CN204188133U - A kind of pick-up unit of large span antenna spindle twist - Google Patents
A kind of pick-up unit of large span antenna spindle twist Download PDFInfo
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- CN204188133U CN204188133U CN201420641229.9U CN201420641229U CN204188133U CN 204188133 U CN204188133 U CN 204188133U CN 201420641229 U CN201420641229 U CN 201420641229U CN 204188133 U CN204188133 U CN 204188133U
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- main shaft
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Abstract
The utility model relates to a kind of pick-up unit of large span antenna spindle twist, comprise antenna, it is left, right two ends are respectively by ring flange and anticlockwise main shaft, right rotation main shaft is connected, anticlockwise main shaft and left shaft holder are installed the Left Angle pick-up unit for detecting anticlockwise Spindle rotation angle degree, right rotation main shaft and right bearing seat are installed the right angle detection device for detecting right rotation Spindle rotation angle degree, Left Angle pick-up unit, the signal output part of right angle detection device is all connected with the signal input part of counter, the signal output part of counter is as the signal output part of this device.The utility model detects the real time rotation angle of antenna ends rotary main shaft simultaneously, and pass through rolling counters forward, calculate two ends anglec of rotation difference again, this difference is directly proportional to the twist of antenna spindle, angle difference is sent to follow-up driver, as the basis for estimation of further action by RS485 serial ports.
Description
Technical field
The utility model relates to microwave antenna detection technique field, especially a kind of pick-up unit of large span antenna spindle twist.
Background technology
Large-scale fixed microwave antenna is usually used in strategic early-warning and survey of deep space, in Homeland Defense and space scientific research, play very important effect.Orientation is fixed, antenna system that luffing angle is adjustable, adopt large span twin-engined drives rotary main shaft, and then to drive antenna to rotate be a kind of selectable form.Because the torsional property of most of microwave antenna is poor, how to ensure that synchronously driven simultaneously the avoiding of two-shipper produces excessive torsion, to avoid causing the destruction to antenna precision, be the problem that must consider and solve, the real-time detection realizing rotary main shaft twist is then the most basic requirement.
There is no open source information introduction at present about the detection method of large span antenna spindle twist.For the antenna system possessing elevation angle regulating function of existing weaponry and equipment, in order to avoid the generation of the problems referred to above, major part directly adopts portion in antennas to install single driving mechanism to adjust the elevation angle of antenna, also brings system layout's difficulty, profile unsightly and the shortcoming such as driving force is limited simultaneously.
Utility model content
The purpose of this utility model is that providing a kind of can detect the torsional capacity at antenna spindle two ends and asynchronous degree in real time, make control decision for system and basis for estimation is provided, avoid the pick-up unit to the large span antenna spindle twist that antenna precision damages.
For achieving the above object, the utility model have employed following technical scheme: a kind of pick-up unit of large span antenna spindle twist, comprise antenna, it is left, right two ends are respectively by ring flange and anticlockwise main shaft, right rotation main shaft is connected, left shaft holder and anticlockwise main shaft interference fit, right bearing seat and right rotation main shaft interference fit, described anticlockwise main shaft and left shaft holder are installed the Left Angle pick-up unit for detecting anticlockwise Spindle rotation angle degree, described right rotation main shaft and right bearing seat are installed the right angle detection device for detecting right rotation Spindle rotation angle degree, Left Angle pick-up unit, the signal output part of right angle detection device is all connected with the signal input part of counter, the signal output part of counter is as the signal output part of this device.
Described Left Angle pick-up unit is made up of the first steel grid chi, the first read head and the first cable, and the first steel grid chi is set on the axle body of anticlockwise main shaft, and the first read head is fixedly mounted on left shaft holder, has gap between the first read head and the first steel grid chi; Described right angle detection device is made up of the second steel grid chi, the second read head and the second cable, and the second steel grid chi is set on the axle body of right rotation main shaft, and the second read head is fixedly mounted on right bearing seat, has gap between the second read head and the second steel grid chi; Described counter is made up of cable interface circuit, programmable controller PLC and Switching Power Supply, cable interface circuit respectively with programmable controller PLC, Switching Power Supply both-way communication.
Described first read head is connected with the signal input part of counter by the first cable, and described second read head is connected with the signal input part of counter by the second cable; Described cable interface circuit connects supply main, RS485 Serial Port Line, the first cable and the second cable respectively.
Described programmable controller PLC is made up of left pulse counter module, right pulse counter module, computing module and 485 communication modules, the input end of described left pulse counter module, right pulse counter module is connected with the output terminal of cable interface circuit, described left pulse counter module, the output terminal of right pulse counter module are connected with the input end of computing module, the output terminal of computing module is connected with the input end of 485 communication modules, and the output terminal of 485 communication modules is connected with the input end of cable interface circuit.
Described programmable controller PLC adopts CPU226 module.
As shown from the above technical solution, the utility model can detect the real time rotation angle of antenna ends rotary main shaft simultaneously, and pass through rolling counters forward, calculate two ends anglec of rotation difference again, this difference is directly proportional to the twist of antenna spindle, angle difference is exported to follow-up driver, as the basis for estimation of further action by RS485 serial ports.The utility model is applicable to twin-engined drives antenna elevation angle adjustment System, and span is large, the occasion that antenna poor rigidity, accuracy requirement are high; Adopt the method for indirect inspection to achieve the measurement of antenna twist, feasibility is comparatively strong, is easy to through engineering approaches; Due to the measuring accuracy of left and right angle detection device and resolution higher, so whole system measuring accuracy and highly sensitive.
Accompanying drawing explanation
Fig. 1 is apparatus structure schematic diagram of the present utility model.
Fig. 2 is composition and the scheme of installation of left/right angle detection device in Fig. 1.
Fig. 3 is the circuit block diagram of Fig. 1 Counter.
Fig. 4 is the circuit block diagram of programmable controller PLC in Fig. 3.
Embodiment
A kind of pick-up unit of large span antenna spindle twist, comprise antenna 10, it is left, right two ends are respectively by ring flange and anticlockwise main shaft 20, right rotation main shaft 30 is connected, left shaft holder 40 and anticlockwise main shaft 20 interference fit, right bearing seat 50 and right rotation main shaft 30 interference fit, described anticlockwise main shaft 20 and left shaft holder 40 are installed the Left Angle pick-up unit 60 for detecting anticlockwise main shaft 20 anglec of rotation, described right rotation main shaft 30 and right bearing seat 50 are installed the right angle detection device 70 for detecting right rotation main shaft 30 anglec of rotation, Left Angle pick-up unit 60, the signal output part of right angle detection device 70 is all connected with the signal input part of counter 80, the signal output part of counter 80 is as the signal output part of this device, as shown in Figure 1.Left shaft holder 40, right bearing seat 50 are connected with the earth by bolt simultaneously, for supporting antenna 10 and rotary main shaft, and are that antenna 10 rotates reduction friction.
As shown in Figure 2, described Left Angle pick-up unit 60 is made up of the first steel grid chi 61, first read head 62 and the first cable 63, first steel grid chi 61 is set on the axle body of anticlockwise main shaft 20, first read head 62 is fixedly mounted on left shaft holder 40, has gap between the first read head 62 and the first steel grid chi 61; Described right angle detection device 70 is made up of the second steel grid chi 71, second read head 72 and the second cable 73, second steel grid chi 71 is set on the axle body of right rotation main shaft 30, second read head 72 is fixedly mounted on right bearing seat 50, has gap between the second read head 72 and the second steel grid chi 71; As shown in Figure 3, described counter 80 is made up of cable interface circuit 81, programmable controller PLC 82 and Switching Power Supply 83, cable interface circuit 81 respectively with programmable controller PLC 82, Switching Power Supply 83 both-way communication, counter 80 counts the pulse that Left Angle pick-up unit 60 and right angle detection device 70 send, compare through calculating, sent the data of rotary main shaft twist by RS485 serial ports.First and second steel grid chi 61,71 described and first and second read head 62,72 are commercial suite of sensors, and the model of steel grid chi is WMR-302-1015-01, and the model of read head is WMK-302.4-1015-5-3.
