Gear grinding device and gear grinding method for planetary gear assembly

Abstract

The present invention discloses a gear grinding device and a gear grinding method for a planetary gear assembly, comprising: an outer box; a box door, which is arranged at the middle of the front side of the outer box; a water cooling mechanism, which is arranged at the top of the inner cavity of the outer box; a gear grinding mechanism, which is arranged at the bottom of the inner cavity of the outer box; and a PLC controller, which is arranged at the top of the right side of the outer box. The device can automatically grind the gears of the planetary gear assembly, thereby not only having high working efficiency and high precision, but also reducing the labor intensity of the staff, and at the same time, the structure is relatively simple, the repair and maintenance process is relatively convenient, the cost is low, and it is easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of planetary gears, and in particular to a gear grinding device and a gear grinding method for a planetary gear assembly. Background Art

[0002] Planetary gears refer to a gear system that can not only rotate around its own axis like fixed axis gears, but also rotate around the axis of other gears along with the planet carrier. The rotation around its own axis is called "rotation", and the rotation around the axis of other gears is called "revolution", just like the planets in the solar system, hence the name;

[0003] The process of grinding the gear teeth of a gear using a gear grinding machine is called gear grinding. Gear processing machines that use grinding wheels as grinding tools to process the tooth surfaces of cylindrical gears or certain gear processing tools are mainly used to eliminate deformation after heat treatment and improve gear accuracy. The accuracy of the teeth after grinding can reach 6-3 levels or higher.

[0004] The gear grinding devices of traditional planetary gear assemblies are divided into two types: manual gear grinding and automatic gear grinding. However, manual gear grinding not only has low work efficiency and increases the labor intensity of the staff, but also has low precision and is very easy to cause gear damage during the gear grinding process, resulting in property waste. In addition, the structure of traditional automatic gear grinding devices is relatively complex, which makes it more troublesome to repair and maintain them. In addition, traditional automatic gear grinding devices are expensive, and some small and medium-sized enterprises find it difficult to afford the purchase and maintenance costs, making them inconvenient to use. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art, such as low working efficiency and high cost, and to propose a gear grinding device and a gear grinding method for a planetary gear assembly.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A gear grinding device and a gear grinding method for a planetary gear assembly, comprising: an outer box; a box door, the box door is arranged at the middle of the front side of the outer box; a water cooling mechanism, the water cooling mechanism is arranged at the top end of the inner cavity of the outer box; a gear grinding mechanism, the gear grinding mechanism is arranged at the bottom end of the inner cavity of the outer box; a PLC controller, the PLC controller is arranged at the top right side of the outer box.

[0008] Furthermore, the water cooling mechanism includes: a mounting frame, which is arranged at the top right side of the outer box; a first motor, which is screwed to the inner cavity of the mounting frame, and the first motor is electrically connected to the PLC controller; a screw, the right end of the screw is locked at the output end of the first motor through a coupling, and the left end of the screw is rotatably arranged at the top left side of the inner cavity of the outer box through a bearing, and the thread of the outer wall of the screw is symmetrical about the center point of the outer box; a guide rod, the left and right ends of the guide rod are respectively arranged at the top left and right sides of the inner cavity of the outer box; a moving block, the number of the moving blocks is two, the top ends of the two moving blocks are respectively slidably sleeved on the left and right sides of the outer wall of the guide rod, and the middle parts of the two moving blocks are respectively screwed to the left and right sides of the outer wall of the screw; a connecting rod, the top end of the connecting rod is rotatably arranged at the bottom end of the moving block through a pin shaft.

[0009] Furthermore, the bottom end of the connecting rod is also provided with: a water tank, the middle part of the top end of the water tank is rotatably arranged at the bottom ends of the two connecting rods through a pin shaft, and a water inlet is opened on the rear side of the water tank; a connecting plate, the top end of the connecting plate is arranged at the middle part of the bottom end of the water tank; a water pump, the water pump is locked at the middle part of the bottom end of the water tank through a coupling, and the water pump and the PLC controller are electrically connected; a water inlet pipe, one end of the water inlet pipe is arranged at the water inlet of the water pump, and the other end of the water inlet pipe extends into the inner cavity of the water tank; a hard drain pipe, one end of the hard drain pipe is arranged at the drain outlet of the water pump; a solenoid valve, the solenoid valve is arranged at the hard drain The outer wall of the pipe, the solenoid valve and the PLC controller are electrically connected; a nozzle, the nozzle is arranged at the bottom end of the hard drainage pipe, and the inner cavity of the nozzle is connected to the inner cavity of the hard drainage pipe; a connecting rod, the top end of the connecting rod is arranged in the middle of the bottom end of the nozzle, and a positioning groove is opened at the bottom end of the connecting rod; a second limit block, the number of the second limit blocks is two, and the two second limit blocks are respectively arranged in the middle of the left and right sides of the water tank; a limit rod, the number of the limit rod is two, and the two limit rods are respectively arranged at the top of the left and right sides of the inner cavity of the outer box, and the limit rod can be slidably adapted to be inserted into the inner cavity of the second limit block.

[0010] Furthermore, the outer wall of the connecting rod is also provided with: an expansion sleeve, which is sleeved on the middle part of the outer wall of the connecting rod; and a grinding gear, which is sleeved on the outer wall of the expansion sleeve.

[0011] Furthermore, the gear grinding mechanism includes: a steel water pipe, the bottom end of which is arranged at the middle of the bottom end of the inner cavity of the outer box, and the bottom end of the steel water pipe extends out of the bottom end of the outer box; a soft water pipe, the top end of which is arranged at the bottom end of the steel water pipe, and the inner cavity of the soft water pipe is connected to the inner cavity of the steel water pipe; a water tank, the middle of the bottom end of the water tank is arranged at the top end of the steel water pipe, and the inner cavity of the steel water pipe is connected to the inner cavity of the water tank; a positioning column, which is arranged at the middle of the top end of the water tank, and the positioning column can be slidably and rotatably adapted to be inserted into the inner cavity of the positioning tank.

[0012] Furthermore, the gear grinding mechanism also includes: a first rotating rod, the bottom end of the first rotating rod is rotatably arranged on the bottom end of the inner cavity of the outer box through a bearing; a first gear, the first gear is sleeved on the outer wall of the first rotating rod and locked by a top screw; a second motor, the second motor is screwed to the bottom end of the inner cavity of the outer box, the top end of the first rotating rod is locked to the output end of the second motor through a coupling, and the second motor is electrically connected to the PLC controller; a second gear, the second gear is rotatably sleeved on the outer wall of the steel water pipe through a bearing, and the second gear is meshed with the first gear; a sleeve, the sleeve is rotatably sleeved on the outer wall of the steel water pipe, the bottom end of the sleeve is arranged on the top end of the second gear, and the inner cavity of the sleeve is provided with a plurality of limit grooves equidistantly from top to bottom along the circumferential direction; a telescopic tube, the telescopic tube is slidably and rotatably sleeved on the outer wall of the steel water pipe, The bottom end of the outer wall of the telescopic tube is adapted to be inserted into the inner cavity of the sleeve; a limit block, the number of the limit blocks is several, and the limit blocks are respectively arranged on the outer wall of the telescopic tube at equal intervals along the circumferential direction, and the limit blocks are adapted to be slidably inserted into the inner cavity of the limit groove; a gear ring, the gear ring is arranged at the top end of the telescopic tube, and the gear ring is rotatably and slidably sleeved on the outer wall of the steel water pipe; a third motor, the third motor is screwed to the middle part of the inner cavity of the outer box, and the third motor is electrically connected to the PLC controller; a second rotating rod, one end of the second rotating rod is locked to the output end of the third motor through a coupling; a third gear, the third gear is sleeved on the outer wall of the second rotating rod and locked by a top screw, and the third gear and the gear ring are meshed; a turntable, the middle part of the bottom end of the turntable is arranged at the top end of the gear ring, and the turntable is rotatably and slidably sleeved on the outer wall of the steel water pipe.

[0013] Furthermore, the top of the turntable is also provided with: a support frame, which is arranged at the top of the turntable; a hydraulic cylinder, which is arranged at the top of the support frame, and the hydraulic cylinder is electrically connected to the PLC controller; a telescopic rod, which can be slidably and adaptively inserted into the inner cavity of the support frame; a mounting block, which is arranged at the inner end of the telescopic rod; an electric grinding wheel, which is arranged at the inner end of the mounting block, and the electric grinding wheel is electrically connected to the PLC controller.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention can fix the grinding gear on the outer wall of the connecting rod by means of an expansion sleeve, and use a PLC controller to control the start and stop of the first motor, the water pump, the solenoid valve, the second motor, the third motor, the hydraulic cylinder and the electric grinding wheel;

[0016] (2) The present invention can drive the grinding gear to move up and down through the water tank and the connecting rod by the cooperation among the first motor, the screw rod, the guide rod, the moving block and the connecting rod. The cooling water in the inner cavity of the water tank can be pumped out and sprayed by the cooperation among the water pump, the water inlet pipe, the hard drain pipe and the nozzle, thereby cooling the grinding gear;

[0017] (3) The present invention can receive cooling waste water through the water tank and discharge the waste water through the steel water pipe and the soft water pipe. The connection rod can be supported by the cooperation between the positioning column and the positioning groove, so that the gear grinding is more stable;

[0018] (4) The present invention drives the electric grinding wheel to move by pushing the mounting block through the hydraulic cylinder, thereby grinding the gears of different diameters. The cooperation among the second motor, the first rotating rod, the first gear and the second gear can be used to drive the support frame and the electric grinding wheel to rotate through the sleeve, the telescopic tube gear ring and the turntable, thereby grinding the gears in the circumferential direction. The cooperation among the third motor, the third gear and the gear ring can be used to drive the support frame and the electric grinding wheel to move up and down through the turntable, thereby grinding the gears.

[0019] (5) The device can automatically grind the gears of the planetary gear assembly, thereby not only having high work efficiency and high precision, but also reducing the labor intensity of the staff. At the same time, the structure is relatively simple, the repair and maintenance process is relatively convenient, the cost is low, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 An exploded view of the present invention;

[0023] Figure 3 This is an exploded view of the water cooling mechanism;

[0024] Figure 4 is a structural schematic diagram of the positioning groove;

[0025] Figure 5 It is an enlarged view of point A of the present invention;

[0026] Figure 6 It is an enlarged view of B of the present invention;

[0027] Figure 7 It is an enlarged view of point C of the present invention;

[0028] Figure 8 It is an enlarged view of D of the present invention;

[0029] Fig. 9 It is an enlarged view of location E of the present invention.

[0030] The parts represented by the numbers in the figure are listed as follows: 1. Outer box, 2. Box door, 3. Water cooling mechanism, 31. Mounting frame, 32. First motor, 33. Screw, 34. Guide rod, 35. Moving block, 36. Connecting rod, 37. Water tank, 38. Connecting plate, 39. Water pump, 310. Water inlet pipe, 311. Hard drain pipe, 312. Solenoid valve, 313. Sprinkler, 314. Connecting rod, 315. Positioning groove, 316. Second limit block, 317. Limit rod, 4. Gear grinding mechanism, 41. Steel water pipe, 42. Soft water pipe , 43, water tank, 44, positioning column, 45, first rotating rod, 46, first gear, 47, second motor, 48, second gear, 49, sleeve, 410, limit groove, 411, telescopic tube, 412, limit block, 413, gear ring, 414, third motor, 415, second rotating rod, 416, third gear, 417, turntable, 418, support frame, 419, hydraulic cylinder, 420, telescopic rod, 421, mounting block, 422, electric grinding wheel, 5, expansion sleeve, 6, grinding gear, 7, PLC controller. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Reference Figure 1-9 , a gear grinding device and a gear grinding method for a planetary gear assembly, comprising: an outer box 1, a box door 2, a water cooling mechanism 3, a gear grinding mechanism 4 and a PLC controller 7, the box door 2 is arranged in the middle of the front side of the outer box 1, the water cooling mechanism 3 is arranged at the top of the inner cavity of the outer box 1, the water cooling mechanism 3 is used to cool the gear being ground, and wash away the impurities ground off to prevent the impurities from affecting the grinding effect, the gear grinding mechanism 4 is arranged at the bottom of the inner cavity of the outer box 1, the gear grinding mechanism 4 is used to grind the gear 6, the PLC controller 7 is arranged at the top right side of the outer box 1, the PLC controller 7 is a prior art, and no further description is given here, the PLC controller 7 is used to control the start and stop of the first motor 32, the water pump 39, the solenoid valve 312, the second motor 47, the third motor 414, the hydraulic cylinder 419 and the electric grinding wheel 422.

[0034] Specifically, the water cooling mechanism 3 includes: a mounting frame 31, a first motor 32, a screw 33, a guide rod 34, a moving block 35, a connecting rod 36, a water tank 37, a connecting plate 38, a water pump 39, a water inlet pipe 310, a hard drain pipe 311, a solenoid valve 312, a nozzle 313, a connecting rod 314, a positioning groove 315, a second limit block 316 and a limit rod 317, a mounting frame 31, the mounting frame 31 is arranged at the top right side of the outer box 1, the mounting frame 31 is used to fix the first motor 32, the first motor 32 is screwed to the inner cavity of the mounting frame 31, the first motor 32 is electrically connected to the PLC controller 7, the first motor 32 is a prior art, the first motor 32 is a servo motor, and no further description is given here. The first motor 32 is used here to drive the screw 33 to enter The guide rod 34 is arranged at the top of the left side of the inner cavity of the outer box 1, and the guide rod 34 is arranged at the top of the left side of the inner cavity of the outer box 1. The guide rod 34 is used to limit the moving block 35. There are two moving blocks 35. The tops of the two moving blocks 35 are slidably connected to the left and right sides of the outer wall of the guide rod 34, and the middle parts of the two moving blocks 35 are screwed to the left and right sides of the outer wall of the screw 33. The moving block 35 is used to drive the connecting rod 36 to move. The top of the connecting rod 36 is rotatably arranged at the top of the left side of the inner cavity of the outer box 1 through a pin shaft. At the bottom end of the movable block 35, the connecting rod 36 is used to pull the water tank 37. The middle of the top end of the water tank 37 is rotatably arranged at the bottom ends of the two connecting rods 36 through a pin shaft. A water inlet is opened on the rear side of the water tank 37. The water tank 37 is used to store cooling water. The top end of the connecting plate 38 is arranged at the middle of the bottom end of the water tank 37. The water pump 39 is locked at the middle of the bottom end of the water tank 37 through a coupling. The water pump 39 and the PLC controller 7 are electrically connected. The water pump 39 is a prior art and will not be described in detail here. The water pump 39 is used here to pump water out of the inner cavity of the water tank 37. One end of the water inlet pipe 310 is arranged at the water inlet of the water pump 39, and the other end of the water inlet pipe 310 extends into the inner cavity of the water tank 37. One end of the hard drain pipe 311 is arranged at the drain outlet of the water pump 39. The solenoid valve 3 12 is arranged on the outer wall of the hard drainage pipe 311, the solenoid valve 312 is electrically connected to the PLC controller 7, the solenoid valve 312 is a prior art and will not be described in detail here, the solenoid valve 312 is used to control the connection and closure of the inner cavity of the hard drainage pipe 311, the nozzle 313 is arranged at the bottom end of the hard drainage pipe 311, the inner cavity of the nozzle 313 is connected to the inner cavity of the hard drainage pipe 311, the nozzle 313 is used to spray the water in the inner cavity of the water tank 37, the top end of the connecting rod 314 is arranged at the middle of the bottom end of the nozzle 313, the bottom end of the connecting rod 314 is provided with a positioning groove 315, the connecting rod 315 is used to fix the grinding gear 6, the number of the second limit blocks 316 is two, and the two second limit blocks 316 are respectively arranged in the middle of the left and right sides of the water tank 37,There are two limit rods 317, which are respectively arranged at the top of the left and right sides of the inner cavity of the outer box 1. The limit rods 317 can be slidably adapted to be plugged into the inner cavity of the second limit block 316. The cooperation between the second limit block 316 and the limit rods 317 can limit the water tank 37.

[0035] Specifically, the outer wall of the connecting rod 314 is also provided with: an expansion sleeve 5 and a grinding gear 6. The expansion sleeve 5 is sleeved on the middle part of the outer wall of the connecting rod 314. The expansion sleeve 5 is a prior art and will not be elaborated here. The expansion sleeve 5 is used here to fix the grinding gear 6. The grinding gear 6 is sleeved on the outer wall of the expansion sleeve 5. The grinding gear 6 is the gear that needs to be ground.

[0036] Specifically, the gear grinding mechanism 4 includes: a steel water pipe 41, a soft water pipe 42, a water tank 43, a positioning column 44, a first rotating rod 45, a first gear 46, a second motor 47, a second gear 48, a sleeve 49, a limit groove 410, a telescopic tube 411, a limit block 412, a gear ring 413, a third motor 414, a second rotating rod 415, a third gear 416, a turntable 417, a support frame 418, a hydraulic cylinder 419, a telescopic rod 420, an installation The block 421 and the electric grinding wheel 422, the bottom end of the steel water pipe 41 is arranged in the middle of the bottom end of the inner cavity of the outer box 1, the bottom end of the steel water pipe 41 extends out of the bottom end of the outer box 1, the steel water pipe 41 is used to support the water tank 43, the top end of the soft water pipe 42 is arranged at the bottom end of the steel water pipe 41, the inner cavity of the soft water pipe 42 is connected with the inner cavity of the steel water pipe 41, the soft water pipe 42 is used to discharge the waste water, the middle of the bottom end of the water tank 43 is arranged at the top end of the steel water pipe 41, the inner cavity of the steel water pipe 41 The inner cavity of the water tank 43 is connected with the inner cavity of the water tank 43, and the water tank 43 is used to collect waste water. The positioning column 44 is arranged at the middle of the top of the water tank 43. The positioning column 44 can slide and rotatably fit and be inserted in the inner cavity of the positioning groove 315. The positioning column 44 is used to support the connecting rod 314. The bottom end of the first rotating rod 45 is rotatably arranged at the bottom end of the inner cavity of the outer box 1 through a bearing. The first gear 46 is sleeved on the outer wall of the first rotating rod 45 and locked by a top screw. The second motor 47 is screwed to the bottom end of the inner cavity of the outer box 1. The top of the first rotating rod 45 is locked at the output end of the second motor 47 through a coupling. The second motor 47 is electrically connected to the PLC controller 7. The second motor 47 is a prior art and will not be described in detail here. The second motor 47 is used here to drive the second gear 48 to rotate through the first gear 46. The second gear 48 is rotatably sleeved on the outer wall of the steel water pipe 41 through a bearing. The second gear 48 and the first gear 46 The sleeve 49 is meshed with each other, and the sleeve 49 is rotatably sleeved on the outer wall of the steel water pipe 41. The bottom end of the sleeve 49 is arranged at the top of the second gear 48. The inner cavity of the sleeve 49 is provided with a plurality of limit grooves 410 equidistantly from top to bottom along the circumferential direction. The telescopic tube 411 is slidably and rotatably sleeved on the outer wall of the steel water pipe 41. The bottom end of the outer wall of the telescopic tube 411 is adapted to be inserted into the inner cavity of the sleeve 49. The number of limit blocks 412 is several, and the plurality of limit blocks 412 are respectively arranged on the outer wall of the telescopic tube 411 equidistantly along the circumferential direction. The limit blocks 412 are adapted to be slidably inserted into the inner cavity of the sleeve 49. The inner cavity of the limit groove 410 is connected to the inner cavity of the limit groove 410. The cooperation between the limit block 412 and the limit groove 410 can be used to drive the telescopic tube 411 to rotate by using the sleeve 49. The gear ring 413 is set at the top of the telescopic tube 411. The gear ring 413 can be rotatably and slidably sleeved on the outer wall of the steel water pipe 41. The third motor 414 is screwed to the middle of the inner cavity of the outer box 1. The third motor 414 is electrically connected to the PLC controller 7. The third motor 414 is a prior art and will not be described in detail here. The third motor 414 is used to drive the third gear 416 to rotate.One end of the second rotating rod 415 is locked to the output end of the third motor 414 through a coupling, the third gear 416 is sleeved on the outer wall of the second rotating rod 415 and locked by a top screw, the third gear 416 is meshed with the gear ring 413, and the third gear 416 rotates to cooperate with the gear ring 413 to drive the turntable 417 to move up and down, the middle of the bottom end of the turntable 417 is arranged at the top of the gear ring 413, the turntable 417 is rotatably and slidably sleeved on the outer wall of the steel water pipe 41, the support frame 418 is arranged at the top of the turntable 417, and the hydraulic cylinder 419 is arranged at the top of the support frame 418 , the hydraulic cylinder 419 is electrically connected to the PLC controller 7, the hydraulic cylinder 419 is a prior art, and no further description is given here. The hydraulic cylinder 419 is used here to push the electric grinding wheel 422 to move, the telescopic rod 420 can be slidably and appropriately plugged into the inner cavity of the support frame 418, the mounting block 421 is arranged at the inner end of the telescopic rod 420, the electric grinding wheel 422 is arranged at the inner end of the mounting block 421, the electric grinding wheel 422 is electrically connected to the PLC controller 7, the electric grinding wheel 422 is a prior art, and no further description is given here. The electric grinding wheel 422 is used here to grind the grinding gear 6. ,

[0037] A gear grinding method for a gear grinding device of a planetary gear assembly, comprising the following steps:

[0038] 1) When in use, the solenoid valve 312 is opened to start the water pump 39, and the water in the inner cavity of the water tank 37 is pumped out by the water pump 39 through the water inlet pipe 310, and the water is transported to the inner cavity of the nozzle 313 through the hard drain pipe 311, and the nozzle 313 is used to spray water downward to cool the grinding gear 6, and the dripping water falls into the inner cavity of the water tank 43, and flows into the inner cavity of the steel water pipe 41 and the soft water pipe 42 along the inner cavity of the water tank 43 to be discharged;

[0039] 2) According to the diameter of the grinding gear 6, the hydraulic cylinder 419 is started to push the mounting block 421 to drive the electric grinding wheel 422 to move left and right, until the electric grinding wheel 422 moves to a suitable position, the electric grinding wheel 422 is started, and the electric grinding wheel 422 is used to grind the gear 6, and at the same time, the third motor 414 is started, and the output end of the third motor 414 is used to drive the third gear 416 to rotate through the second rotating rod 415. The rotation of the third gear 416 can prompt the gear ring 413 to drive the telescopic tube 411 and the turntable 417 to move up and down, thereby driving the electric grinding wheel 422 to move up and down, and the electric grinding wheel 422 can be used to grind the gear 6 Gear grinding is performed. After the grinding of the current position is completed, the second motor 47 is started. The output end of the second motor 47 is used to drive the first gear 46 to rotate through the first rotating rod 45. Then, the first gear 46 can drive the sleeve 49 to rotate through the second gear 48. The sleeve 49 can drive the telescopic tube 411 to rotate through the cooperation between the limit groove 410 and the limit block 412. Then, the telescopic tube 411 can drive the support frame 418 and the electric grinding wheel 422 to rotate through the gear ring 413 and the rotating disk 417 until the electric grinding wheel 422 rotates to a suitable position. Repeat the above actions to realize the gear grinding of the grinding gear 6.

[0040] 3) After the grinding of the grinding gear 6 is completed, the first motor 32 is started, and the output end of the first motor 32 is used to drive the screw 33 to rotate, and then the rotation of the screw 33 causes the two moving blocks 35 to move outward synchronously, and then the connecting rod 36 can pull the water tank 37 to drive the connecting rod 314 to move upward until the connecting rod 314 moves upward to a suitable position, and the expansion sleeve 5 is rotated until the expansion sleeve 5 rotates to a suitable position, and the grinding gear 6 can be removed from the expansion sleeve 5;

