JPS63501233A - Equipment for load handling units - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Equipment for load handling units The invention can be used, for example, in excavator packets, wheel tractor packets, trucks and For equipment used in load transport units such as load transport forks and wheel tractors. related.

In conventional load transfer units of this type, improvements in maneuverability are often sought. For example, with respect to bucket 1 of an excavator, the packet may be moved in rotation relative to the jib. This means improved maneuverability. Regarding other cargo transport units, It is desired to improve the degree of freedom of movement, and it can be used to transport open containers upward. For example, a forklift truck can be used to easily remove the contents. However, the supporting lift fork shall be capable of turning or rotational movements. is required. Apart from changes in direction or rotational motion, pendulum movement relative to a rotating surface It is also desirable that the pendulum movement of the object to be removed be made easier during the removal operation. be released in a good way.

The excavator packet is rotated relative to the support jib, and the pendulum is oscillated relative to the rotating surface. Known devices for motion include Swedish Patent Publication No. 438, Examples include those disclosed in Japanese Patent No. 882. However, this conventional device Relatively limited rotational movements can be easily implemented, but may reduce the capacity of the packet. Therefore, there is a drawback that the support shaft used tends to wear out easily. It has cog teeth and can be attached to a rack. Attempts were made to attach the packet to an axle that would be steered by The force applied to the shaft resulted in the support shaft being deformed or destroyed. .

The purpose of the present invention is to The object of the present invention is to provide a device that realizes maximum exercise. Other purposes occur It can absorb vertical and lateral forces, making it easy to reduce play areas caused by wear, for example. An object of the present invention is to provide an improved support bearing shaft that is arranged so as to be aligned.

The device according to the invention can be positioned in an intermediate position between the load transport unit and its support member. rotational movement of the load transfer unit relative to the support member on the first side; Preferably, it is formed so as to cause a pendulum movement on the second surface which is an extension of the first surface. , its main feature is that the tubular or stud-like member can be redirected relative to the support member. or rotatably provided, with a load transfer unit suspended near the first end, and a load transfer unit suspended near the first end; The vicinity is preferably connected to a cylindrical disk-shaped member, and the surface facing the load transfer unit is A first contact plane is provided, a contact member is provided on the load transfer unit, and the contact member is attached to the cylindrical member. A second contact plane that faces and is approximately parallel to the first contact plane, and the first and second contact planes are Two groups of bearing means are arranged at intermediate positions of the planes, and one group of bearing means is arranged in the first contact plane. The other bearing means group has an adjustable contact position relative to the second contact plane. preferably counter-rotating movement of the cylindrical disc-shaped member; means are provided to enable the load transport unit to be oriented in a desired direction relative to the support member. The reason is that it enables conversion or rotational movement.

Refer to the attached drawings for an example in which the device according to the present invention is applied to a packet of an excavating machine. This will be explained in detail below.

Brief description of the drawing FIG. 1 schematically shows an embodiment of a device according to the invention for supporting packets on a jib; FIG.

2 is a side view of the apparatus shown in FIG. 1; FIG.

FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2.

FIG. 4 is a sectional view taken along the TV-rV line in FIG. 2.

FIG. 5 shows a bearing means modified from the bearing means shown in FIGS. 1 and 4, and Figure 3 is a perspective view of a wear member associated with modified bearing means in a separated position;

FIG. FIG. 6 is a sectional view of the means shown in FIG. 5;

In Figure 1, the jib 10 and packet 12 of the excavator are shown in chain lines, and the opening of the packet The mouth is facing to the left in the figure. According to the present invention as a finished product with reference numeral 14 The device can be easily mounted to the jib 10 in a conventional manner by means of a mounting member 16. The sea urchins are placed in

The mounting member 16 forms the first part of the device 14 and includes two pairs of shafts 20 that extend over each other. It includes a support member 18 of. The second portion of device 14 is spaced apart from shaft 20. It is composed of two plate-like members 22 which are pivotally attached to the. The plate-like member 22 is a plate-like member They are interconnected by a plate 24 extending transversely to 22. of the device 14 A housing of the second portion that extends from the plate 24 in a direction away from the support shaft 20. shall be.

The preferably hydraulic piston cylinder 26 is shown in more detail in FIG. As shown in FIG. The housing is arranged to extend between the second pivotable attachment points of the housing. Pistonshi By operating the cylinder 26, the second portion of the device 14 is moved relative to the first portion. When the packet is moved, it causes the packet to oscillate.

The device according to the invention also facilitates the rotational movement of the packet 12, How the rolling motion is achieved is illustrated in FIGS. 1 to 3. For this purpose, screw Ohm 28 is used. A fitting with fitting teeth arranged on the outer periphery that cooperate with the screw worm 28 Both gears 3o and the screw worm 28 are interconnected. Both fitting gears 3o are Attached to the first end of the stud-like member 34 with a screw or bolt component, the stud-like The other end of the member is connected to attachment means 36 of packet 12. stud-like member 34 is a peripheral tubular portion rigidly attached to the retractable second portion of device 14; It is arranged rotatably with respect to the material 34. The screw worm 28 is also used in the above-mentioned part of the device. It is rotatably supported in two parts, the second part being driven by a motor 40.

By driving the motor 40, the screw worm 28 rotates, and both teeth fit together. The wheel 30, stud-like member 34 and packet 12 are also rotated. motor 40 times By adjusting the speed and direction of rotation, the packets 12 can be rotated to a desired angle in alternating directions. The rotary movement can be performed in the desired direction and at the desired number of rotations. , and the rotational speed can also be changed as necessary.

A plurality of roller members are provided to absorb forces and loads generated during operation of the packet 12. 44 and 46 are the plate 48 of the attachment means 36 and the two fitting teeth facing the plate 48; It is placed in the middle position on the side of the car. In the embodiment shown in FIG. 4 in contact with the plate 48, and the four rollers 46 are fitted. It is placed in contact with the sides of both gears 30. The number of rollers may be changed, but the The number of rollers should not be less than three. On the other hand, the use of rollers 44, 46 in each group There is no problem even if the number exceeds 4, and the more the number, the more advantageous it becomes. Figure 1~ As shown in FIG. 4, the friction between the stud-like member 34 and the surrounding tubular member 38 is reduced. For the purpose of reducing the size, for example, a tubular bearing manufactured from bearing metal may be used in both of the above-mentioned members 34.38. It is convenient to have it in between.

between the roller 44 and the plate 48 and between the roller 46 and the cogwheel 30. In order to achieve a good and complete contact, adjustment means are used as shown in detail in FIG. 49 will be installed. The adjustment means 49 according to this embodiment are provided on the wall of the second part of the device 14. It is composed of a substantially triangular plate that is pivotally connected, and in this embodiment, it is shown in FIG. As shown in FIG. It is arranged. The shaft supporting the rollers 44.46 at the location of the adjustment means 49 It is positioned slightly out of phase with respect to the center of rotation of the wall member for the adjustment means. Ru. Therefore, an eccentric actuation is achieved during the pivot movement of the adjusting means 49, resulting in a lower The rollers 44, 46 are moved against the plate 48 or the cogwheels 3o. Appropriate Once the contact pressure is achieved, the adjusting means 49 allows the stud to be inserted into the appropriate hole 50. locked in position determined by Contact pressure is based on the type of work being performed selected. During the work, the rotational movement and pendulum movement of the packet 12 are controlled independently. It can be implemented by This is because the means to achieve both movements are individually This is because it is working. Furthermore, the jib 10 and the package are connected by the mounting member 16.36. A quick conventional attachment of the device 14 to the cut 12 is facilitated. device 14 considerably It can be made small and the space between the packet 12 and the jib 10 can be minimized. Also, device 1 There is no need to provide space for 4 in the packet. Worm gear 28.30 and rollers 44, 46 are enclosed in a housing and are well protected from chips and damage. It will be done. Eccentric actuation for aligning the rollers 44,46 allows the rollers to easily is adjusted to compensate for the play that exists and to absorb the forces applied to the device 14 during one operation. collected and dispersed over a wide area. The applied force is relatively large through the rollers 44, 46. The method of distributing the pressure over the absorbing surface is determined by the resistance of the device 14 to the forces present and the Produces good reliability during production. .

However, it is possible to adapt the embodiment shown and described above to suit other types of machines or load handling units. It can be modified in different ways or by taking into account various detailed design solutions. the As a modification, rollers 44, 46 may be included in other types of eccentrically actuated adjusting means:/$ In the free state, for example, when the axis of the roller 44, 46 is bored in one member of the cylindrical washer. The cylindrical washer is installed in a centrally located hole and rotated into the surrounding cylindrical recess. It can be arranged as possible. Also, the adjustment means 49 is locked at a desired position. The method can also be changed, e.g. using locking screws, clamp fittings, etc. be able to. Depending on the application, the pendulum movement in the description may not be that important. and, in that case, eliminate the members used to achieve such movements. rotate The method of achieving the movement can also vary, for example using a motor 40 and a screw worm. In place of 28, a piston ring operated by hydraulic or pneumatic pressure is fitted and connected to both gears 30. It can also be installed in a rack that is connected to the Can be rotated once to reduce the total weight of the device 14 It is advantageous to arrange the flexible stud-like member 34 as a tubular member.

Contact of a roller-like member 44, 46 with a cylindrical cross-section acting on an adjacent contact surface The area is small 6 Therefore, the roller-like member 44, 46 and the contact surface are both have fairly hard surfaces to avoid plastic deformation caused by existing contact loads. It is necessary to However, the contact surface of each roller-like member 44,46 is It can be expanded significantly by the modifications disclosed in FIGS.

According to this modification, each of the eccentrically supported bearing means shown in FIGS. arranged so as to correspond to the roller-like members 44, 46 described with respect to the embodiments described. - Contains a supported support 44. However, this support 44 A groove 52 is provided on the plane thereof, and the groove is the same as the through hole 53. The support shaft 54 is configured to extend in the direction, and the support shaft 54 can be inserted into the through hole. groove Also shown is a wear member 55 that fits into groove 52 and which, when inserted, fits into groove 52. It has an end face that can be held on the side. This wear member is as shown in FIG. , is retained in the groove by two screws 56° 56'.

The support body 44 is pivotally supported by an eccentric portion 57 of a support shaft 54, and the other end portion of the support shaft 54 is connected to the adjustment means 49 forming a plurality of holes 50 and as already described with respect to the first embodiment. As shown in FIG. It is used for locking by

This modified bearing means makes it possible to increase the contact area between the bearing means and the contact surface. can. The wear member 55 can be replaced when it wears out, so its use is not convenient. Good, but the contact surface is formed integrally with the support body 44 by eliminating the wear member 55 and the groove 52. You may also use That is, the plane 51 may be a continuous plane.

For removable wear member 55, at least two opposing ends of wear member 55 By utilizing the groove 52 formed to grip or surround the The forces exerted on the wear parts can be used in a better way. However, this groove It is also possible to exclude 52. However, in this case, the mode in which the above power can be used Then, it is necessary to attach the wear member 55. As an example of the aspect, the width of the support body 44 is A groove is formed on the surface of the wear member 55 having a larger width that abuts against the support body 44. Then, the sides of the groove formed in the wear member 55 surround the end of the support 44. Also good.

The invention is thus not limited to the embodiments shown and described, but rather Modifications may be made within the spirit and scope of the claims below.

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Claims (1)

[Claims] 1. A load transport unit (12) and a support member (10) for the load transport unit (12). ) and rotates on the load transfer unit (12) in the first plane. movement, more preferably pendulum movement in a second plane that is an extension of the first plane. A device (14) for a load transport unit (12) arranged in a tubular or star shape The rod-like member (34) is configured to be able to change direction or rotate relative to the support member (10). The load transfer unit (12) is hung near the first end, and the load transfer unit (12) is suspended near the second end. Preferably, it is connected to a cylindrical disk-shaped member (30) and faces the load conveyance unit (12). A contact member (48) is installed on the load conveyance unit (12), with the surface of the contact member (48) as the first contact plane. and a second contact surface that faces the cylindrical member (30) and is approximately parallel to the first contact plane. a plane, and two groups of bearing means (44, 46) at intermediate positions between the first and second contact planes. and one bearing means group (46) has an adjustable contact position with respect to the first contact plane. the other bearing means group (44) has an adjustable contact position relative to the second contact plane. the cylindrical disc-shaped member (30) preferably having counter-rotational movement; Means (40) for causing the load transport unit ( 12) can be changed direction or rotated in a desired direction. Equipment for load handling units. 2. Each group of bearing means (44, 46) is arranged radially, preferably substantially equiangularly. having at least three bearing means (44, 46) spaced apart; A device according to claim 1, characterized in that: 3. Each bearing means (44, 46) is composed of a roller-like member having a substantially cylindrical cross section. An apparatus according to any one of claims 1 to 2, characterized in that: 4. Each bearing means (44, 46) is arranged to contact an adjacent contact surface. Claims characterized in that it consists of a support (44) with a substantially flat bearing surface. The device according to items 1 to 3 above. 5. The wear member (55) is removably attached to the support (44), and the wear member (55) The surface facing away from the support body (44) is a substantially flat bearing surface and comes into contact with the adjacent contact surface. The device according to claim 4, characterized in that it is arranged as follows. 6. A longitudinal groove (52) is formed in the support (44) to reduce wear parts (55). Both are configured to grip or surround the two opposing ends, or a wear member is used. (55) to grip at least two opposing ends of the support (44). Claims 4 and 5 are characterized in that they are configured to surround the invention. The device described in. 7. The bearing means (44, 46) are mounted on a manually adjustable adjustment means (49), The stages apply an eccentric movement to each contact surface to the bearing means (44, 46). An apparatus according to any one of claims 1 to 6. 8. A locking or blocking means is provided on the manual adjustment means (49). The adjustment means (49) can be easily locked in a desired adjustment position. 8. The device according to claim 7, characterized in that: 9. The device (14) is pivotally connected to the support member (10) and has at least one piston cylinder. A cylinder (26), preferably hydraulically operated, is provided to pivot the device (14). This is different from the surface in which the load conveying unit (12) rotates or changes direction. acceleration of the pivot movement of the load transfer unit (12) attached to the device in the plane of Claims 1 to 8, characterized in that: equipment. 10. The preferably cylindrical disk-shaped member (30) has a cog (32) formed around its periphery. Any one of claims 1 to 9, characterized in that the invention is made of a cogwheel. The device described in any of the above. 11. Preferably, the cog teeth (32) formed around the periphery are of a model whose direction of rotation can be reversed. a screw worm (28) driven by a motor (40); 11. The device of claim 10. 12. The cogs (32) formed around the periphery of the piston system are hydraulically or pneumatically actuated. The patent claim is characterized in that it is interconnected to a rack which is preferably connected to a cylinder. The device according to claim 10. 13. The device (14) has a structure for facilitating attachment to the support member (10). a first part having attachment means (19) and attachment to the load transport unit (12); a second part having attachment means (36) to facilitate attachment; The device according to any one of claims 1 to 12. 14. In the first and second parts of the device (14), the load conveying unit (12) rotates or They are installed so that they pivot relative to each other in a plane that is different from the plane on which the direction change movement occurs. 14. The device according to claim 13, characterized in that: