SU1217774A1 - Remotely controlled camera crane - Google Patents

Description

one

The invention relates to lifting machines, in particular to camera operator cranes. ,

The purpose of the invention is to increase the sustainability of the movie camera and expand the creative possibilities of the operators.

FIG. 1 shows a crane, a general view; in FIG. 2, the size A-A in FIG. Ij in FIG. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a kinematic diagram of a counterweight movement assembly.

Link 1 and 2 of the fixed boom section (see Fig. 1) consist of two profiles 3, fastened with parts of profile 4 (see Fig. 3). Both links 1 and 2 are connected by clutch 5 with clips 6 (Fig. 1). In turn, the coupling 5 is fixed on the axis 7, which is installed in bearings 8 on the base 9y (see FIG. 2). Under, - the boom section 10 (Fig. 1) is installed in the carriages 11 on a non-adjustable link .1. The carriages 1 contain two pairs of bearings 12 mounted on axles 13 (FIG. 3). Inside the profile of the movable section 10 is established link 14, -. associated with section 10 of the hinge links 15, 16, image. with them and a parallelogram section (Fig. 1). The continuation of the link 14 is a gear rail 17, connected with the link 14 by the coupling 18 and the armor 19. The rail 17 is freely installed in the housing 20, which is mounted in the bearings 21 on the base 9, so that the center distance of the axes on the base is equal to the distance between the hinge axes on each of the links 15. and 16. The drive 22 of the extension of the movable section is fixed to the housing 20 by means of clamps 23 so that the drive gear 24 engages with the rail 17. The boom lift mechanism .25 is installed at the base 9 and associated with the axis 7 of the scenes 26 and locking axis 27. At the base 9, mounted on the platform of the car trunk 28, the boom turning mechanism 29 (Fig.) is attached. The cable 30 (Fig. 5) is wound on a drum 31 connected with gear 32-35 with a rack 17, Gear 34 and 35 mounted on the axis in the ball 2Г777Л2

lower levers 36 with the possibility of running around gears 33 mounted on axles 37.

In this case, the spring 38 carries out - 5 et clamp gear 35 to the rail I7. One branch of the cable 30 passes through the bypass blocks 39, 40 and 41 and is attached to the carriage 42 with counterweights mounted in the direction of

10 43 using two pairs of rollers 44. The other branch of the cable 30 is directly connected to the carriage 42. The panoramic head 45 with the movie camera 46 is mounted on the hinge link 15 of the movable boom section 10.

Crane works as follows. When the boom is tilted at a certain angle, the body 2.0 is clamped in

20, with the extension drive 22, the rail 17 tilts by the same angle. The parallelogram mechanism, composed of links 10, 14, 15, 16, maintains the parallel position of the hinge link 15 with a panoramic head 45 mounted on it with camera 46. The tilt angle of the boom of the crane with preservation of the star is 15 degrees depending on the size of the vertical section the internal cavity of the link 10, in which the link moves 14.When the actuator 22 is running, the 3J NIN rail 17 slides along the housing 20, the moving section 10 is driven by the cinema camera 46 mounted on it, while the gear 35 also included in the engagement with the rail 17 (the drum 31 is rotated, which moves the carriage 42 with the counterweights in the opposite direction along the guides 43. This maintains the balance of the boom relative to the fulcrum.

When the boom is tilted, the gear 34 with help; and the articulated arms 37 are wrapped around the gear 3,

The 50 axis of which is flush with the axis of the housing 20 relative to the horizontal axis, and the spring 38 presses the gear 35 to the rail when the mutual position of the rail and the link 2 on which gear 35 is mounted changes. This ensures that the gear 35 constantly engages with the rail 17,

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Claims (1)

. REMOTE CONTROLLED CINEMA-OPERATOR CRANE containing a boom of telescopically connected movable and fixed sections, the last of which is pivotally mounted on the base and connected to the mechanisms of its lifting and turning, and the first articulated link is mounted on the movable section to accommodate the film camera, the sliding section is driven kinematically connected with a suspension weight movably mounted on a fixed section, characterized in that, in order to increase the stability of the film camera and expand creative capabilities of operators, it is equipped with a second and third articulated links, forming a parallelogram-type articulated link mechanism with the first link and the movable section, and a gear rack is mounted on the link parallel to the movable section, interacting with the sliding section extension drive and mounted with the possibility of axial movement in the housing pivotally mounted on the base eccentrically relative to the axis of the hinge of fastening the fixed section on the base, and the drive is mounted on the housing eniya movable section.