CN215673195U - Electric main shaft and bearing protection device - Google Patents
Electric main shaft and bearing protection device Download PDFInfo
- Publication number
- CN215673195U CN215673195U CN202121503960.1U CN202121503960U CN215673195U CN 215673195 U CN215673195 U CN 215673195U CN 202121503960 U CN202121503960 U CN 202121503960U CN 215673195 U CN215673195 U CN 215673195U
- Authority
- CN
- China
- Prior art keywords
- bearing
- spacer
- protection device
- rotating shaft
- spacer bush
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 91
- 238000001816 cooling Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 206010016256 fatigue Diseases 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses an electric main shaft and a bearing protection device, wherein the bearing protection device is used for sleeving a rotating shaft, two ends of the rotating shaft are respectively installed in a first bearing seat through a first bearing and a second bearing, the bearing protection device is positioned between the first bearing and the second bearing, the bearing protection device comprises a first spacer bush and a second spacer bush which sleeves the first spacer bush, the inner side of the first spacer bush is contacted with the rotating shaft, the outer side of the second spacer bush is contacted with the inner wall of the first bearing seat, a matched non-plane is arranged between the first spacer bush and the second spacer bush, and a gap is arranged between the non-planes. Above-mentioned bearing protection device avoids the axial skew of pivot directly to transmit to the bearing on, provides the guard action to the bearing, reduces the fatigue wear risk of bearing, ensures the machining effect and the product life of electricity main shaft.
Description
Technical Field
The utility model relates to the technical field of bearing protection, in particular to a bearing protection device. It also relates to an electric spindle.
Background
The bearing is an important part in mechanical equipment, and the main function of the bearing is to support a mechanical rotating body (rotating shaft), reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.
In the working process of the rotating shaft of the electric spindle, besides necessary rotating motion, axial offset exists, the offset is a load for a bearing supporting the rotating shaft, and if the load is too large, the bearing is damaged, and the processing effect and the service life of a product are influenced. The existing solution is to cover the rotating shaft with a spacer sleeve, and to transmit the axial overload on the rotating shaft by the spacer sleeve, thereby avoiding the damage to the bearing. However, the existing spacer bush has a single form, the protection effect is limited, and the risk of fatigue wear of the bearing is high.
Therefore, how to provide a bearing protection device that solves the above technical problems makes the technical problems to be solved urgently needed by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bearing protection device, which can prevent the axial deviation of a rotating shaft from being directly transmitted to a bearing, protect the bearing, reduce the fatigue wear risk of the bearing, and ensure the processing effect and the product life of an electric spindle. Another object of the present invention is to provide an electric spindle.
In order to achieve the above object, the present invention provides a bearing protection device, which is used for being sleeved on a rotating shaft, two ends of the rotating shaft are respectively installed in a first bearing seat through a first bearing and a second bearing, the bearing protection device is located between the first bearing and the second bearing, the bearing protection device includes a first spacer bush and a second spacer bush that sheathes the first spacer bush, an inner side of the first spacer bush contacts with the rotating shaft, an outer side of the second spacer bush contacts with an inner wall of the first bearing seat, the first spacer bush and the second spacer bush have a non-planar surface that is matched with each other between the two, and a gap is provided between the non-planar surfaces.
Preferably, the non-planar surface includes a concave portion and a convex portion, the concave portion is used for being clamped into another non-planar convex portion, and the convex portion is used for being clamped into another non-planar concave portion.
Preferably, the longitudinal section of the first spacer and the longitudinal section of the second spacer are L-shaped, the convex part is located at the transverse end of the L-shape, and the concave part is located at the vertical end of the L-shape.
Preferably, the axial clearance between the first spacer and the second spacer, i.e. the clearance between the non-planar faces, is less than the play of the first bearing and the second bearing.
The utility model also provides an electric spindle which comprises a machine body shell and the bearing protection device, wherein a fixed stator is arranged on the inner side of the machine body shell, a movable rotor is arranged on the inner side of the stator, and the rotor is sleeved on the rotating shaft.
Preferably, the cooling device further comprises a cooling assembly arranged at the tail end of the machine body shell and a communication control system arranged outside the machine body shell.
Compared with the prior art, the bearing protection device provided by the utility model is used for being sleeved on the rotating shaft, and two ends of the rotating shaft are respectively installed in the first bearing seat through the first bearing and the second bearing; the bearing protection device is positioned between the first bearing and the second bearing and comprises a first spacer bush and a second spacer bush, the first spacer bush is sleeved by the second spacer bush, the inner side of the first spacer bush is contacted with the rotating shaft, the outer side of the second spacer bush is contacted with the inner wall of the first bearing seat, the first spacer bush and the second spacer bush are provided with matched non-planes between the first spacer bush and the second spacer bush, and a gap is formed between the non-planes. When the rotating shaft of the electric main shaft generates axial deviation, a small gap exists between the first spacer bush and the second spacer bush, the load is transmitted to the first spacer bush through the rotating shaft, then transmitted to the second spacer bush through the first spacer bush, and finally transmitted to the first bearing seat through the second spacer bush, so that the load is transferred out for consumption, the axial deviation of the rotating shaft is prevented from being directly transmitted to the bearing, the bearing is protected, the fatigue wear risk of the bearing is reduced, and the processing effect and the product life of the electric main shaft are guaranteed.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic application diagram of a bearing protection device provided in an embodiment of the present invention;
fig. 2 is an enlarged schematic view of the bearing protection device of fig. 1.
Wherein:
1-a bearing protection device, 2-a first bearing seat, 3-a first bearing, 4-a second bearing, 5-a rotating shaft, 6-a rotor, 7-a stator, 8-a machine body shell, 9-a communication control system, 10-a cooling assembly, 11-a second bearing seat, 101-a first spacer bush and 102-a second spacer bush.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic view illustrating an application of a bearing protection device according to an embodiment of the present invention, and fig. 2 is an enlarged schematic view of the bearing protection device in fig. 1.
In a first specific embodiment, the bearing protection device 1 provided by the present invention is sleeved on a rotating shaft 5, two ends of the rotating shaft 5 are respectively installed in the first bearing seat 2 through a first bearing 3 and a second bearing 4, and the bearing protection device 1 is located between the first bearing 3 and the second bearing 4. The bearing protection device 1 comprises a first spacer 101 and a second spacer 102, the first spacer 101 is sleeved by the second spacer 102, the inner side of the first spacer 101 is in contact with the rotating shaft 5, the outer side of the second spacer 102 is in contact with the inner wall of the first bearing seat 2, the first spacer 101 and the second spacer 102 have matched non-planes between the two, and a gap is formed between the non-planes.
In this embodiment, the first spacer 101 is equivalent to an inner ring spacer of the rotating shaft 5, the second spacer 102 is equivalent to an outer ring spacer of the rotating shaft 5, and a small gap exists between the first spacer 101 and the second spacer 102, so that when the rotating shaft 5 of the electric spindle is axially offset due to vibration, tool changing and the like, a load is transmitted from the rotating shaft 5 to the first spacer 101, then transmitted from the first spacer 101 to the second spacer 102, and finally transmitted from the second spacer 102 to the first bearing seat 2, so that the load is transferred out for consumption, the axial offset of the rotating shaft 5 is prevented from being directly transmitted to a bearing, the bearing is protected, the fatigue wear risk of the bearing is reduced, and the processing effect and the product life of the electric spindle are guaranteed.
It should be noted that the core of this embodiment is the first spacer 101 and the second spacer 102 with a small gap therebetween, and the bonding surface of the two is non-planar, that is, the two conventional spacers are not nested together. The non-planar arrangement may be an inclined slope or a stepped surface with several steps, or may be a non-planar surface with a saw-tooth shape or other shapes, which also falls within the scope of the present embodiment.
Illustratively, the non-planar surface includes a concave portion and a convex portion, that is, the non-planar surface has a convex portion and a concave portion, the convex portion of the first spacer 101 is used for snapping into the concave portion of the second spacer 102, and the convex portion of the second spacer 102 is used for snapping into the concave portion of the first spacer 101.
Specifically, the longitudinal cross section of the first spacer 101 and the second spacer 102 is L-shaped, the protruding portion is located at the lateral end of the L-shape, the recessed portion is located at the vertical end of the L-shape, the protruding portion is equivalent to a shoulder on the recessed portion, and when the first spacer 101 and the second spacer 102 transmit a load, the shoulders of the first spacer and the second spacer are in contact with each other.
In the present embodiment, the axial clearance between the first spacer 101 and the second spacer 102, that is, the clearance between the non-planar surfaces, is smaller than the play between the first bearing 3 and the second bearing 4, and when the rotating shaft 5 is axially offset, the axial clearance between the first spacer 101 and the second spacer 102 is used as a variation distance, and the load transmission is realized in the range of the variation distance, so that the bearing is prevented from being damaged by the play larger than the bearing after exceeding the range.
The utility model also provides an electric spindle which comprises a machine body shell 8 and the bearing protection device 1, wherein a fixed stator 7 is arranged on the inner side of the machine body shell 8, a movable rotor 6 is arranged on the inner side of the stator 7, and the rotor 6 is sleeved on the rotating shaft 5.
In the present embodiment, the body housing 8 is provided therein with a second bearing housing 11 connected to the rotating shaft 5 through a bearing, and the first bearing housing 2 is fixed to an end portion of the body housing 8. The rotor 6 rotates under the action of the stator 7, the rotor 6 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives a cutter clamped by the rotating shaft 5 to cut; when the rotating shaft 5 is axially deviated due to vibration or tool changing and the like, if the bearing protection device 1 is not provided, the load can be directly transmitted to the first bearing 3 and the second bearing 4, so that the bearings are subjected to fatigue wear; in contrast, in the bearing protection device 1 of the present embodiment, through the small gap between the first spacer 101 and the second spacer 102, which is smaller than the play of the bearing, when a tool changing load is applied, the first spacer 101 and the second spacer 102 are in contact, and the load is transmitted to the first bearing seat 2 all the way through the rotating shaft 5, the first spacer 101 and the second spacer 102, and is then transferred to the body casing 8 for consumption.
Besides, the cooling device also comprises a cooling assembly 10 arranged at the tail end of the machine body shell 8 and a communication control system 9 arranged outside the machine body shell 8.
In this embodiment, the cooling module 10 includes a fan, and the fan sends cooling airflow into the housing 8 to perform air cooling; the communication control system 9 comprises a controller, the controller is connected with the fan, the stator 7 and the rotating shaft 5, and the controller is used for realizing the control of the cooling assembly 10, the rotation of the rotating shaft 5, tool changing and other operations.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The electric spindle and the bearing protection device provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a bearing protection device (1) for the cover is located pivot (5), the both ends of pivot (5) are installed in first bearing frame (2) through first bearing (3) and second bearing (4) respectively, its characterized in that, bearing protection device (1) are located first bearing (3) with between second bearing (4), bearing protection device (1) include first spacer (101) and cover second spacer (102) of first spacer (101), the inboard of first spacer (101) with pivot (5) contact, the outside of second spacer (102) with the inner wall contact of first bearing frame (2), first spacer (101) with second spacer (102) have the matched with non-plane between the two, have the clearance between the non-plane.
2. The bearing protection device (1) according to claim 1, wherein the non-planar surface comprises a recess for a further non-planar protrusion to snap into and a protrusion for a further non-planar recess to snap into.
3. The bearing protection device (1) according to claim 2, characterized in that the longitudinal section of the first spacer (101) and the second spacer (102) is L-shaped, the protrusion being located at the transverse end of the L-shape and the recess being located at the vertical end of the L-shape.
4. The bearing protection device (1) according to any of claims 1 to 3, characterized in that the axial clearance between the first spacer (101) and the second spacer (102), i.e. the clearance between the non-planar faces, is smaller than the play of the first bearing (3) and the second bearing (4).
5. An electric spindle, characterized in that, it comprises a machine body shell (8) and the bearing protection device (1) as claimed in any one of claims 1 to 4, a fixed stator (7) is arranged inside the machine body shell (8), a movable rotor (6) is arranged inside the stator (7), and the rotor (6) is sleeved on the rotating shaft (5).
6. Motorized spindle according to claim 5, characterized in that it further comprises a cooling assembly (10) arranged at the rear end of said machine body casing (8) and a communication control system (9) arranged outside said machine body casing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121503960.1U CN215673195U (en) | 2021-07-01 | 2021-07-01 | Electric main shaft and bearing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121503960.1U CN215673195U (en) | 2021-07-01 | 2021-07-01 | Electric main shaft and bearing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215673195U true CN215673195U (en) | 2022-01-28 |
Family
ID=79978634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121503960.1U Active CN215673195U (en) | 2021-07-01 | 2021-07-01 | Electric main shaft and bearing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215673195U (en) |
-
2021
- 2021-07-01 CN CN202121503960.1U patent/CN215673195U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101651349B1 (en) | Electric water pump | |
| CN215673195U (en) | Electric main shaft and bearing protection device | |
| WO2015040823A1 (en) | Brush-equipped motor | |
| CN210093005U (en) | Permanent magnet motor for battery car | |
| CN216721113U (en) | Mounting structure of motor with gear box | |
| CN107654655A (en) | A kind of mechanical seal with supplement heat rejecter lubricating arrangement | |
| CN211442736U (en) | Radiator of electronic equipment | |
| CN210704658U (en) | Dustproof sealing structure and electric tool | |
| CN109139469B (en) | Rotor type compressor | |
| CN218771606U (en) | Motor shaft grounding structure | |
| CN218387031U (en) | Electric machine | |
| CN213116772U (en) | Fan structure and half-moon-shaped retaining ring thereof | |
| CN204928455U (en) | Double -shaft motor pivot | |
| CN215092932U (en) | High-precision grinding wheel spindle | |
| JPWO2021130924A1 (en) | External fan fan and rotary electric machine | |
| CN211259004U (en) | Screw compressor and air conditioning unit | |
| CN212969256U (en) | Motor with prevent drunkenness structure | |
| CN210273796U (en) | Air gap adjusting device for permanent magnet of magnetic coupler | |
| CN218943071U (en) | Food processor with stable transmission | |
| CN220358976U (en) | Series motor with good heat dissipation | |
| CN213419663U (en) | Rotating shaft and motor with same | |
| CN216768295U (en) | Integral QS is trinity reduction gear for hoist | |
| CN217107511U (en) | Radiating fan combining plastic fan blades and metal fan blades | |
| CN203335662U (en) | Universal joint with long-service-life wear-resisting structure | |
| CN213919724U (en) | Flywheel mounting structure of machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240712 Address after: 312353 Economic Development Zone, Shangyu District, Shaoxing City, Zhejiang Province Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Country or region after: China Patentee after: Zhejiang Wolong Precision Power System Co.,Ltd. Address before: 312353 1801 Renmin West Road, Cao'e street, Shangyu District, Shaoxing City, Zhejiang Province Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. Country or region before: China Patentee before: SHAOXING OLI-WOLONG VIBRATION MACHINERY Co.,Ltd. |