Engine suspension rubber mat

Abstract

The invention belongs to the technical field of automobile engine suspension, and particularly relates to an engine suspension rubber mat which comprises a guide pin, a suspension rubber mat body and a rubber block, the suspension rubber mat body comprises an upper supporting face, a lower supporting face, a left inclined supporting face and a right inclined supporting face, and the guide pin is perpendicularly and fixedly connected with the upper supporting face. The left inclined supporting face and the right inclined supporting face are symmetrical about the axial center line of the suspension rubber mat body, and the rubber block and the lower supporting face are vulcanized into an integrated structure. The suspension rubber mat body is composed of a supporting frame and rubber vulcanized into an integrated structure with the supporting frame. The suspension rubber mat and the suspension lower support are connected without bolts, the suspension rubber mat is directly placed on the suspension lower support, self-locking after assembly is achieved through the corresponding inclined faces on the suspension lower support, the assembly convenience of a suspension system can be effectively improved, and the use safety and reliability of a power assembly are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile engine suspension, and in particular relates to an engine suspension rubber pad. Background Art

[0002] As a key component supporting the powertrain, the engine mount plays a crucial role in ensuring smooth powertrain output. To ensure effective powertrain support and attenuate or isolate ground vibrations, the engine mount typically utilizes a combination of a mounting bracket and a mounting pad, with the pad connected to the bracket via bolts.

[0003] Existing engine mounts are composite structures made of vulcanized rubber and metal plates. Common failures with these mounts include broken brackets and broken or falling bolts securing them. Furthermore, existing engine mounts are heavy, complex, and difficult to assemble, resulting in low reliability. Summary of the Invention

[0004] The object of the present invention is to provide an engine suspension rubber pad which adopts a lightweight design concept and can be installed and replaced relatively conveniently, so as to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] An engine suspension rubber pad comprises a guide pin, a suspension rubber pad body, and a rubber block. The suspension rubber pad body comprises an upper support surface, a lower support surface, a left oblique support surface, and a right oblique support surface. The guide pin is vertically fixedly connected to the upper support surface. The left oblique support surface and the right oblique support surface are symmetrical about the axial centerline of the suspension rubber pad body. The rubber block and the lower support surface are vulcanized into an integral structure.

[0007] The suspension rubber pad body is composed of a support frame and rubber vulcanized into an integrated structure with the support frame.

[0008] Furthermore, a left extension part and a right extension part symmetrical with the axial center line of the suspension rubber pad body are respectively provided on both sides of the suspension rubber pad body, the left oblique support surface is located at the outer end of the left extension part, and the right oblique support surface is located at the outer end of the right extension part.

[0009] Furthermore, the guide pin includes an integrated structure consisting of a cylinder at the bottom and a cone at the top, and the lower end surface of the cylinder is fixedly connected to the upper support surface.

[0010] Furthermore, the left oblique supporting surface and the right oblique supporting surface are both oblique supporting surfaces with slopes.

[0011] Furthermore, the support frame includes an upper support frame and a lower support frame, the upper surface of the upper support frame forms an upper support surface, and the lower surface of the lower support frame forms a lower support surface; two vertical support frames with the same structure are arranged between the upper support frame and the lower support frame, and an oblique support frame is arranged on the outer side surface of each vertical support frame, and an end face support frame is arranged on the outer end portion of each oblique support frame, and the outer surfaces of the two end face support frames form a left oblique support surface and a right oblique support surface.

[0012] Furthermore, the length of the upper support frame is greater than the length of the lower support frame.

[0013] Furthermore, the vertical support frame is an integrated structure consisting of an upper support beam, a connecting beam and a lower support beam in sequence from the upper support frame to the lower support frame, and the distance between the two upper support beams is greater than the distance between the two lower support beams.

[0014] Furthermore, the oblique support frame is an integrated structure consisting of a first support beam and an oblique support beam. The height of the first support beam in the up-down direction is the same as the height of the upper support beam. The angle between the first support beam and the oblique support beam is an obtuse angle, and the upper end surface of the first support beam is fixedly connected to the lower surface of the upper support frame, and the side surface of the first support beam is in contact with the outer surface of the upper support frame.

[0015] Furthermore, both ends of the end surface support frame are provided with a bending portion.

[0016] The beneficial effects of the present invention are:

[0017] The connection between the suspension rubber pad and the suspension lower bracket does not require bolts. The suspension rubber pad can be directly placed on the suspension lower bracket. The corresponding inclined surface on the suspension lower bracket can achieve self-locking after assembly, which can effectively improve the assembly convenience of the suspension system and improve the safety and reliability of the powertrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the outer contour of the suspension rubber pad of the present invention.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the suspension rubber pad of the present invention.

