Comprehensive test bed for ground auxiliary power device of aero-engine

Abstract

The utility model relates to a comprehensive test bed for an aero-engine ground auxiliary power device, which belongs to the technical field of engine test equipment and comprises a base, a mounting table is arranged on the upper side of the base, a test bed is fixedly mounted on the upper side of the mounting table, and a measuring mechanism is arranged on the upper side of the test bed. A lifting mechanism is arranged between the mounting table and the base; the lifting mechanism comprises a mounting frame, a driving motor is arranged in the mounting frame, a lead screw is fixedly mounted on an output shaft of the driving motor, the outer side of the lead screw is in threaded connection with a threaded sleeve, and the outer side of the threaded sleeve is fixedly connected with a connecting block. The aero-engine ground auxiliary power device comprehensive test bed solves the problems that an engine is inconvenient to assemble and disassemble in the using process of an existing engine test bed, and inconvenience is caused due to the fact that the position of the test bed is high, workers need to install the engine on the test bed with the help of a crawling ladder and a hoisting tool.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine test equipment technical field, concretely is a kind of aero-engine ground auxiliary power device comprehensive test bed. BACKGROUND

[0002] Aircraft auxiliary power device is the device that provides AC, DC and compressed air for environmental control system when aircraft is on the ground, and is one of the necessary airborne equipment. Engine test bed is crucial to the performance test of aero-engine, and through test bed, engine design performance index, part design defects and the size of force and torque during engine operation can be tested, and designers can further improve equipment and further improve helicopter performance.

[0003] The prior art with publication number CN208636037U discloses an engine test bed, comprising: an engine mounting rack; a measuring platform; a polished rod rotatably connected to the measuring platform, and a first end of the polished rod in the axial direction is fixedly connected to the engine mounting rack; a torque measuring device for measuring the torque of the engine shaft during operation, and the torque measuring device is connected to the polished rod. The engine test bed can test the torque of the engine, has a simple structure, is easy to process, has high testing efficiency, low testing cost and high safety, and is conducive to reliably selecting, designing and improving helicopter parts.

[0004] However, the engine test bed is inconvenient to disassemble and assemble the engine during use, as the test bed is located at a high position, and the engine needs to be installed on the test bed by workers with the help of a ladder and lifting tools, which causes inconvenience. Therefore, an aero-engine ground auxiliary power device comprehensive test bed is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides an aero-engine ground auxiliary power device comprehensive test bed, which has the advantages of being easy to lift, and solves the problem that the existing engine test bed is inconvenient to disassemble and assemble the engine during use, as the test bed is located at a high position, and the engine needs to be installed on the test bed by workers with the help of a ladder and lifting tools, which causes inconvenience.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an aero-engine ground auxiliary power device comprehensive test bed, comprising a base, an installation table is arranged on the upper side of the base, a test table is fixedly installed on the upper side of the installation table, a measuring mechanism is arranged on the upper side of the test table, and a lifting mechanism is arranged between the installation table and the base.

[0007] The lifting mechanism comprises a mounting frame, a driving motor is arranged in the mounting frame, a lead screw is fixedly installed on an output shaft of the driving motor, a threaded sleeve is threadedly connected to the outer side of the lead screw, a connecting block is fixedly connected to the outer side of the threaded sleeve, the connecting block is fixedly connected with a mounting table, and a positioning mechanism is arranged between the mounting table and the mounting frame.

[0008] The positioning mechanism comprises a vertical rod and a hydraulic cylinder, and the hydraulic cylinder is fixedly installed on the side close to the vertical rod.

[0009] Further, the mounting frame is fixedly installed on the top of the base, and the driving motor is fixedly installed on the inner side of the mounting frame.

[0010] Further, the number of the lifting mechanisms is two groups, and the two groups of lifting mechanisms are respectively located on the left and right sides of the mounting table.

[0011] Further, the upper end of the lead screw is connected with the inner wall of the mounting frame through a bearing, and the threaded sleeve is fixedly connected with a sliding block on the side away from the connecting block.

[0012] Further, a sliding groove is formed in the inner wall of the mounting frame, and the sliding block is slidingly connected to the inner side of the sliding groove.

[0013] Further, a strip-shaped opening is formed in the side close to the connecting block of the mounting frame, and the connecting block penetrates through the inner side of the strip-shaped opening.

[0014] Further, a fixed plate is fixedly connected to the top of the mounting frame, the upper end of the vertical rod is fixedly connected with the fixed plate, and the lower end of the vertical rod is fixedly connected with the base.

[0015] Further, the vertical rod penetrates through the inner side of the mounting table, the hydraulic cylinder is fixedly installed on the bottom of the mounting table, and a tooth groove matched with the vertical rod is formed in the side close to the pawl of the vertical rod.

[0016] Further, the number of the positioning mechanisms is two groups, and the two groups of positioning mechanisms are respectively located on the left and right sides of the mounting table.

[0017] Further, a supporting frame is fixedly connected to the bottom of the mounting table, and a buffer plate is fixedly installed on the bottom of the supporting frame.

[0018] Compared with the prior art, the aviation engine ground auxiliary power device comprehensive test bed has the following beneficial effects:

[0019] The aero-engine ground auxiliary power device comprehensive test bench, through starting the driving motor to drive the screw rod to rotate, and drive the threaded sleeve to move up and down, simultaneously drive the connecting block and the sliding block to move up and down, height adjustment of the installation table is realized, when the test table moves to the low place, the aero-engine can be conveniently installed on the measuring mechanism, when the test table moves to the high place, through starting the hydraulic cylinder to drive the paw to move, so that it is matched with the tooth groove, the installation table is conveniently positioned, and the test is conveniently carried out, the existing engine test bench is inconvenient for engine mounting and dismounting in the using process, due to the high position of the test bench, the staff needs to use the ladder and hoisting tools to install the engine on the test bench, and the problem of inconvenience is caused. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the sectional view of the utility model structure;

[0021] Figure 2 It is the sectional view of the utility model structure; Figure 1 It is the enlarged structure schematic view of A shown in the utility model;

[0022] Figure 3 It is the structure schematic view of the vertical rod of the utility model.

[0023] In the drawing: 1, base; 2, installation table; 3, test table; 4, measuring mechanism; 5, mounting frame; 6, driving motor; 7, screw rod; 8, threaded sleeve; 9, connecting block; 10, sliding block; 11, fixed plate; 12, vertical rod; 13, hydraulic cylinder; 14, paw; 15, tooth groove; 16, support frame; 17, buffer plate. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0025] Please refer to Figures 1 to 3 The aero-engine ground auxiliary power device comprehensive test bench in the embodiment comprises a base 1, the upper side of the base 1 is provided with an installation table 2, the upper side of the installation table 2 is fixedly installed on a test table 3, and the upper side of the test table 3 is provided with a measuring mechanism 4.

[0026] In this embodiment, the lifting mechanism is arranged between the mounting table 2 and the base 1, the lifting mechanism comprises a mounting frame 5, the mounting frame 5 is fixedly installed on the top of the base 1, a driving motor 6 is arranged in the mounting frame 5, the driving motor 6 is fixedly installed on the inner side of the mounting frame 5, a lead screw 7 is fixedly installed on the output shaft of the driving motor 6, the upper end of the lead screw 7 is connected with the inner wall of the mounting frame 5 through a bearing, a threaded sleeve 8 is threadedly connected with the outer side of the lead screw 7, a connecting block 9 is fixedly connected with the outer side of the threaded sleeve 8, and the connecting block 9 is fixedly connected with the mounting table 2.

[0027] It should be noted that the side, away from the connecting block 9, of the threaded sleeve 8 is fixedly connected with a sliding block 10, a sliding groove is formed in the inner wall of the mounting frame 5, the sliding block 10 is slidably connected with the inner side of the sliding groove, and a strip-shaped opening is formed in the side, close to the connecting block 9, of the mounting frame 5.

[0028] The two driving motors 6 can be connected to a synchronous controller, the controller outputs the same control signal to the two driving motors 6, so that the two driving motors 6 run at the same speed and phase, and synchronous rotation is realized.

[0029] In this embodiment, the positioning mechanism is arranged between the mounting table 2 and the mounting frame 5, the positioning mechanism comprises a vertical rod 12 and a hydraulic cylinder 13, the hydraulic cylinder 13 is fixedly installed on the side, close to the vertical rod 12, of the mounting table 2, a fixed plate 11 is fixedly connected with the top of the mounting frame 5, the upper end of the vertical rod 12 is fixedly connected with the fixed plate 11, the lower end of the vertical rod 12 is fixedly connected with the base 1, the vertical rod 12 penetrates through the inner side of the mounting table 2, the hydraulic cylinder 13 is fixedly installed on the bottom of the mounting table 2, and the side, close to the clamping tooth 14, of the vertical rod 12 is formed with a tooth groove 15 matched with the clamping tooth 14.

[0030] The two positioning mechanisms are respectively arranged on the left and right sides of the mounting table 2.

[0031] In this embodiment, the bottom of the mounting table 2 is fixedly connected with a supporting frame 16, and the bottom of the supporting frame 16 is fixedly installed with a buffer plate 17.

[0032] The working principle of the above embodiment is as follows:

[0033] In use, the driving motor 6 is started to drive the lead screw 7 to rotate and drive the threaded sleeve 8 to move up and down, and drive the connecting block 9 and the sliding block 10 to move up and down, so that the height of the mounting table 2 is adjusted, when the test table 3 moves to a low position, the aero-engine can be conveniently installed on the measuring mechanism 4, when the test table 3 moves to a high position, the hydraulic cylinder 13 is started to drive the clamping tooth 14 to move, so that the clamping tooth 14 is matched with the tooth groove 15, the mounting table 2 is conveniently positioned, and testing is conveniently performed.

[0034] The mounting mode, connecting mode or setting mode disclosed in the embodiment are common mechanical modes, and can be implemented as long as the beneficial effects can be achieved, in addition, the electrical elements appearing in the text are electrically connected with the master controller and the power supply, the master controller is a conventional known device, and the existing disclosed power connection technology also belongs to the common knowledge in the art, therefore, the specific structure composition and working principle will not be described too much.

[0035] It should be noted that in this paper, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] It should be noted that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An aero-engine ground auxiliary power unit comprehensive test bench, comprising a base (1), the upper side of the base (1) is provided with a mounting table (2), the upper side of the mounting table (2) is fixedly installed on a test table (3), and the upper side of the test table (3) is provided with a measuring mechanism (4), characterized in that: The lifting mechanism is arranged between the mounting table (2) and the base (1); The lifting mechanism comprises a mounting frame (5), a driving motor (6) is arranged inside the mounting frame (5), a lead screw (7) is fixedly installed on an output shaft of the driving motor (6), a threaded sleeve (8) is threadedly connected to an outer side of the lead screw (7), a connecting block (9) is fixedly connected to an outer side of the threaded sleeve (8), the connecting block (9) is fixedly connected with the mounting table (2), and a positioning mechanism is arranged between the mounting table (2) and the mounting frame (5). The positioning mechanism comprises a vertical rod (12) and a hydraulic cylinder (13), and a clamping tooth (14) is fixedly installed on one side of the hydraulic cylinder (13) close to the vertical rod (12).

2. An aero-engine ground auxiliary power unit integrated test bench according to claim 1, characterized in that: The mounting frame (5) is fixedly installed on the top of the base (1), and the driving motor (6) is fixedly installed on the inner side of the mounting frame (5).

3. An aeroengine ground auxiliary power unit integrated test cell according to claim 1, characterised in that: The number of the lifting mechanisms is two, and the two lifting mechanisms are respectively arranged on the left and right sides of the mounting table (2).

4. An aeroengine ground auxiliary power unit integrated test cell according to claim 1, characterised in that: The upper end of the lead screw (7) is connected with the inner wall of the mounting frame (5) through a bearing, and the threaded sleeve (8) is fixedly connected with a sliding block (10) on the side away from the connecting block (9).

5. An aeroengine ground auxiliary power unit integrated test cell according to claim 4, characterised in that: A sliding groove is formed in the inner wall of the mounting frame (5), and the sliding block (10) is slidingly connected to the inner side of the sliding groove.

6. An aeroengine ground auxiliary power unit integrated test cell according to claim 1, characterised in that: A strip-shaped opening is formed in the side of the mounting frame (5) close to the connecting block (9), and the connecting block (9) penetrates through the inner side of the strip-shaped opening.

7. An aeroengine ground auxiliary power unit integrated test cell according to claim 1, characterised in that: A fixed plate (11) is fixedly connected to the top of the mounting frame (5), the upper end of the vertical rod (12) is fixedly connected with the fixed plate (11), and the lower end of the vertical rod (12) is fixedly connected with the base (1).

8. An aeroengine ground auxiliary power unit integrated test cell according to claim 1, characterised in that: The vertical rod (12) penetrates through the inner side of the mounting table (2), the hydraulic cylinder (13) is fixedly installed on the bottom of the mounting table (2), and a tooth groove (15) matched with the vertical rod (12) is formed in the side of the vertical rod (12) close to the clamping tooth (14).

9. An aeroengine ground auxiliary power unit integrated test cell according to claim 1, characterised in that: The number of the positioning mechanisms is two, and the two positioning mechanisms are respectively arranged on the left and right sides of the mounting table (2).

10. An aeroengine ground auxiliary power unit integrated test cell according to claim 1, characterised in that: The bottom of the mounting table (2) is fixedly connected with a supporting frame (16), and the bottom of the supporting frame (16) is fixedly installed with a buffer plate (17).

Images