Convenient dismounting and mounting device for helicopter wheel hub

Abstract

The utility model provides a convenient dismounting and mounting device for a helicopter wheel hub, and the device comprises a quincunx sleeve base which is provided with a mounting hole and a quincunx hole; wherein the mounting hole is provided with a hole wall with a certain thickness, and the plum blossom hole is formed in the hole wall; the bottom plate is used for mounting the quincuncial sleeve base; wherein hexagonal bolt heads of the half hubs of the helicopter wheel are stopped by the plum blossom holes, and at the moment, a worker can loosen or tighten nuts from the other sides of the half hubs of the helicopter wheel by using a wrench, so that the two half hubs of the helicopter wheel are disassembled and assembled; the device can be flexibly applied according to different scenes of an assembly site, can be operated by male and female employees, solves the assembly problem, and improves the production efficiency.

Description

Technical Field

[0001] This application belongs to the field of helicopter wheel hub assembly technology, and particularly relates to a convenient disassembly and assembly device for helicopter wheel hubs. Background Technology

[0002] In the landing gear system of a certain aircraft model, the wheel is mainly composed of two half-hubs, a tire, a center sleeve, etc. The two half-hubs are cup-shaped, and ten bolt holes are orthogonally distributed on the concave surface of the half-hubs. Ten long bolts can be inserted to press the two half-hubs together.

[0003] The disassembly and installation of the wheel hub both require two operators to work together to proceed smoothly. The difficulty lies in installing the clamping bolts of the half-wheel hub. One operator needs to hold the bolt head against one end of the half-wheel hub to prevent the bolt from rotating in the hole. Only then can the other operator use a torque wrench to tighten the nut at the protruding part of the bolt on the opposite half-wheel hub to complete the torque assembly.

[0004] In reality, helicopter wheels have a large diameter and are heavy, making it impossible for one person to maintain stability. It requires two people to operate, which is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0005] The purpose of this application is to provide a dedicated half-hub disassembly and assembly device. Using this device, the disassembly and assembly of the half-hub of the machine wheel can be completed in a time-saving and labor-saving manner. The operation is simple and convenient, and can be used by both male and female employees. Moreover, only one person is needed to complete the operation.

[0006] This application provides a convenient disassembly and assembly device for helicopter wheel hubs, the device comprising:

[0007] A plum blossom sleeve base has mounting holes and plum blossom holes; wherein, the mounting holes have a hole wall of a certain thickness, and the plum blossom holes are arranged on the hole wall;

[0008] The base plate is used to install the plum blossom sleeve base;

[0009] The plum blossom hole stops the hexagonal bolt head of the half-hub of the helicopter wheel. At this time, the worker can use a wrench to loosen or tighten the nut from the other side of the half-hub of the helicopter wheel, thereby realizing the disassembly and assembly of the two half-hubs of the helicopter wheel.

[0010] Preferably, the base plate is a rectangular plate with round holes around its perimeter, and the base plate can be fixed to the clamping table by bolts and nuts.

[0011] Preferably, the plum blossom-shaped holes are orthogonally distributed on the hole walls.

[0012] Preferably, the device further includes:

[0013] A rubber protective sleeve has an opening corresponding to the plum blossom hole. The rubber protective sleeve is disposed on the mounting surface of the plum blossom sleeve base near the half-hub. The rubber protective sleeve is used to protect the half-hub.

[0014] Preferably, the device further includes:

[0015] A through hole is provided on the hole wall, and the through hole communicates with the plum blossom hole;

[0016] An internal threaded clamping bushing is disposed in the through hole, and the internal threaded clamping bushing is used to clamp the hexagonal bolt head of the half-hub.

[0017] Preferably, the depth of the plum blossom hole is less than the thickness of the hexagonal bolt head of the half-hub, and the plum blossom hole can penetrate the hole wall after communicating with the through hole.

[0018] The beneficial technical effects of this application are as follows:

[0019] This device is simple to operate, not limited by space, and has multiple uses. It can be flexibly applied according to different assembly site scenarios. Both male and female employees can operate it, solving assembly problems and improving production efficiency. Attached Figure Description

[0020] Figure 1a This is a perspective view of a convenient disassembly and assembly device for helicopter wheel hubs provided in an embodiment of this application;

[0021] Figure 1b This is a perspective view of a convenient disassembly and assembly device for a helicopter wheel hub provided in another embodiment of this application;

[0022] Figure 2 This is a cross-sectional view of a convenient disassembly and assembly device for helicopter wheel hubs provided in an embodiment of this application;

[0023] Figure 3 This is a diagram showing the usage state of a convenient disassembly and assembly device for helicopter wheel hubs provided in an embodiment of this application;

[0024] Among them, 1-plump-flower sleeve base; 2-base plate; 3-bolt; 4-nut; 5-internal threaded clamping bushing; 6-rubber protective sleeve; 7-half hub. Detailed Implementation

[0025] Please see Figure 1a and Figure 1b The device provided in this application consists of 6 parts: a plum blossom sleeve base 1; a base plate 2; a bolt 3; a nut 4; an internal threaded clamping bushing 5; and a rubber protective sleeve 6.

[0026] Please see Figure 2 and Figure 3: Gripper Usage: Installation Operation: First, place the bottom surface of the round hole in the base plate 2 of the device horizontally on the gripper. Then, align the round hole with the fixing hole of the gripper. Insert bolts 3 and nuts 4 into the round hole to fix the device and the gripper stably. Insert hexagonal bolts of the half-hub into the mounting holes and the hexagonal holes of the pendulum sleeve base 1. In the horizontal direction, the hexagonal bolts are restricted from rotating by the hexagonal holes. In the vertical direction, the bottom of the hexagonal holes supports the hexagonal bottom of the hexagonal bolts, preventing them from falling off. After installing the hexagonal bolts, install the half-hub onto the hexagonal bolts. The installation method is to connect the hexagonal bolt rod through the ten orthogonal holes on the half-hub. The axle of the half-hub passes through the through hole of the device. The through hole is used to avoid the axle and allow it to pass through. Then, install the other half-hub in the same way through the threaded rod extending from the upper end of the half-hub. This installation method ensures that the hexagonal bolts do not rotate in the holes and cannot move up or down. The worker then uses a wrench to install the nut on the hexagonal bolt by extending the bolt rod from the upper surface of the other half of the hub.

[0027] The disassembly operation is the same as the installation operation on the vise. The two assembled half-hulls and hex bolts are joined together, with the threaded shank of the hex bolt inserted into the mounting hole and the perforated hole of the perforated sleeve base 1 of the device. The worker then uses a wrench to remove the nut from the hex bolt at the part of the bolt shank protruding from the upper surface of the other half-hull. Note: This installation method does not require the use of the internal threaded clamping bushing 5.

[0028] The installation principle is to support the hexagonal plane of the hexagonal bolt at the bottom of the bottom plumb hole to prevent it from falling off, and then press two half-hulls into the hexagonal bolt. Under the action of the upper and lower clamping force, the hexagonal bolt is fixed and stopped.

[0029] Side-standing use: For installation, align the base plate 2 of the plum blossom sleeve base 1 perpendicular to the ground, with the side of base plate 2 flush against the ground. No bolts 3 or nuts 4 are needed. After assembling the half-hub and the hexagonal bolts for the half-hub to the device, the operator uses the internal thread of the bushing 5 to tighten the hexagonal bolts into one end of the device, ensuring they do not fall out. The worker then installs the other half-hub. This installation method prevents the bolts from turning inside the holes. The worker can then use a wrench to install the nuts on the hexagonal bolts. For disassembly, insert the two assembled half-hubs and hexagonal bolts, with the threaded shanks of the hexagonal bolts protruding, into the mounting holes and plum blossom holes of the plum blossom sleeve base 1. The worker then uses a wrench to remove the nuts on the hexagonal bolts from the upper surface of the other half-hub. Note: This installation method does not require bolts 3 or nuts 4.

Claims

1. A convenient disassembly and assembly device for helicopter wheel hubs, characterized in that, The device includes: A plum blossom sleeve base has mounting holes and plum blossom holes; wherein, the mounting holes have a hole wall of a certain thickness, and the plum blossom holes are arranged on the hole wall; The base plate is used to install the plum blossom sleeve base; The plum blossom hole stops the hexagonal bolt head of the half-hub of the helicopter wheel. At this time, the worker can use a wrench to loosen or tighten the nut from the other side of the half-hub of the helicopter wheel, thereby realizing the disassembly and assembly of the two half-hubs of the helicopter wheel.

2. The apparatus according to claim 1, characterized in that, The base plate is a rectangular plate with round holes around its perimeter. The base plate can be fixed to the clamping table by bolts and nuts.

3. The apparatus according to claim 2, characterized in that, The plum blossom-shaped holes are orthogonally distributed on the hole walls.

4. The apparatus according to claim 3, characterized in that, The device further includes: A rubber protective sleeve has an opening corresponding to the plum blossom hole. The rubber protective sleeve is disposed on the mounting surface of the plum blossom sleeve base near the half-hub. The rubber protective sleeve is used to protect the half-hub.

5. The apparatus according to claim 4, characterized in that, The device further includes: A through hole is provided on the hole wall, and the through hole communicates with the plum blossom hole; An internal threaded clamping bushing is disposed in the through hole, and the internal threaded clamping bushing is used to clamp the hexagonal bolt head of the half-hub.

6. The apparatus according to claim 5, characterized in that, The depth of the plum blossom hole is less than the thickness of the hexagonal bolt head of the half-hub, and the plum blossom hole can penetrate the hole wall after it is connected to the through hole.

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