An elastic fixed connection block for a reamer

Abstract

The present invention relates to an elastic fixed connection block for a reamer, comprising a fixed connection block body, the fixed connection block body is a rubber strip, a semi-cylindrical convex block is formed on one side of the rubber strip, a plurality of cavity holes are formed on the upper surface of the semi-cylindrical convex block at evenly spaced intervals radially inward, a mounting groove is formed on the other side of the rubber strip opposite to the semi-cylindrical convex, a plurality of metal columns are evenly spaced and vertically embedded in the mounting groove, half of the metal column is embedded in the rubber strip, and a complete fixed connection block is formed with the rubber strip. The present invention has a reasonable structure, a firm connection, and is easy to disassemble and assemble.

Description

Technical Field

[0001] The invention belongs to the field of auger fixing devices for dredging ships, in particular to an elastic fixing connecting block for auger. Background Art

[0002] With the acceleration of infrastructure construction in my country, a large amount of sand, gravel, cement and other auxiliary materials are needed. Dredgers are a common special equipment used for mining and excavating sand and gravel.

[0003] Different types of reamers are installed in dredgers to mine different types of sand and gravel. The existing connection device of the reamers generally includes a connection block similar to a pin to fix the reamers and the knife holder. The existing connection blocks are generally made of cast iron or other metal materials, but such connection blocks have certain shortcomings during use. The connection blocks made of metal materials often rust during use because they come into contact with water and other media, and the rusted connection blocks will get stuck in the knife holder and the reamers. In addition, since the reamers and knife holders are mostly made of metal materials, the deformation and expansion of the reamers, knife holders and connection blocks after being affected by the environment and temperature are also similar, which will aggravate the expansion of the connection block and the effect of the knife holder and the reamers, making it difficult to disassemble the reamers.

[0004] Through the search of patent literature, the following relevant documents were found:

[0005] 1. A connecting and fixing block for a reamer (CN206153686U), comprising a metal strip, a protrusion formed in the vertical direction on the rear end face of the metal strip for embedding with a cutter seat, characterized in that: a groove is formed on one end perpendicular to the end face of the metal strip on which the protrusion is formed, an embedding groove is formed in the same end face of the upper and lower ends of the groove which are arranged opposite to each other, the upper and lower ends of a movable metal strip are respectively embedded in the two embedding grooves, a vulcanized rubber strip is installed between the end faces on the same side of the movable metal strip and the groove formed by the metal strip, and the two side ends of the vulcanized rubber strip are respectively fixedly installed with the inner end face of the movable metal strip and the inner end face of the groove formed by the metal strip.

[0006] 2. A combined reamer fixing and connecting device (CN206157795U), comprising a fixing plate for being embedded in a reamer, a through hole being formed at the lower end of the fixing plate, and a thread being formed on the inner edge of the through hole, characterized in that: one end of a bolt is installed in the through hole, and the outer edge of the bolt between the front end surface of the fixing plate and the bolt cap is provided with a plurality of cylindrical isolation pads made of a flexible material, and a gasket is installed between each two adjacent cylindrical isolation pads and between the cylindrical isolation pad and the front end surface of the fixing plate.

[0007] By comparing the technical features, the above-mentioned public patent documents are different from the technical structure of the patent of the present invention and will not affect the creativity and novelty of the present invention application. Summary of the invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an elastic fixed connection block for a reamer which has a reasonable structure, a firm connection and is easy to disassemble and assemble.

[0009] The present invention solves the technical problem by adopting the following technical solutions:

[0010] A resilient fixed connection block for a reamer comprises a fixed connection block body, wherein the fixed connection block body is a rubber strip, a semi-cylindrical protrusion is formed on one side of the rubber strip, a plurality of cavity holes are formed on the upper surface of the semi-cylindrical protrusion at evenly spaced intervals radially inward, a mounting groove is formed on the other side of the rubber strip opposite to the semi-cylindrical protrusion, a plurality of metal columns are evenly spaced and vertically embedded in the mounting groove, half of the metal column is embedded in the rubber strip, and forms a complete fixed connection block with the rubber strip.

[0011] Moreover, a woven fabric layer is arranged inside the protrusion.

[0012] Moreover, the opening direction of the cavity hole is in a vertical corresponding state with the column wall of the metal column in the rubber strip.

[0013] The advantages and positive effects of the present invention are:

[0014] 1. The present invention adopts an elastic fixed connection piece, which not only increases the sealing of the fixed connection, but also vertically embeds a plurality of metal columns in the connection part, which greatly enhances the firmness of the connection and forms a complete fixed connection block. The metal column as a whole can be displaced along the extension direction of the installation groove made by the rubber strip. At the same time, since the rubber strip itself is elastic, during the process of disassembling the connection and fixing block, the rubber strip can be squeezed toward the protruding block side and the connection block can be slightly swung left and right. At this time, the side with the metal column embedded is compressed toward the protruding block to adjust the width of the fixed connection block. At the same time, due to the twisting of the fixed connection block, the outer end face of the metal column of the rubber strip and the end face of the protruding block are separated from the reamer and the knife seat. At this time, the operator can pull the connection and fixing block out of the pin hole.

[0015] 2. The shape of the protrusion of the present invention is semi-cylindrical. When the surface of the metal column is rusted, the semi-cylindrical design increases the deformation of the pin hole, so that the connecting block can be quickly rotated and pulled out.

[0016] 3. The present invention provides a woven fabric layer inside the protrusion to limit the deformation of the protrusion, thereby avoiding the problem of difficulty in disassembly caused by the expansion of the rubber strip due to temperature or environmental influences, resulting in interference fit between the protrusion and the reamer and the knife seat.

[0017] 4. The hole direction of the cavity hole of the present invention and the column wall of the metal column are perpendicular to each other in the rubber strip, so that the fixed connection block is evenly stressed in the pin hole, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting groove side of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the cavity hole side of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0022] A resilient fixed connection block for a reamer comprises a fixed connection block body, wherein the fixed connection block body is a rubber strip 3 made in one piece, a semi-cylindrical protrusion 4 is made in one end face of one side of the rubber strip, a plurality of cavity holes 6 are evenly spaced radially inwardly formed on the upper surface of the semi-cylindrical protrusion for embedding with a tool holder, and at the same time, the arrangement of the cavity holes enables the fixed connection block to play an extrusion buffering role, and at the same time, due to the mutual extrusion between the end face of the cavity hole and the inner surface of the tool holder, an adsorption-type end face seal is achieved, so that one side of the fixed connection block is tightly embedded with the tool holder, and a mounting groove 1 is made on the opposite side of the protrusion of the rubber strip, and a plurality of metal columns 2 are evenly spaced vertically embedded in the mounting groove, and half of the metal column is embedded in the rubber strip to form a complete fixed connection block with the rubber strip.

[0023] In the specific implementation of the present invention, a woven fabric layer 5 is arranged inside the convex block, which improves the deformation and bending ability of the convex block and prolongs the service life of the rubber.

[0024] In a specific implementation of the present invention, the shape of the protrusion is a semi-cylinder. When the metal column is rusted, the semi-cylindrical design increases the deformation of the pin hole, so that the connecting block can be quickly rotated and pulled out.

[0025] The working process of the present invention is:

[0026] When the present invention is used, after the operator fits the reamer and the knife seat together, the operator inserts the fixed connection block through the pin hole to fix it. When the metal column of the fixed connection block is rusted, the operator can squeeze the rubber strip toward the protruding block side and slightly swing the connection block left and right. At this time, the side with the metal column embedded is compressed toward the protruding block to adjust the width of the fixed connection block. At the same time, due to the twisting of the fixed connection block, the outer end face of the metal column of the rubber strip and the end face of the protruding block are separated from the reamer and the knife seat. At this time, the operator can pull the connection fixing block out of the pin hole.

[0027] In the present invention, the metal column is vertically embedded in the mounting groove on one side of the rubber strip to form a complete fixed connection block, so that the metal column as a whole can be displaced along the extension direction of the mounting groove made by the rubber strip. Since the rubber strip itself has elasticity, during the process of disassembling the connection and fixing block, the rubber strip can be squeezed toward the protruding block side and the connection block can be slightly swung left and right. At this time, the side with the metal column embedded is compressed toward the protruding block to adjust the width of the fixed connection block. At the same time, due to the twisting of the fixed connection block, the outer end face of the metal column of the rubber strip and the end face of the protruding block are both separated from the reamer and the knife seat. At this time, the operator can pull the connection and fixing block out of the pin hole.

[0028] A convex block is formed on one side of the fixed connection block, and the convex block is in a semi-cylindrical shape and is used for being firmly fixed to the knife seat;

[0029] A fabric layer is provided inside the protrusion to limit the deformation of the protrusion, thereby preventing the protrusion from having an interference fit with the reamer and the knife seat due to expansion of the rubber strip caused by temperature or environmental influences, thereby preventing the protrusion from being difficult to disassemble due to the interference fit with the reamer and the knife seat.

[0030] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An elastic fixed connection block for a reamer, characterized in that: The fixed connection block body is a rubber strip, a semi-cylindrical protrusion is formed on one side of the rubber strip, a plurality of cavity holes are formed on the upper surface of the semi-cylindrical protrusion at regular intervals radially inward, a mounting groove is formed on the other side of the rubber strip opposite to the semi-cylindrical protrusion, a plurality of metal columns are vertically embedded in the mounting groove at regular intervals, half of the metal column is embedded in the rubber strip, and a complete fixed connection block is formed with the rubber strip; a woven fabric layer is arranged in the semi-cylindrical protrusion; the opening direction of the cavity hole is in a vertical corresponding state with the column wall of the metal column in the rubber strip; The use process of the fixed connecting block: After the operator matches the reamer and the knife holder, the fixed connecting block can be inserted through the pin hole to fix it. When the metal column of the fixed connecting block is rusted, the operator can squeeze the rubber strip toward the protrusion side and slightly swing the connecting block left and right. The side with the metal column embedded is compressed toward the protrusion to adjust the width of the fixed connecting block. At the same time, due to the twisting of the fixed connecting block, the outer end face of the metal column of the rubber strip and the end face of the protrusion are separated from the reamer and the knife holder. At this time, the operator can pull the connecting fixing block out of the pin hole.

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