CN106347418A - Shaft pin type force measuring sensor used for railway switching mechanism - Google Patents
Shaft pin type force measuring sensor used for railway switching mechanism Download PDFInfo
- Publication number
- CN106347418A CN106347418A CN201610951278.6A CN201610951278A CN106347418A CN 106347418 A CN106347418 A CN 106347418A CN 201610951278 A CN201610951278 A CN 201610951278A CN 106347418 A CN106347418 A CN 106347418A
- Authority
- CN
- China
- Prior art keywords
- elastomer
- pin type
- axis
- type force
- turnout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 38
- 239000000806 elastomer Substances 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000011888 foil Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a shaft pin type force measuring sensor used for a railway switching mechanism. The shaft pin type force measuring sensor comprises an elastomer, a sealing cover plate, a thread outlet nozzle and strain gauges, wherein the elastomer is in a shaft pin type shape and comprises a head and a cylinder part, a blind hole cavity is formed at the center of the elastomer, the sealing cover plate is connected with the head in a sealed mode and covers the cavity, the cylinder part is matched with pin holes of an actuating rod and a turnout pushing rod, two annular through slots are axially formed in an outer cylindrical surface at an interval, two groups of strain gauges are stuck on the inner wall of the cavity corresponding to the annular slots, the strain gauges are of a shear type, the width of each strain gauge in the axis direction of the elastomer is less than the width of each through slot on the axis, and central positions of the two groups of strain gauges on the axis are respectively consistent with the central positions of the two annular through slots on the axis. The shaft pin type force measuring sensor disclosed by the invention can monitor the magnitude for an acting force between the actuating rod and the turnout pushing rod in a turnout system action process in real time, has the characteristics of dust prevention, rust prevention and moisture resistance, and can operate stably under severe working conditions for a long time.
Description
Technical field
The present invention relates to a kind of axial pin type force cell for railway point mechanism.
Background technology
Railway point mechanism is that normal, the safe operation ensureing the railway system has played huge effect, and huge
Railway road network in number of applications huge, monitoring with prevent turn-out track when fault generation significant.Point mechanism actuating strut with
The size of the intermolecular forces of turnout catch bar reflects the working condition of point mechanism, supervising in real time online to this push-pull effort
Survey, you can play the on-line monitoring to point mechanism action failure and prevention, be to ensure that one of railway system's safe operation has
Effect measure.
Connecting pin between actuating strut and turnout catch bar in point mechanism is replaced using axial pin type force cell, full
Sufficient transmitting movement and active force simultaneously, also can carry out real-time online to the push/pull active force between actuating strut and turnout catch bar
Measurement it is achieved that dynameter integrated and intelligent, additionally, substantial amounts of turn collected by axial pin type force cell
Rut mechanism real-time effect force data also provides strong data supporting for improving, being lifted railway system's hardware device.
The connecting pin being now used between point mechanism actuating strut and turnout catch bar has specific overall dimensions, and generally
Expose in the natural environment of field, working condition is complicated, severe, to the sealing of the axial pin type sensor for substituting connecting pin, prevent
The characteristics such as rust, stability propose very high requirement, and existing axial pin type sensor cannot meet use demand.
Content of the invention
The present invention proposes a kind of axial pin type force cell for railway point mechanism, can replace point mechanism action
Connecting pin transmitting forces between bar and turnout catch bar, also can measure push/pull between actuating strut and turnout catch bar in real time
The size of active force, has reliable and stable operating characteristic in complicated, severe field natural environment simultaneously.
For achieving the above object, the present invention include elastomer, close for railway point mechanism axial pin type force cell
Capping plate, outlet nozzle and strain gauge, described elastomer is axial pin type shape, and described elastomer includes head and cylindrical portion, wherein
The heart has blind hole cavity, and described seal cover board is connected with described head seal, covers described cavity, described cylindrical portion and actuating strut
And the pin-and-hole of turnout catch bar matches, its external cylindrical surface is axially spaced there are two annular through groove, described strain is calculated as
Two groups, be pasted on respectively on the described cavity inner wall corresponding to described cannelure, described strain is calculated as shearing strain gauge, its
The width of the axis direction of described elastomer is less than the width on this axis of described groove, and described in two groups, strain gauge is in described axle
Center on described axis is consistent with two described annular through groove respectively for center on line.
Preferably sensor elastomer and seal cover board are all using high-strength stainless steel, close between elastomer and seal cover board
By the way of the mode that envelope connects adds bolt fastening using welding or sealing ring.
Preferably described elastomer has connecting pin identical overall dimensions and actuating strut and turnout catch bar between.
Foil gauge described in preferably every group be two panels, be relatively pasted onto on described cavity inner wall, foil gauge described in two panels it
Between the midpoint of distance just fall on the axis of described elastomer.
Preferably described head has locating surface, is provided with installing the screw thread of described outlet nozzle on a locating surface
Hole, when being used by described locating surface location and installation, described four foil gauges are centrally located in same plane, this plane with
Force acting on transducer direction is perpendicular.
Due to taking above technical scheme, it has the advantage that the present invention
1st, axial pin type sensor is adopted to replace the connecting pin between actuating strut and turnout catch bar in point mechanism, in the company of rising
Connect, intermal force while, can push-and-pull action power between dynamic real-time measurement actuating strut and turnout catch bar, sign is acted on
The signal transmission of power gives upper collecting device, for being monitored to the running status of turn-out track system, has integrated, intelligent
Characteristic.
2nd, there is dust-proof, antirust, moistureproof characteristic, can be exposed to the complexity of natural environment, under poor working conditions long
Phase steady operation.
Brief description
Fig. 1 is railway point mechanism axial pin type sensor monnolithic case.
Fig. 2 is railway point mechanism axial pin type sensor section.
Fig. 3 is railway point mechanism axial pin type sensor installation site figure.
The schematic diagram of Fig. 4 point mechanism actuating strut pin-and-hole end i.
The schematic diagram of Fig. 5 point mechanism turnout catch bar pin-and-hole end ii.
Fig. 6 is the schematic diagram at railway point mechanism axial pin type sensor elastomer visual angle one.
Fig. 7 is the schematic diagram at railway point mechanism axial pin type sensor elastomer visual angle two.
Fig. 8 is railway point mechanism axial pin type sensor end cover structure figure.
Fig. 9 is railway point mechanism axial pin type sensor outlet nozzle structure chart.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described in detail.
As shown in Figure 1, 2, the axial pin type sensor composition for railway point mechanism of the present invention specifically includes that elasticity
Body 1, end cap 2, outlet nozzle 3, strain gauge 4.
1st, elastomer 1
As shown in Figure 6,7, elastomer 1 is the core component of pin sensor, transmission actuating strut and turnout catch bar it
Ess-strain is produced while intermolecular forces.Its entire body adopts high-strength stainless steel, one numerical control machine-shaping.
As shown in Fig. 3,4,5, when installing and using, sensor is coordinated with point mechanism actuating strut i and turnout catch bar ii
Connect, the pin-and-hole i-1 axial contact cooperation of elastomer 1 face of cylinder 1-i and actuating strut i, elastomer 1 face of cylinder 1-ii is pushed away with turnout
The pin-and-hole ii-1 axial contact cooperation of lever ii.
Elastomer 1 includes head and cylindrical portion, and it is with point mechanism actuating strut i pin-and-hole i-1 and turnout catch bar ii pin-and-hole
On the external cylindrical surface of the cylindrical portion that ii-1 matches, there are two annular through groove 1.1 compartment of terrain, and the center of elastomer 1 has blind cavity
Body, two groups of strain gauges 4 are respectively adhered on cavity inner wall corresponding with annular through groove 1.1, and two grooves 1.1 are in elastomer 1
The center of axis direction is consistent with the axis direction center of the upper two groups of strain gauges 4 of elastomer 1 internal chamber wall 1-4.Each
The axial width of groove 1.1 is slightly larger than the axial width of every group of strain gauge 4.
2nd, seal cover board 2
As shown in figure 8, seal cover board 2 material is consistent with elastomer 1, acts primarily as and sensor inner chamber is carried out seal protection
Effect, Short Cylinder Surface 2-1.1 on cover plate 2 and elastomer 1 endoporus 1-2.1 coaxial cooperation, end face 2-1.2 and end face 1-2.2 pastes
Close, finally using laser welding technology, end face 2 and elastomer 1 are tightly connected it is ensured that the protection against the tide of sensor, dust-free characteristics.Close
Envelope connect mode also can using sealing ring add bolt fasten by the way of etc..
3rd, outlet nozzle 3
As shown in figure 9, outlet nozzle 3 is used for drawing connecting wire, there is fire resistance characteristic, external screw thread 3-1 screws on elastomer
In the female thread 1-3 in portion, the effect of wire is to power and transmission signal for sensor internal strain gauge.
4th, strain gauge 4
Strain gauge 4 used is shear strain meter, has two groups, every group includes two foil gauges in the present embodiment, and relatively
Be pasted onto on described cavity inner wall, described in two panels, between foil gauge, the midpoint of distance just falls in the axis of described elastomer
On, two groups of foil gauges are accordingly pasted onto on described cavity inner wall respectively in the axial direction two-by-two, i.e. belong to two groups
The line of corresponding point of corresponding two panels foil gauge and axis parallel, elastomer 1 head has locating surface, in a locating surface
On be provided with the screwed hole of described outlet nozzle is installed, when being used by elastomer head positioning face location and installation, four
Foil gauge central point is respectively positioned in same plane, and this plane is perpendicular with elastomer 1 Impact direction.In the course of the work, strain
Count the miniature deformation amount that elastomer is produced by push-pull effort and be converted into the signal of telecommunication characterizing force value size.
Claims (5)
1. a kind of axial pin type force cell for railway point mechanism it is characterised in that: include elastomer, seal cover board,
Outlet nozzle and strain gauge, described elastomer is axial pin type shape, and described elastomer includes head and cylindrical portion, and its center has blind
Vestibule body, described seal cover board is connected with described head seal, covers described cavity, and described cylindrical portion is pushed away with actuating strut and turnout
The pin-and-hole of lever matches, and its external cylindrical surface is axially spaced have two annular through groove, described strain is calculated as two groups, respectively
It is pasted on the described cavity inner wall corresponding to described cannelure, described strain is calculated as shearing strain gauge, it is in described elasticity
The width of the axis direction of body is less than width on described axis for the described groove, and described in two groups, strain gauge is on described axis
Center on described axis is consistent with two described annular through groove respectively for center.
2. the axial pin type force cell for railway point mechanism according to claim 1 it is characterised in that: sensor
, all using high-strength stainless steel, the mode being tightly connected between elastomer and seal cover board is using weldering for elastomer and seal cover board
Connect or sealing ring adds the mode that bolt fastens.
3. the axial pin type force cell for railway point mechanism according to claim 1 it is characterised in that: described bullet
Gonosome has connecting pin identical overall dimensions and actuating strut and turnout catch bar between.
4. the axial pin type force cell for railway point mechanism according to claim 1 it is characterised in that: every group of institute
Stating foil gauge is two panels, is relatively pasted onto on described cavity inner wall, described in two panels, between foil gauge, the midpoint of distance just falls
On the axis of described elastomer.
5. the axial pin type force cell for railway point mechanism according to claim 4 it is characterised in that: described head
Portion has locating surface, is provided with installing the screwed hole of described outlet nozzle, when by described locating surface on a locating surface
When location and installation uses, described four foil gauges are centrally located in same plane, this plane and described elastomer Impact direction
Perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951278.6A CN106347418B (en) | 2016-11-02 | 2016-11-02 | Axial pin type load cell for railway point mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610951278.6A CN106347418B (en) | 2016-11-02 | 2016-11-02 | Axial pin type load cell for railway point mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106347418A true CN106347418A (en) | 2017-01-25 |
| CN106347418B CN106347418B (en) | 2018-09-18 |
Family
ID=57863457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610951278.6A Active CN106347418B (en) | 2016-11-02 | 2016-11-02 | Axial pin type load cell for railway point mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106347418B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356368A (en) * | 2017-07-10 | 2017-11-17 | 蚌埠日月仪器研究所有限公司 | Axial pin type pull pressure sensor calibration tool |
| CN112146801A (en) * | 2020-08-20 | 2020-12-29 | 大连理工大学 | Method for monitoring switching force of point switch |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2243075Y (en) * | 1995-09-18 | 1996-12-18 | 常州托利多电子衡器有限公司 | Pin-shaft type shear beam sensor |
| CN2408447Y (en) * | 1999-05-18 | 2000-11-29 | 王乔 | Force detector for switcher |
| CN2578199Y (en) * | 2002-11-08 | 2003-10-08 | 佟元江 | Switch power testing apparatus |
| CN200982896Y (en) * | 2006-09-01 | 2007-11-28 | 陕西正信铁路器材有限公司 | Portable point switch tester |
| CN101113930A (en) * | 2007-08-29 | 2008-01-30 | 济南铁路天龙高新技术开发有限公司 | Switcher transform force no-pulling pin tester |
| JP2010159548A (en) * | 2009-01-06 | 2010-07-22 | Hitachi Constr Mach Co Ltd | Working machine and pin-type load cell |
| CN202177476U (en) * | 2011-07-19 | 2012-03-28 | 宁波金旭电子有限公司 | Shaft-pin-type sensor |
| CN103353365A (en) * | 2013-06-27 | 2013-10-16 | 南京航空航天大学 | Point-contact pin-type force sensor |
| CN204831317U (en) * | 2015-08-24 | 2015-12-02 | 马鞍山科勒称重设备制造有限公司 | Prevent rotatory pivot sensor |
| CN105588669A (en) * | 2015-12-11 | 2016-05-18 | 广西柳工机械股份有限公司 | Shaft pin-type three-way force-measuring sensor |
| CN206465952U (en) * | 2016-11-02 | 2017-09-05 | 中国航天空气动力技术研究院 | Axial pin type force cell for railway point mechanism |
-
2016
- 2016-11-02 CN CN201610951278.6A patent/CN106347418B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2243075Y (en) * | 1995-09-18 | 1996-12-18 | 常州托利多电子衡器有限公司 | Pin-shaft type shear beam sensor |
| CN2408447Y (en) * | 1999-05-18 | 2000-11-29 | 王乔 | Force detector for switcher |
| CN2578199Y (en) * | 2002-11-08 | 2003-10-08 | 佟元江 | Switch power testing apparatus |
| CN200982896Y (en) * | 2006-09-01 | 2007-11-28 | 陕西正信铁路器材有限公司 | Portable point switch tester |
| CN101113930A (en) * | 2007-08-29 | 2008-01-30 | 济南铁路天龙高新技术开发有限公司 | Switcher transform force no-pulling pin tester |
| JP2010159548A (en) * | 2009-01-06 | 2010-07-22 | Hitachi Constr Mach Co Ltd | Working machine and pin-type load cell |
| CN202177476U (en) * | 2011-07-19 | 2012-03-28 | 宁波金旭电子有限公司 | Shaft-pin-type sensor |
| CN103353365A (en) * | 2013-06-27 | 2013-10-16 | 南京航空航天大学 | Point-contact pin-type force sensor |
| CN204831317U (en) * | 2015-08-24 | 2015-12-02 | 马鞍山科勒称重设备制造有限公司 | Prevent rotatory pivot sensor |
| CN105588669A (en) * | 2015-12-11 | 2016-05-18 | 广西柳工机械股份有限公司 | Shaft pin-type three-way force-measuring sensor |
| CN206465952U (en) * | 2016-11-02 | 2017-09-05 | 中国航天空气动力技术研究院 | Axial pin type force cell for railway point mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107356368A (en) * | 2017-07-10 | 2017-11-17 | 蚌埠日月仪器研究所有限公司 | Axial pin type pull pressure sensor calibration tool |
| CN112146801A (en) * | 2020-08-20 | 2020-12-29 | 大连理工大学 | Method for monitoring switching force of point switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106347418B (en) | 2018-09-18 |
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