CN2371389Y - Coupling mechanism for transmission between instrument main machine and outer rotary table - Google Patents
Coupling mechanism for transmission between instrument main machine and outer rotary table Download PDFInfo
- Publication number
- CN2371389Y CN2371389Y CN 98229567 CN98229567U CN2371389Y CN 2371389 Y CN2371389 Y CN 2371389Y CN 98229567 CN98229567 CN 98229567 CN 98229567 U CN98229567 U CN 98229567U CN 2371389 Y CN2371389 Y CN 2371389Y
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- CN
- China
- Prior art keywords
- outer turret
- transmission
- main frame
- main machine
- supported
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- 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.)
- Expired - Fee Related
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- 230000008878 coupling Effects 0.000 title claims abstract description 11
- 238000010168 coupling process Methods 0.000 title claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 title claims abstract description 10
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
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Abstract
A coupling mechanism for transmission between an instrument host and an outer turntable relates to the technical field of manufacturing of photoelectric precision instruments. The shafting-supported rotating shaft is characterized in that three shifting pins (4) are uniformly distributed on the edge of a main machine (2) supported by an integral shafting, the shifting pins (4) are inserted into rectangular holes (5) on an outer turntable (3) supported by the incomplete shafting and are kept in close contact in the circumferential direction. The mechanism has the advantages of simple structure, easy processing, convenient use, stable movement and the like. The main machine shaft system can be coaxially rotated by the outer turntable, and the interference of the outer turntable on the main machine shaft system can be effectively prevented, so that the overall precision of a precision instrument is ensured.
Description
The utility model is the coupling body of transmission between a kind of instrument host and outer turret, belongs to the further improvement to the coupling body of transmission between photoelectricity precision type instrument main frame and outer turret.
In the large photoelectric precision type instrument, the main frame precision height of instrument reaches a second level, and the precision manned and outer turret that the installation case is used is not then required.The outer turret of instrument and main frame must be around same axis rotations, and the deviation of still low precision outer turret can not have influence on the precision of main frame again.This has just proposed requirement to the connecting mode of instrument host and outer turret.Existing instrument has three kinds of connecting modes.First kind is the soft connection of instrument host and outer turret, and respectively around independently axle system rotation, this needs two cover servo-control systems, turntable in being followed the tracks of by outer turret.Second kind is to connect firmly with shaft coupling between instrument host and outer turret, and respectively around the axis rotation of oneself, shortcoming is that the shaft coupling size is big to inside and outside turntable, and machining accuracy and structural rigidity all are difficult for guaranteeing.The third is that outer turret is directly received on the instrument host, forms an axle, and the load meeting of outer turret influences the precision of main frame.
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art and coupling body that transmission between a kind of instrument host and outer turret is provided, can prevent the interference problem of outer turret and main frame effectively, can make simultaneously the coaxial rotation of outer turret and main frame again, guarantee accuracy of instrument.
The purpose of this utility model can reach by following measure: the cylindrical that complete axle is the main frame of support is evenly equipped with three fingers, and finger inserts by in the rectangular hole on the outer turret of imperfect system's support, and closely contacts in the circumferencial direction maintenance.
The purpose of this utility model can also reach by following measure: main frame is supported by radial bearing and thrust bearing, outer turret supports the width of the rectangular hole on the outer turret and the equal diameters of finger by thrust bearing, its length is 2 times of finger diameter, and finger and rectangular hole leave the gap between radial direction.
Fig. 1 is the utility model structural drawing
Fig. 2 is the utility model A-A sectional drawing
The utility model will be described further in conjunction with the accompanying drawings:
As depicted in figs. 1 and 2: main frame (2) is supported by radial bearing (8) and thrust bearing (9), the cylindrical of main frame (2) evenly is fixed with three cylinder type fingers (4), and finger (4) inserts by in the rectangular hole (5) on the outer turret (3) of thrust bearing (6) support.And in closely contact of circumferencial direction maintenance.The equal diameters of the width of rectangular hole (5) and finger (4), the length of rectangular hole (5) are 2 times of finger (4) diameter, leave gap (10) between finger (4) and the rectangular hole (5) and are 2mm.
During use, under the driving of torque motor, main frame (2) rotatablely moves around main shaft (1), drives outer turret (3) by finger (4) and rotatablely moves with main frame (2).
The utility model is compared prior art and is had following advantage:
1, main frame (2) is supported by journal bearing (8) and thrust bearing (9), and is non-when main shaft (1) rotates Chang Pingwen, and pass through finger (4) drive outer turret (3) with main frame (2) motion, because outside Turntable (3) has the support of thrust bearing (6), and its motion is also very steady.
2, be close contact at circumferencial direction between the finger (4) on the main frame (2) and the outer turret (3), so All can drive outer turret (3) during main frame (2) forward and backward and rotatablely move, guarantee outer turret (3) and main frame (2) concentric, and transmission stiffness is big.
3, when outer turret (3) has deviation (7), in rotation because the effect of rectangular hole (5) and gap (10), can the deviation of outer turret (3) not passed to main frame (2) by finger (4), can realize main frame (2) and the coaxial rotation of outer turret (3), realization main frame (2) is felt relieved to outer turret (3) carry-over moment with outer turret (3), effectively prevent the axle system interference of outer turret (3), guarantee the precision of instrument main frame (2).
4, the utility model structure is simple especially, and it is to not having any specific (special) requirements on the motion of main frame and the mode of operation, and is easy to use, the host driven outer turret, but the internal turntable shafting precision of outer turret does not exert an influence.
Claims (3)
1, the coupling body of transmission between instrument host and outer turret, comprise by motor driving, instrument host and outer turret all move around main axis rotation, it is characterized in that being evenly equipped with three fingers (4) by the edge that complete axle is the main frame (2) of support, in the rectangular hole (5) on the outer turret (3) that it is support that finger (4) inserts by imperfect axle, and in closely contact of circumferencial direction maintenance.
2, the coupling body of transmission between instrument host as claimed in claim 1 and outer turret is characterized in that main frame (2) is supported by radial bearing (8) and thrust bearing (9), and outer turret (3) is supported by thrust bearing.
3, the coupling body of transmission between instrument host as claimed in claim 1 or 2 and outer turret, the length that it is characterized in that the rectangle hole (5) on the outer turret (3) are 2～3 times of diameter of round bar type finger (4).The equal diameters of its width and round bar type finger (4) leaves gap (10) 1～3mm between round bar type finger (4) and the rectangular hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229567 CN2371389Y (en) | 1998-09-24 | 1998-09-24 | Coupling mechanism for transmission between instrument main machine and outer rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98229567 CN2371389Y (en) | 1998-09-24 | 1998-09-24 | Coupling mechanism for transmission between instrument main machine and outer rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371389Y true CN2371389Y (en) | 2000-03-29 |
Family
ID=33979441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98229567 Expired - Fee Related CN2371389Y (en) | 1998-09-24 | 1998-09-24 | Coupling mechanism for transmission between instrument main machine and outer rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371389Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979870A (en) * | 2012-12-05 | 2013-03-20 | 中国科学院光电技术研究所 | Mechanism capable of transmitting rotating torque and axially reciprocating |
-
1998
- 1998-09-24 CN CN 98229567 patent/CN2371389Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979870A (en) * | 2012-12-05 | 2013-03-20 | 中国科学院光电技术研究所 | Mechanism capable of transmitting rotating torque and axially reciprocating |
| CN102979870B (en) * | 2012-12-05 | 2015-06-17 | 中国科学院光电技术研究所 | Mechanism capable of transmitting rotating torque and axially reciprocating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |