CN106515514B - Crimping device for accurately controlling pressing-in amount of hanger of railway bow net system - Google Patents
Crimping device for accurately controlling pressing-in amount of hanger of railway bow net system Download PDFInfo
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- CN106515514B CN106515514B CN201611077161.6A CN201611077161A CN106515514B CN 106515514 B CN106515514 B CN 106515514B CN 201611077161 A CN201611077161 A CN 201611077161A CN 106515514 B CN106515514 B CN 106515514B
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- bearing
- linear bearing
- dropper
- pressure joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/28—Manufacturing or repairing trolley lines
Abstract
The invention discloses a crimping device for accurately controlling the pressing-in amount of a dropper of a railway bow net system, which comprises a base and a loading mechanism, wherein a front baffle, a linear bearing cushion block, a semi-open type linear bearing cushion block and a rear baffle are sequentially fixed on the base; the loading mechanism comprises a loading lead screw, the loading lead screw is sequentially in threaded connection with the front baffle and the bearing sleeve, one end of the thrust bearing is embedded in the bearing sleeve, the other end of the thrust bearing is in interference fit connection with a bearing rod, the bearing rod penetrates through the linear bearing and the semi-open linear bearing and is connected with the dynamic pressure joint through clearance fit, the static pressure joint is fixed right to the dynamic pressure position, and a crimping pipe for crimping a dropper is arranged between the dynamic pressure joint and the static pressure joint. The invention is specially designed for the press-connection force and the press-in amount of the dropper, has simple structure and convenient operation, realizes the accurate control of the press-connection force and the press-in amount of the dropper, and has strong practicability and popularization.
Description
Technical Field
The invention belongs to the technical field of railway dropper crimping, and particularly relates to a crimping device for accurately controlling the dropper pressing-in amount of a railway bow net system.
Background
High-speed railways (hereinafter referred to as high-speed rails) have become an important direction for the development of rail transit due to the advantages of high speed, high efficiency, energy conservation, environmental protection, safety, comfort and the like. Particularly in the last decade, with the rapid development of economy and society, chinese high-speed rails are developed in a crossing manner, and a new round of high-speed rail construction climax in the world is driven. By 2016, 9 months, the total mileage of Chinese high-speed rail operation breaks through 20000km, and the world maximum high-speed rail operation network is built. However, with the continuous increase of the operating life of the high-speed rail, the contact network faults caused by fatigue failure of key parts of the high-speed rail contact network occur occasionally, and the operation safety of the high-speed rail is seriously influenced.
The dropper is one of key parts in the contact network system, and is operated for 7 years according to feedback of Wuguang corporation, and hundreds of kilometers of droppers are broken by dozens of. The cause of this phenomenon is primarily thought to be fatigue and strain and pressure. According to other line feedback, the problem that the hanger breaks is extremely high compared with other parts, but the test research on the hanger by an inspection station proves that the hanger is qualified. From questionnaires, 90% of people believe that the dropper line damage is due to fatigue embrittlement caused by repeated bending in the working state while the crimp force is not appropriate.
Compared with the traditional method for crimping the clamp-pressure pipe, the method for directly crimping the clamp-pressure pipe at present can not control the crimping force (different processing workers apply different crimping forces to the clamp-pressure pipe) by directly crimping the clamp-pressure pipe; the press-in amount can not be guaranteed (different workers have different deformation amounts of the pressure pipe due to different time for applying force to the pressure pipe by using the pressure pliers), the final pressure welding error of the pressure pipe is large, and the reliability of the pressure pipe is reduced.
Disclosure of Invention
The invention aims to provide a crimping device for accurately controlling the pressing-in amount of a dropper of a railway bow net system aiming at the defects of the prior art, so as to solve the problem that the magnitude of the crimping force and the pressing-in amount of the traditional crimping pipe cannot be accurately controlled.
In order to achieve the purpose, the invention adopts the technical scheme that:
the compression joint device for accurately controlling the pressing-in amount of the dropper of the railway bow net system comprises a loading mechanism;
the loading mechanism comprises a loading screw rod; the loading screw rod is sequentially in threaded connection with the front baffle and the bearing sleeve; the bearing sleeve is embedded in one end of the thrust bearing, and the other end of the thrust bearing is in interference fit with the force bearing rod; the force bearing rod penetrates through the linear bearing and the semi-open type linear bearing, and the tail end of the force bearing rod is in clearance fit with the dynamic pressure joint; a static pressure joint is fixed opposite to the dynamic pressure joint, and a pressure welding pipe for fixing a hanger is arranged between the dynamic pressure joint and the static pressure joint;
a magnetic strip plate adhered with a magnetic strip is fixed on the bearing rod, and a grating ruler displacement sensor which is matched with the magnetic strip and used for collecting the pressing amount of the dropper is fixed on the base.
Preferably, a grating ruler displacement sensor bracket for bearing the grating ruler displacement sensor is fixed on the base.
Preferably, a balance bar for controlling the shaking of the magnetic strip plate is fixed on the magnetic strip plate.
Preferably, the static pressure joint is connected with the pressure sensor through a static pressure joint seat.
Preferably, the linear bearing is fixed on the linear bearing cushion block, and the semi-open type linear bearing is fixed on the semi-open type linear bearing cushion block.
Preferably, the front baffle and the rear baffle are respectively fixed at the head end and the tail end of the base; and a linear bearing cushion block and a semi-open type linear bearing cushion block are sequentially fixed between the front baffle and the rear baffle.
Preferably, centers of the front baffle, the linear bearing pad, the semi-open type linear bearing pad and the rear baffle are located on the same straight line.
The crimping device for accurately controlling the pressing-in amount of the dropper of the railway bow net system, provided by the invention, has the following beneficial effects:
the end of the dynamic pressure joint is fixed with a static pressure joint, the compression joint pipe is arranged between the dynamic pressure joint and the static pressure joint, the dropper is fixed in the compression joint pipe, the static pressure joint transmits force to the pressure sensor through the static pressure joint seat, the movement of the bearing rod drives the movement of the magnet, and meanwhile, the grating ruler displacement sensor collects displacement data, so that the pressing-in amount of the dropper is detected.
The dropper to be crimped is installed in the crimping pipe, the screw rod is rotated, the dynamic pressure joint is pushed to move forwards along the rectangular guide groove, the dynamic pressure joint is enabled to just contact with the crimping pipe, the pressure sensor changes the indication number at the moment, meanwhile, the initial value of the grating ruler displacement sensor is recorded, then, the pressure is continuously applied to enable the crimping pipe to deform, the effect of fastening the dropper is achieved, and meanwhile, the whole crimping process is controlled according to the crimping force and the pressing-in amount required by the dropper. In the crimping process, the grating ruler displacement sensor and the pressure sensor transmit acquired data to the data acquisition control system, the data acquisition control system receives and analyzes the acquired data and feeds the data back to constructors, and the constructors implement crimping according to the fed-back data to ensure that accurate crimping force and pressing-in amount are implemented on the dropper, so that the working quality of the dropper is improved, and the service life of the dropper is prolonged.
The invention is specially designed for the compression joint force and the press-in amount of the dropper, has simple structure and convenient operation, realizes the accurate control of the compression joint force and the press-in amount of the dropper, and has strong practicability and popularization.
Drawings
Fig. 1 is a schematic structural diagram of a crimping device for accurately controlling the pressing-in amount of a dropper of a railway bow net system.
Wherein, 1, loading a lead screw; 2. a front baffle; 3. a bearing housing; 4. a thrust bearing; 5. a linear bearing; 6. a linear bearing pad block; 7. a force bearing rod; 8. a magnetic strip plate; 9. a balancing bar; 10. a semi-open type linear bearing; 11. a semi-open type linear bearing cushion block; 12. a rectangular guide groove; 13. a dropper; 14. a star-shaped tube; 15. a base; 16. a tailgate; 17. a pressure sensor; 18. a static pressure joint base; 19. a static pressure joint; 20. crimping the tube; 21. dynamic pressure joints; 22. a grating scale displacement sensor; 23. grating chi displacement sensor support.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings:
according to one embodiment of the application, as shown in fig. 1, the crimping device for accurately controlling the pressing amount of the dropper of the railway bow net system comprises a base 15 fixedly connected with a workbench and a loading mechanism connected with the base 15.
The upper surface of the base 15 is sequentially fixed with a front baffle 2, a linear bearing cushion block 6, a semi-open type linear bearing cushion block 11 and a rear baffle 16 from front to back, the linear bearing cushion block 6 is provided with a linear bearing 5, the semi-open type linear bearing cushion block 11 is provided with a semi-open type linear bearing 10, the semi-open type linear bearing 10 is fixed with a grating ruler displacement sensor support 23, and the grating ruler displacement sensor support 23 is provided with a grating ruler displacement sensor 22.
The central lines of the front baffle 2, the linear bearing cushion block 6, the semi-open type linear bearing cushion block 11 and the rear baffle 16 in the vertical direction are positioned on the same straight line, so that a constructor can vertically apply force to the hanger 13, and the accuracy of data acquisition of the pressure sensor 17 is ensured.
The loading mechanism comprises a loading lead screw 1, the loading lead screw 1 is sequentially in threaded connection with a front baffle 2 and a bearing sleeve 3, a large head end of a thrust bearing 4 is embedded in the bearing sleeve 3, a small head end of the thrust bearing 4 is in interference fit connection with a bearing rod 7, the bearing rod 7 penetrates through a linear bearing 5 and a semi-open type linear bearing 10, the bearing rod 7 is connected with a dynamic pressure joint 21 through clearance fit, a static pressure joint 19 is fixed at the tail end of the dynamic pressure joint 21, a crimping pipe 20 is arranged between the dynamic pressure joint 21 and the static pressure joint 19, a hanger 13 is fixed in the crimping pipe 20, and the static pressure joint 19 is connected with a pressure sensor 17 through a static pressure joint seat 18.
The bearing rod 7 linearly moves in the fixed linear bearing 5 and the semi-open linear bearing 10, the bearing rod 7 is in clearance fit with the dynamic pressure joint 21, the dynamic pressure joint 21 is pushed by the bearing rod 7 and then approaches the static pressure joint 19 along the rectangular guide groove 12, so that pressure is applied to the crimping pipe 20 to generate deformation, the effect of fastening the dropper 13 is achieved, the dropper 13 is wrapped with the star-shaped pipe 14 for protecting the dropper 13 and avoiding friction damage of the dropper 13, and the static pressure joint 19 transmits force to the pressure sensor 17 through the static pressure joint seat 18.
Meanwhile, a magnetic strip plate 8 is fixed on the bearing rod 7, a magnetic strip is adhered on the magnetic strip plate 8, a balance rod 9 for controlling the magnetic strip plate 8 to shake is arranged on the semi-open type linear bearing 10, the magnetic strip moves along with the movement of the bearing rod 7, and the grating ruler displacement sensor 22 detects the displacement of the bearing rod, namely the pressing-in amount of the dropper 13 can be detected.
The grating ruler displacement sensor 22 and the pressure sensor 17 are both externally connected with a data acquisition control system, the grating ruler displacement sensor 22 and the pressure sensor 17 transmit acquired data to the data acquisition control system, and the data acquisition control system receives and analyzes the acquired data and feeds the data back to constructors.
The specific process comprises the following steps: the hanging string 13 needing crimping is installed in a crimping pipe 20, the crimping pipe 20 is placed between a dynamic pressure joint 21 and a static pressure joint 19, a loading screw rod 1 is rotated to push a bearing rod 7 to do linear motion in a fixed linear bearing 5 and a semi-open type linear bearing 10, the bearing rod 7 pushes the dynamic pressure joint 21, and the dynamic pressure joint 21 approaches the static pressure joint 19 along a rectangular guide groove 12, so that pressure is applied to the crimping pipe 20, the static pressure joint is deformed, and the effect of fastening the hanging string 13 is achieved. The static pressure joint 19 transmits force to the pressure sensor 17 through the static pressure joint seat 18, the movement of the bearing rod 7 drives the magnetic strip to move, and the grating ruler displacement sensor 22 detects the displacement of the bearing rod.
When the dynamic pressure joint 21 moves forward along the rectangular guide groove 12, the dynamic pressure joint 21 just contacts the pressure welding pipe 20, at this time, the pressure sensor 17 has the change of the indication number, simultaneously records the initial value of the grating ruler displacement sensor 22, and then continues to rotate to apply pressure.
When pressure is applied, the grating ruler displacement sensor 22 and the pressure sensor 17 transmit acquired data to the data acquisition control system, the data acquisition control system receives and analyzes the acquired data and feeds the data back to constructors, the constructors carry out compression joint according to the fed data, and the whole compression joint process can be controlled according to the compression joint force or the compression amount of the hanger 13, so that the accurate compression joint force and the compression amount of the hanger 13 are ensured, the working quality of the hanger 13 is improved, and the service life of the hanger 13 is prolonged.
The invention is specially designed for accurately controlling the pressing force and the pressing-in amount of the hanger 13, has simple structure and simple and convenient operation, realizes the accurate control of the pressing force and the pressing-in amount of the hanger 13, and has strong practicability and popularization.
While the embodiments of the invention have been described in detail in connection with the accompanying drawings, it is not intended to limit the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive work within the scope of the appended claims.
Claims (4)
1. The utility model provides a crimping device of accurate control railway bow net system dropper indentation which characterized in that: the loading mechanism comprises a loading mechanism and a base for fixing the loading mechanism;
the loading mechanism comprises a loading screw rod; the loading screw rod is sequentially in threaded connection with the front baffle and the bearing sleeve; the bearing sleeve is embedded in one end of the thrust bearing, and the other end of the thrust bearing is in interference fit with the force bearing rod; the force bearing rod penetrates through the linear bearing and the semi-open type linear bearing, and the tail end of the force bearing rod is in clearance fit with the dynamic pressure joint; a static pressure joint is fixed opposite to the dynamic pressure joint, and a pressure welding pipe for fixing a hanging string is arranged between the dynamic pressure joint and the static pressure joint;
a magnetic strip plate adhered with a magnetic strip is fixed on the bearing rod, and a grating ruler displacement sensor matched with the magnetic strip and used for collecting the pressing amount of the dropper is fixed on the base;
a grating ruler displacement sensor bracket for bearing a grating ruler displacement sensor is fixed on the base;
the front baffle and the rear baffle are respectively arranged at the head end and the tail end of the base; a linear bearing cushion block and a semi-open type linear bearing cushion block are sequentially arranged between the front baffle and the rear baffle;
the centers of the front baffle, the linear bearing cushion block, the semi-open type linear bearing cushion block and the rear baffle are positioned on the same straight line.
2. The crimping device for accurately controlling the pressing-in amount of the dropper of the railway bow net system according to claim 1, wherein a balance bar for controlling the swing of the magnet plate is fixed on the magnet plate.
3. The crimping device for accurately controlling the pressing-in amount of the dropper of the railway bow net system according to claim 1, wherein the static pressure joint is connected with the pressure sensor through a static pressure joint seat.
4. The crimping device for accurately controlling the pressing-in amount of the dropper of the railway bow-net system according to claim 1, wherein the linear bearing is fixed on a linear bearing cushion block, and the semi-open type linear bearing is fixed on the semi-open type linear bearing cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611077161.6A CN106515514B (en) | 2016-11-30 | 2016-11-30 | Crimping device for accurately controlling pressing-in amount of hanger of railway bow net system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611077161.6A CN106515514B (en) | 2016-11-30 | 2016-11-30 | Crimping device for accurately controlling pressing-in amount of hanger of railway bow net system |
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| Publication Number | Publication Date |
|---|---|
| CN106515514A CN106515514A (en) | 2017-03-22 |
| CN106515514B true CN106515514B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611077161.6A Active CN106515514B (en) | 2016-11-30 | 2016-11-30 | Crimping device for accurately controlling pressing-in amount of hanger of railway bow net system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107618403B (en) * | 2017-09-18 | 2023-07-07 | 西南交通大学 | Integral hanger |
Citations (8)
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|---|---|---|---|---|
| DE19538827C1 (en) * | 1995-10-18 | 1997-04-17 | Siemens Ag | Device for suspending two parallel contact wires |
| JPH11115556A (en) * | 1997-10-15 | 1999-04-27 | Sanwa Tekki Corp | Length determining pressure mounting device for hanger ear |
| CN201317292Y (en) * | 2008-12-10 | 2009-09-30 | 中铁电气化局集团有限公司 | Contact net integrated dropper manufacturing device |
| CN103129415A (en) * | 2013-03-21 | 2013-06-05 | 中铁电气化局集团有限公司 | Catenary dropper numerical control preplan platform |
| CN103738203A (en) * | 2014-02-18 | 2014-04-23 | 牛玉田 | Nondestructive crimping type integral dropper, and nondestructive crimping technology and method |
| CN205020698U (en) * | 2015-09-30 | 2016-02-10 | 铁道第三勘察设计院集团有限公司 | Device is joined in marriage in advance to dropper of accurate control |
| CN205130971U (en) * | 2015-11-02 | 2016-04-06 | 保定朝雄电气化电力器材有限公司 | Prefabricated crimping platform of dropper |
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2016
- 2016-11-30 CN CN201611077161.6A patent/CN106515514B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19538827C1 (en) * | 1995-10-18 | 1997-04-17 | Siemens Ag | Device for suspending two parallel contact wires |
| JPH11115556A (en) * | 1997-10-15 | 1999-04-27 | Sanwa Tekki Corp | Length determining pressure mounting device for hanger ear |
| CN201317292Y (en) * | 2008-12-10 | 2009-09-30 | 中铁电气化局集团有限公司 | Contact net integrated dropper manufacturing device |
| CN103129415A (en) * | 2013-03-21 | 2013-06-05 | 中铁电气化局集团有限公司 | Catenary dropper numerical control preplan platform |
| CN103738203A (en) * | 2014-02-18 | 2014-04-23 | 牛玉田 | Nondestructive crimping type integral dropper, and nondestructive crimping technology and method |
| CN205020698U (en) * | 2015-09-30 | 2016-02-10 | 铁道第三勘察设计院集团有限公司 | Device is joined in marriage in advance to dropper of accurate control |
| CN205130971U (en) * | 2015-11-02 | 2016-04-06 | 保定朝雄电气化电力器材有限公司 | Prefabricated crimping platform of dropper |
| CN106159810A (en) * | 2016-08-30 | 2016-11-23 | 中国铁建电气化局集团北方工程有限公司 | Full-automatic high ferro dropper line threader |
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| Title |
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| CN106515514A (en) | 2017-03-22 |
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