CN209855983U - High-integration servo variable plunger pump - Google Patents
High-integration servo variable plunger pump Download PDFInfo
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- CN209855983U CN209855983U CN201920501794.8U CN201920501794U CN209855983U CN 209855983 U CN209855983 U CN 209855983U CN 201920501794 U CN201920501794 U CN 201920501794U CN 209855983 U CN209855983 U CN 209855983U
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- oil
- motor
- pump
- plunger
- rotor
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Abstract
The utility model discloses a high integrated servo variable plunger pump, it includes: the oil pump comprises a servo motor junction box, a right oil way disc, a right fixing seat, a motor shell, a motor stator, a motor coil, a left fixing seat, a left oil way disc, an oil distribution disc, a motor rotor, an oil pump cylinder body, a plunger, a central shaft, a swash plate and a swash plate fixing seat. The utility model provides a high integrated servo variable plunger pump, put into the high integrated product in the servo motor cavity with quantitative plunger pump, popular point says, be exactly with the oil pump integration in servo motor's rotor axle center the inside, that is to say, the oil pump equals servo motor's rotor axle center, the cylinder shape of servo motor rotor is made to the pump case, pump case hole and cylinder body cooperation, and there is the keyway, servo motor drive rotor (being the pump case) is rotatory, the cylinder body rotates thereupon, later theory of operation is the same with ordinary oil pump, through rotatory drive piston motion, accomplish the process of oil-well pump oil, so whole area is little, can satisfy more occasions and use.
Description
Technical Field
The utility model relates to a variable plunger pump, concretely relates to servo type variable plunger pump of high integration belongs to plunger pump technical field.
Background
The traditional variable plunger pump achieves the purpose of adjusting the flow by adjusting the inclination of a swash plate and a cylinder body through a servo valve and then locking a swash plate set screw. The flow regulation mode has low regulation precision, and is more complicated to operate under the condition of meeting the requirement of frequently changing the flow.
In addition, the conventional variable displacement plunger pump works in the following manner: the motor works uninterruptedly, and the pressure of the oil way is kept through the pressure relief of the overflow valve. The working mode has low working efficiency and serious energy consumption, the waiting time of the oil pressure station is equal to the waste of electric power, and simultaneously, the oil temperature is kept at a higher temperature, so that the damage to an oil circuit and sealing elements of a series of oil cylinder oil pumps is increased, and the aging speed of the oil circuit and the sealing elements is accelerated.
In addition, after the traditional variable plunger pump is installed with a motor and an oil circuit workstation, the occupied area is large, and the use requirements are difficult to meet on some occasions.
SUMMERY OF THE UTILITY MODEL
For solving the deficiency of the prior art, the utility model aims to provide a servo variable plunger pump that high integrated, adjust the precision height, convenient operation, power consumption are low, the heat dissipation is good, ageing is slow.
In order to achieve the above object, the utility model adopts the following technical scheme:
a highly integrated servo variable displacement plunger pump, comprising: servo motor terminal box, right oil circuit dish, right fixing base, motor casing, motor stator and coil, left fixing base, left oil circuit dish, join in marriage food tray, electric motor rotor, oil pump cylinder body, plunger, center pin, sloping cam plate and sloping cam plate fixing base, wherein:
the right oil way disc and the left oil way disc are respectively installed at two ends of the motor shell through a right fixing seat and a left fixing seat, an oil inlet hole, an oil return hole and a pressure oil outlet are formed in the left oil way disc, a first oil cavity and a second oil cavity which are sealed and independent relatively are formed in the left oil way disc, the first oil cavity is communicated with the oil inlet hole, the second oil cavity is communicated with a plunger oil cavity of the oil pump cylinder body through an oil distribution disc, a third oil cavity is formed in the right oil way disc, a plurality of motor shell oil cavities are formed in the motor shell, and the first oil cavity and the second oil cavity are communicated with the third oil cavity through the motor shell oil cavities;
the motor stator and the coil are arranged on the inner side of the motor shell, the motor rotor is arranged on the inner side of the motor stator and the coil, the oil pump cylinder body is arranged on the inner side of the motor rotor and positioned on the left half section of the motor rotor, the motor rotor is connected with the oil pump cylinder body through a key groove, and the oil distribution disc is arranged on the left end face of the oil pump cylinder body;
the plunger piston and the central shaft are both arranged in the oil pump cylinder body, and one end of the plunger piston and one end of the central shaft are both connected with the swash plate;
and the servo motor junction box is arranged on the outer side of the right oil circuit disc and is connected with a coil in the motor shell.
The highly integrated servo variable displacement plunger pump is characterized in that the first oil chamber and the second oil chamber are respectively distributed on the left half part and the right half part of the left oil passage disc.
The highly integrated servo variable plunger pump is characterized in that 12 motor casing oil cavities are formed in the motor casing, the left end openings of 6 adjacent motor casing oil cavities are communicated with the first oil cavity, the left end openings of the other 6 adjacent motor casing oil cavities are communicated with the second oil cavity, and the right end openings of the 12 motor casing oil cavities are communicated with the third oil cavity.
The highly integrated servo variable plunger pump is characterized in that the oil cavity of the motor casing is an arc-shaped cavity.
The highly integrated servo variable displacement plunger pump is characterized in that the swash plate is mounted on the swash plate fixing seat, and the swash plate fixing seat are both arranged on the inner side of the motor rotor and are located on the right half section of the motor rotor.
The highly integrated servo variable displacement plunger pump is characterized in that the swash plate fixing seat is fixedly mounted on the right fixing seat through screws and connected with the right fixing seat.
The utility model discloses an useful part lies in:
(1) the utility model provides a high integrated servo variable plunger pump, put into the high integrated product in the servo motor cavity with quantitative plunger pump, the popular point says, just integrate the oil pump in servo motor's rotor axle center the inside, that is to say, the oil pump equals servo motor's rotor axle center, the cylinder shape of servo motor rotor is made to the pump case, pump case hole and cylinder body cooperation, and there is the keyway, servo motor drive rotor (being the pump case) is rotatory, the cylinder body rotates along with it, later theory of operation is the same with ordinary oil pump, drive the piston motion through the rotation, accomplish the process of oil-pumping pump oil, so whole area is little, can satisfy more occasions and use;
(2) the utility model provides a high integrated servo variable plunger pump adopts alternating current servo motor control ration plunger pump, has realized the effect of variable plunger pump, not only controls accurately, and flow control precision is high, can be fine satisfy the user demand to the equipment that oil delivery volume precision required height, and to the equipment that the flow requirement frequently changed, also can be fine reply, it is very convenient to operate;
(3) the utility model provides a high integrated servo variable plunger pump, owing to adopt alternating current servo motor to control quantitative plunger pump, so need not like traditional variable plunger pump motor long term time period power operation and overflow valve pressure release keep the pressure of oil circuit, only need through sensor feedback control alternating current servo motor suitably operate a period of time when the oil circuit steps down, shut down or the ultralow power operation after the compensation reaches pressure, the power consumption is very low;
(4) the utility model provides a high integrated servo variable plunger pump, because the hydraulic oil of oil circuit is not long-time high-pressure high-speed circulation, so the oil temperature has enough time to cool down in the workstation;
(5) the utility model provides a high integrated servo variable plunger pump, hydraulic oil gets into first oil pocket through preceding oil circuit dish oil inlet, then lead to the third oil pocket of back oil circuit dish through 6 arc chambeies of motor casing, first oil pocket and second oil pocket are relatively sealed independent, they communicate at the third oil pocket through the arc hole of motor casing, because oil pump work plunger oil absorption forms the negative pressure, first oil pocket negative pressure, absorb oil at the third oil pocket of back oil circuit dish through 6 arc chambeies of motor casing, form an oil circuit circulation in the motor casing from this, help the servo motor heat dissipation, also satisfy the fuel feeding of interior oil pump simultaneously;
(6) the utility model provides a high integrated servo variable plunger pump, because servo motor dispels the heat, the oil temperature has had very big improvement, so all sealing element of oil circuit have obtained fine protection, the effectual solution of the fast problem of ageing.
