Variable-speed main shaft of rotor undercutting machine

Abstract

The utility model provides a rotor undercutting machine variable speed main shaft which comprises a main shaft driving motor, a driving belt, a high and low speed main shaft box, a chuck, a rotor to be maintained and a tailstock which are arranged on a lathe bed, the main shaft driving motor is arranged on one side of the lathe bed, and the high and low speed main shaft is composed of an input shaft, a planetary gear set, a deflector rod and an output shaft. The input shaft is in transmission connection with a main shaft driving motor located on the lathe bed through a driving belt, the output shaft is connected with the chuck, the shifting rod transversely strides across the planetary gear set, one end of the shifting rod is connected with the input shaft, the other end of the shifting rod is connected to the output shaft, and the base is installed on the side, away from the main shaft driving motor, of the lathe bed. The base and the chuck are matched to be used for clamping a rotor to be maintained, the input shaft and the output shaft are switched through left-right push-pull of the shifting rod to be meshed with different gears of the planetary gear set to achieve high-speed and low-speed switching, commutator roundness finishing high-speed rotation and grooving indexing low-speed rotation can be conducted on the same equipment, and integrated design is conducted on the rotor maintenance equipment. Hoisting times are reduced, operation procedures are reduced, and maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a motor rotor commutator maintenance equipment, especially a variable speed main shaft of motor rotor commutator maintenance equipment. BACKGROUND

[0002] The statements in this section merely provide background information related to the utility model and do not necessarily constitute prior art.

[0003] The commutator is the main component of the DC motor, and the state of the commutator plays a crucial role in the operation of the DC motor. After a period of use, the copper sheet spacing of the commutator of the large motor rotor decreases, causing short circuit risk, oxidation of the copper sheet surface, and poor contact with the carbon brush, which is prone to sparking and efficiency decline. At this time, the commutator copper sheet needs to be trimmed, and the roundness trimming and slotting of the commutator are required. Both roundness trimming and slotting require spindle drive, but the roundness trimming and slotting have a large difference in speed, and cannot be completed on the same equipment. At least two devices are required to lift and transport the rotor for movement, the operation process is complex, and the maintenance efficiency is low. SUMMARY

[0004] In view of the above defects or improvement needs of the prior art, the utility model provides a rotor lower engraving machine variable speed main shaft, which solves the problem of large rotor roundness trimming high-speed rotation and slotting low-speed rotation on the same equipment, integrates the rotor maintenance equipment, reduces the lifting frequency, reduces the operation process, and improves the maintenance efficiency.

[0005] The utility model provides a rotor lower engraving machine variable speed main shaft, which includes a main shaft drive motor, a drive belt, a high-low speed main shaft box, a chuck, a rotor to be maintained and a tailstock arranged on a bed, the main shaft drive motor is arranged on one side of the bed to provide power for the rotation of the main shaft, the high-low speed main shaft is composed of an input shaft, a planetary gear set, a lever and an output shaft, the input shaft is connected to the main shaft drive motor on the bed through the drive belt, the output shaft is fixedly connected to the chuck, the lever crosses the planetary gear set, one end of the lever is connected to the input shaft, and the other end of the lever is connected to the output shaft, and the tailstock is installed on the side of the bed away from the main shaft drive motor, and the tailstock and the chuck are used for clamping the rotor to be maintained.

[0006] Further, the bed is provided with a sliding rail, the tailstock is movably connected to the sliding rail, and the tailstock can move horizontally along the bed.

[0007] Further, the chuck is connected to the output shaft of the high-low speed main shaft box.

[0008] Further, the planetary gear set comprises a sun gear, a planetary gear system, a planet carrier and an outer gear ring; the sun gear is located at the center of the planetary gear set, the planetary gear system comprises a plurality of planetary gears, the planetary gears are spaced apart and rotationally connected with the planet carrier, and the outer gear ring is arranged outside the planetary gears, and the planetary gears are engaged with the sun gear and the outer gear ring at the same time.

[0009] Further, the shifting lever comprises a horizontal rod, a first vertical rod, a second vertical rod and a third vertical rod, the first vertical rod is arranged at the middle position of the horizontal rod, the horizontal rod is transversely arranged across the planetary gear set, the second vertical rod and the third vertical rod are respectively arranged on the two sides of the horizontal rod, the second vertical rod is movably connected to the side of the input shaft away from the planetary gear set, the third vertical rod is movably connected to the side of the output shaft away from the planetary gear set, the second vertical rod can move left and right on the input shaft, and the third vertical rod can move left and right on the output shaft.

[0010] Further, the first transmission gear is movably arranged between the output shaft (i.e. the first vertical rod) and the planetary gear set, and the second transmission gear is arranged outside the input shaft (i.e. the second vertical rod), the first transmission gear can move left and right on the input shaft, and the second transmission gear can move left and right on the output shaft.

[0011] Further, the high-low speed spindle box further comprises a main transmission shaft, the main transmission shaft is arranged below the input shaft and the output shaft, the main transmission shaft passes through the center of the planet carrier, and the first gear and the second gear are arranged on the two sides of the main transmission shaft.

[0012] Further, the first shaft sleeve and the second shaft sleeve are arranged outside the main transmission shaft, and the first shaft sleeve and the second shaft sleeve are connected with the planet carrier.

[0013] Further, the first shaft sleeve is provided with a third gear at the position close to the first gear, and the second shaft sleeve is provided with a fourth gear at the position close to the first gear.

[0014] Further, the first gear and the third gear can be engaged with the first transmission gear for transmission connection, and the second gear and the fourth gear can be engaged with the second transmission gear for transmission connection.

[0015] The above one or more technical schemes have the following beneficial effects:

[0016] The utility model discloses can according to commutator actual processing production requirement adjustment realization high speed and low speed switching, according to the rotor maintenance procedure, when needing to roundness modification to commutator, high low speed spindle box is adjusted to high speed block through the gear lever of stop position at this moment, drives the rotor to be maintained high -speed rotation through chuck, and the commutator turning is carried out, when needing to be engraved groove to commutator cloud mica groove after roundness modification is completed, high low speed spindle box is adjusted to low speed block through the gear lever of stop position at this moment, drives the rotor to be maintained low -speed rotation through chuck, and the groove graduation is completed, so high -speed drive and groove graduation low -speed drive of commutator roundness modification can be realized on the same equipment.

[0017] The advantages of the additional aspects of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of this utility model form part of the utility model and are used to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.

[0019] Figure 1 It is motor rotor commutator maintenance equipment device structure schematic view of the utility model;

[0020] Figure 2 It is the main transmission shaft and shaft sleeve position and structure schematic view of motor high low speed spindle box of the utility model;

[0021] Figure 3 It is high speed schematic view of high low speed spindle box of the utility model;

[0022] Figure 4 It is low speed schematic view of high low speed spindle box of the utility model;

[0023] Figure 5 It is planetary gear set structure schematic view of the utility model;

[0024] Figure 6 It is first gear and third gear position relation schematic view of the utility model;

[0025] Figure 7 It is first gear and fourth gear position relation schematic view of the utility model;

[0026] In the figure: 1 main shaft driving motor, 2 driving belt, 3 high-low speed main shaft box, 31 input shaft, 32 planetary gear set, 33 shifting lever, 33-1 horizontal rod, 33-2 first vertical rod, 33-3 second vertical rod, 33-4 third vertical rod, 34 output shaft, 4 chuck, 5 rotor to be repaired, 6 tailstock, 7 bed, 8 sun gear, 9 planet carrier, 10 outer gear ring, 11 planetary gear, 12 first transmission gear, 13 second transmission gear, 14 main transmission shaft, 15 first gear, 16 second gear, 17 first shaft sleeve, 18 second shaft sleeve, 19 third gear, 20 fourth gear, 21 sliding rail. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed description is exemplary in nature and is intended to provide further description of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0028] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0029] As shown in Figures 1 to 7 The present embodiment provides a variable speed main shaft of a rotor undercutting machine, which comprises a main shaft driving motor 1, a driving belt 2, a high-low speed main shaft box 3, a chuck 4, a rotor to be repaired 5 and a tailstock 6 arranged on a bed 7. The main shaft driving motor 1 is arranged on one side of the bed 7, and the main shaft driving motor serves as a power supply unit to provide power for the rotation of the entire variable speed main shaft. The high-low speed main shaft 3 is composed of an input shaft 31, a planetary gear set 32, a shifting lever 33 and an output shaft 34. The input shaft 31 of the high-low speed main shaft box 3 is connected in transmission with the main shaft driving motor 1 arranged on the bed 7 through the driving belt 2 on the side away from the planetary gear set 32. The output shaft 34 is connected with the chuck 4 on the side away from the planetary gear set 32. The shifting lever 33 crosses the planetary gear set 32 horizontally, one end of which is connected with the input shaft and the other end of which is connected with the output shaft 34.

[0030] The dialing rod 33 comprises a horizontal rod 33-1, a first vertical rod 33-2, a second vertical rod 33-3 and a third vertical rod 33-4, the horizontal rod 33-1 is transversely across the planetary gear set 32, the first vertical rod 33-3 and the second vertical rod 33-4 are respectively connected on both sides of the horizontal rod 33-1, the vertical rod 33-2 is arranged at the middle position of the horizontal rod, specifically, the vertical rod is vertically arranged at the middle position of the horizontal rod, the first vertical rod, the second vertical rod and the third vertical rod are at a 90-degree angle with the horizontal rod, the lower side of the second vertical rod is movably connected to the side of the input shaft away from the planetary gear set, and the lower side of the third vertical rod is movably connected to the side of the output shaft away from the planetary gear set 32, since the second vertical rod and the third vertical rod are movably connected to the shaft on the side where they are respectively arranged, therefore, the related technicians can pull the first vertical rod to the left and right sides according to the actual processing requirements, and move the second vertical rod and the third vertical rod through the first vertical rod, so that the first vertical rod can move left and right on the input shaft, and the first vertical rod can move left and right on the output shaft.

[0031] The planetary gear set 32 comprises a sun gear 8, a planetary gear system, a planet carrier 9 and an outer gear ring 10; the sun gear 8 is located at the center of the planetary gear set, the planetary gear system comprises a plurality of planetary gears 11, the planetary gears 11 are spaced and rotatably connected with the planet carrier 9, the outer gear ring 10 is arranged outside the planetary gears 11, and the outer gear ring 10 is fixed with the high-low speed spindle box 3 shell, each planetary gear is engaged with the outer gear ring, and the planetary gear is engaged with the sun gear and the outer gear ring at the same time, in this embodiment, the planet carrier 9 uniformly distributes three planetary gears 11 in the circumferential direction, the planetary gears are triangularly surrounded around the sun gear, and the planetary gears 11 are connected with the planet carrier 9 through bearings.

[0032] The input shaft 34, i.e. the second vertical rod 33-3, and the planetary gear set are movably provided with a first transmission gear 12, and the output shaft, i.e. the third vertical rod 33-4, is provided with a second transmission gear 13 outside, since the first transmission gear 12 is movably connected with the input shaft 31, and the second transmission gear 13 is also movably connected with the output shaft 34, when the related technicians dial the first vertical rod to the left / right direction according to the actual processing requirements, the movement of the second vertical rod and the third vertical rod will be moved in the same direction as the first vertical rod, so as to leave a movable space for the two transmission gears, i.e. the first transmission gear and the second transmission gear, so that the first transmission gear 12 can move left and right on the input shaft, and the second transmission gear 13 can move left and right on the output shaft.

[0033] The high-low speed spindle box further comprises a main transmission shaft 14 located at the lower side of the input shaft 31 and the output shaft 34, the main transmission shaft 14 passes through the center of the planet carrier 9, and the two sides of the main transmission shaft away from the planet carrier are respectively provided with a first gear 15 and a second gear 16, the inner side of the first gear 15 is provided with a first shaft sleeve 17, and the inner side of the second gear 16 is provided with a second shaft sleeve 18, the first shaft sleeve 17 and the second shaft sleeve 18 are both sleeved on the outer side of the main transmission shaft 1, bearings are installed between the inner sides of the first shaft sleeve and the second shaft sleeve and the main transmission shaft, and the first shaft sleeve and the second shaft sleeve are both connected with the planet carrier on the respective side; in addition, the first shaft sleeve is provided with a third gear 19 at the position close to the first gear 15, the third gear 19 is located at the right side of the first gear 15 and is closer to the planetary gear set than the first gear, the second shaft sleeve is provided with a fourth gear 20 at the position close to the first gear 15, the fourth gear 20 is located at the left side of the second gear 16 and is closer to the planetary gear set than the second gear, the first gear and the third gear are located at the left side of the planetary gear set and can be in meshing transmission connection with the first transmission gear, and the second gear and the fourth gear are located at the right side of the planetary gear set and can also be in meshing transmission connection with the second transmission gear.

[0034] When the commutator is first rounded, since the rounding needs to be performed under the condition that the main shaft rotates at high speed, at this time, the first vertical rod needs to be pushed to the right side, and the second vertical rod and the third vertical rod will move to the right side along with the first vertical rod, so that the first transmission gear is in meshing transmission connection with the third gear located on the first shaft sleeve, and the second transmission gear is in meshing transmission connection with the second gear located on the main transmission shaft, since the first shaft sleeve is connected with the planetary gear set, i.e., a plurality of planetary gears through the spline, and the main transmission shaft passes through the center of the planet carrier, when the main shaft driving motor is powered on, the power of the main shaft driving motor will be transmitted to the input shaft of the high-low speed spindle box through the driving belt, and the power will drive the first transmission gear, the input shaft and the first gear to rotate, so as to drive the first shaft sleeve to rotate, the first shaft sleeve drives the planet carrier to rotate, and the planet carrier drives the planetary gear to realize revolution, since the outer gear ring is fixed to the high-low speed spindle box shell, the planetary gear drives the sun gear to rotate at the same direction and at a higher speed through the gear meshing, and the sun gear drives the output shaft to rotate through the second gear and the second transmission gear, so that the high-low speed spindle box 3 is adjusted to the high speed gear through the lever, and the rotor 5 to be repaired is driven to rotate at high speed through the chuck 4.

