Universal comprehensive adjuster for helicopter pull rod

Abstract

The utility model provides a general comprehensive adjustor for helicopter pull rods, which relates to the technical field of helicopters and comprises a guide block seat and a sliding guide block, a guide block groove is arranged on the guide block seat, the sliding guide block and the guide block groove are slidably mounted, a first screw is mounted at one end of the sliding guide block in a threaded manner, and a second screw is mounted at the other end of the sliding guide block. A second screw rod is mounted at one end of the guide block seat in a threaded manner; the first screw and the second screw are both provided with discs in a threaded mode. According to the angle of the connecting lugs at the upper ends of the pull rods, the discs can be rotated, the angle of the round rods can be changed, the positions of the sliding guide blocks in the guide block grooves can be movably adjusted according to the length needed by the pull rods, and the sliding guide blocks are fixed through the stop nails, so that the distance between the two discs is matched with the distance between the connecting lugs at the ends at the two ends of the pull rods; when a new pull rod is installed, the end connecting lugs at the two ends are respectively sleeved on the round rods on the discs at the two ends, so that whether the length of the pull rod meets the requirement or not can be conveniently and quickly measured, and the field emergency repair time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of helicopter, especially relates to a general adjuster of helicopter pull rod. BACKGROUND

[0002] The pull rod is widely used in the helicopter, such as the control cable system pull rod and the rotor cone pull rod, the control cable system pull rod is connected with the key components such as the hydraulic booster or rudder, automatic tilting device and the like, is used for realizing the accurate control to the flight attitude and direction of the helicopter, and the rotor cone pull rod is an important part for adjusting the balance of the rotor cone, the initial installation angle of the blade is adjusted by changing the length, thereby the blade cone taper is optimized, the rotor tip trajectory is ensured in the same plane, thereby the vibration of the helicopter is reduced.

[0003] The two ends of the pull rod are connected with the helicopter through the end head, although the pull rod and the end head are standard parts, there is certain manufacturing error in different batches of products, if the reassembly is carried out according to the mark made in advance, the length will be changed, the total stroke of the helicopter control cable system and the rotor cone are influenced, the distance between the center points of the two ends of the pull rod is not accurately measured by the existing measuring tool, and the length of the mounting part is also changed, the total stroke of the helicopter control cable system and the rotor cone are influenced, therefore, the utility model provides a general adjuster of helicopter pull rod to solve the problems in the prior art. SUMMARY

[0004] In view of the above problems, the utility model provides a general adjuster of helicopter pull rod, the length of the pull rod can be conveniently and quickly measured, the field repair time of the battle-damaged helicopter by the engineering maintenance technical personnel in the battlefield environment is shortened, the rapidity of replacement, the accuracy and consistency of the replacement part, the reliability of use, the balance of the rotor cone and the commissioning-free nature after replacement are ensured, and the flight control flexibility and safety after the helicopter maintenance and replacement are greatly improved and ensured.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a general adjuster of helicopter pull rod, including guide block seat and sliding guide block, the guide block seat is equipped with guide block groove, the sliding guide block is slidably installed with the guide block groove, the first screw rod is threadedly installed at one end of the sliding guide block, the second screw rod is threadedly installed at one end of the guide block seat;

[0006] The first screw rod and the second screw rod are both threadedly installed with the disc, the outer side of the disc is equipped with the round rod, each group of the round rod on the disc is equipped with at least three groups, and the diameters of the three groups of round rods are different, the guide block seat is equipped with the stop nail on one side, and the stop nail extends to the inside of the guide block groove.

[0007] Further improvement lies in that the three groups of the round rods are arranged at equal angles around the center of the disc, the outer side of the disc is provided with screw holes, the lower end of the round rod is provided with a screw head, and the screw head is matched with the screw hole.

[0008] Further improvement lies in that the outer side of the disc is provided with anti-skid lines, and the outer side of the round rod is a smooth surface.

[0009] Further improvement lies in that the sliding guide block is in T shape, and the guide block groove is in convex shape.

[0010] Further improvement lies in that the outer end of the first screw rod and the second screw rod is provided with a knob, and the knobs at two ends are integrally formed with the first screw rod and the second screw rod respectively.

[0011] Further improvement lies in that the stop nail is provided with at least two groups, and the stop nail is used for fixing the position of the sliding guide block.

[0012] Further improvement lies in that the distance between the two groups of the disc is matched with the distance between the end ear at two ends of the pull rod, and the round rod is matched with the inner opening of the end ear.

[0013] The beneficial effects of the utility model are:

[0014] 1. According to the angle of the end ear at the upper end of the pull rod, the disc can be rotated, the angle of the round rod can be changed, the position of the sliding guide block in the guide block groove is moved and adjusted according to the length required by the pull rod, and is fixed through the stop nail, so that the distance between the two groups of discs is matched with the distance between the end ear at two ends of the required pull rod, when a new pull rod is installed, the end ear at two ends is respectively sleeved on the round rod on the disc at two ends, so that whether the length of the pull rod meets the requirements is conveniently and quickly measured, the time of the engineering maintenance technical personnel in the field rescue of the battle-damaged helicopter under the battlefield environment is shortened, the rapidity of replacement, the accuracy and consistency of the replaced parts, the reliability of use and the balance of the rotor cone and the non-adjusting property after replacement are ensured, and the flight control flexibility and safety after helicopter maintenance and replacement are greatly improved and ensured.

[0015] 2. The disc is provided with at least three groups of round rods through the structure of the screw head and the screw hole, the diameters of the three groups of round rods are different, the end ear of different diameters is matched and inserted, and the universality is better. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is the bottom schematic view of the utility model;

[0018] Figure 3 It is the round rod schematic view of the utility model;

[0019] Figure 4 The drawing is a schematic view of a pull rod.

[0020] Wherein: 1, guide block seat; 2, sliding guide block; 3, guide block groove; 4, first screw rod; 5, second screw rod; 6, disc; 7, round rod; 8, stop pin; 9, screw head; 10, knob; 11, pull rod; 12, end lug. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the utility model, the utility model will be further described in combination with examples below, and the examples are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.

[0022] Example one

[0023] According to Figure 1 , 2 , 3, 4, the example proposes a general comprehensive adjuster for helicopter pull rod, which comprises a guide block seat 1 and a sliding guide block 2, the guide block seat 1 is provided with a guide block groove 3, the sliding guide block 2 is slidably installed with the guide block groove 3, one end of the sliding guide block 2 is threadedly installed with a first screw rod 4, one end of the guide block seat 1 is threadedly installed with a second screw rod 5.

[0024] The first screw rod 4 and the second screw rod 5 are both threadedly installed with a disc 6, the outer side of the disc 6 is provided with a round rod 7, each group of the round rod 7 on the disc 6 is provided with at least three groups, and the diameters of the three groups of the round rod 7 are different, one side of the guide block seat 1 is provided with a stop pin 8, and the stop pin 8 extends to the inside of the guide block groove 3. When in use, according to the angle of the end lug 12 on the upper end of the pull rod 11, the disc 6 can be rotated to change the angle of the round rod 7, according to the length required by the pull rod 11, the position of the sliding guide block 2 in the guide block groove 3 is moved and fixed through the stop pin 8, so that the distance between the two discs 6 is adapted to the distance between the two end lugs 12 on the upper end of the required pull rod 11, when installing a new pull rod, the end lugs 12 on the two ends are respectively sleeved on the round rods 7 on the discs 6 on the two ends, so that whether the length of the pull rod 11 meets the requirements is conveniently and quickly measured, and the field repair time of the engineering maintenance technical personnel on the battle-damaged helicopter in the battlefield environment is shortened. The front and rear ends of the disc 6 are fixed through the locking nuts matched with the first screw rod 4 and the second screw rod 5.

[0025] The outer side of the disc 6 is provided with anti-skid lines to facilitate rotation, and the outer side of the round rod 7 is a smooth surface without burrs to avoid damage to the end lug 12 when inserted.

[0026] The sliding guide block 2 is in T shape, and the guide block groove 3 is in convex shape. The position of the sliding guide block 2 in the guide block groove 3 is moved, the T shape and the convex shape are matched, and the sliding guide block 2 moves more stably.

[0027] The outer end of the first screw rod 4 and the second screw rod 5 is provided with a knob 10, and the knob 10 at both ends is integrally formed with the first screw rod 4 and the second screw rod 5 respectively. In use, the knob 10 is rotated, and the length of the first screw rod 4 and the second screw rod 5 on the sliding guide block 2 and the guide block seat 1 is adjusted by the threaded action, so that the distance between the two groups of discs 6 is accurately matched with the distance between the two end ears 12 at both ends of the required pull rod 11.

[0028] The stop nail 8 is provided with two groups, and is used to fix the position of the sliding guide block 2. In use, according to the angle of the end ear 12 at the upper end of the pull rod 11, the disc 6 can be rotated to change the angle of the round rod 7, and according to the required length of the pull rod 11, the position of the sliding guide block 2 in the guide block groove 3 is moved and adjusted, and is fixed by the stop nail 8, so that the distance between the two groups of discs 6 is matched with the distance between the two end ears 12 at both ends of the required pull rod 11.

[0029] The distance between the two groups of discs 6 is matched with the distance between the two end ears 12 at both ends of the pull rod 11, and the round rod 7 is matched with the inner opening of the end ear 12. When installing a new pull rod, the end ear 12 at both ends is respectively sleeved on the round rod 7 on the disc 6 at both ends, so that whether the length of the pull rod 11 meets the requirements is conveniently and quickly measured, and the field repair time of the battle-damaged helicopter by engineering and maintenance technicians in the battlefield environment is shortened.

[0030] Embodiment two

[0031] According to Figure 1 , 2 , 3, 4, the embodiment provides a general-purpose comprehensive adjuster for a helicopter pull rod, which comprises a guide block seat 1 and a sliding guide block 2, the guide block seat 1 is provided with a guide block groove 3, the sliding guide block 2 is slidably installed in the guide block groove 3, one end of the sliding guide block 2 is threadedly installed with a first screw rod 4, and one end of the guide block seat 1 is threadedly installed with a second screw rod 5;

[0032] The first screw rod 4 and the second screw rod 5 are both threaded with a disc 6, the outer side of the disc 6 is provided with a round rod 7, each group of the disc 6 is provided with at least three groups of the round rod 7, and the diameters of the three groups of the round rod 7 are different, one side of the guide block seat 1 is provided with a stop pin 8, and the stop pin 8 extends to the inside of the guide block groove 3. In use, according to the angle of the ear 12 on the upper end of the pull rod 11, the disc 6 can be rotated to change the angle of the round rod 7, according to the length required by the pull rod 11, the position of the sliding guide block 2 in the guide block groove 3 is moved and adjusted, and is fixed through the stop pin 8, so that the distance between the two groups of discs 6 adapts to the distance between the two ends of the ear 12 on the pull rod 11, when installing a new pull rod, the two ends of the ear 12 are respectively sleeved on the round rod 7 on the disc 6 at the two ends, so that whether the length of the pull rod 11 meets the requirements is conveniently and quickly measured, and the field repair time of the battle-damaged helicopter by engineering maintenance technicians in the battlefield environment is shortened.

[0033] The three groups of the round rod 7 are arranged at equal angles around the center of the disc 6, the outer side of the disc 6 is provided with a screw hole, the lower end of the round rod 7 is provided with a screw head 9, and the screw head 9 is matched with the screw hole. At least three groups of the round rod 7 are installed on the disc 6 through the structure of the screw head 9 and the screw hole, the diameters of the three groups of the round rod 7 are different, the ear 12 of different diameters is inserted, and the universality is better.

