CN108394283B - Novel umbrella-shaped vertically-lifting pantograph body - Google Patents
Novel umbrella-shaped vertically-lifting pantograph body Download PDFInfo
- Publication number
- CN108394283B CN108394283B CN201810166375.3A CN201810166375A CN108394283B CN 108394283 B CN108394283 B CN 108394283B CN 201810166375 A CN201810166375 A CN 201810166375A CN 108394283 B CN108394283 B CN 108394283B
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- arm
- lower arm
- fan
- sliding frame
- base
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- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
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- 230000003137 locomotive effect Effects 0.000 description 2
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- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
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Classifications
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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
-
- 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
-
- 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
- B60L5/28—Devices for lifting and resetting the collector
Abstract
The invention belongs to the technical field of mechanical devices and rail transit power transmission, and particularly relates to a novel umbrella-shaped vertically lifting pantograph body, which comprises a base, a lower arm, an upper arm, a middle sliding rack and a supporting arm, and a cylinder, wherein the pantograph body adopts an umbrella-shaped structure, so that the vertical lifting of a pantograph head can be ensured; the lower arm driving traction part adopts a structure that a transmission chain drives a fan-shaped supporting plate, so that the positive pressure of the bow head and the contact net is kept unchanged when the bow head is at any working height.
Description
Technical Field
The invention belongs to the technical field of mechanical devices and rail transit power transmission, and particularly relates to a novel umbrella-shaped vertically-lifting pantograph body.
Background
The pantograph is an electrical device that an electric traction locomotive obtains electric energy from a catenary, and is mounted on the top of a locomotive or a motor car. The pantograph can be divided into a single-arm pantograph and a double-arm pantograph, and the structure of the pantograph comprises a sliding plate, an upper frame, a lower arm rod (a lower frame for the double-arm pantograph), a bottom frame, a pantograph lifting spring, a transmission cylinder, a supporting insulator and other parts. Diamond pantographs, also known as diamond pantographs, have previously been very popular and have been eliminated due to the high maintenance costs and the tendency to break contact lines during failure.
In recent years, single-arm bows are mostly adopted, and single-arm bows are mostly in a four-bar structure. One disadvantage of the four-bar structure is that the pantograph cannot be lifted vertically in the process of lifting the pantograph, so that the head of the pantograph is inclined; the contact of the carbon slide plate and the contact net is directly affected by the inclination of the pantograph head, so that the phenomenon of uneven contact force is caused, once the contact force is insufficient, the phenomenon of off-net of the pantograph is extremely easy to cause, arcing or insufficient current-carrying capacity is formed, and when serious, the train is stopped when power is cut off; in addition, unbalanced load also causes uneven wear of the sliding plate, and the service life of the carbon sliding plate is seriously influenced.
Disclosure of Invention
The invention provides a novel umbrella-shaped vertically lifting pantograph body, which adopts an umbrella-shaped structure and can ensure that a pantograph head vertically lifts; the lower arm driving traction part adopts a structure that a transmission chain drives the fan-shaped supporting plates to be combined, so that the contact net pressure born by the bow head is the same when the bow head is at any working height.
The invention is realized by the following technical scheme:
a novel umbrella-shaped vertical lifting pantograph body, which comprises a base, a middle sliding frame arranged above the base in parallel, a lower arm and a supporting arm which are respectively hinged between two ends of the middle sliding frame and the base, and an upper arm hinged with the middle sliding frame,
the upper arm and the lower arm are mutually parallel, the top end of the upper arm and the bottom end of the lower arm are hinged to the same end of the middle sliding frame, and the upper arm and the lower arm are mutually axisymmetric relative to the middle sliding frame; the middle part of the middle sliding frame is fixedly provided with a horizontal guide shaft, the horizontal guide shaft is sleeved with a linear bearing, the middle part of the linear bearing and the upper and lower sides of the linear bearing are symmetrically provided with inclined pull arms, and two ends of the inclined pull arm on the upper side are respectively hinged with the linear bearing and the upper arm; two ends of the lower inclined pulling arm are respectively hinged with the linear bearing and the upper arm;
the bottom end of the lower arm is provided with a driving mechanism, and the driving mechanism drives the lower arm to rotate along the hinged joint of the bottom end of the lower arm and the base.
The bottom end of the lower arm is vertically connected with a first pin shaft, and two ends of the first pin shaft are respectively hinged with the bottom end.
The lower arm bottom fixedly connected with fan-shaped layer board, fan-shaped layer board one end fixedly connected with connecting plate, base one side is fixed with the cylinder, the loose end of cylinder passes through drive chain and connecting plate to be connected, and drive chain is leaned on with the circular arc periphery of fan-shaped layer board.
The upper arm, the lower arm and the middle sliding frame are hinged through a second pin shaft.
The beneficial effects of the invention are as follows:
the pantograph body adopts a parallelogram matched rhombic umbrella-shaped structure, has ingenious structure and outstanding effect, eliminates tolerance matching factors, and can theoretically ensure the absolute vertical lifting of the pantograph; the power aspect adopts cylinder collocation drive chain, because the pantograph rises in-process and rises many-sided factor influences such as bow angle and gravity, its atress is constantly changing, in order to guarantee in the pantograph working area, the positive pressure of bow head and contact net is invariable all the time, must provide a drive force of corresponding change, obtain after the data analysis and fit drive chain and fan-shaped layer board structure to become drive force curve, only need the cylinder to provide invariable pulling force, and then provide pressure to fan-shaped layer board through drive chain, thereby can output variable drive force and satisfy the arch head requirement.
Drawings
Fig. 1 is a schematic diagram of the front view structure of the present invention.
Fig. 2 is a schematic diagram of an umbrella structure.
Fig. 3 and 4 are schematic diagrams of the vertical lifting principle.
Fig. 5 is a schematic diagram of a connection structure of a transmission chain and a fan-shaped supporting plate.
In the figure: 1. the device comprises a base, a lower arm, an upper arm, a middle carriage, a supporting arm, a cylinder, a first pin roll, a connecting plate, a second pin roll, an ear seat, a linear bearing, a horizontal guide shaft, a diagonal arm, a third pin roll, a sector supporting plate and a transmission chain.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and preferred embodiments, so that those skilled in the art can better understand the technical solutions of the present invention.
As shown in the figure, the invention comprises a base 1, a middle carriage 4 arranged above the base in parallel, a lower arm 2 and a supporting arm 5 which are respectively hinged between two ends of the middle carriage and the base, and an upper arm 3 which is hinged with the middle carriage, wherein two ends of the supporting arm are respectively hinged with the middle carriage and the base through an ear seat 10.
The upper arm and the lower arm are mutually parallel, the top end of the upper arm and the bottom end of the lower arm are hinged to the same end of the middle sliding frame, and the upper arm and the lower arm are mutually axisymmetric relative to the middle sliding frame; the middle part of the middle sliding frame is fixedly provided with a horizontal guide shaft 12, the horizontal guide shaft is sleeved with a linear bearing, the middle part of the linear bearing and the upper and lower sides of the linear bearing are symmetrically provided with inclined pull arms 13, and the two ends of the inclined pull arm on the upper side are respectively hinged with the linear bearing and the upper arm; two ends of the lower inclined pulling arm are respectively hinged with the linear bearing 11 and the upper arm; the diagonal arm and the upper arm and the lower arm are respectively hinged through a third pin shaft 14.
The bottom end of the lower arm is provided with a driving mechanism, and the driving mechanism drives the lower arm to rotate along the hinged joint of the bottom end of the lower arm and the base.
Preferably, the bottom end of the lower arm is vertically connected with a first pin shaft 7, and two ends of the first pin shaft are respectively hinged with mounting holes correspondingly formed in the bottom end.
Preferably, the bottom of the lower arm is fixedly connected with a fan-shaped supporting plate 15, one end of the fan-shaped supporting plate is fixedly connected with a connecting plate 8, one side of the base is fixedly provided with a cylinder 6, the movable end of the cylinder is connected with the connecting plate through a transmission chain 16, and the transmission chain is attached to the periphery of the arc of the fan-shaped supporting plate.
Preferably, the upper arm, the lower arm and the middle carriage are hinged by a second pin 9.
The specific working principle is as follows:
as shown in fig. 3, each action node of the overall structure is: the lower arm is connected with the base in a hinged mode, the free end B of the upper arm is connected with the middle carriage through the hinge joint C of the support arm, the hinge joint D of the support arm and the base is connected with the hinge joint E of the linear bearing through the diagonal arm on the upper side and the lower side, the hinge joint F of the diagonal arm on the upper side and the upper arm is connected with the hinge joint G of the diagonal arm on the lower side and the lower arm, and the hinge joint O of the upper arm, the lower arm and the middle carriage.
The OA spacing is equal to the CD spacing; the OC spacing is equal to the AD spacing, and the OC spacing and the AD spacing form a parallelogram structure OADC together, namely the AD// OC is kept horizontal, so that the OC can be kept horizontal all the time.
The lower arm, the upper arm and the middle carriage are connected with the O point through pin shafts, the linear bearing assembly in the middle carriage can slide freely along the horizontal guide shaft, and the lower arm and the upper arm are connected with the linear bearing through inclined pull arms. Of=og, ef=eg, so that the lower arm, the upper arm and the intermediate carriage form a rhomboid structure, combined with the lower arm upper arm, a so-called umbrella structure.
One end of the air cylinder is fixedly connected with the base through a mounting hole. The other end is connected with the connecting plate, the cylinder provides power to pull the transmission chain, and the transmission chain drives to provide pressure to the fan-shaped supporting plate, and then pulls the lower arm to rotate around the rotation axis, and the bow rises.
In the process of raising the bow, the cylinder provides a pulling force to drive the OA to rotate clockwise along the point A, because OC is always kept horizontal, the interior of EG generates a pulling force to pull E to move along the direction of OC and close to the point O, and then the interior of EF generates a pressure to push OB to rotate anticlockwise along the point O, and because OA=OB, the point B always moves upwards on the straight line AB; and vice versa. As the umbrella is opened and closed, the umbrella edges in the symmetrical direction are always on the same straight line, so the bow body is named as an umbrella-shaped vertically lifting pantograph body.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (3)
1. A novel umbrella-shaped vertical lifting pantograph body is characterized by comprising a base, a middle sliding frame arranged above the base in parallel, a lower arm and a supporting arm respectively hinged between two ends of the middle sliding frame and the base, and an upper arm hinged with the middle sliding frame,
the upper arm and the lower arm are arranged in parallel, the top end of the upper arm and the bottom end of the lower arm are hinged to the same end of the middle sliding frame, and the upper arm and the lower arm are symmetrically arranged by taking the middle sliding frame as an axis; the middle part of the middle sliding frame is fixedly provided with a horizontal guide shaft, the horizontal guide shaft is sleeved with a linear bearing, the middle part of the linear bearing and the upper and lower sides of the linear bearing are symmetrically provided with inclined pull arms, and two ends of the inclined pull arm on the upper side are respectively hinged with the linear bearing and the upper arm; two ends of the lower inclined pulling arm are respectively hinged with the linear bearing and the upper arm;
the lower arm bottom is equipped with actuating mechanism, actuating mechanism drives the lower arm and rotates along the articulated junction of its bottom and base, lower arm bottom fixedly connected with fan-shaped layer board, fan-shaped layer board one end fixedly connected with connecting plate, base one side is fixed with the cylinder, the expansion end of cylinder is connected with the connecting plate through drive chain, and drive chain leans on with the circular arc periphery of fan-shaped layer board, actuating mechanism draws behind the variable driving force curve through data analysis and fits drive chain and fan-shaped layer board structure for make the cylinder provide invariable pulling force, and then provide pressure to fan-shaped layer board through drive chain.
2. The novel umbrella-shaped vertical lifting pantograph body according to claim 1, wherein the bottom end of the lower arm is vertically connected with a first pin shaft, and two ends of the first pin shaft are respectively hinged with the bottom end.
3. A novel umbrella-shaped vertical lifting pantograph body according to any one of claims 1-2 wherein the upper arm, lower arm and intermediate carriage are hingedly connected by a second pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166375.3A CN108394283B (en) | 2018-02-28 | 2018-02-28 | Novel umbrella-shaped vertically-lifting pantograph body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166375.3A CN108394283B (en) | 2018-02-28 | 2018-02-28 | Novel umbrella-shaped vertically-lifting pantograph body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108394283A CN108394283A (en) | 2018-08-14 |
| CN108394283B true CN108394283B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810166375.3A Active CN108394283B (en) | 2018-02-28 | 2018-02-28 | Novel umbrella-shaped vertically-lifting pantograph body |
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| Country | Link |
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| CN (1) | CN108394283B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014970A (en) * | 2018-08-21 | 2019-07-16 | 江苏万帮德和新能源科技股份有限公司 | Charge robot and charging method |
| CN110126625B (en) * | 2019-05-16 | 2021-08-31 | 大连交通大学 | Novel high-speed pantograph and lightweight dynamic design method thereof |
| CN112793426B (en) * | 2021-02-24 | 2022-09-02 | 华东交通大学 | Antifriction and wear-resistant pantograph suitable for bidirectional running |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259911A (en) * | 1997-06-13 | 2000-07-12 | 戴姆勒-克莱斯勒股份公司 | Device for measuring the contact force in a power collector |
| JP2000278803A (en) * | 1999-03-25 | 2000-10-06 | Kawasaki Heavy Ind Ltd | Pantagraph with cover |
| CN1486888A (en) * | 2003-08-12 | 2004-04-07 | 上海交通大学 | Double-wire powering trolleybus pantograph with damping spring barrel |
| FR2850330A1 (en) * | 2003-01-24 | 2004-07-30 | Jean Marc Loriot | High performance pantograph for high-speed electric train, uses two motorized servo-mechanisms to provide course and fine control of movement of pantograph |
| JP2008228396A (en) * | 2007-03-09 | 2008-09-25 | Railway Technical Res Inst | Pantograph |
| CN103561996A (en) * | 2011-04-22 | 2014-02-05 | 法国国营铁路公司 | Pantograph for a railway vehicle |
| CN208118958U (en) * | 2018-02-28 | 2018-11-20 | 天津益昌电气设备股份有限公司 | A kind of novel umbrella vertical lift pantograph bow body |
-
2018
- 2018-02-28 CN CN201810166375.3A patent/CN108394283B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259911A (en) * | 1997-06-13 | 2000-07-12 | 戴姆勒-克莱斯勒股份公司 | Device for measuring the contact force in a power collector |
| JP2000278803A (en) * | 1999-03-25 | 2000-10-06 | Kawasaki Heavy Ind Ltd | Pantagraph with cover |
| FR2850330A1 (en) * | 2003-01-24 | 2004-07-30 | Jean Marc Loriot | High performance pantograph for high-speed electric train, uses two motorized servo-mechanisms to provide course and fine control of movement of pantograph |
| CN1486888A (en) * | 2003-08-12 | 2004-04-07 | 上海交通大学 | Double-wire powering trolleybus pantograph with damping spring barrel |
| JP2008228396A (en) * | 2007-03-09 | 2008-09-25 | Railway Technical Res Inst | Pantograph |
| CN103561996A (en) * | 2011-04-22 | 2014-02-05 | 法国国营铁路公司 | Pantograph for a railway vehicle |
| CN208118958U (en) * | 2018-02-28 | 2018-11-20 | 天津益昌电气设备股份有限公司 | A kind of novel umbrella vertical lift pantograph bow body |
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| Publication number | Publication date |
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| CN108394283A (en) | 2018-08-14 |
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