CN106338304A - Pressure and ground strength combined force measuring device - Google Patents
Pressure and ground strength combined force measuring device Download PDFInfo
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- CN106338304A CN106338304A CN201610470602.2A CN201610470602A CN106338304A CN 106338304 A CN106338304 A CN 106338304A CN 201610470602 A CN201610470602 A CN 201610470602A CN 106338304 A CN106338304 A CN 106338304A
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- force measuring
- spherical shell
- pressure
- cylinder
- ground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a pressure and ground strength combined force measuring device and belongs to the vehicle-mounted sensor technical field. The main objective of the invention is to solve the problem that a long time is taken by an automobile to detect ground strength. The pressure and ground strength combined force measuring device is characterized in that the pressure and ground strength combined force measuring device comprises an elastic body assembly, a strain gauge, a spherical shell and a ground strength sensor force measuring mechanism; the spherical shell is provided with a cylindrical cavity and a bottom groove; the elastic body assembly comprises a cylinder and silica gel plates; the center of the external surface of the cylinder is provided with an annular groove; the upper end and lower end of the cavity as well as the annular groove are filled with the silica gel plates; a supporting plate is provided with a hemispherical cavity and a countersunk head-type circular hole; the spring pin force measuring mechanism comprises a sensor, a compression spring, a guide column plate, a force measuring pin and a force measuring pin cover plate; the sensor is fixed in the bottom groove; the upper end of the compression spring sleeves the guide column plate; and the lower end of the compression spring is located in the force measuring pin. The pressure and ground strength combined force measuring device of the invention has the advantages of compact structure, small size and short detection time, and is suitable for engineering vehicles, special vehicles, military launching vehicles and the like.
Description
Technical field
The invention belongs to onboard sensor technical field is and in particular to a kind of come measuring vehicle weight and the sensor of surface soil intensity by the power that motorcar electric cylinder or hydraulic cylinder produce.
Background technology
At present on automobile, the sensor of detection vehicle weight and surface soil intensity, although the sensor of sense weight is more, but does not all detect the function of ground intensity simultaneously.And the strong instrument in current ground completes the time that one-time detection will be about more than 250s, the time of cost is longer.
Content of the invention
The purpose of the present invention be aiming at above-mentioned weak point and provide that a kind of structure is simple, small volume, easy for installation, detection time be short and sensor that can simultaneously detect vehicle weight and surface soil intensity.
The technical solution of the present invention is: a kind of pressure and ground strong combine device for measuring force it is characterised in that: include elastomeric components, spool holder assembly, spherical shell, strong sensor force measuring machine, gripper shoe, foil gauge and temperature sensor；Described spherical shell is provided with the tapped circular cylindrical cavity in bottom, and bottom is provided with groove, is provided with spherical shell wire casing between circular cylindrical cavity and groove；Described elastomeric components include can intercalation enter in spherical shell cylinder, silica gel plate, cylinder is provided with installs cavity and the cylinder wire casing with the cooperation of spherical shell wire casing, it is provided with cannelure in the middle part of cylindrical outer surface, outer surface bottom is provided with external screw thread, and silica gel plate is filled in installation cavity upper/lower terminal and cannelure；Foil gauge is arranged on cylinder cannelure cell wall, and temperature sensor is arranged in cylinder installation cavity body；Gripper shoe central upper offers hemisphere die cavity, and bottom offers countersunk head type circular hole；The strong sensor force measuring machine in ground includes pressure transducer, compression spring, guide pillar plate, dynamometry pin and dynamometry pin cap plate, pressure transducer is fixed in spherical shell bottom groove, dynamometry pin cap plate is arranged on countersunk head type circular hole outer end, compression spring upper end is sleeved on guide pillar plate, lower end is located in dynamometry pin, dynamometry pin is the tubular construction of lower end closed, and upper end is provided with the convex edge of radial direction, and dynamometry pin passes through dynamometry pin cap plate；Described elastomeric components and spool holder assembly pass through to be threadedly coupled together；Spherical shell is fixing on the supporting plate by thread connection；Elastomeric components and foil gauge constitute force cell.
It is provided with sealing ring with the contact surface of dynamometry pin on dynamometry pin cap plate described in the technical solution of the present invention.
Equipped with circuit board assemblies in elastomeric components cylinder installation cavity body described in the technical solution of the present invention.For the analogue value of temperature sensor, foil gauge and pressure transducer is converted into digital quantity, and communicated by can bus and miscellaneous equipment.
Elastomeric components described in the technical solution of the present invention carry mounting flange, are fixed to miscellaneous equipment for installing pressure and ground strong combination device for measuring force.
Circuit board assemblies described in the technical solution of the present invention include the elements such as mcu, power supply chip, crystal, can driver, instrument amplifier, resistance, electric capacity, wherein externally fed power supply 12～30vdc, power supply is changed into after 5v to other circuit and sensor power after power circuit voltage regulation filtering；The signal of foil gauge and pressure transducer is converted into the voltage signal of 0 ~ 2.0v through instrument amplifier, and the adc through mcu for this signal is converted into digital signal, is sent to miscellaneous equipment by can driver after temperature-compensating, Serial regulation.
Pressure transducer, foil gauge, temperature sensor, circuit board are arranged in spherical shell the present invention, are formed overall, effectively can reduce installation volume, and are conveniently connected with leveling vehicle support plate, can be by direct battery power on automobile.
The invention has the characteristics that:
1st, it is integrated with two pressure transducers in spherical structure; using the strong sensor force measuring machine in ground when pressure is less; adopt force cell (elastomeric components and foil gauge) when pressure is larger, and the strong sensor force measuring machine in ground is protected when pressure exceedes bearing value.
2nd, spherical structure is in that context it may be convenient to dock with support plate.
3rd, interior band temperature-compensating, linear regulation circuit, real-time linear regulation can be carried out it is ensured that the precision of sensor reaches 0.1% to the strong sensor force measuring machine of force cell and ground.
4th, force cell, strong sensor, temperature sensor, circuit board become one and be arranged in metal ball body, compact.
5th, can or rs485 or rs232 communication interface are adopted.
Brief description
Fig. 1 is the structure chart of the present invention.
Fig. 2 is the circuit block diagram of the present invention.
In figure: 1- elastomeric components, 2- circuit board assemblies, 3- silica gel plate, 4- spool holder assembly, 5- spherical shell, 6- guide pillar plate, 7- pressure transducer, 8- support plate, 9- dynamometry pin cap plate, 10- sealing ring, 11- compression spring, 12- dynamometry pin, 13- foil gauge, 14- temperature sensor.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in further detail.
As shown in Figure 1 and Figure 2.A kind of pressure of the present invention and ground is strong combines device for measuring force, include elastomeric components 1, spool holder assembly 4, spherical shell 5, sensor force measuring machine, gripper shoe 8, foil gauge 13 and temperature sensor 14 by force.Wherein, spherical shell 5 is provided with the tapped circular cylindrical cavity in bottom, and bottom is provided with groove, is provided with spherical shell wire casing between circular cylindrical cavity and groove.Elastomeric components 1 include can intercalation enter in spherical shell 5 cylinder, silica gel plate 3, cylinder is provided with installs cavity and the cylinder wire casing with the cooperation of spherical shell wire casing, it is provided with cannelure in the middle part of cylindrical outer surface, outer surface bottom is provided with external screw thread, and silica gel plate 3 is filled in installation cavity upper/lower terminal and cannelure.Foil gauge 13 is arranged on cylinder cannelure cell wall, and temperature sensor 14 is arranged in cylinder installation cavity body.Foil gauge 13 and temperature sensor 14 constitute force cell.Gripper shoe 8 central upper offers hemisphere die cavity, and bottom offers countersunk head type circular hole.The strong sensor force measuring machine in ground includes pressure transducer 7, compression spring 11, guide pillar plate 6, dynamometry pin 12 and dynamometry pin cap plate 9, dynamometry pin cap plate 9 is arranged on countersunk head type circular hole outer end, compression spring 11 upper end is sleeved on guide pillar plate 6, lower end is located in dynamometry pin 12, dynamometry pin 12 is the tubular construction of lower end closed, upper end is provided with the convex edge of radial direction, and dynamometry pin 12 passes through dynamometry pin cap plate 9.It is provided with sealing ring 10 with the contact surface of dynamometry pin 12 on dynamometry pin cap plate 9.Pressure transducer 7 is by being threadably coupled within spherical shell 5 bottom groove.Elastomeric components 1 and spool holder assembly 4 pass through to be threadedly coupled together.Spherical shell 5 is fixed in gripper shoe 8 by thread connection.Equipped with circuit board assemblies 2 in elastomeric components 1 cylinder installation cavity body.Circuit board assemblies 2 include the elements such as mcu, power supply chip, crystal, can driver, instrument amplifier, resistance, electric capacity, wherein externally fed power supply 12～30vdc, and power supply is changed into after 5v to other circuit and sensor power after power circuit voltage regulation filtering.The signal of the strong sensor force measuring machine of force cell and ground is converted into the voltage signal of 0 ~ 2.0v through instrument amplifier, and the adc through mcu for this signal is converted into digital signal, is sent to miscellaneous equipment by can driver after temperature-compensating, Serial regulation.
Elastomeric components 1 carry mounting flange, are fixed to miscellaneous equipment for installing device for measuring force.Elastomeric components 1 constitute force cell with foil gauge 13, for the pressure within detecting 30 tons.The strong sensor force measuring machine in ground is used for the pressure within 100 kilograms of detection.Temperature sensor 14 is used for detecting the temperature of spherical shell 5.Circuit board assemblies 2 are used for for the analogue value of temperature sensor 14, the strong sensor force measuring machine of force cell and ground being converted into digital quantity, and are communicated by can bus and miscellaneous equipment.
The stress surface of force cell is spheroid, is conveniently connected with the support plate 8 of automobile, and can ensure rotation and the activity of support plate 8.The strong sensor force measuring machine in ground is contacted with ground with spring catch 12 by compression spring 11, the geostatic pressure born is passed to by pressure transducer 7 by compression spring 11, after the strong sensor force measuring machine in ground detects this pressure, calculate the pressure on ground by the pressure history in the unit interval, it is known that whether Current terrestrial meets requirement.Temperature sensor is used for compensating the temperature drift of the strong sensor force measuring machine of force cell and ground.
Mcu given by the amplifier of circuit board assemblies 2 adc after amplifying the tiny signal of sensor carries out analog digital conversion, temperature-compensating and linearization calculation are carried out by the temperature value that current temperature sensor records simultaneously, ensure that the value of sensor disclosure satisfy that requirement, again the result of detection: pressure, intensity values, temperature, fault-signal miscellaneous equipment is sent to by communication interface can, miscellaneous equipment can in a short period of time (time less than 30s) record the information such as the weight of measurement, the intensity on ground, Current Temperatures.
Test process: vehicle is after suitably local stopping, carry out leveling vehicle, 4 support plates can be stretched out, when support plate contact ground, it is arranged on the present invention on leveling electric cylinder or hydraulic cylinder, will stress, dynamometry pin 12 first contacts ground first, the strong sensor force measuring machine in ground is transmitted the force to by compression spring 11, compressed with compression spring 11, support plate comes into contact with ground, until car body is supported and leaves ground leveling by support plate completely, now car body weight is measured (need to be added the value of 4 sensors) by force cell, and the curve of the pressure value by ground strong sensor force measuring machine survey and pressure value changes calculates the intensity on ground, the whole testing time is relevant with the speed that electric cylinder or hydraulic cylinder stretch out, probably at 15～30 seconds about.
Distinguish with other products:
1st, quick measure, can measure ground intensity and car body weight in 15～30 second time, and this time is to carry out with the time synchronized of leveling vehicle, that is, independent take time of measuring, this point is to the particular importance that carries out an urgent task.
2nd, small volume, integrated level is high, is easily installed.
3rd, temperature-compensating and linear compensation are carried out online.
4th, faying face is bulb, is conveniently connected with support plate, convenient support disk activity.
Claims (4)
1. a kind of pressure and ground strong combine device for measuring force it is characterised in that: include elastomeric components (1), spool holder assembly (4), spherical shell (5), strong sensor force measuring machine, gripper shoe (8), foil gauge (13) and temperature sensor (14)；Described spherical shell (5) is provided with the tapped circular cylindrical cavity in bottom, and bottom is provided with groove, is provided with spherical shell wire casing between circular cylindrical cavity and groove；Described elastomeric components (1) include can intercalation enter in spherical shell (5) cylinder, silica gel plate (3), cylinder is provided with installs cavity and the cylinder wire casing with the cooperation of spherical shell wire casing, it is provided with cannelure in the middle part of cylindrical outer surface, outer surface bottom is provided with external screw thread, and silica gel plate (3) is filled in installation cavity upper/lower terminal and cannelure；Foil gauge (13) is arranged on cylinder cannelure cell wall, and temperature sensor (14) is arranged in cylinder installation cavity body；Gripper shoe (8) central upper offers hemisphere die cavity, and bottom offers countersunk head type circular hole；The strong sensor force measuring machine in ground includes pressure transducer (7), compression spring (11), guide pillar plate (6), dynamometry pin (12) and dynamometry pin cap plate (9), pressure transducer (7) is fixed in spherical shell (5) bottom groove, dynamometry pin cap plate (9) is arranged on countersunk head type circular hole outer end, compression spring (11) upper end is sleeved on guide pillar plate (6), lower end is located in dynamometry pin (12), dynamometry pin (12) is the tubular construction of lower end closed, upper end is provided with the convex edge of radial direction, and dynamometry pin (12) passes through dynamometry pin cap plate (9)；Described elastomeric components (1) and spool holder assembly (4) pass through to be threadedly coupled together；Spherical shell (5) is fixed in gripper shoe (8) by thread connection；Elastomeric components (1) and foil gauge (13) constitute force cell.
2. a kind of pressure according to claim 1 and ground strong combine device for measuring force it is characterised in that: described dynamometry pin cap plate (9) is upper and contact surface of dynamometry pin (12) is provided with sealing ring (10).
3. a kind of pressure according to claim 1 and 2 and ground strong combine device for measuring force it is characterised in that: equipped with circuit board assemblies (2) in described elastomeric components (1) cylinder installation cavity body.
4. a kind of pressure according to claim 1 and 2 and ground strong combine device for measuring force it is characterised in that: described elastomeric components (1) carry mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470602.2A CN106338304B (en) | 2016-06-24 | 2016-06-24 | The strong combination device for measuring force of a kind of pressure and ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610470602.2A CN106338304B (en) | 2016-06-24 | 2016-06-24 | The strong combination device for measuring force of a kind of pressure and ground |
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| Publication Number | Publication Date |
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| CN106338304A true CN106338304A (en) | 2017-01-18 |
| CN106338304B CN106338304B (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610470602.2A Active CN106338304B (en) | 2016-06-24 | 2016-06-24 | The strong combination device for measuring force of a kind of pressure and ground |
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| CN (1) | CN106338304B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261010A (en) * | 2018-03-12 | 2019-09-20 | 兰州理工大学 | A kind of portable remote device for measuring force |
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|---|---|---|---|---|
| CN1846120A (en) * | 2003-09-05 | 2006-10-11 | 扎托里乌斯汉堡有限公司 | Housingless load cell |
| CN101644610A (en) * | 2009-08-31 | 2010-02-10 | 内蒙古工业大学 | Pressure sensor |
| CN103743512A (en) * | 2013-10-26 | 2014-04-23 | 内蒙古工业大学 | Pressure sensor with pretightening force |
| CN203854648U (en) * | 2014-04-28 | 2014-10-01 | 武汉理工大学 | Intelligent supporting leg integrating weighing sensor |
| WO2014190932A1 (en) * | 2013-05-31 | 2014-12-04 | 梅特勒-托利多(常州)精密仪器有限公司 | Elastomer structure of multi-range weighing sensor |
| CN105246818A (en) * | 2013-05-08 | 2016-01-13 | 德国施维英有限公司 | Device for supporting a mobile device on the ground |
| CN205748483U (en) * | 2016-06-24 | 2016-11-30 | 湖北泰和电气有限公司 | A kind of pressure and ground combine by force device for measuring force |
-
2016
- 2016-06-24 CN CN201610470602.2A patent/CN106338304B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1846120A (en) * | 2003-09-05 | 2006-10-11 | 扎托里乌斯汉堡有限公司 | Housingless load cell |
| CN101644610A (en) * | 2009-08-31 | 2010-02-10 | 内蒙古工业大学 | Pressure sensor |
| CN105246818A (en) * | 2013-05-08 | 2016-01-13 | 德国施维英有限公司 | Device for supporting a mobile device on the ground |
| WO2014190932A1 (en) * | 2013-05-31 | 2014-12-04 | 梅特勒-托利多(常州)精密仪器有限公司 | Elastomer structure of multi-range weighing sensor |
| CN103743512A (en) * | 2013-10-26 | 2014-04-23 | 内蒙古工业大学 | Pressure sensor with pretightening force |
| CN203854648U (en) * | 2014-04-28 | 2014-10-01 | 武汉理工大学 | Intelligent supporting leg integrating weighing sensor |
| CN205748483U (en) * | 2016-06-24 | 2016-11-30 | 湖北泰和电气有限公司 | A kind of pressure and ground combine by force device for measuring force |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261010A (en) * | 2018-03-12 | 2019-09-20 | 兰州理工大学 | A kind of portable remote device for measuring force |
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| CN106338304B (en) | 2018-10-30 |
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