CN108225666B - Calibrating device for flat plate type brake inspection platform - Google Patents
Calibrating device for flat plate type brake inspection platform Download PDFInfo
- Publication number
- CN108225666B CN108225666B CN201810313951.2A CN201810313951A CN108225666B CN 108225666 B CN108225666 B CN 108225666B CN 201810313951 A CN201810313951 A CN 201810313951A CN 108225666 B CN108225666 B CN 108225666B
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- China
- Prior art keywords
- verification
- fixing seat
- bedplate
- weighing
- brake
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention relates to a calibrating device for a flat-plate brake inspection platform, which comprises a force sensor calibrating part, wherein the force sensor calibrating part comprises a base fixing seat connected to the upper end of a base in use and a bedplate fixing seat connected to the upper end of a corresponding brake bedplate in use, a force sensor calibrating mechanism is arranged between the base fixing seat and the bedplate fixing seat, and the force sensor calibrating mechanism comprises a force application mechanism and a standard force sensor. The invention solves the problem of inconvenient verification in the prior art that a horizontal verification force is required to be provided by a car with a certain speed when the force sensor is verified.
Description
Technical Field
The invention relates to an calibrating device for a flat brake testing platform, which belongs to the field of calibration.
Background
Since an important index of the braking performance type automobile safety performance of a vehicle is directly related to the driving safety and is practically related to the life and property safety, 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 estimated by using a desk-top method. The table method detection device mainly comprises the following steps: reaction type roller brake inspection bench and flat plate type brake inspection bench. When the automobile is braked, the pressure of the front wheel pair brake platen is increased due to the action of inertia force, and the pressure of the rear wheel brake platen is reduced, namely the axle load of the automobile moves forwards. Compared with the counter-force roller braking inspection bench, when an automobile is detected on the flat plate type braking inspection bench, the braking effect of axle load redistribution in the automobile braking process can be truly reflected, and meanwhile, compared with the counter-force roller braking inspection bench, the flat plate type braking inspection bench is simple in structure and free of motor driving, and has the advantage incomparable with other detection modes in the aspect of small automobile detection. With the increasing number of motor vehicles, flat brake checkboxes tend to develop rapidly.
The conventional flat brake inspection platform is a high-precision flat brake inspection platform disclosed in Chinese patent CN106053097A, and 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 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 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 inspected regularly according to the inspection rule, the inspection mode of the existing symmetrical weighing sensor is that a portal frame is arranged beside a brake platen, a hydraulic cylinder is arranged on a beam of the portal frame and driven by a hydraulic pump, and the symmetrical weighing sensor is inspected by applying downward pressure to the brake platen through the hydraulic cylinder. When the force sensor is detected, the access board on the brake platen is removed, a standard detection force sensor is arranged beside the force sensor in parallel, and then the automobile is driven to brake on the brake platen to provide horizontal detection force for the force sensor, and the existing detection mode of the force sensor has the following problems: when the force sensor is detected, as the installation space beside the force sensor is limited, other parts can not be installed any more, so that the horizontal detecting force can be provided only by means of the automobile, when the automobile provides the horizontal detecting force, the automobile needs to have certain initial speed and then emergency braking, has certain danger, and is not easy to operate when a plurality of groups of detecting data are needed; the weighing verification process has the following problems: the verification process is an outgoing working process, and basically, a metering person in a metering yard takes a vehicle to carry the verification equipment to a verification site, while the weighing sensor verification equipment in the prior art comprises large components including a portal frame, a hydraulic cylinder and the like, so that the whole verification equipment is extremely huge, the manufacturing cost is high, the carrying is very inconvenient, the site installation and the use process are also very inconvenient, and the verification efficiency is lower.
Disclosure of Invention
The invention aims to provide a verification device for a flat-plate brake inspection platform, which is used for solving the problem that in the prior art, a horizontal verification force is required to be provided by a car with a certain speed when a force sensor is verified, so that verification is inconvenient.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a calibrating device for flat brake inspection platform, includes force sensor examination part, and force sensor examination part is including connecting in the base member fixing base of base member upper end when using and connecting in the platen fixing base of corresponding brake platen upper end when using, is provided with force sensor examination mechanism between base member fixing base and the platen fixing base, and force sensor examination mechanism includes force application mechanism and standard force sensor.
The force application mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.
The base body fixing seat is provided with a base body connecting claw which is used for extending into a gap between the base body and the brake platen to realize the connection of the base body fixing seat and the base body, and the platen fixing seat is provided with a platen connecting claw which is used for extending into the gap to realize the connection of the platen fixing seat and the brake platen.
The base body fixing seat and the bedplate fixing seat are arranged back and forth, and the thicknesses of the base body connecting claw and the bedplate connecting claw in the front-back direction are gradually reduced from top to bottom.
The gaps on the opposite sides of the base body connecting claw and the bedplate connecting claw are gradually increased from top to bottom.
The verification device further comprises a weighing sensor verification part, the weighing sensor verification part comprises a weighing verification plate, the front end of the weighing verification plate is provided with a front supporting leg, the rear end of the weighing verification plate is provided with a rear supporting leg which is used for being supported on a corresponding verified brake platen, the rear supporting leg comprises a standard weighing verification sensor, and the weighing verification plate is provided with an upper plate surface which extends along the front-rear direction and is used for moving and walking of wheels of a corresponding automobile in the front-rear direction.
The two weighing verification plates are arranged in parallel at intervals along the left-right direction when in use, and rear supporting legs arranged on each weighing verification plate are respectively used for supporting corresponding brake tables.
The rear end of the weighing verification plate is provided with a ramp, and the lowest position of the bottom of the ramp is higher than the lowest position of the rear supporting leg.
The beneficial effects of the invention are as follows: when the force sensor is detected, the base fixing seat is connected to the upper end of the base, the bedplate fixing seat is connected to the upper end of the brake bedplate, and the base fixing seat and the bedplate fixing seat are both positioned on the upper side of the brake bedplate and are not limited by the space inside the brake bedplate, so that a force application mechanism occupying a certain space can be arranged between the base fixing seat and the bedplate fixing seat, and horizontal detecting force is provided through the force application mechanism, so that the force sensor of the brake detecting platform can be detected by utilizing the standard force sensor, and an automobile with a certain speed is not required to provide horizontal detecting force, thereby simplifying the detecting process of the force sensor.
Further, when the weight sensor is used for detecting, the rear supporting leg of the detecting device is arranged on the corresponding brake platen to be detected, the front supporting leg of the detecting device is arranged on the base body at the front side of the brake platen to be detected, as long as the front supporting leg and the rear supporting leg are not supported on the brake platen to be detected together, a pair of wheels of the automobile are driven onto the weighing detecting plate, the weight value measured by the standard weighing detecting sensor is compared with the weight value measured by the weighing sensor of the flat plate type brake detecting platform to detect the weight sensor, the automobile provides pressure, the components such as a portal frame and a hydraulic cylinder are not needed, the large-workload assembly is not needed on site, the whole detecting device is low in manufacturing cost, convenient to carry, the detecting process is simple and convenient, and multiple groups of detecting data can be conveniently obtained through the movement of the automobile.
Drawings
FIG. 1 is a diagram of the use of a portion of a weigh verification in one embodiment of the invention;
FIG. 2 is a top view of the portion of the weigh verification of FIG. 1 mated with a flat brake verification platform;
FIG. 3 is a schematic illustration of the cooperation of a force sensor assay portion with a flat brake assay platform in accordance with the present invention.
Detailed Description
Before describing the calibrating apparatus in detail, a flat brake testing platform in the prior art is first described, and the flat brake testing platform comprises a base body 5, a pair of front brake platens 11 for performing brake testing on front wheels 2 of an automobile, and a pair of rear brake platens 12 for performing brake testing on rear wheels of the automobile, wherein two brake platens of the pair of front brake platens are arranged at left and right intervals, and two brake platens of the pair of rear brake platens are arranged at left and right intervals. The base body can be of a metal structure or a concrete structure, a horizontally arranged force sensor 13 is arranged between the base body and the corresponding braking bedplate and used for detecting braking force born by the braking bedplate, and a vertically arranged weighing sensor 6 is arranged between the base body and the corresponding braking bedplate and used for detecting axle weight born by the corresponding braking bedplate.
Embodiments of the flat brake inspection platform verification device are shown in fig. 1 to 3: the verification device comprises a weighing verification section for verifying the weighing sensor 6 and a force sensor verification section for verifying the force sensor 13. The weighing verification part comprises two weighing verification plates 3 which are arranged at intervals left and right during use, each weighing verification plate is of a strip-shaped structure with the length extending along the front-rear direction, each weighing verification plate corresponds to one brake platen, a front supporting leg 4 is arranged at the front end of each weighing verification plate, a rear supporting leg 9 which is used for supporting and matching with the corresponding brake platen is arranged at the rear end of each weighing verification plate, each rear supporting leg comprises a rear supporting leg body and a standard weighing verification sensor 8 which is arranged on the rear supporting leg body in a series manner, the standard weighing verification sensors are vertically arranged, the rear supporting leg body 7 in the embodiment is a supporting rod which is vertically arranged, and the standard weighing verification sensor 8 is arranged at the bottom of the rear supporting leg body. The weighing verification plate 3 has an upper plate surface extending in the front-rear direction for the wheels of the corresponding automobile to travel in the front-rear direction. A ramp 10 is provided at the rear end of the weigh verification plate, the bottom lowermost position of the ramp 10 being higher than the lowermost position of the rear legs.
When the weighing sensors corresponding to the two front brake platens are detected, the front support legs of the calibrating device are arranged on the base body 5 corresponding to the front sides of the brake platens, the rear support legs of the calibrating device are arranged on the corresponding brake platens, a calibrating person can drive an automobile, the front wheels of the automobile can drive the automobile to the upper plate surface of the weighing calibrating plate from back to front through the ramp, the ramp can reduce the impact of the automobile on the weighing calibrating plate, the standard weighing calibrating sensor is protected, the tilting displacement of the weighing calibrating plate is avoided, the lowest position of the bottom of the ramp is higher than the lowest position of the rear support legs, therefore, after the current wheels drive the upper plate surface of the weighing calibrating plate, the ramp can not influence the normal calibrating process, the calibrating process can be completed by comparing the measured values of the standard weighing calibrating sensor with the measured values of the weighing sensors of the brake calibrating platform, and when a plurality of groups of calibrating data are needed, the calibrating process can be realized by front and back movement of the automobile. According to the invention, the verification pressure is not required to be provided by means of the portal frame and the hydraulic cylinder, but is provided in a very convenient manner of being obtained by the automobile, so that the verification device is very simple in structure and easy to carry.
The force sensor verification part comprises a base fixing seat 14 which is connected to the upper end of the base 5 when in use and a platen fixing seat 18 which is connected to the upper end of the corresponding brake platen 11 when in use, wherein a base connecting claw 21 which is used for extending into a gap between the base and the brake platen to realize the connection of the base fixing seat and the base is arranged on the base fixing seat, and a platen connecting claw 22 which is used for extending into the gap to realize the connection of the platen fixing seat and the brake platen is arranged on the platen fixing seat. The base fixing seat and the bedplate fixing seat are arranged back and forth, the thicknesses of the base connecting claw 21 and the bedplate connecting claw 22 in the front-back direction are gradually reduced from top to bottom, the gaps of the opposite sides of the base connecting claw and the bedplate connecting claw are gradually increased from top to bottom, and the opposite sides of the base fixing seat 14 and the bedplate fixing seat 18 are inclined planes 16 with gradually increased intervals from top to bottom. In the embodiment, when the device is used, a verification hydraulic cylinder 15 is arranged on a base fixing seat, a piston rod of the verification hydraulic cylinder is connected with a platen fixing seat through a force transmission structure, the force transmission structure comprises a force transmission rod 19, the front end of the force transmission rod is connected with the piston rod through a universal joint 17, a standard force sensor 20 is arranged on the force transmission rod 19 in series, and the standard force sensor is horizontally arranged.
When the force sensor is detected, the base fixing seat is connected to the base, the bedplate fixing seat is connected to the corresponding braking bedplate, the pulling force or pushing force is applied through the hydraulic cylinder, and the force sensor of the braking inspection platform is detected through the standard force sensor. Compared with the prior art, the inspection board is directly removed, the standard force sensor is installed, and the inspection mode is much simpler when the force sensor is inspected by the automobile.
In other embodiments of the invention: the assay device of the present invention may also not include a force sensor assay portion; the weighing verification plate can only be one, the weighing verification plate transversely spans a pair of brake tables along the left-right direction, two rear supporting legs are arranged at the bottom of the weighing verification plate, and the two rear supporting legs correspond to the left brake table plate and the right brake table plate respectively; the ramp can also be omitted; the hydraulic cylinder can be replaced by other force applying mechanisms such as a pneumatic cylinder and an electric push rod which can provide horizontal verification force, and the force applying mechanisms can be manual force applying mechanisms, for example, the force applying mechanisms comprise force applying sleeves, the two ends of the force applying sleeves are provided with connecting threads with opposite rotation directions, the connecting threads are connected with connecting screws, and when the force applying sleeves are rotated, the connecting screws can apply pulling force and/or pushing force to a brake platen; the base fixing seat can be fixed on the base without bolts, for example, a plurality of vertical connecting holes are formed in the base, the base fixing seat is provided with upright posts corresponding to the vertical connecting holes, when the base fixing seat is used, the upright posts are inserted into the corresponding vertical connecting holes, the upright posts limit the horizontal movement of the base fixing seat, the force application mechanism can smoothly apply force, the base fixing seat is directly taken away along the up-down direction after verification, the connecting process of the base fixing seat is simplified, the vertical connecting holes on the base can not influence the passing of a normal automobile, the same reason is that the bedplate fixing seat can be connected with the brake bedplate without bolts; the verification device of the invention does not need to comprise a weighing sensor verification part, and only the force sensor of the brake verification platform is verified by the verification device; the universal joint is not required, at the moment, the piston rod is connected with one end of the standard force sensor through the joint bearing, and the other end of the standard force sensor is connected with the platen fixing seat through the joint bearing; the entire assay device may also include only the force sensor assay portion. The base body fixing seat and the bedplate fixing seat are arranged on the surfaces of the base body and the brake bedplate, and the positions of the base body fixing seat and the bedplate fixing seat are consistent with the positions of the automobile for generating braking force, so that the base body fixing seat and the bedplate fixing seat are closer to actual working conditions.
The verification method of the weighing sensor can be summarized as follows: the method comprises the steps of firstly placing a rear supporting leg of a verification device on a corresponding brake platen, placing a front supporting leg of the verification device on a base body on the front side of the brake platen, secondly opening a pair of wheels of an automobile onto a weighing verification board, and comparing a weight value measured by a standard weighing verification sensor with a weight value measured by a weighing sensor of a flat plate type brake verification platform to verify the weighing sensor, wherein a plurality of groups of verification data are obtained through the front and back movement of the automobile on the upper plate surface of the weighing verification board.
Claims (7)
1. The utility model provides a calibrating installation for flat brake inspection platform, includes force transducer verification part, its characterized in that: the force sensor verification part comprises a base fixing seat connected to the upper end of the base in use and a bedplate fixing seat connected to the upper end of the corresponding brake bedplate in use, a force sensor verification mechanism is arranged between the base fixing seat and the bedplate fixing seat, the force sensor verification mechanism comprises a force application mechanism and a standard force sensor, the base fixing seat is provided with a base connecting claw used for extending into a gap between the base and the brake bedplate to realize the connection of the base fixing seat and the base, and the bedplate fixing seat is provided with a bedplate connecting claw used for extending into the gap to realize the connection of the bedplate fixing seat and the brake bedplate.
2. The assay device according to claim 1, wherein: the force application mechanism is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.
3. The assay device according to claim 1, wherein: the base body fixing seat and the bedplate fixing seat are arranged back and forth, and the thicknesses of the base body connecting claw and the bedplate connecting claw in the front-back direction are gradually reduced from top to bottom.
4. A certification device according to claim 3, wherein: the gaps on the opposite sides of the base body connecting claw and the bedplate connecting claw are gradually increased from top to bottom.
5. The assay device according to any one of claims 1 to 4, wherein: the verification device further comprises a weighing sensor verification part, the weighing sensor verification part comprises a weighing verification plate, the front end of the weighing verification plate is provided with a front supporting leg, the rear end of the weighing verification plate is provided with a rear supporting leg which is used for being supported on a corresponding verified brake platen, the rear supporting leg comprises a standard weighing verification sensor, and the weighing verification plate is provided with an upper plate surface which extends along the front-rear direction and is used for moving and walking of wheels of a corresponding automobile in the front-rear direction.
6. The assay device according to claim 5, wherein: the two weighing verification plates are arranged in parallel at intervals along the left-right direction when in use, and rear supporting legs arranged on each weighing verification plate are respectively used for supporting corresponding brake tables.
7. The assay device according to claim 6, wherein: the rear end of the weighing verification plate is provided with a ramp, and the lowest position of the bottom of the ramp is higher than the lowest position of the rear supporting leg.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234695 | 2018-03-21 | ||
| CN2018102346958 | 2018-03-21 |
Publications (2)
| Publication Number | Publication Date |
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| CN108225666A CN108225666A (en) | 2018-06-29 |
| CN108225666B true CN108225666B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810313951.2A Active CN108225666B (en) | 2018-03-21 | 2018-04-10 | Calibrating device for flat plate type brake inspection platform |
| CN201810313945.7A Pending CN108426671A (en) | 2018-03-21 | 2018-04-10 | A kind of brake inspection platform calibrating installation |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810313945.7A Pending CN108426671A (en) | 2018-03-21 | 2018-04-10 | A kind of brake inspection platform calibrating installation |
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| CN (2) | CN108225666B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357889B (en) * | 2018-10-18 | 2020-09-08 | 珠海同米科技有限公司 | Flat plate brake detection table and detection method thereof |
| CN109357890B (en) * | 2018-10-18 | 2020-12-22 | 珠海同米科技有限公司 | Plate type vehicle brake detection device and use method thereof |
| CN109738208A (en) * | 2019-03-12 | 2019-05-10 | 上驰汽车有限公司 | Electric motor coach brake detection table |
| CN110567640A (en) * | 2019-10-10 | 2019-12-13 | 国网河南省电力公司电力科学研究院 | Online calibrating device and method for circuit breaker pressure sensor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108426671A (en) | 2018-08-21 |
| CN108225666A (en) | 2018-06-29 |
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