Device for measuring diameter of central rotating shaft

Abstract

The utility model discloses a device for measuring the diameter of a central rotating shaft, which relates to the technical field of rotating shaft diameter measurement and comprises a base and a control panel fixedly connected with one side of the surface of the base, and fixing blocks are fixedly connected with two sides of the top surface of the base. A rotating shaft needing to be measured is conveyed to the faces, opposite to the fixing block, of the two extrusion plates through the shallow groove formed in the top face of the conveying block, the second motor drives the gear to rotate, the toothed plate is made to move, and the extrusion plates extrude the rotating shaft to be tightly attached to the fixing block; measurement data are finally formed on a control panel by analyzing force formed by extrusion according to electric energy released by a second motor, an indication block driven by a toothed plate is utilized to form a diameter on the surface of a measuring scale, and finally the measurement data are compared and checked, so that manual holding is avoided during measurement, the measurement use performance of the device is improved, and the measurement efficiency is improved. Meanwhile, through movement of the indication block, data obtained through measurement and comparison are more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shaft diameter measurement, in particular to a measuring device for the diameter of a central rotating shaft. Background Art

[0002] Rotating machinery is widely used in all sectors of production and is essential for production. Steam turbines, generators, gas turbines, large fans, pumps, and other large-scale equipment are commonly used in the energy, petroleum, and chemical industries. The shaft is a core component of many rotating machines. When equipment is older and archival documentation, such as drawings, is missing, measuring the shaft diameter is often necessary during troubleshooting.

[0003] After searching, the applicant found that a Chinese patent disclosed "a device for measuring the diameter of a rotating shaft", and its publication number is "CN208751446U", which includes a straight ruler, which includes a first straight ruler and a second straight ruler. The first straight ruler and the second straight ruler are connected at their ends, and the angle β between the two opposite each other is 120 degrees. A second scale is provided on the side surface of the second straight ruler along the length direction, and a slide groove is provided on the side surface of the second straight ruler below the second scale along the length direction. The slide groove is provided with two positioning blocks that slide back and forth along its length direction, and the two positioning blocks have the same structure. The utility model can quickly read the reading by directly placing the straight ruler against the surface of the rotating shaft to be measured, and the diameter of the rotating shaft to be measured can be obtained by simple calculation. Since two sliding positioning blocks are provided on the second straight ruler, readings can be taken after contacting the surface of the rotating shaft to be measured from both sides and the readings are averaged. The position is determined by contact rather than by visual observation, which greatly improves the accuracy of the reading. It is also easy to carry, simple to operate, and has high measurement efficiency.

[0004] However, most existing shaft measuring devices use manual holding, which is not only inconvenient, but also affects the measured data due to hand shaking. In addition, the electronically controlled measurement cannot read the measured data when the machine is abnormal, which still has disadvantages. Utility Model Content

[0005] The purpose of the present utility model is to provide a measuring device for the diameter of the central rotating shaft, so as to solve the problem that the existing rotating shaft measuring devices proposed in the above-mentioned background technology mostly adopt the method of manual holding, which is not only inconvenient, but also affects the measured data due to the shaking of the hand, and the electronically controlled measurement cannot read the measured data when the machine is abnormal, and there are still problems with the drawbacks.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a measuring device for the diameter of a central rotating shaft, comprising a base and a control panel fixedly connected to one side of the surface, fixed blocks are fixedly connected to both sides of the top surface of the base, a conveying platform is fixedly connected to the top surface of the base located on one side of the fixed block, the top surface of the conveying platform is provided with a conveying block that can avoid manual holding and make the measurement more accurate, a measuring box that can clamp the rotating shaft and generate measurement data is fixedly connected to the top surface of the base located on one side of the two fixed blocks, and a ruler that can be visually inspected to verify the data is fixedly connected to one side of the surface of the measuring box.

[0007] Preferably, the conveying platform is fixedly connected to the top surface of the base on one side of the fixed block, a conveying groove is provided inside the conveying platform, and a screw rod is rotatably connected to one side of the inner wall of the conveying groove.

[0008] Preferably, a first motor is fixedly connected to one side of the inner wall of the conveying trough, an output end of the first motor is fixedly connected to the other end of the screw rod, and a limiting groove is provided on the bottom surface of the conveying trough.

[0009] Preferably, the internal thread of the transmission block is connected to one side of the screw rod wall, the top surface of the transmission block is provided with a shallow groove, and one side of the top surface of the shallow groove is fixedly connected with a stopper.

[0010] Preferably, the bottom surface of the conveying block is fixedly connected to the limiting block, and the bottom surface of the limiting block is slidably connected to the inner wall of the limiting groove.

[0011] Preferably, the two measuring boxes are fixedly connected to the top surface of the base and are located on one side of the two fixed blocks. A working cavity is opened inside the two measuring boxes. The top surfaces of the two working cavities are slidably connected to sliding blocks. The top surfaces of the two sliding blocks are fixedly connected to tooth plates. One side of the inner wall of the two working cavities is fixedly connected to a second motor. The output ends of the two second motors are fixedly connected to gears, and the output ends of the two second motors are rotatably connected to one side of the inner wall of the working cavity.

[0012] Preferably, the two gears are meshed with the tooth grooves of the two tooth plates respectively, and one end of the two tooth plates passes through the interior of the measuring box and extends to the outside to be fixedly connected with an extrusion plate.

[0013] Preferably, the two measuring rulers are fixedly connected to one side of the surface of the two measuring boxes, an extension groove is provided on one side of the surface of the two measuring boxes, and an extension block is fixedly connected to one side of the surface of the two tooth plates, one end of the two extension blocks respectively passes through the interior of the extension groove and extends to the outside, and the top surfaces of the two extension blocks are fixedly connected to an indicating block.

[0014] The technical effects and advantages of the utility model are as follows: the utility model utilizes the shallow groove provided on the top surface of the transmission block to transmit the rotating shaft to be measured to the opposite side of the two extrusion plates and the fixed block, utilizes the second motor to drive the gear to rotate, causes the tooth plate to move, and causes the extrusion plate to squeeze the rotating shaft close to the fixed block, and finally forms the measurement data on the control panel by analyzing the force formed by the extrusion according to the electric energy released by the second motor, and forms the diameter on the surface of the ruler by the indicator block driven by the tooth plate, and finally compares and verifies the measurement data, so that manual holding is eliminated during measurement, and the measurement performance of the device is improved. At the same time, the data obtained by the measurement comparison is more accurate through the movement of the indicator block. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the front cross-sectional structure of the conveying platform of the present invention.

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the transmission block of the present utility model.

[0018] Figure 4 This is a schematic diagram of the side sectional structure of the measuring box of the present utility model.

[0019] Figure 5 For the utility model Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0020] In the figure: 1. Base; 2. Control panel; 3. Fixed block; 4. Conveying platform; 401. Conveying slot; 402. Screw rod; 403. First motor; 404. Limiting slot; 5. Conveying block; 501. Shallow groove; 502. Stop block; 504. Limiting block; 6. Measuring box; 601. Working cavity; 602. Gear plate; 603. Second motor; 604. Gear; 605. Sliding block; 606. Extrusion plate; 7. Measuring ruler; 701. Extension slot; 702. Extension block; 703. Indicating block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1-5The device shown is a device for measuring the diameter of a central rotating shaft, comprising a base 1 and a control panel 2 fixedly connected to one side of the surface, fixed blocks 3 are fixedly connected to both sides of the top surface of the base 1, a conveying platform 4 is fixedly connected to the top surface of the base 1 on one side of the fixed block 3, a conveying block 5 is provided on the top surface of the conveying platform 4 to avoid manual gripping and thus making the measurement more accurate, a measuring box 6 is fixedly connected to the top surface of the base 1 on one side of the two fixed blocks 3, a measuring box 6 capable of clamping the rotating shaft and generating measurement data is fixedly connected to one side of the surface of the measuring box 6, a ruler 7 for visual inspection to verify the data is fixedly connected, the utility model utilizes a shallow groove 501 provided on the top surface of the conveying block 5 to be measured The measuring shaft is transmitted to the opposite side of the two squeezing plates 606 and the fixed block 3, and the second motor 603 is used to drive the gear 604 to rotate, causing the tooth plate 602 to move, so that the squeezing plate 606 squeezes the rotating shaft and presses it against the fixed block 3. The measurement data is finally formed on the control panel 2 by analyzing the force formed by the squeezing according to the electric energy released by the second motor 603, and the diameter is formed on the surface of the ruler 7 by the indicator block 703 driven by the tooth plate 602. Finally, the measurement data is compared and checked, which eliminates the need for manual holding during measurement and improves the measurement performance of the device. At the same time, the movement of the indicator block 703 makes the data obtained from the measurement comparison more accurate.

[0023] like Figure 1-3 As shown, the conveying platform 4 is fixedly connected to the top surface of the base 1 and is located on one side of the fixed block 3. A conveying groove 401 is provided inside the conveying platform 4. One side of the inner wall of the conveying groove 401 is rotatably connected to a screw rod 402. One side of the inner wall of the conveying groove 401 is fixedly connected to a first motor 403. The output end of the first motor 403 is fixedly connected to the other end of the screw rod 402. A limiting groove 404 is provided on the bottom surface of the conveying groove 401. The internal thread of the conveying block 5 is connected to one side of the rod wall of the screw rod 402. The top of the conveying block 5 A shallow groove 501 is provided on the surface. The setting of the shallow groove 501 can enable the rotating shaft to be located on the top surface of the transmission block 5 without affecting the measurement. A stop block 502 is fixedly connected to one side of the top surface of the shallow groove 501. The stop block 502 can prevent the rotating shaft from falling off when moving. The bottom surface of the transmission block 5 is fixedly connected to the limiting block 504, and the bottom surface of the limiting block 504 is slidably connected to the inner wall of the limiting groove 404. The setting of the limiting block 504 can make the movement of the transmission block 5 more stable.

[0024] like Figure 1 and Figure 4As shown, the two measuring boxes 6 are fixedly connected to the top surface of the base 1 and are located on one side of the two fixed blocks 3. A working cavity 601 is provided inside the two measuring boxes 6. The top surfaces of the two working cavities 601 are slidably connected to sliding blocks 605. The top surfaces of the two sliding blocks 605 are fixedly connected to toothed plates 602. One side of the inner wall of the two working cavities 601 is fixedly connected to a second motor 603. The output ends of the two second motors 603 are fixedly connected to a gear 604. The transmission of the gear 604 can make the toothed plates 602 move. The tooth plate 602 is moved so that the indicating block 703 fixedly connected to one side of the surface of the tooth plate 602 moves, and finally the verified data is formed, and the output ends of the two second motors 603 are rotationally connected to one side of the inner wall of the working cavity 601, and the two gears 604 are respectively engaged with the tooth grooves of the two tooth plates 602. One end of the two tooth plates 602 passes through the interior of the measuring box 6 and extends to the outside where an extrusion plate 606 is fixedly connected. The design of the two extrusion plates 606 can simultaneously measure the data at both ends of the rotating shaft, so as to perform data comparison.

[0025] like Figure 5 As shown, the two rulers 7 are fixedly connected to one side of the surface of the two measuring boxes 6, and an extension groove 701 is provided on one side of the surface of the two measuring boxes 6. An extension block 702 is fixedly connected to one side of the surface of the two tooth plates 602, and one end of the two extension blocks 702 respectively passes through the interior of the extension groove 701 and extends to the outside. The top surfaces of the two extension blocks 702 are fixedly connected to the indicating blocks 703.

