CN214887878U - Split type anti-rotation structure - Google Patents
Split type anti-rotation structure Download PDFInfo
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- CN214887878U CN214887878U CN202120396199.XU CN202120396199U CN214887878U CN 214887878 U CN214887878 U CN 214887878U CN 202120396199 U CN202120396199 U CN 202120396199U CN 214887878 U CN214887878 U CN 214887878U
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Abstract
A split type anti-rotation structure comprises a limiting shaft, wherein a shaft hole is formed in the rear end face of the limiting shaft; the outer wall of the upper side of the limiting shaft is provided with a limiting screw hole communicated with the shaft hole, and the limiting screw hole is vertical to the shaft hole; the front end of the limiting shaft is provided with a limiting head; the outer peripheral surface of the limiting head is provided with a plurality of limiting surfaces which are uniformly distributed in a circumferential manner, and the number of the limiting surfaces is at least three; a plurality of fixing supports which are uniformly distributed in the circumferential direction are arranged outside the limiting head, the number of the fixing supports is the same as that of the limiting surfaces, and the fixing supports are fixed through fixing structures; the fixed support comprises a limit cover, a fixed end arranged at one end of the limit cover and a supporting arm arranged at the other end of the limit cover; the position of the limiting cover corresponds to the position of the limiting surface. The utility model discloses a split type anti-rotation structure not only can need not to change wholly when self local is impaired, effectively reduces the replacement cost, and can effectively guarantee the stability when fan operation.
Description
Technical Field
The utility model relates to an anti-rotation structure, especially a split type anti-rotation structure.
Background
The blower is a device capable of improving gas pressure by mechanical energy to realize gas delivery, when the blower adopts an outer rotor motor as power, an impeller of the blower is directly fixed with an outer rotor of the outer rotor motor, when the outer rotor motor operates, the outer rotor motor drives the impeller to rotate to realize the effect of gas delivery, and when the outer rotor motor operates in the actual use process of the blower, rotating inertia is easily generated, so that an originally fixed motor shaft rotates under the action of inertia, the outer rotor motor integrally rotates, the stable rotation of the impeller is influenced, the gas flow performance is influenced, therefore, the motor shaft is limited and fixed by an anti-rotation structure fixed on a blower shell, the traditional anti-rotation structure is an integrally formed structure, once the anti-rotation structure is locally damaged, in order to ensure the uniformity of the supporting force of the anti-rotation structure, then need change whole anti-rotating structure, lead to the replacement cost high, and external rotor electric machine operation then can inevitably produce the shaking force, this share shaking force then can be through preventing that rotating structure directly transmits to the fan casing on, lead to the fan casing vibrations also to appear, when the fan vibrations, not only easily produce the noise, and can influence gas flow performance equally.
Disclosure of Invention
The utility model aims to solve the current technical problem and provide a split type anti-rotation structure, it not only can need not to change wholly when self local is impaired, effectively reduces the replacement cost, and can effectively guarantee the stability when fan operation.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a split type anti-rotation structure, its characterized in that: the device comprises a limiting shaft, wherein a shaft hole is formed in the rear end face of the limiting shaft; the outer wall of the upper side of the limiting shaft is provided with a limiting screw hole communicated with the shaft hole, and the limiting screw hole is vertical to the shaft hole; the front end of the limiting shaft is provided with a limiting head; the outer peripheral surface of the limiting head is provided with a plurality of limiting surfaces which are uniformly distributed in a circumferential manner, and the number of the limiting surfaces is at least three; a plurality of fixing supports which are uniformly distributed in the circumferential direction are arranged outside the limiting head, the number of the fixing supports is the same as that of the limiting surfaces, and the fixing supports are fixed through fixing structures; the fixed support comprises a limit cover, a fixed end arranged at one end of the limit cover and a supporting arm arranged at the other end of the limit cover; the position of the limiting cover corresponds to the position of the limiting surface, the limiting cover covers the limiting surface, and the limiting cover encloses the limiting head; the fixed end and the supporting arm adjacent to the fixed end are fixed through screws; the end part of the supporting arm is provided with a damping structure.
The shock absorption structure comprises a mounting hole arranged at the end part of the support arm; a shock absorption seat matched with the mounting hole is arranged in the mounting hole, and the shock absorption seat is made of rubber; the shock absorption seat is provided with a fixing hole penetrating through the shock absorption seat; the shock absorption seat consists of a connecting section, a shock absorption section arranged at the rear end of the connecting section and a clamping section arranged at the front end of the connecting section; the shock attenuation section is laminated with support arm rear side lateral wall mutually, and the screens section is laminated with support arm front side lateral wall mutually, and the linkage segment is located the mounting hole.
And an anti-abrasion sleeve matched with the fixed hole is arranged in the fixed hole.
The fixing structure comprises a limiting groove arranged on the lower surface of the end part of the fixing end; a limiting bulge matched with the limiting groove is arranged on the side wall of one side of the supporting arm, which is opposite to the fixed end on the adjacent fixed support; the fixed end is provided with a first through hole matched with the limiting groove, and the limiting bulge is provided with a second through hole corresponding to the first through hole; a bolt passes through the first perforation and the second perforation in sequence and is in threaded connection with a nut pressed on the supporting arm, and the head of the bolt is pressed on the fixed end.
The support arm is twisted at the position close to the end part of the support arm to form a buffer part, and the buffer part is in a gene chain shape.
The utility model has the advantages that:
compared with the prior art, the split anti-rotation structure adopting the structure of the utility model limits and fixes the motor shaft of the external rotor motor mainly through a plurality of fixing brackets which are evenly distributed on the circumference, therefore, when the local part of the anti-rotation structure is damaged, the damaged portion is necessarily present on one of the fixed support or the restraining shaft or the restraining head, and since each component is independent, therefore, only the damaged part needs to be replaced at the moment, other parts do not need to be replaced, thereby effectively reducing the replacement cost, the fixed brackets are fixed with nuts through bolts, the disassembly and the assembly are very simple, the replacement efficiency can be effectively ensured, and the vibration power that the shock mount then can produce external rotor motor effectively cushions, makes the vibration power can't cause the influence to the fan, effectively avoids the fan vibrations to influence the condition of gas flow performance, effectively avoids the fan vibrations to lead to the condition of producing the noise.
Drawings
FIG. 1 is a schematic structural view of a split anti-rotation structure of the present invention;
FIG. 2 is an angular perspective view of the split anti-rotation structure of the present invention;
FIG. 3 is a perspective view of the split anti-rotation structure of the present invention at another angle;
FIG. 4 is a schematic structural view of a fixing bracket;
fig. 5 is a schematic structural view of the damper base.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 to 5, the present invention provides a split anti-rotation structure, which includes a limiting shaft 1, wherein a shaft hole 2 is disposed on a rear end surface of the limiting shaft 1; the outer wall of the upper side of the limiting shaft 1 is provided with a limiting screw hole 3 communicated with the shaft hole 2, and the limiting screw hole 3 is vertical to the shaft hole 2; the front end of the limiting shaft 1 is provided with a limiting head 4; the peripheral surface of the limiting head 4 is provided with a plurality of limiting surfaces 5 which are uniformly distributed in the circumferential direction, and the number of the limiting surfaces 5 is at least three; a plurality of fixing supports 6 which are uniformly distributed in the circumferential direction are arranged outside the limiting head 4, the number of the fixing supports 6 is the same as that of the limiting surfaces 5, and the fixing supports 6 are fixed through fixing structures; the fixed support comprises a limit cover 601, a fixed end 602 arranged at one end of the limit cover 601 and a supporting arm 603 arranged at the other end of the limit cover 601; the position of the limiting cover 601 corresponds to the position of the limiting surface 5, the limiting cover 601 covers the limiting surface 5, and the limiting cover 601 encloses the limiting head 4; the fixed end 602 is fixed with the supporting arm 603 adjacent to the fixed end through screws; the end of the supporting arm 603 is provided with a shock-absorbing structure.
The shock absorption structure comprises a mounting hole 7 arranged at the end part of the supporting arm 603; a shock absorption seat 8 matched with the mounting hole 7 is arranged in the mounting hole 7, and the shock absorption seat is made of 8-position rubber materials; the shock absorption seat 8 is provided with a fixing hole 9 penetrating through the shock absorption seat; the shock absorption seat 8 consists of a connecting section 801, a shock absorption section 802 arranged at the rear end of the connecting section 801 and a clamping section 803 arranged at the front end of the connecting section 801; the shock absorption section 802 is attached to the rear side wall of the support arm 603, the clamping section 803 is attached to the front side wall of the support arm 603, and the connecting section 801 is located in the mounting hole 7.
An abrasion-proof sleeve 10 matched with the fixing hole 9 is arranged in the fixing hole.
The fixing structure comprises a limiting groove 11 arranged on the lower surface of the end part of the fixing end 602; a limiting protrusion 12 matched with the limiting groove 11 is arranged on the side wall of one side of the supporting arm 603 opposite to the fixed end 602 on the adjacent fixed support 6; the fixed end 602 is provided with a first through hole 13 matched with the limiting groove 11, and the limiting bulge 12 is provided with a second through hole 14 corresponding to the first through hole 13; a bolt passes through the first through hole 13 and the second through hole 14 in sequence and is screwed with a nut pressed on the supporting arm 603, and the head of the bolt is pressed on the fixed end 602.
The supporting arm 603 is twisted near its end to form a buffer part 15, and the buffer part 15 is in the shape of a gene chain.
The utility model discloses a use method as follows:
the motor shaft of the outer rotor motor can be firstly inserted into the shaft hole 2 of the limiting shaft 1, then a screw is screwed in the limiting screw hole 3, when the end part of the screw is inserted into the shaft hole 2 and tightly pressed on the surface of the motor shaft, the fixing between the motor shaft and the limiting shaft 1 can be realized, then other screws are inserted through the anti-abrasion sleeve 10 and screwed in the screw connection hole above the fan shell, so that the fixing between the end part of the supporting arm 603 of the fixing support and the fan shell is realized, when the end part of the supporting arm 603 of the fixing support 6 is fixed with the fan shell, the damping section 802 of the damping seat 8 is positioned between the end part of the supporting arm 603 and the fan shell, and the existence of the anti-abrasion sleeve 10 can effectively avoid the abrasion of the damping seat 8 caused by the screw when the end part of the supporting arm 603 is fastened.
When the limiting cover 601 of the fixed support 6 covers the limiting surface 5 of the limiting head 4, the limiting head 4 is enclosed by the limiting cover 601, the limiting cover 601 cannot rotate under the limitation of the limiting surface 5, when the supporting arm 603 of the fixed support 6 is fixed on the fan shell, the limiting cover 601 is limited and fixed accordingly, the limiting cover 601 reversely limits the limiting surface 5 at the moment, so that the limiting head 4 is kept in a fixed state, and when the limiting head 4 is fixed, a motor shaft fixed with the limiting shaft 1 is fixed along with the limiting surface, so that the effect of preventing the motor shaft from rotating is achieved, and the stability of the outer rotor motor in operation is ensured.
When the external rotor electric machine operation produced the vibrations power, this vibration power then can loop through restriction axle 1, on restriction head 4 transmits to fixed bolster 6, if the vibrations power on the fixed bolster 6 will transmit to the fan casing this moment, must then can be through on the damper block 802 of damper block 8, because damper block 8 is the rubber material, consequently when the vibrations power through damper block 802 of damper block 8, damper block 8 then can effectively cushion the shock attenuation to the vibrations power through the elastic property of self material.
In conclusion, the utility model mainly uses a plurality of fixing brackets 6 distributed uniformly on the circumference to limit and fix the motor shaft of the external rotor motor, so when the anti-rotation structure is damaged locally, the damage is necessarily present on one of the fixed support 6 or on the restraining shaft 1, the restraining head 4, since each component is independent, therefore, only the damaged part needs to be replaced at the moment, other parts do not need to be replaced, thereby effectively reducing the replacement cost, and the fixed brackets 6 are fixed with nuts through bolts, so the assembly and disassembly are very simple, the replacement efficiency can be effectively ensured, and the vibration power that the vibration mount 8 then can produce external rotor motor effectively cushions, makes the vibration power can't cause the influence to the fan, effectively avoids the fan vibrations to influence the condition of gas flow performance, effectively avoids the fan vibrations to lead to the condition of producing the noise.
The fixing structure comprises a limiting groove 11 arranged on the lower surface of the end part of the fixed end 602, a limiting protrusion 12 matched with the limiting groove 11 is arranged on the side wall of the support arm 603, which is opposite to the fixed end 602 on the adjacent fixed support 6, and the fixing structure can further improve the fixing stability of the fixed end 602 and the support arm 603 when the fixing structure is fixed by the embedding matching between the limiting protrusion 12 and the limiting groove 11, so that the fixing stability of the anti-rotation structure is ensured.
Claims (5)
1. The utility model provides a split type anti-rotation structure which characterized in that: the device comprises a limiting shaft, wherein a shaft hole is formed in the rear end face of the limiting shaft; the outer wall of the upper side of the limiting shaft is provided with a limiting screw hole communicated with the shaft hole, and the limiting screw hole is vertical to the shaft hole; the front end of the limiting shaft is provided with a limiting head; the outer peripheral surface of the limiting head is provided with a plurality of limiting surfaces which are uniformly distributed in a circumferential manner, and the number of the limiting surfaces is at least three; a plurality of fixing supports which are uniformly distributed in the circumferential direction are arranged outside the limiting head, the number of the fixing supports is the same as that of the limiting surfaces, and the fixing supports are fixed through fixing structures; the fixed support comprises a limit cover, a fixed end arranged at one end of the limit cover and a supporting arm arranged at the other end of the limit cover; the position of the limiting cover corresponds to the position of the limiting surface, the limiting cover covers the limiting surface, and the limiting cover encloses the limiting head; the fixed end and the supporting arm adjacent to the fixed end are fixed through screws; the end part of the supporting arm is provided with a damping structure.
2. A split-type anti-rotation structure according to claim 1, wherein: the shock absorption structure comprises a mounting hole arranged at the end part of the support arm; a shock absorption seat matched with the mounting hole is arranged in the mounting hole, and the shock absorption seat is made of rubber; the shock absorption seat is provided with a fixing hole penetrating through the shock absorption seat; the shock absorption seat consists of a connecting section, a shock absorption section arranged at the rear end of the connecting section and a clamping section arranged at the front end of the connecting section; the shock attenuation section is laminated with support arm rear side lateral wall mutually, and the screens section is laminated with support arm front side lateral wall mutually, and the linkage segment is located the mounting hole.
3. A split-type anti-rotation structure according to claim 2, wherein: and an anti-abrasion sleeve matched with the fixed hole is arranged in the fixed hole.
4. A split-type anti-rotation structure according to claim 1, wherein: the fixing structure comprises a limiting groove arranged on the lower surface of the end part of the fixing end; a limiting bulge matched with the limiting groove is arranged on the side wall of one side of the supporting arm, which is opposite to the fixed end on the adjacent fixed support; the fixed end is provided with a first through hole matched with the limiting groove, and the limiting bulge is provided with a second through hole corresponding to the first through hole; a bolt passes through the first perforation and the second perforation in sequence and is in threaded connection with a nut pressed on the supporting arm, and the head of the bolt is pressed on the fixed end.
5. A split-type anti-rotation structure according to claim 1, wherein: the support arm is twisted at the position close to the end part of the support arm to form a buffer part, and the buffer part is in a gene chain shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396199.XU CN214887878U (en) | 2021-02-23 | 2021-02-23 | Split type anti-rotation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396199.XU CN214887878U (en) | 2021-02-23 | 2021-02-23 | Split type anti-rotation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887878U true CN214887878U (en) | 2021-11-26 |
Family
ID=78859039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120396199.XU Active CN214887878U (en) | 2021-02-23 | 2021-02-23 | Split type anti-rotation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214887878U (en) |
-
2021
- 2021-02-23 CN CN202120396199.XU patent/CN214887878U/en active Active
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