A coupling centering device

Abstract

The utility model discloses a coupling centering device relates to frock auxiliary equipment technical field, and the coupling includes respectively for connecting the first coupling and second coupling of two shafts, the centering device includes frock main part, a plurality of limiting components and dial gauge components, be provided with the central hole for the first coupling of wearing and being configured as coaxial with the first coupling setting of frock main part, a plurality of limiting components, the circumference of the central hole is distributed in the circumferential side of frock main part, for connecting the first coupling, to make frock main part can rotate around the first coupling, dial gauge components detachable setting on the frock main part or limiting component, be configured as with frock main part rotates and gathers the data of a plurality of positions on the second coupling. Based on the technical scheme disclosed by the utility model, reduce the coupling centering workload, save manpower, improve the coupling centering precision, facilitate two shafts alignment and centering.

Description

Technical Field

[0001] This utility model relates to the field of tooling auxiliary equipment technology, specifically to a coupling alignment device. Background Technology

[0002] The rotation centers of the two shafts connected by the pump and motor coupling must be strictly concentric. After the pump shaft is aligned and leveled, the motor coupling must be precisely aligned and aligned with the pump shaft coupling during installation. Otherwise, significant stress will be incurred on the coupling, severely affecting the normal operation of the shaft, bearings, impeller, and other components, and may even cause vibration or damage to the entire pump and motor. Therefore, aligning the pump and motor coupling is one of the most crucial steps in installation and maintenance.

[0003] In related technologies, the alignment of pump and motor couplings is often achieved by manually rotating the coupling and measuring the distance between the two couplings using a dial indicator or a straightedge. For large motors, manual rotation is labor-intensive, difficult for a single person to operate, and the uneven force applied during manual rotation also affects the accuracy of the measurement. Using a straightedge to measure the distance is not very accurate, also affecting the alignment effect. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a coupling alignment device to solve the technical problems of large workload, high manpower consumption, and low alignment accuracy in the existing coupling alignment.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a coupling alignment device, the coupling including a first coupling and a second coupling for connecting two shafts respectively, the alignment device including: The tooling body has a central hole for the first coupling to pass through, and is configured to be coaxial with the first coupling. Multiple limiting components are distributed circumferentially around the central hole on the periphery of the tooling body for connecting to a first coupling, so that the tooling body can rotate about the first coupling; and A dial indicator assembly, detachably mounted on the tooling body or one of the limiting components, is configured to rotate with the tooling body and collect data at multiple positions on the second coupling.

[0006] In some embodiments, the tooling body is a flange, and the flange has an annular structure; the limiting component is detachably mounted on the flange.

[0007] In some embodiments, the flange includes a plurality of sub-discs arranged circumferentially around the central hole, the plurality of sub-discs being detachably connected to each other and assembled together to form the flange.

[0008] In some embodiments, the flange is provided with a plurality of fasteners, which are circumferentially distributed around the central hole and respectively disposed at the splicing points of the plurality of sub-discs for connecting two sub-discs at corresponding positions.

[0009] In some embodiments, the limiting component includes: A centering block is disposed on one side of the flange along the radial direction of the central hole; A first connecting member is disposed on one side of the centering block for abutting against the side of the first coupling opposite to the second coupling; and / or The second connecting piece is located on the other side of the centering block and is used to abut against the outer circumference of the first coupling.

[0010] In some embodiments, the first connector and / or the second connector are rolling bearings, which abut against the corresponding surfaces of the first coupling.

[0011] In some embodiments, a rotating handle is fixedly provided on one side of the centering block.

[0012] In some embodiments, a plurality of adjusting plates are fixedly disposed on the flange, and the plurality of adjusting plates correspond to the plurality of limiting components respectively; the centering block is slidably disposed on the corresponding adjusting plate along the radial direction of the central hole, and the adjusting plate is also provided with a locking member for locking the centering block.

[0013] In some embodiments, the dial indicator assembly is detachably fixed to the centering block and can be radially adjusted along with the centering block.

[0014] In some embodiments, the percentage meter component includes: The measuring bracket is detachably and fixedly mounted on the side of the centering block near the second coupling; and A dial indicator is fixedly mounted on the measuring bracket and is used to collect data from multiple positions on the second coupling.

[0015] Compared with the prior art, the coupling alignment device provided by this utility model allows the tooling body to be fitted onto the outside of the first coupling through the central hole, and multiple limiting components are distributed around the periphery of the tooling body. A dial indicator component is set on the tooling body or one of the limiting components. The dial indicator is used to collect data from multiple positions on the second coupling, which facilitates the alignment adjustment of the coupling, reduces the amount of alignment work, saves manpower, and helps to improve the alignment accuracy of the coupling, making it easier to align and center the two shafts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of the centering device on the coupling in one embodiment of the present invention; Figure 2 This is a cross-sectional view of the centering device (without dial indicator assembly) in one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the flange and the adjusting plate in one embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the disk body in one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the adjustment plate in one embodiment of the present invention; Figure 6 This is a schematic diagram showing the sequence of four readings of the dial indicator on the outer circumference of the second coupling in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 100, motor shaft; 200, water pump shaft; 300, coupling; 310, first coupling; 320, second coupling; 1, flange; 11, center hole; 12, dividing plate body; 2, limit assembly; 21, centering block; 22, first connecting piece; 23, second connecting piece; 24, rotating handle; 3, dial indicator assembly; 31, measuring bracket; 32, dial indicator; 4, adjusting plate; 41, adjusting part; 411, adjusting groove; 42, fixing part; 5, locking bolt. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] To solve the above-mentioned technical problems, this utility model provides a coupling alignment device, which facilitates coupling alignment adjustment, reduces the amount of coupling alignment work, saves manpower, and helps improve the alignment accuracy of the coupling, making it easier to align and center the two shafts.

[0020] Please see Figure 1 This utility model provides a coupling alignment device, which can be used for the alignment of couplings between two shafts. For example, it can be applied to the alignment of coupling 300 on motor shaft 100 and water pump shaft 200, and can also be applied to other situations of two-shaft alignment and connection.

[0021] For ease of understanding, the following description will take the alignment of the motor and the upper coupling 300 of the water pump as an example, but it does not mean that the alignment device is only applicable to this application scenario.

[0022] It is understood that in related technologies, coupling 300 typically includes a first coupling 310 and a second coupling 320. The first coupling 310 and the second coupling 320 can be coaxially mounted on the motor shaft 100 and the water pump shaft 200, respectively. After the two shafts are connected, the first coupling 310 can be connected to the second coupling 320, thereby realizing the transmission between the motor shaft 100 and the water pump shaft 200.

[0023] Please see Figure 1-2 In this embodiment, the coupling alignment device includes a tooling body, on which multiple limiting components 2 are provided, and on the tooling body or one of the limiting components 2, a dial indicator component 3 is provided.

[0024] The tooling body is provided with a center hole 11, which allows the tooling body to be coaxially mounted on the first coupling 310. Multiple limit components 2 can be connected to the first coupling 310, allowing the tooling body to rotate on the first coupling 310. The dial indicator component 3 can be mounted on the tooling body or one of the limit components 2, allowing the dial indicator component 3 to rotate synchronously with the tooling body and collect data from multiple positions on the second coupling 320 for two-axis alignment adjustment.

[0025] The main body of the aforementioned tooling can be a flange 1, which can be configured as an annular structure so that it can be fitted onto the outside of the first coupling 310 and coaxially arranged with the first coupling 310. In this case, the through hole on the inner side of the annular structure of the flange 1 can constitute the aforementioned center hole 11.

[0026] In one embodiment, please refer to Figure 3-4 The flange 1 can be divided into multiple sub-discs 12 along the circumference. The multiple sub-discs 12 are evenly distributed around the central hole 11 and can be spliced ​​together to form the flange 1.

[0027] Based on this, in order to form an integral structure, the flange 1 is also provided with multiple fasteners. These fasteners can be respectively set at the splicing points of multiple sub-plate bodies 12 to connect two sub-plate bodies 12 at corresponding positions. Specifically, the fastener can be any component capable of connecting two sub-plate bodies 12, such as a fixing plate, and there is no specific limitation on this.

[0028] In this way, flange 1 can be disassembled into multiple sub-discs 12 for easy storage; when two-shaft alignment is required, multiple sub-discs 12 can be directly assembled onto the first coupling 310, making it convenient to install flange 1 onto the first coupling 310. This is especially suitable for large motor applications to improve installation convenience.

[0029] It should be noted that the specific number of the aforementioned sub-plates 12 can be set as needed. For example, in one embodiment, the sub-plates 12 can be set to 3, that is, each sub-plate 12 covers a 120° area on the flange 1, so that the sub-plates 12 can be spliced ​​together to form a complete flange 1.

[0030] In this embodiment, the aforementioned multiple limiting components 2 can be respectively disposed on the periphery of the flange 1, and the multiple limiting components 2 can be simultaneously connected to the inner first coupling 310, thereby enabling the flange 1 to form a rotational fit with the inner first coupling 310.

[0031] In one embodiment, please refer to Figure 2 The aforementioned multiple limiting components 2 can be evenly distributed circumferentially around the flange 1. Taking any one of the limiting components 2 as an example, the limiting component 2 includes a centering block 21 and a first connecting member 22. The centering block 21 can be fixedly disposed on the side of the flange 1 near the second coupling 320. The first connecting member 22 can be disposed on the side of the centering block 21 near the center of the center hole 11, or on the side of the centering block 21 away from the flange 1.

[0032] Thus, when the flange 1 is fitted onto the outside of the first coupling 310, the first connecting member 22 can abut against the side of the first coupling 310 opposite to the second coupling 320, or it can abut against the outer circumference of the first coupling 310. In this way, the first connecting members 22 on the multiple limiting components 2 simultaneously abut against the first coupling 310, allowing the flange 1 to form a rotational fit with the first coupling 310 through the multiple limiting components 2.

[0033] In one embodiment, please refer to Figure 2 The aforementioned limiting component 2 includes a centering block 21, a first connecting member 22, and a second connecting member 23. The centering block 21 is fixedly disposed on the side of the flange 1 near the second coupling 320; the first connecting member 22 can be disposed on the side of the centering block 21 near the center of the center hole 11, while the second connecting member 23 can be disposed on the side of the centering block 21 away from the flange 1.

[0034] In this way, when flange 1 is fitted onto the outside of the first coupling 310, the first connecting member 22 can abut against the side of the first coupling 310 away from the second coupling 320, and the second connecting member 23 can abut against the outer circumference of the first coupling 310. Thus, the multiple limiting components 2 cooperate with each other, allowing flange 1 to form a rotational fit with the first coupling 310 through the multiple limiting components 2, and fully ensuring the stability of flange 1 on the first coupling 310.

[0035] It should be noted that the first connecting member 22 and the second connecting member 23 described above can be components with a relatively low coefficient of friction, such as bearing bushes or similar components. However, in one embodiment, both the first connecting member 22 and the second connecting member 23 are preferably rolling bearings. The two rolling bearings are respectively rotatably disposed on the corresponding sides of the centering block 21 and can form a rolling fit with the first coupling 310 to reduce the friction between them and the first coupling 310.

[0036] Based on this, a rotating handle 24 can also be provided on the centering block 21. The rotating handle 24 is preferably located on the side of the centering block 21 near the second connecting shaft, so that the operator can rotate the entire flange 1 by means of the rotating handle 24.

[0037] Please see Figure 2 In this embodiment, to accommodate couplings 300 of different specifications, the flange 1 is also provided with multiple adjusting plates 4, each corresponding to a multiple limiting assembly 2. Taking any one of the adjusting plates 4 as an example, the adjusting plate 4 can be fixedly disposed on the outside of the flange 1 along the radial direction of the central hole 11, with one end fixedly connected to the flange 1 and the other end extending radially outward from the flange 1 along the central hole 11.

[0038] Based on this, each limiting component 2 can be slidably disposed on each adjusting plate 4 along the radial direction of the central hole 11, and each adjusting plate 4 is also provided with a locking component, which can lock the corresponding limiting component 2 in a specified position.

[0039] In one embodiment, the adjusting plate 4 and the flange 1 can be detachably fixed by bolts. In order to achieve a sliding connection between the adjusting plate 4 and the limiting component 2, an adjusting groove 411 extending radially along the central hole 11 is provided on the adjusting plate 4. The locking member can be a locking bolt 5, which can pass through the adjusting groove 411 and be threadedly connected to the centering block 21.

[0040] Specifically, the centering block 21 can be fitted to the adjusting plate 4 on the side of the adjusting plate 4 near the second coupling 320, while the locking bolt 5 can be provided in one, two or more places, which can be provided on the side of the adjusting plate 4 away from the centering block 21, and can pass through the adjusting groove 411 to connect the centering block 21.

[0041] Thus, when the locking bolt 5 is manually tightened, it can lock the centering block 21 in the corresponding position; and when the locking bolt 5 is loosened, the centering block 21 can slide along the adjusting groove 411. By moving each centering block 21, the diameter of the circumference formed by each limiting component 2 can be adjusted, thereby adapting to couplings 300 of different specifications.

[0042] In one embodiment, please refer to Figure 5 The adjustment plate 4 can be combined with the aforementioned fastener into a single component. The number of adjustment plates 4 is the same as that of the sub-plates 12, and each adjustment plate 4 is respectively set at the splicing point of each sub-plate 12.

[0043] Taking any one of the adjustment plates 4 as an example, the adjustment plate 4 includes a fixing part 42 and an adjusting part 41. The fixing part 42 can constitute the aforementioned fixing plate, which can be connected to the sub-plate 12 by bolts and can fix the two sub-plates 12 that are spliced ​​together. The adjusting part 41 can be set on the side of the fixing part 42 away from the center of the center hole 11, and the aforementioned adjusting groove 411 can be provided on it, and it can be used to connect the centering block 21.

[0044] In this way, the number of parts on flange 1 can be reduced, improving the ease of assembly and operation.

