CN116816783A - Connection structure and connection method of main rod of three-screw pump - Google Patents
Connection structure and connection method of main rod of three-screw pump Download PDFInfo
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- CN116816783A CN116816783A CN202310520090.6A CN202310520090A CN116816783A CN 116816783 A CN116816783 A CN 116816783A CN 202310520090 A CN202310520090 A CN 202310520090A CN 116816783 A CN116816783 A CN 116816783A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 26
- 230000000087 stabilizing effect Effects 0.000 claims description 43
- 230000008093 supporting effect Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
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Abstract
The invention discloses a connecting structure of a main rod of a three-screw pump and a connecting method thereof, and relates to the technical field of connection of three-screw main rods. This connection structure of three screw pump main bars is through first stable cover and the connection support of second stable cover to initiative screw rod to further promoted holding power through the stabilizer bar, the locating shaft is connected with the connecting axle of initiative screw rod one end simultaneously, thereby has realized increasing the connected mode of mobile jib and pump machine, increases the connection structure to the mobile jib support on both junction pump machine or mobile jib, increases the bearing capacity of mobile jib equally.
Description
Technical Field
The invention relates to the technical field of connection of three-screw main rod, in particular to a connection structure and a connection method of a three-screw pump main rod.
Background
The three-screw pump is the most productive of screw pumps, is a common positive displacement rotor pump, the three-screw pump mainly comprises a driving screw connected with an electric motor, two driven screws matched with the driving screw and a pump sleeve fixed in a pump body, three intermeshing screws form a sealing cavity in the pump sleeve according to each lead, sealing between a suction port and a discharge port is caused, along with rotation and engagement of the screws, the sealing spaces are continuously formed at a suction port of the pump, media entering the suction port are sealed in the sealing spaces, and the media are continuously pushed to the discharge end along the axial direction from the suction port, so that the media sealed in each space are continuously discharged. The principle of the three-screw pump shows that the flow of the pump is stable, the medium does not form vortex and is insensitive to the viscosity of the medium, and the medium with high viscosity can be conveyed.
However, in the prior art, because the engineering three-screw pump has complex working conditions, if the medium discharged from the discharge port is not smooth, the pressure in the pump is increased, and the mechanical seal and the pump body component of the pump are potentially threatened, so that the mechanical seal is easily damaged, and the pump leaks, therefore, the main rod structure and the bearable pressure of the pump have important relation to the service life of the pump.
So we propose a connection structure of a main rod of a three-screw pump and a connection method thereof so as to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a connecting structure and a connecting method of a main rod of a three-screw pump, which are used for solving the problems that if a medium discharged from a discharge port is not smooth, the pressure in the pump is increased and potential threats are caused to mechanical sealing and a pump body assembly of the pump in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a connection structure of three screw pump main bars, includes the screw pump, the inboard of screw pump is provided with the initiative screw rod, the both ends of initiative screw rod all are connected with stable subassembly, the both ends of screw pump are provided with quick detach subassembly, the one end of initiative screw rod is connected with the stabilizer bar, the one end of stabilizer bar is connected with first stable cover, the other end of stabilizer bar is provided with the second and stabilizes the cover, the one end of initiative screw rod is all located to first stable cover and the equal cover of second, the other end of initiative screw rod is connected with the positioning disk, the side of positioning disk is connected with the spacer sleeve, the constant head tank has been seted up to the inboard of spacer sleeve, the side of positioning disk is connected with the locating shaft, the connecting axle is installed to the one end of initiative screw rod, the locating hole has been seted up to the one end of locating shaft is connected with the inboard of locating hole.
Preferably, one end of the screw pump is connected with a front cover, the other end of the screw pump is provided with a rear cover, the outer sides of the front cover and the rear cover are uniformly provided with a plurality of quick-release threaded sleeves, and the inner side of the front cover is provided with a bearing seat.
Preferably, the first limiting grooves are formed in the two ends of the first stabilizing sleeve, a first limiting ring is connected to the inner side of the first limiting groove, a clamping block is mounted in the middle of the stabilizing rod, and the outer side of the clamping block is connected with the inner wall of one end of the screw pump.
