CN212458479U

CN212458479U - Single oil way fuel flow measuring device

Info

Publication number: CN212458479U
Application number: CN202021770368.3U
Authority: CN
Inventors: 安军; 付云飞; 安晓书; 姜娅薇; 王素英
Original assignee: Guizhou Yaheng Automation Technology Co ltd
Current assignee: Guizhou Yaheng Automation Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-02-02
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a single oil circuit fuel flow measuring device belongs to lubricating oil annex detection technical field, including box and worm wheel flowmeter, the common fixedly connected with sleeve pipe of the upper and lower both ends inner wall of box, the oil drain has been seted up to sheathed tube right-hand member downside, the upper end left side fixedly connected with of box advances oil pipe, it passes the lateral wall of box and extends to in the sleeve pipe to advance oil pipe's one end, the upper end right side inner wall fixedly connected with of box goes out oil pipe, the upper end that goes out oil pipe pass the lateral wall of box and with worm wheel flowmeter's feed liquor end flange fixed connection, the lower extreme fixedly connected with coupling hose that goes out oil pipe. The utility model discloses, can make the oil pressure of test oil remain stable when measuring the fuel flow, the liquid level altitude variation in the fuel feeding oil tank can not exert an influence to the oil pressure in the pipe-line system moreover, the effectual degree of accuracy of measuring the fuel flow that has improved.

Description

Single oil way fuel flow measuring device

Technical Field

The utility model relates to a lubricating oil annex detects technical field, especially relates to a single oil circuit fuel flow measuring device.

Background

An aircraft engine is a highly complex and precise thermal machine, as the heart of an aircraft, a lubricating oil accessory used on the aircraft engine is one of the most main accessories on the aircraft engine, an oil pump is driven by the engine to provide sufficient lubricating oil for the whole engine so as to ensure the normal lubricating requirement of the engine, the oil pump used on the aircraft engine is a component which is finely processed and has a complex manufacturing process, and strict tests are required on a test bench when the aircraft engine leaves a factory Temperature measuring devices (temperature transmitters) and the like.

At present, the worm wheel flowmeter that detects flow installs on pipe-line system, but the test oil pressure that directly flows out in the oil collecting tank is not stable enough, and then makes the data of flowmeter measurement have certain error to test oil liquid level height in the oil collecting tank also can produce certain influence to the oil pressure in the pipe-line system.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art and directly flowing out in the oil collecting tank test oil pressure not stable enough, and then make the data of flowmeter measurement have certain error to test oil liquid level in the oil collecting tank highly also can produce the problem of certain influence to the oil pressure in the pipe-line system, and a single oil circuit fuel flow measuring device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a single oil circuit fuel flow measuring device, includes box and worm wheel flowmeter, the common fixedly connected with sleeve pipe of the upper and lower both ends inner wall of box, the oil drain port has been seted up to sheathed tube right-hand member downside, the upper end left side fixedly connected with of box advances oil pipe, it passes the lateral wall of box and extends to in the sleeve pipe to advance the one end of oil pipe, the upper end right side inner wall fixedly connected with of box goes out oil pipe, go out oil pipe's upper end pass the lateral wall of box and with worm wheel flowmeter's feed liquor end flange fixed connection, go out oil pipe's lower extreme fixedly connected with coupling hose.

Preferably, the sleeve pipe slides in and is sleeved with the piston, the center of the piston is slidably sleeved with the pipe wall of the oil inlet pipe through a round hole, the upper end of the piston is symmetrically and fixedly connected with two springs, the upper ends of the springs are fixedly connected with the inner wall of the upper end of the box body, the lower end of the piston is fixedly connected with a rubber plate, the center of the rubber plate is slidably sleeved with the pipe wall of the oil inlet pipe through a through hole, the upper end of the box body is fixedly connected with an inverted L-shaped pipe, and one end of the horizontal part of the L-shaped pipe is fixedly connected with the upper side of.

Preferably, a sealing ring is fixedly connected in the round hole on the piston, and the inner side of the sealing ring is in sliding sleeve connection with the pipe wall of the oil inlet pipe.

Preferably, the guide rod of vertical fixedly connected with rectangle structure in the box, the direction sliding sleeve has been cup jointed in the pole wall of guide rod to the slip, the horizontal fixedly connected with pipe in front side of direction sliding sleeve, the right-hand member mouth of pipe department and coupling hose's one end fixed connection, two floater of symmetry fixedly connected with on the upper end pipe wall of pipe, two balancing weights of symmetry fixedly connected with on the lower extreme pipe wall of pipe.

Preferably, a filter plate is fixedly connected in an oil discharge port on the sleeve.

Compared with the prior art, the utility model provides a single oil circuit fuel flow measuring device possesses following beneficial effect:

1. this single oil circuit fuel flow measuring device, advance the oil pipe through what be equipped with, advance the oil pipe and be connected with the end that produces oil of gathering oil tank, experimental oil enters into the cover intraductal through advancing the oil pipe, the intraductal experimental oil of cover passes the filter and enters into the box, when the intraductal oil pressure of oil feed is unstable, experimental oil extrusion piston drives rubber slab and sealing ring and removes, extrusion spring shrink when the piston removes, can increase the intraductal pressure that is located the piston below of cover during the spring shrink, and then can make the play oil that can be balanced in the sleeve, and the inside structure of sleeve pipe can hold the experimental oil of many plays when the oil pressure is great, the oil pressure is comparatively stable when making the measurement fuel flow, the measured value that does not.

2. This single oil circuit fuel flow measuring device, through the floater that is equipped with, when the liquid level in the box increases, fluid produces buoyancy to the floater and drives the pipe and rises, make the mouth of pipe department of pipe be located the certain degree of depth in experimental oil liquid level below after the pipe rises, the floater also descends thereupon when the page height descends, and then makes the pipe be in certain degree of depth in the experimental oil all the time, make the oil pressure in the pipe remain stable, do not change along with the change of experimental oil liquid level position, the degree of accuracy of measuring the fuel flow has been increased.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses, can make the oil pressure of experimental oil remain stable when measuring fuel flow, the liquid level altitude variation in the fuel feeding oil tank can not exert an influence to the oil pressure in the pipe-line system moreover, the effectual degree of accuracy that has improved the measurement fuel flow.

Drawings

Fig. 1 is a schematic structural view of a single oil path fuel flow measuring device provided by the present invention;

fig. 2 is the utility model provides a sheathed tube inner structure schematic diagram in single oil circuit fuel flow measuring device.

In the figure: the device comprises a box body 1, a sleeve pipe 2, a guide rod 3, a guide sliding sleeve 4, a guide pipe 5, a connecting hose 6, a floating ball 7, a worm wheel flowmeter 8, a balancing weight 9, an oil inlet pipe 10, an L-shaped pipe 11, a filtering plate 12, a rubber plate 13, a piston 14, a spring 15, a sealing ring 16 and an oil outlet pipe 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a single oil path fuel flow measuring device comprises a box body 1 and a worm wheel flowmeter 8, wherein the inner walls of the upper and lower ends of the box body 1 are fixedly connected with a sleeve 2, the lower side of the right end of the sleeve 2 is provided with an oil discharge port, a filter plate 12 is fixedly connected in the oil discharge port on the sleeve 2, the left side of the upper end of the box body 1 is fixedly connected with an oil inlet pipe 10, one end of the oil inlet pipe 10 penetrates through the side wall of the box body 1 and extends into the sleeve 2, the inner wall of the right side of the upper end of the box body 1 is fixedly connected with an oil outlet pipe 17, the upper end of the oil outlet pipe 17 penetrates through the side wall of the box body and is fixedly connected with a liquid inlet end connecting flange of the worm wheel flowmeter 8, the lower end of the oil outlet pipe 17 is fixedly connected with a connecting hose 6, a guide rod, the right end mouth of pipe department and the one end fixed connection of coupling hose 6 of pipe 5, two floater 7 of symmetry fixedly connected with on the upper end pipe wall of pipe 5, two balancing weights 9 of symmetry fixedly connected with on the lower extreme pipe wall of pipe 5.

The piston 14 is slidably sleeved in the sleeve 2, the center of the piston 14 is slidably sleeved with the pipe wall of the oil inlet pipe 10 through a circular hole, two springs 15 are symmetrically and fixedly connected to the upper end of the piston 14, the upper ends of the two springs 15 are fixedly connected with the inner wall of the upper end of the box body 1, a rubber plate 13 is fixedly connected to the lower end of the piston 14, the center of the rubber plate 13 is slidably sleeved with the pipe wall of the oil inlet pipe 10 through a through hole, an inverted L-shaped pipe 11 is fixedly connected to the upper end of the box body 1, a sealing ring 16 is fixedly connected to one end of a horizontal part of the L-shaped pipe 11 and the circular hole in the upper side of the right end of the sleeve 2 and.

In the utility model, when in use, the oil inlet pipe 10 is connected with the oil outlet end of the oil collecting tank (not shown in the figure), the test oil enters the sleeve 2 through the oil inlet pipe 10, the test oil in the sleeve 2 passes through the filter plate 12 and enters the box body 1, when the oil pressure in the oil inlet pipe 10 is unstable, the test oil extrudes the piston 14 to drive the rubber plate 13 and the sealing ring 16 to move, the extrusion spring 15 shrinks when the piston moves, the pressure below the piston 14 in the sleeve 2 can be increased when the spring 15 shrinks, and further the oil can be evenly discharged in the sleeve 2, and the structure in the sleeve 1 can contain more test oil when the oil pressure is larger, so that the oil pressure is more stable when measuring the fuel flow, the measured value of the flow measuring device is not influenced, when the liquid level in the box body 1 is increased, the oil generates buoyancy to the floating ball 7 to drive the guide pipe 5 to rise, after the guide pipe 5 rises, the pipe orifice of the guide pipe 5 is positioned at a, when the height of the page is reduced, the floating ball 7 is also reduced, so that the guide pipe 5 is always positioned in the test oil to a certain depth, the oil pressure in the guide pipe 5 is kept stable and does not change along with the change of the liquid level position of the test oil, and the accuracy of measuring the fuel flow is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a single oil circuit fuel flow measuring device, includes box (1) and worm wheel flowmeter (8), its characterized in that, the common fixedly connected with sleeve pipe (2) of the upper and lower both ends inner wall of box (1), the oil drain port has been seted up to the right-hand member downside of sleeve pipe (2), the upper end left side fixedly connected with of box (1) advances oil pipe (10), the lateral wall that advances oil pipe (10) is passed box (1) and is extended to in sleeve pipe (2), the upper end right side inner wall fixedly connected with of box (1) goes out oil pipe (17), the upper end that goes out oil pipe (17) pass the lateral wall of box and with the feed liquor end flange fixed connection of worm wheel flowmeter (8), the lower extreme fixedly connected with coupling hose (6) that goes out oil pipe (17).

2. The single oil path fuel flow measuring device according to claim 1, wherein a piston (14) is slidably sleeved in the sleeve (2), the center of the piston (14) is slidably sleeved with the wall of the oil inlet pipe (10) through a circular hole, two springs (15) are symmetrically and fixedly connected to the upper end of the piston (14), the upper ends of the two springs (15) are fixedly connected to the inner wall of the upper end of the box (1), the lower end of the piston (14) is fixedly connected with a rubber plate (13), the center of the rubber plate (13) is slidably sleeved with the wall of the oil inlet pipe (10) through a through hole, an inverted L-shaped pipe (11) is fixedly connected to the upper end of the box (1), and one end of the horizontal part of the L-shaped pipe (11) is fixedly connected to the upper side of the right end of the sleeve (2).

3. The single-oil-way fuel flow measuring device according to claim 2, wherein a sealing ring (16) is fixedly connected in the round hole of the piston (14), and the inner side of the sealing ring (16) is slidably sleeved with the wall of the oil inlet pipe (10).

4. The single-oil-way fuel flow measuring device according to claim 1, characterized in that a guide rod (3) of a rectangular structure is vertically and fixedly connected in the box body (1), a guide sliding sleeve (4) is slidably sleeved on a rod wall of the guide rod (3), a guide pipe (5) is transversely and fixedly connected to the front side of the guide sliding sleeve (4), a right end pipe orifice of the guide pipe (5) is fixedly connected with one end of a connecting hose (6), two floating balls (7) are symmetrically and fixedly connected to an upper end pipe wall of the guide pipe (5), and two balancing weights (9) are symmetrically and fixedly connected to a lower end pipe wall of the guide pipe (5).

5. A single-circuit fuel flow measuring device according to claim 1, characterized in that a filter plate (12) is fixedly connected to the inside of the oil discharge port of said sleeve (2).