CN105333149A - Contactless sealing structure of high-speed shaft of plunger pump - Google Patents
Contactless sealing structure of high-speed shaft of plunger pump Download PDFInfo
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- CN105333149A CN105333149A CN201510898049.8A CN201510898049A CN105333149A CN 105333149 A CN105333149 A CN 105333149A CN 201510898049 A CN201510898049 A CN 201510898049A CN 105333149 A CN105333149 A CN 105333149A
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- speed shaft
- groove
- high speed
- sealing structure
- plunger pump
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention relates to a contactless sealing structure of a high-speed shaft of a plunger pump. The high-speed shaft (1) extends out of a box body of the plunger pump. The sealing structure comprises a bearing (2), a dynamic ring (3) and a bearing cover (4), wherein the bearing (2) sleeves one end of the high-speed shaft (1); the dynamic ring (3) sleeves the high-speed shaft (1) at one side of the bearing (2) and is fixedly connected with the high-speed shaft (1); the bearing cover (4) sleeves the outer side of the dynamic ring (3) and is connected with the box body; at least two annular slots are formed in an outer circle of one side, connected to the bearing (2), of the dynamic ring (3); grooves in match with the slots are formed in the corresponding positions on the bearing cover (4); the slots and the grooves are matched to form at least two annular oil storing chambers which intercommunicate and also communicate with the box body. Compared with the prior art, the contactless sealing structure has the advantages of being simple in structure, convenient to use, and good in sealing effect.
Description
Technical field
The present invention relates to a kind of sealing configuration, especially relate to a kind of contactless sealing structure of plunger pump high speed shaft.
Background technique
Plunger pump needs to be driven by motor or other power plant, the rotating speed of general motor is higher, and between Pump and Electromotor by respective shaft and utilize coupling make its be connected, memory box due to pump has a certain amount of lubricant oil, the high speed shaft of pump passes the sealing must considering between centers in casing, otherwise have the leakage of lubricant oil, cause the pollution of environment and the loss of energy consumption.Conventional seal style has reinforced seal, jam type packing sealing, and also have stationary ring, rotating ring combined labyrinth and carbon gland, and reinforced seal dismounting is inconvenient, motor and plunger pump must be thrown off completely could dismantle and install, user's spot replace quite bothers; Jam type packing is then relatively short for sealing life, and operating cost is high and efficiency is lower; Quiet rotating ring combined seal structure is complicated, and number of spare parts is many, easily goes wrong in operation.
Summary of the invention
Object of the present invention is exactly provide a kind of contactless sealing structure of plunger pump high speed shaft to overcome defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions:
A kind of contactless sealing structure of plunger pump high speed shaft, described high speed shaft stretches out plunger pump casing, described sealing configuration comprises rotating ring, bearing and bearing cap, described bearing housing is located at described high speed shaft one end, the high speed shaft that described moving ring sleeve is located at bearing side is fixedly connected with described high speed shaft, described bearing cap to be set in outside described rotating ring and to be connected with casing, the outer ring of described rotating ring connection bearing one end is provided with at least one annular groove, described bearing cap relevant position arranges the groove of coupling, described groove and matching grooves form at least one annular accumulator, each accumulator is interconnected and is communicated with casing.
Described annular groove is provided with three, comprise the first annular groove, second annular groove and the 3rd annular groove, three annular grooves are that step type is distributed in rotating ring outer ring successively, described groove relative set three, comprise the first groove, second groove and the 3rd groove, be distributed in the inwall of bearing cap successively, and mate formation first accumulator one by one with three annular grooves, second accumulator and the 3rd accumulator, the accumulator interconnected that three annular grooves of step design and three matching grooves are formed, along with the rotation of high speed shaft, lubricant oil in casing can get rid of the limit wall to rotating ring and bearing cap, part lubricant oil can be blocked by limit wall and down trickle, the small part lubricant oil be not blocked can enter above-mentioned three accumulators, and down drop down with accumulator, along with accumulator is more away from casing side, get rid of into lubricant oil also can reduce gradually.
Described bearing cap lower end and bearing joint are provided with a shoe cream room, the first accumulator, the second accumulator and the 3rd accumulator described in described shoe cream room is communicated with, described shoe cream room is also communicated with casing, the lubricant oil dropped down in three accumulators can be collected in this shoe cream room, because shoe cream room is communicated with casing, lubricant oil finally flows back to casing.
Be communicated with the casing of shoe cream room side and be provided with the first back flash be communicated with described shoe cream room, the lubricant oil that the first back flash is conveniently collected in shoe cream room is set and flows into smoothly in casing.
Described rotating ring outer ring the 3rd annular groove is other is provided with the 4th groove, described bearing cap relevant position is provided with projection, described projection limit wall and the 4th described ditch trough rim wall closely cooperate, completely cut off with described shoe cream room, by the ingenious cooperation of projection and the 4th ditch trough rim wall, bearing cap is completely cut off away from bearing side and shoe cream room, prevents the oil in shoe cream room from flowing out, also can flow into casing by shoe cream room by the impurity such as the extraneous rainwater of resistance.
Described bearing cap inwall the 3rd groove is other is provided with the 4th groove and the 5th groove, the 4th described groove and the 5th groove and described rotating ring inwall fasten formation first water chamber and the second water chamber, the first described water chamber is communicated with outside casing with the second water chamber, high speed shaft High Rotation Speed, due to centrifugal action, the impurity such as extraneous rainwater will enter the first water chamber or the second water chamber, because the first water chamber is only communicated with outside casing with the second water chamber, thus be got rid of by the impurity such as rainwater.
Described bearing cap is provided with the second back flash away from bearing one end, and the first water chamber described in described second back flash is communicated with is with the second water chamber and be communicated with outside casing, arranges the second back flash and facilitates the impurity such as rainwater to discharge.
Sealing structure also comprises O type circle, and described rotating ring is connected with described high speed shaft seal by O type circle, arranges the lubricant oil flowed out when O type circle is salable to be rotated along high speed shaft.
Described rotating ring and high speed shaft relevant position are provided with screw, and are fixedly connected with by Cock screw, realize the closely fixing of rotating ring and high speed shaft, make rotating ring with high speed shaft High Rotation Speed.
Compared with prior art, tool of the present invention has the following advantages:
(1) groove by the multiple annular channel on rotating ring and bearing cap match forms accumulator, and collect lubricant oil, flow back to casing eventually through the first back flash, lubricant oil obtains and effectively controls, and number of spare parts is few, security of operation;
(2) rotating ring and bearing cap form water chamber away from bearing side, and separated by rotating ring and bearing cap limit wall with accumulator, flow out casing by the second back flash after extraneous rainwater or impurity etc. are collected, effectively prevent the parts in the magazine pollution casings such as rainwater;
(3) sealing structure is easy to use, operating cost is low, efficiency is higher, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the contactless sealing structure of plunger pump high speed shaft;
Fig. 2 is rotating ring sectional view;
Fig. 3 is bearing cap sectional view.
In figure, 1 is high speed shaft, and 2 is bearing, 3 is rotating ring, and 4 is bearing cap, and 5 is the first annular groove, 6 is the second annular groove, and 7 is the 3rd annular groove, and 8 is the first groove, 9 is the second groove, and 10 is the 3rd groove, and 11 is the first accumulator, 12 is the second accumulator, and 13 is the 3rd accumulator, and 14 is shoe cream room, 15 is the first back flash, 16 is the 4th groove, and 17 is projection, and 18 is the 4th groove, 19 is the 5th groove, 20 is the first water chamber, and 21 is the second water chamber, and 22 is the second back flash, 23 is O type circle, and 24 is Cock screw.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figures 1 to 3, a kind of contactless sealing structure of plunger pump high speed shaft, described high speed shaft 1 stretches out plunger pump casing, described sealing configuration comprises bearing 2, rotating ring 3 and bearing cap 4, described bearing 2 is sheathed on described high speed shaft 1 one end, the high speed shaft 1 that described rotating ring 3 is set in bearing 2 one end is fixedly connected with described high speed shaft 1, described bearing cap 4 to be set in outside described rotating ring 3 and to be connected with casing, the outer ring of described rotating ring 3 connection bearing 2 side is provided with at least one annular groove, described bearing cap 4 relevant position arranges the groove of coupling, described groove and matching grooves form at least one annular accumulator, each accumulator is interconnected and is communicated with casing.
Wherein said annular groove is provided with three, comprise the first annular groove 5, second annular groove 6 and the 3rd annular groove 7, three annular grooves are that step type is distributed in rotating ring 3 outer ring successively, described groove relative set three, comprise the first groove 8, second groove 9 and the 3rd groove 10, be distributed in the inwall of bearing cap 4 successively, and mate formation first accumulator 11 one by one with three annular grooves, second accumulator 12 and the 3rd accumulator 13, the accumulator interconnected that three annular grooves of step design and three matching grooves are formed, along with the rotation of high speed shaft 1, lubricant oil in casing can get rid of the limit wall to rotating ring 3 and bearing cap 4, part lubricant oil can be blocked by limit wall and down trickle, the small part lubricant oil be not blocked can enter above-mentioned three accumulators, and down drop down with accumulator, along with accumulator is more away from casing side, get rid of into lubricant oil also can reduce gradually.Described bearing cap 4 lower end and bearing 2 joint are provided with a shoe cream room 14, described shoe cream room 14 is communicated with the first described accumulator 11, second accumulator 12 and the 3rd accumulator 13, described shoe cream room 14 is also communicated with casing, the lubricant oil dropped down in three accumulators can be collected in this shoe cream room 14, because shoe cream room 14 is communicated with casing, lubricant oil finally flows back to casing.Be communicated with the casing of shoe cream room 14 side and be provided with the first back flash 15 be communicated with described shoe cream room 14, the lubricant oil that the first back flash 15 is conveniently collected in shoe cream room 14 is set and flows into smoothly in casing.
Described rotating ring 3 outer ring the 3rd annular groove 7 is other is provided with the 4th groove 16, described bearing cap 4 relevant position is provided with projection 17, described projection 17 limit wall and the 4th described groove 16 limit wall closely cooperate, completely cut off with described shoe cream room 14, by the ingenious cooperation of projection 17 and the 4th groove 16 limit wall, bearing cap 4 is completely cut off away from bearing 2 side and shoe cream room 14, prevents the oil in shoe cream room 14 from flowing out, also can flow into casing by shoe cream room 14 by the impurity such as the extraneous rainwater of resistance.Described bearing cap 4 inwall the 3rd groove 10 is other is provided with the 4th groove 18 and the 5th groove 19, the 4th described groove 18 and the 5th groove 19 fasten formation first water chamber 20 and the second water chamber 21 with described rotating ring 3 inwall, the first described water chamber 20 is communicated with outside casing with the second water chamber 21, high speed shaft 1 High Rotation Speed, due to centrifugal action, the impurity such as extraneous rainwater will enter the first water chamber 20 or the second water chamber 21, because the first water chamber 20 is only communicated with outside casing with the second water chamber 21, thus the impurity such as rainwater are got rid of.Described bearing cap 4 is provided with the second back flash 22 away from bearing 2 one end, and the second described back flash 22 is communicated with described the first water chamber 20 with the second water chamber 21 and is communicated with outside casing, arranges the second back flash 22 and facilitates the impurity such as rainwater to discharge.
Sealing structure also comprises O type circle 23, and described rotating ring 3 is tightly connected by O type circle 23 and described high speed shaft 1, arranges the lubricant oil flowed out when O type circle 23 is salable to be rotated along high speed shaft 1.Described rotating ring 3 and high speed shaft 1 relevant position are provided with screw, and are fixedly connected with by Cock screw 24, realize the closely fixing of rotating ring 3 and high speed shaft 1, make rotating ring 3 with high speed shaft 1 High Rotation Speed.
Claims (9)
1. the contactless sealing structure of a plunger pump high speed shaft, described high speed shaft (1) stretches out plunger pump casing, described sealing configuration comprises bearing (2), rotating ring (3) and bearing cap (4), described bearing (2) is sheathed on described high speed shaft (1) one end, the high speed shaft (1) that described rotating ring (3) is set in bearing (2) side is gone up and is fixedly connected with described high speed shaft (1), described bearing cap (4) is set in described rotating ring (3) outside and is connected with casing, it is characterized in that, the outer ring of described rotating ring (3) connection bearing (2) one end is provided with at least one annular groove, described bearing cap (4) relevant position arranges the groove of coupling, described groove and matching grooves form at least one annular accumulator, each accumulator is interconnected and is communicated with casing.
2. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 1, it is characterized in that, described annular groove is provided with three, comprise the first annular groove (5), second annular groove (6) and the 3rd annular groove (7), three annular grooves are that step type is distributed in rotating ring (3) outer ring successively, described groove relative set three, comprise the first groove (8), second groove (9) and the 3rd groove (10), be distributed in the inwall of bearing cap (4) successively, and mate formation first accumulator (11) one by one with three annular grooves, second accumulator (12) and the 3rd accumulator (13).
3. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 2, it is characterized in that, described bearing cap (4) and bearing (2) joint are provided with a shoe cream room (14), the first accumulator (11), the second accumulator (12) and the 3rd accumulator (13) described in described shoe cream room (14) is communicated with, described shoe cream room (14) is also communicated with casing.
4. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 3, it is characterized in that, the casing being communicated with shoe cream room (14) side is provided with the first back flash (15) be communicated with described shoe cream room (14).
5. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 3, it is characterized in that, described rotating ring (3) outer ring the 3rd annular groove (7) is other is provided with the 4th groove (16), described bearing cap (4) relevant position is provided with projection (17), described the 4th groove (16) limit wall described in projection (17) Bian Biyu closely cooperates, and completely cuts off with described shoe cream room (14).
6. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 5, it is characterized in that, described bearing cap (4) inwall the 3rd groove (10) is other is provided with the 4th groove (18) and the 5th groove (19), the 4th described groove (18) and the 5th groove (19) fasten formation first water chamber (20) and the second water chamber (21) with described rotating ring (3) inwall, and described the first water chamber (20) is communicated with outside casing with the second water chamber (21).
7. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 6, it is characterized in that, described bearing cap (4) is provided with the second back flash (22) away from bearing (2) one end, and the first water chamber (20) described in described the second back flash (22) is communicated with is with the second water chamber (21) and be communicated with outside casing.
8. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 1, it is characterized in that, sealing structure also comprises O type circle (23), and described rotating ring (3) is tightly connected by O type circle (23) and described high speed shaft (1).
9. the contactless sealing structure of a kind of plunger pump high speed shaft according to claim 1, it is characterized in that, described rotating ring (3) and high speed shaft (1) relevant position are provided with screw, and are fixedly connected with by Cock screw (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510898049.8A CN105333149A (en) | 2015-12-08 | 2015-12-08 | Contactless sealing structure of high-speed shaft of plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510898049.8A CN105333149A (en) | 2015-12-08 | 2015-12-08 | Contactless sealing structure of high-speed shaft of plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105333149A true CN105333149A (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510898049.8A Pending CN105333149A (en) | 2015-12-08 | 2015-12-08 | Contactless sealing structure of high-speed shaft of plunger pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN105333149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412289A (en) * | 2020-03-26 | 2020-07-14 | 青岛中加特电气股份有限公司 | Sealing device for rotary machine |
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| CN102009663A (en) * | 2010-12-20 | 2011-04-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gear case sealing structure of urban rail vehicle |
| CN202182117U (en) * | 2011-07-13 | 2012-04-04 | 宁波凯特机械有限公司 | Bearing block device for steel wire rope stranding machine pulse liquid circulating lubrication mode |
| EP2610514A1 (en) * | 2011-12-30 | 2013-07-03 | Traktionssysteme Austria GmbH | Electric machine |
| CN104061317A (en) * | 2014-07-14 | 2014-09-24 | 江苏金沃机械有限公司 | Non-contact seal device for high-speed shaft of gear speed reducer |
| CN104179674A (en) * | 2013-05-20 | 2014-12-03 | 米顿罗工业设备（上海）有限公司 | Sealing structure for low-rotation-speed rotating shaft of plunger pump |
| JP2015113861A (en) * | 2013-12-09 | 2015-06-22 | セイコーインスツル株式会社 | Bearing device and information recording reproducing device |
| CN205207676U (en) * | 2015-12-08 | 2016-05-04 | 米顿罗工业设备（上海）有限公司 | Contactless seal structure of plunger pump fast axis |
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2015
- 2015-12-08 CN CN201510898049.8A patent/CN105333149A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009663A (en) * | 2010-12-20 | 2011-04-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gear case sealing structure of urban rail vehicle |
| CN202182117U (en) * | 2011-07-13 | 2012-04-04 | 宁波凯特机械有限公司 | Bearing block device for steel wire rope stranding machine pulse liquid circulating lubrication mode |
| EP2610514A1 (en) * | 2011-12-30 | 2013-07-03 | Traktionssysteme Austria GmbH | Electric machine |
| CN104179674A (en) * | 2013-05-20 | 2014-12-03 | 米顿罗工业设备（上海）有限公司 | Sealing structure for low-rotation-speed rotating shaft of plunger pump |
| JP2015113861A (en) * | 2013-12-09 | 2015-06-22 | セイコーインスツル株式会社 | Bearing device and information recording reproducing device |
| CN104061317A (en) * | 2014-07-14 | 2014-09-24 | 江苏金沃机械有限公司 | Non-contact seal device for high-speed shaft of gear speed reducer |
| CN205207676U (en) * | 2015-12-08 | 2016-05-04 | 米顿罗工业设备（上海）有限公司 | Contactless seal structure of plunger pump fast axis |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412289A (en) * | 2020-03-26 | 2020-07-14 | 青岛中加特电气股份有限公司 | Sealing device for rotary machine |
| CN111412289B (en) * | 2020-03-26 | 2022-07-05 | 青岛中加特电气股份有限公司 | Sealing device for rotary machine |
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Application publication date: 20160217 |
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