Automobile high-strength swing arm

Abstract

The utility model relates to the technical field of automobile parts, in particular to an automobile high-strength swing arm which comprises a connector, a swing arm body and a sleeve shaft, the swing arm body is fixedly connected to the two sides of the lower end of the connector, and a swing arm high-strength reinforcing structure is arranged on the inner side of the lower end of the swing arm body. The swing arm high-strength reinforcing structure comprises connecting blocks, transverse rods and top blocks, the two connecting blocks are fixedly connected to the two sides of the inner wall of the swing arm body, and the transverse rods are fixedly connected to the inner sides of the two connecting blocks. According to the high-strength swing arm of the automobile, the connecting blocks are fixedly connected to the inner side of the swing arm body in a welding mode, the connecting blocks welded to the two sides are used for supporting the transverse rod, the transverse rod supplies upward thrust to the swing arm body through the trapezoidal blocks, and therefore the swing arm of the automobile can bear more pressure and automobile running stress and is not prone to being broken off; the automobile swing arm is reinforced in an auxiliary mode by adopting more firmer reinforcing modes, so that the strength of the automobile high-strength swing arm is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a high-strength swing arm for an automobile. Background Art

[0002] The automobile swing arm is an important automobile component. Its main function is to transmit force and torque between the wheel and the body, and it also plays a supporting and shock absorbing role. The structural design and performance of the swing arm are crucial to the safety and handling of the vehicle. Types of swing arms: Automobile swing arms can be divided into two types: front swing arms and lower swing arms. The front swing arm is mainly responsible for the guidance and support of the suspension, while the lower swing arm is used to support the body, shock absorber, and buffer vibration during driving.

[0003] For example, the authorization announcement number "CN214324826U" is named as a car swing arm. Although the threaded rod, connecting rod, arc-shaped support plate and sliding rod are arranged to cooperate with each other, it can better clamp and limit the close contact with the inner wall of the through hole on the car bracket, and it can also be better suitable for car brackets of different sizes, thereby greatly improving the use range of the swing arm and enhancing the practicability of the swing arm. However, the existing car swing arm, due to the use of thin swing arm brackets on both sides, is easily affected by the pressure of the car suspension and the impact force of the car falling during the driving process of the car. Therefore, the thin car swing arm body is easily compressed and bent and deformed. Although additional reinforcement plates are added to improve the strength of the swing arm, multiple reinforcement plates and the inner edge of the swing arm lack support and protection structures. Therefore, the actual strength of the existing car swing arm may be relatively poor.

[0004] At the same time, the existing automobile swing arm adopts a fixed structure for connecting the automobile bracket at the top of the swing arm body, but the pressure rod and the screw rod in the structure of fixing the swing arm are relatively slender. Therefore, when the pressure rod is subjected to too much downward pressure, the slender pressure rod is easy to break or bend, and the fixing force that the mounting tubes on the support seat can form is very limited. Bumps and shaking often occur during normal driving of the vehicle. The swing arm connection structure fixed by the slender structure and the mounting tube is very fragile, so damage and detachment of the swing arm connection occur, which reduces the service life of the automobile swing arm. Utility Model Content

[0005] The utility model aims to solve the problems of relatively low strength and short service life of automobile swing arms, and proposes a high-strength automobile swing arm.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength automobile swing arm, comprising a connecting head, a swing arm body and a sleeve shaft, the swing arm body being fixedly connected to both sides of the lower end of the connecting head, and a swing arm high-strength reinforcement structure is provided on the inner side of the lower end of the swing arm body, the high-strength reinforcement structure of the swing arm comprising a connecting block, a cross bar and a top block, the two connecting blocks being fixedly connected to both sides of the inner wall of the swing arm body, the inner sides of the two connecting blocks being fixedly connected with a cross bar, the inner bottom ends of the two connecting blocks being fixedly connected with two supporting plates, the upper parts of the two supporting plates being fixedly connected with the lower ends of the cross bars, the top ends of the cross bars being fixedly installed with a trapezoidal block, the upper parts of the trapezoidal blocks being fixedly connected with a top block, and the top end of the top block being fixedly connected with the inner top end of the swing arm body.

[0007] Preferably, the inner side of the swing arm body is provided with reinforcing ribs and a supporting structure;

[0008] The reinforcing ribs and supporting structure include reinforcing plates, reinforcing ribs and frames;

[0009] The reinforcement plate is fixedly installed on the inner side of the swing arm body, the frame is fixedly connected to the outer ends of the reinforcement plate, one side of the frame is fixedly connected to the inside of the swing arm body, the multiple reinforcement ribs are fixedly connected to the inside of the swing arm body, and the inner walls of the multiple reinforcement ribs are fixedly connected to the reinforcement plate.

[0010] Preferably, the plurality of reinforcing ribs are obliquely connected to the inner side of the frame, and the top of the cross bar is arranged vertically relative to the connecting head.

[0011] Preferably, two sleeve shafts are fixedly connected to the bottom end of the swing arm body, and the two sleeve shafts are rotatably connected inside with a connecting shaft, and the two connecting shafts are arranged parallel to each other.

[0012] Preferably, a swing arm structure for stable installation is provided inside the connector;

[0013] The stable installation swing arm structure comprises a docking port, a movable cavity and a positioning ring;

[0014] The docking port is fixedly connected to the side wall of the connecting head, a positioning ring is fixedly connected to the inner side of the docking port, the movable cavity is fixedly connected to the inner side of the docking port, a plurality of clamping blocks are movably connected to the inner side of the movable cavity, a pointed bolt is connected to the internal thread of the movable cavity, the end of the pointed bolt is movably connected to the inner side of a plurality of clamping blocks, and a screwing plate is fixedly connected to the rear side of the pointed bolt.

[0015] Preferably, a partition plate is fixedly installed below the connecting head, the lower end of the partition plate is fixedly connected to the top end of the swing arm body, and the two sides of the swing arm body are arranged relatively parallel.

[0016] The utility model provides a high-strength automobile swing arm, which has the beneficial effects that: the connecting block is connected to the inner side of the swing arm body by welding, so that the cross bar is supported by the connecting blocks welded on both sides, and the cross bar supplies the swing arm body with an upward thrust through the trapezoidal block, so that the automobile swing arm can withstand more pressure and automobile driving stress and is not easy to break, and more and more solid manufacturing and reinforcement methods are used to auxiliary reinforce the automobile swing arm, thereby improving the strength of the automobile high-strength swing arm.

[0017] When installing the high-strength swing arm, by moving the docking hole close to the connection with the car body that needs to be fixed, and twisting the plate will drive the inner pointed bolt to rotate inward. Since the pointed bolt is designed to have a smaller diameter at the front end and a larger diameter at the rear end, the squeezed and separated tightening blocks will install the docking interface with the car connection part that needs to be installed. By using a simple and stable installation method, the situation where the supporting force is limited due to the connection structure being too slender is reduced, thereby increasing the service life of the high-strength swing arm of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0020] Figure 3 for Figure 1 A side cross-sectional schematic diagram of

[0021] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0022] Figure 5 for Figure 3 Enlarged cross-sectional view of area B in the middle.

[0023] In the figure: 1. Connecting head, 2. Swing arm body, 3. Sleeve shaft, 4. Connecting shaft, 5. Reinforcement ribs and supporting structure, 51. Reinforcement plate, 52. Reinforcement ribs, 53. Frame, 6. High-strength reinforcement structure of the swing arm, 61. Connecting block, 62. Support plate, 63. Cross bar, 64. Trapezoidal block, 65. Top block, 7. Firmly install the swing arm structure, 71. Docking port, 72. Movable cavity, 73. Twist plate, 74. Pointed bolt, 75. Tightening block, 76. Positioning ring, 8. Partition plate. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] See also Figure 1-5A high-strength swing arm for automobiles, comprising a connector 1, a swing arm body 2 and a sleeve shaft 3, wherein the swing arm body 2 is fixedly connected to both sides of the lower end of the connector 1, and a swing arm high-strength reinforcement structure 6 is arranged on the inner side of the lower end of the swing arm body 2, and the swing arm high-strength reinforcement structure 6 comprises a connecting block 61, a cross bar 63 and a top block 65, two connecting blocks 61 are fixedly connected to both sides of the inner wall of the swing arm body 2, and the two connecting blocks 61 are connected to the inner side of the swing arm body 2 by welding, at which time the inside of the two connecting blocks 61 is used to support the connecting cross bar 63, the inner sides of the two connecting blocks 61 are fixedly connected with the cross bar 63, and the inner sides of the two connecting blocks 61 are fixedly connected with the cross bar 63. Two support plates 62 are fixedly connected to the side bottom end. The support plates 62 are made of alloy steel materials with relatively high toughness and hardness. The support force provided to the lower end of the upper cross bar 63 by the support plates 62 makes the lateral pushing force of the cross bar 63 higher and not easy to be deformed by pressure. The upper part of the two support plates 62 is fixedly connected to the lower end of the cross bar 63. The top of the cross bar 63 is fixedly installed with a trapezoidal block 64. The trapezoidal block 64 is made of strong and pressure-resistant stainless steel material to support the top top block 65 to support and fix the inner groove of the swing arm body 2. In this way, the cross bar 63 is supported by the connecting blocks 61 welded on both sides, and the cross bar 63 The rod 63 supplies the upward thrust to the swing arm body 2 through the trapezoidal block 64, so that the automobile swing arm can withstand more pressure and automobile driving stress and is not easy to break. A top block 65 is fixedly connected to the top of the trapezoidal block 64, and the top of the top block 65 is fixedly connected to the inner top of the swing arm body 2. The inner side of the swing arm body 2 is provided with reinforcing ribs and a supporting structure 5, and the reinforcing ribs and the supporting structure 5 include a reinforcing plate 51, a reinforcing rib 52 and a frame 53. The reinforcing plate 51 is fixedly installed on the inner side of the swing arm body 2. The reinforcing plate 51 is made of wear-resistant and impact-resistant metal iron material, and the frame 53 is made of stainless steel welded at both ends of the side wall of the swing arm body 2. It is a baffle structure. When in use, the reinforcing plate 51 is welded to both sides of the swing arm body 2 to improve the anti-collision ability, and then the reinforcing ribs 52 are evenly distributed on both sides of the reinforcing plate 51 in an oblique direction. In this way, the reinforcing ribs 52 will obliquely provide a stable force to protect the swing arm body 2 from being easily damaged by external forces. The frame 53 is fixedly connected to the outer ends of the reinforcing plate 51, one side of the frame 53 is fixedly connected to the inside of the swing arm body 2, and multiple reinforcing ribs 52 are fixedly connected to the inside of the swing arm body 2. The reinforcing ribs 52 are made of quenched alloy steel with good toughness, and the inner walls of the multiple reinforcing ribs 52 are fixedly connected to the reinforcing plate 51;

[0026] The two connecting blocks 61 are connected to the inner side of the swing arm body 2 by welding. At this time, the two connecting blocks 61 are used to support the connecting cross bar 63. The support plate 62 is made of alloy steel with high toughness and hardness. The support plate 62 provides support force to the lower end of the upper cross bar 63, so that the lateral pushing force of the cross bar 63 is higher and not easy to be deformed by pressure. The trapezoidal block 64 is made of strong and pressure-resistant stainless steel material to support the top top block 65 to support and fix the inner groove of the swing arm body 2. In this way, the cross bar 63 is supported by the connecting blocks 61 welded on both sides, and the cross bar 63 is supported by the trapezoidal blocks. 64 is used to supply the upward thrust to the swing arm body 2, so that the automobile swing arm can withstand more pressure and automobile driving stress and is not easy to break. The frame 53 adopts a stainless steel metal baffle structure welded to the two ends of the side wall of the swing arm body 2. When in use, the reinforcement plate 51 is welded to both sides of the swing arm body 2 to improve the anti-collision ability, and then the reinforcement ribs 52 are evenly distributed on both sides of the reinforcement plate 51 in an oblique direction. In this way, the reinforcement ribs 52 will provide a stable force obliquely to protect the swing arm body 2 from being easily damaged by external forces. More and more solid manufacturing reinforcement methods are used to auxiliary reinforce the automobile swing arm, thereby improving the strength of the automobile high-strength swing arm.

[0027] See also Figure 1-5 , a firmly mounted swing arm structure 7 is provided inside the connector 1, and the firmly mounted swing arm structure 7 includes a docking port 71, an active cavity 72 and a positioning ring 76. The docking port 71 is fixedly connected to the side wall of the connector 1, and a positioning ring 76 is fixedly connected to the inner side of the docking port 71. The positioning ring 76 facilitates the positioning of the docking port 71 and the connecting shaft of the automobile body, thereby reducing the installation time. The active cavity 72 is fixedly connected to the inner side of the docking port 71, and a plurality of tightening blocks 75 are movably connected to the inner side of the active cavity 72. The tightening blocks 75 are made of soft steel and can be deformed to a certain extent under pressure and then tightened on the connecting shaft of the automobile body. When installing the high-strength swing arm, place the docking hole 71 close to the automobile body connection that needs to be fixed, and then When the locking nut 75 is in place, the locking nut 73 is engaged with the locking nut 74 and the engagement nut 76 is engaged with the locking nut 78. When the locking nut 75 is in place, the engagement nut 73 is engaged with the locking nut 78 and the engagement nut 76 is engaged with the locking nut 78.

[0028] The locating ring 76 is used to conveniently locate the docking interface 71 and the connecting shaft of the automobile body, thereby reducing the installation time. The tightening block 75 is made of soft steel and can be deformed to a certain extent under pressure and then tightened on the connecting shaft of the automobile body. When installing the high-strength swing arm, the docking hole 71 is placed close to the connection of the automobile body that needs to be fixed, and then the body connecting pipe is inserted into the inside of the tightening block 75 and the movable cavity 72. At this time, the screwing plate 73 is rotated by an external tool, and the screwing plate 73 will drive the inner pointed bolt 74 to rotate inwardly. Since the pointed bolt 74 is designed to have a smaller front diameter and a larger rear diameter, when the pointed bolt 74 moves inwardly, the larger rear diameter will continuously squeeze the multiple tightening blocks 75 outward and separate them, and then the squeezed and separated tightening blocks 75 will install the docking interface 71 with the automobile connection part that needs to be installed, using a simple and stable installation method, reducing the situation where the supporting force is limited due to the excessively slender connection structure, thereby increasing the service life of the high-strength swing arm of the automobile.

[0029] See also Figure 1-5 , multiple reinforcing ribs 52 are obliquely connected to the inner side of the frame 53, the top of the cross bar 63 is arranged vertically relative to the connecting head 1, the bottom end of the swing arm body 2 is fixedly connected to two sleeve shafts 3, the internal rotation of the two sleeve shafts 3 is connected with a connecting shaft 4, the connecting shaft 4 can be rotated inside the sleeve shaft 3, and then the connecting shaft 4 is used to connect with the suspension structure under the car, the two connecting shafts 4 are arranged parallel to each other, and a partition plate 8 is fixedly installed below the connecting head 1. The partition plate 8 is made of the same stainless steel metal structure as the connecting head 1. The partition plate 8 can distinguish the connecting head 1 from the swing arm body 2 below, which is convenient for distinguishing the connection between the two during maintenance. The lower end of the partition plate 8 is fixedly connected to the top of the swing arm body 2, and the two sides of the swing arm body 2 are arranged relatively parallel.

[0030] Working principle:

[0031] First, when using a high-strength swing arm for a car, it is necessary to strengthen the strength and firmness of the swing arm itself, so as to improve the driving stability of the car. The specific operation is to connect the two connecting blocks 61 to the inner side of the swing arm body 2 by welding. At this time, the two connecting blocks 61 are used to support the connecting cross bar 63. The support plate 62 is made of an alloy steel material with relatively high toughness and hardness. The support plate 62 provides a supporting force to the lower end of the upper cross bar 63, so that the lateral pushing force of the cross bar 63 is higher and not easy to be compressed and deformed. The trapezoidal block 64 is made of a strong and pressure-resistant stainless steel material to support the top top block 65 to support and fix the inner groove of the swing arm body 2. In this way, the cross bar 63 is supported by the connecting blocks 61 welded on both sides, and the cross bar 63 provides the swing arm body 2 with an upward thrust through the trapezoidal block 64, so that the automobile swing arm can withstand more pressure and automobile driving stress and is not easy to break.

[0032] Then the frame 53 adopts a stainless steel metal baffle structure welded to both ends of the side wall of the swing arm body 2. When in use, the reinforcement plate 51 is welded to both sides of the swing arm body 2 to improve the anti-collision ability, and then the reinforcement ribs 52 are evenly distributed on both sides of the reinforcement plate 51 in an oblique direction. In this way, the reinforcement ribs 52 will provide a stable force in an oblique direction to protect the swing arm body 2 from being easily damaged by external forces;

[0033] The positioning ring 76 is used to conveniently position the docking interface 71 and the connecting shaft of the automobile body, thereby reducing the installation time. The tightening block 75 is made of soft steel and can be deformed to a certain extent under pressure and then tightened on the connecting shaft of the automobile body. When installing the high-strength swing arm, the docking hole 71 is placed close to the connection of the automobile body that needs to be fixed, and then the body connecting pipe is inserted into the inside of the tightening block 75 and the movable cavity 72. At this time, the screwing plate 73 is rotated by an external tool, and the screwing plate 73 will drive the inner pointed bolt 74 to rotate inwardly. Since the pointed bolt 74 is designed to have a smaller front diameter and a larger rear diameter, when the pointed bolt 74 moves inwardly, the larger rear diameter will continuously squeeze the multiple tightening blocks 75 outward and separate them, and then the squeezed and separated tightening blocks 75 will install the docking interface 71 with the automobile connection part that needs to be installed;

[0034] Finally, the connecting shaft 4 can be rotated inside the sleeve shaft 3, and then the connecting shaft 4 is used to connect with the suspension structure under the car. The two connecting shafts 4 are arranged parallel to each other, and the partition plate 8 is made of the same stainless steel metal structure as the connecting head 1. The partition plate 8 can distinguish the connecting head 1 from the lower swing arm body 2, so as to facilitate the distinction of the connection between the two during maintenance.

[0035] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A high-strength swing arm for an automobile, comprising a connector (1), a swing arm body (2) and a sleeve shaft (3), characterized in that: The swing arm body (2) is fixedly connected to both sides of the lower end of the connecting head (1); a swing arm high-strength reinforcement structure (6) is provided on the inner side of the lower end of the swing arm body (2); the swing arm high-strength reinforcement structure (6) comprises a connecting block (61), a cross bar (63) and a top block (65); the two connecting blocks (61) are fixedly connected to both sides of the inner wall of the swing arm body (2); the inner sides of the two connecting blocks (61) are fixedly connected to the cross bars (63); the inner bottom ends of the two connecting blocks (61) are fixedly connected to two support plates (62); the upper ends of the two support plates (62) are fixedly connected to the lower ends of the cross bars (63); the top ends of the cross bars (63) are fixedly mounted with a trapezoidal block (64); the upper ends of the trapezoidal blocks (64) are fixedly connected to the top blocks (65); the top ends of the top blocks (65) are fixedly connected to the inner top ends of the swing arm body (2).

2. The high-strength swing arm for automobile according to claim 1, characterized in that: The inner side of the swing arm body (2) is provided with reinforcing ribs and a supporting structure (5); The reinforcing rib and supporting structure (5) comprises a reinforcing plate (51), reinforcing ribs (52) and a frame (53); The reinforcing plate (51) is fixedly mounted on the inner side of the swing arm body (2); the frame (53) is fixedly connected to the outer ends of the reinforcing plate (51); one side of the frame (53) is fixedly connected to the inside of the swing arm body (2); the plurality of reinforcing ribs (52) are fixedly connected to the inside of the swing arm body (2); and the inner walls of the plurality of reinforcing ribs (52) are fixedly connected to the reinforcing plate (51).

3. The high-strength swing arm for automobile according to claim 2, characterized in that: The plurality of reinforcing ribs (52) are obliquely connected to the inner side of the frame (53), and the top of the cross bar (63) is arranged vertically relative to the connecting head (1).

4. The high-strength automobile swing arm according to claim 1, characterized in that: The bottom end of the swing arm body (2) is fixedly connected to two sleeve shafts (3), the two sleeve shafts (3) are rotatably connected inside with a connecting shaft (4), and the two connecting shafts (4) are arranged parallel to each other.

5. The high-strength swing arm for automobile according to claim 1, characterized in that: The interior of the connector (1) is provided with a swing arm structure (7) for stable installation; The firmly mounted swing arm structure (7) comprises a docking port (71), a movable cavity (72) and a positioning ring (76); The docking port (71) is fixedly connected to the side wall of the connecting head (1); a positioning ring (76) is fixedly connected to the inner side of the docking port (71); the movable cavity (72) is fixedly connected to the inner side of the docking port (71); a plurality of abutting blocks (75) are movably connected to the inner side of the movable cavity (72); a pointed bolt (74) is threadedly connected to the inner side of the plurality of abutting blocks (75); and a screwing plate (73) is fixedly connected to the rear side of the pointed bolt (74).

6. The high-strength automobile swing arm according to claim 1, characterized in that: A partition plate (8) is fixedly mounted below the connecting head (1), the lower end of the partition plate (8) is fixedly connected to the top end of the swing arm body (2), and the two sides of the swing arm body (2) are arranged relatively parallel.

Images