CN111114330A - Pantograph upper arm assembly - Google Patents
Pantograph upper arm assembly Download PDFInfo
- Publication number
- CN111114330A CN111114330A CN202010005219.6A CN202010005219A CN111114330A CN 111114330 A CN111114330 A CN 111114330A CN 202010005219 A CN202010005219 A CN 202010005219A CN 111114330 A CN111114330 A CN 111114330A
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- CN
- China
- Prior art keywords
- pantograph
- upper arm
- mounting seat
- connecting rod
- rotating shaft
- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
- B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
- B60L5/22—Supporting means for the contact bow
Abstract
The invention discloses a pantograph upper arm assembly, which comprises a pantograph upper arm, a balancing rod, a first connecting rod, a second connecting rod and a pantograph head rotating shaft, wherein the pantograph upper arm comprises an upper cross pipe, an upper housing, a lower housing, a longitudinal strut, a first rotating shaft mounting seat, a second rotating shaft mounting seat, a sealing cover and a mounting plate; the upper cross pipe is of a circular pipe structure and is divided into two sections which are symmetrically welded to the left side and the right side of the upper housing, and the lower housing and the upper housing are connected through a fastener to form a thin-wall sealed box body structure. The upper housing, the longitudinal support, the first connecting rod, the second connecting rod and the balance rod form a four-connecting-rod hinge mechanism at the upper part of the pantograph, and the first connecting rod, the second connecting rod, the balance rod, the bearing and the like are all arranged in the upper arm of the pantograph. The balance bar deformation or breakage failure rate caused by foreign object impact can be reduced, the windward resistance of the upper arm is reduced, and the aerodynamic characteristics of the upper arm part of the pantograph are improved.
Description
Technical Field
The invention relates to a pantograph for a rail transit vehicle, in particular to an upper arm assembly of the pantograph.
Background
The upper arm of the pantograph and the balance rod form a four-bar linkage mechanism at the upper half part of the pantograph, and the four-bar linkage mechanism is mainly used for maintaining the pantograph head to be always in a horizontal state at different heights.
The prior art is that the balance bar, the first connecting rod and the second connecting rod are externally arranged on the upper arm and exposed in the atmospheric environment, the external design of the balance bar increases the failure rate of deformation or fracture of the balance bar caused by foreign object impact, and secondly, when the design is applied to a high-speed pantograph at the speed of 300 kilometers per hour or more, the windward resistance of the pantograph is increased, and the aerodynamic characteristics of the pantograph are interfered.
Disclosure of Invention
The invention aims to provide a pantograph upper arm assembly.
The purpose of the invention is realized by the following technical scheme:
the upper arm component of the pantograph of the invention comprises an upper arm of the pantograph, a balancing rod, a first connecting rod, a second connecting rod and a pantograph head rotating shaft, wherein the upper arm of the pantograph comprises:
the device comprises an upper crossed pipe, an upper housing, a lower housing, a longitudinal support, a first rotating shaft mounting seat, a second rotating shaft mounting seat, a sealing cover and a mounting plate;
the upper cross pipe is of a circular pipe structure and is divided into two sections which are symmetrically welded to the left side and the right side of the upper cover shell, the lower cover shell and the upper cover shell are connected through fasteners to form a thin-wall sealing box body structure, the longitudinal support is welded with the upper cover shell, the first rotating shaft mounting seat and the second rotating shaft mounting seat are respectively welded with the longitudinal support, and the sealing cover is connected with the large end face of the longitudinal support.
According to the technical scheme provided by the invention, the pantograph upper arm assembly provided by the embodiment of the invention has the advantages that the pantograph head balancing rod is arranged in the upper arm through the design of the pantograph upper arm structure and the integral hinge structure thereof, the deformation or breakage failure rate of the balancing rod caused by foreign object impact is reduced, the windward resistance of the upper arm is reduced, and the aerodynamic characteristics of the pantograph upper arm component are improved.
Drawings
Fig. 1a and 1b are schematic front and side views of an upper arm and its articulated assembly according to an embodiment of the invention.
Fig. 2a, 2b, and 2c are front, side, and top projection views of an upper housing according to an embodiment of the invention.
Fig. 3a and 3b are schematic front and side views of a lower casing according to an embodiment of the present invention.
Fig. 4a and 4b are schematic front and side views of the longitudinal support and the mounting plate in the embodiment of the invention.
Fig. 5 is a schematic view of a pantograph four-bar linkage.
In the figure:
1. an upper cross pipe, 2, an upper housing, 3, a lower housing, 4, a longitudinal strut, 5, a first rotating shaft mounting seat, 6, a second rotating shaft mounting seat, 7, a sealing cover, 8, a mounting plate, 9, a bow head rotating shaft, 10, a first connecting rod, 11, a second connecting rod, 12, a balancing rod, 13, a long shaft, 14, a sliding shaft sleeve, 15, a bearing, 16, a spacer bush, 17, a lower arm side long shaft mounting seat, 18, an internal thread connecting seat, 19, an upper housing connecting seat, 20, a small end face, 21, a large end face, 22, a first through hole, 23, a second through hole, 24, an upper arm, 25 and a lower arm;
A. b, C, D are the four faces of the upper cover 2;
a. b, c, d, e are the five faces of the lower housing 3, respectively.
Detailed Description
The embodiments of the present invention will be described in further detail below. Details which are not described in detail in the embodiments of the invention belong to the prior art which is known to the person skilled in the art.
The upper arm assembly of the pantograph of the present invention has the preferred embodiments:
including pantograph upper arm, balancing pole, head rod, second connecting rod, bow head pivot, the pantograph upper arm includes:
the device comprises an upper crossed pipe, an upper housing, a lower housing, a longitudinal support, a first rotating shaft mounting seat, a second rotating shaft mounting seat, a sealing cover and a mounting plate;
the upper cross pipe is of a circular pipe structure and is divided into two sections which are symmetrically welded to the left side and the right side of the upper cover shell, the lower cover shell and the upper cover shell are connected through fasteners to form a thin-wall sealing box body structure, the longitudinal support is welded with the upper cover shell, the first rotating shaft mounting seat and the second rotating shaft mounting seat are respectively welded with the longitudinal support, and the sealing cover is connected with the large end face of the longitudinal support.
The upper cover shell is of a thin-wall half box body structure and comprises A, B, C, D four surfaces, wherein the surface A is an arc surface, the rest surfaces are planes, the surface C and the surface D are respectively provided with a circular through hole connected with an upper cross pipe, the surface B is provided with a long circular through hole connected with the small end surface of a longitudinal support, and the surface C and the surface D are respectively provided with two internal thread connecting seats.
The lower housing is of a thin-wall half-box structure and comprises five surfaces, namely a surface, b surface, c surface, d surface and e surface, the surfaces are planes, the surface e is a cambered surface, the surface c surface and the surface d are in transitional connection through the surface e, the surface a and the surface b are respectively provided with two upper housing connecting seats, the upper housing connecting seats are connected with the internal thread connecting seats in a one-to-one correspondence mode, and the upper housing connecting seats are through holes and penetrate through the surface c and the surface d.
The longitudinal support column is a thin-wall pipe with a variable cross section and an oblong shape and is provided with a first through hole and a second through hole, the first through hole and the second through hole are respectively connected with the first rotating shaft mounting seat and the second rotating shaft mounting seat, and the mounting plate is arranged on the inner side of the large end face of the longitudinal support column.
The first rotating shaft mounting seat is of a circular tube structure and is divided into two sections which symmetrically penetrate through the first through hole of the longitudinal support.
The second rotating shaft mounting seat is of an integrated circular tube structure and penetrates into the second through hole of the longitudinal support.
The sealing cover is oblong, the outer dimension of the sealing cover corresponds to the side mounting plate on the large end face of the longitudinal strut, and a plurality of counter bores for fixing bolts are circumferentially arranged.
The mounting plate is in an oblong shape, the middle of the mounting plate is provided with an oblong through hole, and the periphery of the mounting plate is provided with an internal thread hole corresponding to the sealing cover.
The upper housing, the longitudinal support, the first connecting rod, the second connecting rod and the balance rod form a four-connecting-rod hinge mechanism at the upper part of the pantograph.
The pantograph upper arm connecting structure comprises a pantograph upper arm, a pantograph upper arm connecting structure and a pantograph upper arm connecting structure, and is characterized by further comprising a long shaft, a sliding shaft sleeve, a bearing and a spacer bush, wherein the first connecting rod, the second connecting rod, the balancing rod and the bearing are all arranged in the pantograph upper arm, and the long shaft penetrates through the upper arm first rotating shaft mounting seat and the lower arm side long shaft mounting seat and is fixedly connected with the upper arm.
According to the upper arm assembly of the pantograph, the pantograph head balancing rod is arranged in the upper arm through the design of the upper arm structure of the pantograph and the integral hinge structure of the upper arm structure, the deformation or breakage failure rate of the balancing rod caused by foreign body impact is reduced, the windward resistance of the upper arm is reduced, and the aerodynamic characteristics of the upper arm part of the pantograph are improved.
The specific embodiment is as follows:
as shown in fig. 1a and 1b, the pantograph upper arm includes an upper cross pipe, an upper housing, a lower housing, a longitudinal support, a first rotating shaft mounting seat, a second rotating shaft mounting seat, a sealing cover, and a mounting plate, and is characterized in that the upper cross pipe is a circular pipe structure, and is divided into two sections that are symmetrically welded to the left and right sides of the upper housing, the lower housing and the upper housing are connected by a fastener to form a thin-wall sealed box structure, the longitudinal support is welded to the upper housing, the first rotating shaft mounting seat and the second rotating shaft mounting seat are respectively welded to the longitudinal support, and the sealing cover is connected to the large end face of the longitudinal support.
As shown in fig. 2a, 2b and 2C, the upper cover shell is a thin-wall half-box structure and is divided into A, B, C, D four surfaces, wherein a is an arc surface, the arrangement is to improve the upwind air flow field of the upper arm, the rest are planes, and the surfaces C and D are respectively provided with a circular through hole for connecting with an upper cross pipe; the surface B is provided with an oblong through hole for connecting with the small end surface of the longitudinal strut; C. two internal thread connecting seats are respectively arranged on the surface D and are used for being connected with the lower housing.
As shown in fig. 1a, fig. 1b, fig. 4a and fig. 4b, the longitudinal support is a thin-walled tube with a variable cross section, which can reduce the windward resistance of the upper arm and improve the aerodynamic characteristics of the pantograph, a first through hole and a second through hole are arranged on the longitudinal support, and are correspondingly connected with a first rotating shaft mounting seat and a second rotating shaft mounting seat, a mounting plate is arranged on the inner side of the large end surface and can be fixed to the inner wall of the longitudinal support on the side of the large end surface by a welding method, and the mounting plate is provided with an internal threaded hole; the first rotating shaft mounting seat is of a circular tube structure and is divided into two sections which are connected with the first through hole and welded to the longitudinal strut; the second rotating shaft mounting seat is of an integrated circular tube structure, and symmetrically penetrates through the second through hole to be welded with the longitudinal support.
As shown in fig. 3a and 3b, the lower casing is a thin-walled half-box structure and is divided into five surfaces a, b, c, d and e, wherein the surfaces a, b, c and d are planes, and the surfaces c and d are transitionally connected through an arc surface e; a. the surface b is respectively provided with two upper housing connecting seats which are respectively in one-to-one correspondence with the thread connecting seats in the inner surface of the upper housing A, B, each upper housing connecting seat is provided with a bolt mounting hole and penetrates through the two planes c and d, and in order to ensure the attractiveness, the bolt holes can adopt a counter bore mode.
As shown in fig. 4a and 4b, the sealing cover is oblong, the external dimension of the sealing cover is consistent with that of the mounting plate on the large end face side of the longitudinal strut, counter bores corresponding to the mounting plate are arranged on the periphery of the sealing cover, and the sealing cover is connected and fastened with the mounting plate through counter bolts;
the hinge mechanism comprises an upper housing, a longitudinal strut, a bow head rotating shaft, a first connecting rod, a second connecting rod, a balancing rod, a long shaft, a sliding shaft sleeve, a bearing and a spacer bush; the first connecting rod is hinged with the bow rotating shaft, one end of the balancing rod is hinged with the first connecting rod, and the other end of the balancing rod is hinged with the second connecting rod; the second connecting rod is hinged with the long shaft; the long shaft is fixedly connected with the lower arm; the second connecting rod is fixed on the long shaft and is connected with one end of the balancing rod;
as shown in fig. 5, the pantograph head rotating shaft, the first connecting rod, the second connecting rod, the balance rod and the bearing are all embedded in the upper arm of the pantograph to form a four-bar hinge mechanism at the upper part of the pantograph.
The upper arm and the hinge mechanism thereof are fixed on the lower arm long shaft mounting seat through a long shaft.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a pantograph upper arm subassembly, includes pantograph upper arm, balancing pole (12), head rod (10), second connecting rod (11), bow pivot (9), its characterized in that, the pantograph upper arm includes:
the device comprises an upper cross pipe (1), an upper housing (2), a lower housing (3), a longitudinal strut (4), a first rotating shaft mounting seat (5), a second rotating shaft mounting seat (6), a sealing cover (7) and a mounting plate (8);
the upper cross pipe (1) is of a circular pipe structure and is divided into two sections which are symmetrically welded to the left side and the right side of the upper housing (2), the lower housing (3) and the upper housing (2) are connected through a fastener to form a thin-wall sealing box body structure, the longitudinal support (4) is welded to the upper housing (2), the first rotating shaft mounting seat (5) and the second rotating shaft mounting seat (6) are respectively welded to the longitudinal support (4), and the sealing cover (7) is connected with the large end face of the longitudinal support (4).
2. Pantograph upper arm assembly according to claim 1, characterized in that the upper shell (2) is a thin-walled half-box structure comprising A, B, C, D four faces, the face A being a curved face and the rest being flat faces, the faces C and D each having a circular through hole for connection to the upper cross pipe (1), the face B having an oblong through hole for connection to the small end face of the longitudinal support (4), and the faces C and D each having two female connector holders (18).
3. The upper arm assembly of the pantograph according to claim 2, wherein the lower housing (3) is a thin-walled half-box structure and comprises five surfaces a, b, c, d and e, the surfaces a, b, c and d are flat surfaces, the surface e is an arc surface, the surfaces c and d are transitionally connected through the surface e, two upper housing connecting seats (19) are respectively arranged on the surfaces a and b, the upper housing connecting seats (19) are correspondingly connected with the female screw connecting seats (18), and the upper housing connecting seats (19) are through holes and penetrate through the surfaces c and d.
4. Pantograph upper arm assembly according to claim 3, characterized in that the longitudinal support (4) is a thin-walled tube with a variable cross-section, oblong shape, provided with a first through-hole and a second through-hole, which are connected with the first pivot mounting seat (5) and the second pivot mounting seat (6), respectively, and the inside of the large end face of the longitudinal support (4) is provided with a mounting plate (8).
5. Pantograph upper arm assembly according to claim 4, characterized in that the first swivel mounting (5) is a round tube structure divided into two sections symmetrically penetrating into the first through hole of the longitudinal strut (4).
6. Pantograph upper arm assembly according to claim 5, characterized in that the second shaft mount (6) is a one-piece round tube structure, penetrating into the longitudinal strut (4) second through hole.
7. Pantograph upper arm assembly according to claim 6, characterized in that the sealing cover (7) is oblong, with the outer dimensions corresponding to the mounting plate on the large end face side of the longitudinal support (4), and is provided with a plurality of counter bores for fixing bolts in the circumferential direction.
8. Pantograph upper arm assembly according to claim 7, characterized in that the mounting plate (8) is oblong with an oblong hole in the middle and an internally threaded hole in the periphery corresponding to the sealing cover (7).
9. Pantograph upper arm assembly according to one of claims 1-8, characterized in that the upper shell (2), the longitudinal strut (4), the first connecting rod (10), the second connecting rod (11) and the balancing rod (12) constitute a pantograph upper four-bar hinge mechanism.
10. The pantograph upper arm assembly according to claim 9, further comprising a long shaft (13), a sliding bushing (14), a bearing (15), and a spacer (16), wherein the first connecting rod (10), the second connecting rod (11), the balance rod (12), and the bearing (15) are all embedded in the pantograph upper arm, and the long shaft (13) penetrates through the upper arm first rotating shaft mounting seat (5) and the lower arm side long shaft mounting seat (17) and is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005219.6A CN111114330B (en) | 2020-01-03 | 2020-01-03 | Pantograph upper arm assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005219.6A CN111114330B (en) | 2020-01-03 | 2020-01-03 | Pantograph upper arm assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111114330A true CN111114330A (en) | 2020-05-08 |
| CN111114330B CN111114330B (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010005219.6A Active CN111114330B (en) | 2020-01-03 | 2020-01-03 | Pantograph upper arm assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111114330B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2435270Y (en) * | 2000-07-28 | 2001-06-20 | 崔德兴 | Air spring power pantograph |
| CA2629334A1 (en) * | 2007-01-23 | 2008-07-23 | Rongjun Tie | A constant strain spring compensation device |
| CN201124766Y (en) * | 2007-11-01 | 2008-10-01 | 株洲九方电器设备有限公司 | Bisaccate light rail and subway pantograph with air valve case |
| CN201530328U (en) * | 2009-09-16 | 2010-07-21 | 西南交通大学 | Low-resistance low-noise single-arm high-speed pantograph |
| CN202011330U (en) * | 2011-04-02 | 2011-10-19 | 吉林大学 | High-speed pantograph capable of reducing resistance and noises |
| US20140202817A1 (en) * | 2013-01-18 | 2014-07-24 | Tesmec S.P.A. | Ice breaking pantograph |
| EP2910399A1 (en) * | 2014-02-24 | 2015-08-26 | Faiveley Transport Tours | Railway vehicle pantograph |
| CN105383306A (en) * | 2015-12-08 | 2016-03-09 | 南车株洲电力机车有限公司 | Pantograph upper frame and pantograph structure |
| US9855848B2 (en) * | 2012-10-16 | 2018-01-02 | Siemens Aktiengesellschaft | Current collector for a rail-mounted vehicle |
| CN109501596A (en) * | 2019-01-02 | 2019-03-22 | 中车株洲电力机车有限公司 | A kind of miniaturization pantograph, rail vehicle and its examination and repair system |
-
2020
- 2020-01-03 CN CN202010005219.6A patent/CN111114330B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2435270Y (en) * | 2000-07-28 | 2001-06-20 | 崔德兴 | Air spring power pantograph |
| CA2629334A1 (en) * | 2007-01-23 | 2008-07-23 | Rongjun Tie | A constant strain spring compensation device |
| CN201124766Y (en) * | 2007-11-01 | 2008-10-01 | 株洲九方电器设备有限公司 | Bisaccate light rail and subway pantograph with air valve case |
| CN201530328U (en) * | 2009-09-16 | 2010-07-21 | 西南交通大学 | Low-resistance low-noise single-arm high-speed pantograph |
| CN202011330U (en) * | 2011-04-02 | 2011-10-19 | 吉林大学 | High-speed pantograph capable of reducing resistance and noises |
| US9855848B2 (en) * | 2012-10-16 | 2018-01-02 | Siemens Aktiengesellschaft | Current collector for a rail-mounted vehicle |
| US20140202817A1 (en) * | 2013-01-18 | 2014-07-24 | Tesmec S.P.A. | Ice breaking pantograph |
| EP2910399A1 (en) * | 2014-02-24 | 2015-08-26 | Faiveley Transport Tours | Railway vehicle pantograph |
| CN105383306A (en) * | 2015-12-08 | 2016-03-09 | 南车株洲电力机车有限公司 | Pantograph upper frame and pantograph structure |
| CN109501596A (en) * | 2019-01-02 | 2019-03-22 | 中车株洲电力机车有限公司 | A kind of miniaturization pantograph, rail vehicle and its examination and repair system |
Non-Patent Citations (1)
| Title |
|---|
| 宋冬利等: "V500受电弓静强度可靠性分析", 《失效分析与预防》 * |
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| CN111114330B (en) | 2021-07-23 |
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