CN213120779U - Wheel weight testing device - Google Patents
Wheel weight testing device Download PDFInfo
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- CN213120779U CN213120779U CN202021443616.3U CN202021443616U CN213120779U CN 213120779 U CN213120779 U CN 213120779U CN 202021443616 U CN202021443616 U CN 202021443616U CN 213120779 U CN213120779 U CN 213120779U
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- wheel weight
- weighing
- detection
- checking device
- wheel
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Abstract
The utility model relates to a heavy detection device of wheel, including detection mechanism, display mechanism. The detection mechanism comprises a bearing platform for positioning the wheels and a weighing assembly arranged on the lower side of the bearing platform. The display mechanism comprises a display screen and a control circuit board, and the weighing component is electrically connected with the control circuit board to display the weight weighed by the weighing component. The wheel weight detection device can realize wheel weight weighing after the wheels of the automobile drive on the bearing platform, and is also provided with a display screen as a metering device which can independently operate to finish wheel weight weighing detection, so that test data can be displayed in real time.
Description
Technical Field
The utility model relates to a wheel weight measures the field, and more specifically says, relates to a wheel weight inspection device.
Background
Wheel load detection is indispensable in automobile safety and environmental protection detection, and generally an automobile wheel load detection platform is adopted for detection, and the wheel load detection platform provides axle load data required for calculating the braking energy efficiency of each axle and the whole automobile during automobile braking detection by respectively measuring the vertical load distribution condition of each wheel of the automobile.
The current national standard GB 1589 stipulates the overall dimensions, axle loads and quality limits of automobiles, trailers and automobiles and trains in China: the maximum permissible axle loads of the single axle, the two-axle group and the three-axle group of the automobile and the trailer should not exceed the sum of the loads of the tires of the axle or the axle group and the corresponding limit standard. Other types of axles, the maximum allowable axle load should not exceed the number of tires of the axle multiplied by 3000 kg.
In the State quality inspection administration supervision and management method of Motor vehicle safety inspection organization (State quality inspection administration No. 121) and corresponding qualification approval technical conditions of Security inspection organization, the equipment configuration of a motor vehicle detection line is definitely required: the digital secondary instrument is adopted and is provided with a data communication interface, so that networking control can be realized. "
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a heavy detection device of wheel.
The utility model provides a technical scheme that its technical problem adopted is: constructing a wheel weight detection device, which comprises a detection mechanism and a display mechanism;
the detection mechanism comprises a bearing platform for positioning wheels and a weighing assembly arranged on the lower side of the bearing platform;
the display mechanism comprises a display screen and a control circuit board, and the weighing component is electrically connected with the control circuit board to display the weight weighed by the weighing component.
Preferably, the weighing assembly comprises a load cell.
Preferably, the weighing assembly further comprises a support ball disposed at the bottom of the load cell.
Preferably, the support balls are steel balls.
Preferably, the weighing assembly further comprises a bottom plate located below the support ball.
Preferably, the detection mechanism further comprises an in-position photoelectric switch for detecting whether the vehicle enters the inspection bench.
Preferably, the detection mechanism comprises two groups of side-by-side bearing tables and weighing assemblies respectively arranged on the lower sides of the two bearing tables.
Preferably, the detection mechanism further comprises an inner frame, the load-bearing table being mounted on top of the inner frame.
Preferably, the detection mechanism further comprises an outer frame positioned at the outer ring of the inner frame.
Implement the utility model discloses a heavy verifying attachment in wheel has following beneficial effect: the wheel weight detection device can realize wheel weight weighing after the wheels of the automobile drive on the bearing platform, and is also provided with a display screen as a metering device which can independently operate to finish wheel weight weighing detection, so that test data can be displayed in real time.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of a wheel weight checking device in an embodiment of the present invention;
FIG. 2 is a diagram of the hardware connections and data routing of the control circuit board.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the wheel weight checking device in a preferred embodiment of the present invention includes a detecting mechanism and a display mechanism 4, wherein the detecting mechanism includes a bearing platform 7 for positioning the wheel and a weighing assembly 3 mounted on the lower side of the bearing platform 7; display mechanism 4 includes display screen 5 and control circuit board, weigh subassembly 3 with control circuit board electric connection to show the weight that subassembly 3 weighed weighs.
The wheel weight detection device can realize wheel weight weighing after the wheels of the automobile drive on the bearing platform 7, and is also provided with a display screen 5 as a metering device which can independently operate to finish wheel weight weighing detection, and test data is displayed in real time.
Preferably, the detection mechanism comprises two groups of side-by-side bearing tables 7 and weighing assemblies 3 respectively arranged on the lower sides of the two bearing tables 7, the two groups of bearing tables 7 can be respectively used for driving left wheels and right wheels of the automobile, and the weighing assemblies 3 can respectively weigh the wheels.
The detection mechanism further comprises an inner frame 2 and an outer frame 1 positioned on the outer ring of the inner frame 2, and the bearing table 7 is installed on the top of the inner frame 2.
The weighing component 3 comprises a weighing sensor, a supporting ball arranged at the bottom of the weighing sensor and a bottom plate positioned at the lower part of the supporting ball, and preferably, the supporting ball is a steel ball.
The weighing sensors are strain type weighing sensors with supporting legs and are arranged at four corners of the lower surface of each bearing table 7, in other embodiments, the weighing component 3 can be used for eliminating the supporting plate or the supporting plate and the supporting ball, and other supporting structures are arranged at the lower part of the weighing sensors.
The display mechanism 4 further comprises a box body 6, the display screen 5 is arranged on the outer surface of the box body 6, the box body 6 is arranged at a proper position beside the detection mechanism, the control circuit board is arranged in the box body 6, and the control circuit board is provided with a control circuit. The display screen 5 may be a dot matrix screen, an LCD/LED display screen and a touch screen.
The hardware connections and data flow of the control circuit board are shown in fig. 2.
In this embodiment of the system, the Micro Control Unit (MCU) of the system main control circuit may be a single chip microcomputer with embedded 8051, ARM, and other general cores, and its interior has an on-chip flash memory (ROM), a Random Access Memory (RAM), an Electrically Erasable Programmable Read Only Memory (EEPROM), an integrated a/D converter, a pulse counter, an external embedded network card chip, and provides a series of complete system peripherals and interfaces.
The millivolt-level voltage signal output by the weighing sensor is converted into a standard analog quantity voltage signal of 0-5V and the like after signal conditioning such as amplification, filtering, potential translation and the like of a signal conditioning circuit, is sent to an analog port of the MCU for AD sampling, and is converted into a digital signal through an A/D converter;
in the embodiment, a piecewise linear calibration method is selected to divide the input signal into a plurality of sections, calibration is performed in each inter-cell range according to an approximate linear relationship, and a calibration result is stored in the EEPROM of the MCU.
The display screen 5, the indicator light, the alarm and the human-computer interaction equipment are all connected with the general I/O interface of the MCU. The display screen 5 is used for carrying out related display and prompt, the detection indicator lamp is used for commanding a driver to control the automobile to run, the alarm is used for preventing measuring results from being wrong, and human-computer interaction equipment such as a keyboard, a touch screen and the like is used for interacting and judging input instructions.
The system software of the MCU can select 8051, Linux and other embedded single chip microcomputer operating systems, and the software modules comprise: a hardware device driver and an embedded Web server; and in the programming process, the hardware drive and the Web server source code are crossly compiled on an external PC machine through a crossly compiling environment.
All hardware equipment in the embedded single-chip microcomputer system is treated as files, a driver provides a mechanism for safely opening and closing equipment files, and when accessing hardware needing to be controlled in software, the driver of the hardware equipment is required to be called first.
The Web server of the embedded Ethernet chip integrates the functions of field equipment information acquisition and information release, is based on a TCP/IP bottom layer communication protocol, can provide an operation and control interface of equipment for any Web browser user legally accessing the network where the Web browser is located, and is communicated with the Web browser through an HTTP protocol.
The detection process of the inspection bench is as follows:
during detection, firstly, a Web browser user provides detected vehicle information such as license plate number, detection type, vehicle type, axle number and the like, and detection personnel information, and then a detection program is started; the Web browser user can be any legal user accessing a network where the secondary instrument is located, such as a detection line main control computer, a service terminal, a mobile terminal and the like;
the control system on the display mechanism 4 starts a detection program according to the vehicle registration information and the inspector information provided by the user of the Web browser; the LED display screen 5 prompts the automobile to drive into the bearing platform 7 at the speed of 5-10 km/h, when the automobile enters the detection platform, the in-place photoelectric switch sends an interrupt signal, and the system collects a digital signal and judges the in-place information of the automobile. The LED display screen 5 prompts the automobile to stop on the bearing platform 7, so that accurate wheel weight detection is realized, and a detection result is obtained. And (5) prompting the vehicle to exit the detection area after the detection is finished.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. The wheel weight detection device is characterized by comprising a detection mechanism and a display mechanism (4);
the detection mechanism comprises a bearing platform (7) for positioning wheels and a weighing assembly (3) arranged on the lower side of the bearing platform (7);
display mechanism (4) include display screen (5) and control circuit board, weigh subassembly (3) with control circuit board electric connection to show the weight that subassembly (3) of weighing was weighed.
2. A wheel weight checking device according to claim 1, characterized in that the weighing assembly (3) comprises a load cell.
3. A wheel weight checking device according to claim 2, characterized in that the weighing assembly (3) further comprises a support ball arranged at the bottom of the load cell.
4. The wheel weight checking device according to claim 3, wherein the support balls are steel balls.
5. A wheel weight checking device according to claim 3, characterized in that the weighing assembly (3) further comprises a bottom plate located below the support balls.
6. A wheel weight checking device according to claim 1, wherein the detecting mechanism further comprises an in-position photoelectric switch for detecting whether the vehicle enters the checking table.
7. A wheel weight checking device according to any one of claims 1 to 6, characterized in that the detection mechanism comprises two sets of load-bearing tables (7) side by side and weighing assemblies (3) respectively arranged on the lower sides of the two load-bearing tables (7).
8. A wheel weight checking device according to claim 7, characterized in that the detection mechanism further comprises an inner frame (2), the bearing table (7) being mounted on top of the inner frame (2).
9. A wheel weight checking device according to claim 8, characterized in that the detecting mechanism further comprises an outer frame (1) located outside the inner frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443616.3U CN213120779U (en) | 2020-07-21 | 2020-07-21 | Wheel weight testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021443616.3U CN213120779U (en) | 2020-07-21 | 2020-07-21 | Wheel weight testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213120779U true CN213120779U (en) | 2021-05-04 |
Family
ID=75678387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021443616.3U Active CN213120779U (en) | 2020-07-21 | 2020-07-21 | Wheel weight testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213120779U (en) |
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2020
- 2020-07-21 CN CN202021443616.3U patent/CN213120779U/en active Active
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