CN116928172B - Hydraulic cylinder high-pressure protection device - Google Patents
Hydraulic cylinder high-pressure protection device Download PDFInfo
- Publication number
- CN116928172B CN116928172B CN202310960108.4A CN202310960108A CN116928172B CN 116928172 B CN116928172 B CN 116928172B CN 202310960108 A CN202310960108 A CN 202310960108A CN 116928172 B CN116928172 B CN 116928172B
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- Prior art keywords
- hydraulic cylinder
- seats
- cylinder main
- main body
- hydraulic
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- 238000001816 cooling Methods 0.000 claims abstract description 103
- 239000000428 dust Substances 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000010720 hydraulic oil Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 24
- 239000000306 component Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1485—Special measures for cooling or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
Abstract
The invention discloses a high-pressure protection device for a hydraulic cylinder, which relates to the technical field of hydraulic cylinders and comprises a hydraulic cylinder main body, wherein a connector is arranged at the output end of the hydraulic cylinder main body, mounting seats are fixedly sleeved at the bottom and the top of the hydraulic cylinder main body, overflow valves are arranged on one side of each mounting seat at the bottom, the input ends of the overflow valves penetrate through the corresponding mounting seats and are communicated with a hydraulic cavity of the hydraulic cylinder main body, the contact with the hydraulic cavity of the hydraulic cylinder main body where hydraulic oil is positioned is always ensured, so that accurate cooling is automatically captured in real time, a hairbrush is arranged on the hydraulic cylinder main body, a filter screen can intercept and filter dust entering an air cooling system along with low-temperature air, but the dust remains on the surface of the filter screen, the filter hole is gradually blocked, the filtering effect of the filter screen is gradually reduced, and the whole cooling assembly and the fixed hairbrush are mutually scraped and rubbed during reciprocating lifting movement, so that dust and impurities in the originally blocked filter hole are cleaned out.
Description
Technical Field
The invention relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder high-pressure protection device.
Background
The hydraulic cylinder is one of main actuating mechanisms of a hydraulic system, is widely applied to the fields of machine tool industry, metallurgical industry, automobile industry, light spinning industry, engineering machinery, agricultural machinery and the like, and is required to be accurately controlled in the fields of supporting and horizontal angle adjustment of the mechanism through the hydraulic cylinder, the hydraulic cylinder is required to be locked after moving to a designated position, the locking of the hydraulic cylinder is ensured through a hydraulic lock in most of the current hydraulic systems, when the hydraulic cylinder moves to the designated position, the hydraulic pump stops oil supply, the hydraulic lock is closed, and closed cavities are formed at two sides of a piston of the hydraulic cylinder. When the ambient temperature rises, the hydraulic oil is expanded, high pressure is formed in the closed cavity of the hydraulic cylinder, and the hydraulic pipeline is damaged seriously.
The beneficial effects of the specification of the patent publication No. CN110645225B are described in the specification section "
(1) The protection device has a simple structure, can be directly mounted on a hydraulic cylinder control valve block, omits an overflow valve and an overflow pipeline, and simplifies a hydraulic system;
(2) The proportion of the acting areas of the first piston and the second piston is related to the acting areas of a rod cavity and a rodless cavity of the hydraulic cylinder, the proportion of oil leakage of oil cavities at two ends of the hydraulic cylinder is accurately controlled, the single-side deviation of the position of the piston in the hydraulic cylinder after oil leakage is not more than 1mm, and the position accuracy of the hydraulic cylinder is ensured;
(3) The protection device is communicated with the oil cavity of the hydraulic cylinder through the throttling hole, hydraulic oil flows to the protection device through the throttling hole, so that the instantaneous flow entering the protection device is prevented from being too large, and the system damping is increased;
the most fundamental reason for forming high pressure in the sealed cavity of the hydraulic cylinder is that the temperature is increased, the environment temperature is increased only by wrapping, the basic temperature of hydraulic oil is too high, although the overflow quantity of the overflow valve can be accurately controlled by the authorized invention, the overflow quantity of the overflow valve can be avoided, the expansion of the hydraulic oil can be avoided, the high pressure formed in the sealed cavity of the hydraulic cylinder can be avoided, and therefore a hydraulic pipeline is protected, the condition is not cured, the overflow valve is frequently started due to the too high temperature, the related accurate control system is also required to be frequently started and closed, and the damage to the accurate control system is easily caused for a long time.
Disclosure of Invention
The invention aims to provide a high-pressure protection device for a hydraulic cylinder, which aims to solve the technical problems in the background art.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a pneumatic cylinder high pressure protection device, includes the pneumatic cylinder main part, the output installation connector of pneumatic cylinder main part, the bottom and the equal fixed cover in top of pneumatic cylinder main part are equipped with the mount pad, and mount pad one side that is located the bottom is provided with the overflow valve, the input of overflow valve passes the hydraulic cavity intercommunication setting that corresponds mount pad and pneumatic cylinder main part, the both sides of pneumatic cylinder main part all set up a section of thick bamboo, two all slide in the section of thick bamboo and be provided with the inserted bar, two the connecting mechanism is all installed to the opposite one side of inserted bar, two the half cooling shell of end all installation of connecting mechanism, two half cooling shell concatenation forms whole cooling shell, whole cooling shell suit is at the outer section of thick bamboo wall of pneumatic cylinder main part, two brushes are installed to the outer barrel wall symmetry of pneumatic cylinder main part, two the brush all is attached on half cooling shell's lateral wall.
As a further scheme of the invention: the output end of the hydraulic cylinder main body is provided with a piston rod, one end of the piston rod extends into the hydraulic cavity of the hydraulic cylinder main body, and the other end of the piston rod is vertically and fixedly provided with a connector.
As a further scheme of the invention: the hydraulic cylinder is characterized in that the top ends of the mounting seats are respectively provided with a mounting hole through which the bottom ends are respectively penetrated, the hydraulic cylinder main body is simultaneously inserted into the two mounting holes in a penetrating manner, the outer diameter of the hydraulic cylinder main body is consistent with the inner diameters of the two mounting holes, four corners of the top end of the mounting seat are respectively provided with a long rod screw in a threaded manner, the top ends of the mounting seats are respectively provided with two T-shaped slots, the lengths of the T-shaped slots are smaller than the thickness of the corresponding mounting seat, the side wall of the mounting seat is fixedly provided with an oil storage box, the top end of the oil storage box is fixedly provided with an overflow valve, the output end of the overflow valve is communicated with the inner cavity of the oil storage box, an oil return pump is arranged in the inner cavity of the oil storage box, and the output end of the oil return pump is communicated with the hydraulic cavity of the hydraulic cylinder main body, and the output end of the oil return pump is provided with a one-way drain valve in the communicating position of the hydraulic cavity of the hydraulic cylinder main body.
As a further scheme of the invention: two synchronous drive mechanisms are all installed to the both sides of pneumatic cylinder main part, two synchronous drive mechanism all includes two fixing bases, four fixing bases are perpendicular fixed mounting respectively at the lateral wall that corresponds the mount pad, two the equal perpendicular fixed mounting fixing base in both ends of a section of thick bamboo, two the chamber of inserting has all been seted up to a section of thick bamboo one end, two the inner chamber wall of inserting the chamber runs through the urceolus wall that corresponds a section of thick bamboo and has seted up smooth chamber, two insert the intracavity and have all slidingly inserted the inserted bar, two the equal fixed mounting slider in side opposite to the inserted bar, two the slidable mounting that the slider looks is adapted respectively is in the smooth intracavity that corresponds, two the equal perpendicular fixed connection dead lever in side opposite to the inserted bar, two the equal perpendicular fixed mounting in outer pole wall of piston rod in opposite side of dead lever, and be central symmetry distribution about the piston rod.
As a further scheme of the invention: four the mount pad is close to corresponding fixing base one end fixed mounting has T type inserted block, four in the T type inserted groove that corresponds respectively to the T type inserted block, four the equal perpendicular fixed mounting in top of fixing base two fixed blocks, a plurality of equal screw thread installation fastening screw on the fixed block, a plurality of fastening screw is the screw thread is contradicted respectively on the lateral wall of corresponding mount pad.
As a further scheme of the invention: the connecting mechanism comprises fixing seats, one ends of the fixing seats are far away from each other, the fixing seats are fixedly mounted on one sides of the corresponding sliding blocks respectively, rotating rings are arranged on one ends of the fixing seats in the opposite directions, the rotating rings are close to the first threaded shafts which are fixedly connected to one sides of the corresponding fixing seats vertically, the first threaded shafts are far away from limiting round blocks which are fixedly mounted vertically at the tail ends of the fixing seats, and the first threaded shafts are inserted into the fixing seats in a threaded manner.
As a further scheme of the invention: two spacing chamber has all been seted up in the fixing base, two spacing circle piece rotates respectively and sets up in the spacing intracavity that corresponds, two threaded hole has been seted up to the inner chamber wall in spacing chamber runs through the fixing base tip, two first screw thread axle is threaded respectively and is installed at the threaded hole that corresponds, two rotatory ring keeps away from the equal perpendicular fixed mounting second screw thread axle of corresponding first screw thread axle one end, two the terminal equal screw thread suit thread bush of second screw thread axle, two the thread bush is perpendicular fixed mounting respectively at the lateral wall that corresponds half cooling shell.
As a further scheme of the invention: the inner shell cavity of the half cooling shell is internally embedded with an arc-shaped semiconductor refrigerating sheet, the top end of the arc-shaped semiconductor refrigerating sheet penetrates through the bottom end to form two exhaust holes, the outer arc wall of the arc-shaped semiconductor refrigerating sheet is vertically and fixedly provided with a plurality of metal radiating strips with consistent specification and equidistant distribution, the bottom inner shell cavity at two corners of the half cooling shell is internally embedded with an exhaust fan, the half cooling shell is mutually far away from one side and is internally embedded with a filter screen, and an air supply hose is arranged between the filter screen and the corresponding input end of the two exhaust fans.
As a further scheme of the invention: the exhaust direction of two exhaust fans is the slope upward design, four the clearance is reserved between exhaust hole top and the corresponding half cooling shell inner chamber top, two the air exit has all been seted up to half cooling shell's lower bottom through the inner shell chamber, two the air exit respectively with two exhaust hole intercommunication settings that correspond, two the equal perpendicular fixed mounting in both ends of half cooling shell butt joint piece, two parallel screw thread suit bolts between the butt joint piece.
As a further scheme of the invention: the cleaning mechanism is installed on the outer cylinder wall of the hydraulic cylinder main body, the cleaning mechanism comprises strip-shaped seats, the strip-shaped seats are respectively arranged on one side of the corresponding half cooling shell, the strip-shaped seats are close to the corresponding half cooling shell, limiting sliding bars are fixedly installed on one side of the strip-shaped seats, limiting sliding seats are respectively arranged on one side of the limiting sliding bars, limiting sliding grooves are respectively formed in one side of the limiting sliding seats, the limiting sliding bars are respectively inserted into the corresponding limiting sliding grooves in a sliding manner, brushes are fixedly installed on the opposite sides of the limiting sliding seats, L-shaped supporting rods are vertically and fixedly installed on the lower bottoms of the strip-shaped seats, and the tail ends of the L-shaped supporting rods are vertically and fixedly installed on the outer cylinder wall of the hydraulic cylinder main body.
Compared with the prior art, the invention has the beneficial effects that:
1. the outer cylinder wall of the hydraulic cylinder main body is sleeved with two half cooling shells, the two half cooling shells are assembled into an integral cooling shell, the integral cooling shell is sleeved on the outer cylinder wall of the hydraulic cylinder main body, a semiconductor refrigerating sheet is arranged in the integral cooling shell, a metal radiating strip is arranged at the back of the semiconductor refrigerating sheet, fans are arranged at two inclined corners of the semiconductor refrigerating sheet, the fans are aligned to a plurality of metal radiating strips, and heat generated on the metal radiating strips is taken out by utilizing air flow through an exhaust hole reserved on the semiconductor refrigerating sheet;
2. the whole cooling assembly is assembled with the inserted link through the connecting mechanism, the inserted link is slidably mounted in the corresponding shaft barrel, the top of the inserted link is connected with the outer rod wall of the piston rod through the fixed link, the piston rod reciprocates along with the change of the hydraulic cavity in the hydraulic cylinder main body, therefore, when the piston rod drives the top connector to move up and down, the cooling assembly is driven to reciprocate up and down on the outer cylinder wall of the hydraulic cylinder main body, the contact part with the outer cylinder wall of the hydraulic cylinder main body is regulated, the contact part with the hydraulic cavity of the hydraulic cylinder main body where hydraulic oil is located is always ensured, thereby realizing real-time automatic accurate cooling, and the brushes are mounted on the hydraulic cylinder main body, the surfaces of the filter screens at the air inlets of the two cooling assemblies are respectively attached to each other, the filter screens can intercept and filter dust entering an air cooling system along with low-temperature air, but the dust is enabled to remain on the surfaces of the filter screens, the filter holes are gradually blocked, the filtering effect of the filter screens is gradually reduced, and the whole cooling assembly can be mutually scraped with the fixed brushes during the reciprocating lifting movement, so that the blocked dust and the blocked filter holes and the impurities in the filter holes are always cleaned out, thereby realizing synchronous cleaning, and the characteristics of convenient use are realized;
3. the cooling component is assembled by the two half cooling shells, the two half cooling shells are assembled and connected with the corresponding inserting rods through the connecting mechanism, the shaft barrel inserted by the inserting rods is arranged between the corresponding two fixing seats, the two fixing seats are inserted into the T-shaped slots of the corresponding mounting seats through the T-shaped inserting blocks, the limit sliding seat arranged on the hairbrush is in sliding insertion fit with the corresponding strip-shaped seats, and the whole core component is convenient to detach, replace and maintain and further has the characteristic of convenience in use.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a mounting base according to the present invention;
FIG. 3 is a schematic diagram of a synchronous drive mechanism according to the present invention;
FIG. 4 is a schematic view of the mounting structure of the plunger and the barrel of the present invention;
FIG. 5 is a schematic view of the structure of the connecting mechanism of the present invention;
FIG. 6 is a schematic top view of a half cooling shell of the present invention;
FIG. 7 is a schematic view of the internal structure of the half-shell cooling shell of the present invention;
FIG. 8 is a schematic view of a cleaning mechanism according to the present invention.
In the figure: 1. a hydraulic cylinder main body; 11. a piston rod; 12. a connector; 2. a mounting base; 21. a mounting hole; 22. a T-shaped slot; 23. a long rod screw; 24. an oil storage box; 25. an overflow valve; 3. a synchronous transmission mechanism; 31. a connecting seat; 32. a T-shaped insert block; 33. a fixed block; 34. a fastening screw; 35. a shaft cylinder; 36. a sliding cavity; 37. a rod; 38. a fixed rod; 39. a slide block; 4. a connecting mechanism; 41. a fixing seat; 42. a spacing cavity; 43. a threaded hole; 44. a rotating ring; 45. a first threaded shaft; 46. limiting round blocks; 47. a second threaded shaft; 48. a thread sleeve; 5. a half cooling shell; 51. arc semiconductor refrigerating plate; 52. an exhaust hole; 53. a metal heat sink strip; 54. an exhaust fan; 55. an air inlet; 56. a filter screen; 57. an air supply hose; 58. a butt joint block; 59. a bolt; 6. a cleaning mechanism; 61. a strip-shaped seat; 62. a limit slide bar; 63. a limit sliding seat; 64. limiting sliding grooves; 65. a brush; 66. l-shaped supporting rods.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-8, a hydraulic cylinder high-pressure protection device comprises a hydraulic cylinder main body 1, wherein a connector 12 is arranged at the output end of the hydraulic cylinder main body 1, a mounting seat 2 is fixedly sleeved at the bottom and the top of the hydraulic cylinder main body 1, an overflow valve 25 is arranged at one side of the mounting seat 2 positioned at the bottom, the overflow valve 25 can open the valve beyond target pressure to discharge hydraulic oil, and close the valve when the pressure is lower than the target pressure, so that hydraulic oil cannot leak, the input end of the overflow valve 25 passes through the corresponding mounting seat 2 and is communicated with a hydraulic cavity of the hydraulic cylinder main body 1, shaft barrels 35 are arranged at two sides of the hydraulic cylinder main body 1, inserting rods 37 are arranged in the two shaft barrels 35 in a sliding manner, connecting mechanisms 4 are arranged at opposite sides of the two inserting rods 37, the two ends of the two connecting mechanisms 4 are respectively provided with a half cooling shell 5, the two half cooling shells 5 are spliced to form an integral cooling shell, the integral cooling shell is sleeved on the outer cylinder wall of the hydraulic cylinder main body 1, the inner diameter of the integral cooling shell is consistent with the outer diameter of the hydraulic cylinder main body 1, leakage cannot be ensured, the loss cannot be reduced, the loss can be improved, the two half cooling shells 65 are symmetrically arranged on the two half cooling shells 65 of the outer cylinder main body and the two side walls 65 are attached to the side walls of the hydraulic brush body 65;
as shown in fig. 1-2, particularly, a piston rod 11 is installed at the output end of a hydraulic cylinder main body 1, one end of the piston rod 11 extends into a hydraulic cavity of the hydraulic cylinder main body 1, linear reciprocating movement of the piston rod 11 is realized by adjusting the volume of hydraulic oil in the hydraulic cavity, a connector 12 is vertically and fixedly installed at the other end of the piston rod 11, the assembly and butt joint with other mechanical structures are convenient, mounting holes 21 are formed in the top ends of two mounting seats 2, the hydraulic cylinder main body 1 is simultaneously inserted into the two mounting holes 21 in a penetrating manner, the outer diameter of the hydraulic cylinder main body 1 is consistent with the inner diameters of the two mounting holes 21, firm and difficult loosening of sleeving is ensured, long rod screws 23 are installed at four corners of the top end of a mounting seat 2 positioned below conveniently, the hydraulic cylinder main body 1 can be stably and vertically placed, two T-shaped slots 22 are formed in the top ends of the two mounting seats 2, the lengths of the two T-shaped slots 22 are smaller than the thickness of the corresponding mounting seat 2, the plug bush structure cannot fall down and can only be reversely pulled out, an oil storage box 24 is fixedly mounted on the side wall of the mounting seat 2 below, an overflow valve 25 is fixedly mounted on the top end of the oil storage box 24, high-pressure overflowed oil is discharged into the oil storage box 24 by the overflow valve 25, the output end of the overflow valve 25 is communicated with the inner cavity of the oil storage box 24, an oil return pump is mounted in the inner cavity of the oil storage box 24, the oil return pump can complete the cyclic use of hydraulic oil, the output end of the oil return pump is communicated with the hydraulic cavity of the hydraulic cylinder main body 1, and a one-way drain valve is mounted at the communication position of the output end of the oil return pump and the hydraulic cavity of the hydraulic cylinder main body 1, so that reverse backflow of the hydraulic oil is avoided;
as shown in fig. 3-4, more particularly, two synchronous transmission mechanisms 3 are installed on two sides of the hydraulic cylinder main body 1, the two synchronous transmission mechanisms 3 comprise two connecting seats 31, four connecting seats 31 are respectively and vertically and fixedly installed on the outer side walls of the corresponding installation seats 2, two ends of two shaft cylinders 35 are respectively and vertically fixedly installed with the connecting seats 31, one ends of the two shaft cylinders 35 are respectively provided with a sliding cavity 36, the inner cavity walls of the two sliding cavities penetrate through the outer cylinder walls of the corresponding shaft cylinders 35, the two sliding cavities are respectively and slidingly inserted with a inserted rod 37, the cross section of the inserted rod 37 is completely consistent with the cross section specification of the sliding cavity, the sliding stability is ensured, one opposite sides of the two inserted rods 37 are fixedly provided with sliding blocks 39, the two sliding blocks 39 are respectively and adaptively installed in the corresponding sliding cavities 36, the width of the sliding blocks 39 is consistent with the cavity width of the sliding cavity 36, the sliding stability is ensured, the fixing rods 38 are vertically and fixedly connected to the opposite sides of the two inserting rods 37, the opposite sides of the two fixing rods 38 are vertically and fixedly arranged on the outer rod wall of the piston rod 11, the fixing rods are distributed in a central symmetry manner relative to the piston rod 11, the mounting stress is ensured to be stable, the T-shaped inserting blocks 32 are fixedly arranged at one ends of the four mounting seats 2 close to the corresponding connecting seats 31, the four T-shaped inserting blocks 32 are respectively inserted into the corresponding T-shaped inserting grooves 22, the dismounting and the taking out are convenient, the two fixing blocks 33 are vertically and fixedly arranged at the top ends of the four connecting seats 31, the fastening screws 34 are respectively arranged on the screw threads of the fixing blocks 33, and the fastening screws 34 are respectively in threaded contact with the outer side walls of the corresponding mounting seats 2, so that the T-shaped inserting blocks 32 are firmly inserted into the T-shaped inserting grooves 22 and are not easy to fall off;
as shown in fig. 5, particularly, the two connecting mechanisms 4 comprise fixing seats 41, one ends of the two fixing seats 41 far away from each other are fixedly installed with one side of the corresponding sliding block 39 respectively, one ends of the two fixing seats 41 facing each other are provided with rotating rings 44, the surfaces of the rotating rings 44 are provided with a plurality of anti-slip protruding points, friction resistance is increased, the hands are prevented from being taken off, one sides of the two rotating rings 44 close to the corresponding fixing seats 41 are vertically and fixedly connected with first threaded shafts 45, the ends of the first threaded shafts 45 far away from the fixing seats 41 are vertically and fixedly provided with limiting round blocks 46, the two first threaded shafts 45 are in threaded insertion in the fixing seats 41, limiting cavities 42 are formed in the two fixing seats 41, the two limiting round blocks 46 are respectively and rotatably arranged in the corresponding limiting cavities 42, so that the first threaded shafts 45 are always in the corresponding fixing seats 41, the inner cavity walls of the two limiting cavities 42 are indirectly prevented from falling off all the time, threaded holes 43 are formed in the inner cavity walls of the two limiting cavities 42, the two first threaded shafts 45 are respectively in threaded holes 43, the two first threaded shafts 45 are in threaded holes 48 are respectively in threaded correspondence to the two vertical mounting half-shafts 45, and the two ends of the two rotating rings 44 are in the corresponding threaded holes 48, and the two first threaded shafts 45 are in the threaded shafts 48 are in threaded communication with the corresponding half-threaded shafts 48, and are in the threaded shafts 48 of the threaded shafts 45 and are in threaded communication with the corresponding fixing shafts and are in the threaded communication respectively, and are in the threaded communication with the threaded boxes of the threaded boxes and are in the threaded communication between the two and are in the threaded connection;
as shown in fig. 6-7, particularly, the inner shell cavities of the two semi-body cooling shells 5 are embedded and installed with arc-shaped semiconductor cooling plates 51, the contact area between the arc-shaped semiconductor cooling plates 51 and the outer wall of the hydraulic cylinder main body 1 is large, the cooling effect is better, two exhaust holes 52 are formed in the top ends and the bottom ends of the two arc-shaped semiconductor cooling plates 51, the air cooling passage is ensured to be smooth, the outer arc walls of the two arc-shaped semiconductor cooling plates 51 are vertically and fixedly provided with a plurality of metal cooling strips 53 with consistent specification and equidistant distribution, the metal cooling strips 53 can concentrate heat on the necessary path of the air cooling air flow, the heat is conveniently taken away, exhaust fans 54 are embedded and installed in the bottom inner shell cavities at the two corners of the two semi-body cooling shells 5, the far side of the two semi-body cooling shells 5 is embedded and installed with filter screens 56, the surfaces of the filter screens 56 are flush with the back surfaces of the corresponding semi-body cooling shells 5, the air supply hoses 57 are arranged between the two filter screens 56 and the input ends of the two corresponding exhaust fans 54, the exhaust directions of the two exhaust fans 54 are designed obliquely upwards, the heat is conveniently blown away, gaps are reserved between the top ends of the four exhaust holes 52 and the cavity tops of the inner cavities of the corresponding half cooling shells 5, so that the air flow can be converged, the lower bottoms of the two half cooling shells 5 are provided with exhaust ports through the inner cavities, the entry of water vapor is avoided, the two exhaust ports are respectively communicated with the corresponding two exhaust holes 52, the far side of the two half cooling shells 5 is provided with air inlets 55, the filter screens 56 are respectively embedded in the two air inlets 55, the two ends of the two half cooling shells 5 are respectively and fixedly provided with a butt joint block 58, bolts 59 are sleeved between the two parallel butt joint blocks 58 in a threaded manner, the two half cooling shells 5 are conveniently separated, the maintenance and replacement of internal components such as an arc-shaped semiconductor refrigerating plate 51, a metal heat dissipation strip 53, an exhaust fan 54 and the like are facilitated;
as shown in fig. 8, more particularly, the cleaning mechanisms 6 are installed on the outer cylinder wall of the hydraulic cylinder main body 1, the two cleaning mechanisms 6 include strip-shaped seats 61, the two strip-shaped seats 61 are respectively disposed on one side of the corresponding half-body cooling shell 5, the two strip-shaped seats 61 are fixedly installed with a limit sliding seat 62 on one side of the corresponding half-body cooling shell 5, the two limit sliding seats 62 are respectively provided with a limit sliding seat 63, the two limit sliding seats 63 are respectively provided with a limit sliding groove 64 on one side of the corresponding strip-shaped seat 61, the two limit sliding seats 62 are respectively slidably inserted into the corresponding limit sliding grooves 64, the lengths of the limit sliding seat 62 and the limit sliding groove 64 are smaller than those of the corresponding strip-shaped seats 61 and the limit sliding seat 63, the purpose of convenient insertion in place is to prevent the limit sliding seat 62 from falling off from the limit sliding groove 64, the two limit sliding seat 63 are fixedly installed with brushes 65 on one side in opposite directions, the lower bottoms of the two strip-shaped seats 61 are respectively vertically and fixedly installed with L-shaped supporting rods 66, and the tail ends of the two L-shaped supporting rods 66 are respectively vertically and fixedly installed outside the cylinder main body 1.
The working principle of the invention is as follows:
firstly, starting a hydraulic cylinder main body 1, controlling the ingress and egress of hydraulic oil through a hydraulic pump to adjust the hydraulic oil capacity of a hydraulic cavity, further realizing that a piston rod 11 drives a connector 12 to realize piston movement, when the piston rod 11 drives the connector 12 to move to a designated position, locking the connector 12, most of current hydraulic systems ensure the locking of the hydraulic cylinder through a hydraulic lock, when the piston rod 11 drives the connector 12 to move to the designated position, the hydraulic pump stops supplying oil, the hydraulic lock is closed, a closed cavity is formed in a piston cavity in the hydraulic cylinder, and at the moment, the hydraulic oil in the cavity expands due to objective reasons such as overhigh temperature of the hydraulic oil, overhigh ambient temperature or overhigh temperature of a hydraulic cylinder body, so that the hydraulic oil in the closed cavity is increased, and a hydraulic pipeline is damaged in serious cases;
in the second step, two arc-shaped semiconductor refrigerating sheets 51 are started, and the working principle is as follows: when direct current passes through a couple formed by connecting two different semiconductor materials in series, heat can be absorbed and released respectively at two ends of the couple, the aim of refrigeration can be achieved, two arc-shaped semiconductor refrigerating sheets 51 are attached to an inner arc wall close to the outer cylinder wall of the hydraulic cylinder main body 1 to serve as a refrigerating end, the temperature of an outer cylinder wall enclosed space of the covered hydraulic cylinder main body 1 is reduced in a cold-hot contact mode, so that expansion of hydraulic oil in an enclosed cavity is avoided, the pressure in the enclosed cavity is avoided, the problem that high pressure is caused by high temperature is solved from the source, the other ends of the two arc-shaped semiconductor refrigerating sheets 51 serve as heating ends, the heat is transferred to a plurality of metal radiating strips 53 in a cold-hot contact mode, at this time, an exhaust fan 54 is started, external cold air is extracted from a corresponding air inlet 55 through an air supply hose 57, dust and impurities in the air are left in the mesh of the filter screen 56 after the filter screen 56, the low-temperature air normally enters the inner cavity of the semiconductor cooling shell 5 and participates in the air cooling process of the plurality of metal strips 53, the low-temperature air is taken away from the bottom to the upper part, the metal strips are taken away from the bottom and the upper part of the metal strips are discharged to the bottom of the semiconductor cooling shell, the semiconductor cooling shell is cooled by the air cooling air channel is discharged to the top part of the semiconductor cooling shell, and the cooling channel is cooled air channel is formed to the top of the top part of the semiconductor cooling shell cooling channel is cooled air cooling the cooling channel is formed;
third, because the half cooling shell 5 is through the connecting mechanism 4, the depth of the first threaded shaft 45 inserted into the corresponding fixed seat 41 is adjusted by rotating the rotating ring 44, so that the corresponding second threaded shaft 47 is aligned with the corresponding threaded sleeve 48, and then the rotating ring 44 is rotated reversely, so that the second threaded shaft 47 is gradually close to and finally inserted into the corresponding threaded sleeve 48 in a spiral manner, the threaded sleeve 48 is arranged on the back of the corresponding half cooling shell 5, the quick butt joint between the inserted rod and 37 and the half cooling shell 5 is completed, the inserted rod 37 is inserted into the shaft barrel 35, the top is arranged on the outer rod wall of the piston rod 11 through the fixed rod 38, and therefore, when the piston rod 11 drives the top connector 12 to move up and down, the cooling assembly (the half cooling shell 5 and the inner structure thereof) is also driven to slide up and down in a reciprocating manner on the outer cylinder wall of the hydraulic cylinder main body 1, the contact part between the two brushes 65 and the outer cylinder wall of the hydraulic cylinder main body 1 is regulated, the contact between the inner cylinder wall and the outer cylinder wall of the sealed containing cavity where hydraulic oil is located is always ensured to be covered and contacted by the arc-shaped semiconductor refrigerating sheet 51, thus realizing real-time automatic capturing and accurate cooling, and brushes 65 are arranged at two sides of the hydraulic cylinder main body 1, the surfaces of the filter screens 56 of the two cooling component air inlets 55 are respectively attached, the filter screens 56 can intercept and filter dust entering an air cooling system along with low-temperature air, but the dust is left on the surfaces of the filter screens 56, the filter holes are gradually blocked, the filtering effect of the filter screens 56 is gradually reduced, and the whole cooling component can be mutually scraped and rubbed with the fixed brushes 65 during reciprocating lifting movement, so that the dust and impurities in the originally blocked filter meshes are cleaned out, and synchronous cleaning is realized, and the device has the characteristics of convenience in use.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. The utility model provides a pneumatic cylinder high pressure protection device, includes pneumatic cylinder main part (1), output installation connector (12) of pneumatic cylinder main part (1), the bottom and the top of pneumatic cylinder main part (1) are all fixed cover and are installed mount pad (2), are located mount pad (2) one side of bottom and are provided with overflow valve (25), the input of overflow valve (25) passes the hydraulic cavity intercommunication setting that corresponds mount pad (2) and pneumatic cylinder main part (1), a serial communication port, both sides of pneumatic cylinder main part (1) all set up an axle section of thick bamboo (35), two all slide in axle section of thick bamboo (35) are provided with inserted bar (37), two the coupling mechanism (4) are all installed to one side in opposition of inserted bar (37), and half cooling shell (5) are all installed to the end of two coupling mechanism (4), and two half cooling shell (5) splice and form whole cooling shell, whole cooling shell is installed in the urceolus wall of pneumatic cylinder main part (1), the urceolus wall symmetry of pneumatic cylinder main part (1) installs two half cooling shell (65) and attaches on the lateral wall of two half cooling shell (65);
the inner shell cavities of the two half cooling shells (5) are embedded and provided with arc-shaped semiconductor refrigerating sheets (51), the top ends of the two arc-shaped semiconductor refrigerating sheets (51) are penetrated through the bottom ends and provided with two exhaust holes (52), the outer arc walls of the two arc-shaped semiconductor refrigerating sheets (51) are vertically and fixedly provided with a plurality of metal radiating strips (53) with consistent specification and equidistant distribution, the bottom inner shell cavities at two corners of the half cooling shells (5) are embedded and provided with exhaust fans (54), the far side of the two half cooling shells (5) is embedded and provided with filter screens (56), and an air supply hose (57) is arranged between the filter screens (56) and the input ends of the two corresponding exhaust fans (54);
the exhaust direction of the two exhaust fans (54) is designed obliquely upwards, gaps are reserved between the top ends of the four exhaust holes (52) and the top of the inner cavity of the corresponding half cooling shell (5), exhaust ports are formed in the lower bottoms of the two half cooling shells (5) in a penetrating mode and are respectively communicated with the corresponding two exhaust holes (52), air inlets (55) are formed in the far side of the two half cooling shells (5), filter screens (56) are embedded in the two air inlets (55), two ends of the two half cooling shells (5) are vertically and fixedly installed with butt joint blocks (58), and bolts (59) are sleeved between the two butt joint blocks (58) in a threaded mode;
the cleaning mechanism (6) is arranged on the outer cylinder wall of the hydraulic cylinder main body (1), the two cleaning mechanisms (6) comprise strip-shaped seats (61), the two strip-shaped seats (61) are respectively arranged on one side of the corresponding half cooling shell (5), a limiting slide bar (62) is fixedly arranged on one side, close to the corresponding half cooling shell (5), of the two strip-shaped seats (61), a limiting slide seat (63) is arranged on one side, close to the corresponding strip-shaped seat (61), of the two limiting slide seats (63), limiting slide grooves (64) are respectively formed in one side, close to the corresponding strip-shaped seats (61), of the two limiting slide bars (62) in a sliding manner, brushes (65) are respectively and fixedly arranged on one side, opposite to the limiting slide seats (63), of the lower bottoms of the two strip-shaped seats (61) are respectively and fixedly arranged on L-shaped support bars (66), and the tail ends of the two L-shaped support bars (66) are respectively and vertically fixedly arranged on the outer cylinder wall of the hydraulic cylinder main body (1);
the air supply hose (57) is used for extracting external cold air from a corresponding air inlet (55), dust and impurities in the air are remained and intercepted in meshes of the filter screen (56) after being filtered by the filter screen (56), the low-temperature air normally enters the inner cavity of the half cooling shell (5) and participates in the air cooling and radiating process of a plurality of metal radiating strips (53), and cold air blown from bottom to top can take away heat on the metal radiating strips (53), is converged to the top of the inner cavity of the semiconductor cooling shell, flows downwards through the air exhaust holes (52) and is finally exhausted from the air exhaust opening at the bottom of the half cooling shell (5);
when the piston rod (11) drives the top connector (12) to move up and down, the half cooling shell (5) and the inner structure thereof are driven to slide up and down in a reciprocating manner on the outer cylinder wall of the hydraulic cylinder main body (1), and the contact part between the half cooling shell and the outer cylinder wall of the hydraulic cylinder main body (1) is adjusted.
2. The hydraulic cylinder high-pressure protection device according to claim 1, wherein a piston rod (11) is installed at the output end of the hydraulic cylinder main body (1), one end of the piston rod (11) extends into a hydraulic cavity of the hydraulic cylinder main body (1), and a connector (12) is vertically and fixedly installed at the other end of the piston rod (11).
3. The hydraulic cylinder high-pressure protection device according to claim 2, wherein the top ends of the two mounting seats (2) are respectively provided with a mounting hole (21) through the bottom, the hydraulic cylinder main body (1) is simultaneously inserted into the two mounting holes (21) in a penetrating manner, the outer diameter of the hydraulic cylinder main body (1) is consistent with the inner diameters of the two mounting holes (21), the four corners of the top end of the mounting seat (2) positioned below are respectively provided with a long rod screw (23), the top ends of the two mounting seats (2) are respectively provided with two T-shaped slots (22), the lengths of the two T-shaped slots (22) are smaller than the thickness of the corresponding mounting seats (2), the side wall of the mounting seat (2) positioned below is fixedly provided with an oil storage box (24), the top end of the oil storage box (24) is fixedly provided with an overflow valve (25), the inner cavity of the oil storage box (24) is provided with an oil return pump, the output end of the oil return pump is provided with the liquid outlet of the hydraulic cylinder main body (1), and the hydraulic cylinder main body is provided with a liquid drain valve (1).
4. A hydraulic cylinder high-pressure protection device according to claim 3, characterized in that, two synchronous transmission mechanisms (3) are installed on both sides of the hydraulic cylinder main body (1), two synchronous transmission mechanisms (3) each comprise two connecting seats (31), four connecting seats (31) are respectively and vertically fixedly installed on the outer side walls of corresponding installation seats (2), two connecting seats (31) are vertically and fixedly installed on both ends of the shaft cylinder (35), an inserting cavity is formed at one end of the shaft cylinder (35), a sliding cavity (36) is formed in the inner cavity wall of the two inserting cavities by penetrating through the outer cylinder wall of the corresponding shaft cylinder (35), inserting rods (37) are slidably inserted into the two inserting cavities, sliding installation sliding blocks (39) are fixedly installed on opposite sides of the two inserting rods (37), sliding installation of the two sliding blocks (39) are respectively and adaptively installed in the corresponding sliding cavities (36), fixing rods (38) are vertically and fixedly connected on opposite sides of the two inserting rods (37), and the two sliding rods (38) are vertically and fixedly installed on opposite sides of the piston rods (11) and are symmetrically distributed on the piston rods (11).
5. The hydraulic cylinder high-pressure protection device according to claim 4, wherein four mounting seats (2) are fixedly provided with T-shaped inserting blocks (32) near one ends of corresponding connecting seats (31), the four T-shaped inserting blocks (32) are respectively inserted into corresponding T-shaped inserting grooves (22), the top ends of the four connecting seats (31) are vertically and fixedly provided with two fixing blocks (33), a plurality of fixing blocks (33) are provided with fastening screws (34) in a threaded mode, and a plurality of fastening screws (34) are respectively in threaded contact with the outer side walls of the corresponding mounting seats (2).
6. The hydraulic cylinder high-pressure protection device according to claim 5, wherein the two connecting mechanisms (4) comprise fixing seats (41), one ends of the two fixing seats (41) away from each other are fixedly installed on one side of the corresponding sliding block (39), one ends of the two fixing seats (41) opposite to each other are provided with rotating rings (44), one sides of the two rotating rings (44) close to the corresponding fixing seats (41) are vertically and fixedly connected with first threaded shafts (45), the ends of the first threaded shafts (45) away from the fixing seats (41) are vertically and fixedly installed with limiting round blocks (46), and the two first threaded shafts (45) are in threaded insertion in the fixing seats (41).
7. The hydraulic cylinder high-pressure protection device according to claim 6, wherein the two fixing seats (41) are provided with limiting cavities (42), the two limiting round blocks (46) are respectively and rotatably arranged in the corresponding limiting cavities (42), the inner cavity walls of the two limiting cavities (42) penetrate through the end parts of the fixing seats (41) to be provided with threaded holes (43), the two first threaded shafts (45) are respectively and spirally arranged in the corresponding threaded holes (43), the two rotary rings (44) are respectively and fixedly arranged with second threaded shafts (47) at the end far away from the corresponding first threaded shafts (45), the tail ends of the two second threaded shafts (47) are respectively and spirally sleeved with threaded sleeves (48), and the two threaded sleeves (48) are respectively and fixedly arranged on the outer side walls of the corresponding half cooling shells (5).
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| CN202310960108.4A CN116928172B (en) | 2023-08-02 | 2023-08-02 | Hydraulic cylinder high-pressure protection device |
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| CN202310960108.4A CN116928172B (en) | 2023-08-02 | 2023-08-02 | Hydraulic cylinder high-pressure protection device |
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| CN116928172B true CN116928172B (en) | 2024-03-19 |
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| CN209180149U (en) * | 2018-08-05 | 2019-07-30 | 无锡精艺达科技有限公司 | One kind is hydraulic to use piston rod |
| CN111486150A (en) * | 2020-05-26 | 2020-08-04 | 太重集团榆次液压工业(济南)有限公司 | Self-pressure-relief hydraulic oil cylinder with adjustable buffer function |
| CN213711482U (en) * | 2020-11-23 | 2021-07-16 | 天津市工仪科技有限公司 | Safe and stable pneumatic execution cylinder |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4056043A (en) * | 1975-10-28 | 1977-11-01 | Johnson Controls, Inc. | Fluid power piston actuators |
| CN102943786A (en) * | 2012-12-11 | 2013-02-27 | 湖南特力液压有限公司 | Hydraulic cylinder |
| CN106536945A (en) * | 2014-07-15 | 2017-03-22 | Smc株式会社 | Guide unit for actuator |
| JP2016090012A (en) * | 2014-11-10 | 2016-05-23 | 株式会社コガネイ | Fluid pressure cylinder |
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| CN116928172A (en) | 2023-10-24 |
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