CN2078869U

CN2078869U - Tank gage using filament wheel as floating body

Info

Publication number: CN2078869U
Application number: CN 89207774
Authority: CN
Inventors: 张慧玲; 张涵才
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-05-30
Filing date: 1989-05-30
Publication date: 1991-06-12

Abstract

The utility model relates to a liquid level measurer which is provided with a rotating wire wheel, and the wire wheel is arranged on a frame. One end of a steel wire winds and is fixed to the wire wheel, and the other end is connected with a floating body. A grooved wheel is rotatable and is arranged on a shaft which is fixed to the frame. One end of a constant force spring winds and is fixed to the grooved wheel, and the other end is fixed to the wire wheel. A dial plate and a fluted plate are fixedly arranged at one end of the shaft of the wire wheel, and the teeth of the fluted disc are engaged with a gear of a counter which is fixedly arranged on an upper plate of the frame. The floating body is arranged in a container. When the liquid level in the container rises, the floating body is operated by the buoyancy of the liquid and rises under the action of the constant force spring. The counter can directly display the height of the liquid level. The measurer has the advantages of simple structure and accurate and reliable liquid level display.

Description

Silk wheel buoyancy aid is directly pacified liquid level gauge

The utility model relates to a kind of buoyancy aid liquid level gauge, and it is widely used in the liquid level automatically-controlled continuous in the used containers of department such as oil, chemical industry, and its liquid level change can directly show on mechanical counter.

A kind of level gauging instrument that U.S. VAREC company produces as shown in Figure 1, this instrument is made up of these several main zero, parts of sprocket wheel 1, steel band storage wheel 2, constant force spring 3, stainless steel perforated steel ribbon 4, mechanical counter 5 and buoyancy aid 6.For guaranteeing measuring accuracy, very high to the required distance between perforated steel ribbon 4 each hole, also very high to the pitch requirement of sprocket wheel 1 each between cog, be difficult to reach designing requirement with general job operation, therefore, there is certain difficulty in this instrument in processing and manufacturing.

The purpose of this utility model is above-mentioned level gauging instrument is improved, and a kind of high-precision liquid level emasuring device of simple in structure, easy manufacturing is provided.

This liquid level emasuring device has a silk wheel, constant force spring and a buoyancy aid and a counter, its characteristics are, described silk wheel rotatable support is on a support, article one, an end of steel wire links to each other with described buoyancy aid, its other end kinking also is fixed on the described silk wheel, its other end kinking also is fixed on the sheave, this sheave be installed in rotation on one be fixed in described support the axle on, index dial and fluted disc are fixedly installed to an end of the axle of described silk wheel, a counter is fixedly installed to the side of described support, the tooth of described fluted disc and the engagement of the transmission gear of counter.

The course of work of this liquid level emasuring device is as follows:

The support of measurement mechanism is installed on the framework of container outside, buoyancy aid is placed container, at this moment, the suffered gravity of buoyancy aid by function of wire on the silk wheel, the tensile force of constant force spring also acts on the silk wheel, and above-mentioned gravity is a bit larger tham above-mentioned tensile force, when in the container liquid being arranged, buoyancy aid liquid body buoyancy, this buoyant equilibrium have fallen the part of the suffered gravity of buoyancy aid, at this moment, above-mentioned tensile force is a bit larger tham or equals making a concerted effort of above-mentioned gravity and buoyancy, the silk wheel clockwise rotates under the effect of above-mentioned tensile force, and this rotation is passed to counter by fluted disc and transmission gear, demonstrates liquid level on counter.

Liquid level emasuring device of the present utility model is than the remarkable advantage that has with the fluid level measuring instrument epiphase of above-mentioned prior art, it has saved perforated steel ribbon and the sprocket wheel that is difficult to processing and manufacturing, this has not only reduced manufacturing cost, and simplify the structure, in addition, this device can add an error correction values according to the error of reality processing silk wheel, makes it have higher measuring accuracy.

Fig. 1 is the synoptic diagram of the level gauging instrument of prior art;

Fig. 2 is the front view with broken section of the utility model liquid level emasuring device;

Fig. 3 is the side view of device shown in Figure 2.Below, in conjunction with the accompanying drawings an embodiment of the present utility model is described in detail.

Shown in Fig. 2 and 3, the garden dish 16 of silk wheel 4 one ends assembling tape spool 26, the other end are packed into and assembled another garden dish 17 again behind the baffle plate 19, and be with screw 18 that garden dish 17 and axle 10 is fixing.Axle 10 is passed the hole 36 of plate 35, in advance pad teflon cover 37 in the hole.With screw 38, counter 39 (outsourcing piece) is loaded on the plate 35.Axle sleeve 11 and axle 10 are carried out press fit.On axle sleeve 11, put into the fluted disc 5 of buckle 6, the aperture on the index dial 17 is inserted in the hook 6, be enclosed within on the index dial 1, compress with screw 9 with trim ring 8.The reverse side of fluted disc 5 has tooth 12, drive discontinuously during rotation first be 4 teeth second be the spider gear 13 of octadentate, gear 13 drives a counters gear teeth 14.Plate 35 usefulness electric welding 40 are in base plate 21, and plate 22 also electric welding 41 constitutes support on base plate 21.The dress people is equipped with sheave 43 with the axle 49 of hexagonal on the axle 49 in plate 35.Sheave 48 is made up of

plate washer

20,47 and axle sleeve 46.On the sheave 48 around on constant force spring 2.Outer Kong Yusi wheel 4 on the spring is fixing, loads onto opening ring washer 42 in the end of axle 49.When being housed in the hole of plate 22 for the debugging instrument, screw 23 that teflon axle sleeve 27 loads onto axle 26 plate 22 uses.Make end plate screwing 24 screw in screws 23 and make temporary transient location usefulness, the commentaries on classics that the silk wheel is not stopped, square hole 25 is inserted in the axle 26 head square shafts silk wheel that rotates to be used.On

plate

35,21 each limit,

cushion sealing material

28,30, outer cover 29 is fixing respectively.Sight glass 43 is sticked on the counter cover 42, counter cover 42 is fixed on the plate 35.One of steel wire 15 is worn 44 li of the apertures of people's silk wheel 4, and tie a knot 45, locate, the other end is fixed on little 32 with screw 31, puts into corrosion resistant plate 34, polyfoam 3 in advance on little 32, puts into corrosion resistant plate 33 again.

This instrument can add an error correction values according to the error of reality processing silk wheel, and the silk wheel 4 that promptly whenever circles is 300 millimeters, if error is that Δ L and the required range of container are L, then actual range is L ± L/300 Δ L.

The reality of Δ L is determined, can adopt the scale that detects through national length metering unit, measures the 300n millimeter, and (n be that the silk wheel is gone up the number of turns) takes turns on 4 around silk, and an end is digital changing value on the read-out counter fixedly, can on average calculate the error delta L of 300 millimeters on every circle.

Claims

1, a kind of wheel buoyancy aid value peace liquid level gauge is to have a silk wheel, a constant force spring, a buoyancy aid, a counter, it is characterized in that described silk wheel is rotatably supported on the support, article one, an end of steel wire links to each other with described buoyancy aid, the other end twines and is fixed on the described silk wheel, one end of described constant force spring is fixed on the described silk wheel, the other end twines and is fixed on the sheave, this sheave be rotatably supported in one be fixed on described support the axle on, index dial and fluted disc are fixedly installed to an end of the axle of described silk wheel, a counter is installed in a side of described support, the tooth of described fluted disc and the engagement of the transmission gear of counter.

2, liquid level gauge as claimed in claim 1 is characterized in that, an outer cover is installed on the described support, and there is sealing gasket at the contacted position of this cover and support, on the counter cover sight glass is housed.

3, liquid level gauge as claimed in claim 1 is characterized in that, an end plate upper aperture is inserted in axle and is used for rotating the silk wheel, so that this measurement mechanism is debugged.