JPS631206Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a working depth indicator adjustment device for a tine device of a load stabilizer.

A road stabilizer is a working machine for stabilizing the road bed and roadbed.The front or rear part of the road stabilizer body is used for agitation processing such as digging, crushing, and mixing of the roadbed and roadbed. A tine device for performing this is mounted via a tine support device.

Generally, when a tine device mounted on a crawler-type road stabilizer is used to perform agitation treatment on a road, the road stabilizer is moved in sequence to cover a road several times the width of the effective crushing width of the tine device. A work style is adopted in which a stirring process is performed. In this case, the road stabilizer will be running astride the agitation surface that has already been subjected to agitation processing and is raised higher than the road surface, and the road surface that will be subjected to agitation processing from now on. The load stabilizer and tine device are in a two-dimensionally inclined state. Incidentally, a tilted tine device can be corrected by the tilt function attached to the tine support device, but in this state, the operator must visually judge the working depth of the tine device and the levelness of the tine device. It is difficult to set the tine device to a horizontal arbitrary reference working depth. Therefore, there is a need for a working depth indicating device that allows an operator to judge the working depth of the tine device and the levelness of the tine device and easily set the tine device to a horizontal standard working depth.

However, due to the structure of the tilt mechanism of the tine support device, the tine device of this type of crawler type load stabilizer has conventionally been marked with the working depth and levelness of the tine device, so that the tine device can be adjusted to a horizontal reference working depth. It is difficult to install a working depth indicating device that can be set to 300 degrees, and no crawler-type load stabilizer is equipped with such an indicating device.

This invention was made in view of the above points, and the purpose of this invention is to indicate the working depth and levelness of the tine device mounted on a crawler type load stabilizer, and to An object of the present invention is to provide a working depth adjusting device for a crawler type load stabilizer that allows an operator to set a tine device to a horizontal reference working depth in relation to depth and levelness.

This invention will be explained below with reference to an illustrated embodiment.

FIG. 1 is a side view of a crawler-type road stabilizer showing an embodiment of this invention. In the figure, 1 is a self-propelled road stabilizer body using wide crawlers 2, 2. At the rear of this body 1, A tine device 4 is installed via a tine support device 3 .

First, the tine support device 3 will be described in detail. The tine support device 3 includes a substantially U-shaped support arm 5 that is attached to the left and right sides of the fuselage 1 so as to extend rearward, and is connected to the support arm 5. The tilting section 6 has a tilting section 6, and a pair of support members 7, 7 that connect the tine device 4 to the tilting section 6.

A pair of left and right side arms 8 of the support arm 5,
8 has a substantially dogleg shape bent at the center, and its one end bases 8a, 8a are pivotally connected to the left and right frames of the fuselage 1, respectively.
A width plate 9 is provided between the moving rear end portions 8b and 8b on the other end side. In addition, the side arm 8,
The upper end surface of 8 is the guide surface 8 of the gauge rod 26, which will be described later.
c, 8c. A pair of left and right brackets 10, 10 are fixed to the rear end surface of the width plate 9, protruding upwardly and downwardly, and arcuate guide grooves 11 are provided at the tips of these brackets 10, 10.
a, 11a having retaining rings 11, 11 on top;
It is provided at a lower facing position.

The tilting section 6 includes a disk-shaped swing plate 12 with left and right sides cut off, and a slide plate 14 attached to the swing plate 12 in parallel via a connecting plate 13. Become. The tilting portion 6 is fitted into the guide grooves 11a, 11a, and is capable of tilting left and right with respect to the body 1. In addition, the swing plate 12
There are mounting pieces 12a, 12a at two places on the left and right, and a similar mounting piece 14a on the right end of the slide plate 14.
is provided. These mounting pieces 12a, 12a
A pair of tilting hydraulic cylinders 15, 15 as drive operation means are installed between the main body 1 and the body 1 located directly below the mounting pieces 12a, 12a.

On the other hand, near the front end of the tine cover 17 of the tine device 4, the pair of substantially C-shaped support members 7, 7 are provided.
is installed protrudingly. At the upper and lower positions of the front end portions of the support members 7, 7, engagement grooves 7a, 7a each having a U-shaped cross section are provided.
The slide plate 14 is supported between these engagement grooves 7a, 7a so as to be slidable in the horizontal direction. Further, the left support member 7 is provided with a mounting piece 7b, and this mounting piece 7
A shift hydraulic cylinder 1 serving as a driving operation means for shifting the tine device 4 in the width direction of the fuselage 1 is disposed between the mounting piece 14a of the slide plate 14 and the mounting piece 14a of the slide plate 14.
6 has been constructed. In addition, the above-mentioned tilt hydraulic cylinders 15, 15 and shift hydraulic cylinder 16
can be operated by an operation lever (not shown) provided near the driver's seat of the aircraft 1. and the allowable rotation angle of the tilting part 6 with respect to the support arm 5;
In other words, the tilt rotation angle of the tine device 4 with respect to the aircraft body 1 is determined by the tilt rotation angle of the tilting hydraulic cylinders 15, 15.
The angle is set by the stroke difference between the clockwise and counterclockwise directions, for example, by a stopper (not shown)
It is designed not to exceed 10°.

Next, the tine device 4 will be explained. The tine device 4 includes a tine cover 17 having a substantially half-cylindrical shape, a tine rotor 19 horizontally suspended within the tine cover 17 and having a large number of crushing blades 18 fixed thereon, and a drive motor 20 for rotationally driving the tine rotor 19. have. Furthermore, a slope meter 21 is provided upright on the tine cover 17 at a position that can be directly viewed from the operator in the driver's seat. This slope meter 21 is used to check whether the tine device 4 is horizontal, and has a scale corresponding to the tilt rotation angle of the tine device 4 described above, with the center of the display surface 22 being zero, and a certain interval left and right. It is engraved. This display surface 22 is oriented in the forward direction of the aircraft 1, and the pointer 22a of the display surface 22 is directed toward the tine device 4.
The scale is configured to indicate a scale corresponding to the tilt rotation angle.

Next, the working depth indicator devices 23, 23 installed upright on the left and right sides of the rear of the driver's seat will be explained. The working depth marking devices 23, 23 are mounted on the left and right pillars at the rear of the driver's seat with brackets 24,
A first gage plate 25 in the form of a longitudinal strip attached via a gauge plate 24, a gage rod 26 that is moved up and down along the front surface of the first gage plate 25, and a gage rod 26 at two locations above and below the front surface of the holding plate 25. Fittings 27, 27 that are attached and allow the gauge rod 26 to pass through and hold it.
and a second gauge plate 28 formed facing the left and right sides of the fuselage 1 downward from the bracket 24 located below.

A first scale plate 29 is formed on the upper half of the front surface of the first gauge plate 25, and this first scale plate 29 has scales carved at regular intervals from the center in the vertical direction. ing. The fixtures 27, 27 that hold the gauge rod 26 include a half-cylindrical gauge rod support portion 27a having an inner peripheral surface that substantially matches the outer peripheral surface of the gauge rod 26, and both ends of this gauge rod support portion 27a. The mounting parts 27b, 27b are formed so as to protrude from the diameter extension of the gauge rod support part 27, and the mounting parts 27b, 2
It is bolted to the front surface of the first gauge plate 25 through the mounting hole 7b. On the other hand, the gauge rod 26
A guide surface 8c of the side arm 8 is provided at the lower end of the side arm 8.
A caster 30 is attached to be supported above, and one side of a lower scale indicator 31 in the shape of a quadrilateral closed loop is fixed to the upper position of the caster 30. The lower scale indicator 31 is located on a horizontal plane perpendicular to the axial direction of the gauge rod 26 so as to surround the second gauge plate 28 . Further, on the outer surface of the second gauge plate 28, a second scale plate 32 is engraved with scales equivalent to those of the first scale plate 29.
is formed. The upper end surface of the gauge rod 26 is connected to the upper scale indicator 33 of the first scale plate 29.
The scale value of the first scale plate 29 indicated by the upper scale indicator 33 and the scale value of the second scale plate 32 indicated by the lower scale indicator 31 are the same value. It is composed of Therefore, the seventh
As shown in FIG. A, in a state where the tine device 4 is lifted in an overhanging manner with respect to the machine body 1, that is, in a state where the tine device 4 is located at the upper limit position, the upper scale indicator 33 and the lower scale indicator 31 are each first
and point R on the upper scale of the second scale plate 29, 32, and when the crushing blade 18 of the tine device 4 is positioned in contact with the road surface as shown in FIG. 7B, the upper scale Indicator 33 and lower scale indicator 31
indicates the Q point indicating zero on the first and second scale plates 29 and 32, respectively, and further moves the tine device 4 to a predetermined processing depth D as the lower limit position, as shown in FIG. 7C. In the positioned state, the upper scale indicator 33
The lower scale indicating section 31 is configured to indicate the P point on the lower scale of the first and second scale plates 29 and 32, respectively. However, point P on this lower scale is set, for example, to 60 cm, which is the maximum layer thickness of the road bed layer.

As shown in FIG. 7, the movement amount ΔH of the tine device 4 when the tine device 4 moves from the upper limit position to the lower limit position of the working depth D, and the upper scale indicator 3
3 and the movement amount Δh of the lower scale indicator 31 from point P to point R is expressed by the following equation.

Δh=l[sin(θ ₁ +θ)+{cosθ ₁ −cos(θ ₁ + ₁ θ)}tanθ−sinθ ₁ ] ΔH=L{sin(θ ₀ +θ)−sinθ ₀ } Here, θ is the side The rotation angle of the arm 8, θ ₁ is the angle formed between the side arm 8 and the horizontal plane when the tine device 4 is located at the lower limit position, and θ ₀ is the center of the base 8a of the side arm 8 and the tine rotor rotation axis 19. 0 and the horizontal plane, l is the length from the base 8a to the caster 30, and L is the length from the base 8a to the center 0 of the tine rotor rotation axis 19.

Next, the operation of the above configuration will be explained.

First, when the tine device 4 is not used, the pair of tilting hydraulic cylinders 15, 15 are uniformly extended and the tine device 4 is lifted counterclockwise in the drawing as shown in FIGS. 1 and 7A, and the aircraft is The tine device 4 is held in an overhanging manner relative to the tine device 1. In this state, the gauge rod 26 is pushed up to the upper limit as the side arms 8, 8 rise, and the upper scale indicator 33 is set at the R point of the first scale plate 29, or the lower scale indicator 31 is set at the second The R point on the scale plate 32 is indicated respectively.

On the other hand, when performing processing work on a leveled surface using the tine device 4, the above-mentioned tilting hydraulic cylinder 1
5 and 15 are uniformly contracted, the tine device 4 is lowered onto the road from the above-mentioned held position, and in the contact state where the crushing blade 18 of the tine device 4 is in contact with the leveled surface as shown in FIG. 7B, The upper scale indicating section 33 corresponds to the Q point (zero point) of the first scale plate 29 and the lower scale indicating section 31
respectively indicate the Q point (zero point) of the second scale plate 32. Furthermore, as shown in FIG.
indicates point P on the first scale plate 29, or the lower scale indicating section 31 indicates point P on the second scale plate 32, respectively.

Furthermore, when performing treatment work on uneven ground using the tine device 4, the machine body 1 must run astride the stirring surface that has already been treated and is raised up high, and the surface to which the treatment work is to be performed. Therefore, the aircraft 1 is always in a two-dimensionally inclined state. Therefore,
In order to obtain a predetermined processing depth D, the tilting hydraulic cylinders 15, 15 are operated from the exercise seat with different strokes to correct the inclination of the tine device 4 relative to the machine body 1. It is necessary to tilt it in the direction of arrow I. In this state, as described above, the upper scale indicator 33 and the lower scale indicator 3
1 indicates point P on the first scale plate 29 and point P on the second scale plate 32, and the levelness of the tine device 4 is determined by the operator based on the indication on the slope meter 21. Tilt hydraulic cylinder 1
This can be maintained by adjusting the stroke difference between 5 and 15, so even if the machine body 1 is tilted, the tine device 4 is corrected by the tilt, and the ground is always treated at the horizontal standard work treatment depth D. be able to.

In this way, the working depth indicators 23, 23 are integrated with the machine body 1, and as the side arms 8, 8 rotate, the gauge rods 26, 23 of the working depth indicators 23, 23,
By moving the tine device 26 up and down, the height positional relationship of the tine device 4 with respect to the machine body 1 and the working depth can be indicated. Furthermore, even if the machine body 1 is tilted on uneven ground, the operator can easily keep the tine device 4 horizontal with respect to the ground by the indication of the slope meter 21 attached to the tine device 4.

Note that the operator can immediately determine the position or working depth of the tine device 4 based on the indicated value of the upper scale indicator 33 on the first scale plate 29, and can also provide work guidance from the side of the machine body 1. The instructor can immediately determine the tine device 4 or the working depth based on the indicated value of the lower scale indicator 31 on the second scale plate 32.

As explained above, the working depth indicating device for a crawler-type load stabilizer according to this invention consists of a longitudinal strip-shaped gauge plate that is attached to the machine body with the vertical direction as the longitudinal direction, and a gauge plate on the left and right sides that is pivoted to the machine body. It consists of a gauge rod that is movable up and down along the gauge plate in conjunction with the vertical movement of the part arm, and a scale is formed along the vertical direction on either the gauge plate or the gauge rod, and the other is equipped with a working depth indicator for the tine device in which a scale indicator is formed to indicate the scale corresponding to the height position of the tine device, and a slope meter to indicate the levelness of the tine device. With this configuration, the height position and working depth of the tine device relative to the machine body can be indicated. In addition, a slope meter 21 is provided in the tine device 4 to constantly indicate the levelness of the tine shaft, and the left and right telescopic drive means 15, 15 are operated to lengthen and shorten in opposite directions to tilt the rocking plate 12 left and right. By operating it, the left and right angle of the tine device 4 with respect to the machine body 1 can be adjusted, and even when the machine body 1 rides on sloped ground or between leveled and uneven ground and tilts left and right, the tine axis can be kept horizontal. It is possible to adjust the Therefore, even when the machine body 1 is tilted to the left or right, the tine device can be set at a horizontal reference working depth, and the processing work by the tine device can be performed accurately and quickly. In addition, the horizontal adjustment mechanism for this purpose is made by rotating the disc-shaped swing plate 12 within the arc-shaped guide groove 11a, so that accurate fine adjustment of the horizontality is possible. There are no problems such as the tine shaft sometimes shifting up or down or back and forth.

In addition, in this invention, the working depth indicator is attached to a first gauge plate in the form of a longitudinal strip, which faces the front and back direction of the load stabilizer body and is attached to the body with the vertical direction as the longitudinal direction, and a first gauge plate that is different from the first gauge plate. a second gauge plate in the form of a longitudinal strip attached to the fuselage with the vertical direction as the longitudinal direction; If the scale is formed on the front side of the plate and the gauge rod is formed with a scale indicating part that indicates the scale formed on the outer surface of the second gauge plate in accordance with the height position of the side arm. , the operator can confirm the position and working depth of the tine device by the indicated value on the scale of the first gauge plate, and the instructor who instructs the work on the side of the machine can check the indicated value on the scale of the second gauge plate. There is an effect that the position of the tine device and the working depth can be similarly confirmed by the indicated value.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a working depth adjustment device for a load stabilizer according to an embodiment of this invention, Fig. 2 is an exploded perspective view showing a tine support device and a tine device, and Fig. 3 is a front view of the aircraft. Front view of the working depth indicator and slope meter viewed from above, Figure 4A
Figure 4B is an enlarged side view of the working depth indicator.
is an enlarged front view of the marking device, FIG. 5 is an enlarged perspective view of the marking device, FIG. 6 is an explanatory diagram showing the amount of movement of the tine device and the amount of movement of the scale indicator, and FIG. FIG. 3 is an explanatory diagram showing the operating state of the working depth indicator. 1... Body, 4... Tine device, 8... Side arm, 8c... Guide surface, 21... Slope meter, 23, 23... Working depth indicator, 26... Guide rod, 29... 1st scale plate, 32...2nd scale plate, 31...lower scale indicator, 33...upper scale indicator.

Claims (1)

[Claims for Utility Model Registration] (1) One end is a base that pivots to the left and right sides of the load stabilizer body 1, and the other end extends forward or backward of the body so as to be able to move up and down about the base. Left and right side arms 8, 8 serving as moving side ends, and a retaining ring 11 provided between the moving ends of the left and right side arms 8, 8 and having an arcuate guide groove 11a formed on its inner surface. , a disk-shaped swing plate 12 that is swingably inserted into the guide groove 11a of the retaining ring 11, and the swing plate 12.
a tine device 4 connected to the rocking plate 12 and swinging together with the rocking plate 12; a pair of left and right telescopic driving means 15 that are interposed between the rocking plate 12 and the fuselage 1 and telescopically operate on the left and right sides respectively; 15 and a driving operation means for vertically moving the left and right side frames 8, 8 and for tilting the rocking plate 12 left and right, and is further attached to the fuselage 1 with the vertical direction as the longitudinal direction. It consists of longitudinal strip-shaped gauge plates 25, 28 and a gauge rod 26 which is movable up and down along the gauge plate in conjunction with the vertical movement of the left and right side arms 8, 8. A working depth indicator for the tine device, wherein a scale is formed along the vertical direction on one of the rods, and a scale indicator is formed on the other side to indicate the scale according to the height position of the tine device. 23; and a slope meter 21 provided on the tine device 4 to indicate the horizontality of the tine shaft. (2) The above-mentioned working depth marking device has a first gauge plate in the form of a longitudinal strip attached to the load stabilizer body facing in the front-rear direction and with the vertical direction as the longitudinal direction, and a first gauge plate in a direction different from the first gauge plate. a second gauge plate in the form of a longitudinal strip attached to the fuselage with its longitudinal direction facing the vertical direction; and the first gauge plate, which is movable up and down in conjunction with the vertical movement operation of the left and right side arms. A practical gauge rod comprising a scale formed on the front side of the gauge and a scale indicator formed on the scale indicating part that indicates the scale formed on the outer surface of the second gauge plate in accordance with the height position of the side arm. A working depth adjustment device for a crawler type load stabilizer according to claim 1 of the patent registration claim.