CN107807012B

CN107807012B - Mechanical collector for underwater solid matter

Info

Publication number: CN107807012B
Application number: CN201711303946.5A
Authority: CN
Inventors: 郑牧之
Original assignee: Individual
Current assignee: Suzhou Multitech Automation Equipment Co Ltd
Priority date: 2017-12-11
Filing date: 2017-12-11
Publication date: 2020-03-10
Anticipated expiration: 2037-12-11
Also published as: CN107807012A

Abstract

The traditional underwater collector tightens two grab buckets by a steel wire rope to fold the grab buckets to grab a soil sample, and the clamping force during folding is often insufficient. And the steel wire rope is easy to wear, and the hand is easily injured by burrs generated by wear, so that infection is generated. The invention respectively fixes clamping arms 5 on two grab bucket back plates 4 of a collector, the end parts of the clamping arms 5 are hinged with pull rods 2, and the end parts of the two pull rods 2 are hinged with each other, so that the two clamping arms 5 and the pull rods 2 form a parallelogram with a variable angle. When underwater collection operation is carried out, the two grab buckets are firstly opened, the spring piece 6 is pressed to enable the hook 9 to hook the pull rod 2, the collector sinks to the water bottom, the hook 9 is separated from the pull rod 2, the rope 1 can be slowly pulled at the moment, the parallelogram is upwards stretched and transversely contracted, and the two clamping arms 5 drive the two grab buckets to fold and grab a soil sample.

Description

Mechanical collector for underwater solid matter

Technical Field

The invention belongs to a mechanical collector for collecting underwater solid matters of an underwater soil sample.

Background

Two grab buckets of traditional submarine collector pull wire rope behind the contact target soil face, are tightened two grab buckets by wire rope and are made it fold and snatch soil sample, and the clamp force when folding is often suspiciously not enough, and wire rope easily wears out, and is not durable, and the hand is hindered very easily to the burr that the wearing and tearing produced, and the operation area often has the pollution of different degrees, produces easily to infect behind the wire burr hurts the hand.

Disclosure of Invention

The invention respectively fixes clamping arms 5 on back plates 4 of two grab buckets 13 of a collector, the end parts of the clamping arms 5 are hinged with pull rods 2, and the end parts of the two pull rods 2 are hinged with each other, so that the two clamping arms 5 and the two pull rods 2 form a parallelogram with a variable angle.

For the structure, the invention designs two modes.

Mode 1:

two back plates 4 are respectively provided with a long hole 8, two clamping arms 5 are crossed under a rotating shaft 3 of a hinged grab bucket 13, and the other ends of two pull rods 2 are hinged above the rotating shaft 3.

Mode 2:

the outer surface of the back plate 4 is respectively deviated from the fixed clamping arms 5 leftwards and rightwards along the center line, and the two clamping arms 5 are crossed above the rotating shaft 3.

In order to keep the two grab buckets 13 of the collector open before the two grab buckets 13 reach the water bottom, a spring piece 6 with a hook 9 is arranged on one clamping arm 5, and the spring piece 6 is slightly pressed to enable the hook 9 to hook the pull rod 2 to keep close to the clamping arm 5, so that the two grab buckets 13 of the collector are kept open.

In order to improve the dredging and meshing performance, the invention designs two ways to improve the folding openings of two grab buckets 13, wherein an upper wedge opening 10 and a lower wedge opening 11 are added in the folding openings to form a section of overlapping part, and the folding openings are made into large saw teeth 12 which are meshed with each other, and the two ways can be independently applied or simultaneously applied.

When underwater acquisition operation is carried out, the two grab buckets 13 are firstly opened, the spring piece 6 is pressed to enable the hook 9 to hook the pull rod 2, and meanwhile, the rope 1 is used for lifting the hinged point of the two pull rods 2.

The rope 1 is gradually put down to enable the collector to sink to the water bottom, the pull rod 2 does not tend to leave the clamping arms 5 any more, the hook 9 is separated from the pull rod 2 immediately, the rope 1 can be pulled slowly at the moment, the parallelogram is stretched upwards and transversely contracted, and the two clamping arms 5 drive the two grab buckets 13 to fold to grab the soil sample.

Description of the drawings:

the figures are schematic. For ease of illustration, the side panels of the grab bucket 13, shown in figures 1 and 3 with the front panel removed

Figure 1 shows a mode 1, when two grab buckets 13 of the collector are opened and sink,

FIG. 2 is a top view of FIG. 1

Fig. 3 shows a mode 1, when two grab buckets 13 of the collector are folded and lifted upwards,

FIG. 4 shows the mode 2, when the two grab buckets 13 of the collector are opened and sink

FIG. 5 shows a mode 2 in which two grapples 13 of the harvester are closed and lifted up

FIG. 6 is a partial cross-sectional view of the spring plate and the clamping arm and the pull rod.

FIG. 7 is a partial cross-sectional view of an upper wedge and a lower wedge of a closure opening

FIG. 8 is a partial view of a large serration with a fold

The specific implementation mode is as follows:

the two clamping arms 5 are respectively fixed on the back plates 4 of the two grab buckets 13 of the collector, the ends of the clamping arms 5 are hinged with the pull rods 2, the ends of the two pull rods 2 are hinged with each other, and thus the two clamping arms 5 and the two pull rods 2 form a parallelogram with a variable angle.

For the structure, the invention designs two modes.

Mode 1:

the back plates 4 of the two grab buckets 13 are respectively provided with a long hole 8, one end of the long hole 8 in the length direction reaches the rotating shaft 3, the length is slightly shorter than that of the back plates 4, one side of the long hole 8 in the width direction is positioned at the center line of the back plates 4, then the width is respectively reached leftwards and rightwards, and the clamping arm 5 and the pull rod 2 which are just hinged in width freely move in the middle of the long hole 8.

The clamping arms 5 are obliquely fixed on one side of the inner surface of the back plate 4 close to the central line of the long hole 8, the two clamping arms 5 are crossed under the rotating shaft 3, the other ends of the clamping arms 5 are positioned near the folding opening of the opposite grab bucket when the two grab buckets 13 of the collector are opened, the end parts are hinged with the pull rods 2, and the other ends of the two pull rods 2 are mutually hinged above the rotating shaft 3.

The clamping arm 5 is also provided with a flexible and elastic mud guard 7, the size of the mud guard 7 is slightly larger than that of the long hole 8, when the clamping arm 5 passes through the long hole 8 to lift, the mud guard 7 can be shielded in the back plate 4 by the mud guard so as to avoid the leakage of the mud from the long hole 8.

Mode 2:

the outer surfaces of the back plates 4 of the two grab buckets 13 are respectively fixed with clamping arms 5 at positions deviated from the left to the right along the center line, the two clamping arms 5 are crossed above the rotating shaft 3, and the other ends of the two pull rods 2 are hinged above the crossed position. The structure is simple, the long hole 8 and the mud guard 7 are omitted, but when the two folding openings are folded, the parallelogram formed by the two clamping arms 5 and the pull rod 2 is drawn to be close to a square, so that the folding force converted from gravity is not amplified much, of course, the clamping arms 4 can be lengthened to enlarge the lever for increasing the folding force, but the size of the collector is increased.

In order to keep the two grapples 13 of the collector open before reaching the water bottom, a spring piece 6 with a hook 9 is arranged on one clamping arm 5, the hook 9 is made wider to enhance the hook force, the spring piece 6 is slightly pressed to enable the hook 9 to hook the pull rod 2 to keep close to the clamping arm 5, and therefore the collector is kept open. Releasing the spring plate 6 to its normal position disengages its hook 9 from the drawbar 2.

In order to improve the dredging and occlusion performance, the invention designs two modes to improve the closure opening, wherein the upper wedge opening 10 and the lower wedge opening 11 are added to the closure opening to form a section of overlapped part, and the large saw teeth 12 which are occluded with each other are arranged on the closure opening.

When underwater collection operation is carried out, the two grab buckets are firstly opened, the parallelogram formed by the two clamping arms 5 and the two pull rods 2 is folded, at the moment, the spring piece 6 is pressed to enable the hook 9 to hook the pull rods 2, meanwhile, the hinge points of the two pull rods 2 are lifted by the rope 1 to enable the pull rods 2 to tend to leave the clamping arms 5, the hook 9 is enabled to tightly hook the pull rods 2 to enable the pull rods 2 not to leave the clamping arms 5, the parallelogram formed by the clamping arms 5 and the pull rods 2 cannot be folded and unfolded, and the two grab buckets 5 are kept opened.

The rope 1 is gradually put down to enable the collector to sink to the water bottom, the collector loses sinking force under the bearing of the water bottom, the rope 1 does not provide pulling force for a hinge point of the pull rod 2 any more, the pull rod 2 does not tend to leave the clamping arm 5 any more, so the spring piece 6 is elastic to enable the spring piece to recover to a normal state, the hook 9 is separated from the pull rod 2, the rope 1 can be slowly pulled at the moment, when the rope 1 pulls the hinge point of the pull rod 2 to lift, the parallelogram is upwards stretched and transversely contracted, the two clamping arms 5 drive the two grab buckets to fold and grab a soil sample, and the weight of the whole collector and the soil sample provides enough clamping force for the two grab buckets while the parallelogram is upwards stretched.

Claims

1. A mechanical collector for underwater solid matters is characterized in that:

the two grab bucket back plates are respectively fixed with a clamping arm, the end parts of the clamping arms are hinged with pull rods, and the end parts of the two pull rods are hinged with each other, so that the two clamping arms and the pull rods form a parallelogram with a variable angle;

two back plates are respectively provided with a long hole, one end of the long hole in the length direction is connected to a rotating shaft for hinging two grab buckets, the length of the long hole is slightly shorter than that of the back plates, one side of the long hole in the width direction is positioned at the center line of the back plates, then the long hole respectively reaches the width from left to right, and a clamping arm and a pull rod which are just hinged in width freely move in the middle of the long hole;

the clamping arms are obliquely fixed on one side of the inner surface of the back plate close to the central line of the long hole, the two clamping arms are crossed under the rotating shaft, the other ends of the clamping arms are positioned near the folding opening of the opposite grab bucket when the collector is opened, the end parts of the clamping arms are hinged with the pull rods, and the other ends of the two pull rods are mutually hinged above the rotating shaft;

the clamping arm is also provided with a mud guard which can be bent and elastic and has a size slightly larger than the long hole, and when the clamping arm penetrates through the long hole to lift, the mud guard can cover the long hole in the back plate, so that the leakage of mud from the long hole is avoided.