CN104891331B - A kind of rotatable direction-changing type casing grab bucket - Google Patents

Abstract

The present invention relates to the grab bucket of a kind of rotatable direction-changing type casing, including fixed plate, four electric sliding rails, four grippers and rotating deviator, four described electric sliding rails lay respectively on four drift angle bisectors of fixed plate, four grippers are separately mounted to immediately below four electric sliding rails, rotating deviator is positioned at directly over fixed plate, rotating deviator includes lower rotary table, top rotary table, ball, reinforcement and electric rotating machine, top rotary table structure in the form of annular discs, annular groove is offered along its circumferencial direction on top rotary table bottom face, 36 balls are uniformly arranged in the annular groove on top rotary table bottom face along the central axis of top rotary table, electric rotating machine main shaft is connected with lower rotary table in the middle part of top rotary table, and electric rotating machine is fixed on top rotary table by motor cabinet.The present invention can realize rotating the function of break-in during capturing article, reaches the effect of 360 degree of regulations, facilitates the position adjustments that article lifting captures and places.

Description

A rotatable and direction-changing box grab

technical field

The invention relates to the field of grabbing equipment, in particular to a rotatable direction-changing box grab.

Background technique

The grab bucket is a bucket that can be opened and closed by grabbing sand, gravel and various bulk goods. It is a spreader that mainly relies on the opening and closing of two combined buckets on the left and right or multiple jaw plates to grab and discharge bulk materials. According to the classification of the shape, the grab can be divided into a shell-shaped grab and a orange-shaped grab. The former is composed of two complete buckets, and the latter is composed of three or more jaw plates; according to the driving method, it can be divided into hydraulic There are two types of grabs and mechanical grabs.

With the development of modern logistics, the transportation of goods is more and more developed. Now the goods are mostly loaded in boxes, and for large cargo equipment, they are loaded in containers. Therefore, in ports, transportation stations, and some free trade zones, containers are used. There are a lot of body handling every day. At present, manual handling is used for small box handling, forklifts are mostly used for large box handling, and grabs and cranes are used for container handling. There is no professional grab for the existing box handling and lifting. , the claw-type grab is commonly used. This kind of grab will cause great damage to the outside of the box, and sometimes even damage the items inside the box. It is carried out by a crane, which is very inconvenient when placing items. In view of this, the present invention provides a direction-adjustable box-specific grabbing device, that is, a rotatable and direction-changing box grab.

Contents of the invention

In order to solve the above problems, the present invention provides a rotatable and direction-changing box grab, which can realize the function of rotating and changing directions during the process of grabbing items, achieve the effect of 360-degree adjustment, and facilitate the lifting, grabbing and placing of items. position adjustment.

In order to achieve the above object, the present invention adopts the following technical solutions: a rotatable direction-changing box grab, including a fixed plate, four electric slide rails, four mechanical claws and a rotating direction-changing device, the fixed The plate has a square structure, and the four electric slide rails are respectively located on the four top angle bisectors of the fixed plate, and the electric slide rails are fixedly connected with the fixed plate; the four mechanical claws are respectively installed directly under the four electric slide rails , the mechanical claw includes a moving slider, an upper jacket, a lower jacket, a telescopic rod, an upper lug, a lower lug and a hydraulic cylinder; the moving slider is fixed at the top of the upper jacket, and the moving slider is provided with Install the ear holes; the bottom end of the upper jacket and the top end of the lower jacket are connected by telescopic rods; The upper sleeve is provided at the top corner of the bottom end of the upper jacket, and the inner diameter of the upper sleeve is slightly larger than the outer diameter of the telescopic rod; the lower jacket also has a triangular column structure, and the two side walls of the lower jacket are evenly opened There is a lower circular through hole, a lower sleeve is provided at the top corner of the lower jacket, and the inner diameter of the lower sleeve is slightly larger than the outer diameter of the telescopic rod, and the bottom of the lower jacket is provided with shovel ears, which are in a fan-shaped structure. The front port is provided with a slope; the upper ear seat is fixed on the outer wall of the bottom end of the upper jacket, and the lower ear seat is fixed on the outer wall of the top end of the lower jacket, and the upper ear seat and the lower ear seat are both Ω-shaped structures , the hydraulic cylinder is located between the upper ear seat and the lower ear seat, and the bottom end of the hydraulic cylinder is fixed to the upper ear seat, and the top end of the hydraulic cylinder is connected to the lower ear seat; the rotation direction changing device is located directly above the fixed plate; The rotation changing device includes a lower turntable, an upper turntable, balls, reinforcing ribs and a rotating motor; the upper turntable has a disc-shaped structure, and an annular groove is provided on the bottom end surface of the upper turntable along its circumferential direction; The number of balls and ribs are both thirty-six. Thirty-six balls are evenly installed in the annular groove on the bottom surface of the upper turntable along the central axis of the upper turntable. Thirty-six ribs are long strips. Six reinforcing ribs are also evenly fixed on the top surface of the upper turntable along the central axis of the upper turntable; the main shaft of the rotating motor passes through the middle of the upper turntable to connect with the lower turntable, and the rotating motor is fixed on the upper turntable through a motor seat.

As a further improvement of the present invention, the lower turntable also has a disc-shaped structure, and the diameter of the lower turntable is as large as that of the upper turntable. Thirty-six ball seat sleeves are evenly arranged on the top surface of the lower turntable along its circumferential direction.

When in use, first start the electric slide rail in the forward direction, and drive the four mechanical claws to extend outward at the same time through the electric slide rail; then start the hydraulic cylinder and the rotating motor in the forward direction, and drive the vertical downward movement of the lower jacket through the stretching of the hydraulic cylinder , and at the same time realize the rotation and direction-changing movement of the entire mechanical claw, so that the four mechanical claws just abut the four corners of the box. When the shovel ear at the bottom of the lower jacket reaches the bottom of the box, the electric slide rail and the Stop the rotating motor, drive the four mechanical claws to shrink inward at the same time through the electric slide rail, stop the electric slide rail when the inner wall of the upper jacket and the inner wall of the lower jacket contact the two outer walls at the corner of the box, and realize the control of the box. The four sides are fixed, and then the hydraulic cylinder is activated in the reverse direction. The contraction of the hydraulic cylinder drives the vertical upward movement of the lower jacket. Stop the hydraulic cylinder, so as to realize the fixing of the upper and lower ends of the box body, lift and transport the box body by lifting the fixed plate with a crane; finally start the rotating motor again, and drive the four mechanical claws to rotate through the rotation of the rotating motor, thereby Adjust the placement position and angle of the cabinet.

Beneficial effects of the present invention: a rotatable direction-changing box grab has the characteristics of compact structure, convenient operation and low production cost. Function, to achieve the effect of 360-degree adjustment, to facilitate the position adjustment of lifting, grabbing and placing of items.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the cooperation of the fixed plate, four electric slide rails and four mechanical claws of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of the mechanical claw of the present invention;

Fig. 4 is a schematic perspective view of the three-dimensional structure of the rotation and direction changing device of the present invention.

specific embodiment

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a rotatable direction-changing box grab includes a fixed plate 1, four electric slide rails 2, four mechanical claws 3 and a rotating direction-changing device 4 , the fixed plate 1 has a square structure, the four electric slide rails 2 are respectively located on the four corner bisectors of the fixed plate 1, and the electric slide rails 2 are fixedly connected with the fixed plate 1; the four mechanical claws 3 are respectively installed directly under the four electric slide rails 2, and the mechanical claw 3 includes a moving slider 31, an upper jacket 32, a lower jacket 33, a telescopic rod 34, an upper ear seat 35, a lower ear seat 36 and a hydraulic cylinder 37; The moving slider 31 is fixed at the top of the upper jacket 32, and the moving slider 31 is provided with mounting ear holes; the bottom of the upper jacket 32 and the top of the lower jacket 33 are connected by a telescopic rod 34; The upper jacket 32 has a triangular column structure, and upper circular through holes are evenly opened on both side walls of the upper jacket 32, and an upper sleeve is arranged at the top corner of the bottom end of the upper jacket 32, and the inner diameter of the upper sleeve is Slightly larger than the outer diameter of the telescopic rod 34; the lower jacket 33 is also in a triangular column structure, the two side walls of the lower jacket 33 are uniformly provided with a lower circular through hole, and the top corner of the lower jacket 33 is provided with a lower Sleeve, and the inner diameter of the lower sleeve is slightly larger than the outer diameter of the telescopic rod 34, and the bottom end of the lower jacket 33 is provided with a shovel ear, which is in a fan-shaped structure, and the front port of the shovel ear is provided with an inclination; the upper ear seat 35 It is fixed on the outer wall of the bottom end of the upper jacket 32, and the lower ear seat 36 is fixed on the outer wall of the top end of the lower jacket 33. The upper ear seat 35 and the lower ear seat 36 are both Ω-shaped structures, and the hydraulic cylinder 37 is located on the upper ear seat 35. and the lower ear seat 36, and the bottom end of the hydraulic cylinder 37 is fixed with the upper ear seat 35, and the top end of the hydraulic cylinder 37 is connected with the lower ear seat 36; the rotation changing device 4 is located directly above the fixed plate 1; The rotation changing device 4 includes a lower turntable 41, an upper turntable 42, a ball 43, a rib 44 and a rotating motor 45; There is an annular groove; the number of the balls 43 and the ribs is thirty-six, and the thirty-six balls 43 are evenly installed in the annular groove on the bottom end surface of the upper turntable 42 along the central axis of the upper turntable 42, three Sixteen reinforcing ribs 44 are elongated, and thirty-six reinforcing ribs 44 are also uniformly fixed on the top surface of the upper rotating disc 42 along the central axis of the upper rotating disc 42; The lower turntable 41 is connected, and the rotating motor 45 is fixed on the upper turntable 42 through the motor base.

As shown in Figure 4, the lower turntable 41 also has a disc-shaped structure, and the diameter of the lower turntable 41 is as large as that of the upper turntable 42. Thirty-six balls are evenly arranged on the top surface of the lower turntable 41 along its circumferential direction. seat cover.

When in use, first start the electric slide rail 2 in the forward direction, and drive the four mechanical claws 3 to stretch outwards at the same time through the electric slide rail 2; The vertical downward movement of the sleeve 33, and at the same time realize the rotation and direction-changing movement of the entire mechanical claw 3, so that the four mechanical claws 3 just abut against the four corners of the box, and the shovel ears at the bottom of the lower jacket 33 reach the bottom of the box. At this time, start the electric slide rail 2 in the reverse direction and stop the rotating motor 45, and drive the four mechanical claws 3 to shrink inwardly through the electric slide rail 2. Stop the electric slide rail 2 when the two outer sidewalls at the contact point, realize the fixation of the four sides of the box, and then start the hydraulic cylinder 37 in the reverse direction, and the contraction of the hydraulic cylinder 37 drives the vertical upward movement of the lower jacket 33, which acts as the upper jacket 32 top inner surface and lower jacket 33 bottom inner surface respectively stop the hydraulic cylinder 37 when contacting the upper and lower sides of the box body, so as to realize the fixing of the upper and lower ends of the box body, and lift the fixing plate 1 by a crane to realize the fixing of the box body Lifted and carried; Finally start the rotary motor 45 again, and the rotation of the rotary motor 45 drives the four mechanical claws 3 to rotate, thereby adjusting the placement position and angle of the casing.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the specification only illustrate the principles of the present invention, and without departing from the spirit and scope of the present invention, the present invention will also There are various changes and improvements which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (2)

1. a rotatable direction-changing type casing grab bucket, including fixed plate, four electric sliding rails, four grippers and rotation break-in dress Put, it is characterised in that: described fixed plate is square structure, and four drift angles that four electric sliding rails lay respectively at fixed plate are divided equally On line, and electric sliding rail is connected with fixed plate；Four described grippers are separately mounted to immediately below four electric sliding rails, machinery Pawl includes mobile slide block, upper chuck, lower chuck, expansion link, upper ear seat, lower ear base and hydraulic cylinder；Described mobile slide block is solid It is scheduled on chuck top end, mobile slide block offers installation earhole；Pass through between described upper chuck bottom and lower chuck top Expansion link is connected；Described upper chuck is triangular shape pillar construction, and upper chuck two side uniformly offers manhole, It is provided with upper bush at the drift angle of upper chuck bottom, and upper bush internal diameter is slightly larger than expansion link external diameter；Described lower chuck is also in triangle Shape pillar construction, lower chuck two side uniformly offers lower manhole, is provided with lower sleeve at the drift angle of lower chuck top, and Lower sleeve internal diameter is slightly larger than expansion link external diameter, and lower chuck bottom is provided with shovel ear, and shovel ear is sector structure, sets at shovel ear front port It is equipped with gradient；Described upper ear seat is fixed on the lateral wall of chuck bottom, and lower ear base is fixed on the outside on lower chuck top On wall, upper ear seat and lower ear base are Ω type structure, and hydraulic cylinder is between upper ear seat and lower ear base, and hydraulic cylinder bottom is with upper Ear mount fixes, and hydraulic cylinder top is connected with lower ear base；Described rotating deviator is positioned at directly over fixed plate；Described Rotating deviator includes lower rotary table, top rotary table, ball, reinforcement and electric rotating machine；Described top rotary table structure in the form of annular discs, Annular groove is offered along its circumferencial direction on top rotary table bottom face；Described ball and the quantity of reinforcement are 36, and three 16 balls are uniformly arranged in the annular groove on top rotary table bottom face along the central axis of top rotary table, 30 six roots of sensation reinforcements In strip, 30 six roots of sensation reinforcements are also uniformly fixed on top rotary table top end face along the central axis of top rotary table；Described rotation Electric machine main shaft is connected with lower rotary table in the middle part of top rotary table, and electric rotating machine is fixed on top rotary table by motor cabinet.

One the most according to claim 1 rotatable direction-changing type casing grab bucket, it is characterised in that: described lower rotary table also in Disc-shaped structure, and lower rotary table diameter is big with top rotary table diameter etc., and lower rotary table top end face is evenly arranged with three along its circumferencial direction 16 ball cover for seat.