Engine suspension

Abstract

The utility model provides an engine suspension which comprises an upper installation plate, a lower installation plate and an elastic body, an installation support is arranged on the side, away from the upper installation plate, of the lower installation plate, the lower installation plate is connected with a vehicle frame through the installation support, and the installation support comprises a main plate part, a first connecting plate part and a second connecting plate part. One end of the first connecting plate part obliquely extends in the direction away from the upper mounting plate to form a plate clamping part, and the end, away from the first connecting plate part, of the plate clamping part is bent in the direction where the first connecting plate part is located to form a buckle groove used for being connected with the surface of a frame in a clamped mode. One end of the second connecting plate part obliquely extends in the direction away from the upper mounting plate to form a third connecting plate part, the mounting surface of the third connecting plate part is smoothly connected with the mounting surface of the second connecting plate part to form a bent surface tightly attached to the surface of a frame, and the clamping plate part and the third connecting plate part are arranged on the same side. According to the utility model, the engine power assembly can be preassembled firstly, and then the whole engine power assembly can be mounted on a frame, so that the accuracy of the mounting angle of the engine power assembly is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of engine driving, in particular to an engine suspension. Background Art

[0002] The engine suspension system includes an engine powertrain and an engine suspension adapted thereto. The engine powertrain is mounted on the vehicle frame through the engine suspension. The engine suspension is an important vibration-damping element that isolates the vibration and impact loads caused by uneven road surfaces from being transmitted to the engine, and the engine working excitation load from being transmitted to the vehicle frame.

[0003] At present, the engine suspension used in vehicles includes an upper mounting plate for connecting to the engine powertrain, a lower mounting plate for connecting to the frame, and an elastic body arranged between the upper mounting plate and the lower mounting plate, wherein the lower mounting plate is generally a flat plate structure, and the connection between the engine suspension and the frame is achieved through mounting through holes on the mounting ears designed horizontally on both sides.

[0004] However, during the actual assembly process of the above-mentioned engine mount, since the lower mounting plate of the flat structure design cannot accurately locate the installation position of the engine mount on the frame, the engine mount can only be pre-installed on the frame and then assembled with the engine. However, this assembly method cannot guarantee the accuracy of the installation angle of the engine powertrain on the engine mount, and the phenomenon of offset holes is prone to occur during the assembly process, resulting in assembly difficulties, resulting in a longer assembly time, and reducing the assembly rhythm of the vehicle assembly line. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an engine mount, aiming to solve the problem that the engine mount in the prior art can only be pre-installed on the frame and then assembled with the engine, but this assembly method cannot guarantee the accuracy of the installation angle of the engine powertrain on the engine mount, and the phenomenon of offset holes is prone to occur during the assembly process, causing assembly difficulties, resulting in a longer assembly time and reducing the technical problem of the assembly rhythm of the vehicle assembly line.

[0006] The utility model aims to provide an engine suspension, comprising an upper mounting plate, a lower mounting plate and an elastic body arranged between the upper mounting plate and the lower mounting plate, wherein a mounting bracket is fixedly connected to a side of the lower mounting plate away from the upper mounting plate, and the lower mounting plate is connected to a vehicle frame through the mounting bracket;

[0007] The mounting bracket includes a main board portion, a first connecting plate portion and a second connecting plate portion extending horizontally outward from both sides of the main board portion, one end of the first connecting plate portion is obliquely extended with a clamping plate portion in a direction away from the upper mounting plate, and one end of the clamping plate portion away from the first connecting plate portion is bent in the direction of the first connecting plate portion to form a clamping groove for clamping with the surface of the frame;

[0008] A third connecting plate portion is obliquely extended from one end of the second connecting plate portion in a direction away from the upper mounting plate, and the mounting surface of the third connecting plate portion is smoothly connected to the mounting surface of the second connecting plate portion to form a bent surface for tightly fitting with the surface of the frame, and the clamping plate portion is arranged on the same side as the third connecting plate portion.

