CN201809064U - Gravity measuring device for building crane tower - Google Patents
Gravity measuring device for building crane tower Download PDFInfo
- Publication number
- CN201809064U CN201809064U CN2010202990272U CN201020299027U CN201809064U CN 201809064 U CN201809064 U CN 201809064U CN 2010202990272 U CN2010202990272 U CN 2010202990272U CN 201020299027 U CN201020299027 U CN 201020299027U CN 201809064 U CN201809064 U CN 201809064U
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- Prior art keywords
- pulley
- pressure sensor
- fixed
- bearing
- crane tower
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- Expired - Fee Related
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Abstract
The utility model provides a gravity measuring device for a building crane tower, which comprises a pulley, a bearing, a pulley shaft, a pulley bracket, a pull-pressure sensor and a supporting beam. The pulley shaft is fixed on the pulley bracket, the bearing is arranged on the pulley shaft arranged in the pulley bracket, the pulley is fixed on the bearing, and the pull-pressure sensor is fixed between the pulley bracket and the supporting beam. Since the supporting beam is connected with the crane tower (in a welding or fastening mode), a steel wire rope of the crane tower passes through a point A or a point B of the nylon pulley, then when a weight is hoisted by the steel wire rope, taking the point A for example, stress in D direction is generated at the point A, the pull-pressure sensor is compressed and deforms, and voltage or current signals can be measured through variation of an inner strain gauge, and weight values can be obtained through operation of a main controller. The gravity measuring device can measure weight values of the hoisted weight dynamically without changing the structure of a crane (the crane tower).
Description
Technical field
The utility model relates to a kind of gravimetry device, is specifically related to a kind of building tower crane gravimetry device.
Background technology
The side-compression sensor is adopted in the gravimetry of existing tower crane more, and its shortcoming is that signal wire (SW) is long, is not suitable for the dynamic measurement of steel rope.Pin type sensor installation process complexity, and be subjected to the size of pulley degree of wear and influence survey precision, the mechanical type limiting device can only be realized the static measurement of steel rope, and can not realize the dynamic measurement of steel rope.
The utility model content
The purpose of this utility model is to adopt the side-compression sensor for the gravimetry that solves existing tower crane more, and its shortcoming is that signal wire (SW) is long, is not suitable for the dynamic measurement of steel rope.Pin type sensor installation process complexity, and be subjected to the size of pulley degree of wear and influence survey precision, the mechanical type limiting device can only be realized the static measurement of steel rope, and can not realize the problem of the dynamic measurement of steel rope, and then a kind of building tower crane gravimetry device is provided.
Building tower crane of the present utility model comprises with the gravimetry device: pulley, bearing, sheave shaft, pulley bracket, pull pressure sensor and support beam, sheave shaft is fixed on the pulley bracket, bearing is arranged on the interior sheave shaft of pulley bracket, pulley is fixed on the bearing, and pull pressure sensor is fixed between pulley bracket and the support beam.
The utility model has the advantages that: do not change under the situation of crane (tower crane) structure gravimetric value that can the dynamic measurement lifted weight.The utility model is convenient to install, safe and reliable, survey precision is high, even the pulley wearing and tearing do not influence observed reading yet, comformability is strong, applicable to the gravimetry of various tower cranes.
Description of drawings
Fig. 1 is the integral structure scheme drawing that the utility model specific embodiment provides.
Fig. 2 is the C-C cutaway view of Fig. 1.
Fig. 3 is an application state scheme drawing of the present utility model.
Reference numeral 1 pulley among the figure, 2 bearings, 3 sheave shafts, 4 pulley brackets, 5 pull pressure sensor, 6 support beams, 7 first tie bolts, 8 second tie bolts, the 9th, winch, the 10th, steel rope, the 11st, cat head wheel, the 12nd, horizontal guide sheave, the 13rd, dolly, the 14th, weight, the 15th, main control computer, the 16th, operator's compartment, the 17th, signal wire (SW).
The specific embodiment
A kind of building tower crane of the utility model is seen Fig. 1 and Fig. 2 with gravimetry device preferred implementation.Comprise pulley 1, bearing 2, sheave shaft 3, pulley bracket 4, pull pressure sensor 5 and support beam 6, sheave shaft 3 is fixed on the pulley bracket 4, bearing 2 is arranged on the sheave shaft 3 in the pulley bracket 4, pulley 1 is fixed on the bearing 2, and pull pressure sensor 5 is fixed between pulley bracket 4 and the support beam 6.
Further, comprise that also first tie bolt 7 and second tie bolt, 8, the first tie bolts 7 will be connected and fixed between pull pressure sensor 5 and the pulley bracket 4, second tie bolt 8 will be connected and fixed between pull pressure sensor 5 and the support beam 6.
Pulley 1 of the present utility model is a nylon pulley.
The utility model is connected (welding or buckle connect) by support beam with the tower crane main body, make A point or the B point of tower crane steel rope by nylon pulley, behind the steel rope hoisting heavy, with the A point is example, the A point produces the pressure of a D direction, pull pressure sensor can produce compressive deformation, and the variation by the internal strain sheet can measure voltage or current signal, obtains gravimetric value by the main control computer computing.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (2)
1. building tower crane gravimetry device, comprise pulley (1), bearing (2), sheave shaft (3), pulley bracket (4), pull pressure sensor (5) and support beam (6), it is characterized in that: sheave shaft (3) is fixed on the pulley bracket (4), bearing (2) is arranged on the interior sheave shaft (3) of pulley bracket (4), pulley (1) is fixed on the bearing (2), and pull pressure sensor (5) is fixed between pulley bracket (4) and the support beam (6).
2. a kind of building tower crane gravimetry device according to claim 1, it is characterized in that: also comprise first tie bolt (7) and second tie bolt (8), first tie bolt (7) will be connected and fixed between pull pressure sensor (5) and the pulley bracket (4), and second tie bolt (8) will be connected and fixed between pull pressure sensor (5) and the support beam (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202990272U CN201809064U (en) | 2010-08-20 | 2010-08-20 | Gravity measuring device for building crane tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202990272U CN201809064U (en) | 2010-08-20 | 2010-08-20 | Gravity measuring device for building crane tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809064U true CN201809064U (en) | 2011-04-27 |
Family
ID=43892004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202990272U Expired - Fee Related CN201809064U (en) | 2010-08-20 | 2010-08-20 | Gravity measuring device for building crane tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201809064U (en) |
-
2010
- 2010-08-20 CN CN2010202990272U patent/CN201809064U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20120820 |