CN110987270A - Contact net tension sensor device - Google Patents
Contact net tension sensor device Download PDFInfo
- Publication number
- CN110987270A CN110987270A CN201911057535.1A CN201911057535A CN110987270A CN 110987270 A CN110987270 A CN 110987270A CN 201911057535 A CN201911057535 A CN 201911057535A CN 110987270 A CN110987270 A CN 110987270A
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- China
- Prior art keywords
- protective cover
- tension sensor
- shell
- contact net
- sensor device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a contact net tension sensor device, wherein a protective cover can be formed above the contact net tension sensor device by mutually clamping a first protective cover and a second protective cover under the matching of a clamping block and a clamping groove, so that rain and snow can be prevented from striking a tension sensing piece, the tension sensing piece is prevented from being damaged, meanwhile, rainwater can be prevented from permeating into the tension sensing piece or permeating into the shell to cause the damage of a circuit board, further, the damage of the contact net tension sensor device is avoided, in addition, the sealing ring is arranged, the sealing performance of the first protective cover and the second protective cover can be improved, the rainwater is further prevented from permeating, and the service life of the contact net tension sensor device is prolonged.
Description
Technical Field
The invention relates to the technical field of tension sensors, in particular to a contact net tension sensor device.
Background
Present railway electric power contact net tension wireless sensing system, can be used to ordinary electric appliances railway, the electric power contact net rope tension monitoring of railway lines such as high-speed railway, can realize gathering in real time contact net tension data, the automation of unusual data alarm and component fault detection, mainly by contact net tension sensor device, wireless sensing network and big data processing system constitute, but because contact net tension sensor device exposes and is suffered from the wind and blows the sun in the open air, especially in sleet weather, sleet is to hitting or the rainwater infiltration to the inside of contact net tension sensor device, all easily cause contact net tension sensor device to damage, reduce contact net tension sensor device's life.
Disclosure of Invention
The invention aims to provide a contact net tension sensor device, and aims to solve the technical problems that the contact net tension sensor device in the prior art is exposed outdoors, and the contact net tension sensor device is easily damaged by hitting of rain and snow or rainwater seeps into the contact net tension sensor device, so that the service life of the contact net tension sensor device is shortened.
In order to achieve the purpose, the contact net tension sensor device adopted by the invention comprises a shell, two supporting pieces, two tension sensing pieces, a pressing piece, a fastening bolt and a protection assembly, wherein a circuit board is arranged in the shell, the two supporting pieces are respectively fixedly connected with the shell and are positioned at two ends of the shell, each pressing piece is provided with a groove for accommodating a power transmission line in a contact net, the tension sensing piece is arranged in the groove, the pressing piece is detachably connected with the shell through the fastening bolt, and a gap for the power transmission line in the contact net to pass through is formed between the pressing piece and the shell;
the protective component comprises a connecting piece, a first protective cover, a second protective cover, a clamping block and a sealing ring, the connecting piece is fixedly connected with the shell, and are respectively positioned on two side walls of the shell, a water storage cavity is arranged in the first protective cover, the first protective cover and the second protective cover are respectively and rotatably connected with the matched connecting piece, the first protective cover and the second protective cover are oppositely arranged along the length extending direction of the power transmission line in the contact net, the clamping block is fixedly connected with the first protective cover, and is positioned at one end of the first protective cover far away from the connecting piece, one end of the second protective cover far away from the matched connecting piece is provided with a clamping groove, the clamping groove is matched with the clamping block, and the sealing ring is fixedly connected with the first protective cover and the second protective cover and located at the joint of the first protective cover and the second protective cover.
The first protective cover is connected with the second protective cover, and the cross section of the first protective cover and the cross section of the second protective cover are combined to form a semicircular structure.
The outer surface walls of the first protective cover and the second protective cover are provided with a plurality of water guide grooves, and the water guide grooves are uniformly distributed along the length extending direction of the power transmission line in the contact network.
The cross section of each water chute is in an arc-shaped structure.
The fixture block is provided with a plurality of water guide channels, and each water guide channel is communicated with the water storage cavity.
And one end of the first protective cover, which is far away from the clamping block, is provided with a drainage hole.
The protection assembly further comprises a filter screen, and the filter screen is fixedly connected with the clamping block and is located at the water inlet end of the water guide channel.
The protection assembly further comprises four baffles, the number of the baffles is four, every two baffles are fixedly connected with the first protection cover and the second protection cover respectively and are located at two ends of the first protection cover and two ends of the second protection cover respectively.
The invention has the beneficial effects that: the first protective cover and the second protective cover are clamped with the clamping block under the matching of the clamping groove, a protective cover can be formed above the contact net tension sensor device and used for preventing rain and snow from striking the tension sensing piece to avoid damage of the tension sensing piece and simultaneously preventing rainwater from permeating into the tension sensing piece or the tension sensing piece from permeating into the shell to cause circuit board damage, so that the contact net tension sensor device is prevented from being damaged, the sealing ring is arranged to improve the sealing performance of the first protective cover and the second protective cover, and rainwater is further prevented from permeating.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the catenary tension sensor device of the invention.
Fig. 2 is a schematic diagram of the internal structure of the catenary tension sensor device of the invention.
Fig. 3 is a cross-sectional view of the catenary tension sensor apparatus of the present invention.
Fig. 4 is an enlarged view of a part of the structure of the catenary tension sensor device of the invention.
Fig. 5 is a side view of the catenary tension sensor apparatus of the present invention.
Fig. 6 is a schematic structural view of the catenary tension sensor device of the invention without the protective assembly.
100-contact net tension sensor device, 10-shell, 11-supporting piece, 12-tension sensing piece, 13-pressing piece, 131-groove, 14-fastening bolt, 20-protection component, 21-connecting piece, 22-first protection cover, 221-water storage cavity, 222-water chute, 223-water drainage hole, 23-second protection cover, 24-fixture block, 241-water guide channel, 25-sealing ring, 26-filter screen and 27-baffle.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 6, the invention provides a contact net tension sensor device 100, which includes a housing 10, two supporting pieces 11, two tension sensing pieces 12, two pressing pieces 13, two fastening bolts 14, and a protection assembly 20, where the housing 10 is provided with a circuit board inside, the two supporting pieces 11 are respectively and fixedly connected to the housing 10 and located at two ends of the housing 10, each pressing piece 13 is provided with a groove 131 for accommodating a power line in a contact net, the tension sensing piece 12 is arranged inside the groove 131, the pressing piece 13 is detachably connected to the housing 10 through the fastening bolt 14, and a gap for the power line in the contact net to pass through is formed between the pressing piece 13 and the housing 10;
the protection assembly 20 comprises a connecting piece 21, a first protection cover 22, a second protection cover 23, a clamping block 24 and a sealing ring 25, the connecting piece 21 is fixedly connected with the shell 10 and is respectively positioned on two side walls of the shell 10, a water storage cavity 221 is arranged in the first protection cover 22, the first protection cover 22 and the second protection cover 23 are respectively rotatably connected with the connecting piece 21 matched with each other, the first protection cover 22 and the second protection cover 23 are oppositely arranged along the length extending direction of a transmission line in a contact network, the clamping block 24 is fixedly connected with the first protection cover 22 and is positioned at one end of the first protection cover 22 far away from the connecting piece 21, a clamping groove is arranged at one end of the second protection cover 23 far away from the connecting piece 21 matched with each other, the clamping groove is mutually matched with the clamping block 24, and the sealing ring 25 is respectively fixedly connected with the first protection cover 22 and the second protection cover 23, and is located at the junction of the first shield 22 and the second shield 23.
In this embodiment, a window for placing a circuit board is opened on a side wall of the housing 10, a hole cover covers the window, the hole cover is fixed on the housing 10 by a bolt, the tension sensing element 12 is a tension sensor, and the use method of the catenary tension sensor apparatus 100 is as follows: the contact net passes through a gap between the pressing piece 13 and the shell 10, the two supporting pieces 11 respectively support the contact nets on two sides of the pressing piece 13, then the fastening bolt 14 is locked, the contact nets are fixed between the pressing piece 13 and the shell 10, the contact nets receive tensile force and are transmitted to the circuit board inside the shell 10 through the tension sensing piece 12, a data processor, a lithium battery pack and a short-distance low-power wireless communication module are further arranged inside the shell 10, the circuit board transmits received tensile force data to the data processor for analysis and processing, and the data information after analysis and processing is wirelessly transmitted to an external master controller PLC through the short-distance low-power wireless communication module so as to complete detection of the tensile force of the contact net. Wherein data processor adopts the signal processing system who uses STM32F103C8T6 singlechip as the core, and this singlechip has 2 12 bit analog-to-digital converters, 1us conversion time, conversion range: 0 to 3.6V, has double sampling and holding functions and can better meet the requirement of sensor signal processing. Meanwhile, the power consumption of the singlechip system is lower than 50ma when the singlechip system works, and the singlechip system has the characteristic of low power consumption. An embedded high-speed low-power-consumption single chip microcomputer and a high-performance LoRa spread spectrum chip SX1278 are adopted in the low-power-consumption wireless communication module, and the high-efficiency cyclic interleaving error correction and detection coding capability is achieved, and the anti-interference and sensitivity are high. The transmitting power is 100mW, the power consumption is low, the wireless wake-up function is realized, and the LoRa spread spectrum can bring a longer communication distance. Lithium cell group is used for providing the electric energy to each power consumption part, the both sides of the outside of casing 10 still are provided with miniature solar cell panel, can be used to convert light energy into electric energy, charge lithium cell group, and power is 6W under normal standard test illumination condition, also can generate electricity under the condition that also can have weak illumination in rainy day, and only power reduces.
Due to the influence of rain and snow weather, the catenary tension sensor device 100 is easily damaged, so that the first protective cover 22 and the second protective cover 23 can be turned over, the first protective cover 22 and the second protective cover 23 are turned over to the upper side of the fastening bolt 14, and then the clamping block 24 and the clamping groove are clamped with each other, that is, the first protective cover 22 and the second protective cover 23 are clamped with each other, a protective cover is formed right above the shell 10 for preventing rain and snow from striking the tension sensing part 12, so as to prevent the tension sensing part 12 from being damaged, and simultaneously, rain water can be prevented from permeating into the tension sensing part 12 or rainwater can permeate into the interior of the shell 10 along a gap between the hole cover and the shell 10 to cause damage to a circuit board, so that the service life of the catenary tension sensor device 100 is prolonged, and the arrangement of the sealing ring 25 can improve the service life of the protective cover at the joint of the first protective cover 22 and the second protective cover 23 The sealing property further prevents rainwater from seeping into the joint between the first protective cover 22 and the second protective cover 23 and dripping onto the tension sensing member 12.
Further, the first protection cover 22 is connected with the second protection cover 23, and the cross section of the first protection cover 22 and the cross section of the second protection cover 23 are combined to form a semicircular structure.
In this embodiment, when the first protection cover 22 and the second protection cover 23 are fastened, the first protection cover 22 and the second protection cover 23 are combined to form a protection cover with a semicircular arc surface, so that rainwater or snow water can be drained when the rainwater or the snow water drops to the outer surface wall of the protection cover with the semicircular arc surface, the rainwater or the snow water can be quickly dropped to the ground along the arc surface, and the rainwater or the snow water can be effectively prevented from being accumulated along the joint of the first protection cover 22 and the second protection cover 23 and permeating into the tension sensing piece 12 or the circuit board is damaged inside the housing 10, so that the service life of the contact net tension sensor device 100 is prolonged.
Further, the outer surface walls of the first protective cover 22 and the second protective cover 23 are respectively provided with a plurality of water chutes 222, and the plurality of water chutes 222 are uniformly distributed along the length extending direction of the power transmission line in the overhead line system.
In this embodiment, when rainwater or snow water drops to the outer surface wall of the protection cover with the semicircular arc surface, the water guiding grooves 222 can guide the rainwater or the snow water, so that the rainwater or the snow water can quickly drop to the ground along the water guiding grooves 222, and the rainwater or the snow water can be effectively prevented from being accumulated along the joint of the first protection cover 22 and the second protection cover 23 and permeating into the tension sensing part 12 or the inside of the shell 10 to cause the circuit board to be damaged, thereby prolonging the service life of the contact net tension sensor device 100.
Further, the cross section of each water chute 222 is arranged in an arc structure.
In this embodiment, the cross section of each water chute 222 is of an arc structure, so that rainwater or snow water dropping into the water chute 222 can be rapidly gathered and rapidly guided to the ground, thereby preventing rainwater or snow water from penetrating into the tension sensing part 12 to cause damage, and preventing rainwater or snow water from penetrating into the casing 10 to cause damage to the circuit board.
Further, the fixture block 24 has a plurality of water guide channels 241, and each of the water guide channels 241 is respectively communicated with the water storage cavity 221. One end of the first protection cover 22 far away from the fixture block 24 is provided with a drainage hole 223.
In this embodiment, when rain water or snow water seeps from the connection between the first protection cover 22 and the second protection cover 23, the rain water or snow water may flow into the outer surface wall of the fixture block 24, and then the water may flow into the water storage cavity 221 through the plurality of water guide channels 241, and then the water in the water storage cavity 221 may be drained to the ground through the drainage hole 223, so as to prevent the seeped rain water from dripping onto the catenary tension sensor device 100, which may damage the circuit board on the tension sensing member 12 or inside the housing 10.
Further, the protection assembly 20 further includes a filter screen 26, and the filter screen 26 is fixedly connected to the fixture block 24 and is located at a water inlet end of the water guide channel 241.
In this embodiment, the filter screen 26 can filter large particle impurities doped in the rainwater, so as to prevent the water guide channel 241 from being blocked by the impurities.
Further, the protection assembly 20 further includes four baffles 27, where the number of the baffles 27 is four, and every two baffles 27 are respectively and fixedly connected to the first protection cover 22 and the second protection cover 23 and respectively located at two ends of the first protection cover 22 and the second protection cover 23.
In this embodiment, the baffles 27 are disposed at the two ends of the first protective cover 22 and the second protective cover 23, so that the baffles 27 can effectively block rainwater or snow water, and damage to the contact net tension sensor device 100 caused by hitting of rain and snow on the contact net tension sensor device 100 or infiltration of rainwater into the contact net tension sensor device 100 is avoided.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A contact net tension sensor device is characterized in that,
the tension sensing device comprises a shell, two bearing pieces, tension sensing pieces, pressing pieces, fastening bolts and a protection assembly, wherein a circuit board is arranged in the shell, the two bearing pieces are fixedly connected with the shell respectively and are positioned at two ends of the shell, each pressing piece is provided with a groove for accommodating a power transmission line in a contact network, the tension sensing pieces are arranged in the grooves, the pressing pieces are detachably connected with the shell through the fastening bolts, and gaps for the power transmission lines in the contact network to pass through are formed between the pressing pieces and the shell;
the protective component comprises a connecting piece, a first protective cover, a second protective cover, a clamping block and a sealing ring, the connecting piece is fixedly connected with the shell, and are respectively positioned on two side walls of the shell, a water storage cavity is arranged in the first protective cover, the first protective cover and the second protective cover are respectively and rotatably connected with the matched connecting piece, the first protective cover and the second protective cover are oppositely arranged along the length extending direction of the power transmission line in the contact net, the clamping block is fixedly connected with the first protective cover, and is positioned at one end of the first protective cover far away from the connecting piece, one end of the second protective cover far away from the matched connecting piece is provided with a clamping groove, the clamping groove is matched with the clamping block, and the sealing ring is fixedly connected with the first protective cover and the second protective cover and located at the joint of the first protective cover and the second protective cover.
2. The catenary tension sensor apparatus of claim 1,
the first protective cover is connected with the second protective cover, and the cross section of the first protective cover and the cross section of the second protective cover are combined to form a semicircular structure.
3. The catenary tension sensor apparatus of claim 1,
the outer surface walls of the first protective cover and the second protective cover are provided with a plurality of water guide grooves, and the water guide grooves are uniformly distributed along the length extending direction of the power transmission line in the contact net.
4. The catenary tension sensor apparatus of claim 3,
the cross section of each water chute is in an arc-shaped structure.
5. The catenary tension sensor apparatus of claim 1,
the fixture block is provided with a plurality of water guide channels, and each water guide channel is communicated with the water storage cavity.
6. The catenary tension sensor apparatus of claim 5,
one end of the first protective cover, which is far away from the clamping block, is provided with a drainage hole.
7. The catenary tension sensor apparatus of claim 6,
the protection assembly further comprises a filter screen, and the filter screen is fixedly connected with the clamping block and is positioned at the water inlet end of the water guide channel.
8. The catenary tension sensor apparatus of claim 1,
the protection assembly further comprises four baffles, the number of the baffles is four, every two baffles are fixedly connected with the first protection cover and the second protection cover respectively and are located at two ends of the first protection cover and two ends of the second protection cover respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911057535.1A CN110987270A (en) | 2019-11-01 | 2019-11-01 | Contact net tension sensor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911057535.1A CN110987270A (en) | 2019-11-01 | 2019-11-01 | Contact net tension sensor device |
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| Publication Number | Publication Date |
|---|---|
| CN110987270A true CN110987270A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911057535.1A Pending CN110987270A (en) | 2019-11-01 | 2019-11-01 | Contact net tension sensor device |
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| CN (1) | CN110987270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114509199A (en) * | 2022-02-28 | 2022-05-17 | 西安思微传感科技有限公司 | Outdoor on-line monitoring tension sensor |
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Effective date of registration: 20200723 Address after: No.255, Wanglong Road, Shibantan Town, Xindu high tech Industrial Park, Chengdu, Sichuan 610511 Applicant after: Chengdu Yuntie Intelligent Transportation Technology Co.,Ltd. Applicant after: Chengdu Shengchuang Shulian Technology Co.,Ltd. Address before: 2205, 22 / F, innovation building, Southwest Jiaotong University, No.111, North 1st section, 2nd Ring Road, jiulidi street, Jinniu District, Chengdu City, Sichuan Province Applicant before: Chengdu Yuntie Intelligent Transportation Technology Co.,Ltd. |
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Application publication date: 20200410 |
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