CN209704972U - Three oil pocket energy-conserving hydraulic cylinders - Google Patents
Three oil pocket energy-conserving hydraulic cylinders Download PDFInfo
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- CN209704972U CN209704972U CN201920287442.7U CN201920287442U CN209704972U CN 209704972 U CN209704972 U CN 209704972U CN 201920287442 U CN201920287442 U CN 201920287442U CN 209704972 U CN209704972 U CN 209704972U
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- oil
- oil pocket
- piston rod
- hydraulic
- hollow piston
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Abstract
The utility model discloses a kind of three oil pocket energy-conserving hydraulic cylinders, including cylinder barrel and the cylinder bottom and end cap that are mounted on cylinder barrel, hollow piston rod is installed in the cylinder barrel, piston is installed on the hollow piston rod, piston rod is installed inside the hollow piston rod, the piston, cylinder barrel, the first oil pocket is formed between cylinder bottom and hollow piston rod, the piston, cylinder barrel, cylinder bottom, the second oil pocket is formed between hollow piston rod and piston rod, third oil pocket is formed between the piston rod and hollow piston rod, second oil pocket is connected with accumulator, the hollow piston rod retraction makes the hydraulic oil of the second oil pocket enter accumulator accumulation of energy, the hydraulic oil of the accumulator enters the second oil pocket and provides thrust to hollow piston rod.By the above-mentioned means, three oil pocket energy-conserving hydraulic cylinder of the utility model, can reduce the power of flow required for hydraulic pump and engine in entire oil cylinder operational process, reaches energy-efficient purpose.
Description
Technical field
The utility model relates to hydraulic system fields, more particularly to a kind of three oil pocket energy-conserving hydraulic cylinders.
Background technique
Existing hydraulic cylinder is essentially all two oil pocket hydraulic cylinders, the driving device of hydraulic system directly with hydraulic cylinder
Large and small chamber is connected, and hydraulic cylinder flow required when running all is provided by hydraulic pump.When cylinder diameter is larger or movement velocity is too fast
When, hydraulic cylinder needs biggish flow.Hydraulic pump is required to need to provide big flow in this way, engine needs big function
Rate is just able to satisfy the requirement of hydraulic cylinder.
Summary of the invention
The utility model can reduce entire oil mainly solving the technical problems that provide a kind of three oil pocket energy-conserving hydraulic cylinders
The power of flow required for hydraulic pump and engine in cylinder operational process reaches energy-efficient purpose.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of three oil pockets energy conservation
Hydraulic cylinder is equipped with hollow piston rod in the cylinder barrel including cylinder barrel and the cylinder bottom and end cap that are mounted on cylinder barrel, described hollow
Piston is installed on piston rod, piston rod, the piston, cylinder barrel, cylinder bottom and hollow work are installed inside the hollow piston rod
The first oil pocket is formed between stopper rod, and the second oil pocket, institute are formed between the piston, cylinder barrel, cylinder bottom, hollow piston rod and piston rod
It states formation third oil pocket, second oil pocket between piston rod and hollow piston rod to be connected with accumulator, the hollow piston
Bar retraction makes the hydraulic oil of the second oil pocket enter accumulator accumulation of energy, and the hydraulic oil of the accumulator enters the second oil pocket to hollow work
Stopper rod provides thrust.
In one preferred embodiment of the utility model, the end cap is equipped with the first oil being connected with the first oil pocket
Mouthful, the second hydraulic fluid port being connected with the second oil pocket is offered on the cylinder bottom, the hollow piston rod is equipped with and third oil pocket
The third hydraulic fluid port of connection.
In one preferred embodiment of the utility model, the first oil pocket oil inlet, third oil pocket oil return, hollow piston rod
It retracts, the hydraulic oil of the second oil pocket enters accumulator by the second hydraulic fluid port.
In one preferred embodiment of the utility model, the third oil pocket oil inlet, the first oil pocket oil return, the liquid of accumulator
Pressure oil enters the second oil pocket by the second hydraulic fluid port and hollow piston rod is pushed to stretch out.
In one preferred embodiment of the utility model, the volume of first oil pocket and third oil pocket is less than the second oil pocket
Volume.
In one preferred embodiment of the utility model, first oil pocket and third oil pocket and external fluid pressure drive device
Connection.
The beneficial effects of the utility model are: three oil pocket energy-conserving hydraulic cylinder of the utility model, can reduce entire oil cylinder fortune
The power of flow and engine required for hydraulic pump during row, reaches energy-efficient purpose.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the structural schematic diagram of three oil pocket energy-conserving hydraulic cylinder of the utility model, one preferred embodiment；
Fig. 2 is the hydraulic schematic diagram of three oil pocket energy-conserving hydraulic cylinders；
The components in the drawings are labeled as follows: 1, cylinder barrel, 2, cylinder bottom, 3, end cap, 4, hollow piston rod, 5, piston, 6, work
Stopper rod, the 7, first oil pocket, the 8, second oil pocket, 9, third oil pocket, 10, accumulator, the 11, first hydraulic fluid port, the 12, second hydraulic fluid port, 13,
Three hydraulic fluid ports, 14, external fluid pressure drive device.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Referring to Fig. 1, a kind of three oil pocket energy-conserving hydraulic cylinders, including cylinder barrel 1 and the cylinder bottom 2 and end cap that are mounted on cylinder barrel 1
3, hollow piston rod 4 is installed in cylinder barrel 1, piston 5 is installed on hollow piston rod 4, piston is installed inside hollow piston rod 4
Bar 6 forms the first oil pocket 7, piston 5, cylinder barrel 1, cylinder bottom 2, hollow work between piston 5, cylinder barrel 1, cylinder bottom 2 and hollow piston rod 4
The second oil pocket 8 is formed between stopper rod 4 and piston rod 6, and third oil pocket 9, the second oil are formed between piston rod 6 and hollow piston rod 4
Chamber 8 is connected with accumulator 10, and the retraction of hollow piston rod 4 makes the hydraulic oil of the second oil pocket 8 enter 10 accumulation of energy of accumulator, accumulator
10 hydraulic oil enters the second oil pocket 8 and provides thrust to hollow piston rod 4.
In addition, end cap 1 is equipped with the first hydraulic fluid port 11 being connected with the first oil pocket 7, offered and the second oil pocket on cylinder bottom 2
8 the second hydraulic fluid ports 12 being connected, hollow piston rod 4 are equipped with the third hydraulic fluid port 13 being connected to third oil pocket 9.
In addition, 7 oil inlet of the first oil pocket, 9 oil return of third oil pocket, hollow piston rod 4 retract, the hydraulic oil of the second oil pocket 8 is logical
It crosses the second hydraulic fluid port 12 and enters accumulator 10.
In addition, 9 oil inlet of third oil pocket, 7 oil return of the first oil pocket, the hydraulic oil of accumulator 10 enters the by the second hydraulic fluid port 12
Two oil pockets 8 push hollow piston rod 4 to stretch out.
In addition, volume of the volume of the first oil pocket 7 and third oil pocket 9 less than the second oil pocket 8.
In addition, the first oil pocket 7 and third oil pocket 9 are connect with external fluid pressure drive device 14.
The specific working principle is as follows for three oil pocket energy-conserving hydraulic cylinder of the utility model: when 11 oil inlet of the first hydraulic fluid port on end cap 3,
First oil pocket, 7 oil inlet, 9 oil return of third oil pocket, hollow piston rod 4 retract, and the hydraulic oil of the second oil pocket 8 passes through the on cylinder bottom 2
Two hydraulic fluid ports 12 enter accumulator 10, to accumulator 10 fill can, and when oil cylinder is vertically-mounted, hollow piston rod 4 and piston rod 6
On loaded article also due to gravity is ready, to accumulator 10 fill can,
When 13 oil inlet of third hydraulic fluid port on hollow piston rod 4,9 oil inlet of third oil pocket, 7 oil return of the first oil pocket.Accumulator 10
Energy discharges, and the hydraulic oil in accumulator 10 enters the second oil pocket 8 by the second hydraulic fluid port 12, and hollow piston rod 4 is with faster speed
Degree stretches out.
Most of flow needed for providing hydraulic cylinder operation due to accumulator, to reduce in entire oil cylinder operational process
The power of flow and engine required for hydraulic pump, energy-efficient purpose of having practised.
It is different from the prior art, three oil pocket energy-conserving hydraulic cylinder of the utility model can reduce in entire oil cylinder operational process
The power of flow and engine required for hydraulic pump reaches energy-efficient purpose.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass, is also included in the patent protection scope of the utility model.
Claims (6)
1. a kind of three oil pocket energy-conserving hydraulic cylinders, including cylinder barrel and the cylinder bottom and end cap that are mounted on cylinder barrel, which is characterized in that described
Hollow piston rod is installed in cylinder barrel, piston is installed on the hollow piston rod, work is installed inside the hollow piston rod
Stopper rod forms the first oil pocket, the piston, cylinder barrel, cylinder bottom, hollow work between the piston, cylinder barrel, cylinder bottom and hollow piston rod
The second oil pocket is formed between stopper rod and piston rod, formation third oil pocket between the piston rod and hollow piston rod, described second
Oil pocket is connected with accumulator, and the hollow piston rod retraction makes the hydraulic oil of the second oil pocket enter accumulator accumulation of energy, the storage
The hydraulic oil of energy device enters the second oil pocket and provides thrust to hollow piston rod.
2. three oil pockets energy-conserving hydraulic cylinder according to claim 1, which is characterized in that the end cap is equipped with and the first oil pocket
The first hydraulic fluid port being connected, offers the second hydraulic fluid port being connected with the second oil pocket on the cylinder bottom, on the hollow piston rod
Equipped with the third hydraulic fluid port being connected to third oil pocket.
3. three oil pockets energy-conserving hydraulic cylinder according to claim 2, which is characterized in that the first oil pocket oil inlet, third oil
Chamber oil return, hollow piston rod retract, and the hydraulic oil of the second oil pocket enters accumulator by the second hydraulic fluid port.
4. three oil pockets energy-conserving hydraulic cylinder according to claim 2, which is characterized in that the third oil pocket oil inlet, the first oil
Chamber oil return, the hydraulic oil of accumulator enter the second oil pocket by the second hydraulic fluid port and hollow piston rod are pushed to stretch out.
5. three oil pockets energy-conserving hydraulic cylinder according to claim 1 to 4, which is characterized in that first oil pocket and third
Volume of the volume of oil pocket less than the second oil pocket.
6. three oil pockets energy-conserving hydraulic cylinder according to claim 5, which is characterized in that first oil pocket and third oil pocket with
External fluid pressure drive device connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287442.7U CN209704972U (en) | 2019-03-07 | 2019-03-07 | Three oil pocket energy-conserving hydraulic cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920287442.7U CN209704972U (en) | 2019-03-07 | 2019-03-07 | Three oil pocket energy-conserving hydraulic cylinders |
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| Publication Number | Publication Date |
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| CN209704972U true CN209704972U (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920287442.7U Active CN209704972U (en) | 2019-03-07 | 2019-03-07 | Three oil pocket energy-conserving hydraulic cylinders |
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| CN (1) | CN209704972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412922A (en) * | 2020-11-27 | 2021-02-26 | 徐州徐工液压件有限公司 | Energy-saving hydraulic cylinder with built-in core tube |
-
2019
- 2019-03-07 CN CN201920287442.7U patent/CN209704972U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412922A (en) * | 2020-11-27 | 2021-02-26 | 徐州徐工液压件有限公司 | Energy-saving hydraulic cylinder with built-in core tube |
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