CN2109550U - General flow meter for oil filling machine - Google Patents

Abstract

The utility model relates to a general flow meter for oil filling machines, which belongs to a piston type flow meter with an amount adjusting device. The utility model adopts the structure with two cylinders, wherein, the inner included angle of the cylinders is 120 DEG and is vertical to a main shaft, three shaft lines intersect, and the lower end of the main shaft is provided with an active amount adjusting device which is composed of an eccentric sleeve shaft, a semicircular gear and a mandrel. A pair of matched gears is arranged on an upper cover, wherein, the inner diameters of the gears are identical, and the gears are mutually replaced. The flow meter has the advantages of simple and reasonable structure, beautiful appearance, high precision, long service life and convenient adjustment, and can be universally used in oil filling machines with various types.

Description

General flow meter for oil filling machine

The utility model belongs to a kind of piston liquid meter with flow adjuster, and metering is used when being mainly used in fuel charger can oil product.

Present domestic fuel charger all adopts four cylinder formula piston meters, can be divided into two types by the sealing means of its piston; A kind of is to adopt cup leather packing, is easy to wearing and tearing between this kind leather cup and the brass cylinder sleeve and the appearance leakage.Another kind is by doing mechanical seal between chrome faced smooth finish of cast-iron piston and the brass cylinder sleeve.Though this mode is more wear-resisting than leather cup, cause cylinder sleeve and piston to wear and tear mutually easily, occur can not repairing after the wearing and tearing, cause integral body to scrap.The matching parameter of flowmeter and letter disk counting is the variable of revolution.Flowmeter revolution variable with cup leather packing is 0.5 liter.Flowmeter revolution variable with mechanical seal is 0.57 liter.The letter disk counter difference of the fuel charger of cause two major types, the flowmeter that is matched with each letter disk counter is just different, so the flowmeter of two class fuel chargers can not be general mutually.And above-mentioned two class flowmeters all are to use the accent amount device of same structure principle to adjust the interior error of certain limit.Accent amount device is to adorn a cover valve piston in one group of big piston therein more, when big piston is up, the accent amount screw that is located at the cylinder cap place withstands valve piston and reduces metered volume, weak point is an internal leakage source at valve piston, and be prone to not return and can not accent amount or stuck big piston of valve piston, whole flowmeter can not be rotated.And can only do the decrement adjustment, be the accent amount device of passive-type.

The purpose of this utility model is exactly a kind of new flowmeter that designs at the deficiency of above-mentioned two class flowmeters, and it has simple in structure, and is wear-resisting durable.The parts, the part that damage can be repaired or be changed, and can be common to the fuel charger of above-mentioned two types.

The technical scheme that the utility model proposed is to adopt a kind of novel two cylinder formula piston meter.It is characterized in that: (1) adopts the structure of two metering cylinders, and the interior angle angle of two oil cylinder axis is 120 °, and perpendicular to spindle centerline, three axis must intersect.Owing to use two cylinder structures, reduced the member of two cylinders.Cylinder sleeve is with corrosion resistant plate edge system, and piston is with the corrosion resistant plate punching out and enclose engineering plastics and make encapsulant, makes its wear resistant corrosion resistant, and good seal performance.And rolling bearing is set, it is light and handy flexibly that it is rotated.Connecting rod, main shaft and other member also use stainless steel or copper product, and foundry goods such as housing aluminium alloy makes its wear resistant corrosion resistant, and be important light.Feature (2) is that initiatively accent amount device of a cover is set.The mandrel of this device is drawn above main shaft core hole, and the other end drives semi-circle gear and eccentric bushing below main shaft.The rotation mandrel just can change eccentric throw and directly adjust the stroke of metering piston, can do increment or decrement adjustment, thereby belong to active accent amount device.Feature (3) is at the main shaft output terminal one cover coupling gear set to be set.The revolution of main shaft output can be made speedup or the transmission of slowing down by the variation of gear set, makes it be matched with above-mentioned two big class fuel chargers.Gear set is made up of driving gear and driven gear, and the number of teeth ratio of two gears is 1:1.0667, and two gear internal diameters are identical, when needing conversion, as long as driving gear and driven gear transposition just can be reached.

Structural principle of the present utility model and working condition are illustrated by accompanying drawing.

Fig. 1 is the utility model side cutaway view;

Fig. 2 is the utility model vertical view.

