JP3752178B2 - Wear prevention device for cutting blade mounting base - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a wear prevention device for a cutting blade mounting pedestal having a novel configuration, and more particularly, the cutting blade mounting accompanying the progress of wear of the cutting blade provided in a blade disposed in a snow removal vehicle. The present invention relates to a fuse for detecting a wear limit position of a cutting blade and installation of the fuse in order to prevent wear damage of a pedestal.
[0002]
[Prior art]
The conventional type has the following configuration.
That is, in a conventional blade, there are methods of providing a cutting blade, such as fixing with a bolt or pressure bonding using hydraulic pressure, but in any case, the wear status of the cutting blade is confirmed visually.
[0003]
[Problems to be solved by the invention]
Those described in the prior art have the following problems.
In order to make full use of the cutting edge provided on the blade without waste, it is desirable to use it so that it is worn to the nearest position to the cutting edge mounting base. However, since confirmation during the road surface leveling work is ongoing, it is difficult to confirm at which point, and if the time is lost, the cutting blade mounting base will be worn and damaged.
[0004]
The present invention has been made in view of such problems of the prior art, and an object of the present invention is to provide an apparatus capable of solving the above-described problems.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is as follows.
According to the first aspect of the present invention, in the blade disposed in the snow removal vehicle, the cutting blade mounting pedestal is attached to the cutting blade mounting pedestal in order to prevent wear damage of the cutting blade mounting pedestal due to the progress of wear of the cutting blade during road surface leveling work. When multiple fuses are installed to detect the wear limit position of the blade and the wear of the cutting blade progresses and the wear wears at the same time as the wear limit immediately before the cutting edge mounting base, which is the wear limit, the fuse also wears at the same time. , And is configured to transmit a current interruption signal due to wear-out of the fuse as a warning to the driver by an alarm sound and a lamp display through the operation of the relay.
[0006]
According to a second aspect of the present invention, in the blade disposed in the snow removal vehicle, the cutting blade mounting pedestal is attached to the cutting blade mounting pedestal in order to prevent wear damage of the cutting blade mounting pedestal due to the progress of wear of the cutting blade during road surface leveling work When a plurality of fuses for detecting the wear limit position of the fuse are installed, the fuse 4 is formed by bending a round bar-shaped insulating cover member from the center into a substantially vertical U-shape from the front, and then moving the upper half backward. The lower U-shaped portion 4A and the left and right horizontal portions 4B and 4B are formed by bending substantially at right angles toward each other, and the conductor portions 4C and 4C from which the insulation coating is removed are formed on the horizontal portions 4B and 4B. A fuse through-hole 5 and a fuse insertion groove 6 slightly shallower than the outer diameter of the fuse are provided on the contact surface side with the cutting blade, which is the front surface of the cutting blade mounting base. A pedestal with a connector to connect the lead wires It is configured to fix the belt.
[0007]
According to the third aspect of the present invention, in the blade disposed in the snow removal vehicle, the wear limit position of the cutting blade is set in order to prevent wear damage of the cutting blade mounting base due to the progress of wear of the cutting blade due to road surface leveling work. The fuse is installed on the contact surface between the cutting blade and the cutting blade mounting base so that the cutting blade mounting base will not always be worn and damaged even if the cutting angle of the cutting blade is changed. The fuse is fixed by crimping with a cutting blade.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples with reference to the drawings.
Referring to FIGS. 1 to 5, a fuse 4 is penetrated on the front surface of the cutting blade mounting base 2 to which the cutting blade 3 of the blade 1 is fixed in contact with the lower cutting blade 3 as shown in FIG. There are provided two through holes 5 and 5 for fuses and two groove insertion grooves 6 for inserting fuses 4 slightly shallower than the outer diameter of the fuses. After the covered fuse member is bent from the center into a substantially vertically long U-shape, the upper half is bent rearward at a substantially right angle so that the lower U-shaped portion 4A and the left and right horizontal portions 4B, 4B are The conductor portions 4C and 4C are formed and formed by removing the insulation coating of the horizontal portions 4B and 4B.
[0009]
A pedestal 7A with a connector having two connectors 7 for connecting the fuse 4 and the lead wire 8 is fixed to the rear surface of the cutting blade mounting base 2 with bolts, and a fuse through hole in front of the cutting blade mounting base 2 Each of the horizontal portions 4B of the fuse 4 of FIG.
Therefore, the U-shaped portion 4A is also fitted into the fitting groove 6 of the fuse, but the lower portion of the U-shaped portion 4A protrudes downward from the lower end of the cutting blade mounting base 2 as shown in FIG. The diameter is slightly larger than the diameter of the U-shaped portion 4A of the fuse.
This is to provide a slight space so that the cutting blade mounting base 2 is not worn immediately even if the fuse 4 is worn and disconnected at the same time as the cutting blade 3.
When the cutting angle of the cutting blade 3 is changed, the cutting blade 3 does not move forward in the mechanism from the position shown in FIG. 1 but only moves backward, and the lower portion of the cutting blade mounting base 2 and the road surface are moved as it moves. Come away.
Therefore, since the wear allowable range a and the lower part of the cutting blade mounting base 2 are also separated, the cutting blade mounting base 2 is always configured not to be damaged by wear.
That is, when the cutting blade 3 is fixed with a bolt before the cutting blade 3 is attached, the fuse 4 is tightened with the cutting blade 3 as shown in FIG.
FIG. 2 is also a rear view of the blade 1 with a plurality of fuses 4 and a cutting blade 3 fixed thereto.
[0010]
The fuse 4 is worn together with the cutting blade 3 and does not fall off even if it is disconnected, and is always replaced with the cutting blade 3 at the same time.
The fuse 4 may be installed only on both sides or in the center of the blade 1, and if any one of the fuses 4 is worn out, a warning signal is sent. 4 will be exchanged.
[0011]
FIG. 6 shows a connection state between the fuse 4 and the lead wire 8. An insertion connector 15 is fixed to the end of the lead wire fixed inside the connector, and the outer periphery of the insertion connector 15 is An insulating sleeve 16 is fitted, and the conductor portion 4C of the fuse 4 is fitted and connected to the inside of the insertion connector 15.
[0012]
Referring to FIG. 7, the current from the power source 9 of the snow removal vehicle passes through the open / close switch 14 in series through the plurality of fuses 4 and is connected to the coil of the relay 10, so that the contact (2) and the contact (3) Is connected, the blue lamp 11 is lit and the cutting blade 3 is in the wear tolerance range a. If any of the fuses 4 is worn out, the current is cut off in the coil of the relay 10, so (1) and the contact (3) are connected, the red lamp 13 and the buzzer 12 are lit and actuated to indicate that the cutting edge 3 has reached the allowable wear limit.
[0013]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists an effect described below.
1. It is very economically effective because it prevents wear damage on the cutting edge mounting base and the cutting edge can be used up to the allowable wear limit.
2. This eliminates the need for the driver to always be aware of the visual confirmation of the wear condition of the cutting blade, which is very effective in reducing the burden on the driver.
3. Even when the cutting angle of the cutting blade is arbitrarily changed during the road surface leveling work, the cutting blade mounting base is not always worn and damaged.
4). In addition, it can be manufactured at a low cost, has a small number of parts, and is easy to assemble and economical.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA in which a blade is provided with a wear prevention device for a cutting blade mounting base.
FIG. 2 is a rear view of a blade equipped with a wear prevention device for a cutting blade mounting base.
FIG. 3 is a front view showing a state in which the through hole of the fuse and the fitting groove of the fuse are processed in the cutting blade mounting base.
FIG. 4 is a perspective view of a fuse.
FIG. 5 is a front view of the blade before the cutting blade is mounted with the wear preventing device for the cutting blade mounting base.
FIG. 6 is a detailed view of fuse and lead wire connection.
FIG. 7 is a circuit diagram of an electrical system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Blade 2 Cutting blade mounting base 3 Cutting blade 4 Fuse 4A U-shaped part 4B Horizontal part 4C Conductor part 5 Fuse through hole 6 Fuse insertion groove 7 Connector 7A Base with connector 8 Lead wire 9 Power supply 10 Relay 11 Blue lamp 12 Buzzer 13 Red lamp 14 Open / close switch 15 Plug connector 16 Insulation sleeve a Wear tolerance

Claims (3)

In the blade (1) disposed in the snow removal vehicle, in order to prevent wear damage of the cutting blade mounting base (2) due to the progress of wear of the cutting blade (3) accompanying road surface leveling work, the cutting blade mounting base ( 2) A plurality of fuses (4) for detecting the wear limit position of the cutting blade (3) are installed, and the wear allowance immediately before the cutting blade mounting base (2) where the wear of the cutting blade (3) progresses and is at the wear limit. As the fuse (4) wears out at the same time as it reaches the limit, a weak current is passed through the fuse (4), and an alarm sound and a signal for interrupting the current due to wear disconnection are given as a warning via the operation of the relay (10). A device for preventing wear of a cutting blade mounting base, wherein the device is configured to transmit a lamp display to a driver. In the blade (1) arranged in the snow removal vehicle, in order to prevent wear damage of the cutting blade mounting base (2) due to the progress of wear of the cutting blade (3) due to road leveling work, the cutting blade mounting base (2 ), A plurality of fuses (4) for detecting the wear limit position of the cutting blade (3) are installed. The upper half is bent backward at a substantially right angle to form a lower U-shaped part (4A) and left and right horizontal parts (4B, 4B). The horizontal parts (4B, 4B) A conductor portion (4C, 4C) from which the insulation coating has been removed is formed, and a through-hole (5) of a fuse is formed on the contact surface side with the cutting blade which is the front of the cutting blade mounting base (2), 4) A groove (6) for inserting a fuse slightly shallower than the outer diameter is provided, and the cutting blade mounting base ( Anti-wear device of the cutting edge mounting seat, characterized in that it is configured so as to fix the bolt with connector seat (7A) which connects the fuse (4) leads to (8) on the back of the). In the blade (1) disposed in the snow removal vehicle, in order to prevent wear damage of the cutting blade mounting base (2) due to the progress of wear of the cutting blade (3) during road surface leveling work, the cutting blade (3) As the setting position and mounting method of the fuse (4) for detecting the wear limit position, the fuse blade mounting base (2) is always worn and damaged even if the cutting angle of the cutting blade (3) is changed. (4) is installed on the contact surface of the cutting blade (3) and the cutting blade mounting base (2), and the fuse (4) is crimped and fixed by the cutting blade (3). Wear prevention device for cutting blade mounting base.

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