Micro-miniature turbojet engine mounting disc dismounting device

Abstract

The utility model discloses a microminiature turbojet engine mounting plate dismounting device, which relates to the technical field of mechanical maintenance, and comprises a positioning seat and a pull claw clamp assembly, the middle part of the positioning seat is provided with a space matched with the outer side wall of a mounting plate, and the upper part of the positioning seat is provided with a support assembly; the upper end of the pull claw clamp assembly is erected on the supporting assembly through a rotary driving mechanism, the lower end of the pull claw clamp assembly extends towards the space and abuts against the mounting disc for positioning, the rotary driving mechanism drives the pull claw clamp assembly to move up and down relative to the supporting assembly, and the pull claw clamp assembly can rotate around the rotary driving mechanism within the axial range. The lower end of the pull claw clamp assembly abuts against the bottom surface of the mounting disc; according to the dismounting device, the mounting disc can be accurately, rapidly and safely dismounted under the compact space environment of the micro turbojet engine, so that the quality and efficiency of engine maintenance are improved, and the risk that parts are damaged possibly due to a traditional dismounting mode is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical maintenance technical field, concretely relates to a micro small turbojet engine mounting disc dismounting device. BACKGROUND

[0002] Micro small turbojet engines are widely used in the fields of aerospace models, small aircrafts and special equipment. In the whole life cycle management of the engine, maintenance and repair work is crucial, and the dismounting of the mounting disc, as a key link, faces many challenges.

[0003] Traditional mounting disc dismounting methods mainly rely on hand tools such as wrenches and crowbars. However, these tools have obvious shortcomings when facing micro small turbojet engine mounting discs. On the one hand, due to the compact internal space of the engine, the operation space of the hand tools is limited, and the operation is extremely tedious, resulting in low dismounting efficiency. The operator often needs to spend a lot of time and effort to complete the dismounting work, which will seriously affect the work progress in the actual maintenance scene.

[0004] On the other hand, hand tools are difficult to accurately control the direction and force of the force. The engine mounting disc is closely connected with the casing, and when using tools such as wrenches in a narrow space, it is easy to cause scratches, bumps and other physical damage to the mounting disc and surrounding parts due to improper force. Such damage not only affects the performance and service life of the mounting disc itself, but also may affect other related parts, thereby reducing the reliability and stability of the entire engine.

[0005] In addition, with the continuous development of micro small turbojet engine technology, the requirements for its maintenance are also increasing, and the traditional manual dismounting method has been difficult to meet the efficient, accurate and safe maintenance requirements. Therefore, there is an urgent need for a specially designed dismounting device. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a micro small turbojet engine mounting disc dismounting device, which applies upward traction to the pawl clamp assembly through the rotary drive mechanism, so that the mounting disc is separated from the engine shell in the vertical direction, thereby realizing accurate, fast and safe dismounting operation of the mounting disc in the compact space environment of the micro small turbojet engine, improving the quality and efficiency of engine maintenance and repair, and reducing the risk of component damage caused by traditional dismounting methods.

[0007] The utility model realizes the following technical scheme:

[0008] A micro small turbojet engine mounting disc dismounting device comprises:

[0009] The positioning seat is provided with a space matching the outer wall of the mounting disc in the middle part, and a support assembly is arranged on the upper part of the positioning seat;

[0010] The upper end of the puller clamp assembly is arranged on the support assembly through a rotary driving mechanism, and the lower end of the puller clamp assembly extends to the space and abuts against the mounting disc.

[0011] The rotary driving mechanism drives the puller clamp assembly to move up and down relative to the support assembly, and the puller clamp assembly can rotate in the axial range around the rotary driving mechanism, and the lower end of the puller clamp assembly abuts against the bottom surface of the mounting disc when the dismounting device is in the working state.

[0012] In the scheme, the space in the middle part of the positioning seat provides a preliminary positioning basis for the mounting disc, ensuring the accuracy of subsequent operations; and the support assembly on the upper part provides a stable support structure for the puller clamp assembly. The puller clamp assembly is connected with the support assembly through the rotary driving mechanism, realizing up and down movement and axial rotation, and the lower end abuts against the bottom surface of the mounting disc during work. This design can adapt to the compact space environment of the engine, so that the puller clamp assembly can act on the mounting disc accurately. The rotary driving mechanism provides power to drive the puller clamp assembly to move, realizing stable and effective traction force on the mounting disc, so as to ensure that the mounting disc can be separated from the engine shell in the vertical direction, meet the needs of accurate, fast and safe dismounting of the mounting disc, improve the efficiency and quality of engine maintenance, and reduce the risk of part damage.

[0013] As an optimization scheme of the dismounting device, the support assembly includes a base and a fixed column;

[0014] The base is provided with a plurality of bases, and the plurality of bases are uniformly distributed along the axis of the positioning seat, and one end of the plurality of bases is connected to the same point, and the other end of the plurality of bases is arranged on the upper end surface of the positioning seat through the fixed column.

[0015] In the scheme, the plurality of bases are uniformly distributed along the axis of the positioning seat, and one end of the plurality of bases is connected to the same point, and the other end of the plurality of bases is arranged on the upper end surface of the positioning seat through the fixed column. This layout can uniformly disperse the force generated by the puller clamp assembly during work, ensuring the stability of the entire dismounting device during operation, and effectively preventing shaking or displacement due to uneven force.

[0016] As an optimization scheme of the dismounting device, the puller clamp assembly includes a jacking seat and a pull rod;

[0017] The plurality of jacking seats are uniformly distributed along the axis of the positioning seat and one end of each of the plurality of jacking seats is connected to the output end of the rotary driving mechanism, and the other end of each of the plurality of jacking seats is connected to the pull rod, and the free end of the pull rod abuts against the bottom surface of the mounting disc.

[0018] In the present scheme, the plurality of jacking seats which are uniformly distributed along the axis of the positioning seat and one end of each of which is connected to the output end of the rotary driving mechanism can uniformly and effectively transmit the rotary driving force to the pull rod, and the connection of the jacking seat and the pull rod ensures the stability and force transmission of the structure, and the abutment of the free end of the pull rod against the bottom surface of the mounting disc can accurately apply the jacking force to the mounting disc when the rotary driving mechanism is operated, so that the mounting disc is uniformly stressed and local stress concentration is avoided to prevent damage.

[0019] As an optimization scheme of the dismounting device, the claw clamp assembly further comprises a support ring, and the outer side wall of the support ring is connected to all the pull rods.

[0020] In the present scheme, the outer side wall of the support ring is connected to all the pull rods, which primarily serves to enhance the overall structural strength of the claw clamp assembly. During dismounting, when the rotary driving mechanism applies a force to the claw clamp assembly, the pull rod will bear a large tensile force and torque, and the support ring can effectively disperse these forces to prevent the pull rod from being deformed or displaced due to uneven stress, thereby ensuring the stability and reliability of the claw clamp assembly.

[0021] As an optimization scheme of the dismounting device, the jacking seats are staggered with the base.

[0022] In the present scheme, the staggered arrangement makes the structure more compact, effectively utilizes the limited space, avoids mutual interference between components, and ensures that the components of the dismounting device can operate smoothly in the compact internal environment of the engine.

[0023] As an optimization scheme of the dismounting device, the free end of the pull rod is connected to a claw, and the claw extends towards the bottom surface of the mounting disc.

[0024] In the present scheme, the claw can closely fit the bottom surface of the mounting disc, greatly increasing the contact area and friction force with the mounting disc, ensuring that the traction force can be stably and effectively transmitted when the rotary driving mechanism applies a pulling force, so that the mounting disc is more uniformly stressed and the condition of slippage or local excessive stress that damages the mounting disc is prevented.

[0025] As an optimization scheme of the dismounting device, a positioning groove is formed in the inner side wall of the positioning seat, and the positioning groove is located on the rotation path of the pull rod.

[0026] In the scheme, the accurate positioning and guiding of the positioning groove greatly improve the accuracy and stability of the disassembly operation, and reduce the risk of damage to the engine mounting disc and surrounding components due to operation errors.

[0027] As an optimization scheme of the disassembly device, the positioning groove is arranged between the adjacent bases.

[0028] In the scheme, the layout makes full use of the space between the bases, so that the positioning groove is more reasonably and compactly arranged, without occupying too much additional space, thereby ensuring the simplicity of the overall structure of the disassembly device.

[0029] As an optimization scheme of the disassembly device, the rotating drive mechanism comprises a screw rod, one end of the screw rod passes through the intersection of the jacking seat along the axis of the positioning seat and abuts against the support assembly, and the screw rod is in threaded connection with the jacking seat.

[0030] In the scheme, the screw rod passes through the intersection of the jacking seat along the axis of the positioning seat and abuts against the support assembly, and the screw rod is in threaded connection with the jacking seat, so that the screw rod can effectively convert the rotary motion into linear motion based on the mechanical properties of the screw thread, thereby accurately controlling the up-down movement of the jacking seat.

[0031] As an optimization scheme of the disassembly device, the rotating drive mechanism further comprises a disassembly nut, which is located between the support assembly and the claw clamp assembly and is in threaded connection with the screw rod.

[0032] In the scheme, the disassembly nut is located between the support assembly and the claw clamp assembly and is in threaded connection with the screw rod, so that the disassembly nut can further stabilize the position of the screw rod during the disassembly operation, prevent unnecessary displacement or shaking of the screw rod due to force, and ensure that the pulling force direction transmitted by the rotating drive mechanism is always stable and accurate.

[0033] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0034] 1. The utility model discloses a positioning seat, claw clamp assembly and rotating drive mechanism, can realize the disassembly of the micro turbojet engine mounting disc quickly, greatly shorten the maintenance time, improve work efficiency;

[0035] 2. The utility model discloses avoid the problem that the manual tool is difficult to accurately control the force direction and the force, and is easy to cause the scratch, the knock and other physical damage to the mounting disc and the surrounding components in the compact space of engine, guarantee the reliability and stability of engine;

[0036] 3. The utility model discloses support ring connects all pull rod, has strengthened the overall structural strength of pull claw clamp component, made it keep stable in the stress process, avoided the deformation or displacement because of uneven stress, thereby the utility model discloses can be well adapted to the small turbojet engine mounting disc of different size, different installation state, effectively widened its application range. BRIEF DESCRIPTION OF DRAWINGS

[0037] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:

[0038] Figure 1 It is three -dimensional structure schematic diagram of the utility model;

[0039] Figure 2 It is overhead structure schematic diagram of the utility model;

[0040] Figure 3 It is side structure schematic diagram of the utility model;

[0041] Figure 4 It is the structure schematic diagram of the utility model's bottom view.

[0042] Mark and corresponding part name in the drawing:

[0043] 1-base, 2-jacking seat, 3-supporting seat, 4-pull rod, 5-pull claw, 6-positioning groove, 7-positioning seat, 8-fixed column, 9-supporting ring, 10-disassembly nut, 11-rotary drive mechanism. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further explained in detail below, the utility model is only used to explain the utility model, and does not limit the utility model.

[0045] Example 1

[0046] This embodiment 1 provides a kind of small turbojet engine mounting disc dismounting device, such as Figures 1-4As shown, including positioning seat 7, support assembly and puller clamp assembly, the positioning seat 7 is placed at the installation disc position of the engine to be repaired, wherein the middle part of the positioning seat 7 is a through hole matched with the outer wall of the installation disc, the upper part of the positioning seat 7 is provided with a support assembly, the upper end of the puller clamp assembly is arranged on the support assembly through a rotary drive mechanism 11, the lower end of the puller clamp assembly extends into the hollow through hole of the positioning seat 7 and abuts against the bottom surface of the installation disc, the rotary drive mechanism 11 drives the puller clamp assembly to move up and down relative to the support assembly, and the puller clamp assembly can rotate in the axial range of the rotary drive mechanism 11, and the lower end of the puller clamp assembly abuts against the bottom surface of the installation disc when the dismounting device is in the working state.

[0047] As shown in Figure 1 , the above-mentioned support assembly includes a base 1 and a fixed column 8, the base 1 is evenly distributed along the axis of the positioning seat 7, and one end of the three bases 1 is connected to the same point to form a support seat 3 supporting the puller clamp assembly, and the other end of the three bases 1 is arranged on the upper end surface of the positioning seat 7 through the fixed column 8, so that the base 1 and the positioning seat 7 are connected as a whole.

[0048] As shown in Figures 1-3 , the above-mentioned puller clamp assembly includes a jacking seat 2 and a pull rod 4, the jacking seat 2 is evenly distributed along the axis of the positioning seat 7, and the three jacking seats 2 are staggered with the three bases 1, and one end of the three jacking seats 2 is connected to the output end of the rotary drive mechanism 11, and the other end of each jacking seat 2 is connected to the pull rod 4, and the free end of the pull rod 4 is connected to the puller 5, and the puller 5 extends to the bottom surface of the installation disc, when the puller clamp assembly rotates in the axial range of the rotary drive mechanism 11, the puller 5 extends into the bottom surface of the installation disc and is positioned and hooked on the installation disc.

[0049] At the same time, in order to enhance the overall structural strength of the puller clamp assembly and keep it stable during the stress process, avoid deformation or displacement due to uneven stress, the inner side wall of all pull rods 4 is connected with at least one support ring 9, and the support ring 9 is a circular ring which can effectively disperse the stress on the pull rod 4 and prevent the pull rod 4 from deforming or displacing due to uneven stress.

[0050] As shown in Figure 2 and Figure 4 , the inner side wall of the above-mentioned positioning seat 7 is provided with a positioning groove 6, the positioning groove 6 is located on the rotation path of the pull rod 4, and the positioning groove 6 is provided between the adjacent bases 1, through the precise positioning and guiding of the positioning groove 6, the accuracy and stability of the dismounting operation are greatly improved, and the risk of damage to the engine installation disc and surrounding components due to operation errors is reduced.

[0051] As shown in Figures 1-4As shown in the figure, the rotating driving mechanism 11 comprises a screw rod, one end of the screw rod passes through the intersection of the jacking seat 2 along the axis of the positioning seat 7 and tightly supports the supporting seat 3, and the screw rod is in threaded connection with the jacking seat 2, the jacking seat 2 can be screwed in along the screw rod reciprocating motion by rotating the screw rod manually or by a motor, so that the mounting disc is separated from the engine shell, and the jacking seat 2 is connected with the supporting seat 3 through a dismounting nut 10, the dismounting nut 10 is in threaded connection with the screw rod, so that the direction of the pulling force transmitted by the rotating driving mechanism 11 is always stable and accurate.

[0052] The above detailed description is used to further explain the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model, and is not used to limit the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A micro turbojet engine mounting disc dismounting device, characterized in that, The utility model relates to a kind of dismounting device of installation disc, including: Positioning seat (7), the middle part of the positioning seat (7) is provided with the space matching the outer side wall of mounting disc, and the upper part of the positioning seat (7) is erected with support assembly; Puller clamp assembly, the upper end of the puller clamp assembly is erected on the support assembly by rotating drive mechanism (11), and the lower end of the puller clamp assembly extends to the space and is located with the mounting disc abutment; Wherein, the rotating drive mechanism (11) drives the puller clamp assembly can be moved up and down relative to the support assembly, and the puller clamp assembly can rotate in axial range around the rotating drive mechanism (11), and the lower end of the puller clamp assembly is in contact with the bottom surface of the mounting disc when the dismounting device is in working state.

2. The micro turbojet engine mounting disc dismounting device according to claim 1, characterized in that, The support assembly includes base (1) and fixed column (8); The base (1) is provided with multiple, multiple base (1) are evenly distributed along the axis of the positioning seat (7), and one end of multiple base (1) is connected to the same point, and the other end of multiple base (1) is erected on the upper end surface of the positioning seat (7) through the fixed column (8).

3. The micro turbojet engine mounting disc dismounting device according to claim 2, characterized in that The puller clamp assembly includes jacking seat (2) and pull rod (4); Wherein, the jacking seat (2) is provided with multiple, multiple jacking seat (2) are evenly distributed along the axis of the positioning seat (7), and one end of multiple jacking seat (2) is connected to the output end of the rotating drive mechanism (11), and the other end of multiple jacking seat (2) is connected to the pull rod (4), and the free end of the pull rod (4) is in contact with the bottom surface of the mounting disc.

4. The micro turbojet engine mounting disc dismounting device according to claim 3, characterized in that, The puller clamp assembly further includes support ring (9), and the outer side wall of the support ring (9) is connected with all the pull rod (4).

5. The micro turbojet engine mounting disc dismounting device according to claim 3, characterized in that, The jacking seat (2) and the base (1) are staggered.

6. The micro turbojet engine mounting disc dismounting device according to claim 3, characterized in that, The free end of the pull rod (4) is connected with puller (5), and the puller (5) extends to the bottom surface of the mounting disc.

7. The micro turbojet engine mounting disc dismounting device according to claim 3, characterized in that, The inner side wall of the positioning seat (7) is provided with positioning groove (6), and the positioning groove (6) is located on the rotation path of the pull rod (4).

8. The micro turbojet engine mounting disc dismounting device according to claim 7, characterized in that The positioning groove (6) is arranged between adjacent base (1).

9. The micro turbojet engine mounting disc dismounting device according to claim 3, characterized in that, The rotating drive mechanism (11) includes screw rod, one end of the screw rod passes through the intersection of the jacking seat (2) along the axis of the positioning seat (7) and is tightly connected with the support assembly, and the screw rod is threadedly connected with the jacking seat (2).

10. The device according to claim 9, wherein The rotating drive mechanism (11) further includes dismounting nut (10), and the dismounting nut (10) is located between the support assembly and the puller clamp assembly and is threadedly connected with the screw rod.

Images