CN113494463A - Hydraulic centrifugal pump with adjustable impeller - Google Patents
Hydraulic centrifugal pump with adjustable impeller Download PDFInfo
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- CN113494463A CN113494463A CN202110881432.8A CN202110881432A CN113494463A CN 113494463 A CN113494463 A CN 113494463A CN 202110881432 A CN202110881432 A CN 202110881432A CN 113494463 A CN113494463 A CN 113494463A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 20
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 37
- 238000007670 refining Methods 0.000 description 7
- 238000003889 chemical engineering Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a hydraulic centrifugal pump with an adjustable impeller, which comprises a base; a motor base is connected above the base in a sliding mode, a driving motor is fixedly connected to the motor base, a distance adjusting shaft is rotatably connected to the base through a bearing, and the distance adjusting shaft and a screw hole of the motor base form spiral transmission; the lower part of the centrifugal pump shell is fixedly connected to the left end of the upper surface of the base through welding, the centrifugal pump shell comprises a rear end cover, and the rear end cover is fixedly connected to the rear part of the centrifugal pump shell through a threaded connecting piece; the counter bore is arranged on the surface of the pump shell of the centrifugal pump; the variable impeller comprises a main impeller, a wheel center disk is arranged in the middle of the main impeller, and a wheel shaft is fixedly connected to the rear surface of the wheel center disk; it can be seen that the water pump has a driving structure with various impellers, can be adjusted and used alternately, is suitable for various occasions, and improves the use universality.
Description
Technical Field
The invention belongs to the technical field of centrifugal pumps, and particularly relates to a hydraulic centrifugal pump with an adjustable impeller.
Background
Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, a pump shell and a water suction pipe are filled with water, then a motor is started, a pump shaft drives an impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller and flows into a water pressing pipeline of the water pump through a flow channel of a volute pump shell, and the three common impellers in the centrifugal pump are a closed impeller, a semi-open impeller and an open impeller. Wherein, the closed impeller consists of blades, a front cover plate and a rear cover plate; the efficiency of the closed impeller is high, the manufacturing difficulty is high, and the closed impeller is most applied to a centrifugal pump; the semi-open impeller consists of a rear cover plate and blades, is low in manufacturing difficulty, low in cost and high in adaptability, is gradually applied to centrifugal pumps for oil refining and chemical engineering, and is used for conveying clean water and liquid similar to the clean water; the open impeller is only provided with the blades and the blade reinforcing ribs, and the impeller without the front cover plate and the rear cover plate is low in impeller efficiency and less in application, and is mainly used for conveying liquid with high viscosity and slurry liquid. It can be seen that the class and function of the impeller can also be adjusted by the arrangement of the end cover and the intermediate blades.
For example, application No.: (CN105715552B) the invention discloses an impeller blade-adjustable centrifugal sewage pump impeller, which comprises an upper cover plate, a plurality of impeller blades and a lower cover plate, wherein the upper cover plate is positioned at the upper end of the impeller, the impeller blades are positioned at the lower end of the upper cover plate, the impeller blades are in threaded connection with the upper cover plate, the impeller blades are mutually vertical to the upper cover plate, the lower cover plate is positioned at the lower end of the impeller blades, the lower cover plate is connected with impeller blade threads, the impeller blades are a plurality of impeller blades and the lower cover plate, the upper cover plate is positioned at the upper end of the impeller, the impeller blades are positioned at the lower end of the upper cover plate, the impeller blades are in threaded connection with the upper cover plate, the impeller blades are mutually vertical to the upper cover plate, the lower cover plate is positioned at the lower end of the impeller blades, and the lower cover plate is in threaded connection with the impeller blades.
Based on the search of above-mentioned patent to and the structure discovery among the combination prior art, when the centrifugal pump similar to among the above-mentioned patent used, can't carry out the structure selection of impeller in the water pump according to the quality of water and the size of required water pressure in the region of working to be inconvenient for adapt to required operational environment, it is low to use the convenience.
Disclosure of Invention
It is an object of the present invention to provide a hydraulic centrifugal pump with adjustable impeller which overcomes some or all of the disadvantages of the prior art.
The invention relates to a hydraulic centrifugal pump with an adjustable impeller, which comprises a base; a motor base is connected above the base in a sliding mode, a driving motor is fixedly connected to the motor base, a distance adjusting shaft is rotatably connected to the base through a bearing, and the distance adjusting shaft and a screw hole of the motor base form spiral transmission; the lower part of the centrifugal pump shell is fixedly connected to the left end of the upper surface of the base through welding, the centrifugal pump shell comprises a rear end cover, and the rear end cover is fixedly connected to the rear part of the centrifugal pump shell through a threaded connecting piece; the counter bore is arranged on the surface of the pump shell of the centrifugal pump; an output shaft of the driving motor is connected with a shaft of the variable impeller through a coupling, the shaft of the variable impeller is rotatably connected with an adjusting cylinder, the variable impeller comprises a main impeller, a wheel center disk is arranged in the middle of the main impeller, and a wheel shaft is fixedly connected to the rear surface of the wheel center disk; the inner adjusting side plate is arranged at the rear side of the main impeller; the outer adjusting side plate is arranged on the front side of the main impeller; the inner adjusting column is rotationally connected to a pump shell of the centrifugal pump, and a sealing ring is arranged at the connecting position of the inner adjusting column and the pump shell of the centrifugal pump; the translation frame is equipped with two places, and two places translation frame fixed connection is respectively in the inside both sides of centrifugal pump case, and sliding connection has the planking spacing on the translation frame.
Furthermore, the rear end cover comprises a rear sealing rotary cover which is rotationally connected with the sealing ring through a bearing; the inner telescopic rotary cover is connected in the middle of the rear sealing rotary cover in a sliding manner, and two guide through holes are further formed in the inner telescopic rotary cover.
Furthermore, the adjusting cylinder comprises an adjusting end cylinder, the adjusting end cylinder is arranged at the front end of the adjusting cylinder, the outer side wall of the adjusting end cylinder is provided with threads, and the inside of the adjusting end cylinder is rotatably connected to the wheel shaft through a deep groove ball bearing; the anti-skid rotary cylinder is arranged at the rear end of the adjusting cylinder, anti-skid concave lines are arranged on the outer side wall of the adjusting end cylinder, and the anti-skid rotary cylinder is rotatably connected to the wheel shaft through a deep groove ball bearing.
Furthermore, the translation frame is composed of two parallel frame bodies, and the cross section of each translation frame at two sides is of a rectangular structure.
Furthermore, the inner adjusting column comprises an outer adjusting head, the outer adjusting head is arranged at the front end of the inner adjusting column, the outer adjusting head is positioned in the middle of the counter bore, and a hexagonal groove is formed in the middle of the outer adjusting head; the adjusting screw thread is arranged on the outer wall of the inner adjusting column.
Furthermore, the outer adjusting side plate comprises a liquid inlet groove which is formed in the middle of the outer adjusting side plate, and the outer adjusting side plate is a circular through groove; the outer arc groove is an arc groove body and is distributed on the surface of the outer adjusting side plate.
Furthermore, the inner adjusting side plate comprises an inner adjusting middle hole, the inner adjusting middle hole is a circular groove, and the inner adjusting middle hole is formed in the middle of the inner adjusting side plate; the inner arc groove is an arc groove body, the inner arc groove is distributed on the surface of the inner adjusting side plate, the reciprocating push block is arranged on the rear side face of the inner adjusting side plate, and reciprocating adjusting grains are arranged on the reciprocating push block.
Furthermore, the planking spacing frame is including the deflector, and the deflector is seted up in the outside of planking spacing frame, and sets up the guide way of two rectangle groove structures on the deflector to a location screw has been seted up to the centre of deflector, and location screw screwed connection adjusting thread.
Compared with the prior art, the invention has the following beneficial effects:
through the cooperation of the driving motor of this structure and centrifugal pump case, the sealed spiral cover of back rotates to be connected in the middle of the rear end cap, the flexible spiral cover in the middle swing joint of the sealed spiral cover of back has simultaneously, the interior spiral cover that stretches out and draws back is oval-shaped structure, the interior spiral cover sliding connection that stretches out and draws back is inside the oval cell body of seting up in the middle of the sealed spiral cover of back, the junction passes through the sealing washer and seals, reducible leakage, when driving motor drives the shaft and rotate, drive main impeller and rotate, it rotates to drive the sealed spiral cover of back at the rear end cap, when adjusting the distance between driving motor and the centrifugal pump case through the distance regulating spindle, the interior spiral cover that stretches out and draws back removes in the sealed spiral cover of back, and then change the position of main impeller in the centrifugal pump case.
Through the matching of the inner adjusting column, the outer plate limiting frame and the translation frame of the structure, the outer adjusting head rotates by using a hexagonal screwdriver, the inner adjusting column rotates in the pump shell of the centrifugal pump when rotating, the outer adjusting head is hidden in a counter bore, a sealing ring is arranged between the inner adjusting column and the pump shell of the centrifugal pump to improve the sealing performance, the inner adjusting column rotates to form spiral transmission with a positioning screw hole so as to drive the outer plate limiting frame to move on the translation frame, the outer adjusting side plate is driven to move by a groove body on the inner side of the outer plate limiting frame to change the position of the outer adjusting side plate, the main impeller blade is always positioned in an outer arc groove body, the main impeller rotates to drive the outer adjusting side plate to rotate, when the outer adjusting side plate moves towards the direction of the inner adjusting side plate, and the inner adjusting side plate and the outer adjusting side plate are simultaneously positioned on the rear side of the main impeller, the structure of the variable impeller at the moment is changed into a semi-open impeller structure, the centrifugal pump can be used as a centrifugal pump for oil refining and chemical engineering, and can also be used for conveying clean water and liquid similar to the clean water.
Through the matching of the manual rotation adjusting cylinder and the inner adjusting side plate, when the adjusting cylinder is rotated manually, the threads of the adjusting end cylinder and the reciprocating adjusting threads form spiral transmission, so that the inner adjusting side plate moves; when the adjusting main impeller is clamped between the inner adjusting side plate and the outer adjusting side plate, a closed impeller can be formed and is suitable for conveying clean liquid without particles, such as clear water, solution and the like, with low viscosity, and when the inner adjusting side plate and the outer adjusting side plate are both arranged at the rear part, a semi-open impeller can be formed and is gradually increased in the centrifugal pump for oil refining and chemical industry and used for conveying clear water and liquid similar to the clear water, under the state, the adjusting main impeller is moved towards the inner adjusting side plate, the positions of the inner adjusting side plate and the outer adjusting side plate are controlled to be fixed, namely the width of an impeller blade is reduced, the smaller the width of the impeller blade is according to the water pumping principle of the centrifugal pump, the smaller the water pumping efficiency is, the operation load of the centrifugal pump is reduced, meanwhile, the more viscous liquid can be pumped, and the impeller can be selected and adjusted to a corresponding structure according to the application occasion of the centrifugal pump, it can be seen that the water pump has a driving structure with various impellers, can be adjusted and used alternately, is suitable for various occasions, and improves the use universality.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the distance adjustment shaft of the present invention.
Fig. 3 is a schematic structural view of a centrifugal pump casing of the present invention.
Fig. 4 is a schematic view of the internal structure of the centrifugal pump casing of the present invention.
Fig. 5 is a schematic structural view of the variable impeller of the present invention.
Fig. 6 is a schematic view of an exploded structure of the variable impeller assembly of the present invention.
Fig. 7 is a schematic structural view of the rear end cap of the present invention.
Fig. 8 is a partially enlarged view of a portion a of fig. 4 according to the present invention.
Fig. 9 is a partial enlarged structural view of fig. 5B according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a base; 101. a distance adjustment shaft; 2. a motor base; 3. a drive motor; 4. a centrifugal pump housing; 401. a rear end cap; 4011. then sealing and screwing the cover; 4012. an inner telescopic rotary cover; 40121. a guide through hole; 402. a counter bore; 5. an adjusting cylinder; 501. adjusting the end barrel; 502. an anti-slip rotary cylinder; 6. an inner adjusting column; 601. an outer adjustment head; 602. adjusting the screw thread; 7. a variable impeller; 701. a main impeller; 7011. a wheel-in-wheel disc; 7012. a wheel axle; 702. an inner adjusting side plate; 7021. an inner conditioning mesopore; 7022. an inner arc groove; 7023. a reciprocating push block; 70231. adjusting the lines in a reciprocating manner; 703. an outer adjustment side plate; 7031. a liquid inlet tank; 7032. an outer arc groove; 8. an outer plate limiting frame; 801. a guide plate; 802. a guide groove; 803. positioning the screw hole; 9. and (4) a translation frame.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 9:
the invention provides a hydraulic centrifugal pump with an adjustable impeller, which comprises a base 1; a motor base 2 is connected above the base 1 in a sliding manner, a driving motor 3 is fixedly connected to the motor base 2, a distance adjusting shaft 101 is rotatably connected to the base 1 through a bearing, and the distance adjusting shaft 101 and a screw hole of the motor base 2 form spiral transmission; as shown in fig. 1, the lower part of a centrifugal pump shell 4 is fixedly connected to the left end of the upper surface of a base 1 through welding; an output shaft of the driving motor 3 is connected with a shaft of the variable impeller 7 through a coupling, and the shaft of the variable impeller 7 is rotatably connected with the adjusting cylinder 5; the inner adjusting column 6 is rotationally connected to the centrifugal pump shell 4, and a sealing ring is arranged at the connecting position of the inner adjusting column 6 and the centrifugal pump shell 4; the translation frame 9 is provided with two positions, the two translation frames 9 are respectively and fixedly connected to two sides of the interior of the centrifugal pump casing 4, and the translation frame 9 is connected with an outer plate limiting frame 8 in a sliding mode.
The centrifugal pump shell 4 comprises a rear end cover 401, and the rear end cover 401 is fixedly connected to the rear part of the centrifugal pump shell 4 through a threaded connecting piece; the left side and the right side of the front side surface of the centrifugal pump shell 4 are respectively provided with a counter bore 402, a rear sealing screw cap 4011 is connected to the middle of a rear end cover 401 through a bearing, and a sealing ring is arranged between the rear sealing screw cap 4011 and the rear end cover 401; the inner telescopic rotary cover 4012 is connected in the middle of the rear sealing rotary cover 4011 in a sliding manner, and two guide through holes 40121 are formed in the inner telescopic rotary cover 4012; the two reciprocating push blocks 7023 are respectively connected in the two guide through holes 40121 in a sliding manner; as shown in fig. 5-6, the variable impeller 7 includes a main impeller 701, a wheel-in-wheel disk 7011 is disposed in the middle of the main impeller 701, and a wheel shaft 7012 is fixedly connected to the center of the wheel-in-wheel disk 7011; the inner adjusting side plate 702 is arranged on one side of the main impeller 701, which is connected with the direction of the driving motor 3, the reciprocating push block 7023 is arranged on one side of the inner adjusting side plate 702, which is connected with the direction of the driving motor 3, and the reciprocating push block 7023 is provided with reciprocating adjusting grains 70231; the external adjusting side plate 703 is positioned at the other side of the main impeller 701, which is connected with the driving motor 3; as shown in fig. 7, the inner telescopic rotary cover 4012 has an elliptical structure, the inner telescopic rotary cover 4012 is slidably connected to the inside of an elliptical groove body formed in the middle of the rear sealing rotary cover 4011, and the joint is sealed by a sealing ring, so that leakage can be reduced; when the driving motor 3 drives the wheel shaft 7012 to rotate, the main impeller 701 is driven to rotate, the wheel shaft 7012 penetrates through the right center of the inner telescopic rotary cover 4012 and is fixedly connected with the inner telescopic rotary cover 4012, the rear sealing rotary cover 4011 rotates on the rear end cover 401, and when the distance between the driving motor 3 and the centrifugal pump shell 4 is adjusted through the distance adjusting shaft 101, the inner telescopic rotary cover 4012 moves in the rear sealing rotary cover 4011, so that the position of the main impeller 701 in the centrifugal pump shell 4 is changed; the pump casing of centrifugal pump can play supporting role and rivers guide effect in similar centrifugal pump, realizes supporting role to impeller rear side shaft body, and the impeller front side can not be equipped with the back shaft, otherwise can influence the feed liquor efficiency.
As shown in fig. 8, the outer adjusting head 601 is arranged at the front end of the inner adjusting column 6, the outer adjusting head 601 is located in the middle of the counter bore 402, and a hexagonal groove is formed in the middle of the outer adjusting head 601; the adjusting thread 602 is arranged on the outer wall of the inner adjusting column 6, and the inner adjusting column 6 is connected with the shell of the centrifugal pump shell 4 through a bearing; the outer adjusting head 601 is rotated by using a hexagonal screwdriver, the inner adjusting column 6 only rotates on the centrifugal pump casing 4 and does not move during rotation, the outer adjusting head 601 is hidden in the counter bore 402, and a sealing ring is arranged between the inner adjusting column 6 and the centrifugal pump casing 4, so that the sealing performance is improved.
As shown in fig. 8, the guide plate 801 is disposed outside the outer plate limiting frame 8 clamp, and the guide plate 801 is provided with two guide grooves 802 of a rectangular groove structure, and the middle of the guide plate 801 is provided with a positioning screw 803, the positioning screw 803 is in screw connection with an adjusting thread 602, the translation frame 9 is composed of two parallel frame bodies, and the cross section of each frame body of the translation frame 9 on both sides is in a rectangular structure; as shown in fig. 5, the liquid inlet 7031 is formed in the middle of the outer adjusting side plate 703, and the liquid inlet 7031 is a circular through groove; the outer arc groove 7032 is an arc groove body, and the outer arc groove 7032 is distributed on the surface of the outer adjusting side plate 703; as shown in fig. 8, the inner adjusting column 6 rotates and forms a spiral transmission with the positioning screw 803, and further drives the outer plate limiting frame 8 to move on the translation frame 9, the outer adjusting side plate 703 is driven to move by the groove body on the inner side of the outer plate limiting frame 8, the position of the outer adjusting side plate 703 is changed, the blade of the main impeller 701 is always located in the groove body of the outer arc groove 7032, the main impeller 701 rotates to drive the outer adjusting side plate 703 to rotate, when the outer adjusting side plate 703 moves towards the direction of the inner adjusting side plate 702, and the inner adjusting side plate 702 and the outer adjusting side plate 703 are located at the rear side of the main impeller 701 at the same time, the structure of the variable impeller 7 is changed into a semi-open impeller structure, and the variable impeller can be used as a centrifugal pump for oil refining chemical industry and can also be used for conveying clean water and liquid similar to clean water.
As shown in fig. 6, the inner adjusting side plate 702 includes an inner adjusting middle hole 7021, the inner adjusting middle hole 7021 is a circular groove, and the inner adjusting middle hole 7021 is opened at a middle position of the inner adjusting side plate 702; the inner arc groove 7022 is an arc groove body, and the inner arc groove 7022 is distributed on the surface of the inner adjusting side plate 702; as shown in fig. 7, the adjusting cylinder 5 includes an adjusting end cylinder 501, the adjusting end cylinder 501 is arranged at the front end of the adjusting cylinder 5, a thread is arranged on the outer wall of the adjusting end cylinder 501, and the inside of the adjusting end cylinder 501 is rotatably connected to a wheel axle 7012 through a deep groove ball bearing; the anti-skid rotary cylinder 502 is arranged at the rear end of the adjusting cylinder 5, anti-skid concave grains are arranged on the outer side wall of the adjusting end cylinder 501, and the interior of the anti-skid rotary cylinder 502 is rotatably connected to the wheel shaft 7012 through a deep groove ball bearing; when a section of thick bamboo 5 is adjusted in manual rotation, the screw thread of adjusting an end section of thick bamboo 501 forms screw drive with reciprocal regulation line 70231, thereby remove interior regulation curb plate 702, compare the regulation mode of adjusting curb plate 703 outward, regulation mode through adjusting a section of thick bamboo 5 is more simple and convenient, need not to borrow the instrument and can manually adjust, and can alleviate the wearing and tearing of spacing subassembly to inside impeller subassembly, the regulating action of interior regulation curb plate 702 is when main impeller 701 removes in order to adapt to, interior regulation curb plate 702 keeps original position, be under the semi-open state at the impeller, make main impeller 701 adjustment in-process can with outer regulation curb plate 703 laminating closely more, realize original effect.
When the adjusting main impeller 701 is clamped between the inner adjusting side plate 702 and the outer adjusting side plate 703, a closed impeller can be formed, and the closed impeller is suitable for conveying clean water, solution and other cleaning liquid with low viscosity and without particles; when the inner adjusting side plate 702 and the outer adjusting side plate 703 are both at the rear, a semi-open impeller can be formed, and the semi-open impeller is gradually applied to centrifugal pumps for oil refining and chemical engineering and is used for conveying clean water and liquid similar to the clean water; in this state, the main moving and adjusting impeller 701 moves toward the inner adjusting side plate 702 side, and the positions of the inner adjusting side plate 702 and the outer adjusting side plate 703 are controlled to be fixed, which is equivalent to reducing the width of the impeller blade.
When in use: firstly, a water inlet is connected with a water source, a driving motor 3 is started, the driving motor 3 drives a wheel shaft 7012 to rotate, a hexagonal screwdriver is used for rotating an external adjusting head 601, an internal adjusting column 6 rotates in a centrifugal pump shell 4 during rotation, the external adjusting head 601 is hidden in a counter bore 402, a sealing ring is arranged between the internal adjusting column 6 and the centrifugal pump shell 4 to improve the sealing performance, the internal adjusting column 6 rotates to form spiral transmission with a positioning screw hole 803, an outer plate limiting frame 8 is driven to move on a translation frame 9, an external adjusting side plate 703 is driven to move through a groove body on the inner side of the outer plate limiting frame 8 to change the position of the external adjusting side plate 703, a blade of a main impeller 701 is always positioned in an outer arc groove 7032 groove, the main impeller 701 rotates to drive the external adjusting side plate 703 to rotate, when the external adjusting side plate 703 moves towards the direction of the internal adjusting side plate 702, and the internal adjusting side plate 702 and the external adjusting side plate 703 are positioned on the rear side of the main impeller 701 at the same time, at the moment, the structure of the variable impeller 7 is changed into a semi-open impeller structure, the variable impeller can be used as a centrifugal pump for oil refining and chemical engineering, and can also be used for conveying clean water and liquid similar to the clean water, the adjusting cylinder 5 is adjusted, and the thread of the adjusting end cylinder 501 and the reciprocating adjusting thread 70231 form spiral transmission, so that the inner adjusting side plate 702 is moved; when the inner adjusting side plate 702 and the outer adjusting side plate 703 sandwich the adjusting main impeller 701, a closed impeller can be formed, which is suitable for conveying clean water, solution and other cleaning liquid without particles with small viscosity, and the efficiency is high, when the inner adjusting side plate 702 and the outer adjusting side plate 703 are both positioned at the rear side of the main impeller 701, a semi-open impeller can be formed, which is gradually increased in centrifugal pumps for oil refining chemical industry and used for conveying clean water and liquid similar to clean water, in this state, the adjusting main impeller 701 is moved towards the inner adjusting side plate 702 side, and the positions of the inner adjusting side plate 702 and the outer adjusting side plate 703 are controlled to be fixed, which is equivalent to reducing the width of impeller blades, according to the water pumping principle of the centrifugal pump, the smaller the width of the impeller blades, the smaller the water pumping efficiency, the operating load of the centrifugal pump is reduced, and simultaneously, the more viscous liquid can be pumped, and the impeller structure can be selected and adjusted according to the application occasion of the centrifugal pump, it can be seen that the water pump has a driving structure with various impellers, can be adjusted and used alternately, is suitable for various occasions, and improves the use universality.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a hydraulic centrifugal pump with adjustable impeller which characterized in that: comprises a base (1);
a motor base (2) is connected above the base (1) in a sliding mode, a driving motor (3) is fixedly connected onto the motor base (2), a distance adjusting shaft (101) is rotatably connected onto the base (1) through a bearing, and the distance adjusting shaft (101) and a screw hole of the motor base (2) form spiral transmission;
the lower part of the centrifugal pump shell (4) is fixedly connected to the left end of the upper surface of the base (1) through welding;
an output shaft of the driving motor (3) is connected with a shaft of the variable impeller (7) through a coupling, and the shaft of the variable impeller (7) is rotatably connected with an adjusting cylinder (5);
the inner adjusting column (6) is rotationally connected to the centrifugal pump shell (4), and a sealing ring is arranged at the connecting position of the inner adjusting column (6) and the centrifugal pump shell (4);
the centrifugal pump comprises a translation frame (9), wherein the translation frame (9) is provided with two positions, the two translation frames (9) are respectively and fixedly connected to two sides of the interior of a centrifugal pump shell (4), and an outer plate limiting frame (8) is connected to the translation frame (9) in a sliding mode.
2. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 1, wherein: the centrifugal pump casing (4) comprises:
the rear end cover (401), the rear end cover (401) is fixedly connected to the rear of the centrifugal pump casing (4) through a threaded connecting piece;
a counterbore (402), the counterbore (402) opening on the surface of the centrifugal pump casing (4).
3. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 2, wherein: the rear end cap (401) comprises:
the rear sealing screw cap (4011), the rear sealing screw cap (4011) is rotatably connected with the sealing ring on the rear end cover (401) through a bearing;
the inner telescopic rotary cover (4012), the inner telescopic rotary cover (4012) is connected in the middle of the rear sealing rotary cover (4011) in a sliding manner, and two guide through holes (40121) are further formed in the inner telescopic rotary cover (4012).
4. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 1, wherein: the adjusting cylinder (5) comprises:
the adjusting end cylinder (501), the adjusting end cylinder (501) is arranged at the front end of the adjusting cylinder (5), the outer side wall of the adjusting end cylinder (501) is provided with threads, and the inside of the adjusting end cylinder (501) is rotatably connected to the wheel shaft (7012) through a deep groove ball bearing;
the anti-skid rotary cylinder (502), the anti-skid rotary cylinder (502) is arranged at the rear end of the adjusting cylinder (5), anti-skid concave lines are arranged on the outer side wall of the adjusting end cylinder (501), and the anti-skid rotary cylinder (502) is rotatably connected to the wheel shaft (7012) through a deep groove ball bearing.
5. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 1, wherein: the inner adjusting column (6) comprises:
the outer adjusting head (601), the outer adjusting head (601) is arranged at the front end of the inner adjusting column (6), the outer adjusting head (601) is located in the middle of the counter bore (402), and a hexagonal groove is formed in the middle of the outer adjusting head (601);
the adjusting screw thread (602), the adjusting screw thread (602) is arranged on the outer wall of the inner adjusting column (6).
6. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 1, wherein: the variable impeller (7) comprises:
the impeller comprises a main impeller (701), wherein a wheel-in-wheel disc (7011) is arranged in the middle of the main impeller (701), and a wheel shaft (7012) is fixedly connected to the rear surface of the wheel-in-wheel disc (7011);
an inner adjusting side plate (702), wherein the inner adjusting side plate (702) is arranged at the rear side of the main impeller (701);
and the outer adjusting side plate (703) is arranged on the front side of the main impeller (701).
7. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 7, wherein: the inner adjusting side plate (702) comprises:
the inner adjusting middle hole (7021), the inner adjusting middle hole (7021) is a circular groove, and the inner adjusting middle hole (7021) is formed in the middle of the inner adjusting side plate (702);
the inner arc groove (7022), the inner arc groove (7022) is the arc groove body, and the inner arc groove (7022) distributes on the surface of the inner regulating lateral plate (702);
the reciprocating push block (7023), the reciprocating push block (7023) is arranged on the rear side face of the inner adjusting side plate (702), and reciprocating adjusting grains (70231) are arranged on the reciprocating push block (7023).
8. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 6, wherein: the outer adjusting side plate (703) comprises:
the liquid inlet groove (7031), the liquid inlet groove (7031) is arranged in the middle of the outer adjusting side plate (703), and the outer adjusting side plate (703) is a circular through groove;
the outer arc groove (7032) is an arc groove body, and the outer arc groove (7032) is distributed on the surface of the outer adjusting side plate (703).
9. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 1, wherein: the outer plate limiting frame (8) comprises:
the guide plate (801), the guide plate (801) is seted up in the outside of planking spacing frame (8), and sets up guide way (802) of two rectangle groove structures on guide plate (801), and set up a location screw (803) in the middle of guide plate (801), location screw (803) screwed connection adjusting thread (602).
10. The hydraulic centrifugal pump with adjustable impeller as claimed in claim 1, wherein: the translation frame (9) is composed of two parallel frame bodies, and the cross section of each translation frame (9) on two sides is of a rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881432.8A CN113494463A (en) | 2021-08-02 | 2021-08-02 | Hydraulic centrifugal pump with adjustable impeller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110881432.8A CN113494463A (en) | 2021-08-02 | 2021-08-02 | Hydraulic centrifugal pump with adjustable impeller |
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| CN113494463A true CN113494463A (en) | 2021-10-12 |
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|---|---|---|---|
| CN202110881432.8A Pending CN113494463A (en) | 2021-08-02 | 2021-08-02 | Hydraulic centrifugal pump with adjustable impeller |
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Application publication date: 20211012 |