The stacking device

 

(57) Abstract:

Usage: in the field of mechanical engineering. The inventive beam of the undercarriage device is installed elastic plate with pin 4 and is located on the spring that interacts with a forked stop 18 of the housing of the mechanism of movement and deformation of the plate is measured by sensors, such as strain or inductive, electrical signal which is evaluated by the microprocessor. When the output signal magnitude within the acceptable range of values disables power to the motor with simultaneous alarm signal, turning on the brakes and writing to memory stationary computer. To improve the accuracy of the control mechanism of movement is established in addition to the acceleration sensor of the undercarriage. 1 C.p. f-crystals, 3 ill.

The invention relates to the field of engineering, namely for the design of crane-stacker for storage with shelving, in cells which are stored piece goods - products machine building, light and other industries.

Known stacking devices operating automatically or under operator control. Shelving traktowanie amount of storage space, are the most effective form of warehouse equipment.

The closest to the technical nature of the present device is a stacker crane, manufactured Simferopol experienced plant NGOs "Oleautomation" [2] . It contains trolley with columns and placed on a Dolly with swivel wheels mounted with possibility of vertical movement on the columns of the cargo platform, which includes telescopic grips, drivers of truck movement vertical movement of the cargo platform and extension telescopic gripper and fixture for controlling the said mechanisms including a unit job programmes, made in the form of a stationary computer, which is included in the control circuit of these mechanisms using the on-Board controller.

This faucet no load control mechanism of movement, resulting in possible: a) the gathering of crane rail and a significant excess of allowable loads on the details of the mechanism of movement and their destruction due to the ingress of foreign objects between the driving wheels and the rail, and truck hitting on random obstacles; b) stopping the movement of the trolley adania on oil or coolant, for example, containerizable products of machine-building productions. The consequence is a reduction in the reliability of the crane and the lack of efficiency of warehouse.

The aim of the invention is to improve the reliability of the stacking device and improving its operation.

Significant differences of the present invention is that the beam trolleys cantilever elastic plate attached to the both surfaces side of the free end of the pins covered by springs, one ends connected with the respective sides of the plate and the housing of the drive mechanism of movement of truck mounted fork emphasis covering plate from the side of the free end and is connected to the second ends of the mentioned spring, a device to control the driving mechanism equipped with strain gauges plates, for example, inductive or strain, while the controller is implemented with a threshold unit, the input of which is connected to the outputs of the above sensors, and to the output - circuit of the motor control and brake actuator mechanism of movement of the truck.

This is achieved by the fact that n is one of the end pins, covered by springs, one ends connected with the respective sides of the plate and the housing of the drive mechanism of movement of truck mounted fork emphasis covering plate from the side of the free end and is connected to the second ends of the mentioned spring, a device to control the driving mechanism equipped with strain gauges plates, for example, inductive or strain, in this case, the controller is implemented with a threshold unit, the input of which is connected to the outputs of the above sensors, and the output - circuit of the motor control and brake actuator mechanism of movement of the truck. When the output signal is within the acceptable range of values is a power of the electric motor with simultaneous alarm signal, turning on the brakes and write to memory stationary computer.

In Fig. 1 shows a diagram of the stacking device of Fig.2 - the fixing unit gear case relative to the beams of the undercarriage of Fig.3 - section a-a in Fig.2.

The stacking device consists of the undercarriage 1, columns 2 and 3, the lead 4 and led 5 wheels resting on track 6. Columns 2 and 3 are connected to the upper balcony is rolling along the guide 9. Protopriest 10 telescopic grips 11 and 12 and load 13 is driven mounted on the column 3 by the actuator 14 by means of two cargo circuits 15, partially shown in the diagram. Cart 1 has a drive mechanism of movement, which includes a motor 16 connected to the gear 17, the low speed shaft 18 through which the splined connection is connected with the shaft of the leading driving wheels 4, and a control unit 19 with a programmable controller, the communication lines connected to control stationary computer (not shown). The housing 17 has a forked stop 18, which through the springs 19 and 20, mounted on the pin 21, interacts elastic plate 22. The elastic plate 22 by bolts 23 are attached to the bracket 24, which bolts 25 is connected to the chassis beam trolley 1. On grouporiented 10 has a drive 26 telescopic grip 11 and 12.

The stacking device operates as follows. Programmable controller from stationary control computer receives the address of the cell of the rack where you want to take the weight includes the motor 16 of the drive movement and the drive motor 14 of the lifting mechanism. Transport frame 1 is stopped against the desired number of shelves, and the cargo is th is shifted in the desired direction (left or right) included in the cell rack up 5...8 cm and takes on the burden lifts it for another 5...8 cm and takes the load of the cell. Capture moves the load 13 in the middle position, when the load center is located in a vertical plane passing through the track 6. After that included the engine 16 of the mechanism of movement and the drive motor 14 of the lifting mechanism. The carriage 1 is moved to the end of miscellanea passage, and the weight 13 occupies a lower position.

During the movement of the undercarriage 1, the driving torque is transmitted from the motor 16 through a gear 17 on the shaft of the leading driving wheels 4, which rolls on the track 6. On the housing 17 from the pressure of the bearings of the shafts occurs reaction torque tending to rotate the gear 17 and its associated motor 16 around a common axis of rotation of the shaft driving wheel 4 and the output shaft 18 of the gear. This prevents rotation of the elastic plate 22 rigidly connected with transport frame 1 and are in contact through the springs 19 and 20 with a forked stop 18 fixed to the housing 17. Springs 19 and 20 to smooth the ripple of the reactive torque on the gear housing 17 that is associated with the inevitable fluctuations of the PTO is atih the links. The deformation of the plate 22 is measured by sensors, such as strain or inductive, electrical signal which is measured onboard programmable controller, and the latter when the output signal magnitude within the acceptable range of values off the motor 16 from the network, includes brake and alarm recording this event in memory of a stationary ("coastal") control Board.

To improve the accuracy of the load control mechanism of movement you should additionally install the acceleration sensor of the undercarriage. Calculations show that when the movement of the trolley 1 with an acceleration of +0.6 m/s2the overall center of gravity of the gear 17, the electric motor 16 and connecting the clutch / brake (not shown) is removed from the axis of rotation of the shaft driving wheel 4 237 mm Weight, relatively concentrated at this point, is to 85.8 kg developed the inertial force - 51,5 H. The moment of this force during acceleration of the truck 1 is added to the reactive torque on the gearbox housing 17, increasing the deflection plate 22. When braking this distortion does not play a role, as the engine is turned off with the inclusion of the brakes. The acceleration sensor (not shown) sends an electrical signal to kontrollierte stacking device has the advantage, which immediately detected: a) cessation of movement of the truck 1 in the thrashing, i.e., slippage of the leading driving wheel 4 relative to the rail track 6; b) accidental entry of foreign objects between the driving wheels 4 and 5 and the rail 6 or hitting truck 1 on a random obstacle. In both cases, the controller turns off the engine 16 includes a brake and an emergency signal, sends the command to write to memory stationary computer in this case. This allows you to quickly eliminate the cause of the failure of the stacking device, and a periodic analysis of, for example, at the end of the shift, helps to improve the conditions in a particular direction.

As a result, the reliability of the stacking device is increased, downtime and recovery of failures is reduced, the performance of the device increases.

1. The STACKING DEVICE containing the cart is placed on the rails with swivel wheels and columns, installed with the possibility of vertical movement on the columns of the cargo platform, which includes telescopic grips, drivers of truck movement, vertical movement of the cargo platform and wyd unit job programs, designed as a stationary computer, which is included in the control circuit of these mechanisms using the on-Board controller, characterized in that, in order to increase reliability and improve operating conditions, the beam trolleys cantilever elastic plate attached to the both surfaces side of the free end of the pins covered by springs, one ends connected with the respective sides of the plate and the housing of the drive mechanism of movement of truck mounted fork emphasis covering plate from the side of the free end and connected with the second ends of the springs, a device to control the driving mechanism equipped with strain gauges plates, made inductive or strain, while the controller is implemented with a threshold unit, the input of which is connected to the outputs of the above sensors, and the output - circuit of the motor control and brake actuator mechanism of movement of the truck.

2. The device under item 1, characterized in that the device for controlling driving mechanism provided with the acceleration sensor of the truck, one end of which is connected to the input of the controller to adjust the sensor signals of deformation

 

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