Suspension system of engine and vehicle

Abstract

The invention discloses a suspension system of an engine and a vehicle, and the suspension system of the engine comprises a vehicle frame which comprises two vehicle frame longitudinal beams which are distributed at an interval; the engine is arranged between the two frame longitudinal beams; the suspension pull rod is located between the engine and the frame longitudinal beams, and the two ends of the suspension pull rod are connected with the engine and the corresponding frame longitudinal beams respectively. According to the suspension system of the engine, the engine is connected with the frame through the suspension pull rod, the suspension pull rod is simple in structure and light in weight, the weight of the whole vehicle can be reduced, the light weight of the vehicle is improved, then the endurance and acceleration performance of the vehicle is improved, the manufacturing cost can be reduced by using the suspension pull rod, the using effect is better, and the application range is wider.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular to a suspension system of an engine and a vehicle having the suspension system of the engine. Background Art

[0002] With the improvement of people's quality of life, cars have become an indispensable means of transportation for people. When manufacturing vehicles, it is necessary to consider issues such as time consumption, cost, and lightweight of the vehicle. In today's automobile market, the left and right suspensions of the engine in the longitudinal arrangement of the powertrain adopt a supporting structure, and the suspension system is generally circular hydraulic, circular rubber or square rubber. However, the above-mentioned types of suspension systems have more manufacturing processes, cumbersome assembly, and relatively high component costs, and there is room for improvement. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an engine suspension system, which has a simple structure, low manufacturing cost, and light weight, and can reduce the weight of the entire vehicle, improve the lightweight of the vehicle, and thus improve the vehicle's endurance and acceleration performance.

[0004] The engine suspension system according to an embodiment of the present invention includes: a vehicle frame, the vehicle frame including two frame longitudinal beams spaced apart from each other; an engine, the engine being installed between the two frame longitudinal beams; a suspension rod, the suspension rod being located between the engine and the frame longitudinal beam, and the two ends of the suspension rod being respectively connected to the engine and the corresponding frame longitudinal beam.

[0005] According to the engine suspension system of the embodiment of the present invention, the engine is connected to the frame through a suspension rod. The suspension rod has a simple structure and is light in weight, which can reduce the weight of the entire vehicle, improve the lightweight of the vehicle, and further improve the vehicle's endurance and acceleration performance. The use of the suspension rod can reduce manufacturing costs, achieve better use effects, and have a wider range of applications.

[0006] According to the engine suspension system of some embodiments of the present invention, two mounting bosses are provided at the front of the engine, and mounting brackets are provided on the sides of the two frame longitudinal beams facing each other, and the two mounting bosses and the two mounting brackets correspond one to one; the two suspension rods are respectively connected one to one between the two mounting bosses and the corresponding mounting brackets.

[0007] According to the engine suspension system of some embodiments of the present invention, at least one of the two mounting brackets is connected to a mounting rod, and the mounting rod is connected to the engine and is spaced apart from the mounting boss.

[0008] According to the engine suspension system of some embodiments of the present invention, a first mounting portion is provided at one end of the suspension rod, a first suspension is installed on the first mounting portion, and the first suspension is used to be connected to the engine, and a second mounting portion is provided at the other end of the suspension rod, a second mounting portion is installed on the second suspension, and the second suspension is used to be connected to the frame longitudinal beam.

[0009] According to the engine suspension system of some embodiments of the present invention, the first suspension and / or the second suspension includes a suspension main spring and a suspension inner tube, the first mounting portion and / or the second mounting portion is configured as a mounting hole, the suspension main spring is suitable for being pressed into the mounting hole, the suspension inner tube is mounted on the suspension main spring, and the suspension main spring is used to be connected to the engine or the frame longitudinal beam.

[0010] According to some embodiments of the engine suspension system of the present invention, the end of the suspension main spring is connected to a limiting pad, and the limiting pad is suitable for limiting and pressing against the end edge of the mounting hole;

[0011] Wherein, both ends of the suspension main spring are connected with the limiting pads, a buffer gap is formed at the connection between the limiting pad and the suspension main spring, and the width of the buffer gap formed at one end of the suspension main spring is greater than the width of the buffer gap formed at the other end.

[0012] According to the engine suspension system of some embodiments of the present invention, one of the outer circumferential wall of the suspension main spring and the inner circumferential wall of the mounting hole is provided with a positioning recess and the other is provided with a positioning protrusion, and the positioning recess and the positioning protrusion are matched along the axial limit of the mounting hole.

[0013] According to some embodiments of the present invention, the engine suspension system further includes: a transmission, wherein the transmission is located behind the engine, and the frame further includes a frame crossbeam extending in the transverse direction, and the transmission is suspended below the frame crossbeam.

[0014] According to the engine suspension system of some embodiments of the present invention, the frame crossbeam is provided with two spaced-apart connecting brackets, a fixing portion is provided above the transmission, the fixing portion extends between the two connecting brackets, and the fixing portion is provided with a third suspension fixedly connected to the connecting brackets.

[0015] The present invention also provides a vehicle.

[0016] A vehicle according to an embodiment of the present invention comprises any one of the above-mentioned engine suspension systems.

[0017] The vehicle and the suspension system of the above-mentioned engine have the same advantages as those of the prior art, which will not be described in detail here.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 Schematic diagram of the structure of the engine suspension system according to an embodiment of the present invention Figure 1 ;

[0021] Figure 2 Schematic diagram of the structure of the engine suspension system according to an embodiment of the present invention Figure 2 ;

[0022] Figure 3 Schematic diagram of the structure of the engine suspension system according to an embodiment of the present invention Figure 3 ;

[0023] Figure 4 Schematic diagram of the structure of the suspension rod according to an embodiment of the present invention Figure 1 ;

[0024] Figure 5 Schematic diagram of the structure of the suspension rod according to an embodiment of the present invention Figure 2 ;

[0025] Figure 6 is a cross-sectional view of a first mounting portion according to an embodiment of the present invention;

[0026] Figure 7 is a cross-sectional view of a second mounting portion according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Suspension rod 1, first mounting portion 11, first suspension 111, second mounting portion 12, second suspension 121, positioning recess 13, suspension main spring 14, positioning protrusion 141, limiting pad 142, buffer gap 143, suspension inner tube 15, third suspension 16,

[0029] Engine 2 , mounting boss 21 , vehicle frame 3 , vehicle frame longitudinal beam 31 , mounting bracket 311 , vehicle frame cross beam 32 , connecting bracket 321 , mounting tie rod 4 , transmission 5 , fixing portion 51 . DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Reference below Figure 1-Figure 7 The suspension system of the engine 2 according to the embodiment of the present invention is described, which has a simple structure, low manufacturing cost, and light weight, and can reduce the weight of the entire vehicle, improve the lightweight of the vehicle, and further improve the vehicle endurance and acceleration performance.

[0034] like Figure 1-Figure 7 As shown, the suspension system of the engine 2 according to the embodiment of the present invention includes: a vehicle frame 3, an engine 2 and a suspension rod 1.

[0035] The frame 3 includes two frame longitudinal beams 31 that are spaced apart from each other. The engine 2 is installed between the two frame longitudinal beams 31 . The suspension rod 1 is located between the engine 2 and the frame longitudinal beam 31 . Both ends of the suspension rod 1 are connected to the engine 2 and the corresponding frame longitudinal beam 31 , respectively.

[0036] Among them, the power unit is mostly fixed to the vehicle body and subframe by three-point suspension, and the engine's suspension system is used to support the power unit, that is, the weight of the engine 2, the transmission 5, etc. The engine's suspension system can suppress the dynamic displacement of the power unit caused by external forces such as the internal reaction force of the vehicle, and prevent the vibration from the engine 2, etc. from being transmitted to the vehicle body, that is, the engine's suspension system can play a buffering role and play a good vibration isolation role, thereby improving driving comfort.

[0037] Specifically, the engine suspension system is provided with a suspension rod 1, which is used to connect the engine 2 and the frame 3. The suspension rod 1 is set as a rod-shaped structure, and both sides of the middle part of the connecting rod are provided with inwardly recessed groove structures, thereby reducing the weight of the suspension rod 1, saving manufacturing costs, and improving the lightweight of the vehicle. The engine suspension system is provided with an engine 2, which can provide power for the vehicle, and the engine suspension system is also provided with a frame 3, which provides installation points for internal components of the vehicle and provides support for the entire vehicle. The frame 3 is provided with a frame longitudinal beam 31, and the frame longitudinal beam 31 is provided with two, and the two frame longitudinal beams 31 are distributed at intervals. The engine 2 is installed between the two frame longitudinal beams 31, and the engine 2 is connected to the frame 3 through the suspension rod 1, and the suspension rod 1 can weaken the vibration and force between the frame 3 and the engine 2, thereby improving driving comfort.

[0038] Furthermore, when the vehicle is started, the engine 2 runs and the engine 2 generates vibrations, which can be transmitted to the suspension rod 1 connected to the engine 2. The suspension rod 1 can weaken the vibrations, thereby allowing the suspension rod 1 to play a vibration isolation role, thereby preventing the vibrations from being transmitted to the frame 3, thereby improving driving comfort, and when the vehicle is traveling, the frame 3 is subjected to an external force, which can be transmitted to the suspension rod 1 connected to the frame 3. The suspension rod 1 can weaken the force, thereby allowing the suspension rod 1 to protect the engine 2 and extend the service life of the engine 2.

[0039] In the present embodiment, two suspension rods 1 are provided, so that the vibration generated by the engine 2 can be weakened by the two suspension rods 1 respectively, thereby improving driving comfort, and the external force transmitted from the frame 3 to the engine 2 through the two suspension rods 1 can be weakened, thereby protecting the engine 2.

[0040] According to the engine suspension system of the embodiment of the present invention, the engine 2 is connected to the frame 3 through the suspension rod 1. The suspension rod 1 has a simple structure and is light in weight, which can reduce the weight of the entire vehicle, improve the lightweight of the vehicle, and further improve the vehicle's endurance and acceleration performance. The use of the suspension rod 1 can reduce manufacturing costs, achieve better use effects, and have a wider range of applications.

[0041] In some embodiments, two mounting bosses 21 are provided at the front of the engine 2, and mounting brackets 311 are provided on the sides of the two frame longitudinal beams 31 facing each other. The two mounting bosses 21 and the two mounting brackets 311 correspond one-to-one, and the two suspension rods 1 are respectively connected one-to-one between the two mounting bosses 21 and the corresponding mounting brackets 311.

[0042] Specifically, Figure 1 As shown, the frame 3 is provided with a longitudinal beam frame longitudinal beam 31, and the longitudinal beam frame longitudinal beam 31 is provided with two longitudinal beam frame longitudinal beams 31, and the two longitudinal beam frame longitudinal beams 31 are spaced apart and distributed on both sides of the engine 2, the engine 2 is connected to the frame 3 through the suspension rod 1, and the two longitudinal beam frame longitudinal beams 31 are provided with mounting brackets 311 on the sides facing each other, the engine 2 is provided with two mounting bosses 21, and the two mounting bosses 21 are arranged on both sides of the front part of the engine 2, and the positions of the two mounting bosses 21 correspond to the two mounting brackets 311, the two suspension rods 1 are respectively located on both sides of the engine 2, and are respectively connected between the two mounting bosses 21 and the corresponding mounting brackets 311 one by one, thereby ensuring that the vibration generated by the engine 2 can be transmitted to both sides, and the vibration is weakened by the two suspension rods 1, thereby improving the weakening effect and ensuring driving comfort.

[0043] In some embodiments, at least one of the two mounting brackets 311 is connected to a mounting rod 4 , which is connected to the engine 2 and spaced apart from the mounting boss 21 .

[0044] Specifically, Figure 1 As shown, at least one mounting bracket 311 is connected to the mounting rod 4, that is, both mounting brackets can be connected to the mounting rod 4, or only one mounting bracket 311 is connected to the mounting rod 4. In the present embodiment, only one mounting bracket 311 is connected to the mounting rod 4. In actual use, both mounting brackets 311 can also be connected to the mounting rod 4. Installing only one mounting rod 4 can reduce weight and improve the lightweight of the vehicle. The mounting rod 4 is used to be connected to the engine 2, and the mounting rod 4 is spaced apart from the mounting boss 21.

[0045] Furthermore, the mounting rod 4 is mainly responsible for isolating and attenuating the vibration excitation of the engine 2 around the crankshaft direction, while limiting the movement position of the engine 2 around the crankshaft direction, ensuring that the engine 2 is always in the designed position, improving driving maneuverability, and at the same time, the mounting point of the mounting rod 4 is designed at the lowest point of the engine 2, so that the mounting rod 4 is only subjected to pressure or tension in a single direction, reducing the shear force on the mounting rod 4, thereby extending the service life of the mounting rod 4 and saving costs.

[0046] In some embodiments, a first mounting portion 11 is provided at one end of the suspension rod 1, and a first suspension 111 is installed on the first mounting portion 11. The first suspension 111 is used to be connected to the engine 2. A second mounting portion 12 is provided at the other end of the suspension rod 1. The second mounting portion 12 is installed on the second suspension 121. The second suspension 121 is used to be connected to the frame 3.

[0047] Specifically, the engine suspension system is provided with a suspension rod 1, which is used to connect the engine 2 and the frame 3. The suspension rod 1 is set as a rod-shaped structure, and both sides of the middle part of the connecting rod are provided with inwardly recessed groove structures, thereby reducing the weight of the suspension rod 1, saving manufacturing costs, and improving the lightweight of the vehicle. One end of the suspension rod 1 is provided with a first mounting portion 11, and the other end is provided with a second mounting portion 12. The first mounting portion 11 is connected to the engine 2, and the second mounting portion 12 is connected to the frame 3, and then the engine 2 is installed on the frame 3 through the suspension rod 1, and the first mounting portion 11 is installed with a first suspension 111, and the second mounting portion 12 is installed with a second suspension 121. One end of the suspension rod 1 is connected to the engine 2 through the first suspension 111, and the other end is connected to the frame 3 through the second suspension 121.

[0048] Furthermore, when the vehicle is started, the engine 2 runs and the operation of the engine 2 generates vibrations, which can be transmitted to the first suspension 111 of the suspension rod 1 connected to the engine 2. The first suspension 111 can weaken the vibrations, and the weakened vibrations are transmitted along the rod body of the suspension rod 1 to the second suspension 121. The second suspension 121 can weaken the vibrations again, so that the suspension rod 1 plays a vibration isolation role, thereby preventing the vibrations from being transmitted to the frame 3, thereby improving driving comfort, and when the vehicle is driving, the frame 3 is subjected to an external force, and the force can be transmitted to the second suspension 121 of the suspension rod 1 connected to the frame 3. The second suspension 121 can disperse the force, and the dispersed force is transmitted along the rod body of the suspension rod 1 to the first suspension 111. The first suspension 111 can disperse the force again, thereby enabling the suspension rod 1 to protect the engine 2 and extend the service life of the engine 2.

[0049] In the present embodiment, two suspension rods 1 are provided, so that the vibration generated by the engine 2 can be weakened by the two suspension rods 1 respectively, thereby improving driving comfort, and the external force transmitted from the frame 3 to the engine 2 through the two suspension rods 1 can be weakened, thereby protecting the engine 2.

[0050] In some embodiments, the first suspension 111 and / or the second suspension 121 include a suspension main spring 14 and a suspension inner tube 15, that is, the first suspension 111 and the second suspension 121 both include a suspension main spring 14 and a suspension inner tube 15, or only the first suspension 111 includes the suspension main spring 14 and the suspension inner tube 15, or only the second suspension 121 includes the suspension main spring 14 and the suspension inner tube 15. In this embodiment, the first suspension 111 and the second suspension 121 both include a suspension main spring 14 and a suspension inner tube 15.

[0051] And the first mounting portion 11 and / or the second mounting portion 12 are configured as mounting holes, that is, the first mounting portion 11 and the second mounting portion 12 are both configured as mounting holes, or only the first mounting portion 11 is configured as a mounting hole, or only the second mounting portion 12 is configured as a mounting hole. In the present embodiment, the first mounting portion 11 and the second mounting portion 12 are both configured as mounting holes, the suspension main spring 14 is suitable for being pressed into the mounting hole, the suspension inner tube 15 is installed on the suspension main spring 14, and the suspension main spring 14 is used to be connected to the engine 2 or the frame longitudinal beam 31.

[0052] Specifically, Figure 4-Figure 7 As shown, the first mounting portion 11 is arranged at one end of the suspension rod 1, and the first mounting portion 11 is arranged as a mounting hole, the first mounting portion 11 is provided with a first suspension 111, the first suspension 111 is provided with a suspension main spring 14 and a suspension inner tube 15, the suspension main spring 14 is pressed into the mounting hole, and the suspension inner tube 15 is installed in the suspension main spring 14, the suspension main spring 14 arranged in the first mounting portion 11 is used to be connected to the engine 2, the second mounting portion 12 is arranged at the other end of the suspension rod 1, and the second mounting portion 12 is also arranged as a mounting hole, The second mounting portion 12 is provided with a second suspension 121, and the second suspension 121 is also provided with a suspension main spring 14 and a suspension inner tube 15. The suspension main spring 14 is pressed into the mounting hole, and the suspension inner tube 15 is installed in the suspension main spring 14. The suspension main spring 14 provided in the second mounting portion 12 is used to be connected to the frame longitudinal beam 31, so that the engine 2 and the frame longitudinal beam 31 transmit vibration or external force to the suspension rod 1 through the suspension main spring 14, thereby improving the weakening of vibration and the dispersion of external force, etc., thereby improving driving comfort.

[0053] In some embodiments, the end of the suspension main spring 14 is connected to a limiting pad 142, and the limiting pad 142 is suitable for limiting and pressing against the end edge of the mounting hole, wherein both ends of the suspension main spring 14 are connected to the limiting pad 142, and a buffer gap 143 is formed at the connection between the limiting pad 142 and the suspension main spring 14, and the width of the buffer gap 143 formed at one end of the suspension main spring 14 is greater than the width of the buffer gap 143 formed at the other end.

[0054] Specifically, Figure 6-Figure 7As shown, the suspension main spring 14 is pressed into the mounting hole, and the suspension main spring 14 and the mounting hole are interference fit, so that the suspension main spring 14 is more tightly connected to the mounting hole after being installed in the mounting hole, thereby ensuring the reliability of the connection, and the end of the suspension main spring 14 is connected to a limiting pad 142, and the radial dimension of the limiting pad 142 arranged on the first mounting part 11 is smaller than the maximum radial dimension of the first mounting part 11. When the first mounting part 11 is connected to the engine 2, the engine 2 will generate an axial force on the suspension main spring 14 along the suspension main spring 14, and the force first acts on the limiting pad 142 arranged on the end of the suspension main spring 14, thereby limiting the limiting pad 142 and pressing it against the end edge of the mounting hole, thereby protecting the end of the mounting hole of the first mounting part 11 and extending the service life.

[0055] Moreover, the radial dimension of the limiting pad 142 arranged on the second mounting portion 12 is smaller than the maximum radial dimension of the second mounting portion 12. When the second mounting portion 12 is connected to the frame 3, the frame 3 will also generate an axial force on the suspension main spring 14. The force first acts on the limiting pad 142 arranged on the end of the suspension main spring 14, and then the limiting pad 142 is limited and pressed against the end edge of the mounting hole, thereby protecting the end of the mounting hole of the second mounting portion 12 and extending the service life.

[0056] At the same time, if Figure 6-Figure 7 As shown, one end of the suspension main spring 14 is connected to the limiting pad 142, and the other end is also connected to the limiting pad 142, that is, both ends of the suspension main spring 14 along the axial direction are connected to the limiting pad 142, the radial dimension of the limiting pad 142 is larger than the radial dimension of the suspension main spring 14, and a buffer gap 143 is arranged at the connection between the limiting pad 142 and the suspension main spring 14. When the engine 2 or the frame 3 generates a force on the suspension main spring 14, the force first acts on the limiting pads 142 arranged at both ends of the suspension main spring 14, and a buffer gap 143 is arranged between the limiting pad 142 and the suspension main spring 14, so that the force can be weakened through the buffer gap 143, thereby protecting the end of the mounting hole, and making the operation smoother and improving the driving comfort.

