CN112648256A - Constant throttling type buffer structure high-pressure oil cylinder - Google Patents
Constant throttling type buffer structure high-pressure oil cylinder Download PDFInfo
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- CN112648256A CN112648256A CN202011456301.7A CN202011456301A CN112648256A CN 112648256 A CN112648256 A CN 112648256A CN 202011456301 A CN202011456301 A CN 202011456301A CN 112648256 A CN112648256 A CN 112648256A
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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
- F15B15/1423—Component parts; Constructional details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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
- F15B15/1423—Component parts; Constructional details
- F15B15/1438—Cylinder to end cap assemblies
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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
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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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
- F15B15/1423—Component parts; Constructional details
- F15B15/1471—Guiding means other than in the end cap
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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
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
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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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/202—Externally-operated valves mounted in or on the actuator
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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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/007—Overload
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field of high-pressure oil cylinders, in particular to a constant-throttling buffer structure high-pressure oil cylinder which comprises a cylinder body, wherein a pushing mechanism is arranged in the cylinder body, a first stabilizing mechanism is arranged on the side wall of one side of the cylinder body, a second stabilizing mechanism is arranged on the side wall of the other side of the cylinder body, and a pressure regulating mechanism is arranged at one end, far away from an opening, of the cylinder body. The hydraulic oil through setting up promotes the piston and removes, promote first press the briquetting through first conical surface during the piston removes, make first press the briquetting to the inside removal of first fixed cylinder, first press the briquetting to drive first ejector pad through first inserted bar and remove, the first through-hole of messenger removes to first fixed cover is inside, and then plug up first oil pipe, the hydraulic oil that makes stops to the inside pressurization of cylinder body, and then prevent that hydraulic oil from assaulting the piston rod and rocking, can not cause the influence to the inside operation of cylinder body when hydraulic oil strikes first ejector pad.
Description
Technical Field
The invention relates to the technical field of high-pressure oil cylinders, in particular to a constant throttling type buffer structure high-pressure oil cylinder.
Background
The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion, has simple structure and reliable work, can omit a speed reducer when realizing reciprocating motion, has no transmission clearance and moves stably, thereby being widely applied to hydraulic systems of various machines, the output force of the hydraulic cylinder is in direct proportion to the effective area of a piston and the pressure difference between the two sides of the piston, and the hydraulic cylinder basically comprises a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device.
When the existing high-pressure oil cylinder is used, the pressure of an internal piston is large, the piston must be prevented from being impacted with two ends of a cylinder body through a buffer device, an oil inlet on the cylinder body is plugged by a block arranged on a piston rod, but when the block gradually blocks the oil inlet, the pressure generated by hydraulic oil discharged from the oil inlet impacts the block, and then the block can be caused to rock, the piston rod is driven to rock when the block rocks, and then the piston rod is unstable when moving, and further the operation of the high-pressure oil cylinder is influenced.
Disclosure of Invention
The invention provides a constant throttling type buffer structure high-pressure oil cylinder, aiming at the problems that when the high-pressure oil cylinder in the prior art is used, the pressure applied to an internal piston is large, the piston is prevented from colliding with two ends of a cylinder body through a buffer device, an oil inlet on the cylinder body is blocked through a block arranged on a piston rod, but when the oil inlet is gradually blocked by the block, the pressure generated by hydraulic oil discharged from the oil inlet impacts the block, the block is likely to shake, the piston rod is driven to shake when the block shakes, the piston rod is further unstable when moving, and the operation of the high-pressure oil cylinder is further influenced.
The technical scheme adopted by the invention for solving the technical problems is as follows: a constant-throttle high-pressure oil cylinder with a buffer structure comprises a cylinder body, wherein a pushing mechanism is arranged in the cylinder body, a first stabilizing mechanism is arranged on the side wall of one side of the cylinder body, a second stabilizing mechanism is arranged on the side wall of the other side of the cylinder body, a pressure regulating mechanism is arranged at one end, far away from an opening, of the cylinder body, the pushing mechanism comprises a piston, a first conical surface, a second conical surface, a piston rod, a guide sleeve, a sleeve and a baffle ring, the piston is movably sleeved on the inner wall of the cylinder body, the first conical surface is arranged on the side wall, far away from the opening, of the piston, the second conical surface is arranged on the side wall, close to the opening, of the cylinder body, the piston rod is fixedly connected to the surface of the second conical surface, the piston rod is inserted into the guide sleeve, the guide sleeve is fixedly sleeved, the fixed cover of cover has connect and has kept off the ring on telescopic inner wall, keep off the ring lateral wall and set up with the direction cover contact.
Specifically, the first stabilizing mechanism comprises a first fixed cylinder, a first fixed plate, a first jack, a first insert rod, a first pressing block, a first spring, a first push block, a first through hole, a first oil inlet pipe and a first fixed sleeve, the first fixed cylinder is fixedly sleeved on the side wall of one end of the cylinder body away from the sleeve, the first fixed plate is fixedly connected inside the first fixed cylinder, the first jack is formed on the surface of the first fixed plate, the first insert rod is inserted inside the first jack, the first pressing block is fixedly connected at one end of the first insert rod close to the cylinder body, the first spring is movably sleeved on the surface of the first insert rod, the first push block is fixedly connected at the other end of the first insert rod, the first through hole is formed on the side wall of each of the two ends of the first push block, the first push block is inserted inside the first oil inlet pipe, the first push block is inserted inside the first fixed sleeve, the fixed cover of first fixed cover is fixed to be connected on the outer wall of first oil inlet pipe, the fixed intercommunication of the other end of first oil inlet pipe is on the cylinder body is close to open-ended one end outer wall.
Specifically, the second stabilizing mechanism comprises a second fixed cylinder, a second fixed plate, a second jack, a second insert rod, a second pressing block, a second spring, a second push block, a second through hole, a second oil inlet pipe and a second fixed sleeve, the second fixed cylinder is fixedly sleeved on the side wall of one end of the cylinder body close to the sleeve, the second fixed plate is fixedly connected inside the second fixed cylinder, the second jack is arranged on the surface of the second fixed plate, the second insert rod is inserted inside the second jack, the second pressing block is fixedly connected at one end of the second insert rod close to the cylinder body, the second spring is movably sleeved on the surface of the second insert rod, the second push block is fixedly connected to the other end of the second insert rod, the second through hole is arranged on the side wall of both ends of the second push block, the second push block is inserted inside the second oil inlet pipe, the second push block is inserted inside the second fixed sleeve, the second fixing sleeve is fixedly sleeved on the outer wall of the second oil inlet pipe, and the other end of the second oil inlet pipe is fixedly communicated with the outer wall of the end, far away from the opening, of the cylinder body.
The pressure regulating mechanism comprises a pressure regulating barrel, a fixing ring, a fixing rod, a sliding groove, a sliding block, a third spring and a baffle plate, wherein the pressure regulating barrel is fixedly communicated with the outer wall of the end, far away from the opening, of the cylinder body, the fixing ring is movably sleeved in the pressure regulating barrel, the fixing rod is inserted in the fixing ring, the fixing rod is fixedly connected in the pressure regulating barrel, the sliding groove is formed in the surface of the fixing rod, the sliding block is slidably connected in the sliding groove, the two ends of the sliding block are fixedly connected to the inner wall of the fixing ring, the third spring is movably sleeved on the surface of the fixing rod, one end of the third spring is fixedly connected to the inner wall of the pressure regulating barrel, the other end of the third spring is fixedly connected to the side wall of the fixing ring, and the fixing rod is close to the opening end of.
Specifically, the surface of one end, close to the inside of the cylinder body, of the first pressing block is matched with the first conical surface.
Specifically, one end surface, close to the inside of the cylinder body, of the second pressing block is matched with the second conical surface.
Specifically, the surface of dead lever and the inner wall in close contact with of solid fixed ring, the outer wall in close contact with of pressure regulating section of thick bamboo of solid fixed ring.
The invention has the beneficial effects that:
(1) according to the constant-throttling type buffer structure high-pressure oil cylinder, the piston is pushed to move through the arranged hydraulic oil, when the piston moves, the first pressing block is pushed through the first conical surface, the first pressing block is enabled to move towards the interior of the first fixed cylinder, the first pressing block drives the first pushing block to move through the first inserting rod, the first through hole is enabled to move towards the interior of the first fixed sleeve, the first oil inlet pipe is further blocked, the hydraulic oil stops pressurizing towards the interior of the cylinder body, the hydraulic oil is further prevented from impacting the piston rod to shake, and when the hydraulic oil impacts the first pushing block, the operation of the interior of the cylinder body cannot be affected.
(2) According to the high-pressure oil cylinder with the constant-throttling buffer structure, the fixed ring is arranged to bear the pressure of hydraulic oil in the cylinder body, when the pressure in the cylinder body exceeds the pressure borne by the cylinder body, the hydraulic oil extrudes the fixed ring to move towards the interior of the pressure regulating cylinder, the fixed ring which is in close contact with the inner wall of the pressure regulating cylinder and the surface of the fixed ring prevents the hydraulic oil from entering the interior of the pressure regulating cylinder, and when the pressure returns to be normal, the third spring pushes the fixed ring to move back, so that the oil cylinder is prevented from being damaged when the pressure in the oil cylinder exceeds the bearing.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a high-pressure oil cylinder with a constant-throttle type buffer structure provided by the invention;
FIG. 2 is an enlarged view of a portion A in FIG. 1 of a constant throttle type buffer structure high-pressure oil cylinder provided by the present invention;
FIG. 3 is an enlarged view of a portion B in FIG. 1 of a constant throttle type buffer structure high-pressure oil cylinder provided by the present invention;
FIG. 4 is a schematic structural view of a pressure regulating mechanism of a high-pressure oil cylinder with a constant throttle type buffer structure provided by the invention;
FIG. 5 is a side view of a pressure regulating mechanism of a high-pressure oil cylinder with a constant throttle type buffer structure provided by the invention;
FIG. 6 is a schematic diagram of a piston structure of a high-pressure oil cylinder with a constant throttle type buffer structure according to the present invention;
fig. 7 is a schematic structural view of a first push block of the high-pressure oil cylinder with the constant-throttle buffer structure provided by the invention.
In the figure: 1. a cylinder body; 2. a pushing mechanism; 21. a piston; 22. a first conical surface; 23. a second tapered surface; 24. a piston rod; 25. a guide sleeve; 26. a sleeve; 27. a baffle ring; 3. a first stabilizing mechanism; 31. a first fixed cylinder; 32. a first fixing plate; 33. a first jack; 34. a first plunger; 35. a first pressing block; 36. a first spring; 37. a first push block; 38. A first through hole; 39. a first oil inlet pipe; 310. a first fixing sleeve; 4. a second stabilizing mechanism; 41. a second fixed cylinder; 42. A second fixing plate; 43. a second jack; 44. a second plunger; 45. a second pressing block; 46. a second spring; 47. a second push block; 48. a second through hole; 49. a second oil inlet pipe; 410. a second fixing sleeve; 5. a pressure regulating mechanism; 51. a pressure regulating cylinder; 52. a fixing ring; 53. fixing the rod; 54. a chute; 55. a slider; 56. a third spring; 57. and a baffle plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1-7, the constant-throttling buffer structure high-pressure oil cylinder according to the present invention includes a cylinder body 1, a pushing mechanism 2 is disposed in the cylinder body 1, a first stabilizing mechanism 3 is disposed on a side wall of one side of the cylinder body 1, a second stabilizing mechanism 4 is disposed on another side wall of the cylinder body 1, a pressure regulating mechanism 5 is disposed at an end of the cylinder body 1 away from an opening, the pushing mechanism 2 includes a piston 21, a first conical surface 22, a second conical surface 23, a piston rod 24, a guide sleeve 25, a sleeve 26, and a retainer ring 27, the piston 21 is movably sleeved on an inner wall of the cylinder body 1, the first conical surface 22 is disposed on a side wall of the piston 21 away from the opening of the cylinder body 1, the second conical surface 23 is disposed on a side wall of the piston 21 close to the opening of the cylinder body 1, the piston rod 24 is fixedly connected to a surface of the second conical surface 23, the piston rod 24, fixed sleeve 26 that has cup jointed on the opening outer wall of cylinder body 1, fixed cover has connect and has kept off ring 27 on sleeve 26's the inner wall, keep off ring 27 lateral wall and the setting of uide bushing 25 contact, inside hydraulic oil let in cylinder body 1 through first oil pipe 39 and is close to open-ended one end, promote second conical surface 23 through hydraulic oil, and then drive piston 21 to the inside removal of cylinder body 1, inside hydraulic oil let in cylinder body 1 through second oil pipe 49 and keep away from open-ended one end, promote first conical surface 22 through hydraulic oil, and then drive piston 21 to the outside removal of cylinder body 1.
Specifically, the first stabilizing mechanism 3 includes a first fixing cylinder 31, a first fixing plate 32, a first insertion hole 33, a first insertion rod 34, a first pressing block 35, a first spring 36, a first pushing block 37, a first through hole 38, a first oil inlet pipe 39, and a first fixing sleeve 310, the first fixing cylinder 31 is fixedly sleeved on a side wall of one end of the cylinder body 1 away from the sleeve 26, the first fixing plate 32 is fixedly connected inside the first fixing cylinder 31, the first insertion hole 33 is formed on the surface of the first fixing plate 32, the first insertion rod 34 is inserted inside the first insertion hole 33, one end of the first insertion rod 34 close to the cylinder body 1 is fixedly connected with the first pressing block 35, the first spring 36 is movably sleeved on the surface of the first insertion rod 34, the other end of the first insertion rod 34 is fixedly connected with the first pushing block 37, the side walls of both ends of the first pushing block 37 are provided with the first through hole 38, the first pushing block 37 is inserted inside the first oil inlet pipe 39, the first push block 37 is inserted into the first fixing sleeve 310, the first fixing sleeve 310 is fixedly connected to the outer wall of the first oil inlet pipe 39, the other end of the first oil inlet pipe 39 is fixedly communicated with the outer wall of the end, close to the opening, of the cylinder body 1, when the piston rod 24 needs to be retracted, firstly, hydraulic oil is introduced into the first oil inlet pipe 39, the hydraulic oil is introduced into the end, close to the opening, of the cylinder body 1 through the first oil inlet pipe 39, the second conical surface 23 is pushed by the hydraulic oil, and the piston 21 is further driven to move towards the inside of the cylinder body 1, when the piston 21 drives the first conical surface 22 and the first push block 35 to press, the first push block 35 moves towards the inside of the first fixing cylinder 31, the first push block 35 presses the first insert rod 34 to move, the first insert rod 34 drives the first push block 37 to move, and then the first through hole 38 on the surface of the first push block 37 enters the inside of the first fixing sleeve 310, and then the first through hole, and the first oil inlet pipe 39 is blocked, so that the pressing of the hydraulic oil on the second taper surface 23 is released, the piston 21 stops operating, the pressure of the hydraulic oil is blocked by the first push block 37, the hydraulic oil is prevented from impacting the piston rod 24 to shake, and the operation inside the cylinder body 1 cannot be influenced when the hydraulic oil impacts the first push block 37.
Specifically, the second stabilizing mechanism 4 includes a second fixing cylinder 41, a second fixing plate 42, a second insertion hole 43, a second insertion rod 44, a second pressing block 45, a second spring 46, a second pushing block 47, a second through hole 48, a second oil inlet pipe 49, and a second fixing sleeve 410, the second fixing cylinder 41 is fixedly sleeved on a side wall of one end of the cylinder body 1 close to the sleeve 26, the second fixing plate 42 is fixedly connected inside the second fixing cylinder 41, the second insertion hole 43 is formed on the surface of the second fixing plate 42, the second insertion rod 44 is inserted inside the second insertion hole 43, one end of the second insertion rod 44 close to the cylinder body 1 is fixedly connected with the second pressing block 45, the second spring 46 is movably sleeved on the surface of the second insertion rod 44, the second pushing block 47 is fixedly connected to the other end of the second insertion rod 44, the side walls of two ends of the second pushing block 47 are both provided with the second through hole 48, the second pushing block 47 is inserted inside the second oil inlet pipe 49, the second pushing block 47 is inserted into the second fixing sleeve 410, the second fixing sleeve 410 is fixedly sleeved on the outer wall of the second oil inlet pipe 49, the other end of the second oil inlet pipe 49 is fixedly communicated with the outer wall of the end, far away from the opening, of the cylinder body 1, when the piston rod 24 needs to be pushed out, hydraulic oil is introduced into the second oil inlet pipe 49, the hydraulic oil is introduced into the end, far away from the opening, of the cylinder body 1 through the second oil inlet pipe 49, the first conical surface 22 is pushed by the hydraulic oil, and the piston 21 is driven to move towards the outside of the cylinder body 1, when the piston 21 drives the second conical surface 23 to be pressed with the second pushing block 45, the second pushing block 45 moves towards the inside of the second fixing cylinder 41, the second pushing block 45 presses the second inserting rod 44 to move, the second inserting rod 44 drives the second pushing block 47 to move, and then the second through hole 48 on the surface of the second pushing block 47 enters the inside of the second fixing sleeve 410, and then the second, and then the second oil inlet pipe 49 is blocked, and the pressing of the hydraulic oil on the first conical surface 22 is released, so that the piston 21 stops running, the pressure of the hydraulic oil is blocked by the second push block 47, and the hydraulic oil is prevented from impacting the piston rod 24 to shake, and when the hydraulic oil impacts the second push block 47, the running inside the cylinder body 1 cannot be influenced.
Specifically, the pressure regulating mechanism 5 includes a pressure regulating cylinder 51, a fixing ring 52, a fixing rod 53, a chute 54, a slider 55, a third spring 56, and a baffle 57, the pressure regulating cylinder 51 is fixedly communicated with the outer wall of the end of the cylinder body 1 far away from the opening, the fixing ring 52 is movably sleeved inside the pressure regulating cylinder 51, the fixing rod 53 is inserted inside the fixing ring 52, the fixing rod 53 is fixedly connected inside the pressure regulating cylinder 51, the chute 54 is opened on the surface of the fixing rod 53, the slider 55 is slidably connected inside the chute 54, both ends of the slider 55 are fixedly connected on the inner wall of the fixing ring 52, the third spring 56 is movably sleeved on the surface of the fixing rod 53, one end of the third spring 56 is fixedly connected on the inner wall of the pressure regulating cylinder 51, the other end of the third spring 56 is fixedly connected on the side wall of the fixing ring 52, the baffle 57 is fixedly connected at the end of the fixing rod 53 close to the opening of the pressure regulating cylinder, the hydraulic oil extrudes the fixing ring 52 to move towards the inside of the pressure regulating cylinder 51, the fixing ring 52 which is in close contact with the inner wall of the pressure regulating cylinder 51 and the surface of the fixing rod 53 prevents the hydraulic oil from entering the inside of the pressure regulating cylinder 51, and when the pressure returns to normal, the third spring 56 pushes the fixing ring 52 to move back, so that the oil cylinder 1 is prevented from being damaged when the pressure inside the oil cylinder 1 exceeds the bearing limit.
Specifically, one end surface of the first pressing block 35 near the inside of the cylinder 1 is matched with the first tapered surface 22.
Specifically, an end surface of the second pressing block 45 near the inside of the cylinder 1 is matched with the second tapered surface 23.
Specifically, the surface of the fixing rod 53 is in close contact with the inner wall of the fixing ring 52, and the outer wall of the fixing ring 52 is in close contact with the inner wall of the pressure regulating cylinder 51.
When the piston rod 24 is used, if the piston rod 24 needs to be retracted, firstly, hydraulic oil is introduced into the first oil inlet pipe 39, the hydraulic oil is introduced into one end of the cylinder body 1 close to the opening through the first oil inlet pipe 39, the second taper surface 23 is pushed by the hydraulic oil, and the piston 21 is further driven to move towards the inside of the cylinder body 1, when the piston 21 drives the first taper surface 22 and the first pressing block 35 to press, the first pressing block 35 moves towards the inside of the first fixed cylinder 31, the first pressing block 35 presses the first insertion rod 34 to move, the first insertion rod 34 drives the first pressing block 37 to move, and then the first through hole 38 on the surface of the first pressing block 37 enters the inside of the first fixed sleeve 310, and then the first through hole 38 is blocked by the first fixed sleeve 310, so that the first oil inlet pipe 39 is blocked, and further the pressing of the hydraulic oil on the second taper surface 23 is released, so that the piston 21 stops operating, and the pressure of the hydraulic oil is blocked by the, when the piston rod 24 needs to be pushed out, hydraulic oil is introduced into the second oil inlet pipe 49, the hydraulic oil is introduced into the end of the cylinder body 1 away from the opening through the second oil inlet pipe 49, the first conical surface 22 is pushed by the hydraulic oil, the piston 21 is further driven to move towards the outside of the cylinder body 1, when the piston 21 drives the second conical surface 23 to press against the second pressing block 45, the second pressing block 45 moves towards the inside of the second fixed cylinder 41, the second pressing block 45 presses the second insertion rod 44 to move, the second insertion rod 44 drives the second pressing block 47 to move, so that the second through hole 48 on the surface of the second pressing block 47 enters the inside of the second fixed sleeve 410, the second through hole 48 is blocked by the second fixed sleeve 410, and the second oil inlet pipe 49 is blocked, and then the pressing of the first conical surface 22 by the hydraulic oil is released, the piston 21 is stopped to operate, the pressure of the hydraulic oil is blocked by the second push block 47, and then the hydraulic oil is prevented from impacting the piston rod 24 to shake, when the hydraulic oil impacts the second push block 47, the operation inside the cylinder body 1 is not affected, when the pressure inside the cylinder body 1 exceeds the bearing pressure of the cylinder body 1, the hydraulic oil extrudes the fixing ring 52 to move towards the inside of the pressure regulating cylinder 51, the hydraulic oil is prevented from entering the inside of the pressure regulating cylinder 51 by the fixing ring 52 which is in close contact with the inner wall of the pressure regulating cylinder 51 and the surface of the fixing rod 53, when the pressure returns to normal, the third spring 56 pushes the fixing ring 52 to move back, and then the cylinder 1 is prevented from being damaged.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a constant throttle type buffer structure high pressure oil cylinder, includes cylinder body (1), its characterized in that: a pushing mechanism (2) is arranged in the cylinder body (1), a first stabilizing mechanism (3) is arranged on the side wall of one side of the cylinder body (1), a second stabilizing mechanism (4) is arranged on the side wall of the other side of the cylinder body (1), and a pressure regulating mechanism (5) is arranged at one end, far away from the opening, of the cylinder body (1); the pushing mechanism (2) comprises a piston (21), a first conical surface (22), a second conical surface (23), a piston rod (24), a guide sleeve (25), a sleeve (26) and a baffle ring (27), the piston (21) is movably sleeved on the inner wall of the cylinder body (1), the first conical surface (22) is arranged on the side wall of one side of the piston (21) far away from the opening of the cylinder body (1), the second conical surface (23) is arranged on the side wall of one side of the piston (21) close to the opening of the cylinder body (1), the piston rod (24) is fixedly connected to the surface of the second conical surface (23), the piston rod (24) is inserted into the guide sleeve (25), the guide sleeve (25) is fixedly sleeved on the inner wall of the opening of the cylinder body (1), the sleeve (26) is fixedly sleeved on the outer wall of the opening of the cylinder body (1), the baffle ring (27) is fixedly sleeved on the, the side wall of the baffle ring (27) is in contact with the guide sleeve (25).
2. The constant throttling type buffer structure high-pressure oil cylinder according to claim 1, characterized in that: the first stabilizing mechanism (3) comprises a first fixing cylinder (31), a first fixing plate (32), a first jack (33), a first insert rod (34), a first pressing block (35), a first spring (36), a first push block (37), a first through hole (38), a first oil inlet pipe (39) and a first fixing sleeve (310), the first fixing cylinder (31) is fixedly connected to the side wall of one end, far away from the sleeve (26), of the cylinder body (1), the first fixing cylinder (31) is fixedly connected with the first fixing plate (32) in the inner portion, the first jack (33) is formed in the surface of the first fixing plate (32), the first insert rod (34) is inserted in the first jack (33), the first insert rod (34) is fixedly connected to one end, close to the cylinder body (1), of the first insert rod (34) is fixedly connected with the first spring (35), the first spring (36) is movably sleeved on the surface of the first insert rod (34), the other end fixedly connected with of first inserted bar (34) pushes away piece (37), first through-hole (38) have all been seted up on the both ends lateral wall of first push away piece (37), peg graft in the inside of first oil feed pipe (39) first push away piece (37), peg graft inside first fixed cover (310) first push away piece (37), first fixed cover (310) are fixed cup joints on the outer wall of first oil feed pipe (39), the other end of first oil feed pipe (39) is fixed to be communicated on cylinder body (1) is close to open-ended one end outer wall.
3. The constant throttling type buffer structure high-pressure oil cylinder according to claim 1, characterized in that: the second stabilizing mechanism (4) comprises a second fixing cylinder (41), a second fixing plate (42), a second insertion hole (43), a second insert rod (44), a second pressing block (45), a second spring (46), a second push block (47), a second through hole (48), a second oil inlet pipe (49) and a second fixing sleeve (410), the second fixing cylinder (41) is fixedly sleeved on the side wall of one end, close to the sleeve (26), of the cylinder body (1), the second fixing plate (42) is fixedly connected inside the second fixing cylinder (41), the second insertion hole (43) is formed in the surface of the second fixing plate (42), the second insert rod (44) is inserted inside the second insertion hole (43), the second block (45) is fixedly connected to one end, close to the cylinder body (1), of the second insert rod (44), and the second spring (46) is movably sleeved on the surface of the second insert rod (44), the other end fixedly connected with second ejector pad (47) of second inserted bar (44), second through-hole (48) have all been seted up on the both ends lateral wall of second ejector pad (47), second ejector pad (47) are pegged graft in the inside of second oil feed pipe (49), second ejector pad (47) are pegged graft inside the fixed cover of second (410), the fixed cover of second (410) is fixed to be cup jointed on the outer wall of second oil feed pipe (49), the other end fixed intercommunication of second oil feed pipe (49) is on cylinder body (1) keeps away from open-ended one end outer wall.
4. The constant throttling type buffer structure high-pressure oil cylinder according to claim 1, characterized in that: the pressure regulating mechanism (5) comprises a pressure regulating barrel (51), a fixing ring (52), a fixing rod (53), a sliding groove (54), a sliding block (55), a third spring (56) and a baffle (57), wherein the pressure regulating barrel (51) is fixedly communicated with the outer wall of one end, far away from the opening, of the cylinder body (1), the fixing ring (52) is movably sleeved in the pressure regulating barrel (51), the fixing rod (53) is inserted in the fixing ring (52), the fixing rod (53) is fixedly connected in the pressure regulating barrel (51), the sliding groove (54) is formed in the surface of the fixing rod (53), the sliding block (55) is slidably connected in the sliding groove (54), two ends of the sliding block (55) are fixedly connected to the inner wall of the fixing ring (52), the third spring (56) is movably sleeved on the surface of the fixing rod (53), one end of the third spring (56) is fixedly connected to the inner wall of the pressure regulating barrel (51), the other end of the third spring (56) is fixedly connected to the side wall of the fixing ring (52), and the fixing rod (53) is close to one end of the pressure regulating cylinder (51) with an opening and is fixedly connected with a baffle (57).
5. The constant throttling type buffer structure high-pressure oil cylinder according to claim 2, characterized in that: one end surface of the first pressing block (35) close to the interior of the cylinder body (1) is matched with the first conical surface (22).
6. The constant throttle type buffer structure high-pressure oil cylinder according to claim 3, characterized in that: one end surface of the second pressing block (45) close to the interior of the cylinder body (1) is matched with the second conical surface (23).
7. The constant throttling type buffer structure high-pressure oil cylinder according to claim 4, characterized in that: the surface of the fixed rod (53) is in close contact with the inner wall of the fixed ring (52), and the outer wall of the fixed ring (52) is in close contact with the inner wall of the pressure regulating barrel (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456301.7A CN112648256A (en) | 2020-12-11 | 2020-12-11 | Constant throttling type buffer structure high-pressure oil cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011456301.7A CN112648256A (en) | 2020-12-11 | 2020-12-11 | Constant throttling type buffer structure high-pressure oil cylinder |
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| Publication Number | Publication Date |
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| CN112648256A true CN112648256A (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011456301.7A Pending CN112648256A (en) | 2020-12-11 | 2020-12-11 | Constant throttling type buffer structure high-pressure oil cylinder |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143022A (en) * | 2022-06-07 | 2022-10-04 | 苏州恩德弗智能科技有限公司 | Rotary oil hydraulic cylinder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202914440U (en) * | 2012-11-09 | 2013-05-01 | 昆明中铁大型养路机械集团有限公司 | Pressure-adjustable and flow-adjustable buffering hydraulic cylinder and hydraulic system |
| CN209414302U (en) * | 2018-12-29 | 2019-09-20 | 重庆维庆液压机械有限公司 | A kind of buffering hydraulic cylinder |
-
2020
- 2020-12-11 CN CN202011456301.7A patent/CN112648256A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202914440U (en) * | 2012-11-09 | 2013-05-01 | 昆明中铁大型养路机械集团有限公司 | Pressure-adjustable and flow-adjustable buffering hydraulic cylinder and hydraulic system |
| CN209414302U (en) * | 2018-12-29 | 2019-09-20 | 重庆维庆液压机械有限公司 | A kind of buffering hydraulic cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143022A (en) * | 2022-06-07 | 2022-10-04 | 苏州恩德弗智能科技有限公司 | Rotary oil hydraulic cylinder |
| CN115143022B (en) * | 2022-06-07 | 2023-11-24 | 湘潭市湘江液压件制造有限公司 | Rotary oil hydraulic cylinder |
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