CN109029665B - Pillow type rail Heng Chenchong sensor - Google Patents
Pillow type rail Heng Chenchong sensor Download PDFInfo
- Publication number
- CN109029665B CN109029665B CN201811205062.0A CN201811205062A CN109029665B CN 109029665 B CN109029665 B CN 109029665B CN 201811205062 A CN201811205062 A CN 201811205062A CN 109029665 B CN109029665 B CN 109029665B
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- base body
- base
- strain
- holes
- elastomer
- 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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- 238000005303 weighing Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 15
- 239000000806 elastomer Substances 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 238000009966 trimming Methods 0.000 claims description 4
- 241001669679 Eleotris Species 0.000 abstract description 7
- 239000011159 matrix material Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
- G01G19/042—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles having electrical weight-sensitive devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a sleeper bridge type rail Heng Chenchong sensor, which belongs to the technical field of weighing equipment and comprises an elastomer, a weighing device and connecting wires, wherein the weighing device and the connecting wires are arranged in the elastomer, the elastomer comprises a supporting body, a base body and a base, the supporting body is fixedly connected with a steel rail by a steel rail fastener, the base is fixedly connected with a pre-buried steel plate, the supporting body is connected with the base body by a neck structure, a first deformation joint is formed between the base body and the supporting body at positions corresponding to two sides of the neck structure, the base body is connected with two ends of the base, a second deformation joint is arranged between the base body and the base, a group of strain holes with webs are arranged on the base body, the webs are arranged in the strain holes to divide the strain holes into two blind holes, and the weighing device comprises strain gauges arranged at two sides of the webs and compensation resistances connected with the strain gauges.
Description
Technical Field
The invention belongs to the technical field of weighing equipment, and relates to a track weighing sensor, in particular to a sleeper bridge type track Heng Chenchong sensor.
Background
The traditional rail scale product mainly comprises a mechanical carrier, a weighing sensor and a weighing instrument, wherein the mechanical carrier is arranged on an embedded steel plate of a cement foundation, the weighing sensor is arranged on a fulcrum of a main beam (a railway steel rail is arranged above the main beam) of the mechanical carrier, and the weighing instrument is connected with the weighing sensor. When a train passes through the railway steel rail mechanical carrier, the weight of the wheels acts on the mechanical carrier, the mechanical carrier transmits a force value to the weighing leaflet device, the weighing sensor outputs a millivolt linear signal, and the weighing instrument acquires the output signal of the weighing sensor to calculate the weight information of the vehicle. The transmission direction of the train wheel force value is a steel rail, a mechanical carrier and a sensor in sequence, wherein the mechanical carrier plays a key role in the weighing process, the internal design is complex, and a series of auxiliary structures such as a limiting structure, a resting structure and the like are designed to meet the requirement of high strength. Because the mechanical loader is complex in structure and has a plurality of machine nodes, the mechanical loader becomes the part with the largest maintenance amount in field use, and the safety of the vehicle and the precision of the weighing result of the railway scale can be influenced when one link fails.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the sleeper bridge type rail Heng Chenchong sensor which is simple in structure, high in strength and accuracy, does not need other auxiliary structures, and greatly reduces the maintenance frequency of the mechanical part of the rail scale.
The technical scheme adopted by the invention is as follows:
the sleeper bridge type rail weighbridge weighing sensor comprises an elastomer, a weighing device and connecting wires, wherein the weighing device and the connecting wires are arranged in the elastomer, the steel rail is arranged at the upper end of the elastomer by means of a steel rail fastener, the elastomer is arranged on a cement foundation of a railway by means of a pre-buried steel plate, the key is that the elastomer comprises a supporting body, a base body and a base which are sequentially arranged from top to bottom, the supporting body is fixedly connected with the steel rail, the base is fixedly connected with the pre-buried steel plate, the supporting body is connected with the base body by means of a neck structure, a first deformation joint is formed between the base body and the supporting body at the position corresponding to two sides of the neck structure, two ends of the base body are connected with each other, a second deformation joint is arranged between the base body and the base, a group of strain holes with webs are formed in the strain holes, the webs are separated into two blind holes by the strain holes, the weighing device comprises strain gauges arranged on two sides of the webs, compensation resistors connected with the strain gauges, and threading holes of the connecting wires are respectively arranged on one side of the base body and the web.
The matrix is provided with two strain holes, four strain gauges are arranged in the matrix, the four strain gauges are respectively R1, R2, R3 and R4 and respectively form one bridge arm in a bridge, the four bridge arms are sequentially connected to form a bridge circuit, a zeroing resistor Rx is connected in series in the bridge arm of the R1, and the compensation resistor comprises elastic modulus compensation sheets Rt1 and Rt2 respectively connected between an end A and a positive electrode and between an end B and a negative electrode in the bridge circuit and sensitivity adjustment resistors Rf1 and Rf2 respectively connected between the elastic modulus compensation sheet Rt1 and the positive electrode and between the elastic modulus compensation sheet Rt2 and the negative electrode.
The compensation resistor also comprises elastic modulus trimming resistors Rt1', rt2' which are respectively connected with the two elastic modulus compensation sheets Rt1 and Rt2 in parallel.
The output impedance standard resistor Rg is integrated between the positive electrode and the negative electrode of the bridge circuit.
The lead-out end of the connecting wire on the basal body is provided with a stainless steel waterproof joint and a protection frame positioned at the outer side of the stainless steel waterproof joint, and the connecting wire of the lead-out basal body is also provided with a cable protection sleeve.
The beneficial effects of the invention are as follows: the upper end of the elastic body is directly connected with the steel rail and the steel rail fastener, the lower end of the elastic body is connected with the embedded steel plate, the arrangement of a mechanical loader is omitted, the design appearance of a single sleeper is adopted, a bridge type weighing structure is adopted in the elastic body, the actions of the single sleeper and a weighing sensor are integrated, the structure is simple, no other auxiliary structure exists, the overall strength of the sensor is high, the anti-unbalanced load and anti-impact energy is strong, and the accuracy is high; the first deformation joint between the base body and the supporting body is a reserved space for tilting the two ends of the supporting body and is used as a protection area for deformation of the sensor, and the second deformation joint also provides protection for the deformation of the sensor, so that the base body generates uniform deformation as much as possible, and the weighing accuracy is improved; the weighing device comprises a compensation resistor, so that the influence of other factors in the weighing process is reduced, and the measurement precision is further improved; and the connecting wires penetrate from one side of the base body to be connected with the strain gauge or the compensation resistor at the same side, and are connected with the strain gauge or the compensation resistor at the other side of the web by virtue of the threading holes on the web, so that the setting of the threading holes is reduced, and the internal structure of the base body is optimized.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a front view of an elastomer.
Fig. 4 is a top view of an elastomer.
Fig. 5 is a schematic circuit diagram of the present invention.
In the drawings, 1, an elastomer, 2, a supporting body, 3, a base body, 4, a base, 5, a neck structure, 6, a first deformation joint, 7, a second deformation joint, 8, a web plate, 9, a strain hole, 10, a threading hole, 12, a stainless steel waterproof joint, 13, a protection frame, 14 and a cable protection sleeve, ex+ in the drawings represents a power supply anode, ex-represents a power supply cathode, si+ represents a signal anode and Si-represents a signal cathode.
Detailed Description
The invention relates to a sleeper bridge type rail scale weighing sensor, which comprises an elastic body 1, a weighing device and connecting wires, wherein the weighing device and the connecting wires are arranged in the elastic body 1, a steel rail is arranged at the upper end of the elastic body 1 by means of steel rail fasteners, the elastic body 1 is arranged on a cement foundation of a railway by means of embedded steel plates, the key is that the elastic body 1 comprises a supporting body 2, a base body 3 and a base 4 which are sequentially arranged from top to bottom, the supporting body 2 is fixedly connected with the steel rail, the base 4 is fixedly connected with the embedded steel plates, the supporting body 2 is connected with the base body 3 by means of a neck structure 5, a first deformation joint 6 is formed between the base body 3 and the supporting body 2 at positions corresponding to two sides of the neck structure 5, the base body 3 is connected with two ends of the base 4, a second deformation joint 7 is arranged between the base body 3 and the base 4, a group of strain holes 9 with webs 8 are arranged on the base body 3, the webs 8 are arranged in the strain holes 9 to divide the strain holes 9 into two blind holes, the weighing device comprises compensation resistors which are arranged at two sides of the webs 8 and are connected with the strain gauges, and the wire through holes 10 are arranged on one side of the base body 3 and the web 8.
In the specific embodiment, as shown in fig. 1-5, two strain holes 9 which are symmetrical left and right are arranged on a base body 3, four strain gauges are arranged in the base body 3, the four strain gauges are respectively R1, R2, R3 and R4, a strain gauge R1 and an elastic modulus compensation sheet Rt2 are adhered to the outward side of a web 8 of the strain hole 9 on the left side, and a strain gauge R4 is adhered to the inward side; a strain gauge R2 and an elastic modulus compensation sheet Rt2 are stuck on the outward side of the web 8 of the strain hole 9 on the right side, and a strain gauge R3 is stuck on the inward side; wherein strainometer R1, R2, R3, R4 all set up the central point of web 8 put, install the strainometer in the atress central zone, guarantee to measure accurately, elasticity modulus compensation piece Rt1, rt2 set up respectively in strainometer R1, R2's top, and elasticity modulus compensation piece is closer to the strainometer, and the compensation is more accurate.
The middle position of the upper end of the supporting body 2 is provided with a rail mounting groove, the upper end of the supporting body 2 is also provided with four screw holes positioned at two sides of the rail mounting groove, and as the lower end mounting width of the rail is different, a stop block is respectively arranged at two sides of the rail mounting groove by means of the screw holes, and the rail mounting groove can be compatible with railway rails of different types of 50kg and 60kg in a rail changing groove mode.
The lead-out end of the connecting wire on the matrix 3 is provided with a stainless steel waterproof joint 12 and a protection frame 13 positioned at the outer side of the stainless steel waterproof joint 12, the connecting wire of the lead-out matrix 3 is also provided with a cable protection sleeve 14, the stainless steel waterproof joint 12 prevents water from entering the sensor from influencing the normal measurement of the sensor, the protection frame 13 protects the bent part of the lead-out end of the connecting wire and one side of the matrix 3, the extrusion and the damage of the connecting wire are carried out on the protection matrix 3 and the connecting wire in the transportation and installation processes, meanwhile, the cable protection sleeve 14 is sleeved on the outer side of the connecting wire to form a protection layer on the connecting wire, the abrasion of the connecting wire is prevented, meanwhile, the hardness of the connecting wire is enhanced, the bending angle of the connecting wire is prevented from being too small to be damaged, the damage of the connecting wire is effectively reduced by the stainless steel waterproof joint 12, the protection frame 13 and the cable protection sleeve 14, the normal transmission and the measurement accuracy of the sensor are ensured, and meanwhile, the maintenance frequency of the sensor can be further reduced.
The strain gauges R1, R2, R3 and R4 respectively form one bridge arm in the bridge, four bridge arms are sequentially connected to form a bridge circuit, wherein a zeroing resistor Rx is connected in series in the bridge arm of the R1, the compensation resistor comprises elastic modulus compensation sheets Rt1 and Rt2 respectively connected between an end A and a positive electrode and between an end B and a negative electrode in the bridge circuit, sensitivity adjustment resistors Rf1 and Rf2 respectively connected between the elastic modulus compensation sheet Rt1 and a power supply positive electrode and between the elastic modulus compensation sheet Rt2 and a power supply negative electrode, and the compensation resistor further comprises elastic modulus trimming resistors Rt1', rt2' respectively connected with the two elastic modulus compensation sheets Rt1 and Rt2 in parallel, and an output impedance standard resistor Rg is connected between the positive electrode and the negative electrode of the bridge circuit. The elastic modulus compensation sheet mainly compensates the influence of temperature change on the strain gauge, and avoids the influence of the temperature change on the output of the strain gauge; the sensitivity adjustment resistor adjusts the consistency of the sensor output sensitivity. The strain gauges R1, R2, R3, R4, the zeroing resistor Rx, the elastic modulus compensators Rt1, rt2, and the elastic modulus trimming resistors Rt1', rt2' are all disposed inside the elastic body 1, and the dashed line frame in fig. 5 is an internal circuit of the elastic body 1.
The supporting body 2 is a stress area, the base body 3 is a deformation area, the first deformation joint 6 and the second deformation joint 7 provide protection for the deformation of the supporting body 2 and the base body 3, so that the deformation of the base body 3 is uniform, and the weighing precision is improved.
The sensor provided by the invention adopts a shape design with higher strength, a stress deformation area of the sensor can obtain better deformation, namely, when the sensor is stressed, the deformation area can more accurately obtain a stressed state, so that the sensor can obtain better metering precision, meanwhile, the sensor has better sensor impact energy resistance, better sensor lateral force resistance energy, the strength of the sensor on a steel plate of an installation base is reduced, the middle position of the bottom end of the base 4 is of a concave structure, and the small-area contact prefabricated steel plate is adopted, so that the requirement on flatness is reduced. The system has the advantages of convenient maintenance and overhaul, simple operation, greatly reduced cost for management and maintenance in practical field experimental application, and suitability for enterprises such as large metallurgy, coal, petrochemical industry and the like in China.
Claims (2)
1. Pillow formula track scale weighing sensor, including elastomer (1), set up weighing device and connecting wire in elastomer (1), the rail sets up in elastomer (1) upper end with the help of rail fastener, and elastomer (1) set up on railroad cement basis with the help of pre-buried steel sheet, its characterized in that: the elastic body (1) comprises a supporting body (2), a base body (3) and a base (4) which are sequentially arranged from top to bottom, the supporting body (2) is fixedly connected with a steel rail, the base (4) is fixedly connected with a pre-buried steel plate, the supporting body (2) is connected with the base body (3) through a neck structure (5), a first deformation joint (6) is formed between the base body (3) and the supporting body (2) at positions corresponding to two sides of the neck structure (5), the base body (3) is connected with two ends of the base (4), a second deformation joint (7) is arranged between the base body (3) and the base (4), a group of strain holes (9) with webs (8) are formed in the base body (3), the webs (8) are arranged in the strain holes (9) to divide the strain holes (9) into two blind holes, the weighing device comprises strain gauges arranged at two sides of the webs (8) and compensation resistors connected with the strain gauges, and threading holes (10) for connecting wires are formed in one side of the base body (3) and the webs (8);
the base body (3) is provided with two strain holes (9), the base body (3) is provided with four strain gauges, the four strain gauges are respectively R1, R2, R3 and R4 and respectively form one bridge arm in a bridge, the four bridge arms are sequentially connected to form a bridge circuit, wherein a zeroing resistor Rx is connected in series in the bridge arm of the R1, and the compensation resistor comprises elastic modulus compensation sheets Rt1 and Rt2 respectively connected between an end A and a positive electrode and between an end B and a negative electrode in the bridge circuit, and sensitivity adjustment resistors Rf1 and Rf2 respectively connected between the elastic modulus compensation sheet Rt1 and the positive electrode and between the elastic modulus compensation sheet Rt2 and the negative electrode;
the compensation resistor further comprises elastic modulus trimming resistors Rt1', rt2' which are respectively connected with the two elastic modulus compensation sheets Rt1 and Rt2 in parallel;
the output impedance standard resistor Rg is integrated between the positive electrode and the negative electrode of the bridge circuit.
2. The occipital bridge rail Heng Chenchong sensor of claim 1, wherein: the novel cable connector is characterized in that a stainless steel waterproof connector (12) and a protection frame (13) positioned on the outer side of the stainless steel waterproof connector (12) are arranged at the leading-out end of the connecting wire on the base body (3), and a cable protection sleeve (14) is further arranged on the connecting wire of the leading-out base body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811205062.0A CN109029665B (en) | 2018-10-16 | 2018-10-16 | Pillow type rail Heng Chenchong sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811205062.0A CN109029665B (en) | 2018-10-16 | 2018-10-16 | Pillow type rail Heng Chenchong sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109029665A CN109029665A (en) | 2018-12-18 |
| CN109029665B true CN109029665B (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811205062.0A Active CN109029665B (en) | 2018-10-16 | 2018-10-16 | Pillow type rail Heng Chenchong sensor |
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| Country | Link |
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| CN (1) | CN109029665B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201900004663U1 (en) * | 2019-12-19 | 2021-06-19 | L C Srl | LOAD CELL FOR METALLIC SILOS |
| CN115979402B (en) * | 2023-02-16 | 2023-07-21 | 承德市五岳测控技术有限公司 | Beam-free continuous rail automatic rail balance metering system |
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|---|---|---|---|---|
| CN2110213U (en) * | 1991-12-25 | 1992-07-15 | 济南衡器厂 | Static electronic track weighing apparatus |
| US5734110A (en) * | 1996-10-11 | 1998-03-31 | Kistler-Morse Corporation | Temperature compensated, easily installed bolt-on strain sensor |
| US5844174A (en) * | 1996-08-14 | 1998-12-01 | Sartorius Ag | Electronic balance with guide-rod parallel guide and wire strain gauge corner load sensor |
| US6653578B1 (en) * | 1998-10-20 | 2003-11-25 | Pfister Waagen Bilanciai Gmbh | Track scales with continuous rails and weighing sleepers |
| CN201497557U (en) * | 2009-02-16 | 2010-06-02 | 宁波博达电气有限公司 | Weighing sensor for rail weighbridge |
| CN202869623U (en) * | 2012-09-27 | 2013-04-10 | 福建省莆田市衡力传感器有限公司 | Rail weighbridge sensor |
| CN204405160U (en) * | 2015-02-12 | 2015-06-17 | 福建省莆田市衡力传感器有限公司 | A kind of overlength porous high-precision orbital LOAD CELLS |
| CN104964732A (en) * | 2015-06-30 | 2015-10-07 | 杭州钱江称重技术有限公司 | Double-perpendicular force integrated digital transducer |
| CN205246187U (en) * | 2015-11-23 | 2016-05-18 | 承德市五岳测控技术有限公司 | Tramway weighing apparatus |
| CN206709956U (en) * | 2017-05-08 | 2017-12-05 | 承德市五岳测控技术有限公司 | A kind of automatic scale carrier |
| CN206876273U (en) * | 2017-05-17 | 2018-01-12 | 宁波柯力传感科技股份有限公司 | Cantilever beam digital weighing sensor |
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2018
- 2018-10-16 CN CN201811205062.0A patent/CN109029665B/en active Active
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|---|---|---|---|---|
| CN2110213U (en) * | 1991-12-25 | 1992-07-15 | 济南衡器厂 | Static electronic track weighing apparatus |
| US5844174A (en) * | 1996-08-14 | 1998-12-01 | Sartorius Ag | Electronic balance with guide-rod parallel guide and wire strain gauge corner load sensor |
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| CN206876273U (en) * | 2017-05-17 | 2018-01-12 | 宁波柯力传感科技股份有限公司 | Cantilever beam digital weighing sensor |
| CN208847315U (en) * | 2018-10-16 | 2019-05-10 | 承德市五岳测控技术有限公司 | Rest the head on bridge-type track scale weighing sensor |
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| CN109029665A (en) | 2018-12-18 |
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