CN206599380U - Bridge crane weighing system - Google Patents

Abstract

The utility model discloses a kind of bridge crane weighing system, the track moved including dolly and for dolly, the dolly includes wheel, the wheel matches with the track, weighing positions are pinpointed on described track and are provided with weighing device, the weighing device includes the sensor group of the correspondence wheel count, the sensor group includes two weighing sensors, sensor group described in every group of the bottom correspondence of the track is provided with the hanging groove that Open Side Down, the hanging groove is located at the underface of the sensor group, the length of the hanging groove is more than the spacing of two weighing sensors of the sensor group.After adopting the above technical scheme, cancelling the sensor on reel axle bed, eight filling type sensors are installed on the track that monkey is run, by measuring the weight of whole dolly, can obtain and weigh by calculating.Segmented sensors pattern is no longer used, convenient to install using whole rail mounted, precision is high.

Description

Bridge crane weighing system

Technical field

The utility model is related to a kind of bridge crane weighing system.

Background technology

Crane is a kind of hoist article equipment applied to either inside, and its crane capacity enters mainly by weighing sensor Row identification, during overrate, it is impossible to lift by crane.

Existing bridge crane includes dolly and track, and dolly can be in moving on track, and track uses national standard track, processing Afterwards on the crossbeam of bridge crane.As illustrated in figs. 5-7, dolly includes end carriage 1 ', driving dolly movement to the structure of dolly The motor 4 ' that rotates of motor 2 ', two cable drums 3 ' and driving cable drum 3 ', the output shaft of motor 4 ', which passes through, to slow down Device 5 ' is interlocked with cable drum 3 ', and decelerator 5 ' is installed on the top of dolly end carriage 1 '.Cable drum 3 ', which is intertwined and connected, grabs The steel wire rope 11 ' of bucket, the two ends of cable drum 3 ' are installed by bearing 6 ', the bearing block bottom of the end bearing 6 ' of cable drum 3 ' one One pressure sensor 13 ', i.e. every suit lifting mechanism are installed and typically set a pressure sensor 13 ', the root of pressure sensor 13 ' Transmitted according to the pressure signal suffered by bearing 6 ' to controller, just obtain the gravity that the end steel wire rope 11 ' is born.In setting one on dolly Cable drum 8 ', the cable 10 ' that the winding of cable drum 8 ' is connected with grabbing bucket, cable drum 8 ' and one of cable drum 3 ' Interlocked by chain 9 '.

Because crane is especially as rubbish hangs this kind of crane, residing working environment is severe, operation is frequent, and needs pair Daily garbage treatment quantity has an accurately record, and for complete machine, it is higher than general crane technical requirements.And Above-mentioned crane due to each reel only one end bearing block bottom set a pressure sensor, then controller according to The pressure data that one sensor is measured is multiplied by 2 after adding up, and has just obtained the weighing items that its suspender (grab bucket) is hung.But, Reel has deviation in installation process, and can produce micro deformation in rotation process, so as to cause what is wound on each reel Gravity suffered by two steel wire ropes is not consistent, produces departure, causes controller to calculate the rubbish weight of gained in the above described manner Be present larger deviation in the garbage weight that amount and suspender are actually hung, weigh inaccurate.Further, since dolly is often in operation shape Under state, thus the sensor moment of bearing block bottom be under pressure, its long will produce deformation, so as to cause to weigh zero Position drift, further results in the bigger error weighed.

Utility model content

Problem to be solved in the utility model, which is to provide a kind of weighing precision height and pinpoints the bridge crane weighed, weighs System.

In order to solve the above-mentioned technical problem, the utility model is adopted the following technical scheme that：Bridge crane weighing system, bag Dolly and the track moved for dolly are included, the dolly includes wheel, and the wheel matches with the track, described track Upper fixed point weighing positions are provided with weighing device, and the weighing device includes the sensor group of the correspondence wheel count, the biography Sensor group includes two weighing sensors, and the sensor group described in every group of the bottom correspondence of the track is outstanding provided with what Open Side Down Dead slot, the hanging groove is located at the underface of the sensor group, and the length of the hanging groove is more than the two of the sensor group The spacing of individual weighing sensor, the dolly is provided with limit switch.

The weighing sensor is filling type weighing sensor.

There is the mounting hole on Morse taper, the track also there is corresponding Morse to bore at the middle part of the weighing sensor Degree.

The model CL-YB-1/5T of the weighing sensor.

The depth of the hanging groove is 2mm.

After adopting the above technical scheme, cancelling the sensor on reel axle bed, pacify on the track that monkey is run Eight filling type sensors are filled, by measuring the weight of whole dolly, can obtain and weigh by calculating.No longer using segmentation Formula mode sensor, convenient to install using whole rail mounted, precision is high.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model bridge crane weighing system.

Fig. 2 is Fig. 1 A-A sectional view.

Fig. 3 is Fig. 1 B direction views.

Fig. 4 is Fig. 2 C direction views.

Fig. 5 is the structural representation of existing bridge crane.

Fig. 6 is Fig. 4 A ' direction views.

Fig. 7 is Fig. 4 B ' direction views.

Embodiment

As shown in figures 1 and 3, bridge crane include dolly and for dolly move track 5, dolly include motor, Reel 1, bearing block 2, decelerator 3, wheel 4, steel cable 8 and suspension hook 9, wherein, motor, reel 1, bearing block 2 and decelerator 3 into To installing.Motor is fixedly installed on dolly, and its output shaft drives reel 1, reel 1 and motor by decelerator 3 Output shaft is almost parallel, and the other end of reel 1 installs bearing block 2.Two winding drum 1 is between two motor, and steel is wound on reel 1 Rope 8, the lower end connecting shackle 9 of steel cable 8.Four wheels 4 are installed in the lower section of dolly, and four wheels 4 are on track 5 and can edge Track 5 is rolled.

Weighing positions are pinpointed on track and are provided with weighing device, the weighing device includes the sensing of the correspondence wheel count Device group, the sensor group includes two weighing sensors 6, and the sensor group described in every group of the bottom correspondence of the track is provided with The hanging groove 11 that Open Side Down, the hanging groove 11 is located at the underface of the sensor group, and the length of the hanging groove 11 is big In the spacing of two weighing sensors 6 of the sensor group, the dolly is provided with limit switch 10, when triggering limit switch Dolly is parked in fixed point weighing positions when 10.

Four weighing sensors 6 are installed on every track 5, the distance between each two weighing sensor as one weigh away from From section, sensor just corresponds to a wheel.The distance between two sensors are a distance segment, and spacing is 220mm.Vacantly The depth of groove 11 is 2mm so that when mounted, the track in the range of distance segment is in hanging state to track.When in distance segment In the range of, when bearing load, this section of track can deform, and press against sensor and also produce Light deformation.Sensor internal is provided with Foil gauge, according to deflection number, the resistance value of generation is different.So as to measure real load by deformation measurement.Eight biographies The installation site of sensor amounts to four distance segments of weighing, corresponding to four wheels 4 of dolly.

The weighing sensor is filling type weighing sensor.The model CL-YB-1/5T of the weighing sensor.Such as Shown in Fig. 2 and Fig. 4, there is the mounting hole on Morse taper, the track also to have accordingly at the middle part of the weighing sensor Morse taper.

Filling type weighing sensor installation method：When sensor is processed, a Morse cone is gone out in the Surface Machining of sensor Spend structure.Hole in orbit also processes the hole of Morse tapered configuration.Both are installed togather, and end is carried out with bolt It is fixed.Morse taper can ensure, in normal operation, will not automatically exit from, end is fixed with bolt again, it can be ensured that sensing Device will not loosen.

When monkey is moved through distance to a declared goal section (when crane is that rubbish is hung, to burn outside fire door at this Side about 500mm, is positioned by the making contact of limit switch 10), four wheels 4 of dolly be just pressed on four weigh distance segment it On, now weighed, whole dolly deadweight is all born on eight weighing sensors 6 plus load lift heavy, by eight titles The numerical value for retransmitting the collection of sensor 6 is added up, and accurate lift heavy just can be obtained by calculating.

The utility model bridge crane weighing system eliminates the pressure sensing that the bearing block bottom of reel one end is installed Device, the substitute is and eight weighing sensors 6, eight weighing sensors 6 are installed on the track run in monkey Four wheels with dolly are corresponding, and when trolley travelling is to when pinpointing weighing positions, four wheels of dolly just run process On eight weighing sensors 6, in the range of coverage of weighing, multiple data of being weighed in instantaneous 2 seconds, and be averaged, so Just the data of each sensor are achieved, the weight of whole dolly has been measured, has now been weighed, whole dolly deadweight+load Lift heavy all bears on eight weighing sensors 6, then the measured value of eight weighing sensors 6 is added up, and just can take Obtain accurate lift heavy.

Because sensor is in fixed position, dolly simultaneously occasionally runs so far specified location, thus weighing sensor 6 It is not to work regularly, but intermittently works, the pressure deformation amount of its own is minimum, in the absence of zero shift of weighing Phenomenon, further increases the precision weighed.

Claims (6)

1. bridge crane weighing system, including dolly and the track for dolly movement, the dolly include wheel, the wheel Match with the track, it is characterised in that：Weighing positions are pinpointed on described track and are provided with weighing device, the weighing device Include the sensor group of the correspondence wheel count, the sensor group includes two weighing sensors, the bottom of the track Sensor group described in every group of correspondence provided with the hanging groove that Open Side Down, the hanging groove be located at the sensor group just under Side, the length of the hanging groove is more than the spacing of two weighing sensors of the sensor group.

2. bridge crane weighing system according to claim 1, it is characterised in that：The weighing sensor is filling type Weighing sensor.

3. bridge crane weighing system according to claim 2, it is characterised in that：The middle part tool of the weighing sensor There is the mounting hole on Morse taper, the track that also there is corresponding Morse taper.

4. bridge crane weighing system according to claim 2, it is characterised in that：The model of the weighing sensor CL-YB-1/5T。

5. bridge crane weighing system according to claim 1, it is characterised in that：The depth of the hanging groove is 2mm.

6. bridge crane weighing system according to claim 1, it is characterised in that：The dolly is opened provided with spacing Close.