Railway vehicle secondary suspension mechanism

Abstract

The application belongs to the technical field of high-speed track mechanical equipment, and discloses a secondary suspension mechanism for track locomotive vehicles, which comprises a secondary suspension mechanism body and a drying drainage part. The secondary suspension mechanism body comprises a bogie and two air springs and four hydraulic springs. The two air springs mounted on the bogie serve as elastic elements for buffering vertical vibration and improving riding comfort. The four hydraulic springs mounted between the side beam of the bogie frame and the vehicle body bottom frame serve as load-carrying force transmission paths. The filter disc structure is internally provided with drying particles for dehumidifying the gas entering the air spring. A micro motor is used to drive the filter disc to rotate by 180 degrees, so as to realize automatic replacement of the failed drying agent. The automatic reciprocating movement of the rubber pressure plate can extrude and discharge the condensed water in the piston cylinder. The intermittent blocking design of the arc-shaped baffle can ensure the sealing property of the gas storage tank during the drainage process.

Description

Technical Field

[0001] This invention belongs to the technical field of high-speed rail machinery and equipment, specifically a secondary suspension mechanism for rail locomotives and rolling stock. Background Technology

[0002] Two-stage suspension is one of the key components of railway vehicle bogies. It consists of a primary suspension and a secondary suspension, which respectively undertake the elastic connection function between the wheels and axle boxes and between the bogie and the car body. This system effectively reduces track impact and improves vehicle running stability through graded buffering. It is widely used in the manufacturing of railway locomotives and rolling stock such as new railway passenger cars. Among them, the two-stage suspension system in high-speed rail traffic safety often uses devices such as air springs and anti-hunting shock absorbers to achieve precise adjustment of the car body attitude. Through the systematic division of force transmission paths, a multi-stage load transmission mechanism is formed. The air springs in the secondary suspension system are crucial to the safety and comfort of train operation. If the air supply system pressure is insufficient, the pipeline is blocked, or water accumulates in the air spring, it will cause inconsistent cushioning force and cause the car body to tilt. Water accumulation in the air spring is mainly caused by the condensation of water vapor in the air tank after compression, coupled with desiccant failure, sealing problems, or a humid external environment. Liquid water increases the resistance to gas (air) flow, affecting the air spring's extension and contraction response speed and stability, which may lead to uneven lifting / lowering or increased vibration, affecting the safe operation of high-speed rail locomotives and rolling stock. Summary of the Invention

[0003] To address the problems mentioned in the background section, the present invention provides a secondary suspension mechanism for rail locomotives and rolling stock.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a secondary suspension mechanism for rail locomotives, comprising a secondary suspension mechanism body and a drying and drainage section. The secondary suspension mechanism body includes a bogie, two air springs, and four hydraulic springs. The two air springs mounted on the bogie serve as elastic elements to buffer vertical vibrations and improve ride comfort. The four hydraulic springs mounted between the side beam of the bogie frame and the car body underframe are used to bear the force transmission path and prevent the secondary suspension mechanism body from tilting. The drying and drainage section includes a gas storage tank and a gas filter plate. A partition plate is fixedly connected to the inner wall of the gas filter plate. Drying particles for drying the gas are placed inside the gas filter plate. The gas filter plate is equipped with a driving structure for driving the gas filter plate to rotate 180 degrees. A piston cylinder is fixedly connected to the gas storage tank. A rubber pressure plate is slidably connected to the inner wall of the piston cylinder. Four water inlet holes are circumferentially opened on the cylinder body of the piston cylinder. A conical groove plate is fixedly connected between the gas storage tank and the piston cylinder to facilitate the rapid entry of condensate from the four water inlet holes. The gas storage tank is provided with a rotating meshing structure to generate negative pressure in the piston cylinder and discharge the collected condensate.

