CN115638105A - Gear pump capable of improving axial force balance - Google Patents
Gear pump capable of improving axial force balance Download PDFInfo
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- CN115638105A CN115638105A CN202211667819.4A CN202211667819A CN115638105A CN 115638105 A CN115638105 A CN 115638105A CN 202211667819 A CN202211667819 A CN 202211667819A CN 115638105 A CN115638105 A CN 115638105A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 56
- 239000000945 filler Substances 0.000 claims abstract description 35
- 238000012856 packing Methods 0.000 claims abstract description 24
- 230000001276 controlling effect Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 17
- 238000007789 sealing Methods 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000006978 adaptation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to the technical field of gear pumps, in particular to a gear pump for improving axial force balance, which comprises a hydraulic gear pump, wherein a packing plugging component is arranged on the right front side inside the hydraulic gear pump and corresponds to a transmission shaft, and an axial balance positioning component is arranged inside the hydraulic gear pump and positioned on the upper side of the packing plugging component; the filling and plugging filler of the filler square tube and the positioning hoop can be realized through the filler conveying pipe, so that the switching positioning effect between the positioning hoop and the transmission shaft is good, and the positioning stability of the transmission shaft during working can be effectively improved; through bulldozing square pipe, bulldozing the board and bulldozing the inside filler of filler side pipe, make the filler in the location armful all the time be connected with the transmission shaft laminating, make the transmission shaft axial balance location effect at the operation in-process good, bulldoze the in-process telescopic link shrink at the board that bulldozes, the flexible inner rod in the telescopic link is pressed pressure sensors, makes filler side pipe and location armful to pack the wearing and tearing state monitoring simple and convenient.
Description
Technical Field
The invention relates to the technical field of gear pumps, in particular to a gear pump capable of improving axial force balance.
Background
When the hydraulic gear pump is installed, the base or the bracket has enough rigidity, so that the hydraulic gear pump can not bear other forces except the torsional force generated by the rotation of the shaft in principle; the different axial degrees between the connecting shafts are not more than 0.05mm; the hydraulic gear pump should operate according to the rotational direction of demarcation, pay attention to the oil inlet and outlet position, and the macropore is the oil inlet. A safety valve and a vast device must be arranged in a hydraulic system, an oil tank must be dustproof to prevent debris such as silt from entering oil and is cleaned regularly, an oil suction pipeline is as short as possible and generally not more than 500mm, elbows are used as few as possible, and the phenomenon of air leakage of the oil pipeline cannot occur. The drive shaft of the pump is not allowed to withstand radial and axial forces.
The patent publication No. CN213450825U discloses a movable gear pump, and the patent technology is characterized in that a filter screen is arranged between an installation sleeve and a gear pump shell and is opposite to a liquid inlet, so that when liquid enters the liquid inlet, impurities in the liquid are filtered through the filter screen, and the liquid is smooth; thirdly, the liquid outlet is arranged on the other side wall of the gear pump shell and is opposite to the liquid inlet, so that the liquid can enter from the liquid inlet, and the liquid passes through the gear pump shell; thirdly, one end of the liquid outlet pipe is embedded into the liquid outlet, and the liquid outlet pipe is communicated with the liquid outlet, so that liquid is discharged from the liquid outlet pipe through the liquid outlet; and thirdly, the four universal rollers are connected with the bottom plate so as to realize that the product can move in any direction and improve the use experience of the product. However, in this solution, when the transmission shaft is used for a long time, axial vibration force may occur to the transmission shaft, so that the transmission shaft loses axial balance, and the hydraulic gear pump is damaged, and therefore a gear pump with improved axial force balance is needed to improve the above problems.
Disclosure of Invention
The present invention is directed to a gear pump with improved axial force balance to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a gear pump for improving axial force balance comprises a hydraulic gear pump, wherein a loading shaft is arranged on the left side of a cavity of the hydraulic gear pump, a first rotating gear is installed on the loading shaft, a transmission shaft is installed on the right side of the cavity of the hydraulic gear pump, a second rotating gear is installed on the transmission shaft, a sealing gasket is correspondingly arranged in the inner cavity of the hydraulic gear pump and behind the front sides of the first rotating gear and the second rotating gear, the front end of the transmission shaft is rotatably connected with an end cover of the hydraulic gear pump through a positioning bearing, a packing sealing assembly is correspondingly arranged on the right front side of the inner part of the hydraulic gear pump and on the transmission shaft, and an axial balance positioning assembly is arranged in the hydraulic gear pump and on the upper side of the packing sealing assembly;
the filler plugging assembly comprises a positioning hoop, a filler square tube is arranged on the upper side of the positioning hoop, and a filler conveying pipe is arranged on the side surface of the filler square tube;
axial balance locating component is including installing the case that loads on the hydraulic gear pump, the internally mounted who loads the case has the dress frame of holding, it installs the dress axle to hold to rotate on the dress frame, it is provided with first drive gear to hold the epaxial end of dress, the other end of dress axle is provided with second drive gear, it installs the threaded rod to rotate and be located the preceding downside that holds the dress axle to hold on the dress frame, the upper end of threaded rod corresponds the regulation and control gear that is provided with the looks adaptation with second drive gear, the lower extreme screw thread of threaded rod installs the section of thick bamboo that bulldozes of looks adaptation, the downside that loads the case corresponds with the section of thick bamboo that bulldozes and is provided with the guide cylinder, seted up the spacing groove on the guide cylinder, the tip that loads the case is provided with the positioning seat, be provided with the regulation and control axle on the positioning seat, the lower extreme of regulation and control axle is provided with the drive gear with first drive gear adaptation, the lower extreme that bulldozes a section of thick bamboo is provided with and bulldozes, the lower extreme that bulldozes the side pipe is provided with the joint board, the downside of joint board of linking board is provided with the positioning disk, the downside of going up the positioning disk is provided with the telescopic link, the lower extreme that pushes away is provided with the pressure induction of reset spring is provided with the lower extreme.
As a preferable mode of the present invention, the first rotation gear and the second rotation gear are correspondingly engaged and engaged.
As the preferable scheme of the invention, the plugging gasket is correspondingly provided with a transfer groove with a loading shaft and a transmission shaft, and the loading shaft, the transmission shaft and the plugging gasket are in clearance fit and rotary connection.
As the preferable scheme of the invention, the positioning hooping is arranged in a circular structure matched with the transmission shaft, and the positioning hooping is correspondingly and rotatably connected with the transmission shaft.
As a preferable scheme of the invention, the inner side wall of the positioning hoop is provided with a filler cavity, and the filler square tube is communicated with the positioning hoop.
As a preferable scheme of the invention, a limiting rod matched with the limiting groove is arranged on the upper side surface of the pushing cylinder.
As a preferable scheme of the present invention, the threaded rod is provided in a hollow structure, and a display is provided on a side surface of the loading box.
As a preferable aspect of the present invention, the pressure sensor is connected to the display through a power line.
In a preferred embodiment of the present invention, the pressing square tube and the pressing plate are disposed to fit the inner cavity of the packing square tube.
As a preferable scheme of the present invention, a locking knob is disposed on a side surface of the positioning seat corresponding to the control shaft.
The device can ensure that the filler is always attached and connected with the transmission shaft, so that the axial balance positioning effect of the transmission shaft in the operation process is good.
According to the invention, the telescopic rod is contracted in the pushing and pressing process of the pushing and pressing plate, and the telescopic inner rod in the telescopic rod presses the pressure sensor, so that the filler square tube and the positioning hoops can simply and conveniently monitor the wear state of the filler; can realize restoring to the throne to the flexible of telescopic link through reset spring, when filler side's pipe and the inside filler consumption of location armful ring are more serious, make the flexible interior pole in the telescopic link to the pressure reduction of pressure sensors, make the axial positioning regulation and control of transmission shaft in time, improve the axial balance location effect of transmission shaft.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a hydraulic gear pump of the present invention;
FIG. 3 is a schematic diagram of a portion of the hydraulic gear pump of the present invention;
FIG. 4 is a schematic structural view of a packing block assembly of the present invention;
FIG. 5 is a schematic view of an axial balance positioning assembly of the present invention;
FIG. 6 is a first schematic view of a portion of the balanced axial positioning assembly of the present invention;
FIG. 7 is a second schematic view of a portion of the axial balance positioning assembly of the present invention;
fig. 8 is a third structural schematic diagram of the axial balance positioning assembly of the present invention.
In the figure: 1. a hydraulic gear pump; 101. a loading shaft; 102. a first rotating gear; 103. a drive shaft; 104. a second rotating gear; 105. plugging the gasket; 106. positioning the bearing; 2. a filler plugging component; 201. positioning the embracing ring; 202. a filler square tube; 203. a filler conveying pipe; 204. a packing cavity; 3. an axial balance positioning assembly; 301. a loading bin; 302. a bearing frame; 303. bearing and installing a shaft; 304. a first drive gear; 305. a second transmission gear; 306. a threaded rod; 307. regulating and controlling a gear; 308. pushing the cylinder; 309. a guide cylinder; 310. a limiting groove; 311. positioning seats; 312. a regulating shaft; 313. a drive gear; 314. pushing and pressing the square pipe; 315. a connector tile; 316. an upper positioning plate; 317. a telescopic rod; 318. a lower positioning plate; 319. a return spring; 320. a pressure sensor; 321. a push plate; 322. a display; 323. and a locking knob.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example (b): please refer to fig. 1-8, which illustrates a gear pump for improving axial force balance, and includes a hydraulic gear pump 1, a loading shaft 101 is disposed on the left side of a cavity of the hydraulic gear pump 1, a first rotating gear 102 is mounted on the loading shaft 101, a transmission shaft 103 is mounted on the right side of the cavity of the hydraulic gear pump 1, a second rotating gear 104 is mounted on the transmission shaft 103, a sealing gasket 105 is correspondingly disposed in the inner cavity of the hydraulic gear pump 1 and behind the front sides of the first rotating gear 102 and the second rotating gear 104, the front end of the transmission shaft 103 is rotatably connected to an end cover of the hydraulic gear pump 1 by a positioning bearing 106, a packing sealing assembly 2 is correspondingly disposed on the right front side of the interior of the hydraulic gear pump 1 and on the upper side of the packing sealing assembly 2, and an axial balance positioning assembly 3 is disposed in the interior of the hydraulic gear pump 1 and on the upper side of the packing sealing assembly 2; the first rotating gear 102 and the second rotating gear 104 are correspondingly matched and meshed, the plugging pad 105 is provided with a transfer groove corresponding to the loading shaft 101 and the transmission shaft 103, and the loading shaft 101, the transmission shaft 103 and the plugging pad 105 are in clearance fit and rotating connection. Hydraulic oil in the hydraulic gear pump 1 can be effectively prevented from entering the gear cavity through the plugging gasket 105, so that the protection effect of the first rotating gear 102 and the second rotating gear 104 during working is good, and the use effect of the hydraulic gear pump 1 is good.
In this embodiment, the packing plugging assembly 2 includes a positioning hoop 201, a packing square pipe 202 is arranged on the upper side of the positioning hoop 201, and a packing conveying pipe 203 is installed on the side surface of the packing square pipe 202; the filling and plugging filler of the filler square pipe 202 and the positioning hoop 201 can be realized through the filler conveying pipe 203, so that the switching positioning effect between the positioning hoop 201 and the transmission shaft 103 is good, and the positioning stability of the transmission shaft 103 during working can be effectively improved.
The positioning hoop 201 is of a circular structure matched with the transmission shaft 103, the positioning hoop 201 is connected with the transmission shaft 103 in a rotating mode, a packing cavity 204 is formed in the inner side wall of the positioning hoop 201, and the packing square pipe 202 is communicated with the positioning hoop 201. Embrace through the location and encircle 201 adopt with the "circular" structure setting of transmission shaft 103 looks adaptation to it has seted up filler cavity 204 and can make the spacing filler of shutoff better laminate with transmission shaft 103 and be connected to encircle 201 last the location, thereby makes location embrace that encircle 201 is effectual to the location of transmission shaft 103.
In this embodiment, the axial balance positioning assembly 3 includes a loading box 301 mounted on the hydraulic gear pump 1, a bearing frame 302 is mounted inside the loading box 301, a bearing shaft 303 is rotatably mounted on the bearing frame 302, a first transmission gear 304 is disposed at the upper end of the bearing shaft 303, a second transmission gear 305 is disposed at the other end of the bearing shaft 303, and a threaded rod 306 is rotatably mounted on the bearing frame 302 and located at the front lower side of the bearing shaft 303. The upper end of the threaded rod 306 is provided with a matched regulating gear 307 corresponding to the second transmission gear 305, and the lower end of the threaded rod 306 is provided with a matched pushing cylinder 308 in a threaded manner; the lower side of the loading box 301 is provided with a guide cylinder 309 corresponding to the pushing cylinder 308, the guide cylinder 309 is provided with a limit groove 310, the end of the loading box 301 is provided with a positioning seat 311, the positioning seat 311 is provided with a regulating shaft 312, and the lower end of the regulating shaft 312 is provided with a driving gear 313 matched with the first transmission gear 304.
A pushing square pipe 314 is arranged at the lower end of the pushing cylinder 308, a connecting plate 315 is arranged at the lower end of the pushing square pipe 314, an upper positioning disc 316 is arranged on the lower side surface of the connecting plate 315, and a telescopic rod 317 is arranged on the lower side of the upper positioning disc 316; the lower end of the telescopic rod 317 is provided with a lower positioning plate 318, the outer side of the telescopic rod 317 is sleeved with a return spring 319 which is positioned between the upper positioning plate 316 and the lower positioning plate 318, the upper side inside the outer cylinder of the telescopic rod 317 is provided with a pressure sensor 320, and the lower end of the lower positioning plate 318 is provided with a pushing plate 321.
The driving gear 313 is rotationally regulated and controlled through the regulating and controlling shaft 312, the first transmission gear 304, the bearing shaft 303 and the second transmission gear 305 rotate along with each other, the threaded rod 306 rotates under the action of the second transmission gear 305 to enable the pushing and controlling cylinder 308 to perform displacement regulation and control, the pushing and controlling square pipe 314 and the pushing and controlling plate 321 push and control the filler in the filler square pipe 202 under the action of the pushing and controlling cylinder 308, the filler in the positioning hoop 201 is always attached and connected with the transmission shaft 103, and the axial balance positioning effect of the transmission shaft 103 in the operation process is good. Bulldoze the in-process telescopic link 317 shrink at bulldozing board 321, flexible inner boom in the telescopic link 317 is pressed pressure sensors 320, it is simple and convenient to make filler side's pipe 202 and location embrace ring 201 to the monitoring of filler wearing and tearing state, can realize reseing to telescopic link 317's flexible through reset spring 319, when filler side's pipe 202 and the inside filler consumption of location embrace ring 201 are more serious, make the flexible inner boom in the telescopic link 317 to pressure sensors 320 pressure reduction, make the axial positioning regulation and control of transmission shaft 103 in time, improve the axial balance location effect of transmission shaft 103.
The upper side surface of the pushing cylinder 308 is provided with a limiting rod matched with the limiting groove 310, the threaded rod 306 is arranged in a hollow structure, the side surface of the loading box 301 is provided with a display 322, and the pressure sensor 320 is connected with the display 322 through a power line. Adopt hollow structure to set up through threaded rod 306, can make the connection winding displacement between pressure sensors 320 and the display 322 effectual, can make through gag lever post and spacing groove 310 bulldoze a section of thick bamboo 308, bulldoze square pipe 314 slide positioning stability height.
The pushing square tube 314 and the pushing plate 321 are arranged in a manner of being matched with the inner cavity of the packing square tube 202, and the side surface of the positioning seat 311 is provided with a locking knob 323 corresponding to the adjusting shaft 312. The positioning stability of the control shaft 312 can be improved by the lock knob 323, and the positioning stability of the pressing cylinder 308 and the pressing square tube 314 can be improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an improve balanced gear pump of axial force, includes hydraulic gear pump (1), its characterized in that: a loading shaft (101) is arranged on the left side of a cavity of the hydraulic gear pump (1), a first rotating gear (102) is mounted on the loading shaft (101), a transmission shaft (103) is mounted on the right side of the cavity of the hydraulic gear pump (1), a second rotating gear (104) is mounted on the transmission shaft (103), a blocking gasket (105) is correspondingly arranged in the inner cavity of the hydraulic gear pump (1) and behind the front sides of the first rotating gear (102) and the second rotating gear (104), the front end of the transmission shaft (103) is rotationally connected with an end cover of the hydraulic gear pump (1) by a positioning bearing (106), a packing blocking assembly (2) is correspondingly arranged on the right front side of the inner part of the hydraulic gear pump (1) and the transmission shaft (103), and an axial balance positioning assembly (3) is arranged in the hydraulic gear pump (1) and on the upper side of the packing blocking assembly (2);
the axial balance positioning assembly (3) comprises a loading box (301) arranged on a hydraulic gear pump (1), a bearing frame (302) is arranged inside the loading box (301), a bearing shaft (303) is rotatably arranged on the bearing frame (302), and a first transmission gear (304) is arranged at the upper end of the bearing shaft (303); a second transmission gear (305) is arranged at the other end of the bearing shaft (303), a threaded rod (306) is rotatably mounted on the bearing frame (302) and positioned at the front lower side of the bearing shaft (303), and a regulating gear (307) matched with the second transmission gear (305) is correspondingly arranged at the upper end of the threaded rod (306);
a pushing cylinder (308) matched with the threaded rod (306) is installed at the lower end of the threaded rod in a threaded manner, a guide cylinder (309) is arranged on the lower side of the loading box (301) and corresponds to the pushing cylinder (308), a limiting groove (310) is formed in the guide cylinder (309), a positioning seat (311) is arranged at the end part of the loading box (301), an adjusting and controlling shaft (312) is arranged on the positioning seat (311), and a driving gear (313) matched with the first transmission gear (304) is arranged at the lower end of the adjusting and controlling shaft (312);
the lower extreme that pushes away a pressure section of thick bamboo (308) is provided with and bulldozes square pipe (314), the lower extreme that bulldozes square pipe (314) is provided with connection plate (315), the downside of connection plate (315) is provided with positioning disk (316), the downside of going up positioning disk (316) is provided with telescopic link (317), the lower extreme of telescopic link (317) is provided with down positioning disk (318), the outside of telescopic link (317) has cup jointed reset spring (319) and is located positioning disk (316), down between positioning disk (318), the inside upside of urceolus of telescopic link (317) is provided with pressure sensors (320), the lower extreme of lower positioning disk (318) is provided with and bulldozes board (321).
2. Gear pump for improving the axial force balance according to claim 1, characterized in that: the packing plugging component (2) comprises a positioning hoop (201), a packing square pipe (202) is arranged on the upper side of the positioning hoop (201), and a packing conveying pipe (203) is mounted on the side surface of the packing square pipe (202);
the first rotating gear (102) and the second rotating gear (104) are correspondingly matched and meshed.
3. Gear pump for improving the axial force balance according to claim 1, characterized in that: the plugging gasket (105) is correspondingly provided with a transfer groove with the loading shaft (101) and the transmission shaft (103), and the loading shaft (101), the transmission shaft (103) and the plugging gasket (105) are in clearance fit and rotary connection.
4. The gear pump of claim 2, wherein: the positioning hooping ring (201) is arranged in a circular structure matched with the transmission shaft (103), and the positioning hooping ring (201) is correspondingly and rotatably connected with the transmission shaft (103); the inner side wall of the positioning hoop (201) is provided with a filler cavity (204), and the filler square tube (202) is communicated with the positioning hoop (201).
5. The gear pump of claim 1, wherein: the upper side surface of the pushing cylinder (308) is provided with a limiting rod matched with the limiting groove (310); the threaded rod (306) is arranged in a hollow structure, and a display (322) is arranged on the side face of the loading box (301).
6. The gear pump of claim 2, wherein: the pushing square pipe (314) and the pushing plate (321) are arranged in a manner of being matched with the inner cavity of the packing square pipe (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211667819.4A CN115638105B (en) | 2022-12-24 | 2022-12-24 | Gear pump capable of improving axial force balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211667819.4A CN115638105B (en) | 2022-12-24 | 2022-12-24 | Gear pump capable of improving axial force balance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115638105A true CN115638105A (en) | 2023-01-24 |
| CN115638105B CN115638105B (en) | 2023-04-11 |
Family
ID=84949821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211667819.4A Active CN115638105B (en) | 2022-12-24 | 2022-12-24 | Gear pump capable of improving axial force balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115638105B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4737087A (en) * | 1984-12-10 | 1988-04-12 | Barmag Ag | Drive shaft seal for gear pump and method |
| CN108331550A (en) * | 2018-03-07 | 2018-07-27 | 贾广生 | A kind of polish rod sealing for not having to replace sealing element |
| CN109340378A (en) * | 2018-11-12 | 2019-02-15 | 中国船舶重工集团公司第七〇九研究所 | A kind of automatic impaction stuffing seal |
| CN111550557A (en) * | 2020-05-11 | 2020-08-18 | 山东省章丘鼓风机股份有限公司 | Electric compression packing sealing device and control method thereof |
| CN214145437U (en) * | 2020-12-18 | 2021-09-07 | 大庆因你美丽机械设备制造有限公司 | Intelligent wellhead sealing device |
-
2022
- 2022-12-24 CN CN202211667819.4A patent/CN115638105B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4737087A (en) * | 1984-12-10 | 1988-04-12 | Barmag Ag | Drive shaft seal for gear pump and method |
| CN108331550A (en) * | 2018-03-07 | 2018-07-27 | 贾广生 | A kind of polish rod sealing for not having to replace sealing element |
| CN109340378A (en) * | 2018-11-12 | 2019-02-15 | 中国船舶重工集团公司第七〇九研究所 | A kind of automatic impaction stuffing seal |
| CN111550557A (en) * | 2020-05-11 | 2020-08-18 | 山东省章丘鼓风机股份有限公司 | Electric compression packing sealing device and control method thereof |
| CN214145437U (en) * | 2020-12-18 | 2021-09-07 | 大庆因你美丽机械设备制造有限公司 | Intelligent wellhead sealing device |
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| Publication number | Publication date |
|---|---|
| CN115638105B (en) | 2023-04-11 |
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Effective date of registration: 20230614 Address after: 230000 Factory Building 1 # at the southwest corner of the intersection of Fangxing Avenue and Dabieshan Road in Hefei High tech Zone, Anhui Province Patentee after: Anhui Wanye Technology Co.,Ltd. Address before: No. 260, Hangbu Road, Hefei Economic and Technological Development Zone, Anhui 231299 Patentee before: HEFEI WANYE HYDRAULIC COMPONENT Co.,Ltd. |
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Effective date of registration: 20240306 Address after: 230000 No. 260, Hangbu Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: HEFEI WANYE HYDRAULIC COMPONENT Co.,Ltd. Country or region after: China Address before: 230000 Factory Building 1 # at the southwest corner of the intersection of Fangxing Avenue and Dabieshan Road in Hefei High tech Zone, Anhui Province Patentee before: Anhui Wanye Technology Co.,Ltd. Country or region before: China |
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