CN202744212U - Rotation angle monitoring device for tower crane - Google Patents
Rotation angle monitoring device for tower crane Download PDFInfo
- Publication number
- CN202744212U CN202744212U CN 201220440008 CN201220440008U CN202744212U CN 202744212 U CN202744212 U CN 202744212U CN 201220440008 CN201220440008 CN 201220440008 CN 201220440008 U CN201220440008 U CN 201220440008U CN 202744212 U CN202744212 U CN 202744212U
- Authority
- CN
- China
- Prior art keywords
- absolute value
- value encoder
- encoder
- rotation angle
- connecting shaft
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a rotation angle monitoring device for a tower crane, which comprises a connecting plate, an encoder fixing bracket, a single-circle absolute value encoder, a spring flexible connecting shaft and a stationary connecting shaft, wherein the single-circle absolute value encoder is fixed onto the encoder fixing bracket through bolts; the encoder fixing bracket is connected with the connecting plate through bolts; the connecting plate is welded and fixed together with a centre collector ring bottom inner rotating disc; the spring flexible connecting shaft connects a rotating shaft of the single-circle absolute value encoder with the stationary connecting shaft; the stationary connecting shaft is fixedly connected with a tower body; and the single-circle absolute value encoder is communicated with a PLC (programmable logic controller) control element. The rotation angle monitoring device for the tower crane adopts the communication transmission manner, has high transmission speed, high anti-interference capability and high measurement accuracy, has the advantages of simple and compact structure and convenience for operation and maintenance, can be mounted and demounted flexibly, and is applicable to various cranes.
Description
Technical field
The utility model relates to a kind of monitoring device, relates in particular to a kind of degreeof turn monitoring device.
Background technology
At present, the application that approach switch, photoelectric switch are located in Industry Control is quite ripe,, development along with the industry control industry, we not only will realize positioning function, also will be to the future development of informationization, flexibility, multifunction, economization, this just requires us can some current location parameters of teletransmission, in order to position more easily adjustment, conversion kinematic velocity, control driver train (such as frequency converter, stepping motor) etc., and can reduce cost, increase the service life.Now tower machine degreeof turn monitoring device commonly used mainly contains: angle sensor device, reducing gear install potentiometer device, pulse counting equipment etc. additional, but these install mostly complex structure, easily be disturbed, particularity is relatively poor.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of simply constructed tower machine degreeof turn monitoring device.
For solving this technical matters, the utility model provides a kind of tower crane rotation angle monitor device, comprise connecting panel, the coder fixed support, the individual pen absolute value encoder, the spring axle that is flexible coupling, static adapter shaft, described individual pen absolute value encoder is bolted on the coder fixed support, described coder fixed support and connecting panel are bolted, described connecting panel and centre collector ring bottom inner rotary table are welded and fixed, the described spring axle that is flexible coupling is connected the S. A. of individual pen absolute value encoder with stationary axle, this static adapter shaft is captiveed joint with body of the tower.
Described individual pen absolute value encoder and the communication of PLC control element.
Beneficial effect: the crane rotation angle monitor device that the utility model provides adopts the communication transfer mode, speed of transmission is fast, antijamming capability is strong, survey precision is high, has easily advantage of simple and compact for structure, operating maintenance, Assembly ﹠Disassembly is applicable to all kinds hoisting crane flexibly.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is principle of work schematic diagram of the present utility model.
Among the figure: 1 connecting panel, 2 coder fixed supports, 3 individual pen absolute value encoders, 4 springs be flexible coupling axle, 5 static adapter shafts, 6 centre collector rings bottom inner rotary table, I swing type mechanism, II body of the tower.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is done specific descriptions.
Figure 1 shows that structural representation of the present utility model.
The utility model comprises connecting panel 1, coder fixed support 2, individual pen absolute value encoder 3, spring be flexible coupling axle 4, static adapter shaft 5.
Described individual pen absolute value encoder 3 is main elements of the present utility model, is bolted on the coder fixed support 2, with tower machine synchronous revolving.
Described individual pen absolute value encoder 3 and the communication of PLC control element.
Described coder fixed support 2 is bolted with connecting panel 1.
Described connecting panel 1 is welded and fixed synchronous revolving during the revolution of tower machine with centre collector ring bottom inner rotary table 6.
The described spring axle 4 that is flexible coupling is flexible coupling S. A. and static adapter shaft 5 elasticity of individual pen absolute value encoder 3, and it is with respect to the body of the tower transfixion.
This employing elasticity is flexible coupling, and can reduce the damage that the factors such as play because of user's axle, location of the core be inaccurate cause coder axle output shaft and code-disc.
Described static adapter shaft 5 is captiveed joint with body of the tower, and is relative with body of the tower static.
Figure 2 shows that principle of work schematic diagram of the present utility model.
When the utility model is worked, centre collector ring bottom inner rotary table 6 rotates, driving connecting panel 1 rotates, because connecting panel 1 is connected for bolt with coder fixed support 2, therefore drive 2 rotations of coder fixed support, individual pen absolute value encoder 3 is similarly bolt with coder fixed support 2 and is connected, and individual pen absolute value encoder 3 is followed rotation; The S. A. of individual pen absolute value encoder 3 and static adapter shaft 5 are connected by the spring axle 4 that is flexible coupling, and static adapter shaft 5 is connected with body of the tower II, is stationary parts, so individual pen absolute value encoder 3 axles remain static with respect to body of the tower II.In the whole turning course, individual pen absolute value encoder 3 is with swing type mechanism I rotation, and individual pen absolute value encoder 3 axle transfixions.
The utility model is that individual pen absolute value encoder 3 is captiveed joint with centre collector ring bottom inner rotary table 6, the bearing lower surface of individual pen absolute value encoder 3 output shafts and body of the tower II is fixed, thereby realize the relative motion of coder and coder output shaft, from principle of work, individual pen absolute value encoder 3 is a kind of sensors that the geometry of machinery displacement on the output shaft converted to pulse or digital quantity by opto-electronic conversion, the monitoring function that the utility model will be realized is exactly the relative displacement that will realize between individual pen absolute value encoder 3 output shafts and the coder, reaches the purpose that takes measurement of an angle.
The utility model requires individual pen absolute value encoder 3 positions and static adapter shaft 5 all to be in the center-point of rotation, the difference of a little can be corrected by be flexible coupling axle 4 of spring, but when position deviation is excessive will cause individual pen absolute value encoder 3 can't synchronous rotary or rotation skid, and affect individual pen absolute value encoder 3 and spring and be flexible coupling service life of axle 4.
The utility model adopts the communication transfer mode based on the metering system of individual pen absolute value encoder, speed of transmission is fast, antijamming capability is strong, as long as solve the safe installation question of a rotary encoder, can avoid at the scene mechanical erection trouble of many approach switchs, photoelectric switch, easily be damaged and suffer the problems such as high temperature, aqueous vapor puzzlement.
The utility model is owing to being photoelectric code disk, and the machinery-free loss needs only the installation site accurate, and its service life is often very long; There is unique address corresponding in 360 ° of scopes, even absolute value encoder is in the situation that power down, as long as the coder axle has rotated an angle and just can obtain an accurate shift value, and each shift value can both convert Gray code or binary code exactly to, so survey precision is high.
The utility model simple structure, compact conformation, simple to operate, easy to maintenance, Assembly ﹠Disassembly is applicable to all kinds hoisting crane flexibly.
The above-mentioned embodiment of the utility model, just casehistory is not only, all in the utility model scope or the change that is equal in the scope of the present utility model all surrounded by the utility model.
Claims (2)
1. tower crane rotation angle monitor device, it is characterized in that: comprise connecting panel (1), coder fixed support (2), individual pen absolute value encoder (3), the spring axle (4) that is flexible coupling, static adapter shaft (5), described individual pen absolute value encoder (3) is bolted on the coder fixed support (2), described coder fixed support (2) is bolted with connecting panel (1), described connecting panel (1) is welded and fixed with centre collector ring bottom inner rotary table (6), the described spring axle (4) that is flexible coupling is connected (5) with the S. A. of individual pen absolute value encoder (3) with stationary axle, this static adapter shaft (5) is captiveed joint with body of the tower.
2. tower crane rotation angle monitor device according to claim 1 is characterized in that: described individual pen absolute value encoder (3) and the communication of PLC control element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220440008 CN202744212U (en) | 2012-08-31 | 2012-08-31 | Rotation angle monitoring device for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220440008 CN202744212U (en) | 2012-08-31 | 2012-08-31 | Rotation angle monitoring device for tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202744212U true CN202744212U (en) | 2013-02-20 |
Family
ID=47703641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220440008 Expired - Fee Related CN202744212U (en) | 2012-08-31 | 2012-08-31 | Rotation angle monitoring device for tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202744212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522302A (en) * | 2016-12-05 | 2017-03-22 | 太原重型机械集团工程技术研发有限公司 | Excavator and excavator rotation angle detection device and method |
| CN107253669A (en) * | 2017-08-14 | 2017-10-17 | 三海洋重工有限公司 | Rotary machinery locating and detecting device and position finding and detection method |
-
2012
- 2012-08-31 CN CN 201220440008 patent/CN202744212U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522302A (en) * | 2016-12-05 | 2017-03-22 | 太原重型机械集团工程技术研发有限公司 | Excavator and excavator rotation angle detection device and method |
| CN106522302B (en) * | 2016-12-05 | 2018-09-25 | 太原重型机械集团工程技术研发有限公司 | The angle of revolution detection device and method of excavator, excavator |
| CN107253669A (en) * | 2017-08-14 | 2017-10-17 | 三海洋重工有限公司 | Rotary machinery locating and detecting device and position finding and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20170831 |