SU1007898A1 - Apparatus for disassembling joint elements - Google Patents

Abstract

Arrangements for component removal SOEDINENIY- comprising a rod with a blind axial hole and a drive of tlichayuschees in that, for the purpose of dismantling elements povnieni reliability compounds, it is provided with an adjustable clamp attached to the rod, and a spring-loaded extension located in a blind axial bore rod and the extension is installed with the possibility of translational movement relative to the rod along the grooves and protrusions, additionally made on the extension and the rod and having the possibility of interfacing with each other, moreover, the rod is pivotally connected to an actuator.

Description

The invention relates to metalworking, in particular to disassembling stuck threaded connections, as well as dismantling pipes loosened in tube plates and caps: Torah of heat exchangers, and can be used in repairing equipment in shipbuilding, ship repair, energy, chemical and other industries. x industrial.

A device for disassembling elements of compounds is known, which contains a rod with a blind axial bore and an actuator l. .

A disadvantage of the known device is that it does not remove the unscrewed or dangling threaded ends and does not ensure the preservation of the thread of the female part.

The purpose of the invention. - Improving the reliability of the repair, as much as elements of the compounds.

This goal is achieved by the fact that a device for disassembling joint elements, comprising a rod with a blind hole and an actuator, is provided with an adjustable clamp fixed to the rod and a spring-loaded extension tube located in the blind axial hole of the rod, the extension tube being displaceably displaced relative to the rod along the grooves and protrusions, additionally made on the extender and the rod and immegesim the possibility of corresponding mating between each other, in addition, the rod is connected to the the house is hinged.

FIG. 1 shows a device for dismantling elements of connections, with a full view; in fig. 2 - the relative position of the projections of the extension with the grooves of the rod, section AA in FIG. 1,. The device consists of a core 1, on one side. Which is made, a cylindrical bore 2 and longitudinal grooves 3. In a cylindrical bore 2 a ball head 4 of a hinge 5 is installed, interacting with the longitudinal grooves 3 through a finger b. Dru. The ball head 7 of the hinge 5 of St. Ehan through the finger 8 and the grooves 9 from the ends of the holder 10 installed in the drive (not shown), the hinge 5 serves to transfer torque from the drive to the rod 1. On the other hand, in a blind axial bore 11, the rod 1 is arranged with the possibility of longitudinal movement of the extension 12, which consists of the pin 13, the rod connected to the cylindrical sleeve 14, on which there are longitudinal projections. 15, interacting side surfaces 16 with grooves 17, cut into the side surface of the rod 1

Finger 13 is spring loaded 18 and connected to the longitudinal groove 19 of the rod 1 by a screw 20. The groove 19 and the screw 20 serve to prevent the finger 13 13 of the extension 12 from falling out of the hollow axial hole 11 of the rod 1. On the side of the sterile 1 there is a hole on the side of the sterile 1 21, in which a clamp 22 is installed, made in the form of, for example, an L-shaped bolt. The clamp 22 serves to secure the start of the turn 23. of the screw groove 24 of the remainder of the threaded end of the pin 25. In the chuck part 26, a ring groove 27 is bored to exit the cutting tool when cutting the SCREW groove 24,

The screw groove 24 of the triangular profile is cut on the inner surface of the pre-drilled hole 28 in such a way that there is a jumper 29 between the outer diameter of the groove 24 and the inner diameter of the existing thread of the remainder of the stud 25 25. The groove 24 has a step larger than the pitch of the existing stud 25 thread.

The device works as follows.

To remove residual stud 25, for example, by disassembling the joining elements, rod 1 is inserted into the pre-drilled hole 28 of the threaded end of the stud 25, with extension 12 resting against the bottom of the female part 26. Pressing the rod 1 along the longitudinal axis, compresses the spring. 18 under. by the action of the finger 13, the start of the turn 23 is fixed by the clamp 22 on the rod 1. Then the holder 10 is connected to a drive (not shown), the drive is turned on and a torque is transmitted through the hinge 5 to the rod 1.

The rod 1, rolling on the inner surface of the drilled hole 28 of the threaded end of the spindle to 25, winds the turns 23 of the helical groove 24, and the coil is detached from the female part 26 along the top of the helical groove 24, as in a weakened ijiecTy with a voltage concentrator the top of the groove 24. Since the detecting diameter of the rod 1 is less than the internal diameter of the drilled hole 28 of the threaded end of the stud 25, the length of the wound helix will be greater than the length of the threaded end of the stud 25, Therefore, when winding turns 23 .. The rod 1, under the action of the spring 18 and the winding turns 23, will move along the longitudinal axis towards the drive, as far as the thread is wound, and extend. 12, rolling together with the stern 1 along the drilled hole 28, will be in the original position i.e. resting on the bottom of the wrapping of the part 26. At the same time, the longitudinal protrusions 15 of the extender 12, interacting with the side surfaces 16, exit from the slots 17 of the rod 1. Increasing the length of the cylindrical surface of the rod 1 due to the extension of the extender 12 will wrap the entire tape of the thread to be dismantled; 25 "However, since the outer diameter of the core .1 is greater than the outer diameter of the longitudinal protrusions. 15 of the extender 12, the coils 23 of the winding tape will not interfere with the extraction of the finger 13 of the extender 12 of the rod 1. When the rod 1 is moved,

as the tape is wound off of the dismountable element (hairpin) along the longitudinal axis, the finger 6 of the hinge 5 will move in the longitudinal grooves 3 and the ball head 4 in the cylindrical bore 2 of the rod 1. After winding the entire separable tape of the hairpin 25, the device together with the wound tape Displays the details of the 26,. . Compared with the basic device, the invention will ensure reliable removal of residues of a threaded, non-unscrewed cone or a broken stuck stud without damaging the thread of the female part.

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Claims (2)

(54 (. DEVICE FOR REMOVING THE COMPONENT ELEMENTS), comprising a rod with a blind axial hole and a drive, characterized in that, in order to increase the reliability of dismantling the connection elements, it is equipped with an adjustable clamp fixed to the rod and a spring-loaded extension located in the blind an axial hole of the rod, the extension being installed with the possibility of translational movement relative to the rod along the grooves and protrusions, additionally made on the extension cord and the rod and having the possibility of corresponding tension between themselves, in addition, the rod is pivotally connected to the drive. 2 ’ The invention relates to metalworking, in particular to the dismantling of “stuck” threaded joints, as well as the dismantling of pipes flared * in tube sheets and collectors of heat exchangers ·, and can be used in the repair of equipment in shipbuilding, ship repair , energy, chemical and other industries. A device is known for the “dismantling of the coupling elements, comprising a rod with a blind axial bore and a drive Щ. . The disadvantage of this device is that it has not ensured the removal of 15 Vaeth neotvinchiT ^ yuschihsya or ragged thread _of all and does not provide preservation of the thread of the female part. ^one The purpose of the invention is to improve the reliability of the demon, even the elements of the joints. This goal is achieved by the fact that the device for dismantling the connection elements 25, comprising a rod with a blind hole and a drive, is equipped with an adjustable clamp fixed to the rod and a spring-loaded extension, located in the blind axial hole 30 of the rod, the extension being installed with the possibility of translational movement relative to the rod along the grooves and protrusions, additionally made on the extension cord and the rod and having the possibility of corresponding pairing with each other, in addition, the rod is connected to the drive the house is articulated. In FIG. 1 shows a device for dismantling connection elements, General view; in FIG. 2 - mutual arrangement of the protrusions of the extension cord with the grooves of the rod, section AA in FIG. 1, The device consists of a rod 1, on one side of which is made, a cylindrical hole 2 and longitudinal grooves 3. A ball head is installed in the cylindrical opening 2 4 hinges 5, interacting with longitudinal __ grooves 3 through the pin 6. Other · * ^{0 0} ball head 7 of the hinge 5 connected through the pin 8 and grooves 9 from the end * of the holder 10 installed in the drive (not shown) The hinge 5 serves to transmit torque from the drive 55 to the rod 1. On the other hand, with an axial bore hole 11 of the rod 1 is placed with the possibility of longitudinal movement of the extension cord 12, consisting of a finger 13, rigidly connected with a cylindrical sleeve 14, on which there are longitudinal protrusions ·., 15, interacting with the side surfaces 16 with the grooves 17 cut into lateral surface of the rod 1. 45 The finger 13 is spring-loaded with a spring 18 and connected to the longitudinal groove 19 of the rod 1 by a screw 20. The groove 19 and the screw 20 serve to prevent the finger 13 of the extension 12 from falling out of the blind axial hole 11 of the rod 1. On the side surface of the rod 1, a hole 21 is made on the hinge side 5, in which the clamp 22 is installed, made in the form of, for example, an L-shaped bolt. The clamp 22 serves to secure the beginning of the turn 23. of the helical groove 24 of the remainder of the threaded end of the stud 25. In the female part 26, an annular groove 27 is bored, which serves to exit the cutting tool when cutting the helical groove 24. A helical groove 24 of a triangular profile is cut on the inner surface of the pre-drilled hole 28 so that there is a jumper 29 between the outer diameter of the groove 24 and the inner diameter of the existing thread of the remaining pin 25. The pitch of the groove 24 is greater than the step of the existing thread of the pin 25 ,. The device operates as follows. ⁰ To remove the remnants of the stud 25, for example, by the method of dismantling the elements of the joints, the rod 1 is inserted into the pre-drilled hole 28 of the threaded end of the stud 35 25, while the extension 12 abuts against the bottom of the female part 26,. Pressing the rod 1 along the longitudinal axis, compress the spring. 18 under. the action of the finger 13, the beginning of the turn 23 is fixed with a clamp 22 on the rod 1. Then, the holder 10 is connected to the drive (not shown), the drive is turned on and torque is transmitted to the rod 1 through the hinge 5. Rod 1, rolling on the inner surface of the threaded hole 28 of the threaded end of the pin 25, wraps the turns of the screw groove 24 on itself, while the coil is torn off from the female part 26 along the top of the screw groove 24, as if weakened from £ 1 with a stress concentrator at the top of the groove 24. Since the apparent diameter of the rod 1 is smaller than the internal diameter of the drilled hole 28 of the threaded end of the pin 25, the length of the wound spiral will be longer than the length of the threaded end of the pin 25. Therefore, when winding the turns 23 the rod .1, under the action of the spring 18 and the winding turns 23, as it is winding, will move along the longitudinal axis towards the drive, and the extension 12, rolling together with the rod 1 along the reaming hole 28, will be in the initial position, t .e. lean on the bottom of the female part 26. In this case, the longitudinal protrusions 15 of the extension 12, interacting with the side surfaces 16, come out of the grooves 17 of the rod 1. The increasing length of the cylindrical surface of the rod 1 due to the extension cord 12 will ensure the winding of the entire tape of the dismantled threaded end of the stud.25, Moreover, since 10 ^ the outer diameter of the rod.1 is larger than the outer diameter of the longitudinal protrusions. 15 of the extension cord 12, the turns 23 of the winding tape will not prevent the finger 13 of the extension cord 12 from leaving the rod 1. When moving the rod 1, 7898, as the detachable tape of the dismountable element (hairpin) is wound along the longitudinal axis, the pin 5 of the hinge 5 will move in the longitudinal grooves 3, and the ball head 4 will move in the cylindrical hole 2 of the rod 1. After winding the entire detachable tape of the pin 25, the device together with the wound the tape is removed from the covering part 26.. ^one Compared with the basic device, the invention will allow for reliable removal of the remains of the threaded cone of a non-unscrewing or dangling sticky stud without damaging the thread of the enclosing part.