WO2015005516A1

WO2015005516A1 - Structure for protecting main control valve for construction machine

Info

Publication number: WO2015005516A1
Application number: PCT/KR2013/006255
Authority: WO
Inventors: 김영동
Original assignee: 볼보 컨스트럭션 이큅먼트 에이비
Priority date: 2013-07-12
Filing date: 2013-07-12
Publication date: 2015-01-15

Abstract

A structure for protecting a main control valve for a construction machine, according to the present invention, comprises a housing provided to the upper frame of a construction machine and protecting a main control valve secured to the inside of the housing, wherein the housing comprises: side walls vertically extending upwards from a bottom surface supported on the upper frame; a cover member extending in the horizontal direction from the upper end portions of the side walls so as to seal the housing, and protecting the main control valve from external shock; a door fixedly provided to the side walls so as to be rotatable, and opening or closing the inlet of the housing during assembly and maintenance; and a shelf provided to the upper portion of the main control valve attached to the bottom surface, and dividing and compartmentalizing the internal space of the housing.

Description

Main control valve protection structure for construction machinery

The present invention relates to a main control valve protection structure for construction machinery, and more particularly to the upper swing structure of a small swing excavator through a composite structure capable of mounting and protecting other optional components as well as the protection of the main control valve elements. The main control valve protection structure for construction machinery with improved component protection and mounting performance while minimizing the increase in size.

In general, small swing excavators are operated in a relatively narrow space, and have a small size and size of lower traveling body, and the engine room or main control valve and boom or arm and bucket forming the upper swing body. Including working devices are assembled.

1 is a schematic view of a conventional small swing excavator, as shown, the small swing construction equipment 10 is the upper frame 3 is rotatably mounted on the lower running body 2, the upper frame as a work device A boom 6 and a bucket 5 in which the proximal end is fixed to (3) are configured, and the cab 1 and the engine room 4 are manufactured in the upper frame 3 so that the turning radius is smaller than that of a general excavator. .

In particular, it should be designed so that the machine elements are arranged compactly within the trailing turn radius, which is limited by the width of the undercarriage 2 so as to enable work in a narrow place. Accordingly, various researches and developments have been attempted in various ways to more efficiently use the space required for the small swing excavator.

For example, the construction machine proposed in Korean Patent Laid-Open Publication No. 2010-0048958 (published May 11, 2010) is to configure the hydraulic element and fuel supply elements more compactly while reducing the diameter of the suction hose winding part.

However, in recent years, exhaust gas regulations have been tightened, and in order to adapt to such regulations, development and commercialization of space utilization in which new parts such as urea tanks are essential are required more urgently, and thus, the upper turn is required. There is a problem of increasing the size of the sieve and a problem that the space made for the convenience of the driver is further reduced.

Moreover, there is a problem that the service space provided for increasing the upper swing space of the small swing excavator and increasing the convenience of the driver is gradually reduced due to the increase in the options required by the consumer.

In particular, the main control valve forms an essential configuration for providing hydraulic pressure as a power source for driving equipment and work equipment, and is protected by a structure for protecting the main control valve and related hydraulic pipes from external impact.

However, in order to cope with a narrow design space, an increase in options, and a tightening of regulations, it is necessary to develop element technology for mounting and protecting additional components as well as a protection function of valve elements as well as an improved protection structure. .

The present invention was created to solve the above problems,

Main control for construction machinery with improved component protection and mounting performance while minimizing the increase in size of the upper swing structure of small swing excavators, as well as the protection of the main control valve elements, as well as the mounting and protection of other optional components required. The purpose is to provide a valve protection structure.

Another object of the present invention is to provide a main control valve protection structure for a construction machine having a space that can be utilized as a maintenance tool and a component storage when an optional component is not required.

One feature of the present invention for solving the above technical problem,

It is installed on the upper frame of the construction machine, the housing is configured to protect the main control valve seated on the housing bottom, the housing is a side wall extending vertically upward from the bottom surface supported on the upper frame; A cover member extending in a horizontal direction from an upper end of the side wall to seal the housing, the cover member protecting the main control valve from external shock, and rotatably fixed to the side wall, the inlet of the housing being assembled and maintained. It is provided on the top of the main control valve attached to the opening and closing door and the bottom surface, provides a main control valve protection structure for construction machinery comprising a shelf for dividing and partitioning the internal space of the housing. .

According to the present invention, the shelf is configured to include a partition plate on which one side is fixed to the side wall, it is useful for storing and installing urea tank parts and the like having an additional structure in accordance with the exhaust gas regulations.

According to the present invention, the partition plate may be formed in a multi-stage structure having a different height from the bottom surface to achieve mounting and protection performance of various optional components.

According to the invention, the cover member comprises an upper cover for protecting the shock acting on the upper part of the housing and an auxiliary cover connected to the upper cover, and accordingly the main control valve and selection according to the specifications of the equipment. Efficient protection and maintenance of parts of specifications.

On the other hand, according to the present invention, the door is rotatably installed by a hinge fixed to the side wall.

The main control valve protection structure for construction machinery according to the present invention is not only possible to mount the main control valve in the lower part of the shelf by forming a shelf through the partition plate inside the structure, but also easy to install a variety of optional parts and to utilize space It has the advantage of being efficient.

1 is a schematic diagram showing a conventional small swing excavator,

2 is a schematic perspective view of a main control valve protection structure for a construction machine according to the present invention;

3 is an exploded perspective view of a main control valve protection structure for a construction machine according to an embodiment of the present invention;

The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may legally define the concept of terms in order to best describe their invention. On the basis of the principle that the present invention should be interpreted as meanings and concepts corresponding to the technical idea of the present invention.

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

FIG. 2 is a schematic perspective view of a main control valve protection structure for a construction machine according to the present invention, and FIG. 3 is an exploded perspective view of the main control valve protection structure for a construction machine according to an embodiment of the present invention.

Prior to the description, reference numeral 20 schematically shows a door of a main control valve protection structure for a construction machine according to an embodiment of the present invention, 40 is a shelf, 41 is a partition plate, 33 is a protection cover schematically. will be.

The main control valve protection structure for a construction machine according to the present invention efficiently configures a design space for mounting and protecting an optional component or storing a tool together with the function of mounting and protecting the main control valve.

More specifically, referring to FIGS. 2 and 3, the housing 10 is configured to protect the main control valve MCV, which is installed on the upper frame 3 of the construction machine and is mounted on the bottom of the housing.

The housing 10 has a side wall 32 extending vertically upward from a bottom surface 31 supported on the upper frame 3, and extends in a horizontal direction from an upper end of the side wall 32. The cover member 33 which seals the 10 and protects the main control valve MCV from external impact, and is rotatably fixed to the side wall 32, and the inlet of the housing 10 during assembly and maintenance. The shelf 20 is installed on the top of the main control valve (MCV) attached to the door 20 and the bottom surface 31 to open and close the partition (40) to divide and partition the internal space of the housing (10) It is configured to include.

A rear wall 36 extending upwardly from the bottom surface 31 is formed on the rear surface of the housing opposite to the door 20, and an upper portion of the rear wall 36 seals the housing 10. It is configured to be covered by the cover member 33 together with the top of the side wall (32).

According to the present invention, the shelf 40 includes a partition plate 41 on which one side is fixed to the side wall 32, preferably a multi-stage structure different in height from the bottom surface, for example, the first It is formed of the partition plate 41a and the second partition plate 41b. The

partition plates

41a and 41b include a rigid steel material for mechanical mounting and supporting performance, and may be transformed into a multi-stage structure having a plurality of steps having different heights in addition to the steps formed on the drawings. to be.

On the partition plate 41 of the shelf 40, various optional components can be fixed and mounted by bolting or welding. In addition, if the optional components described above are unnecessary, the space of the shelf 40 may store tools or other mechanical parts for maintenance.

For example, the shelf space formed by the first partition plate 41a is an optional component, and the urea tank part may be fixed and mounted by bolting or welding, and the second partition plate 41b may be fixed to the second partition plate 41b. The shelf space formed by this can store maintenance tools.

Components mounted and stored on the tip 40 are protected from the outside by the cover member 33.

On the other hand, the main control valve protection structure for construction machinery according to the present invention, the cover member 33 can be manufactured separately, and the upper cover 33a for protecting the shock acting on the upper portion of the housing 10 and It is configured to include an auxiliary cover (33b) connected to the upper cover (33a), it is possible to efficiently protect and maintain the components mounted and stored in the housing.

The upper cover 33a is fixed to the auxiliary cover 33b by a fixing member 35 including a bolt as shown in FIG. 3, and is bent for space efficiency due to the rigidity of a material such as a steel member. Even if the structure is connected, it supports external shocks but maintains sufficient protection.

Considering the assembly of the upper cover 33a and the auxiliary cover 33b separated from the rear wall 36, the upper end of the rear wall 36 is bent the upper cover 33a and the auxiliary cover 33b. It may be manufactured to have a cutout 37 corresponding to the structure. The outer structure by assembling the upper cover 33a and the auxiliary cover 33b separated from the rear wall 36 described above may be variously modified to suit the specifications of the equipment.

Meanwhile, according to the present invention, the door 20 is rotatably installed by a hinge 23 fixedly coupled to the side wall 32. In addition, the door 20 may typically include a handle 22 having a handle or a locking device for door opening and closing operations.

The main control valve protection structure for a construction machine according to the present invention, as described above, the main control valve and piping elements are mounted and protected under the shelf space, and the optional parts or maintenance on the shelf space partitioned by the partition plate is provided. In order to increase the convenience, it provides a storage place for the tools and parts necessary for the driver.

In addition, despite the limited design space for manufacturing small swing excavators, various parts can be efficiently placed and mounted within a single structure, minimizing the size of the upper swing structure, making it easier to operate the equipment in tight areas. can do.

Although the above embodiments have been described in detail with reference to the accompanying drawings and embodiments, the accompanying drawings and the above embodiments have been described by way of example to help those skilled in the art to understand the present invention. . Accordingly, the above embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention should be construed in accordance with the invention set forth in the appended claims, the scope of which should be understood by those skilled in the art. Include various changes, alternatives, and equivalents by

The main control valve protection structure for construction machinery according to the present invention can be easily mounted on the shelf inside the structure as well as the mounting and protection of the main control valve as well as the required parts or government tools according to the addition of the optional equipment. It is useful for designing not to unnecessarily expand the overhead swing design space of or to reduce the service space given to the driver.

Claims

Installed in the upper frame of the construction machinery, the housing is configured to protect the main control valve seated on the bottom of the housing,

The housing,

A side wall extending vertically upwardly from a bottom surface supported on the upper frame;

A cover member extending in a horizontal direction from an upper end of the side wall to seal the housing and protecting the main control valve from an external impact;

A door rotatably fixed to the side wall, the door opening and closing the inlet of the housing during assembly and maintenance; And

And a shelf installed on an upper portion of the main control valve attached to the bottom surface and dividing and dividing an inner space of the housing.
The method of claim 1,

The shelf, the main control valve protection structure for a construction machine, characterized in that it comprises a partition plate on which one side is fixed to the side wall.
The method of claim 2,

The partition plate is a main control valve protection structure for a construction machine, characterized in that formed in a multi-stage structure different in height from the bottom surface.
The method of claim 3, wherein

The cover member, the main control valve protection structure for a construction machine, characterized in that it comprises an upper cover for protecting the impact acting on the upper portion of the housing and an auxiliary cover connected to the upper cover.
The method of claim 1,

And the door is pivotally installed by a hinge fixedly coupled to the side wall.