CN201201854Y - Electronic scale for gantry crane - Google Patents
Electronic scale for gantry crane Download PDFInfo
- Publication number
- CN201201854Y CN201201854Y CNU2008200658389U CN200820065838U CN201201854Y CN 201201854 Y CN201201854 Y CN 201201854Y CN U2008200658389 U CNU2008200658389 U CN U2008200658389U CN 200820065838 U CN200820065838 U CN 200820065838U CN 201201854 Y CN201201854 Y CN 201201854Y
- Authority
- CN
- China
- Prior art keywords
- fender
- fracture
- pulling force
- force sensor
- pin
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000005303 weighing Methods 0.000 claims description 18
- 238000012360 testing method Methods 0.000 description 3
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
Images
Landscapes
- Control And Safety Of Cranes (AREA)
Abstract
The utility model relates to a weighting device for heavy gantry crane, in particular to an electronic scale for gantry cranes, which is characterized by comprising an upper pin (2), an upper couple (3), a tension sensor (5), a lower couple (6), a lower pin (8) and a digit weight display instrument (11), wherein the upper couple (3) is hinged with the prior steel wire fixing bracket (1) of a crane via the upper pin (2), the lower end of the upper couple (3) is fixedly connected with the upper end of the tension sensor (5), the lower end of the tension sensor (5) is fixedly connected with the upper end of the lower couple (6) which is hinged with a weight steel wire connector (9) via the lower pin (8), the signal output of the tension sensor (5) is connected with the signal input of the digital weight display instrument (11) via a signal line. The electronic scale can display the prior hoisting weight in hoisting, to avoid overload. The electronic scale has simple structure, high safety, low cost, practicality and simple installment.
Description
Technical field
The utility model relates to the weighting apparatus of heavy transfer crane.
Background technology
The heavy transfer crane that is used for the bridge prefabrication field is when the prefabricated components molding, although the weight of known prefabricated components, but prefabricated components and template, and the stiction force that idol is joined between the cast member is to estimate, stiction force is excessive may to cause the crane overload damage, can produce deletrious rebounce to hoisting crane when stiction force is unclamped suddenly.The danger of overload lifting when general gantry crane for general use also has because of the weight weight unknown.
Summary of the invention
The purpose of this utility model is to provide a kind of electronic scales of transfer crane simple in structure, and this electronic scales can demonstrate current hoisting capacity in the lifting process.
To achieve these goals, the technical solution of the utility model is: a kind of electronic scales of transfer crane is characterized in that it comprises upper pin, last catcher, pulling force sensor, following catcher, lower bearing pin, digital weighing display instrument; Fixedly bracket is hinged by upper pin and the original steel rope of hoisting crane for last catcher, captive joint with the upper end of pulling force sensor in the lower end of last catcher, captive joint with the upper end of taking over down in the lower end of pulling force sensor, following catcher is hinged by lower bearing pin and hoist rope adaptor union; The signal output part of pulling force sensor is linked to each other by the signal input part of signal wire (SW) with the digital weighing display instrument.
The left side of described pulling force sensor is provided with left side fracture fender, the right side of pulling force sensor is provided with right fracture fender, the upper end of left side fracture fender, right fracture fender is provided with the upper pin hole, and fixedly bracket is hinged by upper pin and the original steel rope of hoisting crane for left side fracture fender, right fracture fender; The bottom of left side fracture fender, right fracture fender is equipped with slotted hole; the width of slotted hole and the equal diameters of lower bearing pin; the length of slotted hole is 1.2～1.8 times of diameter of lower bearing pin; lower bearing pin passes the slotted hole of right fracture fender, fracture fender bottom, a left side, and lower bearing pin is positioned at the medium position of the slotted hole of right fracture fender, fracture fender bottom, a left side.
The utility model is at pulling force sensor of hoisting rope terminals that hoist (hoist rope adaptor union) and winch junction (the original steel rope of hoisting crane is bracket fixedly) polyphone of transfer crane; this pulling force sensor is connected with the digital weighing display instrument; in the lifting process, can demonstrate current hoisting capacity; prevent from the to overload generation of lifting danger has overload protective function.Adopt said structure, it is simple in structure, economical and practical and be convenient to install (adopt upper pin, lower bearing pin, be convenient to install).Adopt left side fracture fender, right fracture fender, have the good characteristics of safety.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a circuit diagram of the present utility model;
Among the figure: the original steel rope of 1-hoisting crane is bracket fixedly, 2-upper pin, the last catcher of 3-; the right fracture of 4-fender, the 5-pulling force sensor, 6-is catcher down; the 7-slotted hole, 8-lower bearing pin, 9-hoist rope adaptor union; 10-left side fracture fender; 11-digital weighing display instrument (or be called: the weighing instrument of numeric display), 12-buzzer phone, 13-intermediate relay; the hand-operated forced cancel switch of 14-, the 15-constant voltage power suspply.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of electronic scales of transfer crane, it comprise upper pin 2, on take over 3, pulling force sensor 5, take over 6 down, lower bearing pin 8, digital weighing display instrument 11, buzzer phone 12, intermediate relay 13, hand-operated forced cancel switch 14, constant voltage power suspply 15; Last catcher 3 by upper pin 2 and the original steel rope of hoisting crane fixedly bracket 1 hinged (on take over 3 and be provided with the upper pin hole, steel rope fixedly bracket is provided with pin shaft hole), captive joint with the upper end of pulling force sensor 5 in the lower end of last catcher 3, captive joint with the upper end of taking over 6 down in the lower end of pulling force sensor 5, under take over 6 by lower bearing pin 8 and hoist rope adaptor union 9 hinged (catcher 6 is provided with the downside pin axis hole down, and the hoist rope adaptor union is provided with pin shaft hole); The signal output part of pulling force sensor 5 is linked to each other by the signal input part of signal wire (SW) with digital weighing display instrument 11.
The left side of described pulling force sensor 5 is provided with left side fracture fender 10, the right side of pulling force sensor 5 is provided with right fracture fender 4, the upper end of left side fracture fender 10, right fracture fender 4 is provided with upper pin hole (circular port), and fixedly bracket 1 is hinged with the original steel rope of hoisting crane by upper pin 2 for left side fracture fender 10, right fracture fender 4; The bottom of left side fracture fender 10, right fracture fender 4 is equipped with slotted hole 7; the equal diameters of the width of slotted hole 7 and lower bearing pin 8; the length of slotted hole 7 is 1.2～1.8 times of diameter of lower bearing pin 8; lower bearing pin 8 passes the slotted hole of right fracture fender 4, fracture fender 10 bottoms, a left side, and lower bearing pin 8 is positioned at the medium position (lower bearing pin 8 can slide up and down at slotted hole) of the slotted hole of right fracture fender 4, fracture fender 10 bottoms, a left side.
Left side fracture fender 10, right fracture fender 4 are steel plate.The bottom of last catcher 3 is a screw rod, and the upper end of pulling force sensor 5 is a nut, and the upper end of following catcher 6 is a screw rod, and the lower end of pulling force sensor 5 is a nut; Catcher 3 or following catcher 6 screw rods make lower bearing pin 8 be positioned at the medium position of slotted hole in the extension elongation of pulling force sensor 5 in the adjustment.The effect of left side fracture fender 10, right side fracture fender 4 is that the formal matter event takes place to weigh down when preventing pulling force sensor 5 fractures; pulling force sensor 5 is when normal operation; left side fracture fender 10, right fracture fender 4 are all inoperative; when pulling force sensor 5 fracture damage, the spacing accident that can not cause weight to fall of left side fracture fender 10, right fracture fender 4 is arranged.
First of the external output of described digital weighing display instrument 11 is connected with buzzer phone 12, and is adjusted into 90% of hoisting crane rated load.Second coil with intermediate relay 13 of the external output of described digital weighing display instrument 11 is connected, and adjusts to 100% of hoisting crane rated load; The contact of intermediate relay 13 is a normally closed contact, and the lifting interlocking circuit of the contact of intermediate relay 13 and hoisting crane is contacted, and can cut off the lifting control circuit of hoisting crane.Hand-operated forced cancel switch 14 with the contact of intermediate relay 13 open contact in parallel.The power input of digital weighing display instrument 11 links to each other with constant voltage power suspply 15.
Digital weighing display instrument 11 has and pulling force sensor 5 supporting use Intelligent Calibration and memory functions; And can directly show calibrated weight and two output control output points that are provided with arbitrarily by numeral.
The rated load of pulling force sensor 5 should be more than or equal to 1.25 times of hoist rope list rope tension (biggest lifting capacity of hoisting crane be 1.25 times of steel rope list rope maximum pull divided by the multiplying power of steel rope wherein); If the on-the-spot standard test weight that is difficult to tens of tons of weights is demarcated this electronic scales, can before installing, pulling force sensor 5 and digital weighing display instrument 11 can on universal testing machine, not demarcate by the maximum single rope tension by steel rope.Specific practice is as follows: the two ends at pulling force sensor 5 connect rod iron respectively, the chuck of test machine is clamped this rod iron, connect digital weighting display instrument 11 according to the circuit on hoisting crane such as Fig. 2, the bonded assembly cable should be a same cable will installing on hoisting crane.Digital weighing display instrument 11 is located at the adjustment state, earlier instrument is shown zero setting, and then allow experimental engine apply pulling force, instrument is noted maximum rated load when the pulling force indication reaches maximum single rope tension.After digital weighing display instrument 11 is transferred to mode of operation, on experimental engine, load gradually, can check and investigate the precision of electronic scales and the accuracy of output control.
Claims (4)
1. the electronic scales of a transfer crane is characterized in that it comprises upper pin (2), goes up catcher (3), pulling force sensor (5), takes over (6), lower bearing pin (8), digital weighing display instrument (11) down; Fixedly bracket (1) is hinged with the original steel rope of hoisting crane by upper pin (2) for last catcher (3), captive joint with the upper end of pulling force sensor (5) in the lower end of last catcher (3), captive joint with the upper end of taking over (6) down in the lower end of pulling force sensor (5), following catcher (6) is hinged by lower bearing pin (8) and hoist rope adaptor union (9); The signal output part of pulling force sensor (5) is linked to each other by the signal input part of signal wire (SW) with digital weighing display instrument (11).
2. the electronic scales of a kind of transfer crane according to claim 1, it is characterized in that: the left side of described pulling force sensor (5) is provided with left side fracture fender (10), the right side of pulling force sensor (5) is provided with right fracture fender (4), the upper end of left side fracture fender (10), right fracture fender (4) is provided with the upper pin hole, and left side fracture fender (10), fixedly bracket (1) is hinged with the original steel rope of hoisting crane by upper pin (2) for right fracture fender (4); The bottom of left side fracture fender (10), right fracture fender (4) is equipped with slotted hole (7); the equal diameters of the width of slotted hole (7) and lower bearing pin (8); the length of slotted hole (7) is 1.2～1.8 times of diameter of lower bearing pin (8); lower bearing pin (8) passes the slotted hole of right fracture fender (4), fracture fender (10) bottom, a left side, and lower bearing pin (8) is positioned at the medium position of the slotted hole of right fracture fender (4), fracture fender (10) bottom, a left side.
3. the electronic scales of a kind of transfer crane according to claim 1 is characterized in that: first of the external output of described digital weighing display instrument (11) is connected with buzzer phone (12).
4. the electronic scales of a kind of transfer crane according to claim 1, it is characterized in that: second coil with intermediate relay (13) of the external output of described digital weighing display instrument (11) is connected, the contact of intermediate relay (13) is a normally closed contact, the contact of intermediate relay (13) and the lifting interlocking circuit of hoisting crane polyphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200658389U CN201201854Y (en) | 2008-03-05 | 2008-03-05 | Electronic scale for gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200658389U CN201201854Y (en) | 2008-03-05 | 2008-03-05 | Electronic scale for gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201201854Y true CN201201854Y (en) | 2009-03-04 |
Family
ID=40424165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200658389U Expired - Fee Related CN201201854Y (en) | 2008-03-05 | 2008-03-05 | Electronic scale for gantry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201201854Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398968A (en) * | 2015-11-20 | 2016-03-16 | 武汉船用机械有限责任公司 | Crane loading moment sensor protection device |
| CN106219411A (en) * | 2016-07-26 | 2016-12-14 | 武汉船用机械有限责任公司 | A kind of lifting rope that is provided with fixes the arm of end connection device |
| CN106803657A (en) * | 2015-11-26 | 2017-06-06 | 江苏天南电力器材有限公司 | One kind has monitoring function strain clamp |
-
2008
- 2008-03-05 CN CNU2008200658389U patent/CN201201854Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105398968A (en) * | 2015-11-20 | 2016-03-16 | 武汉船用机械有限责任公司 | Crane loading moment sensor protection device |
| CN106803657A (en) * | 2015-11-26 | 2017-06-06 | 江苏天南电力器材有限公司 | One kind has monitoring function strain clamp |
| CN106219411A (en) * | 2016-07-26 | 2016-12-14 | 武汉船用机械有限责任公司 | A kind of lifting rope that is provided with fixes the arm of end connection device |
| CN106219411B (en) * | 2016-07-26 | 2018-02-09 | 武汉船用机械有限责任公司 | A kind of arm that end connection device is fixed provided with lifting rope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030102170A1 (en) | Standard attachment fittings for wire rope and chain enhanced to also perform load weighing functions | |
| CN201201854Y (en) | Electronic scale for gantry crane | |
| CN102745566A (en) | Elevator balance coefficient no-load dynamic detector and method for detecting elevator balance coefficient | |
| CN202880777U (en) | Fork truck weighing device with offset load function | |
| CN201694705U (en) | Construction hoist anti-overload and weighing protector | |
| CN102866009A (en) | Intelligent rope breaking tester for safety lock | |
| CN103318732A (en) | Rope detection device and rope detection method both for elevators | |
| CN201626777U (en) | Comprehensive safety protection device of hoisting equipment | |
| CN105417420A (en) | Torque limiting device of electric anchoring and mooring machine | |
| CN202687680U (en) | No-load dynamic detector for elevator equilibrium coefficient | |
| CN202393534U (en) | Tension sensor | |
| CN209940222U (en) | An elevator car weighing system | |
| CN201121121Y (en) | Weighing apparatus of fork truck | |
| CN102530674B (en) | Calibration method for overload protector on lifter | |
| CN107686067A (en) | A kind of single rope hoist wire rope tension detection means | |
| CN203382394U (en) | Rotating pin measuring and weighing sensor device for container spreader | |
| CN202599648U (en) | Device capable of detecting whether elevator internal contracting brake is contracted and detecting elevator equilibrium coefficient | |
| CN102145858A (en) | Chain lifting system weighing and alarming method and chain lifting system weighing and alarming device | |
| CN201647768U (en) | Combined device with weighing rope head of elevator car | |
| CN102020200A (en) | Device for hoisting upper pulley by adle crane | |
| CN205472392U (en) | Electronic anchor windlass moment limiting device | |
| RU48183U1 (en) | LOAD CRANE LOAD LIMITER | |
| RU96366U1 (en) | LOAD LOAD LIMITER | |
| CN101439826A (en) | Cable crane cable tension test system | |
| CN202836950U (en) | Safety lock breaking rope intelligent test instrument |
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: CHINA FIRST METALLURGICAL CONSTRUCTION GROUP CORPO Free format text: FORMER NAME: CHINA FIRST METALLURGICAL CONSTRUCTION CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 430081 Wuhan Industrial Zone, Qingshan District, Hubei, No. 3 Patentee after: China First Metallurgical Group Co., Ltd. Address before: 430081 Wuhan Industrial Zone, Qingshan District, Hubei, No. 3 Patentee before: China First Metallurgical Construction Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20150305 |
|
| EXPY | Termination of patent right or utility model |