As shown in Figure 1,3, described first read head 62 is connected with the signal input part of counter 80 by the first cable 63, and described second read head 72 is connected with the signal input part of counter 80 by the second cable 73; Described cable interface circuit 81 connects supply main, RS485 Serial Port Line, the first cable 63 and the second cable 73 respectively.As shown in Figure 4, described programmable controller PLC 82 is made up of left pulse counter module, right pulse counter module, computing module and 485 communication modules, the input end of described left pulse counter module, right pulse counter module is connected with the output terminal of cable interface circuit 81, described left pulse counter module, the output terminal of right pulse counter module are connected with the input end of computing module, the output terminal of computing module is connected with the input end of 485 communication modules, and the output terminal of 485 communication modules is connected with the input end of cable interface circuit 81.Described programmable controller PLC 82 adopts CPU226 module.Civil power to cable interface circuit 81, then to be converted to direct supply to the power supply of first and second read head 62,72 by Switching Power Supply 83 through supply main by 220V civil power, and civil power is directly powered to programmable controller PLC through cable interface circuit 81.
Operationally, first, counter 80 powers on, and in the adjustment process at antenna 10 elevation angle, the second read head 72 in the first read head 62 of Left Angle pick-up unit 60, right angle detection device 70 sends the pulse of anticlockwise main shaft 20, right rotation main shaft 30 anglec of rotation; Secondly, counter 80 receives the pulse of first and second read head 62,72 input, and counts respectively; Again, counter 80 calculates the difference of two groups of count values in real time; Finally, counter 80 start by set date serial ports output function, exports two groups of count values and both differences.If this difference is zero, then illustrate that left and right motor achieves synchronous driving, otherwise, then illustrate that antenna 10 is reversed, and exists twist, needs to be adjusted.
The pulse number that the left pulse counter module of described counter 80, right pulse counter module record Left Angle pick-up unit 60 respectively, right angle detection device 70 sends, the computing module subsequently data being passed to counter 80 performs subtraction, and 485 communication modules finally by counter 80 will represent that the data of rotary main shaft twist send.
In the embodiment of the utility model patent, communication hardware adopts RS485 to realize.Self-defining communication format is as shown in table 1, and message carries out transmitting (data are sexadecimal) in units of byte, and data updating rate is 50Hz.Each byte packet of transmission contains 1 start bit, 8 data bit, no parity check, 1 position of rest.Baud rate is set to 9600bps, no parity, 8 data bit, 1 position of rest.
Table 1
In sum, the utility model is as detection means by Left Angle pick-up unit 60, right angle detection device 70, counter 80, with large span antenna 10 elevation angle adjustment System be made up of antenna 10, anticlockwise main shaft 20, right rotation main shaft 30, left shaft holder 40, right bearing seat 50 for measurand, achieve the real-time detection of antenna 10 twist of this system, and testing result is delivered to by serial ports the basis for estimation that follow-up drive system adjusts as further action.The utility model patent well achieve the large span of Dual-motors Driving, high precision, Low rigidity antenna elevation angle adjustment System the twist of antenna spindle detect.
