CN117048658A - Railway vehicle safety braking assembly - Google Patents

Abstract

The invention relates to the technical field of locomotive braking, in particular to a railway vehicle safety braking assembly, which comprises: a frame; wheel pairs, which are arranged at the lower part of the framework and are provided with four groups; an axle box provided at a lower portion of the frame and connected to the wheel set; a suspension device disposed on the frame; the braking device is arranged on the framework and is connected with the wheel set; and the vehicle body is arranged at the upper part of the framework and is connected with the suspension device. The invention provides a railway vehicle safety brake component which can prevent the phenomenon of overheating and burning of a wheel hub and a brake device.

Description

A kind of railway vehicle safety braking component

Technical field

The invention relates to the technical field of locomotive braking, and in particular to a railway vehicle safety braking assembly.

Background technique

Railway vehicle braking is to artificially stop the movement of vehicles on the railway, including making it slow down, not accelerate or stop running, and to release or weaken the braking effect of the braked railway vehicle or locomotive, which is called "mitigation". A complete set of equipment installed on a railway vehicle for braking and alleviation is collectively referred to as a railway vehicle "braking device".

After the current braking device on the railway vehicle brakes the vehicle on the railway, the wheel hub is braked, which may easily cause the wheel hub and the braking device to overheat and burn due to the high temperature generated during braking.

Contents of the invention

In order to solve the above-mentioned technical defects of the prior art, the present invention provides a railway vehicle safety braking assembly, which can prevent the wheel hub and the braking device from overheating and burning, and can effectively solve the problems in the background technology.

In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

The embodiment of the present invention discloses a railway vehicle safety braking assembly, which includes:

framework;

Wheel sets are arranged at the lower part of the frame and have four groups;

an axle box, arranged at the lower part of the frame and connected to the wheelset;

Suspension means, provided on the frame shown;

A braking device is provided on the frame and connected to the wheelset;

The vehicle body is arranged on the upper part of the frame and connected with the suspension device.

In any of the above solutions, it is preferred that the frame includes two side beams and four cross beams.

In any of the above solutions, it is preferable that the wheel pair includes an axle, a pair of wheels and a pair of brake discs; the axles are respectively penetrated through the wheels and the brake discs; the brake discs are located on The middle of a pair of said wheels.

In any of the above solutions, it is preferred that the axle box is provided at both ends of the axle.

In any of the above solutions, it is preferred that the suspension device includes a series of suspension devices connected to both ends of the wheel pair; the primary suspension device includes a swing arm and a first spring; The rotating arm is located at the upper part of the axle box and is connected to the frame; the first spring is located on one side of the axle box and is connected to the frame.

In any of the above solutions, it is preferred that the suspension device further includes a secondary suspension device, and the secondary suspension device is connected to the vehicle body; the secondary suspension device includes a positioning device and a second spring; the positioning device Located on the upper part of the second spring.

In any of the above solutions, preferably, the braking device includes a connecting rod and a brake caliper; the brake caliper is provided at one end of the connecting rod, and the brake caliper is connected to the brake caliper. disk connection.

Compared with the prior art, the beneficial effects of the present invention are:

The frame is the skeleton part of the bogie. It is used to install the components of the bogie and bear and transmit vertical and horizontal forces. The wheelset directly transmits the weight of the vehicle to the rails, and generates traction and braking force through wheel-rail adhesion, which is achieved through the rotation of the wheelset. The vehicle guides the vehicle on the line; the axle box ensures the rotational movement of the wheel pair, allowing the wheel pair to adapt to the line conditions and move up and down, front and back, and left and right relative to the frame; the suspension device ensures even distribution of axle weight and mitigates the impact of uneven lines on the vehicle Function: When passing through a curve, the bogie rotates relative to the car body to ensure the smooth operation of the vehicle; the car body is the part where passengers ride, and also plays a role in protecting passengers and equipment; the braking device is an important component of vehicle safety In part, the braking device slows down or stops the vehicle by applying resistance or friction; it can reduce the high temperature generated by the wheel hub and braking device during braking, and prevent the wheel hub and braking device from overheating and burning.

Description of the drawings

The drawings are used to further understand the present invention and to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation of the present invention.

Figure 1 is a perspective view of the safety braking assembly of a railway vehicle according to the present invention;

Figure 2 is another perspective view of the railway vehicle safety braking assembly of the present invention;

Figure 3 is a detailed view of the braking device of the railway vehicle safety braking assembly of the present invention.

Description of numbers in the figure: 1. Frame; 2. Wheel set; 3. Axle box; 4. Suspension device; 5. Braking device; 21. Axle; 22. Wheel; 23. Brake disc; 41. Primary suspension device ; 42. Secondary suspension device; 51. Connecting rod; 52. Brake caliper; 411. Rotary arm; 412. First spring; 421. Positioning device; 422. Second spring.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not Any indication or implication that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation should not be construed as a limitation on the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless otherwise explicitly and specifically limited.

In order to better understand the above technical solution, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific implementation modes.

As shown in Figures 1 to 3, a railway vehicle safety braking assembly includes:

Frame 1;

Wheel set 2 is provided at the lower part of the frame 1 and has four sets;

Axle box 3 is provided at the lower part of the frame 1 and is connected to the wheelset 2;

Suspension device 4 is provided on the frame 1 shown;

Braking device 5 is provided on the frame 1 and connected to the wheelset 2;

The vehicle body 6 is arranged on the upper part of the frame 1 and is connected to the suspension device 4 .

In the embodiment of the present invention, the frame is the skeleton part of the bogie, which is used to install the components of the bogie, bear and transmit vertical and horizontal forces; the wheelset directly transmits the weight of the vehicle to the rails, and generates traction and braking force through wheel-rail adhesion. Power is used to guide the vehicle on the line through the rotation of the wheel set; the axle box ensures the rotational motion of the wheel set, allowing the wheel set to adapt to the line conditions, and can move up and down, front and back, and left and right relative to the frame; the suspension device enables the vehicle's mass and load to be compared It is transmitted to each axle evenly, and the hook height of the vehicle in the static load state meets the specified requirements to ensure the normal coupling between vehicles; attenuation is caused by uneven lines, rail gaps, switches, rail wear and uneven Subsidence, as well as vehicle vibration and impact caused by factors such as out-of-round wheels and journal eccentricity; the braking device is an important part of vehicle safety. The braking device slows down or stops the vehicle by applying resistance or friction. ; The car body is the part where passengers ride, and it also plays a role in protecting passengers and equipment.

As shown in Figures 1 to 3, the frame 1 includes two side beams and four cross beams.

In the embodiment of the present invention, the frame carries the overall weight of the vehicle, including the body, passengers, cargo and other devices. Through the structural layout of two side beams and four cross beams, it can evenly distribute and bear the weight of the vehicle, ensuring that The vehicle remains stable and balanced when running; the two side beams and four cross beams of the frame are connected to each other, providing sufficient strength and rigidity when the vehicle is running, helping to resist external vibration, impact and stress, ensuring that the vehicle operates under various conditions. Maintain structural integrity and reliability under operating conditions; the frame serves as the skeleton of the entire bogie, providing a support platform for the installation and connection of other components, such as wheelsets, axle boxes, suspension devices and braking devices, etc. On the frame, the strength and stability of the frame are relied upon for fixation and support; the structural design of the frame can provide protection and stability during vehicle operation, reduce the impact of external collisions on the passengers and equipment inside the vehicle, and maintain the stability of the entire vehicle. travel.

As shown in Figures 1 to 3, the wheel pair 2 includes an axle 21, a pair of wheels 22 and a pair of brake discs 23; the axle 21 is respectively penetrated through the wheels 22 and the brake disc 23; The brake disc 23 is located in the middle of the pair of wheels 22 .

In the embodiment of the present invention, the wheelset bears the entire weight of the vehicle and runs at high speed on the track. At the same time, it also bears various dynamic and static forces transmitted from the vehicle body and the rails, and the forces are complex; the axle 21 is The main element connecting the wheel pair. Through the transmission function of the axle, the wheel 22 can carry the weight of the vehicle and transmit power. The wheel promotes the movement of the vehicle through contact with the track. The wheel hub is the part where the wheel and axle cooperate with each other; the wheel 22 is used when the vehicle is running. When in contact with the track, it can provide traction and braking force. When the vehicle is moving, the friction between the wheels and the railway track drives the vehicle forward; the brake disc 23 is combined with the braking device through friction to provide braking ability, slow down or stop the vehicle, and the brake disc 23 is located The middle of the wheel 22 can ensure that the braking force is evenly distributed on both sides of the wheel, improving the braking effect and stability; the synergy of the wheel pair ensures the normal driving, braking and parking processes of the railway vehicle.

As shown in FIGS. 1 to 3 , the axle box 3 is provided at both ends of the axle 21 .

In the embodiment of the present invention, the axle box bears the weight of the vehicle and transmits the forces in all directions; the axle box is arranged on the journal of the axle and is used to install the bearing and connect the wheel set and the frame together so that the wheel set moves along the The rolling motion of the rail is converted into the translational motion of the car body along the line; the axle box has good sealing performance to prevent the intrusion of dust, rainwater, etc. and oil rejection, thereby avoiding damage to the lubrication of grease. Ensure good lubrication performance, reduce wear and reduce operating resistance.

As shown in Figures 1 to 3, the suspension device 4 includes a primary suspension device 41, which is connected to both ends of the wheelset 2; the primary suspension device 41 includes a rotating arm 411 and the first spring 412; the rotating arm 411 is located at the upper part of the axle box 3 and is connected to the frame 1; the first spring 412 is located on one side of the axle box 3 and is connected to the frame 1.

In the embodiment of the present invention, the primary suspension device is a spring damping system arranged between the bogie frame and the wheelset. In order to alleviate the impact and vibration of the rail on the locomotive, a certain weight is distributed to the axle and the distributed weight is distributed to the axle. Significant changes will not occur when the wheels travel on uneven lines; a series of suspension devices 41 are located at both ends of the wheel pair 2, which can absorb and alleviate the vibration and impact encountered by the vehicle during driving. When the vehicle is driving on uneven tracks, , the rotating arm 411 and the first spring 412 can reduce the impact and vibration between the vehicle body and the wheel pair; the primary suspension device 41 can disperse and stabilize the weight load of the vehicle by connecting the wheel pair 2; during the driving process of the vehicle, the rotating The arm 411 and the first spring 412 can elastically deform to balance the load among the entire suspension device and disperse it to each wheel pair to ensure the stability and balance of the vehicle; the existence of the primary suspension device 41 can improve the railway vehicle The driving stability can reduce the rolling and bumping of the vehicle when driving at high speed or encountering uneven tracks, providing a smoother driving experience and increasing the vehicle's grip and controllability.

As shown in Figures 1 to 3, the suspension device 4 also includes a secondary suspension device 42, which is connected to the vehicle body 6; the secondary suspension device 42 includes a positioning device 421 and a second spring. ; The positioning device 421 is located on the upper part of the second spring 422.

In the embodiment of the present invention, the secondary suspension device 42 can transmit the weight of the car body and its internal equipment, and distribute the weight according to the design requirements to ensure that the load of each bogie is uniform and each axle meets the specified requirements; it can transmit the weight generated by the bogie. Traction force, braking force and various lateral forces on the bogie and car body during operation; improve the dynamic performance of the locomotive when vibrating and passing curves, especially the lateral dynamic performance; ensure the flexibility of the vehicle when passing curves and stability, and keep the car body in a balanced position relative to the bogie; mitigate the impact and vibration of the rails on the vehicle, improve the working reliability of components and passenger comfort; the secondary suspension device 42 is connected to the car body 6 to to connect and support the car body; through the fixation of the positioning device 421, the suspension device connects the car body and the wheel set to ensure the stability and relative position accuracy of the car body and the wheel set; the second spring is the secondary suspension The key component of the device can provide suspension support through elastic deformation, allowing the vehicle body to move and adjust in the vertical direction relative to the wheel set; the second spring can absorb and slow down the impact caused by uneven tracks and debris during vehicle operation. Vibrations and impacts caused by rocks and other external factors.

As shown in Figures 1 to 3, the braking device 5 includes a connecting rod 51 and a brake caliper 52; the brake caliper 52 is provided at one end of the connecting rod 51, and the brake caliper 52 Connected to the brake disc 23.

In the embodiment of the present invention, the function of the braking device is to realize the braking function through the connection between the brake caliper and the brake disc; when the brake pedal is stepped on, the brake caliper will exert pressure on the brake disc on, thereby generating friction to slow down or stop the movement of the vehicle; the connection position of the brake caliper is at one end of the connecting rod, which can make the brake caliper more firmly fixed on the frame; through the connection with the brake disc , the brake caliper can better transmit the braking force and improve the braking effect; the brake caliper adopts the design of heat sink to increase the heat dissipation area and improve the heat dissipation efficiency so as to better cool the brake; the brake caliper can be made of high-quality The high-performance brake pad material has good heat dissipation and high temperature resistance, which can effectively reduce the temperature during braking; the brake caliper can effectively reduce the high temperature generated during braking, preventing the wheel hub and brake device from overheating and burning. phenomenon occurs, improving the performance and life of the braking system; the braking device realizes a reliable braking function through the connection between the brake caliper and the brake disc, which can effectively slow down or stop the movement of the vehicle and improve driving safety. sex.

When the vehicle is running, the bogie bears the weight of the upper part of the locomotive, including the weight of the car body and various mechanical and electrical equipment installed in the car body, and transfers these weights to the rails through a series of spring suspension devices; the bogie generates traction and braking force, and transmit the generated traction and braking force to the car body chassis through the traction device, and finally to the coupler to achieve traction and braking of the train; the bogie mitigates the impact of the line on the locomotive during operation, ensuring The stability of the locomotive operation; the bogie, under the action of the rails, guides the locomotive through curves and switches smoothly, ensuring the safe operation of the locomotive on curves; the bogie makes full use of the adhesion between the wheels and rails to transmit traction and braking force, amplifying the braking force. The braking force generated by the cylinder gives the vehicle a good braking effect to ensure that it stops within a specified distance.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still describe the foregoing embodiments. Modify the technical solution, or make equivalent replacements for some of its technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (7)

1. A railway vehicle safety braking assembly, characterized by: including: Frame(1); Wheel sets (2) are arranged at the lower part of the frame (1) and have four groups; An axle box (3) is provided at the lower part of the frame (1) and connected to the wheelset (2); The suspension device (4) is arranged on the frame (1) shown; A braking device (5) is provided on the frame (1) and connected to the wheelset (2); The vehicle body (6) is arranged on the upper part of the frame (1) and is connected to the suspension device (4). 2. The railway vehicle safety braking assembly according to claim 1, characterized in that the frame (1) includes two side beams and four cross beams. 3. The railway vehicle safety braking assembly according to claim 2, characterized in that: the wheel pair (2) includes an axle (21), a pair of wheels (22) and a pair of brake discs (23); The axle (21) is passed through the wheel (22) and the brake disc (23) respectively; The brake disc (23) is located in the middle of a pair of wheels (22). 4. The railway vehicle safety braking assembly according to claim 3, characterized in that the axle box (3) is provided at both ends of the axle (21). 5. The railway vehicle safety braking assembly according to claim 4, characterized in that: the suspension device (4) includes a primary suspension device (41), the primary suspension device (41) and the wheel pair (2) The two ends are connected; The primary suspension device (41) includes a rotating arm (411) and a first spring (412); The rotating arm (411) is located at the upper part of the axle box (3) and is connected to the frame (1); The first spring (412) is located on one side of the axle box (3) and connected to the frame (1). 6. The railway vehicle safety braking assembly according to claim 5, characterized in that: the suspension device (4) further includes a secondary suspension device (42), the secondary suspension device (42) and the car body (42) 6) Connect; The secondary suspension device (42) includes a positioning device (421) and a second spring (422); The positioning device (421) is located on the upper part of the second spring (422). 7. The railway vehicle safety braking assembly according to claim 6, characterized in that: the braking device (5) includes a connecting rod (51) and a brake caliper (52); The brake caliper (52) is provided at one end of the connecting rod (51), and the brake caliper (52) is connected to the brake disc (23).