New energy automobile swing arm assembly and bushing thereof

Abstract

The invention belongs to the field of new energy automobiles, and particularly relates to a new energy automobile swing arm assembly and a bush thereof, the new energy automobile swing arm assembly comprises a swing arm body, a connecting assembly is arranged on the side face of the swing arm body, and a bush assembly is arranged at the top of the connecting assembly; through the structural design of the connecting assembly, concentrated stress at the position of the main arm is shared through the main arm connecting structure, connection with other parts on a frame is facilitated, the strength of the connecting position is improved through the mounting rod, connection is more stable, the bearing capacity is improved, and the stable steering function of the swing arm body is achieved; the problem that a vehicle is unstable in the moving process is solved, the working efficiency is improved, the excellent bearing capacity and connecting strength are achieved, assembling is easy, the safety of the vehicle is improved, the service life of the swing arm is prolonged, the structural design of the lining assembly is arranged, the first clamping base and the second clamping base are twisted at small angles, and therefore the stability of the vehicle is improved. Effective buffering is carried out in the mounting hole, the problem of convenient assembly is solved, and practicability and adaptability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy vehicles, and particularly relates to a new energy vehicle swing arm assembly and a bushing thereof. BACKGROUND

[0002] The new energy vehicle refers to an automobile adopting unconventional vehicle fuel as a power source (or using conventional vehicle fuel, adopting a new vehicle power device), and combining advanced technologies of vehicle power control and driving to form an automobile with advanced technical principles and new technologies and structures. The new energy vehicle is also called a substitute fuel automobile, and includes a pure electric vehicle, a fuel cell electric vehicle and the like, all of which use non-petroleum fuel, and also includes a hybrid electric vehicle, an ethanol gasoline automobile and the like, which partially use non-petroleum fuel. The new energy vehicle utilizes a storage battery as a storage power source, provides electric energy to an electric motor through the battery, drives the electric motor to rotate, and thus pushes the vehicle to travel. The rechargeable battery of the pure electric vehicle mainly includes a lead-acid battery, a nickel-cadmium battery, a nickel-hydrogen battery and a lithium ion battery, and the like, which can provide power for the pure electric vehicle. At the same time, the pure electric vehicle also stores electric energy through the battery, drives the motor to rotate, and thus enables the vehicle to travel normally. All existing new energy vehicles are included in this concept, and are specifically divided into six categories: a hybrid electric vehicle, a pure electric vehicle, a fuel cell vehicle, an alcohol ether fuel vehicle, a natural gas vehicle and the like. No matter which kind of vehicle, the vehicle suspension system is an important component of the vehicle, and is a general term of all force transmission connecting devices between a vehicle frame and a vehicle bridge or a vehicle wheel. The lower swing arm is a guiding and force transmission element in the vehicle suspension system, and mainly functions to support a vehicle body and a shock absorber, and to buffer vibration in the vehicle travel process.

[0003] The prior art, such as CN106274326A, a front lower swing arm assembly of an automobile, sets a curved surface in a lateral direction of the swing arm, which is composed of a plane and a circular arc surface. The projection corresponding to the plane is a first straight line, and the projection corresponding to the circular arc surface is a circular arc line. The plane and the circular arc surface are sequentially distributed from a ball head assembly to a front bushing in a longitudinal direction of the swing arm. A curved surface is set in the longitudinal direction of the swing arm, which is composed of a slope, a first circular arc surface, a second circular arc surface and a third circular arc surface. The projection corresponding to the slope is an inclined line, the projection corresponding to the first circular arc surface is a first circular arc line, the projection corresponding to the second circular arc surface is a second circular arc line, and the projection corresponding to the third circular arc surface is a third circular arc line. The lateral curved surface and the longitudinal curved surface combine to be a specific shape of the entire swing arm. Meanwhile, the dimensions of various curved surfaces are ensured to be within a certain range, the lateral arc change between the ball head pin installation position and the front bushing installation position is increased, and the longitudinal arc is increased. The advantages are that the bearing capacity requirement after the material change is met, the transmission mechanism such as a transmission shaft is avoided, the weight is light, the cost is low, and the universality is good.

