Hydraulic suspension of automobile engine

Abstract

The utility model relates to an automobile engine hydraulic mount, and belongs to the technical field of engine damping. The suspension device comprises a suspension support, a rubber main spring, a rubber bottom film and a flow channel partition plate arranged between the rubber main spring and the rubber bottom film, and is characterized in that a connecting seat used for being connected with an engine is arranged at the top of the suspension support and comprises a connecting sleeve, a connecting column and a connecting ring, the connecting sleeve is clamped to the suspension support in a limited mode, the connecting column is inserted into an inner hole of the connecting sleeve, the connecting column is provided with a connecting hole allowing an engine to be inserted, the connecting ring and the connecting column are coaxially arranged, and the connecting ring abuts against the top of the rubber main spring in a sealed mode and presses the connecting column in a limited mode. The connecting strength of the hydraulic mount and the engine is improved, and the damping and buffering effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the engine damping technology field, in particular to an automobile engine hydraulic suspension. BACKGROUND

[0002] The automobile engine hydraulic suspension is a supporting and vibration isolation element connecting the engine and the vehicle body, has the function of isolating the transmission of engine vibration and noise into the vehicle cabin, and can obviously improve the comfort of the vehicle cabin.

[0003] The hydraulic suspension is usually composed of a support, a rubber main spring, an inertia passage body, a rubber bottom film, a base and a liquid working medium. The rubber main spring is responsible for bearing the static load and dynamic load of the engine, and the inertia passage body divides the hydraulic suspension into upper and lower liquid chambers, which are filled with viscous liquid. In order to realize the connection of the hydraulic suspension and the engine, a threaded connecting rod seat is usually fixed at the top of the support, one end of the bottom of the threaded connecting rod seat is fixed to the rubber main spring, and the bottom of the engine is provided with a threaded sleeve at the top of the threaded connecting rod seat.

[0004] In view of the related technology in the above, another threaded connecting rod seat is provided for connecting with the engine. CONTENT OF THE UTILITY MODEL

[0005] In order to improve the connection strength of the hydraulic suspension and the engine, the application provides an automobile engine hydraulic suspension.

[0006] The automobile engine hydraulic suspension provided by the application adopts the following technical scheme:

[0007] An automobile engine hydraulic suspension, comprising a suspension support, a rubber main spring, a rubber bottom film and a flow channel partition plate arranged between the rubber main spring and the rubber bottom film, a connecting seat for connecting with the engine is arranged at the top of the suspension support, the connecting seat comprises a connecting sleeve, a connecting column and a connecting ring, the connecting sleeve is limitingly connected to the suspension support, the connecting column is inserted into the inner hole of the connecting sleeve, the connecting column has a connecting hole for inserting the engine, the connecting ring is coaxially arranged with the connecting column, and the connecting ring sealingly abuts against the top of the rubber main spring.

[0008] By adopting the above technical scheme, a new screw rod connecting rod seat is provided, which comprises a connecting sleeve, a connecting column and a connecting ring, the connecting sleeve is connected to the suspension support, the connecting column is sleeved on the connecting sleeve, and the connecting column is limited and compressed by the connecting ring. Compared with the prior art, the above-mentioned screw rod connecting rod seat increases the connection strength with the suspension support, improves the connection strength of the engine and the hydraulic suspension through the insertion fixing mode, and improves the damping effect.

[0009] Optionally, the connecting sleeve is provided with a cover part for covering the top opening of the suspension bracket, and the suspension bracket is provided with a limiting ring groove for mounting the cover part.

[0010] By adopting the above technical scheme, the cover part seals the inner cavity of the suspension bracket and the outside, reduces the probability of dust and impurities in the vehicle body entering the suspension bracket, improves the sealing performance of the suspension bracket, and realizes limiting installation of the cover part through the limiting ring groove, so that the overall stability of the connecting seat is relatively stable.

[0011] Optionally, the top of the connecting ring is provided with a positioning column, and the bottom of the cover part has a positioning hole matched with the positioning column.

[0012] By adopting the above technical scheme, the positioning column and the positioning hole are matched, the cover part and the connecting ring are fixed, the connecting ring plays a circumferential limiting role, and the compression stability of the connecting ring to the connecting column is improved.

[0013] Optionally, the top of the rubber main spring is provided with a mounting groove, the connecting ring is sealingly attached to the side wall of the mounting groove, the connecting ring and the bottom wall of the mounting groove form a limiting groove, and the end of the connecting column is provided with a limiting part arranged in the limiting groove.

[0014] By adopting the above technical scheme, the limiting part is arranged in the limiting groove, the connecting ring is compressed and limited to the limiting part, the connecting column and the rubber main spring are limited and installed, and when the engine vibrates, the rubber main spring can be directly affected to drive the rubber main spring to deform.

[0015] Optionally, the side wall of the connecting column is provided with a fixed ring fixed by interference with the connecting ring.

[0016] By adopting the above technical scheme, the fixed ring and the connecting ring are interference-fitted, the connecting ring and the connecting column are fixed, when the connecting column vibrates in the axial direction, the connecting ring is compressed and the rubber main spring is compressed, the compression area of the rubber main spring is increased, and the damping effect is improved.

[0017] Optionally, the rubber main spring comprises a rubber main body and a metal framework arranged in the rubber main body, and the bottom outer wall of the rubber main spring is provided with a fixed outer ring, and the fixed outer ring is fixed with the inner wall of the suspension bracket.

[0018] By adopting the above technical scheme, the structure and composition of the rubber main spring are disclosed, the rubber main body has a certain elastic deformation capacity, the fluid inside the rubber main body can flow when the rubber main body deforms, and the metal framework increases the overall structural strength of the rubber main spring.

[0019] Optionally, the bottom of the suspension bracket is provided with a pressing cover for pressing the rubber bottom membrane, and the pressing cover is used to press and fix the bottom of the rubber main spring to the inner wall of the suspension bracket by a riveting process.

[0020] By adopting the above technical solution, the clamping cover can protect the rubber bottom membrane and press the rubber main spring tightly against the inner wall of the suspension bracket, thereby improving the stability of the rubber main spring within the suspension bracket.

[0021] Optionally, the outer wall of the suspension bracket is provided with a relief groove for riveting.

[0022] By adopting the above technical solution, the setting of the clearance groove facilitates operation by operators or riveting equipment, thereby improving riveting efficiency.

[0023] Optionally, the top of the suspension bracket is provided with an arc-shaped placement groove, and an external buffer is fixed in the arc-shaped placement groove.

[0024] By adopting the above technical solution, when the engine vibrates in the horizontal direction, the engine tilts as a whole. With the setting of external buffers, compared with the engine directly impacting the suspension bracket, the external buffers can buffer the lateral vibration of the engine.

[0025] Optionally, the external buffer includes an arc-shaped block that snaps into the arc-shaped placement groove and an abutment block disposed on the top of the arc-shaped block, the abutment blocks being spaced apart circumferentially along the axis of the arc-shaped block.

[0026] By adopting the above technical solution, the structural composition of the external buffer component is disclosed. The external buffer component is limited and installed by the cooperation of the arc-shaped block and the arc-shaped placement groove. When the engine shakes laterally, its bottom abuts against the abutment block.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The connecting seat of this application includes a connecting sleeve, a connecting post and a connecting ring. The connection between the parts is simple and the connection strength is stable, which enables the vibration of the engine to act more directly on the fluid in the rubber main spring.

[0029] 2. This application achieves sealing of the bottom of the suspension frame by setting a pressing cover, and at the same time presses the rubber main spring to improve the stability of the rubber main spring;

[0030] 3. By setting an external buffer, this application enables the hydraulic suspension to adapt to vibrations in both the vertical and horizontal directions. Attached Figure Description

[0031] Figure 1This is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 This is a schematic cross-sectional view of an embodiment of this application.

[0033] Figure 3 This is an exploded view of the connecting seat and the limiting ring according to an embodiment of this application.

[0034] Figure 4 This is an exploded view of the connecting seat and the rubber main spring according to an embodiment of this application.

[0035] Figure 5 yes Figure 2 A magnified view of a portion of point A in the middle.

[0036] Figure 6 This is an exploded view of the external buffer and suspension frame in an embodiment of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Suspension bracket; 11. Limiting ring; 111. Limiting ring groove; 12. Relief groove; 13. Arc-shaped placement groove; 2. Rubber main spring; 21. Shock-absorbing chamber; 22. Rubber body; 23. Metal frame; 24. Mounting groove; 241. Limiting groove; 3. Rubber bottom membrane; 4. Flow channel baffle; 5. Connecting seat; 51. Connecting sleeve; 511. Cover part; 512. Positioning hole; 52. Connecting post; 521. Connecting hole; 522. Limiting part; 523. Fixing ring; 53. Connecting ring; 531. Pressing surface; 532. Positioning post; 6. Pressing cover; 61. Pressing part; 7. Vulcanized outer ring; 8. External buffer; 81. Arc-shaped block; 82. Abutment block. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0039] This application discloses a hydraulic mount for an automobile engine.

[0040] Reference Figure 1 and Figure 2 A hydraulic suspension for an automobile engine includes a suspension bracket 1, a rubber main spring 2, a rubber base 3, a flow channel baffle 4 disposed between the rubber main spring 2 and the rubber base 3, a connecting seat 5 disposed at one end of the suspension bracket 1, and a pressure cover 6 disposed at the other end of the suspension bracket 1.

[0041] The suspension bracket 1 is an aluminum annular bracket with openings at both ends. The rubber main spring 2, the flow channel baffle 4, and the rubber bottom diaphragm 3 are sequentially arranged inside the suspension bracket 1 along the axial direction of the suspension bracket 1. There is a damping chamber 21 between the rubber main spring 2 and the rubber bottom diaphragm 3, and the damping chamber 21 is filled with a viscous incompressible fluid.

[0042] The rubber main spring 2 includes a rubber body 22 and a metal frame 23. The top of the rubber body 22 and the bottom of the connecting sleeve 51 are close to each other, and the bottom of the rubber body 22 extends to the bottom wall of the inner cavity of the suspension bracket 1. A vulcanized outer ring 7 is also provided between the bottom of the rubber body 22 and the inner wall of the suspension bracket 1. The metal frame 23 is a vulcanized cup, which is pre-installed inside the rubber body 22.

[0043] Reference Figure 2 and Figure 3 The end of the suspension bracket 1 closest to the rubber main spring 2 is defined as the top, and the end closest to the rubber bottom diaphragm 3 is defined as the bottom. A connecting seat 5 is fixed to the top of the suspension bracket 1 and is used to connect the hydraulic suspension to the engine. The connecting seat 5 includes a connecting sleeve 51, a connecting post 52, and a connecting ring 53. The connecting sleeve 51, connecting post 52, and connecting ring 53 are all coaxially arranged with the suspension bracket 1.

[0044] The connecting sleeve 51 is an annular body with an inverted T-shaped cross-section, and has a cover portion 511 for covering the top opening of the suspension bracket 1. The inner wall of the suspension bracket 1 has a limiting ring 11 that is inserted and engaged with the outer side of the cover portion 511, and the inner side of the limiting ring 11 has a limiting ring groove 111 that is inserted and fixed with the cover portion 511. The limiting ring 11 can be formed by splicing two semi-circular arc pieces, or the limiting ring 11 can be a complete ring, with the cover portion 511 interference-fitted into the limiting ring groove 111.

[0045] The connecting post 52 is fitted into the inner hole of the connecting sleeve 51. The top of the connecting post 52 has a connecting hole 521 for engine insertion. In this embodiment, the connecting hole 521 is a countersunk threaded hole. The bottom of the connecting post 52 is also integrally provided with a limiting part 522, so that the cross-section of the connecting post 52 along its axis is also inverted T-shaped. The inner diameter of the inner hole of the connecting sleeve 51 is larger than the outer diameter of the connecting post 52, which facilitates the insertion of the connecting post 52 and provides a clearance for the lateral movement of the connecting post 52.

[0046] Reference Figure 3 and Figure 4 The connecting ring 53 is sleeved and fitted with the connecting post 52, and the connecting ring 53 is located between the limiting part 522 and the connecting sleeve 51. The connecting ring 53 is used to press the connecting post 52 against the top of the rubber main spring 2. The top of the rubber main spring 2 has a mounting groove 24 for fixing the connecting ring 53 and the connecting post 52. The mounting groove 24 has a T-shaped cross section along the axis of the suspension bracket 1, and the connecting ring 53 is fitted against the top wall of the mounting groove 24. A limiting groove 241 is formed between the connecting ring 53 and the bottom wall of the mounting groove 24 for the limiting part 522 to be arranged, and the limiting part 522 is limited and arranged in the limiting groove 241. The bottom of the connecting ring 53 has a pressing surface 531 for pressing the limiting part 522, and the pressing surface 531 reduces the probability of the connecting post 52 detaching from the mounting groove 24.

[0047] The top of the connecting ring 53 is integrally provided with a positioning post 532, the positioning post 532 having an isosceles trapezoidal cross-section. The bottom surface of the cover part 511 has a positioning hole 512 that engages with the positioning post 532. The circumferential positioning of the connecting ring 53 is achieved through the positioning hole 512 and the positioning post 532.

[0048] To further improve the fixation of the connecting ring 53 and the connecting post 52, a retaining ring 523 is integrally formed on the side wall of the connecting post 52. The retaining ring 523 is interference-fitted into the inner wall of the connecting ring 53. The top surface of the retaining ring 523 is flush with the top surface of the connecting ring 53 to ensure sealing.

[0049] Reference Figure 2 and Figure 5 The clamping cover 6 is a U-shaped cover with an open top, and the top of the clamping cover 6 has a clamping part 61 extending away from the axis. The clamping cover 6 is inserted between the rubber base diaphragm 3 and the rubber main spring 2 through a riveting direction. The top of the clamping part 61 is in contact with the bottom of the rubber base diaphragm 3, and the outer side of the clamping part 61 presses the rubber main spring 2 and the vulcanized outer ring 7 against the inner wall of the suspension bracket 1 to fix the vulcanized outer ring 7 and the spring body. In order to facilitate the riveting process of the clamping cover 6, the outer bottom wall of the suspension bracket 1 also has a relief groove 12.

[0050] The top of the suspension bracket 1 has an arc-shaped placement groove 13, which is coaxial with the axis of the suspension bracket 1. An external buffer 8 is installed within the arc-shaped placement groove 13. The external buffer 8 is made of pure rubber and has elastic deformation capability. The external buffer 8 includes an arc-shaped block 81 and an abutment block 82. The arc-shaped block 81 is installed in the arc-shaped placement groove 13 and can be finally fixed by glue or plugging. The abutment block 82 is integrally set on the top of the arc-shaped block 81 and is circumferentially spaced along the axis of the arc-shaped block 81. When the engine tilts laterally, the engine impacts the abutment block 82, and the external buffer 8 cushions the lateral tilt of the engine.

[0051] The implementation principle of a hydraulic suspension for an automobile engine according to an embodiment of this application is as follows: the connecting seat 5 is pre-assembled, and then the connecting seat 5 and the rubber main spring 2 are placed in the mold and vulcanized and fixed into a whole. Then the whole is inserted from the bottom of the suspension bracket 1 and fixed in cooperation with the limiting ring 11. After that, the vulcanized outer ring 7, the flow channel partition 4 and the rubber bottom film 3 are inserted and installed from the bottom of the suspension bracket 1 in sequence. Finally, the clamping cover 6 is riveted and fixed to the bottom of the suspension bracket 1.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hydraulic mount for an automobile engine, comprising a mount bracket (1), a rubber main spring (2), a rubber base diaphragm (3), and a flow channel partition (4) disposed between the rubber main spring (2) and the rubber base diaphragm (3), characterized in that, The top of the suspension bracket (1) is provided with a connecting seat (5) for connecting with the engine. The connecting seat (5) includes a connecting sleeve (51), a connecting post (52) and a connecting ring (53). The connecting sleeve (51) is limited and snapped into the suspension bracket (1). The connecting post (52) is inserted into the inner hole of the connecting sleeve (51). The connecting post (52) has a connecting hole (521) for the engine to be inserted. The connecting ring (53) is coaxially arranged with the connecting post (52). The connecting ring (53) seals against the top of the rubber main spring (2) and limits and presses the connecting post (52).

2. The hydraulic mount for an automobile engine according to claim 1, characterized in that, The connecting sleeve (51) is provided with a cover (511) for covering the top opening of the suspension bracket (1), and the suspension bracket (1) is provided with a limiting annular groove (111) for installing the cover (511).

3. A hydraulic mount for an automobile engine according to claim 2, characterized in that, The top of the connecting ring (53) is provided with a positioning post (532), and the bottom of the cover (511) has a positioning hole (512) that is inserted into the positioning post (532).

4. A hydraulic mount for an automobile engine according to claim 1, characterized in that, The top of the rubber main spring (2) is provided with an installation groove (24), the connecting ring (53) is sealed and fitted to the side wall of the installation groove (24), the connecting ring (53) and the bottom wall of the installation groove (24) form a limiting groove (241), and the end of the connecting column (52) is provided with a limiting part (522) arranged in the limiting groove (241).

5. A hydraulic mount for an automobile engine according to claim 4, characterized in that, The side wall of the connecting column (52) is provided with a fixing ring (523) that is interference-fitted to the connecting ring (53).

6. A hydraulic mount for an automobile engine according to claim 1, characterized in that, The rubber main spring (2) includes a rubber body (22) and a metal skeleton (23) disposed in the rubber body (22). A vulcanized outer ring (7) is provided on the bottom outer wall of the rubber main spring (2). The vulcanized outer ring (7) is pressed tightly against the inner wall of the suspension bracket (1).

7. A hydraulic mount for an automobile engine according to claim 6, characterized in that, The bottom of the suspension bracket (1) is provided with a pressing cover (6) to press the rubber bottom film (3). The pressing cover (6) presses and fixes the bottom of the rubber main spring (2) to the inner wall of the suspension bracket (1) by riveting.

8. A hydraulic mount for an automobile engine according to claim 7, characterized in that, The outer wall of the suspension bracket (1) is provided with a relief groove (12) for riveting.

9. A hydraulic mount for an automobile engine according to claim 1, characterized in that, The top of the suspension bracket (1) is provided with an arc-shaped placement groove (13), and an external buffer (8) is fixed in the arc-shaped placement groove (13).

10. A hydraulic mount for an automobile engine according to claim 9, characterized in that, The external buffer (8) includes an arc-shaped block (81) that is snapped into the arc-shaped placement groove (13) and an abutment block (82) disposed on the top of the arc-shaped block (81). The abutment blocks (82) are circumferentially spaced along the axis of the arc-shaped block (81).

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