Centering tool

Abstract

The utility model relates to a centering tool which is used for centering a first coupler and a second coupler, the centering tool comprises two mounting mechanisms, a first connecting mechanism, a first dial indicator and a second dial indicator, and the two mounting mechanisms are arranged on the two opposite sides of the first coupler in the radial direction in a spaced mode; the installation mechanisms are provided with arc-shaped containing grooves used for being attached to the peripheral face of the first coupler so that the two installation mechanisms can jointly embrace the first coupler. The first connecting mechanism is connected with the two mounting mechanisms; the first dial indicator is connected to the mounting mechanism, and the first dial indicator is used for being in contact with the peripheral surface of the second coupler; the second dial indicator is connected to the mounting mechanism and used for making contact with the end face of the second coupler. The two mounting mechanisms are connected with the first coupler, so that the mounting stability of the first dial indicator and the second dial indicator is improved, and swinging / shaking of the first dial indicator and the second dial indicator during detection is reduced.

Description

Technical Field

[0001] This application relates to the field of China-to-China technology, and in particular to a China-to-China tool. Background Technology

[0002] Small water pumps and fans such as DEG, DEL, SEA, SVA, REA, and GST are widely used in the production and operation of power plants. The maintenance work of these small and medium-sized rotating machinery is mostly focused on the alignment of the rotating machinery (water pumps, fans or other rotating machinery) with the prime mover (electric motor).

[0003] During maintenance, a dial indicator is typically mounted on the prime mover via a stand. The dial indicator is then used to measure the deviation between the rotor shaft centerline of the rotating machinery and the rotor shaft centerline of the prime mover. If the deviation is within a preset range, it is determined that the rotor shaft of the prime mover and the rotor shaft of the rotating machinery are aligned (i.e., on the same horizontal line or on the same continuous curve). If the deviation is outside the preset range, it is determined that the rotor shaft of the prime mover and the rotor shaft of the rotating machinery are not aligned. In this case, the relative positions of the two are adjusted based on the deviation measured by the dial indicator.

[0004] However, the existing dial indicator frame has poor stability, and the dial indicator is prone to swinging during testing, which affects the accuracy of the dial indicator reading and thus the quality of the alignment maintenance. Utility Model Content

[0005] Therefore, it is necessary to provide a centering tool to address the problem of poor dial indicator stability, which causes the dial indicator to easily shake during testing.

[0006] An alignment tool for aligning a first coupling and a second coupling, the alignment tool comprising:

[0007] Two mounting mechanisms are spaced apart on opposite sides of the first coupling along the radial direction. Each mounting mechanism has an arc-shaped receiving groove for engaging with the outer peripheral surface of the first coupling, so that the two mounting mechanisms together engage with the first coupling.

[0008] A first connecting mechanism connects the two mounting mechanisms;

[0009] A first dial indicator is connected to the mounting mechanism and is used to contact the outer peripheral surface of the second coupling.

[0010] The second dial indicator is connected to the mounting mechanism and is used to contact the end face of the second coupling.

[0011] In one embodiment, the mounting mechanism includes a first clamping plate and a second clamping plate arranged opposite each other along the axial direction of the first coupling, and a locking member connecting the first clamping plate and the second clamping plate, wherein the first clamping plate and the second clamping plate are each provided with the receiving groove.

[0012] In one embodiment, the installation mechanism further includes a sleeve, and the first clamping plate and the second clamping plate are provided with limiting grooves on their adjacent sides, with the two ends of the sleeve respectively located in the two limiting grooves.

[0013] In one embodiment, the first clamping plate is provided with a first mounting hole, and the second clamping plate is provided with a second mounting hole;

[0014] The first mounting hole communicates with the limiting groove on the first clamping plate, and the second mounting hole communicates with the limiting groove on the second clamping plate. The locking member passes through the first mounting hole, the sleeve and the second mounting hole in sequence and is threaded to the second mounting hole.

[0015] In one embodiment, the mounting mechanism is provided with multiple sleeves of different lengths.

[0016] In one embodiment, the first connecting mechanism includes a first connector and a second connector, one end of the first connector being connected to a first clamping plate of one of the mounting mechanisms, and the other end of the first connector being connected to a first clamping plate of the other mounting mechanism;

[0017] One end of the second connector is connected to the second clamping plate of one of the mounting mechanisms, and the other end of the second connector is connected to the second clamping plate of the other mounting mechanism.

[0018] In one embodiment, the first clamping plate includes a first mounting portion and a second mounting portion arranged in a T-shape. The first mounting portion has the receiving groove on the side opposite to the second mounting portion. The first mounting portion has a first connecting hole for the first connecting member to pass through, and the second mounting portion has a first mounting hole for the locking member to pass through.

[0019] And / or, the second clamping plate includes a fourth mounting portion and a fifth mounting portion arranged in a T-shape, the fourth mounting portion having the receiving groove on the side opposite to the fifth mounting portion, the fourth mounting portion having a second connecting hole for the second connector to pass through, and the fifth mounting portion having a second mounting hole for the locking member to pass through.

[0020] In one embodiment, a second connecting mechanism is further included, the second connecting mechanism comprising:

[0021] An adjusting screw is parallel to the axial direction of the first coupling. One end of the adjusting screw is connected to the mounting mechanism, and the other end is provided with the first dial indicator and the second dial indicator.

[0022] Two adjusting nuts are sleeved on the adjusting screw. The two adjusting nuts are respectively located on both sides of the mounting mechanism along the axial direction and abut against the mounting mechanism.

[0023] In one embodiment, the second dial indicator is connected to one of the mounting mechanisms;

[0024] The alignment tool also includes a third dial indicator connected to another of the mounting mechanisms, the third dial indicator being used to contact the end face of the second coupling.

[0025] In one embodiment, there are two second connecting mechanisms, which are respectively connected to the two mounting mechanisms, and the second dial indicator and the third dial indicator are respectively mounted on one of the second connecting mechanisms.

[0026] The aforementioned alignment tool allows the two mounting mechanisms to engage with the first coupling, thereby installing the mounting mechanisms onto the first coupling. The two mounting mechanisms are arranged radially along the first coupling and interconnected, ensuring the connection stability between the mounting mechanisms and the first coupling. Furthermore, the mounting mechanisms have receiving grooves that fit snugly against the outer circumferential surface of the first coupling, increasing the contact area between the mounting mechanisms and the first coupling, further improving the installation stability of the mounting mechanisms. The first and second dial indicators are connected to the mounting mechanism. The first dial indicator contacts the outer circumferential surface of the second coupling to detect the radial error of the second coupling during rotation. The second dial indicator contacts the end face of the second coupling to detect the axial error of the second coupling during rotation. The deviation data detected by the first and second dial indicators are compared with a preset data range. If the deviation data is within the preset data range, the first and second couplings are considered aligned. If the deviation data is outside the preset data range, the first and second couplings are considered misaligned. In this case, the operator adjusts the position of the second coupling based on the detected deviation data to align the first and second couplings.

[0027] The alignment tool of this application has a first dial indicator and a second dial indicator connected to the mounting mechanism. By increasing the connection stability between the two mounting mechanisms and the first coupling, the installation stability of the first and second dial indicators is increased, and the swaying / shaking of the first and second dial indicators during testing is reduced. This improves the reading accuracy of the first and second dial indicators and enhances the quality of alignment maintenance. Attached Figure Description

[0028] Figure 1 A schematic diagram of the alignment tool provided in this application embodiment being assembled on the first coupling and the second coupling.

[0029] Figure 2 A cross-sectional view of the installation mechanism provided in an embodiment of this application.

[0030] Figure 3 This is a schematic diagram of the structure of the first clamping plate provided in an embodiment of this application.

[0031] Figure 4 This is a schematic diagram of the structure of the second connecting mechanism provided in an embodiment of this application.

[0032] Figure 5 This is a schematic diagram of the structure of the second clip provided in an embodiment of this application.

[0033] Figure 6 This is a schematic diagram of the structure of the third clip provided in an embodiment of this application.

[0034] Figure label:

[0035] 100. Mounting mechanism; 110. First clamping plate; 111. First mounting part; 1111. First connecting hole; 112. Second mounting part; 1121. First mounting hole; 1122. First lead screw hole; 113. Third mounting part; 1131. Receiving groove; 120. Second clamping plate; 130. Locking element; 140. Sleeve; 141. Limiting groove;

[0036] 200. First Percentage Table;

[0037] 300. Second Percentage Table;

[0038] 400. Second connecting mechanism; 410. Adjusting screw; 420. Adjusting nut; 430. First gauge clamp; 431. First limiting hole; 432. First locking hole; 433. First abutting rod; 440. Second gauge clamp; 441. Second limiting hole; 442. Second locking hole; 443. Second abutting rod; 450. Third gauge clamp; 451. Third limiting hole; 452. Third locking hole;

[0039] 500, Third Percentage Table;

[0040] 600. First coupling;

[0041] 700, Second Coupling. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0048] This application provides an alignment tool for aligning a first coupling 600 and a second coupling 700, such as... Figures 1 to 6 As shown, the alignment tool includes two mounting mechanisms 100, a first connecting mechanism, a first dial indicator 200, and a second dial indicator 300. The two mounting mechanisms 100 are spaced apart on opposite radial sides of the first coupling 600. Each mounting mechanism 100 has an arc-shaped receiving groove 1131 for engaging with the outer peripheral surface of the first coupling 600, so that the two mounting mechanisms 100 together engage with the first coupling 600. The first connecting mechanism connects the two mounting mechanisms 100. The first dial indicator 200 is connected to the mounting mechanism 100 and is used to contact the outer peripheral surface of the second coupling 700. The second dial indicator 300 is connected to the mounting mechanism 100 and is used to contact the end face of the second coupling 700.

[0049] The aforementioned alignment tool positions two mounting mechanisms 100 at intervals on opposite radial sides of the first coupling 600, creating a gap between them. A first connecting mechanism connects the two mounting mechanisms 100, which together engage with the first coupling 600, thus mounting the mounting mechanisms 100 onto the first coupling 600. This radial arrangement and interconnection ensures the connection stability between the mounting mechanisms 100 and the first coupling 600. Furthermore, each mounting mechanism 100 has a receiving groove 1131 that fits snugly against the outer circumferential surface of the first coupling 600, increasing the contact area and further enhancing the installation stability of the mounting mechanism 100. A first dial indicator 200 and a second dial indicator 300 are connected to the mounting mechanism 100. The first dial indicator 200 contacts the outer peripheral surface of the second coupling 700 to detect the radial error of the second coupling 700 during rotation. The second dial indicator 300 contacts the end face of the second coupling 700 to detect the axial error of the second coupling 700 during rotation. The deviation data detected by the first dial indicator 200 and the second dial indicator 300 are compared with the preset data range. If the deviation data is within the preset data range, it is determined that the first coupling 600 and the second coupling 700 are aligned. If the deviation data is outside the preset data range, it is determined that the first coupling 600 and the second coupling 700 are not aligned. At this time, the operator adjusts the position of the second coupling 700 according to the detected deviation data, so that the first coupling 600 and the second coupling 700 can be aligned.

[0050] The alignment tool of this application has a first dial indicator 200 and a second dial indicator 300 connected to the mounting mechanism 100. By increasing the connection stability between the two mounting mechanisms 100 and the first coupling 600, the installation stability of the first dial indicator 200 and the second dial indicator 300 is increased, and the swaying / shaking of the first dial indicator 200 and the second dial indicator 300 during testing is reduced. This improves the reading accuracy of the first dial indicator 200 and the second dial indicator 300 and enhances the quality of alignment maintenance.

[0051] It should be noted that the first coupling 600 is provided with two mounting mechanisms 100. The first dial indicator 200 and the second dial indicator 300 are connected to the mounting mechanism 100. The first dial indicator 200 and the second dial indicator 300 can be connected to the same mounting mechanism 100 or to different mounting mechanisms 100, as long as the first dial indicator 200 can detect the radial error when the second coupling 700 rotates and the second dial indicator 300 can detect the axial error when the second coupling 700 rotates.

[0052] In the embodiments of this application, such as Figure 1 As shown, the first dial indicator 200 and the second dial indicator 300 are connected to the same mounting mechanism 100.

[0053] In other embodiments, the first dial gauge 200 and the second dial gauge 300 are respectively connected to two mounting mechanisms 100.

[0054] It should be noted that in this field, different rotating machines and prime movers correspond to different couplings, so the relative positions between the first coupling 600 and the second coupling 700 are also different. In some embodiments, the first coupling 600 and the second coupling 700 are closer in the axial direction and may fit together; in other embodiments, the first coupling 600 and the second coupling 700 are farther in the axial direction and have a larger gap between them.

[0055] In one embodiment, such as Figures 1 to 3 As shown, the mounting mechanism 100 includes a first clamping plate 110 and a second clamping plate 120 arranged axially at intervals along the first coupling 600, and a locking member 130 connecting the first clamping plate 110 and the second clamping plate 120. Both the first clamping plate 110 and the second clamping plate 120 are provided with receiving grooves 1131. By providing the first clamping plate 110 and the second clamping plate 120, and each of them having a receiving groove 1131, the walls of the receiving grooves 1131 are fitted against the first coupling 600. The locking member 130 connects the first clamping plate 110 and the second clamping plate 120.

[0056] In this embodiment, the locking member 130 is a countersunk hexagonal head reamer positioning screw. The smooth part of the countersunk hexagonal head reamer positioning screw is fitted with the first clamping plate 110 with a tolerance of 0-0.02mm, and the threaded part is fitted with the second clamping plate 120 with a tolerance of H7.

[0057] In one embodiment, such as Figures 1 to 3 As shown, the installation mechanism 100 also includes a sleeve 140. Limiting grooves 141 are provided on the sides of the first clamping plate 110 and the second clamping plate 120 that are close to each other. The two ends of the sleeve 140 are respectively located within the two limiting grooves 141. By providing the sleeve 140, with its two ends respectively located within the two limiting grooves 141, the relative positions of the first clamping plate 110 and the second clamping plate 120 are defined by the sleeve 140.

[0058] It should be noted that the side of the first clamping plate 110 and the second clamping plate 120 that are close to each other refers to the surface of the first clamping plate 110 that is close to the second clamping plate 120 along the axial direction, and the surface of the second clamping plate 120 that is close to the first clamping plate 110 along the axial direction.

[0059] In this embodiment, the sleeve 140 adopts a sink-in positioning, the groove depth of the limiting groove 141 is 4mm, that is, the sinking depth of the sleeve 140 is 4mm, and the form and position tolerances at the mating point are perpendicularity 0.02mm and parallelism 0.02mm.

[0060] In one example, such as Figures 1 to 3 As shown, the mounting mechanism 100 is provided with multiple sleeves 140 of different lengths. By providing multiple sleeves 140 of different lengths, this application allows for the selection of different length sleeves 140 when corresponding to different lengths of the first coupling 600, thereby adjusting the relative positions of the first clamping plate 110, the second clamping plate 120, and the first coupling 600.

[0061] In this embodiment, as Figures 1 to 3 As shown, the first clamping plate 110 has a first mounting hole 1121, and the second clamping plate 120 has a second mounting hole. The first mounting hole 1121 communicates with the limiting groove 141 on the first clamping plate 110, and the second mounting hole communicates with the limiting groove 141 on the second clamping plate 120. The locking member 130 passes through the first mounting hole 1121, the sleeve 140, and the second mounting hole in sequence and is threaded into the second mounting hole. By having the locking member 130 pass through the first mounting hole 1121, the sleeve 140, and the second mounting hole in sequence, the relative positions of the first clamping plate 110, the sleeve 140, and the second clamping plate 120 are further defined based on the connection between the first clamping plate 110 and the second clamping plate 120.

[0062] In this embodiment, the first mounting hole 1121 is a smooth hole, and the second mounting hole is a threaded hole. After passing through the second mounting hole, the locking member 130 can be threadedly connected to the second mounting hole.

[0063] In this embodiment, as Figures 1 to 3 As shown, the first clamping plate 110 includes a first mounting portion 111 and a second mounting portion 112 arranged in a T shape, and a third mounting portion 113 provided on the side of the first mounting portion 111 away from the second mounting portion 112. The second mounting portion 112 is provided with a first mounting hole 1121, and the third mounting portion 113 is provided with a receiving groove 1131.

[0064] In this embodiment, the second clamping plate 120 includes a fourth mounting portion and a fifth mounting portion arranged in a T-shape, and a sixth mounting portion provided on the side of the fourth mounting portion away from the fifth mounting portion, and the sixth mounting portion is provided with a receiving groove 1131.

[0065] It should be noted that in this embodiment, the second clamping plate 120 and the first clamping plate 110 have the same structure, except that the second mounting hole provided on the second clamping plate 120 is a threaded hole, and the locking member 130 passes through the first mounting hole 1121, the sleeve 140 and the second mounting hole in sequence and is threadedly connected to the second mounting hole.

[0066] In this embodiment, as Figures 1 to 3 As shown, the second mounting part 112 of the first clamping plate 110 is provided with two first mounting holes 1121, the fifth mounting part of the second clamping plate 120 is provided with two second mounting holes, two locking members 130 are provided, and two sleeves 140 are provided. Each locking member 130 passes through the corresponding first mounting hole 1121, sleeve 140 and second mounting hole in sequence.

[0067] Furthermore, such as Figures 1 to 3 As shown, to connect the two mounting mechanisms 100, the first connecting mechanism includes a first connecting member and a second connecting member. One end of the first connecting member is connected to the first clamping plate 110 of one of the mounting mechanisms 100, and the other end is connected to the first clamping plate 110 of the other mounting mechanism 100. One end of the second connecting member is connected to the second clamping plate 120 of one of the mounting mechanisms 100, and the other end is connected to the second clamping plate 120 of the other mounting mechanism 100. By setting the first connecting member, the two first clamping plates 110 of the two mounting mechanisms 100 are connected; by setting the second connecting member, the two second clamping plates 120 of the two mounting mechanisms 100 are connected.

[0068] In one example, such as Figures 1 to 3 As shown, the first clamping plate 110 includes a first mounting portion 111 and a second mounting portion 112 arranged in a T-shape. The first mounting portion 111 has a receiving groove 1131 on the side opposite to the second mounting portion 112. The first mounting portion 111 has a first connecting hole 1111 for the passage of a first connecting member, and the second mounting portion 112 has a first mounting hole 1121 for the passage of a locking member 130. By providing the first connecting hole 1111 on the first mounting portion 111 of the first clamping plate 110, the first connecting member passes radially through the two first connecting holes 1111 sequentially when connecting the two first clamping plates 110, thereby connecting the two first clamping plates 110 of the two mounting mechanisms 100. By providing the first mounting hole 1121 on the second mounting portion 112, it is convenient to connect the first clamping plate 110 and the second clamping plate 120 in the same mounting mechanism 100.

[0069] In this embodiment, as Figures 1 to 3 As shown, the first mounting part 111 is provided with two first connecting holes 1111, and the second mounting part 112 is provided with two first mounting holes 1121. The arrangement direction of the two first connecting holes 1111 is perpendicular to the arrangement direction of the two first mounting holes 1121, and the two first mounting holes 1121 are located between the two first connecting holes 1111.

[0070] In this embodiment, the first connector includes a connecting screw and two connecting nuts. The connecting screw passes through the two first connecting holes 1111 of the two first clamping plates 110. The two connecting nuts are both sleeved on the connecting screw and tightened to abut against the first mounting part 111 of the first clamping plate 110. The two connecting nuts abut against the two first clamping plates 110 one by one, and the connecting nuts are located on the side of the first mounting part 111 away from the first coupling 600.

[0071] As mentioned above, the second clamping plate 120 includes a fourth mounting part, a fifth mounting part, and a sixth mounting part. The fourth mounting part and the fifth mounting part are arranged in a T-shape. The fourth mounting part is provided with a second connecting hole for the second connecting member to pass through. The fifth mounting part is provided with a second mounting hole for the locking member to pass through. The sixth mounting part is located on the side of the fourth mounting part away from the fifth mounting part. The sixth mounting part is provided with a receiving groove 1131.

[0072] The second clamping plate 120 has two second connecting holes on its fourth connecting part. The structure of the second connector is the same as that of the first connector. When the two second clamping plates 120 of the two mounting mechanisms 100 are connected by the second connector, the connecting screw of the second connector passes through the two second connecting holes of the two second clamping plates 120. The two connecting nuts are both sleeved on the connecting screw and tightened to abut against the fourth mounting part of the second clamping plate 120. The two connecting nuts abut against the two second clamping plates 120 one by one, and the connecting nuts are located on the side of the fourth mounting part away from the first coupling.

[0073] Furthermore, in this embodiment, the first dial indicator 200 and the second dial indicator 300 are connected to the same mounting mechanism 100. To achieve the connection between the first dial indicator 200 and the second dial indicator 300 and the mounting mechanism 100, as follows: Figure 1 , Figures 4 to 5 As shown, the centering tool also includes a second connecting mechanism 400, which includes an adjusting screw 410 and two adjusting nuts 420. The adjusting screw 410 is parallel to the axial direction of the first coupling 600. One end of the adjusting screw 410 is connected to the mounting mechanism 100, and the other end is provided with a first dial indicator 200 and a second dial indicator 300. The two adjusting nuts 420 are sleeved on the adjusting screw 410 and are respectively located on both sides of the mounting mechanism 100 along the axial direction, abutting against the mounting mechanism 100.

[0074] By setting an adjusting screw 410, a first dial indicator 200 and a second dial indicator 300 are connected to the end of the adjusting screw 410 facing away from the mounting mechanism 100. Two adjusting nuts 420 are fitted onto the adjusting screw 410, abutting against the mounting mechanism 100. Specifically, one adjusting nut 420 abuts against the side of the first clamping plate 110 facing away from the second clamping plate 120, and the other adjusting nut 420 abuts against the side of the second clamping plate 120 facing away from the first clamping plate 110. This clamping of the mounting mechanism 100 by the two adjusting nuts 420 improves the connection stability between the second connecting mechanism 400 and the mounting mechanism 100. Furthermore, adjusting the position of the two adjusting nuts 420 on the adjusting screw 410 allows for adjusting the positions of the first dial indicator 200 and the second dial indicator 300, enabling the alignment tool to be used with first couplings 600 and second couplings 700 at different pitches, effectively improving the versatility of the alignment tool.

[0075] In this embodiment, as Figure 1 , Figures 4 to 5 As shown, a first lead screw hole 1122 is provided on the second mounting part 112 of the first clamping plate 110, and the first lead screw hole 1122 is located between two first mounting holes 1121; a second lead screw hole is provided on the second mounting part 112 of the second clamping plate 120, and the second lead screw hole is located between two second mounting holes, and the adjusting lead screw 410 passes through the first lead screw hole 1122 and the second lead screw hole in sequence.

[0076] In this embodiment, as Figure 3 As shown, the first lead screw hole 1122 is an elongated hole.

[0077] In this embodiment, as Figure 1 , Figures 4 to 5 As shown, the second connecting mechanism 400 also includes a first gauge clamp 430 and a second gauge clamp 440. The first gauge clamp 430 is provided with a first dial indicator 200, and the second gauge clamp 440 is provided with a second dial indicator 300. The second gauge clamp 440 is connected to the end of the adjusting screw 410 that is away from the mounting mechanism 100, and the first gauge clamp 430 is connected to the second gauge clamp 440.

[0078] In this embodiment, as Figure 1 , Figures 4 to 5 As shown, the first gauge clamp 430 is provided with a first limiting hole 431 and a first locking hole 432, and the second gauge clamp 440 is provided with a second limiting hole 441 and a second locking hole 442. The first limiting hole 431 is used for the first dial indicator 200 to pass through, and the second limiting hole 441 is used for the second dial indicator 300 to pass through. The first locking hole 432 and the second locking hole 442 are connected to each other. The screw passes through the first locking hole 432 and the second locking hole 442 in sequence and is threaded to the second locking hole 442 to connect to the first gauge clamp 430 and the second gauge clamp 440.

[0079] In this embodiment, as Figure 1 , Figures 4 to 5 As shown, the first gauge clamp 430 is provided with a first abutting rod 433, which can pass through the first limiting hole 431 and abut against the first dial indicator 200 to prevent the first dial indicator 200 from shaking in the first limiting hole 431.

[0080] In this embodiment, as Figure 1 , Figures 4 to 5 As shown, the second gauge clamp 440 is provided with a second abutting rod 443, which can pass through the second limiting hole 441 and abut against the second dial indicator 300 to prevent the second dial indicator 300 from shaking in the second limiting hole 441.

[0081] In other embodiments, such as Figure 6 As shown, the second connecting mechanism 400 also includes a third gauge clamp 450, which includes a third limiting hole 451 and a third locking hole 452. The third limiting hole 451 is for a dial indicator to pass through, and a screw passes through the third locking hole 452 and is threaded to the adjusting screw 410 to connect the third gauge clamp 450 and the adjusting screw 410.

[0082] It should be noted that the dial indicator clamp has various structures, and the dial indicator has various mounting structures, as long as the connection between the dial indicator and the adjusting screw 410 can be achieved.

[0083] Furthermore, in order to improve the detection accuracy of deviation data, such as Figure 1 As shown, the second dial indicator 300 is connected to one of the mounting mechanisms 100; the centering tool also includes a third dial indicator 500 connected to the other mounting mechanism 100, the third dial indicator 500 being used to contact the end face of the second coupling 700. By providing the third dial indicator 500, and by connecting the third dial indicator 500 and the second dial indicator 300 to the two mounting mechanisms 100 respectively, the mutual influence between the third dial indicator 500 and the second dial indicator 300 is reduced.

[0084] This application sets up a first dial indicator 200, a second dial indicator 300, and a third dial indicator 500. The three dial indicators work together, and each time the first coupling 600 and the second coupling 700 rotate synchronously by 90°, the readings of the first dial indicator 200, the second dial indicator 300, and the third dial indicator 500 are recorded. After rotating 360°, 12 sets of data can be obtained. Then, the data are calculated to obtain the deviation data of the rotor shaft centerline of the first coupling 600 and the rotor shaft centerline of the second coupling 700.

[0085] In this embodiment, the second dial indicator 300 and the third dial indicator 500 are arranged radially, where radial refers to the radial direction of the second coupling 700.

[0086] It should be noted that the second dial indicator 300 and the third dial indicator 500 are in contact with the end face of the second coupling 700. Specifically, the second dial indicator 300 and / or the third dial indicator 500 can contact the end face of the second coupling 700 on the side closer to the first coupling 600. If the gap between the first coupling 600 and the second coupling 700 is small, the second dial indicator 300 and / or the third dial indicator 500 can also contact the end face of the second coupling 700 on the side away from the first coupling 600.

[0087] In this embodiment, as Figure 1 As shown, there are two second connecting mechanisms 400, which are respectively connected to two mounting mechanisms 100. A second dial indicator 300 and a third dial indicator 500 are each mounted on one of the second connecting mechanisms 400. That is, two mounting mechanisms 100 are engaged with the first coupling 600, and two second connecting mechanisms 400 are respectively connected to the two mounting mechanisms 100. A first dial indicator 200 and a second dial indicator 300 are mounted on one of the second connecting mechanisms 400, and a third dial indicator 500 is mounted on the other second connecting mechanism 400.

[0088] Furthermore, the centering tool also includes a lighting mechanism, which includes light-emitting diodes, batteries, and switches. The lighting mechanism is used for illumination in factory environments with insufficient light sources or in low-light backgrounds.

[0089] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A centering tool characterized in that, The alignment tool is used for aligning the first coupling (600) and the second coupling (700), and includes: Two mounting mechanisms (100) are spaced apart on opposite sides of the first coupling (600) along the radial direction. Each mounting mechanism (100) has an arc-shaped receiving groove (1131) for engaging with the outer peripheral surface of the first coupling (600) so that the two mounting mechanisms (100) together engage with the first coupling (600). A first connecting mechanism connects the two mounting mechanisms (100); A first dial indicator (200) is connected to the mounting mechanism (100) and is used to contact the outer peripheral surface of the second coupling (700). A second dial indicator (300) is connected to the mounting mechanism (100) and is used to contact the end face of the second coupling (700).

2. The centering tool of claim 1, wherein, The mounting mechanism (100) includes a first clamping plate (110) and a second clamping plate (120) arranged opposite each other along the axial direction of the first coupling (600), and a locking member (130) connecting the first clamping plate (110) and the second clamping plate (120). The first clamping plate (110) and the second clamping plate (120) are each provided with the receiving groove (1131).

3. The centering tool of claim 2, wherein, The installation mechanism (100) further includes a sleeve (140), and a limiting groove (141) is provided on the side of the first clamping plate (110) and the second clamping plate (120) that are close to each other. The two ends of the sleeve (140) are respectively located in the two limiting grooves (141).

4. The centering tool of claim 3, wherein, The first clamping plate (110) is provided with a first mounting hole (1121), and the second clamping plate (120) is provided with a second mounting hole; The first mounting hole (1121) communicates with the limiting groove (141) on the first clamping plate (110), and the second mounting hole communicates with the limiting groove (141) on the second clamping plate (120). The locking member (130) passes through the first mounting hole (1121), the sleeve (140) and the second mounting hole in sequence and is threaded to the second mounting hole.

5. The centering tool of claim 3, wherein, The installation mechanism (100) is provided with multiple sleeves (140) of different lengths.

6. The centralizing tool of claim 2, wherein, The first connecting mechanism includes a first connecting member and a second connecting member. One end of the first connecting member is connected to the first clamping plate (110) of one of the mounting mechanisms (100), and the other end of the first connecting member is connected to the first clamping plate (110) of the other mounting mechanism (100). One end of the second connector is connected to the second clamping plate (120) of one of the mounting mechanisms (100), and the other end of the second connector is connected to the second clamping plate (120) of the other mounting mechanism (100).

7. The centralizing tool of claim 6, wherein, The first clamping plate (110) includes a first mounting portion (111) and a second mounting portion (112) arranged in a T-shape. The first mounting portion (111) has the receiving groove (1131) on the side opposite to the second mounting portion (112). The first mounting portion (111) has a first connecting hole (1111) for the first connecting member to pass through. The second mounting portion (112) has a first mounting hole (1121) for the locking member (130) to pass through. And / or, the second clamping plate (120) includes a fourth mounting portion and a fifth mounting portion arranged in a T shape, the fourth mounting portion having the receiving groove (1131) on the side opposite to the fifth mounting portion, the fourth mounting portion having a second connecting hole for the second connector to pass through, and the fifth mounting portion having a second mounting hole for the locking member to pass through.

8. The centering tool of any one of claims 1-7, wherein, It also includes a second connecting mechanism (400), which includes: The adjusting screw (410) is parallel to the axial direction of the first coupling (600). One end of the adjusting screw (410) is connected to the mounting mechanism (100), and the other end is provided with the first dial indicator (200) and the second dial indicator (300). Two adjusting nuts (420) are sleeved on the adjusting screw (410). The two adjusting nuts (420) are respectively located on both sides of the mounting mechanism (100) along the axial direction and abut against the mounting mechanism (100).

9. The centralizing tool of claim 8, wherein, The second dial indicator (300) is connected to one of the mounting mechanisms (100); The alignment tool also includes a third dial indicator (500) connected to another of the mounting mechanisms (100), the third dial indicator (500) being used to contact the end face of the second coupling (700).

10. The centralizing tool of claim 9, wherein, There are two second connecting mechanisms (400), which are respectively connected to the two mounting mechanisms (100). The second dial indicator (300) and the third dial indicator (500) are respectively mounted on one of the second connecting mechanisms (400).

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