Fluid internal circulation disc brake

Abstract

The utility model discloses a fluid internal circulation disc brake which comprises a brake disc and a connecting shaft, the brake disc is of an integrated casting forming structure, a through hole is formed in the circle center of the brake disc, a positioning ring is arranged on the inner ring face of the through hole, an annular fluid cavity is formed in the brake disc face, and a flange plate is arranged on the top face of the connecting shaft. A connecting ring is arranged on the bottom face, and the connecting shaft is connected with a positioning block of the brake disc in a clamped mode through the connecting ring. The brake disc is integrally formed by casting, so that all parts are connected without welding, the strength is high, the stability is good, and the service life is prolonged; the fluid cavity, the fluid pipe, the water inlet, the water outlet and other components are arranged in the brake disc for combined use, an internal circulation heat dissipation loop is formed in the brake disc, the temperature of the brake disc can be rapidly and efficiently reduced, and the problems that the road surface is wet and slippery due to water spraying cooling, and the driving safety of other vehicles is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of truck brakes, in particular to a fluid internal circulation disc brake. Background Art

[0002] Trucks use brake pads and brake discs in combination for braking. Disc brakes mainly rely on the friction between the discs to achieve braking after the caliper squeezes the pads on both sides of the disc that rotates together with the wheel. When braking, due to the large inertia of the vehicle itself and the action of the brake on the edge of the disc, the temperature of the edge of the disc will rise rapidly.

[0003] Especially when driving on long downhill sections, frequent braking is required to control the driving speed. This operation will cause the brakes to remain hot for a long time, and the high temperature is difficult to dissipate. The existing solution is to install a water spray tank and continuously spray and cool down through a water pipe. However, under high-intensity use, the cooling and heat dissipation effect of spraying is not ideal. The water used for spraying and cooling cannot be recycled and is directly discharged, increasing driving costs. On the other hand, water flows onto the road, causing the road surface to become slippery, and in winter it will also cause the road surface to freeze, posing a major safety hazard to other vehicles and causing damage to the road surface. When the temperature of the edge of the brake disc rises to a certain temperature, the car will experience brake thermal decay when braking, affecting the braking effect.

[0004] Moreover, the components of brake discs currently used are cast separately and then welded together. When in use, they are prone to cracks or failures due to the combined effects of frictional heat and brake caliper pressure. Therefore, the welds need to be inspected regularly, which is time-consuming and laborious. Summary of the invention

[0005] In order to solve the above problems, the utility model provides an integrally cast disc brake which can effectively form an effective fluid flow channel inside the brake disc and has a good heat dissipation effect.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fluid internal circulation disc brake, comprising a brake disc and a connecting shaft, the brake disc is an integral casting structure, a through hole is opened at the center of the brake disc, a positioning ring is provided on the inner ring surface of the through hole, an annular fluid chamber is opened in the brake disc surface, a plurality of annular array positioning holes with internal threads are opened on the ring surface of the positioning ring, and 4-8 holes are arranged relatively in a group, and positioning grooves are opened on the ring surface between adjacent positioning holes in each group, and the ungrooved end surface of the positioning ring is formed to a positioning block, and at the same time, water inlets and drains are opened relatively on the ring end surfaces between the edge holes on both sides of the two groups of positioning holes, one end of the water inlet and the drain is connected to the fluid chamber, and a protrusion is provided on the top surface of the other end, and the protrusion is provided with a hole connected to it accordingly.

[0007] The inner ring side wall of the fluid chamber is provided with water channel holes, and there are two water channel holes, which are arranged opposite to each other and are respectively connected with the water inlet and the drain on the positioning ring. The outer ring side wall of the fluid chamber is provided with water diversion holes at positions opposite to the water channel holes, and the wall thickness on both sides of the water diversion holes is greater than the average wall thickness of the outer ring side wall of the fluid chamber. The outer ring side wall of the fluid chamber is provided with a plurality of sand discharge holes, and the sand discharge holes are arranged in a circular array on the outer ring side wall.

[0008] Water dividing columns are respectively installed in the two water dividing holes of the fluid chamber, and a fluid plug is installed in the drainage hole.

[0009] The top surface of the connecting shaft is provided with a flange, and the bottom surface is provided with a connecting ring. A bend pipe hole is provided on the end surface of the flange, and the distance between the center of the top surface and the center of the flange is the same as the distance between the hole in the end surface of the flange and its center. There are two bend pipe holes, and the two holes are arranged identically. A water pipe groove corresponding to the bend pipe hole is provided on the shaft body of the connecting shaft, and the size of the annular surface of the connecting ring is the same as that of the annular surface of the positioning ring. A connecting hole with an internal thread structure matched with the positioning hole on the end surface of the positioning ring and a bend pipe hole corresponding to the water pipe groove on the connecting shaft are provided on its end surface. A connecting groove matched with the positioning block of the positioning ring is also provided on the end surface of the connecting ring, and the ungrooved end surface forms a connecting block matched with the positioning groove on the positioning ring.

[0010] The connecting shaft is connected to the positioning block of the brake disc through a connecting ring. After the connection, the elbow hole of the connecting ring corresponds to the well water inlet and the drain outlet on the positioning ring respectively. At this time, the elbow hole on the flange, the water pipe groove on the connecting shaft body, the elbow hole on the connecting ring and the positioning ring are respectively connected to the water inlet and the drain outlet on the positioning ring to form a fluid pipe channel. A fluid pipe is arranged in the fluid pipe channel. The shape and structure of the fluid elbow are adapted to the structure inside the fluid pipe channel, and one end of the fluid pipe passes through the end face of the flange. Each connecting block and the connecting groove are connected by the positioning groove and the positioning block. Each connecting hole and the positioning are locked and connected by bolts.

[0011] Furthermore, an internal thread structure is provided in the sand discharge hole, a hexagonal nut is fixed on the top surface of the fluid plug, and an external thread structure compatible with the internal thread structure of the sand discharge hole is provided on the outer wall. The two are connected through this structure to form a sealing structure in the fluid chamber.

[0012] Furthermore, an internal thread structure is provided in the water diversion hole, the middle and upper part of the water diversion column is a cylindrical structure, the middle and lower part is a conical structure, and a long plug is installed on the outer periphery of the water diversion column. A hexagonal nut is fixed on the top surface of the long plug, and an external thread structure that is compatible with the internal thread box on the water diversion hole is provided on the outer peripheral surface. The two are connected through this structure to form a sealing structure in the fluid chamber.

[0013] Beneficial effects: 1. The brake disc of the utility model is formed by casting in one piece, so that the components are connected without welding, with high strength, good stability and extended service life; there is no need to perform weld flaw detection on the brake disc, which greatly reduces the maintenance cost during use.

[0014] ②. The utility model forms an internal circulation heat dissipation loop in the brake disc by arranging a fluid chamber, a fluid pipe, a water inlet, a water outlet and other components in the brake disc for combined use, which can quickly and efficiently reduce the temperature of the brake disc and solve the problem of slippery road surface caused by water spraying for cooling, affecting the driving safety of other vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the structure on the other side.

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the brake disc in the utility model.

[0019] Figure 5 It is a schematic cross-sectional structure diagram of the brake disc in the utility model.

[0020] Figure 6 This is the structural intention of the connecting shaft in the utility model.

[0021] Figure 7 for Figure 6 Schematic diagram of the structure on the other side.

[0022] Figure 8 It is a schematic cross-sectional structural diagram of the connecting shaft in the utility model.

[0023] Fig. 9 It is a structural schematic diagram of the fluid pipe in the utility model.

[0024] Fig.10 It is a structural schematic diagram of the water dividing column in the utility model.

[0025] In the figure: 1, brake disc; 2, connecting shaft; 3, positioning ring; 4, fluid chamber; 5, flange; 6, connecting ring; 7, water distribution column; 8, fluid plug; 9, fluid pipe; 201, water pipe groove; 301, positioning hole; 302, positioning groove; 303, positioning block; 304, water inlet; 305, drain outlet; 401, water channel hole; 402, water distribution hole; 403, sand discharge hole; 501, elbow hole; 601, connecting hole; 602, connecting groove; 603, connecting block. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. The drawings are all in a very simplified form and use inaccurate ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. Example 1

[0028] See also Figure 1-10 This embodiment discloses a fluid internal circulation disc brake, which is used to be installed on a vehicle for braking, and specifically includes a brake disc 1 and a connecting shaft 2.

[0029] See also Figure 1-3 The brake disc 1 is an integrally cast structure, a through hole is opened at the center of the brake disc 1, and a positioning ring 3 is provided on the inner ring surface of the through hole. Figure 3 and Figure 5 It can be seen that the brake disc 1 is provided with an annular fluid chamber 4. For the specific structure, see Figure 5 The ring surface of the positioning ring 3 is provided with 8 positioning holes 301 with internal threads in an annular array, which are arranged relatively in groups of 4. A positioning groove 302 is provided on the ring surface between adjacent positioning holes 301 in each group, and the end surface of the positioning ring 3 without a groove is formed to a positioning block 303. At the same time, a water inlet 304 and a drain outlet 305 are relatively provided on the ring end surface between the edge holes on both sides of the two groups of positioning holes 301. One end of the water inlet 304 and the drain outlet 305 are connected to the fluid chamber 4, and a protrusion is provided on the top surface of the other end, and the protrusion is provided with a hole connected to it accordingly.

[0030] from Figure 5 It can be seen that the inner ring side wall of the fluid chamber 4 is provided with water channel holes 401, the number of the water channel holes 401 is two, the two are arranged opposite to each other, and are respectively connected to the water inlet 304 and the drain port 305 on the positioning ring 3, and the outer ring side wall of the fluid chamber 4 is provided with water diversion holes 402 at positions opposite to the water channel holes 401, and the wall thickness on both sides of the water diversion holes 402 is greater than the average wall thickness of the outer ring side wall of the fluid chamber 4, see Figure 4 A plurality of drain holes 403 are provided on the outer ring side wall of the fluid chamber 4, and the drain holes 403 are arranged in a circular array on the outer ring side wall.

[0031] See also Figure 5The two water-dividing holes 402 of the fluid chamber 4 are respectively provided with water-dividing columns 7, a fluid plug 8 is installed in the drain hole, an internal thread structure is provided in the drain hole 403, a hexagonal nut is fixed on the top surface of the fluid plug 8, and an external thread structure matching the internal thread structure of the drain hole 403 is provided on the outer wall. The two are connected by this structure to form a sealing structure in the fluid chamber 4. The water-dividing hole 402 is provided with an internal thread structure. For the specific structure, see Fig.10 The middle and upper part of the water dividing column 7 is a cylindrical structure, and the middle and lower part is a conical structure. A long plug is installed on the outer shell of the water dividing column 7, and a hexagonal nut is fixed on the top surface of the long plug. The outer peripheral surface is provided with an external thread structure that is compatible with the internal thread box on the water dividing hole 402. The two are connected through this structure to form a sealing structure in the fluid chamber 4.

[0032] from Figure 1 and Figure 6 It can be seen that the top surface of the connecting shaft 2 is provided with a flange 5, and the bottom surface is provided with a connecting ring 6, see Figure 6 The end surface of the flange 5 is provided with a pipe bend hole 501, the distance between the center of the top surface and the center of the flange 5 is the same as the distance between the hole on the end surface of the flange 5 and its center, the number of the pipe bend holes 501 is two, and the two holes are arranged in the same manner, and the shaft body of the connecting shaft 2 is provided with a water pipe groove 201 corresponding to the pipe bend hole 501. For the specific structure, see Figure 7 The size of the ring surface of the connecting ring 6 is the same as that of the ring surface of the positioning ring 3, and a connecting hole 601 with an internal thread structure that is compatible with the positioning hole 301 on the end surface of the positioning ring 3 and a curved pipe hole 501 corresponding to the water pipe groove on the connecting shaft 2 are opened on the end surface of the connecting ring 6. A connecting groove 602 that is compatible with the positioning block 303 of the positioning ring 3 is also opened on the end surface of the connecting ring 6, and the ungrooved end surface forms a connecting block 603 that is compatible with the positioning groove 302 on the positioning ring 3.

[0033] See also Figure 1 , Figure 2 and Figure 3 The connecting shaft 2 is connected to the positioning block 303 of the brake disc 1 through the connecting ring 6. After the connection, the elbow hole 501 of the connecting ring 6 corresponds to the well water port and the drain port 305 on the positioning ring 3 respectively. At this time, the elbow hole 501 on the flange 5, the water pipe groove 201 on the shaft body of the connecting shaft 2, the elbow hole 501 on the connecting ring 6 and the positioning ring 3 are respectively connected to the water inlet 304 and the drain port 305 on the positioning ring 3 to form a fluid pipe 9 channel. The fluid pipe 9 is provided in the fluid pipe 9 channel. For the specific structure, see Fig. 9The shape and structure of the fluid elbow are compatible with the structure inside the channel tube of the fluid tube 9, and one end of the fluid tube 9 passes through the end surface of the flange 5, each connecting block 603 and the connecting groove 602 are snap-connected with the positioning groove 302 and the positioning block 303, and each connecting hole 601 and the positioning are locked and connected by bolts.

[0034] When using, see Figure 5 The fluid enters the fluid chamber 4 in the brake disc 1 from the fluid pipe 9 connected to the water inlet 304, and is then separated into two streams by the water dividing column 7 and moves to both sides thereof. The fluid flows in the fluid chamber 4 and absorbs the heat from the brake disc 1, cooling the brake disc 1, and then enters the drain port 305, and is discharged from another fluid pipe 9 connected thereto and cooled before circulating into the fluid chamber 4.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A fluid internal circulation disc brake, comprising a brake disc (1) and a connecting shaft (2), characterized in that: The brake disc (1) is an integrally cast structure, a through hole is provided at the center of the brake disc (1), a positioning ring (3) is provided on the inner annular surface of the through hole, an annular fluid chamber (4) is provided in the surface of the brake disc (1), a plurality of annular array positioning holes (301) with internal threads are provided on the annular surface of the positioning ring (3), and the positioning holes (301) are arranged in groups of 4 to 8. Positioning grooves (302) are provided on the annular surfaces between adjacent positioning holes (301) in each group, and the end surfaces of the positioning rings (3) without grooves are formed to the positioning blocks (303). At the same time, water inlets (304) and water outlets (305) are provided on the annular end surfaces between the most edge holes on both sides of the two groups of positioning holes (301), one end of the water inlet (304) and the water outlet (305) are connected to the fluid chamber (4), and a convex block is provided on the top surface of the other end, and the convex block is provided with a hole connected to the convex block; The inner ring side wall of the fluid chamber (4) is provided with water channel holes (401), the number of the water channel holes (401) being two, the two being arranged opposite to each other and respectively connected to the water inlet (304) and the water outlet (305) on the positioning ring (3); the outer ring side wall of the fluid chamber (4) is provided with water diversion holes (402) at positions opposite to the water channel holes (401), and the wall thickness on both sides of the water diversion holes (402) is greater than the average wall thickness of the outer ring side wall of the fluid chamber (4); the outer ring side wall of the fluid chamber (4) is provided with a plurality of water diversion holes (403), and the water diversion holes (403) are arranged in a circular array on the outer ring side wall; The two water diversion holes (402) of the fluid chamber (4) are respectively installed with water diversion columns (7), and the drainage hole is installed with a fluid plug (8); The top surface of the connecting shaft (2) is provided with a flange (5), and the bottom surface is provided with a connecting ring (6). The end surface of the flange (5) is provided with a pipe bend hole (501). The distance between the center of the top surface and the center of the flange (5) is the same as the distance between the hole on the end surface of the flange (5) and its center. The number of the pipe bend holes (501) is two, and the two holes are arranged in the same manner. The shaft body of the connecting shaft (2) is provided with a water pipe groove (201) corresponding to the pipe bend hole (501). The size of the annular surface of the connecting ring (6) is The ring surface is the same size as the positioning ring (3), and the end surface is provided with a connecting hole (601) with an internal thread structure that matches the positioning hole (301) on the end surface of the positioning ring (3) and a curved pipe hole (501) that corresponds to the water pipe groove on the connecting shaft (2). The end surface of the connecting ring (6) is also provided with a connecting groove (602) that matches the positioning block (303) of the positioning ring (3), and the end surface without the groove forms a connecting block (603) that matches the positioning groove (302) on the positioning ring (3); The connecting shaft (2) is connected to the positioning block (303) of the brake disc (1) by means of a connecting ring (6). After the connection, the elbow hole (501) of the connecting ring (6) corresponds to the well water inlet and the drain outlet (305) on the positioning ring (3). At this time, the elbow hole (501) on the flange (5), the water pipe groove (201) on the shaft body of the connecting shaft (2), the elbow hole (501) on the connecting ring (6) and the positioning ring (3) correspond to the water inlet on the positioning ring (3). (304) and the drain port (305) are connected to each other to form a fluid pipe (9) channel. A fluid pipe (9) is arranged in the fluid pipe (9) channel. The shape and structure of the fluid elbow are compatible with the structure inside the fluid pipe (9) channel. One end of the fluid pipe (9) passes through the end surface of the flange (5). Each connecting block (603) and the connecting groove (602) are engaged with the positioning groove (302) and the positioning block (303). Each connecting hole (601) and the positioning are locked and connected by bolts.

2. The fluid internal circulation disc brake according to claim 1, characterized in that: An internal thread structure is provided in the drainage hole (403), a hexagonal nut is fixed on the top surface of the fluid plug (8), and an external thread structure that matches the internal thread structure of the drainage hole (403) is provided on the outer wall. The two are connected through this structure, so that a sealing structure is formed in the fluid chamber (4).

3. A fluid internal circulation disc brake according to claim 1 or 2, characterized in that: An internal thread structure is provided in the water diversion hole (402); the middle upper portion of the water diversion column (7) is a cylindrical structure, and the middle lower portion is a conical structure; a long plug is provided on the outer surface of the water diversion column (7); a hexagonal nut is fixed on the top surface of the long plug; an external thread structure is provided on the outer peripheral surface that is compatible with the internal thread box on the water diversion hole (402); the two are connected through this structure, so that a sealing structure is formed in the fluid chamber (4).

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