JPH0538050U - Orange peel bucket - Google Patents

Abstract

(57) [Abstract] [Purpose] In the orange peel bucket, by newly devising a structure that pivotally supports the base of the peel, that is, a structure that supports the center pin, the number of peels can be increased while maintaining a high gripping force. An object of the present invention is to provide an orange peel bucket having a peel mounting structure which can be made of a single piece and is easy to assemble and disassemble and repair consumables. [Structure] Center pin receiving bosses 13, 13 are fitted to brackets 12, 12 of a lower sheave box 1 for rotatably connecting a base portion 2a of a peel 2, and the center pin 15 is attached to the center pin receiving bosses 13, 13. After inserting
After the bushes 14 and 14 are fitted to the center pin receiving bosses 13 and 13 so as to be crowned on both ends of the center pin 15, the retaining plates 16 are interposed between the adjacent bushes 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an orange peel bucket, and more particularly, to an improvement in a peel mounting structure for minimizing an effective diameter of a lower sheave box that pivotally mounts a base of a peel.

[0002]

[Prior Art]

 An orange peel bucket, which is suspended from a crane and used for dredging work, or for cargo handling work such as loading and unloading, is a bucket with an orange peeled shape, as the name implies. Normally, the bases of 6 peels (blades or claw blades) are respectively supported between a plurality of brackets protruding from the circumference of the box, and each peel is supported by each tie rod that is supported by the upper sheave box. These buckets are connected to each other, and the peel is opened when the space between the upper sheave box and the lower sheave box is expanded, and the peel is closed when the space is reduced.

The gripping force of the peel of the orange peel bucket becomes stronger as the ratio of the effective diameter of the lower sheave box to the diameter of the bearing point of the tie rod when the peel is closed is increased.

On the other hand, in order to increase the amount of grip and shorten the cargo handling time, there is an increasing demand for those having 8 peels instead of 6 peels. In other words, by increasing the number of peels and narrowing the width, the gripping resistance can be reduced, and the work capacity and efficiency in the loading and unloading of medium and small stones and earth and sand can be improved.

[0005]

[Problems to be solved by the device]

 However, if the number of peels is increased, the pivot structure becomes complicated and troublesome. That is, when the number of peels is increased from 6 to 8 in general, if the upper ends of the 8 peels are arranged in the same row at the center of the outer periphery of the bracket of the lower sheave box, the upper ends of the peels will be Since eight pieces are lined up in the same row on the outer circumference of the supporting bracket, the center pin receiving boss is too narrow to insert the center pin into the center pin receiving boss, or the center pin receiving boss is too small, resulting in insufficient surface pressure. Assembling and disassembling requires time, and the outer center diameter of the lower sheave box where the brackets are projected must be increased in order to space the brackets for inserting the center pin. It causes problems such as a decrease.

Further, since the orange peel bucket is operated under severe conditions, the number of repairs such as wear, wear, and damage of each part is large, and it is strongly possible to disassemble, assemble, and replace parts easily and quickly. Is required.

In view of this, the present invention newly devises a structure for pivotally supporting the base of the peel, that is, a structure for supporting the center pin, so that the number of peels is eight while keeping the gripping force high. It is possible to provide a pillar mounting structure that allows for easy workability and easy assembly, disassembly and repair of consumables.

[0008]

[Means for Solving the Problems]

 The peel mounting structure of the orange peel bucket according to the present invention is such that the center pin receiving boss is mounted on the bracket of the lower sheave box, the base of the peel is inserted between the brackets, and the center pin is mounted between the center pin receiving boss and the base of the peel. It is characterized in that it is fitted into the center pin receiving boss so that both ends of the center pin are fitted with bushes.

Further, the center pin receiving boss is attached to the bracket of the lower sheave box, the base portion of the peel is inserted between the brackets, and the center pin receiving boss and the base portion of the peel are provided with a center pin having a dimension shorter than the distance between the brackets. It is characterized in that it is fitted into the center pin receiving boss so that both ends of the center pin are fitted with bushes.

The bush is a bottomed cylindrical body having a stopper with which the end of the center pin abuts and an oil reservoir groove, and can be fitted into the center pin receiving boss. It is characterized in that it projects from the boss and its outer peripheral portion is welded to the center pin receiving boss, and both end portions of the retaining plate interposed between the pair of adjacent brackets are respectively brought into contact with the bush, In addition, the upper and lower ends are welded and fixed to the lower sheave box.

[0011]

[Action]

 The diameter of the center pin that penetrates the base of the peel is smaller than the diameter of the center pin receiving boss fixed to the bracket, and the bush is interposed between the center pin receiving boss and the center pin receiving boss, so the gap is narrow. The center pin can be inserted between the brackets, and the assembling work for supporting the center pin receiving boss can be facilitated. On the contrary, the disassembling work can be performed simply, quickly and easily. That is, after inserting the center pin into the bracket and the base of the peel, the bushes of the bottomed cylinder are attached from both sides, so that the length of the center pin to be used can be shortened and the distance between the pair of adjacent brackets can be reduced. Since the center pin can be inserted even if it is narrow, the effective diameter of the lower sheave box can be made the same as when using 6 peels when mounting 8 peels. Therefore, the gripping amount can be increased and the cargo handling time can be shortened without reducing the gripping force.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an orange peel bucket, and FIG. 2 is a plan view thereof, in which 1 is a lower sheave box, 2 is a peel, 3 is a tie rod, and 4 is an upper sheave box. The peel 2 is rotatably connected to the lower sheave box 1 via a pivot 5, the lower end of the tie rod 3 is rotatably connected to the peel 2 by a shaft 6, and the upper end thereof is an upper sheave box. A shaft 7 is rotatably connected to the shaft 4.

A suspension ring 8 and a guide roller 9 are attached to the upper sheave box 4, and an upper sheave 10 is rotatably supported and fixed. A lower sheave 11 is rotatably supported on the lower sheave box 1. A wire rope (not shown) is hung around the upper sheave 10 and the lower sheave 11, and the operation shortens or extends the distance between the upper sheave box 4 and the lower sheave box 1 so that the peel 2 can be opened and closed. Has become.

As shown in FIG. 3, the pivot portion 5 of the peel 2 is fixed by welding center pin receiving bosses 13 and 13 to brackets 12 and 12 which are radially projected on the outer peripheral portion of the lower sheave box 1. Then, the center pin 15 is inserted into the bosses 13 and the center hole 2b formed in the base 2a of the peel 2, and the bushes 14 and 14 are fitted to both ends of the center pin 15 and adjacent to each other. The retaining plate 16 is connected to the bush 14 of the other bracket 12a so as to be interposed therebetween.

The center pin 15 has a dimension slightly shorter than the distance between the brackets 12 and 12, but both ends thereof are long enough to be located in the center pin receiving bosses 13 and 13. Further, the diameter of the center pin 15 is slightly smaller than the center hole 2b formed in the base portion 2a of the peel 2, but the inner diameter of the center pin receiving boss 13 is larger. That is, the center pin receiving boss 13 has a margin for fitting the bush 14.

As shown in FIG. 4, the bush 14 is composed of a bottomed cylindrical body having a hole 17 for forming a stopper 16 for preventing the end portion of the center pin 15 from coming off. The reservoir groove 18 is formed in the circumferential direction. The bush 14 has such a length that it can be crowned on the end of the center pin 15 and protrude from the center pin receiving bosses 13, 13.

Therefore, the assembling process of the above configuration will be described. The lower sheave box 1 is fixed on a table, the peel 2 is lifted by a crane, and the base portion 2a of the peel 2 is preliminarily set to the center as shown in FIG. The pin receiving bosses 13, 13 are inserted between the fitted brackets 12, 12 so that the center hole 2b formed in the base portion 2a and the center pin receiving bosses 13, 13 are aligned. Next, the center pin 15 is inserted into the center hole 2b from the center pin receiving boss 13 in a state in which the center pin 15 is inclined from between the brackets 12 and 12a.

Then, as shown in FIG. 6, the center pin 15 is stopped at a position centered between the brackets 12 and 12, and the gaps between the center pin 15 and the center pin receiving boss 13 are adjusted to be uniform. , The bushes 14, 14 are respectively inserted. Attach 8 peels 2 in this way.

Finally, as shown in FIG. 7, the outside of the center pin receiving boss 13 and the bush 14 protruding from the boss 13 are fixed by welding. In this welding, the interval between the brackets 12 and 12a is narrow, and the entire circumference cannot be welded. Then, the retaining plate 16 is interposed between the bush 14 and the bush 14 of the bracket 12a adjacent to the bush 14 so as to be in contact with the entire circumference of the eight places, and as shown in FIG. Each is welded and fixed to the upper flange 1a and the lower flange 1b of the lower sheave box 1.

In repairing, the retaining plate 16 is removed from the lower sheave box 1 by flowing welding of the upper end and lower end thereof and the bush 14 with gas, and further on the outside of the center pin receiving bosses 13, 13. Weld the bushes 14 and the bushes 14 and 14 with a gas, and disassemble in the reverse order of the above.

[0021]

[Effect of the device]

 As described above, according to the present invention, since the bushes are attached from both sides after inserting the center pin into the base of the bracket and the peel, the length of the center pin to be used can be shortened and the pair of adjacent brackets can be shortened. Since the center pin can be inserted even if the space between the two is small, the effective diameter of the lower sheave box can be the same as when mounting the eight peels, as in the case of six peels. In other words, the diameter of the central portion of the outer periphery of the lower sheave box can be minimized, and the lever ratio for peeling can be made approximately the same as for 6-piece peel. Therefore, the gripping amount can be increased and the cargo handling time can be shortened without reducing the gripping force.

Further, if the center pin receiving boss welded to the bracket is left as it is and the welding on one side of the bush inside and the upper and lower sides of the retaining plate is made to flow by gas, disassembling work between narrow brackets can be facilitated. .

Therefore, since the orange peel bucket operates under severe conditions, the number of repairs such as wear, wear, and damage of each part is large, and disassembly, assembly, and parts replacement can be performed easily, quickly, and easily. Is the advantage that there is less.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a cross-sectional plan view of a main part of the present invention.

FIG. 4 is an enlarged sectional plan view of a part of FIG.

FIG. 5 is an operation explanatory view.

FIG. 6 is an operation explanatory view.

FIG. 7 is an operation explanatory view.

[Explanation of symbols]

 1 ... Lower sheave box 2 ... Peel 3 ... Tie rod 4 ... Upper sheave box 5 ... Axis part 12 ... Bracket 13 ... Center pin receiving boss 14 ... Bushing 15 ... Center pin 16 ... Preventing plate 18 ... Oil sump groove

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[Procedure amendment]

[Submission date] April 28, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 6

[Correction method] Change

[Correction content]

Claims (6)

[Scope of utility model registration request] 1. In a peel mounting structure for an orange peel bucket, a center pin receiving boss is attached to a bracket of a lower sheave box, a base of the peel is inserted between the brackets, and a center pin is loosely attached to the center pin receiving boss and the base of the peel. The orange peel bucket is characterized in that it is fitted into the center pin receiving boss so that both ends of the center pin are fitted with bushes. 2. In a peel mounting structure for an orange peel bucket, a center pin receiving boss is attached to a bracket of a lower sheave box, a base of the peel is inserted between the brackets, and a gap between the bracket is provided between the center pin receiving boss and the base of the peel. An orange peel bucket in which a center pin having a shorter size is loosely fitted, and both ends of the center pin are fitted with center pin receiving bosses so that bushes are respectively crowned. 3. The orange peel bucket according to claim 1, wherein the bush is a bottomed cylindrical body having a stopper with which the end of the center pin abuts and an oil reservoir groove, and can be fitted into the center pin receiving boss. 4. The orange peel bucket according to claim 1, wherein the bush is projected from the center pin receiving boss and an outer peripheral portion of the bush is welded to the center pin receiving boss. 5. A retaining plate interposed between a pair of adjoining brackets has both side ends abutting against the bush, and upper and lower ends thereof are fixed to the lower sheave box by welding. , 3 and 4 orange peel bucket. 6. The orange peel bucket according to claim 1, wherein the center pin and the bush are connected by welding.