WO2016117715A1

WO2016117715A1 - Apparatus for connecting and disconnecting attachment of construction equipment

Info

Publication number: WO2016117715A1
Application number: PCT/KR2015/000553
Authority: WO
Inventors: 이병관; 한영곤
Original assignee: 볼보 컨스트럭션 이큅먼트 에이비; 이병관; 한영곤
Priority date: 2015-01-20
Filing date: 2015-01-20
Publication date: 2016-07-28

Abstract

The present invention relates to an apparatus for connecting and disconnecting an attachment of construction equipment and, more particularly, to an apparatus for connecting and disconnecting an attachment of construction equipment which can ensure interchangeability with respect to various attachments without changing the frame of the construction equipment or the attachment to be connected or disconnected thereto itself. To this end, the present invention provides an apparatus for connecting and disconnecting an attachment of construction equipment comprising: a first hole formed in a mounting face of a lower frame of the construction equipment on which the attachment is mounted; a second hole which is formed in a shape corresponding to the first hole on the mounting face of the attachment which is closely attached to the mounting face of the lower frame, and overlaps with the first hole to form one fastening hole when the attachment comes into close contact with the lower frame; a bolt fastened to the fastening hole; a spacer which is fastened to one side of the outer peripheral surface of the tail section of the bolt to fix the bolt to the second hole; and a mounting seat which is fastened to the other side of the outer peripheral surface of the tail section of the bolt to fix the bolt to the first hole.

Description

Attachment detachment device of construction equipment

The present invention relates to an attachment or detachment device for construction equipment, and more particularly, to an attachment and detachment device for construction equipment that can secure exchange compatibility for various attachments without changing the frame of the construction equipment or the attachment itself detached therefrom. .

In general, in the case of construction equipment, such as wheeled excavators, various attachments are mounted on the lower frame thereof. In this case, the attachment may be a dozer blade, an outrigger, or the like, and various holders, grips, and the like may be mounted on the lower frame according to the user.

Here, in the process of mounting the attachment to the lower frame of the construction equipment, the direction of the attachment is changed or replaced with other attachments in accordance with the work pattern and the user's preference frequently occurs, in order to respond to various attachments Compatibility must be ensured.

However, in the related art, a bolting system required according to the type of attachment, for example, the size or quantity of bolts required is different, and thus there is a problem in exchange compatibility, which frequently causes a problem of delayed work.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to construct a construction that can ensure the interchangeability of the various attachments without changing the frame itself or attachments detachable to the construction equipment It is to provide an attachment and detachment device of the equipment.

To this end, the present invention, the first hole formed in the mounting surface on which the attachment of the lower frame of the construction equipment; It is formed in a shape corresponding to the first hole on the mounting surface of the attachment in close contact with the mounting surface of the lower frame, when the attachment is in close contact with the lower frame to form one fastening hole Second hole; A bolt fastened to the fastening hole; A spacer coupled to an outer circumferential surface of one side of the tail of the bolt to fix the bolt to the second hole; And a mounting seat fastened to the other outer circumferential surface of the tail portion of the bolt to fix the bolt to the first hole.

Here, the first hole and the second hole may be formed as a long hole in the transverse direction.

In this case, at least one bolt may be fastened to the fastening hole.

In addition, the spacer may include a spacing portion positioned between the head of the bolt and the mounting surface of the attachment, and an insertion portion formed to be connected to the spacing portion and fitted into the second hole.

In this case, the width of the spacer portion is formed to be relatively larger than the width of the insertion portion, the width may be the width in the normal direction with respect to the direction in which the bolt is fastened.

The mounting sheet may include a base plate, a protrusion protruding from one surface of the base plate in a form capable of being fitted into the first hole, and the bolt so that the bolt is fastened, based on the fastening direction of the bolt. It may include a fastening hole formed in the form to communicate the front and rear of the base plate.

In this case, a screw thread is formed on the inner wall of the fastening hole, and the screw may be coupled to the bolt.

According to the present invention, the lower frame of the construction equipment and attachments such as dozer blades, outriggers, and grab holders attached to and detached from each other are provided with holes forming one fastening hole, respectively, and bolted through the holes By providing mounting fasteners and spacers, which are separate fasteners, it is possible to secure interchangeability of various attachments without changing the lower frame of the construction equipment or the attachment itself detached therefrom, thereby mounting attachments according to the needs of customers. This becomes possible.

In addition, according to the present invention, since only the size of the part to which the bolt is fastened when changing to other attachments, it is only necessary to change to the other spacer and mounting seat, it is possible to minimize the weight increase of the construction equipment even when replacing other attachments.

1 is a perspective view showing the attachment state detachment device of the construction equipment according to an embodiment of the present invention when the attachment is attached to the lower frame of the construction equipment.

2 is a cross-sectional view schematically showing a structure in which the attachment detachment device of the construction equipment according to an embodiment of the present invention when the attachment is mounted on the lower frame of the construction equipment.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the attachment and detachment device of construction equipment according to an embodiment of the present invention.

In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 and 2, the attachment detachment device of the construction equipment according to an embodiment of the present invention is equipped with attachments 20, such as dozer blade, outrigger, grab holder on the lower frame 10 of the construction equipment When you want to, it is the device to use.

Attachment 20 is assembled to the lower frame 10 of construction equipment through the attachment detachment device according to an embodiment of the present invention. Thereby, removal of the attachment 20 assembled is performed by isolate | separating an attachment attachment / detachment apparatus from the attachment 20 and the lower frame 10. As shown in FIG. That is, the attachment 20 is mounted or removed from the lower frame 10 of the construction equipment through the attachment detachment device.

As such, the attachment detachment apparatus according to the embodiment of the present invention, which enables the attachment 20 to be attached to or detached from the lower frame 10 of construction equipment, includes the first hole 110, the second hole 120, and the bolt 130. And a spacer 140 and a mounting seat 150.

The first hole 110 is formed in the mounting surface 11 on which the attachment 20 is mounted in the lower frame 10 of the construction equipment. The first hole 110 is formed in a shape corresponding to the second hole 120 formed in the mounting surface 21 of the attachment 20.

In an embodiment of the present invention, the first hole 110 is formed as a long hole in the transverse direction. As such, when the first hole 110 is formed as a long hole, the restriction on the number of bolts 130 fastened thereto is eliminated, so that the number of bolts 130 may be replaced with another attachment 20 requiring a different number of bolts 130. Even in this case, the number of bolts 130 required can be used without structural change of the lower frame 10 or the attachment 20 itself. That is, since the first hole 110 according to the embodiment of the present invention is formed as a long hole, it is possible to secure exchange compatibility for various attachments 20.

In addition, the first hole 110 according to the embodiment of the present invention is formed with a width larger than the tail diameter of the bolt 130 is fastened thereto. Here, the width is the longitudinal width of the first hole (110).

As such, when the longitudinal width of the first hole 110 has a width larger than the diameter of the tail portion of the bolt 130, restrictions on the size, such as the thickness or size of the bolt 130 fastened thereto, are relaxed. For example, when a bolt 130 of a different size is replaced with another attachment 20 that is required, it is possible to use the bolt 130 of the required size without structural change of the lower frame 10 or the attachment 20 itself. .

That is, the first hole 110 according to the embodiment of the present invention has a larger size than the bolt 130 fastened thereto in both the transverse direction and the longitudinal direction, thereby ensuring exchange compatibility for various attachments 20. do.

Here, as described above, since the first hole 110 is formed to have a larger size than the bolt 130 fastened thereto, the actual fastening of the bolt 130 is provided between the first hole 110 and the bolt 130. It is implemented through the spacer 140, which will be described in more detail below.

The second hole 120 is formed in the mounting surface 21 of the attachment 20 in close contact with the mounting surface 11 of the lower frame 10. In addition, the second hole 120 is formed in a shape corresponding to the first hole 110. That is, like the second hole 110, the second hole 120 is formed as a long length in the transverse direction, the width of the longitudinal direction is formed larger than the diameter of the tail portion of the bolt 130 is fastened thereto. Accordingly, in order to mount the attachment 20 to the lower frame 10 of the construction equipment, when the

close contact surfaces

11 and 21 of each other are in close contact, the second hole 120 overlaps the first hole 110. Thus, one fastening hole is formed.

Here, as the second hole 120 is formed in the same shape corresponding to the first hole 110, the substantially fastening of the bolt 130 to the second hole 120 is the second hole 120 and the bolt ( It is implemented through the mounting sheet 150 provided between 130, which will be described in more detail below.

The bolt 130 is fastened to one fastening hole formed by the first hole 110 and the second hole 120 overlapping each other. In this case, as described above, since the size of the bolt 130 is smaller than the size of the fastening hole, the tail of the bolt 130 on the lower frame 10 side of the construction equipment is fastened to the fastening hole through the mounting sheet 150. In addition, the tail portion of the bolt 130 on the attachment 20 side is fastened to the fastening hole through the spacer 140.

Meanwhile, as the fastening holes formed by the first holes 110 and the second holes 120 formed as long holes are also formed as long holes, one or more bolts 130 may be fastened to the fastening holes. For example, when two bolts 130 are used, each bolt 130 may be fastened to both side edges of the fastening hole in order to balance. However, this is only an example, and the bolt 130 may be fastened to various positions of the fastening hole.

In addition, in the embodiment of the present invention, since the diameter of the bolt 130 needs to be smaller than the longitudinal width of the fastening hole, in the range satisfying the above condition, the bolt 130 of different or different sizes for each attachment 20 is Can be used.

The spacer 140 is a member for fixing the bolt 130 to the second hole 120. To this end, the spacer 140 is fastened to an outer circumferential surface of one side of the tail of the bolt 130 exposed to one side of the tail of the bolt 130, and more particularly to the attachment 20, and fits into the second hole 120. Combined.

In an embodiment of the present disclosure, the size of the second hole 120 is fixed, and the bolt 130 may have a different size for each attachment 20. Accordingly, in order to fix the bolts 130 of various sizes in the second hole 120 having a fixed size, the size of the spacer 140 should also be provided in various ways to match the size of the bolts 130. In this case, the size of the spacer 140 refers to a bolt insertion hole size of the spacer 140 into which the bolt 130 is inserted, not the outer size of the spacer 140.

In an embodiment of the present invention, the spacer 140 may include a spacer 141 and an inserting portion 142.

Here, when mounting the attachment 20 to the lower frame 10 of the construction equipment, the spacer 141 is the head of the bolt 130 and the tail of the bolt 130 is inserted into the bolt insertion hole in the center It is located between the mounting surfaces 21 of the attachment 20. In addition, the insertion part 142 is formed to be connected to the spacing part 141 and is fitted into the second hole 120 in a state where the tail of the bolt 130 is inserted into the bolt insertion hole in the center. At this time, the width of the spacer 141 is formed relatively larger than the width of the insertion portion 142 when viewed based on the width of the normal direction with respect to the direction in which the bolt 130 is fastened. Accordingly, the separation part 141 forms a structure that is mounted behind the mounting surface 21 of the attachment 20, unlike the insertion part 142 inserted into the second hole 120.

As a result, the spacer 141 serves as a stopper for preventing further insertion of the insertion part 142 inserted into the second hole 120 when the bolt 130 is fastened, and the bolt 130 and the mounting surface. Between the 21 serves as a kind of washer to improve the fastening force of the bolts (130).

The mounting sheet 150 is a member for fixing the bolt 130 to the first hole 110. To this end, the mounting sheet 150 is fastened to the other outer circumferential surface of the other end of the bolt 130 exposed to the other side of the tail of the bolt 130, and more specifically to the lower frame 10 side of the construction equipment, the first hole Fits to the 110.

In an embodiment of the present disclosure, the mounting sheet 150 may be formed to include a base plate 151, a protrusion 152, and a fastening hole 153.

Here, the base plate 151 is formed of a plate-shaped plate larger in size than the size of the first hole 110. In addition, when viewed based on the fastening direction of the bolt 130, the protrusion 152 is formed to protrude from the front surface of the base plate 151. The protrusion 152 is formed to be fitted into the first hole 110. Accordingly, when mounting the attachment 20 to the lower frame 10 of the construction equipment, the protrusion 152 forms a structure that is inserted into the first hole 110, the base plate 151 of the lower frame 10 By forming a structure mounted behind the mounting surface, it serves to prevent further insertion of the protrusion 152. At this time, the protrusion 152 inserted into the first hole 110 is inserted into the first hole 110, in order not to affect the fastening torque of the bolt 130, the insertion portion 142 of the spacer 140. ) Is preferably inserted into the first hole 110 in a range forming a predetermined gap.

In addition, when viewed based on the fastening direction of the bolt 130, the fastening hole 153 is formed in a shape that communicates the front surface of the protrusion 152 and the rear surface of the base plate 151.

The tail of the bolt 130 is exposed to the fastening hole 153 is exposed to the lower frame 10 side of the construction equipment. At this time, a screw thread (not shown) is formed on the inner wall of the fastening hole 153, and the bolt 130 is screwed together.

Meanwhile, in the embodiment of the present invention, the size of the first hole 110 is fixed, and the bolt 130 may have a different size for each attachment 20. Accordingly, in order to fix the bolts 130 having various sizes in the first hole 110 having a fixed size, a mounting sheet having a fastening hole 153 having a size corresponding thereto for each bolt 130 is formed. 150) should be provided in various ways.

In addition, in the embodiment of the present invention, since the number of bolts 130 required for each attachment 20 may be different, a plurality of fastening holes 153 may be formed in consideration of the maximum number of bolts 130 used. have.

As described above, the attachment and detachment device of the construction equipment according to an embodiment of the present invention is formed in a shape corresponding to each other in each of the lower frame 10 and the attachment 20 mounted thereto to form a first fastening hole In addition to the 110 and the second hole 120, a spacer 140 and a mounting seat 150 for fixing various sizes and various numbers of bolts 130 to the fastening holes are provided.

At this time, the attachment detachment device of the construction equipment according to an embodiment of the present invention, without changing the lower frame 10 or the attachment 20 itself, so as to fit a variety of sizes and various numbers of bolts 130, spacer 140 according to this By selecting and using the mounting sheet 150), it is possible to secure the interchangeability of the various attachments 20, whereby the attachment and detachment and the exchange of the attachments 20 can be easily performed according to the customer's request. It becomes possible.

In addition, the attachment and detachment device of the construction equipment according to an embodiment of the present invention, when mounting the attachment 20, the technical requirements are different, as described above, the spacer 140 and the mounting seat (only the size of the portion where the bolt 130 is fastened) Since it is only necessary to change to 150, it is possible to minimize the weight increase of the construction equipment even when replacing the other attachment 20.

As described above, although the present invention has been described with reference to the limited embodiments and the drawings, the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below but also by the equivalents of the claims.

Claims

A first hole formed in a mounting surface on which an attachment is mounted among the lower frames of construction equipment;

It is formed in a shape corresponding to the first hole on the mounting surface of the attachment in close contact with the mounting surface of the lower frame, when the attachment is in close contact with the lower frame to form one fastening hole Second hole;

A bolt fastened to the fastening hole;

A spacer coupled to an outer circumferential surface of one side of the tail of the bolt to fix the bolt to the second hole; And

A mounting seat fastened to the other outer circumferential surface of the tail of the bolt to fix the bolt to the first hole;

Attachment detachment device of the construction equipment comprising a.
The method of claim 1,

Attachment detachment device, characterized in that the first hole and the second hole is formed in a long hole in the transverse direction.
The method of claim 2,

Attachment detachment device, characterized in that the bolt is fastened to at least one fastening hole.
The method of claim 1,

The spacer,

A spacing located between the head of the bolt and the mounting surface of the attachment, and

Attachment detachment device, characterized in that formed in connection with the spacing, the insertion portion which is fitted to the second hole.
The method of claim 4, wherein

The width of the separation portion is formed relatively larger than the width of the insertion portion, the width is attachment attachment device, characterized in that the width in the normal direction with respect to the direction in which the bolt is fastened.
The method of claim 1,

The mounting sheet,

Base plate,

Protruding portion formed to protrude from one surface of the base plate in a form capable of fitting into the first hole, and

Attachment attachment and detachment device of the construction equipment, characterized in that it comprises a fastening hole formed in the form to communicate the front surface of the protrusion and the rear surface of the base plate, so that the bolt is fastened.
The method of claim 6,

Threads are formed on the inner wall of the fastening hole, the attachment and detachment device of the construction equipment, characterized in that for screwing with the bolt.