CN111810399B - Rotor pump with pressure relief protection function - Google Patents
Rotor pump with pressure relief protection function Download PDFInfo
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- CN111810399B CN111810399B CN202010620256.8A CN202010620256A CN111810399B CN 111810399 B CN111810399 B CN 111810399B CN 202010620256 A CN202010620256 A CN 202010620256A CN 111810399 B CN111810399 B CN 111810399B
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- pressure relief
- oil outlet
- pressure
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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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
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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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a rotor pump with a pressure relief protection function, which comprises a rotor pump body, a supporting seat used for supporting the rotor pump, an oil inlet end pressure relief mechanism used for relieving the pressure at the oil inlet end of the rotor pump and an oil outlet end pressure relief mechanism used for relieving the instant pressure transmitted from the oil outlet end of the rotor pump, wherein the bottom of the rotor pump body is fixedly connected with the supporting seat, and the bottom of the supporting seat is fixedly connected with an anti-skidding damping pad. This rotor pump with pressure release protect function is according to the pressure condition that current rotor pump business turn over oil end exists, the special construction that the oil inlet end lasts decompression and the instantaneous decompression of oil outlet end is designed, high efficiency and various oil stream pressure of safe release, thereby effectual solved general rotor pump business turn over oil end all probably face very much pressure, receive the influence of the cause factor of the inside device of the pump body and external pressure, the problem of frequent damage takes place easily when using for rigid connecting tube or even the inside device of the pump body.
Description
Technical Field
The invention relates to the technical field of rotor pumps, in particular to a rotor pump with a pressure relief protection function.
Background
The rotor pump is also a three-blade pump, and achieves the purpose of conveying fluid by means of the periodic conversion of a plurality of fixed volume conveying units in a working cavity, the rotor pump can be used for conveying oil, an oil conveying oil inlet end and an oil conveying oil outlet end of the rotor pump are communicated with an inner cavity of a pump body, the oil inlet end and the oil outlet end of the rotor pump can face different pressure conditions in the oil conveying process, oil is stopped instantly at the oil inlet end, too much pressure cannot be caused, if partial pressure cannot be obtained or is interrupted upstream, the pressure of the oil inlet end of the rotor pump can be gradually increased, the pressure increase of the existing rotor pump is mainly applied to core instruments and communicating pipes in the pump, a pressure relief valve is arranged on a pipeline at present, the pressure relief valve is directly opened to relieve pressure when the pressure is sensed to be too large, but rigid pressure tests are frequently started and closed in the continuous pressure change process, the frequent impact of pressure can cause the damage to the pump body device, and the pressure of oil outlet end is when the oil outlet is obstructed, the inside device of pump body can directly receive the pressure of impact in the twinkling of an eye, different from the oil inlet end, this partial pressure is produced in the twinkling of an eye, and receive the direction that the inside impeller of pump body changes, the oil flow pressure direction of the inside of taking over the pipe is also different, on the relief valve commonly used, because the pipeline direction is unique, if the pressure direction is opposite with its relief pipeline direction, can also cause the connecting pipe to damage, general rotor pump business turn over oil end all probably faces very much pressure, receive the influence of the cause factor of the inside device of pump body and external pressure, the rigid connecting pipeline even the inside device of pump body all takes place frequent damage when using easily, so need a rotor pump with pressure relief protect function.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the rotor pump with the pressure relief protection function, and solves the problems that the oil inlet end and the oil outlet end of a common rotor pump are likely to face extreme pressure, are influenced by the factors of internal devices and external pressure of a pump body, and the rigid connecting pipeline and even the internal devices of the pump body are easily damaged frequently during use.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a gerotor pump with pressure release protect function has pressure release protect function, includes the gerotor pump body, is used for supporting the supporting seat of gerotor pump, is used for unloading the oil inlet end pressure release mechanism of gerotor pump oil inlet end pressure and is used for unloading the end pressure release mechanism that produces oil that the transmission of gerotor pump oil outlet end department comes pressure in the twinkling of an eye, the bottom fixedly connected with supporting seat of the gerotor pump body, the bottom fixedly connected with anti-skidding shock pad of supporting seat, the oil inlet end of the gerotor pump body and the first flange of the equal fixedly connected with of end that produces oil, oil inlet end pressure release mechanism sets up the oil inlet end department at the gerotor pump body, it sets up the end department that produces oil at the gerotor pump body to produce oil end pressure release mechanism.
Preferably, the oil inlet end pressure relief mechanism includes that the oil inlet end connects siphunculus, bypass pressure relief pipe and the interior bushing pipe of oil inlet end, the one end that the oil inlet end connects the siphunculus is connected with the oil inlet end of the rotor pump body through the first flange of oil inlet end department, the inside that the bushing pipe cover was established at the oil inlet end connects the siphunculus in the oil inlet end, the one end of bypass pressure relief pipe runs through oil inlet end and connects siphunculus and the interior bushing pipe of oil inlet end and extend to the inside of the interior bushing pipe of oil inlet end, the inside one end that the bypass pressure relief pipe is located the inside of oil inlet end bushing pipe flushes with the inner wall of the interior bushing pipe of oil inlet pipe.
Preferably, one end of the oil inlet end lining pipe is communicated with an external oil pipe, an oil inlet pressure relief cavity is formed between the surface of the oil inlet end lining pipe and the inner wall of the oil inlet end communicating pipe, the material of the oil inlet end lining pipe comprises rubber, a plurality of conducting rods which are distributed circumferentially are fixedly connected to the inner wall of the oil inlet pressure relief cavity, each conducting rod is fixedly connected to two arc-shaped elastic electricity connecting pieces which are symmetrically distributed by taking the central line of the surface of a conducting ball as the central line, an insulating layer is arranged inside the oil inlet end communicating pipe, the surface of each arc-shaped elastic electricity connecting piece is connected with the inner wall of the insulating layer in a sliding mode, a plurality of vertical buffer springs which correspond to the conducting rods one to one are fixedly connected to the inner wall of the insulating layer, and one end of each vertical buffer spring is fixedly connected with the surface of each conducting rod.
Preferably, the inner wall of the bypass pressure relief pipe is fixedly connected with an oil inlet end electromagnetic pressure relief valve, the bypass pressure relief pipe is made of an insulating material, and the two arc-shaped elastic electric connection pieces close to the bypass pressure relief pipe are respectively connected with an external power supply and the oil inlet end electromagnetic pressure relief valve through leads.
Preferably, the oil outlet end pressure relief mechanism comprises an oil outlet end communicating pipe, a plurality of movable pressure relief pipes and an oil outlet end lining pipe, wherein one end of the oil outlet end lining pipe is communicated with an external oil pipe, one end of the oil outlet end communicating pipe is connected with the oil outlet end of the rotor pump body through a first connecting flange at the oil outlet end, the oil outlet end lining pipe is sleeved in the oil outlet end communicating pipe, a plurality of movable openings which correspond to the movable pressure relief pipes one to one are formed in the surface of the oil outlet end communicating pipe, one end of each movable pressure relief pipe penetrates through the oil outlet end communicating pipe and the oil outlet end lining pipe through the movable openings and extends to the inside of the oil outlet end lining pipe, one end of the oil outlet end lining pipe, which is positioned in the oil outlet end lining pipe, is flush with the inner wall of the oil outlet pipe lining pipe, the surfaces of the movable pressure relief pipes are all inclined, and the movable pressure relief pipes are distributed on the surface of the oil outlet end communicating pipe in a circumference manner at equal intervals, the surface of the movable pressure relief pipe is fixedly connected with an elastic rubber pipe, and the surface of the elastic rubber pipe is fixedly connected with the inner wall of the movable opening.
Preferably, it hinders oil pressure release chamber to be provided with between the inner wall that the surface of the interior bushing pipe of play oil end and play oil end connect the siphunculus, the fixed surface that the interior bushing pipe of play oil end is connected with a plurality of and is the movable buffer pole that equidistance circumference distributes, the fixed surface that the inner wall fixedly connected with a plurality of and the movable buffer pole one-to-one of play oil end connect the siphunculus, adjacent two all be provided with a movable buffer pole and a fixed buffer pole between the activity pressure release pipe, the activity pressure release pipe and the junction fixedly connected with oblique point buffer pole of the interior bushing pipe of play oil end, the equal fixedly connected with in surface of oblique point buffer pole and movable buffer pole of oblique point buffer pole presses the buffering spring, the one end of pressing the buffering spring is connected with the fixed surface of fixed buffer pole, and oblique point buffer pole between two adjacent activity pressure release pipes are the equal triangular distribution with fixed buffer pole.
Preferably, each the equal fixed mounting in inner wall of activity pressure release pipe has an oil end electromagnetism relief valve, each the equal fixed mounting in surface of fixed buffer pole has a travel switch with oil feed end electromagnetism relief valve one-to-one, travel switch's output is connected with oil feed end electromagnetism relief valve's input electricity, travel switch overlaps the inside at the interior pressure buffering spring between fixed buffer pole and the activity buffer pole is established, the oil feed end connects the surface of siphunculus and goes out the equal fixedly connected with second flange in surface of oil end siphunculus.
(III) advantageous effects
(1) By arranging the oil inlet end pressure relief mechanism, the internal diameter of the oil inlet end communicating pipe can be continuously expanded when the oil inlet end duck is gradually increased, the elastic structure in the communicating pipe counteracts most pressure of the pipeline, and buffer time is provided for opening and stopping of the shunting pressure relief pipeline, so that the problem that the internal structure of the pump body and the pipeline are damaged due to large impact caused by frequent opening and closing of the valve and too fast pressure release and switching is avoided.
(2) The oil outlet end pressure relief mechanism is arranged, so that instant resistance generated by the oil outlet end can be buffered and absorbed, the situation that the pump body is damaged by instant recoil force is avoided, the pipeline for pressure division is arranged in the circumferential direction, the branch pipe at the position with higher pressure is controlled nearby through the travel switch to lead oil to be introduced first, the pressure is rapidly released, and the pipeline damage is avoided.
(3) The invention can comprehensively buffer and uniformly transmit local pressure by arranging the internal pressure buffer springs, the oblique point buffer rods, the fixed buffer rods and the movable buffer rods, and further can comprehensively transmit and release the internal pressure of the through pipe by the plurality of internal pressure buffer springs, the oblique point buffer rods, the fixed buffer rods and the movable buffer rods, thereby greatly relieving the pressure of the pipeline.
(4) According to the invention, according to the pressure condition of the oil inlet and outlet ends of the existing rotor pump, the special structure of continuous pressure reduction of the oil inlet end and instantaneous pressure reduction of the oil outlet end is designed, and various oil flow pressures are efficiently and safely released, so that the problems that the oil inlet and outlet ends of the general rotor pump are possibly exposed to extreme pressure and influenced by factors caused by internal devices and external pressure of a pump body, and a rigid connecting pipeline and even internal devices of the pump body are easily frequently damaged in use are effectively solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of an oil inlet end feed-through tube structure of the present invention;
FIG. 3 is a cross-sectional view of the oil outlet end access tube structure of the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 3 according to the present invention.
Wherein, 1 rotor pump body, 2 supporting seats, 3 oil inlet end pressure relief mechanisms, 31 oil inlet end through pipes, 32 bypass pressure relief pipes, 33 oil inlet end lining pipes, 34 oil inlet pressure relief cavities, 35 conducting rods, 36 arc elastic connecting pieces, 37 insulating layers, 38 oil inlet end electromagnetic pressure relief valves, 39 vertical buffer springs, 4 oil outlet end pressure relief mechanisms, 41 oil outlet end through pipes, 42 movable pressure relief pipes, 43 oil outlet end lining pipes, 44 movable openings, 45 elastic rubber pipes, 46 oil resistance pressure relief cavities, 47 movable buffer rods, 48 fixed buffer rods, 49 oblique point buffer rods, 410 internal pressure buffer springs, 411 oil outlet end electromagnetic pressure relief valves, 412 travel switches, 413 second connecting flanges, 5 anti-skid shock pads and 6 first connecting flanges.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, an embodiment of the present invention provides a rotor pump with a pressure relief protection function, including a rotor pump body 1, a support base 2 for supporting the rotor pump, an oil inlet end pressure relief mechanism 3 for relieving pressure at an oil inlet end of the rotor pump, and an oil outlet end pressure relief mechanism 4 for relieving instant pressure transmitted from the oil outlet end of the rotor pump, where the bottom of the rotor pump body 1 is fixedly connected with the support base 2, the bottom of the support base 2 is fixedly connected with an anti-skid damping pad 5, both the oil inlet end and the oil outlet end of the rotor pump body 1 are fixedly connected with a first connecting flange 6, the oil inlet end pressure relief mechanism 3 is disposed at the oil inlet end of the rotor pump body 1, and the oil outlet end pressure relief mechanism 4 is disposed at the oil outlet end of the rotor pump body 1.
The oil inlet end pressure relief mechanism 3 comprises an oil inlet end through pipe 31, a bypass pressure relief pipe 32 and an oil inlet end lining pipe 33, one end of the oil inlet end through pipe 31 is connected with the oil inlet end of the rotor pump body 1 through a first connecting flange 6 at the oil inlet end, the oil inlet end lining pipe 33 is sleeved inside the oil inlet end through pipe 31, one end of the bypass pressure relief pipe 32 penetrates through the oil inlet end through pipe 31 and the oil inlet end lining pipe 33 and extends to the inside of the oil inlet end lining pipe 33, one end of the bypass pressure relief pipe 32 located inside the oil inlet end lining pipe 33 is flush with the inner wall of the oil inlet pipe lining pipe, one end of the oil inlet end lining pipe 33 is communicated with an external oil pipe, an oil inlet pressure relief cavity 34 is arranged between the surface of the oil inlet end lining pipe 33 and the inner wall of the oil inlet end through pipe 31, the material of the oil inlet end lining pipe 33 comprises rubber, and a plurality of conducting rods 35 which are circumferentially distributed are fixedly connected to the inner wall of the oil inlet pressure relief cavity 34, the surface of each conducting rod 35 is fixedly connected with two arc elastic electric connecting pieces 36 which are symmetrically distributed by taking the central line of the surface of the conducting ball as the central line, an insulating layer 37 is arranged inside the oil inlet end connecting pipe 31, the surface of each arc elastic electric connecting piece 36 is in sliding connection with the inner wall of the insulating layer 37, the inner wall of the insulating layer 37 is fixedly connected with a plurality of vertical buffer springs 39 which are in one-to-one correspondence with the conducting rods 35, one ends of the vertical buffer springs 39 are fixedly connected with the surface of the conducting rods 35, the inner wall of the bypass pressure relief pipe 32 is fixedly connected with an oil inlet end electromagnetic pressure relief valve 38, the bypass pressure relief pipe 32 is made of an insulating material, and the two arc elastic electric connecting pieces 36 close to the bypass pressure relief pipe 32 are respectively connected with an external power supply and the oil inlet end electromagnetic pressure relief valve 38 through conducting wires.
The oil outlet end pressure relief mechanism 4 comprises an oil outlet end communicating pipe 41, a plurality of movable pressure relief pipes 42 and an oil outlet end lining pipe 43, wherein one end of the oil outlet end lining pipe 43 is communicated with an external oil pipe, one end of the oil outlet end communicating pipe 41 is connected with the oil outlet end of the rotor pump body 1 through a first connecting flange 6 at the oil outlet end, the oil outlet end lining pipe 43 is sleeved inside the oil outlet end communicating pipe 41, the surface of the oil outlet end communicating pipe 41 is provided with a plurality of movable openings 44 which are in one-to-one correspondence with the movable pressure relief pipes 42, one ends of the movable pressure relief pipes 42 penetrate through the oil outlet end communicating pipe 41 and the oil outlet end lining pipe 43 through the movable openings 44 and extend to the inside of the oil outlet end lining pipe 43, one end of the oil outlet end lining pipe 43 inside the oil outlet end lining pipe 43 is flush with the inner wall of the oil outlet pipe, the surfaces of the movable pressure relief pipes 42 are inclined, the movable pressure relief pipes 42 are circumferentially distributed on the surface of the oil outlet end communicating pipe 41 at equal intervals, an elastic rubber tube 45 is fixedly connected to the surface of the movable pressure relief tube 42, the surface of the elastic rubber tube 45 is fixedly connected with the inner wall of the movable port 44, an oil blocking pressure relief cavity 46 is arranged between the surface of the oil outlet end lining tube 43 and the inner wall of the oil outlet end communicating tube 41, a plurality of movable buffer rods 47 which are distributed in a circumferential manner at equal intervals are fixedly connected to the surface of the oil outlet end lining tube 43, a plurality of fixed buffer rods 48 which correspond to the movable buffer rods 47 one by one are fixedly connected to the inner wall of the oil outlet end communicating tube 41, a movable buffer rod 47 and a fixed buffer rod 48 are respectively arranged between two adjacent movable pressure relief tubes 42, a slant point buffer rod 49 is fixedly connected to the joint of the movable pressure relief tube 42 and the oil outlet end lining tube 43, an inner pressure buffer spring 410 is fixedly connected to the surface of the slant point buffer rod 49 and the surface of the movable buffer rod 47, one end of the inner pressure buffer spring 410 is fixedly connected with the surface of the fixed buffer rods 48, oblique point buffer rod 49 between two adjacent movable pressure release pipes 42 is triangular distribution such as with fixed buffer rod 48, the equal fixed mounting of inner wall of each movable pressure release pipe 42 has an oil outlet end electromagnetic relief valve 411, the equal fixed mounting in surface of each fixed buffer rod 48 has a travel switch 412 with oil inlet end electromagnetic relief valve 38 one-to-one, travel switch 412's output is connected with the input electricity of oil inlet end electromagnetic relief valve 38, travel switch 412 cover is established in the inside of the interior pressure buffering spring 410 between fixed buffer rod 48 and movable buffer rod 47, the equal fixedly connected with second flange 413 in surface of oil inlet end through pipe 31 and the surface of oil outlet end through pipe 41.
When the electromagnetic pressure relief valve is used, a power supply is connected, the oil inlet end lining pipe 33 is connected with an external oil inlet pipe, the oil outlet end lining pipe 43 is connected with an external oil discharge pipe, the bypass pressure relief pipe 32 and each movable pressure relief pipe 42 can also be connected with an external oil pipe, the rotor pump body 1 is started, oil flows enter the rotor pump body 1 through the oil inlet end lining pipe 33 and then are discharged through the oil outlet end lining pipe 43, when the pressure of the oil inlet end is gradually increased, the oil inlet end lining pipe 33 is expanded and enables each arc-shaped elastic electric connection piece 36 to deform so as to offset most of pipeline pressure, when the pressure enables each arc-shaped elastic electric connection piece 36 to be connected to form a complete circuit, the oil inlet end electromagnetic pressure relief valve 38 is connected with the power supply and opened, the oil flows are discharged through the bypass pressure relief pipe 32 to relieve pressure, when the pressure is not enough to support the arc-shaped elastic electric connection piece 36 to be greatly deformed, each arc-shaped elastic electric connection piece 36 is separated, oil feed end electromagnetism relief valve 38 closes and no longer discharges oil outward, when the oil outlet end is obstructed and takes place instantaneous reaction force, elasticity rubber tube 45, the interior bushing pipe 43 of oil outlet end and each interior pressure buffering spring 410 take place the elastic change, comprehensive even dispersion transmission pressure, and travel switch 412 receives the inside oil outlet end electromagnetism relief valve 411 of the inside movable pressure relief pipe 42 of near the impact precedent control on the great position of instantaneous pressure and opens, the pressure in this angle is released earlier, when pressure is not enough to support elasticity rubber tube 45, the interior bushing pipe 43 of oil outlet end and each interior pressure buffering spring 410 take place the elastic change, each movable pressure relief pipe 42 stops to discharge oil.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (4)
1. The utility model provides a rotor pump with pressure release protect function, includes the rotor pump body (1), is used for supporting seat (2) of rotor pump, is used for unloading oil feed end pressure release mechanism (3) of rotor pump oil feed end pressure and is used for unloading the delivery of rotor pump oil feed end department and come oil outlet end pressure release mechanism (4) of pressure in the twinkling of an eye, its characterized in that: the bottom of the rotor pump body (1) is fixedly connected with a supporting seat (2), the bottom of the supporting seat (2) is fixedly connected with an anti-skidding damping pad (5), both the oil inlet end and the oil outlet end of the rotor pump body (1) are fixedly connected with a first connecting flange (6), the oil inlet end pressure relief mechanism (3) is arranged at the oil inlet end of the rotor pump body (1), and the oil outlet end pressure relief mechanism (4) is arranged at the oil outlet end of the rotor pump body (1);
the oil inlet end pressure relief mechanism (3) comprises an oil inlet end through pipe (31), a bypass pressure relief pipe (32) and an oil inlet end lining pipe (33), one end of the oil inlet end through pipe (31) is connected with the oil inlet end of the rotor pump body (1) through a first connecting flange (6) at the oil inlet end, the oil inlet end lining pipe (33) is sleeved inside the oil inlet end through pipe (31), one end of the bypass pressure relief pipe (32) penetrates through the oil inlet end through pipe (31) and the oil inlet end lining pipe (33) and extends to the inside of the oil inlet end lining pipe (33), one end of the bypass pressure relief pipe (32) inside the oil inlet end lining pipe (33) is flush with the inner wall of the oil inlet pipe lining pipe, one end of the oil inlet end lining pipe (33) is communicated with an external oil pipe, an oil inlet pressure relief cavity (34) is arranged between the surface of the oil inlet end lining pipe (33) and the inner wall of the oil inlet end through pipe (31), the material of bushing pipe (33) in the oil feed end includes rubber, the inner wall fixedly connected with a plurality of conducting rods (35) that are the circumference and distribute in pressure release chamber (34) of oil feed, the equal fixedly connected with in surface of each conducting rod (35) is two arc elasticity electricity connection pieces (36) that are the symmetric distribution with the central line on conductive ball surface as the central line, the inside that the oil feed end connects siphunculus (31) is provided with insulating layer (37), the surface of arc elasticity electricity connection piece (36) and the inner wall sliding connection of insulating layer (37), the inner wall fixedly connected with of insulating layer (37) a plurality of vertical buffering spring (39) that correspond one-to-one with conducting rod (35), the one end of vertical buffering spring (39) is connected with the fixed surface of conducting rod (35), the inner wall fixedly connected with oil feed end electromagnetism relief valve (38) of bypass pressure release pipe (32), the bypass pressure relief pipe (32) is made of an insulating material, and two arc-shaped elastic electric connecting pieces (36) close to the bypass pressure relief pipe (32) are respectively connected with an external power supply and an oil inlet end electromagnetic pressure relief valve (38) through leads.
