Lightweight automobile engine suspension with locking mechanism

Abstract

The present application relates to the field of automobile engine suspension, and specifically provides a lightweight automobile engine suspension with a locking mechanism, which comprises a lightweight shell and an elastic rubber body accommodated in the lightweight shell in a plug-in manner, the lightweight shell comprises a bottom mounting seat and a side support seat peripherally arranged on the upper end of the bottom mounting seat, and the side support seat and the bottom mounting seat form an accommodating cavity for accommodating the elastic rubber body; the side support seat comprises a rear bearing wall, a front weight-reducing wall and a side bearing wall, a rigid bearing plate is arranged on the inner wall of the side bearing wall, and a locking mechanism is matched between the rigid bearing plate and the outer wall of the elastic rubber body; the locking mechanism comprises a clamping platform on the rigid bearing plate, or a clamping platform on the outer wall of the elastic rubber body and a clamping groove on the rigid bearing plate, and when the elastic rubber body is inserted into the accommodating cavity, the elastic rubber body and the lightweight shell are locked through the clamping mechanism. The present scheme can reduce the assembly process and reduce the manufacturing cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile engine suspension, in particular to a lightweight automobile engine suspension with a locking mechanism. BACKGROUND

[0002] With the continuous development of science and technology and the continuous improvement of people's living standards, people's requirements for the riding comfort of automobiles are increasingly improved, and the automobile engine is one of the main excitation sources of automobile vibration, so the requirements for the running smoothness and low noise performance of the automobile engine are becoming higher and higher. In the automobile engine, the engine suspension system plays an important role in reducing automobile vibration and noise due to its good damping performance, self-contained structural characteristics and various structural types.

[0003] The existing engine suspension is generally a metal-rubber combined structure, which usually includes a rubber vulcanization body and a base. During assembly, the rubber vulcanization body is first inserted into the base, and then the mounting plate inserted in the rubber vulcanization body is folded at the rear of the base, thereby assembling the engine suspension. The rubber vulcanization body includes a metal structure upper mounting seat, and the base is usually also a metal material structure of steel or aluminum. Due to the large load borne by the engine suspension and the complex operating conditions, the suspension body of steel or aluminum material structure is large in size and heavy in weight. At the same time, the existing suspension needs to fold the mounting plate during assembly, further increasing the complexity of the process, increasing the production cost, and reducing the reliability of the suspension. In order to solve the above problems, the following patents have appeared in the prior art:

[0004] 1. The utility model patent with the patent number "201821232279.6" and the patent name "a novel engine front and rear damping pad" includes an outer shell and an inner cavity shell. The outer shell is arranged on the outer side of the inner cavity shell, and the inner cavity shell is embedded in the inner part of the outer shell. This suspension damping pad overcomes the shortcomings of traditional products such as being heavy, simple structure, and insufficient rubber stiffness. In addition, an inner and outer linking component is arranged between the outer shell and the inner cavity shell, which can reduce the load and torque force of the damping pad itself and improve the service life of the damping pad.

[0005] 2. The utility model patent with the patent number "201020539725.5" and the patent name "a rear suspension cushion assembly for an engine" includes an inner frame connected to the engine. The inner frame is vulcanized into an integral structure with a rubber body and a steel plate. The steel plate is connected to an outer frame and is fixed to the bottom surface of the outer frame by a buckle. The outer frame is fixed to the frame by bolts. The rear suspension cushion assembly in this scheme has excellent strength and reasonable stress distribution, has good limiting function, and can ensure that the power assembly can still maintain a good power assembly posture under driving conditions.

[0006] However, the above-mentioned patents still have the following problems:

[0007] 1. The connection between the shock absorber and the outer shell has limited stability. When the car is subjected to heavy loads, there is a risk that the shock absorber may loosen and fall off the outer shell, making it difficult to guarantee the reliability of the installation.

[0008] 2. The lack of weight reduction design in the outer shell, inner shell, or frame results in a still relatively large overall weight of the suspension, which is not conducive to the lightweighting of the suspension, and the installation process is more complicated, with limited load-bearing capacity.

[0009] In conclusion, designing a lightweight automotive engine mount with a locking mechanism that is simple to manufacture, has high installation reliability, and meets lightweight requirements is an urgent problem to be solved. Summary of the Invention

[0010] To address the aforementioned problems, this invention provides a lightweight automotive engine mount with a locking mechanism. By matching the locking mechanism between the inner wall of the lightweight housing and the outer wall of the elastic rubber body, the installation reliability of the engine mount can be improved, the installation process can be simplified, and the load-bearing capacity can be enhanced.

[0011] To achieve the above objectives, the present invention proposes the following technical solution: a lightweight automotive engine mount with a locking mechanism, comprising a lightweight housing and an elastic rubber body accommodated within the lightweight housing via an insertion method. The lightweight housing includes a bottom mounting base and a side support base surrounding the upper end of the bottom mounting base, forming a receiving cavity for accommodating the elastic rubber body between the side support base and the bottom mounting base. The side support base includes a rear bearing wall and a front weight-reducing wall disposed opposite to the rear bearing wall, with side bearing walls symmetrically connected between the rear bearing wall and the front weight-reducing wall. A rigid bearing plate is provided on the inner wall of the side bearing wall, and a locking mechanism is matched between the rigid bearing plate and the outer wall of the elastic rubber body.

[0012] Preferably, the locking mechanism includes a clamping platform located on the rigid bearing plate. When the elastic rubber body is inserted into the receiving cavity and clamped in the receiving groove, the clamping platform locks the elastic rubber body by cooperating with the outer wall of the elastic rubber body.

[0013] Preferably, the clamping platform is located at the upper end of the rigid bearing plate. When the elastic rubber body is clamped in the receiving groove, the clamping platform abuts against the upper end surface of the outer wall of the elastic rubber body. The clamping platform includes one located in the middle of the upper end of the rigid bearing plate, or two or more evenly distributed on the upper end of the rigid bearing plate.

[0014] Preferably, the cross-section S of the clamping platform is a right-angled triangle structure, including a right-angled side one that is in contact with the rigid bearing plate, a right-angled side two that extends from the lower end of the right-angled side toward the cavity, and an inclined side connecting the right-angled side one and the right-angled side two; when the clamping platform is pressed against the upper end surface of the outer wall of the elastic rubber body, the right-angled side two is clamped and attached to the upper end surface of the outer wall of the elastic rubber body.

[0015] Preferably, the locking mechanism comprises clamping platforms on the outer wall of the elastic rubber body and clamping grooves on the inner wall of the rigid bearing plate and matched with the clamping platforms, when the elastic rubber body is inserted into the accommodating cavity and clamped in the accommodating groove, the elastic rubber body is locked by the cooperation of the clamping platforms and the clamping grooves; the clamping platform comprises one, two or more and the clamping platform is located on the upper, middle or lower part of the outer wall of the elastic rubber body.

[0016] Preferably, the cross section S of the clamping platform is a right triangle structure, comprising a right angle side one abutting with the outer wall of the elastic rubber body, a right angle side two extending from the upper end of the right angle side one towards the rigid bearing plate and an inclined side connected between the right angle side one and the right angle side two; when the clamping platform is clamped in the clamping groove, the right angle side two is clamped and abutted on the upper end surface of the clamping groove.

[0017] Preferably, the clamping groove and the clamping platform are located on the lower part of the rigid bearing plate and the outer wall of the elastic rubber body respectively, the clamping groove is a rectangular groove structure opened from the surface of the rigid bearing plate towards the side away from the accommodating groove, and the thickness of the clamping groove is not more than 5mm.

[0018] Preferably, the length of the right angle side two is not more than 5mm; the included angle α between the right angle side two and the inclined side one is not less than 60°.

[0019] Preferably, the upper part of the rear bearing wall comprises a bearing platform extending outwardly towards the side away from the accommodating cavity, the bearing platform comprises a middle straight section and a side arc section, and the middle straight section and the side arc section are both provided with a weight-reducing groove one; the thickness of the middle straight section is 3mm-5mm.

[0020] Preferably, the front weight-reducing wall comprises a middle plane section and side transition sections located on both sides of the middle plane section and connected with the side bearing sections, the side transition sections are arc structures, the middle part of the middle plane section is concave to form a middle concave section towards the bottom mounting base, the middle plane section, the middle concave section and the side bearing sections are all provided with a weight-reducing groove two, and the bottom wall of the bottom mounting base is provided with a weight-reducing groove three.

[0021] The beneficial effects of the present application are:

[0022] 1、The locking mechanism is arranged between the inner wall of the lightweight shell and the outer wall of the elastic rubber body, when the elastic rubber body is accommodated into the accommodating cavity of the lightweight shell, the locking mechanism can lock the elastic rubber body and the lightweight shell, which can improve the stability of the engine suspension installation, reduce the installation process and improve the use performance of the engine suspension.

[0023] 2、The weight-reducing structures are arranged on the bottom mounting base, the rear bearing wall and the front weight-reducing wall of the lightweight shell, which can realize the lightweight design of the engine suspension while ensuring the supporting performance of the engine suspension. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the engine mount provided in Embodiment 1 of the present invention. Figure 1 .

[0025] Figure 2 This is a schematic diagram of the overall structure of the engine mount provided in Embodiment 1 of the present invention. Figure 2 .

[0026] Figure 3 This is a schematic diagram of the overall structure of the lightweight shell provided in Embodiment 1 of the present invention.

[0027] Figure 4 This is a partial structural schematic diagram of the lightweight shell provided in Embodiment 1 of the present invention.

[0028] Figure 5 This is a schematic diagram of the clamping table provided in Embodiment 1 of the present invention.

[0029] Figure 6 This is a schematic diagram of the structure of the elastic rubber body provided in Embodiment 2 of the present invention.

[0030] Figure 7 This is a schematic diagram of the clamping table provided in Embodiment 2 of the present invention.

[0031] Figure 8 This is a schematic diagram of the lightweight shell provided in Embodiment 2 of the present invention.

[0032] Reference numerals: 1. Lightweight outer shell; 2. Elastic rubber body; 3. Bottom mounting base; 4. Side support base; 5. Receiving cavity; 6. Rear bearing wall; 7. Front weight-reducing wall; 8. Side bearing wall; 9. Rigid bearing plate; 10. Receiving groove; 11. Clamping platform; 12. Clamping groove; 13. Right angle side one; 14. Inclined side; 15. Bearing platform; 16. Central straight section; 17. Side curved section; 18. Weight-reducing groove one; 19. Central flat section; 20. Central recessed section; 21. Side transition section; 22. Weight-reducing groove two; 23. Upper end face of the outer wall of the elastic rubber body; 25. Outer wall of the elastic rubber body; 26. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the following description is provided in conjunction with the appendix. Figures 1-8 The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and do not constitute a limitation thereof. Example 1

[0034] A lightweight automotive engine mount with a locking mechanism, such as Figures 1-3As shown, it comprises a lightened shell 1 and an elastic rubber body 2, the elastic rubber body 2 is inserted into the lightened shell 1, the lightened shell 1 comprises a bottom mounting base 3 and a side supporting base 4 which is arranged on the upper end of the bottom mounting base 3, and a containing cavity 5 for containing the elastic rubber body 2 is formed between the side supporting base 4 and the bottom mounting base 3.

[0035] The side supporting base 4 comprises a rear bearing wall 6 and a front lightened wall 7 which is arranged opposite to the rear bearing wall 6, and a side bearing wall 8 is symmetrically connected between the rear bearing wall 6 and the front lightened wall 7; the rear bearing wall 6 is the main bearing area of the engine suspension, as Figure 2 As shown, the upper part of the rear bearing wall 6 comprises a bearing platform 16 which extends outwardly away from the containing cavity 5, the bearing platform 16 comprises a middle straight section 17 and side arc sections 18 which are located on both sides of the middle straight section 17, and a lightened groove 19 is arranged on the middle straight section 17 and the side arc sections 18; the thickness of the middle straight section 17 is 3mm-5mm, preferably 4mm; the bearing platform 16 improves the bearing capacity of the main bearing area of the rear bearing wall 6, the lightened groove 19 reduces the overall weight of the engine suspension, and ensures the lightening of the engine suspension.

[0036] A rigid bearing plate 9 is arranged on the inner wall 1 of the side bearing wall 8, the two sides of the rigid bearing plate 9 comprise a containing groove 10 which is formed by the inner wall 2 and the inner wall 1 of the rear bearing wall 6, and the elastic rubber body 2 is clamped in the containing cavity 5 through the containing groove 10; as Figure 3 As shown, the front lightened wall 7 comprises a middle plane section 20 and side transition sections 22 which are located on both sides of the middle plane section 20 and connected with the side bearing wall 8, the side transition sections 22 are arc structures, the middle of the middle plane section 20 is concave to form a middle concave section 21; a lightened groove 23 is arranged on the middle plane section 20, the middle concave section 21 and the side bearing wall 8; the middle plane section 20 improves the bearing capacity of the side bearing wall 8, the middle concave section 21 reduces the weight of the side bearing wall 8, and the side transition sections 22 make the side bearing wall 8 and the front lightened wall 7 smoothly transition, which improves the installation stability; a lightened groove 3 is also arranged on the bottom wall of the bottom mounting base 3, and the lightened groove 23 and the lightened groove 3 further realize the lightening of the engine suspension.

[0037] A locking mechanism is matched between the rigid bearing plate 9 and the outer wall 26 of the elastic rubber body; as Figures 3-5 As shown, the locking mechanism comprises a clamping platform 11 which is arranged on the rigid bearing plate 9, when the elastic rubber body 2 is inserted into the containing cavity 5 and clamped in the containing groove 10, the elastic rubber body 2 is locked through the cooperation of the clamping platform 11 and the outer wall 26 of the elastic rubber body; the clamping platform 11 comprises one which is arranged on the middle of the upper end of the rigid bearing plate 9, or two or more which are evenly arranged on the upper end of the rigid bearing plate 9; as Figure 3As shown, the clamping platform 11 in the embodiment includes one at the upper end of the rigid carrier plate 9 and one at the middle of the upper end of the rigid carrier plate 9, which abuts against the upper end surface 25 of the outer wall of the elastic rubber body when the elastic rubber body 2 is clamped in the accommodating groove 10. Those skilled in the art can also provide two or more clamping platforms 11.

[0038] As shown in Figure 4 and Figure 5 , the cross section S of the clamping platform 11 is a right triangle structure, which includes a right angle side one 13 abutting with the rigid carrier plate 9, a right angle side two 14 extending from the lower end of the right angle side one 13 towards the accommodating cavity 5, and an inclined side 15 connected between the right angle side one 13 and the right angle side two 14. When the elastic rubber body 2 is inserted into the accommodating cavity 5, the outer wall 26 of the elastic rubber body slides downward along the inclined side 15, and when the clamping platform 11 abuts against the upper end surface 25 of the outer wall of the elastic rubber body, the right angle side two 14 clamps and abuts against the upper end surface 25 of the outer wall of the elastic rubber body. The length of the right angle side two 14 is not more than 5 mm, preferably 3 mm, which can abut against the upper end surface 25 of the outer wall of the elastic rubber body and will not interfere with the assembly of other components. The angle α between the right angle side two 14 and the inclined side 15 is not less than 60°, preferably not less than 65°. Embodiment Two

[0039] The difference between this embodiment and Embodiment One is that, as shown in Figures 6-8 , the locking mechanism includes the clamping platform 11 on the outer wall 26 of the elastic rubber body and the clamping groove 12 on the inner wall of the rigid carrier plate 9, which are matched, and when the elastic rubber body 2 is inserted into the accommodating cavity 5 and clamped in the accommodating groove 10, the elastic rubber body 2 is locked by the cooperation of the clamping platform 11 and the clamping groove 12.

[0040] The clamping platform 11 includes one, two or more, which is located at the upper, middle or lower part of the outer wall 26 of the elastic rubber body. This embodiment includes one clamping groove 12 and one clamping platform 11 which are matched, and the clamping groove 12 and the clamping platform 11 are located at the lower part of the rigid carrier plate 9 and the outer wall 26 of the elastic rubber body, respectively. The clamping groove 12 is a rectangular groove structure opened from the surface of the rigid carrier plate 9 towards the side away from the accommodating groove 10, and the thickness of the clamping groove 12 is not more than 5 mm. Those skilled in the art can also provide two or more clamping grooves 12 and clamping platforms 11 according to the actual situation, or the clamping groove 12 and the clamping platform 11 can be provided at other positions of the rigid carrier plate 9 and the outer wall 26 of the elastic rubber body.

[0041] As shown in Figure 6 and Figure 7As shown, the cross section S of the clamping platform 11 is a right triangle structure, which comprises a right angle side one 13 abutting with the outer wall 26 of the elastic rubber body, a right angle side two 14 extending from the upper end of the right angle side one 13 towards the rigid bearing plate 9, and an inclined side 15 connected between the right angle side one 13 and the right angle side two 14; when the clamping platform 11 is clamped in the clamping groove 12, the right angle side two 14 is clamped and abuts on the upper end surface of the clamping groove 12.

[0042] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

[0043] The specific embodiments of the present application do not constitute a limitation on the protection scope of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A lightweight automotive engine mount with a locking mechanism, characterized in that, The device includes a lightweight outer shell (1) and an elastic rubber body (2) inserted into the lightweight outer shell (1). The lightweight outer shell (1) includes a bottom mounting base (3) and a side support base (4) surrounding the upper end of the bottom mounting base (3). A receiving cavity (5) for receiving the elastic rubber body (2) is formed between the side support base (4) and the bottom mounting base (3). The side support base (4) includes a rear bearing wall (6) and a front weight-reducing section disposed opposite to the rear bearing wall (6). A side bearing wall (8) is symmetrically connected between the rear bearing wall (6) and the front weight-reducing wall (7); a rigid bearing plate (9) is provided on the inner wall of the side bearing wall (8), and a locking mechanism is matched between the rigid bearing plate (9) and the outer wall (26) of the elastic rubber body; the locking mechanism includes a clamping platform (11) located on the rigid bearing plate (9), which, when the elastic rubber body (2) is inserted into the receiving cavity (5) and clamped in the receiving groove (10), is clamped by the clamping platform. (11) It engages with the outer wall (26) of the elastic rubber body to lock the elastic rubber body (2); the clamping platform (11) is located at the upper end of the rigid bearing plate (9), and when the elastic rubber body (2) is clamped in the receiving groove (10), the clamping platform (11) abuts against the upper end face (25) of the outer wall of the elastic rubber body; the clamping platform (11) includes one located in the middle of the upper end of the rigid bearing plate (9), or two or more evenly distributed on the upper end of the rigid bearing plate (9); the clamping platform (11) The cross section S of the ) is a right-angled triangle structure, including a right-angled side one (13) that is attached to the rigid bearing plate (9), a right-angled side two (14) that extends from the lower end of the right-angled side one (13) toward the cavity (5), and an inclined side (15) connecting the right-angled side one (13) and the right-angled side two (14); when the clamping table (11) is pressed against the upper end face (25) of the outer wall of the elastic rubber body, the right-angled side two (14) is clamped and attached to the upper end face (25) of the outer wall of the elastic rubber body.

2. A lightweight automotive engine mount with a locking mechanism, characterized in that, The device includes a lightweight outer shell (1) and an elastic rubber body (2) inserted into the lightweight outer shell (1). The lightweight outer shell (1) includes a bottom mounting base (3) and a side support base (4) surrounding the upper end of the bottom mounting base (3). A receiving cavity (5) for receiving the elastic rubber body (2) is formed between the side support base (4) and the bottom mounting base (3). The side support base (4) includes a rear bearing wall (6) and a front weight-reducing wall (7) opposite to the rear bearing wall (6). Side bearing walls (8) are symmetrically connected between the weight-reducing walls (7); a rigid bearing plate (9) is provided on the inner wall of the side bearing wall (8), and a locking mechanism is matched between the rigid bearing plate (9) and the outer wall (26) of the elastic rubber body; the locking mechanism includes a clamping platform (11) located on the outer wall (26) of the elastic rubber body and a clamping groove (12) located on the inner wall of the rigid bearing plate (9) and matched with the clamping platform (11). When the elastic rubber body (2) is inserted into the receiving cavity (5) and clamped in the receiving groove (10), At the same time, the elastic rubber body (2) is locked by the cooperation of the clamping table (11) and the clamping groove (12); the clamping table (11) includes one, two or more and the clamping table (11) is located at the upper, middle or lower part of the outer wall (26) of the elastic rubber body; the cross section S of the clamping table (11) is a right-angled triangle structure, including a right-angled side one (13) that fits against the outer wall (26) of the elastic rubber body, a right-angled side two (14) that extends from the upper end of the right-angled side one (13) toward the rigid bearing plate (9) and a right-angled side connected to the right-angled side. The inclined side (15) between the first (13) and the second right-angled side (14); when the clamping platform (11) is clamped in the clamping groove (12), the second right-angled side (14) is clamped and attached to the upper end surface of the clamping groove (12); the clamping groove (12) and the clamping platform (11) are located at the lower part of the outer wall (26) of the rigid bearing plate (9) and the elastic rubber body, respectively. The clamping groove (12) is a rectangular groove structure opened from the surface of the rigid bearing plate (9) toward the side away from the receiving groove (10). The thickness of the clamping groove (12) does not exceed 5mm.

3. The lightweight automotive engine mount with a locking mechanism according to claim 1 or 2, characterized in that, The length of the second right-angled side (14) shall not exceed 5 mm; the angle α between the second right-angled side (14) and the first inclined side (15) shall not be less than 60°.

4. The lightweight automotive engine mount with a locking mechanism according to claim 3, characterized in that, The upper part of the rear bearing wall (6) includes a bearing platform (16) extending outward toward the side away from the receiving cavity (5). The bearing platform (16) includes a central straight section (17) and a side arc section (18). Both the central straight section (17) and the side arc section (18) are provided with a weight reduction groove (19). The thickness of the central straight section (17) is 3mm-5mm.

5. The lightweight automotive engine mount with a locking mechanism according to claim 4, characterized in that, The front weight-reducing wall (7) includes a central planar section (20) and a side transition section (22) located on both sides of the central planar section (20) and connected to the side bearing section. The side transition section (22) is an arc-shaped structure. The central part of the central planar section (20) is recessed towards the bottom mounting base (3) to form a central recessed section (21). The central planar section (20), the central recessed section (21) and the side bearing section are all provided with weight-reducing grooves two (23). The bottom wall of the bottom mounting base (3) is provided with weight-reducing grooves three (24).

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