Helicopter spindle horizontal placement support

Abstract

The utility model discloses a helicopter main shaft horizontal placement support which comprises a base support, a positioning sliding groove is formed in one side of the base support, a sliding block is connected in the positioning sliding groove in a sliding mode, a sliding frame is fixedly connected to one side of the sliding block, a mounting frame is fixedly connected to the top of the sliding frame, a mounting groove is formed in the mounting frame, and a rotating frame is rotationally connected in the mounting groove. The helicopter main shaft is placed and fixed through mutual cooperation of the stabilizing wheel and the limiting wheel, and the helicopter main shaft can rotate between the stabilizing wheel and the limiting wheel, so that workers can observe and work conveniently. And the pull block is pulled to enable the locking hook claw to be separated from the gear, so that the distance between the stabilizing wheel and the limiting wheel can be conveniently adjusted, the device is suitable for helicopter spindles with different diameters, and the helicopter spindles can be conveniently repaired and maintained. And the screw rod is driven to rotate by rotating the adjusting plate, so that the distance between the mounting frames is adjusted, different positions of the helicopter main shaft are conveniently supported, and the device is suitable for helicopter main shafts with different lengths.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation maintenance, in particular to a horizontal placement bracket for a helicopter main shaft. Background Art

[0002] As one of the most distinctive creations of aviation technology in the 20th century, helicopters have greatly expanded the scope of application of aircraft. Helicopters are typical dual-use products for both military and civilian use, and can be widely used in transportation, patrol, tourism, rescue and other fields. The outstanding features of helicopters are that they can perform low-altitude (several meters above the ground), low-speed (starting from hovering) and maneuvering flight with the nose direction unchanged, especially vertical take-off and landing in a small area. Due to these characteristics, they have broad uses and development prospects. In the military, they have been widely used in ground attack, airborne landing, weapon delivery, logistics support, battlefield rescue, reconnaissance patrol, command and control, communication, anti-submarine minesweeping, electronic countermeasures, etc. In the civilian field, they are used for short-distance transportation, medical rescue, disaster relief and life-saving, emergency rescue, hoisting equipment, geological exploration, forest fire protection, aerial photography, etc. The transportation of personnel and materials between offshore oil wells and bases is an important aspect of civilian use.

[0003] During the five-year inspection of the BELL407 (GXP / GXI) helicopter, the main shaft components need to be inspected in detail to see if the spline teeth are worn, if the inner diameter is corroded, and if the paint on the main shaft surface is damaged. Considering that the main shaft components are heavy and are not prone to secondary damage during the maintenance process due to collisions, we need to design a bracket that can place the main shaft components horizontally, rotate horizontally, and fix them securely, so that maintenance personnel can approach the components and perform detailed visual inspections and other maintenance work at a closer distance. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provides a bracket for horizontally placing a main shaft of a helicopter.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A support for horizontally placing a main shaft of a helicopter comprises: a base support, a positioning slot is provided on one side of the base support, a slider is slidably connected in the positioning slot, a sliding frame is fixedly connected to one side of the sliding frame, a mounting frame is fixedly connected to the top of the sliding frame, a mounting slot is provided on the mounting frame, a rotating frame is rotatably connected in the mounting slot, a fixing frame is fixedly connected to the mounting frame, a stabilizing wheel is rotatably connected in the fixing frame, a limiting wheel is rotatably connected in the rotating frame, the stabilizing wheel and the limiting wheel are used for placing the main shaft of the helicopter, and a diameter adjustment component for adjusting the angle between the fixing frame and the rotating frame is provided on the mounting frame;

[0007] The diameter adjustment assembly includes a gear, one side of the rotating frame is fixedly connected to the gear, one side of the mounting frame is rotatably connected to a locking hook, one side of the mounting frame is fixedly connected to a fixing block, and a spring is fixedly connected between the fixing block and the locking hook.

[0008] As a preferred technical solution, the locking hook is provided with a latching tooth matching the gear, one side of the locking hook is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to a pulling block.

[0009] As a preferred technical solution, the gear is rotatably connected to one side of the mounting frame, and the spring and the gear do not contact each other.

[0010] As a preferred technical solution, a length adjustment component is provided on the base bracket, and the length adjustment component includes an adjustment plate. The adjustment plates are symmetrically provided on both sides of the base bracket, and a screw rod is fixedly connected to one side of the adjustment plate.

[0011] As a preferred technical solution, the screw rod is threadedly connected to the sliding frame, and an anti-slip sleeve is provided on the surface of the adjustment plate.

[0012] As a preferred technical solution, a support plate is fixedly connected to the sliding frame, the support plate is fixedly connected to the mounting frame, and the support plate is arranged in a triangular shape.

[0013] As a preferred technical solution, the stabilizing wheel and the limiting wheel are configured as rubber wheels, and the bottom of the base bracket is symmetrically provided with feet and universal wheels.

[0014] The beneficial effects of the utility model are as follows: the utility model places and fixes the helicopter main shaft by the cooperation between the stabilizing wheel and the limiting wheel, and the helicopter main shaft can rotate between the stabilizing wheel and the limiting wheel, which is convenient for the staff to observe the operation. Pulling the pull block disengages the locking hook from the gear, which is convenient for adjusting the spacing between the stabilizing wheel and the limiting wheel, so as to be suitable for helicopter main shafts of different diameters and convenient for repairing and maintaining the helicopter main shaft. By rotating the adjustment plate to drive the screw rod to rotate, and then adjusting the spacing of the mounting frame, it is convenient to support different positions of the helicopter main shaft and is suitable for helicopter main shafts of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a horizontally placed bracket for a helicopter main shaft according to the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of a mounting frame for a horizontally placed bracket of a helicopter main shaft according to the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of a base bracket of a horizontally placed bracket for a helicopter main shaft according to the utility model;

[0018] Figure 4 This is an enlarged view of structure A of a horizontally placed bracket for a helicopter main shaft according to the utility model;

[0019] In the figure: 1. base bracket; 2. positioning slide groove; 3. slider; 4. sliding frame; 5. mounting frame; 6. support plate; 7. fixed frame; 8. stabilizing wheel; 9. rotating frame; 10. limiting wheel; 11. diameter adjustment assembly; 1101. gear; 1102. locking hook; 1103. connecting rod; 1104. pull block; 1105. fixed block; 1106. spring; 12. length adjustment assembly; 1201. adjustment plate; 1202. screw rod; 13. mounting groove.

[0020] The drawings in this utility model are all schematic diagrams, and their sizes do not represent actual sizes;

[0021] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] like Figure 1 to Figure 4 As shown, a bracket for horizontally placing a main shaft of a helicopter comprises: a base bracket 1, a positioning slide groove 2 is provided on one side of the base bracket 1, a slider 3 is slidably connected in the positioning slide groove 2, a sliding frame 4 is fixedly connected to one side of the sliding frame 3, a mounting frame 5 is fixedly connected to the top of the sliding frame 4, a mounting groove 13 is provided on the mounting frame 5, a rotating frame 9 is rotatably connected in the mounting groove 13, a fixing frame 7 is fixedly connected to the mounting frame 5, a stabilizing wheel 8 is rotatably connected in the fixing frame 7, a limiting wheel 10 is rotatably connected in the rotating frame 9, the stabilizing wheel 8 and the limiting wheel 10 are used for placing the main shaft of the helicopter, and a diameter adjustment component 11 for adjusting the angle between the fixing frame 7 and the rotating frame 9 is provided on the mounting frame 5;

[0024] The diameter adjustment assembly 11 includes a gear 1101, a gear 1101 is fixedly connected to one side of the rotating frame 9, a locking hook 1102 is rotatably connected to one side of the mounting frame 5, a fixing block 1105 is fixedly connected to one side of the mounting frame 5, and a spring 1106 is fixedly connected between the fixing block 1105 and the locking hook 1102. The locking hook 1102 is pulled toward the gear 1101 by the spring 1106, so that the locking hook 1102 locks the gear 1101 to prevent the gear 1101 from rotating.

[0025] The locking hook 1102 is provided with a latching tooth matching the gear 1101, one side of the locking hook 1102 is fixedly connected to a connecting rod 1103, and one end of the connecting rod 1103 is fixedly connected to a pull block 1104. By pulling the pull block 1104, the connecting rod 1103 and the locking hook 1102 are driven to move, so that the locking hook 1102 is unlocked from the gear 1101, which is convenient for adjusting the opening size of the rotating frame 9 and the fixed frame 7.

[0026] Among them, the gear 1101 is rotatably connected to one side of the mounting frame 5, and the spring 1106 does not contact the gear 1101. The gear 1101 and the locking hook 1102 cooperate with each other to lock the gear 1101 to prevent the rotating frame 9 from rotating.

[0027] The base bracket 1 is provided with a length adjustment component 12, which includes an adjustment plate 1201. The adjustment plates 1201 are symmetrically arranged on both sides of the base bracket 1, and a screw rod 1202 is fixedly connected to one side of the adjustment plate 1201. The screw rod 1202 is driven to rotate by rotating the adjustment plate 1201, thereby adjusting the spacing of the mounting frame 5, so as to support different positions of the helicopter main shaft.

[0028] The screw rod 1202 is threadedly connected to the sliding frame 4, and an anti-skid sleeve is provided on the surface of the adjustment plate 1201. The anti-skid sleeve is provided to facilitate the rotation of the adjustment plate 1201, and the spacing of the mounting frame 5 can be adjusted more conveniently.

[0029] Among them, the sliding frame 4 is fixedly connected with a support plate 6, and the support plate 6 is fixedly connected to the mounting frame 5, and the support plate 6 is arranged in a triangular shape. The support plate 6 can ensure the stability of the mounting frame 5 and increase the stability of the structure.

[0030] Among them, the stabilizing wheel 8 and the limiting wheel 10 are set as rubber wheels, and the bottom of the base bracket 1 is symmetrically provided with feet and universal wheels. The rubber wheels are set to avoid damage to the helicopter main shaft, and the feet and universal wheels are set to facilitate the movement and support of the base bracket 1, and it is more convenient to maintain and maintain the main shaft.

[0031] The working principle of the utility model is: pull the pull block 1104 to drive the connecting rod 1103 and the locking hook 1102 to move, so that the locking hook 1102 is unlocked from the gear 1101, and the rotating frame 9 is rotated to adjust the angle of the rotating frame 9 and the fixed frame 7, and then the spacing between the stabilizing wheel 8 and the limiting wheel 10 is adjusted, so as to facilitate the placement and fixation of helicopter main shafts of different diameters. The main shaft is placed between the stabilizing wheel 8 and the limiting wheel 10, and the main shaft can be repaired and maintained by rotating the main shaft, which is convenient for use. The rotating adjustment plate 1201 drives the screw rod 1202 to rotate, and the rotation of the screw rod 1202 drives the sliding frame 4 to move the positioning slide 2, and the movement of the sliding frame 4 changes the spacing of the mounting frame 5, which is convenient for fixing and repairing main shafts of different lengths, which is convenient for use.

[0032] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A helicopter main shaft horizontal placement bracket, characterized in that: include: A base bracket (1), wherein a positioning slot (2) is provided on one side of the base bracket (1), a slider (3) is slidably connected in the positioning slot (2), a sliding frame (4) is fixedly connected to one side of the sliding frame (3), a mounting frame (5) is fixedly connected to the top of the sliding frame (4), a mounting slot (13) is provided on the mounting frame (5), a rotating frame (9) is rotatably connected in the mounting slot (13), a fixed frame (7) is fixedly connected to the mounting frame (5), a stabilizing wheel (8) is rotatably connected in the fixed frame (7), a limiting wheel (10) is rotatably connected in the rotating frame (9), the stabilizing wheel (8) and the limiting wheel (10) are used to place a main shaft of a helicopter, and a diameter adjustment component (11) for adjusting the angle between the fixed frame (7) and the rotating frame (9) is provided on the mounting frame (5); The diameter adjustment assembly (11) comprises a gear (1101), one side of the rotating frame (9) is fixedly connected to the gear (1101), one side of the mounting frame (5) is rotatably connected to a locking hook (1102), one side of the mounting frame (5) is fixedly connected to a fixing block (1105), and a spring (1106) is fixedly connected between the fixing block (1105) and the locking hook (1102).

2. A helicopter main shaft horizontal placement bracket according to claim 1, characterized in that: The locking hook (1102) is provided with a latching tooth matching the gear (1101), one side of the locking hook (1102) is fixedly connected to a connecting rod (1103), and one end of the connecting rod (1103) is fixedly connected to a pulling block (1104).

3. A helicopter main shaft horizontal placement bracket according to claim 2, characterized in that: The gear (1101) is rotatably connected to one side of the mounting frame (5), and the spring (1106) and the gear (1101) do not contact each other.

4. The helicopter main shaft horizontal placement bracket according to claim 1, characterized in that: The base support (1) is provided with a length adjustment component (12), the length adjustment component (12) comprising an adjustment plate (1201), the adjustment plates (1201) are symmetrically arranged on both sides of the base support (1), and one side of the adjustment plate (1201) is fixedly connected to a screw rod (1202).

5. A helicopter main shaft horizontal placement bracket according to claim 4, characterized in that: The screw rod (1202) is threadedly connected to the sliding frame (4), and an anti-slip sleeve is provided on the surface of the adjustment plate (1201).

6. A helicopter main shaft horizontal placement bracket according to claim 5, characterized in that: A support plate (6) is fixedly connected to the sliding frame (4), the support plate (6) is fixedly connected to the mounting frame (5), and the support plate (6) is arranged in a triangular shape.

7. A helicopter main shaft horizontal placement bracket according to any one of claims 1 to 6, characterized in that: The stabilizing wheel (8) and the limiting wheel (10) are configured as rubber wheels, and the bottom of the base bracket (1) is symmetrically provided with feet and universal wheels.

Images