2. The rotory pump having a pressure relief protection function according to claim 1, wherein: the oil outlet end pressure relief mechanism (4) comprises an oil outlet end communicating pipe (41), a plurality of movable pressure relief pipes (42) and an oil outlet end lining pipe (43), one end of the oil outlet end lining pipe (43) is communicated with an external oil pipe, one end of the oil outlet end communicating pipe (41) is connected with the oil outlet end of the rotor pump body (1) through a first connecting flange (6) at the oil outlet end, the oil outlet end lining pipe (43) is sleeved inside the oil outlet end communicating pipe (41), the surface of the oil outlet end communicating pipe (41) is provided with a plurality of movable openings (44) which correspond to the movable pressure relief pipes (42) one by one, one end of each movable pressure relief pipe (42) penetrates through the oil outlet end communicating pipe (41) and the oil outlet end lining pipe (43) through the movable openings (44) and extends to the inside of the oil outlet end lining pipe (43), one end of the oil outlet end lining pipe (43) positioned inside the oil outlet end lining pipe (43) is flushed with the inner wall of the oil outlet pipe lining pipe, the surface of a plurality of activity pressure release pipe (42) all is the slope form, a plurality of activity pressure release pipe (42) are the circumference of equidistance and distribute on the surface that goes out oil end and connect through pipe (41), the fixed surface of activity pressure release pipe (42) is connected with elasticity rubber tube (45), the surface of elasticity rubber tube (45) and the inner wall fixed connection of activity mouth (44).
3. The rotory pump having a pressure relief protection function according to claim 2, wherein: an oil blocking pressure relief cavity (46) is arranged between the surface of the oil outlet end lining pipe (43) and the inner wall of the oil outlet end communicating pipe (41), a plurality of movable buffer rods (47) which are distributed in a circumferential manner at equal intervals are fixedly connected to the surface of the oil outlet end lining pipe (43), a plurality of fixed buffer rods (48) which correspond to the movable buffer rods (47) in a one-to-one manner are fixedly connected to the inner wall of the oil outlet end communicating pipe (41), a movable buffer rod (47) and a fixed buffer rod (48) are respectively arranged between every two adjacent movable pressure relief pipes (42), an oblique point buffer rod (49) is fixedly connected to the joint of each movable pressure relief pipe (42) and the oil outlet end lining pipe (43), an internal pressure buffer spring (410) is fixedly connected to the surface of the oblique point buffer rod (49) and the surface of the movable buffer rod (47), one end of the internal pressure buffer spring (410) is fixedly connected to the surface of the fixed buffer rods (48), the inclined point buffer rods (49) between two adjacent movable pressure relief pipes (42) and the fixed buffer rods (48) are distributed in an equal triangular manner.
4. The rotory pump having a pressure relief protection function according to claim 3, wherein: each the equal fixed mounting in inner wall of activity pressure release pipe (42) has an oil end electromagnetism relief valve (411), each the equal fixed mounting in surface of fixed buffer pole (48) have one with go out oil end electromagnetism relief valve (411) one-to-one travel switch (412), the output of travel switch (412) is connected with the input electricity of oil feed end electromagnetism relief valve (38), travel switch (412) cover is established in the inside of the interior pressure buffering spring (410) between fixed buffer pole (48) and activity buffer pole (47), the oil feed end connects the surface of siphunculus (31) and goes out the equal fixedly connected with second flange (413) in surface of oil end siphunculus (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620256.8A CN111810399B (en) | 2020-06-30 | 2020-06-30 | Rotor pump with pressure relief protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620256.8A CN111810399B (en) | 2020-06-30 | 2020-06-30 | Rotor pump with pressure relief protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111810399A CN111810399A (en) | 2020-10-23 |
| CN111810399B true CN111810399B (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010620256.8A Active CN111810399B (en) | 2020-06-30 | 2020-06-30 | Rotor pump with pressure relief protection function |
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| CN112994318B (en) * | 2021-02-05 | 2022-05-13 | 蕉岭县飞扬机电有限公司 | Dustproof motor |
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| GB581441A (en) * | 1942-12-12 | 1946-10-14 | Pesco Products Co | Improvements in or relating to multiple discharge pumps |
| JP6422241B2 (en) * | 2013-07-30 | 2018-11-14 | 株式会社山田製作所 | Oil pump |
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| CN206144812U (en) * | 2016-08-24 | 2017-05-03 | 浙江威隆机械科技有限公司 | Pressure relief device of impeller pump |
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2020
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