CN202379637U - Rotation angle measuring device of tower crane - Google Patents
Rotation angle measuring device of tower crane Download PDFInfo
- Publication number
- CN202379637U CN202379637U CN 201120573999 CN201120573999U CN202379637U CN 202379637 U CN202379637 U CN 202379637U CN 201120573999 CN201120573999 CN 201120573999 CN 201120573999 U CN201120573999 U CN 201120573999U CN 202379637 U CN202379637 U CN 202379637U
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- CN
- China
- Prior art keywords
- tower crane
- rotation angle
- permanent magnet
- input shaft
- sensitive element
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- Expired - Fee Related
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a rotation angle measuring device of a tower crane, which is structurally formed by a small gear, a stroke limiter, a microprocessor, an elastic coupler, an input shaft, a permanent magnet and a magnetic sensitive element. The small gear is meshed with a rotation gear ring of the tower crane and installed on an input shaft of the stroke limiter, an output shaft of the stroke limiter is connected with the input shaft through the elastic coupler, the permanent magnet is installed on the input shaft and arranged above the magnetic sensitive element, and the magnetic sensitive element and the microprocessor matched with the magnetic sensitive element are located on a circuit board and fixedly arranged on a tower crane arm opposite to the permanent magnet. Compared with the prior art, the rotation angle measuring device of the tower crane has the advantages of being convenient to install, high in resolution ratio, good in temperature stability, long in service life, excellent in cost performance, reasonable in design, simple in structure, convenient to use and the like. Therefore, the rotation angle measuring device of the tower crane has good use valve on measurement of the rotation angle of the tower crane.
Description
1, technical field
The utility model relates to building safety monitoring field, specifically a kind of tower crane rotation angle measurement unit.
2, background technology
Tower crane is as widely used a kind of main construction machinery and equipment in China's building installation engineering, for high-building construction, and indispensable important construction machinery and equipment especially.Along with being widely used of tower crane, its safety problem also can not be ignored.
The tower crane degreeof turn is as important monitoring parameter of tower crane safety monitoring system; Originally the mainly range estimation through chaufeur; Some tower crane degreeof turn detecting devices mainly adopted potential device and optoelectronic angle coder to realize in the last few years; Adopt the detecting device price of potential device cheap, but have short shortcoming in service life; Adopt the device precision of photoelectric encoder high, but price comparison is expensive.
3, summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, and a kind of tower crane rotation angle measurement unit is provided.
The technical scheme of the utility model realizes by following mode; Its structure is made up of miniature gears, range limiter, microprocessor, elastic coupling, input shaft, permanent magnet and magnet-sensitive element; The rotary teeth wheel rim engagement of miniature gears and tower crane also is loaded on the input shaft of range limiter; The output shaft of range limiter is connected with input shaft through elastic coupling; Permanent magnet is installed on the input shaft, permanent magnet be arranged on magnet-sensitive element directly over, the microprocessor that magnet-sensitive element is mated is positioned on the circuit card fixed in position on the big arm of the relative tower crane of permanent magnet.
Above-mentioned permanent magnet is to polar.
Above-mentioned permanent magnet is set to cylindrical.
The shared circuit card of above-mentioned microprocessor and magnet-sensitive element is encapsulated in the waterproof seal.
Above-mentioned range limiter is selected DXZ series range limiter for use.
During use; Input shaft rotates under the drive of range limiter; The magnetic field that the permanent magnet rotation changes utilizes the non-contacting characteristics of magnet-sensitive element induced magnetism signal, cooperates microprocessor to carry out intelligent signal conditioning; The output specific signal is given safety of tower crane monitored control system loop, and then calculates and demonstrate the degreeof turn of weight.
The utility model has the advantages that:
A kind of tower crane rotation angle measurement unit of the utility model is compared with prior art, has easy for installationly, and resolution is high; Temperature stability is good; Long service life, characteristics such as cost performance excellence, and also the utility model also has characteristics such as reasonable in design, simple in structure, easy to use; Thereby,, the tower crane degreeof turn has good value of service on measuring.
4, description of drawings
Fig. 1 is a kind of structural representation of tower crane rotation angle measurement unit;
Mark in the accompanying drawing is represented respectively;
1, miniature gears; 2, range limiter; 3, microprocessor; 4, elastic coupling; 5, input shaft; 6, permanent magnet; 7, magnet-sensitive element.
5, the specific embodiment
Below in conjunction with accompanying drawing a kind of tower crane rotation angle measurement unit of the utility model is done following the detailed description.
As shown in Figure 1; A kind of its structure of tower crane rotation angle measurement unit of the utility model is made up of miniature gears 1, range limiter 2, microprocessor 3, elastic coupling 4, input shaft 5, permanent magnet 6 and magnet-sensitive element 7; Miniature gears 1 meshes and is loaded on the input shaft of range limiter 2 with the rotary teeth wheel rim of tower crane; When the tower machine turned round, the output shaft of range limiter 2 was connected with input shaft 5 through elastic coupling 4, and permanent magnet 6 is installed on the input shaft 5; Permanent magnet 6 be arranged on magnet-sensitive element 7 directly over; Make magnet-sensitive element 7 can respond to the angle position of permanent magnet 6, the microprocessor position 3 that magnet-sensitive element 7 is mated is positioned on the same circuit card, is arranged on to be fixed in the waterproof seal on the relative big arm of tower crane of permanent magnet 6.
Range limiter 2 is selected DXZ series range limiter for use.
A kind of its processing and fabricating of tower crane rotation angle measurement unit of the utility model is very simple and convenient, can process shown in the accompanying drawing to specifications.
Except that the described technical characterictic of specification sheets, be the known technology of those skilled in the art.
Claims (5)
1. tower crane rotation angle measurement unit; It is characterized in that constituting by miniature gears, range limiter, microprocessor, elastic coupling, input shaft, permanent magnet and magnet-sensitive element; The rotary teeth wheel rim engagement of miniature gears and tower crane also is loaded on the input shaft of range limiter; The output shaft of range limiter is connected with input shaft through elastic coupling; Permanent magnet is installed on the input shaft, permanent magnet be arranged on magnet-sensitive element directly over, the microprocessor that magnet-sensitive element is mated is positioned on the circuit card fixed in position on the big arm of the relative tower crane of permanent magnet.
2. a kind of tower crane rotation angle measurement unit according to claim 1 is characterized in that permanent magnet is to polar.
3. a kind of tower crane rotation angle measurement unit according to claim 1 and 2, it is cylindrical to it is characterized in that permanent magnet is set to.
4. a kind of tower crane rotation angle measurement unit according to claim 1 is characterized in that the shared circuit card of microprocessor and magnet-sensitive element is encapsulated in the waterproof seal.
5. a kind of tower crane rotation angle measurement unit according to claim 1 is characterized in that range limiter selects DXZ series range limiter for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120573999 CN202379637U (en) | 2011-12-23 | 2011-12-23 | Rotation angle measuring device of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120573999 CN202379637U (en) | 2011-12-23 | 2011-12-23 | Rotation angle measuring device of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202379637U true CN202379637U (en) | 2012-08-15 |
Family
ID=46628154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120573999 Expired - Fee Related CN202379637U (en) | 2011-12-23 | 2011-12-23 | Rotation angle measuring device of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202379637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555765A (en) * | 2015-01-19 | 2015-04-29 | 三峡大学 | System and method for monitoring perpendicularity of tower crane |
| CN105438984A (en) * | 2014-08-06 | 2016-03-30 | 宜昌市凯诺科技开发有限公司 | Crane slewing position contact-type measurement device and method |
-
2011
- 2011-12-23 CN CN 201120573999 patent/CN202379637U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105438984A (en) * | 2014-08-06 | 2016-03-30 | 宜昌市凯诺科技开发有限公司 | Crane slewing position contact-type measurement device and method |
| CN105438984B (en) * | 2014-08-06 | 2017-03-29 | 宜昌市凯诺电气有限公司 | A kind of contact measuring apparatus and method of crane rotation position |
| CN104555765A (en) * | 2015-01-19 | 2015-04-29 | 三峡大学 | System and method for monitoring perpendicularity of tower crane |
| CN104555765B (en) * | 2015-01-19 | 2016-06-01 | 三峡大学 | A kind of tower machine verticality Monitoring systems and monitoring 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 |
Granted publication date: 20120815 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |