CN105135974A - Rotary lever indicator - Google Patents
Rotary lever indicator Download PDFInfo
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- CN105135974A CN105135974A CN201510605792.XA CN201510605792A CN105135974A CN 105135974 A CN105135974 A CN 105135974A CN 201510605792 A CN201510605792 A CN 201510605792A CN 105135974 A CN105135974 A CN 105135974A
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- lever meter
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to measurement field, in particular a rotary lever indicator in machine manufacturing and mechanical parts processing. The rotary lever indicator includes a casing body, a measuring part and an indicating part. The measuring part includes a measuring lever. The indicating part includes a pointer and a dial. The casing body receives a drive mechanism between the measuring lever and the pointer. The casing body is provided with a side surface for manually gripping and at least one fixed surface which is provided with an installing structure. The rotary lever indicator is characterized in that: the indicating part also includes a revolving body, and at least part of the revolving body is positioned inside the casing body. The revolving body is provided with a rotary shaft which is coaxially with at least one gear of the drive mechanism. The indicating part, via the rotary connection between the revolving body and the casing body, leaves a rotary trail which is perpendicular to the plane of the dial. When the lever indicator and the workpiece to be measured are at a best measuring position, the revolving body is rotated to drive the indicating part so as to enable the sight of a measuring personnel and the lever indicator to be positioned at an optimal visual direction therebetween.
Description
Technical field
The present invention relates to fields of measurement, particularly relate to the measurement instrument of machine-building and mechanical component processing.
Background technology
For controlling each portion size and the precision of parts in machining, need to be equipped with multiple measuring equipment.Wherein, arm indicator because its measuring accuracy is high, volume is little, reliable and be widely used.
The measuring error of lever meter is by improper the brought observational error of this instrument error, the environmental error caused by measurement environment and operating personnel's method of operating brought in manufacturing process or design concept of surveying instrument.Wherein, observational error is often much larger than instrument error and environmental error; In addition, observational error often has uncertainty, cannot revise.So when using lever meter to measure, want to reach its due measuring accuracy, the professional degree measuring operating personnel seems more important.
Shown in Fig. 1, when lever meter need be fixed on special stand when measuring, and the position adjusting lever meter and measured workpiece makes to be in best measurement position.Wherein, best measurement position refer to the measuring staff axis of lever meter and tested surface shape at a certain angle.To the measurement of workpiece planarization flatness, the axis of the measuring staff of lever meter should be parallel to tested plane; To the measurement of curve surface of workpiece flatness, the axis of the measuring staff of lever meter is parallel with the tangent plane of tested curved surface, otherwise can produce larger error.During reading, dial plate should be in optimal visibility orientation, makes sight line and indicator plane orthogonal, prevents anorthopia from causing reading error.And when lever meter is in best measurement position, dial plate is not necessarily also just in time in optimal visibility orientation.Even can't see complete dial plate completely in some occasion, in practical operation, survey crew is in order to read value, and face must near lathe and workpiece, and operating space is narrow, has potential safety hazard.Businessman releases end face as shown in Figure 2 depending on the lever meter of multiple dial plate type of attachment such as looking, to adapt to the needs of various occasion with end face for this reason.If but when best measurement position, between corresponding optimal visibility orientation is in top view and faces, then usually only sacrifice best measurement position and optimal visibility orientation, select middle selection one the most preferably measurement scheme.But measuring position in this case and visual perspective can not reach best, cause measuring error to increase simultaneously.
Summary of the invention
The invention provides a kind of swinging lever meter, the dial plate of whole reading part can the manual free pivot angle of housing relatively.Improve the visuality of dial plate to greatest extent, in multiple use occasion, realize the unification in best measurement position and optimal visibility orientation, to overcome the problems of the prior art.
A kind of swinging lever meter, comprises housing, measurement section and instruction unit; Described measurement section comprises measuring staff; Described instruction unit comprises pointer and index dial; Gear train between the accommodating described measuring staff of described housing and described pointer, described housing has side for manually grasping and at least one is provided with the stationary plane of mounting structure.It is characterized in that: described instruction unit also comprises the solid of revolution being positioned at described housing at least partly, described solid of revolution has the revolving shaft coaxial with at least some gears of described gear train, and described instruction unit realizes instruction unit rotary motion trace perpendicular to described index dial plane by described solid of revolution and described being rotationally connected of housing.When being in best measurement position between described lever meter and measured workpiece, fixing described housing keeps the best measurement position of described lever meter and measured workpiece, rotates described solid of revolution and drives described instruction unit to make to be in optimal visibility orientation between the sight line of survey crew and described lever meter.Achieve the unification in best measurement position and optimal visibility orientation.
Further, described instruction unit also comprises the pallet be positioned at outside described housing, and index dial described in pallet support described in instruction unit relatively rotating with described index dial is connected; Described solid of revolution is integrally formed with described pallet or be fixedly connected with.Described solid of revolution carries the relatively described housing into rotation of described index dial by described pallet is fixed thereon.
Further, described rotary disk is the T-shaped dish be made up of with vertical cylinder horizontal plate, its horizontal plate is fixedly connected with the bottom of described dial plate, and vertical cylinder inserts the notch part of described housing, vertical cylinder sidewall is provided with symmetrical two minor axises perpendicular to cylindrical shell axial line, and two minor axises are installed on the bearing set by housing notch part inwall; Described first order driven gear and described second level driving gear are coaxially arranged in described vertical cylinder, described first order driven gear and the described second level are then installed on the bearing set by the inner face that described rotary disk two minor axis is positioned at vertical cylinder by the gear shaft two ends of main drive gear, and gear shaft and rotary disk two minor axis have same axial line, invariable to realize the first order gear pair centre distance when rotary disk freely rotates, guarantee that measurement section normally works.The needle pivot of horizontal plate and dial plate that its central shaft of the second driven gear passes T-shaped dish is connected.
Further, described solid of revolution has the revolving shaft coaxial with at least some gears of described gear train.So that being in transmission connection in described gear train between any adjacent two-stage gear train can not be affected in the process guaranteeing the relatively described housing into rotation of described solid of revolution.
Further, described revolving shaft two ends are installed in the bearing be located on described housing; The separated formative gear installation portion at described revolving shaft two ends, the gear being installed on this is coaxial with described revolving shaft.When described solid of revolution around described revolving shaft relatively described housing into rotation time, the gear be installed in described gear installation portion still keeps being in transmission connection with its upper level and next stage transmission gear.
Further, described solid of revolution arranges the bearing bridge of pointer gear at described pointer axis extended position.
Further, rub between described solid of revolution and described housing and locate.Make the optional position that described instruction unit can be positioned in its rotary motion trace.Described housing outer surface arranges the trapezoidal rails for installing clamp column.Ensure that described lever meter can be arranged on special support in multiple orientation.
As preferably, arrange friction disc between described solid of revolution and described housing, described friction disc is relative with described housing fixing.Described friction disc produces frictional damping between described solid of revolution and described housing, makes described instruction unit can be positioned at any angular position in rotation process.
Further, described stationary plane arranges the trapezoidal rails for installing clamp column.Ensure that described lever meter can be arranged on special support in multiple orientation.
The present invention has following beneficial effect:
1. instruction unit described in can relatively described housing into rotation, and the wide-angle that lever meter can have end-surface type lever meter and front formula lever meter simultaneously measures visual angle.
2. within the slewing area of described instruction unit, the rotational angle continuously adjustabe of described instruction unit.Not only be confined to single measurement visual angle or each simple switching of measuring visual angle, but achieve the continuously adjustabe measuring visual angle.
3., while being in best measurement position between the described lever meter of guarantee and measured workpiece, rotating described instruction unit and make to be in optimal visibility orientation between the sight line of survey crew and described lever meter.Under the prerequisite not changing the original reading mechanism of lever meter and counting principle, decrease the error that measuring position and reading process are brought measurement result, the precision measured is improved greatly.
4. stopped the occasion that can't see complete dial plate at some completely, survey crew is in order to read value, and face must close lathe and the workpiece potential safety hazard that cause.
5. the present invention is simple and reasonable for structure, operates flexible and convenient to use, safe and reliable, changes and needs in different measuring position for a long time to change the onerous conditions adopting dissimilar lever meter, substantially increase and measure efficiency and measuring accuracy.
Accompanying drawing explanation
Fig. 1 lever meter uses schematic diagram;
Fig. 2 tradition lever meter schematic diagram;
A kind of swinging lever meter of Fig. 3 structural representation;
Along the cut-open view of A-A line in Fig. 4 Fig. 3;
A kind of swinging lever meter of Fig. 5 wiring layout;
Fig. 6 rotary disk structure schematic diagram;
Fig. 7 measurement section structural representation;
Fig. 8 pallet and the integrated lever meter of solid of revolution are along the cut-open view of A-A line in Fig. 3;
Fig. 9 solid of revolution and housing into rotation connection diagram.
Wherein, 5 friction discs, 11 sides, 12 stationary planes, 13 bearings, 21 measuring staffs, the fan-shaped driving gear of 31 first order, 32 first order driven gears, 33 second level driving gears, 34 pointer gears, 35 gear shafts, 41 pointers, 42 index dials, 43 solid of revolution, 44 pallets, 121 trapezoidal rails, 211 shift forks, 212 measuring staff axles, 311 fingers, 312 back-moving springs, 313 fan-shaped wheel shafts, 341 central shafts, 351 gear shaft bearings, 431 horizontal plates, 432 vertical cylinders, 433 bearing bridge, 4311 revolving shaftes.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described in detail.
A kind of swinging lever meter, comprises housing, measurement section and instruction unit.Measurement section comprises measuring staff 21, and instruction unit comprises pointer 41 and index dial 42, the gear train between the accommodating measuring staff 21 of housing and pointer 41.Housing has side for manually grasping 11 and at least one is provided with the stationary plane 12 of mounting structure.
Embodiment one
The dial plate of instruction unit comprises the graduated index dial 42 of mark and the pallet 44 for support index dial 42, and instruction unit is also positioned at the solid of revolution 43 of housing at least partly.Index dial 42 to be relatively rotated with pallet 44 by flexible members such as sealing strips and is connected.Pallet 44 is fixedly connected on by screw can the solid of revolution 43 of housing into rotation relatively, realizes instruction unit rotary motion trace perpendicular to index dial 42 plane.
Measurement section comprises the measuring staff 21 being provided with Z-shaped shift fork 211, the fan-shaped driving gear 31 of the first order that gear handle is provided with the finger 221 matched with Z-shaped shift fork, gear shaft 35, is coaxially arranged on first order driven gear 32 on gear shaft 35 and second level driving gear 33, and the fan-shaped driving gear 31 of the first order is meshed with first order driven gear 32.Second level driving gear 33 is connected with the needle pivot of pointer 41 by the central shaft 341 of the pointer gear 34 engaged with it.
The change of the linear position of the measured workpiece detected for fulcrum, is converted to angle change with its measuring staff axle 212 by measuring staff 21.Z-shaped shift fork 221 has two parallel up and down horizon bars, and two fingers 311 on the first order fan-shaped driving gear 31 gear handle are separately positioned on the below of horizon bar and the top of lower horizon bar, and the fan-shaped driving gear 31 of the first order is linked with measuring staff 21.The fan-shaped driving gear of the first order 31 under the drive of measuring staff 21 with its fan-shaped wheel shaft 313 for axis rotation.The fan-shaped driving gear of the first order 31 is also provided with the back-moving spring 312 of the balance first order fan-shaped driving gear 31 position.
As shown in Figure 7, the fan-shaped driving gear 31 of the first order and first order driven gear 32 form first order tooth gear train.First order driven gear 32 and second level driving gear 33 are coaxially arranged on the gear shaft 35 that is installed in gear shaft bearing 351 and realize synchronous axial system.Second level driving gear 33 and pointer gear 34 form second level tooth gear train.First order driven gear 32 engages with the fan-shaped driving gear 31 of the first order, and the angle accepting measuring staff 21 output changes and drives the coaxial second level driving gear 33 arranged to rotate identical angle.The radius of the radius ratio first order driven gear 32 of second level driving gear 33 is large, second level driving gear 33 and first order driven gear 32 synchronous axial system, amplify the angular metric from measuring staff 21 and be passed to pointer 41 by the pointer gear 34 engaged with second level driving gear 33 end face and show.
Solid of revolution 43 is the T-shaped dishes be made up of with vertical cylinder 432 horizontal plate 431, and its horizontal plate 431 is fixedly connected with the bottom of pallet 44, and vertical cylinder 432 inserts the notch part of described housing.Vertical cylinder 432 sidewall is provided with the revolving shaft 4311 perpendicular to cylindrical shell axial line, and the two ends of revolving shaft 4311 are installed in the bearing 13 of housing notch part inwall.The separated formative gear installation portion at revolving shaft 4311 two ends, first order driven gear 32 and the second level driving gear 33 of coaxial setting are installed in gear installation portion, and the gear shaft 35 of first order driven gear 32 and second level driving gear 33 is coaxial with revolving shaft 4311.Solid of revolution 43 arranges the bearing bridge 433 of pointer gear 34, and bearing bridge 433 is on the Axis Extension line of pointer 41.The horizontal plate 31 that its central shaft 341 of pointer gear 34 passes T-shaped dish is connected with pointer 41.
Conveniently instruction unit rotational angle is fixed, between housing notch part inwall and vertical cylinder 432 outer wall of solid of revolution 43, is provided with friction disc 5, and friction disc 5 is relative with housing fixing.Along with solid of revolution 43 relatively housing into rotation, the frictional damping that friction disc 5 produces can make the vertical cylinder 432 of solid of revolution 43 be fixed on any angular position in slewing area.
Conveniently rack-mount, stationary plane 12 arranges the trapezoidal rails 121 for installing clamp column.Trapezoidal rails 121 has level, vertical and tilt angularly.Can ensure that lever meter is rack-mount to realize best measurement position according to set measurement standard.
Embodiment two
Swinging lever meter described in embodiment two and embodiment one have many similarities, and for the sake of brevity, the present embodiment highlights its difference, and its something in common refers to the description of embodiment one.
In order to the convenience of assembling, pallet 44 a kind of for embodiment is designed to one with solid of revolution 43, as shown in Figure 8.
Now for the swinging lever meter described in embodiment one, the solid of revolution rotation process describing lever meter is as follows:
The solid of revolution 43 of rotating lever table, makes instruction unit be that axle center is at the rotation with in surface vertical with index dial 42 with revolving shaft 4311.
First order gear drive is rotatably installed in the vertical cylinder 432 of solid of revolution 43 by gear shaft 35, and gear shaft 35 and revolving shaft 4311 have same axial line.And the first order driven gear 32 of first order gear drive engages to realize being in transmission connection with the fan-shaped driving gear 31 of the first order, the synergy of back-moving spring 312 and finger 311 makes when solid of revolution 43 rotates, and the second level driving gear 33 engaged with pointer gear 34 end face can not rotate.Pointer gear 34 turns an angle at the end face of second level driving gear 33 relative second level driving gear 34, makes pointer gear 34 change to C position with the position of engagement of second level driving gear 33 by the B position in Fig. 3.
In solid of revolution 3 rotation process, the outer wall of vertical cylinder 32 rotates relative to housing notch part inwall, arranges friction disc 5 between which and produces frictional damping, makes solid of revolution 3 be fixed on any angular position in slewing area.Now, be fixedly mounted on index dial 42 on solid of revolution 3 also along with solid of revolution 3 rotates together, achieve index dial 42 and relatively keep first order gear pair (i.e. the fan-shaped driving gear of the first order 31 and first order driven gear 32) centre distance constant while housing into rotation.
The measuring process of swinging lever meter is as follows:
First, according to field condition, lever meter is arranged on professional support, makes the measuring staff 21 of lever meter and the position relationship of the tested surface of measured workpiece meet the requirement of best measurement position.
Secondly, keep the measuring staff 21 of lever meter constant with tested surface relative position, rotate solid of revolution 43, make solid of revolution 43 drive instruction unit to turn to be convenient for measuring the position corresponding to optimum measurement visual angle of personal observations's reading.
Finally, survey crew starts to measure and reads measurement result.
Although describe embodiments of the present invention by reference to the accompanying drawings, those of ordinary skill in the art can make various distortion or amendment within the scope of the appended claims.
Claims (7)
1. a swinging lever meter, comprises housing, measurement section and instruction unit; Described measurement section comprises measuring staff (21); Described instruction unit comprises pointer (41) and index dial (42); Gear train between the accommodating described measuring staff (21) of described housing and described pointer (41), described housing has side (11) for manually grasping and at least one is provided with the stationary plane (12) of mounting structure; It is characterized in that: described instruction unit also comprises the solid of revolution (43) being positioned at described housing at least partly, described solid of revolution (43) has the revolving shaft (4311) coaxial with at least some gears of described gear train, and described instruction unit realizes instruction unit rotary motion trace perpendicular to described index dial (42) plane by described solid of revolution and described being rotationally connected of housing.
2. a kind of swinging lever meter according to claim 1, it is characterized in that: described instruction unit also comprises the pallet (44) be positioned at outside described housing, index dial (42) described in pallet described in instruction unit (44) support relatively rotating with described index dial (42) is connected; Described solid of revolution (43) is integrally formed with described pallet (44) or be fixedly connected with.
3. a kind of swinging lever meter according to claim 2, is characterized in that: described revolving shaft (4311) two ends are installed in the bearing (13) be located on described housing; The separated formative gear installation portion at described revolving shaft (4311) two ends, the gear being installed on this is coaxial with described revolving shaft (4311).
4. a kind of swinging lever meter according to claim 3, is characterized in that: described solid of revolution (43) arranges the bearing bridge (433) of pointer gear (34) in described pointer (41) Axis Extension position.
5. a kind of swinging lever meter according to claim 1 or 2 or 3 or 4, is characterized in that: rub between described solid of revolution (43) and described housing and locate.
6. a kind of swinging lever meter according to claim 5, it is characterized in that: arrange friction disc (5) between described solid of revolution (43) and described housing, described friction disc (5) is relative with described housing fixing.
7. a kind of swinging lever meter according to claim 1, is characterized in that: described stationary plane (12) arranges the trapezoidal rails (121) for installing clamp column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605792.XA CN105135974A (en) | 2015-09-22 | 2015-09-22 | Rotary lever indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510605792.XA CN105135974A (en) | 2015-09-22 | 2015-09-22 | Rotary lever indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105135974A true CN105135974A (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510605792.XA Pending CN105135974A (en) | 2015-09-22 | 2015-09-22 | Rotary lever indicator |
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| Country | Link |
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| CN (1) | CN105135974A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506633A (en) * | 2018-11-29 | 2019-03-22 | 东华理工大学 | A kind of civil engineering range unit |
| WO2019128199A1 (en) * | 2017-12-28 | 2019-07-04 | 桂林市晶准测控技术有限公司 | Lever gauge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268246Y (en) * | 1996-03-29 | 1997-11-19 | 陈建勋 | Universal lever centigrade meter |
| CN2684141Y (en) * | 2004-03-03 | 2005-03-09 | 王卓生 | Double dial lever indicator and pictest |
| CN201034632Y (en) * | 2007-05-24 | 2008-03-12 | 东风汽车有限公司 | Universal serial lever meter clamp |
| JP2008309688A (en) * | 2007-06-15 | 2008-12-25 | Mitsutoyo Corp | Test indicator |
| JP2008309687A (en) * | 2007-06-15 | 2008-12-25 | Mitsutoyo Corp | Test indicator |
| CN205049065U (en) * | 2015-09-22 | 2016-02-24 | 湖州城区骏宇量具厂 | Rotation lever table |
-
2015
- 2015-09-22 CN CN201510605792.XA patent/CN105135974A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268246Y (en) * | 1996-03-29 | 1997-11-19 | 陈建勋 | Universal lever centigrade meter |
| CN2684141Y (en) * | 2004-03-03 | 2005-03-09 | 王卓生 | Double dial lever indicator and pictest |
| CN201034632Y (en) * | 2007-05-24 | 2008-03-12 | 东风汽车有限公司 | Universal serial lever meter clamp |
| JP2008309688A (en) * | 2007-06-15 | 2008-12-25 | Mitsutoyo Corp | Test indicator |
| JP2008309687A (en) * | 2007-06-15 | 2008-12-25 | Mitsutoyo Corp | Test indicator |
| CN205049065U (en) * | 2015-09-22 | 2016-02-24 | 湖州城区骏宇量具厂 | Rotation lever table |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128199A1 (en) * | 2017-12-28 | 2019-07-04 | 桂林市晶准测控技术有限公司 | Lever gauge |
| US11175121B2 (en) | 2017-12-28 | 2021-11-16 | GUILIN JINGZHUN Meas. and Control Tech. Co., Ltd. | Lever indicator |
| CN109506633A (en) * | 2018-11-29 | 2019-03-22 | 东华理工大学 | A kind of civil engineering range unit |
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Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |