TW201345823A - Counterweight device for load test and configuration method thereof - Google Patents

Abstract

This invention relates to a counterweight device for load test, comprising a housing capable of being poured with the fluid filler, and a weighing unit carrying the housing and sensing the total weight of the housing and the filler. The configuration method comprising the following steps of: step 1: preparing counterweight device not including the filler on a lifting machine; step 2: pouring the filler into the housing; and step 3: sensing and displaying the total weight of the housing and the filler with the weighing unit and stopping pouring the filler when the total weight reaches a preset value. Accordingly, this invention is a counterweight device using a housing which is light-weighted and convenient to transport, matching up with the filler having fluidity and a weighing unit capable of displaying the total weight, to be disposed on a lifting machine for the load test. Under the status of convenience in transport and the precisely controlled weight, the safety and practicality during test can be enhanced.

Description

Weight device for load test and configuration method thereof

The present invention relates to a weight device, and more particularly to a weight device for load testing and a method of assembling the same.

"Elevator", such as elevators, cranes, cranes, etc., refers to mechanical equipment that transports people or goods up and down in a vertical direction. Therefore, in order to enhance the safety and reliability during ascent and descent, and to prevent accidents such as falling, it is necessary to ensure that the equipment of the lifting machine is perfect, and that it is regularly tested and maintained to maintain the safety of people or goods.

Referring to FIG. 1 , taking the load test of the lift tool 1 as an example, it is mainly to test whether the overload protection measure is activated when the load demand of the lift tool 1 exceeds the predetermined load weight, and the test method is as follows:

Step 1: Prepare a plurality of weights 2 of the same or different weight.

Step 2: The aforementioned weight 2 is transported into the elevator 1 by a manpower or a machine.

Step 3: When the total weight of the aforementioned weight 2 is greater than the aforementioned predetermined load weight, the handling of the weight 2 is stopped.

Thereby, the elevator 1 equipped with the weight 2 is subjected to the relevant test.

Since the total weight of the weights 2 must be equivalent to the load of the lift 1 to achieve the test effect, for example, if the predetermined weight of the lift 1 is 1500 kg, the weights The total weight of 2 is 750kg for half of the ride weight, plus the weight of the lift is assumed to be 2000kg, the total weight required for weighing is 2750kg, taking the weight of each 30kg as an example, the number of weights 2 required is about 92, and the weight is increased by 20%. The maximum amount of overload test is 120%. The test requires 10 counterweights, which is a waste of manpower and resources for the examinee.

However, most of the industry currently uses cast iron as the weight 2, which is not only heavy, but also requires a considerable amount of raw materials to be cast into the weights 2, with 1 million elevators, one load test per year. For example, 250 working days, on average, 4000 elevators must be tested every day. On each day, 12,200 metric tons (3050 kg × 4000 parts) of cast iron are transported, with the following defects:

1. The weight of the weight of the cast iron 2 is high, which is quite inconsistent with economic benefits. Although some operators have attempted to cast these weights 2 with cement (specific gravity of about 2.7), or ore (specific gravity of about 3), or iron waste (specific gravity of about 4), because the specific gravity of the aforementioned materials is below 4 It is necessary to increase the amount to reach the predetermined total weight, and it is easy to be brittle due to large volume and is not practical.

2. Since the weight of the weight 2 is quite heavy, it is difficult to carry, and during the handling of moving into the lift 1 or moving out of the lift 1, if there is a fall, it will cause injury to people and products. Therefore, there is indeed room for improvement in terms of security.

3. The weights 2 are easily lost during the handling process due to collisions. Therefore, in the case where the weight change of the weights 2 cannot be accurately known, the total weight of the weights 2 is There will be errors, which will affect the test. The accuracy.

Accordingly, it is an object of the present invention to provide a counterweight apparatus for load testing and a method of arranging the same for ease of handling and precise weight control.

The weight device for load testing of the present invention comprises a casing, a filler, and a weighing unit. The outer casing has a casing wall defining a chamber and an opening formed in the casing wall. The filler is a fluid having a specific gravity of 3 or more, and is injected into the outer casing from the opening and filled in the chamber. The weighing unit has a weighing platform on which the casing is placed, and a sensing element that senses the total weight of the casing and the filler.

Therefore, the weighting device configuration method for load testing of the present invention is applied to a lifting tool for performing load testing, and a weight device is used as a testing tool, and the weight device includes a casing capable of injecting a fluid filling material. And a weighing unit that mounts the outer casing and senses the outer casing and the total weight of the filling material, the weighting method comprises the following steps: Step 1: preparing the weighting device that does not contain the filling material on the lifting implement. Step 2: Inject the filler into the outer casing. Step 3: After the weight measuring unit senses and displays that the total weight of the outer casing and the filling material reaches a predetermined value, the injection of the filling material is stopped.

The utility model has the advantages that the outer casing can be conveniently transported, the filling material with fluidity, and the weight measuring unit capable of displaying the total weight, and the weight device for testing the load is arranged on the lifting tool, which is convenient for handling and Improve the safety and convenience of testing with precise weight control.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to Figures 2 and 3, a preferred embodiment of the counterweight apparatus 3 for load testing of the present invention includes a housing 31, a filler 32, a load cell 33, and a plurality of wheel sets 34.

The outer casing 31 is made of a metal material in the preferred embodiment and has a casing wall 311 defining a chamber 310 and an opening 312 formed in a top surface of the casing wall 311.

The filler 32 is a particulate fluid having a specific gravity of 3 or more, or a powdery fluid or a liquid fluid, and is injected into the casing 31 through the opening 312 and filled in the chamber 310. In the preferred embodiment, the filler 32 is a mineral sand having a flow effect and is filled with the outer casing 31.

The weighing unit 33 has a weighing platform 330 on which the outer casing 31 is placed, a sensing element 331 sensing the total weight of the outer casing 31 and the filling material 32, and a casing wall 311 mounted on the outer casing 31 and the scale A display module 332 in which the stations 331 communicate with each other. The display module 332 is a display for displaying weight in the preferred embodiment.

The wheel sets 34 are mounted on a bottom surface of the weighing platform 331.

Referring to FIG. 4, and FIG. 2, FIG. 3, and FIG. 5, the following is a description of a method for configuring a weight device for load testing according to the present invention, and a description of the steps of the embodiment is as follows:

Step 61: Carrying the weight device 3 not containing the filler 32 into an elevator 4 (such as an elevator).

By carrying the weight device 3, the weight device 3 can be directly advanced into the elevator tool 4 by the rolling effect of the wheel set 34.

Step 62: Extracting the filler 32 disposed outside the elevator 4 with a filler (not shown) to inject the fluid-filled material 32 into the chamber 310 of the casing 31. In the preferred embodiment, the opening 312 of the outer casing 31 and the container (not shown) loaded with the filler 32 are connected by a pipe member 5, and the container carrying the filler 32 is transported to the vicinity by means of a vehicle. The position of the lift tool 4.

Step 63: The sensing component 331 of the weight measuring unit 33 senses the total weight of the outer casing 31 and the filler 32 and displays it on the display module 332.

Step 64: After the display module 332 displays that the total weight of the outer casing 31 and the filler 32 reaches a predetermined value, the injection of the filler 32 is stopped, and the configuration operation of the weight device 3 is completed.

It should be noted that when the weight device 3 is to be evacuated or the weight device 3 is to be discarded, the filler 32 in the chamber 310 is simply taken out by the opening 312, whereby not only the filler 32 but also the filler 32 can be recovered. By utilizing and releasing the outer casing 31 of the filler 32, the weight can be greatly reduced, and the unloading and handling can be facilitated.

Further, the metal casing 31 can shape the filler 32 to form a desired solid form by its own shape, and can provide the strength required for the weight device 3 as a whole, thereby preventing the occurrence of brittle fracture.

According to the above description, the weight device for load test of the present invention and the configuration method thereof have the following advantages and effects:

1. The present invention is capable of injecting the filler 32 of the housing 31 into a housing 31 in a portable, easy-to-handle housing. The configuration work of 3 sets not only omits the pre-operations such as melting and casting, but also saves materials and effectively reduces costs, thereby achieving economic benefits.

2. When the outer casing 31 is transported, the filler 32 is not injected, so that the weight during transportation can be greatly reduced, the convenience during transportation can be improved, and the risk of manual handling, disassembly, and assembly can be reduced, and the present invention can be made. More secure.

3. Although the filler 32 is fluid, it can be matched with the metal casing 31 to provide the overall strength required of the weight device 3 to avoid defects, and the present invention can be precisely controlled by the weight measuring unit 33. The total weight of the weight device 3 further improves the accuracy of the test.

4. The fluid-like filler 32 has a function of being reusable and reduces waste of earth resources.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

3‧‧‧weight device

31‧‧‧ Shell

310‧‧ ‧ room

311‧‧‧Shell wall

312‧‧‧ openings

32‧‧‧Filling materials

33‧‧‧Weighing unit

330‧‧‧Weighing platform

331‧‧‧Sensor components

332‧‧‧Display module

4‧‧‧ Lifting equipment

5‧‧‧ Pipe fittings

61~64‧‧‧Step process

1 is a schematic view showing a load test flow of a general lift tool; FIG. 2 is a perspective view showing a preferred embodiment of a weight device for load test of the present invention; FIG. 3 is a preferred embodiment of the present invention; Figure 4 is a flow chart illustrating a method of configuring a weight device for load testing in accordance with the present invention in combination with the preferred embodiment; Figure 5 is a schematic view showing the preferred embodiment stacked in an elevator.

3‧‧‧weight device

31‧‧‧ Shell

310‧‧ ‧ room

311‧‧‧Shell wall

312‧‧‧ openings

32‧‧‧Filling materials

33‧‧‧Weighing unit

330‧‧‧Weighing platform

331‧‧‧Sensor components

332‧‧‧Display module

Claims (9)

A weighting device for load testing, comprising: a casing having a casing wall defining a chamber; and an opening formed in the casing wall; a filler having a specific gravity of 3 or more, the opening Injecting the outer casing and filling the chamber; and a weighing unit having a weighing platform on which the outer casing is mounted, a sensing component sensing the total weight of the outer casing and the filling material, and a display module displaying the total weight . A weight device for load testing according to claim 1, wherein the filler is injected into and withdrawn from the chamber. A weight device for load testing according to claim 1, wherein the filler is one of a particulate fluid, a powder fluid, and a liquid fluid. A weighting device for load testing according to claim 3, wherein the filler is ore. The weight device for load testing according to claim 1 of the patent application scope further includes a plurality of wheel sets mounted on a bottom surface of the weighing platform. A weighting device for load testing according to claim 1, wherein the display module is mounted on the housing and communicates with the weighing platform. A weighting device configuration method for load testing, applied to a lifting tool for load testing, and using a weighting device as a testing tool, the weight device comprising a casing capable of injecting a fluid filling material, and placing The a weight measuring unit that senses the outer casing and the total weight of the filling material, the weighting method comprising the following steps: Step 1: preparing the weighting device not containing the filling material on the lifting machine; Step 2: filling the filling material Injecting into the outer casing; and step 3: the weighing unit senses and displays that the outer casing and the total weight of the filling material reach a predetermined value, and stops injecting the filling material. The method for configuring a weight device for load testing according to claim 7, wherein the filler is one of a granular fluid, a powdered fluid, and a liquid fluid. The method for configuring a weight device for load testing according to claim 8, wherein the filler is ore and the overall specific gravity is 3 or more after filling the housing chamber.