CN2482682Y

CN2482682Y - Flow meter for fuel charger

Info

Publication number: CN2482682Y
Application number: CN 01244691
Authority: CN
Inventors: 俞震东; 刘忠彩
Original assignee: COAL MINE MACHINERY FACTORY WENZHOU CITY
Current assignee: Chen Geou
Priority date: 2001-07-06
Filing date: 2001-07-06
Publication date: 2002-03-20
Anticipated expiration: 2011-07-06

Abstract

The utility model relates to an tanker aircraft flowmeter for fuel tanker aircraft is equipped with four chambeies all around and has put the piston simultaneously in the organism, and each piston constitutes the linkage through connecting rod frame about and the roll round pin in arranging the logical groove of connecting rod frame in, and the roll round pin is connected through rotor plate and central pivot off-centre simultaneously. The distributing valve core connected to the central rotating shaft is matched with the machine body in a dynamic sealing mode, an oil inlet flow guide hole and an oil outlet flow guide hole are formed between the upper end face and the lower end face of the distributing valve core and the circumferential face of the corresponding side of the distributing valve core, the machine body on the cavity channel is provided with an oil passing channel, one end of the machine body is communicated with a cavity between the end cover and the piston, and the other end of the machine body is matched with an opening in. When the oil metering valve is used, the piston acts to rotate the distribution valve core and meter oil. The utility model discloses a part number is few, simple structure, and the measurement is accurate, and long-time performance can remain reliable and stable.

Description

The fuel charger flowmeter

Technical field: the utility model relates to a kind of flowmeter that is used for fuel charger.

Background technology: general flowmeter rotates distribution valve by the piston action in each cavity of being located at the body inner chamber and measures, original distribution spool is by butt-end packing between spring and pressing plate and the body, complex structure, the assembling trouble, and the pressure surge when opened and closed by oil gun influences, and spring also is easier to fatigue aging.The flowmeter of this structure after a period of time uses, reliability decrease, the performance of metering accuracy and reproducibility error is very unstable, makes metering inaccurate, influence is used.

Summary of the invention: the utility model is to solve existing flowmeter structure complexity, the problem that reliability is not high.The utility model comprises that the below is provided with the body and the loam cake of taking hydraulic fluid port out of provided thereon of oil-in, before the body inner chamber is provided with, after, a left side, right four cavities, each orifice is equipped with end cap outward, all be equipped with piston in each cavity, be positioned at the body level on, lower link frame direction is intersected, its two ends connect the piston at respective direction place respectively, two connecting rod rests all are provided with groove, roller bolt places groove, the upper end is connected with rotatable lamella one end of level, vertical central rotating shaft lower end connects the rotatable lamella other end, the central rotating shaft upper end then passes the loam cake upper surface, distribute spool to be connected on the central rotating shaft and and the body circumference motive seal cooperation of loam cake below, be provided with the oil-feed pod apertures that is communicated with the body inner chamber between one side lower surface of this distribution spool and the respective side periphery, be provided with between opposite side upper surface and the respective side periphery and be communicated with the fuel-displaced pod apertures that goes up cover cavity, be equipped with oily passage in the body of each cavity top, the one head is communicated with the end cap of respective side and the cavity between the piston, and the opening on the periphery of other end and distribution spool matches and constitutes rotary type distribution valve measurement structure.

Adopted newly-designed distribution spool, number of spare parts is reduced, designs simplification makes things convenient for process and assemble, and can avoid the influence of pressure surge, and in use the accuracy height can keep reliable and stable through long-time usability.

Further specify the utility model below in conjunction with drawings and Examples.

Description of drawings: Fig. 1 is the front view of embodiment;

Fig. 2 is the A-A cut-open view of Fig. 1;

Fig. 3 is the B-B cut-open view of Fig. 2;

Fig. 4 is the C-C cut-open view of Fig. 2.

Embodiment: as shown in the figure, oil-in 6 is established in body 5 belows, and the loam cake of being located on the body 53 is provided with oil-out 4.Body 5 inner chambers are provided with four cavities 10 all around, and each cavity is equipped with end cap 11 outward for 10 mouthfuls, all are equipped with piston 12 in the cavity 10.The last connecting rod rest 16 and lower link frame 17 directions that are positioned at body 5 levels are intersected, and its two ends connect the piston 12 at respective direction place respectively.Each connecting rod rest is all established groove 19, and roller bolt 18 places groove 19, and rotatable lamella 20 1 ends of upper end and level are connected, and vertical central rotating shaft 2 lower ends then are connected with rotatable lamella 20 other ends.The upper end of central rotating shaft 2 passes loam cake 3 upper surfaces, distributes spool 1 to be connected on the central rotating shaft 2 and and the body 5 circumference motive seals cooperation of loam cake 3 belows.Be provided with the oil-feed pod apertures 7 that is communicated with body 5 inner chambers between the one side lower surface of distribution spool 1 and the periphery of respective side, be provided with the fuel-displaced pod apertures 8 that is communicated with loam cake 3 inner chambers between the upper surface of opposite side and the respective side periphery.Be equipped with oily path 10 in the body 5 of each cavity 9 top, the one head is communicated with the end cap 11 of respective side and the cavity between the piston 12, and the opening on the periphery of other end and distribution spool 1 matches.In use, after oil enters the inner chamber of body 5 from oil-in 6, entered from the oil-feed pod apertures 7 of distributing spool 1 and to cross oily path 10 accordingly, situation is that the oily path 10 of mistake and the oil-feed pod apertures 7 in left side matches as shown in Figure 3.End cap 11 and the cavity between the piston 12 that oil enters this side again promote piston 12 to the right, and 12 right oil that make in this side cavity of pressing of right hand piston are gone out from oil-out 4 by the inner chamber that fuel-displaced pod apertures 8 enters loam cake 3 again.The lower link frame 17 that is connected with this piston 12 also is moved the piston of connecting rod rest 16 and connection thereof by roller bolt 18 when moving to right, and makes central rotating shaft 2 rotate and drive 1 rotation of distribution spool by rotor plate 20.A stroke of piston 12 can make distribution valve core 1 revolve and turn 90 degrees, and each piston 12 constantly action makes distribution spool 1 not stop to rotate oil measurement.The upper end that exposes at central rotating shaft 2 can connect display disc, is used for directly reading flow.

Present embodiment is covered with leather cup 13 and the soft piston of cavity 9 motive seals cooperation formation at piston 12, in that the course of action sealing is improved, has reduced the processing request to cooperating simultaneously like this.On end cap 11, present embodiment is that front end end cover is provided with handwheel 14, its hand wheel shaft 15 cross end cap 11 and and end cap 11 be sealed and matched.Be provided with like this is can conveniently adjust piston 12 strokes when calibration.

Claims

1, a kind of fuel charger flowmeter, comprise that the below is provided with the body and the loam cake of taking hydraulic fluid port out of provided thereon of oil-in, before the body inner chamber is provided with, after, a left side, right four cavities, each orifice is equipped with end cap outward, all be equipped with piston in each cavity, be positioned at the body level on, lower link frame direction is intersected, its two ends connect the piston at respective direction place respectively, two connecting rod rests all are provided with groove, roller bolt places groove, the upper end is connected with rotatable lamella one end of level, vertical central rotating shaft lower end connects the rotatable lamella other end, the central rotating shaft upper end then passes the loam cake upper surface, it is characterized by: distribute spool (1) to be connected that central rotating shaft (2) is gone up and and body (5) the circumference motive seal cooperation of loam cake (3) below, be provided with the oil-feed pod apertures (7) that is communicated with body (5) inner chamber between one side lower surface of this distribution spool (1) and the respective side periphery, be provided with the fuel-displaced pod apertures (8) that is communicated with loam cake (3) inner chamber between opposite side upper surface and the respective side periphery, be equipped with oily passage (10) in the body (5) of each cavity (9) top, the one head is communicated with the end cap (11) of respective side and the cavity between the piston (12), and the opening on the periphery of other end and distribution spool (1) matches and constitutes rotary type distribution valve measurement structure.

2, fuel charger flowmeter according to claim 1 is characterized by: be covered with leather cup (13) and the soft piston structure of cavity (9) motive seal cooperation formation at piston (12).

3, fuel charger flowmeter according to claim 1 and 2 is characterized by: end cap (11) is provided with handwheel (14), the hand wheel shaft (15) of handwheel (14) cross end cap (11) and and end cap (11) be sealed and matched.