CN115782598B - Novel pantograph head leaf spring suspension device - Google Patents
Novel pantograph head leaf spring suspension device Download PDFInfo
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- CN115782598B CN115782598B CN202211439702.0A CN202211439702A CN115782598B CN 115782598 B CN115782598 B CN 115782598B CN 202211439702 A CN202211439702 A CN 202211439702A CN 115782598 B CN115782598 B CN 115782598B
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- connecting rod
- box body
- lower connecting
- plate spring
- fixed end
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- 239000000725 suspension Substances 0.000 title claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 24
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 24
- 241001125292 Balaena mysticetus Species 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention discloses a novel pantograph head plate spring hanging device which comprises a box body, wherein a first carbon slide plate aluminum bracket fixed end connecting seat and a second carbon slide plate aluminum bracket fixed end connecting seat are symmetrically arranged on two sides of the outer part of the box body; the fixed end connecting seat of the first carbon slide plate aluminum bracket is connected with the box body through a first lower connecting rod, the middle part of the first lower connecting rod is connected to a boss arranged on one side of the box body, and two ends of the first lower connecting rod can rotate; the fixed end connecting seat of the second carbon slide plate aluminum bracket is connected with the box body through a second lower connecting rod, and the middle part of the second lower connecting rod is connected to a sliding block arranged in a sliding groove on the side wall of the box body; the center of the bottom surface inside the box body is provided with a plate spring; the upper ends of the first lower connecting rod and the second lower connecting rod are connected with a carbon slide plate aluminum bracket fixed end connecting seat the lower end is connected with a plate spring; the center of the lower surface of the plate spring is stuck with a pressure strain gauge for measuring the deformation of the plate spring, the deformation reflects the current-carrying condition of the bow head, and the performance parameters of the deformation of the plate spring of the pantograph can be rapidly obtained.
Description
Technical Field
The invention relates to the technical field of current-carrying vehicle power supply systems of pantographs, in particular to a novel pantograph head plate spring suspension device.
Background
In a high-speed electrified railway, a pantograph mounted on the roof of a train and a contact net erected beside a track line realize electric energy transmission through sliding contact, and the stress environment of the head of the pantograph and the dynamic contact force between the contact net and the pantograph reflect the current receiving quality of a pantograph net system. In order to accurately evaluate the matching relation of design parameters of the bow net system, grasp the evolution rule of the current receiving quality in the service process of the high-speed train and sensitively sense the parameter degeneration and defect state of the pantograph contact net system, the stress state of the bow net system needs to be accurately monitored in an on-line monitoring mode.
The current common method is that a force sensor is additionally arranged between a pantograph slide plate and a supporting device to detect the stress state of a pantograph head, then based on the space force system balance principle of the pantograph head, the interaction force between the pantograph head and a bracket is measured and then inertial correction is carried out to obtain the contact force of a pantograph net, including the key technology of detecting the contact force of the pantograph net in the literature of railway technology innovation; "Bow net dynamic contact force measurement method research" by railway technical supervision. However, the method adopts electric sensors, is easy to be interfered by electromagnetic interference, and has limited measurement precision under the condition of high-speed operation; meanwhile, the problems of data transmission, electromagnetic shielding and the like between the high-voltage side signal acquisition unit and the low-voltage side signal processing unit need to be considered, and an experimental device is complex.
The sensor of the common technology is large in size, a force sensor and a corresponding tool are additionally arranged between the pantograph slide plate and the elastic device, the distance between the pantograph slide plate and the elastic support is increased, the structure and parameters of the head part of the pantograph are affected, the original mechanical transfer relationship from top to bottom is changed, the dynamics of the pantograph and a contact net system are affected, and the mechanical environment of the head of the pantograph cannot be represented and described truly.
Disclosure of Invention
Aiming at the problems, the invention provides a novel pantograph head plate spring hanging device, which solves the problem that the stress state of a pantograph head is difficult to accurately monitor in the prior art.
The invention adopts the following technical scheme:
The novel pantograph head plate spring hanging device comprises a box body, wherein a first carbon slide plate aluminum bracket fixed end connecting seat and a second carbon slide plate aluminum bracket fixed end connecting seat are symmetrically arranged on two sides of the outer part of the box body; the fixed end connecting seat of the first carbon slide plate aluminum bracket is connected with the box body through a first lower connecting rod, the middle part of the first lower connecting rod is connected to a boss arranged on one side of the box body, and two ends of the first lower connecting rod can rotate; the fixed end connecting seat of the second carbon slide plate aluminum bracket is connected with the box body through a second lower connecting rod, the middle part of the second lower connecting rod is connected to a sliding block arranged in a sliding groove on the side wall of the box body, and the sliding block can slide in the horizontal direction; the center of the bottom surface inside the box body is provided with a plate spring; the upper ends of the first lower connecting rod and the second lower connecting rod are connected with a carbon slide plate aluminum bracket fixed end connecting seat the lower end is connected with a plate spring; the center of the lower surface of the plate spring is stuck with a pressure strain gauge for measuring the deformation of the plate spring, and the deformation of the plate spring indirectly reflects the current receiving condition of the bow head.
Further, the lower end of the second lower connecting rod is hinged with the lower end of the first lower connecting rod.
Further, the middle part of the first lower connecting rod is connected with the box body through a bolt.
Further, the middle part of the second lower connecting rod is connected with the sliding block through a bolt.
Further, the bottom surface inside the box body is connected with the plate spring through bolts.
The beneficial effects of the invention are as follows:
1. Through setting up the pressure strain gauge, can acquire the performance parameter of pantograph leaf spring deformation fast, can also combine acceleration deduction to obtain dynamic contact force. Real-time sensing of working states of the pantograph and the catenary is realized, so that the service performance of the pantograph-catenary system is evaluated.
2. The pressure strain gauge is arranged on the surface of the lower side of the plate spring, so that the anti-interference performance is good, the measuring error caused by the environment is small, and the application range is wide.
3. The equipment is simple to install, small in size and light in weight, and the integrated performance of the equipment and the hanging device is strong after the equipment is installed, so that the influence on the structure and parameters of the pantograph is small.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present invention and are not limiting of the present invention.
FIG. 1 is a front view of the present invention;
FIG. 2 is a right side view of the present invention;
FIG. 3 is a left side view of the present invention;
Fig. 4 is a top view of the present invention.
In the figure: 1-a fixed end connecting seat of a first carbon slide aluminum bracket; 2-a first lower link; 3-leaf springs; 4-a slider; 5-a second lower link; 6, a box body; 7-a second carbon slide aluminum bracket fixed end connecting seat; 8-a pressure strain gauge; 9-boss.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the terms "comprising" or "includes" and the like in this disclosure is intended to cover an element or article listed after that term and equivalents thereof without precluding other elements or articles. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The invention will be further described with reference to the drawings and examples.
As shown in fig. 1 to 4, a novel pantograph head leaf spring suspension device comprises a box body 6, wherein a first carbon slide plate aluminum bracket fixed end connecting seat 1 and a second carbon slide plate aluminum bracket fixed end connecting seat 7 are symmetrically arranged on two sides outside the box body 6; the first carbon slide aluminum bracket fixed end connecting seat 1 is connected with the box body 6 through a first lower connecting rod 2, the middle part of the first lower connecting rod 2 is connected to a boss 9 arranged on one side of the box body 6, and two ends of the first lower connecting rod 2 can rotate; the fixed end connecting seat 7 of the second carbon slide plate aluminum bracket is connected with the box body 6 through a second lower connecting rod 5, the middle part of the second lower connecting rod 5 is connected to a sliding block 4 arranged in a sliding groove on the side wall of the box body 6, and the sliding block can slide in the horizontal direction; the center of the bottom surface inside the box body 6 is provided with a plate spring 3; the upper ends of the first lower connecting rod 2 and the second lower connecting rod 5 are connected with a fixed end connecting seat of the carbon slide plate aluminum bracket, and the lower ends of the first lower connecting rod and the second lower connecting rod are connected with a plate spring 3; the center of the lower surface of the plate spring 3 is stuck with a pressure strain gauge 8 for measuring the deformation of the plate spring 3, the deformation of the plate spring 3 indirectly reflects the current-carrying condition of the bow head, the performance parameters of the deformation of the pantograph plate spring can be rapidly obtained, and the dynamic contact force can be obtained by combining acceleration deduction. Real-time sensing of working states of the pantograph and the catenary is realized, so that the service performance of the pantograph-catenary system is evaluated.
The lower end of the second lower connecting rod 5 is hinged with the lower end of the first lower connecting rod 2.
The middle part of the first lower connecting rod 2 is connected with the box body 6 through a bolt.
The middle part of the second lower connecting rod 5 is connected with the sliding block 4 through a bolt.
The inner bottom surface of the box body 6 is connected with the plate spring 3 through bolts.
Working principle:
when the pantograph is pressed, through the transmission pressure, extrude linkage to first carbon slide aluminium bracket stiff end connecting seat 1 and second carbon slide aluminium bracket stiff end connecting seat 7 direction, make the tip of first connecting rod 2 and second connecting rod 5 upwards move, and drive the upper portion of leaf spring 3 upwards move, leaf spring 3 drives pressure strain gauge 8 perception deformation under the pulling force effect, pressure strain gauge 8 passes through signal transmission with the deformation volume of monitoring and gives outside data collection device, under the stress strain in the outside data collection device handles, realize jointly that mechanical properties parameter and dynamic contact force to the pantograph head carry out real-time supervision.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.
Claims (5)
1. The novel pantograph head plate spring hanging device is characterized by comprising a box body (6), wherein a first carbon slide plate aluminum bracket fixed end connecting seat (1) and a second carbon slide plate aluminum bracket fixed end connecting seat (7) are symmetrically arranged on two sides outside the box body (6); the first carbon slide aluminum bracket fixed end connecting seat (1) is connected with the box body (6) through a first lower connecting rod (2), the middle part of the first lower connecting rod (2) is connected to a boss (9) arranged on one side of the box body (6), and two ends of the first lower connecting rod (2) can rotate; the fixed end connecting seat (7) of the second carbon slide plate aluminum bracket is connected with the box body (6) through a second lower connecting rod (5), the middle part of the second lower connecting rod (5) is connected to a sliding block (4) arranged in a sliding groove on the side wall of the box body (6), and the sliding block can slide in the horizontal direction; the center of the bottom surface of the inside of the box body (6) is provided with a plate spring (3); the upper ends of the first lower connecting rod (2) and the second lower connecting rod (5) are connected with a fixed end connecting seat of the carbon slide plate aluminum bracket, and the lower ends of the first lower connecting rod and the second lower connecting rod are connected with a plate spring (3); the center of the lower surface of the plate spring (3) is stuck with a pressure strain gauge (8).
2. The novel pantograph head plate spring suspension device according to claim 1, wherein the lower end of the second lower connecting rod (5) is hinged with the lower end of the first lower connecting rod (2).
3. The novel pantograph head plate spring suspension device according to claim 1, wherein the middle part of the first lower connecting rod (2) is connected with the box body (6) through a bolt.
4. The novel pantograph head plate spring suspension device according to claim 1, wherein the middle part of the second lower connecting rod (5) is connected with the sliding block (4) through a bolt.
5. The novel pantograph head plate spring suspension device according to claim 1, wherein the inner bottom surface of the box body (6) is connected with the plate spring (3) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211439702.0A CN115782598B (en) | 2022-11-17 | 2022-11-17 | Novel pantograph head leaf spring suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211439702.0A CN115782598B (en) | 2022-11-17 | 2022-11-17 | Novel pantograph head leaf spring suspension device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115782598A CN115782598A (en) | 2023-03-14 |
| CN115782598B true CN115782598B (en) | 2024-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211439702.0A Active CN115782598B (en) | 2022-11-17 | 2022-11-17 | Novel pantograph head leaf spring suspension device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11136804A (en) * | 1997-10-30 | 1999-05-21 | Central Japan Railway Co | Method for measuring contact force of pantograph |
| CN210363397U (en) * | 2019-07-01 | 2020-04-21 | 江苏飞梭智行设备有限公司 | Pantograph for suspension type rail vehicle and suspension type rail system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3930299B2 (en) * | 2001-11-19 | 2007-06-13 | 財団法人鉄道総合技術研究所 | Pantograph contact force measuring method and contact force measuring device |
| JP5280763B2 (en) * | 2008-07-17 | 2013-09-04 | 公益財団法人鉄道総合技術研究所 | Pantograph contact force measuring method and apparatus |
| JP6582348B2 (en) * | 2016-01-08 | 2019-10-02 | 三菱重工エンジニアリング株式会社 | Current collector and vehicle |
| CN107117037B (en) * | 2017-05-24 | 2023-04-11 | 西南交通大学 | Rod type pressure sensor for bow net contact force and method for measuring bow net contact force |
| CN110329078A (en) * | 2019-07-03 | 2019-10-15 | 西南交通大学 | A kind of pantograph collector head structure reducing bullet train bow net ratio of contact loss |
| CN110549856A (en) * | 2019-09-12 | 2019-12-10 | 西南交通大学 | Pantograph structure |
| CN212022343U (en) * | 2020-01-02 | 2020-11-27 | 中车株洲电力机车有限公司 | Pantograph head suspension device |
| CN112129445B (en) * | 2020-09-27 | 2021-11-23 | 中国科学院力学研究所 | Bow net contact force on-line test scheme |
-
2022
- 2022-11-17 CN CN202211439702.0A patent/CN115782598B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11136804A (en) * | 1997-10-30 | 1999-05-21 | Central Japan Railway Co | Method for measuring contact force of pantograph |
| CN210363397U (en) * | 2019-07-01 | 2020-04-21 | 江苏飞梭智行设备有限公司 | Pantograph for suspension type rail vehicle and suspension type rail system |
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| CN115782598A (en) | 2023-03-14 |
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