JP2000291063A - Swiveling construction machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To facilitate the work of mounting a turning device and the work of connecting a hydraulic hose and the like, and improve the workability of assembly. SOLUTION: In order to support a support member, a bracket 10 made of a separate member is attached to the horizontal plate 9 as a retrofit to the horizontal plate 9 provided integrally with the revolving frame 3. Thus, in a state before the bracket 10 is mounted, the suspended turning device 22 can be lowered straight down to the mounting position of the bottom plate 4, and the assembling workability can be improved. In addition, since the horizontal plate 9 is provided with a cutout for forming a hose insertion hole with the bracket 10 when the bracket 10 is mounted, the horizontal plate 9 is not mounted before the bracket 10 is mounted. Hydraulic hose 2 in notch
5 can easily pass through.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing type construction machine such as a hydraulic shovel, and more particularly to a swing type construction machine capable of turning with a small turning radius.

[0002]

2. Description of the Related Art In general, a hydraulic shovel or the like is known as a swing type construction machine. This hydraulic shovel includes a lower traveling body and an upper revolving body that is rotatably provided on the lower traveling body. ing.

[0003] Hydraulic excavators also include a small backward turning type.
2. Description of the Related Art There is a swing type hydraulic excavator called an ultra-small swing type (hereinafter, simply referred to as a small swing type hydraulic excavator). The rear portion of the upper revolving structure is formed in a substantially circular shape centered on the center of revolving so that when the upper revolving structure turns, at least the rear portion of the upper revolving structure where the counterweight is located is generally fit within the vehicle width. Have been. With this configuration, the rear part of the upper revolving structure, which is difficult to see from the driver's seat, can be turned substantially within the vehicle width, thereby enhancing safety during work.

[0004] Here, an upper revolving structure used in the above-described small-slewing hydraulic excavator will be described. The upper revolving structure is provided with a working device on a front side and a counter frame mounted on a rear end at a counter weight. A roof member provided on the revolving frame and covering at least the upper side of the driver's seat with a roof, and mounted on the revolving frame in a horizontal position extending leftward and rightward on the revolving frame positioned in front of the counterweight. An engine and a support member provided on the rear side of the revolving frame so as to straddle the engine and support the roof member.

[0005] The revolving frame includes a bottom plate formed of a flat plate, a pair of left and right vertical plates which are erected upward from the bottom plate and extend forward and rearward. And a horizontal plate extending upward from the bottom plate and extending leftward and rightward.

A turning device for turning the upper turning body is disposed on the bottom plate of the turning frame near the turning center, and the turning device is constituted by a hydraulic motor, a speed reducer, a pinion gear, and the like. .

Further, a pedestal portion is provided integrally with the horizontal plate of the revolving frame, the pedestal portion projecting forward by bending the upper end side into an L-shaped cross section or by welding a plate of another member. Supports a support member that supports the roof member.

On the other hand, in the small-swing hydraulic excavator, since the upper swing body (swing frame) is small, the handling of the hydraulic hose and the like becomes cramped. In particular, since many hydraulic hoses extend to the working device, the front part of the turning frame is crowded by the hydraulic hoses extending to the working device. For this reason, the turning device is arranged near the rear side of the turning frame, avoiding the front portion of the turning frame that is crowded by the hydraulic hose.

[0009]

However, the small swing type hydraulic excavator according to the prior art described above has a small upper swing body, which makes the layout of each device cramped, and furthermore, the swing apparatus is arranged near the rear side of the swing frame. Therefore, the horizontal plate of the turning frame is disposed near the rear side of the turning device. As a result, the pedestal portion protruding forward from the upper end side of the horizontal plate covers a part of the upper portion of the turning device, so when the lowered turning device is to be lowered and installed on the bottom plate, There is a problem that the pedestal portion hinders the swing device from being able to be lowered straight down while being hung, resulting in a reduction in assembly workability.

An engine or the like provided with a hydraulic pump is disposed behind the horizontal plate, and it is necessary to pass a hydraulic hose or the like connected to the hydraulic pump through the horizontal plate.

Therefore, in the prior art, a hose insertion hole is formed in the horizontal plate, and a hydraulic hose or the like is passed through the hose insertion hole. However, in this case, it is necessary to pass a hydraulic hose through the hose insertion hole in advance, and a hydraulic pump, a multiple valve device including a plurality of control valves, etc. are mounted on the turning frame, and then the hydraulic hose is connected to these. Must-have. For this reason, the connection work of the hydraulic hose and the like must be performed in a cramped place, and there is a problem that the workability is reduced.

Therefore, it is conceivable to provide a cutout that opens upward in the horizontal plate instead of the hose insertion hole. In this case, however, the cutout reduces the strength of the horizontal plate. It is necessary to reinforce the support member to be attached. However, when the support member is reinforced, the weight of the support member increases, and there is a problem that handling during assembly is difficult.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a work for mounting a turning device,
It is an object of the present invention to provide a swivel type construction machine capable of facilitating connection work of a hydraulic hose and the like and improving assembling workability.

[0014]

A revolving construction machine according to the present invention comprises a lower traveling body and an upper revolving body which is rotatably provided on the lower traveling body. A turning frame provided with a working device and having a counterweight mounted on a rear end thereof, a roof member provided on the turning frame and covering at least a driver's seat above a roof, and the turning member positioned in front of the counterweight. The engine includes a horizontally mounted engine extending leftward and rightward on a frame, and a support member provided on the rear side of the revolving frame to straddle the engine and supporting the roof member.

[0015] In order to solve the above-mentioned problems,
A feature of the structure adopted by the invention according to claim 1 is that the revolving frame has a bottom plate formed of a flat plate material, and a pair of left and right standing upright from the bottom plate and extending forward and backward. A vertical plate, and a horizontal plate that is located on the front side of the engine and is erected upward from the bottom plate and extends leftward and rightward. The horizontal plate is formed by a member separate from the horizontal plate. A bracket that extends leftward and rightward along the horizontal plate and supports the support member is attached.

With this configuration, when mounting equipment such as an engine, a tank, a control valve, and a swivel device on the revolving frame, the mounting work of these devices before mounting the bracket on the horizontal plate of the revolving frame. Is performed, the bracket does not become an obstacle when lowering each of the suspended devices, and the assembling work can be performed smoothly.

According to the second aspect of the present invention, the horizontal plate of the revolving frame is provided with a cutout for forming a hose insertion hole through which a hydraulic hose passes with the bracket attached to the horizontal plate.

With this configuration, before the bracket is mounted on the horizontal plate, the cutout formed in the horizontal plate is open upward, so that the hydraulic hose can be easily inserted into the cutout from above. The hydraulic device can be mounted on the turning frame with the hydraulic hose connected to the hydraulic device in advance.

According to the third aspect of the present invention, the bracket is
The cross section is substantially L-shaped by a vertical surface portion attached to the horizontal plate and a horizontal surface portion to which the front leg of the support member is attached.

With this configuration, when the vertical surface of the bracket is attached to the horizontal plate, the horizontal surface extends in the horizontal direction, so that the front leg of the support member can be supported by the horizontal surface.

According to the fourth aspect of the present invention, a turning device is provided on the bottom plate of the turning frame at a position near the turning center, and the horizontal plate of the turning frame extends in the left and right directions near the rear side of the turning device. The bracket is mounted such that the lateral surface portion covers a part of the upper part of the turning device.

With this configuration, even when the horizontal plate of the revolving frame is arranged near the revolving device, the revolving device that has been lifted can be lowered straight down before the bracket is mounted on the horizontal plate. In addition, the turning device can be easily mounted on the turning frame. Then, when the turning device is mounted on the turning frame, the bracket is attached to the horizontal plate, so that the lateral surface portion of the bracket projects to the front side, and the front surface of the support member can be supported by the lateral surface portion.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A small swing hydraulic excavator will be described as an example of a swing construction machine according to an embodiment of the present invention, and will be described in detail with reference to FIGS. In the present embodiment, “front, rear” and “left, right” are used as meaning directions or positions viewed from an operator sitting in a driver's seat.

Reference numeral 1 denotes a lower traveling body, and 2 denotes an upper revolving body mounted on the lower traveling body 1 so as to be pivotable.
Is generally constituted by a swing frame 3, a driver's seat 15, a counterweight 17, an engine 18, a support member 26, a canopy 27, and the like, which will be described later.

Reference numeral 3 denotes a revolving frame constituting a base of the upper revolving unit 2. The revolving frame 3 is formed in a circular arc shape on the rear side by a flat plate material as shown in FIGS. 2, 3 and 4. A bottom plate 4, a pair of vertical plates 5 and 6, which are erected upward from the bottom plate 4 and extend frontward and rearward, on the left and right sides, and cover the front side of each of the vertical plates 5 and 6 from above. The vertical plates 5 and 6
An upper plate 7 provided on the upper end side of the base plate; a horizontal plate 9 erected upward from the bottom plate 4 and extending leftward and rightward across the vertical plates 5 and 6; Support member 2 described later
6 and a bracket 10 supporting the front leg 26B.

Reference numeral 4 denotes a bottom plate of the revolving frame 3.
Is formed in a circular shape whose front end is cut off substantially linearly in the left and right directions, and a lower support plate 4A, which is a part of a working device support bracket 8 to be described later, is provided at a substantially central portion of the front end. Has been extended.

Reference numeral 5 denotes a left vertical plate erected on the bottom plate 4. The vertical plate 5 extends from the lower support plate 4A of the bottom plate 4 to the rear side with an inclination to the left side, and bends at the rear side to the right side. It extends parallel to the vertical plate 6.

Numeral 6 denotes a right vertical plate erected on the bottom plate 4, and the vertical plate 6 is located at a position away from the center of rotation to the right side.
From the lower support plate 4A to the rear end.

Reference numeral 7 denotes a substantially triangular upper plate provided so as to cover the front sides of the left and right vertical plates 5 and 6 from above, and the upper plate 7 is welded to the vertical plates 5 and 6 or the like. Are fixed integrally by the fixing means. The front end of the upper plate 7 serves as an upper support plate 7A. The upper support plate 7A, together with the lower support plate 4A of the bottom plate 4, constitutes a working device support bracket 8 for supporting a working device 30 described later. are doing.

Reference numeral 9 denotes an upright horizontal plate located near the rear side of the bottom plate 4, and the horizontal plate 9 is formed by connecting a plurality of plate members in a longitudinal direction by welding to form a right vertical plate. 6 extends leftward and rightward across the left vertical plate 5. And
The horizontal plate 9 is welded to the bottom plate 4 and the vertical plates 5 and 6, respectively.
It has an integral structure with them. Also, the vertical plate 5 of the horizontal plate 9
As shown in FIG. 2 and FIG.
2, a bulging portion 9A bulging backward is provided, and a large rectangular cutout 9B having an open upper end is formed above the bulging portion 9A.

Here, the notch 9B is opened in a large rectangular shape to secure a space around the turning device 22 for handling the power tool. Furthermore, the notch 9
The left side of B constitutes a hose insertion hole 13 through which a hydraulic hose 25 passes together with a bracket 10 described later.

10 is formed by a member separate from the horizontal plate 9,
The bracket 10 is attached to the horizontal plate 9 and is a feature of the present embodiment. The bracket 10 includes a vertical surface portion 10A attached to the horizontal plate 9 and a horizontal surface portion 10B to which a front leg 26B of the support member 26 is attached. , Formed in a substantially L-shaped cross section extending rightward. As shown in FIG. 6, a closing plate 11 that closes a portion on the right side of a cutout 9 </ b> B formed in the horizontal plate 9 is attached to the bracket 10.

As described above, after the turning device 22 and the like are mounted on the turning frame 3, the bracket 10 is
A is attached to the upper end of the horizontal plate 9 by a plurality of bolts 12. As a result, the lateral surface portion 10B is
The support member 26 supports the front leg 26 </ b> B of the support member 26 by projecting forward from the horizontal plate 9 so as to cover an upper part. The bracket 10 (closing plate 11) closes the opening side of the cutout 9B of the horizontal plate 9 and forms a hose insertion hole 13 through which the hydraulic hose 25 passes between the cutout 9B and the cutout 9B.

Reference numeral 14 denotes a floor plate provided to cover the upper side of the revolving frame 3. Reference numeral 15 denotes a driver's seat provided on the floor plate 14. Around the driver's seat 15, the undercarriage 1 and the working device 3 are provided.
Operation levers 16A, 16B and the like for operating 0, 31 are provided.

Reference numeral 17 denotes a counterweight attached to the rear portion of the turning frame 3, and the outer periphery of the counterweight 17 is formed along an arc of a turning radius. The counterweight 17 balances the working devices 30 and 31.

An engine 18 is mounted on the turning frame 3 in front of the counterweight 17, and the engine 18 is mounted in a horizontal state extending left and right as shown in FIG. ing. Also, the engine 18 includes
A hydraulic pump 19 or the like that discharges pressure oil by being driven by the engine 18 is attached to the engine 18.
The radiator 2 is located on the opposite side of the hydraulic pump 19
0, an oil cooler 21 is provided.

Reference numeral 22 denotes a turning device mounted on the bottom plate 4 of the turning frame 3. The turning device 22 includes a hydraulic motor serving as a drive source, a speed reducer for reducing the rotation of the hydraulic motor, and a pinion meshing with the turning wheel. (Both are not shown) and the like, and revolves the upper revolving unit 2 with respect to the lower traveling unit 1. Further, the turning device 22 is located near the turning center O of the turning frame 3 at the left rear side so as to avoid a hydraulic hose (not shown) that supplies and discharges pressure oil to and from the working device 30 provided on the front side of the turning frame 3. It is attached to the bottom plate 4 at a position close to the side.

Reference numeral 23 denotes a multiple valve device including a plurality of control valves mounted on the turning frame 3.
It is provided at the right front portion opposite to the hydraulic pump 19 with respect to the turning device 22. In addition, a hydraulic oil tank 24 described below is disposed behind the multiple valve device 23.

Reference numeral 24 denotes a hydraulic oil tank which is mounted between the radiator 20 and the multiple valve device 23 and is mounted on the bottom plate 4 of the revolving frame 3.
It stores hydraulic oil to be supplied to the operating devices 30, 31 and the like, and includes a hydraulic pump 19, an oil cooler 21, a multiple valve device 2
3 and so on.

Are three hydraulic hoses connected between the hydraulic pump 19 and the multiple valve device 23. Each of the hydraulic hoses 25 is connected to the horizontal plate 9 of the revolving frame 3. Hose insertion hole 13 formed by bracket 10
Extends through.

Reference numeral 26 denotes a support member attached to the rear side of the revolving frame 3. The support member 26 is located above the engine 18 and extends leftward and rightward as shown in FIG. A front leg 26B extending from the mounting plate 26A to the front of the engine 18, a rear leg 26C extending from the right end of the mounting plate 26A to the rear of the engine 18, and a left leg of the engine 18 from the left end of the mounting plate 26A. It is roughly constituted by an extended left leg 26D. And
The support member 26 has a support plate 27A on which a support 27A of a canopy 27 is mounted, and a front leg 26B which is connected to the revolving frame 3.
Is attached to the bracket 10 provided on the rear leg 26.
C and the left leg 26D are attached to the bottom plate 4.

Reference numeral 27 denotes a canopy as a roof member provided so as to cover the upper part of the driver's seat 15.
Is roughly constituted by a column 27A and a canopy roof 27B serving as a roof mounted on the upper side of the column 27A, and the lower end side of the column 27A is mounted on a mounting plate 26A of the support member 26.

Reference numeral 28 denotes a skirt cover attached so as to surround the periphery of the turning frame 3, and 29 denotes an exterior cover which is located around the driver's seat 15 and covers the upper side of the turning frame 3.
The exterior cover 29 includes the engine 18, the radiator 20,
The multiple valve device 23 and the like are covered.

Reference numerals 30 and 31 denote two working devices provided in front of the hydraulic excavator. The working device 30 performs excavation work of earth and sand and the like. It is mounted so that it can rotate to the left and right. The working device 31 performs a work of discharging earth and sand, and is attached to a front portion of the lower traveling body 1 so as to be rotatable upward and downward.

The hydraulic excavator according to the present embodiment has the above-described configuration. Next, an assembling operation for mounting the engine 18, the turning device 22, the multiple valve device 23, and the like on the turning frame 3 will be described.

First, the turning frame 3 is set to a state before the bracket 10 is attached to the horizontal plate 9, and for example, the turning device 22 is lifted and mounted on the bottom plate 4. At this time, the turning device 2
Since the bracket 10 extending to the front side is not attached to the horizontal plate 9 located in the vicinity of the rear side of the base 2, the swinging device 22 can be lowered straight down to the mounting position of the bottom plate 4 while being lifted, The turning device 22 can be easily assembled. In addition, the notch 9B that opens greatly in the horizontal plate 9
Is formed, the positioning operation of the turning device 22 and the handling of a working tool such as a spanner can be easily performed.

Next, after the turning device 22 is mounted on the turning frame 3, the engine 18, the multiple valve device 23, etc., which are suspended in advance, are gradually lowered and mounted on the turning frame 3. At this time, the horizontal plate 9 forming the hose insertion hole 13
The notch 9B is opened upward, so that each hydraulic hose 25 is connected to the hydraulic pump 19 and the multiple valve device 23 attached to the engine 18 in advance even if the hydraulic pressure is applied to the notch 9B. The hose 25 can be passed through.

Then, the turning device 22 is attached to the turning frame 3,
After the engine 18 and the like have been assembled, the bracket 10
By mounting the hydraulic hoses, the hydraulic hoses 25 can be held in a state of being inserted through the hose insertion holes 13 as shown in FIG. Further, sufficient strength can be obtained by the bracket 10. Further, an excess opening of the notch 9B can be closed by the closing plate 11, so that hot air and noise from the engine 18 can be shut off.

As described above, according to the present embodiment, the bracket 10 for supporting the support member 26 is formed by a separate member on the horizontal plate 9 provided integrally with the revolving frame 3, and Engine 18 and swivel 2
2. After mounting the multiple valve device 23 and the like, the bracket 10 is attached to the horizontal plate 9 as a retrofit. This allows
In a state before the bracket 10 is attached, since the bracket 10 protrudes forward and has no obstruction, the lifted turning device 22 can be lowered straight down to the mounting position of the bottom plate 4, and the assembling workability can be improved. .

The horizontal plate 9 is provided with a notch 9B opening upward, and a bracket 10 is attached to the horizontal plate 9 to form a hose insertion hole 13 between the bracket 10 and the notch 9B. Therefore, in a state before the bracket 10 is attached, the hydraulic hose 25 and the like can be easily inserted into the cutout 9B constituting the hose insertion hole 13, and
The workability of routing the hydraulic hose 25 and electric wiring can be improved.

Further, by forming the bracket 10 as a member separate from the horizontal plate 9, the bracket 10 can be easily and easily mounted.
In addition, the bracket 10 can be processed with high precision, and the strength of the bracket 10 can be increased, and the bracket 10 can be formed in a complicated shape. From these facts, a part of the bracket 10 can be extended and used as a floor plate support for supporting the floor plate 14 and the like.

Further, since the bracket 10 is provided with the closing plate 11 for partially closing the cutout 9B of the horizontal plate 9, the cutout 9 can be obtained simply by attaching the bracket 10 to the horizontal plate 9.
The extra opening of B can be closed, and hot air and noise from the engine 18 can be easily and reliably shut off.

Although the embodiment has been described by taking as an example a hydraulic excavator using a canopy 27 having a canopy roof 27B that covers only above the driver's seat 15 as a roof member, the present invention is not limited to this. For example, as in a modified example shown in FIG.
The present invention may be applied to a hydraulic shovel using a cab box 41 that covers the right and upper sides.

[0054]

As described in detail above, according to the first aspect of the present invention, the revolving frame has a bottom plate formed of a flat plate material, and an upright standing from the bottom plate to extend forward and rearward. A left and right pair of vertical plates, and a horizontal plate that is located forward of the engine and is erected upward from the bottom plate and extends left and right. And a bracket that extends left and right along the horizontal plate and supports the support member. Therefore, when mounting devices such as an engine, a tank, a control valve, and a turning device on the revolving frame, the device was previously lifted by performing the mounting work of these devices before attaching the bracket to the horizontal plate of the revolving frame. The bracket does not become a hindrance when lowering each device, the assembling work can be performed smoothly, and the assembling workability can be improved.

According to the second aspect of the present invention, the horizontal plate of the revolving frame is provided with the cutout for forming the hose insertion hole through which the hydraulic hose passes with the bracket attached to the horizontal plate. Before the bracket is attached to the bracket, the notch formed in the horizontal plate is open to the upper side, and the hydraulic hose can be easily passed through this notch from the upper side.
The hydraulic device can be mounted on the turning frame in a state where the hydraulic hose is connected to the hydraulic device in advance, and the workability of mounting the hydraulic device and the workability of handling the hydraulic hose and the like can be improved.

According to the invention of claim 3, the bracket is
Since the vertical surface portion attached to the horizontal plate and the horizontal surface portion to which the front leg of the support member is attached are formed in a substantially L-shaped cross section, when the vertical surface portion of the bracket is attached to the horizontal plate, the horizontal surface portion is horizontally Since it extends, the front leg of the support member can be supported by the lateral surface portion, and the supporting strength can be increased.

According to the fourth aspect of the present invention, a turning device is provided on the bottom plate of the turning frame near the turning center, and the horizontal plate of the turning frame moves left and right in the vicinity of the rear side of the turning device. Since the bracket is extended so that the lateral surface portion covers a part of the upper part of the turning device, the bracket is attached to the horizontal plate even when the horizontal plate of the turning frame is arranged near the turning device. In the previous state, the suspended turning device can be lowered straight, the turning device can be easily mounted on the turning frame, and the workability can be improved. Then, when the turning device is mounted on the turning frame, the bracket is attached to the horizontal plate, so that the lateral surface portion of the bracket projects to the front side, and the front surface of the support member can be stably supported by the lateral surface portion. it can.

[Brief description of the drawings]

FIG. 1 is a front view showing a small turning hydraulic excavator applied to an embodiment of the present invention.

FIG. 2 is a plan view showing the turning frame in a state where an engine, a turning device, a multiple valve device, a hydraulic hose and the like are mounted.

FIG. 3 is an exploded perspective view of a revolving frame shown in a state before a bracket is attached to a horizontal plate.

FIG. 4 is an enlarged front view of a main part showing a state where an engine, a support member, a canopy, and the like are mounted on a turning frame.

FIG. 5 is an enlarged front view showing a horizontal plate, a bracket and the like in FIG. 4 in an enlarged manner.

FIG. 6 is an arrow VI-VI in FIG.
It is sectional drawing seen from the direction.

FIG. 7 is a front view showing a small turning hydraulic excavator according to a modification of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower traveling body 2 Upper revolving structure 3 Revolving frame 4 Bottom plate 5, 6 Vertical plate 9 Horizontal plate 9B Notch 10 Bracket 10A Vertical surface 10B Horizontal surface 13 Hose insertion hole 15 Driver's seat 17 Counterweight 18 Engine 22 Revolving device 25 Hydraulic hose 26 Support member 26B Front leg 27 Canopy (roof member) 27B Canopy roof (roof) 30, 31 Work equipment 41 Cab box (roof member) O Center of rotation

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Kazunori Yamada 650, Kandate-cho, Tsuchiura-shi, Ibaraki Hitachi Construction Machinery Co., Ltd. (72) Inventor Shinichiro Endo 1828 Shinji, Chiyoda-cho, Shinji-gun, Ibaraki Pref.

Claims (4)

[Claims] 1. An undercarriage and an upper revolving body rotatably provided on the undercarriage. The upper revolving body has a working device on the front side and a counterweight on a rear end. A revolving frame to be mounted, a roof member provided on the revolving frame and covering at least the upper side of a driver's seat by a roof; A revolving construction machine comprising an engine mounted in a state and a support member provided on the rear side of the revolving frame so as to straddle the engine and supporting the roof member, wherein the revolving frame has a flat plate shape. A pair of vertical plates on the left and right, which are erected upward from the bottom plate and extend frontward and rearward, and are located forward of the engine and upward from the bottom plate. A horizontal plate that is erected and extends left and right. The horizontal plate is formed by a separate member from the horizontal plate, and extends in the left and right directions along the horizontal plate to support the support member. A swiveling construction machine characterized by mounting a supporting bracket. 2. The swiveling construction according to claim 1, wherein the horizontal plate of the swivel frame is provided with a cutout portion that forms a hose insertion hole through which a hydraulic hose passes with the bracket attached to the horizontal plate. machine. 3. The bracket according to claim 1, wherein said bracket is formed in a substantially L-shaped cross section by a vertical surface portion attached to said horizontal plate and a horizontal surface portion to which a front leg of said support member is attached.
Or the revolving construction machine according to 2. 4. A turning device is provided on a bottom plate of the turning frame at a position near a turning center, and a horizontal plate of the turning frame extends in the left and right directions near a rear side of the turning device. The turning type construction machine according to claim 3, wherein the bracket is attached so that the lateral surface portion covers a part of the upper part of the turning device.