CN116292274B - A main rod of a high-load-bearing three-screw pump - Google Patents
A main rod of a high-load-bearing three-screw pump Download PDFInfo
- Publication number
- CN116292274B CN116292274B CN202310463886.2A CN202310463886A CN116292274B CN 116292274 B CN116292274 B CN 116292274B CN 202310463886 A CN202310463886 A CN 202310463886A CN 116292274 B CN116292274 B CN 116292274B
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- rod
- screw
- pump
- bearing
- rear end
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- 238000007789 sealing Methods 0.000 claims description 23
- 239000010425 asbestos Substances 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 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
- 238000009751 slip forming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
- F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
- F04C2/165—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type having more than two rotary pistons with parallel axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
本发明公开了一种高承载力三螺杆泵的主杆，涉及三螺杆泵技术领域，包括泵体，所述泵体的内部设置有主动螺杆，所述主动螺杆包括前端杆，所述前端杆的后端设置有中端杆，所述中端杆的后端设置有后端杆，每个所述限位槽的内部均设置有限位块，每个所述T型孔的内部均设置有圆头T型杆，两个所述放置槽的内壁均螺纹贯穿有固定螺丝，所述圆柱槽的内部设置有圆头杆，本发明通过设置主动螺杆分段拆装的方式，可以有效地节约成本，同时通过设置T型孔、圆头T型杆、弹簧、圆柱槽、固定螺丝和圆头杆的配合，可以让前端杆、中端杆和后端杆组成的杆从泵内部快速移出，即有效地提高三螺杆泵的主动螺杆的使用效率。
The present invention discloses a main rod of a high-load-bearing three-screw pump, which relates to the technical field of three-screw pumps and comprises a pump body, wherein an active screw is arranged inside the pump body, wherein the active screw comprises a front end rod, a middle end rod is arranged at the rear end of the front end rod, and a rear end rod is arranged at the rear end of the middle end rod, a limiting block is arranged inside each of the limit grooves, a round-head T-rod is arranged inside each of the T-holes, a fixing screw is threadedly penetrated through the inner walls of the two placement grooves, and a round-head rod is arranged inside the cylindrical groove. The present invention can effectively save costs by arranging a segmented disassembly and assembly mode of the active screw, and at the same time, by arranging the cooperation of the T-hole, the round-head T-rod, the spring, the cylindrical groove, the fixing screw and the round-head rod, the rod composed of the front end rod, the middle end rod and the rear end rod can be quickly moved out from the inside of the pump, i.e., the utilization efficiency of the active screw of the three-screw pump is effectively improved.
Description
Technical Field
The invention relates to the technical field of three-screw pumps, in particular to a main rod of a high-bearing-capacity three-screw pump.
Background
The three-screw pump is a device for liquid delivery, is the most productive of screw pumps and is a common positive displacement rotor pump, and mainly consists of a driving screw connected with a motor, two driven screws matched with the driving screw and a pump sleeve fixed in a pump body, wherein three intermeshing screws are formed into a sealing cavity according to each lead in the pump sleeve, 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 sealed in the sealing spaces are continuously pushed to the discharge end along the axial direction from the suction port. 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.
In the actual use process of the main rod of the existing engineering three-screw pump, although the main rod can be matched with other parts in the pump to operate, the liquid conveying function of the three-screw pump is realized, most of the main rod of the existing three-screw pump is an integral body, the operation of sectional disassembly and assembly cannot be performed, namely, when the three-screw pump is damaged at a certain position, the whole main rod needs to be replaced, namely, the cost is increased, and the use efficiency is reduced.
We have therefore proposed a high-load three-screw pump boom in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a main rod of a three-screw pump with high bearing capacity, which aims to solve the problems that the main rod of the existing engineering three-screw pump is integral and can not be assembled and disassembled in a segmented way, namely, the whole main rod needs to be replaced once a certain position of the three-screw pump is damaged, namely, the cost is increased and the use efficiency is reduced.
In order to achieve the purpose, the invention provides the technical scheme that the main rod of the high-bearing three-screw pump comprises a pump body, wherein a driving screw is arranged in the pump body;
The driving screw comprises a front end rod, the rear end of front end rod is provided with the middle end rod, the rear end of middle end rod is provided with the rear end rod, rectangular channel has been seted up to the rear end of front end rod, the inside of rectangular channel is provided with the rectangle post, the mounting groove has all been seted up on the surface of front end rod, the surface of middle end rod and the surface of rear end rod, every rectangular hole has all been seted up to the inner wall of mounting groove, four spacing grooves have all been seted up to the both sides of rectangle post, every the inside of spacing groove all is provided with the stopper, every the inside of mounting groove has all been threaded to cup joint fixing bolt, every the inside of mounting groove all is provided with the sealing plug, the surface of rear end rod is provided with first ring piece, the surface of rear end rod is provided with the second ring piece, the surface of rear end rod has seted up the cylinder groove, three sets of T type holes, every the inside of T type hole all is provided with the round head T type pole, every round head, two round head surface mounting groove has two the inside of the screw, two end mounting groove have all been provided with the screw.
Preferably, one end of the rectangular column movably penetrates through the front end of the middle end rod, one end of the rectangular column is slidably embedded in the front end of the rear end rod, the number of mounting grooves on the front end rod and the number of mounting grooves on the rear end rod are two, the number of mounting grooves on the middle end rod are four, the front end of each limiting block is respectively located in each rectangular hole, the limiting block is conveniently mounted in the corresponding limiting groove under the cooperation of the rectangular holes and the mounting grooves, and the corresponding rod can be prevented from being separated from the rectangular column under the action of the limiting block.
Preferably, one end of each fixing bolt is respectively contacted with the surface of each limiting block, the number of each group of T-shaped holes is two, one end of each spring is respectively installed with the inner wall of each T-shaped hole, and one end of the corresponding round head T-shaped rod can be quickly moved back to the inside of the corresponding T-shaped hole conveniently under the cooperation of the spring and the T-shaped hole.
Preferably, one end of each of the fixing screws is in threaded connection with the surface of the round head rod, and the round head end of each round head T-shaped rod is in contact with the surface of the round head rod, so that the round head T-shaped rod can be prevented from moving in the corresponding T-shaped hole under the action of the round head rod.
Preferably, six the button head T-shaped rods divide into three altogether, wherein two sets of the one end of button head T-shaped rods is all slidingly embedded in the inner wall of the second circular ring block, and another set of the one end of button head T-shaped rods is slidingly embedded in the inner wall of the first circular ring block, so that the first circular ring block and the second circular ring block can be prevented from being separated from the rear end rod under the action of the button head T-shaped rods.
Preferably, the safety valve is arranged on the pump body, the pump sleeve is arranged in the pump body, the driving screw is arranged in the pump sleeve, two driven screws are arranged in the pump sleeve, the front ends of the driven screws are provided with balance cylinder sleeves, the front end of the pump body is provided with a front cover, the surface of the front cover is provided with a bearing seat, and the bearing body can be installed with a shaft retainer ring more stably during working under the action of the bearing seat.
Preferably, the internally mounted of bearing frame has the bearing body, the retaining ring for the axle is installed to the front end of bearing body, mechanical seal body is installed to the front end of retaining ring for the axle, mechanical seal seat is all installed to the front end of bearing frame and mechanical seal body's front end, conveniently under mechanical seal seat's effect, can improve the leakproofness between pump body and the initiative screw rod.
Preferably, the flat keyway has been seted up to the front end of initiative screw rod, all be provided with oil-resistant asbestos pad between the pump body, protecgulum, bearing frame, the mechanical seal seat, mechanical seal lid is installed to the front end of bearing frame, O type circle is installed to the front end of mechanical seal lid, the back lid is installed to the rear end of the pump body, conveniently under the effect of back lid, can take out fast the pole that makes things convenient for later stage front end pole, well end pole and rear end pole to the inside of the pump body.
Preferably, the two driven screws are meshed with the driving screw, the pump sleeve and the balance cylinder sleeve are connected with the front cover, the front cover is matched with the driving screw, the bearing body is matched with the driving screw, and the mechanical seal body is arranged on the mechanical seal cover, so that the mechanical seal body can be protected under the action of the mechanical seal cover.
Preferably, the balance cylinder sleeve is used for fixing the driven screw rod, is in butt joint with the pump sleeve and the front cover, the O-shaped ring is matched with the mechanical seal body, screw holes are formed in the upper portion and the lower portion of the pump body, screw plug bodies are arranged in the screw holes, and the medium inside the pump body can be prevented from flowing out of the screw holes under the action of the screw plug bodies conveniently.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the invention, cost can be effectively saved by arranging the driving screw in a sectional disassembly and assembly mode, meanwhile, by arranging the T-shaped hole, the round head T-shaped rod, the spring, the cylindrical groove, the fixing screw and the round head rod to be matched, the rod consisting of the front end rod, the middle end rod and the rear end rod can be quickly moved out of the pump, namely, the service efficiency of the driving screw of the three-screw pump can be effectively improved, the rectangular column can be conveniently installed under the action of the rectangular groove, the front end rod, the middle end rod and the rear end rod can be connected together under the matching of the rectangular column and the limiting block, the fixing screw can be conveniently extruded by the fixing screw to be stably fixed in the corresponding limiting groove under the action of the installation groove, the corresponding rod can be prevented from being separated from the rectangular column under the action of the limiting block, the corresponding limiting block can be prevented from penetrating through the rectangular hole, the situation that the limiting block slides out of the corresponding limiting groove can be effectively prevented from the inner part of the cylindrical groove under the action of the sealing plug, and the fixing screw in the corresponding installation groove can be effectively prevented from being separated from the round head rod and the round head rod.
2. According to the invention, the pump body, the front cover, the bearing seat, the mechanical seal end cover, the mechanical seal body, the bearing body, the pump sleeve, the balance cylinder sleeve, the driven screw and the driving screw are arranged, so that the leakage threshold pressure of the pump body can be increased to a certain extent, the performance of the pump body is improved, the service life of the pump body is prolonged, the use cost of the three-screw pump is saved, under the cooperation of the O-shaped ring and the mechanical seal body, the sealing effect of the three-screw body can be improved, under the action of the screw plug body, medium in the pump body can be prevented from flowing out of the screw plug hole, under the action of the flat key groove, the connection operation between the driving screw and a coupler prepared by staff is facilitated, under the action of the oil-resistant asbestos pad, the sealing effect between all parts can be improved, and under the action of the safety valve, the overload damage caused by overhigh discharge pressure of the three-screw pump can be prevented.
Drawings
FIG. 1 is a schematic front view of an assembled body structure of a main rod of a high-bearing three-screw pump according to the present invention;
FIG. 2 is a schematic diagram of the main rod of the three-screw pump with high bearing capacity before improvement;
FIG. 3 is a schematic view of a novel driving screw structure of a main rod of a high-bearing three-screw pump according to the present invention;
FIG. 4 is another angular active screw perspective view of the main rod of a high capacity three-screw pump of the present invention;
FIG. 5 is a perspective view of the active screw portion of the main rod of a high capacity three-screw pump of the present invention;
FIG. 6 is a perspective view, partially in section, of the active screw of the main rod of a high-capacity three-screw pump of the present invention;
Fig. 7 is a schematic perspective view of a front end rod, a rectangular groove, a mounting groove and a rectangular hole of a main rod of a high-bearing three-screw pump according to the present invention.
8 Parts of a pump body, 10 parts of a front cover, 11 parts of an oil-resistant asbestos pad, 12 parts of a safety valve, 13 parts of a bearing seat, 15 parts of an O-ring, 16 parts of a flat key groove, 17 parts of a mechanical sealing cover, 18 parts of a mechanical sealing body, 20 parts of a mechanical sealing seat, 22 parts of a shaft retainer ring, 23 parts of a bearing body, 24 parts of a screw hole, 25 parts of a screw plug body, 26 parts of a pump sleeve, 27 parts of a balance cylinder sleeve, 32 parts of a rear cover, 34 parts of a driven screw;
35. Active screw, 3501, front end bar, 3502, middle end bar, 3503, rear end bar, 3504, rectangular slot, 3505, rectangular post, 3506, mounting slot, 3507, rectangular hole, 3508, limit slot, 3509, limit block, 3510, sealing plug, 3511, fixing bolt, 3512, first circular block, 3513, second circular block, 3514, T-shaped hole, 3515, round head T-shaped bar, 3516, spring, 3517, cylindrical slot, 3518, placement slot, 3519, fixing screw, 3520, round head bar.
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.
Referring to FIGS. 1-7, the present invention provides a technical solution, including a main rod of a high-bearing three-screw pump, including a pump body 8, wherein an active screw 35 is disposed in the pump body 8;
The driving screw 35 includes a front end rod 3501, a middle end rod 3502 is arranged at the rear end of the front end rod 3501, a rear end rod 3503 is arranged at the rear end of the middle end rod 3502, a rectangular groove 3504 is arranged at the rear end of the front end rod 3501, a rectangular column 3505 is arranged in the rectangular groove 3504, mounting grooves 3506 are arranged on the surface of the front end rod 3501, the surface of the middle end rod 3502 and the surface of the rear end rod 3503, rectangular holes 3507 are arranged on the inner wall of each mounting groove 3506, four limit grooves 3508 are arranged on two sides of the rectangular column 3505, limit blocks 3509 are arranged in each limit groove 3508, a fixing bolt 3511 is sleeved in each mounting groove 3506 in a threaded manner, the inside of every mounting groove 3506 all is provided with sealing plug 3510, the surface of rear end pole 3503 is provided with first ring piece 3512, the surface of rear end pole 3503 is provided with second ring piece 3513, cylindrical tank 3517 has been seted up on the surface of rear end pole 3503, three group T type holes 3514 have been seted up to cylindrical tank 3517's inner wall, the inside of every T type hole 3514 all is provided with button head T type pole 3515, spring 3516 has all been installed on the surface of every button head T type pole 3515, two standing grooves 3518 have been seted up on the surface of rear end pole 3503, the equal screw thread of inner wall of two standing grooves 3518 has run through fixed screw 3519, the inside of cylindrical tank 3517 is provided with button head pole 3520.
According to the embodiment shown in fig. 4 to 7, one end of the rectangular column 3505 movably penetrates through the front end of the middle end rod 3502, one end of the rectangular column 3505 is slidably embedded in the front end of the rear end rod 3503, the number of the mounting grooves 3506 on the front end rod 3501 and the rear end rod 3503 is two, the number of the mounting grooves 3506 on the middle end rod 3502 is four, the front end of each limiting block 3509 is located inside each rectangular hole 3507, the limiting blocks 3509 are conveniently mounted inside the corresponding limiting grooves 3508 under the cooperation of the rectangular holes 3507 and the mounting grooves 3506, and the corresponding rods can be prevented from being separated from the rectangular column 3505 under the action of the limiting blocks 3509.
According to fig. 5 and 6, one end of each fixing bolt 3511 contacts with the surface of each limiting block 3509, the number of each group of T-shaped holes 3514 is two, one end of each spring 3516 is mounted with the inner wall of each T-shaped hole 3514, so that one end of the corresponding round-head T-shaped rod 3515 can be quickly moved back to the inside of the corresponding T-shaped hole 3514 under the cooperation of the springs 3516 and the T-shaped holes 3514.
According to fig. 5 and 6, one ends of two fixing screws 3519 are screwed on the surface of the round head rod 3520, and the round head end of each round head T-shaped rod 3515 is contacted with the surface of the round head rod 3520, so that the round head T-shaped rods 3515 can be prevented from moving in the corresponding T-shaped holes 3514 under the action of the round head rod 3520.
According to the embodiments shown in fig. 5 and 6, the six round-head T-shaped rods 3515 are divided into three groups, wherein one ends of two groups of round-head T-shaped rods 3515 are slidably embedded in the inner wall of the second circular ring block 3513, and one ends of the other groups of round-head T-shaped rods 3515 are slidably embedded in the inner wall of the first circular ring block 3512, so that the first circular ring block 3512 and the second circular ring block 3513 can be prevented from being separated from the rear end rod 3503 under the action of the round-head T-shaped rods 3515.
According to the illustration of fig. 1-3, be provided with relief valve 12 on the pump body 8, the internally mounted of pump body 8 has pump cover 26, and initiative screw rod 35 is in the inside of pump cover 26, and the internally mounted of pump cover 26 has two driven screw rods 34, and balanced cylinder liner 27 is all installed to the front end of two driven screw rods 34, and protecgulum 10 is installed to the front end of pump body 8, and the surface mounting of protecgulum 10 has bearing frame 13, and the convenience can be with the axle that bearing body 23 installed with retaining ring 22 during operation more stable under the effect of bearing frame 13.
According to the embodiment shown in fig. 1, the bearing body 23 is mounted in the bearing housing 13, the shaft retainer 22 is mounted at the front end of the bearing body 23, the mechanical seal body 18 is mounted at the front end of the shaft retainer 22, and the mechanical seal seat 20 is mounted at the front end of the bearing housing 13 and the front end of the mechanical seal body 18, so that the sealing performance between the pump body 8 and the driving screw 35 can be improved under the action of the mechanical seal seat 20.
According to the illustration of fig. 1-3, the front end of the driving screw 35 is provided with a flat key slot 16, an oil-proof asbestos pad 11 is arranged among the pump body 8, the front cover 10, the bearing seat 13 and the mechanical seal seat 20, the front end of the bearing seat 13 is provided with a mechanical seal cover 17, the front end of the mechanical seal cover 17 is provided with an O-shaped ring 15, the rear end of the pump body 8 is provided with a rear cover 32, and the rod composed of a front end rod 3501, a middle end rod 3502 and a rear end rod 3503 at the later stage can be conveniently and rapidly taken out from the inside of the pump body 8 under the action of the rear cover 32.
According to the figures 1-3, two driven screws 34 are engaged with the driving screw 35, the pump sleeve 26 and the balance cylinder sleeve 27 are connected with the front cover 10, the front cover 10 is matched with the driving screw 35, the bearing body 23 is matched with the driving screw 35, the mechanical seal body 18 is arranged on the mechanical seal cover 17, and the mechanical seal body 18 can be protected conveniently under the action of the mechanical seal cover 17.
According to the illustration of fig. 1, the balance cylinder sleeve 27 is used for fixing the driven screw 34, is in butt joint with the pump sleeve 26 and the front cover 10, the O-shaped ring 15 is matched with the mechanical seal body 18, the upper part and the lower part of the pump body 8 are provided with screw holes 24, the inside of each screw hole 24 is provided with a screw plug body 25, and the medium inside the pump body 8 can be prevented from flowing out of the screw holes 24 conveniently under the action of the screw plug body 25.
When the three-screw pump needs to be used, the three-screw pump is firstly connected with an external motor through a coupler prepared by a worker, then the external motor is started, the external motor started at the moment directly drives a driving screw rod 35 under the cooperation of the coupler, the driving screw rod 35 started at the moment directly drives two driven screw rods 34 meshed with the driving screw rod 35 to rotate, at the moment, under the cooperation of the driving screw rod 35, the driven screw rod 34, an O-shaped ring 15, a mechanical seal body 18 and a pump sleeve 26, the space between the suction inlet and the discharge outlet of the three-screw pump is directly divided into one or more sealing spaces, when the driving screw rod 35 and the driven screw rod 34 continuously rotate, the space between the suction inlet and the discharge outlet of the three-screw pump is continuously formed, then liquid in the suction chamber is filled in the suction chamber, and when the liquid enters the suction chamber, the liquid can directly flow along the driving screw rod 35, the driven screw 34 is continuously pushed to the discharge port of the three-screw pump in the axial direction, that is, the liquid sealed in each space is continuously discharged, thereby achieving the liquid conveying operation, wherein the mechanical seal body 18 matched with the driven screw 34 is used to greatly increase the pressure which can be carried in the pump body 8, so that the same type three-screw pump can be suitable for more complex working conditions, the research cost is saved, the use cost of the three-screw pump is greatly reduced, the service life of the pump body 8 is prolonged, and when the front end rod 3501, When the rod composed of the middle end rod 3502 and the rear end rod 3503 is quickly removed from the interior of the pump body 8, the rear cover 32 is firstly removed, then the two fixing screws 3519 are removed, then the round head rod 3520 is poured out of the cylindrical groove 3517 formed in the rear end rod 3503, when the round head rod 3520 starts to be removed from the interior of the cylindrical groove 3517, the round head T-shaped rod 3515 in each T-shaped hole 3514 is directly moved back to the interior of the corresponding T-shaped hole 3514 under the action of the corresponding spring 3516, and when all the round head T-shaped rods 3515 are moved back to the interior of the corresponding T-shaped holes 3514, the round head rod 3501 is directly moved back to the interior of the corresponding T-shaped holes 3514, the rod composed of the middle rod 3502 and the rear rod 3503 can be quickly removed from the inside of the pump body 8, when the front rod 3501 in the drive screw 35 needs to be replaced, when any one of the middle end rod 3502 and the rear end rod 3503 is taken down, the driving screw 35 is firstly taken down from the inside of the pump body 8, then the mounted sealing plug 3510 on the corresponding rod is taken down, then a worker takes out the fixing bolt 3511 on the corresponding rod from the inside of the corresponding mounting groove 3506 by using a tool, after the fixing bolt 3511 in the corresponding mounting groove 3506 is taken out, the limiting block 3509 in the rectangular hole 3507 communicated with each mounting groove 3506 is directly taken out from the inside of the corresponding limiting groove 3508, and then the front end rod 3501 which needs to be replaced can be replaced, Any one of the middle end bar 3502 and the rear end bar 3503, namely, the driving screw 35 of the three-screw pump is provided with a sectional disassembly and assembly mode, so that the cost is saved, and the use efficiency of the driving screw 35 of the three-screw pump is effectively improved.
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 (6)
1. The main rod of the high-bearing three-screw pump comprises a pump body (8) and is characterized in that a driving screw rod (35) is arranged in the pump body (8);
The driving screw (35) comprises a front end rod (3501), the rear end of the front end rod (3501) is provided with a middle end rod (3502), the rear end of the middle end rod (3502) is provided with a rear end rod (3503), the rear end of the front end rod (3501) is provided with a rectangular groove (3504), the inside of the rectangular groove (3504) is provided with a rectangular column (3505), the surface of the front end rod (3501), the surface of the middle end rod (3502) and the surface of the rear end rod (3503) are provided with mounting grooves (3506), the inner wall of each mounting groove (3506) is provided with rectangular holes (3507), the two sides of the rectangular column (3505) are provided with four limiting grooves (3508), the inside of every spacing groove (3508) all is provided with stopper (3509), every the inside of every mounting groove (3506) all screw thread has cup jointed fixing bolt (3511), every the inside of mounting groove (3506) all is provided with sealing plug (3510), the surface of being close to mounting groove (3506) one side of rear end pole (3503) is provided with first ring piece (3512), the surface of keeping away from mounting groove (3506) one side of rear end pole (3503) is provided with second ring piece (3513), cylinder groove (3517) have been seted up to the surface of keeping away from mounting groove (3506) one side of rear end pole (3503), three T type holes (3514) of group have been seted up to the inner wall of cylinder groove (3517), the inside of every T type hole (3514) all is provided with button head T type pole (3515), every button head T type pole (3515) surface all installs spring (3516), two standing grooves (3518) have been seted up to the surface of one side of keeping away from mounting groove (3506) of rear end pole (3503), two the inner wall of standing groove (3518) all screw thread runs through has fixed screw (3519), the inside of cylinder groove (3517) is provided with button head pole (3520);
One end of the rectangular column (3505) movably penetrates through the front end of the middle-end rod (3502), one end of the rectangular column (3505) is slidably embedded into the front end of the rear-end rod (3503), the number of mounting grooves (3506) on the front-end rod (3501) and the number of mounting grooves (3506) on the rear-end rod (3503) are two, the number of mounting grooves (3506) on the middle-end rod (3502) is four, and the front end of each limiting block (3509) is located in each rectangular hole (3507) respectively;
one end of each fixing bolt (3511) is respectively contacted with the surface of each limiting block (3509), the number of each group of T-shaped holes (3514) is two, and one end of each spring (3516) is respectively installed with the inner wall of each T-shaped hole (3514);
One end of each of the two fixing screws (3519) is in threaded connection with the surface of the round head rod (3520), and the round head end of each round head T-shaped rod (3515) is in contact with the surface of the round head rod (3520);
Six the button head T-shaped rods (3515) divide into three altogether, wherein two sets of the one end of button head T-shaped rods (3515) all slide and inlay and establish the inner wall at second ring piece (3513), and another set of the one end of button head T-shaped rods (3515) slide and inlay and establish the inner wall at first ring piece (3512).
2. The main rod of the high-bearing three-screw pump according to claim 1, wherein the safety valve (12) is arranged on the pump body (8), a pump sleeve (26) is arranged in the pump body (8), the driving screw (35) is positioned in the pump sleeve (26), two driven screws (34) are arranged in the pump sleeve (26), the front ends of the two driven screws (34) are respectively provided with a balance cylinder sleeve (27), a front cover (10) is arranged at the front end of the pump body (8), and a bearing seat (13) is arranged on the surface of the front cover (10).
3. The main rod of the high-bearing three-screw pump according to claim 2, wherein a bearing body (23) is installed in the bearing seat (13), a shaft retainer ring (22) is installed at the front end of the bearing body (23), a mechanical seal body (18) is installed at the front end of the shaft retainer ring (22), and mechanical seal seats (20) are installed at the front end of the bearing seat (13) and the front end of the mechanical seal body (18).
4. The main rod of the high-bearing three-screw pump according to claim 3, wherein the front end of the driving screw (35) is provided with a flat key groove (16), oil-resistant asbestos pads (11) are arranged among the pump body (8), the front cover (10), the bearing seat (13) and the mechanical sealing seat (20), the front end of the bearing seat (13) is provided with a mechanical sealing cover (17), the front end of the mechanical sealing cover (17) is provided with an O-shaped ring (15), and the rear end of the pump body (8) is provided with a rear cover (32).
5. The main rod of the high-bearing three-screw pump according to claim 4, wherein two driven screws (34) are in meshed connection with the driving screw (35), the pump sleeve (26) and the balance cylinder sleeve (27) are connected with the front cover (10), the front cover (10) is matched with the driving screw (35), the bearing body (23) is matched with the driving screw (35), and the mechanical sealing body (18) is arranged on the mechanical sealing cover (17).
6. The main rod of the high-bearing three-screw pump according to claim 5, wherein the balance cylinder sleeve (27) is used for fixing the driven screw (34), is in butt joint with the pump sleeve (26) and the front cover (10), the O-shaped ring (15) is matched with the mechanical seal body (18), screw holes (24) are formed in the upper portion and the lower portion of the pump body (8), and a screw plug body (25) is arranged in each screw hole (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310463886.2A CN116292274B (en) | 2023-04-26 | 2023-04-26 | A main rod of a high-load-bearing three-screw pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310463886.2A CN116292274B (en) | 2023-04-26 | 2023-04-26 | A main rod of a high-load-bearing three-screw pump |
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| Publication Number | Publication Date |
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| CN116292274A CN116292274A (en) | 2023-06-23 |
| CN116292274B true CN116292274B (en) | 2025-04-11 |
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| CN202310463886.2A Active CN116292274B (en) | 2023-04-26 | 2023-04-26 | A main rod of a high-load-bearing three-screw pump |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370540A (en) * | 2011-01-25 | 2013-10-23 | 兵神装备株式会社 | Single-shaft eccentric screw pump |
| CN113062860A (en) * | 2021-04-20 | 2021-07-02 | 戴勒普(杭州)流体控制科技有限公司 | Three-screw pump with high sealing performance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405520A (en) * | 2022-09-05 | 2022-11-29 | 南京工程学院 | A high-pressure screw pump suitable for various media |
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- 2023-04-26 CN CN202310463886.2A patent/CN116292274B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103370540A (en) * | 2011-01-25 | 2013-10-23 | 兵神装备株式会社 | Single-shaft eccentric screw pump |
| CN113062860A (en) * | 2021-04-20 | 2021-07-02 | 戴勒普(杭州)流体控制科技有限公司 | Three-screw pump with high sealing performance |
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| CN116292274A (en) | 2023-06-23 |
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