Full disc type braking device and method, wheel driving system and rail vehicle

Abstract

The invention relates to the technical field of braking systems, and provides a full disc type braking device and method, a wheel drive system and a railway vehicle. The full-disc brake device comprises a shell, a disc hub, a static disc, a movable disc and a brake cylinder. The shell is suitable for being fixedly connected with a shell of the motor; the disc hub is rotationally arranged in the shell, and the disc hub is fixedly connected with the non-output end of a rotating shaft of the motor; the static disc is axially connected to the shell in a sliding mode, and axial rotation limiting is formed by the static disc and the shell. The movable disc is arranged on the disc hub and is suitable for synchronously rotating with the disc hub; the brake cylinder is used for driving the static disc and the movable disc to be in contact fit for braking. According to the invention, a full-disc braking mode is adopted, the motor is mounted at the non-output end of the rotating shaft of the motor, and the motor is not directly connected with the axle, so that no additional braking bending moment is added to the axle, lightweight design of the axle is facilitated, the axle does not need to be provided with a braking shaft disc or a wheel disc, unsprung mass is greatly reduced, and dynamic performance is provided.

Description

Technical Field

[0001] The present invention relates to the technical field of brake systems, and in particular to a full-disc brake device, method, wheel drive system, and rail vehicle. Background Art

[0002] Traditional drive motors, gearboxes and brake systems are designed as independent systems, so the structural space they occupy is also independent of each other, which results in greater weight, larger size, greater energy consumption and higher cost.

[0003] As people's requirements for riding comfort and vehicle energy consumption increase, the demand for lightweight rail vehicle bogies is getting higher and higher. The basic braking device of traditional EMU or subway bogies generally uses pneumatic clamps to match brake wheel discs or brake shaft discs. The weight of the clamps and discs is relatively large. Each brake disc weighs about 110kg, and the average weight of each clamp is about 90kg. If each bogie is equipped with 4 clamps and 4 brake discs, the weight will be nearly 800kg. The large weight of the brake discs and clamps brings higher energy consumption, and also increases the unsprung and intersprung weight, which has an adverse effect on the vehicle's dynamic performance. Summary of the invention

[0004] The present invention provides a full disc brake device, method, wheel drive system and rail vehicle, which are used to solve the defect that the design form of the brake device in the prior art needs to adopt a larger brake structure, which leads to increased weight under the spring and between the springs.

[0005] The present invention provides a full-disc brake device, comprising:

[0006] A housing, adapted to be fixedly connected to a housing of a motor;

[0007] A disc hub is rotatably disposed in the housing, and the disc hub is fixedly connected to the non-output end of the rotating shaft of the motor;

[0008] The static disk is axially slidably connected to the housing and forms an axial rotation limit with the housing;

[0009] A moving disc is arranged on the disc hub and is suitable for rotating synchronously with the disc hub; and a brake cylinder is used to drive the stationary disc and the moving disc to contact and cooperate with each other for braking.

[0010] According to a full-disc brake device provided by the present invention, the end of the shell is fixedly connected to the outer shell of the motor through a flange structure, and a heat insulating space is formed between the end plate of the shell and the outer shell of the motor.

[0011] According to a full-disc brake device provided by the present invention, at least two of the static disk and the dynamic disk are provided, and the static disk and the dynamic disk are arranged alternately.

[0012] According to a full disc brake device provided by the present invention,

[0013] A first supporting boss is disposed on the inner side of the shell, and the first supporting boss extends along the axial direction of the shell;

[0014] The stator disk is sleeved on the outer side of the disk hub and spaced apart from the disk hub. An outer matching groove is provided on the outer side of the stator disk, and the outer matching groove is slidably matched with the first supporting boss.

[0015] According to a full-disc brake device provided by the present invention, the first supporting boss is provided with a first ventilation groove, the first ventilation groove extends along the axial direction of the shell and penetrates the first supporting boss and the side wall of the shell in the radial direction of the shell.

[0016] According to a full-disc brake device provided by the present invention, a second supporting boss is provided on the outer side of the disk hub, and the second supporting boss extends along the axial direction of the disk hub;

[0017] An inner matching groove is arranged on the inner side of the movable plate, the movable plate is sleeved on the outer side of the disc hub, and the inner matching groove of the movable plate is slidingly matched with the second supporting boss, and the outer side of the movable plate is spaced apart from the inner wall of the shell.

[0018] According to a full disc brake device provided by the present invention, the second supporting boss is provided with a second ventilation groove, the second ventilation groove extends along the axial direction of the disc hub, and the second ventilation groove is provided with openings at both ends along the axial direction of the disc hub.

[0019] According to a full-disc brake device provided by the present invention, the disc hub comprises:

[0020] An installation cylinder portion, used for being connected with the moving disk in cooperation;

[0021] an external connection portion, located inside the mounting cylinder and used to connect to the non-output end of the rotating shaft of the motor; and

[0022] A connecting spoke plate has one end connected to the inner side of the mounting cylinder and the other end connected to the external connection portion. The connecting spoke plate is a conical structure with a radial dimension gradually decreasing from one end connected to the mounting cylinder to one end connected to the external connection portion.

[0023] According to a full-disc brake device provided by the present invention, the external connection portion is bolted to the rotating shaft of the motor and is spline-matched.

[0024] The present invention also provides a wheel drive system, comprising a motor, a gear box, an axle and the above-mentioned full-disc brake device;

[0025] The motor comprises a rotating shaft, the output end of the rotating shaft is transmission-connected to the axle through the gear box, and the non-output end of the rotating shaft is connected to the full-disc brake device;

[0026] The axle is adapted to be connected to wheels.

[0027] A wheel drive system provided according to the present invention further includes a shaft sleeve, which is sleeved on the outer side of the axle; one side of the motor is elastically connected to the shaft sleeve.

[0028] The present invention also provides a rail vehicle, comprising the above-mentioned full-disc brake device, or comprising the above-mentioned wheel drive system.

[0029] The present invention also provides a braking method using the above-mentioned full-disc brake device, comprising:

[0030] A braking torque is applied to the non-output end of the rotating shaft of the motor, and the braking torque is transmitted to the gear box through the rotating shaft of the motor, and is applied to the axle after being amplified by the gear box.

[0031] The full-disc brake device, method, wheel drive system, and rail vehicle provided by the present invention adopt a full-disc brake type, which is installed at the non-output end of the motor shaft and is not directly connected to the axle, so there is no additional braking bending moment on the axle, which is conducive to the lightweight design of the axle. The axle does not need to be provided with a brake shaft disc or a wheel disc, and the unsprung mass is greatly reduced, which helps to provide dynamic performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a three-dimensional diagram of a full-disc brake device provided by the present invention in a state of being matched with a motor;

[0034] Figure 2 It is a cross-sectional view of a full-disc brake device provided by the present invention in a state of being matched with a motor;

[0035] Figure 3 It is one of the schematic diagrams showing the housing structure of a full-disc brake device provided by the present invention;

[0036] Figure 4 This is the second schematic diagram showing the housing structure of a full-disc brake device provided by the present invention;

[0037] Figure 5is an exploded view of a full-disc brake device provided by the present invention;

[0038] Figure 6 It is a schematic diagram showing the matching structure of a disc hub and a motor in a full disc brake device provided by the present invention;

[0039] Figure 7 It is a three-dimensional diagram showing the disc hub structure in a full disc brake device provided by the present invention;

[0040] Figure 8 It is a cross-sectional view showing the disc hub structure in a full disc brake device provided by the present invention;

[0041] Fig. 9 It is a structural schematic diagram of a wheel drive system provided by the present invention;

[0042] Reference numerals:

[0043] 100, housing; 101, first supporting boss; 102, first ventilation slot; 103, hollow hole; 104, end plate; 105, flange; 106, rib plate; 107, annular rib; 108, ventilation hole; 109, end cover;

[0044] 200, disk hub; 201, second supporting boss; 202, second ventilation slot; 203, mounting cylinder; 204, external connection portion; 205, connecting spoke; 206, through hole; 207, spline;

[0045] 300, static plate; 301, external matching groove;

[0046] 400, moving plate; 401, inner matching groove;

[0047] 500, brake cylinder;

[0048] 600, motor; 601, rotating shaft; 602, vertical suspension rod;

[0049] 700, gear box;

[0050] 800, shaft sleeve; 801, mounting ring;

[0051] 900. Wheel. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Combine the following Figures 1 to 8 A full disc brake device according to an embodiment of the present invention will be described.

[0054] like Figure 1 and Figure 2 As shown, the full disc brake device of the embodiment of the present invention comprises a housing 100, a disc hub 200, a static disc 300, a dynamic disc 400 and a brake cylinder 500. The housing 100 is suitable for being fixedly connected with the outer shell of the motor 600; the disc hub 200 is rotatably arranged in the housing 100, and the disc hub 200 is fixedly connected with the non-output end of the rotating shaft 601 of the motor 600; the static disc 300 is axially slidably connected with the housing 100, and forms an axial rotation limit with the housing 100; the dynamic disc 400 is arranged on the disc hub 200, and is suitable for synchronous rotation with the disc hub 200; the brake cylinder 500 is used to drive the static disc 300 and the dynamic disc 400 to contact and cooperate with each other for braking.

[0055] According to the full disc brake device of the embodiment of the present invention, the static disc 300 does not rotate under the limit of the housing 100, and the dynamic disc 400 can rotate synchronously with the disc hub 200 and the rotating shaft 601 of the motor 600. When the brake cylinder 500 drives the static disc 300 and the dynamic disc 400 to contact and cooperate, friction resistance is generated between the static disc 300 and the dynamic disc 400, thereby applying a braking torque to the disc hub 200 and the motor 600. The braking torque can be further transmitted to the axle by the rotating shaft 601 of the motor 600 to achieve vehicle braking. This braking structure can replace the braking form of the traditional brake wheel disc and the brake shaft disc, reduce the pressure of the braking structure on the axle, and achieve lightweight. In addition, since the braking torque is applied to the rotating shaft 601 of the motor 600, the gear box 700 between the rotating shaft 601 of the motor 600 and the axle can achieve the amplification of the braking torque, and the parking brake can be achieved by a smaller braking torque, which is conducive to reducing the strength requirements of the braking device and further achieving lightweight.

[0056] Combination Figure 3 and Figure 4 Optionally, the housing 100 adopts a cage structure. Specifically, the housing 100 is cylindrical or approximately cylindrical as a whole. At least one of the side wall of the housing 100 and the end plate 104 is provided with a hollow hole 103. A plurality of hollow holes 103 are provided at intervals around the circumference of the housing 100. Preferably, a plurality of hollow holes 103 are provided on the side wall of the housing 100. The hollow holes 103 can be in any shape such as a triangle, a rectangle or a trapezoid. In this way, the heat dissipation capacity of the full-disc brake device can be increased, and the overall weight of the full-disc brake device can be reduced.

[0057] In some embodiments of the present invention, the end of the housing 100 is fixedly connected to the outer shell of the motor 600 via a flange structure, and a heat insulating gap is formed between the end plate 104 of the housing 100 and the outer shell of the motor 600 .

[0058] Specifically, a flange 105 is provided at the end of the shell 100, and the flange 105 can be located on the radially outer side or the radially inner side of the shell 100. The side wall of the flange 105 that contacts the outer casing of the motor 600 is located on the outer side of the end plate 104 of the shell 100 in the axial direction of the shell 100. Therefore, when the flange 105 contacts the outer casing of the motor 600, a gap can be formed between the end plate 104 of the shell 100 and the outer casing of the motor 600.

[0059] Optionally, the end plate 104 of the housing 100 is provided with a reinforcing rib, which is connected to the flange 105 to increase the structural strength of the end plate 104. For example, as shown in the figure, the reinforcing rib includes a plurality of rib plates 106 arranged circumferentially and an annular rib 107 located in the middle of the end plate 104, and the end plate 104, the flange 105 and the reinforcing rib form a plurality of grooves.

[0060] In this embodiment, the housing 100 and the motor 600 are connected by a flange structure, which has the advantage of easy disassembly and assembly. In addition, the gap formed between the end plate 104 of the housing 100 and the outer shell of the motor 600 can block the braking heat energy from being directly transferred to the motor 600, thereby preventing the motor 600 from overheating.

[0061] In some embodiments of the present invention, the end plate 104 of the housing 100 is provided with ventilation holes 108 , and the ventilation holes 108 communicate with the space formed between the end plate 104 of the housing 100 and the outer shell of the motor 600 and the inner cavity of the housing 100 .

[0062] Optionally, a plurality of ventilation holes 108 are provided, and the plurality of ventilation holes 108 are evenly arranged along the circumference of the shell 100 .

[0063] In this embodiment, by providing the ventilation holes 108, the wind from the air duct of the motor 600 can be effectively introduced into the interior of the brake through the ventilation holes 108, thereby cooling the dynamic disc 400 and the static disc 300 in the full-disc brake device, thereby avoiding excessive temperature in the full-disc brake device.

[0064] See also Figure 5 In some embodiments of the present invention, an end cover 109 is provided at one end of the housing 100 away from the motor 600. The end cover 109 is a detachable structure, for example, installed by bolt fixing.

[0065] Optionally, the brake cylinder 500 is disposed on the end cover 109 .

[0066] Continue to see Figure 5 In some embodiments of the present invention, at least one of the static disk 300 and the dynamic disk 400 is provided with more than two, and the static disk 300 and the dynamic disk 400 are arranged alternately.

[0067] Optionally, more than two static disks 300 and more than two dynamic disks 400 are provided. For example, three static disks 300 are provided, and two dynamic disks 400 are provided. Intervals are formed between adjacent static disks 300 , and dynamic disks 400 are provided between adjacent static disks 300 .

[0068] It can be understood that the static plate 300 and the moving plate 400 can slide along the axial direction of the housing 100. When a gap is formed between the static plate 300 and the moving plate 400, the moving plate 400 can rotate freely along with the disk hub 200 and the rotating shaft 601 of the motor 600. When the brake cylinder 500 squeezes the static plate 300 and the moving plate 400 along the axial direction of the housing 100, the static plate 300 and the moving plate 400 contact and rub against each other, thereby, the static plate 300 can apply braking force to the moving plate 400.

[0069] Combination Figure 3 and Figure 5 In some embodiments of the present invention, a first supporting boss 101 is provided on the inner side of the shell 100. The first supporting boss 101 extends along the axial direction of the shell 100. The width of the first supporting boss 101 is the same at all locations. The stator plate 300 is sleeved on the outer side of the disk hub 200 and is spaced apart from the disk hub 200. An outer mating groove 301 is provided on the outer side of the stator plate 300. The outer mating groove 301 is slidably fitted with the first supporting boss 101.

[0070] Optionally, the width of the outer matching groove 301 is the same as the width of the first supporting boss 101 , so as to prevent the static plate 300 from shaking when driven by the dynamic plate 400 .

[0071] Optionally, a plurality of first supporting bosses 101 are evenly arranged along the circumference of the housing 100, a plurality of outer matching grooves 301 of the static plate 300 are evenly arranged along the circumference of the static plate 300, and a plurality of first supporting bosses 101 are correspondingly matched with a plurality of outer matching grooves 301. Thus, the matching strength between the static plate 300 and the housing 100 can be increased, and the forces on the static plate 300 and the dynamic plate 400 are evenly applied.

[0072] In this embodiment, the thickness of the first support boss 101 is greater than or equal to the depth of the outer matching groove 301. Preferably, the thickness of the first support boss 101 is greater than the depth of the outer matching groove 301, so that a gap is formed between the outer wall of the stator plate 300 and the inner wall of the shell 100, thereby enhancing the ventilation capacity and making the stator plate 300 slide more smoothly.

[0073] Optionally, the first support boss 101 is provided with a first ventilation slot 102, which extends along the axial direction of the housing 100 and penetrates the first support boss 101 and the side wall of the housing 100 along the radial direction of the housing 100. The first ventilation slot 102 is conducive to air circulation inside and outside the housing 100 and helps to reduce the weight of the housing 100.

[0074] Combination Figure 7 and Figure 8 In some embodiments of the present invention, the hub 200 includes a mounting cylinder 203, an external connection portion 204, and a connection portion. The mounting cylinder 203 is used to cooperate with the moving disk 400; the external connection portion 204 is located on the inner side of the mounting cylinder 203, and is used to connect with the non-output end of the rotating shaft 601 of the motor 600; one end of the connecting spoke 205 is connected to the inner side of the mounting cylinder 203, and the other end is connected to the external connection portion 204. The connecting spoke 205 is a conical structure with a radial dimension gradually decreasing from one end connected to the mounting cylinder 203 to one end connected to the external connection portion 204.

[0075] Specifically, the mounting cylinder 203 and the external connection part 204 are both cylindrical structures, the diameter of the mounting cylinder 203 is larger than the diameter of the external connection part 204, the mounting cylinder 203, the external connection part 204 and the housing 100 are coaxial, the mounting cylinder 203 is located inside the housing 100, and a transfer hole is provided in the middle of the end plate 104 of the housing 100 close to one end of the motor 600, the external connection part 204 is passed through the transfer hole and is suitable for circumferential rotation in the transfer hole, and the end of the external connection part 204 located outside the housing 100 is suitable for connecting to the rotating shaft 601 of the motor 600. The connecting spoke 205 is a conical cylindrical structure, the axis of the connecting spoke 205 coincides with the axis of the mounting cylinder 203 and the external connection part 204, and the end of the connecting spoke 205 with a smaller diameter faces the direction of the motor 600.

[0076] In this embodiment, the connecting spoke 205 is used to connect the mounting cylinder 203 and the external connection part 204, so that the connection path can be increased and the heat dissipation capacity can be improved. Optionally, the connecting spoke 205 includes a plurality of strip plates evenly arranged in the circumferential direction, one end of the strip plate is connected to the inner wall of the mounting cylinder 203, and the other end is connected to the outer wall or end of the external connection part 204. In this way, the weight of the connecting spoke 205 can be reduced, further achieving lightweight, and can facilitate the circulation of air and enhance the cooling effect.

[0077] In some embodiments of the present invention, a second supporting boss 201 is provided on the outer side of the disk hub 200. The second supporting boss 201 can be a long strip structure in the shape of a rectangle, trapezoid or triangle, and the second supporting boss 201 extends along the axial direction of the disk hub 200; an inner mating groove 401 is provided on the inner side of the moving disk 400, and the shape of the inner mating groove 401 is adapted to the shape of the second supporting boss 201. The moving disk 400 is sleeved on the outer side of the disk hub 200, and the inner mating groove 401 of the moving disk 400 is slidably fitted with the second supporting boss 201, and the outer side of the moving disk 400 is spaced apart from the inner wall of the shell 100.

[0078] Under the limiting action of the second supporting boss 201, the moving disk 400 can slide along the axial direction of the disk hub 200, and the moving disk 400 will not generate relative rotation with the disk hub 200. When the disk hub 200 rotates driven by the rotating shaft 601 of the motor 600, the moving disk 400 can rotate synchronously with the disk hub 200. When the stationary disk 300 applies a braking torque to the moving disk 400, the moving disk 400 can transmit the braking torque to the disk hub 200 through the second supporting boss 201.

[0079] It is understandable that the inner diameter of the stator plate 300 is greater than or equal to the distance from the axis of the hub 200 to the outer side of the second support boss 201, so that the inner side of the stator plate 300 and the second support boss 201 are slidingly fitted or a gap is formed to avoid interference between the stator plate 300 and the hub 200.

[0080] Optionally, the second supporting boss 201 is provided with a second ventilation slot 202 , the second ventilation slot 202 extends along the axial direction of the hub 200 , and openings are provided at both ends of the second ventilation slot 202 along the axial direction of the hub 200 .

[0081] By providing the second ventilation slot 202, air can pass through the second ventilation slot 202, thereby increasing the cooling effect and helping to reduce the weight of the disc hub 200, thereby reducing the energy consumption when the motor 600 drives the disc 400 hub 200 to rotate, and helping to further achieve the lightweight of the full disc brake device. In this embodiment, the cross-sectional shape of the second ventilation slot 202 can be a rectangle, a trapezoid, a triangle, etc., which is not specifically limited here.

[0082] Combination Figure 2 and Figure 6 In some embodiments of the present invention, the external connection part 204 is bolted to the rotating shaft 601 of the motor 600, and the spline 207 cooperates. Specifically, the external connection part 204 is provided with an axial through hole 206, and the end of the external connection part 204 located outside the housing 100 is provided with a spline 207. The external connection part 204 is fixedly connected to the rotating shaft 601 of the motor 600 by a bolt that passes through the through hole 206 and is threadedly connected to the rotating shaft 601 of the motor 600, and the spline 207 of the external connection part 204 and the spline 207 at the end of the rotating shaft 601 of the motor 600 are meshed with each other, thereby realizing axial movement limitation and circumferential rotation limitation at the same time, and ensuring stable transmission between the disk hub 200 and the rotating shaft 601 of the motor 600.

[0083] Combination Fig. 9 An embodiment of the present invention further provides a wheel drive system, comprising a motor 600, a gear box 700, an axle and the above-mentioned full disc brake device; wherein the motor 600 comprises a rotating shaft 601, the output end of the rotating shaft 601 is transmission-connected to the axle through the gear box 700, and the non-output end of the rotating shaft 601 is connected to the full disc brake device.

[0084] Optionally, the wheel drive system further includes a shaft sleeve 800, which is sleeved on the outside of the axle; one side of the motor 600 is elastically connected to the shaft sleeve 800. Specifically, a plurality of mounting rings 801 are provided on the outer wall of the shaft sleeve 800, and a mounting hole is provided on one side of the motor 600. The motor 600 is fixedly connected to the shaft sleeve 800 by bolts that penetrate the mounting ring 801 and the mounting hole at the same time. An elastic gasket is provided between the bolt and the shaft sleeve 800, and the gasket can be made of rubber or other materials, which is not specifically limited here.

[0085] In this embodiment, the axle and the bushing 800 are suitable for connecting to the wheel 900, and the specific connection structure thereof is not described in detail herein.

[0086] Optionally, the housing of the gearbox 700 is fixedly connected to the sleeve 800 by bolts, so that the motor 600, the sleeve 800 and the gearbox 700 form an integral body, so the gearbox 700 does not need to be provided with a separate suspension rod, and only a vertical suspension rod 602 is provided on the motor 600 for hanging the motor 600 and the gearbox 700, and balancing the traction and braking torque. Because the gearbox 700 does not need to be provided with a suspension rod, the structure of the housing of the pinion gearbox 700 can be greatly simplified, and the housing of the motor 600 and the gearbox 700 is simplified to an elastic integral type, which can reduce the relative displacement of the motor 600 shaft and the pinion shaft of the gearbox 700, which is beneficial to the selection of the coupling, saving the space of the entire wheel drive system, and being beneficial to the lightweighting of the wheel drive system. The gearbox 700 can also simplify the frame structure if the suspension rod is not provided.

[0087] An embodiment of the present invention further provides a rail vehicle, comprising the above-mentioned full-disc brake device, or comprising the above-mentioned wheel drive system.

[0088] An embodiment of the present invention further provides a braking method using the above-mentioned full-disc brake device, the method comprising:

[0089] A braking torque is applied to the non-output end of the rotating shaft 601 of the motor 600 , and the braking torque is transmitted to the gear box 700 through the rotating shaft 601 of the motor 600 , and is applied to the axle after being amplified by the gear box 700 .

[0090] Specifically, the brake cylinder 500 drives the static plate 300 and the dynamic plate 400 to slide along the axial direction of the housing 100, so that the static plate 300 and the dynamic plate 400 are in contact and friction, and a braking torque is applied to the rotating shaft 601 of the motor 600 through the disc hub 200. The braking torque is transmitted to the gear box 700 through the rotating shaft 601 of the motor 600, and then amplified by the gear box 700 and applied to the axle to achieve braking.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A full disc brake device, characterized in that: include: A housing (100) adapted to be fixedly connected to a housing of a motor (600); A disk hub (200) is rotatably disposed in the housing (100), and the disk hub (200) is fixedly connected to a non-output end of a rotating shaft (601) of the motor (600); The stator (300) is axially slidably connected to the housing (100) and forms an axial rotation limit with the housing (100); A moving disk (400) is disposed on the disk hub (200) and is adapted to rotate synchronously with the disk hub (200); and A brake cylinder (500) is used to drive the static disc (300) and the dynamic disc (400) to contact and cooperate with each other for braking.

2. The full disc brake device according to claim 1, characterized in that: The end of the housing (100) is fixedly connected to the outer shell of the motor (600) via a flange structure, and a heat-insulating gap is formed between the end plate (104) of the housing (100) and the outer shell of the motor (600).

3. The full disc brake device according to claim 1 or 2, characterized in that: At least one of the static disk (300) and the dynamic disk (400) is provided with two or more, and the static disk (300) and the dynamic disk (400) are arranged alternately.

4. The full disc brake device according to claim 1, characterized in that: A first supporting boss (101) is provided on the inner side of the housing (100), and the first supporting boss (101) extends along the axial direction of the housing (100); The stator plate (300) is sleeved on the outer side of the disk hub (200) and is spaced apart from the disk hub (200). An outer mating groove (301) is provided on the outer side of the stator plate (300), and the outer mating groove (301) is slidably engaged with the first supporting boss (101).

5. The full disc brake device according to claim 4, characterized in that: The first supporting boss (101) is provided with a first ventilation slot (102), the first ventilation slot (102) extending along the axial direction of the shell (100) and penetrating the first supporting boss (101) and the side wall of the shell (100) along the radial direction of the shell (100).

6. The full disc brake device according to claim 1, characterized in that: A second supporting boss (201) is provided on the outer side of the disk hub (200), and the second supporting boss (201) extends along the axial direction of the disk hub (200); An inner mating groove (401) is provided on the inner side of the movable plate (400), the movable plate (400) is sleeved on the outer side of the disk hub (200), and the inner mating groove (401) of the movable plate (400) is slidably engaged with the second supporting boss (201), and the outer side of the movable plate (400) is spaced apart from the inner wall of the shell (100).

7. The full disc brake device according to claim 6, characterized in that: The second supporting boss (201) is provided with a second ventilation slot (202), the second ventilation slot (202) extends along the axial direction of the disk hub (200), and the second ventilation slot (202) is provided with openings at both ends along the axial direction of the disk hub (200).

8. The full disc brake device according to claim 1, characterized in that: The hub (200) comprises: An installation cylinder (203) is used to cooperate with and connect to the moving disk (400); an external connection portion (204), located inside the mounting cylinder portion (203), and used for connecting to a non-output end of a rotating shaft (601) of the motor (600); and A connecting spoke (205) has one end connected to the inner side of the mounting cylinder (203) and the other end connected to the external connection portion (204). The connecting spoke (205) is a conical structure with a radial dimension gradually decreasing from one end connected to the mounting cylinder (203) to one end connected to the external connection portion (204).

9. The full disc brake device according to claim 8, characterized in that: The external connection part (204) is bolted to the rotating shaft (601) of the motor (600), and the splines (207) are matched.

10. A wheel drive system, characterized in that: It comprises a motor (600), a gear box (700), an axle, and the full disc brake device according to any one of claims 1 to 9; The motor (600) comprises a rotating shaft (601), the output end of the rotating shaft (601) is transmission-connected to the axle via the gear box (700), and the non-output end of the rotating shaft (601) is connected to the full-disc brake device.

11. The wheel drive system according to claim 10, characterized in that: It also includes a shaft sleeve (800), which is sleeved on the outside of the axle; one side of the motor (600) is elastically connected to the shaft sleeve (800).

12. A rail vehicle, characterized in that: The invention comprises a full disc brake device as claimed in any one of claims 1 to 9, or comprises a wheel drive system as claimed in claim 10 or 11.

13. A braking method using the full disc brake device according to any one of claims 1 to 9, characterized in that: include: A braking torque is applied to the non-output end of the rotating shaft (601) of the motor (600), and the braking torque is transmitted to the gear box (700) through the rotating shaft (601) of the motor (600), and is amplified by the gear box (700) and then applied to the axle.

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