CN201535341U

CN201535341U - Engine supporting structure

Info

Publication number: CN201535341U
Application number: CN2009202100776U
Authority: CN
Inventors: 杨庭华
Original assignee: SHANGHAI LUOSHI DAMPING PARTS CO Ltd
Current assignee: Jiangsu Luoshi Shock Absorption Parts Co., Ltd.
Priority date: 2009-09-24
Filing date: 2009-09-24
Publication date: 2010-07-28
Anticipated expiration: 2019-09-24

Abstract

The utility model relates to an engine supporting structure. The supporting structure comprises a main rubber spring and a throttling plate, wherein damping liquid is arranged below the main rubber spring; a decoupling membrane is arranged between the damping liquid and a flow passage; a rubber basement membrane and a gland are arranged below the flow passage; and the throttling plate is arranged between the main rubber spring and the damping liquid. The utility model has the benefit that the liquid damping suspension high-frequency dynamic rigidification frequency is improved, so that the supporting structure achieves a favorable vibration isolation performance within a wide vibration frequency range.

Description

Engine support structure

Technical field

The utility model relates to a kind of engine support structure, relates in particular to the liquid chamber structure in this engine support structure.

Background technique

The connection that engine support structure (mainly adopt metal and vulcanization of rubber goods, Steel Support and filling liquid to combine, be commonly referred to hydraulic mount) is used between motor and the vehicle frame is supported, and chassis and motor are all had certain vibration isolation effect.It can provide big damping to motor when low frequency, when it can be at the motor high frequency, provide less rigidity to motor, makes car load steady, does not have bigger vibration, plays the vibration insulation and noise reduction effect, thereby makes passenger more comfortable.

Hydraulic mount is a kind of vibration isolation element of bringing into use on automobile external late 1970s, it is to have increased the encapsulation viscous fluid on the basis of former rubber mounting, improve the dynamic characteristic of rubber mounting by the fluid power characteristic of fluid, thereby better vibration insulation and noise reduction characteristic is provided.The structural development of hydraulic mount has experienced the process from simple to complexity.

As seen from Figure 1: form by rubber spring 1, damp liquid 2, decoupling zero film 3, runner 4, rubber counterdie 5 and gland 6; The effect of decoupling zero film similarly is a floating piston that qualifying bit is arranged; When amplitude was very little, it provided little rigidity, little damping; When amplitude was very big, it arrived qualifying bit, and big damping, big rigidity are provided, and the effect of decoupling zero film has reduced the transmissibility of dither significantly, and this type of suspends and has dynamic response preferably, and application area is wider.Shortcoming is high frequency when dynamic, and frequency band is narrower, is prone to the high frequency hardening phenomenon, does not satisfy the vibration of motor when high frequency, thereby easily causes resonance.

Summary of the invention

The utility model technical issues that need to address have provided a kind of engine support structure, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: rubber spring; Under described rubber spring, be damp liquid; A decoupling zero film is between damp liquid and runner; Under the runner rubber counterdie and gland; Also comprise a throttling dish; Described throttling dish is between rubber spring and damp liquid.

Compared with prior art, the beneficial effects of the utility model are: improved the liquid resistance high frequency frequency of dynamically hardening that suspends, made it all have good anti-vibration performance in very wide vibration frequency range.

Description of drawings

Fig. 1 is an engine support structure schematic representation in the prior art;

Fig. 2 is the utility model structural representation;

Fig. 3 is a dynamic stiffness characteristic curve comparison diagram;

Fig. 4 A is a throttling dish structural representation among Fig. 2;

Fig. 4 B is the plan view of Fig. 4 A.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

As seen from Figure 2: the utility model comprises: rubber spring 10; At described rubber spring is for 10 times damp liquid 20; A decoupling zero film 30 is between damp liquid 20 and runner 40; Runner is for 40 times rubber counterdie 50 and gland 60; Also comprise a throttling dish 70; Described throttling dish 70 is between rubber spring 10 and damp liquid 20.

The utility model increases the throttling dish of a prior art on the original basis, it is to have added a throttling dish in the second band liquid resistance suspends upper liquid chamber that the resistance of third generation liquid suspends, the structure of throttling dish, as Fig. 4, its function is: during stressed or dither, the liquid chamber pressure inside is increased in motor support, the liquid levelling is steady, impact shock is less, and it has improved the liquid resistance high frequency frequency of dynamically hardening that suspends, and makes it all have good anti-vibration performance in very wide vibration frequency range.

(dotted line is represented the second generation as seen from Figure 3, solid line is represented the utility model): liquid of the present utility model resistance is suspended at dynamic stiffness characteristic curve high frequency, little amplitude under as scheming, the resistance of second generation liquid is suspended at the following dynamic stiffness curve of 150Hz decline significantly, but dynamic sclerosis promptly occurs to 150Hz, sharply rising appears in dynamic stiffness on this frequency.The dynamic sclerosis frequency that the resistance of third generation liquid suspends is significantly improved, and high frequency dynamic stiffness amplitude descends to some extent.

Claims

1. an engine support structure comprises: rubber spring; Under described rubber spring, be damp liquid; A decoupling zero film is between damp liquid and runner; Under the runner rubber counterdie and gland; It is characterized in that: also comprise a throttling dish; Described throttling dish is between rubber spring and damp liquid.