CN114278528B - Miniature high-response control pump - Google Patents
Miniature high-response control pump Download PDFInfo
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- CN114278528B CN114278528B CN202111591687.7A CN202111591687A CN114278528B CN 114278528 B CN114278528 B CN 114278528B CN 202111591687 A CN202111591687 A CN 202111591687A CN 114278528 B CN114278528 B CN 114278528B
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- 230000004044 response Effects 0.000 title claims abstract description 29
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 67
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 160
- 239000007788 liquid Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000008034 disappearance Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Rotary Pumps (AREA)
Abstract
The invention relates to a miniature high-response control pump, comprising: the shell is internally provided with a cavity, the side wall of the shell is provided with a first oil cavity and a second oil cavity which penetrate through the cavity, and the first oil cavity and the second oil cavity are in the same cross section; the rotary cup is rotatably arranged in the cavity through a bearing, one end of the rotary cup is provided with an oil storage cavity, the side wall of the rotary cup is provided with an oil conveying cavity which penetrates through the oil storage cavity, and the oil conveying cavity is respectively communicated with the first oil cavity and the second oil cavity in the rotation process of the rotary cup; the plunger assembly comprises a plunger body, a memory alloy and a control coil, one end of the plunger body is inserted into the oil storage cavity, the other end of the plunger body is connected with the memory alloy, and the control coil is arranged in a shell on the periphery of the memory alloy; and the motor is connected with the other end of the rotating cup. The invention realizes miniaturization by using the tiny memory alloy, and realizes high response by using the memory alloy and high-speed linear displacement and rotary displacement of the motor.
Description
Technical Field
The invention relates to the technical field of power elements, in particular to a miniature high-response control pump.
Background
A hydraulic pump is a hydraulic component that provides pressurized fluid to a hydraulic transmission, and is a type of pump. The hydraulic engine is driven by a power machine (such as an electric motor, an internal combustion engine and the like), oil is sucked from a hydraulic oil tank to form pressure oil, the pressure oil is discharged and sent to an executing element, and the mechanical energy of the power machine is converted into the pressure energy of liquid.
In the prior art, hydraulic pumps are structurally classified into gear pumps, plunger pumps, vane pumps, and screw pumps. However, in either hydraulic pump, the change in volume of the pump chamber is caused by movement, so that the fluid is compressed to provide pressure energy to the fluid. In order to realize the change of the volume of the pump cavity, the transmission part generally adopts a cam structure, a connecting rod structure and the like, the volume and the weight are large, the structure and the processing technology are complex, and miniaturization and high response are difficult to realize.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of large volume, heavy weight and complex structure of the hydraulic pump in the prior art, provide a miniature high-response control pump, realize miniaturization by using a tiny memory alloy, and realize high response by using the memory alloy and high-speed linear displacement and rotary displacement of a motor.
In order to solve the above technical problems, the present invention provides a micro high-response control pump, comprising:
the shell is internally provided with a cavity, the side wall of the shell is provided with a first oil cavity and a second oil cavity which penetrate through the cavity, and the first oil cavity and the second oil cavity are positioned in the same cross section;
the rotating cup is rotatably arranged in the cavity through a bearing, an oil storage cavity is formed in one end of the rotating cup, an oil conveying cavity penetrating through the oil storage cavity is formed in the side wall of the rotating cup, and the oil conveying cavity is respectively communicated with the first oil cavity and the second oil cavity in the rotating process of the rotating cup;
the plunger assembly comprises a plunger body, a memory alloy and a control coil, one end of the plunger body is inserted into the oil storage cavity, the other end of the plunger body is connected with the memory alloy, and the control coil is arranged in the shell at the periphery of the memory alloy;
and the motor is connected with the other end of the rotating cup.
In one embodiment of the invention, the memory alloy is in a sheet structure, the rotating cup, the plunger body and the memory alloy are arranged along the axial direction of the cavity, one end of the memory alloy is connected with the plunger body, and the other end of the memory alloy is connected with the rear cover of the shell.
In one embodiment of the invention, the plunger body comprises a stopper and a stopper rod, one end of the stopper rod is inserted into the oil storage cavity in a sealing way, the other end of the stopper rod is fixedly connected with the stopper, the stopper is matched with the cavity, and the cavity guides the stopper.
In one embodiment of the invention, a limiting seat is fixed in the cavity between the rotating cup and the stopper, the stopper rod penetrates through the limiting seat and is inserted into the oil storage cavity, an elastic piece is sleeved on the stopper rod between the limiting seat and the stopper, and the elastic piece has a tendency of pushing the stopper to be away from the limiting seat.
In one embodiment of the invention, the elastic member is a compression spring.
In one embodiment of the present invention, the oil delivery chamber, the first oil chamber and the second oil chamber are all disposed along a radial direction of the cavity, and the oil delivery chamber is located at a bottom of the oil storage chamber.
In one embodiment of the invention, the angle θ between the first and second oil chambers is < 45 °.
In one embodiment of the invention, the motor and the control coil are respectively connected with two paths of output of the controller.
In one embodiment of the invention, the motor is arranged on the side surface of the shell, and is connected with a deflector rod which is connected with the rotating shaft of the rotating cup.
In one embodiment of the invention, the electric machine is a torque motor.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the miniature high-response control pump realizes miniaturization by using the tiny memory alloy, and realizes high response by using the memory alloy and the high-speed linear displacement and the rotary displacement of the motor.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 with the rotor of the present invention in an initial position;
FIG. 3 is a cross-sectional view taken along line A-A in FIG. 1 of the present invention after rotation of the rotor.
Description of the specification reference numerals: 10. a housing; 11. a cavity; 12. a rear cover; 13. a first oil chamber; 14. a second oil chamber;
20. a rotating cup; 21. an oil storage chamber; 22. an oil conveying cavity;
30. a plunger assembly; 31. a plunger body; 311. blocking; 312. a plug rod; 32. a memory alloy; 33. a control coil; 34. a limit seat; 35. an elastic member;
40. a motor; 41. a deflector rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1, 2 and 3, there is shown a schematic diagram of a miniature high-response control pump according to the present invention. The control pump of the present invention includes:
the device comprises a shell 10, wherein a cavity 11 is formed in the shell 10, a first oil cavity 13 and a second oil cavity 14 which are communicated with the cavity 11 are formed in the side wall of the shell 10, and the first oil cavity 13 and the second oil cavity 14 are located in the same cross section of the shell 10;
the rotary cup 20 is rotatably installed in the cavity 11 through a bearing, an oil storage cavity 21 is arranged at one end of the rotary cup 20, an oil transportation cavity 22 communicated with the oil storage cavity 21 is arranged on the side wall of the rotary cup 20, and the oil transportation cavity 22 is respectively communicated with the first oil cavity 13 and the second oil cavity 14 in the rotation process of the rotary cup 20;
the plunger assembly 30, the said plunger assembly 30 includes the body 31 of the plunger, memory alloy 32 and control coil 33, the said body 31 of the said plunger is sealed to insert into the said oil storage cavity 21, another end couples to said memory alloy 32, the said control coil 33 is installed in said body 10 of the periphery of the said memory alloy 32;
and a motor 40 for driving the rotary cup 20 to rotate, the motor 40 being connected to the other end of the rotary cup 20.
The housing 10 supports the rotor cup 20 and the plunger assembly 30. In the initial state, the oil storage cavity 21 is communicated with the first oil cavity 13 through the oil transmission cavity 22, the memory alloy 32 is in a contracted state, the plunger body 31 connected with the memory alloy 32 is far away from the bottom of the oil storage cavity 21, at this time, the front end of the plunger body 31 is located at the right end of the oil storage cavity 21 in fig. 1, and the oil storage cavity 21 is in a state with the largest volume.
After starting to work, the motor 40 and the control coil 33 are electrified, a magnetic field is generated around the electrified control coil 33, the memory alloy 32 generates macroscopic deformation in the magnetic field, the memory alloy lengthens due to the magnetostriction effect, the plunger body 31 is pushed to move towards the bottom of the oil storage cavity 21, namely the front end of the plunger body 31 moves towards the left side in the figure 1, and liquid in the oil storage cavity 21 is extruded; at the same time, after the motor 40 is energized, the rotating cup 20 is driven to rotate relative to the housing, the oil conveying cavity 22 rotates away from the position communicated with the first oil cavity 13, the first oil cavity 13 is blocked, and the oil conveying cavity 22 reaches the position communicated with the second oil cavity 14. The oil storage cavity 21 is communicated with the second oil cavity 14 through the oil transmission cavity 22, and the extruded liquid in the oil storage cavity 21 flows out of the second oil cavity 14 through the oil transmission cavity 22 to realize oil discharge.
After oil discharge is completed, the motor 40 drives the rotary cup 20 to rotate, the rotary cup 20 rotates back to the position where the oil conveying cavity 22 is communicated with the first oil cavity 13, the second oil cavity 14 is blocked, at the moment, the motor 40 is not powered on, and the control coil 33 is powered off. When the motor 40 is not powered, the rotary cup 20 is not driven, the rotary cup 20 is static, and the oil storage cavity 21 is kept in a state of being communicated with the first oil cavity 13; meanwhile, after the control coil 33 is powered off, the memory alloy 32 returns to an initial state due to the disappearance of an external magnetic field, namely the memory alloy 32 is shortened, the plunger body 31 is driven to move in a direction away from the bottom of the oil storage cavity 21, namely the front end of the plunger body 31 moves in a direction to the right in fig. 1, so that the volume of the oil storage cavity 21 is increased, and as the volume of the oil storage cavity 21 is increased, the oil storage cavity 21 forms negative pressure, so that liquid enters the oil storage cavity 21 through the first oil cavity 13 and the oil conveying cavity 22, and oil absorption is realized.
After oil suction is completed, the motor 40 and the control coil 33 are energized again, so that the oil storage chamber 21 is communicated with the second oil chamber 14 through the oil conveying chamber 22, and oil discharge is realized again. And then the power is cut off, so that the oil storage cavity 21 is communicated with the first oil cavity 13 through the oil transmission cavity 22, and oil absorption is realized again. Therefore, the functions of oil suction, oil discharge, oil suction and oil discharge are realized and the pump is controlled periodically.
In the embodiment of the invention, the movement of the plunger body 31 is realized by the memory alloy 32, the memory alloy 32 has large strain capacity, so that the small memory alloy 32 can realize the driving of the plunger body 31, and the deformation of the memory alloy 32 is realized by the coil around the periphery of the memory alloy 32, so that the overall size of the plunger assembly 30 serving as a transmission part is small, and the volume of the control pump is also reduced. At the same time, the magnetic shape memory alloy 32 has a high response speed and a high response frequency, and can achieve a high speed of linear displacement of the plunger body 31, and the control pump also has a high response characteristic by incorporating the motor 40 having a high response characteristic and capable of achieving a high speed of rotational displacement of the rotor cup 20.
In a preferred embodiment of the present invention, the memory alloy 32 is in a sheet structure, the memory alloy 32 in the sheet structure is deformed to be generally stretched in an axial direction, and the deformation amount is large, so that a sufficient driving force can be generated in the axial direction, and in this structure, the rotating cup 20, the plunger body 31 and the memory alloy 32 are arranged along the axial direction of the cavity 11, and one end of the memory alloy 32 is connected to the plunger body 31, and the other end is connected to the rear cover 12 of the housing 10. On the one hand, the driving force to the plunger body 31 is at the maximum at this time; on the other hand, the memory alloy 32 is directly connected with the plunger body 31, and the connecting structure is simple, so that the volume of the control pump is not increased. And the memory alloy 32 is connected with the rear cover 12, so that the disassembly and the maintenance are convenient.
In the present embodiment, when energized, the motor 40 drives the rotary cup 20 to rotate by a set angle, so that the oil storage chamber 21 communicates with the second oil chamber 14 through the oil delivery chamber 22; the control coil 33 generates a magnetic field around after being electrified, the memory alloy 32 axially stretches under the action of the magnetic field, the position of the rear end of the memory alloy 32 is not changed due to the limitation of the rear cover 12, the front end of the memory alloy 32 pushes the plunger body 31 to push out towards the bottom direction of the oil storage cavity 21, the volume of the oil storage cavity 21 is reduced along with the extrusion of the plunger body 31, and liquid in the oil storage cavity 21 is discharged through the oil conveying cavity 22 and the second oil cavity 14. At the end of oil discharge, the motor 40 drives the rotary cup 20 to rotate for a set angle, so that the oil storage cavity 21 is communicated with the first oil cavity 13 through the oil conveying cavity 22, the motor 40 and the control coil 33 are powered off, and the oil storage cavity 21 is kept in a state communicated with the first oil cavity 13; after the control coil 33 is powered off, the memory alloy 32 is reset due to the disappearance of the external magnetic field, the plunger body 31 moves in the direction away from the bottom of the oil storage cavity 21, the volume of the oil storage cavity 21 is increased, and external liquid enters the oil storage cavity 21 through the first oil cavity 13 and the oil conveying cavity 22. And oil suction and oil discharge actions are completed.
In other embodiments, when the memory alloy 32 is designed in other deformation forms, the plunger body 31 and the memory alloy 32 may be connected at a certain angle, and the moving direction of the plunger body 31 is in the direction of the maximum driving force of the deformation of the memory alloy 32.
In a preferred embodiment of the present invention, the memory alloy 32 pushes the plunger body 31 back and forth in the oil reservoir 21, and the vibration of the memory alloy 32 from the axial direction is not controllable when it expands and contracts in the axial direction, so that the plunger body 31 cannot move stably. The plunger body 31 includes a stopper 311 and a stopper 312, one end of the stopper 312 is inserted into the oil storage cavity 21 in a sealing manner, the other end of the stopper 312 is fixedly connected with the stopper 311, the stopper 311 is matched with the cavity 11, and the cavity 11 guides the stopper 311. Due to the limit of the stopper 311, the stopper 312 can only move along the axial direction of the cavity 11, and even if the memory alloy 32 stretches and contracts to generate tremble deviating from the axial direction, the movement of the stopper 312 in the oil storage cavity 21 is not affected.
In the present embodiment, when energized, the motor 40 drives the rotary cup 20 to rotate by a set angle, so that the oil storage chamber 21 communicates with the second oil chamber 14 through the oil delivery chamber 22; the control coil 33 generates a magnetic field around after being electrified, the memory alloy 32 stretches under the action of the magnetic field, the memory alloy 32 pushes the blocking 311 out towards the bottom direction of the oil storage cavity 21, namely towards the left side direction in fig. 1, the cross section shape of the blocking 311 is matched with that of the cavity 11, so that the blocking 311 can only move along the axial direction of the cavity 11, the plug can only move along the axial direction of the oil storage cavity 21, and the sealing between the plug and the oil storage cavity 21 in the moving process is ensured. As the plug is inserted into the oil reservoir chamber 21, the liquid in the oil reservoir chamber 21 is discharged through the oil delivery chamber 22 and the second oil chamber 14. At the end of oil discharge, the motor 40 drives the rotary cup 20 to rotate for a set angle, so that the oil storage cavity 21 is communicated with the first oil cavity 13 through the oil conveying cavity 22, the motor 40 and the control coil 33 are powered off, and the oil storage cavity 21 is kept in a state communicated with the first oil cavity 13; after the control coil 33 is powered off, the memory alloy 32 is reset due to the disappearance of the external magnetic field, so that the stopper 311 is driven to move in a direction away from the bottom of the oil storage cavity 21, and the end part of the stopper is moved to the opening end of the oil storage cavity 21. The volume of the oil storage chamber 21 increases and the external liquid is sucked into the oil storage chamber 21. Because the cavity 11 limits the blockage 311, the plug can only move along one direction, so that even if the overlapping part of the plug and the oil storage cavity 21 is less, the plug can not shake, and the sealing with the oil storage cavity 21 is ensured.
In other embodiments, a guide groove is provided in the cavity 11, and the stopper 311 cooperates with the guide groove to form a guide, or other guiding manners.
As a preferred embodiment of the present invention, the memory alloy 32 is capable of rapidly deforming under the influence of a magnetic field, but after the magnetic field is removed, the memory alloy 32 returns relatively slowly, which affects the corresponding speed of the control pump. Therefore, a limit seat 34 is fixed in the cavity 11 between the rotary cup 20 and the stopper 311, the stopper rod 312 is inserted into the oil storage cavity 21 through the limit seat 34, an elastic member 35 is sleeved on the stopper rod 312 between the limit seat 34 and the stopper 311, and the elastic member 35 has a tendency of pushing the stopper 311 away from the limit seat 34.
In the present embodiment, when the motor 40 is not energized, the oil reservoir chamber 21 is maintained in a state of communication with the first oil chamber 13; after the control coil 33 is powered off, the memory alloy 32 no longer applies pushing force to the blocking 311 due to disappearance of an external magnetic field, and the elastic piece 35 is not subjected to extrusion force, so that the elastic piece 35 has a restoration trend, at the moment, the blocking 311 simultaneously receives pushing force generated by restoration of the elastic piece 35 and pulling force generated by restoration of the memory alloy 32, the blocking 311 is driven by two acting forces simultaneously to rapidly move towards the rear cover 12 to drive the plug to move towards a direction away from the bottom of the oil storage cavity 21, the volume of the oil storage cavity 21 is increased, external liquid enters the oil storage cavity 21 through the first oil cavity 13 and the oil transmission cavity 22, and oil absorption action is rapidly completed. Specifically, the elastic member 35 is a compression spring, which is convenient to set and has low cost.
As a preferred embodiment of the present invention, the oil delivery chamber 22, the first oil chamber 13 and the second oil chamber 14 are all disposed along the radial direction of the cavity 11. At this time, the oil conveying cavity 22, the first oil cavity 13 and the second oil cavity 14 are all straight channels, and the liquid can not be blocked when flowing through the oil conveying cavity, so that the quick completion of oil suction and oil discharge is ensured. Further, to achieve the matching of the rotation frequency of the rotating cup 20 and the expansion frequency of the plunger assembly 30, the included angle θ between the first oil chamber 13 and the second oil chamber 14 is less than 45 °. The rotating cup 20 can be matched with the first oil cavity 13 and the second oil cavity 14 respectively only by rotating a small angle, so that the rotating cup can be rapidly switched between oil suction and oil discharge states to be matched with the memory alloy 32 with high-speed response.
As a preferred embodiment of the present invention, the motor 40 and the control coil 33 are connected to two outputs of the controller, respectively. The command is input to the controller, and two paths of outputs of the controller drive the motor 40 to operate in one path and drive the control coil 33 to operate in the other path. Because of the same power supply, the two paths of output of the controller can be ensured to be in phase. So that the rotation of the rotary cup 20 and the expansion and contraction of the memory alloy 32 can be synchronously performed, and the memory alloy 32 is ensured to be in a contracted state when the oil conveying cavity 22 is matched with the first oil cavity 13, and the memory alloy 32 is ensured to be in an extended state when the oil conveying cavity 22 is matched with the second oil cavity 14. Further, the motor 40 is mounted on the side surface of the housing 10, the motor 40 is connected with a shift lever 41, and the shift lever 41 is connected with the rotating shaft of the rotating cup 20. The memory alloy 32 is located at the center of the control coil 33, the control coil 33 is installed at one end in the housing, and the first oil chamber 13 and the second oil chamber 14 are provided at one side of the other end of the housing, so that the thickness of the one side of the housing is slightly thicker, and the thickness of the other side can be thinner, and when the motor 40 is installed at the one side of the housing, the size of the control pump in the width direction can be prevented from being increased too much. Further achieving miniaturization of the control pump. And the motor 40 is directly connected with the rotary cup 20 through the deflector rod 41, so that the action of the motor 40 can be quickly transferred to the rotary cup 20, and the corresponding speed of the control pump is improved. Further, the motor 40 is a torque motor. The torque motor is of a flat structure, small in size and quick in response, and meets the requirements of miniaturization and high response of the control pump.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A miniature high response control pump comprising:
the shell is internally provided with a cavity, the side wall of the shell is provided with a first oil cavity and a second oil cavity which penetrate through the cavity, and the first oil cavity and the second oil cavity are positioned in the same cross section;
the rotating cup is rotatably arranged in the cavity through a bearing, an oil storage cavity is formed in one end of the rotating cup, an oil conveying cavity penetrating through the oil storage cavity is formed in the side wall of the rotating cup, and the oil conveying cavity is respectively communicated with the first oil cavity and the second oil cavity in the rotating process of the rotating cup;
the plunger assembly comprises a plunger body, a memory alloy and a control coil, one end of the plunger body is inserted into the oil storage cavity, the other end of the plunger body is connected with the memory alloy, the control coil is arranged in the shell at the periphery of the memory alloy, and the rotating cup, the plunger body and the memory alloy are arranged along the axial direction of the cavity;
and the motor is connected with the other end of the rotating cup.
2. The miniature high response control pump of claim 1, wherein: the memory alloy is of a sheet structure, one end of the memory alloy is connected with the plunger body, and the other end of the memory alloy is connected with the rear cover of the shell.
3. The miniature high response control pump of claim 1, wherein: the plunger body comprises a stopper and a stopper rod, one end of the stopper rod is inserted into the oil storage cavity in a sealing mode, the other end of the stopper rod is fixedly connected with the stopper, the stopper is matched with the cavity, and the cavity guides the stopper.
4. A miniature high response control pump according to claim 3, wherein: the plug rod penetrates through the limiting seat to be inserted into the oil storage cavity, an elastic piece is sleeved on the plug rod between the limiting seat and the blockage, and the elastic piece has a tendency of pushing the blockage to be away from the limiting seat.
5. The miniature high response control pump of claim 4, wherein: the elastic piece is a compression spring.
6. The miniature high response control pump of claim 1, wherein: the oil conveying cavity, the first oil cavity and the second oil cavity are all arranged along the radial direction of the cavity, and the oil conveying cavity is positioned at the bottom of the oil storage cavity.
7. The miniature high response control pump of claim 1, wherein: and an included angle theta between the first oil cavity and the second oil cavity is smaller than 45 degrees.
8. The miniature high response control pump of claim 1, wherein: the motor and the control coil are respectively connected with two paths of output of the controller.
9. The miniature high response control pump of claim 1, wherein: the motor is arranged on the side face of the shell, the motor is connected with a deflector rod, and the deflector rod is connected with the rotating shaft of the rotating cup.
10. The miniature high response control pump of claim 1, wherein: the motor is a torque motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111591687.7A CN114278528B (en) | 2021-12-23 | 2021-12-23 | Miniature high-response control pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111591687.7A CN114278528B (en) | 2021-12-23 | 2021-12-23 | Miniature high-response control pump |
Publications (2)
| Publication Number | Publication Date |
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| CN114278528A CN114278528A (en) | 2022-04-05 |
| CN114278528B true CN114278528B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111591687.7A Active CN114278528B (en) | 2021-12-23 | 2021-12-23 | Miniature high-response control pump |
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| CN (1) | CN114278528B (en) |
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| CH446070A (en) * | 1965-12-24 | 1967-10-31 | Boelkow Gmbh | Axial piston pump |
| CN2753899Y (en) * | 2004-09-24 | 2006-01-25 | 杭州中亚机械有限公司 | Viscose material pump |
| CN2895789Y (en) * | 2006-04-27 | 2007-05-02 | 钱志财 | High-precision plunger metering pump |
| CN101189431A (en) * | 2005-04-13 | 2008-05-28 | 雅培糖尿病护理公司 | Variable volume, shape memory actuated insulin dispensing pump |
| CN101290002A (en) * | 2008-04-30 | 2008-10-22 | 林波 | Dosage pump and its drive apparatus |
| CN205078414U (en) * | 2015-10-27 | 2016-03-09 | 南昌工程学院 | Accurate flow pump based on shape memory alloy |
| CN106401941A (en) * | 2016-12-09 | 2017-02-15 | 南昌工程学院 | High-precision valve micro pump driven by temperature control shape memory alloy |
| CN211549957U (en) * | 2019-12-03 | 2020-09-22 | 上海东富龙科技股份有限公司 | Plunger pump with double flow channels and grooves |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2378119A1 (en) * | 2010-04-15 | 2011-10-19 | Mmi Ag | Plunger pump with manual insertion possibility for volumes under a microlitre |
| US9416775B2 (en) * | 2014-07-02 | 2016-08-16 | Becton, Dickinson And Company | Internal cam metering pump |
-
2021
- 2021-12-23 CN CN202111591687.7A patent/CN114278528B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH446070A (en) * | 1965-12-24 | 1967-10-31 | Boelkow Gmbh | Axial piston pump |
| CN2753899Y (en) * | 2004-09-24 | 2006-01-25 | 杭州中亚机械有限公司 | Viscose material pump |
| CN101189431A (en) * | 2005-04-13 | 2008-05-28 | 雅培糖尿病护理公司 | Variable volume, shape memory actuated insulin dispensing pump |
| CN2895789Y (en) * | 2006-04-27 | 2007-05-02 | 钱志财 | High-precision plunger metering pump |
| CN101290002A (en) * | 2008-04-30 | 2008-10-22 | 林波 | Dosage pump and its drive apparatus |
| CN205078414U (en) * | 2015-10-27 | 2016-03-09 | 南昌工程学院 | Accurate flow pump based on shape memory alloy |
| CN106401941A (en) * | 2016-12-09 | 2017-02-15 | 南昌工程学院 | High-precision valve micro pump driven by temperature control shape memory alloy |
| CN211549957U (en) * | 2019-12-03 | 2020-09-22 | 上海东富龙科技股份有限公司 | Plunger pump with double flow channels and grooves |
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| Publication number | Publication date |
|---|---|
| CN114278528A (en) | 2022-04-05 |
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