[0004] However, the device still has some deficiencies in use, the swing arm assembly is set to be high in front and low in back, in the movement process of the vehicle, the outer end of the swing arm moves up and down with the up and down movement of the wheel, the inner end of the swing arm rotates around the swing arm shaft, the rear inclination angle changes greatly, the automobile swing arm is the guide and support of the suspension, if deformation occurs, the wheel positioning will be affected, the driving stability will be reduced, the rubber buffer part of the device and the automobile swing arm are integrally connected by using glue, the internal rubber buffer part is easy to tear, the buffering performance of the bushing is greatly reduced, the overall use effect of the swing arm is affected, and the disassembly and replacement between the bushing and the swing arm are not convenient.

[0005] Therefore, a new energy automobile swing arm assembly and its bushing are provided for the above problems. SUMMARY

[0006] In order to make up for the deficiencies of the prior art, the swing arm assembly is set to be high in front and low in back, in the movement process of the vehicle, the outer end of the swing arm moves up and down with the up and down movement of the wheel, the inner end of the swing arm rotates around the swing arm shaft, the rear inclination angle changes greatly, the automobile swing arm is the guide and support of the suspension, if deformation occurs, the wheel positioning will be affected, the driving stability will be reduced, the rubber buffer part of the device and the automobile swing arm are integrally connected by using glue, the internal rubber buffer part is easy to tear, the buffering performance of the bushing is greatly reduced, the overall use effect of the swing arm is affected, and the disassembly and replacement between the bushing and the swing arm are not convenient, the present application provides a new energy automobile swing arm assembly and its bushing.

[0007] The technical scheme adopted by the present application to solve the technical problems is: a new energy automobile swing arm assembly and its bushing, comprising a swing arm body, a connecting assembly is arranged on the side surface of the swing arm body, and a bushing assembly is arranged on the top of the connecting assembly. The connecting assembly comprises a connecting main arm arranged on the side surface of the swing arm body, the connecting main arm is fixedly connected with the swing arm body, a fixed seat is fixedly connected on the side surface of the connecting main arm, an installation rod is arranged in the fixed seat, a rotating rod is arranged on the side surface of the fixed seat, an installation support is threadedly connected to the bottom of the connecting main arm through a connecting nut, a connecting side arm is fixedly connected on the side surface of the swing arm body, and a corrosion-resistant coating is coated on the outer surfaces of the swing arm body and the connecting main arm.

[0008] Preferably, the rotating rod penetrates through the fixed seat and extends into the rotating rod, the fixed seat is hinged with the installation rod through the rotating rod, a rectangular block is fixedly connected on the top of the connecting main arm, a connecting screw rod is fixedly connected on the top of the rectangular block, the connecting screw rod is fixedly connected with the rectangular block through a locking nut, the connecting screw rod is opposite to the installation support in position, and the materials of the connecting main arm and the swing arm body are both alloy steel.

[0009] Preferably, the side surface of the mounting bracket is fixedly connected with a connecting rod and a threaded rod respectively, the connecting rod and the threaded rod are opposite in position, the outer surface of the connecting main arm is fixedly connected with a protective sleeve, the material of the protective sleeve is a polyester fiber compound, and the material of the connecting rod is the same as that of the mounting rod.

[0010] Preferably, one end of the connecting side arm is fixedly connected with the connecting main arm, the other end of the connecting side arm is fixedly connected with a fixed cylinder, the side surface of the fixed cylinder is provided with a connecting threaded hole, the connecting side arm is located on the side surface of the connecting main arm, and the material of the connecting side arm is alloy steel.

[0011] Preferably, the side surface of the connecting side arm is fixedly connected with an auxiliary fixing plate, the end of the auxiliary fixing plate is fixedly connected with the connecting main arm, the auxiliary fixing plate is located on the side surface of the fixed seat, and the material of the auxiliary fixing plate is stainless steel.

