CN205592328U - Transmission - Google Patents
Transmission Download PDFInfo
- Publication number
- CN205592328U CN205592328U CN201620343920.8U CN201620343920U CN205592328U CN 205592328 U CN205592328 U CN 205592328U CN 201620343920 U CN201620343920 U CN 201620343920U CN 205592328 U CN205592328 U CN 205592328U
- Authority
- CN
- China
- Prior art keywords
- housing
- turbine
- bearing cap
- decelerator
- shoulder
- 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.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 title abstract description 12
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 18
- 239000003921 oil Substances 0.000 claims description 15
- 239000000945 filler Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000012208 gear oil Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000002253 acid Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 239000003513 alkali Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model relates to a transmission mainly includes base, casing, turbine and scroll bar, the casing is fixed on the base, the casing is intersected vertically and the hollow structure casing that forms by upper and lower two cylinder shells, and the turbine passes through the bearing to be installed in the cylinder shell on casing upper portion, and the scroll bar passes through the bearing to be installed in the cylinder shell of casing lower part, and turbine and scroll bar meshing are through the bearing cap with housing seal. The utility model discloses a transmission is small, light in weight, and the noise is little, and intensity is high, and corrosion -resistant, resistant strong acid, alkali, has effectively improved transmission's life, can little torque convert the high speed of driving source into low -speed big torque output, guarantees transmission's transmission precision.
Description
Technical field
This utility model relates to a kind of decelerator, is specifically related to a kind of decelerator used in unmanned latent device under water and aircraft.
Background technology
Decelerator is a kind of universal machine, has a wide range of applications in industrial and agricultural production.Along with robot, automatization, Aeronautics and Astronautics, the developing rapidly of boats and ships, the under water unmanned latent engineering field cause such as device and aircraft, vehicle, weaponry, its driving member and system are proposed high accuracy, highly reliable, long-life, big torque, low energy consumption, small size, lightweight, non-maintaining contour performance requirement.High-performance key science and technology due to driving member and system directly affects function and the life-span of important equipment to a great extent, therefore high performance power transmission part and the innovation design theory of system, method and technology are explored, to improving reliability, the kinematic accuracy of China dynamoelectric equipment, the combination property such as increase the service life, and has very important scientific meaning and engineering applied value.
The decelerator used in unmanned latent device and aircraft under water to go deep into less than 300 meters of seabed or deeper seabed with unmanned latent device and aircraft and to work, it is desirable to decelerator must have the highest transmission accuracy and intensity, and strong acid corrosion-resistant, resistance to, highly basic.At present, the decelerator of domestic each big manufacturer production all can not meet such requirement, and this greatly governs under domestic water unmanned latent device and the exploration of aircraft and development.
Summary of the invention
Technical problem to be solved in the utility model is to overcome deficiency of the prior art, there is provided a kind of and be applicable to unmanned latent device and the decelerator of aircraft under water, this decelerator volume is little, lightweight, noise is little, and intensity is high, and strong acid corrosion-resistant, resistance to, highly basic, it is effectively increased the service life of decelerator, it is possible to the little torque of high speed in the source of driving is converted to low speed high torque output, it is ensured that the transmission accuracy of decelerator.
The technical solution of the utility model: a kind of decelerator, mainly include base, housing, turbine and scroll bar, described housing is fixed on base, it is characterized in that described housing is the hollow structure housing being intersected vertically by upper and lower two cylinder shells and being formed, wherein: top cylinder shape housing has former and later two assembled end, it is respectively equipped with installing hole in former and later two assembled end, front assembled end extends outward a housing shoulder, the top of top cylinder shape housing is additionally provided with an oil filler point being connected with housing cavity, and oil filler point is blocked by screw；Described turbine is arranged in top cylinder shape housing by former and later two bearings, and described turbine has output shaft, and the output shaft on turbine stretches at shoulder, and clutch shaft bearing lid is arranged in rear assembled end by screw；Lower cylindrical housing has left and right two assembled end, and left and right two assembled end are respectively equipped with installing hole；Described scroll bar is arranged in lower cylindrical housing by left and right two bearings, second bearing cap is arranged in the left assembled end of lower cylindrical housing by screw, 3rd bearing cap is arranged in the right assembled end of lower cylindrical housing by screw, and the power shaft of scroll bar stretches out outside lower end cylinder shape housing through the second bearing cap；Described turbine engages with scroll bar, and the power shaft of described scroll bar is connected by the output shaft of spline with the source of driving, is exported by the turbine wheel shaft on turbine by the driving force in the source of driving after turbine slows down；The bottom of described base is provided with a left and right through groove, and described groove is provided with a drain oil connected with housing cavity, and drain oil is blocked by screw, is provided with the base installing hole for fixing decelerator on described base.
Further, described housing is to be intersected vertically and integrally welded hollow structure housing by upper and lower two cylindric housings, and wherein the diameter of top cylinder shape housing is more than the diameter of lower cylindrical housing, and described housing is closed by titanium and makes.
Further, described turbine is to be integrally cast by the turbine gear ring of the output shaft of titanium alloy with copper, the axial module m=3.95 of turbine, turbine number of teeth z=30.
Further, described scroll bar is made up of titanium alloy, the axial module m=3.95 of scroll bar, scroll bar head number z=1.
Further, the thickness of described clutch shaft bearing lid is gone forward more than top cylinder shape housing the thickness of shoulder that assembled end extends, and described clutch shaft bearing lid is made up of titanium alloy.
Further, described clutch shaft bearing lid is the round bearing lid matched with top cylinder shape housing, medial and lateral end face at clutch shaft bearing lid each extends over out a shoulder, wherein in clutch shaft bearing lid, the thickness of shoulder is more than the thickness of the outer shoulder of clutch shaft bearing lid, and in clutch shaft bearing lid, on the end face of shoulder, it is machined with an end face cannelure parallel with the end face of clutch shaft bearing lid, being machined with a circle in clutch shaft bearing lid on the shoulder cylindrical of shoulder for placing the cannelure of the uninterrupted circle of sealing ring, clutch shaft bearing lid is provided with the first installing hole.
Further, described second bearing cap is the round bearing lid that the left assembled end with lower cylindrical housing matches, inner side end at the second bearing cap extends a second bearing cap shoulder, a circle it is machined with for placing the second cannelure of the uninterrupted circle of sealing ring on the cylindrical of the second bearing cap shoulder, the center of the second bearing cap is provided with one for the hole stretching out turbine input shaft, being provided with the second installing hole on the second bearing cap, described second bearing cap is made up of titanium alloy.
Further, described 3rd bearing cap is the round bearing lid that the right assembled end with lower cylindrical housing matches, inner side end at the 3rd bearing cap extends a 3rd bearing cap shoulder, a circle it is machined with for placing the 3rd cannelure of the uninterrupted circle of sealing ring on the cylindrical of the 3rd bearing cap shoulder, 3rd bearing cap is provided with the 3rd installing hole, and described 3rd bearing cap is that titanium alloy is made.
Further, the material that described housing, base, turbine, scroll bar, clutch shaft bearing lid, the second bearing cap, the 3rd bearing cap are selected is titanium alloy, is TA2 or TC4 any one.
Further, the inner chamber of described decelerator is marked with gear oil.
This utility model compared with prior art has the advantages that major part accessory of the present utility model all uses TA2 or TC4 to make, effectively reduce the weight of decelerator, improve intensity and the service life of decelerator, decelerator volume is little, smooth in appearance is beautiful, noise is little, and it is corrosion-resistant, and strong acid, highly basic, it is applicable to the deep ocean work that unmanned latent device and aircraft under water are at 500～1000 meters, the little torque of high speed in the source of driving can be converted to low speed high torque output by it, the bore seal of decelerator is tight, avoid sea water or other impurity carries out the inner chamber of decelerator, ensure that the transmission accuracy of decelerator.This decelerator also can be widely used to equipment and the manufacture fields such as food, medicine such as robot, Aeronautics and Astronautics, boats and ships, vehicle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is left view of the present utility model；
Fig. 3 is the structural representation of this utility model other direction；
Fig. 4 is the structural representation of turbine in this utility model；
Fig. 5 is the structural representation of scroll bar in this utility model；
Fig. 6 is the structural representation of clutch shaft bearing lid in this utility model；
Fig. 7 is the structural representation of the second bearing cap in this utility model；
Fig. 8 is the structural representation of the 3rd bearing cap in this utility model；
Fig. 9 is the structural representation of base in this utility model.
nullIn figure: 1-base，1a-groove，1b-drain oil，1c-base installing hole，2-housing，2a-top cylinder shape housing，2b-lower cylindrical housing，201-housing shoulder，3-scroll bar，3a-key，4-turbine，4a-turbine gear ring，4b-turbine wheel shaft，5-clutch shaft bearing lid，The outer shoulder of 5a-clutch shaft bearing lid，Shoulder in 5b-clutch shaft bearing lid，5c-end face cannelure，The first annular groove of 5d-，5e-the first installing hole，51-the first screw，52-the first sealing ring，6-the second bearing cap，6a-the second bearing cap shoulder，6b-the second cannelure，6c-the second installing hole，6d-centre bore，61-the second screw，62-the second sealing ring，7-the 3rd bearing cap，7a-the 3rd bearing cap shoulder，7b-the 3rd cannelure，7c-the 3rd installing hole，71-the 3rd screw，72-the 3rd sealing ring，8a、8b-bearing，9-the 4th screw，11a、11b-bearing，12-oil filler point.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is further described, so that those skilled in the art better understood when this utility model.
A kind of decelerator, mainly includes base 1, housing 2, turbine 4 and scroll bar 3, as shown in Figure 1, Figure 2, Figure 3 shows.
Described housing 2 is fixed on base 1, described housing 2 is the hollow structure housing being intersected vertically by upper and lower two cylinder shells and being formed, described housing 2 is closed by titanium and makes, wherein, wherein the diameter of top cylinder shape housing is more than the diameter of lower cylindrical housing, and top cylinder shape housing becomes a complete entirety with lower cylindrical case weld.Top cylinder shape housing 2a has former and later two assembled end, it is respectively equipped with installing hole in former and later two assembled end, front assembled end extends outward a housing shoulder 201, the top of top cylinder shape housing 2a is additionally provided with an oil filler point being connected with housing cavity 12, and oil filler point 12 is blocked by screw.Described turbine 4 is arranged in top cylinder shape housing 2a by former and later two bearings 11a, 11b.Turbine wheel shaft 4b on described turbine 4, is output shaft, and the turbine wheel shaft 4b on turbine 4 stretches at housing shoulder, and clutch shaft bearing lid 5 is arranged in rear assembled end by the first screw 51, and the first annular groove 5d on clutch shaft bearing lid 5 is built with the first sealing ring 52.The thickness of described clutch shaft bearing lid 5 is gone forward more than top cylinder shape housing 2a the thickness of housing shoulder 201 that assembled end extends,
Lower cylindrical housing 2b has left and right two assembled end, and left and right two assembled end are respectively equipped with installing hole.Described scroll bar 3 is arranged in lower cylindrical housing 2b by left and right two bearings 8a, 8b, second bearing cap 6 is arranged in the left assembled end of lower cylindrical housing 2b by the second screw 61, and the second cannelure 6b on the second bearing cap 6 is built with the second sealing ring 62.3rd bearing cap 7 is arranged in the right assembled end of lower cylindrical housing 2b by the 3rd screw 71, and the output shaft of scroll bar 3 stretches out outside lower end cylinder shape housing 2b through the second bearing cap 6.
Described turbine 4 engages with scroll bar 3, the turbine wheel shaft of turbine 4 is vertical with the installation direction of the power shaft of scroll bar 3, the power shaft of described scroll bar 3 is connected by the output shaft of spline with the source of driving, and the driving force in the source of driving is exported by the turbine wheel shaft on turbine 4 after turbine 4 slows down, say, that by the power shaft of decelerator, the driving force of the little torque of high speed in the source of driving is converted to low speed high torque driving force and exports through turbine wheel shaft.
The bottom of described base 1 is provided with a left and right through groove 1a, described groove is provided with a drain oil 1b connected with housing cavity, drain oil 1b is blocked by the 4th screw 9, described 4th screw 9 is interior hexagonal flush end holding screw, described base is provided with the installing hole 1c for fixing decelerator, it is easy to decelerator is fixed on desired position, as shown in Figure 9 with bolt or screw.
Described turbine 4 is to be integrally cast by the turbine gear ring 4a of the turbine wheel shaft 4b of titanium alloy with copper, as shown in Figure 4, the axial module m=3.95 of turbine, turbine number of teeth z=30.
Described scroll bar 3 is made up of titanium alloy, as it is shown in figure 5, the power shaft of scroll bar 3 is provided with key 3a, and the axial module m=3.95 of scroll bar, scroll bar head number z=1.
As shown in Figure 6, described clutch shaft bearing lid 5 is the round bearing lid matched with top cylinder shape housing 2a, in clutch shaft bearing lid 5, end face outside each extends over out a shoulder, wherein, the thickness of the shoulder 5b thickness more than the outer shoulder 5a of clutch shaft bearing lid in clutch shaft bearing lid, and in clutch shaft bearing lid, on the end face of shoulder 5b, it is machined with an end face cannelure 5c parallel with clutch shaft bearing lid 5 end face, a circle it is machined with on the shoulder cylindrical of shoulder 5b for placing the first annular groove 5d of the uninterrupted circle of sealing ring in clutch shaft bearing lid, clutch shaft bearing lid 5 is provided with the first installing hole 5e.
As shown in Figure 7, described second bearing cap 6 is the round bearing lid that the left assembled end with lower cylindrical housing 2b matches, inner side end at the second bearing cap 6 extends a second bearing cap shoulder 6a, a circle it is machined with for placing the second cannelure 6b of the uninterrupted circle of sealing ring on the cylindrical of the second bearing cap shoulder 6a, the center of the second bearing cap is provided with one for the centre bore 6d stretching out turbine input shaft, being provided with the second installing hole 6c on the second bearing cap 6, described second bearing cap 6 is made up of titanium alloy.
As shown in Figure 8, described 3rd bearing cap 7 is the round bearing lid that the right assembled end with lower cylindrical housing 2b matches, inner side end at the 3rd bearing cap 7 extends a 3rd bearing cap shoulder 7a, a circle it is machined with for placing the 3rd cannelure 7b of the uninterrupted circle of sealing ring on the cylindrical of the 3rd bearing cap shoulder, 3rd bearing cap 7 is provided with the 3rd installing hole 7c, and described 3rd bearing cap is that titanium alloy is made.
The material that upper shell, base, turbine, scroll bar, clutch shaft bearing lid, the second bearing cap, the 3rd bearing cap are selected is titanium alloy, is TA2 or TC4 any one.The processing of each parts is through vacuum heat, the decelerator using titanium alloy to make is the most lightweight, attractive in appearance beautiful, the average arithmetic roughness of decelerator is 0.8～6.3, and intensity is high, corrosion-resistant, resistance to strong acid, highly basic, the service life of decelerator can be effectively improved, and ensure the transmission accuracy of decelerator.
Above three sealing ring, i.e. first sealing ring the 52, second sealing ring the 62, the 3rd sealing ring 72 is O-ring seals, O-ring seals uses fluorubber to make, the tight degree between bearing cap and housing can be ensured, the inner chamber making decelerator forms airtight space, do not have impurity, dust or sea water to enter, and then ensure the normal work of turbine and scroll bar, it is ensured that the transmission accuracy of decelerator.
Above three screw, i.e. first screw the 51, second screw the 61, the 3rd screw 71 all uses a word sunk screw.
During assembling, first turbine 4 is pushed into by bearing 11a, 11b the pre-installed position of top cylinder shape housing 2a, again scroll bar is loaded in lower cylindrical housing 2b by bearing 8a, 8b, make turbine 4 and scroll bar 3 safe engagement, again turbine 4 is pushed into its respective fixed installation position completely together with scroll bar 3, three bearing caps being attached separately on its corresponding position, the inner chamber of such decelerator is the formation of airtight space again, and gear oil is flowed in the cavity of decelerator by the oil filler point pushed up by housing 2.
During work, the output shaft in the source of driving is connected by key 3a with the power shaft of scroll bar on decelerator 3, driving source is motor, the impeller of unmanned latent device and aircraft under water is contained on turbine wheel shaft 4b, little for the high speed of motor torque just can be converted into low speed high torque and exports to impeller by so decelerator, it is ensured that unmanned latent device and the normal work of aircraft under water.
Above-described embodiment is only used for skilled artisan understands that the technical scheme of this utility model patent; it is not to restriction of the present utility model; all any amendment, improvement or equivalents made within protection domain of the present utility model, all should fall within protection domain of the present utility model.
Claims (10)
1. decelerator, mainly includes that base, housing, turbine and scroll bar, described housing are fixed on base, it is characterized in that described housing is the hollow structure housing being intersected vertically by upper and lower two cylinder shells and being formed, wherein:
Top cylinder shape housing has former and later two assembled end, it is respectively equipped with installing hole in former and later two assembled end, front assembled end extends outward a housing shoulder, and the top of top cylinder shape housing is additionally provided with an oil filler point being connected with housing cavity, and oil filler point is blocked by screw；
Described turbine is arranged in top cylinder shape housing by former and later two bearings, and described turbine has turbine wheel shaft, and the turbine wheel shaft on turbine stretches at housing shoulder, and clutch shaft bearing lid is arranged in rear assembled end by the first screw；
Lower cylindrical housing has left and right two assembled end, and left and right two assembled end are respectively equipped with installing hole；
Described scroll bar is arranged in lower cylindrical housing by left and right two bearings, second bearing cap is arranged in the left assembled end of lower cylindrical housing by the second screw, 3rd bearing cap is arranged in the right assembled end of lower cylindrical housing by the 3rd screw, and the power shaft of scroll bar stretches out outside lower end cylinder shape housing through the second bearing cap；
Described turbine engages with scroll bar, and the power shaft of described scroll bar is connected by the output shaft of spline with the source of driving, and is exported by the turbine wheel shaft on turbine after turbine slows down by the driving force in the source of driving；
The bottom of described base is provided with a left and right through groove, and described groove is provided with a drain oil connected with housing cavity, and drain oil is blocked by screw, is provided with the installing hole for fixing decelerator on described base.
Decelerator the most according to claim 1, it is characterized in that described housing is to be intersected vertically and integrally welded hollow structure housing by upper and lower two cylindric housings, wherein the diameter of top cylinder shape housing is more than the diameter of lower cylindrical housing, and described housing is closed by titanium and makes.
Decelerator the most according to claim 1, is characterized in that described turbine is to be integrally cast by the turbine gear ring of the turbine wheel shaft of titanium alloy with copper, the axial module m=3.95 of turbine, turbine number of teeth z=30.
Decelerator the most according to claim 1, is characterized in that described scroll bar is made up of titanium alloy, the axial module m=3.95 of scroll bar, scroll bar head number z=1.
Decelerator the most according to claim 1, is characterized in that the thickness of described clutch shaft bearing lid is gone forward more than top cylinder shape housing the thickness of shoulder that assembled end extends, and described clutch shaft bearing lid is made up of titanium alloy.
Decelerator the most according to claim 1 or 5, it is characterized in that described clutch shaft bearing lid is the round bearing lid matched with top cylinder shape housing, in clutch shaft bearing lid, end face outside each extends over out a shoulder, wherein in clutch shaft bearing lid, the thickness of shoulder is more than the thickness of the outer shoulder of clutch shaft bearing lid, and in clutch shaft bearing lid, on the end face of shoulder, it is machined with an end face cannelure parallel with the end face of clutch shaft bearing lid, a circle it is machined with on the shoulder cylindrical of shoulder for placing the cannelure of the uninterrupted circle of sealing ring in clutch shaft bearing lid, clutch shaft bearing lid is provided with the first installing hole.
Decelerator the most according to claim 1, it is characterized in that described second bearing cap is the round bearing lid that the left assembled end with lower cylindrical housing matches, inner side end at the second bearing cap extends a second bearing cap shoulder, a circle it is machined with for placing the second cannelure of the uninterrupted circle of sealing ring on the cylindrical of the second bearing cap shoulder, the center of the second bearing cap is provided with one for the hole stretching out turbine input shaft, being provided with the second installing hole on the second bearing cap, described second bearing cap is made up of titanium alloy.
Decelerator the most according to claim 1, it is characterized in that described 3rd bearing cap is the round bearing lid that the right assembled end with lower cylindrical housing matches, inner side end at the 3rd bearing cap extends a 3rd bearing cap shoulder, a circle it is machined with for placing the 3rd cannelure of the uninterrupted circle of sealing ring on the cylindrical of the 3rd bearing cap shoulder, 3rd bearing cap is provided with the 3rd installing hole, and described 3rd bearing cap is that titanium alloy is made.
9., according to the decelerator described in Claims 1 to 5,7,8 any one, it is characterized in that the material that described housing, base, turbine, scroll bar, clutch shaft bearing lid, the second bearing cap, the 3rd bearing cap are selected is titanium alloy, be TA2 or TC4 any one.
Decelerator the most according to claim 1, is characterized in that the inner chamber of described decelerator is marked with gear oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343920.8U CN205592328U (en) | 2016-04-22 | 2016-04-22 | Transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343920.8U CN205592328U (en) | 2016-04-22 | 2016-04-22 | Transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205592328U true CN205592328U (en) | 2016-09-21 |
Family
ID=56934629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620343920.8U Expired - Fee Related CN205592328U (en) | 2016-04-22 | 2016-04-22 | Transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205592328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697659A (en) * | 2016-04-22 | 2016-06-22 | 侯马经济开发区日祥科技有限公司 | Speed reducer |
-
2016
- 2016-04-22 CN CN201620343920.8U patent/CN205592328U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697659A (en) * | 2016-04-22 | 2016-06-22 | 侯马经济开发区日祥科技有限公司 | Speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 |