CN111775994B

CN111775994B - Urban rail transit vehicle bogie

Info

Publication number: CN111775994B
Application number: CN202010517532.8A
Authority: CN
Inventors: 赖振友
Original assignee: Xiangyang Senyuan Construction Machinery Technology Development Co ltd
Current assignee: Xiangyang Senyuan Construction Machinery Technology Development Co.,Ltd.
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-10-15
Anticipated expiration: 2040-06-09
Also published as: CN111775994A

Abstract

The invention relates to the technical field of rail transit, and discloses an urban rail transit vehicle bogie which is positioned on the same central line through the axis of a rotating frame, the axis of a rotating groove and the axis of a rotating hole. The rotating device can rotate by taking the axis of the rotating hole as a central line, and the guide rotating wheels are fixedly installed at the positions of two sides of the rotating frame. When the wheel shaft rotates, the brake disc deflects and contacts with the guide rotating wheel to push the guide rotating wheel to rotate the rotating device, so that the trapezoidal groove can always face to the surface of the brake disc, the contact surface of the brake device and the brake disc inside the brake device can always keep parallel to the surface of the brake disc when the brake disc deflects, the braking effect of a train after the train enters a bend cannot be reduced, and the problem that the braking performance is reduced because the brake disc and a brake block are not parallel to each other due to the deflection of the wheel shaft after the train enters the bend is solved.

Description

Urban rail transit vehicle bogie

Technical Field

The invention relates to the technical field of rail transit, in particular to an urban rail transit vehicle bogie.

Background

Along with the development of society, the demand of human beings on the rail traffic speed is continuously improved, a train is subjected to six times of great speed increases, the most profound influence on the extreme speed of the train is the structure of a bogie, the improvement that the bogie cannot be separated every time the train is accelerated, the most advanced bogie at present is a three-shaft radial bogie which mainly comprises a primary suspension system, a secondary suspension system, wheel shafts, a guide device and a brake device, when the bogie passes through a curve, each wheel shaft can independently have a curve radius to adjust a certain angle, so that the bogie can better fit the curve track, a middle shaft can shift for a certain stroke, the posture of the curve track is still kept, the extreme speed of the train passing through the curve is improved, the supporting capability of the bogie is improved, and a foundation is laid for improving the extreme speed of the train.

However, in the existing three-axle radial bogie, the brake device is fixed on the secondary suspension device, the secondary suspension device cannot perform posture adjustment after the secondary suspension device enters a curve along with the bogie, the guide device can enable the axle to rotate at a certain angle, the brake disc is also arranged on the axle, so that the brake block on the brake device and the brake disc form a certain angle, when the pneumatic brake is started, high-pressure gas exits from the high-pressure gas cylinder through the air pipe and is attached to the brake disc, at the moment, the brake block cannot be completely attached to the brake disc due to the existence of an included angle, the braking performance of a train on the curve is greatly reduced, and great potential safety hazards exist.

Disclosure of Invention

Aiming at the defects of the prior device in the prior art in the using process, the invention provides the bogie for the urban rail transit vehicle, which has the advantages that the brake block cannot be attached incompletely along with the rotation of a wheel axle to influence the braking performance, and the problem of the reduction of the braking performance of a train after the train enters a curve is solved.

The invention provides the following technical scheme: the utility model provides an urban rail transit vehicle bogie, includes a series of lift kits, a series of lift kits's fixed surface installs the fixing base, the mounting groove of having seted up of fixing base, the equal fixed mounting in both sides of mounting groove has retaining device, retaining device's one end activity has cup jointed rotary device, rotary device's internal connection has brake equipment, be provided with the brake disc between the brake equipment, rotary device one side is located fixed mounting at the position at center has the tuber pipe, the tuber pipe runs through retaining device and fixing base, the one end fixed mounting of tuber pipe has three air ducts.

Preferably, the holding device comprises a holding main body, the holding main body is fixedly provided with holders at positions at two ends, two sides of one end of each holder are fixedly provided with a triangular reinforcing block and one side of the triangular reinforcing block is fixedly provided with the holding main body, a rotating hole is formed in the center position of one end of each holder, a rotating device is movably sleeved in the rotating hole, one side of the holding main body is positioned between the holders and is provided with a rotating groove, a rectangular groove is formed in the middle position of the rotating groove, and a reset air guide hose is fixedly arranged at the bottom of the rectangular groove.

Preferably, rotary device includes the swivel mount, fixed mounting has the direction runner on the position that the swivel mount both ends are located both sides, fixed mounting has the pivot on the position that the swivel mount both ends are located the center, the pivot cup joints with the rotation hole activity, the dovetail groove has been seted up to one side of swivel mount, the inside in dovetail groove is equipped with brake equipment, the spout has been seted up to the both sides in dovetail groove, the dovetail groove bottom has seted up the reset hole on being located the position of both sides, the one end fixed mounting that sets up through-hole and this through-hole bottom the dovetail groove has the other end air guide hose that resets of guide ring through-hole to link to each other on being located the position between the reset hole.

Preferably, the outer surface of the top of the guide ring is chamfered with a radius R1 of one millimeter.

Preferably, brake equipment includes the brake block, the cross-section of brake block cooperatees for trapezoidal and with the dovetail groove, the both sides fixed mounting of brake block has the guide rail, the guide rail cooperatees with the spout, fixed mounting has the stay cord that resets on the position that one side of brake block is located both sides, the one end of stay cord that resets links to each other with the bottom in hole that resets, the drawing die hole that resets has been seted up on the position that one side of brake block is located between the stay cord that resets.

Preferably, the outer surface of the reset drawing die hole is provided with a drawing die with an inclination angle R2 of forty-five degrees.

Preferably, the cross-sectional radius R4 of the rotating frame is thirty centimeters, the cross-sectional radius R of the rotating groove is thirty millimeters, and the axis of the rotating frame, the axis of the rotating groove and the axis of the rotating hole are located on the same central line.

Preferably, the air guide hose is made of a malleable rubber.

The invention has the following beneficial effects:

1. according to the invention, the section radius R4 of the rotating frame is thirty centimeters, the section radius R3 of the rotating groove is thirty millimeters, the axis of the rotating frame, the axis of the rotating groove and the axis of the rotating hole are positioned on the same central line, so that the rotating device can rotate by taking the axis of the rotating hole as the central line, and meanwhile, the guide rotating wheels are fixedly arranged at the positions of two sides of the rotating frame, when the wheel shaft rotates, the brake disc deflects and contacts with the guide rotating wheels and pushes the guide rotating wheels to rotate the rotating device, so that the trapezoidal groove can always face the surface of the brake disc, the contact surface of the brake device and the brake disc in the inner part can always keep parallel to the surface of the brake disc when the brake disc deflects, the braking effect of the train after the train enters a curve cannot be reduced, and the situation that the brake disc and the brake block are not parallel to each other due to the deflection of the wheel shaft after the train enters the curve is avoided Resulting in a problem of a reduction in braking performance.

2. The section of the brake block is trapezoidal and is matched with the trapezoidal groove, so that when a train brakes, high-pressure gas enters the air pipes on two sides through the three-port air guide pipe, then acts on a reset die drawing hole in the brake device through the reset air guide hose and the guide ring, the brake device is launched out and contacts with the brake disc, the brake device moves along with the rotation of the brake disc under the action of friction force of the brake disc and stops under the limit of the trapezoidal groove and the brake disc, at the moment, the trapezoidal groove applies pressure to the brake device to cause the friction force between the brake device and the brake disc to rise, and the pressure of the trapezoidal groove to the brake device is also increased under the action of the friction force, so that the brake devices on two sides generate huge clamping action on the brake disc to enable the brake disc to be quickly braked, and the brake mode does not need subsequent high-pressure gas to provide pressure, thereby reducing the whole volume of the train by reducing the whole volume of the high-pressure gas generating device and the volume and the mass of the collecting device for storing the high-pressure gas without storing excessive high-pressure gas, further improving the speed of the train, meanwhile, the brake performance is improved, in addition, the guide rail is matched with the sliding groove to ensure that the guide rail has a stable track when moving, and one end of the reset pull rope is connected with the bottom of the reset hole, so that the reset pull rope can drag the brake device to reset after the brake is stopped, and the surface in the drawing die hole that resets is equipped with inclination R2 and is the drawing die of forty-five degrees, and the surface at guide ring top is equipped with radius R1 and makes brake equipment reset under the effect of the chamfer of a millimeter on the stay cord accuracy slides in the guide ring that resets for reset can be more accurate, improved the stability of the device during operation.

3. The invention makes the stress generated by pulling the reset air guide hose when the rotating frame is selected low-efficiency through the self-stretching deformation by using the extensible rubber as the material of the reset air guide hose, avoids the problems that the interface of the reset air guide hose and the rotating frame and the interface of the reset air guide hose and the main body are loosened to generate cracks, so that high-pressure gas leaks and the air pressure is too low to cause the abnormal work of the brake device, and the subsequent air pressure is not needed to provide pressure through the braking mode, the working time of the reset air guide hose under high-pressure air is reduced, the service life of the reset air guide hose is prolonged, meanwhile, the reset function of the reset air guide hose can enable the brake disc to reset the rotating frame after the train drives away from the bend to reset, so that the rotating shaft is prevented from being abraded due to long-time contact with the brake disc, and the service life of the structure is further prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic sectional front view of the structure of the present invention;

FIG. 4 is a schematic view of a structure retaining device of the present invention;

FIG. 5 is a schematic right-side view of the structure retaining apparatus of the present invention;

FIG. 6 is a schematic top cross-sectional view of a structure retaining device of the present invention;

FIG. 7 is a schematic view of a rotary device of the present invention;

FIG. 8 is a front view of a rotary device according to the present invention;

FIG. 9 is a schematic top cross-sectional view of a rotating device of the present invention;

FIG. 10 is an enlarged view of the point A in FIG. 9;

FIG. 11 is a schematic view of a structural braking device of the present invention;

FIG. 12 is a schematic side sectional view of a structural brake device of the present invention;

FIG. 13 is an enlarged view of the point B in FIG. 12.

In the figure: 1. a series of suspension brackets; 2. a fixed seat; 3. mounting grooves; 4. a holding device; 41. a holding body; 42. a holder; 43. a triangular reinforcing block; 44. rotating the hole; 45. a rotating groove; 46. resetting the air guide hose; 5. a rotating device; 51. a rotating frame; 52. a guide runner; 53. a rotating shaft; 54. a trapezoidal groove; 55. a chute; 56. a reset hole; 57. a guide ring; 6. a brake device; 61. a brake block; 62. a guide rail; 63. a reset pull rope; 64. resetting the die drawing hole; 7. a brake disc; 8. an air duct; 9. three air ducts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-13, an urban rail transit vehicle bogie comprises a primary suspension bracket 1, a fixed seat 2 is fixedly installed on the outer surface of the primary suspension bracket 1, a mounting groove 3 is formed on the fixed seat 2, retaining devices 4 are fixedly installed on both sides of the mounting groove 3, each retaining device 4 comprises a retaining main body 41, a retainer 42 is fixedly installed on the position of one side of each retaining main body 41 at both ends, a triangular reinforcing block 43 is fixedly installed on both sides of one end of each retainer 42, one side of each triangular reinforcing block 43 is fixedly installed with the retaining main body 41, a rotating hole 44 is formed in the center position of one end of each retainer 42, a rotating device 5 is movably sleeved in the rotating hole 44, a rotating groove 45 is formed in the position of one side of each retaining main body 41 between the retainers 42, a rectangular groove is formed in the middle position of each rotating groove 45, and a resetting air guide hose 46 is fixedly installed at the bottom of the rectangular groove, the material of air guide hose 46 resets is for having malleable rubber, rotary device 5 has been cup jointed to the one end activity of retaining device 4, rotary device 5 includes swivel mount 51, swivel mount 51's cross-section radius R4 is thirty centimetres, the cross-section radius R3 of rotation groove 45 is thirty millimetres, swivel mount 51's axis, the axis of rotation groove 45 and the axis of rotation hole 44 are located same central line, fixed mounting has direction runner 52 on the position that swivel mount 51 both ends are located both sides, fixed mounting has pivot 53 on the position that swivel mount 51 both ends are located the center, pivot 53 and rotation hole 44 activity are cup jointed, dovetail groove 54 has been seted up to one side of swivel mount 51, the inside of dovetail groove 54 is equipped with brake equipment 6, runner 55 has been seted up to dovetail groove 54's both sides, reset hole 56 has been seted up on the position that dovetail groove 54 bottom is located both sides, through-hole has been seted up on the position that the bottom of dovetail groove 54 is located between reset hole 56 and the through-hole has the other end fixed mounting of guide ring 57 through-hole to one end of this through-hole The reset air guide hose 46 is connected, a chamfer with the radius R1 of one millimeter is arranged on the outer surface of the top of the guide ring 57, the inner part of the rotating device 5 is connected with the brake device 6, the brake device 6 comprises a brake block 61, the section of the brake block 61 is trapezoidal and matched with the trapezoidal groove 54, guide rails 62 are fixedly arranged on two sides of the brake block 61, the guide rails 62 are matched with the sliding grooves 55, reset pull ropes 63 are fixedly arranged on positions on two sides of one side of the brake block 61, one end of each reset pull rope 63 is connected with the bottom of each reset hole 56, reset die-drawing holes 64 are arranged on positions between the reset pull ropes 63 on one side of the brake block 61, a die-drawing with the inclination angle R2 of forty-five degrees is arranged on the outer surface of the reset die-drawing holes 64, a brake disc 7 is arranged between the brake devices 6, an air duct 8 is fixedly arranged on a position on the center of one side of the rotating device 5, the air duct 8 penetrates through the retaining device 4 and the fixed seat 2, one end of the air pipe 8 is fixedly provided with a three-port air duct 9.

Wherein, the section radius R4 of the rotating frame 51 is thirty centimeters, the section radius R3 of the rotating groove 45 is thirty millimeters, the axis of the rotating frame 51, the axis of the rotating groove 45 and the axis of the rotating hole 44 are positioned on the same central line, so that the rotating device 5 can rotate by taking the axis of the rotating hole 44 as the central line, meanwhile, the guide rotating wheels 52 are fixedly arranged at the positions of two sides of the rotating frame 51, when the wheel shaft rotates, the brake disc 7 deflects and contacts with the guide rotating wheels 52 and pushes the guide rotating wheels 52 to rotate the rotating device 5, so that the trapezoidal groove 54 can always face the surface of the brake disc 7, the contact surface of the brake device 6 and the brake disc 7 inside can always keep parallel to the surface of the brake disc 7 when the brake disc 7 deflects, and the braking effect of the train after the train enters a curve can not be reduced, the problem of brake performance reduction caused by the fact that the brake disc and the brake block are not in a parallel posture any more due to deflection of the axle after the train drives into the curve is solved.

Wherein, the section of the brake block 61 is trapezoid and is matched with the trapezoid groove 54, when a train brakes, high-pressure air enters the air pipes 8 at two sides through the three-port air duct 9, then acts on the reset die-drawing hole 64 in the brake device 6 through the reset air duct 46 and the guide ring 57, and enables the brake device 6 to be emitted and to contact with the brake disc 7, meanwhile, the brake device 6 moves along with the rotation of the brake disc 7 under the action of the friction force of the brake disc 7 and stops under the limit of the trapezoid groove 54 and the brake disc 7, at this time, the trapezoid groove 54 applies a pressure to the brake device 6 and causes the friction force of the brake device 6 and the brake disc 7 to rise, and the trapezoid groove 54 also increases the pressure of the brake device 6 under the action of the friction force, thereby the brake devices 6 at two sides generate a great clamping effect on the brake disc 7, make the brake disc 7 stop that can be quick, this kind of braking mode does not need subsequent high-pressure gas to provide pressure, thereby need not store too much high-pressure gas, thereby reduce high-pressure gas generating device's whole volume and store high-pressure gas's collection device's volume and quality and reach the effect that reduces the whole volume of train, the very fast that has realized that can further improved the train, the performance of brake has also been improved simultaneously, in addition, cooperate through guide rail 62 and spout 55 and make guide rail 62 have a stable track when moving, and link to each other with the bottom of hole 56 that resets through the one end of the stay cord 63 that resets, make the brake stop after the stay cord 63 that resets can pull brake equipment 6 and reset, and be equipped with the draft angle R2 for forty-five degrees at the surface that resets die hole 64, the surface at guide ring 57 top is equipped with radius R1 and is the chamfer effect of a millimeter and makes brake equipment 6 reset when resetting, reset stay cord 63 accurately slides into the guide ring to the guide ring 57, the reset can be more accurate, and the working stability of the device is improved.

Wherein, the material of the reset air guide hose 46 is rubber with ductility, so that the stress generated by pulling the reset air guide hose 46 by the rotating frame 51 can be low-efficiency through the self-stretching deformation, thereby avoiding the problems that the interface between the reset air guide hose 46 and the rotating frame 51 and the interface between the reset air guide hose 46 and the holding main body 41 are loosened to generate cracks, so that high-pressure gas leaks and the air pressure is too low to cause the brake device 6 to work abnormally, and the subsequent air pressure is not needed to provide pressure through the braking mode, the working time of the reset air guide hose 46 under high-pressure air is reduced, the service life of the reset air guide hose is prolonged, meanwhile, the resetting function of the resetting air guide hose 46 can ensure that the rotating frame 51 is reset after the brake disc 7 is reset after the train leaves a bend, so that the rotating shaft 53 is prevented from being worn due to long-time contact with the brake disc 7, and the service life of the structure is further prolonged.

Wherein, through the equal fixed mounting in both sides of holder 42 one end have triangle reinforcing block 43 and triangle reinforcing block 43's one side and keep main part 41 fixed mounting for triangle reinforcing block 43 has triangle stable structure and consolidates the intensity of holder 42, and holder 42 can better deal with the impact force that rotary device 5 produced when brake equipment 6 plays the braking action, has improved the device job stabilization nature.

The using method of the invention is as follows:

when the train enters a curve, the wheel shaft on the turning frame rotates by a small angle, when the wheel shaft rotates to a certain angle, the surface of the brake disc 7 contacts with the guide rotating wheels 52 at the two ends of the rotating frame 51, and the rotating frame 51 rotates along the axis of the rotating shaft 53, so that the inner brake device 6 can be in a state of facing the brake disc 7.

When a train brakes, high-pressure gas flows out of the high-pressure gas cylinder, enters the air pipe 8 through the three-port air guide pipe 9, then enters the reset air guide hose 46 and acts on one side of the brake device 6, the brake device 6 is impacted to be ejected and contacts with the brake disc 7, moves in the rotating direction of the brake disc 7 under the friction action of the brake disc 7 and stops at the limit of the trapezoidal groove 54 and the brake disc 7, at the moment, the trapezoidal groove 54 applies pressure to the brake device 6 and causes the friction force between the brake device 6 and the brake disc 7 to rise, and simultaneously, the pressure of the trapezoidal groove 54 on the brake device 6 is increased under the action of the friction force, so that the brake devices 6 on the two sides generate huge clamping action on the brake disc 7 until the brake disc 7 stops rotating, the brake disc 7 can be quickly stopped, and after the brake disc 7 is completely stopped, the brake device 6 loses the friction force with the brake disc 7 and is reset under the pulling of the reset pull rope 63, and the brake device 6 can be reset accurately with the assistance of the drawing die with the inclination angle R2 of forty-five degrees arranged on the outer surface of the reset drawing die hole 64.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides an urban rail transit vehicle bogie, includes a series of suspension bracket (1), its characterized in that: the outer surface of the primary suspension bracket (1) is fixedly provided with a fixing seat (2), the fixing seat (2) is provided with a mounting groove (3), the two sides of the mounting groove (3) are fixedly provided with a retaining device (4), one end of the retaining device (4) is movably sleeved with a rotating device (5), the rotating device (5) comprises a rotating frame (51), two ends of the rotating frame (51) are positioned on the positions of the two sides and fixedly provided with guide rotating wheels (52), two ends of the rotating frame (51) are positioned on the center and fixedly provided with rotating shafts (53), the rotating shafts (53) are movably sleeved with rotating holes (44), one side of the rotating frame (51) is provided with a trapezoidal groove (54), the inside of the trapezoidal groove (54) is provided with a brake device (6), the two sides of the trapezoidal groove (54) are provided with sliding grooves (55), the bottom of the trapezoidal groove (54) is positioned on the positions of the two sides and provided with a reset hole (56), the utility model discloses a reset device, including trapezoidal groove (54), reset hole (56), guiding ring (57) and air guide hose (46), the both ends that set up through-hole and this through-hole respectively fixed mounting have guide ring (57) and air guide hose (46) bottom be located the position between reset hole (56), the surface at guide ring (57) top is equipped with the chamfer that radius R1 is a millimeter, the internal connection of rotary device (5) has brake equipment (6), be provided with brake disc (7) between brake equipment (6), fixed mounting has tuber pipe (8) on the position that rotary device (5) one side is located the center, retaining device (4) and fixing base (2) are run through in tuber pipe (8), the one end fixed mounting of tuber pipe (8) has three air ducts (9).

2. The urban rail transit vehicle bogie according to claim 1, characterized in that: the holding device (4) comprises a holding main body (41), wherein a holding frame (42) is fixedly mounted on positions, located at two ends, of one side of the holding main body (41), triangular reinforcing blocks (43) are fixedly mounted on two sides of one end of the holding frame (42), one side of each triangular reinforcing block (43) is fixedly mounted with the holding main body (41), a rotating hole (44) is formed in the center of one end of the holding frame (42), a rotating device (5) is sleeved on the inside of the rotating hole (44), a rotating groove (45) is formed in the position, located between the holding frames (42), of one side of the holding main body (41), a rectangular groove is formed in the middle of the rotating groove (45), and a reset air guide hose (46) is fixedly mounted at the bottom of the rectangular groove.

3. The urban rail transit vehicle bogie according to claim 1, characterized in that: brake equipment (6) are including brake block (61), the cross-section of brake block (61) cooperatees for trapezoidal and with trapezoidal groove (54), the both sides fixed mounting of brake block (61) has guide rail (62), guide rail (62) cooperate with spout (55), fixed mounting has the stay cord (63) that resets on the position that one side of brake block (61) is located both sides, the one end of stay cord (63) that resets links to each other with the bottom of hole (56) that resets, the one side of brake block (61) has been located and has been seted up on the position between stay cord (63) that resets and has been reset and has been pulled out nib (64).

4. The urban rail transit vehicle bogie according to claim 3, characterized in that: the outer surface of the reset die drawing hole (64) is provided with a die drawing with an inclination angle R2 of forty-five degrees.

5. The urban rail transit vehicle bogie according to claim 2, characterized in that: the section radius R4 of the rotating frame (51) is thirty centimeters, the section radius R3 of the rotating groove (45) is thirty millimeters, and the axis of the rotating frame (51), the axis of the rotating groove (45) and the axis of the rotating hole (44) are located on the same central line.

6. The urban rail transit vehicle bogie according to claim 2, characterized in that: the reset air guide hose (46) is made of rubber with ductility.