CN111216757B - Inner side frame type self-guiding bogie and railway wagon - Google Patents
Inner side frame type self-guiding bogie and railway wagon Download PDFInfo
- Publication number
- CN111216757B CN111216757B CN202010167030.7A CN202010167030A CN111216757B CN 111216757 B CN111216757 B CN 111216757B CN 202010167030 A CN202010167030 A CN 202010167030A CN 111216757 B CN111216757 B CN 111216757B
- Authority
- CN
- China
- Prior art keywords
- self
- bogie
- side bearing
- braking
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009434 installation Methods 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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
- B61F5/14—Side bearings
-
- 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
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
- B61F5/32—Guides, e.g. plates, for axle-boxes
-
- 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
- B61F5/52—Bogie frames
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses an inner side framework type self-guiding bogie and a railway wagon, wherein the bogie comprises wheel pairs, a primary suspension system, axle boxes, an inner side framework, a self-guiding mechanism, an elastic side bearing and a braking device, and the inner side framework comprises side beams, guide frames, cross beams, a braking hanging seat and a side bearing mounting seat; the wheel set, the axle box and the primary suspension system are assembled and then are arranged at the front end and the rear end of the inner side framework, the side beams are positioned at the inner side of the wheel set, and the elastic side bearings are arranged on the side bearing mounting seats; the braking device is positioned below the braking hanging seat, the middle part of the inner side framework and the front and rear ends of the core disc, and braking force is generated by clamping the braking disc by the braking clamp; the lower part of the axle box is provided with a connecting rod installation shaft, the self-guiding mechanism is installed at the lower part of the bogie, and the self-guiding mechanism is connected with the four axle boxes through the connecting rod installation shaft at the lower part of the axle box to form a mechanism for enabling the wheel set to move radially. After the self-steering bogie is assembled on the railway wagon, the wheel abrasion is reduced, the running performance is improved, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to an inner side frame type self-guiding bogie and a railway wagon, and belongs to the technical field of railway vehicle bogies.
Background
With the development and progress of railway freight car technology, higher requirements are put forward on the running performance and dead weight of railway freight cars, and the requirements are met for the reduction of dead weight of railway freight cars, and the railway freight cars have good running performance on a straight line, good running performance on a curve and smaller wheel abrasion. To meet this requirement, the existing conventional bogie structure must be updated, an inboard frame bogie is used, and a wheel set radial adjustment function is required. The bogie with the novel structure can effectively reduce the dead weight of the bogie, realize that the bogie has good running performance on a straight line, has good running performance and smaller wheel abrasion on a curve, can improve the running performance of a vehicle, and reduces the cost of the whole life cycle of the vehicle. The existing bogie has large dead weight and insufficient radial positioning function of wheel sets on curves.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides an inner side frame type self-guiding bogie and a railway wagon, which are characterized in that the dead weight is reduced by adopting an inner side frame, and the radial positioning of bogie wheel pairs on a curve is realized by adopting a self-guiding mechanism.
The invention provides an inner side frame type self-guiding bogie, which comprises a wheel pair, a primary suspension system, axle boxes, an inner side frame, a self-guiding mechanism, an elastic side bearing and a braking device, wherein the inner side frame comprises side beams, guide frames, cross beams, a braking hanging seat and side bearing mounting seats; the braking device is arranged below the braking hanging seat through an installation seat and bolts and is positioned at the middle part of the inner side framework and the front and rear ends of the core disc, and braking force is generated by clamping the braking disc through a braking clamp; the lower part of the axle box is provided with a connecting rod installation shaft, the self-guiding mechanism is installed at the lower part of the bogie, and the self-guiding mechanism is connected with the four axle boxes through the connecting rod installation shaft at the lower part of the axle box to form a mechanism for enabling the wheel set to move radially.
The wheel set adopts a bearing built-in structure and comprises wheels, an axle, brake discs and bearings, wherein the two bearings are positioned on the inner sides of the two wheels, and the brake discs are arranged in the middle of the axle and only one brake disc.
The primary suspension system comprises a spring group and a rubber pile, wherein the two spring groups are positioned on two sides of the rubber pile.
The axle box comprises an axle box body, a connecting rod installation shaft and a spring guide post, wherein the connecting rod installation shaft is cast on one side of the lower part of the axle box body and used for connecting a connecting rod of the self-guiding mechanism.
The inner side framework is an H-shaped framework, the side beams adopt a concave structure, and guide frames are welded at two ends of the side beams; the beam is welded between the two side beams in a splicing way, and the middle part of the beam is welded with the lower center plate; the braking hanging seat is welded at the front end and the rear end of the cross beam, and the side bearing mounting seat is welded at the outer side of the side beam.
The self-guiding mechanism comprises a trapezoid side rod, a transverse connecting rod, a front connecting rod, a pin shaft and a fastening sleeve ring, wherein the trapezoid side rod is hinged with the transverse connecting rod through the pin shaft, the front connecting rod is hinged with the transverse connecting rod through the pin shaft, and meanwhile one ends of the two front connecting rods are intersected and hinged through the pin shaft.
The elastic side bearing comprises a side bearing spring, an upper side bearing seat, a wearing plate, a lower side bearing seat, a stop and a nut, wherein the side bearing spring is arranged between the upper side bearing seat and the lower side bearing seat; the stop is arranged in the side bearing spring, and the lower threaded joint of the stop is provided with a nut which is fastened on the bogie frame.
The braking device comprises a cylinder, a lever, a mounting seat, a brake pad support and a brake pad, wherein the lever is respectively mounted at the front end and the rear end of the cylinder, the brake pad and the brake pad support are mounted at the front part of the lever, and the mounting seat is arranged at the top of the braking device.
The invention also provides a railway wagon equipped with an inboard frame self-steering bogie.
The beneficial effects are that: the invention adopts an inner side framework as a structural bearing part of the bogie and a self-guiding mechanism as a guiding and positioning part of a bogie wheel pair. The invention not only reduces the dead weight of the bogie, but also enables the bogie to pass through the curve without depending on the car body, and only depends on the self-rolling guidance property of the wheel pairs and the self-guiding mechanism to enable the front wheel pairs and the rear wheel pairs to tend to the radial position, thereby realizing the radial positioning of the wheel pairs on the curve, reducing the wheel abrasion, improving the running performance of the bogie, reducing the maintenance cost of the bogie, and having beneficial effects on the application and maintenance of the bogie.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic top view of the structure of the present invention;
FIG. 3 is a schematic view of a wheel set structure of the present invention;
FIG. 4 is a schematic view of a primary suspension system according to the present invention;
FIG. 5 is a schematic illustration of an axle housing of the present invention;
FIG. 6 is a schematic view of the medial frame of the present invention;
FIG. 7 is a schematic view of a self-guiding mechanism of the present invention;
FIG. 8 is a schematic view of a resilient side bearing of the present invention;
Fig. 9 is a schematic view of a brake device of the present invention.
In the figure: 1 wheel set, 11 wheels, 12 axles, 13 brake discs and 14 bearings; 2a first suspension system, a 21 spring group and a 22 rubber pile; a 3 axle box, a 31 connecting rod installation shaft and a 32 spring guide post; 4 inner side frames, 41 side beams, 42 guide frames, 43 cross beams, 44 brake hanging seats and 45 side bearing mounting seats; the self-guiding mechanism, the 51 trapezoid side rod, the 52 transverse connecting rod, the 53 front connecting rod, the 54 pin shaft and the 55 fastening lantern ring are arranged; 6 elastic side bearing, 61 side bearing spring, 62 upper side bearing seat, 63 wearing plate, 64 lower side bearing seat, 65 stop, 66 nut; 7 brake equipment, 71 cylinder, 72 levers, 73 mount pad, 74 brake block holds in the palm, 75 brake blocks.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic front view of the structure of the present invention.
Fig. 2 shows a schematic top view of the structure of the present invention.
The invention provides an inner side frame type self-guiding bogie, which comprises a wheel set 1, a primary suspension system 2, an axle box 3, an inner side frame 4, a self-guiding mechanism 5, an elastic side bearing 6 and a brake device 7, wherein the inner side frame 4 comprises a side beam 41, a guide frame 42, a cross beam 43, a brake hanging seat 44 and a side bearing mounting seat 45, the wheel set 1, the axle box 3 and the primary suspension system 2 are assembled and then are arranged at the front end and the rear end of the inner side frame 4 through the guide frame 42, the side beam 41 is positioned at the inner side of the wheel set 1, and the elastic side bearing 6 is arranged on the side bearing mounting seat 45 and is used for providing a rotation resistance moment and limiting the side rolling angle of a vehicle body when passing through a curve; the braking device 7 is arranged below the braking hanging seat 44 through a mounting seat 73 and bolts and is positioned at the middle part of the inner side framework 4 and at the front and rear ends of the core disc, and braking force is generated by clamping the braking disc 13 through a braking clamp; the lower part of the axle box 3 is provided with a connecting rod installation shaft 31, the self-guiding mechanism 5 is installed at the lower part of the bogie, and the self-guiding mechanism 5 and the four axle boxes 3 are connected together through the connecting rod installation shaft 31 at the lower part of the axle box 3 to form a mechanism for enabling the wheel set to move radially.
Fig. 3 shows a schematic view of a wheel set structure according to the present invention.
The wheel set 1 adopts a bearing built-in structure, and comprises wheels 11, an axle 12, brake discs 13 and bearings 14, wherein the two bearings 14 are positioned on the inner sides of the two wheels 11, and the brake discs 13 are arranged in the middle of the axle 12 and only one brake disc 13 is arranged.
FIG. 4 is a schematic view of a primary suspension system according to the present invention.
The primary suspension system 2 comprises a spring stack 21 and a rubber stack 22, the two spring stacks 21 being located on both sides of the rubber stack 22.
Fig. 5 shows a schematic diagram of an axle housing of the present invention.
The axle box 3 comprises an axle box body, a connecting rod installation shaft 31 and a spring guide post 32, wherein one side of the lower part of the axle box body is cast with the connecting rod installation shaft 31 for connecting a connecting rod of the self-guiding mechanism 5.
Fig. 6 shows a schematic view of the medial frame of the present invention.
The inner side framework 4 is an H-shaped framework, the side beam 41 adopts a concave structure, and guide frames 42 are welded at two ends of the side beam 41; the cross beam 43 is spliced and welded between the two side beams 41, and a lower center plate is welded in the middle of the cross beam 43; brake shoes 44 are welded to both front and rear ends of the cross member 43, and side bearing mounts 45 are welded to outer sides of the side members 41.
Fig. 7 is a schematic view of the self-guiding mechanism of the present invention.
The self-guiding mechanism 5 comprises a trapezoid side rod 51, a transverse connecting rod 52, a front connecting rod 53, a pin shaft 54 and a fastening sleeve ring 55, wherein the trapezoid side rod 51 is hinged with the transverse connecting rod 52 through the pin shaft 54, the front connecting rod 53 is hinged with the transverse connecting rod 52 through the pin shaft 54, and one ends of the two front connecting rods 53 are intersected and hinged through the pin shaft 54.
FIG. 8 is a schematic view of a resilient side bearing of the present invention.
The elastic side bearing 6 includes a side bearing spring 61, an upper side bearing seat 62, a wear plate 63, a lower side bearing seat 64, a stopper 65, and a nut 66, the side bearing spring 61 being installed between the upper side bearing seat 62 and the lower side bearing seat 64; the stop 65 is mounted in the side bearing spring 61 and its lower threaded joint is mounted to a nut 66 fastened to the bogie frame.
Fig. 9 is a schematic view of a brake device according to the present invention.
The braking device 7 comprises an air cylinder 71, a lever 72, a mounting seat 73, a brake pad support 74 and a brake pad 75, wherein the lever 72 is respectively mounted at the front end and the rear end of the air cylinder 71, the brake pad 75 and the brake pad support 74 are mounted at the front part of the lever 72, and the mounting seat 73 is arranged at the top of the braking device 7.
The invention reduces the transverse span of the framework and reduces the framework quality by adopting the inner framework; by adopting the single brake disc and the wheel set with the built-in bearing, the number of the brake discs is reduced, the length of an axle is shortened, and the quality of the wheel set is effectively reduced. So that the mass of the whole bogie is also effectively reduced.
When the bogie passes through a curve, the front wheel pair and the rear wheel pair can roll towards the radial position only by virtue of the rolling guidance property of the wheel pair and the self-guiding mechanism, so that the radial positioning of the wheel pair on the curve is realized, and the running performance of the vehicle is improved.
The invention can provide the rotation resistance moment required by the stable running of the vehicle and limit the side rolling angle of the vehicle by installing the elastic side bearing.
The invention also provides a railway wagon equipped with an inboard frame self-steering bogie.
The invention adopts an inner side framework as a structural bearing part of the bogie and a self-guiding mechanism as a guiding and positioning part of a bogie wheel pair. The invention not only reduces the dead weight of the bogie, but also enables the bogie to pass through the curve without depending on the car body, and only depends on the self-rolling guidance property of the wheel pairs and the self-guiding mechanism to enable the front wheel pairs and the rear wheel pairs to tend to the radial position, thereby realizing the radial positioning of the wheel pairs on the curve, reducing the wheel abrasion, improving the running performance of the bogie, reducing the maintenance cost of the bogie, and having beneficial effects on the application and maintenance of the bogie.
The above-described embodiments of the invention are intended to be examples only, and not to be limiting, and all changes that come within the scope of the invention or equivalents thereto are intended to be embraced thereby.
Claims (7)
1. An inboard frame-type self-steering bogie, characterized in that: the side beam (41) is positioned on the inner side of the wheel set (1), the elastic side bearing (6) is arranged on the side bearing mounting seat (45) and used for providing rotation resistance moment and limiting the side rolling angle of a vehicle body when passing through curves; the braking device (7) is arranged below the braking hanging seat (44) through a mounting seat (73) and bolts, is positioned in the middle of the inner side framework (4) and at the front end and the rear end of the core disc, and braking force is generated by clamping the braking disc (13) through a braking clamp; the lower part of the axle box (3) is provided with a connecting rod installation shaft (31), the self-guiding mechanism (5) is installed at the lower part of the bogie, and the self-guiding mechanism (5) is connected with the four axle boxes (3) through the connecting rod installation shaft (31) at the lower part of the axle box (3) to form a mechanism for enabling the wheel set (1) to move radially; the self-guiding mechanism (5) comprises trapezoid side rods (51), transverse connecting rods (52), front connecting rods (53), pin shafts (54) and fastening lantern rings (55), wherein the trapezoid side rods (51) are hinged with the transverse connecting rods (52) through the pin shafts (54), the front connecting rods (53) are hinged with the transverse connecting rods (52) through the pin shafts (54), and meanwhile one ends of the two front connecting rods (53) are intersected and hinged through the pin shafts (54); the elastic side bearing (6) comprises a side bearing spring (61), an upper side bearing seat (62), a wearing plate (63), a lower side bearing seat (64), a stop (65) and a nut (66), wherein the side bearing spring (61) is arranged between the upper side bearing seat (62) and the lower side bearing seat (64); the stop (65) is mounted in a side bearing spring (61) and its lower threaded joint is mounted on a nut (66) fastened to the bogie frame.
2. The inboard frame self-steering bogie of claim 1, wherein: the wheel set (1) adopts a bearing built-in structure and comprises wheels (11), axles (12), brake discs (13) and bearings (14), wherein the two bearings (14) are positioned on the inner sides of the two wheels (11), and the brake discs (13) are arranged in the middle of the axles (12) and only one brake disc (13).
3. The inboard frame self-steering bogie of claim 1, wherein: the primary suspension system (2) comprises a spring group (21) and a rubber pile (22), wherein the two spring groups (21) are positioned on two sides of the rubber pile (22).
4. The inboard frame self-steering bogie of claim 1, wherein: the axle box (3) comprises an axle box body, a connecting rod installation shaft (31) and a spring guide pillar (32), wherein the connecting rod installation shaft (31) is cast on one side of the lower part of the axle box body and is used for connecting a connecting rod of the self-guiding mechanism (5).
5. The inboard frame self-steering bogie of claim 1, wherein: the inner side framework (4) is an H-shaped framework, the side beams (41) adopt a concave structure, and guide frames (42) are welded at two ends of the side beams (41); the cross beam (43) is spliced and welded between the two side beams (41), and a lower center plate is welded in the middle of the cross beam (43); brake suspension brackets (44) are welded to the front and rear ends of the cross beam (43), and side bearing mounting brackets (45) are welded to the outer sides of the side beams (41).
6. The inner frame self-steering bogie as recited in any one of claims 1-5 wherein: the braking device (7) comprises an air cylinder (71), a lever (72), a mounting seat (73), a brake pad support (74) and a brake pad (75), wherein the lever (72) is respectively installed at the front end and the rear end of the air cylinder (71), the brake pad (75) and the brake pad support (74) are installed at the front part of the lever (72), and the mounting seat (73) is arranged at the top of the braking device (7).
7. A railway wagon, characterized in that: an inboard frame self-steering bogie as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167030.7A CN111216757B (en) | 2020-03-11 | 2020-03-11 | Inner side frame type self-guiding bogie and railway wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167030.7A CN111216757B (en) | 2020-03-11 | 2020-03-11 | Inner side frame type self-guiding bogie and railway wagon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111216757A CN111216757A (en) | 2020-06-02 |
| CN111216757B true CN111216757B (en) | 2024-05-28 |
Family
ID=70830023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010167030.7A Active CN111216757B (en) | 2020-03-11 | 2020-03-11 | Inner side frame type self-guiding bogie and railway wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111216757B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114056367B (en) * | 2020-08-04 | 2023-06-27 | 中车山东机车车辆有限公司 | Inside suspension direct-drive radial bogie and truck |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117125A (en) * | 2006-07-31 | 2008-02-06 | 南车四方机车车辆股份有限公司 | Centre pin type guiding compelling radial direction mechanism |
| KR20090059536A (en) * | 2007-12-06 | 2009-06-11 | 한국철도기술연구원 | The self steering bogie for railway vehicle |
| CN103339013A (en) * | 2010-11-01 | 2013-10-02 | Rsd-Dcd-多宝股份有限公司分公司 | Self-steering railway bogie |
| CN103496376A (en) * | 2013-10-14 | 2014-01-08 | 南车长江车辆有限公司 | Bogie of railway freight car |
| CN104527698A (en) * | 2014-12-17 | 2015-04-22 | 济南轨道交通装备有限责任公司 | Radial device of plate-spring-type bogie |
| CN211893231U (en) * | 2020-03-11 | 2020-11-10 | 中车山东机车车辆有限公司 | Inner side framework type self-steering bogie and railway wagon |
-
2020
- 2020-03-11 CN CN202010167030.7A patent/CN111216757B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117125A (en) * | 2006-07-31 | 2008-02-06 | 南车四方机车车辆股份有限公司 | Centre pin type guiding compelling radial direction mechanism |
| KR20090059536A (en) * | 2007-12-06 | 2009-06-11 | 한국철도기술연구원 | The self steering bogie for railway vehicle |
| CN103339013A (en) * | 2010-11-01 | 2013-10-02 | Rsd-Dcd-多宝股份有限公司分公司 | Self-steering railway bogie |
| CN103496376A (en) * | 2013-10-14 | 2014-01-08 | 南车长江车辆有限公司 | Bogie of railway freight car |
| CN104527698A (en) * | 2014-12-17 | 2015-04-22 | 济南轨道交通装备有限责任公司 | Radial device of plate-spring-type bogie |
| CN211893231U (en) * | 2020-03-11 | 2020-11-10 | 中车山东机车车辆有限公司 | Inner side framework type self-steering bogie and railway wagon |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111216757A (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112550340B (en) | Bogie and rail vehicle | |
| CN203358608U (en) | Low-power radial welding bogie | |
| CN209683708U (en) | A kind of built-in lightweight bogie of EMU non-powered axle box | |
| WO2013091319A1 (en) | High speed railway vehicle bogie | |
| CN101857033B (en) | 80km/h speed class B-type subway vehicle bogie | |
| CA2423646C (en) | Radial bogie with steering beam mount unitized brake | |
| CN109878545B (en) | Tramcar and bogie | |
| CN110877624A (en) | Built-in trailer bogie of high-speed motor train unit axle box | |
| CN103786739A (en) | Low-power radial welding bogie | |
| CN111216756A (en) | Inner side framework type forced guide bogie and railway vehicle | |
| CN112356871A (en) | Bogie for inner axle box of railway vehicle | |
| CN113415303B (en) | Bogie with self-running wheel set and self-guiding mechanism and railway wagon | |
| CN211893231U (en) | Inner side framework type self-steering bogie and railway wagon | |
| CN101934740A (en) | Levitation frame device for high-speed magnetic levitation train | |
| CN112441044A (en) | Disc type braking railway wagon bogie | |
| CN111216757B (en) | Inner side frame type self-guiding bogie and railway wagon | |
| WO2021135198A1 (en) | Bolster-less framed bogie suitable for high-speed freight wagon | |
| CN217145983U (en) | Power bogie suitable for suspension type monorail engineering vehicle | |
| CN215621977U (en) | Bogie with self-running wheel pair and self-guiding mechanism and railway wagon | |
| CN101837792A (en) | Trailer bogie for metric rail | |
| CN111976775B (en) | Automatic radial bogie of independent wheel of centering | |
| CN211335988U (en) | Bogie traction device | |
| CN111114575B (en) | Embedded butt-joint type axle box positioning device capable of actively adjusting longitudinal displacement | |
| CN114394120A (en) | High dynamic performance railway wagon bogie | |
| CN213323111U (en) | Monorail overhead tourist car bogie and driving wheel axle group mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |