Intelligent cooling automobile drum axle

Abstract

The utility model relates to a kind of automobile drum axle, especially a kind of automobile drum axle of intelligent cooling, drum axle, braking force is larger, cost is lower, widely used in brake system of truck, passenger car, semitrailer, but, when automobile drum axle brake, brake failure and tire burst situation easily appear, for this situation, the utility model proposes a kind of automobile drum axle of intelligent cooling, it is on original structure, add water jacket brake drum, rotary pump, radiator and connecting pipeline, with bidirectional water temperature temperature controller intelligent control, hot water vane, cold water vane rotation removes hot water, back cold water cooling work, the utility model cooling effect is good, simple structure is practical, can effectively guarantee the driving safety of automobile.

Description

Technical Field

[0001] This utility model relates to an automotive drum axle, and more particularly to an automotive drum axle with intelligent cooling capability. Background Technology

[0002] Currently, drum axles are widely used in the braking systems of trucks, buses, and semi-trailers. The advantages of drum axles are: greater braking force and lower manufacturing cost. The disadvantages are: during use, drum axles are prone to brake failure, tire blowout due to heat, and tire deformation due to heat. Existing braking technology cannot completely reduce or eliminate these phenomena. Various methods to deal with brake fade include water spraying, electromagnetic retarder, hydraulic retarder, engine braking, wet brakes, roadside water cooling, and emergency lanes. The water spray method cools the brake drum by spraying water at a single point on its outer circumference, failing to cool the entire circumferential surface of the brake drum. Therefore, its cooling effect is limited. Continuous heavy braking can easily lead to brake failure or deformation and cracking of the brake drum. The water spray method requires a large amount of water, resulting in significant weight and necessitating frequent refills. Furthermore, its use in winter can cause road icing, hence its ban by traffic authorities in winter. Electromagnetic retarders are heavy, consume a lot of electricity, and suffer from severe heat fade issues with continuous use. Hydraulic retarders are less effective on mountain roads, especially on winding, steep, and long slopes in Yunnan, Guizhou, Sichuan, and Tibet. On mountain roads with significant elevation changes, or in rainy or snowy weather, brake cooling is not feasible due to delayed understeer. Hydraulic retarders have limited deceleration effects below 40 km / h. Wet brakes are unsuitable for large vehicles. Engine braking, due to its relatively low instantaneous braking force, can only provide supplementary braking. Roadside water cooling is limited in number, and hot brake drums can easily cause problems if tires are suddenly submerged in cold water. Carbon ceramic materials are expensive and unsuitable for drum axles. Emergency braking is a last resort for survival. Safe driving requires a good brake cooling method. Summary of the Invention

[0003] To address the problem of brake fade in automobiles, this invention proposes an intelligently cooling automotive drum axle. This intelligently cooling automotive drum axle does not alter the original brake structure of the vehicle, but provides a better new method and structure for brake cooling. The temperature of this new method and structure is intelligently controllable, which can prevent brake failure, reduce tire blowouts caused by brake overheating, and ensure driving safety to a greater extent.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an intelligent cooling automotive drum axle. The automotive drum axle includes a brake drum, brake pads, brake shoes, a base plate, a wheel hub, an axle, and a half-shaft. The brake drum is a hollow body in the shape of a round pot with an opening at the center of the bottom, and is installed on the flange of the wheel hub. The brake pads and brake shoes are installed on the base plate of the axle shaft diameter, and the wheel hub is installed on the bearing of the half-shaft shaft diameter. Its characteristic is that the intelligent cooling automotive drum axle consists of a water-jacketed brake drum installed on the wheel hub flange, a rotary pump installed on the outer ring of the inner end face of the wheel hub, and a radiator under the vehicle body, all connected by pipes to form a closed and interconnected cooling system in which cooling water can circulate. A water-jacketed brake drum is a brake drum with a water jacket added to its outer circumference. The water jacket is a closed cavity composed of a hollow ring and hollow rounded corners. Deep inside the inner circumference of the water jacket, there are symmetrically arranged hot water outlet holes for the brake drum connected to the hot water pipe and symmetrically arranged cold water return holes for the brake drum connected to the cold water pipe. The water jacket also has long hot water strips and short cold water strips. The rotary pump consists of a moving sub-pump and a stationary sub-pump. The moving sub-pump is mounted on the outer ring of the inner end face of the hub, while the stationary sub-pump is mounted on the base plate. The moving sub-pump has a three-circle, two-cavity inner annular cavity with an opening on its vertical surface. Its hot water inlet and cold water outlet are symmetrically located on the outer annular cavity end faces of the large and middle circles, and the small and middle circles, respectively. These two holes are connected to the hot water pipe and the cold water pipe, respectively. The three-circle diameter of the moving sub-pump can be inserted into the three-circle diameter of the stationary sub-pump. The stationary sub-pump also has a three-circle, two-cavity outer annular cavity with an opening on its vertical surface. Its hot water outlet and cold water return are located on the inner annular cavity end faces of the large and middle circles, and the small and middle circles, respectively. Its two holes are connected to the hot water pipe and the cold water pipe respectively. The three-circle diameter of the fixed pump can also be inserted into the three-circle diameter of the moving pump. The difference between the three-circle diameters of the fixed pump and the moving pump is the radial dimension of the sealing ring. In the hot water annular cavity, there is a hot water blade for discharging hot water, which is installed on the hot water blade wheel. In the cold water annular cavity, there is a cold water blade for discharging cold water, which is installed on the cold water blade wheel. At the central circular hole of the moving pump, there are multiple bidirectional water temperature regulators symmetrically arranged. The bidirectional push rod of the bidirectional water temperature regulator extends and contracts with the water temperature. When the temperature rises and reaches the set temperature, the bidirectional push rod simultaneously presses the hot water blade wheel and the cold water blade wheel, becoming an integral part with the moving pump and rotating with the wheel.

[0005] The beneficial effects of this invention are as follows: Because of the water jacket structure designed for the automotive brake drum, overall cooling can be achieved from the circumference of the brake drum, effectively reducing brake heat and preventing brake failure and tire blowout; because a rotary pump is used, it can discharge hot brake water and pump the cooled water back into the brake drum's water jacket, ensuring continuous cooling; because a radiator is used, the hot brake water can be effectively cooled to cold water with minimal fluid, allowing for repeated recycling; and because a two-way thermostat is employed, the cooling system can be intelligently activated and put into operation. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1 This is a schematic diagram of an intelligently cooled automotive drum axle.

[0008] Figure 2 This is a H-H rotating cross-sectional view of the water jacket brake drum.

[0009] Figure 3 This is a cross-sectional view of the water jacket brake drum P-P.

[0010] Figure 4 This is a schematic diagram of the long hot water strip and the short cold water strip inside the water jacket.

[0011] Figure 5 This is a half-section view of the rotary pump B-B.

[0012] Figure 6 Left view of a rotary pump

[0013] In the diagram: 1-Radiator, 2-Hot water outer pipe, 3-Water jacket brake drum, 4-Brake pad, 5-Brake shoe, 6-Hot water inner pipe, 7-Wheel hub, 8-Bearing, 9-Half shaft, 10-Cold water inner pipe, 11-Rotary pump, 12-Base plate, 13-Cold water outer pipe, 14-Axle, 15-Bulb water jacket, 16-Bulb water jacket hot water outlet, 17-Bulb water jacket cold water return hole, 18-Hot water long strip, 19 - Short side strip for cold water; 20 - Cold water return hole for fixed sub-pump; 21 - Hot water outlet hole for fixed sub-pump; 22 - Hot water annular cavity; 23 - Hot water blade; 24 - Fixed sub-pump; 25 - Hot water blade ring; 26 - Sealing ring; 27 - Moving sub-pump; 28 - Hot water inlet hole for moving sub-pump; 29 - Cold water outlet hole for moving sub-pump; 30 - Bidirectional water temperature regulator; 31 - Cold water blade ring; 32 - Cold water annular cavity; 33 - Cold water blade Detailed implementation method:

[0014] exist Figure 5First, install the hot water blade (23) and cold water blade (33) on the hot water blade ring (25) and cold water blade ring (31) respectively. Place these two components into the fixed sub-pump (24). Install the symmetrical bidirectional water temperature regulator (30) on the middle round hole of the moving sub-pump (27) and install the sealing ring (26). Install the moving sub-pump (27) into the fixed sub-pump (24) and then fix it on the inner outer ring of the hub (7). Install the water jacket brake drum (3) on the flange of the hub (7) and connect the hot water inner water pipe (6) to the hot water outlet of the drum water jacket. Connect the cold water inner pipe (10) to the water hole (16) and the hot water inlet hole (28) of the moving pump, connect the cold water return hole (17) of the water jacket and the cold water outlet hole (29) of the moving pump, install the above components and bearing (8) on the half shaft (9), fix the fixed pump (24) on the base plate (12), install the radiator (1) under the carriage, connect the hot water outer pipe (2) to the hot water outlet hole (21) of the fixed pump and the radiator (1) respectively, and connect the cold water outer pipe (13) to the cold water return hole (20) of the fixed pump and the radiator (1) respectively.

[0015] During use, coolant is first added through the radiator (1). After the car is started, when the water temperature is lower than the set temperature, the hot water blades (23) and cold water blades (33) in the rotary pump (11) float in a non-powered state. When the water temperature reaches the set temperature, the bidirectional push rod of the bidirectional water temperature regulator (30) extends, pressing the hot water blade rim (25) and cold water blade rim (31) together to form a whole. The hot water blades (23) and cold water blades (33) rotate with the moving sub-pump (27) and the hub (7). At this time, the hot water in the water jacket brake drum (3) is guided out of the drum water jacket hot water outlet hole (16) along the hot water long strip (18), and flows from the hot water inner pipe (6), the moving sub-pump hot water inlet hole (28), and the hot water outlet hole (28). The water ring cavity (22) is pumped by the hot water blades (23) and flows out from the hot water outlet hole (21) of the fixed sub-pump. It flows into the radiator (1) through the hot water outer water pipe (2). The cold water cooled by the radiator (1) flows out from the cold water ring cavity (32) through the cold water return hole (20) of the fixed sub-pump through the cold water outer water pipe (13), pumped by the cold water blades (33), through the cold water outlet hole (29) of the moving sub-pump, and flows into the cold water ring cavity (32). It flows into the cold water jacket (15) through the cold water return hole (17) of the cold water inner water pipe (10). The cold water short strips (19) in the cold water jacket (15) can make the cold water spread more evenly. The circulating cooling water can continuously reduce the brake temperature of the brake drum (3) of the water jacket, thereby ensuring the safe driving of the car.

Claims

1. A smart cooling automotive drum axle, comprising a brake drum, brake pads (4), brake shoes (5), a base plate (12), a wheel hub (7), an axle (14), and a half-shaft (9). The brake drum is a hollow, pot-shaped body with an open center at the bottom, mounted on the flange of the wheel hub (7). The brake pads (4) and brake shoes (5) are mounted on the base plate (12) of the axle (14). The wheel hub (7) is mounted on the bearing (8) of the half-shaft (9). Its characteristic is that... The intelligent cooling vehicle drum axle consists of a water-jacketed brake drum (3) mounted on the flange of the wheel hub (7), a rotary pump (11) mounted on the outer ring of the inner end face of the wheel hub (7), and a radiator (1) under the vehicle body, which are connected by pipes to form a closed and interconnected cooling system in which the cooling water can circulate.

2. The intelligently cooled automotive drum axle according to claim 1, characterized in that: The water jacket brake drum (3) is a brake drum with a water jacket (15) added to the outer circle of the brake drum. The water jacket (15) is a closed cavity composed of a hollow ring and hollow rounded corners. Deep inside the inner circle of the water jacket (15), there are symmetrically arranged hot water outlet holes (16) of the brake drum connected to the hot water pipe (6) and symmetrically arranged cold water return holes (17) of the brake drum connected to the cold water pipe (10). In the water jacket (15), there are hot water long side strips (18) and cold water short side strips (19).

3. The intelligently cooled automotive drum axle according to claim 1, characterized in that it rotates... Pump (11) consists of a moving pump (27) and a fixed pump (24). The moving pump (27) is mounted on the outer ring of the inner end face of the hub (7), and the fixed pump (24) is mounted on the base plate (12). The structure of the moving pump (27) is a hollow annular cavity with an opening on the vertical surface of the inner annular cavity of the three circles and two chambers. The hot water inlet hole (28) and the cold water outlet hole (29) of the moving pump are symmetrically arranged on the outer annular cavity end faces of the large circle and the middle circle, and the small circle and the middle circle of the three circles, respectively. Its two holes are connected to the hot water pipe (6) and the cold water pipe (10) respectively. The three-circle diameter of the moving pump (27) can be inserted into the three-circle diameter of the fixed pump (24). The fixed pump (24) is a hollow annular cavity with an opening on the vertical surface of the outer annular cavity of the three-circle two-cavity pump. The hot water outlet hole (21) and the cold water return hole (20) of the fixed pump are respectively set on the inner annular cavity end face of the large circle and the middle circle, and the small circle and the middle circle in the three circles. Its two holes are connected to the hot water pipe (6) and the cold water pipe (10) respectively. The external water pipe (2) is connected to the cold water external water pipe (13). The three-circle diameter of the fixed sub-pump (24) can also be inserted into the three-circle diameter of the moving sub-pump (27). The difference between the three-circle diameters of the fixed sub-pump (24) and the moving sub-pump (27) is the radial dimension of the sealing ring (26). In the hot water annular cavity (22), there is a hot water blade (23) for discharging hot water. The hot water blade (23) is installed on the hot water blade wheel ring (25). In the cold water annular cavity (32), there is a return cold water... The water cooling blade (33) is installed on the cooling blade wheel (31); multiple bidirectional water temperature regulators (30) are symmetrically arranged at the round hole in the middle of the moving pump (27). The bidirectional push rod of the bidirectional water temperature regulator (30) extends and contracts with the water temperature. When the temperature rises and reaches the set temperature, the bidirectional push rod simultaneously presses the hot water blade wheel (25) and the cold water blade wheel (31) together, becoming an integral part with the moving pump (27) and rotating with the wheel.

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