Heavy truck rear axle rear brake dust cover

Abstract

The utility model discloses a heavy truck rear axle rear brake dust cover, including dust cover body, is set up with two circumferential equidistance distribution's reserved slot on the dust cover body, and two reserved slots are fixedly connected with the through frame and the heat dissipation frame respectively in respectively, is provided with passive flow guide module on the through frame, passive flow guide module includes static plate, and static plate is located the outside of through frame, and the inside wall fixed connection of static plate's outside and dust cover body. The utility model discloses a heavy truck rear axle rear brake dust cover has can make device utilize the inertia on counterweight when heavy truck is braking and open the grating plate to guide the airflow to enter dust cover body again and export from the heat dissipation frame mode, and the heat of the brake is produced and is waited, thereby effectively reduced the heat of the brake in dust cover body, ensured the heat accumulation of heavy truck brake, avoided heat exhaustion, guaranteed the brake performance of heavy truck, improved the effect of the travel safety of heavy truck.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts, and in particular to a dust cover for the rear brake of a heavy truck rear axle. Background Technology

[0002] A brake dust cover is a protective cover in a braking system used to prevent contaminants such as dust, mud, and moisture from entering critical components. Although it is an inconspicuous small part, it is crucial for maintaining the performance and lifespan of the braking system.

[0003] The dust cover of the rear brake of the rear axle of existing heavy trucks is usually relatively closed, and airflow cannot be circulated. When the heavy truck is braking hard, a lot of heat generated by brake friction will accumulate in the brake and dust cover, causing the heavy truck brake to have a heat fade effect, reducing the stopping ability and posing a great hidden danger to the driving safety of heavy trucks. Utility Model Content

[0004] This utility model discloses a dust cover for the rear brake of a heavy-duty truck rear axle, which aims to solve the technical problem that the existing dust covers for the rear brake of a heavy-duty truck rear axle are too enclosed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dust cover for the rear brake of a heavy-duty truck rear axle includes a dust cover body. Two circumferentially spaced pre-drilled slots are formed on the dust cover body, and a flow frame and a heat dissipation frame are fixedly connected to each slot. A passive flow guiding module is provided on the flow frame. The passive flow guiding module includes an electrostatic plate located outside the flow frame and fixedly connected to the inner wall of the dust cover body. A control element is provided outside the dust cover body. Two symmetrical rectangular openings are formed on the side of the flow frame away from the dust cover body, and two symmetrical grid plates are movably connected to each rectangular opening. A shaft is movably connected to the flow frame, and a swing rod is fixedly connected to the outside of the shaft. Two symmetrical counterweights are provided on the swing rod. Two symmetrical flow guide strips are provided inside the electrostatic plate, and the outside of the flow guide strips is fixedly connected to the inner wall of the dust cover body. An isolation cover is fixedly connected to the outside of the flow frame, and a limit module is provided on the isolation cover.

[0007] In a preferred embodiment, the flow frame has two symmetrical circular holes, each containing a movably connected circular shaft. The circular shafts are fixedly connected to the side opposite the grid plate, and both shafts are fixedly connected to the outside of a transmission gear, which meshes with each other. A coil spring and a winding roller are fixedly connected to the outside of each of the two circular shafts. A bracket is fixedly connected to the outside of the flow frame, and a mounting ring is fixedly connected to the outside of the bracket. The mounting ring is located outside the coil spring, and its inner wall is fixedly connected to the end of the coil spring away from the circular shaft. A steel wire rope is fixedly connected to the outside of the winding roller. A transmission plate is fixedly connected to one side of the shaft, located inside the isolation cover. The end of the steel wire rope away from the winding roller is fixedly connected to one end of the transmission plate. A limit rod is fixedly connected to the inner wall of the flow frame, and its outside contacts the outside of the swing rod. A second filter plate is fixedly connected inside the heat dissipation frame. A mounting frame is fixedly connected to the side of the flow frame away from the dust cover body, and a first filter plate is fixedly connected to the inner wall of the mounting frame.

[0008] In a preferred embodiment, the limiting module includes an arc-shaped groove formed on the isolation cover. A short rod is slidably connected within the arc-shaped groove, and a clamp is fixedly connected to the outside of the short rod. The clamp is in contact with the inner wall of the isolation cover. A slot is formed on the side of the short rod away from the isolation cover, and a sliding rod is slidably connected within the slot. A spring is fixedly connected to the side of the sliding rod opposite to the inner wall of the slot. A limiting cap is fixedly connected to the side of the sliding rod away from the spring, and a rubber pad is fixedly connected to the side of the limiting cap near the isolation cover. The outside of the rubber pad is in contact with the outside of the isolation cover.

[0009] As can be seen from the above, the dust cover for the rear brake of the rear axle of a heavy truck provided by this utility model has the technical effect of enabling the device to open the grille plate by using the inertia of the counterweight when the heavy truck is braking, thereby guiding the airflow into the dust cover body and then dissipating it from the heat dissipation frame, thus effectively reducing the heat generated by braking in the dust cover body, ensuring the heat accumulation of the heavy truck brake, avoiding heat fade, ensuring the braking performance of the heavy truck, and improving the driving safety of the heavy truck. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of a dust cover for the rear brake of a heavy-duty truck rear axle, as proposed in this utility model.

[0011] Figure 2 This is a rear view structural diagram of a dust cover for the rear brake of a heavy-duty truck rear axle proposed in this utility model.

[0012] Figure 3 This is a schematic diagram of the passive flow guiding module structure of the dust cover for the rear brake of a heavy-duty truck rear axle proposed in this utility model.

[0013] Figure 4This is a schematic diagram of the flow frame structure of a dust cover for the rear brake of a heavy-duty truck rear axle, as proposed in this utility model.

[0014] Figure 5 This is a schematic diagram of the limiting module structure of a dust cover for the rear brake of a heavy-duty truck rear axle, as proposed in this utility model.

[0015] In the attached diagram: 1. Dust cover body; 2. Reserved groove; 3. Flow frame; 4. Heat dissipation frame; 5. Passive flow guiding module; 501. Mounting frame; 502. Filter plate one; 503. Filter plate two; 504. Electrostatic plate; 505. Control element; 506. Guide strip; 507. Isolation cover; 508. Transmission gear; 509. Winding roller; 510. Mounting ring; 511. Coil spring; 512. Grating plate; 513. Shaft; 514. Transmission plate; 515. Swing rod; 516. Counterweight; 517. Limiting rod; 518. Steel wire rope; 6. Limiting module; 601. Arc groove; 602. Short rod; 603. Clamping piece; 604. Sliding rod; 605. Spring; 606. Limiting cap; 607. Rubber pad. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] The dust cover for the rear brake of the rear axle of a heavy truck disclosed in this utility model is mainly used in scenarios where the dust cover for the rear brake of the rear axle of a heavy truck is too enclosed.

[0018] Reference Figures 1-5 A dust cover for the rear brake of a heavy-duty truck rear axle includes a dust cover body 1. Two circumferentially spaced pre-drilled slots 2 are formed on the dust cover body 1. A flow frame 3 and a heat dissipation frame 4 are respectively bolted into the two pre-drilled slots 2. A passive flow guiding module 5 is provided on the flow frame 3. The passive flow guiding module 5 includes an electrostatic plate 504, which is located outside the flow frame 3. The outer side of the electrostatic plate 504 is bolted to the inner wall of the dust cover body 1. A control element 505 is provided on the outer side of the dust cover body 1. The flow frame 3 is opened on the side away from the dust cover body 1. The system has two symmetrical rectangular openings, each containing two symmetrical grid plates 512 rotatably connected by bearings. A shaft 513 is rotatably connected to the flow frame 3 via bearings. A swing rod 515 is bolted to the outside of the shaft 513. Two symmetrical counterweights 516 are mounted on the swing rod 515. Two symmetrical guide strips 506 are mounted inside the electrostatic plate 504. The outside of the guide strips 506 is bolted to the inner wall of the dust cover body 1. An isolation cover 507 is bolted to the outside of the flow frame 3. A limit module 6 is mounted on the isolation cover 507.

[0019] Specifically, the device utilizes the passive airflow guiding module 5 to open the grille 512 using the inertia of the counterweight 516 when the heavy truck brakes. This guides airflow into the dust cover body 1 and then out through the heat dissipation frame 4, thus dissipating the heat generated by braking. This effectively reduces the heat generated by braking within the dust cover body 1, ensuring that the heavy truck brakes without accumulating heat, avoiding heat fade, guaranteeing the braking performance of the heavy truck, and improving the driving safety of the heavy truck.