[0057] Among them, the width of the buffer gap 143 formed at one end of the suspension main spring 14 is greater than the width of the buffer gap 143 formed at the other end, that is, the buffer gaps 143 formed at both ends of the suspension main spring 14 are of different sizes, and the two buffer pads are asymmetrically designed. When the vehicle is actually running, the speed of the vehicle when moving forward is much greater than the speed when moving backward, so that the force generated by the vehicle in the forward direction is greater than the force generated in the backward direction. The end with a larger buffer gap 143 can be set in the forward direction, and the end with a smaller buffer gap 143 can be set in the backward direction, so that buffer forces of different sizes correspond to buffer gaps 143 of different widths, thereby improving the buffering effect of the buffer gap 143 on the force.

[0058] In some embodiments, one of the outer circumferential wall of the suspension main spring 14 and the inner circumferential wall of the mounting hole is provided with a positioning recess 13 and the other is provided with a positioning protrusion 141, that is, the positioning recess 13 can be set on the outer circumferential wall of the suspension main spring 14, and can also be set on the inner circumferential wall of the mounting hole, and the positioning protrusion 141 can be set on the outer circumferential wall of the suspension main spring 14, and can also be set on the inner circumferential wall of the mounting hole, that is, when the positioning recess 13 is set on the outer circumferential wall of the suspension main spring 14, the positioning protrusion 141 is set on the inner circumferential wall of the mounting hole, and when the positioning recess 13 is set on the inner circumferential wall of the mounting hole, the positioning protrusion 141 is set on the outer circumferential wall of the suspension main spring 14, and the positioning recess 13 and the positioning protrusion 141 are matched along the axial limit of the mounting hole.

[0059] Specifically, Figure 6-Figure 7 As shown, in the present embodiment, the positioning recess 13 is arranged on the inner circumferential wall of the mounting hole, and the positioning protrusion 141 is arranged on the outer circumferential wall of the suspension main spring 14. The positioning recess 13 is arranged at the end position of the inner circumferential wall of the mounting hole, so that the radial dimension of the end of the mounting hole is larger than the radial dimension of the mounting hole, thereby playing a positioning role and facilitating the suspension main spring 14 to be placed in the mounting hole. A positioning protrusion 141 is arranged at the end of the suspension main spring 14, and the positioning protrusion 141 can cooperate with the positioning recess 13. After the suspension main spring 14 is pressed into the mounting hole, the positioning protrusion 141 can be pressed against the positioning recess 13, thereby limiting the axial displacement of the suspension main spring 14 relative to the mounting hole, thereby ensuring assembly reliability.

[0060] Among them, the positioning protrusion 141 can be constructed as a positioning step, and the positioning recess 13 can be constructed as a positioning chamfer, so that the positioning step and the positioning chamfer play a limiting role at the end of the suspension main spring 14 to achieve a stable connection between the two structural components.

[0061] In some embodiments, a radial dimension of the second suspension 121 is greater than a radial dimension of the first suspension 111 .

[0062] Specifically, Figure 4-Figure 5 As shown, the first suspension 111 is connected to the engine 2, the second suspension 121 is connected to the frame 3, and the radial dimension of the second suspension 121 is set to be larger than the radial dimension of the first suspension 111, that is, the radial dimension of the connection between the suspension rod 1 and the engine 2 is smaller, and the radial dimension of the connection between the suspension rod 1 and the frame 3 is larger. The force generated by the vibration of the engine 2 is smaller than the force generated by the external force on the vehicle. The radial dimension of the connection between the suspension rod 1 and the frame 3 is set to be larger, which can improve the structural strength of the place, improve the structural reliability, ensure the path of force transmission, and extend the service life.

