CN116464690B - Be used for urban sewage treatment high accuracy displacement hydro-cylinder - Google Patents
Be used for urban sewage treatment high accuracy displacement hydro-cylinder Download PDFInfo
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- CN116464690B CN116464690B CN202310728874.8A CN202310728874A CN116464690B CN 116464690 B CN116464690 B CN 116464690B CN 202310728874 A CN202310728874 A CN 202310728874A CN 116464690 B CN116464690 B CN 116464690B
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- ring
- oil cylinder
- guide
- cylinder rod
- connecting seat
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 37
- 239000010865 sewage Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 96
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 59
- 230000008093 supporting effect Effects 0.000 claims description 32
- 238000003825 pressing Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 70
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- 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
- F15B15/1461—Piston rod sealings
-
- 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
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2861—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT using magnetic means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention relates to a high-precision displacement oil cylinder for urban sewage treatment, which comprises the following components: the oil cylinder assembly comprises an oil cylinder shell and an oil cylinder rod; further comprises: the displacement sensor comprises a distance sensor fixedly connected to the tail end of the oil cylinder shell, a distance probe is arranged at the front end of the distance sensor, a detection hole which is opened towards the connecting part of the piston is formed in the oil cylinder rod, and the distance probe extends into the detection hole; the front end connecting seat is fixed at the front end of the oil cylinder shell, and an oil cylinder rod cleaning mechanism is connected in the front end connecting seat; the oil cylinder rod cleaning mechanism comprises a guide ring, water inlet holes and water drain holes are formed in the side wall surface of the guide ring, guide sheets are arranged in a linear array in the guide ring, guide gaps are arranged between adjacent guide sheets, the radial two ends of the guide gaps are respectively communicated with the corresponding water inlet holes and the corresponding water drain holes, and high-speed water flow is introduced into the guide gaps through a circulating water pump, so that the surface of the oil cylinder rod can be washed.
Description
Technical Field
The invention relates to a high-precision displacement oil cylinder for urban sewage treatment, belonging to the field of sewage treatment pool mechanisms.
Background
The displacement oil cylinder of the sewage treatment device is mainly used for opening and closing the gate of the sewage treatment tank, and for the sewage treatment tank, the gate needs to be closed with higher precision, otherwise, sewage leakage easily occurs; the sewage pool is easy to bring certain pollution to the related mechanical structure of the gate because of the characteristics of the sewage pool; therefore, the oil cylinder is required to have higher working precision and better pollution resistance;
because the sewage components in the sewage treatment tank are complex, after the sewage is difficult to adhere to the surface of the oil cylinder rod of the oil cylinder, the used sealing element can well block pollutants on the surface of the oil cylinder rod, and the sewage tank has a certain temperature in the microbial reaction process, so that a certain requirement is put forward for the sealing element of the oil cylinder rod.
Disclosure of Invention
The invention aims to solve the technical problems that: the technical problem in the prior art is solved, and the high-precision displacement oil cylinder for urban sewage treatment is provided.
The technical scheme adopted for solving the technical problems is as follows:
a high precision displacement cylinder for municipal sewage treatment, comprising:
the oil cylinder assembly comprises an oil cylinder shell and an oil cylinder rod, the end part of the oil cylinder rod is sleeved with a fixed piston, and the piston is in sliding sealing connection with the inner wall of the oil cylinder shell; the front end of the oil cylinder shell is provided with a sealing block, and an oil cylinder rod passes through the sealing block and is in sliding sealing connection with the sealing block; the inner wall of the front end of the oil cylinder shell is provided with a first hydraulic connector, and the tail end of the rear shell is provided with a second hydraulic connector;
further comprises:
the displacement sensor comprises a distance sensor fixedly connected to the tail end of the oil cylinder shell, a distance probe extending into the oil cylinder shell is arranged at the front end of the distance sensor, a detection hole which is opened towards the fixed position of the piston is arranged in the oil cylinder rod, and the distance probe extends into the detection hole;
the front end connecting seat is of an annular frame structure, the tail end of the front end connecting seat is sleeved at the front end of the oil cylinder shell, and an oil cylinder rod cleaning mechanism is connected in the front end connecting seat;
the inner ring of the front end connecting seat is provided with a connecting cavity with an annular concave structure; the piston pollution discharge mechanism comprises a guide ring and a front end connecting seat which are of an integrated structure, a water inlet hole and a water discharge hole are formed in the side wall surface of the guide ring, the water inlet hole and the water discharge hole are symmetrically arranged relative to the circle center of the guide ring, the water inlet hole comprises a plurality of sub water inlet holes which are arranged in a linear array along the axis of the guide ring, the water discharge hole comprises a plurality of water discharge holes which are arranged in a linear array along the axis of the guide ring, a first outer connecting ring is arranged at the position, corresponding to the water inlet hole and the water discharge hole, of the outer wall of the front end connecting seat, an arc water inlet cavity and an arc water discharge cavity are respectively arranged at the arrangement position, corresponding to the water inlet hole and the water discharge hole, of the first outer connecting ring is fixedly penetrated by a water inlet pipe and a water discharge pipe which are communicated with the water inlet cavity and the water discharge cavity respectively; annular limiting check rings are arranged at two axial ends of the connecting cavity, the sewage disposal mechanism further comprises guide plates which are arranged in a linear array along the axis of the guide ring, the guide plates are arranged between the limiting check rings, the guide plates are of annular structures, an annular outer ring of each guide plate is in contact with the inner wall of the guide ring, an annular inner ring of each guide plate is in clearance fit with the outer wall of the oil cylinder rod, guide gaps are arranged between adjacent guide plates, and two radial end parts of each guide gap are respectively communicated with corresponding water diversion holes and water diversion holes; a supporting frame is arranged between adjacent guide vanes, the supporting frame comprises a supporting ring which is in clearance fit with an oil cylinder rod, the width of the supporting ring is smaller than the clearance between the adjacent guide vanes, a plurality of supporting blocks clamped between the adjacent guide vanes are annularly arranged on the supporting ring in an array manner, and the supporting blocks and the supporting ring are fixed through connecting ribs;
wherein, inlet tube and drain pipe are connected on the cyclic filtration waterway system.
As a further improvement of the invention, an oil cylinder rod blowing mechanism is arranged at the rear end of the connecting cavity corresponding to the piston pollution discharge mechanism; the oil cylinder rod blowing mechanism comprises an annular drying cavity which is arranged at one side of the connecting cavity facing the sealing block, a second outer connecting ring is sleeved outside the front-end connecting seat, an air inlet groove and an air outlet groove are respectively arranged at the two radial ends of the second outer connecting ring, the air inlet groove is connected with an air inlet pipe in a penetrating manner, the air outlet groove is connected with an air outlet pipe in a penetrating manner, a plurality of air inlet holes and air outlet holes are arranged at the front-end connecting seat in an array manner corresponding to the arrangement positions of the air inlet groove and the air outlet groove, and the air inlet holes and the air outlet holes are communicated with the drying cavity; the air inlet pipe is connected to the air pump, and the air outlet pipe is connected to the water-vapor separation valve; the drying mechanism can purge some pollutants and cleaning liquid which are remained on the surface of the oil cylinder rod through high-speed air flow, so that the burden of an oil cylinder sealing element is further reduced, and the cleanliness of the surface of the oil cylinder rod when the oil cylinder rod is recycled into the oil cylinder shell is ensured.
As a further improvement of the invention, a sealing baffle ring is arranged on the outer wall of the rear end of the front end connecting seat, the sealing baffle ring is fixedly connected with a first outer connecting ring through a flange, one axial side of the first outer connecting ring is in sealing contact with the sealing baffle ring, and the other axial end of the first outer connecting ring is provided with a first sealing bulge ring in sealing contact with the outer wall of the front end connecting seat; the first outer connecting ring is installed and fixed through the outer flange structure, compared with welded fastening, maintainability is improved.
As a further improvement of the invention, the other axial end of the second outer connecting ring is fixedly connected with the sealing baffle ring through a flange, one axial side of the second outer connecting ring is in sealing contact with the sealing baffle ring, and the other axial end of the second outer connecting ring is provided with a second sealing bulge ring in sealing contact with the outer wall of the front end connecting seat; the first outer connecting ring is installed and fixed through the outer flange structure, compared with welded fastening, maintainability is improved.
As a further improvement of the invention, the two groups of limiting check rings in the connecting cavity are respectively a front limiting check ring and a rear limiting check ring; a plurality of supporting ribs are annularly arranged on one axial end of the rear limit retainer ring in an array manner and are used for being contacted with the axial tail end of the connecting cavity, and the other axial end of the rear limit retainer ring is contacted with the guide vane; the front end of the front end connecting seat is fixedly connected with a front end pressing ring through a flange, the axial front end of the connecting cavity is positioned on the end face of one axial end of the front end pressing ring, and the front limit check ring is contacted with one axial end face of the front end pressing ring; the support rib on the back spacing retaining ring provides better flow space for the high-speed air current of hydro-cylinder pole jetting mechanism when guaranteeing the inside stable contact of back spacing retaining ring and front end connecting seat, and the preceding spacing retaining ring of front end then supports through the front end clamp ring by the flange is fixed, also makes preceding spacing retaining ring and the guide vane of setting more easily dismantle and maintain.
As a further improvement of the invention, an adapter ring is integrally fixed on the outer wall of the oil cylinder shell, and the front end connecting seat is fixedly connected with the adapter ring through a flange.
As a further improvement of the invention, the inner rings of the front limiting retainer ring and the rear limiting retainer ring are respectively provided with an extension ring used for being in contact with the guide vane, the extension rings can promote the contact area between the limiting retainer ring and the guide vane, the supporting effect of the guide vane is improved, and the possibility of deformation of the guide vane due to high-pressure water flow is reduced.
As a further improvement of the invention, the displacement sensor is a magnetic telescopic displacement sensor, a waveguide tube of the magnetic telescopic displacement sensor is arranged in the distance probe, and an induction magnetic ring of the magnetic telescopic displacement sensor is inlaid on the inner wall of the connecting position of the oil cylinder rod corresponding to the piston.
The beneficial effects of the invention are as follows:
1. according to the invention, the high-speed flowing space of the cleaning liquid formed by the guide vane is arranged at the front end of the existing oil cylinder, and the cleaning liquid is driven by the circulating water pump, so that the surface of the oil cylinder rod can be washed at a high speed, dirt is discharged and filtered, the possibility of adhesion of sewage in a sewage pool to the surface of the oil cylinder can be reduced, the burden of an oil cylinder sealing element is reduced, the possibility of pollution to hydraulic oil is also reduced, and the service life of a hydraulic mechanism is ensured.
2. According to the invention, the displacement detection mechanism formed by the electromagnetic displacement sensor is arranged in the oil cylinder, so that the electromagnetic displacement sensor is less susceptible to the influence of the use environment compared with the optical structure and the like, and has higher stability.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic view of a first outer connecting ring;
fig. 4 is a schematic structural view of the support frame.
In the figure: 1. an oil cylinder housing; 2. an oil cylinder rod; 3. a piston; 4. a detection hole; 5. a distance sensor; 6. a protective shell; 7. a distance probe; 8. a first hydraulic connection port; 9. a second hydraulic connection port; 10. a sealing block; 11. a front end connecting seat; 12. a connecting cavity; 13. an adapter ring; 14. a guide ring; 15. dividing water inlet holes; 16. a first outer connecting ring; 17. a second outer connecting ring; 18. a sealing baffle ring; 19. a water inlet cavity; 20. a front limit retainer ring; 21. a rear limit retainer ring; 22. a support rib; 23. an air inlet hole; 24. a deflector; 25. a support frame; 26. a water inlet pipe; 27. a drain pipe; 28. an air inlet pipe; 29. an exhaust pipe; 30. a support ring; 31. a connecting rib; 32. and a supporting block.
Detailed Description
As shown in fig. 1, the present invention is a high-precision displacement cylinder for municipal sewage treatment, comprising: the device comprises an oil cylinder assembly, a displacement sensor, a front end connecting seat 11, an oil cylinder rod cleaning mechanism and an oil cylinder rod blowing mechanism;
as shown in fig. 1, the oil cylinder assembly comprises an oil cylinder shell 1 and an oil cylinder rod 2, a piston 3 is fixedly sleeved at the end part of the oil cylinder rod 2, and the piston 3 is in sliding sealing connection with the inner wall of the oil cylinder shell 1; the front end of the oil cylinder shell 1 is provided with a sealing block 10, and the oil cylinder rod 2 passes through the sealing block 10 and is in sliding sealing connection with the sealing block 10; a first hydraulic connection port 8 is arranged on the inner wall of the front end of the oil cylinder shell 1, a second hydraulic connection port 9 is arranged at the tail end of the rear shell, and an adapter which is movably connected with a gate is arranged at the front end of the oil cylinder rod 2;
as shown in fig. 1, the displacement sensor comprises a magnetic telescopic displacement sensor fixedly connected to the tail end of an oil cylinder shell 1, the front end of the magnetic telescopic displacement sensor is fixed to the tail end of the oil cylinder shell 1 in a sealing way, a protective shell 6 for protecting a main machine of the magnetic telescopic displacement sensor is fixed at the tail end of the oil cylinder shell 1, a waveguide tube is arranged at the front end of the magnetic telescopic displacement sensor, the tail end of the waveguide tube is fixed with the oil cylinder shell 1 in a sealing way, a detection hole 4 which is opened towards the connecting part of a piston 3 is arranged in an oil cylinder rod 2, and the waveguide tube extends into the detection hole 4; the induction magnetic ring of the magnetic telescopic displacement sensor is inlaid on the inner wall of the connecting position of the oil cylinder rod 2 corresponding to the piston 3, the waveguide tube generates a certain induction magnetic field through current pulse, when the induction magnetic ring moves relative to the waveguide tube, the induction magnetic fields at different positions of the waveguide tube are influenced, further strain mechanical wave pulse signals brought by magnetic force are generated in the waveguide tube, the strain mechanical wave pulse signals are received by a host machine at the rear end, and the corresponding positions of the induction magnetic ring are detected;
as shown in fig. 1, a front end connecting seat 11 is fixed at the front end of an oil cylinder shell 1, the front end connecting seat 11 is of an annular frame structure, the tail end of the front end connecting seat 11 is sleeved at the front end of the oil cylinder shell 1, an adapter ring 13 is integrally fixed on the outer wall of the oil cylinder shell 1, the front end connecting seat 11 is fixedly connected with the adapter ring 13 through a flange, and an oil cylinder rod cleaning mechanism is connected in the front end connecting seat 11;
as shown in fig. 1 and 2, a connecting cavity 12 with an annular concave structure is arranged on the inner ring of the front end connecting seat 11; the piston pollution discharge mechanism comprises a guide ring 14, the guide ring 14 and a front end connecting seat 11 are of an integrated structure, a water inlet hole and a water discharge hole are formed in the side wall surface of the guide ring 14, the water inlet hole and the water discharge hole are symmetrically arranged relative to the circle center of the guide ring 14, the water inlet hole comprises a plurality of sub water inlet holes 15 which are linearly arranged along the axis of the guide ring 14 in an array manner, the water discharge hole comprises a plurality of water discharge holes which are linearly arranged along the axis of the guide ring 14 in an array manner, a first outer connecting ring 16 is arranged on the outer wall of the front end connecting seat 11 at the position corresponding to the arrangement position of the water inlet hole and the water discharge hole, as shown in fig. 3, an arc water inlet cavity 19 and a water discharge cavity are respectively arranged on the inner wall of the first outer connecting ring 16, and a water inlet pipe 26 and a water discharge pipe 27 which are respectively communicated with the water inlet cavity 19 and the water discharge cavity are fixedly penetrated on the side wall of the first outer connecting ring 16; annular limiting check rings are arranged at two axial ends of the connecting cavity 12, as shown in fig. 2, the sewage disposal mechanism further comprises guide vanes 24 which are arranged in a linear array along the axis of the guide ring 14, the guide vanes 24 are arranged between the limiting check rings, the guide vanes 24 are of annular structures, the annular outer ring of the guide vanes 24 is in contact with the inner wall of the guide ring 14, the annular inner ring of the guide vanes 24 is in clearance fit with the outer wall of the oil cylinder rod 2, guide gaps are arranged between adjacent guide vanes 24, and the radial two ends of each guide gap are respectively communicated with corresponding water diversion holes 15 and water diversion holes; a supporting frame 25 is arranged between adjacent guide vanes 24, the supporting frame 25 comprises a supporting ring 30 in clearance fit with the oil cylinder rod 2, the width of the supporting ring 30 is smaller than the clearance between the adjacent guide vanes 24, a plurality of supporting blocks 32 clamped between the adjacent guide vanes 24 are annularly arranged on the supporting ring 30 in an array manner, and the supporting blocks 32 and the supporting ring 30 are fixed through connecting ribs 31;
a water inlet pipe 26 and a water outlet pipe 27 are connected to the circulating filtration waterway system and are provided with water pressure by a circulating water pump; the high-pressure water flow enters from the water inlet pipe 26 at the top end, after being split through the water inlet cavity 19, the high-speed water flow entering from the water inlet cavity 15 can evenly flow into each water inlet hole 15, then the high-speed water flow entering from the water inlet holes 15 can form strip-shaped high-speed water flow between the adjacent guide plates 24, the high-speed water flow can impact the wall surface of the oil cylinder rod 2 at the corresponding position to clean the wall surface of the oil cylinder rod 2, most of massive dirt can be separated from the surface of the oil cylinder rod 2 under the interference of the guide plates 24, the rest dirt with the diameter smaller than the fit clearance between the guide plates 24 and the oil cylinder rod 2 can be taken away under the impact of the water flow, and finally discharged from the water outlet holes at the bottom, after being converged through the water outlet cavity, the water flow enters into the filtering mechanism, and is circulated again through the water pump after being filtered to a certain degree, so that the surface of the piston 3 rod has higher cleanliness, the inner support frames 25 as shown in fig. 4 can separate the pollutants on the surface of the piston 3 rod, and meanwhile, the support rings 30 of the inner rings can separate the surface of the piston 3, the pollutants, and the rest of the inner rings can be separated under the interference of the guide plates, the influence of the interference of the guide plates 32, the influence of the water flow can be guaranteed, and the stability of the adjacent guide plates 24 can not be reduced, and the water flow rate caused by the water flow can be greatly leaked out due to the guide plates 24.
The cylinder rod blowing mechanism is arranged at the rear end of the connecting cavity 12 corresponding to the piston pollution discharge mechanism as shown in fig. 1 and 2; the cylinder rod blowing mechanism comprises an annular drying cavity which is arranged at one side of the connecting cavity 12 facing the sealing block 10, a second outer connecting ring 17 is sleeved outside the front end connecting seat 11, an air inlet groove and an air outlet groove are respectively arranged at two radial end parts of the second outer connecting ring 17, an air inlet pipe 28 is connected to the air inlet groove in a penetrating manner, an air outlet pipe 29 is connected to the air outlet groove in a penetrating manner, a plurality of air inlet holes 23 and air outlet holes are arranged at the front end connecting seat 11 in an array manner corresponding to the arrangement positions of the air inlet groove and the air outlet groove, and the air inlet holes 23 and the air outlet holes are communicated with the drying cavity; the air inlet pipe 28 is connected to the air pump, and the air outlet pipe 29 is connected to the water-vapor separation valve; the drying mechanism is introduced with high-speed air flow through the air inlet pipe 28, after the air is diffused through the air inlet groove, the high-speed air flow can be quickly blown to the surface of the oil cylinder rod 2 to separate the residual attachments and moisture on the surface of the oil cylinder rod 2, the wet air flow generated after separation is converged again through the air outlet groove and is led out through the air outlet pipe 29, and the led air flow is filtered and dried through the water-vapor separation valve and then flows back into the air pump again, and enters the drying cavity again through the air inlet pipe 28.
As shown in fig. 2, in order to facilitate the fixation of the first outer connecting ring 16 and the second outer connecting ring 17, a sealing baffle ring 18 is arranged on the outer wall of the rear end of the front end connecting seat 11, the sealing baffle ring 18 is fixedly connected with the first outer connecting ring 16 through a flange, one axial side of the first outer connecting ring 16 is in sealing contact with the sealing baffle ring 18, and a first sealing bulge loop in sealing contact with the outer wall of the front end connecting seat 11 is arranged at the other axial end of the first outer connecting ring 16; the other axial end of the second outer connecting ring 17 is fixedly connected with the sealing baffle ring 18 through a flange, one axial side of the second outer connecting ring 17 is in sealing contact with the sealing baffle ring 18, and the other axial end of the second outer connecting ring 17 is provided with a second sealing bulge loop in sealing contact with the outer wall of the front end connecting seat 11; the first outer connecting ring 16 is fixedly installed through the outer flange structure, and maintainability is improved compared with welded fixation.
As shown in fig. 2, two groups of limiting retainers in the connecting cavity 12 are a front limiting retainer 20 and a rear limiting retainer 21 respectively; a plurality of supporting ribs 22 are annularly arranged on one axial end of the rear limit retainer ring 21 in an array manner, the supporting ribs 22 are used for being in contact with the axial tail end of the connecting cavity 12, and the other axial end of the rear limit retainer ring 21 is in contact with the guide vane 24; the front end of the front end connecting seat 11 is fixedly connected with a front end pressing ring through a flange, the axial front end of the connecting cavity 12 is positioned on the end face of one axial end of the front end pressing ring, and the front limit retainer ring 20 is contacted with one axial end face of the front end pressing ring; the support rib 22 on the rear limit check ring 21 provides a better flowing space for high-speed air flow of the oil cylinder rod blowing mechanism while ensuring that the rear limit check ring 21 is in stable contact with the inside of the front end connecting seat 11, and the front limit check ring 20 at the front end is supported by the front end pressing ring fixed by the flange, so that the front limit check ring 20 and the guide vane 24 are easier to detach and maintain; the inner rings of the front limiting retainer ring 20 and the rear limiting retainer ring are respectively provided with an extension ring used for being in contact with the guide vane 24, the extension rings can promote the contact area between the limiting retainer ring and the guide vane 24, the supporting effect of the guide vane is improved, and the possibility that the guide vane 24 deforms due to high-pressure water flow is reduced.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. A high precision displacement cylinder for municipal sewage treatment, comprising:
the oil cylinder assembly comprises an oil cylinder shell (1) and an oil cylinder rod (2), a piston (3) is fixedly sleeved at the end part of the oil cylinder rod (2), and the piston (3) is in sliding sealing connection with the inner wall of the oil cylinder shell (1); the front end of the oil cylinder shell (1) is provided with a sealing block (10), and the oil cylinder rod (2) passes through the sealing block (10) and is in sliding sealing connection with the sealing block (10); a first hydraulic connector (8) is arranged on the inner wall of the front end of the oil cylinder shell (1), and a second hydraulic connector (9) is arranged at the tail end of the rear shell;
it is characterized by also comprising:
the displacement sensor comprises a distance sensor (5) fixedly connected to the tail end of the oil cylinder shell (1), a distance probe (7) extending into the oil cylinder shell (1) is arranged at the front end of the distance sensor (5), a detection hole (4) which is opened towards the fixed position of the piston (3) is arranged in the oil cylinder rod (2), and the distance probe (7) extends into the detection hole (4);
the front end connecting seat (11), the front end connecting seat (11) is of an annular frame structure, and the tail end of the front end connecting seat (11) is sleeved at the front end of the oil cylinder shell (1);
the inner ring of the front end connecting seat (11) is provided with a connecting cavity (12) with an annular concave structure; the oil cylinder rod pollution discharge mechanism comprises a guide ring (14), the guide ring (14) and a front end connecting seat (11) are of an integrated structure, a water inlet hole and a water discharge hole are formed in the side wall surface of the guide ring (14), the water inlet hole and the water discharge hole are symmetrically arranged relative to the circle center of the guide ring (14), the water inlet hole comprises a plurality of water inlet sub-holes (15) which are arranged in a linear array along the axis of the guide ring (14), the water discharge hole comprises a plurality of water outlet sub-holes which are arranged in a linear array along the axis of the guide ring (14), a first outer connecting ring (16) is arranged at the arrangement position of the outer wall of the front end connecting seat (11) corresponding to the water inlet hole and the water discharge hole, an arc-shaped water inlet cavity (19) and a cambered water discharge cavity are respectively arranged at the arrangement position of the inner wall of the first outer connecting ring (16), and a water inlet pipe (26) and a water discharge pipe (27) which are respectively communicated with the water inlet cavity (19) and the water discharge cavity are fixedly penetrated on the side wall of the first outer connecting ring (16); annular limiting check rings are arranged at two axial ends of the connecting cavity (12), the oil cylinder rod pollution discharge mechanism further comprises guide vanes (24) which are arranged in a linear array along the axis of the guide ring (14), the guide vanes (24) are arranged between the limiting check rings, the guide vanes (24) are of annular structures, an annular outer ring of each guide vane (24) is in contact with the inner wall of the corresponding guide ring (14), an annular inner ring of each guide vane (24) is in clearance fit with the outer wall of the oil cylinder rod (2), guide gaps are arranged between adjacent guide vanes (24), and the radial two ends of each guide gap are respectively communicated with corresponding water dividing and inlet holes (15) and water dividing and drainage holes; a supporting frame (25) is arranged between adjacent guide plates (24), the supporting frame (25) comprises supporting rings (30) which are in clearance fit with the oil cylinder rods (2), the width of each supporting ring (30) is smaller than the clearance between the adjacent guide plates (24), a plurality of supporting blocks (32) clamped between the adjacent guide plates (24) are annularly arranged on each supporting ring (30) in an array manner, and the supporting blocks (32) are fixed with the supporting rings (30) through connecting ribs;
wherein, the water inlet pipe (26) and the water outlet pipe (27) are connected to the circulating filtration waterway system.
2. The high-precision displacement oil cylinder for urban sewage treatment according to claim 1, which is characterized in that: the rear end of the connecting cavity (12) corresponding to the oil cylinder rod pollution discharge mechanism is also provided with an oil cylinder rod blowing mechanism; the oil cylinder rod blowing mechanism comprises an annular drying cavity which is arranged at one side of the connecting cavity (12) facing the sealing block (10), a second outer connecting ring (17) is sleeved outside the front end connecting seat (11), an air inlet groove and an air outlet groove are respectively arranged at two radial end parts of the second outer connecting ring (17), an air inlet pipe (28) is connected to the air inlet groove in a penetrating manner, an air outlet pipe (29) is connected to the air outlet groove in a penetrating manner, a plurality of air inlet holes (23) and air outlet holes are arranged at the arrangement positions of the front end connecting seat (11) corresponding to the air inlet groove and the air outlet groove in an array manner, and the air inlet holes (23) and the air outlet holes are communicated with the drying cavity; the air inlet pipe (28) is connected to the air pump, and the air outlet pipe (29) is connected to the water-vapor separation valve.
3. The high-precision displacement oil cylinder for urban sewage treatment according to claim 2, which is characterized in that: a sealing baffle ring (18) is arranged on the outer wall of the rear end of the front end connecting seat (11), the sealing baffle ring (18) is fixedly connected with a first outer connecting ring (16) through a flange, one axial end of the first outer connecting ring (16) is in sealing contact with the sealing baffle ring (18), and a first sealing bulge ring in sealing contact with the outer wall of the front end connecting seat (11) is arranged at the other axial end of the first outer connecting ring (16).
4. A high-precision displacement cylinder for municipal sewage treatment according to claim 3, wherein: the axial end of the second outer connecting ring (17) is fixedly connected with the sealing baffle ring (18) through a flange, the axial end of the second outer connecting ring (17) is in sealing contact with the sealing baffle ring (18), and the second sealing bulge ring which is in sealing contact with the outer wall of the front end connecting seat (11) is arranged at the other axial end of the second outer connecting ring (17).
5. The high-precision displacement oil cylinder for urban sewage treatment according to claim 1, which is characterized in that: the two groups of limiting check rings in the connecting cavity (12) are respectively a front limiting check ring (20) and a rear limiting check ring (21); a plurality of supporting ribs (22) are annularly arranged on one axial end of the rear limit retainer ring (21), the supporting ribs (22) are used for contacting with the axial tail end of the connecting cavity (12), and the other axial end of the rear limit retainer ring (21) is contacted with the guide vane (24); the front end of the front end connecting seat (11) is fixedly connected with a front end pressing ring through a flange, the axial front end of the connecting cavity (12) is positioned on the end face of one axial end of the front end pressing ring, and the front limit retainer ring (20) is in contact with one axial end face of the front end pressing ring.
6. The high-precision displacement oil cylinder for urban sewage treatment according to claim 5, which is characterized in that: an adapter ring (13) is integrally fixed on the outer wall of the oil cylinder shell (1), and the front end connecting seat (11) is fixedly connected with the adapter ring (13) through a flange.
7. The high-precision displacement oil cylinder for urban sewage treatment according to claim 5, which is characterized in that: the inner rings of the front limiting retainer ring (20) and the rear limiting retainer ring are respectively provided with an extension ring used for being in contact with the guide vane (24).
8. The high-precision displacement oil cylinder for urban sewage treatment according to claim 1, which is characterized in that: the displacement sensor is a magnetic telescopic displacement sensor, a waveguide tube of the magnetic telescopic displacement sensor is arranged in the distance probe (7), and an induction magnetic ring of the magnetic telescopic displacement sensor is inlaid on the inner wall of the connecting position of the oil cylinder rod (2) corresponding to the piston (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310728874.8A CN116464690B (en) | 2023-06-20 | 2023-06-20 | Be used for urban sewage treatment high accuracy displacement hydro-cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310728874.8A CN116464690B (en) | 2023-06-20 | 2023-06-20 | Be used for urban sewage treatment high accuracy displacement hydro-cylinder |
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| Publication Number | Publication Date |
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| CN116464690A CN116464690A (en) | 2023-07-21 |
| CN116464690B true CN116464690B (en) | 2023-08-18 |
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|---|---|---|---|---|
| GB1448530A (en) * | 1974-01-07 | 1976-09-08 | Caterpillar Tractor Co | Hydraulic cylinder rod sealing and flushing arrangement |
| CN112240325A (en) * | 2020-10-14 | 2021-01-19 | 湖北迈可瑞橡塑有限公司 | Sealing element for shield machine |
| CN214465245U (en) * | 2021-03-12 | 2021-10-22 | 江苏恒立液压股份有限公司 | Oil cylinder with mechanical displacement sensor |
| CN216478144U (en) * | 2021-12-06 | 2022-05-10 | 无锡君帆科技有限公司 | Hydraulic cylinder with piston rod displacement detects function |
| CN217440406U (en) * | 2021-12-25 | 2022-09-16 | 苏州帕蒂克液压设备有限公司 | Dustproof hydraulic oil cylinder for garbage discharge door |
| CN115949693A (en) * | 2022-12-13 | 2023-04-11 | 浙江方泰汽车配件有限公司 | Impeller energy-feedback type damping rod |
-
2023
- 2023-06-20 CN CN202310728874.8A patent/CN116464690B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1448530A (en) * | 1974-01-07 | 1976-09-08 | Caterpillar Tractor Co | Hydraulic cylinder rod sealing and flushing arrangement |
| CN112240325A (en) * | 2020-10-14 | 2021-01-19 | 湖北迈可瑞橡塑有限公司 | Sealing element for shield machine |
| CN214465245U (en) * | 2021-03-12 | 2021-10-22 | 江苏恒立液压股份有限公司 | Oil cylinder with mechanical displacement sensor |
| CN216478144U (en) * | 2021-12-06 | 2022-05-10 | 无锡君帆科技有限公司 | Hydraulic cylinder with piston rod displacement detects function |
| CN217440406U (en) * | 2021-12-25 | 2022-09-16 | 苏州帕蒂克液压设备有限公司 | Dustproof hydraulic oil cylinder for garbage discharge door |
| CN115949693A (en) * | 2022-12-13 | 2023-04-11 | 浙江方泰汽车配件有限公司 | Impeller energy-feedback type damping rod |
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| CN116464690A (en) | 2023-07-21 |
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