CN210555561U

CN210555561U - Model machine main blade fixing device

Info

Publication number: CN210555561U
Application number: CN201920967156.5U
Authority: CN
Inventors: 吴谦; 张鹏; 徐饶灯; 盛志文; 凃娟
Original assignee: Jingdezhen Changhe Aviation Equipment Technology Co ltd
Current assignee: Jingdezhen Changhe Aviation Equipment Technology Co ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-05-19
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a model main blade fixing device, which comprises a main blade body, a clamping mechanism, an axial fixing mechanism and a top cover; the axial fixing mechanism comprises a fixing shaft and a fixing cylinder, the fixing shaft comprises a fixing rod section and a threaded rod section, and the fixing cylinder is sleeved and fixed on the threaded rod section; the clamping mechanism comprises a first bearing, a second bearing, a first profile frame, a second profile frame and a plurality of locking nuts, the top of the fixed cylinder is fixed to the first bearing sleeve, the bottom of the fixed cylinder is fixed to the second bearing sleeve, the bottom surface of the second profile frame is fixedly connected with the outer ring of the second bearing, the first profile frame and the second profile frame are of plate-shaped structures, the first profile frame and the second profile frame clamp and fix the main blade body, and the locking nuts are fixed above the first bearing. The utility model discloses a threaded rod section of fixed axle runs through type frame, bearing and main blade body to realize final fixed through lock nut, have the function of free rotation, installation, dismantlement and leak protection water.

Description

Model machine main blade fixing device

Technical Field

The utility model relates to a helicopter model technical field, more specifically relates to a model owner paddle fixing device.

Background

A 1:1 sized helicopter model is usually displayed visually at the production level of an aeronautical manufacturing company, and is usually displayed outdoors because the occupied space is small. The main blade fixing device of the traditional helicopter model has the following defects: 1. the main blade cannot rotate freely after being installed; 2. water leakage can not be effectively prevented during outdoor exhibition; 3. can not be freely disassembled and assembled. Therefore, effective solutions to solve the above problems are needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a main blade fixing device of a model machine, which is used for solving the problems that the main blade in the prior art can not rotate freely, the water leakage preventing capacity is poor and the installation can not be disassembled freely.

A model main blade fixing device comprises a main blade body, a clamping mechanism, an axial fixing mechanism and a top cover;

the axial fixing mechanism comprises a fixing shaft and a fixing barrel, the fixing shaft comprises a fixing rod section and a threaded rod section, one end of the fixing rod section is fixedly connected with the model machine body, the other end of the fixing rod section is fixedly connected with one end of the threaded rod section, the other end of the threaded rod section is in threaded fit with the bottom of the top cover, and the fixing barrel is sleeved and fixed on the threaded rod section;

the clamping mechanism comprises a first bearing, a second bearing, a first profile frame, a second profile frame and a plurality of locking nuts, the first bearing sleeve is fixed at the top of the fixed cylinder, the second bearing sleeve is fixed at the bottom of the fixed cylinder, the first profile frame is fixed on the fixed cylinder and positioned below the first bearing, the top surface of the first profile frame is fixedly connected with the outer ring of the first bearing, the second profile frame is fixed on the fixed cylinder and positioned above the second bearing, the bottom surface of the second profile frame is fixedly connected with the outer ring of the second bearing, the first profile frame and the second profile frame are both of a plate-shaped structure, the main blade body sleeve is fixed on the fixed cylinder and positioned between the first profile frame and the second profile frame, and the first profile frame and the second profile frame clamp the main blade body, the locking nut is fixed above the first bearing and is in threaded fit with the threaded rod section.

Optionally, main blade body includes a plurality of rotor blade, first template includes first fixed plate section and a plurality of first grip block section, first grip block section with second fixed plate section an organic whole is connected, second template includes second fixed plate section and second grip block section, the second fixed plate section with second grip block section an organic whole is connected, first grip block section with second grip block section respectively with rotor blade one-to-one, first grip block section second grip block section and all be equipped with the fixed orifices that a plurality of confession bolts passed through on the rotor blade.

Optionally, one end of the fixed rod section is fixed with a limiting convex edge, and the bottom end of the fixed cylinder is in contact fit with the limiting convex edge.

Optionally, a first limiting concave edge is arranged at the top of the side face of the fixed cylinder, the first bearing is fixed on the first limiting concave edge, and a first limiting area for the first bearing and the first fixture is formed between the first locking nut and the first limiting concave edge

And a second limiting concave edge is arranged at the bottom of the side surface of the fixed cylinder, the second bearing is fixed on the second limiting concave edge, and a second limiting area for the second bearing and the second fixture is formed between the limiting convex edge and the second limiting concave edge.

Optionally, the top cover is arc-shaped, a threaded pipe is fixed at the center of the inner concave surface of the top cover, and the threaded pipe and the threaded rod section are in threaded fit with the threaded pipe.

Optionally, the number of said lock nuts is 2.

The utility model has the advantages that:

one end of a fixed shaft is connected with a model machine body, the fixed shaft penetrates through a frame, a bearing and a main blade and is locked and fixed through a locking nut, so that the main blade and the fixing device can be quickly and conveniently mounted and dismounted; the profile frame is connected with the bearing in a welding mode, the profile frame can freely rotate along with the bearing, and the main blade body can also freely rotate along with the rotation of the profile frame; the top cover is arranged to effectively protect rainwater and the like from permeating into the fixed shaft and the bearing, and the rainwater and other external environments are prevented from corroding key parts of the fixing device and the model machine body.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of the overall structure of a main blade fixing device of a model machine provided by the present invention;

fig. 2 is a schematic structural view of the main blade fixing device of the model machine at another angle provided by the present invention;

fig. 3 is a schematic structural diagram of the axial fixing mechanism in the main blade fixing device of the model machine provided by the present invention.

In the figure:

101. fixing the rod section; 102. a threaded rod section; 103. a limiting convex edge; 104. a fixed cylinder; 105. a first limit concave edge; 106. a second limiting concave edge; 201. a first bearing; 202. a second bearing; 203. a first jig; 204. a second jig; 205. a lock nut; 206. a fixing hole; 301. a top cover; 302. a threaded pipe.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the present invention provides the following technical solutions:

a model main blade fixing device comprises a main blade body, a clamping mechanism, an axial fixing mechanism and a top cover 301; the axial fixing mechanism comprises a fixing shaft and a fixing barrel 104, the fixing shaft comprises a fixing rod section 101 and a threaded rod section 102, one end of the fixing rod section 101 is fixedly connected with the model machine body, the other end of the fixing rod section 101 is fixedly connected with one end of the threaded rod section 102, the other end of the threaded rod section 102 is in threaded fit with the bottom of the top cover 301, and the fixing barrel 104 is sleeved and fixed on the threaded rod section 102; the clamping mechanism comprises a first bearing 201, a second bearing 202, a first profile frame 203, a second profile frame 204 and a plurality of lock nuts 205, the first bearing 201 is sleeved and fixed on the top of the fixed cylinder 104, the second bearing 202 is sleeved and fixed on the bottom of the fixed cylinder 104, the first profile frame 203 is sleeved and fixed on the fixed cylinder 104 and is positioned below the first bearing 201, the top surface of the first profile frame 203 is fixedly connected with the outer ring of the first bearing 201, the second profile frame 204 is sleeved and fixed on the fixed cylinder 104 and is positioned above the second bearing 202, the bottom surface of the second profile frame 204 is fixedly connected with the outer ring of the second bearing 202, the first profile frame 203 and the second profile frame 204 are both of a plate-shaped structure, the main blade body is sleeved and fixed on the fixed cylinder 104 and is positioned between the first profile frame 203 and the second profile frame 204, the first profile frame 203 and the second profile frame 204 form clamping fixation to the main blade body, the lock nuts 205 are fixed above the first bearing 201, a lock nut 205 is threadedly engaged with the threaded shank segment 102.

In the above embodiment, specifically, the bottom end of the fixed rod section 101 of the fixed shaft is fixedly connected with the model machine body, the threaded rod section 102 of the fixed shaft penetrates through the first bearing 201, the second bearing 202, the first frame 203, the second frame 204 and the fixed cylinder 104 and is locked by the lock nut 205, and the other end of the threaded rod is also in threaded connection with the top cover 301, so that the fixing device can be freely and conveniently mounted and dismounted; the lock nut 205 is used for locking the fixed cylinder 104 and limiting the two bearings and the fixture, so that the bearings and the fixture cannot be loosened and separated; the first profile frame 203 and the second profile frame 204 clamp and fix the main blade body, and the profile frames and the bearings are welded and fixed, so that the first profile frame 203 and the second profile frame 204 can smoothly rotate along with the bearings, the main blade body can freely rotate along with the rotation of the first profile frame 203 and the second profile frame 204, and the reduction degree of a helicopter object by a model machine is improved; the top cover 301 and the threaded rod section 102 form threaded fit, can be freely mounted and dismounted, and can play a role in shielding rainwater, so that rainwater is prevented from permeating into a fixed shaft, a bearing and even key parts in a model machine, and the key parts are prevented from being corroded.

Further, the main blade body includes a plurality of rotor blades, the first fixture 203 includes a first fixing plate section and a plurality of first clamping plate sections, the first clamping plate section is integrally connected with a second fixing plate section, the second fixture 204 includes a second fixing plate section and a second clamping plate section, the second fixing plate section is integrally connected with the second clamping plate section, the first clamping plate section and the second clamping plate section respectively correspond to the rotor blades one by one, the first clamping plate section, the second clamping plate section and the rotor blades are all provided with a plurality of fixing holes 206 for bolts to pass through, the main blade body is a common main blade of the existing helicopter model for restoring the rotor of the real body, the fixing holes 206 provided on the rotor blades and the clamping plate sections are used for the bolts to pass through, and the final fixation is realized through the nut, so that the rotor blade can be rapidly installed and disassembled, and the exhibition and deployment of the model machine are facilitated.

Further, as shown in fig. 3, a limiting convex edge 103 is fixed at one end of the fixed rod section 101, the bottom end of the fixed cylinder 104 is in contact fit with the limiting convex edge 103, and the limiting convex edge 103 limits the bottom end of the fixed cylinder 104, so that the fixed cylinder 104 is more reasonable and reliable to fix; the top of the side of the fixed cylinder 104 is provided with a first limiting concave edge 105, the first bearing 201 is fixed on the first limiting concave edge 105, a first limiting area for the first bearing 201 and the first fixture 203 is formed between a locking nut 205 and the first limiting concave edge 105, the bottom of the side of the fixed cylinder 104 is provided with a second limiting concave edge 106, the second bearing 202 is fixed on the second limiting concave edge 106, a second limiting area for the second bearing 202 and the second fixture 204 is formed between a limiting convex edge 103 and the second limiting concave edge 106, the first limiting area and the second limiting area play a good limiting fixing role for the two fixtures and the bearings, so that the fixtures can not loosen axially while rotating freely, and the characteristics of a material object body are restored.

Further, top cap 301 is circular-arcly, top cap 301's interior concave surface center is fixed with screwed pipe 302, screw rod section 102 and screwed pipe 302 screw-thread fit, circular-arc appearance makes top cap 301 be difficult to produce ponding, the rainwater can fall along the arc convex surface, and can not cause the erosion to the model machine key position, the leak protection ability of model machine has been improved, and, also, the appearance characteristic of the reduction material object organism of further reduction, circular arc rotor top cap 301 can have good air flow nature in the material object organism.

Further, the number of the lock nuts 205 is 2, it is better that the number of the lock nuts 205 is set to 2, and the double nuts are one of the classic fastening schemes for preventing the loosening of the parts for screw fixation in mechanical design, specifically, the lock nut 205 close to the first bearing 201 is used for integrally locking and limiting the fixed cylinder 104, the lock nut 205 far away from the first bearing 201 is used for preventing the former lock nut 205 from loosening, and by utilizing the friction force between the two nuts and the friction force between the nuts and the threads, the latter problem of preventing the former nut from easily loosening is played.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a model machine owner paddle fixing device which characterized in that:

comprises a main blade body, a clamping mechanism, an axial fixing mechanism and a top cover (301);

the axial fixing mechanism comprises a fixing shaft and a fixing barrel (104), the fixing shaft comprises a fixing rod section (101) and a threaded rod section (102), one end of the fixing rod section (101) is fixedly connected with the model machine body, the other end of the fixing rod section (101) is fixedly connected with one end of the threaded rod section (102), the other end of the threaded rod section (102) is in threaded fit with the bottom of the top cover (301), and the fixing barrel (104) is sleeved and fixed on the threaded rod section (102);

the clamping mechanism comprises a first bearing (201), a second bearing (202), a first fixture (203), a second fixture (204) and a plurality of locking nuts (205), the first bearing (201) is sleeved and fixed at the top of the fixed cylinder (104), the second bearing (202) is sleeved and fixed at the bottom of the fixed cylinder (104), the first fixture (203) is sleeved and fixed on the fixed cylinder (104) and positioned below the first bearing (201), the top surface of the first fixture (203) is fixedly connected with the outer ring of the first bearing (201), the second fixture (204) is sleeved and fixed on the fixed cylinder (104) and positioned above the second bearing (202), the bottom surface of the second fixture (204) is fixedly connected with the outer ring of the second bearing (202), and the first fixture (203) and the second fixture (204) are both of plate-shaped structures, the main blade body cover is established and is fixed in on the solid fixed cylinder (104) and be located first type frame (203) with position between second type frame (204), first type frame (203) with second type frame (204) form the centre gripping to the main blade body and fix, lock nut (205) are fixed in first bearing (201) top, lock nut (205) with screw-thread pole section (102) screw-thread fit.

2. The model machine main blade fixing device according to claim 1, wherein:

the main blade body includes a plurality of rotor blades, first type frame (203) includes first fixed plate section and a plurality of first grip block section, second type frame (204) includes second fixed plate section and second grip block section, first grip block section with second fixed plate section an organic whole, the second fixed plate section with second grip block section an organic whole, first grip block section with second grip block section respectively with rotor blade one-to-one, first grip block section second grip block section and all be equipped with a plurality of fixed orificess (206) that supply the bolt to pass through on the rotor blade.

3. The model machine main blade fixing device according to claim 1, wherein:

one end of the fixed rod section (101) is fixed with a limiting convex edge (103), and the bottom end of the fixed cylinder (104) is in contact fit with the limiting convex edge (103).

4. The model machine main blade fixing device according to claim 3, wherein:

the side top of the fixed cylinder (104) is provided with a first limiting concave edge (105), the first bearing (201) is fixed on the first limiting concave edge (105), and a first limiting area between the first bearing (201) and the first limiting concave edge (105) is formed by aligning the first bearing (201) and the first die frame (203)

The bottom of the side face of the fixed cylinder (104) is provided with a second limiting concave edge (106), the second bearing (202) is fixed on the second limiting concave edge (106), and a second limiting area for the second bearing (202) and the second fixture (204) is formed between the limiting convex edge (103) and the second limiting concave edge (106).

5. The model machine main blade fixing device according to claim 1, wherein:

the top cover (301) is arc-shaped, a threaded pipe (302) is fixed at the center of the inner concave surface of the top cover (301), the threaded pipe (302), and the threaded rod section (102) is in threaded fit with the threaded pipe (302).

6. The model machine main blade fixing device according to claim 1, wherein:

the number of the lock nuts (205) is 2.