer diameter cut (3) of the oil hole (2). Since the oil hole adopts a structure whose inner part is narrower than the outer part, the oil hole of the guide device can be successfully demoulded from inner to outer when in die-casting formation, therefore, the guide device can be formed in one time to reduce mechanical processing cost and avoid the oil seal from explosion.

Description

The guider of vehicle shock absorber

Technical field

The utility model relates to a kind of auto parts, specifically is a kind of guider of vehicle shock absorber.

Background technique

Vehicle shock absorber is one kind damping member, it is one of important composition element of automobile suspension system, smoothness, travelling comfort, Security, steering operation and passing ability to vehicle driving play conclusive effect, and wherein guider is one of strength member in the vehicle shock absorber.Guider has played good leading role to the motion of piston rod in the vibration damper, and has born the huge lateral force that produces therefrom, and the oilhole by guider is communicated with clutch release slave cylinder and oil storage cylinder simultaneously.Because guider is a powder metallurgy forming, the oilhole of existing guider generally adopts the structure of inner wide and outer narrow, be the width of the oilhole place width of oil seal end in the product greater than the oilhole place of maximum outside diameter breach, then because the restriction of extrusion process, the oilhole of guider can't carry out withdrawing pattern from inside to outside, therefore can't a compression moulding, but need to adopt follow-up machining.Like this, on the one hand, because the personal factor that machining exists is too many, the phenomenon of processing occurs leaking through regular meeting, all hole even examine the also very difficult product that guarantees entirely, major hidden danger has been buried in this explosion for oil sealing in the vibration damper using process; On the other hand, machining also makes the manufacturing procedure of product increase, thereby has increased the fabricating cost of product.

The model utility content

Technical problem to be solved in the utility model is that a kind of guider that can avoid oil sealing explosion phenomenon in the vehicle shock absorber, reduce the vehicle shock absorber of production cost is provided.

For solving the problems of the technologies described above, the guider of a kind of vehicle shock absorber that the utility model provides comprises the oilhole that connects clutch release slave cylinder and oil storage cylinder, and the width of described oilhole internal orifice end is less than the width of the external diameter breach of oilhole.

After adopting above structure, because narrow outer wide structure in oilhole structurally adopts, make the oilhole of the guider withdrawing pattern that when die cast, can be well on from inside to outside, therefore guider can once-through, thereby reduced the machining cost of product, more avoided taking place the phenomenon of oil sealing explosion.

Description of drawings

Shown in Figure 1 is the sectional structure schematic representation of the guider of prior art;

Fig. 2 is a K-K cross-sectional schematic among Fig. 1;

Fig. 3 be among Fig. 1 P to schematic representation;

Shown in Figure 4 is the sectional structure schematic representation of the guider of the utility model vehicle shock absorber;

Fig. 5 is a K-K cross-sectional schematic among Fig. 4;

Fig. 6 be among Fig. 4 P to schematic representation.

Wherein, the utility model: 1, oilhole internal orifice end; 2, oilhole; 3, oilhole external diameter breach; A, gap width; A ', internal orifice end width.

Prior art: 11, oilhole internal orifice end; 22, oilhole; 33, oilhole external diameter breach; A1, gap width; A ' 1, internal orifice end width.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.

By the guider schematic representation of the prior art vehicle shock absorber of Fig. 1～shown in Figure 3 as can be known, the oilhole of original guider generally adopts the structure of inner wide and outer narrow, be the width a1 of the width a ' 1 of oilhole internal orifice end 11 greater than oilhole external diameter breach 33, so just can not once-through.

By the guider schematic representation of the utility model vehicle shock absorber of Fig. 4～shown in Figure 6 as can be known, this guider comprises the oilhole 2 that connects clutch release slave cylinder and oil storage cylinder, and the width a ' of described oilhole 2 internal orifice ends 1 is less than the width a of the external diameter breach 3 of oilhole 2.

Claims

1, a kind of guider of vehicle shock absorber comprises the oilhole (2) that connects clutch release slave cylinder and oil storage cylinder, it is characterized in that: the width of described oilhole (2) internal orifice end (1) (a ') is less than the width (a) of the external diameter breach (3) of oilhole (2).