CN206124727U - Engine hydraulic suspension - Google Patents

Abstract

The utility model relates to an engine hydraulic suspension, it includes that shell, hydraulic unit reach and the fixed hydraulic unit's of shell cooperation bottom plate, hydraulic unit includes main spring, last throttling -piece, decoupling membrane, lower throttling -piece, leather cup, main spring includes interior sleeve pipe, rubber spare and base, and interior sleeve pipe and rubber spare lie in base length direction's intermediate position, and this concave cavity that is equipped with in base bottom, upward throttling -piece, decoupling membrane, lower throttling -piece set up in this cavity, the leather cup is sealed with the cavity, the base top has a fitting surface that is located rubber spare both sides, and shell and this fitting surface correspond the cooperation portion that is equipped with, the fitting surface suddenly is equipped with the arch, cooperation portion is equipped with to pressing in this bellied recess, and it can stabilize fixed hydraulic unit effectively, and simple to operate, and the good reliability can not the weeping.

Description

engine hydraulic mount

technical field

The utility model relates to the field of automobiles, in particular to an engine hydraulic mount.

Background technique

The engine hydraulic mount is a bridge connecting the engine and the frame. The existing engine hydraulic mount includes: a casing and a hydraulic unit arranged in the casing. The hydraulic unit includes a main spring composed of an inner sleeve, rubber parts and a base, an upper runner piece, a decoupling membrane, a lower runner piece, a leather The bowl and the clasp, the clasp is fixed on the bottom of the base through buckles. The housing has a receiving cavity, and the hydraulic unit is embedded in the receiving cavity. And because the shell and the base are all metal, the two are through interference fit, so it is inconvenient to install. In addition, the snap ring is easy to loosen after working for a long time, resulting in liquid leakage.

Contents of the invention

The purpose of the utility model is to provide an engine hydraulic mount, which can stably and effectively fix the hydraulic unit, and is easy to install, has good reliability, and does not leak liquid.

The utility model provides an engine hydraulic mount, which includes a casing, a hydraulic unit and a bottom plate that cooperates with the casing to fix the hydraulic unit. The hydraulic unit includes a main spring, an upper throttle, a decoupling membrane, a lower throttle, leather cup, the main spring includes an inner sleeve, a rubber part and a base, the inner sleeve and the rubber part are located in the middle of the length direction of the base, and a cavity is recessed at the bottom of the base, and the upper throttle plate, the decoupling The membrane and the lower throttle plate are arranged in the cavity, the cup seals the cavity, the top of the base opposite to the bottom has a mating surface on both sides of the rubber part, and the housing is provided with a mating part corresponding to the mating surface , the mating surface is protrudingly provided with a protrusion, and the mating portion is provided with a groove pressed against the protrusion.

Preferably, the section of the protrusion along the length direction of the base is trapezoidal, the protrusion includes a top surface and inclined side surfaces on both sides of the top surface, and the groove correspondingly has a A bottom surface and a pair of inclined surfaces pressed against the side surfaces.

Preferably, the protrusion is located in the middle of the mating surface in the width direction of the base, and bosses protrude from both sides of the groove on the mating portion, and the bosses are pressed against the sides of the protrusion. mating surface.

Preferably, the mating surface is provided with two protrusions, and the two protrusions are symmetrically located on both sides of the rubber part.

Preferably, the inner sleeve, the rubber part and the base are vulcanized to form the main spring, and the top of the base is covered with a layer of rubber.

Preferably, the rubber layer covering the mating surface of the base is wave-shaped.

Preferably, the gap between the rubber part and the protrusion of the base is filled with rubber after vulcanization.

Preferably, the housing has a pair of arms for clamping the main spring, the pair of arms has opposite inner surfaces, the inner surfaces are respectively provided with guide grooves, and the side surface of the base and the inner surface is provided with a Ribs that slide in guide grooves.

Preferably, the bottom of the housing has a mounting column, and the bottom plate is correspondingly provided with a mounting hole, and the housing and the bottom plate are fixed by riveting the mounting post and the mounting hole.

Compared with the prior art, since the engine hydraulic mount is sequentially assembled by the shell, the hydraulic unit, and the bottom plate that cooperates with the shell to fix the hydraulic unit, the mating surface of the base in the hydraulic unit is protrudingly provided with protrusions, and the shell’s The mating part is provided with a groove that presses against the protrusion, which effectively prevents the hydraulic unit from sliding between the shell and the bottom plate, and at the same time is easy to install, has good reliability, and will not leak.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model. In the attached picture:

Fig. 1 is a partially exploded schematic view of the engine hydraulic mount of the present invention;

Fig. 2 is an enlarged view of part A in Fig. 1;

Fig. 3 is the B-B sectional view of hydraulic unit in Fig. 1;

Fig. 4 is a sectional view of the assembled engine hydraulic mount of the utility model.

detailed description

Please refer to FIG. 1 , the engine hydraulic mount of the present invention includes a casing 1 , a hydraulic unit 2 and a bottom plate 3 cooperating with the casing 1 to fix the hydraulic unit 2 .

3 and 4, the hydraulic unit 2 includes a main spring 20, an upper throttle plate 24, a decoupling membrane 25, a lower throttle plate 26, and a leather cup 27, wherein the main spring 20 includes an inner sleeve 21 , the rubber part 22 and the base 23, the inner casing 21 and the rubber part 22 are located in the middle of the length direction of the base 23, and the bottom of the base 23 is concavely provided with a cavity 231, the upper throttle plate 24, the decoupling membrane 25, The lower throttle piece 26 is arranged in the cavity 231, and the cup 27 seals the cavity 231. Please refer to FIGS. surface 232, the housing 1 is provided with a matching portion 11 corresponding to the matching surface 232, the matching surface 232 is protrudingly provided with a protrusion 233, and the matching portion 11 is provided with a groove 111 pressed against the protrusion 233, the protrusion The cooperation between the protrusion 233 and the groove 111 can effectively fix the hydraulic unit 2 and prevent the hydraulic unit 2 from sliding between the casing 1 and the bottom plate 3 . The mating surface 232 is provided with two protrusions 233 , and the two protrusions 233 are symmetrically located on two sides of the rubber member 22 .

Please refer to FIG. 3 , the section of the projection 233 along the length direction of the base 23 is trapezoidal. The groove 111 correspondingly has a bottom surface 1111 pressed against the top surface 2331 and a pair of inclined surfaces 1112 pressed against the side surface 2332 . In this way, the hydraulic unit 2 is subjected to pressure in the horizontal direction and towards the bottom plate 3, and can be better fixed.

The protrusion 233 is located in the middle of the mating surface 232 in the width direction of the base 23. On the mating portion 11, a boss 112 protrudes from both sides of the groove 111, and the boss 112 presses against the protrusion. 233 on both sides of the mating surface 232, so that the hydraulic unit 2 is pressed by the boss 112 toward the bottom plate 3, thereby being better fixed.

The inner sleeve 21, the rubber part 22 and the base 23 are vulcanized to form the main spring 2, and the top of the base 23 is covered with a layer of rubber layer 235, which can avoid noise when the housing 1 cooperates with the hydraulic unit 2, and at the same time the housing 1 compresses the rubber The layer 235 exerts a pressure on the hydraulic unit 2 against the base plate 3 . The rubber layer 235 covering the mating surface 232 of the base 23 has a wave shape, so that the rubber layer 235 is more easily compressed by the housing 1 . The gap between the rubber part 22 and the protrusion 233 of the base 23 is vulcanized and filled with rubber, so that the mold structure for vulcanizing the main spring 20 is relatively simple. After the engine hydraulic mount is assembled, the rubber in the gap is filled with rubber. The slope 1112 of the groove 111 on the casing 1 is compressed.

The housing 1 has a pair of arm portions 12 for clamping the main spring 2, the pair of arm portions 12 have opposite inner surfaces 121, and the inner surfaces 121 are respectively provided with guide grooves 122, and the base 23 is attached to the inner surfaces 121 A rib 237 is provided on the side 236 of the guide groove 122 to slide.

When installing, first put the shell upside down on the tooling of the press-fitting equipment, and through the guiding effect of the convex rib of the base 23 and the guide groove 122, the hydraulic unit 2 is installed into the shell 1 along the guide groove 122, and the shell 1. There are mounting posts 13 at the bottom, and mounting holes 31 are correspondingly provided on the bottom plate 3. The housing 1 and the bottom plate 3 are fixed by riveting and cooperating with the mounting posts 13 and the mounting holes 31, and the installation is convenient. After the bottom plate 3 presses the hydraulic unit 2, the hydraulic unit 2 forms a sealed cavity through the sealing of the leather cup 27, which has good reliability and no leakage.

Although the utility model has been disclosed above with preferred embodiments, the utility model is not limited thereto. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model should be included in the protection scope of the present utility model, so the protection scope of the present utility model should be defined by the claims range prevails.

Claims (9)

1. a kind of engine hydraulic mount, it includes shell, hydraulic pressure unit and coordinates the base plate of fixed hydraulic unit, institute with shell State hydraulic pressure unit including main spring, upper flow regulator pieces, decoupling film, lower flow regulator pieces, leather cup, the main spring include inner sleeve, rubber parts and Base, inner sleeve and rubber parts are located at the centre position in base length direction, and the base bottom is arranged with cavity, the upper section Flow, decoupling film, lower flow regulator pieces are arranged in the cavity, and the leather cup seals cavity, it is characterised in that the base and its The relative top in bottom has the mating surface positioned at rubber parts both sides, and shell is correspondingly provided with auxiliary section with the mating surface, described to match somebody with somebody Conjunction face is equipped with projection, and the auxiliary section is provided with and presses on the raised groove.

2. engine hydraulic mount according to claim 1, it is characterised in that raised the cutting along base length direction In echelon, the projection includes top surface and positioned at the top surface both sides into the side being obliquely installed in face, and the groove accordingly has and compresses In the bottom surface of the top surface and press on a pair of inclined-planes of the side.

3. engine hydraulic mount according to claim 1, it is characterised in that the projection is on the width of base Positioned at the centre position of mating surface, boss is equipped with respectively in the both sides of groove on the auxiliary section, the boss presses on projection The mating surface of both sides.

4. engine hydraulic mount according to claim 1, it is characterised in that the mating surface is provided with two projections, institute State the both sides that two projections are symmetrically positioned in rubber parts.

5. the engine hydraulic mount according to any one of Claims 1-4, it is characterised in that the inner sleeve, rubber parts And base forms main spring by sulfuration, base top covers one layer of rubber.

6. engine hydraulic mount according to claim 5, it is characterised in that be covered in the rubber Cheng Bo of seat Shape wave.

7. engine hydraulic mount according to claim 5, it is characterised in that between the rubber parts and pedestal lobe Filled by rubber after the sulfuration of gap.

8. engine hydraulic mount according to claim 1, it is characterised in that the shell has a pair of the main spring of clamping Arm, this pair of arm has relative inner surface, and the inner surface is respectively equipped with guide channel, the side that base is fitted with the inner surface Face is provided with the fin that can be slided in guide channel.

9. engine hydraulic mount according to claim 1, it is characterised in that the outer casing bottom has mounting post, bottom Plate is correspondingly provided with installing hole, and shell is coordinated by mounting post with base plate with installing hole riveting to be realized fixing.