[0063] Furthermore, the suspension main spring 14 and the suspension inner tube 15 of the second suspension 121 are designed with positioning grooves, and the frame 3 is provided with a positioning boss. The positioning groove and the positioning boss cooperate for positioning. When the whole vehicle is assembled, the installation angle of the suspension rod 1 can be ensured to be in the designed state, thereby reducing the adjustment time and assembly errors during assembly. When the vehicle is working, the suspension rod 1 can be prevented from twisting, thereby improving the limiting effect on the engine 2, and at the same time reducing the torsional fatigue load on the suspension main spring 14, thereby improving the working life of the suspension main spring 14.

[0064] In some embodiments, the engine suspension system further includes: a transmission 5 .

[0065] Specifically, Figure 2-Figure 3 As shown, the engine suspension system is also provided with a transmission 5, which can change the transmission ratio, realize the vehicle reverse, interrupt the power transmission and realize the neutral gear, etc. The transmission 5 is located behind the engine 2, and the transmission 5 is connected to the frame 3. The frame 3 also includes a frame crossbeam 32 extending in the transverse direction, and the transmission 5 is suspended below the frame crossbeam 32.

[0066] In some embodiments, the frame crossbeam 32 is provided with two spaced apart connecting brackets 321 , a fixing portion 51 is provided above the transmission 5 , the fixing portion 51 extends between the two connecting brackets 321 , and the fixing portion 51 is provided with a third suspension 16 fixedly connected to the connecting bracket 321 .

[0067] Specifically, Figure 2-Figure 3 As shown, a fixing portion 51 is provided above the transmission 5, and a connecting bracket 321 is provided on the frame cross beam 32 facing the transmission 5, and two connecting brackets 321 are provided, and the fixing portion 51 of the transmission 5 is placed between the two connecting brackets 321, and the third suspension 16 is pressed into the fixing portion 51, and the third suspension 16 and the fixing portion 51 are interference fit, so that after the third suspension 16 is installed on the fixing portion 51, the connection with the fixing portion 51 is tighter, thereby ensuring the reliability of the connection, and the third suspension 16 is connected to the connecting bracket 321 by fastening bolts, etc., so that the transmission 5 is detachable relative to the frame cross beam 32, which is convenient for later maintenance, etc., and saves maintenance time.

[0068] Furthermore, when the vehicle is started, the transmission 5 runs and vibrations are generated during the operation of the transmission 5. The vibrations can be transmitted to the third suspension 16 connected to the transmission 5. The third suspension 16 can weaken the vibrations, thereby allowing the third suspension 16 to play a vibration isolation role, thereby preventing the vibrations from being transmitted to the frame 3 through the frame crossbeam 32, thereby improving driving comfort, and when the vehicle is traveling, the frame 3 is subjected to an external force, which can be transmitted to the third suspension 16 connected to the frame 3. The third suspension 16 can disperse the force, thereby allowing the third suspension 16 to protect the transmission 5 and extend the service life of the transmission 5.

[0069] The present invention also provides a vehicle.

[0070] A vehicle according to an embodiment of the present invention comprises any one of the above engine suspension systems.

[0071] Specifically, Figure 1-Figure 3 As shown, the vehicle is provided with an engine 2, which can provide power for the vehicle, and the vehicle is also provided with a frame 3, which provides mounting points for internal components of the vehicle and provides support for the entire vehicle. The engine 2 is connected to the frame 3 through the engine suspension system, and the engine 2 is provided with a mounting boss 21, and the first suspension 111 is connected to the mounting boss 21 by fastening bolts, etc. At the same time, the frame 3 is provided with a mounting bracket 311, and the second suspension 121 can also be connected to the mounting bracket 311 by fastening bolts, etc., thereby connecting the engine 2 to the frame 3.

[0072] Furthermore, when the vehicle is started, the engine 2 runs and the operation of the engine 2 generates vibrations, which can be transmitted to the mounting boss 21 and then to the first suspension 111. The first suspension 111 can weaken the vibrations, and the weakened vibrations are transmitted along the rod body of the suspension rod 1 to the second suspension 121. The second suspension 121 can weaken the vibrations again, so that the suspension rod 1 plays a vibration isolation role, avoiding the vibrations from being transmitted to the mounting bracket 311 connected to the frame 3, thereby improving driving comfort, and when the vehicle is driving, the frame 3 is subjected to an external force, which can be transmitted to the mounting bracket 311 and then to the second suspension 121. The second suspension 121 can disperse the force, and the dispersed force is transmitted along the rod body of the suspension rod 1 to the first suspension 111. The first suspension 111 can disperse the force again, so that the suspension rod 1 plays a role in protecting the engine 2 and extending the service life of the engine 2.

[0073] According to the vehicle of the embodiment of the present invention, there is provided with an engine suspension system, wherein the engine suspension system connects the engine 2 with the frame 3 via a suspension rod 1. The suspension rod 1 has a simple structure and is light in weight, which can reduce the weight of the entire vehicle, improve the lightweight of the vehicle, and further improve the vehicle endurance and acceleration performance. The use of the suspension rod 1 can reduce the manufacturing cost, and has a better use effect and a wider range of applications. At the same time, the suspension rod 1 is connected to the engine 2 and the frame 3 by fastening bolts, etc., which makes disassembly simple, facilitates later maintenance, reduces maintenance costs, and saves maintenance time.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An engine suspension system, characterized in that: include: A vehicle frame, the frame comprising two frame longitudinal beams spaced apart from each other; an engine, the engine being mounted between two of the frame longitudinal beams; A suspension rod is located between the engine and the frame longitudinal beam, and two ends of the suspension rod are respectively connected to the engine and the corresponding frame longitudinal beam.

2. The engine suspension system according to claim 1, characterized in that: The front part of the engine is provided with two mounting bosses, and the sides of the two frame longitudinal beams facing each other are provided with mounting brackets, and the two mounting bosses correspond to the two mounting brackets one by one; The two suspension rods are connected between the two mounting bosses and the corresponding mounting brackets in a one-to-one correspondence.

3. The engine suspension system according to claim 2, characterized in that: At least one of the two mounting brackets is connected to a mounting rod, which is connected to the engine and spaced apart from the mounting boss.

4. The engine suspension system according to claim 1, characterized in that: A first mounting portion is provided at one end of the suspension rod, a first suspension is installed on the first mounting portion, and the first suspension is used to be connected to the engine. A second mounting portion is provided at the other end of the suspension rod, a second suspension is installed on the second mounting portion, and the second suspension is used to be connected to the frame longitudinal beam.

5. The engine suspension system according to claim 4, characterized in that: The first suspension and / or the second suspension includes a suspension main spring and a suspension inner tube. The first mounting portion and / or the second mounting portion is configured as a mounting hole. The suspension main spring is suitable for being pressed into the mounting hole. The suspension inner tube is mounted on the suspension main spring. The suspension main spring is used to be connected to the engine or the frame longitudinal beam.

6. The engine suspension system according to claim 5, characterized in that: The end of the suspension main spring is connected to a limiting pad, and the limiting pad is suitable for limiting and pressing against the end edge of the mounting hole; Wherein, both ends of the suspension main spring are connected with the limiting pads, a buffer gap is formed at the connection between the limiting pad and the suspension main spring, and the width of the buffer gap formed at one end of the suspension main spring is greater than the width of the buffer gap formed at the other end.

7. The engine suspension system according to claim 5, characterized in that: One of the outer peripheral wall of the suspension main spring and the inner peripheral wall of the mounting hole is provided with a positioning recess and the other is provided with a positioning protrusion, and the positioning recess and the positioning protrusion are limitedly matched along the axial direction of the mounting hole.

8. The engine suspension system according to claim 1, characterized in that: Also includes: The transmission is located behind the engine. The frame also includes a frame crossbeam extending in the transverse direction. The transmission is suspended below the frame crossbeam.

9. The engine suspension system according to claim 8, characterized in that: The frame crossbeam is provided with two spaced apart connecting brackets, a fixing portion is provided above the transmission, the fixing portion extends between the two connecting brackets, and the fixing portion is provided with a third suspension fixedly connected to the connecting bracket.

10. A vehicle, characterized in that: A suspension system for an engine comprising any one of claims 1-9.

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