[0045] In one embodiment, please refer to Figure 1 The dial indicator assembly 3 described above can be fixedly mounted on one of the centering blocks 21. It includes a measuring bracket 31 and a dial indicator 32. The measuring bracket 31 can be fixedly mounted on the side of the centering block 21 near the second coupling 320, while the dial indicator 32 can be fixedly mounted on the measuring bracket 31.

[0046] In this way, the dial indicator assembly 3 can rotate with the flange 1 on the centering block 21, so that the dial indicator 32 is aligned with different positions on the outer circumference of the second coupling 320, thereby collecting data at different positions.

[0047] To better understand this utility model, the following is combined with... Figure 1-6 The technical solution of one embodiment of this utility model will be described in detail below: In practical applications, flange 1 can be disassembled and installed onto the first coupling 310. Then, the bolts between the adjusting plate 4 and the split plate body 12 are tightened to make flange 1 a single unit. Next, the locking bolts 5 can be loosened and the centering blocks 21 can be moved to adjust their positions so that the rolling bearings on each positioning block can correctly abut against the first coupling 310 to match the specifications of the corresponding coupling 300. Finally, dial indicator assembly 3 can be installed on the alignment device. Then, flange 1 can be manually rotated by turning handle 24, and data from multiple positions on coupling 300 can be collected using dial indicator 32 to adjust the alignment of the first coupling 310 and the second coupling 320.

[0048] Please see Figure 6 To facilitate a further understanding of the alignment principle of this alignment device, this embodiment also provides one alignment operation process, as follows: Rotate the alignment device one full turn, measuring and recording the dial indicator 32 reading every 90°, obtaining readings a, b, c, and d. A and c form one adjustment direction, and b and d form another, adjusting towards the direction with the larger dial indicator 32 reading. The adjustment amount for directions a and c is half of |ac|, and the adjustment amount for directions b and d is half of |bd|. The motor can be driven by adjusting the set screws in the four directions, combined with multiple rotations and measurements from the alignment device, until the alignment data meets the expectations.

[0049] Using the above method, the alignment device achieves high and stable overall rotational accuracy, requiring minimal manual operation; one person can complete the alignment inspection. The entire alignment device is simple to manufacture and has low production costs. Furthermore, the diameter of the alignment device can be adjusted within a certain range according to the 300mm diameter of the coupling, demonstrating good versatility.

[0050] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0051] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A coupling alignment device, the coupling comprising a first coupling and a second coupling for connecting two shafts respectively, characterized in that, The centering device includes: The tooling body has a central hole for the first coupling to pass through, and is configured to be coaxial with the first coupling. Multiple limiting components are distributed circumferentially around the central hole on the periphery of the tooling body for connecting to a first coupling, so that the tooling body can rotate about the first coupling; and A dial indicator assembly, detachably mounted on the tooling body or one of the limiting components, is configured to rotate with the tooling body and collect data at multiple positions on the second coupling.

2. The coupling alignment device according to claim 1, characterized in that, The main body of the tooling is a flange, which has a ring-shaped structure; the limiting component is detachably mounted on the flange.

3. The coupling alignment device according to claim 2, characterized in that, The flange includes multiple sub-discs arranged circumferentially around the central hole. The multiple sub-discs are detachably connected to each other and are assembled together to form the flange.

4. The coupling alignment device according to claim 3, characterized in that, The flange is provided with multiple fasteners, which are distributed circumferentially around the central hole and are respectively located at the splicing points of the multiple sub-discs to connect two sub-discs at corresponding positions.

5. The coupling alignment device according to claim 2, characterized in that, The limiting component includes: A centering block is disposed on one side of the flange along the radial direction of the central hole; A first connecting member is disposed on one side of the centering block for abutting against the side of the first coupling opposite to the second coupling; and / or The second connecting piece is located on the other side of the centering block and is used to abut against the outer circumference of the first coupling.

6. The coupling alignment device according to claim 5, characterized in that, The first connecting member and / or the second connecting member are rolling bearings, and the rolling bearings abut against the corresponding surfaces of the first coupling.

7. The coupling alignment device according to claim 5, characterized in that, A rotating handle is fixedly installed on one side of the centering block.

8. The coupling alignment device according to claim 5, characterized in that, Multiple adjusting plates are fixedly installed on the flange, and the multiple adjusting plates correspond to the multiple limiting components respectively; the centering block is slidably installed on the corresponding adjusting plate along the radial direction of the center hole, and the adjusting plate is also provided with a locking member for locking the centering block.

9. The coupling alignment device according to claim 8, characterized in that, The dial indicator assembly is detachably and fixedly mounted on the centering block, and can be radially adjusted along with the centering block.

10. The coupling alignment device according to claim 9, characterized in that, The dial indicator component includes: The measuring bracket is detachably and fixedly mounted on the side of the centering block near the second coupling; and A dial indicator is fixedly mounted on the measuring bracket and is used to collect data from multiple positions on the second coupling.

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