CN104565222A - Interlayer body zero-return-difference type general inner cycloidal reduction box - Google Patents
Interlayer body zero-return-difference type general inner cycloidal reduction box Download PDFInfo
- Publication number
- CN104565222A CN104565222A CN201510009118.5A CN201510009118A CN104565222A CN 104565222 A CN104565222 A CN 104565222A CN 201510009118 A CN201510009118 A CN 201510009118A CN 104565222 A CN104565222 A CN 104565222A
- Authority
- CN
- China
- Prior art keywords
- casing
- interlayer
- eccentric bushing
- input shaft
- ring
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- F16H57/04—Features relating to lubrication or cooling or heating
Abstract
The invention relates to the technical field of cycloidal reduction. An interlayer body zero-return-difference type general cycloidal reduction box comprises a box body and a cycloidal transmission part and is characterized in that a closed interlayer is formed through an outer wall of a connecting part of an inner circular barrel and a circular end cover and the inner wall of the box body, and the cooling is performed through water or air; an elastic gasket is arranged at the extending end of an input shaft; two eccentric sleeves are arranged between the gasket and an input shaft shoulder; teeth in the end surfaces of the eccentric sleeves engage with each other; the two eccentric sleeves are respectively connected to and freely sleeve the input shaft; a spring is arranged between a second single eccentric sleeve and the gasket; teeth of a cycloidal gear B is close to one clockwise side of a pin in an upper half area of a needle tooth housing; the teeth of a cycloidal gear A is close to one anticlockwise side of the pin at a lower half area of the needle gear housing; a phase angle of the two cycloidal wheels is less than 180 degrees; the needle tooth housing is connected into an inner hole in a stand, and the pins are embedded into half-buried holes. The interlayer body zero-return-difference type general cycloidal reduction box has the beneficial effects that water (or air) is charged into the interlayer, the structure is simple, and the cost is low; the bearing capacity is 1.5 to 2 times that of 80000 type cycloid; the HSE25-2 type (5000Nm) can be replaced; the weight is reduced by 30 to 40%; the manufacturing cost is decreased by 40 to 60%.
Description
[technical field]
The present invention relates to cycloid reduction technical field, relate in particular to the general hypocycloid speed reducer of a kind of interlayer casing zero return difference.
[background technique]
Hypocycloid is also belong to cycloid reduction technology, and prior art major defect is:
(1) thermal power is not high: not device fan and adopt other cooling measure on domestic B, X series cycloid speed reducer high speed shaft, natural heat dissipation is only relied on to cause thermal power low, user's increasing one, two types number of having to are made to carry out type selecting, many mechanical theory monographs are exactly specify so, its result necessarily increases expense, power is larger, expense increase is more: as specified 8255 types (weight 865kg, valency 2.68 ten thousand yuan), now strengthens a type number and selects 8265 (weight 1125kg, valencys 3.82 ten thousand yuan); 8270 (weight 2610kg, valencys 6.22 ten thousand yuan) are selected as strengthened two types number.
" Gear Transmission Design handbook " 972 pages is pointed out: thermal power be enclosed retarder under lubricant oil balanced temperature conditions the peak output that can transmit continuously.Thermal power should equal or be bordering on the power that real work is transmitted.
" design and manufaction of Planetary Involute Gear " 230 pages is pointed out: input power when thermal power refers to that under natural cool condition lubricating oil temperature is no more than allowable temperature.Thermal power is design lubrication system, selects the important evidence of retarder.
For solving the low defect of prior art thermal power, the object of the invention is to provide with water-cooled or air-cooled alternative natural heat dissipation in casing interlayer to improve thermal power.
(2) general cycloidal reducer return difference large (10 ' ~ 15 '), makes the above-mentioned advantage of general cycloid reduction technology cannot be used as large solar photovoltaic generating tracking drive device, cannot be used as bearing turntable for radar antenna drive unit.
Solar energy power generating tracking drive device, technological scheme both domestic and external is " multistage planet deceleration component+worm couple+worm anti-backlash mechanism ", in operation, main produced problem is: worm couple is larger as output stage volume, axial force is large, and long-time running there will be wearing and tearing, return difference increase and greatly affect positioning precision.The patent application " a kind of azimuth transmission device of heliostat " (201310115194.5) of gear-box company in Chongqing disclosed in Patent Office of the People's Republic of China, its technological scheme is " multistage planet deceleration component+worm couple+planet output block+planet anti-backlash mechanism ", and deficiency is: complex structure; Due to planet anti-backlash mechanism, the long half of ring gear tooth in planet output block is engaged with planet wheel, and second half engages with the gap planet wheel that disappears, thus bearing capacity reduces half.
" radar and antagonism " 2004.02 phases disclosed " a kind of brand-new bearing turntable for radar antenna ", it is the azimuth drive be directly made up of one " external three crank planetary speed reducer with small tooth number difference ", deficiency is: with high accuracy of manufacturing to realize little return difference, thus considerably increase manufacture cost, Involute Small Teeth Difference Planetary Gearing bearing capacity and efficiency are lower than cyclo drive.
[summary of the invention]
The object of the invention: propose the general inner swing line speed reducer of a kind of interlayer casing zero return difference, just the general cycloidal reducer of large thermal power, zero return difference can be obtained, to replace the slow speed turbine stage in the little return difference tracking drive device of existing solar energy power generating, or replace the slow speed turbine stage in the little return difference drive unit of existing bearing turntable for radar antenna.
[realizing the technological scheme of zero return difference]
Technological scheme is as follows:
Described inner cylinder flange is connected with casing output end face, the input end cylindrical of nose circle lid and casing input end endoporus close-fitting, the nose circle face of nose circle lid input end face and casing input end is tightly connected with same circle ring disk, the outer wall of inner cylinder and nose circle lid attachments and the inwall of casing enclose to connect and form airtight interlayer, casing top and side are respectively equipped with exhausting window and the axial-flow blower of UNICOM's closed interlayer, or casing top and side are respectively equipped with inlet valve and the outlet valve of UNICOM's closed interlayer;
Described input shaft axle stretch end is provided with circlip, first and second eccentric bushing is provided with between the shaft shoulder of described input shaft and circlip, first and second eccentric bushing end face described is lance tooth, tooth engages with tooth, described first eccentric bushing is connected on input shaft, described second eccentric bushing and input shaft are slided and are joined, and are provided with Returnning spring between described second eccentric bushing and circlip;
The described cycloid wheel B gear teeth and the counterclockwise side of hypocycloid gear ring upper half internal tooth are close to, and the described cycloid wheel A gear teeth and the clockwise side of hypocycloid gear ring bottom half internal tooth are close to, phase angle θ < 180 ° between two cycloid wheel;
Described pin wheel housing is connected to support endoporus, and described gear pin is located in pin wheel housing half buried via hole;
First and second eccentric bushing described first and second needle bearing or roller bearing are bearing in cycloid wheel B, A center hole respectively, described second eccentric bushing neck external diameter should be less than the second needle bearing or roller bearing inner ring external diameter, only promotes the second needle bearing roller bearing inner ring when the second eccentric bushing is moved vertically.
First and second eccentric bushing inner side end tooth described is wavy circle-arc tooth or sine, is similar to sinusoidal curve tooth.
The front end of described circlip is provided with a thrust-bearing, and the collar of described thrust-bearing is contained on input shaft, and loose ring is placed in output shaft disk endoporus.
[beneficial effect] the present invention is compared with general inner swing line speed reducer, and its beneficial effect is:
(1) outer wall of inner cylinder and nose circle lid encloses and connects formation closed interlayer, logical cooling water (or ventilation) in interlayer, particularly tap water, inflow passes through Valve controlling, the heat of the hot water in closed interlayer is discharged by flowing water Valve on the one hand and is taken away, the even thin walled cylinder passing to box-like body is on the other hand dispersed into outside casing, and cooling water capacity is large, heat diffusion area is simple throughout whole casing, structure, controls, easy to adjust, reliability is high, low cost of manufacture;
(2) when Oil-temperature control is at about 70 DEG C, the unlikely decline of oil temperature high viscosity, oil film is not damaged, thus ensures that cycloidal gear teeth and needle pin engagement pair run well under being in good lubrication state always, makes speed reducer have long useful life period.
(3) bearing capacity is 2-2.5 times of two general cycloidal reducer of fulcrum needle pin 8000 type;
(4) manufacturing process is simple, and zero return difference auto-compensation illustrates that return difference is bordering on zero, and the high-precision rotary that thus can be applicable to large solar photovoltaic generating tracking system follows the tracks of speed reducer;
(5) can be applicable to the Military Electronic Equipment of modern national defense military affairs, the high-precision rotary as satellite radar follows the tracks of speed reducer, or replaces the highi degree of accuracy little tooth difference speed reducer of certain type Shipborne Electronic Equipment;
(6) can replace highi degree of accuracy (return difference≤0.15 °) revolution and follow the tracks of retarder HSE25 type (25000Nm), HSE25-2 type (50000Nm), weight wants light 30-40%, manufacture cost can reduce 40-60%.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the embodiment of the present invention
Fig. 2 be embodiment's input shaft initial time two eccentric bushing end-tooths structural representation schematic diagram
Structural representation when two cycloid wheel and gear pin are close to when Fig. 3 is the rotation of embodiment's input shaft
[embodiment]
As Fig. 1. Fig. 2. shown in Fig. 3, the general hypocycloid speed reducer of a kind of interlayer casing zero return difference, the cyclo drive part comprising casing 19 and be arranged in casing 19, described cyclo drive part comprises inner cylinder 1, two cycloid wheel A, B, hypocycloid gear ring 2, input shaft 17, end cap 18 and w output mechanism, described w output mechanism comprises output shaft 4, pin 11 and first, two all carry ring 10, 12, described first all carries ring 10 is located between two cycloid wheel, described second all carries ring 12 is located at pin 11 end, described output shaft 4 and second all carries ring 12 with first, two bearings 3, 13 are bearing in inner cylinder 1 respectively with on end cap 18 inner flanch cylindrical, described input shaft 17 two the 3rd bearings 16 are bearing in end cap 18 endoporus, it is characterized in that:
Described inner cylinder 1 flange is connected with casing 19 output end face, the input end cylindrical of described nose circle lid 18 and casing 19 input end endoporus close-fitting, the nose circle face of described nose circle lid 18 input end face and casing 19 input end is tightly connected with same circle ring disk 20, described inner cylinder 1 encloses to connect with the outer wall of nose circle lid 18 link and the inwall of casing 19 and forms airtight interlayer, described casing 19 top and side are respectively equipped with exhausting window and the axial-flow blower of UNICOM's closed interlayer, or casing 19 top and side are respectively equipped with inlet valve and the outlet valve of UNICOM's closed interlayer;
Described input shaft 17 axle stretch end is provided with circlip 6, first and second eccentric bushing 15,8 is provided with between the shaft shoulder of described input shaft 17 and circlip 6, first and second eccentric bushing 15,8 end face described is lance tooth, tooth engages with tooth, described first eccentric bushing 15 is connected on input shaft 17, described second eccentric bushing 8 is joined with input shaft 17 is sliding, is provided with Returnning spring 7 between described second eccentric bushing 8 and circlip 6;
The described cycloid wheel B gear teeth and the counterclockwise side of hypocycloid gear ring 2 upper half internal tooth are close to, and the described cycloid wheel A gear teeth and the clockwise side of hypocycloid gear ring 2 bottom half internal tooth are close to, phase angle θ < 180 ° between two cycloid wheel;
Described hypocycloid gear ring 2 is connected to support 1 endoporus, active force in hypocycloid gear ring directly points to support footing and can not produce tilting moment, the double cycloid transmission that hypocycloid gear ring one cycloid wheel is formed, its engagement feature is that the cycloidal equidistance curve gear of envelope is each other as conjugate curve gear mechanism.The pinwheel one cycloid wheel transmission of hypocycloid velocity ratio, its advantage is:
A () just instead of the pinwheel be made up of pin wheel housing, a lot of pin tooth and pin gear sleeve with hypocycloid gear ring, thus few, the single-stage speed reducing ratio of simple, the another part of structure can reach 200 (" not having the cycloid variable-speed motor of pinwheel " mechanical transmission 2006.04);
B () hypocycloid gear ring and epicyclodial wheel are pure rolling, perfect lubrication state engages, and therefore its bearing capacity can improve 1 type (can improve 50%);
Described first and second eccentric bushing 15,8 first and second needle bearing or roller bearing 14,9 are bearing in cycloid wheel B, A center hole respectively, described second eccentric bushing 8 neck 111 external diameter should be less than the second needle bearing or roller bearing 9 inner ring external diameter, only promotes the second needle bearing roller bearing 9 inner ring when the second eccentric bushing 8 is moved vertically.
The feature of described interlayer casing zero return difference general cycloid reduction case is: first and second eccentric bushing 15,8 inner side end tooth described is wavy circle-arc tooth or sine, is similar to sinusoidal curve tooth, concentrate and not easy tooth-breaking because wavy circle-arc tooth does not exist stress, wavy circle-arc tooth is easy to milling, grinding and is active in one's movements.
The feature of described interlayer casing zero return difference general cycloid reduction case is: the front end of described circlip 6 is provided with a thrust-bearing 5, and the collar of described thrust-bearing 5 is contained on input shaft 17, and loose ring is placed in output shaft 4 disk endoporus.
Two panels takes turns the principle of simultaneously doing work:
(A) original state: the cycloid wheel B gear teeth and the counterclockwise side of hypocycloid gear ring upper half internal tooth are close to; The cycloid wheel A gear teeth and the clockwise side of hypocycloid gear ring bottom half internal tooth are close to.
(B) spring function: axial thrust load Fa promotes deflection counterclockwise while that the second eccentric bushing moving to left, and thus makes the gear teeth of cycloid wheel A along being close to hypocycloid gear ring bottom half internal tooth clockwise.
(1) when in the face of input shaft, rotate counterclockwise time: the circumferential component Ft on the first eccentric bushing 15 rake tooth mating face drives the second eccentric bushing 8 to rotate counterclockwise, and thus cycloid wheel A rotates clockwise; Now cycloid wheel B has crossed very little interstitial area and has been close to upper half gear pin, also rotates clockwise work done thereupon;
(2) when in the face of input shaft, rotate clockwise time: rotate along pin during the first eccentric bushing 15, thus cycloid wheel B rotates counterclockwise work done; Because end-tooth has gap, so the second eccentric bushing 8 can delayedly rotate clockwise, cycloid wheel A has crossed very little interstitial area and has been close to bottom half internal tooth, also rotates counterclockwise work done thereupon;
(3) conclusion: during original state, the gap of end-tooth gap and cycloid wheel and hypocycloid gear ring internal tooth is little as far as possible.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (3)
1. the general hypocycloid speed reducer of interlayer casing zero return difference, the cyclo drive part comprising casing (19) and be arranged in casing (19), described cyclo drive part comprises inner cylinder (1), cycloid wheel (A, B), hypocycloid gear ring (2), input shaft (17), end cap (18) and w output mechanism, described w output mechanism comprises output shaft (4), pin (11) and first, two all carry ring (10, 12), described first all carries ring (10) is located between two cycloid wheel, described second all carries ring (12) is located at pin (11) end, described output shaft (4) and second all carries ring (12) with first, two bearings (3, 13) be bearing in respectively in inner cylinder (1) with on end cap (18) inner flanch cylindrical, described input shaft (17) two the 3rd bearings (16) are bearing in end cap (18) endoporus, it is characterized in that:
Described inner cylinder (1) flange is connected with casing (19) output end face, the input end cylindrical of described nose circle lid (18) and casing (21) input end endoporus close-fitting, the nose circle face of described nose circle lid (18) input end face and casing (19) input end is tightly connected with same circle ring disk (20), described inner cylinder (1) encloses to connect with the outer wall of nose circle lid (18) link and the inwall of casing (19) and forms airtight interlayer, described casing (19) top and side are respectively equipped with exhausting window and the axial-flow blower of UNICOM's closed interlayer, or casing (19) top and side are respectively equipped with inlet valve and the outlet valve of UNICOM's closed interlayer,
Described input shaft (17) axle stretch end is provided with circlip (7), first and second eccentric bushing (15,8) is provided with between the shaft shoulder of described input shaft (17) and circlip (7), first and second eccentric bushing described (15,8) end face is lance tooth, tooth engages with tooth, described first eccentric bushing (15) is connected on input shaft (17), described second eccentric bushing (8) is joined with input shaft (17) is sliding, is provided with Returnning spring (7) between described second eccentric bushing (8) and circlip (6);
Described cycloid wheel (B) gear teeth and the counterclockwise side of hypocycloid gear ring (2) upper half internal tooth are close to, described cycloid wheel (A) gear teeth and the clockwise side of hypocycloid gear ring (2) bottom half internal tooth are close to, phase angle θ < 180 ° between two cycloid wheel;
Described hypocycloid gear ring (2) is connected to support (1) endoporus;
First and second eccentric bushing described (15,8) first and second needle bearing or roller bearing (14,9) are bearing in cycloid wheel (B, A) center hole respectively, described second eccentric bushing (8) neck (111) external diameter should be less than the second needle bearing or roller bearing (9) inner ring external diameter, only promotes the second needle bearing roller bearing (9) inner ring when the second eccentric bushing (8) is moved vertically.
2. the general hypocycloid speed reducer of interlayer casing zero return difference according to claim 1, is characterized in that: first and second eccentric bushing described (15,8) inner side end tooth is wavy circle-arc tooth or sine, is similar to sinusoidal curve tooth.
3. the general hypocycloid speed reducer of interlayer casing zero return difference according to claim 1 or 2, it is characterized in that: the front end of described circlip (6) is provided with a thrust-bearing (5), the collar of described thrust-bearing (5) is contained on input shaft (17), and loose ring is placed in output shaft (4) disk endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009118.5A CN104565222B (en) | 2015-01-02 | 2015-01-02 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510009118.5A CN104565222B (en) | 2015-01-02 | 2015-01-02 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565222A true CN104565222A (en) | 2015-04-29 |
| CN104565222B CN104565222B (en) | 2017-05-03 |
Family
ID=53082017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510009118.5A Active CN104565222B (en) | 2015-01-02 | 2015-01-02 | Interlayer body zero-return-difference type general inner cycloidal reduction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565222B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009137496A (en) * | 2007-12-07 | 2009-06-25 | Fuji Kiko Co Ltd | Variable steering-angle-ratio steering device |
| CN101949429A (en) * | 2010-08-18 | 2011-01-19 | 吴声震 | Single-stage cycloidal speed reducer of industrial robot |
| CN101963210A (en) * | 2010-08-18 | 2011-02-02 | 吴声震 | Three-piece type single-stage cycloid reducer of industrial robot |
| CN102072284A (en) * | 2010-11-04 | 2011-05-25 | 吴声震 | Precise dual-cycloid drive device of solar heliostat |
| CN104110469A (en) * | 2014-06-15 | 2014-10-22 | 吴小杰 | Hypocycloid reduction gearbox of air-cooled plastic extrusion machine |
| CN104154220A (en) * | 2014-08-06 | 2014-11-19 | 吴小杰 | Reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings |
| CN204553709U (en) * | 2015-01-02 | 2015-08-12 | 李响 | The general hypocycloid speed reducer of interlayer casing zero return difference |
-
2015
- 2015-01-02 CN CN201510009118.5A patent/CN104565222B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009137496A (en) * | 2007-12-07 | 2009-06-25 | Fuji Kiko Co Ltd | Variable steering-angle-ratio steering device |
| CN101949429A (en) * | 2010-08-18 | 2011-01-19 | 吴声震 | Single-stage cycloidal speed reducer of industrial robot |
| CN101963210A (en) * | 2010-08-18 | 2011-02-02 | 吴声震 | Three-piece type single-stage cycloid reducer of industrial robot |
| CN102072284A (en) * | 2010-11-04 | 2011-05-25 | 吴声震 | Precise dual-cycloid drive device of solar heliostat |
| CN104110469A (en) * | 2014-06-15 | 2014-10-22 | 吴小杰 | Hypocycloid reduction gearbox of air-cooled plastic extrusion machine |
| CN104154220A (en) * | 2014-08-06 | 2014-11-19 | 吴小杰 | Reduction box with small tooth difference for interlayer water-cooling tank zinc-based alloy bearings |
| CN204553709U (en) * | 2015-01-02 | 2015-08-12 | 李响 | The general hypocycloid speed reducer of interlayer casing zero return difference |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104565222B (en) | 2017-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104565309A (en) | Interlayer body zero-return-difference type general small-tooth-difference reduction box | |
| CN204553708U (en) | The general cycloid reduction case of interlayer casing zero return difference | |
| CN104747658A (en) | Zero-return-difference involute small-tooth-difference reduction box | |
| CN103742609A (en) | Planetary reducer | |
| CN104728351A (en) | Box body interlayer water cooling high thermal power dynamic balance cycloidal reduction box | |
| CN104696492A (en) | Cabinet interlayer air-cooled high-heat power dynamic balancing cycloid reduction box | |
| CN204553709U (en) | The general hypocycloid speed reducer of interlayer casing zero return difference | |
| CN104728410A (en) | Box body interlayer air cooling high thermal power hypocycloidal reduction box | |
| CN202579058U (en) | Acceleration gear box for wind driven generator with power of more than 2.5 megawatts | |
| CN205978303U (en) | Sun -tracking gear | |
| EP3662159B1 (en) | Planet carrier of a wind turbine gearbox with improved lubricant path | |
| CN204437236U (en) | The general few teeth difference speed reducer of interlayer casing zero return difference | |
| CN104565221A (en) | Interlayer body zero-return-difference type general cycloidal reduction box | |
| CN110422325B (en) | Coaxial double-rotor unmanned aerial vehicle power system structure | |
| CN104565222A (en) | Interlayer body zero-return-difference type general inner cycloidal reduction box | |
| CN207421261U (en) | A kind of power multiple-limb hydraulic planetary arrangements for speed regulation | |
| CN104696495A (en) | Cabinet interlayer water-cooled high heat power dynamic balancing planetary wheel reduction box | |
| CN104389639A (en) | Eccentric shaft hole rotor fluid mechanism | |
| CN109667890A (en) | Hollow rotating formula accurate retarding machine | |
| CN205446566U (en) | Planetary gear train assembly by embedded gear type circle structure | |
| CN203926624U (en) | Speed reducer and Mixing Machine | |
| CN208605580U (en) | A kind of novel three branches non-circular gear infinitely variable speed transmission | |
| CN207777533U (en) | Double motive power driving gear sets and freewheel clutch with correction shaft coupling are integrated | |
| CN102691655A (en) | Shaft rotation double-stator cam rotor multi-output pump | |
| CN105443740A (en) | Diversion output type water cooling few-tooth-difference gearbox of earth pressure balance shield machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |