Floating caliper type radial pneumatic disc brake

Abstract

The utility model relates to a floating caliper type radial air pressure disc brake which comprises a support, a caliper body, a pair of friction plates, a push rod assembly and a lever. A brake cavity and a caliper inner cavity are formed in the caliper body, the brake cavity vertically penetrates through the caliper body, and the caliper inner cavity communicates with the brake cavity; a mounting surface is formed on the caliper body at the rear port of the caliper body, and the mounting surface is a horizontal plane; a synchronous face is formed on the rear side of the caliper body and is a vertical plane, the synchronous face is of an n-shaped structure, a main adjusting installation hole and an auxiliary adjusting installation hole are formed in the two sides of the lower end of the synchronous face respectively, and four dragging rods used for supporting a chain are arranged at the upper end of the synchronous face. The caliper body is directly and integrally formed, and meanwhile, the structure of the caliper body is optimally designed, so that the light weight and the overall strength of the brake are realized, and the brake is convenient to assemble, maintain and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile brake, concretely relates to a floating caliper type radial air pressure disc brake. BACKGROUND

[0002] The existing radial air pressure disc brake still has the following shortcomings:

[0003] (1) The brake is large in size and heavy in quality, is limited by the narrow space of the rear axle, and is limited in use range, and cannot meet the whole vehicle lightweight requirement;

[0004] (2) The brake caliper body is mostly a complex split structure, has many parts, is not conducive to processing and assembly, and has a risk of bolt connection failure, and needs more sealing surfaces;

[0005] (3) The brake internal self-adjusting mechanism parts are scattered, are not conducive to assembly and performance control, and are inconvenient to maintain and maintain;

[0006] (4) The brake split structure is complex, the caliper body has large rigid deformation, and the stable output of the brake torque is affected.

[0007] As shown in Figure 9 The caliper body of the previous brake is mainly composed of three parts, the caliper body part one A, the caliper body part two B and the caliper body part three C, the three parts are connected by bolt fastening, and each part of the brake is installed in the three caliper body parts.

[0008] The problems of the previous radial air pressure disc brake are:

[0009] (1) The brake caliper body is large in size and heavy in quality, is limited by the narrow space of the rear axle, and is limited in use range, and cannot meet the whole vehicle lightweight requirement;

[0010] (2) The brake caliper body is a split structure, has many parts, is not conducive to processing and assembly, and has a risk of bolt connection failure, and needs more sealing surfaces;

[0011] (3) The brake internal self-adjusting mechanism parts are scattered, are not conducive to assembly and performance control, and are inconvenient to maintain and maintain;

[0012] (4) The brake split structure is complex, the caliper body has large rigid deformation, and the stable output of the brake torque is affected. SUMMARY

[0013] The utility model solves the technical problems that the prior art is overcome, and provides a floating caliper type radial air pressure disc brake, which solves the problems of complex structure and inconvenient assembly of the previous brake due to the split structure.

[0014] The utility model solves technical problems thereof adopts the technical scheme that:

[0015] Provide a kind of floating caliper type radial air pressure disc brake, comprising: support, caliper body, a pair of friction plate, push rod assembly and lever;

[0016] Brake cavity and caliper inner cavity are opened on the caliper body, the brake cavity is vertically through the caliper body, the caliper inner cavity is communicated with brake cavity, and the rear port of the caliper inner cavity is suitable for connecting external air chamber;

[0017] The upper end of the support and the friction plate are located in brake cavity, and the friction plate is arranged on the upper end of the support;

[0018] The push rod assembly and the lever are arranged in the caliper inner cavity, the push rod assembly is suitable for pushing the friction plate, and the lever is transversely arranged in the caliper inner cavity, the front end of the lever is connected with the push rod assembly, and the rear end of the lever extends to the rear port of the caliper inner cavity;

[0019] Mounting surface is formed on the caliper body at the rear port of the caliper body, and the mounting surface is a horizontal plane;

[0020] Synchronous surface is formed on the rear side of the caliper body, the synchronous surface is a vertical plane, the synchronous surface is formed in a structure of " ", main adjustment mounting hole and slave adjustment mounting hole are respectively arranged on the both sides of the lower end of the synchronous surface, and four drag rods for supporting chain are arranged on the upper end of the synchronous surface;

[0021] Main adjustment mechanism and slave adjustment mechanism are arranged on the rear side of the push rod assembly, the rear ends of the main adjustment mechanism and the slave adjustment mechanism extend from the main adjustment mounting hole and the slave adjustment mounting hole respectively, main sprocket is arranged on the rear end of the main adjustment mechanism, slave sprocket is arranged on the rear side of the slave adjustment mechanism, chain is connected between the main sprocket and the slave sprocket, and the chain is placed on the four drag rods.

[0022] Further, a protective cover is arranged on the synchronous surface, the main sprocket, the slave sprocket and the chain are located in the protective cover, and the protective cover is formed in a structure of " ".

[0023] Further, a pair of bearing mounting grooves are arranged in the caliper inner cavity, the bearing mounting grooves are semicircular structures, and clamping grooves are arranged on the upper end and the lower end of the bearing mounting grooves;

[0024] Semicircular needle bearing is arranged in the bearing mounting groove, a pair of clamping blocks are arranged on the bearing seat of the semicircular needle bearing, and the clamping blocks are matched with the clamping grooves to fix the semicircular needle bearing in the bearing mounting groove;

[0025] The lever forms two arc-shaped supporting portions, and the lever is matched with the semicircular needle bearing through the arc-shaped supporting portions.

[0026] Further, a connecting surface is formed at the front port of the inner cavity of the clamp. A plurality of connecting holes are provided on the connecting surface. The mounting plate of the push rod assembly is connected to the connecting holes by screws, thereby fixing the mounting plate on the connecting surface.

[0027] Further, the push rod assembly includes: a mounting plate, a support seat, a return spring, a pair of retaining rings, a pair of push rods, a main adjustment mechanism, and a secondary adjustment mechanism;

[0028] The push rods are arranged on both sides of the support seat and form a spiral fit with the support seat. The front ends of the push rods pass through the mounting plate and are connected to a push plate, and the push plate is adapted to cooperate with the friction plate;

[0029] A return spring is arranged between the front side of the support seat and the mounting plate, and the rear side of the support seat cooperates with the lever;

[0030] The main adjustment mechanism and the secondary adjustment mechanism are respectively connected to the two push rods.

[0031] Further, the inner cavity of the clamp includes an inner cavity one and an inner cavity two of the clamp. The inner cavity one of the clamp is a wide cavity and is connected to the brake cavity. The push rod assembly is located in the inner cavity one of the clamp. The inner cavity two of the clamp is a narrow cavity. The rear end of the lever extends into the inner cavity two of the clamp. The rear port of the caliper body is connected to the rear end of the inner cavity two of the clamp;

[0032] A flange body is formed on the caliper body at the junction of the inner cavity one and the inner cavity two of the clamp. The flange body is in a "冂" shaped structure, and the synchronization surface is located on the rear side surface of the flange body.

[0033] The beneficial effects of the present utility model are as follows:

[0034] For the floating caliper radial pneumatic disc brake of the present utility model, the caliper body is directly integrally formed, and at the same time, the structure of the caliper body is optimized. This will achieve the lightweight and overall strength of the brake, and also facilitate the assembly, maintenance, and repair of the brake.

[0035] The main adjustment mounting hole and the secondary adjustment mounting hole are directly opened at the rear side of the caliper body, so that the rear ends of the main adjustment mechanism and the secondary adjustment mechanism can directly extend out from the main adjustment mounting hole and the secondary adjustment mounting hole. The main sprocket, the secondary sprocket, and the chain can be directly installed outside the caliper body, which is convenient for the disassembly and assembly of the brake.

[0036] The semi-circular needle roller bearing in the brake is directly clamped to the caliper body through a fixture block, making it more convenient to install the lever in the caliper body of the brake. Description of the Drawings

[0037] The following further describes the present utility model in conjunction with the drawings.

[0038] Figure 1 It is a schematic diagram of the floating caliper radial pneumatic disc brake of the present utility model;

[0039] Figure 2 is the semi-diagram of the floating radial air pressure disc brake of the utility model;

[0040] Figure 3 and Figure 4 is the schematic diagram of the caliper body;

[0041] Figure 5 is the semi-diagram of the caliper body;

[0042] Figure 6 is the schematic diagram of the chain connecting master adjusting mechanism and slave adjusting mechanism;

[0043] Figure 7 is the schematic diagram of the semi-circular needle bearing;

[0044] Figure 8 is the schematic diagram of the push rod assembly;

[0045] Figure 9 is the schematic diagram of the traditional split caliper body;

[0046] wherein, 1, support, 11, friction plate;

[0047] 2, caliper body, 2a, brake cavity, 2b, one cavity in caliper, 2c, two cavities in caliper;

[0048] 21, mounting surface, 21-1, rear end port, 22, synchronization surface, 22-1, master adjusting mounting hole, 22-2, slave adjusting mounting hole, 23, drag lever, 24, connecting surface, 25, flange body;

[0049] 3, push rod assembly, 31, support seat, 32, push rod, 33, master adjusting mechanism, 33-1, master sprocket, 34, slave adjusting mechanism, 34-1, slave sprocket, 35, chain, 36, mounting plate, 37, return spring, 38, retaining ring;

[0050] 4, protective cover, 5, lever, 6, semi-circular needle bearing, 61, clamping block. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0052] The application provides a floating caliper type radial air pressure disc brake, which is described in detail below. It should be noted that the description order of the following embodiments is not limited as the preferred order of the embodiments of the application. In addition, the description of each embodiment in the following embodiments has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0053] To solve the technical problem that the brake structure is complex and inconvenient to assemble due to the split structure in the prior art, an embodiment of the application provides a floating caliper type radial air pressure disc brake. The following is described in detail.

[0054] As shown in Figures 1 to 8 , a floating caliper type radial air pressure disc brake comprises

[0055] a bracket 1, a caliper body 2, a pair of friction plates 11, a push rod assembly 3, and a lever 5;

[0056] The caliper body 2 is provided with a brake cavity 2a and an inner cavity, the brake cavity 2a penetrates the caliper body 2 from top to bottom, the inner cavity is in communication with the brake cavity 2a, and the rear port 21-1 of the inner cavity is adapted to be connected to an external air chamber;

[0057] The upper end of the bracket 1 and the friction plates 11 are located in the brake cavity 2a, and the friction plates 11 are arranged on the upper end of the bracket 1;

[0058] The push rod assembly 3 and the lever 5 are arranged in the inner cavity, the push rod assembly 3 is adapted to push the friction plates 11, the lever 5 is arranged transversely in the inner cavity, the front end of the lever 5 is connected to the push rod assembly 3, and the rear end of the lever 5 extends to the rear port 21-1 of the inner cavity;

[0059] An installation surface 21 is formed on the caliper body 2 at the rear port 21-1 of the caliper body 2, and the installation surface 21 is a horizontal surface;

[0060] A synchronization surface 22 is formed on the rear side of the caliper body 2, the synchronization surface 22 is a vertical plane, the synchronization surface 22 has a “|” structure, main adjustment installation holes 22-1 and secondary adjustment installation holes 22-2 are arranged on both sides of the lower end of the synchronization surface 22, and four drag rods 23 for supporting a chain 35 are arranged on the upper end of the synchronization surface 22;

[0061] A main adjustment mechanism 33 and a secondary adjustment mechanism 34 are arranged on the rear side of the push rod assembly 3, the rear ends of the main adjustment mechanism 33 and the secondary adjustment mechanism 34 extend from the main adjustment installation holes 22-1 and the secondary adjustment installation holes 22-2 respectively, a main sprocket 33-1 is arranged on the rear end of the main adjustment mechanism 33, as shown in Figure 6 , a secondary sprocket 34-1 is arranged on the rear side of the secondary adjustment mechanism 34, the chain 35 is connected between the main sprocket 33-1 and the secondary sprocket 34-1, and the chain 35 is placed on the four drag rods 23.

[0062] Specifically, as an optional implementation in the embodiment, as shown in Figure 1 and Figure 6 shown, the synchronization surface 22 is provided with a protective cover 4, and the main sprocket 33-1, the slave sprocket 34-1 and the chain 35 are located in the protective cover 4. The protective cover 4 is a "Dong" structure.

[0063] The protective cover 4 is fixed on the synchronization surface 22 by screws, and the chain 35 and the sprocket located outside the caliper body 2 are shielded by the protective cover 4.

[0064] Specifically, as an optional implementation in the embodiment, as shown in Figure 2 and Figure 7 shown, a pair of bearing mounting grooves are arranged in the inner cavity of the caliper, the bearing mounting grooves are semicircular structures, and clamping grooves are arranged at the upper end and the lower end of the bearing mounting grooves;

[0065] A semicircular needle bearing 6 is arranged in the bearing mounting groove, a pair of clamping blocks 61 are arranged on the bearing seat of the semicircular needle bearing 6, and the clamping blocks 61 are matched with the clamping grooves to fix the semicircular needle bearing 6 in the bearing mounting groove;

[0066] The lever 5 forms two arc-shaped supporting portions, and the lever 5 is matched with the semicircular needle bearing 6 through the arc-shaped supporting portions.

[0067] The semicircular needle bearing 6, as shown in Figure 7 forms clamping blocks 61 at both ends of the arc-shaped shaft seat, so that it can be clamped in the caliper body 2.

[0068] Specifically, as an optional implementation in the embodiment, as shown in Figure 4 and Figure 8 shown, a connecting surface 24 is formed at the front end of the inner cavity of the caliper, a plurality of connecting holes are arranged on the connecting surface 24, and the mounting plate 36 of the push rod assembly 3 is connected with the connecting holes through screws, so as to fix the mounting plate 36 on the connecting surface 24.

[0069] Specifically, as an optional implementation in the embodiment, as shown in Figure 8 shown, the push rod assembly 3 includes

[0070] a mounting plate 36, a supporting seat 31, a return spring 37, a pair of retaining rings 38, a pair of push rods 32, a main adjusting mechanism 33 and a slave adjusting mechanism 34;

[0071] The push rod 32 is arranged on both sides of the supporting seat 31 and forms a spiral cooperation with the supporting seat 31. The front end of the push rod 32 penetrates through the mounting plate 36 and is connected with a push disc. The push disc is adapted to cooperate with the friction plate 11.

[0072] The return spring 37 is arranged between the front side of the support seat 31 and the mounting plate 36, and the rear side of the support seat 31 is matched with the lever 5.

[0073] The main adjusting mechanism 33 and the slave adjusting mechanism 34 are respectively connected with the two push rods 32.

[0074] The push rod 32 is a screw rod.

[0075] The stop ring 38 is connected with the support seat 31 and is press-fitted on the support seat 31. The stop ring 38 is a rubber part, a steel ring is arranged in the small-diameter opening of the stop ring 38, and then the stop ring 38 is press-fitted on the support seat 31. The surface of the stop ring 38 is provided with fine holes for ventilation. The stop ring 38 is used for protecting the sealing cover of the screw rod and preventing oil stains from entering.

[0076] The working principle of the push rod assembly 3 is as follows: the rear end of the lever 5 is matched with the air chamber top rod. When the air chamber top rod pushes the lever 5 downward, the front end of the lever 5 pushes the support seat 31 to move forward, and the support seat 31 drives the two push rods 32 and the push disc to move forward together, so as to realize the braking of the friction plate 11. When the air chamber top rod is released, the support seat 31 and the lever 5 are reset to the rear under the action of the return spring 37.

[0077] The main adjusting mechanism 33 and the slave adjusting mechanism 34 are mainly used for adjusting the relative positions of the push rods 32 on the support seat 31, so as to adjust the position of the push disc relative to the support seat 31, and finally control the braking gap between the friction plate 11 and the friction disc on the vehicle.

[0078] The principle of the main adjusting mechanism 33 and the slave adjusting mechanism 34 in the embodiment is the same as that of the existing one, which will not be described herein.

[0079] The caliper body 2 in the brake is designed integrally. When the push rod assembly 3 is installed in the caliper body 2, the push rod assembly 3 can be assembled in advance, the remaining two sprockets and the chain 35 at the rear end of the main adjusting mechanism 33 and the slave adjusting mechanism 34 are temporarily not installed, the push rod assembly 3 is inserted into the caliper cavity from the front opening of the caliper body 2, the mounting plate 36 is locked and connected with the connecting surface 24, the rear end of the main adjusting mechanism 33 and the slave adjusting mechanism 34 respectively extends from the main adjusting mounting hole 22-1 and the slave adjusting mounting hole 22-2, the main sprocket 33-1 and the slave sprocket 34-1 are then installed, and finally the chain 35 is connected.

[0080] The installation mode reduces the assembly difficulty of the brake and is convenient for disassembly, assembly and maintenance.

[0081] Specifically, as an optional implementation manner in the embodiment, as shown in Figure 3 , Figure 4 and Figure 5As shown, the inner cavity of the caliper includes an inner cavity 2b and an inner cavity 2c, the inner cavity 2b is a wide cavity and is connected with the brake cavity 2a, the push rod assembly 3 is located in the inner cavity 2b, the inner cavity 2c is a narrow cavity, the rear end of the lever 5 extends into the inner cavity 2c, and the rear end port 21-1 of the caliper body 2 is located at the rear end of the inner cavity 2c.

[0082] A flange body 25 is formed on the caliper body 2 at the joint of the inner cavity 2b and the inner cavity 2c, the flange body 25 is formed in a "L" structure, and the synchronization surface 22 is located on the rear side of the flange body 25.

[0083] The caliper body 2 is integrally formed, and the structure of the inner cavity is optimized, the chain wheel and the chain 35 of the main adjusting mechanism 33 and the slave adjusting mechanism 34 are located inside the caliper body 2 in the prior art, and each component of the push disc assembly is assembled while the split caliper body 2 is assembled into a whole, so that the assembly efficiency is very low, and the inner cavity of the integrated caliper body 2 is re-optimized, the chain wheel and the chain 35 of the main adjusting mechanism 33 and the slave adjusting mechanism 34 are installed outside the caliper body 2, so that the overall weight of the caliper body 2 is reduced, the light weight is realized, and the integrated structure makes the overall strength of the caliper body 2 higher.

[0084] The caliper body 2 is integrally formed, the stress structure is better, the problem of failure of the connecting bolt of the split caliper is avoided, the number of assembly parts is reduced, the weight of the brake is reduced, the rigid deformation amount is small, the rigidity and hardness of the brake are improved, the sealing property of the brake is improved, water and dust are prevented from entering the caliper, and the service life of the brake is improved.

[0085] In the present application, each device (parts without specific structure) is a general standard part or a part known to those skilled in the art, and its structure and principle can be known by technical personnel through a technical manual or through a conventional experimental method.

[0086] In the description of the embodiments of the present application, unless otherwise clearly defined and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, and can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0087] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0088] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some communication interface, device or unit, which can be electrical, mechanical or other forms.

[0089] The units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0090] In addition, the functional units in each embodiment of the utility model can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit.

[0091] Based on the above ideal embodiments according to the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the scope of the technical idea of the utility model. The technical scope of the utility model is not limited to the contents in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A floating caliper type radial pneumatic disc brake, characterized in that, Comprising: A bracket (1), a caliper body (2), a pair of friction plates (11), a push rod assembly (3), and a lever (5); A brake cavity (2a) and a caliper inner cavity are formed on the caliper body (2). The brake cavity (2a) penetrates the caliper body (2) vertically. The caliper inner cavity is connected to the brake cavity (2a), and the rear port (21-1) of the caliper inner cavity is adapted to connect to an external air chamber; The upper end of the bracket (1) and the friction plates (11) are both located in the brake cavity (2a), and the friction plates (11) are arranged at the upper end of the bracket (1); The push rod assembly (3) and the lever (5) are both arranged in the caliper inner cavity. The push rod assembly (3) is adapted to push the friction plates (11). The lever (5) is horizontally arranged in the caliper inner cavity, with its front end connected to the push rod assembly (3) and its rear end extending to the rear port (21-1) of the caliper inner cavity; An installation surface (21) is formed on the caliper body (2) at the rear port (21-1) of the caliper body (2), and the installation surface (21) is a horizontal plane; A synchronization surface (22) is formed at the rear side of the caliper body (2). The synchronization surface (22) is a vertical plane. The synchronization surface (22) is in a "冂" shaped structure. Main adjustment installation holes (22-1) and secondary adjustment installation holes (22-2) are respectively formed on both sides at the lower end of the synchronization surface (22). Four drag bars (23) for supporting a chain (35) are arranged at the upper end of the synchronization surface (22); A main adjustment mechanism (33) and a secondary adjustment mechanism (34) are arranged at the rear side of the push rod assembly (3). The rear ends of the main adjustment mechanism (33) and the secondary adjustment mechanism (34) respectively extend out from the main adjustment installation hole (22-1) and the secondary adjustment installation hole (22-2). A main sprocket (33-1) is arranged at the rear end of the main adjustment mechanism (33). A secondary sprocket (34-1) is arranged at the rear side of the secondary adjustment mechanism (34). A chain (35) is connected between the main sprocket (33-1) and the secondary sprocket (34-1), and the chain (35) is placed on the four drag bars (23); 2. The floating caliper radial pneumatic disc brake according to claim 1, wherein A protective cover (4) is arranged on the synchronization surface (22). The main sprocket (33-1), the secondary sprocket (34-1), and the chain (35) are all located inside the protective cover (4), and the protective cover (4) is in a "冂" shaped structure.

3. The floating caliper radial pneumatic disc brake according to claim 1, wherein A pair of bearing installation grooves are formed in the caliper inner cavity. The bearing installation grooves are in a semi-circular structure, and clamping grooves are formed at both the upper and lower ends of the bearing installation grooves; A semi-circular needle roller bearing (6) is arranged in the bearing installation grooves. A pair of clamping blocks (61) are arranged on the bearing seat of the semi-circular needle roller bearing (6). The clamping blocks (6-1) cooperate with the clamping grooves to fix the semi-circular needle roller bearing (6) in the bearing installation grooves; The lever (5) forms two arc-shaped supporting parts, and the lever (5) cooperates with the semi-circular needle roller bearing (6) through the arc-shaped supporting parts.

4. The floating caliper radial pneumatic disc brake according to claim 1, wherein A connecting surface (24) is formed at the front port of the inner cavity of the clamp. A plurality of connecting holes are provided on the connecting surface (24). The mounting plate (36) of the push rod assembly (3) is connected to the connecting holes by screws, thereby fixing the mounting plate (36) on the connecting surface (24).

5. The floating caliper radial pneumatic disc brake according to claim 1, wherein the push rod assembly (3) includes: a mounting plate (36), a support seat (31), a return spring (37), a pair of retaining rings (38), a pair of push rods (32), a main adjustment mechanism (33), and a secondary adjustment mechanism (34); the push rods (32) are arranged on both sides of the support seat (31) and form a spiral fit with the support seat (31). The front ends of the push rods (32) pass through the mounting plate (36) and then are connected to a push plate, and the push plate is adapted to cooperate with the friction plate (11); a return spring (37) is arranged between the front side of the support seat (31) and the mounting plate (36), and the rear side of the support seat (31) cooperates with the lever (5); the main adjustment mechanism (33) and the secondary adjustment mechanism (34) are respectively connected to the two push rods (32).

6. The floating caliper radial pneumatic disc brake according to claim 1, wherein the inner cavity of the clamp includes an inner first cavity (2b) and an inner second cavity (2c). The inner first cavity (2b) is a wide cavity and is connected to the brake cavity (2a). The push rod assembly (3) is located in the inner first cavity (2b). The inner second cavity (2c) is a narrow cavity. The rear end of the lever (5) extends into the inner second cavity (2c). The rear port (21-1) of the caliper body (2) is connected to the rear end of the inner second cavity (2c); a flange body (25) is formed on the caliper body (2) at the junction of the inner first cavity (2b) and the inner second cavity (2c). The flange body (25) is in a "冂" - shaped structure. The synchronization surface (22) is located on the rear side surface of the flange body (25).

Images