CN116789025A - Multistage piston hydraulic tension oil cylinder - Google Patents
Multistage piston hydraulic tension oil cylinder Download PDFInfo
- Publication number
- CN116789025A CN116789025A CN202210239965.0A CN202210239965A CN116789025A CN 116789025 A CN116789025 A CN 116789025A CN 202210239965 A CN202210239965 A CN 202210239965A CN 116789025 A CN116789025 A CN 116789025A
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- fixedly connected
- rod
- cylinder body
- base
- hydraulic tension
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- 239000007788 liquid Substances 0.000 claims abstract description 73
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 20
- 239000010720 hydraulic oil Substances 0.000 description 16
- 230000009471 action Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/30—Constructional features with positive brakes or locks
-
- 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
-
- 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
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- 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
- F15B15/1485—Special measures for cooling or heating
-
- 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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field of hydraulic tension cylinders, in particular to a multistage piston hydraulic tension cylinder which comprises a cylinder body, wherein a piston is connected in the cylinder body in a sliding manner, the lower end of the piston is fixedly connected with a rod piece, the lower end of the rod piece is fixedly connected with a lower base, the upper end of the cylinder body is fixedly connected with an upper base, the position, close to the lower end, of the front end of the cylinder body is fixedly connected with a first liquid pipe, the position, close to the upper end, of the front end of the cylinder body is fixedly connected with a second liquid pipe, the lower end of the upper base is provided with an anti-falling mechanism, the lower end of the upper base is fixedly connected with an annular shell, both sides of the upper end of the lower base are fixedly connected with arc plates, and the opposite sides of the two arc plates are provided with notches, so that the rod piece can be fixed in time when a falling emergency occurs, the safety performance of the device is improved, and the device is more practical.
Description
Technical Field
The invention relates to the technical field of hydraulic tension cylinders, in particular to a multistage piston hydraulic tension cylinder.
Background
The hydraulic cylinder is an actuating mechanism in a hydraulic system, and an energy conversion device for converting hydraulic energy into mechanical energy of reciprocating linear motion generally consists of a cylinder body, a piston rod, a cylinder cover and the like.
When the existing tension hydraulic cylinder performs lifting tension and up-down reciprocating work, most safety functions of the device are arranged at the terminal, namely, the device is locked after the device stops working after extending outwards, but when the device is damaged and other emergency conditions occur in the process of telescopic work, the safety of workers can not be well protected sometimes.
For this purpose, a multi-stage piston hydraulic tension cylinder is proposed.
Disclosure of Invention
The invention aims to provide a multistage piston hydraulic tension cylinder, so that a rod piece can be timely fixed when a falling emergency occurs, the object carrying is prevented from falling down rapidly when the device works, the safety performance of the device is improved, and the device has higher practicability, so that the problems in the background technology are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the multistage piston hydraulic tension cylinder comprises a cylinder body, wherein a piston is connected inside the cylinder body in a sliding manner, the lower end of the piston is fixedly connected with a rod piece, the lower end of the rod piece is fixedly connected with a lower base, the upper end of the cylinder body is fixedly connected with an upper base, the front end of the cylinder body is fixedly connected with a first liquid pipe near the lower end, and the front end of the cylinder body is fixedly connected with a second liquid pipe near the upper end;
the lower end of the upper base is provided with an anti-falling mechanism;
the anti-falling mechanism can fix the rod piece when emergency such as oil leakage occurs.
When the first liquid pipe advances oil, hydraulic oil promotes the piston and upwards moves, and the piston drives the member and upwards moves, and when the first liquid pipe of second liquid pipe advances oil, hydraulic oil promotes the piston and downwards moves this moment, and the piston drives the member and downwards moves, and the last base of setting is for making things convenient for the fixed of cylinder body with lower base, through preventing the mechanism that drops, can fix the member when taking place the emergency of oil leak.
Preferably, the lower extreme fixedly connected with annular shell of last base, the equal fixedly connected with arc in upper end both sides of lower base, two the notch has all been seted up to the opposite side of arc, the equal fixedly connected with movable rod in one side that the upper end both sides of lower base are located the notch, the annular shell is inside to be located the upper end position of arc and has been seted up first recess, the annular shell is inside to be located the upper end position of movable rod and has been seted up the second recess, the cavity has been seted up to one side that the cylinder body was kept away from to the inside of annular shell, the cavity is kept away from one side of cylinder body even fixedly connected with first spring, one side fixedly connected with movable plate that the first spring is close to the cylinder body, the opening has been seted up to the center department of movable plate, one side fixedly connected with supporting shoe that the movable plate is close to the cylinder body, the non-newton liquid is filled to the inside of cavity.
When the pulling force hydro-cylinder is carrying out upward pulling force, the piston upwards moves this moment, the piston drives the member upwards to move, the member drives the lower base upwards to move, the lower base upwards moves the inside of first recess of drive arc, the lower base simultaneously drives the movable rod to the inside of second recess and moves, the movable rod is when upwards moving, contact with the opening of movable plate, make the movable plate remove to the direction of cylinder body, tensile first spring simultaneously, the movable plate moves the supporting shoe when moving, make the supporting shoe insert the notch that the arc seted up inside, in case of the sudden event such as oil leakage, the member is quick down moved this moment, the member drives the lower base down to move, lower base drives arc and movable rod down to move, the movable plate resets under the pulling force of first spring this moment, the movable plate slowly resets under the effect of non-Newtonian liquid this moment, make the supporting shoe block card in the inside of notch like this, make the arc not move downwards, the arc drives the lower base keep motionless, the lower base makes the member keep motionless when the supporting shoe card in the inside of notch.
Preferably, a plurality of the supporting blocks are closely attached to each other.
This makes the support block more effective in supporting the arc.
Preferably, the upper end of the moving rod is arc-shaped.
So that the moving rod can push the moving plate more easily.
Preferably, the upper end fixedly connected with threaded rod of piston, the inside of going up the base is located the top fixedly connected with metal bar of first recess, the inside center department of going up the base rotates and is connected with one-way bearing, the interior screw drive of the wall of threaded rod and one-way bearing, the equal fixedly connected with magnet in both sides of one-way bearing, the inside of going up the base is located the top fixedly connected with coil of second recess, coil and metal bar are electric connection, the upper end fixedly connected with magnetite of movable rod, the third recess has all been seted up to the position that the upper end of lower base is close to both sides, the position that the wall of movable rod is close to the lower extreme and the upper end sliding connection of third recess.
When the rod piece descends fast, the piston drives the threaded rod to move downwards, the one-way bearing is internally provided with a thread groove matched with the threaded rod, when the threaded rod moves downwards, the one-way bearing is in a locking state, the threaded rod rotates when descending, the one-way bearing rotates to drive the magnet to rotate, the magnet enables the metal rod to cut the magnetic induction wire to generate directional current when rotating fast, the coil generates magnetic force to attract the magnet, the movable rod is kept motionless, the movable rod moves in the third groove to a certain extent, the movable rod keeps the movable plate motionless, the arc plate can be fixed, and the rod piece can be fixed in another mode.
Preferably, the lower end of the movable rod is fixedly connected with a limiting block.
The movable rod is prevented from being separated from the lower base.
Preferably, a metal block is fixedly connected to the center of the coil.
Enhancing the magnetic properties generated by the coil.
Preferably, the upper end fixedly connected with liquid case of going up the base, the upper end of liquid case is close to the equal fixedly connected with montant in position of both sides, two rotate jointly between the upper end of montant and be connected with the commentaries on classics piece, the upper end fixedly connected with flabellum of commentaries on classics piece, the inside of commentaries on classics piece and the pole wall screw drive of threaded rod, the upper end fixedly connected with dust cover of liquid case, the upper end and the front end fixedly connected with of liquid case of first liquid pipe and second liquid pipe, the pipe wall fixedly connected with drive arrangement of first liquid pipe.
The first liquid pipe and the second liquid pipe are transferred back and forth under the action of the driving device, when the tension oil cylinder needs to work repeatedly, a large amount of heat can be generated to cause mechanical loss to increase, when the driving device works, hydraulic oil is transferred to the liquid tank, the threaded rod is driven to move up and down when the piston is moved, the threaded rod drives the spiral transmission rotating block to rotate when the threaded rod moves, the rotating block drives the fan blade to rotate when the rotating block rotates, the air flow rate on the surface of the liquid tank is accelerated, and the heat dissipation effect is improved.
Preferably, the position of the upper end of the liquid tank, which is close to the right side, is fixedly connected with a selective passing film, the left side of the liquid tank is fixedly connected with a second spring, and the right side of the second spring is fixedly connected with a push plate.
When continuously working, the high temperature can make partial hydraulic oil appear gasifying, through selecting through the membrane with gaseous discharge, and what the description here, select through the membrane and be similar to nano-membrane, can not pass through liquid molecule through gas molecule, the inside no gas of assurance liquid case that the push pedal of second spring promotion can be better.
Preferably, the lower base and the upper base are both made of steel materials.
The quality of the device is better.
Compared with the prior art, the invention has the beneficial effects that:
1. therefore, when the device falls down to an emergency, the rod piece can be fixed timely, so that the object carrying is prevented from falling down quickly when the device works, the safety performance of the device is improved, and the device has higher practicability;
2. the fan blades are rotated through the threaded rods, so that the air flow velocity on the surface of the liquid tank is accelerated, the heat dissipation effect on hydraulic oil is improved, the mechanical loss is reduced, and the device is more practical.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
fig. 4 is an enlarged view of the structure of fig. 3B according to the present invention.
In the figure: 1. a cylinder; 2. a rod piece; 3. a lower base; 4. a piston; 5. an annular shell; 6. an upper base; 7. an anti-falling mechanism; 8. a threaded rod; 9. a magnet; 10. a metal rod; 11. a one-way bearing; 12. a coil; 13. a metal block; 14. a liquid tank; 15. selecting a passing membrane; 16. a dust cover; 17. a fan blade; 18. a vertical rod; 19. a rotating block; 20. a push plate; 21. a second spring; 22. a third groove; 23. a limiting block; 24. a magnet; 25. a first liquid pipe; 26. a driving device; 27. a second liquid pipe;
701. an arc-shaped plate; 702. a notch; 703. a moving rod; 704. a first groove; 705. a moving plate; 706. an opening; 707. a cavity; 708. a first spring; 709. a non-newtonian liquid; 710. a support block; 711. and a second groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, the present invention provides a technical solution:
the multistage piston hydraulic tension cylinder comprises a cylinder body 1, wherein a piston 4 is slidingly connected in the cylinder body 1, a rod 2 is fixedly connected to the lower end of the piston 4, a lower base 3 is fixedly connected to the lower end of the rod 2, an upper base 6 is fixedly connected to the upper end of the cylinder body 1, a first liquid pipe 25 is fixedly connected to the position, close to the lower end, of the front end of the cylinder body 1, and a second liquid pipe 27 is fixedly connected to the position, close to the upper end, of the front end of the cylinder body 1;
the lower end of the upper base 6 is provided with an anti-falling mechanism 7;
the anti-falling mechanism 7 can fix the rod piece 2 when emergency such as oil leakage occurs;
when the working, when first liquid pipe 25 advances oil, hydraulic oil promotes piston 4 to reciprocate, and piston 4 drives member 2 upward movement, and when second liquid pipe 27 advances oil first liquid pipe 25 and produces oil, hydraulic oil promotes piston 4 to reciprocate this moment, and piston 4 drives member 2 to reciprocate, and the fixed of cylinder body 1 is in order to make things convenient for with lower base 3 to last base 6 that sets up, through anti-falling mechanism 7, can fix member 2 when taking place the emergency of oil leak, has strengthened the security of repacking device.
As an embodiment of the present invention, as shown in fig. 1 to 4, the lower end of the upper base 6 is fixedly connected with an annular shell 5, two sides of the upper end of the lower base 3 are fixedly connected with arc plates 701, two opposite sides of the arc plates 701 are respectively provided with a notch 702, one side of the upper end of the lower base 3, which is positioned at the notch 702, is fixedly connected with a moving rod 703, a first groove 704 is provided in the annular shell 5 and is positioned at the upper end of the arc plates 701, a second groove 711 is provided in the annular shell 5 and is positioned at the upper end of the moving rod 703, a cavity 707 is provided in one side of the annular shell 5, which is far away from the cylinder 1, a first spring 708 is uniformly and fixedly connected with one side of the cavity 707, which is near the cylinder 1, an opening 706 is provided at the center of the moving plate 705, one side of the moving plate 705, which is near the cylinder 1, is fixedly connected with a supporting block 710, the inside of the cavity is filled with non-liquid 709, a plurality of supporting blocks 710 are tightly distributed on the moving rod 703, and the cavity is in an arc shape;
when the pulling force oil cylinder is in upward pulling force, the piston 4 moves upwards at the moment, the rod 2 moves upwards, the rod 2 drives the lower base 3 to move upwards, the lower base 3 drives the arc plate 701 to move downwards towards the inside of the first groove 704, the lower base 3 simultaneously drives the moving rod 703 to move towards the inside of the second groove 711, the moving rod 703 contacts with the opening 706 of the moving plate 705 when moving upwards, the moving plate 705 moves towards the cylinder 1, meanwhile, the first spring 708 is stretched, the moving plate 705 drives the supporting block 710 to move when moving, the supporting block 710 is inserted into the notch 702 formed by the arc plate 701, if an emergency such as oil leakage occurs, the rod 2 moves downwards rapidly at the moment, the rod 2 drives the lower base 3 to move downwards, the arc plate 701 and the moving rod 703 move downwards, the moving plate 705 resets under the pulling force of the first spring 708, the moving plate 705 slowly resets under the action of the non-Newtonian liquid 709, thus the supporting block 710 is clamped in the notch 702, and the supporting block 710 is clamped in the notch of the supporting block 710 and the arc plate 3 is kept under the condition that the arc plate 3 is kept under the motion of the arc plate 702; in the above, when an emergency occurs, the rod 2 will drop faster than the working, and the moving speed of the moving plate 705 in the non-newtonian liquid 709 is unchanged, and the moving plate 705 will not contact with the notch 702 during normal working, because the moving speed is related to hydraulic oil during normal working; therefore, when the device falls down to emergency, the rod piece 2 is fixed timely, the object carrying is prevented from falling down rapidly during working, the safety performance of the device is improved, and the device has practicability.
As an embodiment of the present invention, as shown in fig. 3, the upper end of the piston 4 is fixedly connected with a threaded rod 8, a metal rod 10 is fixedly connected to the upper portion of the upper base 6 above the first groove 704, a one-way bearing 11 is rotatably connected to the inner center of the upper base 6, the rod wall of the threaded rod 8 and the inner portion of the one-way bearing 11 are in spiral transmission, two sides of the one-way bearing 11 are fixedly connected with a magnet 9, the inner portion of the upper base 6 is fixedly connected with a coil 12 above the second groove 711, the coil 12 is electrically connected with the metal rod 10, a magnet 24 is fixedly connected to the upper end of the moving rod 703, a third groove 22 is formed at the position of the upper end of the lower base 3, the position of the rod wall of the moving rod 703, which is close to the lower end, is slidably connected with the upper end of the third groove 22, the lower end of the moving rod 703 is fixedly connected with a limiting block 23, and the center of the coil 12 is fixedly connected with a metal block 13;
when the rod 2 is in operation, the piston 4 is driven to quickly descend when the rod 2 is quickly descended, at the moment, the piston 4 drives the threaded rod 8 to move downwards, a thread groove matched with the threaded rod 8 is formed in the unidirectional bearing 11, when the threaded rod 8 moves downwards, the unidirectional bearing 11 is in a locked state, so that the threaded rod 8 rotates the unidirectional bearing 11 when in descending, the unidirectional bearing 11 rotates to drive the magnet 9 to rotate, the magnet 9 rotates to enable the metal rod 10 to cut a magnetic induction wire to generate directional current, the coil 12 generates magnetic force to attract the magnet 24, the moving rod 703 is kept motionless, the moving rod 703 moves in the third groove 22 to a certain extent, the moving rod 703 is kept motionless, the arc plate 701 can be fixed, the rod 2 can be fixed in another way, and in the normal operation, the generated current when the magnet 9 rotates is insufficient to absorb the magnetic force generated, and the gravity force of the moving rod 703 is insufficient to absorb the magnetic force 24; the safety performance of the device is further improved.
As an embodiment of the present invention, as shown in fig. 1 and 2, the upper end of the upper base 6 is fixedly connected with a liquid tank 14, the positions, close to two sides, of the upper end of the liquid tank 14 are fixedly connected with vertical rods 18, a rotating block 19 is rotatably connected between the upper ends of the two vertical rods 18, the upper ends of the rotating block 19 are fixedly connected with fan blades 17, the inside of the rotating block 19 is in spiral transmission with the rod wall of the threaded rod 8, the upper end of the liquid tank 14 is fixedly connected with a dust cover 16, the upper ends of the first liquid pipe 25 and the second liquid pipe 27 are fixedly connected with the front end of the liquid tank 14, and the pipe wall of the first liquid pipe 25 is fixedly connected with a driving device 26;
during operation, the first liquid pipe 25 and the second liquid pipe 27 transfer hydraulic oil back and forth under the action of the driving device 26, when the tension oil cylinder needs to work repeatedly, a large amount of heat is generated to cause mechanical loss to increase, when the driving device 26 works, the hydraulic oil needs to be transferred through the liquid tank 14, the threaded rod 8 is driven to move up and down when the moving piston 4 moves, the threaded rod 8 drives the screw-driven rotating block 19 to rotate when moving, the rotating block 19 drives the fan blade 17 to rotate when rotating, the air flow rate on the surface of the liquid tank 14 is accelerated, the heat dissipation effect is improved, and the mechanical loss is reduced.
As an embodiment of the present invention, as shown in fig. 2, a selective passing membrane 15 is fixedly connected to a position near the right side of the upper end of the liquid tank 14, a second spring 21 is fixedly connected to the left side of the liquid tank 14, and a push plate 20 is fixedly connected to the right side of the second spring 21;
during operation, when continuously working, the high temperature can make partial hydraulic oil appear gasifying, through selecting through membrane 15 with gaseous discharge, and what this description is, select through membrane 15 and be similar to the nanometer membrane, can pass through the gaseous molecule and not pass through liquid molecule, the inside no gas of assurance liquid tank 14 that second spring 21 promotes push pedal 20 that second spring 21 can be better has further improved the practicality of device.
Working principle:
when the hydraulic oil pump works, when the first liquid pipe 25 is used for oil feeding, the hydraulic oil pushes the piston 4 to move upwards, the piston 4 drives the rod piece 2 to move upwards, when the second liquid pipe 27 is used for oil feeding the first liquid pipe 25, the hydraulic oil pushes the piston 4 to move downwards, the piston 4 drives the rod piece 2 to move downwards, the upper base 6 and the lower base 3 are arranged to facilitate the fixation of the cylinder body 1, the rod piece 2 can be fixed when an emergency of oil leakage occurs through the anti-falling mechanism 7, the safety of the modified device is enhanced, when the pull oil cylinder is used for pulling upwards, the piston 4 moves upwards, the piston 4 drives the rod piece 2 to move upwards, the rod piece 2 drives the lower base 3 to move upwards, the arc plate 701 is driven to move inwards of the first groove 704 when the lower base 3 moves upwards, the lower base 3 simultaneously drives the moving rod 703 to move inwards of the second groove 711, when the moving rod 703 moves upwards, the moving rod 703 contacts with the opening 706 of the moving plate 705, so that the moving plate 705 moves towards the direction of the cylinder body 1, and simultaneously stretches the first spring 708, when the moving plate 705 moves, the supporting block 710 is driven to move, so that the supporting block 710 is inserted into the notch 702 formed in the arc plate 701, if an emergency such as oil leakage occurs, the rod 2 rapidly moves downwards, the rod 2 drives the lower base 3 to move downwards, the lower base 3 drives the arc plate 701 and the moving rod 703 to move downwards, at the moment, the moving plate 705 resets under the action of the pull force of the first spring 708, at the moment, the moving plate 705 slowly resets under the action of the non-Newtonian liquid 709, thus the supporting block 710 is clamped in the notch 702, when the supporting block 710 is clamped in the notch 702, the arc plate 701 is not moved downwards, the arc plate 701 drives the lower base 3 to keep fixed, the lower base 3 keeps the rod piece 2 motionless; so that the device can fix the rod piece 2 in time when falling emergency happens, avoid the object carrying from falling down fast when working, improve the safety performance of the device, make the device more practical, when the rod piece 2 falls down fast, drive the piston 4 to fall down fast, the piston 4 drives the threaded rod 8 to move downwards, the one-way bearing 11 is internally provided with a thread groove matched with the threaded rod 8, when the threaded rod 8 moves downwards, the one-way bearing 11 is in a locking state, thus the threaded rod 8 rotates the one-way bearing 11 when falling, the one-way bearing 11 rotates to drive the magnet 9 to rotate, the magnet 9 cuts the magnetic induction line to generate directional current when rotating fast, the coil 12 generates magnetic force to attract the magnet 24, the moving rod 703 is kept motionless, the moving rod 703 moves in the third groove 22 to a certain extent, the moving rod 703 keeps motionless the moving plate 705, thus the arc plate 701 can be fixed, the rod 2 can be fixed in another way, the safety performance of the device is further improved, the first liquid pipe 25 and the second liquid pipe 27 are transferred back and forth under the action of the driving device 26, when the tension cylinder needs to work repeatedly, a great amount of heat can be generated to cause mechanical loss to increase, when the driving device 26 works, the transfer of hydraulic oil needs to pass through the liquid tank 14, when the moving piston 4 moves, the threaded rod 8 is driven to move up and down, the threaded rod 8 drives the spiral transmission rotating block 19 to rotate during movement, the rotating block 19 drives the fan blade 17 to rotate during rotation, the air flow rate on the surface of the liquid tank 14 is quickened, the heat dissipation effect is improved, the mechanical loss is reduced, part of hydraulic oil can be gasified at high temperature when the device continuously works, gas is discharged through the membrane 15, the membrane 15 is similar to a nano membrane, gas molecules can not pass through the liquid molecules, the push plate 20 is pushed by the second spring 21, no gas in the liquid tank 14 can be better ensured, and the practicability of the device is further improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a multistage piston hydraulic tension hydro-cylinder, includes cylinder body (1), the inside sliding connection of cylinder body (1) has piston (4), the lower extreme fixedly connected with member (2) of piston (4), the lower extreme fixedly connected with lower base (3) of member (2), the upper end fixedly connected with upper base (6) of cylinder body (1), the front end of cylinder body (1) is close to the position fixedly connected with first liquid pipe (25) of lower extreme, the front end of cylinder body (1) is close to the position fixedly connected with second liquid pipe (27) of upper end;
the anti-falling mechanism is characterized in that the lower end of the upper base (6) is provided with an anti-falling mechanism (7);
the anti-falling mechanism (7) can fix the rod piece (2) when emergency such as oil leakage occurs.
2. The multistage piston hydraulic tension cylinder according to claim 1, wherein the lower end fixedly connected with annular shell (5) of upper base (6), arc (701) are all fixedly connected with in the upper end both sides of lower base (3), notch (702) are all seted up to the opposite side of arc (701), the upper end both sides of lower base (3) are located one side of notch (702) and all fixedly connected with movable rod (703), first recess (704) have been seted up in the upper end position that is located arc (701) in annular shell (5), second recess (711) have been seted up in the upper end position that is located movable rod (703) in annular shell (5), cavity (707) have been seted up in the inside of annular shell (5) one side of keeping away from cylinder body (1), first spring (708) are evenly fixedly connected with in one side of cavity (707) one side of keeping away from cylinder body (1), one side that first spring (708) is close to cylinder body (705) is fixedly connected with movable plate (705), the upper end position that is located arc (703) is located in arc (701), second recess (711) is seted up in the upper end position that is located movable plate (706), one side (706) is close to cylinder body (1) is located in the fixed connection with cavity (707).
3. The multi-stage piston hydraulic tension cylinder of claim 2, wherein a plurality of the support blocks (710) are closely spaced.
4. A multistage piston hydraulic tension cylinder according to claim 2, wherein the upper end of the moving rod (703) is of arcuate design.
5. The multistage piston hydraulic tension cylinder according to claim 2, wherein the upper end of the piston (4) is fixedly connected with a threaded rod (8), the inside of the upper base (6) is located above the first groove (704) and fixedly connected with a metal rod (10), the inner center of the upper base (6) is rotationally connected with a one-way bearing (11), the rod wall of the threaded rod (8) is in spiral transmission with the inside of the one-way bearing (11), two sides of the one-way bearing (11) are fixedly connected with magnets (9), the inside of the upper base (6) is located above the second groove (711) and fixedly connected with a coil (12), the coil (12) is electrically connected with the metal rod (10), the upper end of the moving rod (703) is fixedly connected with a magnet (24), the positions of the upper ends of the lower base (3) close to the two sides are respectively provided with a third groove (22), and the positions of the rod wall of the moving rod (703) close to the lower ends are in sliding connection with the upper ends of the third groove (22).
6. The multistage piston hydraulic tension cylinder according to claim 5, wherein a stopper (23) is fixedly connected to the lower end of the moving rod (703).
7. The multistage piston hydraulic tension cylinder according to claim 5, wherein a metal block (13) is fixedly connected to the center of the coil (12).
8. The multistage piston hydraulic tension cylinder according to claim 1, wherein the upper end of the upper base (6) is fixedly connected with a liquid tank (14), the positions, close to two sides, of the upper end of the liquid tank (14) are fixedly connected with vertical rods (18), a rotating block (19) is jointly connected between the upper ends of the two vertical rods (18) in a rotating mode, the upper end of the rotating block (19) is fixedly connected with a fan blade (17), the inside of the rotating block (19) is in spiral transmission with the rod wall of the threaded rod (8), the upper end of the liquid tank (14) is fixedly connected with a dust cover (16), the upper ends of the first liquid pipe (25) and the second liquid pipe (27) are fixedly connected with the front end of the liquid tank (14), and the pipe wall of the first liquid pipe (25) is fixedly connected with a driving device (26).
9. The multistage piston hydraulic tension cylinder according to claim 8, wherein a selective passing membrane (15) is fixedly connected to the upper end of the liquid tank (14) near the right side, a second spring (21) is fixedly connected to the left side of the liquid tank (14), and a push plate (20) is fixedly connected to the right side of the second spring (21).
10. The multistage piston hydraulic tension cylinder according to claim 1, wherein the lower base (3) and the upper base (6) are both made of steel materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210239965.0A CN116789025A (en) | 2022-03-12 | 2022-03-12 | Multistage piston hydraulic tension oil cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210239965.0A CN116789025A (en) | 2022-03-12 | 2022-03-12 | Multistage piston hydraulic tension oil cylinder |
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| JPH06323307A (en) * | 1993-05-07 | 1994-11-25 | Ckd Corp | Fluid pressure cylinder with fall preventing device |
| CN201128661Y (en) * | 2007-08-22 | 2008-10-08 | 宁波大榭招商国际码头有限公司 | Gantry crane lifting device with oil cylinder base anti-dropping mechanism |
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