CN1824480A

CN1824480A - Shipborne concrete mixer ingredient weighing device

Info

Publication number: CN1824480A
Application number: CN 200410093441
Authority: CN
Inventors: 甄亮; 王宣槐
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-23
Filing date: 2004-12-23
Publication date: 2006-08-30

Abstract

The present invention relates to a ship borne concrete mixer material-matching weighing device. It includes the following several portions: proportioning bin, supporting frame, control portion, weighing unit, converter, correction unit and weighing value output unit. Said invention also provides their connection mode, and the working principle and operation method of said weighing device.

Description

Shipborne concrete mixer ingredient weighing device

Technical field

The present invention relates to the measurement of quality in the physical measurement, especially relate to the Shipborne concrete mixer ingredient weighing technology.

Background technology

At present in boat-carrying formula concrete mixer, general Weighing apparatus for apportioning material adopts electron pressure LOAD CELLS or tension force LOAD CELLS, carrying out weight weighs, because weighing equipment is to float on the water, Weighing is in fluctuation constantly, batching will constantly produce overweight or weightless when particularly stormy waves is big, have a strong impact on the precision of batch weighing, this gives accurately, and batching weighing brings difficulty, because can not be controlled at the correct proportions of various batching compositions in the concrete stirring waterborne effectively, thereby influenced the quality of concrete product, influenced concrete production.

Summary of the invention

At the shortcoming that exists in the above-mentioned prior art, technical problem to be solved by this invention provides also can guarantee weighing Shipborne concrete mixer ingredient weighing device accurately when a kind of weighing equipment floats on the water.

In order to solve the problems of the technologies described above, according to a kind of Shipborne concrete mixer ingredient weighing device provided by the present invention, comprise the weighing unit, the weighing value output unit that connect converter in batch hopper, support, the control section, it is characterized in that: the correcting unit that also comprises the object of reference of object of reference weighing unit, fixed weight, the correction coefficient that produces batching and correction weighing; Wherein, the object of reference weighing unit connects converter, and converter connects correcting unit, and weighing unit connects correcting unit through converter; In the course of work of Shipborne concrete mixer ingredient weighing device, the object of reference weighing unit with reference to the instant weighing information of thing after converter converts digital information to, transfer to correcting unit, in correcting unit, remove the former fixed weight of storing in the correcting unit of object of reference by the instant Weighing of object of reference and obtain correction coefficient; The instant weighing information that weighing unit will be prepared burden is after converter converts digital information to, transfer to correcting unit, instant Weighing by batching multiply by the correction weighing that correction coefficient obtains preparing burden, i.e. Pei Liao accurate weighing, the accurate weighing information that correcting unit will be prepared burden transfers to weighing value output unit, in order to control charging valve; Described weighing unit comprises signal amplifier and the electronic load cell more than three, described object of reference weighing unit also comprises signal amplifier and the electronic load cell more than three, and described electronic load cell comprises electron pressure LOAD CELLS or tension force LOAD CELLS.

Beneficial effect of the present invention: owing to adopted the method for proofreading and correct weighing with the object of reference of fixed weight, thereby when Shipborne concrete mixer ingredient weighing device is floated on the water, also can guarantee the accurate of concrete batching weighing, avoided producing the overweight or weightless weighing error that produces because of fluctuation waterborne makes batching, guarantee the correct proportions of various batching compositions in the concrete stirring effectively, thereby guaranteed the quality of concrete product.

Description of drawings

Fig. 1 is the structural representation block diagram of control section;

Fig. 2 is the scheme of installation of the embodiment of employing electron pressure LOAD CELLS;

Fig. 3 is the scheme of installation of the embodiment of employing electronic tensile LOAD CELLS.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

The operation principle of Shipborne concrete mixer ingredient weighing device is as follows: as shown in Fig. 3 of the present invention, with the object 22 of fixed weight as object of reference, be installed on the same support 19 with reference to thing 22 and object of reference weighing unit thereof and batch hopper 23 and weighing unit thereof, make it consistent at stormy waves mesorelief state, be that object of reference 22 and batching are when overweight or weightless, the rate of change of weight is consistent, can obtain thus: Pn/Pn '=Po/Po ', Pn is the accurate weighing of batching in the equation, Po is the actual weight of object of reference, Pn ' and Po ' are respectively in stormy waves rises and falls, batching and the instant Weighing of object of reference when overweight or weightless; Because the weight Po of object of reference is a known fixed, Pn ' and Po ' can record from weighing unit and object of reference weighing unit respectively immediately, accurate weighing Pn=Pn ' * Po/Po ' after proofreading and correct so can from above-mentioned equation, obtain preparing burden, wherein Po/Po ' is a correction coefficient, it is the rate of change of weight, that is to say that the Weighing Pn ' that the accurate weighing Pn of batching can be recorded immediately by the weighing unit of batching multiply by correction coefficient Po/Po ' and obtains in stormy waves rises and falls.

In an embodiment of the present invention, the structure of its control section comprises the weighing unit 3, the weighing value output unit 9 that connect multi-channel a/d converter 4 as shown in fig. 1, also comprises object of reference weighing unit 8, correcting unit 10; Wherein, object of reference weighing unit 8 connects correcting unit 10 through multi-channel a/d converter 4, and weighing unit 3 connects correcting unit 10 through multi-channel a/d converter 4; Described weighing unit 3 comprises signal amplifier 2 and three electronic load cells 1, and described object of reference weighing unit 8 also comprises signal amplifier 6 and three electronic load cells 7; In the course of work of Shipborne concrete mixer ingredient weighing device, after object of reference weighing unit 8 converts digital information to reference to the multi-channel a/d converter 4 in the instant weighing information Po ' process industrial computer 5 of thing, transfer to correcting unit 10, in the correcting unit 10 of industrial computer 5, the former fixed weight Po of object of reference that is removed storage in the correcting unit 10 by the instant Weighing Po ' of object of reference obtains correction coefficient Po/Po '; The instant weighing information Pn ' that weighing unit 3 will be prepared burden is after multi-channel a/d converter 4 converts digital information to, transfer to correcting unit 10, instant Weighing Pn ' by batching multiply by the correction weighing Pn that correction coefficient Po/Po ' obtains preparing burden, i.e. Pei Liao accurate weighing Pn=Pn ' * Po/Po ', the accurate weighing information Pn that correcting unit 10 will be prepared burden after proofreading and correct transfers to weighing value output unit 9, in order to control charging valve; In other embodiments of the invention, described weighing unit 3 also can comprise signal amplifier 2 and the electronic load cell more than three, and described object of reference weighing unit 8 can also comprise signal amplifier 6 and the electronic load cell more than three.In the embodiment shown in Fig. 1, the model of

signal amplifier

2,6 is CMB-5464D, and the model of multi-channel a/d converter 4 is PC-7423;

Electronic load cell

1,7 can be that model is the suspension type electronic tensile LOAD CELLS of TSC-XX series, also can be that model is the pressure-bearing type electron pressure LOAD CELLS of SB-XX series; In other embodiments of the invention, the industrial computer 5 in the control section also can adopt common personal computer, i.e. PC.

In an embodiment of the present invention, the structure that adopts the electron pressure LOAD CELLS as shown in Figure 2, batch hopper 16 and three electron pressure LOAD CELLSs 12 thereof are installed on the same support 13 with object of reference 15 and three electron pressure LOAD CELLSs 14 thereof; In Fig. 2,17 are the discharging valve; In other embodiments of the invention, the electron pressure LOAD CELLS of batch hopper 16 and object of reference 15 also can be set to more than three.

In an embodiment of the present invention, the structure that adopts the electronic tensile LOAD CELLS as shown in Figure 3, batch hopper 23 and three electronic tensile LOAD CELLSs 20 thereof are installed on the same support 19 with object of reference 22 and three electronic tensile LOAD CELLSs 21 thereof; In Fig. 3,24 are the discharging valve; In other embodiments of the invention, the electronic tensile LOAD CELLS of batch hopper 23 and object of reference 22 also can be set to more than three.

Claims

1. Shipborne concrete mixer ingredient weighing device, comprise the weighing unit (3), the weighing value output unit (9) that connect converter (4) in batching (23), support (19), the control section, it is characterized in that: the correcting unit (10) that also comprises the correction weighing Pn ' * Po/Po ' of the object of reference (22) of object of reference weighing unit (8), fixed weight, the correction coefficient Po/Po ' that produces batching and batching; Wherein, object of reference weighing unit (8) connects correcting unit (10) through connecting converter (4); Weighing unit (3) connects correcting unit (10) through converter (4).

2. Shipborne concrete mixer ingredient weighing device according to claim 1 is characterized in that: described weighing unit (3) comprises signal amplifier (2) and the electronic load cell more than three (1); Described object of reference weighing unit (8) comprises signal amplifier (6) and the electronic load cell more than three (7).

3. Shipborne concrete mixer ingredient weighing device according to claim 1 and 2 is characterized in that: described electronic load cell (1,7) is an electron pressure LOAD CELLS (12,14).

4. Shipborne concrete mixer ingredient weighing device according to claim 1 and 2 is characterized in that: described electronic load cell (1,7) is an electronic tensile LOAD CELLS (20,21).