Below in conjunction with accompanying drawing, further specify its structure and working condition.

The main structure of the utility model is made up of loam cake (1), housing (2), cylinder cap (3), base (4), oil cylinder lining (5), piston (6), connecting rod (7), eccentric block (8), main shaft (9), semi-circle gear (10), eccentric bushing (11), valve seat (12), distribution valve (13), mandrel (14), driving gear institutes such as (16).

Two metering cylinders (19,20) are arranged in the bottom of flowmeter, and the interior angle of two metering cylinders (19,20) axis is 120 °, and perpendicular to the center line of main shaft (9), and three axis must intersect.The oil cylinder lining (5) of metering cylinder is made with the corrosion resistant plate edge.Piston (6) forms with the corrosion resistant plate punching out.Between two pistons, accompany the seal (21) of making encapsulant with engineering plastics.To improve the need mill decay resistance of piston like this, and good airproof performance, an active accent amount device particularly is housed in the bottom of main shaft (9).Initiatively accent amount device is by mandrel (14), and semi-circle gear (11), eccentric bushing (10) and gear (17) constitute.Mandrel (14) is sleeved in the core hole of main shaft (9), and coaxial with main shaft (9).The bottom of mandrel (14) is fixed with a fine module gear (17).Gear (17) is meshed with semi-circle gear (11), and semi-circle gear (11) is fastened on the eccentric bushing (10), with mandrel (18) be concentric circles, eccentric bushing (10) is sleeved on again on the mandrel (18), the eccentric throw of eccentric bushing (10) is between 0.15～0.50 millimeter, when needs are adjusted, only need rotation mandrel (14), drive semi-circle gear (11) and then drive eccentric bushing (10) by gear (17) and rotate.Because the centre distance of mandrel (18) and mandrel (14) is fixing, must drivening rod (7) is front or rear when solid eccentric bushing (10) rotates moves, thereby reach the purpose of accent amount.

Principle of work is: shown in arrow, the pressure oil that oil pump is sent here, enter distribution cavity from the inlet of loam cake (1), enter or discharge oil cylinder by distribution valve (13) successively from valve seat (12), promote piston (6) to-and-fro movement and measure, promote eccentric block (8) by connecting rod (7) and make main shaft (9) rotation.Oil is discharged by the outlet that distribution valve (13) inner chamber enters housing (2) from valve seat (12).Driving gear (13) is contained in main shaft (9) upper end, drives driven gear (16) and does speedup or retarded motion and output revolutions.Initiatively accent amount device is need adjust time side in the precision of flowmeter to use, its principle of work is to twist mandrel (14) upper end, mandrel (14) is rotated, driving semi-circle gear (10) and eccentric bushing (11) rotates, the stroke that makes it to change eccentric throw and change piston (16), thus reach the purpose of accent amount.Locked motionless after the accent amount.

This kind flowmeter has simple and reasonable for structure, good looking appearance, precision height, long service life, easy to adjust, and the characteristics such as versatility is good can be matched with domestic various fuel charger, thereby have widely application value.

Claims (3)

1, the fuel charger universal flow, comprise loam cake (1), housing (2), cylinder cap (3), base (4), oil cylinder lining (5), piston (6), connecting rod (7), eccentric block (8), main shaft (9), it is characterized in that: the structure of flowmeter is a two cylinder structure, its two cylinders interior angle is 120 °, and perpendicular to main shaft (9), three axis must intersect, and in main shaft (9), the lower end is provided with one by mandrel (14), gear (17), semi-circle gear (11), and the active accent amount device that constituted of eccentric bushing (10), and a pair of coupling gear (15 is housed on loam cake (11), 16).

2, flowmeter as claimed in claim 1, it is characterized in that initiatively the mandrel (14) of accent amount device is in suit main shaft (9) the core hole, draw by top, core hole, and be fixed with a fine module gear (17) in the lower end of mandrel (14), gear (17) is meshed with semi-circle gear (11), semi-circle gear (11) is packed in the top of eccentric bushing (10) again, with mandrel (18) be concentric circles, and eccentric bushing is sleeved on the mandrel (18), and the eccentric throw of eccentric bushing (10) is between 0.1～0.5 millimeter.

3, as claim 1 and 2 described devices, it is characterized in that driving gear (15) is contained in main shaft (9) upper end, and driving gear (15) and driven gear than for the gear of (16) than being 1:10667, the internal diameter of two gears is identical.

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