Frame rear swing arm of four-wheel electric vehicle

Abstract

The utility model discloses a four-wheel electric vehicle frame rear swing arm which comprises a connecting arm, the side wall of the connecting arm is fixedly connected with two connecting shaft sleeves, two second mounting grooves are formed in the two connecting shaft sleeves, and the two second mounting grooves are symmetrically formed in the left side and the right side of the connecting shaft sleeves. Two rotating grooves are formed between the two second mounting grooves, a second communicating groove is formed between the two rotating grooves, embedding grooves are formed in the front portions of the two second mounting grooves, matching blocks are in contact with the inner surfaces of the embedding grooves, and fastening bolts are in threaded connection with the interiors of the matching blocks; and the fastening bolt extends to the outer surface of the connecting shaft sleeve. Through the design that the embedding groove is in close contact with the matching block, the integrity and stability of the connecting part are greatly enhanced, after the matching block is accurately embedded into the embedding groove, the fastening bolt firmly locks the matching block in the embedding groove, multiple fastening guarantees are formed, and the risk that the matching block is disengaged under vehicle running vibration is completely eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rear swing arm of four -wheel electric vehicle frame technical field, concretely is a rear swing arm of four -wheel electric vehicle frame. BACKGROUND

[0002] With the enhancement of environmental protection consciousness and the transformation of energy structure, four -wheel electric vehicle as a kind of green travel traffic tool, market demand is increasing, its development not only needs to meet the basic power and endurance requirements, still needs to be optimized in the mechanical structure of vehicle, to ensure safety, comfort and reliability, frame is the key support structure of four -wheel electric vehicle, and rear swing arm as the important component of frame, it has the vital influence to the running performance of vehicle, in the early development stage of electric vehicle industry, due to the limitation of technology and cost, the design of rear swing arm of frame is relatively simple, mainly to meet the basic connection and support function.

[0003] Rear swing arm is an important component connecting wheels and frame, if its structural stability is insufficient, it will lead to the controllability of vehicle to be poor in the process of driving, especially when driving at high speed or turning, the vehicle can appear to lean or sway, influence the control of driver. SUMMARY

[0004] The utility model aims at providing a rear swing arm of four -wheel electric vehicle frame, through the design that embedded groove and cooperation piece contact closely, greatly strengthen the integrity and stability of connecting part, after cooperation piece is embedded in embedded groove accurately, the tight mechanical engagement is formed between both, fastening bolt locks cooperation piece firmly in embedded groove, forms multiple fastening guarantee, prevents the risk that cooperation piece is taken out under the vibration of vehicle driving.

[0005] To achieve the above object, provide a rear swing arm of four -wheel electric vehicle frame, it include: connecting arm, the lateral wall of connecting arm is fixedly connected with two connecting shaft sleeves, two second installation grooves are set in the inside of two connecting shaft sleeves, and two second installation grooves are symmetrically arranged on the left and right sides of connecting shaft sleeve, two rotating grooves are arranged between two second installation grooves, second communication groove is arranged between two rotating grooves, embedded groove is arranged in the front of two second installation grooves, the inner surface of embedded groove is contacted with cooperation piece, the inside of cooperation piece is screw thread connection with fastening bolt, and fastening bolt extends to the outer surface of connecting shaft sleeve.This structure design makes that component connection is stable and accurate, stress is uniform, guarantees the reliable operation of frame, improves the safety and durability of vehicle.

[0006] According to the rear swing arm of four -wheel electric vehicle frame, the lateral wall of connecting arm is fixedly connected with reinforcing column, and the connecting arm is V-shaped.The V-shaped design in combination with reinforcing column can reasonably disperse stress, enhance the strength of connecting arm, effectively resist external impact, and ensure that the rear swing arm stably supports the vehicle.

[0007] According to the four-wheel electric vehicle frame rear swing arm, the connecting arm is fixedly connected with a mounting sleeve on the side away from the connecting sleeve, the mounting sleeve is internally provided with two first mounting grooves, and the two first mounting grooves are symmetrically arranged on the upper and lower sides of the mounting sleeve.

[0008] According to the four-wheel electric vehicle frame rear swing arm, a first connecting groove is arranged between the two first mounting grooves and in the mounting sleeve.

[0009] According to the four-wheel electric vehicle frame rear swing arm, the inside of the matching block is matched with the inside of the embedded groove, and the embedded groove is provided with a second mounting groove, a matching block, a fastening bolt and a rotating groove.

[0010] According to the four-wheel electric vehicle frame rear swing arm, the inside of the second mounting groove is in communication with the inside of the rotating groove, the second communication groove and the embedded groove.

[0011] According to the four-wheel electric vehicle frame rear swing arm, the inside of the two connecting sleeves is symmetrically arranged, and the number of fastening bolts is four.

[0012] Compared with the prior art, the four-wheel electric vehicle frame rear swing arm has the beneficial effects that:

[0013] The second mounting groove, the rotating groove, the second communication groove, the embedded groove, the matching block and the fastening bolt are arranged, and the embedded groove and the matching block are in close contact, so that the integrity and stability of the connecting part are greatly improved.

[0014] Additional aspects and advantages of the present application will be given in part in the following description, some will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in combination with the drawings and examples.

[0016] Figure 1The utility model discloses a four-wheel electric vehicle frame rear swing arm's perspective view,

[0017] Figure 2 The utility model discloses a four-wheel electric vehicle frame rear swing arm's front view,

[0018] Figure 3 The utility model discloses a four-wheel electric vehicle frame rear swing arm's cross section perspective view,

[0019] Figure 4 The utility model discloses Figure 3 The structure of A in the middle is enlarged view.

[0020] In the drawing: 1, connecting arm; 2, reinforcing column; 3, mounting shaft sleeve; 4, first installation slot; 5, first connecting slot; 6, connecting shaft sleeve; 7, second installation slot; 8, fitting groove; 9, rotation groove; 10, second communication groove; 11, cooperation block; 12, fastening bolt. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-4The utility model provides a technical scheme: a four-wheel electric vehicle frame rear swing arm, include: connecting arm 1, the side wall fixed connection of connecting arm 1 has two connecting shaft sleeves 6, is used for with other components realizes accurate connection, ensures the stability of rear swing arm in the operation of vehicle, provides reliable support for whole frame structure, two second installation grooves 7 are set up in two connecting shaft sleeves 6, and two second installation grooves 7 are all symmetrically arranged in the left and right sides of connecting shaft sleeve 6, and such symmetric design guarantees the balance of installation, makes the subsequent installation component stress even, promotes frame overall performance, two second installation grooves 7 are provided with two rotary grooves 9 between, and rotary groove 9 provides space for the rotation of relevant components, satisfies the demand that rear swing arm needs flexible rotation in the process of vehicle travel, guarantees the smooth operation of vehicle steering, shock attenuation etc. action, two rotary grooves 9 are provided with second intercommunication groove 10 between, and second intercommunication groove 10 helps the layout of internal circuit, pipeline or other connecting piece, makes it can orderly penetrate, avoids mutual interference, optimizes frame internal structure, the front of two second installation grooves 7 all is provided with inlay groove 8, and inlay groove 8 is used for accurate positioning fitting block 11, ensures the compactness and accuracy of connection, prevents component loosening, displacement, guarantees the stability of frame structure, the inner surface contact of inlay groove 8 has fitting block 11, and fitting block 11 is closely matched with inlay groove 8, strengthens the strength of connecting position, jointly bears external force, promotes the durability of frame, and the internal thread of fitting block 11 is connected with fastening bolt 12, and fastening bolt 12 extends to the outer surface of connecting shaft sleeve 6, and fastening bolt 12 can firmly fix fitting block 11 in inlay groove 8, further strengthens the reliability of connection, ensures that frame is still stable under complex road conditions.

[0023] The side wall of the connecting arm 1 is fixedly connected with a reinforcing column 2, which can effectively enhance the structural strength of the connecting arm 1, resist the stress such as distortion and stretching in the driving of the vehicle, and guarantee the safety of the rear swing arm and even the entire vehicle frame. The connecting arm 1 is in a V shape, which is designed according to the principle of mechanics and can reasonably disperse the force from different directions to the vehicle frame, thereby improving the carrying capacity of the vehicle frame. The side of the connecting arm 1 away from the connecting shaft sleeve 6 is fixedly connected with a mounting shaft sleeve 3, which is used to connect other key components such as wheels and is an important connecting hub for realizing the function of the rear swing arm, thereby guaranteeing the normal driving of the vehicle. The mounting shaft sleeve 3 is internally provided with two first mounting grooves 4, which are symmetrically arranged on the upper and lower sides of the mounting shaft sleeve 3. The symmetric first mounting grooves 4 facilitate the installation and ensure the stability and balance of the connected components after installation. A first connecting groove 5 is arranged between the two first mounting grooves 4 and located in the interior of the mounting shaft sleeve 3. The first connecting groove 5 facilitates the laying of internal lines and pipelines, makes the internal layout of the vehicle frame neat and orderly, reduces the friction and interference between components, and cooperates with the interior of the fitting block 11 and the embedded groove 8 to ensure that they are tightly combined to form a stable connection and provide a solid and reliable structural foundation for the vehicle frame to cope with various bumps and vibrations in the driving of the vehicle. The embedded groove 8 is provided with a second mounting groove 7, a fitting block 11, a fastening bolt 12 and a rotating groove 9, and the components cooperate with each other to build a complete and efficient connection system, thereby guaranteeing the perfect realization of the function of the rear swing arm. The interior of the second mounting groove 7 is in communication with the interior of the rotating groove 9, the second communication groove 10 and the embedded groove 8, thereby realizing the interconnection of the internal structure, facilitating maintenance and repair, being beneficial to the lightweight design of the entire vehicle frame, and improving the performance of the vehicle. The interiors of the two connecting shaft sleeves 6 are symmetrically arranged, which guarantees that the rear swing arm is uniformly stressed and avoids the phenomenon of partial load, thereby prolonging the service life of the vehicle frame and improving the driving safety. The number of fastening bolts 12 is four, and the multiple fastening bolts 12 are uniformly distributed to provide stronger fastening force and guarantee the stability of the connection part in all directions, so that the vehicle frame is still firm and reliable under high-strength use.

[0024] Working principle: the connecting arm 1 with the connecting shaft sleeve 6 one end alignment vehicle frame corresponding installation position. Put two connecting shaft sleeve 6 respectively into the preset connecting parts of the frame, at this time, pay attention to the direction of connecting shaft sleeve 6, ensure that the two second installation groove 7 are symmetrically arranged on the left and right sides of connecting shaft sleeve 6, and each slot inside the two connecting shaft sleeve 6, such as rotating groove 9, second communication groove 10 etc. are in the correct orientation, in order to subsequent parts installation and cooperation, pick up the matching block 11, carefully embedded in the matching groove 8, make the matching block 11 and the matching groove 8 inner surface completely fit, ensure that the two are in close contact, this step should ensure accurate cooperation, can't appear skew or loose, because this is directly related to the stability of subsequent connection, after the matching block 11 embedded in the matching groove 8, pick up the fastening bolt 12, one end of which is aligned with the threaded hole on the matching block 11, then use wrench and other tools, clockwise rotate the fastening bolt 12, make it gradually screwed into the matching block 11 and extend to the outer surface of the connecting shaft sleeve 6, until the fastening bolt 12 is tightened, four fastening bolts 12 should be installed and tightened in the same way in turn, ensure the connecting parts firm and reliable, prevent loose in the process of vehicle driving, the other end of the connecting arm 1 installation shaft sleeve 3 alignment needs to be connected components, such as wheel assembly etc. Put the corresponding connecting parts on the installation parts into the two first installation groove 4 of the installation shaft sleeve 3, pay attention to the two first installation groove 4 symmetrically arranged on the upper and lower sides of the installation shaft sleeve 3, ensure the balance of installation, at the same time, ensure that the first connecting groove 5 can meet the laying requirements of line, pipeline etc., facilitate subsequent vehicle assembly.

[0025] The above embodiment of the present application is described in detail in combination with the drawings, but the present application is not limited to the above embodiment, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A four-wheel electric vehicle frame rear swing arm, comprising: The side wall of the connecting arm (1) is fixedly connected with two connecting shaft sleeves (6), characterized in that two second installation grooves (7) are arranged in the interiors of the two connecting shaft sleeves (6), the two second installation grooves (7) are symmetrically arranged on the left and right sides of the connecting shaft sleeve (6), two rotating grooves (9) are arranged between the two second installation grooves (7), a second communication groove (10) is arranged between the two rotating grooves (9), a matching groove (8) is arranged in front of each of the two second installation grooves (7), the inner surface of the matching groove (8) is in contact with a matching block (11), the interior of the matching block (11) is threadedly connected with a fastening bolt (12), and the fastening bolt (12) extends to the outer surface of the connecting shaft sleeve (6).

2. The rear swing arm of a four-wheel electric vehicle frame according to claim 1, characterized in that: The side wall of the connecting arm (1) is fixedly connected with a reinforcing column (2), and the connecting arm (1) is in a V shape.

3. The rear swing arm of a four-wheel electric vehicle frame according to claim 1, characterized in that: The side, away from the connecting shaft sleeve (6), of the connecting arm (1) is fixedly connected with an installation shaft sleeve (3), and the interior of the installation shaft sleeve (3) is provided with two first installation grooves (4), and the two first installation grooves (4) are symmetrically arranged on the upper and lower sides of the installation shaft sleeve (3).

4. The rear swing arm of a four-wheel electric vehicle frame according to claim 3, characterized in that: A first connecting groove (5) is arranged between the two first installation grooves (4), and the first connecting groove (5) is located in the interior of the installation shaft sleeve (3).

5. The frame swing arm of a four-wheel electric vehicle of claim 1, wherein: The interiors of the matching block (11) and the matching groove (8) are matched, and the matching groove (8) is provided with the second installation groove (7), the matching block (11), the fastening bolt (12) and the rotating groove (9).

6. The frame swing arm of a four-wheel electric vehicle of claim 1, wherein: The interior of the second installation groove (7) is in communication with the interiors of the rotating groove (9), the second communication groove (10) and the matching groove (8).

7. The frame swing arm of a four-wheel electric vehicle of claim 1, wherein: The interiors of the two connecting shaft sleeves (6) are symmetrically arranged, and the number of the fastening bolts (12) is four.

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