CN2514340Y

CN2514340Y - On-line detecting viscosimeter

Info

Publication number: CN2514340Y
Application number: CN 01277925
Authority: CN
Inventors: 梁明湖; 杨作; 田志昶
Original assignee: Qingdao Boen Engineering Technology Co ltd
Current assignee: Qingdao Boen Engineering Technology Co ltd
Priority date: 2001-12-26
Filing date: 2001-12-26
Publication date: 2002-10-02
Anticipated expiration: 2011-12-26

Abstract

An online viscometer is an improvement upon the prior rotary viscometer. The characteristic of the online viscometer is a moment measuring rotor, connected with a U-shaped gangway fixed by another boom and a hook, with an upper disc, chassis and three columns for fixing the upper disc, the chassis and the moment measuring rotor, rotating with an electric shaft, and with a chassis having a center shaft and a shaft having an inferior thin end. And the structure of the upper disc and the chassis is to set two face-to-face sectors with 90 degree central angle at the peripheral of a disc with a hole in the center. And while is in cohensionless resistance, the two sectors of upper disc are cross anastomosed with the two sectors of chassis, that is, always maintaining the mechanical zero point and realizing the convenient online measuring of the viscosity value of the displacement of relative angles of the upper disc and the chassis.

Description

Online detection viscosity meter

The utility model relates to a kind of viscosity instrument for automatic control, particularly a kind of online detection viscosity meter.

Existing viscosity meter is contained testing liquid in open-top receptacle, small column (or the cylinder that weighs down as viscosity, circular cone) is dipped under the liquid level, when rotary bodies such as small column are stablized rotation with certain permanent rotating speed in testing liquid, the viscosity of the fluid to be measured power that stagnates is exactly the moment of torsion that drives small column, change this torque axis into discernible kinetic viscosity numerical value by micro processor controls and display device, this survey square rotor is crucial mechanical hook-up of the survey square between motor output shaft and the hook that hangs the viscosity bob or parts, it is coaxial and at the uniform velocity be the basic assurance of surveying square with stablizing of motor output shaft, but survey square rotor structure complexity, the cost height, gather the viscosity jitter, the observing and controlling poor stability, main is to survey on the physical construction of square rotor to make its online being difficult to regulate at any time or keep zero point, therefore is not suitable for online production and detects.

Purpose of the present invention overcomes the deficiencies in the prior art exactly, provides a kind of precision expensive low online detection viscosity meter.

The utility model is the improvement to above-mentioned existing rotary viscosimeter, custom-designed have upper and lower dish symmetrical expression survey square rotor and cooperate the directly required constant slow-speed of revolution of output of novel permanent magnetic low speed micromotor, the axle of this survey square rotor is connected with motor shaft by a shaft coupling and fixed mount is located on the support of pallet below, and shaft coupling is linked together motor shaft and survey square armature spindle.Be fixed in the dish of going up on the motor shaft.

It has via base plate and support and is fixed on motor on the pallet, the viscosity that the bottom hangs on the hook is weighed down and survey square rotor that has hairspring therebetween and the control circuit that comprises photoelectric probe and microprocessor, it is characterized in that surveying the square rotor the upward dish that rotates synchronously with motor shaft is arranged, chassis and fixing three root posts of usefulness therebetween, and the lower wall of central rotating shaft arranged, the following thin termination of rotating shaft connects another arm and a fixing U-shaped gap bridge of hook, the two ends of hairspring wherein are separately fixed at the rotating shaft of lower wall and wherein on the column, and last dish structurally is the porose disk in center with lower wall and also is provided with relative two covering of the fans that become 90 ° of central angles on its periphery, and the covering of the fan in twos of dish and lower wall intersects identical on when inviscid resistance, block the light emitting diode on the photoelectric probe and do not produce pulse signal output, promptly can guarantee or keep mechanical zero all the time

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 general structure synoptic diagram of the present utility model.

Fig. 2 A-A cut-open view of the present utility model.

Fig. 3 B-B cut-open view of the present utility model.

Fig. 4 C-C cut-open view of the present utility model.

The utility model has via base plate 12 and support 11 and is fixed on motor 1 on the pallet 2, the viscosity of hook on 13 that hangs over of bottom weighs down 14 with the survey square rotor that has hairspring 8 therebetween with comprise the control circuit of photoelectric probe 7 and microprocessor, it is characterized in that surveying the square rotor the upward dish 5 that rotates synchronously with motor shaft is arranged, chassis 19 and fixing three root posts 20 of usefulness therebetween, and the lower wall 6 of central rotating shaft 18 arranged, the following thin termination of rotating shaft 18 connects another arm and passes a bridge 10 with the U-shaped that hook 13 is fixed, the two ends of hairspring 8 wherein are separately fixed at the rotating shaft 18 of lower wall 6 and wherein on the column 20, and last dish 5 structurally is the porose disk in center with lower wall 6 and also is provided with relative two covering of the fans that become 90 ° of central angles on its periphery, the covering of the fan in twos of going up dish 5 and lower wall 6 when inviscid resistance intersects identical, block the light emitting diode 15 on the photoelectric probe 7 and do not produce pulse signal output (promptly being considered as zero point), must not calibrate zero point at any time when therefore, survey square rotor of the present utility model structurally can guarantee online detection.Consider that being convenient to lower wall 6 rotates flexibly and make column 20 pass lower wall 6 and make dish 5 and chassis 19 fixing with the bolts at two ends 16 of column, on lower wall 6, also offer three near 100 ° slotted eye 17.Be the resistance of reducing friction, also can establish a shrinkage pool or bearing 9 at 19 centers, above-mentioned chassis to match with the top of rotating shaft 18.Above-mentioned survey square rotor is when the viscosity resistance, relatively move on the open breach a by being reflected in dish 5 and lower wall 6 behind hairspring 8 balances, the electric probe 7 of the light emitting diode light 15 by photoelectric tube is arranged converts this angular displacement a to pulse signal and is controlled by existing 51 series monolithics or microprocessor, and the angular displacement a signal that On-line Control only will be wherein and the viscosity criterion of having set relatively the actuator action of adjusting viscosity of signal of back output get final product.(figure omits)

Above-mentioned survey square rotor and axle thereof connect also by a shaft coupling 3, and fixed mount is located on the support 11 of pallet 2 belows with motor shaft.Above-mentioned motor 1 is selected the permanent magnet low-speed motor for use.

Therefore, the utility model is rational in infrastructure, and is simple and reliable, in snap fit capsule is produced, and can the required viscosity number of online long-term and stably observing and controlling at any time.

Claims

1, a kind of online detection viscosity meter, have via base plate (12) and support (11) and be fixed on motor (1) on the pallet (2), the viscosity that hangs on the hook (13) of bottom is weighed down (14) and survey square rotor that has hairspring (8) therebetween and the control circuit that comprises photoelectric probe (7) and microprocessor, it is characterized in that surveying the square rotor the upward dish (5) that rotates synchronously with motor shaft is arranged, the chassis (19) and fixing three root posts (20) of usefulness therebetween, and the lower wall (6) of central rotating shaft (18) arranged, the following thin termination of rotating shaft (18) connects another arm and the fixing U-shaped gap bridge (10) of hook (13), the two ends of hairspring wherein (8) are separately fixed at the rotating shaft (18) of lower wall (6) and wherein on the column (20), and last dish (5) structurally is the porose disk in center with lower wall (6) and also is provided with relative two covering of the fans that become 90 ° of central angles on its periphery, the covering of the fan in twos of dish (5) and lower wall (6) intersects and coincide on when inviscid resistance, blocks the light emitting diode (15) on the photoelectric probe (7) and does not produce pulse signal and export.

2, online detection viscosity meter as claimed in claim 1, it is characterized in that also can establishing at center, above-mentioned chassis (19) shrinkage pool or bearing (9) with top the matching of rotating shaft (18).

3, online detection viscosity meter as claimed in claim 1 is characterized in that above-mentioned survey square rotor and axle thereof are connected with motor shaft by a shaft coupling (3) and fixed mount is located on the support (11) of pallet (2) below.