CN101793661A

CN101793661A - Viscosity measurement instrument

Info

Publication number: CN101793661A
Application number: CN201010114039A
Authority: CN
Inventors: 朱安生; 朱叶飞; 雒亮
Original assignee: HANGZHOU ZONWON TECHNOLOGY Co Ltd
Current assignee: HANGZHOU ZONWON TECHNOLOGY Co Ltd
Priority date: 2010-02-25
Filing date: 2010-02-25
Publication date: 2010-08-04
Anticipated expiration: 2030-02-25
Also published as: CN101793661B

Abstract

The invention particularly relates to an instrument which can accurately measure fluid viscosity, and aims to solve the problems the viscosity tube can be easily damaged during the insertion and pulling of the rubber cap connected in the existing method, and the gap between the upper measurement position and the lower measurement position of the existing viscometer can not be positioned accurately. In the technical scheme, a viscosity tube connector is arranged on a measurement bracket and comprises a press plate and a measurement bracket connecting block, wherein the press plate consists of an upper press plate and a lower press plate, one of the upper press plate and the lower press plate is connected with the measurement bracket connecting block, the press plate is provided with a plurality of connecting through holes penetrating through the upper press plate and the lower press plate, an elastic connecting components is arranged in the connecting through holes, the upper end of the elastic connecting component is communicated with an emptying orifice of a controller, the lower end of the elastic connecting component is connected with a viscosity tube, and a conveying hole is arranged on the axial line of the elastic connecting component. The invention can accurately position the gap between the upper measurement position and the lower measurement position, improve the measurement accuracy, and avoid the damage to the viscosity tube during the insertion and pulling of the rubber cap connected in the existing method. Moreover, the invention can be operated simply and conveniently, thereby saving time and labor, and improving the measurement efficiency.

Description

Viscosity measuring instrument

Technical field

The present invention relates to viscosity meter and make field, the particularly a kind of instrument that can accurately measure fluid viscosity.

Background technology

Liquid is when mobile, and the character that rubs in its intermolecular generation is called the viscosity of liquid, and the size of viscosity is represented with viscosity.Viscosity is to need one of index of monitoring in many commercial production, and viscometric principle generally mostly is to be derived the expression formula of the relevant coefficient of viscosity by Stokes formula and Poiseuille's formula, tries to achieve the coefficient of viscosity.The mensuration of viscosity parameter for the technology controlling and process of prediction process of producing product, conveying property and product operability in use, has important guiding value, has great significance in all conglomeraties such as chemical industry, printing, medicine, oil, automobiles.

Kinematic viscosity is an important quality index of chemical products, and at present, the viscosity meter that is used to measure chemical products kinematic viscosity is glass capillary tube viscometer, and commonly used have Pin Shi viscosity meter, a Ubbelohde viscometer etc.No matter adopt any viscosity meter to measure, all need be under the steady temperature and atmospheric pressure of appointment, the solution of measuring certain volume flows through the required time of a segment distance in the capillary viscosity tube of specifying specification, so that go out the viscosity of sample by data computation.Traditional metering system is that the operator observes with eyes, and notes sample flow with stopwatch and spend the required time of a segment distance, and this mode personal error is big, and the measurement of viscosity number is inaccurate.Now, people design the device that automatic test sample flows through a segment distance required time again, promptly testing stand and following testing stand are being set on the measurement bracket, in last testing stand and the following testing stand fibre-optical probe is housed respectively, fibre-optical probe monitoring sample flow is through the time of upper and lower detecting position, and with data delivery to the controller analyzing and processing.This mode can effectively be eliminated personal error, but to last, following testing stand is measured the location of position and is all adopted the spring location, utilize the degree of accuracy of elastic deformation control survey column pitch of spring low, on, deviation appears in distance easily between the following measurement position, cause the viscosity number error that records bigger, as the Chinese patent application (patent No.: 02210599.9), announced the automatic photoelectric detection system of a kind of capillary viscosimeter, this device comprises, following testing stand, on, be equipped with vertical pilot hole on the support body of following testing stand, establish the horizontal spring hole on the position corresponding with pilot hole, the opening of this spring eye is located at the support body side; And existing testing stand is sheet metal component, and the mould that need use is many, the production cost height.

On the existing viscosity measuring instrument, viscosity tube often adopts the Capsule connected mode with being connected of controller, this connected mode is the valve seat mouth of pipe on the end connection controller that connects flexible pipe, the other end that connects flexible pipe then connects one section metal circular tube, be with Capsule on the termination of metal circular tube, Capsule is connected to the viscosity mouth of pipe.When changing viscosity tube, need the plug Capsule, this causes the breakage of viscosity tube easily, and plug Capsule complicated operation, wastes time and energy, and efficiency of measurement is low.

Summary of the invention

The objective of the invention is to solve the Capsule connected mode causes the viscosity tube breakage easily when the plug Capsule problem, a kind of viscosity measuring instrument is provided, and it has avoided the damage to viscosity tube when the plug Capsule of Capsule connected mode, and is easy and simple to handle, time saving and energy saving, improved efficiency of measurement.

Another object of the present invention is to solve the existing upper and lower measurement column pitch of viscosity meter and locate coarse problem, a kind of viscosity measuring instrument is provided, it can accurately locate upper and lower measurement column pitch, improves measuring accuracy.

The technical solution adopted for the present invention to solve the technical problems is: a kind of viscosity measuring instrument, comprise viscosity tube, the viscosity tube support, the viscosity tube carriage, measurement bracket, and controller, controller comprises the photoelectricity liquid level detection system, microcomputer automatic control system, data handling system, the testing result output unit, a complete set of pump and valve cell, the viscosity tube connector is installed on the described measurement bracket, the viscosity tube connector comprises pressing plate and the measurement bracket contiguous block that is connected measurement bracket, described pressing plate is made up of top board and lower platen, top board, lower platen both one of connect the measurement bracket contiguous block, pressing plate is provided with some running through, the connecting through hole of lower platen, Flexible Connector is installed in the connecting through hole, the upper end that elasticity connects is communicated with the valve seat mouth of pipe on the controller, the lower end of Flexible Connector connects viscosity tube, has sprocket hole on the axis of Flexible Connector.The viscosity tube that the present invention uses is made up of topping up pipe, liquid-feeding tube and evacuated tube as Ubbelohde viscosity tube, Ubbelohde viscosity tube, and the topping up pipe is a measuring tube, in kapillary is arranged, liquid-feeding tube is the pipe of application of sample; The viscosity tube support is used to place viscosity tube, is convenient to the replacing of viscosity tube, and viscosity tube is played a protective role, and the upper end of viscosity tube support is a handle portion, and this handle portion has L shaped bending for the use that cooperates the viscosity tube connector; The front end of viscosity tube carriage has the claw of U-shaped, and in the vertical direction is held viscosity tube, guarantees the vertical state of viscosity tube; Measurement bracket is a main support of the present invention, controller is equipped with in the upper end of measurement bracket, controller is a control center, be used to control the measuring process of viscosity, and the data that record are analyzed, and the output result, the result of output is presented on the liquid crystal display on the controller, bluetooth module is housed in the controller, and the measured data of the present invention can utilize Bluetooth technology to realize wireless data transmission, printing, have avoided the loaded down with trivial details step of manual record data; Alarm set and warning device also are housed in the controller, alarm set is used for after measurement is finished the operator being carried out auditory tone cues, some abnormal occurrencies that warning device is used for measuring process is occurred are warned, and warning device can send caution sound and flash caution lamp; The viscosity tube connector is one and is used for connecting device that the valve seat in the controller is communicated with viscosity tube, the setting of viscosity tube connector avoided the Capsule connected mode when the plug Capsule to the damage of viscosity tube, easy and simple to handle, time saving and energy saving, improved efficiency of measurement; Pipe adapter on the viscosity tube connector and viscosity tube are on the same vertical direction, the vertical state of viscosity tube when guaranteeing to measure; Pressing plate is fixedly formed by top board and lower platen combination, be provided with like this and be convenient to upper and lower pressing plate and take the back Flexible Connector apart and be installed in the connecting through hole, one of them of top board or lower platen connects the measurement bracket contiguous block, save cost like this, the upper end of Flexible Connector is connected to the valve seat mouth of pipe on the viscosity measuring instrument controller by connecting flexible pipe, the lower end of Flexible Connector connects viscosity tube, such connection need not to plug Capsule, avoided of the damage of plug Capsule, had sprocket hole on the Flexible Connector axis and then be convenient to application of sample and measurement viscosity tube; Flexible Connector is made by teflon, and teflon has very strong corrosion-resistant; The upper and lower measurement column pitch that the present invention exists during also to viscosity measurement is located inaccurate problem and is improved, and is provided with viscosity meter and measures a position detent mechanism, with the upper and lower measurement column pitch in accurate location, thereby improves measuring accuracy; The size of viscosity depends primarily on the character and the temperature of liquid, measure viscosity, and it is just meaningful to control variation of temperature exactly, and therefore, the present invention need measure under isoperibol when measuring.

As preferably, connecting through hole comprises top board through hole and lower platen through hole, and the top board through hole is the through hole with a step, the top of lower platen through hole is counterbore, the bottom is a pilot hole, and it is horn-like that pilot hole is, and the top board through hole connects the counterbore on lower platen through hole top.Connecting through hole is top board through hole and the superimposed duct that is connected back formation of lower platen through hole, the top board through hole is the through hole with a step, this through hole is the up-small and down-big stepped hole of diameter, this can limit the zone of action that Flexible Connector makes progress, and does not hinder Flexible Connector upper end connector to stretch out again and then is connected to the valve seat mouth of pipe on the viscosity measuring instrument controller; The top of lower platen through hole is counterbore, and this counter bore hole diameters is up big and down small, can limit the downward zone of action of Flexible Connector like this, and the top board through hole is communicated with the counterbore on lower platen through hole top, and the up and down space that provides of Flexible Connector is provided; Pilot hole is horn-like opening, is convenient to guide the connection of viscosity tube, and the inwall of pilot hole is a cambered surface, can avoid the damage to viscosity tube like this; The lower end of counterbore connects the upper end of pilot hole, a well guiding spatial transition is provided for packing into of viscosity tube, is convenient to being connected of viscosity tube and Flexible Connector.

As preferably, Flexible Connector comprises shape and is connected hose adapter, viscosity tube joint and the spring that flexible pipe matches, Flexible Connector top is hose adapter, be with spring on the hose adapter, the Flexible Connector bottom is the viscosity tube joint, and the viscosity tube joint connects viscosity tube, and Flexible Connector has three, two valve seat mouths of pipe that are connected on the controller in three hose adapters in three Flexible Connector top, whole Flexible Connector is the boss shape.The upper end that the top board through hole is stretched out in the Flexible Connector upper end, the Flexible Connector main body is positioned at the space of top board through hole and lower platen top counterbore, the setting of the form fit connecting through hole of boss is convenient to Flexible Connector spacingly, is convenient to the upper and lower motion of Flexible Connector; Hose adapter can be communicated to the valve seat mouth of pipe on the viscosity measuring instrument controller; The viscosity tube joint is used to connect viscosity tube; The lower surface of the last end in contact top board through hole step of spring, the upper surface of the following end in contact viscosity tube joint of spring, the top board through hole is stretched out in the upper end of hose adapter, and viscosity tube joint bottom is positioned at the counterbore on lower platen through hole top; The setting of spring can make the upper and lower movable back of Flexible Connector return, be convenient to the connection of viscosity tube and change viscosity tube, the viscosity tube joint by the spring ejection in counterbore, guarantee finally to be connected to the viscosity tube joint after the viscosity mouth of pipe stretches in the pilot hole, three Flexible Connectors connect three mouths of pipe of Ubbelohde viscosity tube respectively, but only need two valve seat mouths of pipe that are connected on the controller in three hose adapters in three Flexible Connector top; During measurement, only need the liquid-feeding tube of Ubbelohde viscosity tube and evacuated tube are communicated with the valve seat mouth of pipe on the controller by Flexible Connector, and the topping up pipe does not need to be communicated to the valve seat mouth of pipe on the controller, only need be connected and get final product with Flexible Connector, only need play the effect that prevents that sample from overflowing because connect the Flexible Connector of topping up pipe, can reduce the setting of controller upper valve base like this, reduce cost.

As preferably, the lower end of viscosity tube joint has circular groove, silica gel sealing ring is housed in the circular groove, the medial surface of silica gel sealing ring is a spigot surface, the sidewall of circular groove is provided with a circle convex tendon, the lateral surface of silica gel sealing ring is provided with a circle draw-in groove, the convex tendon clamping on this draw-in groove and the circular groove sidewall.Circular groove is convenient to install silica gel sealing ring, silica gel sealing ring is used for the sealing that the viscosity tube interface is connected with viscosity tube, the medial surface of silica gel sealing ring is the access that spigot surface then is convenient to viscosity tube, and spigot surface is horn-like opening and is convenient to stretching into and sealing of the viscosity mouth of pipe like this; The draw-in groove clamping of indent on convex tendon on the circular groove and the silica gel sealing ring lateral surface, silica gel sealing ring is fixing relatively firmly like this, can not come off because of changing viscosity tube.

As preferably, the lower surface of top board is provided with recess, the upper surface of lower platen is provided with the projection that cooperates with recess, top board and lower platen are superimposed, one end of top board is fixed with the measurement bracket contiguous block, the measurement bracket contiguous block is provided with the measurement bracket mounting hole, is provided with the bearing that is used to install and measure support in the measurement bracket mounting hole, bearing and measurement bracket mounting hole interference fit.Recess can prevent relatively moving of top board and lower platen with projection after cooperating, and the measurement bracket contiguous block is convenient to the viscosity tube connector and is installed on the measurement bracket; If be not provided with bearing in the measurement bracket mounting hole, after measurement bracket is installed like this, during use, wall friction in measurement bracket and the mounting hole, this friction is sliding friction, the mounting hole inner wall abrasion is bigger, causes viscosity tube connector job insecurity, and influence is measured, after being set, bearing can avoid such defective, be rolling friction between bearing and the measurement bracket, friction force is little, and mounting hole inwall and measurement bracket wearing and tearing are little.

As preferably, the middle part of measurement bracket contiguous block upper surface is provided with the cable wire placement hole, measurement bracket contiguous block one side is provided with some cable wire fixed orifices, the cable wire fixed orifice is communicated with the cable wire placement hole, in the cable wire placement hole cable wire is housed, bolt screws in the cable wire fixed orifice cable wire is fixed, and the cable wire upper end connects the lever pulling apparatus, the lever pulling apparatus is fixed on the measurement bracket, also is with retracing spring on the measurement bracket between lever pulling apparatus and the measurement bracket contiguous block.The cable wire placement hole is convenient to the connection of cable wire, the cable wire upper end connects the lever pulling apparatus, by cable wire the viscosity tube connector is lifted, being convenient to the viscosity tube connector separates with viscosity tube, the cable wire fixed orifice is used for fixing cable wire, the lever pulling apparatus is fixed on the measurement bracket under the controller, the return that retracing spring between lever pulling apparatus and the measurement bracket contiguous block is used for the measurement bracket contiguous block is the return of viscosity tube connector, during viscosity tube connector return, it also is the process that viscosity tube is connected with the viscosity tube connector, it is the access of viscosity tube, the elastic force of retracing spring, making a concerted effort of the elastic force of Flexible Connector inner spring and viscosity tube connector three is the power of impelling viscosity tube to be connected with the viscosity tube connector, the breakage of this viscosity mouth of pipe of making a concerted effort to cause easily too greatly, making a concerted effort, it is tight to be connected or to seal between the viscosity tube joint on too little viscosity tube and the viscosity tube connector, causes the present invention can't operate as normal.

As preferably, viscosity meter also is installed on the described measurement bracket measures the position detent mechanism, a viscosity meter measurement position detent mechanism comprises measures a fixed head and the following position fixed head of measuring, and last measurement position fixed head and following the measurement are provided with the spacing column that can accurately locate upper and lower measurement position fixed head spacing between the fixed head of position.Spacing column is used for accurately controlling the upper and lower distance of measuring between the position, avoided upper and lower measurements position fixed head to install after, upper and lower variation of measuring distance between the position makes fixed distance between upper and lower measurements, has guaranteed the accuracy of measurement.

As preferably, on, following measurement position fixed head is all perpendicular to measurement bracket, and be located at respectively the viscosity tube carriage on, downside, measurement bracket is provided with set collar, the following lower surface contact set collar of measuring the position fixed head, bolt is connected and fixed to encircle with the following position fixed head of measuring and will descends a measurement position fixed head to fix, on, the following middle part of measuring the position fixed head is provided with coaxial through hole, insert respectively at the two ends of spacing column, the following measurement in the through hole at fixed head middle part, the middle part at spacing column two ends has the spacing column screw, bolt penetrates, the following through hole of measuring fixed head middle part, position, and screw in respectively in the spacing column screw at spacing column two ends.The upper and lower both sides of measuring the position fixed head respectively are provided with a measurement bracket through hole, last measurement position fixed head is coaxial with the measurement bracket through hole of measuring homonymy on the fixed head of position down, and the both sides of upper and lower measurement position fixed head also respectively are provided with one and are used for fixing the upper and lower fixing threaded hole of measuring the position fixed head; The measurement bracket through hole is used for upper and lower measurement position fixed head and is installed in measurement bracket, coaxial also being convenient to of the measurement bracket through hole of homonymy is installed on the measurement bracket, fixing threaded hole then is convenient to upper and lower the fixing of position fixed head of measuring, only need fix during installation upper and lower a measurements fixed head both one of; After a upper and lower measurement position fixed head was installed on measurement bracket, the auxiliary fixed head two ends, upper and lower measurements position of stablizing of measurement bracket made the more accurate of fixed distance between upper and lower measure and good stability; Upper and lower measurement position fixed head guarantees that all perpendicular to measurement bracket upper and lower measurement position fixed head is parallel, and the distance location accurately between the upper and lower measurement position; The upper and lower middle part of measuring the position fixed head has coaxial through hole, and the last through hole of measuring fixed head middle part, position is the I shape hole, and this top, I shape hole is the through hole on the cover plate, and the bottom is the up-small and down-big counterbore of diameter on the substrate; The following through hole of measuring fixed head middle part, position is the up big and down small stepped hole of diameter, this stepped hole top is the through hole on the cover plate, the bottom is the up big and down small counterbore of diameter on the substrate, the upper end of spacing column is inserted and is gone up the counterbore of measuring fixed head I shape through hole bottom, position, the top of measuring the step-like through hole of position fixed head is down inserted in the lower end of spacing column, spacing column just withstands between the fixed head of upper and lower measurement position like this, and spacing column just can accurately be controlled the upper and lower spacing of measuring the position.

As preferably; on; following measurement position fixed head one side is provided with the viscosity tube draw-in groove of U-shaped; on relative with this side; following measurement position another side of fixed head is provided with the fiber termination box draw-in groove; on; the following viscosity tube draw-in groove of measuring on the fixed head of position is coaxial with the U-shaped claw of viscosity tube carriage front end; and in the vertical direction forms viscosity tube placement passage; viscosity tube is positioned at this viscosity tube and places passage; on; the following fiber termination box draw-in groove of measuring on the fixed head of position is coaxial; and in the vertical direction formation fiber termination box placement passage, fiber termination box draw-in groove internal fixation has the fibre-optic fiber termination box of protection.The viscosity tube draw-in groove of U-shaped is convenient to putting into of viscosity tube, is beneficial to the detection of optical fiber, also can play a protective role to viscosity tube, and the groove bottom of circular arc is also little to the damage of viscosity tube; Fiber termination box can protect optical fiber injury-free, also plays the effect that increases aesthetics, and the fiber termination box draw-in groove is convenient to putting into of fiber termination box, and the fiber termination box draw-in groove is the square frame shape of a side opening, and such shape setting is in order to cooperate fiber termination box, and the square frame shape processing of opening is also convenient; Viscosity tube must keep vertical state during viscosity measurement, can guarantee the degree of accuracy measured like this, so the viscosity tube on the vertical direction is placed passage and can be satisfied viscosity tube and keep vertical demand.

As preferably, upper and lower measurement position fixed head is formed by substrate and cover plate, cover plate is located on the substrate, and pass through bolt with substrate, the upper surface of substrate is provided with the optical fiber draw-in groove, the optical fiber draw-in groove is arranged along the side of substrate, the termination of optical fiber draw-in groove is symmetrically set in respectively on viscosity tube draw-in groove and the fiber termination box draw-in groove inwall, in the optical fiber draw-in groove light transmitting fiber is housed, fibre-optic optical fiber head is symmetrically set on the viscosity tube draw-in groove inwall, the light transmitting fiber horizontal component is positioned at the optical fiber draw-in groove, and light transmitting fiber vertically part is positioned at fiber termination box, and is connected to controller.A upper and lower measurement position fixed head is square, and the upper and lower place, four end angles of measuring the position fixed head is provided with chamfering, the setting of chamfering avoid damaging operator or Other Instruments; Cover plate be provided with can protective substrate on optical fiber in the optical fiber draw-in groove, cover plate cover fixing after, also can increase a upper and lower aesthetics of measuring position fixed head outward appearance; Also cover plate can be set, directly be substrate; Substrate and cover plate be the one-piece construction for being formed by machine work all, and machine work is for can manufacturing, and processing cost is low, and the precision height, and the setting of optical fiber draw-in groove is to be convenient to putting into of measuring optical fiber; Fibre-optic optical fiber head is symmetrically set on the viscosity tube draw-in groove inwall, and this is convenient to the detection of optical fiber head to the sample liquid level; The follower head of optical fiber draw-in groove is symmetrically set on the fiber termination box draw-in groove inwall, and this is convenient to optical fiber and puts into fiber termination box, avoids interfering with other parts of viscosity meter; The turning point of optical fiber draw-in groove is arc-shaped slot, and all the other are the linear draw-in groove everywhere, and the width of arc-shaped slot is greater than the width of linear draw-in groove.Arc-shaped slot is convenient to the bending layout of optical fiber, guarantees that optical fiber can not bend too much and damage optical fiber, and the width of arc-shaped slot is bigger, and this provide extending space can for the bending of optical fiber, and is big to the optical fiber applicability of different thicknesses, is convenient to packing into smoothly of optical fiber.

The invention has the beneficial effects as follows: the setting of Flexible Connector, avoided the damage when the plug Capsule of traditional Capsule connected mode to viscosity tube, easy and simple to handle, time saving and energy saving, improved efficiency of measurement, Flexible Connector is made by teflon, corrosion resistance is strong, being provided with bearing in the measurement bracket mounting hole can avoid wall friction in measurement bracket and the mounting hole and cause the mounting hole inner wall abrasion, cause viscosity tube connector job insecurity, influence is measured, and has protected the measurement bracket mounting hole, has improved measuring stability; Spacing column connects and fixing upper and lower measurement position fixed head, and this can guarantee to locate accurately between the upper and lower measurement position, thereby has improved the precision of sample viscosity measurement; Upper and lower measurement position fixed head adopts mach mode to produce, and has reduced production cost, improves measuring accuracy of the present invention.

Description of drawings

Fig. 1 is a kind of main TV structure synoptic diagram of the present invention;

Fig. 2 is a kind of structural representation of facing of the present invention

Fig. 3 is a kind of main TV structure synoptic diagram of viscosity tube connector of the present invention;

Fig. 4 is a kind of vertical view of viscosity tube connector of the present invention;

Fig. 5 is the A-A cut-open view of Fig. 4;

Fig. 6 is the cut-open view of Flexible Connector among Fig. 4;

Fig. 7 is the cut-open view of connecting through hole among Fig. 4;

Fig. 8 is the rear view of Fig. 4;

Fig. 9 is a kind of structural representation of viscosity tube carriage of the present invention;

Figure 10 is a kind of structural representation of set collar of the present invention;

Figure 11 is a kind of main TV structure synoptic diagram that viscosity meter of the present invention is measured the position detent mechanism;

Figure 12 is a kind of sectional structure synoptic diagram of Figure 11;

Figure 13 is a kind of vertical view of going up the substrate of measuring the position fixed head among Figure 11;

Figure 14 is a kind of structural representation of measuring the substrate of position fixed head among Figure 11 down;

Figure 15 is a kind of structural representation of viscosity tube support of the present invention.

Among the figure: 1, viscosity tube, 2, the viscosity tube support, 3, the viscosity tube carriage, 31, the U-shaped claw, 32, the spacing column through hole, 4, measurement bracket, 41, retracing spring, 42, set collar, 421, fixing threaded hole, 422, connecting through hole, 5, controller, 51, liquid crystal display, 52, the valve seat mouth of pipe, 6, the viscosity tube connector, 61, the measurement bracket contiguous block, 611, bearing, 612, the cable wire placement hole, 613, the cable wire fixed orifice, 62, top board, 63, lower platen, 64, connecting through hole, 641, the top board through hole, 642, the lower platen through hole, 65, Flexible Connector, 651, sprocket hole, 652, hose adapter, 653, the viscosity tube joint, 654, spring, 655, silica gel sealing ring, 7, the lever pulling apparatus, 8, viscosity meter is measured position detent mechanism, 81, last measurement position fixed head, 82, following measurement position fixed head, 83, spacing column, 831, the spacing column screw, 84, the viscosity tube draw-in groove, 85, the fiber termination box draw-in groove, 86, substrate, 861, the optical fiber draw-in groove, 862, the substrate fixing threaded hole, 87, cover plate, 9, fiber termination box, 10, the measurement bracket mounting hole, 11, connect flexible pipe.

Embodiment

Below by specific embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.

Embodiment:

A kind of viscosity measuring instrument is (referring to accompanying drawing 1, accompanying drawing 2), comprise viscosity tube 1, viscosity tube support 2(accompanying drawing 15), viscosity tube carriage 3, measurement bracket 4, with controller 5, viscosity tube 5 is the Ubbelohde viscosity tube, be provided with the photoelectricity liquid level detection system in the controller 5, microcomputer automatic control system, data handling system, the testing result output unit, a complete set of pump and valve cell, controller 5 is fixed in measurement bracket 4 upper ends, on the measurement bracket 4 of controller 5 belows, be fixed with lever pulling apparatus 7 from top to bottom successively, viscosity tube connector 6 and viscosity meter are measured position detent mechanism 8, lever pulling apparatus 7 is a leverage movable up and down, viscosity tube connector 6(accompanying drawing 3, accompanying drawing 4, accompanying drawing 5) comprises pressing plate and measurement bracket contiguous block 61, pressing plate is positioned at measurement bracket 4 front sides, pressing plate comprises top board 62 and the lower platen 63 that size is identical, top board 62 and lower platen 63 are square, the front end of top board 62 and lower platen 63 all is provided with chamfering, the rear end of top board 62 lower surfaces is provided with a recess, the rear end of lower platen 63 upper surfaces is provided with a projection, recess on the top board 62 is with after projection on the lower platen 63 cooperates, top board 62 is superimposed with lower platen 63, two bolts insert and connect top board 62 and lower platen 63 in the screw, top board 62 and lower platen 63 are fixed together, top board 62 is provided with three connecting through holes 64, connecting through hole 64 runs through top board 62 and lower platen 63 simultaneously, connecting through hole 64(accompanying drawing 7) comprises top board through hole 641 and lower platen through hole 642, top board through hole 641 is for having the through hole of a step, and top board through hole 641 diameters are up-small and down-big, and the top of lower platen through hole 642 is counterbore, the bottom is a pilot hole, counter bore hole diameters is up big and down small, and the following hole of counterbore connects pilot hole top, and the diameter in hole equates with the pilot hole upper part diameter under the counterbore, pilot hole is horn-like opening, the medial surface of pilot hole is a cambered surface, and top board through hole 641 connects the counterbore on lower platen through hole 642 tops, in the counterbore space of top board through hole 641 and lower platen through hole 642 a Flexible Connector 65(accompanying drawing 6 is installed), Flexible Connector 65 has three, have sprocket hole 651 on the axis of Flexible Connector 65, Flexible Connector 65 is the boss shape, by last, in, three sections coaxial pipes that following diameter increases are successively formed, on, in, following three sections pipes are one, on, in two sections pipes form hose adapters 652, the hypomere pipe is a viscosity tube joint 653, spring 654 is enclosed within on the stage casing pipe of hose adapter 652, the lower surface of last end in contact top board through hole 641 steps of spring 654, be tightly connected the respectively liquid-feeding tube of Ubbelohde viscosity tube of three viscosity tube joints 653 that 641, three Flexible Connector 65 lower ends of top board through hole are stretched out in the upper surface of the following end in contact viscosity tube joint 653 of spring 654, the upper end of hose adapter 652, topping up pipe and evacuated tube, the hose adapter 652 of the liquid-feeding tube of connection Ubbelohde viscosity tube and two Flexible Connector 65 upper ends of evacuated tube is connected to and is connected flexible pipe 11, the other end of connection flexible pipe 11 is connected to two valve seat mouths of pipe 52 on the controller 5 respectively, and viscosity tube joint 653 bottoms are positioned at the counterbore of lower platen through hole 642, and the bottom of viscosity tube joint 653 has circular groove, silica gel sealing ring 655 is housed in the circular groove, the sidewall of circular groove is provided with a circle convex tendon, and the middle part of silica gel sealing ring 655 lateral surfaces is provided with the draw-in groove of a circle indent, the convex tendon clamping on this draw-in groove and the circular groove sidewall, the medial surface of silica gel sealing ring 655 is a spigot surface, spigot surface is horn-like opening, and viscosity tube joint 653 is connected with the ferrule of Ubbelohde viscosity tube upper end, and the trailing flank of top board 62 is connected with measurement bracket contiguous block 61, measurement bracket contiguous block 61 is one with top board 62, measurement bracket contiguous block 61 is square, and the place, four end angles of measurement bracket contiguous block 61 is provided with chamfering, the left side of measurement bracket contiguous block 61, right both sides respectively are provided with a measurement bracket mounting hole 10, measurement bracket mounting hole 10 run through measurement bracket contiguous block 61 on, following two ends, a bearing 611 is housed in each measurement bracket mounting hole 10, bearing 611 and measurement bracket mounting hole 10 interference fit, bearing 611 is enclosed within on the measurement bracket 4, the middle part of measurement bracket contiguous block 61 upper surfaces has cable wire placement hole 612, have three cable wire fixed orifice 613(accompanying drawings 8 that are linked to be a row on the trailing flank of measurement bracket contiguous block 61), cable wire fixed orifice 613 is communicated with cable wire placement hole 612, in the cable wire fixed orifice 613 cable wire is housed, three bolts screw in respectively in the cable wire placement hole 612 fixes cable wire, the upper end of cable wire is fixed on the lever pulling apparatus 7, is with retracing spring 41 on the measurement bracket 4 between lever pulling apparatus and the measurement bracket contiguous block 61, the upper end engagement lever pulling apparatus 7 of retracing spring 41, contact measurement support contiguous block 61 upper surfaces, lower end of retracing spring 41, set collar 42(accompanying drawing 10 on the measurement bracket contiguous block 61 lower surface contact measurement supports 4), the middle part of set collar 42 is a measurement bracket mounting hole 10, and set collar 42 right sides are provided with a connecting through hole 422, the outer shroud in set collar 42 left sides is provided with two fixing threaded holes 421, and it is fixing with measurement bracket contiguous block 61 with measurement bracket contiguous block 61 that bolt is connected and fixed ring 42; Measurement bracket contiguous block 61 belows are that viscosity meter is measured position detent mechanism 8(accompanying drawing 11, accompanying drawing 12), viscosity meter is measured position detent mechanism 8 and is comprised measurement position fixed head 81 and measure a fixed head 82 down, last measurement position fixed head 81 is parallel to measures position fixed head 82 down, and measure under being positioned at directly over the fixed head 82 of position, a last measurement position fixed head 81 and following fixed head 82 surfaces, position of measuring are burnishing surface, viscosity tube carriage 3 is fixed in to be measured on position fixed head 81 and the following measurement bracket of measuring between the fixed head 82 of position 4, viscosity tube carriage 3(accompanying drawing 9) middle part has spacing column through hole 32, last measurement position fixed head 81 and following the measurement between the fixed head 82 of position are provided with spacing column 83, spacing column 83 is a cylinder, spacing column about in the of 83 both ends of the surface be burnishing surface, on the spacing column 83, lower end has spacing column screw 831, on, the following middle part of measuring the position fixed head has coaxial through hole, the last through hole of measuring fixed head 81 middle parts, position is the I shape hole, the following through hole of measuring fixed head 82 middle parts, position is the up big and down small stepped hole of diameter, on the spacing column 83, lower end lays respectively at, the following measurement in the through hole at fixed head middle part, bolt penetrates, the following through hole of measuring fixed head middle part, position, and screw on the spacing column 83, in the spacing column screw 831 of lower end, to go up, following measurement position fixed head is fixed on the spacing column 83, on, following measurement position fixed head is square, on, the following place, four end angles of measuring the position fixed head is made as chamfering, on, the following middle part of measuring position fixed head front side edge has the viscosity tube draw-in groove 84 of U-shaped, on, viscosity tube draw-in groove 84 on the fixed head of following measurement position is on the same vertical curve with the U-shaped claw 31 of viscosity tube carriage 3 front ends, and in the vertical direction forms viscosity tube 1 placement passage, viscosity tube 1 is positioned at this viscosity tube 1 and places passage, on, the following middle part of measuring position fixed head back side edge has fiber termination box draw-in groove 85, fiber termination box draw-in groove 85 is the square frame shape of opening, on, the following fiber termination box draw-in groove of measuring on the fixed head of position 85 is on the same vertical curve, and in the vertical direction forms fiber termination box 9 placement passages, fiber termination box draw-in groove 85 internal fixation have the fibre-optic fiber termination box 9 of protection, on, following measurement position fixed head is the one-piece construction that is formed by machine work; Last measurement position fixed head 81 and the following position fixed head 82 of measuring are formed by substrate 86 and cover plate 87, cover plate 87 is located on the substrate 86, be equipped with the installation screw on substrate 86 and the cover plate 87, bolt connects cover plate 87 and substrate 86, cover plate 87 is fixed on the substrate 86, cover plate 87 and substrate 86 are covered, substrate 86(accompanying drawing 13, accompanying drawing 14) upper surface is furnished with optical fiber draw-in groove 861 along substrate 86 sides, two front ends of optical fiber draw-in groove 861 are symmetrically set on viscosity tube draw-in groove 84 inwalls, two follower heads of optical fiber draw-in groove 861 are symmetrically set on fiber termination box draw-in groove 85 inwalls, the turning point of optical fiber draw-in groove 861 is an arc-shaped slot, all the other are the linear draw-in groove everywhere, the width of arc-shaped slot is greater than the linear draw-in groove, in the optical fiber draw-in groove 861 light transmitting fiber is housed, fibre-optic optical fiber head is symmetrically set on viscosity tube draw-in groove 84 inwalls, the light transmitting fiber horizontal component is positioned at optical fiber draw-in groove 861, the vertical part of light transmitting fiber is positioned at fiber termination box 9, and be connected on the controller 5, each side be provided with a substrate fixing threaded hole 862 that is used for fixing substrate 86 on the substrate 86, the last I shape through hole top of measuring fixed head 81 middle parts, position is the through hole on the cover plate 87, and the bottom is the up-small and down-big counterbore of diameter on the substrate 86; The following step-like through hole top of measuring fixed head 82 middle parts, position is the through hole on the cover plate 87, the bottom is the up big and down small counterbore of diameter on the substrate 86, the upper end of spacing column 83 is inserted and is gone up the counterbore of measuring fixed head 81 I shape through hole bottoms, position, the top of measuring position fixed head 82 step-like through holes is down inserted in the lower end of spacing column 83, the following lower surface contact set collar 42 of measuring fixed head 82 substrate 86, bolt are connected and fixed and encircle 42 with measurement position fixed head 82 is fixing with a viscosity meter measurement detent mechanism 8 down.

Using method of the present invention is: three viscosity tube joints 653 of viscosity tube connector 6 bottoms are connected with three ferrules of Ubbelohde viscosity tube upper end respectively, the topping up pipe of Ubbelohde viscosity tube is placed on the U-shaped claw 31 of viscosity tube carriage 3, and be in the viscosity tube draw-in groove 84, viscosity tube 1 is by vertical being installed on the measurement bracket 4 like this, during measuring samples, need the present invention is positioned in the isoperibol, press the start button on the controller 5, the present invention starts working according to pre-set parameter automatically: program is opened the solenoid valve that is communicated with liquid-feeding tube makes the liquid level in the topping up pipe slowly rise, rise to the last liquid storage ball of topping up pipe about half until liquid level, next is automatic evacuation procedure, according to the parameter of setting, when the sample liquid level rises to half left and right sides of liquid storage ball, program is opened the solenoid valve of control topping up pipe emptying, and this solenoid valve is communicated with liquid-feeding tube, starts the emptying of topping up pipe, through opening the solenoid valve that is used for controlling evacuated tube after the default time-delay, finish evacuation procedure; After emptying is finished, be automatic measuring process, sample begins dripless ground and flows on the glass wall of topping up pipe, when the concave meniscus of sample passes through last detecting position, fiber optic detection system detects the change of signal, pick up counting, when the concave meniscus of sample passed through detecting position, fiber optic detection system detected the change of signal again, timing stops, controller is through data analysis, draws testing result and is presented on the liquid crystal display 51, and the result can be by Bluetooth transmission to computer; When changing test sample, press the operating rod of lever pulling apparatus 7, viscosity tube connector 6 is raised, viscosity tube connector 6 separates with the Ubbelohde viscosity tube, thereby taking out viscosity tube support 2 takes out the Ubbelohde viscosity tube, the viscosity tube 1 that again next one is equipped with sample is placed under the viscosity tube connector 6, the operating rod of lever pulling apparatus 7 comes up, under the effect of retracing spring 41, viscosity tube connector 6 advances downwards, elastic force at retracing spring 41, under the elastic force of Flexible Connector 65 inner springs 654 and viscosity tube connector 6 gravity threes' the force action, viscosity tube joint 653 is tightly connected with viscosity tube 1, can continue next step measurement.

Above-described embodiment is a kind of preferable scheme of the present invention, is not that the present invention is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.

Claims

1. viscosity measuring instrument, comprise viscosity tube (1), viscosity tube support (2), viscosity tube carriage (3), measurement bracket (4), and controller (5), controller (5) comprises the photoelectricity liquid level detection system, microcomputer automatic control system, data handling system, the testing result output unit, a complete set of pump and valve cell, it is characterized in that: viscosity tube connector (6) is installed on the described measurement bracket (4), viscosity tube connector (6) comprises pressing plate and the measurement bracket contiguous block (61) that is connected measurement bracket, described pressing plate is made up of top board (62) and lower platen (63), top board (62), lower platen (63) both one of connect measurement bracket contiguous block (61), pressing plate is provided with some running through, the connecting through hole of lower platen (64), Flexible Connector (65) is installed in the connecting through hole (64), the upper end of elasticity connection (65) is communicated with the valve seat mouth of pipe (52) on the controller (5), the lower end of Flexible Connector (65) connects viscosity tube (1), has sprocket hole (651) on the axis of Flexible Connector (65).

2. viscosity measuring instrument according to claim 1, it is characterized in that: connecting through hole (64) comprises top board through hole (641) and lower platen through hole (642), top board through hole (641) is for having the through hole of a step, the top of lower platen through hole (642) is counterbore, the bottom is a pilot hole, it is horn-like that pilot hole is, and top board through hole (641) connects the counterbore on lower platen through hole (642) top.

3. viscosity measuring instrument according to claim 1, it is characterized in that: Flexible Connector (65) comprises shape and is connected the hose adapter (652) that flexible pipe (11) matches, viscosity tube joint (653) and spring (654), Flexible Connector (65) top is hose adapter (652), Flexible Connector (65) bottom is viscosity tube joint (653), viscosity tube joint (653) connects viscosity tube (1), Flexible Connector (65) has three, two valve seat mouths of pipe (52) that are connected on the controller (5) in three Flexible Connectors (65), three hose adapters in top (652), whole Flexible Connector (65) is the boss shape.

4. viscosity measuring instrument according to claim 3, it is characterized in that: the lower end of viscosity tube joint (653) has circular groove, silica gel sealing ring (655) is housed in the circular groove, the medial surface of silica gel sealing ring (655) is a spigot surface, the sidewall of circular groove is provided with a circle convex tendon, the lateral surface of silica gel sealing ring (655) is provided with a circle draw-in groove, the convex tendon clamping on this draw-in groove and the circular groove sidewall.

5. viscosity measuring instrument according to claim 1, it is characterized in that: the lower surface of top board (62) is provided with recess, the upper surface of lower platen (63) is provided with the projection that cooperates with recess, top board (62) is superimposed with lower platen (63), one end of top board (62) is fixed with measurement bracket contiguous block (61), measurement bracket contiguous block (61) is provided with measurement bracket mounting hole (10), be provided with the bearing (611) that is used to install and measure support in the measurement bracket mounting hole (10), bearing (611) and measurement bracket mounting hole (10) interference fit.

6. viscosity measuring instrument according to claim 5, it is characterized in that: the middle part of measurement bracket contiguous block (61) upper surface is provided with cable wire placement hole (612), measurement bracket contiguous block (61) one sides are provided with some cable wire fixed orifices (613), cable wire fixed orifice (613) is communicated with cable wire placement hole (612), (612) are equipped with cable wire in the cable wire placement hole, bolt screws in the cable wire fixed orifice (613) cable wire is fixed, the cable wire upper end connects lever pulling apparatus (7), lever pulling apparatus (7) is fixed on the measurement bracket (4), also is with retracing spring (41) on the measurement bracket (4) between lever pulling apparatus (7) and the measurement bracket contiguous block (61).

7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described viscosity measuring instruments, it is characterized in that: viscosity meter also is installed on the described measurement bracket (4) measures position detent mechanism (8), viscosity meter is measured position detent mechanism (8) and is comprised measurement position fixed head (81) and the following position fixed head (82) of measuring, and last measurement position fixed head (81) and following the measurement are provided with the spacing column (83) that can accurately locate upper and lower measurement position fixed head spacing between the position fixed head (82).

8. viscosity measuring instrument according to claim 7, it is characterized in that: on, following measurement position fixed head is all perpendicular to measurement bracket (4), and be located at respectively viscosity tube carriage (3) on, downside, measurement bracket (4) is provided with set collar (42), the following lower surface contact set collar (42) of measuring position fixed head (82), bolt is connected and fixed ring (42) and will descends measurement position fixed head (82) to fix with the following position fixed head (82) of measuring, on, the following middle part of measuring the position fixed head is provided with coaxial through hole, insert respectively at the two ends of spacing column (83), the following measurement in the through hole at fixed head middle part, the middle part at spacing column (83) two ends has spacing column screw (831), bolt penetrates, the following through hole of measuring fixed head middle part, position, and screw in respectively in the spacing column screw (831) at spacing column (83) two ends.

9. viscosity measuring instrument according to claim 8; it is characterized in that: on; following measurement position fixed head one side is provided with the viscosity tube draw-in groove (84) of U-shaped; on relative with this side; following measurement position another side of fixed head is provided with fiber termination box draw-in groove (85); on; the following viscosity tube draw-in groove of measuring on the fixed head of position (84) is coaxial with the U-shaped claw (31) of viscosity tube carriage (3) front end; and in the vertical direction forms viscosity tube (1) placement passage; viscosity tube (1) is positioned at this viscosity tube (1) and places passage; on; the following fiber termination box draw-in groove of measuring on the fixed head of position (85) is coaxial; and in the vertical direction formation fiber termination box (9) placement passage, fiber termination box draw-in groove (85) internal fixation has protection fibre-optic fiber termination box (9).

10. viscosity measuring instrument according to claim 9, it is characterized in that: on, following measurement position fixed head is formed by substrate (86) and cover plate (87), cover plate (87) is located on the substrate (86), and pass through bolt with substrate (86), the upper surface of substrate (86) is provided with optical fiber draw-in groove (861), optical fiber draw-in groove (861) is arranged along the side of substrate (86), the termination of optical fiber draw-in groove (861) is symmetrically set in respectively on viscosity tube draw-in groove (84) and fiber termination box draw-in groove (85) inwall, the optical fiber draw-in groove is equipped with light transmitting fiber in (861), fibre-optic optical fiber head is symmetrically set on viscosity tube draw-in groove (84) inwall, the light transmitting fiber horizontal component is positioned at optical fiber draw-in groove (861), light transmitting fiber vertically part is positioned at fiber termination box (9), and is connected to controller (5).