[0005] Preferably, the air tank and the bogie are fixedly connected, and a filter pipe is fixedly connected through the tank body near the top of the air tank. A guide pipe is threadedly connected to the tube body of the filter pipe away from the air tank, and the tube body of the guide pipe away from the filter pipe is fixedly connected through the air spring. The air filter tube is composed of two sections of tube spliced ​​together. The two sections of the air filter tube are tightly connected by a sealing ring. A semi-circular plate is fixedly connected to the inner wall of each section of the air filter tube. The plates of the two semi-circular plates are tightly connected to the two ends of the air filter disc.

[0006] Preferably, the drive structure includes a micro motor and a protective cover fixedly connected to the outer wall of the top of the air filter tube. The output shaft of the micro motor and one end of the protective cover are rotatably connected through each other, and a rubber wheel is fixedly connected to the output shaft of the micro motor.

[0007] Preferably, the top end of the filter tube has an arc-shaped groove that can slide and fit with the body of the rubber wheel. The body of the rubber wheel and the outer wall of the filter disc are fitted and rotated together. The inner wall of the joint between the two sections of the filter tube has an annular groove that fits and engages with the body of the filter disc.

[0008] Preferably, the separator is used to divide the dry particles in the air filter disc into two parts for switching use.

[0009] Preferably, the rotary meshing structure includes a motor fixedly connected to the outer wall of the gas storage tank, a rotating rod fixedly connected to the output shaft of the motor, the rod body of the rotating rod and the tank body of the gas storage tank being rotatably connected through, and a cam fixedly connected to the rod body of the rotating rod, and an elastic telescopic member fixedly connected to the top outer wall of the rubber pressure plate, the top of the elastic telescopic member and the outer surface of the wheel of the cam being slidably pressed together; Ear plates are fixedly connected to the inner walls of both ends of the piston cylinder near the top, and a helical spring is fixedly connected between the bottom plate of the two ear plates and the top outer wall of the rubber pressure plate.

[0010] Preferably, four L-shaped elastic telescopic rods are fixedly connected to the elastic telescopic member. An arc-shaped baffle is fixedly connected to the bottom end of each L-shaped elastic telescopic rod. The plate of each arc-shaped baffle can be slidably connected to the outer wall of the piston cylinder. The bottom end of each arc-shaped baffle can be intermittently connected to the inner wall of the conical groove plate. The conical groove plate is fixedly connected to the inner wall of the gas storage tank.

[0011] Preferably, the rubber plate is provided with a retaining ball in a circumferential manner, and the inner wall of the piston cylinder is provided with a plurality of retaining grooves that respectively engage with each retaining ball. A spring is fixedly connected to the ball of each retaining ball. The inner wall of the rubber plate is provided with a T-shaped column groove that is circumferentially and slidably connected to each retaining ball. The other end of each spring is fixedly connected to the groove wall of each T-shaped column groove. A plug is tightly fitted into the bottom end of the piston cylinder, and springs are fixedly connected to both sides of the plug and the outer wall of the bottom end of the piston cylinder.

[0012] Preferably, a meshing assembly is fixedly connected to the rod body of the rotating rod one. The meshing assembly one consists of two meshing bevel gears. A rotating rod two is fixedly connected to the horizontal bevel gears. The rod body of the rotating rod two is rotatably connected to the conical groove plate. A meshing assembly two is also fixedly connected to the bottom end of the rod body of the rotating rod two. The meshing assembly two consists of a spur gear and a toothed ring. The spur gear and the toothed ring are meshed together. Multiple support rods are slidably connected to the bottom end of the toothed ring. The bottom end of each support rod is fixedly connected to the inner wall of the bottom end of the gas storage tank.

[0013] Preferably, a plurality of U-shaped rods are fixedly connected to the inner wall of the toothed ring, and a metal paddle is rotatably connected to each U-shaped rod. A plurality of rectangular slots are circumferentially formed on the cylinder of the piston cylinder. Each metal paddle can be slidably connected to each rectangular slot. A disc is fixedly connected to the outer walls of the upper and lower ends of each metal paddle and to the rod of each U-shaped rod. A torsion spring is fixedly connected between every two discs.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses a filter disc structure with built-in drying particles to dehumidify the gas entering the air spring, preventing moisture from entering the air spring and causing performance degradation and shortened lifespan. A micro motor drives the filter disc to rotate 180 degrees, enabling automatic replacement of the desiccant. The filter tube adopts a two-section splicing structure, and the filter disc can be quickly disassembled and maintained through threaded connection, reducing the cost of later maintenance. This invention utilizes a conical groove plate and piston cylinder structure design to achieve rapid collection and gathering of condensate in the gas storage tank, solving the problem of condensate residue under negative pressure. It employs a piston structure with a motor-driven cam and elastic telescopic components, combined with a ball and slot limit unlocking mechanism, to achieve automatic reciprocating motion of the rubber pressure plate, squeezing and discharging the condensate in the piston cylinder. The intermittent sealing design of the arc-shaped baffle ensures the airtightness of the gas storage tank during drainage. This invention utilizes a metal paddle vibration scraping structure linked by an interlocking assembly. The elastic deformation of the torsion spring causes the metal paddle to intermittently collide with the rectangular groove of the piston cylinder, thereby disrupting the adhesion between water molecules and the cylinder wall, reducing condensate residue, and preventing tank corrosion, pipe icing, valve jamming, and other malfunctions.

[0015] In this invention, the condensate in the piston cylinder is discharged under the action of gravity and residual static pressure, and the high-pressure gas in the gas storage tank cannot enter the piston cylinder due to the blockage of the water inlet, thus avoiding the mixing of gas and water. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall front structure of the present invention; Figure 3 This is a schematic diagram of a partially disassembled cross-sectional structure of the drying and drainage section of the present invention; Figure 4 This is a schematic diagram of the disassembled structure of the filter tube of the present invention; Figure 5 This is a partial cross-sectional structural diagram of the drying and drainage section of the present invention; Figure 6 This is a schematic diagram of the ball-holding structure of the present invention; Figure 7 This is a schematic diagram of the second meshing component of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the rubber pressure plate and piston cylinder of the present invention; Figure 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point A in the middle.

[0017] In the picture: 1. Secondary suspension mechanism body; 101. Bogie; 102. Air spring; 103. Hydraulic spring; 2. Drying and drainage section; 201. Air tank; 202. Air filter pipe; 203. Air guide pipe; 204. Miniature motor; 205. Protective cover; 206. Rubber wheel; 207. Air filter disc; 208. Torsion spring; 209. Divider plate; 210. Ear plate; 211. Spring 1; 212. Motor; 213. Rotating rod 1; 214. Cam; 215. Elastic telescopic component; 216. Rubber pressure plate; 217. Live... 218. Plug; 219. L-shaped elastic telescopic rod; 220. Arc-shaped baffle; 221. Water inlet; 222. Conical groove plate; 222. Ball catcher; 223. Spring II; 224. T-shaped column groove; 225. Plug; 226. Spring III; 227. Engaging assembly I; 228. Rotating rod II; 229. Engaging assembly II; 2291. Support rod; 230. U-shaped rod frame; 231. Metal lever; 232. Disc. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 9 As shown, the present invention provides a secondary suspension mechanism for rail locomotives and rolling stock, including a secondary suspension mechanism body 1 and a drying and drainage section 2. The secondary suspension mechanism body 1 includes a bogie 101, two air springs 102, and four hydraulic springs 103. The two air springs 102 installed on the bogie 101 serve as elastic elements to buffer vertical vibration and improve ride comfort. The four hydraulic springs 103 installed between the side beam of the bogie 101 frame and the car body underframe are used to bear the force transmission path and prevent the secondary suspension mechanism body 1 from tilting. The drying and drainage section 2 includes a gas storage tank 201 and a filter disc 207. A partition plate 209 is fixedly connected to the inner wall of the filter disc 207, dividing the filter disc 207 into two spaces. Drying particles for drying the gas are placed in both spaces of the filter disc 207. The filter disc 207 is equipped with a drive structure for rotating the filter disc 207 180 degrees. The gas storage tank 201 and the bogie 101 are fixedly connected. A filter pipe 202 is fixedly connected through the tank body near the top of the gas storage tank 201. The filter pipe 202 is located away from the pipe body of the gas storage tank 201. The air guide tube 203 is connected to the upper thread, and the part of the air guide tube 203 away from the air filter tube 202 is fixedly connected to the air spring 102. The air filter tube 202 is composed of two sections of tube spliced ​​together. The two sections of the air filter tube 202 are tightly connected by a sealing ring. One section of the tube is fixedly connected to the air storage tank 201, and the other section of the tube is threadedly connected to the air guide tube 203. The air guide tube 203 passes through the air filter tube 202, and a semi-circular plate is fixedly connected to the inner wall of the air filter tube 202 formed by splicing the two sections. The plates of the two semi-circular plates are tightly connected to the two ends of the air filter plate 207. The drive structure includes a micro motor 204 fixedly connected to the outer wall of the top end of a section of the filter pipe 202 near the gas storage tank 201, and a protective cover 205. The output shaft of the micro motor 204 and one end of the protective cover 205 are rotatably connected through it. A rubber wheel 206 is fixedly connected to the end of the output shaft of the micro motor 204 that extends out of the protective cover 205. An arc-shaped groove is opened through the top end of the filter pipe 202 so as to fit and slide with the wheel body of the rubber wheel 206. The wheel body of the rubber wheel 206 fits and abuts against the outer wall of the filter disc 207. An annular groove is opened in the inner wall of the joint of the two sections of the filter pipe 202 so as to fit and engage with the disc body of the filter disc 207. The separator plate 209 is used to separate the dry particles in the filter disc 207 into two parts for switching use.

[0020] The above solution utilizes multiple symmetrical hydraulic springs 103 installed on the secondary suspension mechanism body 1 to optimally match the load-bearing force transmission path between the bogie 101 and the car body on the rail locomotive. This balances vertical vibration reduction and height adjustment, and assists the air springs 102 in buffering vertical vibrations. (The presence of the hydraulic springs 103 provides low stiffness and high damping when the high-speed rail locomotive experiences low-frequency large displacements during operation, buffering the impact of track irregularities and attenuating the vertical / lateral vibrations of the car body. During high-frequency small displacements, it automatically increases stiffness, suppressing the hunting motion of the bogie 101 and wheelset instability, ensuring good wheel-rail contact and operational safety at high speeds.) This enhances ride comfort. The air spring 102 experiences varying amplitude vibrations due to the movement of the high-speed rail locomotive, creating negative pressure within its inner cavity. This pressure is channeled through the air guide pipe 203 and the air filter pipe 202, drawing in and compressing the gas from the air tank 201. This process serves four core functions: load bearing, vibration damping, adaptive leveling, and noise reduction, and is crucial for the air spring 102's excellent suspension performance. However, without intervention regarding the gas conditions within the air tank 201, prolonged passive suction and compression, coupled with negative pressure, leads to a decrease in gas temperature and saturated water content. Excess water vapor precipitates and condenses into liquid water, causing a decline in the air spring 102's performance and a shortened lifespan. Figure 3 and Figure 4 As shown, when the gas passes through the filter disc 207, the moisture is absorbed by the desiccant (particles) in the filter disc 207. The desiccant is activated alumina desiccant particles, which prevents the gas from carrying liquid into the air spring 102. After the filter disc 207 has been used for a certain period of time (the specific usage period is determined according to the actual operating mileage), the micro motor 204 installed in the protective cover 205 is automatically activated by the system programming, which drives the rubber wheel 206 to rotate, thereby contacting and rubbing against the outer surface of the filter disc 207. The friction coefficient between the rubber wheel 206 and the filter disc 207 causes the filter disc 207 to be passively rotated in the inner wall of the annular groove opened in the filter pipe 202 under the action of external force. Until the filter disc 207 is passively rotated 180 degrees, the filter disc 207 will rotate and replace the used desiccant, so that the unused desiccant placed in the filter disc 207 can come into contact with the gas flowing through the filter tube 202 for filtration. When rotated 180 degrees, the semi-circular plate installed in the filter tube 202 can no longer block the other part of the desiccant in the filter disc 207. Subsequently, by rotating a section of the filter tube 202 that is threaded to the air guide tube 203, the filter disc 207 is exposed, and the entire filter disc 207 structure can be removed. The used filter disc 207 in the filter tube 202 can be quickly and easily replaced to replace the new filter disc 207 containing desiccant.

[0021] A piston cylinder 217 is fixedly connected to the gas storage tank 201. A rubber pressure plate 216 is slidably connected to the inner wall of the piston cylinder 217. Four water inlet holes 220 are circumferentially opened on the cylinder body of the piston cylinder 217. A conical groove plate 221 is fixedly connected between the gas storage tank 201 and the piston cylinder 217 to facilitate the rapid entry of condensate from the four water inlet holes 220. The gas storage tank 201 is provided with a rotating meshing structure to generate negative pressure in the piston cylinder 217 and discharge the collected condensate.

[0022] The rotary meshing structure includes a motor 212 fixedly connected to the outer wall of the gas storage tank 201. A rotating rod 213 is fixedly connected to the output shaft of the motor 212. The rod body of the rotating rod 213 is rotatably connected to the tank body of the gas storage tank 201. A cam 214 is fixedly connected to one end of the rotating rod 213 that penetrates into the gas storage tank 201. An elastic telescopic member 215 is fixedly connected to the outer wall of the top of the rubber pressure plate 216. The elastic telescopic member 215 consists of a spring telescopic rod and a roller fixed to the telescopic end of the spring telescopic rod. The roller on the telescopic end of the elastic telescopic member 215 and the outer surface of the wheel of the cam 214 are slidably pressed together. Ear plates 210 are fixedly connected to the inner walls of both ends of the piston cylinder 217 near the top. A spring 211 is fixedly connected between the bottom plate of the ear plate 210 and the top outer wall of the rubber pressure plate 216. Four L-shaped elastic telescopic rods 218 are fixedly connected to the telescopic end of the elastic telescopic member 215. The L-shaped elastic telescopic rods 218 are also existing spring telescopic rods, except that the telescopic end of the spring telescopic rod is extended into an L-shape. An arc-shaped baffle 219 is fixedly connected to the bottom rod of each L-shaped elastic telescopic rod 218. The plate of each arc-shaped baffle 219 can slide and fit against the outer wall of the piston cylinder 217. The bottom end of each arc-shaped baffle 219 can intermittently fit against the inner wall of the conical groove plate 221. The conical groove plate 221 is fixedly connected to the inner wall of the gas storage tank 201. The rubber pressure plate 216 is provided with a retaining ball 222 in a circumferential manner. The inner wall of the piston cylinder 217 is provided with a plurality of retaining grooves that are respectively engaged with each retaining ball 222. Each retaining ball 222 is fixedly connected to a spring 223. The inner wall of the rubber pressure plate 216 is provided with a T-shaped groove 224 that is circumferentially connected to each retaining ball 222. The other end of each spring 223 is fixedly connected to the groove wall of each T-shaped groove 224. The piston cylinder 217 is tightly engaged with a cylinder plug 225 in the bottom cylinder. Springs 226 are fixedly connected to both sides of the cylinder plug 225 and the outer wall of the bottom cylinder of the piston cylinder 217.

[0023] Using the above scheme: The condensate generated by the gas inside the gas tank 201 under prolonged passive negative pressure will, guided by the conical groove plate 221, collect at the multiple water inlets 220 of the piston cylinder 217. Liquid then enters the piston cylinder 217 through these inlets. The motor 212, programmed by the system, will periodically start, driving the rotating rod 213 and the cam 214 to rotate. Figure 5 and Figure 6 As shown, the rotating cam 214 will rotate and press against the lower elastic telescopic member 215. The rubber pressure plate 216 fixed to the elastic telescopic member 215 will have a limiting effect due to the multiple locking balls 222 that are installed and engaged with the inner wall of the piston cylinder 217. Therefore, the rubber pressure plate 216 will not move downward initially. As a result, the elastic telescopic member 215 will be subjected to force and generate its own elastic contraction. The downward contraction of the rod of the elastic telescopic member 215 will synchronously drive each L-shaped... The elastic telescopic rod 218 moves downwards as a whole, and the passively moving L-shaped elastic telescopic rod 218 will drive the arc-shaped baffle 219 to move downwards and block the water inlet 220. At the same time, the arc-shaped baffle 219 will also press against the conical groove plate 221. At that time, under the continuous passive rotation and pressure of the cam 214, the locking force of the ball 222 can no longer support the rubber pressure plate 216 to remain in the piston cylinder 217. The ball 222 will disengage from the groove in the piston cylinder 217 and compress the spring 223. Force enters the T-shaped groove 224, and the rubber pressure plate 216 is passively piston-like inside the piston cylinder 217, generating extrusion force. At the same time, each L-shaped elastic telescopic rod 218 will elastically contract under the force, cooperating with the downward movement of the rubber pressure plate 216, thereby squeezing the condensate collected in the piston cylinder 217 under the extrusion force. Simultaneously, the cylinder plug 225, which is stuck inside the piston cylinder 217, is also subjected to the extrusion force of the rubber pressure plate 216. The cylinder plug 225, which is detached from the piston cylinder 217, stretches two springs 226. The installation of the springs 226 facilitates the subsequent automatic reset of the cylinder plug 225, thereby draining the collected condensate and preventing the condensate generated by the negative pressure in the gas storage tank 201 from persisting and having an adverse effect on the gas storage tank 201. Furthermore, the blocking of the water inlet 220 when the piston cylinder 217 drains water allows for the discharge of a large amount of condensate collected in the piston cylinder 217, with a small amount of gas discharged, effectively reducing the waste of gas resources.

[0024] In addition, a gas supply mechanism is connected to the gas storage tank 201. The gas supply mechanism is an existing structure and will not be described in detail here.

[0025] When the cam 214 is passively rotated 90 degrees to a vertical position, it completes the negative pressure piston movement, thereby discharging the condensate. During this process, the rubber plate 216 is also compressed, which simultaneously drives the spring 211, which is fixed together with the ear plate 210, to deform. The spring 211 is installed so that when the cam 214 is passively rotated 90 degrees again to its original horizontal position after the continuous rotation of the motor 212, it can directly drive the elastic telescopic component 215, the rubber plate 216, and multiple L-shaped elastic telescopic rods 218, which are no longer under pressure, to elastically reset, so that the ball 222 is locked with the inner wall of the piston cylinder 217 again, thus ending the entire reset movement.

[0026] A meshing assembly 227 is fixedly connected to the rod body of the rotating rod 213. The meshing assembly 227 consists of two meshing bevel gears. A rotating rod 228 is fixedly connected to the horizontal bevel gears. The rod body of the rotating rod 228 is rotatably connected to the conical groove plate 221. A meshing assembly 229 is fixedly connected to the bottom end of the rod body of the rotating rod 228. The meshing assembly 229 consists of a spur gear and a gear ring. The spur gear and the gear ring are meshed. Multiple support rods 2291 are slidably connected to the bottom end of the gear ring. Each support rod... The bottom end of 2291 is fixedly connected to the inner wall of the bottom end of the gas storage tank 201. Multiple U-shaped rods 230 are fixedly connected to the inner wall of the toothed ring. A metal paddle 231 is rotatably connected to each U-shaped rod 230. Multiple rectangular slots are circumferentially opened on the cylinder of the piston cylinder 217. Each metal paddle 231 can slide and fit with each rectangular slot. A disc 232 is fixedly connected to the outer walls of the upper and lower ends of each metal paddle 231 and the rod of each U-shaped rod 230. A torsion spring 208 is fixedly connected between every two adjacent discs 232.

[0027] The above solution is adopted: such as Figure 5 , Figure 8 as well as Figure 9As shown, the passively rotating rod 213 also drives the two bevel gears in the meshing assembly 227 to rotate in mutual transmission, thereby driving the rod 228 to rotate at its origin on the conical groove plate 221, which in turn drives the spur gear in the meshing assembly 229 to rotate. The rotating spur gear meshes and drives the gear ring to rotate under the limit of multiple support rods 2291. The passively rotating gear ring drives multiple U-shaped rods 230 and the metal paddles 231 installed on each U-shaped rod 230 to rotate synchronously. As a result, the passively rotating metal paddles 231 will inevitably come into contact with the piston. The rectangular groove on the outer wall of the cylinder 217 allows the metal lever 231 to be stressed through the upper and lower fixed discs 232, which in turn twist the torsion springs 208 fixed in the two upper discs 232. Since the two lower discs 232 and the U-shaped rod 230 are connected and rotate through each other, the metal lever 231 will be stressed intermittently under continuous rotation and collide with the wall of multiple rectangular grooves, thereby causing vibration of the piston cylinder 217. The inertial force and shear force generated by the vibration can destroy the adhesion between water molecules and the metal wall, making it difficult for the water film to exist stably, and causing it to slide off faster under the action of gravity, reducing residue.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A secondary suspension mechanism for rail locomotives and rolling stock, comprising a secondary suspension mechanism body (1) and a drying and drainage section (2), characterized in that: The secondary suspension mechanism body (1) includes a bogie (101), two air springs (102), and four hydraulic springs (103). The two air springs (102) installed on the bogie (101) serve as elastic elements to buffer vertical vibration and improve ride comfort. The four hydraulic springs (103) installed between the side beam of the bogie (101) frame and the vehicle body frame are used to bear the force transmission path and avoid tilting of the secondary suspension mechanism body (1). The drying and drainage section (2) includes a gas storage tank (201) and a gas filter plate (207). A partition plate (209) is fixedly connected to the inner wall of the gas filter plate (207). Drying particles for drying the gas are placed inside the gas filter plate (207). A driving structure is provided on the gas filter plate (207) to drive the gas filter plate (207) to rotate 180 degrees. A piston cylinder (217) is fixedly connected to the gas storage tank (201). A rubber pressure plate (216) is slidably connected to the inner wall of the piston cylinder (217). Four water inlet holes (220) are circumferentially opened on the cylinder body of the piston cylinder (217). A conical groove plate (221) is fixedly connected between the gas storage tank (201) and the piston cylinder (217) to facilitate the rapid entry of condensate from the four water inlet holes (220). The gas storage tank (201) is provided with a rotating meshing structure to generate negative pressure in the piston cylinder (217) and discharge the collected condensate. The air tank (201) and the bogie (101) are fixedly connected. A filter pipe (202) is fixedly connected through the air tank (201) at one end near the top. A guide pipe (203) is threadedly connected to the filter pipe (202) away from the air tank (201). The guide pipe (203) away from the filter pipe (202) is fixedly connected through the air spring (102). The air filter tube (202) is made of two sections of tube spliced ​​together. The two sections of the air filter tube (202) are tightly connected by a sealing ring. The inner wall of the air filter tube (202) formed by the two sections is fixedly connected with a semi-circular plate. The plates of the two semi-circular plates are tightly connected to the two end plates of the air filter disc (207). The rotary meshing structure includes a motor (212) fixedly connected to the outer wall of the gas storage tank (201). A rotating rod (213) is fixedly connected to the output shaft of the motor (212). The rod body of the rotating rod (213) and the tank body of the gas storage tank (201) are rotatably connected through each other. A cam (214) is also fixedly connected to the rod body of the rotating rod (213). An elastic telescopic member (215) is fixedly connected to the top outer wall of the rubber pressure plate (216). The top of the elastic telescopic member (215) and the outer surface of the wheel of the cam (214) are slidably pressed together. The piston cylinder (217) has ear plates (210) fixedly connected to the inner walls of both ends near the top. A spring (211) is fixedly connected between the bottom plate of the two ear plates (210) and the top outer wall of the rubber pressure plate (216). Four L-shaped elastic telescopic rods (218) are fixedly connected to the elastic telescopic member (215). Each L-shaped elastic telescopic rod (218) has an arc-shaped baffle (219) fixedly connected to its bottom end. Each arc-shaped baffle (219) can slide and fit against the outer wall of the piston cylinder (217). The bottom end of each arc-shaped baffle (219) can intermittently fit against the inner wall of the conical groove plate (221). The conical groove plate (221) is fixedly connected to the inner wall of the gas storage tank (201). The rubber pressure plate (216) is provided with a retaining ball (222) in a circumferential manner. The inner wall of the piston cylinder (217) is provided with a plurality of retaining grooves that are respectively engaged with each retaining ball (222). A second spring (223) is fixedly connected to the ball of each retaining ball (222). The inner wall of the rubber pressure plate (216) is provided with a T-shaped column groove (224) that is in close contact with and slidably connected to each retaining ball (222). The other end of each second spring (223) is fixedly connected to the groove wall of each T-shaped column groove (224). A plug (225) is tightly fitted into the bottom end of the piston cylinder (217), and springs (226) are fixedly connected to both sides of the plug (225) and the outer wall of the bottom end of the piston cylinder (217).

2. The secondary suspension mechanism for rail locomotives and rolling stock according to claim 1, characterized in that: The drive structure includes a micro motor (204) fixedly connected to the outer wall of the top end of the filter pipe (202) and a protective cover (205). The output shaft of the micro motor (204) and one end of the protective cover (205) are rotatably connected through each other, and a rubber wheel (206) is fixedly connected to the output shaft of the micro motor (204).

3. The secondary suspension mechanism for rail locomotives and rolling stock according to claim 2, characterized in that: The top end of the filter pipe (202) has an arc-shaped groove that can slide and fit with the body of the rubber wheel (206). The body of the rubber wheel (206) and the outer wall of the filter disc (207) are fitted and rotated together. The inner wall of the two sections of the filter pipe (202) is provided with an annular groove that fits and engages with the body of the filter disc (207).

4. The secondary suspension mechanism for rail locomotives and rolling stock according to claim 1, characterized in that: The separator (209) is used to separate the dry particles in the filter disc (207) into two parts for switching use.

5. The secondary suspension mechanism for rail locomotives and rolling stock according to claim 1, characterized in that: The first rotating rod (213) is also fixedly connected to a first meshing component (227). The first meshing component (227) is composed of two bevel gears that mesh with each other. The second rotating rod (228) is fixedly connected to the bevel gear in a horizontal state. The rod body of the second rotating rod (228) and the conical groove plate (221) are connected in a limited rotational connection. The bottom end of the rod body of the second rotating rod (228) is also fixedly connected to a second meshing component (229). The second meshing component (229) is composed of a spur gear and a toothed ring. The spur gear and the toothed ring are meshed together. The bottom end of the toothed ring is slidably connected to multiple support rods (2291). The bottom end of each support rod (2291) is fixedly connected to the inner wall of the bottom end of the gas storage tank (201).

6. The secondary suspension mechanism for rail locomotives and rolling stock according to claim 5, characterized in that: Multiple U-shaped rods (230) are fixedly connected to the inner wall of the toothed ring. A metal paddle (231) is rotatably connected to each U-shaped rod (230). Multiple rectangular slots are circumferentially opened on the cylinder of the piston cylinder (217). Each metal paddle (231) can slide and fit with each rectangular slot. A disc (232) is fixedly connected to the outer walls of the upper and lower ends of each metal paddle (231) and to the rod of each U-shaped rod (230). A torsion spring (208) is fixedly connected between every two discs (232).

Images