CN204677432U - Full mechanical seal Roots pump - Google Patents
Full mechanical seal Roots pump Download PDFInfo
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- CN204677432U CN204677432U CN201520279014.1U CN201520279014U CN204677432U CN 204677432 U CN204677432 U CN 204677432U CN 201520279014 U CN201520279014 U CN 201520279014U CN 204677432 U CN204677432 U CN 204677432U
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- mechanical seal
- main shaft
- bearing support
- bearing
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Abstract
The utility model relates to a kind of full mechanical seal Roots pump, primarily of the pump housing, main shaft, driven shaft, rotor, bearing, rear end cover, bonnet, front cover, protecgulum, shaft seal gland and motor link press span composition, the arranged outside of end cap and front cover has bearing support in the rear, bearing is embedded in the chopped-off head step hole of bearing support, main shaft between bearing support and protecgulum is provided with disc, main shaft outside disc is provided with oil storage ring, mechanical seal structure in adopting between main shaft and rear end cover and between main shaft and front cover, between described bearing and mechanical seal structure, by piston ring seat, piston ring is installed, described piston ring is positioned at the step hole of bearing support, and and between bearing support, be provided with piston ring lining, main shaft outside oil storage ring and protecgulum, the sealing of outer mechanical seal structure is adopted between motor link press span.
Description
Technical field
The utility model relates to a kind of vacuum equipment, particularly relates to a kind of full mechanical seal Roots pump.
Background technique
The nearly all pharmaceutical factory in the current whole world, health product raw material manufacturing enterprise are all in use Roots pump or Roots Vacuum Pump Units.Because Roots pump running speed is very high, a lubricating oil tank must being equipped with at the two ends of pump, making each transmission part of Roots pump have enough lubrication and coolings when running up.And the pumping chamber of Roots pump has not allowed oil, otherwise oil pollution can be caused to taking out medium.In order to improve the sealing effect of vacuum pump, reinforced seal is improved to mechanical seal, the seal arrangement that mechanical seal is made up of the flat frictional pair that a pair or several forms rotating ring and stationary ring, the pressure of resilient member and sealing medium is relied on to produce suitable impacting force at the contact surface of the rotating ring rotated and stationary ring, these two end faces are combined closely, maintains one deck and thin liquid film between seal face and reach the object of sealing.
The mechanical sealing mechanism that current Roots pump adopts, owing to being hermetically sealed form between mechanical sealing mechanism and bearing, lubricant oil cannot enter in sealing mechanism, long-time use can make sealing configuration lubrication effect be deteriorated, and cause because heat is too high burning, affect the working life of Roots pump, need frequent disassembling, assembling and replacing or work a period of time to stop.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of full mechanical seal Roots pump, can not only improve the sealing effect of Roots pump, the lubricity of mechanical seal structure can be ensured simultaneously, take away heat, reduce bearing temperature, solve bearing high temperature burnout problems.
The purpose of this utility model is achieved in that a kind of full mechanical seal Roots pump, primarily of the pump housing, main shaft, driven shaft, rotor, bearing, rear end cover, bonnet, front cover, protecgulum, shaft seal gland and motor link press span composition, the arranged outside of end cap and front cover has bearing support in the rear, bearing is embedded in the chopped-off head step hole of bearing support, main shaft between bearing support and protecgulum is provided with disc, main shaft outside disc is provided with oil storage ring, mechanical seal structure in adopting between main shaft and rear end cover and between main shaft and front cover, between described bearing and mechanical seal structure, by piston ring seat, piston ring is installed, described piston ring is positioned at the step hole of bearing support, and and between bearing support, be provided with piston ring lining, main shaft outside oil storage ring and protecgulum, the sealing of outer mechanical seal structure is adopted between motor link press span.
Described bearing support offers oil drainage hole.
Interior mechanical seal structure and outer mechanical seal structure form by holding down bolt, counterbalance spring, rotating ring and stationary ring, seal ring of moving ring is provided with in the step hole of rotating ring, in the step hole of stationary ring, be provided with stationary ring seal ring, counterbalance spring is arranged between holding down bolt and rotating ring.
Compared with prior art, the beneficial effects of the utility model are:
The utility model all have employed mechanical seal between pump chamber and oil pocket, completely cut off the environmental disturbances problem between pump chamber and oil pocket, make not exist between oil pocket and pump chamber the situation of collaborating and disturbing because of the stability of mechanical seal, thus protect the working life of pump oil, reduce the damage problem causing pump because of pump oil; Piston ring packing together with simultaneously having between mechanical seal with bearing, lubricating oil portion can be ensured like this and there is mechanical seal position, ensure that the lubrication of mechanical seal, major part lubricant oil flows out from oil drainage hole, take away heat, certainly separate the overheated and problem of burning of mechanical seal, and make bearing part there is parts of lubricating oil at bearing cover place, ensure that the lubrication effect of bearing, meanwhile, too much lubricant oil directly flows out from packing ring and bearing cover, takes away heat, reduce bearing temperature, solve bearing high temperature burnout problems.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the enlarged view at A place in Fig. 1.
Fig. 4 is the enlarged view at B place in Fig. 1.
Fig. 5 is the enlarged view at C place in Fig. 1.
Wherein:
The pump housing 1, main shaft 2, driven shaft 3, rotor 4, bearing 5, rear end cover 6, bonnet 7, front cover 8, protecgulum 9, shaft seal gland 10, motor link press span 11, bearing support 12, rear fuel tank 13, piston ring seat 14, piston ring 15, piston ring lining 16, front fuel tank 17, disc 18, oil storage ring 19, cooler 20, holding down bolt 21, counterbalance spring 22, rotating ring 23, stationary ring 24, seal ring of moving ring 25, stationary ring seal ring 26.
Embodiment
See Fig. 1-Fig. 2, the utility model relates to a kind of full mechanical seal Roots pump, forms primarily of the pump housing 1, main shaft 2, driven shaft 3, rotor 4, bearing 5, rear end cover 6, bonnet 7, front cover 8, protecgulum 9, shaft seal gland 10 and motor link press span 11.Described main shaft 2 and driven shaft 3 are installed in the pump housing 1, rotor 4 is installed in main shaft 2 and driven shaft 3, rear end cover 6 socket head screw is fixedly connected on the pump housing 1 rear end, the arranged outside of end cap 6 has bearing support 12 in the rear, between bearing support 12 with rear end cover 6, interference is connected, what step hole bearing support 12 center is provided with, bearing 5 is embedded in the chopped-off head step hole of bearing support 12, bonnet 7 socket head screw is fixedly connected on rear side of rear end cover 2, the outside of bearing support 12 is sealed by shaft seal gland 10, the seal chamber formed between bonnet 7 and rear end cover 6 is rear fuel tank 13, main shaft 2 rear end stretches out rear end cover 2 and bearing support 12 is placed in rear fuel tank 13, in adopting between main shaft 2 and rear end cover 6, mechanical seal structure seals, between described bearing 5 and mechanical seal structure, by piston ring seat 14, piston ring 15 is installed, described piston ring 15 is positioned at the step hole of bearing support 12, and and be provided with piston ring lining 16 between bearing support 12, adopt piston ring packing can ensure lubricating oil portion and there is mechanical seal position, ensure that the lubrication of mechanical seal, on described bearing support 12, offer oil drainage hole 12.1 simultaneously, major part lubricant oil flows out from oil drainage hole, take away heat, certainly separate the overheated and problem of burning of mechanical seal.Front cover 8 is placed in the pump housing 1 front end, protecgulum 9 is placed on front side of front cover 8, the seal chamber formed between protecgulum 9 and front cover 8 is front fuel tank 17, motor link press span 11 hex screw is fixedly connected on front side of protecgulum 9, front cover 8 and protecgulum 9 are stretched out in main shaft 2 front end, the front end interference of front cover 8 is connected with bearing support 12, bearing 5 is equipped with in the front end step hole of bearing support 12, main shaft 2 and front cover 8, mechanical seal structure sealing in adopting between bearing support 12, same between interior mechanical seal structure with bearing 5 piston ring 15 is installed, the front end bearing gland 10 of bearing support 12 seals, main shaft 2 between bearing support 12 and protecgulum 9 is provided with disc 18, disc 18 is by round nut fixing and locking, main shaft 2 outside disc 18 is provided with oil storage ring 19, main shaft 2 outside oil storage ring 19 and protecgulum 2, the sealing of outer mechanical seal structure is adopted between motor link press span 11, air inlet cover plate O RunddichtringO and hex screw are fixedly connected on the pump housing 1 top suction port, exhaust cover plate O RunddichtringO and hex screw are fixedly connected on bottom the pump housing 1 and a left side, the relief opening of right side wall, cooler 20 is provided with in the rear in fuel tank 13 and front fuel tank 17, for lowering the temperature to lubricant oil, avoid the heat of pump body too high.
See Fig. 3-5, described interior mechanical seal structure and outer mechanical seal structure form by holding down bolt 21, counterbalance spring 22, rotating ring 23 and stationary ring 24, seal ring of moving ring 25 is provided with in the step hole of rotating ring 23, in the step hole of stationary ring 24, be provided with stationary ring seal ring 26, counterbalance spring 22 is arranged between holding down bolt 21 and rotating ring 23.
Claims (3)
1. a full mechanical seal Roots pump, primarily of the pump housing (1), main shaft (2), driven shaft (3), rotor (4), bearing (5), rear end cover (6), bonnet (7), front cover (8), protecgulum (9), shaft seal gland (10) and motor link press span (11) composition, the arranged outside of end cap (6) and front cover (8) has bearing support (12) in the rear, bearing (5) is embedded in the chopped-off head step hole of bearing support (12), main shaft (2) between bearing support (12) and protecgulum (9) is provided with disc (18), the main shaft (2) in disc (18) outside is provided with oil storage ring (19), mechanical seal structure in adopting between main shaft (2) and rear end cover (6) and between main shaft (2) and front cover (8), it is characterized in that by piston ring seat (14), piston ring (15) being installed between described bearing (5) and mechanical seal structure, described piston ring (15) is positioned at the step hole of bearing support (12), and and be provided with piston ring lining (16) between bearing support (12), at main shaft (2) and the protecgulum (2) in oil storage ring (19) outside, the sealing of outer mechanical seal structure is adopted between motor link press span (11).
2. the full mechanical seal Roots pump of one according to claim 1, is characterized in that offering oil drainage hole on described bearing support (12).
3. the full mechanical seal Roots pump of one according to claim 1 and 2, it is characterized in that described interior mechanical seal structure and outer mechanical seal structure form by holding down bolt (21), counterbalance spring (22), rotating ring (23) and stationary ring (24), seal ring of moving ring (25) is provided with in the step hole of rotating ring (23), in the step hole of stationary ring (24), be provided with stationary ring seal ring (26), counterbalance spring (22) is arranged between holding down bolt (21) and rotating ring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279014.1U CN204677432U (en) | 2015-05-04 | 2015-05-04 | Full mechanical seal Roots pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279014.1U CN204677432U (en) | 2015-05-04 | 2015-05-04 | Full mechanical seal Roots pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677432U true CN204677432U (en) | 2015-09-30 |
Family
ID=54177128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279014.1U Active CN204677432U (en) | 2015-05-04 | 2015-05-04 | Full mechanical seal Roots pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677432U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864036A (en) * | 2016-06-12 | 2016-08-17 | 无锡市四方真空设备有限公司 | Roots pump with mechanical sealing structures |
| CN105889068A (en) * | 2016-06-12 | 2016-08-24 | 无锡市四方真空设备有限公司 | Screw vacuum pump with piston ring sealing and mechanical sealing structures |
| CN106089707A (en) * | 2016-06-13 | 2016-11-09 | 江苏润海能源科技有限公司 | Energy-saving and high-pressure Roots blower |
| CN110566459A (en) * | 2019-09-11 | 2019-12-13 | 烟台东德实业有限公司 | Hydrogen circulating pump assembly |
-
2015
- 2015-05-04 CN CN201520279014.1U patent/CN204677432U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864036A (en) * | 2016-06-12 | 2016-08-17 | 无锡市四方真空设备有限公司 | Roots pump with mechanical sealing structures |
| CN105889068A (en) * | 2016-06-12 | 2016-08-24 | 无锡市四方真空设备有限公司 | Screw vacuum pump with piston ring sealing and mechanical sealing structures |
| CN106089707A (en) * | 2016-06-13 | 2016-11-09 | 江苏润海能源科技有限公司 | Energy-saving and high-pressure Roots blower |
| CN110566459A (en) * | 2019-09-11 | 2019-12-13 | 烟台东德实业有限公司 | Hydrogen circulating pump assembly |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |