A device for measuring the diameter of an inertia disk

By designing an inertia disk diameter measuring device, and utilizing a fixed mechanism and an infrared measuring device combined with motor drive and gear transmission, the problem of large measurement error of the inertia disk was solved, and accurate dimensional measurement was achieved.

CN224435311UActive Publication Date: 2026-06-30QINGDAO XINGFANG ZHONGHE AGRI MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO XINGFANG ZHONGHE AGRI MASCH CO LTD
Filing Date
2025-09-10
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The current method of measuring the dimensions of an inertia disk requires attention to reduce airflow and vibration interference, which can lead to large measurement errors and make it difficult to accurately measure its radius or diameter.

Method used

An inertia disk diameter measuring device was designed, including a base plate, a placement plate, a mounting ring, a support column, a top plate, an infrared measuring device, and a fixing mechanism. The flange is fixed by the fixing mechanism, and the size of the inertia disk is measured by the infrared measuring device according to the length of the light rays. The measuring position is adjusted by combining motor drive and gear transmission.

Benefits of technology

This technology enables accurate measurement of the inertia disk's dimensions while minimizing airflow and vibration interference, thus reducing measurement errors.

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Abstract

This utility model relates to the field of measuring instrument technology and discloses an inertia disk diameter measuring device, including a base plate and a placement plate disposed inside the base plate. The inertia disk is disposed on the upper side of the placement plate. A rotatably connected mounting ring is provided on the upper side of the placement plate, and a support column is provided on the upper side of the mounting ring. A top plate is provided at the upper end of the support column, and a slidingly connected adjusting rod is provided on the lower side of the top plate. An infrared measuring device is slidably connected to one side of the support column and is disposed above the mounting ring. A fixing mechanism is provided on the upper side of the placement plate. This device has the advantages of adjustable measurement size and fixing function, solving the problem that the size of the inertia disk requires measuring its radius or diameter and then calculating its dimensions, and that the measurement of the inertia disk needs to minimize airflow and vibration interference to reduce errors.
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Description

Technical Field

[0001] This utility model relates to the field of measuring instrument technology, specifically to an inertia disk diameter measuring device. Background Technology

[0002] An inertia disk is an important experimental device in physics and engineering used to study rotational inertia and rotational dynamics. Its core function is to simulate and analyze the inertial characteristics of a rigid body rotating about a fixed axis, and it is widely used in mechanics experiments, mechanical system design, aerospace, and vehicle engineering. As a core tool for studying rigid body rotation, the inertia disk has significant value in basic physics teaching, mechanical engineering, and high-tech fields. Experimentally measuring its rotational inertia not only deepens our understanding of the laws of mechanics but also provides optimization basis for practical engineering problems.

[0003] The dimensions of the inertia disk need to be measured by measuring its radius or diameter, and then the dimensions are calculated. The measurement of the inertia disk needs to take care to reduce air flow and vibration interference and reduce errors. Therefore, an inertia disk diameter measuring device with adjustable measurement and fixing functions is designed to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an inertia disk diameter measuring device, which has the advantages of adjustable measurement size and fixed function. It solves the problem that the size of the inertia disk needs to be measured by measuring its radius or diameter and then calculating its size. The measurement of the inertia disk also needs to pay attention to reducing air flow and vibration interference to reduce errors.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned objectives of adjusting measurement dimensions and fixing functions, this utility model provides the following technical solution: an inertia disk diameter measuring device, comprising a base plate and a placement plate disposed inside the base plate, wherein the inertia disk is disposed on the upper side of the placement plate, the upper side of the placement plate is provided with a rotatably connected mounting ring, and the upper side of the mounting ring is provided with a support column, the upper end of the support column is provided with a top plate, and the lower side of the top plate is provided with a slidingly connected adjusting rod, one side of the support column is provided with a slidingly connected infrared measuring device, and the infrared measuring device is disposed above the mounting ring, and the upper side of the placement plate is provided with a fixing mechanism.

[0008] Preferably, the base plate has a large gear inside, which is fixedly connected to the lower side of the mounting ring. The outer side of the large gear has a meshing small gear, which is located inside the base plate. The lower side of the small gear is rotatably connected to the inner wall of the base plate.

[0009] Preferably, a fixing frame is provided on the lower side of the base plate, and a motor is provided inside the fixing frame. The output end of the motor passes through the interior of the base plate and is fixedly connected to the lower side of the pinion.

[0010] Preferably, the inner wall of the support column is provided with a sliding block that is slidably connected, and an infrared measuring device is installed on one side of the sliding block. The inner wall of the support column is provided with a screw that is rotatably connected, and the screw passes through the inner wall of the sliding block. One end of the screw is provided with an adjusting head, and the adjusting head is located on the upper side of the top plate.

[0011] Preferably, the top plate has a sliding block on its upper side and locking blocks at both ends of the sliding block. The outer side of the top plate has a limiting plate that works with the locking block, and the locking block is slidably connected to the inner wall of the limiting plate. The adjusting rod is installed on the lower side of the sliding block. A locking bolt is provided on one side of the locking block, and one end of the locking bolt passes through the inner wall of the locking block and contacts one side of the limiting plate.

[0012] Preferably, the fixing mechanism includes a base pad disposed on the upper side of the placement plate, and a plurality of fixing members are provided on the upper side of the base pad. One side of each fixing member is provided with a fixing spring for fixed connection, and the outer side of each fixing member is provided with a slot.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides an inertia disk diameter measuring device, which has the following beneficial effects: This inertia disk diameter measuring device installs a flange on the upper side of the infrared measuring device on the placement plate, and fixes the infrared measuring device of the fixing mechanism to the hole inside the flange, so that the flange can be fixed on the upper side of the infrared measuring device on the placement plate. The position of the infrared measuring device of the adjustment rod is adjusted according to the size of the flange so that it is located at the edge of the flange. The infrared measuring device irradiates the infrared measuring device of the adjustment rod and measures according to the length of the light. The size measured by moving the position of the infrared measuring device of the adjustment rod achieves the effects of adjusting the measurement size and fixing function. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present utility model;

[0016] Figure 2 This is a diagram showing the internal structure of the base plate of this utility model;

[0017] Figure 3 This is a structural diagram of the support column of this utility model;

[0018] Figure 4 This is an enlarged view of section A of this utility model;

[0019] Figure 5 This is a structural diagram of the fixing mechanism of this utility model.

[0020] In the diagram: 1. Base plate; 2. Placement plate; 3. Fixing mechanism; 301. Base pad; 302. Fixing component; 303. Fixing spring; 304. Slot; 4. Mounting ring; 5. Support column; 6. Top plate; 7. Infrared measuring device; 8. Adjusting rod; 9. Motor; 10. Fixing frame; 11. Small gear; 12. Large gear; 13. Adjusting head; 14. First sliding block; 15. Lead screw; 16. Limiting plate; 17. Locking bolt; 18. Snap-fit ​​block; 19. Second sliding block. Detailed Implementation

[0021] 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.

[0022] Example: Please refer to Figure 1-5 An inertia disk diameter measuring device includes a base plate 1 and a placement plate 2 disposed inside the base plate 1. The inertia disk is disposed on the upper side of the placement plate 2. A rotatably connected mounting ring 4 is provided on the upper side of the placement plate 2, and a support column 5 is provided on the upper side of the mounting ring 4. A top plate 6 is provided at the upper end of the support column 5, and a slidingly connected adjusting rod 8 is provided on the lower side of the top plate 6. An infrared measuring device 7 is slidably connected to one side of the support column 5 and is disposed above the mounting ring 4. A fixing mechanism 3 is provided on the upper side of the placement plate 2. The flange generally has holes inside. The flange is installed on the upper side of the placement plate 2, and the fixing mechanism 3 fixes the flange to the holes inside the flange, so that the flange can be fixed on the upper side of the placement plate 2. The position of the adjusting rod 8 is adjusted according to the size of the flange so that it is located at the edge of the flange. The infrared measuring device 7 irradiates the adjusting rod 8, and the length of the light is measured. The size is measured by moving the position of the adjusting rod 8.

[0023] A large gear 12 is installed inside the base plate 1, and the large gear 12 is fixedly connected to the lower side of the mounting ring 4. A small gear 11 is meshed with the large gear 12 on its outer side, and the small gear 11 is located inside the base plate 1. The lower side of the small gear 11 is rotatably connected to the inner wall of the base plate 1. A fixing frame 10 is installed on the lower side of the base plate 1, and a motor 9 is installed inside the fixing frame 10. The output end of the motor 9 passes through the interior of the base plate 1, and the output end of the motor 9 is fixedly connected to the lower side of the small gear 11. The motor 9 is installed at the bottom of the base plate 1 through the fixing frame 10. The output end of the motor 9 passes through the inner wall of the base plate 1 and connects to the small gear 11. The small gear 11 drives the large gear 12 to rotate inside the base plate 1, causing the large gear 12 to drive the placement plate 2 to rotate, thereby changing the position of the support column 5 and the top plate 6.

[0024] The inner wall of the support column 5 is provided with a first sliding block 14 that is slidably connected, and an infrared measuring device 7 is installed on one side of the first sliding block 14. The inner wall of the support column 5 is provided with a lead screw 15 that is rotatably connected, and the lead screw 15 passes through the inner wall of the first sliding block 14. One end of the lead screw 15 is provided with an adjusting head 13, and the adjusting head 13 is located on the upper side of the top plate 6. By rotating the adjusting head 13, the lead screw 15 is driven to rotate inside the support column 5, which indirectly causes the first sliding block 14 to move vertically on the inner wall of the support column 5. The infrared measuring device 7 is installed on one side of the first sliding block 14, and moves vertically on one side of the support column 5 through the first sliding block 14.

[0025] A second sliding block 19 is provided on the upper side of the top plate 6, and locking blocks 18 are provided at both ends of the second sliding block 19. A limiting plate 16 is provided on the outer side of the top plate 6 to cooperate with the locking blocks 18, and the locking blocks 18 are slidably connected to the inner wall of the limiting plate 16. An adjusting rod 8 is installed on the lower side of the second sliding block 19. A locking bolt 17 is provided on one side of the locking block 18, and one end of the locking bolt 17 penetrates the inner wall of the locking block 18 and contacts one side of the limiting plate 16. The second sliding block 19 is set on the upper side of the top plate 6 through the locking blocks 18. The limiting plate 16 limits the second sliding block 19 through the locking blocks 18, so that it can be stably placed on the upper side of the top plate 6. The locking bolt 17 locks the locking blocks 18, so that its position is fixed.

[0026] The fixing mechanism 3 includes a base pad 301 disposed on the upper side of the placement plate 2, and multiple fixing members 302 disposed on the upper side of the base pad 301. A fixing spring 303 is fixedly connected to one side of the fixing member 302, and a slot 304 is provided on the outer side of the fixing member 302. The flange is disposed on the upper side of the placement plate 2. The fixing member 302 penetrates the interior of the flange. The fixing member 302 is supported by the fixing spring 303 on the inner wall of the flange. The flange is snapped into the slot 304, thereby fixing the flange on the upper side of the placement plate 2.

[0027] Working principle: The flange typically has internal holes. The flange is positioned on the upper side of the placement plate 2. The fastener 302 penetrates the flange's interior and is supported by a fixing spring 303 against the inner wall of the flange. The flange is snapped into the slot 304, fixing it to the upper side of the placement plate 2. The output end of the motor 9 penetrates the inner wall of the base plate 1 and connects to the pinion 11. The pinion 11 drives the large gear 12 to rotate inside the base plate 1, causing the large gear 12 to rotate and thus change the position of the support column 5 and the top plate 6. The second sliding block 19 passes through the snap-fit ​​block 1. 8 is set on the upper side of the top plate 6. The limiting plate 16 limits the second sliding block 19 through the snap-fit ​​block 18, so that it can be stably placed on the upper side of the top plate 6. The locking bolt 17 locks the snap-fit ​​block 18 to fix its position. According to the size of the flange, the displacement adjustment rod 8 is positioned at the edge of the flange. By rotating the adjusting head 13, it drives the screw 15 to rotate inside the support column 5, indirectly causing the first sliding block 14 to move vertically on the inner wall of the support column 5. The infrared measuring device 7 is installed on one side of the first sliding block 14, and it moves vertically on one side of the support column 5 through the first sliding block 14.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inertia disk wheel diameter measuring device comprising a base plate (1), and a placement plate (2) disposed inside the base plate (1), and an inertia disk disposed on the upper side of the placement plate (2), characterized in that: The upper side of the placement plate (2) is provided with a rotating mounting ring (4), and the upper side of the mounting ring (4) is provided with a support column (5). The upper end of the support column (5) is provided with a top plate (6), and the lower side of the top plate (6) is provided with a slidingly connected adjusting rod (8). One side of the support column (5) is provided with a slidingly connected infrared measuring device (7), and the infrared measuring device (7) is located above the mounting ring (4). The upper side of the placement plate (2) is provided with a fixing mechanism (3).

2. An inertial wheel-encoder assembly as set forth in claim 1 wherein: The base plate (1) is provided with a large gear (12) inside, and the large gear (12) is fixedly connected to the lower side of the mounting ring (4). The outer side of the large gear (12) is provided with a meshing small gear (11), and the small gear (11) is located inside the base plate (1). The lower side of the small gear (11) is rotatably connected to the inner wall of the base plate (1).

3. An inertial wheel-encoder assembly as set forth in claim 2 wherein: The bottom plate (1) is provided with a fixing frame (10) on the lower side, and a motor (9) is provided inside the fixing frame (10). The output end of the motor (9) passes through the interior of the bottom plate (1), and the output end of the motor (9) is fixedly connected to the lower side of the pinion (11).

4. An inertial wheel-encoder assembly as set forth in claim 1 wherein: The inner wall of the support column (5) is provided with a first sliding block (14) that is slidably connected, and an infrared measuring device (7) is installed on one side of the first sliding block (14). The inner wall of the support column (5) is provided with a screw rod (15) that is rotatably connected, and the screw rod (15) passes through the inner wall of the first sliding block (14). One end of the screw rod (15) is provided with an adjusting head (13), and the adjusting head (13) is located on the upper side of the top plate (6).

5. An inertial wheel-assembly apparatus as set forth in claim 1 wherein: The top plate (6) is provided with a second sliding block (19) on its upper side, and the two ends of the second sliding block (19) are provided with locking blocks (18). The outer side of the top plate (6) is provided with a limiting plate (16) that works with the locking block (18). The locking block (18) is slidably connected to the inner wall of the limiting plate (16). The adjusting rod (8) is installed on the lower side of the second sliding block (19). The locking block (18) is provided with a locking bolt (17) on one side, and one end of the locking bolt (17) penetrates the inner wall of the locking block (18) and contacts one side of the limiting plate (16).

6. An inertial wheel-assembly apparatus as set forth in claim 1 wherein: The fixing mechanism (3) includes a base pad (301) disposed on the upper side of the placement plate (2), and a plurality of fixing members (302) are provided on the upper side of the base pad (301). A fixing spring (303) is fixedly connected on one side of the fixing member (302), and a slot (304) is provided on the outer side of the fixing member (302).