[0041] The device can automatically grind the gears of a planetary gear assembly, thereby not only having high working efficiency and high precision, but also reducing the labor intensity of the staff. At the same time, the device has a relatively simple structure, and the repair and maintenance process is relatively convenient, with low cost and easy use.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A gear grinding device for a planetary gear assembly, characterized in that: include: outer box(1); A box door (2), the box door (2) being arranged at the middle of the front side of the outer box (1); A water cooling mechanism (3), wherein the water cooling mechanism (3) is arranged at the top end of the inner cavity of the outer box (1); A gear grinding mechanism (4), wherein the gear grinding mechanism (4) is arranged at the bottom end of the inner cavity of the outer box (1); A PLC controller (7), the PLC controller (7) being arranged at the top right side of the outer box (1); The water cooling mechanism (3) comprises: A mounting frame (31), the mounting frame (31) being arranged at the top right side of the outer box (1); A first motor (32), the first motor (32) being screw-connected to the inner cavity of the mounting frame (31), and the first motor (32) being electrically connected to a PLC controller (7); A screw rod (33), wherein the right end of the screw rod (33) is locked to the output end of the first motor (32) via a coupling, and the left end of the screw rod (33) is rotatably arranged at the left top end of the inner cavity of the outer box (1) via a bearing, and the threads of the outer wall of the screw rod (33) are symmetrical about the center point of the outer box (1); A guide rod (34), the left and right ends of the guide rod (34) being respectively arranged at the top ends of the left and right sides of the inner cavity of the outer box (1); A moving block (35), wherein the number of the moving blocks (35) is two, the top ends of the two moving blocks (35) are respectively slidably sleeved on the left and right sides of the outer wall of the guide rod (34), and the middle parts of the two moving blocks (35) are respectively screwed on the left and right sides of the outer wall of the screw rod (33); A connecting rod (36), the top end of which is rotatably disposed on the bottom end of the moving block (35) via a pin; The bottom end of the connecting rod (36) is also provided with: A water tank (37), wherein the middle portion of the top end of the water tank (37) is rotatably arranged at the bottom ends of the two connecting rods (36) via a pin, and a water inlet is provided at the rear side of the water tank (37); A connecting plate (38), the top end of the connecting plate (38) being arranged at the middle of the bottom end of the water tank (37); A water pump (39), the water pump (39) being locked at the middle of the bottom end of the water tank (37) via a coupling, and the water pump (39) being electrically connected to a PLC controller (7); A water inlet pipe (310), one end of the water inlet pipe (310) being arranged at the water inlet of the water pump (39), and the other end of the water inlet pipe (310) extending into the inner cavity of the water tank (37); A hard drainage pipe (311), one end of the hard drainage pipe (311) being arranged at a drainage outlet of a water pump (39); A solenoid valve (312), the solenoid valve (312) being arranged on the outer wall of the hard drainage pipe (311), the solenoid valve (312) being electrically connected to a PLC controller (7); A nozzle (313), the nozzle (313) being arranged at the bottom end of the hard drainage pipe (311), the inner cavity of the nozzle (313) being in communication with the inner cavity of the hard drainage pipe (311); A connecting rod (314), the top end of the connecting rod (314) being arranged at the middle of the bottom end of the spray head (313), and the bottom end of the connecting rod (314) being provided with a positioning groove (315); A second limiting block (316), wherein the number of the second limiting blocks (316) is two, and the two second limiting blocks (316) are respectively arranged at the middle of the left and right sides of the water tank (37); Limit rods (317), the number of the limit rods (317) is two, the two limit rods (317) are respectively arranged at the top of the left and right sides of the inner cavity of the outer box (1), and the limit rods (317) can be slidably adapted to be plugged into the inner cavity of the second limit block (316); The outer wall of the connecting rod (314) is also provided with: An expansion sleeve (5), the expansion sleeve (5) being sleeved on the middle portion of the outer wall of the connecting rod (314); A grinding gear (6), wherein the grinding gear (6) is sleeved on the outer wall of the expansion sleeve (5); The gear grinding mechanism (4) comprises: A steel water pipe (41), wherein the bottom end of the steel water pipe (41) is arranged in the middle of the bottom end of the inner cavity of the outer box (1), and the bottom end of the steel water pipe (41) extends out of the bottom end of the outer box (1); A soft water pipe (42), wherein the top end of the soft water pipe (42) is arranged at the bottom end of the steel water pipe (41), and the inner cavity of the soft water pipe (42) is connected to the inner cavity of the steel water pipe (41); A water tank (43), wherein the middle portion of the bottom end of the water tank (43) is arranged at the top end of the steel water pipe (41), and the inner cavity of the steel water pipe (41) is connected to the inner cavity of the water tank (43); A positioning column (44), the positioning column (44) being arranged at the middle of the top end of the water tank (43), the positioning column (44) being slidable and rotatable so as to be adapted and plugged into the inner cavity of the positioning groove (315); A first rotating rod (45), the bottom end of which is rotatably arranged at the bottom end of the inner cavity of the outer box (1) via a bearing; A first gear (46), the first gear (46) being sleeved on an outer wall of the first rotating rod (45) and locked by a top screw; a second motor (47), the second motor (47) being screwed to the bottom end of the inner cavity of the outer box (1), the top end of the first rotating rod (45) being locked to the output end of the second motor (47) through a coupling, and the second motor (47) being electrically connected to the PLC controller (7); a second gear (48), the second gear (48) being rotatably sleeved on the outer wall of the steel water pipe (41) via a bearing, the second gear (48) being meshed with the first gear (46); A sleeve (49), the sleeve (49) being rotatably sleeved on the outer wall of the steel water pipe (41), the bottom end of the sleeve (49) being arranged on the top end of the second gear (48), and the inner cavity of the sleeve (49) being provided with a plurality of limit grooves (410) equidistantly from top to bottom along the circumferential direction; A telescopic tube (411), the telescopic tube (411) being slidably and rotatably sleeved on the outer wall of the steel water pipe (41), the bottom end of the outer wall of the telescopic tube (411) being adapted to be inserted into the inner cavity of the sleeve (49); A limit block (412), wherein the limit blocks (412) are in a plurality, and the limit blocks (412) are respectively arranged on the outer wall of the telescopic tube (411) at equal intervals along the circumferential direction, and the limit blocks (412) are adapted to be slidably inserted into the inner cavity of the limit groove (410); A gear ring (413), the gear ring (413) being arranged at the top end of the telescopic tube (411), the gear ring (413) being rotatably and slidably sleeved on the outer wall of the steel water pipe (41); A third motor (414), the third motor (414) being screw-connected to the middle of the inner cavity of the outer box (1), and the third motor (414) being electrically connected to the PLC controller (7); a second rotating rod (415), one end of the second rotating rod (415) being locked to an output end of the third motor (414) via a coupling; A third gear (416), wherein the third gear (416) is sleeved on the outer wall of the second rotating rod (415) and is locked by a top screw, and the third gear (416) is meshed with the gear ring (413); A rotating disk (417), wherein the middle portion of the bottom end of the rotating disk (417) is disposed at the top end of the gear ring (413), and the rotating disk (417) is rotatably and slidably sleeved on the outer wall of the steel water pipe (41); The top of the rotating disk (417) is also provided with: A support frame (418), wherein the support frame (418) is disposed on the top of the rotating disk (417); A hydraulic cylinder (419), wherein the hydraulic cylinder (419) is disposed at the top of the support frame (418), and the hydraulic cylinder (419) is electrically connected to a PLC controller (7); A telescopic rod (420), wherein the telescopic rod (420) can be slidably adapted to be inserted into the inner cavity of the support frame (418); A mounting block (421), wherein the mounting block (421) is arranged at the inner end of the telescopic rod (420); An electric grinding wheel (422), the electric grinding wheel (422) being arranged at the inner end of the mounting block (421), the electric grinding wheel (422) being electrically connected to a PLC controller (7); When in use, the solenoid valve (312) is opened to start the water pump (39), and the water in the inner cavity of the water tank (37) is pumped out by the water pump (39) through the water inlet pipe (310), and the water is transported to the inner cavity of the spray head (313) through the hard drainage pipe (311), and the spray head (313) sprays the water downward to cool the grinding gear (6), and the dripping water falls into the inner cavity of the water tank (43), and flows into the inner cavity of the steel water pipe (41) and the inner cavity of the soft water pipe (42) along the inner cavity of the water tank (43) and is discharged; According to the diameter of the grinding gear (6), the hydraulic cylinder (419) is started to push the mounting block (421) to drive the electric grinding wheel (422) to move left and right until the electric grinding wheel (422) moves to a suitable position, and the electric grinding wheel (422) is started to grind the teeth of the grinding gear (6). At the same time, the third motor (414) is started, and the output end of the third motor (414) is used to drive the third gear (416) to rotate through the second rotating rod (415). The rotation of the third gear (416) causes the gear ring (413) to drive the telescopic tube (411) and the rotating disk (417) to move up and down, thereby driving the electric grinding wheel (422) to move up and down, and the electric grinding wheel (422) is used to grind the teeth of the grinding gear (6). Gear grinding is performed, and after grinding of the current position is completed, the second motor (47) is started, and the output end of the second motor (47) is used to drive the first gear (46) to rotate through the first rotating rod (45), and then the first gear (46) can drive the sleeve (49) to rotate through the second gear (48), and the sleeve (49) is used to drive the telescopic tube (411) to rotate through the cooperation between the limit groove (410) and the limit block (412), and then the telescopic tube (411) is used to drive the support frame (418) and the electric grinding wheel (422) to rotate through the gear ring (413) and the rotating disk (417), until the electric grinding wheel (422) rotates to a suitable position, and the above-mentioned actions are repeated to realize the gear grinding of the gear (6); After the grinding of the grinding gear (6) is completed, the first motor (32) is started, and the output end of the first motor (32) is used to drive the screw rod (33) to rotate, and then the rotation of the screw rod (33) causes the two moving blocks (35) to move outward synchronously, and then the connecting rod (36) is used to pull the water tank (37) to drive the connecting rod (314) to move upward until the connecting rod (314) moves upward to a suitable position, and the expansion sleeve (5) is rotated until the expansion sleeve (5) is rotated to a suitable position, and the grinding gear (6) can be removed from the expansion sleeve (5).

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