Preferably, the second limiting grooves are formed in the two ends of the second stabilizing sleeve, the inner sides of the second limiting grooves are connected with second limiting rings, and the second limiting rings are sleeved on the outer wall of one end of the driving screw.
Preferably, the inner side of the quick-release screw sleeve is connected with a quick-release bolt in a threaded manner, and one end of the quick-release bolt is connected with two ends of the screw pump in a threaded manner.
Preferably, one end of the front cover is fixedly connected with a mechanical seal, one end of the driving screw is connected with a mechanical seal end cover, and the mechanical seal is connected with the mechanical seal end cover.
Preferably, the outer wall of the positioning disk is uniformly provided with a plurality of fixing support plates, and one ends of the fixing support plates are fixedly connected to the inner side of the rear cover.
Preferably, the outside of screw pump is provided with the casing, the outside of initiative screw rod is provided with driven screw rod, driven screw rod sets up the inboard at the casing, the one end of initiative screw rod is provided with the bearing.
The application method of the connecting structure of the main rod of the three-screw pump comprises the following steps:
s1, firstly, a first limiting ring and a second limiting ring are connected with a first stabilizing sleeve and a second stabilizing sleeve at two ends of a stabilizing rod respectively, and the first limiting ring and the second limiting ring are embedded into the inner sides of a first limiting groove and a second limiting groove respectively.
S2, the first stabilizing sleeve and the second stabilizing sleeve are sleeved at one end of the driving screw, and the first limiting ring and the second limiting ring are tightly pressed on the outer wall of one end of the driving screw.
S3, clamping blocks are distributed and connected to the middle of the outer side of the stabilizer bar, and the clamping blocks are fixedly connected to one end of the shell and are connected with the clamping blocks in a clamping mode through the stabilizer bar.
S4, the other end of the driving screw rod is connected with the positioning shaft in an embedded mode through the connecting shaft, meanwhile, the outer side of the connecting shaft is embedded into the positioning groove, the positioning sleeve is used for sleeving, and meanwhile, the positioning disc and the fixing support plate are fixedly connected to the inner side of the rear cover.
S5, connecting and supporting the driving screw rod through the stabilizer bar and the positioning disc, and reinstalling the driving screw rod on the inner side of the shell.
S6, connecting the front cover with the rear cover through one end of the shell, connecting the rear cover with the two ends of the shell, connecting the front cover and the rear cover to the quick-release screw sleeve on the outer side of the front cover through quick-release bolts through threads, and connecting the quick-release bolts with the two ends of the shell to realize stable connection.
Compared with the prior art, the invention has the beneficial effects that:
1. through the setting of the stabilizing component, the first stabilizing sleeve and the second stabilizing sleeve at two ends of the stabilizing rod are connected with the first limiting ring and the second limiting ring, the first limiting ring and the second limiting ring are respectively embedded into the inner sides of the first limiting groove and the second limiting groove, then the first stabilizing sleeve and the second stabilizing sleeve are sleeved at one end of the driving screw, the first limiting ring and the second limiting ring are tightly pressed on the outer wall of one end of the driving screw, clamping blocks are distributed and connected in the middle of the outer side of the stabilizing rod, the clamping blocks are fixedly connected with one end of the shell, and the clamping blocks are connected with the clamping blocks through the stabilizing rod, so that the connecting support of the driving screw by the first stabilizing sleeve and the second stabilizing sleeve is facilitated, the supporting force is further improved through the stabilizing rod, meanwhile, the positioning shaft is connected with the connecting shaft at one end of the driving screw, the connecting mode of the main rod and the pumping machine is increased, the connecting structure for supporting the main rod is additionally arranged on the connecting position of the two pumping machines or the main rod, and the bearing capacity of the main rod is also increased;
2. through the setting of quick detach subassembly, through being connected with the protecgulum in the one end of casing, be connected through the back lid at the both ends rethread of casing, protecgulum and back lid are all through quick detach bolt threaded connection to on the quick detach swivel nut in its outside to be connected quick detach bolt and the both ends of casing, realize stable the connection, provide the connection structure of mobile jib holding power and have good dismouting structure, practice thrift the pump inner space when making master jib easy dismounting.
3. The improved main rod structure is used, so that the pump body leakage threshold pressure is increased to a certain extent, the pump body performance is improved, the service life of the pump body is prolonged, and the use cost of the three-screw pump is saved. The original driving screw is simple in structure, the pressure value in the pump can be less than or equal to 1.0MPa for the mechanical seal which can be used by the direct-connection main rod structure, the pressure value in the pump can be less than or equal to 3.0MPa for the mechanical seal which is used by the improved driving screw structure, the bearing pressure of the pump is greatly increased, and the usable working condition range of the three-screw pump of the same model is enlarged.
Drawings
FIG. 1 is a schematic perspective view of a pump with a connecting structure of a main rod of a three-screw pump according to the present invention;
FIG. 2 is a schematic view of another angular structure of a pump with a connecting structure of a main rod of a three-screw pump according to the present invention;
FIG. 3 is a schematic view showing the internal sectional structure of a connection structure of a main rod of a three-screw pump according to the present invention;
FIG. 4 is a perspective view showing the structure of a main rod portion of a connecting structure of a main rod of a three-screw pump according to the present invention;
FIG. 5 is a schematic structural view of a stabilizing assembly of the connecting structure of the main rod of the three-screw pump according to the present invention;
FIG. 6 is a schematic illustration of a primary rod connector for a primary rod connection of a three-screw pump according to the present invention;
FIG. 7 is a schematic illustration of a primary rod connector for a primary rod connection of a three-screw pump according to the present invention;
FIG. 8 is a schematic structural view of a mounting assembly of a connection structure of a main rod of a three-screw pump according to the present invention;
fig. 9 is a schematic view of another angle of the installation assembly of the connection structure of the main rod of the three-screw pump according to the present invention.
In the figure:
1. a screw pump; 101. a housing; 102. a drive screw; 103. a driven screw; 104. a bearing; 105. a mechanical seal end cap; 106. a connecting shaft; 2. a stabilizing assembly; 201. a stabilizer bar; 202. a first stabilizing sleeve; 203. a first limit groove; 204. a first stop collar; 205. clamping blocks; 206. a second stabilizing sleeve; 207. the second limit groove; 208. a second limiting ring; 209. a positioning plate; 210. a positioning sleeve; 211. a positioning groove; 212. positioning a shaft; 213. a fixed supporting plate; 214. positioning holes; 3. a quick release assembly; 301. a front cover; 302. a bearing seat; 303. quick-dismantling the screw sleeve; 304. quick-dismantling bolts; 305. mechanical sealing; 306. and a rear cover.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-9, the present invention provides a technical solution: the utility model provides a connection structure of three screw pump main rod, including screw pump 1, the inboard of screw pump 1 is provided with initiative screw rod 102, the both ends of initiative screw rod 102 all are connected with stabilizing assembly 2, the both ends of screw pump 1 are provided with quick detach subassembly 3, the one end of initiative screw rod 102 is connected with stabilizer bar 201, the one end of stabilizer bar 201 is connected with first stabilizing sleeve 202, the other end of stabilizer bar 201 is provided with second stabilizing sleeve 206, the one end of initiative screw rod 102 is all overlapped to first stabilizing sleeve 202 and second stabilizing sleeve 206, the other end of initiative screw rod 102 is connected with positioning disk 209, the side of positioning disk 209 is connected with positioning sleeve 210, the constant head tank 211 has been seted up to the inboard of positioning sleeve 210, the side of positioning disk 209 is connected with locating shaft 212, connecting axle 106 is installed to one end of initiative screw rod 102, locating hole 214 has been seted up to one end of connecting axle 106, the one end of locating shaft 212 is connected with the inboard of locating hole 214, the first and second spacing rings 202 and 206 at two ends of the stabilizer bar 201 are connected with the first and second spacing rings 204 and 208, and respectively embedded into the inner sides of the first and second spacing grooves 203 and 207, then the first and second spacing rings 202 and 206 are sleeved at one end of the driving screw 102, and the first and second spacing rings 204 and 208 are pressed on the outer wall of one end of the driving screw 102, the middle part of the outer side of the stabilizer bar 201 is connected with the clamping block 205, the clamping block 205 is fixedly connected with one end of the shell 101, and the clamping block 205 is clamped and connected with the clamping block 205 through the stabilizer bar 201, thereby facilitating the connection and support of the driving screw 102 through the first and second spacing rings 202 and 206, further improving the supporting force through the stabilizer bar 201, simultaneously the positioning shaft 212 is connected with the connecting shaft 106 at one end of the driving screw 102, therefore, the connecting mode of the main rod and the pump is increased, the pump or the connecting structure for supporting the main rod is added at the joint of the main rod and the pump, and the bearing capacity of the main rod is also increased.
