JPS6139003Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention connects the front and back of the peripheral wall frame that constitutes the outer peripheral wall of the turning table with a pair of left and right front-facing frames, and connects the front-back facing frame and the peripheral wall frame with a reinforcing frame. At the same time, an operating section step is provided on the upper side of each of these frames, and a rod for interlockingly connecting the valve for controlling the fluid pressure actuator near the rear of the rotating platform and the operating lever on the front edge side of the rotating platform is installed as described above. This invention relates to the structure of a rolling platform for a rolling work vehicle, which is arranged front and rear under a reinforcing frame.

In the rotating platform structure of this type of rotating work vehicle, the valve for controlling the actuator and the rod that connects the valve and the operating lever are installed within the vertical thickness of the rotating platform. Compared to a structure in which the rods are located on the step of the operating section, the operating space can be used more widely and effectively, and the inconvenience of valves and rods being damaged due to contact with other objects is avoided. It is useful in that it can be used.

However, in the conventional swing table structure, the above-mentioned peripheral wall frame, front-back frame, and reinforcing frame were all fixedly connected together, and the driving section step was installed above each of these frames. When it becomes necessary to inspect, assemble, or disassemble valves and rods, workers are forced to crawl into the narrow space under the swivel table to perform inconvenient work, and inspection work is performed while moving the operating levers. In some cases, there were inconveniences such as frequent movement up and down the processing table, or the need for two or more people to work together.

The present invention improves the connection structure of each of the frames that make up the swivel pedestal and the operation section steps, thereby making it possible to inspect, assemble, and disassemble valves and rods installed within the upper and lower thickness of the swivel pedestal. The purpose is to make it possible to easily perform this from above in a wide space.

In order to achieve the above object, the feature of the present invention is that, in the rotating platform structure of the rotating working vehicle, a reinforcing frame is provided below the driving section step and above the rod. The peripheral wall frame and the front and back frames are configured to be detachable via the seats provided on each of them, and the detachable reinforcing frame is integrally fixed to the driver step. It has the following effects.

In other words, the operation part step located above the valves and rods is made removable so that the valves and rods can be seen from above, and when doing the work, Since the reinforcing frame that gets in the way can also be removed together with the driver step, there is an advantage that work can be easily done from above in a large work space.

As mentioned above, when removing the driver step and reinforcing frame, rather than attaching and detaching them separately, they can be removed together as a single unit, making it easier to open the space under the driver step. This also simplifies the work and further improves workability.

Embodiments of the present invention will be described below with reference to the drawings.

A turning table 3 which can be driven and rotated around a vertical axis is attached to a traveling machine stand 2 equipped with a crawler traveling device 1, and an excavating work device 4 is installed at the left and right intermediate portions of the leading edge side of the turning table 3. At the same time, a driving unit 6 covered with a bonnet 5 is mounted on the rear side of the rotating machine base 3, and a control unit 7 is provided on one side of the left and right center with respect to the rotating machine base 3. An earth removal work device 8 is provided at the top to form a rolling type work vehicle.

The turning table 3 is constructed by connecting a pair of left and right front and rear frames 10, 10 to which the mounting stand 9 of the excavation work device 4 is connected, and surrounding wall frames 11, 11 on the front and rear thereof. At the same time, on the side opposite to the control section 7, reinforcing frames 12 are provided across one front-rear frame 10 and the adjacent front-rear peripheral wall frame 11, and spaced apart from each other in the front and rear. Welded and connected,
Then, on each of the other front-rear frame 10 and the adjacent front-rear peripheral wall frame 11, a bracket 1 is provided that extends toward the opposite frame side.
3... are connected by welding at a distance in the front and rear, and reinforcing frames 14, 14 are removably connected by bolts across the brackets 13, 13 serving as the seats of the left and right frames 10, 11, and, A driving step 16 on which a driver's seat 15 is integrally connected is integrally connected to the upper part of the reinforcing frames 14, 14.

The control unit 7 includes hydraulic motors M for the traveling device and the rolling platform, valves V for controlling the hydraulic cylinders 17 for excavation and soil removal, respectively, and , the operating lever 18... is placed on the front edge side of the rotating table, and the control valve V... is placed on the rear side of the rotating table.
The operation console 19 is attached to the operation console 19 on the lower side of the step 16 in the respective positions, and the operation console 19 is detachably attached to the bracket 20 connected to the other main frame 10 and the side wall frame 11 adjacent thereto. Along with the bolt connection, the operation lever 1
8... and the spool of the valve V are interlocked and connected by substantially straight rods 21 extending in the front-rear direction below the reinforcing frames 14, 14, and the longitudinal direction of the rods 21... A rod guide 22 is provided in the middle part, that is, the operation lever 18..., the valve V..., and the rod 21... are assembled to the operation table 19 to form the actuator unit A.
At the same time, the unit A is removably attached below the reinforcing frames 14, 14, which are integrally constructed and can be attached to and detached from the left and right front-to-back frames 10 and the front-to-back portions of the surrounding wall frame 11 located adjacent thereto. It is provided.

[Brief explanation of drawings]

The drawings show an embodiment of the rotating platform structure of the rotating working vehicle according to the present invention, and FIG. 1 is an overall side view of the working vehicle;
FIG. 2 is a cross-sectional view of the control section of the rotating platform, FIG. 3 is an exploded plan view of the rotating platform, and FIG. 4 is a perspective view of the operating steps. 3...Rolling stand, 10...Anteroposterior frame, 1
1... Peripheral wall frame, 13... Seat part, 14...
Reinforcement frame, 16... Driving step, 18...
Operation lever, 21... Rod, V... Control valve.

Claims (1)

[Scope of utility model registration request] Peripheral wall frame 1 that constitutes the outer peripheral wall of the turning table 3
1, a pair of left and right front and back frames 10,
10, and its front and rear facing frames 10, 10
A reinforcing frame 1 is provided between the frame 11 and the peripheral wall frame 11.
4 and 14, and an operating section step 16 is installed above each of these frames 10, 11, and 14.
, and furthermore, a rod 21 that interlocks and connects the valve V for controlling the fluid pressure actuator near the rear of the rotating table and the operating lever 18 on the front edge side of the rotating table,
In the rotating platform structure of a rotating working vehicle, which is arranged in front and rear under the reinforcing frame 14, the reinforcing frames 14, 14 located below the driver step 16 and above the rods 21... The reinforcing frame 1 is configured to be detachable through the receiving seats 13 provided on each of the peripheral wall frame 11 and the front-rear frame 10, and the reinforcing frame 1 is detachable.
4 and 14 are integrally fixed to a driver step 16.