Locking structure for all-electric retractable actuator cylinder

Abstract

The utility model discloses a locking structure for an all-electric retractable actuating cylinder, which comprises a storage cylinder, and an ejector rod is connected in the storage cylinder in a sliding manner; the device is characterized in that the bottom of the storage barrel is connected with a worm through a bearing, the left end of the worm is meshed with a worm gear, the worm gear rotates at the bottom end of the interior of the storage barrel, the middle of the worm gear is spirally connected with a limiting rod, the limiting rod slides in the storage barrel, a sliding block is fixed to the middle of the limiting rod, and the sliding block is fixed to the bottom of the storage barrel. And a sliding groove is formed in the storage barrel, and a sliding block is slidably connected into the sliding groove. According to the locking structure for the all-electric folding and unfolding actuating cylinder, the limiting rod is installed, the worm wheel is driven to rotate through rotation of the worm, then the worm wheel rotates to drive the limiting rod to move, the limiting rod moves to limit the ejector rod, and therefore the purpose of locking the ejector rod is achieved; and the maintenance safety can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to full electric retraction and extension actuating cylinder technical field, concretely is a locking structure for full electric retraction and extension actuating cylinder. BACKGROUND

[0002] During the process of airplane taking off and landing, full electric retraction and extension actuating cylinder is responsible for retracting and lowering landing gear, retracting landing gear can reduce flight resistance and improve flight efficiency, and lowering landing gear can ensure that the airplane can land stably and guarantee flight safety.

[0003] The existing full electric retraction and extension actuating cylinder needs to be maintained in long-term use, and the full electric retraction and extension actuating cylinder will be locked out of service during maintenance due to power failure, which makes maintenance difficult.

[0004] To solve the above defects, the utility model discloses a locking structure for full electric retraction and extension actuating cylinder, which locks the light rod of the actuating cylinder in the extreme position by installing the locking structure on the light rod of the actuating cylinder, locks the aileron state in the simplest and most effective way, does not increase the construction difficulty of maintenance personnel, reduces the physical exertion of maintenance personnel, and is more stable and reliable in locking the aileron state, and has high safety.

[0005] In the actual use of the above device, although the locking purpose is achieved by using the locking pin, when the angle of the aileron needs to be adjusted, the angle of the aileron needs to be adjusted, then the locking pin is inserted, and the locking pin is inserted to play a fixed role, and the sliding locking pin may be unstable during maintenance, which may cause the locking pin to fall off due to vibration, thereby causing an accident.

[0006] Therefore, we propose a locking structure for full electric retraction and extension actuating cylinder, which can well solve the above problems. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a locking structure for full electric retraction and extension actuating cylinder to solve the problem that the sliding locking pin plays a fixed role in the market at present, and the sliding locking pin may be unstable during maintenance, which may cause the locking pin to fall off due to vibration.

[0008] To achieve the above purpose, the utility model provides the following technical scheme: a locking structure for full electric retraction and extension actuating cylinder, which comprises a receiving cylinder, and a top rod is slidably connected inside the receiving cylinder.

[0009] Its characteristics are:

[0010] The bottom of the accommodating cylinder is connected with a worm through a bearing, the left end of the worm is engaged with a worm wheel, the worm wheel rotates at the bottom end inside the accommodating cylinder, the middle part of the worm wheel is connected with a limiting rod in a spiral manner, the limiting rod slides inside the accommodating cylinder, the middle part of the limiting rod is fixed with a sliding block, a sliding groove is arranged in the accommodating cylinder, and the sliding block slides inside the sliding groove.

[0011] Preferably, the middle part of the limiting rod is provided with threads, and the upper part of the limiting rod is provided with a smooth surface.

[0012] Preferably, the upper and lower ends of the worm wheel are connected with balls in an equal angle rotating manner, and the outer end of the ball is attached to the inside of the accommodating cylinder.

[0013] Preferably, the right end of the worm is provided with a cross opening, and the right end of the worm is provided with a smooth surface.

[0014] Preferably, the right end of the worm is connected with a positioning block in a sliding manner, and a limiting mechanism is formed between the positioning block and the worm.

[0015] Preferably, the left end of the positioning block extends into the inside of the clamping groove to form a clamping mechanism, and the clamping groove is arranged on the accommodating cylinder in an equal angle.

[0016] Preferably, the right end of the positioning block is connected with a spring, and the right end of the spring is connected to the inside of the worm.

[0017] Compared with the prior art, the locking structure for the full-electric receiving and releasing cylinder has high safety and good stability, the use of the limiting rod can improve the safety of the locking, and the use of the positioning block can achieve the fixing effect, thereby improving the stability, and the specific contents are as follows:

[0018] (1) The limiting rod is arranged, the worm is driven to rotate to drive the worm wheel to rotate, thereby driving the limiting rod to move, so that the limiting rod moves to limit the top rod, thereby achieving the purpose of locking the top rod, and the self-locking of the worm and the worm wheel can improve the safety of maintenance;

[0019] (2) The positioning block is arranged, the positioning block can move out of the inside of the clamping groove, thereby enabling the worm to normally rotate, so that the stability of the worm in use is improved;

[0020] (3) The ball is arranged, the upper and lower ends of the worm wheel are connected with the ball in an equal angle rotating manner, and the outer end of the ball is attached to the inside of the accommodating cylinder, thereby the ball can reduce the resistance of the worm wheel rotating, thereby improving the smoothness of the worm wheel rotating;

[0021] (4) The spring is arranged, the right end of the positioning block is connected with the spring, the right end of the spring is connected in the inside of the worm, and then the spring can limit the positioning block, so that the stability of the positioning block is improved.

[0022] (5) The worm is arranged, the right end of the worm is provided with a cross opening, and the right end of the worm is provided in a smooth surface, so that the worm can avoid the misoperation of personnel, and the safety of use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view structural schematic diagram of the utility model;

[0024] Figure 2 It is a storage cylinder front view structural schematic diagram of the utility model;

[0025] Figure 3 It is a storage cylinder front view structural schematic diagram of the utility model; Figure 1 It is an enlarged structural schematic diagram of A in the utility model;

[0026] Figure 4 It is a ball downward view structural schematic diagram of the utility model;

[0027] Figure 5 It is a positioning block side view structural schematic diagram of the utility model;

[0028] Figure 6 It is a clamping groove front view structural schematic diagram of the utility model.

[0029] In the drawing: 1, storage cylinder; 2, top rod; 3, worm; 4, worm wheel; 5, limiting rod; 6, ball; 7, sliding block; 8, sliding slot; 9, positioning block; 10, spring; 11, clamping groove. DETAILED DESCRIPTION

[0030] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Embodiment one: the utility model solves the problem that the existing locking pin is slidably inserted to play a fixing role, and the sliding locking pin may be unstable during maintenance, which may cause the locking pin to fall due to vibration. The use of the limiting rod 5 can improve the stability of the top rod 2, and discloses:

[0032] Storage tube 1, the interior of the storage tube 1 is slidably connected to a top rod 2; the bottom of the storage tube 1 is connected to a worm 3 through a bearing, and the left end of the worm 3 is engaged with a worm wheel 4, which rotates at the bottom end of the storage tube 1, and the middle part of the worm wheel 4 is worm-connected to a limit rod 5, and the limit rod 5 slides inside the storage tube 1, a slider 7 is fixed to the middle part of the limit rod 5, and a slide groove 8 is opened inside the storage tube 1, and the slide groove 8 is slidably connected to the slider 7;

[0033] refer to Figures 1 to 4 When maintenance is needed, by rotating the worm 3, the worm 3 is rotated to drive the worm wheel 4 to rotate, so that the rotation of the worm wheel 4 will drive the limit rod 5 to move, and the movement of the limit rod 5 will move up and down in the slide groove 8 through the slider 7, so that the limit rod 5 can only move up and down, and then the movement of the limit rod 5 will fit the bottom of the top rod 2, so that the limit rod 5 can limit the top rod 2, and the length can be adjusted according to different needs, and then the self-locking property between the worm 3 and the worm wheel 4 can make the position of the limit rod 5 stably fixed, thereby preventing the top rod 2 from moving toward the inside of the storage tube 1, thereby improving the safety of maintenance.

[0034] Embodiment 2: The present invention solves the problem that the worm wheel 4 in embodiment 1 rotates not smoothly enough. The use of balls 6 can improve the smoothness of rotation. The present invention discloses:

[0035] The limit rod 5 is provided with a thread below the middle part, and the limit rod 5 is provided with a smooth surface above the middle part. The upper and lower ends of the worm wheel 4 are connected with balls 6 for equal angle rotation, and the outer ends of the balls 6 are fitted into the interior of the storage tube 1. The right end of the worm 3 is provided with a cross opening, and the right end of the worm 3 is provided with a smooth surface.

[0036] refer to Figures 1 to 4 The rotation of the worm gear 4 can drive the ball 6 to rotate, and then the ball 6 can roll inside the storage tube 1, so that the ball 6 can reduce the resistance of the worm gear 4 to rotation in the storage tube 1, so that the worm gear 4 can rotate smoothly inside the storage tube 1, and by reversing the worm 3, the worm gear 4 can be reversed, so that the worm gear 4 can drive the limit rod 5 to reset, thereby improving the convenience of use.

[0037] Embodiment 3: The present invention solves the problem that the worm 3 in the embodiment 1 is not stable enough. The use of the positioning block 9 can improve the stability of the worm 3. The present invention discloses:

[0038] The right end of the worm 3 is slidingly connected with a positioning block 9, and a limiting mechanism is formed between the positioning block 9 and the worm 3, the left end of the positioning block 9 extends into the inside of the clamping groove 11 to form a clamping mechanism, and the clamping groove 11 is equally angularly arranged on the storage cylinder 1, the right end of the positioning block 9 is connected with a spring 10, and the right end of the spring 10 is connected in the inside of the worm 3;

[0039] Reference Figure 1 、 Figure 2 、 Figures 3 to 6 When it is needed to rotate the worm 3, the positioning block 9 is pulled, so that the positioning block 9 can slide on the worm 3, then the positioning block 9 is moved to press the spring 10, so that the spring 10 is forced to be compressed, and the positioning block 9 is moved to be disengaged from the clamping of the clamping groove 11, so that the worm 3 can be rotated, when it is needed to fix the worm 3, the positioning block 9 is extended into the inside of the clamping groove 11 by the force of the spring 10 to form clamping, so that the rotation of the worm 3 caused by vibration is avoided, and the stability is improved.

[0040] Working principle: when the locking structure for the full-electric receiving and releasing actuating cylinder is used, first, Figures 1 to 4 When it is needed to maintain, the worm 3 is rotated, so that the worm 3 is rotated to drive the worm wheel 4 to rotate, the limiting rod 5 is moved to move up and down in the sliding groove 8 through the sliding block 7, then the limiting rod 5 is moved to be attached to the bottom of the jacking rod 2, and the length can be adjusted according to different requirements, then the position of the limiting rod 5 can be stably fixed through the self-locking between the worm 3 and the worm wheel 4, so that the jacking rod 2 is prevented from moving into the inside of the storage cylinder 1, and the safety of maintenance is improved;

[0041] Reference Figures 1 to 4 The rotation of the worm wheel 4 can drive the ball 6 to rotate, so that the rotation of the ball 6 can roll in the inside of the storage cylinder 1, the worm wheel 4 can be smoothly rotated in the inside of the storage cylinder 1, and the worm wheel 4 can be reversed through the reverse rotation of the worm 3, so that the convenience of use is improved;

[0042] Reference Figure 1 、 Figure 2 、 Figures 3 to 6 When it is needed to rotate the worm 3, the positioning block 9 is pulled, so that the positioning block 9 can slide on the worm 3, then the positioning block 9 is moved to press the spring 10, and the positioning block 9 is moved to be disengaged from the clamping of the clamping groove 11, when it is needed to fix the worm 3, the positioning block 9 is extended into the inside of the clamping groove 11 by the force of the spring 10 to form clamping, so that the rotation of the worm 3 caused by vibration is avoided, and the stability is improved.

[0043] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0044] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A locking structure for a fully electric retractable actuator cylinder, comprising a receiving cylinder (1), wherein a push rod (2) is slidably connected to the interior of the receiving cylinder (1); Its characteristics are: The bottom of the storage cylinder (1) is connected to a worm (3) through a bearing, and the left end of the worm (3) is engaged with a worm wheel (4), the worm wheel (4) rotates at the bottom end inside the storage cylinder (1), and the middle part of the worm wheel (4) is spirally connected to a limit rod (5), and the limit rod (5) slides inside the storage cylinder (1), a slider (7) is fixed to the middle part of the limit rod (5), and a slide groove (8) is opened inside the storage cylinder (1), and the inside of the slide groove (8) is slidably connected to the slider (7).

2. The locking structure for a fully electric retractable actuator according to claim 1, characterized in that: The limiting rod (5) is provided with a thread below the middle portion, and the limiting rod (5) is provided with a smooth surface above the middle portion.

3. The locking structure for a fully electric retractable actuator according to claim 1, characterized in that: The upper and lower ends of the worm wheel (4) are connected to balls (6) in an equiangular rotation manner, and the outer ends of the balls (6) are fitted into the interior of the storage tube (1).

4. The locking structure for a fully electric retractable actuator according to claim 1, characterized in that: The right end of the worm (3) is provided with a cross opening, and the right end of the worm (3) is provided with a smooth surface.

5. The locking structure for a fully electric retractable actuator according to claim 1, characterized in that: The right end of the worm (3) is slidably connected to a positioning block (9), and a limiting mechanism is formed between the positioning block (9) and the worm (3).

6. The locking structure for a fully electric retractable actuator according to claim 5, characterized in that: The left end of the positioning block (9) extends into the interior of the card slot (11) to form a card engagement mechanism, and the card slot (11) is provided at equal angles on the storage tube (1).

7. The locking structure for a fully electric retractable actuator according to claim 6, characterized in that: The right end of the positioning block (9) is connected to a spring (10), and the right end of the spring (10) is connected to the inside of the worm (3).

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