CN113771905B - Single-wheel-pair hinged type middle bogie - Google Patents
Single-wheel-pair hinged type middle bogie Download PDFInfo
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- CN113771905B CN113771905B CN202111145506.8A CN202111145506A CN113771905B CN 113771905 B CN113771905 B CN 113771905B CN 202111145506 A CN202111145506 A CN 202111145506A CN 113771905 B CN113771905 B CN 113771905B
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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
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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
- B61F3/00—Types of bogies
- B61F3/12—Types of bogies specially modified for carrying adjacent vehicle bodies of articulated trains
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Abstract
The invention provides a single-wheel-pair articulated intermediate bogie which comprises walking wheels, an unsprung framework, a secondary suspension system, an sprung framework and an articulated device, wherein the walking wheels are arranged on the middle bogie; the number of the walking wheels is two, and the walking wheels are respectively arranged on two sides of the unsprung framework; the hinge device comprises a bottom spherical hinge component and a top spherical hinge component; the bottom spherical hinge assembly is arranged at the bottom of the main frame, and the sprung frame is connected with the bottoms of the two adjacent carriages through the bottom spherical hinge assembly; the top spherical hinge assembly is arranged at the top of the main framework, and the main framework is connected with the top of any one of the two adjacent carriages through the top spherical hinge assembly; the secondary suspension system is disposed between the sprung frame and the unsprung frame. The single-wheel-pair hinged middle bogie improves the curve passing performance and the running stability of the train, greatly reduces the abrasion of the traveling wheels, and is suitable for light rubber-wheel overhead sightseeing trains of our company.
Description
Technical Field
The invention relates to the technical field of tourist coaches, in particular to a single-wheel-pair hinged type middle bogie.
Background
At present, rubber wheel trains are more in types, and the structural form of a bogie of the rubber wheel train is mainly divided into a single-shaft rubber wheel bogie and a double-shaft rubber wheel bogie. The common double-shaft rubber wheel bogie mainly comprises a traction motor, a gear box, a basic braking part, two groups of travelling wheels, auxiliary wheels, a power receiving shoe, a stabilizing wheel and an air spring; the traction motor is powered by the collector shoe, and the output end of the traction motor is connected with the gear box; the two groups of travelling wheels are respectively connected with the gear box through transmission shafts; the number of the auxiliary wheels is the same as that of the travelling wheels, and the auxiliary wheels are symmetrically arranged on two sides of the two groups of travelling wheels along the length direction of the train; the stabilizing wheels are arranged right below the two groups of walking wheels; the air spring is arranged right above the two groups of travelling wheels; and the basic braking component is used for braking the two groups of road wheels. The double-shaft rubber-tyred bogie is complex in structure, high in cost, large in loss of running tires and not suitable for light rubber-tyred overhead sightseeing trains of our company.
The existing single-shaft rubber wheel bogie is mostly a patent product of other companies, such as a single-shaft rubber wheel bogie of the Ponbadi company. However, the existing single-axle rubber wheel bogie is arranged at the bottom of the carriage, and each carriage is provided with two bogies; furthermore this type of bogie is only suitable for single track operation; and the light rubber-tyred overhead sightseeing train of our company needs to run on double tracks when in use. Therefore, the structural form of the existing single-shaft rubber wheel bogie is not suitable for the light rubber wheel overhead sightseeing train of our company.
In conclusion, a single-wheel pair hinged type intermediate bogie is urgently needed to solve the problems that a double-shaft rubber wheel bogie in the prior art is complex in structure and high in cost, and the structural form of the existing single-shaft rubber wheel bogie is not suitable for the use of the light rubber wheel overhead sightseeing train of our company.
Disclosure of Invention
The invention aims to provide a single-wheel-pair hinged type middle bogie, which has the following specific technical scheme:
a single-wheel-pair articulated intermediate bogie comprises walking wheels, an unsprung framework, a secondary suspension system, a sprung framework and an articulation device;
the number of the walking wheels is two, and the walking wheels are respectively arranged on two sides of the unsprung framework;
the hinge device comprises a bottom spherical hinge component and a top spherical hinge component;
the bottom spherical hinge assembly is arranged on the sprung frame, and the sprung frame is connected with the bottoms of the two adjacent carriages through the bottom spherical hinge assembly;
the spring upper framework is arranged on the spring lower framework and comprises a main framework, a first sub-framework and a second sub-framework, and the main framework is of a portal frame structure and is vertically arranged on the spring lower framework;
the top spherical hinge assembly is arranged at the top of the main framework, and the main framework is connected with the top of any one of the two adjacent carriages through the top spherical hinge assembly; the first sub-framework and the second sub-framework are respectively arranged on two sides of the main framework in the width direction;
the secondary suspension system is arranged between the first sub-frame and the unsprung frame and between the second sub-frame and the unsprung frame; the secondary suspension system comprises at least three groups of traction positioning pull rods, and all the traction positioning pull rods are distributed above and below a central connecting line of the two groups of walking wheels; one end of each group of traction positioning pull rods is connected with the unsprung framework, and the other end of each group of traction positioning pull rods is connected with the sprung framework; each group of the traction positioning pull rods has the same length.
Preferably, the bottom spherical hinge assembly comprises a first spherical hinge and a second spherical hinge, and the first spherical hinge and the second spherical hinge are arranged on the bottom of the main frame and positioned on two sides of the main frame on a central line along the length direction of the carriage; the first spherical hinge is connected with the front carriage in the train running direction, and the second spherical hinge is connected with the rear carriage in the train running direction;
the top spherical hinge assembly comprises a third spherical hinge, a first spherical hinge connecting rod and a second spherical hinge connecting rod, and the third spherical hinge is arranged on the main framework and is vertical to a connecting line of the first spherical hinge; the first spherical hinge connecting rod and the second spherical hinge connecting rod both comprise free ends and connecting ends, and the connecting ends of the first spherical hinge connecting rod and the second spherical hinge connecting rod are connected with a third spherical hinge; the free ends of the first spherical hinge connecting rod and the second spherical hinge connecting rod are respectively connected with the top of the previous carriage in the running direction of the train, and an included angle is formed between the first spherical hinge connecting rod and the second spherical hinge connecting rod.
Preferably, the secondary suspension system further comprises a secondary spring, a vertical shock absorber, a transverse shock absorber, a vertical rubber stopper, a transverse rubber stopper and an anti-rolling device;
the secondary springs are in multiple groups and are distributed on two sides of a connecting line of the centers of the two traveling wheels; one end of each group of secondary springs is connected with the first sub-framework or the second sub-framework, and the other end of each group of secondary springs is connected with the unsprung framework;
the number of the vertical shock absorbers is the same as that of the secondary springs, and the vertical shock absorbers are arranged in one-to-one correspondence with the secondary springs; one end of the vertical shock absorber is connected with the unsprung framework, and the other end of the vertical shock absorber is connected with the sprung framework; the vertical rubber stopper is fixedly arranged on the first sub-frame or the second sub-frame;
the transverse rubber stopper is fixedly arranged on the unsprung framework, one end of the transverse shock absorber is connected with the unsprung framework, and the other end of the transverse shock absorber is connected with the bottom of the sprung framework main framework;
the anti-roll device is arranged between the unsprung frame and the sprung frame.
Preferably, the vertical rubber stopper comprises a first rubber block and a first fixing piece; the first fixing piece is fixedly connected with the first sub-frame or the second sub-frame, and the first rubber block is arranged between the first fixing piece and the unsprung frame and is fixedly connected with the first fixing piece.
Preferably, the transverse rubber stopper comprises a second rubber block and a second fixing piece; the second fixing piece is fixedly connected with the unsprung framework, and the second rubber block is arranged between the second fixing piece and the main framework and is fixedly connected with the second fixing piece.
Preferably, the single-wheel-pair articulated intermediate bogie further comprises guide wheels, and the guide wheels are arranged below the walking wheels and used for being tightly attached to the track.
Preferably, the single-wheel-pair hinged middle bogie further comprises an anti-rolling shock absorber, the anti-rolling shock absorber is arranged at the top of the main frame and is respectively located on two sides of the main frame together with the top spherical hinge assembly, and one end, far away from the main frame, of the anti-rolling shock absorber is connected with the carriage.
The technical scheme of the invention at least has the following beneficial effects:
(1) The single-wheel-pair articulated intermediate bogie adopts a single-wheel-pair walking wheel structure, has the advantages of simple structure and low cost, reduces the weight of the whole vehicle, reduces the height of the mass center of the vehicle and improves the maintainability of the single-wheel-pair articulated intermediate bogie; the vertical load and the transverse load between the sprung frame and the unsprung frame are transmitted through the secondary suspension system, the functions of buffering and vibration damping are achieved, and the side rolling movement is limited; the traction positioning pull rod is used for transmitting longitudinal traction force and braking force between the sprung frame and the unsprung frame, vertical and transverse relative movement between the sprung frame and the unsprung frame is not influenced, vertical and transverse translation between the sprung frame and the unsprung frame can be kept, and the functions of resisting nodding (rotating around a Y axis) and shaking (rotating around a Z axis) are achieved. The single-wheel-pair hinged middle bogie is connected with the carriage through the bottom spherical hinge assembly and the top spherical hinge assembly, so that the curve passing performance and the running stability of the train are improved, and the abrasion of the traveling wheels is greatly reduced. The single-wheel-pair hinged intermediate bogie is suitable for light rubber-tyred overhead sightseeing trains of our company.
(2) The single-wheel-pair hinged intermediate bogie adopts a single-wheel-pair type traveling wheel structure, reduces the number of wheel pairs of train traveling wheels, and further reduces the train weight and the train manufacturing cost. Bogie is connected with the carriage through bottom ball pivot subassembly, top ball pivot subassembly in the middle of the single wheel is articulated, promptly bogie is located between two adjacent carriages in the middle of the single wheel is articulated for the walking wheel is located between two adjacent carriages, thereby has reduced the train focus, makes train dynamics better on the one hand, and on the other hand has reduced the effort of train operation to the track, and then has reduced the track cost.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a single-wheel-pair articulated intermediate bogie of embodiment 1 of the present invention disposed on a track;
FIG. 2 is a view of a hidden portion of one of the single wheelset articulated intermediate bogies of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
FIG. 5 is a left side view of FIG. 1;
FIG. 6 is a schematic illustration of the single wheelset articulated intermediate truck assembly of FIG. 1 in use on a train;
the device comprises a walking wheel 1, a walking wheel 2, an unsprung framework 3, a traction positioning pull rod 4, an unsprung framework 4.1, a main framework 4.2, a first sub-framework 4.3, a second sub-framework 5, a first spherical hinge 6, a second spherical hinge 7, a third spherical hinge 8, a secondary spring 9, a vertical shock absorber 10, a transverse rubber stop 11, a guide wheel 12, an anti-rolling shock absorber 13, a first spherical hinge connecting rod 14, a second spherical hinge connecting rod 15, an anti-rolling device A, a carriage B and a track.
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Example 1:
referring to fig. 1-6, a single-wheel-pair articulated intermediate bogie comprises traveling wheels 1, an unsprung frame 2, a secondary suspension system, a traction positioning pull rod 3, an sprung frame 4 and an articulation device;
the number of the walking wheels 1 is two, and the walking wheels are respectively arranged on hollow shafts at two sides of the unsprung framework 2 through bearings;
the hinge device comprises a bottom spherical hinge assembly and a top spherical hinge assembly;
the bottom spherical hinge assembly is arranged on the sprung frame 4, and the sprung frame 4 is connected with the bottoms of the two adjacent carriages A through the bottom spherical hinge assembly;
referring to fig. 1 and 5, the sprung frame 4 is disposed on the unsprung frame 2, the sprung frame 4 includes a main frame 4.1, a first sub-frame 4.2, and a second sub-frame 4.3, the main frame 4.1 is a portal frame structure, and is disposed vertically on the unsprung frame 2; the top spherical hinge assembly is arranged at the top of the main framework 4.1, and the main framework 4.1 is connected with the top of any carriage A of the two adjacent carriages A through the top spherical hinge assembly; the first sub-frame 4.2 and the second sub-frame 4.3 are respectively arranged at two sides of the main frame 4.1 in the width direction;
referring to fig. 1-3 and 5, the secondary suspension system is disposed between the first sub-frame 4.2 and the unsprung frame 2, and between the second sub-frame 4.3 and the unsprung frame 2; the secondary suspension system comprises four groups of traction positioning pull rods 3 (each group of traction positioning pull rods 3 comprises a pull rod body and spherical hinge components arranged at two ends of the pull rod body), and all the traction positioning pull rods 3 are symmetrically distributed above and below the central connecting line of the two groups of walking wheels 1; one end of each group of traction positioning pull rods 3 is connected with a first sub-frame 4.2 or a second sub-frame 4.3 in the sprung frame 4, and the other end is connected with the unsprung frame 2; the lengths of the traction positioning pull rods 3 in each group are equal; specifically, one end of each of the two groups of traction and positioning pull rods 3 is connected with a first sub-frame 4.2 in the sprung frame 4 through a corresponding upper mounting seat, and the other end of each of the two groups of traction and positioning pull rods is connected with the unsprung frame 2 through a corresponding lower mounting seat; one end of the other two groups of traction and positioning pull rods 3 is connected with a second sub-frame 4.3 in the sprung frame 4 through the corresponding upper mounting seat, and the other end is connected with the unsprung frame 2 through the corresponding lower mounting seat. When the train runs stably, two groups of traction positioning pull rods 3 positioned above the central connecting line of the two groups of running wheels 1 are in a horizontal state and are positioned at the same height; two groups of traction positioning pull rods 3 positioned below the central connecting line of the two groups of walking wheels 1 are in a horizontal state and are positioned at the same height. When the train runs in a curve (bumps and turns), the traction positioning pull rod 3 is arranged for transmitting longitudinal traction force and braking force between the sprung frame 4 and the unsprung frame 2, and does not influence vertical and transverse relative motion between the sprung frame 4 and the unsprung frame 2, so that vertical and transverse translation between the sprung frame 4 and the unsprung frame 2 can be kept, and the functions of resisting a point head (rotating around a Y axis) and resisting a shaking head (rotating around a Z axis) are achieved.
If the number of the traction positioning pull rods 3 is three, one of the two groups of traction positioning pull rods 3 above the central connecting line of the two groups of walking wheels 1 or the two groups of traction positioning pull rods 3 below the central connecting line of the two groups of walking wheels 1 can be reduced by one, and the rest group of traction positioning pull rods 3 in the position are arranged in the middle of the original two groups of traction positioning pull rods 3 in a translation manner, one end of the rest traction positioning pull rods 3 is connected with a main frame 4.1 in the sprung frame 4 through an upper mounting seat, and the other end of the rest traction positioning pull rods 3 is connected with the unsprung frame 2 through a lower mounting seat.
Referring to fig. 1 and 3-5, the bottom spherical hinge assembly comprises a first spherical hinge 5 and a second spherical hinge 6, and the first spherical hinge 5 and the second spherical hinge 6 are arranged on the bottom of the main frame 4.1 and are positioned on two sides of the main frame 4.1 on a central line along the length direction of the compartment a; the first spherical hinge 5 is connected with the previous carriage A in the train running direction, and the second spherical hinge 6 is connected with the next carriage A in the train running direction; the bottom spherical hinge assembly is used for realizing the adjustment of the displacement freedom degrees in the x direction, the y direction and the z direction between two adjacent carriages A and the single-wheel pair hinged type middle bogie and transferring vertical, longitudinal and transverse loads.
The top spherical hinge assembly comprises a third spherical hinge 7, a first spherical hinge connecting rod 13 and a second spherical hinge connecting rod 14, and the third spherical hinge 7 is arranged in the middle of the main frame 4.1 and is vertical to a connecting line of the first spherical hinge 5; the first spherical hinge connecting rod 13 and the second spherical hinge connecting rod 14 both comprise a free end and a connecting end, and the connecting ends of the first spherical hinge connecting rod 13 and the second spherical hinge connecting rod 14 are connected with the third spherical hinge 7; first ball pivot connecting rod 13 and No. two ball pivot connecting rod 14 respectively with the train traffic direction the top in the preceding section carriage A be connected, be equipped with the contained angle between first ball pivot connecting rod 13 and No. two ball pivot connecting rod 14, the setting of this contained angle is convenient for ensure that carriage A atress is even. The use of the top spherical hinge assembly limits the rotational freedom degrees of the single-wheel pair hinged type middle bogie and the carriage A in the x direction and the y direction, so that the train can smoothly pass through a curve while keeping stable operation.
Referring to fig. 1-3 and 5, the secondary suspension system further comprises a secondary spring 8, a vertical damper 9, a lateral damper (not shown), a vertical rubber stopper (not shown), a lateral rubber stopper 10 and an anti-roll device 15;
the number of the secondary springs 8 is four (each group of secondary springs 8 comprises a spring body and a rubber pad arranged at least one end of the spring body), and the secondary springs are distributed at two sides of a central connecting line of the two walking wheels 1, and are specifically arranged at four corners of a space surrounded by the sprung frame 4, the first sub-frame 4.2 and the second sub-frame 4.3; wherein, one end of the two groups of secondary springs 8 is connected with the two ends of the first sub-frame 4.2, and the other end is connected with the unsprung frame 2; one end of the other two groups of secondary springs 8 is connected with two ends of the second sub-frame 4.3, and the other end is connected with the unsprung frame 2;
the number of the vertical shock absorbers 9 is the same as that of the secondary springs 8, and the vertical shock absorbers are arranged in one-to-one correspondence with the secondary springs 8; one end of the vertical shock absorber 9 is connected with the unsprung frame 2, and the other end is connected with the sprung frame 4; two vertical rubber stoppers are fixedly arranged on the first sub-frame 4.2, and the other two vertical rubber stoppers are fixedly arranged on the second sub-frame 4.3; the secondary spring 8, the vertical shock absorber 9 and the vertical rubber stopper are arranged and used for transmitting vertical load between the sprung frame 4 and the unsprung frame 2 and playing roles in buffering and damping;
the transverse rubber stoppers 10 are fixedly arranged on the unsprung frame 2, the number of the transverse rubber stoppers 10 is two, and the transverse rubber stoppers are distributed along the direction of the central connecting line of the two traveling wheels 1; one end of the transverse shock absorber is connected with the unsprung framework 2, and the other end of the transverse shock absorber is connected with the bottom of a main framework 4.1 of the sprung framework 4; the transverse rubber stopper 10 and the transverse shock absorber are arranged and used for transmitting transverse load between the sprung frame 4 and the unsprung frame 2 and playing roles in buffering and damping;
the anti-roll device (existing structure) 15 is arranged on the unsprung frame 2 and is connected to the sprung frame 4 through spherical hinge struts at both ends of the torsion bar. The anti-roll device 15 is used to limit roll motion (in particular, rotational motion about the X-axis).
The vertical rubber stopper comprises a first rubber block and a first fixing piece (specifically an iron sheet); the first fixing parts are fixedly connected with the first sub-frame 4.2 through bolts, the other two first fixing parts are fixedly connected with the second sub-frame 4.3, the first rubber blocks are arranged between the first fixing parts and the unsprung frame 2, and the four first rubber blocks are fixedly connected with the corresponding first fixing parts.
The transverse rubber stopper 10 comprises a second rubber block and a second fixing piece (specifically an iron sheet); the second fixing pieces are fixedly connected with the unsprung framework 2 through bolts, one of the second rubber blocks is arranged between the corresponding second fixing piece and the main framework 4.1, the other second rubber block is arranged between the corresponding second fixing piece and the main framework 4.1, and the two second rubber blocks are fixedly connected with the corresponding second fixing pieces.
The single-wheel-pair hinged middle bogie further comprises guide wheels 11, wherein the guide wheels 11 are arranged below the walking wheels 1 and used for being tightly attached to the track B. Specifically, the number of the guide wheels 11 is four, and two sets of guide wheels 11 are arranged on two sides of one walking wheel 1 and are positioned below the walking wheel 1; the other two groups of guide wheels 11 are arranged at two sides of the other walking wheel 1 and are positioned below the walking wheel 1; the four groups of guide wheels 11 are used for clinging to the inner side web of the track B to play a role in guiding and prevent the train from derailing.
Referring to fig. 1 and fig. 3-4, the single-wheel-pair articulated intermediate bogie further comprises an anti-roll damper 12, the anti-roll damper 12 is arranged on the top of the main frame 4.1 and is respectively positioned on two sides of the main frame 4.1 together with the top spherical hinge assembly, and one end of the anti-roll damper 12 far away from the main frame 4.1 is connected with a compartment a (namely, the compartment a adjacent to the compartment a connected with the top spherical hinge assembly).
The single-wheel-pair articulated intermediate bogie adopts a single-wheel-pair walking wheel structure, has the advantages of simple structure and low cost, reduces the weight of the whole vehicle, reduces the height of the mass center of the vehicle and improves the maintainability of the single-wheel-pair articulated intermediate bogie; the vertical load and the transverse load between the sprung frame 4 and the unsprung frame 2 are transmitted through a secondary suspension system, the functions of buffering and vibration damping are achieved, and the side rolling movement is limited; the traction positioning pull rod 3 is used for transmitting longitudinal traction force and braking force between the sprung frame 4 and the unsprung frame 2, and does not influence vertical and transverse relative motion between the sprung frame 4 and the unsprung frame 2, so that vertical and transverse translation can be kept between the sprung frame 4 and the unsprung frame 2, and the functions of resisting nodding (rotating around a Y axis) and shaking (rotating around a Z axis) are achieved. The single-wheel-pair hinged middle bogie is connected with the carriage A through the bottom spherical hinge assembly and the top spherical hinge assembly, so that the curve passing performance and the running stability of the train are improved, the stable running of the train is ensured, and the abrasion of the traveling wheels 1 is greatly reduced. The single-wheel-pair hinged intermediate bogie is suitable for light rubber-tyred overhead sightseeing trains of our company.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A single-wheel-pair articulated intermediate bogie is characterized by comprising walking wheels (1), an unsprung framework (2), a secondary suspension system, an sprung framework (4) and an articulation device;
the number of the walking wheels (1) is two, and the walking wheels are respectively arranged on two sides of the unsprung framework (2);
the hinge device comprises a bottom spherical hinge assembly and a top spherical hinge assembly;
the bottom spherical hinge assembly is arranged on the sprung framework (4), and the sprung framework (4) is connected with the bottoms of two adjacent carriages (A) through the bottom spherical hinge assembly;
the sprung framework (4) is arranged on the unsprung framework (2), the sprung framework (4) comprises a main framework (4.1), a first sub-framework (4.2) and a second sub-framework (4.3), and the main framework (4.1) is of a portal frame structure and is vertically arranged on the unsprung framework (2);
the top spherical hinge assembly is arranged at the top of the main framework (4.1), and the main framework (4.1) is connected with the top of any carriage (A) of the two adjacent carriages (A) through the top spherical hinge assembly; the first sub-framework (4.2) and the second sub-framework (4.3) are respectively arranged at two sides of the main framework (4.1) in the width direction;
the secondary suspension system is arranged between the first sub-frame (4.2) and the unsprung frame (2), and between the second sub-frame (4.3) and the unsprung frame (2); the secondary suspension system comprises traction positioning pull rods (3), the number of the traction positioning pull rods (3) is at least three, and all the traction positioning pull rods (3) are distributed above and below the central connecting line of the two groups of walking wheels (1); one end of each group of traction positioning pull rods (3) is connected with the unsprung framework (2), and the other end is connected with the sprung framework; the lengths of each group of traction positioning pull rods (3) are equal;
the bottom spherical hinge assembly comprises a first spherical hinge (5) and a second spherical hinge (6), and the first spherical hinge (5) and the second spherical hinge (6) are arranged on the bottom of the main framework (4.1) and positioned on two sides of the main framework (4.1) on a central line along the length direction of the carriage (A); the first spherical hinge (5) is connected with the front carriage (A) in the running direction of the train, and the second spherical hinge (6) is connected with the rear carriage (A) in the running direction of the train;
the top spherical hinge assembly comprises a third spherical hinge (7), a first spherical hinge connecting rod (13) and a second spherical hinge connecting rod (14), and the third spherical hinge (7) is arranged on the main framework (4.1) and is vertical to the connecting line of the first spherical hinge (5); the first spherical hinge connecting rod (13) and the second spherical hinge connecting rod (14) both comprise a free end and a connecting end, and the connecting ends of the first spherical hinge connecting rod (13) and the second spherical hinge connecting rod (14) are connected with the third spherical hinge (7); the free ends of the first spherical hinge connecting rod (13) and the second spherical hinge connecting rod (14) are respectively connected with the top of the previous carriage (A) in the running direction of the train, and an included angle is formed between the first spherical hinge connecting rod (13) and the second spherical hinge connecting rod (14).
2. The single-wheelset articulated intermediate bogie according to claim 1, characterized in that the secondary suspension system further comprises a secondary spring (8), a vertical damper (9), a lateral damper, a vertical rubber stop, a lateral rubber stop (10) and an anti-roll device (15);
the secondary springs (8) are in multiple groups and are distributed on two sides of the central connecting line of the two walking wheels (1); one end of each group of secondary springs (8) is connected with the first sub-framework (4.2) or the second sub-framework (4.3), and the other end is connected with the unsprung framework (2);
the number of the vertical shock absorbers (9) is the same as that of the secondary springs (8), and the vertical shock absorbers are arranged in one-to-one correspondence with the secondary springs (8); one end of the vertical shock absorber (9) is connected with the unsprung framework (2), and the other end is connected with the sprung framework (4); the vertical rubber stopper is fixedly arranged on the first sub-frame (4.2) or the second sub-frame (4.3);
the transverse rubber stopper (10) is fixedly arranged on the unsprung framework (2), one end of the transverse shock absorber is connected with the unsprung framework (2), and the other end of the transverse shock absorber is connected with the bottom of a main framework (4.1) of the sprung framework (4);
the anti-rolling device (15) is arranged between the unsprung frame (2) and the sprung frame (4).
3. The single-wheelset articulated intermediate truck of claim 2, wherein the vertical rubber stop comprises a first rubber block and a first fixed member; the first fixing piece is fixedly connected with the first sub-frame (4.2) or the second sub-frame (4.3), and the first rubber block is arranged between the first fixing piece and the unsprung frame (2) and is fixedly connected with the first fixing piece.
4. Single wheelset articulated intermediate bogie according to claim 2, characterized in that the transverse rubber stop (10) comprises a second rubber block and a second fixing piece; the second fixing piece is fixedly connected with the unsprung framework (2), and the second rubber block is arranged between the second fixing piece and the main framework (4.1) and is fixedly connected with the second fixing piece.
5. A single-wheelpair articulated intermediate bogie according to any one of claims 1 to 4, characterized in that it further comprises guide wheels (11), which guide wheels (11) are arranged below the running wheels (1) for abutment against the track (B).
6. The single-wheel-pair articulated intermediate bogie according to claim 5, further comprising an anti-roll damper (12), wherein the anti-roll damper (12) is arranged on the top of the main frame (4.1) and is respectively positioned on two sides of the main frame (4.1) together with the top spherical hinge assembly, and one end of the anti-roll damper (12) far away from the main frame (4.1) is connected with the carriage (A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145506.8A CN113771905B (en) | 2021-09-28 | 2021-09-28 | Single-wheel-pair hinged type middle bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111145506.8A CN113771905B (en) | 2021-09-28 | 2021-09-28 | Single-wheel-pair hinged type middle bogie |
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| CN115123332B (en) * | 2022-07-29 | 2023-05-23 | 中车唐山机车车辆有限公司 | Bogie frame of single wheel pair trailer |
| CN117509050B (en) * | 2023-11-20 | 2024-05-03 | 北京朗信智能科技有限公司 | Walking mechanism |
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| CN1234350A (en) * | 1998-05-05 | 1999-11-10 | 杜瓦格公司 | Articulating device for adjacent car-bodies of railway locomotive specially for suburb traffic |
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| CN113771905A (en) | 2021-12-10 |
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