Gear piece rotating speed sensitivity detection tool

Abstract

The utility model discloses a gear member rotation speed sensitivity detection tool comprising a base plate, the top surface of the base plate is provided with a gear fixing table through a lifting member, the top surface of the gear fixing table clamps and fixes a gear member, and the other side of the base plate opposite to the gear member is provided with a rotation speed test member; the rotating speed test piece comprises a first photosensitive element, a slit and a first light source, wherein the slit and the first light source are located on the same axis with the first photosensitive element. Gear teeth of the gear piece or gear tooth gaps between adjacent gear teeth are located on a connecting axis between the slit and the first photosensitive element; according to the utility model, the rotating gear is directly measured, and a shaft-to-shaft butt joint structure is not needed, so that the rotating speed test of the gear piece is realized; and the rotating speed of the gear piece is tested through the photoelectric effect, so that the sensitivity is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of rotation speed testing, in particular to a gear speed sensitivity detection tool. Background Art

[0002] When measuring the rotation speed of a gear, it is actually measuring the rotation speed of the motor that drives the gear. In the prior art, the rotation measurement of a click shaft mostly uses a code disk or a Hall speed measuring device to connect the transmission shaft with the speed measuring interface of the code disk or the Hall speed measuring device; or the shaft to be measured and the speed measuring shaft are directly connected in a centered manner, which is bound to cause problems such as the two connecting shafts being loose and the like.

[0003] The related art lacks a method for directly testing the speed of a gear component through a rotating gear, and therefore a gear component speed sensitivity detection tool is provided. Summary of the invention

[0004] The utility model aims to solve the problem in the prior art that there is a lack of a method for directly testing the rotation speed of a gear component through a rotating gear.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A gear component speed sensitivity detection tool comprises a base plate, a gear fixing platform is arranged on the top surface of the base plate through a lifting member, the gear fixing platform clamps and fixes the gear component, and a speed test piece is arranged on the other side of the base plate opposite to the gear component; the speed test piece comprises: a first photosensitive element, and a slit and a first light source located on the same axis as the first photosensitive element; the gear teeth of the gear component or the gear gap between adjacent gear teeth are located on the connecting axis between the slit and the first photosensitive element.

[0007] Preferably, the speed test piece also includes a test plate vertically arranged on one side of the base plate, and the test plate is a convex-shaped structure; a hollow cavity is opened inside the test plate, and a symmetrical electric push rod is arranged in the hollow cavity, and the telescopic end of the electric push rod is located at the top end outside the test plate, and the telescopic direction thereof is perpendicular to the base plate; a supporting cross bar is connected between the tops of the symmetrical electric push rods, and a telescopic tube vertically penetrates the midpoint of the supporting cross bar, and the telescopic tube is fixedly connected to the supporting cross bar.

[0008] Preferably, a photosensitive fixing ring is provided at the top of the telescopic tube, and the Y-axis diameter of the photosensitive fixing ring coincides with that of the telescopic tube; a plurality of radial tubes are radially provided inside the photosensitive fixing ring, and the first photosensitive elements are installed at the ends of the radial tubes, the first photosensitive elements are located at the axis of the photosensitive fixing ring, and the electrical conductors of the first photosensitive element extend into the test board through vertical radial tubes and telescopic tubes.

[0009] Preferably, a sleeve is vertically fixed on the top surface of the test board, the sleeve is opposite to the telescopic tube, and the telescopic tube slides within the sleeve within a limited position; the electrical wire of the first photosensitive element passes through the sleeve and extends into the test board.

[0010] Preferably, a first connecting rod is provided at the top of the photosensitive fixing ring in the direction of the gear fixing platform, and the head end of the first connecting rod, the photosensitive fixing ring and the telescopic tube are located on the same vertical line; a baffle plate is provided vertically downward at the end of the first connecting rod, the baffle plate is penetrated by the slit, and the slit is located on the axial extension line of the photosensitive fixing ring.

[0011] Preferably, a second connecting rod is fixed to the top surface of the first connecting rod, and the second connecting rod is an inverted L-shaped structure, at the end of which the first light source and the second light source are fixed; the irradiation direction of the first light source is perpendicular to the photosensitive fixing ring, and its light just passes through the slit and irradiates onto the first photosensitive element.

[0012] Preferably, the irradiation direction of the second light source is perpendicular to the base plate, and a light receiving area for receiving the second light source is provided at the irradiation position on the base plate surface. The light receiving area can have a built-in second first photosensitive element and connect it to the microcontroller signal.

[0013] Compared with the prior art, the utility model provides a gear speed sensitivity detection tool, which has the following beneficial effects:

[0014] In the present invention, the light (light wave) of the first light source is sensed by the first photosensitive element through the slit and the adjacent gear tooth gap 63, and the electrical signal generated by the first photosensitive element is transmitted to the microcontroller. At this time, there is a positive proportional relationship between the rotation speed N of the gear per second and the number of times N1 that the light passes through the slit and the adjacent gear tooth gap 63. The number of times N1 that the light passes through the slit and the adjacent gear tooth gap 63 is the frequency N2 of the electrical signal generated by the first photosensitive element; the microcontroller converts the frequency of the electrical signal through coding and outputs the corresponding rotation speed, and directly measures the rotating gear without using the shaft-to-shaft docking structure, thereby realizing the rotation speed test of the gear part; and the present invention tests the rotation speed of the gear part through the photoelectric effect, and its sensitivity is higher.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0018] Figure 3 It is a front structural schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of signal connection of the utility model;

[0020] Figure 5 This is a schematic diagram of the gear member of the utility model;

[0021] In the figure: 1, bottom plate; 2, gear fixing table; 3, speed test piece; 4, first connecting rod; 5, second connecting rod; 6, gear piece; 11, light receiving area; 12, push rod switch; 13, first light source switch; 14, second light source switch; 15, microcontroller; 16, reminder light; 21, lifting piece; 31, test board; 32, electric push rod; 33, supporting cross bar; 34, sleeve; 35, telescopic tube; 36, photosensitive fixing ring; 37, radial tube; 38, first photosensitive element; 39, display screen; 41, baffle; 42, slit; 51, first light source; 52, second light source; 61, gear motor; 62, gear; 63, gear tooth gap. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Reference Figure 1-Figure 5 , a gear speed sensitivity detection tool, comprising a bottom plate 1, a gear fixing platform 2 is arranged on the top surface of the bottom plate 1 through a lifting member 21, and the gear fixing platform 2 clamps and fixes the gear member 6 on the top surface through a clamping member (not shown in the figure); in this embodiment, the gear member 6 is a gear 62 driven by a gear motor 61, which is preferably a spur gear. If a helical gear is used, the gap between adjacent helical gear teeth must also be able to be passed by the light wave of the first light source 51 of this embodiment. A speed test piece 3 for measuring the speed of the gear member 6 is arranged on the other side of the bottom plate 1 relative to the gear member 6.

[0025] Further, the lifting member 21 is preferably a height adjustment mechanism driven by a cylinder, and a hydraulically driven structure may also be used, which depends on the size, model, dimensions and weight of the gear member 6. The clamping member may be provided with clamping plates on both sides of the gear motor 61, and the clamping plates are driven by springs or threaded rods to achieve the function of fixing the gear motor 61 on the gear fixing platform 2. Of course, the clamping member may also adopt a variety of structures or components capable of fixing the gear motor 61, which will not be described in detail in this embodiment.

[0026] When the rotation speed of the gear part 6 needs to be measured, the gear motor 61 is placed on the gear fixing platform 2 and fixed by a clamp, and then the height of the gear motor 61 is adjusted to a test area that can be tested by the rotation speed test piece 3 by the lifting part 21.

[0027] Reference Figure 3 In this embodiment, the rotation speed test piece 3 includes a test plate 31 vertically arranged on one side of the bottom plate 1, and the test plate 31 is a convex structure; a hollow cavity is opened inside the test plate 31, and a symmetrical electric push rod 32 is arranged in the hollow cavity, and the telescopic end of the electric push rod 32 is located at the outer top of the test plate 31, and its telescopic direction is perpendicular to the bottom plate 1. A support cross bar 33 is connected between the tops of the symmetrical electric push rods 32, and a telescopic tube 35 vertically penetrates the midpoint of the support cross bar 33, and the telescopic tube 35 is fixedly connected to the support cross bar 33.

[0028] A photosensitive fixing ring 36 is disposed at the top of the telescopic tube 35, and the Y-axis diameter of the photosensitive fixing ring 36 coincides with that of the telescopic tube 35. A plurality of radial tubes 37 are disposed radially inside the photosensitive fixing ring 36, and photosensitive elements are mounted at the ends of the plurality of radial tubes 37. The photosensitive elements are located at the axis of the photosensitive fixing ring 36, and the electrical wires of the photosensitive elements extend into the test board 31 through the vertical radial tubes 37 and the telescopic tube 35.

[0029] Specifically, a sleeve 34 is vertically fixed on the top surface of the test board 31, and the sleeve 34 faces the telescopic tube 35. The telescopic tube 35 slides within the sleeve 34. The electrical wire of the photosensitive element passes through the sleeve 34 and extends into the test board 31.

[0030] Reference Figures 1 to 3 The top of the photosensitive fixing ring 36 is provided with a first connecting rod 4 facing the gear fixing platform 2, and the head end of the first connecting rod 4, the photosensitive fixing ring 36 and the telescopic tube 35 are located on the same vertical line. The end of the first connecting rod 4 is vertically downwardly provided with a shielding plate 41, and the shielding plate 41 is penetrated by a slit 42, and the slit 42 is located on the axial extension line of the photosensitive fixing ring 36.

[0031] Furthermore, a second connecting rod 5 is fixed on the top surface of the first connecting rod 4. The second connecting rod 5 is an inverted L-shaped structure, and a first light source 51 and a second light source 52 are fixed at the ends thereof. Specifically, the irradiation direction of the first light source 51 is perpendicular to the photosensitive fixing ring 36, and its light just passes through the slit 42 and irradiates onto the photosensitive element.

[0032] As an explanation of the above embodiment, a photosensitive element is a device that can sense light signals and convert them into electrical signals. The photosensitive element is manufactured based on the photoelectric effect, that is, when light irradiates the surface of the photosensitive element, the light energy will stimulate the movement of electrons, thereby generating electrical signals. Furthermore, the test board 31 is also provided with a microcontroller 15 for receiving the photosensitive element signal. The photosensitive element, the microcontroller 15 and the connected electrical wires must form an electrical circuit; when the photosensitive element is exposed to light, an electrical signal is generated and transmitted to the microcontroller 15.

[0033] Furthermore, the irradiation direction of the second light source 52 is perpendicular to the bottom plate 1, and a light receiving area 11 for receiving the second light source 52 is provided at the irradiation position on the surface of the bottom plate 1. The light receiving area 11 can be built with a second photosensitive element, and the second photosensitive element is connected to the microcontroller 15 signal.

[0034] In this embodiment, the test board 31 is also provided with a number of electronic switches, such as a push rod switch 12, a first light source switch 13, and a second light source switch 14; the test board 31 is also provided with a display screen 39 for displaying output digital display signals. Specifically, the push rod switch 12 is connected to the electric push rod 32 through a microcontroller 15 signal, the first light source switch 13 is connected to the first light source 51 through a signal, the photosensitive element is output to the display screen 39 through a microcontroller 15 signal, the second light source switch 14 is connected to the second light source 52 through a signal, and the second photosensitive element is output to the display screen 39 through a microcontroller 15 signal. Of course, the second photosensitive element can be arranged based on actual operation requirements. When the second light source 52 element is arranged in the light receiving area 11, a reminder element, such as a reminder light 16, should be arranged on the test board 31, which is used to receive relevant instructions output by the second light source 52 element through the microcontroller 15.

[0035] The following is a process of how the present invention measures the rotation speed of the gear member 6. The gear motor 61 is placed at a suitable position on the gear fixing platform 2, and then the height of the gear fixing platform 2 is adjusted by the lifting member 21, so that the gear teeth of the gear member 6 or the adjacent gear tooth gap 63 are located between the slit 42 and the photosensitive element.

[0036] Of course, the test position at this time may not meet the test requirements; from the above embodiment, it can be seen that the test position requirements are: the gear teeth of the gear member 6 or the adjacent gear tooth gap 63 are located between the slit 42 and the photosensitive element, and the plane between the irradiation line of the second light source 52 and the diameter line of the gear member 6 should be just perpendicular to the side plane of the gear member 6. That is, the irradiation line of the second light source 52 falls vertically on the rotating shaft of the gear member 6; and at this time, the light of the second light source 52 cannot be received by the second photosensitive element of the light receiving area 11, then the reminder light 16 output by the electrical signal of the second photosensitive element can also issue an instruction that the test position has been met. Of course, it is also possible to judge whether the test position meets the requirements by whether the naked eye light source falls on the transmission shaft of the gear motor 61 instead of falling on the bottom plate 1.

[0037] The adjustment of the test position can also be fine-tuned by controlling the lifting and lowering of the push rod motor. Specifically, when the size of the gear 62 is large, the height of the electric push rod 32 is lifted and lowered, so that the support cross bar 33 can drive the height lifting and lowering control of the photosensitive fixing ring 36, and the photosensitive element, slit 42 and first light source 51 of the photosensitive fixing ring 36 are coaxial and synchronously displaced, so it can adapt to gears 6 of different diameters.

[0038] When the test position meets the requirements, the first light source 51 is turned on, and the gear motor 61 is started, and the gear motor 61 drives the gear member 6 to rotate. The light (light wave) of the first light source 51 is sensed by the first photosensitive element 38 through the slit 42 and the adjacent gear tooth gap 63, and the electrical signal generated by the first photosensitive element 38 is transmitted to the microcontroller 15. At this time, there is a positive proportional relationship between the rotation speed N of the gear 62 per second and the number of times N1 that the light passes through the slit 42 (adjacent gear tooth gap 63). The number of times N1 that the light passes through the slit 42 (adjacent gear tooth gap 63) is the frequency N2 of the electrical signal generated by the first photosensitive element 38; the microcontroller 15 converts the frequency of the electrical signal through coding and outputs the corresponding rotation speed, thereby realizing the rotation speed test of the gear member 6. In addition, the utility model tests the rotation speed of the gear member 6 through the photoelectric effect, and its sensitivity is higher.

[0039] The microcontroller 15 in this embodiment is a rangefinder controller of model C5B12-10m.

[0040] The first light source 51 and the second light source 52 are preferably LED infrared lamps.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gear speed sensitivity detection tool, comprising a bottom plate (1), a gear fixing platform (2) being arranged on the top surface of the bottom plate (1) via a lifting member (21), the gear fixing platform (2) clamping and fixing the gear part (6) on the top surface, and a speed test piece (3) being arranged on the other side of the bottom plate (1) opposite to the gear part (6); characterized in that: The rotation speed test piece (3) comprises: a first photosensor (38), and a slit (42) and a first light source (51) located on the same axis as the first photosensor (38); the gear teeth of the gear piece (6) or the gear tooth gap 63 (63) between adjacent gear teeth are located on the connecting axis between the slit (42) and the first photosensor (38).

2. A gear speed sensitivity detection tool according to claim 1, characterized in that: The rotation speed test piece (3) further comprises a test plate (31) vertically arranged on one side of the base plate (1), the test plate (31) being a convex-shaped structure; a hollow cavity is provided inside the test plate (31), symmetrical electric push rods (32) are arranged in the hollow cavity, the telescopic ends of the electric push rods (32) are located at the top end outside the test plate (31), and the telescopic directions thereof are perpendicular to the base plate (1); a support cross bar (33) is connected between the tops of the symmetrical electric push rods (32), a telescopic tube (35) vertically penetrates the midpoint of the support cross bar (33), and the telescopic tube (35) is fixedly connected to the support cross bar (33).

3. A gear speed sensitivity detection tool according to claim 2, characterized in that: A photosensitive fixing ring (36) is provided at the top of the telescopic tube (35), and the Y-axis diameter of the photosensitive fixing ring (36) coincides with that of the telescopic tube (35); a plurality of radial tubes (37) are provided radially inside the photosensitive fixing ring (36), and the first photosensitive elements (38) are installed at the ends of the plurality of radial tubes (37); the first photosensitive elements (38) are located at the axis of the photosensitive fixing ring (36), and the electrical conductors of the first photosensitive elements (38) extend into the test board (31) through the vertical radial tubes (37) and the telescopic tube (35).

4. A gear speed sensitivity detection tool according to claim 3, characterized in that: A sleeve (34) is vertically fixed on the top surface of the test board (31), the sleeve (34) is directly opposite to the telescopic tube (35), and the telescopic tube (35) slides within the sleeve (34) in a limited position; the electric wire of the first photosensitive element (38) passes through the sleeve (34) and extends into the test board (31).

5. The gear speed sensitivity detection tool according to claim 3, characterized in that: A first connecting rod (4) is provided at the top of the photosensitive fixing ring (36) in the direction of the gear fixing platform (2), and the head end of the first connecting rod (4), the photosensitive fixing ring (36) and the telescopic tube (35) are located on the same vertical line; a shielding plate (41) is provided vertically downward at the end of the first connecting rod (4), and the shielding plate (41) is penetrated by the slit (42), and the slit (42) is located on the axial extension line of the photosensitive fixing ring (36).

6. A gear speed sensitivity detection tool according to claim 5, characterized in that: A second connecting rod (5) is fixed to the top surface of the first connecting rod (4); the second connecting rod (5) is an inverted L-shaped structure, and the first light source (51) and the second light source (52) are fixed to the ends of the second connecting rod; the irradiation direction of the first light source (51) is perpendicular to the photosensitive fixing ring (36), and its light just passes through the slit (42) and irradiates the first photosensitive element (38).

7. A gear speed sensitivity detection tool according to claim 6, characterized in that: The irradiation direction of the second light source (52) is perpendicular to the base plate (1), and a light receiving area (11) for receiving the second light source (52) is provided at the irradiation position on the surface of the base plate (1). The light receiving area (11) can be built with a second first photosensitive element (38) and connected to the microcontroller (15) signal.

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