JPS6014569B2 - Tire-type laying machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tire-type laying machine used for laying or collecting cables.

There is a conventional tire-type laying machine as shown in FIG. 1, in which a large number of tires arranged on upper and lower bears are arranged in rows, and cables, etc. are fed out or pulled up while sandwiching the cables.

This is done by supporting the upper and lower tires 01, 02 on a frame 05 via arms 03, 04 with pins 06, and interposing a hydraulic actuator 07 between both arms 03, 04 to move both tires 01, 02 in the pulling direction. In this state, each tire 01, 02 is driven by a hydraulic motor (not shown) provided on each tire shaft, and the cable 08 held between both tires is sent out.

However, the tire type laying machine having the above structure has the following drawbacks.

First, since the tire support arm is arranged substantially horizontally in the longitudinal direction of the laying machine, the overall length of the laying machine becomes long and the apparatus becomes large.

Secondly, since the upper and lower tires 01 and 02 are simultaneously pushed open in opposite directions when passing through the repeater, a mechanism 09 for opening and closing the upper and lower arms 03 and 04 in synchronization is required, which complicates the device.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of conventional tire-type laying machines, it is an object of the present invention to provide a tire-type laying machine that is small and lightweight and can safely and reliably lay cables, repeaters, etc. at high speed.

The structure of the tire-type laying machine of the present invention for achieving the above object is a tire-type laying machine in which a plurality of tire pairs consisting of two tires facing each other are arranged in tandem, and a cable is fed out by sandwiching the cable between these tire pairs. In a laying machine, the upper tire of a pair of tires is equipped with a vertical movement base that moves the tire up and down in a straight line, and each tire is equipped with a hydraulic motor that drives and rotates the tire. The hydraulic motors of the tires are connected in series, and the hydraulic motors of pairs of tires arranged in tandem are connected in parallel to form a hydraulic circuit for these hydraulic motors. A brake was installed so that the load during cable installation was borne equally by each tire pair.
Alternatively, the tension of the cable may be controlled by providing a relief valve in the hydraulic circuit and controlling a set value of the relief valve.

Hereinafter, one embodiment of the tire-type laying machine according to the present invention will be described in the second to second embodiments.
This will be explained based on FIG.

The two upper and lower tires 1 and 2 are used as a tire pair, and the drive parts 3 and 4 of this tire pair are assembled into a frame 5 to constitute a tire unit, and a plurality of units 6 (four units in this example) are made of common plywood. 7 in tandem to form one module, and one or more modules are arranged in tandem to form a laying machine.

Therefore, as the configuration of this laying machine, it is sufficient to show the configuration of the tire unit 6, which will be described below.

In the tire unit 6, the drive unit 4 of the lower tire 2
As shown in FIG. 5, it consists of a gear reducer 8 connected to the tire drive shaft of the tire 2, a brake 9, and a hydraulic motor 11 connected via a coupling 10.

In the drawing, the tire drive shaft is hidden behind the case and cannot be seen, and the attachment points of the gear reducer 8 and brake 9, which are built into the case, are shown. Mounting flanges 12 are provided at two locations on the drive section 3, and the tire drive section 4 is assembled into the frame 5 by attaching these mounting flanges 2 to mounting fittings 13 on the frame 5 side. Upper tire 1
Similarly, the drive section 3 is composed of a gear reducer 8 connected to the tire drive, a brake 9, and a hydraulic motor 11 connected via a coupling 10. By attaching it to the mounting plate 15 that connects to the upper part of the frame 5 through
It is incorporated into the system 5.

The link mechanism 14 is provided with a guide 17 with a long groove 16 on one side of a mounting plate 15, and mounting arms 18 on the other both sides, and a guide with a long groove 16 on the frame 5 at a position opposite to these. 17 and a mounting arm 18, one end of each of two link levers 20 which are crossed with a central pin 19 is pinned to the mounting arm 18, and each end is engaged with the long groove 16 of the guide 17 by a pin. It has become. Then, as shown in FIGS. 5 to 8, the upper tire 1
A rod 23 of a crimping cylinder 22 whose rear end is fixed to the frame 5 via a support fitting 21 is connected to the drive unit 3 of the frame 5 , and when the cylinder 22 is operated, the tire 1 is moved together with the drive unit 3 .There is a link mechanism 14 . This allows the mirror to move up and down without moving. Further, as shown in FIGS. 6 to 8, guide rollers 24 are provided at two locations above and below on both sides of the mounting flange 12 of the drive section 3, and these guide rollers 24 are attached to the frame 5 when the drive section 3 is moved. The guide rail 25 is rolled to guide the drive unit 3 smoothly and without swinging back and forth. Cable guides 26 are installed on both front and rear sides of a module in which a plurality of tire units 6 having the above structure are arranged in tandem.

The cable guide 26 includes a pair of cable rollers 27 that rotate about a vertical axis and are mounted on a mounting base 28, and the cable loaf 27 opens and closes in accordance with the diameter of the cable 29. In addition, when constructing a laying machine by combining a plurality of modules in tandem, cable guides 26 are provided on the inlet side and outlet side of the laying machine and between each module.

FIG. 9 shows the hydraulic system of a tire-type laying machine that is a combination of four modules.

These modules arranged in tandem are referred to as a first module 1, a second module 0, a third module m, and a fourth module W. Since the piping systems of modules 1 to W are the same, only the first module 1 will be shown.

The eight hydraulic motors 1 for driving each tire 1, 2 are arranged in series, with the hydraulic motors 11 for driving the upper and lower tires 1, 2 making up the coarse part connected in series, and the two main pipes 30 connect adjacent pairs of tires. , 31 are connected in parallel. 32 is a pipe connecting main pipes 30 and 31, 33 is pipe 3
2, 34 is a pipe connected to pipe 32 between check valves 33, 35 is a load control leaf valve provided in pipe 34, 36 is a cooler, and 37 is a main pipe. Road 3
A branch pipe line 39 connects the pipe line 38 and the pipe line 32, 39 is a filter provided in the branch pipe 37, 33
' is a check valve provided in the pipe line 38.

The pipe line 32 is connected to a booster pump 40. This booster pump 40 is also connected to the pipes 32 of the piping systems of the other modules 0 to W. In the drawing, 32a, 32
b and 32c are the respective pipe lines. the main pipe line 30,
31 is connected to a switching valve 41 of a hydraulic unit that is in common with the four modules 1 to W.

The switching valve 41' is connected to a main pressure oil pump (Jane pump) 44 through pipes 42 and 43. 45 is the pipe line 42,4
3, the booster pump 4 is connected to the river pipe 4.
Connected by 6.

47 is a check valve.

48 is a pipe connecting pipes 42 and 43, and a relief valve 49
is provided.

In this hydraulic unit, 50 is a servo valve, 51 is a filter, 52 is an auxiliary pressure oil pump, 53 is a filter, and 54 is an oil tank. 55 is a cooling oil tank, and 56 is a cooling oil pump, which circulates and supplies cooling oil to the hydraulic motor 11 of each module 1 to W and the main pressure oil pump 44.

57 is a cooling oil supply pipe to the hydraulic motor 11 of the first module 1, and 58 is its return pipe, 57a, 57b, 57
c and 58a, 58b, 58c are other modules 0 to N
These are the supply V supply line and return line to the hydraulic motor 11.

As a hydraulic unit for operating the brakes 9 of the tires 1 and 2, a hydraulic power source 59, a relief valve 60, a proportional electromagnetic relief valve 61, an electromagnetic valve 62, etc. are provided. Although only one is shown in the drawing, this hydraulic unit for the brake 9 is provided in all tire drive systems. Next, the operation of this device will be described.

The cable 29 passes between the guide rollers 27 of the cable guide 26 at the entrance of the laying machine, is sandwiched between four pairs of tires 1 and 2 in one module, and then passes between the guide rollers 27 of the cable guide 26 at the exit side of the module. is led to the next module, and so on through all the modules.

Since the tire pair is lighted in tandem, cable 2
9 is set on a straight line. Hydraulic motor 1
1, the upper tire 1 is connected to the cable 2 by the crimping sill 22.
9 is pressed against the lower tire 2, the cable 29 is compressed by the tires 1 and 2 and sent out.

When the repeater 63, which has a larger diameter than the cable 29, passes, the cable roller 27 of the cable guide 26
are pushed open, and the upper tire 1 of the tire pair is pushed up.

Since the rotational speeds of the tires 1 and 2 can be set to an arbitrary reduction ratio by the gear reducer 8, it is possible to correspond to load conditions during cable laying or drawing.

To stop the cable 29, the brake 9 may be activated.

Since the brake 9 is provided in each tire drive system, the tires 1 and 2 of each tire pair in one module cooperate to share the load according to the extension of the cable 29. That is,
Solenoid valve 62 in the hydraulic unit for brake 9 at stop
The brake torque is controlled by turning ON' and adjusting the brake control hydraulic pressure using the relief valves 60 and 61. This controls the cable holding force per pair of tires, so if more cable tension is applied, the tension will be distributed to the next pair of tires. The work will be done. Most of the load during cable installation is absorbed by the load control glue leaf valve 35, so the pump unit can be designed to be small and lightweight to the extent that it can handle the load when the cable is pulled up. It can be done.

Furthermore, since the relief valve 35 can be automatically controlled, the cable 29 can be laid while adjusting the tension.
In the hydraulic unit, the auxiliary pressure oil pump 52 sucks oil from the oil tank 54 through the filter 53, and controls the servo valve 50 to adjust the discharge amount and the discharge direction of the main pressure oil pump 44. The main pressure oil pump 44 is unloaded when it is inconvenient, and when in use, the switching valve 41 is operated to supply oil to each module 1 to W. The oil supplied into the module is supplied in parallel to the hydraulic motors 11 of each tire pair, and is supplied in series to the hydraulic motors 111 of the tire pairs and the hydraulic motors 111 of the tire pairs, each of which performs work and passes through the switching valve 41 to the main pressure oil pump 44. Return to
Refueled repeatedly. The hydraulic circuit of the tire drive system is a closed circuit, and a booster pump 40 is provided to replenish oil leakage from bearings and the like. Further, the temperature of the pressure oil line is prevented from rising by the cooler 36. According to the hydraulic circuit as described above,
Cable 2 pulled out into the water during cable installation work
9, the cable tension on the outboard side becomes larger than the inboard tension applied to the cable 29 via each hydraulic motor 1.
It operates as a pump.

Therefore, pressure is built up on the outlet side of each hydraulic motor 11, so
This hydraulic pressure is passed through a pipe line 32 and a pipe line 34 to an I for load control.
After leading to J leaf valve 35, cooler 36, filter 39
It is circulated to the suction side of the hydraulic motor 11 through the. At this time, by controlling the set value of the relief valve 35, it is possible to control the cable tension during installation. As described above in detail using one embodiment, the tire type laying machine according to the present invention has the following effects.

The structure is such that only the upper tire drive system performs the crimping release operation, while the lower tire drive system only rotates and does not perform the crimping release operation, eliminating the need for a mechanism to synchronize the crimping release actions of the upper and lower tires, simplifying the structure. Become.

Since the pressure and release operation of the upper tire is performed using a vertical direct motion system, the overall length of the laying machine can be shortened.

A brake is installed on each tire drive system to hold the cable when stopped, and the hydraulic actuators for each brake are hydraulically connected in parallel, so the brake torque of each brake is constant and acts as a shear limiter when stopped. I can do it. In the hydraulic motor circuit of each tire drive system, the hydraulic circuits of the upper and lower tires of the tire pair are connected in series, and the hydraulic circuits of adjacent tire pairs are connected in parallel, so slippage between the cable and each tire can be prevented, and the hydraulic circuits of the upper and lower tires of each tire pair are connected in parallel. The negative number of shares will be equal.

Most of the load during cable installation is absorbed by the IJ leaf valve for load control installed in the hydraulic motor circuit, so the hydraulic pump unit for driving the tires can cover the load during cable drawing. It can be made as relatively small and lightweight as possible.

Since the set value of the load control glue leaf valve can be automatically controlled, cable installation can be carried out while adjusting the cable tension.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the main parts of a tire-type laying machine according to the present invention, FIG. 2 is a perspective view of an embodiment of the tire-type laying machine according to the present invention, and FIG.
The figure is a side view of the embodiment when the cable is pinched, Figure 4 is a side view of the embodiment when the tire is opened, Figure 5 is a sectional view showing the structure of the main part of the embodiment, and Figure 6 is Its left side view, Figure 7 is a front view of a part of Figures 5 and 6, Figure 8 is A in Figure 7.
-A sectional view and FIG. 9 is a hydraulic system diagram of the embodiment device. In the drawing, 1 and 2 are tires, 3 and 4 are drive parts, 6 is a tire unit, 9 is a brake, 11 is a hydraulic motor, 14 is a link mechanism, 22 is a crimping cylinder, 29 is a cable, 3
5 is a relief valve for load control, 41 is a switching valve, and 44 is a main pressure oil pump. Figure 1 Figure 2 Figure 3 Figure 4 Figure 6 Figure 7 Figure 8 Figure 5 Figure 9

Claims (1)

[Scope of Claims] 1. In a tire-type laying machine in which a plurality of tire pairs consisting of two tires facing each other vertically are arranged in tandem and a cable is fed by sandwiching the cable between the tire pairs, the upper tire of the tire pair is It is equipped with a vertical movement mechanism that moves the tire up and down in a straight line, and each tire is equipped with a hydraulic motor that drives and rotates the tire, and the hydraulic motors of the upper and lower tires forming a pair are maintained in series and in tandem A tire-type laying machine characterized in that a hydraulic circuit of the hydraulic motors is constructed by maintaining hydraulic motors of a pair of tires arranged in parallel. 2. In a tire-type laying machine that arranges a plurality of tire pairs consisting of two tires facing each other in tandem and sends out a cable by sandwiching the cable between these tire pairs, the tire is placed on the upper tire of the tire pair in a straight line. Equipped with a vertical movement mechanism that moves up and down, each tire is equipped with a hydraulic motor that drives and rotates the tire, and the hydraulic motors of the upper and lower tires forming a pair of tires are maintained in series, and the liquid of the pair of tires arranged in tandem is The hydraulic motors are connected in parallel to form a hydraulic circuit for these hydraulic motors, each tire is provided with a brake, and the load when the cable is stopped is borne equally by each pair of tires. A tire-type laying machine. 3. In a tire-type laying machine in which a plurality of pairs of tires consisting of two tires facing each other are arranged in tandem, and a cable is fed out by sandwiching the tire pairs, the upper tire of the pair of tires is placed in a straight line vertically and vertically. Each tire is equipped with a hydraulic motor that drives and rotates the tire, and the hydraulic pressure motors of the upper and lower tires that form a pair of tires are maintained in series, and the hydraulic pressure of the pair of tires that are arranged in tandem is maintained in series. The motors are connected in parallel to form a hydraulic circuit for these hydraulic motors, a relief valve is provided in this hydraulic circuit, and the cable tension is controlled by controlling this set value. A tire-type laying machine.