CN206974410U - Station pointer worm gearing - Google Patents
Station pointer worm gearing Download PDFInfo
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- CN206974410U CN206974410U CN201621407129.5U CN201621407129U CN206974410U CN 206974410 U CN206974410 U CN 206974410U CN 201621407129 U CN201621407129 U CN 201621407129U CN 206974410 U CN206974410 U CN 206974410U
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- worm
- handwheel
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- worm shaft
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Abstract
It the utility model is related to station pointer worm gearing, including end cap, the sleeve-shaped scale handwheel that one end is connected with end cap, worm shaft, it is fixed on the support set of station pointer rotating bar, worm shaft one end fits are in handwheel, screw and the nut between screw and handwheel are coaxially provided with the end, ladder circular groove located at handwheel end face includes circular groove one, two, it is provided with circular groove two and is placed on worm shaft and end face is butted on the packing ring of the worm shaft stage casing shaft shoulder, worm shaft stage casing coordinates in support set, packing ring has the anti-attrition packing ring for being placed on worm shaft stage casing and being butted on the bottom land of circular groove one with support inner room, spacing is provided between the index on handwheel and support set surface, anti-attrition gasket thickness and support set length and less than segment length in worm shaft.The utility model part is few, and assembly period is short, and labor intensity is low, accuracy of reading, and cost is low；Anti-attrition packing ring is grouped, worm shaft end play is ensured using group selective assembly, the adjustable zero of handwheel, handwheel driving worm shaft will not loosen during work.
Description
Technical field
Station pointer worm gearing is the utility model is related to, belongs to optical-mechanical product scope.
Background technology
After station pointer is for three known targets of measurement two-by-two angle, directly corresponding two are adjusted to the bar of instrument three
Individual angle, so as to determine a kind of measuring instrument at accommodation rapidly on plain chart.Station pointer worm gearing passes through
Handwheel can be rotated with rotary worm axle, and the worm screw of worm shaft and the worm gear of protractor relatively rotate, and because worm gear is motionless, and then be driven
The left bar or right bar of dynamic protractor turn to respective angles.In order to ensure that handwheel is reliably connected with worm shaft, handwheel rotating is not
It can produce relative rotation, release between centers, traditional station pointer worm gearing is using handwheel square hole and worm shaft side's body
Structure connects, and manufacture difficulty is big, and cost is high.In order to ensure transmission accuracy, station pointer worm gearing must assure that it
Axially there is certain interval distance.Traditional station pointer worm gearing uses Repairation, i.e., stays repair amount at support set end,
Worm shaft respective shaft segment length is first measured, support set is assembled into measurement support set after worm shaft corresponds to shaft part needs to repair the length cut
Degree, then repair and cut to the processing of machining scene, repair and cut away support set end face surplus, then assembling is cleaned, to ensure assembly precision, labor
Fatigue resistance is high, requires high to worker's technical merit, assembly period, length, was not easy to tissue continuous productive process.In order to ensure transmission accuracy,
Need to ensure certain interval distance between graduated ring end face and index, traditional station pointer worm gearing uses fixed adjustment
Method, advance four kinds of length adjustment packing rings of pre-made are needed to be used for temporarily with changing, part is wide in variety, equipment adjustment time length.
The content of the invention
To solve the above problems, the utility model provides station pointer worm gearing, simple in construction, number of parts
It is few, the processing and manufacturing difficulty of part is reduced, installation time is short, reduces labor intensity, and index accuracy of reading is convenient, ensures scale hand
Wheel adjusts rapidly when needing with support set relative position and adjust zero, scale handwheel rotating driving worm shaft after adjustment, also not
It can produce relative rotation, release between centers, process costs reduce.
