CN212028049U - Gear pump packing sealing device - Google Patents
Gear pump packing sealing device Download PDFInfo
- Publication number
- CN212028049U CN212028049U CN202020111835.5U CN202020111835U CN212028049U CN 212028049 U CN212028049 U CN 212028049U CN 202020111835 U CN202020111835 U CN 202020111835U CN 212028049 U CN212028049 U CN 212028049U
- Authority
- CN
- China
- Prior art keywords
- gear pump
- rotating shaft
- hole
- filling cavity
- filler
- 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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Links
- 238000012856 packing Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model provides a gear pump packing sealing device, include: the base is provided with a supporting part and a filling cavity, and the supporting part is provided with a first through hole; the supporting part is fixedly connected with a pump body of the gear pump; one end of the rotating shaft is fixedly connected with the center of the driving gear of the gear pump, and the other end of the rotating shaft is rotatably connected with the first through hole and penetrates through the filling cavity; the distance sealing sleeve is sleeved on the rotating shaft and is positioned at the bottom of the filling cavity; the packing is sleeved on the rotating shaft and abuts against the gauge sealing sleeve; the gland can cover the filling cavity, abut against the filler and is fixedly connected with the base; the gland is provided with a second through hole, and the other end of the rotating shaft is rotatably connected with the second through hole. The utility model has the advantages that: the filler prevents external dust particles from entering the gear pump; after the gland covers the filling cavity, the spacer seal sleeve isolates the filler from the supporting part of the base, the gap between the spacer seal sleeve and the rotating shaft is small, and the spacer seal sleeve also plays a role in buffering to prevent the filler from leaking to the gear pump through the first through hole.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a gear pump technical field specifically relates to a gear pump packing sealing device.
[ background of the invention ]
Gear pumps are rotary pumps that deliver or pressurize fluid by virtue of the change in working volume and movement created between a pump cylinder and a meshing gear. Two gears, pump body and front and back covers form two closed spaces, when the gears rotate, the space on the gear disengagement side becomes larger from smaller to larger to form vacuum to suck liquid, and the space on the gear engagement side becomes smaller from larger to smaller to squeeze liquid into the pipeline. The rotating shaft is fixedly connected with the center of a driving gear of the gear pump, and the rotating shaft drives the gear pump to work.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing a gear pump packing sealing device, prevent effectively that the foreign particles from advancing in the gear pump.
The utility model discloses a realize like this: a gear pump packing seal, comprising: the base is provided with a supporting part and a filling cavity, and the supporting part is provided with a first through hole; the supporting part is fixedly connected with a pump body of the gear pump;
one end of the rotating shaft is fixedly connected with the center of a driving gear of the gear pump, and the other end of the rotating shaft is rotatably connected with the first through hole and penetrates through the filling cavity;
the distance sealing sleeve is sleeved on the rotating shaft and is positioned at the bottom of the filling cavity;
the packing is sleeved on the rotating shaft and abuts against the gauge sealing sleeve;
the gland can cover the filling cavity, abut against the filler and is fixedly connected with the base; the gland is provided with a second through hole, and the other end of the rotating shaft is rotatably connected with the second through hole.
And the other end of the rotating shaft is connected with an output shaft of the motor through a coupling.
Furthermore, the inner ring surface of the distance sealing sleeve is provided with a groove.
Furthermore, the clearance between the inner ring surface of the distance sealing sleeve and the rotating shaft is 0.2mm, and the clearance tolerance is +/-0.1 mm.
Further, the gauge sealing sleeve is made of stainless steel.
Further, the filler is made of tetrafluoro material.
The utility model has the advantages that: a distance sealing sleeve and a filler are arranged in a filling cavity of the base, and the filler prevents external dust particles from entering the gear pump; after the gland covers the filling cavity, the spacer seal sleeve isolates the filler from the supporting part of the base, the gap between the spacer seal sleeve and the rotating shaft is small, and after the filler receives the acting force of the gland, the spacer seal sleeve also plays a role in buffering to prevent the filler from leaking to the gear pump through the first through hole.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is the utility model discloses a gear pump packing sealing device's half section structure sketch map.
Fig. 2 is a schematic view of a half-section structure of the middle base of the present invention.
Fig. 3 is a schematic diagram of a half-section structure of the middle gland of the present invention.
Fig. 4 is an appearance structure schematic diagram of the gear pump packing sealing device of the present invention.
The labels in the figure are: the device comprises a base 1, a supporting part 11, a first through hole 111, a filling cavity 12, a gear pump 2, a rotating shaft 3, a distance sealing sleeve 4, a groove 41, a packing 5, a gland 6, a second through hole 61, a motor 7, a first gap 8 and a second gap 9.
[ detailed description ] embodiments
The embodiment of the utility model provides a through providing a gear pump packing sealing device, solved among the prior art technical problem that the foreign particles entered into in the gear pump, realized improving the technical effect of the life of gear pump.
The embodiment of the utility model provides an in technical scheme for solving above-mentioned problem, the general thinking is as follows: the packing intracavity of base sets up gauge seal cover and filler, and the gland can compress tightly the filler after covering the packing chamber, and the gauge seal cover plays the effect of keeping apart buffering decompression, and the clearance of gauge seal cover and pivot is little, prevents to pack to leak the gear pump through first through-hole after the pressurized.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
Referring to fig. 1 and 4, the gear pump 2 of the present invention is a preferred embodiment of a packing 5 seal. The utility model discloses a: the base 1 is provided with a supporting part 11 and a filling cavity 12, wherein the supporting part 11 is provided with a first through hole 111; the supporting part 11 is fixedly connected with the pump body of the gear pump 2; one end of the rotating shaft 3 is fixedly connected with the center of the driving gear of the gear pump 2, and the other end of the rotating shaft is rotatably connected with the first through hole 111 and penetrates through the filling cavity 12; the distance sealing sleeve 4 is sleeved on the rotating shaft 3 and is positioned at the bottom of the filling cavity 12; the packing 5 is sleeved on the rotating shaft 3 and abuts against the gauge sealing sleeve 4; the distance seal 4 prevents the filler 5 from entering the gear pump 2 through the first through hole 111 after being pressurized. A gland 6 capable of covering the filling cavity 12, abutting against the packing 5, and fixedly connected with the base 1; the gland 6 is provided with a second through hole 61, and the other end of the rotating shaft 3 is rotatably connected with the second through hole 61. The gland 6 can apply pressure to the packing 5 to ensure that the packing 5 is compacted, and the packing 5 can prevent external impurity particles from entering the gear pump 2; however, if the pressure applied by the gland 6 is too high, the packing 5 leaks into the gear pump 2 through the first through hole 111 due to the too high pressure if the distance sealing sleeve 4 is not provided, and thus the packing 5 may damage the gear pump 2. Generally, the gap between the rotating shaft 3 and the first through hole 111 is 3mm, i.e., the first gap 8 in fig. 1.
The motor is characterized by further comprising a motor 7, and the other end of the rotating shaft 3 is connected with an output shaft of the motor 7 through a coupler. The output shaft of the motor 7 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the gear pump 2 to work.
The inner ring surface of the distance sealing sleeve 4 is provided with a groove 41, and the groove 41 is trapezoidal. The grooves 41 mainly serve to buffer and decompress the pressure and bear the extrusion of the packing 5. The clearance between the inner ring surface of the distance sealing sleeve 4 and the rotating shaft 3 is 0.2mm, namely a second clearance 9 in the figure 1, and the clearance tolerance is +/-0.1 mm; this more effectively prevents the filler 5 from passing through the first through-hole 111.
The gauge seal cartridge is made of stainless steel and other materials. The filler is made of materials such as PTFE and the like. Tetrafluoro is a polymer of tetrafluoroethylene, abbreviated in english as PTFE.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides a gear pump packing sealing device which characterized in that: the method comprises the following steps: the base is provided with a supporting part and a filling cavity, and the supporting part is provided with a first through hole; the supporting part is fixedly connected with a pump body of the gear pump;
one end of the rotating shaft is fixedly connected with the center of a driving gear of the gear pump, and the other end of the rotating shaft is rotatably connected with the first through hole and penetrates through the filling cavity;
the distance sealing sleeve is sleeved on the rotating shaft and is positioned at the bottom of the filling cavity;
the packing is sleeved on the rotating shaft and abuts against the gauge sealing sleeve;
the gland can cover the filling cavity, abut against the filler and is fixedly connected with the base; the gland is provided with a second through hole, and the rotating shaft is rotatably connected with the second through hole.
2. A gear pump packing seal as claimed in claim 1, wherein: the other end of the rotating shaft is connected with an output shaft of the motor through a coupler.
3. A gear pump packing seal as claimed in claim 1, wherein: and a groove is formed in the inner ring surface of the distance sealing sleeve.
4. A gear pump packing seal as claimed in claim 1, wherein: the clearance between the inner ring surface of the distance sealing sleeve and the rotating shaft is 0.2mm, and the clearance tolerance is +/-0.1 mm.
5. A gear pump packing seal as claimed in claim 1, wherein: the gauge seal sleeve is made of stainless steel.
6. A gear pump packing seal as claimed in claim 1, wherein: the filler is made of tetrafluoro material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020111835.5U CN212028049U (en) | 2020-01-17 | 2020-01-17 | Gear pump packing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020111835.5U CN212028049U (en) | 2020-01-17 | 2020-01-17 | Gear pump packing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212028049U true CN212028049U (en) | 2020-11-27 |
Family
ID=73485964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020111835.5U Active CN212028049U (en) | 2020-01-17 | 2020-01-17 | Gear pump packing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212028049U (en) |
-
2020
- 2020-01-17 CN CN202020111835.5U patent/CN212028049U/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: 350200 Binhai Industrial Zone, Changle District, Fuzhou City, Fujian Province Patentee after: Fujian Hengshen Synthetic Fiber Technology Co.,Ltd. Country or region after: China Address before: 350218 Binhai Industrial Zone, Changle City, Fuzhou City, Fujian Province Patentee before: CHANGLE HENGSHEN SYNTHETIC FIBER Co.,Ltd. Country or region before: China |