CN219220809U

CN219220809U - Fan shaft not easy to loosen

Info

Publication number: CN219220809U
Application number: CN202223374875.7U
Authority: CN
Inventors: 孙伟; 刘兆千; 李帅; 宋文雷
Original assignee: Liaoning Junchi Environmental Protection Technology Co ltd
Current assignee: Liaoning Junchi Environmental Protection Technology Co ltd
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-20
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a fan shaft not easy to loosen, and relates to the technical field of fan shafts. According to the utility model, the movable block slides in the limiting cylinder by rotating the limiting cylinder, so that the threaded inner connecting cylinder is rotated for installation, the fan shaft is conveniently installed on the fan, and meanwhile, the movable cylinder is rotated, so that the threaded installation rod is rotated, and the fan shaft is also conveniently installed and fixed.

Description

Fan shaft not easy to loosen

Technical Field

The utility model relates to the technical field of fan shaft treatment, in particular to a fan shaft which is not easy to loosen.

Background

The fan main shaft is a component for transmitting torque, stainless steel materials are adopted, the axial deflection of the main shaft is directly transmitted to the input shaft of the gear box, and the damage problem is generally repaired by adopting a welding repair and electroplating method.

For example, the Chinese patent publication No. CN204591814U discloses the following technical scheme: the utility model discloses a device for disassembling an impeller of a rotor of an induced draft fan, which comprises a travelling crane, a cutting gun and a puller, wherein the travelling crane is used for suspending the rotor of the induced draft fan, the cutting gun is arranged at a hub of the rotor of the induced draft fan and can reciprocate in an arc line around the hub, the puller comprises a jack, a stud bolt and a pressing plate, the bottom end of the jack is fixedly connected to a fixed table, the ejector rod is connected with the pressing plate through the stud bolt, and the pressing plate is connected to the rotor of the induced draft fan. According to the utility model, the induced draft fan rotor is vertically hung on the travelling crane, four cutting guns are used for simultaneously reciprocating arc movement, heating and expansion to generate looseness on the periphery of the hub, the puller acts on the fan rotor shaft, and the self-weight effect of the fan rotor shaft is added, so that the impeller can be smoothly withdrawn from the shaft shoulder, the impeller is detached, the convenience in detachment is realized, the use is simple, the problems of difficult detachment and complicated detachment of the induced draft fan rotor in the prior art are effectively solved, and the induced draft fan rotor is assembled by using the prior equipment, and has the characteristics of simple structure and low cost.

The following problems exist in the prior art:

1. in the prior art, the fan shaft is easy to loosen during installation, so that the installation of the device is not firm enough, and the fan shaft is easy to break away after the fan blade is installed, so that the fan shaft is not suitable for being used in a fan;

2. the fan shaft among the prior art is inconvenient to install the flabellum more for when the installation, be difficult to fix, make the flabellum easily take place to rock, influence the fan effect.

Disclosure of Invention

The utility model provides a fan shaft which is not easy to loosen, and aims to solve the problems in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a difficult not hard up fan axle, includes the interior axle, the outer wall fixedly connected with antifriction bearing subassembly of interior axle, the outer wall sliding connection of interior axle has outer axle, spacing spout has been seted up to the inner wall of outer axle, the outer wall fixedly connected with spacing section of thick bamboo of interior axle, the inner wall sliding connection of spacing section of thick bamboo has the movable block, the outer wall fixedly connected with screw thread inscription section of thick bamboo of movable block.

The outer wall fixedly connected with connecting rod of interior axle, the outer wall sliding connection of connecting rod has a movable section of thick bamboo, the outer wall fixedly connected with spacing fixture block of movable section of thick bamboo, the one end fixedly connected with screw thread installation pole of connecting rod.

The outer wall fixedly connected with strut of outer axle, the outer wall threaded connection of strut has the screw extension bar, the outer wall threaded connection of screw extension bar has the nut.

The technical scheme of the utility model is further improved as follows: the inner part of the rolling bearing assembly comprises a supporting frame and balls, the outer wall of the inner shaft is fixedly connected with the supporting frame, and the inner wall of the supporting frame is in rolling connection with the balls.

By adopting the technical scheme, the rolling bearing assembly in the scheme is convenient to slide, so that the sliding is smoother.

The technical scheme of the utility model is further improved as follows: the ball is embedded into the support frame, and the outer wall of the ball moves circumferentially along the limiting sliding groove.

By adopting the technical scheme, the support frame in the scheme is convenient for limiting the balls.

The technical scheme of the utility model is further improved as follows: the inner diameter of the inner shaft is equal to the distance between the movable blocks, and the movable blocks are mutually symmetrical along the central axis of the inner shaft.

By adopting the technical scheme, the movable block in the scheme is convenient to slide, so that the installation is simpler.

The technical scheme of the utility model is further improved as follows: the inner wall of the limiting cylinder is provided with a movable groove, and the outer wall of the movable block is in sliding connection with the groove wall of the movable groove.

By adopting the technical scheme, the limiting cylinder in the scheme is convenient to play a limiting role.

The technical scheme of the utility model is further improved as follows: the outer wall fixedly connected with lug of connecting rod, and the inner wall sliding connection of lug along movable section of thick bamboo.

By adopting the technical scheme, the connecting rod in the scheme plays a role in connection, so that the connection is firmer.

The technical scheme of the utility model is further improved as follows: the thread extension rod penetrates through the support frame and is in threaded connection with the inner wall of the nut.

By adopting the technical scheme, the threaded extension bar in the scheme is convenient for installing fan blades.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides a fan shaft which is difficult to loosen, wherein the fan shaft is conveniently installed on a fan by rotating the limiting cylinder through the mutual matching of an inner shaft, a rolling bearing assembly, an outer shaft, a limiting sliding groove, the limiting cylinder, a movable block, a threaded inner connecting cylinder, a connecting rod, the movable cylinder, a limiting clamping block, a threaded installation rod, a supporting frame, a threaded extension rod and a nut, and the movable block slides in the limiting cylinder to enable the threaded inner connecting cylinder to rotate for installation.

2. The utility model provides a fan shaft which is difficult to loosen, wherein a fan blade is supported by a support frame through mutual matching of a threaded mounting rod, the support frame, a threaded extension rod, a nut, the support frame and balls, the threaded extension rod penetrates through the support frame, so that the fan blade is conveniently mounted on the fan shaft, and the fan blade is conveniently mounted by fixing the nut, so that the fan blade is more firmly mounted.

Drawings

FIG. 1 is a side cross-sectional view of the present utility model;

FIG. 2 is a front cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of FIG. 1A in accordance with the present utility model;

fig. 4 is an overall view of the present utility model.

In the figure: 1. an inner shaft; 2. a rolling bearing assembly; 3. an outer shaft; 4. limiting sliding grooves; 5. a limiting cylinder; 6. a movable block; 7. a threaded inner connecting cylinder; 8. a connecting rod; 9. a movable cylinder; 10. a limit clamping block; 11. a threaded mounting rod; 12. a supporting frame; 13. a threaded extension bar; 14. a nut; 15. a support; 16. and (3) rolling balls.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-4, the utility model provides a fan shaft which is not easy to loosen, comprising an inner shaft 1, wherein the outer wall of the inner shaft 1 is fixedly connected with a rolling bearing assembly 2, the outer wall of the inner shaft 1 is slidably connected with an outer shaft 3, the inner wall of the outer shaft 3 is provided with a limiting chute 4, the outer wall of the inner shaft 1 is fixedly connected with a limiting cylinder 5, the inner wall of the limiting cylinder 5 is slidably connected with a movable block 6, and the outer wall of the movable block 6 is fixedly connected with a threaded inner cylinder 7.

The outer wall fixedly connected with connecting rod 8 of interior axle 1, the outer wall sliding connection of connecting rod 8 has a movable section of thick bamboo 9, the outer wall fixedly connected with spacing fixture block 10 of movable section of thick bamboo 9, the one end fixedly connected with screw thread installation pole 11 of connecting rod 8.

The outer wall of the outer shaft 3 is fixedly connected with a support frame 12, the outer wall of the support frame 12 is in threaded connection with a threaded extension rod 13, and the outer wall of the threaded extension rod 13 is in threaded connection with a nut 14.

In this embodiment, through the mutual cooperation of the inner shaft 1, the rolling bearing assembly 2, the outer shaft 3, the limit chute 4, the limit cylinder 5, the movable block 6, the threaded inner cylinder 7, the connecting rod 8, the movable cylinder 9, the limit clamping block 10, the threaded mounting rod 11, the bracket 12, the threaded extension rod 13 and the nut 14, the limit cylinder 5 is rotated so that the movable block 6 slides inside the limit cylinder 5, the threaded inner cylinder 7 is rotated to be mounted, the fan shaft is conveniently mounted on the fan, and simultaneously, the movable cylinder 9 is rotated so that the threaded mounting rod 11 is rotated, and the fan shaft is also conveniently mounted and fixed

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the rolling bearing assembly 2 comprises a support frame 15 and balls 16 inside, the support frame 15 is fixedly connected to the outer wall of the inner shaft 1, and the balls 16 are connected to the inner wall of the support frame 15 in a rolling manner.

In this embodiment, adopt above-mentioned technical scheme, antifriction bearing subassembly 2 in this scheme is convenient for slide for it is more smooth to slide, uses mutually supporting through screw thread installation pole 11, strut 12, screw thread extension 13, nut 14, strut 15 and ball 16, supports the flabellum through strut 12, runs through strut 12 with screw thread extension 13, is convenient for install the flabellum on the fan axle, fixes through nut 14, is convenient for install the flabellum, makes the installation more firm.

Example 3

As shown in fig. 1-4, on the basis of embodiment 1 and embodiment 2, the present utility model provides a technical solution: preferably, the balls 16 are embedded in the support frame 15, and the outer wall of the balls 16 moves along the limit chute 4 in a circular manner.

In this embodiment, the above technical solution is adopted, and the support 15 in this solution is convenient for limiting the balls 16.

Preferably, the inner diameter of the inner shaft 1 is equal to the distance of the movable blocks 6, and the movable blocks 6 are symmetrical to each other along the central axis of the inner shaft 1.

In this embodiment, the above technical solution is adopted, and the movable block 6 in this solution is convenient for sliding, so that the installation is simpler.

Further, a movable groove is formed in the inner wall of the limiting cylinder 5, and the outer wall of the movable block 6 is in sliding connection with the groove wall of the movable groove.

In this embodiment, the above technical solution is adopted, and the limiting cylinder 5 in this solution is convenient for playing a limiting role.

Further, the outer wall of the connecting rod 8 is fixedly connected with a bump, and the bump is slidingly connected along the inner wall of the movable barrel 9.

In this embodiment, the above technical solution is adopted, and the connecting rod 8 in this solution plays a role in connection, so that the connection is firmer.

In addition, the screw extension 13 is screwed through the bracket 12 to the inner wall of the nut 14.

In this embodiment, the above technical solution is adopted, and the threaded extension bar 13 in this solution is convenient for installing fan blades.

The working principle of the wind turbine shaft which is not easy to loosen is specifically described below.

As shown in fig. 1-4, the limiting cylinder 5 is rotated, the movable block 6 slides in the limiting cylinder 5, the threaded inner connecting cylinder 7 is rotated to install, the fan shaft is installed on the fan, meanwhile, the movable cylinder 9 is rotated, the threaded installation rod 11 is rotated to install and fix the fan shaft, two ends of the threaded installation rod can be connected with the central shaft of the fan, the connection modes are the same, the threaded installation rod is screwed up in rotation, the directions of threads and the rotation direction of the fan are opposite when the threaded installation rod rotates, the fan blade is supported through the supporting frame 12, the threaded extension rod 13 penetrates through the supporting frame 12, the fan blade is installed on the fan shaft and fixed through the nut 14, the fan blade is installed, the limiting clamping block 10 is arranged on the movable cylinder 9, the limiting effect is achieved after the installation, and the offset is placed and separated from the fan.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims

1. The utility model provides a difficult not hard up fan axle, includes interior axle (1), its characterized in that: the novel inner shaft is characterized in that the outer wall of the inner shaft (1) is fixedly connected with a rolling bearing assembly (2), the outer wall of the inner shaft (1) is slidably connected with an outer shaft (3), a limiting sliding groove (4) is formed in the inner wall of the outer shaft (3), a limiting cylinder (5) is fixedly connected with the outer wall of the inner shaft (1), a movable block (6) is slidably connected with the inner wall of the limiting cylinder (5), and a threaded inner cylinder (7) is fixedly connected with the outer wall of the movable block (6);

the device is characterized in that a connecting rod (8) is fixedly connected to the outer wall of the inner shaft (1), a movable barrel (9) is slidably connected to the outer wall of the connecting rod (8), a limit clamping block (10) is fixedly connected to the outer wall of the movable barrel (9), and a threaded mounting rod (11) is fixedly connected to one end of the connecting rod (8);

the outer wall fixedly connected with strut (12) of outer axle (3), the outer wall threaded connection of strut (12) has screw extension bar (13), the outer wall threaded connection of screw extension bar (13) has nut (14).

2. The hard-to-loosen fan shaft according to claim 1, wherein: the inner part of the rolling bearing assembly (2) comprises a supporting frame (15) and balls (16), the outer wall of the inner shaft (1) is fixedly connected with the supporting frame (15), and the inner wall of the supporting frame (15) is in rolling connection with the balls (16).

3. A fan shaft which is not easy to loosen according to claim 2, wherein: the balls (16) are embedded into the support frame (15), and the outer walls of the balls (16) do circular motion along the limit sliding groove (4).

4. The hard-to-loosen fan shaft according to claim 1, wherein: the inner diameter of the inner shaft (1) is equal to the distance between the movable blocks (6), and the movable blocks (6) are symmetrical to each other along the central axis of the inner shaft (1).

5. The hard-to-loosen fan shaft according to claim 1, wherein: the inner wall of the limiting cylinder (5) is provided with a movable groove, and the outer wall of the movable block (6) is in sliding connection with the groove wall of the movable groove.

6. The hard-to-loosen fan shaft according to claim 1, wherein: the outer wall of the connecting rod (8) is fixedly connected with a lug, and the lug is in sliding connection with the inner wall of the movable barrel (9).

7. The hard-to-loosen fan shaft according to claim 1, wherein: the thread extension rod (13) penetrates through the supporting frame (12) and is in threaded connection with the inner wall of the nut (14).