CN201497552U

CN201497552U - On-line calibrated full suspended rotor metering weigher

Info

Publication number: CN201497552U
Application number: CN2009202338746U
Authority: CN
Inventors: 厉达; 程建; 何福胜
Original assignee: JIANGSU SAIMO GROUP CO Ltd
Current assignee: Saimo Electric Co Ltd
Priority date: 2009-07-23
Filing date: 2009-07-23
Publication date: 2010-06-02
Anticipated expiration: 2019-07-23

Abstract

An on-line calibrated full suspended rotor metering weigher comprises a rotor feeding machine, weighing sensors, a speed measuring sensor, a display control instrument and calibration equipment arranged on a machine frame, wherein the rotor feeding machine is supported on three groups of weighing sensors in a suspension manner, the three groups of weighing sensors are distributed triangularly, and one end of each group of weighing sensors is fixedly connected to the machine frame while the other end thereof is connected to an outer circle support saddle of the rotor feeding machine; and the speed measuring sensor is arranged at the upper part of the rotor feeding machine, and a limit pull rod connected with the machine frame is arranged on the outer circle. The three groups of weighing sensors and the weighing sensor for the calibration equipment are connected with a same display control instrument, thereby overcoming the defect of inaccurate metering of the lever type rotor weigher, avoiding the error caused by the lever structure, reducing the processing difficulties of rotors, improving the measuring accuracy of the rotor weigher, simplifying the structure, and performing real time on-line detection; and the weigher has the advantages of accurate metering, convenient use and easy maintenance.

Description

The full suspension type rotor weigher of on-line calibration

Technical field

The utility model relates to a kind of weigher, and especially a kind of being applicable to carries out dynamically weighing continuously and the rotor weigher of dosing to powdery and granular material.

Background technology

At present, be used for powdery and granular material are carried out dynamically weighing continuously and the rotor scale of dosing adopts the rotor feed to add that the mode of weighing continuously realizes measuring more and feed; Its structure mainly comprises the frame that has two gudgeon articulated elements, the weighing sensing device of band suspension hook, frame, feed pieces, discharging parts, the rotor batcher of interior cartridge rotor delivery plate, drive unit, and control box; The outside of rotor batcher is provided with three fulcrums, wherein two draw a straight line as the fixedly hinge of lever, simultaneously be provided with the fulcrum of weighing that is made of LOAD CELLS on the horizontal vertical bisector of this line, the rotor scale foundation is in this 3 composition lever scales or balance weighing apparatus.This rotor scale is weighed to the material of input, and by measuring the rotating speed of rotor, calculates the flow of material again by instrument.This structure comes with some shortcomings: first supporting form, and generally all adopt the edge of a knife or bearing as fulcrum, there is easy to wear and insensitive defective; It two is only to use single sensor to measure partial material in the rotor disk by lever principle, and precision is difficult to improve; It three is that lever construction is had relatively high expectations to the quality of balance of rotor, if the balance quality of rotor is not high, and the stressed instability of LOAD CELLS when the rotor scale turns round then, metering is inaccurate easily; More than some directly has influence on the measuring accuracy of rotor scale.

Summary of the invention

The purpose of this utility model is the weak point that overcomes in the prior art, provides a kind of simple in structure, and metering is accurate, the full suspension type rotor weigher of the on-line calibration of easy care.

For achieving the above object, the technical solution of the utility model: comprise the rotor batcher that is located on the frame, LOAD CELLS, tachogenerator, show control instrument and calibration equipment, described rotor batcher is supported on three groups of LOAD CELLS, three groups of LOAD CELLS distributions triangular in shape, one end is connected on the frame, and the other end is connected on the cylindrical bearing of rotor batcher; Rotor batcher top is provided with tachogenerator, and cylindrical is provided with the limit pull rod that links to each other with frame; Three groups of LOAD CELLS are connected same demonstration control instrument with the calibration equipment LOAD CELLS.

The two groups of LOAD CELLS that link to each other with the ball pivot oscillating bearing in described three groups of LOAD CELLS and the charging aperture of rotor batcher are arranged point-blank; The cylindrical bearing of described rotor batcher is made of ball pivot oscillating bearing and V shape earrings with matching; The cylindrical bearing of described rotor batcher is made of upper ball base, lower ball base and the steel ball that is located between the lower ball base; Described limit pull rod is one or two; Described calibration equipment comprises the calibration equipment LOAD CELLS that is located on the calibration equipment support, the calibration equipment LOAD CELLS is provided with calibration equipment rotor batcher, calibration equipment rotor batcher is provided with the calibration equipment feed bin, connect the calibration equipment feed gate on the calibration equipment feed bin, calibration equipment rotor batcher is provided with the calibration equipment discharging chute.

Beneficial effect: be connected on the cylindrical bearing of rotor batcher owing to adopt LOAD CELLS to float, make the rotor batcher become floated structure, simultaneously lever rotor scale has been become the floated rotor weigher of on-line calibration.This full suspension type structure at first overcome exist in the lever-type structure rotor scale in the past because the easy to wear and insensitive inaccurate defective of metering that causes of balance pivot; Next adopts multisensor directly to measure rotor batcher and whole materials wherein, has avoided the error that lever construction brought; It three has overcome the problem that lever-type structure rotor scale is had relatively high expectations to the quality of balance of rotor, has reduced the difficulty of processing of rotor; Also solved simultaneously the not high stressed problem of unstable of LOAD CELLS when rotor turns round that produces of balance quality owing to rotor; The two groups of LOAD CELLS that link to each other with the ball pivot oscillating bearing in three groups of LOAD CELLS and the charging aperture of rotor batcher are arranged point-blank, if its benefit is when occurring can not the measuring of fault in these two groups of LOAD CELLS, can simultaneously full suspension type rotor weigher be transformed into lever scale and continue to use with these two groups of LOAD CELLS as balance pivot; Having improved the measuring accuracy and the reliability of rotor scale, is a kind of no lever, no bearing, friction free multisensor Weighing scale.In addition, the transmission signals with the scale LOAD CELLS of the LOAD CELLS of rotor batcher and check system shows and control that with a demonstration control instrument it is simple in structure, the energy real time on-line monitoring, metering is accurately, and is easy to use, easy care has practicality widely.

Description of drawings

Fig. 1 is a structural front view of the present utility model.

Fig. 2 is a structure vertical view of the present utility model.

Fig. 3 is rotor batcher cylindrical bearing one a johning knot composition of the present utility model.

Fig. 4 is rotor batcher cylindrical bearing two johning knot compositions of the present utility model.

Among the figure: 1-LOAD CELLS, 2-rotor batcher, 3-limit pull rod, 4-tachogenerator, 5-feed pieces, 6-drive motor, 7-discharging parts, 8-frame, 9-calibration equipment discharging chute, 10-calibration equipment feed gate, 11-calibration equipment feed bin, 12-calibration equipment rotor batcher, 13-calibration equipment LOAD CELLS, 14-calibration equipment support, 15-ball pivot oscillating bearing, 16-V shape earrings, 17-lower ball base, 18-steel ball, 19-upper ball base.

Embodiment

The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:

Shown in Fig. 1,2, the utility model mainly is made of verification feeding system and weighing system.The verification feeding system comprises the calibration equipment LOAD CELLS 13 that is located on the calibration equipment support 14, calibration equipment LOAD CELLS 13 is provided with calibration equipment rotor batcher 12, calibration equipment rotor batcher 12 is provided with calibration equipment feed bin 11, connect calibration equipment feed gate 10 on the calibration equipment feed bin 11, calibration equipment rotor batcher 12 is provided with calibration equipment discharging chute 9.Weighing system comprises sensor 1, rotor batcher 2, limit pull rod 3, tachogenerator 4, feed pieces 5, drive motor 6, discharging parts 7, frame 8.Weighing system is located at discharging opening one side of verification feeding system, LOAD CELLS 1 in the weighing system is three groups, symmetric arrangement, LOAD CELLS 1 is located at the bottom of rotor batcher 2, one end of three groups of LOAD CELLS 1 is connected on the frame 8, the other end is connected on the cylindrical bearing of rotor batcher 2, and the cylindrical bearing of rotor batcher 2 is made of ball pivot oscillating bearing 15 and V shape earrings 16 with matching, and is shown in Figure 3.The cylindrical bearing of rotor batcher 2 is made of upper ball base 19, lower ball base 17 and the steel ball 18 that is located between the lower ball base, and is shown in Figure 4.Three LOAD CELLS 1 be divided into two kinds connecting of rotor batcher 2, wherein two LOAD CELLS connect with rotor batcher 2 by ball pivot oscillating bearing 15, and the upper end that promptly is fixed on the ball pivot oscillating bearing 15 on the LOAD CELLS 1 links to each other with V shape earrings 16 on being fixedly connected on rotor batcher 2 by bearing pin.The another one LOAD CELLS is floated with rotor batcher 2 by steel ball 18 and is connected, and promptly is fixed on the lower ball base 17 on the LOAD CELLS 1 and lays steel ball 18, and upper ball base 19 lower ends are seated on the steel ball 18, its fixedly connected rotor batcher 2 in upper end; The two groups of LOAD CELLS 1 that link to each other with ball pivot oscillating bearing 15 in three groups of LOAD CELLS 1 are arranged point-blank with the charging aperture of rotor batcher 2, its benefit is when these two groups of LOAD CELLS 1 if fault can not measure the time, can full suspension type rotor weigher be transformed into lever scale continue to use with it as balance pivot.Tachogenerator 4 is located at the top middle portion of rotor batcher 2, is connected with two limit pull rods 3 on the cylindrical of rotor batcher 2, and distribution meets at right angles; Limit pull rod 3 along continuous straight runs settings, radially vertical with rotor batcher 2, limit pull rod 3 ends that link to each other with rotor batcher 2 are that spherical hinge universal is connected, and to be that ball ring is unsteady be connected the ends that link to each other with frame 8.Limit pull rod 3 plays and makes rotor batcher 2 the power on the LOAD CELLS 1 of acting on have only vertical direction, and the power of other direction does not act on the LOAD CELLS 1, and the weight of power on the LOAD CELLS 1 and material is the most approaching like this, the error minimum.Feed pieces 5 links to each other with the top feeding mouth of rotor batcher 2 by being flexible coupling, and feed pieces 5 is fixedly connected on the frame 8 by support simultaneously; Discharging parts 7 link to each other with the bottom discharging opening of rotor batcher 2 by being flexible coupling, and the parts 7 of discharging simultaneously are fixedly connected on the frame 8 by support; Drive motor 6 is fixedly connected in the middle of the bottom of rotor batcher 2, the output shaft of drive motor 6 and the rotor in the rotor batcher 2 link by key simultaneously, the rotating shaft of armature spindle in the rotor batcher 2 and tachogenerator 4 links, by the rotating speed of the rotor in the tachogenerator 4 detection rotor batchers 2.LOAD CELLS 1 under the rotor batcher 2 is connected same demonstration control instrument with calibration equipment LOAD CELLS 13, to make things convenient for staff's image data.

Claims

1. the full suspension type rotor weigher of an on-line calibration, comprise the rotor batcher (2) that is located on the frame (8), LOAD CELLS (1), tachogenerator (4), show control instrument and calibration equipment, it is characterized in that: described rotor batcher (2) is bearing on three groups of LOAD CELLS (1), three groups of LOAD CELLS (1) distribution triangular in shape, one end is connected on the frame (8), and the other end is connected on the cylindrical bearing of rotor batcher (2); Rotor batcher (2) top is provided with tachogenerator (4), and cylindrical is provided with the limit pull rod (3) that links to each other with frame (8); Three groups of LOAD CELLS (1) are connected same demonstration control instrument with calibration equipment LOAD CELLS (13).

2. the full suspension type rotor weigher of on-line calibration according to claim 1 is characterized in that: the two groups of LOAD CELLS (1) that link to each other with ball pivot oscillating bearing (15) in described three groups of LOAD CELLS (1) are arranged point-blank with the charging aperture of rotor batcher (2).(cutout belongs to function, can be placed in the instructions)

3. the full suspension type rotor weigher of on-line calibration according to claim 1 is characterized in that: the cylindrical bearing of described rotor batcher (2) is made of ball pivot oscillating bearing (15) and V shape earrings with matching (16).

4. the full suspension type rotor weigher of on-line calibration according to claim 1 is characterized in that: the excircle bearing of described rotor batcher (2) is made of upper ball base (19), lower ball base (17) and the steel ball (18) that is located between the lower ball base.

5. the full suspension type rotor weigher of on-line calibration according to claim 1, it is characterized in that: described limit pull rod (3) is one or two.

6. the full suspension type rotor weigher of on-line calibration according to claim 1, it is characterized in that: described calibration equipment comprises the calibration equipment LOAD CELLS (13) that is located on the calibration equipment support (14), calibration equipment LOAD CELLS (13) is provided with calibration equipment rotor batcher (12), calibration equipment rotor batcher (12) is provided with calibration equipment feed bin (11), calibration equipment feed bin (11) is gone up and is connected calibration equipment feed gate (10), and calibration equipment rotor batcher (12) is provided with calibration equipment discharging chute (9).