Buffered cast iron drive hub

Abstract

The utility model belongs to the field of automobile parts, and relates to a buffer type cast iron driving wheel hub, which comprises a rim, two groups of wheel hubs are fixedly connected in the rim, dampers are installed on the two wheel hubs, buffer decoration frames are fixedly sleeved on the outer surfaces of the two dampers, a driver is commonly installed between the two wheel hubs, brake pad protection discs are fixedly installed on one side of the driver, a plurality of cylinder grooves are formed in the brake pad protection discs, main air cylinders are slidably installed in the cylinder grooves, auxiliary air cylinders are connected to the two sides of the main air cylinders, piston rods are movably arranged on the auxiliary air cylinders, pressure rods are hingedly connected to one end of the piston rods, and work type sleeve blocks corresponding to the pressure rods are arranged on the buffer decoration frames. When the impact force is too large and the gas is compressed to the minimum volume, the work type sleeve blocks are impacted to drive the connecting rods to act on the main air pressure buffer, so that the impact force in the lateral direction and the forward direction is buffered at the same time, multi-angle collision can be effectively responded and buffered in time, the damage to the wheel hub can be avoided, and the double damage to the impact object can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts and relates to a buffer-type cast iron drive wheel hub. Background Technology

[0002] Cast iron wheels are formed by pouring molten iron into a mold using a casting process, which then cools and solidifies. Cast iron possesses good mechanical strength and wear resistance, making it suitable for manufacturing components that withstand heavy loads and impacts. Due to its lower cost and simpler manufacturing process, cast iron wheels are commonly used in economy vehicles, such as passenger cars with gasoline engines and new energy electric vehicles. These vehicles do not have high requirements for the strength and weight of the wheels, and cast iron wheels can meet basic needs.

[0003] A Chinese utility model patent with publication number CN210760047U discloses a buffer-type cast iron drive hub, comprising a hub body and a hub bearing. The hub bearing is fixedly mounted on one side of the outer end of the hub body. A bearing protective cover is provided on the outer end of the hub body outside the hub bearing. A buffer baffle is provided on the outer side of the bearing protective cover. A sliding block is fixedly connected to one end of the buffer baffle. The sliding block is slidably disposed in a groove located on the outer wall of the bearing protective cover. A first buffer spring is fixedly disposed within the groove. The bottom end of the sliding block is fixedly disposed on the upper end of the first buffer spring. An extension plate is provided around the top of the bearing protective cover. A plurality of return springs are evenly installed inside the extension plate. The bottom end of each reset spring is fixedly connected to a first sealing plate. One end of the first sealing plate passes through the side wall of the bottom end of the extension plate and is fixedly mounted on the upper end of the buffer baffle by screws. A second buffer spring is fixedly connected to the side of the bottom end of the buffer baffle away from the bearing protective cover. One end of each second buffer spring is fixedly connected to a mounting block in a groove. The groove is located at the top of a circular groove. The circular groove is fixedly mounted on the outer edge of the wheel hub body. A placement groove is arranged around the outside of the groove. A second sealing plate is slidably arranged in the placement groove. The top end of the second sealing plate is fixedly mounted on the bottom end of the buffer baffle. A connecting rod is fixedly mounted on one end of the mounting block. One end of the connecting rod passes through the side wall of the circular groove and is fixed to the outside of the circular groove by screws.

[0004] The existing technology has the following technical defects:

[0005] Although the wheel rims currently on the market can withstand heavy loads and impacts, when a vehicle is driving on the road, when it encounters collisions with other cars or electric vehicles, which are basically hard collisions, the wheel rims will still experience friction and vibrations, or damage from external collisions. This is because rigid collisions cannot protect the wheel rim itself and can even lead to more serious collision accidents. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a buffer-type cast iron drive hub.

[0007] The buffer-type cast iron drive hub of this utility model includes a rim, two sets of hubs are fixedly connected inside the rim, both hubs are equipped with dampers, and buffer decorative frames are fixedly fitted on the outer surfaces of both dampers. A drive unit is installed between the two hubs, and a brake pad guard is fixedly installed on one side of the drive unit. Multiple cylinder grooves are opened on the brake pad guard, and a main cylinder is slidably installed in each cylinder groove. Auxiliary cylinders are connected to both sides of the main cylinders. A piston rod is movably arranged in the auxiliary cylinders, and a pressure rod is hinged to one end of the piston rod. I-shaped sleeves corresponding to the pressure rods are provided on the buffer decorative frames.

[0008] The inner wall of the wheel rim is equipped with multiple main air pressure dampers in a ring. Both sides of the main air pressure dampers are equipped with connecting rods, one of which is connected to the I-shaped sleeve block.

[0009] Multiple steel frames are fixedly connected to the wheel hub, steel beams are fixedly connected to the steel frames, and load-bearing bolts corresponding to the steel beams are provided on the steel frames. The load-bearing bolts are fixedly connected to the brake pad guard discs, and damping springs are fitted on the load-bearing bolts.

[0010] The steel beam is connected to a connecting rod frame via a top rod.

[0011] The connecting rod frame is movably connected to the I-shaped sleeve block, and the pressure rod is rotatably connected to the connecting rod frame.

[0012] The outer side of the buffer decorative frame is provided with multiple anti-collision slots in a ring shape.

[0013] Working process or working principle:

[0014] The buffer trim bracket blocks external impacts from the outside of the wheel hub. When an impactor strikes the outer ring or center of the wheel hub, the I-shaped sleeve and damper drive the connecting rod to move, which in turn drives the pressure rod to compress the piston rod, allowing the piston rod to move smoothly within the cylinder groove. The piston rod first compresses the gas in the auxiliary cylinder. When the impact force is too great and the gas is compressed to its minimum volume, it further drives the auxiliary cylinder to compress the gas in the main cylinder, thus achieving a multi-stage buffering effect with high speed and high inertia. Under the action of the main air pressure damper on the outer ring, the I-shaped sleeve impact drives the connecting rod and the main air pressure damper to buffer both lateral and forward impact forces. In another scenario, when an impactor strikes the anti-collision plate opening on the buffer trim bracket, the anti-collision plate in the anti-collision plate opening compresses the top rod, thereby driving the steel beam to move. During the movement of the steel beam, it will simultaneously slide outside the load-bearing bolt and contact the damping spring for buffering. At the same time, the movement of the two top rods will pull the two connecting rods to move, which in turn drives the two pressure rods to move and do work in the same way.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses an I-shaped sleeve and a damper to drive the connecting rod frame to move. The pressure rod compresses the piston rod, which first compresses the gas in the auxiliary cylinder. When the impact force is too great and the gas is compressed to its minimum volume, it further drives the auxiliary cylinder to compress the gas in the main cylinder. Under the action of the outer ring main air pressure damper, the I-shaped sleeve impacts and drives the connecting rod and the main air pressure damper to work together, thereby simultaneously buffering the lateral and forward impact forces. This is beneficial for the drive wheel hub during use, as it can effectively cope with multi-angle collisions and buffer them in a timely manner, avoiding damage to the wheel hub and reducing the double damage from the impacting object. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention.

[0018] Figure 2 This is a rear view structural schematic diagram of an embodiment of the present invention.

[0019] Figure 3 This is a utility model Figure 1 Schematic diagram of the structure of the intermediate buffer trim bracket and brake pad guard plate components.

[0020] Figure 4 This is a utility model Figure 1 A schematic diagram of the structure from a mid-view perspective.

[0021] Figure 5 This is a utility model Figure 2 Schematic diagram of the middle half section structure.

[0022] In the diagram: 1. Wheel rim; 2. Wheel hub; 3. Buffer trim frame; 4. Anti-collision pad opening; 5. I-shaped sleeve; 6. Damper; 7. Brake pad guard disc; 8. Main air pressure damper; 9. Driver; 10. Connecting rod; 11. Pressure rod; 12. Piston rod; 13. Main cylinder; 14. Damping spring; 15. Auxiliary cylinder; 16. Linkage frame; 17. Steel frame; 18. Steel beam; 19. Load-bearing bolt; 20. Push rod; 21. Cylinder groove. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-5As shown, a buffer-type cast iron drive hub includes a rim 1. Two sets of hubs 2 are fixedly connected to the inner side of the rim 1. Damperes 6 are installed on the opposite sides of the two sets of hubs 2. Buffer decorative frames 3 are fixedly fitted on the outer surfaces of the two dampers 6. A drive unit 9 is installed between the two hubs 2. A brake pad guard 7 is fixedly installed on one side of the drive unit 9. Multiple cylinder grooves 21 are circumferentially opened on one side wall of the brake pad guard 7. A main cylinder 13 is slidably installed on the inner side of the multiple cylinder grooves 21. Auxiliary cylinders 15 are slidably fitted on both sides of the main cylinder 13. A piston rod 12 is movably arranged on one side of each auxiliary cylinder 15. A pressure rod 11 is rotatably connected to one end of the piston rod 12. Multiple I-shaped sleeves 5 are movably arranged circumferentially along the outer edge of the buffer decorative frame 3. Multiple main air pressure buffers are circumferentially installed on the inner wall of the rim 1. Both sides of the impactor 8 and the main air pressure buffer 8 are equipped with connecting rods 10. One connecting rod 10 is connected to the I-shaped sleeve block 5. Multiple steel frames 17 are fixedly connected to one side wall of the wheel hub 2. A steel beam 18 is fixedly connected to the middle of the steel frame 17. Two load-bearing bolts 19 are movably installed on both sides of the steel frame 17 and the steel beam 18. Both load-bearing bolts 19 are fixedly connected to the brake pad guard disc 7. Damping springs 14 are movably installed on one side of the two load-bearing bolts 19 and the steel frame 17. Two top rods 20 are fixedly connected to one side wall of the steel beam 18. A connecting rod frame 16 is installed on the outer surface of the two top rods 20. The connecting rod frame 16 is movably connected to the I-shaped sleeve block 5. The pressure rod 11 is rotatably connected to the connecting rod frame 16. Multiple anti-collision plate openings 4 are opened in a ring on the outer side of the buffer decorative frame 3. The anti-collision plate openings 4 are used in conjunction with the two top rods 20.

[0025] Working process or principle:

[0026] When an impacting object strikes the outer ring or center of the wheel hub, the I-shaped sleeve 5 and the damper 6 can respectively drive the connecting rod 16 to move, thereby driving the pressure rod 11 to compress the piston rod 12, making the piston rod 12 move smoothly within the cylinder groove 21. The piston rod 12 first compresses the gas in the auxiliary cylinder 15. When the impact force is too large and the gas is compressed to its minimum volume, it further drives the auxiliary cylinder 15 to compress the gas in the main cylinder 13, thus achieving a multi-stage buffering of high-speed, high-inertia motion. Under the action of the outer ring main air pressure buffer 8, the I-shaped sleeve 5 impacts and drives the connecting rod 10 and the main air pressure buffer 8 to act, thereby simultaneously buffering the lateral and forward impact forces. Another situation is... When an impacting object strikes the anti-collision plate opening 4 on the buffer decorative frame 3, the anti-collision plate inside the anti-collision plate opening 4 presses against the top rod 20, thereby driving the steel beam 18 to move. During the movement of the steel beam 18, it will simultaneously slide outside the load-bearing bolt 19 and abut against the damping spring 14 for buffering. At the same time, the movement of the two top rods 20 will pull the two connecting rod frames 16 to move, which in turn will drive the two pressure rods 11 to move and do work in the same way as above. This provides multi-angle anti-collision protection for the wheel hub under external impact force, which is beneficial for the drive wheel hub to effectively cope with multi-angle collisions and buffer in time during use, avoid damage to the wheel hub, reduce the double damage from the impacting object, and improve the overall safety and quality of the buffer-type cast iron drive wheel hub.

[0027] This invention uses an I-shaped sleeve and a damper to drive the connecting rod frame to move. The pressure rod compresses the piston rod, which first compresses the gas in the auxiliary cylinder. When the impact force is too great and the gas is compressed to its minimum volume, it further drives the auxiliary cylinder to compress the gas in the main cylinder. Under the action of the outer ring main air pressure damper, the I-shaped sleeve impacts and drives the connecting rod and the main air pressure damper to work together, thereby simultaneously buffering the lateral and forward impact forces. This is beneficial for the drive wheel hub during use, as it can effectively cope with multi-angle collisions and buffer them in a timely manner, avoiding damage to the wheel hub and reducing the double damage from the impacting object.

[0028] The descriptions of the orientation and relative positional relationships of the structure in this utility model, such as descriptions of front, back, left, right, up, and down, do not constitute a limitation on this utility model, but are merely for the convenience of description.

Claims

1. A buffer-type cast iron drive hub, characterized in that: The system includes a rim (1), two sets of hubs (2) are fixedly connected inside the rim (1), both hubs (2) are equipped with dampers (6), the outer surfaces of both dampers (6) are fixedly fitted with buffer decorative frames (3), a driver (9) is installed between the two hubs (2), a brake pad guard (7) is fixedly installed on one side of the driver (9), multiple cylinder grooves (21) are opened on the brake pad guard (7), a main cylinder (13) is slidably installed in each cylinder groove (21), an auxiliary cylinder (15) is connected to both sides of the main cylinder (13), a piston rod (12) is movably set on the auxiliary cylinder (15), a pressure rod (11) is hinged to one end of the piston rod (12), and an I-shaped sleeve (5) corresponding to the pressure rod (11) is set on the buffer decorative frame (3).

2. The buffer-type cast iron drive hub according to claim 1, characterized in that: The inner wall of the rim (1) is equipped with a plurality of main air pressure dampers (8), and connecting rods (10) are installed on both sides of the main air pressure dampers (8), one of which is connected to the I-shaped sleeve block (5).

3. The buffer-type cast iron drive hub according to claim 2, characterized in that: Multiple steel frames (17) are fixedly connected to the hub (2), and steel beams (18) are fixedly connected to the steel frames (17). The steel frames (17) are provided with load-bearing bolts (19) corresponding to the steel beams (18). The load-bearing bolts (19) are fixedly connected to the brake pad guard (7), and damping springs (14) are fitted on the load-bearing bolts (19).

4. The buffer-type cast iron drive hub according to claim 3, characterized in that: The steel beam (18) is connected to the connecting rod frame (16) by the top rod (20).

5. The buffer-type cast iron drive hub according to claim 4, characterized in that: The connecting rod frame (16) is movably connected to the I-shaped sleeve block (5), and the pressure rod (11) is rotatably connected to the connecting rod frame (16).

6. The buffer-type cast iron drive hub according to claim 5, characterized in that: The outer side of the buffer decorative frame (3) is provided with multiple anti-collision plate openings (4).

Images