CN110206871A - A kind of split type herringbone toothing and speed reducer - Google Patents
A kind of split type herringbone toothing and speed reducer Download PDFInfo
- Publication number
- CN110206871A CN110206871A CN201910554141.0A CN201910554141A CN110206871A CN 110206871 A CN110206871 A CN 110206871A CN 201910554141 A CN201910554141 A CN 201910554141A CN 110206871 A CN110206871 A CN 110206871A
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- mounting portion
- helical gear
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- gear
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000004323 axial length Effects 0.000 abstract description 4
- 239000000178 monomer Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a kind of split type herringbone toothing and speed reducers, belong to transmission device technical field.Split type herringbone toothing provided by the present invention includes the gear shaft of split settings, the first helical gear and the second helical gear, is just capable of forming double helical spurgear on the first mounting portion and the second mounting portion that the first helical gear and the second helical gear are respectively fitted on gear shaft.Compared to the double helical spurgear being wholely set, first helical gear of split settings and the second helical gear axial length are smaller, it not only contributes to reduce the difficulty of processing when manufacture of helical gear monomer, improves processing efficiency, and can reduce the difficulty of processing of keyway and the assembly difficulty of key.And by the way that positioning shaft shoulder is arranged on gear shaft, first mounting portion and the second mounting portion are arranged in the two sides of positioning shaft shoulder, it can be realized and be assigned on gear shaft from both direction by the first helical gear and the second helical teeth rotation, advantageously reduce the assembly difficulty of herringbone toothing, improve assembly efficiency.
Description
Technical field
The present invention relates to transmission device technical field more particularly to a kind of split type herringbone toothings and speed reducer.
Background technique
Speed reducer is that one kind can play reduction revolving speed and increase between prime mover and working machine or executing agency
The transmission device of torque effect, so that working machine or executing agency be made to meet work requirements.It is used in existing large-sized sheet material line
With in speed reducer project, generally all using herringbone toothing, herringbone toothing includes having pair for speed reducer or large-scale bar
Claim the helical gear of the phase backslash gear teeth, therefore the cross force generated during gear drive can be eliminated.
Existing herringbone toothing includes gear shaft and double helical spurgear, and double helical spurgear, which includes two, to be had symmetrically on the contrary
The helical gear of the oblique gear teeth, existing includes that two helical gear double helical spurgears are generally structure as a whole.But integral structure
Double helical spurgear has the disadvantage in that first, two helical gear is processed in processing since inclined direction difference needs are independent, from
And cause double helical spurgear processing efficiency low；The second, since integral structure causes the axial length of double helical spurgear longer, and
Due to escape needs and double helical spurgear one, the axial length of double helical spurgear is further increased, so as to cause herringbone
The heavier-weight of shape gear is not easy to manufacture and install；Assemble that keyway length used is too long to be caused in third, double helical spurgear
Keyway difficulty of processing is larger；4th, the part that double helical spurgear is installed on gear shaft is necessary for the same size, so as to cause tooth
The intensity of wheel shaft and key is limited.
Summary of the invention
It is an object of the present invention to provide a kind of split type herringbone toothing, which can divide
Body processing and installation, not only difficulty of processing is small, high in machining efficiency, installation difficulty is small, installation effectiveness is high, and structural strength and assembly
Intensity is higher.
It is another object of the present invention to provide a kind of speed reducers, and the speed reducer assembly difficulty is small, assembly efficiency is high.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of split type herringbone toothing, comprising:
Gear shaft, the gear shaft are disposed with the first mounting portion, positioning shaft shoulder and the second mounting portion in the axial direction；
First helical gear, first helical gear are set on first mounting portion, the first helical gear aperture
Less than the diameter of the positioning shaft shoulder；
Second helical gear, second helical gear are set on second mounting portion, the second helical gear aperture
Less than the diameter of the positioning shaft shoulder；
The first helical gear reference diameter and the second helical gear reference diameter are equal, and described first tiltedly
Gear teeth structure on gear is symmetrical opposite with the described second helical gear gear teeth structure and is capable of forming the herringbone gear teeth.
Preferably, the diameter of first mounting portion and second mounting portion is unequal.
Preferably, the diameter of first mounting portion is 150mm-850mm；And/or
The diameter of second mounting portion is 150mm-850mm.
Preferably, being provided with escape in the positioning shaft shoulder.
Preferably, first mounting portion and first helical gear key connection；And/or
Second mounting portion and second helical gear key connection.
Preferably, the width of the positioning shaft shoulder is more than or equal to 15mm.
Preferably, the gear shaft further include:
Third mounting portion, the third mounting portion and first mounting portion are coaxially disposed, and are arranged in first peace
Side of the dress portion far from the positioning shaft shoulder, the diameter of the third mounting portion are less than the diameter of first mounting portion；
4th mounting portion, the 4th mounting portion and second mounting portion are coaxially disposed, and are arranged in second peace
Side of the dress portion far from the positioning shaft shoulder, the diameter of the 4th mounting portion are less than the diameter of second mounting portion.
A kind of speed reducer, including above-mentioned split type herringbone toothing.
Preferably, the quantity of the split type herringbone toothing is two, the respectively first split type herringbone toothing
With the second split type herringbone toothing；
First helical gear of the first split type herringbone toothing and the second split type herringbone toothing
The second helical gear engagement；
First helical gear of the second split type herringbone toothing and the first split type herringbone toothing
The second helical gear engagement；
Described first helical gear reference diameter of the first split type herringbone toothing and described second split type
Described first helical gear reference diameter of herringbone toothing is unequal.
Preferably, the first split type herringbone toothing first mounting portion and second mounting portion it is straight
Diameter is unequal；And/or
First mounting portion of the second split type herringbone toothing and the diameter of second mounting portion are unequal.
Beneficial effects of the present invention:
The present invention provides a kind of split type herringbone toothing, which includes the gear of split settings
Axis, the first helical gear and the second helical gear, the first helical gear and the second helical gear are respectively fitted to the first installation on gear shaft
Double helical spurgear is just capable of forming on portion and the second mounting portion.Compared to the double helical spurgear being wholely set, the of split settings
One helical gear and the second helical gear axial length are smaller, not only contribute to reduce the difficult processing when manufacture of helical gear monomer
Degree improves processing efficiency, and can reduce the difficulty of processing of keyway relevant to helical gear and the assembly difficulty of key.And pass through
Positioning shaft shoulder is set on gear shaft, the first mounting portion and the second mounting portion are arranged in the two sides of positioning shaft shoulder, can be realized
It is assigned on gear shaft from both direction by the first helical gear and the second helical teeth rotation, the assembly for advantageously reducing herringbone toothing is difficult
Degree improves assembly efficiency.
Detailed description of the invention
Fig. 1 is the front view of speed reducer provided by the present invention；
Fig. 2 is the cross-sectional view in the direction A-A in Fig. 1；
Fig. 3 is the cross-sectional view in the direction B-B in Fig. 1.
In figure:
100, the first split type herringbone toothing；200, the second split type herringbone toothing；300, cabinet；
1, gear shaft；101, the first mounting portion；102, positioning shaft shoulder；103, the second mounting portion；104, third mounting portion；
105, the 4th mounting portion；
2, the first helical gear；3, the second helical gear.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", only
For descriptive purposes, it is not understood to indicate or imply relative importance.Wherein, term " first position " and " second position "
For two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection；It can be mechanical connection,
It is also possible to be electrically connected；It can be directly connected, can also can be inside two elements indirectly connected through an intermediary
Connection.For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in the present invention specifically contain
Justice.
A kind of split type herringbone toothing is present embodiments provided, which can be used for speed reducer
The middle transmission mechanism as speed reducer uses.As depicted in figs. 1 and 2, split type herringbone toothing includes the gear of split settings
Axis 1, the first helical gear 2 and the second helical gear 3.Gear shaft 1, the first helical gear 2 and the second helical gear 3 are to individually produce system
It makes, herringbone toothing is capable of forming after assembling by the later period.
Wherein, as shown in Fig. 2, gear shaft 1 includes the first mounting portion 101 set gradually in the axial direction, positioning shaft shoulder
102 and second mounting portion 103.First mounting portion 101 is for installing the first helical gear 2, and the second mounting portion 103 is for installing second
Helical gear 3, positioning shaft shoulder 102 is for positioning the first helical gear 2 and the second helical gear 3.In the present embodiment, positioning shaft shoulder 102
Width can reduce to 15mm, be conducive to the structural compactness for improving split type herringbone toothing.First mounting portion 101 is determined
The position shaft shoulder 102 and the second mounting portion 103 are cylindrical structure, and the diameter of the first mounting portion 101 and the second mounting portion 103 is small
In the diameter of positioning shaft shoulder 102.
First helical gear 2 is set on the first mounting portion 101, and the aperture of the first helical gear 2 is less than the straight of positioning shaft shoulder 102
Diameter.It is realized and is connected by key between first helical gear 2 and the first mounting portion 101, pacified on the inner wall of the first helical gear 2 with first
Keyway is provided in dress portion 101, key is placed in keyway.Second helical gear 3 is set on the second mounting portion 103, the second helical teeth
The aperture of wheel 3 is less than the diameter of positioning shaft shoulder 102.It is realized and is connected by key between second helical gear 3 and the second mounting portion 103,
On the inner wall of second helical gear 3 and it is provided with keyway on the second mounting portion 103, key is placed in keyway.First helical gear 2
The reference diameter of reference diameter and the second helical gear 3 is equal, gear teeth structure and the second helical gear 3 on the first helical gear 2
Gear teeth structure is symmetrical opposite and the herringbone gear teeth that are capable of forming on double helical spurgear, the first helical gear 2 and the second helical gear 3
It is capable of forming double helical spurgear.
Compared to the double helical spurgear being wholely set, the first helical gear 2 of split settings and the axial direction of the second helical gear 3 are long
Degree is smaller, not only contributes to reduce the difficulty of processing when manufacture of helical gear monomer, improves processing efficiency, and can make helical gear
On keyway length become original half, key length also becomes original half, and geometric tolerance is easier to ensure that, is conducive to
Reduce the difficulty of processing of keyway and the assembly difficulty of key.And by the way that positioning shaft shoulder 102 is arranged on gear shaft 1, by the first peace
The two sides of positioning shaft shoulder 102 are arranged in dress portion 101 and the second mounting portion 103, can be realized the first helical gear 2 from both direction
It is assigned on gear shaft 1 for 3 turns with the second helical gear, advantageously reduces the assembly difficulty of herringbone toothing, improve assembly efficiency.
Specifically, in the present embodiment, the diameter of the first mounting portion 101 is 150mm-850mm, the second mounting portion 103
Diameter is 150mm-850mm, and the diameter of the diameter of the first mounting portion 101 and the second mounting portion 103 can be equal, can also not
Together.Preferably, as shown in Fig. 2, the diameter of the first mounting portion 101 and the second mounting portion 103 is unequal, accordingly, the first helical teeth
The aperture of wheel 2 and the aperture of the second helical gear 3 are also unequal.Such setting can not only improve according to demand gear shaft 1 and tiltedly
The structural strength of gear, additionally it is possible to select larger-size key to connect helical gear and gear shaft 1, be conducive to improve helical gear
Transmission stability.
Further, escape is arranged in positioning shaft shoulder 102, such setting can be avoided in 2 He of the first helical gear
One escape is respectively set on the second helical gear 3, the manufacturing procedure of escape can not only be simplified, improves processing efficiency, moreover it is possible to
The length of the first helical gear 2 and the second helical gear 3 in the axial direction is enough reduced, it is oblique to be effectively reduced the first helical gear 2 and second
The weight of gear 3.
Further, the gear shaft 1 is installed to the cabinet 300 of speed reducer for the ease of the later period, as shown in Fig. 2, should
Gear shaft 1 further includes third mounting portion 104 and the 4th mounting portion 105, is respectively arranged one on two opposite side walls on cabinet 300
Mounting hole, in the mounting hole that third mounting portion 104 is placed in one, the 4th mounting portion 105 is placed in an other mounting hole
It is interior.Specifically, third mounting portion 104 and the 4th mounting portion 105 are cylindrical-shaped structure, and third mounting portion 104 is arranged first
The side of the remotely located shaft shoulder 102 of mounting portion 101, the 4th mounting portion 105 are arranged in the remotely located shaft shoulder of the second mounting portion 103
102 side, third mounting portion 104, the first mounting portion 101, positioning shaft shoulder 102, the second mounting portion 103 and the 4th mounting portion
105 are coaxially disposed.Diameter of the diameter of third mounting portion 104 less than the first mounting portion 101, the diameter of the 4th mounting portion 105
Less than the diameter of the second mounting portion 103, it is arranged such between third mounting portion 104 and the first mounting portion 101, the 4th mounting portion
105 and second respectively form a shaft shoulder between mounting portion 103, so that the later period is on third mounting portion 104 and the 4th mounting portion 105
Positioning shaft sleeve is installed, limits the first helical gear 2 in the first installation using the cooperation of positioning shaft sleeve and positioning shaft shoulder 102 to reach
It is moved in portion 101 and purpose that the second helical gear 3 moves on the second mounting portion 103.
Further, third mounting portion 104 and the 4th mounting portion 105 can be optical axis, or multi-diameter shaft, herein not
It is specifically limited, is specifically set according to specific requirements.
This implementation additionally provides a kind of speed reducer, which includes cabinet 300 and be arranged in above-mentioned in cabinet 300
Split type herringbone toothing.As shown in Figure 1 to Figure 3, in the present embodiment, the quantity of split type herringbone toothing is two, point
Not Wei the first split type herringbone toothing 100 and the second split type herringbone toothing 200, the first split type herringbone toothing 100
It is oppositely arranged with the second split type herringbone toothing 200, the first helical gear 2 and second of the first split type herringbone toothing 100
Second helical gear 3 of split type herringbone toothing 200 engages, the first helical gear 2 of the second split type herringbone toothing 200 and the
Second helical gear 3 of one split type herringbone toothing 100 engages.First helical gear 2 of the first split type herringbone toothing 100
The reference diameter of first helical gear 2 of reference diameter and the second split type herringbone toothing 200 is unequal, subtracts to realize
Fast purpose.Certainly more split type herringbone toothings also can be set in other embodiments, in speed reducer, particular number exists
This is not specifically limited, and is set according to specific requirements.By using above-mentioned split type herringbone toothing, deceleration can not only be improved
The assembly efficiency of machine reduces assembly difficulty, and can be improved the transmission stability of speed reducer.
Further, as shown in figure 3, the first mounting portion 101 and the second mounting portion of the first split type herringbone toothing 100
103 diameter is unequal.First mounting portion 101 of the second split type herringbone toothing 200 and the diameter phase of the second mounting portion 103
Deng.It certainly in other embodiments, can also be according to demand by the first mounting portion 101 of the second split type herringbone toothing 200
It is also configured as with the diameter of the second mounting portion 103 unequal.The diameter of first mounting portion 101 and the second mounting portion 103 is arranged
Gear shaft 1 and helical gear structural strength can not only be improved to be unequal, is also convenient for selecting larger-size key to connect tiltedly
Gears and gears axis 1 is conducive to improve helical gear transmission stability.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of split type herringbone toothing characterized by comprising
Gear shaft (1), the gear shaft (1) are disposed with the first mounting portion (101), positioning shaft shoulder (102) in the axial direction
With the second mounting portion (103)；
First helical gear (2), first helical gear (2) are set on first mounting portion (101), first helical gear
(2) aperture is less than the diameter of the positioning shaft shoulder (102)；
Second helical gear (3), second helical gear (3) are set on second mounting portion (103), second helical gear
(3) aperture is less than the diameter of the positioning shaft shoulder (102)；
The reference diameter of first helical gear (2) and the reference diameter of second helical gear (3) are equal, and described first
Gear teeth structure on helical gear (2) is symmetrical opposite with the gear teeth structure of second helical gear (3) and is capable of forming herringbone wheel
Tooth.
2. split type herringbone toothing according to claim 1, which is characterized in that
The diameter of first mounting portion (101) and second mounting portion (103) is unequal.
3. split type herringbone toothing according to claim 1, which is characterized in that
The diameter of first mounting portion (101) is 150mm-850mm；And/or
The diameter of second mounting portion (103) is 150mm-850mm.
4. split type herringbone toothing according to claim 1, which is characterized in that
Escape is provided on the positioning shaft shoulder (102).
5. split type herringbone toothing according to claim 1, which is characterized in that
First mounting portion (101) and first helical gear (2) key connection；And/or
Second mounting portion (103) and second helical gear (3) key connection.
6. split type herringbone toothing according to claim 1, which is characterized in that
The width of the positioning shaft shoulder (102) is more than or equal to 15mm.
7. split type herringbone toothing according to claim 1, which is characterized in that the gear shaft (1) further include:
Third mounting portion (104), the third mounting portion (104) and first mounting portion (101) are coaxially disposed, and are arranged
Side of first mounting portion (101) far from the positioning shaft shoulder (102), the diameter of the third mounting portion (104) are less than
The diameter of first mounting portion (101)；
4th mounting portion (105), the 4th mounting portion (105) and second mounting portion (103) are coaxially disposed, and are arranged
Side of second mounting portion (103) far from the positioning shaft shoulder (102), the diameter of the 4th mounting portion (105) are less than
The diameter of second mounting portion (103).
8. a kind of speed reducer, which is characterized in that including the described in any item split type herringbone toothings of claim 1-7.
9. speed reducer according to claim 8, which is characterized in that
The quantity of the split type herringbone toothing is two, the respectively first split type herringbone toothing (100) and second point
Body formula herringbone toothing (200)；
First helical gear (2) of the first split type herringbone toothing (100) and the second split type double helical tooth knot
Second helical gear (3) of structure (200) is engaged；
First helical gear (2) of the second split type herringbone toothing (200) and the first split type double helical tooth knot
Second helical gear (3) of structure (100) is engaged；
The reference diameter of first helical gear (2) of the first split type herringbone toothing (100) and second point described
The reference diameter of first helical gear (2) of body formula herringbone toothing (200) is unequal.
10. speed reducer according to claim 9, which is characterized in that
First mounting portion (101) of the first split type herringbone toothing (100) and second mounting portion (103)
Diameter is unequal；And/or
First mounting portion (101) of the second split type herringbone toothing (200) and second mounting portion (103)
Diameter is unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554141.0A CN110206871A (en) | 2019-06-25 | 2019-06-25 | A kind of split type herringbone toothing and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910554141.0A CN110206871A (en) | 2019-06-25 | 2019-06-25 | A kind of split type herringbone toothing and speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206871A true CN110206871A (en) | 2019-09-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910554141.0A Pending CN110206871A (en) | 2019-06-25 | 2019-06-25 | A kind of split type herringbone toothing and speed reducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN110206871A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200332350Y1 (en) * | 2003-07-28 | 2003-11-07 | 박종헌 | A double helical gear |
| CN201330832Y (en) * | 2008-12-30 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Double helical gear transmission mechanism |
| RU2379167C1 (en) * | 2008-05-26 | 2010-01-20 | Открытое акционерное общество "Авиадвигатель" | Instalaltion method of herring-bone gear |
| CN202746495U (en) * | 2012-08-29 | 2013-02-20 | 资阳市光远减速机制造厂 | Lower speed reducer of brick making machine |
| CN207049297U (en) * | 2017-06-15 | 2018-02-27 | 天津天重中直科技工程有限公司 | A kind of new herringbone bear structure |
| JP2019044914A (en) * | 2017-09-05 | 2019-03-22 | トヨタ自動車株式会社 | transmission |
| CN210135221U (en) * | 2019-06-25 | 2020-03-10 | 南京高精齿轮集团有限公司 | Split herringbone tooth structure and speed reducer |
-
2019
- 2019-06-25 CN CN201910554141.0A patent/CN110206871A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200332350Y1 (en) * | 2003-07-28 | 2003-11-07 | 박종헌 | A double helical gear |
| RU2379167C1 (en) * | 2008-05-26 | 2010-01-20 | Открытое акционерное общество "Авиадвигатель" | Instalaltion method of herring-bone gear |
| CN201330832Y (en) * | 2008-12-30 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Double helical gear transmission mechanism |
| CN202746495U (en) * | 2012-08-29 | 2013-02-20 | 资阳市光远减速机制造厂 | Lower speed reducer of brick making machine |
| CN207049297U (en) * | 2017-06-15 | 2018-02-27 | 天津天重中直科技工程有限公司 | A kind of new herringbone bear structure |
| JP2019044914A (en) * | 2017-09-05 | 2019-03-22 | トヨタ自動車株式会社 | transmission |
| CN210135221U (en) * | 2019-06-25 | 2020-03-10 | 南京高精齿轮集团有限公司 | Split herringbone tooth structure and speed reducer |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190925 Address after: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210012 Applicant after: Nanjing High Precision Gear Group Co., Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. Address before: 210012 Yuhuatai No. 3, Nanjing, Jiangsu Province Applicant before: Nanjing High Precision Gear Group Co., Ltd. |
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Effective date of registration: 20200508 Address after: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210012 Applicant after: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Address before: No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province, 210012 Applicant before: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. |
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