[0009] Compared with the existing engine suspension, the engine suspension of the utility model has the beneficial effect that: by setting a mounting bracket on the side of the lower mounting plate away from the upper mounting plate, the mounting bracket is used to accurately pre-position the mounting position of the engine suspension on the frame, so that the engine suspension can be pre-installed with the engine powertrain in the actual assembly process, and then installed on the frame as a whole, so as to ensure the accuracy of the installation angle of the engine powertrain on the engine suspension, avoid the occurrence of the eccentric hole phenomenon during the assembly process, reduce the difficulty of assembly, save assembly time, and thus achieve the purpose of improving the assembly cycle. Specifically, a card plate portion is set at one end of the first connecting plate portion of the mounting bracket, and a snap groove is provided on the card plate portion, and a third connecting plate portion is set at one end of the second connecting plate portion, and a folded curved surface is formed between the third connecting plate portion and the second connecting plate portion, and the snap groove is connected to the surface of the frame, and the folded curved surface is tightly fitted with the surface at the corresponding position of the frame, so as to accurately locate the installation position of the mounting bracket on the frame, thereby achieving the purpose of positioning and installing the entire engine suspension on the frame.

[0010] In addition, the engine mount according to the utility model may also have the following additional technical features:

[0011] Furthermore, an angle between a mounting surface of the third connecting plate portion and a mounting surface of the second connecting plate portion is 125°-135°.

[0012] Furthermore, a bracket weight-reducing hole is provided on a side of the first connecting plate portion close to the main board portion and on the second connecting plate portion, respectively, and a connecting through hole is provided on a side of the first connecting plate portion away from the main board portion and on the third connecting plate portion, respectively, and the aperture of the bracket weight-reducing hole is larger than the aperture of the connecting through hole.

[0013] Furthermore, the third connecting plate portion is smoothly connected to the main board portion via a reinforcing rib portion, and the angle between the surface of the reinforcing rib portion and the mounting surface of the main board portion is 105°-115°.

[0014] Furthermore, the lower mounting plate includes a bottom plate portion and a first mounting ear portion and a second mounting ear portion extending horizontally outward from both sides of the bottom plate portion, the bottom plate portion is provided with the elastic body, one end of the first mounting ear portion is obliquely extended with a bent plate portion in a direction away from the upper mounting plate, and one end of the second mounting ear portion is obliquely extended with a third mounting ear portion in a direction away from the upper mounting plate, the bottom plate portion, the first mounting ear portion, the second mounting ear portion, the third mounting ear portion, and the bent plate portion correspond one-to-one to and are fit-connected with the main board portion, the first connecting plate portion, the second connecting plate portion, the third connecting plate portion, and the card portion, respectively.

[0015] Further, a side of the first mounting ear portion close to the bottom plate portion and the second mounting ear portion are respectively provided with an ear weight reduction hole, the ear weight reduction hole is connected to the bracket weight reduction hole, and the hole diameter of the ear weight reduction hole is smaller than the hole diameter of the bracket weight reduction hole;

[0016] A side of the first mounting ear portion away from the bottom plate portion and the third mounting ear portion are respectively provided with mounting through holes, the mounting through holes are communicated with the connecting through holes, and the aperture of the mounting through holes is smaller than the aperture of the connecting through holes.

[0017] Furthermore, the lower mounting plate also includes side plate portions extending from the other two sides of the bottom plate portion toward the upper mounting plate, and the two side plate portions and the bottom plate portion together form a receiving space for receiving the elastic body.

[0018] Furthermore, at least two press-fit bolts are provided on a side of the upper mounting plate facing away from the lower mounting plate, and the upper mounting plate is connected to the engine power assembly via the press-fit bolts.

[0019] Furthermore, it also includes a cover body, which is detachably connected to the upper mounting plate, and the cover body is provided with a bolt through hole adapted to the press-fit bolt.

[0020] Furthermore, the material of the elastomer is rubber, and the elastomer and the lower mounting plate are integrally vulcanized. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural diagram of the engine suspension of the utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the engine mount of the utility model after the cover is removed;

[0023] Figure 3 It is a structural schematic diagram of the lower mounting plate of the engine suspension of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the mounting bracket in the engine suspension of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the engine mount of the utility model after removing the cover body at the first viewing angle;

[0026] Figure 6 It is a schematic structural diagram of the engine mount of the utility model after removing the cover body at a second viewing angle.

[0027] Among them, the above-mentioned drawings include the following figure marks: 1-upper mounting plate; 11-pressed bolt; 2-lower mounting plate; 21-bottom plate portion; 22-first mounting ear portion; 23-second mounting ear portion; 24-bent plate portion; 25-third mounting ear portion; 26-side plate portion; 27-rubber shock-absorbing sleeve; 201-ear weight-reducing hole; 202-mounting through hole; 3-elastic body; 4-mounting bracket; 41-main board portion; 42-first connecting plate portion; 43-second connecting plate portion; 44-third connecting plate portion; 45-card plate portion; 46-reinforcing rib portion; 401-card groove; 402-bent surface; 403-bracket weight-reducing hole; 404-connecting through hole; 5-cover body.

[0028] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] See also Figures 1 to 6 The utility model discloses an engine suspension, comprising an upper mounting plate 1, a lower mounting plate 2 and an elastic body 3 arranged between the upper mounting plate 1 and the lower mounting plate 2. The upper mounting plate 1 is used to connect the engine power assembly, and a mounting bracket 4 is fixedly connected to the side of the lower mounting plate 2 away from the upper mounting plate 1, and the lower mounting plate 2 is connected to the vehicle frame through the mounting bracket 4.

[0033] As an example, the mounting bracket 4 includes a main board portion 41, a first connecting plate portion 42 and a second connecting plate portion 43 extending horizontally outward from both sides of the main board portion 41, and one end of the first connecting plate portion 42 is obliquely extended with a clamping plate portion 44 in a direction away from the upper mounting plate 1, and one end of the clamping plate portion 44 away from the first connecting plate portion 42 is bent in the direction of the first connecting plate portion 42 to form a clamping groove 401. The design of the clamping groove 401 enables one side of the mounting bracket 4 to be clamped with the surface of the frame, thereby accurately positioning the installation position of one side of the mounting bracket 4 on the frame.

[0034] A third connecting plate portion 45 is obliquely extended from one end of the second connecting plate portion 43 in a direction away from the upper mounting plate 1, and the mounting surface of the third connecting plate portion 45 is smoothly connected to the mounting surface of the second connecting plate portion 43 to form a folded curved surface 402 for tightly fitting with the surface of the frame, and the clamping plate portion 44 is arranged on the same side as the third connecting plate portion 45.

[0035] Furthermore, the angle a between the mounting surface of the third connecting plate portion 45 and the mounting surface of the second connecting plate portion 43 is 125°-135°. In other words, the folded curved surface 402 is set at an obtuse angle, and the angle range of the obtuse angle is 125°-135°. The design of the folded curved surface 402 enables the other side of the mounting bracket 4 to fit with the frame surface at zero angle during the actual assembly process, thereby improving the firmness of the connection between the mounting bracket 4 and the frame. At the same time, the design of the folded curved surface 402 can also assist in locating the mounting position of the other side of the mounting bracket 4 on the frame. The design of the buckle groove 401 can accurately locate the mounting position of the entire mounting bracket 4 on the frame, thereby achieving accurate installation of the engine suspension on the frame. As a specific example, in this embodiment, the angle a between the mounting surface of the third connecting plate portion 45 and the mounting surface of the second connecting plate portion 43 is 130°.

[0036] Furthermore, a bracket weight-reducing hole 403 is respectively provided on the side of the first connecting plate portion 42 close to the main board portion 41 and the second connecting plate portion 43, and a connecting through hole 404 is respectively provided on the side of the first connecting plate portion 42 away from the main board portion 41 and the third connecting plate portion 45, and the aperture of the bracket weight-reducing hole 403 is larger than the aperture of the connecting through hole 404.

[0037] Furthermore, the third connecting plate portion 45 is smoothly connected to the main board portion 41 through a reinforcing rib portion 46, and the angle b between the surface of the reinforcing rib portion 46 and the mounting surface of the main board portion 41 is 105°-115°. The design of the reinforcing rib portion 46 can improve the durability of the third connecting plate portion 45 and prevent the third connecting plate portion 45 from breaking during long-term use. As a specific example, in this embodiment, the angle b between the surface of the reinforcing rib portion 46 and the mounting surface of the main board portion 41 is 109°.

[0038] Furthermore, the lower mounting plate 2 includes a bottom plate portion 21 and a first mounting ear portion 22 and a second mounting ear portion 23 extending horizontally outward from both sides of the bottom plate portion 21, an elastomer 3 is provided on the bottom plate portion 21, one end of the first mounting ear portion 22 is obliquely extended with a bent plate portion 24 in a direction away from the upper mounting plate 1, and one end of the second mounting ear portion 23 is obliquely extended with a third mounting ear portion 25 in a direction away from the upper mounting plate 1, the bottom plate portion 21, the first mounting ear portion 22, the second mounting ear portion 23, the third mounting ear portion 25, and the bent plate portion 24 respectively correspond to the main board portion 41, the first connecting plate portion 42, the second connecting plate portion 43, the third connecting plate portion 45 and the card plate portion 44 on the mounting bracket 4 one by one and are fittedly connected.

[0039] In this embodiment, the connection between the lower mounting plate 2 and the mounting bracket 4 is achieved by welding through a tailored welding process to improve the overall strength of the mounting bracket 4. It should be noted that the connection between the lower mounting plate 2 and the mounting bracket 4 is not limited to the above-mentioned connection method, and can also be other connection methods that can achieve the purpose of the present utility model.

[0040] Furthermore, the side of the first mounting ear portion 22 close to the bottom plate portion 21 and the second mounting ear portion 23 are respectively provided with an ear weight reduction hole 201, the ear weight reduction hole 201 is connected to the bracket weight reduction hole 403, and the aperture of the ear weight reduction hole 201 is smaller than the aperture of the bracket weight reduction hole 403; the side of the first mounting ear portion 22 away from the bottom plate portion 21 and the third mounting ear portion 23 are respectively provided with a mounting through hole 202 connected to the connecting through hole 404, the mounting through hole 202 is connected to the connecting through hole 401, and the aperture of the mounting through hole 202 is smaller than the aperture of the connecting through hole 404.

[0041] Furthermore, the lower mounting plate 2 further includes side plate portions 26 extending from the other two sides of the bottom plate portion 21 toward the upper mounting plate 1, and the side plate portions 26 and the bottom plate portion 21 together form a receiving space for receiving the elastic body 3. In this embodiment, the side plate portions 26 and the bottom plate portion 21 together form a receiving space with a U-shaped cross section, the diameter of the receiving space is larger than the length of the elastic body 3 along the length direction of the bottom plate portion 21, and the elastic body 3 is arranged in the middle of the receiving space. In other words, the side plates 26 and the side surfaces of the elastic body 3 are respectively provided with gaps, and the gap distances are consistent.

[0042] Furthermore, one end of the two side plate portions 26 away from the bottom plate portion 21 is covered with a rubber shock-absorbing sleeve 27 .

[0043] Furthermore, at least two press-fit bolts 11 are provided on a side of the upper mounting plate 1 facing away from the lower mounting plate 2 , and the upper mounting plate 1 is connected to the engine power assembly via the press-fit bolts 11 .

[0044] Furthermore, the engine suspension of the utility model further includes a cover body 5, which is detachably connected to the upper mounting plate 1, and is provided with bolt through holes adapted to the press-fit bolts 11, and the cover body 5 can cover and protect the elastic body 3 and the rubber shock-absorbing sleeves 27 on the side plates 26 on both sides of the bottom plate 21, so as to improve the durability of the entire engine suspension. Specifically, the cover body 5 is provided with a receiving cavity, and the total length of the receiving cavity is greater than the total length of the bottom plate 21, so as to accommodate the elastic body 3 on the bottom plate 21 and the side plates 26 on both sides of the bottom plate 21.

[0045] Furthermore, the material of the elastomer 3 is rubber, and the elastomer 3 and the lower mounting plate 2 are integrally vulcanized and formed, and the elastomer 3 plays a buffering role to increase the safety performance of the entire engine suspension.

[0046] In the actual assembly process, the installation process of the engine mount of the utility model can be as follows: first, the cover body 5 is placed on the upper mounting plate 1, so that the press-fit bolts 11 on the upper mounting plate 1 pass through the bolt through holes on the cover body 5, and the inner wall of the cover body 5 abuts against the surface of the upper mounting plate 1. Then, the press-fit bolts 11 are used to connect the engine powertrain and the engine mount of the utility model to complete the pre-assembly of the engine mount and the engine powertrain.

[0047] Subsequently, the engine suspension pre-installed with the engine powertrain is installed on the frame as a whole to complete the assembly of the engine suspension on the frame. Specifically, the snap groove 401 on one side of the mounting bracket 4 is snapped into the surface of the corresponding position on the frame, and the bent surface 402 on the other side of the mounting bracket 4 is tightly fitted with the surface of the corresponding position on the frame. Through the above operations, the installation position of the engine suspension pre-installed with the engine powertrain on the frame is accurately positioned, and then the engine suspension pre-installed with the engine powertrain is firmly fixed to the frame using fasteners.

[0048] In summary, the engine suspension of the utility model sets a mounting bracket on the side of the lower mounting plate away from the upper mounting plate, and uses the mounting bracket to accurately pre-position the installation position of the engine suspension on the frame, so that the engine suspension can be pre-installed with the engine powertrain in the actual assembly process, and then installed on the frame as a whole, thereby ensuring the accuracy of the installation angle of the engine powertrain on the engine suspension, avoiding the occurrence of offset holes during the assembly process, reducing the difficulty of assembly, saving assembly time, and thus achieving the purpose of improving the assembly rhythm. Specifically, the two sides of the mounting bracket are respectively provided with a snap groove and a folding curved surface, and the snap groove is snapped with the surface of the frame, and the folding curved surface is tightly fitted with the surface at the corresponding position of the frame, so as to accurately locate the installation position of the mounting bracket on the frame, thereby achieving the purpose of positioning and installing the entire engine suspension on the frame.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An engine mount, characterized in that: It includes an upper mounting plate, a lower mounting plate and an elastic body arranged between the upper mounting plate and the lower mounting plate, a mounting bracket is fixedly connected to a side of the lower mounting plate away from the upper mounting plate, and the lower mounting plate is connected to the frame through the mounting bracket; The mounting bracket includes a main board portion, a first connecting plate portion and a second connecting plate portion extending horizontally outward from both sides of the main board portion, one end of the first connecting plate portion is obliquely extended with a clamping plate portion in a direction away from the upper mounting plate, and one end of the clamping plate portion away from the first connecting plate portion is bent in the direction of the first connecting plate portion to form a clamping groove for clamping with the surface of the frame; A third connecting plate portion is obliquely extended from one end of the second connecting plate portion in a direction away from the upper mounting plate, and the mounting surface of the third connecting plate portion is smoothly connected to the mounting surface of the second connecting plate portion to form a bent surface for tightly fitting with the surface of the frame, and the clamping plate portion is arranged on the same side as the third connecting plate portion.

2. The engine mount according to claim 1, characterized in that: An included angle between a mounting surface of the third connecting plate portion and a mounting surface of the second connecting plate portion is 125°-135°.

3. The engine mount according to claim 1, characterized in that: A bracket weight-reducing hole is provided on the side of the first connecting plate portion close to the main board portion and on the second connecting plate portion, respectively. A connecting through hole is provided on the side of the first connecting plate portion away from the main board portion and on the third connecting plate portion, respectively. The aperture of the bracket weight-reducing hole is larger than the aperture of the connecting through hole.

4. The engine mount according to claim 1, characterized in that: The third connecting plate portion is smoothly connected to the main board portion via a reinforcing rib portion, and the angle between the surface of the reinforcing rib portion and the mounting surface of the main board portion is 105°-115°.

5. The engine mount according to claim 3, characterized in that: The lower mounting plate includes a bottom plate portion and a first mounting ear portion and a second mounting ear portion extending horizontally outward from both sides of the bottom plate portion, respectively. The bottom plate portion is provided with the elastic body, one end of the first mounting ear portion is obliquely extended with a bent plate portion in a direction away from the upper mounting plate, and one end of the second mounting ear portion is obliquely extended with a third mounting ear portion in a direction away from the upper mounting plate, and the bottom plate portion, the first mounting ear portion, the second mounting ear portion, the third mounting ear portion, and the bent plate portion correspond to the main board portion, the first connecting plate portion, the second connecting plate portion, the third connecting plate portion, and the card portion, respectively, and are closely connected.

6. The engine mount according to claim 5, characterized in that: A side of the first mounting ear portion close to the bottom plate portion and the second mounting ear portion are respectively provided with an ear weight reduction hole, the ear weight reduction hole is connected to the bracket weight reduction hole, and the hole diameter of the ear weight reduction hole is smaller than the hole diameter of the bracket weight reduction hole; A side of the first mounting ear portion away from the bottom plate portion and the third mounting ear portion are respectively provided with mounting through holes, the mounting through holes are communicated with the connecting through holes, and the aperture of the mounting through holes is smaller than the aperture of the connecting through holes.

7. The engine mount according to claim 5, characterized in that: The lower mounting plate further comprises side plate portions extending from the other two sides of the bottom plate portion toward the upper mounting plate, and the two side plate portions and the bottom plate portion together form a receiving space for receiving the elastic body.

8. The engine mount according to claim 1, characterized in that: At least two press-fit bolts are arranged on a side of the upper mounting plate away from the lower mounting plate, and the upper mounting plate is connected to the engine power assembly via the press-fit bolts.

9. The engine mount according to claim 8, characterized in that: It also includes a cover body, which is detachably connected to the upper mounting plate, and the cover body is provided with a bolt through hole adapted to the press-fit bolt.

10. The engine mount according to claim 1, characterized in that: The elastic body is made of rubber, and the elastic body and the lower mounting plate are integrally vulcanized.

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