CN111977547B - Hydraulic device with buffering function - Google Patents
Hydraulic device with buffering function Download PDFInfo
- Publication number
- CN111977547B CN111977547B CN202010892594.7A CN202010892594A CN111977547B CN 111977547 B CN111977547 B CN 111977547B CN 202010892594 A CN202010892594 A CN 202010892594A CN 111977547 B CN111977547 B CN 111977547B
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- Prior art keywords
- oil
- column
- groove
- inner column
- shell
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
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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
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a hydraulic device with a buffering function, which comprises an inner column and a shell, wherein the inner column is conical in shape, the front end of the inner column is closed, the shell is sleeved outside the inner column, a base is arranged at the bottom of the inner column, and a plurality of vent holes are formed in the base; the ring channel has been seted up at the outer wall middle part of inner prop, and a plurality of spouts have been seted up to the outside circumference of lower extreme of inner prop, and the upper end outside of inner prop is equipped with the shape and has seted up ring channel, spout and logical oil bath for the logical oil groove of buckling the shape on the inner wall of casing. After the installation is finished, the taper is easier to compress and the sealing effect is better; when hydraulic oil passes through the oil through groove and the spiral holes in the oil through column, the passing speed can be greatly reduced, and a good buffering effect is achieved.
Description
Technical Field
The invention belongs to the technical field of hydraulic cylinders, and particularly relates to a hydraulic device with a buffering function.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. The hydraulic device is used for realizing weight support, when the weight needs to be lowered, hydraulic oil is still needed for supporting and slowly releasing, the phenomenon that the weight is damaged or a hydraulic system is damaged due to large impact force is prevented, and therefore a hydraulic cylinder with a buffering function, which can solve the problems, is urgently needed.
Disclosure of Invention
In view of the problems in the prior art, the present invention provides a hydraulic device with a buffering function, which can realize a hydraulic device with a buffering function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hydraulic device with a buffering function comprises an inner column and a shell, wherein the inner column is conical in shape, the front end of the inner column is closed, the shell is sleeved outside the inner column, a base is installed at the bottom of the inner column, a plurality of vent holes are formed in the base, the lower end of the shell is abutted against the base, an inner cavity is formed in the center of the inner column, a piston is installed in the inner cavity in a sliding mode, the inner cavity is divided into a first oil cavity and a second oil cavity which are arranged up and down by the piston, an output rod is installed at the upper end of the piston, the output rod penetrates through the upper walls of the inner column and the shell and extends to the outside, and an oil inlet pipe is installed at the bottom of the inner cavity;
the outer wall middle part of inner prop has seted up the ring channel, a plurality of spouts have been seted up to the outside circumference of lower extreme of inner prop, the upper end outside of inner prop is equipped with the logical oil groove of shape for buckling the shape, ring channel, spout and logical oil groove have also been seted up on the inner wall of casing, ring channel, spout and the logical oil groove looks adaptation of logical oil groove, the ring channel, the spout and the logical oil groove of seting up on oil groove and the inner prop seted up on the casing, when the casing is fixed cup joints on the inner prop: the shell and the annular groove formed on the inner column are combined to form an annular slideway; the shell and the sliding chute arranged on the inner column are combined into a linear slideway; the shell and the oil through groove formed on the inner column are combined to form an oil through passage; the one end and the annular slide intercommunication of straight line form slide, the other end and air vent one-to-one and intercommunication, the one end that leads to the oil duct passes through siphunculus and first oil pocket intercommunication, the other end and the annular slide intercommunication that lead to the oil duct, the inside that the slide was sharply formed is equipped with slidable, has sealing function's traveller.
Preferably, the oil passing groove comprises a plurality of straight grooves which are circumferentially distributed on the outer side of the inner column and are arranged along the length direction of the inner column, and the straight grooves are connected into a through groove through curved grooves.
Preferably, the inside of straight flute is equipped with logical oil column, be equipped with the lug on the lateral wall of logical oil column, seted up the recess on the lateral wall of straight flute, lug and recess looks adaptation, the inside of logical oil column is seted up and is run through logical oil column both ends spiral hole.
