CN204881810U - Vehicle -mounted weighing system - Google Patents
Vehicle -mounted weighing system Download PDFInfo
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- CN204881810U CN204881810U CN201520452864.7U CN201520452864U CN204881810U CN 204881810 U CN204881810 U CN 204881810U CN 201520452864 U CN201520452864 U CN 201520452864U CN 204881810 U CN204881810 U CN 204881810U
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- strain gauge
- axletree
- vehicle
- stress
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Abstract
The utility model relates to a vehicle -mounted weighing system. The system includes the axletree, set up the axletree answer force transducer and weighing instrument, answer force transducer and weighing instrument signal connection, answer force transducer to be used for responding to axletree meeting an emergency in the emergence down of bearing a heavy burden to the signal of should meeting an emergency changes into electric signal transmission and gives the weighing instrument, and the weighing instrument calculates the heavy burden of axletree according to this signal of meeting an emergency. The utility model discloses need not to change vehicle structure, measure simple, the convenience of vehicle load, and low in costs.
Description
Technical field
The utility model relates to weighing technology field, refers in particular to
oneplant vehicle-mounted weighing system.
Background technology
Bridges a lot of at present, viaduct are all restricted to the load of vehicle, and directly weigh to the general employing of weighing of vehicle at present, thus limit and use in a lot of occasion.Vehicle-mounted weighing can address this problem, but traditional Onboard weighing device all be unable to do without installs special LOAD CELLS, this just needs to reequip vehicle, the refitting engineer amount that meeting weighs requires is large, also reduce the original security performance of automobile, therefore not changing vehicle original structure, realize again vehicle weighing highlights superior practicality to the utility model simultaneously simultaneously.
Summary of the invention
The utility model provides a kind of vehicle-mounted weighing system for the problem of prior art, and this vehicle-mounted weighing system is implemented simple, and cost is low; Be convenient to promote.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of vehicle-mounted weighing system, comprise axletree, be arranged on the strain gauge of axletree and weighing instrument, strain gauge is connected with weighing instrument signal, the strain that strain gauge occurs under bearing a heavy burden for responding to axletree, and this strain signal is changed into electrical signal transfer to weighing instrument, weighing instrument calculates the heavy burden of axletree according to this strain signal.
When strain gauge is set to one, this strain gauge is arranged at the middle part of axletree; When strain gauge is two, strain gauge is positioned at the two ends of axletree, and is positioned at outside two stress points on axletree, and strain gauge is connected with weighing instrument.
Wherein, axletree comprises single shaft or axle group coupling shaft, and strain gauge obtains the weight signal of vehicle by the deformation of measuring vehicle axletree or axle group coupling shaft.
Wherein, strain gauge comprises the strain gauge of foil strain gauge formula or the strain gauge of the micro-molten formula of glass or the strain gauge of thick semiconductor membrane type or the strain gauge of diffuse si formula.
Wherein, each axle of vehicle or axle group coupling shaft are by forming an axle sensor of independently weighing after mount stress sensor, by with the weight amount comparison of wheel weighing instrument after obtain the ratio that the stress signal of axletree and axletree bear a heavy burden, the strain gauge on all axletrees is connected in series to multichannel weighing instrument cumulative display general assembly (TW).
Wherein, comprise the strain gauge be arranged on rear axle group coupling shaft, through weighing instrument display weight.
Wherein, that described strain gauge comprises the fixed beam that is positioned at two ends and is positioned at middle part and the stress of deformation can concentrate beam, stress concentrates beam to be fixed with strainometer.
Further, stress concentrates the V-shaped setting of beam, and thickness to be set to middle little two ends large; Described strainometer is arranged on the middle part that stress concentrates beam.
Further, be arranged with flexible shell outside described elastic, flexible shell can be rubber shell, corrugated tube etc.
Further, be provided with signal wire between described strain gauge and weighing instrument, strain gauge is connected with weighing instrument by signal wire.
Further, described strain gauge is connected with wireless signal transmitting device, and weighing instrument is connected with wireless signal receiver.Stress signal is externally launched by wireless signal transmitting device by strain gauge, and weighing instrument receives stress signal by wireless signal receiver.
The beneficial effects of the utility model are:
1: prevent truck vehicle from transshipping and cross the traffic accidents, the pavement damage that bring.2: the transport dispute brought because of weight facilitating carrier and transporter.3: car owner can know complete vehicle weight at any time and not break rules and regulations before setting out on a journey.4: carrier or government can carry out network management to weight.
By the axletree of vehicle or axle group, the moment of flexure stress strain gauge under weight load effect records the utility model, all axletrees of vehicle all load onto strain gauge, is equivalent to axletree is loaded on strain gauge as elastic body and becomes novel automobile shafts sensor.Ground in the face of wheel anchorage force by automobile shafts sensor measurement out, then the signal of each automobile shafts sensor is sent into special weighing instrument with connecting after wheel weighing instrument comparison, carries out showing, Internet Transmission and control.
Accompanying drawing explanation
Fig. 1 is of the present utility model
oneplant structural principle schematic diagram.
Fig. 2 is the structural representation of a kind of strain gauge of the present utility model.
Fig. 3 is the schematic diagram at the another kind of visual angle of Fig. 2.
Reference numeral is:
1---axletree; 2---weighing instrument; 3---strain gauge; 4---signal wire;
31---fixed beam; 32---stress concentrates beam; 33---fixed orifice; 5---strainometer;
6---elastic shell; 7---wheel; 8---stress point.
Embodiment
For the ease of the understanding of those skilled in the art, be further described the utility model below in conjunction with embodiment and accompanying drawing, the content that embodiment is mentioned is not to restriction of the present utility model.See Fig. 1 to Fig. 3, below in conjunction with accompanying drawing, the utility model is described in detail.
Embodiment 1: a kind of vehicle-mounted weighing system, comprises axletree 1, strain gauge 3 and weighing instrument, and each axletree 1 is provided with strain gauge 3, and when strain gauge 3 is set to one, this strain gauge is arranged at the center of axletree; When strain gauge 3 is two, two strain gauges are all between two stress points of axletree, and strain gauge 3 is connected with weighing instrument 2 signal.
Strain gauge 5 is mainly fixed on the axletree 1 of vehicle by the technical program, axletree 1 is when bearing vehicle load, certain deformation can be there is according to load, and this deformation causes the signal intensity of strain gauge 5, strain gauge 5 transmits stress signal to weighing instrument 2, and weighing instrument 2 calculates load according to STRESS VARIATION.Here weighing instrument 2 is weight display instrument, and only needing stress signal is converted to weight and shows, is prior art.
When concrete mount stress sensor 3, install according to vehicle, as at each single shaft of vehicle or axle group coupling shaft by a composition axle sensor of independently weighing after mount stress sensor 5, and after independently demarcating output signal, the strain gauge of all axletrees is connected in series to instrument display weight, makes car load produce uneven loading error.Or only need on rear axle group coupling shaft mount stress sensor 5, show weight through weighing instrument 2.
When strain gauge 3 is set to one, this strain gauge is arranged at the middle part of axletree 1; When strain gauge 3 is two, strain gauge 3 is positioned at the two ends of axletree 1, and is positioned at outside two stress points 8 on axletree 1, and strain gauge is connected with weighing instrument.
Wherein, that strain gauge comprises the fixed beam that is positioned at two ends and is positioned at middle part and the stress of deformation can concentrate beam, stress concentrates beam to be fixed with strainometer.Strain gauge is fixed on axletree by the fixed beam at two ends, because the deformation under axletree load condition is continuous print, and deformation quantity in unit distance is less, and strain gauge is accumulated by the deformation residual quantity of two ends by two places, thus form a comparatively large deformation amount, stress signal is amplified.
Further, two fixed beams 31 are provided with at least one fixed orifice 33 or at least one weld part.
After arranging fixed orifice 33, the fixed form that can be bolted is fixed on axletree 1, directly can certainly be welded on axletree 1 by the mode of welding by arranging weld part.
Further, described stress concentrates the V-shaped setting of beam 32, and thickness to be set to middle little two ends large; Described strainometer 5 is arranged on the middle part that stress concentrates beam 32.
Stress concentrates beam 32 to be set to V-arrangement substantially, and middle angle is 30 to 60 degree, is preferably 45 degree.And stress concentrates the thickness of beam 32 to be the large structures in middle little two ends, therefore stress concentrates the easy stressed generation deformation in the middle part of beam 32, and deformation quantity is larger.
Further, described stress is concentrated outside beam 32 and is arranged with elastic shell 6 or flexible outer layer.
After arranging elastic shell 6, by built-in for strain gauge 5, avoid being subject to ectocine.In the technical program, outside elastic 32, be arranged with rubber layer.Also can be metal cap.
Further, be provided with signal wire 4 between described strain gauge 5 and weighing instrument 2, strain gauge 5 is connected with weighing instrument 2 signal by signal wire 4.
Further, described strain gauge 5 is connected with wireless signal transmitting device, and weighing instrument 2 is connected with wireless signal receiver.Stress signal is externally launched by wireless signal transmitting device by strain gauge 5, and weighing instrument 2 receives stress signal by wireless signal receiver.
In actual applications, can modelled signal line 4 or wireless signaling mechanisms according to actual needs.Wireless signaling mechanisms can be blue-tooth device, infrared facility etc.
Further, described strain gauge 5 is the strain gauge 5 of foil strain gauge formula, the strain gauge 5 of the micro-molten formula of glass, the strain gauge 5 of thick semiconductor membrane type or the strain gauge 5 of diffuse si formula.
Strain gauge 5 can be selected according to actual needs, and the technical program, in enforcement, is preferably above-mentioned several strain gauges 5.
Embodiment 2: a kind of vehicle-mounted Weighing method, comprises the following steps:
1, vehicle is unloaded, and the surface of contact on all wheels and ground is maintained at the same horizontal plane, and wheel is positioned on counterweight table;
2, each axletree installs at least one strain gauge, that strain gauge comprises the fixed beam that is positioned at two ends and is positioned at middle part and the stress of deformation can concentrate beam, stress concentrates beam to be fixed with strainometer, and strain gauge is connected with weighing instrument; Wherein strain gauge is the micro-molten formula strain gauge of glass;
3, the stress signal of strain gauge when record is unloaded;
4, vehicle progressively increases load, and the weight change of counterweight table display corresponding under recording axletree and the stress signal change of this axletree, calculate the weight stress coefficient of axletree;
5, according to weight stress coefficient and the stress signal of every root axletree, total heavy burden of whole vehicle is calculated.
The heavy burden of the technical program by adopting the STRESS VARIATION measuring axletree to test car load, the whole heavy burden of vehicle all concentrates on axletree; On axletree after mount stress sensor, be equivalent to axletree as elastic body mount stress sensor again, thus form novel automobile shafts strain gauge; Counterweight table can monitor out the change of each bearing by weight, and weighing instrument can monitor out the change of stress signal simultaneously, and the change of this weight can correspond to the change of stress signal, thus draws the weight stress coefficient of axletree; Be specially: K=(g1-g2)/(c1-c2); G1, g2 are expressed as the weight change of first and second time, and c1, c2 are expressed as the stress signal change of first and second corresponding time.Certainly, in order to Exact Solution, can the method for average be adopted, repeatedly solve and obtain K1, K2, K3.。。。。。Then calculating mean value.
The technical program, when implementing, utilizes axletree to form novel strain gauge as elastic body, secondly, adopts the micro-molten strain gauge of glass, can obtain larger stress signal, be convenient to monitoring; Simultaneously, because whole axletree is an elastic body, when load increases, deformation quantity in unit length is small, adopt after strain gauge, deformation quantity corresponding to the distance between two fixed parts is increased, thus increases several times deformation quantity accordingly, and then add stress signal, be conducive to detecting and the measuring accuracy of stress signal.
Wherein preferably, strain gauge is preferably the micro-molten formula strain gauge of glass: the micro-molten formula strain gauge of glass makes and comprises:
Step 1; Silk screen printing glass paste on cleaned metal elastic gonosome.
Step 2; Silicon strain gage is installed in the position printing glass paste at elastic body.
Step 3; Sensor is sent into high temperature tunnel furnace, completes the bonding of silicon strain gage and metal elastic gonosome.
Step 4; With gold wire ball welding, silicon strain gage is formed resistance bridge by connection terminal.
Strainometer is connected with signal wire, and strainometer externally exports stress signal by signal wire.
Weighing system in embodiment 1 all can be applicable to embodiment 2.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (6)
1. a vehicle-mounted weighing system, is characterized in that: comprise axletree, be arranged on the strain gauge of axletree and weighing instrument, strain gauge is connected with weighing instrument signal; When the strain gauge on axletree is set to one, this strain gauge is arranged at the middle part of axletree; When the strain gauge on axletree is two, strain gauge is positioned at the two ends of axletree, and is positioned at outside two stress points on axletree, and strain gauge is connected with weighing instrument signal.
2. a kind of vehicle-mounted weighing system according to claim 1, is characterized in that: axletree comprises single shaft or axle group coupling shaft.
3. a kind of vehicle-mounted weighing system according to claim 1, is characterized in that: strain gauge comprises the strain gauge of foil strain gauge formula or the strain gauge of the micro-molten formula of glass or the strain gauge of thick semiconductor membrane type or the strain gauge of diffuse si formula.
4. a kind of vehicle-mounted weighing system according to claim 1, is characterized in that: that described strain gauge comprises the fixed beam that is positioned at two ends and is positioned at middle part and the stress of deformation can concentrate beam, and stress concentrates beam to be fixed with strainometer.
5. a kind of vehicle-mounted weighing system according to claim 4, is characterized in that: stress concentrates the V-shaped setting of beam, and thickness to be set to middle little two ends large; Described strainometer is arranged on the middle part that stress concentrates beam.
6. a kind of vehicle-mounted weighing system according to claim 5, is characterized in that: described stress is concentrated outside beam and is arranged with flexible shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520452864.7U CN204881810U (en) | 2015-06-29 | 2015-06-29 | Vehicle -mounted weighing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520452864.7U CN204881810U (en) | 2015-06-29 | 2015-06-29 | Vehicle -mounted weighing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204881810U true CN204881810U (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520452864.7U Active CN204881810U (en) | 2015-06-29 | 2015-06-29 | Vehicle -mounted weighing system |
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| CN (1) | CN204881810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932064A (en) * | 2017-03-29 | 2017-07-07 | 徐州赫思曼电子有限公司 | A kind of self-discharging vehicle weighing device and its method of work |
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2015
- 2015-06-29 CN CN201520452864.7U patent/CN204881810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932064A (en) * | 2017-03-29 | 2017-07-07 | 徐州赫思曼电子有限公司 | A kind of self-discharging vehicle weighing device and its method of work |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 523000 Guangdong city of Dongguan province Sheng Machong Town Industrial Park of Guangdong hualanhai electric Polytron Technologies Inc Patentee after: GUANGDONG SOUTH CHINA SEA ELECTRONIC MEASURING TECHNOLOGY CO., LTD. Address before: 523136 Guangdong city of Dongguan province Sheng Machong Town Industrial Park Dongguan southchinasea Electronics Co. Ltd Patentee before: Dongguan Hualanhai Electronics Co.,Ltd. |