Aviation piston engine ground test bed system

Abstract

The utility model relates to a ground test bed system for an aviation piston engine, which belongs to the technical field of ground test beds and comprises a base and a support table arranged at the top of the base. A purifying and filtering mechanism capable of treating waste gas exhausted by the engine body is arranged at the top of the base, the purifying and filtering mechanism comprises a purifying and filtering box fixedly installed at the top of the base, and a conveying pump is fixedly installed at the top of the base. According to the ground test bed system for the aviation piston engine, by arranging the conveying pump and the exhaust pipeline, waste gas in the engine body can be conveyed into the purifying and filtering box, then the waste gas can be purified and filtered by arranging the primary filter, the particle trap and the activated carbon filter, and therefore the situation that the waste gas pollutes the surrounding environment can be avoided; and meanwhile, by arranging the silencing barrel, the silencing effect can be achieved, and noise pollution is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to ground test bed technical field, concretely is a kind of aviation piston engine ground test bed system. BACKGROUND

[0002] Aero-engine is a kind of thermal power device with great technical difficulty, complex working condition, strict maintenance requirement and higher development and use cost.It has very complex structure, and plays a crucial role in the reliability, safety and performance of aircraft operation.During the life cycle of aero-engine, in order to ensure flight safety, it is necessary to carry out test run of aero-engine regularly according to the provisions to detect the performance of engine.

[0003] Ground test bed is a special facility for testing engine performance, reliability and safety, and is widely used in aviation, aerospace, automobile and ship fields.It can simulate various working conditions of engine in actual operation, and provide key data support for research and development, verification and optimization.

[0004] During the detection of aero-engine, ground test bed is needed, and the Chinese utility model patent with publication number CN217331619U discloses an aero-engine ground test test bed, which comprises: a mounting frame, a supporting leg, a first support and a second support, wherein the first support is vertically fixed to the mounting frame, the second support is arranged on one side of the first support, and the mounting frame and the second support are movably connected, and an aero-engine is movably connected between the first support and the second support.The utility model has small size and simple structure, and has important significance in daily teaching and scientific research.It can not only carry out conventional teaching practice courses such as engine structure, engine deep detection, engine fault diagnosis and state monitoring, but also can realize experimental training projects that cannot be carried out in traditional engine training.The equipment is designed based on teaching research, has high safety degree, and is especially suitable for teaching research.

[0005] However, during the operation of the generator, a large amount of exhaust gas is generated, and the device does not have a structure for preliminary treatment of the exhaust gas, which may cause the exhaust gas to spread in the air and cause air pollution, and cannot meet the production requirements, so an aviation piston engine ground test bed system is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of aviation piston engine ground test bed system, with the advantage of facilitating preliminary treatment of exhaust gas, solve the problem that due to generator in the process of operation, a large amount of exhaust gas will be generated, and the device is not provided with the structure that can preliminarily treat exhaust gas, which may cause exhaust gas to spread in the air, thereby causing air pollution, and cannot meet production needs.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of aviation piston engine ground test bed system, including base and the support platform being set to the top of base, the top of support platform is provided with engine body, the top of base is provided with the purification filtering mechanism capable of treating exhaust gas discharged by engine body;

[0008] The purification filtering mechanism includes purification filtering box fixedly installed on the top of base, the top of base is fixedly installed with conveying pump, and the input end of conveying pump is fixedly connected with exhaust pipe between engine body, the output end of conveying pump is fixedly connected with communication pipe between purification filtering box, the inside of purification filtering box is fixedly installed with primary filter, particulate trap and activated carbon filter respectively.

[0009] Further, the primary filter, particulate trap and activated carbon filter are distributed from bottom to top respectively, and the top of the purification filtering box is fixedly connected with an exhaust pipe extending into the inside thereof.

[0010] Further, the outside of the exhaust pipe is fixedly installed with a silencer, and the base and the support platform are fixedly connected with a support column.

[0011] Further, the front and back of the top of the support platform are fixedly connected with support plates, two mounting covers are arranged between the two support plates, the top of the support platform is fixedly connected with a first hinge member, and the first hinge member is hingedly connected with the mounting cover.

[0012] Further, the top of the mounting plate is fixedly connected with a connecting block, and the connecting block and the support plate are fixedly connected with a second hinge member, and the two second hinge members are hingedly connected with a hydraulic cylinder.

[0013] Further, the number of the hydraulic cylinder is two, and the two hydraulic cylinders are symmetrically distributed on one side away from the two mounting covers.

[0014] Further, the opposite side of the two mounting covers is provided with a pressing plate, and the pressing plate and the mounting cover are fixedly connected with a damping shock absorber.

[0015] Further, the engine body is located between the two pressing plates, and the pressing plates abut against the engine body.

[0016] Further, the top of the base is fixedly connected with a fuel tank and a fuel pump, a connecting pipe is fixedly connected between the input end of the fuel pump and the fuel tank, and a fuel pipeline is fixedly connected between the output end of the fuel pump and the engine body.

[0017] Further, the front of the fuel tank is fixedly connected with a liquid level window, and the front of the fuel tank is fixedly connected with an oil filling pipe extending into the interior thereof.

[0018] Compared with the prior art, the aviation piston engine ground test bench system has the following beneficial effects:

[0019] 1. The aviation piston engine ground test bench system can transport the exhaust gas in the engine body to the interior of the purification filter box through the setting of the delivery pump and the exhaust pipeline, can purify and filter the exhaust gas through the setting of the primary filter, the particulate trap and the activated carbon filter, can avoid exhaust gas pollution of the surrounding environment, can realize the silencing effect through the setting of the silencer, and can reduce noise pollution.

[0020] 2. The aviation piston engine ground test bench system can drive the installation cover to rotate through the setting of the hydraulic cylinder and the two second hinged pieces, can conveniently install and fix the engine body, can improve the stability of the engine body through the setting of the damping shock absorber and the pressing plate, can play a damping effect on the engine body, solves the problem that the device does not set a structure for preliminarily treating exhaust gas, which may cause the exhaust gas to spread in the air and cause air pollution, and cannot meet the production requirements. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 It is a structural section view of the utility model;

[0022] Fig. 2 It is a structural schematic view of the purification filtering mechanism of the utility model;

[0023] Fig. 3 It is a structural side view of the installation cover of the utility model;

[0024] Fig. 4 It is a structural perspective view of the utility model.

[0025] In the figure: 1 base, 2 support table, 3 engine body, 4 purification filter box, 5 delivery pump, 6 exhaust pipe, 7 communication pipe, 8 primary filter, 9 particle trap, 10 activated carbon filter, 11 exhaust pipe, 12 muffler, 13 support column, 14 mounting plate, 15 mounting cover, 16 first hinged piece, 17 second hinged piece, 18 connecting block, 19 hydraulic cylinder, 20 compression plate, 21 damping shock absorber, 22 fuel tank, 23 fuel pump, 24 oil pipeline. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figs. 1 to 4 The ground test bench system of the aviation piston engine in the embodiment comprises a base 1 and a support table 2 arranged on the top of the base 1, the top of the support table 2 is provided with an engine body 3, the top of the base 1 is provided with a purification filtering mechanism capable of treating exhaust gas discharged by the engine body 3, the purification filtering mechanism comprises a purification filtering box 4 fixedly installed on the top of the base 1, a delivery pump 5 is fixedly installed on the top of the base 1, an exhaust pipe 6 is fixedly connected between the input end of the delivery pump 5 and the engine body 3, a communication pipe 5 is fixedly connected between the output end of the delivery pump 5 and the purification filtering box 4, and the inside of the purification filtering box 4 is fixedly installed with a primary filter 8, a particle trap 9 and an activated carbon filter 10 respectively.

[0028] The primary filter 8, the particle trap 9 and the activated carbon filter 10 are distributed from bottom to top respectively, the top of the purification filtering box 4 is fixedly connected with an exhaust pipe 11 extending into the inside thereof, the outside of the exhaust pipe 6 is fixedly installed with a muffler 12, and the support column 13 is fixedly connected between the base 1 and the support table 2.

[0029] It should be noted that the particle trap 9 is a diesel particulate filter, which can capture PM through a porous ceramic or metal filter element and periodically regenerate (oxidize the soot) through high temperature.

[0030] In this embodiment, the front and back of the top of the support table 2 are fixedly connected with support plates 14, two mounting covers 15 are arranged between the two support plates 14, the top of the support table 2 is fixedly connected with a first hinged piece 16, the first hinged piece 16 is hinged with the mounting cover 15, the top of the mounting cover 15 is fixedly connected with a connecting block 18, the second hinged pieces 17 are fixedly connected between the connecting block 18 and the support plate 14, and the two second hinged pieces 17 are hinged with a hydraulic cylinder 19.

[0031] Among them, the number of hydraulic cylinders 19 is two, the two hydraulic cylinders 19 are symmetrically distributed on the side away from the two mounting covers 15, and the opposite side of the two mounting covers 15 is provided with a pressing plate 20, and the damping shock absorber 21 is fixedly connected between the pressing plate 20 and the mounting cover 15.

[0032] It should be noted that the engine body 3 is located between the two pressing plates 20, and the pressing plate 20 abuts against the engine body 3. By arranging the hydraulic cylinder 19 and the two second hinged pieces 17, the mounting cover 15 can be rotated, thereby facilitating the installation and fixation of the engine body 3. By arranging the damping shock absorber 21 and the pressing plate 20, the stability of the engine body 3 can be improved, and the damping effect of the engine body 3 can be achieved.

[0033] In this embodiment, the top of the base 1 is fixedly connected with a fuel tank 22 and a fuel pump 23, a connecting pipe is fixedly connected between the input end of the fuel pump 23 and the fuel tank 22, and a fuel pipeline 24 is fixedly connected between the output end of the fuel pump 23 and the engine body 3.

[0034] Among them, the front of the fuel tank 22 is fixedly connected with a liquid level window, and the front of the fuel tank 22 is fixedly connected with an oil filling pipe extending into its interior.

[0035] The working principle of the above embodiment is as follows:

[0036] First, the staff transports the engine body 3 to a suitable position, then simultaneously starts the two hydraulic cylinders 19 to drive the two mounting covers 15 to rotate, at this time the staff places the engine body 3 between the two mounting covers 15, and simultaneously installs the engine body 3 by using the hydraulic cylinder 19, then starts the fuel pump 23 to deliver fuel to the inside of the engine body 3, so that the engine body 3 runs, and in the process of running, the delivery pump 5 delivers the exhaust gas to the inside of the purification filter box 4, thereby achieving the effect of purifying and filtering the exhaust gas.

[0037] The electrical components appearing in the text are electrically connected with the main control unit and the power supply. The main control unit can be a conventional known device such as a computer, and the existing disclosed power connection technology also belongs to the common technical knowledge in the field, which will not be described herein.

[0038] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0039] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. An aero-piston engine ground test bench system comprising a base (1) and a support table (2) arranged on top of the base (1), characterized in that: The top of the support table (2) is provided with an engine body (3), and the top of the base (1) is provided with a purification filtering mechanism capable of treating exhaust gas discharged by the engine body (3); The purification filtering mechanism comprises a purification filtering box (4) fixedly installed on the top of the base (1), and a delivery pump (5) is fixedly installed on the top of the base (1), an exhaust pipe (6) is fixedly connected between the input end of the delivery pump (5) and the engine body (3), a communication pipe (5) is fixedly connected between the output end of the delivery pump (5) and the purification filtering box (4), and the inside of the purification filtering box (4) is fixedly installed with an initial filter (8), a particulate trap (9) and an activated carbon filter (10) in sequence from bottom to top.

2. An aircraft piston engine ground run test stand system as in claim 1, wherein: The initial filter (8), the particulate trap (9) and the activated carbon filter (10) are distributed from bottom to top, and the top of the purification filtering box (4) is fixedly connected with an exhaust pipe (11) extending into the inside thereof.

3. An aircraft piston engine ground run test stand system as in claim 1, wherein: An exhaust muffler (12) is fixedly installed on the outside of the exhaust pipe (6), and a support column (13) is fixedly connected between the base (1) and the support table (2).

4. An aircraft piston engine ground run test stand system as in claim 1, wherein: Front and back surfaces of the top of the support table (2) are fixedly connected with support plates (14), two mounting covers (15) are arranged between the two support plates (14), a first hinge (16) is fixedly connected to the top of the support table (2), and the first hinge (16) is hingedly connected with the mounting cover (15).

5. An aircraft piston engine ground run test stand system as claimed in claim 4, characterized in that: A connecting block (18) is fixedly connected to the top of the mounting cover (15), a second hinge (17) is fixedly connected between the connecting block (18) and the support plate (14), and a hydraulic cylinder (19) is hingedly connected between the two second hinges (17).

6. An aircraft piston engine ground run test stand system as claimed in claim 5, characterized in that: The number of the hydraulic cylinders (19) is two, and the two hydraulic cylinders (19) are symmetrically distributed on one side away from each other of the two mounting covers (15).

7. An aircraft piston engine ground run test stand system as in claim 4, wherein: Opposite sides of the two mounting covers (15) are provided with pressing plates (20), and a damping shock absorber (21) is fixedly connected between the pressing plate (20) and the mounting cover (15).

8. An aircraft piston engine ground run test stand system as claimed in claim 7, characterized in that: The engine body (3) is located between the two pressing plates (20), and the pressing plates (20) abut against the engine body (3).

9. An aircraft piston engine ground run test stand system as in claim 1, wherein: A fuel tank (22) and a fuel pump (23) are fixedly connected to the top of the base (1), a connecting pipe is fixedly connected between the input end of the fuel pump (23) and the fuel tank (22), and a fuel pipe (24) is fixedly connected between the output end of the fuel pump (23) and the engine body (3).

10. An aircraft piston engine ground run test stand system as claimed in claim 9, characterized in that: A liquid level window is fixedly connected to the front surface of the fuel tank (22), and an oil filling pipe extending into the inside of the fuel tank (22) is fixedly connected to the front surface of the fuel tank (22).

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