CN117366058A - Hydraulic actuating mechanism for simulating load - Google Patents
Hydraulic actuating mechanism for simulating load Download PDFInfo
- Publication number
- CN117366058A CN117366058A CN202311590922.8A CN202311590922A CN117366058A CN 117366058 A CN117366058 A CN 117366058A CN 202311590922 A CN202311590922 A CN 202311590922A CN 117366058 A CN117366058 A CN 117366058A
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- hydraulic
- assembly
- driving piece
- piston
- actuating cylinder
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- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000009467 reduction Effects 0.000 claims abstract description 6
- 238000004088 simulation Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
Classifications
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydraulic actuating mechanism for simulating a load, which comprises a driving piece, a controller and a hydraulic actuating device, wherein the hydraulic actuating device comprises an actuating cylinder, a transmission assembly and a sealing assembly are arranged in the actuating cylinder, the driving piece is fixedly connected with the transmission assembly through a speed reduction assembly, and a supporting assembly is arranged at the bottom of the transmission assembly; the controller is electrically connected with the driving piece, wherein the controller is used for presetting operation parameters, the driving piece drives the transmission assembly to rotate in the actuating cylinder to form a hydraulic space according to the preset operation parameters, and the controller calculates and obtains hydraulic pressure of the driving piece under corresponding torque according to the area of the formed hydraulic space. The mechanism adopts a driving piece to replace the existing hydraulic loading system to be used as the input of the simulation load of the hydraulic control system, the number of parts of the whole mechanism is small, the response time of the operation is greatly shortened in the simulation and given process of the load, and the operation efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of hydraulic machinery, and particularly relates to a hydraulic actuating mechanism for simulating a load.
Background
In tests on hydraulic control systems, it is often necessary to test the performance and stability of the hydraulic control system under certain operating loads; at present, for the test, a set of actuating device with a hydraulic loading system is generally used for realizing the simulation and the given of the load, but the existing hydraulic loading system has larger volume, complex structure and numerous internal elements, and the whole loading system has longer response time period, consumes the operation time and has poorer flexibility in the process of carrying out the load simulation and the given; secondly, after the simulation and the given of the load of the hydraulic control system are achieved, the cleaning of the interior of the hydraulic system is very cumbersome, due to the number of components inside the hydraulic system.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a hydraulic actuating mechanism for simulating a load.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a hydraulic actuation mechanism that simulates a load, comprising: the hydraulic actuating device comprises an actuating cylinder, a transmission assembly and a sealing assembly are arranged in the actuating cylinder, the driving piece is fixedly connected with the transmission assembly through a speed reduction assembly, and a supporting assembly is arranged at the bottom of the transmission assembly; the controller is electrically connected with the driving piece, wherein the controller is used for presetting operation parameters, the driving piece drives the transmission assembly to rotate in the actuating cylinder to form a hydraulic space according to the preset operation parameters, and the controller calculates and obtains hydraulic pressure of the driving piece under corresponding torque according to the area of the formed hydraulic space.
Further, the transmission assembly comprises a piston and a rotating shaft, the piston is arranged in the actuating cylinder, an annular groove is formed in the middle of the piston, two ends of the piston are connected with the inner wall of the actuating cylinder through the sealing assembly, and the hydraulic space in the actuating cylinder is sealed; the supporting component is arranged at the bottom of the rotating shaft, one end of the rotating shaft is fixedly connected with the speed reducing component, the outer side of the middle part of the other end is in threaded connection with the swinging component, and the swinging component is matched with the annular groove and swings left and right under the rotation of the piston.
Further, the swing assembly comprises a shifting head and a swing rod, one end of the swing rod is in threaded connection with the shifting head, the other end of the swing rod is in threaded connection with the rotating shaft, and one end of the swing rod provided with the shifting head is matched with the annular groove of the actuating cylinder.
Further, an opening is formed in one side of the actuating cylinder, matched with the shifting head, and the opening is used for limiting the shifting head after collision with the outer side of the actuating cylinder before the shifting head is separated from the annular groove.
Further, the shifting head is of a cylindrical structure.
Further, the two ends of the actuating cylinder are respectively and fixedly connected with an end cover and a threaded cover, and the end cover and the threaded cover are also connected with the actuating cylinder through a sealing component; one end of the piston penetrates through the end cover to extend outwards, the other end of the piston is movably connected with the adjusting screw, and the threaded cover is in threaded connection with the outer side of the adjusting screw.
Further, a knurled nut is arranged at one end of the adjusting screw connected with the threaded cover, and the knurled nut is positioned at the outer side of the actuating cylinder.
Further, the supporting component comprises a rotating shaft seat and a sealing cover, the rotating shaft seat and the sealing cover are in threaded connection, and the rotating shaft seat and the sealing cover are also in threaded connection with the actuator cylinder to support the actuator cylinder.
Further, the annular groove has an inner diameter of 10mm.
Further, the driving member is a motor.
Compared with the prior art, the invention has the following beneficial effects:
1. the mechanism adopts a driving piece to replace the existing hydraulic loading system to be used as the input of the simulation load of the hydraulic control system, the number of parts of the whole mechanism is small, the response time of the operation is greatly shortened in the simulation and given process of the load, and the operation efficiency is improved.
2. Compared with the traditional hydraulic loading system, the mechanism can realize the giving within the range of 0 KN-4.5 KN, meets the loading force requirement of the hydraulic control system, fills the technical problem of single type of the existing test equipment for the load simulation of the hydraulic control system, and provides a selection space.
3. Compared with the traditional hydraulic loading system, the mechanism has the advantages of simple structure, small volume, strong adaptability to test environment and high flexibility, and can be fixedly installed at any position according to operation requirements.
4. The device is influenced by the advantages of simple structure and few parts, and is convenient to clean after load simulation given operation is completed.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a load-simulating hydraulic actuating mechanism provided by the invention;
FIG. 2 is a schematic cross-sectional view of a transmission assembly in a load-simulating hydraulic actuator according to the present invention;
FIG. 3 is a schematic diagram of a cross-sectional structure of a swing assembly in a load-simulating hydraulic actuator according to the present invention;
wherein: 1. a load input device; 2. a hydraulic actuator; 201. a piston; 202. a first sealing rubber ring; 203. a bolt; 204. a spring washer; 205. an end cap; 206. the second sealing rubber ring; 207. an actuator cylinder; 208. a third sealing rubber ring; 209. a fourth sealing rubber ring; 210. a fifth sealing rubber ring; 211. a screw cap; 212. a sixth sealing rubber ring; 213. knurled nuts; 214. adjusting a screw; 215. a rotating shaft seat; 216. a poking head; 217. a swinging rod; 218. a rotating shaft; 219. and (5) sealing the cover.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, an embodiment of the present invention discloses a hydraulic actuating mechanism simulating a load, comprising: the hydraulic actuator 2 comprises an actuator cylinder 207, a transmission assembly and a sealing assembly are arranged in the actuator cylinder 207, the driving piece is fixedly connected with the transmission assembly through a speed reduction assembly, and a supporting assembly is arranged at the bottom of the transmission assembly; the controller is electrically connected with the driving piece, wherein the controller is used for presetting operation parameters, the driving piece drives the transmission assembly to rotate in the actuating cylinder 207 to form a hydraulic space according to the preset operation parameters, and the controller calculates and obtains the hydraulic pressure of the driving piece under the corresponding torque according to the area of the formed hydraulic space. In the operation process, the load input device 1 comprises a driving member, a controller and a speed reduction assembly, the supporting assembly is utilized to integrally install the mechanism at any position in an operation area, taking installation on a test stand support as an example, operation parameters are preset through the controller, the driving member starts driving a transmission assembly in the actuator cylinder 207 through the speed reduction assembly according to the preset operation parameters, hydraulic pressure under corresponding torque of the driving member is calculated under different operation parameters, and therefore simulation and given of load of the hydraulic control system are achieved.
Further, as shown in fig. 2 and 3, the transmission assembly includes a piston 201 and a rotating shaft 218, the piston 201 is installed in the actuator cylinder 207, the middle part of the piston 201 is provided with an annular groove, two ends of the piston 201 are connected with the inner wall of the actuator cylinder 207 through a sealing assembly, and the hydraulic space in the actuator cylinder 207 is sealed; the support assembly is installed in the bottom of axis of rotation 218, and the one end and the decelerator assembly fixed connection of axis of rotation 218, the outside spiro union in the middle part of the other end have the swing subassembly, and the swing subassembly cooperates with the ring channel to swing about the rotation of piston 201. Specifically, the seal assembly includes a first seal ring 202, a second seal ring 206, a third seal ring 208, a fourth seal ring 209, a fifth seal ring 210, and a sixth seal ring 212; the first sealing rubber ring 202 and the fifth sealing rubber ring 210 are arranged at two ends with a smaller diameter of the piston 201, the third sealing rubber ring 208 and the fourth sealing rubber ring 209 are arranged at two ends with a larger diameter of the piston 201, the hydraulic space in the actuator cylinder 207 is sealed, the area of the hydraulic space in the actuator cylinder 207 is actually the cross section area of the part with a larger diameter of the piston 201, and the hydraulic pressure under the corresponding torque of the driving piece can be obtained through calculating the cross section area of the piston 201; the support assembly comprises a rotating shaft seat 215 and a sealing cover 219, the rotating shaft seat 215 and the sealing cover 219 are in threaded connection, the rotating shaft seat 215 and the sealing cover 219 are also in threaded connection with the actuator cylinder 207 to support the actuator cylinder 207, the rotating shaft seat 215 and the sealing cover 219 are connected together through threads to form a rotating kinematic pair with a rotating shaft 218 respectively, the rotating kinematic pair is used as a support for an output section and an input end of an output actuator cylinder respectively, the rotating shaft 218 is supported together, and meanwhile, a sufficient swinging space is provided for a swinging rod 217; the speed reducing assembly comprises a speed reducer and a coupler, wherein the end part of a driving piece is connected with the speed reducer, the speed reducer is fixedly connected with a rotating shaft 218 through the coupler, an annular groove is formed in the middle of a thicker diameter part of a piston 201, the swing assembly can swing left and right through rotation of the piston 201, the swing assembly comprises a poking head 216 and a swing rod 217, one end of the swing rod 217 is in threaded connection with the poking head 216, the other end of the swing rod 217 is in threaded connection with the rotating shaft 218, one end of the swing rod 217 is provided with the poking head 216, the poking head 216 is matched with an annular groove of an actuator cylinder 207, the inner diameter of the annular groove is 10mm, an opening is formed in one side of the actuator cylinder 207 matched with the poking head 216, the opening is 90mm, the opening is used for collision with the outer side of the actuator cylinder 207 before the poking head 216 is separated from the annular groove, the poking head 216 is limited, the poking head 216 is prevented from being separated from the annular groove, the fact that the piston 201 is ensured to be processed under the condition of not deforming, and the distance of sliding up and down of the poking head 216 is ensured to be less than 12mm, so that the actuator cylinder 207 can be enabled to form a corresponding output angle to be ensured.
In addition, two ends of the actuator cylinder 207 are fixedly connected with an end cover 205 and a threaded cover 211 respectively, the end cover 205 and the threaded cover 211 are also connected with the actuator cylinder 207 through a sealing assembly, and the actuator cylinder 207 is further sealed through a second sealing rubber ring 206 and a sixth sealing rubber ring 212; a spring washer 204 is further installed between the end cover 205 and the actuator cylinder 207, and the end cover 205, the spring washer 204 and the end part of the actuator cylinder 207 are fixedly connected through a bolt 203, and the installation of the end cover 205 and the threaded cover 211 respectively limits the maximum position of the piston 201 moving leftwards and rightwards; one end of the piston 201 extends outwards through the end cover 205, the other end of the piston 201 is movably connected with the adjusting screw 214, the threaded cover 211 is in threaded connection with the outer side of the adjusting screw 214, the knurled nut 213 is positioned on the outer side of the actuating cylinder 207, the adjusting screw 214 is in threaded connection with the threaded cover 211, the movement stroke of the piston 201 can be adjusted and limited by inwards or outwards rotating, and the knurled nut 213 is screwed for locking.
In the embodiment, the driving piece is a motor, particularly an explosion-proof servo motor, and the explosion-proof servo motor is selected to replace a hydraulic loading system to be used as the input of a simulation load, so that the load simulation given adjustment response speed is faster, and meanwhile, the requirement of the explosion-proof working environment of the test bed is met.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hydraulic actuator for simulating a load, comprising: the hydraulic actuator comprises a driving piece, a controller and a hydraulic actuator (2), wherein the hydraulic actuator (2) comprises an actuator cylinder (207), a transmission assembly and a sealing assembly are arranged in the actuator cylinder (207), the driving piece is fixedly connected with the transmission assembly through a speed reduction assembly, and a supporting assembly is arranged at the bottom of the transmission assembly;
the controller is electrically connected with the driving piece, wherein the controller is used for presetting operation parameters, the driving piece drives the transmission assembly to rotate in the actuating cylinder (207) to form a hydraulic space according to the preset operation parameters, and the controller calculates and obtains hydraulic pressure of the driving piece under corresponding torque according to the area of the formed hydraulic space.
2. The hydraulic actuating mechanism according to claim 1, wherein the transmission assembly comprises a piston (201) and a rotating shaft (218), the piston (201) is installed in the actuating cylinder (207), an annular groove is formed in the middle of the piston (201), and two ends of the piston (201) are connected with the inner wall of the actuating cylinder (207) through a sealing assembly to seal a hydraulic space in the actuating cylinder (207);
the support assembly is mounted at the bottom of the rotating shaft (218), one end of the rotating shaft (218) is fixedly connected with the speed reducing assembly, the outer side of the middle of the other end of the rotating shaft is in threaded connection with the swinging assembly, and the swinging assembly is matched with the annular groove and swings left and right under the rotation of the piston (201).
3. The hydraulic actuating mechanism according to claim 2, wherein the swing assembly comprises a shifting head (216) and a swing rod (217), one end of the swing rod (217) is in threaded connection with the shifting head (216), the other end of the swing rod is in threaded connection with a rotating shaft (218), and one end of the swing rod (217) provided with the shifting head (216) is matched with an annular groove of the actuating cylinder (207).
4. A hydraulic actuating mechanism according to claim 3, wherein an opening is formed in the side of the actuating cylinder (207) matched with the shifting head (216), and the opening is used for collision with the outer side of the actuating cylinder (207) before the shifting head (216) is separated from the annular groove, so that the shifting head (216) is limited.
5. A hydraulic actuating mechanism according to claim 2 or 3, characterized in that said shifting head (216) is of cylindrical configuration.
6. The hydraulic actuating mechanism according to claim 2, wherein two ends of the actuating cylinder (207) are fixedly connected with an end cover (205) and a threaded cover (211) respectively, and the end cover (205) and the threaded cover (211) are also connected with the actuating cylinder (207) through a sealing component;
one end of the piston (201) penetrates through the end cover (205) to extend outwards, the other end of the piston is movably connected with the adjusting screw (214), and the threaded cover (211) is in threaded connection with the outer side of the adjusting screw (214).
7. The hydraulic actuating mechanism according to claim 6, characterized in that a knurled nut (213) is provided on the end of the adjusting screw (214) connected to the threaded cap (211), said knurled nut (213) being located outside the actuating cylinder (201).
8. The hydraulic actuation mechanism according to claim 2, characterized in that the support assembly comprises a pivot shaft seat (215) and a cover (219), the pivot shaft seat (215) and the cover (219) are in threaded connection, and the pivot shaft seat (215) and the cover (219) are also in threaded connection with the actuator cylinder (207) to support the actuator cylinder (207).
9. A hydraulic actuating mechanism according to any one of claims 2 to 4, wherein said annular groove has an internal diameter of 10mm.
10. The hydraulic actuation mechanism of claim 1, wherein the drive member is a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311590922.8A CN117366058A (en) | 2023-11-24 | 2023-11-24 | Hydraulic actuating mechanism for simulating load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311590922.8A CN117366058A (en) | 2023-11-24 | 2023-11-24 | Hydraulic actuating mechanism for simulating load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117366058A true CN117366058A (en) | 2024-01-09 |
Family
ID=89406117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311590922.8A Pending CN117366058A (en) | 2023-11-24 | 2023-11-24 | Hydraulic actuating mechanism for simulating load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117366058A (en) |
-
2023
- 2023-11-24 CN CN202311590922.8A patent/CN117366058A/en active Pending
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