Correcting tool

Abstract

The utility model relates to a circular ring correcting device, in particular to a correcting tool. A correcting tool comprises a center frame provided with a plurality of supporting rods distributed in the circular radial direction; one end of the outer abutting block abuts against the outer side face of the corrected annular piece; one end of the inner abutting block abuts against the inner side face of the corrected annular piece; the main length telescopic mechanisms are connected with the corresponding supporting rods and the corresponding inner abutting blocks and used for adjusting the distance between the inner abutting blocks and the supporting rods; the auxiliary length telescopic mechanisms are connected with the corresponding supporting rods and the corresponding outer abutting blocks and used for adjusting the distance between the outer abutting blocks and the supporting rods. Through cooperation of the supporting rods, the inner abutting blocks and the main length telescopic mechanisms or cooperation of the supporting rods, the outer abutting blocks and the auxiliary length telescopic mechanisms, the annular part can be corrected, meanwhile, the annular part can be shaped, and later machining is facilitated.

Description

Technical Field

[0001] The present application relates to a ring correction device, and in particular to a correction tool for a deformed mouth ring. Background Art

[0002] A mouth ring is required in the circulating water pump. This mouth ring is also called a water pump sealing ring or a wear-resistant ring. It is used as a sealing ring between the pump impeller and the pump casing. It is generally installed between the water pump impeller suction port and the water pump casing to form a narrow channel between the impeller and the pump casing, increasing the medium flow resistance, and is used to prevent the high-pressure water at the pump outlet from leaking back to the low-pressure side of the pump body inlet. At the same time, it can also prevent possible friction between the impeller and the pump body, protecting the pump body and impeller from damage. The thickness of the mouth ring is relatively small and it is a thin-walled annular metal ring with a diameter of about 2800mm.

[0003] During the processing, manufacturing and storage of large-diameter thin-walled metal rings, they are prone to deformation due to their own gravity; they are deformed into ellipses or quasi-ellipses; when the inner and outer surfaces of such metal rings need to be turned, it is difficult to turn the inner and outer surfaces evenly, which easily leads to uneven thickness and makes it impossible to use them normally. Utility Model Content

[0004] The purpose of the embodiments of the present application is to address the deficiencies of the prior art and provide a correction tool for a deformed mouth ring, which can correct and fix the deformed mouth ring to facilitate the processing of the deformed ring.

[0005] A correction tool, comprising:

[0006] A center frame is provided with a plurality of support rods distributed radially in a circular shape;

[0007] An inner abutment block, one end of which abuts against the inner side surface of the annular member to be corrected;

[0008] The main length telescopic mechanism is connected between the support rod and the inner abutment block and is used for adjusting the distance between the inner abutment block and the support rod.

[0009] Preferably, the main length telescopic mechanism includes a main connecting member connected to the support rod and a screw rod, one end of the screw rod abuts against the inner abutment block, and the other end of the screw rod extends into the main connecting member. The main connecting member is provided with a moving space for the movement of the screw rod. The screw rod is threadedly connected with an adjusting nut, and the adjusting nut abuts against the outer surface of the main connecting member.

[0010] Furthermore, the moving space is located inside the main connecting member, and the end surface of the main connecting member is provided with a through hole connected to the moving space. The screw rod passes through the through hole and extends into the moving space and is connected to a limiting block, and the limiting block is used to limit the screw rod from detaching from the moving space.

[0011] Preferably, the screw rod is sleeved with a spring, the spring is located in the moving space, and two ends of the spring are respectively against the limit block and the main connecting member.

[0012] As a variation of the main length telescopic mechanism, the main length telescopic mechanism includes a first connecting rod connected to the support rod and a second connecting rod connected to the inner abutment block, an adjustment tube is connected between the first connecting rod and the second connecting rod, the first connecting rod and the second connecting rod are both provided with external threads, both ends of the adjustment tube are provided with internal threads, and the internal threads at both ends are rotated in opposite directions, and the two ends of the adjustment tube are respectively threadedly connected to the first connecting rod and the second connecting rod. The distance between the inner abutment block and the support rod is adjusted by rotating the adjustment tube.

[0013] Furthermore, one end of the main connecting member is provided with a connecting structure connected to the support rod.

[0014] Preferably, the connection structure comprises a socket provided on the main connection member, and the end of the support rod is inserted into the socket.

[0015] Preferably, the main connecting member is connected with a plug, and the end of the support rod is provided with a plug hole matching with the plug; the plug is inserted into the plug hole.

[0016] Further, the center frame includes a center circular block, and the support rod is connected to the side of the center circular block; or / and, the center frame includes an annular sheet, and the end surface of the annular sheet is connected to the side of the support block.

[0017] A correction tool, comprising:

[0018] A center frame is provided with a plurality of support rods distributed radially in a circular shape;

[0019] An outer abutment block, one end of which abuts against the outer side surface of the annular member to be corrected;

[0020] The secondary length telescopic mechanism is connected between the support rod and the outer abutment block and is used for adjusting the distance between the outer abutment block and the support rod.

[0021] Furthermore, the secondary length telescopic mechanism includes: a secondary connecting member connected to the support rod; the outer end of the secondary connecting member is connected to a support block, the support block is provided with a threaded through hole and is connected to an adjusting bolt, and one end of the adjusting bolt abuts against the outer abutment block.

[0022] Preferably, a plurality of reinforcing ribs are provided between the supporting block and the secondary connecting member.

[0023] A correction tool, comprising:

[0024] A center frame is provided with a plurality of support rods distributed radially in a circular shape;

[0025] An outer abutment block, one end of which abuts against the outer side surface of the annular member to be corrected;

[0026] An inner abutment block, one end of which abuts against the inner side surface of the annular member to be corrected;

[0027] A main length telescopic mechanism, connected between the corresponding support rod and the corresponding inner abutment block, for adjusting the distance between the inner abutment block and the support rod;

[0028] The secondary length telescopic mechanism is connected between the corresponding support rod and the corresponding outer abutment block, and is used for adjusting the distance between the outer abutment block and the support rod.

[0029] Beneficial effects of the present application: The present application can correct the annular component through the cooperation of the support rod, the inner abutment block and the main length telescopic mechanism or the support rod, the outer abutment block and the secondary length telescopic mechanism, and can also shape the annular component to facilitate later processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 This is a schematic diagram of Example 1.

[0032] Figure 2 It is a partial cross-sectional schematic diagram of the cooperation between the support rod, the inner abutment block and the main length telescopic mechanism.

[0033] Figure 3 This is a schematic diagram of Embodiment 2.

[0034] Figure 4 It is a partial cross-sectional schematic diagram of the cooperation among the support rod, the outer abutment block and the secondary length telescopic mechanism.

[0035] Figure 5 This is a schematic diagram of Embodiment 3.

[0036] Reference numerals include:

[0037] 1——ring; 2——center frame; 21——center circular block; 22——support rod; 3——secondary length telescopic mechanism; 31——secondary connecting member; 32——latch pin; 33——adjusting bolt; 34——reinforcement rib; 35——support block; 36——insert hole; 4——main length telescopic mechanism; 41——main connecting member; 42——spring; 43——screw rod; 44——adjusting nut; 45——latch pin; 46——insert hole; 47——moving space; 48——limiting block; 5——inner abutment block; 6——outer abutment block. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0043] Example 1: See Figure 1 , Figure 2 A correction tool, comprising: a center frame 2, the center frame 2 is provided with a plurality of support rods 22 distributed in a circular radial manner; the support rods 22 are preferably evenly distributed, and the number of the support rods 22 is preferably 4 or more, such as 5, 6, 7, 8, 9, 10, etc.; in this embodiment, 8 support rods 22 are used, and the support rods 22 are distributed in a cross shape. It also includes an inner abutment block 5 and a main length telescopic mechanism 4, one end of the inner abutment block 5 abuts against the inner side surface of the annular member 1 to be corrected; the main length telescopic mechanism 4 is connected between the support rod 22 and the inner abutment block 5, and is used to adjust the distance between the inner abutment block 5 and the support rod 22.

[0044] When using the correction tool in this embodiment 1, the center frame 2 is first placed at the center position of the ring part 1, such as the center of other deformed ring parts 1 such as the mouth ring, and a space is left between the end of the support rod 22 and the inner side surface of the ring part 1. The end of the support rod 22 is connected to the inner abutment block 5 through the main length telescopic mechanism 4. The main length telescopic mechanism 4 is adjusted so that the inner abutment block 5 gradually moves toward the inner side surface of the ring part 1. During the movement, the telescopic lengths of all the main length telescopic mechanisms 4 are kept consistent until all the inner abutment blocks 5 are abutted against the inner side surface of the ring part 1. During the adjustment process of the main length telescopic mechanism 4, the inner abutment block 5 that first abuts against the inner side surface of the ring member 1 will push the ring member 1 to move or deform. If the inner abutment block 5 on the other side opposite to the inner abutment block 5 does not contact the ring member 1, the ring member 1 will move, so that the center of the circle of the ring member 1 gradually coincides with the center of the center frame 2; if it contacts the ring member 1, the inner abutment blocks 5 on both sides simultaneously support the ring member 1 outward, driving the ring member 1 to deform; when all the inner abutment blocks 5 abut against the inner side surface, the ring member 1 has basically been corrected to form a circular ring or a quasi-circular ring. Secondly, it should be noted that the lengths of the support rods 22 are all equal; if there is an inequality, when adjusting the main length telescopic mechanism 4, it is necessary to make sure that the distance from the abutment surface of the inner abutment block 5 to the center of the center frame 2 is equal; length compensation is performed through the main length telescopic mechanism 4.

[0045] After the adjustment is completed, the ring part 1 is inspected: the ring part 1 is fixed on a rotating table, and several dial indicators are fixed on the outside of the ring part 1. The probes of the dial indicators are against the outer side of the ring part 1. The rotating table drives the ring part 1 to rotate, and the vibration of the dial indicators is observed.

[0046] Among them, the main length telescopic mechanism 4 includes: a main connecting member 41 connected to the support rod 22 and a screw 43, one end of the screw 43 abuts against the inner abutment block 5, and the other end of the screw 43 extends into the main connecting member 41. The main connecting member 41 is provided with a moving space 47 for the screw 43 to move. The screw 43 is threadedly connected with an adjusting nut 44, and the adjusting nut 44 abuts against the outer surface of the main connecting member 41.

[0047] When adjusting the length, this embodiment 1 adopts a structure in which a screw rod 43 and an adjusting nut 44 cooperate with each other. The screw rod 43 can extend into the moving space 47 of the main connecting member 41 and can move relative to the main connecting member 41. By rotating the adjusting nut 44, the distance between the inner abutment block 5 and the main connecting member 41 can be adjusted.

[0048] The moving space 47 is located inside the main connecting member 41, and the end surface of the main connecting member 41 is provided with a through hole connected to the moving space 47. The screw rod 43 passes through the through hole and extends into the moving space 47 and is connected to the limiting block 48. The limiting block 48 is used to limit the screw rod 43 from being separated from the moving space 47. The limiting block 48 can be a limiting nut, or it can be integrally formed with the screw rod 43 as a bolt, in which case the limiting block 48 is a bolt head.

[0049] In order to prevent the screw rod 43 from being separated from the moving space 47 and leaving the main connecting member 41, the technical solution is provided with a limit block 48, which prevents the screw rod 43 from being separated from the main connecting member 41. Secondly, the screw rod 43 is sleeved with a spring 42, which is located in the moving space 47, and the two ends of the spring 42 are respectively against the limit block 48 and the main connecting member 41. By providing the spring 42, the limit block 48 is always subjected to the thrust of the spring 42; at the same time, the adjusting nut 44 is also always subjected to the force of the main connecting member 41, so that the limit block 48 and the adjusting nut 44 are not easy to loosen, especially the adjusting nut 44.

[0050] The main length telescopic mechanism 4 has a variety of structures, such as: the main length telescopic mechanism 4 includes a first connecting rod connected to the support rod 22 and a second connecting rod connected to the inner abutment block 5, an adjustment tube is connected between the first connecting rod and the second connecting rod, the first connecting rod and the second connecting rod are both provided with external threads, both ends of the adjustment tube are provided with internal threads, and the internal threads at both ends are rotated in opposite directions, and the two ends of the adjustment tube are respectively threadedly connected to the first connecting rod and the second connecting rod. The distance between the inner abutment block 5 and the support rod 22 is adjusted by rotating the adjustment tube.

[0051] During adjustment, in order to ensure a stable connection between the support rod 22 and the main connecting member 41, a connection structure connected to the support rod 22 is provided at one end of the main connecting member 41 in this embodiment 1. For example, the connection structure includes a plug hole 46 provided on the main connecting member 41, and the end of the support rod 22 is inserted into the plug hole 46. In order to make the connection relatively stable, the main connecting member 41 is connected with a plug pin 45, and the end of the support rod 22 is provided with a plug hole matched with the plug pin 45, and the plug pin 45 is inserted into the plug hole. Secondly, the support rod 22 can be a hollow tube structure to reduce costs.

[0052] To facilitate the circular radial arrangement of the support rod 22, the center frame 2 includes a center circular block 21, and the support rod 22 is connected to the side of the center circular block 21; or / and, the center frame 2 includes an annular sheet (not shown in the figure), and the end face of the annular sheet is connected to the side of the support block 35.

[0053] The support rods 22 are fixed by the central circular block 21 or the annular sheet, so that the support rods 22 are radially distributed in a circle.

[0054] Example 2: See Figure 3 , Figure 4A correction tool, comprising: a center frame 2, an outer abutment block 6 and a secondary length telescopic mechanism 3, wherein the center frame 2 is provided with a plurality of circular radially distributed support rods 22, one end of the outer abutment block 6 abuts against the outer side surface of the annular member 1 to be corrected, and the secondary length telescopic mechanism 3 is connected between the support rod 22 and the outer abutment block 6, and is used to adjust the distance between the outer abutment block 6 and the support rod 22. The number of the support rods 22 is set to be more than 4, such as 5, 6, 7, 8, 9, 10, etc.; in this embodiment, 8 are used, and the support rods 22 are distributed in a cross shape.

[0055] When using the tooling, the steps of this embodiment 2 are similar to those of the embodiment 1; the difference is that the plane where the support rod 22 is located is located above or below the ring member 1, so that when connected with the secondary length telescopic mechanism 3, the secondary length telescopic mechanism 3 crosses the ring member 1; of course, the secondary length telescopic mechanism 3 can also be set to a U-shaped shape, which is conducive to crossing the ring member 1, see Figure 4 ; The outer end of the secondary length telescopic mechanism 3 is connected to the outer abutment block 6; by adjusting the secondary length telescopic mechanism 3, the outer abutment block 6 is gradually approached to the outer side surface of the ring member 1 until it abuts against it; similarly, when adjusting, the adjusted length is kept consistent; or the distance from the abutment point between the outer abutment block 6 and the ring member 1 to the center of the center frame 2 is kept equal; during the adjustment process, some of the outer abutment blocks 6 first contact the ring member 1, and the shape of the ring member 1 is gradually adjusted until all the outer abutment blocks 6 abut against the ring member 1.

[0056] After the adjustment is completed, use a dial indicator to test; during the test, first remove the tooling, then install the tooling of Example 1, and fix the ring 1 on a rotating table, fix several dial indicators on the outside of the ring 1, and the probes of the dial indicators are against the outer side of the ring 1. The rotating table drives the ring 1 to rotate, and observe the vibration of the dial indicator.

[0057] Among them, the secondary length telescopic mechanism 3 includes: a secondary connecting member 31 connected to the support rod 22; the outer end of the secondary connecting member 31 is connected to a support block 35, the support block 35 is provided with a threaded through hole and is connected to an adjusting bolt 33, and one end of the adjusting bolt 33 abuts against the outer abutment block 6.

[0058] Of course, the length adjustment mechanism can also adopt other structures, such as the support block 35 is connected with a telescopic rod, and the telescopic rod abuts against the outer abutment block 6. The structure of the telescopic rod can have a variety of structures, which is a prior art and will not be repeated. The auxiliary connecting member 31 can be Z-shaped.

[0059] When in use, it is only necessary to rotate the adjusting bolt 33, and the adjusting bolt 33 rotates relative to the supporting block 35, and changes the distance between the outer abutting block 6 and the supporting block 35, that is, changes the distance between the outer abutting block 6 and the center frame 2. Secondly, in order to facilitate the rotation of the adjusting bolt 33 relative to the outer abutting block 6, the following methods can be adopted: 1. The outer abutting block 6 is provided with a circular hole that matches the adjusting bolt 33; 2. The outer abutting block 6 is connected to a bearing, and the end of the adjusting bolt 33 is inserted into the bearing.

[0060] In order to improve the connection strength between the support block 35 and the secondary connection member 31, a plurality of reinforcing ribs 34 are provided between the support block 35 and the secondary connection member 31. This can prevent the support block 35 from being deformed.

[0061] During adjustment, in order to ensure a stable connection between the support rod 22 and the auxiliary connector 31, a connection structure connected to the support rod 22 is provided at one end of the auxiliary connector 31 in this embodiment 2. For example, the connection structure includes a socket 36 provided on the auxiliary connector 31, and the end of the support rod 22 is inserted into the socket 36. In order to ensure a relatively stable connection, the auxiliary connector 31 is connected with a plug pin 32, and the end of the support rod 22 is provided with a plug hole that matches the plug pin 32. Secondly, the support rod 22 can be a hollow tube structure to reduce costs.

[0062] Example 3: See Figure 5 , a correction tool, comprising:

[0063] The center frame 2 is provided with a plurality of support rods 22 distributed radially in a circular shape;

[0064] An outer abutment block 6, one end of which abuts against the outer side surface of the annular member 1 to be corrected;

[0065] An inner abutment block 5, one end of which abuts against the inner side surface of the annular member 1 to be corrected;

[0066] The main length telescopic mechanism 4 is connected to the corresponding support rod 22 and the corresponding inner abutment block 5 , and is used to adjust the distance between the inner abutment block 5 and the support rod 22 .

[0067] The secondary length telescopic mechanism 3 is connected to the corresponding support rod 22 and the corresponding outer abutment block 6 , and is used to adjust the distance between the outer abutment block 6 and the support rod 22 .

[0068] This embodiment 3 combines the embodiments 1 and 2, and they are used together to correct the shape of the ring member 1.

[0069] Finally, the applicant needs to explain that the present application can be used not only for correction of mouth rings, but also for correction of other annular parts.

[0070] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A correction tool, characterized in that: It includes: A center frame is provided with a plurality of support rods distributed radially in a circular shape; An inner abutment block, one end of which abuts against the inner side surface of the annular member to be corrected; The main length telescopic mechanism is connected between the support rod and the inner abutment block and is used for adjusting the distance between the inner abutment block and the support rod.

2. The correction tool as claimed in claim 1, characterized in that: The main length extension mechanism includes A main connecting member connected to the support rod and a screw rod, one end of the screw rod abuts against the inner abutment block, and the other end of the screw rod extends into the main connecting member. The main connecting member is provided with a moving space for the screw rod to move. The screw rod is threadedly connected with an adjusting nut, and the adjusting nut abuts against the outer surface of the main connecting member.

3. The correction tool as claimed in claim 2, characterized in that: The moving space is located inside the main connecting part. The end surface of the main connecting part is provided with a through hole connected to the moving space. The screw rod passes through the through hole and extends into the moving space and connects to the limiting block. The limiting block is used to limit the screw rod from detaching from the moving space.

4. The correction tool as claimed in claim 3, characterized in that: The screw rod is sleeved with a spring, the spring is located in the moving space, and two ends of the spring are respectively against the limit block and the main connecting piece.

5. The correction tool as claimed in claim 1, characterized in that: The main length telescopic mechanism includes a first connecting rod connected to the support rod and a second connecting rod connected to the inner abutment block. An adjusting tube is connected between the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are both provided with external threads. Both ends of the adjusting tube are provided with internal threads, and the internal threads at both ends rotate in opposite directions. The two ends of the adjusting tube are respectively threadedly connected to the first connecting rod and the second connecting rod.

6. The correction tool as claimed in claim 2, characterized in that: One end of the main connecting piece is provided with a connecting structure connected to the support rod; the connecting structure includes a socket arranged on the main connecting piece, and the end of the support rod is inserted into the socket; the main connecting piece is connected with a plug, and the end of the support rod is provided with a plug hole matching the plug; the plug is inserted into the plug hole.

7. A correction tool, characterized in that: It includes: A center frame is provided with a plurality of support rods distributed radially in a circular shape; An outer abutment block, one end of which abuts against the outer side surface of the annular member to be corrected; The secondary length telescopic mechanism is connected between the support rod and the outer abutment block and is used for adjusting the distance between the outer abutment block and the support rod.

8. The correction tool as claimed in claim 7, characterized in that: The secondary length telescopic mechanism comprises a secondary connecting piece connected to the support rod; the outer end of the secondary connecting piece is connected to a support block, the support block is provided with a threaded through hole and connected to an adjusting bolt, one end of the adjusting bolt abuts against the outer abutment block.

9. The correction tool as claimed in claim 8, characterized in that: One end of the auxiliary connector is provided with a connecting structure connected to the support rod; the connecting structure includes a socket arranged on the auxiliary connector, and the end of the support rod is inserted into the socket; the auxiliary connector is connected with a plug, and the end of the support rod is provided with a plug hole matching the plug; the plug is inserted into the plug hole.

10. A correction tool, characterized in that: It includes: A center frame is provided with a plurality of support rods distributed radially in a circular shape; An outer abutment block, one end of which abuts against the outer side surface of the annular member to be corrected; An inner abutment block, one end of which abuts against the inner side surface of the annular member to be corrected; A main length telescopic mechanism, connected between the corresponding support rod and the corresponding inner abutment block, for adjusting the distance between the inner abutment block and the support rod; The secondary length telescopic mechanism is connected between the corresponding support rod and the corresponding outer abutment block and is used for adjusting the distance between the outer abutment block and the support rod.

Images