[0012] The new energy automobile swing arm bushing comprises a mounting seat body. Preferably, the mounting seat body is located on the top of the connecting screw rod, the side surface of the mounting seat body is provided with a mounting hole, the two sides of the mounting seat body are respectively provided with a first clamping seat and a second clamping seat, the first clamping seat and the second clamping seat are opposite in position, the mounting seat is threadedly connected with the connecting screw rod, and the materials of the first clamping seat and the second clamping seat are both rubber vulcanization bodies.

[0013] Preferably, the side surface of the first clamping seat is fixedly connected with a connecting pipe, the side surface of the second clamping seat is fixedly connected with a connecting cylinder, and the connecting pipe extends into the connecting cylinder and is threadedly connected with the connecting cylinder.

[0014] Preferably, the connecting cylinder and the connecting cylinder are both located in the mounting hole, the outer surface of the connecting cylinder is sleeved with an outer sleeve frame, the outer sleeve frame is clamped with the mounting hole, and the material of the outer sleeve frame is synthetic rubber.

[0015] Preferably, the side surface of the first clamping seat and the second clamping seat is respectively provided with a connecting hole, the two connecting holes are opposite in position, and the diameters of the two connecting holes are smaller than that of the mounting hole.

[0016] Preferably, the heights of the first clamping seat and the second clamping seat are the same, the inner surface of the outer sleeve frame is fixedly connected with a rubber strip, and the two sides of the outer sleeve frame are respectively abutted with the first clamping seat and the second clamping seat.

[0017] The present application has the advantages that: 1. The present application has greater freedom, good maneuverability and steering smoothness by setting the structure design of the connecting assembly, simple structure, convenient processing, greater overall structural strength, using the structure of the connecting main arm to share the concentrated stress at the main arm, convenient connection with the remaining parts on the frame, the installation rod improves the strength of the connection, makes the connection more stable, improves the carrying capacity, realizes the function of smooth steering of the swing arm body, solves the problem of instability of the vehicle during movement, improves the working efficiency, at the same time, the device has simple structure, convenient processing, excellent carrying capacity and connection strength, easy assembly, improves the safety of the vehicle, prolongs the service life of the swing arm; 2. The present application has greater freedom, good maneuverability and steering smoothness by setting the structure design of the connecting assembly, simple structure, convenient processing, greater overall structural strength, using the structure of the connecting main arm to share the concentrated stress at the main arm, convenient connection with the remaining parts on the frame, the installation rod improves the strength of the connection, makes the connection more stable, improves the carrying capacity, realizes the function of smooth steering of the swing arm body, solves the problem of instability of the vehicle during movement, improves the working efficiency, at the same time, the device has simple structure, convenient processing, excellent carrying capacity and connection strength, easy assembly, improves the safety of the vehicle, prolongs the service life of the swing arm; DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 The overall structure of the present application is shown in the figure; Figure 2 The connecting assembly structure of the present application is shown in the figure; Figure 3 The side structure of the connecting main arm of the present application is shown in the figure; Figure 4 The bushing assembly structure of the present application is shown in the figure; Figure 5 The first and second clamping seat structure of the present application is shown in the figure Figure 6 The first and second clamping seat disassembly structure of the present application is shown in the figure.

[0020] In the figure: 1, swing arm body; 2, connecting assembly; 201, connecting main arm; 202, rectangular block; 203, connecting screw; 204, fixed seat; 205, rotating rod; 206, mounting rod; 207, protective sleeve; 208, mounting bracket; 209, connecting nut; 210, connecting rod; 211, threaded rod; 3, bushing assembly; 301, mounting seat body; 302, mounting hole; 303, first clamping seat; 304, second clamping seat; 305, connecting hole; 306, outer sleeve frame; 307, connecting cylinder; 308, connecting pipe; 4, connecting side arm; 5, auxiliary fixing plate; 6, fixed cylinder; 7, connecting threaded hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] The following will be described in detail with reference to the drawings in the embodiments of the present application. Figures 1-6 The present application will be described in further detail, The embodiments of the present application disclose a new energy automobile swing arm assembly and a bushing thereof. Referring to Figure 1 and Figure 6 , a new energy automobile swing arm assembly and a bushing thereof, comprising a swing arm body 1; the side surface of the swing arm body 1 is provided with a connecting assembly 2, and the top of the connecting assembly 2 is provided with a bushing assembly 3. The connecting assembly 2 comprises a connecting main arm 201 arranged on the side surface of the swing arm body 1, the connecting main arm 201 is fixedly connected with the swing arm body 1, the side surface of the connecting main arm 201 is fixedly connected with a fixed seat 204, the inner part of the fixed seat 204 is provided with a mounting rod 206, the side surface of the fixed seat 204 is provided with a rotating rod 205, the bottom of the connecting main arm 201 is threadedly connected with a mounting bracket 208 through a connecting nut 209, the side surface of the swing arm body 1 is fixedly connected with a connecting side arm 4, and the outer surfaces of the swing arm body 1 and the connecting main arm 201 are respectively coated with an anti-corrosion coating.

[0023] Referring to Figure 1 , Figure 2 and Figure 3The rotating rod 205 extends through the fixing base 204 and extends into the rotating rod 205, the fixing base 204 is hinged with the mounting rod 206 through the rotating rod 205, the top of the connecting main arm 201 is fixedly connected with the rectangular block 202, the top of the rectangular block 202 is fixedly connected with the connecting screw rod 203, the connecting screw rod 203 is fixedly connected with the rectangular block 202 through the locking nut, the connecting screw rod 203 is opposite to the mounting bracket 208 in position, the material of the connecting main arm 201 and the swing arm body 1 is alloy steel, the structure of the connecting main arm 201 is used to share the concentrated stress at the swing arm body 1, the remaining parts on the vehicle frame are conveniently connected, the mounting rod 206 improves the strength of the connecting part, the connection is more stable, the carrying capacity is improved, the swing arm body 1 is coated with an anti-corrosion coating, and the anti-corrosion coating prolongs the service life of the swing arm body 1; The side surface of the mounting bracket 208 is fixedly connected with the connecting rod 210 and the threaded rod 211 respectively, the connecting rod 210 and the threaded rod 211 are opposite in position, the outer surface of the connecting main arm 201 is fixedly connected with the protective sleeve 207, the outer surface of the connecting main arm 201 is fixedly connected with the protective sleeve 207, the material of the protective sleeve 207 is a polyester fiber compound, the material of the connecting rod 210 is the same as that of the mounting rod 206, the protective sleeve 207 can protect the connecting main arm 201 and reduce the corrosion of the connecting main arm 201 by the external environment; One end of the connecting side arm 4 is fixedly connected with the connecting main arm 201, the other end of the connecting side arm 4 is fixedly connected with the fixing cylinder 6, the side surface of the fixing cylinder 6 is provided with a connecting threaded hole 7, the connecting side arm 4 is located on the side surface of the connecting main arm 201, and the material of the connecting side arm 4 is alloy steel; the connecting side arm 4 improves the stability of the swing arm body 1 and improves the practicability; The side surface of the connecting side arm 4 is fixedly connected with the auxiliary fixing plate 5, the tail end of the auxiliary fixing plate 5 is fixedly connected with the connecting main arm 201, the auxiliary fixing plate 5 is located on the side surface of the fixing base 204, the material of the auxiliary fixing plate 5 is stainless steel, the auxiliary fixing plate 5 improves the stability between the connecting main arm 201 and the connecting side arm 4 and improves the stability during work; Refer to Figure 1 , Figure 4 , Figure 5 and Figure 6The utility model provides a new energy automobile swing arm bushing, including installation seat body 301, installation seat body 301 is located the top of connecting screw rod 203, the side surface of installation seat body 301 is seted up with installation hole 302, and the both sides of installation seat body 301 are provided with first clamping seat 303 and second clamping seat 304 respectively, first clamping seat 303 and second clamping seat 304 are opposite in position, and installation seat 301 is connected with connecting screw rod 203 in screw thread, and the material quality of first clamping seat 303 and second clamping seat 304 is rubber vulcanization body, and first clamping seat 303 and second clamping seat 304 are pressure die formed through vulcanization injection glue process, reliable connection has good shock absorbing effect, and first clamping seat 303 and second clamping seat 304 are twisted with slight angle respectively, realize the buffer between first clamping seat 303, second clamping seat 304 and outer sleeve frame 306, further improve the buffer performance of whole bushing; The side surface of first clamping seat 303 is fixedly connected with connecting pipe 308, the side surface of second clamping seat 304 is fixedly connected with connecting cylinder 307, and connecting pipe 308 extends into connecting cylinder 307 and is connected with connecting cylinder 307 in screw thread; Connecting cylinder 307 and connecting cylinder 307 are located in installation hole 302, and the outer surface of connecting cylinder 307 is sleeved with outer sleeve frame 306, and outer sleeve frame 306 is clamped with installation hole 302, and the material quality of outer sleeve frame 306 is synthetic rubber, and through the covering of outer sleeve frame 306 to connecting cylinder 307, further when being extruded, prevent the problem of deformation of bushing due to impact, improve practicality and adaptability; The side surface of first clamping seat 303 and second clamping seat 304 is seted up with connecting hole 305 respectively, and the two connecting holes 305 are opposite in position, and the diameter of two connecting holes 305 is less than the diameter of installation hole 302, has excellent bearing capacity and connecting strength, and is easy to assemble; The height of first clamping seat 303 and second clamping seat 304 is same, and the inner surface of outer sleeve frame 306 is fixedly connected with rubber strip, and the both sides of outer sleeve frame 306 are abutted with first clamping seat 303 and second clamping seat 304 respectively, and the rubber strip in outer sleeve frame 306 further improves the buffer performance of whole bushing; Working principle: when using the device, first check if the device is normal use, the device has a large degree of freedom, while having a good steering and turning smoothness, simple structure, easy processing, the overall structure strength is larger, when the car drives to the concave-convex road surface, the arm body 1 and the car connecting frame component appear a certain angle of torsion, thereby causing a certain torsion, using the structure of the connecting main arm 201 to share the concentrated stress at the arm body 1, convenient and the rest of the parts on the frame are connected, the installation rod 206 improves the strength of the connection, makes the connection more stable, improves the carrying capacity, at the same time, the device solves the problem of instability of the vehicle in the process of movement, improves the working efficiency, has excellent carrying capacity and connection strength, easy to assemble, improves the safety of the vehicle, prolongs the service life of the swing arm, the first clamp seat 303 and the second clamp seat 304 are pressure cast by vulcanization injection process, the connection is reliable, has good damping effect, the first clamp seat 303 and the second clamp seat 304 are twisted at a small angle respectively, and the connecting cylinder 307 is covered by the outer sleeve frame 306, and then is extruded when the installation hole 302 is effectively buffered, the buffer between the first clamp seat 303, the second clamp seat 304 and the outer sleeve frame 306 is realized, the buffer performance of the whole bushing is further improved, the assembly is convenient, and the problem of preventing the bushing from deforming due to impact is solved, the practicality and adaptability are improved, in the process of vehicle movement, the outer end of the swing arm moves up and down with the up and down movement of the wheel, the inner end of the swing arm rotates around the swing arm shaft, the back rake changes greatly, the automobile swing arm is the guide and support of the suspension, if deformation occurs, the wheel positioning will be affected, and the driving stability will be reduced, the device improves the above problems, and the outer surface of the swing arm body 1 is coated with an anti-corrosion coating, which prolongs the service life of the upper swing arm body 1.

[0024] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A new energy vehicle swing arm assembly, comprising a swing arm body (1); characterized in that: A connecting component (2) is provided on the side of the swing arm body (1), and a bushing component (3) is provided on the top of the connecting component (2). The connecting assembly (2) includes a connecting main arm (201) provided on the side of the swing arm body (1), the connecting main arm (201) being fixedly connected to the swing arm body (1), a fixing seat (204) being fixedly connected to the side of the connecting main arm (201), an installation rod (206) being provided inside the fixing seat (204), a rotating rod (205) being provided on the side of the fixing seat (204), an installation bracket (208) being threadedly connected to the bottom of the connecting main arm (201) through a connecting nut (209), a connecting side arm (4) being fixedly connected to the side of the swing arm body (1), and the outer surfaces of the swing arm body (1) and the connecting main arm (201) being coated with an anti-corrosion coating.

2. The new energy vehicle swing arm assembly according to claim 1, characterized in that: The rotating rod (205) passes through the fixed seat (204) and extends into the rotating rod (205). The fixed seat (204) is hinged to the mounting rod (206) through the rotating rod (205). A rectangular block (202) is fixedly connected to the top of the connecting main arm (201). A connecting screw (203) is fixedly connected to the top of the rectangular block (202). The connecting screw (203) is fixedly connected to the rectangular block (202) through a locking nut. The connecting screw (203) is positioned opposite to the mounting bracket (208). The connecting main arm (201) and the swing arm body (1) are both made of alloy steel.

3. The new energy vehicle swing arm assembly according to claim 2, characterized in that: The mounting bracket (208) is fixedly connected to a connecting rod (210) and a threaded rod (211) on its side. The connecting rod (210) and the threaded rod (211) are positioned opposite each other. A protective sleeve (207) is fixedly connected to the outer surface of the connecting main arm (201). The protective sleeve (207) is made of polyester fiber compound. The connecting rod (210) is made of the same material as the mounting rod (206).

4. The new energy vehicle swing arm assembly according to claim 1, characterized in that: One end of the connecting side arm (4) is fixedly connected to the connecting main arm (201), and the other end of the connecting side arm (4) is fixedly connected to a fixing cylinder (6). The side of the fixing cylinder (6) is provided with a connecting thread hole (7). The connecting side arm (4) is located on the side of the connecting main arm (201), and the material of the connecting side arm (4) is alloy steel.

5. A new energy vehicle swing arm assembly according to claim 1, characterized in that: An auxiliary fixing plate (5) is fixedly connected to the side of the connecting side arm (4). The end of the auxiliary fixing plate (5) is fixedly connected to the connecting main arm (201). The auxiliary fixing plate (5) is located on the side of the fixing seat (204). The material of the auxiliary fixing plate (5) is stainless steel.

6. A new energy vehicle swing arm bushing, applicable to a new energy vehicle swing arm assembly as described in any one of claims 1-5, comprising a mounting base body (301), characterized in that: The mounting base body (301) is located at the top of the connecting screw (203). The mounting base body (301) has a mounting hole (302) on its side. The mounting base body (301) has a first clamp (303) and a second clamp (304) on its two sides respectively. The first clamp (303) and the second clamp (304) are opposite to each other. The mounting base (301) is threadedly connected to the connecting screw (203). The first clamp (303) and the second clamp (304) are both made of rubber vulcanizate.

7. A new energy vehicle swing arm bushing according to claim 6, characterized in that: A connecting pipe (308) is fixedly connected to the side of the first clamp (303), and a connecting cylinder (307) is fixedly connected to the side of the second clamp (304). The connecting pipe (308) extends into the connecting cylinder (307) and is threadedly connected to the connecting cylinder (307).

8. A new energy vehicle swing arm bushing according to claim 7, characterized in that: Both the connecting cylinder (307) and the connecting cylinder (307) are located inside the mounting hole (302). The outer surface of the connecting cylinder (307) is fitted with an outer frame (306), which is engaged with the mounting hole (302). The material of the outer frame (306) is synthetic rubber.

9. A new energy vehicle swing arm bushing according to claim 6, characterized in that: The first clamp (303) and the second clamp (304) are respectively provided with connecting holes (305) on their sides. The two connecting holes (305) are positioned opposite each other, and the diameter of the two connecting holes (305) is smaller than the diameter of the mounting hole (302).

10. A new energy vehicle swing arm bushing according to claim 8, characterized in that: The first clamp (303) and the second clamp (304) have the same height. A rubber strip is fixedly connected to the inner surface of the outer frame (306). The two sides of the outer frame (306) abut against the first clamp (303) and the second clamp (304) respectively.

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