CN2876697Y

CN2876697Y - Step type thickness measuring scale

Info

Publication number: CN2876697Y
Application number: CN 200520135437
Authority: CN
Inventors: 康惊涛; 陈华
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-23
Filing date: 2005-12-23
Publication date: 2007-03-07
Anticipated expiration: 2015-12-23

Abstract

The utility model discloses a step thickness measurement chi, it relates to a length dimension measuring instrument, especially a special measuring instrument of measuring work piece thickness. Have the benchmark ruler and relative with the benchmark ruler and keep fixed distance's dipperstick between and on the step thickness measurement chi, the dipperstick be the ladder shape with the relative one side of benchmark ruler, each ladder of dipperstick on have a face to be the measuring surface that parallels with the benchmark on the benchmark ruler. The utility model provides a measuring basis that exists on the present railway in measuring pantograph slide thickness difficult confirm, measure the more difficult, the fragile problem of slider of count.

Description

Step thickness measure chi

Technical field

The utility model relates to a kind of length dimension measuring appliance, particularly a kind of special measurement utensil of measuring workpieces thickness.

Background technology

The development of railway makes its traction power equipment become extremely important.At present China railways comprises that urban track traffic mostly adopts electric locomotive traction.Thereby electric locomotive generally is to contact with contact net to be flowed by the pantograph that install on locomotive top to make locomotive obtain energy, because locomotive is to adjust motion, thereby the contact point of pantograph and contact net also moves, and promptly there are sliding friction in pantograph and contact net like this.In service at locomotive, friction must make the contact portion of motorcycle pantograph and contact net all produce abrasion.Consider the requirement of repair and maintenance economy, generally wearing chunk, i.e. pantograph pan are installed specially at motorcycle pantograph.Slide plate directly contacts with contact line conducting wire on the one hand and is flowed, and it also constantly is worn away at the volley on the other hand.Traditional pantograph pan is the powder metallurgy slide plate, and there be the low and problem more serious to the abrasion of contact net of conductance in this slide plate.Thereby progressively replaced by the carbon slide plate.For guaranteeing the safe and reliable of pantograph operation, daily must the detection pantograph pan thickness detected main contents for measuring slide plate thickness, and this is operated in the each warehouse-in of locomotive and reorganizes and outfit Shi Junxu and carry out.

Now the measurement of pantograph pan thickness is all measured its thickness with ruler, before arriving limit of wear, in time changed to guarantee it.According to TSA-2000 type pantograph operation instructions, its limit has two kinds of requirements: the one, be not less than 24mm apart from the guide yoke bottom thickness, and for measuring carriage and the slide plate junction distance apart from the slide plate top, this thickness is not less than 3mm on the other hand.According to by first kind of requirement, need to measure from whole slide plate bottom, measuring method is that ruler is directly measured at present, because ruler is measured the bottom that starting point can't directly be positioned the slide plate measuring basis, simultaneously can't guarantee that also sled surface directly contacts with the ruler scale mark, thereby measuring error is bigger, and general scene is all without the method.

In practice adopt second kind of measuring method more, i.e. carriage measuring method, this is that the slide plate bottom is contacted with the carriage bottom surface, dip stick is a reference measurement with the carriage bottom surface.But in practice because each manufacturer and production batch difference, bracket size is unfixing, and because the existence of the outer side guard plate of slide plate, make carriage and slide plate joint portion also not obvious, and consistance is relatively poor, thereby this kind measuring method when being measured human factor to influence error still bigger, thereby influence security and the economy that pantograph is used.

Above-mentioned two kinds of bigger main causes of measuring method measuring error are because measuring basis be can not determine and tested thing and graduation range cause the difficult problem of reading more greatly.For head it off, the most direct effective way is to adopt slide calliper rule to test, and measuring method can guarantee to obtain very good measurement result.But because slide calliper rule are fine measuring instrument, the main problem that this kind measuring method exists is, its environment for use using method is bigger to its life-span influence, especially its slip locating device, more can not adapt to every day with locomotive needs often about the testing staff, and use slide calliper rule to exist and waste one's talent on a petty job and the flimsy problem of sliding part.

The utility model content

For solving the problem that prior art exists, the utility model provides a kind of step thickness measure chi, and it has solved, and the measuring basis that exists when measuring pantograph pan thickness on the present railway is difficult for determining, measurement count is difficult, the flimsy problem of sliding part.

Have on the step thickness measure chi of the present utility model standard rule and relative with standard rule and between be maintained fixed the dip stick of distance, the one side that described dip stick is relative with standard rule is stairstepping, and it is the measurement face that parallels with benchmark survey face on the standard rule that a face is arranged on each ladder of described dip stick.

Further, step thickness measure chi of the present utility model can also have following characteristics: adjacent two ladders measurement face to the difference of the distance between the benchmark survey face of standard rule equates on the dip stick.

Further, step thickness measure chi of the present utility model can also have following characteristics: on each ladder of dip stick all mark have measure identity distance from the benchmark of standard rule survey face apart from size numerical value.

The utility model is the method that adopts the step scale, and the benchmark survey face that each ladder of its dip stick is measured face and standard rule 1 is parallel to each other, and the distance between two ladder measurement faces is definite according to measuring accuracy.Each ladder is measured the identity distance benchmark and is surveyed identity distance from fixing, and distance value is labeled on the dip stick.During measurement the benchmark of step thickness measure chi is surveyed face and closely be attached to the guide yoke bottom faces, slide plate thickness difference, the cascaded surface of its upper surface contact is also different.The direct like this ladder with the slide plate contact is measured the corresponding dimensioning numerical value of face, is slide plate thickness.This kind method makes the carriage bottom surface contact with the benchmark survey face of standard rule, has solved the positioning reference problem.Ladder is measured the wearing surface that face directly contacts slide plate, and is marked with the distance of measurement identity distance from benchmark survey face at the ladder subscript, has solved the problem of reading difficulty.There is not slide unit in dip stick, the flimsy problem of measuring appliance that has existed when therefore having solved kind of calliper.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Among the last figure, the 1-standard rule, the 2-dip stick, the 3-ladder, the 4-reference side, 5-measures face, 6-length dimension scale mark.

Embodiment

Consult accompanying drawing below and the utility model done detailed explanation with best embodiment:

Consult Fig. 1, have on the step thickness measure chi of present embodiment standard rule 1 and relative with standard rule 1 and between be maintained fixed the dip stick 2 of distance, described dip stick 2 and standard rule 1 relative one side is stairstepping, have on each ladder 3 of described dip stick 2 face be with standard rule 1 on benchmark survey the measurement face 5 that face 4 parallels.On the described standard rule 1 length dimension scale mark 6 is arranged.The ladder of described dip stick 2 is measured face 5 and is connected with standard rule 1 apart from standard rule 1 a nearest end.Described dip stick 2 is an one-piece construction with standard rule 1.Step thickness measure chi is U-shaped like this, and the opening part of its lower end is convenient to put into tested workpiece.The length L that each ladder is measured face 5 on the dip stick 2 equates, and L is 3-10mm, and the best is 5mm, can guarantee that like this measurement face 5 contacts with tested slide plate upper surface.Every adjacent two ladders are measured the difference that face 5 surveys the distance between the face 4 to the benchmark of standard rule 1 and are equated on the dip stick 2, and difference is 1mm, and this difference is determined according to the accuracy requirement of measuring.On each ladder 3 of dip stick 2 all mark have measurement face 5 apart from the benchmark of standard rule survey face 4 apart from size numerical value, the size numerical value of surveying the measurement face 5 of the nearest step of face 4 apart from benchmark is 21mm.Above-mentioned dip stick adopts benchmark to survey face and ladder is measured face, has solved no benchmark and reading during ruler is measured and has been inconvenient to the problem that causes measuring error bigger; Replace slide calliper rule with ladder measurement face, solved the slide calliper rule slip and caused measurer short and inconvenient problem with use in serviceable life.The core of above-mentioned dip stick is stair-stepping measurement face, in surveying work, the benchmark of standard rule is surveyed face and the guide yoke bottom surface fits tightly, and then chi is snapped in slide plate and carriage, and it is inwardly pushed, and touches the slide plate upper surface up to ladder measurement face.At this moment, ladder measures face and benchmark is surveyed identity distance from being slide plate thickness, and this gauge is labeled in ladder and measures the face top, can directly read.It is accurate than ruler that this method is measured, convenient, practical than slide calliper rule.Utilize above-mentioned dip stick to measure, can thoroughly change the problem that slide plate thickness that present electric locomotive pantograph sliding plate thickness measure difficulty caused can not accurately be grasped, thereby guarantee the replacing promptly and accurately of slide plate, slide plate safety in utilization and economy all are guaranteed.Change the present slide plate that exists and after limit, can not in time change bow net potential safety hazard of bringing and the manpower and materials waste that causes, and alleviated the daily measurement difficulty of testing staff to limit replacing in advance.

Claims

1, step thickness measure chi, it is characterized in that: have on the described step thickness measure chi standard rule (1) and relative with standard rule (1) and between be maintained fixed the dip stick (2) of distance, the one side that described dip stick (2) is relative with standard rule (1) is stairstepping, have on each ladder (3) of described dip stick (2) a face be with standard rule (1) on benchmark survey the measurement face (5) that face (4) parallels.

2, step thickness measure chi according to claim 1 is characterized in that: the ladder of described dip stick (2) is measured face (a 5) end nearest apart from standard rule (1) and is connected with standard rule (1).

3, step thickness measure chi according to claim 2 is characterized in that: described dip stick (2) is an one-piece construction with standard rule (1).

4, step thickness measure chi according to claim 1 is characterized in that: the length L that dip stick (2) is gone up each ladder measurement face (5) equates.

5, step thickness measure chi according to claim 4, it is characterized in that: described length L is 3-10mm.

6, step thickness measure chi according to claim 1 is characterized in that: it is equal to the difference of the distance between the benchmark survey face (4) of standard rule (1) that dip stick (2) is gone up every adjacent two ladders measurement faces (5).

7, according to claim 1,2,3,4,5 or 6 described step thickness measure chis, it is characterized in that: length dimension scale mark (6) is arranged on the described standard rule (1).

8, according to claim 1,2,3,4,5 or 6 described step thickness measure chis, it is characterized in that: on each ladder (3) of dip stick (2) all mark have measurement face (5) apart from the benchmark of standard rule survey face (4) apart from size numerical value.

9, step thickness measure chi according to claim 7 is characterized in that: on each ladder (3) of dip stick (2) all mark have measurement face (5) apart from the benchmark of standard rule survey face (4) apart from size numerical value.