CN201458586U

CN201458586U - Novel crane

Info

Publication number: CN201458586U
Application number: CN2009201235649U
Authority: CN
Inventors: 韦少庚; 陈平强; 余凌
Original assignee: ZHEJIANG SAINUO LIFTING MACHINERY CO Ltd
Current assignee: ZHEJIANG SAINUO LIFTING MACHINERY CO Ltd
Priority date: 2009-07-02
Filing date: 2009-07-02
Publication date: 2010-05-12
Anticipated expiration: 2019-07-02

Abstract

The utility model relates to a novel crane, which comprises a trolley and a track. The trolley consists of an electromotor, a speed reducer, a reel, a bearing block, a steel cable, a lifting hook and wheels, wherein an output shaft of the electromotor is linked with the reel via the speed reducer, the bearing block is installed on the other end of the reel, and the lower end of the steel cable wound around by the reel is connected to the lifting hook. The wheels arranged on the lower portion of the trolley are positioned on the track in a rolling manner; when the trolley moves to a fixed point for weighing, the wheels of the trolley press on a sensor installed on the track. By means of installation of the pressure sensor corresponding to the wheels of the trolley on the track, when the trolley moves to the weighing position, the wheels of the trolley press the sensor so that the trolley is weighed by the sensor with high weighing precision. Additionally, only when being at the fixed point position where the sensor is installed, the sensor is under pressure, thereby deformation of the sensor is extremely small and zero drift is avoided.

Description

A kind of novel hoisting crane

Technical field

The utility model belongs to hoisting crane manufacturing technology field, relates in particular to the novel hoisting crane that a kind of weighing precision is high and fixed point is weighed.

Background technology

Hoisting crane is a kind of workshop in-to-in lifting object equipment that is applied to, and its crane capacity is mainly discerned by LOAD CELLS, during overrate, can not lift by crane.

Existing hoisting crane comprises dolly and track, dolly can move on track, the structure of dolly is shown in Fig. 4-5, the motor 4 ' that the motor 2 ' that comprise dolly end carriage 1 ', driving trolley move, two cable drums 3 ' and driving cable drum 3 ' rotate, the output shaft of motor 4 ' is by retarder 5 ' and cable drum 3 ' interlock, and retarder 5 ' is installed on the top of dolly end carriage 1 '.The steel rope 11 ' that cable drum 3 ' is intertwined and connected and grabs bucket, bearing 6 ' is installed at the two ends of cable drum 3 ', a pressure sensor 13 ' is installed in the bearing seat bottom of cable drum 3 ' one side bearing 6 ', be that every suit lifting mechanism is generally established a pressure sensor 13 ', pressure sensor 13 ' transfers to controller according to bearing 6 ' suffered pressure signal, just obtains the gravity that this end steel rope 11 ' bears.Establish a cable drum 8 ' on dolly, cable drum 8 ' twines the cable 10 ' that links to each other with grab bucket, and cable drum 8 ' links by chain 9 ' with one of them cable drum 3 '.

Because hoisting crane hangs this class hoisting crane as rubbish especially, residing work under bad environment, operation are frequent, and a record comparatively accurately need be arranged the garbage treatment quantity of every day, and for complete machine, it is than general hoisting crane technical requirements height.And above-mentioned hoisting crane is because each reel only is provided with a pressure sensor in the bottom of one side bearing seat, multiply by 2 after the pressure data that records according to a sensor of controller adds up then, just obtained the object weight that its suspender (grab bucket) is hung.But, reel has deviation in installation process, and in rotation process, can produce micro-deformation, thereby cause the suffered gravity of two steel ropes twining on each reel and inconsistent, produce departure, cause controller to calculate the rubbish weight of gained in the above described manner and rubbish weight that suspender reality is hung exists bigger deviation, the inaccuracy of weighing.In addition, because dolly often is under the running state, thereby the sensor of bearing seat bottom is under the pressure constantly, and of a specified duration its just can produce deformation, thereby causes the zero shift of weighing, and further causes the error of weighing bigger than normal.

Summary of the invention

The utility model provides a kind of novel hoisting crane, and it has improved the accuracy rate of weighing, and does not have the phenomenon of zero shift.

For achieving the above object, technical solution adopted in the utility model is as follows: a kind of novel hoisting crane, comprise dolly and the track that moves for dolly, dolly comprises electrical motor, retarder, reel, bearing seat, steel cable, suspension hook and wheel, the output shaft of electrical motor is by retarder and reel interlock, the other end installation shaft bearing of reel, reel twines steel cable, the lower end connecting shackle of steel cable; The dolly bottom is provided with wheel, and the cartwheel roll dynamic formula is located on track, sensor installation on the track, and when dolly moved to the fixed point weighing positions, the wheel of dolly just in time was pressed on the sensor.

Described novel hoisting crane, wheel are established four altogether, and described sensor is established four altogether, and four sensors are corresponding with four wheels.

Described novel hoisting crane, electrical motor, reel, bearing seat and retarder mounted in pairs.

As everyone knows, hoisting crane need be exported demonstration to hoisting capacity, has necessarily required accurate load weight.Hoisting crane of the present utility model has been cancelled the pressure sensor of the bearing seat bottom installation of reel one end, the substitute is four pressure sensors are installed on the track of monkey operation, these four sensors are corresponding with four wheels of dolly, when trolley travelling during to rubbish fire door (this place promptly be fixed point weighing positions), four wheels of dolly just in time are pressed on four sensors, so just, the data of each sensor have been obtained, recorded the weight of whole dolly, again through calculating, just can claim weight, its weighing precision height.Because sensor is in fixed position, have only herein that sensor just is under the pressure again, thereby the deformation quantity of himself is minimum, does not have the phenomenon of zero shift.

Description of drawings

Fig. 1 is the structural representation of the utility model hoisting crane.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is that the B of Fig. 1 is to view.

Fig. 4 is the structural representation of existing lifting.

Fig. 5 is that the A ' of Fig. 4 is to view.

Fig. 6 is that the B ' of Fig. 4 is to view.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is elaborated.

As Figure 1-3, hoisting crane comprises dolly and the track 5 that moves for dolly.Dolly comprises electrical motor 7, reel 1, bearing seat 2, retarder 3, wheel 4, steel cable 8, suspension hook 9, electrical motor 7, reel 1, bearing seat 2 and retarder 3 mounted in pairs.Electrical motor 7 is fixedly installed on the dolly, its output shaft and retarder 3 interlocks, and the output of retarder 3 and reel 1 interlock, reel 1 roughly parallels with the output shaft of electrical motor 7, the other end installation shaft bearing 2 of reel 1.Two winding drum 1 is between two electrical motors 7, and reel 1 twines steel cable 8, the lower end connecting shackle 9 of steel cable 8.Below 4, four wheels 4 of four wheels of installation of dolly are on the track 5 and can roll along track 5.Four wheels 4 of the installation site of 6, four sensors 6 of four sensors corresponding to dolly are installed on the track 5.When monkey moves to assigned address (when hoisting crane is that rubbish is when hanging, this place is for burning fire door), four wheels 4 of dolly just in time are pressed on four sensors 6, weigh this moment, whole dolly deadweight adds that the load lift heavy all bears on four sensors 6, the numerical value that four sensors 6 are gathered adds up, and just can obtain lift heavy accurately by calculating.By being installed, four sensors 6 come one-point measurement on trolley travelling track 5, because of dolly is not a frequent operation assigned address so far, thereby four sensors 6 neither be worked regularly, but intermittently work, the pressure deformation amount of himself is minimum, the phenomenon that does not have the zero shift of weighing has further improved the precision of weighing.

Claims

1. novel hoisting crane, comprise dolly and the track that moves for dolly, dolly comprises electrical motor, retarder, reel, bearing seat, steel cable, suspension hook and wheel, the output shaft of electrical motor is by retarder and reel interlock, the other end installation shaft bearing of reel, reel twines steel cable, the lower end connecting shackle of steel cable; The dolly bottom is provided with wheel, and the cartwheel roll dynamic formula is located on track, it is characterized in that: sensor installation on the described track, when dolly moved to the fixed point weighing positions, the wheel of dolly just in time was pressed on the sensor.

2. novel hoisting crane according to claim 1 is characterized in that: described wheel is established four altogether, and described sensor is established four altogether, and four sensors are corresponding with four wheels.

3. novel hoisting crane according to claim 1 is characterized in that: described electrical motor, reel, bearing seat and retarder mounted in pairs.