Brake beam module and brake structure containing same

Abstract

The present invention discloses a brake beam module and a brake structure containing the same, comprising an assembly beam, a connecting rod, a brake cylinder, and a cooler. The end of the assembly beam is rotatably connected to a wheel frame, and a wheel is installed on the surface of the wheel frame. When the wheel is braked, the first electrically controlled valve is opened, so that the high-pressure gas in the first gas tank controls the brake cylinder to contract, and the brake cylinder drives the brake seat and the brake pad to fit onto the wheel for braking. The brake pad contacts the rolling surface of the wheel with a large contact area, so that the wheel can stop rotating quickly to shorten the braking distance, and the brake pad and the wheel are cooled to avoid the problem of thermal attenuation of the brake pad. When the wheel is braked continuously, good braking force is maintained, and the brake pad clamps the wheel at two symmetrical points on the wheel, so that the friction resistance applied to the wheel is more uniform, and when the wheel is braked, the wheel is prevented from being subjected to different braking forces.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicle braking, in particular to a braking beam module and a braking structure containing the same. Background Art

[0002] Currently, railcars typically use pneumatic brake systems to stop, with the individual brakes on each railcar applied accordingly. When the train's brakes are released, electrically controlled valves adjust the brake pipe pressure, releasing the individual brakes on each railcar accordingly, allowing the railcar to move.

[0003] The braking system of a railcar includes a cylinder brake, a foundation brake, and a hand brake. The cylinder brake is mainly used when the freight car is slowing down or stopping during operation, and the locomotive provides compressed air to brake the cylinder brake. The hand brake is mainly used for vehicle marshaling, shunting, or parking operations. At this time, since there is no locomotive coupling and no compressed air source, the hand brake is used for braking during shunting operations or vehicle parking. The function of the foundation brake is to transmit the thrust of the cylinder brake or hand brake, and then increase this thrust to a certain multiple and transmit it to each brake shoe, so that it presses the wheel to produce a braking effect. If the cylinder of the existing railcar cylinder brake fails during use, the railcar cannot be braked in time, which can easily cause wheel wear and affect the normal operation of the railcar.

[0004] In order to solve the above-mentioned problems, the existing patent number CN114475691A proposes a solution for a rail vehicle braking system, including a basic braking device, and a manual braking device and an air braking device respectively connected to the basic braking device, the air braking device including: an air storage assembly connected to the basic braking device; a control assembly respectively connected to the air storage assembly and the basic braking device, the control assembly having a braking state for controlling the air storage assembly to supply air to the basic braking device, and a driving state for controlling the basic braking device to return air to the air storage assembly; and an emergency starting assembly connected to the control assembly, the emergency starting assembly being used to control the control assembly to switch from the braking state to the driving state.

[0005] However, the above solution solves the problem of not being able to release the brakes of the rail vehicle in time, but there are some shortcomings. The friction between the two brake pads used and the vehicle is used to achieve braking. The brake pads are clamped on the side of the wheel. Since the thickness of the side of the wheel of the rail vehicle that can be rubbed is between three and five centimeters, the contact area between the brake pads and the wheel is limited, and the clamping force applied by the brake pads to the wheel is limited, resulting in a long braking distance for the rail vehicle and certain shortcomings in braking ability. In addition, the long braking distance causes the brake pads to rub against the wheel for a longer time, resulting in a continuous increase in the temperature of the brake pads and the wheel, which is prone to the problem of brake thermal decay, resulting in a reduction in braking force. Summary of the Invention

[0006] The object of the present invention is to provide a brake beam module and a brake structure containing the same, so as to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a brake beam module, comprising an assembly beam, an end of the assembly beam being rotatably connected to a wheel frame, a wheel being mounted on a surface of the wheel frame;

[0008] A connecting rod is rotatably connected to the wheel frame, and pull rods are installed at both ends of the connecting rod. The ends of the pull rods are rotatably connected to the brake seat. A brake pad is installed inside the brake seat. The brake pad and the brake seat are connected by screws to facilitate replacement of the brake pad. A sliding rod connected to the wheel frame is inserted into the surface of the brake seat, and the brake seat and the sliding rod are slidably connected;

[0009] A brake cylinder is placed on the surface of the wheel frame and is connected to a brake seat. The brake cylinder drives the brake seat close to the wheel to achieve a braking stop of the wheel;

[0010] A cooler is placed on the surface of the brake seat and is located on the side of the wheel and the brake pad to achieve cooling of the wheel and the brake pad.

