CN109094595B - Railway wagon bogie vibration damping device capable of providing composite vibration damping force - Google Patents
Railway wagon bogie vibration damping device capable of providing composite vibration damping force Download PDFInfo
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- CN109094595B CN109094595B CN201811174538.9A CN201811174538A CN109094595B CN 109094595 B CN109094595 B CN 109094595B CN 201811174538 A CN201811174538 A CN 201811174538A CN 109094595 B CN109094595 B CN 109094595B
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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
- B61F5/04—Bolster supports or mountings
Abstract
The invention discloses a railway wagon bogie damping device capable of providing composite damping force. The damping mechanism consists of a wide inclined wedge damping part installed on the upper plane of the bottom of an inclined wedge groove at the end part of the swing bolster and a spring damping part installed on the lower plane of the bottom of the inclined wedge groove at the end part of the swing bolster, wherein the inclined wedge damping part is connected with the spring damping part through a guide seat. The invention has large contact friction area of the wedge, the lower damping spring is additionally arranged between the wedge and the side frame, the friction resistance of the vehicle when the vehicle is fully loaded is increased, and the upper damping spring and the lower damping spring are adopted in different vertical spaces.
Description
Technical Field
The invention belongs to the technical field of railway vehicle accessory design, particularly belongs to the technical field of railway wagon bogie vibration damper design which is applicable to large axle load and high running speed, and particularly relates to a railway wagon bogie vibration damper capable of providing composite vibration damping force.
Background
For a long time, due to the large number and relatively low running speed, the bogie of the railway freight car mostly adopts a mechanical friction damping device. The mechanical friction vibration damper has simple structure, low cost and convenient manufacture and maintenance. At present, the three large cast steel bogie of the railway freight car generally adopts two types of normal friction resistance wedge type friction damping devices and variable friction resistance wedge type friction damping devices, the bogie adopting the former mode for damping is called a 'control type' bogie, and the latter mode is called a 'stable type' bogie.
The control spring of the 'control type' bogie, namely the damping spring of the damping device, is called as an upper damping spring, is pre-compressed and then is installed on the upper plane of the bottom plate of the wedge groove at the end part of the swing bolster, and only provides the damping force of the bogie and does not provide the bearing force. Because the pre-compression deflection of the control spring is not changed, the friction damping resistance provided by the control spring is not changed along with the change of the load bearing of the bogie; the top end of a damping spring of the stable bogie wedge block type friction damper device is contacted with the lower plane of the wedge, the lower end of the damping spring is located on the side frame spring bearing table surface, and the damping spring provides damping force and bears the load at the same time. The friction damping resistance changes along with the load of the bogie and is in linear proportional relation with the vertical displacement of the damping spring. The relative friction coefficients of the 'stable' bogie can be approximately equal when no load and full load, therefore, the bogie damping effect has no difference between no load and full load and is always 'stable'.
The wedge of the constant friction resistance wedge type vibration damper is a wide wedge, which can better control the diamond deformation of the bogie and has better effect on improving the snaking motion stability of the bogie. However, since the damping resistance is constant, the constant friction resistance wedge type damping device cannot meet the requirement of damping performance of the vehicle under different load working conditions, particularly, as the axle weight increases, the self-weight coefficient of the vehicle becomes smaller, and the constant friction resistance wedge type damping device is easy to have the phenomena of overlarge damping resistance when the vehicle is in no load and insufficient damping resistance when the vehicle is in full load. The shock absorption resistance is overlarge, and the impact of the line steel rail on the wheel pair is directly transmitted to the vehicle body, so that the vibration acceleration of the vehicle is overlarge, the running quality is deteriorated, and the abrasion of each friction pair part of the bogie is accelerated; if the damping resistance is insufficient, the increase in amplitude at the time of vehicle resonance cannot be effectively suppressed, and the hunting stability of the bogie is poor. Although the damping resistance of the variable-friction-resistance wedge type damping device changes along with the change of the bearing load, the wedge structure of the variable-friction-resistance wedge type damping device is influenced by factors such as the spatial arrangement of a central bearing spring, a swing bolster structure and the like, and the variable-friction-resistance wedge type damping device cannot be designed into a wide wedge, so that the contact area between the wedge and a swing bolster and the contact area between the wedge and a side frame are smaller, particularly the contact area between a friction surface of a wedge pair and the swing bolster is smaller, and the capability of a bogie for righting the side frame and the. Therefore, a "stable" bogie employing a variable friction wedge shock absorber must be enhanced in its diamond-shaped stiffness by other mechanisms or other methods to enhance the hunting stability of the bogie.
The normal friction resistance wedge type vibration damper and the variable friction wedge type vibration damper have the characteristics and the advantages and the disadvantages respectively. If a novel wedge type friction damping device can be designed, the wedge type friction damping device has the advantages of the two friction damping devices and can overcome the defects of the two friction damping devices, namely the damping device has the characteristic that the damping performance of the wedge type damping device with variable friction resistance is stable when the wedge type damping device is unloaded and fully loaded, and has the characteristics of better diamond deformation control capability and better snake motion stability of the wedge type damping device with constant friction resistance, the technical performance and the operation quality of a three-piece bogie of a traditional railway wagon can be greatly improved and improved, the abrasion of parts of a vehicle can be greatly reduced, and the manufacturing and application maintenance cost of the vehicle can also be reduced.
Disclosure of Invention
Aiming at the problems, the invention provides the wedge type friction damping device of the railway freight car bogie, which has the advantages of simple structure, reliable performance, convenient operation, maintenance and overhaul, simultaneously has the advantages of the wedge type damping device with variable friction resistance and the wedge type damping device with normal friction resistance, and provides damping resistance in different modes under different load working conditions of a vehicle.
The invention is realized by the following technical scheme:
can provide railway freight car bogie damping device of compound damping force, the bogie includes the truck bloster and lays on the side bearer through central suspension spring, damping device installs in the truck bloster tip, its characterized in that: the damping device comprises two parts, a wide inclined wedge damping part arranged on the upper plane of the bottom of an inclined wedge groove at the end part of the swing bolster and a spring damping part arranged on the lower plane of the bottom of the inclined wedge groove at the end part of the swing bolster, wherein the inclined wedge damping part is connected with the spring damping part through a guide seat.
The inclined wedge vibration reduction part comprises an inclined wedge and an upper vibration reduction spring; the spring damping part comprises a lower damping spring; three top columns are arranged on the upper plane of the guide seat base plate, the three top columns penetrate through guide seat mounting holes in a wedge groove base plate at the end part of the swing bolster and are rigidly fastened with wedges through locking bolts and spring washers, and upper damping springs are positioned between an inner cavity of the wedges and the upper plane at the bottom of the wedge groove; the lower plane of the guide seat plate is provided with a positioning column, the upper end of the lower vibration damping spring is limited and sleeved into the positioning column, and the lower end of the lower vibration damping spring falls on the bearing table surface of the central suspension spring of the side frame.
Three support posts arranged on the upper plane of the guide seat base plate are in clearance fit with guide seat mounting holes in a bottom plate of a tapered wedge groove at the end part of the swing bolster, and a gap is reserved between the upper plane of the guide seat base plate and the lower plane of the bottom plate of the tapered wedge groove at the end part of the swing bolster.
And a gap is reserved between the upper plane of the lower damping spring and the lower plane of the guide seat plate.
The positioning column of the lower plane of the guide seat plate is guaranteed to extend into the inner diameter hole of the lower damping spring when the bogie is in a free state, and a gap is reserved between the inner diameter hole of the lower damping spring and the positioning column of the guide seat in the vertical plane.
The lower vibration reduction spring is of a common bearing structure of an inner circle spring and an outer circle spring.
An annular limiting bulge is arranged on the central suspension spring bearing table board at the lower end of the lower vibration damping spring, and the lower end of the lower vibration damping spring falls into the annular limiting bulge.
The vibration dampers are symmetrically arranged on two sides of the end part of the swing bolster, and four groups of vibration dampers are arranged at two ends of each swing bolster.
The damping device comprises a wedge, an upper damping spring, a guide seat, a lower damping spring, a locking bolt and a spring washer, wherein the locking bolt and the spring washer are used for connecting and fastening the wedge and the guide seat. The damping device is matched with a swing bolster, a side frame and a central suspension spring of three large bogies of the traditional railway wagon to form a bogie mechanical friction damping system. When the vehicle is unloaded, the central suspension spring of the damping system bears the load of the vehicle, and the upper damping spring which is pre-compressed and then installed in the inclined wedge groove of the swing bolster provides damping resistance, and the damping resistance is not maintained to be a constant along with the change of the load bearing of the bogie. When the vehicle is fully loaded, in addition to the upper damping spring being compressed and deformed to continue to provide damping frictional resistance, as the vehicle load increases, the lower damping spring between the side frame and the wedge is also subjected to the load to provide another part of damping frictional resistance when the compression deformation of the central suspension spring exceeds the vertical height difference between the central suspension spring and the guide seat. The lower damping spring is also a bearing spring, so that the part of damping friction resistance changes along with the change of the bearing load of the bogie and is in direct proportion to the vertical displacement of the lower damping spring.
Compared with the prior art, the invention has the following beneficial effects:
the wide inclined wedge is adopted, the contact friction area of the inclined wedge is large, the connection between the truck bolster and the side frame of the bogie can be enhanced, the bogie has better righting capability, the diamond-resistant rigidity of the bogie is improved, the diamond deformation of the bogie can be effectively controlled, and the snaking motion stability of the bogie is improved. For a traditional stable bogie, the mechanism for increasing the diamond-resistant rigidity of the bogie in other modes can be reduced by adopting the wide wedge, and the structure of the bogie is simplified.
The lower damping spring is additionally arranged between the wedge and the side frame, and a certain vertical height difference is arranged between the wedge and the lower damping spring, so that a part of damping resistance is provided when a vehicle is fully loaded, the friction resistance when the vehicle is fully loaded is increased, and simultaneously the newly increased friction resistance is changed along with the change of the vehicle load, thereby improving the problems that the friction resistance and the relative friction coefficient are too small when the traditional 'control type' bogie is fully loaded, and the damping capacity cannot give consideration to no-load and full-load working conditions.
The upper damping spring and the lower damping spring are designed to be arranged in different vertical spaces, the space sizes of the upper damping spring and the lower damping spring are not interfered with each other, the space and the rigidity of the external dimension of the lower damping spring are more selectable, and the design intention of the damping performance of the vehicle can be better realized.
According to the invention, only three threaded connecting holes are added on the wedge structure of the traditional constant friction wedge type vibration damper, and the assembly mode of the wedge and the upper vibration damper spring is kept unchanged. The guide seat is installed after the wedge and the upper damping spring are pressed, the top column of the guide seat is closely attached to the wedge bolt seat, the locking bolt only bears partial vertical force when the wedge is fully loaded, and the lower damping spring is installed in the same way as the central suspension spring. Therefore, the installation method is simple and reliable, and the traditional bogie provided with the constant friction wedge type vibration damper can meet the installation and application requirements only by slightly changing the structure of the inclined wedge groove at the end part of the swing bolster.
The invention has simple and compact structure, is convenient to manufacture, install, maintain and overhaul, has the characteristic of stable damping performance during no-load and full-load, has the characteristics of better control of diamond deformation capability of the bogie and better snake motion stability, and plays an important role in improving the technical performance and the operation quality of the three-piece bogie of the railway wagon, reducing the abrasion of vehicle parts and reducing the manufacturing, application and maintenance cost of the vehicle.
Drawings
FIG. 1 is an isometric schematic of the present invention;
FIG. 2 is a longitudinal center-wise full sectional view of the present invention;
FIG. 3 is a schematic structural view of the wedge of the present invention, taken from the bottom perspective;
FIG. 4 is a schematic, isometric view of a boot base according to the present invention;
FIG. 5 is a schematic illustration of a modified bolster end wedge pocket construction for mounting the present invention, i.e., an isometric view thereof;
fig. 6 is a schematic view of the present invention mounted on a bogie, with one end of the bolster shown in half-section in front elevation.
The labels in the figure are:
1 is a wedge, 1.1 is a nose, 1.2 is a top lower plane, 1.3 is an auxiliary friction surface, 1.4 is a main friction surface, and 1.5 is a bolt seat; 2 is an upper damping spring; 3 is a guide seat, 3.1 is a top column, 3.2 is a positioning column, 3.3 is a bottom plane of a seat plate, 3.4 is an upper plane of the seat plate, 4 is a lower damping spring, 5 is a locking bolt, 6 is a spring washer, 11 is a mounting hole of the guide seat, 12 is an upper plane at the bottom of a wedge groove, 13 is a lower plane at the bottom of the wedge groove, 21 is a swing bolster, 22 is a central suspension spring, 23 is a side frame, 24 is a fastening bolt and nut of a column wear plate, and 25 is a column wear plate of the side frame.
Detailed Description
The present invention is further described below in conjunction with the following detailed description, which is intended to further illustrate the principles of the invention and is not intended to limit the invention in any way, but is equivalent or analogous to the present invention without departing from its scope.
With reference to the attached drawings.
The bogie damping device for railway wagon capable of providing composite damping force comprises a swing bolster 21 and a side frame 23 placed on the swing bolster through a central suspension spring 22, the damping device is installed at the end part of the swing bolster 21 and comprises two parts, a wide inclined wedge damping part installed on an upper plane 12 at the bottom of an inclined wedge groove at the end part of the swing bolster and a spring damping part installed on a lower plane 13 at the bottom of the inclined wedge groove at the end part of the swing bolster are connected with the spring damping parts through guide seats 3.
The inclined wedge vibration reduction part comprises an inclined wedge 1 and an upper vibration reduction spring 2; the spring damping part comprises a lower damping spring 4; three top columns 3.1 are arranged on the upper plane 3.4 of the base plate of the guide seat 3, the three top columns 3.1 penetrate through a guide seat mounting hole 11 on the bottom plate of the inclined wedge groove at the end part of the swing bolster 21 and are rigidly fastened with the inclined wedge through a locking bolt 5 and a spring washer 6, and an upper damping spring 2 is positioned between an inner cavity of the inclined wedge and the upper plane 12 at the bottom of the inclined wedge groove; a positioning column 3.2 is arranged on the lower plane 3.3 of the guide seat plate, the upper end of a lower damping spring 4 is in limited sleeving with the positioning column 3.2, and the lower end of the lower damping spring falls on the bearing table surface of a central suspension spring 22 of the side frame.
Three support columns 3.1 arranged on the upper plane 3.4 of the base plate of the guide seat 3 are in clearance fit with guide seat mounting holes 11 on the bottom plate of the inclined wedge groove at the end part of the swing bolster 21, and a clearance is reserved between the upper plane 3.4 of the base plate of the guide seat 3 and the lower plane 13 of the bottom plate of the inclined wedge groove at the end part of the swing bolster 21.
A gap is reserved between the upper plane of the lower damping spring 4 and the lower plane 3.3 of the seat plate of the guide seat 3.
The positioning column 3.2 of the lower plane 3.3 of the base plate of the guide seat 3 is ensured to extend into the inner diameter hole of the lower damping spring 4 when the bogie is in a free state, and a gap is reserved between the inner diameter hole of the lower damping spring 4 and the positioning column 3.2 of the guide seat 3 in the vertical plane.
The lower damping spring 4 can be a common bearing structure of an inner circular spring and an outer circular spring or a single spring bearing structure.
An annular limiting bulge is arranged on the bearing surface of the central suspension spring 22 at the lower end of the lower damping spring 4, and the lower end of the lower damping spring 4 falls into the annular limiting bulge.
The vibration damping devices are symmetrically arranged on two sides of the end part of the swing bolster, and four groups of the vibration damping devices are arranged at two ends of each swing bolster.
As shown in fig. 1 and 2, the wedge type friction damping device for a railway freight car, which provides a composite damping resistance, includes a wedge 1, an upper damping spring 2, a guide seat 3, a lower damping spring 4, a lock bolt 5, a spring washer 6, and the like. The damping device is used as a damping device of a three-piece bogie of a railway wagon, and forms a bogie damping system together with a side frame 23, a swing bolster 21 and a central suspension spring.
As shown in fig. 3, the tapered wedge 1 is a wide tapered wedge, the middle of the tapered wedge is hollowed, the auxiliary friction surfaces 1.3 on two sides are lower than the middle nose part 1.1, the bottom surface of the tapered wedge is respectively cast with a bolt seat 1.5 at the lower end of the nose part 1.1 and the inner side of the main friction surface 1.4 and at the lower side of the two auxiliary friction surfaces 1.3, and a threaded hole with a certain depth is finely machined in the bolt seat 1.5.
As shown in fig. 4, the guide seat 3 is of an integrally cast steel structure or a forged assembly welding structure, three top pillars 3.1 corresponding to the bolt seats 1.5 of the wedge 1 are arranged on the upper plane 3.4 of the seat plate, and a through hole is formed in the center of each top pillar 3.1, so that the locking bolt 5 can conveniently penetrate through the through hole to fasten the guide seat 3 and the bolt seats 1.5 of the wedge 1. A positioning column 3.2 structure is arranged at the center of the lower plane 3.3 of the seat plate, and is mainly used for installing the lower damping spring 4 in place.
As shown in fig. 5, when the guide seat 3 and the wedge 1 are assembled, the wedge 1 is already installed in the wedge groove at the end of the swing bolster 21 in advance, the seat plate of the guide seat 3 is located at the lower side of the bottom plate of the swing bolster 21, and a through hole is formed in the bottom plate of the wedge groove at the end of the swing bolster 21 corresponding to the top pillar 3.1 of the guide seat 3 to serve as a guide seat installation hole 11, and it is ensured that the top pillar 3.1 has a certain amount of movement in the guide seat installation hole 11 in the longitudinal direction and the transverse direction.
As shown in FIG. 6, when the invention is installed on a bogie, the upper damping spring 2 is firstly installed on the middle hollowed part of the inclined wedge 1, one end of the upper damping spring 2 is propped against the lower plane 1.2 at the top of the inclined wedge 1, then the whole body is pressed in the inclined wedge groove at the end part of the assembled swing bolster 21, and the inclined wedge 1 and the upper damping spring 2 are fixed in the inclined wedge groove at the end part of the swing bolster 21 by adopting a process positioning pin. And then the three top columns 3.1 of the guide seat 3 correspond to the bolt seats 1.5 of the inclined wedge 1 through the guide seat mounting holes 11 at the inclined wedge groove of the swing bolster 21, and the guide seat 3 is fastened on the inclined wedge 1 by using the locking bolts 5 and the spring washers 6. At the moment, a vertical clearance is formed between the upper plane 3.4 of the base plate of the guide seat 3 and the lower plane 13 of the bottom of the inclined wedge groove of the swing bolster, and if the design requirements are not met, gaskets with different thicknesses can be installed at the contact part of the top column 3.1 of the guide seat 3 and the bolt seat 1.5 of the inclined wedge 1 for adjustment. After the rest 3 parts of the vibration damping system on the swing bolster 21 are installed, the swing bolster 21 is embedded into the central square frames of the two side frames according to the traditional three-piece bogie assembling method, and the central suspension spring 22 and the lower vibration damping spring 4 are installed. After the central suspension spring 22 and the lower damping spring 4 are installed, the swing bolster 21 falls down, the process pin for fixing the wedge 1 is taken out, the wedge 1 moves to the upper side and the outer side of the swing bolster 21 under the action of the counter force of the upper damping spring 2, and the main friction surface 1.4 and the auxiliary friction surface 1.3 are respectively in close contact with the side frame column abrasion plate 25 and the swing bolster splayed abrasion plate. At this time, a vertical height difference Δ H exists between the lower damping spring 4 and the lower plane 3.3 of the seat plate of the guide seat 3. After the load of the vehicle is applied, the Δ H is gradually reduced, and when the Δ H is reduced to 0, the lower damping spring 4 is applied with the load, and the load is transmitted to the inclined wedge 1 through the guide seat 3, so that the friction resistance acting on the inclined wedge 1 is increased, the relative friction coefficient of the bogie after the load of the vehicle is increased, and the damping performance of the bogie is improved.
In another embodiment of the vibration damping device, a countersunk hole is formed in the center of the top column 3.1 on the guide seat 3, and the guide seat 3 and the wedge 1 are fastened through a countersunk screw. At the moment, the lower plane 3.3 of the guide seat plate is of a plane structure except the positioning column 3.2, the height of the lower damping spring 4 can be increased, so that the deflection of the lower damping spring 4 is improved, and in addition, the lower damping spring 4 can be designed into an inner circle spring and an outer circle spring to bear together as required, so that the heavy vehicle friction resistance is improved.
Claims (7)
1. A railway freight car bogie damping device that can provide compound damping force, the bogie includes the truck bloster and lays on the side bearer through central suspension spring, damping device installs in the truck bloster tip, its characterized in that: the damping device consists of two parts, namely a wide inclined wedge damping part arranged on the upper plane of the bottom of an inclined wedge groove at the end part of the swing bolster and a spring damping part arranged on the lower plane of the bottom of the inclined wedge groove at the end part of the swing bolster, wherein the inclined wedge damping part is connected with the spring damping part through a guide seat; the inclined wedge vibration reduction part comprises an inclined wedge and an upper vibration reduction spring; the spring damping part comprises a lower damping spring; the upper plane of the guide seat base plate is provided with three top posts, the three top posts penetrate through guide seat mounting holes on a wedge groove base plate at the end part of the swing bolster and are rigidly fastened with a wedge through locking bolts and spring washers, and an upper damping spring is positioned between an inner cavity of the wedge and the upper plane at the bottom of the wedge groove; the lower plane of the guide seat plate is provided with a positioning column, the upper end of the lower vibration damping spring is limited and sleeved into the positioning column, and the lower end of the lower vibration damping spring falls on the bearing table surface of the central suspension spring of the side frame.
2. A railway freight car truck shock absorber apparatus for providing a composite damping force as defined in claim 1, wherein: three support posts arranged on the upper plane of the guide seat base plate are in clearance fit with guide seat mounting holes in a bottom plate of a tapered wedge groove at the end part of the swing bolster, and a gap is reserved between the upper plane of the guide seat base plate and the lower plane of the bottom plate of the tapered wedge groove at the end part of the swing bolster.
3. A railway freight car truck shock absorber apparatus for providing a composite damping force as defined in claim 1, wherein: and a gap is reserved between the upper plane of the lower damping spring and the lower plane of the guide seat plate.
4. A railway freight car truck shock absorber apparatus as defined in claim 3, which provides a combined damping force, wherein: the positioning column of the lower plane of the guide seat plate is guaranteed to extend into the inner diameter hole of the lower damping spring when the bogie is in a free state, and a gap is reserved between the inner diameter hole of the lower damping spring and the positioning column of the guide seat in the vertical plane.
5. A railway freight car truck shock absorber apparatus as defined in claim 4, which provides a composite damping force, wherein: the lower vibration reduction spring is of a common bearing structure of an inner circle spring and an outer circle spring.
6. A railway freight car truck shock absorber apparatus as defined in claim 4, which provides a composite damping force, wherein: an annular limiting bulge is arranged on the central suspension spring bearing table board at the lower end of the lower vibration damping spring, and the lower end of the lower vibration damping spring falls into the annular limiting bulge.
7. A railway freight car truck shock absorber apparatus as claimed in any one of claims 1 to 6, which provides a composite damping force, wherein: the vibration dampers are symmetrically arranged on two sides of the end part of the swing bolster, and four groups of vibration dampers are arranged at two ends of each swing bolster.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174538.9A CN109094595B (en) | 2018-10-09 | 2018-10-09 | Railway wagon bogie vibration damping device capable of providing composite vibration damping force |
| AU2018445294A AU2018445294B2 (en) | 2018-10-09 | 2018-11-15 | Railway wagon bogie vibration damping device capable of providing composite vibration damping force |
| PCT/CN2018/115546 WO2020073420A1 (en) | 2018-10-09 | 2018-11-15 | Railway wagon bogie vibration damping device capable of providing composite vibration damping force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174538.9A CN109094595B (en) | 2018-10-09 | 2018-10-09 | Railway wagon bogie vibration damping device capable of providing composite vibration damping force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109094595A CN109094595A (en) | 2018-12-28 |
| CN109094595B true CN109094595B (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174538.9A Active CN109094595B (en) | 2018-10-09 | 2018-10-09 | Railway wagon bogie vibration damping device capable of providing composite vibration damping force |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109094595B (en) |
| AU (1) | AU2018445294B2 (en) |
| WO (1) | WO2020073420A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301462A (en) * | 2020-03-16 | 2020-06-19 | 成都工业学院 | Railway wagon bogie with normal friction and variable friction wedge damping performance |
| CN112124348B (en) * | 2020-09-27 | 2022-02-01 | 成都工业学院 | Assembly method of railway wagon control type bogie damping device |
| CN114152451B (en) * | 2021-11-10 | 2023-06-06 | 柳州铁道职业技术学院 | Steering power detection device and method for quick truck bogie |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7571684B2 (en) * | 2001-08-01 | 2009-08-11 | National Steel Car Limited | Rail road freight car with damped suspension |
| CN102514584A (en) * | 2011-12-09 | 2012-06-27 | 南车眉山车辆有限公司 | Bogie of narrow gauge railway vehicle |
| CN102556098A (en) * | 2012-01-13 | 2012-07-11 | 南车长江车辆有限公司 | Variable friction control type oscillating damper of rail wagon |
| CN203332129U (en) * | 2013-07-22 | 2013-12-11 | 济南轨道交通装备有限责任公司 | Framework-type bogie damping device |
| CN107244332A (en) * | 2017-07-24 | 2017-10-13 | 中车齐齐哈尔车辆有限公司 | Railway goods train bogie |
| CN209037580U (en) * | 2018-10-09 | 2019-06-28 | 中车眉山车辆有限公司 | A kind of railway goods train bogie vibration absorber can provide combined vibration-damping power |
-
2018
- 2018-10-09 CN CN201811174538.9A patent/CN109094595B/en active Active
- 2018-11-15 WO PCT/CN2018/115546 patent/WO2020073420A1/en active Application Filing
- 2018-11-15 AU AU2018445294A patent/AU2018445294B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7571684B2 (en) * | 2001-08-01 | 2009-08-11 | National Steel Car Limited | Rail road freight car with damped suspension |
| CN102514584A (en) * | 2011-12-09 | 2012-06-27 | 南车眉山车辆有限公司 | Bogie of narrow gauge railway vehicle |
| CN102556098A (en) * | 2012-01-13 | 2012-07-11 | 南车长江车辆有限公司 | Variable friction control type oscillating damper of rail wagon |
| CN203332129U (en) * | 2013-07-22 | 2013-12-11 | 济南轨道交通装备有限责任公司 | Framework-type bogie damping device |
| CN107244332A (en) * | 2017-07-24 | 2017-10-13 | 中车齐齐哈尔车辆有限公司 | Railway goods train bogie |
| CN209037580U (en) * | 2018-10-09 | 2019-06-28 | 中车眉山车辆有限公司 | A kind of railway goods train bogie vibration absorber can provide combined vibration-damping power |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2018445294B2 (en) | 2023-01-12 |
| WO2020073420A1 (en) | 2020-04-16 |
| CN109094595A (en) | 2018-12-28 |
| AU2018445294A1 (en) | 2021-03-04 |
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