CN112497129A

CN112497129A - Universal switching device for torque wrench of aircraft engine

Info

Publication number: CN112497129A
Application number: CN202011367309.6A
Authority: CN
Inventors: 白彦; 唐文杰; 赵晓鹏; 董磊磊; 许英东
Original assignee: AECC Sichuan Gas Turbine Research Institute
Current assignee: AECC Sichuan Gas Turbine Research Institute
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-03-16

Abstract

The invention belongs to the technical field of assembly of aero-engines, and particularly relates to a universal adapter for an aero-engine torque wrench. The method comprises the following steps: the wrench switching device comprises a wrench switching main body, wherein a first square groove is formed in one end of the wrench switching main body and used for being connected with a torque wrench, a square groove is formed in one end of the wrench switching main body and used for being connected with the torque wrench, and a second square groove is formed in the other end of the wrench switching main body and used for being connected with a general wrench; the concave square head sleeve is arranged in the first square groove and used for adjusting the size of the first square groove so as to be suitable for torque wrenches with different sizes; and the convex square joint is arranged in the second square groove and is used for connecting a universal wrench. The invention solves the problem that the sizes of the torque measuring wrench and the tool wrench are not matched in the assembling process of the engine.

Description

Universal switching device for torque wrench of aircraft engine

Technical Field

The invention belongs to the technical field of assembly of aero-engines, and particularly relates to a universal adapter for an aero-engine torque wrench.

Background

In the assembly process of an aircraft engine, in order to connect thousands or even tens of thousands of parts, a plurality of threaded connecting fasteners are generally needed, smaller ones have common bolt and nuts, larger ones have special-structure threaded fasteners, such as compression nuts for compressing the inner ring and the outer ring of a larger bearing, and the like. The aeroengine is honored as the flower reputation of industry, consequently all higher to the requirement in all aspects, and fastening mode and moment size etc. of every connecting fastener all have corresponding requirement, if not satisfied general tool then can be for it designs supporting frock in order to guarantee can reach the tightening mode and the moment size of requirement. This results in the use of torque measuring wrenches for different adapters and a large number of universal tool sockets and special tool wrenches designed to tighten fasteners at different locations on the engine during the engine assembly process. Therefore, the square joint of the torque measuring wrench is often not matched with a universal tool sleeve or a special tool interface designed, so that the difficulty of incapability of using is caused.

Disclosure of Invention

The purpose of the invention is as follows:

the utility model provides a general switching device of aeroengine moment spanner to solve above often in the aeroengine assembling process the square joint of moment measurement spanner and the unmatched phenomenon of the special frock interface of universal tool sleeve or design cause the difficult problem of unable use.

The technical scheme is as follows:

in a first aspect, a universal adapter device for an aircraft engine torque wrench is provided, which comprises: the wrench switching device comprises a wrench switching main body, wherein one end of the wrench switching main body is provided with a first square groove for connecting a torque wrench, and the other end of the wrench switching main body is provided with a second square groove for connecting a universal wrench; the concave square head sleeve is arranged in the first square groove and used for adjusting the size of the first square groove so as to be suitable for torque wrenches with different sizes; and the convex square joint is arranged in the second square groove and is used for connecting a universal wrench.

Further, the concave square head sleeve comprises a first concave square head sleeve, a second concave square head sleeve and a third concave square head sleeve, the first concave square head sleeve is sleeved in the first square groove, the second concave square head sleeve is sleeved in the first concave square head sleeve, and the third concave square head sleeve is sleeved in the second concave square head sleeve.

Furthermore, the concave square head sleeve is fixed with one end of the wrench switching main body through a pin.

Furthermore, the concave square head sleeve is fixed with one end of the wrench switching main body through a bolt.

Furthermore, the convex square joints are multiple, wherein the head sizes of the convex square joints are the same as the sizes of the second square grooves, the tail sizes of the convex square joints are respectively matched with the sizes of the interfaces of various universal wrenches,

furthermore, the head of the convex square joint is provided with a threaded hole, and a bolt penetrates through the bottom of the first square groove to fix the convex square joint.

Furthermore, the head of the convex square joint is fixed with the other end of the wrench switching main body through a pin.

Furthermore, the head of the convex square joint is fixed with the other end of the wrench adapting main body through a bolt.

Has the advantages that:

because the moment input interface of spanner switching main part upper end has the multiple, and the moment output interface of its lower extreme also has the multiple, very big solution the moment in the engine assembling process measure the spanner and the unmatched difficult problem of frock spanner joint size. The universal switching device for the torque wrench is simple in structure, convenient to operate, high in reliability, low in cost, high in universality and high in popularization value.

Drawings

Fig. 1 is a structural diagram of a universal adapter for a torque wrench according to an embodiment of the present invention.

Fig. 2 is a front sectional view and a top view of a wrench adaptor body according to an embodiment of the present invention.

FIG. 3 is a front view and a top cross-sectional view of a female square head cover according to an embodiment of the invention.

The wrench adapter comprises a wrench adapter body 1, a first concave square head sleeve (26-19) 2, a second concave square head sleeve (19-13) 3, a third concave square head sleeve (13-10) 4, a convex square head 5 (comprising 4 joints with different sizes), a hexagonal head screw 6 and a hexagon socket head screw 7.

Detailed Description

The universal adapter device for the torque wrench of the aircraft engine, disclosed by the invention, is shown in figure 1. The universal switching device for the torque wrench comprises a wrench switching main body 1, a concave square head sleeve (26 is changed into 19)2, a concave square head sleeve (19 is changed into 13)3, a concave square head sleeve (13 is changed into 10)4, a convex square head 5 (containing 4 connectors with different sizes), a hexagonal head screw 6 and an inner hexagonal head screw 7. As shown in fig. 2, the upper end of the wrench adapting body 1 is a torque input interface, the lower end thereof is a torque output interface, and the size of the concave square hole of the torque input interface is 26 mm, which can be matched with a torque measuring wrench joint with a corresponding size. As shown in fig. 3, the concave square head sleeve (26 to 19)2 can also be connected to the concave square hole of the torque input interface on the wrench adapter body 1, so as to realize the torque input of the torque measuring wrench square joint with 19 mm. The same concave square head sleeve (19 to 13)3 can be inserted into the concave square head sleeve (26 to 19)2, and the concave square head sleeve (13 to 10)4 can be inserted into the concave square head sleeve (19 to 13)3, so that the connection of torque measuring wrenches with different joint sizes is realized. The torque output interface at the lower end of the wrench adapting main body 1 can be connected with four convex square heads 5, and the selection of the convex square heads 5 can be determined according to the adapting size of a specific special tool wrench. In order to fix the four concave square heads and the four convex square heads on the wrench adapting main body 1, the side surface of the wrench adapting main body 1 is provided with a threaded hole matched with a corresponding screw, and the concave square head sleeves with different quantities can be fixed by adjusting the screwing length of the screws. The axial center of the wrench adapting main body 1 is provided with a through hole, and the convex square head 5 can be fixed by a corresponding screw. Because the torque input interface of spanner switching main part 1 upper end has 4, and the torque output interface of its lower extreme also has 4, consequently general switching device of this torque spanner has 16 switching forms, very big solution the moment in the engine assembling process measure the spanner and the unmatched difficult problem of frock spanner joint.

The above is only an example of the present invention, and those skilled in the art can change the specific size and the size and number of the female square head sleeve and the size and number of the male square joint according to the practical application to realize different combinations. The step-by-step butt joint of the concave square head sleeves facilitates the storage of parts and prevents small parts from being lost due to independent storage.

The method for using the adapter device of the present invention is further described in detail below with reference to the drawings of the specification.

Fig. 1 is a structural diagram of a universal adapter for an aircraft engine torque wrench according to the present invention. The device comprises a wrench switching main body 1, a concave square head sleeve (26 is changed into 19)2, a concave square head sleeve (19 is changed into 13)3, a concave square head sleeve (13 is changed into 10)4, a convex square head 5 (comprising 4 output connectors with different sizes, and the connecting size of each connector and the output end of the wrench switching main body 1 is the same), a hexagonal head screw 6 and a hexagon socket head screw 7. If the selected torque measuring wrench joint is not matched with the used tool wrench joint, the universal adapter device for the torque wrench can be used for switching, if the size of the torque measuring wrench convex square joint selected by people is 10X10 mm, and the size of the tool wrench concave square joint is 19X19 mm, the operation process is as follows: according to the selected torque measurement wrench joint size, a concave square head sleeve (26-19), a concave square head sleeve (19-13) 3 and a concave square head sleeve (13-10) 4 need to be sleeved on the torque input interface at the upper end of a wrench switching main body 1 in sequence, and then the three concave square head sleeves are prevented from falling out of the switching main body 1 by adjusting the screw screwing depth of the side surface, so that the switching between the switching device and the concave square head with the torque measurement wrench joint size of 10X10 mm is completed. According to the fact that the size of the concave square head of the tool wrench is 19X19 mm, the convex square head with the size of 19X19 mm is selected from the four convex square heads 5, the convex square head 5 with the size of 19X19 mm is installed on the torque output interface at the lower end of the wrench adapter main body 1, the wrench adapter main body 1 is fastened with the convex square head 5 through the hexagon socket head screw, and therefore the installation of the universal adapter device for the torque wrench in the situation is completed. When the universal torque wrench is used, the 10X10 mm convex square head of the torque measuring wrench is inserted into the 10X10 mm torque input end of the universal torque wrench adapter, the output convex square head with the size of 19X19 mm of the universal torque wrench adapter is connected to a tool wrench with a 19X19 mm concave square head interface, and the compression nut is fastened according to a specified tightening mode and specified torque.

In addition to the above standard usage, the nut of the aircraft engine can be disassembled and assembled by independently using the convex square head 5 to match with a tool wrench and a corresponding finished product wrench. If when a tool spanner (the center of the spanner is a square hole) is adopted to disassemble and assemble a large nut on an aircraft engine rotor (the moment value does not need to be measured), a convex square head 5 matched with an inner square hole on the tool spanner can be selected to be inserted into the inner square hole on the tool spanner, and the nut can be disassembled and assembled by matching with a corresponding finished product open spanner.

In addition, the nut of the aero-engine can be disassembled and assembled by using the concave square head sleeve matched with the tool wrench and the corresponding finished product wrench independently or in combination. If the tool spanner (the spanner center is the square hole) is not matched with the finished product convex square spanner or the torque spanner in size (the torque value does not need to be measured), the concave square head sleeve or the concave square head sleeves matched with the inner square hole on the tool spanner can be selected to be combined and inserted into the inner square hole on the tool spanner, and then the nut can be disassembled and assembled by matching with the corresponding finished product convex square spanner or the torque spanner.

Claims

1. The utility model provides a general switching device of aeroengine moment spanner which characterized in that includes:

the wrench switching device comprises a wrench switching main body (1), wherein a first square groove is formed in one end of the wrench switching main body (1) and used for being connected with a torque wrench, and a second square groove is formed in the other end of the wrench switching main body (1) and used for being connected with a universal wrench;

the concave square head sleeve is arranged in the first square groove and used for adjusting the size of the first square groove so as to be suitable for torque wrenches with different sizes;

and the convex square joint (5), wherein the convex square joint (5) is arranged in the second square groove and is used for connecting a universal wrench.

2. The adapter device according to claim 1, wherein the concave square head sleeve comprises a first concave square head sleeve (2), a second concave square head sleeve (3) and a third concave square head sleeve (4), the first concave square head sleeve (2) is sleeved in the first square groove, the second concave square head sleeve (3) is sleeved in the first concave square head sleeve (2), and the third concave square head sleeve (4) is sleeved in the second concave square head sleeve (3).

3. The adapter device according to claim 1, wherein the concave square head sleeve is fixed with one end of the wrench adapter body (1) through a pin.

4. The adapter according to claim 1, wherein the concave square head sleeve is fixed with one end of the wrench adapter body (1) through a bolt.

5. The adapter according to claim 1, characterized in that the male square joint (5) is a plurality of male square joints, wherein the head size of the plurality of male square joints (5) is the same as the size of the second square groove, and the tail size of the plurality of male square joints (5) is respectively matched with the interface size of various universal wrenches.

6. An adapter device according to claim 1, characterized in that the head of the male square joint (5) is provided with a threaded hole, and a bolt is passed through the bottom of the first square groove to fix the male square joint (5).

7. The adapter device according to claim 1, wherein the head of the square male connector (5) is fixed to the other end of the wrench adapter body (1) by a pin.

8. The adapter according to claim 1, wherein the head of the square male connector (5) is fixed to the other end of the wrench adapter body (1) by a bolt.