KR102709915B1 - Construction equipment with dozer and roller - Google Patents

Abstract

The present invention relates to construction equipment equipped with a hydraulically elevating dozer and a compaction mechanism, the structure of which is improved so that a dozer device and a compaction mechanism are provided on the front side of the vehicle body in a tilting rotation manner by first and second tilting means, respectively, so as to selectively contact the ground, thereby enabling the operator to select the dozer or compaction function according to his choice, and so that the dozer function and compaction function can be used in parallel with a single excavator in a narrow waterway.

Description

Construction equipment with dozer and roller

The present invention relates to construction equipment equipped with a hydraulically elevating dozer and a compaction mechanism, and more particularly, to construction equipment including an excavator applied to a site for canal construction, etc., wherein the dozer device and the compaction mechanism on the front side of the vehicle body are respectively elevated and rotated in a tilting rotation manner by first and second tilting means so as to selectively contact the ground, thereby enabling the dozer or compaction function to be selected according to the operator's choice, and thus enabling the dozer function and compaction function to be used in parallel with a single excavator in a narrow canal. The present invention relates to construction equipment equipped with a hydraulically elevating dozer and a compaction mechanism, the structure of which is improved so that the dozer device and the compaction mechanism can be selectively contacted with the ground in a tilting rotation manner by the first and second tilting means on the front side of the vehicle body, and the dozer device and the compaction mechanism can be selectively contacted with the ground in a tilting rotation manner so as to enable the operator to select the dozer or compaction function according to the operator's choice.

In general, an excavator is a construction machine for transporting, loading, and excavating soil or materials. In addition, attachments are installed on the excavator, and the work varies depending on the type of attachment installed.

These excavators work by changing two to three attachments per job.

Attachments used in excavators include buckets, tongs, and breakers.

However, since excavators can usually only install one attachment at a time, to use a different attachment, the excavator must move to the location where the attachment required for that task is located.

In addition, there are often long distances between where the required attachments are located and where the excavator is working. Therefore, there is a problem that it takes a lot of time to exchange the required attachments.

In addition, there is a problem that the work efficiency of the excavator is reduced because it takes a lot of time to exchange attachments.

As a conventional prior art related to an excavator equipped with a dozer, as disclosed in Korean Patent Publication No. 10-2195598 “Excavator equipped with a dozer device” (Registration date: 2020.12.21), the dozer device includes a dozer frame coupled to the lower end of the excavator, a dozer blade provided on one side of the dozer frame, and a support member coupled to the upper end of the dozer blade and formed in a hook shape with one end bent.

As a prior art related to existing road paving rollers, as disclosed in Korean Patent Publication No. 10-1239402, "Road Paving Roller Device" (Registration Date: 2013.02.26), a road paving roller device including a vehicle body and a roller wheel rotatably installed on the vehicle body and supporting the driving of the vehicle body while leveling the support surface, wherein when the vehicle body is driving backwards, if a worker or an obstacle is located at the rear of the vehicle body, a safety unit is provided that detects this and automatically stops the driving of the vehicle body, wherein the safety unit includes a detection unit including a rotational shaft rotatably installed at the rear of the vehicle body, a rotational rod extending from the rotational shaft, and a contact panel installed on the rotational rod so as to be located at the rear of the roller wheel and rotating the rotational rod and the rotational shaft by contacting the worker or obstacle located at the rear of the vehicle body, and when the contact panel is pressed by the worker or obstacle at the rear of the vehicle body and the rotational shaft rotates, a detection unit provided on the vehicle body It includes a vehicle stopping unit that operates the parking brake to stop the vehicle body.

However, as explained above, existing construction equipment has the disadvantage of increasing construction costs because the dozer and compaction device cannot be mounted on a single excavator and must be installed by replacing attachments or deployed to the construction site as separate equipment.

Korean Patent Publication No. 10-2195598 "Excavator with dozer device" (Registration date: 2020.12.21) Korean Patent Publication No. 10-1239402 "Roller Device for Road Paving" (Registration Date: 2013.02.26)

The present invention has been created to solve the above-mentioned problems in consideration of the above-mentioned various problems, and its purpose is to provide construction equipment equipped with a hydraulically elevating dozer and a compaction mechanism, the structure of which is improved so that a dozer device and a compaction mechanism are provided on the front side of the vehicle body in a tilting rotation manner by first and second tilting means, respectively, so as to selectively contact the ground, thereby enabling the operator to select the dozer or compaction function according to his choice, and so that the dozer function and compaction function can be used in parallel with a single excavator in a narrow waterway.

In order to achieve the above object, the present invention is characterized by comprising: a vehicle body having a boom member which is drivable, one end of which is rotatably connected to a vehicle body and rotated by a boom cylinder, and an arm member whose one end is rotatably connected to the other end of the boom member, is rotatably connected by an arm cylinder, and whose other end is connected to an attachment mechanism; a dozer device which is provided on the front side of the vehicle body and has a dozer blade which is arranged to be tilted and rotated by a tilting means and which comes into contact with the ground when lowered; and a compaction device which is arranged between the front of the vehicle body and the dozer blade and is raised and lowered in the up and down directions by an elevating means and performs a function of compacting the ground when lowered.

The above compacting mechanism is a roller compactor or a vibration compactor.

The above tilting means comprises first and second support bars, one end of which is rotatably connected to the front left and right sides of the vehicle body, a connecting bar connecting the other ends of the first and second support bars and having the dozer device positioned at the front, and a tilting cylinder connected to the first and second support bars and tilting and rotating the first and second support bars.

The above tilting cylinder has one end rotatably connected to the vehicle body and connected to a boom pole rotated by the boom cylinder, and the other end is connected to the first and second support bars, respectively.

The above-mentioned lifting means comprises a support bracket that supports the left and right sides of the compaction mechanism, and an lifting cylinder in which the end of a rod is connected to the upper side of the support bracket and which elevates the compaction mechanism in the up and down directions.

The above lifting cylinder is connected to a boom whose upper part is rotated by a boom cylinder.

The present invention adjusts the gap between the rotator and the ground by using a tilting means according to the operation selection of the operator, and by rotating the rotating body of the rotator, an attachment (dozer device, compaction device) required for ground work can be selected, and since a plurality of attachment devices can be selectively used for a single piece of construction equipment including an excavator, the attachment replacement time can be reduced, and since two tasks can be performed simultaneously with a single piece of construction equipment, the work efficiency can be improved and the construction cost can be reduced, and the convenience of product maintenance can be increased.

The present invention provides an excavator specialized for waterway construction by enabling the excavator to perform various functions easily using a plurality of attachments in a narrow waterway construction site, and has the useful advantages of easy maintenance of attachment parts and reduced manufacturing costs.

Figure 1 is a configuration diagram showing a construction equipment equipped with a hydraulic lifting dozer and a compaction mechanism according to the present invention.
Figure 2 is a perspective view showing the first and second tilting means of the present invention.
Figure 3 is a diagram showing a state in which the doser device of the present invention is tilted and rotated downward using a tilting means.
Figure 4 is a diagram showing the state in which the compaction mechanism of the present invention is tilted and rotated downward using an elevating means.
Figure 5 is a drawing showing a state in which the vibration compact of the present invention is employed as a compaction mechanism.

In describing the present invention, if it is judged that a specific 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 described below are terms defined in consideration of functions in the present invention and may vary depending on the user's intention or custom, etc. Therefore, the definitions should be made based on the contents throughout this specification. In addition, 'including' a certain component does not mean excluding other components unless specifically stated otherwise, but rather that other components may be included.

Construction equipment equipped with a hydraulically elevating dozer and a compaction mechanism according to the present invention will be described with reference to FIGS. 1 to 5, including a vehicle body (100) that is drivable, has a boom (210) that is rotatably connected at one end to a vehicle body (100) and rotated by a boom cylinder (220), and an arm member (230) that is rotatably connected at one end to the other end of the boom (210), is rotatably connected by an arm cylinder (240), and has an attachment mechanism (250) connected at the other end; a dozer device (300) that is provided on the front side of the vehicle body (100) and has a dozer blade (310) that is arranged to be tilted and rotated by a tilting means (400) and comes into contact with the ground during a lowering operation; And a compaction mechanism (500) which is arranged between the front of the vehicle body (100) and the dozer blade (310) and is raised and lowered by the lifting means (600) and performs the function of compacting the ground during the lowering operation; and the tilting means (400) is composed of first and second support bars (410, 420) whose one end is rotatably connected to the left and right sides of the front of the vehicle body (100) by a rotating pin (405), a connecting bar (430) which connects the other ends of the first and second support bars (410, 420) and in which the dozer device (300) is arranged at the front, and a tilting cylinder (450) whose one end is connected to the boom (210) and the other end is connected to the first and second support bars (410, 420) so as to tilt and rotate the first and second support bars (410, 420), The lifting means (600) is characterized by comprising a support bracket (610) that supports the left and right sides of the compaction mechanism (500), and an lifting cylinder (620) that has one end connected to the boom (210) and the other end connected to the upper side of the support bracket (610) to elevate the compaction mechanism (500) in the up and down directions.

Referring to Fig. 1, the vehicle body (100) is arranged to be able to travel by wheels on the left and right sides or, in the case of an excavator, by means of caterpillar tracks, and a cabin (110) for the driver to ride in is provided on the top.

As shown in FIG. 1, the vehicle body (100) has a boom member (210) whose one end is rotatably connected to the vehicle body (100) and rotated by a boom cylinder (220), and an arm member (230) whose one end is rotatably connected to the other end of the boom member (210) and whose one end is rotatably connected by an arm cylinder (240) and to which an attachment mechanism (250), such as a breaker, is connected at an inclined angle.

The above boom (210) has a structure in which one end is connected to an axis so that it can rotate in front of the vehicle body (100) and the rotation angle is changed by the expansion and contraction of the boom cylinder (220).

The above-mentioned female member (230) has a structure that tilts and rotates from the other end of the boom (210) by a female cylinder (240) placed on the boom (210).

The above compaction device (500) may employ a roller member (500A) for compacting the ground inside a ditch of a narrow waterway, or a vibration compactor (500B) as shown in FIG. 5, or may employ other attachments.

The above compaction device (500) is composed of a roller member (500A) and a doser device (300), or a vibration compactor (500B) and an attachment of a doser device (300), depending on the user's work purpose, and has the advantage of being able to perform work according to the user's choice.

As shown in FIGS. 2 and 3, the above-mentioned dozer device (300) has a structure that tilts and rotates relative to the vehicle body (100) by the tilting means (400).

As shown in FIGS. 1 and 2, the tilting means (400) is composed of first and second support bars (410, 420) each having one end rotatably connected to the left and right sides of the front of the vehicle body (100) by a rotation pin (405), a connecting bar (430) connecting the other ends of the first and second support bars (410, 420) and having the dozer blade (310) positioned at the front, and a tilting cylinder (450) having one end connected to the boom (210) and the other end connected to the first and second support bars (410, 420) so as to tilt and rotate the first and second support bars (410, 420).

The above first and second support bars (410, 420) and connecting bar (430) are formed in a square frame shape with one side (facing the cabin) open, and have a structure that tilts and rotates toward the front side of the vehicle body (100) by a tilting cylinder (450).

The above tilting cylinder (450) may be placed on one of the first and second support bars (410, 420), or may be placed on each of the first and second support bars (410, 420) to reduce the load.

When one end of the above tilting cylinder (450) is connected to the boom (210), it is connected to a separate connecting shaft (not shown) provided on the left and right sides of the boom (210) so as not to interfere with the lifting cylinder (620) of the lifting means (600).

As shown in FIG. 1, the above connecting bar (430) is tilted and rotated by the tilting cylinder (450) so that the dozer blade (310) of the dozer device (300) has the closest possible distance from the boom (210) of the excavator, or as shown in FIG. 3, the dozer blade (310) is tilted and rotated downward away from the boom (210) of the excavator so that it comes into contact with the ground by the tilting cylinder (450).

That is, when the construction equipment of the present invention is an excavator, the dozer device (300) and the compaction mechanism (500) are connected to the boom (210) of the excavator so as to be linked, and the operation of the attachment mechanism (breaker, etc.) provided on the female member (230) rotatably connected to the end of the boom (210) can be performed separately from the dozer device (300) and the compaction mechanism (500).

The above dozer blade (310) is fixed to the front side of the connecting bar (430) by means of a bolt or welding method.

The above-mentioned dozer mechanism (500) is placed in the space between the front of the vehicle body (100) and the dozer blade (310), and is placed between the first and second support bars (410, 420) so as not to interfere with the tilting rotation of the first and second support bars (410, 420).

In addition, as described above, the above-mentioned compaction mechanism (500) has a structure in which the gap with the boom (210) and the height with respect to the ground are adjusted according to the expansion and contraction operation of the lifting cylinder (620) of the lifting means (600), as shown in FIGS. 3 and 4.

As shown in FIGS. 1 and 2, the above-described lifting means (600) is composed of a support bracket (610) that supports the left and right sides of the compaction mechanism (500), and an elevating cylinder (620) that has one end connected to the boom (210) and the other end connected to the upper side of the support bracket (610) to elevate the compaction mechanism (500) in the up and down directions.

The above support bracket (610) has a structure in which it is lifted up and down by a lifting cylinder (620) on the front side of the vehicle body (100), or, if the construction equipment is an excavator, is connected to a boom (210) as shown in FIGS. 1 and 3 by a lifting cylinder (620).

In the latter case, after the excavation work of the attachment mechanism (250) connected to the end of the female member (230) is performed using the boom (210) and the female member (230), the work of the compaction mechanism (500) or the dozer device (300) is performed after the tilting rotation of the boom (210) is stopped, so that the work of the attachment mechanism (250) connected to the end of the female member (230) is not interfered with.

The above tilting cylinder (450) and the lifting cylinder (620) are each connected at one end to the front side of the vehicle body (100) or, as shown in FIGS. 2 and 3, at one end to the boom (210), and after the rotation of the boom (210) is completed, each load is stretched to selectively bring the dozer device (300) or the compaction device (500) into contact with the ground to perform ground preparation work.

The present invention having such a configuration rotates the dozer device (300) downwards with the tilting cylinder (450) so that the dozer blade (310) of the dozer device (300) comes into contact with the ground side after the rotation of the boom (210) is completed, as shown in FIG. 3, when the construction equipment is an excavator.

At this time, the tilting cylinder (450) rotates downward the first and second support bars (410, 420) that are rotatably connected to the vehicle body (100) at one end, and lowers the dozer device (300) connected to the connecting bar (430) that connects the other ends of the first and second support bars (410, 420) so that it comes into contact with the ground.

After the ground preparation work using the above-mentioned dozer device (300) is completed, the first and second support bars (410, 420) are rotated upward using the above-mentioned tilting cylinder (450) so that the dozer blade (310) is positioned at a height away from the ground.

Thereafter, the lifting cylinder (620) can move the support bracket (610) downward as shown in FIG. 4 to bring the lower part of the compaction mechanism (500) supported on the support bracket (610) into contact with the ground, and the compaction mechanism (500) performs a leveling operation to compact the ground.

After the ground leveling operation of the above-mentioned compaction device (500) is completed, the support bracket (610) is raised again using the lifting cylinder (620) to position the compaction device (500) at a height away from the ground.

The above-mentioned dozer device (300) or compaction device (500) and the attachment device (250) connected to the end of the female member (230) are positioned at different positions, so that each task can be performed simultaneously or selected and used individually.

When working with one of the attachments of the present invention, the following work process is performed.

If the task selected by the above driver is ground preparation work using a dozer device (300), the tilting cylinder (450) is used to tilt and rotate the first and second support bars (410, 420) downwards to bring the dozer device (300) into contact with the ground, and the compaction mechanism (500) is relatively positioned at a height spaced from the ground.

Conversely, when the driver uses a compaction device (500) to level the ground, the support bracket (610) is lowered using the lifting cylinder (620) so that the compaction device (500) comes into contact with the ground. In this case, however, the dozer device (300) is positioned at a height separated from the ground.

Accordingly, a driver riding in the cabin (110) of the vehicle body (100) can perform ground preparation work located at a construction site such as a waterway while driving the vehicle body (100), and after the driver performs ground preparation work using a dozer device (300), a compaction device (500) such as a roller member (500A) and a vibration compactor (500B) can be used to perform compaction work for leveling the ground.

When it is desired to switch the dozer device (300) and the compaction device (500) while performing the above-mentioned ground work, the dozer device (300) or the compaction device (500) is tilted and rotated away from the ground, and the selected attachment is lowered to approach the ground to bring the switched dozer device (300) or the compaction device (500) into contact with the ground.

Accordingly, the present invention provides a construction equipment including an excavator with a dozer device (300) and a compaction mechanism (500) respectively disposed thereon, and a tilting means (400) for tilting and rotating the dozer device (300) and an elevating means (600) for elevating the compaction mechanism (500), thereby enabling selection of attachments (dozer device (300), compaction mechanism (500)) required for ground work, and since a plurality of attachments can be selectively used on a single piece of construction equipment including an excavator, the replacement time for attachments can be reduced, and since two tasks can be performed simultaneously with a single piece of construction equipment, work efficiency can be improved, construction costs can be reduced, and the convenience of product maintenance can be increased.

The present invention provides an excavator specialized for waterway construction by enabling the excavator to perform various functions easily using a plurality of attachments in a narrow waterway construction site, and has the useful advantages of easy maintenance of attachment parts and reduced manufacturing costs.

In this way, although specific embodiments have been described in the detailed description of the present invention, it is obvious that various modifications are possible within a range that does not depart from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the embodiments described above, but should be determined not only by the claims described below but also by equivalents of the claims.

That is, the present invention 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 can make various modifications without departing from the gist of the present invention claimed in the claims, and such modifications are within the scope of the claims.

100 : Vehicle body 110 : Cabin
210 : Boom 220 : Boom Cylinder
230: Dark part 240: Dark cylinder
250 : Attachment mechanism 300 : Dozer device
310 : Dozer Blade 400 : Tilting Device
405: Rotating pin 410,420: 1st and 2nd support bars
430: Connecting bar 450: Tilting cylinder
500 : Compaction device 500A : Roller member
500B: Vibration compactor 600: Elevating device
610: Support bracket 620: Lifting cylinder

Claims (6)

A vehicle body (100) having a boom member (210) that is drivable and has one end rotatably connected to the vehicle body (100) and rotated by a boom cylinder (220), and an arm member (230) that has one end rotatably connected to the other end of the boom member (210) and is rotatably connected by an arm cylinder (240) and has an attachment mechanism (250) connected to the other end;
A dozer device (300) provided on the front side of the vehicle body (100) and capable of tilting and rotating by a tilting means (400) and equipped with a dozer blade (310) that comes into contact with the ground during a downward movement; and
It includes a compaction mechanism (500) which is placed between the front of the vehicle body (100) and the dozer blade (310) and is raised and lowered by the lifting means (600) and performs the function of compacting the ground during the lowering operation.
The above tilting means (400) is composed of first and second support bars (410, 420) each having one end rotatably connected to the front left and right sides of the vehicle body (100) by a rotation pin (405), a connecting bar (430) connecting the other ends of the first and second support bars (410, 420) and having the dozer device (300) positioned at the front, and a tilting cylinder (450) having one end connected to the boom (210) and the other end connected to the first and second support bars (410, 420) respectively to tilt and rotate the first and second support bars (410, 420).
A construction equipment equipped with a hydraulic elevating dozer and a compaction mechanism, characterized in that the above-mentioned elevating means (600) comprises a support bracket (610) that supports the left and right sides of the compaction mechanism (500), and an elevating cylinder (620) whose one end is connected to the boom (210) and whose other end is connected to the upper side of the support bracket (610) to elevate the compaction mechanism (500) in the up and down directions. In claim 1,
Construction equipment equipped with a hydraulic lifting dozer and a compaction mechanism, characterized in that the compaction mechanism (500) is a roller member (500A) or a vibration compactor (500B). delete delete delete delete

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