CN211969712U

CN211969712U - Quick detach formula screw structure

Info

Publication number: CN211969712U
Application number: CN202020234172.6U
Authority: CN
Inventors: 张建平
Original assignee: Chen Xuling
Current assignee: Wuhan Juncheng Electromechanical Instrument Manufacturing Co ltd
Priority date: 2020-02-29
Filing date: 2020-02-29
Publication date: 2020-11-20
Anticipated expiration: 2030-02-28

Abstract

The utility model relates to a propeller structure technical field just discloses a quick detach formula propeller structure. This quick detach formula screw structure, including propeller hub, paddle, installation axle, installation device, fixed mounting has the paddle on the circumference of propeller hub, the axle center department of propeller hub has the installation axle through installation device fixed mounting. Through the pull rod among the installation device, limiting sleeve, a piston cylinder, first buffer spring, the stopper, the activity round pin axle, first movable rod, the second movable rod, first slider, first guide rail, first movable rod, the direction spout, the kelly, the draw-in groove, the second trace, cooperation setting between second slider and the second guide rail, when dismantling, the pulling pull rod, make first movable rod and second movable rod rebound, thereby make first slider remove to the middle part on first guide rail, thereby first movable rod pulling kelly breaks away from the draw-in groove, thereby realize quick effect of dismantling installation axle and propeller hub in order to reach quick dismantlement.

Description

Quick detach formula screw structure

Technical Field

The utility model relates to a propeller structure technical field specifically is a quick detach formula propeller structure.

Background

The propeller is a device which rotates in the air or water by means of blades and converts the rotating power of an engine into propulsive force, and can be a propeller with two or more blades connected with a hub, wherein the backward surface of each blade is a spiral surface or a surface similar to the spiral surface. The propellers are divided into a plurality of types and are widely applied, such as propellers of aircrafts and ships.

When the existing propeller is maintained and disassembled, the propeller is often difficult to disassemble and assemble by adopting a conventional knocking method due to over-tightness of matching of the propeller and an installation shaft, and then the propeller shaft is difficult to separate and has certain damage risk no matter a dry ice freezing installation method or a method of baking a propeller hub is adopted on site.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a quick detach formula screw structure possesses advantages such as convenient to detach and installation, has solved because screw and installation axle complex are too tight, leads to adopting the conventional problem that strikes the method and be difficult to the dismouting.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a quick detach formula screw structure, includes propeller hub, paddle, installation axle, installation device, fixed mounting has the paddle on the circumference of propeller hub, the axle center department of propeller hub has the installation axle through installation device fixed mounting.

The mounting device comprises a pull rod, the pull rod is movably mounted in the middle of the top end of a mounting shaft, a limiting sleeve is sleeved on the circumference of the top of the pull rod, a piston cylinder is fixedly mounted at the top end of the interior of the mounting shaft, a first buffer spring is movably mounted in the interior of the piston cylinder, limiting blocks are movably connected to two ends of the bottom of the first buffer spring, a movable pin shaft is movably mounted on the circumference of the bottom end of the pull rod, a first movable rod is movably connected to the left side of the bottom of the movable pin shaft, a second movable rod is movably connected to the right side of the bottom of the movable pin shaft, a first sliding block is movably connected to the bottom of the first movable rod, a first guide rail penetrates through the interior of the first sliding block and is movably connected to the interior of the first sliding block, a first connecting rod is movably connected to the bottom of the first sliding block, the left end swing joint of card pole has the draw-in groove, the right-hand member swing joint of card pole has second buffer spring, the bottom swing joint of card pole has the second trace, the bottom swing joint of second trace has the second slider, the inside second guide rail that runs through and swing joint of second slider.

Furthermore, the top end fixed mounting of pull rod has the spheroid, and spheroidal diameter is greater than limit sleeve's hole diameter, and the pull rod runs through and swing joint has limit sleeve.

Furthermore, the pull rod penetrates through and is movably connected with the piston cylinder, a first buffer spring is sleeved on the circumference of the pull rod, and a limiting block is fixedly mounted on the circumference of the bottom end of the pull rod relative to the first buffer spring.

Furthermore, the number of the limiting blocks is two, the matching relationship between the pull rod and the piston cylinder is clearance fit, and the length of the limiting blocks is greater than the maximum length of the clearance between the pull rod and the piston cylinder.

Furthermore, the first slide block, the first guide rail, the first linkage rod, the clamping rods, the clamping grooves, the second linkage rod, the second slide block and the second guide rail are symmetrically arranged relative to the central axis of the pull rod, and the two clamping rods are movably connected through a second buffer spring.

Furthermore, clamping grooves are formed in two sides of the propeller hub and matched with the clamping rods in position, and the clamping grooves are in clearance fit with the clamping rods in a matching relationship.

The utility model has the advantages that:

1. this quick detach formula propeller structure, through pull rod in the installation device, the limit sleeve, a piston cylinder, first buffer spring, the stopper, the activity round pin axle, first movable rod, the second movable rod, first slider, first guide rail, first link rod, the direction spout, the kelly, the draw-in groove, the second link rod, cooperation setting between second slider and the second guide rail, when dismantling, the pulling pull rod, make first movable rod and second movable rod rebound, thereby make first slider remove to the middle part on first guide rail, thereby first link rod pulling kelly breaks away from the draw-in groove, thereby realize quick effect of dismantling installation axle and propeller hub in order to reach quick dismantlement.

2. This quick detach formula screw structure, when needs are installed, the hole that will install axle and propeller hub is aimed at, and move down, the pulling pull rod this moment, just when getting into the propeller hub hole completely when the kelly, loosen the pull rod, and continue to move down the installation axle, because the kelly receives second buffer spring's elasticity, make the kelly of installation axle both sides all have a power to both sides all the time, thereby when the kelly moves to the draw-in groove coincidence, receive second buffer spring's effect, the kelly gets into the draw-in groove, thereby realize quick installation effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a perspective view of the propeller of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of the structure shown in FIG. 2 according to the present invention;

fig. 4 is a partially enlarged schematic view of the structure at B in fig. 2 according to the present invention.

Description of reference numerals: 1-propeller hub, 2-propeller blade, 3-mounting shaft, 4-mounting device, 401-pull rod, 402-limit sleeve, 403-piston cylinder, 404-first buffer spring, 405-limit block, 406-movable pin shaft, 407-first movable rod, 408-second movable rod, 409-first slide block, 410-first guide rail, 411-first link rod, 412-guide sliding groove, 413-clamping rod, 414-clamping groove, 415-second link rod, 416-second slide block, 417-second guide rail and 418-second buffer spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, a quick-release propeller structure includes a hub 1, blades 2, an installation shaft 3, and an installation device 4, wherein the blades 2 are fixedly installed on the circumference of the hub 1, the installation shaft 3 is fixedly installed at the axis of the hub 1 through the installation device 4, two sides of the hub 1 are provided with a slot 414, the slot 414 is matched with the position of a clamping rod 413, and the slot 414 is in clearance fit with the clamping rod 413.

The mounting device 4 comprises a pull rod 401, the pull rod 401 is movably mounted in the middle of the top end of the mounting shaft 3, a limiting sleeve 402 is sleeved on the circumference of the top of the pull rod 401, a ball body is fixedly mounted at the top end of the pull rod 401, the diameter of the ball body is larger than the diameter of an inner hole of the limiting sleeve 402, the pull rod 401 penetrates through and is movably connected with the limiting sleeve 402, a piston cylinder 403 is fixedly mounted at the top end inside the mounting shaft 3, the pull rod 401 penetrates through and is movably connected with the piston cylinder 403, a first buffer spring 404 is sleeved on the circumference of the pull rod 401, a limiting block 405 is fixedly mounted on the circumference of the bottom end of the first buffer spring 404, the number of the limiting blocks 405 is two, the matching relationship between the pull rod 401 and the piston cylinder 403 is clearance fit, the length of the limiting block 405 is larger than the maximum length of a clearance between the, the two ends of the bottom of the first buffer spring 404 are movably connected with a limiting block 405, a movable pin 406 is movably mounted on the circumferential surface of the bottom end of the pull rod 401, the left side of the bottom of the movable pin 406 is movably connected with a first movable rod 407, the right side of the bottom of the movable pin 406 is movably connected with a second movable rod 408, the bottom end of the first movable rod 407 is movably connected with a first slide block 409, the interior of the first slide block 409 is penetrated and movably connected with a first guide rail 410, the bottom of the first slide block 409 is movably connected with a first linkage rod 411, the bottom end of the first linkage rod 411 is movably connected with a clamping rod 413, the rear circumferential surface of the clamping rod 413 is movably connected with a guide chute 412, the left end of the clamping rod 413 is movably connected with a clamping groove 414, the right end of the clamping rod 413 is movably connected with a second buffer spring 418, the bottom of the clamping rod 413 is movably, the second slide block 416 is internally penetrated and movably connected with a second guide rail 417, the first slide block 409, the first guide rail 410, the first linkage rod 411, the clamping rod 413, the clamping groove 414, the second linkage rod 415, the second slide block 416 and the second guide rail 417 are symmetrically arranged about the central axis of the pull rod 401, the two clamping rods 413 are movably connected through a second buffer spring 418, a ball is installed at the top of the pull rod 401, on one hand, the free-hand operation is facilitated, on the other hand, the top end of the pull rod 401 can be prevented from entering the inside of the installation shaft 3 through the matching between the first buffer spring 404 and the second buffer spring 418, the resetting of the clamping rod 413 is facilitated, the situation that the two clamping rods 413 cannot be reset after the pull rod 401 is loosened due to the upward moving of the pull rod 401 is prevented, through the arrangement of the first guide rail 410, the first slide block 409, the first linkage rod 411, the second guide rail 417, the second slide block 416 and the second linkage rod 415, the stopper 413 is restricted from the top and the bottom at the same time, thereby preventing one side from being biased and the other side from being inclined or dislocated.

When the quick dismounting device is used, through the matching arrangement of the pull rod 401, the limiting sleeve 402, the piston cylinder 403, the first buffer spring 404, the limiting block 405, the movable pin 406, the first movable rod 407, the second movable rod 408, the first slider 409, the first guide rail 410, the first link rod 411, the guide chute 412, the clamping rod 413, the clamping groove 414, the second link rod 415, the second slider 416 and the second guide rail 417 in the mounting device 4, when the dismounting device is used, the pull rod 401 is pulled to enable the first movable rod 407 and the second movable rod 408 to move upwards, so that the first slider 409 moves towards the middle part on the first guide rail 410, the clamping rod 413 is pulled by the first link rod 411 to be separated from the clamping groove 414, so that the quick dismounting effect is achieved by quickly separating the mounting shaft 3 from the hub 1, when the mounting shaft 3 is required to be mounted, the inner hole of the hub 1 is aligned and moves downwards, at the moment, when the clamping rod 413 completely enters the hub 1, the pull rod 401 is loosened, the installation shaft 3 is moved downwards continuously, and the clamping rods 413 on two sides of the installation shaft 3 always have a force towards two sides due to the elastic force of the second buffer spring 418, so that when the clamping rods 413 move to the clamping grooves 414 to be overlapped, the clamping rods 413 enter the clamping grooves 414 under the action of the second buffer spring 418, and the quick installation effect is achieved.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a quick detach formula screw structure, includes propeller hub (1), paddle (2), installation axle (3), installation device (4), its characterized in that: the propeller hub is characterized in that blades (2) are fixedly mounted on the circumference of the propeller hub (1), and a mounting shaft (3) is fixedly mounted at the axis of the propeller hub (1) through a mounting device (4);

the mounting device (4) comprises a pull rod (401), the pull rod (401) is movably mounted in the middle of the top end of a mounting shaft (3), a limiting sleeve (402) is sleeved on the circumference of the top of the pull rod (401), a piston cylinder (403) is fixedly mounted at the top end of the mounting shaft (3), a first buffer spring (404) is movably mounted inside the piston cylinder (403), limiting blocks (405) are movably connected to two ends of the bottom of the first buffer spring (404), a movable pin shaft (406) is movably mounted on the circumference of the bottom end of the pull rod (401), a first movable rod (407) is movably connected to the left side of the bottom of the movable pin shaft (406), a second movable rod (408) is movably connected to the right side of the bottom of the movable pin shaft (406), a first slider (409) is movably connected to a first guide rail (410) in a penetrating manner, the bottom swing joint of first slider (409) has first interlock pole (411), the bottom swing joint of first interlock pole (411) has kelly (413), the back periphery swing joint of kelly (413) has direction spout (412), the left end swing joint of kelly (413) has draw-in groove (414), the right-hand member swing joint of kelly (413) has second buffer spring (418), the bottom swing joint of kelly (413) has second trace (415), the bottom swing joint of second trace (415) has second slider (416), second slider (416) inside runs through and swing joint has second guide rail (417).

2. The fast dismounting type propeller structure of claim 1, wherein: the top end fixed mounting of pull rod (401) has the spheroid, and the internal hole diameter that spheroid diameter is greater than limiting sleeve (402), and pull rod (401) run through and swing joint has limiting sleeve (402).

3. The fast dismounting type propeller structure of claim 1, wherein: pull rod (401) run through and swing joint has piston cylinder (403), and the cover is equipped with first buffer spring (404) on the circumference of pull rod (401), and fixed mounting has stopper (405) on pull rod (401) for the circumference of first buffer spring (404) bottom.

4. The fast dismounting type propeller structure of claim 1, wherein: the number of the limiting blocks (405) is two, the matching relation between the pull rod (401) and the piston cylinder (403) is clearance fit, and the length of the limiting blocks (405) is greater than the maximum length of a clearance between the pull rod (401) and the piston cylinder (403).

5. The fast dismounting type propeller structure of claim 1, wherein: the first sliding block (409), the first guide rail (410), the first linkage rod (411), the clamping rods (413), the clamping grooves (414), the second linkage rod (415), the second sliding block (416) and the second guide rail (417) are symmetrically arranged about a central axis of the pull rod (401), and the two clamping rods (413) are movably connected through the second buffer spring (418).

6. The fast dismounting type propeller structure of claim 1, wherein: clamping grooves (414) are formed in two sides of the propeller hub (1), the positions of the clamping grooves (414) are matched with those of the clamping rods (413), and the matching relationship between the clamping grooves (414) and the clamping rods (413) is clearance fit.