[0035] When the commutator mica groove needs to be engraved, the large rotor commutator needs to have extremely low speed for indexing during the commutator mica groove engraving stage, at this time, the first vertical rod is pushed to the left by the related operating personnel, and the second vertical rod and the third vertical rod are moved to the left together with the first vertical rod, in this case, the first transmission gear is engaged with the first gear on the main transmission shaft, and the second transmission gear is engaged with the fourth gear on the second shaft sleeve, when the main shaft driving motor is powered on, the power of the main shaft driving motor is transmitted to the input shaft of the high-low speed main shaft box through the driving belt, and the power drives the first transmission gear, the input shaft and the first gear to rotate, so as to drive the main transmission shaft to rotate, the main transmission shaft is connected with the sun gear, so that the sun gear moves together with the main transmission shaft, so as to drive the several planetary gears to counter-rotate, since the outer gear ring is fixed with the high-low speed main shaft box body shell, the planetary gears drive the second shaft sleeve to rotate in the process of rotation, the second shaft sleeve drives the output shaft to rotate through the fourth gear and the second transmission gear in the process of rotation, so that the high-low speed main shaft box is adjusted to the low speed gear through the lever, and the rotor to be repaired 5 is driven to rotate at low speed through the chuck 4.

[0036] The tail seat is installed on the side of the bed body away from the main shaft driving motor, and the bed body is provided with a sliding rail 21, the left side starting point of the sliding rail 21 is located near the chuck, and the right side extends to the side of the bed body away from the chuck, the sliding rail 21 is a certain distance away from the chuck and the rotor to be repaired in the vertical direction, and the tail seat is provided with a sliding seat at the lower part, and the sliding seat is movably connected with the sliding rail, under the operation of the related operating personnel, the tail seat can slide left and right along the sliding rail, and in the embodiment, the tail seat can be used in cooperation with the chuck to clamp the rotor to be repaired in the middle, so as to realize the clamping and fixing of the rotor to be repaired.

[0037] The working principle and use process of the present application are as follows:

[0038] 1. The related operating personnel pushes the tail seat 6 in the left / right direction according to the size of the rotor to be repaired 5, and clamps the rotor to be repaired 5 in the middle through the tail seat 6 and the chuck 4 on the left and right sides, so as to realize the fixing of the rotor to be repaired, and after the rotor to be repaired is installed, the tail seat position is fixed, and the commutator is first modified according to the rotor repair process.

[0039] 2、When the roundness needs to be trimmed, the operator will move the dial lever 33 to the right, the main shaft drive motor 1 will transmit power to the input shaft 31 of the high-low speed spindle box 3 through the driving belt 2, through the transmission relationship of the first transmission gear 12 and the third gear 19, so as to drive the first shaft sleeve 17 to rotate, the first shaft sleeve 17 drives the planetary carrier 9 to rotate, the planetary carrier 9 drives the several planetary gears 11 to revolve, since the outer gear ring 10 is fixed with the high-low speed spindle box 3 box body shell, the planetary gears 11 drive the sun gear 8 to realize the same direction speed-up rotation of the input power through the gear meshing, the sun gear 8 is followed by the second gear 16, the second transmission gear 13 to drive the output shaft 34 to rotate, so that the high-low speed spindle box is adjusted to the high speed gear through the dial lever, and the rotor to be repaired is rotated at high speed through the chuck 4.

[0040] 3、After the roundness trimming is completed, that is, the mica groove is engraved, the operator will move the dial lever 33 to the left, the main shaft drive motor will transmit power to the input shaft 31 of the high-low speed spindle box through the driving belt, through the transmission relationship of the first transmission gear 12 and the first gear 15, so as to drive the main transmission shaft 14 to rotate, the main transmission shaft 14 will drive the sun gear 8 to rotate in the process of rotating, the sun gear 8 will drive the several planetary gears 11 to revolve in the opposite direction, since the outer gear ring 10 is fixed with the high-low speed spindle box 3 box body shell, the planetary gears 11 will drive the second shaft sleeve 18 to rotate, the second shaft sleeve 18 drives the output shaft to rotate through the fourth gear 21 and the second transmission gear 13, so that the high-low speed spindle box 3 is adjusted to the low speed gear through the dial lever 33, the rotor to be repaired is rotated at low speed through the chuck 4, and the groove engraving is completed.

[0041] Although the specific embodiments of the utility model have been described in combination with the drawings, it is not a limitation on the protection scope of the utility model, and those skilled in the art should understand that various modifications or deformations made by those skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A variable speed spindle for a rotor undercutting machine, characterized by, The utility model discloses a rotor lower line machine variable speed spindle, including the main shaft drive motor, drive belt, high -low speed main shaft box, chuck, the rotor to be maintained and tailstock that are arranged in the lathe bed, the main shaft drive motor is arranged in one side of lathe bed, and the power is provided for the rotation of main shaft, the high -low speed main shaft is by input shaft, planetary gear set, pole lever, output shaft, the input shaft is driven through drive belt with the main shaft drive motor on lathe bed and is connected on the side far away from planetary gear set, the output shaft is connected with chuck on the side far away from planetary gear set, the pole lever is transversely across planetary gear set, and one end is connected with input shaft, and the other end is connected on output shaft, and the tailstock is installed on the side far away from main shaft drive motor of lathe bed, and tailstock is used with chuck for the clamping of the rotor to be maintained.

2. A variable speed spindle for a rotor undercutting machine as defined in claim 1, wherein, The lathe bed is provided with a sliding rail, and the lower part of the tailstock is movably connected with the sliding rail.

3. A variable speed spindle for a rotor undercutting machine as defined in claim 1, wherein, The chuck is connected with the output shaft of the high-low speed spindle box, the tailstock is installed on the side far away from the main shaft drive motor of the lathe bed, and the tailstock is used with the chuck for clamping the rotor to be maintained.

4. The rotor lower line machine variable speed spindle according to claim 1, wherein, The planetary gear set comprises a sun gear, a planetary gear system, a planet carrier and an outer gear ring; the sun gear is located at the center of the planetary gear set, the planetary gear system comprises a plurality of planetary gears, the planetary gears are spaced apart and rotatably connected with the planet carrier, the outer side of the planetary gear is provided with the outer gear ring, and the planetary gears are simultaneously meshed with the sun gear and the outer gear ring.

5. A variable speed spindle for a rotor undercutting machine as defined in claim 1 wherein, The pole lever comprises a horizontal rod, a first vertical rod, a second vertical rod and a third vertical rod, the first vertical rod is arranged at the middle position of the horizontal rod, the horizontal rod is transversely across the planetary gear set, the second vertical rod and the third vertical rod are respectively connected on the two sides of the horizontal rod, the lower side of the second vertical rod is movably connected with the side far away from the planetary gear set of the input shaft, the lower side of the third vertical rod is movably connected with the side far away from the planetary gear set of the output shaft, the second vertical rod can move left and right on the input shaft, and the third vertical rod can move left and right on the output shaft.

6. A variable speed spindle for a rotor undercutting machine as defined in claim 5 wherein, The output shaft, i.e. the first vertical rod, is movably provided with a first transmission gear between the planetary gear set, the input shaft, i.e. the second vertical rod, is provided with a second transmission gear on the outer side, the first transmission gear can move left and right on the input shaft, and the second transmission gear can move left and right on the output shaft.

7. A variable speed spindle for a rotor undercutting machine as defined in claim 1 wherein, The high-low speed spindle box further comprises a main transmission shaft, the main transmission shaft is located on the lower side of the input shaft and the output shaft, the main transmission shaft passes through the center of the planet carrier, and the main transmission shaft is provided with a first gear and a second gear on the two sides.

8. A variable speed spindle for a rotor undercutting machine as defined in claim 7, wherein, The first gear is provided with a first shaft sleeve on the inner side, the second gear is provided with a second shaft sleeve on the inner side, the first shaft sleeve and the second shaft sleeve are both sleeved on the outer side of the main transmission shaft, and the first shaft sleeve and the second shaft sleeve are both connected with the planet carrier.

9. A variable speed spindle for a rotor undercutting machine as defined in claim 8 wherein, The first shaft sleeve is provided with a third gear at the position close to the first gear, and the second shaft sleeve is provided with a fourth gear at the position close to the first gear.

10. A variable speed spindle for a rotor undercutting machine as defined in claim 8 wherein, The first gear and the third gear can be meshed and transmission-connected with the first transmission gear, and the second gear and the fourth gear can be meshed and transmission-connected with the second transmission gear.

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