CN111075711A - Rotor pump convenient to maintain and use method thereof - Google Patents
Rotor pump convenient to maintain and use method thereof Download PDFInfo
- Publication number
- CN111075711A CN111075711A CN202010003663.4A CN202010003663A CN111075711A CN 111075711 A CN111075711 A CN 111075711A CN 202010003663 A CN202010003663 A CN 202010003663A CN 111075711 A CN111075711 A CN 111075711A
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- China
- Prior art keywords
- fixedly connected
- rotor
- face
- pump
- box body
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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
- F04C2/12—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
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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
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/008—Enclosed motor pump units
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to the technical field of rotor pumps, in particular to a rotor pump convenient to overhaul and a using method thereof, wherein the rotor pump comprises a base and a motor, the upper end surface of the base is fixedly connected with the motor and a pump shell which are distributed leftwards and rightwards, the tail end of a main shaft of the motor is fixedly connected with a coupler, the other side of the coupler is fixedly connected with the pump shell, through holes are respectively formed in the front side and the rear side of the pump shell, the left end surface of the pump shell is fixedly connected with a shell, the inner side of the pump shell is rotatably connected with the main shaft which is distributed upwards and downwards, the outer side of the main shaft is respectively provided with a key mechanism, the key mechanism comprises a key body and; according to the invention, through the key body, the rotating ring, the threaded rod, the limiting plate and the groove, when the rotor pump is disassembled, the rotating ring is rotated through the groove, so that the threaded rod is outwards rotated, the key body can be taken out by means of the rotating ring and the threaded rod, and the rotor pump is very convenient to overhaul.
Description
Technical Field
The invention relates to the technical field of rotor pumps, in particular to a rotor pump convenient to overhaul and a using method thereof.
Background
The rotor pump is also called colloid pump, cam pump, three-blade pump, universal delivery pump, etc., the rotor pump belongs to the displacement pump, it achieves the goal of delivering fluid by means of the periodic transformation of a plurality of fixed volume delivery units in the working chamber, the mechanical energy of the electric motor is directly transformed into the pressure energy of the delivered fluid by the pump, the flow rate of the pump only depends on the volume change value of the working chamber and the change frequency of the volume change value in unit time, and is irrelevant to the discharge pressure; the rotor pump actually rotates through a pair of rotors which rotate synchronously in the working process, the rotors are driven by a pair of synchronous gears in a box body, and the rotors rotate in opposite directions synchronously under the driving of a main shaft and a secondary shaft, so that the volume of the pump is changed, and the high vacuum degree and discharge pressure are formed, and the rotor pump is particularly suitable for conveying sanitary-grade media and corrosive and high-viscosity media.
The rotor of the rotor pump has high rotating speed and heavy load of the shaft, so the requirement on the shaft is strict, and the surface of the shaft is likely to have cracks when the shaft is used for a long time; the surface of the shaft is flushed by high-speed water flow to form deep groove marks and the like, the rotor and the shaft can be directly damaged by solid impurities in water when the shaft is flushed at high speed and need to be overhauled in time, the common shaft and the rotor are connected through keys, and the keys are not easy to disassemble due to no stress points when the keys are disassembled, so that the rotor pump convenient to overhaul and the using method thereof are provided aiming at the problems.
Disclosure of Invention
The invention aims to provide a rotor pump convenient to overhaul and a using method thereof, and the rotor pump is used for solving the problem that a rotor and a main shaft are inconvenient to disassemble in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a rotor pump convenient for maintenance and a using method thereof comprise a base and a motor, wherein the upper end surface of the base is fixedly connected with the motor and a pump shell which are distributed leftwards and rightwards, the end of the motor main shaft is fixedly connected with a coupler, the other side of the coupler is fixedly connected with a pump shell, the front side and the rear side of the pump shell are both provided with through holes, the left end surface of the pump shell is fixedly connected with a shell, the inner side of the pump shell is rotatably connected with a main shaft which is distributed up and down, the outer sides of the main shafts are respectively provided with a key mechanism, the key mechanism comprises a key body and a rotating ring, the left end surface of the key body is provided with the rotating ring, the right end face of the rotating ring is fixedly connected with a threaded rod, the outer side of the threaded rod is spirally connected with the key body, the right end face of the threaded rod is fixedly connected with a limiting plate, a groove is formed in the key body, the main shaft is fixedly connected with the rotor through the key mechanism, and the front end face of the motor is fixedly connected with a wiring device.
Preferably, the limiting plate is arranged in a round cake shape, the limiting plate is arranged in the groove, a limiting groove is formed in the left end face of the rotating ring, the limiting groove is arranged in a strip shape, and the left end face of the key body is flush with the left end face of the rotating ring.
Preferably, termination includes box body and wiring dish box body rear end face and motor fixed connection, the draw-in groove has been seted up to the terminal surface before the box body, the inside fixedly connected with wiring dish of box body, wiring dish right side fixedly connected with connecting wire, the inside fixedly connected with fixed plate of box body, terminal surface fixedly connected with expanding spring under the fixed plate, another terminal surface fixedly connected with slide bar of expanding spring, the spacing carousel of slide bar outside fixedly connected with, the fixed plate right side is equipped with the pivot, pivot outside fixedly connected with clockwork spring, clockwork spring other end fixedly connected with rotates the wheel.
Preferably, the rear end face of the rotating shaft is fixedly connected with the box body, and a connecting wire is wound on the outer side of the rotating wheel.
Preferably, the connecting wire is arranged on the outer side of the limiting turntable, the rear end face of the sliding rod is connected with the box body in a sliding mode, and the inner wall of the box body is fixedly connected with the drying plate.
Preferably, the clamping groove is rectangular, a sealing gasket is arranged in the clamping groove, and the sealing gasket is composed of a rubber plate.
Preferably, the box body front side is equipped with the top cap, top cap rear end face fixedly connected with spacing cardboard, spacing cardboard is located the draw-in groove inboard, the top cap front side is equipped with evenly distributed's screw, screw outside screwed connection has top cap and box body that is front and back distribution.
Preferably, the method of use is as follows:
step 1: when the equipment is damaged and needs to be overhauled, the surface of the rotor can be directly observed by opening the shell;
step 2: when the surface of the main shaft has cracks or the rotor is damaged, the main shaft needs to be disassembled, and the rotor needs to be taken down firstly;
and step 3: at the moment, the rotor can be easily disassembled through the key mechanism, and then the rotor and the main shaft can be overhauled;
and 4, step 4: and termination's setting guarantees that its inside is difficult for weing, and the leakproofness is better, makes connecting wire can normally work.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the key body, the rotating ring, the limiting groove, the threaded rod, the limiting plate and the groove, when the rotor pump is disassembled, the rotating ring is rotated through the groove, so that the threaded rod is outwards rotated, the key body can be taken out by means of the rotating ring and the threaded rod, and the maintenance work of the rotor pump is very convenient;
2. according to the invention, through the arranged box body, the wiring disc, the connecting wire, the fixed plate and the telescopic spring, the connecting wire can be kept in a stretched state through the arranged limiting rotary disc and the rotating wheel, and when the external connecting wire receives an external pulling force, the telescopic spring and the clockwork spring have good buffering effect, so that the normal use of the equipment is ensured, and the telescopic spring has good practical value;
3. according to the invention, through the arrangement of the clamping groove, the limiting clamping plate, the sealing gasket and the drying plate, common equipment is generally in a humid environment when in use, the service life of the connecting wire is influenced, and meanwhile, safety accidents are easily caused.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a rotor structure according to the present invention;
FIG. 3 is a schematic view of the key structure of the present invention;
FIG. 4 is a cross-sectional view of the key body of the present invention;
FIG. 5 is a schematic diagram of the structure of the case according to the present invention;
FIG. 6 is a schematic view of the structure of FIG. 5 at A according to the present invention;
fig. 7 is a schematic view of the top cover mounting structure of the present invention.
In the figure: 1-base, 2-motor, 3-coupler, 4-pump shell, 5-shell, 6-key mechanism, 601-key body, 602-rotating ring, 603-limit groove, 604-threaded rod, 605-limit plate, 606-groove, 7-rotor, 8-main shaft, 9-wiring device, 901-box, 902-card groove, 903-wiring disk, 904-connecting wire, 905-fixing plate, 906-expansion spring, 907-limit dial, 908-sliding rod, 909-rotating shaft, 910-clockwork spring, 911-rotating wheel, 912-top cover, 913-screw, 914-limit card board, 915-sealing gasket, 916-drying plate and 10-through hole.
Detailed Description
Example 1:
referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the present invention provides a technical solution:
a rotor pump convenient for maintenance and a using method thereof comprise a base 1 and a motor 2, the upper end surface of the base 1 is fixedly connected with the motor 2 and a pump shell 4 which are distributed left and right, the tail end of a main shaft of the motor 2 is fixedly connected with a coupler 3, the other side of the coupler 3 is fixedly connected with the pump shell 4, the front side and the rear side of the pump shell 4 are respectively provided with a through hole 10, the left end surface of the pump shell 4 is fixedly connected with a shell 5, the inner side of the pump shell 4 is rotatably connected with a main shaft 8 which is distributed up and down, the outer side of the main shaft 8 is respectively provided with a key mechanism 6, the key mechanism 6 comprises a key body 601 and a rotating ring 602, the left end surface of the key body 601 is provided with the rotating ring 602, the right end surface of the rotating ring 602 is fixedly connected with a threaded rod 604, the outer side of the threaded rod 604 is spirally, the limiting groove 603 is arranged in a strip shape, the left end face of the key body 601 is flush with the left end face of the rotating ring 602, the key body 601, the rotating ring 602, the limiting groove 603, the threaded rod 604, the limiting plate 605 and the groove 606 are matched for use, in the maintenance process, the acting point can be conveniently found by rotating the rotating ring 602, the key body 601 can be conveniently taken out, the main shaft 8 and the rotor 7 can be conveniently replaced and maintained, the groove 606 is arranged in the key body 601, the main shaft 8 is fixedly connected with the rotor 7 through the key mechanism 6, the front end face of the motor 2 is fixedly connected with the wiring device 9, the wiring device 9 comprises a box body 901 and a wiring disc 903, the rear end face of the box body 901 is fixedly connected with the motor 2, the front end face of the box body 901 is provided with a clamping groove 902, the inside of the box body 901 is fixedly connected with the wiring disc 903, the right side of, a sliding rod 908 is fixedly connected to the other end face of the telescopic spring 906, a limit turntable 907 is fixedly connected to the outer side of the sliding rod 908, a rotating shaft 909 is arranged on the right side of the fixing plate 905, a clockwork spring 910 is fixedly connected to the outer side of the rotating shaft 909, a rotating wheel 911 is fixedly connected to the other end of the clockwork spring 910, the rear end face of the rotating shaft 909 is fixedly connected with the box body 901, a connecting wire 904 is wound on the outer side of the rotating wheel 911, the wire reel 903, the connecting wire 904, the fixing plate 905, the telescopic spring 906, the limit turntable 907, the sliding rod 908, the rotating shaft 909, the clockwork spring 910 and the rotating wheel 911 are matched for use, the connecting wire 904 can have a certain buffering effect, even if the outer side of the connecting wire 904 is subjected to pulling force, the connecting wire 904 and the connecting disk 903 can be stably connected, the, box body 901 inner wall fixedly connected with drying plate 916, draw-in groove 902 is the rectangle setting, all be equipped with sealed pad 915 in draw-in groove 902, sealed pad 915 comprises the rubber slab, and draw-in groove 902, the cooperation is used between sealed pad 915 and the drying plate 916, guarantee that box body 901 is inside to keep dry, avoid being affected by moist wet environment, guarantee connecting wire 904's life, box body 901 front side is equipped with top cap 912, top cap 912 rear end face fixedly connected with spacing cardboard 914, spacing cardboard 914 is located draw-in groove 902 inboard, top cap 912 front side is equipped with evenly distributed's screw 913, screw 913 outside screwed connection has top cap 912 and box body 901 that are front and back distribution, cooperate the use between sealed pad 915 and the spacing cardboard 914, guarantee its inside and keep the leakproofness, guarantee that the internal environment does not receive.
The using method comprises the following steps:
step 1: when the equipment is damaged and needs to be overhauled, the surface of the rotor 7 can be directly observed by opening the shell 5;
step 2: when the surface of the main shaft 8 has cracks or the rotor 7 is damaged, the main shaft needs to be disassembled, and the rotor 7 needs to be taken down firstly;
and step 3: at the moment, the rotor 7 can be easily disassembled through the key mechanism 6, and then the rotor 7 and the main shaft 8 can be overhauled;
and 4, step 4: and the wiring device 9 ensures that the interior of the wiring device is not easy to damp, and has better sealing performance, so that the connecting wire can work normally.
The working process is as follows: when the rotor pump is used, a power supply is switched on, when the rotor pump is overhauled, the shell 5 is disassembled, then whether cracks and scratches exist on the surfaces of the rotor 7 and the main shaft 8 are carefully observed, when the surfaces of the rotor 7 and the main shaft 8 are complete, the rotor 7 and the main shaft 8 do not need to be replaced, the drying plate 916 on the inner side of the box body 901 can ensure that the internal environment of the box body 901 is in a dry state, the connecting wire 904 is prevented from being damaged by moisture, the internal part of the connecting wire 904 can be ensured to be in a sealed state by the limiting clamping plate 914 and the sealing gasket 915, the external environment interference is avoided, when the connecting wire 904 is pulled due to various artificial reasons in the using process, the connecting wire 909 drives the rotating shaft 909 to rotate, the rotating shaft 909 drives the clockwork spring 910 to rotate, the connecting wire 904 drives the limiting turntable 907 to move upwards, the, the connection wire 904 and the patch panel 903 are prevented from falling off due to external reasons, and normal use of the equipment is ensured.
Example 2:
in embodiment 2, the same parts as those in embodiment 1 are not described again, except that after the housing 5 is disassembled, cracks are found on the surfaces of the rotor 7 and the main shaft 8, and at this time, the rotor 7 and the main shaft 8 need to be repaired, because the rotor is not easily disassembled under the action of the key body 601, at this time, the screw driver is inserted into the limiting groove 603, then the rotating ring 602 is rotated, the rotating ring 602 drives the threaded rod 604 to rotate, the threaded rod 604 drives the limiting plate 605 to rotate, so that the rotating ring 602 is separated from the key body 601, the limiting plate 605 is arranged to prevent the threaded rod 604 from being separated from the key body 601 in the using process, at this time, the key body 601 is easily separated from the rotor 7 and the main shaft 8 by using the rotating ring 602 and the threaded rod 604 as force-applying points, and the replacement and maintenance work with the rotor 7.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (8)
1. The utility model provides a rotor pump convenient to overhaul, includes base (1) and motor (2), its characterized in that: the motor (2) and the pump shell (4) which are distributed left and right are fixedly connected to the upper end face of the base (1), the shaft coupler (3) is fixedly connected to the tail end of a main shaft of the motor (2), the other side of the shaft coupler (3) is fixedly connected with the pump shell (4), through holes (10) are formed in the front side and the rear side of the pump shell (4), a shell (5) is fixedly connected to the left end face of the pump shell (4), the main shaft (8) which is distributed up and down is rotatably connected to the inner side of the pump shell (4), key mechanisms (6) are arranged on the outer side of the main shaft (8), each key mechanism (6) comprises a key body (601) and a rotating ring (602), a rotating ring (602) is arranged on the left end face of the key body (601), a threaded rod (604) is fixedly connected to the right end face of the rotating ring (602), the outer side of the threaded rod, the key body (601) is internally provided with a groove (606), the main shaft (8) is fixedly connected with the rotor (7) through the key mechanism (6), and the front end face of the motor (2) is fixedly connected with a wiring device (9).
2. An easy-to-service gerotor pump as claimed in claim 1, characterized in that: the limiting plate (605) is arranged in a round cake shape, the limiting plate (605) is arranged in a groove (606), a limiting groove (603) is formed in the left end face of the rotating ring (602), the limiting groove (603) is arranged in a strip shape, and the left end face of the key body (601) is flush with the left end face of the rotating ring (602).
3. An easy-to-service gerotor pump as claimed in claim 1, characterized in that: the wiring device (9) comprises a box body (901) and a wiring disc (903), the rear end face of the box body (901) is fixedly connected with the motor (2), a clamping groove (902) is arranged on the front end face of the box body (901), a wiring disc (903) is fixedly connected inside the box body (901), a connecting wire (904) is fixedly connected to the right side of the wire connecting disc (903), a fixing plate (905) is fixedly connected to the inside of the box body (901), the lower end surface of the fixed plate (905) is fixedly connected with a telescopic spring (906), the other end surface of the telescopic spring (906) is fixedly connected with a sliding rod (908), the outer side of the sliding rod (908) is fixedly connected with a limiting rotary table (907), the right side of the fixed plate (905) is provided with a rotating shaft (909), a spring (910) is fixedly connected to the outer side of the rotating shaft (909), and a rotating wheel (911) is fixedly connected to the other end of the spring (910).
