RU112404U1 - CRANE SCALES - Google Patents

Abstract

1. Crane scales containing a traverse with hooks, ropes for lifting the traverse and load by a crane, load cells, a weighing device, a digital display unit, characterized in that the load cells are built directly into the hooks and are rigidly fixed, and for power supply of load cells, a weight measuring device and a digital unit battery used. ! 2. Crane scales according to claim 1, characterized in that the load cells are connected to the battery in series, a protected contact is installed on the traverse to connect the battery terminal to an external charger, and a radio modem is connected to the weighing device to communicate with the ACS computer and modems of neighboring cranes.

Description

The utility model relates to weighing equipment and can be used in various sectors of the national economy, for example, in agricultural production, in agricultural warehouses for loading and unloading.

Suspended crane scales (Application for the invention of the Russian Federation No. 94027725 A1, B66C 13/16) containing a housing with a lid connected by a cable to a crane hoisting drive, a force measuring sensor, a power unit, a power supply unit and equipment for visual indication of weighing results are located in the housing. Known suspended crane scales are not suitable for weighing large-sized objects due to the difficulty in ensuring their equilibrium state, since the load is attached to the scales at one point.

Also known, adopted for the prototype, scales for an overhead crane (RF Patent No. 2306533 C1, G01G 19/06), comprising a weight measuring device, a crosshead, hooks and load cells connected through the ropes with a crane block and load, a control circuit and a digital display unit, main and auxiliary hoists, with load-measuring modules mounted on them under the pulley pulleys, and underneath the pulley rollers of the main hoist, additional load-limiting modules connected with the parameter recorder and signaling system are installed torus overload.

The main disadvantages of the prototype are the complexity and high cost of the design associated with the presence of a large number of technological equipment located on the bridge structure.

The objective of the proposed utility model is to simplify the design, reduce material costs, increase work safety by placing the crane scale assemblies on the beam, which is easier to constructively and safer during installation and operation, because repair of scales can be carried out at zero level, on the floor of the workshop, without occupying a crane.

The problem is solved in that in a crane scale containing a traverse with hooks, ropes for lifting the beam and load with a crane, load cells, weight measuring device, digital indication unit, unlike the prototype, load cells are built directly into the hooks and are rigidly fixed, used to power the load cells battery, and on the traverse there is a protected contact for connecting the battery terminal to an external charger.

In addition, load cells are connected in series to the battery, a protected contact is installed on the traverse for connecting the battery terminal to an external charger, and a radio modem is connected to the weighing device to communicate with the ACS computer and modems of neighboring cranes.

A general view of the traverse scales is shown in figure 1, figure 2 shows a stand for storing the beam in the workshop, in figure 3 the connection of strain gauges. The traverse scale contains the traverse 1 itself, on which hooks 2 are mounted, mounted on bolts 3, passing through the traverse 1 and the strain gauge 4 (for example, type CAS, LSW or CHE, called “donut” or Center hole in the West in Russia). The hooks 2 are fixed with nuts 5 and crossbars 6. Using ropes 7, the crosshead 1 holds the load 8, lifted by a bridge crane (not shown in FIG. 1) using ropes 9 embedded in loops 10. The outputs of the load cells 4 are connected to the inputs of the weight measuring device 11 with a digital display unit (for example, type "UVT-01-M"). The output of the weighing device 11 is connected to the input of the modem 12 (for example, type TL-440) with the antenna 13. The power of the weighing device 11 is provided by the battery 14, and one terminal, for example, “minus” is connected at the point “a” with the crosshead housing, and the other insulated wire 15 brought through the bushing 16 to the side surface of the beam 1.

Figure 2 shows the stand 17 on the stand 18 for storing the beam 1 in the workshop when the beam 1 is not used in loading and unloading. Thanks to the stops 19, the crosshead 1 can be precisely installed on the stand 17, on which the charger 20 is located, the negative contact of which is connected to the mass of the stand 17 at the point “a”. The positive contact through the bushing 21 is displayed in the form of a hard panicle 22 at the place of contact with the wire 15. Such contacts have shown themselves well in production, work without failures and do not break when applied. Thanks to the contacts at points “a”, the connection of the battery 14 with the charger 20 is provided by a single-pole contact (elements 21 and 22), which allows you to connect the charger 20 without the participation of personnel. Figure 3 shows the connection of two load cells 4 (left and right in figure 1) to the battery 14. This connection allows 2 times to save the battery 14, which is important for work in continuous production.

The utility model works as follows.

Before starting work, the crane operator lifts the yoke 1 with the crane, first without load, then with the control weight (not shown in FIG.) And a computer (not shown in FIG.) Sets the weighing device 11 to test numbers (suppose 0000 is empty crosshead 1 and 3251 - weight of test load). One of the operating modes of the weighing device 11 is selected ("Gross", "NET", "SUMMATION", "JOINT SUMMATION"), which allows to record the receipt and consumption of materials in a specific situation.

Further actions of the crane operator are not difficult. When a series of sequential weighings are performed on the digital display unit of the weighing device 11, the final value is displayed (for example, the sum of the mass of vegetables loaded into the car or car) and when the loading rate is reached (the loud battle bell is turned on by a computer), the work is terminated.

Crane scales can also eliminate the overload of cranes, which often happen due to improper use, which causes accidents. At the end of the work, the crane operator gently lowers the crosshead 1 to stand 17, combining its left edge in FIG. 2 with the stop 19, so that the charger 20 is connected through a whisk 22 to the wire 15, providing recharge of the battery 14.

The proposed traverse scales will find application in various sectors of the economy, for example, in agricultural production in agricultural warehouses for loading and unloading.

Claims (2)

1. Crane scales containing traverse with hooks, ropes for lifting the traverse and load with a crane, load cells, weight measuring device, digital display unit, characterized in that the load cells are built directly into the hooks and are rigidly fixed, and to power the load cells, weight measuring device and digital block Indication used battery. 2. The crane scale according to claim 1, characterized in that the load cells are connected in series to the battery, a protected contact is installed on the traverse for connecting the battery terminal to an external charger, and a radio modem is connected to the weighing device for communication with the ACS computer and the modems of adjacent cranes.