CN217327915U - Large-torque hydraulic actuating mechanism - Google Patents
Large-torque hydraulic actuating mechanism Download PDFInfo
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- CN217327915U CN217327915U CN202220447001.0U CN202220447001U CN217327915U CN 217327915 U CN217327915 U CN 217327915U CN 202220447001 U CN202220447001 U CN 202220447001U CN 217327915 U CN217327915 U CN 217327915U
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- 230000007246 mechanism Effects 0.000 title claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 239000000463 material Substances 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
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
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Abstract
The utility model discloses a large-torque hydraulic actuator, which comprises a main cylinder body, wherein two ends of the main cylinder body are symmetrically and fixedly provided with first end covers; an output shaft extending out of the main cylinder body is arranged in the main cylinder body, and a first gear is fixedly sleeved on the output shaft in the main cylinder body; a second gear is meshed below the first gear; a horizontal rack is meshed below the second gear; both ends of the rack are fixedly connected with a main piston. The utility model discloses a hydraulic actuator simple structure, output torque is big, and adaptability is higher.
Description
Technical Field
The utility model relates to a hydraulic pressure execution equipment technical field especially relates to a big moment of torsion hydraulic pressure actuating mechanism.
Background
The actuator is an essential important component of an automatic control system. It is used to receive the control signal from the controller and change the size of the controlled medium to maintain the controlled variable at the required value or in certain range. The actuators can be classified into pneumatic, hydraulic and electric according to their energy forms. Compared with other types of actuators, the hydraulic actuator has the characteristic of large output torque, but sometimes the output torque of the hydraulic actuator still cannot meet the use requirement, so that a hydraulic actuator with large output torque is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a high-torque hydraulic actuator with a simple structure, a high output torque, and high adaptability.
The utility model provides a large-torque hydraulic actuating mechanism, which comprises a main cylinder body, wherein two ends of the main cylinder body are symmetrically and fixedly provided with first end covers; an output shaft extending out of the main cylinder body is arranged in the main cylinder body, and a first gear is fixedly sleeved on the output shaft in the main cylinder body; a second gear is meshed below the first gear, and the radius of the first gear is 1.5-2.5 times that of the second gear; a horizontal rack is meshed below the second gear; the two ends of the rack are fixedly connected with a main piston; a first limiting ring is fixedly arranged on the outer side of the main piston in the main cylinder body.
Furthermore, auxiliary cylinder bodies are symmetrically and fixedly arranged at two ends of the main cylinder body, a second end cover is fixedly arranged on one side, far away from the main cylinder body, of each auxiliary cylinder body, a power-assisted piston is arranged in each auxiliary cylinder body, a piston rod is fixedly connected to each power-assisted piston, each piston rod penetrates through the corresponding first end cover and is fixedly connected with the corresponding main piston, and a second limiting ring is arranged on one side, far away from the main cylinder body, of each power-assisted piston in each auxiliary cylinder body.
Further, the cross-sectional area of the auxiliary cylinder body perpendicular to the moving direction of the power piston is the same as the cross-sectional area of the main cylinder body perpendicular to the moving direction of the main piston.
Further, a first sealing ring is arranged between the main piston and the main cylinder body; a second sealing ring is arranged between the boosting piston and the auxiliary cylinder body; and a third sealing ring is arranged between the first end cover and the piston rod.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a hydraulic actuator is provided with first gear, second gear, rack and main piston, through main piston drive rack horizontal migration, the rack drives the output shaft through first gear and second gear and rotates, and the radius of first gear is the radial 1.5-2.5 times of second gear, very big increase the output torque of output shaft. The auxiliary cylinder body is arranged at the two ends of the main cylinder body in a matched mode, the driving force of the main piston is improved through the power-assisted piston and the piston rod, and the output torque of the output shaft is further improved. The hydraulic actuating mechanism can meet the use requirement of large output torque, and the application range of the hydraulic actuating mechanism is enlarged.
It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a schematic structural diagram of a high-torque hydraulic actuator.
Reference numbers in the figures: 1. a main cylinder body; 2. an auxiliary cylinder body;
11. a first end cap; 12. an output shaft; 13. a first gear; 14. a second gear; 15. a rack; 16. a primary piston; 17. a first limit ring; 18. a first seal ring;
21. a second end cap; 22. a booster piston; 23. a piston rod; 24. a second stop collar; 25. a second seal ring; 26. and a third sealing ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1, an embodiment of the present invention provides a large torque hydraulic actuator, which includes a main cylinder body 1, wherein first end caps 11 are symmetrically and fixedly disposed at two ends of the main cylinder body 1; an output shaft 12 extending out of the main cylinder body 1 is arranged in the main cylinder body 1, and a first gear 13 is fixedly sleeved on the output shaft 12 in the main cylinder body 1; a second gear 14 is meshed below the first gear 13, and the radius of the first gear 13 is 1.5-2.5 times that of the second gear 14; a horizontal rack 15 is meshed below the second gear 14; both ends of the rack 14 are fixedly connected with a main piston 16; a first limit ring 17 is fixedly arranged on the outer side of the main piston 16 in the main cylinder body 1.
In this embodiment, by controlling the hydraulic oil input at one side of the two sets of main pistons 16 and the hydraulic oil output at the other side, the two sets of main pistons 16 are driven to move synchronously, and the rack 15 is driven to move. The rack 15 drives the output shaft 12 to rotate through the second gear 14 and the first gear 13. The output torque of the output shaft 12 is increased by 1.5-2.5 times, the performance of the hydraulic actuating mechanism is improved, the use requirements under more working conditions can be met, and the use range of the hydraulic actuating mechanism is expanded.
The arrangement of the first limit ring 17 limits the moving stroke of the main piston 16, avoids the collision of the main piston 16 with the first gear 13 and the second gear 14, and ensures the structural safety of the hydraulic actuator.
In a preferred embodiment, as shown in fig. 1, the auxiliary cylinder 2 is symmetrically and fixedly disposed at two ends of the main cylinder 1, a second end cap 21 is fixedly disposed at one side of the auxiliary cylinder 2 away from the main cylinder 1, an assisting piston 22 is disposed in the auxiliary cylinder 2, a piston rod 23 is fixedly connected to the assisting piston 22, the piston rod 23 penetrates through the first end cap 11 and is fixedly connected with the corresponding main piston 16, and a second limit ring 24 is disposed at one side of the assisting piston 22 away from the main cylinder 1 in the auxiliary cylinder 2.
In the embodiment, the hydraulic oil is input to the outside of one group of the booster pistons 22, the hydraulic oil output to the outside of the other group of the booster pistons 22 is controlled to drive the two groups of the booster pistons 22 to move synchronously, and the booster pistons 22 increase the driving force of the main piston 16 through the piston rods 23, so that the output torque of the output shaft 12 is further increased.
In a preferred embodiment, as shown in fig. 1, the cross-sectional area of the secondary cylinder 2 perpendicular to the direction of movement of the booster piston 22 is the same as the cross-sectional area of the primary cylinder 1 perpendicular to the direction of movement of the primary piston 16. The boosting piston 22 and the main piston 16 can be driven synchronously under the condition of the same oil quantity and oil pressure, the size of an oil circuit in the auxiliary cylinder body 2 is consistent with that of the main cylinder body 1, and the manufacturing difficulty of the auxiliary cylinder body is reduced.
In a preferred embodiment, as shown in fig. 1, a first sealing ring 18 is arranged between the main piston 16 and the main cylinder 1; a second sealing ring 25 is arranged between the boosting piston 22 and the auxiliary cylinder body 2; a third sealing ring 26 is arranged between the first end cap 11 and the piston rod 23.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (4)
1. The large-torque hydraulic actuating mechanism is characterized by comprising a main cylinder body, wherein two ends of the main cylinder body are symmetrically and fixedly provided with first end covers; an output shaft extending out of the main cylinder body is arranged in the main cylinder body, and a first gear is fixedly sleeved on the output shaft in the main cylinder body; a second gear is meshed below the first gear, and the radius of the first gear is 1.5-2.5 times that of the second gear; a horizontal rack is meshed below the second gear; the two ends of the rack are fixedly connected with a main piston; a first limiting ring is fixedly arranged on the outer side of the main piston in the main cylinder body.
2. The high-torque hydraulic actuator according to claim 1, wherein the main cylinder body is symmetrically and fixedly provided with auxiliary cylinder bodies at two ends, a second end cover is fixedly arranged at one side of each auxiliary cylinder body far away from the main cylinder body, a booster piston is arranged in each auxiliary cylinder body, a piston rod is fixedly connected to each booster piston, each piston rod is fixedly connected with the corresponding main piston through the corresponding first end cover, and a second limit ring is arranged at one side of each auxiliary cylinder body far away from the main cylinder body and positioned in the booster piston.
3. A large torque hydraulic actuator according to claim 2, wherein the cross-sectional area of the sub-cylinder perpendicular to the direction of movement of the booster piston is the same as the cross-sectional area of the main cylinder perpendicular to the direction of movement of the main piston.
4. A high-torque hydraulic actuator according to claim 3, wherein a first seal ring is arranged between the main piston and the main cylinder; a second sealing ring is arranged between the boosting piston and the auxiliary cylinder body; and a third sealing ring is arranged between the first end cover and the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220447001.0U CN217327915U (en) | 2022-03-03 | 2022-03-03 | Large-torque hydraulic actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220447001.0U CN217327915U (en) | 2022-03-03 | 2022-03-03 | Large-torque hydraulic actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217327915U true CN217327915U (en) | 2022-08-30 |
Family
ID=82999367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220447001.0U Active CN217327915U (en) | 2022-03-03 | 2022-03-03 | Large-torque hydraulic actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217327915U (en) |
-
2022
- 2022-03-03 CN CN202220447001.0U patent/CN217327915U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240729 Address after: Building 4, No. 699 Lingzhan Road, Kunpeng Street, Wenzhou Marine Economy Development Demonstration Zone, Wenzhou City, Zhejiang Province 325026 Patentee after: WENZHOU DEKONG HANGLIAN TECHNOLOGY CO.,LTD. Country or region after: China Address before: Room 3022, 3rd Floor, Building 1, No. 26, Jinyuan Road, Daxing District, Beijing 102600 Patentee before: Beijing Dekong Hanglian Technology Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |