CN204007668U - Two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms - Google Patents
Two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms Download PDFInfo
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- CN204007668U CN204007668U CN201420296978.2U CN201420296978U CN204007668U CN 204007668 U CN204007668 U CN 204007668U CN 201420296978 U CN201420296978 U CN 201420296978U CN 204007668 U CN204007668 U CN 204007668U
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Abstract
The utility model belongs to field of optical measuring technologies, is specifically related to a kind of two-dimensional tracking turntable and surpasses 360 ° of rotary position-limit mechanisms.Thereby this mechanism comprises and be arranged on the spacing preiection on rotary body and be arranged on the limit assembly that stops rotary body to rotate for blocking spacing preiection on fixed pedestal, its improvements are: limit assembly comprise two be positioned on spacing preiection movement locus and with the rotary block of the hinged installation of fixed pedestal; Two rotary blocks respectively can only be contrary towards a direction rotation and sense of rotation, thus the rotation of restricting rotation body.The design of this mechanism has solved two-dimensional tracking turntable and has surpassed 360 ° of whens rotation, and the significantly increase of the complicacy of existing position-limit mechanism and volume brings the problem of very large difficulty to assembling and setting.
Description
Technical field
The utility model belongs to field of optical measuring technologies, is specifically related to a kind of two-dimensional tracking turntable and surpasses 360 ° of rotary position-limit mechanisms.
Background technology
At present, the rotation of two-dimensional tracking turntable mostly adopts mechanical position limitation, as shown in Figure 1, the spacing structure of existing machinery is substantially all by being arranged on the spacing preiection 2 (lance) and limit assembly 4 (impact damper) the collision realization being mutually arranged on fixed pedestal 3 on rotary body 1, after required rotating range surpasses 360 °, just need to coordinate two impact dampers just can complete rotary body is realized to rotary stopper on a large scale by length different two-level spacing preiection is set, while using two-stage spacing, two impact dampers carry out spacing to two different spacing preiections of length respectively, so just need the volume of fixed pedestal to become large, two impact damper dislocation are arranged, thereby the complicacy of whole position-limit mechanism structure and the significantly increase of volume have been caused, to assembling and setting, bring very large difficulty.
Utility model content
In order to solve the problem in background technology, the utility model proposes that a kind of volume is little, simple in structure, the two-dimensional tracking turntable of easy operating surpasses 360 ° of rotary position-limit mechanisms.
Concrete technical scheme of the present utility model is:
A kind of two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms, thereby comprise and be arranged on the spacing preiection on rotary body and be arranged on the limit assembly that stops rotary body to rotate for blocking spacing preiection on fixed pedestal, it is characterized in that: described limit assembly comprise two be positioned on spacing preiection movement locus and with the rotary block of the hinged installation of fixed pedestal, two rotary blocks respectively can only be contrary towards a direction rotation and sense of rotation, thus the rotation of restricting rotation body.
Above-mentioned rotary block is right angle block.
Maintenance shell fragment for providing right angle block to remain right angle attitude is also provided above-mentioned limit assembly; Described maintenance shell fragment is " Z " font, and one end of described maintenance shell fragment is fixedly mounted on fixed pedestal, and the other end contacts with the bottom surface of right-angle baffle.
Two Buffer Units that above-mentioned limit assembly also comprises movable base and is separately positioned on movable base two ends; Described movable base is arranged on fixed pedestal; Described right angle block is hingedly mounted on movable base; Described movable base can move along the direction of clashing into when spacing preiection clashes into right angle block; Described Buffer Unit comprises spring and baffle plate; Described baffle plate is fixedly mounted on fixed pedestal, and one end of described spring is arranged on the end face of movable base, and the other end is arranged on baffle plate.
Above-mentioned Buffer Unit also comprises the rubber blanket being arranged on baffle plate.
The utility model has the advantage of:
1, the utility model adopts two rotary blocks to coordinate with spacing preiection, realize the spacing of two-dimentional turntable, simple and reliable for structure, one-piece construction volume is little, process and assemble is convenient and swift, reliability is high, only limit in addition rotating range, to precise rotation axle system, do not have additional torque additional.
2, the utility model adopts two rotary blocks to coordinate with spacing preiection, has realized the rotary stopper that two-dimensional tracking turntable surpasses 360 °, and the potential problems such as wire harness winding of having avoided the excessive rotation of two-dimensional tracking turntable to bring.
3, the utility model arranges Buffer Unit, has realized bidirectional elastic buffering, prevents hard failure mechanisms or the damage bringing of impacting.
4, whole arrangement of mechanism of the present utility model is in device external, convenient for maintaining or part replacement.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing position-limit mechanism;
Fig. 2 is perspective view of the present utility model;
Fig. 3 is the plan cross-section sketch of limit assembly;
Fig. 4 is course of work schematic diagram of the present utility model;
1-rotary body, 2-spacing preiection, 3-fixed pedestal, 4-limit assembly, 5-rotary block, 6-keep shell fragment, 7-movable base, 8-Buffer Unit, 9-spring, 10-rubber blanket, 11-baffle plate.
Embodiment
Existing position-limit mechanism, when turntable rotation surpasses 360 °, needs two-stage position-limit mechanism to coordinate and could realize the spacing of two-dimensional tracking turntable, and such complicacy that has caused position limiting structure and the significantly increase of volume, bring very large difficulty to assembling and setting.
The problem that the utility model occurs in the course of the work for the position-limit mechanism of existing two-dimensional tracking turntable, has proposed that a kind of volume is little, simple in structure, the two-dimensional tracking turntable of easy operating surpasses 360 ° of rotary position-limit mechanisms.
Now in conjunction with Fig. 2 and Fig. 3, this structure is described in detail:
Thereby this position-limit mechanism comprises and be arranged on the spacing preiection 2 on two-dimensional tracking turntable rotary body 1 and be arranged on the limit assembly 4 that stops rotary bodies to rotate for blocking spacing preiection 2 on fixed pedestal 3, its improvements are:
This limit assembly 4 comprise be positioned on spacing preiection 2 movement locus and with 5, two rotary blocks of rotary block 5 of fixed pedestal 3 hinged installations respectively can only be contrary towards a direction rotation and sense of rotation, thereby the rotation of restricting rotation body 1.
In actual design process, rotary block 5 is designed to right angle block.
In addition, the part bringing in order to prevent the unordered rotation of right angle block in transportation or other processes damages to change and causes spacing inefficacy, and the maintenance shell fragment 6 for providing right angle block to remain right angle attitude is also provided on this position-limit mechanism;
The structure of concrete this maintenance shell fragment 6 is: this maintenance shell fragment is " Z " font, keeps one end of shell fragment to be fixedly mounted on movable base 7, and the other end contacts with the bottom surface of right-angle baffle, by keeping shell fragment 6 to provide all the time right angle block to keep right angle attitude.
Due in realizing the spacing process of two-dimensional tracking turntable, spacing preiection 2 clashes into right angle block and belongs to hard impact, for fear of hard impact, cause the damage of part, therefore two Buffer Units 8 that, the utility model has also increased movable base 7 and has been separately positioned on movable base 7 two ends on this position-limit mechanism;
Movable base 7 is arranged on fixed pedestal 3; Two right angle blocks are hingedly mounted on movable base 7; Movable base 7 can move along the direction of clashing into when spacing preiection 2 clashes into right angle block;
Buffer Unit 8 comprises spring 9 and baffle plate 11; Baffle plate 11 is fixedly mounted on fixed pedestal 3, and one end of spring 9 is arranged on the end face of movable base 7, and the other end is arranged on baffle plate 11;
When the spacing preiection on two-dimensional tracking turntable strikes on right angle block, movable base 7 can move along crash direction, and plays certain buffer action under the acting force of spring 9.
Special feature also has: in order further to promote the buffering effect of movable component, rubber blanket 10 has also been installed on baffle plate 11 on this Buffer Unit 8.
Below, in conjunction with Fig. 4, the course of work of this position-limit mechanism is described:
As shown in Figure 4: when two-dimensional tracking turntable in motion process when spacing preiection is during by first 90 ° of right angle blocks, block is struck 90 °, spacing preiection passes through smoothly, but because its direction is different, is blocked while arriving second block, realizes spacing; When the spacing preiection on rotary body rotates backward, first block is restored, and still passes through smoothly, and state is same as above afterwards to rotate one week.
Attention: should keep the opening of two right angle blocks contrary under installation original state, spacing preiection guarantees in the slewing area of needs, air line distance between concrete two right angle blocks is determined by required slewing area, can realize in principle the rotary stopper of 360 °～720 °.
Claims (5)
1. a two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms, thereby comprise and be arranged on the spacing preiection on rotary body and be arranged on the limit assembly that stops rotary body to rotate for blocking spacing preiection on fixed pedestal, it is characterized in that: described limit assembly comprise two be positioned on spacing preiection movement locus and with the rotary block of the hinged installation of fixed pedestal; Two rotary blocks respectively can only be contrary towards a direction rotation and sense of rotation, thus the rotation of restricting rotation body.
2. two-dimensional tracking turntable according to claim 1 surpasses 360 ° of rotary position-limit mechanisms, it is characterized in that: described rotary block is right angle block.
3. two-dimensional tracking turntable according to claim 2 surpasses 360 ° of rotary position-limit mechanisms, it is characterized in that: the maintenance shell fragment for providing right angle block to remain right angle attitude is also provided described limit assembly; Described maintenance shell fragment is " Z " font, and one end of described maintenance shell fragment is fixedly mounted on fixed pedestal, and the other end contacts with the bottom surface of right-angle baffle.
4. two-dimensional tracking turntable according to claim 3 surpasses 360 ° of rotary position-limit mechanisms, it is characterized in that: two Buffer Units that described limit assembly also comprises movable base and is separately positioned on movable base two ends; Described movable base is arranged on fixed pedestal; Described right angle block is hingedly mounted on movable base; Described movable base can move along the direction of clashing into when spacing preiection clashes into right angle block; Described Buffer Unit comprises spring and baffle plate; Described baffle plate is fixedly mounted on fixed pedestal, and one end of described spring is arranged on the end face of movable base, and the other end is arranged on baffle plate.
5. two-dimensional tracking turntable according to claim 4 surpasses 360 ° of rotary position-limit mechanisms, it is characterized in that: described Buffer Unit also comprises the rubber blanket being arranged on baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296978.2U CN204007668U (en) | 2014-06-05 | 2014-06-05 | Two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296978.2U CN204007668U (en) | 2014-06-05 | 2014-06-05 | Two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms |
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| Publication Number | Publication Date |
|---|---|
| CN204007668U true CN204007668U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296978.2U Withdrawn - After Issue CN204007668U (en) | 2014-06-05 | 2014-06-05 | Two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms |
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| Country | Link |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061951A (en) * | 2014-06-05 | 2014-09-24 | 中国科学院西安光学精密机械研究所 | Super 360-degree rotating limiting mechanism of two-dimensional tracking turntable |
| CN105197852A (en) * | 2015-11-02 | 2015-12-30 | 湖南星邦重工有限公司 | High altitude operating vehicle |
| CN105443942A (en) * | 2016-01-06 | 2016-03-30 | 中国科学院长春光学精密机械与物理研究所 | Rotation limiting device with angle of greater than 360 degrees and smaller than 720 degrees |
| CN111409874A (en) * | 2020-03-10 | 2020-07-14 | 上海卫星工程研究所 | Two-dimensional rotary table locking and unlocking device suitable for spacecraft |
| CN111692482A (en) * | 2020-06-19 | 2020-09-22 | 中国电子科技集团公司第二十九研究所 | Mechanical limiting mechanism of rotary table with limited rotation angle range reaching +/-360 degrees |
-
2014
- 2014-06-05 CN CN201420296978.2U patent/CN204007668U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061951A (en) * | 2014-06-05 | 2014-09-24 | 中国科学院西安光学精密机械研究所 | Super 360-degree rotating limiting mechanism of two-dimensional tracking turntable |
| CN104061951B (en) * | 2014-06-05 | 2016-08-17 | 中国科学院西安光学精密机械研究所 | Two-dimensional tracking turntable surpasses 360 ° of rotary position-limit mechanisms |
| CN105197852A (en) * | 2015-11-02 | 2015-12-30 | 湖南星邦重工有限公司 | High altitude operating vehicle |
| CN105443942A (en) * | 2016-01-06 | 2016-03-30 | 中国科学院长春光学精密机械与物理研究所 | Rotation limiting device with angle of greater than 360 degrees and smaller than 720 degrees |
| CN111409874A (en) * | 2020-03-10 | 2020-07-14 | 上海卫星工程研究所 | Two-dimensional rotary table locking and unlocking device suitable for spacecraft |
| CN111692482A (en) * | 2020-06-19 | 2020-09-22 | 中国电子科技集团公司第二十九研究所 | Mechanical limiting mechanism of rotary table with limited rotation angle range reaching +/-360 degrees |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160817 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |