CN203595582U - General calibration lever for keyway type roller counterforce type brake test bench - Google Patents
General calibration lever for keyway type roller counterforce type brake test bench Download PDFInfo
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- CN203595582U CN203595582U CN201320833145.0U CN201320833145U CN203595582U CN 203595582 U CN203595582 U CN 203595582U CN 201320833145 U CN201320833145 U CN 201320833145U CN 203595582 U CN203595582 U CN 203595582U
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- keyway
- calibration lever
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Abstract
Provided is a general calibration lever for a keyway type roller counterforce type brake test bench which relates to the calibration technique of a motor vehicle braking performance test bench. The general calibration lever solves problems that a conventional calibration lever needs to be fixed through a U-shaped tool, and the U-shaped tool is easy to slide, causes errors in the calibration data, and further results in hidden hazards for automobile safety. During the use of the general calibration lever, the general calibration lever directly acts on a steel-made keyway type roller. A keyway type hook hooks a keyway of the roller. An interior angle radian of the keyway type hook is identical to the radius of the roller, and the force bearing direction of the keyway type hook goes along the radial direction of the roller. At the same time, more calibration point values can be acquired by increasing counterweights and according to moment arms in different lengths, and thus the accuracy of a calibrated device is calibrated. The general calibration lever is simple in structure and convenient to use, and is economical and suitable. After tests, the general calibration lever is rapid and accurate in calibration, and is suitable for calibrating the keyway type roller type brake test bench.
Description
Technical field
The utility model relates to the calibration technique of brake property test platform for motor vehicle.
Background technology
The detection of automobile brake perfrmance is one of important content of Vehicle Security detection, is the essential items for inspection that vehicle inspection and test station detects vehicle.Along with China's automobile pollution rapid growth, automobile is subject to people's common concern on the impact of environment.The quality of automobile brake perfrmance is directly connected to people's life security.Therefore be necessary to work out the Method and kit for that detects fast and accurately automobile brake perfrmance check-out console.
Drum reaction brake test bench is the device for detection of automobile braking performance.Brake platform is made up of drum apparatus, drum driven motor, reducing gear, lifting device, test macro and Displaying Meter etc.The principle of work of brake platform is: while being examined car brakeing, measured wheel and passed to the reverse tangential force on drive roll surface by force cell, this power be wheel braking force.It is the counter-force that acts on the wheel braking force on dynamometry cylinder by mensuration, in conjunction with known axle for vehicle mounted mass, realize vehicle braking performances detect.The calibrating of visible damping force is for the importance of drum reaction brake test bench.In the time that drum reaction brake test bench is examined and determine, we are by adding upper lever to cylinder now, then examine and determine damping force by standard test weight, and the installing and using of lever seems and be even more important.As shown in Figure 1.Key slot type drum reaction type brake platform is to have a considerable amount of Vehicles Brake Test Benchs.Its cylinder surface is to increase the friction force of tire and cylinder and be laterally processed into several rows of keyway, so be commonly called as key slot type cylinder check-out console.In the time that key slot type anti-force type cylinder check-out console is examined and determine, its calibration lever need first be fixed with U-shaped instrument and calibration lever base nut, installs comparatively loaded down with trivial details.U-shaped instrument is processed into by the thick reinforcing bar of 10-12mm mostly in addition.Due to ageing equipment, the demarcation lever of some equipment configurations cannot be installed, what have is even not good at owing to taking care of, when the key slot type drum-type brake test bench calibration lever of steel is lost or lever is installed, the U-shaped instrument of truck dead lever skids, often make calibration lever fixing not firm, can not make calibration lever keep on request horizontality, thereby cause calibrating data deviation larger, detect and bring certain hidden danger to automobile.
Utility model content
The purpose of this utility model is to need in use to fix by U-shaped instrument in order to solve traditional calibration lever, and U-shaped instrument easily skids, cause examining and determine data and have error, thereby the problem that automotive safety is caused a hidden trouble, provides a kind of novel general calibration lever of key slot type drum reaction type brake platform.
The general calibration lever of key slot type drum reaction type brake platform described in the utility model comprises lever construction and weight tray, described lever construction in horizontal direction, the front end of described lever construction is provided with key slot type grab, described key slot type grab inner side is 90 degree circular arcs, the radius of described circular arc is identical with the radius roller of key slot type drum reaction type brake platform, key slot type grab front end is provided with the plate-like structure radially extending to circular arc inner side along circular arc, described plate-like structure is corresponding with cylinder keyway, be used for hooking cylinder keyway, on described lever construction, be provided with level meter, on described lever construction, be provided with N measure-alike pallet locating slot 6, N is greater than 1 integer, described N pallet locating slot 6 is all unequal to the distance of key slot type grab.
The general calibration lever of key slot type drum reaction type brake platform described in the utility model acts directly on steel key slot type cylinder in use, calibration lever makes full use of the keyway of processing for increasing Tire Friction on cylinder, at the olecranoid key slot type grab of calibration lever and the design of cylinder stiff end, can hook the keyway of cylinder, the interior angle radian of key slot type grab is identical with radius roller, its stress point (the A point in Fig. 2) is at cylinder surface, be subject to force direction along rotary drum radial to, mainly play the effect of the strong point of calibration lever.Simultaneously, in order to solve the standard test weight limited amount carrying, the problem that calibrating point is few, on the lever construction of calibration lever, increase length scale, weight tray is arranged to movable, can obtain more calibrating point value according to the mode of the arm of force of different length and increase counterweight like this, to check the accuracy of tested equipment.The general calibration lever of key slot type drum reaction type brake platform described in present embodiment is simple in structure, easy to use, economic and practical.Through test, calibrating is quick, accurate, for the demarcation of key slot type drum-type brake test bench has brought convenience.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that traditional calibration lever detects automobile brake perfrmance;
Fig. 2 is the front view of the structural representation of the general calibration lever of key slot type drum reaction type brake platform described in embodiment one to five;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the front elevation of the structural drawing of the weight tray in embodiment one;
Fig. 5 is the left view of Fig. 4.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 2 to Fig. 5, the general calibration lever of key slot type drum reaction type brake platform described in present embodiment comprises lever construction 1 and weight tray 2, described lever construction 1 in horizontal direction, the front end of described lever construction 1 is provided with key slot type grab 3, described key slot type grab 3 inner sides are 90 degree circular arcs, the radius of described circular arc is identical with the radius roller of key slot type drum reaction type brake platform, key slot type grab 3 front ends are provided with the plate-like structure 4 radially extending to circular arc inner side along circular arc, described plate-like structure 4 is corresponding with cylinder keyway, be used for hooking cylinder keyway, on described lever construction 1, be provided with level meter 5, on described lever construction 1, be provided with N measure-alike pallet locating slot 6, N is greater than 1 integer, described N pallet locating slot 6 is all unequal to the distance of key slot type grab 3.
The general calibration lever of key slot type drum reaction type brake platform described in present embodiment adopts No. 45 steel to be made.When calibrating, keyway grab is stuck in cylinder keyway.Described calibration lever acts directly on steel key slot type cylinder, calibration lever makes full use of the keyway of processing for increasing Tire Friction on cylinder, at the olecranoid key slot type grab 3 of calibration lever and the design of cylinder stiff end, can hook the keyway of cylinder, the interior angle radian of key slot type grab 3 is identical with radius roller, its stress point (A in Fig. 2) is at cylinder surface, be subject to force direction along rotary drum radial to, mainly play the effect of the strong point of calibration lever.Simultaneously, in order to solve the standard test weight limited amount carrying, the problem that calibrating point is few, on the lever construction 1 of calibration lever, increase length scale, weight tray 2 is arranged to movable, can obtain more calibrating point value according to the mode of the arm of force of different length and increase counterweight like this, to check the accuracy of tested equipment.The general calibration lever of key slot type drum reaction type brake platform described in present embodiment is simple in structure, easy to use, economic and practical.Through test, calibrating is quick, accurate, for the demarcation of key slot type drum-type brake test bench has brought convenience, is subject to the welcome of measuring station.
Embodiment two: present embodiment is described in conjunction with Fig. 2, present embodiment is the further restriction to the general calibration lever of key slot type drum reaction type brake platform described in embodiment one, in present embodiment, described level meter 5 is leveling bubble formula level meter.
Leveling bubble formula level meter structure is simple, easy to use.
Embodiment three: present embodiment is described in conjunction with Fig. 2, present embodiment is the further restriction to the general calibration lever of key slot type drum reaction type brake platform described in embodiment one, in present embodiment, the radius of the circular arc of described key slot type grab 3 inner sides is 60mm.
Conventionally the radius roller of key slot type drum-type brake test bench is 60mm.
Embodiment four: present embodiment is described in conjunction with Fig. 2, present embodiment is the further restriction to the general calibration lever of key slot type drum reaction type brake platform described in embodiment one, in present embodiment, N=2, two pallet locating slots 6 lay respectively at the centre of lever construction 1 and the one end away from key slot type grab 3.
Under normal circumstances, two pallet locating slots 6 are enough to meet calibrating needs.The lever ratio that is positioned at middle pallet locating slot 6 correspondences of calibration lever is 1:5, and the lever ratio that is positioned at pallet locating slot 6 correspondences of calibration lever one end is 1:10.
Embodiment five: present embodiment is described in conjunction with Fig. 2, present embodiment is the further restriction to the general calibration lever of key slot type drum reaction type brake platform described in embodiment one, in present embodiment, the length of the horizontal component of described lever construction 1 is 600mm.
Claims (5)
1. the general calibration lever of key slot type drum reaction type brake platform, it is characterized in that: it comprises lever construction (1) and weight tray (2), described lever construction (1) in horizontal direction, the front end of described lever construction (1) is provided with key slot type grab (3), described key slot type grab (3) inner side is 90 degree circular arcs, the radius of described circular arc is identical with the radius roller of key slot type drum reaction type brake platform, key slot type grab (3) front end is provided with the plate-like structure (4) radially extending to circular arc inner side along circular arc, described plate-like structure (4) is corresponding with cylinder keyway, be used for hooking cylinder keyway, on described lever construction (1), be provided with level meter (5), on described lever construction (1), be provided with N measure-alike pallet locating slot (6), N is greater than 1 integer, described N pallet locating slot (6) is all unequal to the distance of key slot type grab (3).
2. the general calibration lever of key slot type drum reaction type brake platform according to claim 1, is characterized in that: described level meter (5) is leveling bubble formula level meter.
3. the general calibration lever of key slot type drum reaction type brake platform according to claim 1, is characterized in that: the radius of the circular arc of described key slot type grab (3) inner side is 60mm.
4. the general calibration lever of key slot type drum reaction type brake platform according to claim 1, is characterized in that: N=2, two pallet locating slots (6) lay respectively at the centre of lever construction (1) and the one end away from key slot type grab (3).
5. according to the general calibration lever of key slot type drum reaction type brake platform described in claim 1 or 4, it is characterized in that: the length of the horizontal component of described lever construction (1) is 600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833145.0U CN203595582U (en) | 2013-12-17 | 2013-12-17 | General calibration lever for keyway type roller counterforce type brake test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833145.0U CN203595582U (en) | 2013-12-17 | 2013-12-17 | General calibration lever for keyway type roller counterforce type brake test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595582U true CN203595582U (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320833145.0U Expired - Fee Related CN203595582U (en) | 2013-12-17 | 2013-12-17 | General calibration lever for keyway type roller counterforce type brake test bench |
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| CN (1) | CN203595582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502013A (en) * | 2014-12-11 | 2015-04-08 | 力帆实业(集团)股份有限公司 | Quick detection device for stress of spline of rear brake shaft of motorcycle |
-
2013
- 2013-12-17 CN CN201320833145.0U patent/CN203595582U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502013A (en) * | 2014-12-11 | 2015-04-08 | 力帆实业(集团)股份有限公司 | Quick detection device for stress of spline of rear brake shaft of motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |