CN106678285A - Normally closed walking speed reducer - Google Patents
Normally closed walking speed reducer Download PDFInfo
- Publication number
- CN106678285A CN106678285A CN201710099742.8A CN201710099742A CN106678285A CN 106678285 A CN106678285 A CN 106678285A CN 201710099742 A CN201710099742 A CN 201710099742A CN 106678285 A CN106678285 A CN 106678285A
- Authority
- CN
- China
- Prior art keywords
- spring
- normally closed
- speed reducer
- gear
- baffle plate
- 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.)
- Pending
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Abstract
The invention provides a normally closed walking speed reducer. The normally closed walking speed reducer comprises three functional parts: a transmission part, a braking part, and a braking relief part. The transmission part includes a second-grade planet row and a hub; the braking part includes an input shaft, a gland, a piston, a friction plate set, and an oil cylinder integrated with a second-grade planet rack; and the braking relief part includes a first spring, a spline shaft, an ejector rod, a first-grade sun gear with a through hole, an end cover, and a baffle plate. In the normally closed walking speed reducer, firstly, the input shaft, a deep groove ball bearing and a retainer ring are assembled on the second-grade planet rack shared by the braking part and the transmission part; then, such standard pieces as a guide sleeve, the piston, a second spring, the gland, an O-shaped ring and the retainer ring are assembled in an inner cavity of the second-grade planet rack; then, the first spring, the spline shaft, the hub, a second-grade planet gear, the second-grade planet row, a first-grade planet row, and an inner gear ring shared by the first-grade planet row and the second-grade planet row are assembled on the second-grade planet rack; and finally, the end cover, the top cover and the baffle plate are assembled on the inner gear ring.
Description
Technical field
The present invention relates to a kind of normally closed type driving speed reducer.
Background technology
Normally closed type driving speed reducer is as its name suggests to impart power to tire so as to drive the device of whole machine walking, this
Reductor mainly realizes two functions：1 power is transmitted, and drives the function of whole machine walking；2 power cuts, make whole machine remains stationary
Function.At present this reductor is quite varied in engineering machinery field application, but this normally closed type reductor has one to lack
Point：Once whole machine breaks down can not provide the failure of hydraulic oil to reductor, normally closed type wet braking reductor will be braked,
So as to cause whole machine to move.
The content of the invention
It is an object of the invention to provide a kind of normally closed type driving speed reducer, it includes three funtion parts：Running part；System
Dynamic part；Brake release part.Running part includes two-stage planet row, wheel hub；Brake portion include input shaft, gland, piston,
Friction plate group and with the oil cylinder that secondary planet frame is an entirety；Brake release part includes the first spring, splined shaft, top
Bar, the one-level sun gear with through hole, end cap and baffle plate.
To reach above-mentioned purpose, the normally closed type driving speed reducer that the present invention is provided first by input shaft and deep groove ball bearing,
Back-up ring is assembled on the secondary planet frame that brake portion is shared with running part, is then directed to set, piston, second spring, pressure
The standard component such as lid and O-ring, back-up ring is assemblied in secondary planet frame inner chamber；Secondly by the first spring, splined shaft and wheel hub, two grades
The shared ring gear of planetary gear, primary planet row and I and II planet row is assemblied on secondary planet frame；Finally by end cap, top
Lid and baffle plate are assembled on ring gear.
Normally closed type reductor in the invention is running into machine failure, during the situation that brake portion cannot be opened, can be by
Baffle plate is removed and reversely installed, and by the boss on baffle plate push rod is killed, and push rod props up splined shaft through one-level sun gear through hole, flower
Key axle extrusion spring, so that splined shaft produces a certain amount of displacement in axial direction, causes the internal spline and one-level of splined shaft
Sun gear external splines is disengaged, and then cuts off the connection releasing braking of brake portion and running part, wheel hub is freely rotated,
Whole machine can normally run.
Description of the drawings
Fig. 1 is embodied as structural representation for one kind that the present invention provides reductor；
Fig. 2 is the running part structural representation of the present invention；
Fig. 3 is the brake portion structural representation of the present invention；
Fig. 4 is the brake release part-structure schematic diagram of the present invention.
In Fig. 1-4：1. the lip-type seal of 2. outside framework oil seal of secondary planet wheel carrier, 3. wheel hub, 4. taper roll bearing, 5. gland 6.
Circle
7. the back-up ring of 8. fairlead of piston, 9. 13. deep groove ball bearing of input shaft 10.O shapes circle 11. locking nut, 12. rim bolt 14.
The back-up ring of 15. back-up ring, 16. secondary planet wheel, 17. ring gear, 18. 21. secondary solar gear of primary planet wheel 19.O shapes 20. back-up ring of circle 22.
The screw plug 31. of 23. push rod, 24. one-level sun gear, 25. baffle plate, 26. hole back-up ring, 27. hole back-up ring, 28. primary planet carrier, 29. end cap 30. is spent
The driven disc 35.O shape circle 36.O shape circle baffle plate 37.O shape circle 38.O shape circles baffle plate 39. of 32. first spring of key axle, 33. rotating plate 34.
The screw of 40. back-up ring of second spring, 41. bolt 42..
Specific embodiment
With reference to the accompanying drawings and examples the present invention will be described.
The core of the present invention is to provide a kind of normally closed type driving speed reducer, and the driving speed reducer is grouped by three function parts
Into respectively：Running part, brake portion and brake release part.With reference to Fig. 1-4, Fig. 1 is provided by the present invention a kind of normal
The structural representation of enclosed driving speed reducer；Fig. 2 is the connection knot that running part includes I and II planet row and wheel hub 3 in Fig. 1
Structure schematic diagram；Fig. 3 is that brake portion includes secondary planet frame 16, gland 5, piston 7, the friction shared with running part in Fig. 1
The attachment structure schematic diagram of piece group and input shaft 9；Fig. 4 be the formulation releasing portion in Fig. 1 point include input shaft 9, the first spring,
The attachment structure schematic diagram of one-level sun gear 24, secondary solar gear, push rod 23, baffle plate and end cap 29.Below for this 3 kinds of machines
Structure is illustrated.
Running part：This is two-stage planetary reduction mechanism, and its drive path is input shaft 9 → splined shaft, 31 → one-level sun
16 → ring gear of wheel 24 → primary planet carrier, 28 → secondary solar gear, 21 → secondary planet wheel 17, wherein primary planet row are the sun
Wheel input planet carrier output, secondary planet row is sun gear input ring gear output.One or two grades of ring gears 17 are shared, while internal tooth
Circle 17 outputs power as output element, and this kind of structure has two kinds of advantages：1. compact conformation, intensity is high；2. one or two grades are compared
Ring gear separate structure effectively increases gear ratio, improves transmission efficiency.
Brake portion：The part be normally closed type wet braking structure, it by the secondary planet frame 16 shared with running part,
Gland 5, piston 7, second spring 39, fairlead 8, friction plate group, input shaft 9 are constituted.Wherein it is designed with 10 second on piston 7
The installing hole of spring 39, can match the spring of varying number to reach different braking effects according to user's request, meet different works
Condition demand.
Brake release part：This part by input shaft 9, the first spring 32, splined shaft 31, one-level sun gear 24, push rod 23,
O-ring, baffle plate 25, end cap 29 are constituted.Baffle plate boss is installed outwardly in normal work, now one in the presence of the first spring 32
The level external splines of sun gear 24 is engaged with the Inner splines of splined shaft 31, the transmission of power Jing running parts.When because abnormal conditions cause it is normally closed
Rotating vane type brake cannot be opened, reductor locking, when whole machine cannot be moved, you can reversely pacify the baffle plate 25 of brake portion
Dress, i.e., boss is installed inwardly, and the boss of baffle plate 25 puts in the high groove of section, extrudes push rod 23, and push rod 23 is applied to splined shaft 31, flower
Key axle 31 extrudes the first spring 32, compresses the first spring 32, and splined shaft 31 is moved axially and departed from one-level sun gear 24.This
Although when braking cannot open, one-level sun gear 24 departs from power transfer path, and clutch end is just free to rotate, real
Existing whole machine is emergent to be moved.
Claims (4)
1. a kind of normally closed type driving speed reducer, it is characterised in that including running part, brake portion and brake release part,
Running part includes two-stage planet row, wheel hub；
Brake portion include input shaft, gland, piston, friction plate group and with the oil cylinder that secondary planet frame is an entirety；
Brake release part includes the first spring, splined shaft, push rod, the one-level sun gear with through hole, end cap and baffle plate.
2. a kind of normally closed type driving speed reducer according to claim 1, it is characterised in that running part：This is two grades of rows
Star reducing gear, its drive path is input shaft → splined shaft → one-level sun gear → primary planet carrier → secondary solar gear → bis-
Level planetary gear → ring gear, wherein primary planet row are sun gear input planet carrier output, and secondary planet row is sun gear input
Ring gear is exported, and one or two grades of ring gears are shared, while ring gear outputs power as output element.
3. a kind of normally closed type driving speed reducer according to claim 1, it is characterised in that brake portion：The part is normal
Enclosed wet braking structure, it by the secondary planet frame, gland, piston, second spring, fairlead shared with running part, rub
Pad group, input shaft composition, are wherein designed with 10 second spring installing holes on piston.
4. a kind of normally closed type driving speed reducer according to claim 1, it is characterised in that brake release part：This part
It is made up of input shaft, the first spring, splined shaft, one-level sun gear, push rod, O-ring, baffle plate, end cap, baffle plate is convex in normal work
Platform is installed outwardly, and now one-level sun gear external splines is engaged with splined shaft Inner splines in the presence of the first spring, and power Jing is passed
Dynamic part is transmitted, and when causing normally closed type wet brake to open because of abnormal conditions, reductor locking, whole machine cannot be moved
When, you can the baffle plate of brake portion is reversely installed, i.e., boss is installed inwardly, baffle plate boss puts in the high groove of section, extruding top
Bar, push rod is applied to splined shaft, and splined shaft extrudes the first spring, makes the first spring-compressed, splined shaft axial movement and and one-level
Sun gear departs from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710099742.8A CN106678285A (en) | 2017-02-23 | 2017-02-23 | Normally closed walking speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710099742.8A CN106678285A (en) | 2017-02-23 | 2017-02-23 | Normally closed walking speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678285A true CN106678285A (en) | 2017-05-17 |
Family
ID=58861272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710099742.8A Pending CN106678285A (en) | 2017-02-23 | 2017-02-23 | Normally closed walking speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678285A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806495A (en) * | 2017-10-19 | 2018-03-16 | 章臣重工(苏州)有限公司 | It is a kind of that there is the driving speed reducer for releasing braking function |
| CN110594368A (en) * | 2019-10-12 | 2019-12-20 | 上海布拓传动系统设备有限公司 | High-load-capacity arm-frame type speed reducer |
| CN110594368B (en) * | 2019-10-12 | 2024-04-26 | 上海布拓传动系统设备有限公司 | High-load arm-of-force frame type speed reducer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267915A (en) * | 1992-08-31 | 1993-12-07 | Auburn Gear, Inc. | Planetary wheel drive assembly |
| CN101880015A (en) * | 2010-06-09 | 2010-11-10 | 江苏驰翔精密齿轮有限公司 | Hoisting speed reducer for crane |
| CN101956787A (en) * | 2010-09-01 | 2011-01-26 | 江苏驰翔精密齿轮有限公司 | Traveling speed reducer for crane |
| CN102748432A (en) * | 2012-07-24 | 2012-10-24 | 徐工集团工程机械股份有限公司科技分公司 | Speed reducer |
| CN106151389A (en) * | 2015-03-26 | 2016-11-23 | 徐州锦程行星传动有限公司 | A kind of band machinery disengages the driving speed reducer of function |
| CN206468755U (en) * | 2017-02-23 | 2017-09-05 | 徐州徐工传动科技有限公司 | A kind of normally closed type driving speed reducer |
-
2017
- 2017-02-23 CN CN201710099742.8A patent/CN106678285A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267915A (en) * | 1992-08-31 | 1993-12-07 | Auburn Gear, Inc. | Planetary wheel drive assembly |
| CN101880015A (en) * | 2010-06-09 | 2010-11-10 | 江苏驰翔精密齿轮有限公司 | Hoisting speed reducer for crane |
| CN101956787A (en) * | 2010-09-01 | 2011-01-26 | 江苏驰翔精密齿轮有限公司 | Traveling speed reducer for crane |
| CN102748432A (en) * | 2012-07-24 | 2012-10-24 | 徐工集团工程机械股份有限公司科技分公司 | Speed reducer |
| CN106151389A (en) * | 2015-03-26 | 2016-11-23 | 徐州锦程行星传动有限公司 | A kind of band machinery disengages the driving speed reducer of function |
| CN206468755U (en) * | 2017-02-23 | 2017-09-05 | 徐州徐工传动科技有限公司 | A kind of normally closed type driving speed reducer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806495A (en) * | 2017-10-19 | 2018-03-16 | 章臣重工(苏州)有限公司 | It is a kind of that there is the driving speed reducer for releasing braking function |
| CN110594368A (en) * | 2019-10-12 | 2019-12-20 | 上海布拓传动系统设备有限公司 | High-load-capacity arm-frame type speed reducer |
| CN110594368B (en) * | 2019-10-12 | 2024-04-26 | 上海布拓传动系统设备有限公司 | High-load arm-of-force frame type speed reducer |
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