CN110296126A - The hydraulic cylinder for having detection hydraulic oil - Google Patents
The hydraulic cylinder for having detection hydraulic oil Download PDFInfo
- Publication number
- CN110296126A CN110296126A CN201910627305.8A CN201910627305A CN110296126A CN 110296126 A CN110296126 A CN 110296126A CN 201910627305 A CN201910627305 A CN 201910627305A CN 110296126 A CN110296126 A CN 110296126A
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- China
- Prior art keywords
- oil
- hydraulic
- hydraulic cylinder
- cylinder
- detection
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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.)
- Pending
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Classifications
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- 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
-
- 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
- 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
- F15B15/1457—Piston rods
-
- 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
- F15B19/005—Fault detection or monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/186—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of hydraulic cylinders for having detection hydraulic oil, including cylinder body, oil inlet pipe, flowline, first check valve is installed on oil inlet pipe, second one-way valve is installed on flowline, first check valve is connected with the first oil pipe, second one-way valve is connected with the second oil pipe, first oil pipe is connected with regulating valve, the lower end of regulating valve is connected with oil-piping, the oil outlet of oil-piping is connected with oil return box, second oil pipe is connected with oil return box, and the upper end of regulating valve has inflow pipeline body to be connected, and is equipped with oil pump on inflow pipeline body;Leak oil line is communicated in the lower end of cylinder body, plug cock plate body is slidably fitted in the internal cavities of leak oil line, the promotion body of rod is installed in the lower end of plug cock plate body, the side of the body of rod is pushed to be fixedly installed with transverse link, transverse link is deep into conductive oil groove, it is placed with conductive oil liquid in conductive oil groove, is connected with longitudinal compression bar in one end of transverse link, conducting sphere is installed in the lower end of longitudinal compression bar.
Description
Technical field
The present invention relates to hydraulic cylinder technical fields, more particularly to a kind of hydraulic cylinder for having detection hydraulic oil.
Background technique
Hydraulic transmission technology can be carried out the transmitting, conversion and control of energy with the pressure of liquid, due to its stable drive, pass
It moves the advantages that facilitating than big, speed regulation and is widely used in all trades and professions.
Hydraulic cylinder is as the executive component in hydraulic system, as its pressure energy for supplying system of the conversion equipment of energy
Driving working equipment is converted to move reciprocatingly or the mechanical energy of rotary motion.It is power and speed that hydraulic cylinder, which mainly exports,
Also there are output torque and revolving speed.Its application field of the hydraulic cylinder of ordinary construction is quite extensive, and quite a few
There is the approved product of oneself standardization, seriation.However the hydraulic cylinder of special construction is special due to its use scope
Property its application just so universal, even if in this way, with people's continually developing and exploring for new things so that special
The status that the hydraulic cylinder of different structure is occupied in Hydraulic Power Transmission System is continuously available promotion.
After hydraulic cylinder completes, need to carry out Oil Leakage Detecting to hydraulic cylinder, traditional hydraulic cylinder cannot detect
The pressure of hydraulic oil, can not detect that pressure may will lead to hydraulic oil leakage and people do not know, pressure when in use
Not enough lead to the generation of safety accident.
Summary of the invention
The object of the invention is that providing a kind of hydraulic cylinder for having detection hydraulic oil to solve the above-mentioned problems.
The present invention through the following technical solutions to achieve the above objectives:
A kind of hydraulic cylinder having detection hydraulic oil, including cylinder body, in the external setting of the cylinder body
There is the oil inlet pipe communicated with inside it, the flowline communicated with inside it is provided in the outside of the cylinder body, in institute
It states and the first check valve is installed on oil inlet pipe, second one-way valve, first check valve and are installed on the flowline
One oil pipe is connected, and the second one-way valve is connected with the second oil pipe, and first oil pipe is connected with regulating valve, the regulating valve
Lower end is connected with oil-piping, and the oil outlet of the oil-piping is connected with oil return box, and second oil pipe is connected with the oil return box,
The upper end of the regulating valve has inflow pipeline body to be connected, and oil pump, and the inflow pipeline are equipped on the inflow pipeline body
Body is extend into hydraulic oil container;It is communicated with leak oil line in the lower end of the cylinder body, in the internal cavities of the leak oil line
In be slidably fitted with plug cock plate body, the promotion body of rod is installed in the lower end of the plug cock plate body, the side for pushing the body of rod is solid
Dingan County is equipped with transverse link, and the transverse link is deep into conductive oil groove, is placed with conductive oil liquid in the conductive oil groove,
It is connected with longitudinal compression bar in one end of the transverse link, conducting sphere is installed in the lower end of longitudinal compression bar.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, pacify in the bottom end of the conductive oil groove
Equipped with conductor wire, and switch is installed on the conductor wire, is connected with alarm in one end of the conductor wire.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, the cylinder body includes hydraulic
Cylinder barrel is machined with hydraulic chamber in the hydraulic cylinder body, front end housing is equipped in the front end of the hydraulic cylinder cylinder, in institute
The rear end for stating hydraulic cylinder cylinder is equipped with back cylinder cover.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, it is equipped in the hydraulic chamber
Piston is equipped with hydraulic cylinder rod on the piston, support base is fixedly installed in one end of the hydraulic cylinder rod, in the branch
One end of support seat is fixedly installed with the first ear joint chair, the first earhole is machined on the first ear joint chair, in the back cylinder cover
One end be fixedly installed with the second ear joint chair, be machined with the second earhole on the second ear joint chair.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, the piston is slidably mounted on hydraulic
The inside of chamber is machined with internal screw thread along the direction of axis line of the piston, is machined in one end of the hydraulic cylinder rod outer
Screw thread is attached between the hydraulic cylinder rod and the piston by screw thread.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, the first ear joint chair is welded on institute
It states on the wall surface of support base, the second ear joint chair is welded on the end face of the back cylinder cover.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, installed in the cylinder body
There is pressure sensor, the pressure sensor forms semiconductor strain pressure in sheet surface, makes thin metal plate by pressure
And illustrate the effect of Piezoelectric Impedance, so that the variation of impedance is converted to electric signal.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, the pressure sensor is mounted on work
On the front end face of plug, and it is electrically connected with alarm.
The beneficial effects of the present invention are:
1, in the use of the present invention, being equipped with the first check valve on oil inlet pipe, it is unidirectional that second is equipped on flowline
Valve, the first check valve are connected with the first oil pipe, and second one-way valve is connected with the second oil pipe, and the first oil pipe is connected with regulating valve, adjust
The lower end of section valve is connected with oil-piping, and the oil outlet of oil-piping is connected with oil return box, and the second oil pipe is connected with the oil return box, adjusts
The upper end of section valve has inflow pipeline body to be connected, and oil pump is equipped on inflow pipeline body, inflow pipeline body extend into hydraulic oil container
In;Oil pump is connected with regulating valve, and regulating valve passes through pipeline and the first check valve and second one-way valve and oil inlet pipe, flowline phase
Even, can be realized and hydraulic cylinder is detected, provide the pressure of a cataclysm for hydraulic cylinder, can accurate detection go out hydraulic cylinder
Whether oil leak, guarantee hydraulic cylinder detection reliability, ensure the normal use of hydraulic cylinder.
2, leak oil line is communicated with by the lower end in cylinder body, is slidably fitted with oil in the internal cavities of leak oil line
Seben body is equipped with the promotion body of rod in the lower end of plug cock plate body, pushes the side of the body of rod to be fixedly installed with transverse link, laterally connect
Bar is deep into conductive oil groove, and conductive oil liquid is placed in conductive oil groove, is connected with longitudinal compression bar in one end of transverse link,
Conducting sphere is installed in the lower end of longitudinal compression bar, conductor wire is installed in the bottom end of conductive oil groove, is connected in one end of conductor wire
There is alarm.When oil leak occurs, hydraulic oil can flow into plug cock plate body along leak oil line, and plug cock plate body will receive pressure effect
It moves down, pushes the body of rod to move down to drive, catch bar, which is known from experience, drives longitudinal compression bar to move down, and will drive conducting sphere in this way and transports downwards
Dynamic, conducting sphere is contacted with conductive oil liquid, so that alarm is powered and then sounds an alarm, is reminded to people.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the structural schematic diagram of cylinder body in the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As depicted in figs. 1 and 2, a kind of hydraulic cylinder having detection hydraulic oil, including cylinder body, described
The outside of cylinder body is provided with the oil inlet pipe 10 communicated with inside it, the outside of the cylinder body be provided with and its
The flowline 11 that inside communicates is equipped with the first check valve 12 on the oil inlet pipe 10, is equipped on the flowline 11
Second one-way valve 13, first check valve 12 are connected with the first oil pipe 14, the second one-way valve 13 and 15 phase of the second oil pipe
Even, first oil pipe 14 is connected with regulating valve 16, and the lower end of the regulating valve 16 is connected with oil-piping 17, the oil-piping 17
Oil outlet be connected with oil return box 18, second oil pipe 15 is connected with the oil return box 18, and the upper end of the regulating valve 16 has
Inflow pipeline body 19 is connected, and oil pump 20 is equipped on the inflow pipeline body 19, and the inflow pipeline body 19 extend into liquid
In pressure oil case 21;It is communicated with leak oil line 22 in the lower end of the cylinder body, it is sliding in the internal cavities of the leak oil line 22
It is dynamic that plug cock plate body 23 is installed, it is equipped in the lower end of the plug cock plate body 23 and pushes the body of rod 24, the side for pushing the body of rod 24
End is fixedly installed with transverse link 25, and the transverse link 25 is deep into conductive oil groove 26, puts in the conductive oil groove 26
It is equipped with conductive oil liquid 27, is connected with longitudinal compression bar 28 in one end of the transverse link 25, in the lower end of longitudinal compression bar 28
Conducting sphere 29 is installed.
In order to further increase the use function for the hydraulic cylinder for having detection hydraulic oil, in the bottom end of the conductive oil groove 26
Conductor wire 30 is installed, and switch is installed on the conductor wire 30, is connected with alarm in one end of the conductor wire 30
31.The cylinder body includes hydraulic cylinder cylinder 1, hydraulic chamber is machined in the hydraulic cylinder cylinder 1, in the hydraulic cylinder
The front end of cylinder 1 is equipped with front end housing 2, is equipped with back cylinder cover 3 in the rear end of the hydraulic cylinder cylinder 1.In the hydraulic chamber
Piston 4 is inside installed, hydraulic cylinder rod 5 is installed on the piston 4, is fixedly installed with branch in one end of the hydraulic cylinder rod 5
Seat 6 is supportted, the first ear joint chair 7 is fixedly installed in one end of the support base 6, is machined with first on the first ear joint chair 7
Earhole is fixedly installed with the second ear joint chair 8 in one end of the back cylinder cover 3, is machined with the second ear on the second ear joint chair 8
Hole.The piston 4 is slidably mounted on the inside of hydraulic chamber, is machined with internal screw thread along the direction of axis line of the piston 4,
One end of the hydraulic cylinder rod 5 is machined with external screw thread, is attached between the hydraulic cylinder rod 5 and the piston 4 by screw thread.
The first ear joint chair 7 is welded on the wall surface of the support base 6, and the second ear joint chair 8 is welded on the end of the back cylinder cover 3
On face.Pressure sensor 9 is installed in the cylinder body, the pressure sensor 9 forms semiconductor in sheet surface
Rock deformation pressure makes thin metal plate illustrate the effect of Piezoelectric Impedance, so that the variation of impedance is converted to electricity by pressure
Signal.The pressure sensor 9 is mounted on the front end face of piston 4, and is electrically connected with alarm.
