CN114709961A - Oil-proof servo motor for numerical control machine tool - Google Patents
Oil-proof servo motor for numerical control machine tool Download PDFInfo
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- CN114709961A CN114709961A CN202210243402.9A CN202210243402A CN114709961A CN 114709961 A CN114709961 A CN 114709961A CN 202210243402 A CN202210243402 A CN 202210243402A CN 114709961 A CN114709961 A CN 114709961A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to the technical field of servo motors, in particular to an oil-proof servo motor for a numerical control machine tool, which comprises a motor body and a driving shaft arranged on the motor body, wherein an oil-proof mechanism is arranged on the driving shaft, the oil-proof mechanism comprises a backing plate, a sealing bearing, an oil-proof assembly, a driving assembly, a shell, a connecting block, a mounting disc and a sealing ring, the sealing bearing is arranged on the driving shaft, the backing plate is arranged on the sealing bearing, the oil-proof assembly is arranged on the backing plate, the driving assembly is arranged on the driving shaft, the shell is arranged on the backing plate, the circumference of the connecting block is arranged on the shell, and the connecting block is fixedly connected with the backing plate, so that the problem that the framework oil seal is frequently replaced due to the fact that the requirement on the rotating speed of an output shaft of the servo motor is variable when the numerical control machine tool is processed is solved, the sealing ring at the joint of the servo motor and a reduction gear box is easily worn when the servo motor works for a long time, the problem that lubricating oil in the gear box is easy to enter the servo motor is caused.
Description
Technical Field
The invention relates to the technical field of servo motors, in particular to an oil-proof servo motor for a numerical control machine tool.
Background
The numerical control machine tool is an automatic machine tool provided with a program control system. The numerical control machine tool well solves the problem of machining of complex, precise, small-batch and various parts, is a flexible and high-efficiency automatic machine tool, represents the development direction of the control technology of modern machine tools, and is a typical mechanical and electrical integration product. The basic components of the numerical control machine tool comprise a processing program carrier, a numerical control device, a servo driving device, a machine tool main body and other auxiliary devices.
The servo driving device of the numerical control machine generally comprises a main shaft servo motor, an X-axis servo motor, a Y-axis servo motor, a Z-axis servo motor, a reduction gear box and a transmission device, wherein an output shaft of each servo motor is connected with the reduction gear box, and the reduction gear box is connected with the transmission device so as to perform corresponding movement. At present, when servo motor's output shaft and reduction gear are connected, generally can set up the skeleton oil blanket on servo motor's output shaft, avoid the lubricating oil leakage in the reduction gear to get into servo motor, nevertheless because the digit control machine tool adds man-hour, servo motor's output shaft rotational speed requirement is changeable, damage the skeleton oil blanket easily, lead to frequently changing the skeleton oil blanket, and reduction gear and servo motor's output shaft junction, generally seal through the sealing washer, servo motor is when long-term work, the sealing washer that easily wears, lead to the lubricating oil in the gear box also to get into servo motor easily.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an oil-proof servo motor for a numerical control machine tool, which is used to solve the problems that when a numerical control machine tool is machined, the requirement for the rotation speed of an output shaft of the servo motor is variable, a skeleton oil seal is easily damaged, and the skeleton oil seal needs to be frequently replaced, and when the servo motor works for a long time, a seal ring at the connection between the servo motor and a reduction gear box is easily worn, so that lubricating oil in the gear box easily enters the servo motor.
The invention solves the technical problems by the following technical means:
an oil-proof servo motor for a numerical control machine tool comprises a motor body and a driving shaft arranged on the motor body, wherein a flange is arranged on the motor body, the driving shaft penetrates out of the flange, an oil-proof mechanism is arranged on the driving shaft, the oil-proof mechanism comprises a base plate, a sealing bearing, an oil-proof component, a driving component, a shell, a connecting block, a mounting disc and a sealing ring, the sealing bearing is arranged on the driving shaft, the base plate is arranged on the outer wall of the sealing bearing, the oil-proof component is arranged on the base plate, the driving component is arranged on the driving shaft and is in transmission connection with the oil-proof component, the shell is arranged on the base plate, the circumference of the connecting block is arranged on the shell, the connecting block is fixedly connected with the base plate, a mounting groove is formed in the flange, the mounting disc is arranged in the mounting groove and is sleeved on the outer wall of the shell, the sealing ring is arranged between the mounting disc and the outer wall of the shell, the drive shaft passes through the housing.
Further, grease proofing subassembly includes mounting panel, go-between, barrier plate and seal cover, the mounting panel is installed on sealed bearing's outer wall, the cross-section of barrier plate is the toper, the fixed setting of link is on the outer wall of barrier plate, go-between and mounting panel fixed connection, be formed with the cavity between barrier plate and the mounting panel, ring groove has been seted up at the middle part of seal cover, the fixed annular fixture block that is provided with of one end of barrier plate, the annular fixture block card is established in ring groove, sets up like this, forms the gas tightness through cavity and seal cover and seals, makes servo motor at the during operation, can block that external lubricating oil drips and get into the barrier plate to can not get into inside the servo motor.
Further, the both ends of seal cover are slope form, the annular standing groove has all been seted up at the both ends of seal cover, be provided with annular spring in the standing groove, the seal cover is provided with annular card in one side of drive assembly, the cross-section of card is the slope form, sets up like this, strengthens the seal cover to the sealed of drive shaft.
Further, the driving assembly comprises a rotating block, a transmission rod, a ball head column, an extrusion block, a convex ring, a plugging piece and an elastic piece, wherein the rotating block is fixedly arranged on the driving shaft, a sealing gasket is arranged between the rotating block and the inner wall of the shell, the transmission rod is fixedly arranged on the rotating block, the ball head column is fixedly arranged at the free end of the transmission rod, the convex ring is fixedly arranged on the extrusion block, the convex ring is sleeved on the driving shaft, a track groove is formed in the extrusion block, the ball head column is matched with the track groove, a containing cavity is formed between the extrusion block and the blocking plate, the plugging piece is arranged on the extrusion block, and the elastic piece is arranged between the extrusion block and the connecting ring, so that the rotating block can be driven to rotate when the servo motor works, the rotating block rotates to drive the ball head column to move between the track groove and the surface of the extrusion block, and the extrusion block can enter the containing cavity, make the inboard joint of card and bulge loop, further strengthen the leakproofness of servo motor during operation, simultaneously, can be with servo motor out of work, because when a large amount of oil leakages of reduction gear box, get into the fluid that holds the chamber and collect, further avoid the seepage to get into inside servo motor.
Furthermore, the depth dimension from the middle part to the tail end of the track groove is gradually reduced, and the tail end of the track groove is flush with the outer surface of the extrusion block, so that the ball head column can extrude the extrusion block in the rotating process, and the extrusion block moves.
Further, the shutoff piece includes sleeve, first shutoff ring and second shutoff ring, telescopic one end is fixed to be set up on the go-between, first shutoff ring is fixed to be set up on the extrusion piece to be located between extrusion piece and the sleeve, the cross-section of second shutoff ring is trapezoidal, second shutoff ring and first shutoff ring fixed connection set up like this, make servo motor at the during operation, can not lead to fluid to splash because of holding the intracavity existence fluid, make fluid follow in other places entering servo motor.
Further, the elastic component includes fender ring, adapter sleeve, spring, connecting rod, sliding block and spacing ring, the fender ring is fixed to be set up on the extrusion piece, the connecting rod circumference sets up on keeping off the ring, the fixed free end that sets up at the connecting rod of sliding block, the one end of adapter sleeve is fixed to be set up on the adapter sleeve to correspond with the position of connecting rod, the spring sets up in the adapter sleeve, the one end of spring and the bottom fixed connection of adapter sleeve, the other end offsets with the sliding block, the spacing ring sets up on the adapter sleeve, the spacing ring is worn out to the connecting rod, sets up like this, makes servo motor under the inoperative condition, and when the bulb post was located the orbit inslot, the extrusion piece can reset.
Further, the fixed block that is provided with on the casing, keep off the ring and seted up in the position of fixed block and dodge the groove, the small opening has been seted up on the fixed block, logical groove has been seted up on the sleeve, lead to groove and small opening intercommunication, and the sectional area of small opening is greater than the sectional area that leads to the groove, the flowing groove has been seted up on the casing, flowing groove and small opening intercommunication, the end of flowing groove is provided with the plunger, the plunger is the transparence, sets up like this, and when there is fluid in the holding intracavity, fluid can follow logical groove and small opening and get into the flowing groove to whether there is fluid in looking over the flowing groove through transparent plunger, when there being fluid, can inspect whether oil leak of reduction gear box or sealed pad damage.
Further, the flowing groove is the slope form, sets up like this, through opening the stopper post, can emit the fluid that holds the intracavity, easy access.
The oil-proof servo motor for the numerical control machine tool has the following advantages:
1. by the mutual matching of the base plate, the sealing bearing, the oil-proof assembly, the driving assembly, the shell, the connecting block, the mounting disc and the sealing ring, oil can be prevented from entering a servo motor from the outside and entering the servo motor along a driving shaft, and when the oil-proof mechanism is used for replacing a skeleton oil seal, the oil-proof mechanism can adapt to the condition that the rotating speed of the driving shaft of the servo motor is variable, and the use cost is saved;
2. the oil-proof assembly comprises a mounting plate, a connecting ring, a blocking plate and a sealing sleeve, and the mounting plate, the connecting ring, the blocking plate and the sealing sleeve are mutually matched, so that when a driving shaft of the servo motor rotates, air-tight sealing can be formed, and the sealing effect is enhanced;
3. the driving assembly comprises a rotating block, a transmission rod, a ball head column, an extrusion block, a convex ring, a plugging piece and an elastic piece, the rotating block, the transmission rod, the ball head column, the extrusion block, the convex ring, the plugging piece and the elastic piece are matched with each other, so that a card can be clamped with the inner side of the convex ring when the servo motor works, the sealing performance of the servo motor when the servo motor works is further enhanced, and meanwhile, when the servo motor does not work, oil entering the containing cavity is collected when a large amount of oil leaks from the reduction gearbox, and the leakage is further prevented from entering the inside of the servo motor;
4. through mutually supporting of grease proofing subassembly and drive assembly, when servo motor static state or developments, form three layer upon layer sealed that advances, can prevent that external fluid from getting into servo motor along the drive shaft inside, and through the mutually supporting of fixed block, logical groove, small opening, flowing groove and stopper post, can inspect the servo oil leak of reduction gear box of drive shaft connection, improve the holistic life of digit control machine tool.
Drawings
FIG. 1 is a schematic structural view of an oil-proof servo motor for a numerical control machine according to the present invention;
FIG. 2 is a schematic cross-sectional view of an oil-proof servo motor for a numerical control machine according to the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is an enlarged schematic view of the structure at B in FIG. 2;
FIG. 5 is a schematic view of an installation structure of an oil-proof mechanism in an oil-proof servo motor for a numerical control machine according to the present invention;
FIG. 6 is a schematic view of a partial installation structure of an oil-proof component in an oil-proof servo motor for a numerical control machine according to the present invention;
FIG. 7 is a schematic cross-sectional view of an oil-proof assembly in an oil-proof servo motor for a numerical control machine according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7 at C;
FIG. 9 is a schematic structural diagram of a sealing sleeve in an oil-proof assembly of an oil-proof servo motor for a numerical control machine according to the present invention;
the sealing device comprises a motor body 1, a driving shaft 11, a flange 12, a mounting groove 121, a housing 2, a flow groove 201, a connecting block 21, a base plate 22, a mounting plate 23, a sealing bearing 24, a blocking plate 25, an annular clamping block 250, a connecting ring 251, a sleeve 252, a through groove 253, a sealing sleeve 26, an annular clamping groove 261, an annular placing groove 262, an annular spring 263, a slope 264, an annular clamping plate 265, a fixing block 27, a leakage groove 271, a plug column 28, a mounting disc 3, a sealing ring 31, a rotating block 4, a sealing gasket 41, a transmission rod 42, a ball stud 43, an extrusion block 44, a track groove 441, a convex ring 45, a first blocking ring 46, a second blocking ring 461, a blocking ring 5, a connecting sleeve 51, a spring 52, a connecting rod 53, a sliding block 531 and a limiting ring 54.
Detailed Description
The invention will be described in detail below with reference to the following figures and specific examples:
as shown in fig. 1 to 9, the oil-proof servo motor for the numerical control machine tool comprises a motor body 1 and a driving shaft 11 arranged on the motor body 1, wherein a flange 12 is arranged on the motor body 1, and the driving shaft 11 penetrates through the flange 12. Be provided with grease proofing mechanism on the drive shaft 11, grease proofing mechanism includes backing plate 22, sealed bearing 24, grease proofing subassembly, drive assembly, casing 2, connecting block 21, mounting disc 3 and sealing washer 31, through backing plate 22, sealed bearing 24, grease proofing subassembly, drive assembly, casing 2, connecting block 21, mounting disc 3 and sealing washer 31 mutually support, can enough block in fluid gets into the servo motor from the outside, also can block in fluid gets into the servo motor along the drive shaft.
The sealing bearing 24 is fixedly arranged on the driving shaft 11, the backing plate 22 is fixedly arranged on the outer wall of the sealing bearing 24, and the oil-proof assembly is arranged on the backing plate 22, so that when the driving shaft 11 rotates, the oil-proof assembly cannot rotate. Drive assembly sets up on drive shaft 11 to be connected with grease proofing subassembly transmission, when making drive shaft 11 rotate, drive assembly can rotate, and with the contact of grease proofing subassembly, through mutually supporting of drive assembly and grease proofing subassembly, when servo motor is static or dynamic, form three layer sealing that advances one by one, can prevent that external fluid from getting into inside servo motor along the drive shaft. The shell 2 is arranged on the backing plate 22, the connecting block 21 is circumferentially arranged on the shell 2, and the connecting block 21 is fixedly connected with the backing plate 22 through bolts. The flange 12 is provided with a mounting groove 121, the mounting disc 3 is mounted in the mounting groove 121 and is sleeved on the outer wall of the shell 2, the sealing ring 31 is arranged between the mounting disc 3 and the outer wall of the shell 2, and the driving shaft 11 penetrates out of the shell 2, so that when external oil is leaked on the shell 2, the probability of entering the servo motor from the shell 2 along the mounting disc 3 is reduced.
The oil-proof assembly comprises a mounting plate 23, a connecting ring 251, a blocking plate 25 and a sealing sleeve 26, wherein the mounting plate 23 is fixedly mounted on the outer wall of the sealing bearing 24. The section of the blocking plate 25 is conical, the connecting ring 251 is fixedly arranged on the outer wall of the blocking plate 25, and the connecting ring 251 is fixedly connected with the mounting plate 23 through bolts, so that when the driving shaft 11 rotates, the mounting plate 23 and the blocking plate 25 cannot rotate. A cavity is formed between the blocking plate 25 and the mounting plate 23, an annular clamping groove 261 is formed in the middle of the sealing sleeve 26, an annular clamping block 250 is fixedly arranged at one end of the blocking plate 25, and the annular clamping block 250 is clamped in the annular clamping groove 261. When the servo motor works, the driving shaft 11 rotates, the heat generated by the rotation of the driving shaft 11 expands the air in the cavity, the expanded air and the sealing sleeve 26 form air-tight sealing, and then the sealing of the sealing sleeve 26 is matched to form a double-sealing effect, so that when the servo motor works, the lubricating oil drops outside can be prevented from entering the blocking plate 25, and the lubricating oil drops cannot enter the servo motor. The two ends of the sealing sleeve 26 are in a slope shape 264, the two ends of the sealing sleeve 26 are both provided with annular placing grooves 262, and annular springs 263 are arranged in the annular placing grooves 262 to strengthen the sealing of the sealing sleeve 26 on the driving shaft 11. Seal cartridge 26 is provided with annular card 265 in one side of drive assembly, and the cross-section of card 265 is the slope form, through mutually supporting of card 265 and drive assembly, forms the tertiary sealed effect.
The driving assembly comprises a rotating block 4, a transmission rod 42, a ball stud 43, a squeezing block 44, a convex ring 45, a plugging piece and an elastic piece. The rotating block 4 is fixedly arranged on the driving shaft 11, and a sealing gasket 41 is arranged between the rotating block 4 and the inner wall of the shell 2, so that on one hand, friction between the rotating block 4 and the shell 2 is avoided, and on the other hand, the effect of sealing the shell 2 is achieved. The transmission rod 42 is fixedly arranged on the rotating block 4, and the ball stud 43 is fixedly arranged at the free end of the transmission rod 42. The convex ring 45 is fixedly arranged on the extrusion block 44, and the convex ring 45 is sleeved on the driving shaft 11. The extrusion block 44 is provided with a track groove 441, the ball head column 43 is matched with the track groove 441, the depth from the middle part to the tail end of the track groove 441 is gradually reduced, and the tail end of the track groove 441 is flush with the outer surface of the extrusion block 44. Be formed with between extrusion piece 44 and the barrier plate 25 and hold the chamber, when the turning block 4 rotates, drive ball post 43 and rotate, ball post 43 is rotating the in-process, can constantly extrude extrusion piece 44, makes extrusion piece 44 remove, and the entering holds the chamber to make annular card 265 joint in the inboard of bulge loop 45, further strengthen sealed effect.
The shutoff piece sets up on extrusion piece 44, and the elastic component setting is between extrusion piece 44 and go-between 251, through mutually supporting of shutoff piece and elastic component, can be with the off-working time of servo motor, because when a large amount of oil leakages of reduction gear case, get into the fluid that holds the chamber and collect, further avoid the seepage to get into inside the servo motor.
The plugging member comprises a sleeve 252, a first plugging ring 46 and a second plugging ring 461, one end of the sleeve 252 is fixedly arranged on the connecting ring 251, the first plugging ring 46 is fixedly arranged on the extrusion block 44 and is positioned between the extrusion block 44 and the sleeve 252, the section of the second plugging ring 461 is trapezoidal, and the second plugging ring 461 is fixedly connected with the first plugging ring 46. When the servo motor works, the extrusion block 44 moves towards the bottom of the sleeve 252, so that the accommodating cavity is contracted, the tail end of the first blocking ring 46 abuts against the connecting ring 251, oil liquid in the accommodating cavity is extruded towards the first blocking ring 46, and due to blocking of the second blocking ring 461, the oil liquid in the accommodating cavity cannot splash, so that the oil liquid enters the servo motor from other places.
The elastic member includes a stopper ring 5, a connecting sleeve 51, a spring 52, a connecting rod 53, a sliding block 531 and a stopper ring 54. The baffle ring 5 is fixedly arranged on the extrusion block 44, the connecting rod 53 is circumferentially arranged on the baffle ring 5, the sliding block 531 is fixedly arranged at the free end of the connecting rod 53, one end of the connecting sleeve 51 is fixedly arranged on the connecting ring 251 and corresponds to the position of the connecting rod 53, the spring 52 is arranged in the connecting sleeve 51, one end of the spring 52 is fixedly connected with the bottom of the connecting sleeve 51, and the other end of the spring is abutted against the sliding block 531. The limiting ring 54 is arranged on the connecting sleeve 51, and the connecting rod 53 penetrates out of the limiting ring 54, so that the connecting rod 53 and the connecting sleeve 51 are prevented from slipping. When the servo motor is not in operation and the ball stud 43 is in the track groove 441, the squeeze block 44 can be reset.
The fixed block 27 is fixedly arranged on the shell 2, and the retaining ring 5 is provided with an avoiding groove 501 at the position of the fixed block 27, so that the fixed block 27 can pass through the retaining ring 5 when the shell 2 is installed. The fixed block 27 is provided with a leakage groove 271, the sleeve 252 is provided with a through groove 253, the through groove 253 is communicated with the leakage groove 271, and the sectional area of the leakage groove 271 is larger than that of the through groove 253, so that oil liquid in the accommodating cavity can completely enter the leakage groove 271. The casing 2 is provided with a flow groove 201, and the flow groove 201 is communicated with the leakage groove 271, so that oil can enter the flow groove 201 through the leakage groove 271. The end of mobile slot 201 is provided with plunger 28, and plunger 28 is transparent, and when holding the intracavity and having fluid, fluid can follow logical groove 253 and small opening 271 entering mobile slot 201 to being blockked by plunger 28, looking over through transparent plunger 28 whether have fluid in mobile slot 201, when having fluid, can inspect whether the oil leak of reduction gear box or sealed pad 41 damage. The fluid groove 201 is inclined, and by opening the plug 28, the oil in the accommodation chamber can be discharged, which facilitates the inspection.
The application method of the embodiment comprises the following steps: when the servo motor works, the driving shaft 11 rotates to generate heat, so that the air in the cavity is expanded, the expanded air and the sealing sleeve 26 form air-tight sealing, and then the double sealing effect is formed by matching with the sealing of the sealing sleeve 26, during the rotation of the driving shaft 11, the rotating block 4 rotates to drive the transmission rod 42 and the ball stud 43 to rotate, the ball stud 43 can continuously extrude the extrusion block 44 during the rotation, so that the extrusion block 44 moves to enter the accommodating cavity, thereby the annular clamping piece 265 is clamped at the inner side of the convex ring 45, the sealing effect is further enhanced, and the pressing block 44 presses the accommodating chamber, so that the oil existing in the accommodating chamber enters the leak groove 271 through the through groove 253, and then enters the flow groove 201, during this process, oil does not leak out of the squeeze block 44 due to the plugging of the first and second plugging rings 46, 461.
When the servo motor does not work, two conditions exist, one is that the ball stud 43 is positioned in the track groove 441 to open the accommodating cavity, in this condition, external oil enters the accommodating cavity along the driving shaft 11, and due to the blocking of the sealing sleeve 26, the oil enters the leakage groove 271 along the through groove 253 under the action of gravity, so as to enter the flowing groove 201; the other is that the ball stud 43 is located on the surface of the extrusion block 44, so that the extrusion block 44 is accommodated in the accommodating cavity, the annular clamping piece 265 is clamped and enters the inner side of the convex ring 45, so that the driving shaft 11 is sealed by the sealing sleeve 26, the clamping piece 265 and the convex ring 45, and external oil cannot enter the extrusion block 44, so that the servo motor works, and even if the external oil leaks, the oil cannot enter the servo motor.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (9)
1. The utility model provides an grease proofing servo motor for digit control machine tool, includes motor body and the drive shaft of setting on motor body, the last flange that is provided with of motor body, the flange is worn out to the drive shaft, its characterized in that: be provided with grease proofing mechanism in the drive shaft, grease proofing mechanism includes backing plate, sealed bearing, grease proofing subassembly, drive assembly, casing, connecting block, mounting disc and sealing washer, sealed bearing sets up in the drive shaft, the backing plate sets up on sealed bearing's outer wall, grease proofing subassembly sets up on the backing plate, drive assembly sets up in the drive shaft to be connected with the transmission of grease proofing subassembly, the casing sets up on the backing plate, the connecting block circumference sets up on the casing, connecting block and backing plate fixed connection, the mounting groove has been seted up on the flange, the mounting disc is installed in the mounting groove to cup joint on the casing outer wall, the sealing washer sets up between mounting disc and casing outer wall, the casing is worn out to the drive shaft.
2. The oil-proof servo motor for the numerical control machine tool is characterized in that: the oil-proof assembly comprises a mounting plate, a connecting ring, a blocking plate and a sealing sleeve, the mounting plate is mounted on the outer wall of the sealing bearing, the cross section of the blocking plate is conical, the connecting ring is fixedly arranged on the outer wall of the blocking plate, the connecting ring is fixedly connected with the mounting plate, a cavity is formed between the blocking plate and the mounting plate, an annular clamping groove is formed in the middle of the sealing sleeve, an annular clamping block is fixedly arranged at one end of the blocking plate, and the annular clamping block is clamped in the annular clamping groove.
3. The oil-proof servo motor for the numerical control machine tool is characterized in that: the both ends of seal cover are slope form, the annular standing groove has all been seted up at the both ends of seal cover, be provided with annular spring in the standing groove, the seal cover is provided with annular card in one side of drive assembly, the cross-section of card is the slope form.
4. The oil-proof servo motor for the numerical control machine tool according to claim 3, characterized in that: the driving assembly comprises a rotating block, a transmission rod, a ball head column, an extrusion block, a convex ring, a plugging piece and an elastic piece, wherein the rotating block is fixedly arranged on a driving shaft, a sealing gasket is arranged between the rotating block and the inner wall of the shell, the transmission rod is fixedly arranged on the rotating block, the ball head column is fixedly arranged at the free end of the transmission rod, the convex ring is fixedly arranged on the extrusion block, the convex ring is sleeved on the driving shaft, a track groove is formed in the extrusion block, the ball head column is matched with the track groove, a containing cavity is formed between the extrusion block and a blocking plate, the plugging piece is arranged on the extrusion block, and the elastic piece is arranged between the extrusion block and the connection ring.
5. The oil-proof servo motor for the numerical control machine tool is characterized in that: the depth size from the middle part to the tail end of the track groove is gradually reduced, and the tail end of the track groove is flush with the outer surface of the extrusion block.
6. The oil-proof servo motor for the numerical control machine tool is characterized in that: the plugging piece comprises a sleeve, a first plugging ring and a second plugging ring, one end of the sleeve is fixedly arranged on the connecting ring, the first plugging ring is fixedly arranged on the extrusion block and is positioned between the extrusion block and the sleeve, the cross section of the second plugging ring is trapezoidal, and the second plugging ring is fixedly connected with the first plugging ring.
7. The oil-proof servo motor for the numerical control machine tool is characterized in that: the elastic component comprises a retaining ring, a connecting sleeve, a spring, a connecting rod, a sliding block and a limiting ring, wherein the retaining ring is fixedly arranged on the extrusion block, the circumference of the connecting rod is arranged on the retaining ring, the sliding block is fixedly arranged at the free end of the connecting rod, one end of the connecting sleeve is fixedly arranged on the connecting ring and corresponds to the position of the connecting rod, the spring is arranged in the connecting sleeve, one end of the spring is fixedly connected with the bottom of the connecting sleeve, the other end of the spring is abutted against the sliding block, the limiting ring is arranged on the connecting sleeve, and the connecting rod penetrates out of the limiting ring.
8. The oil-proof servo motor for the numerical control machine tool is characterized in that: the fixed block that is provided with on the casing, keep off the ring and seted up in the position of fixed block and dodge the groove, the small opening has been seted up on the fixed block, logical groove has been seted up on the sleeve, lead to groove and small opening intercommunication, and the sectional area of small opening is greater than the sectional area that leads to the groove, the flowing groove has been seted up on the casing, flowing groove and small opening intercommunication, the end of flowing groove is provided with the stopper post, the stopper post is the transparence.
9. The oil-proof servo motor for the numerical control machine tool according to claim 8, is characterized in that: the flow groove is inclined.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210243402.9A CN114709961A (en) | 2022-03-11 | 2022-03-11 | Oil-proof servo motor for numerical control machine tool |
| PCT/CN2022/111974 WO2023168904A1 (en) | 2022-03-11 | 2022-08-12 | Oil-proof servo motor for computer numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210243402.9A CN114709961A (en) | 2022-03-11 | 2022-03-11 | Oil-proof servo motor for numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114709961A true CN114709961A (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210243402.9A Pending CN114709961A (en) | 2022-03-11 | 2022-03-11 | Oil-proof servo motor for numerical control machine tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114709961A (en) |
| WO (1) | WO2023168904A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023168904A1 (en) * | 2022-03-11 | 2023-09-14 | 浙江欣立电器科技有限公司 | Oil-proof servo motor for computer numerical control machine tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101844680B1 (en) * | 2016-10-25 | 2018-04-02 | 현대위아 주식회사 | Structure for preventing dust inflow for driving system |
| CN212928731U (en) * | 2020-06-23 | 2021-04-09 | 南京中船绿洲机器有限公司 | Shaft end sealing structure of marine motor |
| CN212518628U (en) * | 2020-08-12 | 2021-02-09 | 杭州盛嘉达电机有限公司 | Motor flange and sealing mechanism thereof |
| CN213461349U (en) * | 2020-11-27 | 2021-06-15 | 济南永胜机械科技有限公司 | Motor end cover of prevention of seepage oil |
| CN112762173B (en) * | 2021-01-18 | 2023-06-20 | 洛阳佰工工业密封有限公司 | Mechanical seal assembly structure capable of avoiding oil seal leakage |
| CN114709961A (en) * | 2022-03-11 | 2022-07-05 | 浙江欣立电器科技有限公司 | Oil-proof servo motor for numerical control machine tool |
-
2022
- 2022-03-11 CN CN202210243402.9A patent/CN114709961A/en active Pending
- 2022-08-12 WO PCT/CN2022/111974 patent/WO2023168904A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023168904A1 (en) * | 2022-03-11 | 2023-09-14 | 浙江欣立电器科技有限公司 | Oil-proof servo motor for computer numerical control machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023168904A1 (en) | 2023-09-14 |
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