Claims (5)
1. the pick-up unit of a large span antenna spindle twist, comprise antenna (10), it is left, right two ends are respectively by ring flange and anticlockwise main shaft (20), right rotation main shaft (30) is connected, left shaft holder (40) and anticlockwise main shaft (20) interference fit, right bearing seat (50) and right rotation main shaft (30) interference fit, it is characterized in that: described anticlockwise main shaft (20) and the upper Left Angle pick-up unit (60) installed for detecting anticlockwise main shaft (20) anglec of rotation of left shaft holder (40), described right rotation main shaft (30) and the upper right angle detection device (70) installed for detecting right rotation main shaft (30) anglec of rotation of right bearing seat (50), Left Angle pick-up unit (60), the signal output part of right angle detection device (70) is all connected with the signal input part of counter (80), the signal output part of counter (80) is as the signal output part of this device.
2. the pick-up unit of a kind of large span antenna spindle twist according to claim 1, it is characterized in that: described Left Angle pick-up unit (60) is made up of the first steel grid chi (61), the first read head (62) and the first cable (63), first steel grid chi (61) is set on the axle body of anticlockwise main shaft (20), first read head (62) is fixedly mounted on left shaft holder (40), has gap between the first read head (62) and the first steel grid chi (61); Described right angle detection device (70) is made up of the second steel grid chi (71), the second read head (72) and the second cable (73), second steel grid chi (71) is set on the axle body of right rotation main shaft (30), second read head (72) is fixedly mounted on right bearing seat (50), has gap between the second read head (72) and the second steel grid chi (71); Described counter (80) is made up of cable interface circuit (81), programmable controller PLC (82) and Switching Power Supply (83), cable interface circuit (81) respectively with programmable controller PLC (82), Switching Power Supply (83) both-way communication.
3. the pick-up unit of a kind of large span antenna spindle twist according to claim 2, it is characterized in that: described first read head (62) is connected by the signal input part of the first cable (63) with counter (80), described second read head (72) is connected by the signal input part of the second cable (73) with counter (80); Described cable interface circuit (81) connects supply main, RS485 Serial Port Line, the first cable (63) and the second cable (73) respectively.
4. the pick-up unit of a kind of large span antenna spindle twist according to claim 2, it is characterized in that: described programmable controller PLC (82) is by left pulse counter module, right pulse counter module, computing module and 485 communication modules composition, described left pulse counter module, the input end of right pulse counter module is connected with the output terminal of cable interface circuit (81), described left pulse counter module, the output terminal of right pulse counter module is connected with the input end of computing module, the output terminal of computing module is connected with the input end of 485 communication modules, the output terminal of 485 communication modules is connected with the input end of cable interface circuit (81).
5. the pick-up unit of a kind of large span antenna spindle twist according to claim 2, is characterized in that: described programmable controller PLC (82) adopts CPU226 module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641229.9U CN204188133U (en) | 2014-10-31 | 2014-10-31 | A kind of pick-up unit of large span antenna spindle twist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641229.9U CN204188133U (en) | 2014-10-31 | 2014-10-31 | A kind of pick-up unit of large span antenna spindle twist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204188133U true CN204188133U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641229.9U Withdrawn - After Issue CN204188133U (en) | 2014-10-31 | 2014-10-31 | A kind of pick-up unit of large span antenna spindle twist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204188133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457553A (en) * | 2014-10-31 | 2015-03-25 | 中国电子科技集团公司第三十八研究所 | Large-span antenna spindle torsion degree detection device and method |
| CN109668502A (en) * | 2017-10-16 | 2019-04-23 | 上海同济检测技术有限公司 | Profile reverses measuring device |
-
2014
- 2014-10-31 CN CN201420641229.9U patent/CN204188133U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457553A (en) * | 2014-10-31 | 2015-03-25 | 中国电子科技集团公司第三十八研究所 | Large-span antenna spindle torsion degree detection device and method |
| CN104457553B (en) * | 2014-10-31 | 2017-04-19 | 中国电子科技集团公司第三十八研究所 | Large-span antenna spindle torsion degree detection device and method |
| CN109668502A (en) * | 2017-10-16 | 2019-04-23 | 上海同济检测技术有限公司 | Profile reverses measuring device |
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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 | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20170419 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150304 Effective date of abandoning: 20170419 |