CN112696397A - Buffer hydraulic oil cylinder - Google Patents
Buffer hydraulic oil cylinder Download PDFInfo
- Publication number
- CN112696397A CN112696397A CN202011534310.3A CN202011534310A CN112696397A CN 112696397 A CN112696397 A CN 112696397A CN 202011534310 A CN202011534310 A CN 202011534310A CN 112696397 A CN112696397 A CN 112696397A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- buffer
- piston
- sliding
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention relates to the technical field of hydraulic oil cylinders, in particular to a buffer hydraulic oil cylinder. The buffer hydraulic oil cylinder comprises a cylinder barrel; the first oil inlet is formed in the cylinder barrel and communicated with the inside of the cylinder barrel; the second oil inlet is formed in the cylinder barrel and communicated with the inside of the cylinder barrel; the cylinder cover is arranged on one side of the cylinder barrel; the piston is slidably mounted in the cylinder barrel, a placing groove is formed in one side of the piston, a groove is formed in the inner wall of one side of the placing groove, a first buffer assembly is mounted in the groove, and one side of the first buffer assembly extends out of the placing groove; a plurality of mounting grooves are annularly formed in the other side of the piston, and a plurality of second buffer assemblies are arranged in the mounting grooves. The buffering hydraulic oil cylinder provided by the invention has the advantages of simple structure, good buffering effect and stable operation.
Description
Technical Field
The invention relates to the technical field of hydraulic oil cylinders, in particular to a buffer hydraulic oil cylinder.
Background
The hydraulic oil cylinder is an actuating element in a hydraulic transmission system and is an energy conversion device for converting hydraulic energy into mechanical energy, and the hydraulic oil cylinder realizes reciprocating motion. The hydraulic cylinder has three types, including piston cylinder, plunger cylinder and swinging cylinder, and the piston cylinder and the plunger cylinder realize linear reciprocating motion to output speed and thrust and the swinging cylinder realizes reciprocating swinging to output angular speed and torque. The hydraulic cylinder may be used not only singly but also in combination of two or more or in combination with other mechanisms. To accomplish a particular function. The hydraulic cylinder has simple structure and reliable work and is widely applied to a hydraulic system of a machine tool.
The hydraulic cylinder that machinery trade was used at present does not have buffer function usually, wherein, when adopting the form of burning gasoline formula drive hydro-cylinder, can take place the condition that the fuel injection quantity increases, leads to thrust too violent in the twinkling of an eye, does not have buffer function hydro-cylinder stroke can take place the collision of different degrees when reaching the terminal, not only produces certain damage to the hydro-cylinder, influences hydraulic cylinder's stability simultaneously.
Therefore, there is a need to provide a new buffer hydraulic cylinder to solve the above technical problems.
Disclosure of Invention
The invention solves the technical problem of providing a buffering hydraulic oil cylinder which has simple structure, good buffering effect and stable operation.
In order to solve the technical problem, the buffer hydraulic oil cylinder provided by the invention comprises: the cylinder barrel comprises a cylinder barrel, a first oil inlet, a second oil inlet, a cylinder cover, a piston, a sealing element and a piston rod, wherein the first oil inlet is formed in the cylinder barrel, the first oil inlet is communicated with the inside of the cylinder barrel, the second oil inlet is formed in the cylinder barrel, and the second oil inlet is communicated with the inside of the cylinder barrel; the cylinder cover is arranged on one side of the cylinder barrel; the piston is slidably mounted in the cylinder barrel, a placing groove is formed in one side of the piston, a groove is formed in the inner wall of one side of the placing groove, a first buffer assembly is mounted in the groove, and one side of the first buffer assembly extends out of the placing groove; a plurality of mounting grooves are annularly formed in the other side of the piston, a plurality of second buffer assemblies are arranged in the mounting grooves, and one sides of the second buffer assemblies extend out of the mounting grooves; the sealing element is sleeved on the piston and is in sliding sealing connection with the inner wall of the cylinder barrel; the piston rod is fixedly installed on one side of the piston, one end of the piston rod penetrates through the cylinder cover and extends out of the cylinder barrel, and the piston rod is connected with the cylinder cover in a sliding and sealing mode.
Preferably, first buffering subassembly includes a fixed section of thick bamboo, a fixed section of thick bamboo fixed mounting is in the recess, slidable mounting has first slide bar in a fixed section of thick bamboo, the one end of first slide bar extends to outside the standing groove and fixed mounting have first buffer board, the cover is equipped with first spring on the first slide bar, the one end of first spring with first buffer board fixed connection, the other end of first spring with a fixed section of thick bamboo fixed connection.
Preferably, the inner walls of the two sides of the first fixed cylinder are provided with limit grooves, the two sides of the first sliding rod are fixedly provided with limit blocks, and the limit blocks are connected with the limit grooves in a sliding mode.
Preferably, the first buffer plate is matched with the placing groove.
Preferably, a first pressure relief channel is formed in the inner wall of one side of the groove, a first cavity is formed in the piston, the first cavity is communicated with the first pressure relief channel, a first supporting rod is fixedly mounted at one end of the first sliding rod, one end of the first supporting rod extends into the first pressure relief channel and is fixedly mounted with a first sealing plug, the first sealing plug is connected with the inner wall of the first pressure relief channel in a sealing and sliding mode, and first connecting channels are formed in the inner walls of the two sides of the first cavity.
Preferably, the second buffering subassembly includes the solid fixed cylinder of second, the solid fixed cylinder fixed mounting of second is in the mounting groove, slidable mounting has the second slide bar in the solid fixed cylinder of second, the one end of second slide bar extends to outside the mounting groove, it is a plurality of the one end of second slide bar is connected with same second buffer board, the second buffer board is the design of ring type, the piston rod is located second buffer board centre of a circle position department, the cover is equipped with the second spring on the second slide bar, the one end of second spring with second buffer board fixed connection, the other end of second spring with the solid fixed cylinder fixed connection of second.
Preferably, the inner walls of the two sides of the second fixed cylinder are fixedly provided with slide rails, the two sides of the second slide bar are fixedly provided with slide blocks, and the slide blocks are connected with the slide rails in a sliding manner.
Preferably, a second pressure release channel is formed in the inner wall of one side of the mounting groove, a plurality of second cavities are formed in the piston, the second cavities are communicated with the second pressure release channel, a second supporting rod is fixedly mounted at one end of the second sliding rod, one end of the second supporting rod extends into the second pressure release channel and is fixedly mounted with a second sealing plug, the second sealing plug is connected with the inner wall of the second pressure release channel in a sealing and sliding mode, and a second connecting channel is formed in the inner wall of one side of the second cavity.
Preferably, the cylinder barrel is fixedly sleeved with an installation flange, and the cylinder cover is connected with the installation flange through a plurality of bolts.
Preferably, the mounting flange is provided with an annular groove, the annular groove is internally provided with a rubber sealing ring, one side of the cylinder cover is fixedly provided with a fixing ring, the fixing ring is matched with the annular groove, and the fixing ring is contacted with the rubber sealing ring.
Compared with the related art, the buffering hydraulic oil cylinder provided by the invention has the following beneficial effects:
the invention provides a buffer hydraulic oil cylinder, which is characterized in that the two sides of a piston are protected in a buffering way through a first buffer assembly and a second buffer assembly, so that the oil cylinder is prevented from being collided to different degrees when the stroke of the oil cylinder reaches a terminal, the oil cylinder is damaged to a certain extent, and the stability of the hydraulic oil cylinder is influenced; the first pressure relief channel and the second pressure relief channel are arranged to perform pressure relief on the strong pressure side, so that the hydraulic oil cylinder is protected from being damaged; the invention has simple structure, good buffering effect and stable operation.
Drawings
FIG. 1 is a schematic structural view of a damping hydraulic cylinder according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of the portion B shown in FIG. 2;
FIG. 4 is an enlarged view of the portion C shown in FIG. 2;
FIG. 5 is a schematic structural view of a second embodiment of a hydraulic buffer cylinder provided in the present invention;
fig. 6 is an enlarged view of the portion D shown in fig. 5.
Reference numbers in the figures: 1. the cylinder barrel, 2, a first oil inlet, 3, a second oil inlet, 4, a cylinder cover, 5, a piston, 6, a sealing element, 7, a piston rod, 8, a placing groove, 9, a groove, 10, a first fixed cylinder, 12, a first sliding rod, 13, a first buffer plate, 14, a first spring, 15, a limiting groove, 16, a limiting block, 17, a first pressure relief channel, 18, a first supporting rod, 19, a first sealing plug, 20, a first cavity, 21, a first connecting channel, 22, a mounting groove, 23, a second fixed cylinder, 25, a second sliding rod, 26, a second buffer plate, 27, a second spring, 28, a sliding rail, 29, a sliding block, 30, a second pressure relief channel, 31, a second cavity, 32, a second supporting rod, 33, a second sealing plug, 34, a second connecting channel, 35, a mounting flange, 36, a bolt, 37, an annular groove, 38, a rubber sealing ring, 39 and a fixing ring.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
The first embodiment:
referring to fig. 1-4, in a first embodiment of the present invention, a damping hydraulic cylinder includes: the oil cylinder comprises a cylinder barrel 1, a first oil inlet 2, a second oil inlet 3, a cylinder cover 4, a piston 5, a sealing element 6 and a piston rod 7, wherein the first oil inlet 2 is arranged on the cylinder barrel 1, and the first oil inlet 2 is communicated with the inside of the cylinder barrel 1; the second oil inlet 3 is formed in the cylinder barrel 1, and the second oil inlet 3 is communicated with the inside of the cylinder barrel 1; the cylinder cover 4 is arranged on one side of the cylinder barrel 1; the piston 5 is slidably mounted in the cylinder barrel 1, a placing groove 8 is formed in one side of the piston 5, a groove 9 is formed in the inner wall of one side of the placing groove 8, a first buffering assembly is mounted in the groove 9, and one side of the first buffering assembly extends out of the placing groove 8; a plurality of mounting grooves 22 are annularly formed in the other side of the piston 5, a plurality of second buffer components are arranged in the mounting grooves 22, and one sides of the second buffer components extend out of the mounting grooves 22; the sealing element 6 is sleeved on the piston 5, and the sealing element 6 is connected with the inner wall of the cylinder barrel 1 in a sliding and sealing manner; the piston rod 7 is fixedly installed on one side of the piston 5, one end of the piston rod 7 penetrates through the cylinder cover 4 and extends out of the cylinder barrel 1, and the piston rod 7 is connected with the cylinder cover 4 in a sliding and sealing mode.
First buffer unit includes a fixed section of thick bamboo 10, a fixed section of thick bamboo 10 fixed mounting be in the recess 9, slidable mounting has first slide bar 12 in a fixed section of thick bamboo 10, the one end of first slide bar 12 extends to outside standing groove 8 and fixed mounting have a first buffer board 13, the cover is equipped with first spring 14 on the first slide bar 12, first spring 14 one end with a first buffer board 13 fixed connection, first spring 14 the other end with a fixed section of thick bamboo 10 fixed connection.
The limiting grooves 15 are formed in the inner walls of the two sides of the first fixing cylinder 10, limiting blocks 16 are fixedly mounted on the two sides of the first sliding rod 12, and the limiting blocks 16 are connected with the limiting grooves 15 in a sliding mode.
The first buffer plate 13 is adapted to the placement groove 8.
First pressure release channel 17 has been seted up on one side inner wall of recess 9, first cavity 20 has been seted up in the piston 5, first cavity 20 with first pressure release channel 17 is linked together, the one end fixed mounting of first slide bar 12 has first branch 18, the one end of first branch 18 extends to in the first pressure release channel 17 and fixed mounting have a first sealing plug 19, first sealing plug 19 with the inner wall sealing sliding connection of first pressure release channel 17, first connecting channel 21 has all been seted up on the both sides inner wall of first cavity 20.
The second buffer component includes the solid fixed cylinder 23 of second, the solid fixed cylinder 23 fixed mounting of second is in the mounting groove 22, slidable mounting has second slide bar 25 in the solid fixed cylinder 23 of second, the one end of second slide bar 25 extends to outside the mounting groove 22, it is a plurality of the one end of second slide bar 25 is connected with same second buffer board 26, second buffer board 26 is the design of ring type, piston rod 7 is located 26 centre of a circle positions department of second buffer board, the cover is equipped with second spring 27 on the second slide bar 25, the one end of second spring 27 with 26 fixed connection of second buffer board, the other end of second spring 27 with the solid fixed cylinder 23 fixed connection of second.
The second pressure release channel 30 has been seted up on one side inner wall of mounting groove 22, a plurality of second cavities 31 have been seted up in the piston 5, the second cavity 31 with the second pressure release channel 30 is linked together, the one end fixed mounting of second slide bar 25 has second branch 32, the one end of second branch 32 extends to in the second pressure release channel 30 and fixed mounting have a second sealing plug 33, second sealing plug 33 with the inner wall sealing sliding connection of second pressure release channel 30, second connecting channel 34 has all been seted up on one side inner wall of second cavity 20.
The working principle of the buffering hydraulic oil cylinder provided by the invention is as follows:
firstly, when the piston 5 moves to be close to the bottom side of the cylinder barrel 1, the first buffer plate 13 contacts the cylinder bottom, the first buffer plate 13 drives the first sliding rod 12 to move and compress the first spring 14 to play a buffering role, when the first sliding rod 12 continues to move, the first sliding rod 12 drives the first supporting rod 18 to move, the first supporting rod 18 drives the first sealing plug 19 to move, when the first sealing plug 19 moves into the first cavity 20, the first pressure relief channel 17 is communicated with the first connecting channel 21 to help pressure relief, and similarly, the second buffer component also utilizes the same principle to perform buffering.
Compared with the related art, the buffering hydraulic oil cylinder provided by the invention has the following beneficial effects:
the invention provides a buffer hydraulic oil cylinder, which is characterized in that the two sides of a piston 5 are protected in a buffering way through a first buffer component and a second buffer component, so that the oil cylinder stroke is prevented from colliding with different degrees when reaching a terminal, a certain damage is generated to the oil cylinder, and the stability of the hydraulic oil cylinder is influenced; the first pressure relief channel 17 and the second pressure relief channel 30 are arranged to perform pressure relief on the strong pressure side, so that the hydraulic oil cylinder is protected from being damaged; the invention has simple structure, good buffering effect and stable operation.
Second embodiment:
based on the hydraulic buffer cylinder provided in the first embodiment of the present application, a second embodiment of the present application proposes another hydraulic buffer cylinder. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further described with reference to the drawings and the following description.
Referring to fig. 5-6, the present embodiment is different from the first embodiment in that a mounting flange 35 is fixedly fastened to the cylinder barrel 1, and the cylinder head 4 is connected to the mounting flange 35 by a plurality of bolts 36.
The last ring channel 37 of having seted up of mounting flange 35, install rubber seal 38 in the ring channel 37, one side fixed mounting of cylinder cap 4 has solid fixed ring 39, gu fixed ring 39 with ring channel 37 looks adaptation, gu fixed ring 39 with rubber seal 38 contacts.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A damping hydraulic cylinder, comprising: the oil cylinder comprises a cylinder barrel (1), a first oil inlet (2), a second oil inlet (3), a cylinder cover (4), a piston (5), a sealing element (6) and a piston rod (7), wherein the first oil inlet (2) is formed in the cylinder barrel (1), and the first oil inlet (2) is communicated with the inside of the cylinder barrel (1); the second oil inlet (3) is formed in the cylinder barrel (1), and the second oil inlet (3) is communicated with the inside of the cylinder barrel (1); the cylinder cover (4) is installed on one side of the cylinder barrel (1), the piston (5) is installed in the cylinder barrel (1) in a sliding mode, a placing groove (8) is formed in one side of the piston (5), a groove (9) is formed in the inner wall of one side of the placing groove (8), a first buffering assembly is installed in the groove (9), and one side of the first buffering assembly extends out of the placing groove (8); a plurality of mounting grooves (22) are annularly formed in the other side of the piston (5), a plurality of second buffer assemblies are arranged in the mounting grooves (22), and one sides of the second buffer assemblies extend out of the mounting grooves (22); the sealing element (6) is sleeved on the piston (5), and the sealing element (6) is connected with the inner wall of the cylinder barrel (1) in a sliding and sealing manner; the piston rod (7) is fixedly installed on one side of the piston (5), one end of the piston rod (7) penetrates through the cylinder cover (4) and extends out of the cylinder barrel (1), and the piston rod (7) is connected with the cylinder cover (4) in a sliding and sealing mode.
2. The buffer hydraulic cylinder according to claim 1, wherein the first buffer assembly comprises a first fixed cylinder (10), the first fixed cylinder (10) is fixedly installed in the groove (9), a first sliding rod (12) is slidably installed in the first fixed cylinder (10), one end of the first sliding rod (12) extends out of the placing groove (8) and is fixedly installed with a first buffer plate (13), a first spring (14) is sleeved on the first sliding rod (12), one end of the first spring (14) is fixedly connected with the first buffer plate (13), and the other end of the first spring (14) is fixedly connected with the first fixed cylinder (10).
3. The buffer hydraulic oil cylinder according to claim 2, wherein the inner walls of the two sides of the first fixed cylinder (10) are respectively provided with a limiting groove (15), the two sides of the first sliding rod (12) are respectively and fixedly provided with a limiting block (16), and the limiting blocks (16) are slidably connected with the limiting grooves (15).
4. Buffer hydraulic cylinder according to claim 2, characterised in that the first buffer plate (13) is adapted to the placement groove (8).
5. The buffer hydraulic cylinder according to claim 2, wherein a first pressure relief channel (17) is formed in an inner wall of one side of the groove (9), a first cavity (20) is formed in the piston (5), the first cavity (20) is communicated with the first pressure relief channel (17), a first support rod (18) is fixedly mounted at one end of the first slide rod (12), one end of the first support rod (18) extends into the first pressure relief channel (17) and is fixedly mounted with a first sealing plug (19), the first sealing plug (19) is connected with the inner wall of the first pressure relief channel (17) in a sealing and sliding manner, and first connecting channels (21) are formed in inner walls of two sides of the first cavity (20).
6. Buffer hydraulic cylinder according to claim 1, characterised in that the second buffer assembly comprises a second fixed cylinder (23), the second fixed cylinder (23) is fixedly arranged in the mounting groove (22), a second sliding rod (25) is arranged in the second fixed cylinder (23) in a sliding way, one end of the second sliding rod (25) extends to the outside of the mounting groove (22), one end of the second sliding rods (25) is connected with the same second buffer plate (26), the second buffer plate (26) is designed in a circular ring shape, the piston rod (7) is positioned at the position of the circle center of the second buffer plate (26), a second spring (27) is sleeved on the second sliding rod (25), one end of the second spring (27) is fixedly connected with the second buffer plate (26), the other end of the second spring (27) is fixedly connected with the second fixed cylinder (23).
7. The buffer hydraulic oil cylinder according to claim 6, wherein sliding rails (28) are fixedly mounted on the inner walls of the two sides of the second fixed cylinder (23), sliding blocks (29) are fixedly mounted on the two sides of the second sliding rod (25), and the sliding blocks (29) are slidably connected with the sliding rails (28).
8. The buffer hydraulic cylinder according to claim 1, wherein a second pressure release channel (30) is formed in an inner wall of one side of the mounting groove (22), a plurality of second cavities (31) are formed in the piston (5), the second cavities (31) are communicated with the second pressure release channel (30), a second support rod (32) is fixedly mounted at one end of the second sliding rod (25), one end of the second support rod (32) extends into the second pressure release channel (30) and is fixedly mounted with a second sealing plug (33), the second sealing plug (33) is connected with the inner wall of the second pressure release channel (30) in a sealing and sliding manner, and a second connecting channel (34) is formed in an inner wall of one side of the second cavity (20).
9. Buffer hydraulic cylinder according to claim 1, characterized in that a mounting flange (35) is fixedly attached to the cylinder barrel (1), and the cylinder head (4) is connected to the mounting flange (35) by means of a plurality of bolts (36).
10. The buffer hydraulic oil cylinder according to claim 9, wherein the mounting flange (35) is provided with an annular groove (37), a rubber sealing ring (38) is installed in the annular groove (37), a fixing ring (39) is fixedly installed on one side of the cylinder cover (4), the fixing ring (39) is matched with the annular groove (37), and the fixing ring (39) is in contact with the rubber sealing ring (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011534310.3A CN112696397A (en) | 2020-12-22 | 2020-12-22 | Buffer hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011534310.3A CN112696397A (en) | 2020-12-22 | 2020-12-22 | Buffer hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112696397A true CN112696397A (en) | 2021-04-23 |
Family
ID=75510888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011534310.3A Withdrawn CN112696397A (en) | 2020-12-22 | 2020-12-22 | Buffer hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112696397A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020991A (en) * | 1999-07-06 | 2001-01-23 | Kayaba Ind Co Ltd | Piston assembly structure of hydraulic shock absorber |
| CN201559562U (en) * | 2009-11-28 | 2010-08-25 | 重汽集团专用汽车公司 | Hydraulic cylinder slow-down buffer for dumper |
| CN102562709A (en) * | 2011-12-30 | 2012-07-11 | 湖南特力液压有限公司 | Difunctional synchronous telescopic type multistage hydraulic cylinder and hydraulic device |
| CN205371147U (en) * | 2016-03-11 | 2016-07-06 | 合肥力恒液压系统有限公司 | From off -load formula hydro -cylinder |
| CN106246635A (en) * | 2016-08-29 | 2016-12-21 | 湖州华和金属制品有限公司 | From pressure release piston rod |
| KR20170108389A (en) * | 2016-03-17 | 2017-09-27 | 주식회사 만도 | Shock absorber component for railway car truck |
| CN206917971U (en) * | 2017-06-16 | 2018-01-23 | 江苏恒立液压股份有限公司 | Relief valve |
| CN209100379U (en) * | 2018-09-30 | 2019-07-12 | 上海东机液压工程有限公司 | A kind of hydraulic valve end of travel pressure relief device |
| CN211288307U (en) * | 2019-12-05 | 2020-08-18 | 上饶市超宏机械有限公司 | Hydraulic oil cylinder of lifting bracket of dumper |
-
2020
- 2020-12-22 CN CN202011534310.3A patent/CN112696397A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001020991A (en) * | 1999-07-06 | 2001-01-23 | Kayaba Ind Co Ltd | Piston assembly structure of hydraulic shock absorber |
| CN201559562U (en) * | 2009-11-28 | 2010-08-25 | 重汽集团专用汽车公司 | Hydraulic cylinder slow-down buffer for dumper |
| CN102562709A (en) * | 2011-12-30 | 2012-07-11 | 湖南特力液压有限公司 | Difunctional synchronous telescopic type multistage hydraulic cylinder and hydraulic device |
| CN205371147U (en) * | 2016-03-11 | 2016-07-06 | 合肥力恒液压系统有限公司 | From off -load formula hydro -cylinder |
| KR20170108389A (en) * | 2016-03-17 | 2017-09-27 | 주식회사 만도 | Shock absorber component for railway car truck |
| CN106246635A (en) * | 2016-08-29 | 2016-12-21 | 湖州华和金属制品有限公司 | From pressure release piston rod |
| CN206917971U (en) * | 2017-06-16 | 2018-01-23 | 江苏恒立液压股份有限公司 | Relief valve |
| CN209100379U (en) * | 2018-09-30 | 2019-07-12 | 上海东机液压工程有限公司 | A kind of hydraulic valve end of travel pressure relief device |
| CN211288307U (en) * | 2019-12-05 | 2020-08-18 | 上饶市超宏机械有限公司 | Hydraulic oil cylinder of lifting bracket of dumper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205578403U (en) | Butter type hydraulic oil cylinder | |
| CN2937586Y (en) | Compound hydraulic cylinder with quick driving device | |
| CN211693050U (en) | Floating type buffer hydraulic oil cylinder | |
| CN112696397A (en) | Buffer hydraulic oil cylinder | |
| CN211259197U (en) | Buffer hydraulic oil cylinder | |
| CN214788319U (en) | Multi-chamber hydraulic cylinder with bidirectional buffering function | |
| CN214367449U (en) | Bidirectional damping buffer device | |
| CN101847526A (en) | Hydraulic spring operation mechanism | |
| CN211116913U (en) | Sleeve type lifting oil cylinder | |
| CN114576235A (en) | Hydraulic cylinder and working machine | |
| CN209781333U (en) | Double-blade oscillating hydraulic oil cylinder | |
| CN113182794A (en) | Assembling equipment for brake caliper piston and dust cover and using method thereof | |
| CN219262851U (en) | Hydraulic cylinder with built-in stroke detection device | |
| CN219809213U (en) | Hydraulic cylinder with buffering effect | |
| CN214742443U (en) | Automatic oil supplementing hydraulic cylinder | |
| CN214661209U (en) | Hydraulic cylinder | |
| CN215672979U (en) | Hydraulic pressure aluminium material shaping pressure device | |
| CN218971546U (en) | Double-section extrusion oil pressure cylinder | |
| CN217055807U (en) | Hydraulic cylinder and working machine | |
| CN212509054U (en) | Multidirectional band-type brake type oil cylinder with self-locking function | |
| CN217481648U (en) | Oil cylinder with supercharging function | |
| CN218644569U (en) | Special oil cylinder for coal mine drilling machine | |
| CN215762532U (en) | Bidirectional hydraulic oil cylinder | |
| CN220118435U (en) | Buffering type hydraulic oil cylinder | |
| CN215521193U (en) | Piston for reciprocating piston compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210423 |
|
| WW01 | Invention patent application withdrawn after publication |