KR20100134159A - Transporting apparatus having load cells - Google Patents

Abstract

PURPOSE: A transport apparatus having a load cell is provided to stop the operation or return an object to the original position when the load of the object lifted by the apparatus is over the set value. CONSTITUTION: A transport apparatus comprises a driving unit(300), a lifting unit(500), and a load cell unit(100). The driving unit is installed on a rail installed in a building or vertical structure and moves along the rail. The lifting unit comprises a hook for raising an object. The load cell unit is connected between the bottom of the driving unit and the top of the lifting unit and measures the load of the object hanging on the hook of the lifting unit to create load data. The driving unit comprises a first coupling hole(310) and a second coupling hole(330) which are formed on the bottom of the driving unit and coupled with the load cell unit. The load cell unit comprises a load cell which creates load data, a first rotating member which is formed in a cylindrical shape on the top of the load cell, and a second rotating member which is formed on the bottom of the load cell.

Description

Transporting apparatus having load cells

The present invention relates to a load cell, and more particularly, in a conveying device including a load cell, when the load is greater than a threshold value, the operation of the conveying device is stopped or repositioned, thereby causing damage to the machine due to the load applied to the conveying device. It relates to a conveying device having a load cell for preventing.

Commonly used load sensors are largely classified into a load cell method and a magnetic balance method.

The load cell method is a method of measuring the load using the strain that the material is deformed when a force is applied to the material. In other words, when the material is deformed, the load is measured by measuring the change in voltage through the strain gauge. The load cell method can measure loads from as little as kg to as large as ton.

However, the measurable range is different depending on the material and shape of the load cell, so that the user has to provide a load sensor that is various load cells according to the load range to be measured. For this reason, in the case of a weight body that is out of the load range when the load is measured using the load cell, there is an inconvenience in that an appropriate load cell must be mounted by guessing the load range of the weight body to be measured.

In addition, in a conveying device such as a hoist, in the past, a separate weighing sensor is mounted by an internal design, and thus there is a problem of space utilization and troublesome parts replacement.

Accordingly, in a device having a load cell, a single load cell is used to automatically carry a weight body up to a predetermined load, and the weighing sensor is externally designed, thereby making it easy to replace the spatial aspect of the apparatus and the weighing sensor. There is a need for technology development to provide a solution.

The technical problem of the present invention devised to improve the above problems is an object of the present invention to provide a transport device having a load cell for providing the convenience of parts replacement by designing the load cell for the load measurement to the outside.

According to an embodiment of the present invention, when the weight of the weight is a predetermined threshold, the load cell for minimizing damage to the machine due to the load applied by stopping the operation of the conveying device or lifting the object in place in place; It is an object to provide a conveying device.

In addition, according to an embodiment of the present invention, an object of the present invention is to provide a conveying apparatus having a load cell for more accurately measuring the load of the weight by minimizing the restraining force acting on the load cell.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, a transport apparatus having a load cell is provided on a rail installed in a building or a vertical structure, and traveling means moves on the rail; Elevating means including a hook for elevating a heavy object; And a load cell device connected between a lower end of the traveling means and an upper end of the elevating means, the load cell device generating load data by measuring a load of a heavy object caught by a hook of the elevating means; It includes.

The driving means may include a first coupling hole and a second coupling hole at its lower end for coupling with the load cell device.

The load cell device, the load cell for generating the load data; A first rotating member formed at an upper end of the load cell and having a cylindrical shape having an opening therein, and providing fluidity about an x axis which is an axis in the opening direction; And a second rotating member formed at a lower end of the load cell and having first and second bolts formed at both ends in a y axis direction perpendicular to the x axis of the first rotating member. It includes, wherein the opening of the first rotating member is located in the middle of the first coupling hole and the second coupling hole may be fastened by a fixing bar.

The elevating means may include a third coupling hole and a fourth coupling hole respectively coupled to the first bolt and the second bolt of the load cell device.

The conveying device having the load cell may include a first nut coupled to the first coupling hole and coupled to the third coupling hole; And a second nut coupled to the fourth coupling hole and fastened to the second bolt. It may further include.

The load cell apparatus may include a transmission and reception device for transmitting the load data measured by the load cell to the lifting means through wired or wireless communication; It may further include.

The driving means includes a transceiver for performing data transmission and reception with the transceiver; A storage unit for storing load data corresponding to a preset threshold; A driving unit connected to the hook to drive the hook; And a control unit which controls the transceiver to receive the measured load data, and controls the driving unit to stop or return the operation of the hook when the load data is greater than or equal to the load data corresponding to the threshold value. It may include.

Load cell device according to an embodiment of the present invention, the load cell for measuring the load to generate the load data; A first rotating member formed at one end of the load cell and formed into a cylindrical shape having an opening therein, and providing fluidity about an x axis which is an axis of the opened direction; And a second rotating member formed at the other end of the load cell and including first and second bolts formed at both ends in the y axis direction perpendicular to the x axis of the first rotating member. It includes.

The load cell device may include a first connection member formed of an elastic material between the first rotation member and the load cell; And a second connecting member formed of an elastic material between the second rotating member and the load cell. It may further include.

The load cell apparatus may include a transceiver configured to transmit the load data measured by the load cell to the outside through a wired or wireless communication; It may further include.

The conveying device having a load cell according to the present invention designs the load cell for load measurement to the outside to provide convenience of component replacement.

In addition, according to the present invention, when the weight of the weight is more than a predetermined predetermined position of the object to stop or lift the operation of the lifting device in place provides an effect that can minimize the damage to the machine due to the load applied to .

In addition, the present invention provides the effect of more accurately measuring the weight of the weight by minimizing the restraining force acting on the load cell.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted when it is deemed that they may unnecessarily obscure the subject matter of the present invention.

In the present specification, when one component 'transmits' data or a signal to another component, the component may directly transmit the data or signal to another component, and through at least one other component. This means that data or signals can be transmitted to other components.

1 is a view showing a load cell device 100 according to an embodiment of the present invention. Referring to FIG. 1, the load cell device 100 may include a first rotating member 110, a load cell 150, and a second rotating member 190.

The first rotating member 110 is formed in a cylindrical shape with an opening inside to provide fluidity about the x-axis on the drawing which is an axis in the opening direction. The first rotating member 110 is connected to the first connecting member 130 formed at one end of the load cell 150. As shown in the drawing, the first rotating member 110 is coupled to the upper end of the load cell 150 through the first connecting member 130.

The first connection member 130 is formed between the first rotating member 110 and the load cell 150. That is, the first connection member 130 connects the first rotation member 110 to the load cell 150 and may be formed of an elastic material. As shown in the drawing, the first connection member 130 is formed in a rectangular parallelepiped shape whose length is shorter than that of the load cell 150. On the other hand, the shape of the first connecting member 130 is not limited to the rectangular parallelepiped, it can be modified by those skilled in the art.

The load cell 150 is formed between the first connecting member 130 and the second rotating member 170, and can measure the load of the weight caught on the hook 501 of the elevating means 500 to be described later connected thereto. It is a sensor. The load cell 150 is formed in a rectangular parallelepiped shape, but is not limited thereto. The load cell 150 of the present invention may be used in any one of a magnetic method, a capacitance, and a strain gauge method, and may output a load of a weight body by an electrical resistance or a voltage change. The load cell 150 may further include a transceiver 151 that performs data transmission and reception with an external device. The transceiver 151 may perform wired or wireless communication with the transceiver 520 of the elevating means 500 which will be described later. Here, the wireless communication may transmit load data to the control device 280 through a short range wireless communication (PAN) such as Bluetooth, ZigBee, Ultra-Wideband (UWB), infrared light, or the like.

The second connection member 170 connects the second rotation member 190 and the load cell 150 and is formed of an elastic material. The second connection member 170 is formed in a symmetrical shape with respect to the first connection member 130 and the load cell 150.

The second rotating member 190 has a rectangular parallelepiped shape extending in a direction orthogonal to the x axis, which is an axis of the opening direction of the first rotating member 110, and the first rotating member 500 is coupled to the lifting means 500 at both ends. And a bolt 191 and a second bolt 193. By such a shape, the second rotating member 190 provides fluidity about the y axis in the drawing. The second rotating member 190 is connected to the second connecting member 170 formed at the other end of the load cell 150. As shown in the drawing, the second rotating member 190 is coupled to the lower end of the load cell 150 through the second connecting member 170. The first bolt 191 and the second bolt 193 are formed of a screw type, two coupling holes (third coupling hole 510, fourth coupling hole 530 symmetrically formed in the lifting means 500 to be described later) Each through)) can be combined with the lifting means 500.

Meanwhile, the load cell device 100 may further include a first nut 195 and a second nut 197. The first nut 195 and the second nut 197 have the same screw pattern as the first bolt 191 and the second bolt 193 to couple with the first bolt 191 and the second bolt 193. It is formed around the groove and is fastened to the first bolt 191 and the second bolt 193 passing through each coupling hole (third coupling hole 510, fourth coupling hole 530).

In the above, the first rotating member 110 and the first connecting member 130 of the LORcell device 100. Although the load cell 150, the second connection member 170, and the second rotation member 190 have been separated and described, in another embodiment, the components 110 to 190 may be manufactured and used in one piece.

2 is a view showing a state in which the load cell device 100 of FIG. 1 is attached to a transport apparatus according to an embodiment of the present invention. 3 is a view illustrating a state in which the load cell device 100 of FIG. 2 is connected according to an embodiment of the present invention. Hereinafter, a detailed structure will be described with reference to FIGS. 1 to 3.

The load cell device 100 is a structure that is connected between the lower end of the driving means 300 and the upper end of the elevating means 500, the load by measuring the load of the heavy lifting on the hook 501 of the elevating means 500 The data is transmitted to the lifting means 500. The load cell device 100 performs a dual role of generating load data while at the same time replacing a connection part such as an existing connection bracket.

The traveling means 300 is installed on a rail installed at approximately a ceiling portion of a building or a vertical structure and moves on a rail by rail. On the other hand, the traveling means 300 includes a first coupling hole 310, the second coupling hole 330 for coupling with the load cell device 100 at the bottom. As shown. The first coupling hole 310 and the second coupling hole 330 are formed to be horizontally coupled to the x-axis which is an axis in the open direction of the first rotating member 110 of the load cell device 100. In this manner, the fixing bar 350 is fastened through the first coupling hole 310, the opening of the first rotating member 110, and the second coupling hole 330.

On the other hand, if the first rotating member 110 assumes the fixing bar 350 as the x-axis, it performs a rotational movement around the x-axis to provide fluidity to the load cell device 100.

The elevating means 500 is coupled to the bottom of the traveling means 300 via the load cell device 100 to elevate the heavy object fixed to the hook 501. The lifting means 500 includes a third coupling hole 510 and a fourth coupling hole 530.

The third coupling hole 510 and the fourth coupling hole 530 are movable to which the first bolt 191 and the second bolt 193 of the second rotating member 190 of the load cell device 100 may be coupled, respectively. Provide passage.

The first nut 195 and the second nut 197 each include a first bolt 191 and a second bolt 193 passing through each coupling hole (the third coupling hole 510 and the fourth coupling hole 530). ) Respectively.

On the other hand, assuming that the direction in which the first bolt 191 and the second bolt 193 are formed on the y-axis, the lifting means 500 may be provided with a fluid that can rotate around the y-axis.

4 is a block diagram showing the internal configuration of the lifting means 500 according to an embodiment of the present invention. 1 to 4, the lifting means 500 includes a transceiver 540, an input unit 550, a controller 560, an output unit 570, a driver 580, and a storage unit 590. can do.

The transceiver 540 transmits and receives data with the transceiver 151 of the load cell apparatus 100. That is, the transceiver 540 receives the load data from the transceiver 151 through wired or wireless communication.

The input unit 550 may be formed of one of a keypad and a touch pad including a plurality of input keys. In particular, the input unit 550 may be configured to set the maximum load data (threshold value) that the lifting means 500 can lift. It may include an input key. When the user sets the load data through the input key, the set load data is transmitted to the controller 560.

The controller 560 controls the input unit 550 to receive load data from the transceiver 151 of the load cell device 100, and determines whether the received load data is a load of a predetermined threshold or more. The control unit 560 is a drive unit connected to the lifting means 500 to lower or stop the operation of the weight placed on the lifting means 500 when the load is equal to or greater than the predetermined threshold or input to the input unit 550 as a result of the determination ( 580). On the other hand, the controller 560 excludes the load of the load cell device 100, the traveling means 300, and the lifting means 500 from the load data received from the load cell device 100, thereby loading the heavy object caught on the hook 501. Only data can be calculated. To this end, the storage unit 590 to be described later may store in advance load data of the load cell device 100, the traveling means 300, and the lifting means 500.

In general, the output unit 570 receives and displays information and service information input by a user from the control unit 560. That is, the output unit 570 may display a character corresponding to an input key input through the input unit 550, and a corresponding multimedia module when the multimedia module is executed. The output unit 570 may receive and display data stored in the storage unit 590 from the storage unit 590 under the control of the controller 560.

In addition, the output unit 570 displays data received from the transceiver 151 of the load cell device 100 under the control of the controller 560. That is, the output unit 570 receives and displays load data.

The storage unit 590 stores preset load data for controlling by the control unit 560. On the other hand, the storage unit 590 is a non-volatile memory (NVM), even if the power is not supplied to maintain the stored data and is not deleted, flash memory (Flash Memory), MRAM (Magnetic Random Access Memory), Phase-change random access memory (PRAM), ferroelectric RAM (FRAM) and the like. On the other hand, the above-described conveying device has been described with reference to the illustrated hoist, it is apparent to those skilled in the art that it can be transformed into a conveying device having a traveling means 300 and the lifting means 500.

Although the contents of the present invention have been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art may realize various modifications and other equivalent embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

By the conveying device having a load cell of the present invention, the load cell for load measurement is designed externally to provide convenience of component replacement, and the operation of the conveying device is stopped or stopped when the weight of the weight to be conveyed is greater than or equal to a predetermined threshold. It is possible to compensate for the disadvantages of the existing transportation device by minimizing damage to the machine due to the load applied by placing the lifted object in place.

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.

1 is a view showing a load cell device according to an embodiment of the present invention.

2 is a view showing a state in which the load cell device of FIG. 2 is attached to a transport apparatus according to an embodiment of the present invention.

3 is a diagram illustrating a state in which the load cell device of FIG. 3 is connected according to an exemplary embodiment of the present invention.

Figure 4 is a block diagram showing the configuration of the lifting means according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: load cell device 110: first rotating member

150: load cell 190: second rotating member

300: driving means 310: first coupling hole

330: second coupling hole 500: lifting means

501: hook 510: third coupling hole

530: fourth coupling hole 540: transceiver

550: input unit 560: control unit

570: output unit 580: drive unit

590: storage unit

Claims (10)

Traveling means installed on a rail installed in a building or a vertical structure to move on the rail; Elevating means including a hook for elevating a heavy object; And A load cell device connected between a lower end of the traveling means and an upper end of the elevating means, the load cell device generating load data by measuring a load of a heavy object caught by a hook of the elevating means; Carrying device with a load cell, characterized in that it comprises a. The method of claim 1, wherein the driving means, A transport apparatus having a load cell, characterized in that it comprises a first coupling hole and a second coupling hole for coupling with the load cell device at its lower end. The method of claim 2, wherein the load cell device, A load cell generating the load data; A first rotating member formed at an upper end of the load cell and having a cylindrical shape having an opening therein, and providing fluidity about an x axis which is an axis in the opening direction; And A second rotating member formed at a lower end of the load cell and having first and second bolts formed at both ends in a y axis direction perpendicular to the x axis of the first rotating member; Including; The opening of the first rotating member is located in the middle of the first coupling hole and the second coupling hole is provided with a load cell, characterized in that the fastening by the fastening bar. The method of claim 3, wherein the lifting means, And a third coupling hole and a fourth coupling hole respectively coupled to the first bolt and the second bolt of the load cell device. The method of claim 4, wherein A first nut coupled to the third coupling hole and fastened to the first bolt penetrated; And A second nut coupled to the fourth coupling hole and fastened to the second bolt penetrated; Carrying device with a load cell, characterized in that it further comprises. The method of claim 5, wherein the load cell device, Transmitting and receiving device for transmitting the load data measured by the load cell to the lifting means via wire or wireless communication; Carrying device with a load cell, characterized in that it further comprises. The method of claim 6, wherein the driving means, A transceiver for performing data transmission and reception with the transceiver; A storage unit for storing load data corresponding to a preset threshold; A driving unit connected to the hook to drive the hook; And A control unit which controls the transceiver to receive the measured load data, and controls the driving unit to stop or return the operation of the hook when the load data is equal to or greater than the load data corresponding to the threshold value; Carrying device with a load cell, characterized in that it comprises a. A load cell measuring load and generating load data; A first rotating member formed at one end of the load cell and formed into a cylindrical shape having an opening therein, and providing fluidity about an x axis which is an axis of the opened direction; And A second rotating member formed at the other end of the load cell and including first and second bolts formed at both ends in the y-axis direction perpendicular to the x-axis of the first rotating member; Load cell device comprising a. The method of claim 8, A first connecting member formed of an elastic material between the first rotating member and the load cell; And A second connecting member formed of an elastic material between the second rotating member and the load cell; A load cell device further comprising. The method of claim 9, A transceiver for transmitting the load data measured by the load cell to the outside via wired or wireless communication; A load cell device further comprising.

Images