CN2918356Y - Mounting structure of weighting sensor in tower crane - Google Patents
Mounting structure of weighting sensor in tower crane Download PDFInfo
- Publication number
- CN2918356Y CN2918356Y CN 200620042637 CN200620042637U CN2918356Y CN 2918356 Y CN2918356 Y CN 2918356Y CN 200620042637 CN200620042637 CN 200620042637 CN 200620042637 U CN200620042637 U CN 200620042637U CN 2918356 Y CN2918356 Y CN 2918356Y
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- CN
- China
- Prior art keywords
- tower crane
- support
- load cells
- wirerope
- utility
- 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 - Lifetime
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Abstract
The utility model relates to an installation structure of weighing sensor in tower crane, which comprises a boom top (1) of the tower crane, a wire rope (2) of the tower crane and a weighing sensor (3); one end of the weighing sensor (3) is connected with one end of a first support (4), the other end of the weighing sensor (3) is connected with one end of a second support (5), the other end of the first support (4) is connected with the boom top (1) of the tower crane, the other end of the second support (5) is connected with the wire rope (2) of the tower crane; the utility model has the advantages that the direct measurement for pulling force of wire rope is adopted, thus other intermediate mechanical facilities are required, thereby greatly reducing error and improving survey accuracy.
Description
Technical field
The utility model relates to a kind of tower crane, relates in particular to the installation site of the LOAD CELLS of this tower crane.
Background technology
The safety problem of tower crane is an important problem always.Along with the development of modern electronic technology, a large amount of tower crane safety monitoring systems have been emerged in large numbers based on electronic machine.The collection of weight parameter is vital for total system, make every effort to accurate.In addition, also to take into account equipment installation at the scene and reliable.
Existing weight sensor multiple scheme is installed.The patent No. is in the patent of 200410004306.0 by name " hoisting crane kind equipment moment display device ", and a kind of mount scheme is provided.Weight sensor is installed between existing limiter of moment two block plates of weight-lifting equipment, is by the spring steel plate stress and deformation, weighting apparatus sampling force signal.
Also have a kind of scheme, be to be pressed on the wirerope, and be rigidly connected between LOAD CELLS and the pulley,, measure the gravity that bears on the wirerope by measuring the tension force of wirerope by pulley.
And these modes all are the indirectly testing to weight in fact, be subjected to the influence of other mechanical equipment.On the one hand, the mechanical condition of tower machine directly has influence on the precision of measurement; On the other hand, these installation methods all will be done the debugging of mechanical aspects at the scene, and installation technology also directly has influence on the precision of measurement, and, to on-site installation also more inconvenience arranged.
Summary of the invention
The utility model technical issues that need to address have provided the mounting structure of LOAD CELLS in a kind of tower crane, are intended to solve above-mentioned defective.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: the top of tower machine arm, tower machine wirerope; Also comprise a LOAD CELLS; One end of described LOAD CELLS links to each other with an end of first support, and the other end of LOAD CELLS links to each other with an end of second support; The top of the other end of described first support and tower machine arm is fixedly linked, and the other end of described second support links to each other with tower machine wirerope.
Compared with prior art, the beneficial effects of the utility model are: owing to be the pulling force of directly measuring wirerope, avoided other intermediate mechanical facility, reduced error greatly; Increased survey precision.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the enlarged drawing at K place among Fig. 1;
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
The utility model has adopted the LOAD CELLS of prior art.LOAD CELLS is a sensor that the pulling force signal is converted into electric signal: its in-to-in circuit structure is an electric bridge, sensor internal has a variable resistance, this resistance produces the variation of resistance with suffered stress, the variation of resistance produces the variation of an output voltage by electric bridge, thereby finishes the conversion of signal.Again data are transferred to monitor display by fieldbus.
By Fig. 1, Fig. 2 as seen: the utility model comprises: the top 1 of tower machine arm, tower machine wirerope 2; Also comprise a LOAD CELLS 3; One end of described LOAD CELLS 3 links to each other with an end of first support 4, and the other end of LOAD CELLS 3 links to each other with an end of second support 5; The top 1 of the other end of described first support 4 and tower machine arm is fixedly linked, and the other end of described second support 5 links to each other with tower machine wirerope 2.
The utility model directly joins the two ends of LOAD CELLS with wirerope and arm frame, directly measure the pulling force on the hoisting crane wirerope, after CPU in the weighting apparatus reads the pulling force parameter, according to the group number of movable pulley on the suspension hook and when unloaded on the wirerope existing tension indicator calculate the weight of the goods that hoisting crane slings.
The utility model has following advantage: 1, be the pulling force of directly measuring wirerope, avoided other intermediate mechanical facility, reduced error greatly; The weight peeling is handled also very convenient on the software.2, on using, the main frame of safety control system reads the numerical value of the wirerope pulling force that weighting apparatus provides, and main frame only needs simply be provided with the multiplying power of tower machine suspension hook on software, just can know to such an extent that calculate lifting weight.3, the spot sensor installation process need not the debugging of mechanical aspects, only needs to do simple calibration on weighting apparatus, just can reach very high accuracy.
When the tower machine was worked, LOAD CELLS was directly measured stressed on the suspension hook by wirerope.Therefore, the LOAD CELLS test is exactly the pulling force of real wirerope.LOAD CELLS is utilized the principle of electric bridge, and the pulling force signal is transferred to voltage signal, after the CPU in the weighting apparatus reads, calculates the size of pulling force again.
After the weighting apparatus installation, the school zero of weighing.Weighting apparatus can be noted the wirerope tension force of hoisting crane when unloaded, and when normal operation weighting apparatus calculated the pulling force size, the pulling force that CPU measures in the time of can be with zero load deducted, thereby draws the value of the real pulling force that goods produces.
When the whole system cooperating, miscellaneous equipment reads the wirerope pulling force numerical value that weighting apparatus provides, and multiply by the group number of suspension hook movable pulley again, can draw the load of weight on the suspension hook accurately.
Claims (1)
1. the mounting structure of LOAD CELLS in the tower crane comprises: the top (1) of tower machine arm, tower machine wirerope (2); It is characterized in that: also comprise a LOAD CELLS (3); One end of described LOAD CELLS (3) links to each other with an end of first support (4), and the other end of LOAD CELLS (3) links to each other with an end of second support (5); The top (1) of the other end of described first support (4) and tower machine arm is fixedly linked, and the other end of described second support (5) links to each other with tower machine wirerope (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042637 CN2918356Y (en) | 2006-06-09 | 2006-06-09 | Mounting structure of weighting sensor in tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042637 CN2918356Y (en) | 2006-06-09 | 2006-06-09 | Mounting structure of weighting sensor in tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918356Y true CN2918356Y (en) | 2007-07-04 |
Family
ID=38216170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620042637 Expired - Lifetime CN2918356Y (en) | 2006-06-09 | 2006-06-09 | Mounting structure of weighting sensor in tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918356Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730562A (en) * | 2012-06-11 | 2012-10-17 | 常州市南港港口机械有限公司 | Weighing apparatus of container suspender |
-
2006
- 2006-06-09 CN CN 200620042637 patent/CN2918356Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730562A (en) * | 2012-06-11 | 2012-10-17 | 常州市南港港口机械有限公司 | Weighing apparatus of container suspender |
| CN102730562B (en) * | 2012-06-11 | 2015-06-03 | 常州市南港港口机械有限公司 | Weighing apparatus of container suspender |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI NEW ERA ELECTRIC CO., LTD.; PATENTEE Free format text: FORMER NAME OR ADDRESS: SHANGHAI XINSHIDA ELECTRICAL CO., LTD.; PATENTEE |
|
| CP03 | Change of name, title or address |
Address after: No. 289, Xin Qin Road, Shanghai, Jiading District: 201802 Co-patentee after: Architecture Mechanization Branch, Chinese Academy of Architecture Sciences Patentee after: Shanghai new time electric Limited by Share Ltd Address before: No. 289, Xin Qin Road, Shanghai, Jiading District: 201802 Co-patentee before: Architecture Mechanization Branch, Chinese Academy of Architecture Sciences Patentee before: Shanghai new time Electric Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070704 |
|
| EXPY | Termination of patent right or utility model |