A gear rotation smoothness detector

Abstract

The present invention discloses a gear rotation smoothness detector, which belongs to the field of gear transmission detection technology. The gear rotation smoothness detector includes: a power supply component, a cable, a motor component electrically connected in sequence, a driving gear coaxially fixedly connected to the motor component, and a workbench; wherein the rotating component and the motor component are both fixed on the workbench, and the motor component drives the driven gear to rotate through the driving gear, thereby driving the rotating component to rotate. The gear rotation smoothness detector provided by the present invention is characterized in that the motor component rotates at a constant speed and drives the rotating component at a constant speed through gear transmission to achieve uniform driving of the rotating component, and the relationship between the starting current and the tightness of the fit is identified by displaying the current change through an ammeter, and the rotation stuck point is identified by the change in current during rotation. Such real-time quantitative judgment makes up for the defect of the micrometer point reading during manual detection, greatly improves the detection efficiency, and saves related costs.

Description

Technical Field

[0001] The present invention relates to the technical field of gear transmission detection, in particular to a gear rotation smoothness detector. Background Art

[0002] Precision instruments often use gears to drive precision components that rotate continuously around their axes. This requires extremely smooth relative rotation between the cylindrical surfaces of the gear shafts, which are coaxially aligned. Unsmooth relative rotation between the cylindrical surfaces can be caused by a variety of factors, including insufficient guideway hardness, excessive component dimensions, excessive ball dimensions, inadequate measurement methods, uneven rotation speed, and substandard measurement environments. Inadequate measurement methods and uneven rotation speed are the primary culprits. Our previous inspection method on the production line involved manually rotating the cylindrical surfaces of the components under test and taking readings with a micrometer. However, we found that the failure rate for gear-driven components remained high even after assembly. This was because on-site testing with a dial indicator and dynamometer could easily miss stuck points, and tightness could only be measured at the monitoring point. This limited measurement to static measurements, not real-time dynamic testing, and ultimately, the inability to truly screen qualified parts. The resulting high rate of returns after assembly not only wasted labor but also significantly impacted progress and speed. Therefore, it is necessary to develop appropriate detection methods to determine whether the gear-driven parts assembled in the system can rotate smoothly, because the smoothness of the precision observation instrument during rotation is related to the image stabilization accuracy and aiming accuracy of the entire product, and is a crucial indicator. Summary of the Invention

[0003] The purpose of the present invention is to provide a gear rotation smoothness tester to solve the problem that after the parts driven by gears are tested for rotation smoothness using the existing manual static measurement method, there is a high rework rate, labor waste, and serious impact on progress and speed after they are installed in the whole machine.

[0004] To solve the above technical problems, the present invention provides a gear rotation smoothness tester for testing the rotation smoothness of a rotating component with a driven gear, the gear rotation smoothness tester comprising: a power supply component, a cable, a motor component electrically connected in sequence, a driving gear coaxially fixedly connected to the motor component, and a workbench;

[0005] The rotating component and the motor component are both fixed on the workbench. The motor component drives the driven gear to rotate through the driving gear, thereby driving the rotating component to rotate.

[0006] Optionally, the gear rotation smoothness detector further includes an ammeter, which is connected in series with the power supply component to display the current reading of the motor component.

[0007] Optionally, the ammeter is a 5-digit digital milliampere-level high-precision DC ammeter.

[0008] Optionally, a shell is installed on the outside of the motor component, and the motor component is fixed to the workbench through the shell.

[0009] Optionally, the shell and the workbench are both made of metal materials, and a plurality of magnets are provided between the shell and the workbench, and the magnets adsorb the shell on the workbench.

[0010] Optionally, there are at least two magnets.

[0011] Optionally, the motor component is a 24V DC forward and reverse motor with model number 10042GA775.

[0012] Optionally, the gear rotation smoothness detector further includes a speed regulator connected in series with the motor component for adjusting the rotation speed of the motor component.

[0013] The present invention provides a gear rotation smoothness tester, in which the motor component rotates at a uniform speed and drives the rotating component at a uniform speed through gear transmission, thereby achieving uniform driving of the rotating component, overcoming the unevenness of manual driving, and making up for the problem of inconvenience in shifting the position during manual driving; the current value is displayed by the ammeter, replacing the dynamometer and dial indicator to detect rotation smoothness, and the current change is displayed by the ammeter to identify the relationship between the starting current and the tightness of the fit, and the rotation card point is identified by the change in current during rotation. Such real-time quantitative judgment makes up for the defect of point reading of the micrometer during manual detection, greatly improves detection efficiency, and saves related costs, including being faster and more accurate than manual speed, reducing the rework rate, saving time and space, and significantly improving benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the components of a gear rotation smoothness detector provided by the present invention;

[0015] Figure 2 The present invention provides a schematic diagram of the working state of a gear rotation smoothness detector. DETAILED DESCRIPTION

[0016] The following is a detailed description of the gear rotation smoothness tester proposed by the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0017] Example 1

[0018] The present invention provides a gear rotation smoothness detector for detecting the rotation smoothness of a rotating component 10 with a driven gear 1. Figure 1 As shown. The gear rotation smoothness tester includes: a power supply component 6, a cable 5, a motor component 3 electrically connected in sequence, a driving gear 2 coaxially fixedly connected to the motor component 3, and a workbench 9; wherein the rotating component 10 and the motor component 3 are both fixed on the workbench 9, and the motor component 3 drives the driven gear 1 to rotate through the driving gear 2, thereby driving the rotating component 10 to rotate. Preferably, the power supply component 6 is a 100W AC to DC power supply component, whose function is to convert a 220V AC power supply into a 24V DC power supply, and the motor component 3 is a 24V DC forward and reverse motor with model number 10042GA775.

[0019] Specifically, the gear rotation smoothness tester further includes an ammeter 7, which is connected in series with the power supply component 6 and is used to display the current reading of the motor component 3. Preferably, the ammeter 7 is a 5-digit digital milliampere-level high-precision DC ammeter.

[0020] A housing 4 is mounted on the exterior of the motor component 3, and the motor component 3 is fixed to the workbench 9 via the housing 4. The housing 4 and the workbench 9 are both made of metal. A plurality of magnets 8 are disposed between the housing 4 and the workbench 9. The magnets 8 adsorb the housing 4 onto the workbench 9, thereby quickly and stably securing the housing 4 to the workbench 9, thereby enabling the driving gear 2 to stably engage with the driven gear 1. At least two magnets 8 are provided, and in this first embodiment, two magnets 8 are provided.

[0021] The gear rotation smoothness detector further includes a speed regulator (not shown in the figure), which is connected in series with the motor component 3 and is used to adjust the rotation speed of the motor component 3.

[0022] In the first embodiment, the module of the driven gear 1 in the rotating component 10 being tested is 0.5, the number of teeth is 140, the tooth width is 4.1, and the pressure angle is 20 degrees. Therefore, the module of the driving gear 2 selected is 0.5, the number of teeth is 14, the tooth width is 4.8, and the pressure angle is 20 degrees.

[0023] Working principle:

[0024] like Figure 2As shown, the housing 4 with the motor component 3 mounted thereon is adsorbed onto the workbench 9. The rotating component 10 to be tested is fixed to the workbench 9. The driving gear 2 is meshed with the driven gear 1. The power supply component 6 is activated, and the motor component 3 is operated. The motor component 3 drives the driven gear 1 to rotate via the driving gear 2, and the driven gear 1 drives the rotating component 10 to rotate. During startup, a very low voltage is supplied to the motor component 3, and the voltage is gradually increased to observe the meshing transmission. The tightness of the rotating shaft is determined by the stable current after startup.

[0025] The gear rotation smoothness tester provided by the present invention is characterized in that the motor component 3 rotates at a uniform speed and drives the rotating component 10 at a uniform speed through gear transmission, thereby achieving uniform driving of the rotating component 10, overcoming the unevenness of manual driving, and making up for the problem of inconvenience in shifting the position during manual driving; the current value is displayed by the ammeter 7, replacing the dynamometer and dial indicator to detect rotation smoothness, and the current change is displayed by the ammeter 7 to identify the relationship between the starting current and the tightness of the fit, and the rotation card point is identified by the change in current during rotation. Such real-time quantitative judgment makes up for the defect of point reading of the micrometer during manual detection, greatly improves the detection efficiency, and saves related costs, including being faster and more accurate than manual speed, reducing the rework rate, saving time and space, and significantly improving the efficiency.

[0026] The gear rotation smoothness detector provided by the present invention is particularly suitable for driving small components of precision instruments. It is preferred to use a DC deceleration slow motor, including a 12V or 24V low-speed DC micro-torque; it is preferred to use a milliampere-level high-precision DC ammeter; it is preferred to use a 220V AC to 12V or 24V DC switching power supply, and the voltage of the motor component 3 is consistent with that of the power supply component 6.

[0027] Extensive testing has shown that when the starting current is between 35mA and 50mA, the rotational tightness of the tested component meets operational requirements. Based on actual technical requirements, the operating speed is set at one revolution every 24 seconds. Current monitoring is performed after startup. When the current fluctuates within the 40mA to 70mA range, a current change of less than 30mA indicates a shaft sticking point is acceptable.

[0028] Extensive experimental data demonstrates that the gear rotation smoothness tester has increased the qualified rate of tested components from approximately 53% to between 90% and 93%. This improvement significantly reduces the rate of machine repairs and component damage, substantially improving the assembly process and quality, significantly increasing actual economic benefits, and compensating for the shortcomings of manual labor.

[0029] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A gear rotation smoothness detector for detecting the rotation smoothness of a rotating component (10) with a driven gear (1), characterized in that: The gear rotation smoothness detector comprises: a power supply component (6), a cable (5), a motor component (3) electrically connected in sequence, a driving gear (2) coaxially fixedly connected to the motor component (3), and a workbench (9); The rotating component (10) and the motor component (3) are both fixed on the workbench (9); the motor component (3) drives the driven gear (1) to rotate via the driving gear (2), thereby driving the rotating component (10) to rotate; The ammeter (7) is a 5-digit digital milliampere-level high-precision DC ammeter; A housing (4) is installed outside the motor component (3), and the motor component (3) is fixed on the workbench (9) through the housing (4); The shell (4) and the workbench (9) are both made of metal materials. A plurality of magnets (8) are provided between the shell (4) and the workbench (9), and the magnets (8) adsorb the shell (4) onto the workbench (9); The gear rotation smoothness detector further comprises a speed regulator connected in series with the motor component (3) for regulating the rotation speed of the motor component (3); The relationship between the starting current and the tightness of the fit is identified by displaying the current change through the ammeter (7), and the rotation blocking point is identified by the change in the current during rotation; During startup, the motor component (3) is supplied with a low voltage, and the voltage is gradually increased to observe the meshing transmission condition, and the tightness of the rotating shaft is judged based on the stable current size after startup.

2. The gear rotation smoothness detector according to claim 1, characterized in that: The gear rotation smoothness detector further comprises an ammeter (7), which is connected in series with the power supply component (6) and is used to display the current reading of the motor component (3).

3. The gear rotation smoothness detector according to claim 1, characterized in that: At least two magnets (8) are provided.

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