A special tool for temperature measuring pipe seat

Abstract

The present invention relates to the field of nuclear power pipeline technology, and specifically to a special tool for temperature measuring tube sockets. The present invention provides a special tool for temperature measuring tube sockets, which is used to assist in tube socket reaming, and includes a first plate body and a second plate body, a tube socket sleeve, a positioning member, and at least one rod body; the first end of the first plate body and the first end of the second plate body are hinged, one end of the rod body is hinged to the second end of the first plate body, and the other end of the rod body supports the second end of the second plate body; the first plate body is provided with a hole body for the tube socket to pass through, the tube socket sleeve is installed at the hole body, and the tube socket sleeve is used to fix the tube socket. It can quickly locate the center of the tube socket with high positioning accuracy, avoid the magnetic electric drill being fixed not perpendicular to the tube socket, resulting in unqualified aperture and concentricity accuracy after reaming, and make the entire reaming work efficient and accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of nuclear power pipelines, and in particular to a special tool for a temperature measuring pipe seat. Background Art

[0002] G1" temperature measuring pipe sockets are typically used as temperature measurement components on equipment and pipelines in supporting facilities systems on the nuclear island to check the temperature of liquid reactions within the equipment and pipelines, thereby controlling the reaction rate. During the prefabrication and installation of G1" temperature measuring pipe sockets on nuclear island pipelines, ensuring the verticality and concentricity of the pipe socket center is crucial to the precise installation of subsequent temperature measuring components. Therefore, the G1" temperature measuring pipe sockets are expanded after welding to ensure the final accuracy requirements.

[0003] like Figure 1 As shown, the installation direction of the pipe seat is at an angle of 65° to the pipe surface. After welding, the pipe seat is expanded to a diameter of 29 mm. The aperture accuracy requirement is -0.1 to +0.2 mm, and the concentricity accuracy requirement is ≤0.3 mm.

[0004] In the past, a universal radial drill was used for hole expansion. Specifically, a ring crane was used to tilt one end of the pipe and the inclination angle of the pipe was adjusted with an angle ruler. After the angle was adjusted, a special tool was used to fix the pipe. Then, the fixture on the universal radial drill was used to further clamp the pipe before the hole was expanded.

[0005] Because the steps for adjusting the inclination angle of the pipe are complicated and difficult to quickly and accurately locate the center of the pipe seat, the efficiency of the entire reaming work is low and the reaming accuracy is poor. Summary of the Invention

[0006] (1) The problem to be solved by the present invention is that when a universal radial drill is used for hole expansion construction, the steps for adjusting the inclination angle of the pipeline are cumbersome, and it is difficult to quickly and accurately locate the center of the pipe seat, resulting in low efficiency of the entire hole expansion work and poor hole expansion accuracy.

[0007] (2) Technical solution

[0008] A special tool for a temperature measuring pipe socket, used for assisting in expanding the hole of the pipe socket, comprising a first plate body and a second plate body, a pipe socket sleeve, a positioning piece and at least one rod body;

[0009] The first end of the first plate body and the first end of the second plate body are hingedly connected, one end of the rod body is hingedly connected to the second end of the first plate body, and the other end of the rod body supports the second end of the second plate body;

[0010] The first plate is provided with a hole for the tube seat to pass through, the tube seat sleeve is installed in the hole, and the tube seat sleeve is used to fix the tube seat;

[0011] The second plate is provided with a through hole for the positioning member to pass through;

[0012] When the positioning member passes through the through hole and enters the tube seat, the positioning member, the tube seat sleeve and the tube seat are coaxially arranged.

[0013] According to one embodiment of the present invention, a positioning pin hole is provided at the top center of the positioning member.

[0014] According to one embodiment of the present invention, the positioning member includes a top plate, a first cylinder and a second cylinder connected in sequence, the first cylinder and the second cylinder are coaxially arranged, and the diameter of the first cylinder is larger than the diameter of the second cylinder, and the positioning pin hole is opened on the top plate.

[0015] According to an embodiment of the present invention, the positioning member is threadedly connected to the tube seat.

[0016] According to one embodiment of the present invention, the tube seat sleeve is a tube body, the inner diameter of the first end of the tube seat sleeve is larger than the inner diameter of the second end, and the first end of the tube seat sleeve faces the second plate body.

[0017] According to one embodiment of the present invention, the pipe seat sleeve includes a first sleeve body and a second sleeve body, the first sleeve body is fixed on the first plate body, and the second sleeve body can rotate relative to the first sleeve body.

[0018] According to one embodiment of the present invention, the first side of the first sleeve and the first side of the second sleeve are rotatably connected, and the second side of the first sleeve and the second side of the second sleeve are detachably connected.

[0019] According to an embodiment of the present invention, the rod body is a telescopic rod, and both ends of the rod body are connected to the first plate body and the second plate body through a hinge seat and a connecting pin.

[0020] According to one embodiment of the present invention, a positioning frame and a limit block are installed on the top surface of the second plate, and two limit blocks are provided; the positioning frame is located between the limit block and the through hole, and the magnetic electric drill is limited between the two limit blocks.

[0021] According to an embodiment of the present invention, the positioning frame is a door-shaped block, and a bolt hole is provided on the top of the positioning frame.

[0022] Beneficial effects of the present invention:

[0023] The present invention provides a special tool for a temperature measuring tube socket, which is used to assist in expanding the tube socket, and includes a first plate body and a second plate body, a tube socket sleeve, a positioning piece and at least one rod body; the first end of the first plate body and the first end of the second plate body are hinged, one end of the rod body is hinged to the second end of the first plate body, and the other end of the rod body supports the second end of the second plate body; a hole body for the tube socket to pass through is opened on the first plate body, and the tube socket sleeve is installed at the hole body, and the tube socket sleeve is used to fix the tube socket; a through hole for the positioning piece to pass through is opened on the second plate body; when the positioning piece passes through the through hole and enters the tube socket, the positioning piece, the tube socket sleeve and the tube socket are coaxially arranged.

[0024] Install the positioning piece into the pipe socket, ensuring that the positioning piece and the pipe socket are in a coaxial state, then loosen the rod body so that the second plate body can be expanded around the connecting axis, then align the hole body on the first plate body with the pipe socket, and move the first plate body from top to bottom so that the pipe socket passes through the hole body on the first plate body and is placed in the pipe socket sleeve, then lock the pipe socket, and then rotate the second plate body to close the second plate body so that the upper end surface of the pipe socket sleeve contacts the lower surface of the second plate body, and then lock the rod body, and then place the magnetic electric drill on the second plate body, adjust the position of the magnetic electric drill so that the positioning piece corresponds to the magnetic electric drill bit, raise the drill bit after confirming that it is correct, remove the positioning piece from the through hole above the second plate body, and then use the drilling tool to expand the hole of the pipe socket.

[0025] With the help of the positioning piece and the pipe seat, the center of the pipe seat can be quickly located with high positioning accuracy, avoiding the problem that the magnetic electric drill is not fixed perpendicular to the pipe seat, resulting in unqualified aperture and concentricity accuracy after reaming, making the entire reaming work efficient and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A front view of an embodiment of the present invention;

[0028] Figure 2 An axonometric view of an embodiment of the present invention;

[0029] Figure 3 A three-dimensional diagram of an uncoiler provided in an embodiment of the present invention.

[0030] Icon: 1- positioning pin hole; 2- positioning piece; 3- positioning frame; 4- second plate; 5- hinge seat; 6- connecting pin; 7- rod body; 8- first plate; 9- pipe seat sleeve; 10- screw; 11- nut; 12- connecting shaft; 13- pipe seat. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] One embodiment of the present invention provides a dedicated tool for a temperature measuring pipe socket, which is used to assist in expanding the hole of the pipe socket 13, and includes a first plate 8 and a second plate 4, a pipe socket sleeve 9, a positioning member 2 and at least one rod 7;

[0033] from Figure 2 From the perspective of the embodiment, the first end of the first plate 8 is the left end, and the second end is the right end, the first end of the second plate 4 is the left end, and the second end is the right end, and the first end of the first plate 8 and the first end of the second plate 4 are hinged;

[0034] Preferably, a connecting shaft 12 is installed on the left end of the first plate body 8, and a plurality of rotating sleeves rotatably connected to the connecting shaft 12 are installed on the left end of the second plate body 4. The rotating sleeves are coaxially arranged with the connecting shaft 12, and the rotating sleeves can rotate relative to the connecting shaft 12.

[0035] When in use, the pipe is placed on the bottom surface, and then the magnetic electric drill is installed on the tool to expand the hole. There is no need to hoist and fix the pipe, and the center of the pipe seat 13 can be quickly located, which is easy to use.

[0036] like Figure 2 As shown, the rod body 7 has a top end and a bottom end, the bottom end of the rod body 7 is hinged to the second end of the first plate body 8, and the top end of the rod body 7 supports the second end of the second plate body 4.

[0037] Preferably, bending pieces are installed at the top and bottom ends of the rod body 7, and hinge seats 5 are installed on the lower surface of the second end of the first plate body 8 and the upper surface of the second end of the second plate body 4, and the hinge seat 5 is hinged to the bending piece through a connecting pin 6.

[0038] In this embodiment, a hole is formed on the first plate 8 for the pipe seat 13 to pass through. A portion of the pipe seat sleeve 9 is welded to the upper surface of the first plate 8 and installed at the hole. The pipe seat sleeve 9 is used to retain the pipe seat 13.

[0039] The second plate 4 is provided with a through hole for the positioning member 2 to pass through. When the positioning member 2 passes through the through hole and enters the tube seat 13, the axis of the positioning member 2, the axis of the tube seat sleeve 9 and the axis of the tube seat 13 are the same axis.

[0040] The G1″ type pipe seat is clamped and positioned by the pipe seat sleeve 9 and the positioning piece 2, so that the pipe seat sleeve 9, the positioning piece 2 and the pipe seat 13 are in a coaxial state to ensure the hole opening accuracy.

[0041] Preferably, Figure 3 As shown, the positioning member 2 includes a top plate, a first cylinder and a second cylinder connected in sequence, the first cylinder and the second cylinder are both cylinders, and the first cylinder and the second cylinder are coaxially arranged, wherein the diameter of the first cylinder is larger than the diameter of the second cylinder, so that the diameter of the lower end surface of the first cylinder is slightly larger than the diameter of the second cylinder, so that the lower end surface of the first cylinder rests on the step surface inside the tube seat 13.

[0042] In addition, an external thread is provided on the outer surface of the second column, and a thread groove compatible with the external thread is provided on the inner side surface of the tube seat 13, so that the positioning member 2 can be screwed into the tube seat 13, ensuring that the positioning member 2 and the tube seat 13 are in a concentric state, ensuring the accuracy of positioning.

[0043] In addition, if Figure 3 As shown, the outer diameter of the tube seat 13 is larger than the diameter of the through hole on the second plate body 4, so that the through hole limits the freedom of the temperature measuring tube seat to move up and down, so that the temperature measuring tube seat is in a completely positioned state.

[0044] In this way, the temperature measuring tube seat is a cylindrical part and the tube seat sleeve 9 with the same shape as the tube seat 13 is clamped and positioned, and then the positioning member 2 is tightly matched with the tube seat 13 by using a threaded connection method, so that the positioning member 2, the tube seat 13 and the tube seat sleeve 9 are concentric to ensure the accuracy of the hole.

[0045] It should be noted that a locating pin hole 1 is provided at the top center of the top plate, coaxially arranged with the entire locating member 2. A locating pin can be installed in locating pin hole 1 to assist in positioning. The locating pin is used to adjust the magnetic drill bit's drilling position. Using locating pin hole 1 as a reference, the position of the magnetic drill bit is adjusted until it aligns with locating pin hole 1, ensuring accurate positioning.

[0046] Preferably, the top plate is a disc, the diameter of the disc is larger than the diameter of the first cylinder, and the diameter of the through hole on the second plate body 4 is larger than the diameter of the disc, so that the positioning member 2 can pass through the through hole.

[0047] In this embodiment, if Figure 3As shown, the pipe seat sleeve 9 is in the shape of a tube, the top surface of the pipe seat sleeve 9 is flat, and the lower end of the pipe seat sleeve 9 forms an oblique opening, so that the pipe seat sleeve 9 is installed obliquely on the first plate body 8 to adapt to the inclined pipe seat 13.

[0048] Specifically, the inner diameter of the tube seat sleeve 9 is narrowed from the top to the bottom to adapt to the shape of the tube seat 13. Further, the tube seat sleeve 9 is divided into a first sleeve and a second sleeve. The first sleeve is close to the hole on the first plate 8, and the second sleeve is away from the hole on the first plate 8. The first sleeve is smaller and the second sleeve is larger, that is, the tube seat sleeve 9 is not separated from the middle position. Specifically, refer to Figure 3 , is to cut the pipe seat sleeve 9 on the right side of the axis position.

[0049] from Figure 2 From the perspective of the embodiment, the first sleeve is located on the right side of the pipe seat sleeve 9, and the second sleeve is located on the left side of the pipe seat sleeve 9, wherein the bottom inclined surface of the first sleeve is welded to the first plate 8, and the second sleeve can rotate relative to the first sleeve, so that the pipe seat sleeve 9 can be opened at any time to facilitate clamping and positioning of the pipe seat 13.

[0050] Preferably, the first sleeve and the second sleeve are hingedly connected at a first connection point via a hinge, and the first sleeve and the second sleeve are detachably connected at a second connection point.

[0051] Specifically, a first fixing plate is installed on one side of the first sleeve, and a second fixing plate is installed on one side of the second sleeve. Both fixing plates are provided with through holes. The first fixing plate and the second fixing plate are connected by screws 10 and nuts 11 to fix the first set and the second set in turn.

[0052] After the nut 11 is unscrewed and the screw 10 is pulled out, the first set and the second set can be separated.

[0053] Optionally, other detachable connection methods, such as a snap connection, may be used between the second connection point of the first sleeve and the second sleeve.

[0054] Optionally, the pipe seat sleeve 9 is divided into a first sleeve body and a second sleeve body from the middle, the first sleeve body is close to the hole body on the first plate body 8, and the second sleeve body is far away from the hole body on the first plate body 8, that is, Figure 3 The axis position in the middle is separated, the left side is the second set of bodies, and the right side is the first set of bodies.

[0055] Preferably, Figure 2 As shown, the hole on the first plate 8 is in the shape of an elongated hole, which is convenient for inserting the tube seat 13 .

[0056] In this embodiment, if Figure 2As shown, two stoppers are symmetrically mounted on the upper surface of the second plate 4, to the right of the through-hole. Both are elongated, with their lengths parallel to the length of the second plate 4. The axis of the through-hole lies within the plane of the center of the line connecting the two stoppers, meaning the two stoppers are symmetrical about the axis of the through-hole. The magnetic drill is restrained between the two stoppers, limiting its forward and backward movement.

[0057] Furthermore, a positioning frame 3 is fixedly mounted on the upper surface of the second plate 4. Positioning frame 3 is located between the stop block and the through hole. Positioning frame 3 is door-shaped and symmetrically arranged about the axis of the through hole, i.e., the midpoint of the top of the door frame is coplanar with the axis of the through hole. While the door frame blocks the base of the magnetic drill, the base of the magnetic drill also fits neatly into the door frame. Together with the two stop blocks, the magnetic drill can be stably positioned to prevent it from deviating.

[0058] The limiting block and the positioning frame 3 can be used to quickly and accurately install the magnetic electric drill that matches them, thus avoiding the problems of inaccurate and difficult positioning and greatly improving work efficiency.

[0059] In addition, when the magnetic electric drill is installed in the door frame and no displacement occurs, the axis of the drill bit and the axis of the positioning member 2 are the same axis.

[0060] It should be noted that, according to the different sizes of magnetic drills, the size of the positioning frame 3 and the distance between the limit blocks need to be readjusted.

[0061] Optionally, two bolt holes are symmetrically provided on the top of the positioning frame 3, and two bolt holes are also provided on the upper surface of one side of the magnetic electric drill base. In this way, when the base of the magnetic electric drill is in place, the bolt holes on the positioning frame 3 and the bolt holes on the magnetic electric drill base are corresponding. At this time, two bolts are screwed into the bolt holes on the positioning frame 3, and then the bolts are gradually screwed into the base of the magnetic electric drill to complete the fixing of the magnetic electric drill and improve the stability of the magnetic electric drill.

[0062] After the pipe seat 13 is welded to the pipe, the hole expansion operation is started. Specifically, the positioning member 2 is first screwed into the pipe seat 13 to ensure that the positioning member 2 and the pipe seat 13 are in a coaxial state; then the connecting pin 6 is removed so that the second plate 4 can be unfolded around the connecting axis 12, and then the pipe seat sleeve 9 is opened. Then, the hole on the first plate 8 is aligned with the pipe seat 13, and the first plate 8 is moved from top to bottom so that the pipe seat 13 passes through the hole on the first plate 8 and is placed in the pipe seat sleeve 9, and then the pipe seat sleeve 9 is closed to lock the pipe seat 13, and then the second plate 4 is rotated clockwise to close the second plate 4 so that the upper end surface of the pipe seat sleeve 9 contacts the lower surface of the second plate 4, and then the connecting pin 6 is inserted to lock the rod 7;

[0063] Then place the magnetic electric drill on the second plate 4 so that the rectangular block base of the magnetic electric drill is inserted into the positioning frame 3 and the base is also limited between the two limit blocks. Adjust the position of the magnetic electric drill so that the bolt holes on the positioning frame 3 and the bolt holes on the magnetic electric drill base correspond to each other. Then use bolts to fix the base and the positioning frame 3. At this time, the positioning pin hole 1 corresponds to the drill bit of the magnetic electric drill. After confirmation, raise the drill bit and remove the positioning piece 2 and the positioning pin from the through hole above the second plate 4 by rotating. Then you can use the drilling tool to expand the hole on the pipe seat 13.

[0064] When using this tool for reaming, the pipe is placed on the ground. There is no need to hoist the pipe or arrange special tooling to fix the pipe. The center of the pipe seat 13 can be quickly located with high positioning accuracy, avoiding the problem that the magnetic electric drill is not fixed perpendicular to the pipe seat 13, resulting in unqualified aperture and concentricity accuracy after reaming, so that the entire reaming work is efficient and has high reaming accuracy.

[0065] In the description of the present invention, it should be noted that the terms "upper" and "lower" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0066] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or they can refer to connections between the internal parts of two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special tool for a temperature measuring tube seat, used to assist in expanding the hole of the tube seat (13), characterized in that: It comprises a first plate body (8), a second plate body (4), a pipe seat sleeve (9), a positioning member (2) and at least one rod body (7); The first end of the first plate (8) and the first end of the second plate (4) are hingedly connected, one end of the rod (7) is hingedly connected to the second end of the first plate (8), and the other end of the rod (7) supports the second end of the second plate (4); The first plate (8) is provided with a hole for the tube seat (13) to pass through, the tube seat sleeve (9) is installed at the hole, and the tube seat sleeve (9) is used to fix the tube seat (13); The second plate (4) is provided with a through hole for the positioning member (2) to pass through; when the positioning member (2) passes through the through hole and enters the tube seat (13), the positioning member (2), the tube seat sleeve (9) and the tube seat (13) are coaxially arranged; The rod body (7) is a telescopic rod, and both ends of the rod body (7) are connected to the first plate body (8) and the second plate body (4) through a hinge seat (5) and a connecting pin (6); The tube seat sleeve (9) is a tube body, the inner diameter of the first end of the tube seat sleeve (9) is larger than the inner diameter of the second end, and the first end of the tube seat sleeve (9) faces the second plate body (4); The pipe seat sleeve (9) comprises a first sleeve body and a second sleeve body, the first sleeve body is fixed on the first plate body (8), and the second sleeve body can rotate relative to the first sleeve body; The first side of the first sleeve is rotatably connected to the first side of the second sleeve, and the second side of the first sleeve is detachably connected to the second side of the second sleeve.

2. A special tool for temperature measuring tube seat according to claim 1, characterized in that: A positioning pin hole (1) is provided at the top center of the positioning member (2).

3. A special tool for temperature measuring tube seat according to claim 2, characterized in that: The positioning member (2) comprises a top sheet, a first column and a second column connected in sequence, the first column and the second column are coaxially arranged, and the diameter of the first column is larger than the diameter of the second column, and the positioning pin hole (1) is opened on the top sheet.

4. A special tool for temperature measuring tube seat according to claim 1, characterized in that: The positioning member (2) is threadedly connected to the pipe seat (13).

5. The special tooling for temperature measuring tube seat according to claim 1, characterized in that: A positioning frame (3) and a limiting block are installed on the top surface of the second plate body (4), and two limiting blocks are provided; the positioning frame (3) is located between the limiting block and the through hole, and the magnetic electric drill is limited between the two limiting blocks.

6. A special tool for temperature measuring tube seat according to claim 5, characterized in that: The positioning frame (3) is a door-shaped block, and a bolt hole is provided on the top of the positioning frame (3).

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