CN219446982U - Spring limiting structure of primary spring seat - Google Patents

Abstract

The utility model relates to the technical field of railway vehicles, and discloses a spring seat spring limiting structure, which comprises a spring seat base, a spring fixing ring and a rigid stop, wherein a limiting mechanism is arranged in the rigid stop. This spring limit structure of spring holder of a series, through the cooperation of rotating sprocket, driven sprocket, long pivot, chain, drive two screw rods simultaneously and rotate in step when the motor starts, and then through the cooperation of spout and movable block, drive the movable block and carry out the removal of upper and lower direction, adjust the height that adds the elastic stop of becoming rigidity, thereby adjust the distance between the elastic stop of adding the variable rigidity to the roof, thereby change inside and outside spring compression and to the required pressure of rigidity stop and make suspension can adjust according to different driving scenes, increase vehicle maneuverability, increase the variable volume that adds the elastic stop of becoming rigidity inside the rigidity stop through the hemisphere groove that sets up.

Description

Spring limiting structure of primary spring seat

Technical Field

The utility model relates to the technical field of railway vehicles, in particular to a primary spring seat spring limiting structure.

Background

The suspension structure of the primary spring is a key component of the bogie, the suspension structure and suspension parameters of the primary spring influence the operation quality and safety performance of the bogie, the primary spring also bears the transmission of longitudinal force and transverse force and is beneficial to the safe passing of the bogie through an irregular track, and the primary spring comprises: the inner spring, the outer spring, the spring seat, the top plate and other structures, wherein the spring seat not only plays a role in fixing the inner spring and the outer spring, but also can limit the inner spring and the outer spring, and the inner spring and the outer spring are prevented from exceeding the elastic limit of the inner spring and the outer spring when being compressed.

According to a spring seat with a stop and a spring vibration damper (publication No. CN 212796885U), a variable stiffness elastic stop is arranged in a rigid stop in the application, and the stiffness characteristic that the stiffness of the variable stiffness elastic stop is obviously increased along with the increase of a compression amount is utilized, so that the elastic stop force of the variable stiffness elastic stop is greatly increased before the rigid stop plays a role in stopping, and the problems that the impact force is reduced when the rigid stop plays a role in stopping and the rigid stop is protected from being damaged by the impact force are solved.

However, in the actual use process of the device, the position of the rigidity-variable elastic stop is always kept unchanged, so that the overall hardness of the primary spring cannot be changed, the harder primary spring can better absorb the vibration of the ground when the vehicle runs at a high speed, the vehicle can run more stably, the primary spring is softer to increase the comfort during driving when the vehicle runs at a low speed, and the primary spring is required to change different driving conditions; in view of this, we propose a spring seat limit structure.

Disclosure of Invention

The utility model aims to provide a spring limiting structure of a spring seat, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a first spring holder spring limit structure, includes spring holder base, spring retainer plate and rigidity backstop, the inside rigidity backstop that adds becomes rigidity elasticity backstop that is provided with, the inside stop mechanism that is provided with of rigidity backstop, stop mechanism includes:

the transmission cavity is formed in the spring seat base, a motor is fixedly arranged at the right end of the bottom surface of the inside of the transmission cavity, a rotary chain wheel is fixedly arranged on the top output shaft of the motor, a long rotating shaft is fixedly arranged at the left end of the bottom surface of the inside of the transmission cavity, and the top end of the long rotating shaft is rotatably connected with a driven chain wheel;

the number of the sliding grooves is two, the two sliding grooves are respectively formed in the inner wall surfaces of the left side and the right side of the rigid stop, a short rotating shaft is fixedly arranged on the inner top surface of the sliding groove, the bottom end of the short rotating shaft is rotationally connected with a screw rod, the outer side of the screw rod is in threaded connection with a moving block, the upper surface of the moving block is fixedly provided with a baffle plate near one end of the center of the rigid stop, and the inner top surface of the sliding groove is provided with a groove;

the fixed plate is fixedly arranged on one side surface of the moving block, which is close to the center of the rigid stop, and a through hole is formed in the center of the upper surface of the fixed plate;

and the hemispherical groove is formed on the surface of the inner wall of the rigid stop.

Preferably, the bottom ends of the two screws penetrate through the inner walls of the rigid stop and the spring seat base and are fixedly connected with the upper surfaces of the rotary chain wheel and the driven chain wheel respectively.

Preferably, the outer wall of the fixing plate is mutually attached with the inner wall of the rigid stop.

Preferably, the rotating chain wheel is connected with the driven chain wheel through a chain transmission.

Preferably, the size of the groove is matched with the size of the baffle, and the upper end of the baffle is positioned in the groove.

Preferably, the outer wall of the baffle is mutually attached to the inner wall of the chute.

Compared with the prior art, the utility model provides a spring limiting structure of a primary spring seat, which has the following beneficial effects:

1. this spring limit structure of spring holder of a series, through the cooperation of rotating sprocket, driven sprocket, long pivot, chain, drive two screw rods simultaneously and rotate in step when the motor starts, and then through the cooperation of spout and movable block, drive the movable block and carry out the removal of upper and lower direction, adjust the height that adds the elastic stop of becoming rigidity, thereby adjust the distance between the elastic stop of adding the becoming rigidity to the roof, thereby change inside and outside spring compression and to the required pressure of rigidity stop and make suspension can adjust according to different driving scenes, increase vehicle maneuverability.

2. According to the spring limit structure of the spring seat, the deformation amount of the elastic stop with the added variable stiffness in the rigid stop is increased through the hemispherical groove, so that the situation that the elastic stop with the added variable stiffness cannot completely enter the rigid stop due to the rising of the elastic stop with the added variable stiffness and the elastic stop with the added variable stiffness is extruded and damaged by the top plate is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model in front cross section;

FIG. 3 is a schematic diagram of the structure of the present utility model at A;

FIG. 4 is a schematic diagram of the structure of the present utility model at B;

FIG. 5 is a schematic diagram of the structure of the present utility model at C;

FIG. 6 is a schematic diagram of a front cross-sectional configuration of the rigid stop and spring seat base of the present utility model;

fig. 7 is a schematic structural view of the fixing plate of the present utility model.

In the figure: 1. a spring seat base; 2. a spring retainer ring; 3. a rigid stop; 4. adding a variable-rigidity elastic stop; 5. a limiting mechanism; 501. a transmission cavity; 502. a motor; 503. rotating the sprocket; 504. a chain; 505. a long rotating shaft; 506. a driven sprocket; 507. a chute; 508. a short rotating shaft; 509. a screw; 510. a moving block; 511. a fixing plate; 512. a through hole; 513. a baffle; 514. a groove; 515. hemispherical grooves.

Detailed Description

As shown in fig. 1 to 7, the present utility model provides a technical solution: a spring limit structure of a spring seat comprises a spring seat base 1, a spring fixing ring 2 and a rigid stop 3, wherein a rigidity-added elastic stop 4 is arranged in the rigid stop 3, the rigidity-added elastic stop 4 is arranged in the rigid stop 3 through arranging the rigid stop 3 on the spring seat, the rigidity-added characteristic that the rigidity of the rigidity-added elastic stop 4 is obviously increased along with the increase of the compression amount is utilized, the elastic stop force of the rigidity-added elastic stop 4 is greatly increased before the rigid stop 3 plays a role in stopping, so that the collision force of the rigid stop 3 when playing a role in stopping is reduced, the problem that the rigid stop 3 is not damaged by the collision force is solved, the effect of limiting the compression amount of an inner spring and an outer spring is achieved, the compression exceeding limit of the inner spring and the outer spring is avoided, the spring seat base 1, the spring fixing ring 2 and the rigid stop 3 are similar to the principles mentioned in Chinese patent with the authority public number CN212796885U (a spring seat with a stop and a spring vibration damping device) to achieve the same effect, and the prior art means is not repeated in the field.

The inside stop 3 that is provided with stop gear 5, stop gear 5 includes: the transmission cavity 501, the spout 507, fixed plate 511 and hemisphere groove 515, the transmission cavity 501 is seted up inside spring holder base 1, inside bottom surface right-hand member fixed mounting of transmission cavity 501 has motor 502, motor 502's top output shaft fixed mounting has the rotation sprocket 503, can drive rotation sprocket 503 and rotate when motor 502 starts, the inside bottom surface left end fixed mounting of transmission cavity 501 has long pivot 505, the top rotation of long pivot 505 is connected with driven sprocket 506, support driven sprocket 506 through the long pivot 505 of setting, be connected through the chain 504 transmission between rotation sprocket 503 and the driven sprocket 506, rotation sprocket 503 rotates and can drive driven sprocket 506 through chain 504 and rotate in step.

The number of the sliding grooves 507 is two, the two sliding grooves 507 are respectively formed in the inner wall surfaces of the left side and the right side of the rigid stop 3, a short rotating shaft 508 is fixedly arranged on the inner top surface of the sliding grooves 507, a screw 509 is rotatably connected to the bottom end of the short rotating shaft 508, the bottom ends of the two screws 509 penetrate through the rigid stop 3 and the inner wall of the spring seat base 1 and are fixedly connected with the upper surfaces of the rotating chain wheel 503 and the driven chain wheel 506 respectively, when the motor 502 is started, the two screws 509 are driven to rotate synchronously through the rotating chain wheel 503 and the driven chain wheel 506, a movable block 510 is connected to the outer side of the screw 509 in a threaded manner, a baffle 513 is fixedly arranged on one end, close to the center of the rigid stop 3, of the upper surface of the movable block 510, the outer wall of the baffle 513 is mutually attached to the inner wall of the sliding groove 507, a groove 514 is formed in the inner top surface of the sliding groove 507, and the size of the groove 514 is mutually matched with the size of the baffle 513.

The upper end of baffle 513 is located recess 514, set up baffle 513 and can block adding and become rigidity elasticity backstop 4, avoid adding and become rigidity elasticity backstop 4 extrusion screw 509 and lead to screw 509 to warp, influence the rotation of screw 509, fixed plate 511 fixed mounting is being close to one side surface of rigidity backstop 3 department at movable block 510, the outer wall of fixed plate 511 and the inner wall of rigidity backstop 3 laminating each other, the upper surface center department of fixed plate 511 has seted up through-hole 512, fixed plate 511 fixed mounting is between the crack of two movable blocks 510, when the screw 509 synchronous rotation of both sides, can drive movable block 510 through the connection and the spacing of movable block 510 of both sides, and then adjust the height that adds and become rigidity elasticity backstop 4, thereby adjust and add the distance between rigidity elasticity backstop 4 to the roof, thereby change the required pressure of inside and outside spring compression to rigidity backstop 3 and make suspension become "hard", hemispherical groove 515 is set up at the inner wall surface of rigidity backstop 3, hemispherical groove 515 has the supreme higher and higher, when adding and becoming elasticity backstop 4 and upwards moves, when adding and becoming to become elasticity backstop 4 and carrying out the movement in the up direction, can not take place the condition that the rigidity is increased and become elasticity and become the rigidity backstop 4 and become the elasticity and become the inside and become the elasticity and stop 4 and take place and gradually and become the rigidity and become.

In the utility model, when the automobile steering device is used, the motor 502 is started, the two screws 509 are simultaneously driven to synchronously rotate through the cooperation of the rotating chain wheel 503, the driven chain wheel 506, the long rotating shaft 505 and the chain 504, and then the movable block 510 is driven to move up and down through the cooperation of the sliding groove 507 and the movable block 510, so that the height of the rigidity-added elastic stop 4 is adjusted, the distance between the rigidity-added elastic stop 4 and a top plate is adjusted, the pressure required by the compression of the inner spring and the outer spring to the rigidity stop is changed, the suspension system can be adjusted according to different driving scenes, the steering performance of the automobile is improved, the deformable quantity of the rigidity-added elastic stop 4 in the rigidity stop 3 is increased through the arranged hemispherical groove 515, and the condition that the rigidity-added elastic stop 4 cannot completely enter the inside of the rigidity stop 3 and the rigidity-added elastic stop 4 'overflows' and is extruded and damaged by the top plate is avoided.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (6)

1. A spring limit structure of a spring seat comprises a spring seat base (1), a spring fixing ring (2) and a rigid stop (3), wherein a rigidity-variable elastic stop (4) is arranged inside the rigid stop (3), and the spring limit structure is characterized in that: the inside stop (3) that is provided with stop gear (5), stop gear (5) include:

the transmission cavity (501), the transmission cavity (501) is set up inside spring seat base (1), the inside bottom surface right-hand member of transmission cavity (501) has motor (502), the top output shaft fixed mounting of motor (502) has rotation sprocket (503), the inside bottom surface left end fixed mounting of transmission cavity (501) has long pivot (505), the top of long pivot (505) rotates and is connected with driven sprocket (506);

the number of the sliding grooves (507) is two, the two sliding grooves (507) are respectively formed in the inner wall surfaces of the left side and the right side of the rigid stop (3), a short rotating shaft (508) is fixedly arranged on the inner top surface of the sliding groove (507), a screw (509) is rotatably connected to the bottom end of the short rotating shaft (508), a moving block (510) is connected to the outer side of the screw (509) in a threaded manner, a baffle (513) is fixedly arranged on one end, close to the center of the rigid stop (3), of the upper surface of the moving block (510), and a groove (514) is formed in the inner top surface of the sliding groove (507);

the fixed plate (511), the fixed plate (511) is fixedly arranged on one side surface of the moving block (510) close to the center of the rigid stop (3), and a through hole (512) is formed in the center of the upper surface of the fixed plate (511);

a hemispherical groove (515), the hemispherical groove (515) being opened on the inner wall surface of the rigid stop (3).

2. The primary spring seat spring retention structure of claim 1, wherein: the bottom ends of the two screws (509) penetrate through the inner walls of the rigid stop (3) and the spring seat base (1) and are fixedly connected with the upper surfaces of the rotary chain wheel (503) and the driven chain wheel (506) respectively.

3. The primary spring seat spring retention structure of claim 1, wherein: the outer wall of the fixed plate (511) is mutually attached to the inner wall of the rigid stop (3).

4. The primary spring seat spring retention structure of claim 1, wherein: the rotating chain wheel (503) is in transmission connection with the driven chain wheel (506) through a chain (504).

5. The primary spring seat spring retention structure of claim 1, wherein: the size of the groove (514) is matched with that of the baffle (513), and the upper end of the baffle (513) is positioned inside the groove (514).

6. The primary spring seat spring retention structure of claim 1, wherein: the outer wall of the baffle (513) is mutually attached to the inner wall of the chute (507).