Disassembling and assembling tool for flange structure of motor
By designing a motor flange structure disassembly and assembly tool, the problems of damage to the mating surface and multi-person collaboration during the disassembly of oil-cooled AC generators were solved, enabling efficient disassembly and assembly by a single person, and reducing safety hazards and costs.
Patent Information
- Application Number
- CN202423067557.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing technology can easily damage the mating surfaces of the generator and main reducer accessory casings when disassembling an oil-cooled alternator, and requires multiple people to work together, posing safety hazards and incurring high costs.
Design a tool for disassembling and assembling a motor flange structure, including components such as a double-ear support, a push rod support, an open clamping seat, and a locking screw. The tool achieves stable disassembly and assembly of the motor through the clamping and push rod structure, reducing manpower consumption and protecting the mating surfaces.
It improves the efficiency of individual disassembly and assembly, reduces safety hazards and costs, lowers personal safety risks, saves manpower and costs, and protects the mating surfaces of the generator and accessory housing.
Smart Images
Figure CN223625729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the maintenance technology of helicopter oil-cooled alternators, specifically to a tool for disassembling and assembling motor flange structures. Background Technology
[0002] The generator in an aircraft's AC power system typically uses an oil-cooled AC generator, mounted on the main reducer accessory housing. Due to the unique installation location and method, disassembly and installation often require brute force and swaying, which can easily cause friction at the mating surfaces of the generator and the housing, resulting in varying degrees of damage. Furthermore, it's difficult for workers to control the lateral force during disassembly; excessive force can cause the generator surface and connectors to scrape against surrounding hydraulic lines and finished components. Moreover, due to the generator's weight, high installation position, and limited worker platform space, at least three people are required to work at height, increasing safety risks and significantly impacting work quality and efficiency. Therefore, improving the maintenance technology for motors, especially oil-cooled AC generators, is indeed necessary. Utility Model Content
[0003] The purpose of this utility model is to provide an oil-cooled AC generator disassembly and assembly tool that is designed based on the current situation, which can save manpower, is easy to operate, improve the efficiency of disassembly and maintenance of oil-cooled AC generators, reduce the risk of personal safety and finished product safety, and ensure the quality of generator maintenance.
[0004] The technical solution of this utility model is:
[0005] To fundamentally solve the problem of damage to the mating surfaces, a plug-in opening method cannot be adopted. If the material selected has excessive strength, it will damage the mating surfaces of the generator or the main reducer accessory casing during insertion. If the material has insufficient strength, it will not be sustainable for continued use. Furthermore, this plug-in disassembly method inevitably requires some movement to create a gap, which still carries the risk of damage to the generator body and the main reducer accessory casing.
[0006] A tool for disassembling and assembling a motor flange structure is provided, including a double-ear support 1, a push rod support 2, an open clamp 3, a locking screw 4, a rotating shaft 5, a hinge support 6, a push rod 8, a lifting ring 9, an adjusting nut 10, a support rod 11, a clamp 13, a locking nut 101, and a lifting tool 104.
[0007] The clamp 13 consists of two opposing semi-circular clamps, namely a first semi-circular clamp and a second semi-circular clamp. One end of the first semi-circular clamp and the second semi-circular clamp is provided with a hinge support, and the other end of the first semi-circular clamp and the second semi-circular clamp is provided with an open slot 3. Each hinge support is hinged to a locking screw 4 through a rotating shaft. Each locking screw 4 can rotate and be embedded in the open slot of the opposite semi-circular clamp. The locking screw 4 is threadedly engaged with the locking nut 101, which can make the locking nut 101 lock with the open slot, so that the two opposing semi-circular clamps are in a clamping state. Rotating the locking nut 101 can make the two semi-circular clamps tightly clamp the outer cylinder of the motor.
[0008] Both the first and second semi-ring hoops are provided with double-ear support 1 and top rod support 2. The ear holes of the double-ear support 1 are through which a support rod passes. An adjusting nut is provided between the two ears of the double-ear support 1, and the adjusting nut is threadedly engaged with the support rod. Rotating the adjusting nut can make the support rod move axially relative to the ear holes of the double-ear support. The rear end of the support rod is used to abut against the motor housing.
[0009] A push rod 8 passes through the push rod support 2. The push rod 8 and the push rod support are threaded together. Rotating the push rod 8 allows the push rod to move axially relative to the push rod support. The front end of the push rod is used to abut against the bolt end of the motor flange. The force applied to the front end of the push rod is opposite to the force applied to the rear end of the support rod. The rear end of the push rod is a rotating operating end.
[0010] The first and second semi-circular hoops are also provided with lifting rings 9. The lifting device is connected to the lifting rings and can lift the clamp 13.
[0011] Furthermore, the lifting device is a sling or strap. Even further, the lifting device includes a buckle 103 capable of locking the lifting device.
[0012] Furthermore, the end of the support rod is a curved rod, which allows the support rod to be rotated and the position of the end of the support rod to be adjusted.
[0013] Furthermore, a washer 102 is provided between the locking nut and the open seat, and is fitted onto the locking screw.
[0014] Furthermore, a rubber pad layer 14 is provided on the inner side of the first and second semi-ring hoops to protect the outer surface of the motor cylinder.
[0015] Furthermore, a protective sleeve 7 is fitted at the front end of the push rod. The protective sleeve and the push rod are a sliding assembly, and the protective sleeve can be fitted onto the connecting bolts of the motor flange.
[0016] The advantages of this utility model are: (1) It saves manpower: the original disassembly and installation method of holding the generator has been changed to the current hand-held disassembly and installation method, which reduces the physical exertion of the operators to a certain extent, and changes the original four-person alternating operation to be completed by two people independently.
[0017] (2) Prevents three types of damage: The original disassembly and assembly method has a high probability of damaging the paint layer on the surface and mating surfaces of this type of generator. Such paint damage requires touch-up painting. Using this auxiliary tool can greatly reduce the probability of such damage and prevent three types of damage to a certain extent.
[0018] (3) Cost savings: If no auxiliary tools are used for disassembly and assembly, inexperienced personnel may not be able to accurately control the force during the disassembly and assembly process, which will cause excessive compression of the mating surface between the motor and the main reducer accessory housing. This will damage the O-ring seals at the connection between the peripheral finished products and the main reducer accessory housing, as well as the seals of the oil inlet and outlet pipes. There are 5 seals on a generator, with a total price of 1265 yuan. The average annual failure rate of this series of generators is 8 units, and each unit has 2 generators. Therefore, the estimated annual cost savings is 20240 yuan. If this type of tool is used for disassembly and assembly, the occurrence of the above problems can be reduced, which saves the disassembly and assembly cost of each unit to a certain extent.
[0019] (4) Reduced the probability of safety hazards: With the original disassembly and assembly method, the generator is located on the main reduction platform, requiring one person to stand on it during disassembly and assembly. The limited space on the main reduction platform increases the probability of personal safety hazards and damage to the finished product due to this alternating work arrangement. This new disassembly and assembly method reduces these probabilities to some extent. Furthermore, the tool's labor-saving design assists in installation, preventing potential stator rubbing and other malfunctions and hazards that may occur if the motor splines are not accurately connected to the transmission system, thus improving the quality and efficiency of disassembly and assembly.
[0020] (5) This fills a technological gap: First, no suitable disassembly and assembly tool was provided for maintenance. Second, the manufacturer of this type of generator did not include a convenient maintenance device on the generator body. The design of this auxiliary disassembly and assembly tool fills this technological gap and facilitates the future use and maintenance of this type of generator. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a side view of the structure of this utility model;
[0023] Figure 3This is a schematic diagram of the installation of the semi-circular hoop;
[0024] Figure 4 This is a schematic diagram of the locking screw installation;
[0025] Figure 5 A schematic diagram of support rods;
[0026] Figure 6 A schematic diagram of the operation and hoisting of the top rod;
[0027] Among them: double ear plate support 1, top rod support 2, open card seat 3, locking screw 4, rotating shaft 5, hinge support 6, top rod 8, lifting ring 9, adjusting nut 10, support rod 11, first half ring hoop 12, second half ring hoop 13, rubber pad 14, locking nut 101, washer 102, cable buckle 103, lifting tool 104. Detailed Implementation
[0028] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples may be described, and these examples should not be construed as limited to those set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.
[0029] A tool for disassembling and assembling a motor flange structure is provided, including a double-ear support 1, a push rod support 2, an open clamp 3, a locking screw 4, a rotating shaft 5, a hinge support 6, a push rod 8, a lifting ring 9, an adjusting nut 10, a support rod 11, a clamp 13, a locking nut 101, and a lifting tool 104.
[0030] The clamp 13 consists of two opposing semi-circular clamps, namely a first semi-circular clamp and a second semi-circular clamp. One end of the first semi-circular clamp and the second semi-circular clamp is provided with a hinge support, and the other end of the first semi-circular clamp and the second semi-circular clamp is provided with an open slot 3. Each hinge support is hinged to a locking screw 4 through a rotating shaft. Each locking screw 4 can rotate and be embedded in the open slot of the opposite semi-circular clamp. The locking screw 4 is threadedly engaged with the locking nut 101, which can make the locking nut 101 lock with the open slot, so that the two opposing semi-circular clamps are in a clamping state. Rotating the locking nut 101 can make the two semi-circular clamps tightly clamp the outer cylinder of the motor.
[0031] Both the first and second semi-ring hoops are provided with double-ear support 1 and top rod support 2. The ear holes of the double-ear support 1 are through which a support rod passes. An adjusting nut is provided between the two ears of the double-ear support 1, and the adjusting nut is threadedly engaged with the support rod. Rotating the adjusting nut can make the support rod move axially relative to the ear holes of the double-ear support. The rear end of the support rod is used to abut against the motor housing.
[0032] A push rod 8 passes through the push rod support 2. The push rod 8 and the push rod support are threaded together. Rotating the push rod 8 allows the push rod to move axially relative to the push rod support. The front end of the push rod is used to abut against the bolt end of the motor flange. The force applied to the front end of the push rod is opposite to the force applied to the rear end of the support rod. The rear end of the push rod is a rotating operating end.
[0033] The first and second semi-circular hoops are also provided with lifting rings 9. The lifting device is connected to the lifting rings and can lift the clamp 13.
[0034] The lifting device is a sling or strap. Furthermore, the lifting device includes a buckle 103, which can lock the lifting device in place.
[0035] The end of the support rod is a curved rod, which can rotate the support rod and adjust the position of the end of the support rod.
[0036] A washer 102 is provided between the locking nut and the open seat, and the washer is fitted on the locking screw.
[0037] A rubber pad layer 14 is provided on the inner side of the first and second semi-circular hoops to protect the outer surface of the motor cylinder.
[0038] The front end of the push rod is fitted with a protective sleeve 7, and the protective sleeve and the push rod are a sliding sleeve. The protective sleeve can be fitted onto the connecting bolts of the motor flange.
[0039] Descriptions of various advantageous arrangements have been shown for illustrative and descriptive purposes, but such descriptions are not intended to be exclusive or limited to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. Furthermore, different advantageous examples may describe different advantages compared to other advantageous examples. One or more examples have been selected and described in order to best illustrate the principles and practical application of the examples, and to enable those skilled in the art to understand that this disclosure contains various examples with various modifications suitable for the particular intended use.
Claims
1. A tool for disassembling and assembling a motor flange structure, characterized in that: It includes a double-ear plate support (1), a top rod support (2), an open card seat (3), a locking screw (4), a rotating shaft (5), a hinge support (6), a top rod (8), a lifting ring (9), an adjusting nut (10), a support rod (11), a clamp (13), a locking nut (101), and a lifting device (104); The clamp (13) consists of two opposing semi-circular clamps, namely the first semi-circular clamp and the second semi-circular clamp. One end of the first semi-circular clamp and the second semi-circular clamp is provided with a hinge support, and the other end of the first semi-circular clamp and the second semi-circular clamp is provided with an open slot (3). Each hinge support is hinged to a locking screw (4) through a rotating shaft. Each locking screw (4) can rotate and be embedded in the open slot of the opposite semi-circular clamp. The locking screw (4) is threadedly engaged with the locking nut (101), which can make the locking nut (101) lock with the open slot, so that the two opposing semi-circular clamps are in a clamping state. Rotating the locking nut (101) can make the two semi-circular clamps tightly clamp the outer cylinder of the motor. Both the first and second half rings are provided with double ear plate supports (1) and top rod supports (2). The ear plate holes of the double ear plate supports (1) are through which a support rod passes. An adjusting nut is provided between the two ear plates of the double ear plate supports (1), and the adjusting nut is threadedly engaged with the support rod. Rotating the adjusting nut can make the support rod move axially relative to the ear plate holes of the double ear plate supports. The rear end of the support rod is used to abut against the motor housing. A push rod (8) passes through the push rod support (2). The push rod (8) and the push rod support are threaded together. Rotating the push rod (8) allows the push rod to move axially relative to the push rod support. The front end of the push rod is used to abut against the bolt end of the motor flange. The force applied to the front end of the push rod is opposite to the force applied to the rear end of the support rod. The rear end of the push rod is a rotating operating end. The first and second half-ring hoops are also provided with lifting rings (9), and the lifting device is connected to the lifting rings and can lift the hoop.
2. The motor flange structure disassembly and assembly tool as described in claim 1, characterized in that: The lifting equipment is a sling or strap.
3. The motor flange structure disassembly and assembly tool as described in claim 1, characterized in that: The end of the support rod is a curved rod, which can rotate the support rod and adjust the position of the end of the support rod.
4. The motor flange structure disassembly and assembly tool as described in claim 1, characterized in that: A washer (102) is provided between the locking nut and the open seat, and the washer is fitted on the locking screw.
5. The motor flange structure disassembly and assembly tool as described in claim 1, characterized in that: A rubber pad layer (14) is provided on the inner side of the first and second semi-circular hoops.
6. The motor flange structure disassembly and assembly tool as described in claim 1, characterized in that: The front end of the top rod is fitted with a protective sleeve (7), and the protective sleeve and the top rod are a sliding sleeve that can be fitted onto the connecting bolts of the motor flange.
7. The motor flange structure disassembly and assembly tool as described in claim 2, characterized in that: The lifting device includes a sling (103) which can lock the lifting device in place.