CN211501168U - Pure-step hydraulic multistage lifting type oil cylinder - Google Patents
Pure-step hydraulic multistage lifting type oil cylinder Download PDFInfo
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- CN211501168U CN211501168U CN201921824367.XU CN201921824367U CN211501168U CN 211501168 U CN211501168 U CN 211501168U CN 201921824367 U CN201921824367 U CN 201921824367U CN 211501168 U CN211501168 U CN 211501168U
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- 210000004907 gland Anatomy 0.000 claims abstract description 16
- 230000008901 benefit Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 230000006872 improvement Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 78
- 239000012530 fluid Substances 0.000 description 13
- 238000005457 optimization Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a pure step hydraulic multi-stage lifting oil cylinder, which has reasonable structure, reliable use, easy assembly, high lifting speed and stable retraction; the method comprises the following steps: a cylinder barrel, a first-stage cylinder barrel and a second-stage cylinder barrel; a primary cylinder barrel is sleeved in the cylinder barrel, and a secondary cylinder barrel is sleeved in the primary cylinder barrel; a piston is arranged in the second-stage cylinder barrel, and one side of the piston is connected with the third-stage piston rod through threads; one ends of the cylinder barrel, the first-stage cylinder barrel and the second-stage cylinder barrel are respectively provided with a gland, and the gland threads are connected with the cylinder barrel, the first-stage cylinder barrel and the second-stage cylinder barrel; a cylinder cover is arranged at one end of the second-stage cylinder barrel and is connected with the second-stage cylinder barrel through a gland; through the improvement to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting, it is rational in infrastructure to have, uses reliably, easily assembles, and lifting speed is fast, the steady advantage of withdrawal to effectual solution the utility model provides a problem and not enough.
Description
Technical Field
The utility model relates to a multistage hydro-cylinder technical field, more specifically the theory that says so especially relates to a pure step hydraulic pressure multistage formula hydro-cylinder that lifts.
Background
The multi-stage lifting oil cylinder is a hydraulic cylinder with a multi-stage cylinder barrel, which can obtain a long working stroke, wherein the oil cylinders are mainly divided into a single-acting oil cylinder and a double-acting oil cylinder, and the single-acting oil cylinder can only be reset by the dead weight of a piston or external load force.
When using current multi-stage lift cylinder of single action, the speed that the hydro-cylinder withdraws to reset is very fast, under the effect of impact force, causes the damage of cylinder body part easily, and the speed is slower in pushing out of this type of hydro-cylinder of current in addition, and difficult assembly is used, uses the reliability relatively poor, can not satisfy people's demand.
In view of this, research and improvement are carried out to solve the existing problems, and a pure step hydraulic multi-stage lifting type oil cylinder is provided, aiming at achieving the purposes of solving the problems and improving the practical value through the technology.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pure step hydraulic pressure multistage formula hydro-cylinder of lifting to the speed that the hydro-cylinder withdrawal that proposes resets among the above-mentioned background of the solution is very fast, under the effect of impulsive force, causes the damage of cylinder body part easily, and the hydro-cylinder release speed is slower, and difficult assembly is used, uses the relatively poor problem of reliability and not enough.
In order to achieve the above object, the utility model provides a pure step hydraulic pressure multistage formula hydro-cylinder of lifting is reached by following concrete technological means:
a pure step hydraulic multi-stage lifting oil cylinder has reasonable structure, reliable use, easy assembly, high lifting speed and stable retraction; the method comprises the following steps: the cylinder comprises a cylinder barrel, a primary cylinder barrel, a secondary cylinder barrel, a piston, a tertiary piston rod, a gland, a cylinder cover, a sealing part, a pressing ring, an oil nozzle, a ball valve rod, a first oil port and a second oil port; a primary cylinder barrel is sleeved in the cylinder barrel, and a secondary cylinder barrel is sleeved in the primary cylinder barrel; a piston is arranged in the second-stage cylinder barrel, and one side of the piston is connected with the third-stage piston rod through threads; one ends of the cylinder barrel, the first-stage cylinder barrel and the second-stage cylinder barrel are respectively provided with a gland, and the gland threads are connected with the cylinder barrel, the first-stage cylinder barrel and the second-stage cylinder barrel; a cylinder cover is arranged at one end of the second-stage cylinder barrel and is connected with the second-stage cylinder barrel through a gland; a pressing ring is arranged on one side of the cylinder cover and is connected with the cylinder cover through a bolt; sealing parts are arranged on the inner sides of the end parts of the cylinder barrel, the primary cylinder barrel and the cylinder cover; the other end of the cylinder barrel is provided with a slotted hole for accommodating the oil nozzle and the ball head valve rod, and the oil nozzle is connected with the cylinder barrel through threads; the ball valve rod is arranged at the lower end of the oil nozzle and is connected with the cylinder barrel through a spring; the other end of the cylinder barrel is provided with a first oil port and a second oil port, and the first oil port and the second oil port are communicated with the slotted hole.
As the further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting the ladder slotted hole has all been seted up to the inboard of cylinder, one-level cylinder and cylinder cap tip, and sealing member installs in the ladder slotted hole.
As a further optimization of this technical scheme, the utility model relates to a multistage formula hydro-cylinder that lifts of pure step hydraulic pressure sealing member comprises clamping ring, copper ring, the clamp a plurality of sealing washer of establishing between clamping ring and copper ring, just the sealing washer is V type sealing washer.
As the further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting the rod end of bulb valve rod is connected with the cylinder through the slip mode, and the bulb end of bulb valve rod and the lower extreme looks butt of glib talker.
As a further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting the size of first hydraulic fluid port is greater than the size of second hydraulic fluid port.
As a further optimization of this technical scheme, the utility model relates to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting the through-hole with second hydraulic fluid port matched with is seted up at the middle part of glib talker, and the second hydraulic fluid port passes through the through-hole is linked together with the inboard of glib talker.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses a ladder slotted hole has all been seted up to the inboard of cylinder, one-level cylinder and cylinder cap tip, and sealing element installs setting in the ladder slotted hole can install sealing element in the ladder slotted hole, makes things convenient for the assembly of hydro-cylinder.
2. The utility model discloses a rod end of bulb valve rod is connected with the cylinder through the slip mode, and the setting of the lower extreme looks butt of the bulb end of bulb valve rod and glib talker, and the back is got into from the glib talker to the high pressure oil, and the oil pressure is greater than the elasticity of spring, makes bulb valve rod lapse and open first hydraulic fluid port, and in the high pressure oil got into the jar simultaneously through first hydraulic fluid port and second hydraulic fluid port, realized stretching out fast of piston rod and cylinder.
3. The utility model discloses the size of first hydraulic fluid port is greater than the setting of the size of second hydraulic fluid port, and when the hydro-cylinder withdrawal, hydraulic oil in the jar can only be through the second hydraulic fluid port oil return of small-size, under the dead weight effect of load, makes piston rod and cylinder slowly withdraw, avoids causing the damage because of the withdrawal is too fast to the cylinder body.
4. The utility model discloses a to the improvement of a pure step hydraulic pressure multistage formula hydro-cylinder of lifting, it is rational in infrastructure to have, uses reliably, easily assembles, and it is fast to lift, the steady advantage of withdrawal to effectual solution the utility model provides a problem and not enough.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A of the present invention;
fig. 3 is an enlarged schematic structural diagram of the position B of the present invention.
In the figure: the cylinder comprises a cylinder barrel 1, a first-stage cylinder barrel 2, a second-stage cylinder barrel 3, a piston 4, a third-stage piston rod 5, a gland 6, a cylinder cover 7, a sealing part 8, a pressing ring 9, an oil nozzle 10, a ball valve rod 11, a first oil port 12 and a second oil port 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1 to 3, the utility model provides a specific technical implementation scheme of a pure step hydraulic multi-stage lifting cylinder:
a pure step hydraulic multi-stage lifting oil cylinder has reasonable structure, reliable use, easy assembly, high lifting speed and stable retraction; the method comprises the following steps: the cylinder comprises a cylinder barrel 1, a first-stage cylinder barrel 2, a second-stage cylinder barrel 3, a piston 4, a third-stage piston rod 5, a gland 6, a cylinder cover 7, a sealing part 8, a pressing ring 9, an oil nozzle 10, a ball valve rod 11, a first oil port 12 and a second oil port 13; a primary cylinder barrel 2 is sleeved in the cylinder barrel 1, and a secondary cylinder barrel 3 is sleeved in the primary cylinder barrel 2; a piston 4 is arranged in the second-stage cylinder barrel 3, and one side of the piston 4 is connected with a third-stage piston rod 5 through threads; one ends of the cylinder barrel 1, the primary cylinder barrel 2 and the secondary cylinder barrel 3 are respectively provided with a gland 6, and the gland 6 is connected with the cylinder barrel 1, the primary cylinder barrel 2 and the secondary cylinder barrel 3 through threads; one end of the second-stage cylinder barrel 3 is provided with a cylinder cover 7, and the cylinder cover 7 is connected with the second-stage cylinder barrel 3 through a gland 6; a pressing ring 9 is arranged on one side of the cylinder cover 7, and the pressing ring 9 is connected with the cylinder cover 7 through a bolt; sealing parts 8 are arranged on the inner sides of the end parts of the cylinder barrel 1, the first-stage cylinder barrel 2 and the cylinder cover 7; the other end of the cylinder barrel 1 is provided with a slotted hole for accommodating the oil nozzle 10 and the ball valve rod 11, and the oil nozzle 10 is connected with the cylinder barrel 1 through threads; the ball valve rod 11 is arranged at the lower end of the oil nozzle 10, and the ball valve rod 11 is connected with the cylinder barrel 1 through a spring; the other end of the cylinder barrel 1 is provided with a first oil port 12 and a second oil port 13, and the first oil port 12 and the second oil port 13 are both communicated with the slotted hole.
Specifically, the ladder slotted hole has all been seted up to the inboard of cylinder 1, one- level cylinder 2 and 7 tip of cylinder cap, and seal part 8 installs in the ladder slotted hole, can install seal part 8 in the ladder slotted hole, and wherein cylinder 1 is connected with one-level cylinder 2 through seal part 8, one-level cylinder 2 is connected with second grade cylinder 3 through seal part 8, cylinder cap 7 is connected with tertiary piston rod 5 through seal part 8.
Specifically, the sealing component 8 is composed of a pressure ring, a copper ring and a plurality of sealing rings clamped between the pressure ring and the copper ring, and the sealing rings are V-shaped sealing rings and can play a role in dust sealing.
Specifically, the rod end of ball valve rod 11 is connected with cylinder 1 through the slip mode, and the lower extreme looks butt of ball end and glib talker 10 of ball valve rod 11, and high-pressure oil gets into the back from glib talker 10, and the oil pressure is greater than the elasticity of spring, makes ball valve rod 11 lapse and open first hydraulic fluid port 12, and high-pressure oil gets into the jar simultaneously through first hydraulic fluid port 12 and second hydraulic fluid port 13 in, realizes stretching out fast of one-level cylinder 2, second grade cylinder 3 and tertiary piston rod 5.
Specifically, the size of the first oil port 12 is larger than that of the second oil port 13, when the oil cylinder retracts, the lower end of the oil nozzle 10 is plugged by the ball head of the ball head valve rod 11, hydraulic oil in the oil cylinder can only return oil through the second oil port 13 with a small size, and under the action of the dead weight of a load, the first-stage cylinder barrel 2, the second-stage cylinder barrel 3 and the third-stage piston rod 5 are slowly retracted, so that the damage to the cylinder body due to too fast retraction is avoided.
Specifically, a through hole matched with the second oil port 13 is formed in the middle of the oil nozzle 10, and the second oil port 13 is communicated with the inner side of the oil nozzle 10 through the through hole.
The method comprises the following specific implementation steps:
when the oil cylinder is used, high-pressure oil enters from the oil nozzle 10, because the oil pressure is greater than the elastic force of the spring, the ball head valve rod 11 slides downwards and opens the first oil port 12, the high-pressure oil enters the cylinder through the first oil port 12 and the second oil port 13 simultaneously, the high-pressure oil pushes the piston 4, the first-stage cylinder barrel 2, the second-stage cylinder barrel 3 and the third-stage piston rod 5 extend out quickly, when the oil cylinder retracts, the oil pressure at the oil nozzle 10 is reduced, the spring on the ball head valve rod 11 recovers the original state at the moment, the ball head of the ball head valve rod 11 plugs the lower end of the oil nozzle 10, hydraulic oil in the cylinder can only return through the second oil port 13 with small size, under the self-weight action of a load, the first-stage cylinder barrel 2, the second-stage cylinder barrel 3 and the third.
In summary, the following steps: according to the pure-step hydraulic multi-stage lifting type oil cylinder, the stepped slotted holes are formed in the inner sides of the cylinder barrel, the first-stage cylinder barrel and the end part of the cylinder cover, and the sealing parts are arranged in the stepped slotted holes, so that the sealing parts can be arranged in the stepped slotted holes, and the oil cylinder is convenient to assemble; the rod end of the ball valve rod is connected with the cylinder barrel in a sliding mode, and the ball end of the ball valve rod is abutted to the lower end of the oil nozzle, so that after high-pressure oil enters from the oil nozzle, the oil pressure is greater than the elastic force of a spring, the ball valve rod slides downwards and opens the first oil port, the high-pressure oil enters the cylinder through the first oil port and the second oil port simultaneously, and the piston rod and the cylinder barrel stretch out quickly; through the arrangement that the size of the first oil port is larger than that of the second oil port, when the oil cylinder retracts, hydraulic oil in the cylinder can only return through the second oil port with small size, and the piston rod and the cylinder barrel are slowly retracted under the self-weight action of a load, so that the damage to the cylinder body caused by too fast retraction is avoided; through the improvement to a pure step hydraulic pressure multistage formula hydro-cylinder of lifting, it is rational in infrastructure to have, uses reliably, easily assembles, and lifting speed is fast, the steady advantage of withdrawal to effectual solution the utility model provides a problem and not enough.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a pure multistage formula hydro-cylinder that lifts of step hydraulic pressure which characterized in that: the multi-stage lifting type oil cylinder has the advantages of reasonable structure, reliable use, easy assembly, high lifting speed and stable retraction; the method comprises the following steps: the oil cylinder comprises a cylinder barrel (1), a primary cylinder barrel (2), a secondary cylinder barrel (3), a piston (4), a tertiary piston rod (5), a gland (6), a cylinder cover (7), a sealing part (8), a pressing ring (9), an oil nozzle (10), a ball head valve rod (11), a first oil port (12) and a second oil port (13); a primary cylinder barrel (2) is sleeved in the cylinder barrel (1), and a secondary cylinder barrel (3) is sleeved in the primary cylinder barrel (2); a piston (4) is arranged in the second-stage cylinder barrel (3), and one side of the piston (4) is connected with a third-stage piston rod (5) through threads; one ends of the cylinder barrel (1), the primary cylinder barrel (2) and the secondary cylinder barrel (3) are respectively provided with a gland (6), and the screw threads of the gland (6) are connected with the cylinder barrel (1), the primary cylinder barrel (2) and the secondary cylinder barrel (3); a cylinder cover (7) is arranged at one end of the secondary cylinder barrel (3), and the cylinder cover (7) is connected with the secondary cylinder barrel (3) through a gland (6); a pressing ring (9) is arranged on one side of the cylinder cover (7), and the pressing ring (9) is connected with the cylinder cover (7) through a bolt; sealing parts (8) are arranged on the inner sides of the end parts of the cylinder barrel (1), the primary cylinder barrel (2) and the cylinder cover (7); the other end of the cylinder barrel (1) is provided with a slotted hole for accommodating an oil nozzle (10) and a ball head valve rod (11), and the oil nozzle (10) is connected with the cylinder barrel (1) through threads; the ball valve rod (11) is arranged at the lower end of the oil nozzle (10), and the ball valve rod (11) is connected with the cylinder barrel (1) through a spring; the other end of the cylinder barrel (1) is provided with a first oil port (12) and a second oil port (13), and the first oil port (12) and the second oil port (13) are communicated with the slotted hole.
2. The pure step hydraulic multistage lifting type oil cylinder according to claim 1, characterized in that: the ladder slotted hole has all been seted up to the inboard of cylinder (1), one-level cylinder (2) and cylinder cap (7) tip, and installs sealing member (8) in the ladder slotted hole.
3. The pure step hydraulic multistage lifting type oil cylinder according to claim 1, characterized in that: the sealing component (8) is composed of a pressure ring, a copper ring and a plurality of sealing rings clamped between the pressure ring and the copper ring, and the sealing rings are V-shaped sealing rings.
4. The pure step hydraulic multistage lifting type oil cylinder according to claim 1, characterized in that: the rod end of the ball head valve rod (11) is connected with the cylinder barrel (1) in a sliding mode, and the ball head end of the ball head valve rod (11) is abutted to the lower end of the oil nozzle (10).
5. The pure step hydraulic multistage lifting type oil cylinder according to claim 1, characterized in that: the size of the first oil port (12) is larger than that of the second oil port (13).
6. The pure step hydraulic multistage lifting type oil cylinder according to claim 1, characterized in that: and a through hole matched with the second oil port (13) is formed in the middle of the oil nozzle (10), and the second oil port (13) is communicated with the inner side of the oil nozzle (10) through the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824367.XU CN211501168U (en) | 2019-10-28 | 2019-10-28 | Pure-step hydraulic multistage lifting type oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921824367.XU CN211501168U (en) | 2019-10-28 | 2019-10-28 | Pure-step hydraulic multistage lifting type oil cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN211501168U true CN211501168U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921824367.XU Expired - Fee Related CN211501168U (en) | 2019-10-28 | 2019-10-28 | Pure-step hydraulic multistage lifting type oil cylinder |
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| CN (1) | CN211501168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431811A (en) * | 2020-12-04 | 2021-03-02 | 徐州徐工液压件有限公司 | Double-cylinder combined type multi-stage bolt hydraulic cylinder |
-
2019
- 2019-10-28 CN CN201921824367.XU patent/CN211501168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431811A (en) * | 2020-12-04 | 2021-03-02 | 徐州徐工液压件有限公司 | Double-cylinder combined type multi-stage bolt hydraulic cylinder |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 |
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| CF01 | Termination of patent right due to non-payment of annual fee |