[0034] The distance between the two groups of the disc 6 is matched with the distance between the two ends of the ear 12 on the pull rod 11, and the round rod 7 is matched with the inner opening of the ear 12. When installing a new pull rod, the two ends of the ear 12 are respectively sleeved on the round rod 7 on the disc 6 at the two ends, so that whether the length of the pull rod 11 meets the requirements is conveniently and quickly measured, and the field repair time of the battle-damaged helicopter by engineering maintenance technicians in the battlefield environment is shortened.

[0035] The universal comprehensive adjuster of the helicopter pull rod can rotate the disc 6 according to the angle of the end ear 12 on the upper end of the pull rod 11, change the angle of the round rod 7, move the position of the adjusting sliding guide block 2 in the guide block groove 3 according to the required length of the pull rod 11, and fix it through the stop nail 8, so that the distance between the two groups of discs 6 adapts to the distance between the end ears 12 on the two ends of the required pull rod 11, when installing a new pull rod, the end ears 12 on the two ends are respectively sleeved on the round rods 7 on the discs 6 on the two ends, so that whether the length of the pull rod 11 meets the requirements is conveniently and quickly measured, the time of the engineering maintenance technical personnel in the field repair of the battle-damaged helicopter in the battlefield environment is shortened, the rapidity of replacement, the accuracy and consistency of the replaced parts, the reliability of use, the balance of the rotor cone and the non-adjustment after replacement are ensured, and the flight maneuvering flexibility and safety after the helicopter maintenance and replacement are greatly improved and ensured. And at least three groups of round rods 7 are installed on the disc 6 through the structure of the screw head 9 and the screw hole, the diameters of the three groups of round rods 7 are different, the end ears 12 with different diameters are inserted, and the universality is better.

[0036] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A universal integrated adjuster for the pull rod of a helicopter comprising a guide block seat (1) and a sliding guide block (2), characterized in that: The guide block seat (1) is provided with a guide block groove (3), the sliding guide block (2) is slidably installed in the guide block groove (3), one end of the sliding guide block (2) is threadedly installed with a first screw rod (4), and one end of the guide block seat (1) is threadedly installed with a second screw rod (5); The first screw rod (4) and the second screw rod (5) are both threadedly installed with a disc (6), the outer side of the disc (6) is provided with a round rod (7), each group of the round rods (7) on the disc (6) is provided with at least three groups, the diameters of the three groups of the round rods (7) are different, one side of the guide block seat (1) is provided with a stop pin (8), and the stop pin (8) extends into the inside of the guide block groove (3).

2. A universal collective pitch control for a helicopter stick according to claim 1, characterized in that: The three groups of the round rods (7) are arranged at equal angles around the center of the disc (6), the outer side of the disc (6) is provided with a threaded hole, the lower end of the round rod (7) is provided with a screw head (9), and the screw head (9) is matched with the threaded hole.

3. A universal pitch link adjuster for a helicopter as defined in claim 1, wherein: The outer side of the disc (6) is provided with an anti-skid line, and the outer side of the round rod (7) is a smooth surface.

4. A universal collective pitch control for a helicopter stick according to claim 1, wherein: The sliding guide block (2) is in a T shape, and the guide block groove (3) is in a convex shape.

5. A universal collective pitch control for a helicopter stick according to claim 1, wherein: The outer ends of the first screw rod (4) and the second screw rod (5) are both provided with knobs (10), and the knobs (10) at the two ends are integrally formed with the first screw rod (4) and the second screw rod (5) respectively.

6. A universal collective pitch control for a helicopter stick according to claim 1, wherein: The stop pin (8) is provided with at least two groups, and the stop pin (8) is used for fixing the position of the sliding guide block (2).

7. A universal collective pitch control for a helicopter stick according to claim 1, wherein: The distance between the two groups of the discs (6) is matched with the distance between the two end head lugs (12) on the pull rod (11), and the round rod (7) is matched with the inner opening of the head lug (12).

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