CN117307460B - Control device for motor-driven hydraulic pump - Google Patents
Control device for motor-driven hydraulic pump Download PDFInfo
- Publication number
- CN117307460B CN117307460B CN202311595572.4A CN202311595572A CN117307460B CN 117307460 B CN117307460 B CN 117307460B CN 202311595572 A CN202311595572 A CN 202311595572A CN 117307460 B CN117307460 B CN 117307460B
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- control
- hydraulic pump
- hydraulic
- motor
- control shaft
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- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses control equipment of a hydraulic pump driven by a motor, and relates to the technical field of hydraulic pumps. The hydraulic control system comprises an electric hydraulic pump and a hydraulic control pipe, wherein a control shaft capable of automatically rotating is arranged in the hydraulic control pipe, the temperature of the control shaft is controllable, a control spiral blade and a flow-around spiral blade are sleeved on the outer side of the control shaft, filtering holes capable of filtering metal chips are uniformly formed in the flow-around spiral blade, the spiral directions and the spiral distances of the control spiral blade and the flow-around spiral blade are the same, the control spiral blade and the flow-around spiral blade can slide along the control shaft, the control shaft is internally hollow, and magnetic blocks are arranged in the control shaft. According to the hydraulic pump, the oil flow speed is controlled, meanwhile, the oil pressure and the oil temperature are controlled, other equipment is not required to be additionally used for controlling, the structure is compact, the oil can be cleaned, and the service life of the hydraulic pump can be greatly prolonged.
Description
Technical Field
The invention relates to the technical field of hydraulic pumps, in particular to control equipment of a hydraulic pump driven by a motor.
Background
An electric hydraulic pump is a hydraulic component that provides pressurized fluid to a hydraulic transmission, and is a type of pump. Its function is to convert the mechanical energy of power machine (such as electric motor and internal combustion engine) into the pressure energy of liquid.
In China patent (application number: CN 202211311783.6), an electric hydraulic pump is disclosed, comprising a hydraulic pump body comprising a ball valve assembly, an oil outlet, an oil return and a first connection. The oil outlet is communicated with the oil return passage through the first connecting passage, an oil return ring is arranged in the first connecting passage, the ball valve assembly is positioned in the first connecting passage, and the cross section of a through hole of the oil return ring is smaller than the maximum cross section of a ball valve I in the ball valve assembly; the electric hydraulic pump further comprises a first motor, an oil return rod and a cam assembly, the cam assembly is mounted on an output shaft of the first motor, one end of the oil return rod is abutted against the cam assembly, the other end of the oil return rod is located in the first connecting path and connected with the ball valve assembly, and an encoder is mounted on the output shaft of the first motor.
Compared with the prior art, the patent has the following technical problems in the actual use process:
1. compared with the prior art, the hydraulic pump can only simply control the flow of the oil way, but in the actual use process, the hydraulic pump has load when being started, so that the starting time of the electric pump is longer, and the time requirement of the hydraulic system for building pressure is difficult to meet.
2. After the hydraulic pump is used for a long time, a large amount of metal chips can be accumulated in the oil liquid due to friction among all metal pieces, the service life of the hydraulic pump can be influenced due to untimely cleaning of the metal chips, the oil liquid can not be cleaned while flow control in the prior art, the oil liquid needs to be completely emptied and cleaned, and the cleaning effect is low.
3. In the use process of the existing hydraulic pump, the oil liquid is unstable in temperature due to friction between the oil liquid and the inner wall of the hydraulic pump, the temperature of the oil liquid is too high, the viscosity of the oil liquid is reduced, and the internal leakage is serious; too low an oil temperature and too high an oil viscosity result in the hydraulic pump not being able to suck out the oil.
Disclosure of Invention
The invention aims at: the invention provides control equipment of a hydraulic pump driven by a motor, which aims to solve the problems of long hydraulic starting time, low oil cleaning efficiency and high oil stability control difficulty.
The invention adopts the following technical scheme for realizing the purposes:
the control equipment of the hydraulic pump driven by the motor comprises an electric hydraulic pump and a hydraulic control pipe, wherein a liquid inlet pipe is arranged on the outer side of the hydraulic control pipe, the liquid inlet pipe is communicated with a liquid outlet end of the electric hydraulic pump, an electromagnetic valve is arranged in the liquid inlet pipe, and a liquid outlet is formed in the right side of the hydraulic control pipe;
the inside of the hydraulic control pipe is provided with a control shaft capable of automatically rotating, the temperature of the control shaft is controllable, the outer side of the control shaft is sleeved with a control helical blade and a flow-around helical blade, filtering holes capable of filtering metal chips are uniformly formed in the flow-around helical blade, the helical directions and the helical distances of the control helical blade and the flow-around helical blade are the same, and the control helical blade and the flow-around helical blade can slide along the control shaft;
the inside cavity design of control axle, the internally mounted of control axle has the magnetic path, the drain has been seted up to the outside of control axle, control helical blade can block up the drain.
Preferably, a motor frame is arranged on the left side of the hydraulic control tube, a control motor is arranged on the outer side of the motor frame, and a driving wheel is arranged at the output end of the control motor;
the left side of the hydraulic control pipe is rotatably provided with a driven wheel, the driven wheel is meshed with the driving wheel, and the driven wheel is fixedly connected with the control shaft.
Preferably, an axial key is arranged on the outer side of the control shaft, a second groove is formed in the inner side of the flow-around helical blade, the axial key is inserted into the second groove, a top plate is arranged on the right side of the control shaft, a top spring is arranged between the top plate and the flow-around helical blade, and the top spring is used for driving the flow-around helical blade to be far away from the top plate;
the left side of hydraulic control pipe inner wall is provided with the top ring, the edge of top ring is wave type design, the top ring cup joints in the outside of control shaft, the left side of spiral blade of detouring is provided with the ejector pin, the ejector pin is contacted with the edge of top ring mutually.
Preferably, a screw hole is formed in the driven wheel, an adjusting screw is rotatably mounted on the left side of the control screw blade, the adjusting screw is in threaded connection with the screw hole, a first groove is formed in the inner side of the control screw blade, and the shaft key is inserted into the first groove.
Preferably, a sleeve is fixedly connected to the left side of the control spiral blade, and the adjusting screw is rotatably arranged on the left side of the sleeve.
Preferably, the sewage outlet is arc-shaped, and the arc track is identical to the spiral track of the control spiral blade.
Preferably, a support bracket is arranged on the outer side of the motor frame, a temperature controller is arranged in the support bracket, the temperature controller can heat and refrigerate, a temperature control pipe is arranged on the outer side of the temperature controller, and the temperature control pipe is inserted into the control shaft;
the inside of hydraulic control pipe is provided with the stull, the control axle rotates to be installed on the stull, the internally mounted of stull has temperature sensor.
Preferably, the inside grafting of control axle has the heat conduction cover, the heat conduction cover cup joints on the temperature control pipe, the outside annular of heat conduction cover is seted up flutedly, the magnetic path is installed in the recess, the multiunit internal thread has been seted up to the inner wall of control axle, and the heat conduction cover is located between the adjacent internal thread, the internal thread of internal thread is connected with the positioning screw sleeve, the positioning screw sleeve cup joints on the temperature control pipe.
Preferably, the depth of the groove is larger than the thickness of the magnetic block.
Preferably, a rotary sealing ring is arranged between the control shaft and the hydraulic control pipe, a bracket is arranged on the outer side of the electric hydraulic pump, and the hydraulic control pipe is arranged on the bracket.
The beneficial effects of the invention are as follows:
according to the invention, the flow control helical blade is arranged in the hydraulic control pipe, so that oil can flow out along a helical track after entering the hydraulic control pipe, the control shaft is controlled to rotate, the flow control helical blade is driven to rotate by the control shaft, the flow control helical blade carries oil in a helical manner to flow out, the oil flow speed can be accurately controlled by controlling the rotational speed of the flow control helical blade, the rotational speed of the flow control helical blade is increased, the conveying speed of the oil can be increased, the pressure of the oil can be increased, and a larger hydraulic pressure can be generated when the hydraulic device is started initially, so that the starting effect is good.
According to the invention, through the arrangement of the flow-around spiral blades, the flow-around spiral blades are controlled to slide along the control shaft while oil is conveyed, the flow-around spiral blades slide back and forth between the control spiral blades to filter the oil between the control spiral blades, the magnetic blocks are arranged in the control shaft and can absorb metal scraps on the control shaft, then the control spiral blades slide, the control spiral blades enable the sewage outlet to be opened, and the flow-around spiral blades slide to push scraps into the sewage outlet, so that oil cleaning can be automatically completed, and the oil conveying quality is high.
According to the invention, the temperature of the oil flowing through the hydraulic control pipe is controlled by changing the temperature of the control shaft, and the oil is in spiral conveying and is in contact with the control shaft for a longer time, and meanwhile, the oil is stirred by reciprocating sliding of the circulating spiral blades, so that the temperature of the oil is uniform in change, and the control effect is good.
In summary, the hydraulic pump control device controls the oil pressure and the temperature while controlling the oil flow rate, does not need to additionally use other equipment for control, has a compact structure, can clean the oil, and can greatly prolong the service life of the hydraulic pump.
Drawings
FIG. 1 is a schematic overall view of the present invention;
FIG. 2 is a schematic view of a hydraulic control tube of the present invention;
FIG. 3 is a schematic cross-sectional view of a hydraulic control tube of the present invention;
FIG. 4 is a control shaft schematic of the present invention;
FIG. 5 is a schematic cross-sectional view of a control shaft of the present invention;
FIG. 6 is a schematic view of a heat conducting jacket of the present invention;
FIG. 7 is a schematic view of a control helical blade of the present invention;
FIG. 8 is a schematic view of a wrap screw blade of the present invention.
Reference numerals: 1. an electric hydraulic pump; 2. a bracket; 3. a hydraulic control tube; 31. a liquid inlet pipe; 32. a liquid outlet; 33. a cross brace; 34. a temperature sensor; 35. a control shaft; 351. an axle key; 352. a top plate; 353. a top spring; 354. a sewage outlet; 36. controlling the helical blade; 361. a first groove; 362. a sleeve; 363. adjusting a screw; 37. a streaming helical blade; 371. a second groove; 372. a push rod; 38. a temperature controller; 39. a temperature control tube; 310. a heat conducting sleeve; 311. a magnetic block; 312. positioning the screw sleeve; 313. driven wheel; 314. a screw hole; 315. a motor frame; 316. controlling a motor; 317. a driving wheel; 318. a top ring; 319. rotating the sealing ring; 4. a solenoid valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
A control apparatus of a motor-driven hydraulic pump according to a preferred embodiment of the present invention will be described in detail below.
1-8, a control device of a hydraulic pump driven by a motor comprises an electric hydraulic pump 1 and a hydraulic control pipe 3, wherein a liquid inlet pipe 31 is arranged on the outer side of the hydraulic control pipe 3, the liquid inlet pipe 31 is communicated with a liquid outlet end of the electric hydraulic pump 1, an electromagnetic valve 4 is arranged in the liquid inlet pipe 31, and a liquid outlet 32 is formed on the right side of the hydraulic control pipe 3;
the inside of the hydraulic control pipe 3 is provided with a control shaft 35 capable of automatically rotating, the temperature of the control shaft 35 is controllable, the outer side of the control shaft 35 is sleeved with a control helical blade 36 and a flow-around helical blade 37, filtering holes capable of filtering metal chips are uniformly formed in the flow-around helical blade 37, the helical directions and helical intervals of the control helical blade 36 and the flow-around helical blade 37 are the same, and the control helical blade 36 and the flow-around helical blade 37 can slide along the control shaft 35;
the control shaft 35 is hollow, the magnetic block 311 is arranged in the control shaft 35, the drain outlet 354 is arranged on the outer side of the control shaft 35, and the control spiral blade 36 can plug the drain outlet 354.
When the hydraulic control device is started, the electromagnetic valve 4 is opened, the electric hydraulic pump 1 is electrified to operate, the electric hydraulic pump 1 pumps oil into the hydraulic control tube 3 through the liquid inlet tube 31, the control helical blades 36 in the hydraulic control tube 3 play a role in blocking and guiding the oil, the oil flow rate is slowed down, when the flow rate needs to be controlled, the control shaft 35 rotates, the control helical blades 36 are driven to rotate, the control helical blades 36 are used for helically conveying the oil forward, the oil flow rate can be increased, the oil flow rate can be accurately controlled by adjusting the rotating speed of the control shaft 35, when the starting load is large, the hydraulic device is difficult to quickly eject by the oil pressure pumped by the electric hydraulic pump 1, the rotating speed of the control shaft 35 is increased, the control shaft 35 drives the control helical blades 36 to rotate at a high speed, the oil flow rate is increased, the oil is secondarily pressurized through the hydraulic control tube 3, the hydraulic device is driven to eject by high enough pressure, and the starting speed is high;
when the flow rate needs to be controlled, the control shaft 35 rotates, the control shaft 35 drives the control helical blade 36 to rotate, the control helical blade 36 carries oil forwards in a helical manner, the oil flow rate can be increased, meanwhile, the control helical blade 37 is controlled to slide back and forth along the control shaft 35, the control helical blade 36 and the flow helical blade 37 are in the same helical direction and helical distance, so that the flow helical blade 37 moves between the control helical blades 36, the flow helical blade 37 filters metal chips in the oil, the flow helical blade 37 reciprocates, so that the metal chips on the flow helical blade 37 can be swayed while filtering, the swayed chips are fallen on the control shaft 35, the magnetic block 311 is arranged in the control shaft 35, so that the metal chips are adsorbed on the control shaft 35, when the chips need to be cleaned, the electromagnetic valve 4 is closed, the control shaft 35 rotates, the control shaft 35 drives the control helical blade 36 to rotate, the control helical blade 36 carries the oil in the hydraulic control tube 3, then the control helical blade 36 slides along the control shaft 35, the control helical blade 354 enables the metal chips in the oil to be filtered, the control helical blade 354 to enable the metal chips on the control shaft to be located on the control shaft 311, and the drain is only required to be removed when the control shaft 311 is required to slide along the control shaft 311;
the temperature of the control shaft 35 is changed while the oil is conveyed, the temperature of the oil flowing through the hydraulic control pipe 3 is controlled, the oil is in spiral conveying and is in contact with the control shaft 35 for a longer time, and meanwhile, the oil is stirred due to the fact that the spiral blades 37 slide back and forth, so that the temperature of the oil is uniform, and the temperature control effect is good.
Further, be provided with rotatory sealing washer 319 between control shaft 35 and the hydraulic control pipe 3, the outside of electronic hydraulic pump 1 is provided with support 2, and hydraulic control pipe 3 installs on support 2, through the setting of rotatory sealing washer 319, can prevent from the oil leak of control shaft 35 department, makes hydraulic control pipe 3 can fix together with electronic hydraulic pump 1 through the setting of support 2, convenient to carry.
In the second embodiment, a control structure of the control shaft 35 is provided on the basis of the above embodiment;
as shown in fig. 2 and 3, a motor frame 315 is mounted on the left side of the hydraulic control pipe 3, a control motor 316 is mounted on the outer side of the motor frame 315, and a driving wheel 317 is mounted at the output end of the control motor 316;
the left side of the hydraulic control pipe 3 is rotatably provided with a driven wheel 313, the driven wheel 313 is meshed with a driving wheel 317, and the driven wheel 313 is fixedly connected with the control shaft 35.
The control motor 316 is connected with a power supply, the control motor 316 drives the driving wheel 317 to rotate, the driving wheel 317 drives the driven wheel 313 to rotate, the driven wheel 313 drives the control shaft 35 to rotate, the control is stable, and the positions of the control motor 316 and the control shaft 35 are staggered, so that the follow-up adjustment is convenient.
Third embodiment, based on the above embodiment, a control structure of the bypass helical blade 37 is provided;
as shown in fig. 3-8, an axial key 351 is arranged on the outer side of the control shaft 35, a second groove 371 is formed on the inner side of the flow-around helical blade 37, the axial key 351 is inserted into the second groove 371, a top plate 352 is arranged on the right side of the control shaft 35, a top spring 353 is arranged between the top plate 352 and the flow-around helical blade 37, and the top spring 353 is used for driving the flow-around helical blade 37 to be far away from the top plate 352;
the left side of the inner wall of the hydraulic control pipe 3 is provided with a top ring 318, the edge of the top ring 318 is of a wave-shaped design, the top ring 318 is sleeved on the outer side of the control shaft 35, the left side of the bypass helical blade 37 is provided with a top rod 372, and the top rod 372 is in contact with the edge of the top ring 318.
The control motor 316 is powered on, the control motor 316 drives the driving wheel 317 to rotate, the driving wheel 317 drives the driven wheel 313 to rotate, the driven wheel 313 drives the control shaft 35 to rotate, the control shaft 35 drives the flow-around helical blade 37 through the shaft key 351 and the second groove 371, the flow-around helical blade 37 drives the ejector rod 372 to rotate along the edge of the top ring 318, and as the edge of the top ring 318 is of a wave-shaped design, when the ejector rod 372 rotates to the edge concave part of the top ring 318, the ejector rod 353 drives the flow-around helical blade 37 to slide leftwards, and when the ejector rod 372 is far away from the groove, the ejector rod 372 pushes the flow-around helical blade 37 to slide rightwards, so that the flow-around helical blade 37 can be controlled to slide reciprocally without additional driving, and the structure is compact.
Fourth embodiment, on the basis of the above embodiment, a control structure for controlling the helical blade 36 is provided;
as shown in fig. 3 to 8, a screw hole 314 is formed in the driven wheel 313, an adjusting screw 363 is rotatably mounted on the left side of the control screw blade 36, the adjusting screw 363 is in threaded connection with the screw hole 314, a first groove 361 is formed in the inner side of the control screw blade 36, and a shaft key 351 is inserted into the first groove 361.
When the scraps need to be cleaned, the electromagnetic valve 4 is closed, the control shaft 35 is controlled to rotate, the control shaft 35 drives the control helical blade 36 to rotate, the control helical blade 36 is controlled to helically convey oil to the hydraulic control pipe 3, the oil in the hydraulic control pipe 3 is emptied, then the adjusting screw 363 is rotated, the adjusting screw 363 drives the control helical blade 36 to slide along the control shaft 35 under the action of the screw hole 314, the control helical blade 36 is controlled to enable the drain outlet 354 to be opened, and the control is convenient.
Further, the left side of the control screw blade 36 is fixedly connected with a sleeve 362, and the adjusting screw 363 is rotatably installed at the left side of the sleeve 362, and the sliding stability of the control screw blade 36 can be improved by the arrangement of the sleeve 362.
Fifth embodiment, based on the above embodiments, a drain 354 structure is provided;
as shown in fig. 4, the drain 354 is arc-shaped, and the arc-shaped track is identical to the spiral track of the control spiral blade 36, so that the length of the drain 354 can be increased, and the drain is faster.
In a sixth embodiment, based on the above embodiment, a temperature control structure of the control shaft 35 is provided;
as shown in fig. 2-5, a support bracket is arranged at the outer side of the motor frame 315, a temperature controller 38 is arranged in the support bracket, the temperature controller 38 can heat and refrigerate, a temperature control pipe 39 is arranged at the outer side of the temperature controller 38, and the temperature control pipe 39 is inserted into the control shaft 35;
the hydraulic control pipe 3 is provided with a cross brace 33 inside, a control shaft 35 is rotatably mounted on the cross brace 33, and a temperature sensor 34 is mounted inside the cross brace 33.
Further, a heat conducting sleeve 310 is inserted into the control shaft 35, the heat conducting sleeve 310 is sleeved on the temperature control tube 39, a groove is formed in the outer side of the heat conducting sleeve 310 in an annular mode, the magnetic block 311 is installed in the groove, a plurality of groups of internal threads are formed in the inner wall of the control shaft 35, the heat conducting sleeve 310 is located between the adjacent internal threads, the internal threads of the internal threads are connected with a positioning screw sleeve 312, and the positioning screw sleeve 312 is sleeved on the temperature control tube 39.
Through this design, make magnetic path 311 and heat conduction cover 310 constitute modularization, the magnetic path 311 installation of being convenient for when can stabilize the conduction temperature, when the metal piece is adsorbed on magnetic path 311, unscrew the positioning screw sleeve 312, then with heat conduction cover 310 and magnetic path 311 follow control shaft 35 inside take out can, during the simultaneous installation, put into control shaft 35 heat conduction cover 310 and magnetic path 311 first, then with positioning screw sleeve 312 precession internal thread, place in proper order, can be in control shaft 35 a plurality of heat conduction covers 310 and magnetic path 311, simple to operate.
Furthermore, the depth of the groove is larger than the thickness of the magnetic block 311, so that a certain gap is formed between the magnetic block 311 and the inner wall of the control shaft 35, and a cavity is formed between the groove on the heat conducting sleeve 310 and the inner wall of the magnetic block 311 and the inner wall of the control shaft 35, so that more metal scraps can be adsorbed, and scraps are not easy to scrape when the magnetic block 311 is taken out.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The control equipment of the hydraulic pump driven by the motor comprises an electric hydraulic pump (1) and a hydraulic control pipe (3), and is characterized in that a liquid inlet pipe (31) is arranged on the outer side of the hydraulic control pipe (3), the liquid inlet pipe (31) is communicated with a liquid outlet end of the electric hydraulic pump (1), an electromagnetic valve (4) is arranged in the liquid inlet pipe (31), and a liquid outlet (32) is formed in the right side of the hydraulic control pipe (3);
the inside of the hydraulic control pipe (3) is provided with a control shaft (35) capable of automatically rotating, the temperature of the control shaft (35) is controllable, a control helical blade (36) and a flow-around helical blade (37) are sleeved on the outer side of the control shaft (35), filtering holes capable of filtering metal chips are uniformly formed in the flow-around helical blade (37), the helical directions and the helical intervals of the control helical blade (36) and the flow-around helical blade (37) are the same, and the control helical blade (36) and the flow-around helical blade (37) can slide along the control shaft (35);
the inside cavity design of control axle (35), internally mounted of control axle (35) has magnetic path (311), drain (354) have been seted up in the outside of control axle (35), control helical blade (36) can be with drain (354) shutoff.
2. The control device of a motor-driven hydraulic pump according to claim 1, characterized in that a motor frame (315) is mounted on the left side of the hydraulic control tube (3), a control motor (316) is mounted on the outer side of the motor frame (315), and a driving wheel (317) is mounted at the output end of the control motor (316);
the left side of the hydraulic control pipe (3) is rotatably provided with a driven wheel (313), the driven wheel (313) is meshed with the driving wheel (317), and the driven wheel (313) is fixedly connected with the control shaft (35).
3. The control device of a motor driven hydraulic pump according to claim 2, characterized in that an axial key (351) is arranged on the outer side of the control shaft (35), a second groove (371) is formed on the inner side of the flow-around helical blade (37), the axial key (351) is inserted into the second groove (371), a top plate (352) is arranged on the right side of the control shaft (35), a top spring (353) is arranged between the top plate (352) and the flow-around helical blade (37), and the top spring (353) is used for driving the flow-around helical blade (37) to be far away from the top plate (352);
the left side of hydraulic control pipe (3) inner wall is provided with top ring (318), the edge of top ring (318) is wave formula design, top ring (318) cup joint in the outside of control shaft (35), the left side of spiral blade (37) of detouring is provided with ejector pin (372), ejector pin (372) are in touch with the edge of top ring (318) mutually.
4. A control device of a motor driven hydraulic pump according to claim 3, characterized in that the inside of the driven wheel (313) is provided with a screw hole (314), the left side of the control screw blade (36) is rotatably provided with an adjusting screw (363), the adjusting screw (363) is in threaded connection with the screw hole (314), the inside of the control screw blade (36) is provided with a first groove (361), and the shaft key (351) is inserted into the first groove (361).
5. The control apparatus of a motor-driven hydraulic pump according to claim 4, wherein a sleeve (362) is fixedly connected to a left side of the control screw blade (36), and the adjusting screw (363) is rotatably installed to a left side of the sleeve (362).
6. A control apparatus of a motor-driven hydraulic pump according to claim 5, characterized in that the drain (354) is of an arc-shaped design and the arc-shaped locus is identical to the spiral locus of the control spiral vane (36).
7. A control device of a motor driven hydraulic pump according to any one of claims 2-6, characterized in that a support bracket is arranged on the outer side of the motor frame (315), a temperature controller (38) is arranged in the support bracket, the temperature controller (38) can heat and refrigerate, a temperature control tube (39) is arranged on the outer side of the temperature controller (38), and the temperature control tube (39) is inserted in the control shaft (35);
the hydraulic control pipe (3) is internally provided with a cross brace (33), the control shaft (35) is rotatably arranged on the cross brace (33), and a temperature sensor (34) is arranged in the cross brace (33).
8. The control device of a hydraulic pump driven by a motor according to claim 7, characterized in that a heat conducting sleeve (310) is inserted in the control shaft (35), the heat conducting sleeve (310) is sleeved on the temperature control tube (39), a groove is formed in the outer side of the heat conducting sleeve (310) in an annular mode, the magnetic block (311) is installed in the groove, a plurality of groups of internal threads are formed in the inner wall of the control shaft (35), the heat conducting sleeve (310) is located between adjacent internal threads, a positioning screw sleeve (312) is connected to the internal threads of the internal threads, and the positioning screw sleeve (312) is sleeved on the temperature control tube (39).
9. A control device of a motor driven hydraulic pump according to claim 8, characterized in that the depth of the recess is larger than the thickness of the magnet (311).
10. A control device of a motor driven hydraulic pump according to claim 1, characterized in that a rotary sealing ring (319) is arranged between the control shaft (35) and the hydraulic control tube (3), that a bracket (2) is arranged outside the electric hydraulic pump (1), and that the hydraulic control tube (3) is mounted on the bracket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311595572.4A CN117307460B (en) | 2023-11-28 | 2023-11-28 | Control device for motor-driven hydraulic pump |
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| CN202311595572.4A CN117307460B (en) | 2023-11-28 | 2023-11-28 | Control device for motor-driven hydraulic pump |
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| CN117307460B true CN117307460B (en) | 2024-01-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678686A (en) * | 2012-06-14 | 2012-09-19 | 上海三一重机有限公司 | Device, method and system for increasing efficiency of hydraulic pump |
| CN106593805A (en) * | 2017-02-15 | 2017-04-26 | 张正泉 | Wind-power water pumping system |
| JP2019042719A (en) * | 2017-09-07 | 2019-03-22 | コイケエンジニアリングアンドサービス株式会社 | Filter device |
| CN213615529U (en) * | 2020-09-29 | 2021-07-06 | 南京澳跃检测科技有限公司 | Spiral chip removal machine for physical sample machining center |
| CN115585113A (en) * | 2022-10-25 | 2023-01-10 | 中铁电气化局集团有限公司 | Electric hydraulic pump |
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2023
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678686A (en) * | 2012-06-14 | 2012-09-19 | 上海三一重机有限公司 | Device, method and system for increasing efficiency of hydraulic pump |
| CN106593805A (en) * | 2017-02-15 | 2017-04-26 | 张正泉 | Wind-power water pumping system |
| JP2019042719A (en) * | 2017-09-07 | 2019-03-22 | コイケエンジニアリングアンドサービス株式会社 | Filter device |
| CN213615529U (en) * | 2020-09-29 | 2021-07-06 | 南京澳跃检测科技有限公司 | Spiral chip removal machine for physical sample machining center |
| CN115585113A (en) * | 2022-10-25 | 2023-01-10 | 中铁电气化局集团有限公司 | Electric hydraulic pump |
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| CN117307460A (en) | 2023-12-29 |
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