CN207437436U - The connection structure of rotor and axis in a kind of vacuum pump - Google Patents
The connection structure of rotor and axis in a kind of vacuum pump Download PDFInfo
- Publication number
- CN207437436U CN207437436U CN201721463411.XU CN201721463411U CN207437436U CN 207437436 U CN207437436 U CN 207437436U CN 201721463411 U CN201721463411 U CN 201721463411U CN 207437436 U CN207437436 U CN 207437436U
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- CN
- China
- Prior art keywords
- rotor
- slot
- axis
- vacuum pump
- axle journal
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides the connection structure of rotor and axis in a kind of vacuum pump, belongs to mechanical vacuum equipment technical field.It solves the problems, such as generally easily to burn out rotor deformation or motor by flat key connection between rotor and axis in existing vacuum pump.The connection structure of rotor and axis in this vacuum pump, rotor and rotation axis including mutual cooperation, the axle journal for being provided centrally with being integrated with formula structure of rotor, the center of axle journal offers through hole and through hole is connected with the other end of rotor, it is offered on the end face of rotation axis between axle journal as the groove of clearance fit, and the bottom center of groove offers threaded hole, connection is screwed by fastening bolt between rotor and rotation axis, slot one is offered on the wall of axle journal, the bottom of groove offers and the corresponding slot two in one position of slot, safety pin is provided between slot one and slot two.The utility model has the advantages that security performance is more preferable.
Description
Technical field
The utility model belongs to mechanical vacuum equipment technical field, is related to a kind of vacuum pump, more particularly to a kind of vacuum pump
The connection structure of middle rotor and axis.
Background technology
Vacuum pump refers to be obtained to being evacuated by pumping container using machinery, physics, chemically or physically chemical method
The device or equipment of vacuum, for popular, vacuum pump is to improve, generate and maintain true in a certain enclosure space with various methods
Empty device.The effect of vacuum pump is exactly that gas molecule is extracted from vacuum chamber, reduces the indoor gas pressure of vacuum, is allowed to reach
To the vacuum degree of requirement.It is generally connected at present in vacuum pump between rotor and axis by flat key, therefore when vacuum pump operation one
There is stuck situation in denier, it is easy to burn out rotor deformation or motor.
The content of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, and it is more preferable to provide a kind of security performance
It can effectively prevent from running the connection structure of rotor and axis in vacuum pump that is stuck and burning out motor.
The purpose of this utility model can be realized by following technical proposal：The connection knot of rotor and axis in a kind of vacuum pump
Structure, rotor and rotation axis including mutual cooperation, which is characterized in that the rotor is provided centrally with being integrated with formula structure
Axle journal, the center of the axle journal offers through hole and through hole is connected with the other end of rotor, is opened on the end face of the rotation axis
Equipped with the groove between axle journal being clearance fit, and the bottom center of groove offers threaded hole, the rotor and rotation
Connection is screwed by fastening bolt between axis, offers slot one on the wall of the axle journal, the bottom of the groove offer with
The corresponding slot two in one position of slot, safety pin is provided between the slot one and slot two.
Its technique effect of the connection structure of rotor and axis is in this vacuum pump：It is clearance fit between rotor and rotation axis,
And connected by fastening bolt, wherein being arranged on when startup is run for safety pin can drive rotor to rotate, and when vacuum pump one
There is stuck situation in denier, and the torsion between rotor and rotation axis will make shear pin breakage, and make to be driven between rotor and rotation axis
Separation, so that empty load of motor, can effectively prevent motor and burn out, adds the security of vacuum pump.
In a kind of above-mentioned vacuum pump in the connection structure of rotor and axis, also set up between the rotor and rotation axis
There is drag ring.It can play the role of further protecting by drag ring.
Compared with prior art, the connection structure of rotor and axis makes it have peace by the design of safety pin in this vacuum pump
The advantages of performance is more preferable entirely.
Description of the drawings
Fig. 1 is the sectional view of this connection structure.
Fig. 2 makes the structure diagram of this connection structure.
In figure, 1, rotor；2nd, rotation axis；3rd, axle journal；4th, through hole；5th, groove；6th, threaded hole；7th, fastening bolt；8th, slot
One；9th, slot two；10th, safety pin；11st, drag ring.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1 and Figure 2, the connection structure of rotor and axis in this vacuum pump, rotor 1 and rotation including mutual cooperation
Axis 2, the axle journal 3 for being provided centrally with being integrated with formula structure of rotor 1, the center of axle journal 3 offer through hole 4 and through hole 4 with
The other end connection of rotor 1, offer on the end face of rotation axis 2 between axle journal 3 be clearance fit groove 5, and groove 5
Bottom center offers threaded hole 6, screws connection by fastening bolt 7 between rotor 1 and rotation axis 2, is opened up on the wall of axle journal 3
Have a slot 1, the bottom of groove 5 offer with the corresponding slot 29 in one 8 position of slot, between slot 1 and slot 29
It is provided with safety pin 10.
It further describes in detail, drag ring 11 is additionally provided between rotor 1 and rotation axis 2.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although rotor 1, rotation axis 2, axle journal 3, through hole 4, groove 5, threaded hole 6, fastening bolt is used more herein
7th, the terms such as slot 1, slot 29, safety pin 10, drag ring 11, but it does not preclude the possibility of using other terms.It uses
These terms are used for the purpose of more easily describing and explaining the essence of the utility model；It is construed as any additional
Limitation be all contrary to the spirit of the present invention.
Claims (2)
1. the connection structure of rotor and axis in a kind of vacuum pump includes the rotor of mutual cooperation（1）And rotation axis（2）, feature
It is, the rotor（1）The axle journal for being provided centrally with being integrated with formula structure（3）, the axle journal（3）Center offer
Through hole（4）And through hole（4）With rotor（1）The other end connection, the rotation axis（2）End face on offer and axle journal（3）It
Between be clearance fit groove（5）, and groove（5）Bottom center offer threaded hole（6）, the rotor（1）With rotation
Axis（2）Between pass through fastening bolt（7）Screw connection, the axle journal（3）Wall on offer slot one（8）, the groove（5）
Bottom offer and slot one（8）The corresponding slot two in position（9）, the slot one（8）With slot two（9）Between set
It is equipped with safety pin（10）.
2. the connection structure of rotor and axis in a kind of vacuum pump according to claim 1, which is characterized in that the rotor
（1）And rotation axis（2）Between be additionally provided with drag ring（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721463411.XU CN207437436U (en) | 2017-11-06 | 2017-11-06 | The connection structure of rotor and axis in a kind of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721463411.XU CN207437436U (en) | 2017-11-06 | 2017-11-06 | The connection structure of rotor and axis in a kind of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437436U true CN207437436U (en) | 2018-06-01 |
Family
ID=62291065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721463411.XU Expired - Fee Related CN207437436U (en) | 2017-11-06 | 2017-11-06 | The connection structure of rotor and axis in a kind of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437436U (en) |
-
2017
- 2017-11-06 CN CN201721463411.XU patent/CN207437436U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20191106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |