Inertia ring dynamic balance detection device

Abstract

The utility model relates to the technical field of dynamic balancing machines, and discloses an inertia ring dynamic balance detection device which comprises a main transmission shaft and a tray used for fixing a flywheel, the main transmission shaft is detachably installed on a rotating platform used for providing rotating force, the tray is detachably installed on the main transmission shaft, the tray is in a stepped circular truncated cone shape, and the flywheel is arranged on the tray. The tray comprises a round table used for being arranged on the inner wall of the annular flywheel in a sleeved mode and a base plate used for supporting the flywheel, the base plate is located below the round table and coincides with the center of the round table, the diameter of the base plate is larger than that of the round table, and a plurality of positioning pins used for being connected with hole position pins on the flywheel are arranged on the base plate. The plurality of positioning pins are equidistantly distributed along the circumferential edge of the chassis; the technical problems that in the prior art, a flywheel is tedious to fix and disassemble, and the detection efficiency of the flywheel is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic balancing machines, in particular to an inertia ring dynamic balancing detection device. Background Art

[0002] The flywheel dynamic balancing machine is a professional equipment used to detect and correct the imbalance of the flywheel. It is used to detect the imbalance generated by the flywheel during rotation and correct it by milling and deweighting to ensure that the flywheel can run smoothly at high speed.

[0003] For example, the Chinese patent application publication number is CN 103091038 A, and a flywheel dynamic balance detection clamping device; including a main transmission shaft, a support sleeve for mounting the flywheel is provided on the main transmission shaft, an elastic sleeve is provided in the annular space formed by the support sleeve and the flywheel, and the outer end face of the elastic sleeve is in close contact with the flywheel and is positioned so that the flywheel and the main transmission shaft are coaxially arranged. When fixing the flywheel, the flywheel must first be installed on the support sleeve, and then the flywheel must be fixed on the support sleeve with screws, and then the elastic sleeve must be knocked into the inner hole of the flywheel, and then the pressure plate must be installed on the main transmission shaft, close to the end face of the elastic sleeve, and finally the round nut must be screwed on to press the elastic sleeve into place, so that the flywheel is tightened and accurately positioned.

[0004] After the flywheel is fixed, the detection time required to start the dynamic balancing machine is short. If the above-mentioned flywheel dynamic balancing detection clamping device is used, the fixing and disassembly of the flywheel will be cumbersome and time-consuming, which greatly affects the detection efficiency of the flywheel. Utility Model Content

[0005] The utility model aims to provide an inertia ring dynamic balance detection device to solve the technical problems of complicated fixing and disassembly of flywheels and low detection efficiency of flywheels in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an inertia ring dynamic balancing detection device, comprising a main transmission shaft and a tray for fixing a flywheel, wherein the main transmission shaft is detachably mounted on a rotating platform for providing rotational force, and the tray is detachably mounted on the main transmission shaft, and the tray is in the shape of a stepped truncated cone, and the tray comprises a truncated cone for being sleeved on the inner wall of the annular flywheel and a chassis for supporting the flywheel, wherein the chassis is located below the truncated cone, the chassis coincides with the center of the truncated cone, and the diameter of the chassis is larger than the diameter of the truncated cone, and the chassis is provided with a locating pin for connecting with a hole pin on the flywheel, and the locating pins are multiple, and the multiple locating pins are distributed at equal distances along the circumferential edge of the chassis.

[0007] The principles and advantages of this solution are as follows: in actual application, the tray adopts a stepped truncated cone structure, which can be directly put on the inner wall of the annular flywheel, and connected to the hole pins on the flywheel through multiple positioning pins on the chassis to achieve fast and accurate positioning and fixation. This design greatly simplifies the fixation and removal process of the flywheel and improves the operating efficiency; the multiple positioning pins set on the chassis are distributed at equal distances along the circumferential edge, ensuring the accurate positioning between the flywheel and the tray, so that the flywheel can remain stable during the detection process, improving the accuracy of the detection; the design of the tray can adapt to flywheels of different sizes and specifications, and only needs to replace the tray of the corresponding size, which has strong versatility and adaptability;

[0008] The combined use of the round table and the locating pin fixes the flywheel from both the inside and outside, enhancing the fixing torque. Due to the close fit between the round table and the inner wall of the flywheel and the precise connection of the locating pin, the shaking and deviation of the flywheel during rotation are reduced, thereby reducing the friction and wear between the flywheel and the tray.

[0009] As an improvement, the main transmission shaft includes a top plate, a column and a bottom plate, the top plate and the bottom plate are respectively fixed at the two ends of the column, the bottom plate is connected to the rotating platform, a clamping table is provided in the center of the upper surface of the top plate, and a plurality of fixing holes are provided on the top plate in the circumferential direction of the clamping table, and circular holes corresponding to the clamping table and the fixing holes are respectively penetrated on the table of the tray.

[0010] The beneficial effects of this improvement are: the round hole on the tray stage is matched with the clamping stage and the fixed hole on the top plate, so that the tray can be quickly and accurately installed on the main drive shaft, simplifying the installation process; when disassembling, the tray can be easily removed from the main drive shaft by simply loosening the connecting parts at the fixed hole, which improves the disassembly efficiency; the clamping stage on the top plate cooperates with the round hole on the tray stage to ensure that the flywheel can remain stable when rotating at high speed, reducing shaking and deviation.

[0011] As an improvement, the bottom plate of the main transmission shaft is provided with threaded holes for fixing with screws of the rotating platform, and the threaded holes are multiple and equidistantly distributed around the column; a groove is provided in the center of the lower surface of the bottom plate.

[0012] The beneficial effect of this improvement is that a protrusion that is compatible with the groove is provided on the rotating platform, and the groove of the base plate is buckled with the protrusion of the rotating platform. The relative positions of the base plate and the rotating platform are then rotated, thereby achieving alignment of the threaded hole with the hole position on the rotating platform, which is convenient for quick installation.

[0013] As an improvement, the positioning pin includes a first connecting section for connecting to the chassis pin of the tray and a second connecting section for connecting to the flywheel pin, the diameter of the second connecting section is larger than the diameter of the first connecting section; a hole corresponding to the first connecting section of the positioning pin is provided on the chassis of the tray, and the outer end of the second connecting section gradually decreases in diameter from the inside to the outside.

[0014] The beneficial effect of this improvement is that: the diameter of the second connecting section is larger, and the first connecting section is inserted into the appropriate hole position to ensure that the second connecting section is located outside the tray. The outer end of the second connecting section is designed to gradually reduce the diameter from the inside to the outside, similar to a tapered structure, so that the positioning pin is easier to align and insert when inserted into the flywheel pin hole. At the same time, this design also helps to more easily pull the positioning pin out of the flywheel pin hole during disassembly, improving the convenience of installation and disassembly.

[0015] As an improvement, blind holes are provided at equal distances along the circumference of the cylinder of the main transmission shaft.

[0016] The beneficial effects of this improvement are: it can effectively reduce the amount of material used, thereby achieving the purpose of reducing weight; it can change the moment of inertia of the main drive shaft, thereby affecting its dynamic performance. By rationally designing the number, size and position of the blind holes, the dynamic response of the main drive shaft can be optimized and the overall performance of the equipment can be improved; the blind holes can serve as heat dissipation channels, increase the contact area between the main drive shaft and the outside air, and thus enhance the heat dissipation performance.

[0017] As an improvement, a plurality of penetrating fan-shaped holes are provided on the circular platform of the tray, and the fan-shaped holes surround the circular hole on the circular platform.

[0018] The beneficial effects of this improvement are: the fan-shaped holes can effectively reduce the use of materials without significantly reducing the strength of the tray, thereby achieving the purpose of reducing the weight of the tray. This helps to reduce the weight of the entire device and improve the dynamic performance of the device, such as the response speed of acceleration and deceleration; the fan-shaped holes, as heat dissipation channels, can increase the contact area between the tray and the outside air and improve the heat dissipation efficiency.

[0019] As an improvement, the upper edge of the truncated cone of the tray is in the shape of a slope after edge chamfering.

[0020] The beneficial effect of this improvement is that the inner wall of the flywheel can be easily sleeved outside the truncated table.

[0021] As an improvement, there are three positioning pins.

[0022] The beneficial effect of this improvement is that the combined use of the three positioning pins can ensure that the parts are positioned and fixed more accurately during the assembly process, thereby reducing assembly errors.

[0023] As an improvement, the second connecting section of the positioning pin is cylindrical.

[0024] As an improvement, the second connecting section of the positioning pin is in a diamond shape.

[0025] The beneficial effect of this improvement is that corresponding positioning pins can be selected according to different flywheel models. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0027] Figure 2 It is a structural schematic diagram of the inertia ring dynamic balancing detection device.

[0028] Figure 3 A schematic diagram of the structure of a tray.

[0029] Figure 4 Schematic diagram of the main drive shaft.

[0030] Figure 5 It is a round positioning pin.

[0031] Figure 6 It is a diamond shaped positioning pin.

[0032] Figure 7 for Figure 1 A partial enlarged view of point A in the middle.

[0033] Figure 8 This is the meshing relationship diagram between the output gear and the driven gear. DETAILED DESCRIPTION

[0034] The following is further described in detail through specific implementation methods:

[0035] The figure marks in the drawings of the specification include: main transmission shaft 1, tray 2, chassis 3, truncated cone 4, locating pin 5, flywheel 6, top plate 7, cylinder 8, bottom plate 9, clamping truncated cone 10, fixing hole 11, fan-shaped hole 12, threaded hole 13, extension plate 14, blind hole 15, first connecting section 16, second connecting section 17, bracket 18, screw 19, slider 20, first mounting plate 21, second mounting plate 22, drill bit 23, adjusting rod 24, output gear 25 and driven gear 26.

[0036] Example

[0037] Basically as attached Figure 1 As shown, an inertia ring gravity center balance correction device includes an inertia ring dynamic balance detection device for driving a flywheel 6 to rotate at high speed and detecting the unbalance amount of the flywheel 6 and a gravity center correction mechanism for milling and removing weight from the flywheel 6 according to the unbalance amount;

[0038] As attached Figure 2As shown, the inertia ring dynamic balancing detection device includes a main transmission shaft 1 and a tray 2 for fixing a flywheel 6. The main transmission shaft 1 is detachably mounted on a rotating platform for providing rotational force. The rotating platform is located on a workbench, and the tray 2 is detachably mounted on the main transmission shaft 1.

[0039] As attached Figure 3 As shown, the tray 2 is in the shape of a stepped truncated cone, and the tray 2 includes a truncated cone 4 for being sleeved on the inner wall of the annular flywheel 6 and a chassis 3 for supporting the flywheel 6. The chassis 3 is located below the truncated cone 4, and the center of the chassis 3 coincides with the center of the truncated cone 4. The diameter of the chassis 3 is larger than the diameter of the truncated cone 4. The chassis 3 is provided with positioning pins 5 for connecting with the hole pins on the flywheel 6. There are three positioning pins 5, and the three positioning pins 5 are equidistantly distributed along the circumferential edge of the chassis 3.

[0040] As attached Figure 4 As shown, the main transmission shaft 1 includes a top plate 7, a column 8 and a bottom plate 9. The top plate 7 and the bottom plate 9 are respectively fixed at the two ends of the column 8. The bottom plate 9 is connected to the rotating platform. A clamping truncated platform 10 is provided in the center of the upper surface of the top plate 7. Four fixing holes 11 are provided on the top plate 7 in the circumferential direction of the clamping truncated platform 10. The truncated platform 4 of the tray 2 is respectively penetrated with round holes suitable for the clamping truncated platform 10 and the fixing holes 11. The round hole on the truncated platform 4 of the tray 2 is sleeved on the outside of the clamping truncated platform 10, and the relative positions of the tray 2 and the top plate 7 are rotated so that the fixing holes 11 on the top plate 7 are aligned with the round hole positions on the truncated platform 4 of the tray 2. The round hole and the fixing holes 11 are bolted through the tray 2 and the top plate 7 to fix the two. The round hole on the tray 2 suitable for the fixing holes 11 is a countersunk hole, so that the flywheel 6 can be placed on the tray 2 stably.

[0041] The truncated platform 4 of the tray 2 is provided with four penetrating fan-shaped holes 12 , and the fan-shaped holes 12 surround the circular hole on the truncated platform 4 .

[0042] The bottom plate 9 of the main transmission shaft 1 is provided with threaded holes 13 for screw fixing with the rotating platform. There are four threaded holes 13 and they are equally spaced and distributed around the column 8. A groove is provided in the center of the lower surface of the bottom plate 9. The groove of the bottom plate 9 is cylindrical and is buckled on the rotating platform. The relative positions of the bottom plate 9 and the rotating platform are rotated so that the threaded holes 13 on the bottom plate 9 are aligned with the holes on the rotating platform. The main transmission shaft 1 is installed on the rotating platform through the threaded holes 13 with screws.

[0043] The column 8 of the main transmission shaft 1 is provided with blind holes 15 at equal intervals in the circumferential direction.

[0044] As attached Figure 5 and attached Figure 6As shown, the positioning pin 5 includes a first connecting section 16 for connecting to the chassis 3 of the tray 2 and a second connecting section 17 for connecting to the flywheel 6, and the diameter of the second connecting section 17 is larger than the diameter of the first connecting section 16; the chassis 3 is provided with an extension plate 14 extending outward, and the positioning pin 5 is installed on the extension plate 14, and the extension plate 14 is provided with a hole corresponding to the first connecting section 16 of the positioning pin 5, and the outer end of the second connecting section 17 gradually decreases in diameter from the inside to the outside.

[0045] The second connecting section 17 of the positioning pin 5 is cylindrical or rhombus-shaped; the upper edge of the truncated cone 4 of the tray 2 is in the shape of a slope after edge chamfering.

[0046] Select a locating pin 5 that matches the hole position on the flywheel 6, insert the first connecting section 16 of the locating pin 5 into the hole position on the extension plate 14, and the second connecting section 17 of the locating pin 5 is located outside the tray 2; align the locating pin 5 on the tray 2 with the hole position on the flywheel 6, pass the locating pin 5 through the flywheel 6, and the inner wall of the flywheel 6 is sleeved on the frustum 4 of the tray 2, so that the flywheel 6 is fixed on the inertia ring dynamic balancing detection device.

[0047] As attached Figure 1 As shown, the center of gravity correction mechanism includes a lifting assembly and a milling assembly. The lifting assembly includes a bracket 18, a screw 19, a nut and a lifting motor. The bracket 18 is fixedly installed on the workbench and is located next to the inertia ring dynamic balance detection device. The two ends of the screw 19 are rotatably connected to the bracket 18 through bearings. The screw 19 is threadedly connected to the nut. A slide rail parallel to the screw 19 is also fixedly welded on the bracket 18. The nut is fixedly connected to a slider 20. The slider 20 is slidably connected to the slide rail. The output end of the lifting motor is fixedly connected to the screw 19 to drive the rotation of the screw 19, thereby controlling the nut to move axially along the screw 19 and the slider 20 to move along the slide rail. The milling assembly is fixedly installed on the slider 20. The milling assembly includes a drill bit 23 and a milling motor for driving the drill bit 23 to rotate. The milling motor is fixedly connected to the slider 20, and the output end of the milling motor is fixedly connected to the drill bit 23 to provide power for the rotation of the drill bit 23.

[0048] The milling assembly also includes a first mounting plate 21 and a second mounting plate 22, and the first mounting plate 21 and the second mounting plate 22 are provided with through holes for the drill bit 23 to pass through. The first mounting plate 21 is fixedly connected to the milling motor, and the second mounting plate 22 is located below the first mounting plate 21. An adjusting rod 24 is provided between the first mounting plate 21 and the second mounting plate 22, and the adjusting rod 24 is rotatably connected to the first mounting plate 21 through a bearing, and the adjusting rod 24 is threadedly connected to the second mounting plate 22, and the lower section of the adjusting rod 24 is provided with threads, and the top end of the adjusting rod 24 is connected to an adjusting motor for controlling the rotation of the adjusting rod 24.

[0049] As attached Figure 7 and attached Figure 8 As shown, there are two adjusting rods 24, which are respectively located on both sides of the drill bit 23. The output end of the adjusting motor is fixedly connected with an output gear 25, and the top ends of the two adjusting rods 24 are respectively fixedly connected with driven gears 26, and the output gears 25 are respectively meshed with the two driven gears 26. By controlling the rotation of the adjusting motor, the distance between the first mounting plate 21 and the second rotating plate is controlled, and then the length of the drill bit 23 extending out of the second mounting plate 22 is controlled, so as to control the depth of the drill bit 23 drilling into the flywheel 6.

[0050] A pressure sensor is provided between the first mounting plate 21 and the second mounting plate 22 for monitoring the pressure value therebetween and judging the working condition of the lifting motor at the next moment according to the pressure value, that is, whether the milling assembly continues to move downward.

[0051] The specific implementation process is as follows:

[0052] Place the flywheel 6 horizontally on the tray 2 so that the disc on the tray 2 can be connected to the inner ring of the flywheel 6, and the positioning pin 5 is inserted into the hole on the flywheel 6; fix the flywheel 6, control the rotation of the rotating platform, and drive the flywheel 6 to rotate at high speed by the main transmission shaft 1 and the tray 2. Judge whether the flywheel 6 meets the dynamic balance requirement through the vibration and noise generated during the rotation of the flywheel 6. If it does not meet the dynamic balance requirement, determine the imbalance amount and imbalance distribution through the vibration during rotation; control the rotating platform to stop rotating, and align the area of ​​the flywheel 6 that needs to be milled and deweighted below the drill bit 23 of the center of gravity correction mechanism.

[0053] The drilling depth of the drill bit 23 is calculated according to the imbalance of the flywheel 6, and the adjusting motor is controlled to rotate a corresponding amount, so that the output gear 25 of the adjusting motor drives the two adjusting rods 24 to rotate at the same frequency, thereby realizing the lifting and lowering adjustment of the second mounting plate 22 relative to the first mounting plate 21, and then realizing the distance that the drill bit 23 extends out of the second mounting plate 22 by controlling the imbalance.

[0054] The lifting motor and the milling motor are controlled to rotate, the slider 20 is driven to move downward, and the drill bit 23 contacts the flywheel 6. As the slider 20 continues to move downward, the rotating drill bit 23 punches a hole in the flywheel 6. When the slider 20 drops to a certain height, the second mounting plate 22 contacts the upper surface of the flywheel 6, and a reaction force is generated between the flywheel 6 and the second mounting plate 22, so that the pressure value detected by the pressure sensor between the first mounting plate 21 and the second mounting plate 22 increases. When the measured pressure value is greater than the preset pressure threshold, that is, the flywheel 6 has been rotated into a hole of the required depth, a signal is sent to the lifting motor, causing the lifting motor to reverse and control the slider 20 to move up to the initial position, and the milling motor stops rotating.

[0055] The rotating platform can be controlled to rotate again, the dynamic balance of the flywheel 6 can be detected again, and the flywheel 6 can be corrected again according to the newly measured imbalance until the flywheel 6 meets the dynamic balance requirement.

[0056] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Inertia ring dynamic balancing detection device, characterized in that: It includes a main transmission shaft and a tray for fixing a flywheel, wherein the main transmission shaft is detachably mounted on a rotating platform for providing rotational force, and the tray is detachably mounted on the main transmission shaft, and the tray is in the shape of a stepped frustum, and the tray includes a frustum for sleeved on the inner wall of the annular flywheel and a chassis for supporting the flywheel, wherein the chassis is located below the frustum, the chassis coincides with the center of the frustum, and the diameter of the chassis is larger than the diameter of the frustum, and the chassis is provided with locating pins for connecting with the hole pins on the flywheel, and the locating pins are multiple, and the multiple locating pins are equidistantly distributed along the circumferential edge of the chassis.

2. The inertia ring dynamic balancing detection device according to claim 1 is characterized in that: The main transmission shaft includes a top plate, a column and a bottom plate, the top plate and the bottom plate are respectively fixed at two ends of the column, the bottom plate is connected to the rotating platform, a clamping table is provided in the center of the upper surface of the top plate, a plurality of fixing holes are provided on the top plate in the circumferential direction of the clamping table, and circular holes corresponding to the clamping table and the fixing holes are respectively penetrated on the table of the tray.

3. The inertia ring dynamic balance detection device according to claim 2 is characterized in that: The bottom plate of the main transmission shaft is provided with threaded holes for fixing with screws of the rotating platform, and the threaded holes are multiple and distributed around the column at equal distances; a groove is provided in the center of the lower surface of the bottom plate.

4. The inertia ring dynamic balance detection device according to claim 3 is characterized in that: The positioning pin includes a first connecting section for connecting to the chassis pin of the tray and a second connecting section for connecting to the flywheel pin, the diameter of the second connecting section is larger than the diameter of the first connecting section; a hole corresponding to the first connecting section of the positioning pin is provided on the chassis of the tray, and the outer end of the second connecting section gradually decreases in diameter from the inside to the outside.

5. The inertia ring dynamic balance detection device according to claim 4 is characterized in that: The main transmission shaft is provided with blind holes at equal distances in the circumferential direction of the cylinder.

6. The inertia ring dynamic balance detection device according to claim 5, characterized in that: The circular platform of the tray is provided with a plurality of penetrating fan-shaped holes, and the fan-shaped holes surround the circular hole on the circular platform.

7. The inertia ring dynamic balance detection device according to claim 6, characterized in that: The upper edge of the truncated cone of the tray is in a slope shape after edge chamfering.

8. The inertia ring dynamic balance detection device according to claim 7, characterized in that: There are three positioning pins.

9. The inertia ring dynamic balancing detection device according to claim 8, characterized in that: The second connecting section of the positioning pin is cylindrical.

10. The inertia ring dynamic balance detection device according to claim 8, characterized in that: The second connecting section of the positioning pin is in a diamond shape.

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