CN201662461U

CN201662461U - Dual-needle torque meter tester

Info

Publication number: CN201662461U
Application number: CN2010200000583U
Authority: CN
Inventors: 宋巍; 宁春玲; 刘峰; 刘红
Original assignee: Harbin Aircraft Industry Group Co Ltd
Current assignee: Harbin Aircraft Industry Group Co Ltd
Priority date: 2010-01-06
Filing date: 2010-01-06
Publication date: 2010-12-01
Anticipated expiration: 2020-01-06

Abstract

The utility model relates to a dual-needle torque meter tester for detecting a dual-needle torque meter of an aircraft engine on ground. The tester comprises two selecting switches, a working indicating lamp, an alarming indicating lamp, a power-supply wiring column, an emulator connecting socket, a torque meter connecting socket and a testing hole. The selecting switch is connected with the torque meter connecting socket; the emulator connecting socket is connected with the end of the torque meter connecting socket; the end of the torque meter connecting socket is connected with the working indicating lamp; the selecting switch is connected with the torque meter connecting socket end; the power-supply wiring column is connected with a DC power supply; the alarming indicating lamp is connected with the DC power supply through the torque meter connecting socket. The dual-needle torque meter tester utilizes an engine monitoring unit of the aircraft to transmit the torque force sensed by a torque meter sensor to the torque meter; numbers are converted into indicating signals through a bus receiving part of the torque meter and are indicated through a pointer, meanwhile, the indicating signals are converted into analog voltage signal to be transmitted to other devices.

Description

Crosspointer torque meter exerciser

Technical field

The utility model relates to a kind of crosspointer torque meter exerciser that is used for ground detection aircraft engine crosspointer torque meter.

Background technology

The duty of engine directly affects the overall performance of aircraft, and its output power is again to reflect by torque value, so the indication of the torque value of engine is particularly important.The use because not special-purpose before checkout equipment, torque meter are directly installed causes engine capacity control often to go wrong, and has increased general assembly energising troubleshooting difficulty, has a strong impact on manufacturing schedule, also can't meet consumers' demand.

Summary of the invention

The purpose of this utility model be propose a kind of before the torque meter installation to its crosspointer torque meter exerciser that detects.Technical solution of the present utility model is, exerciser comprises first selector switch and second selector switch, relay indicating light, alarm indicator, power-line terminal, emulator gang socket, torque meter gang socket and instrument connection, first selector switch is connected with torque meter gang socket, the A of emulator gang socket and torque meter gang socket, B, K, L end join, and the E of torque meter gang socket and F or P and R end are connected into relay indicating light and join; The U of second selector switch and torque meter gang socket and T or V and T join; Power-line terminal and direct supply join; Alarm indicator joins by torque meter gang socket and direct supply.Advantage that the utlity model has and beneficial effect, the utility model utilizes the torsional forces that the torque meter sensor is experienced in the engine monitoring unit on the aircraft to be sent to torque meter, bus interface receiving portions through torque meter is that indicator signal is indicated by pointer with digital conversion, converts analog voltage signal simultaneously to and is transferred to other equipment.The utility model employing+28VDC is not having under the situation of civil power as working power, can directly use direct current 28VDC power supply on battery truck or the aircraft, and exerciser has reduced service condition, is more suitable for flight-line service and uses.The utility model is compared with original detecting device, has increased detection port, constantly the accuracy in monitor signal source.Improved measuring accuracy, avoided in the past that exerciser provides signal source, it is existing than mistake only to observe the pointer indication.Make test more precisely reliable.The utility model has also been introduced overproof warning function test.

The utility model can carry out all round properties test to the every performance index of torque meter on the one hand, has rationally solved difficult points such as engine bus detection, avoids the directly installation of fault product, thereby improves the efficient and the quality of aircraft general assembly; Can locate rapidly the trouble spot of fault finished product on the other hand, make the maintainer judge and repair.The equal intuitive display of the utility model host computer operation interface and hardware interface, easy to operate, use reliably, can effectively increase work efficiency.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.Exerciser comprises two selector switch 1 and 2, relay indicating light 3, alarm indicator 4, power-line terminal 5, emulator gang socket 6, torque meter gang socket 7, with instrument connection 8, each selector switch 1 is connected with torque meter gang socket 7, A, the B of emulator gang socket 6 and torque meter gang socket 7, K, L end join, and the E of torque meter gang socket 7 and F or P and R end are connected into relay indicating light 3 and join; The U of second selector switch 2 and square table gang socket 7 and T or V and T join; Power-line terminal 5 joins with direct supply; Alarm indicator 4 joins by torque meter gang socket 7 and direct supply.

