CN113931903B - Intelligent electrohydraulic actuator - Google Patents
Intelligent electrohydraulic actuator Download PDFInfo
- Publication number
- CN113931903B CN113931903B CN202111191068.9A CN202111191068A CN113931903B CN 113931903 B CN113931903 B CN 113931903B CN 202111191068 A CN202111191068 A CN 202111191068A CN 113931903 B CN113931903 B CN 113931903B
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- hydraulic cylinder
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- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 32
- 239000010720 hydraulic oil Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/18—Combined units comprising both motor and pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
An intelligent electrohydraulic actuator belongs to the technical field of actuators and comprises a hydraulic cylinder, an oil pump and a motor, wherein the hydraulic cylinder is driven by the oil pump, and the oil pump is driven by a motor assembled in the motor. The hydraulic cylinder is assembled on one side of the confluence seat, and the confluence seat is sequentially provided with an oil pump part, a manual operation part, a motor part and a remote transmission part. Compared with the prior art, the electric and manual modes can be freely switched, the fault of the electric mechanism can be conveniently handled, the equipment detection and data remote transmission functions are realized, workers can monitor the running condition of the equipment through the data terminal, the fault can be conveniently found in time, and the equipment is maintained immediately.
Description
Technical Field
The invention belongs to the technical field of actuators, and particularly relates to an intelligent electrohydraulic actuator.
Background
An actuator is an industrial automation instrument and is generally composed of an actuating mechanism, an adjusting mechanism and an accessory. The actuator can be divided into electric, pneumatic, hydraulic, electric composite type and electrohydraulic composite type according to different working energy sources; the analog quantity type and the digital quantity type can be classified according to the input signal.
The electro-hydraulic actuator has the output force of 22 ten thousand newtons, the displacement of 200 millimeters, and compared with the traditional pneumatic and electric actuators, the electro-hydraulic actuator has the characteristics of large stroke, large thrust or moment, high intelligent degree, quick response time, high sensitivity, compact mechanism, fire resistance and the like. The existing electrohydraulic actuator is designed to be fully automatic for reducing the volume, or a manual operation mechanism and an electric mechanism are designed integrally, and when the electric mechanism fails in the working process, the manual operation mechanism cannot be used. In addition, the existing electrohydraulic actuator has no equipment detection and data remote transmission functions, and when the electrohydraulic actuator fails, workers cannot find and solve the problem in time.
Accordingly, the present application has been further designed and developed based on some of the above prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the intelligent electrohydraulic actuator which can freely switch between an electric mode and a manual mode, is convenient for coping with faults of an electric mechanism, has the functions of equipment detection and data remote transmission, allows staff to monitor the running condition of equipment through a data terminal, is convenient for finding faults in time and is maintained immediately.
In order to solve the technical problems, the invention is solved by the following technical scheme.
An intelligent electrohydraulic actuator comprises a hydraulic cylinder, an oil pump part and a motor part, wherein the hydraulic cylinder is driven by the oil pump part, and the oil pump part is driven by a motor assembled in the motor part. Wherein,
the hydraulic cylinder is assembled on one side of the confluence seat, and the confluence seat is sequentially provided with an oil pump part, a manual operation part, a motor part and a remote transmission part. The manual operation part comprises a first bevel gear and a second bevel gear, the first bevel gear is assembled on the motor output shaft, an operation assembly is arranged on the second bevel gear, and the operation assembly penetrates through the side wall of the manual operation part and is used for manual operation, and manual operation can be performed when the motor fails. The remote transmission module is arranged in the remote transmission part, so that data can be remotely transmitted to the terminal, and the monitoring of the running condition of the device is facilitated.
In a preferred embodiment, the operating assembly comprises a connecting shaft and a sleeve shaft, the connecting shaft and the second bevel gear are fixedly connected, and the end of the sleeve shaft is provided with a knob. The connecting shaft is provided with a movable sleeve, the movable sleeve is provided with a sliding groove, the outer sleeve shaft is provided with a sliding protrusion corresponding to the sliding groove, and the sliding groove and the sliding protrusion are matched to realize movement of the second bevel gear. The end part of the connecting shaft extends into the outer sleeve shaft, and an operating spring is connected between the end part of the connecting shaft and the bottom of the outer sleeve shaft to reset the second bevel gear.
In a preferred embodiment, the piston rod end of the hydraulic cylinder is fitted with an impact piston and a positioning piston in sequence. The impact piston is equipped with an impact assembly and an overflow assembly. The impact assembly is beneficial to counteracting impact force on the piston caused by expansion and contraction of the piston rod, prolonging service life of the device and stabilizing hydraulic pressure in the hydraulic cylinder.
In a preferred embodiment, the hydraulic cylinder and the confluence seat are provided with a first flow passage and a second flow passage, the inlet of the first flow passage is arranged at the lower part of the cylinder body, the inlet of the second flow passage is arranged at the upper part of the cylinder body, and the flow passages of two cavities of the hydraulic cylinder are integrally designed, so that the volume of the device is greatly reduced.
In a preferred embodiment, one side of the confluence seat is provided with a manual relief valve, and the manual relief valve stretches into a first flow passage in the confluence seat, so that the hydraulic oil in the device is convenient to replace.
In a preferred embodiment, the first flow channel and the second flow channel are connected by a connecting channel. The first runner is equipped with first subchannel one side, first subchannel end is equipped with the end cap, is equipped with spacing valve plunger in the first subchannel, can guarantee the pressure stability in the runner. One side of the second flow channel is provided with a second sub-channel, and the tail end of the second sub-channel is provided with a plug, so that the pressure stabilization is facilitated. The collecting seat bottom is equipped with the mounting groove, the mounting groove stretches into first runner for install the filter, the filter is located the runner and is favorable to guaranteeing the filter effect, and makes things convenient for the change in later stage.
In a preferred embodiment, the oil pump part comprises a pump body and a shell, the pump body is assembled in the shell, an oil storage cavity is formed between the shell and the pump body, and the shell is provided with an oil filling cover, so that later-stage hydraulic oil replacement is facilitated.
In a preferred embodiment, the pump body is a gear pump, and a first suction and discharge oil duct and a second suction and discharge oil duct are arranged on two sides of a gear pair of the pump body. The pump body lower part is equipped with first check plug screw and second check plug screw, first check plug screw is linked together with first oil suction and discharge duct, first reposition of redundant personnel way. The second check screw plug is communicated with the second suction and discharge oil duct and the second sub-runner, so that hydraulic oil can be prevented from flowing back, and the stability of the pressure in the device when the piston rod of the hydraulic cylinder is in an extending state is ensured.
In a preferred embodiment, the ends of the first and second suction and discharge oil passages are fitted with plugs to prevent excessive or insufficient pressure in the body.
In a preferred embodiment, the upper part of the motor part is provided with a sensor, and the sensor is connected with the remote transmission module, so that the remote monitoring of the running condition of the actuator device is facilitated, and the timely discovery of unexpected conditions is ensured.
Compared with the prior art, the application has the following beneficial effects: an intelligent electrohydraulic actuator can freely switch between electric and manual modes, is convenient for coping with faults of an electric mechanism, has the functions of equipment detection and data remote transmission, allows staff to monitor the running condition of equipment through a data terminal, is convenient for finding faults in time and is maintained immediately.
Drawings
Fig. 1 is a schematic perspective view of the present application.
Fig. 2 is a plan sectional view of the present application.
Fig. 3 is a sectional view at the hydraulic cylinder B.
Fig. 4 is an exploded view of the impact piston and positioning piston.
Fig. 5 is a schematic illustration of the cooperation of the impingement assembly and the overflow assembly.
Fig. 6 is a front and back perspective view of the bus seat.
Fig. 7 is a plan sectional view of the confluence seat.
Fig. 8 is an exploded view of the oil pump section.
Fig. 9 is an exploded view of the pump body.
Fig. 10 is a cross-sectional view of a pump body portion structure.
Fig. 11 is a schematic view of the internal structure of the manual operation section, the motor section, and the remote transmission section.
Fig. 12 is a schematic structural view of the operating assembly.
