CN109591839B - Primary suspension positioning device for bogie - Google Patents
Primary suspension positioning device for bogie Download PDFInfo
- Publication number
- CN109591839B CN109591839B CN201910074923.4A CN201910074923A CN109591839B CN 109591839 B CN109591839 B CN 109591839B CN 201910074923 A CN201910074923 A CN 201910074923A CN 109591839 B CN109591839 B CN 109591839B
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- Prior art keywords
- hole
- plate
- axle box
- blind hole
- interference fit
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Classifications
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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
- B61F5/36—Arrangements for equalising or adjusting the load on wheels or springs, e.g. yokes
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a primary suspension positioning device for a bogie, and belongs to the technical field of railway vehicle bogies. The axle box body is provided with a stepped blind hole I with a screw thread at the top at one side close to the framework inclined beam; the lower part of the framework oblique beam is provided with a lug with a bayonet, the upper part of the bayonet is provided with a stepped blind hole II, and the lower cantilever is provided with a through hole I; the rear end of the pulling plate seat is a horizontal circular arc through hole II, and the front end of the pulling plate seat is of a straight-edge flat plate structure; a locking sleeve is arranged in a central through hole of the rubber metal joint, the outer diameter of the upper part of the locking sleeve is in interference fit with the stepped blind hole of the cantilever at the upper part of the bayonet, and a long bolt penetrates through the locking sleeve to be fixed with the upper cantilever and the lower cantilever of the bayonet; the two ends of the pulling plate are respectively provided with a through hole IV, the lower end of the pulling plate is in interference fit with the through hole of the backing plate, the short bolt penetrates through the bearing sleeve to be fixed with the stepped blind hole I with threads at the top of the lower part of the horizontal support, and the short bolt penetrates through the bearing sleeve to be fixed with the stepped blind hole III at the front end of the pulling plate seat.
Description
Technical Field
The invention belongs to the technical field of railway vehicle bogies.
Background
In rail vehicles, the primary suspension is a suspension arrangement between the axleboxes and the bogies, transmitting the forces in the vertical, lateral and longitudinal directions to each other. The vertical rigidity of the primary suspension is mainly used for damping vibration and impact caused by vertical irregularity of a rail, the longitudinal rigidity and the transverse rigidity are used for positioning an axle box, traction performance, linear running stability and curve passing performance of a vehicle are affected, and matching of parameters of the primary suspension is directly related to running performance of the rail vehicle. The design requirement of the primary suspension structure realizes reasonable matching of longitudinal and transverse rigidity parameters in a limited space, and simultaneously ensures proper vertical static deflection so as to ensure that the bogie has excellent dynamic performance.
The primary suspension positioning mode adopted by modern vehicles at present mainly comprises a rotary arm type, a single pull rod type, a V-shaped laminated rubber spring type, a pull plate type and the like.
The rotary arm type primary suspension mainly comprises a rotary arm axle box, a rubber joint and a top-mounted round spring; the overhead spring provides a series of vertical rigidity, and the longitudinal rigidity and the transverse rigidity are provided by rubber joints of the rotary arm joints; the main disadvantage of this suspension structure is: the structure of the side beam of the framework and the axle box is complex, the unsprung mass is larger, and the static deflection of the overhead spring is smaller.
The single-pull rod primary suspension mainly comprises an axle box, a round spring and pull rods with rubber joints arranged at two ends; a series of springs provide both vertical and lateral stiffness, and the longitudinal stiffness is provided by rubber joints; the main disadvantage of this suspension structure is: the coupling of the lateral and vertical stiffness of the springs is difficult to achieve at the same time optimal design goals, and is typically used in vehicles requiring a small series of static deflections.
The V-shaped laminated rubber spring type primary suspension consists of two groups of V-shaped laminated rubber springs, and the two groups of springs are arranged on two sides of the axle box in an inverted V shape to provide the longitudinal, transverse and vertical rigidity of the axle box; the main disadvantage of this suspension structure is: because of the coupling of the spring parameters in each direction of the laminated rubber spring, accurate matching of the three-way spring parameters of the primary system is difficult to achieve, and further, aging and creep of the rubber are undesirable.
At present, three types of pullboards are hung: standard Ming 'S formula [ I ], S-shaped Ming' S formula [ II ] and IS formula [ III ], all adopt double pulling plates to locate axle boxes. I-shaped suspension, wherein two pull plates are respectively arranged at two sides of an axle box, two ends of each pull plate are respectively and rigidly fixed on the axle box and a side beam of a framework by bolts, and two groups of round springs are arranged at two sides of the axle box; II-type suspension, wherein two pull plates are arranged on one side of the axle box, two ends of each pull plate are respectively fixed on the axle box and a side beam of the framework by bolts, and a single group of round springs are arranged on the axle box in a propping mode; the III type suspension is an improved I type suspension, and rubber elements are connected to the connecting ends of the pull plates and the framework to improve the stress state of the pull plates, and other structures are the same as the I type suspension. The longitudinal and transverse positioning rigidity of the I-type axle box and the II-type axle box are provided by the longitudinal and transverse rigidity of the pulling plate; the longitudinal and transverse positioning rigidity of the mounting end of the III-type shaft box is mainly provided by the rigidity of the rubber joint. The main disadvantages of Mingdon type suspensions are: the pulling plate needs to occupy larger longitudinal space, the I-type and II-type pulling plates need to meet the longitudinal and transverse rigidity parameters of the primary suspension at the same time, the stability and the strength of the pulling plate need to be considered, and the design difficulty is higher.
Disclosure of Invention
The invention aims to provide a primary suspension positioning device for a bogie, which can effectively solve the technical problem of decoupling of the unidirectional rigidity of primary suspension.
The aim of the invention is realized by the following technical scheme: a primary suspension positioning device of a bogie comprises a framework, a round spring group and axle box bodies, wherein the axle box bodies are arranged below horizontal arms at two ends of a longitudinal beam of the framework, the round spring group is symmetrically arranged at two sides of the axle box bodies, the upper ends of the round spring group are fixed with spring positioning seats at the bottom surfaces of the horizontal arms, and the lower ends of the round spring group are fixed with spring positioning seats on horizontal supports at two sides of the axle box bodies; the lower part of the horizontal support of one side of the axle box body, which is close to the framework inclined beam, is provided with a stepped blind hole I with threads at the top; the lower part of the inclined beam, which is close to one side of the axle box body, of the framework is provided with protruding double ears, one side, facing the axle box body, of the fork of each double ear is provided with a coaxial through hole I, and a pulling plate seat is arranged between the fork of each double ear; the rear end of the pulling plate seat is of a cylinder structure which is horizontally arranged, a through hole II which is coaxial with the cylinder structure is formed, the front end of the pulling plate seat is of a straight-side flat plate structure, and a blind hole II with threads is formed in right angles at two sides of the bottom surface; a rubber metal joint is arranged in the second through hole, a locking sleeve is arranged in the central through hole of the rubber metal joint mandrel, and a long bolt penetrates through the locking sleeve and is fixed with the double lugs through nuts; the two ends of the pulling plate are provided with a through hole III, and the middle part of the bearing sleeve is positioned in the through hole III; the upper surface of one end of the pull plate is contacted with the lower surface of the horizontal support, the lower surface of the pull plate is contacted with the upper surface of the backing plate, the short bolt penetrates through the bearing sleeve to be fixed with the first stepped blind hole with threads at the top of the lower part of the horizontal support, the upper surface of the other end of the pull plate is contacted with the lower surface of the front end of the pull plate seat, the lower surface of the pull plate is contacted with the upper surface of the backing plate, and the short bolt penetrates through the bearing sleeve to be fixed with the second stepped blind hole at the front end of the pull plate seat.
The inner diameter of the central through hole of the rubber metal joint mandrel is in interference fit with the outer diameter of the locking sleeve, the outer diameter of the upper part of the locking sleeve is in interference fit with the inner side of the first through hole on the double-lug left-side lug plate, and the outer diameter of the lower part of the locking sleeve is in interference fit with the first through hole on the double-lug right-side lug plate.
The lower part of the locking sleeve is provided with a step matched with the lower end face of the rubber metal joint mandrel.
The inner diameter of the third through hole is in interference fit with the outer diameter of the bearing sleeve, the upper end of the bearing sleeve is in interference fit with the first stepped blind hole, and the lower end of the bearing sleeve is in interference fit with the through hole of the base plate.
The pulling plate is of a rectangular flat plate structure, the plate thickness at two ends is larger than that of the waist, and two through holes III are formed in each end.
The upper end face of the rubber metal joint mandrel is tightly matched with the inner side surface of the double lugs.
Compared with the prior art, the invention has the advantages and effects that:
the invention combines the advantages of one-system suspension of rotary arm type, single pull rod type and Mingding pull plate type positioning, overcomes the defects of the existing suspension structure, and provides a one-system suspension mode of single-side single pull plate positioning of an axle box. The pull plate positioning has push-pull bearing function, can realize the unidirectional rigidity decoupling of a primary suspension, is easy to realize the elastic parameter requirement of the dynamic performance of the vehicle, has simple and compact structure and light weight, and is convenient for the bogie to fall down and fall down.
Drawings
Fig. 1 is a front cross-sectional view of the present invention.
Fig. 2 is an enlarged sectional view of section a of the present invention.
Fig. 3 is an enlarged section B of the present invention.
Fig. 4 is an enlarged bottom view of the C section of the present invention.
FIG. 5 is a cross-sectional view of a rubber metal joint according to the present invention.
Fig. 6 is a three-dimensional schematic view of a vertically arranged pulling plate seat according to the present invention.
FIG. 7 is a three-dimensional schematic view of a pulling plate structure according to the present invention.
FIG. 8 is a partial view of a side horizontal support of the axle housing of the present invention adjacent to the frame.
Figure 9 is a partial view of the lug of the present invention.
Description of the embodiments
The invention is further described below with reference to the accompanying drawings:
the primary suspension positioning device of the bogie comprises a framework 4, a round spring group 1 and an axle box body 3, wherein the axle box body 3 is arranged below horizontal arms at two ends of a longitudinal beam of the framework 4, the round spring group 1 is symmetrically arranged at two sides of the axle box body 3, the upper end of the round spring group 1 is fixed with a spring positioning seat 2 at the bottom surface of the horizontal arm, the lower end of the round spring group is fixed with spring positioning seats on horizontal supports at two sides of the axle box body 3, and a stepped blind hole I16 with threads at the top is arranged at the lower part of the horizontal support of the axle box body (3) close to one side of an oblique beam of the framework 4; the lower part of the inclined beam, which is close to one side of the axle box body 3, of the framework 4 is provided with a protruding double ear 5, a first through hole 17 which is coaxial is arranged at the side, facing the axle box body 3, of the fork of the double ear 5, and a pulling plate seat 9 is arranged between the fork of the double ear 5; the rear end of the pulling plate seat 9 is of a horizontally arranged cylinder structure and is provided with a through hole II 14 coaxial with the cylinder structure, the front end of the pulling plate seat is of a straight-side flat plate structure, and right angles on two sides of the bottom surface are provided with a blind hole II 15 with threads; a rubber metal joint 8 is arranged in the second through hole 14, a locking sleeve 6 is arranged in a central through hole of a mandrel of the rubber metal joint 8, and a long bolt 7 passes through the locking sleeve 6 and is fixed with the double ears 5 through nuts; the two ends of the pulling plate 10 are provided with a through hole III 18, and the middle part of the bearing sleeve 13 is positioned in the through hole III 18; the upper surface of one end of the pull plate 10 is contacted with the lower surface of the horizontal support, the lower surface of the pull plate 10 is contacted with the upper surface of the backing plate 11, the short bolt 12 passes through the bearing sleeve 13 and is fixed with the first stepped blind hole 16 with threads at the top of the lower part of the horizontal support, the upper surface of the other end of the pull plate 10 is contacted with the lower surface of the front end of the pull plate seat 9, the lower surface of the pull plate 10 is contacted with the upper surface of the backing plate 11, and the short bolt 12 passes through the bearing sleeve 13 and is fixed with the second stepped blind hole 15 at the front end of the pull plate seat 9.
The inner diameter of the central through hole of the core shaft of the rubber metal joint 8 is in interference fit with the outer diameter of the locking sleeve 6, the outer diameter of the upper part of the locking sleeve 6 is in interference fit with the first through hole 17 on the left ear plate of the double ears 5, and the outer diameter of the lower part of the locking sleeve 6 is in interference fit with the first through hole 17 on the right ear plate of the double ears 5.
The lower part of the locking sleeve 6 is provided with a step matched with the lower end face of the mandrel of the rubber metal joint 8.
The inner diameter of the third through hole 18 is in interference fit with the outer diameter of the bearing sleeve 13, the upper end of the bearing sleeve 13 is in interference fit with the first stepped blind hole 16, and the lower end of the bearing sleeve is in interference fit with the through hole of the backing plate 11.
The pull plate 10 is of a rectangular flat plate structure, the plate thickness of two ends is larger than that of the waist, and two through holes III 18 are formed in each end.
The upper end face of the mandrel of the rubber metal joint 8 is tightly matched with the inner side surface of the double lugs 5.
The invention combines the advantages of one-system suspension of rotary arm type, single pull rod type and Mingding pull plate type positioning, overcomes the defects of the existing suspension structure, and provides a one-system suspension mode of single-side single pull plate positioning of an axle box. The pull plate positioning has push-pull bearing function, can realize the unidirectional rigidity decoupling of a primary suspension, is easy to realize the elastic parameter requirement of the dynamic performance of the vehicle, has simple and compact structure and light weight, and is convenient for the bogie to fall down and fall down.
Claims (4)
1. The utility model provides a bogie primary suspension positioner, can decouple primary suspension's multidirectional rigidity, includes framework (4), spring group (1) and axle box (3), and framework (4) longeron both ends horizontal arm below is equipped with axle box (3), and axle box (3) bilateral symmetry sets up spring group (1), the upper end of spring group (1) with spring positioning seat (2) of horizontal arm bottom surface are fixed, and the lower extreme is fixed with spring positioning seat on axle box (3) both sides horizontal support, its characterized in that: the lower part of the horizontal support of the axle box body (3) close to one side of the inclined beam of the framework (4) is provided with a stepped blind hole I (16) with a screw thread at the top; the lower part of the inclined beam, which is close to one side of the axle box body (3), of the framework (4) is provided with protruding double ears (5), one side, which faces the axle box body (3), of the fork of the double ears (5) is provided with a coaxial through hole I (17), and a pulling plate seat (9) is arranged between the fork of the double ears (5); the rear end of the pulling plate seat (9) is of a horizontally arranged cylinder structure and is provided with a through hole II (14) coaxial with the cylinder structure, the front end of the pulling plate seat is of a straight-side flat plate structure, and right angles at two sides of the bottom surface are provided with a blind hole II (15) with threads; a rubber metal joint (8) is arranged in the through hole II (14), a locking sleeve (6) is arranged in a central through hole of a mandrel of the rubber metal joint (8), a step matched with the lower end face of the mandrel of the rubber metal joint (8) is arranged at the lower part of the locking sleeve (6), the upper end face of the mandrel of the rubber metal joint (8) is tightly matched with the inner side surface of the double lug (5), and a long bolt (7) penetrates through the locking sleeve (6) and is fixed with the double lug (5) through a nut; through holes III (18) are formed in two ends of the pull plate (10), the pull plate (10) is positioned to have a push-pull bearing function, the unidirectional rigidity decoupling of primary suspension and the elastic parameter requirement of vehicle dynamic performance are realized, and the bogie is convenient to drop and wheel; the middle part of the bearing sleeve (13) is positioned in the through hole III (18); the upper surface of one end of the pull plate (10) is contacted with the lower surface of the horizontal support, the lower surface of the pull plate (10) is contacted with the upper surface of the backing plate (11), the short bolt (12) passes through the bearing sleeve (13) to be fixed with the first stepped blind hole (16) with threads at the top of the lower part of the horizontal support, the upper surface of the other end of the pull plate (10) is contacted with the lower surface of the front end of the pull plate seat (9), the lower surface of the pull plate (10) is contacted with the upper surface of the backing plate (11), and the short bolt (12) passes through the bearing sleeve (13) to be fixed with the second stepped blind hole (15) of the front end of the pull plate seat (9).
2. A bogie primary suspension positioning device according to claim 1, wherein: the inner diameter of the central through hole of the rubber metal joint (8) mandrel is in interference fit with the outer diameter of the locking sleeve (6), the outer diameter of the upper part of the locking sleeve (6) is in interference fit with the first through hole (17) on the left ear plate of the double ear (5), and the outer diameter of the lower part of the locking sleeve (6) is in interference fit with the first through hole (17) on the right ear plate of the double ear (5).
3. A bogie primary suspension positioning device according to claim 1, wherein: the inner diameter of the third through hole (18) is in interference fit with the outer diameter of the bearing sleeve (13), the upper end of the bearing sleeve (13) is in interference fit with the first stepped blind hole (16), and the lower end of the bearing sleeve is in interference fit with the through hole of the backing plate (11).
4. A bogie primary suspension positioning device according to claim 1, wherein: the pulling plate (10) is of a rectangular flat plate structure, the plate thickness of two ends is larger than that of the waist, and each end is provided with two through holes III (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074923.4A CN109591839B (en) | 2019-01-25 | 2019-01-25 | Primary suspension positioning device for bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910074923.4A CN109591839B (en) | 2019-01-25 | 2019-01-25 | Primary suspension positioning device for bogie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109591839A CN109591839A (en) | 2019-04-09 |
| CN109591839B true CN109591839B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910074923.4A Active CN109591839B (en) | 2019-01-25 | 2019-01-25 | Primary suspension positioning device for bogie |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588698B (en) * | 2019-09-23 | 2020-11-17 | 中车南京浦镇车辆有限公司 | Connecting structure of framework and primary elastic device of bogie |
| FR3114292A1 (en) * | 2020-09-23 | 2022-03-25 | Alstom Transport Technologies | Railway vehicle bogie, vehicle and axle installation method thereof |
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| CN109591839A (en) | 2019-04-09 |
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