CN212250369U - From heat dissipation formula electromagnetism directly drives plunger pump - Google Patents
From heat dissipation formula electromagnetism directly drives plunger pump Download PDFInfo
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- CN212250369U CN212250369U CN202020650020.4U CN202020650020U CN212250369U CN 212250369 U CN212250369 U CN 212250369U CN 202020650020 U CN202020650020 U CN 202020650020U CN 212250369 U CN212250369 U CN 212250369U
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- plunger pump
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Abstract
The utility model relates to a from heat dissipation formula electromagnetism directly drives plunger pump, including linear electric motor active cell, stator, end cover, pneumatic cylinder body, piston and check valve subassembly, its characterized in that linear electric motor active cell and pneumatic cylinder piston integration, both divide the inner chamber of pneumatic cylinder into pump sap cavity Q and pump air cavity (A1, A2), and pump air cavity communicates with each other with the environment through the air gap between linear electric motor active cell and the stator and the air vent of linear electric motor end cover; the linear motor rotor directly drives the hydraulic cylinder piston to reciprocate, a pump liquid cavity finishes pumping liquid under the flow distribution of the check valve group, and meanwhile, air pumped in the pump air cavity performs forced air cooling heat dissipation on the interior of the linear motor, wherein the volume of the pump air cavity A1 is larger than that of the pump air cavity A2, so that the heat dissipation on the interior of the linear motor is enhanced, and meanwhile, the linear motor rotor and the hydraulic cylinder piston are integrated, so that the heat dissipation effect of the liquid on the linear motor is also enhanced. The utility model provides an electromagnetism directly drives plunger pump linear electric motor and generates heat serious, especially inside heat dissipation difficulty's problem.
Description
Technical Field
The utility model relates to a plunger pump technical field especially relates to an electromagnetism directly drives plunger pump.
Background
The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions with high pressure, large flow and flow needing to be regulated. The swash plate type plunger pump has high efficiency and good pressure resistance, can realize various variable functions, and is the mainstream plunger pump in the current market. However, the number of friction pairs is large, the lubrication condition is complex, and the further improvement of the performance is also limited.
With the development of a linear direct-drive technology, a linear motor is adopted to directly drive a piston of a plunger pump, so that a motion conversion mechanism from rotation to linear, such as a swash plate, is eliminated, and an important trend of the development of the plunger pump, which is the efficient direct drive, is realized. However, due to the elimination of the motion conversion mechanism, the plunger pump is more compact in structure, and the problem of effective heat dissipation of the driving motor is more prominent. How to effectively dissipate heat inside a driving motor of the direct-drive plunger pump, the compactness of the direct-drive plunger pump is not influenced, and the difficulty of technical development is formed.
The utility model discloses a from plunger pump is directly driven to heat dissipation formula electromagnetism adopts linear electric motor active cell direct drive pneumatic cylinder piston reciprocating motion, and the pump of liquid is accomplished to the pump sap cavity under the joining in marriage of check valve group pumps, pumps the air simultaneously and to the inside forced air cooling heat dissipation of implementing of linear electric motor in the pump air cavity, solves the electromagnetism and directly drives the problem that the plunger pump generates heat seriously, especially inside heat dissipation difficulty under the prerequisite that does not increase the additional installation, does not influence compact structure nature.
Disclosure of Invention
The electric joint sleeve type gear shifting mechanism is designed to directly drive a piston of a hydraulic cylinder to reciprocate by adopting a rotor of a linear motor, pump liquid cavities complete pump pumping of liquid under flow distribution of a check valve bank, and pump air in a pump air cavity performs forced air cooling heat dissipation on the interior of the linear motor, so that the problems of serious heating, especially difficult internal heat dissipation of an electromagnetic direct-drive plunger pump are solved on the premise of not increasing additional devices and not influencing the structural compactness.
A self-radiating electromagnetic direct-drive plunger pump comprises a linear motor end cover (1), an outer stator (2), an inner stator (3), a rotor (4), a hydraulic cylinder body (5), a hydraulic cylinder piston (6), a valve block (7), a liquid outlet valve (8), a liquid inlet valve (9) and an air gap (10); the electromagnetic direct-drive plunger pump is characterized by comprising a linear motor outer stator (2) and an inner stator (3) which are coaxially fixed through a linear motor end cover (1), the motor outer stator (2) and a valve block (7) are coaxially fixed through a hydraulic cylinder body (5) by adopting screws, axial end faces are parallel to each other, the valve block (7) is provided with a liquid outlet valve (8), the axis of a liquid inlet valve (9) is parallel to the axis of the linear motor, and the valve block is used as an electromagnetic direct-drive plunger pump stator; the linear motor rotor (4) is connected with a hydraulic cylinder piston (6) through a countersunk head screw to serve as an electromagnetic direct-drive plunger pump rotor; the two axial end faces of the linear motor outer stator (2) and the inner stator (3) are respectively on the same plane and are parallel to the axial end face of the hydraulic cylinder piston (6) and the axial end face of the linear motor rotor (4); an air gap (10) is formed between the outer stator (2) and the inner stator (3) of the linear motor, the plunger pump rotor is installed in an inner cavity formed by the air gap (10) and the hydraulic cylinder body (5), a sliding seal is adopted between the hydraulic cylinder piston (6) and the hydraulic cylinder body (5), and the electromagnetic direct-drive plunger pump rotor can move along the axial direction; the linear air gap (10) is divided into an inner air gap and an outer air gap by a linear motor rotor (4), the inner cavity of the hydraulic cylinder body (5) is divided into a pump liquid cavity Q, a pump air cavity A1 and a pump air cavity A2 by a plunger pump rotor, wherein the volume of the pump air cavity A2 is larger than that of the pump air cavity A1; the pump air cavity A1 and the pump air cavity A2 are communicated with the environment only through inner and outer air gaps and vent holes on the end cover (1) of the linear motor, and the pump air cavity A1 and the pump air cavity A2 are communicated only through the inner and outer air gaps.
The Halbach permanent magnet array is used for the linear motor to improve air gap flux density, and the rotor (4) of the linear motor is of a moving coil type or a moving magnet type.
The linear motor rotor (4) directly drives the hydraulic cylinder piston (6), and the stroke of the plunger pump rotor is the sum of the distance from the hydraulic cylinder piston (6) to the inner end face of the pump liquid cavity Q end of the hydraulic cylinder body (5) and the distance from the inner end face of the pump gas cavity end of the linear motor rotor (4) to the end face of the pump gas cavity end of the linear motor inner stator (3).
The axial section of the vent hole on the linear motor end cover (1) is rectangular, and the vent hole is an equal-diameter through hole with the same size.
The liquid outlet valve (8) and the liquid inlet valve (9) are passive one-way valves, the number of the liquid outlet valves is not less than 1, and the end surfaces of the mounting ends of the liquid outlet valve (8) and the liquid inlet valve (9) and the inner end surface of the Q end of the pump liquid cavity of the hydraulic cylinder body (5) are in the same plane.
The linear motor rotor (4) directly drives the plunger pump rotor integrated with the hydraulic cylinder piston (6) to complete liquid pumping/sucking at the end of the pump liquid cavity Q and complete air sucking/pumping in the pump air cavity A1 and the pump air cavity A2.
The utility model discloses a from plunger pump is directly driven to heat dissipation formula electromagnetism adopts linear electric motor active cell direct drive pneumatic cylinder piston reciprocating motion, and the pump of liquid is accomplished to the pump sap cavity under the joining in marriage of check valve group pumps, pumps the air simultaneously and to the inside forced air cooling heat dissipation of implementing of linear electric motor in the pump air cavity, solves the electromagnetism and directly drives the problem that the plunger pump generates heat seriously, especially inside heat dissipation difficulty under the prerequisite that does not increase the additional installation, does not influence compact structure nature.
The utility model discloses a from electromagnetism of heat dissipation formula directly drives plunger pump, its linear electric motor active cell direct drive pneumatic cylinder piston has cancelled the motion conversion mechanism of rotation to straight line, and the power transmission route shortens, and efficiency improves, responds rapidly; the permanent magnet linear motor based on the Halbach permanent magnet array is adopted, so that the air gap magnetic field intensity is enhanced, and the driving force and the response speed are improved; meanwhile, self-heat dissipation is realized under the condition that no additional device is added, so that the structure compactness is further improved.
The utility model discloses a from plunger pump is directly driven to heat dissipation formula electromagnetism, its pump air cavity divide into two parts, mainly carries out forced air cooling heat dissipation to the different parts of motor respectively, and wherein the pump air cavity volume to motor axle center part is great, and the ability of pumping air is stronger to this forced air cooling radiating effect to the inside has been reinforceed.
The utility model discloses a from heat dissipation formula electromagnetism directly drives plunger pump has compact structure, response rapidly, from advantages such as heat dissipation, will bring huge economic benefits after dropping into the industrialization and using.
Drawings
Fig. 1 is the utility model discloses a from heat dissipation formula electromagnetism directly drives plunger pump schematic structure.
Fig. 2 is the utility model discloses a from heat dissipation formula electromagnetism directly drives plunger pump end cover axial view.
Fig. 3 is the utility model discloses a from heat dissipation formula electromagnetism directly drives plunger pump (linear electric motor active cell is the moving coil type).
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, a self-radiating electromagnetic direct-drive plunger pump comprises a linear motor end cover (1), an outer stator (2), an inner stator (3), a rotor (4), a hydraulic cylinder body (5), a hydraulic cylinder piston (6), a valve block (7), a liquid outlet valve (8), a liquid inlet valve (9) and an air gap (10); the electromagnetic direct-drive plunger pump is characterized by comprising a linear motor outer stator (2) and an inner stator (3) which are coaxially fixed through a linear motor end cover (1), the motor outer stator (2) and a valve block (7) are coaxially fixed through a hydraulic cylinder body (5) by adopting screws, axial end faces are parallel to each other, the valve block (7) is provided with a liquid outlet valve (8), the axis of a liquid inlet valve (9) is parallel to the axis of the linear motor, and the valve block is used as an electromagnetic direct-drive plunger pump stator; the linear motor rotor (4) is connected with a hydraulic cylinder piston (6) through a countersunk head screw to serve as an electromagnetic direct-drive plunger pump rotor; the two axial end faces of the linear motor outer stator (2) and the inner stator (3) are respectively on the same plane and are parallel to the axial end face of the hydraulic cylinder piston (6) and the axial end face of the linear motor rotor (4); an air gap (10) is formed between the outer stator (2) and the inner stator (3) of the linear motor, the plunger pump rotor is installed in an inner cavity formed by the air gap (10) and the hydraulic cylinder body (5), a sliding seal is adopted between the hydraulic cylinder piston (6) and the hydraulic cylinder body (5), and the electromagnetic direct-drive plunger pump rotor can move along the axial direction; the linear air gap (10) is divided into an inner air gap and an outer air gap by a linear motor rotor (4), the inner cavity of the hydraulic cylinder body (5) is divided into a pump liquid cavity Q, a pump air cavity A1 and a pump air cavity A2 by a plunger pump rotor, wherein the volume of the pump air cavity A2 is larger than that of the pump air cavity A1; the pump air cavity A1 and the pump air cavity A2 are communicated with the environment only through inner and outer air gaps and vent holes on the end cover (1) of the linear motor, and the pump air cavity A1 and the pump air cavity A2 are communicated only through the inner and outer air gaps.
The Halbach permanent magnet array is used for the linear motor to improve air gap flux density, and the rotor (4) of the linear motor is of a moving coil type or a moving magnet type. The linear motor rotor (4) is a moving coil type self-radiating electromagnetic direct-drive plunger pump as shown in fig. 3, an outer stator (2) of the linear motor comprises an outer yoke (2.1) and a permanent magnet array (2.2), and the linear motor rotor (4) comprises a coil (4.1) and a coil framework. Coil (4.1) reciprocating motion as the main heat source, the air that the pump air cavity pump was pumped and coil (4.1) direct contact, the natural heating effect further promotes, does the utility model discloses a preferred scheme.
The linear motor rotor (4) directly drives the hydraulic cylinder piston (6), and the stroke of the plunger pump rotor is the sum of the distance from the hydraulic cylinder piston (6) to the inner end face of the pump liquid cavity Q end of the hydraulic cylinder body (5) and the distance from the inner end face of the pump gas cavity end of the linear motor rotor (4) to the end face of the pump gas cavity end of the linear motor inner stator (3).
The axial section of the vent hole on the linear motor end cover (1) is rectangular, and the vent hole is an equal-diameter through hole with the same size. As shown in fig. 2, the total area of the vent holes (1.1) needs to be designed according to actual working conditions so as to optimize the pumping capacity of air and the movement of air inside the self-heat dissipation type electromagnetic direct-drive plunger pump.
The liquid outlet valve (8) and the liquid inlet valve (9) are passive one-way valves, the number of the liquid outlet valves is not less than 1, and the end surfaces of the mounting ends of the liquid outlet valve (8) and the liquid inlet valve (9) and the inner end surface of the Q end of the pump liquid cavity of the hydraulic cylinder body (5) are in the same plane.
The linear motor rotor (4) directly drives the plunger pump rotor integrated with the hydraulic cylinder piston (6) to complete liquid pumping/sucking at the end of the pump liquid cavity Q and complete air sucking/pumping in the pump air cavity A1 and the pump air cavity A2.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (6)
1. A self-radiating electromagnetic direct-drive plunger pump comprises a linear motor end cover (1), an outer stator (2), an inner stator (3), a rotor (4), a hydraulic cylinder body (5), a hydraulic cylinder piston (6), a valve block (7), a liquid outlet valve (8), a liquid inlet valve (9) and an air gap (10); the electromagnetic direct-drive plunger pump is characterized by comprising a linear motor outer stator (2) and an inner stator (3) which are coaxially fixed through a linear motor end cover (1), the motor outer stator (2) and a valve block (7) are coaxially fixed through a hydraulic cylinder body (5) by adopting screws, axial end faces are parallel to each other, the valve block (7) is provided with a liquid outlet valve (8), the axis of a liquid inlet valve (9) is parallel to the axis of the linear motor, and the valve block is used as an electromagnetic direct-drive plunger pump stator; the linear motor rotor (4) is connected with a hydraulic cylinder piston (6) through a countersunk head screw to serve as an electromagnetic direct-drive plunger pump rotor; the two axial end faces of the linear motor outer stator (2) and the inner stator (3) are respectively on the same plane and are parallel to the axial end face of the hydraulic cylinder piston (6) and the axial end face of the linear motor rotor (4); an air gap (10) is formed between the outer stator (2) and the inner stator (3) of the linear motor, the plunger pump rotor is installed in an inner cavity formed by the air gap (10) and the hydraulic cylinder body (5), a sliding seal is adopted between the hydraulic cylinder piston (6) and the hydraulic cylinder body (5), and the electromagnetic direct-drive plunger pump rotor can move along the axial direction; the linear air gap (10) is divided into an inner air gap and an outer air gap by a linear motor rotor (4), the inner cavity of the hydraulic cylinder body (5) is divided into a pump liquid cavity Q, a pump air cavity A1 and a pump air cavity A2 by a plunger pump rotor, wherein the volume of the pump air cavity A2 is larger than that of the pump air cavity A1; the pump air cavity A1 and the pump air cavity A2 are communicated with the environment only through inner and outer air gaps and vent holes on the end cover (1) of the linear motor, and the pump air cavity A1 and the pump air cavity A2 are communicated only through the inner and outer air gaps.
2. The self-radiating electromagnetic direct-drive plunger pump as claimed in claim 1, wherein the linear motor is provided with a Halbach permanent magnet array to improve air gap flux density, and the linear motor rotor (4) is of a moving coil type or a moving magnet type.
3. The self-radiating electromagnetic direct-drive plunger pump as claimed in claim 1, wherein the linear motor rotor (4) directly drives the hydraulic cylinder piston (6), and the stroke of the plunger pump rotor is the sum of the distance from the hydraulic cylinder piston (6) to the inner end face of the pump liquid cavity Q end of the hydraulic cylinder body (5) and the distance from the inner end face of the pump air cavity end of the linear motor rotor (4) to the end face of the pump air cavity end of the linear motor inner stator (3).
4. The self-radiating electromagnetic direct-drive plunger pump as claimed in claim 1, wherein the axial cross section of the vent hole in the end cover (1) of the linear motor is rectangular, and the vent hole is a uniform-diameter through hole with the same size.
5. The self-heat-dissipation electromagnetic direct-drive plunger pump as recited in claim 1, wherein the liquid outlet valve (8) and the liquid inlet valve (9) are passive one-way valves, the number of the passive one-way valves is not less than 1, and the end surfaces of the installation ends of the liquid outlet valve (8) and the liquid inlet valve (9) and the inner end surface of the Q end of the pump liquid cavity of the hydraulic cylinder body (5) are in the same plane.
6. The self-dissipating electromagnetic direct-drive plunger pump according to claim 1, characterized in that the linear motor mover (4) directly drives the integrated plunger pump mover of the hydraulic cylinder piston (6) to perform liquid pumping/suction at the pump liquid chamber Q end while performing air pumping/suction in the pump air chamber a1 and the pump air chamber a 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650020.4U CN212250369U (en) | 2020-04-26 | 2020-04-26 | From heat dissipation formula electromagnetism directly drives plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020650020.4U CN212250369U (en) | 2020-04-26 | 2020-04-26 | From heat dissipation formula electromagnetism directly drives plunger pump |
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| Publication Number | Publication Date |
|---|---|
| CN212250369U true CN212250369U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020650020.4U Expired - Fee Related CN212250369U (en) | 2020-04-26 | 2020-04-26 | From heat dissipation formula electromagnetism directly drives plunger pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306032A (en) * | 2020-04-26 | 2020-06-19 | 山东理工大学 | From heat dissipation formula electromagnetism directly drives plunger pump |
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2020
- 2020-04-26 CN CN202020650020.4U patent/CN212250369U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306032A (en) * | 2020-04-26 | 2020-06-19 | 山东理工大学 | From heat dissipation formula electromagnetism directly drives plunger pump |
| CN111306032B (en) * | 2020-04-26 | 2024-09-20 | 山东理工大学 | Self-radiating electromagnetic direct-drive plunger pump |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |