Brake system and vehicle

Abstract

The invention discloses a braking system and a vehicle, and relates to the technical field of vehicle engineering. In the braking system, a braking main body comprises a hydraulic driving assembly and two braking clamping plates; at least part of the structure of the hydraulic driving assembly is arranged in the suspension frame, and the two output ends of the hydraulic driving assembly stretch out of the two ends of the suspension frame in the transverse direction correspondingly. The two brake clamping plates are arranged on the two sides of the suspension frame in the transverse direction and connected to the two output ends of the hydraulic driving assembly correspondingly. The bottom ends of the brake clamping plates are located below the suspension frame, and the hydraulic driving assembly can drive the two brake clamping plates to move at the same time, so that the bottom ends of the two brake clamping plates get close to or away from each other in the transverse direction. According to the braking system, the bottom ends of the two braking clamping plates can be close to each other so as to hold the track in a matched mode on the two sides of the track and conduct friction braking, at least part of the structure of the hydraulic driving assembly can be arranged in the suspension frame and can be connected to the upper structures of the braking clamping plates, and the requirement for occupying the external space of the suspension frame can be reduced while braking is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and particularly relates to a braking system and a vehicle. Background Art

[0002] In recent years, with the rapid development of rail transit, medium and low speed maglev has become an important development direction of future rail transit, and the problem of difficult emergency braking during levitation operation has always been one of the difficult problems in the maglev transportation system.

[0003] In an existing common braking system, there is a braking caliper and a hydraulic device on each side outside the suspension frame. The braking caliper has an upward jaw. Under the control of the hydraulic device, each jaw clamps from below the track respectively to achieve frictional braking. At this time, the hydraulic device and the braking caliper occupy a large space outside the suspension frame and on both sides of the track, increasing the layout difficulty of the braking system.

[0004] Therefore, how to reduce the occupied space outside the suspension frame by the braking system is a technical problem that those skilled in the art need to solve currently. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a braking system and a vehicle including the above braking system, and the braking system thereof can reduce the occupied space outside the suspension frame.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A braking system includes a suspension frame and a braking main body; the braking main body includes a hydraulic drive assembly and two braking splints; at least part of the structure of the hydraulic drive assembly is built in the suspension frame, and two output ends of the hydraulic drive assembly respectively extend out of both ends of the suspension frame transversely; the two braking splints are arranged on both sides of the suspension frame transversely and are respectively connected to the two output ends of the hydraulic drive assembly; the bottom end of the braking splint is located below the suspension frame, and the hydraulic drive assembly can drive the two braking splints to move simultaneously, so that the bottom ends of the two braking splints approach or move away from each other transversely.

[0008] Preferably, external brackets are respectively fixed on the laterally remote side surfaces of the suspension frame; the middle part of the braking splint is rotatably connected to a bracket shaft on the corresponding external bracket; the top end of the braking splint is rotatably connected to the output end of the hydraulic drive assembly; the hydraulic drive assembly is used to drive the braking splint to swing around the bracket shaft.

[0009] Preferably, the two ends of the suspension bracket in the transverse direction are respectively longitudinal beams. Longitudinal beam interfaces are respectively formed on the outer end faces of the two longitudinal beams in the transverse direction. The two output ends of the hydraulic drive assembly respectively pass through the two longitudinal beams in the transverse direction and extend out through the corresponding longitudinal beam interfaces, and are connected to the tops of the corresponding brake shoe plates; the external bracket includes a U-shaped frame and an inclined rod fixed to the bottom of the U-shaped frame. The U-shaped frame sleeves the periphery of the longitudinal beam interface and is fixed to the longitudinal beam. The inclined rod extends downward along the direction away from the suspension bracket in the transverse direction. The bracket shaft is fixed to the bottom end of the inclined rod.

[0010] Preferably, the suspension bracket includes two longitudinal beams and a cross beam fixedly connected between the two longitudinal beams; the hydraulic drive assembly includes a first hydraulic cylinder and a connecting rod assembly connected to the first hydraulic cylinder. The first hydraulic cylinder is built into the cross beam, the connecting rod assembly is built into the cross beam and the longitudinal beams, and the two brake shoe plates are respectively rotatably connected to the connecting rod assembly.

[0011] Preferably, the connecting rod assembly includes a power block, a fixed shaft and two transmission rods; the power block is rotatably connected to the cross beam through the fixed shaft, the power block is connected to the first hydraulic cylinder, one ends of the two transmission rods are respectively rotatably connected to the power block, and the other ends of the two transmission rods respectively extend out of the cross beam and are respectively rotatably connected to the two brake shoe plates.

[0012] Preferably, the first hydraulic cylinder includes a first cylinder body and a first piston rod. The first cylinder body is rotatably connected to the cross beam, the first piston rod performs telescopic movement at the bottom end of the first cylinder body, and the power block is rotatably connected to the bottom end of the first piston rod.

[0013] Preferably, the two ends of the suspension bracket in the transverse direction are respectively longitudinal beams. The hydraulic drive assembly includes two second hydraulic cylinders respectively arranged in the two longitudinal beams, and each second hydraulic cylinder is respectively connected to the two brake shoe plates.

[0014] Preferably, the two ends of the suspension bracket in the transverse direction are respectively longitudinal beams. A support arm for buckling on one side of the track in the transverse direction is respectively fixed on each longitudinal beam; and on each longitudinal beam, one support arm is arranged on each of the two sides of the brake shoe plate in the longitudinal direction.

[0015] Preferably, the brake shoe plate includes a shoe plate main body, a mounting seat detachably fixed to the bottom end of the shoe plate main body, and a wear plate fixed to the mounting seat. The shoe plate main body is connected to the hydraulic drive assembly; the wear plate is used for fitting the track for frictional braking.

[0016] A vehicle includes a track and a vehicle body. The vehicle body includes the above braking system. The bottoms of the two braking splints can approach each other on both sides in the transverse direction to clamp the track for frictional braking.

[0017] The braking system provided by the present invention includes a suspension frame and a braking body; the braking body includes a hydraulic drive assembly and two braking splints; at least part of the structure of the hydraulic drive assembly is built into the suspension frame, and the two output ends of the hydraulic drive assembly extend out of both ends of the suspension frame along the transverse direction respectively; the two braking splints are arranged on both sides of the suspension frame in the transverse direction and are respectively connected to the two output ends of the hydraulic drive assembly; the bottom ends of the braking splints are located below the suspension frame, and the hydraulic drive assembly can drive the two braking splints to move simultaneously, so that the bottom ends of the two braking splints approach or move away from each other in the transverse direction.

[0018] In such a braking system, the two braking splints use their bottom ends as the clamping ends and can approach each other to cooperate and hold the track tightly on both sides of the track for frictional braking, while the upper space can be used to connect the hydraulic drive assembly. At this time, at least part of the structure of the hydraulic drive assembly can be built into the suspension frame, and the output ends extend out of the suspension frame and are connected to the upper structures of the braking splints, which can improve the utilization rate of the internal space of the suspension frame while realizing braking, reduce the occupancy demand for the external space of the suspension frame, and simplify the structure of the braking system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0020] Figure 1 It is an axonometric view of the braking state of the first specific embodiment of the braking system provided by the present invention, in which part of the structure of the cross beam is hidden;

[0021] Figure 2 It is an axonometric view of the connection structure between the suspension frame and the braking splints of the first specific embodiment of the braking system provided by the present invention;

[0022] Figure 3 It is an axonometric view of the suspension frame of the first specific embodiment of the braking system provided by the present invention;

[0023] Figure 4 It is an axonometric view of the braking body of the first specific embodiment of the braking system provided by the present invention;

[0024] Figure 5 It is a sectional view of the braking state of the first specific embodiment of the braking system provided by the present invention;

[0025] Figure 6 Schematic diagram of the original state of the braking main body of the first specific embodiment of the braking system provided by the present invention when releasing the track;

[0026] Figure 7 Schematic diagram of the braking working state of the braking main body of the first specific embodiment of the braking system provided by the present invention when clamping the track;

[0027] Figure 8 Schematic diagram of the unilateral connection between the hydraulic drive assembly and the braking splint of the first specific embodiment of the braking system provided by the present invention;

[0028] Figure 9 Partial structure diagram of the hydraulic drive assembly of the first specific embodiment of the braking system provided by the present invention;

[0029] Figure 10 Bottom structure diagram of the braking splint of the first specific embodiment of the braking system provided by the present invention;

[0030] Figure 11 Bottom perspective view of the braking splint of the first specific embodiment of the braking system provided by the present invention;

[0031] Figure 12 Front view of the second specific embodiment of the braking system provided by the present invention.

[0032] Reference numerals:

[0033] Longitudinal beam 1, external bracket 11, U-shaped frame 111, diagonal rod 112, bracket shaft 12, longitudinal beam interface 13;

[0034] Cross beam 2, cross beam bracket 21;

[0035] Suspension frame 3, support arm 31;

[0036] Track 4;

[0037] Braking splint 5, splint main body 51, mounting seat 52, wear plate 53;

[0038] Hydraulic drive assembly 6, first hydraulic cylinder 61, first cylinder block 611, first piston rod 612, first spring 613, collar 614, power block 62, mounting shaft 621, connecting plate 622, fixed shaft 63, transmission rod 64, connecting column 641, connecting rod assembly 65, second hydraulic cylinder 66, second cylinder block 661, second piston rod 662, second spring 663;

[0039] Horizontal X, vertical Y. Detailed implementation manners

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0041] The core of the present invention is to provide a braking system and a vehicle including the above braking system, and the braking system can reduce the occupied space outside the suspension frame.

[0042] For a specific embodiment one of the braking system provided by the present invention, please refer to Figures 1 to 11 , which includes a suspension frame 3 and a braking main body.

[0043] As Figure 1 and Figure 2 shown, at least part of the structure of the hydraulic drive assembly 6 is built into the suspension frame 3, and the two output ends of the hydraulic drive assembly 6 extend out of the two ends of the suspension frame 3 along the transverse direction X respectively.

[0044] As Figure 4 shown, two braking splints 5 are arranged on both sides of the suspension frame 3 in the transverse direction X and are respectively connected to the two output ends of the hydraulic drive assembly 6. The bottom end of the braking splint 5 is located below the suspension frame 3, specifically below the edge of the suspension frame 3 in the transverse direction X, so as to be able to contact the track 4.

[0045] As Figure 6 and Figure 7 shown, the hydraulic drive assembly 6 can drive the two braking splints 5 to move simultaneously, so that the bottom ends of the two braking splints 5 approach or move away from each other along the transverse direction X. Among them, as Figure 1 and Figure 7 shown, after the bottom ends of the two braking splints 5 approach each other in the transverse direction X, the track 4 between them is clamped, generating frictional force for friction braking to achieve the braking function; as Figure 6 shown, after the bottom ends of the two braking splints 5 move away from each other in the transverse direction X, the track 4 can be released to release the braking.

[0046] It should be noted that the braking system in this embodiment can specifically be started only when the vehicle needs to stop at low speed or needs to perform emergency braking at high speed. At this time, the hydraulic drive assembly 6 drives the braking splints 5 on both sides of the track 4 to mechanically clamp the track 4 to achieve mechanical braking.

[0047] In the braking system of this embodiment, the two braking splints 5 use their bottom ends as the clamping ends and can approach each other to cooperate and tightly hold the rail 4 on both sides of the rail 4 for frictional braking. It can be applied to achieve the mechanical braking of the maglev vehicle, and the upper space can be used to connect the hydraulic drive assembly 6. At this time, at least part of the structure of the hydraulic drive assembly 6 can be built into the suspension frame 3, and the output end extends from the suspension frame 3 and is connected to the upper structure of the braking splint 5, which can improve the utilization rate of the internal space of the suspension frame 3 while achieving braking and reduce the occupancy requirement of the external space of the suspension frame 3.

[0048] Further, as Figure 4 and Figure 5 shown, external brackets 11 are respectively fixed on the laterally X-opposite sides of the suspension frame 3 for connecting the braking splints 5. Specifically, the two ends of the suspension frame 3 in the lateral X direction are longitudinal beams 1, the external brackets 11 are fixed on the longitudinal beams 1, and the bottom end of the braking splint 5 is located below the corresponding longitudinal beam 1. Among them, the middle part of the braking splint 5 is rotatably connected to the bracket shaft 12 on the corresponding external bracket 11. The top end of the braking splint 5 is rotatably connected to the output end of the hydraulic drive assembly 6. The hydraulic drive assembly 6 is used to drive the braking splint 5 to swing around the bracket shaft 12.

[0049] At this time, with the external bracket 11 as the fulcrum, each braking splint 5 forms a lever structure. When the hydraulic drive assembly 6 pushes the top end of each braking splint 5, it drives the bottom end of the corresponding braking splint 5 to move in the opposite direction around the bracket shaft 13. At this time, the hydraulic drive assembly 6 transmits the hydraulic pressure to the braking splint 5 and transmits the braking force generated by the braking splint 5 to the longitudinal beam 1 during braking. In addition, through the connection between the external bracket 11 and the braking splint 5, the stability of the movement of the braking splint 5 can also be improved.

[0050] In some embodiments, as Figures 2 to 5 shown, longitudinal beam interfaces 13 are respectively opened on the outer end faces of the two longitudinal beams 1 in the lateral X direction. The two output ends of the hydraulic drive assembly 6 respectively pass through the two longitudinal beams 1 along the lateral X direction and extend out through the corresponding longitudinal beam interfaces 13 and are connected to the top ends of the corresponding braking splints 5. At this time, the hydraulic drive assembly 6 at least utilizes the internal space of the longitudinal beam 1. Specifically, the longitudinal beam 1 is a box-shaped beam, which is convenient for utilizing the space in the longitudinal beam 1.

[0051] In some embodiments, as Figure 2 and Figure 4As shown, the external bracket 11 includes a U-shaped frame 111 and an inclined rod 112 fixed to the bottom of the U-shaped frame 111. The U-shaped frame 111 sleeved around the periphery of the longitudinal beam interface 13 is fixed to the longitudinal beam 1. The inclined rod 112 extends downward along the direction away from the suspension bracket 3 on the transverse X. The bracket shaft 12 is fixed to the bottom end of the inclined rod 112. At this time, the U-shaped frame 111 is arranged around the longitudinal beam interface 13, which can improve the structural strength of the longitudinal beam 1 near the longitudinal beam interface 13. Moreover, the setting of the inclined rod 112 can ensure the swing range of the brake shoe 5.

[0052] Of course, in other embodiments, in addition to the swinging motion mode, the brake shoe 5 can also perform a translational motion. Specifically, driven by the hydraulic drive assembly 6, it moves translationally along the transverse X to approach or move away from the track 4.

[0053] Furthermore, as Figure 4 and Figure 5 shown, the suspension bracket 3 includes two longitudinal beams 1 and a cross beam 2 fixedly connected between the two longitudinal beams 1. As Figure 1 shown, the longitudinal beam 1 extends along the longitudinal Y, the cross beam 2 extends along the transverse X, and the transverse X and the longitudinal Y can be perpendicular to each other. The cross beam 2 and the two longitudinal beams 1 form an I-shaped frame. The cross beam 2 and the longitudinal beam 1 can both be box-shaped beams, and both ends of the cross beam 2 communicate with the longitudinal beam 1. The cross beam 2 and the longitudinal beam 1 can be welded, and reinforcing ribs can be added at the butt joints to ensure the structural strength. Among them, the hydraulic drive assembly can only utilize the internal space of the longitudinal beam 1, or utilize the internal space of the longitudinal beam 1 and the internal space of the cross beam 2 at the same time.

[0054] Furthermore, as Figure 1 and Figure 9 shown, the hydraulic drive assembly 6 includes a first hydraulic cylinder 61 and a connecting rod assembly 65 connected to the first hydraulic cylinder 61. The first hydraulic cylinder 61 is built into the cross beam 2, the connecting rod assembly 65 is built into the cross beam 2 and the longitudinal beam 1, and the two brake shoes 5 are respectively rotatably connected to the connecting rod assembly 65.

[0055] At this time, the hydraulic drive assembly 6 is mainly located inside the cross beam 2 of the suspension bracket 3, which greatly saves the overall occupied space of the braking system. Through the cooperation of the connecting rod assembly 65 and the single first hydraulic cylinder 61, the simultaneous drive of the two brake shoes 5 can be realized, the setting of the drive equipment can be reduced, and moreover, only a single hydraulic cylinder is required for a single suspension bracket 3, which can reduce the occupied space, weight and failure rate of the hydraulic system. There is no need to perform coordinated control on multiple hydraulic cylinders, the complexity of the system is reduced, the occupied space and weight are greatly reduced, and at the same time, the required control is also simplified.

[0056] In some embodiments, as Figures 4 to 6As shown in the figure, the connecting rod assembly 65 includes a power block 62, a fixed shaft 63, and two transmission rods 64. The power block 62 is rotatably connected to the cross beam 2 through the fixed shaft 63. The power block 62 is connected to the first hydraulic cylinder 61. One end of each of the two transmission rods 64 is rotatably connected to the power block 62, and the other ends of the two transmission rods 64 respectively extend out of the cross beam 2 and are respectively rotatably connected to the two brake shoes 5. Specifically, one end of the transmission rod 64 serves as an output end of the hydraulic drive assembly and extends out from the longitudinal beam interface 13 of the longitudinal beam 1 for the transmission rod 64 to connect to the brake shoe 5 and transmit motion.

[0057] At this time, the power block 62 forms a lever structure with the fixed shaft 63 as the fulcrum. Among them, the first hydraulic cylinder 61 is connected to the first connection point a of the power block 62, and the two transmission rods 64 are respectively connected to the two second connection points b of the power block 62. The first connection point a of the power block 62 and one second connection point b form a lever structure relative to the fixed shaft 63, and the first connection point a of the power block 62 and the other second connection point b form another lever structure relative to the fixed shaft 63. When the first hydraulic cylinder 61 drives the power block 62 to swing around the fixed shaft 63, the two second connection points b move simultaneously, driving the two transmission rods 64 to move, thereby driving the two brake shoes 5 to move. The structure of this kind of connecting rod assembly 65 is simple and can ensure the synchronization of the movement of the two brake shoes 5.

[0058] In addition, outside the suspension frame, the external support 11 is fixed to the longitudinal beam 1 and is connected to the brake shoe 5 through the support shaft 63. The force from the transmission rod 64 is transmitted to the brake shoe 5 through the lever principle to achieve braking, and the longitudinal Y frictional force generated during braking is transmitted to the longitudinal beam 1 through the support shaft 63 of the external support 11, without the need to additionally arrange a brake pull rod to transmit the longitudinal force.

[0059] It should be noted that during braking, the two transmission rods 64 connected to the power block 62 are not parallel to the ground. The clamping surfaces of the two brake shoes 5 are in contact with the track 4 at an angle when clamping the track 4, maintaining surface contact; when not clamping the track 4, the clamping surfaces of the brake shoes 5 have a small angle with the side of the track 4, maintaining a certain gap.

[0060] In some embodiments, as Figure 9 shown, the power block 62 is a quadrilateral block with perpendicular diagonals. Among them, the fixed shaft 63 and the first hydraulic cylinder 61 are connected to two opposite corners of the quadrilateral block, and the two transmission rods 64 are respectively connected to the other two opposite corners of the quadrilateral block to ensure the consistency of the movement distances of the two transmission rods 64, so as to ensure that the two brake shoes 5 can simultaneously fit or move away from the track 4.

[0061] In some embodiments, according to the principle of balance of lever torque, the length of the force arm can be reasonably designed so that the hydraulic pressure of the first hydraulic cylinder 61 in the middle is effectively amplified to the braking force of the braking splints 5 on both sides. For example, as Figure 9 shown, the two diagonals of the quadrilateral block are the first diagonal and the second diagonal respectively. The length of the first diagonal is greater than that of the second diagonal. The two transmission rods 64 are respectively connected to both ends of the second diagonal to shorten the stroke of the transmission rod 64, improve the braking efficiency, and ensure the distance that the first hydraulic cylinder 61 can provide for the movement of the power block 62. In addition, the intersection of the first diagonal and the second diagonal is close to the first end of the first diagonal, and the fixed shaft 63 is arranged at this first end.

[0062] In some embodiments, as Figure 9 shown, the power block 62 includes two connecting plates 622 arranged in sequence in the longitudinal direction Y. One end of each transmission rod 64 is clamped between the two connecting plates 622 and rotatably connected to the connecting column 641 between the two connecting plates 622 to ensure the reliability of the connection of the transmission rod 64. In addition, the fixed shaft 63 penetrates through the two connecting plates 622 along the longitudinal direction Y and is rotatably connected to the two connecting plates 622, and both ends of the fixed shaft 63 are fixed to the cross beam 2.

[0063] In some embodiments, as Figure 9 shown, in order to improve the weight reduction effect, weight reduction holes can be respectively arranged on each connecting plate 622.

[0064] In some embodiments, as Figure 1 shown, for the convenience of the assembly of the hydraulic drive assembly in the cross beam 2, the braking main body further includes a cross beam bracket 21. Specifically, the fixed shaft 63 is fixed on the cross beam bracket 21, and specifically, it can be inserted and connected, and the part of the fixed shaft 63 extending out of the cross beam bracket 21 can be inserted into the cross beam 2. In addition, the cross beam bracket 21 is a rectangular frame and penetrates along the transverse direction X. The cross beam bracket 21 sleeves the part where the power block 62 is connected to the fixed shaft 63. In addition, the top between the cross beams 21 can be hoisted in the cross beam 2 by bolts.

[0065] Furthermore, as Figures 6 to 9 shown, the first hydraulic cylinder 61 includes a first cylinder body 611 and a first piston rod 612. The first cylinder body 611 is rotatably connected to the cross beam 2. The first piston rod 612 performs telescopic movement at the bottom end of the first cylinder body 611. The power block 62 is rotatably connected to the bottom end of the first piston rod 612. At this time, the first hydraulic cylinder 61 generally outputs a vertical movement, and can drive the transverse X movement of the two braking splints 5 with a smaller force through the lever principle.

[0066] In some embodiments, as Figure 9As shown, a mounting shaft 621 parallel to the fixed shaft 63 is fixedly arranged outside the power block 62. The bottom end of the first piston rod 612 has a collar 614, and the collar 614 is rotatably sleeved on the mounting shaft 621, which is convenient for assembly.

[0067] In some embodiments, as Figure 9 shown, a first spring 613 can also be sleeved on the first piston rod 612, and can be externally disposed outside the first cylinder block 611. The first spring 613 is used to drive the first piston rod 612 to retract and reset or buffer during the retraction process. Specifically, as Figure 6 shown, for the two brake shoe plates 5, the normal state is the state of releasing the track 4, that is, the bottom ends of the two brake shoe plates 5 move away from each other in the transverse direction X to a set position where the track 4 is not clamped. At this time, through the first spring 613 on the first piston rod 612 of the first hydraulic cylinder 61, the first piston rod 612 and the power block 62 can be positioned, so as to position the brake shoe plates 5 through the transmission rod 64, ensuring that the brake shoe plates 5 do not contact the rail surface of the track 4.

[0068] Of course, in other embodiments, as Figure 12 shown, the hydraulic drive assembly 6 can also be arranged to include two second hydraulic cylinders 66. The two second hydraulic cylinders 66 are respectively arranged in the two longitudinal beams 1, and each second hydraulic cylinder 66 is respectively connected to the two brake shoe plates 5.

[0069] At this time, only the space in the longitudinal beam 1 can be utilized for installing the hydraulic drive assembly 6. During braking, the two second hydraulic cylinders 66 cooperate to control. The piston rods of the two second hydraulic cylinders 66 are respectively the two output ends of the hydraulic drive assembly. Through the synchronous movement of the two first hydraulic cylinders 61, the approach and separation of the bottom ends of the two brake shoe plates 5 can be realized.

[0070] In some embodiments, as Figure 12 shown, the two second hydraulic cylinders 66 can be arranged at the same position in the two longitudinal beams 1.

[0071] In some embodiments, the stroke direction of the piston rod of the second hydraulic cylinder 66 is generally along the transverse direction X. By controlling the driving of the piston rods of the two second hydraulic cylinders 66 to retract simultaneously, the two brake shoe plates 5 on both sides in the transverse direction X can be simultaneously tightened against the track 4.

[0072] Specifically, the second hydraulic cylinder 66 includes a second cylinder block 661 and a second piston rod 662. The second cylinder block 661 is rotatably connected to the cross beam 2, and the second piston rod 662 performs telescopic movement at a transverse port of the second cylinder block 661.

[0073] In addition, a second spring 663 can also be sleeved on the second piston rod 662 and can be externally disposed outside the second cylinder block 661. The second spring 663 is used to drive the second piston rod 662 to retract and reset or buffer during the retraction process. Specifically, for the two brake shoes 5, the normal state is the state of releasing the track 4, that is, the bottom ends of the two brake shoes 5 move away from each other in the transverse direction X to a set position where the track 4 is not clamped. At this time, the second spring 663 on the second piston rod 662 of the second hydraulic cylinder 66 can position the second piston rod 662 and the power block 62, so as to position the brake shoes 5 through the transmission rod 64, ensuring that the brake shoes 5 do not contact the rail surface of the track 4.

[0074] Further, as Figure 1 shown, the suspension bracket 3 further includes a support arm 31. The maglev module can be arranged on the support arm 31 and is used to cooperate with the track 4 to form a hugging-rail maglev system. Among them, a support arm 31 for buckling on one side of the track 4 in the transverse direction 4 is respectively fixed on each longitudinal beam 1. And on each longitudinal beam 1, a support arm 31 is provided on each side of the brake shoes 5 in the longitudinal direction Y. In addition, the track 4 can be of the F-type track system or other track systems.

[0075] Further, as Figure 4 , Figure 10 and Figure 11 shown, the brake shoe 5 includes a shoe body 51, a mounting seat 52 detachably fixed to the bottom end of the shoe body 51, and a wear plate 53 fixed to the mounting seat 52. Specifically, the wear plate 53 and the shoe body 51 are respectively located on both sides of the mounting seat 52 and are respectively bolted to the mounting seat 52. The mounting seat 52 is specifically a metal seat, and the wear plate 53 is a carbon-ceramic composite friction block. The shoe body 51 is connected to the hydraulic drive assembly 6. The wear plate 53 is provided with a clamping surface for fitting the track 4 for frictional braking.

[0076] In some embodiments, as Figure 5 shown, the shoe body 51 is L-shaped, specifically including a vertical rod and a horizontal rod fixed to the bottom end of the vertical rod. The horizontal rod is arranged on the side of the vertical rod in the transverse direction X close to the suspension bracket 3. The mounting seat 52 is fixedly connected to the free end of the horizontal rod, and the top end of the vertical rod is rotatably connected to the output end of the hydraulic drive assembly.

[0077] At this time, the brake shoe 5 uses a wear-resistant material as the wear plate 53, and realizes frictional braking by the surface contact of the wear plate 53 with the track 4. When the hydraulic drive assembly 6 is started, the two brake shoes 5 work simultaneously. After clamping, the mechanical braking effect is achieved through the frictional force between the wear plate 53 and the rail surface. In addition, the wear plate 53 and the mounting seat 52 can be replaced in time according to the wear degree.

[0078] In the embodiment of the present invention, the provided braking system can be applied to the mechanical braking of a track-holding maglev vehicle. By adopting the method of a single suspension frame and a single set of hydraulic braking system, through the hydraulic driving component 6 located in the middle of the suspension frame 3, as well as the connecting rod component 65 and the moment balance principle, the hydraulic pressure can be transmitted to the brake shoes 5 on both sides of the track 4 and amplified into a clamping force, and the track 4 is clamped on both sides in the transverse direction X to generate frictional force, so as to achieve the braking effect.

[0079] In addition to the above braking system, the present invention also provides a vehicle, specifically a rail vehicle, and more specifically a medium and low speed maglev vehicle. The vehicle includes a braking system. The braking system can specifically be the braking system provided in any of the above embodiments, and the beneficial effects can be referred to the respective above embodiments accordingly. For the structures of other parts of the vehicle, please refer to the prior art and will not be elaborated herein.

[0080] Specifically, the vehicle includes a track 4 and a vehicle body. The vehicle body includes a braking system. The bottoms of the two brake shoes 5 can approach each other on both sides in the transverse direction X to clamp the track 4 for frictional braking.

[0081] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. In addition, in the description of the present invention, unless otherwise stated, the meanings of "a plurality of", "a plurality of roots", and "a plurality of groups" are two or more.

[0082] The orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0083] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0084] The various embodiments in this specification are described in a progressive manner. The key points of each embodiment are the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0085] The braking system and vehicle provided by the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A braking system, characterized in that, It includes a suspension frame (3) and a braking body; the braking body includes a hydraulic drive assembly (6) and two braking splints (5); at least part of the structure of the hydraulic drive assembly (6) is built into the suspension frame (3), and two output ends of the hydraulic drive assembly (6) extend out of both ends of the suspension frame (3) along the transverse direction (X); the two braking splints (5) are arranged on both sides of the suspension frame (3) in the transverse direction (X) and are respectively connected to the two output ends of the hydraulic drive assembly (6); the bottom ends of the braking splints (5) are located below the suspension frame (3), and the hydraulic drive assembly (6) can drive the two braking splints (5) to move simultaneously, so that the bottom ends of the two braking splints (5) approach or move away from each other along the transverse direction (X).

2. The braking system according to claim 1, characterized in that, External brackets (11) are respectively fixed on the laterally (X) remote side surfaces of the suspension frame (3); the middle parts of the braking splints (5) are rotatably connected to a bracket shaft (12) on the corresponding external bracket (11); the top ends of the braking splints (5) are rotatably connected to the output ends of the hydraulic drive assembly (6); the hydraulic drive assembly (6) is used to drive the braking splints (5) to swing around the bracket shaft (12).

3. The braking system according to claim 2, characterized in that, Both ends of the suspension frame (3) in the transverse direction (X) are longitudinal beams (1), longitudinal beam interfaces (13) are respectively opened on the outer end surfaces of the two longitudinal beams (1) in the transverse direction (X), the two output ends of the hydraulic drive assembly (6) respectively pass through the two longitudinal beams (1) along the transverse direction (X) and extend out through the corresponding longitudinal beam interfaces (13), and are connected to the top ends of the corresponding braking splints (5); the external bracket (11) includes a U-shaped frame (111) and an inclined rod (112) fixed to the bottom of the U-shaped frame (111), the U-shaped frame (111) sleeved around the periphery of the longitudinal beam interface (13) and is fixed to the longitudinal beam (1), the inclined rod (112) extends downward along the direction away from the suspension frame (3) in the transverse direction (X), and the bracket shaft (12) is fixed to the bottom end of the inclined rod (112).

4. The braking system according to claim 2, characterized in that, The suspension frame (3) includes two longitudinal beams (1) and a cross beam (2) fixedly connected between the two longitudinal beams (1); the hydraulic drive assembly (6) includes a first hydraulic cylinder (61) and a connecting rod assembly (65) connected to the first hydraulic cylinder (61), the first hydraulic cylinder (61) is built into the cross beam (2), the connecting rod assembly (65) is built into the cross beam (2) and the longitudinal beam (1), and the two braking splints (5) are respectively rotatably connected to the connecting rod assembly (65).

5. The braking system according to claim 4, wherein, The connecting rod assembly (65) includes a power block (62), a fixed shaft (63) and two transmission rods (64); the power block (62) is rotatably connected to the cross beam (2) through the fixed shaft (63), the power block (62) is connected to the first hydraulic cylinder (61), one ends of the two transmission rods (64) are rotatably connected to the power block (62), and the other ends of the two transmission rods (64) respectively extend out of the cross beam (2) and are respectively rotatably connected to the two brake shoe plates (5).

6. The braking system according to claim 5, characterized in that, The first hydraulic cylinder (61) includes a first cylinder block (611) and a first piston rod (612), the first cylinder block (611) is rotatably connected to the cross beam (2), the first piston rod (612) performs telescopic movement at the bottom end of the first cylinder block (611), and the power block (62) is rotatably connected to the bottom end of the first piston rod (612).

7. The braking system according to claim 1, characterized in that, The two ends of the suspension frame (3) in the transverse direction (X) are respectively longitudinal beams (1), and the hydraulic drive assembly (6) includes two second hydraulic cylinders (66) respectively arranged in the two longitudinal beams (1), and each of the second hydraulic cylinders (66) is respectively connected to the two brake shoe plates (5).

8. The braking system according to any one of claims 1, characterized in that, The two ends of the suspension frame (3) in the transverse direction (X) are respectively longitudinal beams (1), and a support arm (31) for buckling on one side of the track (4) in the transverse direction (4) is respectively fixed on each of the longitudinal beams (1); and on each of the longitudinal beams (1), one support arm (31) is arranged on each of the two sides of the brake shoe plate (5) in the longitudinal direction (Y).

9. The braking system according to any one of claims 1 to 8, characterized in that The brake shoe plate (5) includes a shoe plate main body (51), a mounting seat (52) detachably fixed to the bottom end of the shoe plate main body (51) and a wear plate (53) fixed to the mounting seat (52), and the shoe plate main body (51) is connected to the hydraulic drive assembly (6); the wear plate (53) is used for fitting against the track (4) for frictional braking.

10. A vehicle, characterized in that, It includes a track (4) and a vehicle body, the vehicle body includes the braking system according to any one of claims 1 to 9, and the bottom ends of the two brake shoe plates (5) can approach each other on both sides in the transverse direction (X) to clamp the track (4) for frictional braking.

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