Drawings
FIG. 1 is a schematic view of a conventional constant displacement plunger pump;
fig. 2 is a schematic perspective view of a highly integrated servo variable displacement plunger pump according to the present invention;
FIG. 3 is a cross-sectional a-a view of the highly integrated servo variable displacement plunger pump of FIG. 2;
FIG. 4 is a b-b cross-sectional view of the highly integrated servo variable displacement plunger pump of FIG. 2;
FIG. 5 is a schematic structural diagram of the left oil passage disc (connected with the left fixed seat) in FIG. 3;
FIG. 6 is a schematic view of the interior of the left oil pan (connected to the motor case) of FIG. 5;
fig. 7 is a schematic structural view of the inside of the right oil pan (connected with the motor case) in fig. 3.
The meaning of the reference symbols in the figures:
101-driving shaft, 102-flange plate, 103-pump body, 104-pump shell, 105-return plate, 106-swash plate, 107-end cover, 108-framework oil seal, 109-inlet and outlet, 110-oil distribution plate, 111-cylinder body, 112-plunger and 113-slipper;
201-servo motor junction box, 202-right oil circuit disc, 203-right fixed seat, 204-motor shell, 205-motor stator and coil, 206-left fixed seat, 207-left oil circuit disc, 208-oil distribution disc, 209-motor rotor, 210-oil pump cylinder body, 211-plunger, 212-central shaft, 213-swash plate, 214-swash plate fixed seat, 215-motor shell oil cavity, 216-first oil cavity, 217-second oil cavity, 218-pressure oil outlet, 219-third oil cavity, 220-oil inlet hole and 221-oil return hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 2, fig. 3 and fig. 4, the utility model provides a high integrated servo variable plunger pump, it improves and obtains on the basis of quantitative plunger pump's structure, and this high integrated servo variable plunger pump's structure includes: servo motor junction box 201, right oil circuit dish 202, right fixing base 203, motor casing 204, motor stator and coil 205, left fixing base 206, left oil circuit dish 207, join in marriage oil pan 208, motor rotor 209 (i.e. oil pump housing), oil pump cylinder 210, plunger 211, center pin 212, swash plate 213 and swash plate fixing base 214.
The left fixing seat 206 and the right fixing seat 203 are respectively installed at the left end and the right end of the motor casing 204, and are used for fixing the left oil circuit disc 207 and the right oil circuit disc 202 on the motor casing 204.
The left oil pan 207 and the right oil pan 202 are respectively installed on the outer side of the left fixing seat 206 and the outer side of the right fixing seat 203.
Referring to fig. 5 and 6, an oil inlet 220, an oil return hole 221 and a pressure oil outlet 218 are formed on the outer surface of the left oil pan 207, a first oil chamber 216 and a second oil chamber 217 which are relatively sealed and independent are formed inside the left oil pan 207 and are respectively distributed on the left half part and the right half part of the left oil pan 207, wherein the first oil chamber 216 is communicated with the oil inlet 220, the second oil chamber 217 is communicated with a plunger oil chamber of an oil pump cylinder body (210) (the left half part) through an oil distribution pan (208) (the left half part), and the oil return hole 221 is communicated with oil in the oil pump (except the plunger oil chamber), namely, oil which leaks a little during operation is discharged. The pressure oil outlet port 218 is also communicated with the plunger oil chamber of the oil pump cylinder block (210) (right half) through the oil distribution plate 208 (right half).
Referring to fig. 7, a third oil chamber 219 is formed inside the right oil pan 202.
The motor casing 204 is formed with 12 arc-shaped cavities, namely motor casing oil cavities 215, the 12 arc-shaped cavities are uniformly distributed on the motor casing 204 and extend along the axial direction of the motor casing 204, the left end openings of 6 adjacent arc-shaped cavities are communicated with a first oil cavity 216 on the left oil circuit plate 207, the left end openings of the other 6 adjacent arc-shaped cavities are communicated with a second oil cavity 217 on the left oil circuit plate 207, and the right end openings of the 12 arc-shaped cavities are communicated with a third oil cavity 219 on the right oil circuit plate 202. The hydraulic oil enters the first oil chamber 216 through the oil inlet 220 on the left oil plate 207 and then passes through the 6 arc-shaped chambers on the motor shell 204 to the third oil chamber 219 on the right oil plate 203, and the first oil chamber 216 and the second oil chamber 217 are relatively sealed and independent and are communicated with each other at the third oil chamber 219 through the 6 arc-shaped chambers on the motor shell 204.
The motor stator and the coil 205 are provided inside the motor case 204.
The motor rotor 209 is disposed inside the motor stator and the coil 205, and the motor rotor 209 is an oil pump housing.
The oil pump cylinder 210 is arranged on the inner side of the motor rotor 209 and located on the left half section of the motor rotor 209, the oil pump cylinder 210 is provided with 7 equal plunger oil cavities, and the motor rotor 209 is connected with the oil pump cylinder 210 through a key groove.
A plunger 211 and a center shaft 212 are provided in the oil pump cylinder 210, and one end of the plunger 211 and one end of the center shaft 212 are connected to a swash plate 213.
Swash plate 213 installs on swash plate fixing base 214, and swash plate 213 and swash plate fixing base 214 all set up the inboard at electric rotor 209, and are located electric rotor 209's right half section, and swash plate 213 forms certain angle with oil pump cylinder block 210.
The swash plate fixing base 214 is fixedly mounted on the right fixing base 203 by screws.
An oil distribution pan 208 is provided on the left end face of the oil pump cylinder 210.
The servo motor junction box 201 is arranged on the outer side of the right oil circuit disc 202, the input end of the servo motor junction box is connected with a power supply, and the output end of the servo motor junction box is connected with a coil in the motor shell 204.
The utility model provides a working method of servo variable plunger oil pump as follows:
the hydraulic oil enters the first oil chamber 216 through the oil inlet 220 on the left oil channel plate 207, and then passes through the 6 arc-shaped chambers on the motor shell 204, namely the motor shell oil chamber 215, to lead to the third oil chamber 219 of the right oil channel plate 203, and the first oil chamber 216 and the second oil chamber 217 are relatively sealed and independent and are communicated with each other at the third oil chamber 219 through the 6 arc-shaped chambers on the motor shell 204, namely the motor shell oil chamber 215. Because the plunger 211 absorbs oil to form negative pressure, the first oil cavity 216 absorbs negative pressure through the 6 arc-shaped cavities on the motor shell 204, namely the motor shell oil cavity 215, absorbing oil at the third oil cavity 219 of the right oil disk 203, so that an oil circuit circulation in the motor shell 204 is formed, the oil circuit circulation can help the servo motor to dissipate heat, and meanwhile, the oil supply of an inner oil pump can be met;
next, the servo motor operates, the motor rotor 209 (i.e., the oil pump housing) rotates, the motor rotor 209 and the oil pump cylinder 210 rotate together through the key slot, the swash plate 213 rotates together with the oil pump cylinder 210 through the plunger 211, the oil pump cylinder 210 has 7 equally divided plunger oil chambers, because the swash plate 213 and the oil pump cylinder 210 form a certain angle, the plunger 211 reciprocates back and forth once every rotation of the oil pump cylinder 210 and the swash plate 213, and the specific working principle of oil suction and oil pressing of the oil pump is the same as that of a common plunger pump.
Therefore, the oil pump is integrated in the rotor axis of the servo motor, the oil pump is equal to the rotor axis of the servo motor, the pump shell is made into a cylindrical shape of the rotor of the servo motor, an inner hole of the pump shell is matched with the cylinder body and is provided with a key groove, the servo motor drives the rotor (namely the pump shell) to rotate, the cylinder body rotates along with the rotor, the later working principle is the same as that of a common oil pump, and the process of pumping oil is completed by driving the piston to move through rotation.
It should be noted that the above-mentioned embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (6)
1. A highly integrated servo variable displacement plunger pump, comprising: servo motor terminal box (201), right oil circuit dish (202), right fixing base (203), motor casing (204), motor stator and coil (205), left fixing base (206), left oil circuit dish (207), join in marriage oil pan (208), electric motor rotor (209), oil pump cylinder (210), plunger (211), center pin (212), sloping cam plate (213) and sloping cam plate fixing base (214), wherein:
the oil pump is characterized in that the right oil circuit disc (202) and the left oil circuit disc (207) are respectively installed at two ends of a motor shell (204) through a right fixing seat (203) and a left fixing seat (206), an oil inlet hole (220), an oil return hole (221) and a pressure oil outlet (218) are formed in the left oil circuit disc (207), a first oil cavity (216) and a second oil cavity (217) which are sealed and independent relatively are formed inside the left oil circuit disc (207), the first oil cavity (216) is communicated with the oil inlet hole (220), the second oil cavity (217) is communicated with a plunger oil cavity of an oil pump cylinder body (210) through an oil distribution disc (208), a third oil cavity (219) is formed inside the right oil circuit disc (202), a plurality of motor shell oil cavities (215) are formed in the motor shell (204), and the first oil cavity (216) and the second oil cavity (217) are communicated with the third oil cavity (219) through a motor;
the motor stator and the coil (205) are arranged on the inner side of the motor shell (204), the motor rotor (209) is arranged on the inner side of the motor stator and the coil (205), the oil pump cylinder body (210) is arranged on the inner side of the motor rotor (209) and located on the left half section of the motor rotor (209), the motor rotor (209) is connected with the oil pump cylinder body (210) through a key groove, and the oil distribution disc (208) is arranged on the left end face of the oil pump cylinder body (210);
the plunger (211) and the central shaft (212) are both arranged in the oil pump cylinder body (210), and one ends of the plunger (211) and the central shaft (212) are both connected with the swash plate (213);
the servo motor junction box (201) is arranged on the outer side of the right oil circuit disc (202) and is connected with a coil in the motor shell (204).
2. The highly integrated servo variable plunger pump according to claim 1, wherein the first oil chamber (216) and the second oil chamber (217) are distributed in the left half and the right half of the left oil pan (207), respectively.
3. The highly integrated servo variable plunger pump as claimed in claim 1, wherein 12 motor casing oil chambers (215) are formed on the motor casing (204), the left end openings of 6 adjacent motor casing oil chambers (215) are communicated with the first oil chamber (216), the left end openings of the other 6 adjacent motor casing oil chambers (215) are communicated with the second oil chamber (217), and the right end openings of the 12 motor casing oil chambers (215) are communicated with the third oil chamber (219).
4. The highly integrated servo variable plunger pump of claim 3 wherein the motor housing oil chamber (215) is an arcuate chamber.
5. The highly integrated servo variable displacement piston pump according to claim 1, wherein the swash plate (213) is mounted on a swash plate holder (214), and the swash plate (213) and the swash plate holder (214) are both disposed inside the motor rotor (209) and located in the right half section of the motor rotor (209).
6. The highly integrated servo variable displacement pump according to claim 5, wherein the swash plate holder (214) is connected to the right holder (203) by being screw-fixed thereto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501794.8U CN209855983U (en) | 2019-04-15 | 2019-04-15 | High-integration servo variable plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501794.8U CN209855983U (en) | 2019-04-15 | 2019-04-15 | High-integration servo variable plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209855983U true CN209855983U (en) | 2019-12-27 |
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ID=68937396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920501794.8U Expired - Fee Related CN209855983U (en) | 2019-04-15 | 2019-04-15 | High-integration servo variable plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209855983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931239A (en) * | 2019-04-15 | 2019-06-25 | 佛山市荣星数控设备制造有限公司 | A kind of highly integrated servo-type Variable plunger pump |
| CN117006038A (en) * | 2023-08-21 | 2023-11-07 | 中南大学 | Double-oil-distribution double-oil-outlet self-priming plunger pump |
-
2019
- 2019-04-15 CN CN201920501794.8U patent/CN209855983U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109931239A (en) * | 2019-04-15 | 2019-06-25 | 佛山市荣星数控设备制造有限公司 | A kind of highly integrated servo-type Variable plunger pump |
| CN117006038A (en) * | 2023-08-21 | 2023-11-07 | 中南大学 | Double-oil-distribution double-oil-outlet self-priming plunger pump |
| CN117006038B (en) * | 2023-08-21 | 2024-03-12 | 中南大学 | Double-oil-distribution double-oil-outlet self-priming plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |