CN205537446U - Dedicated laser wheel base measuring apparatu of passenger train - Google Patents
Dedicated laser wheel base measuring apparatu of passenger train Download PDFInfo
- Publication number
- CN205537446U CN205537446U CN201620196297.8U CN201620196297U CN205537446U CN 205537446 U CN205537446 U CN 205537446U CN 201620196297 U CN201620196297 U CN 201620196297U CN 205537446 U CN205537446 U CN 205537446U
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- China
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- rotating shaft
- card base
- laser
- passenger vehicle
- guide hole
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Abstract
The utility model discloses a dedicated laser wheel base measuring apparatu of passenger train, laser wheel base measuring apparatu include two fixed fixture and be fixed in a laser emission device and a laser -bounce board on the fixed fixture respectively separately, fixed fixture include the fixed frame of rectangle, pivot, interfix piece, clench nail, first calorie of foot, second card foot and pivot handle, the utility model discloses according to how much principles " four summits of rectangle are all using cornerwise point of intersect to realize as the same of the centre of a circle ", designed the fixed fixture of rectangle that long limit can be adjusted, can realize the pinpointing of the tire centre of a circle, gaging spindle that can be accurate apart from and the wheel base poor, realize the front and back, control, the ascending measurement of upper and lower hexagonal and adjustment, and can look over the adjustment effect after the adjustment at any time at the time dismounting device not of adjustment to according to the effect readjustment, simple structure, convenient to use, the cost is lower, is fit for being widely used.
Description
Technical field
This utility model relates to the wheelbase of passenger vehicle and measures, particularly to the special laser axis of a kind of passenger vehicle away from measuring instrument and passenger vehicle wheelbase difference measurements method.
Background technology
Vehicle wheel base difference, refer to automobile when keeping straight on, difference between the wheelbase of wheel shaft before and after the left and right both sides of automobile.Automobile in use, due to vehicle frame, vehicle bridge deform, play, the reasons such as U-bolts loosens, vehicle bridge connecting portion generation abrasion, then the left and right axle of automobile can be made to produce certain wheelbase poor.When this difference exceedes certain limit, just influencing whether that the serviceability of automobile, the particularly impact on vehicle handling stability, roadholding, automotive wheel sideslip, tire wear etc. are the most notable, the economic loss and the potential danger that are caused can not be ignored.
Do not have in bus coating enterprise special can accurately measurement axis away from instrument.At present the most popular method is to use box chi to measure Y-axis respectively away from seeking difference, ensure Y-axis away from error, but this method error is the biggest, time-consuming, laborious, strong influence production efficiency.Automobile Axle Depth of Unparallelism Testing Method and the device of development of practical are significant.
Bus industry belongs to small profit trade, and the instrument that cost is high, precision is high often cannot use in high volume.Wheelbase alignment error is less demanding, it is not necessary to the most accurate instrument；Wheelbase error according to Standard is 1/1000, and therefore measurement error can meet production requirement at 2 millimetre-sized equipment.Research and development one convenient, with low cost, the measurement error of the operation special wheelbase measuring device of passenger vehicle within ± 2mm.The most helpful for improving passenger vehicle wheelbase certainty of measurement and production efficiency.
Utility model content
This utility model purpose is: provide the special wheelbase measuring device of a kind of passenger vehicle and passenger vehicle wheelbase difference measurements method, it is achieved low cost, in high precision, purpose simple to operate.
The technical solution of the utility model is:
The special laser axis of a kind of passenger vehicle is away from measuring instrument, and the laser beam emitting device including two holding clamps and being each secured to respectively on a holding clamp and laser-bounce plate, before and after during measurement, two holding clamps are stuck in passenger vehicle respectively on tire；Described holding clamp includes the fixed frame of rectangle, rotating shaft, interfix block, fastening nail, the first card base, the second card base and rotating shaft handle；Described first card base, interfix block and the second card base are all placed on two side frame bodies of fixed frame by the guide hole at two ends, interfix block is provided with the fastening screw of at least one and the conducting of two ends guide hole, and interfix block is fastened with fixed frame by fastening nail by fastening screw；Described rotating shaft is centered by middle part, surface, both sides is provided with screw thread in opposite direction, rotating shaft sequentially passes through the middle part guide hole of the first card base, interfix block and the second card base, the middle part guide hole of interfix block is positioned in the middle part of rotating shaft, is provided with, in the middle part guide hole of the first card base and the second card base, the screw thread that rotating shaft is suitable；The two ends of described rotating shaft are each passed through the guide hole in the framework of fixed frame two ends, and one end of rotating shaft is fixed with rotating shaft handle, and the other end is provided with limiting section；Fixing two legs vertical and symmetrical with rotating shaft on described first card base, the second card base respectively, described leg front end is provided with locating groove.
Preferably, can relative slide between described first card base, the second card base, interfix block and fixed frame.
Preferably, the pitch of described rotating shaft both sides thread surface is identical, and during manual rotation rotating shaft handle, the first card base, the second card base move along fixed frame with identical speed.
Preferably, by the middle part guide hole of interfix block in the middle part of rotating shaft, the most contactless.
Preferably, described laser beam emitting device and laser-bounce plate are respectively arranged on the interfix block of holding clamp, and angle rotatable.
Preferably, described laser-bounce plate is drawn surely there is size of mesh opening line.
The method that laser axis measures passenger vehicle wheelbase difference away from measuring instrument, including step:
Take two set laser axis away from measuring instrument, be respectively used to measure the distance between axles of the tire of passenger vehicle both sides simultaneously；
Two holding clamps being provided with laser beam emitting device and laser-bounce plate are separately fixed in passenger vehicle front and back wheel, locating slot on two card bases is adjacent to the outer of tyre rim, adjusting reflecting plate and keep vertical direction, the laser beam adjusting laser beam emitting device is irradiated on laser-bounce plate accurately；
The number of degrees read on the reflector of the passenger vehicle left and right sides respectively contrast with theoretical values again, check deviation before and after front-rear axle, ensure that front-rear axle axis is parallel after adjustment；
The position being radiated in baffle grid according to laser beam, then contrast with theoretical values, front-rear axle is carried out left and right and adjusts up and down, until front and back wheel is positioned in a rectangle, the wheelbase measuring both sides is poor.
Preferably, laser axis is consistent away from the measuring instrument mounting means in the passenger vehicle left and right sides, i.e. the holding clamp with laser beam emitting device is installed on front-wheel or trailing wheel simultaneously.
Preferably, before measuring passenger vehicle wheelbase difference, first laser axis is carried out center calibration away from measuring instrument: unclamped by fastening nail, two card bases are moved in the middle part of rotating shaft by rotating shaft handle, make that two card bases are all seamless with interfix block to be contacted, fastening fastening nail again, it is ensured that during operation rotating shaft handle, interfix block position is all the time in the middle of two card bases.
The utility model has the advantages that:
This utility model, according to geometrical principle " four summits of rectangle are all on the same circle with cornerwise intersection point as the center of circle ", devise the rectangle holding clamp that a long limit can regulate, can realize being accurately positioned the tire center of circle.This device can accurately measurement axis away from and wheelbase poor, it is achieved the measurement around, on upper and lower six directions and adjustment；And can check Adjustment effect after adjustment at any time in the time not provision for disengagement adjusted, and adjust according to effect, simple in construction again, easy to use, cost is relatively low, is suitable for being widely used.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Fig. 1 is the laser axis with the laser beam emitting device described in the utility model top view away from measuring instrument；
Fig. 2 is the laser axis with the laser beam emitting device described in the utility model left view away from measuring instrument；
Fig. 3 is the front view with laser beam emitting device laser axis away from measuring instrument described in the utility model；
Fig. 4 is the laser axis with the laser-bounce plate described in the utility model left view away from measuring instrument.
Detailed description of the invention
Passenger vehicle wheelbase is from 3.3 meters to 6.5 meters, and maximum axle spacing is no more than 6.5 meters, and according to GB millesimal certainty of measurement requirement, precision laser surveying instrument within ± 2mm just can meet the requirement of bus coating.Carry out selecting contrast to the numerous laser devices on market according to these features.Through contrast, Hong Kong is compared in the aggregative indicator of cost and performance as deep as the SW-40 type hand-held laser rangefinder that prestige Instrument Ltd. produces and is met the practical situation produced on passenger vehicle.This device maximum effective range is 40 meters, and the certainty of measurement when its maximum measurement distance is ± 2mm, and precision can be calibrated automatically, and instrument can be measured 100 times continuously.
The center of circle how utilizing frame for movement to search out tire accurately is maximum technological difficulties.Utilize geometrical principle: if the four of rectangle summits are all on circle, then the cornerwise intersection point of this rectangle is exactly the center of circle of this circle.The steel ring of tire is a regular circle, then needs to make that a long limit can regulate, the fabrication error rectangle holding clamp at ± 0.5mm according to principle, can realize being accurately positioned the tire center of circle.
As Figure 1-3, top view, left view and the front view away from measuring instrument of the laser axis with laser beam emitting device 8 it is respectively.Described holding clamp includes the fixed frame 1 of rectangle, rotating shaft 2, interfix block 3, fastening nail the 4, first card base the 51, second card base 52 and rotating shaft handle 6.
Described first card base 51, interfix block 3 and the second card base 52 are all placed on two side frame bodies of fixed frame 1 by the guide hole at two ends, described first card base the 51, second card base 52, can relative slide between interfix block 3 and fixed frame 1.Interfix block 3 is provided with the fastening screw of at least one and the conducting of two ends guide hole, and interfix block 3 is fastened with fixed frame 1 by fastening nail 4 by fastening screw.
Described rotating shaft 2 is centered by middle part, surface, both sides is provided with screw thread in opposite direction, rotating shaft 2 sequentially passes through the first card base 51, interfix block 3 and the middle part guide hole of the second card base 52, the middle part guide hole of interfix block 3 is positioned in the middle part of rotating shaft 2, it is provided with, in the middle part guide hole of the first card base 51 and the second card base 52, the screw thread that rotating shaft 2 is suitable, by the middle part guide hole of interfix block 3 in the middle part of rotating shaft 2, the most contactless.The two ends of described rotating shaft 2 are each passed through the guide hole in the framework of fixed frame 1 two ends, and one end of rotating shaft 2 is fixed with rotating shaft handle 6, and the other end is provided with limiting section 7；The pitch of described rotating shaft 2 both sides thread surface is identical, and during manual rotation rotating shaft handle 6, first card base the 51, second card base 52 moves along fixed frame 1 with identical speed.
Fixing two legs 53 vertical and symmetrical with rotating shaft 2 respectively on described first card base the 51, second card base 52, described leg front end is provided with locating groove 54.
As shown in Figure 4, with left view away from measuring instrument of the laser axis of laser-bounce plate 9.Described laser beam emitting device 8 and laser-bounce plate 9 are respectively arranged on the interfix block 3 of holding clamp, and angle rotatable.Draw on described laser-bounce plate and surely have size of mesh opening line.
Method that laser axis away from measuring instrument measure passenger vehicle wheelbase difference is described below, said method comprising the steps of.
Take two set laser axis away from measuring instrument, be respectively used to measure the distance between axles of the tire of passenger vehicle both sides simultaneously；Before measuring passenger vehicle wheelbase difference, first laser axis is carried out center calibration away from measuring instrument: unclamped by fastening nail, two card bases are moved in the middle part of rotating shaft by rotating shaft handle, make that two card bases are all seamless with interfix block to be contacted, fastening fastening nail again, when guaranteeing to operate rotating shaft handle, interfix block position is all the time in the middle of two card bases.
Two holding clamps being provided with laser beam emitting device and laser-bounce plate are separately fixed in passenger vehicle front and back wheel, laser axis wants consistent away from the measuring instrument mounting means in the passenger vehicle left and right sides, i.e. the holding clamp with laser beam emitting device is installed on front-wheel or trailing wheel simultaneously.
Locating slot on two card bases is adjacent to the outer of tyre rim, adjusts reflecting plate and keeps vertical direction, and the laser beam adjusting laser beam emitting device is irradiated on laser-bounce plate accurately.
The number of degrees read on the reflector of the passenger vehicle left and right sides respectively contrast with theoretical values again, check deviation before and after front-rear axle, ensure that front-rear axle axis is parallel after adjustment；
The position being radiated in baffle grid according to laser beam, then contrast with theoretical values, front-rear axle is carried out left and right and adjusts up and down, until front and back wheel is positioned in a rectangle, the wheelbase measuring both sides is poor.Measurement error value can ensure within 2mm.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All modifications done according to the spirit of this utility model main technical schemes, all should contain within protection domain of the present utility model.
Claims (6)
1. the laser axis that passenger vehicle is special is away from a measuring instrument, and the laser beam emitting device including two holding clamps and being each secured to respectively on a holding clamp and laser-bounce plate, before and after during measurement, two holding clamps are stuck in passenger vehicle respectively on tire；It is characterized in that: described holding clamp includes the fixed frame (1) of rectangle, rotating shaft (2), interfix block (3), fastening nail (4), the first card base (51), the second card base (52) and rotating shaft handle (6)；
Described first card base (51), interfix block (3) and the second card base (52) are all placed on by the guide hole at two ends on two side frame bodies of fixed frame (1), interfix block (3) is provided with the fastening screw of at least one and the conducting of two ends guide hole, and interfix block (3) is fastened with fixed frame (1) by fastening nail (4) by fastening screw；
Described rotating shaft (2) is centered by middle part, surface, both sides is provided with screw thread in opposite direction, rotating shaft (2) sequentially passes through the first card base (51), interfix block (3) and the middle part guide hole of the second card base (52), the middle part guide hole of interfix block (3) is positioned at rotating shaft (2) middle part, is provided with the screw thread that rotating shaft (2) is suitable in the middle part guide hole of the first card base (51) and the second card base (52)；The two ends of described rotating shaft (2) are each passed through the guide hole in the framework of fixed frame (1) two ends, and one end of rotating shaft (2) is fixed with rotating shaft handle (6), and the other end is provided with limiting section (7)；
Fixing two legs (53) vertical and symmetrical with rotating shaft (2) on described first card base (51), the second card base (52) respectively, described leg front end is provided with locating groove (54).
The special laser axis of passenger vehicle the most according to claim 1 is away from measuring instrument, it is characterised in that: described first card base (51), the second card base (52), interfix block (3) can relative slide between fixed frame (1).
The special laser axis of passenger vehicle the most according to claim 1 is away from measuring instrument, it is characterized in that: the pitch of described rotating shaft (2) both sides thread surface is identical, during manual rotation rotating shaft handle (6), the first card base (51), the second card base (52) are mobile along fixed frame (1) with identical speed.
The special laser axis of passenger vehicle the most according to claim 1 is away from measuring instrument, it is characterised in that: rotating shaft (2) middle part middle part guide hole by interfix block (3), the most contactless.
The special laser axis of passenger vehicle the most according to claim 1 is away from measuring instrument, it is characterised in that: described laser beam emitting device and laser-bounce plate are respectively arranged on the interfix block (3) of holding clamp, and angle rotatable.
The special laser axis of passenger vehicle the most according to claim 1 is away from measuring instrument, it is characterised in that: draw on described laser-bounce plate and surely have size of mesh opening line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196297.8U CN205537446U (en) | 2016-03-15 | 2016-03-15 | Dedicated laser wheel base measuring apparatu of passenger train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196297.8U CN205537446U (en) | 2016-03-15 | 2016-03-15 | Dedicated laser wheel base measuring apparatu of passenger train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205537446U true CN205537446U (en) | 2016-08-31 |
Family
ID=56781765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620196297.8U Withdrawn - After Issue CN205537446U (en) | 2016-03-15 | 2016-03-15 | Dedicated laser wheel base measuring apparatu of passenger train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205537446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783664A (en) * | 2016-03-15 | 2016-07-20 | 金龙联合汽车工业（苏州）有限公司 | Laser wheel base measuring instrument especially for passenger car and measuring method for wheel base difference of passenger car |
| CN110749266A (en) * | 2019-11-29 | 2020-02-04 | 安徽江淮汽车集团股份有限公司 | Engine suspension detection device |
-
2016
- 2016-03-15 CN CN201620196297.8U patent/CN205537446U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783664A (en) * | 2016-03-15 | 2016-07-20 | 金龙联合汽车工业（苏州）有限公司 | Laser wheel base measuring instrument especially for passenger car and measuring method for wheel base difference of passenger car |
| CN105783664B (en) * | 2016-03-15 | 2018-10-23 | 金龙联合汽车工业（苏州）有限公司 | A kind of dedicated laser axis of car is away from measuring instrument and car wheelbase difference measurements method |
| CN110749266A (en) * | 2019-11-29 | 2020-02-04 | 安徽江淮汽车集团股份有限公司 | Engine suspension detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20181023 |