CN111232007B - Elastic bag active longitudinal positioning and driving device arranged in axle box - Google Patents
Elastic bag active longitudinal positioning and driving device arranged in axle box Download PDFInfo
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- CN111232007B CN111232007B CN202010018430.1A CN202010018430A CN111232007B CN 111232007 B CN111232007 B CN 111232007B CN 202010018430 A CN202010018430 A CN 202010018430A CN 111232007 B CN111232007 B CN 111232007B
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- axle box
- mandrel
- longitudinal positioning
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- rubber
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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
- B61F5/26—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
- B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
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Abstract
The invention relates to an elastic bag active action longitudinal positioning and driving device arranged in an axle box, which comprises an axle box body and an axle box rear end cover, wherein a mandrel is arranged between the axle box body and the axle box rear end cover, the axle box body and the axle box rear end cover are mutually butted to form an axle box with a cavity inside, a bag type longitudinal positioning unit which is symmetrical about the axis of the mandrel is arranged in the axle box cavity, two rubber bags in the bag type longitudinal positioning unit are respectively connected with two sides of the mandrel through metal supports, and the longitudinal positioning rigidity of a wheel pair and a bogie frame is provided by filling oil and maintaining pressure in the rubber bags on two sides of the mandrel; the longitudinal displacement of the wheel set and the bogie frame is adjusted by injecting oil into the single-side rubber bag of the mandrel and pressurizing the rubber bag to generate expansion action. Compared with the prior art, the invention can simultaneously realize the longitudinal positioning and the longitudinal displacement adjustment between the wheel set and the bogie frame, and has the advantages of compact layout, simple structure and convenient disassembly, assembly and maintenance.
Description
Technical Field
The invention relates to a longitudinal positioning and driving device for a shaft box, in particular to an active longitudinal positioning and driving device for a radial bogie.
Background
In a railway vehicle construction, the axlebox locating device is capable of transferring the tractive or braking forces acting on the wheelset crown to the bogie frame, primarily through the longitudinal stiffness of the axlebox locating device. Current axle box positioner when carrying out the longitudinal positioning between wheel pair and the bogie frame, generally adopt the mode of external actuator, when the train goes through the curve, for the operating stationarity who guarantees the train, need the actuator that the design size is big enough to provide sufficient longitudinal positioning rigidity, produce the power that great promotion wheel pair removed, this overall dimension and the complexity that can increase whole axle box positioner structure undoubtedly, be not convenient for realize the engineering fast and use.
On the other hand, in order to ensure that the bogie frame can stably pass through a curve, the longitudinal displacement between the wheel set and the bogie frame can be adjusted in real time while the longitudinal positioning is carried out, the conventional axle box positioning device adjusts the longitudinal displacement between the wheel set and the bogie frame by additionally adjusting the working state of an external actuator, and the real-time relevance between the longitudinal positioning and the longitudinal displacement adjustment is reduced by the mode, so that the longitudinal positioning and the longitudinal displacement adjustment cannot be reliably and synchronously carried out.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an active longitudinal positioning and driving device which is compact in layout and simple in structure, and can synchronously realize longitudinal positioning and longitudinal displacement adjustment between a wheel pair and a bogie frame on the basis of ensuring longitudinal rigidity.
The purpose of the invention can be realized by the following technical scheme:
a longitudinal positioning and driving device with an active action of an elastic bag arranged in an axle box is used for realizing longitudinal positioning and longitudinal displacement adjustment between a wheel pair and a bogie frame and comprises an axle box body and an axle box rear end cover, wherein the axle box body and the axle box rear end cover are connected to form a complete axle box, a cavity is formed in the axle box and used for placing a bag type longitudinal positioning unit, a mandrel is arranged between the axle box body and the axle box rear end cover, and a transverse positioning rubber pile is sleeved outside the mandrel;
the bag type longitudinal positioning unit comprises two groups of elastic bags, the two groups of elastic bags are respectively connected with the mandrel, the two groups of elastic bags are symmetrical about the axis of the mandrel, and the internal parts of the elastic bags on the two sides of the mandrel are filled with oil and pressure to maintain certain bearing capacity, so that the longitudinal positioning rigidity between the wheel pair and the bogie frame is provided; the longitudinal displacement between the wheel set and the bogie frame is adjusted by injecting oil and pressurizing the inside of the elastic bag on one side of the mandrel to cause the elastic bag to generate expansion action.
The elastic bag is specifically a rubber bag, the rubber bag is connected to the core shaft through a metal support, and the rubber bag and the metal support are vulcanized into an integral structure.
The metal support is characterized in that threaded interfaces are arranged on two sides of the mandrel and used for being connected with the metal support, threads matched with the interfaces are arranged at the bottom of the metal support, and a combined sealing gasket is arranged between the mandrel and the metal support.
And an oil supply hole for installing a hydraulic joint is processed at the end part of the mandrel so as to communicate the outside of the axle box with the inner cavity of the rubber bag.
The axle box comprises an axle box body and is characterized in that a displacement sensor used for measuring longitudinal displacement is connected between the outside of the axle box body and a bogie frame, one end of the displacement sensor is connected to the bogie frame through a displacement sensor mounting seat, and the other end of the displacement sensor is connected to the axle box body through a mounting boss.
The axle box body and the axle box rear end cover are mutually butted through an outer hexagon bolt.
The auxiliary rubber spring is used for assisting in providing vertical rigidity, and is connected with a first mounting seat arranged on the bogie frame and a second mounting seat arranged on the axle box body through pin columns at two ends respectively, the transverse positioning rubber pile is connected with a rotary arm node pressing plate, and the rotary arm node pressing plate applies pretightening force to the auxiliary rubber spring through the transverse positioning rubber pile.
The transverse positioning rubber pile is specifically a pre-deformation rubber pile so as to adapt to vertical shearing deformation in the process of applying pretightening force.
Compared with the prior art, the invention has the following advantages:
(1) the bag-type longitudinal positioning units are all arranged in the axle box inner cavity, so that the external space of the axle box is not occupied, the structure is simple, the layout is compact, the external dimension of the axle box is not changed, the assembly, disassembly and maintenance are convenient, the whole axle box is not interfered with the conventional bogie frame structure, and the engineering application is easy to realize quickly;
(2) the symmetrical elastic bag type longitudinal positioning units are adopted, the structure is simple, the working principle is easy to realize, and the longitudinal positioning rigidity of wheel sets and bogie frames can be provided by filling oil and maintaining pressure in the elastic bags at the two sides to maintain a certain bearing capacity so as to ensure the safety of vehicles; the longitudinal displacement of the wheel set and the bogie frame can be adjusted by injecting oil and pressurizing the inside of the single-side rubber bag to expand the single-side rubber bag, so that the longitudinal positioning and the longitudinal displacement adjustment between the wheel set and the bogie frame are synchronously realized, and in addition, the elastic bag is in threaded connection with the mandrel through the metal support, so that the integral disassembly and replacement are convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention in connection with a truck frame;
FIG. 2 is a schematic view of a partial cutaway of an installation structure of an axle box body, an axle box rear end cover, a mandrel and a bladder type longitudinal positioning unit according to the present invention;
FIG. 3 is a schematic view in partial cross-section of a mandrel and elastomeric bladder assembly of the present invention;
FIG. 4 is a schematic view of the exterior of the axlebox of the present invention;
FIG. 5 is a schematic view of the structure of the auxiliary rubber spring;
in the figure: the bogie comprises a bogie frame 1, an axle box body 2, an axle box rear end cover 3, a displacement sensor 4, a displacement sensor mounting seat 5, a mounting boss 6, a mandrel 7, a rubber bag 8, a metal support 9, a hydraulic joint 10, an oil supply hole 11, a first mounting seat 12, an auxiliary rubber spring 13, a second mounting seat 14, a rotating arm node pressing plate 15 and a transverse positioning rubber pile 16.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 1-5, an active longitudinal positioning and driving device of an elastic bag built in an axle box is used for realizing longitudinal positioning and longitudinal displacement adjustment between a wheel pair and a bogie frame 1, the device comprises an axle box body 2, an axle box rear end cover 3 and a mandrel 7, the axle box body 2 and the axle box rear end cover 3 are mutually butted through an outer hexagon bolt to form an axle box with a cavity inside, a bag type longitudinal positioning unit is placed in the axle box cavity,
the bag type longitudinal positioning units are divided into two groups, the two groups are symmetrical about the axis of the mandrel 7, each group comprises a rubber bag 8 and a metal support 9, the rubber bags 8 and the metal supports 9 are vulcanized into an integral structure, the two metal supports 9 are respectively connected with threaded interfaces on two sides of the mandrel 7 through respective bottom threads of the two metal supports 9, the joint surfaces of the two metal supports and the mandrel 7 are sealed through a combined sealing gasket, and an oil supply hole 11 for installing a hydraulic connector 10 is machined in the end portion of the mandrel 7 so as to communicate the outside of the axle box with the inner cavity of the rubber bag 8.
The oil is filled and the pressure is maintained in the rubber bags 8 at the two sides of the mandrel 7, so that a certain bearing capacity is maintained, and the longitudinal positioning rigidity of the wheel pair and the bogie frame is further provided, so that the safety of a vehicle is ensured; the longitudinal displacement of the wheel set and the bogie frame is adjusted by injecting oil into the single-side rubber bag 8 of the mandrel 7 and pressurizing the oil to generate expansion action. In order to measure the longitudinal displacement between the wheel pair and the bogie frame 1, an external displacement sensor 4 is arranged between the bogie frame 1 and the axle box body 2, one end of the displacement sensor 4 is connected to the bogie frame 1 through a displacement sensor mounting seat 5, and the other end of the displacement sensor is connected to the axle box body 2 through a mounting boss 6.
An auxiliary rubber spring 13 for assisting to provide vertical rigidity is further arranged between the axle box body 2 and the bogie frame 1, the auxiliary rubber spring 13 is connected with a first mounting seat 12 located on the bogie frame 1 and a second mounting seat 14 located on the axle box body 2 through pin columns at two ends of the auxiliary rubber spring 13, in addition, a transverse positioning rubber pile 16 sleeved on the mandrel 7 is connected with a rotating arm node pressing plate 15, the rotating arm node pressing plate 15 exerts pretightening force on the auxiliary rubber spring 13 through the transverse positioning rubber pile 16, the transverse positioning rubber pile 16 has certain predeformation amount before assembly so as to adapt to vertical shearing deformation in the pretightening force application process, and therefore the inner iron piece and the outer iron piece of the transverse positioning rubber pile 16 keep a centering state after assembly is completed.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (7)
1. A longitudinal positioning and driving device with an active action of an elastic bag arranged in an axle box is used for realizing longitudinal positioning and longitudinal displacement adjustment between a wheel pair and a bogie frame (1), and comprises an axle box body (2) and an axle box rear end cover (3), and is characterized in that the axle box body (2) and the axle box rear end cover (3) are connected to form a complete axle box, a cavity is formed in the axle box and used for placing a bag type longitudinal positioning unit, a mandrel (7) is arranged between the axle box body (2) and the axle box rear end cover (3), and a transverse positioning rubber pile (16) is sleeved outside the mandrel (7);
the bag type longitudinal positioning unit comprises two groups of elastic bags, the two groups of elastic bags are respectively connected with the mandrel (7), the two groups of elastic bags are symmetrical to the axis of the mandrel (7), and the elastic bags on the two sides of the mandrel (7) are filled with oil and maintained in pressure to maintain a certain bearing capacity, so that the longitudinal positioning rigidity between the wheel pair and the bogie frame (1) is provided; the mandrel (7) is inflated by injecting oil and pressurizing into a single-side elastic bag to generate expansion action, so that the longitudinal displacement between the wheel pair and the bogie frame (1) is adjusted;
the elastic bag is specifically a rubber bag (8), the rubber bag (8) is connected to the mandrel (7) through a metal support (9), and the rubber bag and the metal support (9) are vulcanized into an integrated structure.
2. The active longitudinal positioning and driving device for elastic bag built in axle box according to claim 1, characterized in that the spindle (7) is provided with threaded ports on both sides for connecting metal brackets (9), the bottom of the metal brackets (9) is provided with threads matching with the ports, and a combined sealing gasket is installed between the spindle (7) and the metal brackets (9).
3. An active longitudinal positioning and driving device of elastic bag built in axle box according to claim 1 is characterized in that the end of the mandrel (7) is formed with oil supply hole (11) for installing hydraulic joint (10) to connect the outside of axle box and the inner cavity of rubber bag (8).
4. An axlebox-embedded active spring pocket longitudinal positioning and actuation device according to claim 1, characterized in that a displacement sensor (4) for measuring longitudinal displacement is connected between the outside of the axlebox body (2) and the bogie frame (1), one end of the displacement sensor (4) is connected to the bogie frame (1) by means of a displacement sensor (4) mounting, and the other end of the displacement sensor (4) is connected to the axlebox body (2) by means of a mounting boss (6).
5. The active-action longitudinal positioning and driving device of an internal axle box elastic bag according to claim 1, characterized in that the axle box body (2) and the axle box rear end cover (3) are butted with each other by an external hexagon bolt.
6. The active longitudinal positioning and driving device of elastic bag built in axle box according to claim 1, characterized in that an auxiliary rubber spring (13) for assisting to provide vertical rigidity is further disposed between the axle box body (2) and the bogie frame (1), the auxiliary rubber spring (13) is respectively connected to the first mounting seat (12) on the bogie frame (1) and the second mounting seat (14) on the axle box body (2) through pins at both ends, the transverse positioning rubber pile (16) is connected to a rotating arm node pressing plate (15), and the rotating arm node pressing plate (15) applies pre-tightening force to the auxiliary rubber spring (13) through the transverse positioning rubber pile (16).
7. An axlebox-embedded active-action longitudinal positioning and driving device according to claim 6, characterized in that said laterally positioned rubber piles (16) are embodied as pre-deformed rubber piles to adapt to vertical shear deformation during pre-stressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018430.1A CN111232007B (en) | 2020-01-08 | 2020-01-08 | Elastic bag active longitudinal positioning and driving device arranged in axle box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018430.1A CN111232007B (en) | 2020-01-08 | 2020-01-08 | Elastic bag active longitudinal positioning and driving device arranged in axle box |
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| Publication Number | Publication Date |
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| CN111232007A CN111232007A (en) | 2020-06-05 |
| CN111232007B true CN111232007B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010018430.1A Active CN111232007B (en) | 2020-01-08 | 2020-01-08 | Elastic bag active longitudinal positioning and driving device arranged in axle box |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114228768B (en) * | 2022-01-04 | 2024-02-27 | 西南交通大学 | Axle box bogie in rail vehicle |
Citations (7)
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| CN102407861A (en) * | 2011-10-14 | 2012-04-11 | 同济大学 | Mechanical semi-active radial guide device for railway vehicle bogie |
| DE102014003506A1 (en) * | 2014-03-14 | 2015-09-17 | Carl Freudenberg Kg | Hydraulic bushing assembly |
| CN105946889A (en) * | 2016-05-10 | 2016-09-21 | 同济大学 | Integrated wheel set positioning device used for radial bogie |
| CN106104072A (en) * | 2014-03-19 | 2016-11-09 | 康蒂泰克空气弹簧***有限公司 | Hydraulic pressure sleeve pipe |
| CN108150591A (en) * | 2016-12-02 | 2018-06-12 | 株洲时代新材料科技股份有限公司 | A kind of seal assembly and hydraulic bushing for hydraulic bushing |
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Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013224582A1 (en) * | 2013-11-29 | 2015-06-03 | Siemens Aktiengesellschaft | Suspension for a rail vehicle |
| CN207466679U (en) * | 2017-09-19 | 2018-06-08 | 江苏铁科新材料股份有限公司 | A kind of compound axle box resilient support of rubber liquid |
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2020
- 2020-01-08 CN CN202010018430.1A patent/CN111232007B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102407861A (en) * | 2011-10-14 | 2012-04-11 | 同济大学 | Mechanical semi-active radial guide device for railway vehicle bogie |
| DE102014003506A1 (en) * | 2014-03-14 | 2015-09-17 | Carl Freudenberg Kg | Hydraulic bushing assembly |
| CN106104072A (en) * | 2014-03-19 | 2016-11-09 | 康蒂泰克空气弹簧***有限公司 | Hydraulic pressure sleeve pipe |
| CN105946889A (en) * | 2016-05-10 | 2016-09-21 | 同济大学 | Integrated wheel set positioning device used for radial bogie |
| CN108150591A (en) * | 2016-12-02 | 2018-06-12 | 株洲时代新材料科技股份有限公司 | A kind of seal assembly and hydraulic bushing for hydraulic bushing |
| CN108343700A (en) * | 2017-01-23 | 2018-07-31 | 株洲时代新材料科技股份有限公司 | A kind of hydraulic bushing |
| CN109455191A (en) * | 2018-11-13 | 2019-03-12 | 中车长春轨道客车股份有限公司 | Variation rigidity pivoted arm node and with the pivoted arm node one be positioning device |
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| CN111232007A (en) | 2020-06-05 |
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