CN109534197B - Clamping and lifting method for integrally moving clamping type optical fiber disc - Google Patents
Clamping and lifting method for integrally moving clamping type optical fiber disc Download PDFInfo
- Publication number
- CN109534197B CN109534197B CN201811408237.8A CN201811408237A CN109534197B CN 109534197 B CN109534197 B CN 109534197B CN 201811408237 A CN201811408237 A CN 201811408237A CN 109534197 B CN109534197 B CN 109534197B
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- lifting
- optical fiber
- fiber disc
- horizontal
- support frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to an integral moving clamping type optical fiber disc clamping and lifting method, which comprises the following steps that firstly, two support frames are oppositely arranged on a slide rail, and an optical fiber disc lifting space is formed between the two side frames; secondly, transferring the optical fiber disc into an optical fiber disc lifting space; thirdly, driving two threaded rods to rotate through a double-end motor, and driving two support frames to fold through the threaded rods so as to enable two horizontal lifting rods to be inserted into a central space of the optical fiber disc from the two axial ends of the optical fiber disc to enable the clamping blocks to be abutted against the two ends of the optical fiber disc; fourthly, driving the lifting block to lift through a lifting motor so as to lift the optical fiber disc; and fifthly, driving the two threaded rods to rotate through the double-head motor, driving the two support frames to be separated through the threaded rods, and enabling the horizontal lifting rod to be pulled out of the optical fiber disc. The invention provides an integral moving clamping type optical fiber disk clamping and lifting method for inserting a horizontal lifting rod into an optical fiber disk through a magnet, and provides a technical scheme with different technical concepts for inserting the horizontal lifting rod into the optical fiber disk.
Description
Technical Field
The invention relates to the technical field of optical fiber production, in particular to an integral moving clamping type optical fiber disc clamping and lifting method.
Background
During the production of the optical fiber trays, the trays need to be lifted from a low position to a high position. This action is accomplished by clamping the lifting device. The existing included angle lifting device realizes that a horizontal lifting rod is inserted into an optical fiber disc through the driving of a horizontal cylinder, so that the horizontal cylinder is stressed in the lifting process, and the horizontal stress of the cylinder has the defect of easy damage; in order to enable the horizontal lifting rod to be conveniently and easily inserted into the central hole of the optical fiber disc, the size of the horizontal lifting rod is smaller than that of the central hole of the optical fiber disc, so that the optical fiber disc can move relative to the horizontal lifting rod, and the optical fiber disc is easy to shake in the lifting process.
Disclosure of Invention
The invention aims to provide an integral moving clamping type optical fiber disk clamping and lifting method for inserting a horizontal lifting rod into an optical fiber disk through a magnet, and provides a technical scheme with different technical concepts for inserting the horizontal lifting rod into the optical fiber disk.
A second object of the present invention is to further provide an overall moving clamping type optical fiber disc clamping and lifting method capable of preventing the optical fiber disc from moving relative to the horizontal lifting rod, which solves the problem that the optical fiber disc is easy to shake during lifting due to the relative movement between the horizontal lifting rod and the optical fiber disc.
The technical problem is solved by the following technical scheme: the clamping type optical fiber disc clamping and lifting method is characterized in that in the first step, two support frames are oppositely arranged on a slide rail, an optical fiber disc lifting space is formed between the two support frames, a double-end motor is arranged on the slide rail, two threaded rods are correspondingly and respectively in threaded connection with the two support frames, the two threaded rods are respectively connected with two power output heads of the double-end motor, the thread directions of the two threaded rods are opposite, a lifting motor and a sliding groove extending along the vertical direction are arranged on the support frames, the sliding groove is positioned on one side of the support frames facing the optical fiber disc lifting space, a lifting block is connected in the sliding groove in a sliding manner, the lifting block is connected with a horizontal lifting rod, and a clamping block is arranged on the horizontal lifting rod; secondly, transferring the optical fiber disc into an optical fiber disc lifting space, enabling the axial direction of the optical fiber disc to be the same as the distribution direction of the two support frames, and enabling the central hole of the optical fiber disc to be aligned with the horizontal lifting rods on the two support frames simultaneously; thirdly, driving two threaded rods to rotate through a double-end motor, and driving two support frames to fold through the threaded rods so as to enable two horizontal lifting rods to be inserted into the central hole of the optical fiber disc from the two axial ends of the optical fiber disc to abut against the two ends of the optical fiber disc through clamping blocks; fourthly, driving a lifting motor, wherein the lifting motor drives a lifting block to lift so as to lift the optical fiber disc to reach a position with a set height; and fifthly, driving the two threaded rods to rotate through the double-head motor, driving the two support frames to be separated through the threaded rods, and enabling the horizontal lifting rod to be pulled out of the optical fiber disc.
Preferably, in the first step, a vertical cylinder body is further arranged on the support frame, a vertical cylinder piston is connected in the vertical cylinder body in a sealing and sliding manner, an upper air cavity is isolated by the vertical cylinder piston in the vertical cylinder body, the lifting block is connected with the vertical cylinder piston through a vertical connecting rod, an air chamber is arranged in a part, away from the support frame, of the horizontal lifting rod, the horizontal lifting rod is positioned at one side of the clamping block, the air chamber is communicated with the upper air cavity, the air chamber is provided with at least two lifting rod part sliding holes which are distributed along the circumferential direction of the horizontal lifting rod and extend in the radial direction, a puller pin is connected in the lifting rod part sliding hole in a sealing and sliding manner, a puller pin return spring for driving the puller pin to contract towards the inside of the air chamber is arranged at the inner end of the puller pin, and the upper air cavity is provided; in the fourth step, when the lifting block rises, the vertical connecting rod drives the vertical cylinder piston to rise so as to drive the gas in the upper gas cavity to flow to the gas chamber, so that the gas pressure in the gas chamber rises, and when the gas pressure in the gas chamber rises, the jacking pin is driven to extend out and be jacked on the peripheral surface of the central hole of the optical fiber disc, so that the optical fiber disc is prevented from moving relative to the horizontal lifting rod; when the air pressure in the air chamber exceeds a set value and the lifting block continues to rise to drive the air pressure in the air chamber to continue to rise, the pressure is released through the pressure limiting valve to prevent the overload of the lifting motor; and lifting the optical fiber disc to be higher than the set height and then descending the optical fiber disc to the set height, so that the pressure in the air chamber is lower than the air pressure in the lifting stage of the lifting block, the puller is driven to retract, and the horizontal lifting rod in the fifth step can be extracted from the optical fiber disc through the groove. The second object of the invention is achieved.
Preferably, in the first step, a vertical connecting rod part air passage is further arranged in the vertical connecting rod, and a horizontal lifting rod part air passage is arranged in the horizontal lifting rod; and fourthly, the air in the upper air cavity and the air chamber is communicated by butting the air passage of the vertical connecting rod part and the air passage of the horizontal lifting rod part. This technical scheme does not need external flexible trachea and has realized the intercommunication of relative position between the air chamber of change and last air chamber, does not need to connect the trachea then not only the overall arrangement compactness but also can not produce the phenomenon that the trachea winding was held by the moving object.
Preferably, in the first step, the vertical cylinder portion piston further isolates a buffer air cavity of the sealing structure below the vertical cylinder portion piston in the vertical cylinder body, and the buffer air cavity is filled with air, so that when the lifting block falls, the vertical cylinder body suspends the lifting block and avoids rigid impact between the vertical piston and the vertical cylinder body.
Preferably, in the first step, a first correlation type photoelectric switch is arranged between the two support frames, a second correlation type photoelectric switch is arranged between the horizontal lifting rods of the two support frames, the number of the second correlation type photoelectric switches is two, the two second correlation type photoelectric switches are arranged on the two tightening heads in a one-to-one correspondence manner, and the two tightening heads provided with the second correlation type photoelectric switches are uniformly distributed along the circumferential direction of the horizontal lifting rods; in the third step, when the first correlation photoelectric switch is shielded and the second correlation photoelectric switch is not shielded, the control unit drives the double-headed motor to insert the horizontal lifting rod into the optical fiber disc, and then the lifting motor is started to lift the optical fiber disc. The reliability is good when the horizontal lifting rod is inserted into the central hole of the optical fiber disc.
Preferably, an end wall is arranged at the lower end of the sliding groove in the first step, and a damping spring which stretches and contracts along the vertical direction is arranged on the end wall, so that the damping spring damps the lifting block when the lifting block falls.
Preferably, in the first step, a wire spool is further arranged on the support frame, and the wire spool is connected with the lifting block through a pull rope; and in the fourth step, the wire spool is driven by the lifting motor to rotate, so that the lifting block is pulled through the inhaul cable, and the lifting of the lifting block is realized.
Preferably, the slide rail is provided with a positioning pit, the double-end motor is arranged in the positioning pit, the threaded rods are provided with positioning rings, and the positioning rings on the two threaded rods are matched with two end walls of the positioning pit in a one-to-one correspondence manner. The two support frames can be prevented from moving towards one direction simultaneously to damage the motor and generate central position deviation.
Preferably, the two end walls of the positioning pit are provided with supporting rolling balls for supporting the positioning ring of the column when the positioning ring abuts against the end walls. The threaded rod can still rotate freely when the positioning ring abuts against the end wall of the positioning pit.
The invention has the following advantages: the support frame is integrally moved to be inserted, so that the movable connection between the horizontal lifting rod and the lifting block is avoided, and the reliable connection between the horizontal lifting rod and the lifting block is convenient to realize. The optical fiber disc is not easy to shake in the lifting process.
Drawings
Fig. 1 is a schematic view of a fiber optic disc lifted by the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a partially enlarged schematic view of a portion B of fig. 1.
Fig. 4 is a partially enlarged schematic view of fig. 1 at C.
In the figure: the device comprises a support frame 1, an optical fiber disc lifting space S, a lifting motor 11, a wire spool 111, a pull cable 112, a vertical cylinder body 12, a vertical cylinder part piston 121, an upper air cavity 122, a buffer air cavity 123, a vertical connecting rod 124, a vertical connecting rod part air passage 125, a pressure limiting valve 126, a one-way valve 127, a sliding chute 13, an end wall 131, a buffer vibration spring 132, a lifting block 14, a horizontal lifting rod 15, an electromagnet 151, an iron block 152, a clamping block 153, an air chamber 154, a horizontal lifting rod part air passage 155, a lifting rod part sliding hole 156, a puller pin 157, a puller pin return spring 158, a first correlation photoelectric switch 16, a second correlation photoelectric switch 17, an optical fiber disc 2, a central hole 21, a sliding rail 3, a positioning pit 31, a double-head motor 32, a threaded rod 33, a positioning ring 34, an end wall 35 and a.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, 2 and 3, the method for clamping and lifting the integrally moving clamping type optical fiber disc is characterized in that two support frames 1 are oppositely arranged on a slide rail 3 in the first step. An optical fiber disc lifting space S is formed between the two support frames. The slide rail 3 is provided with a positioning pit 31. A double-head motor 32 is arranged in the positioning pit. Two power output heads of the double-head motor are respectively connected with a threaded rod 33. Two threaded rods are in threaded connection with the two support frames in a one-to-one correspondence manner. The two threaded rods have opposite thread directions. A retaining ring 34 is provided on the threaded rod. The retaining rings on the two threaded rods cooperate one-to-one with the two end walls 35 of the retaining pockets. Both end walls of the locating pocket are provided with support balls 36 which support the locating ring of the post when the locating ring abuts the end wall. When in use, the threaded rod is driven to rotate by the double-head motor so as to drive the two support frames to be separated and combined. When the two support frames generate translation with the same direction, the positioning ring abuts against the support rolling ball so as to limit the generation of the translation.
The support frame is provided with a lifting motor 11, a vertical cylinder body 12 and a sliding chute 13 extending along the vertical direction. The elevating motor is connected to the wire spool 111. The spool is connected to the lift block 14 by a cable 112. The spout is located the support frame towards the one side in fiber reel lift space. An end wall 131 is provided at the lower end of the chute. The end wall is provided with a damper spring 132 that extends and contracts in the vertical direction. The lifting block is connected in the sliding groove in a sliding mode. Horizontal lifting rods 15 are provided on the lifting blocks, in particular welded together. An electromagnet 151 is provided on the horizontal lifting bar on the left-hand support frame, and an iron block 152 is provided on the horizontal lifting bar on the right-hand support frame. A clamping block 153 is provided on the horizontal lifting bar. A vertical cylinder piston 121 is connected in a sliding and sealing manner in the vertical cylinder body. The vertical cylinder part piston isolates an upper air cavity 122 and a buffer air cavity 123 with a sealed structure in the vertical cylinder body. And gas is filled in the buffer gas cavity. The lift blocks are coupled to the vertical cylinder section pistons by vertical connecting rods 124. A vertical connecting rod part air passage 125 is arranged in the vertical connecting rod. The upper air chamber is provided with a pressure limiting valve 126 opening to the outside of the upper air chamber and a check valve 127 opening to the inside of the upper air chamber. An air chamber 154 is provided in the portion of the horizontal lifting bar on the side of the clamping block remote from the support bracket. A horizontal lifter air passage 155 is provided in the horizontal lifter. The vertical connecting rod air passage 125 and the horizontal lifting rod air passage 155 are butted together in the lifter block to communicate the air chamber with the upper air chamber. The plenum is provided with two lifter bar slide holes 156. The lifter bar slide holes 156 are circumferentially distributed along the horizontal lifter bar. The lift bar slide hole 156 extends radially along the horizontal lift bar. The lifting rod part slide hole is internally connected with a puller pin 157 in a sealing and sliding way. The inner end of the puller pin is provided with a puller pin return spring 158 which drives the puller pin to contract towards the air chamber. A first correlation photoelectric switch 16 is arranged between the two support frames. Two second correlation photoelectric switches 17 are arranged between the horizontal lifting rods of the two support frames. The two second correlation photoelectric switches are arranged on the tail ends of the outer ends of the two tightening pins in a one-to-one correspondence mode.
Secondly, transferring the optical fiber disc 2 into an optical fiber disc lifting space, enabling the axial direction of the optical fiber disc to be the same as the distribution direction of the two support frames, and enabling the central hole 21 of the optical fiber disc to be aligned with the horizontal lifting rods on the two support frames simultaneously;
thirdly, when the first correlation type photoelectric switch is shielded and the second correlation type photoelectric switch is not shielded, the control unit firstly enables the double-head motor to rotate, the double-head motor drives the threaded rod to rotate when rotating, and the threaded rod drives the two support frames to fold so that the horizontal lifting rod is inserted into the central hole until the clamping blocks are abutted to two ends of the optical fiber disc 2;
fourthly, starting a lifting motor, and driving a wire spool to rotate by the lifting motor so as to pull the lifting block through a stay cable and realize that the lifting block is lifted to reach a position with a set height; when the lifting block rises, the vertical connecting rod drives the vertical cylinder piston to rise so as to drive the gas in the upper gas cavity to flow to the gas chamber, so that the gas pressure in the gas chamber rises, and when the gas pressure in the gas chamber rises, the jacking pin is driven to extend out and jack the periphery of the central hole of the optical fiber disc, so that the optical fiber disc is prevented from moving relative to the horizontal lifting rod; when the air pressure in the air chamber exceeds a set value and the lifting block continues to rise to drive the air pressure in the air chamber to continue to rise, the pressure is released through the pressure limiting valve to prevent the overload of the lifting motor; during lifting, the optical fiber disc is lifted to a position higher than the set height and then is lowered to the set height, so that the pressure in the air chamber is lower than the air pressure in the lifting stage of the lifting block, the puller is driven to retract, and the horizontal lifting rod in the fifth step can be extracted from the optical fiber disc through the groove; and the air in the upper air cavity and the air chamber circulates through the vertical connecting rod part air passage and the horizontal lifting rod part air passage.
And fifthly, the control unit enables the double-headed motor to rotate, the double-headed motor drives the threaded rod to rotate when rotating, and the threaded rod drives the two support frames to be separated, so that the horizontal lifting rod is pulled out from the optical fiber disc.
Claims (5)
1. The clamping type optical fiber disc clamping and lifting method is characterized in that in the first step, two support frames are oppositely arranged on a slide rail, an optical fiber disc lifting space is formed between the two support frames, a double-end motor is arranged on the slide rail, two threaded rods are correspondingly and respectively in threaded connection with the two support frames, the two threaded rods are respectively connected with two power output heads of the double-end motor, the thread directions of the two threaded rods are opposite, a lifting motor and a sliding groove extending along the vertical direction are arranged on the support frames, the sliding groove is positioned on one side of the support frames facing the optical fiber disc lifting space, a lifting block is connected in the sliding groove in a sliding manner, the lifting block is connected with a horizontal lifting rod, and a clamping block is arranged on the horizontal lifting rod; secondly, transferring the optical fiber disc into an optical fiber disc lifting space, enabling the axial direction of the optical fiber disc to be the same as the distribution direction of the two support frames, and enabling the central hole of the optical fiber disc to be aligned with the horizontal lifting rods on the two support frames simultaneously; thirdly, driving two threaded rods to rotate through a double-end motor, and driving two support frames to fold through the threaded rods so as to enable two horizontal lifting rods to be inserted into the central hole of the optical fiber disc from the two axial ends of the optical fiber disc to abut against the two ends of the optical fiber disc through clamping blocks; fourthly, starting a lifting motor, and driving a lifting block to lift by the lifting motor so as to lift the optical fiber disc to reach a position with a set height; fifthly, the two threaded rods are driven to rotate by the double-head motor, the two support frames are driven to be separated by the threaded rods, so that the horizontal lifting rod is pulled out from the optical fiber disc, a vertical cylinder body is arranged on the supporting frame in the first step, a vertical cylinder piston is connected in the vertical cylinder body in a sealing and sliding way, the vertical cylinder piston is isolated in the vertical cylinder body to form an upper air cavity, the lifting block is connected with the vertical cylinder piston through a vertical connecting rod, an air chamber is arranged in the part of the horizontal lifting rod, which is positioned at one side of the clamping block far away from the supporting frame, the air chamber is communicated with the upper air cavity, the air chamber is provided with at least two lifting rod part sliding holes which are distributed along the circumferential direction of the horizontal lifting rod and extend in the radial direction, the lifting rod part is connected with a puller pin in a sealing and sliding way in the sliding hole, the inner end of the puller pin is provided with a puller pin return spring which drives the puller pin to contract towards the inside of the air chamber, the upper air cavity is provided with a pressure limiting valve opened towards the outside of the upper air cavity and a one-way valve opened towards the inside of the upper air cavity; in the fourth step, when the lifting block rises, the vertical connecting rod drives the vertical cylinder piston to rise so as to drive the gas in the upper gas cavity to flow to the gas chamber, so that the gas pressure in the gas chamber rises, and when the gas pressure in the gas chamber rises, the jacking pin is driven to extend out and be jacked on the peripheral surface of the central hole of the optical fiber disc, so that the optical fiber disc is prevented from moving relative to the horizontal lifting rod; when the air pressure in the air chamber exceeds a set value and the lifting block continues to rise to drive the air pressure in the air chamber to continue to rise, the pressure is released through the pressure limiting valve to prevent the overload of the lifting motor; the optical fiber disc is lifted to a position higher than a set height position and then is lowered to the set height position, so that the pressure in the air chamber is lower than the air pressure in the lifting stage of the lifting block, the jacking head is enabled to retract, the horizontal lifting rod in the fifth step can be smoothly pulled out of the optical fiber disc, the piston of the vertical cylinder part is isolated in the vertical cylinder part to form a buffer air chamber of a sealing structure below the piston of the vertical cylinder part in the first step, and air is filled in the buffer air chamber, so that the vertical cylinder part is suspended on the lifting block when the lifting block falls, and rigid impact between the piston of the vertical cylinder part and the vertical cylinder body is avoided.
2. The method of claim 1, wherein in the first step, a vertical rod air passage is further provided in the vertical rod, and a horizontal rod air passage is provided in the horizontal rod; and fourthly, the air in the upper air cavity and the air chamber is communicated by butting the air passage of the vertical connecting rod part and the air passage of the horizontal lifting rod part.
3. The method for clamping and lifting the integrally movable clamping-type optical fiber disc according to claim 1 or 2, wherein in the first step, a first correlation type photoelectric switch is arranged between the two support frames, a second correlation type photoelectric switch is arranged between the horizontal lifting rods of the two support frames, the number of the second correlation type photoelectric switches is two, the two second correlation type photoelectric switches are arranged on the two tightening heads in a one-to-one correspondence manner, and the two tightening heads provided with the second correlation type photoelectric switches are uniformly distributed along the circumferential direction of the horizontal lifting rods; in the third step, when the first correlation photoelectric switch is shielded and the second correlation photoelectric switch is not shielded, the control unit first starts the double-head motor to insert the horizontal lifting rod into the optical fiber disc, and then starts the lifting motor to lift the optical fiber disc.
4. The method as claimed in claim 1 or 2, wherein an end wall is provided at a lower end of the sliding groove in the first step, and a damping spring is provided on the end wall to extend and retract in an up-down direction, so that the damping spring damps the lifting block when the lifting block falls.
5. The method for clamping and lifting the integrally moving clamping type optical fiber disc as claimed in claim 1 or 2, wherein in the first step, a wire spool is further arranged on the supporting frame, and the wire spool is connected with the lifting block through a pull rope; and in the fourth step, the wire spool is driven by the lifting motor to rotate, so that the lifting block is pulled through the inhaul cable, and the lifting of the lifting block is realized.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408237.8A CN109534197B (en) | 2018-11-23 | 2018-11-23 | Clamping and lifting method for integrally moving clamping type optical fiber disc |
| CN202010370302.3A CN111392624B (en) | 2018-11-23 | 2018-11-23 | Clamping and lifting method for integrally moving clamping type optical fiber disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811408237.8A CN109534197B (en) | 2018-11-23 | 2018-11-23 | Clamping and lifting method for integrally moving clamping type optical fiber disc |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202010370302.3A Division CN111392624B (en) | 2018-11-23 | 2018-11-23 | Clamping and lifting method for integrally moving clamping type optical fiber disc |
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| Publication Number | Publication Date |
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| CN109534197A CN109534197A (en) | 2019-03-29 |
| CN109534197B true CN109534197B (en) | 2020-06-05 |
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| CN202010370302.3A Active CN111392624B (en) | 2018-11-23 | 2018-11-23 | Clamping and lifting method for integrally moving clamping type optical fiber disc |
| CN201811408237.8A Active CN109534197B (en) | 2018-11-23 | 2018-11-23 | Clamping and lifting method for integrally moving clamping type optical fiber disc |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010370302.3A Active CN111392624B (en) | 2018-11-23 | 2018-11-23 | Clamping and lifting method for integrally moving clamping type optical fiber disc |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2801584Y (en) * | 2005-06-20 | 2006-08-02 | 宁昉 | Hydraulic lifting conveger cart |
| US9315364B2 (en) * | 2013-03-08 | 2016-04-19 | Warn Industries, Inc. | Remote winch clutch system |
| CN104876156A (en) * | 2015-04-30 | 2015-09-02 | 吴贤文 | Adjustable hydraulic lifting platform device |
| CN204802753U (en) * | 2015-06-10 | 2015-11-25 | 张洁 | Interval adjustable cable winding device |
| CN106744497A (en) * | 2016-12-23 | 2017-05-31 | 北京首钢国际工程技术有限公司 | Walking beam furnace walking machinery air pressure balance method |
| CN108529323A (en) * | 2018-03-28 | 2018-09-14 | 绍兴柯桥永豪纺织有限公司 | A kind of adaptable textile winding device |
| CN108519323B (en) * | 2018-04-23 | 2020-12-29 | 南昌工程学院 | Anti-attenuation aging detection device for luminescent material |
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| Publication number | Publication date |
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| CN109534197A (en) | 2019-03-29 |
| CN111392624A (en) | 2020-07-10 |
| CN111392624B (en) | 2021-05-07 |
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