To achieve the above object, the technical scheme that the utility model is taken is：
Station pointer worm gearing, including end cap, sleeve-shaped scale handwheel, worm shaft, be fixed on three bars indexing
Support set in instrument rotating bar, one end of scale handwheel are connected with end cap, and circumferentially surface is provided with quarter to the other end of scale handwheel
Line is spent, worm shaft is multi-diameter shaft, and worm shaft increases successively including the diameter of axle and the first coaxial shaft part, the second shaft part, the 3rd shaft part,
It is provided with worm screw in one end of the 3rd shaft part, the first shaft part coaxial cooperation of worm shaft is in scale handwheel inner ring, in the first shaft part
End coaxial threaded be connected with lock-screw, be connected with fastening screw nut in the external peripheral threads of the first shaft part, fastening screw nut
One end is butted on the head end of lock-screw, and the other end of fastening screw nut is butted on scale handwheel end face, is provided with and carves in scale handwheel
The end face for spending one end of line is coaxially provided with ladder circular groove, and ladder circular groove includes circular groove one, the circular groove that groove footpath is sequentially reduced vertically
Two, the adjusting washer for being placed on the shaft part of worm shaft first is combined with circular groove two, the end face of adjusting washer is butted on worm shaft
The shaft shoulder of two shaft parts, the second shaft part coaxial cooperation of worm shaft are provided with set in support set between adjusting washer and support set
In the anti-attrition packing ring of the second shaft part, one end external peripheral surface of support set is provided with the index for being butted on anti-attrition packing ring end face, anti-attrition
The other end of packing ring is butted on the bottom land of circular groove one, and spacing is provided between scale handwheel and index,For positive rational number, anti-attrition
The thickness of packing ring and the length sum of support set are less than the length of the second shaft part of worm shaft.
Scale handwheel includes the dial of ring-type, is provided with graduation mark along the peripheral surface of dial, ladder circular groove is arranged at
The end face of dial, spacingFor the distance between dial and index, scale hand is extended axially by the outer shroud of dial
Outer sleeve is taken turns, scale handwheel inner sleeve is extended with along the same axial direction with scale handwheel outer sleeve in the inner ring of dial,
The end of scale handwheel outer sleeve is connected with end cap, and cavity is formed between scale handwheel and end cap, and the first shaft part of worm shaft is same
Axle is matched with scale handwheel inner sleeve, and the end of the first shaft part is located in cavity, and the other end of fastening screw nut is butted on scale hand
Take turns the end face of inner sleeve.
The length of second shaft part of worm shaft is with the difference of the thickness of anti-attrition packing ring and the length sum of support set for axially
Gap, axial gapIn the range of 0.01~0.15mm,For positive rational number.
Spacing between dial and indexIn the range of 0.1~0.3mm.
Anti-attrition packing ring uses fluoroplastics packing ring.
The thickness of adjusting washer is less than or equal to the depth of the circular groove two of scale handwheel ladder circular groove.
The assembly method of station pointer worm gearing, the assembly method comprise the following steps：
A. first according to the thickness of the design of anti-attrition packing ring, the thickness tolerance of the design of anti-attrition packing ring is-, then measurement buying or processing anti-attrition packing ring actual (real) thickness, will purchase or processing anti-attrition packing ring thickness gauge
It is very little to be divided into three groups：、、, wherein,, in three groups of buyings or processing
Different colors is coated on anti-attrition packing ring respectively, wherein A is the thickness basic size of the design of anti-attrition packing ring, and A is positive rational number,、, X, Y be all rational, according to the length dimension of the design of the second shaft part of worm shaft, wherein B is worm shaft
The length basic size of the design of second shaft part,、It is all rational, the length ruler of the design of the second shaft part of worm shaft
It is very littleFormulated according to economic accuracy of manufacture IT9 class precisions, the length dimension of the design of the second shaft part of worm shaft, buying
Or the thickness of the anti-attrition packing ring of processing, the length dimension for the support set processed, axial gapDimension chain is formed, between axial direction
GapFor closed-loop, calculated using extremum method the support set length of the processing in dimension chain basic size and support set it is upper partially
Difference, lower deviation, obtain the length dimension of three groups of support sets, the fit on the support set of length dimension for meeting three groups of support sets
Index, the support set for the length dimension for meeting three groups of support sets is then respectively cooperating with corresponding the group buying of color or subtracting for processing
Mill packing ring is assemblied on the second shaft part of worm shaft；
B. the worm shaft assembled by a steps is assembled into adjusting washer in the first shaft part, by the first axle of worm shaft
Duan Peihe is installed in scale handwheel inner sleeve, adjusting washer is matched with the circular groove two of scale handwheel ladder circular groove；
C. fastening screw nut is connected in the external peripheral threads of the first shaft part, in the end coaxial threaded connection locking of the first shaft part
Screw, adjustment lock-screw, fastening screw nut cause the end face of adjusting washer to be butted on the shaft shoulder of the shaft part of worm shaft second；
