JPH08158339A - Cutting device of freezed road surface - Google Patents

Abstract

PURPOSE: To cut grooves made on the surface of Eisbahn by a cutting blade, along toe breadthwise direction or the road and evenly keep the depth cut in the groove. CONSTITUTION: A docking frame 1 is connected to a chassis of a vehicle far civil works so as to be lowered by the own weight and supported on a road face by one leg gauge shoe 12 installed in the middle of the right and left sides. A main frame 2 is connected to the support device frames 13, 13 equipped at the front face side of the docking frame 1, by fitting of the guide shafts 23, 23 parallelly arranged at the right and left sides installed in the main frame to the guide holes opened on the support device frames 13, 13. The weight of main frame 2 is reduced by an pushing-up spring installed between the guide shafts 23, 23 and the support device frames 13, 13. A number of cutting blades 8,... are supported at the lower face side of the main frame 2 so as to circulate along a nearly horizontal face by endlessly rotating chain 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an ice burn when the snow accumulated on a road on which a vehicle travels is frozen and forms an ice burn on the road surface in a cold region where the temperature drops to below zero in winter. To prevent vehicle slip accidents caused by the tires of a vehicle traveling on the road slipping against the road surface iceburn, increase the friction coefficient between the tire and the road surface on the frozen surface of the road surface. The present invention relates to improvements in a frozen road surface cutting device that cuts and forms innumerable lateral grooves.

[0002]

2. Description of the Related Art In winter, when snow or snow melt accumulated on a road freezes, an infinite number of lateral grooves are formed on the surface of an ice burn on the road surface to prevent tire slip. Fig. 1 shows the freezing road surface cutting device.
As shown in FIG. 2 and FIG. 2, a supporting machine frame b is vertically movably mounted on the rear surface of a vehicle body a for civil engineering such as an excavator loader, and a linear spring material is mounted on the lower surface side on the rear end side thereof. , Which are wound in a coil shape, are attached side by side in parallel, and the wire rods of the springs c ...
By mounting the ..., the claws d that are parallel to each other when the vehicle body travels ...
There is a first mode in which the tip of the blade advances while being pressed against the ice barn of the road surface by the elasticity of the spring c ...

Further, as shown in FIGS. 3 and 4,
On the rear surface side of the vehicle body a for civil engineering such as a shovel loader, arms e, which project rearward, are mounted side by side so that the tip side can freely move up and down. A rotary disk f that rotates on a vertical shaft is supported on each projecting end and driven by hydraulic pressure introduced from a hydraulic device mounted on the vehicle a. Spring claw that elastically presses against
4 and the turntable f is tilted slightly backward as shown in FIG. 4, so that the surface of the ice barn is seen on the left half side of FIG. There is a second mode in which arc-shaped fine grooves are cut.

Further, as shown in FIG. 5, on the rear side of the vehicle body of the civil engineering vehicle a, a supporting machine frame h having a machine casing shape that is long in the left and right directions.
Is mounted so that it can be moved up and down, and a rotary shaft i extending in the left-right direction
Is rotatably supported so as to be driven and rotated by power such as hydraulic pressure of a hydraulic device mounted on the vehicle a, and cords j such as chains are attached to the rotation shaft i in parallel in the axial direction. A hammer-shaped cutting body k is mounted on the free end side of each, and the rotary shaft i is rotated to strike the surface of the ice barn of the road with the hammer-shaped cutting body k to form a depression. There is a third form that goes on.

[0005]

The above-mentioned conventional means is the same as the first means, and the groove formed forms a state parallel to the traveling direction of the vehicle a, so that the vehicle travels on the road. There is a problem in that the prevention of vehicle tire slippage is limited to the left and right directions, and there is almost no effect on the prevention of slip accidents due to braking. Also, the cutting work on the ice burn is usually done before dawn in the morning, but as the sun rises, the water melted by the sunlight does not flow out to the side ditch of the road but accumulates in the groove, There is a problem that water will float on the upper surface of the so that it will cause a slip.

According to the second means, the direction of the groove cut on the surface of the ice burn is the width direction of the road, so that the flow of the melted water toward the side groove is improved, but the work efficiency is improved. When the rotation speed of the turntable f is increased to achieve this, the spring claws g are swayed out by the centrifugal force, and the depth of the groove to be cut becomes shallow, so that the groove with an accurate depth is cut. There is a difficult problem.

Further, the third means has a problem that the recesses formed are intermittent, so that the braking effect is small, and the drainage of the melted water is poor, and the rotation speed of the rotary shaft i is low. Due to the change, the depth of the recess formed changes, which makes it difficult to form a uniform depth.

The present invention has been made in order to solve these problems occurring in the conventional means, and a cutting groove formed on the surface of an ice burn by a cutting blade,
Even if there is a slope or unevenness on the surface of the frozen ice ban on the road surface, the cutting blade is used to increase the work efficiency while making the direction along the width direction of the road so that the flow toward the ditch of the melted water is good. It is an object of the present invention to provide a new means for keeping the cutting depth of the cutting groove uniform even if the rotation speed of the cutting tool is increased.

[0009]

In the present invention, as means for achieving the above-mentioned object, a docking frame is connected to a vehicle body of a civil engineering vehicle so that the docking frame can descend freely by its own weight. Then, it is supported on the road surface by a one-legged gauge shoe provided in the middle of the left and right of it, and the main frame is arranged side by side on the support machine frame installed on the front side of this docking frame. The guide shaft and the guide hole formed in the supporting machine frame are connected to each other, and the load of the main frame is reduced by the spring member in the pushing direction provided between the guide shaft and the supporting machine frame. Frozen road surface cutting, characterized in that a number of cutting blades are erected on the lower surface side of the main frame so as to circulate and rotate along a substantially horizontal surface by a chain that rotates endlessly. It is intended to raise the location.

[0010]

According to the means of the present invention configured as described above, the docking frame 1 mounted on the tip of the arm m that is moved up and down by the hydraulic cylinder n provided on the vehicle body for civil engineering works releases the hydraulic pressure of the hydraulic cylinder n. By keeping it in this state, it becomes free-falling by its own weight, and the lower end side of the one-legged gauge shoe 12 provided in the left and right intermediate portions of the docking frame 1 is in a grounded state.

At this time, the main frame 2 for supporting the cutting blades 8 ...
The left and right guide shafts 23, 23 provided therein are fitted to the guide holes 15, 15 provided in the supporting machine frame 13, 13 projecting to the front of the docking frame 1 so as to freely move up and down, The guide shaft 23, 23 and the supporting frame 13,
With the springs 25 in the pushing-up direction provided between the blades 13 and 13, the load is reduced, and the blades descend freely, and the lower ends of the supporting cutting blades 8 ... It comes into contact with the surface (Fig. 1
2). And when the road surface is inclined to the left and right,
The docking frame 1 is a one-legged gauge shoe 12
By being supported with the lower end of the fulcrum as a fulcrum, it is tilted to the left and right with respect to the road surface, and the guide hole 1 of the supporting machine frame 13 provided in the docking frame 1
Due to the vertical sliding and tilting of the guide shafts 23, 23 relative to 5, 15, the main frame 2 is
With the posture parallel to the road surface, the lower ends of the many cutting blades 8 supported on the main frame 2 are brought into contact with the surface of the ice burn on the road surface with a substantially uniform contact pressure.

If the road surface has irregularities in the traveling direction of the vehicle body, as shown in FIGS. 23, 24 and 25,
Guide shafts 23, 23 for the aforementioned guide holes 15, 15.
By the raising and lowering operation of the main frame 2, the main frame 2 lifts up and down with respect to the docking frame 1 in a state where the multiple cutting blades 8 supported by the main frame 2 are grounded,
Following the unevenness and inclination of the road surface, the surface of the ice barn on the road surface is brought into contact with the surface of the ice burner with a substantially uniform contact pressure.

[0013]

Embodiments Next, embodiments will be described in detail with reference to the drawings. FIG. 6 is a plan view in which a part of the frozen road surface cutting device A according to the present invention is omitted, and FIG. 7 is a front view in which a part of the same device A is cut away, and FIG.
Is a partially cutaway side view of the same device A.
DESCRIPTION OF SYMBOLS 1 is a docking frame, 2 is a main frame, 3 is a guide frame, 4 ... is a rotating member that rotates along the guide frame 3, and 5 is a hydraulic motor that rotates and rotates the rotating member 4 along the guide frame 3. , 6 is the motor 5
A cutting blade supporting member, and 8 a cutting blade.

Further, in FIG. 8, as shown in FIGS. 1 and 4, m is a boom for mounting a bucket o which is provided on the front side of the vehicle body of the civil engineering vehicle a so as to be vertically rotatable by a hydraulic cylinder n. At the front end side, the assembly bracket p of the bucket o is installed so as to rotate in a desired posture via the link mechanism r that rotates by the operation of the hydraulic cylinder q.

The docking frame 1 has, at its upper end side, a bracket for mounting a bucket which can be mounted on the tip of a boom m which is mounted on a front surface side of a vehicle for civil engineering a which is rotatably and rotatably mounted by a hydraulic cylinder n. A hook-shaped connecting hitch 10, which can be suspended with respect to p, is provided, and a locking mechanism 11 for locking in a suspended state is provided.

Also, on the lower end side of the docking frame 1, one gauge shoe 12 is vertically movable in the left and right central portions and can be fixed to a protruding length adjusted as desired. It is installed.

On the front side of the docking frame 1, arm-shaped supporting machine frames 13 and 13 projecting forward are reinforced by reinforcing frames 14 and 14 provided on the upper side at intermediate positions in the vertical direction. They are installed so as to face each other in a pair on the left and right, and guide holes 15 and 15 in the shape of a fool hole are formed at their tip ends so as to vertically pass therethrough.

The main frame 2 comprises a pair of horizontal rods 20 and 20, a short vertical rod 21 and 21 in the front-rear direction, a reinforcing plate 22, and a rectangular frame whose main body is long in the left and right direction. Formed on the body. Then, in the portion near the center on the upper surface side, the guide hole 15 is provided in the portion corresponding to the guide holes 15 and 15 at the front end portions of the pair of left and right supporting machine frames 13 and 13 provided in the docking frame 1 described above. Cylindrical guide shafts 23, 23, which are loosely fitted into the shaft 15, are vertically installed in a pair in parallel on the left and right. These guide shafts 23, 23 are fitted in the guide holes 15, 15 so as to be vertically movable,
The collar portions 24, 24 provided at the upper end portion and the support machine frame 13 described above.
The coil-shaped spring member 25, which is provided between the spring 13 and the spring 13, is biased in the upward direction.

The spring pressure of the spring members 25, 25 is such that the main frame 2 is equipped with the guide frame 3, the rotating member 4, the hydraulic motor 5, the chain 6, the cutting claws 8 ... Then, a spring pressure supporting about 60% of the weight is used so that the main frame 2 is allowed to descend by its own weight in a state where the load of the main frame 2 is reduced, and the remaining load is applied to a large number of rotating members 4. (15 in the embodiment
The cutting blades 8 are respectively provided on the road surface and are pressed against the surface of the ice barn with a contact pressure of about 25 to 30 kg. Between the upper surface of the flange portion 24, 24 at the upper end of the guide shaft 23, 23 and the front surface of the docking frame 1, the guide shaft 23, 23
The restriction link 26 for restricting the movement of the is bridged.

The guide frame 3 is, as shown in FIG.
It is formed in an elliptical shape having a major axis in the left-right direction and is long in the left-right direction, and is supported on the lower surface side of the peripheral portion of the main body 2a of the main frame 2 via mounting members 30. The mounting members 30 ... Are arranged at intermediate portions of the guide frame 3 in the width direction.
Both the inner peripheral side 3a and the outer peripheral side 3b thereof are used.

As shown in FIG. 9, FIG. 10, and FIG. 11, the rotating members 4, ... Are flat when assembled and supported on the main body 2a of the main frame 2 via the guide frame 3 described above. The trapezoidal base plate 40 having a short side on the inner peripheral side 3a of the guide frame 3 and a long side on the outer peripheral side 3b of the guide frame 3, and the above-mentioned short side on the upper surface of the base plate 40. Bobbin-shaped pulleys 41 and 41 which are axially supported so as to be juxtaposed in parallel with each other at a narrow interval on the side, and the base plate 40.
The bobbin-shaped sheaves 42, 42 axially supported so as to be juxtaposed in parallel with each other on the long side of the upper surface of the base plate at wide intervals, and the bottom plate side of the base plate 40 so as to hang downward on the long side. The cutting blade mounting member 43 is formed by bending one half side downward of the intermediate portion inside and outside the base plate 40, and the grooves of the pulleys 41, 41 axially supported on the short side of the upper surface of the base plate 40 are formed. By fitting the grooves of the pulleys 42, 42 fitted to the inner peripheral side 3a of the guide frame 3 and pivotally supported on the long side of the upper surface of the base plate 40 to the outer peripheral side 3b of the guide frame 3, these pulleys 41・ 41 ・ 42 ・
The main frame 2a of the main frame 2 is supported via 42. The cutting blades 8 are assembled by mounting the upper end portion of the cutting blade support member 7 supporting the cutting blade 8 to the lower end portion of the cutting blade mounting member 43 provided on the lower surface side of the base plate 40 via the mounting bracket 44. I am wearing it.

The hydraulic motor 5 for driving the chain 6 is mounted on one end of the main body 2a of the main frame 2, and is connected to the vehicle body of the civil engineering vehicle a through a hydraulic hose from a hydraulic device mounted on the vehicle body. It is a normal one that is rotated by the pressure oil that is fed.

The output shaft 50 of the hydraulic motor 5 projects to the lower surface side of the main body portion 2a of the main frame 2 described above, and the sprocket 51 for driving the chain 6 is attached thereto, and the main body portion of the main frame 2 is mounted. The lower surface of 2a faces a pair of left and right driven sprockets 52, which are pivotally supported at opposite left and right ends.

By chaining the chain 6 around the driving sprocket 51 and the driven sprocket 52,
The main frame 2 rotates endlessly along the lower surface of the main body 2a. As shown in FIGS. 9 and 10, the chain 6 is a base plate 4 of the above-mentioned rotating member 4 supported on the guide frame 3 below the guide frame 3.
No. 0 lower surface and cutting blade mounting member 4 hung vertically on the base plate 40
It is stretched so as to rotate between the upper surface of the bent portion 43a on the lower end side of 3 and the upper surface of the bent portion 43a.

The chain 6 includes the rotating member 4
On the other hand, as shown in FIG. 10, the link plate 60
Of the connecting shafts 61 for connecting the ..., The connecting link mounting seats 62 are provided at the upper and lower outer ends of the connecting shafts 61 at appropriate intervals.
62 are provided respectively, and one end sides of the connecting links 63, 63 in the longitudinal direction are connected to each other.
The other ends of the parts 3 and 63 are directed rearward in the turning direction of the chain 6, and their respective end parts are connected to the lower surface side of the base plate 40 of the turning member 4 and the bending part 43 a of the cutting blade mounting member 43. On the top side of
By connecting via the connecting pins 64, 64, the rotary members 4 are connected to each other. As a result, the chain 6 rotates to the right as shown by the arrow in FIG. 10, so that the pair of upper and lower connecting links 63, 63 moves the rotating member 4 in the rotating direction of the chain 6. Pulling, Pulley 41.4
The vehicle rotates along the guide frame 3 into which the parts 1, 42, 42 fit.

Reference numeral 45 denotes a connecting link 63 for pulling the rotating member 4 due to the chain 6 wobbling up and down between the driving sprocket 51 and the driven sprocket 52.
As shown in FIG. 14, the connecting link 63 is rotated in a posture in which the rotating member 4 is pushed out to prevent deformation and damage of the connecting link 63. A stopper pin provided on the lower surface side of the base plate 40 of the rotating member 4 so as to regulate the rotating range of 63 as shown in FIG.

The connecting links 63, 63 are connected to the chain 6 as shown in FIG.
Of the rotating member 4 at the front end side in the rotating direction of the
It is formed in a crank shape that widens outward toward the rear so as to widen the facing interval on the rear end side that is connected to the connecting link 63, 63 when the strong pulling force acts on the swing of the chain 6. By deforming into a straight plate shape, an excessive load in the tensile direction is absorbed.

The cutting blade support member 7 is formed by twisting and bundling a large number of metal wires such as stale wires, and caulking both ends of the wire bundle 70 with metal clamp members 71 as shown in FIG. There is.

As shown in FIG. 17, a bundle 70 of wires forming the cutting blade support member 7 is formed by gathering a plurality of bundles 70 ... As shown in FIG.
Further, the twisting direction of the wires of these bundles 70 is made into two types of right-handed R and left-handed L, and the two types of wire bundles are combined as shown in FIG. 19 to support the cutting blade as shown in FIG. It may be formed on the member 7.

The cutting blade 8 is attached to the lower end of the above-mentioned cutting blade support member 7 via a mounting metal fitting 80.

[0031]

As described above, in the frozen road surface cutting apparatus A according to the present invention, the docking frame 1 is connected to the vehicle a by its own weight or descending freely, and the docking frame 1 is mounted on the right and left intermediate portions thereof. A main frame 2 which is supported on a road surface by a gauge shoe 12 provided in a one-leg shape, and a chain 6 supports a number of cutting blades 8 which circulate and rotate along a horizontal surface.
On the right and left side by side of the guide shafts 23, 23 and the guide hole 15 in the docking frame 1 in the shape of a stupid hole.
-By fitting with 15, it is connected to the docking frame 1, and the spring 25 urges the guide shafts 23, 23 to be hung up to reduce the load of the main frame 2. The docking frame 1 that advances by contacting the lower end of the gauge shoe 12 can travel in a stable posture. Then, since the main frame 2 can freely tilt and move up and down with respect to the docking frame 1 while the load on the main frame 2 is lightened, a large number of cutting blades 8 ... Following the slopes and irregularities of the road, it will come into contact with the surface of the ice burn on the road surface with a substantially uniform contact pressure, and numerous cutting grooves for slip prevention will be formed on the surface of the ice burn with a substantially uniform depth. Will be formed into.

[Brief description of drawings]

FIG. 1 is a schematic side view of a conventional frozen road surface cutting device.

FIG. 2 is a plan view of the same.

FIG. 3 is a schematic plan view of another conventional frozen road surface cutting device.

FIG. 4 is a side view of the above.

FIG. 5 is a schematic plan view of a frozen road surface cutting device of still another form.

FIG. 6 is a plan view in which a part of the frozen road surface cutting device according to the present invention is removed from the vehicle body and is omitted.

FIG. 7 is a partially cutaway front view of the same device.

FIG. 8 is a partially cutaway side view showing a state in which the same apparatus is connected and mounted to a vehicle body of a civil engineering vehicle.

FIG. 9 is a partially cutaway side view of a rotating member of the same device.

FIG. 10 is a front view of a rotating member of the same apparatus.

FIG. 11 is a plan view of a rotating member of the same apparatus.

FIG. 12 is a plan view showing a state in which the rotating member of the above apparatus is connected to a chain.

FIG. 13 is a partially cutaway plan view of the rotating member of the above apparatus in the same state.

FIG. 14 is an explanatory view of the action of the connecting link between the rotating member and the chain of the same apparatus.

FIG. 15 is an explanatory view of the action of the stopper of the connecting link of the rotating member of the same apparatus.

FIG. 16 is a front view of a cutting blade support member of the above apparatus.

FIG. 17 is a cross-sectional view of another embodiment of the cutting blade support member of the same device.

FIG. 18 is a front view of another embodiment of the cutting blade support member of the same device.

FIG. 19 is an explanatory view of a combined state of wire bundles of a cutting blade support member of the same apparatus.

FIG. 20 is a front view showing a state in which the combination of wire bundles of the cutting blade support member of the same apparatus is changed.

FIG. 21 is a front view showing a state in which the main frame is parallel to the docking frame of the same apparatus.

FIG. 22 is a front view showing a state in which the main frame is tilted to the left and right with respect to the docking frame of the same apparatus.

FIG. 23 is a side view showing a state where the main frame is raised with respect to the docking frame of the same apparatus.

FIG. 24 is a side view of the docking frame of the same apparatus in which the main frames are aligned at the same height.

FIG. 25 is a side view showing a state where the main frame is descending with respect to the docking frame of the same apparatus.

[Explanation of symbols]

A ... Frozen road surface cutting device, a ... Vehicle, b ... Supporting machine frame, c ...
Spring, d ... Claw, e ... Arm, f ... Rotating plate, g ... Spring claw, h ... Supporting machine frame, i ... Rotating shaft, j ... String-like body,
k ... cutting body, m ... boom, n ... hydraulic cylinder, o ... bucket, p ... assembly bracket, q ... hydraulic cylinder, r ... link mechanism, R ... right-handed, L ... left-handed, 1 ... docking frame, 10 ... Connection hitch, 11 ... Lock mechanism, 12 ...
Gauge shoe, 13 ... Support frame, 14 ... Reinforcement frame, 15 ...
Guide holes, 2 ... Main frame, 2a ... Main body, 20 ...
Horizontal rod, 21 ... Vertical rod, 22 ... Reinforcing plate, 23 ... Guide shaft, 2
4 ... Collar part, 25 ... Spring material, 26 ... Regulation link, 3 ... Guide frame, 3a ... Inner peripheral side, 3b ... Outer peripheral side, 30 ... Mounting member, 4 ... Rotating member, 40 ... Base plate, 41.12. …pulley,
43 ... Cutting blade mounting member, 43a ... Bent portion, 44 ... Mounting bracket, 45 ... Stopper pin, 5 ... Hydraulic motor, 50 ...
Output shaft, 51 ... Sprocket for driving, 52 ... Sprocket on driven side, 6 ... Chain, 60 ... Link plate, 6
1 ... Connection shaft, 62 ... Mounting seat, 63 ... Connection link, 64 ...
Connection pin, 7 ... Cutting blade support member, 70 ... Wire bundle,
71 ... Clamping material, 8 ... Cutting blade, 80 ... Mounting bracket.

Front Page Continuation (72) Inventor Yuji Nakayama 2828 Natsumi Nabari, Mie Prefecture Takakita Co., Ltd. (72) Inventor Takayuki Ota 2-3-16 Uenoboro, Atsubetsu-ku, Sapporo

Claims (1)

[Claims] 1. A docking frame 1 is connected and mounted to a vehicle body of a civil engineering vehicle a so as to descend freely by its own weight, and a one-legged gauge shoe 12 provided in the middle between the left and right sides of the docking frame 1. The main frame 2 is mounted on the front side of the docking frame 1 supported on the road surface, and the main frame 2 is provided with the guide shafts 23. A spring member 25 in the pushing-up direction, which is connected by fitting with the guide holes 15 formed in the main frame 2, is provided between the guide shafts 23 and the support machine frame 13 and the load of the main frame 2 is provided.
The freezing is characterized in that a large number of cutting blades 8 ... Are erected on the lower surface side of the main frame 2 so as to circulate and rotate along a substantially horizontal surface by a chain 6 that rotates endlessly. Road surface cutting device.