Dial indicator clamp device for centering large-scale motor encoder

Abstract

The dial indicator clamp device comprises a main plate, a handle rod and a locking buckle, the main plate comprises an arc-shaped part and an outward extending part, the arc-shaped part is provided with an outer arc side and an inner arc side, the outward extending part is connected to the outer arc side of the arc-shaped part, the arc-shaped part is provided with a through hole, the axial direction of the through hole is the thickness direction of the arc-shaped part, and the axial direction of the through hole is the thickness direction of the arc-shaped part. The handle rod is fixedly connected with the outward extending part, the locking buckle is installed on the handle rod and used for clamping the dial indicator, under the condition that the encoder is connected with the bearing stand through the middle flexible connector, the bearing stand is provided with a flange plate connected with the middle flexible connector, and the flange plate comprises a plate part and a neck part connected to the thickness side of the plate part; the diameter of the limiting inner arc side is equal to the outer diameter of the neck part. During installation, the mainboard is directly sleeved at the neck position of the flange plate of the bearing stand, and the through hole of the mainboard is matched with the bolt hole of the flange plate to install the bolt, so that the defect that the encoder body cannot firmly adsorb the magnetic gauge stand and has measurement errors is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of encoder installation, in particular to a dial indicator clamp device used for centering a large motor encoder. Background Art

[0002] The encoder is an important measuring element of electrical transmission. The centering and alignment accuracy of the encoder of large motors is very important. Its accuracy not only affects the measurement value of the encoder, but also has a direct impact on the service life of the motor encoder.

[0003] Regarding the alignment of encoders and bearing tables of large motors, the industry currently generally uses the traditional method of mounting a dial indicator on a magnetic base. However, due to the structural problems of the encoders of large motors, the traditional magnetic base cannot find a suitable adsorption point on the encoder body, affecting the alignment detection accuracy between the encoder and its bearing table. Utility Model Content

[0004] Based on the above problems, the present application provides a dial indicator fixture device for centering a large motor encoder.

[0005] The present application provides a dial indicator clamp device for centering a large motor encoder, comprising a main board, a handle rod and a locking buckle, the main board comprising an arc portion and an overhanging portion, the arc portion having an outer arc side and an inner arc side, the overhanging portion being connected to the outer arc side of the arc portion, the arc portion being provided with a through hole, the axial direction of the through hole being the thickness direction of the arc portion, the handle rod being fixedly connected to the overhanging portion, the locking buckle being installed on the handle rod, the locking buckle being used to clamp the dial indicator, wherein, under the condition that the encoder is connected to the bearing stand through an intermediate flexible coupling, the bearing stand is provided with a flange connected to the intermediate flexible coupling, the flange comprising a disc portion and a neck connected to one side of the thickness of the disc portion, and the diameter of the inner arc side is limited to be equal to the outer diameter of the neck.

[0006] In some embodiments, the central angle of the arc portion is controlled to be between 90° and 150°.

[0007] In some embodiments, the overhanging portion is disposed at one end of the outer side of the arc-shaped portion.

[0008] In some embodiments, the length direction of the handle rod is arranged in the same direction as the axial direction of the arc-shaped portion.

[0009] In some embodiments, a threaded hole is formed in the extension portion, and the handle is threadedly connected to the extension portion at the threaded hole.

[0010] In some embodiments, the arc-shaped portion is provided with through holes of at least two diameter specifications.

[0011] In some embodiments, the arc-shaped portion is provided with three perforations, which are spaced apart in sequence along the arc direction of the arc-shaped portion, and the diameters of the three perforations are 6 mm, 8 mm, and 10 mm, respectively.

[0012] In some embodiments, the main board is made of steel.

[0013] In some embodiments, the main structure of the handle is cylindrical.

[0014] In some embodiments, the radius of the inner arc side is 18 mm, and the radius of the outer arc side is 32 mm.

[0015] The beneficial effects of the present application are as follows: a dial indicator fixture device for centering a large motor encoder is provided, in which the encoder is connected to the bearing platform through an intermediate flexible connector, and the dial indicator fixture device of the present application includes a main board, a handle and a locking buckle, the main board includes an arc portion and an overhanging portion, the diameter of the inner arc side of the main board is equal to the outer diameter of the neck, and the main board is directly sleeved on the neck position of the bearing platform flange during installation, the through holes of the main board cooperate with the bolt holes of the flange to install the bolts, so that the device is fixed to the bearing platform by bolts, and a locking buckle is installed on the handle connected to the main board, and the dial indicator is clamped by the locking buckle, and the encoder is detected by the dial indicator, so that the encoder is smoothly centered and aligned, which solves the defect that the encoder body cannot firmly adsorb the magnetic table seat and there is a measurement error, and improves the centering and alignment accuracy and work efficiency of large motor encoders. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model.

[0017] Figure 1 This is a schematic diagram of the encoder being connected to the bearing stand via an intermediate flexible connector;

[0018] Figure 2 A schematic structural diagram of a dial indicator fixture device for centering a large motor encoder provided in the present application;

[0019] Figure 3 A top view of the main board in the dial indicator fixture device provided in this application;

[0020] Figure 4 A side view of the dial indicator fixture device provided for this application.

[0021] Figure markings: 100-main board, 110-arc-shaped portion, 111-outer arc side, 112-inner arc side, 113-through hole, 120-extending portion, 121-threaded hole, 200-handle, 300-locking buckle, 20-encoder, 21-middle flexible connector, 22-bearing platform, 22a-flange, 22aa-disk, 22ab-neck. DETAILED DESCRIPTION

[0022] Please refer to Figure 1 In a large motor, the encoder 20 is connected to the bearing platform 22 through an intermediate flexible connector 21. The connection between the encoder 20 and the intermediate flexible connector 21, and the connection between the intermediate flexible connector 21 and the bearing platform 22, are similar to flange connection. Accordingly, the bearing platform 22 is provided with a flange 22a connected to the intermediate flexible connector 21, please refer to Figure 1 The flange 22a includes a disk portion 22aa and a neck portion 22ab, and the neck portion 22ab is connected to one side of the thickness of the disk portion 22aa.

[0023] In order to solve the problem that the encoder 20 body cannot firmly adsorb the magnetic base and cause measurement errors, please refer to Figure 2 The present embodiment provides a dial indicator fixture device for centering a large motor encoder, hereinafter referred to as the device, which includes a main board 100, a handle rod 200 and a locking buckle 300.

[0024] Please refer to Figure 2 and Figure 3 The main board 100 includes an arc portion 110 and an extension portion 120. The arc portion 110 has an outer arc side 111 and an inner arc side 112. The extension portion 120 is connected to the outer arc side 111 of the arc portion 110. A through hole 113 is provided in the arc portion 110. The axial direction of the through hole 113 is defined as the thickness direction of the arc portion 110. When the device is installed on the flange 22a of the bearing stand 22, the through hole 113 is in the same direction and directly opposite to a bolt hole of the flange 22a of the bearing stand 22.

[0025] Please refer to 2 to Figure 4 , the handle 200 is fixedly connected to the extension 120, and the locking buckle 300 is installed on the handle 200, and the dial indicator is clamped by the locking buckle 300. It should be noted that the locking buckle 300 has a locked state and an active state. When in the active state, the position of the locking buckle 300 on the handle 200 can be adjusted. In some embodiments, the locking buckle 300 is as follows: Figure 2 As shown in the figure, the locking buckle 300 locks or releases the connecting rod and the locking buckle 300 and the locking buckle 300 and the dial indicator head at the same time through a knob, so as to simplify the operation steps.

[0026] In this solution, the diameter of the inner arc side 112 of the main board 100 is specifically limited to be equal to the outer diameter of the neck 22ab of the flange 22a of the bearing stand 22. Figures 1 to 3 Therefore, during the specific installation, the mainboard 100 is directly mounted on the neck 22ab of the flange 22a of the bearing stand 22, the inner arc side 112 of the mainboard 100 is in close contact with the neck 22ab, and then the through hole 113 of the mainboard 100 is aligned with a bolt hole of the flange 22a, and the device is fixed to the flange 22a of the bearing stand 22 by installing bolts, and the encoder 20 is detected by the dial indicator clamped by the locking buckle 300. Since the bearing stand 22 has been aligned in advance, the dial indicator is based on the bearing stand 22, and the centering and alignment of the encoder 20 is successfully realized.

[0027] In summary, the dial indicator clamp device of the present application solves the defect that the encoder 20 body cannot firmly adsorb the magnetic base and there is a measurement error, and improves the centering accuracy and working efficiency of the large motor encoder 20.

[0028] Considering the different sizes of bolt holes of the flange 22a, in some embodiments, the arc portion 110 is provided with at least two diameter sizes of through holes 113. Figure 2 As shown, three solutions of through-holes 113 with different diameters are shown.

[0029] In some embodiments, the arc-shaped portion 110 is provided with three through-holes 113 , which are spaced apart in sequence along the arc direction of the arc-shaped portion 110 , and the diameters of the three through-holes 113 are 6 mm, 8 mm, and 10 mm, respectively.

[0030] In some embodiments, the main board 100 is made of steel material, and the steel material may be 4.5 mm thick, to ensure the structural strength of the fixture and prevent it from deforming and affecting the measurement and alignment accuracy.

[0031] In some embodiments, a threaded hole 121 is provided in the extension portion 120. The approximate position of the threaded hole 121 is as follows: Figure 3 As shown, a small section of threaded protrusion is provided at one end of the handle rod 200 , which is threadedly connected with the threaded hole 121 to achieve a fixed connection between the handle rod 200 and the extension part 120 .

[0032] In some embodiments, Figure 2 As shown, the main structure of the handle rod 200 is cylindrical.

[0033] In some embodiments, the central angle of the arc portion 110 is controlled to be between 90° and 150°. It is understandable that the central angle of the arc portion 110 needs to be controlled below 180° to ensure that the mainboard 100 can smoothly approach the neck 22ab of the flange 22a of the bearing stand 22.

[0034] In some embodiments, see Figure 1 and Figure 2 The extension portion 120 is arranged at one end of the outer side of the arc-shaped portion 110. Compared with the outer side length of the arc-shaped portion 110, only a small section of the extension portion 120 is required, which is beneficial to saving materials.

[0035] In other embodiments, the extension portion 120 may also be Figure 2 For example, the extension portion 120 is also an arc-shaped strip, and is arranged along the outer arc side 111 of the arc-shaped portion 110 of the main board 100 .

[0036] Regarding the design concept of the extension 120, please refer to Figure 1 , Figure 2 and Figure 3 When the arc portion 110 is successfully sleeved on the neck 22ab of the flange 22a of the bearing platform 22, the handle 200 is sufficiently far away from the neck 22ab through the overhanging portion 120, avoiding unnecessary space interference problems and achieving smooth installation.

[0037] In some embodiments, see Figure 2 and Figure 3 The length direction of the handle rod 200 is arranged in the same direction as the axial direction of the arc-shaped portion 110 .

[0038] In some embodiments, see Figure 3 The radius of the inner arc side 112 is 18 mm, and the radius of the outer arc side 111 is 32 mm.

[0039] In some embodiments, the stem 200 is 25 mm long.

[0040] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A dial indicator fixture device for centering a large motor encoder, characterized in that: The dial indicator fixture device comprises: A main board, the main board comprising an arc-shaped portion and an outward extension portion, the arc-shaped portion having an outer arc side and an inner arc side, the outward extension portion being connected to the outer arc side of the arc-shaped portion, the arc-shaped portion being provided with a through hole, the axial direction of the through hole being the thickness direction of the arc-shaped portion; A handle rod, the handle rod is fixedly connected to the extending portion; A locking buckle, the locking buckle is mounted on the handle, and the locking buckle is used to clamp the dial indicator; Among them, under the condition that the encoder is connected to the bearing platform through an intermediate flexible connector, the bearing platform is provided with a flange connected to the intermediate flexible connector, and the flange includes a disk portion and a neck connected to one side of the thickness of the disk portion, and the diameter of the inner arc side is limited to be equal to the outer diameter of the neck.

2. The dial indicator fixture device according to claim 1, characterized in that: The central angle of the arc portion is controlled to be between 90° and 150°.

3. The dial indicator fixture device according to claim 1, characterized in that: The overhanging portion is arranged at one end of the outer side of the arc-shaped portion.

4. The dial indicator fixture device according to claim 1, characterized in that: The length direction of the handle rod is arranged in the same direction as the axial direction of the arc-shaped portion.

5. The dial indicator fixture device according to claim 1, characterized in that: A threaded hole is provided in the protruding portion, and the handle rod is threadedly connected to the protruding portion at the threaded hole.

6. The dial indicator fixture device according to claim 1, characterized in that: The arc-shaped portion is provided with the through holes having at least two diameter specifications.

7. The dial indicator fixture device according to claim 6, characterized in that: The arc-shaped portion is provided with three perforations, which are spaced apart in sequence along the arc direction of the arc-shaped portion, and the diameters of the three perforations are 6 mm, 8 mm and 10 mm respectively.

8. The dial indicator fixture device according to claim 1, characterized in that: The main board is made of steel material.

9. The dial indicator fixture device according to claim 1, characterized in that: The main structure of the handle rod is cylindrical.

10. The dial indicator fixture device according to claim 1, characterized in that: The radius of the inner arc side is 18 mm, and the radius of the outer arc side is 32 mm.

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