Device for detecting response time of steering engine

Abstract

The invention relates to a device for detecting the response time of a steering engine, and belongs to the field of electrical testing. The device comprises a fixed plate (1), a driver (2), a steering engine connecting cable (3), a signal input cable (4), a cross sunk screw (5), a banana socket (6), a feedback cable (7) and a connector (8). The driver (2) and a plurality of banana sockets (6) are fixed on the fixing plate (1), the input end of the driver (2) is connected with the connector (8) through the steering engine connecting cable (3), the driver (2) is connected with the banana sockets (6) through the signal input cable (4), one end of the feedback cable (7) is connected with the steering engine connecting cable (3), and the other end of the feedback cable (7) is fixed on the banana sockets (6). The product detection efficiency is improved, the operation accuracy and safety are improved, the structure is simple, the manufacturing cost is low, operation is easy, and repeated use can be achieved.

Description

Technical Field

[0001] The invention belongs to the field of electrical testing, and in particular relates to a device for detecting the reaction time of a steering gear. Background Art

[0002] With the modernization of national defense and the development of military science and technology, precision strikes have become the main means of attack in modern high-tech local wars. As intelligent ammunition with precision strike capabilities, its research and development is of paramount importance.

[0003] During the attack, intelligent ammunition needs to fly according to the instructions issued by the onboard computer, and the servo is the component that executes this command. Therefore, the reaction time of the servo after receiving the command from the onboard computer is a key technical indicator. Therefore, the reaction time of the servo needs to be 100% tested. In order to improve the efficiency, accuracy and safety of the test, a special detection device is usually designed for detection. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the present invention is how to provide a device for detecting the reaction time of a steering engine, so as to solve the problems of low testing efficiency and low safety in the existing technology.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention proposes a device for detecting the reaction time of a servo, comprising: a fixing plate 1, a driver 2, a servo connection cable 3, a signal input cable 4, a cross countersunk screw 5, a banana socket 6, a feedback cable 7, and a connector 8;

[0008] The fixing plate 1 is provided with a driver 2 and a plurality of banana sockets 6. The input end of the driver 2 is connected to a connector 8 via a servo connection cable 3. The driver 2 is connected to the banana socket 6 via a signal input cable 4. One end of the feedback cable 7 is connected to the servo connection cable 3, and the other end is fixed to the banana socket 6.

[0009] During the test, the connector 8 is connected to the cable of the servo under test, and the oscilloscope, signal generator and external DC power supply are connected to the banana socket 6. The oscilloscope and signal generator are powered on in turn, and the signal generator outputs a square wave. The rising edge change time of the oscilloscope is observed, which is the servo reaction time.

[0010] Wherein, the driver 2 comprises: four identical H-bridge drive circuits, an input-output circuit and a power supply module;

[0011] The H-bridge driving circuit is used to sort out the input signals, amplify the four-way signals input by the signal generator, and output them to the input-output circuit;

[0012] The input-output circuit is connected to an oscilloscope inserted into a banana socket 6 via a signal input cable 4, and outputs the four-way signals amplified by the H-bridge driving circuit to the oscilloscope;

[0013] The power supply module is connected to an external DC power supply to supply power to the H-bridge drive circuit and the input and output circuit.

[0014] The servo connection cable 3 includes 11 wires, which are numbered D1 to D11, wherein one end of the wires numbered D1 to D7 is connected to the input and output circuit, and D8 to D11 is connected to the feedback cable 7. The other end of the wires numbered D1 to D11 of the servo connection cable 3 is connected to the connector 8.

[0015] The signal input cable 4 includes 7 conductors, which are numbered X1 to X7. One end of the conductors X1 to X7 of the signal input cable 4 is connected to the driver 2, and the other end is connected to the banana socket 6.

[0016] There are 12 banana sockets 6, numbered as +12V, -12V, GND, I1-14, O1-O5.

[0017] The banana socket 6 is fixed on the fixed plate 1 by threaded connection, and the connection terminals of the banana socket 6 numbered +12V, -12V, GND, I1-14 are connected to the wires of the signal input cable 4 numbered X1-X7 one by one and are welded by soldering, and the connection terminals of the banana socket 6 numbered O1-O5 are connected to the wires of the feedback cable 7 numbered F1-F5 one by one and are welded by soldering.

[0018] The feedback cable 7 includes five conductors, which are numbered F1 to F5 respectively;

[0019] One end of the feedback cables 7 numbered F1 to F5 is connected to the banana sockets 6 numbered O1 to O5 one by one and is soldered, and the other end is connected to the servo connection cables 3 numbered D8 to D11 and D3 one by one and is soldered.

[0020] The terminal pins of the connector 8 are connected to the wires D1-D11 in the servo connection cable 3 correspondingly and are welded by soldering.

[0021] The fixing plate 1 is configured as a 200mm×200mm×20mm nylon PP plastic plate, and threaded holes are processed on the fixing plate 1 .

[0022] The "+" ends of the oscilloscope probes are connected to the banana sockets 6 of device numbers O1-O4 respectively, and the "-" ends of the probes are connected to the banana socket 6 of device number O5;

[0023] The "+" ends of the signal generator probes are connected to the banana sockets 6 of device numbers I1-I4 respectively, and the "-" ends of the probes are connected to the banana sockets 6 of device number GND;

[0024] The DC voltage regulator +12V terminal is connected to the banana socket 6 with number +12V, the GND terminal is connected to the banana socket 6 with number GND, and the -12V terminal is connected to the banana socket 6 with number -12V.

[0025] The screw 5 is a cross recessed countersunk screw, and the driver 2 and the fixing plate 1 are fixed together by the screw 5 .

[0026] (III) Beneficial effects

[0027] The present invention provides a device for detecting the reaction time of a steering gear, which improves product detection efficiency, increases operation accuracy and safety, has a simple structure, low manufacturing cost, is easy to operate, and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a block diagram of the principle of use of the present invention to detect the reaction time of the steering gear;

[0029] Figure 2 The present invention is a composition layout diagram for detecting the reaction time of the steering gear;

[0030] Figure 3 This is a principle block diagram of the driver 2 of the present invention;

[0031] Figure 4 The internal principle diagram of the device for detecting the reaction time of the steering gear of the present invention;

[0032] Figure 5 The circuit diagram of the input and output circuit of the present invention;

[0033] Figure 6 This is a circuit diagram of the H-bridge driving circuit of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0035] This embodiment provides a device for detecting the reaction time of a servo, comprising: a fixing plate 1, a driver 2, a servo connection cable 3, a signal input cable 4, a cross countersunk screw 5, a banana socket 6, a feedback cable 7, and a connector 8;

[0036] It includes one power input, four signal inputs, four outputs, and one servo input. The power input is provided by a DC regulated power supply. The four signal inputs and outputs are composed and processed by 4 H-bridge drive circuits. One servo input is provided by the servo. (The signal generator outputs four signals at the same time)

[0037] The fixing plate 1 is provided with a driver 2 and a plurality of banana sockets 6. The input end of the driver 2 is connected to a connector 8 via a servo connection cable 3. The driver 2 is connected to the banana socket 6 via a signal input cable 4. One end of the feedback cable 7 is connected to the servo connection cable 3, and the other end is fixed to the banana socket 6.

[0038] During the test, the connector 8 is connected to the cable of the servo under test, and the oscilloscope, signal generator and external DC power supply are connected to the banana socket 6. The oscilloscope and signal generator are powered on in turn, and the signal generator outputs a square wave. The rising edge change time of the oscilloscope is observed, which is the servo reaction time.

[0039] Wherein, the driver 2 comprises: four identical H-bridge drive circuits, an input-output circuit and a power supply module;

[0040] The H-bridge driving circuit is used to sort out the input signals, amplify the four-way signals input by the signal generator, and output them to the input-output circuit;

[0041] A single H-bridge drive circuit consists of a half-bridge drive chip, a Schottky diode, three capacitors, two resistors, and three MOS tubes. In the H-bridge drive circuit, C2 is a bootstrap capacitor, D1 is a fast recovery diode, C2 and D1 form a bootstrap power supply, C1 and C3 are used for power supply filtering, and resistors R1 and R2 ensure the stable operation of the MOS tube. A single H-bridge drive circuit controls the MOS tube through the bootstrap power supply and the half-bridge drive chip, thereby achieving an amplification effect.

[0042] The input-output circuit is connected to an oscilloscope inserted into a banana socket 6 via a signal input cable 4, and outputs the four-way signals amplified by the H-bridge driving circuit to the oscilloscope;

[0043] The input and output circuit adopts a standard single-row pin header design with a total of 12 pins. Pin Z1 is connected to the +VCC of Z4 H-bridge drive circuits, pin Z2 is connected to the -VCC of Z4 H-bridge drive circuits, pin Z3 is short-circuited with pin Z4 and then connected to the GND of the 4 H-bridge drive circuits, pins Z5 to Z8 are respectively connected to IN1-IN4 of the 4 H-bridge drive circuits, and pins Z9 to Z12 are respectively connected to OUT1-OUT4 of the 4 H-bridge drive circuits.

[0044] The power supply module is connected to an external DC power supply to supply power to the H-bridge drive circuit and the input and output circuit.

[0045] The servo connection cable 3 includes 11 wires, which are numbered D1 to D11, wherein one end of the wires numbered D1 to D7 is connected to the input and output circuit, and D8 to D11 is connected to the feedback cable 7. The other end of the wires numbered D1 to D11 of the servo connection cable 3 is connected to the connector 8.

[0046] The signal input cable 4 includes 7 conductors, which are numbered X1 to X7. One end of the conductors X1 to X7 of the signal input cable 4 is connected to the driver 2, and the other end is connected to the banana socket 6.

[0047] There are 12 banana sockets 6, numbered as +12V, -12V, GND, I1-14, O1-O5.

[0048] The banana socket 6 is fixed on the fixed plate 1 by threaded connection, and the connection terminals of the banana socket 6 numbered +12V, -12V, GND, I1-14 are connected to the wires of the signal input cable 4 numbered X1-X7 one by one and are welded by soldering, and the connection terminals of the banana socket 6 numbered O1-O5 are connected to the wires of the feedback cable 7 numbered F1-F5 one by one and are welded by soldering.

[0049] The feedback cable 7 includes five conductors, which are numbered F1 to F5 respectively;

[0050] One end of the feedback cables 7 numbered F1 to F5 is connected to the banana sockets 6 numbered O1 to O5 one by one and is soldered, and the other end is connected to the servo connection cables 3 numbered D8 to D11 and D3 one by one and is soldered.

[0051] The terminal pins of the connector 8 are connected to the wires D1-D11 in the servo connection cable 3 correspondingly and are welded by soldering.

[0052] The fixing plate 1 is configured as a 200mm×200mm×20mm nylon PP plastic plate, and threaded holes are processed on the fixing plate 1 .

[0053] The "+" ends of the oscilloscope probes are connected to the banana sockets 6 of device numbers O1-O4 respectively, and the "-" ends of the probes are connected to the banana socket 6 of device number O5;

[0054] The "+" ends of the signal generator probes are connected to the banana sockets 6 of device numbers I1-I4 respectively, and the "-" ends of the probes are connected to the banana sockets 6 of device number GND;

[0055] The DC voltage regulator +12V terminal is connected to the banana socket 6 with number +12V, the GND terminal is connected to the banana socket 6 with number GND, and the -12V terminal is connected to the banana socket 6 with number -12V.

[0056] The screw 5 is a cross recessed countersunk screw, and the driver 2 and the fixing plate 1 are fixed together by the screw 5 .

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for detecting the reaction time of a steering gear, characterized in that: include: Fixing plate (1), driver (2), servo connection cable (3), signal input cable (4), cross countersunk screw (5), banana socket (6), feedback cable (7), connector (8); The fixing plate (1) is fixed with a driver (2) and a plurality of banana sockets (6); the input end of the driver (2) is connected to a connector (8) via a steering gear connection cable (3); the driver (2) is connected to the banana socket (6) via a signal input cable (4); one end of the feedback cable (7) is connected to the steering gear connection cable (3) and the other end is fixed to the banana socket (6); During the test, the connector (8) is connected to the cable of the servo motor to be tested, and the oscilloscope, the signal generator and the external DC power supply are connected to the banana socket (6). The oscilloscope and the signal generator are powered on in turn, the signal generator outputs a square wave, and the rising edge change time of the oscilloscope is observed, which is the servo motor reaction time.

2. The device for detecting the reaction time of a steering engine according to claim 1, characterized in that: The driver (2) comprises: four identical H-bridge drive circuits, an input-output circuit and a power supply module; The H-bridge driving circuit is used to sort out the input signals, amplify the four-way signals input by the signal generator, and output them to the input-output circuit; The input-output circuit is connected to an oscilloscope inserted into a banana socket (6) via a signal input cable (4), and outputs the four-channel signals amplified by the H-bridge driving circuit to the oscilloscope; The power supply module is connected to an external DC power supply to supply power to the H-bridge drive circuit and the input and output circuit.

3. The device for detecting the reaction time of a steering engine according to claim 1, characterized in that: The servo connection cable (3) comprises 11 wires, which are numbered D1 to D11, wherein one end of the wires numbered D1 to D7 is connected to the input and output circuit, and D8 to D11 is connected to the feedback cable (7). The other end of the wires numbered D1 to D11 of the servo connection cable (3) is connected to the connector (8).

4. The device for detecting the reaction time of a steering engine according to claim 1, characterized in that: The signal input cable (4) comprises 7 conductors, which are numbered X1 to X7. One end of the conductors numbered X1 to X7 of the signal input cable (4) is connected to the driver (2), and the other end is connected to the banana socket (6).

5. The device for detecting the reaction time of a steering engine according to claim 1, characterized in that: The banana sockets (6) are provided with 12 in total, numbered respectively as +12V, -12V, GND, I1-14, O1-O5; The banana sockets (6) are fixed on the fixing plate (1) by threaded connection, the connection terminals of the banana sockets (6) numbered +12V, -12V, GND, I1-14 are connected to the wires of the signal input cable (4) numbered X1-X7 in a one-to-one correspondence and are welded by soldering, and the connection terminals of the banana sockets (6) numbered O1-O5 are connected to the wires of the feedback cable (7) numbered F1-F5 in a one-to-one correspondence and are welded by soldering.

6. The device for detecting the reaction time of a steering engine according to claim 1, characterized in that: The feedback cable (7) comprises five conductors, which are numbered F1 to F5 respectively; One end of the feedback cables (7) numbered F1 to F5 is connected to the banana sockets (6) numbered O1 to O5 in a one-to-one correspondence and is soldered, and the other end is connected to the steering gear connection cables (3) numbered D8 to D11 and D3 in a one-to-one correspondence and is soldered.

7. The device for detecting the reaction time of a steering engine as claimed in claim 2, characterized in that: The terminal pins of the connector (8) are connected to the wires numbered D1-D11 in the steering gear connection cable (3) correspondingly and are welded by soldering.

8. The device for detecting the reaction time of a steering engine according to claim 2, characterized in that: The fixing plate (1) is configured as a 200mm×200mm×20mm nylon PP plastic plate, and threaded holes are processed on the fixing plate (1).

9. The device for detecting the reaction time of a steering engine according to claim 1, characterized in that: The "+" ends of the oscilloscope probes are respectively connected to the banana sockets (6) with device numbers O1-O4, and the "-" ends of the probes are connected to the banana socket (6) with device number O5; The "+" ends of the signal generator probes are connected to the banana sockets (6) with device numbers I1-I4 respectively, and the "-" ends of the probes are connected to the banana sockets (6) with device number GND; The DC voltage regulator +12V terminal is connected to the banana socket (6) numbered +12V, the GND terminal is connected to the banana socket (6) numbered GND, and the -12V terminal is connected to the banana socket (6) numbered -12V.

10. The device for detecting the reaction time of a steering engine according to claim 1, characterized in that: The screw (5) is a cross-slot countersunk screw, and the driver (2) and the fixing plate (1) are fixed by the screw (5).

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