CN206159010U - Cam rotor pump - Google Patents
Cam rotor pump Download PDFInfo
- Publication number
- CN206159010U CN206159010U CN201621100335.1U CN201621100335U CN206159010U CN 206159010 U CN206159010 U CN 206159010U CN 201621100335 U CN201621100335 U CN 201621100335U CN 206159010 U CN206159010 U CN 206159010U
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- CN
- China
- Prior art keywords
- pump
- cam
- driven shaft
- driving shaft
- shaft
- 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.)
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Abstract
Cam rotor pump belongs to the positive -displacement pump field. The utility model discloses a pump body, driving shaft, driven shaft, gearbox casing and speed reduction box, gearbox casing's both ends form respectively with pump body complex installation face and with speed reduction box complex installation face, the pump body and speed reduction box are installed respectively in gearbox casing's both ends face, driving shaft and driven shaft pass the pump body, gearbox casing and speed reduction box and support through the bearing, the support mounted position of bearing sets up respectively gearbox casing and speed reduction box on, connect through the gear drive who sets up at gearbox casing between driving shaft and the driven shaft, driving shaft and driven shaft overlap respectively and be equipped with the cam, the cam lies in the annular groove that forms of the pump body in, both ends form the import and the export of medium respectively around the pump body, the driving shaft in the pump body and the both ends of driven shaft are respectively through outer mechanical seal and the encapsulation of interior mechanical seal.
Description
Technical field
The utility model belongs to positive displacement pump field, especially relevant with a kind of lobed rotor pump.
Background technology
Lobed rotor pump is a kind of positive displacement pump of rotation, and the property with positive discharge capacity, flow does not become with economy
Change, the volume of work is changed by the relative motion between rotor and the pump housing.Patent publication No. is that the A of CN 104675695 are public
Open a kind of lobed rotor pump, including pump cover, the pump housing, driving shaft, driven shaft, gear, cam, bearing, bearing housing, machinery are close
Envelope and closure, are provided with driving shaft and driven shaft in bearing housing, the pump housing is fixedly mounted on bearing housing, described active
The drive end that two bearings, driving shaft and driven shaft are mounted on axle and driven shaft is mounted on gear, and the two passes through gear
Be connected, the anti-drive end of driving shaft and driven shaft is mounted on cam, pump cover is arranged on the pump housing, described driven shaft and
Mechanical seal is cased with driving shaft, mechanical seal is arranged in closure, the cam on cam and driven shaft on driving shaft
Conjugate cam each other.But the cam follower pump mechanical sealing is arranged on the circumference of axle, its leakproof seal effect is poor, and medium oozes
Axle is easily corroded thoroughly, and its pump cover for arranging is less to the position-limiting action of driving shaft and driven shaft, causes cam in axial position
Move, therefore applicant makes improvements.
Utility model content
For the shortcoming that sealing effectiveness is poor, position-limiting action is poor that existing lobed rotor pump is present, the utility model
Aim to provide a kind of good sealing effect and the lobed rotor pump with position-limiting action.
For this purpose, the utility model is employed the following technical solutions：Lobed rotor pump, is characterized in that, including the pump housing, driving shaft,
Driven shaft, gear housing and deceleration box, the two ends of described gear housing form respectively the installation coordinated with the described pump housing
Face and the mounting surface coordinated with described deceleration box, the pump housing and deceleration box are respectively arranged in the both ends of the surface of gear housing；Institute
The driving shaft stated and driven shaft are through the pump housing, gear housing and deceleration box and by bearings, the support installation position of bearing
Put and be separately positioned on described gear housing and deceleration box, by being arranged on gear housing between driving shaft and driven shaft
Gear drive connects, and described driving shaft and driven shaft is respectively installed with cam, and cam is located at the annular that the described pump housing is formed
In groove, the rear and front end of the pump housing forms respectively the inlet and outlet of medium, and two of the driving shaft and driven shaft in the pump housing
End is encapsulated respectively by outer mechanical seal and interior mechanical seal, and the driving shaft and driven shaft near interior mechanical seal is by described
Interior limit shaft sleeve is spacing, and interior limit shaft sleeve is fixed by described gear housing with the gear box end cover for being fixed on gear housing；
The outer mechanical seal described in two groups being arranged on driving shaft and driven shaft is fixed by pump cover, and pump cover lid is loaded on the described pump housing
The end face of outer end, the outer end of pump cover is fixed by pump cover end axle bed, and pump cover end axle bed is provided with annular groove, and annular groove is embedded
Outer limit shaft sleeve is equipped with, two outer limit shaft sleeves are fixed respectively by pressing plate, the outside of two pressing plates of correspondence passes through respectively two
Gland is fixed with described pump cover end axle bed；The afterbody of described deceleration box forms the installation position for installing tooth axle, and tooth axle passes through
Bearings are installed and overhang out described deceleration box, and described driving shaft has beyond the part of described driven shaft length
And it is parallel with described tooth axle, connected with described tooth axle transmission by reduction gearing beyond the part of described driven shaft length
Connect.
Used as the supplement to above-mentioned technical proposal and perfect, the utility model also includes following technical characteristic.
The cam on cam and driven shaft on driving shaft is three wings cam, and the outline line of cam passes through smooth circular sliding slopes
Form, two cams conjugate cam each other.
The both sides of the cam described in two are reclined respectively by two integrally formed wearing plates.
Described cam passes through full rubber coated.
Following beneficial effect can be reached using the utility model：The utility model is by the two ends difference in two groups of cams
Mechanical seal is set, so as to improve the sealing of lobed rotor pump, so as to prevent medium from penetrating into main shaft is entered, improve cam and turn
The service life of sub- pump.The utility model by mechanical seal, inside and outside back-up ring it is spacing, outer back-up ring pass through pump cover fit structure reality
Show to the spacing of cam, so as to improve the precision of lobed rotor pump pumped (conveying) medium.The utility model is carried out to existing pump cover
Improve, because existing cam is spiral rotating, cam has axial force, by the attachment structure of pump cover, it is possible to achieve right
The spacing fixation of cam.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model includes the pump housing 1, driving shaft 4, driven shaft 5, gear housing 2 and deceleration box 3, tooth
The two ends of wheel casing 2 form respectively the mounting surface coordinated with the pump housing 1 and the mounting surface coordinated with deceleration box 3, the pump housing 1 and deceleration
Casing 3 is respectively arranged in the both ends of the surface of gear housing 2；Driving shaft 4 and driven shaft 5 pass through the pump housing 1, gear housing 2 and reduction box
Body 3 simultaneously passes through bearings, and the support installation site of bearing is separately positioned on gear housing 2 and deceleration box 3, driving shaft 4
Connected by being arranged on the gear drive of gear housing 2 and driven shaft 5 between, driving shaft 4 and driven shaft 5 are respectively installed with cam
6, cam 6 is located in the annular groove that the pump housing 1 is formed, and the rear and front end of the pump housing 1 forms respectively the inlet and outlet of medium, described
The two ends of driving shaft 4 and driven shaft 5 in the pump housing 1 are encapsulated respectively by outer mechanical seal 8 and interior mechanical seal 7, near interior machine
The driving shaft 4 and driven shaft 5 of tool sealing 7 is spacing by interior limit shaft sleeve 9, and interior limit shaft sleeve 9 is by gear housing 2 and is fixed on
The gear box end cover 11 of gear housing 2 is fixed；Two groups of outer mechanical seals 8 being arranged on driving shaft 4 and driven shaft 5 pass through pump cover
12 fix, and end face of the lid loaded on the outer end of the pump housing 1 of pump cover 12, the outer end of pump cover 12 is fixed by pump cover end axle bed 13, pump cover end axle
Seat 13 is provided with annular groove, and outer limit shaft sleeve 10 is equipped with annular groove, and two outer limit shaft sleeves 10 pass through respectively pressing plate
16 fix, and the outside of two pressing plates 16 of correspondence is fixed respectively by two glands 14 with pump cover end axle bed 13；The tail of deceleration box 3
Portion forms the installation position for installing tooth axle 15, and tooth axle 15 is installed and overhang out deceleration box 3 by bearings, and driving shaft 4 has
It is beyond the part of the length of driven shaft 5 and parallel with tooth axle 15, beyond the part of the length of driven shaft 5 by reduction gearing and tooth axle 15
It is connected.
Further, the cam on the cam and driven shaft 5 on driving shaft 4 is three wings cam, and the outline line of cam 6 passes through
Smooth circular sliding slopes are formed, and two cams 6 conjugate cam each other, the both sides of two cams 6 are integrally formed by two respectively
Wearing plate reclines.Cam 6 passes through full rubber coated.
Claims (4)
1. lobed rotor pump, it is characterised in that：Described lobed rotor pump includes the pump housing（1）, driving shaft（4）, driven shaft（5）、
Gear housing（2）And deceleration box（3）, described gear housing（2）Two ends formed respectively and the described pump housing（1）Coordinate
Mounting surface and with described deceleration box（3）The mounting surface of cooperation, the pump housing（1）And deceleration box（3）It is respectively arranged in gear-box
Body（2）Both ends of the surface；Described driving shaft（4）And driven shaft（5）Through the pump housing（1）, gear housing（2）And deceleration box（3）
And by bearings, the support installation site of bearing is separately positioned on described gear housing（2）And deceleration box（3）On,
Driving shaft（4）And driven shaft（5）Between by being arranged on gear housing（2）Gear drive connection, described driving shaft（4）With
Driven shaft（5）It is respectively installed with cam（6）, cam（6）Positioned at the described pump housing（1）In the annular groove of formation, the pump housing（1）'s
Rear and front end forms respectively the inlet and outlet of medium, the pump housing（1）In driving shaft（4）And driven shaft（5）Two ends point
Not by outer mechanical seal（8）With interior mechanical seal（7）Encapsulation, near interior mechanical seal（7）Driving shaft（4）And driven shaft
（5）By described interior limit shaft sleeve（9）It is spacing, interior limit shaft sleeve（9）By described gear housing（2）Be fixed on gear
Casing（2）Gear box end cover（11）It is fixed；It is arranged on driving shaft（4）And driven shaft（5）On two groups described in outer machinery it is close
Envelope（8）By pump cover（12）It is fixed, pump cover（12）Lid is loaded on the described pump housing（1）The end face of outer end, pump cover（12）Outer end lead to
Cross pump cover end axle bed（13）It is fixed, pump cover end axle bed（13）Annular groove is provided with, outer limit shaft sleeve is equipped with annular groove
（10）, two outer limit shaft sleeves（10）Pass through pressing plate respectively（16）It is fixed, two pressing plates of correspondence（16）Outside respectively pass through two
Individual gland（14）With described pump cover end axle bed（13）It is fixed；Described deceleration box（3）Afterbody formed install tooth axle（15）
Installation position, tooth axle（15）Deceleration box described in being installed by bearings and being overhang out（3）, described driving shaft（4）Tool
Have beyond described driven shaft（5）The part of length and with described tooth axle（15）It is parallel, beyond described driven shaft（5）Length
Part by reduction gearing and described tooth axle（15）It is connected.
2. lobed rotor pump according to claim 1, it is characterised in that：Driving shaft（4）On cam and driven shaft（5）On
Cam be three wings cam, cam（6）Outline line formed by smooth circular sliding slopes, two cams（6）Conjugate cam each other.
3. lobed rotor pump according to claim 2, it is characterised in that：Cam described in two（6）Both sides lead to respectively
Cross two integrally formed wearing plates to recline.
4. lobed rotor pump according to claim 3, it is characterised in that：Described cam（6）By full rubber coated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621100335.1U CN206159010U (en) | 2016-09-30 | 2016-09-30 | Cam rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621100335.1U CN206159010U (en) | 2016-09-30 | 2016-09-30 | Cam rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159010U true CN206159010U (en) | 2017-05-10 |
Family
ID=58653673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621100335.1U Active CN206159010U (en) | 2016-09-30 | 2016-09-30 | Cam rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997897A (en) * | 2020-09-25 | 2020-11-27 | 兰州理工大学 | Cam type gas circulating pump for fuel cell |
-
2016
- 2016-09-30 CN CN201621100335.1U patent/CN206159010U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997897A (en) * | 2020-09-25 | 2020-11-27 | 兰州理工大学 | Cam type gas circulating pump for fuel cell |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |