Lifting appliance for thrust reverser of aircraft engine

Abstract

The utility model provides a lifting appliance for a thrust reverser of an aircraft engine. The lifting appliance comprises a lifting appliance body, a C-shaped frame assembly, a hinge lifting appliance, a pile-shaped supporting assembly and a locking piece, the sling body extends in a C shape, and a fixing piece is fixedly arranged on the back side of the middle; the C-shaped frame assembly extends in a C shape, the bottom end of the C-shaped frame assembly is rotationally connected with the lifting appliance body, a lifting belt for lifting is arranged at the top of the C-shaped frame assembly, and a fixed pulley is arranged on the lifting belt; an adjusting rope is connected between the lifting point hole and the fixed pulley, the adjusting rope is wound on the fixed pulley, and one end of the adjusting rope is fixed in the lifting point hole; the hinge lifting appliance is connected to the top end of the lifting appliance body and extends forwards from the lifting appliance body, and a detachable quick bolt is arranged on the hinge lifting appliance; the pile-shaped supporting assembly is vertically arranged at the bottom end of the lifting appliance body, and the locking piece is detachably connected with the top of the pile-shaped supporting assembly. The device has the characteristics of simple structure, low cost, practicability and reliability, can be conveniently adjusted, and improves the maintenance work efficiency.

Description

Technical Field

[0001] The utility model relates to the field of aviation maintenance equipment, and particularly relates to a sling for an aircraft engine thrust reverser device. Background Technique

[0002] The aircraft engine thrust reverser device mainly functions to reduce the landing roll distance of the aircraft. The thrust reverser device changes the flow direction of the normal air flow in the engine by guiding, so that a thrust component is generated in the direction opposite to the normal thrust, achieving the purpose of decelerating the aircraft. The disassembly, maintenance and replacement of the thrust reverser device are important parts of aircraft maintenance work and require the use of special tools and techniques. The disassembly and installation sling is a commonly used maintenance equipment among them, which can ensure the efficiency and safety of the work.

[0003] The existing disassembly and installation sling for the thrust reverser device has a complex structure and is difficult to maintain. It takes a long time to disassemble and install when maintaining the thrust reverser device, greatly increasing the aircraft maintenance time. Especially in emergency situations, quickly disassembling and installing the thrust reverser device is the key to improving aircraft maintenance efficiency and flight turnaround speed, and the complex equipment obviously does not meet the requirements. Moreover, the complex disassembly and installation sling increases the weight, increases the operation difficulty, and also increases the equipment cost. The disassembly and installation of the thrust reverser device may involve complex mechanical operations and there are safety risks. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sling for an aircraft engine thrust reverser device aiming at the problems existing in the prior art. The sling has the characteristics of simple structure, low cost, practicality and reliability, can be conveniently adjusted, and improves the efficiency of maintenance work.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A sling for an aircraft engine thrust reverser device includes a sling body, a hinge sling, a pile-shaped support assembly and a locking member; the sling body extends in a C shape, a fixing piece is fixedly arranged on the back side of the middle part thereof, and a hanging point hole is arranged on the fixing piece; the hinge sling is connected to the top end of the sling body and extends forward from the sling body, and a detachable quick pin is arranged on the hinge sling; the pile-shaped support assembly is erected at the bottom end of the sling body, and the locking member is detachably connected to the top of the pile-shaped support assembly. Further, it also includes a C-shaped frame assembly; the C-shaped frame assembly extends in a C shape, its bottom end is rotatably connected to the sling body, and the connection point between the C-shaped frame assembly and the sling body is above the fixing piece. A sling for hoisting is arranged at the top of the C-shaped frame assembly, and a fixed pulley is arranged on the sling; an adjusting rope is connected between the hanging point hole and the fixed pulley, the adjusting rope is wound around the fixed pulley and one end of the adjusting rope is fixed to the hanging point hole.

[0007] Further, along the extending direction of the hinge sling, at least two groups of detachable pins are arranged front and back.

[0008] Further, the hinge sling includes a horizontal shaft and a lifting claw; the horizontal shaft is connected to the top end of the sling body and extends forward, and the lifting claws are fixedly connected to both ends of the horizontal shaft.

[0009] Further, the lifting claws are hook-shaped.

[0010] Further, the locking member is provided with a through hole for installing a screw rod, and the locking member is provided with a connecting portion for cooperating with the pile-shaped support assembly; the pile-shaped support assembly is provided with a connecting groove for cooperating with the connecting portion, and the connecting portion is inserted into the connecting groove and detachably connected together by a quick pin.

[0011] Further, the pile-shaped support assembly is columnar, the bottom end of the sling body is provided with a horizontally arranged base, and the base is provided with a jack for cooperating with the pile-shaped support assembly. The bottom end of the pile-shaped support assembly is inserted into the jack and detachably connected by a quick pin.

[0012] The sling of the aircraft engine thrust reverser device of the present utility model adopts a simple and low-cost structure to realize the safe hoisting of the thrust reverser device, and can adjust the inclination amplitude by adjusting the rope. The equipment is reliable and efficient, can greatly improve the maintenance efficiency of the thrust reverser device, and improve the turnover rate of aircraft flights. At the same time, it can reduce the risk during the maintenance process and protect the safety of aircraft maintenance technicians. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural view of a sling of an aircraft engine thrust reverser device provided by an embodiment of the present utility model;

[0014] Figure 2 is a three-dimensional schematic view of a sling of an aircraft engine thrust reverser device provided by an embodiment of the present utility model;

[0015] Figure 3 is Figure 2 the bottom structural view of. Detailed Description of the Embodiments

[0016] The technical solutions of the present utility model will be described in detail below in conjunction with the drawings and specific embodiments. Embodiment 1

[0017] As Figures 1 to 3 shown, a sling of an aircraft engine thrust reverser device provided by the present utility model includes a sling body 1, a hinge sling 3, a pile-shaped support assembly 4 and a locking member 5; the sling body 1 extends in a C shape, and a fixing piece 11 is fixedly provided on the back side of the middle part, and a lifting point hole is provided on the fixing piece 11.

[0018] The hinge sling 3 is rotatably connected to the top end of the sling body 1 and extends forward from the sling body 1. A detachable quick pin is provided on the hinge sling 3.

[0019] The pile-shaped support assembly 4 is erected at the bottom end of the sling body 1, and the locking member 5 is detachably connected to the top of the pile-shaped support assembly 4.

[0020] The sling body 1 is in a C shape to match the arc-shaped outer contour of the counter-pushing device. It is respectively connected and fixed to the counter-pushing device through the hinge sling 3 and the pile-shaped support assembly 4 at the top and bottom ends to realize lifting.

[0021] Preferably, the utility model further includes a C-shaped frame assembly 2; the C-shaped frame assembly 2 extends in a C shape, its bottom end is rotatably connected to the sling body 1, and the connection point between the C-shaped frame assembly 2 and the sling body 1 is above the fixing piece 11. A sling 21 for hoisting is provided at the top of the C-shaped frame assembly 2, and a fixed pulley 22 is provided on the sling 21; an adjusting rope 23 is connected between the lifting point hole and the fixed pulley 22, the adjusting rope 23 is wound around the fixed pulley 22 and one end of the adjusting rope 23 is fixed to the lifting point hole.

[0022] The C-shaped frame assembly 2 is a component for adjusting the tilt angle by means of the hoisting fixed pulley 22. It can rotate and swing with the sling body 1 for counterweight balance. When the adjusting rope 23 is pulled, the length between the fixed pulley 22 and the fixing piece 11 can be adjusted, so as to adjust the tilt angle of the counter-pushing device.

[0023] The hinge sling 3 is connected to the fixed hinge at the top of the counter-pushing device through a quick pin. The locking member 5 is pre-installed at the bottom of the counter-pushing device, fixed on the counter-pushing device, and connected to the pile-shaped support assembly 4 through a quick pin. The pile-shaped support assembly 4 is connected to the bottom end of the sling body 1 to play a supporting role.

[0024] The utility model has two usage methods:

[0025] Method 1: When using a cantilever device for hoisting, directly connect to the cantilever device through the fixing piece 11 of the sling body 1. In this case, the cantilever device can directly control the sling body 1. The C-shaped frame assembly 2 is not necessary in this state.

[0026] Method 2: When using a hoisting device such as a crane, it can be connected to the crane through the sling on the C-shaped frame assembly. At the same time, the balance is adjusted through the adjusting rope 23.

[0027] The above two usage methods reflect that the utility model has high adaptability under different environmental conditions.

[0028] Preferably, at least two sets of detachable pins are arranged before and after the hinge sling 3 along the extension direction. The pins at different positions can be used to adjust different fixing points, so as to adjust the connection and hoisting with the thrust reverser. It can also be used to match thrust reversers of different models.

[0029] Specifically, as a preference, the hinge sling 3 includes a horizontal shaft 31 and a sling 32; the horizontal shaft 31 is connected to the top end of the sling body 1 and extends forward, and the sling 32 is fixedly connected to both ends of the horizontal shaft 31. Preferably, the sling 32 is also connected to both ends of the horizontal shaft 31 through quick pins for convenient disassembly and replacement. Preferably, the sling 32 is in a hook shape, which is convenient for hooking the top of the thrust reverser to assist in fixing the thrust reverser to prevent shaking.

[0030] Specifically, as a preference, the locking member 5 is provided with a through hole for installing a screw, and the locking member 5 is provided with a connecting portion 51 that cooperates with the pile-shaped support assembly 4; the pile-shaped support assembly 4 is provided with a connecting groove 41 that cooperates with the connecting portion 51, and the connecting portion 51 is inserted into the connecting groove 41 and is detachably connected together through a quick pin. The locking member 5 is a matching component between the thrust reverser and the pile-shaped support assembly 4, enabling the two to be quickly connected or disengaged as required. The locking member 5 is fixedly connected to the thrust reverser through a screw.

[0031] As a preference, the pile-shaped support assembly 4 is columnar, and the bottom end of the sling body 1 is provided with a horizontally arranged base 12, and the base 12 is provided with a socket 13 that cooperates with the pile-shaped support assembly 4. The bottom end of the pile-shaped support assembly 4 is inserted into the socket 13 and is detachably connected through a quick pin.

[0032] The sling for the aircraft engine thrust reverser of the present utility model adopts a simple and low-cost structure, can adapt to the shape of the thrust reverser for hoisting, and is convenient for aircraft maintenance work. It has high reliability and can protect the safety of maintenance technicians. It can freely adjust the tilt angle to meet the needs of maintenance operations and is easy to operate. Moreover, it effectively improves the maintenance efficiency and has a significant effect on improving the turnover rate of aircraft flights.

[0033] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A lifting device for an aircraft engine thrust reverser, characterized in that: It includes a sling body, a hinge sling, a pile-shaped support assembly and a locking piece; the sling body extends in a C shape, a fixing plate is fixedly provided on the back side of the middle part, and a hanging point hole is provided on the fixing plate; the hinge sling is connected to the top of the sling body, and extends forward from the sling body, and a detachable quick latch is provided on the hinge sling; the pile-shaped support assembly is erected at the bottom end of the sling body, and the locking piece is detachably connected to the top of the pile-shaped support assembly.

2. The aircraft engine thrust reverser sling according to claim 1, characterized in that: It also includes a C-shaped frame assembly; the C-shaped frame assembly extends in a C shape, and its bottom end is rotatably connected to the sling body, and the connection point between the C-shaped frame assembly and the sling body is located above the fixed plate, and a sling for lifting is provided on the top of the C-shaped frame assembly, and a fixed pulley is provided on the sling; an adjustment rope is connected between the lifting point hole and the fixed pulley, the adjustment rope is wrapped around the fixed pulley and one end of the adjustment rope is fixed to the lifting point hole.

3. The aircraft engine thrust reverser sling according to claim 1 or 2, characterized in that: The hinge hanger is provided with at least two groups of detachable latches at the front and rear along the extension direction.

4. The aircraft engine thrust reverser sling according to claim 1 or 2, characterized in that: The hinged hanger comprises a horizontal shaft and hanging claws; the horizontal shaft is connected to the top of the hanger body, and the hanging claws extending forward are fixedly connected to the two ends of the horizontal shaft.

5. The aircraft engine thrust reverser sling according to claim 4, characterized in that: The hanging claw is in a hook shape.

6. The aircraft engine thrust reverser sling according to claim 1 or 2, characterized in that: The locking piece is provided with a through hole for installing a screw rod, and the locking piece is provided with a connecting portion that cooperates with the pile-shaped support assembly; the pile-shaped support assembly is provided with a connecting groove that cooperates with the connecting portion, the connecting portion is inserted into the connecting groove, and is detachably connected together by a quick latch.

7. The aircraft engine thrust reverser sling according to claim 1 or 2, characterized in that: The pile-shaped support component is columnar, and a horizontally arranged base is provided at the bottom end of the sling body. A socket matching the pile-shaped support component is provided on the base. The bottom end of the pile-shaped support component is inserted into the socket and is detachably connected via a quick latch.

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