Preferably, the inside of the straight slide way is provided with a spring, one end of the spring is connected to the sliding column, and the other end of the spring is connected to the lower end of the straight slide way.
Preferably, the lower end of the housing is mounted on the base by bolts.
Preferably, a sealing ring is arranged between the front end part of the inner column and the shell.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the inner column and the shell are both designed into tapered columns, so that the production and installation are easy, and the oil through groove, the annular groove and the sliding groove are formed on the inner side wall of the tapered shell and the outer wall of the inner column, so that after the installation is finished, the taper is easier to compress, and the sealing effect is better;
(2) according to the invention, the oil through groove is formed in the outer wall of the inner column, the sliding groove is formed in the bottom of the inner column, and the plurality of oil through columns are arranged in the middle of the oil through groove, so that when hydraulic oil passes through the oil through groove and the spiral holes in the oil through columns, the passing speed can be greatly reduced, and a good buffering effect is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the connection of the housing and the inner column of the present invention;
FIG. 3 is an internal cross-sectional view of the present invention;
fig. 4 is an enlarged view of the invention at a in fig. 3.
Description of reference numerals:
1. the oil inlet pipe comprises a shell, 2, a base, 3, an output rod, 4, an inner column, 5, a spring, 6, a sliding column, 7, an oil through groove, 8, an oil through column, 9, a sliding groove, 10, an oil through groove, 11, an annular groove, 12, an oil inlet pipe, 13, a bolt, 14, a bump, 15, a through pipe, 16, a piston, 17, a first oil cavity, 18 and a second oil cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 4, a hydraulic device with a buffering function includes an inner column 4 having a conical shape and a closed front end, and a housing 1 sleeved outside the inner column 4, wherein a base 2 is installed at the bottom of the inner column 4, a plurality of vent holes 10 are formed in the base 2, the lower end of the housing 1 is abutted against the base 2, a seal ring is arranged between the front end of the inner column 4 and the housing 1, the seal effect is better, the lower end of the housing 1 is installed on the base 2 through a bolt 13, the inner column 4 and the housing 1 are both conical columns having a flared rear end and a closed front end, and after being screwed down through the bolt 13, the hydraulic device can be attached more and has a better seal effect; an inner cavity is formed in the center of the inner column 4, a piston 16 is slidably mounted in the inner cavity, the inner cavity is divided into a first oil cavity 17 and a second oil cavity 18 which are arranged up and down by the piston 16, an output rod 3 is mounted at the upper end of the piston 16, the output rod 3 penetrates through the inner column 4 and the upper wall of the shell 1 and extends to the outside, an oil inlet pipe 12 is mounted at the bottom of the inner cavity, and the oil inlet pipe 12 injects hydraulic oil into the second oil cavity 18 to drive the output rod 3 to extend out of the device;
the middle part of the outer wall of the inner column 4 is provided with an annular groove 11, the outer circumference of the lower end of the inner column 4 is provided with a plurality of sliding grooves 9, the outer part of the upper end of the inner column 4 is provided with an oil through groove 7 in a bent shape, the inner wall of the shell 1 is also provided with the annular groove 11, the sliding grooves 9 and the oil through groove 7, the oil through groove 7 comprises a plurality of straight grooves which are circumferentially distributed on the outer side of the inner column 4 and are arranged along the length direction of the inner column 4, an oil through column 8 is arranged inside the straight grooves, the side wall of the oil through column 8 is provided with a convex block 14, the side wall of the straight grooves is provided with grooves, the convex block 14 is matched with the grooves, the oil through column 8 is internally provided with spiral holes which penetrate through two ends of the oil column 8, the spiral holes are only provided with a single inlet and outlet, the inner oil path of the oil through column 8 is spiral shape, so that the friction force passing through can be increased and the flow rate can be reduced, and the plurality of straight grooves are connected into a through groove, annular groove 11, the spout 9 of seting up on casing 1 and lead to annular groove 11, spout 9 and the logical 7 looks adaptations of oil groove of seting up on oil groove 7 and the inner prop 4, when casing 1 is fixed cup joints on inner prop 4: the shell 1 and an annular groove 11 formed on the inner column 4 are combined to form an annular slideway; the shell 1 and a sliding chute 9 formed on the inner column 4 are combined to form a linear slideway, a spring 5 is arranged inside the linear slideway, one end of the spring 5 is connected to a sliding column 6, and the other end of the spring is connected to the lower end of the linear slideway; the shell 1 and an oil through groove 7 formed in the inner column 4 are combined to form an oil through passage; the one end and the annular slide intercommunication of straight line shape slide, the other end and air vent one-to-one and intercommunication, the one end that leads to the oil duct passes through siphunculus 15 and first oil pocket 17 intercommunication, the other end and the annular slide intercommunication that lead to the oil duct, the inside that the straight line appears the slide is equipped with slidable, has the traveller 6 of sealing function, and hydraulic oil flows in the oil duct, can drive traveller 6 and slide from top to bottom, and when traveller 6 glides downwards, the inside hydraulic oil of oil duct increases, and when upwards sliding, the inside hydraulic oil of oil duct reduces.
The device is used for supporting a heavy object, when the heavy object needs to be jacked up, when the output rod 3 of the device extends, hydraulic oil is injected into the second oil cavity 18 through the oil inlet pipe 12, in the process that the piston 16 slides upwards, the hydraulic oil in the first oil cavity 17 is injected into the oil through the through pipe 15, the hydraulic oil pushes the sliding columns 6 to slide downwards, the compression springs 5 of the sliding columns 6 slide towards the bottoms of the linear slideways, when the heavy object needs to be put down, the oil injection into the oil inlet pipe 12 is stopped, the piston 16 slides downwards under the pressure of the heavy object, in the sliding process, the hydraulic oil drives the sliding columns 6 to slide upwards and slowly, and when the hydraulic oil passes through the oil through grooves 7 and the oil through columns 8, the double speed reduction is realized, the impact force is prevented from being large, and damage is caused to the supported object and the hydraulic cylinder.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A hydraulic device with a buffering function is characterized in that: the oil-gas separation device comprises an inner column (4) which is conical and is provided with a closed front end and a shell (1) sleeved outside the inner column (4), wherein a base (2) is installed at the bottom of the inner column (4), a plurality of vent holes (10) are formed in the base (2), the lower end of the shell (1) is tightly abutted to the base (2), an inner cavity is formed in the center of the inner column (4), a piston (16) is installed in the inner cavity in a sliding mode, the inner cavity is divided into a first oil cavity (17) and a second oil cavity (18) which are arranged up and down by the piston (16), an output rod (3) is installed at the upper end of the piston (16), the output rod (3) penetrates through the upper walls of the inner column (4) and the shell (1) and extends to the outside, and an oil inlet pipe (12) is installed at the bottom of the inner cavity;
annular groove (11) have been seted up at the outer wall middle part of inner prop (4), a plurality of spouts (9) have been seted up to the outside circumference of lower extreme of inner prop (4), the upper end outside of inner prop (4) is equipped with logical oil groove (7) of shape for the shape of buckling, annular groove (11), spout (9) and logical oil groove (7) have also been seted up on the inner wall of casing (1), annular groove (11), spout (9) and logical oil groove (7) of seting up on casing (1) and inner prop (4) annular groove (11), spout (9) and logical oil groove (7) looks adaptation, when casing (1) is fixed cup joints on inner prop (4): the shell (1) and an annular groove (11) formed on the inner column (4) are combined to form an annular slideway; the shell (1) and a sliding chute (9) arranged on the inner column (4) are combined into a linear slideway; the shell (1) and an oil through groove (7) formed on the inner column (4) are combined to form an oil through passage; one end of the linear slideway is communicated with the annular slideway, the other end of the linear slideway is in one-to-one correspondence with the vent holes and is communicated with the vent holes, one end of the oil through passage is communicated with the first oil cavity (17) through a through pipe (15), the other end of the oil through passage is communicated with the annular slideway, and a sliding column (6) which can slide and has a sealing function is arranged inside the linear slideway;
when the output rod (3) extends, hydraulic oil is injected into the second oil cavity (18) through the oil inlet pipe (12), in the process that the piston (16) slides upwards, the hydraulic oil in the first oil cavity (17) is injected into the oil through the through pipe (15), the hydraulic oil pushes the sliding column (6) to slide downwards, and the compression spring (5) of the sliding column (6) slides towards the bottom of the linear slideway.
2. The hydraulic device with the buffering function according to claim 1, wherein the oil through groove (7) comprises a plurality of straight grooves which are circumferentially distributed on the outer side of the inner column (4) and arranged along the length direction of the inner column (4), and the plurality of straight grooves are connected into a through groove through curved grooves.
3. The hydraulic device with the buffering function according to claim 2, wherein an oil through column (8) is arranged inside the straight groove, a protruding block (14) is arranged on a side wall of the oil through column (8), a groove is formed in the side wall of the straight groove, the protruding block (14) is matched with the groove, and a spiral hole penetrating through two ends of the oil through column (8) is formed inside the oil through column (8).
4. A hydraulic device with buffer function according to claim 3, characterized in that the linear slideway is internally provided with a spring (5), one end of the spring (5) is connected to the sliding column (6), and the other end is connected to the lower end of the linear slideway.
5. A hydraulic device with damping function according to claim 4, characterized in that the lower end of the housing (1) is mounted on the foundation (2) by means of bolts (13).
6. A hydraulic device with buffer function according to claim 5, characterized in that a sealing ring is arranged between the front end of the inner column (4) and the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892594.7A CN111977547B (en) | 2020-08-31 | 2020-08-31 | Hydraulic device with buffering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010892594.7A CN111977547B (en) | 2020-08-31 | 2020-08-31 | Hydraulic device with buffering function |
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| Publication Number | Publication Date |
|---|---|
| CN111977547A CN111977547A (en) | 2020-11-24 |
| CN111977547B true CN111977547B (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010892594.7A Active CN111977547B (en) | 2020-08-31 | 2020-08-31 | Hydraulic device with buffering function |
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| CN (1) | CN111977547B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5147018A (en) * | 1989-03-02 | 1992-09-15 | Kajima Corporation | Cylinder lock device for use in structure |
| EP3205892A1 (en) * | 2016-02-09 | 2017-08-16 | FESTO AG & Co. KG | Fluid actuated linear unit |
| CN110630582A (en) * | 2019-09-10 | 2019-12-31 | 长沙理工大学 | Cylinder energy storage type hydraulic cylinder |
| CN111412194A (en) * | 2020-03-30 | 2020-07-14 | 邵玉强 | Oil cylinder with buffering function |
| CN212954085U (en) * | 2020-08-31 | 2021-04-13 | 徐州硕辰液压工程机械有限公司 | Hydraulic device with buffering function |
-
2020
- 2020-08-31 CN CN202010892594.7A patent/CN111977547B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5147018A (en) * | 1989-03-02 | 1992-09-15 | Kajima Corporation | Cylinder lock device for use in structure |
| EP3205892A1 (en) * | 2016-02-09 | 2017-08-16 | FESTO AG & Co. KG | Fluid actuated linear unit |
| CN110630582A (en) * | 2019-09-10 | 2019-12-31 | 长沙理工大学 | Cylinder energy storage type hydraulic cylinder |
| CN111412194A (en) * | 2020-03-30 | 2020-07-14 | 邵玉强 | Oil cylinder with buffering function |
| CN212954085U (en) * | 2020-08-31 | 2021-04-13 | 徐州硕辰液压工程机械有限公司 | Hydraulic device with buffering function |
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| Publication number | Publication date |
|---|---|
| CN111977547A (en) | 2020-11-24 |
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