CN1255198A - Geared measuring device especially for tachometer or revolution counter - Google Patents

Geared measuring device especially for tachometer or revolution counter Download PDF

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Publication number
CN1255198A
CN1255198A CN98804882A CN98804882A CN1255198A CN 1255198 A CN1255198 A CN 1255198A CN 98804882 A CN98804882 A CN 98804882A CN 98804882 A CN98804882 A CN 98804882A CN 1255198 A CN1255198 A CN 1255198A
Authority
CN
China
Prior art keywords
measuring instrument
gear
intermediate shaft
coupling apparatus
around
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN98804882A
Other languages
Chinese (zh)
Other versions
CN1119660C (en
Inventor
C·贝克豪斯
J·布鲁梅
M·哈贝曼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannesmann VDO AG
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Mannesmann VDO AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of CN1255198A publication Critical patent/CN1255198A/en
Application granted granted Critical
Publication of CN1119660C publication Critical patent/CN1119660C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
    • F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
    • F16H1/225—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes with two or more worm and worm-wheel gearings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/04—Special adaptations of driving means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/02—Bearings or suspensions for moving parts

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Gears, Cams (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention relates to a geared measuring device, wherein the rotation of the drive shaft (4) can be transmitted to an intermediate shaft (1) via a first pair of toothed gears and from the intermediate shaft to a measuring device drive mechanism (7a) via a second pair toothed gears. To this end, a first toothed gear is arranged on the drive shaft (4) and a second toothed gear is arranged on the measuring device (7a). The parts of the toothed gear pairs are configured on the intermediate shaft (1) as a cylindrical worm (6) and at least one toothed gear (2, 2a, 3) has a semi-globoidal shape gear (2, 3).

Description

Have gear mechanism and be used in particular for velocity gauge or revolution indicator in measuring instrument
The present invention relates to a kind of geared measuring device that has, be used in particular in velocity gauge or the revolution indicator, wherein the rotation of driving shaft can be sent to intermediate shaft via first pair of gear, and is sent to the measuring instrument drive unit from intermediate shaft via second pair of gear.As a result, can realize the driving shaft installed obliquely with respect to this needle pivot.If as the flexible velocity gauge of the operation that is used for velocity gauge is the reason of space or laying, in velocity gauge, measuring instrument uses the driving shaft that has with respect to needle pivot to be obliquely installed, and such setting is essential.Applicant's application formerly (DE 196 33 598) public use driving shaft is via the driving of the intermediate shaft of first pair of gear and use the driving of this intermediate shaft via the driving shaft of second pair of gear, and this driving shaft is connected on the measuring instrument drive unit.In this case, this is configured to the worm screw rotating mechanism to gear mechanism.A kind of worm screw rotating mechanism comprises a worm screw and a gear, wherein at least one of this two assembly have a sphere tectonic type (Dubbel, Taschenbuch f ü r denMaschinenbau, the 17th version, the G136 page or leaf, Figure 29).
Shortcoming in this situation is that spherical gear only can complicated mode be produced.In addition, the assembling of this worm mechanism is complicated and need meets tiny tolerance on fit in addition.Dubbel (part is in the detailed catalogue 8.7 of the G135 page or leaf of quoting as proof) also openly is used for the use at the crossed helical gears of the gear mechanism of velocity gauge.Yet these shortcomings that have are that they do not allow that the dentation on intermediate shaft is a flat angle of pitch γ m (＜38 °), and therefore need one to have relatively large diameter intermediate shaft, thereby need a relatively big overall space.In addition, be sent under the situation of a very fast velocity of rotation than the moving speed of slow-speed at one from the part of this gear mechanism, and these parts are to intermesh that this friction law is just relatively poor, so that the danger of interrupting and therefore damaging gear mechanism is arranged.
Therefore, the objective of the invention is to describe in detail a kind of specification with a geared measuring device, wherein the rotation of driving shaft can be sent to the driving of an intermediate shaft via first pair of gear, and be sent to the drive unit of measuring instrument via second pair of gear from this intermediate shaft, this running produces straight from the shoulder and assembles, and only needs a tiny overall space.
According to the present invention, its objective is by one of them design of gears of this two pairs of gears at least to have a cylindrical worn for half spherical gear and one and reach with the intermediate shaft of this semisphere gear operation.Advantage of the present invention is that it stipulates a kind of tiny and still noiseless geared measuring device that has, and has wherein eliminated the danger of blocking.In addition, greatly inequality with spherical gear, the semisphere gear also can be produced by the mold injection.
The design of the measuring instrument in this velocity gauge as the eddy current measuring instrument, causes the assembly bluntly laying and have the long life.
If columniform worm screw be arranged on intermediate shaft and all with in first gear on the driving shaft and second gearing mesh on the measuring instrument drive unit, realize the gear mechanism of a minimum number of spare parts of use.
By an additional gear on intermediate shaft, even when all right measuring instrument uses in velocity gauge, drive one thousand number of degrees meter axle.If this is to be designed to a conventional worm gear mechanism or design has half spherical gear to gear, they are just noiseless especially and have the long life.
If the 3rd design of gears that is located on the measuring instrument drive unit is half spherical gear, it just advantageously is attached to a coupling apparatus around the measuring instrument part with the measuring instrument drive unit.Therefore, the side flank of this semisphere gear is used as the device for carrying-bit of one or more parts of this measuring instrument simultaneously.
If this measuring instrument structure is become the eddy current measuring instrument, this magnet or eddy current element can advantageously be attached on this coupling apparatus, and it restores path disk advantageous particularly to the magnetic that is added in each situation.Generally speaking, the very compact design of this measuring instrument can this mode realize.At production period, the part of the correspondence of measuring instrument can be packaged by intermediate holder.During magnet being inserted in this intermediate holder, have a temperature compensating element in addition in this coupling apparatus there, therefore the temperature dependency of this measuring instrument is reduced or even the person remove.
Assembly by the part of this coupling apparatus and measuring instrument constitutes can be installed on the intermediate shaft from above simply.Use preferred exemplary examples of implementation especially, the present invention is in more detail in following explanation.In this situation, identical assembly is denoted as identical drawing reference numeral.In the accompanying drawings:
Fig. 1 is the schematic perspective view of the gear mechanism of a measuring instrument of the present invention, wherein has two semisphere gears.
Fig. 2 is the synoptic diagram of the gear mechanism of a measuring instrument of the present invention, wherein has a semisphere gear.
Fig. 3 is the view of a preferred intermediate shaft.
Fig. 4 is the view that cuts by the preferred especially measuring instrument of a velocity gauge or revolution indicator.
In Fig. 1, one with first gear 2 of hemispherical shape with similarly all be engaged on this intermediate shaft 1 with second gear 3 of hemispherical shape.This first gear 2 is one with this driving shaft 4 with this mode mold injection, and promptly it is around an end of this velocity gauge axle 5.In the zone of this gear 2,3, with this intermediate shaft be configured to a cylindrical worn 6 and advantageously the mold injection be one.This second gear 3 is around this measuring instrument drive unit and be attached to this coupling apparatus 7, and this coupling apparatus 7 is partially around magnet 8 and recovery path disk 9.
At the gear mechanism shown in Fig. 2 because the first gear 2a is configured to helical tooth with different at gear mechanism shown in Figure 1.Other assemblies are with identical at assembly shown in Figure 1.
Intermediate shaft 1 in Fig. 3, except having and this first and second gear 2,2a outside the cylindrical worn 6 (as shown in above accompanying drawing) of 3 engagements, also has one second cylindrical worn 10, and it can drive the intermediate shaft (not) of one thousand number of degrees meter.Also this cylindrical worn 6 can be further divided into two halves, in each situation, half and this first or second gear 2,2a, 3 engagements.Continuation shape shown in being somebody's turn to do has proved more favourable on the whole.
Show this intermediate shaft 1 by the view that not exclusively cuts according to measuring instrument of the present invention in Fig. 4, it drives second gear of getting with hemispherical shape 3 via cylindrical worn 6.Can know and see that this second gear 3 and measuring instrument drive unit 7a are attached on this intermediate holder 7.This intermediate holder 7 is partly around this magnet 8, recovery path disk 9 and temperature compensating element 11.These three assemblies of mentioning at last, 8,9,11 production periods in this intermediate holder 7 can be packaged by ground, the material position of this intermediate holder 7, and thereby be connected to the latter.Then, this assembly that so far obtains can be between the velocity gauge installation period, states from above to be installed in simply on the intermediate shaft 1.
An eddy current element 12 and a recovery path disk 13 are connected on the pointer 16 via anchor clamps 14 and a needle pivot 15.If this magnet 8 rotates, in this eddy current element 12, produce a kind of power, the power of this power and a spiral catapult 17 is opposite and cause that this pointer 16 turns round.For reason clearly, the essential fixture of this assembly is diagram not.
In running counter-rotating, eddy current element 12 can also be combined in the coupling apparatus 7 and magnet 8 is combined in these anchor clamps 14.This eddy current element 12 can also be configured to bell shape and suitably revise this recovery path disk 13.

Claims (11)

1. has geared measuring device, wherein the rotation of driving shaft can be sent to an intermediate shaft via first pair of gear, and be sent to the measuring instrument drive unit via second pair of gear from this intermediate shaft, first gear is arranged on this driving shaft and second gear is arranged on this measuring instrument drive unit, it is characterized in that this component design to gear on this intermediate shaft (1) becomes a cylindrical worn (6), and at least one gear (2,2a, 3) be designed to half spherical gear (2,3).
2. according to the measuring instrument of claim 1, it is characterized in that measuring instrument is designed to a kind of eddy current measuring instrument.
3. according to the measuring instrument of claim 1 or 2, it is characterized in that, another gear (10) has been set on this intermediate shaft (1), the gearing mesh of described gear (10) and 1,000 number of degrees meter axles.
4. according to the measuring instrument of claim 3, it is characterized in that this between this intermediate shaft (1) and this thousand number of degrees meter axle becomes a worm drive mechanism to design of gears.
5. according to the measuring instrument of above any one claim, it is characterized in that the 3rd gear (3) is designed to half spherical gear, described gear is attached to this coupling apparatus (7), and described device partly centers on the one or more parts of this measuring instrument.
6. according to the measuring instrument of claim 5, it is characterized in that this coupling apparatus (7) partly centers on the magnet (8) of this eddy current measuring instrument.
7. according to the measuring instrument of claim 6, it is characterized in that this coupling apparatus (7) also restores path disk (9) around one.
8. according to the measuring instrument of claim 6 or 7, it is characterized in that this coupling apparatus (7) is also around temperature compensating element (11).
9. according to the measuring instrument of claim 5, it is characterized in that this coupling apparatus (7) is partly around this eddy current element (12).
10. according to the measuring instrument of claim 9, it is characterized in that this coupling apparatus (7) also restores path disk (13) around one.
11. the measuring instrument according to above any one claim is characterized in that, it is installed in a velocity gauge or the revolution indicator.
CN98804882A 1997-05-09 1998-05-02 Geared measuring device especially for tachometer or revolution counter Expired - Fee Related CN1119660C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19719194.0 1997-05-09
DE19719194A DE19719194A1 (en) 1997-05-09 1997-05-09 Measuring mechanism with gear, especially for a speedometer or tachometer

Publications (2)

Publication Number Publication Date
CN1255198A true CN1255198A (en) 2000-05-31
CN1119660C CN1119660C (en) 2003-08-27

Family

ID=7828823

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98804882A Expired - Fee Related CN1119660C (en) 1997-05-09 1998-05-02 Geared measuring device especially for tachometer or revolution counter

Country Status (6)

Country Link
KR (1) KR100371998B1 (en)
CN (1) CN1119660C (en)
BR (1) BR9809277A (en)
DE (1) DE19719194A1 (en)
MY (1) MY125878A (en)
WO (1) WO1998052048A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2346813A1 (en) * 1973-09-18 1975-04-03 Moto Meter Gmbh PROCEDURE FOR ADJUSTING THE TEMPERATURE COMPENSATION IN THE EDGE CURRENT MEASURING SYSTEM
IT1107302B (en) * 1978-04-21 1985-11-25 Borletti Spa SPEEDOMETER DEVICE DRIVEN BY AN ELECTRIC MOTOR
DE19518194C2 (en) * 1995-05-22 2000-09-21 Ims Morat & Soehne Gmbh Worm gear

Also Published As

Publication number Publication date
KR100371998B1 (en) 2003-02-11
BR9809277A (en) 2000-06-27
MY125878A (en) 2006-08-30
DE19719194A1 (en) 1998-11-12
WO1998052048A1 (en) 1998-11-19
CN1119660C (en) 2003-08-27
KR20010012263A (en) 2001-02-15

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Granted publication date: 20030827

Termination date: 20100502