CN111021316A - Hydraulic hoist for safety steel gate and control method thereof - Google Patents
Hydraulic hoist for safety steel gate and control method thereof Download PDFInfo
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- CN111021316A CN111021316A CN201911385606.0A CN201911385606A CN111021316A CN 111021316 A CN111021316 A CN 111021316A CN 201911385606 A CN201911385606 A CN 201911385606A CN 111021316 A CN111021316 A CN 111021316A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
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- E02B7/40—Swinging or turning gates
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Abstract
The invention relates to a hydraulic hoist for a safety steel gate and a control method thereof, belonging to the technical field of water conservancy and hydropower gate engineering infrastructure. The invention has simple and reasonable structure and easy production and manufacture, and the crank arm is firmly locked, safe and reliable through the matching of the special-shaped hole, the special-shaped block, the large gear ring and the follow-up pinion and the dual locking guarantee; the hydraulic telescopic rod is matched with the telescopic gate structure, so that the hydraulic telescopic rod is suitable for small-scale farmland water conservancy and large-scale reservoirs; the piston rod of the driving oil cylinder is locked and firmly locked through the matching of the upper locking hydraulic cylinder and the lower locking hydraulic cylinder, and the braking is safe and reliable.
Description
Technical Field
The invention relates to a hydraulic hoist for a safety steel gate and a control method thereof, belonging to the technical field of water conservancy and hydropower gate engineering infrastructure.
Background
Steel gate or steel dam gate or bottom cross axle upset gate among water conservancy gate, this type of steel gate is owing to possess multiple advantage, like adaptable wide river course, simple structure, can reduce middle gate pier, can close the floodgate retaining, can open the floodgate and carry out flood drainage, can also the floodgate top water of crossing, form the view effect of artificial waterfall to can freely adjust the height of blocking water, receive all sides good comment.
The hydraulic hoist that current cooperation steel gate used generally includes drive cylinder, turning arm and bottom shaft hinged support, and turning arm bottom, steel gate bottom are connected with the bottom shaft hinged support through the bottom shaft respectively, and drive cylinder's piston rod top is articulated with the turning arm top, passes through the piston rod by drive cylinder and drives the turning arm rotation, makes steel gate change angular position, blocks the water height then.
The gate moves to the required water blocking height, and can reliably stay at the required position for a long time under the condition of cutting off power, although the driving oil cylinder can be locked by elements such as a hydraulic lock, the hydraulic locking is unreliable after the power source is cut off due to the influence of leakage inside and outside the oil cylinder, and other locking schemes must be adopted to prevent the water from getting into the bud, so that the water blocking device has important practical and engineering practical significance.
In addition, the requirements of a large number of water retaining and discharging buildings required in the small-scale farmland water conservancy infrastructure project and buildings such as dams and gates applied to large-scale reservoirs are greatly different. Although the water blocking height can be changed by changing the angle of the steel gate, the water blocking device is not suitable for small-sized farmland water conservancy and large-sized reservoirs at the same time.
Disclosure of Invention
The invention aims to provide a hydraulic hoist for a safety steel gate and a control method thereof, aiming at the defects of the prior art.
The invention provides a hydraulic hoist for a safety steel gate, which comprises a driving oil cylinder, a steel gate, a crank arm and a bottom shaft hinged support positioned in a hoist chamber, wherein the bottom of the crank arm and the bottom of the steel gate are respectively connected with the bottom shaft hinged support through a bottom shaft, and the top of a piston rod of the driving oil cylinder is hinged with the top of the crank arm;
the locking mechanism is arranged in the hoist chamber and comprises a follow-up pinion, a large gear ring, a fixed mounting plate, a servo motor and a locking oil cylinder; the fixed mounting plate is vertically fixed at the bottom of the opening and closing chamber, a through hole is formed in the middle of the fixed mounting plate, the large gear ring is annular, teeth meshed with the follow-up pinion are arranged on the inner side wall of the large gear ring, a circular plate matched with the annular structure is fixedly arranged on one end face of the large gear ring, and a locking connecting block is arranged in the center of the circular plate;
the locking connecting block extends outwards, the outline of the outer wall of the locking connecting block is circular and is rotationally connected with the inner wall of the through hole of the fixed mounting plate, the center of the locking connecting block is provided with a locking through hole, and the locking through hole is a special-shaped hole; the servo motor is fixed on a piston rod of the locking oil cylinder, and a special-shaped block matched with the special-shaped hole is fixed on an output shaft of the servo motor;
the driving oil cylinder enables the crank arm to be at a required angle through a piston rod of the driving oil cylinder, the servo motor enables the special-shaped block to rotate to a proper position, the locking oil cylinder drives the special-shaped block to extend into the special-shaped hole, and the crank arm is locked through the matching of the special-shaped hole, the special-shaped block, the large gear ring and the follow-up pinion;
the outer surface of a piston rod of the driving oil cylinder is provided with a ceramic wear-resistant layer; a piston rod of the driving oil cylinder is provided with a braking device, the braking device comprises an arched support, an upper locking hydraulic cylinder and a lower locking hydraulic cylinder, and the arched support is vertically fixed in the hoist chamber; an upper piston rod of the upper locking hydraulic cylinder and a lower piston rod of the lower locking hydraulic cylinder are oppositely arranged and are respectively positioned at the upper side and the lower side of a piston rod of the driving oil cylinder, and an upper locking block and a lower locking block are respectively arranged at the end parts of the upper piston rod and the lower piston rod; the upper locking hydraulic cylinder and the lower locking hydraulic cylinder simultaneously drive the upper piston rod and the lower piston rod to move oppositely, so that the upper locking block and the lower locking block are matched to lock the piston rod of the driving oil cylinder.
Further, a piston rod supporting seat of a driving oil cylinder is arranged in the hoist chamber, and a supporting shell is arranged at the top of the piston rod supporting seat; the piston rod of the driving oil cylinder is arranged at a position close to the steel gate, a protective sleeve is sleeved on the outer side of the piston rod of the driving oil cylinder, and the protective sleeve of the piston rod of the driving oil cylinder penetrates through the inner cavity of the supporting shell; the protective sheath outer wall axial is equipped with a plurality of spouts, the inner chamber wall axial of support housing is equipped with a plurality of slide rails, slide rail and spout one-to-one and sliding fit.
Furthermore, the upper holding block and the lower holding block are respectively in a semicircular arc shape matched with the piston rod of the driving oil cylinder at the contact part of the upper holding block and the piston rod of the driving oil cylinder, and rubber cushion layers are arranged on the surfaces of the semicircular arc shapes.
Furthermore, the steel gate is a telescopic gate formed by a plurality of telescopic sub-gates, each sub-gate is provided with a cavity, and the tops of all the lower sub-gates are provided with outlets through which the corresponding upper sub-gates penetrate; a plurality of hydraulic telescopic rods are installed in the cavities of the sub-gates at the lowest layer, the number of the hydraulic telescopic rods is the same as that of all the sub-gates at the upper layer, the hydraulic telescopic rods are in one-to-one correspondence, and the hydraulic telescopic rods are respectively used for lifting corresponding to the sub-gates at the upper layer.
Furthermore, the two sides of the bottom of each upper-layer sub-gate are respectively provided with an extension block, and the extension blocks are respectively matched with the tops of the corresponding lower-layer sub-gate cavities to limit the upper-layer sub-gates to slide out of the lower-layer sub-gate cavities.
Furthermore, water level sensors are respectively arranged at the tops of all the lower-layer sub-gates, the tops of the cavities of all the lower-layer sub-gates are respectively provided with a travel switch, and the travel switches correspond to the positions of the extending blocks of the upper-layer sub-gates in the corresponding cavities.
Furthermore, an angle sensor is arranged on the large gear ring.
Furthermore, the hoist is provided with a PLC controller, the water level sensor, the angle sensor and the travel switch are respectively in signal connection with the PLC controller, and the PLC controller is respectively in control connection with the driving oil cylinder, the servo motor, the locking oil cylinder, the upper locking hydraulic cylinder, the lower locking hydraulic cylinder and the hydraulic telescopic rod.
The second purpose of the invention is to provide a control method of a hydraulic hoist for a safety steel gate, which is characterized by comprising the following steps:
1) locking a crank arm: the driving oil cylinder enables the crank arm to be at a required angle through a piston rod of the driving oil cylinder; in the rotation process of the crank arm, the follow-up pinion drives the large gear ring to rotate relative to the fixed mounting plate, and the special-shaped hole is not contacted with the special-shaped block; after the crank arm reaches a required position, the crank arm stops rotating, meanwhile, an angle sensor on the large gear ring transmits position information to a PLC (programmable logic controller), the PLC controls a servo motor to enable a special-shaped block to rotate to a proper angle, the PLC controls a locking oil cylinder to drive the special-shaped block to extend into a special-shaped hole, and the crank arm is locked through the matching of the special-shaped hole, the special-shaped block, the large gear ring and a follow-up pinion;
2) driving a piston rod of the oil cylinder to brake: the driving oil cylinder enables the connecting lever to be at a required angle through a piston rod, an upper locking hydraulic cylinder and a lower locking hydraulic cylinder of the hoist chamber work, the upper piston rod and the lower piston rod are driven to move in opposite directions, the upper locking block and the lower locking block are matched, the piston rod of the driving oil cylinder is locked, and the rubber cushion layer can play a role in buffering the piston rod.
3) The gate stretches out and draws back: when the water level rises and water retaining is needed, if a water level sensor at the top of a certain lower-layer sub-gate feels a set water level value, a signal is transmitted to the PLC controller, the PLC controller controls the sub-gate in the cavity of the lower-layer sub-gate to rise through the hydraulic telescopic rod, and when the extension block of the sub-gate triggers the corresponding travel switch, the PLC controller controls the hydraulic telescopic rod to stop rising.
According to the invention, the ceramic piston rod of the driving oil cylinder is supported by the supporting seat, and the piston rod of the driving oil cylinder is in sliding fit with the supporting shell through the protective sleeve in the sliding process, so that the work is not influenced; if the piston rod of the driving oil cylinder stops working, the supporting seat can disperse the stress borne by the supporting seat, and the service life of the supporting seat is prolonged.
The invention has simple and reasonable structure and easy production and manufacture, and the crank arm is firmly locked, safe and reliable through the matching of the special-shaped hole, the special-shaped block, the large gear ring and the follow-up pinion and the dual locking guarantee; the hydraulic telescopic rod is matched with the telescopic gate structure, so that the hydraulic telescopic rod is suitable for small-scale farmland water conservancy and large-scale reservoirs; the piston rod of the driving oil cylinder is locked and firmly locked through the matching of the upper locking hydraulic cylinder and the lower locking hydraulic cylinder, and the braking is safe and reliable.
Drawings
FIG. 1 is a control flow diagram of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of a locking mechanism of the present invention;
FIG. 4 is a schematic view showing the relationship between the follower pinion and the bull gear in the present invention;
FIG. 5 is a schematic structural view of the braking device of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a schematic diagram showing the relationship between an upper locking hydraulic cylinder and a lower locking hydraulic cylinder in the present invention;
FIG. 8 is a schematic view of a retractable gate according to the present invention.
Detailed Description
As shown in the figure, a hydraulic hoist for safe type steel gate, includes actuating cylinder 1, steel gate 2, turning arm 3 and is located the bottom shaft free bearing 5 of headstock gear 4, turning arm bottom, steel gate bottom are connected with the bottom shaft free bearing through the bottom shaft respectively, 6 tops of actuating cylinder's piston rod are articulated with the turning arm top, the indoor locking mechanical system 7 that is equipped with of headstock gear.
Specifically, the locking mechanism comprises a follow-up pinion 8, a large gear ring 9, a fixed mounting plate 10, a servo motor 11 and a locking oil cylinder 12; the fixed mounting plate is vertically fixed at the bottom of the opening and closing chamber, a through hole 13 is formed in the middle of the fixed mounting plate, the large gear ring is annular, teeth meshed with the follow-up pinion are arranged on the inner side wall of the large gear ring, a circular plate 14 matched with the annular structure is fixedly arranged on one end face of the large gear ring, and a locking connecting block 15 is arranged in the center of the circular plate.
The locking connecting block extends outwards, the outline of the outer wall of the locking connecting block is circular and is rotationally connected with the inner wall of the through hole of the fixed mounting plate, the center of the locking connecting block is provided with a locking through hole 16, and the locking through hole is a special-shaped hole; the servo pinion is arranged on the crank arm, the servo motor is fixed on a piston rod 17 of the locking oil cylinder, and a special-shaped block 18 matched with the special-shaped hole is fixed on an output shaft of the servo motor.
The special-shaped block is formed by connecting a cylindrical block and a rectangular block on the outer wall of the cylindrical block, and the special-shaped hole is matched with the outer contour of the special-shaped block. The hoist is provided with a PLC controller, and the PLC controller is in control connection with the driving oil cylinder, the locking oil cylinder and the servo motor. And the large gear ring is provided with an angle sensor and is in signal connection with the PLC. The diameter of the follow-up pinion is smaller than the radius of the large gear ring. The locking oil cylinder is fixed at the bottom of the hoist chamber through a locking oil cylinder support.
The outer surface of a piston rod of the driving oil cylinder is provided with a ceramic wear-resistant layer; a piston rod of the driving oil cylinder is provided with a braking device, the braking device comprises an arched support 19, an upper locking hydraulic cylinder 20 and a lower locking hydraulic cylinder 21, and the arched support is vertically fixed in the hoist chamber; the upper piston rod of the upper locking hydraulic cylinder and the lower piston rod of the lower locking hydraulic cylinder are oppositely arranged and are respectively positioned at the upper side and the lower side of the piston rod of the driving oil cylinder, and the end parts of the upper piston rod and the lower piston rod are respectively provided with an upper locking block 22 and a lower locking block 23; the upper locking hydraulic cylinder and the lower locking hydraulic cylinder simultaneously drive the upper piston rod and the lower piston rod to move oppositely, so that the upper locking block and the lower locking block are matched to lock the piston rod of the driving oil cylinder. The upper blocking block and the lower blocking block are respectively in a semicircular arc shape matched with the piston rod of the driving oil cylinder at the contact part with the piston rod of the driving oil cylinder, and rubber cushion layers are arranged on the surfaces of the semicircular arc shapes.
A piston rod supporting seat 24 of a driving oil cylinder is arranged in the hoist chamber, and a supporting shell 25 is arranged at the top of the piston rod supporting seat; the piston rod of the driving oil cylinder is arranged at a position close to the steel gate, a protective sleeve 26 is sleeved on the outer side of the piston rod of the driving oil cylinder, and the protective sleeve of the piston rod of the driving oil cylinder penetrates through the inner cavity of the supporting shell; the protective sheath outer wall axial is equipped with a plurality of spouts, the inner chamber wall axial of support housing is equipped with a plurality of slide rails, slide rail and spout one-to-one and sliding fit.
The steel gate is a telescopic gate formed by a plurality of sub-gates 27 which are connected in a telescopic mode, each sub-gate is provided with a cavity, and the tops of all the lower sub-gates are provided with outlets through which the corresponding upper sub-gates penetrate; and a plurality of hydraulic telescopic rods 28 are arranged in the cavities of the lowermost sub-gates, the number of the hydraulic telescopic rods is the same as that of all the upper sub-gates, and the hydraulic telescopic rods are in one-to-one correspondence and are respectively used for lifting the corresponding upper sub-gates.
And the two sides of the bottom of each upper-layer sub-gate are respectively provided with an extension block 29, and the extension blocks are respectively matched with the tops of the cavities of the corresponding lower-layer sub-gates to limit the positions so as to prevent the upper-layer sub-gates from sliding out of the cavities of the lower-layer sub-gates.
The top parts of all the lower-layer sub-gates are respectively provided with a water level sensor 30, the top parts of the cavities of all the lower-layer sub-gates are respectively provided with a travel switch 31, and the travel switches correspond to the extending blocks of the upper-layer sub-gates in the corresponding cavities in position.
The hoist is provided with a PLC controller, the water level sensor, the angle sensor and the travel switch are respectively in signal connection with the PLC controller, and the PLC controller is respectively in control connection with the driving oil cylinder, the servo motor, the locking oil cylinder, the upper locking hydraulic cylinder, the lower locking hydraulic cylinder and the hydraulic telescopic rod.
A control method of a hydraulic hoist for a safety steel gate is characterized by comprising the following steps:
1) locking a crank arm: the driving oil cylinder enables the crank arm to be at a required angle through a piston rod of the driving oil cylinder; in the rotation process of the crank arm, the follow-up pinion drives the large gear ring to rotate relative to the fixed mounting plate, and the special-shaped hole is not contacted with the special-shaped block; after the crank arm reaches a required position, the crank arm stops rotating, meanwhile, an angle sensor on the large gear ring transmits position information to a PLC (programmable logic controller), the PLC controls a servo motor to enable a special-shaped block to rotate to a proper angle, the PLC controls a locking oil cylinder to drive the special-shaped block to extend into a special-shaped hole, and the crank arm is locked through the matching of the special-shaped hole, the special-shaped block, the large gear ring and a follow-up pinion;
2) driving a piston rod of the oil cylinder to brake: the driving oil cylinder enables the connecting lever to be at a required angle through a piston rod, an upper locking hydraulic cylinder and a lower locking hydraulic cylinder of the hoist chamber work, the upper piston rod and the lower piston rod are driven to move in opposite directions, the upper locking block and the lower locking block are matched, the piston rod of the driving oil cylinder is locked, and the rubber cushion layer can play a role in buffering the piston rod.
3) The gate stretches out and draws back: when the water level rises and water retaining is needed, if a water level sensor at the top of a certain lower-layer sub-gate feels a set water level value, a signal is transmitted to the PLC controller, the PLC controller controls the sub-gate in the cavity of the lower-layer sub-gate to rise through the hydraulic telescopic rod, and when the extension block of the sub-gate triggers the corresponding travel switch, the PLC controller controls the hydraulic telescopic rod to stop rising.
Claims (9)
1. A hydraulic hoist for a safety steel gate comprises a driving oil cylinder (1), a steel gate (2), a crank arm (3) and a bottom shaft hinged support (5) positioned in a hoist chamber (4), wherein the bottom of the crank arm and the bottom of the steel gate are respectively connected with the bottom shaft hinged support through a bottom shaft, and the top of a piston rod (6) of the driving oil cylinder is hinged with the top of the crank arm;
the locking mechanism is characterized in that a locking mechanism (7) is arranged in the hoist chamber, and the locking mechanism comprises a follow-up pinion (8), a large gear ring (9), a fixed mounting plate (10), a servo motor (11) and a locking oil cylinder (12); the fixed mounting plate is vertically fixed at the bottom of the opening and closing chamber, a through hole (13) is formed in the middle of the fixed mounting plate, the large gear ring is annular, teeth meshed with the follow-up pinion are arranged on the inner side wall of the large gear ring, a circular plate (14) matched with the annular structure is fixedly arranged on one end face of the large gear ring, and a locking connecting block (15) is arranged in the center of the circular plate;
the locking connecting block extends outwards, the outline of the outer wall of the locking connecting block is circular and is rotationally connected with the inner wall of the through hole of the fixed mounting plate, a locking through hole (16) is arranged in the center of the locking connecting block, and the locking through hole is a special-shaped hole; the servo pinion is arranged on the crank arm, the servo motor is fixed on a piston rod (17) of the locking oil cylinder, and an output shaft of the servo motor is fixed with a special-shaped block (18) matched with the special-shaped hole;
the driving oil cylinder enables the crank arm to be at a required angle through a piston rod of the driving oil cylinder, the servo motor enables the special-shaped block to rotate to a proper position, the locking oil cylinder drives the special-shaped block to extend into the special-shaped hole, and the crank arm is locked through the matching of the special-shaped hole, the special-shaped block, the large gear ring and the follow-up pinion;
the outer surface of a piston rod of the driving oil cylinder is provided with a ceramic wear-resistant layer; a piston rod of the driving oil cylinder is provided with a braking device, the braking device comprises an arched support (19), an upper locking hydraulic cylinder (20) and a lower locking hydraulic cylinder (21), and the arched support is vertically fixed in the hoist chamber; an upper piston rod of the upper locking hydraulic cylinder and a lower piston rod of the lower locking hydraulic cylinder are oppositely arranged and are respectively positioned at the upper side and the lower side of a piston rod of the driving oil cylinder, and an upper locking block (22) and a lower locking block (23) are respectively arranged at the end parts of the upper piston rod and the lower piston rod; the upper locking hydraulic cylinder and the lower locking hydraulic cylinder simultaneously drive the upper piston rod and the lower piston rod to move oppositely, so that the upper locking block and the lower locking block are matched to lock the piston rod of the driving oil cylinder.
2. The hydraulic hoist for the safety steel gate according to claim 1, wherein a piston rod supporting seat (24) of a driving oil cylinder is arranged in the hoist chamber, and a supporting shell (25) is arranged on the top of the piston rod supporting seat; the piston rod of the driving oil cylinder is arranged at a position close to the steel gate, a protective sleeve (26) is sleeved on the outer side of the piston rod of the driving oil cylinder, and the protective sleeve of the piston rod of the driving oil cylinder penetrates through the inner cavity of the supporting shell; the protective sheath outer wall axial is equipped with a plurality of spouts, the inner chamber wall axial of support housing is equipped with a plurality of slide rails, slide rail and spout one-to-one and sliding fit.
3. The hydraulic hoist for the safety steel gate as claimed in claim 1, wherein the upper and lower locking blocks are respectively in a semi-circular shape matching with the piston rod of the driving cylinder at the contact position with the piston rod of the driving cylinder, and a rubber cushion layer is arranged on the surface of the semi-circular shape.
4. The hydraulic hoist for the safety steel gate of claim 1, wherein the steel gate is a telescopic gate formed by a plurality of telescopically connected sub-gates (27), each sub-gate is provided with a cavity, and the top of each lower sub-gate is provided with an outlet through which the corresponding upper sub-gate penetrates; a plurality of hydraulic telescopic rods (28) are installed in the cavities of the sub-gates at the lowest layer, the number of the hydraulic telescopic rods is the same as that of all the sub-gates at the upper layer, the hydraulic telescopic rods correspond to the sub-gates at the upper layer one by one, and the hydraulic telescopic rods are respectively used for lifting the sub-gates at the upper layer.
5. The hydraulic hoist for the safety steel gate of claim 4, wherein the bottom of each upper sub-gate is provided with extension blocks (29) on both sides, and the extension blocks are respectively matched with the top of the cavity of the corresponding lower sub-gate to limit the position of the upper sub-gate so as to prevent the upper sub-gate from sliding out of the cavity of the lower sub-gate.
6. The hydraulic hoist for the safety steel gate of claim 5, wherein the top of each of the lower sub-gates is provided with a water level sensor (30), and the top of the cavity of each of the lower sub-gates is provided with a travel switch (31) corresponding to the position of the extending block of the upper sub-gate in the corresponding cavity.
7. The hydraulic hoist for the safety steel gate of claim 6, wherein the bull gear is provided with an angle sensor.
8. The hydraulic hoist for the safety steel gate of claim 7, wherein the hoist is provided with a PLC controller, the water level sensor, the angle sensor and the travel switch are respectively in signal connection with the PLC controller, and the PLC controller is respectively in control connection with the driving oil cylinder, the servo motor, the locking oil cylinder, the upper locking hydraulic cylinder, the lower locking hydraulic cylinder and the hydraulic telescopic rod.
9. The control method of the hydraulic hoist for the safety steel gate as claimed in any one of claims 1-8, characterized by comprising the following steps:
1) locking a crank arm: the driving oil cylinder enables the crank arm to be at a required angle through a piston rod of the driving oil cylinder; in the rotation process of the crank arm, the follow-up pinion drives the large gear ring to rotate relative to the fixed mounting plate, and the special-shaped hole is not contacted with the special-shaped block; after the crank arm reaches a required position, the crank arm stops rotating, meanwhile, an angle sensor on the large gear ring transmits position information to a PLC (programmable logic controller), the PLC controls a servo motor to enable a special-shaped block to rotate to a proper angle, the PLC controls a locking oil cylinder to drive the special-shaped block to extend into a special-shaped hole, and the crank arm is locked through the matching of the special-shaped hole, the special-shaped block, the large gear ring and a follow-up pinion;
2) driving a piston rod of the oil cylinder to brake: the driving oil cylinder enables the crank arm to be at a required angle through a piston rod, an upper locking hydraulic cylinder and a lower locking hydraulic cylinder of the headstock gear chamber work, and simultaneously drives an upper piston rod and a lower piston rod to move in opposite directions, so that an upper locking block and a lower locking block are matched to lock the piston rod of the driving oil cylinder, and a rubber cushion layer can play a role in buffering the piston rod;
3) the gate stretches out and draws back: when the water level rises and water retaining is needed, if a water level sensor at the top of a certain lower-layer sub-gate feels a set water level value, a signal is transmitted to the PLC controller, the PLC controller controls the sub-gate in the cavity of the lower-layer sub-gate to rise through the hydraulic telescopic rod, and when the extension block of the sub-gate triggers the corresponding travel switch, the PLC controller controls the hydraulic telescopic rod to stop rising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385606.0A CN111021316B (en) | 2019-12-29 | 2019-12-29 | Hydraulic hoist for safety steel gate and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911385606.0A CN111021316B (en) | 2019-12-29 | 2019-12-29 | Hydraulic hoist for safety steel gate and control method thereof |
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| CN111021316A true CN111021316A (en) | 2020-04-17 |
| CN111021316B CN111021316B (en) | 2021-04-30 |
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| GB2233303A (en) * | 1989-06-24 | 1991-01-09 | Underhaug As | Bale wrapper apparatus |
| JP2009041190A (en) * | 2007-08-06 | 2009-02-26 | Iseki Tekko Kk | Tilting weir |
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| CN107964926A (en) * | 2017-12-29 | 2018-04-27 | 江苏扬州富达液压机械集团有限公司 | A kind of lower shaft multi-angle locking device of steel dam anchor gate |
| CN108167403A (en) * | 2017-12-08 | 2018-06-15 | 东莞市松研智达工业设计有限公司 | A kind of two grades of transmission mechanisms based on gear ring driving |
| CN209572375U (en) * | 2019-03-05 | 2019-11-05 | 四川省林丰园林建设工程有限公司 | One kind is oozed kind of a device |
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2019
- 2019-12-29 CN CN201911385606.0A patent/CN111021316B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2233303A (en) * | 1989-06-24 | 1991-01-09 | Underhaug As | Bale wrapper apparatus |
| JP2009041190A (en) * | 2007-08-06 | 2009-02-26 | Iseki Tekko Kk | Tilting weir |
| CN101994309A (en) * | 2009-08-11 | 2011-03-30 | 齐宝光 | Piston lift gate |
| CN203729277U (en) * | 2014-02-24 | 2014-07-23 | 扬州市飞龙气动液压设备有限公司 | Gate with tooth type locking device |
| CN108167403A (en) * | 2017-12-08 | 2018-06-15 | 东莞市松研智达工业设计有限公司 | A kind of two grades of transmission mechanisms based on gear ring driving |
| CN107964926A (en) * | 2017-12-29 | 2018-04-27 | 江苏扬州富达液压机械集团有限公司 | A kind of lower shaft multi-angle locking device of steel dam anchor gate |
| CN209572375U (en) * | 2019-03-05 | 2019-11-05 | 四川省林丰园林建设工程有限公司 | One kind is oozed kind of a device |
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| CN111021316B (en) | 2021-04-30 |
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