D. the end of scale handwheel outer sleeve and end cap are connected.
The length dimension of three groups of support sets is respectively、、, wherein C is the basic size of support set length,、、、、、It is all rational, the basic size C of support set length passes through formulaMeter
Draw, wherein 0 is axial gapBasic size,Pass through formulaIt is calculated,It is logical
Cross formulaIt is calculated,Pass through formulaIt is calculated,Pass through
FormulaIt is calculated,Pass through formulaIt is calculated,Pass through
FormulaIt is calculated.
In order to ensure that transmission accuracy and worm shaft being capable of the smooth rotation in support set, support set length and anti-attrition packing ring thickness
Spend and should be less than worm shaft and correspond to shaft part（That is the second shaft part）Length, axial gapShould be in 0.01~0.15mm（Tolerance
0.14）Between, axial gapCrossing conference causes worm shaft to be released axially, for the angle of station pointer rotating bar
Adjustment precision reduces, axial gapToo small to cause to rotate tension when scale handwheel adjusts worm shaft, adjustment is inconvenient.Due to
Worm shaft corresponds to segment length, support set length tolerance also will be in 0.05mm or so by the manufacture of IT9 levels, the fluorine that is manufactured by national standard
Plastic wear packing ring tolerance can be more than 0.04, three's tolerance and beyond 0.14mm, and interchange mathod, which assembles, can not ensure to assemble
Precision.Method is group selective assembly used by the utility model, it is ensured that it is public that worm shaft corresponds to segment length, support set length
Difference manufactures still according to economic accuracy of manufacture IT9 levels, can also use interchange mathod to assemble, and ensures assembly precision, assembly work is simple,
Economy, productivity ratio are high, and specific implementation method is：First according to the thickness of the design of anti-attrition packing ring,For the upper of A
Deviation,For A lower deviation, the thickness tolerance of the design of anti-attrition packing ring is-, then measure what is purchased or process
The actual (real) thickness of anti-attrition packing ring, will be purchased or the thickness of the anti-attrition packing ring of processing is divided into three groups：、、, wherein,, it is respectively placed in the working position apparatus of three kinds of dimensionings, or in three groups of buyings
Or different colors is coated on the anti-attrition packing ring of processing respectively, wherein A is the thickness basic size of the design of anti-attrition packing ring, and A is
Positive rational number,、, X, Y be all rational, according to the length dimension of the design of the second shaft part of worm shaft, wherein B
For the length basic size of the design of the second shaft part of worm shaft,、It is all rational,For the B upper deviation,For
B lower deviation, the length dimension of the design of the second shaft part of worm shaftFormulated according to economic accuracy of manufacture IT9 class precisions,
The length dimension of the design of second shaft part of worm shaft, buying or processing anti-attrition packing ring thickness, processing branch
The length dimension of support set, axial gapForm dimension chain, axial gapFor closed-loop, calculated using extremum method in dimension chain
Processing the basic size of support set length and the upper deviation, the lower deviation of support set, obtain the length dimension of three groups of support sets,
The fit on index on the support set of length dimension for meeting three groups of support sets, it then will meet the length dimension of three groups of support sets
The anti-attrition packing ring of the support set buying or the processing that are respectively cooperating with corresponding group color be assemblied on the second shaft part of worm shaft, with regard to energy
Ensure the assembly precision of worm-drive part, and three groups of branch that support set may conform to be calculated according to the manufacture of IT9 class precisions
The length dimension of support set.
Scale handwheel of the present utility model is to be combined into one traditional handwheel with graduated ring, and the hole of scale handwheel is using circle
Hole, corresponding worm shaft end also use cylinder, and simply one section of screw thread of spreading coordinates fastening screw nut to be used to fasten quarter again outside cylindrical section
Handwheel is spent, worm shaft end endoporus increase internal thread hole, locks screw, the locking for fastening screw nut.So when unscrew lock
During tight screw, scale handwheel can be rotated mutually with worm shaft, when instrument needs zeroing, you can quickly adjust scale
Handwheel so that index nulling, then screw lock-screw so that scale handwheel is fixed together with worm shaft.Pass through rotation
Turn scale handwheel, drive worm shaft, worm shaft can relatively rotate with the worm gear on station pointer, due to worm gear
It is motionless, and then the accurate left bar adjusted on station pointer or right bar（That is rotating bar）With the angle between middle bar.Adjustment
As long as packing ring controls processing in the economic accuracy of manufacture, the depth dimensions of circular groove two of corresponding scale handwheel ladder circular groove is made as economical
Manufacturing accuracy control processing, the thickness of adjusting washer are less than or equal to the depth of the circular groove two of scale handwheel ladder circular groove, that is, ensured
The distance between scale handwheel end face and index are in 0.1~0.3mm so that index accuracy of reading is convenient.Obvious this method
Not only part is easily manufactured, reduces cost, also more convenient during mounting and adjusting, and can reach requirement.
The utility model has following good effect：Anti-attrition packing ring is grouped, worm screw is ensured using group selective assembly
For transmission device axial gap between 0.01~0.15mm, labor intensity is low, and assembly period is short；New design structure by graduated ring with
Handwheel is combined into one as scale handwheel, as long as an adjusting washer ensures that gap is little between graduated ring end face and index
In 0.3mm；Using screw, nut locking structure, handwheel is reliably connected with worm shaft, and square hole, side are substituted with circular hole and axis connection
Body connects, and can ensure to adjust rapidly when scale handwheel needs with support set relative position and adjusts zero, scale handwheel after adjustment
Rotating drives worm shaft, will not also produce relative rotation, release between centers, and number of parts is few, and installation time is short, and outward appearance is beautiful
See；Process costs substantially reduce.
The utility model is simple in construction, and number of parts is few, reduces the processing and manufacturing difficulty of part, and installation time is short, reduces
Labor intensity, index accuracy of reading is convenient, ensures to adjust rapidly when scale handwheel needs with support set relative position and adjusts zero,
The rotating of scale handwheel drives worm shaft after adjustment, will not also produce relative rotation, release between centers, and process costs reduce.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of scale handwheel.
In figure：End cap 1, lock-screw 2, fastening screw nut 3, adjusting washer 4, scale handwheel 5, dial 5-1, graduation mark 5-
1-1, scale handwheel outer sleeve 5-2, scale handwheel inner sleeve 5-3, ladder circular groove 5-4, the 5-4-1 of circular groove one, the 5-4-2 of circular groove two,
Index 6, anti-attrition packing ring 7, support set 8, worm shaft 9, the first shaft part 9-1, the second shaft part 9-2, the 3rd shaft part 9-3, worm screw 9-4,
Cavity 10.
Embodiment
It is described in further detail below in conjunction with the most preferred embodiment shown in accompanying drawing：
Embodiment 1, referring to 1~accompanying drawing of accompanying drawing 2, station pointer worm gearing, including end cap 1, sleeve-shaped scale
Handwheel 5, worm shaft 9, the support set 8 being fixed in station pointer rotating bar.
Scale handwheel 5 includes the dial 5-1 of ring-type, is extended axially by dial 5-1 outer shroud outside scale handwheel
Sleeve 5-2, it is extended with dial 5-1 inner ring along the same axial direction with scale handwheel outer sleeve 5-2 in scale handwheel
Sleeve 5-3, scale handwheel outer sleeve 5-2 end are connected with end cap 1, and graduation mark 5- is provided with along dial 5-1 peripheral surface
1-1。
Worm shaft 9 is multi-diameter shaft, and worm shaft 9 increases successively including the diameter of axle and coaxial the first shaft part 9-1, the second shaft part 9-
2nd, the 3rd shaft part 9-3, worm screw 9-4 is provided with the 3rd shaft part 9-3 one end, the first shaft part 9-1 coaxial cooperations of worm shaft 9 are in quarter
Spend in handwheel inner sleeve 5-3.Cavity 10 is formed between scale handwheel 5 and end cap 1, the first shaft part 9-1 end is located at cavity 10
It is interior, lock-screw 2 is connected with the first shaft part 9-1 end coaxial threaded, is connected with the first shaft part 9-1 external peripheral threads
Fastening screw nut 3, one end of fastening screw nut 3 are butted on the head end of lock-screw 2, and the other end of fastening screw nut 3 is butted on scale hand
Take turns inner sleeve 5-3 end face.
In the end face of the one end of scale handwheel 5 provided with graduation mark 5-1-1（That is dial 5-1 end face）It is coaxially provided with ladder
Circular groove 5-4, ladder circular groove 5-4 include the 5-4-1 of circular groove one, the 5-4-2 of circular groove two that groove footpath is sequentially reduced vertically, in the 5- of circular groove two
The adjusting washer 4 for being placed on the shaft part 9-1 of worm shaft 9 first is combined with 4-2, the end face of adjusting washer 4 is butted on worm shaft 9 second
The shaft part 9-2 shaft shoulder, the second shaft part 9-2 coaxial cooperations of worm shaft 9 in support set 8, adjusting washer 4 and support set 8 it
Between be provided with and be placed on the second shaft part 9-2 anti-attrition packing ring 7, one end external peripheral surface of support set 8, which is provided with, is butted on the one end of anti-attrition packing ring 7
The index 6 in face, the other end of anti-attrition packing ring 7 is butted on the 5-4-1 of circular groove one bottom land, between being provided between dial 5-1 and index 6
Away from,For positive rational number, the thickness M of anti-attrition packing ring 7 and the length N sums of support set 8 are less than the second shaft part 9-2 of worm shaft 9
Length L.
The the second shaft part 9-2 length L and the thickness M of anti-attrition packing ring 7 of worm shaft 9 and the length N sums of support set 8 difference
It is worth for axial gap, i.e.,=L-（M+N）, axial gapIn the range of 0.01~0.15mm,For positive rational number.
Spacing between dial 5-1 and index 6In the range of 0.1~0.3mm.
The present embodiment anti-attrition packing ring 7 uses fluoroplastics packing ring.
The assembly method of station pointer worm gearing, the assembly method comprise the following steps：
A. the design thickness size of the anti-attrition packing ring 7 of the present embodiment fluoroplastics material isMm, i.e. A=0.3mm,,, the thickness tolerance of the design of anti-attrition packing ring 7 is 0.12mm, then measurement buying or processing
The actual (real) thickness of anti-attrition packing ring 7, will purchase or the thickness of anti-attrition packing ring 7 of processing is divided into three groupsmm、mm、Mm, i.e.,,, in the anti-attrition packing ring of three groups of buyings or processing
Red, yellow, blue three-color is coated on 7 respectively；
The length dimension that second shaft part 9-2 of worm shaft 9 designs according to economic accuracy of manufacture IT9 class precisions is
Mm, i.e. B=17.3mm,、, the length dimension of the second shaft part 9-2 of worm shaft 9 designmm、
The thickness of the anti-attrition packing ring 7 of buying or processing, the length dimension of the support set 8 of processing, axial gapForm dimension chain,
Axial gapFor closed-loop,Represented i.e. with toleranceMm, the support set 8 of the processing in dimension chain is calculated using extremum method
The basic size of length and the upper deviation, the lower deviation of support set 8, obtain the length dimension of three groups of support sets 8：mm、
mm、Mm, i.e.,, basic size C=17mm of the length of support set 8,,,,,,,,,,,,；
Support set 8 is processed according to IT9 class precisions, in the support set 8 for the length dimension for meeting the three groups of support sets 8 calculated
Upper fit on index 6, the support set 8 for the length dimension for meeting three groups of support sets 8 is then respectively cooperating with adopting for corresponding group color
The anti-attrition packing ring 7 of purchase or processing is assemblied on the second shaft part 9-2 of worm shaft 9, ensures the assembly precision of worm-drive part；
B. the worm shaft 9 assembled by a steps is assembled into adjusting washer 4 in the first shaft part 9-1, by worm shaft 9
First shaft part 9-1, which coordinates, to be installed in scale handwheel inner sleeve 5-3, and adjusting washer 4 is matched with into the ladder circular groove 5- of scale handwheel 5
In 4 5-4-2 of circular groove two；
C. fastening screw nut 3 is connected in the first shaft part 9-1 external peripheral threads, in the first shaft part 9-1 end coaxial threaded
Lock-screw 2 is connected, adjustment lock-screw 2, fastening screw nut 3 cause the end face of adjusting washer 4 to be butted on the shaft part 9- of worm shaft 9 second
2 shaft shoulder；
D. scale handwheel outer sleeve 5-2 end is connected with end cap 1.
Circular groove two 5-4-2 of the thickness of adjusting washer 4 less than or equal to the ladder circular groove 5-4 of scale handwheel 5 depth.
During work, when instrument needs zeroing, lock-screw 2 is unscrewed, scale handwheel 5 is mutually to turn with worm shaft 9
Dynamic, you can quickly adjustment scale handwheel 5 so that the nulling of index 6, then screw lock-screw 2 so that scale handwheel
5 are fixed together with worm shaft 9.By rotating scale handwheel 5, worm shaft 9 is driven to rotate, worm shaft 9 rotates can be with three bars
Worm gear on protractor relatively rotates, because worm gear is motionless, and then the accurate left bar adjusted on station pointer or right bar
With the angle between middle bar.As long as adjusting washer 4 controls processing, the ladder circle of corresponding scale handwheel 5 in the economic accuracy of manufacture
The groove 5-4 5-4-2 depth dimensionses of circular groove two are less than or equal to rank by the control processing of the economic accuracy of manufacture, the thickness of adjusting washer 4
The terraced circular groove 5-4 5-4-2 of circular groove two depth, that is, ensure the distance between the end face of scale handwheel 5 and index 6 in 0.1~0.3mm
Interior, then the readable of index 6 accurately facilitates.
Preferred embodiments of the present utility model are the foregoing is only, it is all new in this practicality not to limit the utility model
Within the spirit and principle of type, any modification, equivalent substitution and improvements made etc., protection of the present utility model should be included in
Within the scope of.
Claims (5)
1. station pointer worm gearing, it is characterised in that：Including end cap, sleeve-shaped scale handwheel, worm shaft, it is fixed on
Support set in station pointer rotating bar, one end of scale handwheel are connected with end cap, the other end of scale handwheel circumferentially table
Face is provided with graduation mark, and worm shaft is multi-diameter shaft, worm shaft include the diameter of axle increase successively and the first coaxial shaft part, the second shaft part,
3rd shaft part, is provided with worm screw in one end of the 3rd shaft part, the first shaft part coaxial cooperation of worm shaft in scale handwheel inner ring,
The end coaxial threaded of first shaft part is connected with lock-screw, and fastening screw nut is connected with the external peripheral threads of the first shaft part, and
One end of tight nut is butted on the head end of lock-screw, and the other end of fastening screw nut is butted on scale handwheel end face, in scale hand
The end face of the one end of wheel provided with graduation mark is coaxially provided with ladder circular groove, and ladder circular groove includes the circular groove that groove footpath is sequentially reduced vertically
First, circular groove two, are combined with the adjusting washer for being placed on the shaft part of worm shaft first in circular groove two, and the end face of adjusting washer is butted on snail
The shaft shoulder of the shaft part of bar axle second, the second shaft part coaxial cooperation of worm shaft is in support set, between adjusting washer and support set
Provided with the anti-attrition packing ring for being placed on the second shaft part, one end external peripheral surface of support set is provided with the finger for being butted on anti-attrition packing ring end face
Mark, the other end of anti-attrition packing ring is butted on the bottom land of circular groove one, spacing is provided between scale handwheel and index,To be just reasonable
Number, the thickness of anti-attrition packing ring and the length sum of support set are less than the length of the second shaft part of worm shaft, and scale handwheel includes ring
The dial of shape, graduation mark is provided with along the peripheral surface of dial, ladder circular groove is arranged at the end face of dial, spacingTo carve
The distance between scale and index, scale handwheel outer sleeve is extended axially by the outer shroud of dial, in the inner ring of dial
Scale handwheel inner sleeve, the end and end of scale handwheel outer sleeve are extended with along the same axial direction with scale handwheel outer sleeve
Lid connection, forms cavity between scale handwheel and end cap, the first shaft part coaxial cooperation of worm shaft in scale handwheel inner sleeve,
The end of first shaft part is located in cavity, and the other end of fastening screw nut is butted on the end face of scale handwheel inner sleeve.
2. station pointer worm gearing according to claim 1, it is characterised in that：Second shaft part of worm shaft
The difference of the length sum of the thickness and support set of length and anti-attrition packing ring is axial gap, axial gap0.01~
In the range of 0.15mm,For positive rational number.
3. station pointer worm gearing according to claim 2, it is characterised in that：Between dial and index
SpacingIn the range of 0.1~0.3mm.
4. station pointer worm gearing according to claim 3, it is characterised in that：Anti-attrition packing ring uses fluoroplastics
Packing ring.
5. station pointer worm gearing according to claim 4, it is characterised in that：The thickness of adjusting washer is less than
Or the depth of the circular groove two equal to scale handwheel ladder circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621407129.5U CN206974410U (en) | 2016-12-21 | 2016-12-21 | Station pointer worm gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621407129.5U CN206974410U (en) | 2016-12-21 | 2016-12-21 | Station pointer worm gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206974410U true CN206974410U (en) | 2018-02-06 |
Family
ID=61413598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621407129.5U Expired - Fee Related CN206974410U (en) | 2016-12-21 | 2016-12-21 | Station pointer worm gearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206974410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709657A (en) * | 2019-01-07 | 2019-05-03 | 大族激光科技产业集团股份有限公司 | A kind of rotation adjustment spectacle-frame device of unlubricated medium |
| CN110206852A (en) * | 2019-06-05 | 2019-09-06 | 武汉理工大学 | A kind of novel worm and wormwheel angular adjustment inching gear |
-
2016
- 2016-12-21 CN CN201621407129.5U patent/CN206974410U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709657A (en) * | 2019-01-07 | 2019-05-03 | 大族激光科技产业集团股份有限公司 | A kind of rotation adjustment spectacle-frame device of unlubricated medium |
| CN110206852A (en) * | 2019-06-05 | 2019-09-06 | 武汉理工大学 | A kind of novel worm and wormwheel angular adjustment inching gear |
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