Transmission shaft concentricity adjusting dial indicator base

By designing a dial indicator base for adjusting the concentricity of the drive shaft, and utilizing a combination structure of adjusting screw, rotating ring, slider and slide groove, the problem of the dial indicator base being difficult to adapt to drive shafts of different specifications is solved, achieving simple installation and efficient use.

CN223895544UActive Publication Date: 2026-02-10CHINESE PEOPLES LIBERATION ARMY UNIT 63607
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Patent Information

Application Number
CN202520682086.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-02-10
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

The existing dial indicator base structure is fixed, making it difficult to adapt to different specifications of drive shafts, resulting in cumbersome and inefficient installation.

Method used

A base for a drive shaft concentricity adjustment dial indicator was designed. Through a combination of adjusting screw, rotating ring, slider and slide groove, the height of the insertion block can be flexibly adjusted to adapt to the inner slot of drive shafts of different specifications, simplifying the installation process.

Benefits of technology

It improves the versatility and installation efficiency of the base on various drive shafts, reduces the hassle of replacing the base, simplifies the operation process, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223895544U_ABST
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Abstract

The utility model discloses a transmission shaft concentricity adjusting dial indicator base which comprises a base body and a dial indicator body arranged on the upper right side of the base body and used for measurement, the lower side of the dial indicator body penetrates through the base body and is connected with a measuring rod, and a fixing bolt is arranged at the tail end of the right side of the base body. A pressing bolt is arranged in the middle of the left side of the base main body, and a fixing block is arranged on the lower side, protruding out of the base main body, of the pressing bolt, the height of an inserting block can be flexibly adjusted through the combination of an adjusting screw rod, a rotating ring, a sliding block and a sliding groove, and transmission shaft inner inserting grooves of different specifications can be adapted; the installation universality of the base on various transmission shafts is improved, the trouble of replacing different bases is reduced, the improved structure enables the installation process to be simpler and more convenient, the height of the insertion block can be adjusted by rotating the adjusting screw, complex operation is not needed, the installation time is shortened, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of transmission shaft concentricity adjustment, specifically relating to a base for a transmission shaft concentricity adjustment dial indicator. Background Technology

[0002] The dial indicator base for drive shaft concentricity adjustment is a key tool in the field of mechanical manufacturing and maintenance, primarily used to ensure the precise alignment and concentricity of drive shaft installation. In mechanical equipment, the concentricity of the drive shaft directly affects the smoothness of operation, service life, and efficiency of the equipment. Excessive concentricity deviation can lead to increased vibration and noise, and even equipment malfunction. The dial indicator base provides a stable measuring platform, allowing for precise detection and adjustment of radial and axial deviations of the drive shaft in conjunction with the dial indicator.

[0003] In existing technologies, dial indicator base structures are typically fixed, making it difficult to adapt to different specifications of drive shafts. When faced with varying heights and dimensions of the drive shaft's internal slots, frequent base replacements are often required during installation, a cumbersome and inefficient process that severely hinders work progress. Utility Model Content

[0004] The purpose of this invention is to provide a dial indicator base for adjusting the concentricity of a drive shaft, thereby solving the problem that the dial indicator base structure is usually fixed and difficult to adapt to drive shafts of different specifications in the background art. When faced with drive shafts with varying inner slot heights and dimensions, frequent base replacements are often required during installation, which is cumbersome, inefficient, and seriously hinders work progress.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a base for adjusting the concentricity of a drive shaft, comprising a base body and a dial indicator body disposed on the upper right side of the base body for measurement;

[0006] The measuring rod is connected to the lower side of the dial gauge body through the base body;

[0007] A fixing bolt is provided at the right end of the base body;

[0008] A clamping bolt is provided in the middle of the left side of the base body, and a fixing block is provided on the lower side of the base body protruding from the clamping bolt.

[0009] A detachable base is provided on the lower left side of the base body. Two sliders are provided on the right side of the detachable base and at the connection with the fixing block. A sliding groove is provided at the connection between the slider and the fixing block. An adjusting screw is provided on the upper middle side of the detachable base. A rotating ring is provided at the connection between the adjusting screw and the inner side of the detachable base.

[0010] An insert block is provided on the lower right side of the separation base, and a handle is provided on the outer rear middle of the main body of the base.

