CN209370056U - A kind of in line lobe pump of ventilation type - Google Patents
A kind of in line lobe pump of ventilation type Download PDFInfo
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- CN209370056U CN209370056U CN201822274502.XU CN201822274502U CN209370056U CN 209370056 U CN209370056 U CN 209370056U CN 201822274502 U CN201822274502 U CN 201822274502U CN 209370056 U CN209370056 U CN 209370056U
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- lobe pump
- side cover
- end cap
- armature spindle
- ventilation type
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Abstract
The utility model provides a kind of in line lobe pump of ventilation type, belongs to Roots's pump technical field.It solves the problems, such as that the installation of lobe pump is inconvenient.The in line lobe pump of this ventilation type, including shell, intermeshing two rotors are equipped in shell, it further include the armature spindle being arranged in a one-to-one correspondence with rotor on this lobe pump, rotor is set on corresponding armature spindle, locating slot is offered on shell, the side cover that can be set in there are two being set on this lobe pump on armature spindle, the both ends of rotor are arranged in side cover, the positioning ring that can be embedded in locating slot is convexed to form on side cover, two end caps being set on armature spindle are additionally provided on this lobe pump, end cap is arranged in the separate both ends of side cover, end cap and side cover and is connected by bolt.The in line lobe pump of this ventilation type can improve the installation effectiveness of lobe pump.
Description
Technical field
The utility model belongs to Roots's pump technical field, is related to a kind of in line lobe pump of ventilation type.
Background technique
Lobe pump, which refers to, pumps the built-in lobed rotor there are two opposite direction synchronous rotary, between rotor, in rotor and pump case
There is slight gap between wall and a kind of non-touching positive displacement vacuum pump.
During the installation process, key is as guaranteed between two high-speed rotating rotors and stator case to lobe pump
Minim gap, and can quickly, repeat, stablize, is reliable fixed, existing fixed form need using positioning tool to side cover and
Installation between shell is pre-positioned, then will be attached between side cover and shell by staff using positioning pin, this
The function operation amount of kind installation positioning method is larger, and during reuse, can generate position deviation, affect lobe pump
Maintenance efficiency and installation effectiveness, and manual operation will affect the precision and stability of positioning, to affect the performance of lobe pump.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of in line Roots of ventilation type
Pump, technical problem to be solved in the utility model is how to improve the installation effectiveness of lobe pump.
The purpose of this utility model can be realized by the following technical scheme:
A kind of in line lobe pump of ventilation type, including shell, the shell is interior to be equipped with intermeshing two rotors, this Roots
It further include the armature spindle being arranged in a one-to-one correspondence with rotor on pump, the rotor is set on corresponding armature spindle, which is characterized in that
Locating slot is offered on the shell, is set on this lobe pump there are two the side cover that can be set on armature spindle, the side cover is arranged
The positioning ring that can be embedded in locating slot is convexed to form on the both ends of rotor, the side cover, and two sets are additionally provided on this lobe pump
The end cap being located on armature spindle, the end cap are arranged in the separate both ends of side cover, the end cap and side cover and are connected by bolt.
Working principle: during the installation process, rotor is set on armature spindle for lobe pump, and side is also arranged on armature spindle
Lid has positioning ring on side plate, therefore side plate only needs positioning ring being embedded into locating slot due to offering locating slot on shell
It is interior, using the connection type of no positioning pin, so that the accurate positioning between side plate and shell, ensure that the accurate of positioning
It spends, is arranged with end cap on armature spindle, by the way that side cover and end cap are connected, the installation and fixation to lobe pump is realized, so that side
Disassembly enhanced convenience between lid and shell, and be connected by the bolt of end cap and side cover, increase the firm of side cover connection
Property, further improve the installation effectiveness of lobe pump.
In the above-mentioned in line lobe pump of ventilation type, sealing shroud is arranged on the armature spindle, the sealing is set on
Between side cover and armature spindle.
The setting of the structure increases the sealing effect between side cover and armature spindle, so that the gas of rotor sucking will not
It is pumped between side cover and end cap, improves lobe pump reliability of operation and service life.
In the above-mentioned in line lobe pump of ventilation type, this lobe pump is equipped with bearing block, the axis between end cap and side cover
Holding has stop collar on seat, offer limiting slot on the side cover, the stop collar can be embedded in limiting slot, the end cap, side
Lid and bearing block are connected by bolt.
The setting of the structure, strengthens the connection between end cap and side cover, and the setting of bearing block also increase side cover with
Hermetic seal between end cap reduces the medium sucked in the pump housing and enters between end cap and side cover, further makes entire
The stability of lobe pump is higher, and service life can be longer, also improves the installation effectiveness of lobe pump.
In the above-mentioned in line lobe pump of ventilation type, axle sleeve one and bearing are arranged on the armature spindle, this lobe pump exists
It is equipped with dry-type encapsulated ring one between axle sleeve one and bearing block, the bearing installation for bearing insertion is offered on the bearing block
Slot, the bearing block can lean with end cap.
The setting of bearing reduces the frictional force between armature spindle and end cap；And matched using dry-type encapsulated ring one with bearing
It closes, realizes compound axle envelope, the medium of the medium and end cover lumen that ensure that pump housing inner cavity is mutually impermeable, and it is mutual to reduce medium
Infiltration, improves the operational reliability and service life of the pump housing.
In the above-mentioned in line lobe pump of ventilation type, there is cooling water cavity, the side cover between the bearing block and side cover
On be also provided with the drainage hole being connected to cooling water cavity, the cooling water cavity and bearing of side cover can be arranged in the dry-type encapsulated ring one
Between.
The setting of the structure is able to achieve and carries out certain cooling to armature spindle, drainage hole is arranged, so that entire cooling water cavity
Interior cooling water energy is timely replaced, and dry-type encapsulated ring one is arranged between cooling water cavity and bearing, ensure that cooling water
Intracavitary cooling water can not be flowed into end cap by bearing, reduce interpenetrating for medium, improve making for lobe pump
Use the service life.
In the above-mentioned in line lobe pump of ventilation type, lubricant reservoir is offered in the end cap, is additionally provided in the end cap
Disc, the disc are set on armature spindle, and the nut being set on armature spindle is equipped between the disc and bearing,
The disc of one of end cap is equipped with synchromesh gear, is equipped with the oil baffle and axis being set on armature spindle in another end cap
Set two, the oil baffle leans with disc, several dry-type encapsulated rings two, the dry type are also arranged on the axle sleeve two
Sealing ring two can lean with the cavity wall of lubricant reservoir.
The setting of the structure, so that the connection of disc is more firm, the setting of dry-type encapsulated ring two ensure that lubrication
The oil liquid of oil pocket can be stable be lubricated, without flowing in side cover, ensure that and entirely pump intracorporal working environment more
It is clean, and the setting of end cap is more convenient, convenient, further improves the installation effectiveness of the pump housing.
In the above-mentioned in line lobe pump of ventilation type, one of them end cap for being equipped with synchromesh gear is equipped with view oil mirror.
The setting of the structure, the case where capable of observing lubricant reservoir inner fluid, can fill in time when in order to lubricating oil missing
Into in lubricant reservoir, the use of the pump housing is facilitated.
In the above-mentioned in line lobe pump of ventilation type, the rotor is three lobe rotor.
Using three lobe rotor, the stationarity of exhaust can be increased, reduce air-flow impulsive noise, while suction section is respectively divided
From increase gas tightness reduces regurgitation volume, improves pumping efficiency.
Compared with prior art, the in line lobe pump of this ventilation type has the advantage that: side plate only needs for positioning ring to be embedded into
In locating slot, using the connection type of no positioning pin, so that the accurate positioning between side plate and shell, ensure that positioning
Precision so that the disassembly enhanced convenience between side cover and shell, by the way that side cover and end cap are connected, and by end cap with
The bolt of side cover is connected, and further improves the installation effectiveness of lobe pump.
Detailed description of the invention
Fig. 1 is the in line lobe pump of this ventilation type along axial cross-sectional view.
Fig. 2 is the cross-sectional view of the in line lobe pump of this ventilation type radially.
Fig. 3 is the partial enlarged view in Fig. 1 at A.
In figure, 1, shell；11, rotor；12, locating slot；2, armature spindle；21, sealing shroud；22, axle sleeve one；23, bearing；3,
Side cover；31, positioning ring；32, limiting slot；33, cooling water cavity；34, drainage hole；4, end cap；41, lubricant reservoir；42, disc；
43, nut；44, synchromesh gear；45, oil baffle；46, axle sleeve two；47, dry-type encapsulated ring two；5, bolt；6, bearing block；61, it limits
Position ring；62, bearing mounting groove；63, dry-type encapsulated ring one；7, oil mirror is regarded.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, the in line lobe pump of this ventilation type, including shell 1, shell 1 is interior to be equipped with intermeshing two rotors
11, it further include the armature spindle 2 being arranged in a one-to-one correspondence with rotor 11 on this lobe pump, rotor 11 is set on corresponding armature spindle 2.
Specifically, it as shown in Figure 1-3, offering locating slot 12 on shell 1, is set on this lobe pump there are two can be set in
The both ends of rotor 11 are arranged in side cover 3 on armature spindle 2, side cover 3, convex to form to be embedded in locating slot 12 on side cover 3 and determine
Position ring 31, is additionally provided with two end caps being set on armature spindle 24 on this lobe pump, and the separate both ends of side cover 3 are arranged in end cap 4,
End cap 4 and side cover 3 are connected by bolt 5.
Working principle: during the installation process, rotor 11 is set on armature spindle 2 for lobe pump, is also arranged on armature spindle 2
Side cover 3 has a positioning ring 31 due to offering locating slot 12 on shell 1 on side plate, thus side plate only need positioning ring 31 is embedding
Enter into locating slot 12, using the connection type of no positioning pin, so that the accurate positioning between side plate and shell 1, is protected
The precision of positioning has been demonstrate,proved, end cap 4 has been arranged on armature spindle 2, by the way that side cover 3 and end cap 4 are connected, realizes to lobe pump
It installs and fixed, so that the disassembly enhanced convenience between side cover 3 and shell 1, and it is solid by the bolt 5 of end cap 4 and side cover 3
Even, the stability for increasing the connection of side cover 3, further improves the installation effectiveness of lobe pump.
As shown in Figure 1, being arranged with sealing shroud 21 on armature spindle 2, sealing shroud 21 is arranged between side cover 3 and armature spindle 2.
As shown in Fig. 1 or Fig. 3, this lobe pump is equipped with bearing block 6 between end cap 4 and side cover 3, has limit on bearing block 6
Position ring 61, offers limiting slot 32 on side cover 3, and stop collar 61 can be embedded in limiting slot 32, and end cap 4, side cover 3 and bearing block 6 are logical
Bolt 5 is crossed to be connected.
As shown in Fig. 1 or Fig. 3, axle sleeve 1 and bearing 23 are arranged on armature spindle 2, this lobe pump is in axle sleeve 1 and axis
It holds and is equipped with dry-type encapsulated ring 1 between seat 6, the bearing mounting groove 62 being embedded in for bearing 23, bearing are offered on bearing block 6
Seat 6 can lean with end cap 4.
As shown in figure 3, have cooling water cavity 33 between bearing block 6 and side cover 3, it is also provided on side cover 3 and cooling water cavity
The drainage hole 34 of 33 connections, dry-type encapsulated ring 1 can be arranged between the cooling water cavity 33 of side cover 3 and bearing 23.
As shown in figure 3, offering lubricant reservoir 41 in end cap 4, disc 42 is additionally provided in end cap 4, disc 42 is arranged
On armature spindle 2, the nut 43 being set on armature spindle 2 is equipped between disc 42 and bearing 23, one of end cap 4 is got rid of
Food tray 42 is equipped with synchromesh gear 44, is equipped with the oil baffle 45 and axle sleeve 2 46 being set on armature spindle 2 in another end cap 4,
Oil baffle 45 leans with disc 42, several dry-type encapsulated rings 2 47, dry-type encapsulated ring two are also arranged on axle sleeve 2 46
47 can lean with the cavity wall of lubricant reservoir 41.
As shown in Figure 1, one of them end cap 4 for being equipped with synchromesh gear 44 is equipped with view oil mirror 7.
As shown in Fig. 2, rotor 11 is three lobe rotor 11.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (8)
1. a kind of in line lobe pump of ventilation type, including shell (1), the shell (1) is interior to be equipped with intermeshing two rotors
It (11), further include the armature spindle (2) being arranged in a one-to-one correspondence with rotor (11) on this lobe pump, the rotor (11) is set in accordingly
Armature spindle (2) on, which is characterized in that offer locating slot (12), set on this lobe pump there are two can cover on the shell (1)
Convex shaped is arranged on the both ends of rotor (11), the side cover (3) in the side cover (3) being located on armature spindle (2), the side cover (3)
At the positioning ring (31) that can be embedded in locating slot (12), two end caps being set on armature spindle (2) are additionally provided on this lobe pump
(4), the both ends separate in side cover (3) are arranged in the end cap (4), and the end cap (4) and side cover (3) are connected by bolt (5).
2. the in line lobe pump of ventilation type according to claim 1, which is characterized in that be arranged on the armature spindle (2) close
Big envelope (21), the sealing shroud (21) are arranged between side cover (3) and armature spindle (2).
3. the in line lobe pump of ventilation type according to claim 1 or 2, which is characterized in that this lobe pump is in end cap (4) and side
It covers between (3) and is equipped with bearing block (6), there are stop collar (61) on the bearing block (6), offer limit on the side cover (3)
Slot (32), the stop collar (61) can be embedded in limiting slot (32), and the end cap (4), side cover (3) and bearing block (6) pass through spiral shell
Bolt (5) is connected.
4. the in line lobe pump of ventilation type according to claim 3, which is characterized in that be arranged with axis on the armature spindle (2)
One (22) and bearing (23) are covered, this lobe pump is equipped with dry-type encapsulated ring one (63), institute between axle sleeve one (22) and bearing block (6)
The bearing mounting groove (62) offered on bearing block (6) for bearing (23) insertion is stated, the bearing block (6) can be with end cap (4)
It leans.
5. the in line lobe pump of ventilation type according to claim 4, which is characterized in that the bearing block (6) and side cover (3) it
Between there are cooling water cavity (33), the drainage hole (34) being connected to cooling water cavity (33) is also provided on the side cover (3), it is described to do
Formula sealing ring one (63) can be arranged between the cooling water cavity (33) and bearing (23) of side cover (3).
6. the in line lobe pump of ventilation type according to claim 1 or 2, which is characterized in that offer profit in the end cap (4)
Lubricating cavity (41), the end cap (4) is interior to be additionally provided with disc (42), and the disc (42) is set on armature spindle (2), described
The nut (43) being set on armature spindle (2) is equipped between disc (42) and bearing (23), one of end cap (4) gets rid of oil
Disk (42) is equipped with synchromesh gear (44), and oil baffle (45) and the axis being set on armature spindle (2) are equipped in another end cap (4)
Two (46) are covered, the oil baffle (45) leans with disc (42), is also arranged with several dry types on the axle sleeve two (46)
Sealing ring two (47), the dry-type encapsulated ring two (47) can lean with the cavity wall of lubricant reservoir (41).
7. the in line lobe pump of ventilation type according to claim 6, which is characterized in that one of them is equipped with synchromesh gear (44)
End cap (4) be equipped with view oil mirror (7).
8. the in line lobe pump of ventilation type according to claim 1 or 2, which is characterized in that the rotor (11) turns for three leaves
Sub (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274502.XU CN209370056U (en) | 2018-12-31 | 2018-12-31 | A kind of in line lobe pump of ventilation type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274502.XU CN209370056U (en) | 2018-12-31 | 2018-12-31 | A kind of in line lobe pump of ventilation type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370056U true CN209370056U (en) | 2019-09-10 |
Family
ID=67828842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822274502.XU Active CN209370056U (en) | 2018-12-31 | 2018-12-31 | A kind of in line lobe pump of ventilation type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704465A (en) * | 2022-04-11 | 2022-07-05 | 浙江创为真空设备股份有限公司 | Pre-pumping structure of Roots vacuum pump |
-
2018
- 2018-12-31 CN CN201822274502.XU patent/CN209370056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704465A (en) * | 2022-04-11 | 2022-07-05 | 浙江创为真空设备股份有限公司 | Pre-pumping structure of Roots vacuum pump |
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