JPH0724449Y2 - Vertical position display device for earthworking machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is directed to the upper and lower sides of an earthworking machine that is vertically swingably attached to a vehicle body such as a soil stabilization machine working machine or a bulldozer ripper via a link mechanism. A device for displaying a position.

[Conventional technology]

The earthmoving work machine is mounted on the vehicle body so that it can swing up and down, and the earthworking machine is put into the soil to perform earthworking work. Freely mounted and mixed with the stabilizer scattered on the soil in the soil to stir the soil stabilizing machine to increase the strength of soft ground, and the ripper shank is attached to the vehicle body by the link mechanism so that it can swing up and down freely. A bulldozer with a ripper device that breaks rock mass by penetrating the ripper shank into the soil is known.

[Problems to be solved by the device]

In such a vehicle, the earthworking machine is rocked up and down and put in the soil for earthworking work, so the operator cannot see the vertical position of the earthworking machine just by looking at the earthworking machine.
It is not possible to judge how much the earthworking machine is buried in the soil, that is, the depth of the earthworking machine.

Then, this invention aims at providing the up-and-down position display apparatus of the earthworking machine which can solve the above-mentioned subject.

[Means and Actions for Solving the Problems]

One end of the arm is vertically swingably connected to a link mechanism that supports the work machine vertically swingably, and the other end of the arm is slidably faced to a guide groove of a scale plate provided on the vehicle body side. ,
It is a display device in which a scale is marked on the scale plate, whereby the vertical position of the working machine can be positioned by reading the position of the other end of the arm on the scale.

〔Example〕

As shown in FIG. 4, the track type traveling mechanism 2 is provided on both sides of the vehicle body 1.
Is provided, an engine (not shown) is mounted on the front of the vehicle body 1, a driver's seat 3 is provided in the middle of the vehicle body 1 to form a vehicle body 4, and a working mechanism 5 is provided on the rear portion of the vehicle body 1 with a link mechanism. 6 and a lift cylinder 7 are swingably provided to constitute a soil stabilization machine.

As shown in FIG. 5, the crawler belt type traveling mechanism 2 is provided with a substantially H-shaped main body 12 in which a pair of left and right track frames 10, 10 are connected by a lateral member 11, and a sprocket 13 is provided at a rear portion of each track frame 10. An idler 14 is provided in the front part, and a crawler belt 15 is wound around the sprocket 13 and the idler 14.

As shown in FIG. 5, the vehicle body 1 has a pair of left and right main frames 16, 16 connected by a front cross member 17, a rear cross member 18, and an intermediate cross member 19. 16 A mounting plate 20 is provided on the rear side surface, and a pair of left and right link mounting brackets 21 and 21 and a cylinder mounting bracket 2 are provided on the rear side.
2 is integrally formed in the vertical direction, and the mounting plate 20 is bolted to the lateral member 11 of the main body 12 to connect the main body 12 and the vehicle body 1.

Because of this, the main body 12 and the vehicle body 1 can be manufactured separately, easily and firmly connected, and easily divided.

As shown in FIGS. 6 and 7, the link mechanism 6 includes a pair of left and right lower links 24 supported by a pin 23 on a lower portion of a link mounting bracket 21 so as to be vertically swingable, and a link mounting bracket.
It is composed of a pair of left and right upper links 26 supported on the upper part of 21 by a pin 25 so as to be swingable up and down, and the respective lower links 24 and the tips of the upper links 26 are connected to a working machine support bracket 27 by pins 28 and 29. .

A horizontal member 30 is connected to the pair of left and right lower links 24, 24,
A piston 7a of a lift cylinder 7 is connected to a bracket 31 provided on the cross member 30 by a pin 32, and a cylinder tube 7b thereof is vertically swingably connected to the cylinder bracket 22 via a trunnion 33. When the piston 7a is expanded / contracted, the working machine support bracket 27 swings up and down via the link mechanism 6.

Upper and lower horizontal guide rods are provided above and below the working machine support bracket 27.
34, 35 are formed horizontally, and vertical sliding rods 36, 37 are fitted in the vertical and horizontal guide rods 34, 35 so as to be slidable left and right via push. A working machine body 39 is provided at both ends of 37 via a pair of left and right brackets 38, 38, and slides between a trunnion 40 provided on the working machine support bracket 27 and a supporting machine 41 provided on one bracket 38. When the piston 42a is expanded and contracted, the vertical sliding rods 36 and 37 slide left and right along the vertical and horizontal guide rods 34 and 35, and the working machine 5 moves left and right with respect to the vehicle body 1. It can be moved and offset left and right with respect to the center of the vehicle.

The working machine body 39 includes vertical plates 44 on the left and right sides of the main horizontal frame 43.
And a cover 45 is provided between the upper ends of the left and right vertical plates 44, 44, and a plurality of support frames 46 are fixed to the lower part of the main horizontal frame 43 downwardly at intervals in the left-right direction. As shown in the figure, a main shaft 49 is rotatably laterally supported between the upper parts of the left and right vertical plates 44, 44 through a bearing box 47 and a bearing 48, and a plurality of sprockets 50 provided on the horizontal shaft 49 and the above-mentioned each The endless link 52 extends across the idler 51 provided at the tip of the support frame 46.
The plate 53 attached to this endless link 52
In addition to the bit 54 is provided, a hydraulic motor 56 is provided at the tip of the transmission case 55 fixed to the bearing box 47,
A chain 59 is wound around a sprocket 57 provided on the output shaft 56a and a sprocket 58 provided on the main shaft 49. When the hydraulic motor 56 is driven, the main shaft 49 is driven and the endless link 52 is rotated by the sprocket 50. By the bit 54, the stabilizer B sprinkled on the soil A can be mixed and stirred in the soil.

In such a soil stabilization machine, the operator cannot visually know how much the working machine 5 is buried in the soil, and cannot determine to what depth the stabilizer has been mixed. Not preferable for work management.

Therefore, in the present invention, as shown in FIGS. 6 and 7, the vertical position indicating device C is attached across the upper link 26 of the link mechanism 6 and one of the link brackets 21.

As shown in FIGS. 1 and 2, the vertical position display device C is
An arm 61 rotatably supported on the upper link 26 via a mounting plate 60 and a mounting bracket on the link bracket 21.
The display plate 63 attached via 62 is provided.The mounting plate 60 is provided with a long hole 64 on one side and a cylindrical body 65 on the upper surface of the other side, and a bolt 66 is screwed into the mounting seat 67 of the upper link 26 from the long hole 64. The mounting plate 60 is attached so that its position can be adjusted freely, and the arm 61 is bent at one side.
A crank shape is formed by the 61a and the other side bent portion 61b, and the one side bent portion 61a is fitted in the cylindrical body 65 so as to be vertically rotatable.

In the display plate 63, an L-shaped piece 69 is connected to one side of the horizontal plate 68 in the width direction via a spacer 70 with bolts 71 in the longitudinal direction to form a guide groove 72. A display scale 73 is formed on each of the pieces 69, and a mounting bracket 62 fixed to the display plate 63 is bolted to the upper portion of the link bracket 21 so that the horizontal plate 68 is inclined with respect to the horizontal and the other side of the arm 61 is provided. The bent piece 61b slidably faces the guide groove 72.

Because of this, the lift cylinder 7 is used to link the link mechanism 6
When the working machine 5 is slid up and down through the upper link 26, the upper link 26 swings up and down, whereby the one-side bent piece 61a of the arm 61 is bent.
Swings up and down with the upper link 26, the arm 61
The other side bent piece 61b slides in the longitudinal direction along the guide groove 72 of the display plate 63, and by reading the scale 73 on which the other side bent piece 61b is located, the vertical height position of the working machine 5, that is, Since the depth of the working machine 5 in the soil can be known and the scale 73 corresponds to the horizontal plate 68 and the L-shaped piece 69 which are inclined with respect to the horizontal, the worker sitting in the driver's seat 3 of the vehicle body 1 Can see the scale 73, and an operator on the side surface of the vehicle body separated from the vehicle body 1 can see the scale 73.

The scale 73 is, for example, a zero scale at the portion where the other side bending piece 61b is located when the link mechanism 6 is swung upward and the working machine 5 is positioned above the soil, and the link mechanism 6 is swung downward. Then, when the working machine 5 is penetrated into the soil to the maximum depth, a scale having the maximum depth is provided at a portion where the other-side bent piece 61b is located, and a scale corresponding to the depth is provided between the scales.

In addition, the scale is zero when the work machine 5 is at the maximum upper position,
Hereafter, the scale may be sequentially increased, the maximum scale may be set at the uppermost position, and then the scale may be sequentially decreased.

[Effect of device]

When one end of the arm 61 swings up and down together with the link mechanism 6, the other end of the arm 61 slides along the guide groove 72 of the display plate 63.
The position of the other end of the arm 61 can be read on the scale 73, so that the vertical position of the earthworking machine can be known by the scale 73. You can know the depth in the soil.

[Brief description of drawings]

The drawing shows an embodiment of the present invention, FIG. 1 is an enlarged front view of a display device, FIG. 2 is a plan view thereof, FIG. 3 is an exploded perspective view thereof, and FIG. 4 is a front view of a soil stabilization machine. FIG. 5 is an exploded perspective view of the vehicle body portion, FIGS. 6, 7, and 8 are front views, plan views, right side views, and FIG. 9 of FIG.
FIG. 9 is a sectional view taken along line IX. 1 is a vehicle body, 5 is a working machine, 6 is a link mechanism, 61 is an arm,
63 is a display plate, 72 is a guide groove, and 73 is a scale.

Front page continuation (72) Inventor Toru Saito 1-19-11 Kyobashi, Chuo-ku, Tokyo Inside the Japan Hamaido stock company (72) Inventor Masayoshi Fujitani 1-19-11, Kyobashi, Chuo-ku, Tokyo Japan Tamaido stock company (72) Inventor Yuichi Yamamoto 1-3 Takara-cho, Kashiwazaki-shi, Niigata Komatsu Zoki Co., Ltd. Kashiwazaki factory

Claims (1)

[Scope of utility model registration request] 1. An earthworking machine is mounted on a vehicle body 1 so as to be vertically swingable by a link mechanism 6, and one end of an arm 61 is vertically swingably connected to the link mechanism 6, and the other end of the arm 61 is connected. Is slidably faced along a guide groove 72 of a display plate 63 provided on the vehicle body 1 side, and a scale 73 is marked on the sliding portion of the other end of the arm of the display plate 63. Vertical position display of the machine.