Composite enhanced actuator shell

By designing a composite reinforced actuator housing with a flip-top and slide structure and an automatic pressure relief mechanism, the problems of sealing failure and complex maintenance of existing actuator housings under high load operation are solved, realizing convenient maintenance and safe pressure relief.

CN224094085UActive Publication Date: 2026-04-07NANJING RUOLAI AEROSPACE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing actuator housings generate heat from internal components during high loads or prolonged operation, leading to gas expansion and increased pressure. The lack of an automatic pressure relief mechanism may result in seal failure or structural deformation. Furthermore, maintenance is complex and prone to damaging the connection structure.

Method used

A composite reinforced actuator housing was designed, which adopts a flip cover that is rotatably connected to the housing. The slide and plug structure enable convenient opening and closing. It is equipped with an air hole, connecting pipe and piston automatic pressure relief mechanism, and achieves sealing and convenient maintenance through plug and gear rack mechanism.

Benefits of technology

It enables convenient opening and closing of the actuator housing for inspection and maintenance, as well as automatic pressure relief, avoiding damage to the housing and improving the reliability and safety of the actuator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a composite enhanced actuator shell, which comprises a shell and a flip cover, the flip cover is rotatably connected with the shell, two groups of symmetrically distributed sliding frames are slidably mounted in the shell, insertion rods are fixedly mounted on the two groups of sliding frames, and the two groups of insertion rods are movably clamped with the flip cover respectively. The two sets of inserting rods are fixedly sleeved with check blocks, the two sets of inserting rods are movably sleeved with first springs, the two sets of sliding frames are fixedly provided with racks, a rotating rod is rotationally installed in the shell, the rotating rod is sleeved with a gear, and the rotating rod is located between the two sets of racks; the sliding frame drives the insertion rods to synchronously slide oppositely or reversely in the shell, opening and closing of the turning cover are achieved, then the shell of the actuator can be opened and closed according to actual maintenance requirements, and a worker can conveniently and directly maintain an actuating mechanism in the shell.
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Description

TECHNICAL FIELD

[0001] The utility model relates to actuator shell technical field, concretely is a kind of composite reinforced actuator shell. BACKGROUND

[0002] Actuator is the key component of active vibration control, and is an important link of active control system. Actuator is also called exciter, which is used for dynamic test and is the output device of dynamic test. Composite reinforced actuator shell is a high-performance actuator shell combining advanced composite materials and structural optimization design, which is mainly used in the fields of aerospace, robots, precision equipment and the like, and has the advantages of lightweight, high strength, corrosion resistance and fatigue resistance.

[0003] The existing shell is designed as a whole sealing type, and the shell needs to be completely disassembled when the internal actuating mechanism is overhauled or debugged. The operation is complex and the connecting structure is easy to be damaged. When the actuator is under high load or long-time operation, the internal components generate heat, causing the gas in the shell to expand and the pressure to rise. The existing shell lacks an automatic pressure relief mechanism and only relies on passive heat dissipation holes, which may cause sealing failure or structural deformation. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a composite reinforced actuator shell to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a composite reinforced actuator shell, comprising a shell and a flip cover, the flip cover is rotatably connected with the shell, two groups of symmetrically distributed slides are slidably installed in the shell, plug rods are fixedly installed on the two groups of slides, the two groups of plug rods are movably connected with the flip cover, stop blocks are fixedly sleeved on the two groups of plug rods, first springs are movably sleeved on the two groups of plug rods, the two ends of the first springs are fixedly connected with the stop blocks and the shell, racks are fixedly installed on the two groups of slides, the two groups of racks are slidably connected with the shell through sliding blocks, a rotating rod is rotatably installed in the shell, a gear is sleeved on the rotating rod, the rotating rod is located between the two groups of racks, the gear is meshingly connected with the two groups of racks, a gas hole is formed in the left side of the shell, an installation pipe is arranged on the left side of the shell, a connecting pipe is vertically installed on the installation pipe, and the connecting pipe is fixedly connected with the shell through the gas hole.

[0006] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed slide rods are fixedly installed in the shell, the two groups of sliding blocks are slidably sleeved on the corresponding slide rods, second springs are sleeved on the two groups of slide rods, and the two ends of the second springs are fixedly connected with the sliding blocks and the shell.

[0007] As a further preferred of the technical solution, the shell is rotatably installed with a lock cylinder, the lock cylinder is vertically distributed with the rotating rod, the rotating rod and the lock cylinder are both sleeved with a torsional spring, the two ends of the torsional spring are fixedly connected with the shell and the corresponding lock cylinder or rotating rod, the rotating rod is sleeved with a first bevel gear, the lock cylinder is sleeved with a second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the lock cylinder is provided with a lock slot, and a plurality of first lock blocks are slidably installed in the lock slot.

[0008] As a further preferred of the technical solution, the shell is rotatably installed with a lock cylinder, the lock cylinder is vertically distributed with the rotating rod, the rotating rod and the lock cylinder are both sleeved with a torsional spring, the two ends of the torsional spring are fixedly connected with the shell and the corresponding lock cylinder or rotating rod, the rotating rod is sleeved with a first bevel gear, the lock cylinder is sleeved with a second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the lock cylinder is provided with a lock slot, and a plurality of first lock blocks are slidably installed in the lock slot.

[0009] As a further preferred of the technical solution, the shell is rotatably installed with a lock cylinder, the lock cylinder is vertically distributed with the rotating rod, the rotating rod and the lock cylinder are both sleeved with a torsional spring, the two ends of the torsional spring are fixedly connected with the shell and the corresponding lock cylinder or rotating rod, the rotating rod is sleeved with a first bevel gear, the lock cylinder is sleeved with a second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the lock cylinder is provided with a lock slot, and a plurality of first lock blocks are slidably installed in the lock slot.

[0010] As a further preferred of the technical solution, the shell is rotatably installed with a lock cylinder, the lock cylinder is vertically distributed with the rotating rod, the rotating rod and the lock cylinder are both sleeved with a torsional spring, the two ends of the torsional spring are fixedly connected with the shell and the corresponding lock cylinder or rotating rod, the rotating rod is sleeved with a first bevel gear, the lock cylinder is sleeved with a second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the lock cylinder is provided with a lock slot, and a plurality of first lock blocks are slidably installed in the lock slot.

[0011] As a further preferred of the technical solution, the shell is rotatably installed with a lock cylinder, the lock cylinder is vertically distributed with the rotating rod, the rotating rod and the lock cylinder are both sleeved with a torsional spring, the two ends of the torsional spring are fixedly connected with the shell and the corresponding lock cylinder or rotating rod, the rotating rod is sleeved with a first bevel gear, the lock cylinder is sleeved with a second bevel gear, the second bevel gear is meshingly connected with the first bevel gear, the lock cylinder is provided with a lock slot, and a plurality of first lock blocks are slidably installed in the lock slot.

[0012] The utility model provides a kind of composite reinforced actuator shell, with the following beneficial effects:

[0013] (1) This utility model achieves the opening and closing of the flip cover by driving the insertion rod to slide synchronously relative to or in opposite directions in the housing through the set slide, thereby enabling the actuator housing to be opened and closed according to actual maintenance needs, making it convenient for staff to directly inspect the internal actuator mechanism. In addition, in the housing structure, a special key needs to be inserted into the lock cylinder to make the contact surface of the multiple sets of first lock blocks flush with the contact surface of the lock cylinder and the housing, so that the lock cylinder can be rotated to cooperate with the rotating rod, gear and rack to push the two sets of slide and insertion rod, making it impossible for non-staff to open the actuator. Moreover, the operation of staff does not require the use of additional tools, and the internal maintenance of the actuator is convenient.

[0014] (2) The present invention automatically releases pressure when the gas pressure inside the actuator increases due to the air hole, connecting pipe, mounting pipe, retaining ring and piston, so as to avoid damage to the actuator housing caused by excessive gas expansion. In addition, the position of the adjusting block can be adjusted under the action of the mounting rod, the first push rod and the second push rod in the mounting pipe, thereby adjusting the pre-compression of the fourth spring. The force required to open the piston can be adjusted according to the actual working environment of the actuator. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the separation of the shell and the carriage of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A;

[0018] Figure 4 For the present utility model Figure 2 Enlarged view of the structure at point -B;

[0019] In the diagram: 1. Housing; 2. Flip cover; 3. Mounting tube; 4. Slide; 5. Insert rod; 6. First spring; 7. Stop block; 8. Rack; 9. Slider; 10. Slide rod; 11. Second spring; 12. Rotating rod; 13. Gear; 14. Lock cylinder; 15. Torsion spring; 16. First bevel gear; 17. Second bevel gear; 18. Lock groove; 19. First locking block; 20. Slide groove; 21. Third spring; 22. Second locking block; 23. Air hole; 24. Connecting tube; 25. Bracket; 26. Piston; 27. Retaining ring; 28. Adjusting block; 29. ​​Fourth spring; 30. Mounting rod; 31. First push rod; 32. Second push rod; 33. Screw; 34. Keyway; 35. Screw tube; 36. Key block. 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 Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, a composite reinforced actuator housing includes a housing 1 and a flip cover 2. The flip cover 2 is rotatably connected to the housing 1. Two sets of symmetrically distributed slides 4 are slidably installed inside the housing 1. Insert rods 5 are fixedly installed on each set of slides 4, and the two sets of insert rods 5 are movably engaged with the flip cover 2. Stops 7 are fixedly sleeved on each set of insert rods 5, and first springs 6 are movably sleeved on each set of insert rods 5. The two ends of the first springs 6 are fixedly connected to the stop 7 and the housing 1, respectively. Racks 8 are fixedly installed on each set of slides 4, and the two sets of racks 8 are slidably connected to the housing 1 via sliders 9. A rotating rod 12 is rotatably installed inside the housing 1, and a gear 13 is sleeved on the rotating rod 12. The rotating rod 12 is located between the two sets of racks 8, and the gear 13 meshes with the two sets of racks 8. The housing 1 is connected in a series of interconnected parts. A vent 23 is located on the left side of the housing 1. An installation tube 3 is located on the left side of the housing 1, and a connecting tube 24 is vertically installed on the installation tube 3. The connecting tube 24 is fixedly connected to the housing 1 through the vent 23. Two sets of symmetrically distributed sliding rods 10 are fixedly installed inside the housing 1. Two sets of sliding blocks 9 are slidably engaged with their corresponding sliding rods 10. A second spring 11 is fitted onto each set of sliding rods 10, and both ends of the second spring 11 are fixedly connected to the sliding blocks 9 and the housing 1, respectively. A lock cylinder 14 is rotatably installed inside the housing 1. The lock cylinder 14 is perpendicular to the rotating rod 12. A torsion spring 15 is fitted onto both the rotating rod 12 and the lock cylinder 14, and both ends of the torsion spring 15 are fixedly connected to the housing 1 and the corresponding lock cylinder 14 or rotating rod 12, respectively. A first bevel gear 16 is fitted onto the rotating rod 12. A second bevel gear 17 is fitted onto the lock cylinder, meshing with a first bevel gear 16. A lock groove 18 is formed within the lock cylinder 14, and multiple sets of first lock blocks 19 are slidably installed within the lock groove 18. Multiple sliding grooves 20, corresponding to the first lock blocks 19, are formed within the housing 1. Second lock blocks 22 are slidably installed within the sliding grooves 20, corresponding to and magnetically engaging with the first lock blocks 19. A third spring 21 is provided within the sliding grooves 20, with its two ends fixedly connected to the second lock blocks 22 and the housing 1, respectively. A specific key is inserted into the lock groove 18 to engage the multiple sets of first lock blocks. When the key is pressed down, multiple sets of first locking blocks 19 are pressed to specific positions according to the shape of the key. After the connection between the multiple sets of first locking blocks 19 and the corresponding second locking blocks 22 and the interface between the lock cylinder 14 and the housing 1 are flush, the lock cylinder 14 can rotate under the drive of the key. In conjunction with the first bevel gear 16 and the second bevel gear 17, the rotating rod 12 drives the gear 13 to rotate. The two sets of racks 8 that mesh with the gear 13 drive the corresponding slide 4 and the insert rod 5 to slide synchronously to both sides, releasing the positioning of the flip cover 2. The flip cover 2 can rotate on the housing 1, exposing the actuating mechanism inside the housing 1, which is convenient for staff to carry out maintenance or replacement work.

[0022] like Figure 4As shown, a bracket 25 is fixedly installed inside the mounting tube 3, and a piston 26 is slidably installed on the bracket 25. A retaining ring 27 is fixedly installed inside the mounting tube 3, and the retaining ring 27 is movably engaged with the piston 26. A fourth spring 29 is slidably sleeved on the bracket 25, and an adjusting block 28 is slidably sleeved on the bracket 25. The two ends of the fourth spring 29 are fixedly connected to the retaining ring 27 and the adjusting block 28, respectively. An mounting rod 30 is fixedly installed inside the mounting tube 3, and a first push rod 31 is slidably installed inside the mounting rod 30. A second push rod 32 is slidably installed inside the mounting tube, and the end of the second push rod 32 away from the mounting rod 30 is fixedly connected to the adjusting block 28. A screw 33 is rotatably installed inside the mounting rod 30, and a screw tube 35 is rotatably installed inside the first push rod 31. The screw 33 passes through the first push rod 31 and is threadedly connected to the first push rod 31. The screw tube 35 passes through the second push rod 32 and is threadedly connected to the second push rod 32. Two sets of... The keyway 34 is distributed in a certain way. The screw tube 35 is provided with two sets of symmetrically distributed key blocks 36. The key blocks 36 are set in correspondence with the keyway 34. The screw tube 35 is slidably connected to the screw 33 through the key blocks 36. During the rotation of the screw 33 in the mounting rod 30, the first push rod 31 slides under the limiting action of the mounting rod 30, and drives the screw tube 35 to slide synchronously. Under the limiting action of the key blocks 36 and the keyway 34, the screw tube 35 also rotates synchronously with the screw 33 during the sliding process. Therefore, under the limiting action of the first push rod 31, the second push rod 32 drives the adjusting block 28 to slide on the bracket 25. The pre-compression of the fourth spring 29 on the bracket 25 is adjusted according to the actual use environment and needs of the actuator. After the gas in the housing 1 expands and the pressure increases, it enters the connecting pipe 24 through the air hole 23 and pushes open the piston 26 to complete the automatic pressure relief, so as to avoid the housing 1 being damaged due to excessive air pressure. After the pressure relief is completed, the piston 26 returns to the state of being locked with the retaining ring 27.

[0023] This utility model provides a composite reinforced actuator housing. The specific working principle is as follows: A specific key is inserted into the lock groove 18, pressing multiple sets of first locking blocks 19 downwards. According to the shape of the key, the multiple sets of first locking blocks 19 are pressed to specific positions. After the connection points of the multiple sets of first locking blocks 19 and the corresponding second locking blocks 22 are flush with the interface between the lock cylinder 14 and the housing 1, the lock cylinder 14 can rotate under the drive of the key. This, in conjunction with the first bevel gear 16 and the second bevel gear 17, causes the rotating rod 12 to drive the gear 13 to rotate. Two sets of racks 8 meshing with the gear 13 drive the corresponding slide 4 and the insert rod 5 to slide synchronously to both sides, releasing the positioning of the flip cover 2. The flip cover 2 can then rotate on the housing 1, exposing the actuating mechanism inside the housing 1, facilitating maintenance by personnel. During the change of operation, the first push rod 31 slides under the limiting action of the mounting rod 30, which in turn drives the screw tube 35 to slide synchronously. Under the limiting action of the key block 36 and the keyway 34, the screw tube 35 also rotates synchronously with the screw 33 during the sliding process. Therefore, under the limiting action of the first push rod 31, the second push rod 32 drives the adjusting block 28 to slide on the bracket 25. The pre-compression of the fourth spring 29 on the bracket 25 is adjusted according to the actual use environment and requirements of the actuator. After the gas in the housing 1 expands and the pressure increases, it enters the connecting pipe 24 through the air hole 23 and pushes open the piston 26 to complete the automatic pressure relief, so as to avoid the housing 1 being damaged due to excessive air pressure. After the pressure relief is completed, the piston 26 returns to the state of being engaged with the retaining ring 27.

[0024] 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 composite reinforced actuator housing, comprising a housing (1) and a flip cover (2), characterized in that: The flip cover (2) is rotatably connected to the housing (1). Two sets of symmetrically distributed slides (4) are slidably installed inside the housing (1). Each set of slides (4) is fixedly equipped with a rod (5). The two sets of rods (5) are movably engaged with the flip cover (2). Each set of rods (5) is fixedly fitted with a stop (7). Each set of rods (5) is movably fitted with a first spring (6). The two ends of the first spring (6) are fixedly connected to the stop (7) and the housing (1) respectively. Each set of slides (4) is fixedly equipped with a rack (8). All racks (8) are slidably connected to the housing (1) via sliders (9). A rotating rod (12) is rotatably installed inside the housing (1). A gear (13) is sleeved on the rotating rod (12). The rotating rod (12) is located between two sets of racks (8). The gear (13) meshes with the two sets of racks (8) respectively. An air hole (23) is opened on the left side of the housing (1). An installation tube (3) is provided on the left side of the housing (1). A connecting tube (24) is vertically installed on the installation tube (3). The connecting tube (24) is fixedly connected to the housing (1) through the air hole (23).

2. The composite reinforced actuator housing according to claim 1, characterized in that: Two sets of symmetrically distributed slide rods (10) are fixedly installed inside the housing (1). The two sets of sliders (9) are slidably connected to the corresponding slide rods (10). A second spring (11) is sleeved on each of the two sets of slide rods (10). The two ends of the second spring (11) are fixedly connected to the slider (9) and the housing (1) respectively.

3. The composite reinforced actuator housing according to claim 1, characterized in that: A lock cylinder (14) is rotatably installed inside the housing (1). The lock cylinder (14) and the rotating rod (12) are perpendicularly distributed. A torsion spring (15) is sleeved on both the rotating rod (12) and the lock cylinder (14). The two ends of the torsion spring (15) are fixedly connected to the housing (1) and the corresponding lock cylinder (14) or rotating rod (12), respectively. A first bevel gear (16) is sleeved on the rotating rod (12). A second bevel gear (17) is sleeved on the lock cylinder (14). The second bevel gear (17) meshes with the first bevel gear (16). A lock groove (18) is opened inside the lock cylinder (14). Multiple sets of first lock blocks (19) are slidably installed in the lock groove (18).

4. The composite reinforced actuator housing according to claim 1, characterized in that: The housing (1) has multiple sets of sliding grooves (20) corresponding to the first locking block (19). A second locking block (22) is slidably installed in the sliding groove (20). The second locking block (22) is corresponding to the first locking block (19) and magnetically attracted to the first locking block (19). A third spring (21) is provided in the sliding groove (20). The two ends of the third spring (21) are fixedly connected to the second locking block (22) and the housing (1) respectively.

5. The composite reinforced actuator housing according to claim 1, characterized in that: A bracket (25) is fixedly installed inside the mounting tube (3). A piston (26) is slidably installed on the bracket (25). A retaining ring (27) is fixedly installed inside the mounting tube (3). The retaining ring (27) is movably engaged with the piston (26). A fourth spring (29) is slidably sleeved on the bracket (25). An adjusting block (28) is slidably sleeved on the bracket (25). The two ends of the fourth spring (29) are fixedly connected to the retaining ring (27) and the adjusting block (28) respectively.

6. The composite reinforced actuator housing according to claim 1, characterized in that: An installation rod (30) is fixedly installed inside the installation tube (3). A first push rod (31) is slidably installed inside the installation rod (30). A second push rod (32) is slidably installed inside the installation tube. The end of the second push rod (32) away from the installation rod (30) is fixedly connected to the adjusting block (28).

7. The composite reinforced actuator housing according to claim 6, characterized in that: A screw (33) is rotatably installed inside the mounting rod (30), and a screw tube (35) is rotatably installed inside the first push rod (31). The screw (33) passes through the first push rod (31) and is threadedly connected to the first push rod (31). The screw tube (35) passes through the second push rod (32) and is threadedly connected to the second push rod (32). Two sets of symmetrically distributed keyways (34) are provided on the screw (33). Two sets of symmetrically distributed key blocks (36) are provided inside the screw tube (35). The key blocks (36) are correspondingly arranged with the keyways (34). The screw tube (35) is slidably sleeved with the screw (33) through the key blocks (36).