CN216478022U

CN216478022U - Wheel disc structure

Info

Publication number: CN216478022U
Application number: CN202122569392.1U
Authority: CN
Inventors: 柳西; 赵亚楠; 马克欲; 张伟
Original assignee: Cic Luoyang Heavy Machinery Co ltd
Current assignee: Cic Luoyang Heavy Machinery Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-05-10
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a wheel disc structure, which comprises a disc-shaped wheel disc body, wherein a circular boss extending outwards is arranged at the central position of the upper surface of the body, the utility model has simple design structure and convenient use, not only can facilitate the processing and the manufacture of the wheel disc, but also improve the connecting area with the fan blades and the firmness after the connection with the fan blades, in addition, the surface of the wheel disc is additionally provided with a second threaded hole for installing the anti-drop ring, when the fan blade is assembled, the steel wire rope penetrating through the inner part of the fan blade can be connected to the anti-drop ring, when the flabellum breaks, can utilize anti-drop ring and wire rope to play safety protection's effect, reduce the safe risk of industrial fan in the use.

Description

Wheel disc structure

Technical Field

The utility model belongs to the technical field of design of industrial fan parts, and particularly relates to a wheel disc structure.

Background

The wheel disc is an important part for connecting a motor spindle and fan blades in an industrial fan, the structure of the wheel disc is mostly shown in fig. 6 at present, a plane is milled in the circumferential direction of the wheel disc, bolt holes are formed in the plane, the bolt holes are used for being connected with the fan blades of the fan, at least two bolt holes are formed in each plane in order to improve the connection firmness, so that the overall thickness of the wheel disc is increased, the overall weight of the wheel disc is increased, the material cost is excessively high, the manufacturing and processing difficulty of the wheel disc with the structure is high, and the defect that the processing technology is complex is overcome; in addition, when the wheel disc with the structure is used, when the fan blades are broken, no protective measures are taken, so that the fan blades are easy to drop, and the life safety of personnel is threatened.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a wheel disc structure which is simple and reasonable in structural design and convenient to use, can be used for conveniently processing and manufacturing the wheel disc, improving the area of connection with fan blades and the firmness after connection with the fan blades, and additionally, a second threaded hole is formed in the surface of the wheel disc and used for installing an anti-falling ring.

The technical scheme adopted by the utility model is as follows: the utility model provides a rim plate structure, includes discoid rim plate body, and the upper surface central point of body puts and is equipped with the circular boss of outside extension, offers a plurality of undercut's recess in the upper surface circumferencial direction of body, and the one end of recess link up the setting of body lateral wall, and at least two screw hole one that are used for connecting the flabellum are offered on the surface of every recess, and the body surface position between two adjacent recesses is seted up screw hole two.

The center position of circular boss sets up the centre bore that link up body and circular boss, and the middle part position of centre bore is provided with the spacing ring that the diameter is less than the centre bore diameter, sets up the keyway on the lateral wall of centre bore.

The back center of the body is provided with a step hole with the diameter size larger than that of the center hole.

The surface of the circular boss is provided with a plurality of connecting holes which are uniformly distributed around the center of the circular boss, and the connecting holes penetrate through the circular boss and the body.

When the wheel disc structure is installed, after a key bar is connected to a motor shaft, the motor shaft is inserted into a central hole until the end part of the motor shaft is contacted with the end face of a limiting ring, then a connecting end cover with the same inner diameter as the step hole is installed at the position of the step hole, the center of the connecting end cover is provided with a hole, and the connecting end cover is connected with the motor shaft by using a bolt, so that the connection between the wheel disc and the motor is completed; when the wheel disc is connected with the fan blades, the end parts of the fan blades are arranged in the groove, the fan blade end parts are fixed at the first threaded hole by bolts, the anti-falling ring is arranged on the second threaded hole, the anti-falling steel wire rope end parts inside the fan blades are connected onto the anti-falling ring, and therefore when the fan blades are broken, the steel wire rope and the anti-falling ring are used for preventing the fan blades from falling off, and the safety protection effect is achieved.

A circular boss extending outwards is arranged at the central position of the upper surface of the body; the purpose of this is: firstly, in order to reserve enough space between the upper surface of the body and the motor, the installation and the disassembly of parts such as fan blades, anti-falling rings and the like are convenient, and the interference is prevented; secondly, the weight of the whole wheel disc is reduced under the condition of increasing the thickness of the whole wheel disc body, so that the cost and the difficulty in the processing process are reduced; thirdly, the motor shaft is connected to the center of the circular bulge conveniently.

The fan blade comprises a body, wherein a plurality of grooves which are sunken downwards are formed in the circumferential direction of the upper surface of the body, one end of each groove penetrates through the side wall of the body, and the surface of each groove is provided with at least two first threaded holes used for connecting fan blades; the purpose of this is: replace current set up the platform in the mode of circumference position, can be favorable to the processing of rim plate, reduce the technology degree of difficulty, and the both sides wall of recess also can play certain limiting displacement by the tip of flabellum, have with the advantage that the flabellum fastness is high, connection area is big.

A second threaded hole is formed in the surface of the body between every two adjacent grooves; the purpose of this is: the wire rope is used for connecting the wire rope in the fan blade, when the fan blade is broken, the end part of the wire rope can be fixed on the anti-falling ring at the two threaded holes, and the effect of safety protection is achieved.

The utility model has the beneficial effects that:

the anti-drop ring is additionally arranged on the surface of the wheel disc and used for installing the anti-drop ring, when the fan blade is assembled, a steel wire rope penetrating through the inside of the fan blade can be connected to the anti-drop ring, and when the fan blade is broken, the anti-drop ring and the steel wire rope can be used for playing a role in safety protection, so that the safety risk of the industrial fan in the use process is reduced.

Drawings

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

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is a structural view of the anti-drop ring of the present invention;

FIG. 5 is a view showing an installation structure of the wheel disc of the present invention;

fig. 6 is a schematic view of a prior art wheel disc.

The labels in the figure are: 1. a body; 2. a circular boss; 3. a first threaded hole; 4. a groove; 5. a second threaded hole; 6. a keyway; 7. a limiting ring; 8. connecting holes; 9. a central bore; 10. a stepped bore; 11. an anti-drop ring; 12. connecting an end cover; 13. a drop-proof plate; 14. a circular plate.

Detailed Description

The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings.

As shown in the figure, a rim plate structure, including discoid rim plate body 1, the upper surface central point of body 1 puts and is equipped with the circular boss 2 of outside extension, offers a plurality of undercut's recess 4 at the upper surface circumferencial direction of body 1, and the one end of recess 4 link up the setting of body 1 lateral wall, and at least two screw hole one 3 that are used for connecting the flabellum are offered on every recess 4's surface, and screw hole two 5 are offered to body 1 surface position between two adjacent recesses 4, and screw hole two 5 departments are used for installing anti-drop ring 11.

The center position of circular boss 2 sets up the centre bore 9 that link up body 1 and circular boss 2, the middle part position of centre bore 9 is provided with the spacing ring 7 that the diameter is less than centre bore 9 diameter, keyway 6 has been seted up on the lateral wall of centre bore 9, wherein, spacing ring 7 is used for spacing the tip of motor shaft, and install connection end cover 12 in the position of step hole 10 after spacing, connect end cover 12 middle part and utilize the bolt to connect, make rim plate and motor shaft fix a position in the axis direction, keyway 6 is used for behind the installation keybar on the motor shaft, realize the radial spacing of motor shaft and rim plate, prevent to produce relative rotation between motor shaft and the rim plate.

The back center of the body 1 is provided with a step hole 10 with the diameter size larger than that of the center hole 9.

A plurality of connecting holes 8 around 2 central evenly distributed of circular boss are seted up on the surface of circular boss 2, connecting hole 8 runs through circular boss 2 and body 1, wherein, the purpose that sets up connecting hole 8 is, as shown in fig. 5, penetrate the bolt from the bottom up in connecting hole 8 department, install a circular slab 14 that a diameter is greater than 2 external diameters of circular boss in the top of circular boss 2, set up an anti-falling board 13 in the outside of circular boss 2, anti-falling board 13 links to each other with the motor cabinet, be used for under the cracked condition appears in the motor shaft, when the rim plate drops downwards, can make circular slab 14 drop on anti-falling board 13, play safety protection's effect.

When the wheel disc structure is installed, after a key bar is connected to a motor shaft, the motor shaft is inserted into the central hole 9 until the end part of the motor shaft is contacted with the end face of the limiting ring 7, then a connecting end cover 12 with the same inner diameter as the step hole 10 is installed at the position of the step hole 10, a hole is formed in the center of the connecting end cover 12, the connecting end cover 12 is connected with the motor shaft through a bolt, and then the connection between the wheel disc and the motor is completed; when the wheel disc is connected with the fan blades, the end parts of the fan blades are arranged in the grooves 4, the fan blade end parts are fixed at the first threaded hole 3 by bolts, the anti-falling ring 11 is mounted on the second threaded hole 5, the anti-falling steel wire rope end parts inside the fan blades are connected onto the anti-falling ring 11, and therefore when the fan blades are broken, the steel wire rope and the anti-falling ring 11 are used for preventing the fan blades from falling off, and the safety protection effect is achieved.

Claims

1. A wheel disc structure characterized by: including discoid rim plate body, the upper surface central point of body puts and is equipped with the circular boss of outside extension, offers a plurality of recesses of undercut in the upper surface circumferencial direction of body, and the one end of recess link up the setting of body lateral wall, and at least two screw hole one that are used for connecting the flabellum are offered on the surface of every recess, and screw hole two is offered to body surface position between two adjacent recesses.

2. A wheel disc structure according to claim 1, wherein: the center position of circular boss sets up the centre bore that link up body and circular boss, and the middle part position of centre bore is provided with the spacing ring that the diameter is less than the centre bore diameter, has seted up the keyway on the lateral wall of centre bore.

3. A wheel disc structure according to claim 1, wherein: the center of the back of the body is provided with a step hole with the diameter size larger than that of the central hole.

4. A wheel disc structure according to claim 1, wherein: the surface of the circular boss is provided with a plurality of connecting holes which are uniformly distributed around the center of the circular boss, and the connecting holes penetrate through the circular boss and the body.