Fan shaft assembly size measuring device
By designing a fan shaft assembly dimension measurement device including mounting housing, measuring assembly and bearing assembly, the problem of large measurement errors in fan shaft production is solved, and accurate measurement of fan shaft diameter and groove depth is achieved, and quality inspection efficiency is improved.
Patent Information
- Application Number
- CN202421658219.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-13
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-13
AI Technical Summary
During the production and quality inspection of fan shafts, holding the fan shaft in hand can easily increase measurement errors, and it is difficult for existing tools to accurately measure the diameter and groove depth of the fan shaft.
A fan shaft assembly dimension measuring device is designed, including mounting housing, measuring assembly and load bearing assembly. The measurement assembly can accurately measure the diameter and groove depth of the fan shaft through the fit of the cylinder and the sleeve, using the movement of the scale rod and the bar plate. The bearing assembly provides stable support for the fan shaft through the design of the drive shaft and the workpiece seat for easy measurement.
By reducing the measurement method of holding the fan shaft with hand, the scale and transmission device are used to significantly reduce the measurement error and improve the efficiency and accuracy of fan shaft production quality inspection.
Smart Images

Figure CN222799893U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring devices, in particular to a fan shaft component size measuring device. Background Art
[0002] A fan is a household appliance commonly used in people's lives. It uses an electric motor to drive the fan blades to rotate to accelerate the circulation of air. It is mainly used for cooling down and circulating air. The motor is connected to the fan shaft and the fan blade seat.
[0003] Among them, when the fan shaft is produced, the quality inspection process is required to measure the size of the fan shaft to ensure that the size of the fan shaft is within the error range. Usually, the quality inspector uses a ruler to measure the length of the fan shaft, and uses a caliper and other tools to measure the diameter of the fan shaft. The fan shaft needs to be held by hand during the measurement process. The measurement method of holding the fan shaft by hand is prone to increase in measurement errors due to the tilt of the hand or the tilt of the measuring tool.
[0004] To this end, we propose a fan shaft assembly dimension measuring device. Utility Model Content
[0005] The purpose of the utility model is to provide a fan shaft assembly dimension measuring device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fan shaft assembly dimension measuring device, comprising a mounting shell, a measuring assembly, wherein the measuring assembly is used to measure the diameter of the fan shaft and the depth of the groove, wherein the measuring assembly is fixedly connected to the mounting shell, and a bearing assembly, wherein the bearing assembly is used to support the fan shaft when measuring the fan shaft, and wherein the bearing assembly is installed in the mounting shell.
[0007] Preferably, the measuring assembly includes a cylindrical cylinder, which is fixedly connected to a mounting shell, a sleeve is sleeved on the cylindrical cylinder, a bracket is fixedly connected to the sleeve, a strip plate is sleeved in the bracket, a scale rod is threadedly connected in the strip plate, a bearing seat is fixedly connected to the cylindrical cylinder, and the bearing seat is fixedly connected to the mounting shell.
[0008] Preferably, a connecting plate is fixedly connected in the sleeve, a compression spring is fixedly connected to the connecting plate, and the compression spring is installed in the cylindrical tube.
[0009] Preferably, a positioning pin is threadedly connected in the bracket.
[0010] Preferably, the bearing assembly includes a transmission shaft, the transmission shaft is rotatably connected to the mounting shell, a handwheel is fixedly connected to the transmission shaft, a slide is threadedly connected to the transmission shaft, the slide is sleeved to the mounting shell, and an I-shaped seat is fixedly connected to the slide.
[0011] Preferably, a grinding pad is fixedly connected to the work-shaped seat.
[0012] Preferably, a base is fixedly connected to the mounting shell, and a mounting hole is formed in the base.
[0013] Preferably, a guard plate is fixedly connected to the mounting shell.
[0014] The utility model has at least the following beneficial effects:
[0015] 1. Pull the sleeve upward on the outer wall of the cylinder, then place the fan shaft between the bearing seat and the bracket. The sleeve drives the bracket to press against the fan shaft, and the diameter of the fan shaft is measured by the scale on the outer wall of the cylinder. When it is necessary to measure the groove depth of other components of the fan shaft, place the component to be measured directly under the scale rod, move the strip plate in the bracket to drive the scale rod to extend into the groove of the component, and use the scale on the scale rod to determine the groove depth of the component.
[0016] By placing the fan shaft between the bracket and the bearing seat, the traditional method of measuring the handheld fan shaft is changed. The diameter of the fan shaft can be measured using the scale on the cylindrical tube, reducing unnecessary measurement errors. The depth of the groove can be determined by observing the distance that the scale rod is inserted into the groove of other components. The measuring component can be used to measure both the diameter of the fan shaft and the depth of the component groove, thereby increasing the quality inspection efficiency during fan shaft production. A detachable threaded connection is used between the strip plate and the scale rod, which is convenient for replacing scale rods of different lengths for depth measurement.
[0017] 2. Use the handwheel to drive the transmission shaft to rotate in the installation shell. As the transmission shaft rotates, the slide plate moves along the groove of the installation shell. The slide plate drives the I-shaped seat to move together. Place the fan shaft on the upper surface of the I-shaped seat and the bearing seat. Use the I-shaped seat to bear the fan shaft, and then measure the fan shaft diameter.
[0018] The fan shaft is supported by the design of the I-shaped seat in conjunction with the bearing seat, which assists in measuring the diameter of the fan shaft. The position of the I-shaped seat is changed by rotating the transmission shaft, which is beneficial for supporting the longer fan shaft and ensuring that the fan shaft is in a parallel state, making it easier to measure the fan shaft. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the structure of the compression spring, the connecting plate and the sleeve in the utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the sleeve, bracket and positioning pin in the utility model;
[0022] Figure 4 It is a structural schematic diagram of the transmission shaft, the slide plate and the I-shaped seat in the utility model;
[0023] Figure 5 It is a structural schematic diagram of the strip plate and the scale rod in the utility model.
[0024] In the figure: 1. Measuring component; 2. Bearing component; 3. Mounting shell; 4. Cylinder; 5. Sleeve; 6. Bracket; 7. Strip plate; 8. Scale rod; 9. Bearing seat; 10. Connecting plate; 11. Compression spring; 12. Positioning pin; 13. Transmission shaft; 14. Handwheel; 15. Slide plate; 16. I-shaped seat; 17. Grinding pad; 18. Base; 19. Mounting hole; 20. Guard plate. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] Embodiment 1
[0027] See also Figure 1-Figure 5 The utility model provides a technical solution for a fan shaft assembly dimension measuring device: a fan shaft assembly dimension measuring device, comprising a mounting shell 3, a measuring component 1, the measuring component 1 is used to measure the diameter of the fan shaft and the depth of the groove, the measuring component 1 is fixedly connected to the mounting shell 3, and a bearing component 2, the bearing component 2 is used to support the fan shaft when measuring the fan shaft, and the bearing component 2 is installed in the mounting shell 3.
[0028] The measuring assembly 1 comprises a cylindrical barrel 4, which is fixedly connected to a mounting shell 3, a sleeve 5 is sleeved on the cylindrical barrel 4, a bracket 6 is fixedly connected to the sleeve 5, a strip plate 7 is sleeved in the bracket 6, a scale rod 8 is threadedly connected in the strip plate 7, a bearing seat 9 is fixedly connected to the cylindrical barrel 4, and the bearing seat 9 is fixedly connected to the mounting shell 3. During use, when it is necessary to measure the diameter of the fan shaft, the sleeve 5 is pulled upward on the outer wall of the cylindrical barrel 4, and then the fan shaft is placed between the bearing seat 9 and the bracket 6. The sleeve 5 drives the bracket 6 to press against the fan shaft, and the diameter of the fan shaft is measured by the scale on the outer wall of the cylindrical barrel 4. When it is necessary to measure the diameter of the fan shaft, the sleeve 5 is pulled upward on the outer wall of the cylindrical barrel 4, and then the fan shaft is placed between the bearing seat 9 and the bracket 6. The sleeve 5 drives the bracket 6 to press against the fan shaft, and the diameter of the fan shaft is measured by the scale on the outer wall of the cylindrical barrel 4. When measuring the groove depth of other components of the shaft, the component to be measured is placed directly below the scale rod 8, and the strip plate 7 is moved in the bracket 6. The strip plate 7 drives the scale rod 8 to extend into the groove of the component, and the depth of the groove of the component is determined using the scale on the scale rod 8. In this embodiment, by placing the fan shaft between the bracket 6 and the bearing seat 9, the diameter of the fan shaft can be measured using the scale on the cylindrical tube 4, and the depth of the groove can be determined by observing the distance that the scale rod 8 is inserted into the groove of other components. The measuring component 1 can be used to measure both the diameter of the fan shaft and the depth of the component groove, thereby increasing the quality inspection efficiency during fan shaft production.
[0029] A connecting plate 10 is fixedly connected in the sleeve 5, and a compression spring 11 is fixedly connected to the connecting plate 10. The compression spring 11 is installed in the cylindrical tube 4. The connecting plate 10 is used to fix the position of the top of the compression spring 11, and the bottom of the compression spring 11 is fixed in the cylindrical tube 4. The setting of the compression spring 11 is convenient for driving the cylindrical tube 4 to automatically reset.
[0030] A positioning pin 12 is threadedly connected in the bracket 6 , and a thread is processed on the outer wall of the positioning pin 12 . The positioning pin 12 is used to fix the use position of the strip plate 7 in the bracket 6 .
[0031] Embodiment 2
[0032] The bearing assembly 2 includes a transmission shaft 13, which is rotatably connected to the mounting shell 3. A handwheel 14 is fixedly connected to the transmission shaft 13, and a slide plate 15 is threadedly connected to the transmission shaft 13. The slide plate 15 is sleeved and connected to the mounting shell 3, and an I-shaped seat 16 is fixedly connected to the slide plate 15. According to the above embodiment, when it is necessary to measure a longer fan shaft, the handwheel 14 drives the transmission shaft 13 to rotate in the mounting shell 3 through the bearing. As the transmission shaft 13 rotates, the slide plate 15 is driven to move along the groove of the mounting shell 3, and the slide plate 15 drives the I-shaped seat 16 to move together. The fan shaft is supported by the I-shaped seat 16. The fan shaft is supported by the design of the I-shaped seat 16 in cooperation with the bearing seat 9, and the diameter of the fan shaft is assisted. The position of the I-shaped seat 16 is changed by the rotation of the transmission shaft 13, which is beneficial to supporting the longer fan shaft and facilitating the measurement of the fan shaft.
[0033] A grinding pad 17 is fixedly connected to the I-shaped seat 16 . The grinding pad 17 is made of rubber material. The arrangement of the grinding pad 17 prevents the fan shaft from rolling randomly.
[0034] A base 18 is fixedly connected to the mounting shell 3 , and a mounting hole 19 is opened in the base 18 . The base 18 forms the entire mechanism, and the design of the mounting hole 19 in the base 18 facilitates fixing the position of the base 18 .
[0035] A guard plate 20 is fixedly connected to the mounting shell 3. The guard plate 20 is processed into an arc shape. Two guard plates 20 are symmetrically arranged. The guard plates 20 are used to place other components of the fan shaft.
[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A fan shaft assembly dimension measuring device, comprising a mounting housing (3), characterized in that: A measuring assembly (1), the measuring assembly (1) being used to measure the diameter of the fan shaft and the depth of the groove, the measuring assembly (1) being fixedly connected to the mounting housing (3); A bearing assembly (2), wherein the bearing assembly (2) is used to support the fan shaft when the fan shaft is measured, and the bearing assembly (2) is installed in a mounting housing (3).
2. A fan shaft assembly dimension measuring device according to claim 1, characterized in that: The measuring assembly (1) comprises a cylindrical tube (4), the cylindrical tube (4) being fixedly connected to a mounting shell (3), a sleeve (5) being sleeved on the cylindrical tube (4), a bracket (6) being fixedly connected to the sleeve (5), a strip plate (7) being sleeved in the bracket (6), a scale rod (8) being threadedly connected in the strip plate (7), a bearing seat (9) being fixedly connected to the cylindrical tube (4), and the bearing seat (9) being fixedly connected to the mounting shell (3).
3. A fan shaft assembly dimension measuring device according to claim 2, characterized in that: A connecting plate (10) is fixedly connected to the sleeve (5), a compression spring (11) is fixedly connected to the connecting plate (10), and the compression spring (11) is installed in the cylindrical tube (4).
4. A fan shaft assembly dimension measuring device according to claim 2, characterized in that: A positioning pin (12) is threadedly connected in the bracket (6).
5. The fan shaft assembly dimension measuring device according to claim 1, characterized in that: The bearing assembly (2) comprises a transmission shaft (13), the transmission shaft (13) is rotatably connected to the mounting shell (3), a hand wheel (14) is fixedly connected to the transmission shaft (13), a slide plate (15) is threadedly connected to the transmission shaft (13), the slide plate (15) is sleeve-connected to the mounting shell (3), and a work-shaped seat (16) is fixedly connected to the slide plate (15).
6. A fan shaft assembly dimension measuring device according to claim 5, characterized in that: A grinding pad (17) is fixedly connected to the work-shaped seat (16).
7. A fan shaft assembly dimension measuring device according to claim 5, characterized in that: A base (18) is fixedly connected to the installation shell (3), and a mounting hole (19) is provided in the base (18).
8. A fan shaft assembly dimension measuring device according to claim 1, characterized in that: A guard plate (20) is fixedly connected to the installation shell (3).