CN108869449A - A kind of mechanical compensation formula hydraulic cylinder - Google Patents
A kind of mechanical compensation formula hydraulic cylinder Download PDFInfo
- Publication number
- CN108869449A CN108869449A CN201811130924.8A CN201811130924A CN108869449A CN 108869449 A CN108869449 A CN 108869449A CN 201811130924 A CN201811130924 A CN 201811130924A CN 108869449 A CN108869449 A CN 108869449A
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- CN
- China
- Prior art keywords
- end cover
- piston
- cylinder barrel
- gear
- screw rod
- Prior art date
- 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
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of mechanical compensation formula hydraulic cylinders,Including cylinder barrel,The both ends of the cylinder barrel have been respectively fixedly connected with first end cover and second end cover by bolt,And cylinder barrel is internally provided with piston,One end of the piston is welded with piston rod,The upper cover of piston rod is equipped with seal sleeve of piston rod,The seal sleeve of piston rod is located at the one end of first end cover far from cylinder barrel,The first oil diverting port is offered on the side outer wall of the first end cover,The inside of the cylinder barrel offers interlayer cavity,The present invention is provided with rotation screw rod,Energization magnet ring and permanent-magnetic clamp,The oil cylinder is when compensating movement,By external driver device driving driving shaft rotation,Then the rotation of rotation screw rod is realized by the connection of engagement and driven shaft between gear,To drive energization magnet ring mobile,Finally integrally-built mechanical compensation is effectively realized under the action of energization magnet ring and permanent-magnetic clamp attract each other.
Description
Technical field
The invention belongs to technical field of hydraulic oil cylinder, and in particular to a kind of mechanical compensation formula hydraulic cylinder.
Background technique
Hydraulic cylinder is the hydraulic execution that hydraulic energy is changed into mechanical energy, does straight reciprocating motion (or pendulum motion)
Element, it when realizing reciprocating motion, can remove deceleration device from, and not have drive gap, and movement is steady, therefore in various machines
It is used widely in the hydraulic system of tool.
In the Chinese patent of Patent No. CN205578401U, mechanical compensation formula hydraulic cylinder is proposed, addition is passed through
The mechanical structures such as screw rod realize the compensating operation to hydraulic cylinder, guarantee to remain to pass by screw rod when hydraulic cylinder breaks down
Motivation structure completes scheduled work, and in above-mentioned collocation structure, the drive mechanisms such as screw rod and gear are both secured on piston rod,
During mechanical compensation, by the flexible instead of the flexible of piston rod of screw rod, still, and when hydraulic cylinder works normally, screw rod
Connection structure between gear can cause to limit to the flexible of piston itself, only all remove whole drive mechanism and just may be used
Realize piston normal use, otherwise will lead to hydraulic cylinder itself can not work, the transmission knot of entirety corresponding to one side screw rod
Structure is complicated, and operating process is more troublesome, layman's integrally-built suitable assembling relatively difficult to achieve, on the other hand frequently tears open
Dress can accelerate the whole rate of decay with drive mechanism entirety of oil cylinder, cause unnecessary loss.
Summary of the invention
The purpose of the present invention is to provide a kind of mechanical compensation formula hydraulic cylinders, to solve easy pair of existing collocation structure
The work of hydraulic cylinder itself impacts the problem complex with overall structure connection type.
To achieve the above object, the present invention provides the following technical solutions：A kind of mechanical compensation formula hydraulic cylinder, including cylinder
Cylinder, the both ends of the cylinder barrel have been respectively fixedly connected with first end cover and second end cover by bolt, and cylinder barrel is internally provided with
Piston, one end of the piston are welded with piston rod, and the upper cover of piston rod is equipped with seal sleeve of piston rod, the piston rod packing
Set is located at the one end of first end cover far from cylinder barrel, offers the first oil diverting port, the cylinder on the side outer wall of the first end cover
The inside of cylinder offers interlayer cavity, and one end of close second end cover is fixedly connected with connecting shaft by bearing in the interlayer cavity
Set, one end of the connecting bushing is rotatably connected to rotation screw rod, is arranged with swivel nut on the rotation screw rod, covers on the swivel nut
Equipped with energization magnet ring, the inside of the second end cover offers the second oil diverting port and mounting groove, and the mounting groove, which is located at second, leads
The side of hydraulic fluid port, and the inside of mounting groove is equipped with driving gear, transmission gear and driven gear, the transmission gear is located at master
Between moving gear and driven gear, the inside of the driving gear and driven gear has extended through driving shaft and driven shaft, institute
It states driven shaft to be connected together with connecting bushing, is embedded with permanent-magnetic clamp on the outer wall of the piston.
Preferably, the end face of the first end cover and second end cover offers oil guide groove.
Preferably, conductive switch is installed on the side outer wall of the cylinder barrel.
Preferably, limiting slot and spacer pin, and limiting slot and limit are respectively arranged on the connecting bushing and driven shaft
Pin is mutually clamped.
Preferably, there are two the rotation screw rod is arranged altogether, and two rotation screw rods are located at the two sides of piston.
Preferably, there are two the transmission gear and driven gear are respectively provided with, and two transmission gears and driven gear pair
Claim to be distributed in the two sides of driving gear, two driven gears by driven shaft and connecting bushing respectively with two rotation screw rods
Rotation connection.
Compared with prior art, the present invention having the advantages that：
(1) present invention is provided with rotation screw rod, energization magnet ring and permanent-magnetic clamp, and the oil cylinder is when compensating movement, by outer
Portion's driving device drives driving shaft rotation, then realizes rotation screw rod by the connection of engagement and driven shaft between gear
Rotation is finally effectively realized under the action of energization magnet ring and permanent-magnetic clamp attract each other whole to drive energization magnet ring mobile
The mechanical compensation of structure, in addition no matter which kind of state oil cylinder is in, and keeps effective independent between each structure, such as oil cylinder
When being worked normally, driving device and energization magnet ring are not powered on, and integral mechanical structure will not operate, and energization magnet ring with
Also attraction is not present between permanent-magnetic clamp, piston can be moved freely effectively, and when oil cylinder is in the state of mechanical compensation, liquid
Press pump is in off-position, and no hydraulic oil enters in cylinder barrel, equally also avoids causing to hinder to the movement of piston, overall structure phase
Mutual independence is not interfere with each other, and in switch operating state without dismantling to any structure, effectively avoids collocation structure to oil cylinder
The work of itself impacts, and also can effectively realize that the mechanical compensation of the hydraulic cylinder is made while reducing structure installation number
With.
(2) present invention be provided with second end cover, connecting bushing and driven shaft, oil cylinder pass through when in use connecting bushing and from
The transmission between overall structure is effectively realized in engaging between moving axis, and in addition the hydraulic cylinder is only needed during installation by the sheet of oil cylinder
Body structure carries out suitable installation connection, such as the fixed form that first end cover and second end cover can be bolted
It is attached with cylinder barrel, and when connecting second end cover and cylinder barrel, it is only necessary to guarantee the insertion connecting shaft that two driven shafts can be stable
The connection of entire compensation structure can be realized in set, mounting means is simple, eliminates the connection procedure to collocation structure complexity, has
Effect is suitable for the autonomous installation of layman.
Detailed description of the invention
Fig. 1 is front view of the invention；
Fig. 2 is enlarged drawing at A of the invention；
Fig. 3 is enlarged drawing at B of the invention；
Fig. 4 is the side view of second end cover of the present invention；
Fig. 5 is the front view of second end cover of the present invention；
In figure：1- first end cover, the first oil diverting port of 11-, 2- cylinder barrel, 21- interlayer cavity, 22- connecting bushing, 23- rotate spiral shell
Bar, 24- swivel nut, 25- energization magnet ring, 3- second end cover, the second oil diverting port of 31-, 32- mounting groove, 33- driving gear, 34- transmission
Gear, 35- driven gear, 36- driving shaft, 37- driven shaft, 4- piston, 41- permanent-magnetic clamp, 5- piston rod, 6- piston rod packing
Set.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-Fig. 5, the present invention provides the following technical solutions：A kind of mechanical compensation formula hydraulic cylinder, including
The both ends of cylinder barrel 2, cylinder barrel 2 have been respectively fixedly connected with first end cover 1 and second end cover 3, and the inside setting of cylinder barrel 2 by bolt
There is piston 4, one end of piston 4 is welded with piston rod 5, it is arranged with seal sleeve of piston rod 6 on piston rod 5, seal sleeve of piston rod 6
In the one end of first end cover 1 far from cylinder barrel 2, offer the first oil diverting port 11 on the side outer wall of first end cover 1, cylinder barrel 2 it is interior
Portion offers interlayer cavity 21, by interlayer cavity 21 effectively realize cylinder barrel 2 inside piston 4 with rotate screw rod 23 collocation structure it
Between separation, avoid generating between each structure and interfere with each other, it is solid by bearing close to one end of second end cover 3 in interlayer cavity 21
Surely it is connected with connecting bushing 22, one end of connecting bushing 22 is rotatably connected to rotation screw rod 23, rotates and is arranged with spiral shell on screw rod 23
Set 24 effectively realizes the reciprocating movement of energization magnet ring 25 by screwing between swivel nut 24 and rotation screw rod 23, to drive work
Plug 4 carries out the mobile effective compensations for realizing integral mechanical structure, is arranged with energization magnet ring 25 on swivel nut 24, second end cover 3 it is interior
Portion offers the second oil diverting port 31 and mounting groove 32, and mounting groove 32 is located at the side of the second oil diverting port 31, and mounting groove 32 is interior
Portion is equipped with driving gear 33, transmission gear 34 and driven gear 35, and transmission gear 34 is located at driving gear 33 and driven gear
Between 35, the inside of driving gear 33 and driven gear 35 has extended through driving shaft 36 and driven shaft 37, driven shaft 37 and company
Spindle set 22 is connected together, and effectively realizes overall structure interlink function with the engaging of connecting bushing 22 by driven shaft 37, in addition
Connection type between driven shaft 37 and connecting bushing 22 is simple, is effectively applicable to the autonomous installation of layman, piston 4
Permanent-magnetic clamp 41 is embedded on outer wall, energization magnet ring 25 and power switch are electrically connected.
Further, the end face of first end cover 1 and second end cover 3 offers oil guide groove.
Further, conductive switch is installed on the side outer wall of cylinder barrel 2.
Specifically, limiting slot and spacer pin, and limiting slot and limit are respectively arranged on connecting bushing 22 and driven shaft 37
Pin is mutually clamped.
It is worth noting that there are two the total settings of rotation screw rod 23, and two rotation screw rods 23 are located at the two of piston 4
Side.
Preferably, there are two transmission gear 34 and driven gear 35 are respectively provided with, and two transmission gears 34 and driven gear
35 are symmetrically distributed in the two sides of driving gear 33, two driven gears 35 by driven shaft 37 and connecting bushing 22 respectively with two
Screw rod 23 is rotated to be rotatablely connected.
The working principle of the invention and process for using：It is divided into two kinds of use states when using the invention, one of which is
Integrated hydraulic oil cylinder is in normal condition, can be worked normally by oil cylinder itself at this time, pass through first end cover 1 and second end
Two oil diverting ports on lid 3 realize the oil inlet of 4 two sides of piston and fuel-displaced, and according to two sides difference oil mass to liquid caused by piston 4
Pressure is different and realizes the movement of piston 4, and piston 4 drives 5 synchronizing moving of piston rod in the process of moving, to realize piston
The reciprocating movement of bar 5, another is that the leakproofness that hydraulic cylinder is in inside abnormal condition, such as oil cylinder goes wrong,
Even if the movement of piston 4 can not accurately be realized by pouring hydraulic oil into cylinder barrel 2 at this time also, just close in this case hydraulic
The driving shaft 36 of 3 middle position of second end cover and motor or other driving devices are attached to realize driving shaft 36 by pump
Rotation, while opening the conductive switch on 2 outer wall of cylinder barrel, so that energization magnet ring 25, which is powered, generates magnetic field, driving shaft 36 is turning
Driving gear 33 is driven to rotate when dynamic, driving gear 33 then drives driven gear 35 to rotate by the engagement of transmission gear 34, from
Moving gear 35 drives driven shaft 37 to rotate in rotation, and driven shaft 37 drives connecting shaft further through the restriction of spacer pin and limiting slot
22 rotation of set, the final rotation for realizing rotation screw rod 23, and rotate screw rod 23 and generated between rotation and swivel nut 24 and screwed, thus
The swivel nut 24 and energization magnet ring 25 is driven to move up and down, energization magnet ring 25 is generated to generate between permanent-magnetic clamp 41 after electromagnetic field and is added to
Attraction, thus permanent-magnetic clamp 41 can be with 25 synchronizing moving of energization magnet ring, to realize the fortune of piston 4 under the action of attraction
It is dynamic, it effectively realizes the mechanical compensation to integrated hydraulic oil cylinder, guarantees that hydraulic cylinder remains in effective working condition.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of mechanical compensation formula hydraulic cylinder, including cylinder barrel (2), it is characterised in that：The both ends of the cylinder barrel (2) pass through bolt
First end cover (1) and second end cover (3) have been respectively fixedly connected with it, and cylinder barrel (2) is internally provided with piston (4), the piston
(4) one end is welded with piston rod (5), is arranged with seal sleeve of piston rod (6), the piston rod packing on the piston rod (5)
Set (6) is located at the one end of first end cover (1) far from cylinder barrel (2), offers first on the side outer wall of the first end cover (1) and leads
The inside of hydraulic fluid port (11), the cylinder barrel (2) offers interlayer cavity (21), close to second end cover (3) in the interlayer cavity (21)
One end is fixedly connected with connecting bushing (22) by bearing, and one end of the connecting bushing (22) is rotatably connected to rotation screw rod
(23), it is arranged with swivel nut (24) on the rotation screw rod (23), is arranged with energization magnet ring (25) on the swivel nut (24), described
The inside of two end caps (3) offers the second oil diverting port (31) and mounting groove (32), and the mounting groove (32) is located at the second oil diverting port
(31) side, and the inside of mounting groove (32) is equipped with driving gear (33), transmission gear (34) and driven gear (35), institute
It states transmission gear (34) to be located between driving gear (33) and driven gear (35), the driving gear (33) and driven gear
(35) inside has extended through driving shaft (36) and driven shaft (37), and the driven shaft (37) engages company with connecting bushing (22)
It connects, is embedded with permanent-magnetic clamp (41) on the outer wall of the piston (4).
2. a kind of mechanical compensation formula hydraulic cylinder according to claim 1, it is characterised in that：The first end cover (1) and
The end face of second end cover (3) offers oil guide groove.
3. a kind of mechanical compensation formula hydraulic cylinder according to claim 1, it is characterised in that：The side of the cylinder barrel (2)
Conductive switch is installed on outer wall.
4. a kind of mechanical compensation formula hydraulic cylinder according to claim 1, it is characterised in that：The connecting bushing (22) and
Limiting slot and spacer pin are respectively arranged on driven shaft (37), and limiting slot is mutually clamped with spacer pin.
5. a kind of mechanical compensation formula hydraulic cylinder according to claim 1, it is characterised in that：The rotation screw rod (23) is altogether
There are two settings, and two rotations screw rod (23) are located at the two sides of piston (4).
6. a kind of mechanical compensation formula hydraulic cylinder according to claim 1 or 5, it is characterised in that：The transmission gear
(34) and there are two driven gear (35) is respectively provided with, and two transmission gears (34) and driven gear (35) are symmetrically distributed in actively
The two sides of gear (33), two driven gears (35) are rotated with two respectively by driven shaft (37) and connecting bushing (22)
Screw rod (23) rotation connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130924.8A CN108869449A (en) | 2018-09-27 | 2018-09-27 | A kind of mechanical compensation formula hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130924.8A CN108869449A (en) | 2018-09-27 | 2018-09-27 | A kind of mechanical compensation formula hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869449A true CN108869449A (en) | 2018-11-23 |
Family
ID=64324745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811130924.8A Withdrawn CN108869449A (en) | 2018-09-27 | 2018-09-27 | A kind of mechanical compensation formula hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869449A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026900A (en) * | 2018-10-29 | 2018-12-18 | 长兴佰菲特机械有限公司 | A kind of mechanical compensation formula hydraulic cylinder |
| CN111350713A (en) * | 2018-12-20 | 2020-06-30 | 中芯集成电路（宁波）有限公司 | Cylinder and machine table comprising same |
| CN114857124A (en) * | 2022-04-24 | 2022-08-05 | 合肥志必达液压科技有限公司 | Multistage rotation type hydraulic cylinder system |
-
2018
- 2018-09-27 CN CN201811130924.8A patent/CN108869449A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026900A (en) * | 2018-10-29 | 2018-12-18 | 长兴佰菲特机械有限公司 | A kind of mechanical compensation formula hydraulic cylinder |
| CN111350713A (en) * | 2018-12-20 | 2020-06-30 | 中芯集成电路（宁波）有限公司 | Cylinder and machine table comprising same |
| CN114857124A (en) * | 2022-04-24 | 2022-08-05 | 合肥志必达液压科技有限公司 | Multistage rotation type hydraulic cylinder system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181123 |
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| WW01 | Invention patent application withdrawn after publication |