CN115638233A - Self-lubricating gear reducer - Google Patents
Self-lubricating gear reducer Download PDFInfo
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- CN115638233A CN115638233A CN202211345889.8A CN202211345889A CN115638233A CN 115638233 A CN115638233 A CN 115638233A CN 202211345889 A CN202211345889 A CN 202211345889A CN 115638233 A CN115638233 A CN 115638233A
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Abstract
The utility model provides a self-lubricating formula gear reducer, the power distribution box comprises a box body, output shaft and input shaft, be equipped with intermeshing's pinion and gear wheel in the box, the pinion cup joints with the input shaft, the gear wheel cup joints with the output shaft, still include the cavity coupling, the cover has lubricated gear on the cavity coupling, lubricated gear and pinion or gear wheel meshing, lubricated gear is established in pinion or gear wheel top, cavity coupling both ends respectively are equipped with hollow body, outer body is constituteed to cavity coupling and hollow body, the hollow body is equipped with the inner conical surface, cavity coupling inner wall is equipped with the arc cavity, the cavity coupling is equipped with a plurality of perforating holes along circumference, the problem of traditional self-lubricating formula reducer magazine participation lubrication repeatedly and because excessive filling causes lubricating grease running resistance to increase has been solved.
Description
Technical Field
The invention relates to the field of speed reducers, in particular to a self-lubricating type gear speed reducer.
Background
The speed reducer is a transmission assembly, generally plays a role in reducing the rotating speed of a power end and increasing torque, wherein a box-type gear speed reducer is more common, and lubricating oil or lubricating grease is generally adopted for lubricating the box-type gear speed reducer.
When the gear reducer is engaged, the double teeth rub against each other or cause relatively uniform wear, especially when the reducer is newly installed without running-in. Due to the presence of lubricating grease, the abraded fine particles generally adhere to the grease and are thrown away as the gears rotate and accumulate at the lower end of the housing.
Traditional self-lubricating formula reduction gear is mainly through filling the lubricating oil of a take the altitude or at gear surface coating excess lubricating grease in the lower extreme in the box, and the former can cause the repeated participation of the fine particle that the wearing and tearing got off lubricated, causes a larger amount of wearing and tearing, and the latter then can make the gear cause too big running resistance at the meshing in-process.
Disclosure of Invention
The invention provides a self-lubricating gear reducer, which solves the problems that magazines of the traditional self-lubricating gear reducer repeatedly participate in lubrication and the running resistance is increased due to excessive filling of lubricating grease.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a self-lubricating formula gear reducer, the power distribution box comprises a box body, output shaft and input shaft, be equipped with intermeshing's pinion and gear wheel in the box, the pinion cup joints with the input shaft, the gear wheel cup joints with the output shaft, still include the cavity coupling, the cover has lubricated gear on the cavity coupling, lubricated gear and pinion or gear wheel meshing, lubricated gear is established in pinion or gear wheel top, cavity coupling both ends respectively are equipped with hollow body, outer body is constituteed to cavity coupling and hollow body, hollow body is equipped with the inner cone, cavity coupling inner wall is equipped with the arc cavity, the cavity coupling is equipped with a plurality of perforating holes along circumference.
In the preferred scheme, a detachable inner pipe is sleeved in the outer pipe body, and a plurality of oil leakage channels are arranged on the inner pipe along the circumferential direction.
In the preferred scheme, a first end cover and a second end cover are respectively arranged at two ends of the inner pipe, and a central hole is formed in the second end cover.
In the preferred scheme, the through hole is a stepped hole and comprises a small hole part and a large hole part, a slidable movable oil sealing terminal is arranged in the through hole and provided with a sealing head, the sealing head is used for sealing the small hole part of the through hole, one end, close to the sealing head, of the movable oil sealing terminal is provided with a magnetic ring piece, the magnetic ring piece adsorbs the step end face of the large hole part of the through hole, and the outer wall of the movable oil sealing terminal is provided with a plurality of oil passing grooves along the circumferential direction.
In the preferred scheme, an adsorption column body is arranged in the inner pipe, and the adsorption column body is of a porous fluffy structure.
In the preferred scheme, the center of the adsorption column body is provided with a counter bore which is communicated with the center hole, and the adsorption column body is further provided with a conveying device, wherein the conveying device comprises an oil storage cylinder and a conveying oil pipe, the oil center hole at one end of the conveying oil pipe is inserted into the center counter bore of the adsorption column body, the other end of the conveying oil pipe is communicated with the inside of the oil storage cylinder, and the center hole is provided with a plurality of cutting grooves along the circumferential direction.
In the preferred scheme, still be equipped with the guide block, be equipped with the piston rod that the slip cup jointed in the guide block, be equipped with the blind hole in the piston rod, blind hole one end and delivery oil pipe intercommunication, the blind hole lateral wall is equipped with the inlet port, is equipped with the slidable fly leaf in the oil storage section of thick bamboo, and the fly leaf is equipped with first spring in order to last the lubricating grease in the extrusion oil storage section of thick bamboo, and the guide block is equipped with middle inlet port, and middle inlet port and oil storage section of thick bamboo intercommunication, and the intercommunication state of middle inlet port and inlet port is changeable.
In the preferred scheme, one side of the guide block, which is far away from the oil conveying pipe, is provided with a fixed block, the fixed block is provided with an air cavity, the air cavity is provided with an air inlet and an air outlet, one end of the piston rod is in sliding sleeve connection with the air cavity, the outer side of the piston rod is sleeved with a second spring, and the two ends of the second spring are respectively abutted against the guide block and the piston rod.
In the preferred scheme, one end of the delivery oil pipe, which is far away from the piston rod, is closed, and the side wall of the delivery oil pipe is provided with a plurality of seepage holes.
In a preferred scheme, the oil seepage channel is in a strip shape, a circular hole shape or an elliptical hole shape.
The invention has the beneficial effects that: lubricating oil is conveyed in a meshing mode by adopting a hollow shaft and a lubricating gear with a plurality of sparse holes, so that the lubrication is more uniform, and the problem of increased running resistance caused by excessive lubricating grease is avoided; the lubricating structure can be arranged above the running transmission gear, dirty lubricating oil drops downwards and cannot cause pollution to the lubricating gear, newly conveyed lubricating grease is always kept in a clean state, and the lubricating effect is improved; the lubricating grease can be conveniently conveyed on line, and the machine does not need to be stopped when the lubricating grease is newly added and the dirty grease is replaced; the movable oil sealing terminal has the functions of throttling and pressure maintaining in the preferred scheme, and unnecessary waste caused by the fact that lubricating grease gushes and drops due to overlarge pressure of the oiling machine when lubricating oil is supplemented is avoided.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a schematic of the present invention.
Fig. 2 is an internal layout view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a cross-sectional view of the optimized structure of the present invention.
Fig. 5 is a schematic view of the inner tube of the present invention.
Fig. 6 is a partial enlarged view of the inner tube of the present invention.
Fig. 7 is a schematic view of the movable oil seal terminal of the present invention.
Fig. 8 is a schematic view of a second end cap of the present invention.
FIG. 9 is an expanded optimization schematic diagram of the present invention.
FIG. 10 is a schematic view of the grease delivery device of the present invention.
In the figure: a hollow pipe body 1; an inner conical surface 101; an inner tube 2; an oil-bleeding passage 201; a hollow boss 3; a through hole 301; an arcuate cavity 302; a movable oil seal terminal 303; a plugging head 304; a magnetic ring piece 305; an oil-passing groove 306; a first end cap 4; a second end cap 5; a central bore 501; a notch 502; an adsorption column 6; lubricating the gear 7; a pinion gear 8; a bull gear 9; a case 10; a deposition tank 1001; an oil drain hole 1002; an oil guiding bevel 1003; an output shaft 11; an input shaft 12; a conveying device 13; the reservoir 1301; a movable plate 1302; a first spring 1303; a piston rod 1304; an oil inlet 1305; a second spring 1306; a transfer tubing 14; a weep hole 1401; a guide block 15; a middle inlet 1501; a fixed block 16; an air cavity 1601.
Detailed Description
As shown in fig. 1-10, a self-lubricating gear reducer comprises a hollow shaft joint 3, a lubricating gear 7 is sleeved on the hollow shaft joint 3, two ends of the hollow shaft joint 3 are respectively provided with a hollow tube body 1, the hollow shaft joint 3 and the hollow tube body 1 form an outer tube body, an inner tube 2 is sleeved in the outer tube body, the inner tube 2 is provided with a plurality of oil-permeable channels 201 along the circumferential direction, the hollow tube body 1 is provided with an inner conical surface 101, and the hollow shaft joint 3 is provided with a plurality of through holes 301 along the circumferential direction.
Different grease delivery rates can be controlled by replacing the inner tubes 2 of different oil-permeable channels 201, for example, the inner tube 2 of the smaller oil-permeable channel 201 can be replaced for the case where the rotation speed of the input shaft 12 is large, and the inner tube 2 with the larger oil-permeable channel 201 can be replaced for the case where the rotation speed of the input shaft 12 is low.
The reducer is provided with a pinion 8 and a gearwheel 9, the pinion 8 is provided with an input shaft 12, the gearwheel 9 is provided with an output shaft 11, and the lubricating gear 7, the pinion 8 and the gearwheel 9 are all arranged inside a box 10.
The lubricating gear 7 is made of felt materials and can uniformly disperse lubricating grease, the lubricating gear 7 is meshed with the pinion gear 8, the tooth surface of the pinion gear 8 is uniformly coated and lubricated, the pinion gear 8 is meshed with the bull gear 9 and then transfers the grease to the meshed bull gear 9, the lubricating gear 7 is positioned above the pinion gear 8 in the box body 10, most of wear fine particles generated in the meshing process of the bull gear 9 and the pinion gear 8 are centrifugally thrown out along the lubricating grease and flow to the deposition groove 1001 along the inner wall of the box body 10 and the oil guide inclined surface 1003 to be accumulated, the leaked lubricating oil in the lubricating gear 7 is always clean lubricating oil, a transparent observation window can be arranged on the side wall of the box body 10 at the deposition groove 1001, and when the dirty grease accumulated in the deposition groove 1001 is observed to be close to the lower end of the bull gear 9, the oil drain hole 1002 is opened, and the dirty grease is drained.
Because the two ends of the outer pipe body are small and the middle of the outer pipe body is large, the structure is difficult to process, in order to reduce the manufacturing process, the outer pipe body is divided into three parts, namely a hollow shaft joint 3 and hollow pipe bodies 1 at two ends, a sealing ring is arranged at a joint for sealing, a shaft shoulder is arranged at one end of the hollow shaft joint 3, a lubricating gear 7 is sleeved on the outer side surface of the hollow shaft joint 3, and the other end of the lubricating gear is locked by a threaded ring retaining ring.
In a preferred scheme, a first end cover 4 and a second end cover 5 are respectively arranged at two ends of the inner pipe 2, the second end cover 5 is provided with a central hole 501, and the central hole 501 is provided with a plurality of cutting grooves 502 along the circumferential direction.
The second end cap 5 can be made of rubber, lubricating oil and grease are supplemented into the inner pipe 2 from the central hole 501 through an oil delivery pipe, and the notch 502 can improve the deformation capacity of the orifice of the central hole 501.
The defeated oil pipe can guarantee to insert the state of centre bore 501 to not take out, because the existence of lubricating medium and the loose fit of centre bore 501 with the conveyer pipe, even rotate and also can not cause great frictional resistance, make things convenient for online supplementary lubricated grease when rotatory.
Because the viscosity of the lubricating oil and grease is high and the cutting groove 502 is narrow, the grease is difficult to naturally seep out of the cutting groove 502, and when the shaft body rotates rapidly, the grease is concentrated on the inner wall of the inner pipe 2, a cavity is formed in the middle, the cutting groove 502 is short, and the grease avoids the cutting groove 502.
In the preferred scheme, an adsorption column body 6 is arranged in the inner pipe 2, and the adsorption column body 6 is of a porous fluffy structure.
The adsorption column 6 can be made of sponge material, and plays a good role in adsorbing and maintaining low-viscosity lubricating grease or lubricating oil.
If the adsorption column 6 is directly installed in the outer tube body, the adsorption column 6 is difficult to manufacture and install and poor in adhesion tightness due to the special shape of the inner tube body, and the adsorption column 6 is in a uniform contact state in the length direction without a special processing technology due to the fact that the inner tube 2 is a hollow tube with the same diameter and the adsorption column 6 is in a cylindrical shape with the same diameter; and the existence of inner tube 2 makes and constitutes the big small crack district in middle of the one deck between the outer body, and under the existence that has the absorption cylinder 6, the grease is advanced to be gone into the crack district, and the axial is assembled to the centre again, does not receive the hindrance of the 6 bodies of absorption cylinder for it is more smooth and easy to go out oil fat.
In a preferred scheme, the through hole 301 is a stepped hole, the through hole 301 includes a small hole portion and a large hole portion, a movable oil sealing terminal 303 capable of sliding axially is arranged in the through hole 301, the movable oil sealing terminal 303 is provided with a sealing head 304, the sealing head 304 is used for sealing the small hole portion of the through hole 301, one end of the movable oil sealing terminal 303 close to the sealing head 304 is provided with a magnetic ring piece 305, the magnetic ring piece 305 adsorbs a stepped end face of the large hole portion of the through hole 301, and the outer wall of the movable oil sealing terminal 303 is provided with a plurality of oil through grooves 306 along the circumferential direction.
When the axis body is static, under the absorption of magnetic ring piece 305, the through-hole 301 is sealed to activity oil seal terminal 303, and the grease that has carried lubricated gear 7 this moment can not be along with inside gravity fall back to outer body, and the internal grease of outer tube also can not continue to the lower extreme infiltration because of gravity, when static when not needing to lubricate promptly, the lubrication process can be automatic to be suspended, avoids the waste of lubricated grease.
In addition, because the through hole 301 is closed, grease is conveyed at the moment, the outer tube body can keep a certain pressure, when the grease in the outer tube body is accumulated to a certain degree, the pressure reaches a certain value, the movable oil sealing terminal 303 at the lower end can not be immediately opened due to the fact that the magnetic force can not maintain the adsorption, the internal pressure and the external pressure are kept balanced, however, due to the throttling effect of the oil passing groove 306 on the through hole 301, the grease is prevented from directly rushing out of the through hole 301 along with high pressure, when the grease is continuously accumulated, all the movable oil sealing terminals 303 are opened, but the grease supplementing process is nearly finished at the moment, and therefore a large amount of grease is prevented from seeping and dropping.
The magnetic ring piece 305 has limited adsorption force, only the self weight of the movable oil sealing terminal 303 is maintained, when the shaft body rotates, the magnetic ring piece 305 is separated from the step end face of the large hole part of the through hole 301, at the moment, the movable oil sealing terminal 303 moves outwards, the sealing head 304 can not seal the small hole part of the through hole 301 any more, the lubricating grease in the outer pipe body enters the small hole part of the through hole 301 firstly and then flows to the inner wall of the lubricating gear 7 through the oil grooves 306, and the oil grooves 306 are multiple in number, so that the function of dispersing the grease can be achieved.
In a preferred scheme, the inner wall of the hollow shaft joint 3 is provided with an arc-shaped concave cavity 302.
The inner conical surface 101 of the arc-shaped concave surface matched with the hollow pipe body 1 can effectively gather grease to the middle part area of the through hole 301 distributed on the inner wall of the hollow shaft joint 3 when the shaft body rotates.
In a preferable scheme, a counter bore is formed in the center of the adsorption column body 6 and is communicated with the center hole 501, a conveying device 13 is further arranged, the conveying device 13 comprises an oil storage cylinder 1301 and a conveying oil pipe 14, the oil center hole 501 at one end of the conveying oil pipe 14 is inserted into the counter bore in the center of the adsorption column body 6, the other end of the conveying oil pipe 14 is communicated with the inside of the oil storage cylinder 1301, and a plurality of cutting grooves 502 are formed in the center hole 501 in the circumferential direction.
In a preferable scheme, the oil storage device is further provided with a guide block 15, a piston rod 1304 which is sleeved in a sliding mode is arranged in the guide block 15, a blind hole is arranged in the piston rod 1304, one end of the blind hole is communicated with the oil conveying pipe 14, an oil inlet 1305 is formed in the side wall of the blind hole, a slidable movable plate 1302 is arranged in the oil storage cylinder 1301, a first spring 1303 is arranged on the movable plate 1302 to continuously extrude lubricating grease in the oil storage cylinder 1301, a middle inlet 1501 is formed in the guide block 15, the middle inlet 1501 is communicated with the oil storage cylinder 1301, and the communication state of the middle inlet 1501 and the oil inlet 1305 can be switched.
The oil storage cylinder 1301 is provided with a sealing cover, two ends of the first spring 1303 are respectively abutted against the sealing cover and the movable plate 1302, grease in the oil storage cylinder 1301 keeps continuous conveying pressure, the piston rod 1304 can transversely slide, when the grease is required to be supplemented into the shaft body, the piston rod 1304 can be slid to enable the middle inlet hole 1501 to be communicated with the oil inlet hole 1305, and the piston rod 1304 is slid to enable the middle inlet hole 1501 to be staggered with the oil inlet hole 1305 after the supplementation is finished, so that a channel is closed.
In the preferred scheme, a fixed block 16 is arranged on one side, away from the oil conveying pipe 14, of the guide block 15, an air chamber 1601 is arranged on the fixed block 16, an air inlet and outlet is arranged on the air chamber 1601, one end of the piston rod 1304 is slidably sleeved with the air chamber 1601, a second spring 1306 is sleeved on the outer side of the piston rod 1304, and two ends of the second spring 1306 abut against the guide block 15 and the piston rod 1304 respectively.
The contact part of the piston rod 1304 and the air cavity 1601 has a large diameter, the second spring 1306 can abut against the contact part to continuously apply thrust, and the external valve body controls ventilation or pulse ventilation to the air inlet and outlet of the air cavity 1601 to push the piston rod 1304, so that the middle inlet hole 1501 is communicated with the oil inlet hole 1305.
In a preferred scheme, one end of the conveying oil pipe 14 far away from the piston rod 1304 is closed, and a plurality of seepage holes 1401 are formed in the side wall of the conveying oil pipe 14.
The seepage holes 1401 can ensure that all parts of the adsorption column 6 can be uniformly supplemented with grease.
In a preferred embodiment, the oil-permeable channel 201 is in a shape of a strip, a circular hole or an elliptical hole.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and includes equivalents of technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. A self-lubricating gear reducer is characterized in that: the hollow shaft joint comprises a box body (10), an output shaft (11) and an input shaft (12), wherein a pinion (8) and a gear wheel (9) which are meshed with each other are arranged in the box body (10), the pinion (8) is sleeved with the input shaft (12), the gear wheel (9) is sleeved with the output shaft (11), the hollow shaft joint further comprises a hollow shaft joint (3), a lubricating gear (7) is sleeved on the hollow shaft joint (3), the lubricating gear (7) is meshed with the pinion (8) or the gear wheel (9), the lubricating gear (7) is arranged above the pinion (8) or the gear wheel (9), hollow pipe bodies (1) are respectively arranged at two ends of the hollow shaft joint (3), the hollow shaft joint (3) and the hollow pipe bodies (1) form an outer pipe body, the hollow pipe body (1) is provided with an inner conical surface (101), the inner wall of the hollow shaft joint (3) is provided with an inner conical concave cavity (302), and the hollow shaft joint (3) is provided with a plurality of through holes (301) along the circumferential direction.
2. The self-lubricating gear reducer of claim 1, wherein: the detachable inner tube (2) is sleeved in the outer tube body, and a plurality of oil leakage channels (201) are arranged on the inner tube (2) along the circumferential direction.
3. The self-lubricating gear reducer of claim 2, wherein: the two ends of the inner pipe (2) are respectively provided with a first end cover (4) and a second end cover (5), and the second end cover (5) is provided with a central hole (501).
4. The self-lubricating gear reducer of claim 3, wherein: the through hole (301) is a stepped hole, the through hole (301) comprises a small hole part and a large hole part, a slidable movable oil sealing terminal (303) is arranged in the through hole (301), the movable oil sealing terminal (303) is provided with a sealing head (304), the sealing head (304) is used for sealing the small hole part of the through hole (301), one end, close to the sealing head (304), of the movable oil sealing terminal (303) is provided with a magnetic ring piece (305), the magnetic ring piece (305) adsorbs a step end face of the large hole part of the through hole (301), and a plurality of oil passing grooves (306) are formed in the outer wall of the movable oil sealing terminal (303) along the circumferential direction.
5. The self-lubricating gear reducer of claim 4, wherein: an adsorption column body (6) is arranged in the inner pipe (2), and the adsorption column body (6) is of a porous fluffy structure.
6. The self-lubricating gear reducer of claim 1, wherein: the center of the adsorption column body (6) is provided with a counter bore which is communicated with the center hole (501), the adsorption column body is further provided with a conveying device (13), the conveying device (13) comprises an oil storage cylinder (1301) and a conveying oil pipe (14), the oil center hole (501) at one end of the conveying oil pipe (14) is inserted into the center counter bore of the adsorption column body (6), the other end of the conveying oil pipe (14) is communicated with the inside of the oil storage cylinder (1301), and the center hole (501) is provided with a plurality of cutting grooves (502) along the circumferential direction.
7. The self-lubricating gear reducer of claim 6, wherein: still be equipped with guide block (15), be equipped with piston rod (1304) that the slip cup jointed in guide block (15), be equipped with the blind hole in piston rod (1304), blind hole one end and delivery tube (14) intercommunication, the blind hole lateral wall is equipped with inlet port (1305), be equipped with slidable fly leaf (1302) in oil storage section of thick bamboo (1301), fly leaf (1302) are equipped with first spring (1303) in order to last the lubricated grease in extruding oil storage section of thick bamboo (1301), guide block (15) are equipped with middle inlet port (1501), middle inlet port (1501) and oil storage section of thick bamboo (1301) intercommunication, the intercommunication state of middle inlet port (1501) and inlet port (1305) is changeable.
8. The self-lubricating gear reducer of claim 7, wherein: one side that oil pipe (14) were kept away from in guide block (15) is equipped with fixed block (16), and fixed block (16) are equipped with air cavity (1601), and air cavity (1601) are equipped with the air inlet and outlet, and piston rod (1304) one end and air cavity (1601) slip cup joint, and piston rod (1304) outside cover has second spring (1306), and second spring (1306) both ends lean on guide block (15) and piston rod (1304) respectively.
9. The self-lubricating gear reducer of claim 6, wherein: one end of the oil conveying pipe (14) far away from the piston rod (1304) is closed, and a plurality of seepage holes (1401) are formed in the side wall of the oil conveying pipe (14).
10. The self-lubricating gear reducer of claim 2, wherein: the oil seepage channel (201) is in a strip shape, a circular hole shape or an elliptical hole shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211345889.8A CN115638233A (en) | 2022-10-31 | 2022-10-31 | Self-lubricating gear reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211345889.8A CN115638233A (en) | 2022-10-31 | 2022-10-31 | Self-lubricating gear reducer |
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| Publication Number | Publication Date |
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| CN115638233A true CN115638233A (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211345889.8A Pending CN115638233A (en) | 2022-10-31 | 2022-10-31 | Self-lubricating gear reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085452A (en) * | 2023-04-13 | 2023-05-09 | 江苏泰隆减速机股份有限公司 | Industrial robot joint RV speed reducer |
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2022
- 2022-10-31 CN CN202211345889.8A patent/CN115638233A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116085452A (en) * | 2023-04-13 | 2023-05-09 | 江苏泰隆减速机股份有限公司 | Industrial robot joint RV speed reducer |
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