A rear tail wooden support platform

Abstract

The utility model discloses a rear tail wooden support platform, which specifically relates to the technical field of helicopter maintenance, including a bottom beam, the bottom of the bottom beam is equipped with universal brake casters near four corners, the bottom beam includes two parallel chassis main beams 1, the two ends of the two chassis main beams 1 are vertically connected with chassis main beams 2, and three connecting reinforcement beams are connected between the two chassis main beams 1 and located on the inner side of the two chassis main beams 2, and the top of each connecting reinforcement beam is fixedly connected with a sleeve pipe in the vertical direction. The rear tail wooden support platform designed by the utility model is used to lift the overall structure of the aircraft during aircraft maintenance or assembly, has a large force, can withstand several tons to dozens of tons for a single unit, and can adjust the height infinitely. When adjusting the height, the wooden support does not rotate or shift, and can be lifted and lowered smoothly. The wooden support surface fits perfectly with the designated lifting position of the aircraft, and the surface is transitionally isolated with a flexible material to avoid damaging the aircraft.

Description

Technical Field

[0001] The utility model relates to the technical field of helicopter maintenance, and more specifically to a rear tail wooden support platform. Background Art

[0002] With the continuous advancement of aviation technology, helicopters are increasingly used in various fields, from military reconnaissance, civil rescue to cargo transportation, etc., the versatility of helicopters has been fully demonstrated. However, while pursuing performance, traditional helicopter design also faces challenges in terms of fuselage weight, energy consumption, and operating costs. Therefore, lightweight design has become one of the important directions for the development of helicopter technology. During the maintenance and overhaul of helicopters, the rear tail is an important inspection area because it contains the tail rotor, transmission system and other key components. In order to facilitate technicians to carry out these tasks, the rear tail wooden support platform is usually used as the overhaul platform.

[0003] The existing rear tail wooden support platform usually uses a mobile platform to support the rear tail, and the supporting part uses a hydraulic or electrically controlled lifting bracket. In actual use, the hydraulic or electrically controlled lifting bracket has a straight up and down structure. When the placement surface of the platform is uneven, the contact position between the bracket and the rear tail of the helicopter is insufficient, and the supporting effect is not ideal. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a rear tail wooden support platform.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rear tail wooden support platform, including a bottom beam, the bottom of the bottom beam is equipped with universal brake casters near the four corners, the bottom beam includes two parallel bottom frame main beams, the two bottom frame main beams are vertically connected with the bottom frame main beam two between the two ends of the two bottom frame main beams, and three connecting reinforcement beams are connected between the two bottom frame main beams and located on the inner sides of the two bottom frame main beams two, the top of each connecting reinforcement beam is fixedly connected with a sleeve pipe in the vertical direction, the tops of the three sleeve pipes are connected with a connecting pipe, and the outer walls of the two ends of the two bottom frame main beams are connected. A supporting and adjusting mechanism is installed in each of them, the tops of the three sleeve tubes are connected with a lifting handwheel, and the insides of the two outer sleeve tubes are connected with a lifting screw rod in the vertical direction, the outside of the lifting screw rod is located at the bottom of the lifting handwheel and is connected with a lifting nut, the bottom of the lifting handwheel is located above the lifting nut and is provided with a bearing cover, the top of the lifting screw rod is connected with a lifting male and female head, the outside of the lifting male and female heads is connected with a perforated lug, the top of the perforated lug is fixedly connected with a wooden bracket steel, the inner side of the top of the wooden bracket steel is provided with a wooden bracket for bonding with the machine tail, and the top of the wooden bracket for bonding with the machine tail is provided with a cotton pad.

[0006] As a further improvement of the technical solution of the utility model, the support adjustment mechanism includes a ground support threaded sleeve fixedly connected to an outer wall of a main beam of the base frame, the interior of the ground support threaded sleeve is connected to a ground support screw rod in the vertical direction, the bottom of the ground support screw rod is connected to a ground support universal chassis, and the top of the ground support screw rod is fixedly connected to a handwheel ground support handwheel.

[0007] As a further improvement of the technical solution of the utility model, the ground support threaded sleeve is welded and fixed to the outer wall of the main beam of the base frame, and the interior of the ground support threaded sleeve is provided with an internal threaded hole matching the external thread structure of the ground support screw rod in the vertical direction, a flange is welded to the bottom end of the ground support threaded sleeve, and the top of the ground support universal chassis is connected to the flange by bolts.

[0008] As a further improvement of the technical solution of the utility model, the outer wall of the sleeve tube is connected to a plurality of diagonal brace tubes, the bottoms of the plurality of diagonal brace tubes are welded and fixed to the second main beam of the chassis and the top of the connecting reinforcement beam, and the sleeve tube and the diagonal brace tubes are both steel tube structures.

[0009] As a further improvement of the technical solution of the utility model, the exterior of the wooden support channel steel, the tail-fitting wooden support and the cotton pad are wrapped with canvas.

[0010] As a further improvement of the technical solution of the utility model, the top of the perforated support ear is fixedly connected to the bottom of the wooden bracket steel by screws, and the lifting screw rod and the perforated support ear are movably connected by a rotating shaft.

[0011] As a further improvement of the technical solution of the utility model, the outer wall of the wooden bracket channel steel is equidistantly connected with a plurality of screws for fixing the tail of the machine to fit the wooden bracket.

[0012] Beneficial effects of the utility model:

[0013] 1. After the platform position is determined and fixed, the tail-fitting wooden support is used to support the rear tail of the lightweight helicopter, and the lifting hand wheel is controlled to rotate outside the lifting screw rod, and the position of the lifting hand wheel relative to the bearing cover does not change, thereby controlling the lifting screw rod to maintain the lifting in the vertical direction, that is, the lifting and lowering of the end of the tail-fitting wooden support can be adjusted, and the tail-fitting wooden support can be adjusted conveniently, so that the top of the tail-fitting wooden support can better play a supporting effect, and the top of the tail-fitting wooden support is also provided with an arc groove for placing the rear tail of the lightweight helicopter, and the upper surface of the tail-fitting wooden support is bonded with a cotton pad, which is convenient for the installation and fixation of the tail-fitting wooden support, and is convenient for protecting the position of the contact support;

[0014] 2. By setting a support adjustment mechanism, when the support adjustment mechanism is in use, the ground support screw rod is driven to rotate by rotating the ground support hand wheel, and the ground support screw rod is threadedly connected with the ground support thread sleeve when rotating. Since the ground support thread sleeve is a fixed structure, the ground support screw rod can drive the bottom ground support universal chassis to move in the vertical direction when rotating, so that it is convenient to rotate the connection position of the ground support screw rod on the ground support thread sleeve as needed during use, and then adjust the ground support universal chassis to be in close contact with the placement surface to improve the stability of the platform when placed as a whole, and can also adjust the support to achieve the effect of leveling when the ground is not level. At the same time, when the ground support universal chassis is controlled to be separated from the placement surface, it is convenient for the platform to move;

[0015] In summary, the rear tail wooden support platform designed by the utility model is used to lift the overall structure of the aircraft during aircraft maintenance or assembly. It has the function of bearing large force, a single unit can withstand several tons to dozens of tons, and can adjust the height infinitely. When the height is adjusted, the wooden support does not rotate or shift, and it rises and falls smoothly. The wooden support surface fits perfectly with the designated lifting position of the aircraft, and the surface is transitionally isolated with flexible materials to avoid damage to the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the connection of the jacking screw rod in the utility model.

[0018] Figure 3 It is a side view of the connection between the tail-fitting wooden support and the support ear with holes in the utility model.

[0019] Figure 4 It is a top view of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the installation location of the lifting hand wheel in the utility model.

[0021] Figure 6 It is a side view of the utility model.

[0022] The accompanying drawings are marked as follows: 1. chassis main beam one; 2. chassis main beam two; 3. connecting reinforcement beam; 4. connecting pipe; 5. sleeve pipe; 6. diagonal support pipe; 7. lifting screw rod; 8. lifting hand wheel; 9. support ear with hole; 10. wooden support channel steel; 11. ground support threaded sleeve; 12. ground support screw rod; 13. ground support universal chassis; 14. ground support hand wheel; 15. universal brake caster; 16. lifting nut; 17. lifting male and female heads; 18. tail fitting wooden support; 19. cotton pad; 20. canvas; 21. bearing cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As attached Figure 1-6 The tail wooden support platform shown in the figure includes a bottom beam, and universal brake casters 15 are installed at the bottom of the bottom beam near the four corners. The bottom beam includes two parallel bottom frame main beams 1, and bottom frame main beams 2 are vertically connected between the two ends of the two bottom frame main beams 1, and three connecting reinforcement beams 3 are connected between the two bottom frame main beams 1 and located on the inner side of the two bottom frame main beams 2. The top of each connecting reinforcement beam 3 is fixedly connected to a sleeve pipe 5 in the vertical direction, and the tops of the three sleeve pipes 5 are connected with a connecting pipe 4. The outer walls of the two ends of the two bottom frame main beams 1 are installed with support adjustment mechanisms. A lifting handwheel 8 is connected to the top of the sleeve tube 5, and the insides of the two outer sleeve tubes 5 are connected to the lifting screw rod 7 in the vertical direction, the outside of the lifting screw rod 7 is located at the bottom of the lifting handwheel 8 and is connected to the lifting nut 16, the bottom of the lifting handwheel 8 is located above the lifting nut 16 and is provided with a bearing cover 21, the top of the lifting screw rod 7 is connected to the lifting male and female heads 17, the outside of the lifting male and female heads 17 is connected to the holed lug 9, the top of the holed lug 9 is fixedly connected to the wooden bracket steel 10, the top inner side of the wooden bracket steel 10 is provided with a machine tail-bonded wooden bracket 18, and the top of the machine tail-bonded wooden bracket 18 is provided with a cotton pad 19.

[0025] The support adjustment mechanism includes a ground support threaded sleeve 11 fixedly connected to the outer wall of the base frame main beam 1, the inside of the ground support threaded sleeve 11 is connected to a ground support screw rod 12 in the vertical direction, the bottom of the ground support screw rod 12 is connected to a ground support universal chassis 13, and the top of the ground support screw rod 12 is fixedly connected to a hand wheel ground support hand wheel 14, the ground support threaded sleeve 11 is welded and fixed to the outer wall of the base frame main beam 1, and the inside of the ground support threaded sleeve 11 is provided with an internal threaded hole matching the external thread structure of the ground support screw rod 12 in the vertical direction, and the ground support A flange is welded to the bottom end of the threaded sleeve 11, and the top of the ground support universal chassis 13 is connected to the flange by bolts. The support adjustment mechanism is arranged so that when in use, the connection position of the ground support screw rod 12 on the ground support threaded sleeve 11 can be rotated as needed, and then the stability of the platform as a whole can be improved by the close contact between the ground support universal chassis 13 and the placement surface, and the support can be adjusted to achieve the effect of leveling when the ground is not level. At the same time, when the ground support universal chassis 13 is controlled to be separated from the placement surface, the movement of the platform is facilitated.

[0026] Among them, the outer wall of the sleeve tube 5 is connected to multiple diagonal brace tubes 6, the bottoms of the multiple diagonal brace tubes 6 are welded and fixed to the top of the chassis main beam 2 and the connecting reinforcement beam 3, and the sleeve tube 5 and the diagonal brace tubes 6 are both steel pipe structures, which makes the support of the platform more stable.

[0027] The exterior of the wooden support channel steel 10 , the tail-fitting wooden support 18 and the cotton pad 19 are wrapped with canvas 20 .

[0028] The top of the perforated support ear 9 is fixedly connected to the bottom of the wooden support channel steel 10 by screws, and the lifting screw rod 7 is movably connected to the perforated support ear 9 by a rotating shaft.

[0029] Among them, the outer wall of the wooden bracket channel steel 10 is equidistantly connected with a plurality of screws for fixing the tail of the machine to fit the wooden bracket 18 , so that the tail of the machine can fit the wooden bracket 18 inside the wooden bracket channel steel 10 .

[0030] Working principle: This utility model designs a rear tail wooden support platform, the specific structure is as shown in the attached manual Figure 1-4 As shown, in the present technical solution, firstly, a support adjustment mechanism is provided on the outer wall of the two chassis main beams 1. When the support adjustment mechanism is in use, the ground support screw rod 12 is driven to rotate by rotating the ground support hand wheel 14. When the ground support screw rod 12 rotates, it is threadedly connected with the ground support threaded sleeve 11. Since the ground support threaded sleeve 11 is a fixed structure, the ground support screw rod 12 can drive the bottom ground support universal chassis 13 to move in the vertical direction when rotating. Therefore, when in use, it is convenient to rotate the connection position of the ground support screw rod 12 on the ground support threaded sleeve 11 as needed, and then by adjusting the ground support universal chassis 13 to be in close contact with the placement surface, the stability of the platform when placed as a whole can be improved. It can also adjust the support to achieve the effect of leveling when the ground is not level. At the same time, when the ground support universal chassis 13 is controlled to be out of the placement When the surface is formed, it is convenient to move the platform; after the platform position is determined and fixed, the tail-fitting wooden support 18 is used to support the rear tail part of the lightweight helicopter, and the lifting hand wheel 8 is controlled to rotate outside the lifting screw rod 7, and the position of the lifting hand wheel 8 relative to the bearing cover 21 does not change, thereby controlling the lifting screw rod 7 to maintain the lifting in the vertical direction, that is, the lifting and lowering of the end of the tail-fitting wooden support 18 can be adjusted, which is convenient for adjusting the tail-fitting wooden support 18, so that the top of the tail-fitting wooden support 18 can better play a supporting effect, and the top of the tail-fitting wooden support 18 is also provided with an arc groove for placing the rear tail of the lightweight helicopter, and a cotton pad 19 is bonded to the upper surface of the tail-fitting wooden support 18, which is convenient for the installation and fixation of the tail-fitting wooden support 18, and is convenient for protecting the position of the contact support.

[0031] Among them, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A rear tail wooden support platform, comprising a bottom beam, wherein the bottom of the bottom beam is provided with universal brake casters (15) near the four corners, and characterized in that: The bottom beam comprises two parallel bottom frame main beams (1), the two ends of the two bottom frame main beams (1) are vertically connected to the bottom frame main beams (2), and three connecting reinforcement beams (3) are connected between the two bottom frame main beams (1) and located on the inner sides of the two bottom frame main beams (2), the top of each connecting reinforcement beam (3) is fixedly connected to a sleeve tube (5) in the vertical direction, the tops of the three sleeve tubes (5) are connected to a connecting tube (4), the outer walls of the two ends of the two bottom frame main beams (1) are installed with support adjustment mechanisms, the tops of the three sleeve tubes (5) are connected to lifting hand wheels (8), and the inner sides of the two outer sleeve tubes (5) are fixedly connected to the top of the sleeve tubes (5). A lifting screw rod (7) is connected in the vertical direction, the outside of the lifting screw rod (7) is located at the bottom of the lifting hand wheel (8) and is connected to a lifting nut (16), the bottom of the lifting hand wheel (8) is located above the lifting nut (16) and is provided with a bearing cover (21), the top of the lifting screw rod (7) is connected to a lifting male and female head (17), the outside of the lifting male and female head (17) is connected to a perforated lug (9), the top of the perforated lug (9) is fixedly connected to a wooden support channel steel (10), the inner side of the top of the wooden support channel steel (10) is provided with an organic tail-bonded wooden support (18), and the top of the organic tail-bonded wooden support (18) is provided with a cotton pad (19).

2. The rear tail wooden support platform according to claim 1, characterized in that: The support adjustment mechanism comprises a ground support threaded sleeve (11) fixedly connected to the outer wall of the base frame main beam (1), the interior of the ground support threaded sleeve (11) is connected to a ground support screw rod (12) in the vertical direction, the bottom of the ground support screw rod (12) is connected to a ground support universal chassis (13), and the top of the ground support screw rod (12) is fixedly connected to a hand wheel ground support hand wheel (14).

3. The rear tail wooden support platform according to claim 2, characterized in that: The ground support threaded sleeve (11) is welded and fixed to the outer wall of the chassis main beam (1), and an internal threaded hole matching the external threaded structure of the ground support screw rod (12) is arranged inside the ground support threaded sleeve (11) in the vertical direction. A flange is welded to the bottom end of the ground support threaded sleeve (11), and the top of the ground support universal chassis (13) is connected to the flange by bolts.

4. The rear tail wooden support platform according to claim 1, characterized in that: The outer wall of the sleeve tube (5) is connected to a plurality of diagonal bracing tubes (6), the bottoms of the plurality of diagonal bracing tubes (6) are welded and fixed to the second main beam (2) of the chassis and the top ends of the connection reinforcement beam (3), and the sleeve tube (5) and the diagonal bracing tubes (6) are both steel tube structures.

5. The rear tail wooden support platform according to claim 1, characterized in that: The exterior of the wooden support channel steel (10), the tail-end fitting wooden support (18) and the cotton pad (19) is wrapped with canvas (20).

6. The rear tail wooden support platform according to claim 1, characterized in that: The top of the perforated support ear (9) is fixedly connected to the bottom of the wooden support channel steel (10) by means of screws, and the lifting screw rod (7) is movably connected to the perforated support ear (9) by means of a rotating shaft.

7. The rear tail wooden support platform according to claim 1, characterized in that: The outer wall of the wooden support channel steel (10) is equidistantly connected with a plurality of screws for fixing the tail-end fitting wooden support (18).

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