CN104895863A - Servo hydraulic cylinder with integral cylinder bottom - Google Patents
Servo hydraulic cylinder with integral cylinder bottom Download PDFInfo
- Publication number
- CN104895863A CN104895863A CN201510254269.7A CN201510254269A CN104895863A CN 104895863 A CN104895863 A CN 104895863A CN 201510254269 A CN201510254269 A CN 201510254269A CN 104895863 A CN104895863 A CN 104895863A
- Authority
- CN
- China
- Prior art keywords
- sensor
- cylinder bottom
- cylinder
- piston rod
- mounting groove
- 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.)
- Pending
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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
- F15B15/1428—Cylinders
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
A servo hydraulic cylinder with an integral cylinder bottom comprises a cylinder barrel, a cylinder bottom, a piston rod component and a displacement sensor component. A sensor mounting groove is formed in the front end of the cylinder bottom, the sensor is snapped into the sensor mounting groove from an opening of the sensor mounting groove, a threaded hole extending to the sensor from the outer surface of the cylinder bottom is formed in the cylinder bottom, a locking screw is screwed in the threaded hole, and a piston rod and a rod head are in hollow shaft structures. A magnetic ring is arranged in a cavity of the rod head, one end of a magnetic rod is connected with the sensor, the other end of the magnetic rod penetrates the rod head, and the magnetic ring stretches into the cavity of the piston rod. By means of the servo hydraulic cylinder, the structure is simple, the integral cylinder bottom is used, the sensor is fastened from the side through the locking screw through reasonable design, and accordingly, the defects of complicated operations, instable mounting and increasing of hidden leakage danger of split cylinder bottoms are overcome.
Description
Technical field
The present invention relates to servo hydraulic cylinder field, relate in particular to a kind of servo hydraulic cylinder with integral type cylinder bottom.
Background technique
Along with the application of electron controls technology in hydraulic system is more and more extensive, the purposes of servo hydraulic cylinder is also more and more wider.Servo hydraulic cylinder is generally with displacement sensor component, in order to install the sensor in displacement sensor component, the cylinder bottom of servo hydraulic cylinder is generally split type, during installation, by sensor card between two-part of cylinder bottom, then with bolt by affixed for two-part of cylinder bottom, with this, sensor is positioned, this mounting type is complex structure, complex operation, installation instability not only, and adds leakage hidden danger.
Summary of the invention
Technical problem to be solved by this invention is to provide simple, the easy installation of a kind of structure, good stability, can effectively reduces the servo hydraulic cylinder with integral type cylinder bottom revealing hidden danger.
In order to solve the problems of the technologies described above, the present invention adopts following technological scheme: with the servo hydraulic cylinder of integral type cylinder bottom, comprise cylinder barrel, cylinder bottom, piston rod assembly and displacement sensor component, described cylinder bottom is sealedly connected on the rear end of cylinder barrel, described piston rod assembly is sheathed in cylinder barrel, described piston rod assembly comprises piston rod, the bar head being connected to the rear end of piston rod and the piston be sleeved on outside bar head, described displacement sensor component is by sensor, sensor connector, magnetic bar and magnet ring composition, the front-end face of described cylinder bottom is provided with sensor mounting groove, described sensor snaps in described sensor mounting groove from the notch of described sensor mounting groove, described cylinder bottom is also provided with the tapped hole extending to described sensor from the outer surface of cylinder bottom, lock screw is connected with in described tapped hole, the bottom of described sensor mounting groove is provided with the sensor connector mounting hole leading to described cylinder bottom outside, described sensor connector is arranged in described sensor connector mounting hole, and described cylinder bottom is stretched out in the front end of described sensor connector, described piston rod and bar head are hollow shaft structure, described magnet ring is arranged in the inner chamber of described bar head, one end of described magnetic bar connects described sensor, the other end of described magnetic bar is through described bar head, magnet ring stretches in the inner chamber of described piston rod.
Beneficial effect of the present invention is: structure of the present invention is simple, little, easy to implement to existing equipment change; The present invention adopts integral type cylinder bottom, by appropriate design, utilize lock screw tightening sensor from the side, thus overcome complex operation when adopting split type cylinder bottom, install unstable, increase the shortcoming revealing hidden danger, and save the space of oil hydraulic cylinder, reduce processing cost.
Further, described magnet ring is arranged in the annular groove of the rear end inwall being located at described bar head, and described magnet ring is fixed by back-up ring.Adopt this technological scheme, can easy disassembly and replacing magnet ring.
Further, described cylinder bottom is also provided with oil inlet passage.Oil inlet passage is arranged on the starting time that cylinder bottom can reduce oil hydraulic cylinder.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Being labeled as of each parts in accompanying drawing: 1 cylinder barrel, 2 cylinder bottoms, 21 sensor mounting grooves, 22 tapped holes, 23 lock screws, 24 sensor connector mounting holes, 25 oil inlet passages, 31 piston rods, 32 bar heads, 33 pistons, 41 sensors, 42 sensor connector, 43 magnetic bars, 44 magnet rings, 441 back-up rings.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
See Fig. 1.
The servo hydraulic cylinder with integral type cylinder bottom of one embodiment of the invention, comprise cylinder barrel 1, cylinder bottom 2, piston rod assembly and displacement sensor component, described cylinder bottom 2 is sealedly connected on the rear end of cylinder barrel 1, described piston rod assembly is sheathed in cylinder barrel 1, described piston rod assembly comprises piston rod 31, the bar head 32 being connected to the rear end of piston rod 31 and the piston 33 be sleeved on outside bar head 32, described displacement sensor component is by sensor 41, sensor connector 42, magnetic bar 43 and magnet ring 44 form, the front-end face of described cylinder bottom 2 is provided with sensor mounting groove 21, described sensor 41 snaps in described sensor mounting groove 21 from the notch of described sensor mounting groove 21, described cylinder bottom 2 is also provided with the tapped hole 22 extending to described sensor 41 from the outer surface of cylinder bottom 2, lock screw 23 is connected with in described tapped hole 22, in order to ensure the locking effect of lock screw 23, in concrete enforcement, described tapped hole 22 is perpendicular to sensor 41, the bottom of described sensor mounting groove 21 is provided with the sensor connector mounting hole 24 leading to described cylinder bottom 2 outside, described sensor connector 42 is arranged in described sensor connector mounting hole 24, and described cylinder bottom 2 is stretched out in the front end of described sensor connector 42, described piston rod 31 and bar head 32 are hollow shaft structure, described magnet ring 44 is arranged in the inner chamber of described bar head 32, one end of described magnetic bar 43 connects described sensor 41, the other end of described magnetic bar 43 is through described bar head 32, magnet ring 44 stretches in the inner chamber of described piston rod 31.
Described sensor mounting groove 21 is three grades of shoulder holes and axis along cylinder bottom 2 extends, the largest diameter in the one-level hole, front end of described sensor mounting groove 21, described sensor 41 is stuck in the middle one-level hole of described sensor mounting groove 21, like this can at the bottom headspace of described sensor mounting groove 21 in order to place the connecting line between sensor 41 and sensor connector 42, and the one-level hole, front end of described sensor mounting groove 21 can play the guiding role when sensor installation 41, described sensor connector mounting hole 24 is communicated with the one-level hole, rear end of described sensor mounting groove 21.
Described magnet ring 44 is arranged in the annular groove of the rear end inwall being located at described bar head 32, and is fixed by back-up ring 441.Adopt this technological scheme, can easy disassembly and change magnet ring 44, nylon ring can also be set in the both sides of magnet ring 44 in specific embodiment and carry out every magnetic.
Described cylinder bottom 2 is also provided with oil inlet passage 25, oil inlet passage 25 is arranged on the starting time that cylinder bottom 2 can reduce oil hydraulic cylinder.In concrete enforcement, in order to increase the uniformity of fluid, two branch roads are extended at the rear portion of described oil inlet passage 25, and wherein branch road leads to cavity between cylinder bottom 2 and piston 33, another branch road leads to cavity between bar head 32 and sensor 41.
The assembly process of the servo hydraulic cylinder with integral type cylinder bottom of one embodiment of the invention is: the rear end first cylinder bottom 2 being welded on cylinder barrel 1, then the position degree of special frock clamping test sensors mounting groove 21 is utilized, with iron wire, sensor connector 42 is extracted from sensor connector mounting hole 24, again sensor 41 is pressed in sensor mounting groove 21, finally tightening lock screw 23 firmly can be fixed in sensor mounting groove 21 by sensor 41, after sensor 41 installation, again magnet ring 44 is arranged in the inner chamber of bar head 32, finally by existing method built-up piston bar assembly, and make magnetic bar 43 through bar head 32, magnet ring 44 stretches in the inner chamber of piston rod 31.
As can be known from the above technical solutions, the present invention adopts integral type cylinder bottom, by appropriate design, utilizes lock screw 23 tightening sensor 41 from the side, thus overcome complex operation when adopting split type cylinder bottom, install unstable, increase the shortcoming revealing hidden danger.
Be more than one embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, some distortion and improvement can also be made, all belong to protection scope of the present invention.
Claims (3)
1. with the servo hydraulic cylinder of integral type cylinder bottom, comprise cylinder barrel (1), cylinder bottom (2), piston rod assembly and displacement sensor component, described cylinder bottom (2) is sealedly connected on the rear end of cylinder barrel (1), described piston rod assembly is sheathed in cylinder barrel (1), described piston rod assembly comprises piston rod (31), be connected to the bar head (32) of the rear end of piston rod (31) and be sleeved on bar head (32) piston outward (33), described displacement sensor component is by sensor (41), sensor connector (42), magnetic bar (43) and magnet ring (44) composition, it is characterized in that: the front-end face of described cylinder bottom (2) is provided with sensor mounting groove (21), described sensor (41) snaps in described sensor mounting groove (21) from the notch of described sensor mounting groove (21), described cylinder bottom (2) is also provided with the tapped hole (22) extending to described sensor (41) from the outer surface of cylinder bottom (2), lock screw (23) is connected with in described tapped hole (22), the bottom of described sensor mounting groove (21) is provided with leads to the outside sensor connector mounting hole (24) of described cylinder bottom (2), described sensor connector (42) is arranged in described sensor connector mounting hole (24), and described cylinder bottom (2) is stretched out in the front end of described sensor connector (42), described piston rod (31) and bar head (32) are hollow shaft structure, described magnet ring (44) is arranged in the inner chamber of described bar head (32), one end of described magnetic bar (43) connects described sensor (41), the other end of described magnetic bar (43) is through described bar head (32), magnet ring (44) stretches in the inner chamber of described piston rod (31).
2. as claimed in claim 1 with the servo hydraulic cylinder of integral type cylinder bottom, it is characterized in that: described magnet ring (44) is arranged in the annular groove of the rear end inwall being located at described bar head (32), and described magnet ring (44) is fixed by back-up ring (441).
3., as claimed in claim 1 or 2 with the servo hydraulic cylinder of integral type cylinder bottom, it is characterized in that: described cylinder bottom (2) is also provided with oil inlet passage (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254269.7A CN104895863A (en) | 2015-05-18 | 2015-05-18 | Servo hydraulic cylinder with integral cylinder bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510254269.7A CN104895863A (en) | 2015-05-18 | 2015-05-18 | Servo hydraulic cylinder with integral cylinder bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104895863A true CN104895863A (en) | 2015-09-09 |
Family
ID=54028741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510254269.7A Pending CN104895863A (en) | 2015-05-18 | 2015-05-18 | Servo hydraulic cylinder with integral cylinder bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104895863A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356907A (en) * | 2018-12-12 | 2019-02-19 | 科玛（中国）液压设备有限公司 | A kind of sanitation cart oil cylinder |
| CN110159326A (en) * | 2019-05-14 | 2019-08-23 | 北京朗德金燕自动化装备股份有限公司 | A kind of hydraulic support jack and its modularization cylinder bottom and cylinder bottom preparation process |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| JPH0925912A (en) * | 1995-07-10 | 1997-01-28 | Shin Caterpillar Mitsubishi Ltd | Operating speed detecting sensor of cylinder |
| CN2916219Y (en) * | 2005-10-26 | 2007-06-27 | 长沙中联重工科技发展股份有限公司 | Built-in hydraulic oil cylinder |
| CN201326603Y (en) * | 2008-11-12 | 2009-10-14 | 娄底市中兴液压件有限公司 | Telescopic cylinder |
| CN101672307A (en) * | 2008-09-09 | 2010-03-17 | 江苏朝阳液压机械集团有限公司 | Oil cylinder of hydraulic hoist |
| CN102011763A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Hydraulic cylinder for driving self-mounting oil production platform to lift |
| CN202023795U (en) * | 2011-04-12 | 2011-11-02 | 天津优瑞纳斯液压机械有限公司 | Structure for mounting internal displacement sensor in long-stroke hydraulic cylinder |
| CN203441858U (en) * | 2013-07-16 | 2014-02-19 | 蚌埠市行星工程机械有限公司 | Displacement oil cylinder |
| CN204082774U (en) * | 2014-10-16 | 2015-01-07 | 山东同力液压装备有限公司 | The contactless hydraulic jack of a kind of accurate displacement |
| WO2015016104A1 (en) * | 2013-07-31 | 2015-02-05 | カヤバ工業株式会社 | Hydraulic cylinder |
| CN204284066U (en) * | 2014-11-19 | 2015-04-22 | 泸州市巨力液压有限公司 | Easy primer fluid compressing cylinder |
| CN204610419U (en) * | 2015-05-18 | 2015-09-02 | 合肥长源液压股份有限公司 | With the servo hydraulic cylinder of integral type cylinder bottom |
-
2015
- 2015-05-18 CN CN201510254269.7A patent/CN104895863A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| JPH0925912A (en) * | 1995-07-10 | 1997-01-28 | Shin Caterpillar Mitsubishi Ltd | Operating speed detecting sensor of cylinder |
| CN2916219Y (en) * | 2005-10-26 | 2007-06-27 | 长沙中联重工科技发展股份有限公司 | Built-in hydraulic oil cylinder |
| CN101672307A (en) * | 2008-09-09 | 2010-03-17 | 江苏朝阳液压机械集团有限公司 | Oil cylinder of hydraulic hoist |
| CN201326603Y (en) * | 2008-11-12 | 2009-10-14 | 娄底市中兴液压件有限公司 | Telescopic cylinder |
| CN102011763A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Hydraulic cylinder for driving self-mounting oil production platform to lift |
| CN202023795U (en) * | 2011-04-12 | 2011-11-02 | 天津优瑞纳斯液压机械有限公司 | Structure for mounting internal displacement sensor in long-stroke hydraulic cylinder |
| CN203441858U (en) * | 2013-07-16 | 2014-02-19 | 蚌埠市行星工程机械有限公司 | Displacement oil cylinder |
| WO2015016104A1 (en) * | 2013-07-31 | 2015-02-05 | カヤバ工業株式会社 | Hydraulic cylinder |
| CN204082774U (en) * | 2014-10-16 | 2015-01-07 | 山东同力液压装备有限公司 | The contactless hydraulic jack of a kind of accurate displacement |
| CN204284066U (en) * | 2014-11-19 | 2015-04-22 | 泸州市巨力液压有限公司 | Easy primer fluid compressing cylinder |
| CN204610419U (en) * | 2015-05-18 | 2015-09-02 | 合肥长源液压股份有限公司 | With the servo hydraulic cylinder of integral type cylinder bottom |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356907A (en) * | 2018-12-12 | 2019-02-19 | 科玛（中国）液压设备有限公司 | A kind of sanitation cart oil cylinder |
| CN110159326A (en) * | 2019-05-14 | 2019-08-23 | 北京朗德金燕自动化装备股份有限公司 | A kind of hydraulic support jack and its modularization cylinder bottom and cylinder bottom preparation process |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |