CN219119447U - Sealing structure of gear pump - Google Patents
Sealing structure of gear pump Download PDFInfo
- Publication number
- CN219119447U CN219119447U CN202320154431.8U CN202320154431U CN219119447U CN 219119447 U CN219119447 U CN 219119447U CN 202320154431 U CN202320154431 U CN 202320154431U CN 219119447 U CN219119447 U CN 219119447U
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- Prior art keywords
- gear pump
- ring
- thread ring
- sealing structure
- stainless steel
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- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 26
- 239000010935 stainless steel Substances 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 17
- 239000003921 oil Substances 0.000 claims description 14
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Rotary Pumps (AREA)
Abstract
The utility model provides a sealing structure of a gear pump, which comprises a gear pump shell, a stainless steel external thread ring, a ball bearing and a lifting rod, wherein a gear pump shaft is arranged in the gear pump shell in a penetrating way and at the right end of the gear pump shell, through grooves are formed between the gear pump shaft and the inner wall of the right end of the gear pump shell, the stainless steel external thread ring is fixedly adhered to the right end face of the gear pump shell, a plurality of cylindrical limiting rods are fixedly arranged at the right end face of the gear pump shell at equal angles, the cylindrical limiting rods are all positioned at the inner side of the stainless steel external thread ring, and a rubber sealing sleeve is fixedly arranged on the inner side surface of an inner ring of the ball bearing.
Description
Technical Field
The utility model relates to a sealing structure of a gear pump, and belongs to the technical field of gear pump equipment.
Background
The gear pump is a rotary pump which conveys liquid or pressurizes the liquid by means of the change and movement of working volume formed between a pump cylinder and an engaged gear, two closed spaces are formed by two gears, a pump body and a front pump body cover and a rear pump body cover, when the gears rotate, the volume of the space at the disengaging side of the gears is reduced from large to small to form vacuum, the liquid is sucked, the volume of the space at the engaging side of the gears is reduced from large to small, the liquid is extruded into a pipeline, and a suction cavity and a discharge cavity are isolated by the engagement of the two gears. The working environment of the gear pump cannot avoid dust and foreign matters, so that the sealing ring can be worn at the contact part with the main shaft to frequently grind the outer circle of the main shaft into a groove, and the sealing effect is seriously affected after the groove is enlarged.
Chinese patent No.: CN212479571U, mentioned a seal structure for gear pump, including casing and input main shaft, the tip surface of casing is provided with circular shape depressed part, the input main shaft stretches into the inside of casing through the depressed part, the circumference inner wall fixedly connected with first sealing ring of depressed part, the circumference inner wall butt of first sealing ring in the circumference lateral wall of input main shaft, the casing is located depressed part department fixedly connected with metal bearing frame, install the bearing in the metal bearing frame, the input main shaft pass and connect in the bearing, metal bearing frame's fixed surface is connected with sealed lid, sealed lid has seted up the confession the perforation that the input main shaft wears to establish. The utility model effectively improves the use specification of the input main shaft, thereby prolonging the service life of the gear pump, but the sealing cover of the device is fixed by adopting bolts, the dismounting of the sealing structure is not fast and convenient, and the sealing structure of the gear pump is urgently needed at present to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a sealing structure of a gear pump, so as to solve the problems in the background art, and the sealing structure is reasonable in structure, good in practicability, and reasonable in structure, has a sealing function, and is convenient to disassemble and assemble by adopting a threaded connection mode and spring auxiliary jacking, so that the sealing structure of the device is convenient to disassemble and assemble, is convenient for workers to disassemble or assemble and use, and is beneficial to popularization.
In order to achieve the above object, the present utility model is realized by the following technical scheme: the utility model provides a seal structure of gear pump, includes gear pump shell, stainless steel external screw thread ring, ball bearing and lift pull rod, gear pump shell inside and right-hand member run through and are provided with the gear pump shaft, go-between has been seted up between gear pump shaft and the gear pump shell right-hand member inner wall, stainless steel external screw thread ring bonding is fixed at gear pump shell right-hand member face, gear pump shell right-hand member face equiangular fixation has a plurality of cylindrical gag lever posts, and a plurality of cylindrical gag lever posts all are located stainless steel external screw thread ring inboard, ball bearing inner race inboard surface fixation has rubber seal sleeve, ball bearing outer race annular side is fixed with metal bearing frame, stainless steel external screw thread ring annular side has the internal screw thread ring through internal screw thread spin, internal screw thread ring inner side surface right-hand member vertically is fixed with the stationary blade, stationary blade inner side surface is fixed with the step sealing washer, the lift pull rod is provided with two, two the lift pull rod runs through respectively and sets up the internal screw thread ring upper and lower extreme, two lift pull rod relative inboard symmetry installs small-size universal ball, two lift annular side all overlaps small-size reset spring, two annular side all has the level to fix the limit piece.
Further, the rubber sealing sleeve is fixedly sleeved on the annular side face of the gear pump shaft, and the left end of the rubber sealing sleeve is located in the through groove.
Further, a plurality of cylindrical limiting holes are formed in the side surface of the metal bearing seat in a penetrating mode at equal angles, and a plurality of cylindrical limiting rods are respectively inserted into the cylindrical limiting holes.
Further, the metal bearing seat is clamped inside the stainless steel external thread ring.
Further, the right end of the inner side of the step sealing ring is provided with an oil seal, the right end of the gear pump shaft penetrates through the step sealing ring and the inner side of the oil seal, and lubricating oil is arranged on the inner side of the oil seal.
Further, two lifting pull rods are welded on the opposite outer sides of the lifting pull rods, and sponge rings are fixed on the inner sides of the two lifting pull rods.
Further, the rolling ends of the two small universal balls are respectively and laterally abutted against the left side of the upper end and the lower end of the step sealing ring.
Further, the right sides of the upper end and the lower end inside the internal thread ring are horizontally fixed with first limiting sheets, the two lifting rods are respectively penetrated and positioned in the two first limiting sheets, the opposite outer sides of the two small reset springs are respectively propped against the two first limiting sheets, and the opposite inner sides of the two small reset springs are respectively fixed with the two second limiting sheets.
The utility model has the beneficial effects that: according to the sealing structure of the gear pump, the rubber sealing sleeve, the ball bearing, the stainless steel external thread ring, the metal bearing seat, the cylindrical limiting rod, the internal thread ring, the fixing piece, the step sealing ring, the lifting rod, the first limiting piece, the small reset spring, the second limiting piece, the small universal ball and the oil seal are added, and through design improvement and actual use, the sealing structure is good in practicability, has a sealing function, and is fast and convenient to disassemble and assemble by adopting a threaded connection mode and spring auxiliary jacking, so that the sealing structure of the gear pump is convenient to disassemble, install and use by workers, and is beneficial to popularization.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a perspective view of the overall structure of a sealing structure of a gear pump according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a seal structure of a gear pump according to the present utility model;
FIG. 3 is a perspective view of a stainless steel externally threaded ring of a gear pump seal structure according to the present utility model;
FIG. 4 is a schematic view showing a three-dimensional connection of a lifting rod of a sealing structure of a gear pump according to the present utility model;
FIG. 5 is a schematic perspective view of a stepped seal ring of a gear pump seal structure according to the present utility model;
in the figure: the novel high-pressure oil seal device comprises a 1-gear pump housing, a 2-gear pump shaft, a 3-through groove, a 4-rubber sealing sleeve, a 5-ball bearing, a 6-stainless steel external thread ring, a 7-metal bearing seat, an 8-cylindrical limit rod, a 9-cylindrical limit hole, a 10-internal thread ring, a 11-fixing piece, a 12-step sealing ring, a 13-lifting ring, a 14-lifting rod, a 15-first limit piece, a 16-small reset spring, a 17-second limit piece, 18-small universal balls and a 19-oil seal.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a seal structure of gear pump, including gear pump housing 1, stainless steel external thread ring 6, ball bearing 5 and lifting rod 14, gear pump housing 1 inside and right-hand member run through and are provided with gear pump shaft 2, pass through groove 3 has been seted up between gear pump shaft 2 and the gear pump housing 1 right-hand member inner wall, stainless steel external thread ring 6 bonding is fixed at gear pump housing 1 right-hand member face, gear pump housing 1 right-hand member face equiangular fixation has a plurality of cylindrical gag lever posts 8, and a plurality of cylindrical gag lever posts 8 all are located stainless steel external thread ring 6 inboard, ball bearing 5 inner race inboard fixed surface has rubber seal sleeve 4, ball bearing 5 outer lane annular side is fixed with metal bearing frame 7, stainless steel external thread ring 6 annular side has internal thread ring 10 through the internal thread spin, internal thread ring 10 inner surface right-hand member longitudinally fixed has stationary blade 11, stationary blade 11 inboard fixed surface has step sealing washer 12, lifting rod 14 is provided with two, two lifting rod 14 run through respectively and set up the upper and lower end at internal thread ring 10, two lifting rod 14 relative inboard symmetry install small-size universal ball 18, two lifting rod 14 annular side face 16 have two annular side face sets of annular reset spring 16 to install the sealed cover of it, the equal quick-stop bolt 17 has adopted the equal horizontal seal structure of two annular side face of this annular side face setting, when this annular face setting has two annular face setting seal structure to install the quick-up, and the quick-stop device has no seal structure.
As a first embodiment of the present utility model: the fixed cover of rubber seal sleeve 4 is at gear pump shaft 2 annular side, and rubber seal sleeve 4 left end is located logical inslot 3, and a plurality of cylindrical spacing holes 9 have been seted up in the equiangular penetration of metal bearing frame 7 side surface, a plurality of cylindrical gag lever posts 8 insert respectively in a plurality of cylindrical spacing holes 9, through a plurality of cylindrical gag lever posts 8 of interpolation and a plurality of cylindrical spacing holes 9 of seting up, rubber seal sleeve 4 right-hand member is pasted mutually with step sealing washer 12 slip simultaneously for metal bearing frame 7 card is established and can not take place to rock the phenomenon in stainless steel external screw thread ring 6 inboard, and rubber seal sleeve 4 and step sealing washer 12's setting can play good sealed effect for gear pump shaft 2.
The metal bearing seat 7 is clamped on the inner side of the stainless steel external thread ring 6, and the added stainless steel external thread ring 6 facilitates screwing installation of the internal thread ring 10, and can also play a shielding protection function for the metal bearing seat 7.
The right end of the inner side of the step sealing ring 12 is provided with an oil seal 19, the right end of the gear pump shaft 2 penetrates through the step sealing ring 12 and the inner side of the oil seal 19, lubricating oil is arranged on the inner side of the oil seal 19, the gear pump shaft 2 can be inserted into the fixing piece 11 to seal through the added step sealing ring 12, and meanwhile, the gear pump shaft 2 and the oil seal 19 can be inserted into the fixing piece 11 to seal well.
The opposite outsides of the two lifting rods 14 are welded with lifting rings 13, the inner sides of the two lifting rings 13 are fixed with sponge rings, and by adding the two lifting rings 13, a worker conveniently pulls the two lifting rods 14, and the arranged sponge rings (not shown) also enable the worker to hook the two lifting rods 14, so that the hand feeling is better.
The rolling ends of the two small universal balls 18 slide against the left sides of the upper end and the lower end of the step sealing ring 12 respectively, the first limiting plates 15 are horizontally fixed on the right sides of the upper end and the lower end inside the internal thread ring 10, the two lifting rods 14 penetrate through the two first limiting plates 15 respectively, the opposite outer sides of the two small return springs 16 are abutted against the two first limiting plates 15 respectively, the opposite inner sides of the two small return springs 16 are fixed with the two second limiting plates 17 respectively, the force transmitted by the two small return springs 16 can be applied to the two lifting rods 14 respectively through the two added second limiting plates 17, and the two small universal balls 18 can be pushed in opposite directions by the two lifting rods 14, so that the two small universal balls 18 can slide against the upper end and the lower end of the step sealing ring 12, and the joint of the step sealing ring 12 and the gear pump shaft 2 is better in sealing performance.
As a second embodiment of the present utility model: when this device needs to install and use, establish metal bearing frame 7 card in stainless steel external screw thread ring 6 inboard, make a plurality of cylindrical gag lever posts 8 insert respectively and establish in a plurality of cylindrical spacing holes 9, rubber seal sleeve 4 also can the fastening sleeve at gear pump shaft 2 annular side simultaneously, and rubber seal sleeve 4 left end is located logical inslot 3, then screw up the stainless steel external screw thread ring 6 and pass gear pump shaft 2 and screw up the annular side at internal screw thread ring 10, step sealing washer 12 and oil blanket 19 also can overlap at gear pump shaft 2 annular side simultaneously (catch on two pull rings 13 and pull in opposite direction this moment, make two small-size universal balls 18 can not with step sealing washer 12 upper and lower extreme left side offset, simultaneously two second spacing piece 17 follow and move in opposite direction and oppress two small-size reset springs 16 compression respectively, until stainless steel external screw thread ring 6 is completely screwed up on the annular side of internal screw thread ring 10, step sealing washer 12 left end can paste with rubber seal sleeve 4 this moment, then loosen two pull rings 13, and two pull rings 13 and two small-size reset springs 16 are followed in opposite direction, and two small-size reset balls 18 are followed to two and are moved in opposite directions, and two small-size reset balls are followed two and are moved in opposite directions to two small-size seal ring 12, and two small-size ball bearings 18 are moved opposite direction opposite to each other, and two small-size seal ring 12 are moved opposite to each other, and two small-size ball bearings are driven and two small-size opposite to each other, and two small-size ball bearings are compressed.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The utility model provides a seal structure of gear pump, includes gear pump casing (1), stainless steel external screw thread ring (6), ball bearing (5) and lifting rod (14), its characterized in that: a gear pump shaft (2) is arranged in the gear pump shell (1) in a penetrating manner at the inner part and the right end of the gear pump shell (1), and a through groove (3) is formed between the gear pump shaft (2) and the inner wall of the right end of the gear pump shell (1);
the stainless steel external thread ring (6) is fixedly adhered to the right end face of the gear pump housing (1), a plurality of cylindrical limiting rods (8) are fixed on the right end face of the gear pump housing (1) at equal angles, the cylindrical limiting rods (8) are all positioned on the inner side of the stainless steel external thread ring (6), a rubber sealing sleeve (4) is fixedly arranged on the inner side surface of an inner ring of the ball bearing (5), and a metal bearing seat (7) is fixedly arranged on the annular side face of an outer ring of the ball bearing (5);
the stainless steel external thread ring (6) annular side has internal thread ring (10) through internal and external screw thread screw-on, internal thread ring (10) medial surface right-hand member vertically is fixed with stationary blade (11), stationary blade (11) inboard surface fixation has step sealing washer (12), carry pull rod (14) are provided with two, two carry pull rod (14) respectively run through and set up internal thread ring (10) upper and lower extreme, two carry pull rod (14) relatively inboard symmetry install small-size universal ball (18), two carry pull rod (14) annular side all overlaps and have small-size reset spring (16), two carry pull rod (14) annular side all horizontally fixed with second spacing piece (17).
2. The sealing structure of a gear pump according to claim 1, wherein: the rubber sealing sleeve (4) is fixedly sleeved on the annular side face of the gear pump shaft (2), and the left end of the rubber sealing sleeve (4) is located in the through groove (3).
3. The sealing structure of a gear pump according to claim 1, wherein: a plurality of cylindrical limiting holes (9) are formed in the side surface of the metal bearing seat (7) in a penetrating mode at equal angles, and a plurality of cylindrical limiting rods (8) are respectively inserted into the cylindrical limiting holes (9).
4. The sealing structure of a gear pump according to claim 1, wherein: the metal bearing seat (7) is clamped on the inner side of the stainless steel external thread ring (6).
5. The sealing structure of a gear pump according to claim 1, wherein: the right end of the inner side of the step sealing ring (12) is provided with an oil seal (19), the right end of the gear pump shaft (2) penetrates through the step sealing ring (12) and the inner side of the oil seal (19), and the inner side of the oil seal (19) is provided with lubricating oil.
6. The sealing structure of a gear pump according to claim 1, wherein: the opposite outer sides of the two lifting rods (14) are welded with lifting rings (13), and the inner sides of the two lifting rings (13) are fixed with sponge rings.
7. The sealing structure of a gear pump according to claim 1, wherein: the rolling ends of the two small universal balls (18) are respectively and laterally abutted with the left sides of the upper end and the lower end of the step sealing ring (12).
8. The sealing structure of a gear pump according to claim 1, wherein: first limiting sheets (15) are horizontally fixed on the right sides of the upper end and the lower end inside the internal thread ring (10), and the two lifting rods (14) are respectively penetrated and positioned in the two first limiting sheets (15).
9. The sealing structure of the gear pump according to claim 8, wherein: the opposite outer sides of the two small-sized return springs (16) are respectively propped against the two first limiting sheets (15), and the opposite inner sides of the two small-sized return springs (16) are respectively fixed with the two second limiting sheets (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320154431.8U CN219119447U (en) | 2023-02-08 | 2023-02-08 | Sealing structure of gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320154431.8U CN219119447U (en) | 2023-02-08 | 2023-02-08 | Sealing structure of gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219119447U true CN219119447U (en) | 2023-06-02 |
Family
ID=86519957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320154431.8U Active CN219119447U (en) | 2023-02-08 | 2023-02-08 | Sealing structure of gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219119447U (en) |
-
2023
- 2023-02-08 CN CN202320154431.8U patent/CN219119447U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 223300 east of Nanchang Road and north of Qianjiang Road, Huaiyin District, Huai'an City, Jiangsu Province (No. 19, Qianjiang East Road, Huaiyin Industrial Park) Patentee after: HUAIAN SHENGJIE HYDRAULIC MACHINERY Co.,Ltd. Country or region after: China Address before: 223300 East of Nanchang Road and North of Qianjiang Road in Huaiyin District, Wuxi City, Jiangsu Province (No. 19 Qianjiang East Road, Huaiyin Industrial Park) Patentee before: HUAIAN SHENGJIE HYDRAULIC MACHINERY Co.,Ltd. Country or region before: China |