The marks in the figure:
1-a hydraulic cylinder; 11-a piston rod; 12-an impulse piston; 121-an impingement hole; 122-overflow aperture; 13-an impact assembly; 131-impact push rod; 132-impact spring; 133-impacting the steel balls; 134-impact pad; 14-an overflow assembly; 141-bayonet lock; 142-overflow spring; 143-overflow copper sleeve; 144-overflow steel balls; 15-positioning a piston; 16-end caps;
2-a confluence seat; 21-a first flow channel; 211-a first sub-flow channel; 212-limiting valve plunger; 22-a second flow channel; 221-a second runner; 23-manual bleed valve; 24-connecting channels; 25-plugs; 26-mounting slots; 27-a filter;
3-an oil pump unit; 31-a pump body; 311-gear pair; 312-a first suction and discharge oil passage; 313-first check screw plug; 314-a second suction and discharge oil passage; 315-a second check plug; 32-a housing; 321-a filler cap; 322-ground wire; 33-an oil storage chamber;
4-a manual operation part; 41-a first bevel gear; 42-a second bevel gear; 43-an operating assembly; 431—a connecting shaft; 432-moving the sleeve; 433-sliding grooves; 434-a sleeve shaft; 435-sliding protrusions; 436-operating a spring; 437-knob;
5-a motor part; 51-a motor output shaft; 52-a sensor; 53-motor;
6-a remote transmission part; 61-a remote transmission module.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
In the following embodiments, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout, and the embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms: the directions of the center, the longitudinal, the lateral, the length, the width, the thickness, the upper, the lower, the front, the rear, the left, the right, the vertical, the horizontal, the top, the bottom, the inner, the outer, the clockwise, the counterclockwise, etc. indicate the directions or the positional relationship based on the directions or the positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and therefore, should not be construed as limiting the present invention. Furthermore, the term: first, second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of features shown. In the description of the present invention, unless explicitly specified and defined otherwise, the terms: mounting, connecting, etc. should be construed broadly and the specific meaning of the terms in the present application will be understood by those skilled in the art in view of the specific circumstances.
Referring to fig. 1 to 12.
An intelligent electrohydraulic actuator comprises a hydraulic cylinder 1, an oil pump part 3 and a motor part 5, wherein the hydraulic cylinder 1 is driven by the oil pump part 3, and the oil pump part 3 is driven by a motor 53 assembled in the motor part 5. The hydraulic cylinder 1 is assembled on one side of the confluence seat 2, and the confluence seat 2 is sequentially provided with an oil pump part 3, a manual operation part 4, a motor part 5 and a remote transmission part 6.
The end of the piston rod 11 of the hydraulic cylinder 1 is fitted with an impact piston 12 and a positioning piston 15 in sequence. The impact piston 12 is provided with evenly distributed impact holes 121, and the impact holes 121 are provided with impact assemblies 13. The impact assembly 13 comprises an impact push rod 131, an impact spring 132, an impact steel ball 133 and an impact pad 134, wherein the impact push rod 131 provides thrust through the impact spring 132 which is fixedly assembled, and the impact steel ball 133 is abutted against the hole on the upper surface of the impact hole 121. The impact assembly 13 is mounted on an impact pad 134, and the end of the piston rod 11 abuts the impact pad 134. The impact assembly 13 arranged in the impact piston 12 is beneficial to counteracting the impact force on the piston caused by the extension and retraction of the piston rod 11, and is beneficial to prolonging the service life of the device. The impact piston 12 is further provided with an overflow hole 122, the overflow hole 122 is provided with an overflow assembly 14, the overflow assembly 14 comprises a bayonet 141, an overflow spring 142, an overflow copper sleeve 143 and an overflow steel ball 144, the overflow spring 142 is arranged between the bayonet 141 and the overflow copper sleeve 143, and provides thrust for the overflow copper sleeve 143 to prop against the overflow steel ball 144, so that the hydraulic pressure inside the hydraulic cylinder 1 is stabilized. The hydraulic cylinder 1 is sealed by an end cap 16.
The hydraulic cylinder 1 and the confluence seat 2 are provided with a first flow passage 21 and a second flow passage 22, the inlet of the first flow passage 21 is arranged at the lower part of the cylinder body, the inlet of the second flow passage 22 is arranged at the upper part of the cylinder body, and the flow passages of the two cavities of the hydraulic cylinder 1 are integrally designed, so that the volume of the device is greatly reduced. The manual relief valve 23 is arranged on one side of the confluence seat 2, and the manual relief valve 23 stretches into the first flow passage 21 in the confluence seat 2, so that the hydraulic oil in the device is convenient to replace. The first flow channel 21 and the second flow channel 22 are connected by a connecting channel 24. A first sub-runner 211 is arranged on one side of the first runner 21, a plug 25 is arranged at the tail end of the first sub-runner 211, and a limit valve plunger 212 is arranged in the first sub-runner 211, so that the pressure stability in the runner can be ensured. A second sub-channel 221 is arranged on one side of the second flow channel 22, and a plug 25 is arranged at the tail end of the second sub-channel 221, which is beneficial to voltage stabilization. The bottom of the confluence seat 2 is provided with a mounting groove 26, the mounting groove 26 stretches into the first runner 21 for mounting a filter 27, the filter 27 is positioned in the runner to be beneficial to guaranteeing the filtering effect, and the later replacement is convenient.
The oil pump part 3 comprises a pump body 31 and a shell 32, the pump body 31 is assembled in the shell 32, an oil storage cavity 33 is formed between the shell 32 and the pump body 31, and an oil filling cover 321 is assembled on the shell 32, so that later-stage hydraulic oil replacement is facilitated. The shell 32 is also provided with a grounding wire 322, so that personal safety is ensured. The pump body 31 is a gear pump, and a first oil suction and discharge channel 312 and a second oil suction and discharge channel 314 are arranged on two sides of a gear pair 311 of the pump body 31. The lower part of the pump body 31 is provided with a first check screw plug 313 and a second check screw plug 315, and the first check screw plug 313 is communicated with the first oil suction channel 312 and the first sub-channel 211. The second check screw plug 315 is communicated with the second suction and exhaust oil duct 314 and the second sub-channel 221, so that the hydraulic oil can be prevented from flowing back, and the stability of the pressure in the device when the piston rod 11 of the hydraulic cylinder 1 is in an extending state is ensured. The ends of the first and second suction oil passages 312 and 314 are equipped with plugs 25 to prevent the pressure in the body from being too high or too low.
The manual operation part 4 comprises a first bevel gear 41 and a second bevel gear 42, the first bevel gear 41 is assembled on the motor output shaft 51, the second bevel gear 42 is provided with an operation assembly 43, and the operation assembly 43 penetrates through the side wall of the manual operation part 4 to be manually operated, so that manual operation can be performed when the motor 53 fails.
Specifically, the operating assembly 43 includes a connection shaft 431 and a sleeve shaft 434, the connection shaft 431 and the second bevel gear 42 are fixedly connected, and a knob 437 is provided at an end of the sleeve shaft 434. The connecting shaft 431 is externally provided with a movable sleeve 432, the movable sleeve 432 is provided with a round concave sliding groove 433, the outer sleeve 434 is provided with a sliding protrusion 435 corresponding to the sliding groove 433, and the sliding groove 433 and the sliding protrusion 435 cooperate to realize the movement of the second bevel gear 42. The end of the connecting shaft 431 extends into the outer sleeve shaft 434, and an operating spring 436 is connected between the end of the connecting shaft 431 and the bottom of the outer sleeve shaft 434 to reset the second bevel gear 42.
The remote transmission module 61 is arranged in the remote transmission part 6, so that data can be remotely transmitted to the terminal, and the monitoring of the running condition of the device is facilitated. The upper part of the motor part 5 is provided with a sensor 52, and the sensor 52 is connected with a remote transmission module 61, so that the remote monitoring of the running condition of the actuator device is facilitated, and the timely discovery of unexpected conditions is ensured.
The working principle of the application is as follows: the motor part 5 drives the gear pair 311 in the oil pump part 3 to rotate, hydraulic oil is pressed into the first oil suction and discharge channel 312, passes through the first check screw plug 313, flows through the first sub-channel 211 and the first channel 21, enters the lower part of the hydraulic cylinder 1, and ejects the piston rod 11 through the piston. During this time, the hydraulic oil is circulated in the device by the presence of the connecting channel 24. When the piston rod 11 needs to be retracted, the rotation direction of the motor 53 is reversed, the hydraulic oil circulation liquid is overturned accordingly, the hydraulic oil at the upper part of the hydraulic cylinder 1 presses down the piston rod 11, and the piston rod 11 is retracted. During the running of the device, the sensor 52 measures and senses the rotating speed of the motor shaft, data are transmitted to the remote transmission module 61, the remote transmission module 61 remotely transmits the data to a data terminal of a worker, and the worker can judge whether the device runs normally or not according to the data.
When the device is operating normally, the second bevel gear 42 and the first bevel gear 41 are in a disengaged state. When the motor 53 fails, the knob 437 on the manual operation section 4 is turned, the slide protrusion 435 on the outer sleeve shaft 434 is turned to one side, and the connection shaft 431 is lifted up by engagement with the slide groove 433, and the second bevel gear 42 and the first bevel gear 41 connected to the connection shaft 431 are engaged. Continuing to rotate the knob 437, the sliding protrusion 435 abuts against the edge of the sliding groove 433, and cannot slide any more, at this time, the connecting shaft 431 rotates together with the outer sleeve shaft 434, and the second bevel gear 42 drives the first bevel gear 41 to rotate, so as to drive the motor output shaft 51 to rotate, and the oil pump starts to work normally. When the manual operation is not required, the knob 437 is released, the connection shaft 431 is restored by the operation spring 436, and the second bevel gear 42 is disengaged from the first bevel gear 41.
Compared with the prior art, the electric and manual modes can be freely switched, the fault of the electric mechanism can be conveniently handled, the equipment detection and data remote transmission functions are realized, workers can monitor the running condition of the equipment through the data terminal, the fault can be conveniently found in time, and the equipment is maintained immediately.
The scope of the present invention includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the invention.
Claims (5)
1. An intelligent electrohydraulic actuator comprises a hydraulic cylinder (1), an oil pump part (3) and a motor part (5), wherein the hydraulic cylinder (1) is driven by the oil pump part (3), the oil pump part (3) is driven by a motor (53) assembled in the motor part (5), and is characterized in that,
the hydraulic cylinder (1) is assembled on one side of the confluence seat (2), and the confluence seat (2) is sequentially provided with an oil pump part (3), a manual operation part (4), a motor part (5) and a remote transmission part (6);
the manual operation part (4) comprises a first bevel gear (41) and a second bevel gear (42), the first bevel gear (41) is assembled on the motor output shaft (51), an operation assembly (43) is arranged on the second bevel gear (42), and the operation assembly (43) penetrates through the side wall of the manual operation part (4) to be manually operated;
a remote transmission module (61) is arranged in the remote transmission part (6) and can remotely transmit data to a terminal;
the end part of a piston rod (11) of the hydraulic cylinder (1) is sequentially provided with an impact piston (12) and a positioning piston (15); the impact piston (12) is provided with an impact assembly (13) and an overflow assembly (14);
the operation assembly (43) comprises a connecting shaft (431) and a sleeve shaft (434), the connecting shaft (431) is fixedly connected with the second bevel gear (42), and a knob (437) is arranged at the end part of the sleeve shaft (434); a movable sleeve (432) is arranged outside the connecting shaft (431), a sliding groove (433) is formed in the movable sleeve (432), and a sliding protrusion (435) is arranged on the outer sleeve shaft (434) corresponding to the sliding groove (433); the end part of the connecting shaft (431) extends into the outer sleeve shaft (434), and an operation spring (436) is connected between the end part of the connecting shaft (431) and the bottom of the outer sleeve shaft (434);
the hydraulic cylinder (1) and the confluence seat (2) are provided with a first flow passage (21) and a second flow passage (22), an inlet of the first flow passage (21) is arranged at the lower part of the cylinder body, and an inlet of the second flow passage (22) is arranged at the upper part of the cylinder body;
a manual relief valve (23) is arranged on one side of the confluence seat (2), and the manual relief valve (23) stretches into a first flow passage (21) in the confluence seat (2); the first flow channel (21) and the second flow channel (22) are connected through a connecting channel (24); a first sub-runner (211) is arranged on one side of the first runner (21), a plug (25) is arranged at the tail end of the first sub-runner (211), and a limit valve plunger (212) is arranged in the first sub-runner (211); a second sub-runner (221) is arranged on one side of the second runner (22), and a plug (25) is arranged at the tail end of the second sub-runner (221); the bottom of the confluence seat (2) is provided with a mounting groove (26), and the mounting groove (26) stretches into the first runner (21) to be used for mounting a filter (27).
2. An intelligent electro-hydraulic actuator according to claim 1, wherein the oil pump part (3) comprises a pump body (31) and a housing (32), the pump body (31) is assembled in the housing (32), an oil storage cavity (33) is formed between the housing (32) and the pump body (31), and an oil filling cover (321) is assembled on the housing (32).
3. The intelligent electrohydraulic actuator of claim 2 wherein said pump body (31) is a gear pump, and a first oil suction and discharge channel (312) and a second oil suction and discharge channel (314) are provided on both sides of a gear pair (311) of said pump body (31); a first check screw plug (313) and a second check screw plug (315) are arranged at the lower part of the pump body (31), and the first check screw plug (313) is communicated with a first oil suction channel (312) and a first sub-channel (211); the second check screw plug (315) is communicated with the second suction and discharge oil duct (314) and the second sub-runner (221).
4. A smart electro-hydraulic actuator according to claim 3, wherein the ends of the first and second suction and discharge channels (312, 314) are fitted with plugs (25).
5. An intelligent electro-hydraulic actuator according to claim 1, characterized in that the upper part of the motor part (5) is equipped with a sensor (52), said sensor (52) being connected to a remote transmission module (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191068.9A CN113931903B (en) | 2021-10-13 | 2021-10-13 | Intelligent electrohydraulic actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191068.9A CN113931903B (en) | 2021-10-13 | 2021-10-13 | Intelligent electrohydraulic actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113931903A CN113931903A (en) | 2022-01-14 |
| CN113931903B true CN113931903B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111191068.9A Active CN113931903B (en) | 2021-10-13 | 2021-10-13 | Intelligent electrohydraulic actuator |
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