CN211954413U - Weighing sensor calibrating device of flat brake inspection platform - Google Patents
Weighing sensor calibrating device of flat brake inspection platform Download PDFInfo
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- CN211954413U CN211954413U CN201820386102.5U CN201820386102U CN211954413U CN 211954413 U CN211954413 U CN 211954413U CN 201820386102 U CN201820386102 U CN 201820386102U CN 211954413 U CN211954413 U CN 211954413U
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Abstract
The utility model relates to a flat braking test platform's weighing sensor calibrating installation, weighing sensor calibrating installation examine the board including weighing, and the board of examining of weighing has the last face that is used for supporting a pair of wheel of corresponding car, and the left end and the right-hand member of examining the board of weighing are provided with respectively and are used for supporting left branch leg and right branch leg on corresponding a pair of braking platen, and left branch leg and right branch leg all include standard weighing verification sensor. The utility model provides an among the prior art calibrating installation when weighing sensor examines examine inconvenient problem of calibrating installation portal frame, pneumatic cylinder because of needing the scene.
Description
Technical Field
The utility model relates to a flat braking test platform's weighing sensor calibrating installation.
Background
The braking performance of the vehicle is an important index in the safety performance of the vehicle, which is directly related to driving safety and really related to life and property safety, so that the braking performance detection plays an important role in the field of vehicle performance detection. At present, the braking performance of a vehicle is basically detected and evaluated by a desktop method. The desktop detection equipment mainly comprises: a counter-force roller brake inspection bench and a flat plate brake inspection bench. When the automobile is braked, the pressure of the front wheel on the brake bedplate is increased and the pressure of the rear wheel on the brake bedplate is reduced due to the action of inertia force, namely the axle load of the automobile moves forwards. Compared with a counter-force type roller braking inspection table, when an automobile is detected on the flat plate type braking inspection table, the braking effect of axle load redistribution in the automobile braking process can be reflected truly, and meanwhile, compared with the counter-force type roller braking inspection table, the flat plate type braking inspection table is simple in structure, free of motor drive and incomparable with other detection modes in the aspect of small automobile detection. With the increasing number of motor vehicles, the flat plate type brake inspection bench is inevitably and rapidly developed.
The existing flat plate type brake inspection platform comprises a supporting frame, a weighing frame and a brake platen, wherein a wheel weight detection mechanism is arranged between the weighing frame and the supporting frame, the wheel weight detection mechanism comprises a weighing sensor, a braking force detection mechanism is arranged between the brake platen and the supporting frame, the braking force detection mechanism comprises a force sensor used for detecting the braking force of an automobile, the force sensor is horizontally arranged, and the weighing sensor is vertically arranged. The weighing sensor and the force sensor in the flat brake inspection platform are periodically inspected according to the inspection regulation, the conventional inspection form of the symmetrical weighing sensor is to arrange a portal frame beside a brake platen, a hydraulic cylinder is arranged on a cross beam of the portal frame and driven by a hydraulic pump, and the weighing sensor is inspected by applying downward pressure to the brake platen through the hydraulic cylinder. The existing detection mode has the following problems: the calibration process is an outgoing working process, and basically, a metrologist in a measurement institute takes a car to carry the calibration equipment to a calibration site, and the weighing sensor calibration equipment in the prior art comprises large components such as a portal frame and a hydraulic cylinder, so that the whole calibration equipment is extremely large, the manufacturing cost is high, the carrying is inconvenient, the site installation and use are also inconvenient, and the calibration efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a weighing sensor calibrating device of a flat plate type brake inspection platform, which solves the problem that the calibrating device used in the prior art when the weighing sensor is inspected is inconvenient to calibrate because a portal frame and a hydraulic cylinder are required to be installed on site; an object of the utility model is also to provide a flat braking test platform's weighing sensor verification method.
For solving the technical problem, the utility model discloses well weighing sensor calibrating installation's technical scheme as follows:
the weighing sensor calibrating device of the flat plate type brake inspection platform comprises a weighing inspection plate, wherein the weighing inspection plate is provided with an upper plate surface used for supporting a pair of wheels of a corresponding automobile, the left end and the right end of the weighing inspection plate are respectively provided with a left supporting leg and a right supporting leg which are used for supporting the left supporting leg and the right supporting leg on a corresponding pair of brake platens, and the left supporting leg and the right supporting leg respectively comprise standard weighing inspection sensors.
The rear end of the weighing and determining plate is provided with a ramp for the wheels to pass through from back to front, and the lowest position of the bottom of the ramp is higher than the lowest positions of the left supporting leg and the right supporting leg.
The middle part of the weighing and determining plate is provided with an elastic support which is used for supporting the base body between the corresponding pair of brake bedplate, and the elastic support is a pressure-adjustable air spring support or a compression amount-adjustable spring support.
The elastic support is a spring support with adjustable compression amount, the spring support comprises a spring seat, the spring seat comprises a lower spring sleeve and an upper spring sleeve inserted at the upper end of the lower spring sleeve in a guiding manner, the upper spring sleeve is fixed on a weighing detection plate, the spring support further comprises a support spring arranged in the upper spring sleeve and the lower spring sleeve, a spring pressing plate is assembled in the upper end of the support spring in the upper spring sleeve along the up-down direction in a guiding manner, and the weighing detection plate is provided with a regulating screw rod in threaded connection for driving the spring pressing plate to move up and down.
The lower end of the adjusting screw rod is matched with the spring pressing plate in a rotation anti-falling way.
The utility model has the advantages that: when the device is used, the left supporting leg and the right supporting leg of the weighing sensor calibrating device are respectively arranged on the corresponding brake bedplate to be calibrated, a pair of wheels of the automobile are driven to the weighing calibration plate, the weight value measured by the standard weighing calibration sensor is compared with the weight value measured by the weighing sensor of the flat plate type brake test platform to calibrate the weighing sensor, the automobile provides calibrating pressure, a portal frame, a hydraulic cylinder and other parts are not needed, large-workload assembly is not needed on site, the whole calibrating device is low in manufacturing cost and convenient to carry, and the calibrating process is simple and convenient.
Drawings
Fig. 1 is a diagram illustrating a state of use of a weight verification section according to an embodiment of the present invention;
FIG. 2 is a top view of the weigh verification section of FIG. 1 mated with a flat brake test platform;
fig. 3 is a left side view of fig. 1.
Detailed Description
Before going on the detailed description to the calibrating installation in the utility model, at first introduce the flat braking test platform among the prior art, flat braking test platform includes base member 5 and a pair of preceding braking platen 11 that is used for carrying out the braking inspection to 1 front wheel 2 of car and a pair of back braking platen 12 that is used for carrying out the braking inspection to the rear wheel of car, and interval arrangement about two braking platens in the preceding braking platen of a pair of, interval arrangement about two braking platens in the back braking platen of a pair of. The base body can be of a metal structure or a concrete structure, a vertically arranged weighing sensor 6 is arranged between the base body and the corresponding brake bedplate, and the weighing sensor is used for detecting the axle load born by the corresponding brake bedplate.
Embodiments of the load cell calibration apparatus are shown in fig. 1-3: including length along the board 3 of examining of weighing of left right direction extension, the board 3 of examining of weighing has the last face that is used for supporting a pair of wheel of corresponding car, and the left end of examining the board of weighing is provided with left leg 9, and the right-hand member of examining the board of weighing is provided with right leg 13, and left leg 9, right leg 13 are used for supporting respectively on corresponding a pair of braking platen. Left branch leg and right branch leg all include landing leg body 7 and the standard weighing verification sensor 8 of cluster on locating the landing leg body, and standard weighing verification sensor is vertical arranges, and the landing leg body is a vertical arrangement's branch in this embodiment, and standard weighing verification sensor sets up in the bottom of landing leg body. The rear end of the weighing and determining plate is provided with a ramp 10 for the corresponding wheel to pass through from back to front, and the lowest position of the bottom of the ramp is higher than the lowest positions of the left and right supporting legs.
The middle part of examining the board of weighing is provided with and is used for supporting the elastic support 14 on the base member between corresponding a pair of braking platen, elastic support 14 is pressure adjustable spring support, spring support includes the spring holder, the spring holder includes spring sleeve 15 down and the direction cartridge in the last spring sleeve 16 of spring sleeve 15 upper end down, it is fixed in on examining board 3 to weigh to go up spring sleeve 16, spring support is still including arranging in last spring sleeve 16, supporting spring 17 in spring sleeve 15 down, upward in the spring sleeve in supporting spring's upper end along upper and lower direction removal be equipped with spring clamp 18, it has the adjusting screw 19 that is used for driving to examine the board of weighing go up threaded connection the spring clamp reciprocates, adjusting screw's upper end is provided with the outer head structure that is used for moment of torsion input.
When the weighing sensors corresponding to a pair of brake tables at the front position are checked, the left leg of the weighing sensor checking device is arranged on the left brake table, the right leg of the weighing sensor checking device is arranged on the right brake table, a checking person can drive the automobile, so that the front wheels of the automobile run to the upper plate surface of the weighing checking plate from back to front through a ramp, the arrangement of the ramp can reduce the impact of the automobile on the weighing checking plate, protect the standard weighing checking sensor and avoid the weighing checking plate from upwarping and shifting, the lowest position of the bottom of the ramp is higher than the lowest positions of the left leg and the right leg, therefore, the ramp does not influence the normal checking process after the current wheels run to the upper plate surface of the weighing checking plate, and the checking process is finished by comparing the measuring value of the standard weighing checking sensor with the measuring value of the weighing sensor of the brake checking platform, when a plurality of groups of verification data are needed, the compression amount of the supporting spring can be changed by adjusting the adjusting screw (at the moment, the automobile can be driven away firstly), so that a plurality of groups of verification data are obtained.
In other embodiments of the present invention: the elastic support can also be a gas spring support with adjustable pressure, and the supporting force is changed by changing the gas pressure in the gas spring support, so that different verification pressures are obtained; of course, the resilient support may be eliminated, and vehicles of different weights may be used if different certification pressures are to be achieved.
A method for calibrating a weighing sensor of a flat plate type brake inspection platform comprises the following steps: the method comprises the following steps that firstly, a left supporting leg and a right supporting leg of a weighing sensor calibrating device are respectively arranged on a pair of brake table plates to be calibrated, the specific structure of the weighing sensor calibrating device is the same as that of each embodiment of the weighing sensor calibrating device, detailed description is omitted, and secondly, a pair of wheels of an automobile run onto the upper plate surface of a weighing calibration plate of the weighing sensor calibrating device, the automobile provides calibrating pressure, and a weighing sensor of a flat plate type brake testing platform is calibrated through a standard weighing calibration sensor.
The middle part of the weighing and checking plate is provided with an elastic support which is used for supporting the base body between the corresponding pair of brake bedplate, the elastic support is a pressure-adjustable air spring support or a compression amount-adjustable spring support, and at least two groups of checking data can be obtained by adjusting the supporting force of the elastic support. In other embodiments of the present invention: the ramp can also be arranged at the front side of the weighing and determining plate, and at the moment, the rear wheel of the automobile can back up to the weighing and determining plate from front to back; of course, the ramp may be eliminated.
Claims (5)
1. Weighing sensor calibrating installation of flat braking test platform, its characterized in that: including weighing and examining the board, the board of examining of weighing has the last face that is used for supporting a pair of wheel of corresponding car, and the left end and the right-hand member of examining the board of weighing are provided with respectively and are used for supporting left leg and right leg on corresponding a pair of braking platen, and left leg and right leg all include standard weighing verification sensor.
2. A load cell verification apparatus as claimed in claim 1, wherein: the rear end of the weighing and determining plate is provided with a ramp for the wheels to pass through from back to front, and the lowest position of the bottom of the ramp is higher than the lowest positions of the left supporting leg and the right supporting leg.
3. A load cell verification apparatus as claimed in claim 1 or claim 2, wherein: the middle part of the weighing and determining plate is provided with an elastic support which is used for supporting the base body between the corresponding pair of brake bedplate, and the elastic support is a pressure-adjustable air spring support or a compression amount-adjustable spring support.
4. A load cell verification apparatus as claimed in claim 3, wherein: the elastic support is a spring support with adjustable compression amount, the spring support comprises a spring seat, the spring seat comprises a lower spring sleeve and an upper spring sleeve inserted at the upper end of the lower spring sleeve in a guiding manner, the upper spring sleeve is fixed on a weighing detection plate, the spring support further comprises a support spring arranged in the upper spring sleeve and the lower spring sleeve, a spring pressing plate is assembled in the upper end of the support spring in the upper spring sleeve along the up-down direction in a guiding manner, and the weighing detection plate is provided with a regulating screw rod in threaded connection for driving the spring pressing plate to move up and down.
5. The load cell calibration device as claimed in claim 4, wherein: the lower end of the adjusting screw rod is matched with the spring pressing plate in a rotation anti-falling way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386102.5U CN211954413U (en) | 2018-03-21 | 2018-03-21 | Weighing sensor calibrating device of flat brake inspection platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820386102.5U CN211954413U (en) | 2018-03-21 | 2018-03-21 | Weighing sensor calibrating device of flat brake inspection platform |
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| CN211954413U true CN211954413U (en) | 2020-11-17 |
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| CN201820386102.5U Active CN211954413U (en) | 2018-03-21 | 2018-03-21 | Weighing sensor calibrating device of flat brake inspection platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458779A (en) * | 2018-03-21 | 2018-08-28 | 郑州东辰科技有限公司 | The weighing sensor calibrating installation and calibration method of Flat plate type brake verifying bench |
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2018
- 2018-03-21 CN CN201820386102.5U patent/CN211954413U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458779A (en) * | 2018-03-21 | 2018-08-28 | 郑州东辰科技有限公司 | The weighing sensor calibrating installation and calibration method of Flat plate type brake verifying bench |
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