Matching structure of suspension assembly and pull rod assembly and vehicle

Abstract

The utility model discloses a matching structure of a suspension assembly and a pull rod assembly and a vehicle, the matching structure of the suspension assembly and the pull rod assembly comprises a power assembly; the auxiliary frame assembly and the power assembly are arranged at intervals; the suspension assembly is arranged on the auxiliary frame assembly, the suspension assembly comprises a first outer pipe, a first buffer piece and a first inner pipe, the first buffer piece is clamped between the first outer pipe and the first inner pipe, and a limiting groove is formed in the first inner pipe; one end of the pull rod assembly is connected with the first inner pipe, the other end of the pull rod assembly is connected with the power assembly, a limiting step is arranged at the end, facing the first inner pipe, of the pull rod assembly, and the limiting step is in lap joint with the limiting groove. When the suspension assembly and the auxiliary frame assembly are connected, use of bolts is reduced, the anti-loosening risk is small, connection between the suspension assembly and the auxiliary frame assembly is more reliable, and the risk of failure of the suspension assembly and the power assembly can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a matching structure of a suspension assembly and a pull rod assembly and a vehicle. Background Art

[0002] Hybrid vehicles can achieve both fuel and electric drive modes at the same time. In hybrid models, the powertrain layout is mostly transverse front-wheel drive, and these powertrains mostly use pendulum-type suspension layout structures. The pendulum-type suspension system is increasingly widely used in the field of automotive suspension systems due to its simple structure, low cost, good vibration isolation effect, convenient design, and convenient vehicle design and layout. The pendulum-type suspension system uses the left or right suspension as the suspension point, and can be fixed at the top and swing at the bottom like a pendulum. For transverse models using this suspension system, the rear suspension is usually used as the main structure of the X-direction torsion limiter, which is mainly subjected to X-direction force.

[0003] However, since hybrid vehicles have both fuel and electric power, when the two powers act at the same time, their torque can reach the maximum value and is much greater than the torque of conventional power. The conventional rear suspension structure uses bolts to connect to the subframe assembly, and the bolts are mostly arranged along the Y axis or Z axis. This makes the connecting bolts subjected to shear force in the X direction easily break when the powertrain outputs a large torque, which can easily lead to overall failure of the parts. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a matching structure of a suspension assembly and a tie rod assembly, which reduces the use of bolts when connecting the suspension assembly and the subframe assembly, reduces the risk of reverse loosening, and can reduce the risk of failure of the suspension assembly and the powertrain.

[0005] According to the matching structure of the suspension assembly and the tie rod assembly of the first aspect embodiment of the utility model, it includes: a power assembly; a subframe assembly, the subframe assembly and the power assembly are arranged at an interval with each other; a suspension assembly, the suspension assembly is arranged on the subframe assembly, the suspension assembly includes: a first outer tube, a first buffer and a first inner tube, the first buffer is clamped between the first outer tube and the first inner tube, and a limiting groove is arranged on the first inner tube; a tie rod assembly, one end of the tie rod assembly is connected to the first inner tube and the other end is connected to the power assembly, and a limiting step is arranged on one end of the tie rod assembly toward the first inner tube, and the limiting step and the limiting groove overlap each other.

[0006] According to the matching structure of the suspension assembly and the tie rod assembly of the embodiment of the utility model, the use of bolts is reduced when the suspension assembly and the sub-frame assembly are connected, and the risk of reverse loosening is relatively small. The suspension assembly is pressed into the sub-frame assembly from the Z direction, and limited position structures are provided on both the front and rear sides of the suspension assembly along the X direction to buffer the larger impact borne by the suspension assembly. The torsional strength in the X direction is higher, and the connection between the suspension assembly and the sub-frame assembly is more reliable, which can reduce the risk of failure of the suspension assembly and the powertrain.

[0007] According to some embodiments of the utility model, a first fixing hole is provided on the first inner tube, a second fixing hole is provided on one end of the pull rod assembly facing the first inner tube, and the fastener passes through the first fixing hole and is connected to the second fixing hole.

[0008] According to some embodiments of the present invention, a first avoidance groove is provided on the outer periphery of the first fixing hole, and a portion of the fastener is disposed in the first avoidance groove.

[0009] According to some embodiments of the utility model, an external tube is provided on the subframe assembly, the suspension assembly is arranged inside the external tube, and corresponding second avoidance grooves are provided on the external tube and the first external tube, the height of the second avoidance groove is h1, and the distance between the bottom of the second avoidance groove and the bottom of the external tube is h2, and h1 and h2 satisfy the relationship: h1≥0.5h2.

