CN209340140U - A kind of double-suction double screw pump with sliding bearing - Google Patents
A kind of double-suction double screw pump with sliding bearing Download PDFInfo
- Publication number
- CN209340140U CN209340140U CN201822112139.1U CN201822112139U CN209340140U CN 209340140 U CN209340140 U CN 209340140U CN 201822112139 U CN201822112139 U CN 201822112139U CN 209340140 U CN209340140 U CN 209340140U
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- Prior art keywords
- bearing
- axis
- main shaft
- double
- gear
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of double-suction double screw pumps with sliding bearing, including the pump housing, gear-box, gear, main shaft, from axis, sliding bearing, screw-casing, bearing block, machine seals seat, front cover, bearing, round nut, mechanical seal, main shaft and 2 screw-casings are respectively provided with from axis, machine envelope seat and bearing are arranged in the inner hole of bearing block, bearing block seals seat positioning by machine and is fixed on pump housing right end, mechanical seal is arranged in the left end of machine envelope seat and cooperates with main shaft and from axis, main shaft and pass through bearing from axis, round nut is fixed in bearing block, front cover is arranged in bearing block right end, sliding bearing is arranged in the left end of the pump housing and cooperates with main shaft and from axis, main shaft and the left end from axis is arranged in gear, gear-box is arranged in pump housing left end, it is short with axial dimension, structure is simple, it dismounts easy to maintain, the good feature of sealing effect.
Description
Technical field
The utility model relates to screw pump technology field, especially a kind of double-suction double screw pump with sliding bearing.
Background technique
Quimby pump is that a kind of be intermeshed by intracorporal two screw rods of pump is formed by volume variation to convey liquid
Or it is allowed to the positive displacement pump being pressurized, it is widely used in the fields such as petroleum, chemical industry, lubricating oil conveying.The structure of double-suction double screw pump is joined
See attached drawing 1, it mainly seals seat 2, bearing 3, driving screw 4, sub-screw 5, front support seat 6, the pump housing 7, spiral by mechanical seal 1, machine
Set 8, rear support 9, gear 10, gear-box 11 form.In the prior art since driving screw 4 and 5 both ends of sub-screw are equipped with
Mechanical seal 1 and bearing 3, and mechanical seal 1 and bearing 3 are more demanding to fitted position, thus dismounting maintenance process often needs
It takes a long time and assembly precision is also not easy to guarantee；4 are equipped with additionally, due to the both ends of driving screw 4 and sub-screw 5
Mechanical seal is covered, more leakage probability that mechanical seal uses are bigger.
Utility model content
The purpose of this utility model is to propose that a kind of structure is simple for the deficiencies in the prior art, dismounting maintenance
It is convenient, the good double-suction double screw pump with sliding bearing of sealing effect.
The technical solution of the utility model is achieved in that a kind of double-suction double screw pump with sliding bearing, including pump
Body, gear-box, gear, main shaft, from axis, sliding bearing, screw-casing, bearing block, machine seal seat, front cover, bearing, round nut, machinery
Sealing, main shaft and is respectively provided with 2 screw-casings from axis, and machine envelope seat and bearing are arranged in the inner hole of bearing block, and bearing block is logical
It crosses machine envelope seat positioning and is fixed on pump housing right end, mechanical seal is arranged in the left end of machine envelope seat and cooperates with main shaft and from axis, main shaft
It is fixed in bearing block with from axis by bearing, round nut, front cover is arranged in bearing block right end, and the pump housing is arranged in sliding bearing
Left end simultaneously cooperates with main shaft and from axis, and main shaft and the left end from axis is arranged in gear, and gear-box is arranged in pump housing left end.
The bearing is double-row angular contact bal bearing.
The utility model compared with prior art, the beneficial effect is that: 1, sealing performance improve, the utility model use
2 mechanical seals, 4 mechanical seals than original technology reduce 2 mechanical seals, so that making the probability of leakage reduces
50%；2, the utility model reduce compared with original technology rear support to make the axial dimension of main shaft and countershaft shorten,
It is unlikely to deform；3, main shaft, from axis, screw-casing, mechanical seal, bearing, bearing block, machine envelope these components of seat all in pump housing exterior
Match, so that dismounting is easy to maintain；4, the utility model reduce compared with original technology 1 rear support, 2 mechanical seals and
2 bearings, structure is simple, production cost reduces.
Detailed description of the invention
Fig. 1 is the double-suction double screw pump structural schematic diagram using traditional technology；
Fig. 2 is the utility model structure diagram；
In figure: 1- gear-box, 2- gear, 3- is from axis, 4- main shaft, 5- sliding bearing, the 6- pump housing, 7- screw-casing, 8- bearing
Seat, 9- front cover, 10- round nut, 11- bearing, 12- mechanical seal, 13- machine seal seat.
Specific embodiment
Referring to attached drawing 2, the technical solution of the utility model is achieved in that a kind of double suction twin-screw with sliding bearing
Pump, including the pump housing 6, gear-box 1, gear 2, main shaft 4, from axis 3, sliding bearing 5, screw-casing 7, bearing block 8, machine envelope seat 13, preceding
Lid 9, bearing 11, round nut 10, mechanical seal 12, main shaft 4 and are respectively provided with 2 screw-casings 7 from axis 3, and machine seals seat 13 and axis
It holds 11 to be arranged in the inner hole of bearing block 8, bearing block 8 seals the positioning of seat 13 by machine and is fixed on 6 right end of the pump housing, and mechanical seal 12 is set
It sets the left end in machine envelope seat 13 and is fixed on main shaft 4 and from the cooperation of axis 3, main shaft 4 and from axis 3 by bearing 11, round nut 10
In bearing block 8, front cover 9 is arranged in 8 right end of bearing block, and sliding bearing 5 is arranged in the left end of the pump housing 6 and with main shaft 4 and from axis 3
Cooperation, gear 2 are arranged in main shaft 4 and from the left ends of axis 3, and gear-box 1 is fixed on 6 left end of the pump housing.
The bearing 11 is double-row angular contact bal bearing.
Claims (2)
1. a kind of double-suction double screw pump with sliding bearing, characterized in that a kind of double-suction double screw pump with sliding bearing includes
The pump housing, gear-box, gear, main shaft, from axis, sliding bearing, screw-casing, bearing block, machine seal seat, front cover, bearing, round nut, machine
Tool sealing, main shaft and is respectively provided with 2 screw-casings from axis, and machine envelope seat and bearing are arranged in the inner hole of bearing block, bearing block
Seat positioning is sealed by machine and is fixed on pump housing right end, and mechanical seal is arranged in the left end of machine envelope seat and cooperates with main shaft and from axis, main
It axis and is fixed in bearing block from axis by bearing, round nut, front cover setting is arranged in bearing block right end, sliding bearing in the pump housing
Left end and cooperate with main shaft and from axis, gear is arranged in main shaft and the left end from axis, and gear-box is arranged in pump housing left end.
2. a kind of double-suction double screw pump with sliding bearing according to claim 1, it is characterized in that the bearing is double
Column angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822112139.1U CN209340140U (en) | 2018-12-10 | 2018-12-10 | A kind of double-suction double screw pump with sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822112139.1U CN209340140U (en) | 2018-12-10 | 2018-12-10 | A kind of double-suction double screw pump with sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209340140U true CN209340140U (en) | 2019-09-03 |
Family
ID=67757352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822112139.1U Expired - Fee Related CN209340140U (en) | 2018-12-10 | 2018-12-10 | A kind of double-suction double screw pump with sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209340140U (en) |
-
2018
- 2018-12-10 CN CN201822112139.1U patent/CN209340140U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190903 Termination date: 20211210 |