JPS6255326A - Underwater leveler - Google Patents

Abstract

PURPOSE:To raise the finish accuracy of leveled face by a method in which a tamping roller is provided in a vertically movable manner to the back side of a leveler provided on the front side of a base frame which can be hung down and a sprint to push down the roller is provided between a support frame and the base frame. CONSTITUTION:A leveler is kept at the height of a leveling face by adjusting the length of a hanging wire 32, the hull is moved, and the leveler is dragged. Rubble 40 is roughly leveled by bilaterally moving the projection 7 of the leveler 4. The roughly leveled face is further leveled by the blade 5 of the leveler 4 and also by a press plate 6. A tamping roller 17 is further moved on the leveled face which applying the weight of a base frame 1 through a spring 20 to the roller 17 to compact the leveled face.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention is applicable to the unevenness leveling of the upper surface of underwater foundation rubble, leveling the unevenness of the underwater bottom after dredging, leveling the unevenness of the surface of the sand-filled surface, etc. The present invention relates to an underwater leveling tool for leveling the water.

[Conventional technology]

In general, in foundation work for port seawalls, breakwaters, etc.
After putting in seabed sand, rubble, etc., the top surface is evenly leveled. As a prior art of the leveling tool used for the leveling work, the applicant proposed the Japanese Patent Publication No. 50-61.
There is one shown in Publication No. 07.

The above-mentioned leveling tool includes a leveling member provided in the front part of a frame provided with a horizontal substrate, a rolling pressure roller arranged at the back of the leveling member, and
A pair of arm bars for wire connection are connected to both ends of the upper surface of the substrate, and the tip of each arm bar and the lower portions on both sides of the leveling member are connected by arm chains.

In addition, the above-mentioned leveling member has a large number of blades arranged in a comb-like shape, a push plate is placed between the front edges of the blades, and the tips of the blades are made to protrude below the lower edge of the push plate. be.

The above-mentioned leveling tool is, for example, suspended by a hanging wire of a hoist installed at the stern of a self-propelled deck loading vessel, sunk to the seabed, held on the planned leveling surface by adjusting the length of the hanging wire, and held on the planned leveling surface by adjusting the length of the hanging wire. The lead wire connected to the tip is wound up with a winch installed on the gable neck of the hull, and the leveling tool is pulled by the movement of the gatsuto boat in the shape where the lead wire is held at a predetermined length, and the surface to be leveled is It is used to straighten uneven land (rough leveling).

[Problem that the invention seeks to solve]

By the way, in the above-mentioned leveling tool, the roughening is done by the two actions of the scraping action of the lower end of the blade and the extrusion collapse action of the pushing plate, and then the smoothing is done by the rolling action of the trailing rolling pressure roller. However, since the weight of the rolling pressure roller is used as the rolling force, there is a disadvantage that the rolling force is weak and the rolling effect is poor.

Therefore, the technical object of the present invention is to eliminate the above-mentioned disadvantages and improve the rolling effect.

[Means for solving problems]

In order to solve the above problems, the present invention provides a spring for pushing down the roller between an underframe that supports a leveling member and a support member for a rolling pressure roller that is provided on the back of the leveling member so as to be movable up and down. The structure was designed to include the following.

[Effect]

As mentioned above, by providing a spring between the support member that supports the compaction roller and the underframe, the weight of the underframe acts on the compaction roller, increasing the rolling force by shifting the compaction roller. The upper surface leveled by the leveling member can be effectively rolled.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the underframe 1 includes a rectangular support plate 2, and hanging rings 3 are attached to both ends of the front and rear edges of the support plate 2. As shown in FIGS. Further, a leveling member 4 is supported at the lower front side of the support plate 2.

The leveling member 4 has a large number of arc-shaped blades 5 arranged in a comb-teeth pattern, the upper part of which is supported by the front part of the support plate 2, and a push plate 6 is passed between the central parts of the front edges of the blades 5. The lower end of the blade 5 is made to protrude a required length below the lower edge of the push plate 6. Further, on the front surface of the push plate 6, a plurality of protrusions 7 are provided with required intervals between the protrusions 7. As shown in FIGS. 1 and 3, this protruding portion 7 is sloped downward in the pulling direction of the leveling member 4, and has a plow-like shape with both sides sloped.

Further, a pair of support pieces 8 are attached to both front end portions of the upper surface of the support plate 2, and the rear end portion of the arm par 10 is supported by the support pieces 8 via a universal joint 9. A wire connector 11 is attached to the tip of the arm par 10. Further, one end of an arm chain 12 is connected to the distal end of the arm par 10 so that the mounting position can be changed, and the other end of the arm chain 12 is connected to the lower side surface of the leveling member 4.

A high-pressure water supply pipe 13 is disposed at the back of the leveling member 4, and a plurality of nozzles 14 are connected at equal intervals in the length direction on the front side of the supply pipe 13, and the high pressure water supplied to the supply pipe 13 is Water is injected from each nozzle 14 in front of the push plate 6. For this reason, the push plate 6 is provided with a hole 15 at a position facing the nozzle 14.

Furthermore, one end of a pair of roller arms 16 is rotatably supported at the center of both sides of the leveling member 4, and a compaction roller 17 is rotatably provided between the other ends of the roller arms 16. There is.

The lower end of a rod 18 is rotatably attached to the other end of the roller arm 16 via a pin 19, and the upper end of a spring 20 fitted to the lower part of the rod 18 is connected to a support plate
The spring 2 is supported by the top plate 22 of the spring box 21 provided in the
The lower end of the frame 1 is brought into contact with the roller arm 16 and the roller arm 16 is pushed down, so that the weight of the underframe 1 is applied to the rolling pressure roller 17.

In addition, in order to increase the rolling force of the rolling pressure roller 17, the support plate 2
It is preferable to provide a weight 23 on the upper surface of the holder.

Further, a spring receiver 24 is attached to the upper part of the rod 18, and a buffer spring 25 is fitted on the outside of the rod 18 between the spring receiver 24 and the top plate 22. The buffer spring 25 is contracted to prevent the roller arm 16 from instantaneously moving downward.

In the case of the embodiment, as shown in FIG.
An oval movable ring 26 is attached to the other end of 6, while a pair of oval fixed rings 27 are fixed to the support plate 2, and a brake pin 28 is removably inserted between both rings 26 and 27. Although the amount of elevation of the roller arm 16 is limited, the above mechanism may be omitted.

The leveling tool shown in the embodiment has the above-mentioned structure, and in order to level the foundation rubble using this leveling tool, as shown in FIG. The leveling tool is suspended with a hanging wire 32 and submerged in water, and the lead wire 33 connected to the tip of the arm par 10 is wound up with a winch (not shown) provided at the bow to maintain the lead wire 33 at a predetermined length. , the leveling tool is towed by the movement of the hull 30.

In addition, in order to move the hull 30 using self-propelled propulsion, and to maintain work safety and a level position in narrow sea areas,
It is possible to adopt a method in which the bow and stern anchor ropes, 35, are anchored, each rope is wound up with a winch, and then the rope is unwound and self-propelled.

Now, when the leveling tool is held at the height of the planned leveling surface by adjusting the length of the hanging wire 32 and the leveling tool is pulled by moving the hull 30, the rubble 40 above the planned leveling surface will move ahead. It is pushed aside by the protrusion 7 to the left and right in the direction of movement, and the top surface of the rubble is roughly leveled. The roughly leveled surface is leveled by the lower end of the trailing blade 5 and is also leveled by pushing out the push plate 6, and the trailing rolling pressure roller 17 rolls on the leveling surface. Subject to pressure. At this time, since the weight of the underframe 1 is applied to the rolling roller 17 via the spring 20, the upper surface that has been leveled in advance by the leveling member 4 can be rolled very effectively.

In the case of the embodiment, the rolling pressure roller is supported by the roller arm so that the rolling pressure roller can be moved up and down, but the support of the rolling pressure roller is not limited to this.

〔effect〕

As described above, in this invention, the spring is arranged between the support member that supports the compaction roller and the underframe so that the weight of the underframe is applied to the compaction roller, so that the transfer of the compaction roller is prevented. The rolling force can be increased compared to conventional ones, and it can have a great effect on improving the finishing accuracy of the leveled surface.

[Brief explanation of drawings]

Figure 1 shows this 331! FIG. 2 is a partially cutaway front view of the same, FIG. 3 is an enlarged plan view of a portion of the same, FIG. 4 is a perspective view of the same, FIG. 5 is a longitudinal sectional front view of the same as the above, and FIG. 6 is a side view showing the state of use of the same.

Claims (1)

[Claims] In a towable underwater leveling tool, a leveling member for leveling is provided on the front side of a hangable underframe, and a rolling pressure roller is provided on the back of the leveling member so as to be movable up and down. An underwater leveling tool characterized in that a spring for pushing down the roller is provided between the supporting member and the underframe.