CN2440959Y - Separate hydraulic membrane metering pump - Google Patents

Abstract

The utility model discloses a separate hydraulic driving membrane metering pump. A box body part and a cylinder body part are made separately and are connected mutually by a correct positioning. Different materials are adopted, so the utility model has the advantages of simple processing technique, low manufacture cost, smooth and neat cylinder diameter, wear resistance, high metering accuracy, low operating condition noise, long service life, convenient maintenance, etc. The utility model is a mechanical metering pump with higher practicability.

Description

Split type hydraulic driving diaphragm metering pump

The utility model belongs to the mechanical metering pump of carrying liquid medium.

Metering pump is environmental protection, electric power, beverage, food, chemical industry, industries such as medicine, the important corollary equipment of the additive (liquid phase) that extensively adopts.The quality of metering pump comprises measuring accuracy, delivery pressure etc., all will directly affect the quality of product that main frame is produced.

The metering pump of prior art, produce as Chinese Chongqing, Cixi, Shenyang metering pump factory etc., all are products of the imitated former Soviet Union, this series products exists that body heaviness, complex structure, measuring accuracy are low, deficiency such as leakage easily under the operating mode, and U.S. Mi Dunluo (MILTON ROY) this class metering pump that company produced, exist complex structure equally, the processing technology difficulty is big, the high deficiency of manufacture cost.The disclosed name of Chinese patent is called " directly controlled type diaphragm metering pump ", application number is 98215456.9, and name is called " mechanical diaphragm formula metering pump ", and application number is 98215295.7, is the product of imitated U.S. Mi Dunluo company, they are because the integrality of casing and cylinder body, and still exist casting and the gold machining difficulty big, it is difficult that machining accuracy guarantees, and yield rate is low, the operating mode noise is big, and manufacture cost is higher relatively; And because the material of cylinder part and the integral cast of casing part is gray cast iron (HT200), thus cylinder part especially its cylinder diameter very easily wear and tear, thereby its working life is shorter relatively, measuring accuracy is difficult to assurance.

The purpose of this utility model just is to make improvements at prior art, and it is convenient relatively to improve a kind of casting, gold machining, manufacture cost is relatively low, and cylinder diameter is not easy to wear, and working life is longer relatively, the diaphragm metering pump that measuring accuracy easily guarantees is to overcome the deficiency of prior art.

The purpose of this utility model is achieved by the following technical programs.It still has the drive part that comprises motor, motor joining plate, half-coupling, elastomer and electric machine support etc.; With the casing part that comprises casing, worm screw, bearing, link pin, worm-wheel shaft, axle sleeve, connecting rod and worm gear etc.; And comprise the cylinder part of plunger, cylinder body, graduated scale, adjusting screw rod, adjusting knob, indicator panel, adjusting nut, sealing plate and controlling rod etc.; And comprising pump head shell, barrier film fixed tray, diaphragm, outlet valve, inlet valves etc. are in interior pump head part.And said cylinder part and casing part by being located at the round boss on the cylinder body end face, are located with the circular blind hole that is located on the casing, and link by screw.

The utility model compared with the prior art, its volume is little, particularly because casing part and cylinder part have been realized the split configuration links, this just selects the material of suitable its operating technology requirement for use to cylinder part, created condition.And because cylinder part of the present utility model has adopted high-abrasive material, thereby it is easy to process, and low cost of manufacture, cylinder diameter polishing, not easy to wear, the measuring accuracy height, the operating mode noise is little, and characteristics such as long service life and maintaining convenience are conspicuous.It has higher Practical significance.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is plan view of the present utility model, and 33 for holding in both hands oil-hole plug shown in the figure;

Fig. 2 is the B-B partial sectional view of Fig. 1, and 6 is spring shown in the figure, and 7 is the ball valve core, and 31 are the oil-feed stopple, and 32 is oil sealing;

Fig. 3 is the A-A sectional view of Fig. 2, and 23 for adjusting pad shown in the figure.

See also accompanying drawing 1,2,3.The utlity model has and comprise motor 1, motor joining plate 2, half-coupling 3, elastomer 4, electric machine support 5 grades are in interior drive part I; With comprise casing 17, worm screw 18, bearing 19, link pin 20, worm-wheel shaft 21, axle sleeve 22, connecting rod 24, worm gear 25 grades are in interior casing part II, and comprise plunger 15, cylinder body 16, graduated scale 8, adjusting screw rod 9, adjusting knob 10, indicator panel 11, adjusting nut 12, sealing plate 13 and controlling rod 14 etc. are in interior cylinder part III, and comprise pump head shell 28, barrier film fixed tray 29, diaphragm 30, outlet valve 26, inlet valve 27 grades are in interior pump head part IV, and said cylinder part III and casing part II, by being located at the round boss 16-1 on cylinder body 16 end faces, with the circular blind hole 17-1 location (promptly being commonly called as " Si Bike " location) that is located on the casing 17, and fixedly connected by screw 16-2.The assembly relation of the utility model each several part sees also accompanying drawing 1,2 and 3.

Exemplary embodiments of the present utility model is: the material of casing 17 adopts HT200 gray cast iron, and the material of cylinder body 16 adopts the HQ60-2 magnesium iron.With flow 50L/H, the utility model of pressure 2.5Pma is an example, and it is located at the round boss 16-1 on cylinder body 16 end faces, and the assembling diameter mutual with being located at circular blind hole 17-1 on the casing 17 is Φ 110mm.

Output metering of the present utility model and pressure, when reality is used, can be as requested, and add the instrument and apparatus such as flowmeter, pressure gauge, safety valve of equipment by means of additive, by turn adjusting knob 10, drive graduated scale 8 (comprising flow control bar 14), and set specified output flow of the present utility model and pressure.

Claims (1)

1, a kind of split type hydraulic driving diaphragm metering pump, it has the motor of comprising (1), motor joining plate (2), half-coupling (3), elastomer (4), and electric machine support (5) is in interior drive part (I); With comprise casing (17), worm screw (18), bearing (19), link pin (20), worm-wheel shaft (21), axle sleeve (22), connecting rod (24), worm gear (25) is in interior casing part (II), and comprise plunger (15), cylinder body (16), graduated scale (8), adjusting screw rod (9), adjusting knob (10), indicator panel (11), adjusting nut (12), sealing plate (13) and controlling rod (14) are in interior cylinder part (III), and comprise pump head shell (28), barrier film fixed tray (29), diaphragm (30), outlet valve (26), inlet valve (27) is in interior pump head part (IV), it is characterized in that, said cylinder part (III) and casing part (II), by being located at the round boss (16-1) on cylinder body (16) end face, with circular blind hole (17-1) location that is located on the casing (17), and fixedly connected by screw (16-2).