CN105351405A - Cylinder for braking clamp - Google Patents
Cylinder for braking clamp Download PDFInfo
- Publication number
- CN105351405A CN105351405A CN201510805790.5A CN201510805790A CN105351405A CN 105351405 A CN105351405 A CN 105351405A CN 201510805790 A CN201510805790 A CN 201510805790A CN 105351405 A CN105351405 A CN 105351405A
- Authority
- CN
- China
- Prior art keywords
- screw sleeve
- piston
- adjusting screw
- return piston
- spring
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000012536 packaging technology Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A cylinder for a braking clamp is provided with a cylinder body. A piston, a reset piston, a first elastic piece and a spring base are mounted in the cylinder body. A base rear cover is fixedly connected to the cylinder body. The cylinder is further provided with an adjusting screw, a screw sleeve, an end face toothed ring clutch, a reset piston end cover, an adjusting spring, an adjusting spring end cover, a guide rod and a second elastic piece. One end of the reset spring abuts against the piston, and the other end of the reset piston is in threaded connection with the reset piston end cover. The adjusting screw is located in a stepped hole of the reset piston, and one end of the adjusting screw is connected with the reset piston end cover. The screw sleeve is mounted on the adjusting screw in a sleeving manner and is in non-locking threaded connection with the adjusting screw. The cylinder for the braking clamp has the beneficial effects that a frictional force-transmission mechanism is adopted in the cylinder and replaces a prior spiral force-transmission mechanism, the cylinder is simple in structure, few in part, small in size, easy and convenient to assemble, low in machining cost and more reliable, and the frictional force-transmission mechanism has a large single-time regulating variable even under a small piston stroke.
Description
Technical field
The invention belongs to brake rigging technical field, be specifically related to a kind of oil cylinder for track traffic brake clamp.
Background technique
The master cylinder of existing track traffic brake clamp generally adopts the structure of multiple screw thread self-locking to regulate, i.e. adjustable diameter and screw adjusting mechanism, but the complex structure of this mechanism, and component are more, and volume is very large.For the oil cylinder using hydraulic coupling work, its limited space, adopt conventional gap adjust structure, packaging technology can be made very loaded down with trivial details, processing cost is higher, moreover this screw mechanism uses a lot of cone match to realize clutch effect under the little stroke of oil cylinder, be not very reliable, this adjustable diameter and screw adjusting single regulated quantity is less.
Summary of the invention
The object of this invention is to provide a kind of structure simple, component are less, and volume is little, and packaging technology is easy, and processing cost is low, more reliably, when the little stroke of piston, and the brake clamp oil cylinder that single regulated quantity also can be very large.
To achieve these goals, technological scheme of the present invention is: a kind of brake clamp oil cylinder, has cylinder body, and described cylinder body, built with piston, return piston, the first elastic component and spring pedestal, described cylinder body is fixedly connected with base bonnet, and its improvement is:
Also there is adjusting screw rod, screw sleeve, end face ring gearwheel clutch, return piston end cap, regulate spring, regulate spring end cap, guide rod and the second elastic component;
One end and the piston of described return piston offset, the other end is threaded with return piston end cap, described adjusting screw rod is arranged in the step hole of return piston, and one end and the load of return piston end cap, and described screw sleeve to be sleeved on adjusting screw rod and to be threaded with adjusting screw rod non-self-lock-ing;
The middle part of described adjusting screw rod has annular boss, described end face gear ring clutch pack draws together the first end face gear ring and the second end face gear ring, described first end face gear ring and return piston end cap are fixedly connected with or make one, described second end face gear ring is fixed on adjusting screw rod and with the side of annular boss and offsets, described second elastic component is arranged in the step hole of return piston, and be sleeved on adjusting screw rod, the side of the second elastic component and the opposite side of annular boss offset, and the step in the step hole of opposite side and return piston offsets;
Described guide rod is sleeved on screw sleeve, and threaded one end is connected on cylinder body, adjustment spring is housed between described guide rod and screw sleeve, described adjustment spring buckle is connected on screw sleeve, described adjustment spring end cap is sleeved on screw sleeve, and is threaded with the other end of guide rod;
Described screw sleeve is also equipped with fixing pin, and the end of fixing pin is arranged in the axial groove of the step hole of return piston;
Described first elastic component is sleeved on return piston, and one end and return piston offset, and the side of the other end and spring pedestal offsets;
Opposite side and the base bonnet of described spring pedestal offset.
In technique scheme, also have screw sleeve end cap, one end of described screw sleeve end cap is sleeved on the other end of adjusting screw rod, and is threaded with screw sleeve, and the other end of described screw sleeve end cap has annular stop.
In technique scheme, described first elastic component and the second elastic component are disc spring.
Sealing cover is equipped with in technique scheme, described base bonnet.
In technique scheme, described adjustment spring is set with lining, and described lining is positioned at guide rod.
In technique scheme, one end of described guide rod is fixedly connected with cylinder body screw thread.
In technique scheme, the middle part of described guide rod has the ring-shaped step offseted with cylinder body, and one end of guide rod is fixedly connected on cylinder body by nut.
The good effect that the present invention has is: the gap adjustment structure of oil cylinder inside adopts the clutch function of friction slip realization, replace mechanism's cone structure clutch of original gap adjustment, reduce screw pair quantity, structure is simple, component are less, volume is little, and packaging technology is easy, and processing cost is low, moreover, adopt friction mechanism to replace screw mechanism to make oil cylinder more reliable, even if when the little stroke of piston, this mechanism single regulated quantity also can be very large.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present invention;
Fig. 2 is that in the present invention, the master of return piston looks cross-sectional schematic;
Fig. 3 is the schematic side view of return piston in the present invention;
Fig. 4 is the schematic front view of the first end face gear ring and the second end face gear ring in the present invention;
Fig. 5 is the A-A cross-sectional schematic of the first end face gear ring and the second end face gear ring in the present invention;
Fig. 6 is the B-B cross-sectional schematic of the first end face gear ring and the second end face gear ring in the present invention;
Fig. 7 is that in the present invention, the master of screw sleeve looks cross-sectional schematic;
Fig. 8 is the cross-sectional schematic of the another kind of Placement of guide rod and cylinder body in the present invention.
Embodiment
Below in conjunction with accompanying drawing and the embodiment that provides, the present invention is further illustrated.
As shown in Figure 1, a kind of brake clamp oil cylinder, there is cylinder body 13, described cylinder body 13 is built with piston 1, return piston 2, first elastic component 16 and spring pedestal 12, described cylinder body 13 is fixedly connected with base bonnet 9, also there is adjusting screw rod 6, screw sleeve 5, end face ring gearwheel clutch 7, return piston end cap 8, regulate spring 10, regulate spring end cap 11, guide rod 3 and the second elastic component 17.
As shown in Figure 1, 2, 3, one end and the piston 1 of described return piston 2 offset, the other end is threaded with return piston end cap 8, described adjusting screw rod 6 is arranged in the step hole 2-1 of return piston 2, and one end and return piston end cap 8 load, described screw sleeve 5 to be sleeved on adjusting screw rod 6 and to be threaded with adjusting screw rod 6 non-self-lock-ing.
As Fig. 1, 4, 5, shown in 6, the middle part of described adjusting screw rod 6 has annular boss 6-1, described end face ring gearwheel clutch 7 comprises the first end face gear ring 7-1 and the second end face gear ring 7-2, described first end face gear ring 7-1 and return piston end cap 8 are fixedly connected with or make one, described second end face gear ring 7-2 to be fixed on adjusting screw rod 6 and to offset with the side of annular boss 6-1, described second elastic component 17 is arranged in the step hole 2-1 of return piston 2, and be sleeved on adjusting screw rod 6, the side of the second elastic component 17 and the opposite side of annular boss 6-1 offset, step 2-1-1 in the step hole 2-1 of opposite side and return piston 2 offsets.
As shown in Fig. 1,8, described guide rod 3 is sleeved on screw sleeve 5, and one end of guide rod 3 is fixedly connected with cylinder body 13 screw thread, be equipped with between described guide rod 3 and screw sleeve 5 and regulate spring 10, described adjustment spring 10 hoop is connected on screw sleeve 5, described adjustment spring end cap 11 is sleeved on screw sleeve 5, and is threaded with the other end of guide rod 3.Certainly, also can be that the middle part of described guide rod 3 has the ring-shaped step offseted with cylinder body 13, one end of guide rod 3 be fixedly connected on cylinder body 13 by nut 18.
As shown in Fig. 1,2,3,7, described screw sleeve 5 is also equipped with fixing pin 5-1, the end of fixing pin 5-1 is arranged in the axial groove 2-2 of the step hole 2-1 of return piston 2, and the rotation of restriction screw sleeve 5, makes screw sleeve 5 move axially.
As shown in Figure 1, described first elastic component 16 is sleeved on return piston 2, and two ends offset with the side of return piston 2 and spring pedestal 12 respectively.
Opposite side and the base bonnet 9 of described spring pedestal 12 offset.
Also have screw sleeve end cap 4, one end of described screw sleeve end cap 4 is sleeved on the other end of adjusting screw rod 6, and is threaded with screw sleeve 5, and the other end of described screw sleeve end cap 4 has annular stop 4-1, for transmitting the power of screw sleeve.
Described first elastic component 16 and the second elastic component 17 are disc spring, can well store and release energy.
Described base bonnet 9 is equipped with sealing cover 15, plays dustproof effect.
Described adjustment spring 10 is set with lining 14, and described lining 14 is positioned at guide rod 3, plays the effect of protection part and lubrication.
As shown in Fig. 1,7, described adjusting screw rod 6 has outside thread 6-2, described screw sleeve 5 has internal thread 5-2, described outside thread 6-2 and internal thread 5-2 is non-self-lock-ing screw thread.
As shown in Figure 1, described adjustment spring 10 binds round with screw sleeve 5 and connects in succession, and namely when screw sleeve 5 axially loaded is greater than screw sleeve 5 and regulate the frictional force between spring 10, screw sleeve 5 can produce axial relative sliding with adjustment spring 10.
As shown in Figure 1, the present invention in use, oil discharged by oil cylinder, the first elastic component 16 losing oil pressure can promote return piston 2 and piston 1 moves right, the return piston end cap 8 be now threaded with return piston 2 can promote adjusting screw rod 6 by end face ring gearwheel clutch 7 and move right, and drive the screw sleeve 5 be threaded with it to move by adjusting screw rod 6, outwards transmit braking force eventually through the screw sleeve end cap 4 be threaded with screw sleeve 5.Now, because the first end face gear ring 7-1 of end face ring gearwheel clutch 7 and the second end face gear ring 7-2 fits, limit the rotation of adjusting screw rod 6, and fixing pin 5-1 screw sleeve 5 is also equipped with, the end of fixing pin 5-1 is arranged in the axial groove 2-2 of the step hole 2-1 of return piston 2, limit the rotation of screw sleeve 5, screw sleeve 5 can only be moved axially, thus adjusting screw rod 6 and screw sleeve 5 can not relatively rotate.
When the logical oil of oil cylinder, be moved to the left with return piston 2 at the effect lower piston 1 of oil pressure, until the left side that hoop is connected on the adjustment spring 10 on adjusting screw rod 6 in succession offsets with regulating spring end cap 11, connect in succession owing to regulating spring 10 and screw sleeve 5 to bind round, if now oil pressure continuation effect makes adjusting screw rod 6 be moved to the left, regulate the frictional force between spring 10 and screw sleeve 5 that screw sleeve 5 can be hindered to be moved to the left, screw sleeve 5 is stopped mobile, the return piston end cap 8 be now threaded on return piston 2 continues to be moved to the left with return piston 2, the the first end face gear ring 7-1 be fixed on return piston end cap 8 is made to become disengaged condition with the second end face gear ring 7-2 be fixed on adjusting screw rod 6 from original fit-state, compress the second elastic component 17 simultaneously, again due to screw sleeve 5 and adjusting screw rod 6 for non-self-lock-ing is threaded and fixing pin 5-1 limits the rotation of screw sleeve 5, therefore under the thrust of the second elastic component 17, adjusting screw rod 6 carries out rotation, until the second end face gear ring 7-1 and the first end face gear ring 7-2 fits again, adjusting screw rod 6 stops operating and no longer stretches out, total length after adjusting screw rod 6 is threaded with screw sleeve 5 increases, serve the effect regulating and compensate, total length after this regulative mode is threaded with screw sleeve 5 by change adjusting screw rod 6, realize regulating and compensate, even if when the little stroke of piston, the regulated quantity of single also can be very large.
Claims (7)
1. a brake clamp oil cylinder, there is cylinder body (13), described cylinder body (13), built with piston (1), return piston (2), the first elastic component (16) and spring pedestal (12), described cylinder body (13) is fixedly connected with base bonnet (9), it is characterized in that:
A, also there is adjusting screw rod (6), screw sleeve (5), end face ring gearwheel clutch (7), return piston end cap (8), regulate spring (10), regulate spring end cap (11), guide rod (3) and the second elastic component (17);
One end and the piston (1) of b, described return piston (2) offset, the other end is threaded with return piston end cap (8), described adjusting screw rod (6) is arranged in the step hole (2-1) of return piston (2), and one end and return piston end cap (8) load, described screw sleeve (5) is sleeved on adjusting screw rod (6) and goes up and be threaded with adjusting screw rod (6) non-self-lock-ing;
C, the middle part of described adjusting screw rod (6) has annular boss (6-1), described end face ring gearwheel clutch (7) comprises the first end face gear ring (7-1) and the second end face gear ring (7-2), described first end face gear ring (7-1) and return piston end cap (8) are fixedly connected with or make one, described second end face gear ring (7-2) is fixedly connected on adjusting screw rod (6) and goes up and offset with the side of annular boss (6-1), described second elastic component (17) is arranged in the step hole (2-1) of return piston (2), and be sleeved on adjusting screw rod (6), the side of the second elastic component (17) and the opposite side of annular boss (6-1) offset, step (2-1-1) in the step hole (2-1) of opposite side and return piston (2) offsets,
D, described guide rod (3) are sleeved on screw sleeve (5), and threaded one end is connected on cylinder body (13), be equipped with between described guide rod (3) and screw sleeve (5) and regulate spring (10), described adjustment spring (10) hoop is connected on screw sleeve (5), described adjustment spring end cap (11) is sleeved on screw sleeve (5), and is threaded with the other end of guide rod (3);
E, described screw sleeve (5) are also equipped with fixing pin (5-1), and the end of fixing pin (5-1) is arranged in the axial groove (2-2) of the step hole (2-1) of return piston (2);
F, described first elastic component (16) are sleeved on return piston (2), and one end and return piston (2) offset, and the side of the other end and spring pedestal (12) offsets;
Opposite side and the base bonnet (9) of g, described spring pedestal (12) offset.
2. brake clamp oil cylinder according to claim 1, it is characterized in that: also there is screw sleeve end cap (4), one end of described screw sleeve end cap (4) is sleeved on the other end of adjusting screw rod (6), and be threaded with screw sleeve (5), the other end of described screw sleeve end cap (4) has annular stop (4-1).
3. brake clamp oil cylinder according to claim 1, is characterized in that: described first elastic component (16) and the second elastic component (17) are disc spring.
4. brake clamp oil cylinder according to claim 1, is characterized in that: described base bonnet (9) is equipped with sealing cover (15).
5. brake clamp oil cylinder according to claim 1, is characterized in that: described adjustment spring (10) is set with lining (14), and described lining (14) is positioned at guide rod (3).
6. brake clamp oil cylinder according to claim 1, is characterized in that: one end of described guide rod (3) is fixedly connected with cylinder body (13) screw thread.
7. brake clamp oil cylinder according to claim 1, is characterized in that: the middle part of described guide rod (3) has the ring-shaped step offseted with cylinder body (13), and one end of guide rod (3) is fixedly connected on cylinder body (13) by nut (18).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510805790.5A CN105351405B (en) | 2015-11-20 | 2015-11-20 | Brake clamp oil cylinder |
| PCT/CN2016/106408 WO2017084617A1 (en) | 2015-11-20 | 2016-11-18 | Cylinder and brake clamp device including same |
| CN201680065855.XA CN108474429B (en) | 2015-11-20 | 2016-11-18 | Oil cylinder and brake clamp device including the oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510805790.5A CN105351405B (en) | 2015-11-20 | 2015-11-20 | Brake clamp oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105351405A true CN105351405A (en) | 2016-02-24 |
| CN105351405B CN105351405B (en) | 2017-09-22 |
Family
ID=55327444
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510805790.5A Active CN105351405B (en) | 2015-11-20 | 2015-11-20 | Brake clamp oil cylinder |
| CN201680065855.XA Active CN108474429B (en) | 2015-11-20 | 2016-11-18 | Oil cylinder and brake clamp device including the oil cylinder |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680065855.XA Active CN108474429B (en) | 2015-11-20 | 2016-11-18 | Oil cylinder and brake clamp device including the oil cylinder |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN105351405B (en) |
| WO (1) | WO2017084617A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084617A1 (en) * | 2015-11-20 | 2017-05-26 | 中车戚墅堰机车车辆工艺研究所有限公司 | Cylinder and brake clamp device including same |
| CN109083952A (en) * | 2018-09-07 | 2018-12-25 | 南京中车浦镇海泰制动设备有限公司 | Hydraulic braking cylinder |
| CN109595222A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | A kind of isolation cylinder |
| CN110715002A (en) * | 2018-07-13 | 2020-01-21 | 纳博特斯克有限公司 | Clutch device and brake device |
| CN112682443A (en) * | 2019-10-17 | 2021-04-20 | 欣展晟股份有限公司 | Screw tooth two-way driving disc type brake piston reset tool |
| CN114992262A (en) * | 2022-06-30 | 2022-09-02 | 中车青岛四方车辆研究所有限公司 | Integrated spring power unit |
| CN116255407A (en) * | 2023-05-12 | 2023-06-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | Hydraulic control hybrid brake with abrasion self-compensation function |
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| CN106195075A (en) * | 2016-08-29 | 2016-12-07 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of checking cylinder clearance adjustment mechanism |
| CN107414544B (en) * | 2017-06-26 | 2023-08-04 | 日照市七星汽车部件股份有限公司 | Gapless high-precision positioning and clamping tool for inner supporting spring of automobile steering knuckle |
| CN109248944B (en) * | 2018-11-27 | 2023-08-11 | 安徽德系重工科技有限公司 | Elastic clamping device of numerical control pipe bending machine |
| CN110043584A (en) * | 2019-04-29 | 2019-07-23 | 北京中金泰达电液科技有限公司 | A kind of high-precision low friction No leakage wind power yawing hydraulic braking cylinder |
| CN113074614B (en) * | 2021-03-08 | 2023-10-03 | 安徽省恒泰动力科技有限公司 | Piston roundness testing device based on automatic feeding mechanism |
| CN113294462B (en) * | 2021-04-29 | 2023-07-28 | 中车青岛四方车辆研究所有限公司 | Spring power unit |
| CN114109958B (en) * | 2021-09-30 | 2024-01-30 | 中国北方车辆研究所 | Hydraulic steering centering oil cylinder |
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| CN104455113A (en) * | 2014-10-20 | 2015-03-25 | 青岛思锐科技有限公司 | Railway locomotive vehicle braking clamp unit |
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| CN105351405B (en) * | 2015-11-20 | 2017-09-22 | 常州中车铁马科技实业有限公司 | Brake clamp oil cylinder |
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- 2015-11-20 CN CN201510805790.5A patent/CN105351405B/en active Active
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- 2016-11-18 CN CN201680065855.XA patent/CN108474429B/en active Active
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| JPS5547027A (en) * | 1978-09-28 | 1980-04-02 | Akebono Brake Ind Co Ltd | Automatic brake gap adjustor for disc brake |
| US6435321B1 (en) * | 2000-11-16 | 2002-08-20 | Nabco, Ltd | Brake cylinder apparatus |
| CN103671643A (en) * | 2012-09-04 | 2014-03-26 | 襄阳彼勒液压机械有限公司 | Wet type vehicle brake braking force increasing mechanism |
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| CN104455113A (en) * | 2014-10-20 | 2015-03-25 | 青岛思锐科技有限公司 | Railway locomotive vehicle braking clamp unit |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084617A1 (en) * | 2015-11-20 | 2017-05-26 | 中车戚墅堰机车车辆工艺研究所有限公司 | Cylinder and brake clamp device including same |
| CN110715002A (en) * | 2018-07-13 | 2020-01-21 | 纳博特斯克有限公司 | Clutch device and brake device |
| CN110715002B (en) * | 2018-07-13 | 2021-12-28 | 纳博特斯克有限公司 | Clutch device and brake device |
| CN109083952A (en) * | 2018-09-07 | 2018-12-25 | 南京中车浦镇海泰制动设备有限公司 | Hydraulic braking cylinder |
| CN109595222A (en) * | 2019-01-02 | 2019-04-09 | 中船重工中南装备有限责任公司 | A kind of isolation cylinder |
| CN109595222B (en) * | 2019-01-02 | 2023-12-01 | 中船重工中南装备有限责任公司 | Isolation oil cylinder |
| CN112682443A (en) * | 2019-10-17 | 2021-04-20 | 欣展晟股份有限公司 | Screw tooth two-way driving disc type brake piston reset tool |
| CN114992262A (en) * | 2022-06-30 | 2022-09-02 | 中车青岛四方车辆研究所有限公司 | Integrated spring power unit |
| CN114992262B (en) * | 2022-06-30 | 2024-04-19 | 中车青岛四方车辆研究所有限公司 | Integrated spring power unit |
| CN116255407A (en) * | 2023-05-12 | 2023-06-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | Hydraulic control hybrid brake with abrasion self-compensation function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108474429A (en) | 2018-08-31 |
| CN108474429B (en) | 2019-10-25 |
| WO2017084617A1 (en) | 2017-05-26 |
| CN105351405B (en) | 2017-09-22 |
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