CN210528357U - Lead screw lifting device for induction zinc pot - Google Patents
Lead screw lifting device for induction zinc pot Download PDFInfo
- Publication number
- CN210528357U CN210528357U CN201921157700.6U CN201921157700U CN210528357U CN 210528357 U CN210528357 U CN 210528357U CN 201921157700 U CN201921157700 U CN 201921157700U CN 210528357 U CN210528357 U CN 210528357U
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- screw rod
- lead screw
- lifting
- spiral
- swing arm
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000011701 zinc Substances 0.000 title claims abstract description 45
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 45
- 230000006698 induction Effects 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 230000009467 reduction Effects 0.000 claims abstract description 58
- 230000003028 elevating effect Effects 0.000 claims abstract description 8
- 230000004044 response Effects 0.000 claims abstract description 7
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 7
- 238000005097 cold rolling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Types And Forms Of Lifts (AREA)
Abstract
The utility model discloses a lead screw lifting device for an induction zinc pot, which comprises a lifting platform, a lifting guide mechanism, a lead screw lifting mechanism, a base and a controller, wherein the lifting platform is horizontally arranged; the lifting guide mechanism comprises a pair of guide rails, each guide rail is vertically arranged and is parallel to each other, and each guide rail is provided with a radial guide wheel which slides up and down along the guide rail; the screw rod lifting mechanism is arranged below the lifting platform and comprises a motor, three reduction boxes, four spiral screw rod lifters and an anti-reversal mechanism; the base comprises a motor base, two reduction gearbox bases and four screw rod elevator bases; and each screw rod elevator base is provided with a supporting upright post and a swing arm mechanism. The utility model discloses a lead screw hoisting device for response zinc pot, it can realize that lift platform's elevating movement is steady, prevents to operate the in-process induction zinc pot and tumbles.
Description
Technical Field
The utility model relates to a lead screw hoisting device for response zinc pot relates to cold rolling hot dip coating equipment field.
Background
In recent years, with the diversification of product types in the domestic cold-rolled sheet industry, one cold rolling line only needs to be used as one product, which cannot meet the requirement of market diversification, and the product types need to be replaced under different market conditions, so that two or more induction zinc pots need to be installed on the cold rolling line, a system is needed for switching the induction zinc pots, and a lifting device is an important component of the induction zinc pots. The lifting device has to adapt to large load, and the whole induction zinc pot is in the order of hundreds of tons; the requirement on stability is high, and the running process is slow and stable; the synchronism is good; safe and reliable, it is convenient to maintain. Depending on these performance requirements, the use of a spiral screw elevator can perform this task well.
The difficulty of development of the screw rod lifting device for the induction zinc pot is as follows: a. the lifting stroke is large; b. the screw rod nut is easy to wear; c. the requirement on the straightness is high when the screw rod moves linearly; d. and a plurality of screw rods run synchronously.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's defect, providing an induction is lead screw hoisting device for zinc pot, its elevating movement that can realize lift platform is steady, prevents to operate the in-process induction zinc pot and tumbles.
The technical scheme for realizing the purpose is as follows: the utility model provides a lead screw hoisting device for response zinc pot, includes lift platform, lift guiding mechanism, lead screw elevating system, base and controller, wherein:
the lifting platform is horizontally arranged;
the lifting guide mechanism comprises a pair of guide rails, each guide rail is vertically arranged and is parallel to each other, each guide rail is provided with a radial guide wheel which slides up and down along the guide rail, and the radial guide wheels on the pair of guide rails are fixed with the two ends of one side of the lifting platform in a one-to-one correspondence manner;
the screw rod lifting mechanism is arranged below the lifting platform and comprises a motor, three reduction boxes, four spiral screw rod lifters and an anti-reversal mechanism; the four spiral screw rod lifters are arranged at the bottom ends of four corners of the lifting platform; the motors are arranged in the middle of the four spiral screw rod lifters; the three reduction boxes are respectively a first reduction box, a second reduction box and a third reduction box, the input end of the first reduction box is connected with the output shaft of the motor through a rigid coupling, the two output ends of the first reduction box are correspondingly connected with the input end of the second reduction box and the input end of the third reduction box one by one through universal couplings, the two output ends of the second reduction box are correspondingly connected with the two spiral screw rod lifters one by one through universal couplings, and the two output ends of the third reduction box are correspondingly connected with the other two spiral screw rod lifters one by one through universal couplings; the anti-reverse mechanism is a rectangular frame, and four corners of the anti-reverse mechanism are connected with the four spiral screw rod elevators in a one-to-one correspondence manner;
the base comprises a motor base, two reduction gearbox bases and four screw rod elevator bases; the motor and the first reduction gearbox are respectively arranged on the motor base, the second reduction gearbox and the third reduction gearbox are correspondingly arranged on the two reduction gearbox bases one by one, and the four spiral screw rod elevators are correspondingly arranged on the four spiral screw rod elevator bases one by one;
each screw rod elevator base is provided with a supporting upright post and a swing arm mechanism; the swing arm mechanism comprises a swing arm screw rod, a turnover stand column and a bracket; one end of the swing arm screw rod is hinged to the spiral screw rod lifter base, the other end of the swing arm screw rod is hinged to the overturning stand column, one end of the overturning stand column is hinged to the supporting stand column, and the overturning stand column is horizontally placed on the bracket; the swing arm lead screw is externally connected with a swing arm lead screw motor;
the controller is respectively connected with the motor and the swing arm screw rod motor.
According to the lead screw lifting device for the induction zinc pot, the top end of each spiral lead screw lifter is fixed with the anti-reverse mechanism through the bolt, and the lead screws of the four spiral lead screw lifters are synchronously linked.
The lead screw lifting device for the induction zinc pot is characterized in that the bottom end of each guide rail is fixed on a foundation.
The screw rod lifting device for the induction zinc pot is characterized in that the second reduction gearbox is located between the two spiral screw rod lifters, and the third reduction gearbox is located between the other two spiral screw rod lifters.
The screw rod lifting device for the induction zinc pot is characterized in that the four screw rod lifter bases are positioned in the same horizontal plane.
The lead screw lifting device for the induction zinc pot is characterized in that the lifting platform is formed by welding steel plates.
The screw rod lifting device for the induction zinc pot is characterized in that the supporting upright column is a steel structure supporting column, and the supporting upright column is connected with the screw rod lifter base into a whole.
The screw rod lifting device for the induction zinc pot is characterized in that the number of the support upright columns arranged on each screw rod lifter base is two, and the two support upright columns are respectively arranged on two sides of the corresponding screw rod lifter; the turning upright posts are connected by two vertical rods and a cross rod to form an H shape; one end of the swing arm screw rod is hinged to the spiral screw rod lifter base, and the other end of the swing arm screw rod is hinged to the cross rod of the turning upright post; one end of each vertical rod of the turning upright post is hinged with the two supporting upright posts in a one-to-one correspondence mode.
The utility model discloses a lead screw lifting device for an induction zinc pot, which comprises a lifting platform and a base, wherein the top surface of the lifting platform is used for placing the induction zinc pot, and the base is horizontally arranged; four screw rod elevator bases are arranged in the base and are positioned on the same plane, and a support upright post and a swing arm mechanism are fixed on the screw rod elevator bases; the four spiral screw rod elevators are connected into a linkage whole by an anti-reverse mechanism; the radial guide wheel of the lifting guide mechanism can slide with the guide rail; the controller can realize the accurate operation of the spiral screw rod lifter and the swing arm mechanism. The technical effects are as follows: the lifting platform is stable in lifting motion, the induction zinc pot is prevented from being tipped in the running process, the screw rod of the screw rod lifter is prevented from reversely rotating and colliding, and the use load of the screw rod lifting mechanism is reduced; the controller is used for accurately controlling, so that the whole induction zinc pot lead screw lifting device can keep stable and accurate operation when not in work, lifting and working.
Drawings
FIG. 1 is a three-dimensional structure diagram of a lead screw lifting device for an induction zinc pot of the present invention;
FIG. 2 is a structural diagram of a controller of the lead screw lifting device for an induction zinc pot of the present invention;
FIG. 3 is a structural diagram of a lead screw lifting mechanism of the lead screw lifting device for the induction zinc pot of the present invention;
fig. 4 is a side view of the screw lifting device for the induction zinc pot of the utility model.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:
referring to fig. 1, 2, 3 and 4, a lead screw lifting device for an induction zinc pot according to a preferred embodiment of the present invention includes a lifting platform 1, a lifting guide mechanism 2, a lead screw lifting mechanism 3, a base 4 and a controller 7.
The lifting platform 1 is horizontally arranged; the lifting platform 1 is formed by welding steel plates, and the top surface of the lifting platform 1 is used for placing an induction zinc pot. The lifting guide mechanism 2 includes a pair of guide rails 22, each guide rail 22 is vertically disposed, the bottom end of each guide rail 22 is fixed on a foundation (such as the ground), the pair of guide rails 22 are parallel to each other, each guide rail 22 is provided with a radial guide wheel 21 (see fig. 4) sliding up and down, and the radial guide wheels 21 on the pair of guide rails 22 are fixed with two ends of one side of the lifting platform 1 in a one-to-one correspondence manner.
Referring to fig. 3, the screw lifting mechanism 3 is disposed below the lifting platform 1, and the screw lifting mechanism 3 includes a motor 31, three reduction boxes, four screw lifters 34, and an anti-reverse mechanism 35; four screw lifters 34 are provided at the bottom ends of the four corners of the lifting platform 1; the motor 31 is arranged in the middle of the four spiral screw lifters 34; the three reduction boxes are respectively a first reduction box 321, a second reduction box 322 and a third reduction box 323, the input end of the first reduction box 321 is connected with the output shaft of the motor 31 through a rigid coupling 36, two output ends of the first reduction box 321 are correspondingly connected with the input end of the second reduction box 322 and the input end of the third reduction box 323 through universal couplings 33 one by one, the second reduction box 322 is positioned between the two spiral screw rod elevators 34, and two output ends of the second reduction box 322 are correspondingly connected with the two corresponding spiral screw rod elevators 34 one by one through the universal couplings 33; the third reduction box 323 is positioned between the other two spiral screw rod lifters 34, and two output ends of the third reduction box 323 are correspondingly connected with the two corresponding spiral screw rod lifters 34 one by one through universal couplings 33; the anti-reverse mechanism 35 is a rectangular frame, and four corners of the anti-reverse mechanism 35 are connected with the top ends of the screw rods of the four screw rod elevators 34 through bolts in a one-to-one correspondence manner, so that the screw rods of the four screw rod elevators 34 are synchronously linked.
The base 4 comprises a motor base 42, two reduction box bases and four screw rod lifter bases 41; the motor 31 and the first reduction gearbox 321 are respectively arranged on the motor base 42, the second reduction gearbox 322 and the third reduction gearbox 323 are correspondingly arranged on the two reduction gearbox bases one by one, and the four screw rod elevators 34 are correspondingly arranged on the four screw rod elevator bases 41 one by one. The four screw rod elevator bases 41 are located in the same horizontal plane, so that the four screw rod elevators 34 are also located in the same plane.
