High-performance actuator

Abstract

The utility model relates to the technical field of actuators, and discloses a high-performance actuator which comprises a shell, a rear cover is fixedly installed at the rear end of the shell, a front cover is fixedly installed at the front end of the shell, a movable rod is arranged at the front end of the shell, one end of the movable rod penetrates through the front cover in a sliding mode and is located in the shell, and the other end of the movable rod penetrates through the front cover in a sliding mode. A movable rod is arranged in the shell, a driving mechanism acting on the movable rod is arranged in the shell, a cleaning mechanism acting on the movable rod is arranged at the front end of the front cover, and the cleaning mechanism comprises a first mounting plate, a second mounting plate and a dust scraping plate. Dust attached to the movable rod can be scraped off by the dust scraping plate, so that the dust is prevented from being accumulated at the opening of the front cover and further affecting stretching and retracting of the movable rod, the dust scraping plate has the advantage of being convenient to disassemble and assemble, a worker can disassemble and clean the dust scraping plate regularly, and therefore the situation that the service life of the hydraulic cylinder is affected due to frequent disassembly of the hydraulic cylinder is avoided.

Description

Technical Field

[0001] This utility model relates to the field of actuator technology, specifically a high-performance actuator. Background Technology

[0002] An actuator is a device that provides motion or power, converting one form of energy into another to achieve a specific mechanical movement or action. Common actuators include electric actuators, hydraulic actuators, and pneumatic actuators.

[0003] In hydraulic actuators, when the hydraulic cylinder's moving rod extends, an oil film adheres to its outer surface as it extends from the oil chamber. This makes the outer surface of the moving rod susceptible to attracting dust from the air. When the moving rod retracts, the dust is intercepted by the front housing of the hydraulic cylinder. The next extension of the moving rod carries away some dust, but inevitably some dust remains at the front of the hydraulic cylinder. With continuous use, a lot of grime accumulates at the front of the hydraulic cylinder. Once this grime dries, it not only easily scratches the outer surface of the moving rod but also creates resistance to its extension and retraction. Therefore, it is necessary for operators to disassemble the hydraulic cylinder regularly for cleaning. However, frequent disassembly not only affects the service life of the hydraulic cylinder but also makes disassembly and installation cumbersome. To address this, a high-performance actuator is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a high-performance actuator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-performance actuator, comprising a housing, a rear cover fixedly installed at the rear end of the housing, a front cover fixedly installed at the front end of the housing, a movable rod provided at the front end of the housing, one end of the movable rod slidingly penetrating through the front cover and located inside the housing, a driving mechanism acting on the movable rod provided inside the housing, a connector fixedly installed at the other end of the movable rod, and a cleaning mechanism acting on the movable rod provided at the front end of the front cover, the cleaning mechanism comprising a first mounting plate, a second mounting plate, and a scraper.

[0006] As a further preferred embodiment of this technical solution, both the first mounting plate and the second mounting plate are arc-shaped plates. The first mounting plate and the second mounting plate are fixedly connected to the front cover through a fixing mechanism. A scraper is fixedly installed on the inner arc sidewall of both the first mounting plate and the second mounting plate.

[0007] As a further preferred embodiment of this technical solution, the inner wall of the scraper blade slides and engages with the outer wall of the movable rod.

[0008] As a further preferred embodiment of this technical solution, the inner wall of the scraper and the outer wall of the movable rod are both polished.

[0009] As a further preferred embodiment of this technical solution, the fixing mechanism comprises a connecting ring, a fixing plate, and a limiting block. The connecting ring is fixedly connected to the center of the front end of the front cover. The inner diameter of the connecting ring is larger than the outer diameter of the movable rod. The inner diameters of the first mounting plate and the second mounting plate are equal to the outer diameter of the connecting ring. Limiting blocks are fixedly installed at the upper and lower ends of the connecting ring, respectively. Limiting grooves adapted to the limiting blocks are opened at both ends of the first mounting plate and the second mounting plate. Fixing plates are also fixedly connected to both ends of the first mounting plate and the second mounting plate. Three fixing holes are opened on the fixing plate. Three through-holes are opened on the side wall of the limiting block. The three through-holes correspond one-to-one with the three fixing holes.

[0010] As a further preferred embodiment of this technical solution, the driving mechanism includes a first oil hole, a second oil hole, and a sealing movable plug. The first oil hole and the second oil hole are fixedly installed on the outer wall of the housing, respectively. The first oil hole and the second oil hole are distributed on the front and rear sides of the outer wall of the housing. An oil cavity is opened inside the housing. The first oil hole and the second oil hole are in communication with the oil cavity. The end of the movable rod away from the connector is fixedly connected to the sealing movable plug. The sealing movable plug and the oil cavity slide and fit together. The outer wall of the sealing movable plug is sealed and adapted to the inner wall of the oil cavity. The sealing movable plug is located between the first oil hole and the second oil hole.

[0011] As a further preferred embodiment of this technical solution, an annular groove is provided on the inner wall of the front cover, and a sealing ring is provided in the annular groove.

[0012] This utility model provides a high-performance actuator with the following advantages:

[0013] This invention features a cleaning mechanism that scrapes off dust adhering to the movable rod when it retracts, preventing dust from accumulating at the opening of the front cover and affecting the extension and retraction of the movable rod. The scraper is easy to install and remove, allowing workers to regularly disassemble and clean it, thus avoiding frequent disassembly of the hydraulic cylinder and extending its service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model;

[0016] Figure 3 In this utility model Figure 2Partial structural diagram;

[0017] Figure 4 This is a schematic diagram of the cleaning mechanism and the fixing mechanism in this utility model;

[0018] Figure 5 This is a schematic diagram of the front cover structure in this utility model;

[0019] In the diagram: 1. Housing; 2. Movable rod; 3. Connector; 4. Oil hole No. 1; 5. Oil hole No. 2; 6. Oil cavity; 7. Sealing plug; 8. First mounting plate; 9. Second mounting plate; 10. Connecting ring; 11. Scraper; 12. Limiting groove; 13. Fixing plate; 14. Fixing hole; 15. Limiting block; 16. Sealing ring; 17. Mating hole; 18. Rear cover; 19. Front cover. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 5 As shown, in this embodiment, a high-performance actuator includes a housing 1. A rear cover 18 is fixedly installed at the rear end of the housing 1, and a front cover 19 is fixedly installed at the front end of the housing 1. A movable rod 2 is provided at the front end of the housing 1. One end of the movable rod 2 slides through the front cover 19 and is located inside the housing 1. A driving mechanism acting on the movable rod 2 is provided inside the housing 1. A connector 3 is fixedly installed at the other end of the movable rod 2. A cleaning mechanism acting on the movable rod 2 is provided at the front end of the front cover 19. The cleaning mechanism consists of a first mounting plate 8, a second mounting plate 9, and a scraper 11.

[0022] The first mounting plate 8 and the second mounting plate 9 are both arc-shaped plates. The first mounting plate 8 and the second mounting plate 9 are fixedly connected to the front cover 19 through a fixing mechanism. A scraper plate 11 is fixedly installed on the inner arc sidewall of the first mounting plate 8 and the second mounting plate 9.

[0023] The inner wall of the scraper blade 11 slides and engages with the outer wall of the movable rod 2, and both the inner wall of the scraper blade 11 and the outer wall of the movable rod 2 are polished.

[0024] With this configuration, the two scraper blades 11 can be fitted onto the outer surface of the movable rod 2 after being closed. As the movable rod 2 extends and retracts, the scraper blades 11 can intercept the dust adhering to the outer wall of the movable rod 2, preventing the dust from accumulating at the opening of the front cover 19. The dust on the scraper blades 11 can be removed by disassembling the fixing mechanism, thereby quickly cleaning the dust on the scraper blades 11.

[0025] The fixing mechanism comprises a connecting ring 10, a fixing plate 13, and a limiting block 15. The connecting ring 10 is fixedly connected to the center of the front end of the front cover 19. The inner diameter of the connecting ring 10 is larger than the outer diameter of the movable rod 2. The inner diameters of the first mounting plate 8 and the second mounting plate 9 are equal to the outer diameter of the connecting ring 10. Limiting blocks 15 are fixedly installed at the upper and lower ends of the connecting ring 10, respectively. Limiting grooves 12 adapted to the limiting blocks 15 are opened at both ends of the first mounting plate 8 and the second mounting plate 9. Fixing plates 13 are also fixedly connected at both ends of the first mounting plate 8 and the second mounting plate 9. Three fixing holes 14 are opened on the fixing plate 13. Three mating holes 17 penetrating the limiting block 15 are opened on the side wall of the limiting block 15. The three mating holes 17 correspond one-to-one with the three fixing holes 14.

[0026] In use, the first mounting plate 8 and the second mounting plate 9 are closed from both sides of the connecting ring 10. The limiting block 15 on the connecting ring 10 will be engaged in the limiting groove 12 on the first mounting plate 8 and the second mounting plate 9, thereby positioning the first mounting plate 8 and the second mounting plate 9. At this time, the fixing hole 14 on the fixing plate 13 will be aligned with the mating hole 17 on the limiting block 15. Then, the fixing screw is passed through the fixing hole 14 and the mating hole 17, and the nut is used to lock the screw at the end. The first mounting plate 8 and the second mounting plate 9 can then be fixed on the connecting ring 10. At this time, the scraper plate 11 on the first mounting plate 8 and the second mounting plate 9 will wrap around the outer surface of the movable rod 2 in a ring shape.

[0027] The drive mechanism includes an oil hole 4, an oil hole 5, and a sealing plug 7. The oil hole 4 and the oil hole 5 are fixedly installed on the outer wall of the housing 1. The oil hole 4 and the oil hole 5 are distributed on the front and rear sides of the outer wall of the housing 1. An oil cavity 6 is opened inside the housing 1. The oil hole 4 and the oil hole 5 are in communication with the oil cavity 6. The end of the movable rod 2 away from the connector 3 is fixedly connected to the sealing plug 7. The sealing plug 7 and the oil cavity 6 slide and fit together. The outer wall of the sealing plug 7 is sealed and adapted to the inner wall of the oil cavity 6. The sealing plug 7 is located between the oil hole 4 and the oil hole 5.

[0028] During operation, when the hydraulic oil enters the rodless chamber of the hydraulic cylinder through the first oil hole 4, the oil pressure acts on the sealing movable plug 7 due to the incompressibility of the liquid and its ability to transmit pressure evenly. This generates a force that pushes the sealing movable plug 7 to the right, causing the movable rod 2 to extend. The oil in the rod chamber then flows back to the oil tank through the second oil hole 5.

[0029] When the movable rod 2 needs to retract, the hydraulic system changes the direction of oil flow. The pressurized oil enters the rod chamber through the second oil hole 5 and acts on the sealing movable plug 7, generating a force that moves the sealing movable plug 7 to the left, pushing the movable rod 2 to retract. At this time, the oil in the rodless chamber flows back to the oil tank through the first oil hole 4.

[0030] The inner wall of the front cover 19 is provided with an annular groove, and a sealing ring 16 is provided in the annular groove.

[0031] The sealing ring 16 can seal the gap between the movable rod 2 and the front cover 19, preventing oil from flowing out of the oil chamber 6.

[0032] This utility model provides a high-performance actuator, the specific working principle of which is as follows:

[0033] In use, the movable rod 2 is controlled to extend and retract on the housing 1 by the drive mechanism. When the movable rod 2 retracts, the dust attached to the movable rod 2 will be scraped off by the scraper 11, thereby preventing dust from accumulating at the opening of the front cover 19 and affecting the extension and retraction of the movable rod 2. The scraper 11 is easy to disassemble and assemble, and the staff can disassemble and clean the scraper 11 regularly, thereby avoiding frequent disassembly of the hydraulic cylinder and affecting the service life of the hydraulic cylinder.

[0034] The hydraulic actuator in this application is model MTS-244.21. The power module (i.e., hydraulic pump) and control module (i.e., control valve) in the hydraulic system both use existing technology and have not been improved or shown here.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-performance actuator, comprising a housing (1), wherein a rear cover (18) is fixedly installed at the rear end of the housing (1), a front cover (19) is fixedly installed at the front end of the housing (1), a movable rod (2) is provided at the front end of the housing (1), one end of the movable rod (2) slides through the front cover (19) and is located inside the housing (1), a driving mechanism acting on the movable rod (2) is provided inside the housing (1), a connector (3) is fixedly installed at the other end of the movable rod (2), and a cleaning mechanism acting on the movable rod (2) is provided at the front end of the front cover (19), the cleaning mechanism comprising a first mounting plate (8), a second mounting plate (9) and a scraper (11).

2. The high-performance actuator according to claim 1, characterized in that: The first mounting plate (8) and the second mounting plate (9) are both arc-shaped plates. The first mounting plate (8) and the second mounting plate (9) are fixedly connected to the front cover (19) through a fixing mechanism. A scraper plate (11) is fixedly installed on the inner arc sidewall of the first mounting plate (8) and the second mounting plate (9).

3. The high-performance actuator according to claim 1, characterized in that: The inner wall of the scraper (11) slides and engages with the outer wall of the movable rod (2).

4. A high-performance actuator according to claim 1, characterized in that: The inner wall of the scraper (11) and the outer wall of the movable rod (2) are both polished.

5. A high-performance actuator according to claim 2, characterized in that: The fixing mechanism comprises a connecting ring (10), a fixing plate (13), and a limiting block (15). The connecting ring (10) is fixedly connected to the center of the front end of the front cover (19). The inner diameter of the connecting ring (10) is larger than the outer diameter of the movable rod (2). The inner diameters of the first mounting plate (8) and the second mounting plate (9) are equal to the outer diameter of the connecting ring (10). Limiting blocks (15) are fixedly installed at the upper and lower ends of the connecting ring (10). The first mounting plate (8) The first mounting plate (8) and the second mounting plate (9) are respectively provided with limiting grooves (12) adapted to the limiting block (15) at both ends. The first mounting plate (8) and the second mounting plate (9) are also respectively fixedly connected with fixing plates (13). The fixing plates (13) are provided with three fixing holes (14). The side wall of the limiting block (15) is provided with three mating holes (17) that penetrate the limiting block (15). The three mating holes (17) correspond one-to-one with the three fixing holes (14).

6. A high-performance actuator according to claim 1, characterized in that: The driving mechanism includes a first oil hole (4), a second oil hole (5), and a sealing movable plug (7). The first oil hole (4) and the second oil hole (5) are fixedly installed on the outer wall of the housing (1). The first oil hole (4) and the second oil hole (5) are distributed on the front and rear sides of the outer wall of the housing (1). An oil cavity (6) is opened inside the housing (1). The first oil hole (4) and the second oil hole (5) are in communication with the oil cavity (6). The end of the movable rod (2) away from the connector (3) is fixedly connected to the sealing movable plug (7). The sealing movable plug (7) and the oil cavity (6) slide and fit together. The outer wall of the sealing movable plug (7) is sealed and adapted to the inner wall of the oil cavity (6). The sealing movable plug (7) is located between the first oil hole (4) and the second oil hole (5).

7. A high-performance actuator according to claim 1, characterized in that: An annular groove is provided on the inner wall of the front cover (19), and a sealing ring (16) is provided in the annular groove.

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