CN105485284A - Multi-section screw transmission - Google Patents
Multi-section screw transmission Download PDFInfo
- Publication number
- CN105485284A CN105485284A CN201410538178.1A CN201410538178A CN105485284A CN 105485284 A CN105485284 A CN 105485284A CN 201410538178 A CN201410538178 A CN 201410538178A CN 105485284 A CN105485284 A CN 105485284A
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- China
- Prior art keywords
- ball
- pedestal
- rod
- gear
- driving gear
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Abstract
The invention provides a multi-section screw transmission. The multi-section screw transmission is mainly characterized in that a plurality of sections of ball screws arranged in a straight line are mounted on one side of a base and a transmission shaft penetrates through the plurality of sections of ball screws to connect the ball screws; each ball screw is capable of appropriately moving on the transmission shaft under the action of an elastic force provided by a spring; and a transmission gear bank is arranged on the base and connected with the transmission shaft; in such a manner, the multi-section screw transmission can be applied, in combination with a C-shaped screw, to lifting equipment; by means of the composite construction of a screw joint portion with the C-shaped screw lengthened by using the plurality of sections of ball screws, the carrying capability and elastic application functions of the multi-section screw transmission are improved, and the ball screws can be manufactured more easily.
Description
Technical field
The present invention relates to a kind of helicoidal gear, particularly relate to a kind of in jacking equipment, in conjunction with C shape screw rod to provide the multi-section type helicoidal gear of transmission agency.
Background technique
In the jacking equipments such as lift known at present, mechanical three-dimensional parking device or elevator, it mainly utilizes drive unit collocation cable wire or chain driving device, is elevated in order to drive the carrier such as compartment, microscope carrier.Due to the security risks using cable wire or chain etc. to have fracture, in order to promote the Security of jacking equipment, the present inventor had previously once proposed " lowering or hoisting gear of screw unit and utilization screw unit " as TaiWan, China application No. 101150441 application for a patent for invention case discloses, and TaiWan, China announces " rotating component for lowering or hoisting gear " of M472136 utility model patent case announcement etc.In described two patent application cases, the present inventor utilizes the combination of ball screw and C shape screw rod, makes it be applied in jacking equipment, replaces the mechanism such as cable wire or chain driving device, avoid the risk that cable wire or chain etc. can rupture, and the good smoothness etc. when possessing transmission.
The screw-drive mechanism that aforementioned patent case discloses can reach it increases the smoothness of lifting moving and effect of Security.But the present inventor is after proposition aforementioned patent case, thinks further and how to maintain on the basis such as existing mobile smoothness and good Security, then promote the problem of screw-drive mechanism in conjunction with the carrying capacity of C shape screw rod.
Promoting the carrying capacity problem of screw-drive mechanism in conjunction with C shape screw rod to solve, under technology contents disclosed in aforementioned patent case, by the extended length of the ball screw in screw-drive mechanism, increasing the changes such as the structure of ball quantity and realizing.But during extended length because of components such as the ball screws in screw-drive mechanism, though can existing manufacturing technology be used realize, the ball screw of right genus large-scale component form can make its manufacture difficulty relatively improve, and the large-scale manufacturing equipment of high cost must be used to manufacture, simultaneously, ball screw after lengthening has and is difficult in problems such as screw-drive mechanism Elastic utilizations, therefore based on excelsior invention spirit, is necessary to be further improved this screw-drive mechanism.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of multi-section type helicoidal gear, solves the direct extended length of existing helicoidal gear and manufacture difficulty is improved and must use the technical problems such as large-scale manufacturing equipment manufactures.
In order to solve the problem, technical solution proposed by the invention is: provide a kind of multi-section type helicoidal gear, it comprises:
One pedestal, it includes a pedestal, and this pedestal side forms the pin-joint part that at least three are presented the arrangement of next linear interval, forms an assembly interval respectively between every two neighbouring pin-joint parts;
Multiple ball screw, it is rotatably hubbed in each assembly interval of described pedestal respectively, and described ball screw comprises one and has the body of rod of axis hole and multiple ball, the plurality of ball rollably helical arrangement in body of rod outer circumferential face;
Multiple spring, it is arranged in each assembly interval of described pedestal respectively, and between corresponding ball screw end and pin-joint part;
One transmission shaft, it is hubbed at pin-joint part and the spring of pedestal side, and is arranged in the axis hole of described multiple ball screw body of rod, and this transmission shaft and ball screw can rotate interlock, and ball screw can on transmission shaft axial slip; And
One driving gear set, it to be installed on pedestal and connection for transmission axle.
In multi-section type helicoidal gear as above, described transmission shaft comprises an axle portion and lays respectively at first end and the second end of axle portion upper and lower end, described axle portion wears pin-joint part and the spring of pedestal side, and in the axis hole of described multiple ball screw body of rod, the first end of described transmission shaft upper and lower end and the second end stretch out the pin-joint part of the top, pedestal side and the pin-joint part of bottom respectively, and transmission shaft the second end tip lock fastens nut; Described driving gear set comprises one first driving gear, one second driving gear and an intermediate drive gear, first driving gear is hubbed on pedestal, and the first driving gear comprises a wheel shaft, second driving gear is mounted on the first end of transmission shaft, and first end tip lock has fastened nut, second driving gear is combined and energy interlock with transmission shaft, described intermediate drive gear is hubbed on pedestal, and engages each other between the first driving gear and the second driving gear.
In multi-section type helicoidal gear as above, be respectively provided with a bearing in the pin-joint part of described pedestal, transmission shaft wears in the bearing being connected to described pin-joint part; Described pedestal is respectively provided with a carrier joint in pedestal both sides, and the gear-box of a hollow shape is set up at described pedestal top, first driving gear of described driving gear set and intermediate gear are hubbed in gear-box, and the wheel shaft of the first driving gear stretches out outside gear-box top.
In multi-section type helicoidal gear as above, between described lower spring end and corresponding ball screw end face, one thrust bearing is set, enables ball screw movable in the assembly space of pedestal.
In multi-section type helicoidal gear as above, the body of rod outer circumferential face of described ball screw forms at least one spiral ball grooves, described body of rod inside is also provided with at least one connectivity slot, each upper and lower two ends of spiral ball grooves is by being positioned at the inner corresponding connection of a connectivity slot and formation one circulating path of contacting, the plurality of ball spread configuration in the spiral ball grooves and connectivity slot of the body of rod, described ball is followed circulating path circulating rolling.
In multi-section type helicoidal gear as above, described body of rod outer circumferential face forms multiple spiral ball grooves be arranged above and below, the described body of rod is equiped with in every two neighbouring revolving between ball grooves the cover plate that has oblique connectivity slot, described neighbouring spiral ball grooves is communicated with respectively with the oblique connectivity slot two ends of cover plate, the uppermost position in fig-ure of the body of rod is revolved ball grooves upper end and is put spiral ball grooves lower end with lowermost position and be connected and formation one circulating path of contacting by the connectivity slot that is located at body of rod inside, enables described multiple ball follow circulating path circulating rolling.
The attainable beneficial functional of the present invention is: by above-mentioned multi-section type helicoidal gear invention, it is except being applied in jacking equipment in conjunction with C shape screw rod, the drive unit in jacking equipment can be connected, and drive carrier along outside C shape screw rod lifting moving, multi-section type helicoidal gear of the present invention also possesses following plurality of advantages further:
1, lifting capacity is increased: multi-section type helicoidal gear of the present invention utilizes a transmission shaft group to connect multiple ball screw, is lengthened the composite construction at the position that is spirally connected between C shape screw rod, increase its carrying capacity by multistage ball screw.
2, elasticity language function is possessed: each ball screw can be controlled in more suitable length by multi-section type helicoidal gear of the present invention, and ball screw length can be increased and decreased according to the load-carrying demand of jacking equipment, or make the matched combined of ball screw of unequal length, make to possess good elasticity language function between multistage ball screw of the present invention and C shape screw rod.
3, easily process: each ball screw can be controlled in more suitable length by multi-section type helicoidal gear of the present invention, makes it be easy to manufacturing, reduces the difficulty of its manufacturing technology, and need not use large-scale manufacturing equipment to manufacture.
4, the error of assembling is reduced: multi-section type helicoidal gear of the present invention is mounted on interlock on transmission shaft by multistage ball screw, and arrange in pairs or groups between each ball screw and the pin-joint part above it composite constructions such as spring are set, make each ball screw can be moderately movable in the assembly interval of pedestal side, and can be combined by the thread groove of automatic adjusting position in C shape screw rod neatly, effectively reduce and the size error that is spirally connected between C shape screw rod, and smoothness when guaranteeing its overall start.
Accompanying drawing explanation
Fig. 1 is the three-dimensional appearance schematic diagram of a preferred embodiment of multi-section type helicoidal gear of the present invention.
Fig. 2 is the perspective exploded view of the helicoidal gear of multi-section type shown in Fig. 1 preferred embodiment.
Fig. 3 is the side-looking floor map of the helicoidal gear of multi-section type shown in Fig. 1 preferred embodiment.
Fig. 4 is the partial exploded view of ball screw shown in Fig. 3.
Fig. 5 is the schematic perspective view of the helicoidal gear of multi-section type shown in Fig. 1 preferred embodiment in conjunction with C shape screw rod.
Fig. 6 is the enlarged diagram at corral place of circle institute in Fig. 5.
The simple declaration of Main Reference label:
10 pedestal 11 pedestals
12 pin-joint part 13 assembly intervals
14 bearing 15 gear-boxes
16 carrier joints
20 ball screw 21 bodies of rod
211 axis hole 212 spiral ball grooves
22 ball 23 cover plates
231 oblique connectivity slots
30 spring 31 thrust bearings
40 transmission shaft 41 axle portions
42 first end 43 the second ends
50 driving gear set 51 first driving gears
511 wheel shaft 52 second driving gears
53 intermediate drive gears
60C shape screw rod 61 thread groove.
Embodiment
With the following drawings and preferred embodiments of the present invention, the technological means that the present invention takes for reaching predetermined goal of the invention is set forth further.
As shown in Figure 1 to Figure 2, there is disclosed a preferred embodiment of multi-section type helicoidal gear of the present invention, the composition of described multi-section type helicoidal gear comprises: a pedestal 10, multiple ball screw 20, multiple spring 30, transmission shaft 40 and a driving gear set 50.
As shown in Figure 1 to Figure 3, described pedestal 10 comprises a pedestal 11, described pedestal 11 side forms the pin-joint part 12 that at least three are presented the arrangement of next linear interval, an assembly interval 13 is formed respectively between every two neighbouring pin-joint parts 12, namely pedestal 11 side has the assembly interval 13 that multistage is a linear array, is respectively provided with a bearing 14 in described pin-joint part 12.
As shown in Figures 1 and 2, described pedestal 10 also can set up the gear-box 15 of a hollow shape further at pedestal 11 top.Described pedestal 10 also can respectively be provided with a carrier joint 16 in pedestal 11 both sides, in order to the position providing a carrier to connect.
As shown in Figure 1 to Figure 3, described multiple ball screw 20 is mounted in multiple assembly intervals 13 of pedestal 10 side revolvably respectively, described ball screw 20 comprises a body of rod 21 and multiple ball 22, an axis hole 211 axially run through is formed in the described body of rod 21, described axis hole 211 is a non-circular perforation, and such as axis hole 211 can be to be looked closely in non-circular geometrical shape such as flower flute profile, polygonal etc.In this preferred embodiment, axis hole 211 is the perforation of flower flute profile.
As shown in Figure 1 to Figure 3, the described body of rod 21 outer circumferential face forms at least one spiral ball grooves 212, the described body of rod 21 inside is also provided with at least one connectivity slot, each spiral ball grooves 212 two ends is formation one circulating path of contacting by the corresponding connection of a connectivity slot, the plurality of ball 22 spread configuration in the spiral ball grooves 212 of the body of rod 21 outer circumferential face and the connectivity slot of the body of rod 21 inside, described ball 22 can be followed described circulating path circulating rolling.
As shown in Figures 2 and 4, when the described body of rod 21 outer circumferential face forms multiple spiral ball grooves 212 be arranged above and below, the described body of rod 21 can also be equiped with every two neighbouring revolving between ball grooves 212 cover plate 23 that has oblique connectivity slot 231, described neighbouring spiral ball grooves 212 is communicated with respectively by oblique connectivity slot 231 two ends of cover plate 23, and uppermost position in fig-ure spiral ball grooves 212 upper end of the body of rod 213 is put with lowermost position the connectivity slot being located at the body of rod 21 inside by between spiral ball grooves 212 lower end and is connected, and formation one circulating path of contacting, the plurality of ball 22 can be rolled in the spiral ball grooves 212 of the body of rod 21.
As shown in Figure 1 to Figure 3, described multiple spring 30 is arranged between the bottom surface, pin-joint part 12 above each ball screw 20 and above it respectively, described spring 30 upper end is connected to bottom surface, pin-joint part 12, spring 30 lower end directly can be connected to ball screw 20 end face, or, one thrust bearing 31 is set between spring 30 lower end and ball screw 20 end face, make spring 30 indirectly impose elastic force to ball screw 20 by thrust bearing 31, and make ball screw 20 can be moderately movable at the assembly interval 13 of pedestal 10.
As shown in Figure 1 to Figure 3, described transmission shaft 40 comprises an axle portion 41 and is positioned at first end 42 and a second end 43 at two ends, axle portion about 41, the axle portion 41 of transmission shaft 40 wears in the bearing 14 of each pin-joint part 12 of described pedestal 10, spring 30, thrust bearing 31 and ball screw 20, described transmission shaft 40 first end 42 protrudes upward pin-joint part 12 end face of the top, pedestal 10 side, and described transmission shaft 40 the second end 43 stretches out the bottom surface, pin-joint part 12 of pedestal 10 side bottom downwards.In this preferred embodiment, transmission shaft 40 first end 42 and the second end 43 outer circumferential face form screw thread, and the end that transmission shaft 40 the second end 43 stretches out the bottom surface, pin-joint part 12 of pedestal 10 side bottom is spirally connected nut.To be sectional shapes be in the axle portion 41 of described transmission shaft 40 corresponds to the non-circular axis hole 211 of the body of rod 21 of ball screw 20, and axle portion 41 sectional shape of described transmission shaft 40 can be the non-circular geometrical shapies such as colored flute profile, polygonal.In this preferred embodiment, the body of rod 21 axis hole 211 of ball screw 20 is the perforation of flower flute profile, the axle portion 41 of described transmission shaft 40 corresponds to the shape of described colored flute profile axis hole 211, makes transmission shaft 40 and ball screw 20 rotate interlock, and ball screw 20 can on transmission shaft 40 axial slip.
As shown in Figure 1 to Figure 3, described driving gear set 50 comprises one first driving gear 51 and one second driving gear 52, first driving gear 51 is hubbed in the gear-box 15 of pedestal 10, first driving gear 51 includes a wheel shaft 511, described wheel shaft 511 stretches out gear-box 15 end face, second driving gear 52 is mounted on the first end 42 of transmission shaft 40, and is tightly fixed on first end 42 end by nut lock, the second driving gear 52 is combined and energy interlock with transmission shaft 40.Described second driving gear 52 can directly be meshed with the first driving gear 51, or, as shown in Figure 1 to Figure 3, described driving gear set 50 also includes an intermediate drive gear 53, described intermediate drive gear 53 is hubbed in the gear-box 15 of pedestal 10, and engages each other between the first driving gear 51 and the second driving gear 52.
When multi-section type helicoidal gear of the present invention is applied in jacking equipment, described multi-section type helicoidal gear is fixed on the carrier of jacking equipment with its pedestal.As shown in Fig. 1, Fig. 5 and Fig. 6, described multi-section type helicoidal gear is established on the C shape screw rod 60 that is fixed on wall with its multiple ball screw 20 groups, wherein, be located in the thread groove 61 in C shape screw rod 60 by multiple ball screws 20 of pedestal 10 side with its multiple ball 22 spiral shell, pedestal 10 is positioned at outside C shape screw rod 60 by the notch of C shape screw rod 60 side, separately connects the drive unit on carrier with the wheel shaft 511 of the first driving gear 51 of driving gear set 50.Therefore, the drive unit on carrier can be utilized to drive described multiple ball screw 20 to rotate by driving gear set 50 and transmission shaft 40, by in the thread groove 61 of ball screw 20 in C shape screw rod 60 clockwise or be rotated counterclockwise, and drive carrier in the elevating movement of C shape screw rod 60.
The above is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, not departing from the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of the claims in the present invention.
Claims (8)
1. a multi-section type helicoidal gear, is characterized in that, it comprises:
One pedestal, it comprises a pedestal, and described pedestal side forms the pin-joint part that at least three are presented the arrangement of next linear interval, forms an assembly interval respectively between every two neighbouring pin-joint parts;
Many ball screws, it can be hubbed in each assembly interval of described pedestal respectively rotatably, and described ball screw comprises one and has the body of rod of axis hole and multiple ball, the plurality of ball be can rollably helical arrangement in body of rod outer circumferential face;
Multiple spring, it is arranged in each assembly interval of described pedestal respectively, and between corresponding ball screw end and pin-joint part;
One transmission shaft, it is hubbed at pin-joint part and the spring of pedestal side, and is arranged in the axis hole of described multiple ball screw body of rod, and transmission shaft and ball screw can rotate interlock, and ball screw can on transmission shaft axial slip; And
One driving gear set, it to be installed on pedestal and connection for transmission axle.
2. multi-section type helicoidal gear according to claim 1, it is characterized in that, described transmission shaft comprises an axle portion and lays respectively at first end and the second end of axle portion upper and lower end, described axle portion wears pin-joint part and the spring of pedestal side, and in the axis hole of described multiple ball screw body of rod, the first end of described transmission shaft upper and lower end and the second end stretch out the pin-joint part of the top, pedestal side and the pin-joint part of bottom respectively, and transmission shaft the second end tip lock fastens nut; Described driving gear set comprises one first driving gear, one second driving gear and an intermediate drive gear, first driving gear is hubbed on pedestal, and the first driving gear comprises a wheel shaft, second driving gear is mounted on the first end of transmission shaft, and first end tip lock has fastened nut, second driving gear is combined and energy interlock with transmission shaft, described intermediate drive gear is hubbed on pedestal, and engages each other between the first driving gear and the second driving gear.
3. multi-section type helicoidal gear according to claim 2, is characterized in that, is respectively provided with a bearing in the pin-joint part of described pedestal, and transmission shaft wears in the bearing being connected to described pin-joint part; Described pedestal is respectively provided with a carrier joint in pedestal both sides, and the gear-box of a hollow shape is set up at described pedestal top, first driving gear of described driving gear set and intermediate gear are hubbed in gear-box, and the wheel shaft of the first driving gear stretches out outside gear-box top.
4. the multi-section type helicoidal gear according to claim 1,2 or 3, is characterized in that, arranges a thrust bearing between described lower spring end and corresponding ball screw end face, enables ball screw movable in the assembly space of pedestal.
5. the multi-section type helicoidal gear according to claim 1,2 or 3, it is characterized in that, the body of rod outer circumferential face of described ball screw forms at least one spiral ball grooves, described body of rod inside is also provided with at least one connectivity slot, each upper and lower two ends of spiral ball grooves is by being positioned at the inner corresponding connection of a connectivity slot and formation one circulating path of contacting, described multiple ball spread configuration in the spiral ball grooves and connectivity slot of the body of rod, described ball is followed circulating path circulating rolling.
6. multi-section type helicoidal gear according to claim 4, it is characterized in that, the body of rod outer circumferential face of described ball screw forms at least one spiral ball grooves, described body of rod inside is also provided with at least one connectivity slot, each upper and lower two ends of spiral ball grooves is by being positioned at the inner corresponding connection of a connectivity slot and formation one circulating path of contacting, the plurality of ball spread configuration in the spiral ball grooves and connectivity slot of the body of rod, described ball is followed circulating path circulating rolling.
7. according to claim 1, multi-section type helicoidal gear described in 2 or 3, it is characterized in that, described body of rod outer circumferential face forms multiple spiral ball grooves be arranged above and below, the described body of rod is equiped with every two neighbouring revolving between ball grooves the cover plate that has oblique connectivity slot, described neighbouring spiral ball grooves is communicated with respectively with the oblique connectivity slot two ends of cover plate, the uppermost position in fig-ure of the body of rod is revolved ball grooves upper end and is put spiral ball grooves lower end with lowermost position and be connected and formation one circulating path of contacting by the connectivity slot that is located at body of rod inside, described multiple ball is enable to follow circulating path circulating rolling.
8. multi-section type helicoidal gear according to claim 4, it is characterized in that, described body of rod outer circumferential face forms multiple spiral ball grooves be arranged above and below, the described body of rod is equiped with every two neighbouring revolving between ball grooves the cover plate that has oblique connectivity slot, described neighbouring spiral ball grooves is communicated with respectively with the oblique connectivity slot two ends of cover plate, uppermost position in fig-ure spiral ball grooves upper end and the lowermost position of the body of rod are put spiral ball grooves lower end and are connected and formation one circulating path of contacting by the connectivity slot that is located at body of rod inside, described multiple ball is enable to follow circulating path circulating rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538178.1A CN105485284A (en) | 2014-10-13 | 2014-10-13 | Multi-section screw transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410538178.1A CN105485284A (en) | 2014-10-13 | 2014-10-13 | Multi-section screw transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105485284A true CN105485284A (en) | 2016-04-13 |
Family
ID=55672470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410538178.1A Pending CN105485284A (en) | 2014-10-13 | 2014-10-13 | Multi-section screw transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105485284A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051923A (en) * | 1976-10-20 | 1977-10-04 | Lionel Blanchette | Cableless cage elevator |
| JPH061564A (en) * | 1992-06-15 | 1994-01-11 | Kokusai Electric Co Ltd | Elevator |
| JPH09315730A (en) * | 1996-05-29 | 1997-12-09 | Hirotsuku Tekunika Kk | Safety device of screw type elevator |
| KR20110123349A (en) * | 2010-05-07 | 2011-11-15 | 이동근 | Elevator for low floor |
| CN103104671A (en) * | 2012-12-31 | 2013-05-15 | 陈铭津 | Screw unit and lifting device utilizing screw unit |
| CN103264945A (en) * | 2013-06-06 | 2013-08-28 | 金徐凯 | Embedded safe elevator |
| TWM472136U (en) * | 2013-08-22 | 2014-02-11 | Ming-Jin Chen | Rotary member for elevating device |
-
2014
- 2014-10-13 CN CN201410538178.1A patent/CN105485284A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051923A (en) * | 1976-10-20 | 1977-10-04 | Lionel Blanchette | Cableless cage elevator |
| JPH061564A (en) * | 1992-06-15 | 1994-01-11 | Kokusai Electric Co Ltd | Elevator |
| JPH09315730A (en) * | 1996-05-29 | 1997-12-09 | Hirotsuku Tekunika Kk | Safety device of screw type elevator |
| KR20110123349A (en) * | 2010-05-07 | 2011-11-15 | 이동근 | Elevator for low floor |
| CN103104671A (en) * | 2012-12-31 | 2013-05-15 | 陈铭津 | Screw unit and lifting device utilizing screw unit |
| CN103264945A (en) * | 2013-06-06 | 2013-08-28 | 金徐凯 | Embedded safe elevator |
| TWM472136U (en) * | 2013-08-22 | 2014-02-11 | Ming-Jin Chen | Rotary member for elevating device |
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Effective date of abandoning: 20180622 |