[0011] Preferably, the fixing bolt and the clamping bolt are connected to the base body by threaded connection, and the fixing bolt and the clamping bolt can rotate and move on the base body by thread.

[0012] Preferably, the measuring rod is connected to the dial indicator by welding, and the end of the fixing bolt contacts and presses against the measuring rod.

[0013] Preferably, the insert block is connected to the separate base by welding, the adjusting screw is connected to the base body by threads, and the adjusting screw can move up and down on the base body by threads.

[0014] Preferably, the rotating ring is connected by welding and adjusting screw, and the rotating ring is connected to the separation base by a nested connection. The adjusting screw can rotate within the separation base through the rotating ring.

[0015] Preferably, the slider is connected to the slide groove via a snap-fit ​​connection, and the separation base can move up and down within the slide groove via two sliders.

[0016] Compared with the prior art, this utility model provides a dial indicator base for adjusting the concentricity of a drive shaft, which has the following advantages:

[0017] By adjusting the combination of screw, swivel, slider and slide groove, the height of the insert can be flexibly adjusted, which can be adapted to the slots of different specifications of drive shafts, improving the versatility of the base for installation on a variety of drive shafts and reducing the trouble of changing different bases.

[0018] Furthermore, the improved structure simplifies the installation process; simply turning the adjusting screw adjusts the height of the insert, eliminating the need for complex operations, thus shortening installation time and improving work efficiency.

[0019] In addition, the handle design makes it easy for operators to move and adjust the position of the base, and the detachable base can move within the slide, providing more operational flexibility for the installation and adjustment process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the base in this utility model.

[0021] Figure 2 This is a schematic diagram of the bottom side view of this utility model.

[0022] Figure 3 In this utility model Figure 1 A structural diagram from a side view.

[0023] Figure 4 In this utility model Figure 3 A magnified structural diagram of the central circular region.

[0024] Figure 5 This is a schematic diagram of the adjusting screw ring in this utility model.

[0025] In the diagram: 1. Base body; 2. Fixing block; 3. Insertion block; 4. Separating base; 5. Clamping bolt; 6. Dial indicator body; 7. Fixing bolt; 8. Measuring rod; 9. Adjusting screw; 10. Handle; 11. Rotary ring; 12. Slide groove; 13. Sliding block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides, for example Figure 1-5 The diagram shows a dial indicator base for adjusting the concentricity of a drive shaft, comprising a base body 1 and a dial indicator body 6 disposed on the upper right side of the base body 1 for measurement.

[0028] The measuring rod 8 is connected to the lower side of the dial indicator body 6 through the base body 1;

[0029] A fixing bolt 7 is provided at the right end of the base body 1;

[0030] A clamping bolt 5 is provided in the middle of the left side of the base body 1, and a fixing block 2 is provided on the lower side of the base body 1 protruding from the clamping bolt 5.

[0031] A detachable base 4 is provided on the lower left side of the base body 1. Two sliders 13 are provided at the connection between the right side of the detachable base 4 and the fixing block 2. A sliding groove 12 is provided at the connection between the slider 13 and the fixing block 2. An adjusting screw 9 is provided on the upper middle side of the detachable base 4. A rotating ring 11 is provided at the connection between the adjusting screw 9 and the inner side of the detachable base 4.

[0032] A plug 3 is provided on the lower right side of the detachable base 4, and a handle 10 is provided on the outer side of the middle rear side of the base body 1.

[0033] Optionally, users can also hold the handle 10 to more easily grip the base body 1 for installation.

[0034] In this embodiment, during installation, the user can first rotate the adjusting screw 9, and through the rotating ring 11, drive the separation base 4 to move in the slide groove 12 using the slide rod, adjust the height of the insert 3, insert the insert 3 into the slot inside the drive shaft, and at the same time, further fix the position of the base body 1 on the shaft by tightening the bolt 5, so that the entire base is stably installed on the drive shaft.

[0035] Next, install the dial indicator body 6 on the upper right side of the base body 1, allowing the measuring rod 8 to pass through the base body 1, and use the fixing bolt 7 to press the measuring rod 8 for fixation.

[0036] After installation, rotating the drive shaft will cause the measuring rod 8 of the dial indicator body 6 to shift accordingly based on the concentricity of the shaft, and the dial indicator body 6 will display the data. Based on this data, the concentricity of the shaft with another shaft can be adjusted until the required accuracy is achieved. The operator judges the concentricity of the shaft based on the reading and then makes adjustments accordingly.

[0037] like Figure 1-5 As shown, the fixing bolt 7 and the clamping bolt 5 are connected to the base body 1 by threaded connection, and the fixing bolt 7 and the clamping bolt 5 can rotate and move on the base body 1 by thread. The measuring rod 8 is connected to the dial indicator by welding. The end of the fixing bolt 7 contacts and presses against the measuring rod 8. The insert block 3 is connected to the separation base 4 by welding. The adjusting screw 9 is connected to the base body 1 by thread, and the adjusting screw 9 can move up and down on the base body 1 by thread. The rotating ring 11 is connected to the adjusting screw 9 by welding. The rotating ring 11 is connected to the separation base 4 by nesting connection. The adjusting screw 9 can rotate in the separation base 4 by rotating ring 11. The slider 13 is connected to the slide groove 12 by snap-fit ​​connection. The separation base 4 can move up and down in the slide groove 12 by two sliders 13.

[0038] Preferably, the threaded engagement between the adjusting screw 9 and the base body 1, and the connection between the rotating ring 11 and the separating base 4 and the adjusting screw 9, allow the separating base 4 to move up and down along the slide groove 12 when the adjusting screw 9 is rotated, thereby changing the height of the insert block 3 to adapt to the height of the slots in different drive shafts, ensuring that the base can be stably installed on the shaft.

[0039] The clamping bolt 5 presses down on the fixing block 2, increasing the friction between the fixing block 2 and the shaft surface, thus fixing the base body 1 on the shaft; the fixing bolt 7 presses against the measuring rod 8, using friction to fix the dial indicator, preventing it from shifting during measurement and ensuring the accuracy of the measurement data.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A base for adjusting the concentricity of a drive shaft, comprising a base body (1) and a dial indicator body (6) disposed on the upper right side of the base body (1) for measurement; The dial gauge body (6) has a measuring rod (8) connected to the base body (1) on its lower side; A fixing bolt (7) is provided at the right end of the base body (1); A clamping bolt (5) is provided in the middle of the left side of the base body (1), and a fixing block (2) is provided on the lower side of the clamping bolt (5). Its features are: A detachable base (4) is provided on the lower left side of the base body (1). Two sliders (13) are provided on the right side of the detachable base (4) and at the connection with the fixing block (2). A groove (12) is provided at the connection between the slider (13) and the fixing block (2). An adjusting screw (9) is provided on the upper middle side of the detachable base (4). A rotating ring (11) is provided at the connection between the adjusting screw (9) and the inner side of the detachable base (4). A plug (3) is provided on the lower right side of the separation base (4), and a handle (10) is provided on the outer side of the middle rear side of the base body (1).

2. The dial indicator base for adjusting the concentricity of a transmission shaft according to claim 1, characterized in that: The fixing bolt (7) and the clamping bolt (5) are connected to the base body (1) by threaded connection, and the fixing bolt (7) and the clamping bolt (5) can rotate and move on the base body (1) by thread.

3. A dial indicator base for adjusting the concentricity of a transmission shaft according to claim 2, characterized in that: The measuring rod (8) is connected to the dial indicator by welding, and the end of the fixing bolt (7) contacts and presses against the measuring rod (8).

4. A dial indicator base for adjusting the concentricity of a transmission shaft according to claim 3, characterized in that: The insert (3) is connected to the separation base (4) by welding, and the adjusting screw (9) is connected to the base body (1) by threads, and the adjusting screw (9) can move up and down on the base body (1) by threads.

5. A dial indicator base for adjusting the concentricity of a transmission shaft according to claim 4, characterized in that: The rotating ring (11) is connected by welding and adjusting screw (9). The rotating ring (11) is connected to the separation base (4) by a nested connection. The adjusting screw (9) can rotate within the separation base (4) through the rotating ring (11).

6. A dial indicator base for adjusting the concentricity of a transmission shaft according to claim 5, characterized in that: The slider (13) is connected to the slide groove (12) by a snap-fit ​​connection, and the separation base (4) can move up and down in the slide groove (12) by the two sliders (13).