CN112441047A - Bogie for railway vehicle, railway vehicle and railway traffic system - Google Patents
Bogie for railway vehicle, railway vehicle and railway traffic system Download PDFInfo
- Publication number
- CN112441047A CN112441047A CN201910806072.8A CN201910806072A CN112441047A CN 112441047 A CN112441047 A CN 112441047A CN 201910806072 A CN201910806072 A CN 201910806072A CN 112441047 A CN112441047 A CN 112441047A
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- China
- Prior art keywords
- straight
- push rod
- axle assembly
- vehicle body
- bogie
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
- B61F5/245—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode
Abstract
The invention discloses a bogie for a rail vehicle, the rail vehicle and a rail transit system, wherein the bogie comprises: an axle assembly; one end of the straight first push rod is rotationally connected with the axle assembly, and the other end of the straight first push rod is rotationally connected with the vehicle body; one end of each straight second push rod is rotatably connected with the axle assembly, and the other end of each straight second push rod is rotatably connected with the vehicle body; elastic parts are arranged at the rotating connection position of the straight first push rod and the axle assembly, the rotating connection position of the straight first push rod and the vehicle body, the rotating connection position of the straight second push rod and the axle assembly and the rotating connection position of the straight second push rod and the vehicle body. The traction mechanism of the bogie adopts three straight push rods, so that the transverse displacement of the vehicle body of the vehicle relative to the bogie can be released, and the transverse stability of the vehicle is better.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a bogie for a rail vehicle, the rail vehicle and a rail transit system.
Background
In the related art, a traction mechanism of a bogie of a railway vehicle adopts a V-shaped push rod structure, so that the transverse displacement of a vehicle body of the vehicle relative to the bogie cannot be released, and the transverse stability of the vehicle is poor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a bogie for a railway vehicle, wherein the traction mechanism of the bogie for a railway vehicle adopts three straight push rods, the lateral displacement of the vehicle body relative to the bogie can be released, and the lateral stability of the vehicle is good.
The invention also proposes a rail vehicle comprising a bogie according to the invention as described above.
The invention also provides a rail transit system comprising the rail vehicle according to the invention.
According to an embodiment of the first aspect of the invention, a bogie for a railway vehicle comprises: an axle assembly; the straight first push rod extends linearly along the longitudinal direction, one end of the straight first push rod is rotatably connected with the axle assembly, and the other end of the straight first push rod is rotatably connected with the vehicle body; the two straight second push rods extend along a longitudinal straight line and are spaced apart in the transverse direction, one end of each straight second push rod is rotatably connected with the axle assembly, the other end of each straight second push rod is rotatably connected with the vehicle body, the straight first push rod is positioned above the two straight second push rods in the vertical direction, and the straight first push rod is positioned between the two straight second push rods in the transverse direction; elastic parts are arranged at the rotating connection position of the straight first push rod and the axle assembly, the rotating connection position of the straight first push rod and the vehicle body, the rotating connection position of the straight second push rod and the axle assembly and the rotating connection position of the straight second push rod and the vehicle body.
According to the bogie for the railway vehicle, the traction mechanism of the bogie adopts the straight first push rod and the two straight second push rods, and elastic parts are arranged at the rotating connection position of the straight first push rod and the axle assembly, the rotating connection position of the straight first push rod and the vehicle body, the rotating connection position of the straight second push rod and the axle assembly and the rotating connection position of the straight second push rod and the vehicle body, so that the transverse displacement of the vehicle body of the vehicle relative to the bogie can be released by means of elastic deformation of the elastic parts, and the transverse stability of the vehicle can be improved.
In addition, the bogie for the railway vehicle according to the embodiment of the invention can also have the following additional technical characteristics:
according to one embodiment of the invention, the bogie comprises two first mounting seats and two second mounting seats, the two first mounting seats are respectively and rotatably connected to two ends of the straight first push rod, one of the first mounting seats is connected with the axle assembly, and the other first mounting seat is connected with the vehicle body; the two second mounting seats are respectively and rotatably connected to two ends of the straight second push rod, one of the second mounting seats is connected with the axle assembly, and the other second mounting seat is connected with the vehicle body.
According to one embodiment of the invention, the bogie comprises two first rotating shafts and two second rotating shafts, the two first rotating shafts are respectively and rotatably connected to two ends of the straight first push rod, one first rotating shaft is used for being connected with the axle assembly, the other first rotating shaft is used for being connected with the vehicle body, and the outer wall of the first rotating shaft is wrapped with the elastic piece; the two second rotating shafts are respectively and rotatably connected to two ends of the straight second push rod, one of the second rotating shafts is used for being connected with the axle assembly, the other second rotating shaft is used for being connected with the vehicle body, and the elastic part wraps the outer wall of the second rotating shaft.
Optionally, the elastic member is formed as a rubber layer.
According to an embodiment of the present invention, each of the straight second push rods is retractable along a length direction thereof, and the straight second push rods each include: one of the two straight push rod heads is rotationally connected with the axle assembly, and the other straight push rod head is rotationally connected with the vehicle body; the two straight push rod heads are respectively connected in two ends of the straight push rod barrel in a telescopic manner; the locking bush sleeves the straight push rod barrel and is respectively arranged at two ends of the straight push rod barrel to be used for locking the straight push rod barrel and the straight push rod head.
According to one embodiment of the present invention, the vehicle further includes at least one air spring set disposed between the axle assembly and the vehicle body.
Optionally, the air spring assembly includes: the spring upper mounting seat is connected with the vehicle body; the lower spring mounting seat is connected with the axle assembly; the air spring is connected between the upper spring mounting seat and the lower spring mounting seat; a height valve coupled to the body, the height valve having a first state, a second state, and a third state, the height valve coupled to the air spring, the air spring height being constant when the height valve is in the first state, the air spring sucking air to raise the air spring height when the height valve is in the second state, and the air spring exhausting air to lower the air spring height when the height valve is in the third state; one end of the swing rod is rotatably connected with the altitude valve, the other end of the swing rod is connected with the axle assembly, the relative height between the vehicle body and the axle assembly changes to drive the swing rod to swing, and the swing of the swing rod can control the altitude valve to be switched among the first state, the second state and the third state.
Optionally, the altitude valve has a first port in communication with the air spring, a second port in communication with an air source for air intake, and a third port in communication with ambient atmosphere for exhaust, the first port being disconnected from the second port and the first port being disconnected from the third port when the altitude valve is in the first state; when the altitude valve is in the second state, the first port is communicated with the second port, and the first port is disconnected with the third port; when the altitude valve is in the third state, the first valve port is disconnected from the second valve port, and the first valve port is communicated with the third valve port.
Optionally, the swing link includes: a first rod extending horizontally, one end of the first rod being rotatably connected to the altitude valve; the upper end of the second rod is rotatably connected with the other end of the first rod; and the upper end of the third rod is connected with the lower end of the second rod through a flexible piece, and the lower end of the third rod is connected with the axle assembly.
Optionally, the air spring assembly further comprises a cross stop disposed between the sprung mount and the axle assembly to limit lateral displacement of the vehicle body relative to the axle assembly.
According to one embodiment of the present invention, a stabilizer bar assembly is further included and disposed between the axle assembly and the vehicle body for dampening a roll tendency of the vehicle body.
Optionally, the stabilizer bar set comprises: the stabilizer bar body extends along the transverse direction and is connected with the axle assembly; the two stabilizer bar mounting seats are respectively arranged at two ends of the stabilizer bar body, each stabilizer bar mounting seat extends vertically, and the upper ends of the stabilizer bar mounting seats are connected with the vehicle body; two connecting rods, the both ends of connecting rod rotate respectively to be connected the stabilizer bar body of rod with on the stabilizer bar mount pad, two the connecting rod all along vertical extension and with two the stabilizer bar mount pad one-to-one sets up.
Optionally, the vehicle further comprises a vibration damping device, the vibration damping device is arranged between the axle assembly and the vehicle body, and the vibration damping device comprises: the lower end of the vertical shock absorber is rotationally connected with the axle assembly, and the upper end of the vertical shock absorber is rotationally connected with the vehicle body; and one end of the transverse shock absorber is rotationally connected with the axle assembly, and the other end of the transverse shock absorber is rotationally connected with the lower end of the stabilizer bar mounting seat.
According to an embodiment of the present invention, further comprising: the steering knuckle is arranged on the axle assembly and is used for mounting a walking wheel set; the guide frame is connected with the axle assembly through a slewing bearing and is provided with a guide wheel set; and the steering pull rod is rotatably connected between the guide frame and the steering knuckle.
According to a second aspect of the present invention, a rail vehicle includes: a vehicle body and a bogie mounted on the vehicle body and being a bogie for a railway vehicle according to an embodiment of the above first aspect of the invention.
According to the railway vehicle provided by the embodiment of the invention, the bogie for the railway vehicle provided by the embodiment of the first aspect of the invention has all the advantages of the bogie, and the detailed description is omitted.
A rail transit system according to an embodiment of the third aspect of the invention includes: an internally guided rail and a railway vehicle running along the internally guided rail and being a railway vehicle according to the embodiment of the above second aspect of the invention, the bogie being fitted between the vehicle body and the internally guided rail.
According to the rail transit system provided by the embodiment of the invention, the rail vehicle provided by the embodiment of the second aspect of the invention has all the advantages of the rail vehicle, and the description is omitted here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a perspective view of a truck for a rail vehicle according to an embodiment of the present invention;
FIG. 2 is a top plan view of the truck for a railway vehicle shown in FIG. 1;
FIG. 3 is a perspective view of an axle assembly of the truck for a railway vehicle shown in FIG. 1;
FIG. 4 is a front view of an axle assembly of the truck for a railway vehicle shown in FIG. 1;
FIG. 5 is a perspective view of a straight first push rod and a straight second push rod of the truck for a railway vehicle shown in FIG. 1;
FIG. 6 is a perspective view of the air spring set of the truck for a railway vehicle shown in FIG. 1;
FIG. 7 is a perspective view of the stabilizer bar set of the truck for a railway vehicle shown in FIG. 1;
fig. 8 is a perspective view of the shock absorbing device for a bogie of a railway vehicle shown in fig. 1.
Reference numerals:
a bogie 100;
an axle assembly 1;
a running wheel set 2; running wheels 21;
a guide wheel group 3; a guide wheel 31;
a straight first push rod 4; a first mount 41; a first rotating shaft 42; a straight putter head 43; a straight push rod cylinder 44;
a straight second push rod 5; a second mount 51; a second rotating shaft 52; a straight putter head 53; a straight push rod barrel 54; a locking bush 55;
an air spring group 6; an upper spring mounting seat 61; a unsprung mounting block 62; an air spring 63; the altitude valve 64; a swing link 65; a first lever 651; a second rod 652; a third rod 653; a flexible member 654; a cross stop 66; a connecting member 67;
a stabilizer bar group 7; a stabilizer bar body 71; a stabilizer bar support base 711; a stabilizer bar mount 72; a connecting rod 73;
a vibration damping device 8; a vertical shock absorber 81; a transverse damper 82; a first vibration damping mount 83; a second vibration damping mount 84; a third vibration damping mount 85; a fourth vibration damping mount 86;
a knuckle 91; a guide frame 92; a steering tie rod 93; a slew bearing 94; a hub 95; an electric drive assembly 96.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A bogie 100 for a railway vehicle according to an embodiment of the first aspect of the invention is described below with reference to fig. 1-8. The railway vehicle is suitable for running along an inner guide type track, the railway vehicle comprises a vehicle body (not shown) and a bogie 100, the inner guide type track comprises two track beams which are spaced along the transverse direction, a guide channel is defined between the two track beams, the bogie 100 comprises an axle assembly 1, a walking wheel set 2, a guide wheel set 3, a straight first push rod 4 and two straight second push rods 5, the walking wheel set 2 is arranged on the axle assembly 1, the walking wheel set 2 comprises two walking wheels 21 which are spaced along the transverse direction, the two walking wheels 21 are supported on the top walls of the two track beams in a one-to-one correspondence manner, the guide wheel set 3 is arranged on the axle assembly 1, the guide wheel set 3 is positioned in the guide channel and is matched with the inner side wall of the track beams for guiding, wherein the inner side wall of the track beam is adjacent to the center of the guide channel, the guide wheel set 3 comprises at least one guide wheel 31, as shown in fig. 1, the guide wheels 31 include four.
The straight first push rod 4 extends linearly along the longitudinal direction, one end (the rear end shown in fig. 1 and 5) of the straight first push rod 4 is rotatably connected with the axle assembly 1, the other end (the front end shown in fig. 1 and 5) of the straight first push rod 4 is rotatably connected with the vehicle body, the two straight second push rods 5 extend linearly along the longitudinal direction and are spaced apart in the transverse direction, one end (the rear end shown in fig. 1 and 5) of each straight second push rod 5 is rotatably connected with the axle assembly 1, the other end (the front end shown in fig. 1 and 5) of each straight second push rod 5 is rotatably connected with the vehicle body, the straight first push rod 4 is located above the two straight second push rods 5 in the vertical direction, and the straight first push rod 4 is located between the two straight second push rods 5 in the transverse direction. The straight first push rod 4 and the two straight second push rods 5 form a traction mechanism, and traction force and braking force are transmitted in the running process of the vehicle.
It should be noted here that "lateral" in the present application refers to a width direction of the vehicle body (left-right direction as shown in fig. 2), "longitudinal" refers to a length direction of the vehicle body (front-back direction as shown in fig. 1), and "vertical" refers to a height direction of the vehicle body (up-down direction as shown in fig. 1).
Elastic parts are arranged at the rotating connection part of the straight first push rod 4 and the axle assembly 1, the rotating connection part of the straight first push rod 4 and the vehicle body, the rotating connection part of the straight second push rod 5 and the axle assembly 1 and the rotating connection part of the straight second push rod 5 and the vehicle body.
Specifically, an elastic part is arranged at the rotary connection position of the straight first push rod 4 and the axle assembly 1, and the relative rotation between the straight first push rod 4 and the axle assembly 1 is realized through the torsional deformation of the elastic part; an elastic part is arranged at the rotary connection part of the straight first push rod 4 and the vehicle body, and the relative rotation between the straight first push rod 4 and the vehicle body is realized through the torsional deformation of the elastic part; an elastic part is arranged at the rotary connection position of the straight second push rod 5 and the axle assembly 1, and the relative rotation between the straight second push rod 5 and the axle assembly 1 is realized through the torsional deformation of the elastic part; an elastic part is arranged at the rotary connection part of the straight second push rod 5 and the vehicle body, and the relative rotation between the straight second push rod 5 and the vehicle body is realized through the torsional deformation of the elastic part.
According to the bogie 100 for the railway vehicle, the traction mechanism of the bogie 100 adopts the straight first push rod 4 and the two straight second push rods 5, and elastic members are arranged at the rotating connection position of the straight first push rod 4 and the axle assembly 1, the rotating connection position of the straight first push rod 4 and the vehicle body, the rotating connection position of the straight second push rod 5 and the axle assembly 1 and the rotating connection position of the straight second push rod 5 and the vehicle body, so that the transverse displacement of the vehicle body of the vehicle relative to the bogie 100 can be released by means of the elastic deformation of the elastic members, and the transverse stability of the vehicle can be improved.
In one embodiment of the present invention, as shown in fig. 1 to 5, the bogie 100 includes two first mounting seats 41 and two second mounting seats 51, the two first mounting seats 41 are respectively and rotatably connected to two ends of the straight first push rod 4, one of the first mounting seats 41 is connected to the axle assembly 1 (for example, connected by a fastening member such as a bolt, or integrally formed), and the other first mounting seat 41 is connected to the vehicle body (for example, connected by a fastening member such as a bolt, or integrally formed); the two second mounting seats 51 are respectively and rotatably connected to two ends of the straight second push rod 5, one of the second mounting seats 51 is connected to the axle assembly 1 (for example, may be connected by a fastener such as a bolt, or integrally formed), and the other second mounting seat 51 is connected to the vehicle body (for example, may be connected by a fastener such as a bolt, or integrally formed). By providing the first mount 41 and the second mount 51, the connection can be facilitated.
In one embodiment of the present invention, as shown in fig. 5, the bogie 100 includes two first rotating shafts 42 and two second rotating shafts 52, the two first rotating shafts 42 are respectively rotatably connected to two ends of the straight first push rod 4, one first rotating shaft 42 is used for connecting with the axle assembly 1, the other first rotating shaft 42 is used for connecting with the vehicle body, and the outer wall of the first rotating shaft 42 is wrapped with an elastic member; the two second rotating shafts 52 are respectively and rotatably connected to two ends of the straight second push rod 5, one of the second rotating shafts 52 is used for being connected with the axle assembly 1, the other second rotating shaft 52 is used for being connected with the vehicle body, and the outer wall of the second rotating shaft 52 is wrapped by an elastic element.
Specifically, two ends of the straight first push rod 4 are respectively rotatably connected with the first rotating shafts 42, two first rotating shafts 42 can be respectively rotatably arranged at two ends of the straight first push rod 4 in a penetrating manner, one of the first rotating shafts 42 is connected with the axle assembly 1 (for example, connected through fasteners such as bolts), the other first rotating shaft 42 is connected with the vehicle body (for example, connected through fasteners such as bolts), so that the rotation connection of the straight first push rod 4 and the axle assembly 1 is realized, and the rotation connection of the straight first push rod 4 and the vehicle body is realized. The elastic piece arranged at the rotating connection position of the straight first push rod 4 and the axle assembly 1 is wrapped on the outer wall surface of the corresponding first rotating shaft 42, and the elastic piece arranged at the rotating connection position of the straight first push rod 4 and the vehicle body is wrapped on the outer wall surface of the corresponding first rotating shaft 42, so that the assembly is convenient.
The two ends of the straight second push rod 5 are respectively rotatably connected with the second rotating shafts 52, the two second rotating shafts 52 can be respectively rotatably arranged at the two ends of the straight second push rod 5 in a penetrating manner, one of the second rotating shafts 52 is connected with the axle assembly 1 (for example, connected through fasteners such as bolts), the other second rotating shaft 52 is connected with the vehicle body (for example, connected through fasteners such as bolts), so that the straight second push rod 5 is rotatably connected with the axle assembly 1, and the straight second push rod 5 is rotatably connected with the vehicle body. The elastic part arranged at the rotating connection part of the straight second push rod 5 and the axle assembly 1 is wrapped on the outer wall surface of the corresponding second rotating shaft 52, and the elastic part arranged at the rotating connection part of the straight second push rod 5 and the vehicle body is wrapped on the outer wall surface of the corresponding second rotating shaft 52, so that the assembly is convenient.
In the specific example shown in fig. 1-5, the bogie 100 includes the two first mounting seats 41, the two second mounting seats 51, the two first rotating shafts 42, and the two second rotating shafts 52, wherein one first mounting seat 41 is connected to the axle assembly 1, the other first mounting seat 41 is connected to the vehicle body, one second mounting seat 51 is connected to the axle assembly 1, and the other second mounting seat 51 is connected to the vehicle body. The first rotating shafts 42 are connected between the straight first push rods 4 and the first mounting seats 41, the two first rotating shafts 42 are arranged in one-to-one correspondence with the two first mounting seats 41, the first rotating shafts 42 are rotatably connected with the straight first push rods 4, the first rotating shafts 42 are fixedly connected with the first mounting seats 41 (for example, connected through fasteners such as bolts and the like), the straight first push rods 4 are rotatably connected with the first mounting seats 41 through the first rotating shafts 42, and the first rotating shafts 42 are connected with the axle assembly 1 and the vehicle body through the first mounting seats 41; the second rotating shaft 52 is connected between the straight second push rod 5 and the second mounting seat 51, the two second rotating shafts 52 and the two second mounting seats 51 are arranged in a one-to-one correspondence manner, the second rotating shaft 52 is rotatably connected with the straight second push rod 5, the second rotating shaft 52 is fixedly connected with the second mounting seats 51 (for example, connected through fasteners such as bolts), the straight second push rod 5 is rotatably connected with the second mounting seats 51 through the second rotating shaft 52, and the second rotating shaft 52 is connected with the axle assembly 1 and the vehicle body through the second mounting seats 51.
Optionally, the elastic element is formed by a rubber layer, so that the elasticity is good and the cost is low. The rubber layer is wrapped on the outer wall surface of the first rotating shaft 42 or the second rotating shaft 52 through a vulcanization process, then the first rotating shaft 42 provided with the rubber layer is pressed into the straight first push rod 4 through interference fit, and the relative rotation between the first rotating shaft 42 and the straight first push rod 4 is realized through the torsional deformation of the rubber layer; the second rotating shaft 52 provided with a rubber layer is press-fitted into the straight second push rod 5 by interference, and relative rotation between the second rotating shaft 52 and the straight second push rod 5 is achieved by torsional deformation of the rubber layer. Of course, the elastic member in the present application is not limited to the above rubber layer, and may be formed as a silicone rubber layer.
In one embodiment of the present invention, as shown in fig. 5, each of the straight second push rods 5 is retractable along the length direction thereof, the straight second push rod 5 includes a straight push rod cylinder 54, two straight push rod heads 53 and two locking bushings 55, one of the two straight push rod heads 53 is rotatably connected to the axle assembly 1, the other of the two straight push rod heads 53 is rotatably connected to the vehicle body, the two straight push rod heads 53 are respectively retractably connected to both ends of the straight push rod cylinder 54, and the two locking bushings 55 are fitted over the straight push rod cylinder 54 and respectively provided at both ends of the straight push rod cylinder 54 for locking the straight push rod cylinder 54 and the straight push rod heads 53. Specifically, the locking bush 55 is tightened by a bolt after the straight putter head 53 is adjusted in distance from the straight putter cylinder 54, which facilitates adjustment and fixation of the length of the straight second putter 5.
Optionally, an external thread is arranged on the outer wall surface of the straight push rod head 53, an internal thread meshed with the external thread is arranged on the inner wall surface of the straight push rod cylinder 54, the straight push rod head 53 is screwed in the straight push rod cylinder 54, the length of the straight second push rod 5 is adjusted by screwing the straight push rod head 53 and the straight push rod cylinder 54 relatively, and meanwhile, the connection between the straight push rod head 53 and the straight push rod cylinder 54 is more stable and reliable. The straight pusher tube 54 may be a seamless steel tube.
In one embodiment of the present invention, as shown in fig. 5, the straight first pushrod 4 includes two straight pushrod heads 43 and a straight pushrod cylinder 44, the two straight pushrod heads 43 are connected to both ends of the straight pushrod cylinder 44, one of the two straight pushrod heads 43 is rotatably connected to the axle assembly 1, and the other of the two straight pushrod heads 43 is rotatably connected to the vehicle body. The straight push rod barrel 44 may be a seamless steel tube. The straight putter head 43 and the straight putter cylinder 44 may be connected by a heat staking process.
In an embodiment of the present invention, as shown in fig. 1, the bogie 100 further includes at least one air spring set 6, the air spring set 6 is disposed between the axle assembly 1 and the vehicle body, the shock absorbing performance of the bogie 100 can be improved by disposing the air spring 63, and the air spring set 6 has variable stiffness and self damping, and can buffer impact, rapidly shorten vehicle oscillation time, improve motion stability of the vehicle body, and make the subjective feeling of passengers more comfortable.
Further, as shown in fig. 1-4 and 6, the air spring assembly 6 includes an upper spring mounting seat 61, a lower spring mounting seat 62, an air spring 63, an altitude valve 64 and a swing link 65, the upper spring mounting seat 61 is connected to the vehicle body (for example, connected by a fastener such as a bolt), the lower spring mounting seat 62 is connected to the axle assembly 1 (for example, connected by a fastener such as a bolt), the air spring 63 is connected between the upper spring mounting seat 61 and the lower spring mounting seat 62, and the air spring 63 and the upper spring mounting seat 61 and the air spring 63 and the lower spring mounting seat 62 are connected by a fastener such as a bolt. The height valve 64 is connected to the vehicle body, the height valve 64 can be directly connected to the vehicle body, or can be connected to the vehicle body through a connecting piece 67 (as shown in fig. 6), the height valve 64 has a first state, a second state and a third state, the height valve 64 is connected with the air spring 63, when the height valve 64 is in the first state, the air spring 63 is constant in height, the air spring 63 neither inhales nor exhausts air, when the height valve 64 is in the second state, the air spring 63 inhales air to enable the height of the air spring 63 to rise, when the height valve 64 is in the third state, the air spring 63 exhausts air to enable the height of the air spring 63 to fall, one end of the swing rod 65 is rotatably connected with the height valve 64, the other end of the swing rod 65 is connected with the axle assembly 1, the relative height between the vehicle body and the axle assembly 1 changes to drive the swing rod 65, And switching between the second state and the third state.
Further, the altitude valve 64 has a first port, a second port and a third port, the first port is communicated with the air spring 63, the second port is communicated with an air source for air suction, the third port is communicated with the outside atmosphere for air exhaust, when the altitude valve 64 is in a first state, the first port is disconnected from the second port, the first port is disconnected from the third port, at this time, the air spring 63 neither charges air nor exhausts air, and the height of the air spring 63 is constant; when the height valve 64 is in the second state, the first valve port is communicated with the second valve port, the first valve port is disconnected with the third valve port, at the moment, the air spring 63 is inflated, and the height of the air spring 63 rises; when the height valve 64 is in the third state, the first port and the second port are disconnected, the first port and the third port are connected, the air spring 63 is exhausted, and the height of the air spring 63 is reduced.
The height valve 64 comprises a valve casing and a valve core which is arranged in the valve casing and can move in the valve casing, a first valve port, a second valve port and a third valve port are arranged on the valve casing, the swing rod 65 is rotatably connected with the valve core of the height valve 64, the valve core is driven to move in the valve casing through the swing of the swing rod 65, and then the height valve 64 is controlled to be switched among a first state, a second state and a third state.
Further, as shown in fig. 6, the swing link 65 includes a first rod 651 extending horizontally, a second rod 652 extending vertically, and a third rod 653 extending vertically, one end of the first rod 651 is rotatably connected to the height valve 64, the upper end of the second rod 652 is rotatably connected to the other end of the first rod 651, the upper end of the third rod 653 is connected to the lower end of the second rod 652 through a flexible member 654 (e.g., a rubber sleeve or a silicone sleeve, etc.), and the lower end of the third rod 653 is connected to the axle assembly 1. Flexible member 654 is flexibly deformable, and by providing flexible member 654 between second rod 652 and third rod 653, relative rotation or movement between second rod 652 and third rod 653 is permitted by the flexible deformation of flexible member 654, such that rocker 65 does not break as the height of the vehicle body relative to axle assembly 1 changes.
As shown in FIG. 6, the upper end of the flexible member 654 is fitted over the lower end of the second rod 652, and then the connection between the flexible member 654 and the second rod 652 is fastened by a fastener such as a band, and the lower end of the flexible member 654 is rotatably connected to the upper end of the third rod 653.
The whole vehicle height of the vehicle is adjusted through the air spring set 6 to ensure that the vehicle body always works at a constant height, and the action process of the air spring set 6 when the whole vehicle height of the vehicle changes is described in detail below by taking the rotating axis between the first rod 651 and the height valve 64 as a first axis and the rotating axis between the flexible piece 654 and the third rod 653 as a second axis.
Specifically, when the vehicle body load increases to cause the vehicle body to move in the-Z direction (i.e., downward), the height valve 64 also moves in the-Z direction, and at this time, the first rod 651 rotates counterclockwise around the first axis from the horizontal state shown in fig. 6, and by the first rod 651 rotating counterclockwise around the first axis from the horizontal state shown in fig. 6, the first rod 651 drives the valve core of the height valve 64 to move in the valve housing, so that the first valve port is communicated with the second valve port, the first valve port is disconnected from the third valve port, the height valve 64 switches to the second state, the air source is communicated with the air spring 63, the air spring 63 is inflated, and during the counterclockwise rotation of the first rod 651 around the first axis from the horizontal state shown in fig. 6, the third rod 653 is not moved, and the second rod 652 and the flexible member 654 rotate counterclockwise integrally around the second axis; as the air pressure in the air spring 63 increases, the vehicle body moves in the + Z direction (i.e., upward) to drive the altitude valve 64 to move in the + Z direction, the first lever 651 starts to rotate in the opposite direction, specifically, the first lever 651 rotates clockwise around the first axis, the first lever 651 drives the spool of the altitude valve 64 to move in the valve housing, when the first lever 651 of the rocker 65 swings back to the horizontal position as shown in fig. 6, the first valve port is disconnected from the second valve port, the first valve port is disconnected from the third valve port, the altitude valve 64 is switched to the first state, at which time the air spring 63 stops being inflated (the air spring 63 neither inflates nor deflates), during the reverse rotation of the first lever 651, the third lever 653 is stationary, the second lever 652 and the flexible member 654 rotate together clockwise about the second axis, when the first lever 651 is swung back to the horizontal state as shown in fig. 6, the second lever 652 and the flexible member 654 are integrally swung back to the vertical state as shown in fig. 6;
when the vehicle body load is reduced and the vehicle body moves in the + Z direction, the altitude valve 64 also moves in the + Z direction, at this time, the first rod 651 rotates clockwise around the first axis from the horizontal state shown in fig. 6, the first rod 651 drives the valve core of the altitude valve 64 to move in the valve housing, so that the first valve port is disconnected from the second valve port, the first valve port is communicated with the third valve port, the altitude valve 64 is switched to the third state, the air spring 63 exhausts, the third rod 653 is not moved during the clockwise rotation of the first rod 651 around the first axis from the horizontal state shown in fig. 6, and the second rod 652 and the flexible member 654 rotate counterclockwise around the second axis as a whole; as the air pressure decreases, the vehicle body moves in the-Z direction, which drives the altitude valve 64 to move in the-Z direction as well, the first lever 651 starts to rotate in the reverse direction, specifically, the first lever 651 rotates counterclockwise around the first axis, the first lever 651 drives the valve core of the altitude valve 64 to move in the valve housing, when the first lever 651 of the swing link 65 swings back to the horizontal state as shown in fig. 6, the first valve port is disconnected from the second valve port, the first valve port is disconnected from the third valve port, the altitude valve 64 switches to the first state, and at this time, the air spring 63 stops being exhausted (the air spring 63 neither charges nor exhausts air). During the reverse rotation of the first lever 651, the third lever 653 is not moved, the second lever 652 and the flexible member 654 are integrally rotated clockwise about the second axis, and when the first lever 651 is swung back to the horizontal state as shown in fig. 6, the second lever 652 and the flexible member 654 are integrally swung back to the vertical state as shown in fig. 7.
It should be noted that the clockwise and counterclockwise directions are based on the right-left view in the view shown in fig. 6.
Further, air spring assembly 6 also includes a cross travel stop 66, and cross travel stop 66 is disposed between sprung mount 61 and axle assembly 1 to limit lateral displacement of the vehicle body relative to axle assembly 1. Specifically, as shown in fig. 3-4 and 6, the cross stop 66 may be coupled to the first mounting block 41 fixedly mounted to the axle assembly 1 by a fastener such as a bolt, thereby providing a connection between the cross stop 66 and the axle assembly 1. Lateral movement of the vehicle body relative to the truck 100 is inhibited by the lateral travel stops 66 when the vehicle is over-bent or encounters a cross wind.
Alternatively, as shown in fig. 1 and 6, the air spring group 6 may include two air spring groups 6 disposed oppositely in the lateral direction, with the two air spring groups 6 being disposed between the two running wheels 21.
In one embodiment of the present invention, shown in fig. 1 and 7, the truck 100 further includes a stabilizer bar set 7, the stabilizer bar set 7 being disposed between the axle assembly 1 and the vehicle body for suppressing the roll tendency of the vehicle body. Further, stabilizer bar group 7 includes stabilizer bar body 71, two stabilizer bar mounting seats 72 and two connecting rods 73, stabilizer bar body 71 extends along the horizontal direction, stabilizer bar body 71 is connected with axle assembly 1, two stabilizer bar mounting seats 72 are respectively disposed at two ends of stabilizer bar body 71, each stabilizer bar mounting seat 72 extends along the vertical direction, the upper end of stabilizer bar mounting seat 72 is connected with the vehicle body (for example, can be connected through fasteners such as bolts), two ends of connecting rod 73 are respectively rotatably connected on stabilizer bar body 71 and stabilizer bar mounting seats 72, two connecting rods 73 all extend along the vertical direction and are disposed in one-to-one correspondence with two stabilizer bar mounting seats 72, the lower end of stabilizer bar mounting seat 72 is rotatably connected with the upper end of connecting rod 73, stabilizer bar body 71 is rotatably connected with the lower end of connecting rod 73. As shown in fig. 7, stabilizer bar body 71 is fitted in the bushings of two stabilizer bar supporting seats 711, and stabilizer bar supporting seats 711 are fixed to axle assembly 1 by bolts. By providing the stabilizer bar group 7, the roll tendency of the vehicle body can be suppressed, and the vehicle body can be kept stable. Alternatively, as shown in FIG. 1, the stabilizer bar set 7 is provided at one longitudinal end of the axle assembly 1 (the rear end of the axle assembly 1 as shown in FIG. 1).
In one embodiment of the present invention, as shown in fig. 1 and 8, the bogie 100 further includes a vibration damping device 8, the vibration damping device 8 is disposed between the axle assembly 1 and the vehicle body, the vibration damping device 8 includes a vertical vibration damper 81 and a transverse vibration damper 82, a lower end of the vertical vibration damper 81 is rotatably connected to the axle assembly 1, an upper end of the vertical vibration damper 81 is rotatably connected to the vehicle body, one end of the transverse vibration damper 82 is rotatably connected to the axle assembly 1, and the other end of the transverse vibration damper 82 is rotatably connected to a lower end of the stabilizer bar mounting seat 72. As shown in fig. 8, the bogie 100 further includes a first vibration damping mount 83, a second vibration damping mount 84, a third vibration damping mount 85, and a fourth vibration damping mount 86, the first vibration damping mount 83 is connected to the axle assembly 1 (for example, by bolts), the second vibration damping mount 84 is connected between the first vibration damping mount 83 and the third vibration damping mount 85 (for example, by bolts), the fourth vibration damping mount 86 is connected to the lower end of the stabilizer bar mount 72 (for example, by bolts), the lower end of the vertical vibration damper 81 is rotatably connected to the first vibration damping mount 83, one end of the lateral vibration damper 82 is rotatably connected to the third vibration damping mount 85, and the other end of the lateral vibration damper 82 is rotatably connected to the fourth vibration damping mount 86. By arranging the vibration damper 8, the vibration amplitude can be attenuated when the vehicle body floats, sinks and moves transversely.
In an embodiment of the present invention, as shown in fig. 1 and fig. 3 to fig. 4, the bogie 100 further includes a knuckle 91, a guide frame 92 and a steering rod 93, the knuckle 91 is disposed on the axle assembly 1 and is used for mounting the running wheel set 2, the guide frame 92 is connected to the axle assembly 1 through a slewing bearing 94, the guide frame 92 is mounted with the guide wheel set 3, the steering rod 93 is rotatably connected between the guide frame 92 and the knuckle 91, specifically, one end of the steering rod 93 is rotatably connected to the guide frame 92, and the other end of the steering rod 93 is rotatably connected to the knuckle 91. It can be understood that, by connecting the guide frame 92 with the axle assembly 1 through the rotary bearing 94, the guide frame 92 can rotate relative to the axle assembly 1, when the railway vehicle steers, the guide wheel 31 acts with the inner guide type track, the guide frame 92 transmits the acting force to the rotary bearing 94, and the guide frame 92 can rotate, the guide frame 92 transmits the acting force to the steering knuckle 91 through the steering pull rod 93, and finally the acting force between the guide wheel 31 and the inner guide type track is transmitted to the running wheels 21 to achieve steering, so that the self-guiding function of the bogie 100 is achieved, the flexibility and the variability of the railway vehicle can be improved, and the adaptability of the railway vehicle can be further enhanced.
In one embodiment of the present invention, as shown in fig. 1-4, the bogie 100 further includes an electric assembly 96, the electric assembly 96 is connected to the axle assembly 1 (for example, by bolts), and the electric assembly 96 distributes the output power of the motor to the wheel hubs 95 on both sides through a speed reduction mechanism and a differential to rotate the running wheel set 2.
According to the rail vehicle of the embodiment of the second aspect of the present invention, the rail vehicle includes a vehicle body and a bogie 100, and the bogie 100 is mounted on the vehicle body and is the bogie 100 for the rail vehicle according to the above-described embodiment of the first aspect of the present invention.
According to the railway vehicle of the embodiment of the invention, by providing the bogie 100 for the railway vehicle according to the embodiment of the first aspect of the invention, the railway vehicle has all the advantages of the bogie 100, and the description is omitted.
A rail transit system according to an embodiment of the third aspect of the invention includes: an internally guided rail and a railway vehicle that runs along the internally guided rail and that is a railway vehicle according to the embodiment of the above second aspect of the present invention, the bogie 100 is fitted between the vehicle body and the internally guided rail.
According to the rail transit system provided by the embodiment of the invention, the rail vehicle provided by the embodiment of the second aspect of the invention has all the advantages of the rail vehicle, and the description is omitted here.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. A bogie for a railway vehicle, the bogie comprising:
an axle assembly;
the first straight push rod extends linearly along the longitudinal direction, one end of the first straight push rod is rotatably connected with the axle assembly, and the other end of the first straight push rod is rotatably connected with the vehicle body;
the two straight second push rods extend along a longitudinal straight line and are spaced apart in the transverse direction, one end of each straight second push rod is rotatably connected with the axle assembly, the other end of each straight second push rod is rotatably connected with the vehicle body, the straight first push rod is positioned above the two straight second push rods in the vertical direction, and the straight first push rod is positioned between the two straight second push rods in the transverse direction;
elastic parts are arranged at the rotating connection position of the straight first push rod and the axle assembly, the rotating connection position of the straight first push rod and the vehicle body, the rotating connection position of the straight second push rod and the axle assembly and the rotating connection position of the straight second push rod and the vehicle body.
2. The bogie for railway vehicles according to claim 1, wherein the bogie comprises two first mounting seats and two second mounting seats, the two first mounting seats are respectively and rotatably connected to two ends of the straight first push rod, one of the first mounting seats is connected with the axle assembly, and the other first mounting seat is connected with the vehicle body;
the two second mounting seats are respectively and rotatably connected to two ends of the straight second push rod, one of the second mounting seats is connected with the axle assembly, and the other second mounting seat is connected with the vehicle body.
3. The bogie according to claim 1, wherein the bogie comprises two first rotating shafts and two second rotating shafts, the two first rotating shafts are respectively rotatably connected to two ends of the straight first push rod, one of the first rotating shafts is used for being connected with the axle assembly, the other first rotating shaft is used for being connected with the vehicle body, and the outer wall of the first rotating shaft is wrapped with the elastic member;
the two second rotating shafts are respectively and rotatably connected to two ends of the straight second push rod, one of the second rotating shafts is used for being connected with the axle assembly, the other second rotating shaft is used for being connected with the vehicle body, and the elastic part wraps the outer wall of the second rotating shaft.
4. The bogie for railway vehicles according to claim 3, wherein the elastic member is formed as a rubber layer.
5. The bogie for railway vehicles according to claim 1, wherein each of the straight second push rods is telescopic along its length direction, the straight second push rod comprising:
one of the two straight push rod heads is rotationally connected with the axle assembly, and the other straight push rod head is rotationally connected with the vehicle body;
the two straight push rod heads are respectively connected to two ends of the straight push rod barrel in a telescopic manner;
two locking bush, two the locking bush cover is established on the straight push rod section of thick bamboo and establish respectively the both ends of straight push rod section of thick bamboo are in order to lock straight push rod section of thick bamboo with straight push rod head.
6. The bogie for a railway vehicle of claim 1, further comprising at least one air spring set disposed between the axle assembly and the vehicle body.
7. The bogie for railway vehicles of claim 6, wherein the air spring set comprises:
the spring upper mounting seat is connected with the vehicle body;
the lower spring mounting seat is connected with the axle assembly;
the air spring is connected between the upper spring mounting seat and the lower spring mounting seat;
a height valve coupled to the body, the height valve having a first state, a second state, and a third state, the height valve coupled to the air spring, the air spring height being constant when the height valve is in the first state, the air spring sucking air to raise the air spring height when the height valve is in the second state, and the air spring exhausting air to lower the air spring height when the height valve is in the third state;
one end of the swing rod is rotatably connected with the altitude valve, the other end of the swing rod is connected with the axle assembly, the relative height between the vehicle body and the axle assembly changes to drive the swing rod to swing, and the swing of the swing rod can control the altitude valve to be switched among the first state, the second state and the third state.
8. The bogie for railway vehicle of claim 7, wherein the altitude valve has a first port in communication with the air spring, a second port in communication with an air source for air intake, and a third port in communication with ambient atmosphere for exhaust,
when the altitude valve is in the first state, the first port is disconnected from the second port and the first port is disconnected from the third port;
when the altitude valve is in the second state, the first port is communicated with the second port, and the first port is disconnected with the third port;
when the altitude valve is in the third state, the first valve port is disconnected from the second valve port, and the first valve port is communicated with the third valve port.
9. The bogie for railway vehicles of claim 7, wherein the swing link comprises:
a first rod extending horizontally, one end of the first rod being rotatably connected to the altitude valve;
the upper end of the second rod is rotatably connected with the other end of the first rod;
and the upper end of the third rod is connected with the lower end of the second rod through a flexible piece, and the lower end of the third rod is connected with the axle assembly.
10. The bogie for a railway vehicle of claim 7, wherein the air spring set further comprises a lateral stop disposed between the sprung mount and the axle assembly to limit lateral displacement of the vehicle body relative to the axle assembly.
11. The bogie for a railway vehicle of claim 1, further comprising a stabilizer bar set disposed between the axle assembly and the vehicle body for dampening a roll tendency of the vehicle body.
12. The bogie for railway vehicles of claim 11, wherein the stabilizer bar set comprises:
the stabilizer bar body extends along the transverse direction and is connected with the axle assembly;
the two stabilizer bar mounting seats are respectively arranged at two ends of the stabilizer bar body, each stabilizer bar mounting seat extends vertically, and the upper ends of the stabilizer bar mounting seats are connected with the vehicle body;
two connecting rods, the both ends of connecting rod rotate respectively to be connected the stabilizer bar body of rod with on the stabilizer bar mount pad, two the connecting rod all along vertical extension and with two the stabilizer bar mount pad one-to-one sets up.
13. The bogie for a railway vehicle of claim 12, further comprising a vibration damping device disposed between the axle assembly and the vehicle body, the vibration damping device comprising:
the lower end of the vertical shock absorber is rotationally connected with the axle assembly, and the upper end of the vertical shock absorber is rotationally connected with the vehicle body;
and one end of the transverse shock absorber is rotationally connected with the axle assembly, and the other end of the transverse shock absorber is rotationally connected with the lower end of the stabilizer bar mounting seat.
14. The bogie for railway vehicles according to claim 1, further comprising:
the steering knuckle is arranged on the axle assembly and is used for mounting a walking wheel set;
the guide frame is connected with the axle assembly through a slewing bearing and is provided with a guide wheel set; and
and the steering pull rod is rotatably connected between the guide frame and the steering knuckle.
15. A rail vehicle, comprising: a car body and a bogie mounted on the car body and being a bogie for a railway vehicle according to any one of claims 1 to 14.
16. A rail transit system, comprising: an internally guided track and a rail vehicle which runs along the internally guided track and which is a rail vehicle according to claim 15, the bogie being fitted between the vehicle body and the internally guided track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806072.8A CN112441047A (en) | 2019-08-29 | 2019-08-29 | Bogie for railway vehicle, railway vehicle and railway traffic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910806072.8A CN112441047A (en) | 2019-08-29 | 2019-08-29 | Bogie for railway vehicle, railway vehicle and railway traffic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112441047A true CN112441047A (en) | 2021-03-05 |
Family
ID=74741670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910806072.8A Pending CN112441047A (en) | 2019-08-29 | 2019-08-29 | Bogie for railway vehicle, railway vehicle and railway traffic system |
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| Country | Link |
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| CN (1) | CN112441047A (en) |
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Application publication date: 20210305 |