Efficient damping and buffering device for bullet train

Abstract

The utility model discloses an efficient shock-absorbing and buffering device for a bullet train, which belongs to the field of bullet trains and comprises a connecting shaft sleeve sleeved on a shaft lever of a wheel and a shock-absorbing and buffering mechanism mounted between the connecting shaft sleeve and a beam frame of the bullet train. The buffering mechanism comprises a telescopic rod piece and a buffering spring slidably arranged outside the telescopic rod piece in a sleeving mode, the bottom of the telescopic rod piece is sleeved with an adjusting plate making contact with the bottom of the buffering spring in a threaded mode, and the top of the telescopic rod piece is slidably sleeved with a lantern ring making contact with the top of the buffering spring. The outer side of the end of the telescopic rod piece is fixedly sleeved with a fixing plate used for limiting the lantern ring. The spring fixedly installed on the bullet train damping and buffering device is changed into the design convenient to disassemble and replace, due to the design convenient to disassemble, when the spring is damaged or needs to be replaced, maintenance personnel can operate more quickly, the downtime of the bullet train is shortened, the maintenance efficiency is improved, the maintenance cost is reduced, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicles, in particular to a high-efficiency shock-absorbing and buffering device for motor vehicles. Background Art

[0002] The high-efficiency shock-absorbing and buffering device for motor vehicles is a device that uses advanced oil-gas mixed shock-absorbing technology. This device combines the characteristics of gas (usually nitrogen) and oil to achieve a better shock-absorbing effect.

[0003] Upon investigation, the Chinese utility model patent with announcement number CN213292297U discloses an all-round buffer device for the EMU bogie. The all-round buffer device for the EMU bogie completes the connection between the wheel and the bogie body by fixing a fixed rod that is slidably plugged into the bottom end of the bogie body on the wheel axle connecting sleeve, and then a buffer spring is sleeved on the outside of the fixed rod and located between the connecting sleeve and the bogie body to prevent the bogie body and the connecting sleeve from being damaged, and at the same time, it plays a role in shock absorption and buffering for the bogie body. However, since the bogie body is installed at the bottom of the car frame and the wheels are installed on the guide rails during the use of the EMU, when the buffer spring between the bogie body and the wheel is damaged, the buffer spring cannot be replaced in time, and it is necessary to stop for a long time and disassemble the connection between the wheel and the bogie body to complete the disassembly and replacement of the buffer spring, which affects the vehicle operation time.

[0004] Therefore, the utility model provides a high-efficiency shock-absorbing and buffering device for a motor vehicle to solve the above-mentioned problem. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a high-efficiency shock-absorbing and buffering device for motor vehicles, aiming to solve the problems proposed in the background technology that the spring on the existing shock-absorbing and buffering device for motor vehicles is installed between the wheel and the bogie body through a fixing rod, and then when the spring is damaged, it is necessary to stop the vehicle for a long time and disassemble the connection between the wheel and the bogie body to complete the disassembly and replacement of the buffer spring, which affects the running time of the vehicle.

[0007] (II) Technical solution

[0008] To achieve the above object, the utility model provides the following technical solutions: a high-efficiency shock-absorbing and buffering device for a motor vehicle, comprising a connecting sleeve sleeved on the axle rod of the wheel and a shock-absorbing and buffering mechanism installed between the connecting sleeve and the beam frame of the motor vehicle;

[0009] The difference from the existing shock-absorbing and buffering device is that: the shock-absorbing and buffering mechanism includes a telescopic rod and a buffer spring slidably sleeved on the outside of the telescopic rod, the bottom thread sleeve of the telescopic rod is provided with an adjustment plate in contact with the bottom of the buffer spring, the top sliding sleeve of the telescopic rod is provided with a ring in contact with the top of the buffer spring, and the outer fixed sleeve of the end of the telescopic rod is provided with a fixing plate for limiting the ring; by changing the spring fixedly installed on the EMU shock-absorbing and buffering device to a design that is easy to disassemble and replace, the easy-to-disassemble design allows maintenance personnel to operate more quickly when the spring is damaged or needs to be replaced, thereby reducing vehicle downtime, improving maintenance efficiency, reducing maintenance costs, extending equipment life, and improving safety.

[0010] Preferably, the bottom of the connecting sleeve is fixedly connected to a bottom plate connected to the bottom end of the shock absorbing and buffering mechanism, and the bottom end of the beam frame is fixedly connected to a top plate connected to the top end of the shock absorbing and buffering mechanism.

[0011] Preferably, a hydraulic device is fixedly mounted on the top end of the connecting sleeve, and an output end of the hydraulic device is fixedly connected to the bottom end of the top plate.

[0012] Preferably, a plurality of protruding rods are fixedly connected to the outer circumference of the adjustment plate at equal intervals.

[0013] Preferably, the telescopic rod is specifically a hydraulic cylinder, the bottom of the hydraulic cylinder is provided with an external thread threadedly connected to the adjusting plate, the output end of the hydraulic cylinder is fixedly connected to a piston rod, the ring is slidably sleeved on the top of the piston rod, and the fixed plate is fixedly sleeved on the outside of the end of the piston rod.

[0014] Preferably, the top and bottom ends of the telescopic rod are fixedly connected with threaded sleeves, the bottom plate and the top plate are provided with plugging grooves for plugging the threaded sleeves, and the bottom plate and the top plate are provided with hinge components for fixing the position of the threaded sleeves.

[0015] Preferably, the hinge assembly includes a hinge plate hinged to the base plate or the top plate through a hinge seat, a locking screw threadedly inserted into the hinge plate and threadedly inserted into the threaded sleeve, and a hexagonal plate is fixedly sleeved on the locking screw; the locking screw can be locked in position through the hinge assembly to avoid the locking screw being lost due to the back and forth disassembly of the locking screw when the buffer spring is replaced, resulting in a delay in the parking of the motor vehicle; at the same time, through the threaded connection between the locking screw, the hinge plate and the threaded sleeve, the hinge plate can be hinged and rotated, thereby preventing the locking screw from reversing during use.

[0016] Preferably, one end of the hinged plate is fixedly connected to an L-shaped clamping plate, and the ends of the bottom plate and the top plate are both provided with clamping grooves for the L-shaped clamping plate to be clamped.

[0017] (III) Beneficial effects

[0018] The present application changes the fixedly installed spring on the shock-absorbing and buffering device of the motor vehicle to a design that is easy to disassemble and replace. The easy-to-disassemble design allows maintenance personnel to operate more quickly when the spring is damaged or needs to be replaced, thereby reducing vehicle downtime, improving maintenance efficiency, reducing maintenance costs, extending equipment life, and improving safety.

[0019] The shock-absorbing and buffering device is equipped with a hinge assembly, which can lock the position of the locking screw through the hinge assembly, so as to avoid the locking screw being lost due to the back and forth disassembly of the locking screw when the buffer spring is replaced, causing the delayed parking of the motor vehicle; at the same time, through the threaded connection between the locking screw, the hinge plate and the threaded sleeve, since the hinge plate can be hinged and rotated, the locking screw can be prevented from reversing during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a high-efficiency shock-absorbing and buffering device for a motor vehicle;

[0021] Figure 2 It is a schematic diagram of the structure of connecting the bottom plate and the top plate with the connecting sleeve and the beam frame respectively;

[0022] Figure 3 It is a schematic diagram of the structure of the shock absorbing and buffering mechanism;

[0023] Figure 4 It is a schematic diagram of the telescopic rod structure;

[0024] Figure 5 Schematic diagram of the bottom structure of the base plate.

[0025] In the figure:

[0026] 1. Beam; 2. Wheel; 3. Connecting sleeve; 31. Hydraulic device; 4. Bottom plate; 5. Top plate; 6. Shock-absorbing and buffering mechanism; 61. Buffer spring; 62. Hydraulic cylinder; 63. Piston rod; 631. Fixed plate; 64. Threaded sleeve; 65. Ring; 66. Adjusting plate; 661. Protruding rod; 7. Articulated assembly; 71. Articulated plate; 72. Articulated seat; 73. Locking screw; 74. Hexagonal plate; 75. Card slot; 8. Plug slot. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] The utility model provides a high-efficiency shock-absorbing and buffering device for a motor vehicle, such as Figure 1-5 As shown, the shock absorbing and buffering device comprises a connecting sleeve 3 sleeved on the shaft rod of the wheel 2 and a shock absorbing and buffering mechanism (6) installed between the connecting sleeve 3 and the beam frame 1 of the motor vehicle;

[0030] The shock-absorbing and buffering mechanism 6 includes a telescopic rod and a buffer spring 61 slidably sleeved on the outside of the telescopic rod. The bottom thread sleeve of the telescopic rod is provided with an adjusting plate 66 in contact with the bottom of the buffer spring 61. The top sliding sleeve of the telescopic rod is provided with a collar 65 in contact with the top of the buffer spring 61. The outer fixed sleeve of the end of the telescopic rod is provided with a fixing plate 631 for limiting the collar 65. The adjusting plate 66 is connected to the telescopic rod by a threaded connection, so that the buffer spring 61 on the telescopic rod can be disassembled, repaired and replaced conveniently. The easy-to-disassemble design allows maintenance personnel to operate more quickly when the spring is damaged or needs to be replaced, thereby reducing the downtime of the vehicle and improving maintenance efficiency. The quick-replacement design reduces the working hours during the disassembly and assembly process, and also It may reduce the risk of damage to other components caused by complex disassembly and assembly processes, thereby reducing maintenance costs overall; regular replacement of springs can ensure that the performance of the shock absorption system is always in the best condition, effectively extending the service life of the entire shock absorption buffer device and even the vehicle; for vehicles that need to adjust the shock absorption performance according to different road conditions or loads, the detachable spring design facilitates the rapid adjustment of the hardness or type of the spring to meet different needs and enhance the adaptability of the vehicle; a spring system that is easy to inspect and replace helps to timely discover and solve potential shock absorption failure problems and reduce driving safety risks caused by shock absorption system failures; when springs can be easily replaced, springs of different materials or technologies can be used more flexibly to respond to environmental protection or performance improvement needs and optimize resource utilization efficiency;

[0031] When replacing, you only need to rotate the adjustment plate 66 counterclockwise, then unscrew the adjustment plate 66 from the telescopic rod, then remove the buffer spring 61, then install the new buffer spring 61, then screw the adjustment plate 66 onto the telescopic rod, and then adjust the tightness of the buffer spring 61 on the telescopic rod, and then you can replace the buffer spring 61.

[0032] Furthermore, the bottom of the connecting sleeve 3 is fixedly connected to a bottom plate 4 connected to the bottom end of the shock absorbing and buffering mechanism 6 , and the bottom end of the beam frame 1 is fixedly connected to a top plate 5 connected to the top end of the shock absorbing and buffering mechanism 6 .

[0033] Specifically, a hydraulic device 31 is fixedly installed on the top end of the connecting sleeve 3, and the output end of the hydraulic device 31 is fixedly connected to the bottom end of the top plate 5; the hydraulic device 31 is made of the hydraulic equipment on the original motor vehicle.

[0034] Furthermore, a plurality of protruding rods 661 are fixedly connected to the outer circumference of the adjustment plate 66 at equal intervals. The protruding rods 661 facilitate rotation of the adjustment plate 66 and adjustment of the adjustment plate 66. A locking gasket is connected to the adjustment plate 66 to prevent the adjustment plate 66 from reversing.

[0035] Specifically, the telescopic rod in the device is a hydraulic cylinder 62 (but not the only one). The bottom of the hydraulic cylinder 62 is provided with an external thread threadedly connected to the adjustment plate 66. The output end of the hydraulic cylinder 62 is fixedly connected to the piston rod 63. The ring 65 is slidably mounted on the top of the piston rod 63, and the fixed plate 631 is fixedly mounted on the outer side of the end of the piston rod 63.

[0036] The top and bottom ends of the telescopic rod (i.e., the bottom end of the hydraulic cylinder 62 and the top end of the piston rod 63) are fixedly connected with a threaded sleeve 64. The bottom plate 4 and the top plate 5 are both provided with a plug-in groove 8 for the threaded sleeve 64 to be plugged in. The threaded sleeve 64 is fixed in the plug-in groove 8 by a locking screw 73. There is a gap between the opposite ends of the hydraulic cylinder 62 and the piston rod 63 and the opposite ends of the bottom plate 4 and the top plate 5, which makes it convenient to plug the threaded sleeve 64 into the plug-in groove 8. Through the cooperation between the threaded sleeve 64 and the plug-in groove 8, the telescopic rod can be horizontally positioned.

[0037] Example 2

[0038] See attached Figure 1 and attached Figure 5As shown, the bottom plate 4 and the top plate 5 are both provided with an articulated assembly 7 for fixing the position of the threaded sleeve 64, and the articulated assembly 7 includes an articulated plate 71 articulated with the bottom plate 4 or the top plate 5 through an articulated seat 72, and a locking screw 73 threadedly inserted with the threaded sleeve 64 is threadedly inserted on the articulated plate 71, and a hexagonal plate 74 is fixedly sleeved on the locking screw 73; an L-shaped card is fixedly connected to one end of the articulated plate 71, and a card slot 75 for the L-shaped card is provided at the end of the bottom plate 4 and the top plate 5; through the L-shaped card and the card The groove 75 cooperates to fix the position of the hinge plate 71; the locking screw 73 can be locked in position through the hinge assembly 7, so as to avoid the locking screw 73 being lost due to the back and forth disassembly of the locking screw 73 when the buffer spring 61 is replaced, thereby preventing the delay in the parking of the motor vehicle; at the same time, the locking screw 73 is threadedly connected with the hinge plate 71 and the threaded sleeve 64, and the hinge plate 71 can be hinged and rotated, thereby preventing the locking screw 73 from reversing during use;

[0039] When in use, when the hexagonal plate 74 is rotated counterclockwise, the locking screw 73 can be taken out from the inside of the threaded sleeve 64, which makes it convenient to remove the shock-absorbing buffer mechanism 6 and replace the buffer spring 61; when the hexagonal plate 74 is rotated clockwise, the threaded sleeve 64 can be fixed in the plug-in slot 8 to ensure the stability of the installation of the shock-absorbing buffer mechanism 6.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency shock-absorbing and buffering device for a motor vehicle, comprising a connecting sleeve (3) sleeved on the shaft of a wheel (2) and a shock-absorbing and buffering mechanism (6) installed between the connecting sleeve (3) and a beam frame (1) of the motor vehicle; Features: The shock absorbing and buffering mechanism (6) comprises a telescopic rod and a buffer spring (61) slidably sleeved outside the telescopic rod, the bottom thread sleeve of the telescopic rod is provided with an adjustment plate (66) in contact with the bottom of the buffer spring (61), the top sliding sleeve of the telescopic rod is provided with a collar (65) in contact with the top of the buffer spring (61), and the outer fixed sleeve of the end of the telescopic rod is provided with a fixing plate (631) for limiting the collar (65).

2. The high-efficiency shock-absorbing and buffering device for a motor vehicle according to claim 1 is characterized in that: The bottom of the connecting sleeve (3) is fixedly connected to a bottom plate (4) connected to the bottom end of the shock absorbing and buffering mechanism (6), and the bottom end of the beam frame (1) is fixedly connected to a top plate (5) connected to the top end of the shock absorbing and buffering mechanism (6).

3. The high-efficiency shock-absorbing and buffering device for a motor vehicle according to claim 1 is characterized in that: A hydraulic device (31) is fixedly mounted on the top end of the connecting sleeve (3), and an output end of the hydraulic device (31) is fixedly connected to the bottom end of the top plate (5).

4. The high-efficiency shock-absorbing and buffering device for a motor vehicle according to claim 1 is characterized in that: The outer portion of the adjustment plate (66) is fixedly connected with a plurality of protruding rods (661) at equal intervals in the circumferential direction.

5. The high-efficiency shock-absorbing and buffering device for a motor vehicle according to claim 1 is characterized in that: The telescopic rod is specifically a hydraulic cylinder (62), the bottom of the hydraulic cylinder (62) is provided with an external thread threadedly connected to the adjustment plate (66), the output end of the hydraulic cylinder (62) is fixedly connected to the piston rod (63), the collar (65) is slidably sleeved on the top of the piston rod (63), and the fixed plate (631) is fixedly sleeved on the outer side of the end of the piston rod (63).

6. The high-efficiency shock-absorbing and buffering device for a motor vehicle according to claim 2 is characterized in that: The top and bottom ends of the telescopic rod are fixedly connected with a threaded sleeve (64); the bottom plate (4) and the top plate (5) are provided with a plug-in groove (8) for plugging the threaded sleeve (64); and the bottom plate (4) and the top plate (5) are provided with a hinge assembly (7) for fixing the position of the threaded sleeve (64).

7. The high-efficiency shock-absorbing and buffering device for a motor vehicle according to claim 6 is characterized in that: The hinge assembly (7) comprises a hinge plate (71) hinged to a bottom plate (4) or a top plate (5) via a hinge seat (72); a locking screw (73) threadedly inserted into the hinge plate (71) and threadedly inserted into a threaded sleeve (64); and a hexagonal plate (74) is fixedly sleeved on the locking screw (73).

8. The high-efficiency shock-absorbing and buffering device for a motor vehicle according to claim 7 is characterized in that: One end of the hinged plate (71) is fixedly connected to an L-shaped card plate, and the ends of the bottom plate (4) and the top plate (5) are both provided with card slots (75) for the L-shaped card plate to be carded.

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