JP4015764B2 - Lubricating oil supply pump mounting mechanism for tunnel excavator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mechanism for mounting a lubricating oil supply pump on a carriage in a tunnel excavator.
[0002]
[Prior art]
The carriage 12 connected to the rear of the rotary cutter for excavation of the tunnel excavator is located at the right or left corner (here, the right corner) of the circular section of the tunnel 2 excavated by the rotary cutter, as shown in FIG. ing. This is because it is necessary to arrange an earth and sand discharge pipe or the like in the central portion of the circular cross section of the tunnel 2. The carriage 12 is equipped with a rotary cutter control unit and the like, and as one of them, the lubricating oil supply pump 3 is also mounted. The lubricating oil supply pump 3 is attached to a container 4 such as a pail can or a square can containing lubricating oil by immersing a part thereof in the lubricating oil in the container 4 from above. When the lubricating oil in the container 4 becomes almost empty and the container 4 is replaced with a new container 4, the lubricating oil supply pump 3 is taken out upward, the container 4 is replaced with the new container 4, and the lubricating oil supply pump 3 again. Was mounted on a new container 4 from above.
[0003]
[Problems to be solved by the invention]
However, when the diameter of the tunnel 2 is 2 m or less, the operator must take out the lubricating oil supply pump 3 upward and replace the container 4 as shown in FIG. Considering the weight of the pump 3, the replacement work was difficult.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a lubricating oil supply pump mounting mechanism capable of easily exchanging a container equipped with a lubricating oil supply pump in a tunnel excavator for excavating a tunnel having a small diameter. .
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is a mechanism for mounting a lubricating oil supply pump on a tunnel excavator, the tunnel excavator comprising a rotary cutter for excavation located on the front surface, a carriage connected to the rear of the rotary cutter, The carriage is located at the right or left corner of the circular section of the tunnel excavated by the rotary cutter, and the lubricant supply pump sucks and discharges the lubricant from the container containing the lubricant. It is fixed to the carriage mounting table so as to be movable up and down, and is attached to and detached from the container installed on the mounting table. It is characterized in that it can move forward and backward from the carriage up to a substantially central position in the width direction of the circular section.
[0006]
A second aspect of the present invention is the fixing means according to the first aspect, wherein the mounting table is fixed to the carriage in a state of being advanced to the substantially central position and in a state of being retracted to the carriage. It is equipped with.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a longitudinal sectional partial view of a tunnel excavator employing a lubricating oil supply pump mounting mechanism of the present invention. The tunnel excavator 1 includes a rotary cutter 11 for excavation located on the front surface and a carriage 12 connected to the rear side of the rotary cutter 11, and proceeds while excavating the tunnel 2 by the rotary cutter 11. Many carts 12 are connected, and each cart 12 is equipped with an operator 13, an operation unit 14, a power source 15, a control unit, and the like, and one of which is a lubricating oil supply pump 3. As shown in FIG. 2, which is a cross-sectional view taken along the line II-II of FIG. 1, the carriage 12 is located at the right corner of the circular cross section of the tunnel 2.
[0008]
FIG. 3 is a schematic diagram showing the configuration of the lubricating oil supply pump 3, and corresponds to a view taken along the arrow III in FIG. The lubricating oil supply pump 3 includes a disk-shaped lid portion 31, a drive device 32 such as a geared motor fixed to the upper surface of the lid portion 31, a transmission portion 33 extending downward from the drive device 32, and a transmission portion 33. The pump body 34 and the transmission part 33 are immersed in the lubricating oil in the container 4 and the container 4 is closed by the lid part 31 and attached to the container 4. . In the lubricating oil supply pump 3, the driving force of the driving device 32 is transmitted to the pump main body 34 via the transmission portion 33, and the pump main body 34 sucks the lubricating oil from the suction port on the lower surface and discharges it through the pipe 35. It operates so as to discharge from the outlet 36.
[0009]
The lubricating oil supply pump 3 is supported by the lifting device 5. As shown in FIG. 4, the elevating device 5 includes a support column 51 and an elevating member 52, and the rack 521 of the elevating member 52 is engaged with the pinion 511 of the support column 51, so The elevating member 52 is moved up and down by turning the handle 53 and rotating the pinion 511. The handle 53 is locked by turning a stopper pin (not shown) into the column 51. The elevating member 52 is fixed to the lid portion 31 of the lubricating oil supply pump 3 via the arm 522.
[0010]
FIG. 5 is a view taken in the direction of arrow V in FIG. The carriage 12 has a structure in which one of the pair of long sides of the upper frame 121 in the rectangular parallelepiped frame long in the traveling direction of the tunnel excavator 1 is omitted. The missing upper frame is the center side of the circular cross section of the tunnel 2. Two slide rails 6 are provided on the lower frames 122 a and 122 b of the pair of long sides of the carriage 12 so as to extend in the width direction at a predetermined interval, and on the two slide rails 6, a mounting table 7 is provided. Is provided. In FIG. 5, the container 4 is detachably fixed on the mounting table 7, the lifting device 5 is fixed on the mounting table 7, and the lubricating oil supply pump 3 is mounted on the container 4. As shown in FIG. 6, the slide rail 6 can move the mounting table 7 on which the lubricating oil supply pump 3, the container 4, and the lifting device 5 are mounted to the outside of the carriage 12. As shown in FIG. 7, which is a sectional view taken along arrow VII in FIG. 6, the slide rail 6 moves the mounting table 7 to a substantially central position in the width direction of the tunnel 2.
[0011]
FIG. 8 is an enlarged view of portion A in FIG. The slide rail 6 is composed of a fixed member 61 and a movable member 62 as shown in FIG. 8 showing the front and FIG. 9 showing the side, and the movable member 62 is interposed between the members 61 and 62. The ball bearing 63 is slidable with respect to the fixing member 61 as indicated by an arrow in FIG. The fixing members 61 of the two slide rails 6 are respectively fixed to a pair of lower frames 122a and 122b via an angle 81. Similarly, the mounting table 7 is fixed to the movable member 62 via an angle 82. Yes. As shown in FIG. 10, the stopper member 9 is fixed to the lower frame 122a. The stopper member 9 is configured such that the bar 92 protrudes or retracts when the knob 91 is twisted or returned 90 degrees. One end of one angle 82 is provided with a plate member 93 having a gap 931 into which the protruding bar 92 of the stopper member 9 is inserted as shown in FIG. 10 in the state of FIG. The other end of the angle 82 is provided with a stop plate 94 on which the protruding bar 92 of the stopper member 9 abuts as shown in FIG. The stopper member 9, the plate member 93, and the stop plate 94 constitute fixing means for fixing the mounting table 7 to the carriage 12. 10 is an enlarged perspective view of part A in FIG. 5, and FIG. 11 is an enlarged perspective view of part B in FIG.
[0012]
The replacement operation of the container 4 in the mounting mechanism having the above configuration is performed as follows. First, in the state of FIG. 5, the knob 91 of the stopper member 9 is twisted to remove the bar 92 from the gap 931 of the plate member 93. Next, as shown in FIGS. 6 and 7, the mounting table 7 is slid to be positioned at the approximate center in the width direction of the circular cross section of the tunnel 2, and the knob 92 of the stopper member 9 is twisted to protrude the bar 92 and stop. The mounting table 7 is fixed at the position by contacting the plate 94. Next, as shown in FIGS. 6 and 7, the handle 53 of the elevating device 5 is turned to raise the lubricating oil supply pump 3 together with the elevating member 52 until the pump body 34 is completely over the container 4. A stopper pin is inserted into the handle 53 to lock the rotation of the handle 53. Next, the container 4 is removed from the mounting table 7 in this state, and a new container 4 is installed on the mounting table 7 and fixed. Next, the stopper pin is pulled out, the handle 53 is turned in the reverse direction, the lubricating oil supply pump 3 is lowered together with the elevating member 52, the pump main body 34 and the transmission portion 33 are immersed in the lubricating oil of the container 4, and the container 4 is covered. The lubricating oil supply pump 3 is attached to a new container 4 by closing with the part 31. Then, the bar 91 is retracted by twisting the knob 91 of the stopper member 9, the mounting table 7 is slid and positioned in the carriage 12 as shown in FIGS. 5 and 2, and the bar 91 is twisted by turning the knob 91 of the stopper member 9. The mounting table 7 is fixed to the position by projecting 92 and inserting it into the gap 931 of the plate member 93.
[0013]
Thus, in the mounting mechanism having the above-described configuration, the container 4 is replaced while the lubricating oil supply pump 3 is raised and maintained by the lifting device 5. In addition, the work by the elevating device 5 is performed using a place having a margin in the height, that is, a substantially central position in the width direction of the circular cross section of the tunnel 2. Therefore, the replacement work of the container 4 is performed easily and reliably even in the small tunnel 2 having a diameter of 2 m or less.
[0014]
When the mounting table 7 is located in the carriage 12, the stopper member 9 and the plate member 93 are used. When the mounting table 7 is slid and positioned outside the carriage 12, the stopper member 9 and the stop plate 94 are used. Since each is fixed, use of the lubricating oil supply pump 3 and replacement work of the container 4 are performed stably.
[0015]
【The invention's effect】
According to the first aspect of the present invention, the container replacement operation is performed using a lifting device that lifts and lowers the lubricating oil supply pump, and uses the place with the most height in the center in the width direction of the circular cross section of the tunnel. Therefore, even a tunnel having a small diameter can be easily and reliably performed.
[0016]
According to invention of Claim 2, since a mounting base can be fixed with respect to a trolley | bogie, use of a lubricating oil supply pump and replacement | exchange of a container can be performed stably.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional partial view of a tunnel excavator employing a lubricating oil supply pump mounting mechanism according to the present invention.
2 is a cross-sectional view taken along the line II-II in FIG.
FIG. 3 is a schematic diagram showing a configuration of a lubricating oil supply pump, and corresponds to a view taken in the direction of arrow III in FIG.
FIG. 4 is a partially enlarged cross-sectional view of FIG.
FIG. 5 is a view taken in the direction of arrow V in FIG.
6 is a perspective view showing a state where the mounting table is slid from the state of FIG. 5; FIG.
7 is a cross-sectional view taken along arrow VII in FIG.
8 is an enlarged view taken along arrow VIII of part A of FIG.
FIG. 9 is a side view of the slide rail.
10 is an enlarged perspective view of a portion A in FIG.
11 is an enlarged perspective view of a portion B in FIG.
FIG. 12 is a cross-sectional view showing one process of taking out a lubricating oil supply pump mounted on a cart of a conventional tunnel excavator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tunnel digging machine 11 Rotating cutter 12 Carriage 2 Tunnel 3 Lubricating oil supply pump 4 Container 5 Lifting device 7 Mounting stand 9 Stopper member 93 Plate member 94 Stop plate

Claims (2)

A mechanism for mounting a lubricating oil supply pump on a tunnel machine,
The tunnel excavator includes a rotary cutter for excavation located on the front surface, and a cart connected to the rear of the rotary cutter, and the cart is located at the right or left corner of the circular cross section of the tunnel excavated by the rotary cutter. Located
The lubricating oil supply pump sucks and discharges lubricating oil from a container containing lubricating oil, and is fixed on a carriage mounting table so as to be movable up and down, and is attached to a container installed on the mounting table. It is designed to be lifted and removed with respect to the
A mechanism for mounting a lubricating oil supply pump for a tunnel digging machine, wherein the mounting table is capable of moving forward and backward from the carriage to a substantially central position in the width direction of the circular cross section of the tunnel. 2. The lubricating oil supply pump for a tunnel digging machine according to claim 1, further comprising fixing means for fixing the mounting table to the carriage in a state of being advanced to the substantially central position and in a state of being retracted to the carriage. Mounting mechanism.

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