KR960012861B1 - Roll for reinforcing rod - Google Patents

Abstract

This roll is produced by inserting roll of hard alloy as ceramic alloy high-speed steel to the fixed part of the rotation shaft bar and tight fixing to a fixed tube. This roll provides a combination of good durability and convenience of disassembling and assembling. This roll includes rotation shaft bar(1), a shaft part of taper(102), circular projection(1a), oil storage chamber(101)(501)(801), press-ring figure of piston type(6)(9), space supporting parts(3)(4), screw part(104), fixed nut(8), roll(2), fixed tube(7), spring(11), center hole(701) of taper type, oval figure(702) of outside diameter of center hole, fixed groove(703), fixed projections(301)(401) of space supporting part, and center hole(201) of elliptical type in roll.

Description

Rebar Rolling Roll

1 is a cross-sectional view of the present invention.

2 is an exploded perspective view of the present invention.

3 is a cross-sectional view of FIG.

4 and 5 are diagrams illustrating a conventional rolling roll.

* Explanation of symbols for main parts of the drawings

1: rotating shaft rod 1a: annular projection jaw

101: oil storage chamber 102: tape type shaft

103: key groove 104: screw portion

2: Rolling rolls 3, 4: Spacing zone

201: center hole 301, 401: key

5: pressure wheel body 501: oil storage chamber

502: oil valve connection port 6: pressurized wheel body

7: fixed tube 7a: annular projection jaw

701: center hole 702: ellipsoid

703: fixing groove 8: fixing nut

801: oil storage chamber 802: oil valve connection port

9: pressurized wheel body 10: household wheel body support

10a: bolt 11: spring

13 fluid inlet hole 14 stepping

0: O-RING

The present invention relates to a reinforcing roll roll formed by inserting a rolling roll made of a hard alloy such as cemented carbide or high speed steel into a fixed portion of a rotary shaft rod to be fixed to a fixed pipe without loosening.

Conventional rolling rolls are formed by processing the surface of the rotating shaft rod in the shape of a tape as shown in FIG. 4, inserting a roll and inserting a fixed tube between the roll and the rotating shaft rod, and then attaching a support ring to the outside of the fixed tube so that the fixing tube does not escape As shown in FIG. 5, a fixed tube is inserted into the surface of the rotating shaft rod and a roll is adhered to the outer surface of the fixed tube to be bonded and fixed, or as shown in FIG. 6, a tape-shaped shaft is formed on the surface of the rotating shaft rod. And a pressure device (B) is installed to fix the pressure medium to the roll body in contact with the rotating shaft rod.

However, the conventional rolled roll as described above has a significant problem in fixing and disassembling and assembling the roll and the fixed tube, so that the durability is not maintained.

The present invention has been completed through many years of research and experiments to correct the various problems as described above to be an efficient and durable product assembling and disassembly as described in more detail based on the drawings as follows.

1 to 3 illustrate the basic configuration of the present invention.

That is, the rotating shaft rod 1 of the present invention is formed in the tapered shaft portion 102 as shown in Figure 1 to form a ring fixing projection (1a) at the end of the larger diameter to fill the lubrication valve connector 103 in the main wall ) To make the holding oil 101 in it, and to open the side, and to put the piston type pressure wheel body 6 into it, to exert its press function, and to the inner space between the holding portions 3 and 4 and the fixed pipe. (7) is inserted to secure the rolling roll (2) between the interval holding zones when the two rolling rollers are sandwiched by the pressing wheel body (5) between the interval holding zones and the oil storage chamber 501 is provided inside the pressure wheel body. The lubrication valve connector 502 is formed on the circumferential wall, and the piston type pressurizing wheel body 6 is inserted into the opening of the oil storage chamber so that the pressing function is exerted. Screw the fixing nut (8) in and tighten the fixing nut (8) Create an oil reservoir 801 in the inside to drill the oil supply valve connector 802 in the circumferential wall and open the inside of the oil reservoir so that a piston-type pressure wheel body 9 can be inserted therein to exert a pressure function. The fixing nut can press the outside of the fixing tube (7), and the spring (11) is inserted between the fixing tube and the fixing nut to allow a buffering action at the fixing portion. When the oil pressure is maintained in the oil storage chamber, the oil pressure in the oil storage chamber is maintained by the oil supply valve when the oil pressure is maintained, and when the oil pressure is released, the oil pressure in the oil storage chamber is managed by the forced release.

Meanwhile, as shown in FIG. 2 and FIG. 3, the fixed tube 7 of the present invention has a center hole 701 formed in a garden shape so as to be in close contact with the tape angle of the tape-shaped shaft portion 102, but the outer diameter is an ellipsoid ( 702 is designed to maintain the same diameter of the inlet and outlet, and the ellipsoid surface has a fixed groove 703 is coupled to the spacing groove and the key (301, 401).

Therefore, the slip is prevented, and the center hole 201 of the rolling roll 2 and the center hole of the spacing retainer 3 and 4 are formed in the same elliptical shape as the outer diameter of the fixed tube, and the annular protrusion 7a of the fixed tube 7 is formed. ) Is coupled to the recessed groove formed inside the center hole of the outer space retaining hole (4), so that the outer surface is maintained flat, and the O-ring is engaged to the side contact portion of the space retaining hole and the rolling roll. Will be maintained.

As described above, the rotating shaft rod 1 of the present invention is forged steel adopting SNCM 439 material, and is forged after annealing to be quenched and tempered at a strict time and temperature through a transverse line to be processed into a better structure and elastic rotating shaft rod. In order to minimize surface abrasion, the surface of the tape shaft part is hard chrome plated to make the surface of high hardness to make the disassembly and assembly of the fixed tube easier and the coupling part of the pressurized wheel body, the rolling roller, and the space holder is composed of ellipsoid In this case, the contact retention force in the system is increased and the sliding phenomenon is minimized, and the spring 11 is used in the pressurizing part to protect the rotating shaft rod from the impact load and to prevent the pushing wheel body from being pushed out. Work is convenient and oil pressure of the rotating shaft Hydraulically operated piston type pressurized wheel body is used for assembly, so it is easy to be fixed and dismantled by relying on simple oil pump without separate tools when assembling rolling rolls. O-Ring is involved to prevent the infiltration of cooling water, so it is possible to obtain a durable rolling roll that is easy to disassemble and easy to use.

Claims (2)

A ring-shaped shaft jaw (1a) is formed at the tapered shaft portion (102) of the rotating shaft rod (1) at the end of the larger diameter, and the oil storage chamber (101) is formed therein so that the side is opened. (6) is inserted into the oil storage chamber 101 in accordance with the operation to apply a hydraulic pressure in the interior of the oil storage chamber between the pressurizing means and the interval holding means (3) (4) for the pressing wheel body 6 to exert a pressing function. A pressurizing wheel body 5 and a tape-shaped pendulum in which a pressurizing wheel body exerts a pressing function in accordance with an operation of applying a hydraulic pressure to the oil storage chamber by forming a 501 to open the side surface and equipping the piston-type pressurizing wheel body 6 therein. A storage oil chamber 801 is formed inside the fixing nut 8 which is screwed into the threaded portion 104 formed outside the small diameter portion of the 102 to open the inside, and a piston-type pressure wheel body 9 is installed therein. To pressurize the oil reservoir A means for fixing the rolling roll 2 between the fixed tube and the spacing retainer 3 and 4 by using a fixing nut equipped with a pressing means and installing a spring 11 between the pressing nut and the fixing tube 7 The wheel body 9 has a central hole 701 in the shape of a tape, and the inner diameter is a garden, and the outer diameter is formed of an ellipsoidal body 702 to form the same diameter of the inlet and the outlet so as to form a fixing groove 703 on the surface. Reinforced rolling rolls to be coupled to the fixing projections (301) (401) of the gap maintaining and to form a center hole 201 of the rolling roll in an oval shape to be composed of an exploded assembly. The spacing retaining port (4) of claim 1 is formed with a recessed groove in the side of the reinforcing rolled roll formed in the plane by forming the outer annular projection jaw (7a) of the fixed tube (7) at the center hole inlet.