CN206889257U - Screw vacuum pump - Google Patents
Screw vacuum pump Download PDFInfo
- Publication number
- CN206889257U CN206889257U CN201720752535.3U CN201720752535U CN206889257U CN 206889257 U CN206889257 U CN 206889257U CN 201720752535 U CN201720752535 U CN 201720752535U CN 206889257 U CN206889257 U CN 206889257U
- Authority
- CN
- China
- Prior art keywords
- heat dissipation
- dissipation channel
- screw
- connecting portion
- screw rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of screw vacuum pump, screw rotor including the pump housing and installation pump body, the screw rotor includes driving screw rod and driven screw, the driving screw rod engages with driven screw, the first heat dissipation channel and the second heat dissipation channel are respectively arranged with the driving screw rod and driven screw, the inlet port and outlet for cooling medium are provided with first heat dissipation channel and the second heat dissipation channel.Directly screw rotor can be allowed to cool down by the first heat dissipation channel and the second heat dissipation channel, and then screw rod will not produce too high temperature during use, so as to make the cooling effect of whole equipment relatively good.
Description
Technical field
A kind of vavuum pump is the utility model is related to, more particularly to a kind of screw vacuum pump.
Background technology
Screw vacuum pump is to utilize two parallel constant lead screws, make in pump chamber synchronous high-speed reversely rotate and
Produce air-breathing and scavenging action.Two screw rods are handled by fine dynamic balance, by bearings, in pump case, screw rod and spiral shell
There is certain interval between bar, therefore operated steadily during pump work, between each other without the sassafras that rubs, working chamber is without working media.Therefore,
Screw vacuum pump can extract the gas containing a large amount of condensable gas and dust, be environmentally friendly, energy-saving type vacuum pump.
Notification number is that CN204239240U Chinese patent discloses a kind of variable pitch screw vacuum pump, by pump chamber
One group of screw rotor is installed to carry out rotation and form the function that vacuumizes, the thread on its screw rotor is arranged to Split type structure,
Thus allow for part replacing.In actual use, its thread is contacted with pump chamber inwall to this screw rod,
So as to being rubbed during rotation, so as to which substantial amounts of heat can be produced, and then the pump housing and screw rotor temperature are allowed
Rise, so as to easily be burnt out when equipment is run to part.
Utility model content
The purpose of this utility model is to provide a kind of screw vacuum pump, and this screw vacuum pump can allow screw rod directly to carry out
Cooling, allowing whole equipment, cooling is fast at work.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of screw vacuum pump, including the pump housing and the screw rotor for installing pump body, the screw rotor include master
Dynamic screw rod and driven screw, the driving screw rod engage with driven screw, in the driving screw rod and driven screw respectively
The first heat dissipation channel and the second heat dissipation channel are provided with, is provided with first heat dissipation channel and the second heat dissipation channel
Inlet port and outlet for cooling medium.
By using above-mentioned technical proposal, screw rotor can directly be allowed by the first heat dissipation channel and the second heat dissipation channel
Cool down, and then screw rod will not produce too high temperature during use, so as to make the radiating of whole equipment cold
But effect is relatively good.
The utility model is further arranged to：It is provided with and connects between first heat dissipation channel and the second heat dissipation channel
Pipe, cooling medium, through flowing into the second heat dissipation channel communicating pipe, are distinguished by the first heat dissipation channel on the inlet port and outlet
Connector is installed, the connector includes being used for the first connector of cooling medium the first heat dissipation channel of importing and for inciting somebody to action
Cooling medium exports the second connector of the second heat dissipation channel.
By using above-mentioned technical proposal, the setting of communicating pipe allows the first heat dissipation channel and the second heat dissipation channel to be connected
It is logical, so cooling medium only need single inlet port and single outlet just can cooling medium two screw rods are cooled down,
So as to more convenient in pipe laying.
The utility model is further arranged to：Be respectively arranged with the communicating pipe the first connecting cavity, the second connecting cavity with
And the excessive chamber connected respectively with the first connecting cavity and the second connecting cavity, first connecting cavity connect with the first heat dissipation channel,
Second connecting cavity connects with the second heat dissipation channel.
The utility model is further arranged to：The communicating pipe include first connecting portion, second connecting portion and be placed in the
The excessive portion being connected respectively between one connecting portion and second connecting portion and with first connecting portion and second connecting portion, described first
Connecting cavity, the second connecting cavity and excessive chamber are opened in first connecting portion, second connecting portion and excessive portion successively, and described
One connecting portion is set in driving screw rod, and the second connecting portion is set on driven screw, the first connecting portion and active
Sealing structure is provided between screw rod and between second connecting portion and driven screw.
By using above-mentioned technical proposal, the first connecting cavity and the second connecting cavity can dissipate with the first heat dissipation channel and second
The passage of heat is connected, and by excessive chamber, allows the first heat dissipation channel and the second heat dissipation channel to be connected.By connecting
Pipe and the sealing structure between driving screw rod and driven screw, medium will not be spilt.
The utility model is further arranged to：The sealing structure includes the limitation ring being placed in driving screw rod and opened up
Annular groove in first connecting portion, sealing ring is provided with the annular groove, the annular groove coordinates with limitation ring, the sealing ring with
Limitation ring contradicts.
By using above-mentioned technical proposal, the setting of limitation ring can allow and can be positioned when installing communicating pipe, in addition,
Limitation ring is allowed to be contradicted with sealing ring, so as to which the gap between communicating pipe and limitation ring be blocked, so as to reach sealing
Effect.
The utility model is further arranged to：Reinforcement is provided with the sealing ring.
By using above-mentioned technical proposal, the setting of reinforcement can allow sealing ring more stable in annular groove.
The utility model is further arranged to：Mounting groove is offered on the pump housing, is placed in mounting groove the communicating pipe,
The fixed block for fixing communicating pipe is provided with the mounting groove, it is upper and removable with the pump housing that the fixed block is overlapped on communicating pipe
Unload and be fixedly connected.
By using above-mentioned technical proposal, by opening up for mounting groove, facilitate the installation of communicating pipe, in addition, using fixation
The pressurization overlap joint of block, so as to which communicating pipe be fixed.
The utility model is further arranged to：First connector and the second connector are fixedly connected with the pump housing,
And first connector and the second connector sealing shroud is provided between driving screw rod and driven screw respectively.
By using above-mentioned technical proposal, the importing and export of the first connector and the second connector for cooling medium,
It is directly fixed with the pump housing, can allow cooling medium it is into and out be more convenient, and sealing shroud can allow cooling medium
It will not spill.
In summary, the utility model has the advantages that：1st, by distinguishing in driving screw rod and driven screw
First heat dissipation channel and the second heat dissipation channel are set, cooling medium can be allowed directly to be cooled down, so cool down speed ratio compared with
It hurry up；2nd, the setting of communicating pipe allows two heat dissipation channels there was only an inlet port and an outlet, so as to leading in cooling medium
Enter and export more convenient.
Brief description of the drawings
Fig. 1 is the overall structure sectional view of the present embodiment, and the first heat dissipation channel and the second heat dissipation channel are using empty in figure
Line identifies；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the enlarged drawing at I in Fig. 2；
Fig. 4 is the enlarged drawing at B in Fig. 1.
In figure：1st, driving screw rod；11st, the first heat dissipation channel；2nd, driven screw；21st, the second heat dissipation channel；3rd, the pump housing；31、
Mounting groove；32nd, fixed block；41st, the first connector；42nd, the second connector；43rd, sealing shroud；5th, communicating pipe；51st, the first connection
Portion；501st, the first connecting cavity；52nd, second connecting portion；502nd, the second connecting cavity；53rd, excessive portion；503rd, excessive chamber；6th, sealing knot
Structure；61st, limitation ring；62nd, annular groove；63rd, extension slot；64th, sealing ring；65th, reinforcement；101st, inlet port；102nd, outlet.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of screw vacuum pump, as shown in figure 1, including the screw rotor inside the pump housing 3 and the installation pump housing 3, screw rod turns
Attached bag includes driving screw rod 1 and driven screw 2, and driving screw rod 1 is engaged with driven screw 2, and driving screw rod 1 is driven by motor
It is dynamic, and allow driving screw rod 1 to allow the both ends of screw rod to occur air-breathing and the effect of exhaust respectively during being engaged with driven screw 2
Fruit, so as to reach the purpose vacuumized.During screw rod rotates, it can be rubbed with the inwall of the pump housing 3, big so as to produce
The heat of amount, and then at work, the temperature of equipment is higher, easily burns out.In order to solve the problem, driving screw rod 1 with
And the first heat dissipation channel 11 and the second heat dissipation channel 21 are respectively arranged with driven screw 2, in the first heat dissipation channel 11 and
The inlet port 101 and outlet 102 for cooling medium are provided with second heat dissipation channel 21, by cooling medium from entrance
Mouth 101 is passed through, and is discharged from outlet 102, and directly driving screw rod 1 and driven screw 2 are radiated.
As depicted in figs. 1 and 2, the entrance of cooling medium is allowed for convenience, on inlet port 101 and outlet 102 point
Connector is not installed, and allows connector to be tightly connected respectively with inlet port 101 and outlet 102, prevents from revealing, and even
Joint is rotatablely connected with driving screw rod 1 and driven screw 2.Installed between the first heat dissipation channel 11 and the second heat dissipation channel 21
There is communicating pipe 5, cooling medium is by the first heat dissipation channel 11 through flowing into the second heat dissipation channel 21 communicating pipe 5.Connector includes being used for
Cooling medium imports the first connector 41 of the first heat dissipation channel 11 and for cooling medium to be exported into the second heat dissipation channel 21
The second connector 42, so, cooling medium can enter the first heat dissipation channel 11 by the first connector 41, then by connecting
Siphunculus 5, into the second heat dissipation channel 21, finally discharged by the second connector 42.Reference picture 4, allow the first connector 41 with
And second connector 42 be fixedly connected with the pump housing 3, and the first connector 41 and the second connector 42 respectively with driving screw rod 1 with
And sealing shroud 43 is provided between driven screw 2, sealed by sealing shroud 43.
In addition, as shown in Fig. 2 in order to facilitate communicating pipe 5 is laid, mounting groove 31 is offered on the pump housing 3, by communicating pipe 5
It is placed in mounting groove 31, the fixed block 32 for fixing communicating pipe 5 is provided with mounting groove 31, passes through the company of being pressed in of fixed block 32
On siphunculus 5 and its both ends are respectively placed in the both sides of mounting groove 31, and fixed block 32 is detachably fixed with the pump housing 3 and is connected（Directly
Connect and fixed using bolt）.Communicating pipe 5 include first connecting portion 51, second connecting portion 52 and be placed in first connecting portion 51 and the
The excessive portion 53 being connected respectively between two connecting portions 52 and with first connecting portion 51 and second connecting portion 52, in first connecting portion
51st, the first connecting cavity 501, the second connecting cavity 502 and excessive chamber are opened up successively in second connecting portion 52 and excessive portion 53
503.First connecting portion 51 is allowed to be set in driving screw rod 1, second connecting portion 52 is set on driven screw 2, so as to allow first
Heat dissipation channel 11, the first connecting cavity 501, excessive chamber 503, the second connecting cavity 502 and the second heat dissipation channel 21 connect.
As shown in Figures 2 and 3, in order to which heat eliminating medium will not be spilt, between first connecting portion 51 and driving screw rod 1 with
And sealing structure 6 is provided between second connecting portion 52 and driven screw 2.Wherein, sealing structure 6 includes being placed in driving screw rod
1（Driven screw 2 is identical with the structure of driving screw rod 1）On limitation ring 61 and the annular groove 62 that is opened in first connecting portion 51,
Extension slot 63 is set in annular groove 62, allows its depth to be more than the depth of annular groove 62, sealing can be directly provided with extension slot 63
Circle 64, while, allow annular groove 62 to coordinate with limitation ring 61, sealing ring 64 and limitation ring 61 are contradicted, in such manner, it is possible to allow sealing
Circle 64 blocks the gap between annular groove 62 and limitation ring 61, reaches the purpose of sealing.In order to allow sealing ring 64 in extension slot 63
It is more stable, reinforcement 65 is provided with sealing ring 64, reinforcement 65 is formed using wire, can use steel wire.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of screw vacuum pump, including the pump housing（3）And the installation pump housing（3）Internal screw rotor, the screw rotor bag
Include driving screw rod（1）And driven screw（2）, the driving screw rod（1）With driven screw（2）Engagement, it is characterized in that：The master
Dynamic screw rod（1）And driven screw（2）On be respectively arranged with the first heat dissipation channel（11）And second heat dissipation channel（21）, it is described
First heat dissipation channel（11）And second heat dissipation channel（21）On be provided with inlet port for cooling medium（101）And row
Outlet（102）.
2. screw vacuum pump according to claim 1, it is characterized in that：First heat dissipation channel（11）It is logical with the second radiating
Road（21）Between communicating pipe is installed（5）, cooling medium is by the first heat dissipation channel（11）Through communicating pipe（5）It is logical to flow into the second radiating
Road（21）, the inlet port（101）And outlet（102）On be separately installed with connector, the connector includes being used for cold
But medium imports the first heat dissipation channel（11）The first connector（41）And for cooling medium to be exported into the second heat dissipation channel
（21）The second connector（42）.
3. screw vacuum pump according to claim 2, it is characterized in that：The communicating pipe（5）On be respectively arranged with the first company
Connect chamber（501）, the second connecting cavity（502）And respectively with the first connecting cavity（501）With the second connecting cavity（502）What is connected is excessive
Chamber（503）, first connecting cavity（501）With the first heat dissipation channel（11）Connection, second connecting cavity（502）Dissipated with second
The passage of heat（21）Connection.
4. screw vacuum pump according to claim 3, it is characterized in that：The communicating pipe（5）Including first connecting portion（51）、
Second connecting portion（52）And it is placed in first connecting portion（51）With second connecting portion（52）Between and respectively with first connecting portion
（51）And second connecting portion（52）The excessive portion of connection（53）, first connecting cavity（501）, the second connecting cavity（502）With
And excessive chamber（503）First connecting portion is opened in successively（51）, second connecting portion（52）And excessive portion（53）On, described first
Connecting portion（51）It is set in driving screw rod（1）On, the second connecting portion（52）It is set in driven screw（2）On, described first
Connecting portion（51）With driving screw rod（1）Between and second connecting portion（52）With driven screw（2）Between be provided with sealing knot
Structure（6）.
5. screw vacuum pump according to claim 4, it is characterized in that：The sealing structure（6）Including being placed in driving screw rod
（1）On limitation ring（61）And it is opened in first connecting portion（51）On annular groove（62）, the annular groove（62）Inside it is provided with close
Seal（64）, the annular groove（62）With limitation ring（61）Coordinate, the sealing ring（64）With limitation ring（61）Contradict.
6. screw vacuum pump according to claim 5, it is characterized in that：The sealing ring（64）Inside it is provided with reinforcement
（65）.
7. screw vacuum pump according to claim 3, it is characterized in that：The pump housing（3）On offer mounting groove（31）, institute
State communicating pipe（5）It is placed in mounting groove（31）It is interior, the mounting groove（31）Inside it is provided with for fixing communicating pipe（5）Fixed block
（32）, the fixed block（32）It is overlapped on communicating pipe（5）The upper and and pump housing（3）It is detachably fixed connection.
8. screw vacuum pump according to claim 2, it is characterized in that：First connector（41）And second connector
（42）And the pump housing（3）It is fixedly connected, and the first connector（41）With the second connector（42）Respectively with driving screw rod（1）And
Driven screw（2）Between be provided with sealing shroud（43）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720752535.3U CN206889257U (en) | 2017-06-26 | 2017-06-26 | Screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720752535.3U CN206889257U (en) | 2017-06-26 | 2017-06-26 | Screw vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889257U true CN206889257U (en) | 2018-01-16 |
Family
ID=61317000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720752535.3U Expired - Fee Related CN206889257U (en) | 2017-06-26 | 2017-06-26 | Screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677663A (en) * | 2020-06-23 | 2020-09-18 | 朱克龙 | High-pressure efficient vacuum energy-saving pump |
-
2017
- 2017-06-26 CN CN201720752535.3U patent/CN206889257U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677663A (en) * | 2020-06-23 | 2020-09-18 | 朱克龙 | High-pressure efficient vacuum energy-saving pump |
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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: 20180116 Termination date: 20200626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |