KR20120033202A - Grab driving device for heavy industrial equipment - Google Patents

Grab driving device for heavy industrial equipment Download PDF

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Publication number
KR20120033202A
KR20120033202A KR1020100094853A KR20100094853A KR20120033202A KR 20120033202 A KR20120033202 A KR 20120033202A KR 1020100094853 A KR1020100094853 A KR 1020100094853A KR 20100094853 A KR20100094853 A KR 20100094853A KR 20120033202 A KR20120033202 A KR 20120033202A
Authority
KR
South Korea
Prior art keywords
grab
arm
heavy equipment
rod
heavy
Prior art date
Application number
KR1020100094853A
Other languages
Korean (ko)
Inventor
곽민구
Original Assignee
주식회사 철우중공업
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 철우중공업 filed Critical 주식회사 철우중공업
Priority to KR1020100094853A priority Critical patent/KR20120033202A/en
Publication of KR20120033202A publication Critical patent/KR20120033202A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

PURPOSE: A grab driving device for heavy equipment is provided to simplify structure and reduce manufacturing costs by operating a upper grab and a lower grab simultaneously only by operating one cylinder connected to the upper grab. CONSTITUTION: A grab driving device for heavy equipment comprises a rod shaft(3), a rod(5), and a connection shaft(7). The rod shaft is formed in the left end of a heavy equipment arm(1). The rod is mounted on the rod shaft and the connection shaft is formed in the upper end of the rod. A piston(11) of a cylinder(9) mounted on the right side of the heavy equipment arm is connected to the connection shaft. An arm link(12) is attached in the connection shaft and a first arm(15) of an upper jaw(13) is connected to the end of the arm link. A grab connection shaft(17) is formed in the lower part of a second arm(16) mounted on the upper jaw. A grab connection shaft(17') of a second arm(16') mounted on a lower jaw(13') is connected by a pin(22).

Description

Grab Driving Device For Heavy Industrial Equipment

The present invention relates to a drive device for a heavy-duty grab, which is mainly equipped with a forceps or a cutter for heavy-duty at an end and is used to pick up, move or cut an object.

In general, the conventional heavy equipment grab to drive the upper, lower jaw upper, lower cutters constituting the grab,

After mounting the upper and lower grab on the end of the heavy equipment arm, the heavy arm and the upper and lower grab are connected by hydraulic cylinder, respectively, to take the form of driving the upper and lower grab,

Alternatively, as shown in the Republic of Korea Utility Model Registration No. 369383, as shown in FIG. 1, after the link (4) and the upper grab (6) is continuously mounted to the end of the heavy equipment arm (2), the heavy equipment arm (2) And link 4 to hydraulic cylinder 8, while hydraulic cylinder 8 'is reconnected between link 4 and lower grab 6' to drive lower grab 6 '. I was taking the way.

However, in both cases, since the hydraulic cylinder 8 'for driving the lower grab 6' is additionally mounted in addition to the hydraulic cylinder 8 for driving the upper grab 6, the structure is complicated and the manufacturing cost is increased. There was an upswing in the ascension

In addition, during heavy equipment work, since the lower hydraulic cylinder 8 'must be operated separately in addition to the upper hydraulic cylinder 8, there is a defect that the working speed becomes very slow.

In operation of heavy equipment, the upper grab 6 is operated first, and then the lower grab 6 'is operated again. By working in place, there was a closure that prevented the work from going smoothly.

The present invention has been studied in view of all the problems that such a conventional heavy-duty grab driving device has,

The object of the present invention is to improve the structure of the grab drive device for heavy equipment, to drive the upper and lower grab with only one hydraulic cylinder, to simplify the structure, and to reduce the manufacturing cost,

When working with heavy equipment, it is possible to operate the upper and lower grabs at the same time only by the operation of one cylinder, so that the operation can be made more smoothly, and the working time can be shortened and the work efficiency can be greatly improved.

To this end, the present invention,

The second arm of the lower grab is mounted on the grab connecting shaft of the upper grab, which is mounted on the left end of the heavy equipment arm and is operated by a cylinder, while the first arm of the lower grab is connected to the connecting shaft formed at the tip of the heavy arm. ,

By simply operating one cylinder connected to the upper grab, the upper grab and the heavy duty arm and the lower grab connected to the second and first arms operate simultaneously with the upper grab,

It greatly simplifies the structure, greatly reducing manufacturing costs,

When working with heavy equipment, it is possible to operate the upper and lower grabs at the same time only by the operation of one cylinder, it is possible to work more smoothly, it is characterized in that it is possible to greatly improve the work efficiency by reducing the working time.

Grab driving device for heavy equipment of the present invention,

By simply operating one cylinder connected to the upper grab, the upper grab and the heavy-duty arm and the lower grab connected to the second arm and the first arm operate simultaneously with the upper grab, which greatly simplifies the structure and greatly reduces the manufacturing cost. It works,

When working with heavy equipment, it is possible to operate the upper and lower grabs at the same time only by the operation of one cylinder, the work can be made more smoothly, there is an effect that can greatly improve the work efficiency by reducing the working time.

1 is a view showing the configuration of a conventional grab for heavy equipment,
Figure 2 is an overall exploded perspective view when the present invention is applied to the tongs for heavy equipment,
3 is an exploded perspective view of the upper and lower jaws,
4 is a diagram showing the operating state of the upper and lower jaws step by step,
5 is an overall exploded perspective view when the present invention is applied to a cutter for heavy equipment,
6 is an exploded perspective view of the upper and lower cutters,
7 is a diagram showing the operating state of the upper and lower cutters step by step.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an overall exploded perspective view when the present invention is applied to the forceps for heavy equipment,

3 is an exploded perspective view of the upper and lower jaws,

4 is a diagram showing the operating state of the upper and lower jaws step by step,

5 is an overall exploded perspective view when the present invention is applied to a cutter for heavy equipment,

6 is an exploded perspective view of the upper and lower cutters,

7 is a diagram showing the operating state of the upper and lower cutters step by step;

Grab driving device for heavy equipment of the present invention,

The rod shaft 3 is formed at the left end of the heavy equipment arm 1 so that the rod 5 is mounted, and the connecting shaft 7 is formed at the upper end of the rod 5 so that The piston 11 of the cylinder 9 attached to the right side is connected.

An arm link 12 is attached to the connecting shaft 7, and the first arm 15 of the upper jaw 13 or the upper cutter 14 is connected to an end thereof.

In addition, a grab connecting shaft 17 is formed at a lower portion of the second arm 16 mounted to the upper jaw 13 or the upper cutter 14, so that the lower jaw 13 ′ or the lower cutter 14 ′ is provided. The grab connecting shaft 17 'of the mounted second arm 16' is connected to the pin 22,

A first arm 15 'is mounted on the right side of the lower jaw 13' or the lower cutter 14 'so that a connecting shaft 7' formed at an end thereof is formed at the tip of the heavy duty arm 1. It is connected to the shaft 7 ".

The heavy-duty grab drive device of this invention comprised in this way,

When the object is to be moved or cut by the upper and lower jaws 13 and 13 'or the upper and lower cutters 14 and 14' forming the grab,

As shown in FIGS. 4 and 7, the cylinder 9 is first operated, and when the piston 11 is moved forward, the rod 5 connected to the piston 11 has the rod shaft 3 as the axis, and the rod 5 ) And the first arm 15 of the upper jaw 13 or the upper cutter 14 connected by the arm link 12 are rotated about the grab connecting shaft 17 so that the upper jaw 13 or the upper cutter 14 ) To retract.

In this case, the lower jaw 13 'or lower cutter 14' connected to the grab connecting shaft 17 and the grab connecting shaft 17 'of the upper jaw 13 or the upper cutter 14 is the heavy-arm arm 1. While rotating around the connecting shaft (7 ') formed at the left end of the () is simultaneously retracted with the upper jaw 13 or the upper cutter (14).

Therefore, according to such a grab driving device for heavy equipment of the present invention,

Only by operating the cylinder 9 connected to the upper jaw 13 or the upper cutter 14, the upper jaw 13 or the upper cutter 14 and the heavy-duty arm 1 and the second arm 16 'and the first The lower jaw 13 'or lower cutter 14' connected to the arm 15 'works together with the upper jaw 13 or the upper cutter 14 at the same time, which greatly simplifies the structure and greatly reduces manufacturing costs. It works,

In heavy equipment operation, the upper and lower jaws 13, 13 'or the upper and lower cutters 14, 14' can be operated simultaneously by only one cylinder 9 operation, so that the operation can be performed more smoothly. In addition, there is an advantage that can greatly improve the work efficiency by reducing the working time.

In the above, the present invention has been described based on specific embodiments, but the present invention may be modified in various ways within the technical idea of the present invention, and the technical scope of the present invention is not limited to the above embodiments.

1: heavy duty arm
3: rod shaft
5: Load
7, 7 ', 7 ": connecting shaft
9: cylinder
11: piston
13: upper jaw
13 ': Lower jaw
14: upper cutter
14 ': lower cutter
15, 15 ': 1st arm
16, 16 ': second arm
17, 17 ': Grab connecting shaft
22: pin

Claims (2)

The rod shaft 3 is formed at the left end of the heavy equipment arm 1 so that the rod 5 is mounted, and the connecting shaft 7 is formed at the upper end of the rod 5 so that the right side of the heavy equipment arm 1 is formed. The piston 11 of the cylinder 9 attached to the part is connected,
An arm link 12 is attached to the connecting shaft 7, and the first arm 15 of the upper jaw 13 is connected and mounted at an end thereof.
A grab connecting shaft 17 is formed at a lower side of the second arm 16 mounted on the upper jaw 13, and a grab connecting shaft of the second arm 16 'mounted on the lower jaw 13' ( 17 ') is connected to pin 22,
A first arm 15 'is mounted to the right side of the lower jaw 13' so that a connecting shaft 7 'formed at an end thereof is connected to a connecting shaft 7 "formed at the front end of the heavy equipment arm 1'. Grab drive device for heavy equipment, characterized in that. The method of claim 1,
The upper and lower jaw (13) (13 ') is a grab driving device for heavy equipment, characterized in that consisting of the upper, lower cutters (14) (14').
KR1020100094853A 2010-09-29 2010-09-29 Grab driving device for heavy industrial equipment KR20120033202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100094853A KR20120033202A (en) 2010-09-29 2010-09-29 Grab driving device for heavy industrial equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100094853A KR20120033202A (en) 2010-09-29 2010-09-29 Grab driving device for heavy industrial equipment

Publications (1)

Publication Number Publication Date
KR20120033202A true KR20120033202A (en) 2012-04-06

Family

ID=46136085

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100094853A KR20120033202A (en) 2010-09-29 2010-09-29 Grab driving device for heavy industrial equipment

Country Status (1)

Country Link
KR (1) KR20120033202A (en)

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E902 Notification of reason for refusal
E601 Decision to refuse application