CN110594239A - Hydraulic cylinder with lifting hook, hook opening method and relay type hydraulic hoist - Google Patents
Hydraulic cylinder with lifting hook, hook opening method and relay type hydraulic hoist Download PDFInfo
- Publication number
- CN110594239A CN110594239A CN201910920192.0A CN201910920192A CN110594239A CN 110594239 A CN110594239 A CN 110594239A CN 201910920192 A CN201910920192 A CN 201910920192A CN 110594239 A CN110594239 A CN 110594239A
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- China
- Prior art keywords
- hydraulic cylinder
- hydraulic
- rotating shaft
- cylinder body
- follow
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/40—Swinging or turning gates
- E02B7/42—Gates of segmental or sector-like shape with horizontal axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/17—Characterised by the construction of the motor unit of the straight-cylinder type of differential-piston type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a hydraulic cylinder with a lifting hook, a hook opening method and a relay type hydraulic hoist. The invention aims to provide a hydraulic cylinder with a lifting hook, a hook opening method and a relay type hydraulic hoist, which have the advantages of simple structure, convenience in operation and lower cost. The technical scheme of the invention is as follows: the hydraulic cylinder is provided with a hydraulic cylinder body, and the end part of a piston rod in the hydraulic cylinder body is rotatably connected with a lifting hook through a rotating shaft I; a follow-up pull rod is arranged around the hydraulic cylinder body, a guide sleeve is coaxially sleeved on the follow-up pull rod, the guide sleeve is rotatably connected with a connecting rod through a rotating shaft III, and the connecting rod is connected to a cylinder body in the hydraulic cylinder body; in an initial state, the follow-up pull rod is parallel to a piston rod in the hydraulic cylinder body; the end part of the follow-up pull rod is rotatably connected with a connecting seat through a rotating shaft II, and the connecting seat is fixed on the lifting hook; the rotating shaft I is perpendicular to the axial direction of the piston rod, and the rotating shaft I, the rotating shaft II and the rotating shaft III are arranged in parallel; the stroke of a piston rod in the hydraulic cylinder body is larger than that of the follow-up pull rod. The invention is suitable for water conservancy and hydropower engineering.
Description
Technical Field
The invention relates to a hydraulic cylinder with a lifting hook, a hook opening method and a relay type hydraulic hoist. Is suitable for water conservancy and hydropower engineering.
Background
The relay type hydraulic hoist is used for operating the radial gate 4 of the meter hole, and is provided with double hoisting points, each hoisting point adopts two hydraulic cylinders to hook the corresponding hoisting shaft 3 on the gate leaf alternately, the gate is opened or closed, and correspondingly, a row of hoisting shafts 3 is arranged on the gate leaf panel corresponding to each hydraulic cylinder (see figure 1).
When closing the door, the hook 2 of the empty hook ascending hydraulic cylinder needs to be opened so as to cross the hanging shaft 3. In the prior art, the opening of the lifting hook 2 is operated by an auxiliary hydraulic cylinder, when a piston of a main hydraulic cylinder reaches the lower limit of a stroke, a hydraulic system fills oil into rod cavities of two auxiliary cylinders, and the piston of the auxiliary hydraulic cylinder moves upwards to pull the lifting hook 2 to open.
Because the probability that the resistances of the lifting hooks 2 of the two lifting points are different is very high, the easy-opening hooks are asynchronous, and the phenomenon that the waiting time for the whole opening time of the two lifting hooks 2 is long occurs in the operation process.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems, the hydraulic cylinder with the lifting hook, the hook opening method and the relay type hydraulic hoist are provided, wherein the hydraulic cylinder is simple in structure, convenient to operate and low in cost.
The technical scheme adopted by the invention is as follows: the utility model provides a take pneumatic cylinder of lifting hook which characterized in that: the hydraulic cylinder is provided with a hydraulic cylinder body, and the end part of a piston rod in the hydraulic cylinder body is rotatably connected with a lifting hook through a rotating shaft I;
a follow-up pull rod is arranged around the hydraulic cylinder body, a guide sleeve is coaxially sleeved on the follow-up pull rod, the guide sleeve is rotatably connected with a connecting rod through a rotating shaft III, and the connecting rod is connected to a cylinder body in the hydraulic cylinder body; in an initial state, the follow-up pull rod is parallel to a piston rod in the hydraulic cylinder body;
the end part of the follow-up pull rod is rotatably connected with a connecting seat through a rotating shaft II, and the connecting seat is fixed on the lifting hook;
the rotating shaft I is perpendicular to the axial direction of the piston rod, and the rotating shaft I, the rotating shaft II and the rotating shaft III are arranged in parallel;
the stroke of a piston rod in the hydraulic cylinder body is larger than that of the follow-up pull rod.
A hooking method of the hydraulic cylinder with the lifting hook is characterized in that:
a piston rod in the hydraulic cylinder body extends outwards and drives the follow-up pull rod to extend outwards together through a lifting hook and a connecting seat;
when the follow-up pull rod extends out to the stroke limit under the driving of the piston rod, the extension is stopped;
the piston rod continues to extend outwards, and the lifting hook rotates around the rotating shaft I under the action of the rotating shafts I, II and III, the connecting seat, the follow-up pull rod and the guide sleeve, so that the lifting hook is opened.
A relay type hydraulic hoist is characterized in that: the hydraulic cylinder with the lifting hook is provided with any one of two hydraulic cylinders with the lifting hook, stroke detection devices for acquiring the strokes of piston rods in the corresponding hydraulic cylinders are arranged on the two hydraulic cylinders with the lifting hook, and the stroke detection devices are connected with the hydraulic and electric control systems of the two hydraulic cylinders through circuits;
the hydraulic electric control system acquires the stroke data of the piston rods acquired by the two stroke detection devices, and when the two piston rods are asynchronous, the hydraulic oil conveyed to the corresponding hydraulic cylinders is adjusted through the hydraulic electric control system, so that the extending synchronization of the piston rods is ensured, and the synchronization of the hook opening of the two hydraulic cylinders is realized.
The invention has the beneficial effects that: the invention realizes the opening action of the lifting hook by arranging the follow-up pull rod which can follow the piston rod and has a stroke smaller than that of the piston rod, and has simple structure and lower cost.
According to the invention, the stroke detection devices are respectively arranged on the two hydraulic cylinders in the relay type hydraulic hoist, the stroke detection devices are used for acquiring the strokes of the piston rods in the two hydraulic cylinders, and when the two piston rods are asynchronous, the hydraulic pressure transmitted to the corresponding hydraulic cylinders is regulated through the hydraulic electric control system, so that the extension synchronization of the piston rods is ensured, and the tension hook synchronization of the two hydraulic cylinders is realized.
Drawings
Fig. 1 is a schematic diagram of a relay type hydraulic hoist in the prior art.
Fig. 2 is a schematic structural diagram of a hydraulic cylinder in the embodiment.
Detailed Description
The embodiment is a relay type hydraulic hoist, which is provided with two hydraulic cylinders with lifting hooks 2, wherein the two hydraulic cylinders are controlled by a hydraulic electric control system to extend and retract a piston rod 7.
As shown in fig. 2, the hydraulic cylinder with the hook 2 in this example has a cylinder body 1, the end of a piston rod 7 in the cylinder body is rotatably connected to the hook 2 through a rotating shaft i 6, a connecting seat 11 is fixed on the hook 2, the connecting seat 11 is rotatably connected to a follower link 5 through a rotating shaft ii 10, wherein the rotating shaft ii 10 is arranged in parallel with the rotating shaft i 6. In this embodiment, the follow-up pull rod 5 is arranged in parallel with the piston rod 7, the guide sleeve 8 is coaxially sleeved on the follow-up pull rod 5, the follow-up pull rod 5 can linearly move in the guide sleeve 8 along the axial direction thereof, and the guide sleeve 8 is fixed on the cylinder body 101 of the hydraulic cylinder body 1 through the connecting rod 9.
In the embodiment, the stroke of the piston rod 7 in the hydraulic cylinder body 1 is L1, the stroke of the follow-up pull rod 5 in the guide sleeve 8 in the axial linear motion is L2, and L1 is larger than L2.
The working principle of the hydraulic cylinder tensioning hook with the lifting hook 2 in the embodiment is as follows:
a piston rod 7 in the hydraulic cylinder body 1 extends outwards and drives the follow-up pull rod 5 to extend outwards together through a lifting hook 2 and a connecting seat 11;
when the follow-up pull rod 5 extends out to the stroke limit under the driving of the piston rod 7, the extension is stopped;
the piston rod 7 continues to extend outwards, and because the follow-up pull rod 5 cannot continue to extend outwards at the moment, the lifting hook 2 rotates around the rotating shaft I, the connecting seat 11 rotates around the rotating shaft II, and the guide sleeve 8 rotates around the rotating shaft III, so that the lifting hook is opened;
when the lifting hook resets, piston rod 7 contracts in the pneumatic cylinder body 1, because piston rod 7 and follow-up pull rod 5 nonparallel under the lifting hook open state, follow-up pull rod 5 does not move this moment, and lifting hook 2 revolves I rotations of axis of rotation, and connecting seat 11 revolves II rotations of axis of rotation, and uide bushing 8 revolves III rotations around rotating, and when uide bushing 8 rotated to 7 parallel position with the piston rod, follow-up pull rod 5 retracted with piston rod 7 is together.
In order to enable the two hydraulic cylinders with the lifting hooks 2 to act synchronously, in this embodiment, stroke detection devices 16 for acquiring strokes of the piston rods 7 in the corresponding hydraulic cylinders are mounted on the two hydraulic cylinders, and the strokes detection devices 16 are electrically connected with hydraulic and electrical control systems of the two hydraulic cylinders.
The hydraulic electric control system obtains the stroke data of the piston rods 7 acquired by the two stroke detection devices 16, and when the two piston rods 7 are asynchronous, the hydraulic oil conveyed to the corresponding hydraulic cylinders is adjusted through the hydraulic electric control system, so that the extension synchronization of the piston rods 7 is ensured, the hook opening synchronization of the two hydraulic cylinders is realized, and the hook opening action of the two hydraulic cylinders is completed in the shortest time.
In this example, a guide wheel I12 is mounted at the hook tip of the hook 2. In the embodiment, the end of the hook 2 connected with the piston rod 7 is connected with a guide wheel II 13 through a support rod 14.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should understand that they can make various changes, additions and substitutions within the scope of the present invention.
Claims (3)
1. The utility model provides a take pneumatic cylinder of lifting hook which characterized in that: the hydraulic cylinder is provided with a hydraulic cylinder body (1), and the end part of a piston rod (7) in the hydraulic cylinder body is rotatably connected with a lifting hook (2) through a rotating shaft I (6);
the servo-actuated hydraulic cylinder is characterized in that a servo-actuated pull rod (5) is arranged around the hydraulic cylinder body (1), a guide sleeve (8) is coaxially sleeved on the servo-actuated pull rod (5), the guide sleeve (8) is rotatably connected with a connecting rod (9) through a rotating shaft III (15), and the connecting rod is connected to a cylinder body (101) in the hydraulic cylinder body (1); in the initial state, the follow-up pull rod (5) is parallel to a piston rod (7) in the hydraulic cylinder body (1);
the end part of the follow-up pull rod (5) is rotatably connected with a connecting seat (11) through a rotating shaft II (10), and the connecting seat (11) is fixed on the lifting hook (2);
the rotating shaft I (6) is perpendicular to the axial direction of the piston rod (7), and the rotating shaft I (6), the rotating shaft II (10) and the rotating shaft III (15) are arranged in parallel;
the stroke of a piston rod (7) in the hydraulic cylinder body (1) is larger than that of the follow-up pull rod (5).
2. A method for opening a hook of a hydraulic cylinder with a lifting hook according to claim 1, wherein:
a piston rod (7) in the hydraulic cylinder body (1) extends outwards and drives the follow-up pull rod (5) to extend outwards together through a lifting hook (2) and a connecting seat (11);
when the follow-up pull rod (5) extends out to the stroke limit under the drive of the piston rod (7), the extension is stopped;
the piston rod (7) continues to extend outwards, and the lifting hook (2) rotates around the rotating shaft I under the action of the rotating shafts I, II and III, the connecting seat (11), the follow-up pull rod (5) and the guide sleeve (8), so that the lifting hook is opened.
3. A relay type hydraulic hoist is characterized in that: the hydraulic control system is characterized by comprising two hydraulic cylinders with lifting hooks (2) according to claim 1, wherein stroke detection devices (16) used for acquiring strokes of piston rods (7) in the corresponding hydraulic cylinders are arranged on the two hydraulic cylinders with the lifting hooks (2), and the stroke detection devices (16) are connected with the hydraulic electric control systems of the two hydraulic cylinders through circuits;
the hydraulic electric control system acquires stroke data of the piston rods (7) acquired by the two stroke detection devices (16), and when the two piston rods (7) are asynchronous, hydraulic oil conveyed to the corresponding hydraulic cylinders is adjusted through the hydraulic electric control system, so that the extending synchronization of the piston rods (7) is ensured, and the opening hook synchronization of the two hydraulic cylinders is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920192.0A CN110594239A (en) | 2019-09-26 | 2019-09-26 | Hydraulic cylinder with lifting hook, hook opening method and relay type hydraulic hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910920192.0A CN110594239A (en) | 2019-09-26 | 2019-09-26 | Hydraulic cylinder with lifting hook, hook opening method and relay type hydraulic hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110594239A true CN110594239A (en) | 2019-12-20 |
Family
ID=68863881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910920192.0A Pending CN110594239A (en) | 2019-09-26 | 2019-09-26 | Hydraulic cylinder with lifting hook, hook opening method and relay type hydraulic hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028123A (en) * | 2021-01-21 | 2021-06-25 | 中国电建集团华东勘测设计研究院有限公司 | Two-way water retaining bottom shaft driven flap gate hydraulic hoist capable of automatically adjusting back pressure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180682Y (en) * | 1993-11-30 | 1994-10-26 | 能源部水利部华东勘测设计研究院 | Relay type hydraulic open and close machine |
| JPH1150437A (en) * | 1997-08-04 | 1999-02-23 | Fuji Seiko Honsha:Kk | Auxiliary device of for erection of waterproof door |
| CN203701052U (en) * | 2013-12-10 | 2014-07-09 | 扬州市富达液压机械有限公司 | Synchronous hydraulic integrated type hoist |
| CN104499461A (en) * | 2014-12-16 | 2015-04-08 | 长江勘测规划设计研究有限责任公司 | Method for adjusting electrical control parameters of proportioning valves of double-cylinder hydraulic gate hoist |
| CN108087357A (en) * | 2017-12-28 | 2018-05-29 | 国网福建省电力有限公司 | Double lifting point gate relay type hydraulic headstock gear closed-loop synchronization control method |
| CN210686502U (en) * | 2019-09-26 | 2020-06-05 | 中国电建集团华东勘测设计研究院有限公司 | Hydraulic cylinder with lifting hook and relay type hydraulic hoist |
-
2019
- 2019-09-26 CN CN201910920192.0A patent/CN110594239A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180682Y (en) * | 1993-11-30 | 1994-10-26 | 能源部水利部华东勘测设计研究院 | Relay type hydraulic open and close machine |
| JPH1150437A (en) * | 1997-08-04 | 1999-02-23 | Fuji Seiko Honsha:Kk | Auxiliary device of for erection of waterproof door |
| CN203701052U (en) * | 2013-12-10 | 2014-07-09 | 扬州市富达液压机械有限公司 | Synchronous hydraulic integrated type hoist |
| CN104499461A (en) * | 2014-12-16 | 2015-04-08 | 长江勘测规划设计研究有限责任公司 | Method for adjusting electrical control parameters of proportioning valves of double-cylinder hydraulic gate hoist |
| CN108087357A (en) * | 2017-12-28 | 2018-05-29 | 国网福建省电力有限公司 | Double lifting point gate relay type hydraulic headstock gear closed-loop synchronization control method |
| CN210686502U (en) * | 2019-09-26 | 2020-06-05 | 中国电建集团华东勘测设计研究院有限公司 | Hydraulic cylinder with lifting hook and relay type hydraulic hoist |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028123A (en) * | 2021-01-21 | 2021-06-25 | 中国电建集团华东勘测设计研究院有限公司 | Two-way water retaining bottom shaft driven flap gate hydraulic hoist capable of automatically adjusting back pressure |
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