4. An easy-to-service gerotor pump as claimed in claim 3, characterized in that: the rear end face of the rotating shaft (909) is fixedly connected with the box body (901), and a connecting wire (904) is wound on the outer side of the rotating wheel (911).
5. An easy-to-service gerotor pump as claimed in claim 3, characterized in that: the outer side of the limiting turntable (907) is provided with a connecting line (904), the rear end face of the sliding rod (908) is in sliding connection with the box body (901), and the inner wall of the box body (901) is fixedly connected with a drying plate (916).
6. An easy-to-service gerotor pump as claimed in claim 3, characterized in that: draw-in groove (902) are the rectangle setting, all be equipped with sealed pad (915) in draw-in groove (902), sealed pad (915) comprise the rubber slab.
7. An easy-to-service gerotor pump as claimed in claim 3, characterized in that: the front side of the box body (901) is provided with a top cover (912), the rear end face of the top cover (912) is fixedly connected with a limiting clamping plate (914), the limiting clamping plate (914) is located on the inner side of the clamping groove (902), the front side of the top cover (912) is provided with uniformly distributed screws (913), and the outer side of the screws (913) is spirally connected with the top cover (912) and the box body (901) which are distributed front and back.
8. Use of an easy-to-service rotor pump according to claims 1-7, characterized in that: the using method comprises the following steps:
step 1: when the equipment is damaged and needs to be overhauled, the surface of the rotor (7) can be directly observed by opening the shell (5);
step 2: when the surface of the main shaft (8) is cracked or the rotor (7) is damaged, the rotor (7) needs to be detached, and at the moment, the rotor (7) needs to be taken down firstly;
and step 3: at the moment, the rotor (7) can be easily disassembled through the key mechanism (6), and then the rotor (7) and the main shaft (8) can be overhauled;
and 4, step 4: and the wiring device (9) ensures that the interior of the wiring device is not easy to damp, and has better sealing performance, so that the connecting wire can work normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003663.4A CN111075711B (en) | 2020-01-03 | 2020-01-03 | Rotor pump convenient to maintain and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003663.4A CN111075711B (en) | 2020-01-03 | 2020-01-03 | Rotor pump convenient to maintain and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111075711A true CN111075711A (en) | 2020-04-28 |
| CN111075711B CN111075711B (en) | 2022-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010003663.4A Active CN111075711B (en) | 2020-01-03 | 2020-01-03 | Rotor pump convenient to maintain and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111075711B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104835A (en) * | 1993-04-16 | 1995-07-05 | 罗伯特·L·富勒顿 | Method and apparatus for engaging threaded members |
| CN201211667Y (en) * | 2008-07-11 | 2009-03-25 | 湖南省火电建设公司 | Pin puller special for mechanical equipment installation overhaul |
| CN201922226U (en) * | 2010-12-12 | 2011-08-10 | 天津铁路信号工厂 | Disassembling device for main shaft of switch machine |
| CN204476748U (en) * | 2015-01-29 | 2015-07-15 | 何祥军 | A kind of novel rotor gear pump |
| CN207245994U (en) * | 2017-07-29 | 2018-04-17 | 温州强忠机械科技有限公司 | A kind of new-type double screw pump |
| CN109962600A (en) * | 2017-12-14 | 2019-07-02 | 新昌县三元纺织科技有限公司 | Lobed rotor pump magnetic coupling structure |
-
2020
- 2020-01-03 CN CN202010003663.4A patent/CN111075711B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104835A (en) * | 1993-04-16 | 1995-07-05 | 罗伯特·L·富勒顿 | Method and apparatus for engaging threaded members |
| CN201211667Y (en) * | 2008-07-11 | 2009-03-25 | 湖南省火电建设公司 | Pin puller special for mechanical equipment installation overhaul |
| CN201922226U (en) * | 2010-12-12 | 2011-08-10 | 天津铁路信号工厂 | Disassembling device for main shaft of switch machine |
| CN204476748U (en) * | 2015-01-29 | 2015-07-15 | 何祥军 | A kind of novel rotor gear pump |
| CN207245994U (en) * | 2017-07-29 | 2018-04-17 | 温州强忠机械科技有限公司 | A kind of new-type double screw pump |
| CN109962600A (en) * | 2017-12-14 | 2019-07-02 | 新昌县三元纺织科技有限公司 | Lobed rotor pump magnetic coupling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111075711B (en) | 2022-05-06 |
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