[0026] Working principle of the utility model: When the utility model is used, the rotating shaft whose diameter needs to be measured is first placed on the shallow groove 501 opened on the top surface of the conveying block 5, and then the first motor 403 is driven to rotate the screw rod 402. When the screw rod 402 rotates, the screw rod 5 connected with the thread will produce a conveying effect inside the conveying platform 4, so that the rotation to be measured is located on the opposite side of the two measuring boxes 6 and the fixed block 3;

[0027] Then turn on the two second motors 603, and the gear 604 drives the tooth plate 602 to move through the drive of the second motor 603. When the tooth plate 602 moves, the extrusion plate 606 provided at one end will be used to close to the fixed block 3 to clamp the rotating shaft. The electric energy output by the second motor 603 is clamped to display the measurement data on the control panel 2. However, when the tooth plate 602 moves, the extension block 702 fixedly connected to one side of the surface of the tooth plate 602 can be used, and finally the indicator block 703 fixedly connected to the top surface of the extension block 702 is used to form the diameter data on the ruler 7, and finally the accurate measurement data is obtained by comparison.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for measuring the diameter of a central rotating shaft, comprising a base (1) and a control panel (2) fixedly connected to one side of the base, characterized in that: Both sides of the top surface of the base (1) are fixedly connected to fixed blocks (3); the top surface of the base (1) is located on one side of the fixed blocks (3) and is fixedly connected to a conveying platform (4); the top surface of the conveying platform (4) is provided with a conveying block (5) that can avoid manual holding and thus make the measurement more accurate; the top surface of the base (1) is located on one side of the two fixed blocks (3) and is fixedly connected to a measuring box (6) that can clamp the rotating shaft and generate measurement data; one side of the surface of the measuring box (6) is fixedly connected to a ruler (7) that can be visually inspected to verify the data.

2. The device for measuring the diameter of a central rotating shaft according to claim 1, characterized in that: The conveying platform (4) is fixedly connected to the top surface of the base (1) and is located on one side of the fixed block (3). A conveying groove (401) is provided inside the conveying platform (4), and a screw rod (402) is rotatably connected to one side of the inner wall of the conveying groove (401).

3. The device for measuring the diameter of a central rotating shaft according to claim 2, characterized in that: A first motor (403) is fixedly connected to one side of the inner wall of the transmission groove (401), an output end of the first motor (403) is fixedly connected to the other end of the screw rod (402), and a limiting groove (404) is provided on the bottom surface of the transmission groove (401).

4. The device for measuring the diameter of a central rotating shaft according to claim 1, characterized in that: The internal thread of the transmission block (5) is connected to one side of the rod wall of the screw rod (402), and a shallow groove (501) is provided on the top surface of the transmission block (5), and a stopper (502) is fixedly connected to one side of the top surface of the shallow groove (501).

5. The device for measuring the diameter of a central rotating shaft according to claim 4, characterized in that: The bottom surface of the transmission block (5) is fixedly connected to the limiting block (504), and the bottom surface of the limiting block (504) is slidably connected to the inner wall of the limiting groove (404).

6. The device for measuring the diameter of a central rotating shaft according to claim 1, characterized in that: The two measuring boxes (6) are fixedly connected to the top surface of the base (1) and are located on one side of the two fixed blocks (3). A working cavity (601) is provided inside the two measuring boxes (6). The top surfaces of the two working cavities (601) are slidably connected to sliding blocks (605). The top surfaces of the two sliding blocks (605) are fixedly connected to toothed plates (602). One side of the inner wall of the two working cavities (601) is fixedly connected to a second motor (603). The output ends of the two second motors (603) are fixedly connected to a gear (604), and the output ends of the two second motors (603) are rotatably connected to one side of the inner wall of the working cavity (601).

7. The device for measuring the diameter of a central rotating shaft according to claim 6, characterized in that: The two gears (604) are respectively meshed with the tooth grooves of the two tooth plates (602), and one end of each of the two tooth plates (602) passes through the interior of the measuring box (6) and extends to the outside to be fixedly connected with an extrusion plate (606).

8. The device for measuring the diameter of a central rotating shaft according to claim 7, characterized in that: The two measuring rulers (7) are fixedly connected to one side of the surface of the two measuring boxes (6), and an extension groove (701) is provided on one side of the surface of the two measuring boxes (6). An extension block (702) is fixedly connected to one side of the surface of the two tooth plates (602), and one end of the two extension blocks (702) respectively passes through the interior of the extension groove (701) and extends to the outside. The top surfaces of the two extension blocks (702) are fixedly connected to an indicating block (703).

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