CN205930228U - A limiting casing pipe for limiting engine ultimate displacement - Google Patents

Abstract

The utility model relates to a limiting casing pipe for limiting engine ultimate displacement belongs to auto parts technical field, the installation structure comprises a sleeve, the sleeve pipe inboard is fixed with " C " spacing support appears, the intraductal suspension cushion that is provided with of cover, be provided with limit stop in the suspension cushion, limit stop mutually supports with spacing support, spacing support length is L, sheathed tube length is H, the length L of spacing support and the geometrical relationship between the sheathed tube length H do: 1 2H <= L <= 45H, the spacing support outside is provided with the vulcanite layer. The design on vulcanite layer can improve the gentle softness on spacing support surface among this technical scheme, improves the shock attenuation and keeps apart the effect, can avoid spacing support excessive wear simultaneously, and vulcanite piece hardness is higher than using among the prior art, and structural stability is better to it is spacing fast to make engine mount bracket obtain, avoids engine and peripheral part to produce and interferes.

Description

A kind of limit casing for limiting Engine Limit displacement

Technical field

This utility model is related to a kind of limit casing for limiting Engine Limit displacement, belongs to auto parts technology neck Domain.

Background technology

On current field, fix in order to row constraint is entered to car engine suspension, typically pass through position limiting structure to starting Machine suspends into row constraint, prevents the vibrations of electromotor from leading to part displacement to misplace, conventional position limiting structure includes limit as indicated with 1 Position sleeve pipe 1, the design of the limit casing used by automobile typically all carrys out spacing starting in the inner side vulcanite block of limit casing 1 The extreme displacement of machine, its rubber hardness itself relatively low it is difficult to meet spacing design requirement, therefore Engine Limit deformation is big, holds Easily produce and interfere with peripheral limit, lead to car load to have abnormal sound, there is potential safety hazard.

Content of the invention

For solving problems of the prior art, this utility model provides one kind and is used for limiting Engine Limit displacement Limit casing, concrete technical scheme is as follows：

A kind of limit casing for limiting Engine Limit displacement, including sleeve pipe, is fixed with " " shape inside described sleeve pipe Limited support, is provided with suspending cushion in described sleeve pipe, is provided with positive stop in described suspending cushion, described positive stop with Limited support cooperates, and described limited support length is L, and the length of described sleeve pipe is H, length L of described limited support with Geometrical relationship between length H of sleeve pipe is：1/2H≤L≤4/5H, is provided with vulcanised rubber layer outside described limited support.

As the improvement of technique scheme, described positive stop structure is " " shape and between having and limited support between Gap.

In technique scheme, the length of limited support is shorter, effectively can maximize limit while reducing cost of material The structural strength of position support, and vulcanised rubber layer be designed to improve the pliability on limited support surface, improve damping every From effect, simultaneously it can be avoided that limited support excessive wear, higher using vulcanite block hardness compared with prior art, structure is steady Qualitative more preferably so that engine-mounting bracket obtain quickly spacing, it is to avoid electromotor and peripheral component produce and interfere, and have Beneficial technique effect and significant practical value.

Brief description

Fig. 1 is the structural representation of fiber sleeve in this utility model background technology；

Fig. 2 is the schematic diagram that in this utility model, limit casing is coordinated with suspending cushion；

Fig. 3 is the sectional view in A-A face in Fig. 2；

Fig. 4 is the set location figure of limited support in limit casing in this utility model；

Fig. 5 is the sectional view in B-B face in Fig. 4.

Specific embodiment

As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, this utility model provides a kind of limit for limiting Engine Limit displacement Position sleeve pipe, including sleeve pipe 10, is fixed with " " shape limited support 11, is provided with suspension in described sleeve pipe 10 inside described sleeve pipe 10 Cushion 20, is provided with positive stop 21 in described suspending cushion 20, described positive stop 21 and limited support 11 cooperate, institute Stating limited support 11 length is L, and the length of described sleeve pipe 10 is H, length L of described limited support 11 and length H of sleeve pipe 10 Between geometrical relationship be：1/2H≤L≤4/5H, is provided with vulcanised rubber layer 12 outside described limited support 11.This technical side In case, the length of limited support 11 is shorter, and the structure that effectively can maximize limited support 11 while reducing cost of material is strong Degree, and vulcanised rubber layer 12 be designed to improve the pliability on limited support 11 surface, improve damping isolation effect, simultaneously It can be avoided that limited support 11 excessive wear, higher using vulcanite block hardness compared with prior art, structural stability is more preferable, So that engine-mounting bracket obtain quickly spacing, it is to avoid electromotor and peripheral component produce interferes.

Further, described positive stop 21 structure is " " shape and has gap and limited support 11 between, this is preferred In scheme, positive stop 21 and limited support 11 have identical " " shape structure, it is possible to increase positive stop 21 and limited support Contact area during 11 contact.

Above embodiment of the present utility model is described in detail, but described content has been only of the present utility model preferable Embodiment is it is impossible to be considered for limiting practical range of the present utility model, all impartial changes made according to this utility model scope Change and improve etc., all should still belong within this utility model covering scope.

Claims (2)

1. a kind of limit casing for limiting Engine Limit displacement, including sleeve pipe（10）It is characterised in that described sleeve pipe （10）Inner side is fixed with " " shape limited support（11）, described sleeve pipe（10）Inside it is provided with suspending cushion（20）, described suspending cushion （20）Inside it is provided with positive stop（21）, described positive stop（21）With limited support（11）Cooperate, described limited support （11）Length is L, described sleeve pipe（10）Length be H, described limited support（11）Length L and sleeve pipe（10）Length H it Between geometrical relationship be：1/2H≤L≤4/5H, described limited support（11）Outside is provided with vulcanised rubber layer（12）.

2. as claimed in claim 1 a kind of limit casing for limiting Engine Limit displacement it is characterised in that described limit Position block（21）Structure is " " shape and and limited support（11）Between there is gap.