CN110530482A - A kind of displacement-type vehicle load sensor - Google Patents
A kind of displacement-type vehicle load sensor Download PDFInfo
- Publication number
- CN110530482A CN110530482A CN201910675689.0A CN201910675689A CN110530482A CN 110530482 A CN110530482 A CN 110530482A CN 201910675689 A CN201910675689 A CN 201910675689A CN 110530482 A CN110530482 A CN 110530482A
- Authority
- CN
- China
- Prior art keywords
- extensible member
- vehicle frame
- vehicle
- displacement
- stress value
- 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.)
- Pending
Links
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
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/02—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a helical spring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of displacement-type vehicle load sensors, comprising: vehicle frame, for passing through one side planes carry vehicle institute freight；Vehicle bridge, for being connected by suspension with the vehicle frame, wheel is installed at both ends；Extensible member is connected by one end of the extensible member with the vehicle bridge, and the other end of the extensible member, which does not stress in the non-stress of the vehicle frame with the bottom of the vehicle frame, to be contacted, for the deflection of the vehicle frame to be converted to the stress value of the extensible member；The stress value of the extensible member is received for the bottom of the extensible member to be arranged in by force acquisition device；Processing unit obtains the stroke of the extensible member according to the stress value for obtaining the stress value, and using the stroke as the deflection of the vehicle frame, the loading capacity of the vehicle frame is obtained according to the deflection.A kind of displacement-type vehicle load sensor is provided, the problem that existing sensor accuracy class is low, is easy to be damaged is solved.
Description
Technical field
The present invention relates to the technical field of improvement of vehicle load sensor more particularly to a kind of displacement-type vehicle load to sense
Device.
Background technique
In carrier, for the safety for guaranteeing Road Transportation, the loading mass of vehicle generally has stringent regulation,
It is overweight not only can to vehicle safety, there are hidden troubles, and to life safety there is also greatly threaten；Especially loading
Vehicle, if overweight may cause traffic safety hidden danger.
Due to the technological progress of sensing technology, market is gradually moved towards applied to the load measuring sensor on vehicle.Currently, carrying
Retransmitting sensor is mostly the displacement sensor for being used to measure distance between vehicle frame and vehicle bridge, generallys use magnetic inductive displacement sensing
Sensor body is mounted in the vehicle bridge of automobile by device by mounting structure, and the measuring head of sensor then directly with automobile
Vehicle frame abuts against.
However, automobile during traveling, inevitably encounters situation of jolting, it at this time will between vehicle frame and vehicle bridge
Overshoot phenomenon occurs, the distance between vehicle bridge and vehicle frame sharply can be compressed or be extended in a short time, this inevitably results in rigidity
Impact extruded of the sensor between vehicle bridge and vehicle frame by moment is set, and deforming so as to cause mounting structure can not be accurate
Measurement.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of displacement-type vehicle load sensor, it is desirable to provide a kind of displacement-type
Vehicle load sensor solves the problem that existing sensor accuracy class is low, is easy to be damaged.Specific technical solution is as follows:
In order to achieve the above objectives, the embodiment of the invention provides a kind of displacement-type vehicle load sensors, comprising:
Vehicle frame, for passing through one side planes carry vehicle institute freight；
Vehicle bridge, for being connected by suspension with the vehicle frame, wheel is installed at both ends；
Extensible member is connected by one end of the extensible member with the vehicle bridge, and the other end of the extensible member is in the vehicle
It does not stress and contacts with the bottom of the vehicle frame when the non-stress of frame, for the deflection of the vehicle frame to be converted to the extensible member
Stress value；
The stress value of the extensible member is received for the bottom of the extensible member to be arranged in by force acquisition device；
Processing unit obtains the stroke of the extensible member according to the stress value for obtaining the stress value, by institute
Deflection of the stroke as the vehicle frame is stated, the loading capacity of the vehicle frame is obtained according to the deflection.
In a kind of implementation of the invention, the extensible member is spring.
In a kind of implementation of the invention, it is described by force acquisition device be pressure sensor.
In a kind of implementation of the invention, the stress value is obtained, the extensible member is obtained according to the stress value
Formula used by stroke are as follows:
F=C1x
Wherein, F is the stress value, C1For the elastic module parameter of spring, x is telescopic spring amount.
In a kind of implementation of the invention, the processing unit is single-chip microcontroller.
In a kind of implementation of the invention, formula used by the loading capacity for obtaining the vehicle frame according to the deflection
Are as follows:
G=C2x
Wherein, G is the loading capacity, C1For the elastic module parameter of vehicle frame, x is telescopic spring amount.
Using a kind of displacement-type vehicle load sensor provided in an embodiment of the present invention, it is connect by vehicle frame with vehicle bridge, then
It is connected by one end of extensible member with vehicle bridge, the other end of extensible member does not stress and connects with the bottom of vehicle frame in the non-stress of vehicle frame
The deflection of vehicle frame, is converted to the stress value of extensible member by touching；It is concurrent by the stress value for being received extensible member by force acquisition device
It send to processing unit, by processing unit, the stroke of extensible member is obtained according to stress value, using stroke as the deformation of vehicle frame
Amount obtains the loading capacity of vehicle frame according to deflection.
Detailed description of the invention
Fig. 1 is a kind of structure chart of displacement-type vehicle load sensor in the embodiment of the present invention.
Fig. 2 is a kind of circuit diagram of displacement-type vehicle load sensor in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As shown in Figure 1, providing a kind of displacement-type vehicle load sensor, comprising:
Vehicle frame 1, for passing through one side planes carry vehicle institute freight；
Vehicle bridge 2, for being connected by suspension with the vehicle frame 1, wheel is installed at both ends；
Extensible member 3 is connected by one end of the extensible member with the vehicle bridge 2, and the other end of the extensible member is described
It does not stress and contacts with the bottom of the vehicle frame 1 when 1 non-stress of vehicle frame, for the deflection of the vehicle frame 1 to be converted to described stretch
The stress value of contracting part 3；
The stress value of the extensible member 3 is received for the bottom of the extensible member 3 to be arranged in by force acquisition device 4；
Processing unit obtains the stroke of the extensible member 3 according to the stress value for obtaining the stress value, will
Deflection of the stroke as the vehicle frame 1, the loading capacity of the vehicle frame 1 is obtained according to the deflection.
It is understood that deformation occurs for meeting when 1 stress of vehicle frame pushes for extensible member 3, displacement, the present invention are generated
Specific implementation in, the extensible member 3 be spring.
It is understood that the relationship of the deflection generated and stress is to be in after spring stress when extensible member 3 is spring
Functional relation, specifically, obtaining the stress value, used according to the stroke that the stress value obtains the extensible member 3
Formula are as follows:
F=C1x
Wherein, F is the stress value, C1For the elastic module parameter of spring, x is telescopic spring amount.
The elastic module parameter C of spring1There is relationship with the material of spring itself, is called stiffness factor, the i.e. coefficient of stiffiness (bullet
Property coefficient), it describes the size of produced elastic force when unit deformation quantity.K value is big, and the power for illustrating that deformation unit length needs is big,
Spring " tough " in other words.Stiffness factor is also known as stiffness coefficient or the coefficient of stiffiness.Stiffness factor is numerically equal to spring elongation
Elastic force when (or shortening) unit length.Indicate an attribute of spring, the material of its numerical value and spring, spring wire it is thick
Carefully, the diameter of spring ring, the number of turns of unit length and the original length of spring are related.Longer, the unit in one clock spring of other conditions
The number of turns of length is more, and k value is smaller.K is also related with temperature, one timing of other conditions, the bigger of the lower k of temperature
It should be noted that when 3 stress of extensible member push when, stress can by being measured by force acquisition device 4,
Specifically, be pressure by force acquisition device 4 be pressure sensor, then the stress value of pressure sensor acquisition value and spring is identical
For F.Pressure sensor is connected with processing unit, and pressure value is sent to processing unit at any time.
In specific implementation, formula used by the loading capacity for obtaining the vehicle frame 1 according to the deflection are as follows:
G=C2x
Wherein, G is the loading capacity, C1For the elastic module parameter of vehicle frame, x is telescopic spring amount.
In a kind of implementation, the processing unit is single-chip microcontroller.It can be 51 single-chip microcontrollers, PIC, STM32 etc., the present invention
Embodiment is not specifically limited herein.
In addition, processing unit can also connect warning device, specific warning device can be thought as buzzer, when receiving
Actuation of an alarm is made when the alarm signal that processing unit is sent；It can be powered by dry cell to single-chip microcontroller.
Calculation formula be F=k (L-L0) L0 be spring raw footage L be apply pulling force F when length
One of spring can be hauled with weight beam to measure pulling force F and length L at this time and then measure bullet
Length L0 when spring natural length, which brings formula above into, can find out stiffness factor K i.e. coefficient of elasticity.
The coefficient of elasticity k of spring and the diameter of spring, the number of active coils of the line footpath of spring, the material of spring, spring are related.
Physical relationship is: it is inversely proportional with the diameter of spring ring, elasticity with the material of spring directly proportional to 4 powers of the line footpath of spring
Modulus is directly proportional, is inversely proportional with the number of active coils of spring.
C1=F/ λ=Gd4/8D23=Gd/8C3n
Wherein, C1For coefficient of elasticity, F: load suffered by spring；λ: spring generated deflection in F loaded；G:
The shear modulus of spring material；(steel is 8 × 104MPa, and bronze is 4 × 104MPa) d: wire diameter；D2: spring diameter；N:
Active spring coils number；C: spring is curled up than (also known as spring index).
From the above equation, we can see that.When other conditions are identical, C1It is worth smaller spring, rigidity is bigger, that is, spring is harder；It is on the contrary
It is then softer.It should also be noted that C1It is worth smaller, the stress difference of spring medial and lateral is more greatly different, and it is more difficult to roll, and stock utilization is also
Lower, and biggish torsional stress will be caused at work.So when designing spring, general provision C1>=4, and work as spring wire
Diameter d is got over hour, C1Value more preferably takes large values.
In fact above this formula be according to micro- section of spring wire ds torque suspension retrotorsion d θ, to generate micro-deformation d λ,
D λ is integrated again and obtains coil spring silk helical spring generated deflection after F loaded.
In order to further increase through warning reminding user, achievees the purpose that watchful people around, be additionally provided with warning device
Specially combined aural and visual alarm is connected with processing unit.Combined aural and visual alarm as shown in Figure 2 includes: the 6th resistance R7, the 7th resistance
R8, diode VD1, triode VT2, Light-emitting diode LED 1, loudspeaker IC2；The output end of main controller 3 passes through the 6th resistance R7
It is connected with the cathode of diode VD1, the anode of diode VD1 is connected with the base stage of triode VT2, the emitter of triode VT2
It is connected with the other end of detector, the collector of triode VT2 is connected with 1 cathode of Light-emitting diode LED, Light-emitting diode LED 1
Anode is connected by the 7th resistance R8 with operating voltage, loudspeaker IC2 be connected to the collector of triode VT2, operating voltage it
Between.
This it should be noted that collect rotational angle it is excessive when, then it represents that the goods weight in front frame 1
It is excessive, belong to overload behavior, carries out warning reminding.
In addition, it is buzzer that warning device, which can also be, report is made when receiving the alarm signal of master controller transmission
Alert movement；Dry cell and casing for dry batteries are mainly powered to single-chip microcontroller.The foregoing is merely illustrative of the preferred embodiments of the present invention,
It is not intended to limit the scope of the present invention.It is done within the spirit and principles of the present invention it is any modification, equally replace
It changes, improve, be included within the scope of protection of the present invention.
Claims (6)
1. a kind of displacement-type vehicle load sensor characterized by comprising
Vehicle frame (1), for passing through one side planes carry vehicle institute freight；
Vehicle bridge (2), for being connected by suspension with the vehicle frame (1), wheel is installed at both ends；
Extensible member (3) is connected by one end of the extensible member with the vehicle bridge (2), and the other end of the extensible member is described
It does not stress and contacts with the bottom of the vehicle frame (1) when vehicle frame (1) non-stress, for being converted to the deflection of the vehicle frame (1)
The stress value of the extensible member (3)；
By force acquisition device, for the stress value for receiving the extensible member (3) in the bottom of the extensible member (3) to be arranged；
Processing unit obtains the stroke of the extensible member (3) according to the stress value, by institute for obtaining the stress value
Deflection of the stroke as the vehicle frame (1) is stated, the loading capacity of the vehicle frame (1) is obtained according to the deflection.
2. a kind of displacement-type vehicle load sensor according to claim 1, which is characterized in that the extensible member (3) is
Spring.
3. a kind of displacement-type vehicle load sensor according to claim 2, which is characterized in that described by force acquisition device
For pressure sensor.
4. a kind of displacement-type vehicle load sensor according to claim 1-3, which is characterized in that described in acquisition
Stress value, according to formula used by the stroke of the stress value acquisition extensible member (3) are as follows:
F=C1x
Wherein, F is the stress value, C1For the elastic module parameter of spring, x is telescopic spring amount.
5. a kind of displacement-type vehicle load sensor according to claim 1, which is characterized in that the processing unit is single
Piece machine.
6. a kind of displacement-type vehicle load sensor according to claim 4, which is characterized in that obtained according to the deflection
Obtain formula used by the loading capacity of the vehicle frame (1) are as follows:
G=C2x
Wherein, G is the loading capacity, C1For the elastic module parameter of vehicle frame, x is telescopic spring amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675689.0A CN110530482A (en) | 2019-07-25 | 2019-07-25 | A kind of displacement-type vehicle load sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675689.0A CN110530482A (en) | 2019-07-25 | 2019-07-25 | A kind of displacement-type vehicle load sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110530482A true CN110530482A (en) | 2019-12-03 |
Family
ID=68662000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910675689.0A Pending CN110530482A (en) | 2019-07-25 | 2019-07-25 | A kind of displacement-type vehicle load sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110530482A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653986A (en) * | 2020-06-22 | 2020-09-11 | 广州百畅信息科技有限公司 | Rubber electric wire peeling device for electric power construction |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050023065A1 (en) * | 2003-07-31 | 2005-02-03 | Texas Instruments Incorporated | Occupant weight sensor for vehiclular seats, method for making and system therefor |
| CN104006871A (en) * | 2014-06-05 | 2014-08-27 | 深圳市信为科技发展有限公司 | Vehicle load measurement displacement sensor |
| CN203869760U (en) * | 2014-06-05 | 2014-10-08 | 深圳市信为科技发展有限公司 | Displacement sensor for vehicle carrying capacity measurement |
| CN104568096A (en) * | 2014-12-23 | 2015-04-29 | 潍柴动力股份有限公司 | Vehicle with leaf spring suspension as well as weight measuring system and weight measuring method of vehicle |
| CN204506682U (en) * | 2015-02-11 | 2015-07-29 | 李晓刚 | Resistance-type vehicle load sensor |
| CN104842856A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Vehicle self-weighing system and corresponding vehicle |
| CN105157803A (en) * | 2015-09-30 | 2015-12-16 | 李晓刚 | Vehicle load capacitance-type sensor |
| CN205562006U (en) * | 2016-01-05 | 2016-09-07 | 上海时焦实业发展有限公司 | Vehicle load intelligence dynamic measurement displacement sensor |
| CN206945118U (en) * | 2016-12-13 | 2018-01-30 | 惠州比亚迪电池有限公司 | A kind of vehicle-mounted load measuring device |
-
2019
- 2019-07-25 CN CN201910675689.0A patent/CN110530482A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050023065A1 (en) * | 2003-07-31 | 2005-02-03 | Texas Instruments Incorporated | Occupant weight sensor for vehiclular seats, method for making and system therefor |
| CN104006871A (en) * | 2014-06-05 | 2014-08-27 | 深圳市信为科技发展有限公司 | Vehicle load measurement displacement sensor |
| CN203869760U (en) * | 2014-06-05 | 2014-10-08 | 深圳市信为科技发展有限公司 | Displacement sensor for vehicle carrying capacity measurement |
| CN104842856A (en) * | 2014-12-19 | 2015-08-19 | 北汽福田汽车股份有限公司 | Vehicle self-weighing system and corresponding vehicle |
| CN104568096A (en) * | 2014-12-23 | 2015-04-29 | 潍柴动力股份有限公司 | Vehicle with leaf spring suspension as well as weight measuring system and weight measuring method of vehicle |
| CN204506682U (en) * | 2015-02-11 | 2015-07-29 | 李晓刚 | Resistance-type vehicle load sensor |
| CN105157803A (en) * | 2015-09-30 | 2015-12-16 | 李晓刚 | Vehicle load capacitance-type sensor |
| CN205562006U (en) * | 2016-01-05 | 2016-09-07 | 上海时焦实业发展有限公司 | Vehicle load intelligence dynamic measurement displacement sensor |
| CN206945118U (en) * | 2016-12-13 | 2018-01-30 | 惠州比亚迪电池有限公司 | A kind of vehicle-mounted load measuring device |
Non-Patent Citations (2)
| Title |
|---|
| 李小燕 等: "《汽车底盘构造与维修》", 30 April 2015 * |
| 齐浩然: "《经典科学系列 力的疯狂故事》", 31 May 2015 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111653986A (en) * | 2020-06-22 | 2020-09-11 | 广州百畅信息科技有限公司 | Rubber electric wire peeling device for electric power construction |
| CN111653986B (en) * | 2020-06-22 | 2021-04-20 | 广州百畅信息科技有限公司 | Rubber electric wire peeling device for electric power construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103278229B (en) | Helicopter weighing measurement device and helicopter center of gravity measurement method | |
| CN102003973A (en) | Wireless passive measuring method and circuit | |
| CN202782852U (en) | Vehicle load self measuring device and car | |
| CN201239931Y (en) | Digital display torque wrench with wireless transmission function | |
| CN110530482A (en) | A kind of displacement-type vehicle load sensor | |
| CN106153113B (en) | Sensor module for structural body health detection | |
| WO2018214228A1 (en) | Double-hole cantilever beam strain gauge dynamic electronic small unmanned vehicle scale | |
| CN105873789B (en) | Device for carrying out abrasion monitoring to touching line | |
| CN206615204U (en) | A kind of brake pedal opening amount signal harvester and master cylinder | |
| CN201964897U (en) | Wireless passive measuring circuit | |
| CN105253019B (en) | A kind of cargo vehicle axle load method of real-time and device | |
| CN207636163U (en) | A kind of axis load detection device | |
| CN109687764A (en) | A kind of energy collecting device for the power supply of wheel wireless sensor | |
| CN107255507B (en) | The passive weighing detection system of onboard wireless and its detection method | |
| CN206321324U (en) | A kind of flat meausring apparatus | |
| CN110530481A (en) | A kind of angled type vehicle load sensor | |
| CN205711728U (en) | A kind of board-like retractor device of comb and safety monitoring system | |
| CN208520454U (en) | Bar shaped stress-type dynamic vehicle weighing device | |
| CN103528724A (en) | Integrated axial force and torque sensor for polished rods of rod-pumped well | |
| CN211904496U (en) | Combined type high-voltage sensor with high sensitivity | |
| CN211576332U (en) | Weighing sensor and truck | |
| CN208476457U (en) | Force snesor with automatic calibration function | |
| CN103010982A (en) | Method for judging overload of tower crane and tower body top inclination diagnosis device for tower crane | |
| CN206974591U (en) | A kind of power hammers sensor into shape | |
| TWI283376B (en) | Method and system for traffic monitoring against speeding and overloading using optical fiber displacement gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191203 |
|
| RJ01 | Rejection of invention patent application after publication |