CN110939630A - Hydraulic cylinder capable of adjusting buffer speed - Google Patents
Hydraulic cylinder capable of adjusting buffer speed Download PDFInfo
- Publication number
- CN110939630A CN110939630A CN201911326721.0A CN201911326721A CN110939630A CN 110939630 A CN110939630 A CN 110939630A CN 201911326721 A CN201911326721 A CN 201911326721A CN 110939630 A CN110939630 A CN 110939630A
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- Prior art keywords
- oil
- buffer
- fixedly connected
- groove
- oil inlet
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- 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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
- F15B15/226—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having elastic elements, e.g. springs, rubber pads
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydraulic oil cylinder capable of adjusting buffering speed, which comprises a cylinder barrel, wherein a cylinder cover is fixedly connected to the top end of the cylinder barrel, a piston rod is arranged in the cylinder barrel, a piston is fixedly connected to the bottom end of the piston rod, a top guide block is fixedly connected to the inner wall of the top end of the cylinder barrel, and a top buffering groove is formed in the surface of the bottom end of the top guide block. According to the invention, the top buffer sleeve and the bottom buffer sleeve are arranged, so that the piston rod is effectively buffered when being stretched to the limit, the discharge flow of hydraulic oil is adjusted by arranging the adjusting block, the buffering speed of the piston rod is adjusted when being stretched to the limit, the application range of the device is wider, the problem that the piston rod impacts the inner wall of the cylinder barrel at an excessively high stretching speed is effectively avoided, and the service life of the device is prolonged.
Description
Technical Field
The invention relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with adjustable buffering speed.
Background
The hydraulic oil cylinder is a hydraulic actuating element, can convert hydraulic energy into mechanical energy, can realize the reciprocating linear motion or the swinging motion of the connecting structure, and has simple structure and high reliability.
However, the conventional hydraulic cylinder lacks a buffer device, and when a piston rod of the hydraulic cylinder is pushed or retracted to a limit position, rigid impact is generated in a cylinder body, so that the hydraulic cylinder is damaged.
Therefore, it is necessary to provide a hydraulic cylinder with adjustable buffer speed to solve the above problems.
Disclosure of Invention
The invention aims to provide a hydraulic oil cylinder capable of adjusting the buffering speed, which effectively buffers a piston rod when the piston rod extends to the limit by arranging a top buffering sleeve and a bottom buffering sleeve, adjusts the discharge flow of hydraulic oil by arranging an adjusting block, and adjusts the buffering speed of the piston rod when the piston rod extends to the limit, so that the application range of the hydraulic oil cylinder is wider, the problem that the piston rod impacts the inner wall of a cylinder barrel due to too high extending speed is effectively avoided, the service life of the hydraulic oil cylinder is prolonged, and the defects in the technology are overcome.
In order to achieve the above purpose, the invention provides the following technical scheme: a hydraulic oil cylinder capable of adjusting buffering speed comprises a cylinder barrel, wherein a cylinder cover is fixedly connected to the top end of the cylinder barrel, a piston rod is arranged inside the cylinder barrel, a piston is fixedly connected to the bottom end of the piston rod, a top guide block is fixedly connected to the inner wall of the top end of the cylinder barrel, a top buffer groove is formed in the bottom end surface of the top guide block, an oil drainage groove is formed in the top end surface of the top buffer groove, a first oil inlet is fixedly connected to one side of the top end of the cylinder barrel, one end of the first oil inlet is communicated with the top buffer groove, a first oil guide hole is formed in the top end of the first oil inlet, one end of the first oil guide hole is communicated with the first oil inlet, the other end of the first oil guide hole is communicated with the oil drainage groove, a bottom guide block is fixedly connected, one end of the second oil inlet is communicated with the bottom buffer groove, a second oil guide hole is formed in the bottom end of the second oil inlet, one end of the second oil guide hole is communicated with the second oil inlet, the other end of the second oil guide hole is communicated with the bottom buffer groove, accommodating cavities are formed in the top guide block and the bottom guide block, and adjusting mechanisms are arranged in the accommodating cavities;
the adjusting mechanism comprises an adjusting block, a stop block is fixedly connected to the bottom end of the adjusting block, a screw hole is formed in the surface of the bottom end of the adjusting block, a screw rod is connected to the bottom end of the adjusting block through screw threads, a first gear is fixedly connected to the bottom end of the screw rod, the bottom end of the screw rod is rotatably connected with the inner wall of the accommodating cavity through a bearing, a second gear is arranged on one side of the first gear, one side of the second gear is meshed with the first gear, a rotating shaft is fixedly connected to one side of the second gear, away from the first gear, one end of the rotating shaft, away from the second gear, extends out of the cylinder barrel, a knob is fixedly connected to one end of the rotating shaft, away from the second gear, and the top end;
the fixed cover in piston rod top has connect the top buffering post, the fixed cover in the top buffering post outside has connected the top cushion collar, first spout has been seted up on top buffering post top surface, the inside first spring that is equipped with of first spout, first spring bottom and first spout inner wall fixed connection, first spring top and top oil baffle fixed connection, piston bottom end fixedly connected with bottom buffering post, the fixed cover in the bottom buffering post outside has connected the bottom cushion collar, the second spout has been seted up on bottom buffering post bottom surface, second spout inboard is equipped with the second spring, second spring top and second spout inner wall fixed connection, second spring bottom and bottom oil baffle fixed connection.
Preferably, the adjusting block is provided with sealing gaskets at the joints with the top guide block and the bottom buffer groove, and the rotating shaft is rotatably connected with the inner wall of the cylinder barrel through a sealing bearing.
Preferably, the inner side of the top buffer groove is matched with the top buffer sleeve, and the diameter of the top buffer groove is larger than that of the top buffer sleeve.
Preferably, the inner side of the bottom buffer groove is matched with the bottom buffer sleeve, and the diameter of the bottom buffer groove is larger than that of the bottom buffer sleeve.
Preferably, the top cushion sleeve and the bottom cushion sleeve are both made of wear-resistant rubber materials.
Preferably, the inner side of the first sliding groove is in sliding connection with the top oil baffle plate.
Preferably, the inner side of the second sliding groove is in sliding connection with the bottom oil baffle plate.
Preferably, the top oil baffle plate is arranged right below the oil drainage groove, and the bottom oil baffle plate is arranged right above the bottom buffer groove.
In the technical scheme, the invention provides the following technical effects and advantages:
through setting up top dashpot and top dashpot, make the piston rod drive the piston and will impel the advancing speed when the limit and obtained effectual slowing down, through setting up bottom dashpot and bottom dashpot, make the piston will contract the contraction rate when the limit and obtained effectual slowing down, through setting up the regulating block, adjust the extension length of regulating block in first oil inlet and second oil inlet, can adjust the discharge flow of hydraulic oil, make the piston rod the buffer speed when stretching out and drawing back to the limit obtain the regulation, make the application face of this device more extensive, the effectual problem of avoiding the too fast striking cylinder inner wall of piston rod telescopic speed, the service life of this device has been prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the piston of the present invention;
FIG. 3 is a schematic view of the overall structure of the adjusting block of the present invention;
FIG. 4 is an enlarged view of the portion A of FIG. 1 according to the present invention;
FIG. 5 is an enlarged view of the portion B of FIG. 1 according to the present invention;
FIG. 6 is an enlarged view of the structure of the portion C of FIG. 4 according to the present invention.
Description of reference numerals:
1 cylinder, 2 cylinder covers, 3 piston rods, 4 pistons, 5 top guide blocks, 6 top buffer grooves, 7 oil drainage grooves, 8 first oil inlets, 9 accommodating cavities, 10 adjusting blocks, 11 stop blocks, 12 screw rods, 13 first gears, 14 second gears, 15 rotating shafts, 16 knobs, 17 first oil guide holes, 18 top buffer columns, 19 top buffer sleeves, 20 first sliding grooves, 21 top oil baffle plates, 22 bottom buffer columns, 23 bottom buffer sleeves, 24 second sliding grooves, 25 second springs, 26 bottom oil baffle plates, 27 second oil inlets, 28 bottom guide blocks, 29 bottom buffer grooves, 30 second oil guide holes and 31 first springs.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The invention provides a hydraulic oil cylinder capable of adjusting buffering speed, which comprises a cylinder barrel 1, wherein the top end of the cylinder barrel 1 is fixedly connected with a cylinder cover 2, a piston rod 3 is arranged inside the cylinder barrel 1, the bottom end of the piston rod 3 is fixedly connected with a piston 4, the inner wall of the top end of the cylinder barrel 1 is fixedly connected with a top guide block 5, the bottom end surface of the top guide block 5 is provided with a top buffer groove 6, the top end surface of the top buffer groove 6 is provided with an oil drainage groove 7, one side of the top end of the cylinder barrel 1 is fixedly connected with a first oil inlet 8, one end of the first oil inlet 8 is communicated with the top buffer groove 6, the top end of the first oil inlet 8 is provided with a first oil guide hole 17, one end of the first oil guide hole 17 is communicated with the first oil inlet 8, the other end of the first oil guide hole 17 is communicated with, the surface of the top end of the bottom guide block 28 is provided with a bottom buffer groove 29, one side of the bottom end of the cylinder barrel 1 is fixedly connected with a second oil inlet 27, one end of the second oil inlet 27 is communicated with the bottom buffer groove 29, the bottom end of the second oil inlet 27 is provided with a second oil guide hole 30, one end of the second oil guide hole 30 is communicated with the second oil inlet 27, the other end of the second oil guide hole 30 is communicated with the bottom buffer groove 29, the top guide block 5 and the bottom guide block 28 are both internally provided with an accommodating cavity 9, and an adjusting mechanism is arranged in the accommodating cavity 9;
the adjusting mechanism comprises an adjusting block 10, a stop block 11 is fixedly connected to the bottom end of the adjusting block 10, a screw hole is formed in the surface of the bottom end of the adjusting block 10, a screw rod 12 is connected to the bottom end of the adjusting block 10 through a screw thread, a first gear 13 is fixedly connected to the bottom end of the screw rod 12, the bottom end of the screw rod 12 is rotatably connected to the inner wall of the accommodating cavity 9 through a bearing, a second gear 14 is arranged on one side of the first gear 13, one side of the second gear 14 is meshed with the first gear 13, a rotating shaft 15 is fixedly connected to one side, away from the first gear 13, of the second gear 14, one end, away from the second gear 14, of the rotating shaft 15 extends out of the cylinder barrel 1, a knob 16 is fixedly connected to one end, away from the second gear 14, of the rotating shaft 15, and the top end;
the fixed cover in 3 tops of piston rod has been connected with top buffering post 18, the fixed cover in 18 outsides of top buffering post has been connected with top buffering cover 19, first spout 20 has been seted up to 18 top surfaces of top buffering post, the inside first spring 31 that is equipped with of first spout 20, the fixed wall fixed connection in first spring 31 bottom and first spout 20, first spring 31 top and top oil baffle 21 fixed connection, 4 bottom fixedly connected with bottom buffering posts 22 of piston, the fixed cover in 22 outsides of bottom buffering post has been connected with bottom buffering cover 23, second spout 24 has been seted up on 22 bottom surfaces of bottom buffering posts, 24 inboard second springs 25 that are equipped with of second spout, second spring 25 top and 24 inner wall fixed connection of second spout, second spring 25 bottom and bottom oil baffle 26 fixed connection.
Furthermore, in the above technical solution, the joints of the adjusting block 10 and the top guide block 5 and the bottom buffer groove 29 are all provided with a sealing gasket, and the rotating shaft 15 is rotatably connected with the inner wall of the cylinder barrel 1 through a sealing bearing;
further, in the above technical solution, the inside of the top buffer slot 6 is matched with the top buffer sleeve 19, the diameter of the top buffer slot 6 is larger than that of the top buffer sleeve 19, and hydraulic oil can be discharged from a gap between the top buffer slot 6 and the top buffer sleeve 19;
further, in the above technical solution, the inner side of the bottom buffer slot 29 is matched with the bottom buffer sleeve 23, the diameter of the bottom buffer slot 29 is larger than that of the bottom buffer sleeve 23, and hydraulic oil can be discharged from a gap between the bottom buffer sleeve 23 and the bottom buffer slot 29;
further, in the above technical solution, the top cushion sleeve 19 and the bottom cushion sleeve 23 are both made of wear-resistant rubber material;
further, in the above technical solution, the inside of the first sliding chute 20 is slidably connected with the top oil baffle 21, and the top oil baffle 21 can be retracted into the first sliding chute 20;
further, in the above technical solution, the inner side of the second sliding chute 24 is slidably connected with the bottom oil baffle 26, and the bottom oil baffle 26 can be retracted into the second sliding chute 24;
further, in the above technical solution, the top oil baffle plate 21 is disposed right below the oil drainage groove 7, the bottom oil baffle plate 26 is disposed right above the bottom buffer groove 29, when the piston rod 3 is about to be pushed to the limit, the oil drainage groove 7 can be blocked by the top oil baffle plate 21, and when the piston rod 3 is about to be contracted to the limit, the second oil guide hole 30 at the bottom end of the bottom buffer groove 29 can be blocked by the bottom oil baffle plate 26;
the implementation mode is specifically as follows: when the piston rod 3 drives the piston 4 to advance in the cylinder 1, hydraulic oil is discharged from the first oil inlet 8 and the first oil guide hole 17, when the piston rod 3 drives the piston 4 to advance to the limit, the top buffer column 18 and the top buffer sleeve 19 move into the top buffer groove 6 at the bottom end of the top guide block 5, the top end of the top oil baffle plate 21 firstly contacts with the oil drainage groove 7 and blocks the oil drainage groove 7, so that the hydraulic oil cannot be discharged from the first oil guide hole 17, at the moment, the hydraulic oil can only be discharged from the first oil inlet 8, and the top buffer sleeve 19 moves into the top buffer groove 6, at the moment, the hydraulic oil can only be discharged from the first oil inlet 8 from the gap between the top buffer groove 6 and the top buffer sleeve 19, the discharge flow of the hydraulic oil is limited, so that the advancing speed when the piston rod 3 drives the piston 4 to advance to the limit is effectively slowed down, and by rotating the knob 16, the knob 16 drives the second gear 14 to rotate through the, the second gear 14 drives the screw rod 12 to rotate through the first gear 13, so that the adjusting block 10 can be adjusted to lift on the screw rod 12, the screw rod 12 is adjusted to lift to the first oil inlet 8 through the knob 16, the adjusting block 10 can further limit the flow of hydraulic oil in the first oil inlet 8, so that the buffering effect is improved, the buffering speed is further reduced, the adjusting block 10 can be flexibly adjusted to further adjust the buffering speed according to the use scene of the device, when the piston rod 3 drives the piston 4 to shrink, the hydraulic oil is discharged from the second oil guide hole 30 and the second oil inlet 27, when the piston 4 is about to shrink to the limit, the bottom oil baffle plate 26 firstly contacts with the inner wall at the bottom end of the bottom buffering groove 29 and blocks the second oil guide hole 30, at the moment, the hydraulic oil can only be discharged from the second oil inlet 27, and the bottom buffering sleeve 23 moves into the bottom buffering groove 29, the hydraulic oil can only be discharged from the second oil inlet from the gap between the bottom buffering sleeve 23 and the, at this moment, the discharge flow of the hydraulic oil is limited, the contraction speed of the piston 4 to be contracted to the limit is effectively reduced, the knob 16 on one side of the second oil inlet 27 is rotated to adjust the adjusting block 10 to move into the second oil inlet 27, the discharge flow of the hydraulic oil can be further limited, the buffering effect is improved when the piston 4 is contracted, the buffering speed is further reduced, and the problem that the hydraulic oil cylinder is damaged due to the fact that a buffering device is lacked in the hydraulic oil cylinder in the prior art and rigid impact can be generated in the cylinder body is solved.
This practical theory of operation:
referring to the attached drawings 1-6 of the specification, when the piston rod 3 drives the piston 4 to advance in the cylinder 1, hydraulic oil is discharged from the first oil inlet 8 and the first oil guide hole 17, when the piston rod 3 drives the piston 4 to advance to the limit, the top buffer column 18 and the top buffer sleeve 19 move to the top buffer groove 6 at the bottom end of the top guide block 5, the top end of the top oil baffle plate 21 firstly contacts with the oil drainage groove 7 and blocks the oil drainage groove 7, so that the hydraulic oil cannot be discharged from the first oil guide hole 17, at this time, the hydraulic oil can be discharged from the first oil inlet 8, and the top buffer sleeve 19 moves to the top buffer groove 6, at this time, the hydraulic oil can be discharged from the first oil inlet 8 only from the gap between the top buffer groove 6 and the top buffer sleeve 19, the discharge flow of the hydraulic oil is limited, so that the advancing speed when the piston rod 3 drives the piston 4 to advance to the limit is effectively slowed down, by rotating the knob 16, the knob 16 drives the second gear 14 to rotate through the rotating shaft 15, the second gear 14 drives the screw 12 to rotate through the first gear 13, so that the adjusting block 10 can be adjusted to lift on the screw 12, the screw 12 is adjusted to lift to the first oil inlet 8 through the knob 16, the adjusting block 10 can further limit the flow of the hydraulic oil in the first oil inlet 8, the buffering speed is further reduced, when the piston rod 3 drives the piston 4 to contract, the hydraulic oil is discharged from the second oil guide hole 30 and the second oil inlet 27, when the piston 4 is about to contract to the limit, the bottom oil baffle plate 26 firstly contacts with the inner wall at the bottom end of the bottom buffering groove 29 and blocks the second oil guide hole 30, at this time, the hydraulic oil can only be discharged from the second oil inlet 27, and the bottom buffering sleeve 23 moves into the bottom buffering groove 29, the hydraulic oil can only be discharged from the second oil inlet 27 through the gap between the bottom buffering sleeve 23 and the bottom buffering, at this time, the discharge flow of the hydraulic oil is limited, so that the contraction speed when the piston 4 is about to contract to the limit is effectively reduced, the knob 16 on one side of the second oil inlet 27 is rotated to adjust the adjusting block 10 to move into the second oil inlet 27, the discharge flow of the hydraulic oil can be further limited, and the buffering speed is further reduced.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (8)
1. The utility model provides an adjustable buffer speed's hydraulic cylinder, includes cylinder (1), its characterized in that: the oil cylinder is characterized in that a cylinder cover (2) is fixedly connected to the top end of the cylinder barrel (1), a piston rod (3) is arranged inside the cylinder barrel (1), a piston (4) is fixedly connected to the bottom end of the piston rod (3), a top guide block (5) is fixedly connected to the inner wall of the top end of the cylinder barrel (1), a top buffer groove (6) is formed in the bottom end surface of the top guide block (5), an oil drainage groove (7) is formed in the top end surface of the top buffer groove (6), a first oil inlet (8) is fixedly connected to one side of the top end of the cylinder barrel (1), one end of the first oil inlet (8) is communicated with the top buffer groove (6), a first oil guide hole (17) is formed in the top end of the first oil inlet (8), one end of the first oil guide hole (17) is communicated with the first oil inlet (8), the other end of the first oil guide hole (17) is, the bottom guide block (28) is provided with a bottom buffer groove (29) on the surface of the top end, one side of the bottom end of the cylinder barrel (1) is fixedly connected with a second oil inlet (27), one end of the second oil inlet (27) is communicated with the bottom buffer groove (29), a second oil guide hole (30) is formed in the bottom end of the second oil inlet (27), one end of the second oil guide hole (30) is communicated with the second oil inlet (27), the other end of the second oil guide hole (30) is communicated with the bottom buffer groove (29), both the top guide block (5) and the bottom guide block (28) are internally provided with accommodating cavities (9), and an adjusting mechanism is arranged in each accommodating cavity (9);
the adjusting mechanism comprises an adjusting block (10), a stop block (11) is fixedly connected to the bottom end of the adjusting block (10), a screw hole is formed in the surface of the bottom end of the adjusting block (10), a screw rod (12) is connected to the bottom end of the adjusting block (10) through screw threads, a first gear (13) is fixedly connected to the bottom end of the screw rod (12), the bottom end of the screw rod (12) is rotatably connected with the inner wall of the accommodating cavity (9) through a bearing, a second gear (14) is arranged on one side of the first gear (13), one side of the second gear (14) is meshed with the first gear (13), a rotating shaft (15) is fixedly connected to one side of the second gear (14) far away from the first gear (13), one end of the rotating shaft (15) far away from the second gear (14) extends out of the cylinder barrel (1), and a knob (16) is fixedly connected to one end of the rotating shaft, the top end of the adjusting block (10) extends into the inner sides of the first oil inlet (8) and the second oil inlet (27) respectively;
the piston rod (3) top is fixedly sleeved with a top buffering column (18), the top buffering column (18) outside is fixedly sleeved with a top buffering sleeve (19), the top surface of the top buffering column (18) is provided with a first chute (20), a first spring (31) is arranged inside the first chute (20), the bottom end of the first spring (31) is fixedly connected with the inner wall of the first chute (20), the top end of the first spring (31) is fixedly connected with a top oil baffle plate (21), the bottom end of the piston (4) is fixedly connected with a bottom buffering column (22), the outer side of the bottom buffering column (22) is fixedly sleeved with a bottom buffering sleeve (23), the bottom surface of the bottom buffering column (22) is provided with a second chute (24), the inner side of the second chute (24) is provided with a second spring (25), the top end of the second spring (25) is fixedly connected with the inner wall of the second chute (24), the bottom end of the second spring (25) is fixedly connected with the bottom oil baffle plate (26).
2. A hydraulic ram having an adjustable buffer speed according to claim 1 wherein: the adjusting block (10) is provided with sealing gaskets at the joint of the top guide block (5) and the bottom buffer groove (29), and the rotating shaft (15) is rotatably connected with the inner wall of the cylinder barrel (1) through a sealing bearing.
3. A hydraulic ram having an adjustable buffer speed according to claim 1 wherein: the inner side of the top buffer groove (6) is matched with the top buffer sleeve (19), and the diameter of the top buffer groove (6) is larger than that of the top buffer sleeve (19).
4. A hydraulic ram having an adjustable buffer speed according to claim 1 wherein: the inner side of the bottom buffer groove (29) is matched with the bottom buffer sleeve (23), and the diameter of the bottom buffer groove (29) is larger than that of the bottom buffer sleeve (23).
5. A hydraulic ram having an adjustable buffer speed according to claim 1 wherein: the top buffer sleeve (19) and the bottom buffer sleeve (23) are both made of wear-resistant rubber materials.
6. A hydraulic ram having an adjustable buffer speed according to claim 1 wherein: the inner side of the first sliding groove (20) is connected with the top oil baffle plate (21) in a sliding mode.
7. A hydraulic ram having an adjustable buffer speed according to claim 1 wherein: the inner side of the second sliding chute (24) is connected with the bottom oil baffle plate (26) in a sliding way.
8. A hydraulic ram having an adjustable buffer speed according to claim 1 wherein: the top oil baffle plate (21) is arranged right below the oil drainage groove (7), and the bottom oil baffle plate (26) is arranged right above the bottom buffer groove (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326721.0A CN110939630A (en) | 2019-12-20 | 2019-12-20 | Hydraulic cylinder capable of adjusting buffer speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911326721.0A CN110939630A (en) | 2019-12-20 | 2019-12-20 | Hydraulic cylinder capable of adjusting buffer speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110939630A true CN110939630A (en) | 2020-03-31 |
Family
ID=69912483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911326721.0A Withdrawn CN110939630A (en) | 2019-12-20 | 2019-12-20 | Hydraulic cylinder capable of adjusting buffer speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110939630A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726000A (en) * | 2020-12-20 | 2021-04-30 | 龚财 | High-speed circular knitting machine is with formula of can slowing down arrestment mechanism |
| CN114312529A (en) * | 2021-12-03 | 2022-04-12 | 石川 | Box type transport vehicle supporting plate convenient to load |
| CN118188634A (en) * | 2024-03-13 | 2024-06-14 | 浙江沃德尔科技集团股份有限公司 | Hydraulic actuator stroke buffer structure and application method thereof |
-
2019
- 2019-12-20 CN CN201911326721.0A patent/CN110939630A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112726000A (en) * | 2020-12-20 | 2021-04-30 | 龚财 | High-speed circular knitting machine is with formula of can slowing down arrestment mechanism |
| CN112726000B (en) * | 2020-12-20 | 2022-07-12 | 杭州奥欣针纺有限公司 | High-speed circular knitting machine is with formula of can slowing down arrestment mechanism |
| CN114312529A (en) * | 2021-12-03 | 2022-04-12 | 石川 | Box type transport vehicle supporting plate convenient to load |
| CN114312529B (en) * | 2021-12-03 | 2023-06-23 | 湖南鸿欣达物流有限公司 | Box-type transport vehicle supporting plate convenient to load |
| CN118188634A (en) * | 2024-03-13 | 2024-06-14 | 浙江沃德尔科技集团股份有限公司 | Hydraulic actuator stroke buffer structure and application method thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200331 |
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| WW01 | Invention patent application withdrawn after publication |