As depicted in figs. 1 and 2, when in use, the first check valve 12 is installed on oil inlet pipe 10, is pacified on flowline 11
Equipped with second one-way valve 13, the first check valve 12 is connected with the first oil pipe 14, and second one-way valve 13 is connected with the second oil pipe 15, the
One oil pipe 14 is connected with regulating valve 16, and the lower end of regulating valve 16 is connected with oil-piping 17, the oil outlet and oil return box of oil-piping 17
18 are connected, and the second oil pipe 15 is connected with the oil return box 18, and the upper end of regulating valve 16 has inflow pipeline body 19 to be connected, in oil inlet pipe
Oil pump 20 is installed, inflow pipeline body 19 is extend into hydraulic oil container 21 on road body 19;Oil pump 20 is connected with regulating valve 16, adjusts
Valve 16 is connected by pipeline and the first check valve 12 and second one-way valve 13 with oil inlet pipe 10, flowline 11, can be realized to liquid
Cylinder pressure is detected, and provides the pressure of a cataclysm for hydraulic cylinder, can accurate detection go out hydraulic cylinder whether oil leak, guarantee liquid
The reliability of cylinder pressure detection, ensures the normal use of hydraulic cylinder.
As depicted in figs. 1 and 2, leak oil line 22 is communicated with by the lower end in cylinder body, in the inside of leak oil line 22
It is slidably fitted with plug cock plate body 23 in cavity, is equipped in the lower end of plug cock plate body 23 and pushes the body of rod 24, pushes the side of the body of rod 24
End is fixedly installed with transverse link 25, and transverse link 25 is deep into conductive oil groove 26, is placed with conduction in conductive oil groove 26
Oil liquid 27, is connected with longitudinal compression bar 28 in one end of transverse link 25, is equipped with conducting sphere 29 in the lower end of longitudinal compression bar 28,
The bottom end of conductive oil groove 26 is equipped with conductor wire 30, is connected with alarm 31 in one end of conductor wire 30.When oil leak occurs, liquid
Pressure oil can flow into plug cock plate body 23 along leak oil line 22, and plug cock plate body 23 will receive pressure effect and move down, to drive promotion
The body of rod 24 moves down, and pushes the body of rod 24 to will drive longitudinal compression bar 28 and moves down, will drive conducting sphere 29 in this way and move downward, conducting sphere 29
It contacts with conductive oil liquid 27, so that alarm 31 is powered and then sounds an alarm, is reminded to people.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (8)
1. a kind of hydraulic cylinder for having detection hydraulic oil, it is characterised in that: including cylinder body, in the cylinder body
Outside is provided with the oil inlet pipe (10) communicated with inside it, is provided in the outside of the cylinder body and communicates with inside it
Flowline (11) is equipped with the first check valve (12) on the oil inlet pipe (10), and is equipped on the flowline (11)
Two check valves (13), first check valve (12) are connected with the first oil pipe (14), the second one-way valve (13) and the second oil
It manages (15) to be connected, first oil pipe (14) is connected with regulating valve (16), the lower end and oil-piping (17) of the regulating valve (16)
It is connected, the oil outlet of the oil-piping (17) is connected with oil return box (18), second oil pipe (15) and the oil return box (18)
It is connected, the upper end of the regulating valve (16) there are inflow pipeline body (19) to be connected, and is equipped with oil on the inflow pipeline body (19)
It pumps (20), and the inflow pipeline body (19) is extend into hydraulic oil container (21);It is communicated in the lower end of the cylinder body
Leak oil line (22) is slidably fitted with plug cock plate body (23) in the internal cavities of the leak oil line (22), in the plug cock plate body
(23) lower end, which is equipped with, pushes the body of rod (24), and the side for pushing the body of rod (24) is fixedly installed with transverse link (25), institute
It states transverse link (25) to be deep into conductive oil groove (26), is placed with conductive oil liquid (27) in the conductive oil groove (26),
One end of the transverse link (25) is connected with longitudinal compression bar (28), is equipped with conducting sphere in the lower end of longitudinal compression bar (28)
(29)。
2. the hydraulic cylinder according to claim 1 for having detection hydraulic oil, it is characterised in that: in the conductive oil groove (26)
Bottom end be equipped with conductor wire (30), and switch is installed on the conductor wire (30), in one end of the conductor wire (30)
It is connected with alarm (31).
3. the hydraulic cylinder according to claim 2 for having detection hydraulic oil, it is characterised in that: the cylinder body includes
Hydraulic cylinder cylinder (1), the hydraulic cylinder cylinder (1) is interior to be machined with hydraulic chamber, installs in the front end of the hydraulic cylinder cylinder (1)
There are front end housing (2), back cylinder cover (3) are installed in the rear end of the hydraulic cylinder cylinder (1).
4. the hydraulic cylinder according to claim 3 for having detection hydraulic oil, it is characterised in that: pacify in the hydraulic chamber
Equipped with piston (4), hydraulic cylinder rod (5) are installed on the piston (4), are fixedly mounted in one end of the hydraulic cylinder rod (5)
There are support base (6), the first ear joint chair (7) is fixedly installed in one end of the support base (6), in the first ear joint chair (7)
On be machined with the first earhole, be fixedly installed with the second ear joint chair (8) in one end of the back cylinder cover (3), connect in second ear
The second earhole is machined on seat (8).
5. the hydraulic cylinder according to claim 4 for having detection hydraulic oil, it is characterised in that: piston (4) the sliding peace
Mounted in the inside of hydraulic chamber, it is machined with internal screw thread along the direction of axis line of the piston (4), in the hydraulic cylinder rod (5)
One end be machined with external screw thread, be attached between the hydraulic cylinder rod (5) and the piston (4) by screw thread.
6. the hydraulic cylinder according to claim 5 for having detection hydraulic oil, it is characterised in that: the first ear joint chair (7)
It is welded on the wall surface of the support base (6), the second ear joint chair (8) is welded on the end face of the back cylinder cover (3).
7. the hydraulic cylinder according to claim 6 for having detection hydraulic oil, it is characterised in that: in the cylinder body
It is equipped with pressure sensor (9), the pressure sensor (9) forms semiconductor strain pressure in sheet surface, is made by pressure
Thin metal plate and illustrate the effect of Piezoelectric Impedance so that the variation of impedance is converted to electric signal.
8. the hydraulic cylinder according to claim 7 for having detection hydraulic oil, it is characterised in that: the pressure sensor (9)
It is mounted on the front end face of piston (4), and is electrically connected with alarm.
Priority Applications (1)
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CN201910627305.8A CN110296126A (en) | 2019-07-12 | 2019-07-12 | The hydraulic cylinder for having detection hydraulic oil |
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CN201910627305.8A CN110296126A (en) | 2019-07-12 | 2019-07-12 | The hydraulic cylinder for having detection hydraulic oil |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110821917A (en) * | 2019-11-14 | 2020-02-21 | 徐州乐泰机电科技有限公司 | Oil leakage self-checking self-plugging integrated hydraulic oil cylinder of oil filling port |
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CN205117897U (en) * | 2015-11-20 | 2016-03-30 | 常州海宏液压设备有限公司 | Freeze dryer hydraulic cylinder with leak measurement function a little |
CN206111726U (en) * | 2016-11-01 | 2017-04-19 | 常州海宏液压设备有限公司 | Piston rod leaks automated inspection freeze dryer hydro -cylinder outward |
CN206449057U (en) * | 2017-01-25 | 2017-08-29 | 天津奥兰特液压设备维修有限公司 | Leakage monitoring device in a kind of high-precision hydraulic cylinder |
CN207486260U (en) * | 2017-11-30 | 2018-06-12 | 南京海王汽车零部件有限公司 | The structure of high-pressure oil pipe product hermeticity energy can be enhanced |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110821917A (en) * | 2019-11-14 | 2020-02-21 | 徐州乐泰机电科技有限公司 | Oil leakage self-checking self-plugging integrated hydraulic oil cylinder of oil filling port |
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