CN202266356U

CN202266356U - Microcomputer high-precision gauging digital-display oil injection pump test bed

Info

Publication number: CN202266356U
Application number: CN201120388026XU
Authority: CN
Inventors: 王博
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-13
Filing date: 2011-10-13
Publication date: 2012-06-06
Anticipated expiration: 2021-10-13

Abstract

The utility model relates to a microcomputer high-precision gauging digital-display oil injection pump test bed, which belongs to the field of equipment for adjusting and verifying a diesel engine oil injection pump, and comprises an oil injector (9), an oil injection pump (7), a coupler (6), a motor (2), a variable-frequency speed adjuster (3) and an oil tank (10), which are installed on a stander (1) and are sequentially connected with one another, and the microcomputer high-precision gauging digital-display oil injection pump test bed is characterized in that: a flow-rate sensing device, a single chip (12) and a display device (13) are additionally arranged between the oil injector (9) and the oil tank (10), the upper part of the flow-rate sensing device is installed below an outlet of the oil injector (9), the other end of the flow-rate sensing device is connected with the oil tank (10) through an oil return pipe (11), and one side on the upper part of the flow-rate sensing device is respectively connected with the single chip (12) and the display device (13) through a cable. The microcomputer high-precision gauging digital-display oil injection pump test bed has advantages of simple structure, safety, reliability, high gauging precision, time and labor conservation and the like, realizes the precise gauging and in-time display of the oil volume of an oil injection pump, and has strong practicability.

Description

Micro computer highi degree of accuracy gauging digital display fuel injection pump tester

Technical field

Micro computer highi degree of accuracy gauging digital display fuel injection pump tester belongs to the diesel injection pump adjustment apparatus field with verification, is specifically related to a kind of fuel injection pump tester that can accurately measure and show the fuel injection quantity of Injection Pump.

Background technique

Fuel injection pump tester is to the equipment of diesel injection pump adjustment with verification, and at present, fuel injection pump tester adopts artificial visually examine's graduated cylinder and flow transducer to measure two kinds of methods automatically on the method for measurement of oil mass usually; Need use glass cylinder to collect oil spout repeatedly when using artificial visually examine's graduated cylinder method to measure, read oil mass then, manual calculation goes out the revolution fuel injection quantity; The method wastes time and energy, and need pour the oil in the graduated cylinder into fuel tank, inefficiency behind each reading; Diesel oil is stain easily, and manual observation cylinder scale during reading, and measuring accuracy is relatively poor; Though and use high power motor detection speed is accelerated, need to consume a large amount of electric energy; Moreover, improved working efficiency greatly though adopt flow transducer to measure automatically, on measuring, there is bigger difference to different flow transducers; Like one Chinese patent application number is the patent of invention " the automatic measuring test-bed of Injection Pump oil mass " of 200410010275.X; The sensor that adopts is a volumetric sensor, and the break-make of each solenoid valve can only be measured the oil mass of small capacity, when calculating the fuel injection quantity of Injection Pump; Must could improve the validity of data through the oil measurement of certain hour; Injection Pump oil spout intermittent work, the oil mass test does not have continuity and data can not in time show, and working efficiency is not high.

Summary of the invention

The technical problem that the utility model will solve is: overcome the deficiency of existing technology, the micro computer highi degree of accuracy gauging digital display fuel injection pump tester of timely measurement of a kind of Injection Pump oil mass and demonstration, measuring accuracy height, high working efficiency is provided.

The utility model solves the technological scheme that its technical problem adopted: this micro computer highi degree of accuracy gauging digital display fuel injection pump tester comprises oil sprayer, Injection Pump, coupling, motor, variable-frequency governor and the fuel tank that is installed in the frame top and connects successively; It is characterized in that: between described oil sprayer and fuel tank, set up flow sensor, single-chip microcomputer and display device; Flow sensor top is installed in below, oil sprayer outlet port; The other end connects fuel tank through return tube, and flow sensor top one side is respectively through cable connection single-chip microcomputer and display device.

Described flow sensor also comprises accurate fuel-quantity transducer, drain line, valve, cylinder, Returnning spring, oil pooling cylinder, upper bracket, weighing sensor, oil-collecting shell and lower support frame; Accurate fuel-quantity transducer top is suspended on the weighing sensor through upper bracket; The bottom lower support frame that is fixedly connected; Cylinder and Returnning spring are installed on the lower support frame, and the lower support frame outside is provided with the oil-collecting shell.The piston rod top of cylinder withstands on the valve, and Returnning spring hangs between lower support frame and the valve, and the fluid that makes cylinder when backing down valve, flow out is collected by the oil-collecting shell and passed through in the channel flow oil sump tank.

Described accurate fuel-quantity transducer comprises the oil pooling cylinder on top and the drain line of bottom, the oil pooling cylinder upper opening, and lower end UNICOM drain line, the outlet of the corresponding oil sprayer of oil pooling cylinder upper shed is installed, and the drain line lower end is through the hinge-coupled valve.Valve also leans on the elastic force sealing drain line lower end of Returnning spring in the drain line lower end through hinge-coupled.

Compared with prior art, the beneficial effect that the utility model had is:

1, simple structure, reliable performance through setting up flow sensor, single-chip microcomputer and display device, use accurate flow transducer and microcomputer the fuel injection quantity of Injection Pump is measured accurately and to be shown; The measuring accuracy of oil mass is high; And easy and simple to handle, data can promptly and accurately show, high working efficiency; Greatly the minimizing of degree manual operation, reduced labor intensity.

2, whole measuring phase diesel oil can be not contaminated; Can realize the accurate measurement of Injection Pump oil mass, need not the Injection Pump intermittent work, as long as diesel oil flows into accurate fuel-quantity transducer and just can in microcomputer, show the revolution fuel injection quantity; The rotating speed speed of motor can not influence measuring accuracy; Can save energy loss, practicability is stronger, can realize technology popularization on a large scale.

The oil measurement precision is high, and is easy and simple to handle, and automaticity is high; Whole measuring phase diesel oil can be not contaminated, can realize that the Injection Pump oil mass accurately measures, and data in time show; High working efficiency, the greatly minimizing manual operation of degree, the rotating speed speed of motor can not influence measuring accuracy; Can save energy loss, this model utility simple structure reliable performance can realize technology popularization on a large scale.

Description of drawings

Fig. 1 is the utility model connecting relation schematic representation.

Fig. 2 is the local enlarged diagram of the A part of the utility model Fig. 1.

Wherein: 1, frame 2, motor 3, variable-frequency governor 4, microcomputer 5, speed probe 6, coupling 7, Injection Pump 8, high-pressure oil pipe 9, oil sprayer 10, fuel tank 11, return tube 12, single-chip microcomputer 13, display device 14, accurate fuel-quantity transducer 15, drain line 16, valve 17, cylinder 18, Returnning spring 19, oil pooling cylinder 20, upper bracket 21, weighing sensor 22, oil-collecting shell 23, lower support frame.

Fig. 1～2nd, the most preferred embodiment of the utility model further specifies below in conjunction with 1～2 pair of the utility model of accompanying drawing:

Embodiment

With reference to accompanying drawing 1～2:

This micro computer highi degree of accuracy gauging digital display fuel injection pump tester; Comprise the oil sprayer 9, Injection Pump 7, coupling 6, speed probe 5, motor 2, variable-frequency governor 3, microcomputer 4 and the fuel tank 10 that are installed in frame 1 top and connect successively; Between oil sprayer 9 and fuel tank 10, set up flow sensor, single-chip microcomputer 12 and display device 13; Flow sensor top is installed in below, oil sprayer 9 outlet ports, and the other end connects fuel tank 10 through return tube 11, and flow sensor top one side is respectively through cable connection single-chip microcomputer 12 and display device 13; Single-chip microcomputer 12 connects with microcomputer 4 through cable respectively with display device 13 the other ends; Speed probe 5 is installed on the pto of motor 2, and speed probe 5 the other ends link with single-chip microcomputer 12 through cable and microcomputer 4, make tach signal to get in the microcomputer system in real time.

Flow sensor also comprises accurate fuel-quantity transducer 14, drain line 15, valve 16, cylinder 17, Returnning spring 18, oil pooling cylinder 19, upper bracket 20, weighing sensor 21, oil-collecting shell 22 and lower support frame 23; Accurate fuel-quantity transducer 14 tops are suspended on the weighing sensor 21 through upper bracket 20; The bottom lower support frame 23 that is fixedly connected; Cylinder 17 and Returnning spring 18 are installed on the lower support frame 23, and the piston rod top of cylinder 17 withstands on the valve 16, and Returnning spring 18 hangs between lower support frame 23 and the valve 16; Lower support frame 23 outsides are provided with oil-collecting shell 22, and oil-collecting shell 22 connects fuel tank 10 through return tube 11.

Accurate fuel-quantity transducer 14 comprises the oil pooling cylinder 19 on top and the drain line 15 of bottom, oil pooling cylinder 19 upper openings, and lower end UNICOM drain line 15, the outlet of the corresponding oil sprayer 9 of oil pooling cylinder 19 upper sheds is installed, and drain line 15 lower ends are through hinge-coupled valve 16.

As shown in Figure 1, oil sprayer 9 and accurate fuel-quantity transducer 14 corresponding installations can be installed the accurate fuel-quantity transducer 14 of a plurality of oil sprayers 9 and respective amount according to actual needs on Laboratory Furniture.

Working procedure is following:

When the utility model is started working, be installed in Injection Pump 7 on the worktable to oil sprayer 9 fuel feeding, the oil of oil sprayer 9 outlet ejections flows in the oil pooling cylinder 19 on accurate fuel-quantity transducer 14 tops of installing its underpart; After reaching the setting revolution, motor 2 stalls, the oil mass of ejection is measured by weighing sensor 21; And through cable signal is delivered to single-chip microcomputer 12, the revolution signal is also delivered to single-chip microcomputer 12 simultaneously, single-chip microcomputer 12 according in the computer program established; The quality of oil is promptly drawn the fuel injection quantity of revolution divided by revolution, and on display device 13, show, the oil mass data also are admitted in the microcomputer 4 thereupon; So that store and print; Can feed pressurized air in the cylinder 17 subsequently, the piston rod of cylinder 17 backs down valve 16, and the fluid in the oil pooling cylinder 19 flows out; The fluid that flows out is collected and is flowed back in the fuel tank 10 through return tube 11 by the oil-collecting shell 22 of lower support frame 23 belows, prepares next time and measures.

In addition; Motor 2 is connected in and obtains to measure needed rotating speed on the variable-frequency governor 3; Speed probe 5 is installed on the pto of motor 2; Can in time obtain the tach signal of motor 2, speed probe 5 links with single-chip microcomputer 12 through cable and microcomputer 4, makes tach signal to get in the microcomputer system in real time.

The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technological scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of the utility model technological scheme according to the technical spirit of the utility model.

Claims

1. micro computer highi degree of accuracy gauging digital display fuel injection pump tester; Comprise the oil sprayer (9), Injection Pump (7), coupling (6), motor (2), variable-frequency governor (3) and the fuel tank (10) that are installed in frame (1) top and connect successively; It is characterized in that: between described oil sprayer (9) and fuel tank (10), set up flow sensor, single-chip microcomputer (12) and display device (13); Flow sensor top is installed in below, oil sprayer (9) outlet port; The other end connects fuel tank (10) through return tube (11), and flow sensor top one side is respectively through cable connection single-chip microcomputer (12) and display device (13).

2. micro computer highi degree of accuracy gauging digital display fuel injection pump tester according to claim 1; It is characterized in that: described flow sensor also comprises accurate fuel-quantity transducer (14), drain line (15), valve (16), cylinder (17), Returnning spring (18), oil pooling cylinder (19), upper bracket (20), weighing sensor (21), oil-collecting shell (22) and lower support frame (23); Accurate fuel-quantity transducer (14) top is suspended on the weighing sensor (21) through upper bracket (20); The bottom lower support frame (23) that is fixedly connected; Lower support frame (23) is gone up cylinder (17) and Returnning spring (18) is installed, and lower support frame (23) outside is provided with oil-collecting shell (22).

3. micro computer highi degree of accuracy gauging digital display fuel injection pump tester according to claim 2; It is characterized in that: described accurate fuel-quantity transducer (14) comprises the oil pooling cylinder (19) on top and the drain line (15) of bottom; Oil pooling cylinder (19) upper opening; Lower end UNICOM drain line (15), the outlet of the corresponding oil sprayer of oil pooling cylinder (19) upper shed (9) is installed, and drain line (15) lower end is through hinge-coupled valve (16).