KR102427716B1 - Excavator - Google Patents

Abstract

The present invention can increase the rotational angle of the upper arm with respect to the lower arm and the rotational height of the upper arm by improving the rod member coupling structure of the rotating cylinder. In addition to making it easy to visually identify the cabin, it is possible to maintain sufficient reinforcement against the lateral impact force of the excavator body in which the cabin is located, and the structure has been improved so that the operator in the cabin can easily walk to the outside of the cabin It's about excavators.

Description

excavator {EXCAVATOR}

The present invention relates to an excavator, and in particular, by improving the rod member coupling structure of the rotating cylinder, the rotation angle of the upper arm with respect to the lower arm and the rotation height of the upper arm can be increased, and the lighting structure is improved so that the attachment of the attachment during night work is improved. In addition to allowing the operator in the cabin to visually easily identify the work process, sufficient reinforcement against the lateral impact force of the excavator body in which the cabin is located can be maintained, and the operator in the cabin can easily walk to the outside of the cabin. It relates to an excavator whose structure has been improved to be able to do so.

In general, an excavator is a term that refers to a machine that digs or handles excavation of land or rocks, and the types include tunnel excavators, front shovel excavators, waterway excavators, and tongshovel excavators.

Here, the front shovel excavator is a construction machine used to dig, break, excavate, or cut soft ground or rocks, and it is also called a poclain.

Such an excavator can be used by mounting an appropriate working device according to the condition of the soil and rock, the type of work and the use.

A bucket for general excavation and transport of soil, a breaker for crushing hard ground or rocks, and a crusher for dismantling and crushing buildings are the working devices mainly used in excavators.

In the method of operating the excavator as described above, the hydraulic valve is opened and closed according to the method of operation by the driver using two control devices provided in a cab called a cabin, and the driving unit is operated.

An excavator is a construction machine that can perform work such as building foundation work, housing site construction work, cargo loading, earth and sand loading, bridge hole digging, road construction, water supply and sewage work, etc. .

That is, when breaking hard parts such as rocks or bricks, the breaker is fastened to the arm, and the bucket is fastened to the arm when scooping up the crushed material by the breaker or spreading soil.

However, when the breaker is fastened to the arm of the excavator to break a hard part such as a rock or brick, the shreds that are broken, broken and fragmented by the breaker are thrown away in an unpredictable direction.

At this time, if the shreds bounce around and hit the windshield of the cab of the excavator, the windshield is not only damaged by the impact, but also when the shreds are large, the degree of damage is severe and the driver may be injured. there was.

To solve this problem, a safety net made of iron was installed on the front part of the windshield to prevent shredded objects from hitting the windshield.

Accordingly, even if the shredded material flies to the windshield side of the cab, the safety net blocks the shredded material to prevent damage to the windshield as well as protect the driver's safety.

As a prior art of the conventional excavator related to the above cabin protection, as disclosed in Korean Patent Publication No. 10-2010-0094038 "Safety net for excavators" (published date: August 26, 2010), to protect the cab of the excavator from debris In constituting the installed safety net, a pair of rails installed at regular intervals by fixed frames on both sides of the front and upper surfaces of the cab, respectively; a mesh body installed between the rails to block the front part of the cab, and a chain having a roller moving along the rail installed at one end is connected to both ends to be movable up to the upper surface of the cab; It is installed on the upper surface of the cab and consists of a drive motor for freely moving the mesh body along the rail by rotating the drive shaft with sprockets meshed with the chain on both ends.

In addition, as other prior art related to the existing excavator, as disclosed in Korean Patent Publication No. 10-1644567 "Excavator arm having a rotating device" (registration date: 2016.07.26), the arm cylinder is connected to the boom of the excavator An arm operated by and a bucket for excavation is connected to the lower end with a quick coupler interposed therebetween, and a bucket cylinder for operation of the bucket is installed on the front side, wherein the arm is divided into an upper arm and a lower arm and the upper arm It has a configuration in which the lower arm is selectively rotated at a predetermined angle between the lower arm and the lower arm, and a rotating device is fixed and installed so that the lower arm is rotatable by 360 degrees or more in both directions and selectively rotates at a predetermined angle.

However, in the existing excavator during the excavation work of the excavator boom during the night time, the driver in the cabin is checking the work progress process of attachments such as a bucket detachably coupled to the excavator with the light attached to the existing boom, but the fixed lighting in one direction The structure has a disadvantage in that the work site cannot be easily identified during night work.

In addition, in the existing excavator, an arm is rotatably coupled to the end of the boom, and the arm is rotated with respect to the boom using a rotating cylinder, and the rod end of the rotating cylinder is pin-coupled to both left and right side surfaces of the arm This structure has a disadvantage in that the rotation angle of the arm, which is variable according to the extension length of the rotating cylinder rod, is limited, and thus the height of the arm is limited and excavation is deteriorated.

In addition, the existing excavator does not have a separate reinforcing structure for the lateral impact force transmitted in the lateral direction with respect to the cabin, and there is a disadvantage in that the driver in the cabin is not able to move smoothly in the lateral direction in the excavator body.

Korean Patent Publication No. 10-2010-0094038 "Safety net for excavator" (published on August 26, 2010) Korean Patent Publication No. 10-1644567 "Excavator arm with rotating device" (Registration date: 2016.07.26)

The present invention was created in consideration of the above-mentioned problems, and its purpose is to improve the rod coupling structure of the rotating cylinder to increase the rotational angle of the upper arm with respect to the lower arm and the rotational height of the upper arm, An object of the present invention is to provide an excavator whose structure is improved so that the operator in the cabin can visually easily identify the working process of the attachment during night work by improving the lighting structure.

Another object of the present invention is to provide an excavator whose structure is improved so that sufficient reinforcement can be maintained against the lateral impact force of the excavator body in which the cabin is located, and the driver in the cabin can easily walk to the outside of the cabin. .

In the present invention for achieving the above object, the cabin in which the driver is boarded is disposed on the upper part of the upper revolving body, the arm is rotatably coupled to the end of the boom, and the arm is rotatably coupled to the upper end side by the expansion and contraction operation of the rod member of the rotating cylinder In the excavator for rotating the coupled boom: A plurality of fixing pieces coupled to the lower center of the boom in a horizontal direction to be spaced apart, and a rotation pin that is coupled through the fixing piece to pin-couple the rod member end of the rotating cylinder a lug member consisting of; a support bar installed on the upper surface side of the boom in the longitudinal direction, and a support bracket configured to be slidably coupled in up and down directions along the support bar to support the electric wire on the boom; a lighting member disposed on the left and right sides of the boom, respectively, disposed at different angles on the upper and lower portions to emit light at different angles as power is applied; and an auxiliary light disposed between the fixing pieces of one side and the other side of the lug member to emit light downward as an external power is applied; One end is coupled to each other at positions spaced apart from each other and the other end is bent so as to have a gap in which the support insert of the support bracket fitted with the support part is slidably moved, and the other end of the bent part is connected in a straight line. The support bracket of the support means is formed to extend to the left and right sides of the support inserting part into which the support bar is fitted, and to bind the wires accommodated therein, and to restore expansion and contraction when the wires are drawn in and out. It is characterized in that it is composed of a wire binding part having its own elastic force, and a wire insertion hole formed so that the wire can be drawn in and out of the wire binding part.

A plurality of lighting lamps arranged to be spaced apart from each other on the front surface of the cabin, and a protective cover in the form of a grid pattern coupled to the edge of the front window of the cabin by coupling means and crossing each other in horizontal and vertical directions are further provided.

It is coupled by welding to the lower surface of the upper revolving body and arranged in left and right lateral directions, and further comprising a catwalk having a step portion higher than the cabin than the cabin on the right side where the cabin is provided.

The upper portion of the step portion is formed in a non-slip structure to prevent slipping when walking by pedestrians.

The rotating cylinder is a hinge-coupled cylinder body to the upper revolving body.

The lighting member is composed of a first lighting member disposed on the upper left and right side surfaces of the boom, and a second lighting member disposed below the first lighting member, wherein the first lighting member is the second lighting member It is arranged in an upwardly inclined direction to emit light upwards than the illumination irradiation angle of the member, and the second lighting member is arranged in a downwardly inclined direction to emit light to a lower side than the centerline of the boom.

The present invention can improve the height of the boom during the extension operation of the rod member of the rotating cylinder during the rotating operation of the boom on the upper revolving body of the excavator, so that the excavation force can be improved during the excavation operation using the attachment connected to the end of the arm. In addition, it has a useful advantage of securing a wide field of vision of the driver during night work by using the lighting members disposed at different irradiation angles on both sides of the boom.

In addition, the present invention has an advantage in that the front window of the cabin is provided with a protective cover in the form of a grid pattern, so that the front window can be protected from stones thrown out toward the cabin during excavation work or crushing work.

In addition, the present invention has the advantage of being able to widen the driver's field of vision by being able to extend the lighting irradiation range during night work by using the auxiliary light and the lighting lamp.

And in the present invention, since the catwalk is coupled to the lower surface of the upper revolving body and the step portion for the driver's walking protrudes from the cabin side, it is possible to protect the driver in the cabin from the lateral impact force, and the driver's It has the advantage of being able to walk.

1 is a perspective view showing an excavator according to the present invention.
Fig. 2 is a front view of Fig. 1;
Fig. 3 is a side view of Fig. 1;
Figure 4 is an enlarged perspective view of the lighting member provided in the boom of the present invention.
Figure 5 is a view showing the present invention auxiliary light and lug member.
6 is a view showing a support means of the present invention.

In describing the present invention, if it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the gist of the present invention, a detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of the user. Therefore, the definition should be made based on the content throughout this specification. In addition, 'including' a certain component means that other components may be further included, rather than excluding other components, unless otherwise stated.

The excavator according to the present invention is described with reference to FIGS. 1 to 6 , the cabin 120 in which the driver is boarded is disposed on the upper part of the upper revolving body 110 , and the arm 170 is located at the end of the boom 150 . In the excavator for rotating the boom 150 coupled to the rotatably and the rod member 210 of the rotating cylinder 200 by the expansion and contraction operation of the arm 170 on the upper end side: the lower center side of the boom 150 A plurality of fixing pieces 310 that are spaced apart from each other in the transverse direction, and a rotation pin 320 that is coupled to the fixing piece 310 and penetrates the rod member 210 end of the rotary cylinder 200 is pin-coupled. a lug member 300 made of; It is composed of a support bar 810 installed in the longitudinal direction on the upper surface side of the boom 150, and a support bracket 820 that is slidably coupled in the up and down directions along the support bar 810. a support means 800 for supporting the electric wire 355 on the 150; a lighting member 400 disposed on the left and right sides of the boom 150 and disposed at different angles on the upper and lower portions to emit lights at different angles as power is applied; and an auxiliary light 350 disposed between the fixing piece 310 of one side and the other side of the lug member 300 to emit light downward as an external power is applied.

1 to 5 , the lug member 300 is provided with a plurality of fixing pieces 310 spaced apart from each other in the transverse direction on the lower surface of the boom 150, and the fixing pieces 310 are disposed. It is provided with a hinge pin 320 that is coupled through the rod member 210 and is hinged through the end of the rod member 210 .

As shown in FIG. 5 , the lug member 300 further includes an auxiliary light 350 that emits light downward as an external power is applied.

The rotary cylinder 200 has a configuration in which the cylinder body is hinged to the upper revolving body 110, the end of the rod member 210 is connected to the lug member 300, and is disposed on both left and right sides, respectively have a structure

The auxiliary light 350 is installed between the fixing piece 310 of one side and the other side of the lug member 300, as shown in FIG. During excavation work, light is emitted toward the ground to help secure the driver's field of vision.

As shown in FIG. 4 , the lighting member 400 includes a first lighting member 410 disposed on both left and right sides of the boom 150 , and a lower side of the first lighting member 410 . and a second lighting member 420 disposed thereon.

The first lighting member 410 is disposed in an upward inclined direction so as to emit light upward from the illumination angle of the second lighting member 420 .

In addition, the second lighting member 420 is disposed in a downwardly inclined direction to emit light lower than the first lighting member 410 .

Accordingly, the first and second lighting members 410 and 420 irradiate illumination light at different angles when power is applied, so that the driver riding in the cabin 120 can visually easily see the work situation in real time during night work. It has an identifiable advantage.

Referring to FIGS. 2 and 5 , a plurality of lighting lamps 700 arranged to be spaced apart from each other on the front surface of the cabin 120 are coupled to the edge of the front window 122 of the cabin 120 by a coupling means, and are coupled to each other in the horizontal direction. And it further includes a protective cover 500 in the form of a grid pattern that crosses each other in the longitudinal direction.

The lighting lamps 700 are disposed on the upper portion of the front window 122 of the cabin 120 to be horizontally spaced apart from each other.

The protective cover 500 includes upper and lower cover bodies 510 and the upper and lower cover bodies 510 coupled to the upper and lower sides of the front window 122 spaced apart from each other by welding or the like. It is composed of a plurality of vertical connecting ribs 520 connected in the vertical direction, and horizontal connecting ribs 530 connecting the plurality of vertical connecting ribs 520 in the horizontal direction.

2 and 3 , it is welded to the lower surface of the upper revolving body 110 and disposed in left and right lateral directions, and protrudes more than the cabin 120 on the right side where the cabin 120 is provided It further includes a catwalk 600 having a step portion 610 of the structure.

The catwalk 600 is integrally coupled to the lower bottom of the upper revolving body 110 by welding or coupled to a bolted structure.

The step part 610 has a structure that protrudes outward than the cabin 120 so that the driver can walk out of the cabin 120 and walk on the upper revolving body 110, and the upper part prevents slipping when walking by pedestrians It is formed so as to have a non-slip structure.

The catwalk 600 has the advantage of being able to distribute and transmit the lateral impact force of the external impact generated during the excavation operation to the upper revolving body 110 side, and improve the reinforcing property against the direct impact force.

In addition, as shown in FIG. 6 , the present invention further includes a support means 800 for supporting the electric wire 355 on the boom 150 , and the support means 800 is installed on the boom 150 . The lead-in direction of the electric wire 355 to support the supporting bar 810 and the electric wire 355 supported by the support bar 810 so as to be liftable in up and down directions and supplying power to the lighting member 400 side. The support bracket 820 is formed to be opened and has its own elasticity.

As shown in FIG. 6 , the support bar 810 is fixed to the upper surface of the boom 150 in the longitudinal direction, and the support bracket 820 is inserted into the support bar 810 and slides in the up and down directions. It has a ring-bonded structure to be movable. That is, the support bar 810 of the support means 800 is a support bracket ( It is composed of a bent portion 811 bent so as to have an interval at which the support insertion portion 821 of 820 slides and a support portion 812 for connecting the other end of the bent portion 811 in a straight line.

As shown in FIG. 6 , the support bracket 820 has an annular ring shape so that one side is fitted to the support bar 810 , and the other side is formed in an arc shape to support the electric wire 355 in a fitting manner. have a structure That is, the support bracket 820 of the support means 800 is formed to extend to the left and right sides of the support insert 821 into which the support bar 810 is fitted, and the support insert 821 to the inside. A wire binding part 822 having its own elastic force that binds the accommodated wire 355 and expands and contracts when the wire 355 is drawn in and out, and the wire 355 is drawn in and out of the wire binding part 822. It is composed of a wire insertion hole 823 that is formed possible.

Accordingly, the present invention guides the electric wire 355 toward the lighting member 400, and can stably support the electric wire 355 against the movement of the flexible boom 150, and When the support bracket 820 is moved up and down, it is possible to minimize the friction between the electric wire 355 and the support bracket 820 as the support bracket 820 moves upward and downward with respect to the support bar 810 to minimize the friction between the electric wire 355 and the support bracket 820 . ) has the advantage of improving the durability.

In the excavator according to the present invention having such a configuration, the end of the rod member 210 of the rotary cylinder 200 is connected to the lug member 300 provided under the boom 150 by a hinge pin 320, and the boom ( Since the lower end of 150) is rotatably connected to the upper revolving body 110, when the rod member 210 of the rotary cylinder 200 is extended, the boom 150 is rotated upward.

At this time, the rotary cylinder 200 has an end of the rod member 210 connected to the lug member 300 side provided on the lower surface of the boom 150, so that during the extension operation of the rod member 210, the boom ( 150) has the advantage of being able to rotate the height of the existing boom 150 to a higher position than the height.

The lighting member 400 is disposed on the left and right both sides of the boom 150, respectively, and since the first and second lighting members 410 and 420 are disposed to irradiate light at different angles, It has the advantage of being able to easily secure the view of the driver riding in the cabin 120 by enlarging it.

In addition, the present invention can emit light at various angles using the auxiliary light 350 provided on the lug member 300 side and the plurality of lighting lamps 700 provided in the front of the cabin 120, so that night work It has the advantage of stably securing the driver's field of vision.

In addition, in the present invention, since the protective cover 500 is installed on the front window 122 of the cabin 120, it is possible to protect the front window 122 from external impacts such as stones splashing during crushing or excavation work. have an advantage

Since the catwalk 600 is coupled to the lower surface of the upper revolving body 110 by welding or the like, the external impact force transmitted in the left or right direction can be distributed to the upper revolving body 110 side. Product durability can be improved, and in particular, it has the advantage of protecting the driver by blocking an external shock transmitted directly to the cabin 120 side.

In addition, since the catwalk 600 has a step portion 610 protruding more outward than the cabin 120 on the right side where the cabin 120 is located, the driver can safely walk on the upper revolving body 110 . have the advantage that

The support bracket 820 is coupled to the support bar 810 disposed on the upper surface of the boom 150 so as to be lifted up and down in the vertical direction, and the electric wire 355 is fitted on the other side of the support bracket 820 . By being coupled so as to support the movement of the electric wire 355 flowing according to the movement of the boom 150, the electric wire 355 does not interfere with the excavation operation.

Therefore, the present invention can improve the height of the boom 150 during the extension operation of the rod member 210 of the rotary cylinder 200 during the rotary operation of the boom 150 on the upper revolving body 110 of the excavator, so that the arm 170 ) to improve the excavation force during excavation work using an attachment connected to the end of the boom 150, and at night work using the lighting member 400 disposed at different irradiation angles on both the left and right sides of the boom 150 It has a useful advantage of being able to secure a wide driver's field of vision.

In addition, in the present invention, since the front window 122 of the cabin 120 is provided with a protective cover 500 in the form of a lattice pattern, the front window 122 from stones thrown out toward the cabin 120 during excavation or crushing work. has the advantage of protecting

In addition, the present invention has the advantage that it is possible to expand the illumination irradiation range during night work by using the auxiliary light 350 and the lighting lamp 700, thereby securing a wide driver's field of vision.

And in the present invention, since the catwalk 600 is coupled to the lower surface of the upper revolving body 110 and the step portion 610 for the driver's walking protrudes from the cabin 120 side, the cabin 120 from the lateral impact force. ) can protect the driver on board and has the advantage that the driver can walk on the upper revolving body 110 .

As such, although specific embodiments have been described in the detailed description of the present invention, various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiment, but should be defined by the claims and equivalents as well as the claims to be described later.

That is, the present invention described as described above is not limited to the specific preferred embodiments described above, and anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the present invention as claimed in the claims Of course, various modifications are possible, and such modifications are within the scope of the claims.

110: upper revolving body 120: cabin
122: front window 150: boom
170: arm 200: rotating cylinder
210: rod member 300: lug member
310: fixed piece 320: hinge pin
350: auxiliary light 355: wire
400: lighting member 410, 420: first and second lighting members
500: protective cover 510: cover body
520: vertical connecting ribs 530: horizontal connecting ribs
600: cat walk 610: step part
700: lighting 800: support means
810: support bar 820: support bracket

Claims (6)

The cabin 120 on which the driver is boarded is disposed on the upper revolving body 110, the arm 170 is rotatably coupled to the end of the boom 150, and the rod member 210 of the rotary cylinder 200 In the excavator for rotating the boom 150 coupled to the arm 170 on the upper side by the expansion and contraction operation:
A plurality of fixing pieces 310 are coupled to the lower center of the boom 150 to be spaced apart from each other in the transverse direction, and the rod member 210 end of the rotating cylinder 200 by being coupled to the fixing pieces 310 to be penetrated. a lug member 300 made of a rotating pin 320 to which the pin is coupled;
It is composed of a support bar 810 installed in the longitudinal direction on the upper surface side of the boom 150, and a support bracket 820 that is slidably coupled in the up and down directions along the support bar 810. a support means 800 for supporting the electric wire 355 on the 150;
a lighting member 400 disposed on the left and right sides of the boom 150 and disposed at different angles on the upper and lower portions to emit lights at different angles as power is applied; and
and an auxiliary light 350 disposed between the fixing piece 310 of one side and the other side of the lug member 300 and emitting light downward as an external power is applied;
The support bar 810 of the support means 800 is a support bracket 820 in which one end is coupled to each other at positions spaced apart from each other in the longitudinal direction on the upper surface side of the boom 150 and the other end is fitted with a support 812 ). It consists of a bent portion 811 bent so as to have a gap in which the support inserting portion 821 of the sliding movement is moved, and a support portion 812 connecting the other end of the bent portion 811 in a straight line form,
The support bracket 820 of the support means 800 includes a support insert 821 into which the support bar 810 is fitted, and an electric wire that is extended to both left and right sides of the support insert 821 and accommodated therein. A wire binding part 822 having its own elastic force that binds the 355 and expands and contracts and restores when the wire 355 is drawn in and out, and the wire 355 can be drawn in and out of the wire binding part 822 Excavator, characterized in that consisting of a wire insertion hole (823) to be formed. The method according to claim 1,
A plurality of lighting lamps 700 arranged to be spaced apart from each other on the front surface of the cabin 120;
Excavator, characterized in that it is coupled to the edge of the front window (122) of the cabin (120) by a coupling means and further comprises a protective cover (500) in the form of a grid pattern that crosses each other in the horizontal and vertical directions. The method according to claim 1,
A step portion 610 coupled to the lower surface of the upper revolving body 110 by welding and disposed in the left and right lateral directions, the step portion 610 having a more protruding structure than the cabin 120 is formed on the right side where the cabin 120 is provided. Excavator, characterized in that it further comprises a catwalk (600) having. 4. The method of claim 3,
The upper portion of the step portion (610) is an excavator, characterized in that formed in a non-slip structure to prevent slipping when walking by pedestrians. The method according to claim 1,
The rotary cylinder 200 is an excavator, characterized in that the cylinder body is hinged to the upper revolving body (110). The method according to claim 1,
The lighting member 400 includes a first lighting member 410 disposed on the left and right side surfaces of the boom 150 and a second lighting member 420 disposed below the first lighting member 410 . ) is composed of
The first lighting member 410 is disposed in an upward inclined direction so as to emit light upward than the illumination irradiation angle of the second lighting member 420,
The second lighting member 420 is an excavator, characterized in that it is arranged in a downward inclined direction so as to emit light lower than the center line of the boom (150).

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