[0011] Furthermore, a connecting portion is provided in the middle of the assembly beam, and three groups of connecting holes are provided on the surface of the connecting portion. The width of the connecting portion is smaller than the width of the left and right parts of the assembly beam, so that the assembly beam has a larger installation area.

[0012] Furthermore, an air pump and a first air tank and a second air tank connected to the air pump are installed on the surface of the assembly beam. The first air tank and the second air tank are connected to the brake cylinder and the cooler respectively. Two groups of air pumps can be set up, and the two work independently, but the braking capacity and cooling capacity do not affect each other.

[0013] Furthermore, the air outlets of the first and second air tanks are respectively equipped with a first electrically controlled valve and a second electrically controlled valve, which can control the air outlet of the first and second air tanks and release the air from the brake cylinder.

[0014] Furthermore, a resetter is installed on the surface of the slide rod, and the end of the resetter is against the side of the brake seat. The resetter can push the brake seat away from the wheel, so that the wheel is in a free rotation state.

[0015] Furthermore, a connecting shaft is provided in the middle of the connecting rod surface, which allows the connecting rod to rotate. The lower end of the connecting shaft is connected to the wheel frame. Insert shafts are provided at both ends of the connecting rod, and the insert shafts are connected to the pull rods. The pull rods are symmetrically arranged with the connecting rod as the center.

[0016] The present invention provides a brake structure, which includes the above-mentioned brake beam module;

[0017] The braking structure also includes a connecting base, the end of the connecting base is provided with a clamping head, the surface of the clamping head has a groove, the clamping head is installed on the surface of the connecting part, and the clamping head and the connecting part are fixed by screws.

[0018] Furthermore, the connecting base has side beams, which are arranged at an angle, and the side beams are integrally formed with the connecting base. The connecting bottom is supported by steel to ensure that the connecting bottom has sufficient supporting strength.

[0019] Furthermore, positioning holes are provided on the surface of the connecting base, a carriage is mounted on the surface of the connecting base, and wheels are placed on laid tracks so that the carriage can move.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The equipped air pump is used to inflate the first and second air tanks through corresponding pipelines. The internal air pressure of the first and second air tanks increases when the air is inflated. When the wheel is braked, the first electronically controlled valve opens, so that the high-pressure gas in the first air tank controls the contraction of the brake cylinder. The brake cylinder drives the brake seat and the brake pad to fit onto the wheel to stop the vehicle. The brake pad contacts the rolling surface of the wheel, and the contact area is large, so that the wheel can stop rotating quickly and shorten the braking distance.

[0022] (2) The two sets of brake seats move simultaneously through the connecting rod and the pull rod, so that the brake pads clamp the wheels at two symmetrical points on the wheels, making the friction resistance on the wheels more uniform. When braking the wheels, the wheels are prevented from being subjected to different braking forces and preventing wheel deviation.

[0023] (3) The second gas tank is controlled by the second electric control valve to supply high-pressure gas to the cooler. When the wheel is braked, the temperature of the brake pad and the wheel rises rapidly due to the friction between the wheel and the brake pad. At this time, the cooler sprays high-speed air onto the brake pad and the wheel to cool the brake pad and the wheel, thereby avoiding the problem of thermal attenuation of the brake pad. When the wheel is continuously braked, while maintaining good braking force, the braking distance can also be shortened.

[0024] (4) The side beams connecting the base are tilted to increase the support height of the carriage, making it easier to install other components on the lower surface of the carriage. The positioning holes can be used to achieve precise alignment and connection with the carriage, thereby improving the installation accuracy and making the operation simple and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A top view of the present invention;

[0026] Figure 2This is a schematic structural diagram of the connection between the brake seat and the connecting rod of the present invention;

[0027] Figure 3 This is a structural diagram of the connection base of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the assembly beam of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the connection between the base and the carriage of the present invention.

[0030] In the figure: 1. Connecting base; 2. Clamping head; 3. Positioning hole; 4. Assembly beam; 5. Air pump; 6. First air tank; 7. Second air tank; 8. Wheel; 9. Brake seat; 10. First electric control valve; 11. Second electric control valve; 12. Side beam; 13. Wheel frame; 14. Brake cylinder; 15. Carriage; 17. Brake pad; 18. Connecting shaft; 19. Connecting rod; 20. Insert shaft; 21. Pull rod; 22. Cooler; 23. Resetter; 24. Sliding rod; 25. Connecting part; 26. Connecting hole. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1 to 5 The present invention provides a technical solution: a brake beam module, comprising an assembly beam 4, the end of the assembly beam 4 is rotatably connected to a wheel frame 13, and a wheel 8 is mounted on the surface of the wheel frame 13;

[0033] The width of the middle portion of the assembly beam 4 is smaller than the width of the two sides, so that the first gas tank 6 and the second gas tank 7 can be installed side by side, providing sufficient installation area;

[0034] Connecting rod 19, said connecting rod 19 is rotatably connected to the wheel frame 13, and pull rods 21 are installed at both ends of said connecting rod 19, and the ends of said pull rods 21 are rotatably connected to the brake seat 9, and the brake shoe 17 is installed inside the brake seat 9. A sliding rod 24 connected to the wheel frame 13 is inserted on the surface of the brake seat 9;

[0035] The connection between the connecting rod 19 and the pull rod 21 is set at a certain angle. When the connecting rod 19 rotates, it can drive the two sets of pull rods 21 to move simultaneously. The pull rods 21 drive the corresponding brake seats 9 to move closer to each other, so that the brake pads 17 clamp the wheels 8;

[0036] The brake pad 17 is arranged in an arc shape, and its curvature matches the wheel 8 to increase the contact area between the brake pad 17 and the wheel 8;

[0037] The brake cylinder 14 is placed on the surface of the wheel carrier 13. The wheel carrier 13 and the brake cylinder 14 are not fixed to each other. The brake cylinder 14 is connected to the brake seat 9. The brake cylinder 14 drives the brake seat 9 to approach the wheel 8 to achieve the braking of the wheel 8;

[0038] The cooler 22 is placed on the surface of the brake seat 9 and is located on the side of the wheel 8 and the brake pad 17 to achieve cooling of the wheel 8 and the brake pad 17.

[0039] Specific examples Figure 4 As shown, a connecting portion 25 is provided in the middle of the assembly beam 4, and three groups of connecting holes 26 are provided on the surface of the connecting portion 25. When the connecting portion 25 is placed into the chuck 2, the connecting holes 26 are aligned with the through holes on the surface of the chuck 2. Then, screws are passed through the connecting holes 26, and nuts are screwed onto the screws to connect the connecting portion 25 to the chuck 2. The three groups of connecting holes 26 use three groups of screws, which can limit the movement of the connecting portion 25 and improve the stability after assembly.

[0040] In this embodiment, the assembly beam 4 is made of steel to ensure that the assembly beam 4 has sufficient supporting strength. Other materials can also be selected according to the loading capacity of the carriage 15. The number of connecting holes 26 can be changed according to the size of the connecting part 25. The actual number can be determined according to the specific usage. However, at least two groups of connecting holes 26 should be provided to prevent the connecting part 25 from loosening. The use of screws and nuts makes the connection operation simple and easy, and the processing of the connecting holes 26 is also relatively convenient.

[0041] Specific examples Figure 1 and Figure 2 As shown, an air pump 5 and a first air tank 6 and a second air tank 7 connected to the air pump 5 are installed on the surface of the assembly beam 4. The first air tank 6 and the second air tank 7 are connected to the brake cylinder 14 and the cooler 22 respectively. The number of air pumps 5 is the same as the number of air tanks, ensuring that the number of air pumps 5 and the air pressure inside the first air tank 6 and the second air tank 7 are sufficient.

[0042] In this embodiment, a connecting plate is provided on the surface of the first gas tank 6 and the second gas tank 7, and a circular hole is provided on the connecting plate. A screw hole corresponding to the position of the circular hole is provided on the assembly beam 4. The first gas tank 6 and the second gas tank 7 can be connected to the assembly beam 4 using screws. The air pump 5 is connected to the first gas tank 6 and the second gas tank 7 through a pipeline. The air pump 5 adopts a double-chamber air pump, which can improve the efficiency of inflation and ensure that the internal air pressure of the first gas tank 6 and the second gas tank 7 is sufficient. An electronic pressure gauge can also be set on the first gas tank 6 and the second gas tank 7. The electronic pressure gauge is linked to the air pump 5. When the air pressure reaches a preset value, the air pump 5 stops working. When the first gas tank 6 and the second gas tank 7 are lower than the preset value, the air pump 5 is started immediately.

[0043] Specific examples Figure 1 As shown, the air outlets of the first gas tank 6 and the second gas tank 7 are respectively installed with the first electrically controlled valve 10 and the second electrically controlled valve 11. The first electrically controlled valve 10 and the second electrically controlled valve 11 are linked with the braking system of the rail vehicle. By controlling the first electrically controlled valve 10 and the second electrically controlled valve 11, the high-pressure gas in the first gas tank 6 and the second gas tank 7 is released. The first gas tank 6 controls the operation of the brake cylinder 14, and the first gas tank 6 provides high-speed flowing air for the cooler 22.

[0044] Specific examples Figure 2 As shown, a resetter 23 is installed on the surface of the slide bar 24, and the end of the resetter 23 is against the side of the brake seat 9. The resetter 23 has elastic force, which pushes the brake seat 9 away from the wheel 8 to ensure that the brake pad 17 does not contact the wheel 8. When the brake is not applied, the rotation of the wheel 8 is not disturbed.

[0045] In this embodiment, the resetter 23 can be set in one group, or the resetter 23 can be set in both groups of slide rods 24, as long as the elastic force of the resetter 23 is sufficient to push the brake seat 9. Since the two groups of connecting rods 19 are linked through the connecting rod 19 and the pull rod 21, setting up one group of resetter 23 can also push the two groups of brake seats 9 to move at the same time.

[0046] Specific examples Figure 4 As shown, a connecting shaft 18 is provided in the middle of the surface of the connecting rod 19, and the lower end of the connecting shaft 18 is connected to the wheel frame 13. The connecting shaft 18 connects the connecting rod 19 and the wheel frame 13, and allows the connecting rod 19 to rotate. An insertion shaft 20 is provided at both ends of the connecting rod 19, and the insertion shaft 20 is connected to the pull rod 21. The surfaces of the connecting rod 19 and the pull rod 21 are provided with round holes matching the insertion shaft 20, so that the insertion shaft 20 can smoothly connect the connecting rod 19 and the pull rod 21.

[0047] The present invention also provides a brake structure, which includes the above-mentioned brake beam module;

[0048] The braking structure also includes a connecting base 1, which can be in the shape of square, rectangle, circle, etc., to ensure that the connecting base 1 can be smoothly connected to the carriage 15. A clamping head 2 is provided at the end of the connecting base 1, and the clamping head 2 is installed on the surface of the connecting part 25. The cross-section of the clamping head 2 is concave, so that the connecting part 25 is clamped, and the length of the connecting part 25 corresponds to the size of the clamping head 2.

[0049] Specific examples Figure 3 As shown, the connecting base 1 has a side beam 12, which is inclined and integrally formed with the connecting base 1. The inclined side beam 12 makes the connecting base 1 have a certain height, as shown in FIG. Figure 5 As shown, after the carriage 15 is connected to the connecting base 1, the carriage 15 can be supported to facilitate the installation of hanging objects at the bottom of the carriage 15, providing a certain vertical space to prevent the hanging objects from contacting the ground.

[0050] Specific examples Figure 1 and Figure 5 As shown, a positioning hole 3 is provided on the surface of the connecting base 1, and a carriage 15 is installed on the surface of the connecting base 1. The surface of the carriage 15 has a fixing seat, and the fixing seat has an opening aligned with the positioning hole 3. The carriage 15 and the connecting base 1 can be fixed with screws and nuts.

[0051] The working principle and use process of the present invention are as follows: after the connection base 1 and the carriage 15 are installed, when the carriage 15 needs to be braked, the first electrically controlled valve 10 and the second electrically controlled valve 11 are opened at the same time, and the high-pressure gas in the first gas tank 6 enters the brake cylinder 14. The gas pressure controls the brake cylinder 14 to contract, and the piston rod and the shell of the brake cylinder 14 respectively drive the two groups of brake seats 9 to approach each other. When the brake seat 9 slides along the slide rod 24, it is ensured that the brake seat 9 can only move in a straight line. When the brake seat 9 moves, it pushes the corresponding pull rod 21 to move, and the pull rod 21 drives the connecting rod 19 to rotate, ensuring the synchronization of the movement of the two groups of brake seats 9. The brake leather 17 on the surface of the brake seat 9 clamps the wheel 8, so that the resistance to the rotation of the wheel 8 increases, which has the effect of slowing down the wheel 8;

[0052] When the brake shoe 17 brakes the wheel 8, the heat generated by friction causes the temperature of the brake shoe 17 and the wheel 8 to rise rapidly. The high temperature causes the problem of brake thermal decay, which makes the braking distance longer. When the second electronically controlled valve 11 is opened, the high-pressure gas in the second gas tank 7 enters the cooler 22. The cooler 22 blows air to the brake shoe 17 and the wheel 8, quickly taking away the heat generated by friction, reducing the temperature of the brake shoe 17 and the wheel 8, suppressing the problem of brake thermal decay, and shortening the braking distance. When the carriage 15 brakes frequently, brakes with a full load, or brakes continuously, the carriage 15 can stop in time.

[0053] After the carriage 15 is braked, the air pump 5 inflates the first air tank 6 and the second air tank 7, and the first electrically controlled valve 10 relieves pressure on the brake cylinder 14. At this time, the resetter 23 pushes the brake seat 9 away from the wheel 8. When the carriage 15 moves, no braking force is generated on the wheel 8.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A brake beam module, characterized in that: include: An assembly beam (4), wherein the end of the assembly beam (4) is rotatably connected to a wheel frame (13), and a wheel (8) is mounted on the surface of the wheel frame (13); A connecting rod (19), wherein the connecting rod (19) is rotatably connected to the wheel frame (13), a pull rod (21) is installed at both ends of the connecting rod (19), and the end of the pull rod (21) is rotatably connected to a brake seat (9), a brake skin (17) is installed inside the brake seat (9), and a sliding rod (24) connected to the wheel frame (13) is inserted into the surface of the brake seat (9), a connecting shaft (18) is provided in the middle of the surface of the connecting rod (19), and the lower end of the connecting shaft (18) is connected to the wheel frame (13), and an insertion shaft (20) is provided at both ends of the connecting rod (19), and the insertion shaft (20) is connected to the pull rod (21); A brake cylinder (14), the brake cylinder (14) is placed on the surface of the wheel frame (13), the brake cylinder (14) is connected to the brake seat (9), and the brake cylinder (14) drives the brake seat (9) close to the wheel (8) to achieve the braking of the wheel (8); A cooler (22) is placed on the surface of the brake seat (9), and the cooler (22) is located on the side of the wheel (8) and the brake skin (17) to achieve cooling of the wheel (8) and the brake skin (17).

2. The brake beam module according to claim 1, characterized in that: A connecting portion (25) is provided in the middle of the assembly beam (4), and three groups of connecting holes (26) are provided on the surface of the connecting portion (25).

3. The brake beam module according to claim 1, characterized in that: An air pump (5) and a first air tank (6) and a second air tank (7) in communication with the air pump (5) are mounted on the surface of the assembly beam (4); the first air tank (6) and the second air tank (7) are in communication with the brake cylinder (14) and the cooler (22) respectively.

4. The brake beam module according to claim 3, characterized in that: The gas outlets of the first gas tank (6) and the second gas tank (7) are respectively equipped with a first electrically controlled valve (10) and a second electrically controlled valve (11).

5. The brake beam module according to claim 1, characterized in that: A resetter (23) is installed on the surface of the slide bar (24), and the end of the resetter (23) is against the side of the brake seat (9).

6. A braking structure, characterized in that: The brake structure comprises the brake beam module according to any one of claims 1 to 5.

7. A braking structure according to claim 6, characterized in that: The braking structure further comprises a connecting base (1), an end of the connecting base (1) is provided with a clamping head (2), and the clamping head (2) is mounted on the surface of the connecting portion (25).

8. A braking structure according to claim 7, characterized in that: The connecting base (1) has a side beam (12), the side beam (12) is arranged obliquely, and the side beam (12) and the connecting base (1) are integrally formed.

9. The brake structure according to claim 7, characterized in that: A positioning hole (3) is provided on the surface of the connection base (1), and a carriage (15) is mounted on the surface of the connection base (1).

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