[0020] Figure 3 This is a front view of the suspension rubber pad of the present invention.

[0021] Figure 4 This is a top view of the suspension rubber pad of the present invention.

[0022] Figure 5 This is a left view of the suspension rubber pad of the present invention.

[0023] Figure 6 Schematic diagram of the engine suspension lower bracket structure.

[0024] Description of reference numerals:

[0025] 1. Guide pin; 2. Suspension rubber pad body; 3. Rubber block; 4. Inclined portion; 101. Cylinder; 102. Cone; 21. Upper support surface; 22. Lower support surface; 23. Left inclined support surface; 24. Right inclined support surface; 26. Rubber; 27. Left extension portion; 28. Right extension portion; 251. Upper support frame; 252. Lower support frame; 253. Vertical support frame; 254. Oblique support frame; 255. End support frame; 2531. Upper support beam; 2532. Connecting beam; 2533. Lower support beam; 2541. First support beam; 2542. Oblique support beam. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is described in detail above with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0027] The biggest difference between the engine mounting pad of this application and the existing engine mounting pad is that the fixing bolts are eliminated. Therefore, all existing engine mounting pads that use fixing bolts are different from the engine mounting pad of this application in terms of working principle and structure. Figure 1 and Figure 6 As shown, the engine suspension rubber pad of the present application is placed on the engine suspension lower bracket by a clip-on method, and the left extension part and left oblique support surface, the right extension part and right oblique support surface of the engine suspension rubber pad of the present application are used with the corresponding oblique surface parts of the engine suspension lower bracket to realize self-locking after assembly, while eliminating the fixing bolts and effectively improving the assembly convenience of the suspension system.

[0028] like Figures 1 to 5 As shown, the present application provides an engine suspension rubber pad, which is still composed of a vulcanized rubber 26 and a corresponding support frame vulcanized into an integrated structure. Therefore, the components of the vulcanized rubber of the present application are the same as those of the vulcanized rubber of the currently used engine suspension rubber pad, and what is improved is the corresponding structure.

[0029] As a whole, the engine suspension rubber pad of the present application includes a guide pin 1, a suspension rubber pad body 2 and a rubber block 3. Specifically, the two sides of the suspension rubber pad body 2 are each provided with a left extension 27 and a right extension 28 symmetrical with the axial centerline of the suspension rubber pad body. The axial centerline of the suspension rubber pad body of the present application can also adopt an axial section perpendicular to the rubber pad body. This load-bearing section passes through the axial centerline, that is, the left extension and the right extension are symmetrical with the axial section. See specifically Figure 3 shown.

[0030] In this case, the suspension rubber pad body 2 of the present application includes an upper support surface 21, a lower support surface 22, a left oblique support surface 23 and a right oblique support surface 24. The guide pin 1 is vertically fixedly connected to the upper support surface 21. The left oblique support surface 23 and the right oblique support surface 24 are symmetrical about the axial center line of the suspension rubber pad body. The rubber block 3 and the lower support surface 22 are vulcanized into an integrated structure.

[0031] The suspension rubber pad body 2 of this application consists of a support frame and a rubber 26 vulcanized into an integral structure with the support frame. Both the upper and lower support surfaces are metal planes used to support the weight of the engine. Guide pins are welded to the upper support surface, while a vulcanized rubber block is used on the lower support surface. Under extreme conditions, the rubber block will contact the lower support of the engine mount, bearing the weight of the engine, providing a redundant design for the suspension rubber pad.

[0032] The guide pin 1 of the present application includes an integrated structure consisting of a cylinder 101 at the bottom and a cone 102 at the top. The lower end face of the cylinder is fixedly connected to the upper support surface, wherein the cone plays a guiding role to facilitate assembly, and the cylinder plays a positioning role.

[0033] The left oblique supporting surface 23 and the right oblique supporting surface 24 of the present application are both oblique supporting surfaces with slopes, where the slopes here refer to the upper surface or the lower surface of the extension portion being in a slope shape.

[0034] In the present application, the support frame includes an upper support frame 251 and a lower support frame 252. The upper surface of the upper support frame 251 forms an upper support surface 21, and the lower surface of the lower support frame 252 forms a lower support surface 22. Two vertical support frames 253 with the same structure are arranged between the upper support frame 251 and the lower support frame 252. The outer side surface of each vertical support frame 253 is provided with an oblique support frame 254, and the outer end of each oblique support frame 254 is provided with an end face support frame 255. The outer surfaces of the two end face support frames 255 form a left oblique support surface and a right oblique support surface. Specifically, Figure 2 As shown, the support frame is generally composed of 8 support plates, which are welded together to form the support frame of this application and then vulcanized with rubber to form an integrated structure to form the suspension rubber pad body of this application.

[0035] In this application, both the upper support frame and the lower support frame are rectangular structures, and the length of the upper support frame is greater than that of the lower support frame. Rubber is not vulcanized on the upper surface of the upper support frame, and rubber is not vulcanized on the lower surface of the lower support frame. Instead, the rubber block and the lower surface of the lower support frame are vulcanized into an integrated structure.

[0036] In the present application, the vertical support frame 253 is an integrated structure consisting of an upper support beam 2531, a connecting beam 2532, and a lower support beam 2533 from the upper support frame to the lower support frame, and the distance between the two upper support beams is greater than the distance between the two lower support beams. Vulcanized rubber is placed between the two vertical support frames.

[0037] In this application, the diagonal support frame 254 is an integrated structure consisting of a first support beam 2541 and a diagonal support beam 2542. The vertical height of the first support beam is the same as that of the upper support beam, and the angle between the first support beam and the diagonal support beam is obtuse. The upper end surface of the first support beam is fixedly connected to the lower surface of the upper support frame, and the side surface of the first support beam is in contact with the outer surface of the upper support frame. Rubber is vulcanized on the upper and lower surfaces of the diagonal support beam to form a left extension or a right extension.

[0038] In the present application, both ends of the end surface support frame 255 are provided with a bending portion.

[0039] In this application, the left oblique support surface and the right oblique support surface are locking and supporting structures, which cooperate with the sloped surface of the engine lower bracket. During installation, they only need to be placed in the corresponding position of the engine lower bracket without the need for bolt tightening.

[0040] The support frames of the present application are all elastic steel plates, which have a skeleton as the main body of the suspension rubber pad and are vulcanized together with the rubber to support and protect the entire suspension rubber pad.

[0041] The above description is merely an embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application discloses the preferred embodiments as above, it is not intended to limit the present application. Any technical personnel familiar with the present profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An engine mounting rubber pad, characterized in that: The suspension rubber pad comprises a guide pin, a suspension rubber pad body, and a rubber block. The suspension rubber pad body comprises an upper support surface, a lower support surface, a left oblique support surface, and a right oblique support surface. The guide pin is vertically fixedly connected to the upper support surface. The left oblique support surface and the right oblique support surface are symmetrical about the axial center line of the suspension rubber pad body. The rubber block and the lower support surface are vulcanized into an integral structure. The suspension rubber pad body is composed of a support frame and rubber vulcanized into an integrated structure with the support frame.

2. The engine mounting rubber pad according to claim 1, characterized in that: A left extension part and a right extension part symmetrical to the axial center line of the suspension rubber pad body are respectively provided on both sides of the suspension rubber pad body. The left oblique support surface is located at the outer end of the left extension part, and the right oblique support surface is located at the outer end of the right extension part.

3. The engine mounting rubber pad according to claim 1, characterized in that: The guide pin comprises an integral structure consisting of a cylinder at the bottom and a cone at the top, and the lower end surface of the cylinder is fixedly connected to the upper supporting surface.

4. The engine mounting rubber pad according to claim 2, characterized in that: The left oblique supporting surface and the right oblique supporting surface are both oblique supporting surfaces with slopes.

5. The engine mounting rubber pad according to claim 1, characterized in that: The support frame includes an upper support frame and a lower support frame, the upper surface of the upper support frame forms an upper support surface, and the lower surface of the lower support frame forms a lower support surface; two vertical support frames with the same structure are arranged between the upper support frame and the lower support frame, and an oblique support frame is arranged on the outer side surface of each vertical support frame, and an end face support frame is arranged on the outer end portion of each oblique support frame, and the outer surfaces of the two end face support frames form a left oblique support surface and a right oblique support surface.

6. The engine mounting rubber pad according to claim 5, characterized in that: The length of the upper support frame is greater than that of the lower support frame.

7. The engine mounting rubber pad according to claim 5, characterized in that: The vertical support frame is an integrated structure consisting of an upper support beam, a connecting beam and a lower support beam in sequence from the upper support frame to the lower support frame, and the distance between the two upper support beams is greater than the distance between the two lower support beams.

8. The engine mounting rubber pad according to claim 7, characterized in that: The oblique support frame is an integrated structure consisting of a first support beam and an oblique support beam. The height of the first support beam in the up-down direction is the same as that of the upper support beam. The angle between the first support beam and the oblique support beam is an obtuse angle. The upper end surface of the first support beam is fixedly connected to the lower surface of the upper support frame, and the side surface of the first support beam is in contact with the outer surface of the upper support frame.

9. The engine mounting rubber pad according to claim 5, characterized in that: Both ends of the end surface support frame are provided with a bending portion.

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