Centering detection tool for pump shaft

Abstract

The utility model relates to a centering detection tool for a pump shaft, which comprises a detection end and a connection end, and the connection end is used for being fixed with a first coupler. The detection end is used for detecting the coaxiality of the first coupler and the second coupler and comprises a first detection instrument and a second detection instrument which are vertically arranged, the first detection instrument abuts against the axial end face of the second coupler, and the second detection instrument abuts against the circular curved surface of the shaft of the second coupler; wherein one of the first coupler and the second coupler is a motor coupler, and the other one is a pump coupler. According to the scheme, the first detection instrument and the second detection instrument are used for detecting the coaxiality of the second coupling in the axial direction and the radial direction at the same time, and when the coaxiality of the second coupling in the two directions is detected, the detection tool does not need to be disassembled, and the coaxiality detection result of the first coupling and the second coupling is obtained at a time; the detection efficiency is high, and the problems of low measurement precision and large error caused by repeated disassembly and assembly are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of motor pump detection, in particular to a centering detection tool for a pump shaft. Background Art

[0002] When a water pump and a motor are assembled, the coaxiality is divided into two directions: axial and radial. Currently, it is necessary to perform two separate detections on the axial coaxiality and the radial coaxiality respectively. Therefore, the following problems exist in the existing detection process: During the two detections of the coaxiality, it is necessary to disassemble and assemble the instrument twice, which is time-consuming and laborious; it is very difficult to ensure that the detection positions of the two detections are on the same vertical line, resulting in low measurement accuracy and large errors; using a magnetic base or bolts to fix the detection tool, the installation position is limited and not firm; the adjustable slider is of a split type, resulting in large measurement errors; the instrument mounting bracket is of a split type, resulting in large measurement errors. Summary of the Utility Model

[0003] Based on this, a centering detection tool for a pump shaft is provided to solve the problem in the prior art that when detecting the coaxiality, it is necessary to perform two detections on the radial and axial coaxialities respectively, resulting in low detection efficiency.

[0004] On the one hand, the utility model provides a centering detection tool for a pump shaft, including:

[0005] A connection end, which is used to be fixed to the first coupling;

[0006] A detection end, which is used to detect the coaxiality of the first coupling and the second coupling. The connection end includes a first detection instrument and a second detection instrument arranged vertically. The first detection instrument abuts against the axial end face of the second coupling, and the second detection instrument abuts against the circular curved surface of the shaft of the second coupling;

[0007] Wherein, in the first coupling and the second coupling, one is a motor coupling and the other is a pump coupling; the connection end is connected to the detection end.

[0008] Based on the above technical solution, the utility model can be further improved as follows.

[0009] In one implementation, the detection end further includes:

[0010] An instrument bracket, which is used to fix the first detection instrument and the second detection instrument.

[0011] In one implementation, the instrument bracket is in an L shape. One end of the L shape is used to fix the first detection instrument, and the other end of the L shape is used to fix the second detection instrument.

[0012] In one implementation, the instrument bracket includes:

[0013] The first connection hole, which is for the first detection instrument to pass through;

[0014] The second connection hole, which is for the second detection instrument to pass through;

[0015] The first threaded hole, which is opened along the radial direction of the first connection hole and is connected to the first connection hole;

[0016] The second threaded hole, which is opened along the radial direction of the second connection hole and is connected to the second connection hole.

[0017] In one implementation, the connection end includes:

[0018] The first fixing rod, one end of which is used to be fixed to the first coupling.

[0019] In one implementation, the connection end further includes:

[0020] The adjusting member, on which the first fixing rod is fixed;

[0021] The second fixing rod, which passes through the adjusting member and one end of which is fixed to the detection end, and the second fixing rod is perpendicularly arranged with the first fixing rod.

[0022] In one implementation, the adjusting member includes:

[0023] The third connection hole, which is for the first fixing rod to pass through;

[0024] The third threaded hole, which is opened along the radial direction of the third connection hole and is connected to the third connection hole.

[0025] In one implementation, the adjusting member further includes:

[0026] The fourth connection hole, which is for the second fixing rod to pass through;

[0027] The fourth threaded hole, which is opened along the radial direction of the fourth connection hole and is connected to the fourth connection hole.

[0028] In one implementation, one end of the second fixing rod is provided with an external thread and this end is used to be connected to the detection end, and the other end of the second fixing rod is provided with an inwardly concave hexagonal hole.

[0029] In one implementation, one end of the first fixing rod is provided with an external thread, and the other end of the first fixing rod is also provided with an inwardly concave hexagonal hole.

[0030] The beneficial effects of the utility model are as follows: by adopting the scheme of the present application, a connected connecting end and a detecting end are provided, so that by adjusting the connecting end, the position of the detecting end can be synchronously adjusted, and by fixing the position of the detecting end in place, the connecting end is then fixed to the first coupling; since the detecting end includes a first detecting instrument and a second detecting instrument vertically arranged, the first detecting instrument abuts against the axial end face of the second coupling, and the second detecting instrument abuts against the circular curved surface of the circumferential direction of the shaft of the second coupling, the first detecting instrument and the second detecting instrument can be used to simultaneously detect the coaxiality of the second coupling in both the axial and radial directions, and when detecting the coaxiality of the second coupling in both the axial and radial directions, different from the prior art which can only detect the coaxiality in one direction at a time, the present scheme does not require disassembly of the detecting tool, and after the detecting tool is installed, the coaxiality detection results of the first coupling and the second coupling can be obtained at one time, with high detection efficiency, avoiding the problems of low measurement accuracy and large errors caused by repeated disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a pump shaft alignment detection tool in one embodiment;

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 11 first detection instrument; 12 second detection instrument; 13 instrument bracket;

[0034] 21 first fixing rod; 21-1 hexagonal hole;

[0035] 22 adjusting member; 23 second fixing rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution 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. 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.

[0037] A pump shaft alignment detection tool, see Figure 1 , including a detection end and a connecting end, the connecting end is used to be fixed with the first coupling; the detection end is used to detect the coaxiality of the first coupling and the second coupling, the detection end includes a first detection instrument 11 and a second detection instrument 12 which are vertically arranged, the first detection instrument 11 abuts against the axial end face of the second coupling, and the second detection instrument 12 abuts against the circular curved surface of the second coupling shaft; wherein, in the first coupling and the second coupling, one is a motor coupling and the other is a pump coupling; the connecting end is connected to the detection end.

[0038] In this embodiment, adopting the solution of the present application, there are a connected connection end and a detection end. Therefore, by adjusting the connection end, the position of the detection end can be synchronously adjusted. After fixing the position of the detection end in place, the connection end is fixed to the first coupling. Since the detection end includes a first detection instrument 11 and a second detection instrument 12 arranged vertically, the first detection instrument 11 abuts against the end face of the second coupling in the axial direction, and the second detection instrument 12 abuts against the circular curved surface of the second coupling in the circumferential direction of the axis. Therefore, the coaxiality in both the axial and radial directions of the second coupling can be detected simultaneously by using the first detection instrument 11 and the second detection instrument 12. When detecting the coaxiality in both the axial and radial directions of the second coupling, different from the prior art where only the coaxiality in one direction can be detected at a time, this solution does not require disassembling the detection tool. After installing the detection tool, the coaxiality detection results of the first coupling and the second coupling can be obtained at one time, with high detection efficiency, and it avoids the problems of low measurement accuracy and large error caused by repeated disassembly and assembly.

[0039] On the basis of the above embodiment, the connection end can be fixed on the pump coupling, and the detection end can be abutted against the motor coupling. The connection end is fixed radially on the pump coupling.

[0040] In some embodiments, referring to Figure 1 , the detection end further includes an instrument support 13, and the instrument support 13 is used to fix the first detection instrument 11 and the second detection instrument 12. In this way, by fixing the first detection instrument 11 and the second detection instrument 12 simultaneously through the instrument support 13, the setting of multiple connecting workpieces is avoided, the number of parts of the detection end is reduced, the structural complexity of the detection end is simplified, and the installation of the first detection instrument 11 and the second detection instrument 12 is facilitated.

[0041] In some embodiments, referring to Figure 1 , the instrument support 13 is in an L shape. One end of the L shape is used to fix the first detection instrument 11, and the other end of the L shape is used to fix the second detection instrument 12. In this way, the instrument support 13 is set in an L shape. Since the two sections of the L shape are perpendicular to each other, by fixing the first detection instrument 11 and the second detection instrument 12 in the two sections of the L shape respectively, the first detection instrument 11 and the second detection instrument 12 are arranged perpendicular to each other, so as to obtain the structural setting required for simultaneous detection of the radial and axial directions of the second coupling.

[0042] In some embodiments, referring to Figure 1, the instrument support 13 includes a first connection hole, a second connection hole, a first threaded hole, and a second threaded hole. The first connection hole is for the first detection instrument 11 to pass through, and the second connection hole is for the second detection instrument 12 to pass through. The first threaded hole is opened along the radial direction of the first connection hole and is connected to the first connection hole, and the second threaded hole is opened along the radial direction of the second connection hole and is connected to the second connection hole. In this way, the first detection instrument 11 passes through the first connection hole and can move, facilitating the adjustment of the axial position of the first detection instrument 11. By setting the first threaded hole, a set screw of the corresponding specification can be inserted, and the first detection instrument 11 is tightened by the set screw, thereby fixing the position of the first detection instrument 11 in the first connection hole, that is, fixing the position of the first detection instrument 11 on the instrument support 13; the second detection instrument 12 passes through the second connection hole and can move, facilitating the adjustment of the axial position of the second detection instrument 12. By setting the second threaded hole, a set screw of the corresponding specification can be inserted, and the second detection instrument 12 is tightened by the set screw, thereby fixing the position of the second detection instrument 12 in the second connection hole, that is, fixing the position of the second detection instrument 12 on the instrument support 13.

[0043] In some embodiments, referring to Figure 1 , the connection end includes a first fixing rod 21, and one end of the first fixing rod 21 is used to be fixed to the first coupling. In this way, the corresponding first fixing rod 21 is provided, and the connection end is fixed to the first coupling through the first fixing rod 21, that is, the relative position of the entire alignment detection tool and the first coupling is fixed.

[0044] In some embodiments, referring to Figure 1 , the connection end further includes an adjusting member 22 and a second fixing rod 23. The first fixing rod 21 is fixed on the adjusting member 22. The second fixing rod 23 passes through the adjusting member 22 and one end of it is fixed on the detection end. The second fixing rod 23 is perpendicularly arranged with the first fixing rod 21. In this way, the adjusting member 22 is provided, and the first fixing rod 21 and the second fixing rod 23 are connected through the adjusting member 22. Since the second fixing rod 23 is connected to the adjusting member 22 and the detection end at the same time, the first fixing rod 21 is connected to the detection end, so that the effect of adjusting the position of the entire alignment detection tool can be achieved by adjusting the first fixing rod 21.

[0045] In some embodiments, referring to Figure 1 , the adjusting member 22 includes a third connection hole and a third threaded hole. The third connection hole is for the first fixing rod 21 to pass through. The third threaded hole is opened along the radial direction of the third connection hole and is connected to the third connection hole. In this way, the first fixing rod 21 passes through the third connection hole and can move, facilitating the adjustment of the position of the first fixing rod 21 in the third connection hole. By setting the third threaded hole, a set screw of the corresponding specification can be inserted, and the first fixing rod 21 is tightened by the set screw, thereby fixing the position of the first fixing rod 21 in the third connection hole, that is, fixing the position of the first fixing rod 21 on the adjusting member 22.

[0046] In some embodiments, referring to Figure 1 , the adjusting member 22 further includes a fourth connection hole and a fourth threaded hole. The fourth connection hole is for the second fixing rod 23 to pass through, and the fourth threaded hole is opened along the radial direction of the fourth connection hole and is connected to the fourth connection hole. In this way, the second fixing rod 23 passes through the fourth connection hole and is movable, facilitating the adjustment of the position of the second fixing rod 23 within the fourth connection hole. By providing the third threaded hole, a set screw of a corresponding specification can be inserted, and the set screw is used to press against the second fixing rod 23, thereby fixing the position of the second fixing rod 23 within the fourth connection hole, that is, fixing the position of the second fixing rod 23 on the adjusting member 22.

