CN202690995U - Bearing lubricating structure of reduction gearbox - Google Patents

Bearing lubricating structure of reduction gearbox Download PDF

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Publication number
CN202690995U
CN202690995U CN 201220304509 CN201220304509U CN202690995U CN 202690995 U CN202690995 U CN 202690995U CN 201220304509 CN201220304509 CN 201220304509 CN 201220304509 U CN201220304509 U CN 201220304509U CN 202690995 U CN202690995 U CN 202690995U
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CN
China
Prior art keywords
bearing
shaft
worm
speed reducer
thread
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN 201220304509
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Chinese (zh)
Inventor
曹建文
曹宇
王东平
陶维玉
周卫
李伟才
程敏蕾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU TONGRUN DRIVE EQUIPMENT CO Ltd
Suzhou Torin Drive Equipment Co Ltd
Original Assignee
SUZHOU TONGRUN DRIVE EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUZHOU TONGRUN DRIVE EQUIPMENT CO Ltd filed Critical SUZHOU TONGRUN DRIVE EQUIPMENT CO Ltd
Priority to CN 201220304509 priority Critical patent/CN202690995U/en
Application granted granted Critical
Publication of CN202690995U publication Critical patent/CN202690995U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a bearing lubricating structure of a reduction gearbox, and belongs to the technical field of bearing lubrication. The reduction gearbox comprises a driving shaft and a driven shaft, wherein the driving shaft is mounted inside the reduction gearbox through a bearing; the bearing lubricating structure comprises a rotating part and a shaft sleeve, wherein the rotating part is positioned above a threaded section of the driving shaft and fixed after being integrally manufactured with or split from the driving shaft; the bearing is arranged on the rotating part; one or more shaft sleeves are arranged on the driving shaft in a sleeving way from the lower end surface of the bearing to a shaft section of the threaded section; an oil inlet is formed at one end part of the shaft sleeve, which is close to the threaded section of the driving shaft; an oil outlet device is arranged on the rotating part close to the upper end surface of the bearing; spiral grooves /a spiral groove are/is formed on the rotating part and/or the shaft sleeve; in the rotating process of the rotating part, the oil inlet can be communicated with the oil outlet device through the spiral grooves/spiral groove; and when a gear pair of the reduction gearbox is in meshed transmission, lubricating oil is thrown into the oil inlet and then conveyed into the bearing through the spiral grooves/spiral groove and the oil outlet device. The bearing lubricating structure has the advantages of simple structure, low cost, good bearing lubricating effect and long service life, and is convenient to maintain.

Description

The bearing lubrication structure of speed reducer
Technical field
The utility model belongs to the bearing lubrication technical field, is specifically related to a kind of bearing lubrication structure of speed reducer, particularly is installed on the lubricating structure of the bearing of driving shaft top in the vertical the elevator traction machine gearbox
Background technique
At present, all there is relative sliding in various degree in rolling bearing between inner member in operation process, thereby cause frictional heating and component abrasion, in order to reduce wearing and tearing, to prevent corrosion, avoid to lubricate reliably because frictional heating causes that operating temperature is too high.The lubricating method of bearing roughly is divided into two kinds of grease lubrication and oil lubrications.The construction design of journal bearings of grease lubrication is simple, and lubricating grease can play very large seal action, and maintenance cost is low, long service life.But the character of lubricating grease is stable not as lubricant oil, and friction power loss is large, should not be in high speed and the large applications of temperature variation.So in the next employing oil lubrication of condition of high speed, high temperature, during oil lubrication, oil film formation and complementarity are good, also play the cooling heat dissipation effect, reduce the temperature rise of bearing.
As shown in Figure 1, vertical the elevator traction machine gearbox structure in the prior art, described speed reducer comprises worm shaft 1, main shaft 2, worm gear 3, casing 4, the two ends of worm shaft 1 place on the casing 4 rotationally by a pair of rolling bearing, and an end of worm shaft 1 extends to outside the casing 4 and links to each other with the motor (not shown), and the axial dependence worm shaft transparent cover 9 of worm shaft 1 is pushed down the outer ring of bearing 6 and realized axially locating.On casing 4, main shaft 2 middle cover are equipped with worm gear 3 to main shaft 2 by the rolling bearing hub setting, the thread section 101 intermeshing transmissions on worm gear 3 and the worm shaft 1.The inboard, lower end surface that is installed on the bearing 6 of worm shaft 1 top is pressed against on the axle rank of worm shaft 1, and the outside, the lower end surface of bearing 6 is pressed against on the oil sealing base 7, is arranged with the first oil sealing 8 between oil sealing base 7 and the worm shaft 1.The axially locating that realizes worm shaft 1 is pushed down by worm shaft transparent cover 9 in the outside, upper-end surface of bearing 6, also is provided with the second oil sealing 10 between worm shaft transparent cover 9 middle part inner rings and the worm shaft 1, and the inboard, upper-end surface of bearing 6 is fixed by locking nut 12.In this structure, be added with lubricating grease in the bearing 6, when sneaking into moisture, dust, abrasive dust, be difficult to separate; When worm shaft 1 under hot environment during high speed rotating, the bad stability of lubricating grease, friction moment is larger, and the wearing and tearing power consumption becomes large, causes vibration, noise, bearing life reduces greatly, so under this operating mode, just need to change frequently lubricating grease, but in order to change lubricating grease, the pipeline of supply and eliminating lubricating grease just must be set and collect used lubricating grease trap, cost is high, and structural design and replacing maintenance process are all more loaded down with trivial details.So under the operating mode of high temperature and high speed, this structure need to be used oil lubrication instead, circulation by lubricant oil, with a large amount of heat around the bearing running, and wash away impurity, but lubricant oil easily flows, thus need a kind of bearing lubrication structure with good guarantor's functional oil of design, with being transported in the bearing part of lubrication oil circulation.
For this reason, the applicant has carried out actively and effectively attempting, and technological scheme described below produces under this background
Summary of the invention
Task of the present utility model be to provide that a kind of high lubricating effect, structural design are simple, easy to maintenance, the bearing lubrication structure of long service life, speed reducer that cost is low.
Task of the present utility model is finished like this, a kind of bearing lubrication structure of speed reducer, described speed reducer comprises driving shaft, driven shaft, driving shaft and driven shaft are by the intermeshing transmission of thread section on the axle separately, driving shaft is installed in the speed reducer by bearing is vertical, be characterized in: described bearing lubrication structure comprises rotary component, axle sleeve
Described rotary component is positioned at the thread section top of driving shaft, fixes with driving shaft one formation or by coupling and driving shaft; Bearing is located on the rotary component; Shaft part cover from the bearing lower end surface to thread section on the driving shaft has one or more axle sleeves;
Offer filler opening in the sleeve end near the driving shaft thread section, at the rotary component near the bearing upper-end surface oil discharging device is set, have spiral chute at rotary component and/or axle sleeve, in the process that rotary component rotates, can be communicated with by spiral chute between filler opening and the oil discharging device;
During the gear pair engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then is transported in the bearing by spiral chute and oil discharging device.
In a specific embodiment of the present utility model, described speed reducer is worm reduction box, and described driving shaft is worm shaft, and worm shaft and driven shaft are by the intermeshing transmission of thread section on the axle separately.
In another specific embodiment of the present utility model, described rotary component is a part of shaft part of worm shaft, bearing is located on the worm shaft, a sheathed axle sleeve on the shaft part from the bearing lower end surface to thread section on the worm shaft, one side pressure of this axle sleeve is against on the thread section step of worm shaft, the other end is pressed against on the bearing lower end surface, the upper-end surface of bearing is fixed by bearing washer and locking nut, described spiral chute is opened on the worm shaft, described oil discharging device is for having groove at the worm screw shaft part near the bearing upper-end surface, have oil outlet at bearing washer, groove respectively with spiral chute, oil outlet is communicated with, during the worm and gear engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then passes through spiral chute, groove and oil outlet are transported in the bearing.
In another specific embodiment of the present utility model, described rotary component is a part of shaft part of worm shaft, bearing housing is located on the worm shaft, sheathed a plurality of axle sleeves on the shaft part from the bearing lower end surface to thread section on the worm shaft, on the thread section step that is pressed against bottom worm shaft of a plurality of axle sleeves, topmost be pressed against on the bearing lower end surface, the upper-end surface of bearing is fixed by bearing washer and locking nut, a described spiral fluted part is opened on the worm shaft, spiral fluted another part is opened on the axle sleeve, in the process that worm shaft rotates, the multistage spiral chute can be communicated with, described oil discharging device is for having groove at the worm screw shaft part near the bearing upper-end surface, have oil outlet at bearing washer, groove respectively with spiral chute, oil outlet is communicated with, during the worm and gear engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then passes through spiral chute, groove and oil outlet are transported in the bearing.
In another specific embodiment of the present utility model, described spiral fluted another part is opened on the inner ring of axle sleeve or is opened on the outer ring of axle sleeve.
Go back in the specific embodiment of the present utility model, described rotary component is a thread bush, this thread bush is fixed on the worm shaft by key, bearing is located on the thread bush, described axle sleeve is placed on the thread bush, one side pressure of axle sleeve is against on the thread section step of worm shaft, the other end of axle sleeve is pressed against on the bearing lower end surface, the upper-end surface of bearing is fixed by the boss on the thread bush, described spiral chute is opened on the thread bush, described oil discharging device is for having oil outlet at the thread bush near the bearing upper-end surface, spiral chute is communicated with oil outlet, during the worm and gear engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then is transported in the bearing by spiral chute and oil outlet.
In of the present utility model and then specific embodiment, described spiral chute is opened on the inner ring of thread bush or is opened on the outer ring of thread bush.
More of the present utility model and in specific embodiment, described spiral chute is unidirectional double end or multi-head spiral groove.
The utility model is because after adopting said structure, the beneficial effect that has: at first, speed reducer described in the utility model is mainly used in lift machine, utilize the engagement driving of speed reducer gear joint that the lubricant oil in the casing is got rid of into filler opening, then by spiral chute and oil discharging device lubricant oil is transported to and carries out oil lubrication in the bearing, and make the lubricant oil in the bearing keep certain amount, because lift machine can change sense of rotation when work, so the higher lubricant oil of temperature that is in top in the bearing is taken back in the speed reducer, realize circulating of bearing oil, lubricating bearings preferably, with the heat around the bearing running, wash away the impurity in the bearing, slowing down vibration reduces noise; Secondly, this structure has only increased axle sleeve and/or thread bush, and processes spiral chute at axle sleeve, thread bush or driving shaft, and utilize cleverly that existing lubricant oil is lubricated in the speed reducer, complicated oil supplying device is not set specially, and structural design is simple, and cost is low; Again, under the operating mode of high temperature and high speed, need not frequent lubricating oil filling, reduced the maintenance workload of bearing.
Description of drawings
Fig. 1 is the speed reducer bearing lubricating structure schematic representation in the prior art.
Fig. 2 is an example structure schematic representation of the present utility model.
Fig. 3 is another example structure schematic representation of the present utility model.
Fig. 4 is another example structure schematic representation of the present utility model.
Among the figure: 1. worm shaft, 101. thread sections, 102. grooves, 103. spiral chutes, 104. axle journals, 105. spiral chutes; 2. main shaft; 3. worm gear; 4. casing; 5. axle sleeve, 501. filler openings; 6. bearing; 7. oil sealing base; 8. the first oil sealing; 9. worm shaft transparent cover; 10. the second oil sealing; 11. bearing washer, 111. oil outlets; 12. locking nut; 13. thread bush, 131. second grooves, 132. spiral chutes; 14. the second axle sleeve, 141. filler openings, 142. inner spiral grooves.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the claimant general elaborates by reference to the accompanying drawings in embodiment's mode below, but all be not restriction to the utility model scheme to embodiment's description, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.
Embodiment 1
See also Fig. 2, in an embodiment of the present utility model, described speed reducer is the worm reduction box of lift machine, described driving shaft is worm shaft, the vertical installation of worm shaft, specifically: described speed reducer comprises worm shaft 1, main shaft 2, worm gear 3, casing 4, and worm shaft 1 two ends place on the casing 4 rotationally by rolling bearing, and an end of worm shaft 1 extends to, and casing 4 is outer to link to each other with the motor (not shown).Main shaft 2 is driven shaft, and its hub setting is on casing 4, and main shaft 2 middle cover are equipped with worm gear 3, the thread section 101 intermeshing transmissions on worm gear 3 and the worm shaft 1.Step place, the thread section 101 top gland of worm shaft 1 has an axle sleeve 5, the inboard, lower end surface of bearing 6 that is installed on thread section 101 tops of worm shaft 1 is pressed against on this axle sleeve 5, the outside, lower end surface of bearing 6 is pressed against on the oil sealing base 7, be arranged with the first oil sealing 8 between oil sealing base 7 and the axle sleeve 5, prevent that the lubricant oil in the bearing 6 from leaking downwards.The axially locating that realizes worm shaft 1 is pushed down by worm shaft transparent cover 9 in the outside, upper-end surface of bearing 6, also is provided with the second oil sealing 10 between worm shaft transparent cover 9 middle part inner rings and the worm shaft 1, prevents that bearing 6 lubricant oil on every side is to exosmosing.The inboard, upper-end surface of bearing 6 is fixed by bearing washer 11 and locking nut 12.Offering a groove 102 near the worm shaft 1 above the bearing 6, have several oil outlets 111 at bearing washer 11, groove 102 on the worm shaft 1 communicates with oil outlet 111 on the bearing washer 11, the groove 102 of worm shaft 1 has spiral chute 103 to the shaft part of thread section 101, spiral chute 103 is communicated with groove 102, have several filler openings 501 in axle sleeve 5 ends near thread section 101, in the process of worm shaft 1 rotation, spiral chute 103 can be communicated with filler opening 501.
Embodiment 2
See also Fig. 3, in another embodiment of the present utility model, described speed reducer is the worm reduction box of lift machine, described driving shaft is worm shaft, the vertical installation of worm shaft, speed reducer comprises worm shaft 1, main shaft 2, worm gear 3, casing 4, and worm shaft 1 two ends place on the casing 4 rotationally by rolling bearing, and an end of worm shaft 1 extends to, and casing 4 is outer to link to each other with the motor (not shown).Main shaft 2 is driven shaft, and its hub setting is on casing 4, and main shaft 2 middle cover are equipped with worm gear 3, the thread section 101 intermeshing transmissions on worm gear 3 and the worm shaft 1.Step place, the thread section 101 top gland of worm shaft 1 has an axle sleeve 5, the inboard, lower end surface that is installed on the bearing 6 on worm shaft 1 top is pressed against on this axle sleeve 5, the outside, lower end surface of bearing 6 is pressed against on the oil sealing base 7, be arranged with the first oil sealing 8 between oil sealing base 7 and the axle sleeve 5, prevent that the lubricant oil in the bearing 6 from leaking downwards.The axially locating that realizes worm shaft 1 is pushed down in the outside, upper-end surface of bearing 6 by worm shaft transparent cover 9.Be arranged with a thread bush 13 on the worm shaft 1, both are connected and fixed by key, the other end that one end of this thread bush 13 extends to axle sleeve 5 inner rings and is close to thread section 101, thread bush 13 extends to the outside of worm shaft transparent cover 9, be provided with the second oil sealing 10 between worm shaft transparent cover 9 middle part inner rings and the thread bush 13, prevent that bearing 6 lubricant oil on every side is to exosmosing.Bearing 6 is set on the outer ring of this thread bush 13, and its outside, upper-end surface is pressed by the boss of thread bush 13.Have the second groove 131 on the boss of thread bush 13, the outer round surface of thread bush 13 below the second groove 131 has spiral chute 132, spiral chute 132 is communicated with the second groove 131, have several filler openings 501 in axle sleeve 5 ends near thread section 101, in the process of worm shaft 1 rotation, spiral chute 132 can be communicated with filler opening 501.
Embodiment 3
See also Fig. 4, in another embodiment of the present utility model, described speed reducer is the worm reduction box of lift machine, described driving shaft is worm shaft, the vertical installation of worm shaft, speed reducer comprises worm shaft 1, main shaft 2, worm gear 3, casing 4, and worm shaft 1 two ends are by placing on the casing 4 that rolling bearing rotates, and an end of worm shaft 1 extends to, and casing 4 is outer to link to each other with the motor (not shown).Main shaft 2 is driven shaft, and its hub setting is on casing 4, and main shaft 2 middle cover are equipped with worm gear 3, the thread section 101 intermeshing transmissions on worm gear 3 and the worm shaft 1.Cover has between the worm screw shaft part of bearing 6 and the thread section 101 the less axle journal of a diameter 104 is arranged, so at axle journal 104 covers the second axle sleeve 14 is arranged, this second axle sleeve 14 is a thread bush, one side pressure of thread bush leans against on the step surface of thread section 101, the other end is pressed against in the groove of axle sleeve 5, the lower end surface of the other end spring bearing 6 of axle sleeve 5 is inboard, the outside, lower end surface of bearing 6 is pressed against on the oil sealing base 7, be arranged with the first oil sealing 8 between oil sealing base 7 and the axle sleeve 5, prevent that the lubricant oil in the bearing 6 from leaking downwards.The axially locating that realizes worm shaft 1 is pushed down by worm shaft transparent cover 9 in the outside, upper-end surface of bearing 6, also is provided with the second oil sealing 10 between worm shaft transparent cover 9 middle part inner rings and the worm shaft 1, prevents that bearing 6 lubricant oil on every side is to exosmosing.The inboard, upper-end surface of bearing 6 is fixed by bearing washer 11 and locking nut 12.Having a groove 102 near the worm shaft 1 above the bearing 6, have several oil outlets 111 on the bearing washer 11, the groove 102 on the worm shaft 1 communicates with oil outlet 111 on the bearing washer 11.Have inner spiral groove 142 on the inner ring of the second axle sleeve 14, have filler opening 141 in the second axle sleeve 14 ends near thread section 101, filler opening 141 is communicated with spiral chute 142.The groove 102 of worm shaft 1 also offers the spiral chute 105 that is communicated with groove 102 to the shaft part of axle journal 104, spiral chute 105 can be communicated with the inner spiral groove 142 on the second axle sleeve 14 in the process of worm shaft 1 rotation.
Application examples:
Narrate working principle of the present utility model below in conjunction with Fig. 2,3,4:
Can be added with lubricant oil in the gear reduction box of lift machine and be used for the lubrication driving gear pair, prolong the working life of gear pair.In embodiment 1, when the electrical power of lift machine, motor shaft drives worm shaft 1 to right rotation, the rotation of worm shaft 1 drives again the worm gear 3 that is engaged with and is rotated counterclockwise, at this moment, thread section 101 and worm gear 3 engagements are rotated, lubricant oil in the casing 1 is got rid of in the filler opening 501 of axle sleeve 5, because worm shaft 1 high speed rotating, got rid of lubricant oil in axle sleeve 5 filler openings 501 under the effect of centrifugal force by the spiral chute 103 on the shaft part, oil outlet 111 on groove 102 and the bearing washer 11 is transported to rapidly in the bearing 6, the engagement driving of worm and gear makes the lubricant oil in the bearing 6 keep certain amount, because the heat that the rolling friction of bearing 6 produces heats up the lubricant oil in the bearing 6, cause the low lubricant oil of temperature to be in the bottom of bearing 6, the lubricant oil that temperature is high is in the top of bearing 6, owing to can change sense of rotation during lift machine work, when motor shaft drives worm shaft 1 to anticlockwise, the worm gear 3 that is engaged with is rotated counterclockwise, the higher lubricant oil of temperature that is in bearing top is back in the speed reducer along spiral chute 103 by filler opening 111 and groove 102, and the lubricant oil that temperature is low is still stayed lubricating bearings 6 in the bearing 6.According to said process, when worm shaft 1 became again again to right rotation, the lubricant oil in the casing 1 was transported to again in the bearing 6, and guaranteeing has enough lubricant oil to be lubricated around the bearing.Left-handed and the dextrorotation at worm shaft 1 interval cooling so that the lubrication oil circulation around the bearing 6 flows, lubricating bearings 6 preferably, with the heat around the bearing running 6, wash away the impurity in the bearing 6.
In embodiment 2, the lubricant oil in the casing 4 enters from the filler opening 501 of axle sleeve 5, by spiral chute 132 on the thread bush 13 and the second groove 131 lubricant oil is transported in the bearing 6.In embodiment 3, lubricant oil in the casing 4 enters from the filler opening 141 of the second axle sleeve 14, spiral chute 105 by on inner spiral groove 142 and the worm shaft 1 on the second axle sleeve 14 is transported to top with lubricant oil, enters in the bearing 6 through groove 102 and filler opening 111 again.All the other are with the description to embodiment 1.
In order to improve the efficient of oil transportation, the spiral chute described in the various embodiments described above can be unidirectional double end or multi-head spiral groove

Claims (8)

1. A kind of bearing lubrication structure of speed reducer, described speed reducer comprises driving shaft, driven shaft, driving shaft and driven shaft are by the intermeshing transmission of thread section on the axle separately, driving shaft is installed in the speed reducer by bearing is vertical, it is characterized in that: described bearing lubrication structure comprises rotary component, axle sleeve
Described rotary component is positioned at the thread section top of driving shaft, fixes with driving shaft one formation or by coupling and driving shaft; Bearing is located on the rotary component; Shaft part cover from the bearing lower end surface to thread section on the driving shaft has one or more axle sleeves;
Offer filler opening in the sleeve end near the driving shaft thread section, at the rotary component near the bearing upper-end surface oil discharging device is set, have spiral chute at rotary component and/or axle sleeve, in the process that rotary component rotates, can be communicated with by spiral chute between filler opening and the oil discharging device;
During the gear pair engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then is transported in the bearing by spiral chute and oil discharging device.
2. The bearing lubrication structure of speed reducer according to claim 1 is characterized in that described speed reducer is worm reduction box, and described driving shaft is worm shaft, and worm shaft and driven shaft are by the intermeshing transmission of thread section on the axle separately.
3. The bearing lubrication structure of speed reducer according to claim 2, it is characterized in that described rotary component is a part of shaft part of worm shaft, bearing is located on the worm shaft, a sheathed axle sleeve on the shaft part from the bearing lower end surface to thread section on the worm shaft, one side pressure of this axle sleeve is against on the thread section step of worm shaft, the other end is pressed against on the bearing lower end surface, the upper-end surface of bearing is fixed by bearing washer and locking nut, described spiral chute is opened on the worm shaft, described oil discharging device is for having groove at the worm screw shaft part near the bearing upper-end surface, have oil outlet at bearing washer, groove respectively with spiral chute, oil outlet is communicated with, during the worm and gear engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then passes through spiral chute, groove and oil outlet are transported in the bearing.
4. The bearing lubrication structure of speed reducer according to claim 2, it is characterized in that described rotary component is a part of shaft part of worm shaft, bearing is located on the worm shaft, sheathed a plurality of axle sleeves on the shaft part from the bearing lower end surface to thread section on the worm shaft, on the thread section step that is pressed against bottom worm shaft of a plurality of axle sleeves, topmost be pressed against on the bearing lower end surface, the upper-end surface of bearing is fixed by bearing washer and locking nut, a described spiral fluted part is opened on the worm shaft, spiral fluted another part is opened on the axle sleeve, in the process that worm shaft rotates, the multistage spiral chute can be communicated with, described oil discharging device is for having groove at the worm screw shaft part near the bearing upper-end surface, have oil outlet at bearing washer, groove respectively with spiral chute, oil outlet is communicated with, during the worm and gear engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then passes through spiral chute, groove and oil outlet are transported in the bearing.
5. The bearing lubrication structure of speed reducer according to claim 4 is characterized in that described spiral fluted another part is opened on the inner ring of axle sleeve or is opened on the outer ring of axle sleeve.
6. The bearing lubrication structure of speed reducer according to claim 2, it is characterized in that described rotary component is a thread bush, this thread bush is fixed on the worm shaft by key, bearing is located on the thread bush, described axle sleeve is placed on the thread bush, one side pressure of axle sleeve is against on the thread section step of worm shaft, the other end of axle sleeve is pressed against on the bearing lower end surface, the upper-end surface of bearing is fixed by the boss on the thread bush, described spiral chute is opened on the thread bush, described oil discharging device is for having oil outlet at the thread bush near the bearing upper-end surface, spiral chute is communicated with oil outlet, during the worm and gear engagement driving of speed reducer, lubricant oil is dumped into filler opening, and then is transported in the bearing by spiral chute and oil outlet.
7. The bearing lubrication structure of speed reducer according to claim 6 is characterized in that described spiral chute is opened on the inner ring of thread bush or is opened on the outer ring of thread bush.
8. According to claim 1, the bearing lubrication structure of the described speed reducer of arbitrary claim in 3 to 7, it is characterized in that described spiral chute is unidirectional double end or multi-head spiral groove
CN 201220304509 2012-06-27 2012-06-27 Bearing lubricating structure of reduction gearbox Withdrawn - After Issue CN202690995U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220304509 CN202690995U (en) 2012-06-27 2012-06-27 Bearing lubricating structure of reduction gearbox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220304509 CN202690995U (en) 2012-06-27 2012-06-27 Bearing lubricating structure of reduction gearbox

Publications (1)

Publication Number Publication Date
CN202690995U true CN202690995U (en) 2013-01-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220304509 Withdrawn - After Issue CN202690995U (en) 2012-06-27 2012-06-27 Bearing lubricating structure of reduction gearbox

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705498A (en) * 2012-06-27 2012-10-03 苏州通润驱动设备股份有限公司 Bearing lubricating structure of reduction box
CN103812272A (en) * 2014-02-28 2014-05-21 成都大漠石油机械有限公司 Circulating cooling structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705498A (en) * 2012-06-27 2012-10-03 苏州通润驱动设备股份有限公司 Bearing lubricating structure of reduction box
CN102705498B (en) * 2012-06-27 2014-12-24 苏州通润驱动设备股份有限公司 Bearing lubricating structure of reduction box
CN103812272A (en) * 2014-02-28 2014-05-21 成都大漠石油机械有限公司 Circulating cooling structure

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Granted publication date: 20130123

Effective date of abandoning: 20141224