[0010] According to some embodiments of the present invention, the outer tube protrudes relative to the external tube, and a protrusion dimension of the first outer tube relative to the first external tube is h3, and h3 satisfies the relationship: 2mm≤h3≤30mm.

[0011] According to some embodiments of the utility model, the pull rod assembly includes: a pull rod and a buffer assembly, one end of the pull rod is provided with the limiting step, the other end of the pull rod is connected to the buffer assembly, the buffer assembly is connected to the power assembly, and the axial direction of the buffer assembly and the axial direction of the suspension assembly are perpendicular to each other.

[0012] According to some embodiments of the utility model, the buffer assembly includes: a second outer tube, a second buffer member and a second inner tube, the other end of the pull rod is fixedly connected to the second outer tube, and the second buffer member is arranged between the second outer tube and the second inner tube.

[0013] According to some embodiments of the present invention, the cross-section of one end of the pull rod facing the first inner tube is square.

[0014] According to some embodiments of the present invention, the tie rod assembly and the first inner tube are an integrally formed structure.

[0015] The vehicle according to the embodiment of the second aspect of the utility model comprises: a matching structure of the suspension assembly and the tie rod assembly.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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:

[0018] Figure 1 The structure diagram of the matching structure of the suspension assembly and the tie rod assembly according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure diagram of the matching structure of the suspension assembly and the tie rod assembly according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 3 It is a structural schematic diagram of a subframe assembly according to an embodiment of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the suspension assembly and the tie rod assembly according to an embodiment of the utility model;

[0022] Figure 5 A top view of the suspension assembly and the tie rod assembly according to an embodiment of the utility model Figure 1 ;

[0023] Figure 6 is an AA cross-sectional view of the suspension assembly and the tie rod assembly according to an embodiment of the utility model;

[0024] Figure 7 The structure of the suspension assembly according to the embodiment of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 8 The structure of the suspension assembly according to the embodiment of the utility model is shown in FIG. Figure 2 ;

[0026] Fig. 9 is a top view of a suspension assembly according to an embodiment of the utility model;

[0027] Fig.10 is a BB cross-sectional view of a suspension assembly according to an embodiment of the utility model;

[0028] Fig.11 It is a schematic structural diagram of a first inner tube, a pull rod and a second outer tube according to an embodiment of the utility model;

[0029] Fig.12 A top view of the suspension assembly and the tie rod assembly according to an embodiment of the utility model Figure 2 ;

[0030] Fig.13 It is a CC cross-sectional view of the matching of the suspension assembly and the tie rod assembly according to an embodiment of the utility model;

[0031] Fig.14 It is a structural schematic diagram of a tie rod assembly according to an embodiment of the utility model.

[0032] Reference numerals:

[0033] 100. The matching structure of the suspension assembly and the tie rod assembly;

[0034] 10. Subframe assembly; 11. External pipe; 111. Second avoidance groove;

[0035] 20. Suspension assembly; 21. First outer tube; 22. First buffer; 23. First inner tube; 231. Position limiting groove; 232. First fixing hole; 233. First avoidance groove; 24. Fastener;

[0036] 30. Tie rod assembly; 31. Tie rod; 311. Position limiting step; 312. Second fixing hole; 32. Buffer assembly; 321. Second outer tube; 322. Second buffer member; 323. Second inner tube. DETAILED DESCRIPTION

[0037] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0038] Reference below Figure 1-Figure 14 A matching structure 100 of a suspension assembly and a tie rod assembly according to an embodiment of the utility model is described, and the utility model also provides a vehicle.

[0039] Reference Figure 1-10 and Fig.14 As shown, the matching structure 100 of the suspension assembly and the tie rod assembly of the embodiment of the utility model includes: a power assembly, a subframe assembly 10 , a suspension assembly 20 and a tie rod assembly 30 .

[0040] The subframe assembly 10 and the powertrain are spaced apart from each other. The powertrain includes an engine, a transmission, a drive shaft, wheels, etc., and is responsible for generating and transmitting driving force to enable the vehicle to travel. The subframe assembly 10 is connected to the vehicle body to stabilize and enhance the overall structural strength of the vehicle.

[0041] The suspension assembly 20 is arranged on the sub-frame assembly 10, and includes: a first outer tube 21, a first buffer 22 and a first inner tube 23. The first buffer 22 is sandwiched between the first outer tube 21 and the first inner tube 23, and a limiting groove 231 is arranged on the first inner tube 23. The first outer tube 21 and the first inner tube 23 can be made of metal, and the first buffer 22 can be made of rubber. After the rubber is vulcanized, it is connected with the first outer tube 21 and the first inner tube 23, has higher strength, and can withstand greater mechanical stress and load.

[0042] One end of the tie rod assembly 30 is connected to the first inner tube 23 and the other end is connected to the power assembly. A limiting step 311 is provided on one end of the tie rod assembly 30 facing the first inner tube 23, and the limiting step 311 and the limiting groove 231 overlap each other. Since the tie rod assembly 30 is respectively connected to the first inner tube 23 and the power assembly, the tie rod assembly 30 is connected to the suspension assembly 20, and the power assembly is connected to the tie rod 31, the power assembly and the sub-frame assembly 10 can be connected, and the driving force of the power assembly can be transmitted to the sub-frame assembly 10 through the tie rod assembly 30 and the suspension assembly 20, wherein the first buffer 22 uses a rubber material with excellent elasticity and damping characteristics, which can effectively absorb and buffer the vibration of the power assembly and reduce its transmission to the vehicle body.

[0043] Among them, a limiting step 311 is set at one end of the tie rod assembly 30 facing the first inner tube 23, and a limiting groove 231 is set on the first inner tube 23. The limiting step 311 and the limiting groove 231 overlap each other, which can fix the relative position of the first inner tube 23 and the tie rod assembly 30, and prevent the tie rod assembly 30 from moving relative to the suspension assembly 20, which affects the effect of power transmission.

[0044] Furthermore, when the suspension assembly 20 is installed on the sub-frame assembly 10, the use of bolts is reduced, the risk of reverse loosening is low, the suspension assembly 20 is pressed into the sub-frame assembly 10 from the Z direction, and the front and rear sides of the suspension assembly 20 along the X direction are provided with limited position structures to buffer the large impact borne by the suspension assembly 20, the torsional strength in the X direction is higher, and the connection between the suspension assembly 20 and the sub-frame assembly 10 is more reliable, so that the power of the powertrain can be stably transmitted to the sub-frame assembly 10, improving the reliability of the vehicle. In addition, the use of bolts is reduced, and there is no need to tighten the bolt torque, which reduces the burden on workers and equipment capital investment, and improves production and assembly efficiency.

[0045] As a result, the use of bolts is reduced when the suspension assembly 20 and the sub-frame assembly 10 are connected, and the risk of reverse loosening is reduced. The suspension assembly 20 is pressed into the sub-frame assembly 10 from the Z direction, and the suspension assembly 20 is provided with a limiting structure on both the front and rear sides along the X direction to buffer the large impact borne by the suspension assembly 20. The torsional strength in the X direction is higher, and the connection between the suspension assembly 20 and the sub-frame assembly 10 is more reliable, which can reduce the risk of failure of the suspension assembly 20 and the powertrain.

[0046] Reference Figure 4-10 and Fig.14 As shown, the first inner tube 23 is provided with a first fixing hole 232, and the end of the tie rod assembly 30 facing the first inner tube 23 is provided with a second fixing hole 312, and the fastener 24 passes through the first fixing hole 232 and is connected with the second fixing hole 312. That is to say, in some embodiments, the suspension assembly 20 and the tie rod assembly 30 can be connected by the fastener 24, and the fastener 24 passes through the first fixing hole 232 on the first inner tube 23 and the second fixing hole 312 of the tie rod assembly 30 to fix the suspension assembly 20 and the tie rod assembly 30. The fastener 24 has high strength and fatigue resistance, and is reliable for long-term use. The use of the fastener 24 is convenient for installation and disassembly, and is convenient for regular inspection, maintenance and replacement of parts. It is low in price and effectively reduces maintenance costs.

[0047] The fastener 24 may be a bolt.

[0048] In addition, since the bolts are arranged in the X direction, they only bear the X-direction torque output by the powertrain and do not bear the shear force in the Y or Z direction. The bolts are not prone to breakage and failure, further improving the reliability of the suspension assembly 20.

[0049] Reference Figure 4-10 As shown, the outer periphery of the first fixing hole 232 is provided with a first avoidance groove 233, and a portion of the fastener 24 is provided in the first avoidance groove 233. The first avoidance groove 233 can provide sufficient operating space for the installation operation of the fastener 24. In this embodiment, the interference between the bolt head and other surrounding structures can be avoided, thereby improving the convenience and efficiency of assembly. In addition, the avoidance groove can limit the movement of the fastener 24 to prevent it from sliding or rotating during the installation process. A portion of the fastener 24 can also be hidden in the avoidance groove to reduce the possibility of accidental collision or scratching.

[0050] In addition, a third avoidance groove corresponding to the first avoidance groove 233 is provided on the external tube 11 and the first outer tube 21, and the projection of the third avoidance groove on the suspension assembly 20 covers the first avoidance groove 233. In this way, providing the third avoidance groove on the external tube 11 and the first outer tube 21 can facilitate the connection between the fastener and the pull rod assembly 30, that is, the third avoidance groove can play a role of avoidance.

[0051] Reference Figure 3 , Figure 6 and Fig.10 As shown, the sub-frame assembly 10 is provided with an external tube 11, the suspension assembly 20 is arranged in the external tube 11, and the external tube 11 and the first external tube 21 are provided with corresponding second avoidance grooves 111, the height of the second avoidance groove 111 is h1, and the distance between the bottom of the second avoidance groove 111 and the bottom of the external tube 11 is h2, and h1 and h2 satisfy the relationship: h1≥0.5h2. Specifically, the sub-frame assembly 10 is provided with an external tube 11, and the connection method of the external tube 11 and the sub-frame assembly 10 can be welding. The suspension assembly 20 is pressed into the external tube 11 from the Z direction, and is not connected by bolts, so the risk of reverse loosening is relatively small.

[0052] The first outer tube 21 and the external tube 11 are provided with second avoidance grooves 111 corresponding to the positions, and the second avoidance grooves 111 are used to avoid the pull rod 31, so as to facilitate the connection between the pull rod 31 and the limiting groove 231. In this embodiment, the second avoidance groove 111 is located at the upper ends of the first outer tube 21 and the external tube 11, and the suspension assembly 20 is pressed into the external tube 11 from top to bottom. In other embodiments, the second avoidance groove 111 can also be located at the lower ends of the first outer tube 21 and the external tube 11, and the suspension assembly 20 is pressed into the external tube 11 from bottom to top.

[0053] In order to leave enough space for the pull rod 31 to escape, the height of the second escape groove 111 should be no less than half of the distance between the bottom of the second escape groove 111 and the bottom of the external tube 11 .

[0054] Reference Figure 3 and Figure 6 As shown, the first outer tube 21 protrudes relative to the external tube 11, and the protrusion dimension of the first outer tube 21 relative to the external tube 11 is h3, and h3 satisfies the relationship: 2mm≤h3≤30mm. When the first buffer 22 is damaged, the suspension assembly 20 can be pressed out of the subframe assembly 10 by pressing the bottom position of the first outer tube 21 for repair or replacement of parts. Therefore, the first outer tube 21 needs to protrude relative to the external tube 11, and the protrusion is not less than 2mm and not more than 30mm. If the protrusion is less than 2mm, the suspension assembly 20 may not be pressed out, and if the protrusion is too much, it is easy to interfere with other structures.

[0055] Reference Fig.14As shown, the tie rod assembly 30 includes: a tie rod 31 and a buffer assembly 32. A limiting step 311 is provided at one end of the tie rod 31. The other end of the tie rod 31 is connected to the buffer assembly 32. The buffer assembly 32 is connected to the power assembly. The axial direction of the buffer assembly 32 is perpendicular to the axial direction of the suspension assembly 20. In some embodiments, the cross section of the tie rod 31 can be circular. The circular structure is easy to roll. When the tie rod 31 is connected to the limiting groove 231, the limiting step 311 limits the rotation of the tie rod 31 relative to the limiting groove 231, which can improve the reliability of the tie rod assembly 30 and the suspension assembly 20.

[0056] The axial direction of the buffer component 32 and the axial direction of the suspension assembly 20 are perpendicular to each other, that is, the axial direction of the buffer component 32 is the Y direction, the axial direction of the suspension assembly 20 is the Z direction, and the plane where the axial direction of the buffer component 32 is located and the plane where the axial direction of the suspension assembly 20 is located are perpendicular to each other.

[0057] Reference Figure 4 , Figure 6 and Fig.14 As shown, the buffer assembly 32 includes: a second outer tube 321, a second buffer member 322 and a second inner tube 323. The other end of the pull rod 31 is fixedly connected to the second outer tube 321, and the second buffer member 322 is disposed between the second outer tube 321 and the second inner tube 323. The second outer tube 321 and the second inner tube 323 may be metal structures, the second buffer member 322 may be a rubber structure, the second outer tube 321, the second inner tube 323 and the second buffer member 322 may all be bushing structures, the buffer assembly 32 is used to be connected to the powertrain, and the second buffer member 322 may absorb and buffer the vibration of the powertrain to reduce its transmission to the vehicle body.

[0058] Furthermore, the cross section of the end of the pull rod 31 facing the first inner tube 23 can be square. In this way, the cross section of the pull rod 31 is the same as the cross section of the limiting groove 231, which can improve the matching stability of the pull rod 31 and the groove, and the square structure is less likely to roll, which can further prevent the pull rod 31 from rotating.

[0059] Reference Figure 11-13 As shown, in some embodiments, the tie rod assembly 30 and the first inner tube 23 can also be an integrally formed structure. The integrally formed tie rod assembly 30 and the first inner tube 23 have higher strength and rigidity, and are free of traditional joints and connection points, which can reduce stress concentration, avoid fracture or fatigue at these locations, eliminate the use of fasteners such as bolts, further reduce structural weight, save installation labor costs, and improve assembly efficiency.

[0060] The vehicle according to the embodiment of the second aspect of the utility model includes: a matching structure 100 of a suspension assembly and a tie rod assembly.

[0061] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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. A matching structure of a suspension assembly and a tie rod assembly, characterized in that: include: Powertrain; A subframe assembly, wherein the subframe assembly and the power assembly are spaced apart from each other; A suspension assembly, the suspension assembly is arranged on the sub-frame assembly, the suspension assembly comprises: a first outer tube, a first buffer and a first inner tube, the first buffer is clamped between the first outer tube and the first inner tube, and a limiting groove is arranged on the first inner tube; A tie rod assembly, one end of which is connected to the first inner tube and the other end of which is connected to the power assembly, a limiting step is provided on one end of the tie rod assembly facing the first inner tube, and the limiting step and the limiting groove overlap each other.

2. The matching structure of the suspension assembly and the tie rod assembly according to claim 1, characterized in that: The first inner tube is provided with a first fixing hole, and the end of the pull rod assembly facing the first inner tube is provided with a second fixing hole. The fastener passes through the first fixing hole and is connected with the second fixing hole.

3. The matching structure of the suspension assembly and the tie rod assembly according to claim 2, characterized in that: A first avoidance groove is arranged on the outer periphery of the first fixing hole, and a portion of the fastener is arranged in the first avoidance groove.

4. The matching structure of the suspension assembly and the tie rod assembly according to claim 1, characterized in that: An external tube is provided on the subframe assembly, the suspension assembly is arranged inside the external tube, and corresponding second avoidance grooves are provided on the external tube and the first external tube, the height of the second avoidance groove is h1, and the distance between the bottom of the second avoidance groove and the bottom of the external tube is h2, and h1 and h2 satisfy the relationship: h1≥0.5h2.

5. The matching structure of the suspension assembly and the tie rod assembly according to claim 4, characterized in that: The first outer tube protrudes relative to the external tube, and a protrusion dimension of the first outer tube relative to the external tube is h3, and h3 satisfies the relationship: 2mm≤h3≤30mm.

6. The matching structure of the suspension assembly and the tie rod assembly according to claim 1, characterized in that: The tie rod assembly includes: a tie rod and a buffer assembly, one end of the tie rod is provided with the limiting step, the other end of the tie rod is connected to the buffer assembly, the buffer assembly is connected to the power assembly, and the axial direction of the buffer assembly and the axial direction of the suspension assembly are perpendicular to each other.

7. The matching structure of the suspension assembly and the tie rod assembly according to claim 6, characterized in that: The buffer assembly includes: a second outer tube, a second buffer member and a second inner tube. The other end of the pull rod is fixedly connected to the second outer tube, and the second buffer member is arranged between the second outer tube and the second inner tube.

8. The matching structure of the suspension assembly and the tie rod assembly according to claim 6, characterized in that: The cross section of one end of the pull rod facing the first inner tube is square.

9. The matching structure of the suspension assembly and the tie rod assembly according to claim 1, characterized in that: The tie rod assembly and the first inner tube are an integrally formed structure.

10. A vehicle, characterized in that: include: The matching structure of the suspension assembly and the tie rod assembly according to any one of claims 1 to 9.

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