Each screw mandrel lifter base 41 is provided with a supporting upright post 6 and a swing arm mechanism 5; the supporting upright post 6 adopts a steel structure supporting post, and the supporting upright post 6 is connected with the screw rod elevator base 41 into a whole; the swing arm mechanism 5 comprises a swing arm screw rod 51, a turning upright post 52 and a bracket 53; one end of a swing arm screw rod 51 is hinged on the spiral screw rod elevator base 41, the other end is hinged on a turning upright post 52, one end of the turning upright post 52 is hinged with the supporting upright post 6, and the turning upright post 52 is horizontally placed on a bracket 53; the swing arm lead screw 51 is externally connected with a swing arm lead screw motor.
The controller 7 is respectively connected with the motor 31 and the swing arm screw rod motor. The controller 7 is used for completing the action of the screw rod lifting device under various working conditions, and the automatic operation of the screw rod lifting device is realized.
The utility model discloses a lead screw hoisting device for response zinc pot, screw rod lift 34 realize elevating platform 1's vertical linear motion as main executive component, and the drive power that 7 driving motor 31 of controller produced, the moment that transmits screw rod lift 34 via reducing gear box and universal joint 33 utilizes screw rod lift 34's the vice relative motion of turbine worm motion, makes elevating platform 1 up-and-down linear motion. Due to the rotational inertia, four screw lifters 34 are connected by the anti-reverse mechanism 35. The condition of the screw elevator 34 supporting the elevating platform 1 can be eliminated with the participation of the support column 6 or the swing arm mechanism 5. The lifting platform 1 is fixed with a radial guide wheel 21 of the lifting guide mechanism 2, and can slide up and down along a guide rail 22 to play a role in guiding. The screw elevator base 41 is fixed on the screw elevator, and the support column 6 and the swing arm mechanism 5 are fixed on the upper part.
In the process of ascending action, when the lifting platform 1 is placed at the lowest position, the lifting platform 1 is directly placed on the supporting upright post 6, and the screw rod lifting mechanism 3 does not work; during the ascending action, the screw rod lifting mechanism 3 is started, the controller 7 drives the driving force generated by the motor 31, the driving force is transmitted to the torque of the screw rod lifter 34 through the reduction gearbox and the universal coupling 33, the screw rod lifter 34 firstly contacts the lifting platform 1 by utilizing the relative motion of the turbine worm kinematic pair of the screw rod lifter 34, then the lifting platform 1 is pushed to move upwards, and the lifting is stopped when the lifting platform ascends to the designated position; in the process, the lifting guide mechanism 2 ensures that the operation is carried out according to a straight line, and the tipping is prevented. When the lifting platform 1 rises to a certain height, the controller 7 drives the swing arm screw rod motor to drive the swing arm screw rod 51 of the swing arm mechanism 5 to move upwards, so that the overturning upright column 52 is separated from the bracket 53 to do rotary motion and rotate 90 degrees and is arranged on the supporting upright column 6, then the controller 7 controls the reverse motion (downward motion) of the spiral screw rod elevator 34 through the driving force generated by the driving motor 31, so that the lifting platform 1 is contacted and placed on the overturning upright column 52, the screw rod lifting mechanism 3 continues to move downwards a little again and is separated from the lifting platform 1, and the lifting platform 1 is positioned at a working position at the moment.
In the descending process, if the lifting platform 1 is not supported by the overturning upright column 52 of the swing arm mechanism 5, the controller 7 controls and drives the screw rod lifter 34 to move downwards through the driving force generated by the driving motor 31, when the lifting platform 1 reaches the upper surface of the supporting upright column 6, the lifting platform 1 stops moving, and then the screw rod lifter 34 can continue to move downwards to be separated from the lifting platform 1; if the turning upright column 52 supports the lifting platform 1 at a high position, the controller 7 needs to move the screw rod lifter 34 upwards through the driving motor 31 to push the lifting platform 1 to a certain height, so that the swing arm mechanism 5 can perform reverse rotation motion, the turning upright column 52 is put back on the bracket 53, then the screw rod lifting mechanism 3 moves downwards, and the screw rod lifting mechanism 3 stops after being placed on the supporting upright column 6, and continues to descend to be separated from the lifting platform 1.
During further optimization, the number of the support columns 6 arranged on each screw rod elevator base 41 is two, and the two support columns 6 are respectively arranged on two sides of the corresponding screw rod elevator 34; the turning upright column 52 is connected by two vertical rods and a cross rod to form an H shape; one end of a swing arm screw rod 51 is hinged on the spiral screw rod elevator base 41, and the other end is hinged on a cross rod of the turning upright post 52; one end of each of the two vertical bars of the turning upright 52 is hinged with the two supporting uprights 6 in a one-to-one correspondence. Like this, swing arm lead screw motor drive swing arm lead screw 51 upward movement, and then drive two montants of whole upset stand 52 and arrange in two support posts 6 on one-to-one, increase and lift platform 1 contact surface for lift platform 1 is more firm.
The utility model discloses a lead screw hoisting device for response zinc pot can realize the steady elevating movement of the vertical direction of the response zinc pot of large-tonnage to utilize swing arm mechanism 5 and support post 5 to take the rigidity to support the lead screw in order to realize uninstallation spiral screw rod lift 34 respectively when high-order and low level, reduce the load time of spiral screw rod lift 34 of screw mechanism 3, increase life. In the process of linear motion of the lifting platform, the lifting guide mechanism 2 ensures that the lifting platform 1 keeps linear motion without direction deviation and prevents overturning by utilizing the interaction of the radial guide wheel 21 and the guide rail 22 when the lifting platform moves; the screw lifting mechanism 3 drives the motor 31 under the control of the controller 7, drives the screw lifters 34 to support the horizontally placed lifting platform 1 to perform vertical linear motion through a reduction box, a universal coupling and the like, the four screw lifters 34 support the bottom surface of the lifting platform, and in order to achieve the synchronization of the four screw lifters 34 and the stability of the lifting platform, the four screw lifters 34 are connected together by using a frame-type anti-reverse mechanism 35 to perform synchronous motion; the base 4 supports and fixes the screw rod lifting mechanism 3, the swing arm mechanism 5, the support upright post 6 and the like, so as to ensure the stability of the equipment; the swing arm mechanism 5 and the support upright 6 respectively replace the screw rod lifting mechanism 3 to support the lifting platform 1 when the equipment runs to a working position (high position) and a parking space (low position), so that the screw rod lifting mechanism unloads loads, protects the system and prolongs the service life of the system; wherein, the swing arm mechanism 5 drives a swing arm screw rod to do rotary motion by utilizing a controller at a working position, lifts the turnover upright post 52 and supports the lifting platform 1; the support upright 6 directly carries the lifting platform 1 in the parking space.
To sum up, the lead screw lifting device for the induction zinc pot realizes stable lifting motion of the lifting platform, prevents the induction zinc pot from tipping in the operation process, prevents lead screw reverse collision of the spiral lead screw lifter, and reduces the use load of the lead screw lifting mechanism; the controller is used for accurately controlling, so that the whole induction zinc pot lead screw lifting device can keep stable and accurate operation when not in work, lifting and working.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (8)
1. The utility model provides a lead screw hoisting device for response zinc pot which characterized in that, includes lift platform, lift guiding mechanism, lead screw elevating system, base and controller, wherein:
the lifting platform is horizontally arranged;
the lifting guide mechanism comprises a pair of guide rails, each guide rail is vertically arranged and is parallel to each other, each guide rail is provided with a radial guide wheel which slides up and down along the guide rail, and the radial guide wheels on the pair of guide rails are fixed with the two ends of one side of the lifting platform in a one-to-one correspondence manner;
the screw rod lifting mechanism is arranged below the lifting platform and comprises a motor, three reduction boxes, four spiral screw rod lifters and an anti-reversal mechanism; the four spiral screw rod lifters are arranged at the bottom ends of four corners of the lifting platform; the motors are arranged in the middle of the four spiral screw rod lifters; the three reduction boxes are respectively a first reduction box, a second reduction box and a third reduction box, the input end of the first reduction box is connected with the output shaft of the motor through a rigid coupling, the two output ends of the first reduction box are correspondingly connected with the input end of the second reduction box and the input end of the third reduction box one by one through universal couplings, the two output ends of the second reduction box are correspondingly connected with the two spiral screw rod lifters one by one through universal couplings, and the two output ends of the third reduction box are correspondingly connected with the other two spiral screw rod lifters one by one through universal couplings; the anti-reverse mechanism is a rectangular frame, and four corners of the anti-reverse mechanism are connected with the four spiral screw rod elevators in a one-to-one correspondence manner;
the base comprises a motor base, two reduction gearbox bases and four screw rod elevator bases; the motor and the first reduction gearbox are respectively arranged on the motor base, the second reduction gearbox and the third reduction gearbox are correspondingly arranged on the two reduction gearbox bases one by one, and the four spiral screw rod elevators are correspondingly arranged on the four spiral screw rod elevator bases one by one;
each screw rod elevator base is provided with a supporting upright post and a swing arm mechanism; the swing arm mechanism comprises a swing arm screw rod, a turnover stand column and a bracket; one end of the swing arm screw rod is hinged to the spiral screw rod lifter base, the other end of the swing arm screw rod is hinged to the overturning stand column, one end of the overturning stand column is hinged to the supporting stand column, and the overturning stand column is horizontally placed on the bracket; the swing arm lead screw is externally connected with a swing arm lead screw motor;
the controller is respectively connected with the motor and the swing arm screw rod motor.
2. The lead screw lifting device for the induction zinc pot according to claim 1, wherein the top end of each spiral lead screw lifter is fixed with the anti-reverse mechanism through a bolt, and lead screws of the four spiral lead screw lifters are synchronously linked.
3. The lead screw lifting device for the induction zinc pot according to claim 1, wherein the bottom end of each guide rail is fixed on a foundation.
4. The screw rod lifting device for the induction zinc pot according to claim 1, wherein the second reduction gearbox is positioned between two screw rod lifters, and the third reduction gearbox is positioned between the other two screw rod lifters.
5. The lead screw lifting device for the induction zinc pot according to claim 1, wherein the four spiral lead screw lifter bases are positioned in the same horizontal plane.
6. The lead screw lifting device for the induction zinc pot according to claim 1, wherein the lifting platform is formed by welding steel plates.
7. The lead screw lifting device for the induction zinc pot according to claim 1, wherein the supporting column is a steel structure supporting column, and the supporting column is connected with the spiral lead screw lifter base into a whole.
8. The lead screw lifting device for the induction zinc pot according to claim 1, wherein the number of the supporting columns arranged on each spiral lead screw lifter base is two, and the two supporting columns are respectively arranged on two sides of the corresponding spiral lead screw lifter; the turning upright posts are connected by two vertical rods and a cross rod to form an H shape; one end of the swing arm screw rod is hinged to the spiral screw rod lifter base, and the other end of the swing arm screw rod is hinged to the cross rod of the turning upright post; one end of each vertical rod of the turning upright post is hinged with the two supporting upright posts in a one-to-one correspondence mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157700.6U CN210528357U (en) | 2019-07-23 | 2019-07-23 | Lead screw lifting device for induction zinc pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157700.6U CN210528357U (en) | 2019-07-23 | 2019-07-23 | Lead screw lifting device for induction zinc pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210528357U true CN210528357U (en) | 2020-05-15 |
Family
ID=70598648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921157700.6U Active CN210528357U (en) | 2019-07-23 | 2019-07-23 | Lead screw lifting device for induction zinc pot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210528357U (en) |
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2019
- 2019-07-23 CN CN201921157700.6U patent/CN210528357U/en active Active
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