JPH09296481A - Device mounting structure for upper revolving structure in hydraulic excavator - Google Patents

Abstract

(57) [Abstract] [Problem] The seat and engine can be installed close to each other,
Make it easy to check the motor and generator for starting the engine. SOLUTION: A seat mounting body 20 having an inspection opening 55 on the upper surface is attached to the front-rear intermediate portion of the upper swing body 2, and an engine 8 is mounted near the rear portion of the upper swing body 2. A cover body 9 that covers the engine 8 and the seat attachment body 20 is attached, and a part of the cover body 9 can be opened and closed. The engine 8
The starting electric motor 12 and the generator 13 are made visible through the inspection opening 55 of the seat mounting body 20, and the starting electric motor 1 is rotated through the inspection opening 55 by rotating the seat 7 forward.
2. Allow the generator 13 to be inspected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting equipment such as an engine and a seat on an upper swing body of a hydraulic excavator.

[0002]

2. Description of the Related Art As a hydraulic excavator, the actual fairness is 4-379.
As shown in Japanese Patent Publication No. 76, an upper revolving structure is rotatably attached to a lower traveling structure, a boom type working machine is vertically swingably attached to a front end portion of the upper revolving structure, and an engine or the like is provided near a rear portion of the upper revolving structure. It is known that the engine is covered with a cover body, the control member is attached to the front part of the upper swing body, and the seats are attached to the front and rear intermediate parts.

[0003]

Since the engine and the like have a plurality of parts such as a starting electric motor, a generator, a fan belt, and engine oil that require inspection, a part of the cover body can be opened and closed. On the other hand, since the above-mentioned hydraulic excavator turns with respect to the lower traveling body, there is a limit to the size of the upper revolving body in order to avoid interference with obstacles when the upper revolving body turns. Since the boom-type work machine, the control member, the seat, the engine, etc. are attached to the upper swing body, the seat is attached close to or in contact with the front wall of the cover body, and the cover body is almost attached to the surroundings of the engine etc. It is installed without gaps.

Therefore, it becomes difficult to inspect each part of the cover body near the front wall when opening the part of the cover body and inspecting each part of the engine. Especially in the case of small hydraulic excavators, the upper swing body is made smaller and the cover body is made smaller so that it can swivel in a narrow space, so check the engine parts near the front wall of the cover body mentioned above. The work to do becomes very difficult to do.

Therefore, an object of the present invention is to provide a device mounting structure for an upper revolving structure in a hydraulic excavator which can solve the above-mentioned problems.

[0006]

[Means for Solving the Problems and Actions / Effects] The first invention is to attach an upper swing body 2 to a lower traveling body 1 so as to freely swing, and attach a boom type working machine 5 to a front end portion of the upper swing body 2. In a hydraulic excavator in which a steering member 6 is installed near the front of the upper swing body 2, a seat 7 is installed in the front-rear intermediate portion, and an engine 8 is installed near the rear portion, an opening for inspection is provided on the upper surface in the front-rear intermediate portion of the upper swing structure 2. A substantially box-shaped seat attachment body 20 having a portion 55 and having an opening at the lower rear surface is attached, and the seat 7 is attached to the seat attachment body 20 so as to close the inspection opening portion 55, and is attached to the upper swing body 2. A cover body 9 for covering the left and right sides of the seat attachment body 20 and the engine 8 is attached, and a portion of the cover body 9 facing the engine 8 can be freely opened and closed, and the starting electric motor 12, the generator 13, etc. of the engine 8 are inspected. Seat mounting body 20 A device mounting structure of the upper rotating body in the hydraulic shovel, characterized in that is positioned in the opening of the rear face downward.

According to the first aspect of the invention, the engine 8 is covered with the cover body 9 and the seat mounting body 20, and the inspection parts of the starting motor 12, the generator 13, etc. of the engine 8 are located below the rear portion of the seat mounting body 20. Since it is located at the opening portion of the seat mounting body 20, the starting electric motor 1 is opened from the opening portion 55 for inspection of the seat mounting body 20.
2. It is possible to visually check the inspection parts such as the generator 13.

Thus, by moving the seat 7 to open the inspection opening 55, the starting electric motor 12 and the generator 13 can be easily inspected from the inspection opening 55.

Therefore, the seat 7 and the engine 8 can be mounted close to each other on the upper revolving superstructure 2 to make the upper revolving superstructure 2 small, and the starting motor 12, the generator 13, etc. of the engine 8 can be easily inspected. Suitable for equipment mounting structure in a small hydraulic excavator.

A second aspect of the invention is to mount the seat mounting body 20 of the first aspect of the invention to the upper swing body 2 via the mounting frame body 60, so that the rear upper surface of the seat mounting body 20 has a large canopy mounting body 21. And, this canopy mounting body 21
2 is a device mounting structure for an upper revolving structure in a hydraulic excavator in which a column 73 of the canopy 10 is mounted.

According to the second aspect of the invention, the canopy 10 can be firmly attached, and the column 73 of the canopy 10 does not interfere with the inspection of the engine.

A third aspect of the present invention is a device mounting structure for an upper revolving structure in a hydraulic excavator in which a tool box 56 is detachably attached to the inspection opening 55 in the first and second aspects.

According to the third aspect of the invention, the inspection opening 55 can be effectively used for mounting the tool box 56, and tools can be stored in the tool box 56, which is very convenient.

In a fourth aspect of the present invention, a seat mounting plate 57 for covering the inspection opening 55 is mounted on the upper surface of the seat mounting body 20 in each invention, and the seat 7 is mounted on the seat mounting plate 57. It is a device mounting structure.

According to the fourth aspect of the present invention, since the inspection opening 55 is covered with the seat mounting plate 57, the seat 7 has the inspection opening 55.
The ordinary seat 7 can be used without a special shape that covers the seat.

In a fifth aspect of the invention, the mounting plate 57 of the fourth aspect of the invention is automatically extended from a substantially horizontal posture in which the inspection opening 55 is closed by a hinge 58 and a forward tilted posture in which the inspection opening 55 is opened. It is a device mounting structure of an upper revolving structure in a freely mounted hydraulic excavator.

According to the fifth invention, the seat 7 is rotated together with the seat mounting plate 57 to open the inspection opening 55,
Because it can be closed, its operation is easy.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
An upper revolving structure 2 is attached to the upper part so as to be freely rotatable. At the front end of the upper swing body 2, a boom 3, an arm 4a, and a bucket 4 are provided.
A boom type working machine 5 provided with b is attached so as to be vertically swingable. A steering member 6 is attached near the front of the upper swing body 2. A seat 7 is attached to the front-rear intermediate portion, an engine 8 is attached to the rear portion, and the engine 8 is covered with a cover body 9. 10 is a canopy.

As shown in FIG. 2, the engine 8 is attached to the rear of the upper revolving structure 2 in the left-right direction. The engine 8 includes a fuel injection pump 11, a starting electric motor 12, a generator 13, a fan 14 and the like. And a radiator 15 is attached to face the fan 14.

A seat mounting body 2 is provided near the rear of the upper swing body 2.
0 and the canopy mounting body 21 are mounted, and the seat 7 is mounted on the seat mounting body 20. A hydraulic oil tank 22 is attached to one side of the upper swing body 2 to the left and right of the seat 7, and a fuel tank 2 is attached to the left and right of the seat 7 to the other side.
3 is attached.

The hydraulic pump 24 driven by the engine 8 is located on one side of the upper swing body 2 on the left and right sides and is adjacent to the hydraulic oil tank 22, and a hydraulic oil filter 25 is mounted between the two.

As shown in FIGS. 2, 3, and 4, the cover body 9 includes a lower rear cover 30, a rear side cover 31, a rear side cover 32, an intermediate side cover 33, and a rear side cover 32. The intermediate other side part cover 34, the front one side lower cover 35, the front other side lower cover 36, and the inspection opening / closing door 37 are provided.

The one rear side cover 31 and the other rear side cover 32 cover the left and right side portions of the engine 8, and then the one side cover 31, the other rear side cover 32, and the seat mounting body 20. The canopy mount 21 and the canopy mounting body 21 form a substantially U-shape in plan view to form an engine storage chamber 38, and the engine storage chamber 38 can be opened and closed by an inspection opening / closing door 37.

The radiator 1 is attached to the rear side cover 32.
An air circulation port 39 is formed so as to oppose to No. 5.

The intermediate one side cover 33 covers the hydraulic oil tank 22 and one side of the seat 7, and the intermediate other side cover 3
4 covers the fuel tank 23 and the other side of the seat 7. The front one side lower cover 35, the front other side lower cover 36
Is integrated with one intermediate side cover 33 and the other intermediate side cover 34, respectively.

An opening 34a through which the cap 23a of the fuel tank 23 projects is formed in the intermediate other side lower cover 34, and the cap 23a can be detached from the opening 34a to replenish the fuel in the fuel tank 34. Is done.

The lid 4 of the oil inlet 40 of the hydraulic oil tank 22
1 and the hydraulic oil filter 25 are located in the engine storage chamber 38 as shown in FIGS. 5 and 6, and by opening the inspection opening / closing door 37, it is possible to easily perform the hydraulic oil supply and the hydraulic oil filter replacement work. There is.

Further, since the hydraulic oil tank 22, the hydraulic oil filter 25, and the hydraulic pump 24 are collectively located near the rear left and right sides of the upper swing body 2, their piping work and oil leak check work are easy. You can

As shown in FIG. 7, the seat mounting body 20 is
The left and right side plates 50, the lower front plate 51, the upper rear plate 52, and the intermediate horizontal plate 53 are provided with a substantially box-shaped body 54 whose lower and rear lower parts are open, and the front upper part is opened. Reference numeral 52a is bent rearward to form a canopy mount 21.

A central portion of the intermediate horizontal plate 53 is recessed, and a check opening 55 is formed in the recess 53a. A tool box 56 is inserted into the check opening 55, and the tool box 56 is inserted. The flange 56a contacts the upper surface of the opening edge of the inspection opening 55.

A seat mounting plate 57 is mounted on the upper part of the lower front plate 51 by a hinge 58 so as to be rotatable in the front-rear direction. The seat mounting plate 57 is attached to the peripheral edge portion 5 of the intermediate horizontal plate 53.
By contacting 3b, it becomes almost horizontal and inspection opening 55
Is closed and the seat mounting plate 57 is rotated forward, the inspection opening 55 is opened.

As shown in FIG. 2, the seat mounting body 20 is mounted on the upper swing body 2 via a mounting frame body 60, and the seat mounting body 20 is mounted on the front wall of the engine storage chamber 38 as shown in FIG. Is configured. The lower part of the upper rear plate 52 of the seat mounting body 20 is up to the intermediate lateral plate 53, and the lower part of the rear part of the seat mounting body 20 is open. Then, the starting electric motor 12 and the generator 13 of the engine 8 are projected to the open portion of the rear portion of the seat attachment body 20.

Because of this, the seat 7 together with the seat mounting plate 53 is pivoted forward about the hinge 58 as shown by the phantom line in FIG. 8, and the tool box 56 is removed in this state to open the inspection opening. From the part 55, the starting motor 12 and the generator 1
3 is visible. Therefore, the starting electric motor 12,
The generator 13 can be easily inspected from the inspection opening 55.

As shown in FIGS. 8 and 9, the mounting frame body 60 has a rear frame 64 which is substantially U-shaped by the left and right one side vertical portions 61, the horizontal portions 62, and the left and right other side vertical portions 63.
A substantially hook-shaped left and right one side frame 65 fixed to the left and right one side vertical portion 61 toward the front, and a substantially hook-shaped left and right other side frame 66 fixed to the left and right other side vertical portion 63 toward the front.
And a connecting frame 67 fixed to the lateral portion 65a of the left and right one side frame 65 and the lateral portion 66a of the left and right other side frame 66.

The left and right one vertical portion 61 and the left and right other vertical portion 63
Also, brackets 68 are fixed to the lower portions of the vertical portions 65b of the left and right one-side frames 65 and the vertical portions 66b of the left and right other-side frames 66, and each of the brackets 68 is attached to the upper revolving structure 2.
It is fixed by bolts to.

Then, the lower front plate 51 of the seat mounting body 20.
Is fixed to the vertical portion 65b of the left and right one side frame 65 and the vertical portion 66b of the left and right other side frame 66, and the intermediate horizontal plate 53 is fixed to the horizontal portion 65a of the left and right one side frame 65 and the horizontal portion 66a of the left and right other side frame 66. The left and right side plates 50 are attached to the attachment frame body 60 directly or via an attachment member.

The upper rear plate 52 is fixed to the lateral portion 62 of the rear frame 64 via the reinforcing plate 69, and the upper portion 52a of the upper rear plate 52 is firmly supported by the upper revolving structure 2 via the mounting frame body 60. The rigidity of the canopy mount 21 is high. The upper portion 52a of the upper rear plate 52
A plate 71 having a block 70 is attached to the block 70 with a bolt 72, and a column 73 is fixed to the block 70.
The canopy 10 with the roof 74 attached to the upper part of the pillar 73
There is.

Because of this, the canopy 10 can be firmly attached to the upper revolving structure 2, and the column 73 of the canopy 10 is attached to the upper part in the rear part of the seat 7 so that the starting electric motor 12 and the power generator can be generated as described above. The stanchions 73 are out of the way when inspecting the machine 13.

As shown in FIG. 2, the mounting frame body 6 is
The first, second, and third brackets 80, 81, and 82 are fixed to 0, and the rear other side part cover 3 is attached to the first bracket 80.
2 is attached to the second bracket 81 and the third bracket 82, and the intermediate one side cover 33 and the intermediate other side cover 34.
Are installed respectively.

[Brief description of drawings]

FIG. 1 is an overall front view of a hydraulic excavator.

FIG. 2 is a plan view of an upper swing body.

FIG. 3 is a front view of an upper swing body.

FIG. 4 is a rear view of the upper swing body.

FIG. 5 is a front view showing the arrangement of a hydraulic oil tank, a hydraulic oil filter, and a hydraulic pump.

FIG. 6 is a plan view showing an arrangement of a hydraulic oil tank, a hydraulic oil filter, and a hydraulic pump.

FIG. 7 is an exploded perspective view of a seat attachment body portion.

FIG. 8 is a vertical sectional view of a seat mounting portion.

FIG. 9 is a plan view of a mounting frame body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lower traveling body 2 ... Upper swing body 5 ... Boom type working machine 6 ... Steering member 7 ... Seat 8 ... Engine 9 ... Cover body 10 ... Canopy 12 ... Starting electric motor 13 ... Generator 20 ... Seat mount 21 ... Canopy Mounting body 55 ... Inspection opening 57 ... Seat mounting plate 58 ... Hinge 60 ... Mounting frame body 73 ... Strut

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhisa Sato 1-6 Minamishinozaki, Kazo-shi, Saitama Komatsu Zenoa Corporation Construction Machinery Division

Claims (5)

[Claims] 1. An upper swing body 2 is rotatably attached to a lower traveling body 1, a boom type working machine 5 is attached to a front end portion of the upper swing body 2, and a steering member 6 is provided near a front portion of the upper swing body 2. A hydraulic excavator in which a seat 7 is attached to the front-rear intermediate portion and an engine 8 is attached to the rear portion, and in the front-rear intermediate portion of the upper revolving structure 2, there is an inspection opening 55 on the upper surface and a rear portion of the upper portion is a substantially box-shaped opening. -Shaped seat mounting body 20 is mounted, the seat 7 is mounted on the seat mounting body 20 so as to close the inspection opening 55, and a cover body that covers the left and right sides of the seat mounting body 20 and the engine 8 is mounted on the upper swing body 2. 9 is attached, and the portion of the cover body 9 facing the engine 8 can be freely opened and closed, and the inspection parts of the starting motor 12, the generator 13, etc. of the engine 8 are positioned in the opening below the rear surface of the seat attachment body 20. Characterized by Device mounting structure for the upper revolving structure in a hydraulic excavator. 2. The seat mounting body 20 is attached to the mounting frame body 6.
The canopy mounting body 21 having a large rigidity is provided on the rear upper surface of the seat mounting body 20 by mounting the canopy mounting body 21 via the support rod 73 of the canopy 10 according to claim 1. Device mounting structure for upper revolving structure in hydraulic excavator. 3. The equipment mounting structure for an upper revolving structure in a hydraulic excavator according to claim 1, wherein a tool box 56 is removably attached to the inspection opening 55. 4. The hydraulic excavator according to claim 1, 2 or 3, wherein a seat mounting plate 57 that covers the inspection opening 55 is mounted on the upper surface of the seat mounting body 20, and the seat 7 is mounted on the seat mounting plate 57. Device mounting structure for upper revolving structure. 5. The mounting plate 57 is automatically attached by a hinge 58 between a substantially horizontal posture in which the inspection opening 55 is closed and a forwardly inclined posture in which the inspection opening 55 is opened. Equipment mounting structure for upper revolving structure in hydraulic excavator.