As shown in fig. 8 and 9, one end of the screw pump 1 is connected with a front cover 301, the other end of the screw pump 1 is provided with a rear cover 306, the outer sides of the front cover 301 and the rear cover 306 are evenly divided into a plurality of quick-release threaded sleeves 303, the inner side of the front cover 301 is provided with a bearing seat 302, one end of the shell 101 is connected with the front cover 301, two ends of the shell 101 are connected with the rear cover 306 through the rear cover 306, the front cover 301 and the rear cover 306 are both connected to the quick-release threaded sleeves 303 on the outer sides of the shell 101 through quick-release bolts 304 in a threaded manner, the quick-release bolts 304 are connected with two ends of the shell 101, stable connection is achieved, and a connecting structure providing main rod supporting force has a good dismounting structure, so that the main rod is convenient to dismount and mount, and space in the pump is saved.
As shown in fig. 5, the two ends of the first stabilizing sleeve 202 are provided with the first limiting grooves 203, the inner sides of the first limiting grooves 203 are connected with the first limiting rings 204, the middle part of the stabilizing rod 201 is provided with the clamping blocks 205, the outer sides of the clamping blocks 205 are connected with the inner wall of one end of the screw pump 1, and the first stabilizing sleeve 202 is limited and fixed through the limiting connection of the first limiting grooves 203 and the first limiting rings 204 so as to ensure the stability of the stabilizing sleeve 202, and meanwhile, the effect of quick disassembly is realized through the loosening of the first limiting rings 204 in the later period of convenience, the clamping blocks 205 can be used for effectively clamping and connecting, and meanwhile, the later period of convenience is brought to disassembly.
As shown in fig. 5, the two ends of the second stabilizing sleeve 206 are provided with second limiting grooves 207, the inner sides of the second limiting grooves 207 are connected with second limiting rings 208, the second limiting rings 208 are sleeved on the outer wall of one end of the driving screw 102, and effective limiting and fixing can be provided through the second limiting grooves 207 and the second limiting rings 208, and meanwhile, the later disassembly work is also facilitated.
As shown in fig. 8, the inner sides of the quick-release threaded sleeves 303 are both in threaded connection with quick-release bolts 304, one ends of the quick-release bolts 304 are in threaded connection with two ends of the screw pump 1, and the quick-release bolts 304 facilitate the fixed connection between the front cover 301 and the rear cover 306, and facilitate the detachment of the front end and the rear end in the later stage, so that the effective quick-release work is provided.
As shown in fig. 8, one end of the front cover 301 is fixedly connected with a mechanical seal 305, one end of the driving screw 102 is connected with a mechanical seal end cover 105, the mechanical seal 305 is connected with the mechanical seal end cover 105, the mechanical seal 305 can provide a mechanical seal effect, and the mechanical seal 305 is connected with the mechanical seal end cover 105 to realize a high-sealing connection effect, so that the connection tightness between the pump and the driving screw is improved, and the service life of the pump is prolonged.
As shown in fig. 6 and 7, the outer wall of the positioning plate 209 is uniformly provided with a plurality of fixing and supporting plates 213, one end of each fixing and supporting plate 213 is fixedly connected to the inner side of the rear cover 306, and the fixing and supporting effect can be realized through the fixing and supporting plates 213, so that the stability is improved.
As shown in fig. 3, the outside of the screw pump 1 is provided with a housing 101, the outside of the driving screw 102 is provided with a driven screw 103, the driven screw 103 is arranged on the inside of the housing 101, one end of the driving screw 102 is provided with a bearing 104, the effect of protection and installation can be provided on the outside through the housing 101, the effect of driven transmission can be provided through the driven screw 103, and the effect of rotation assistance can be provided through the bearing 104, thereby realizing the complete transmission effect of the main rod of the pump.
The application method of the connecting structure of the main rod of the three-screw pump comprises the following steps:
s1, first, the first and second stabilizer sleeves 202 and 206 at two ends of the stabilizer bar 201 are connected to the first and second stop rings 204 and 208, and are respectively embedded inside the first and second stop grooves 203 and 207.
S2, the first stabilizing sleeve 202 and the second stabilizing sleeve 206 are sleeved on one end of the driving screw 102, and the first limiting ring 204 and the second limiting ring 208 are pressed on the outer wall of one end of the driving screw 102.
S3, clamping blocks 205 are distributed and connected to the middle of the outer side of the stabilizer 201, and the clamping blocks 205 are fixedly connected to one end of the shell 101 and are connected with the clamping blocks 205 in a clamping mode through the stabilizer 201.
S4, the other end of the driving screw 102 is connected with the positioning shaft 212 in an embedded way through the connecting shaft 106, meanwhile, the outer side of the connecting shaft 106 is embedded into the positioning groove 211 and sleeved by the positioning sleeve 210, and meanwhile, the positioning disc 209 and the fixing support plate 213 are fixedly connected to the inner side of the rear cover 306.
S5, the driving screw 102 is supported through the connection of the stabilizer 201 and the positioning disk 209, and is mounted on the inner side of the shell 101.
S6, then, connecting with the front cover 301 at one end of the shell 101, connecting with the rear cover 306 at two ends of the shell 101, connecting the front cover 301 and the rear cover 306 to the quick-release screw sleeve 303 at the outer side of the front cover 301 and the rear cover 306 through quick-release bolts 304 in a threaded manner, and connecting the quick-release bolts 304 with two ends of the shell 101 to realize stable connection.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The utility model provides a connection structure of three screw pump main bars, includes screw pump (1), its characterized in that: the inside of screw pump (1) is provided with initiative screw rod (102), the both ends of initiative screw rod (102) all are connected with stabilizing assembly (2), the both ends of screw pump (1) are provided with quick detach subassembly (3), the one end of initiative screw rod (102) is connected with stabilizer bar (201), the one end of stabilizer bar (201) is connected with first stable cover (202), the other end of stabilizer bar (201) is provided with second stable cover (206), the one end of initiative screw rod (102) is all located to first stable cover (202) and second stable cover (206) cover, the other end of initiative screw rod (102) is connected with positioning disk (209), the side of positioning disk (209) is connected with positioning sleeve (210), constant head tank (211) have been seted up to the inboard of positioning disk (209), connecting axle (106) are installed to the one end of initiative screw rod (102), locating hole (214) have been seted up to the one end of connecting axle (106), one end of positioning axle (212) is connected with locating hole (214).
2. The connection structure of a three-screw pump main rod according to claim 1, characterized in that: one end of the screw pump (1) is connected with a front cover (301), a rear cover (306) is arranged at the other end of the screw pump (1), a plurality of quick-release threaded sleeves (303) are evenly distributed on the outer sides of the front cover (301) and the rear cover (306), and a bearing seat (302) is arranged on the inner side of the front cover (301).
3. The connection structure of a three-screw pump main rod according to claim 1, characterized in that: the two ends of the first stabilizing sleeve (202) are respectively provided with a first limit groove (203), the inner sides of the first limit grooves (203) are connected with first limit rings (204), the middle part of the stabilizing rod (201) is provided with clamping blocks (205), and the outer sides of the clamping blocks (205) are connected with the inner wall of one end of the screw pump (1).
4. The connection structure of a three-screw pump main rod according to claim 1, characterized in that: second spacing groove (207) have been seted up at the both ends of second stable cover (206), the inboard of second spacing groove (207) all is connected with second spacing ring (208), second spacing ring (208) cover is established at the one end outer wall of initiative screw rod (102).
5. The connection structure of the main rod of the three-screw pump according to claim 2, characterized in that: the inner side of the quick-release screw sleeve (303) is connected with a quick-release bolt (304) in a threaded manner, and one end of the quick-release bolt (304) is connected with two ends of the screw pump (1) in a threaded manner.
6. The connection structure of the main rod of the three-screw pump according to claim 2, characterized in that: one end of the front cover (301) is fixedly connected with a mechanical seal (305), one end of the driving screw (102) is connected with a mechanical seal end cover (105), and the mechanical seal (305) is connected with the mechanical seal end cover (105).
7. The connection structure of the main rod of the three-screw pump according to claim 2, characterized in that: the outer wall of positioning disk (209) evenly distributed has a plurality of solid fagging (213), the one end fixed connection of solid fagging (213) is in the inboard of back lid (306).
8. The connection structure of a three-screw pump main rod according to claim 1, characterized in that: the screw pump is characterized in that a shell (101) is arranged on the outer side of the screw pump (1), a driven screw (103) is arranged on the outer side of the driving screw (102), the driven screw (103) is arranged on the inner side of the shell (101), and a bearing (104) is arranged at one end of the driving screw (102).
9. A method of using a connection structure for a three-screw pump main rod, characterized in that a connection structure for a three-screw pump main rod according to any one of claims 1 to 8 is used, comprising the steps of:
s1, firstly, connecting a first limiting ring (204) and a second limiting ring (208) through a first stabilizing sleeve (202) and a second stabilizing sleeve (206) at two ends of a stabilizing rod (201), and respectively embedding the first limiting ring and the second limiting ring into the inner sides of a first limiting groove (203) and a second limiting groove (207);
s2, sleeving a first stabilizing sleeve (202) and a second stabilizing sleeve (206) at one end of the driving screw (102), and pressing a first limiting ring (204) and a second limiting ring (208) on the outer wall of one end of the driving screw (102);
s3, clamping blocks (205) are distributed and connected to the middle of the outer side of the stabilizer bar (201), and the clamping blocks (205) are fixedly connected to one end of the shell (101) and are connected with the clamping blocks (205) in a clamping manner through the stabilizer bar (201);
s4, the other end of the driving screw (102) is connected with a positioning shaft (212) in an embedded mode through a connecting shaft (106), the outer side of the connecting shaft (106) is embedded into the positioning groove (211) and sleeved by a positioning sleeve (210), and meanwhile, a positioning disc (209) and a fixing support plate (213) are fixedly connected to the inner side of a rear cover (306);
s5, connecting and supporting the driving screw (102) through the stabilizer bar (201) and the positioning disc (209), and reinstalling the driving screw on the inner side of the shell (101);
s6, connecting the shell (101) with the front cover (301) at one end, connecting the shell (101) at two ends through the rear cover (306), connecting the front cover (301) and the rear cover (306) to the quick-release screw sleeve (303) at the outer side of the shell through the quick-release screw bolt (304) in a threaded manner, and connecting the quick-release screw bolt (304) with the two ends of the shell (101) to realize stable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310520090.6A CN116816783A (en) | 2023-05-10 | 2023-05-10 | Connection structure and connection method of main rod of three-screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310520090.6A CN116816783A (en) | 2023-05-10 | 2023-05-10 | Connection structure and connection method of main rod of three-screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116816783A true CN116816783A (en) | 2023-09-29 |
Family
ID=88124908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310520090.6A Pending CN116816783A (en) | 2023-05-10 | 2023-05-10 | Connection structure and connection method of main rod of three-screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116816783A (en) |
-
2023
- 2023-05-10 CN CN202310520090.6A patent/CN116816783A/en active Pending
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