As shown in Figure 1, detecting device is divided into supply access, emulator input end (emulator gang socket 6), detection signal output terminal, overproof ann test loop, lighting loop and crosspointer torque meter link (torque meter gang socket 7) composition.

1. supply access: use in order to be suitable for flight-line service, exerciser has changed 220V mains-supplied mode in the past, and the employing machine is with the power supply of standard 28V two-way D.C. regulated power supply.Power supply is received on 5,6,7,8 power-line terminals of exerciser panel (diameter of phi 8.5).In order to realize the detection of double loop power supply, exerciser has designed dpdt double-pole double-throw (DPDT) first selector switch 1 on panel, power supply through " E " after protective tube FUSE (0.5A) overcurrent protection, by torque meter gang socket 7 (28V-), " F " (28V+) (or " P ", " R ") end be connected in the crosspointer torque meter, provide working power to torque meter duplex feeding passage; Simultaneously to an end that is used for current-limiting protection resistance R 1, through relay indicating light 3 (28V diameter of phi 8), relay indicating light 3 is ignited, be used for power supply indication.

2. emulator signal input part (emulator gang socket 6): the torque value that PC sends, after the emulator conversion, be sent to 8,7,3,2 ends of emulator gang socket 6, A, B, K, L end to torque meter gang socket 7 have entered torque meter two ways of digital signals bus input end.In order to ensure with the reliability in validation signal source, exerciser is provided with two groups of detection port 10 and 9, A, B, K, the L end of torque meter gang socket 7 is drawn, constantly the accuracy in monitor signal source.

For anti-stop signal disturbs, the A of torque meter gang socket 7, B and K, L end line all adopt the design of multiple twin shielding line, and C and M are shielding ground.

3. detection signal output terminal (" G " of torque meter gang socket 7, " H ", " N "): the torque value signal of emulator simulation, A, B, K, L end by exerciser torque meter gang socket 7, after having entered torque meter, the pointer of torque meter can be made the indication of corresponding torque value, simultaneously can " detection signal output terminal " output voltage values (with the pointer indicated value be the linear ratio relation).In order to strengthen measuring accuracy, exerciser had changed originally only indicates the detection mode that detects performance index by observing pointer, increase by three test ports and detected hole 8, corresponding with " G ", " H ", " N " end of torque meter gang socket 7, with multimeter that the magnitude of voltage that records is corresponding with the pointer indicated value again through calculating, avoided in the past that exerciser provides signal source, it is existing than mistake only to observe the pointer indication.Make test more precisely reliable.

4. overproof ann test loop: exerciser has also been introduced overproof warning function test in design.In order to appear this phenomenon of the failure in one's mind, in circuit, adopted the series connection of resistance R 2 and alarm indicator 4 (28V) to insert the method for 28VDC power supply, when the difference of the engine torque value of input two-way simulation during greater than setting, can become low level by high level, the active alarm signal at " J " of torque meter gang socket 7 point voltage.Alarm indicator 4 in the circuit ignites, and can realize the warning function inspection, has further expanded the measuring ability of exerciser.

5. lighting loop: there is the two-way illumination torque meter inside, by neutral second selector switch 2 of a single-pole double-throw (SPDT) is set on exerciser, direct current 28V power supply has been entered among U, the T (or V, T) of exerciser torque meter gang socket 7, be the power supply of torque meter lighting circuit, torque meter intraoral illumination lamp ignites.

Claims

1. crosspointer torque meter exerciser, it is characterized in that, exerciser comprises first selector switch (1) and second selector switch (2), relay indicating light (3), alarm indicator (4), power-line terminal (5), emulator gang socket (6), torque meter gang socket (7), and instrument connection (8), first selector switch (1) is connected with torque meter gang socket (7), A, the B of emulator gang socket (6) and torque meter gang socket (7), K, L end join, and the E of torque meter gang socket (7) and F or P and R end are connected into relay indicating light (3) and join; The U of second selector switch (2) and torque meter gang socket (7) and T or V and T join; Power-line terminal (5) joins with direct supply; Alarm indicator (4) joins by torque meter gang socket (7) and direct supply.