[0020] Reference Figure 3 and Figure 4 In a preferred embodiment, the flow frame 3 has two symmetrical circular holes, each containing a circular shaft rotatably connected via bearings. The sides of the circular shafts opposite to the grid plate 512 are bolted together, and both shafts are bolted to the outside of a transmission gear 508, which meshes with each other. A coil spring 511 and a winding roller 509 are bolted to the outside of the two circular shafts, respectively. A bracket is bolted to the outside of the flow frame 3, and a mounting ring 510 is bolted to the outside of the bracket. The mounting ring 510 is located outside the coil spring 511, and its inner wall is bolted to the end of the coil spring 511 furthest from the circular shaft. The winding roller 509 is connected to the outside of the winding roller 509 by bolts. A transmission plate 514 is bolted to one side of the shaft 513. The transmission plate 514 is located inside the isolation cover 507. The end of the wire rope 518 away from the winding roller 509 is bolted to one end of the transmission plate 514. A limit rod 517 is bolted to the inner wall of the flow frame 3. The outside of the limit rod 517 contacts the outside of the swing rod 515. A filter plate 503 is bolted to the inside of the heat dissipation frame 4. An installation frame 501 is bolted to the side of the flow frame 3 away from the dust cover body 1. A filter plate 502 is bolted to the inner wall of the installation frame 501.

[0021] Specifically, when the heavy truck brakes, 516, located in 3 in the forward direction of the heavy truck, continues to move at its original speed due to inertia. This causes 516 to drive 514 to rotate, releasing 514 from the pull of 518. Under the torque of 511, the two 508s mesh and rotate, causing 512 to rotate and open. 509 then retracts 518, contacting the movement of the heavy truck. Air filtered by 502 enters 1 through 3. 505 controls 504 to generate static electricity, adsorbing dust in the airflow. The dust then enters 1 through the guide of 506. The heat generated in 1 due to braking is discharged from 4 by the incoming airflow. After the heavy truck stops, 516 rotates and falls, causing 512 to return to its original position and sealing 3.

[0022] In specific application scenarios, 5 is mainly used in the passive flow guidance process. That is, 5 uses 515, 514 and 518 to passively control the opening and closing of 512 by the inertia of 516 when the heavy truck is braking. This allows 1 to achieve the function of cooling the brake during braking and keeping it closed during driving. 504 and 506 can guide the airflow entering 1 and adsorb and remove dust in the airflow, effectively ensuring the cleanliness of 1, avoiding the impact of dust on the braking system and improving the service life of the braking system.

[0023] Reference Figure 5 In a preferred embodiment, the limiting module 6 includes an arc-shaped groove 601, which is formed on the isolation cover 507. A short rod 602 is slidably connected in the arc-shaped groove 601, and a clamping piece 603 is bolted to the outside of the short rod 602. The clamping piece 603 is in contact with the side opposite to the inner wall of the isolation cover 507. A slot is formed on the side of the short rod 602 away from the isolation cover 507. A sliding rod 604 is slidably connected in the slot, and a spring 605 is bolted to the side of the sliding rod 604 opposite to the inner wall of the slot. A limiting cap 606 is bolted to the side of the sliding rod 604 away from the spring 605, and a rubber pad 607 is bolted to the side of the limiting cap 606 near the isolation cover 507. The outside of the rubber pad 607 is in contact with the outside of the isolation cover 507.

[0024] Specifically, in rainy or snowy weather, to prevent moisture from entering the dust cover body 1, the limiting cap 606 is pulled outward against the tension of the spring 605, releasing the rubber pad 607 and the clamp 603 from clamping the inner wall of the isolation cover 507. The short rod 602 slides on the arc groove 601, bringing the short rod 602 closer to the transmission plate 514, thereby reducing the swing amplitude of the transmission plate 514 and controlling the floating of the grid plate 512, thereby reducing the air intake range of the flow frame 3. After adjustment, the limiting cap 606 is released, and under the pull of the spring 605, the rubber pad 607 and the clamp 603 stick tightly to each other, squeezing the inner wall of the isolation cover 507.

[0025] In specific application scenarios, the limit module 6 is mainly used for the limiting link in the limiting process. That is, the limit module 6 can use the arc groove 601 and the short rod 602 to control the rotation range of the transmission plate 514 coaxial with the swing rod 515, thereby controlling the opening and closing range of the grille plate 512. This avoids the situation where rainwater enters the dust cover body 1 due to the excessive opening and closing range of the grille plate 512, and ensures the normal operation of the braking system inside the dust cover body 1.

[0026] Working principle: When the heavy truck brakes, 516, located in section 3 along the truck's forward direction, maintains its original speed due to inertia. This causes 516 to drive 514 to rotate, releasing 514 from the pull of 518. Under the torque of 511, the two 508s mesh and rotate, causing 512 to rotate and open. 509 then retracts 518, contacting the movement of the heavy truck. Air filtered by 502 enters section 1 through section 3. 505 controls 504 to generate static electricity, adsorbing dust in the airflow. The dust is then guided into section 1 by 506. The heat generated in section 1 due to braking is expelled through section 4 by the incoming airflow. After the heavy truck stops, 516 rotates and falls, causing 5... 12 returns to its original position and seals 3. In rainy or snowy weather, in order to prevent moisture from entering the dust cover body 1, the limiting cap 606 is pulled outward against the tension of the spring 605, releasing the rubber pad 607 and the clamp 603 from clamping the inner wall of the isolation cover 507. The short rod 602 slides on the arc groove 601, making the short rod 602 closer to the transmission plate 514, thereby reducing the swing amplitude of the transmission plate 514 and controlling the floating of the grid plate 512, thereby reducing the air intake range of the flow frame 3. After the adjustment is completed, the limiting cap 606 is released. Under the pull of the spring 605, the rubber pad 607 and the clamp 603 stick tightly to each other, squeezing the inner wall of the isolation cover 507.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A heavy truck rear axle rear brake dust cover comprising a dust cover body (1), characterized in that, The dust cover body (1) has two circumferentially equidistant pre-reserved slots (2), and a flow frame (3) and a heat dissipation frame (4) are fixedly connected in the two pre-reserved slots (2), respectively. A passive flow guiding module (5) is provided on the flow frame (3). The passive flow guiding module (5) includes an electrostatic plate (504). The electrostatic plate (504) is located outside the flow frame (3). The outside of the electrostatic plate (504) is fixedly connected to the inner wall of the dust cover body (1). A control element (505) is provided on the outside of the dust cover body (1). Two pre-reserved slots (2) are provided on the side of the flow frame (3) away from the dust cover body (1). The rectangular opening is symmetrical, and two symmetrical grid plates (512) are movably connected inside the rectangular opening. A shaft (513) is movably connected to the flow frame (3). A swing rod (515) is fixedly connected to the outside of the shaft (513). Two symmetrical counterweights (516) are provided on the swing rod (515). Two symmetrical guide strips (506) are provided inside the electrostatic plate (504). The outside of the guide strips (506) is fixedly connected to the inner wall of the dust cover body (1). An isolation cover (507) is fixedly connected to the outside of the flow frame (3). A limit module (6) is provided on the isolation cover (507).

2. The dust cover for the rear brake of a heavy-duty truck rear axle according to claim 1, characterized in that, The flow frame (3) has two symmetrical circular holes, each with a circular shaft movably connected inside. The circular shafts are fixedly connected to the side opposite to the grid plate (512), and transmission gears (508) are fixedly connected to the outside of both circular shafts. The two transmission gears (508) mesh with each other.

3. A dust cover for the rear brake of a heavy-duty truck rear axle according to claim 2, characterized in that, Two circular shafts are respectively fixedly connected to the outside of a coil spring (511) and a winding roller (509). A bracket is fixedly connected to the outside of the flow frame (3). An mounting ring (510) is fixedly connected to the outside of the bracket. The mounting ring (510) is located outside of the coil spring (511). The inner wall of the mounting ring (510) is fixedly connected to the end of the coil spring (511) away from the circular shaft. A wire rope (518) is fixedly connected to the outside of the winding roller (509).

4. A dust cover for the rear brake of a heavy-duty truck rear axle according to claim 3, characterized in that, A transmission plate (514) is fixedly connected to one side of the shaft (513). The transmission plate (514) is located inside the isolation cover (507). The end of the wire rope (518) away from the winding roller (509) is fixedly connected to one end of the transmission plate (514). A limit rod (517) is fixedly connected to the inner wall of the flow frame (3). The outside of the limit rod (517) is in contact with the outside of the swing rod (515). A filter plate (503) is fixedly connected inside the heat dissipation frame (4). An installation frame (501) is fixedly connected to the side of the flow frame (3) away from the dust cover body (1). A filter plate (502) is fixedly connected to the inner wall of the installation frame (501).

5. A dust cover for the rear brake of a heavy-duty truck rear axle according to claim 1, characterized in that, The limiting module (6) includes an arc groove (601), which is opened on the isolation cover (507). A short rod (602) is slidably connected in the arc groove (601), and a clip (603) is fixedly connected to the outside of the short rod (602). The clip (603) is attached to the side opposite to the inner wall of the isolation cover (507).

6. A dust cover for the rear brake of a heavy-duty truck rear axle according to claim 5, characterized in that, The short rod (602) has a slot on the side away from the isolation cover (507), and a sliding rod (604) is slidably connected in the slot. A spring (605) is fixedly connected to the side of the sliding rod (604) opposite to the inner wall of the slot.

7. A dust cover for the rear brake of a heavy-duty truck rear axle according to claim 6, characterized in that, The sliding rod (604) is fixedly connected to a limit cap (606) on the side away from the spring (605), and a rubber pad (607) is fixedly connected to the side of the limit cap (606) near the isolation cover (507), with the outside of the rubber pad (607) fitting against the outside of the isolation cover (507).

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