[0047] In some embodiments, referring to Figure 1 , one end of the second fixing rod 23 is provided with an external thread and this end is used to connect to the detection end, and the other end of the second fixing rod 23 is provided with an inwardly concave hexagonal hole 21-1. In this way, one end of the second fixing rod 23 is provided with an external thread and is connected to the detection end by using the external thread structure, and the other end of the second fixing rod 23 is provided with an inwardly concave hexagonal hole 21-1 and a corresponding tool is inserted through the hexagonal hole 21-1 to rotate and adjust the second fixing rod 23, thereby facilitating the disassembly and assembly of the second fixing rod 23.

[0048] Specifically, one end of the second fixing rod 23 is provided with an external thread and is connected to the instrument bracket 13.

[0049] In some embodiments, referring to Figure 1 , one end of the first fixing rod 21 is provided with an external thread, and the other end of the first fixing rod 21 is also provided with an inwardly concave hexagonal hole 21-1. In this way, one end of the first fixing rod 21 is provided with an external thread and is connected to the first coupling by means of a threaded structure, and the other end of the first fixing rod 21 is provided with an inwardly concave hexagonal hole 21-1 and a corresponding tool is inserted through the hexagonal hole 21-1 to rotate and adjust the first fixing rod 21, thereby facilitating the disassembly and assembly of the first fixing rod 21.

[0050] With the present application, the number of workpieces is small, the assembly is convenient, and it is easy to carry. The centering detection tool of the present application includes a first detection instrument 11, a second detection instrument 12, an instrument support 13, a first fixing rod 21, an adjusting member 22, and a second fixing rod 23. When assembling this centering detection tool, multiple setscrews or rod-shaped structures with external threads are required to assist in pressing tightly. In addition, it is preferably to have a corresponding tool that matches the internal hexagonal hole 21-1 to assist in the rotational clamping of the round rod-shaped first fixing rod 21 and the second fixing rod 23. During installation, the following steps are included: S1. Install and fix the first fixing rod 21 on the pump coupling; S2. Fix the first fixing rod 21 on the adjusting member 22 and clamp it tightly with a setscrew, and also fix the second fixing rod 23 on the adjusting member 22 and clamp it tightly with a setscrew. Among them, the first fixing rod 21 and the second fixing rod 23 are arranged perpendicular to each other; S3. One end of the second fixing rod 23 passing through the adjusting member 22 is provided with an external thread, and it is fixed on the instrument support 13 through this external thread structure. Adjust the position of the second fixing rod 23 on the adjusting member 22 or on the instrument support 13 so that the two detection instruments can abut against the axial end face or the circumferential arc surface of the motor coupling. The second fixing rod 23 can also be pressed tightly in its threaded hole with the instrument support 13 by a setscrew;

[0051] S4. Adjust the first detection instrument 11 so that the first detection instrument 11 abuts against the axial end face of the second coupling, so that the tip end of the ejector pin of the first detection instrument 11 has a certain amount of compression, and fix the first detection instrument 11 on the instrument support 13 by a setscrew; Adjust the second detection instrument 12 so that the second detection instrument 12 abuts against the circular curved surface on the outer circumference of the second coupling, so that the tip end of the ejector pin of the second detection instrument 12 has a certain amount of compression, and fix the second detection instrument 12 on the instrument support 13 by a setscrew;

[0052] S5. Zero the readings on the first detection instrument 11 and the second detection instrument 12, and then rotate the motor coupling one full turn to determine whether the readings on the first detection instrument 11 and the second detection instrument 12 exceed the threshold value during the rotation. If not, the coaxiality of the first coupling and the second coupling meets the standard; if it exceeds, the coaxiality of the first coupling and the second coupling does not meet the standard, and the relative positions of the first coupling and the second coupling need to be adjusted.

[0053] In summary, for the centering detection tool of the present application, the coaxiality in the axial and radial directions can be measured with just one installation. The installation is convenient, and the measurement efficiency of the coaxiality is high. The first fixing rod 21 is fixed radially on the pump coupling.

[0054] Specifically, the adjusting member 22 can be made of stainless steel, with high processing precision, which can improve the measurement accuracy of the detection instrument and reduce errors. The instrument support 13 is entirely made of stainless steel. The first connection hole and the second connection hole on the instrument support 13 are perpendicular to each other, thus ensuring the perpendicular arrangement of the two detection instruments. With high processing precision, it can improve the measurement accuracy of the detection instrument and reduce errors.

[0055] It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0056] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover.

[0057] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0058] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0059] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "attachment", "fixation" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0060] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] The above-described embodiments merely represent several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A pump shaft alignment detection tool, characterized in that: include: A connecting end, the connecting end being used to be fixed to the first coupling; A detection end, the detection end is used to detect the coaxiality of the first coupling and the second coupling, the detection end comprises a first detection instrument (11) and a second detection instrument (12) which are arranged vertically, the first detection instrument (11) abuts against the axial end face of the second coupling, and the second detection instrument (12) abuts against the circular curved surface of the second coupling shaft; Among them, among the first coupling and the second coupling, one is a motor coupling and the other is a pump coupling; the connecting end is connected to the detection end.

2. The pump shaft alignment detection tool according to claim 1, characterized in that: The detection end also includes: An instrument bracket (13), wherein the instrument bracket (13) is used to fix the first detection instrument (11) and the second detection instrument (12).

3. The pump shaft alignment detection tool according to claim 2, characterized in that: The instrument bracket (13) is L-shaped, one end of the L-shape is used to fix the first detection instrument (11), and the other end of the L-shape is used to fix the second detection instrument (12).

4. The pump shaft alignment detection tool according to claim 2, characterized in that: The instrument bracket (13) comprises: a first connecting hole, the first connecting hole being used for a first detection instrument (11) to pass through; a second connecting hole, the second connecting hole being used for passing a second detection instrument (12); a first threaded hole, the first threaded hole being opened along a radial direction of the first connecting hole and connected to the first connecting hole; A second threaded hole, wherein the second threaded hole is opened along a radial direction of the second connecting hole and is connected to the second connecting hole.

5. The pump shaft alignment detection tool according to any one of claims 1 to 4, characterized in that: The connection end comprises: A first fixing rod (21), one end of the first fixing rod (21) being used for fixing to the first coupling.

6. The pump shaft alignment detection tool according to claim 5, characterized in that: The connection end also includes: An adjusting member (22), wherein the first fixing rod (21) is fixed on the adjusting member (22); A second fixing rod (23), the second fixing rod (23) passes through the adjusting member (22) and one end of the second fixing rod (23) is fixed on the detection end, and the second fixing rod (23) is arranged perpendicular to the first fixing rod (21).

7. The pump shaft alignment detection tool according to claim 6, characterized in that: The adjusting member (22) comprises: a third connecting hole, the third connecting hole being used for the first fixing rod (21) to pass through; A third threaded hole is opened along the radial direction of the third connecting hole and is connected to the third connecting hole.

8. The pump shaft alignment detection tool according to claim 7, characterized in that: The adjusting member (22) further comprises: a fourth connecting hole, the fourth connecting hole being used for the second fixing rod (23) to pass through; A fourth threaded hole is opened along the radial direction of the fourth connecting hole and is connected to the fourth connecting hole.

9. The pump shaft alignment detection tool according to any one of claims 6 to 8, characterized in that: One end of the second fixing rod (23) is provided with an external thread and is used to be connected to the detection end, and the other end of the second fixing rod (23) is provided with a concave hexagonal hole (21-1).

10. The pump shaft alignment detection tool according to claim 5, characterized in that: One end of the first fixing rod (21) is provided with an external thread, and the other end of the first fixing rod (21) is also provided with a concave hexagonal hole (21-1).

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