CN214028631U

CN214028631U - Suspension positioning device and bogie

Info

Publication number: CN214028631U
Application number: CN202120039832.XU
Authority: CN
Inventors: 公衍军; 魏家麒; 向琴; 段卫军; 姚凯
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-08-24
Anticipated expiration: 2031-01-07

Abstract

The utility model relates to a suspension positioning device and a bogie, wherein the suspension positioning device is arranged between an axle box and a framework, the suspension positioning device comprises a rubber pile, a positioning pull rod and a steel round spring, and the steel round spring is arranged between the top end of the axle box and the framework; the rubber is stacked between a front side connecting point of the axle box and the framework, the positioning pull rod is connected between a rear side connecting point of the axle box and the framework, the first end of the positioning pull rod is connected with the axle box through a spherical hinge assembly, and a rubber node is arranged between the second end of the positioning pull rod and the framework; one of the front-side connection point and the rear-side connection point has a height higher than an axial height of the axle box, and the other has a height lower than the axial height of the axle box. The requirement of the axle box on spatial arrangement can be reduced while the positioning rigidity of the axle box is ensured.

Description

Suspension positioning device and bogie

Technical Field

The utility model relates to a bogie technical field, concretely relates to hang positioner and bogie.

Background

In the existing suspension positioning device of the bogie, the front side and the rear side of an axle box are respectively provided with a steel round spring and a rubber stack, wherein the steel round spring is used for bearing vertical load, and the rubber stack is used for bearing axial load and longitudinal load, but the structure volume of the rubber stack arranged in the steel round spring is larger, and the requirement on the space arrangement of the axle box is higher, so that the requirement on the space arrangement can be reduced while the stable positioning of the axle box is realized, and the technical problem needed to be solved by technical personnel in the field is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hang positioner and bogie can reduce its requirement to the spatial arrangement when guaranteeing axle box location rigidity.

In order to solve the technical problem, the utility model provides a suspension positioning device which is arranged between an axle box and a framework, the suspension positioning device comprises a rubber pile, a positioning pull rod and a steel round spring, and the steel round spring is arranged between the top end of the axle box and the framework; the rubber is stacked between a front side connecting point of the axle box and the framework, the positioning pull rod is connected between a rear side connecting point of the axle box and the framework, a first end of the positioning pull rod is connected with the axle box through a spherical hinge assembly, and a rubber node is arranged between a second end of the positioning pull rod and the framework; one of the front side connection point and the rear side connection point has a height higher than an axial height of the axle box, and the other has a height lower than the axial height of the axle box.

The steel round spring is arranged between the top end of the axle box and the framework, so that the axle box is positioned and vertical load is borne from the vertical direction, the steel round spring is arranged at the top end of the axle box, the front side of the axle box is only provided with the rubber pile for positioning, the size of the rubber pile at the front side of the axle box can be reduced, the overall structure and the size of the suspension positioning device are reduced, the interference with other peripheral parts is avoided, and the requirement on the installation space is reduced.

The height of the front side connecting point of the axle box is higher than the axial height of the axle box, and the height of the rear side connecting point is lower than the axial height of the axle box, or the height of the front side connecting point is lower than the axial height of the axle box, and the height of the rear side connecting point is higher than the axial height of the axle box, so that the rubber piles and the positioning pull rods can play a role in balancing the nodding moment of the axle box from the front side and the rear side. In addition, the rear side connecting point of the axle box is connected with the first end of the positioning pull rod through the spherical hinge assembly, so that the torsional load caused by axial and vertical displacement of the wheel pair and the framework can be released, the local load of the axle box is reduced, and the stress condition of the connecting part at the two ends of the positioning pull rod is improved. And a rubber node is arranged between the second end and the framework, can transmit torque and is matched with the front rubber pile to realize the rigidity target required by design. The positioning device can realize the buffering function while realizing the positioning, thereby reducing the vibration and avoiding the friction and noise caused by rigid collision.

Optionally, the ball pivot subassembly includes spherical connector and connecting portion, spherical connector with first end is fixed, connecting portion can with the rear side tie point is fixed, connecting portion be equipped with the connection chamber of spherical connector looks adaptation, spherical connector is located connect the intracavity and can for it rotates around its centre of sphere to connect the chamber.

Optionally, the first end is provided with a stud, and the spherical connector is provided with a threaded hole matched with the stud.

Optionally, the end of the first end is further provided with a yielding structure along the circumferential direction.

Optionally, a cross section of the abdicating structure is tapered from the second end to the first end along the axial direction of the positioning pull rod.

Optionally, the connecting portion include connector and closing cap, the connector with the connection can be dismantled to the closing cap, the connector is equipped with the recess, the inner wall of recess is equipped with first spherical structure, the closing cap is equipped with second spherical structure, the closing cap can the shutoff the open end of recess makes second spherical structure with first spherical structure encloses to close and forms connect the chamber, first end pass the closing cap and with spherical connector is connected.

Optionally, the cover is fixed to the inner wall of the groove through threads.

Optionally, the second end is equipped with the mounting hole, the rubber node includes dabber, sleeve and rubber sleeve, the dabber passes the sleeve, the rubber sleeve presss from both sides and locates the outer wall of dabber with between the telescopic inner wall, just the both ends of dabber are located outside the sleeve and be equipped with the fixed orifices respectively, the fixed orifices be used for through the bolt with the framework is fixed, the sleeve can press fitting in the mounting hole.

The utility model also provides a bogie, it includes framework, axle box and as above hang positioner.

The technical effect of the bogie with the suspension positioning device is similar to that of the suspension positioning device, and is not described herein again for saving space.

Drawings

Fig. 1 is a schematic structural diagram of a suspension positioning device according to an embodiment of the present invention in an installation state;

FIG. 2 is a schematic structural view of the positioning rod, the ball joint assembly and the rubber node in FIG. 1 in an installed state;

fig. 3 is a top view of fig. 2.

In the accompanying fig. 1-3, the reference numerals are illustrated as follows:

1-rubber pile;

2-steel round spring, 21-positioning shaft;

3-positioning pull rod, 31-first end, 311-abdicating structure, 32-second end;

4-spherical hinge component, 41-spherical connector, 42-connecting part, 421-connecting body, 422-sealing cover, 423-connecting piece;

5-rubber node, 51-mandrel, 511-fixing hole, 52-rubber sleeve, 53-sleeve;

6-axlebox, 61-front attachment point, 62-back attachment point, 63-axis;

7-framework.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment of the utility model provides a hang positioner and bogie, wherein, the bogie includes framework 7, axle box 6 and the above-mentioned positioner that hangs, hangs positioner and locates between axle box 6 and the framework 7. Specifically, as shown in fig. 1, the suspension positioning device comprises a rubber pile 1, a positioning pull rod 3 and a steel round spring 2, wherein the steel round spring 2 is arranged between the top end of an axle box 6 and a framework 7 so as to position the axle box 6 from the vertical direction and bear the vertical load; the rubber piles 1 and the positioning pull rods 3 are respectively located on the front side and the rear side (longitudinal) of the axle box 6, specifically, the rubber piles 1 are arranged between a front side connecting point 61 of the axle box 6 and a framework 7 to transfer axial loads and longitudinal loads (wherein, the axial direction refers to the left and right direction of the bogie in a use state, and the longitudinal direction refers to the front and rear direction), the positioning pull rods 3 comprise a first end 31 and a second end 32, wherein the first end 31 is connected with a rear side connecting point 62 of the axle box 6 through a spherical hinge assembly 4, and a rubber node 5 is arranged between the second end 32 and the framework 7.

Meanwhile, the height of the front side connecting point 61 of the axle box 6 is higher than the height of the axis 63 of the axle box 6, and the height of the rear side connecting point 62 is lower than the height of the axis 63 of the axle box 6, or the height of the front side connecting point 61 is lower than the height of the axis 63 of the axle box 6, and the height of the rear side connecting point 62 is higher than the height of the axis 63 of the axle box 6, so that the rubber pile 1 and the positioning pull rod 3 can play a role of balancing the nodding moment of the axle box 6 from the front side and the rear side.

In this embodiment, the steel round spring 2 is disposed at the top end of the axle box 6, and only the rubber pile 1 is disposed at the front side of the axle box 6 for positioning, so that the volume of the rubber pile 1 at the front side of the axle box 6 can be reduced, thereby reducing the overall structure and volume of the suspension positioning device, avoiding interference with other peripheral components, and reducing the requirement for installation space. In addition, the rear side connecting point 62 of the axle box 6 is connected with the first end 31 of the positioning pull rod 3 through the spherical hinge assembly 4, so that the torsional load caused by axial and vertical displacement of the wheel set and the framework 7 can be released, the local load of the axle box 6 is reduced, and the stress condition of the connecting part at the two ends of the positioning pull rod 3 is improved. And a rubber node 5 is arranged between the second end 32 and the framework 7, can transmit torque and is matched with the front rubber stack 1 in longitudinal rigidity, so that the rigidity target required by design is realized. The positioning device can realize the buffering function while realizing the positioning, thereby reducing the vibration and avoiding the friction and noise caused by rigid collision.

As shown in fig. 1, a positioning shaft 21 may be further disposed in the steel round spring 2 to ensure the position stability of the axle box 6 during the vibration or shaking process, and to avoid the steel round spring 2 from being bent or even crushed. The positioning shaft 21 can be specifically set according to the actual situation (such as the length-diameter ratio of the steel round spring 2).

In the above embodiment, as shown in fig. 2 and 3, the ball joint assembly 4 includes a spherical joint 41 and a connecting portion 42, wherein the spherical joint 41 is fixed to the first end 31, the connecting portion 42 can be fixed to a rear connecting point 62 of the axle box 6, the connecting portion 42 is provided with a connecting cavity matched with the spherical joint 41, and the spherical joint 41 is located in the connecting cavity and can rotate around the spherical center relative to the connecting cavity. Or, in this embodiment, the spherical joint 41 may be fixed to the rear connection point 62 of the axle box 6, the connection portion 42 may be fixed to the first end 31, and the spherical joint may be connected to the first end 31 of the positioning rod 3, and the connection portion 42 may be fixed to the axle box 6, so as to simplify the manufacturing process and the overall structure.

Further, first end 31 is equipped with the double-screw bolt, and spherical connector 41 is equipped with the screw hole with double-screw bolt looks adaptation, through threaded connection between first end 31 and the spherical connector 41, perhaps, also can be fixed this spherical connector 41 and first end 31 through modes such as welding, also perhaps directly sets up spherical connector 41 and first end 31 into the integral type structure equally, and when passing through threaded connection, can make overall structure simple and the dismouting operation of being convenient for. Of course, the first end 31 may be provided with a threaded hole, the spherical connector 41 may be provided with a stud, and the threaded connection between the two may also be realized, and when the first end 31 of the positioning pull rod 3 is provided with a stud, the spherical connector 41 is provided with a threaded hole, which is convenient for processing operation.

In the above embodiment, the end of the first end 31 is further provided with a receding structure 311 along the circumferential direction, and the receding structure 311 can ensure that the positioning pull rod 3 and the connecting portion 42 are prevented from interfering when the spherical connector 41 rotates around the spherical center thereof in the connecting cavity. Specifically, in this embodiment, the cross section of the abdicating structure 311 is a tapered structure, specifically, the second end 32 is tapered toward the first end 31 along the axial direction of the positioning pull rod 3, or the abdicating structure 311 may be directly set as a small diameter section, the sectional area of the small diameter section is smaller than the sectional area of the middle portion (the portion between the first end 31 and the second end 32) of the positioning pull rod 3, and when the abdicating structure 311 is set as a tapered structure, the structural strength of the positioning pull rod 3 can be ensured while ensuring that the first end 31 does not interfere with the connecting portion 42.

In the above embodiment, as shown in fig. 3, the connection portion 42 specifically includes a connection body 421 and a cover 422, where the connection body 421 has a groove, the inner wall of the groove is provided with a first spherical structure, the cover 422 is provided with a second spherical structure, and the cover 422 can close the open end of the groove, so that the second spherical structure and the first spherical structure can enclose to form the connection cavity, that is, an area enclosed by the first spherical structure and the second spherical structure is a connection cavity adapted to the spherical structure, the first end 31 passes through the cover 422 and is connected to the spherical connector 41, the cover 422 is an annular structure, a through hole is provided in the middle of the cover 422 (the aperture of the through hole is larger than that of the threaded hole), and the stud of the first end 31 passes through the through hole and is connected and fixed to the spherical connector 41, which is convenient to operate.

Since the cover 422 and the connecting body 421 are detachably connected, the disassembling and assembling operation of the spherical connector 41 is facilitated, and in this embodiment, the cover 422 and the connecting body 421 can be fixed by welding or the like, and the detachable connection facilitates the disassembling and assembling operation. Of course, in this embodiment, the sealing cover 422 and the connecting body 421 may be fixedly connected or integrally formed, and a through hole and a rear cover are formed on an end surface of the connecting body 421, which is far away from the positioning rod 3, and the spherical connector 41 is installed in the installation cavity through the through hole and then sealed by the rear cover. The sealing cover 422 is more convenient to operate.

Further, in this embodiment, through thread tightening between the inner wall of closing cap 422 and recess, it is specific, the outer wall of closing cap 422 is equipped with the external screw thread, and the inner wall of the open end of recess is equipped with the internal thread, perhaps, can also with realize dismantling the connection through modes such as joint between closing cap 422 and the recess can, and threaded connection simple structure and connection stability are better.

In the above embodiment, the connecting portion 42 is fixed to the rear side connecting point 62 of the axle box 6 by a bolt. Specifically, as shown in fig. 2, two opposite sides of the connecting portion 42 are respectively provided with a connecting member 423, and the connecting member 423 is provided with a through hole and can be connected and fixed with the axle box 6 through a bolt, so that the assembling and disassembling operations are facilitated. Alternatively, the connecting portion 42 may be provided with a screw, the axle box 6 may be correspondingly provided with a through hole, and the screw may pass through the through hole and be fixed by a nut. Of course, in this embodiment, the connecting portion 42 and the axle box 6 may be fixed by welding or the like, and the bolt connection facilitates the disassembling and assembling operation.

In addition, a rubber node 5 is arranged between the second end 32 of the positioning pull rod 3 and the frame 7, specifically, the second end 32 is provided with a mounting hole, the rubber node 5 comprises a rubber sleeve 52 and a mandrel 51, specifically, the mandrel 51 passes through the mounting hole, the rubber sleeve 52 is clamped between the outer wall of the mandrel 51 and the inner wall of the mounting hole, two ends of the mandrel 51 are respectively located outside two ends of the mounting hole, and two ends of the mandrel 51 are respectively provided with a fixing hole 511 which can be connected and fixed with the frame 7 through bolts. Or, in this embodiment, the outer wall of the rubber sleeve 52 may further be provided with a sleeve 53, that is, the rubber sleeve 52 is sandwiched between the outer wall of the mandrel 51 and the inner wall of the sleeve 53, and when the rubber node is mounted, the sleeve 53 is pressed in the mounting hole, and with this structure, the sleeve 53, the rubber sleeve 52 and the mandrel 51 are mounted as the integral rubber node 5 and the mounting hole of the second end 32, and the rubber node 5 can be directly purchased as a whole, so that the mounting operation can be simplified, and the mounting efficiency can be improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A suspension positioning device is arranged between an axle box (6) and a framework (7), and is characterized by comprising a rubber pile (1), a positioning pull rod (3) and a steel round spring (2), wherein the steel round spring (2) is arranged between the top end of the axle box (6) and the framework (7);

the rubber pile (1) is arranged between a front side connecting point (61) of the axle box (6) and the framework (7), the positioning pull rod (3) is connected between a rear side connecting point (62) of the axle box (6) and the framework (7), a first end (31) of the positioning pull rod (3) is connected with the axle box (6) through a ball hinge assembly (4), and a rubber node (5) is arranged between a second end (32) of the positioning pull rod (3) and the framework (7);

one of the front side connection point (61) and the rear side connection point (62) has a height higher than the height of the axis (63) of the axle box (6), and the other has a height lower than the height of the axis (63) of the axle box (6).

2. The suspension positioning device according to claim 1, wherein the spherical hinge assembly (4) comprises a spherical connector (41) and a connecting portion (42), the spherical connector (41) is fixed to the first end (31), the connecting portion (42) can be fixed to the rear connecting point (62), the connecting portion (42) is provided with a connecting cavity matched with the spherical connector (41), and the spherical connector (41) is located in the connecting cavity and can rotate around the center of sphere relative to the connecting cavity.

3. The suspension positioning device according to claim 2, wherein the first end (31) is provided with a stud and the ball joint (41) is provided with a threaded hole adapted to the stud.

4. The suspension positioning device according to claim 3, characterized in that the end of the first end (31) is further provided with a relief structure (311) along its circumference.

5. The suspension positioning device according to claim 4, characterized in that the cross section of the abdicating structure (311) tapers from the second end (32) to the first end (31) in the axial direction of the positioning tie-rod (3).

6. The hanging positioning device according to any one of claims 2-5, wherein the connecting portion (42) comprises a connecting body (421) and a cover (422), the connecting body (421) and the cover (422) are detachably connected, the connecting body (421) is provided with a groove, the inner wall of the groove is provided with a first spherical structure, the cover (422) is provided with a second spherical structure, the cover (422) can seal the opening end of the groove, the second spherical structure and the first spherical structure are enclosed to form the connecting cavity, and the first end (31) penetrates through the cover (422) and is connected with the spherical connector (41).

7. The hanging fixture of claim 6, characterized in that said cover (422) is threadably secured to an inner wall of said recess.

8. The hanging positioning device according to any one of claims 2-5, characterized in that the second end (32) is provided with a mounting hole, the rubber node (5) comprises a mandrel (51), a sleeve (53) and a rubber sleeve (52), the mandrel (51) passes through the sleeve (53), the rubber sleeve (52) is clamped between the outer wall of the mandrel (51) and the inner wall of the sleeve (53), the two ends of the mandrel (51) are positioned outside the sleeve (53) and are respectively provided with a fixing hole (511), the fixing holes (511) are used for being fixed with the framework (7) through bolts, and the sleeve (53) can be pressed in the mounting hole.

9. A bogie, characterized by comprising a frame (7), an axle box (6) and a suspension location device according to any of claims 1-8.