Telescopic mechanical adjusting tool for thrust vectoring nozzle actuating cylinder

Abstract

The invention belongs to the technical field of aero-engines, and particularly relates to a thrust vectoring nozzle actuator cylinder telescopic mechanical adjusting tool. Comprising a force-bearing rod, one end of the force-bearing rod is a threaded section with an external thread, and the other end of the force-bearing rod is provided with a clamping jaw; the movable bearing sleeve is sleeved on the inner side of the threaded section of the bearing rod in a sliding manner and is provided with a clamping jaw; the contraction nut is mounted on the threaded section; the two clamping jaws act on the piston rod of the actuating cylinder and the fixed end of the actuating cylinder respectively, the adjusting nut is screwed in to enable the movable force bearing sleeve to move towards the other end, and the two clamping jaws enable the piston rod to retract into the actuating cylinder. The expansion rod tool and the contraction rod tool are similar in structure, the two clamping jaws act on a piston rod of the actuator cylinder and the fixed end of the actuator cylinder respectively, the expansion nut is screwed out to enable the right supporting rod to move in the direction away from the left supporting rod, and the two clamping jaws enable the piston rod to stretch out.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aero-engines, and particularly relates to a mechanical adjusting tool for the extension and retraction of a vectoring nozzle actuator cylinder. BACKGROUND

[0002] At present, more and more aero-engines are equipped with vectoring deflection nozzles. In order to prevent deformation and damage of the nozzle mechanism, six limit blocks need to be installed in the guide rail groove of the vectoring nozzle during transportation and long-term storage of part of the vectoring engines. The length of the driving actuator cylinder of the nozzle needs to be adjusted during the installation and dismounting of the limit blocks. At present, when the installation and dismounting operations are performed on a test bench, the bench control system needs to be used to complete the connection of all the bench cables and control the extension and retraction of the nozzle actuator cylinder by using the bench host computer, and two bench press vehicles need to be connected to provide power oil sources. Since the press joint of the nozzle needs to be dismounted during the pressing, the fuel system needs to be filled with oil and aerated after the restoration of the assembly. The above work needs the cooperation of multiple professionals such as control and test, and at least 3 test workers and 1 controller are needed.

[0003] The prior art solution of the vectoring nozzle limit block uses a press vehicle to provide power, uses a bench to provide control cables, an electrical control system and an engine controller host computer to control the engine tail nozzle, and the installation of the limit block can be realized only under the cooperation of multiple systems and multiple personnel.

[0004] The conventional length adjustment of the nozzle actuator cylinder in the whole machine state needs to rely on the electrical system of the engine and the test bench, a bench press vehicle, an aerating tool and the like, and the dependence on equipment is high.

[0005] 2) The conventional length adjustment of the nozzle actuator cylinder needs to dismount the external pipeline connection press vehicle, provide a power oil source, use a host computer for control, and after completion, the pipeline needs to be restored and filled with oil and aerated, and the operation is too complex, multiple operators are needed, and the host computer operation post has high technical requirements.

[0006] 3) When the length of the nozzle actuator cylinder is normally adjusted and the installation or dismounting of the limit block is completed, at least 4 people still need to work together for about 2.5 hours under the premise of not considering the installation of the engine bench, and the operation cycle is long and the efficiency is low.

[0007] 4) The press vehicle, host computer and engine controller used in the conventional method all need different types of power supply, the pressing process and the oil filling and aerating after completion involve fuel consumption, and the whole work needs certain energy consumption. SUMMARY

[0008] In order to solve the above problems, the application provides a mechanical adjusting tool for the extension and retraction of a vectoring nozzle actuator cylinder, which comprises:

[0009] The contraction rod tool comprises:

[0010] A force bearing rod, one end of which is a threaded segment with external threads, and the other end of which has a claw;

[0011] A mobile force bearing sleeve, which is slidably sleeved inside the threaded segment of the force bearing rod, and which has a claw thereon;

[0012] A contraction nut, which is installed on the threaded segment;

[0013] Two claws, which respectively act on the piston rod of the actuator cylinder and the fixed end of the actuator cylinder, and which make the mobile force bearing sleeve move towards the other end by rotating the adjustment nut, so that the piston rod is retracted into the actuator cylinder;

[0014] A rod expansion tool, comprising:

[0015] A left support rod, one end of which is a threaded segment with external threads, and the other end of which has a claw;

[0016] A right support rod, one end of which is slidably sleeved outside the threaded segment of the left support rod, and the other end of which has a claw;

[0017] An expansion nut, which is installed on the threaded segment of the left support rod;

[0018] Two claws, which respectively act on the piston rod of the actuator cylinder and the fixed end of the actuator cylinder, and which make the right support rod move away from the left support rod by rotating the expansion nut, so that the piston rod is extended.

[0019] Preferably, the force bearing rod has a handle.

[0020] Preferably, the left support rod and the right support rod each have a handle.

[0021] Preferably, the end portions of the left support rod and the right support rod are provided with arc-shaped contact surfaces matched with the circular housings of the hinged knot of the actuator cylinder.

[0022] Preferably, the end portions of the claws are respectively provided with fork-shaped structures matched with the hinged mounting seats and the force bearing ring connecting seats.

[0023] Preferably, the force bearing rod, the left support rod and the right support rod are made of high-strength alloy steel.

[0024] The tool has the following advantages: 1) simple structure, safe and reliable operation; 2) strong scene applicability, not dependent on other large equipment; 3) simple operation, without damaging the original oil seal of the engine; 4) high efficiency, the adjustment can be completed within 0.5h. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a contraction rod tool;

[0026] Figure 2 is a rod expansion tool;

[0027] Figure 3 is a schematic diagram of the working principle of the retraction rod tool;

[0028] Figure 4 is a schematic diagram of the working principle of the expansion rod tool. DETAILED DESCRIPTION

[0029] To make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. Identical or similar reference numerals represent identical or similar elements or elements having identical or similar functions throughout the drawings. The described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below with reference to the drawings. As shown in the drawings, the present application provides a vector nozzle actuator telescopic mechanical adjustment tool, comprising: Figures 1-4

[0030] The retraction rod tool comprises:

[0031] The force-bearing rod 1 has a threaded segment with external threads at one end and a clamping jaw at the other end;

[0032] The movable force-bearing sleeve 3 is slidably sleeved on the inside of the threaded segment of the force-bearing rod 1 and has a clamping jaw thereon;

[0033] The retraction nut 4 is installed on the threaded segment;

[0034] The two clamping jaws act on the actuator piston rod and the actuator fixed end, respectively, and the movable force-bearing sleeve 3 moves towards the other end by rotating the adjustment nut 4, and the two clamping jaws make the piston rod retract into the actuator;

[0035] The expansion rod tool comprises:

[0036] The left support rod 01 has a threaded segment with external threads in the middle and a clamping jaw at the other end;

[0037] The right support rod 03 has a clamping jaw at one end and is slidably sleeved on the outside of the threaded segment of the left support rod 01;

[0038] The expansion nut 04 is installed on the threaded segment of the left support rod 01;

[0039] ​Two clamps are respectively arranged on the actuator cylinder piston rod and the actuator cylinder fixed end, the right support rod 03 is moved away from the left support rod 01 by rotating the expansion nut 04, and the two clamps make the piston rod extend.

[0040] The end of the left support rod and the right support rod is provided with a circular arc contact surface matched with the hinge knot circular shell of the actuator cylinder. Figure 3 The expansion rod is used for the hinge mounting seat and the force ring connecting seat by the bifurcated structure, the expansion force is applied by the tightening bolt, the actuator cylinder piston is moved to extend, the adjustment of the actuator cylinder stroke of the mechanism is realized, and the specific use is as follows Figure 4 .

[0041] Preferably, the end of the clamp is respectively provided with a fork structure matched with the hinge mounting seat and the force ring connecting seat.

[0042] Preferably, the force rod 1, the left support rod 01 and the right support rod 03 are made of high-strength alloy steel material.

[0043] The advantages of the tool of the application are: 1 simple structure, safe and reliable operation; 2 strong scene applicability, not dependent on other large equipment; 3 simple operation, without damaging the original oil seal of the engine; 4 high efficiency, can complete the adjustment within 0.5h.

[0044] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A vectoring nozzle actuator telescopic mechanical adjustment tooling, characterized in that, The utility model relates to a retractable and extendable rod tool, comprising: a force bearing rod (1) having a threaded section with external thread at one end and a claw at the other end; a movable force bearing sleeve (3) slidably sleeved inside the threaded section of the force bearing rod (1) and having a claw thereon; a retracting nut (4) installed on the threaded section; two claws respectively acting on the piston rod and the fixed end of the actuator cylinder, and the movable force bearing sleeve (3) moves towards the other end by rotating the adjusting nut (4), and the two claws make the piston rod retract into the actuator cylinder; an expanding rod tool, comprising: a left support rod (01) having a threaded section with external thread at the middle and a claw at the other end; a right support rod (03) having one end slidably sleeved outside the threaded section of the left support rod (01) and the other end having a claw; an expanding nut (04) installed on the threaded section of the left support rod (01); two claws respectively acting on the piston rod and the fixed end of the actuator cylinder, and the right support rod (03) moves away from the left support rod (01) by rotating the expanding nut (04), and the two claws make the piston rod extend. The force bearing rod (1) has a handle (2) thereon.

2. The vectoring nozzle actuator telescopic mechanical adjustment tooling according to claim 1, characterized in that, The left support rod (01) and the right support rod (03) each have a handle (02) thereon.

3. The vectoring nozzle actuator telescoping mechanical adjustment tooling of claim 1, wherein, The end portions of the left support rod and the right support rod are provided with arc-shaped contact surfaces matched with the circular housings of the hinged actuator cylinder.

4. The vectoring nozzle actuator telescoping mechanical adjustment tooling of claim 1, wherein, The end portions of the claws are respectively provided with fork-shaped structures matched with the hinged mounting seat and the force bearing ring connecting seat.

5. The vectoring actuator telescopic mechanical adjustment tooling of claim 1, wherein, The force bearing rod (1), the left support rod (01) and the right support rod (03) are made of high-strength alloy steel material.

6. The vectoring actuator telescopic mechanical adjustment tooling of claim 1, wherein, ​

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