CN204716774U - A kind of vertical pivot bearing structure for theodolite or electronic tachometer - Google Patents
A kind of vertical pivot bearing structure for theodolite or electronic tachometer Download PDFInfo
- Publication number
- CN204716774U CN204716774U CN201520364286.1U CN201520364286U CN204716774U CN 204716774 U CN204716774 U CN 204716774U CN 201520364286 U CN201520364286 U CN 201520364286U CN 204716774 U CN204716774 U CN 204716774U
- Authority
- CN
- China
- Prior art keywords
- vertical pivot
- trim ring
- bearing
- axle sleeve
- ring
- 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.)
- Active
Links
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a kind of vertical pivot bearing structure for theodolite or electronic tachometer, comprise vertical pivot and axle sleeve, clutch shaft bearing, the second bearing and trim ring is disposed with from top to bottom between described vertical pivot and axle sleeve, described clutch shaft bearing upper end is by being positioned at the vertical pivot shaft shoulder and the axle sleeve inner ring boss location of same level, and described second bearing lower end is located by trim ring; Described trim ring comprises the first trim ring and the second trim ring, and described first trim ring is closely arranged at below the second outer race, and described second trim ring is closely arranged at below the second bearing inner ring; Spacer ring is provided with between described clutch shaft bearing outer shroud and the second outer race; This structural member adopts finish turning to substitute fine grinding, and counterpart adopts the bearing that precision is higher, and stable accuracy, cost can reduce by 50%; And difficulty of processing reduces, easy mass production; The easy axis of in the past half campaign-styled columnar shaft, but vertical pivot of the present utility model changes the overall structure of vertical pivot in the past, there is not axis phenomenon.
Description
Technical field
The utility model belongs to surveying instrument technical field, especially relates to a kind of vertical pivot bearing structure for theodolite or electronic tachometer.
Background technique
At present, along with the development of science and technology, surveying instrument is constantly weeded out the old and bring forth the new, new instrument brings a lot of facilities to all trades and professions, also save a large amount of measurement time simultaneously, improve the precision of measurement, wherein just have theodolite and these two kinds of surveying instruments of electronic tachometer, described theodolite is a kind of instrument measuring horizontal angle and vertical angle, has very high measuring accuracy and easy to use and feature that is that carry; Described electronic tachometer a kind ofly integrates light, mechanical, electrical high technology surveying instrument, is to catchment the straight angle, vertical angle, distance (oblique distance, flat distance), vertical survey function in the instrument of surveying and mapping system of one.A critical piece above above-mentioned instrument is exactly vertical pivot structure, existing vertical pivot is all use " half campaign-styled columnar shaft " structure, as shown in Figure 1, vertical pivot a is outside equipped with axle sleeve b, be provided with ball c between axle sleeve b top and the vertical pivot a shaft shoulder, axle sleeve b bottom inside coordinates with vertical pivot a, forms precision-fit position e, trim ring d is arranged at axle sleeve b bottom, matches with vertical pivot a; This is a typical structure, the requirement of theodolite or electronic tachometer can be met, but, this structure is very high to material, heat treatment, requirement on machining accuracy, requires also very high, in addition for processing staff's operating technology, matching part hardness is HRC62 ~ 63, so high hardness wants fine finishing to only have with grinding machine mill, and be unfavorable for batch production, cost is also relatively high.
Summary of the invention
Problem to be solved in the utility model is to provide and a kind of reduces difficulty of processing and processing cost, realizes batch production, stops the vertical pivot bearing structure for theodolite or electronic tachometer of axis phenomenon.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of vertical pivot bearing structure for theodolite or electronic tachometer, comprise vertical pivot and axle sleeve, clutch shaft bearing, the second bearing and trim ring is disposed with from top to bottom between described vertical pivot and axle sleeve, described clutch shaft bearing upper end is by being positioned at the vertical pivot shaft shoulder and the axle sleeve inner ring boss location of same level, and described second bearing lower end is located by trim ring; Described trim ring comprises the first trim ring and the second trim ring, and described first trim ring is closely arranged at below the second outer race, and described second trim ring is closely arranged at below the second bearing inner ring; Space is left between described first trim ring and the second trim ring.
Spacer ring is provided with between described clutch shaft bearing outer shroud and the second outer race.
Be stepped outside described axle sleeve.
Owing to adopting technique scheme, this structural member adopts finish turning to substitute fine grinding, and counterpart adopts the bearing that precision is higher, the hardness of bearing own is very high, and other structural members ground with car generation, because Production of bearing batch is very large, homogeneity of product is very good, and stable accuracy, cost can reduce by 50%; And difficulty of processing reduces, easy mass production; The easy axis of in the past half campaign-styled columnar shaft, but vertical pivot of the present utility model changes the overall structure of vertical pivot in the past, adds bearing structure simultaneously, there is not axis phenomenon.
The beneficial effects of the utility model are: have and reduce difficulty of processing and processing cost, realize batch production, stop the advantage of axis phenomenon.
Accompanying drawing explanation
Below by with reference to accompanying drawing describe the utility model particularly in conjunction with example, advantage of the present utility model and implementation will be more obvious, wherein content shown in accompanying drawing is only for explanation explanation of the present utility model, and do not form restriction of going up in all senses of the present utility model, in the accompanying drawings:
The structural representation of vertical pivot in Fig. 1 prior art
Fig. 2 structural representation of the present utility model
In figure:
1, vertical pivot 2, axle sleeve 3, clutch shaft bearing
4, the second bearing 5, first trim ring 6, second trim ring
7, spacer ring 8, the vertical pivot shaft shoulder 9, axle sleeve inner ring boss
31, clutch shaft bearing outer shroud 41, second outer race 42, second bearing inner ring
Embodiment
As shown in Figure 2, a kind of vertical pivot bearing structure for theodolite or electronic tachometer of the utility model, comprise vertical pivot 1 and axle sleeve 2, clutch shaft bearing 3, second bearing 4 and trim ring is disposed with from top to bottom between described vertical pivot 1 and axle sleeve 2, described clutch shaft bearing 3 upper end is located by the vertical pivot shaft shoulder 8 and axle sleeve inner ring boss 9 being positioned at same level, and described second bearing 4 lower end is located by trim ring; Described trim ring comprises the first trim ring 5 and the second trim ring 6, and described first trim ring 5 is closely arranged at below the second outer race 41, and described second trim ring 6 is closely arranged at below the second bearing inner ring 42; Space is left between described first trim ring 5 and the second trim ring 6; Spacer ring 7 is provided with between described clutch shaft bearing outer shroud 31 and the second outer race 41; Be stepped outside described axle sleeve 2.
The working procedure of this example: this structural member adopts finish turning to substitute fine grinding, and counterpart adopts the bearing that precision is higher, because Production of bearing batch is very large, homogeneity of product is very good, and stable accuracy, cost can reduce by 50%; And difficulty of processing reduces, easy mass production; The easy axis of in the past half campaign-styled columnar shaft, but vertical pivot of the present utility model changes the overall structure of vertical pivot in the past, adds two bearing structures simultaneously, there is not axis phenomenon.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (3)
1. the vertical pivot bearing structure for theodolite or electronic tachometer, it is characterized in that: comprise vertical pivot and axle sleeve, clutch shaft bearing, the second bearing and trim ring is disposed with from top to bottom between described vertical pivot and axle sleeve, described clutch shaft bearing upper end is by being positioned at the vertical pivot shaft shoulder and the axle sleeve inner ring boss location of same level, and described second bearing lower end is located by trim ring; Described trim ring comprises the first trim ring and the second trim ring, and described first trim ring is closely arranged at below the second outer race, and described second trim ring is closely arranged at below the second bearing inner ring; Space is left between described first trim ring and the second trim ring.
2. the vertical pivot bearing structure for theodolite or electronic tachometer according to claim 1, is characterized in that: be provided with spacer ring between described clutch shaft bearing outer shroud and the second outer race.
3. the vertical pivot bearing structure for theodolite or electronic tachometer according to claim 1, is characterized in that: for stepped outside described axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364286.1U CN204716774U (en) | 2015-05-29 | 2015-05-29 | A kind of vertical pivot bearing structure for theodolite or electronic tachometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520364286.1U CN204716774U (en) | 2015-05-29 | 2015-05-29 | A kind of vertical pivot bearing structure for theodolite or electronic tachometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716774U true CN204716774U (en) | 2015-10-21 |
Family
ID=54315776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520364286.1U Active CN204716774U (en) | 2015-05-29 | 2015-05-29 | A kind of vertical pivot bearing structure for theodolite or electronic tachometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286614A (en) * | 2015-05-29 | 2017-01-04 | 天津徕众测量仪器有限公司 | A kind of vertical pivot bearing arrangement for theodolite or total powerstation |
| CN106523534A (en) * | 2016-12-29 | 2017-03-22 | 浙江舜宇光学有限公司 | Bearing group rotating device, bearing group rotating operation device and adjusting method of bearing group rotating operation device |
-
2015
- 2015-05-29 CN CN201520364286.1U patent/CN204716774U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286614A (en) * | 2015-05-29 | 2017-01-04 | 天津徕众测量仪器有限公司 | A kind of vertical pivot bearing arrangement for theodolite or total powerstation |
| CN106523534A (en) * | 2016-12-29 | 2017-03-22 | 浙江舜宇光学有限公司 | Bearing group rotating device, bearing group rotating operation device and adjusting method of bearing group rotating operation device |
| CN106523534B (en) * | 2016-12-29 | 2019-08-09 | 浙江舜宇光学有限公司 | Bearing group rotating device, operation equipment and its adjusting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104723313B (en) | The line measuring method of a kind of large scale special-shaped workpiece and device | |
| CN104070513B (en) | The accurate scribble method of thin-wall special-shaped casting cabin body | |
| CN204716774U (en) | A kind of vertical pivot bearing structure for theodolite or electronic tachometer | |
| CN103831665A (en) | Detection and correction method of locating accuracy of rotating shaft of five-axis machine tool | |
| CN204346338U (en) | A kind of measurement mechanism of double-row bearing ditch spacing | |
| CN106286614A (en) | A kind of vertical pivot bearing arrangement for theodolite or total powerstation | |
| CN204924107U (en) | Tailor uses dipperstick | |
| CN202048919U (en) | Multifunctional elevation benchmark device | |
| CN205843543U (en) | A kind of bearing detecting device | |
| CN203100634U (en) | Slewing bearing rolling path contact angle and ball center height detection device | |
| CN106767627A (en) | A kind of micro-displacement touch sensor device | |
| CN203940801U (en) | A kind of plain type car body measurement mechanism | |
| CN205009843U (en) | Machine design instrument chi | |
| CN104111013A (en) | Simple car body measuring equipment | |
| CN207841293U (en) | A kind of amount divider calipers | |
| CN205332940U (en) | Raceway measuring apparatu is synthesized to bearing | |
| CN204327745U (en) | The spherical hinge of measurable space Three Degree Of Freedom angle of revolution and side-play amount | |
| CN208075871U (en) | A kind of multi-functional circumferentor of mineral equipment | |
| CN202452942U (en) | Simple checking device for concentricity of push rod | |
| CN202630851U (en) | Measuring tool for measuring spatial size of end tooth space of turbine rotor | |
| CN201077283Y (en) | Compasses with staff gauge | |
| CN206310993U (en) | Firearm all-purpose digital display rectifier | |
| CN206146337U (en) | Hub unit ditch position detection amount rule | |
| CN104567626A (en) | Quick angle measurer | |
| CN202826859U (en) | Novel ruler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |